Updated changelog

Generative AI Policy

.github/ISSUE_TEMPLATE/🐛-bug-report.md

@@ -12,10 +12,15 @@ Before creating a bug report on this issue tracker, you **must** read the [Contr
 
 - The issue tracker is used by developers of this project. **Do not use it to ask general questions, or for support requests**.
 - Ideas and feature requests can be made on the [Discussions](https://github.com/markqvist/Reticulum/discussions). **Only** feature requests accepted by maintainers and developers are tracked and included on the issue tracker. **Do not post feature requests here**.
-- After reading the [Contribution Guidelines](https://github.com/markqvist/Reticulum/blob/master/Contributing.md), delete this section from your bug report.
+- Do not submit code written using large language models (LLMs) or other generative 'AI' programs (see the [Generative AI Policy](/Contributing.md#generative-ai-policy) for details).
+- After reading the [Contribution Guidelines](https://github.com/markqvist/Reticulum/blob/master/Contributing.md), **delete this section only** (*"Read the Contribution Guidelines"*) from your bug report, **and fill in all the other sections**.
 
 **Describe the Bug**
-A clear and concise description of what the bug is.
+First of all: Is this really a bug? Is it reproducible?
+
+If this is a request for help because something is not working as you expected, stop right here, and go to the [discussions](https://github.com/markqvist/Reticulum/discussions) instead, where you can post your questions and get help from other users.
+
+If this really is a bug or issue with the software, remove this section of the template, and provide **a clear and concise description of what the bug is**.
 
 **To Reproduce**
 Describe in detail how to reproduce the bug.
@@ -24,7 +29,7 @@ Describe in detail how to reproduce the bug.
 A clear and concise description of what you expected to happen.
 
 **Logs & Screenshots**
-Please include any relevant log output. If applicable, also add screenshots to help explain your problem.
+Please include any relevant log output. If applicable, also add screenshots to help explain your problem. In most cases, without any relevant log output, we will not be able to determine the cause of the bug, or reproduce it.
 
 **System Information**
 - OS and version

.github/workflows/build.yml

@@ -0,0 +1,98 @@
+name: Build Reticulum
+
+on:
+  push:
+    branches: 
+      - '*'
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+*"
+  pull_request:
+    branches: 
+      - master
+    paths-ignore:
+      - .gitignore
+      - LICENSE
+
+permissions:
+  contents: write
+
+concurrency: 
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+      - run: |
+          python -m pip install -q cryptography
+          make test
+
+  package:
+    needs: test
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    environment: ${{ contains(github.ref, '-') && 'development' || 'production' }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+      - run: |
+          python -m pip install -q build wheel setuptools
+          make remove_symlinks
+          make build_wheel
+          make build_pure_wheel
+          make create_symlinks
+      - uses: actions/upload-artifact@v4
+        with:
+          name: package
+          path: dist/*.whl
+
+  # documentation:
+  #   needs: test
+  #   if: startsWith(github.ref, 'refs/tags/')
+  #   runs-on: ubuntu-latest
+  #   environment: ${{ contains(github.ref, '-') && 'development' || 'production' }}
+  #   steps:
+  #     - uses: actions/checkout@v4
+  #     - uses: actions/setup-python@v5
+  #       with:
+  #         python-version: 3.x
+  #     - run: |
+  #         sudo apt-get -qq update && sudo apt-get -qq install latexmk texlive-latex-recommended texlive-latex-extra texlive-fonts-recommended
+  #         python -m pip -q install sphinx sphinx-copybutton
+  #         cd docs && make latexpdf && make epub
+  #     - uses: actions/upload-artifact@v4
+  #       with:
+  #         name: documentation
+  #         path: |
+  #           docs/build/latex/*.pdf
+  #           docs/build/epub/*.epub
+
+  release:
+    needs: [package]
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    environment: ${{ contains(github.ref, '-') && 'development' || 'production' }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
+        with:
+          path: .artifacts
+      - uses: softprops/action-gh-release@v2
+        with:
+          files: |
+#            .artifacts/package/**.whl
+#            .artifacts/documentation/latex/reticulumnetworkstack.pdf
+#            .artifacts/documentation/epub/ReticulumNetworkStack.epub
+          draft: true
+          generate_release_notes: true
+          prerelease: ${{ contains(github.ref, '-') }}
+          fail_on_unmatched_files: true

CRNS/__init__.py

@@ -0,0 +1,26 @@
+compiling = False
+noticed = False
+notice_delay = 0.3
+import time
+import sys
+import threading
+from importlib.util import find_spec
+if find_spec("pyximport") and find_spec("cython"):
+    import pyximport; pyxloader = pyximport.install(pyimport=True, language_level=3)[1]
+
+def notice_job():
+    global noticed
+    started = time.time()
+    while compiling:
+        if time.time() > started+notice_delay and compiling:
+            noticed = True
+            print("Compiling RNS object code... ", end="")
+            sys.stdout.flush()
+            break
+        time.sleep(0.1)
+
+
+compiling = True
+threading.Thread(target=notice_job, daemon=True).start()
+import RNS; compiling = False
+if noticed: print("Done."); sys.stdout.flush()

Changelog.md

@@ -1,3 +1,506 @@
+### 2025-05-15: RNS β 0.9.6
+
+This release activates AES-256 as the default encryption mode for all communication. It is the last release that will support the old AES-128 based modes, which will be entirely phased out in the next release.
+
+This release also includes a number of API and resource consumption improvements, and fixes a bug.
+
+**Changes**
+- Enabled AES-256 as default encryption mode for all traffic
+- Added dynamic link keepalive and timeout calculation
+- Added ability to efficiently transfer files as responses in the `Request` API
+- Added ability to include metadata on `Resource` transfers
+- Added option to specify `Resource` auto-compression limits
+- Added option to specify `Request` response auto-compression limits
+- Added `Resource` transfer example
+- Added allow overwrite option to `rncp`
+- Improved hardware MTU auto-configuration
+- Improved handling of file transfers using the `Resource` API
+- Improved `Resource` transfer memory consumption
+- Improved memory consumption of applications connected to a shared instance
+- Improved `rncp` memory consumption for large files
+- Fixed announce handlers not triggering after shared instance disappearance
+
+**Release Hashes**
+```
+a23c64a04c1e83fd0ab449f564ac904da7fd4f61c0faf68a063f486cc48b44bd rns-0.9.6-py3-none-any.whl
+4544882dea902b18b00d8a04c9ab93201974573b7b63c3db06cb310b0acec240 rnspure-0.9.6-py3-none-any.whl
+```
+
+### 2025-05-09: RNS β 0.9.5
+
+This release initiates migration of Reticulum from AES-128 to AES-256 as the default link and packet cipher mode. It is a compatibility/migration release, that while supporting AES-256 doesn't use it by default. It will work with both the old AES-128 based modes, and the new AES-256 based modes. There's a very slight penalty in performance to support both the old and new modes at the same time, but only for single packet APIs (not links), and it really shouldn't be noticeable in any everyday use.
+
+In the next release, version `0.9.6`, Reticulum will transition fully to AES-256 and use it by default for all communications. That means that both single packets and links will use AES-256 by default. The old AES-128 link mode may or may not be available for a few releases, but will ultimately be phased out entirely.
+
+The update requires no intervention, configuration changes or anything similar from a users or developers perspective. Everything should simply work. This goes both for the `0.9.5` update, and the next `0.9.6` update that transitions fully to AES-256.
+
+**Changes**
+- Added support for AES-256 mode to links and packets
+- Added dynamic link mode support
+- Added temporary backwards compatibility for AES-128 link and packet modes
+- Added `get_mode()` method to link API
+- Added tests for all enabled link modes
+- Added `instance_name` option and description to default config file
+- Improved ratchet persist reliability if Reticulum is force killed while persisting ratchets
+- Fixed interface string representation for some interfaces
+- Fixed instance name config option being overwritten if option was not last in section
+- Fixed unhandled potential exception on fast-flapping `BackboneInterface` connections
+
+**Release Hashes**
+```
+ae6587c86c98cae0df73567af093cc92fe204e71bb01f2506da9aec626a27e97 rns-0.9.5-py3-none-any.whl
+96208c1d1234e3e4b1c18ca986bad5d4693aeb431453efd7ade33b87f35600e1 rnspure-0.9.5-py3-none-any.whl
+```
+
+### 2025-04-15: RNS β 0.9.4
+
+This release significantly improves memory utilisation and performance. It also includes a few new features and general improvements to the included utilities and programs.
+
+**Changes**
+- Significantly improved memory utilisation, thread count and performance on nodes with many interfaces or clients
+- Switched local instance communication to run over abstract domain sockets on Linux and Android
+- Switched instance IPC to run over abstract domain sockets on Linux and Android
+- Added kernel event based I/O backend on Linux and Android
+- Added fast `BackboneInterface` type
+- Added support for XIAO-ESP32S3 to `rnodeconf`
+- Added interactive shell option to `rnsd`
+- Added API option to search for identity by identity hash
+- Added option to run TCP and Backbone interfaces in AP mode
+- Improved `RNodeMultiInterface` host communications specification
+- Improved `rncp` statistics output
+- Improved link and reverse-table culling
+- Fixed an occasional I/O thread hang on instance shutdown, that would result in an error printed to the console
+- Fixed various minor interface logging inconsistencies
+- Fixed various minor interface checking inconsistencies
+- Updated internal `configobj` implementation
+- Refactored various parts of the transport core code
+- Swicthed to using internal `netinfo` implementation instead of including full `ifaddr` library
+- Cleaned out unneeded dependencies
+
+**Release Hashes**
+```
+737294f29e013f9fa9c8c1326006d0547497607156828fee3dc2a0d3ddd754e7  rns-0.9.4-py3-none-any.whl
+0bd8a908af115c27733484853d779574d6383ebc1d78160e5a72c14ed9692a13  rnspure-0.9.4-py3-none-any.whl
+```
+
+### 2025-03-13: RNS β 0.9.3
+
+This maintenance release improves performance and fixes a number of bugs.
+
+**Changes**
+- Enabled link MTU discovery by default
+- Added on-demand object code compilation and loader shim
+- Added link API methods
+- Added child interface spawning for AutoInterface
+- Fixed corrupt ratchet files not being removed on maintenance cleaning
+- Fixed `rnid` not waiting for announce timebase tick before announcing
+
+**Release Hashes**
+```
+0270c988a2b898b28348cd78138667115d4ef3f7e09c86531baaefbee35ef851 rns-0.9.3-py3-none-any.whl
+eee1a6c4c9c0f04bb17b12b8fb37b9c4cec12a99c87a046730eb7c9a6ffd999f rnspure-0.9.3-py3-none-any.whl
+```
+
+### 2025-01-19: RNS β 0.9.2
+
+This maintenance release fixes a number of bugs.
+
+**Changes**
+- Fixed missing RX/TX bytes statistics assignment
+- Fixed potential daemon thread IO buffer deadlock on externally mediated shutdown signal
+- Fixed missing check for path announce emission timestamp in lower hop-count announce processing
+
+**Release Hashes**
+```
+068eb4408b332ea6eec1a58fb4644fba3531c9ca10dcd79ecf893aaaf40e720d rns-0.9.2-py3-none-any.whl
+1e7c123d244cc14c287568f3a99953cc11ffc1e79a72a029aa1be72fa8eff24e rnspure-0.9.2-py3-none-any.whl
+```
+
+### 2025-01-19: RNS β 0.9.1
+
+This maintenance release adds reject signalling mechanism to resource transfers, fixes inconsistencies in the code examples, and improves thread configuration in the transport core.
+
+**Changes**
+- Added resource reject signalling
+- Added error reporting on configured radio parameter mismatch on Android
+- Improved thread configuration for transport core threads
+- Updated examples
+
+**Release Hashes**
+```
+49288a562ad6d4b5647c3afec051a6bb6497b75e3f165a972436134d4a93ad76 rns-0.9.1-py3-none-any.whl
+abd6c4bdead2fc25d0b9b2cda5708586e8cb776b088f2a901a5f262e2ed901ae rnspure-0.9.1-py3-none-any.whl
+```
+
+### 2025-01-17: RNS β 0.9.0
+
+This release lays the groundwork for future performance and resource utilisation optimisations. Most importantly, this release adds **link MTU autodiscovery**, which allow established links to use much higher MTUs than the base MTU of 500 bytes.
+
+**Please note!** To actually use link MTU discovery, all transport nodes along the path must be upgraded to at least version `0.9.0`. Since this is the first release to add support for this feature, *it is currently **not** activated by default*, and no clients or applications will use it yet. Using link MTU autodiscovery by default will be enabled by default in RNS version `0.9.1`. Please upgrade your nodes!
+
+Additionally, this release adds several new features, performance improvements and bug fixes, as well as support for RNodes running firmware version `1.81`.
+
+**Changes**
+- Added MTU autoconfiguration on interfaces that support higher MTUs
+- Added link MTU autodiscovery and path clamping
+- Added dynamic SDU calculations based on link MTU to `Resource`, `Channel` and `Buffer`
+- Added resource EIFR continuity to split resource handling
+- Added interference status to `RNodeInterface`
+- Fixed a display bug in `rnstatus`
+- Added live traffic stats to `rnstatus`
+- Added T3S3 support to `rnodeconf`
+- Added Heltec T114 support to `rnodeconf`
+- Added LilyGO T-Echo support to `rnodeconf`
+- Added option to print device configuration to `rnodeconf`
+- Improved CPU utilisation and memory consumption
+- Improved `rnsd` restart time on systems with many interfaces
+- Improved `rncp` status output
+- Improved packet filter performance
+- Improved interface detachment handling
+- Improved resource transfer timing and performance
+- Improved Transport core efficiency
+- Improved reliability of ratchet reloads if I/O conflicts occur
+- Improved logging
+- Improved built-in profiler
+- Fixed a potential deadlock in logging
+- Fixed time formatters not handling negative times
+- Updated example code
+
+**Release Hashes**
+```
+1ee60634cf0627c45b93f4e6c9adaf1fcdf9c1a8dfd4dd3dcd499e029554ab4f rns-0.9.0-py3-none-any.whl
+b67eec583fdb224ba8174b317e66b8f7344e338e93760ed1a90f0bafea8cf09e rnspure-0.9.0-py3-none-any.whl
+```
+
+### 2025-01-09: RNS β 0.8.9
+
+This maintenance release adds a number of configuration options to `rnodeconf`.
+
+**Changes**
+- Added noise floor output to `rnstatus` for supported interfaces
+- Added channel noise floor and CSMA parameter reporting to `RNodeInterface`
+- Added ability to set display rotation in `rnodeconf`
+- Added ability to configure interference avoidance to `rnodeconf`
+- Fixed missing console image install on Heltec V3 in `rnodeconf`
+
+**Release Hashes**
+```
+b54fe8bc296f83a3a70569c9d1e9db3096249789c18f8d0217671479fa6881a1 rns-0.8.9-py3-none-any.whl
+52fd992e5f9478d5a1f61f8f37dc0ee2d268fdd0b8a4e6656d33d632490afc5a rnspure-0.8.9-py3-none-any.whl
+```
+
+### 2024-12-11: RNS β 0.8.8
+
+This maintenance release adds a single API function and fixes a bug.
+
+**Changes**
+- Allow announce handlers to receive announce packet hash
+- Fix packet RSSI/SNR/Q cache not being available on standalone instances
+
+**Release Hashes**
+```
+9c1755a81049c67b051ecb9fe4b2c5f7d98bf09d20ed52d6ce6a410298b0527b rns-0.8.8-py3-none-any.whl
+d8871d69cde4b0a0b99b383f324d651dc77a2f44ec9641be828902c778a8d128 rnspure-0.8.8-py3-none-any.whl
+```
+
+### 2024-12-09: RNS β 0.8.7
+
+This maintenance release adds support for OpenWRT packaging, and brings several minor improvements and bugfixes.
+
+Thanks to @gretel and @jacobeva, who contributed to this release!
+
+**Changes**
+- Added support for packaging RNS to OpenWRT
+- Added ability to run `rnstatus` as application-local imported module
+- Added ability to reflect RNS log output to app-internal log handler callback
+- Added display read functionality to `RNodeInterface`
+- Fixed a regression in `RNodeMultiInterface` caused by earlier refactoring
+- Imrpoved documentation
+
+**Release Hashes**
+```
+e76ba8feeeae2c8df27e9906deebd7c721f0f0e887ad3fbd26df0212d6ce907a rns-0.8.7-py3-none-any.whl
+046608539bc235d52c970c7f3c54e7aa01a86016ae00263f8a55fc796b6939f5 rnspure-0.8.7-py3-none-any.whl
+```
+
+### 2024-11-24: RNS β 0.8.6
+
+This release adds full interface modularity and custom interface loading to RNS. Users can now easily create and use their own custom interfaces for communicating over practically anything. Support for IPv6 has also been added to the TCP-based interfaces.
+
+In addition, several bugs have been fixed, and various internal improvements to code consistency and naming conventions have been carried out.
+
+Thanks to @gretel and @deavmi, who contributed to this release!
+
+**Changes**
+- Added ability to load and configure custom, user-supplied interfaces
+- Added IPv6 support to `TCPClientInterface` and `TCPServerInterface`
+- Added an init option to the API for requiring an existing shared instance
+- Changed `rnstatus` behaviour to only show status if Reticulum is already running
+- Fixed `KISSInterface` beacon length for compatibility with software modems
+- Fixed interface client count sometimes reporting incorrect values on TCP and I2P interfaces
+- Refactored and improved interface initialisation and configuration handling
+- Refactored interface code to be more consistent
+- Refactored various deprecated references and names
+- Updated documentation and manual
+
+**Release Hashes**
+```
+60be127f003cd7838149bf8f01020206f829a7bd192706a608e39d8d7193d07b rns-0.8.6-py3-none-any.whl
+d8701e19279d292b5b8af9da7c67b6ac88a992ca65109f8182c3e5c761a9ebeb rnspure-0.8.6-py3-none-any.whl
+```
+
+### 2024-10-20: RNS β 0.8.5
+
+This maintenance release fixes a number of bugs. Thanks to @faragher for contributing to this release!
+
+**Changes**
+- Fixed missing close of file handles
+- Fixed invalid values returned from `get_snr()` and `get_q()` physical layer stats API functions
+
+**Release Hashes**
+```
+1757e809e083585bf4c23b6fe0f29954e5a1586ce14081099e38e606a75831df rns-0.8.5-py3-none-any.whl
+44254630634f4dbb1ce3242247fe8180379d27bff15d183263b1856fd662f88d rnspure-0.8.5-py3-none-any.whl
+```
+
+### 2024-10-11: RNS β 0.8.4
+
+This release fixes a number of bugs and improves reliability of automatic reconnection when BLE-connected RNodes unexpectedly disappear or lose connection.
+
+**Changes**
+- Improved RNode BLE reconnection realiability
+- Added RNode battery state to `rnstatus` output
+- Fixed resource transfer hanging for a long time over slow links if proof packet is lost
+- Fixed missing import on Android
+
+**Release Hashes**
+```
+d3f7a9fddc6c1e59b1e4895756fe602408ac6ef09de377ee65ec62d09fff97a3 rns-0.8.4-py3-none-any.whl
+eb3843bcab1428be0adb097988991229a4c03156ab40cc9c6e2d9c590d8b850b rnspure-0.8.4-py3-none-any.whl
+```
+
+### 2024-10-10: RNS β 0.8.3
+
+This release fixes a bug in resource transfer progress calculation, improves RNode error handling, and brings minor improvements to the `rncp` utility.
+
+**Changes**
+- Fixed a bug in resource transfer progress calculations
+- Added physical layer transfer rate output option to `rncp`
+- Added save directory option to `rncp`
+- Improved path handling for the fetch-jail option of of `rncp`
+- Added error detection for modem communication timeouts on connected RNode devices
+
+**Release Hashes**
+```
+54ddab32769081045db5fe45b27492cc012bf2fad64bc65ed37011f3651469fb rns-0.8.3-py3-none-any.whl
+a04915111d65b05a5f2ef2687ed208813034196c0c5e711cb01e6db72faa23ef rnspure-0.8.3-py3-none-any.whl
+```
+
+### 2024-10-06: RNS β 0.8.2
+
+This release adds several new boards to `rnodeconf`, fixes a range of bugs and improves transport reliability.
+
+Thanks to @jacobeva, @prusnak and @deavmi who contributed to this release!
+
+**Changes**
+- Added support for T-Beam Supreme devices to `rnodeconf`
+- Added support for T3S3 devices to `rnodeconf`
+- Added support for T-Deck devices to `rnodeconf`
+- Added support for new hardware error codes from connected RNodes
+- Added the ability to control the display on nRF52-based RNodes
+- Improved resource transfers over very slow links, by adding more suitable `MAX_WINDOW` cap if link speed is continously below threshold.
+- Improved `rnodeconf` flashing so manual resets for some devices are no longer required
+- Added edge case handling for receiving a link proof after the link had timed out and been closed, but before it having been purged from active links table
+- Updated supported hardware section of the manual with new boards
+- Tuned path request timing for roaming instances
+- Fixed a bug that caused RNS to fail to initialise in Termux on Android
+- Fixed a bug in RNodeInterface firmware version comparison
+- Fixed a bug in the serial framing of RNodeMultiInterface
+- Fixed a bug in sub-interface spawning of RNodeMultiInterface
+
+**Release Hashes**
+```
+db720a727a09c0c9d76288dec5a995a30146e65d6a4c5c034f47fb60a78f4962 rns-0.8.2-py3-none-any.whl
+ee412535edba48817551658247fb0c843d17e1c97cad9d2a819a7fc627c5ba28 rnspure-0.8.2-py3-none-any.whl
+```
+
+### 2024-10-02: RNS β 0.8.1
+
+This release adds BLE support to RNodeInterface, and support for configuring additional options to `rnodeconf`.
+
+**Changes**
+- Added Bluetooth Low Energy support to RNodeInterface
+- Added RNode battery information to `rnstatus` output
+- Added display blanking configuration to `rnodeconf`
+- Added NeoPixel intensity configuration to `rnodeconf`
+
+**Release Hashes**
+```
+f4b6b99b67d6b33b8a4562e5d5d5ac54c76814fff26e6c7a79950b82bd80123f rns-0.8.1-py3-none-any.whl
+c2e540b4bf0f272bb51ae3e33a02f9c07f2619746d069d7ed83d88017bf7ea30 rnspure-0.8.1-py3-none-any.whl
+```
+
+### 2024-09-25: RNS β 0.8.0
+
+This maintenance release improves the interface statistics API, and updates documentation.
+
+**Changes**
+- Added additional information to interface statistics
+- Updated documentation
+
+**Release Hashes**
+```
+fa5ff6d98230693be6805bb9a94585a6f54ec0af9cba15b771d4e676f140dc43 rns-0.8.0-py3-none-any.whl
+ba20f688b69ae861c8aced251e10242a358fea15da6c22df10d4fc8846c9bf48 rnspure-0.8.0-py3-none-any.whl
+```
+
+### 2024-09-24: RNS β 0.7.9
+
+This maintenance release improves transport reliability in certain (rare) cases.
+
+**Changes**
+- Added handling of a transport edge-case
+
+**Release Hashes**
+```
+4c20c46df021d366386d497145024396f904666b0de22a92f9e5c937886ea39d rns-0.7.9-py3-none-any.whl
+97d26282df929eca732a15523bc9d7f66387a93ffd911e8063c94c3f8f6ad73c rnspure-0.7.9-py3-none-any.whl
+```
+
+### 2024-09-18: RNS β 0.7.8
+
+This maintenance release adds support for the openCom XL to `rnodeconf`, fixes a number of bugs, and also includes a few fine-tunings of timing parameters.
+
+Thanks to @liamcottle and @jacobeva for contributing to this release!
+
+**Changes**
+- Added interface prioritisation according to reported bitrate
+- Added support for openCom XL to `rnodeconf`
+- Added performance profiler to built-in debugging tools
+- Tuned link traffic timeouts
+- Fixed a module import error in AX25KissInterface
+- Fixed a missing exception on erroneous destination initialisation
+
+**Release Hashes**
+```
+33fb9443e3b327d1a9125baa52d8ec3208a089dda62f749b819e0a94c06730f9 rns-0.7.8-py3-none-any.whl
+cdced2adef4ead146239d0510fe2b9d62f69136bcd54b22d1080686fb56f9927 rnspure-0.7.8-py3-none-any.whl
+```
+
+### 2024-09-09: RNS β 0.7.7
+
+This release adds support for automatic encryption key ratcheting for all packets, not just those sent over Reticulum links. In practical terms, this adds forward secrecy to packets sent with the raw `Packet` API.
+
+In this release, the ratchets feature must be enabled on a per-destination basis by calling the `enable_ratchets` method on the relevant destination. In a future release, ratchets may become the default option, but for backwards-compatibility, it is currently optional. For more information, read the API documentation.
+
+**Please note!** Versions of RNS prior to `0.7.7` will not be able to pass announces for destinations with ratchets enabled! If you use applications that can use ratchets (for example, LXMF version `0.5.0` and up), it is important that you update all transport instances on your network to `0.7.7`.
+
+Thanks to @deavmi, @faragher, @jacobeva, @jeremy and @jeremybox for contributing to this release!
+
+**Changes**
+- Added key ratchet rotation and signalling
+- Added ratchet API to documentation
+- Added initial support for flashing T-Echo devices to `rnodeconf`
+- Added remote management config options to example config
+- Added automtic integration tests to source repository
+- Fixed a regression that caused RNS not to work on Python versions lower than 3.10
+- Fixed missing `establishment_rate` property init on Link objects
+
+**Release Hashes**
+```
+0a3ab6dc82567a19adabe737358daee3002b60beda8ac0bf228f2a0c134ff6d8 rns-0.7.7-py3-none-any.whl
+89b33fe9ab923139d3f5d43726d92817642be05a8c9d328c3becfc3c409e4b4b rnspure-0.7.7-py3-none-any.whl
+```
+
+### 2024-05-18: RNS β 0.7.6
+
+This release adds support for RNodes with multiple radio transceivers, courtesy of @jacobeva. It also brings a number of functionality and performance improvements, and fixes several bugs.
+
+Thanks to @jacobeva, @faragher, @nathmo, @jschulthess and @liamcottle for contributing to this release!
+
+**Changes**
+- Added support for RNode Multi interfaces
+- Added initial support for remote management of Reticulum instances
+- Improved resource transfer performance for large resources
+- Improved path rediscovery in topologies with roaming transport nodes
+- Fixed incorrect TX power limit on Android RNode interfaces
+- Added ability to fetch remote files to `rncp`
+- Added fetch request jail option to `rncp`
+- Improved `rncp` status display output
+- Added link table statistics to `rnstatus`
+- Fixed `rnstatus` JSON output bug when IFAC was enabled on an interface
+- Added remote instance interface status to `rnstatus`
+- Added ability to query path- and rate-tables on remote instances with `rnpath`
+- Added JSON output option to `rnpath` utility
+- Added max hops filter to `rnpath` path-table out
+- Added link age getter to API
+- Added request concluded status to API
+- Fixed invalid resource progress reported in some cases
+- Fixed `rnodeconf` failure to set firmware hash for NRF52 boards on macOS
+- Fixed broken `--rom` command line option in `rnodeconf`
+- Fixed various typos in documentation
+- Updated documentation with new API functions and features
+
+**Release Hashes**
+```
+683ac87c62fe8a18d88c26bf639f4eeca550cefb11ee8e38d6e724e268cf14fc rns-0.7.6-py3-none-any.whl
+f884806624e57b799f588de9289a31d2e0460d35bc4cc5071635de5642d50ad2 rnspure-0.7.6-py3-none-any.whl
+```
+
+### 2024-05-18: RNS β 0.7.5
+
+This release adds support for AutoInterface on Windows platforms, fixes a number of bugs and adds several new supported boards to `rnodeconf`. Thanks to @faragher, @jacobeva and @liamcottle who contributed to this release!
+
+**Changes**
+- Added support for AutoInterface on Windows
+- Added support for recursive path resolution for clients on roaming-mode interfaces
+- Added RAK4631 support to `rnodeconf`
+- Added LilyGO T3S3 support to `rnodeconf`
+- Added ability to get target and calculated hashes via `rnodeconf`
+- Fixed DTR timing making flashing fail on Windows in `rnodeconf`
+- Fixed various output and menu bugs in `rnodeconf`
+
+**Release Hashes**
+```
+99ec876966afdea45fcf164242c8e76c284f9e3edf09fb907638fba76e1324b1 rns-0.7.5-py3-none-any.whl
+11156f6301707e4d17ff2ca6d58059bc8ba6fe1bbc4dc3de165dd96dc41ee75f rnspure-0.7.5-py3-none-any.whl
+```
+
+### 2024-05-05: RNS β 0.7.4
+
+This maintenance release fixes a number of bugs, improves path requests and responses, and adds several useful features and capabilities. Thanks to @cobraPA, @jschulthess, @thiaguetz and @nothingbutlucas who contributed to this release!
+
+**Changes**
+- Added support for flashing and autoinstalling Heltec V3 boards to `rnodeconf`
+- Added custom EEPROM bootstrapping capabilities to `rnodeconf`
+- Added ability to load identities from file to Echo and Link examples
+- Added ability to specify multicast address type in AutoInterface configuration
+- Added link getter to resource advertisement class
+- Improved path response logic and timing
+- Improved path request timing
+- Fixed a bug in Link Request proof delivery on unknown hop count paths
+- Fixed broken link packet routing in topologies where transport packets leak to non-intended instances in the link chain
+- Fixed typos in documentation
+
+**Release Hashes**
+```
+f5c35f1b8720778eb508b687d66334d01b4ab266b2d8c2bc186702220dcaae29  rns-0.7.4-py3-none-any.whl
+9eaa7170f97dad49551136965d3fcc971b56b1c2eda48c24b9ffd58d71daa016  rnspure-0.7.4-py3-none-any.whl
+```
+
+### 2024-03-09: RNS β 0.7.3
+
+This release adds the ability to specify custom firmware URLs for flashing boards with `rnodeconf`. Thanks to @attermann who contributed to this release!
+
+**Changes**
+- Added ability to specify custom firmware URLs for flashing boards with `rnodeconf`
+
+**Release Hashes**
+```
+bb24445ae9a3a63d348e4d7fe80b750608f257851b97b38fadab929b7a774bc9 rns-0.7.3-py3-none-any.whl
+1b148d013103c35ba9a8e105082ef50686c130676d0a560ed709cb546129287e rnspure-0.7.3-py3-none-any.whl
+```
+
 ### 2024-03-02: RNS β 0.7.2
 
 This maintenance release improves memory consumption, fixes a few bugs, and adds ability to flash new boards with `rnodeconf`.

Contributing.md

@@ -6,7 +6,7 @@ Apart from writing code, there are many ways in which you can contribute. Before
 
 ## Expected Conduct
 
-First and foremost, there is one simple requirement for taking part in this community: While we primarily interact virtually, your actions matter and have real consequences. Therefore: **Act like a responsible, civilized person** - also in the face of disputes and heated disagreements. Speak your mind here, discussions are welcome. Just do so in the spirit of being face-to-face with everyone else. Thank you.
+First and foremost, there is one simple requirement for taking part in this community: While we primarily interact virtually, your actions matter and have real consequences. Therefore: **Act like a responsible, civilized person** - especially in the face of disputes and heated disagreements. Speak your mind here; discussions are welcome. Just do so in the spirit of being face-to-face with everyone else. Thank you.
 
 ## Asking Questions
 
@@ -28,4 +28,24 @@ Anything submitted to the issue tracker that does not follow these guidelines wi
 
 ## Writing Code
 
-If you are interested in contributing code, fixing open issues or adding features, please coordinate the effort with the maintainer or one of the main developers first, to ensure your efforts are in alignment with the [Roadmap](./Roadmap.md) and current development focus.
+If you are interested in contributing code, fixing open issues or adding features, please coordinate the effort with the maintainer or one of the main developers **before** submitting a pull request. Before deciding to contribute, it is also a good idea to ensure your efforts are in alignment with the [Roadmap](./Roadmap.md) and current development focus.
+
+Pull requests have a high chance of being accepted if they are:
+
+- In alignment with the [Roadmap](./Roadmap.md) or solve an open issue or feature request
+- Sufficiently tested to work with all API functions, and pass the standard test suite
+- Functionally and conceptually complete and well-designed
+- Not simply formatting or code style changes
+- Well-documented
+
+Even new ideas and proposals that have not been approved by a maintainer, or fall outside the established roadmap, are *occasionally* accepted - if they possess the remaining of the above qualities. If not, they will be closed and removed without comments or explanation.
+
+## Generative AI Policy
+
+Contributions written using large language models (LLMs) or other generative 'AI' programs are prohibited. LLMs produce errors so frequently and in a way that is so unlike human error that issues will regularly remain undetected and slip through, even with stringent review. This is not a worthwhile tradeoff for Reticulum, especially considering the limited time maintainers have to correct these issues, and we ask that you refrain from using any such output in your contributions.
+
+This applies to all official Reticlulm projects and documentation as well as all submitted issues and discussion in official channels, except in cases where language translation and/or speech recogntion technologies are required for communication.  We also ask that you avoid using LLMs for troubleshooting, as results can be misleading, and instead request help in one of our [various communities](https://reticulum.network/start.html).
+
+## Contributor License Agreement
+
+By contributing code to this project, you agree that copyright for the code is transferred to the Reticulum maintainers and that the code is irrevocably placed under the [Reticulum License](./LICENSE).

Examples/Announce.py

@@ -6,6 +6,7 @@
 
 import argparse
 import random
+import sys
 import RNS
 
 # Let's define an app name. We'll use this for all
@@ -168,4 +169,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Broadcast.py

@@ -118,4 +118,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Buffer.py

@@ -157,7 +157,7 @@ def client(destination_hexhash, configpath):
         destination_hash = bytes.fromhex(destination_hexhash)
     except:
         RNS.log("Invalid destination entered. Check your input!\n")
-        exit()
+        sys.exit(0)
 
     # We must first initialise Reticulum
     reticulum = RNS.Reticulum(configpath)
@@ -254,9 +254,8 @@ def link_closed(link):
     else:
         RNS.log("Link closed, exiting now")
     
-    RNS.Reticulum.exit_handler()
     time.sleep(1.5)
-    os._exit(0)
+    sys.exit(0)
 
 # When the buffer has new data, read it and write it to the terminal.
 def client_buffer_ready(ready_bytes: int):
@@ -320,4 +319,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Channel.py

@@ -124,7 +124,7 @@ def server(configpath):
 def server_loop(destination):
     # Let the user know that everything is ready
     RNS.log(
-        "Link example "+
+        "Channel example "+
         RNS.prettyhexrep(destination.hash)+
         " running, waiting for a connection."
     )
@@ -212,7 +212,7 @@ def client(destination_hexhash, configpath):
         destination_hash = bytes.fromhex(destination_hexhash)
     except:
         RNS.log("Invalid destination entered. Check your input!\n")
-        exit()
+        sys.exit(0)
 
     # We must first initialise Reticulum
     reticulum = RNS.Reticulum(configpath)
@@ -276,7 +276,7 @@ def client_loop():
                 packed_size = len(message.pack())
                 channel = server_link.get_channel()
                 if channel.is_ready_to_send():
-                    if packed_size <= channel.MDU:
+                    if packed_size <= channel.mdu:
                         channel.send(message)
                     else:
                         RNS.log(
@@ -321,9 +321,8 @@ def link_closed(link):
     else:
         RNS.log("Link closed, exiting now")
     
-    RNS.Reticulum.exit_handler()
     time.sleep(1.5)
-    os._exit(0)
+    sys.exit(0)
 
 # When a packet is received over the channel, we
 # simply print out the data.
@@ -387,4 +386,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Echo.py

@@ -6,6 +6,7 @@
 ##########################################################
 
 import argparse
+import sys
 import RNS
 
 # Let's define an app name. We'll use this for all
@@ -130,7 +131,7 @@ def client(destination_hexhash, configpath, timeout=None):
     except Exception as e:
         RNS.log("Invalid destination entered. Check your input!")
         RNS.log(str(e)+"\n")
-        exit()
+        sys.exit(0)
 
     # We must first initialise Reticulum
     reticulum = RNS.Reticulum(configpath)
@@ -328,4 +329,4 @@ if __name__ == "__main__":
                 client(args.destination, configarg, timeout=timeoutarg)
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/ExampleInterface.py

@@ -0,0 +1,297 @@
+# This example illustrates creating a custom interface
+# definition, that can be loaded and used by Reticulum at
+# runtime. Any number of custom interfaces can be created
+# and loaded. To use the interface place it in the folder
+# ~/.reticulum/interfaces, and add an interface entry to
+# your Reticulum configuration file similar to this:
+
+#  [[Example Custom Interface]]
+#    type = ExampleInterface
+#    enabled = no
+#    mode = gateway
+#    port = /dev/ttyUSB0
+#    speed = 115200
+#    databits = 8
+#    parity = none
+#    stopbits = 1
+
+from time import sleep
+import sys
+import threading
+import time
+
+# This HDLC helper class is used by the interface
+# to delimit and packetize data over the physical
+# medium - in this case a serial connection.
+class HDLC():
+    # This example interface packetizes data using
+    # simplified HDLC framing, similar to PPP
+    FLAG     = 0x7E
+    ESC      = 0x7D
+    ESC_MASK = 0x20
+
+    @staticmethod
+    def escape(data):
+        data = data.replace(bytes([HDLC.ESC]), bytes([HDLC.ESC, HDLC.ESC^HDLC.ESC_MASK]))
+        data = data.replace(bytes([HDLC.FLAG]), bytes([HDLC.ESC, HDLC.FLAG^HDLC.ESC_MASK]))
+        return data
+
+# Let's define our custom interface class. It must
+# be a sub-class of the RNS "Interface" class.
+class ExampleInterface(Interface):
+    # All interface classes must define a default
+    # IFAC size, used in IFAC setup when the user
+    # has not specified a custom IFAC size. This
+    # option is specified in bytes.
+    DEFAULT_IFAC_SIZE = 8
+
+    # The following properties are local to this
+    # particular interface implementation.
+    owner    = None
+    port     = None
+    speed    = None
+    databits = None
+    parity   = None
+    stopbits = None
+    serial   = None
+
+    # All Reticulum interfaces must have an __init__
+    # method that takes 2 positional arguments:
+    # The owner RNS Transport instance, and a dict
+    # of configuration values.
+    def __init__(self, owner, configuration):
+
+        # The following lines demonstrate handling
+        # potential dependencies required for the
+        # interface to function correctly.
+        import importlib
+        if importlib.util.find_spec('serial') != None:
+            import serial
+        else:
+            RNS.log("Using this interface requires a serial communication module to be installed.", RNS.LOG_CRITICAL)
+            RNS.log("You can install one with the command: python3 -m pip install pyserial", RNS.LOG_CRITICAL)
+            RNS.panic()
+
+        # We start out by initialising the super-class
+        super().__init__()
+
+        # To make sure the configuration data is in the
+        # correct format, we parse it through the following
+        # method on the generic Interface class. This step
+        # is required to ensure compatibility on all the
+        # platforms that Reticulum supports.
+        ifconf    = Interface.get_config_obj(configuration)
+
+        # Read the interface name from the configuration
+        # and set it on our interface instance.
+        name      = ifconf["name"]
+        self.name = name
+
+        # We read configuration parameters from the supplied
+        # configuration data, and provide default values in
+        # case any are missing.
+        port      = ifconf["port"] if "port" in ifconf else None
+        speed     = int(ifconf["speed"]) if "speed" in ifconf else 9600
+        databits  = int(ifconf["databits"]) if "databits" in ifconf else 8
+        parity    = ifconf["parity"] if "parity" in ifconf else "N"
+        stopbits  = int(ifconf["stopbits"]) if "stopbits" in ifconf else 1
+
+        # In case no port is specified, we abort setup by
+        # raising an exception.
+        if port == None:
+            raise ValueError(f"No port specified for {self}")
+
+        # All interfaces must supply a hardware MTU value
+        # to the RNS Transport instance. This value should
+        # be the maximum data packet payload size that the
+        # underlying medium is capable of handling in all
+        # cases without any segmentation.
+        self.HW_MTU = 564
+
+        # We initially set the "online" property to false,
+        # since the interface has not actually been fully
+        # initialised and connected yet.
+        self.online   = False
+
+        # In this case, we can also set the indicated bit-
+        # rate of the interface to the serial port speed.
+        self.bitrate  = speed
+        
+        # Configure internal properties on the interface
+        # according to the supplied configuration.
+        self.pyserial = serial
+        self.serial   = None
+        self.owner    = owner
+        self.port     = port
+        self.speed    = speed
+        self.databits = databits
+        self.parity   = serial.PARITY_NONE
+        self.stopbits = stopbits
+        self.timeout  = 100
+
+        if parity.lower() == "e" or parity.lower() == "even":
+            self.parity = serial.PARITY_EVEN
+
+        if parity.lower() == "o" or parity.lower() == "odd":
+            self.parity = serial.PARITY_ODD
+
+        # Since all required parameters are now configured,
+        # we will try opening the serial port.
+        try:
+            self.open_port()
+        except Exception as e:
+            RNS.log("Could not open serial port for interface "+str(self), RNS.LOG_ERROR)
+            raise e
+
+        # If opening the port succeeded, run any post-open
+        # configuration required.
+        if self.serial.is_open:
+            self.configure_device()
+        else:
+            raise IOError("Could not open serial port")
+
+    # Open the serial port with supplied configuration
+    # parameters and store a reference to the open port.
+    def open_port(self):
+        RNS.log("Opening serial port "+self.port+"...", RNS.LOG_VERBOSE)
+        self.serial = self.pyserial.Serial(
+            port = self.port,
+            baudrate = self.speed,
+            bytesize = self.databits,
+            parity = self.parity,
+            stopbits = self.stopbits,
+            xonxoff = False,
+            rtscts = False,
+            timeout = 0,
+            inter_byte_timeout = None,
+            write_timeout = None,
+            dsrdtr = False,
+        )
+
+    # The only thing required after opening the port
+    # is to wait a small amount of time for the
+    # hardware to initialise and then start a thread
+    # that reads any incoming data from the device.
+    def configure_device(self):
+        sleep(0.5)
+        thread = threading.Thread(target=self.read_loop)
+        thread.daemon = True
+        thread.start()
+        self.online = True
+        RNS.log("Serial port "+self.port+" is now open", RNS.LOG_VERBOSE)
+
+
+    # This method will be called from our read-loop
+    # whenever a full packet has been received over
+    # the underlying medium.
+    def process_incoming(self, data):
+        # Update our received bytes counter
+        self.rxb += len(data)            
+
+        # And send the data packet to the Transport
+        # instance for processing.
+        self.owner.inbound(data, self)
+
+    # The running Reticulum Transport instance will
+    # call this method on the interface whenever the
+    # interface must transmit a packet.
+    def process_outgoing(self,data):
+        if self.online:
+            # First, escape and packetize the data
+            # according to HDLC framing.
+            data = bytes([HDLC.FLAG])+HDLC.escape(data)+bytes([HDLC.FLAG])
+
+            # Then write the framed data to the port
+            written = self.serial.write(data)
+
+            # Update the transmitted bytes counter
+            # and ensure that all data was written
+            self.txb += len(data)            
+            if written != len(data):
+                raise IOError("Serial interface only wrote "+str(written)+" bytes of "+str(len(data)))
+
+    # This read loop runs in a thread and continously
+    # receives bytes from the underlying serial port.
+    # When a full packet has been received, it will
+    # be sent to the process_incoming methed, which
+    # will in turn pass it to the Transport instance.
+    def read_loop(self):
+        try:
+            in_frame = False
+            escape = False
+            data_buffer = b""
+            last_read_ms = int(time.time()*1000)
+
+            while self.serial.is_open:
+                if self.serial.in_waiting:
+                    byte = ord(self.serial.read(1))
+                    last_read_ms = int(time.time()*1000)
+
+                    if (in_frame and byte == HDLC.FLAG):
+                        in_frame = False
+                        self.process_incoming(data_buffer)
+                    elif (byte == HDLC.FLAG):
+                        in_frame = True
+                        data_buffer = b""
+                    elif (in_frame and len(data_buffer) < self.HW_MTU):
+                        if (byte == HDLC.ESC):
+                            escape = True
+                        else:
+                            if (escape):
+                                if (byte == HDLC.FLAG ^ HDLC.ESC_MASK):
+                                    byte = HDLC.FLAG
+                                if (byte == HDLC.ESC  ^ HDLC.ESC_MASK):
+                                    byte = HDLC.ESC
+                                escape = False
+                            data_buffer = data_buffer+bytes([byte])
+                        
+                else:
+                    time_since_last = int(time.time()*1000) - last_read_ms
+                    if len(data_buffer) > 0 and time_since_last > self.timeout:
+                        data_buffer = b""
+                        in_frame = False
+                        escape = False
+                    sleep(0.08)
+                    
+        except Exception as e:
+            self.online = False
+            RNS.log("A serial port error occurred, the contained exception was: "+str(e), RNS.LOG_ERROR)
+            RNS.log("The interface "+str(self)+" experienced an unrecoverable error and is now offline.", RNS.LOG_ERROR)
+            
+            if RNS.Reticulum.panic_on_interface_error:
+                RNS.panic()
+
+            RNS.log("Reticulum will attempt to reconnect the interface periodically.", RNS.LOG_ERROR)
+
+        self.online = False
+        self.serial.close()
+        self.reconnect_port()
+
+    # This method handles serial port disconnects.
+    def reconnect_port(self):
+        while not self.online:
+            try:
+                time.sleep(5)
+                RNS.log("Attempting to reconnect serial port "+str(self.port)+" for "+str(self)+"...", RNS.LOG_VERBOSE)
+                self.open_port()
+                if self.serial.is_open:
+                    self.configure_device()
+            except Exception as e:
+                RNS.log("Error while reconnecting port, the contained exception was: "+str(e), RNS.LOG_ERROR)
+
+        RNS.log("Reconnected serial port for "+str(self))
+
+    # Signal to Reticulum that this interface should
+    # not perform any ingress limiting.
+    def should_ingress_limit(self):
+        return False
+
+    # We must provide a string representation of this
+    # interface, that is used whenever the interface
+    # is printed in logs or external programs.
+    def __str__(self):
+        return "ExampleInterface["+self.name+"]"
+
+# Finally, register the defined interface class as the
+# target class for Reticulum to use as an interface
+interface_class = ExampleInterface

Examples/Filetransfer.py

@@ -224,7 +224,7 @@ def client(destination_hexhash, configpath):
         destination_hash = bytes.fromhex(destination_hexhash)
     except:
         RNS.log("Invalid destination entered. Check your input!\n")
-        exit()
+        sys.exit(0)
 
     # We must first initialise Reticulum
     reticulum = RNS.Reticulum(configpath)
@@ -462,7 +462,7 @@ def filelist_timeout_job():
     global server_files
     if len(server_files) == 0:
         RNS.log("Timed out waiting for filelist, exiting")
-        os._exit(0)
+        sys.exit(0)
 
 
 # When a link is closed, we'll inform the
@@ -475,9 +475,8 @@ def link_closed(link):
     else:
         RNS.log("Link closed, exiting now")
     
-    RNS.Reticulum.exit_handler()
     time.sleep(1.5)
-    os._exit(0)
+    sys.exit(0)
 
 # When RNS detects that the download has
 # started, we'll update our menu state
@@ -601,4 +600,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Identify.py

@@ -133,7 +133,7 @@ def client(destination_hexhash, configpath):
         destination_hash = bytes.fromhex(destination_hexhash)
     except:
         RNS.log("Invalid destination entered. Check your input!\n")
-        exit()
+        sys.exit(0)
 
     # We must first initialise Reticulum
     reticulum = RNS.Reticulum(configpath)
@@ -245,9 +245,8 @@ def link_closed(link):
     else:
         RNS.log("Link closed, exiting now")
     
-    RNS.Reticulum.exit_handler()
     time.sleep(1.5)
-    os._exit(0)
+    sys.exit(0)
 
 # When a packet is received over the link, we
 # simply print out the data.
@@ -311,4 +310,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Link.py

@@ -119,7 +119,7 @@ def client(destination_hexhash, configpath):
         destination_hash = bytes.fromhex(destination_hexhash)
     except:
         RNS.log("Invalid destination entered. Check your input!\n")
-        exit()
+        sys.exit(0)
 
     # We must first initialise Reticulum
     reticulum = RNS.Reticulum(configpath)
@@ -222,9 +222,8 @@ def link_closed(link):
     else:
         RNS.log("Link closed, exiting now")
     
-    RNS.Reticulum.exit_handler()
     time.sleep(1.5)
-    os._exit(0)
+    sys.exit(0)
 
 # When a packet is received over the link, we
 # simply print out the data.
@@ -288,4 +287,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Minimal.py

@@ -5,6 +5,7 @@
 ##########################################################
 
 import argparse
+import sys
 import RNS
 
 # Let's define an app name. We'll use this for all
@@ -98,4 +99,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Ratchets.py

@@ -0,0 +1,341 @@
+##########################################################
+# This RNS example demonstrates a simple client/server   #
+# echo utility that uses ratchets to rotate encryption   #
+# keys everytime an announce is sent.                    #
+##########################################################
+
+import argparse
+import sys
+import RNS
+
+# Let's define an app name. We'll use this for all
+# destinations we create. Since this echo example
+# is part of a range of example utilities, we'll put
+# them all within the app namespace "example_utilities"
+APP_NAME = "example_utilities"
+
+
+##########################################################
+#### Server Part #########################################
+##########################################################
+
+# This initialisation is executed when the users chooses
+# to run as a server
+def server(configpath):
+    global reticulum
+
+    # We must first initialise Reticulum
+    reticulum = RNS.Reticulum(configpath)
+    
+    # Randomly create a new identity for our echo server
+    server_identity = RNS.Identity()
+
+    # We create a destination that clients can query. We want
+    # to be able to verify echo replies to our clients, so we
+    # create a "single" destination that can receive encrypted
+    # messages. This way the client can send a request and be
+    # certain that no-one else than this destination was able
+    # to read it. 
+    echo_destination = RNS.Destination(
+        server_identity,
+        RNS.Destination.IN,
+        RNS.Destination.SINGLE,
+        APP_NAME,
+        "ratchet",
+        "echo",
+        "request"
+    )
+
+    # Enable ratchets on the destination by providing a file
+    # path to store ratchets. In this example, we will just
+    # use a temporary file, but in real-world applications,
+    # it's extremely important to keep this file secure, since
+    # it contains encryption keys for the destination.
+    destination_hexhash = RNS.hexrep(echo_destination.hash, delimit=False)
+    echo_destination.enable_ratchets(f"/tmp/{destination_hexhash}.ratchets")
+
+    # We configure the destination to automatically prove all
+    # packets addressed to it. By doing this, RNS will automatically
+    # generate a proof for each incoming packet and transmit it
+    # back to the sender of that packet.
+    echo_destination.set_proof_strategy(RNS.Destination.PROVE_ALL)
+    
+    # Tell the destination which function in our program to
+    # run when a packet is received. We do this so we can
+    # print a log message when the server receives a request
+    echo_destination.set_packet_callback(server_callback)
+
+    # Everything's ready!
+    # Let's Wait for client requests or user input
+    announceLoop(echo_destination)
+
+
+def announceLoop(destination):
+    # Let the user know that everything is ready
+    RNS.log(
+        "Ratcheted echo server "+
+        RNS.prettyhexrep(destination.hash)+
+        " running, hit enter to manually send an announce (Ctrl-C to quit)"
+    )
+
+    # We enter a loop that runs until the users exits.
+    # If the user hits enter, we will announce our server
+    # destination on the network, which will let clients
+    # know how to create messages directed towards it.
+    while True:
+        entered = input()
+        destination.announce()
+        RNS.log("Sent announce from "+RNS.prettyhexrep(destination.hash))
+
+
+def server_callback(message, packet):
+    global reticulum
+    
+    # Tell the user that we received an echo request, and
+    # that we are going to send a reply to the requester.
+    # Sending the proof is handled automatically, since we
+    # set up the destination to prove all incoming packets.
+
+    reception_stats = ""
+    if reticulum.is_connected_to_shared_instance:
+        reception_rssi = reticulum.get_packet_rssi(packet.packet_hash)
+        reception_snr  = reticulum.get_packet_snr(packet.packet_hash)
+
+        if reception_rssi != None:
+            reception_stats += " [RSSI "+str(reception_rssi)+" dBm]"
+        
+        if reception_snr != None:
+            reception_stats += " [SNR "+str(reception_snr)+" dBm]"
+
+    else:
+        if packet.rssi != None:
+            reception_stats += " [RSSI "+str(packet.rssi)+" dBm]"
+        
+        if packet.snr != None:
+            reception_stats += " [SNR "+str(packet.snr)+" dB]"
+
+    RNS.log("Received packet from echo client, proof sent"+reception_stats)
+
+
+##########################################################
+#### Client Part #########################################
+##########################################################
+
+# This initialisation is executed when the users chooses
+# to run as a client
+def client(destination_hexhash, configpath, timeout=None):
+    global reticulum
+    
+    # We need a binary representation of the destination
+    # hash that was entered on the command line
+    try:
+        dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
+        if len(destination_hexhash) != dest_len:
+            raise ValueError(
+                "Destination length is invalid, must be {hex} hexadecimal characters ({byte} bytes).".format(hex=dest_len, byte=dest_len//2)
+            )
+
+        destination_hash = bytes.fromhex(destination_hexhash)
+    except Exception as e:
+        RNS.log("Invalid destination entered. Check your input!")
+        RNS.log(str(e)+"\n")
+        sys.exit(0)
+
+    # We must first initialise Reticulum
+    reticulum = RNS.Reticulum(configpath)
+
+    # We override the loglevel to provide feedback when
+    # an announce is received
+    if RNS.loglevel < RNS.LOG_INFO:
+        RNS.loglevel = RNS.LOG_INFO
+
+    # Tell the user that the client is ready!
+    RNS.log(
+        "Echo client ready, hit enter to send echo request to "+
+        destination_hexhash+
+        " (Ctrl-C to quit)"
+    )
+
+    # We enter a loop that runs until the user exits.
+    # If the user hits enter, we will try to send an
+    # echo request to the destination specified on the
+    # command line.
+    while True:
+        input()
+        
+        # Let's first check if RNS knows a path to the destination.
+        # If it does, we'll load the server identity and create a packet
+        if RNS.Transport.has_path(destination_hash):
+
+            # To address the server, we need to know it's public
+            # key, so we check if Reticulum knows this destination.
+            # This is done by calling the "recall" method of the
+            # Identity module. If the destination is known, it will
+            # return an Identity instance that can be used in
+            # outgoing destinations.
+            server_identity = RNS.Identity.recall(destination_hash)
+
+            # We got the correct identity instance from the
+            # recall method, so let's create an outgoing
+            # destination. We use the naming convention:
+            # example_utilities.ratchet.echo.request
+            # This matches the naming we specified in the
+            # server part of the code.
+            request_destination = RNS.Destination(
+                server_identity,
+                RNS.Destination.OUT,
+                RNS.Destination.SINGLE,
+                APP_NAME,
+                "ratchet",
+                "echo",
+                "request"
+            )
+
+            # The destination is ready, so let's create a packet.
+            # We set the destination to the request_destination
+            # that was just created, and the only data we add
+            # is a random hash.
+            echo_request = RNS.Packet(request_destination, RNS.Identity.get_random_hash())
+
+            # Send the packet! If the packet is successfully
+            # sent, it will return a PacketReceipt instance.
+            packet_receipt = echo_request.send()
+
+            # If the user specified a timeout, we set this
+            # timeout on the packet receipt, and configure
+            # a callback function, that will get called if
+            # the packet times out.
+            if timeout != None:
+                packet_receipt.set_timeout(timeout)
+                packet_receipt.set_timeout_callback(packet_timed_out)
+
+            # We can then set a delivery callback on the receipt.
+            # This will get automatically called when a proof for
+            # this specific packet is received from the destination.
+            packet_receipt.set_delivery_callback(packet_delivered)
+
+            # Tell the user that the echo request was sent
+            RNS.log("Sent echo request to "+RNS.prettyhexrep(request_destination.hash))
+        else:
+            # If we do not know this destination, tell the
+            # user to wait for an announce to arrive.
+            RNS.log("Destination is not yet known. Requesting path...")
+            RNS.log("Hit enter to manually retry once an announce is received.")
+            RNS.Transport.request_path(destination_hash)
+
+# This function is called when our reply destination
+# receives a proof packet.
+def packet_delivered(receipt):
+    global reticulum
+
+    if receipt.status == RNS.PacketReceipt.DELIVERED:
+        rtt = receipt.get_rtt()
+        if (rtt >= 1):
+            rtt = round(rtt, 3)
+            rttstring = str(rtt)+" seconds"
+        else:
+            rtt = round(rtt*1000, 3)
+            rttstring = str(rtt)+" milliseconds"
+
+        reception_stats = ""
+        if reticulum.is_connected_to_shared_instance:
+            reception_rssi = reticulum.get_packet_rssi(receipt.proof_packet.packet_hash)
+            reception_snr  = reticulum.get_packet_snr(receipt.proof_packet.packet_hash)
+
+            if reception_rssi != None:
+                reception_stats += " [RSSI "+str(reception_rssi)+" dBm]"
+            
+            if reception_snr != None:
+                reception_stats += " [SNR "+str(reception_snr)+" dB]"
+
+        else:
+            if receipt.proof_packet != None:
+                if receipt.proof_packet.rssi != None:
+                    reception_stats += " [RSSI "+str(receipt.proof_packet.rssi)+" dBm]"
+                
+                if receipt.proof_packet.snr != None:
+                    reception_stats += " [SNR "+str(receipt.proof_packet.snr)+" dB]"
+
+        RNS.log(
+            "Valid reply received from "+
+            RNS.prettyhexrep(receipt.destination.hash)+
+            ", round-trip time is "+rttstring+
+            reception_stats
+        )
+
+# This function is called if a packet times out.
+def packet_timed_out(receipt):
+    if receipt.status == RNS.PacketReceipt.FAILED:
+        RNS.log("Packet "+RNS.prettyhexrep(receipt.hash)+" timed out")
+
+
+##########################################################
+#### Program Startup #####################################
+##########################################################
+
+# This part of the program gets run at startup,
+# and parses input from the user, and then starts
+# the desired program mode.
+if __name__ == "__main__":
+    try:
+        parser = argparse.ArgumentParser(description="Simple ratcheted echo server and client utility")
+
+        parser.add_argument(
+            "-s",
+            "--server",
+            action="store_true",
+            help="wait for incoming packets from clients"
+        )
+
+        parser.add_argument(
+            "-t",
+            "--timeout",
+            action="store",
+            metavar="s",
+            default=None,
+            help="set a reply timeout in seconds",
+            type=float
+        )
+
+        parser.add_argument("--config",
+            action="store",
+            default=None,
+            help="path to alternative Reticulum config directory",
+            type=str
+        )
+
+        parser.add_argument(
+            "destination",
+            nargs="?",
+            default=None,
+            help="hexadecimal hash of the server destination",
+            type=str
+        )
+
+        args = parser.parse_args()
+
+        if args.server:
+            configarg=None
+            if args.config:
+                configarg = args.config
+            server(configarg)
+        else:
+            if args.config:
+                configarg = args.config
+            else:
+                configarg = None
+
+            if args.timeout:
+                timeoutarg = float(args.timeout)
+            else:
+                timeoutarg = None
+
+            if (args.destination == None):
+                print("")
+                parser.print_help()
+                print("")
+            else:
+                client(args.destination, configarg, timeout=timeoutarg)
+    except KeyboardInterrupt:
+        print("")
+        sys.exit(0)

Examples/Request.py

@@ -1,6 +1,6 @@
 ##########################################################
-# This RNS example demonstrates how to set perform       #
-# requests and receive responses over a link.            #
+# This RNS example demonstrates how to perform requests  #
+# and receive responses over a link.                     #
 ##########################################################
 
 import os
@@ -119,7 +119,7 @@ def client(destination_hexhash, configpath):
         destination_hash = bytes.fromhex(destination_hexhash)
     except:
         RNS.log("Invalid destination entered. Check your input!\n")
-        exit()
+        sys.exit(0)
 
     # We must first initialise Reticulum
     reticulum = RNS.Reticulum(configpath)
@@ -226,9 +226,8 @@ def link_closed(link):
     else:
         RNS.log("Link closed, exiting now")
     
-    RNS.Reticulum.exit_handler()
     time.sleep(1.5)
-    os._exit(0)
+    sys.exit(0)
 
 
 ##########################################################
@@ -284,4 +283,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

Examples/Resource.py

@@ -0,0 +1,294 @@
+##########################################################
+# This RNS example demonstrates how to transfer a        #
+# resource over an established link                      #
+##########################################################
+
+import os
+import sys
+import time
+import random
+import argparse
+import RNS
+
+# Let's define an app name. We'll use this for all
+# destinations we create. Since this echo example
+# is part of a range of example utilities, we'll put
+# them all within the app namespace "example_utilities"
+APP_NAME = "example_utilities"
+
+##########################################################
+#### Server Part #########################################
+##########################################################
+
+# A reference to the latest client link that connected
+latest_client_link = None
+
+# This initialisation is executed when the users chooses
+# to run as a server
+def server(configpath):
+    # We must first initialise Reticulum
+    reticulum = RNS.Reticulum(configpath)
+    
+    # Randomly create a new identity for our link example
+    server_identity = RNS.Identity()
+
+    # We create a destination that clients can connect to. We
+    # want clients to create links to this destination, so we
+    # need to create a "single" destination type.
+    server_destination = RNS.Destination(
+        server_identity,
+        RNS.Destination.IN,
+        RNS.Destination.SINGLE,
+        APP_NAME,
+        "resourceexample"
+    )
+
+    # We configure a function that will get called every time
+    # a new client creates a link to this destination.
+    server_destination.set_link_established_callback(client_connected)
+
+    # Everything's ready!
+    # Let's Wait for client resources or user input
+    server_loop(server_destination)
+
+def server_loop(destination):
+    # Let the user know that everything is ready
+    RNS.log(
+        "Resource example "+
+        RNS.prettyhexrep(destination.hash)+
+        " running, waiting for a connection."
+    )
+
+    RNS.log("Hit enter to manually send an announce (Ctrl-C to quit)")
+
+    # We enter a loop that runs until the users exits.
+    # If the user hits enter, we will announce our server
+    # destination on the network, which will let clients
+    # know how to create messages directed towards it.
+    while True:
+        entered = input()
+        destination.announce()
+        RNS.log("Sent announce from "+RNS.prettyhexrep(destination.hash))
+
+# When a client establishes a link to our server
+# destination, this function will be called with
+# a reference to the link.
+def client_connected(link):
+    global latest_client_link
+    RNS.log("Client connected")
+
+    # We configure the link to accept all resources
+    # and set a callback for completed resources
+    link.set_resource_strategy(RNS.Link.ACCEPT_ALL)
+    link.set_resource_concluded_callback(resource_concluded)
+
+    link.set_link_closed_callback(client_disconnected)
+    latest_client_link = link
+
+def client_disconnected(link):
+    RNS.log("Client disconnected")
+
+def resource_concluded(resource):
+    if resource.status == RNS.Resource.COMPLETE:
+        RNS.log(f"Resource {resource} received")
+        RNS.log(f"Metadata: {resource.metadata}")
+        RNS.log(f"Data length: {os.stat(resource.data.name).st_size}")
+        RNS.log(f"Data can be read directly from: {resource.data}")
+        RNS.log(f"Data can be moved or copied from: {resource.data.name}")
+        RNS.log(f"First 32 bytes of data: {RNS.hexrep(resource.data.read(32))}")
+    else:
+        RNS.log(f"Receiving resource {resource} failed")
+
+
+
+##########################################################
+#### Client Part #########################################
+##########################################################
+
+# A reference to the server link
+server_link = None
+
+def random_text_generator():
+    texts = ["They looked up", "On each full moon", "Becky was upset", "I’ll stay away from it", "The pet shop stocks everything"]
+    return texts[random.randint(0, len(texts)-1)]
+
+# This initialisation is executed when the users chooses
+# to run as a client
+def client(destination_hexhash, configpath):
+    # We need a binary representation of the destination
+    # hash that was entered on the command line
+    try:
+        dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
+        if len(destination_hexhash) != dest_len:
+            raise ValueError(
+                "Destination length is invalid, must be {hex} hexadecimal characters ({byte} bytes).".format(hex=dest_len, byte=dest_len//2)
+            )
+            
+        destination_hash = bytes.fromhex(destination_hexhash)
+    except:
+        RNS.log("Invalid destination entered. Check your input!\n")
+        sys.exit(0)
+
+    # We must first initialise Reticulum
+    reticulum = RNS.Reticulum(configpath)
+
+    # Check if we know a path to the destination
+    if not RNS.Transport.has_path(destination_hash):
+        RNS.log("Destination is not yet known. Requesting path and waiting for announce to arrive...")
+        RNS.Transport.request_path(destination_hash)
+        while not RNS.Transport.has_path(destination_hash):
+            time.sleep(0.1)
+
+    # Recall the server identity
+    server_identity = RNS.Identity.recall(destination_hash)
+
+    # Inform the user that we'll begin connecting
+    RNS.log("Establishing link with server...")
+
+    # When the server identity is known, we set
+    # up a destination
+    server_destination = RNS.Destination(
+        server_identity,
+        RNS.Destination.OUT,
+        RNS.Destination.SINGLE,
+        APP_NAME,
+        "resourceexample"
+    )
+
+    # And create a link
+    link = RNS.Link(server_destination)
+
+    # We'll set up functions to inform the
+    # user when the link is established or closed
+    link.set_link_established_callback(link_established)
+    link.set_link_closed_callback(link_closed)
+
+    # Everything is set up, so let's enter a loop
+    # for the user to interact with the example
+    client_loop()
+
+def client_loop():
+    global server_link
+
+    # Wait for the link to become active
+    while not server_link:
+        time.sleep(0.1)
+
+    should_quit = False
+    while not should_quit:
+        try:
+            print("> ", end=" ")
+            text = input()
+
+            # Check if we should quit the example
+            if text == "quit" or text == "q" or text == "exit":
+                should_quit = True
+                server_link.teardown()
+
+            else:
+                # Generate 32 megabytes of random data
+                data     = os.urandom(32*1024*1024)
+                RNS.log(f"Data length: {len(data)}")
+                RNS.log(f"First 32 bytes of data: {RNS.hexrep(data[:32])}")
+                
+                # Generate some metadata
+                metadata = {"text": random_text_generator(), "numbers": [1,2,3,4], "blob": os.urandom(16)}
+                
+                # Send the resource
+                resource = RNS.Resource(data, server_link, metadata=metadata, callback=resource_concluded_sending, auto_compress=False)
+
+                # Alternatively, you can stream data
+                # directly from an open file descriptor
+
+                # with open("/path/to/file", "rb") as data_file:
+                #     resource = RNS.Resource(data_file, server_link, metadata=metadata, callback=resource_concluded_sending, auto_compress=False)
+
+        except Exception as e:
+            RNS.log("Error while sending resource over the link: "+str(e))
+            should_quit = True
+            server_link.teardown()
+
+def resource_concluded_sending(resource):
+    if resource.status == RNS.Resource.COMPLETE: RNS.log(f"The resource {resource} was sent successfully")
+    else: RNS.log(f"Sending the resource {resource} failed")
+
+# This function is called when a link
+# has been established with the server
+def link_established(link):
+    # We store a reference to the link
+    # instance for later use
+    global server_link
+    server_link = link
+
+    # Inform the user that the server is
+    # connected
+    RNS.log("Link established with server, hit enter to sand a resource, or type in \"quit\" to quit")
+
+# When a link is closed, we'll inform the
+# user, and exit the program
+def link_closed(link):
+    if link.teardown_reason == RNS.Link.TIMEOUT:
+        RNS.log("The link timed out, exiting now")
+    elif link.teardown_reason == RNS.Link.DESTINATION_CLOSED:
+        RNS.log("The link was closed by the server, exiting now")
+    else:
+        RNS.log("Link closed, exiting now")
+    
+    time.sleep(1.5)
+    sys.exit(0)
+
+
+##########################################################
+#### Program Startup #####################################
+##########################################################
+
+# This part of the program runs at startup,
+# and parses input of from the user, and then
+# starts up the desired program mode.
+if __name__ == "__main__":
+    try:
+        parser = argparse.ArgumentParser(description="Simple resource example")
+
+        parser.add_argument(
+            "-s",
+            "--server",
+            action="store_true",
+            help="wait for incoming resources from clients"
+        )
+
+        parser.add_argument(
+            "--config",
+            action="store",
+            default=None,
+            help="path to alternative Reticulum config directory",
+            type=str
+        )
+
+        parser.add_argument(
+            "destination",
+            nargs="?",
+            default=None,
+            help="hexadecimal hash of the server destination",
+            type=str
+        )
+
+        args = parser.parse_args()
+
+        if args.config:
+            configarg = args.config
+        else:
+            configarg = None
+
+        if args.server:
+            server(configarg)
+        else:
+            if (args.destination == None):
+                print("")
+                parser.print_help()
+                print("")
+            else:
+                client(args.destination, configarg)
+
+    except KeyboardInterrupt:
+        print("")
+        sys.exit(0)

Examples/Speedtest.py

@@ -149,8 +149,6 @@ def server_packet_received(message, packet):
         time.sleep(0.2)
         rc = 0
         received_data = 0
-        # latest_client_link.teardown()
-        # os._exit(0)
 
 
 ##########################################################
@@ -159,6 +157,7 @@ def server_packet_received(message, packet):
 
 # A reference to the server link
 server_link = None
+should_quit = False
 
 # This initialisation is executed when the users chooses
 # to run as a client
@@ -175,7 +174,7 @@ def client(destination_hexhash, configpath):
         destination_hash = bytes.fromhex(destination_hexhash)
     except:
         RNS.log("Invalid destination entered. Check your input!\n")
-        exit()
+        sys.exit(0)
 
     # We must first initialise Reticulum
     reticulum = RNS.Reticulum(configpath)
@@ -216,7 +215,7 @@ def client(destination_hexhash, configpath):
     client_loop()
 
 def client_loop():
-    global server_link
+    global server_link, should_quit
 
     # Wait for the link to become active
     while not server_link:
@@ -224,16 +223,7 @@ def client_loop():
 
     should_quit = False
     while not should_quit:
-        try:
-            text = input()
-
-            # Check if we should quit the example
-            if text == "quit" or text == "q" or text == "exit":
-                should_quit = True
-                server_link.teardown()
-
-        except Exception as e:
-            raise e
+        time.sleep(0.2)
 
 # This function is called when a link
 # has been established with the server
@@ -246,8 +236,8 @@ def link_established(link):
 
     # Inform the user that the server is
     # connected
-    RNS.log("Link established with server,sending...")
-    rd = os.urandom(RNS.Link.MDU)
+    RNS.log("Link established with server, sending...")
+    rd = os.urandom(link.mdu)
     started = time.time()
     while link.status == RNS.Link.ACTIVE and data_sent < data_cap*1.25:
         RNS.Packet(server_link, rd, create_receipt=False).send()
@@ -276,17 +266,17 @@ def link_established(link):
 # When a link is closed, we'll inform the
 # user, and exit the program
 def link_closed(link):
+    global should_quit
     if link.teardown_reason == RNS.Link.TIMEOUT:
         RNS.log("The link timed out, exiting now")
     elif link.teardown_reason == RNS.Link.DESTINATION_CLOSED:
         RNS.log("The link was closed by the server, exiting now")
     else:
         RNS.log("Link closed, exiting now")
-    
-    RNS.Reticulum.exit_handler()
 
+    should_quit = True
     time.sleep(1.5)
-    os._exit(0)
+    sys.exit(0)
 
 def client_packet_received(message, packet):
     pass
@@ -344,4 +334,4 @@ if __name__ == "__main__":
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        sys.exit(0)

LICENSE

@@ -1,6 +1,6 @@
-MIT License, unless otherwise noted
+Reticulum License
 
-Copyright (c) 2016-2023 Mark Qvist / unsigned.io
+Copyright (c) 2016-2025 Mark Qvist
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
+- The Software shall not be used in any kind of system which includes amongst
+  its functions the ability to purposefully do harm to human beings.
+
+- The Software shall not be used, directly or indirectly, in the creation of
+  an artificial intelligence, machine learning or language model training
+  dataset, including but not limited to any use that contributes to the
+  training or development of such a model or algorithm.
+
+- The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

Makefile

@@ -2,7 +2,7 @@ all: release
 
 test:
 	@echo Running tests...
-	python -m tests.all
+	python3 -m tests.all
 
 clean:
 	@echo Cleaning...
@@ -24,6 +24,12 @@ clean:
 	@make -C docs clean
 	@echo Done
 
+purge_docs:
+	@echo Purging documentation build...
+	@-rm -rf ./docs/manual
+	@-rm -rf ./docs/*.pdf
+	@-rm -rf ./docs/*.epub
+
 remove_symlinks:
 	@echo Removing symlinks for build...
 	-rm Examples/RNS
@@ -34,14 +40,14 @@ create_symlinks:
 	-ln -s ../RNS ./Examples/
 	-ln -s ../../RNS ./RNS/Utilities/
 
-build_sdist_only:
+build_sdist: purge_docs
 	python3 setup.py sdist
 
 build_wheel:
-	python3 setup.py sdist bdist_wheel
+	python3 setup.py bdist_wheel
 
 build_pure_wheel:
-	python3 setup.py sdist bdist_wheel --pure
+	python3 setup.py bdist_wheel --pure
 
 documentation:
 	make -C docs html
@@ -49,7 +55,7 @@ documentation:
 manual:
 	make -C docs latexpdf epub
 
-release: test remove_symlinks build_wheel build_pure_wheel documentation manual create_symlinks
+release: test remove_symlinks build_sdist build_wheel build_pure_wheel documentation manual create_symlinks
 
 debug: remove_symlinks build_wheel build_pure_wheel create_symlinks
 

README.md

@@ -1,4 +1,4 @@
-Reticulum Network Stack β <img align="right" src="https://static.pepy.tech/personalized-badge/rns?period=total&units=international_system&left_color=grey&right_color=blue&left_text=Installs"/>
+Reticulum Network Stack β <img align="right" src="https://static.pepy.tech/personalized-badge/rns?period=month&units=international_system&left_color=grey&right_color=blue&left_text=Installs/month" style="padding-left:10px"/><a href="https://github.com/markqvist/Reticulum/actions/workflows/build.yml"><img align="right" src="https://github.com/markqvist/Reticulum/actions/workflows/build.yml/badge.svg"/></a>
 ==========
 
 <p align="center"><img width="200" src="https://raw.githubusercontent.com/markqvist/Reticulum/master/docs/source/graphics/rns_logo_512.png"></p>
@@ -37,25 +37,36 @@ The full documentation for Reticulum is available at [markqvist.github.io/Reticu
 
 You can also download the [Reticulum manual as a PDF](https://github.com/markqvist/Reticulum/raw/master/docs/Reticulum%20Manual.pdf) or [as an e-book in EPUB format](https://github.com/markqvist/Reticulum/raw/master/docs/Reticulum%20Manual.epub).
 
-For more info, see [reticulum.network](https://reticulum.network/)
+For more info, see [reticulum.network](https://reticulum.network/) and [the FAQ section of the wiki](https://github.com/markqvist/Reticulum/wiki/Frequently-Asked-Questions).
 
 ## Notable Features
 - Coordination-less globally unique addressing and identification
-- Fully self-configuring multi-hop routing
+- Fully self-configuring multi-hop routing over heterogeneous carriers
+- Flexible scalability over heterogeneous topologies
+  - Reticulum can carry data over any mixture of physical mediums and topologies
+  - Low-bandwidth networks can co-exist and interoperate with large, high-bandwidth networks
 - Initiator anonymity, communicate without revealing your identity
+  - Reticulum does not include source addresses on any packets
 - Asymmetric X25519 encryption and Ed25519 signatures as a basis for all communication
-- Forward Secrecy with ephemeral Elliptic Curve Diffie-Hellman keys on Curve25519
+  - The foundational Reticulum Identity Keys are 512-bit Elliptic Curve keysets
+- Forward Secrecy is available for all communication types, both for single packets and over links
 - Reticulum uses the following format for encrypted tokens:
-  - Keys are ephemeral and derived from an ECDH key exchange on Curve25519
-  - AES-128 in CBC mode with PKCS7 padding
+  - Ephemeral per-packet and link keys and derived from an ECDH key exchange on Curve25519
+  - AES-256 in CBC mode with PKCS7 padding
   - HMAC using SHA256 for authentication
   - IVs are generated through os.urandom()
 - Unforgeable packet delivery confirmations
-- A variety of supported interface types
+- Flexible and extensible interface system
+  - Reticulum includes a large variety of built-in interface types
+  - Ability to load and utilise custom user- or community-supplied interface types
+  - Easily create your own custom interfaces for communicating over anything
+- Authentication and virtual network segmentation on all supported interface types
 - An intuitive and easy-to-use API
+  - Simpler and easier to use than sockets APIs, but more powerful
+  - Makes building distributed and decentralised applications much simpler
 - Reliable and efficient transfer of arbitrary amounts of data
   - Reticulum can handle a few bytes of data or files of many gigabytes
-  - Sequencing, transfer coordination and checksumming are automatic
+  - Sequencing, compression, transfer coordination and checksumming are automatic
   - The API is very easy to use, and provides transfer progress
 - Lightweight, flexible and expandable Request/Response mechanism
 - Efficient link establishment
@@ -74,9 +85,11 @@ If you want to quickly get an idea of what Reticulum can do, take a look at the
 following resources.
 
 - You can use the [rnsh](https://github.com/acehoss/rnsh) program to establish remote shell sessions over Reticulum.
-- For an off-grid, encrypted and resilient mesh communications platform, see [Nomad Network](https://github.com/markqvist/NomadNet)
-- The Android, Linux and macOS app [Sideband](https://github.com/markqvist/Sideband) has a graphical interface and focuses on ease of use.
 - [LXMF](https://github.com/markqvist/lxmf) is a distributed, delay and disruption tolerant message transfer protocol built on Reticulum
+- The [LXST](https://github.com/markqvist/lxst) protocol and framework provides real-time audio and signals transport over Reticulum. It includes primitives and utilities for building voice-based applications and hardware devices, such as the `rnphone` program, that can be used to build hardware telephones.
+- For an off-grid, encrypted and resilient mesh communications platform, see [Nomad Network](https://github.com/markqvist/NomadNet)
+- The Android, Linux, macOS and Windows app [Sideband](https://github.com/markqvist/Sideband) has a graphical interface and many advanced features, such as file transfers, image and voice messages, real-time voice calls, a distributed telemetry system, mapping capabilities and full plugin extensibility.
+- [MeshChat](https://github.com/liamcottle/reticulum-meshchat) is a user-friendly LXMF client with a web-based interface, that also supports image and voice messages, as well as file transfers. It also includes a built-in page browser for browsing Nomad Network nodes.
 
 ## Where can Reticulum be used?
 Over practically any medium that can support at least a half-duplex channel
@@ -169,11 +182,12 @@ program.
 
 Reticulum implements a range of generalised interface types that covers most of
 the communications hardware that Reticulum can run over. If your hardware is
-not supported, it's relatively simple to implement an interface class. I will
-gratefully accept pull requests for custom interfaces if they are generally
-useful.
+not supported, it's [simple to implement a custom interface module](https://markqvist.github.io/Reticulum/manual/interfaces.html#custom-interfaces).
 
-Currently, the following interfaces are supported:
+Pull requests for custom interfaces are gratefully accepted, provided they are
+generally useful and well-tested in real-world usage.
+
+Currently, the following built-in interfaces are supported:
 
 - Any Ethernet device
 - LoRa using [RNode](https://unsigned.io/rnode/)
@@ -233,10 +247,17 @@ Primitives](#cryptographic-primitives) section of this document.
 
 ## Public Testnet
 If you just want to get started experimenting without building any physical
-networks, you are welcome to join the Unsigned.io RNS Testnet. The testnet is
-just that, an informal network for testing and experimenting. It will be up
-most of the time, and anyone can join, but it also means that there's no
-guarantees for service availability.
+networks, you are welcome to join the RNS Development Testnet.
+
+The testnet is just that, an informal network for testing and experimenting.
+It will be up most of the time, and anyone can join, but it also means that
+there's no guarantees for service availability.
+
+It probably goes without saying, but *don't use the testnet entry-points as 
+hardcoded or default interfaces in any applications you ship to users*. When
+shipping applications, the best practice is to provide your own default
+connectivity solutions, if needed and applicable, or in most cases, simply
+leave it up to the user which networks to connect to, and how.
 
 The testnet runs the very latest version of Reticulum (often even a short while
 before it is publicly released). Sometimes experimental versions of Reticulum
@@ -257,7 +278,7 @@ file:
   [[RNS Testnet BetweenTheBorders]]
     type = TCPClientInterface
     enabled = yes
-    target_host = betweentheborders.com
+    target_host = reticulum.betweentheborders.com
     target_port = 4242
 
 # Interface to Testnet I2P Hub
@@ -276,56 +297,70 @@ You can help support the continued development of open, free and private communi
   ```
   84FpY1QbxHcgdseePYNmhTHcrgMX4nFfBYtz2GKYToqHVVhJp8Eaw1Z1EedRnKD19b3B8NiLCGVxzKV17UMmmeEsCrPyA5w
   ```
-- Ethereum
-  ```
-  0xFDabC71AC4c0C78C95aDDDe3B4FA19d6273c5E73
-  ```
 - Bitcoin
   ```
-  35G9uWVzrpJJibzUwpNUQGQNFzLirhrYAH
+  bc1p4a6axuvl7n9hpapfj8sv5reqj8kz6uxa67d5en70vzrttj0fmcusgxsfk5
+  ```
+- Ethereum
+  ```
+  0xae89F3B94fC4AD6563F0864a55F9a697a90261ff
   ```
 - Ko-Fi: https://ko-fi.com/markqvist
 
-Are certain features in the development roadmap are important to you or your
-organisation? Make them a reality quickly by sponsoring their implementation.
-
 ## Cryptographic Primitives
-Reticulum uses a simple suite of efficient, strong and modern cryptographic
+Reticulum uses a simple suite of efficient, strong and well-tested cryptographic
 primitives, with widely available implementations that can be used both on
-general-purpose CPUs and on microcontrollers. The necessary primitives are:
+general-purpose CPUs and on microcontrollers.
 
-- Ed25519 for signatures
-- X22519 for ECDH key exchanges
+One of the primary considerations for choosing this particular set of primitives is
+that they can be implemented *safely* with relatively few pitfalls, on practically
+all current computing platforms.
+
+The primitives listed here **are authoritative**. Anything claiming to be Reticulum,
+but not using these exact primitives **is not** Reticulum, and possibly an
+intentionally compromised or weakened clone. The utilised primitives are:
+
+- Reticulum Identity Keys are 512-bit Curve25519 keysets
+  - A 256-bit Ed25519 key for signatures
+  - A 256-bit X22519 key for ECDH key exchanges
 - HKDF for key derivation
-- Modified Fernet for encrypted tokens
-  - AES-128 in CBC mode
-  - HMAC for message authentication
-  - No Fernet version and timestamp fields
+- Encrypted tokens are based on the [Fernet spec](https://github.com/fernet/spec/)
+  - Ephemeral keys derived from an ECDH key exchange on Curve25519
+  - HMAC using SHA256 for message authentication
+  - IVs must be generated through `os.urandom()` or better
+  - AES-256 in CBC mode with PKCS7 padding
+  - No Fernet version and timestamp metadata fields
 - SHA-256
 - SHA-512
 
-In the default installation configuration, the `X25519`, `Ed25519` and
-`AES-128-CBC` primitives are provided by [OpenSSL](https://www.openssl.org/)
+In the default installation configuration, the `X25519`, `Ed25519`,
+and `AES-256-CBC` primitives are provided by [OpenSSL](https://www.openssl.org/)
 (via the [PyCA/cryptography](https://github.com/pyca/cryptography) package).
 The hashing functions `SHA-256` and `SHA-512` are provided by the standard
 Python [hashlib](https://docs.python.org/3/library/hashlib.html). The `HKDF`,
-`HMAC`, `Fernet` primitives, and the `PKCS7` padding function are always
+`HMAC`, `Token` primitives, and the `PKCS7` padding function are always
 provided by the following internal implementations:
 
 - [HKDF.py](RNS/Cryptography/HKDF.py)
 - [HMAC.py](RNS/Cryptography/HMAC.py)
-- [Fernet.py](RNS/Cryptography/Fernet.py)
+- [Token.py](RNS/Cryptography/Token.py)
 - [PKCS7.py](RNS/Cryptography/PKCS7.py)
 
 
 Reticulum also includes a complete implementation of all necessary primitives
-in pure Python. If OpenSSL & PyCA are not available on the system when
+in pure Python. If OpenSSL and PyCA are not available on the system when
 Reticulum is started, Reticulum will instead use the internal pure-python
 primitives. A trivial consequence of this is performance, with the OpenSSL
 backend being *much* faster. The most important consequence however, is the
 potential loss of security by using primitives that has not seen the same
 amount of scrutiny, testing and review as those from OpenSSL.
 
+Please note that by default, installing Reticulum will **require** OpenSSL and
+PyCA to also be automatically installed if not already available. It is only
+possible to use the pure-python primitives if this requirement is specifically
+overridden by the user, for example by installing the `rnspure` package instead
+of the normal `rns` package, or by running directly from local source-code.
+
 If you want to use the internal pure-python primitives, it is **highly
 advisable** that you have a good understanding of the risks that this pose, and
 make an informed decision on whether those risks are acceptable to you.
@@ -349,12 +384,12 @@ projects:
 - [PyCA/cryptography](https://github.com/pyca/cryptography), *BSD License*
 - [Pure-25519](https://github.com/warner/python-pure25519) by [Brian Warner](https://github.com/warner), *MIT License*
 - [Pysha2](https://github.com/thomdixon/pysha2) by [Thom Dixon](https://github.com/thomdixon), *MIT License*
-- [Python-AES](https://github.com/orgurar/python-aes) by [Or Gur Arie](https://github.com/orgurar), *MIT License*
+- [Python AES-128](https://github.com/orgurar/python-aes) by [Or Gur Arie](https://github.com/orgurar), *MIT License*
+- [Python AES-256](https://github.com/boppreh/aes) by [BoppreH](https://github.com/boppreh), *MIT License*
 - [Curve25519.py](https://gist.github.com/nickovs/cc3c22d15f239a2640c185035c06f8a3#file-curve25519-py) by [Nicko van Someren](https://gist.github.com/nickovs), *Public Domain*
 - [I2Plib](https://github.com/l-n-s/i2plib) by [Viktor Villainov](https://github.com/l-n-s)
 - [PySerial](https://github.com/pyserial/pyserial) by Chris Liechti, *BSD License*
 - [Configobj](https://github.com/DiffSK/configobj) by Michael Foord, Nicola Larosa, Rob Dennis & Eli Courtwright, *BSD License*
-- [Six](https://github.com/benjaminp/six) by [Benjamin Peterson](https://github.com/benjaminp), *MIT License*
-- [ifaddr](https://github.com/pydron/ifaddr) by [Pydron](https://github.com/pydron), *MIT License*
+- [ifaddr](https://github.com/pydron/ifaddr) by Stefan C. Mueller, *MIT License*
 - [Umsgpack.py](https://github.com/vsergeev/u-msgpack-python) by [Ivan A. Sergeev](https://github.com/vsergeev)
 - [Python](https://www.python.org)

RNS/Buffer.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors.
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -45,7 +53,8 @@ class StreamDataMessage(MessageBase):
     The stream id is limited to 2 bytes - 2 bit
     """
 
-    MAX_DATA_LEN = RNS.Link.MDU - 2 - 6  # 2 for stream data message header, 6 for channel envelope
+    OVERHEAD     = 2 + 6  # 2 for stream data message header, 6 for channel envelope
+    MAX_DATA_LEN = RNS.Link.MDU - OVERHEAD
     """
     When the Buffer package is imported, this value is
     calculcated based on the value of OVERHEAD
@@ -215,6 +224,7 @@ class RawChannelWriter(RawIOBase, AbstractContextManager):
         self._stream_id = stream_id
         self._channel = channel
         self._eof = False
+        self._mdu = channel.mdu - StreamDataMessage.OVERHEAD
 
     def write(self, __b: bytes) -> int | None:
         try:

RNS/Channel.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors.
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -602,7 +610,7 @@ class Channel(contextlib.AbstractContextManager):
         return envelope
 
     @property
-    def MDU(self):
+    def mdu(self):
         """
         Maximum Data Unit: the number of bytes available
         for a message to consume in a single send. This
@@ -611,7 +619,10 @@ class Channel(contextlib.AbstractContextManager):
 
         :return: number of bytes available
         """
-        return self._outlet.mdu - 6  # sizeof(msgtype) + sizeof(length) + sizeof(sequence)
+        mdu = self._outlet.mdu - 6  # sizeof(msgtype) + sizeof(length) + sizeof(sequence)
+        if mdu > 0xFFFF:
+            mdu = 0xFFFF
+        return mdu
 
 
 class LinkChannelOutlet(ChannelOutletBase):
@@ -639,7 +650,7 @@ class LinkChannelOutlet(ChannelOutletBase):
 
     @property
     def mdu(self):
-        return self.link.MDU
+        return self.link.mdu
 
     @property
     def rtt(self):

RNS/Cryptography/AES.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -24,23 +32,57 @@ import RNS.Cryptography.Provider as cp
 import RNS.vendor.platformutils as pu
 
 if cp.PROVIDER == cp.PROVIDER_INTERNAL:
-    from .aes import AES
+    from .aes import AES128
+    from .aes import AES256
     
 elif cp.PROVIDER == cp.PROVIDER_PYCA:
     from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
-
-    if pu.cryptography_old_api():
-        from cryptography.hazmat.backends import default_backend
+    if pu.cryptography_old_api(): from cryptography.hazmat.backends import default_backend
 
 
 class AES_128_CBC:
-
     @staticmethod
     def encrypt(plaintext, key, iv):
+        if len(key) != 16: raise ValueError(f"Invalid key length {len(key)*8} for {self}")
         if cp.PROVIDER == cp.PROVIDER_INTERNAL:
-            cipher = AES(key)
+            cipher = AES128(key)
             return cipher.encrypt(plaintext, iv)
 
+        elif cp.PROVIDER == cp.PROVIDER_PYCA:
+            if not pu.cryptography_old_api():
+                cipher = Cipher(algorithms.AES(key), modes.CBC(iv))
+            else:
+                cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend())
+
+            encryptor = cipher.encryptor()
+            ciphertext = encryptor.update(plaintext) + encryptor.finalize()
+            return ciphertext
+
+    @staticmethod
+    def decrypt(ciphertext, key, iv):
+        if len(key) != 16: raise ValueError(f"Invalid key length {len(key)*8} for {self}")
+        if cp.PROVIDER == cp.PROVIDER_INTERNAL:
+            cipher = AES128(key)
+            return cipher.decrypt(ciphertext, iv)
+
+        elif cp.PROVIDER == cp.PROVIDER_PYCA:
+            if not pu.cryptography_old_api():
+                cipher = Cipher(algorithms.AES(key), modes.CBC(iv))
+            else:
+                cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend())
+
+            decryptor = cipher.decryptor()
+            plaintext = decryptor.update(ciphertext) + decryptor.finalize()
+            return plaintext
+
+class AES_256_CBC:
+    @staticmethod
+    def encrypt(plaintext, key, iv):
+        if len(key) != 32: raise ValueError(f"Invalid key length {len(key)*8} for {self}")
+        if cp.PROVIDER == cp.PROVIDER_INTERNAL:
+            cipher = AES256(key)
+            return cipher.encrypt_cbc(plaintext, iv)
+
         elif cp.PROVIDER == cp.PROVIDER_PYCA:
             if not pu.cryptography_old_api():
                 cipher = Cipher(algorithms.AES(key), modes.CBC(iv))
@@ -53,9 +95,10 @@ class AES_128_CBC:
 
     @staticmethod
     def decrypt(ciphertext, key, iv):
+        if len(key) != 32: raise ValueError(f"Invalid key length {len(key)*8} for {self}")
         if cp.PROVIDER == cp.PROVIDER_INTERNAL:
-            cipher = AES(key)
-            return cipher.decrypt(ciphertext, iv)
+            cipher = AES256(key)
+            return cipher.decrypt_cbc(ciphertext, iv)
 
         elif cp.PROVIDER == cp.PROVIDER_PYCA:
             if not pu.cryptography_old_api():

RNS/Cryptography/Ed25519.py

@@ -1,3 +1,33 @@
+# Reticulum License
+#
+# Copyright (c) 2016-2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import os
 from .pure25519 import ed25519_oop as ed25519
 

RNS/Cryptography/Fernet.py

@@ -1,110 +0,0 @@
-# MIT License
-#
-# Copyright (c) 2022 Mark Qvist / unsigned.io
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
-import os
-import time
-
-from RNS.Cryptography import HMAC
-from RNS.Cryptography import PKCS7
-from RNS.Cryptography.AES import AES_128_CBC
-
-class Fernet():
-    """
-    This class provides a slightly modified implementation of the Fernet spec
-    found at: https://github.com/fernet/spec/blob/master/Spec.md
-
-    According to the spec, a Fernet token includes a one byte VERSION and
-    eight byte TIMESTAMP field at the start of each token. These fields are
-    not relevant to Reticulum. They are therefore stripped from this
-    implementation, since they incur overhead and leak initiator metadata.
-    """
-    FERNET_OVERHEAD  = 48 # Bytes
-
-    @staticmethod
-    def generate_key():
-        return os.urandom(32)
-
-    def __init__(self, key = None):
-        if key == None:
-            raise ValueError("Token key cannot be None")
-
-        if len(key) != 32:
-            raise ValueError("Token key must be 32 bytes, not "+str(len(key)))
-            
-        self._signing_key = key[:16]
-        self._encryption_key = key[16:]
-
-
-    def verify_hmac(self, token):
-        if len(token) <= 32:
-            raise ValueError("Cannot verify HMAC on token of only "+str(len(token))+" bytes")
-        else:
-            received_hmac = token[-32:]
-            expected_hmac = HMAC.new(self._signing_key, token[:-32]).digest()
-
-            if received_hmac == expected_hmac:
-                return True
-            else:
-                return False
-
-
-    def encrypt(self, data = None):
-        iv = os.urandom(16)
-        current_time = int(time.time())
-
-        if not isinstance(data, bytes):
-            raise TypeError("Token plaintext input must be bytes")
-
-        ciphertext = AES_128_CBC.encrypt(
-            plaintext = PKCS7.pad(data),
-            key = self._encryption_key,
-            iv = iv,
-        )
-
-        signed_parts = iv+ciphertext
-
-        return signed_parts + HMAC.new(self._signing_key, signed_parts).digest()
-
-
-    def decrypt(self, token = None):
-        if not isinstance(token, bytes):
-            raise TypeError("Token must be bytes")
-
-        if not self.verify_hmac(token):
-            raise ValueError("Token HMAC was invalid")
-
-        iv = token[:16]
-        ciphertext = token[16:-32]
-
-        try:
-            plaintext = PKCS7.unpad(
-                AES_128_CBC.decrypt(
-                    ciphertext,
-                    self._encryption_key,
-                    iv,
-                )
-            )
-
-            return plaintext
-
-        except Exception as e:
-            raise ValueError("Could not decrypt token")

RNS/Cryptography/HKDF.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -48,7 +56,7 @@ def hkdf(length=None, derive_from=None, salt=None, context=None):
     derived = b""
 
     for i in range(ceil(length / hash_len)):
-        block = hmac_sha256(pseudorandom_key, block + context + bytes([i + 1]))
+        block = hmac_sha256(pseudorandom_key, block + context + bytes([(i + 1)%(0xFF+1)]))
         derived += block
 
     return derived[:length]

RNS/Cryptography/Hashes.py

@@ -1,4 +1,34 @@
-import importlib
+# Reticulum License
+#
+# Copyright (c) 2016-2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import importlib.util
 if importlib.util.find_spec('hashlib') != None:
     import hashlib
 else:

RNS/Cryptography/PKCS7.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

RNS/Cryptography/Provider.py

@@ -1,16 +1,47 @@
-import importlib
+# Reticulum License
+#
+# Copyright (c) 2016-2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import importlib.util
 
 PROVIDER_NONE     = 0x00
 PROVIDER_INTERNAL = 0x01
 PROVIDER_PYCA     = 0x02
 
+FORCE_INTERNAL = False
 PROVIDER = PROVIDER_NONE
 
 pyca_v = None
 use_pyca = False
 
 try:
-    if importlib.util.find_spec('cryptography') != None:
+    if not FORCE_INTERNAL and importlib.util.find_spec('cryptography') != None:
         import cryptography
         pyca_v = cryptography.__version__
         v = pyca_v.split(".")

RNS/Cryptography/Proxies.py

@@ -1,3 +1,33 @@
+# Reticulum License
+#
+# Copyright (c) 2016-2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 from cryptography.hazmat.primitives import serialization
 from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey, Ed25519PublicKey
 from cryptography.hazmat.primitives.asymmetric.x25519 import X25519PrivateKey, X25519PublicKey

RNS/Cryptography/Token.py

@@ -0,0 +1,114 @@
+# Reticulum License
+#
+# Copyright (c) 2016-2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import os
+import time
+
+from RNS.Cryptography import HMAC
+from RNS.Cryptography import PKCS7
+from RNS.Cryptography import AES
+from RNS.Cryptography.AES import AES_128_CBC
+from RNS.Cryptography.AES import AES_256_CBC
+
+class Token():
+    """
+    This class provides a slightly modified implementation of the Fernet spec
+    found at: https://github.com/fernet/spec/blob/master/Spec.md
+
+    According to the spec, a Fernet token includes a one byte VERSION and
+    eight byte TIMESTAMP field at the start of each token. These fields are
+    not relevant to Reticulum. They are therefore stripped from this
+    implementation, since they incur overhead and leak initiator metadata.
+    """
+    TOKEN_OVERHEAD  = 48 # Bytes
+
+    @staticmethod
+    def generate_key(mode=AES_256_CBC):
+        if   mode == AES_128_CBC: return os.urandom(32)
+        elif mode == AES_256_CBC: return os.urandom(64)
+        else: raise TypeError(f"Invalid token mode: {mode}")
+
+    def __init__(self, key=None, mode=AES):
+        if key == None: raise ValueError("Token key cannot be None")
+
+        if mode == AES:
+            if len(key) == 32:
+                self.mode = AES_128_CBC
+                self._signing_key = key[:16]
+                self._encryption_key = key[16:]
+
+            elif len(key) == 64:
+                self.mode = AES_256_CBC
+                self._signing_key = key[:32]
+                self._encryption_key = key[32:]
+
+            else: raise ValueError("Token key must be 128 or 256 bits, not "+str(len(key)*8))
+
+        else: raise TypeError(f"Invalid token mode: {mode}")
+
+
+    def verify_hmac(self, token):
+        if len(token) <= 32: raise ValueError("Cannot verify HMAC on token of only "+str(len(token))+" bytes")
+        else:
+            received_hmac = token[-32:]
+            expected_hmac = HMAC.new(self._signing_key, token[:-32]).digest()
+
+            if received_hmac == expected_hmac: return True
+            else: return False
+
+
+    def encrypt(self, data = None):
+        if not isinstance(data, bytes): raise TypeError("Token plaintext input must be bytes")
+        iv = os.urandom(16)
+
+        ciphertext = self.mode.encrypt(
+            plaintext = PKCS7.pad(data),
+            key = self._encryption_key,
+            iv = iv)
+
+        signed_parts = iv+ciphertext
+        return signed_parts + HMAC.new(self._signing_key, signed_parts).digest()
+
+
+    def decrypt(self, token = None):
+        if not isinstance(token, bytes): raise TypeError("Token must be bytes")
+        if not self.verify_hmac(token): raise ValueError("Token HMAC was invalid")
+
+        iv = token[:16]
+        ciphertext = token[16:-32]
+
+        try:
+            return PKCS7.unpad(
+                self.mode.decrypt(
+                    ciphertext = ciphertext,
+                    key = self._encryption_key,
+                    iv = iv))
+
+        except Exception as e: raise ValueError(f"Could not decrypt token: {e}")

RNS/Cryptography/X25519.py

@@ -82,10 +82,13 @@ def _fix_secret(n):
     n |= 64 << 8 * 31
     return n
 
+def _fix_base_point(n):
+    n &= ~(2**255)
+    return n
 
 def curve25519(base_point_raw, secret_raw):
     """Raise the base point to a given power"""
-    base_point = _unpack_number(base_point_raw)
+    base_point = _fix_base_point(_unpack_number(base_point_raw))
     secret = _fix_secret(_unpack_number(secret_raw))
     return _pack_number(_raw_curve25519(base_point, secret))
 

RNS/Cryptography/__init__.py

@@ -1,3 +1,33 @@
+# Reticulum License
+#
+# Copyright (c) 2016-2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import os
 import glob
 
@@ -5,7 +35,7 @@ from .Hashes import sha256
 from .Hashes import sha512
 from .HKDF import hkdf
 from .PKCS7 import PKCS7
-from .Fernet import Fernet
+from .Token import Token
 from .Provider import backend
 
 import RNS.Cryptography.Provider as cp
@@ -20,5 +50,7 @@ elif cp.PROVIDER == cp.PROVIDER_PYCA:
     from RNS.Cryptography.Proxies import Ed25519PrivateKeyProxy as Ed25519PrivateKey
     from RNS.Cryptography.Proxies import Ed25519PublicKeyProxy as Ed25519PublicKey
 
-modules = glob.glob(os.path.dirname(__file__)+"/*.py")
-__all__ = [ os.path.basename(f)[:-3] for f in modules if not f.endswith('__init__.py')]
+py_modules  = glob.glob(os.path.dirname(__file__)+"/*.py")
+pyc_modules = glob.glob(os.path.dirname(__file__)+"/*.pyc")
+modules     = py_modules+pyc_modules
+__all__ = list(set([os.path.basename(f).replace(".pyc", "").replace(".py", "") for f in modules if not (f.endswith("__init__.py") or f.endswith("__init__.pyc"))]))

RNS/Cryptography/aes/__init__.py

@@ -1 +1,2 @@
-from .aes import AES
+from .aes128 import AES128
+from .aes256 import AES256

RNS/Cryptography/aes/aes.py

@@ -1,271 +0,0 @@
-# MIT License
-
-# Copyright (c) 2021 Or Gur Arie
-
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
-
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
-from .utils import *
-
-
-class AES:
-    # AES-128 block size
-    block_size = 16
-    # AES-128 encrypts messages with 10 rounds
-    _rounds = 10
-
-
-    # initiate the AES objecy
-    def __init__(self, key):
-        """
-        Initializes the object with a given key.
-        """
-        # make sure key length is right
-        assert len(key) == AES.block_size
-
-        # ExpandKey
-        self._round_keys = self._expand_key(key)
-
-
-    # will perform the AES ExpandKey phase
-    def _expand_key(self, master_key):
-        """
-        Expands and returns a list of key matrices for the given master_key.
-        """
-
-        # Initialize round keys with raw key material.
-        key_columns = bytes2matrix(master_key)
-        iteration_size = len(master_key) // 4
-
-        # Each iteration has exactly as many columns as the key material.
-        i = 1
-        while len(key_columns) < (self._rounds + 1) * 4:
-            # Copy previous word.
-            word = list(key_columns[-1])
-
-            # Perform schedule_core once every "row".
-            if len(key_columns) % iteration_size == 0:
-                # Circular shift.
-                word.append(word.pop(0))
-                # Map to S-BOX.
-                word = [s_box[b] for b in word]
-                # XOR with first byte of R-CON, since the others bytes of R-CON are 0.
-                word[0] ^= r_con[i]
-                i += 1
-            elif len(master_key) == 32 and len(key_columns) % iteration_size == 4:
-                # Run word through S-box in the fourth iteration when using a
-                # 256-bit key.
-                word = [s_box[b] for b in word]
-
-            # XOR with equivalent word from previous iteration.
-            word = bytes(i^j for i, j in zip(word, key_columns[-iteration_size]))
-            key_columns.append(word)
-
-        # Group key words in 4x4 byte matrices.
-        return [key_columns[4*i : 4*(i+1)] for i in range(len(key_columns) // 4)]
-
-
-    # encrypt a single block of data with AES
-    def _encrypt_block(self, plaintext):
-        """
-        Encrypts a single block of 16 byte long plaintext.
-        """
-        # length of a single block
-        assert len(plaintext) == AES.block_size
-
-        # perform on a matrix
-        state = bytes2matrix(plaintext)
-
-        # AddRoundKey
-        add_round_key(state, self._round_keys[0])
-
-        # 9 main rounds
-        for i in range(1, self._rounds):
-            # SubBytes
-            sub_bytes(state)
-            # ShiftRows
-            shift_rows(state)
-            # MixCols
-            mix_columns(state)
-            # AddRoundKey
-            add_round_key(state, self._round_keys[i])
-
-        # last round, w/t AddRoundKey step
-        sub_bytes(state)
-        shift_rows(state)
-        add_round_key(state, self._round_keys[-1])
-
-        # return the encrypted matrix as bytes
-        return matrix2bytes(state)
-
-
-    # decrypt a single block of data with AES
-    def _decrypt_block(self, ciphertext):
-        """
-        Decrypts a single block of 16 byte long ciphertext.
-        """
-        # length of a single block
-        assert len(ciphertext) == AES.block_size
-
-        # perform on a matrix
-        state = bytes2matrix(ciphertext)
-
-        # in reverse order, last round is first
-        add_round_key(state, self._round_keys[-1])
-        inv_shift_rows(state)
-        inv_sub_bytes(state)
-
-        for i in range(self._rounds - 1, 0, -1):
-            # nain rounds
-            add_round_key(state, self._round_keys[i])
-            inv_mix_columns(state)
-            inv_shift_rows(state)
-            inv_sub_bytes(state)
-
-        # initial AddRoundKey phase
-        add_round_key(state, self._round_keys[0])
-
-        # return bytes
-        return matrix2bytes(state)
-
-
-    # will encrypt the entire data 
-    def encrypt(self, plaintext, iv):
-        """
-        Encrypts `plaintext` using CBC mode and PKCS#7 padding, with the given
-        initialization vector (iv).
-        """
-        # iv length must be same as block size
-        assert len(iv) == AES.block_size
-
-        assert len(plaintext) % AES.block_size == 0
-
-        ciphertext_blocks = []
-
-        previous = iv
-        for plaintext_block in split_blocks(plaintext):
-            # in CBC mode every block is XOR'd with the previous block
-            xorred = xor_bytes(plaintext_block, previous)
-
-            # encrypt current block
-            block = self._encrypt_block(xorred)
-            previous = block
-
-            # append to ciphertext
-            ciphertext_blocks.append(block)
-
-        # return as bytes
-        return b''.join(ciphertext_blocks)
-
-
-    # will decrypt the entire data 
-    def decrypt(self, ciphertext, iv):
-        """
-        Decrypts `ciphertext` using CBC mode and PKCS#7 padding, with the given
-        initialization vector (iv).
-        """
-        # iv length must be same as block size
-        assert len(iv) == AES.block_size
-
-        plaintext_blocks = []
-
-        previous = iv
-        for ciphertext_block in split_blocks(ciphertext):
-            # in CBC mode every block is XOR'd with the previous block
-            xorred = xor_bytes(previous, self._decrypt_block(ciphertext_block))
-            
-            # append plaintext
-            plaintext_blocks.append(xorred)
-            previous = ciphertext_block
-
-        return b''.join(plaintext_blocks)
-
-
-def test():
-    # modules and classes requiered for test only
-    import os
-    class bcolors:
-        OK = '\033[92m' #GREEN
-        WARNING = '\033[93m' #YELLOW
-        FAIL = '\033[91m' #RED
-        RESET = '\033[0m' #RESET COLOR
-
-    # will test AES class by performing an encryption / decryption
-    print("AES Tests")
-    print("=========")
-
-    # generate a secret key and print details
-    key = os.urandom(AES.block_size)
-    _aes = AES(key)
-    print(f"Algorithm: AES-CBC-{AES.block_size*8}")
-    print(f"Secret Key: {key.hex()}")
-    print()
-
-    # test single block encryption / decryption
-    iv = os.urandom(AES.block_size)
-
-    single_block_text = b"SingleBlock Text"
-    print("Single Block Tests")
-    print("------------------")
-    print(f"iv: {iv.hex()}")
-    
-    print(f"plain text: '{single_block_text.decode()}'")
-    ciphertext_block = _aes._encrypt_block(single_block_text)
-    plaintext_block = _aes._decrypt_block(ciphertext_block)
-    print(f"Ciphertext Hex: {ciphertext_block.hex()}")
-    print(f"Plaintext: {plaintext_block.decode()}")
-    assert plaintext_block == single_block_text
-    print(bcolors.OK + "Single Block Test Passed Successfully" + bcolors.RESET)
-    print()
-
-    # test a less than a block length phrase
-    iv = os.urandom(AES.block_size)
-
-    short_text = b"Just Text"
-    print("Short Text Tests")
-    print("----------------")
-    print(f"iv: {iv.hex()}")
-    print(f"plain text: '{short_text.decode()}'")
-    ciphertext_short = _aes.encrypt(short_text, iv)
-    plaintext_short = _aes.decrypt(ciphertext_short, iv)
-    print(f"Ciphertext Hex: {ciphertext_short.hex()}")
-    print(f"Plaintext: {plaintext_short.decode()}")
-    assert short_text == plaintext_short
-    print(bcolors.OK + "Short Text Test Passed Successfully" + bcolors.RESET)
-    print()
-
-    # test an arbitrary length phrase
-    iv = os.urandom(AES.block_size)
-
-    text = b"This Text is longer than one block"
-    print("Arbitrary Length Tests")
-    print("----------------------")
-    print(f"iv: {iv.hex()}")
-    print(f"plain text: '{text.decode()}'")
-    ciphertext = _aes.encrypt(text, iv)
-    plaintext = _aes.decrypt(ciphertext, iv)
-    print(f"Ciphertext Hex: {ciphertext.hex()}")
-    print(f"Plaintext: {plaintext.decode()}")
-    assert text == plaintext
-    print(bcolors.OK + "Arbitrary Length Text Test Passed Successfully" + bcolors.RESET)
-    print()
-
-
-if __name__ == "__main__":
-    # test AES class
-    test()    

RNS/Cryptography/aes/aes128.py

@@ -0,0 +1,326 @@
+# MIT License
+
+# Copyright (c) 2021 Or Gur Arie
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+## AES lookup tables
+# resource: https://en.wikipedia.org/wiki/Rijndael_S-box
+s_box = (
+    0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
+    0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
+    0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,
+    0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,
+    0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,
+    0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,
+    0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,
+    0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,
+    0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,
+    0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,
+    0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,
+    0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,
+    0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,
+    0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
+    0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
+    0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16,
+)
+
+inv_s_box = (
+    0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
+    0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,
+    0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,
+    0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,
+    0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,
+    0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,
+    0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,
+    0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,
+    0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,
+    0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,
+    0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,
+    0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,
+    0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,
+    0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,
+    0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,
+    0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D,
+)
+
+
+## AES AddRoundKey
+# Round constants https://en.wikipedia.org/wiki/AES_key_schedule#Round_constants
+r_con = (
+    0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40,
+    0x80, 0x1B, 0x36, 0x6C, 0xD8, 0xAB, 0x4D, 0x9A,
+    0x2F, 0x5E, 0xBC, 0x63, 0xC6, 0x97, 0x35, 0x6A,
+    0xD4, 0xB3, 0x7D, 0xFA, 0xEF, 0xC5, 0x91, 0x39,
+)
+
+def add_round_key(s, k):
+    for i in range(4):
+        for j in range(4):
+            s[i][j] ^= k[i][j]
+
+
+## AES SubBytes
+def sub_bytes(s):
+    for i in range(4):
+        for j in range(4):
+            s[i][j] = s_box[s[i][j]]
+
+
+def inv_sub_bytes(s):
+    for i in range(4):
+        for j in range(4):
+            s[i][j] = inv_s_box[s[i][j]]
+
+
+## AES ShiftRows
+def shift_rows(s):
+    s[0][1], s[1][1], s[2][1], s[3][1] = s[1][1], s[2][1], s[3][1], s[0][1]
+    s[0][2], s[1][2], s[2][2], s[3][2] = s[2][2], s[3][2], s[0][2], s[1][2]
+    s[0][3], s[1][3], s[2][3], s[3][3] = s[3][3], s[0][3], s[1][3], s[2][3]
+
+
+def inv_shift_rows(s):
+    s[0][1], s[1][1], s[2][1], s[3][1] = s[3][1], s[0][1], s[1][1], s[2][1]
+    s[0][2], s[1][2], s[2][2], s[3][2] = s[2][2], s[3][2], s[0][2], s[1][2]
+    s[0][3], s[1][3], s[2][3], s[3][3] = s[1][3], s[2][3], s[3][3], s[0][3]
+
+
+## AES MixColumns
+# learned from http://cs.ucsb.edu/~koc/cs178/projects/JT/aes.c
+xtime = lambda a: (((a << 1) ^ 0x1B) & 0xFF) if (a & 0x80) else (a << 1)
+
+
+def mix_single_column(a):
+    # see Sec 4.1.2 in The Design of Rijndael
+    t = a[0] ^ a[1] ^ a[2] ^ a[3]
+    u = a[0]
+    a[0] ^= t ^ xtime(a[0] ^ a[1])
+    a[1] ^= t ^ xtime(a[1] ^ a[2])
+    a[2] ^= t ^ xtime(a[2] ^ a[3])
+    a[3] ^= t ^ xtime(a[3] ^ u)
+
+
+def mix_columns(s):
+    for i in range(4):
+        mix_single_column(s[i])
+
+
+def inv_mix_columns(s):
+    # see Sec 4.1.3 in The Design of Rijndael
+    for i in range(4):
+        u = xtime(xtime(s[i][0] ^ s[i][2]))
+        v = xtime(xtime(s[i][1] ^ s[i][3]))
+        s[i][0] ^= u
+        s[i][1] ^= v
+        s[i][2] ^= u
+        s[i][3] ^= v
+
+    mix_columns(s)
+
+## AES Bytes
+def bytes2matrix(text):
+    """ Converts a 16-byte array into a 4x4 matrix.  """
+    return [list(text[i:i+4]) for i in range(0, len(text), 4)]
+
+def matrix2bytes(matrix):
+    """ Converts a 4x4 matrix into a 16-byte array.  """
+    return bytes(sum(matrix, []))
+
+
+def xor_bytes(a, b):
+    """ Returns a new byte array with the elements xor'ed. """
+    return bytes(i^j for i, j in zip(a, b))
+
+
+def split_blocks(message, block_size=16, require_padding=True):
+        assert len(message) % block_size == 0 or not require_padding
+        return [message[i:i+16] for i in range(0, len(message), block_size)]
+
+class AES128:
+    # AES-128 block size
+    block_size = 16
+    # AES-128 encrypts messages with 10 rounds
+    _rounds = 10
+
+
+    # initiate the AES objecy
+    def __init__(self, key):
+        """
+        Initializes the object with a given key.
+        """
+        # make sure key length is right
+        assert len(key) == AES128.block_size
+
+        # ExpandKey
+        self._round_keys = self._expand_key(key)
+
+
+    # will perform the AES ExpandKey phase
+    def _expand_key(self, master_key):
+        """
+        Expands and returns a list of key matrices for the given master_key.
+        """
+
+        # Initialize round keys with raw key material.
+        key_columns = bytes2matrix(master_key)
+        iteration_size = len(master_key) // 4
+
+        # Each iteration has exactly as many columns as the key material.
+        i = 1
+        while len(key_columns) < (self._rounds + 1) * 4:
+            # Copy previous word.
+            word = list(key_columns[-1])
+
+            # Perform schedule_core once every "row".
+            if len(key_columns) % iteration_size == 0:
+                # Circular shift.
+                word.append(word.pop(0))
+                # Map to S-BOX.
+                word = [s_box[b] for b in word]
+                # XOR with first byte of R-CON, since the others bytes of R-CON are 0.
+                word[0] ^= r_con[i]
+                i += 1
+            elif len(master_key) == 32 and len(key_columns) % iteration_size == 4:
+                # Run word through S-box in the fourth iteration when using a
+                # 256-bit key.
+                word = [s_box[b] for b in word]
+
+            # XOR with equivalent word from previous iteration.
+            word = bytes(i^j for i, j in zip(word, key_columns[-iteration_size]))
+            key_columns.append(word)
+
+        # Group key words in 4x4 byte matrices.
+        return [key_columns[4*i : 4*(i+1)] for i in range(len(key_columns) // 4)]
+
+
+    # encrypt a single block of data with AES
+    def _encrypt_block(self, plaintext):
+        """
+        Encrypts a single block of 16 byte long plaintext.
+        """
+        # length of a single block
+        assert len(plaintext) == AES128.block_size
+
+        # perform on a matrix
+        state = bytes2matrix(plaintext)
+
+        # AddRoundKey
+        add_round_key(state, self._round_keys[0])
+
+        # 9 main rounds
+        for i in range(1, self._rounds):
+            # SubBytes
+            sub_bytes(state)
+            # ShiftRows
+            shift_rows(state)
+            # MixCols
+            mix_columns(state)
+            # AddRoundKey
+            add_round_key(state, self._round_keys[i])
+
+        # last round, w/t AddRoundKey step
+        sub_bytes(state)
+        shift_rows(state)
+        add_round_key(state, self._round_keys[-1])
+
+        # return the encrypted matrix as bytes
+        return matrix2bytes(state)
+
+
+    # decrypt a single block of data with AES
+    def _decrypt_block(self, ciphertext):
+        """
+        Decrypts a single block of 16 byte long ciphertext.
+        """
+        # length of a single block
+        assert len(ciphertext) == AES128.block_size
+
+        # perform on a matrix
+        state = bytes2matrix(ciphertext)
+
+        # in reverse order, last round is first
+        add_round_key(state, self._round_keys[-1])
+        inv_shift_rows(state)
+        inv_sub_bytes(state)
+
+        for i in range(self._rounds - 1, 0, -1):
+            # nain rounds
+            add_round_key(state, self._round_keys[i])
+            inv_mix_columns(state)
+            inv_shift_rows(state)
+            inv_sub_bytes(state)
+
+        # initial AddRoundKey phase
+        add_round_key(state, self._round_keys[0])
+
+        # return bytes
+        return matrix2bytes(state)
+
+
+    # will encrypt the entire data 
+    def encrypt(self, plaintext, iv):
+        """
+        Encrypts `plaintext` using CBC mode and PKCS#7 padding, with the given
+        initialization vector (iv).
+        """
+        # iv length must be same as block size
+        assert len(iv) == AES128.block_size
+
+        assert len(plaintext) % AES128.block_size == 0
+
+        ciphertext_blocks = []
+
+        previous = iv
+        for plaintext_block in split_blocks(plaintext):
+            # in CBC mode every block is XOR'd with the previous block
+            xorred = xor_bytes(plaintext_block, previous)
+
+            # encrypt current block
+            block = self._encrypt_block(xorred)
+            previous = block
+
+            # append to ciphertext
+            ciphertext_blocks.append(block)
+
+        # return as bytes
+        return b''.join(ciphertext_blocks)
+
+
+    # will decrypt the entire data 
+    def decrypt(self, ciphertext, iv):
+        """
+        Decrypts `ciphertext` using CBC mode and PKCS#7 padding, with the given
+        initialization vector (iv).
+        """
+        # iv length must be same as block size
+        assert len(iv) == AES128.block_size
+
+        plaintext_blocks = []
+
+        previous = iv
+        for ciphertext_block in split_blocks(ciphertext):
+            # in CBC mode every block is XOR'd with the previous block
+            xorred = xor_bytes(previous, self._decrypt_block(ciphertext_block))
+            
+            # append plaintext
+            plaintext_blocks.append(xorred)
+            previous = ciphertext_block
+
+        return b''.join(plaintext_blocks)

RNS/Cryptography/aes/aes256.py

@@ -1,17 +1,17 @@
 # MIT License
-
-# Copyright (c) 2021 Or Gur Arie
-
+#
+# Copyright (c) 2024 BoppreH
+#
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
 # in the Software without restriction, including without limitation the rights
 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
-
+#
 # The above copyright notice and this permission notice shall be included in all
 # copies or substantial portions of the Software.
-
+#
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -20,12 +20,6 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-'''
-Utils class for AES encryption / decryption
-'''
-
-## AES lookup tables
-# resource: https://en.wikipedia.org/wiki/Rijndael_S-box
 s_box = (
     0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
     0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
@@ -64,53 +58,33 @@ inv_s_box = (
     0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D,
 )
 
-
-## AES AddRoundKey
-# Round constants https://en.wikipedia.org/wiki/AES_key_schedule#Round_constants
-r_con = (
-    0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40,
-    0x80, 0x1B, 0x36, 0x6C, 0xD8, 0xAB, 0x4D, 0x9A,
-    0x2F, 0x5E, 0xBC, 0x63, 0xC6, 0x97, 0x35, 0x6A,
-    0xD4, 0xB3, 0x7D, 0xFA, 0xEF, 0xC5, 0x91, 0x39,
-)
-
-def add_round_key(s, k):
-    for i in range(4):
-        for j in range(4):
-            s[i][j] ^= k[i][j]
-
-
-## AES SubBytes
 def sub_bytes(s):
     for i in range(4):
         for j in range(4):
             s[i][j] = s_box[s[i][j]]
 
-
 def inv_sub_bytes(s):
     for i in range(4):
         for j in range(4):
             s[i][j] = inv_s_box[s[i][j]]
 
-
-## AES ShiftRows
 def shift_rows(s):
     s[0][1], s[1][1], s[2][1], s[3][1] = s[1][1], s[2][1], s[3][1], s[0][1]
     s[0][2], s[1][2], s[2][2], s[3][2] = s[2][2], s[3][2], s[0][2], s[1][2]
     s[0][3], s[1][3], s[2][3], s[3][3] = s[3][3], s[0][3], s[1][3], s[2][3]
 
-
 def inv_shift_rows(s):
     s[0][1], s[1][1], s[2][1], s[3][1] = s[3][1], s[0][1], s[1][1], s[2][1]
     s[0][2], s[1][2], s[2][2], s[3][2] = s[2][2], s[3][2], s[0][2], s[1][2]
     s[0][3], s[1][3], s[2][3], s[3][3] = s[1][3], s[2][3], s[3][3], s[0][3]
 
+def add_round_key(s, k):
+    for i in range(4):
+        for j in range(4):
+            s[i][j] ^= k[i][j]
 
-## AES MixColumns
-# learned from http://cs.ucsb.edu/~koc/cs178/projects/JT/aes.c
 xtime = lambda a: (((a << 1) ^ 0x1B) & 0xFF) if (a & 0x80) else (a << 1)
 
-
 def mix_single_column(a):
     # see Sec 4.1.2 in The Design of Rijndael
     t = a[0] ^ a[1] ^ a[2] ^ a[3]
@@ -120,12 +94,10 @@ def mix_single_column(a):
     a[2] ^= t ^ xtime(a[2] ^ a[3])
     a[3] ^= t ^ xtime(a[3] ^ u)
 
-
 def mix_columns(s):
     for i in range(4):
         mix_single_column(s[i])
 
-
 def inv_mix_columns(s):
     # see Sec 4.1.3 in The Design of Rijndael
     for i in range(4):
@@ -138,22 +110,127 @@ def inv_mix_columns(s):
 
     mix_columns(s)
 
-
-## AES Bytes
-def bytes2matrix(text):
-    """ Converts a 16-byte array into a 4x4 matrix.  """
-    return [list(text[i:i+4]) for i in range(0, len(text), 4)]
-
-def matrix2bytes(matrix):
-    """ Converts a 4x4 matrix into a 16-byte array.  """
-    return bytes(sum(matrix, []))
+r_con = (
+    0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40,
+    0x80, 0x1B, 0x36, 0x6C, 0xD8, 0xAB, 0x4D, 0x9A,
+    0x2F, 0x5E, 0xBC, 0x63, 0xC6, 0x97, 0x35, 0x6A,
+    0xD4, 0xB3, 0x7D, 0xFA, 0xEF, 0xC5, 0x91, 0x39,
+)
 
 
-def xor_bytes(a, b):
-    """ Returns a new byte array with the elements xor'ed. """
-    return bytes(i^j for i, j in zip(a, b))
+def bytes2matrix(text): return [list(text[i:i+4]) for i in range(0, len(text), 4)]
+def matrix2bytes(matrix): return bytes(sum(matrix, []))
+def xor_bytes(a, b): return bytes(i^j for i, j in zip(a, b))
 
+def inc_bytes(a):
+    out = list(a)
+    for i in reversed(range(len(out))):
+        if out[i] == 0xFF:
+            out[i] = 0
+        else:
+            out[i] += 1
+            break
+    return bytes(out)
 
 def split_blocks(message, block_size=16, require_padding=True):
-        assert len(message) % block_size == 0 or not require_padding
-        return [message[i:i+16] for i in range(0, len(message), block_size)]
+    assert len(message) % block_size == 0 or not require_padding
+    return [message[i:i+16] for i in range(0, len(message), block_size)]
+
+class AES256:
+    rounds_by_key_size = {32: 14}
+    def __init__(self, master_key):
+        assert len(master_key) in AES256.rounds_by_key_size
+        self.n_rounds = AES256.rounds_by_key_size[len(master_key)]
+        self._key_matrices = self._expand_key(master_key)
+
+    def _expand_key(self, master_key):
+        # Initialize round keys with raw key material.
+        key_columns = bytes2matrix(master_key)
+        iteration_size = len(master_key) // 4
+
+        i = 1
+        while len(key_columns) < (self.n_rounds + 1) * 4:
+            # Copy previous word.
+            word = list(key_columns[-1])
+
+            # Perform schedule_core once every "row".
+            if len(key_columns) % iteration_size == 0:
+                # Circular shift.
+                word.append(word.pop(0))
+                # Map to S-BOX.
+                word = [s_box[b] for b in word]
+                # XOR with first byte of R-CON, since the others bytes of R-CON are 0.
+                word[0] ^= r_con[i]
+                i += 1
+            elif len(master_key) == 32 and len(key_columns) % iteration_size == 4:
+                # Run word through S-box in the fourth iteration when using a
+                # 256-bit key.
+                word = [s_box[b] for b in word]
+
+            # XOR with equivalent word from previous iteration.
+            word = xor_bytes(word, key_columns[-iteration_size])
+            key_columns.append(word)
+
+        # Group key words in 4x4 byte matrices.
+        return [key_columns[4*i : 4*(i+1)] for i in range(len(key_columns) // 4)]
+
+    def encrypt_block(self, plaintext):
+        assert len(plaintext) == 16
+
+        plain_state = bytes2matrix(plaintext)
+
+        add_round_key(plain_state, self._key_matrices[0])
+
+        for i in range(1, self.n_rounds):
+            sub_bytes(plain_state)
+            shift_rows(plain_state)
+            mix_columns(plain_state)
+            add_round_key(plain_state, self._key_matrices[i])
+
+        sub_bytes(plain_state)
+        shift_rows(plain_state)
+        add_round_key(plain_state, self._key_matrices[-1])
+
+        return matrix2bytes(plain_state)
+
+    def decrypt_block(self, ciphertext):
+        assert len(ciphertext) == 16
+
+        cipher_state = bytes2matrix(ciphertext)
+
+        add_round_key(cipher_state, self._key_matrices[-1])
+        inv_shift_rows(cipher_state)
+        inv_sub_bytes(cipher_state)
+
+        for i in range(self.n_rounds - 1, 0, -1):
+            add_round_key(cipher_state, self._key_matrices[i])
+            inv_mix_columns(cipher_state)
+            inv_shift_rows(cipher_state)
+            inv_sub_bytes(cipher_state)
+
+        add_round_key(cipher_state, self._key_matrices[0])
+
+        return matrix2bytes(cipher_state)
+
+    def encrypt_cbc(self, plaintext, iv):
+        if len(iv) != 16: raise ValueError(f"Invalid IV length: {len(iv)}")
+        blocks = []
+        previous = iv
+        for plaintext_block in split_blocks(plaintext):
+            block = self.encrypt_block(xor_bytes(plaintext_block, previous))
+            blocks.append(block)
+            previous = block
+
+        return b''.join(blocks)
+
+    def decrypt_cbc(self, ciphertext, iv):
+        if len(iv) != 16: raise ValueError(f"Invalid IV length: {len(iv)}")
+        blocks = []
+        previous = iv
+        for ciphertext_block in split_blocks(ciphertext):
+            blocks.append(xor_bytes(previous, self.decrypt_block(ciphertext_block)))
+            previous = ciphertext_block
+
+        return b''.join(blocks)
+
+__all__ = ["AES256"]

RNS/Destination.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,11 +28,14 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+import os
 import math
 import time
+import threading
 import RNS
 
-from RNS.Cryptography import Fernet
+from RNS.Cryptography import Token
+from .vendor import umsgpack as umsgpack
 
 class Callbacks:
     def __init__(self):
@@ -38,14 +49,14 @@ class Destination:
     instances are used both to create outgoing and incoming endpoints. The
     destination type will decide if encryption, and what type, is used in
     communication with the endpoint. A destination can also announce its
-    presence on the network, which will also distribute necessary keys for
+    presence on the network, which will distribute necessary keys for
     encrypted communication with it.
 
     :param identity: An instance of :ref:`RNS.Identity<api-identity>`. Can hold only public keys for an outgoing destination, or holding private keys for an ingoing.
     :param direction: ``RNS.Destination.IN`` or ``RNS.Destination.OUT``.
     :param type: ``RNS.Destination.SINGLE``, ``RNS.Destination.GROUP`` or ``RNS.Destination.PLAIN``.
     :param app_name: A string specifying the app name.
-    :param \*aspects: Any non-zero number of string arguments.
+    :param \\*aspects: Any non-zero number of string arguments.
     """
 
     # Constants
@@ -71,6 +82,16 @@ class Destination:
 
     PR_TAG_WINDOW = 30
 
+    RATCHET_COUNT    = 512
+    """
+    The default number of generated ratchet keys a destination will retain, if it has ratchets enabled.
+    """
+
+    RATCHET_INTERVAL = 30*60
+    """
+    The minimum interval between rotating ratchet keys, in seconds.
+    """
+
     @staticmethod
     def expand_name(identity, app_name, *aspects):
         """
@@ -137,6 +158,14 @@ class Destination:
         self.type = type
         self.direction = direction
         self.proof_strategy = Destination.PROVE_NONE
+        self.ratchets = None
+        self.ratchets_path = None
+        self.ratchet_interval = Destination.RATCHET_INTERVAL
+        self.ratchet_file_lock = threading.Lock()
+        self.retained_ratchets = Destination.RATCHET_COUNT
+        self.latest_ratchet_time = None
+        self.latest_ratchet_id = None
+        self.__enforce_ratchets = False
         self.mtu = 0
 
         self.path_responses = {}
@@ -146,6 +175,9 @@ class Destination:
             identity = RNS.Identity()
             aspects = aspects+(identity.hexhash,)
 
+        if identity == None and direction == Destination.OUT and self.type != Destination.PLAIN:
+            raise ValueError("Can't create outbound SINGLE destination without an identity")
+
         if identity != None and self.type == Destination.PLAIN:
             raise TypeError("Selected destination type PLAIN cannot hold an identity")
 
@@ -168,8 +200,45 @@ class Destination:
         """
         :returns: A human-readable representation of the destination including addressable hash and full name.
         """
-        return "<"+self.name+"/"+self.hexhash+">"
+        return "<"+self.name+":"+self.hexhash+">"
 
+    def _clean_ratchets(self):
+        if self.ratchets != None:
+            if len (self.ratchets) > self.retained_ratchets:
+                self.ratchets = self.ratchets[:Destination.RATCHET_COUNT]
+
+    def _persist_ratchets(self):
+        try:
+            with self.ratchet_file_lock:
+                temp_write_path = self.ratchets_path+".tmp"
+                packed_ratchets = umsgpack.packb(self.ratchets)
+                persisted_data = {"signature": self.sign(packed_ratchets), "ratchets": packed_ratchets}
+                ratchets_file = open(temp_write_path, "wb")
+                ratchets_file.write(umsgpack.packb(persisted_data))
+                ratchets_file.close()
+                if os.path.isfile(self.ratchets_path): os.unlink(self.ratchets_path)
+                os.rename(temp_write_path, self.ratchets_path)
+        except Exception as e:
+            RNS.trace_exception(e)
+            self.ratchets = None
+            self.ratchets_path = None
+            raise OSError("Could not write ratchet file contents for "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
+
+    def rotate_ratchets(self):
+        if self.ratchets != None:
+            now = time.time()
+            if now > self.latest_ratchet_time+self.ratchet_interval:
+                RNS.log("Rotating ratchets for "+str(self), RNS.LOG_DEBUG)
+                new_ratchet = RNS.Identity._generate_ratchet()
+                self.ratchets.insert(0, new_ratchet)
+                self.latest_ratchet_time = now
+                self._clean_ratchets()
+                self._persist_ratchets()
+            return True
+        else:
+            raise SystemError("Cannot rotate ratchet on "+str(self)+", ratchets are not enabled")
+
+        return False
 
     def announce(self, app_data=None, path_response=False, attached_interface=None, tag=None, send=True):
         """
@@ -185,6 +254,7 @@ class Destination:
         if self.direction != Destination.IN:
             raise TypeError("Only IN destination types can be announced")
         
+        ratchet = b""
         now = time.time()
         stale_responses = []
         for entry_tag in self.path_responses:
@@ -211,6 +281,11 @@ class Destination:
             destination_hash = self.hash
             random_hash = RNS.Identity.get_random_hash()[0:5]+int(time.time()).to_bytes(5, "big")
 
+            if self.ratchets != None:
+                self.rotate_ratchets()
+                ratchet = RNS.Identity._ratchet_public_bytes(self.ratchets[0])
+                RNS.Identity._remember_ratchet(self.hash, ratchet)
+
             if app_data == None and self.default_app_data != None:
                 if isinstance(self.default_app_data, bytes):
                     app_data = self.default_app_data
@@ -219,13 +294,12 @@ class Destination:
                     if isinstance(returned_app_data, bytes):
                         app_data = returned_app_data
             
-            signed_data = self.hash+self.identity.get_public_key()+self.name_hash+random_hash
+            signed_data = self.hash+self.identity.get_public_key()+self.name_hash+random_hash+ratchet
             if app_data != None:
                 signed_data += app_data
 
             signature = self.identity.sign(signed_data)
-
-            announce_data = self.identity.get_public_key()+self.name_hash+random_hash+signature
+            announce_data = self.identity.get_public_key()+self.name_hash+random_hash+ratchet+signature
 
             if app_data != None:
                 announce_data += app_data
@@ -237,8 +311,13 @@ class Destination:
         else:
             announce_context = RNS.Packet.NONE
 
-        announce_packet = RNS.Packet(self, announce_data, RNS.Packet.ANNOUNCE, context = announce_context, attached_interface = attached_interface)
+        if ratchet:
+            context_flag = RNS.Packet.FLAG_SET
+        else:
+            context_flag = RNS.Packet.FLAG_UNSET
 
+        announce_packet = RNS.Packet(self, announce_data, RNS.Packet.ANNOUNCE, context = announce_context,
+                                     attached_interface = attached_interface, context_flag=context_flag)
         if send:
             announce_packet.send()
         else:
@@ -298,8 +377,7 @@ class Destination:
         else:
             self.proof_strategy = proof_strategy
 
-
-    def register_request_handler(self, path, response_generator = None, allow = ALLOW_NONE, allowed_list = None):
+    def register_request_handler(self, path, response_generator = None, allow = ALLOW_NONE, allowed_list = None, auto_compress = True):
         """
         Registers a request handler.
 
@@ -307,20 +385,17 @@ class Destination:
         :param response_generator: A function or method with the signature *response_generator(path, data, request_id, link_id, remote_identity, requested_at)* to be called. Whatever this funcion returns will be sent as a response to the requester. If the function returns ``None``, no response will be sent.
         :param allow: One of ``RNS.Destination.ALLOW_NONE``, ``RNS.Destination.ALLOW_ALL`` or ``RNS.Destination.ALLOW_LIST``. If ``RNS.Destination.ALLOW_LIST`` is set, the request handler will only respond to requests for identified peers in the supplied list.
         :param allowed_list: A list of *bytes-like* :ref:`RNS.Identity<api-identity>` hashes.
+        :param auto_compress: If ``True`` or ``False``, determines whether automatic compression of responses should be carried out. If set to an integer value, responses will only be auto-compressed if under this size in bytes. If omitted, the default compression settings will be followed.
         :raises: ``ValueError`` if any of the supplied arguments are invalid.
         """
-        if path == None or path == "":
-            raise ValueError("Invalid path specified")
-        elif not callable(response_generator):
-            raise ValueError("Invalid response generator specified")
-        elif not allow in Destination.request_policies:
-            raise ValueError("Invalid request policy")
+        if path == None or path == "": raise ValueError("Invalid path specified")
+        elif not callable(response_generator): raise ValueError("Invalid response generator specified")
+        elif not allow in Destination.request_policies: raise ValueError("Invalid request policy")
         else:
             path_hash = RNS.Identity.truncated_hash(path.encode("utf-8"))
-            request_handler = [path, response_generator, allow, allowed_list]
+            request_handler = [path, response_generator, allow, allowed_list, auto_compress]
             self.request_handlers[path_hash] = request_handler
 
-
     def deregister_request_handler(self, path):
         """
         Deregisters a request handler.
@@ -335,15 +410,15 @@ class Destination:
         else:
             return False
 
-        
-
     def receive(self, packet):
         if packet.packet_type == RNS.Packet.LINKREQUEST:
             plaintext = packet.data
             self.incoming_link_request(plaintext, packet)
         else:
             plaintext = self.decrypt(packet.data)
-            if plaintext != None:
+            packet.ratchet_id = self.latest_ratchet_id
+            if plaintext == None: return False
+            else:
                 if packet.packet_type == RNS.Packet.DATA:
                     if self.callbacks.packet != None:
                         try:
@@ -351,6 +426,7 @@ class Destination:
                         except Exception as e:
                             RNS.log("Error while executing receive callback from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
 
+                return True
 
     def incoming_link_request(self, data, packet):
         if self.accept_link_requests:
@@ -358,6 +434,109 @@ class Destination:
             if link != None:
                 self.links.append(link)
 
+    def _reload_ratchets(self, ratchets_path):
+        if os.path.isfile(ratchets_path):
+            with self.ratchet_file_lock:
+                def load_attempt():
+                    ratchets_file = open(ratchets_path, "rb")
+                    persisted_data = umsgpack.unpackb(ratchets_file.read())
+                    if "signature" in persisted_data and "ratchets" in persisted_data:
+                        if self.identity.validate(persisted_data["signature"], persisted_data["ratchets"]):
+                            self.ratchets = umsgpack.unpackb(persisted_data["ratchets"])
+                            self.ratchets_path = ratchets_path
+                        else:
+                            raise KeyError("Invalid ratchet file signature")
+                
+                try:
+                    try:
+                        load_attempt()
+
+                    except Exception as e:
+                        RNS.trace_exception(e)
+                        RNS.log(f"First ratchet reload attempt for {self} failed. Possible I/O conflict. Retrying in 500ms.", RNS.LOG_ERROR)
+                        time.sleep(0.5)
+                        load_attempt()
+                        RNS.log(f"Ratchet reload retry succeeded", RNS.LOG_DEBUG)
+
+                except Exception as e:
+                    self.ratchets = None
+                    self.ratchets_path = None
+                    RNS.trace_exception(e)
+                    raise OSError("Could not read ratchet file contents for "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
+
+        else:
+            RNS.log("No existing ratchet data found, initialising new ratchet file for "+str(self), RNS.LOG_DEBUG)
+            self.ratchets = []
+            self.ratchets_path = ratchets_path
+            self._persist_ratchets()
+
+    def enable_ratchets(self, ratchets_path):
+        """
+        Enables ratchets on the destination. When ratchets are enabled, Reticulum will automatically rotate
+        the keys used to encrypt packets to this destination, and include the latest ratchet key in announces.
+
+        Enabling ratchets on a destination will provide forward secrecy for packets sent to that destination,
+        even when sent outside a ``Link``. The normal Reticulum ``Link`` establishment procedure already performs
+        its own ephemeral key exchange for each link establishment, which means that ratchets are not necessary
+        to provide forward secrecy for links.
+
+        Enabling ratchets will have a small impact on announce size, adding 32 bytes to every sent announce.
+
+        :param ratchets_path: The path to a file to store ratchet data in.
+        :returns: True if the operation succeeded, otherwise False.
+        """
+        if ratchets_path != None:
+            self.latest_ratchet_time = 0
+            self._reload_ratchets(ratchets_path)
+
+            RNS.log("Ratchets enabled on "+str(self), RNS.LOG_DEBUG)
+            return True
+
+        else:
+            raise ValueError("No ratchet file path specified for "+str(self))
+
+    def enforce_ratchets(self):
+        """
+        When ratchet enforcement is enabled, this destination will never accept packets that use its
+        base Identity key for encryption, but only accept packets encrypted with one of the retained
+        ratchet keys.
+        """
+        if self.ratchets != None:
+            self.__enforce_ratchets = True
+            RNS.log("Ratchets enforced on "+str(self), RNS.LOG_DEBUG)
+            return True
+        else:
+            return False
+
+    def set_retained_ratchets(self, retained_ratchets):
+        """
+        Sets the number of previously generated ratchet keys this destination will retain,
+        and try to use when decrypting incoming packets. Defaults to ``Destination.RATCHET_COUNT``.
+
+        :param retained_ratchets: The number of generated ratchets to retain.
+        :returns: True if the operation succeeded, False if not.
+        """
+        if isinstance(retained_ratchets, int) and retained_ratchets > 0:
+            self.retained_ratchets = retained_ratchets
+            self._clean_ratchets()
+            return True
+        else:
+            return False
+
+    def set_ratchet_interval(self, interval):
+        """
+        Sets the minimum interval in seconds between ratchet key rotation.
+        Defaults to ``Destination.RATCHET_INTERVAL``.
+
+        :param interval: The minimum interval in seconds.
+        :returns: True if the operation succeeded, False if not.
+        """
+        if isinstance(interval, int) and interval > 0:
+            self.ratchet_interval = interval
+            return True
+        else:
+            return False
+
     def create_keys(self):
         """
         For a ``RNS.Destination.GROUP`` type destination, creates a new symmetric key.
@@ -371,9 +550,8 @@ class Destination:
             raise TypeError("A single destination holds keys through an Identity instance")
 
         if self.type == Destination.GROUP:
-            self.prv_bytes = Fernet.generate_key()
-            self.prv = Fernet(self.prv_bytes)
-
+            self.prv_bytes = Token.generate_key()
+            self.prv = Token(self.prv_bytes)
 
     def get_private_key(self):
         """
@@ -388,7 +566,6 @@ class Destination:
         else:
             return self.prv_bytes
 
-
     def load_private_key(self, key):
         """
         For a ``RNS.Destination.GROUP`` type destination, loads a symmetric private key.
@@ -404,7 +581,7 @@ class Destination:
 
         if self.type == Destination.GROUP:
             self.prv_bytes = key
-            self.prv = Fernet(self.prv_bytes)
+            self.prv = Token(self.prv_bytes)
 
     def load_public_key(self, key):
         if self.type != Destination.SINGLE:
@@ -412,7 +589,6 @@ class Destination:
         else:
             raise TypeError("A single destination holds keys through an Identity instance")
 
-
     def encrypt(self, plaintext):
         """
         Encrypts information for ``RNS.Destination.SINGLE`` or ``RNS.Destination.GROUP`` type destination.
@@ -424,7 +600,10 @@ class Destination:
             return plaintext
 
         if self.type == Destination.SINGLE and self.identity != None:
-            return self.identity.encrypt(plaintext)
+            selected_ratchet = RNS.Identity.get_ratchet(self.hash)
+            if selected_ratchet:
+                self.latest_ratchet_id = RNS.Identity._get_ratchet_id(selected_ratchet)
+            return self.identity.encrypt(plaintext, ratchet=selected_ratchet)
 
         if self.type == Destination.GROUP:
             if hasattr(self, "prv") and self.prv != None:
@@ -436,8 +615,6 @@ class Destination:
             else:
                 raise ValueError("No private key held by GROUP destination. Did you create or load one?")
 
-
-
     def decrypt(self, ciphertext):
         """
         Decrypts information for ``RNS.Destination.SINGLE`` or ``RNS.Destination.GROUP`` type destination.
@@ -449,7 +626,28 @@ class Destination:
             return ciphertext
 
         if self.type == Destination.SINGLE and self.identity != None:
-            return self.identity.decrypt(ciphertext)
+            if self.ratchets:
+                decrypted = None
+                try:
+                    decrypted = self.identity.decrypt(ciphertext, ratchets=self.ratchets, enforce_ratchets=self.__enforce_ratchets, ratchet_id_receiver=self)
+                except:
+                    decrypted = None
+
+                if not decrypted:
+                    try:
+                        RNS.log(f"Decryption with ratchets failed on {self}, reloading ratchets from storage and retrying", RNS.LOG_ERROR)
+                        self._reload_ratchets(self.ratchets_path)
+                        decrypted = self.identity.decrypt(ciphertext, ratchets=self.ratchets, enforce_ratchets=self.__enforce_ratchets, ratchet_id_receiver=self)
+                    except Exception as e:
+                        RNS.log(f"Decryption still failing after ratchet reload. The contained exception was: {e}", RNS.LOG_ERROR)
+                        raise e
+
+                    if decrypted: RNS.log("Decryption succeeded after ratchet reload", RNS.LOG_NOTICE)
+
+                return decrypted
+
+            else:
+                return self.identity.decrypt(ciphertext, ratchets=None, enforce_ratchets=self.__enforce_ratchets, ratchet_id_receiver=self)
 
         if self.type == Destination.GROUP:
             if hasattr(self, "prv") and self.prv != None:
@@ -461,7 +659,6 @@ class Destination:
             else:
                 raise ValueError("No private key held by GROUP destination. Did you create or load one?")
 
-
     def sign(self, message):
         """
         Signs information for ``RNS.Destination.SINGLE`` type destination.

RNS/Identity.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors.
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -26,11 +34,12 @@ import RNS
 import time
 import atexit
 import hashlib
+import threading
 
 from .vendor import umsgpack as umsgpack
 
 from RNS.Cryptography import X25519PrivateKey, X25519PublicKey, Ed25519PrivateKey, Ed25519PublicKey
-from RNS.Cryptography import Fernet
+from RNS.Cryptography import Token
 
 
 class Identity:
@@ -49,24 +58,42 @@ class Identity:
 
     KEYSIZE     = 256*2
     """
-    X25519 key size in bits. A complete key is the concatenation of a 256 bit encryption key, and a 256 bit signing key.
-    """   
+    X.25519 key size in bits. A complete key is the concatenation of a 256 bit encryption key, and a 256 bit signing key.
+    """
+
+    RATCHETSIZE = 256
+    """
+    X.25519 ratchet key size in bits.
+    """
+
+    RATCHET_EXPIRY = 60*60*24*30
+    """
+    The expiry time for received ratchets in seconds, defaults to 30 days. Reticulum will always use the most recently
+    announced ratchet, and remember it for up to ``RATCHET_EXPIRY`` since receiving it, after which it will be discarded.
+    If a newer ratchet is announced in the meantime, it will be replace the already known ratchet.
+    """
 
     # Non-configurable constants
-    FERNET_OVERHEAD           = RNS.Cryptography.Fernet.FERNET_OVERHEAD
+    TOKEN_OVERHEAD            = RNS.Cryptography.Token.TOKEN_OVERHEAD
     AES128_BLOCKSIZE          = 16          # In bytes
     HASHLENGTH                = 256         # In bits
     SIGLENGTH                 = KEYSIZE     # In bits
 
-    NAME_HASH_LENGTH     = 80
-    TRUNCATED_HASHLENGTH = RNS.Reticulum.TRUNCATED_HASHLENGTH
+    NAME_HASH_LENGTH          = 80
+    TRUNCATED_HASHLENGTH      = RNS.Reticulum.TRUNCATED_HASHLENGTH
     """
     Constant specifying the truncated hash length (in bits) used by Reticulum
     for addressable hashes and other purposes. Non-configurable.
     """
 
+    DERIVED_KEY_LENGTH        = 512//8
+    DERIVED_KEY_LENGTH_LEGACY = 256//8
+
     # Storage
     known_destinations = {}
+    known_ratchets = {}
+
+    ratchet_persist_lock = threading.Lock()
 
     @staticmethod
     def remember(packet_hash, destination_hash, public_key, app_data = None):
@@ -77,29 +104,47 @@ class Identity:
 
 
     @staticmethod
-    def recall(destination_hash):
+    def recall(target_hash, from_identity_hash=False):
         """
-        Recall identity for a destination hash.
+        Recall identity for a destination or identity hash. By default, this function
+        will return the identity associated with a given *destination* hash. As an
+        example, if you know the ``lxmf.delivery`` destination hash of an endpoint,
+        this function will return the associated underlying identity. You can also
+        search for an identity from a known *identity hash*, by setting the
+        ``from_identity_hash`` argument.
 
-        :param destination_hash: Destination hash as *bytes*.
+        :param target_hash: Destination or identity hash as *bytes*.
+        :param from_identity_hash: Whether to search based on identity hash instead of destination hash as *bool*.
         :returns: An :ref:`RNS.Identity<api-identity>` instance that can be used to create an outgoing :ref:`RNS.Destination<api-destination>`, or *None* if the destination is unknown.
         """
-        if destination_hash in Identity.known_destinations:
-            identity_data = Identity.known_destinations[destination_hash]
-            identity = Identity(create_keys=False)
-            identity.load_public_key(identity_data[2])
-            identity.app_data = identity_data[3]
-            return identity
-        else:
-            for registered_destination in RNS.Transport.destinations:
-                if destination_hash == registered_destination.hash:
+        if from_identity_hash:
+            for destination_hash in Identity.known_destinations:
+                if target_hash == Identity.truncated_hash(Identity.known_destinations[destination_hash][2]):
+                    identity_data = Identity.known_destinations[destination_hash]
                     identity = Identity(create_keys=False)
-                    identity.load_public_key(registered_destination.identity.get_public_key())
-                    identity.app_data = None
+                    identity.load_public_key(identity_data[2])
+                    identity.app_data = identity_data[3]
                     return identity
 
             return None
 
+        else:
+            if target_hash in Identity.known_destinations:
+                identity_data = Identity.known_destinations[target_hash]
+                identity = Identity(create_keys=False)
+                identity.load_public_key(identity_data[2])
+                identity.app_data = identity_data[3]
+                return identity
+            else:
+                for registered_destination in RNS.Transport.destinations:
+                    if target_hash == registered_destination.hash:
+                        identity = Identity(create_keys=False)
+                        identity.load_public_key(registered_destination.identity.get_public_key())
+                        identity.app_data = None
+                        return identity
+
+                return None
+
     @staticmethod
     def recall_app_data(destination_hash):
         """
@@ -139,9 +184,9 @@ class Identity:
             storage_known_destinations = {}
             if os.path.isfile(RNS.Reticulum.storagepath+"/known_destinations"):
                 try:
-                    file = open(RNS.Reticulum.storagepath+"/known_destinations","rb")
-                    storage_known_destinations = umsgpack.load(file)
-                    file.close()
+                    with open(RNS.Reticulum.storagepath+"/known_destinations","rb") as file:
+                        storage_known_destinations = umsgpack.load(file)
+ 
                 except:
                     pass
 
@@ -153,9 +198,9 @@ class Identity:
                 RNS.log("Skipped recombining known destinations from disk, since an error occurred: "+str(e), RNS.LOG_WARNING)
 
             RNS.log("Saving "+str(len(Identity.known_destinations))+" known destinations to storage...", RNS.LOG_DEBUG)
-            file = open(RNS.Reticulum.storagepath+"/known_destinations","wb")
-            umsgpack.dump(Identity.known_destinations, file)
-            file.close()
+            with open(RNS.Reticulum.storagepath+"/known_destinations","wb") as file:
+                umsgpack.dump(Identity.known_destinations, file)
+            
 
             save_time = time.time() - save_start
             if save_time < 1:
@@ -175,9 +220,8 @@ class Identity:
     def load_known_destinations():
         if os.path.isfile(RNS.Reticulum.storagepath+"/known_destinations"):
             try:
-                file = open(RNS.Reticulum.storagepath+"/known_destinations","rb")
-                loaded_known_destinations = umsgpack.load(file)
-                file.close()
+                with open(RNS.Reticulum.storagepath+"/known_destinations","rb") as file:
+                    loaded_known_destinations = umsgpack.load(file)
 
                 Identity.known_destinations = {}
                 for known_destination in loaded_known_destinations:
@@ -197,7 +241,7 @@ class Identity:
         Get a SHA-256 hash of passed data.
 
         :param data: Data to be hashed as *bytes*.
-        :returns: SHA-256 hash as *bytes*
+        :returns: SHA-256 hash as *bytes*.
         """
         return RNS.Cryptography.sha256(data)
 
@@ -207,7 +251,7 @@ class Identity:
         Get a truncated SHA-256 hash of passed data.
 
         :param data: Data to be hashed as *bytes*.
-        :returns: Truncated SHA-256 hash as *bytes*
+        :returns: Truncated SHA-256 hash as *bytes*.
         """
         return Identity.full_hash(data)[:(Identity.TRUNCATED_HASHLENGTH//8)]
 
@@ -217,24 +261,168 @@ class Identity:
         Get a random SHA-256 hash.
 
         :param data: Data to be hashed as *bytes*.
-        :returns: Truncated SHA-256 hash of random data as *bytes*
+        :returns: Truncated SHA-256 hash of random data as *bytes*.
         """
         return Identity.truncated_hash(os.urandom(Identity.TRUNCATED_HASHLENGTH//8))
 
+    @staticmethod
+    def current_ratchet_id(destination_hash):
+        """
+        Get the ID of the currently used ratchet key for a given destination hash
+
+        :param destination_hash: A destination hash as *bytes*.
+        :returns: A ratchet ID as *bytes* or *None*.
+        """
+        ratchet = Identity.get_ratchet(destination_hash)
+        if ratchet == None:
+            return None
+        else:
+            return Identity._get_ratchet_id(ratchet)
+
+    @staticmethod
+    def _get_ratchet_id(ratchet_pub_bytes):
+        return Identity.full_hash(ratchet_pub_bytes)[:Identity.NAME_HASH_LENGTH//8]
+
+    @staticmethod
+    def _ratchet_public_bytes(ratchet):
+        return X25519PrivateKey.from_private_bytes(ratchet).public_key().public_bytes()
+
+    @staticmethod
+    def _generate_ratchet():
+        ratchet_prv = X25519PrivateKey.generate()
+        ratchet_pub = ratchet_prv.public_key()
+        return ratchet_prv.private_bytes()
+
+    @staticmethod
+    def _remember_ratchet(destination_hash, ratchet):
+        try:
+            if destination_hash in Identity.known_ratchets and Identity.known_ratchets[destination_hash] == ratchet:
+                ratchet_exists = True
+            else:
+                ratchet_exists = False
+
+            if not ratchet_exists:
+                RNS.log(f"Remembering ratchet {RNS.prettyhexrep(Identity._get_ratchet_id(ratchet))} for {RNS.prettyhexrep(destination_hash)}", RNS.LOG_EXTREME)
+                Identity.known_ratchets[destination_hash] = ratchet
+                if not RNS.Transport.owner.is_connected_to_shared_instance:
+                    def persist_job():
+                        with Identity.ratchet_persist_lock:
+                            hexhash = RNS.hexrep(destination_hash, delimit=False)
+                            ratchet_data = {"ratchet": ratchet, "received": time.time()}
+
+                            ratchetdir = RNS.Reticulum.storagepath+"/ratchets"
+                            
+                            if not os.path.isdir(ratchetdir):
+                                os.makedirs(ratchetdir)
+
+                            outpath   = f"{ratchetdir}/{hexhash}.out"
+                            finalpath = f"{ratchetdir}/{hexhash}"
+                            with open(outpath, "wb") as ratchet_file:
+                                ratchet_file.write(umsgpack.packb(ratchet_data))
+                            os.replace(outpath, finalpath)
+
+                    
+                    threading.Thread(target=persist_job, daemon=True).start()
+
+        except Exception as e:
+            RNS.log(f"Could not persist ratchet for {RNS.prettyhexrep(destination_hash)} to storage.", RNS.LOG_ERROR)
+            RNS.log(f"The contained exception was: {e}")
+            RNS.trace_exception(e)
+
+    @staticmethod
+    def _clean_ratchets():
+        RNS.log("Cleaning ratchets...", RNS.LOG_DEBUG)
+        try:
+            now = time.time()
+            ratchetdir = RNS.Reticulum.storagepath+"/ratchets"
+            if os.path.isdir(ratchetdir):
+                for filename in os.listdir(ratchetdir):
+                    try:
+                        expired = False
+                        corrupted = False
+                        with open(f"{ratchetdir}/{filename}", "rb") as rf:
+                            # TODO: Remove individual ratchet file if corrupt
+                            try:
+                                ratchet_data = umsgpack.unpackb(rf.read())
+                                if now > ratchet_data["received"]+Identity.RATCHET_EXPIRY:
+                                    expired = True
+
+                            except Exception as e:
+                                RNS.log(f"Corrupted ratchet data while reading {ratchetdir}/{filename}, removing file", RNS.LOG_ERROR)
+                                corrupted = True
+
+                        if expired or corrupted:
+                            os.unlink(f"{ratchetdir}/{filename}")
+
+                    except Exception as e:
+                        RNS.log(f"An error occurred while cleaning ratchets, in the processing of {ratchetdir}/{filename}.", RNS.LOG_ERROR)
+                        RNS.log(f"The contained exception was: {e}", RNS.LOG_ERROR)
+
+        except Exception as e:
+            RNS.log(f"An error occurred while cleaning ratchets. The contained exception was: {e}", RNS.LOG_ERROR)
+
+    @staticmethod
+    def get_ratchet(destination_hash):
+        if not destination_hash in Identity.known_ratchets:
+            ratchetdir = RNS.Reticulum.storagepath+"/ratchets"
+            hexhash = RNS.hexrep(destination_hash, delimit=False)
+            ratchet_path = f"{ratchetdir}/{hexhash}"
+            if os.path.isfile(ratchet_path):
+                try:
+                    with open(ratchet_path, "rb") as ratchet_file:
+                        ratchet_data = umsgpack.unpackb(ratchet_file.read())
+                        if time.time() < ratchet_data["received"]+Identity.RATCHET_EXPIRY and len(ratchet_data["ratchet"]) == Identity.RATCHETSIZE//8:
+                            Identity.known_ratchets[destination_hash] = ratchet_data["ratchet"]
+                        else:
+                            return None
+                
+                except Exception as e:
+                    RNS.log(f"An error occurred while loading ratchet data for {RNS.prettyhexrep(destination_hash)} from storage.", RNS.LOG_ERROR)
+                    RNS.log(f"The contained exception was: {e}", RNS.LOG_ERROR)
+                    return None
+
+        if destination_hash in Identity.known_ratchets:
+            return Identity.known_ratchets[destination_hash]
+        else:
+            RNS.log(f"Could not load ratchet for {RNS.prettyhexrep(destination_hash)}", RNS.LOG_DEBUG)
+            return None
+
     @staticmethod
     def validate_announce(packet, only_validate_signature=False):
         try:
             if packet.packet_type == RNS.Packet.ANNOUNCE:
+                keysize       = Identity.KEYSIZE//8
+                ratchetsize   = Identity.RATCHETSIZE//8
+                name_hash_len = Identity.NAME_HASH_LENGTH//8
+                sig_len       = Identity.SIGLENGTH//8
                 destination_hash = packet.destination_hash
-                public_key = packet.data[:Identity.KEYSIZE//8]
-                name_hash = packet.data[Identity.KEYSIZE//8:Identity.KEYSIZE//8+Identity.NAME_HASH_LENGTH//8]
-                random_hash = packet.data[Identity.KEYSIZE//8+Identity.NAME_HASH_LENGTH//8:Identity.KEYSIZE//8+Identity.NAME_HASH_LENGTH//8+10]
-                signature = packet.data[Identity.KEYSIZE//8+Identity.NAME_HASH_LENGTH//8+10:Identity.KEYSIZE//8+Identity.NAME_HASH_LENGTH//8+10+Identity.SIGLENGTH//8]
-                app_data = b""
-                if len(packet.data) > Identity.KEYSIZE//8+Identity.NAME_HASH_LENGTH//8+10+Identity.SIGLENGTH//8:
-                    app_data = packet.data[Identity.KEYSIZE//8+Identity.NAME_HASH_LENGTH//8+10+Identity.SIGLENGTH//8:]
 
-                signed_data = destination_hash+public_key+name_hash+random_hash+app_data
+                # Get public key bytes from announce
+                public_key = packet.data[:keysize]
+
+                # If the packet context flag is set,
+                # this announce contains a new ratchet
+                if packet.context_flag == RNS.Packet.FLAG_SET:
+                    name_hash   = packet.data[keysize:keysize+name_hash_len ]
+                    random_hash = packet.data[keysize+name_hash_len:keysize+name_hash_len+10]
+                    ratchet     = packet.data[keysize+name_hash_len+10:keysize+name_hash_len+10+ratchetsize]
+                    signature   = packet.data[keysize+name_hash_len+10+ratchetsize:keysize+name_hash_len+10+ratchetsize+sig_len]
+                    app_data    = b""
+                    if len(packet.data) > keysize+name_hash_len+10+sig_len+ratchetsize:
+                        app_data = packet.data[keysize+name_hash_len+10+sig_len+ratchetsize:]
+
+                # If the packet context flag is not set,
+                # this announce does not contain a ratchet
+                else:
+                    ratchet     = b""
+                    name_hash   = packet.data[keysize:keysize+name_hash_len]
+                    random_hash = packet.data[keysize+name_hash_len:keysize+name_hash_len+10]
+                    signature   = packet.data[keysize+name_hash_len+10:keysize+name_hash_len+10+sig_len]
+                    app_data    = b""
+                    if len(packet.data) > keysize+name_hash_len+10+sig_len:
+                        app_data = packet.data[keysize+name_hash_len+10+sig_len:]
+
+                signed_data = destination_hash+public_key+name_hash+random_hash+ratchet+app_data
 
                 if not len(packet.data) > Identity.KEYSIZE//8+Identity.NAME_HASH_LENGTH//8+10+Identity.SIGLENGTH//8:
                     app_data = None
@@ -281,6 +469,9 @@ class Identity:
                         else:
                             RNS.log("Valid announce for "+RNS.prettyhexrep(destination_hash)+" "+str(packet.hops)+" hops away, received on "+str(packet.receiving_interface)+signal_str, RNS.LOG_EXTREME)
 
+                        if ratchet:
+                            Identity._remember_ratchet(destination_hash, ratchet)
+
                         return True
 
                     else:
@@ -469,7 +660,7 @@ class Identity:
     def get_context(self):
         return None
 
-    def encrypt(self, plaintext):
+    def encrypt(self, plaintext, ratchet=None):
         """
         Encrypts information for the identity.
 
@@ -481,25 +672,69 @@ class Identity:
             ephemeral_key = X25519PrivateKey.generate()
             ephemeral_pub_bytes = ephemeral_key.public_key().public_bytes()
 
-            shared_key = ephemeral_key.exchange(self.pub)
+            if ratchet != None:
+                target_public_key = X25519PublicKey.from_public_bytes(ratchet)
+            else:
+                target_public_key = self.pub
+
+            shared_key = ephemeral_key.exchange(target_public_key)
             
             derived_key = RNS.Cryptography.hkdf(
-                length=32,
+                length=Identity.DERIVED_KEY_LENGTH,
                 derive_from=shared_key,
                 salt=self.get_salt(),
                 context=self.get_context(),
             )
 
-            fernet = Fernet(derived_key)
-            ciphertext = fernet.encrypt(plaintext)
+            token = Token(derived_key)
+            ciphertext = token.encrypt(plaintext)
             token = ephemeral_pub_bytes+ciphertext
 
             return token
         else:
             raise KeyError("Encryption failed because identity does not hold a public key")
 
+    # Post 0.9.6 decryption will only accept AES-256
+    def __decrypt(self, shared_key, ciphertext):
+        derived_key = RNS.Cryptography.hkdf(
+            length=Identity.DERIVED_KEY_LENGTH,
+            derive_from=shared_key,
+            salt=self.get_salt(),
+            context=self.get_context())
 
-    def decrypt(self, ciphertext_token):
+        token = Token(derived_key)
+        plaintext = token.decrypt(ciphertext)
+        return plaintext
+
+    # This handles decryption during migration to AES-256 where
+    # older instances may still use AES-128. If decryption fails
+    # initially, AES-128 will be attempted as a fallback mode.
+    # This handler will be removed in RNS 0.9.6.
+    def __migration_decrypt(self, shared_key, ciphertext):
+        try:
+            derived_key = RNS.Cryptography.hkdf(
+                length=Identity.DERIVED_KEY_LENGTH,
+                derive_from=shared_key,
+                salt=self.get_salt(),
+                context=self.get_context())
+
+            token = Token(derived_key)
+            plaintext = token.decrypt(ciphertext)
+
+        except Exception as e:
+            # RNS.log("Decryption failed, attempting legacy mode fallback", RNS.LOG_DEBUG)
+            derived_key = RNS.Cryptography.hkdf(
+                length=Identity.DERIVED_KEY_LENGTH_LEGACY,
+                derive_from=shared_key,
+                salt=self.get_salt(),
+                context=self.get_context())
+
+            token = Token(derived_key)
+            plaintext = token.decrypt(ciphertext)
+
+        return plaintext
+
+    def decrypt(self, ciphertext_token, ratchets=None, enforce_ratchets=False, ratchet_id_receiver=None):
         """
         Decrypts information for the identity.
 
@@ -507,30 +742,50 @@ class Identity:
         :returns: Plaintext as *bytes*, or *None* if decryption fails.
         :raises: *KeyError* if the instance does not hold a private key.
         """
+
         if self.prv != None:
             if len(ciphertext_token) > Identity.KEYSIZE//8//2:
                 plaintext = None
                 try:
                     peer_pub_bytes = ciphertext_token[:Identity.KEYSIZE//8//2]
                     peer_pub = X25519PublicKey.from_public_bytes(peer_pub_bytes)
-
-                    shared_key = self.prv.exchange(peer_pub)
-
-                    derived_key = RNS.Cryptography.hkdf(
-                        length=32,
-                        derive_from=shared_key,
-                        salt=self.get_salt(),
-                        context=self.get_context(),
-                    )
-
-                    fernet = Fernet(derived_key)
                     ciphertext = ciphertext_token[Identity.KEYSIZE//8//2:]
-                    plaintext = fernet.decrypt(ciphertext)
+
+                    if ratchets:
+                        for ratchet in ratchets:
+                            try:
+                                ratchet_prv = X25519PrivateKey.from_private_bytes(ratchet)
+                                ratchet_id = Identity._get_ratchet_id(ratchet_prv.public_key().public_bytes())
+                                shared_key = ratchet_prv.exchange(peer_pub)
+                                plaintext = self.__migration_decrypt(shared_key, ciphertext)
+                                if ratchet_id_receiver:
+                                    ratchet_id_receiver.latest_ratchet_id = ratchet_id
+                                
+                                break
+                            
+                            except Exception as e:
+                                pass
+
+                    if enforce_ratchets and plaintext == None:
+                        RNS.log("Decryption with ratchet enforcement by "+RNS.prettyhexrep(self.hash)+" failed. Dropping packet.", RNS.LOG_DEBUG)
+                        if ratchet_id_receiver:
+                            ratchet_id_receiver.latest_ratchet_id = None
+                        return None
+
+                    if plaintext == None:
+                        shared_key = self.prv.exchange(peer_pub)
+                        plaintext = self.__migration_decrypt(shared_key, ciphertext)
+
+                        if ratchet_id_receiver:
+                            ratchet_id_receiver.latest_ratchet_id = None
 
                 except Exception as e:
                     RNS.log("Decryption by "+RNS.prettyhexrep(self.hash)+" failed: "+str(e), RNS.LOG_DEBUG)
+                    if ratchet_id_receiver:
+                        ratchet_id_receiver.latest_ratchet_id = None
                     
-                return plaintext;
+                return plaintext
+            
             else:
                 RNS.log("Decryption failed because the token size was invalid.", RNS.LOG_DEBUG)
                 return None

RNS/Interfaces/AX25KISSInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 from time import sleep
 import sys
 import threading
@@ -59,6 +67,7 @@ class AX25():
 class AX25KISSInterface(Interface):
     MAX_CHUNK = 32768
     BITRATE_GUESS = 1200
+    DEFAULT_IFAC_SIZE = 8
 
     owner    = None
     port     = None
@@ -68,8 +77,8 @@ class AX25KISSInterface(Interface):
     stopbits = None
     serial   = None
 
-    def __init__(self, owner, name, callsign, ssid, port, speed, databits, parity, stopbits, preamble, txtail, persistence, slottime, flow_control):
-        import importlib
+    def __init__(self, owner, configuration):
+        import importlib.util
         if importlib.util.find_spec('serial') != None:
             import serial
         else:
@@ -79,6 +88,25 @@ class AX25KISSInterface(Interface):
 
         super().__init__()
 
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        preamble = int(c["preamble"]) if "preamble" in c else None
+        txtail = int(c["txtail"]) if "txtail" in c else None
+        persistence = int(c["persistence"]) if "persistence" in c else None
+        slottime = int(c["slottime"]) if "slottime" in c else None
+        flow_control = c.as_bool("flow_control") if "flow_control" in c else False
+        port = c["port"] if "port" in c else None
+        speed = int(c["speed"]) if "speed" in c else 9600
+        databits = int(c["databits"]) if "databits" in c else 8
+        parity = c["parity"] if "parity" in c else "N"
+        stopbits = int(c["stopbits"]) if "stopbits" in c else 1
+
+        callsign = c["callsign"] if "callsign" in c else ""
+        ssid = int(c["ssid"]) if "ssid" in c else -1
+
+        if port == None:
+            raise ValueError("No port specified for serial interface")
+
         self.HW_MTU = 564
         
         self.pyserial = serial
@@ -96,7 +124,7 @@ class AX25KISSInterface(Interface):
         self.stopbits = stopbits
         self.timeout  = 100
         self.online   = False
-        self.bitrate  = KISSInterface.BITRATE_GUESS
+        self.bitrate  = AX25KISSInterface.BITRATE_GUESS
 
         self.packet_queue    = []
         self.flow_control    = flow_control
@@ -225,13 +253,13 @@ class AX25KISSInterface(Interface):
                 raise IOError("Could not enable AX.25 KISS interface flow control")
 
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         if (len(data) > AX25.HEADER_SIZE):
             self.rxb += len(data)
             self.owner.inbound(data[AX25.HEADER_SIZE:], self)
 
 
-    def processOutgoing(self,data):
+    def process_outgoing(self,data):
         datalen = len(data)
         if self.online:
             if self.interface_ready:
@@ -281,7 +309,7 @@ class AX25KISSInterface(Interface):
         if len(self.packet_queue) > 0:
             data = self.packet_queue.pop(0)
             self.interface_ready = True
-            self.processOutgoing(data)
+            self.process_outgoing(data)
         elif len(self.packet_queue) == 0:
             self.interface_ready = True
 
@@ -300,7 +328,7 @@ class AX25KISSInterface(Interface):
 
                     if (in_frame and byte == KISS.FEND and command == KISS.CMD_DATA):
                         in_frame = False
-                        self.processIncoming(data_buffer)
+                        self.process_incoming(data_buffer)
                     elif (byte == KISS.FEND):
                         in_frame = True
                         command = KISS.CMD_UNKNOWN

RNS/Interfaces/Android/KISSInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -52,6 +60,7 @@ class KISS():
 class KISSInterface(Interface):
     MAX_CHUNK = 32768
     BITRATE_GUESS = 1200
+    DEFAULT_IFAC_SIZE = 8
 
     owner    = None
     port     = None
@@ -61,8 +70,8 @@ class KISSInterface(Interface):
     stopbits = None
     serial   = None
 
-    def __init__(self, owner, name, port, speed, databits, parity, stopbits, preamble, txtail, persistence, slottime, flow_control, beacon_interval, beacon_data):
-        import importlib
+    def __init__(self, owner, configuration):
+        import importlib.util
         if RNS.vendor.platformutils.is_android():
             self.on_android  = True
             if importlib.util.find_spec('usbserial4a') != None:
@@ -83,6 +92,21 @@ class KISSInterface(Interface):
             raise SystemError("Android-specific interface was used on non-Android OS")
 
         super().__init__()
+
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        preamble = int(c["preamble"]) if "preamble" in c else None
+        txtail = int(c["txtail"]) if "txtail" in c else None
+        persistence = int(c["persistence"]) if "persistence" in c else None
+        slottime = int(c["slottime"]) if "slottime" in c else None
+        flow_control = c.as_bool("flow_control") if "flow_control" in c else False
+        port = c["port"] if "port" in c else None
+        speed = int(c["speed"]) if "speed" in c else 9600
+        databits = int(c["databits"]) if "databits" in c else 8
+        parity = c["parity"] if "parity" in c else "N"
+        stopbits = int(c["stopbits"]) if "stopbits" in c else 1
+        beacon_interval = int(c["beacon_interval"]) if "beacon_interval" in c and c["beacon_interval"] != None else None
+        beacon_data = c["beacon_data"] if "beacon_data" in c else None
         
         self.HW_MTU = 564
         
@@ -267,13 +291,13 @@ class KISSInterface(Interface):
                 raise IOError("Could not enable KISS interface flow control")
 
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)
         def af():
             self.owner.inbound(data, self)
         threading.Thread(target=af, daemon=True).start()
 
-    def processOutgoing(self,data):
+    def process_outgoing(self,data):
         datalen = len(data)
         if self.online:
             if self.interface_ready:
@@ -307,7 +331,7 @@ class KISSInterface(Interface):
         if len(self.packet_queue) > 0:
             data = self.packet_queue.pop(0)
             self.interface_ready = True
-            self.processOutgoing(data)
+            self.process_outgoing(data)
         elif len(self.packet_queue) == 0:
             self.interface_ready = True
 
@@ -328,7 +352,7 @@ class KISSInterface(Interface):
 
                     if (in_frame and byte == KISS.FEND and command == KISS.CMD_DATA):
                         in_frame = False
-                        self.processIncoming(data_buffer)
+                        self.process_incoming(data_buffer)
                     elif (byte == KISS.FEND):
                         in_frame = True
                         command = KISS.CMD_UNKNOWN
@@ -373,7 +397,13 @@ class KISSInterface(Interface):
                             if time.time() > self.first_tx + self.beacon_i:
                                 RNS.log("Interface "+str(self)+" is transmitting beacon data: "+str(self.beacon_d.decode("utf-8")), RNS.LOG_DEBUG)
                                 self.first_tx = None
-                                self.processOutgoing(self.beacon_d)
+
+                                # Pad to minimum length
+                                frame = bytearray(self.beacon_d)
+                                while len(frame) < 15:
+                                    frame.append(0x00)
+
+                                self.process_outgoing(bytes(frame))
 
         except Exception as e:
             self.online = False

RNS/Interfaces/Android/SerialInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -42,6 +50,7 @@ class HDLC():
 
 class SerialInterface(Interface):
     MAX_CHUNK = 32768
+    DEFAULT_IFAC_SIZE = 8
 
     owner    = None
     port     = None
@@ -51,8 +60,8 @@ class SerialInterface(Interface):
     stopbits = None
     serial   = None
 
-    def __init__(self, owner, name, port, speed, databits, parity, stopbits):
-        import importlib
+    def __init__(self, owner, configuration):
+        import importlib.util
         if RNS.vendor.platformutils.is_android():
             self.on_android  = True
             if importlib.util.find_spec('usbserial4a') != None:
@@ -74,6 +83,17 @@ class SerialInterface(Interface):
 
         super().__init__()
 
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        port = c["port"] if "port" in c else None
+        speed = int(c["speed"]) if "speed" in c else 9600
+        databits = int(c["databits"]) if "databits" in c else 8
+        parity = c["parity"] if "parity" in c else "N"
+        stopbits = int(c["stopbits"]) if "stopbits" in c else 1
+
+        if port == None:
+            raise ValueError("No port specified for serial interface")
+
         self.HW_MTU = 564
         
         self.pyserial = serial
@@ -172,13 +192,13 @@ class SerialInterface(Interface):
         RNS.log("Serial port "+self.port+" is now open", RNS.LOG_VERBOSE)
 
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)
         def af():
             self.owner.inbound(data, self)
         threading.Thread(target=af, daemon=True).start()
 
-    def processOutgoing(self,data):
+    def process_outgoing(self,data):
         if self.online:
             data = bytes([HDLC.FLAG])+HDLC.escape(data)+bytes([HDLC.FLAG])
             written = self.serial.write(data)
@@ -202,7 +222,7 @@ class SerialInterface(Interface):
 
                     if (in_frame and byte == HDLC.FLAG):
                         in_frame = False
-                        self.processIncoming(data_buffer)
+                        self.process_incoming(data_buffer)
                     elif (byte == HDLC.FLAG):
                         in_frame = True
                         data_buffer = b""

RNS/Interfaces/Android/__init__.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -23,5 +31,7 @@
 import os
 import glob
 
-modules = glob.glob(os.path.dirname(__file__)+"/*.py")
-__all__ = [ os.path.basename(f)[:-3] for f in modules if not f.endswith('__init__.py')]
+py_modules  = glob.glob(os.path.dirname(__file__)+"/*.py")
+pyc_modules = glob.glob(os.path.dirname(__file__)+"/*.pyc")
+modules     = py_modules+pyc_modules
+__all__ = list(set([os.path.basename(f).replace(".pyc", "").replace(".py", "") for f in modules if not (f.endswith("__init__.py") or f.endswith("__init__.pyc"))]))

RNS/Interfaces/AutoInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 from collections import deque
 import socketserver
 import threading
@@ -33,9 +41,13 @@ import RNS
 
 
 class AutoInterface(Interface):
+    HW_MTU = 1196
+    FIXED_MTU = True
+
     DEFAULT_DISCOVERY_PORT = 29716
     DEFAULT_DATA_PORT      = 42671
     DEFAULT_GROUP_ID       = "reticulum".encode("utf-8")
+    DEFAULT_IFAC_SIZE      = 16
 
     SCOPE_LINK         = "2"
     SCOPE_ADMIN        = "4"
@@ -43,7 +55,10 @@ class AutoInterface(Interface):
     SCOPE_ORGANISATION = "8"
     SCOPE_GLOBAL       = "e"
 
-    PEERING_TIMEOUT    = 7.5
+    MULTICAST_PERMANENT_ADDRESS_TYPE = "0"
+    MULTICAST_TEMPORARY_ADDRESS_TYPE = "1"
+
+    PEERING_TIMEOUT    = 10.0
 
     ALL_IGNORE_IFS     = ["lo0"]
     DARWIN_IGNORE_IFS  = ["awdl0", "llw0", "lo0", "en5"]
@@ -74,16 +89,35 @@ class AutoInterface(Interface):
         ifas = self.netinfo.ifaddresses(ifname)
         return ifas
 
-    def __init__(self, owner, name, group_id=None, discovery_scope=None, discovery_port=None, data_port=None, allowed_interfaces=None, ignored_interfaces=None, configured_bitrate=None):
-        from RNS.vendor.ifaddr import niwrapper
+    def interface_name_to_index(self, ifname):
+        # socket.if_nametoindex doesn't work with uuid interface names on windows, it wants the ethernet_0 style
+        # we will just get the index from netinfo instead as it seems to work
+        if RNS.vendor.platformutils.is_windows():
+            return self.netinfo.interface_names_to_indexes()[ifname]
+
+        return socket.if_nametoindex(ifname)
+
+    def __init__(self, owner, configuration):
+        c                      = Interface.get_config_obj(configuration)
+        name                   = c["name"]
+        group_id               = c["group_id"] if "group_id" in c else None
+        discovery_scope        = c["discovery_scope"] if "discovery_scope" in c else None
+        discovery_port         = int(c["discovery_port"]) if "discovery_port" in c else None
+        multicast_address_type = c["multicast_address_type"] if "multicast_address_type" in c else None
+        data_port              = int(c["data_port"]) if "data_port" in c else None
+        allowed_interfaces     = c.as_list("devices") if "devices" in c else None
+        ignored_interfaces     = c.as_list("ignored_devices") if "ignored_devices" in c else None
+        configured_bitrate     = c["configured_bitrate"] if "configured_bitrate" in c else None
+
+        from RNS.Interfaces import netinfo
         super().__init__()
-        self.netinfo = niwrapper
-
-        self.HW_MTU = 1064
+        self.netinfo = netinfo
 
+        self.HW_MTU = AutoInterface.HW_MTU
         self.IN  = True
         self.OUT = False
         self.name = name
+        self.owner = owner
         self.online = False
         self.peers = {}
         self.link_local_addresses = []
@@ -91,6 +125,8 @@ class AutoInterface(Interface):
         self.interface_servers = {}
         self.multicast_echoes = {}
         self.timed_out_interfaces = {}
+        self.spawned_interfaces = {}
+        self.write_lock = threading.Lock()
         self.mif_deque = deque(maxlen=AutoInterface.MULTI_IF_DEQUE_LEN)
         self.mif_deque_times = deque(maxlen=AutoInterface.MULTI_IF_DEQUE_LEN)
         self.carrier_changed = False
@@ -106,7 +142,7 @@ class AutoInterface(Interface):
         # Increase peering timeout on Android, due to potential
         # low-power modes implemented on many chipsets.
         if RNS.vendor.platformutils.is_android():
-            self.peering_timeout *= 3
+            self.peering_timeout *= 2.5
 
         if allowed_interfaces == None:
             self.allowed_interfaces = []
@@ -128,6 +164,15 @@ class AutoInterface(Interface):
         else:
             self.discovery_port = discovery_port
 
+        if multicast_address_type == None:
+            self.multicast_address_type = AutoInterface.MULTICAST_TEMPORARY_ADDRESS_TYPE
+        elif str(multicast_address_type).lower() == "temporary":
+            self.multicast_address_type = AutoInterface.MULTICAST_TEMPORARY_ADDRESS_TYPE
+        elif str(multicast_address_type).lower() == "permanent":
+            self.multicast_address_type = AutoInterface.MULTICAST_PERMANENT_ADDRESS_TYPE
+        else:
+            self.multicast_address_type = AutoInterface.MULTICAST_TEMPORARY_ADDRESS_TYPE
+
         if data_port == None:
             self.data_port = AutoInterface.DEFAULT_DATA_PORT
         else:
@@ -156,73 +201,94 @@ class AutoInterface(Interface):
         gt += ":"+"{:02x}".format(g[9]+(g[8]<<8))
         gt += ":"+"{:02x}".format(g[11]+(g[10]<<8))
         gt += ":"+"{:02x}".format(g[13]+(g[12]<<8))
-        self.mcast_discovery_address = "ff1"+self.discovery_scope+":"+gt
+        self.mcast_discovery_address = "ff"+self.multicast_address_type+self.discovery_scope+":"+gt
 
         suitable_interfaces = 0
         for ifname in self.list_interfaces():
-            if RNS.vendor.platformutils.is_darwin() and ifname in AutoInterface.DARWIN_IGNORE_IFS and not ifname in self.allowed_interfaces:
-                RNS.log(str(self)+" skipping Darwin AWDL or tethering interface "+str(ifname), RNS.LOG_EXTREME)
-            elif RNS.vendor.platformutils.is_darwin() and ifname == "lo0":
-                RNS.log(str(self)+" skipping Darwin loopback interface "+str(ifname), RNS.LOG_EXTREME)
-            elif RNS.vendor.platformutils.is_android() and ifname in AutoInterface.ANDROID_IGNORE_IFS and not ifname in self.allowed_interfaces:
-                RNS.log(str(self)+" skipping Android system interface "+str(ifname), RNS.LOG_EXTREME)
-            elif ifname in self.ignored_interfaces:
-                RNS.log(str(self)+" ignoring disallowed interface "+str(ifname), RNS.LOG_EXTREME)
-            elif ifname in AutoInterface.ALL_IGNORE_IFS:
-                RNS.log(str(self)+" skipping interface "+str(ifname), RNS.LOG_EXTREME)
-            else:
-                if len(self.allowed_interfaces) > 0 and not ifname in self.allowed_interfaces:
-                    RNS.log(str(self)+" ignoring interface "+str(ifname)+" since it was not allowed", RNS.LOG_EXTREME)
+            try:
+                if RNS.vendor.platformutils.is_darwin() and ifname in AutoInterface.DARWIN_IGNORE_IFS and not ifname in self.allowed_interfaces:
+                    RNS.log(str(self)+" skipping Darwin AWDL or tethering interface "+str(ifname), RNS.LOG_EXTREME)
+                elif RNS.vendor.platformutils.is_darwin() and ifname == "lo0":
+                    RNS.log(str(self)+" skipping Darwin loopback interface "+str(ifname), RNS.LOG_EXTREME)
+                elif RNS.vendor.platformutils.is_android() and ifname in AutoInterface.ANDROID_IGNORE_IFS and not ifname in self.allowed_interfaces:
+                    RNS.log(str(self)+" skipping Android system interface "+str(ifname), RNS.LOG_EXTREME)
+                elif ifname in self.ignored_interfaces:
+                    RNS.log(str(self)+" ignoring disallowed interface "+str(ifname), RNS.LOG_EXTREME)
+                elif ifname in AutoInterface.ALL_IGNORE_IFS:
+                    RNS.log(str(self)+" skipping interface "+str(ifname), RNS.LOG_EXTREME)
                 else:
-                    addresses = self.list_addresses(ifname)
-                    if self.netinfo.AF_INET6 in addresses:
-                        link_local_addr = None
-                        for address in addresses[self.netinfo.AF_INET6]:
-                            if "addr" in address:
-                                if address["addr"].startswith("fe80:"):
-                                    link_local_addr = self.descope_linklocal(address["addr"])
-                                    self.link_local_addresses.append(link_local_addr)
-                                    self.adopted_interfaces[ifname] = link_local_addr
-                                    self.multicast_echoes[ifname] = time.time()
-                                    RNS.log(str(self)+" Selecting link-local address "+str(link_local_addr)+" for interface "+str(ifname), RNS.LOG_EXTREME)
+                    if len(self.allowed_interfaces) > 0 and not ifname in self.allowed_interfaces:
+                        RNS.log(str(self)+" ignoring interface "+str(ifname)+" since it was not allowed", RNS.LOG_EXTREME)
+                    else:
+                        addresses = self.list_addresses(ifname)
+                        if self.netinfo.AF_INET6 in addresses:
+                            link_local_addr = None
+                            for address in addresses[self.netinfo.AF_INET6]:
+                                if "addr" in address:
+                                    if address["addr"].startswith("fe80:"):
+                                        link_local_addr = self.descope_linklocal(address["addr"])
+                                        self.link_local_addresses.append(link_local_addr)
+                                        self.adopted_interfaces[ifname] = link_local_addr
+                                        self.multicast_echoes[ifname] = time.time()
+                                        nice_name = self.netinfo.interface_name_to_nice_name(ifname)
+                                        if nice_name != None and nice_name != ifname:
+                                            RNS.log(f"{self} Selecting link-local address {link_local_addr} for interface {nice_name} / {ifname}", RNS.LOG_EXTREME)
+                                        else:
+                                            RNS.log(f"{self} Selecting link-local address {link_local_addr} for interface {ifname}", RNS.LOG_EXTREME)
 
-                        if link_local_addr == None:
-                            RNS.log(str(self)+" No link-local IPv6 address configured for "+str(ifname)+", skipping interface", RNS.LOG_EXTREME)
-                        else:
-                            mcast_addr = self.mcast_discovery_address
-                            RNS.log(str(self)+" Creating multicast discovery listener on "+str(ifname)+" with address "+str(mcast_addr), RNS.LOG_EXTREME)
-
-                            # Struct with interface index
-                            if_struct = struct.pack("I", socket.if_nametoindex(ifname))
-
-                            # Set up multicast socket
-                            discovery_socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
-                            discovery_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-                            if hasattr(socket, "SO_REUSEPORT"):
-                                discovery_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
-                            discovery_socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, if_struct)
-
-                            # Join multicast group
-                            mcast_group = socket.inet_pton(socket.AF_INET6, mcast_addr) + if_struct
-                            discovery_socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mcast_group)
-
-                            # Bind socket
-                            if self.discovery_scope == AutoInterface.SCOPE_LINK:
-                                addr_info = socket.getaddrinfo(mcast_addr+"%"+ifname, self.discovery_port, socket.AF_INET6, socket.SOCK_DGRAM)
+                            if link_local_addr == None:
+                                RNS.log(str(self)+" No link-local IPv6 address configured for "+str(ifname)+", skipping interface", RNS.LOG_EXTREME)
                             else:
-                                addr_info = socket.getaddrinfo(mcast_addr, self.discovery_port, socket.AF_INET6, socket.SOCK_DGRAM)
+                                mcast_addr = self.mcast_discovery_address
+                                RNS.log(str(self)+" Creating multicast discovery listener on "+str(ifname)+" with address "+str(mcast_addr), RNS.LOG_EXTREME)
 
-                            discovery_socket.bind(addr_info[0][4])
+                                # Struct with interface index
+                                if_struct = struct.pack("I", self.interface_name_to_index(ifname))
 
-                            # Set up thread for discovery packets
-                            def discovery_loop():
-                                self.discovery_handler(discovery_socket, ifname)
+                                # Set up multicast socket
+                                discovery_socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
+                                discovery_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+                                if hasattr(socket, "SO_REUSEPORT"):
+                                    discovery_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
+                                discovery_socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, if_struct)
 
-                            thread = threading.Thread(target=discovery_loop)
-                            thread.daemon = True
-                            thread.start()
+                                # Join multicast group
+                                mcast_group = socket.inet_pton(socket.AF_INET6, mcast_addr) + if_struct
+                                discovery_socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mcast_group)
 
-                            suitable_interfaces += 1
+                                # Bind socket
+                                if RNS.vendor.platformutils.is_windows():
+
+                                    # window throws "[WinError 10049] The requested address is not valid in its context"
+                                    # when trying to use the multicast address as host, or when providing interface index
+                                    # passing an empty host appears to work, but probably not exactly how we want it to...
+                                    discovery_socket.bind(('', self.discovery_port))
+
+                                else:
+
+                                    if self.discovery_scope == AutoInterface.SCOPE_LINK:
+                                        addr_info = socket.getaddrinfo(mcast_addr+"%"+ifname, self.discovery_port, socket.AF_INET6, socket.SOCK_DGRAM)
+                                    else:
+                                        addr_info = socket.getaddrinfo(mcast_addr, self.discovery_port, socket.AF_INET6, socket.SOCK_DGRAM)
+
+                                    discovery_socket.bind(addr_info[0][4])
+
+                                # Set up thread for discovery packets
+                                def discovery_loop():
+                                    self.discovery_handler(discovery_socket, ifname)
+
+                                thread = threading.Thread(target=discovery_loop)
+                                thread.daemon = True
+                                thread.start()
+
+                                suitable_interfaces += 1
+
+            except Exception as e:
+                nice_name = self.netinfo.interface_name_to_nice_name(ifname)
+                if nice_name != None and nice_name != ifname:
+                    RNS.log(f"Could not configure the system interface {nice_name} / {ifname} for use with {self}, skipping it. The contained exception was: {e}", RNS.LOG_ERROR)
+                else:
+                    RNS.log(f"Could not configure the system interface {ifname} for use with {self}, skipping it. The contained exception was: {e}", RNS.LOG_ERROR)
 
         if suitable_interfaces == 0:
             RNS.log(str(self)+" could not autoconfigure. This interface currently provides no connectivity.", RNS.LOG_WARNING)
@@ -234,32 +300,31 @@ class AutoInterface(Interface):
             else:
                 self.bitrate = AutoInterface.BITRATE_GUESS
 
-            peering_wait = self.announce_interval*1.2
-            RNS.log(str(self)+" discovering peers for "+str(round(peering_wait, 2))+" seconds...", RNS.LOG_VERBOSE)
+    def final_init(self):
+        peering_wait = self.announce_interval*1.2
+        RNS.log(str(self)+" discovering peers for "+str(round(peering_wait, 2))+" seconds...", RNS.LOG_VERBOSE)
 
-            self.owner = owner
-            socketserver.UDPServer.address_family = socket.AF_INET6
+        socketserver.UDPServer.address_family = socket.AF_INET6
 
-            for ifname in self.adopted_interfaces:
-                local_addr = self.adopted_interfaces[ifname]+"%"+ifname
-                addr_info = socket.getaddrinfo(local_addr, self.data_port, socket.AF_INET6, socket.SOCK_DGRAM)
-                address = addr_info[0][4]
+        for ifname in self.adopted_interfaces:
+            local_addr = self.adopted_interfaces[ifname]+"%"+str(self.interface_name_to_index(ifname))
+            addr_info = socket.getaddrinfo(local_addr, self.data_port, socket.AF_INET6, socket.SOCK_DGRAM)
+            address = addr_info[0][4]
 
-                udp_server = socketserver.UDPServer(address, self.handler_factory(self.processIncoming))
-                self.interface_servers[ifname] = udp_server
-                
-                thread = threading.Thread(target=udp_server.serve_forever)
-                thread.daemon = True
-                thread.start()
+            udp_server = socketserver.UDPServer(address, self.handler_factory(self.process_incoming))
+            self.interface_servers[ifname] = udp_server
+            
+            thread = threading.Thread(target=udp_server.serve_forever)
+            thread.daemon = True
+            thread.start()
 
-            job_thread = threading.Thread(target=self.peer_jobs)
-            job_thread.daemon = True
-            job_thread.start()
+        job_thread = threading.Thread(target=self.peer_jobs)
+        job_thread.daemon = True
+        job_thread.start()
 
-            time.sleep(peering_wait)
-
-            self.online = True
+        time.sleep(peering_wait)
 
+        self.online = True
 
     def discovery_handler(self, socket, ifname):
         def announce_loop():
@@ -271,8 +336,9 @@ class AutoInterface(Interface):
         
         while True:
             data, ipv6_src = socket.recvfrom(1024)
+            peering_hash = data[:RNS.Identity.HASHLENGTH//8]
             expected_hash = RNS.Identity.full_hash(self.group_id+ipv6_src[0].encode("utf-8"))
-            if data == expected_hash:
+            if peering_hash == expected_hash:
                 self.add_peer(ipv6_src[0], ifname)
             else:
                 RNS.log(str(self)+" received peering packet on "+str(ifname)+" from "+str(ipv6_src[0])+", but authentication hash was incorrect.", RNS.LOG_DEBUG)
@@ -293,6 +359,10 @@ class AutoInterface(Interface):
             # Remove any timed out peers
             for peer_addr in timed_out_peers:
                 removed_peer = self.peers.pop(peer_addr)
+                if peer_addr in self.spawned_interfaces:
+                    spawned_interface = self.spawned_interfaces[peer_addr]
+                    spawned_interface.detach()
+                    spawned_interface.teardown()
                 RNS.log(str(self)+" removed peer "+str(peer_addr)+" on "+str(removed_peer[0]), RNS.LOG_DEBUG)
 
             for ifname in self.adopted_interfaces:
@@ -327,7 +397,7 @@ class AutoInterface(Interface):
 
                                         RNS.log("Starting new UDP listener for "+str(self)+" "+str(ifname), RNS.LOG_DEBUG)
 
-                                        udp_server = socketserver.UDPServer(listen_address, self.handler_factory(self.processIncoming))
+                                        udp_server = socketserver.UDPServer(listen_address, self.handler_factory(self.process_incoming))
                                         self.interface_servers[ifname] = udp_server
 
                                         thread = threading.Thread(target=udp_server.serve_forever)
@@ -368,7 +438,7 @@ class AutoInterface(Interface):
             announce_socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
             addr_info = socket.getaddrinfo(self.mcast_discovery_address, self.discovery_port, socket.AF_INET6, socket.SOCK_DGRAM)
 
-            ifis = struct.pack("I", socket.if_nametoindex(ifname))
+            ifis = struct.pack("I", self.interface_name_to_index(ifname))
             announce_socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, ifis)
             announce_socket.sendto(discovery_token, addr_info[0][4])
             announce_socket.close()
@@ -379,6 +449,10 @@ class AutoInterface(Interface):
             else:
                 pass
 
+    @property
+    def peer_count(self):
+        return len(self.spawned_interfaces)
+
     def add_peer(self, addr, ifname):
         if addr in self.link_local_addresses:
             ifname = None
@@ -394,53 +468,151 @@ class AutoInterface(Interface):
         else:
             if not addr in self.peers:
                 self.peers[addr] = [ifname, time.time()]
+
+                spawned_interface = AutoInterfacePeer(self, addr, ifname)
+                spawned_interface.OUT = self.OUT
+                spawned_interface.IN  = self.IN
+                spawned_interface.parent_interface = self
+                spawned_interface.bitrate = self.bitrate
+                
+                spawned_interface.ifac_size = self.ifac_size
+                spawned_interface.ifac_netname = self.ifac_netname
+                spawned_interface.ifac_netkey = self.ifac_netkey
+                if spawned_interface.ifac_netname != None or spawned_interface.ifac_netkey != None:
+                    ifac_origin = b""
+                    if spawned_interface.ifac_netname != None:
+                        ifac_origin += RNS.Identity.full_hash(spawned_interface.ifac_netname.encode("utf-8"))
+                    if spawned_interface.ifac_netkey != None:
+                        ifac_origin += RNS.Identity.full_hash(spawned_interface.ifac_netkey.encode("utf-8"))
+
+                    ifac_origin_hash = RNS.Identity.full_hash(ifac_origin)
+                    spawned_interface.ifac_key = RNS.Cryptography.hkdf(
+                        length=64,
+                        derive_from=ifac_origin_hash,
+                        salt=RNS.Reticulum.IFAC_SALT,
+                        context=None
+                    )
+                    spawned_interface.ifac_identity = RNS.Identity.from_bytes(spawned_interface.ifac_key)
+                    spawned_interface.ifac_signature = spawned_interface.ifac_identity.sign(RNS.Identity.full_hash(spawned_interface.ifac_key))
+
+                spawned_interface.announce_rate_target = self.announce_rate_target
+                spawned_interface.announce_rate_grace = self.announce_rate_grace
+                spawned_interface.announce_rate_penalty = self.announce_rate_penalty
+                spawned_interface.mode = self.mode
+                spawned_interface.HW_MTU = self.HW_MTU
+                spawned_interface.online = True
+                RNS.Transport.interfaces.append(spawned_interface)
+                if addr in self.spawned_interfaces:
+                    self.spawned_interfaces[addr].detach()
+                    self.spawned_interfaces[addr].teardown()
+                    self.spawned_interfaces.pop(spawned_interface)
+                self.spawned_interfaces[addr] = spawned_interface
+
                 RNS.log(str(self)+" added peer "+str(addr)+" on "+str(ifname), RNS.LOG_DEBUG)
             else:
                 self.refresh_peer(addr)
 
     def refresh_peer(self, addr):
-        self.peers[addr][1] = time.time()
+        try:
+            self.peers[addr][1] = time.time()
+        except Exception as e:
+            RNS.log(f"An error occurred while refreshing peer {addr} on {self}: {e}", RNS.LOG_ERROR)
 
-    def processIncoming(self, data):
-        data_hash = RNS.Identity.full_hash(data)
-        deque_hit = False
-        if data_hash in self.mif_deque:
-            for te in self.mif_deque_times:
-                if te[0] == data_hash and time.time() < te[1]+AutoInterface.MULTI_IF_DEQUE_TTL:
-                    deque_hit = True
-                    break
+    def process_incoming(self, data, addr=None):
+        if self.online and addr in self.spawned_interfaces:
+            self.spawned_interfaces[addr].process_incoming(data, addr)
 
-        if not deque_hit:
-            self.mif_deque.append(data_hash)
-            self.mif_deque_times.append([data_hash, time.time()])
-            self.rxb += len(data)
-            self.owner.inbound(data, self)
-
-    def processOutgoing(self,data):
-            for peer in self.peers:
-                try:
-                    if self.outbound_udp_socket == None:
-                        self.outbound_udp_socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
-                    
-                    peer_addr = str(peer)+"%"+str(self.peers[peer][0])
-                    addr_info = socket.getaddrinfo(peer_addr, self.data_port, socket.AF_INET6, socket.SOCK_DGRAM)
-                    self.outbound_udp_socket.sendto(data, addr_info[0][4])
-
-                except Exception as e:
-                    RNS.log("Could not transmit on "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
-
-            
-            self.txb += len(data)
-            
+    def process_outgoing(self,data):
+        pass
 
     # Until per-device sub-interfacing is implemented,
     # ingress limiting should be disabled on AutoInterface
     def should_ingress_limit(self):
         return False
 
+    def detach(self):
+        self.online = False
+
     def __str__(self):
         return "AutoInterface["+self.name+"]"
 
+class AutoInterfacePeer(Interface):
+
+    def __init__(self, owner, addr, ifname):
+        super().__init__()
+        self.owner = owner
+        self.parent_interface = owner
+        self.addr = addr
+        self.ifname = ifname
+        self.peer_addr = None
+        self.addr_info = None
+        self.HW_MTU = self.owner.HW_MTU
+        self.FIXED_MTU = self.owner.FIXED_MTU
+
+    def __str__(self):
+        return f"AutoInterfacePeer[{self.ifname}/{self.addr}]"
+
+    def process_incoming(self, data, addr=None):
+        if self.online and self.owner.online:
+            data_hash = RNS.Identity.full_hash(data)
+            deque_hit = False
+            if data_hash in self.owner.mif_deque:
+                for te in self.owner.mif_deque_times:
+                    if te[0] == data_hash and time.time() < te[1]+AutoInterface.MULTI_IF_DEQUE_TTL:
+                        deque_hit = True
+                        break
+
+            if not deque_hit:
+                self.owner.refresh_peer(self.addr)
+                self.owner.mif_deque.append(data_hash)
+                self.owner.mif_deque_times.append([data_hash, time.time()])
+                self.rxb += len(data)
+                self.owner.rxb += len(data)
+                self.owner.owner.inbound(data, self)
+
+    def process_outgoing(self, data):
+        if self.online:
+            with self.owner.write_lock:
+                try:
+                    if self.owner.outbound_udp_socket == None: self.owner.outbound_udp_socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
+                    if self.peer_addr == None: self.peer_addr = str(self.addr)+"%"+str(self.owner.interface_name_to_index(self.ifname))
+                    if self.addr_info == None: self.addr_info = socket.getaddrinfo(self.peer_addr, self.owner.data_port, socket.AF_INET6, socket.SOCK_DGRAM)
+                    self.owner.outbound_udp_socket.sendto(data, self.addr_info[0][4])
+                    self.txb += len(data)
+                    self.owner.txb += len(data)
+                except Exception as e:
+                    RNS.log("Could not transmit on "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
+
+    def detach(self):
+        self.online = False
+        self.detached = True
+        
+    def teardown(self):
+        if not self.detached:
+            RNS.log("The interface "+str(self)+" experienced an unrecoverable error and is being torn down.", RNS.LOG_ERROR)
+            if RNS.Reticulum.panic_on_interface_error:
+                RNS.panic()
+
+        else:
+            RNS.log("The interface "+str(self)+" is being torn down.", RNS.LOG_VERBOSE)
+
+        self.online = False
+        self.OUT = False
+        self.IN = False
+
+        if self.addr in self.owner.spawned_interfaces:
+            try: self.owner.spawned_interfaces.pop(self.addr)
+            except Exception as e:
+                RNS.log(f"Could not remove {self} from parent interface on detach. The contained exception was: {e}", RNS.LOG_ERROR)
+
+        if self in RNS.Transport.interfaces:
+            RNS.Transport.interfaces.remove(self)
+
+    # Until per-device sub-interfacing is implemented,
+    # ingress limiting should be disabled on AutoInterface
+    def should_ingress_limit(self):
+        return False
+
 class AutoInterfaceHandler(socketserver.BaseRequestHandler):
     def __init__(self, callback, *args, **keys):
         self.callback = callback
@@ -448,4 +620,5 @@ class AutoInterfaceHandler(socketserver.BaseRequestHandler):
 
     def handle(self):
         data = self.request[0]
-        self.callback(data)
+        addr = self.client_address[0]
+        self.callback(data, addr)

RNS/Interfaces/BackboneInterface.py

@@ -0,0 +1,691 @@
+# Reticulum License
+#
+# Copyright (c) 2016-2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from RNS.Interfaces.Interface import Interface
+import threading
+import socket
+import select
+import time
+import sys
+import os
+import RNS
+
+class HDLC():
+    FLAG              = 0x7E
+    ESC               = 0x7D
+    ESC_MASK          = 0x20
+
+    @staticmethod
+    def escape(data):
+        data = data.replace(bytes([HDLC.ESC]), bytes([HDLC.ESC, HDLC.ESC^HDLC.ESC_MASK]))
+        data = data.replace(bytes([HDLC.FLAG]), bytes([HDLC.ESC, HDLC.FLAG^HDLC.ESC_MASK]))
+        return data
+
+class BackboneInterface(Interface):
+    HW_MTU            = 1048576
+    BITRATE_GUESS     = 1_000_000_000
+    DEFAULT_IFAC_SIZE = 16
+    AUTOCONFIGURE_MTU = True
+
+    epoll = None
+    listener_filenos = {}
+    spawned_interface_filenos = {}
+    epoll = None
+    _job_active = False
+    _job_lock = threading.Lock()
+
+    @staticmethod
+    def get_address_for_if(name, bind_port, prefer_ipv6=False):
+        from RNS.Interfaces import netinfo
+        ifaddr = netinfo.ifaddresses(name)
+        if len(ifaddr) < 1:
+            raise SystemError(f"No addresses available on specified kernel interface \"{name}\" for BackboneInterface to bind to")
+
+        if (prefer_ipv6 or not netinfo.AF_INET in ifaddr) and netinfo.AF_INET6 in ifaddr:
+            bind_ip = ifaddr[netinfo.AF_INET6][0]["addr"]
+            if bind_ip.lower().startswith("fe80::"):
+                # We'll need to add the interface as scope for link-local addresses
+                return BackboneInterface.get_address_for_host(f"{bind_ip}%{name}", bind_port, prefer_ipv6)
+            else:
+                return BackboneInterface.get_address_for_host(bind_ip, bind_port, prefer_ipv6)
+        elif netinfo.AF_INET in ifaddr:
+            bind_ip = ifaddr[netinfo.AF_INET][0]["addr"]
+            return (bind_ip, bind_port)
+        else:
+            raise SystemError(f"No addresses available on specified kernel interface \"{name}\" for BackboneInterface to bind to")
+
+    @staticmethod
+    def get_address_for_host(name, bind_port, prefer_ipv6=False):
+        address_infos = socket.getaddrinfo(name, bind_port, proto=socket.IPPROTO_TCP)
+        address_info  = address_infos[0]
+        for entry in address_infos:
+            if prefer_ipv6 and entry[0] == socket.AF_INET6:
+                address_info = entry; break
+            elif not prefer_ipv6 and entry[0] == socket.AF_INET:
+                address_info = entry; break
+
+        if address_info[0] == socket.AF_INET6:
+            return (name, bind_port, address_info[4][2], address_info[4][3])
+        elif address_info[0] == socket.AF_INET:
+            return (name, bind_port)
+        else:
+            raise SystemError(f"No suitable kernel interface available for address \"{name}\" for BackboneInterface to bind to")
+
+
+    @property
+    def clients(self):
+        return len(self.spawned_interfaces)
+
+    def __init__(self, owner, configuration):
+        if not RNS.vendor.platformutils.is_linux() and not RNS.vendor.platformutils.is_android():
+            raise OSError("BackboneInterface is only supported on Linux-based operating systems")
+
+        super().__init__()
+
+        c            = Interface.get_config_obj(configuration)
+        name         = c["name"]
+        device       = c["device"] if "device" in c else None
+        port         = int(c["port"]) if "port" in c else None
+        bindip       = c["listen_ip"] if "listen_ip" in c else None
+        bindport     = int(c["listen_port"]) if "listen_port" in c else None
+        prefer_ipv6  = c.as_bool("prefer_ipv6") if "prefer_ipv6" in c else False
+
+        if port != None: bindport = port
+
+        self.HW_MTU = BackboneInterface.HW_MTU
+        self.online = False
+        self.IN  = True
+        self.OUT = False
+        self.name = name
+        self.detached = False
+        self.mode = RNS.Interfaces.Interface.Interface.MODE_FULL
+        self.spawned_interfaces = []
+
+        if bindport == None:
+            raise SystemError(f"No TCP port configured for interface \"{name}\"")
+        else:
+            self.bind_port = bindport
+
+        bind_address = None
+        if device != None:
+            bind_address = self.get_address_for_if(device, self.bind_port, prefer_ipv6)
+        else:
+            if bindip == None:
+                raise SystemError(f"No TCP bind IP configured for interface \"{name}\"")
+            bind_address = self.get_address_for_host(bindip, self.bind_port, prefer_ipv6)
+
+        if bind_address != None:
+            self.receives = True
+            self.bind_ip = bind_address[0]
+            self.owner = owner
+
+            if len(bind_address) == 2  : BackboneInterface.add_listener(self, bind_address, socket_type=socket.AF_INET)
+            elif len(bind_address) == 4: BackboneInterface.add_listener(self, bind_address, socket_type=socket.AF_INET6)
+
+            self.bitrate = self.BITRATE_GUESS
+            self.online = True
+
+        else:
+            raise SystemError("Insufficient parameters to create listener")
+
+    @staticmethod
+    def start():
+        if not BackboneInterface._job_active: threading.Thread(target=BackboneInterface.__job, daemon=True).start()
+
+    @staticmethod
+    def ensure_epoll():
+        if not BackboneInterface.epoll: BackboneInterface.epoll = select.epoll()
+
+    @staticmethod
+    def add_listener(interface, bind_address, socket_type=socket.AF_INET):
+        BackboneInterface.ensure_epoll()
+        if socket_type == socket.AF_INET:
+            server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+            server_socket.bind(bind_address)
+        elif socket_type == socket.AF_INET6:
+            server_socket = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
+            server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+            server_socket.bind(bind_address)
+        elif socket_type == socket.AF_UNIX:
+            server_socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+            server_socket.bind(bind_address)
+        else: raise TypeError(f"Invalid socket type {socket_type} for {interface}")
+
+        server_socket.listen(1)
+        server_socket.setblocking(0)
+        BackboneInterface.listener_filenos[server_socket.fileno()] = (interface, server_socket)
+        BackboneInterface.epoll.register(server_socket.fileno(), select.EPOLLIN)
+        BackboneInterface.start()
+
+    @staticmethod
+    def add_client_socket(client_socket, interface):
+        BackboneInterface.ensure_epoll()
+        BackboneInterface.spawned_interface_filenos[client_socket.fileno()] = interface
+        BackboneInterface.register_in(client_socket.fileno())
+        BackboneInterface.start()
+
+    @staticmethod
+    def register_in(fileno):
+        if fileno < 0:
+            RNS.log(f"Attempt to register invalid file descriptor {fileno}", RNS.LOG_ERROR)
+            return
+
+        try: BackboneInterface.epoll.register(fileno, select.EPOLLIN)
+        except Exception as e:
+            RNS.log(f"An error occurred while registering EPOLL_IN for file descriptor {fileno}: {e}", RNS.LOG_ERROR)
+
+    @staticmethod
+    def deregister_fileno(fileno):
+        if fileno < 0:
+            RNS.log(f"Attempt to deregister invalid file descriptor {fileno}", RNS.LOG_ERROR)
+            return
+
+        try: BackboneInterface.epoll.unregister(fileno)
+        except Exception as e:
+            RNS.log(f"An error occurred while deregistering file descriptor {fileno}: {e}", RNS.LOG_DEBUG)
+
+    @staticmethod
+    def deregister_listeners():
+        for fileno in BackboneInterface.listener_filenos:
+            owner_interface, server_socket = BackboneInterface.listener_filenos[fileno]
+            fileno = server_socket.fileno()
+            BackboneInterface.deregister_fileno(fileno)
+            server_socket.close()
+
+        BackboneInterface.listener_filenos.clear()
+
+    @staticmethod
+    def tx_ready(interface):
+        if interface.socket:
+            fileno = interface.socket.fileno()
+            if fileno in BackboneInterface.spawned_interface_filenos:
+                try:
+                    BackboneInterface.epoll.modify(interface.socket.fileno(), select.EPOLLOUT)
+                except Exception as e:
+                    RNS.trace_exception(e)
+
+    @staticmethod
+    def __job():
+        with BackboneInterface._job_lock:
+            if BackboneInterface._job_active: return
+            else:
+                BackboneInterface._job_active = True
+                BackboneInterface.ensure_epoll()
+                try:
+                    while True:
+                        events = BackboneInterface.epoll.poll(1)
+                        for fileno, event in BackboneInterface.epoll.poll(1):
+                            if fileno in BackboneInterface.spawned_interface_filenos:
+                                spawned_interface = BackboneInterface.spawned_interface_filenos[fileno]
+                                client_socket = spawned_interface.socket
+                                if client_socket and fileno == client_socket.fileno() and (event & select.EPOLLIN):
+                                    try: received_bytes = client_socket.recv(spawned_interface.HW_MTU)
+                                    except Exception as e:
+                                        RNS.log(f"Error while reading from {spawned_interface}: {e}", RNS.LOG_DEBUG)
+                                        received_bytes = b""
+
+                                    if len(received_bytes): spawned_interface.receive(received_bytes)
+                                    else:
+                                        BackboneInterface.deregister_fileno(fileno); client_socket.close()
+                                        try:
+                                            if fileno in BackboneInterface.spawned_interface_filenos: BackboneInterface.spawned_interface_filenos.pop(fileno)
+                                        except Exception as e: RNS.log(f"Error while removing spawned interface file descriptor from BackboneInterface I/O handler: {e}", RNS.LOG_ERROR)
+
+                                        try:
+                                            if spawned_interface.parent_interface:
+                                                pif = spawned_interface.parent_interface
+                                                if pif.spawned_interfaces != None:
+                                                    while spawned_interface in pif.spawned_interfaces: pif.spawned_interfaces.remove(spawned_interface)
+                                        except Exception as e: RNS.log(f"Error while removing spawned interface from {pif}: {e}", RNS.LOG_ERROR)
+
+                                        spawned_interface.receive(received_bytes)
+                                
+                                elif client_socket and fileno == client_socket.fileno() and (event & select.EPOLLOUT):
+                                    try:
+                                        written = client_socket.send(spawned_interface.transmit_buffer)
+                                    except Exception as e:
+                                        written = 0
+                                        if not spawned_interface.detached: RNS.log(f"Error while writing to {spawned_interface}: {e}", RNS.LOG_DEBUG)
+                                        BackboneInterface.deregister_fileno(fileno)
+
+                                        try:
+                                            if fileno in BackboneInterface.spawned_interface_filenos: BackboneInterface.spawned_interface_filenos.pop(fileno)
+                                        except Exception as e: RNS.log(f"Error while removing spawned interface file descriptor from BackboneInterface I/O handler: {e}", RNS.LOG_ERROR)
+                                        
+                                        try:
+                                            if spawned_interface.parent_interface:
+                                                pif = spawned_interface.parent_interface
+                                                if pif.spawned_interfaces != None:
+                                                    while spawned_interface in pif.spawned_interfaces: pif.spawned_interfaces.remove(spawned_interface)
+                                        except Exception as e: RNS.log(f"Error while removing spawned interface from {pif}: {e}", RNS.LOG_ERROR)
+
+                                        try: client_socket.close()
+                                        except Exception as e: RNS.log(f"Error while closing socket for {spawned_interface}: {e}", RNS.LOG_ERROR)
+                                        spawned_interface.receive(b"")
+
+                                    spawned_interface.transmit_buffer = spawned_interface.transmit_buffer[written:]
+                                    if len(spawned_interface.transmit_buffer) == 0: BackboneInterface.epoll.modify(fileno, select.EPOLLIN)
+                                    spawned_interface.txb += written
+                                    if spawned_interface.parent_interface: spawned_interface.parent_interface.txb += written
+                                
+                                elif client_socket and fileno == client_socket.fileno() and event & (select.EPOLLHUP):
+                                    BackboneInterface.deregister_fileno(fileno)
+                                    try:
+                                        if fileno in BackboneInterface.spawned_interface_filenos: BackboneInterface.spawned_interface_filenos.pop(fileno)
+                                    except Exception as e: RNS.log(f"Error while removing spawned interface file descriptor from BackboneInterface I/O handler: {e}", RNS.LOG_ERROR)
+
+                                    try:
+                                        if spawned_interface.parent_interface:
+                                            pif = spawned_interface.parent_interface
+                                            if pif.spawned_interfaces != None:
+                                                while spawned_interface in pif.spawned_interfaces: pif.spawned_interfaces.remove(spawned_interface)
+                                    except Exception as e: RNS.log(f"Error while removing spawned interface from {pif}: {e}", RNS.LOG_ERROR)
+
+                                    try: client_socket.close()
+                                    except Exception as e: RNS.log(f"Error while closing socket for {spawned_interface}: {e}", RNS.LOG_ERROR)
+                                    spawned_interface.receive(b"")
+
+                            elif fileno in BackboneInterface.listener_filenos:
+                                owner_interface, server_socket = BackboneInterface.listener_filenos[fileno]
+                                if fileno == server_socket.fileno() and (event & select.EPOLLIN):
+                                    client_socket, address = server_socket.accept()
+                                    client_socket.setblocking(0)
+                                    if not owner_interface.incoming_connection(client_socket):
+                                        try: client_socket.close()
+                                        except Exception as e: RNS.log(f"Error while closing socket for failed incoming connection: {e}", RNS.LOG_ERROR)
+                                
+                                elif fileno == server_socket.fileno() and (event & select.EPOLLHUP):
+                                    try: BackboneInterface.deregister_fileno(fileno)
+                                    except Exception as e: RNS.log(f"Error while deregistering listener file descriptor {fileno}: {e}", RNS.LOG_ERROR)
+
+                                    try: server_socket.close()
+                                    except Exception as e: RNS.log(f"Error while closing listener socket for {server_socket}: {e}", RNS.LOG_ERROR)
+
+                except Exception as e:
+                    RNS.log(f"BackboneInterface error: {e}", RNS.LOG_ERROR)
+                    RNS.trace_exception(e)
+
+                finally:
+                    BackboneInterface.deregister_listeners()
+    
+    def incoming_connection(self, socket):
+        RNS.log("Accepting incoming connection", RNS.LOG_VERBOSE)
+        try:
+            spawned_configuration = {"name": "Client on "+self.name, "target_host": None, "target_port": None}
+            spawned_interface = BackboneClientInterface(self.owner, spawned_configuration, connected_socket=socket)
+            spawned_interface.OUT = self.OUT
+            spawned_interface.IN  = self.IN
+            spawned_interface.socket = socket
+            spawned_interface.target_ip = socket.getpeername()[0]
+            spawned_interface.target_port = str(socket.getpeername()[1])
+            spawned_interface.parent_interface = self
+            spawned_interface.bitrate = self.bitrate
+            spawned_interface.optimise_mtu()
+            
+            spawned_interface.ifac_size = self.ifac_size
+            spawned_interface.ifac_netname = self.ifac_netname
+            spawned_interface.ifac_netkey = self.ifac_netkey
+            if spawned_interface.ifac_netname != None or spawned_interface.ifac_netkey != None:
+                ifac_origin = b""
+                if spawned_interface.ifac_netname != None:
+                    ifac_origin += RNS.Identity.full_hash(spawned_interface.ifac_netname.encode("utf-8"))
+                if spawned_interface.ifac_netkey != None:
+                    ifac_origin += RNS.Identity.full_hash(spawned_interface.ifac_netkey.encode("utf-8"))
+
+                ifac_origin_hash = RNS.Identity.full_hash(ifac_origin)
+                spawned_interface.ifac_key = RNS.Cryptography.hkdf(
+                    length=64,
+                    derive_from=ifac_origin_hash,
+                    salt=RNS.Reticulum.IFAC_SALT,
+                    context=None
+                )
+                spawned_interface.ifac_identity = RNS.Identity.from_bytes(spawned_interface.ifac_key)
+                spawned_interface.ifac_signature = spawned_interface.ifac_identity.sign(RNS.Identity.full_hash(spawned_interface.ifac_key))
+
+            spawned_interface.announce_rate_target = self.announce_rate_target
+            spawned_interface.announce_rate_grace = self.announce_rate_grace
+            spawned_interface.announce_rate_penalty = self.announce_rate_penalty
+            spawned_interface.mode = self.mode
+            spawned_interface.HW_MTU = self.HW_MTU
+            spawned_interface.online = True
+            RNS.log("Spawned new BackboneClient Interface: "+str(spawned_interface), RNS.LOG_VERBOSE)
+            RNS.Transport.interfaces.append(spawned_interface)
+            while spawned_interface in self.spawned_interfaces: self.spawned_interfaces.remove(spawned_interface)
+            self.spawned_interfaces.append(spawned_interface)
+            BackboneInterface.add_client_socket(socket, spawned_interface)
+
+        except Exception as e:
+            RNS.log(f"An error occurred while accepting incoming connection on {self}: {e}", RNS.LOG_ERROR)
+            return False
+
+        return True
+
+    def received_announce(self, from_spawned=False):
+        if from_spawned: self.ia_freq_deque.append(time.time())
+
+    def sent_announce(self, from_spawned=False):
+        if from_spawned: self.oa_freq_deque.append(time.time())
+
+    def process_outgoing(self, data):
+        pass
+
+    def detach(self):
+        self.detached = True
+        self.online = False
+        detached = []
+        for fileno in BackboneInterface.listener_filenos:
+            owner_interface, listener_socket = BackboneInterface.listener_filenos[fileno]
+            if owner_interface == self:
+                if hasattr(listener_socket, "shutdown"):
+                    if callable(listener_socket.shutdown):
+                        try: listener_socket.shutdown(socket.SHUT_RDWR)
+                        except Exception as e: RNS.log("Error while shutting down socket for "+str(self)+": "+str(e), RNS.LOG_ERROR)
+
+    def __str__(self):
+        if ":" in self.bind_ip:
+            ip_str = f"[{self.bind_ip}]"
+        else:
+            ip_str = f"{self.bind_ip}"
+
+        return "BackboneInterface["+self.name+"/"+ip_str+":"+str(self.bind_port)+"]"
+
+
+class BackboneClientInterface(Interface):
+    BITRATE_GUESS = 100_000_000
+    DEFAULT_IFAC_SIZE = 16
+    AUTOCONFIGURE_MTU = True
+
+    RECONNECT_WAIT = 5
+    RECONNECT_MAX_TRIES = None
+
+    # TCP socket options
+    TCP_USER_TIMEOUT = 24
+    TCP_PROBE_AFTER = 5
+    TCP_PROBE_INTERVAL = 2
+    TCP_PROBES = 12
+
+    INITIAL_CONNECT_TIMEOUT = 5
+    SYNCHRONOUS_START = True
+
+    def __init__(self, owner, configuration, connected_socket=None):
+        super().__init__()
+
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        target_ip = c["target_host"] if "target_host" in c and c["target_host"] != None else None
+        target_port = int(c["target_port"]) if "target_port" in c and c["target_host"] != None else None
+        i2p_tunneled = c.as_bool("i2p_tunneled") if "i2p_tunneled" in c else False
+        connect_timeout = c.as_int("connect_timeout") if "connect_timeout" in c else None
+        max_reconnect_tries = c.as_int("max_reconnect_tries") if "max_reconnect_tries" in c else None
+        prefer_ipv6  = c.as_bool("prefer_ipv6") if "prefer_ipv6" in c else False
+        
+        self.HW_MTU           = BackboneInterface.HW_MTU
+        self.IN               = True
+        self.OUT              = False
+        self.socket           = None
+        self.parent_interface = None
+        self.name             = name
+        self.initiator        = False
+        self.reconnecting     = False
+        self.never_connected  = True
+        self.owner            = owner
+        self.online           = False
+        self.detached         = False
+        self.prefer_ipv6      = prefer_ipv6
+        self.i2p_tunneled     = i2p_tunneled
+        self.mode             = RNS.Interfaces.Interface.Interface.MODE_FULL
+        self.bitrate          = BackboneClientInterface.BITRATE_GUESS
+        self.frame_buffer     = b""
+        self.transmit_buffer  = b""
+        
+        if max_reconnect_tries == None:
+            self.max_reconnect_tries = BackboneClientInterface.RECONNECT_MAX_TRIES
+        else:
+            self.max_reconnect_tries = max_reconnect_tries
+
+        if connected_socket != None:
+            self.receives    = True
+            self.target_ip   = None
+            self.target_port = None
+            self.socket      = connected_socket
+
+            self.set_timeouts_linux()
+            self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+
+        elif target_ip != None and target_port != None:
+            self.receives    = True
+            self.target_ip   = target_ip
+            self.target_port = target_port
+            self.initiator   = True
+
+            if connect_timeout != None:
+                self.connect_timeout = connect_timeout
+            else:
+                self.connect_timeout = BackboneClientInterface.INITIAL_CONNECT_TIMEOUT
+            
+            if BackboneClientInterface.SYNCHRONOUS_START:
+                self.initial_connect()
+            else:
+                thread = threading.Thread(target=self.initial_connect)
+                thread.daemon = True
+                thread.start()
+            
+    def initial_connect(self):
+        if not self.connect(initial=True):
+            thread = threading.Thread(target=self.reconnect)
+            thread.daemon = True
+            thread.start()
+        else:
+            self.wants_tunnel = True
+
+    def set_timeouts_linux(self):
+        self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_USER_TIMEOUT, int(BackboneClientInterface.TCP_USER_TIMEOUT * 1000))
+        self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
+        self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, int(BackboneClientInterface.TCP_PROBE_AFTER))
+        self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, int(BackboneClientInterface.TCP_PROBE_INTERVAL))
+        self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, int(BackboneClientInterface.TCP_PROBES))
+
+    def detach(self):
+        self.online = False
+        if self.socket != None:
+            if hasattr(self.socket, "close"):
+                if callable(self.socket.close):
+                    self.detached = True
+                    
+                    try:
+                        if self.socket != None: self.socket.shutdown(socket.SHUT_RDWR)
+                    except Exception as e: RNS.log("Error while shutting down socket for "+str(self)+": "+str(e), RNS.LOG_ERROR)
+
+                    try:
+                        if self.socket != None: self.socket.close()
+                    except Exception as e: RNS.log("Error while closing socket for "+str(self)+": "+str(e), RNS.LOG_ERROR)
+
+                    self.socket = None
+
+    def connect(self, initial=False):
+        try:
+            if initial:
+                RNS.log("Establishing TCP connection for "+str(self)+"...", RNS.LOG_DEBUG)
+
+            address_infos = socket.getaddrinfo(self.target_ip, self.target_port, proto=socket.IPPROTO_TCP)
+            address_info  = address_infos[0]
+            for entry in address_infos:
+                if self.prefer_ipv6 and entry[0] == socket.AF_INET6:
+                    address_info = entry; break
+                elif not self.prefer_ipv6 and entry[0] == socket.AF_INET:
+                    address_info = entry; break
+
+            address_family = address_info[0]
+            target_address = address_info[4]
+
+            self.socket = socket.socket(address_family, socket.SOCK_STREAM)
+            self.socket.settimeout(BackboneClientInterface.INITIAL_CONNECT_TIMEOUT)
+            self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+            self.socket.connect(target_address)
+            self.socket.settimeout(None)
+
+            BackboneInterface.add_client_socket(self.socket, self)
+            self.online  = True
+
+            if initial:
+                RNS.log("TCP connection for "+str(self)+" established", RNS.LOG_DEBUG)
+        
+        except Exception as e:
+            if initial:
+                RNS.log("Initial connection for "+str(self)+" could not be established: "+str(e), RNS.LOG_ERROR)
+                RNS.log("Leaving unconnected and retrying connection in "+str(BackboneClientInterface.RECONNECT_WAIT)+" seconds.", RNS.LOG_ERROR)
+                return False
+            
+            else:
+                raise e
+
+        self.set_timeouts_linux()
+        
+        self.online  = True
+        self.never_connected = False
+
+        return True
+
+    def reconnect(self):
+        if self.initiator:
+            if not self.reconnecting:
+                self.reconnecting = True
+                attempts = 0
+                while not self.online:
+                    time.sleep(BackboneClientInterface.RECONNECT_WAIT)
+                    attempts += 1
+
+                    if self.max_reconnect_tries != None and attempts > self.max_reconnect_tries:
+                        RNS.log("Max reconnection attempts reached for "+str(self), RNS.LOG_ERROR)
+                        self.teardown()
+                        break
+
+                    try:
+                        self.connect()
+
+                    except Exception as e:
+                        RNS.log("Connection attempt for "+str(self)+" failed: "+str(e), RNS.LOG_DEBUG)
+
+                if not self.never_connected:
+                    RNS.log("Reconnected socket for "+str(self)+".", RNS.LOG_INFO)
+
+                self.reconnecting = False
+                RNS.Transport.synthesize_tunnel(self)
+
+        else:
+            RNS.log("Attempt to reconnect on a non-initiator TCP interface. This should not happen.", RNS.LOG_ERROR)
+            raise IOError("Attempt to reconnect on a non-initiator TCP interface")
+
+    def process_incoming(self, data):
+        if self.online and not self.detached:
+            self.rxb += len(data)
+            if hasattr(self, "parent_interface") and self.parent_interface != None:
+                self.parent_interface.rxb += len(data)
+                        
+            self.owner.inbound(data, self)
+
+    def process_outgoing(self, data):
+        if self.online and not self.detached:
+            try:
+                self.transmit_buffer += bytes([HDLC.FLAG])+HDLC.escape(data)+bytes([HDLC.FLAG])
+                BackboneInterface.tx_ready(self)
+
+            except Exception as e:
+                RNS.log("Exception occurred while transmitting via "+str(self)+", tearing down interface", RNS.LOG_ERROR)
+                RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+                self.teardown()
+
+    def receive(self, data_in):
+        try:
+            if len(data_in) > 0:
+                self.frame_buffer += data_in
+                flags_remaining = True
+                while flags_remaining:
+                    frame_start = self.frame_buffer.find(HDLC.FLAG)
+                    if frame_start != -1:
+                        frame_end = self.frame_buffer.find(HDLC.FLAG, frame_start+1)
+                        if frame_end != -1:
+                            frame = self.frame_buffer[frame_start+1:frame_end]
+                            frame = frame.replace(bytes([HDLC.ESC, HDLC.FLAG ^ HDLC.ESC_MASK]), bytes([HDLC.FLAG]))
+                            frame = frame.replace(bytes([HDLC.ESC, HDLC.ESC  ^ HDLC.ESC_MASK]), bytes([HDLC.ESC]))
+                            if len(frame) > RNS.Reticulum.HEADER_MINSIZE:
+                                self.process_incoming(frame)
+                            self.frame_buffer = self.frame_buffer[frame_end:]
+                        else:
+                            flags_remaining = False
+                    else:
+                        flags_remaining = False
+
+            else:
+                self.online = False
+                if self.initiator and not self.detached:
+                    RNS.log("The socket for "+str(self)+" was closed, attempting to reconnect...", RNS.LOG_WARNING)
+                    self.reconnect()
+                else:
+                    RNS.log("The socket for remote client "+str(self)+" was closed.", RNS.LOG_VERBOSE)
+                    self.teardown()
+                
+        except Exception as e:
+            self.online = False
+            RNS.log("An interface error occurred for "+str(self)+", the contained exception was: "+str(e), RNS.LOG_WARNING)
+
+            if self.initiator:
+                RNS.log("Attempting to reconnect...", RNS.LOG_WARNING)
+                self.reconnect()
+            else:
+                self.teardown()
+
+    def teardown(self):
+        if self.initiator and not self.detached:
+            RNS.log("The interface "+str(self)+" experienced an unrecoverable error and is being torn down. Restart Reticulum to attempt to open this interface again.", RNS.LOG_ERROR)
+            if RNS.Reticulum.panic_on_interface_error:
+                RNS.panic()
+
+        else:
+            RNS.log("The interface "+str(self)+" is being torn down.", RNS.LOG_VERBOSE)
+
+        self.online = False
+        self.OUT = False
+        self.IN = False
+
+        if hasattr(self, "parent_interface") and self.parent_interface != None:
+            while self in self.parent_interface.spawned_interfaces:
+                self.parent_interface.spawned_interfaces.remove(self)
+
+        if self in RNS.Transport.interfaces:
+            if not self.initiator:
+                RNS.Transport.interfaces.remove(self)
+
+
+    def __str__(self):
+        if ":" in self.target_ip: ip_str = f"[{self.target_ip}]"
+        else: ip_str = f"{self.target_ip}"
+        return "BackboneInterface["+str(self.name)+"/"+ip_str+":"+str(self.target_port)+"]"

RNS/Interfaces/I2PInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 import socketserver
 import threading
 import platform
@@ -627,14 +635,14 @@ class I2PInterfacePeer(Interface):
             RNS.log("Attempt to reconnect on a non-initiator I2P interface. This should not happen.", RNS.LOG_ERROR)
             raise IOError("Attempt to reconnect on a non-initiator I2P interface")
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)
         if hasattr(self, "parent_interface") and self.parent_interface != None and self.parent_count:
             self.parent_interface.rxb += len(data)
                     
         self.owner.inbound(data, self)
 
-    def processOutgoing(self, data):
+    def process_outgoing(self, data):
         if self.online:
             while self.writing:
                 time.sleep(0.001)
@@ -732,7 +740,7 @@ class I2PInterfacePeer(Interface):
                             # Read loop for KISS framing
                             if (in_frame and byte == KISS.FEND and command == KISS.CMD_DATA):
                                 in_frame = False
-                                self.processIncoming(data_buffer)
+                                self.process_incoming(data_buffer)
                             elif (byte == KISS.FEND):
                                 in_frame = True
                                 command = KISS.CMD_UNKNOWN
@@ -759,7 +767,7 @@ class I2PInterfacePeer(Interface):
                             # Read loop for HDLC framing
                             if (in_frame and byte == HDLC.FLAG):
                                 in_frame = False
-                                self.processIncoming(data_buffer)
+                                self.process_incoming(data_buffer)
                             elif (byte == HDLC.FLAG):
                                 in_frame = True
                                 data_buffer = b""
@@ -815,8 +823,8 @@ class I2PInterfacePeer(Interface):
         self.IN = False
 
         if hasattr(self, "parent_interface") and self.parent_interface != None:
-            if self.parent_interface.clients > 0:
-                self.parent_interface.clients -= 1
+            while self in self.parent_interface.spawned_interfaces:
+                self.parent_interface.spawned_interfaces.remove(self)
 
         if self in RNS.Transport.interfaces:
             if not self.initiator:
@@ -829,14 +837,28 @@ class I2PInterfacePeer(Interface):
 
 class I2PInterface(Interface):
     BITRATE_GUESS      = 256*1000
+    DEFAULT_IFAC_SIZE  = 16
 
-    def __init__(self, owner, name, rns_storagepath, peers, connectable = False, ifac_size = 16, ifac_netname = None, ifac_netkey = None):
+    @property
+    def clients(self):
+        return len(self.spawned_interfaces)
+
+    def __init__(self, owner, configuration):
         super().__init__()
+
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        rns_storagepath = c["storagepath"]
+        peers = c.as_list("peers") if "peers" in c else None
+        connectable = c.as_bool("connectable") if "connectable" in c else False
+        ifac_size = c["ifac_size"] if "ifac_size" in c else None
+        ifac_netname = c["ifac_netname"] if "ifac_netname" in c else None
+        ifac_netkey = c["ifac_netkey"] if "ifac_netkey" in c else None
         
         self.HW_MTU = 1064
 
         self.online = False
-        self.clients = 0
+        self.spawned_interfaces = []
         self.owner = owner
         self.connectable = connectable
         self.i2p_tunneled = True
@@ -956,10 +978,12 @@ class I2PInterface(Interface):
         spawned_interface.HW_MTU = self.HW_MTU
         RNS.log("Spawned new I2PInterface Peer: "+str(spawned_interface), RNS.LOG_VERBOSE)
         RNS.Transport.interfaces.append(spawned_interface)
-        self.clients += 1
+        while spawned_interface in self.spawned_interfaces:
+            self.spawned_interfaces.remove(spawned_interface)
+        self.spawned_interfaces.append(spawned_interface)
         spawned_interface.read_loop()
 
-    def processOutgoing(self, data):
+    def process_outgoing(self, data):
         pass
 
     def received_announce(self, from_spawned=False):

RNS/Interfaces/Interface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -24,6 +32,7 @@ import RNS
 import time
 import threading
 from collections import deque
+from RNS.vendor.configobj import ConfigObj
 
 class Interface:
     IN  = False
@@ -42,7 +51,7 @@ class Interface:
 
     # Which interface modes a Transport Node should
     # actively discover paths for.
-    DISCOVER_PATHS_FOR  = [MODE_ACCESS_POINT, MODE_GATEWAY]
+    DISCOVER_PATHS_FOR  = [MODE_ACCESS_POINT, MODE_GATEWAY, MODE_ROAMING]
 
     # How many samples to use for announce
     # frequency calculations
@@ -63,13 +72,21 @@ class Interface:
     IC_BURST_PENALTY         = 5*60
     IC_HELD_RELEASE_INTERVAL = 30
 
-    def __init__(self):
-        self.rxb = 0
-        self.txb = 0
-        self.created = time.time()
-        self.online = False
-        self.bitrate = 1e6
+    AUTOCONFIGURE_MTU = False
+    FIXED_MTU         = False
 
+    def __init__(self):
+        self.rxb      = 0
+        self.txb      = 0
+        self.created  = time.time()
+        self.detached = False
+        self.online   = False
+        self.bitrate  = 62500
+        self.HW_MTU   = None
+
+        self.parent_interface = None
+        self.spawned_interfaces = None
+        self.tunnel_id = None
         self.ingress_control = True
         self.ic_max_held_announces = Interface.MAX_HELD_ANNOUNCES
         self.ic_burst_hold = Interface.IC_BURST_HOLD
@@ -116,6 +133,33 @@ class Interface:
         else:
             return False
 
+    def optimise_mtu(self):
+        if self.AUTOCONFIGURE_MTU:
+            if self.bitrate   >= 1_000_000_000:
+                self.HW_MTU = 524288
+            elif self.bitrate > 750_000_000:
+                self.HW_MTU = 262144
+            elif self.bitrate > 400_000_000:
+                self.HW_MTU = 131072
+            elif self.bitrate > 200_000_000:
+                self.HW_MTU = 65536
+            elif self.bitrate > 100_000_000:
+                self.HW_MTU = 32768
+            elif self.bitrate > 10_000_000:
+                self.HW_MTU = 16384
+            elif self.bitrate > 5_000_000:
+                self.HW_MTU = 8192
+            elif self.bitrate > 2_000_000:
+                self.HW_MTU = 4096
+            elif self.bitrate > 1_000_000:
+                self.HW_MTU = 2048
+            elif self.bitrate > 62_500:
+                self.HW_MTU = 1024
+            else:
+                self.HW_MTU = None
+
+        RNS.log(f"{self} hardware MTU set to {self.HW_MTU}", RNS.LOG_DEBUG) # TODO: Remove debug
+
     def age(self):
         return time.time()-self.created
 
@@ -151,12 +195,12 @@ class Interface:
             RNS.log("An error occurred while processing held announces for "+str(self), RNS.LOG_ERROR)
             RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
 
-    def received_announce(self):
+    def received_announce(self, from_spawned=False):
         self.ia_freq_deque.append(time.time())
         if hasattr(self, "parent_interface") and self.parent_interface != None:
             self.parent_interface.received_announce(from_spawned=True)
 
-    def sent_announce(self):
+    def sent_announce(self, from_spawned=False):
         self.oa_freq_deque.append(time.time())
         if hasattr(self, "parent_interface") and self.parent_interface != None:
             self.parent_interface.sent_announce(from_spawned=True)
@@ -222,7 +266,7 @@ class Interface:
                     wait_time = (tx_time / self.announce_cap)
                     self.announce_allowed_at = now + wait_time
 
-                    self.processOutgoing(selected["raw"])
+                    self.process_outgoing(selected["raw"])
                     self.sent_announce()
 
                     if selected in self.announce_queue:
@@ -237,5 +281,19 @@ class Interface:
                 RNS.log("Error while processing announce queue on "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
                 RNS.log("The announce queue for this interface has been cleared.", RNS.LOG_ERROR)
 
+    def final_init(self):
+        pass
+
     def detach(self):
-        pass
+        pass
+
+    @staticmethod
+    def get_config_obj(config_in):
+        if type(config_in) == ConfigObj:
+            return config_in
+        else:
+            try:
+                return ConfigObj(config_in)
+            except Exception as e:
+                RNS.log(f"Could not parse supplied configuration data. The contained exception was: {e}", RNS.LOG_ERROR)
+                raise SystemError("Invalid configuration data supplied")

RNS/Interfaces/KISSInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 from time import sleep
 import sys
 import threading
@@ -52,6 +60,7 @@ class KISS():
 class KISSInterface(Interface):
     MAX_CHUNK = 32768
     BITRATE_GUESS = 1200
+    DEFAULT_IFAC_SIZE = 8
 
     owner    = None
     port     = None
@@ -61,8 +70,8 @@ class KISSInterface(Interface):
     stopbits = None
     serial   = None
 
-    def __init__(self, owner, name, port, speed, databits, parity, stopbits, preamble, txtail, persistence, slottime, flow_control, beacon_interval, beacon_data):
-        import importlib
+    def __init__(self, owner, configuration):
+        import importlib.util
         if importlib.util.find_spec('serial') != None:
             import serial
         else:
@@ -71,6 +80,24 @@ class KISSInterface(Interface):
             RNS.panic()
 
         super().__init__()
+
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        preamble = int(c["preamble"]) if "preamble" in c else None
+        txtail = int(c["txtail"]) if "txtail" in c else None
+        persistence = int(c["persistence"]) if "persistence" in c else None
+        slottime = int(c["slottime"]) if "slottime" in c else None
+        flow_control = c.as_bool("flow_control") if "flow_control" in c else False
+        port = c["port"] if "port" in c else None
+        speed = int(c["speed"]) if "speed" in c else 9600
+        databits = int(c["databits"]) if "databits" in c else 8
+        parity = c["parity"] if "parity" in c else "N"
+        stopbits = int(c["stopbits"]) if "stopbits" in c else 1
+        beacon_interval = int(c["id_interval"]) if "id_interval" in c else None
+        beacon_data = c["id_callsign"] if "id_callsign" in c else None
+
+        if port == None:
+            raise ValueError("No port specified for serial interface")
         
         self.HW_MTU = 564
         
@@ -217,12 +244,12 @@ class KISSInterface(Interface):
                 raise IOError("Could not enable KISS interface flow control")
 
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)  
         self.owner.inbound(data, self)
 
 
-    def processOutgoing(self,data):
+    def process_outgoing(self,data):
         datalen = len(data)
         if self.online:
             if self.interface_ready:
@@ -256,7 +283,7 @@ class KISSInterface(Interface):
         if len(self.packet_queue) > 0:
             data = self.packet_queue.pop(0)
             self.interface_ready = True
-            self.processOutgoing(data)
+            self.process_outgoing(data)
         elif len(self.packet_queue) == 0:
             self.interface_ready = True
 
@@ -275,7 +302,7 @@ class KISSInterface(Interface):
 
                     if (in_frame and byte == KISS.FEND and command == KISS.CMD_DATA):
                         in_frame = False
-                        self.processIncoming(data_buffer)
+                        self.process_incoming(data_buffer)
                     elif (byte == KISS.FEND):
                         in_frame = True
                         command = KISS.CMD_UNKNOWN
@@ -319,7 +346,13 @@ class KISSInterface(Interface):
                             if time.time() > self.first_tx + self.beacon_i:
                                 RNS.log("Interface "+str(self)+" is transmitting beacon data: "+str(self.beacon_d.decode("utf-8")), RNS.LOG_DEBUG)
                                 self.first_tx = None
-                                self.processOutgoing(self.beacon_d)
+                                
+                                # Pad to minimum length
+                                frame = bytearray(self.beacon_d)
+                                while len(frame) < 15:
+                                    frame.append(0x00)
+                                    
+                                self.process_outgoing(bytes(frame))
 
         except Exception as e:
             self.online = False

RNS/Interfaces/LocalInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
+from RNS.Interfaces.BackboneInterface import BackboneInterface
 import socketserver
 import threading
 import socket
@@ -52,16 +61,17 @@ class ThreadingTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
 
 class LocalClientInterface(Interface):
     RECONNECT_WAIT = 8
+    AUTOCONFIGURE_MTU = True
 
-    def __init__(self, owner, name, target_port = None, connected_socket=None):
+    def __init__(self, owner, name, target_port = None, connected_socket=None, socket_path=None):
         super().__init__()
 
-        # TODO: Remove at some point
-        # self.rxptime = 0
+        self.epoll_backend    = False
+        self.HW_MTU           = 262144
+        self.online           = False
         
-        self.HW_MTU = 1064
-
-        self.online  = False
+        if socket_path != None and RNS.Reticulum.get_instance().use_af_unix: self.socket_path = f"\0rns/{socket_path}"
+        else: self.socket_path = None
         
         self.IN               = True
         self.OUT              = False
@@ -72,16 +82,29 @@ class LocalClientInterface(Interface):
         self.detached         = False
         self.name             = name
         self.mode             = RNS.Interfaces.Interface.Interface.MODE_FULL
+        self.frame_buffer     = b""
+        self.transmit_buffer  = b""
+
+        if RNS.vendor.platformutils.use_epoll():
+            self.epoll_backend = True
 
         if connected_socket != None:
             self.receives    = True
             self.target_ip   = None
             self.target_port = None
             self.socket      = connected_socket
-            self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+
+            if self.socket.family == socket.AF_INET:
+                self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
 
             self.is_connected_to_shared_instance = False
 
+        elif self.socket_path != None:
+            self.receives    = True
+            self.target_ip   = None
+            self.target_port = None
+            self.connect()
+
         elif target_port != None:
             self.receives    = True
             self.target_ip   = "127.0.0.1"
@@ -89,7 +112,7 @@ class LocalClientInterface(Interface):
             self.connect()
 
         self.owner   = owner
-        self.bitrate = 1000*1000*1000
+        self.bitrate = 1_000_000_000
         self.online  = True
         self.writing = False
 
@@ -100,22 +123,30 @@ class LocalClientInterface(Interface):
         self.announce_rate_penalty = None
 
         if connected_socket == None:
-            thread = threading.Thread(target=self.read_loop)
-            thread.daemon = True
-            thread.start()
+            if not self.epoll_backend:
+                thread = threading.Thread(target=self.read_loop)
+                thread.daemon = True
+                thread.start()
 
     def should_ingress_limit(self):
         return False
 
     def connect(self):
-        self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-        self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
-        self.socket.connect((self.target_ip, self.target_port))
+        if self.socket_path != None:
+            self.socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+            self.socket.connect(self.socket_path)
+        
+        else:
+            self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+            self.socket.connect((self.target_ip, self.target_port))
 
         self.online = True
         self.is_connected_to_shared_instance = True
         self.never_connected = False
 
+        if self.epoll_backend: BackboneInterface.add_client_socket(self.socket, self)
+
         return True
 
 
@@ -139,9 +170,11 @@ class LocalClientInterface(Interface):
                     RNS.log("Reconnected socket for "+str(self)+".", RNS.LOG_INFO)
 
                 self.reconnecting = False
-                thread = threading.Thread(target=self.read_loop)
-                thread.daemon = True
-                thread.start()
+                if not self.epoll_backend:
+                    thread = threading.Thread(target=self.read_loop)
+                    thread.daemon = True
+                    thread.start()
+
                 def job():
                     time.sleep(LocalClientInterface.RECONNECT_WAIT+2)
                     RNS.Transport.shared_connection_reappeared()
@@ -152,77 +185,92 @@ class LocalClientInterface(Interface):
             raise IOError("Attempt to reconnect on a non-initiator local interface")
 
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)
-        if hasattr(self, "parent_interface") and self.parent_interface != None:
-            self.parent_interface.rxb += len(data)
+        if self.parent_interface != None: self.parent_interface.rxb += len(data)
         
-        # TODO: Remove at some point
-        # processing_start = time.time()
-        
-        self.owner.inbound(data, self)
+        try:
+            self.owner.inbound(data, self)
+        except Exception as e:
+            RNS.log(f"An error in the processing of an incoming frame for {self}: {e}", RNS.LOG_ERROR)
+            RNS.trace_exception(e)
 
-        # TODO: Remove at some point
-        # duration = time.time() - processing_start
-        # self.rxptime += duration
-
-    def processOutgoing(self, data):
+    def process_outgoing(self, data):
         if self.online:
             try:
-                self.writing = True
+                if self.epoll_backend:
+                    self.transmit_buffer += bytes([HDLC.FLAG])+HDLC.escape(data)+bytes([HDLC.FLAG])
+                    BackboneInterface.tx_ready(self)
 
-                if self._force_bitrate:
-                    if not hasattr(self, "send_lock"):
-                        self.send_lock = Lock()
+                else:
+                    self.writing = True
 
-                    with self.send_lock:
-                        s = len(data) / self.bitrate * 8
-                        RNS.log(f"Simulating latency of {RNS.prettytime(s)} for {len(data)} bytes")
-                        time.sleep(s)
+                    if self._force_bitrate:
+                        if not hasattr(self, "send_lock"):
+                            self.send_lock = Lock()
 
-                data = bytes([HDLC.FLAG])+HDLC.escape(data)+bytes([HDLC.FLAG])
-                self.socket.sendall(data)
-                self.writing = False
-                self.txb += len(data)
-                if hasattr(self, "parent_interface") and self.parent_interface != None:
-                    self.parent_interface.txb += len(data)
+                        with self.send_lock:
+                            # RNS.log(f"Simulating latency of {RNS.prettytime(s)} for {len(data)} bytes", RNS.LOG_EXTREME)
+                            s = len(data) / self.bitrate * 8
+                            time.sleep(s)
+
+                    data = bytes([HDLC.FLAG])+HDLC.escape(data)+bytes([HDLC.FLAG])
+                    self.socket.sendall(data)
+                    self.writing = False
+                    self.txb += len(data)
+                    if hasattr(self, "parent_interface") and self.parent_interface != None:
+                        self.parent_interface.txb += len(data)
 
             except Exception as e:
                 RNS.log("Exception occurred while transmitting via "+str(self)+", tearing down interface", RNS.LOG_ERROR)
                 RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+                RNS.trace_exception(e)
                 self.teardown()
 
+    def handle_hdlc(self, data_in):
+        self.frame_buffer += data_in
+        flags_remaining = True
+        while flags_remaining:
+            frame_start = self.frame_buffer.find(HDLC.FLAG)
+            if frame_start != -1:
+                frame_end = self.frame_buffer.find(HDLC.FLAG, frame_start+1)
+                if frame_end != -1:
+                    frame = self.frame_buffer[frame_start+1:frame_end]
+                    frame = frame.replace(bytes([HDLC.ESC, HDLC.FLAG ^ HDLC.ESC_MASK]), bytes([HDLC.FLAG]))
+                    frame = frame.replace(bytes([HDLC.ESC, HDLC.ESC  ^ HDLC.ESC_MASK]), bytes([HDLC.ESC]))
+                    if len(frame) > RNS.Reticulum.HEADER_MINSIZE:
+                        self.process_incoming(frame)
+                    self.frame_buffer = self.frame_buffer[frame_end:]
+                else:
+                    flags_remaining = False
+            else:
+                flags_remaining = False
+
+    def receive(self, data_in):
+        try:
+            if len(data_in) > 0: self.handle_hdlc(data_in)
+            else:
+                self.online = False
+                if self.is_connected_to_shared_instance and not self.detached:
+                    RNS.log("Socket for "+str(self)+" was closed, attempting to reconnect...", RNS.LOG_WARNING)
+                    RNS.Transport.shared_connection_disappeared()
+                    self.reconnect()
+                else:
+                    self.teardown(nowarning=True)
+                
+        except Exception as e:
+            self.online = False
+            RNS.log("An interface error occurred, the contained exception was: "+str(e), RNS.LOG_ERROR)
+            RNS.log("Tearing down "+str(self), RNS.LOG_ERROR)
+            self.teardown()
 
     def read_loop(self):
         try:
-            in_frame = False
-            escape = False
-            data_buffer = b""
-
+            self.frame_buffer = b""
+            data_in = b""
             while True:
                 data_in = self.socket.recv(4096)
-                if len(data_in) > 0:
-                    pointer = 0
-                    while pointer < len(data_in):
-                        byte = data_in[pointer]
-                        pointer += 1
-                        if (in_frame and byte == HDLC.FLAG):
-                            in_frame = False
-                            self.processIncoming(data_buffer)
-                        elif (byte == HDLC.FLAG):
-                            in_frame = True
-                            data_buffer = b""
-                        elif (in_frame and len(data_buffer) < self.HW_MTU):
-                            if (byte == HDLC.ESC):
-                                escape = True
-                            else:
-                                if (escape):
-                                    if (byte == HDLC.FLAG ^ HDLC.ESC_MASK):
-                                        byte = HDLC.FLAG
-                                    if (byte == HDLC.ESC  ^ HDLC.ESC_MASK):
-                                        byte = HDLC.ESC
-                                    escape = False
-                                data_buffer = data_buffer+bytes([byte])
+                if len(data_in) > 0: self.handle_hdlc(data_in)
                 else:
                     self.online = False
                     if self.is_connected_to_shared_instance and not self.detached:
@@ -234,7 +282,6 @@ class LocalClientInterface(Interface):
 
                     break
 
-                
         except Exception as e:
             self.online = False
             RNS.log("An interface error occurred, the contained exception was: "+str(e), RNS.LOG_ERROR)
@@ -249,12 +296,14 @@ class LocalClientInterface(Interface):
                     self.detached = True
                     
                     try:
-                        self.socket.shutdown(socket.SHUT_RDWR)
+                        if self.socket != None:
+                            self.socket.shutdown(socket.SHUT_RDWR)
                     except Exception as e:
                         RNS.log("Error while shutting down socket for "+str(self)+": "+str(e))
 
                     try:
-                        self.socket.close()
+                        if self.socket != None:
+                            self.socket.close()
                     except Exception as e:
                         RNS.log("Error while closing socket for "+str(self)+": "+str(e))
 
@@ -288,69 +337,115 @@ class LocalClientInterface(Interface):
 
 
     def __str__(self):
-        return "LocalInterface["+str(self.target_port)+"]"
+        if self.socket_path: return "LocalInterface["+str(self.socket_path.replace("\0", ""))+"]"
+        else: return "LocalInterface["+str(self.target_port)+"]"
 
 
 class LocalServerInterface(Interface):
+    AUTOCONFIGURE_MTU = True
 
-    def __init__(self, owner, bindport=None):
+    def __init__(self, owner, bindport=None, socket_path=None):
         super().__init__()
+        self.epoll_backend = False
         self.online = False
         self.clients = 0
         
+        if socket_path != None and RNS.Reticulum.get_instance().use_af_unix: self.socket_path = f"\0rns/{socket_path}"
+        else: self.socket_path = None
+        
         self.IN  = True
         self.OUT = False
         self.name = "Reticulum"
         self.mode = RNS.Interfaces.Interface.Interface.MODE_FULL
 
-        if (bindport != None):
+        if RNS.vendor.platformutils.use_epoll():
+            self.epoll_backend = True
+
+        if socket_path != None and self.epoll_backend:
+            self.receives = True
+            self.bind_ip = None
+            self.bind_port = None
+
+            self.owner = owner
+            self.is_local_shared_instance = True
+            BackboneInterface.add_listener(self, self.socket_path, socket_type=socket.AF_UNIX)
+
+        elif bindport != None:
             self.receives = True
             self.bind_ip = "127.0.0.1"
             self.bind_port = bindport
 
-            def handlerFactory(callback):
-                def createHandler(*args, **keys):
-                    return LocalInterfaceHandler(callback, *args, **keys)
-                return createHandler
-
             self.owner = owner
             self.is_local_shared_instance = True
 
             address = (self.bind_ip, self.bind_port)
+            if self.epoll_backend: BackboneInterface.add_listener(self, address)
+            else:
+                def handlerFactory(callback):
+                    def createHandler(*args, **keys):
+                        return LocalInterfaceHandler(callback, *args, **keys)
+                    return createHandler
 
-            self.server = ThreadingTCPServer(address, handlerFactory(self.incoming_connection))
-
-            thread = threading.Thread(target=self.server.serve_forever)
-            thread.daemon = True
-            thread.start()
-
-            self.announce_rate_target  = None
-            self.announce_rate_grace   = None
-            self.announce_rate_penalty = None
-
-            self.bitrate = 1000*1000*1000
-            self.online = True
+                self.server = ThreadingTCPServer(address, handlerFactory(self.incoming_connection))
+                self.server.daemon_threads = True
+                thread = threading.Thread(target=self.server.serve_forever)
+                thread.daemon = True
+                thread.start()
 
+        self.announce_rate_target  = None
+        self.announce_rate_grace   = None
+        self.announce_rate_penalty = None
 
+        self.bitrate = 1000*1000*1000
+        self.online = True
 
     def incoming_connection(self, handler):
-        interface_name = str(str(handler.client_address[1]))
-        spawned_interface = LocalClientInterface(self.owner, name=interface_name, connected_socket=handler.request)
-        spawned_interface.OUT = self.OUT
-        spawned_interface.IN  = self.IN
-        spawned_interface.target_ip = handler.client_address[0]
-        spawned_interface.target_port = str(handler.client_address[1])
-        spawned_interface.parent_interface = self
-        spawned_interface.bitrate = self.bitrate
-        if hasattr(self, "_force_bitrate"):
-            spawned_interface._force_bitrate = self._force_bitrate
-        # RNS.log("Accepting new connection to shared instance: "+str(spawned_interface), RNS.LOG_EXTREME)
-        RNS.Transport.interfaces.append(spawned_interface)
-        RNS.Transport.local_client_interfaces.append(spawned_interface)
-        self.clients += 1
-        spawned_interface.read_loop()
+        if self.epoll_backend:
+            client_socket = handler
+            if client_socket.family == socket.AF_INET:
+                interface_name = str(str(client_socket.getpeername()[1]))
+            elif client_socket.family == socket.AF_UNIX:
+                interface_name = f"{self.clients}@{self.socket_path}"
 
-    def processOutgoing(self, data):
+            spawned_interface = LocalClientInterface(self.owner, name=interface_name, connected_socket=client_socket)
+            spawned_interface.OUT = self.OUT
+            spawned_interface.IN  = self.IN
+            spawned_interface.socket = client_socket
+            spawned_interface.parent_interface = self
+            spawned_interface.bitrate = self.bitrate
+
+            if client_socket.family == socket.AF_INET:
+                spawned_interface.target_ip = client_socket.getpeername()[0]
+                spawned_interface.target_port = str(client_socket.getpeername()[1])
+
+            elif client_socket.family == socket.AF_UNIX:
+                spawned_interface.target_ip = None
+                spawned_interface.target_port = interface_name
+                spawned_interface.socket_path = self.socket_path
+
+            if hasattr(self, "_force_bitrate"): spawned_interface._force_bitrate = self._force_bitrate
+            RNS.Transport.interfaces.append(spawned_interface)
+            RNS.Transport.local_client_interfaces.append(spawned_interface)
+            BackboneInterface.add_client_socket(client_socket, spawned_interface)
+            self.clients += 1
+            return True
+
+        else:
+            interface_name = str(str(handler.client_address[1]))
+            spawned_interface = LocalClientInterface(self.owner, name=interface_name, connected_socket=handler.request)
+            spawned_interface.OUT = self.OUT
+            spawned_interface.IN  = self.IN
+            spawned_interface.target_ip = handler.client_address[0]
+            spawned_interface.target_port = str(handler.client_address[1])
+            spawned_interface.parent_interface = self
+            spawned_interface.bitrate = self.bitrate
+            if hasattr(self, "_force_bitrate"): spawned_interface._force_bitrate = self._force_bitrate
+            RNS.Transport.interfaces.append(spawned_interface)
+            RNS.Transport.local_client_interfaces.append(spawned_interface)
+            self.clients += 1
+            spawned_interface.read_loop()
+
+    def process_outgoing(self, data):
         pass
 
     def received_announce(self, from_spawned=False):
@@ -360,7 +455,8 @@ class LocalServerInterface(Interface):
         if from_spawned: self.oa_freq_deque.append(time.time())
 
     def __str__(self):
-        return "Shared Instance["+str(self.bind_port)+"]"
+        if self.socket_path: return "Shared Instance["+str(self.socket_path.replace("\0", ""))+"]"
+        else: return "Shared Instance["+str(self.bind_port)+"]"
 
 class LocalInterfaceHandler(socketserver.BaseRequestHandler):
     def __init__(self, callback, *args, **keys):

RNS/Interfaces/PipeInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 from time import sleep
 import sys
 import threading
@@ -46,16 +54,25 @@ class HDLC():
 class PipeInterface(Interface):
     MAX_CHUNK = 32768
     BITRATE_GUESS = 1*1000*1000
+    DEFAULT_IFAC_SIZE = 8
 
     owner    = None
     command  = None
     
-    def __init__(self, owner, name, command, respawn_delay):
+    def __init__(self, owner, configuration):
+        super().__init__()
+
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        command = c["command"] if "command" in c else None
+        respawn_delay = c.as_float("respawn_delay") if "respawn_delay" in c else None
+
+        if command == None:
+            raise ValueError("No command specified for PipeInterface")
+
         if respawn_delay == None:
             respawn_delay = 5
 
-        super().__init__()
-
         self.HW_MTU = 1064
         
         self.owner    = owner
@@ -101,12 +118,12 @@ class PipeInterface(Interface):
         RNS.log("Subprocess pipe for "+str(self)+" is now connected", RNS.LOG_VERBOSE)
 
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)            
         self.owner.inbound(data, self)
 
 
-    def processOutgoing(self,data):
+    def process_outgoing(self,data):
         if self.online:
             data = bytes([HDLC.FLAG])+HDLC.escape(data)+bytes([HDLC.FLAG])
             written = self.process.stdin.write(data)
@@ -134,7 +151,7 @@ class PipeInterface(Interface):
 
                     if (in_frame and byte == HDLC.FLAG):
                         in_frame = False
-                        self.processIncoming(data_buffer)
+                        self.process_incoming(data_buffer)
                     elif (byte == HDLC.FLAG):
                         in_frame = True
                         data_buffer = b""

RNS/Interfaces/RNodeInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 from time import sleep
 import sys
 import threading
@@ -54,10 +62,13 @@ class KISS():
     CMD_STAT_SNR    = 0x24
     CMD_STAT_CHTM   = 0x25
     CMD_STAT_PHYPRM = 0x26
+    CMD_STAT_BAT    = 0x27
+    CMD_STAT_CSMA   = 0x28
     CMD_BLINK       = 0x30
     CMD_RANDOM      = 0x40
     CMD_FB_EXT      = 0x41
     CMD_FB_READ     = 0x42
+    CMD_DISP_READ   = 0x66
     CMD_FB_WRITE    = 0x43
     CMD_BT_CTRL     = 0x46
     CMD_PLATFORM    = 0x48
@@ -77,9 +88,13 @@ class KISS():
     ERROR_INITRADIO     = 0x01
     ERROR_TXFAILED      = 0x02
     ERROR_EEPROM_LOCKED = 0x03
+    ERROR_QUEUE_FULL    = 0x04
+    ERROR_MEMORY_LOW    = 0x05
+    ERROR_MODEM_TIMEOUT = 0x06
 
     PLATFORM_AVR   = 0x90
     PLATFORM_ESP32 = 0x80
+    PLATFORM_NRF52 = 0x70
 
     @staticmethod
     def escape(data):
@@ -90,6 +105,7 @@ class KISS():
 
 class RNodeInterface(Interface):
     MAX_CHUNK = 32768
+    DEFAULT_IFAC_SIZE = 8
 
     FREQ_MIN = 137000000
     FREQ_MAX = 3000000000
@@ -107,11 +123,18 @@ class RNodeInterface(Interface):
     Q_SNR_MAX      = 6
     Q_SNR_STEP     = 2
 
-    def __init__(self, owner, name, port, frequency = None, bandwidth = None, txpower = None, sf = None, cr = None, flow_control = False, id_interval = None, id_callsign = None, st_alock = None, lt_alock = None):
+    BATTERY_STATE_UNKNOWN     = 0x00
+    BATTERY_STATE_DISCHARGING = 0x01
+    BATTERY_STATE_CHARGING    = 0x02
+    BATTERY_STATE_CHARGED     = 0x03
+
+    DISPLAY_READ_INTERVAL     = 1.0
+
+    def __init__(self, owner, configuration):
         if RNS.vendor.platformutils.is_android():
             raise SystemError("Invalid interface type. The Android-specific RNode interface must be used on Android")
 
-        import importlib
+        import importlib.util
         if importlib.util.find_spec('serial') != None:
             import serial
         else:
@@ -121,6 +144,41 @@ class RNodeInterface(Interface):
 
         super().__init__()
 
+        c = Interface.get_config_obj(configuration)
+        name         = c["name"]
+        frequency    = int(c["frequency"]) if "frequency" in c else 0
+        bandwidth    = int(c["bandwidth"]) if "bandwidth" in c else 0
+        txpower      = int(c["txpower"]) if "txpower" in c else 0
+        sf           = int(c["spreadingfactor"]) if "spreadingfactor" in c else 0
+        cr           = int(c["codingrate"]) if "codingrate" in c else 0
+        flow_control = c.as_bool("flow_control") if "flow_control" in c else False
+        id_interval  = int(c["id_interval"]) if "id_interval" in c else None
+        id_callsign  = c["id_callsign"] if "id_callsign" in c else None
+        st_alock     = float(c["airtime_limit_short"]) if "airtime_limit_short" in c else None
+        lt_alock     = float(c["airtime_limit_long"]) if "airtime_limit_long" in c else None
+
+        force_ble = False
+        ble_name = None
+        ble_addr = None
+
+        port = c["port"] if "port" in c else None
+
+        if port == None:
+            raise ValueError("No port specified for RNode interface")
+
+        if port != None:
+            ble_uri_scheme = "ble://"
+            if port.lower().startswith(ble_uri_scheme):
+                force_ble = True
+                ble_string = port[len(ble_uri_scheme):]
+                port = None
+                if len(ble_string) == 0:
+                    pass
+                elif len(ble_string.split(":")) == 6 and len(ble_string) == 17:
+                    ble_addr = ble_string
+                else:
+                    ble_name = ble_string
+
         self.HW_MTU = 508
         
         self.pyserial    = serial
@@ -135,6 +193,16 @@ class RNodeInterface(Interface):
         self.online      = False
         self.detached    = False
         self.reconnecting= False
+        self.hw_errors   = []
+
+        self.use_ble     = False
+        self.ble_name    = ble_name
+        self.ble_addr    = ble_addr
+        self.ble         = None
+        self.ble_rx_lock = threading.Lock()
+        self.ble_tx_lock = threading.Lock()
+        self.ble_rx_queue= b""
+        self.ble_tx_queue= b""
 
         self.frequency   = frequency
         self.bandwidth   = bandwidth
@@ -175,16 +243,38 @@ class RNodeInterface(Interface):
         self.r_airtime_long       = 0.0
         self.r_channel_load_short = 0.0
         self.r_channel_load_long  = 0.0
-        self.r_symbol_time_ms = None
-        self.r_symbol_rate = None
-        self.r_preamble_symbols = None
-        self.r_premable_time_ms = None
+        self.r_symbol_time_ms     = None
+        self.r_symbol_rate        = None
+        self.r_preamble_symbols   = None
+        self.r_premable_time_ms   = None
+        self.r_csma_slot_time_ms  = None
+        self.r_csma_difs_ms       = None
+        self.r_csma_cw_band       = None
+        self.r_csma_cw_min        = None
+        self.r_csma_cw_max        = None
+        self.r_current_rssi       = None
+        self.r_noise_floor        = None
+
+        self.r_battery_state = RNodeInterface.BATTERY_STATE_UNKNOWN
+        self.r_battery_percent = 0
+        self.r_framebuffer = b""
+        self.r_framebuffer_readtime = 0
+        self.r_framebuffer_latency = 0
+        self.r_disp = b""
+        self.r_disp_readtime = 0
+        self.r_disp_latency = 0
+
+        self.should_read_display   = False
+        self.read_display_interval = RNodeInterface.DISPLAY_READ_INTERVAL
 
         self.packet_queue    = []
         self.flow_control    = flow_control
         self.interface_ready = False
         self.announce_rate_target = None
 
+        if force_ble or self.ble_addr != None or self.ble_name != None:
+            self.use_ble = True
+
         self.validcfg  = True
         if (self.frequency < RNodeInterface.FREQ_MIN or self.frequency > RNodeInterface.FREQ_MAX):
             RNS.log("Invalid frequency configured for "+str(self), RNS.LOG_ERROR)
@@ -248,23 +338,38 @@ class RNodeInterface(Interface):
 
 
     def open_port(self):
-        RNS.log("Opening serial port "+self.port+"...")
-        self.serial = self.pyserial.Serial(
-            port = self.port,
-            baudrate = self.speed,
-            bytesize = self.databits,
-            parity = self.pyserial.PARITY_NONE,
-            stopbits = self.stopbits,
-            xonxoff = False,
-            rtscts = False,
-            timeout = 0,
-            inter_byte_timeout = None,
-            write_timeout = None,
-            dsrdtr = False,
-        )
+        if not self.use_ble:
+            RNS.log("Opening serial port "+self.port+"...")
+            self.serial = self.pyserial.Serial(
+                port = self.port,
+                baudrate = self.speed,
+                bytesize = self.databits,
+                parity = self.pyserial.PARITY_NONE,
+                stopbits = self.stopbits,
+                xonxoff = False,
+                rtscts = False,
+                timeout = 0,
+                inter_byte_timeout = None,
+                write_timeout = None,
+                dsrdtr = False,
+            )
+        
+        else:
+            RNS.log(f"Opening BLE connection for {self}...")
+            if self.ble != None and self.ble.running == False:
+                self.ble.close()
+                self.ble.cleanup()
+                self.ble = None
 
+            if self.ble == None:
+                self.ble = BLEConnection(owner=self, target_name=self.ble_name, target_bt_addr=self.ble_addr)
+                self.serial = self.ble
 
-    def configure_device(self):
+            open_time = time.time()
+            while not self.ble.connected and time.time() < open_time + self.ble.CONNECT_TIMEOUT:
+                time.sleep(1)
+
+    def reset_radio_state(self):
         self.r_frequency = None
         self.r_bandwidth = None
         self.r_txpower   = None
@@ -272,6 +377,10 @@ class RNodeInterface(Interface):
         self.r_cr        = None
         self.r_state     = None
         self.r_lock      = None
+        self.detected    = False
+
+    def configure_device(self):
+        self.reset_radio_state()
         sleep(2.0)
 
         thread = threading.Thread(target=self.readLoop)
@@ -279,13 +388,23 @@ class RNodeInterface(Interface):
         thread.start()
 
         self.detect()
-        sleep(0.2)
+        if not self.use_ble:
+            sleep(0.2)
+        else:
+            ble_detect_timeout = 5
+            detect_time = time.time()
+            while not self.detected and time.time() < detect_time + ble_detect_timeout:
+                time.sleep(0.1)
+            if self.detected:
+                detect_time = RNS.prettytime(time.time()-detect_time)
+            else:
+                RNS.log(f"RNode detect timed out over {self.port}", RNS.LOG_ERROR)
         
         if not self.detected:
             RNS.log("Could not detect device for "+str(self), RNS.LOG_ERROR)
             self.serial.close()
         else:
-            if self.platform == KISS.PLATFORM_ESP32:
+            if self.platform == KISS.PLATFORM_ESP32 or self.platform == KISS.PLATFORM_NRF52:
                 self.display = True
 
         RNS.log("Serial port "+self.port+" is now open")
@@ -313,6 +432,9 @@ class RNodeInterface(Interface):
         self.setLTALock()
         self.setRadioState(KISS.RADIO_STATE_ON)
 
+        if self.use_ble:
+            time.sleep(2)
+
     def detect(self):
         kiss_command = bytes([KISS.FEND, KISS.CMD_DETECT, KISS.DETECT_REQ, KISS.FEND, KISS.CMD_FW_VERSION, 0x00, KISS.FEND, KISS.CMD_PLATFORM, 0x00, KISS.FEND, KISS.CMD_MCU, 0x00, KISS.FEND])
         written = self.serial.write(kiss_command)
@@ -361,7 +483,34 @@ class RNodeInterface(Interface):
             
             written = self.serial.write(kiss_command)
             if written != len(kiss_command):
-                raise IOError("An IO error occurred while writing framebuffer data device")
+                raise IOError("An IO error occurred while writing framebuffer data to device")
+
+    def read_framebuffer(self):
+        kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_FB_READ])+bytes([0x01])+bytes([KISS.FEND])
+        written = self.serial.write(kiss_command)
+        self.r_framebuffer_readtime = time.time()
+        if written != len(kiss_command):
+            raise IOError("An IO error occurred while sending framebuffer read command")
+
+    def read_display(self):
+        kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_DISP_READ])+bytes([0x01])+bytes([KISS.FEND])
+        written = self.serial.write(kiss_command)
+        self.r_disp_readtime = time.time()
+        if written != len(kiss_command):
+            raise IOError("An IO error occurred while sending display read command")
+
+    def _read_display_job(self):
+        while self.should_read_display:
+            self.read_display()
+            time.sleep(self.read_display_interval)
+
+    def start_display_updates(self):
+        if not self.should_read_display:
+            self.should_read_display = True
+            threading.Thread(target=self._read_display_job, daemon=True).start()
+
+    def stop_display_updates(self):
+        self.should_read_display = False
 
     def hard_reset(self):
         kiss_command = bytes([KISS.FEND, KISS.CMD_RESET, 0xf8, KISS.FEND])
@@ -447,9 +596,12 @@ class RNodeInterface(Interface):
             raise IOError("An IO error occurred while configuring radio state for "+str(self))
 
     def validate_firmware(self):
-        if (self.maj_version >= RNodeInterface.REQUIRED_FW_VER_MAJ):
-            if (self.min_version >= RNodeInterface.REQUIRED_FW_VER_MIN):
-                self.firmware_ok = True
+        if (self.maj_version > RNodeInterface.REQUIRED_FW_VER_MAJ):
+            self.firmware_ok = True
+        else:
+            if (self.maj_version >= RNodeInterface.REQUIRED_FW_VER_MAJ):
+                if (self.min_version >= RNodeInterface.REQUIRED_FW_VER_MIN):
+                    self.firmware_ok = True
         
         if self.firmware_ok:
             return
@@ -462,7 +614,14 @@ class RNodeInterface(Interface):
 
     def validateRadioState(self):
         RNS.log("Waiting for radio configuration validation for "+str(self)+"...", RNS.LOG_VERBOSE)
-        sleep(0.25);
+        if self.use_ble:
+            sleep(1.00)
+        else:
+            sleep(0.25)
+
+        if self.use_ble and self.ble != None and self.ble.device_disappeared:
+            RNS.log(f"Device disappeared during radio state validation for {self}", RNS.LOG_ERROR)
+            return False
 
         self.validcfg = True
         if (self.r_frequency != None and abs(self.frequency - int(self.r_frequency)) > 100):
@@ -495,14 +654,14 @@ class RNodeInterface(Interface):
         except:
             self.bitrate = 0
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)
         self.owner.inbound(data, self)
         self.r_stat_rssi = None
         self.r_stat_snr = None
 
 
-    def processOutgoing(self,data):
+    def process_outgoing(self,data):
         datalen = len(data)
         if self.online:
             if self.interface_ready:
@@ -533,7 +692,7 @@ class RNodeInterface(Interface):
         if len(self.packet_queue) > 0:
             data = self.packet_queue.pop(0)
             self.interface_ready = True
-            self.processOutgoing(data)
+            self.process_outgoing(data)
         elif len(self.packet_queue) == 0:
             self.interface_ready = True
 
@@ -553,7 +712,7 @@ class RNodeInterface(Interface):
 
                     if (in_frame and byte == KISS.FEND and command == KISS.CMD_DATA):
                         in_frame = False
-                        self.processIncoming(data_buffer)
+                        self.process_incoming(data_buffer)
                         data_buffer = b""
                         command_buffer = b""
                     elif (byte == KISS.FEND):
@@ -622,7 +781,6 @@ class RNodeInterface(Interface):
                             self.r_state = byte
                             if self.r_state:
                                 pass
-                                #RNS.log(str(self)+" Radio reporting state is online", RNS.LOG_DEBUG)
                             else:
                                 RNS.log(str(self)+" Radio reporting state is offline", RNS.LOG_DEBUG)
 
@@ -729,16 +887,31 @@ class RNodeInterface(Interface):
                                         byte = KISS.FESC
                                     escape = False
                                 command_buffer = command_buffer+bytes([byte])
-                                if (len(command_buffer) == 8):
+                                if (len(command_buffer) == 11):
                                     ats = command_buffer[0] << 8 | command_buffer[1]
                                     atl = command_buffer[2] << 8 | command_buffer[3]
                                     cus = command_buffer[4] << 8 | command_buffer[5]
                                     cul = command_buffer[6] << 8 | command_buffer[7]
+                                    crs = command_buffer[8]
+                                    nfl = command_buffer[9]
+                                    ntf = command_buffer[10]
                                     
                                     self.r_airtime_short      = ats/100.0
                                     self.r_airtime_long       = atl/100.0
                                     self.r_channel_load_short = cus/100.0
                                     self.r_channel_load_long  = cul/100.0
+                                    self.r_current_rssi       = crs-RNodeInterface.RSSI_OFFSET
+                                    self.r_noise_floor        = nfl-RNodeInterface.RSSI_OFFSET
+                                    if ntf == 0xFF:
+                                        self.r_interference   = None
+                                    else:
+                                        self.r_interference   = ntf-RNodeInterface.RSSI_OFFSET
+                                    
+                                    if self.r_interference != None:
+                                        RNS.log(f"{self} Radio detected interference at {self.r_interference} dBm", RNS.LOG_DEBUG)
+
+                                    # TODO: Remove debug
+                                    # RNS.log(f"RSSI: {self.r_current_rssi}, Noise floor: {self.r_noise_floor}, Interference: {self.r_interference}", RNS.LOG_EXTREME)
                         elif (command == KISS.CMD_STAT_PHYPRM):
                             if (byte == KISS.FESC):
                                 escape = True
@@ -750,22 +923,68 @@ class RNodeInterface(Interface):
                                         byte = KISS.FESC
                                     escape = False
                                 command_buffer = command_buffer+bytes([byte])
-                                if (len(command_buffer) == 10):
+                                if (len(command_buffer) == 12):
                                     lst = (command_buffer[0] << 8 | command_buffer[1])/1000.0
                                     lsr = command_buffer[2] << 8 | command_buffer[3]
                                     prs = command_buffer[4] << 8 | command_buffer[5]
                                     prt = command_buffer[6] << 8 | command_buffer[7]
                                     cst = command_buffer[8] << 8 | command_buffer[9]
+                                    dft = command_buffer[10] << 8 | command_buffer[11]
 
-                                    if lst != self.r_symbol_time_ms or lsr != self.r_symbol_rate or prs != self.r_preamble_symbols or prt != self.r_premable_time_ms or cst != self.r_csma_slot_time_ms:
+                                    if lst != self.r_symbol_time_ms or lsr != self.r_symbol_rate or prs != self.r_preamble_symbols or prt != self.r_premable_time_ms or cst != self.r_csma_slot_time_ms or dft != self.r_csma_difs_ms:
                                         self.r_symbol_time_ms    = lst
                                         self.r_symbol_rate       = lsr
                                         self.r_preamble_symbols  = prs
                                         self.r_premable_time_ms  = prt
                                         self.r_csma_slot_time_ms = cst
-                                        RNS.log(str(self)+" Radio reporting symbol time is "+str(round(self.r_symbol_time_ms,2))+"ms (at "+str(self.r_symbol_rate)+" baud)", RNS.LOG_DEBUG)
-                                        RNS.log(str(self)+" Radio reporting preamble is "+str(self.r_preamble_symbols)+" symbols ("+str(self.r_premable_time_ms)+"ms)", RNS.LOG_DEBUG)
-                                        RNS.log(str(self)+" Radio reporting CSMA slot time is "+str(self.r_csma_slot_time_ms)+"ms", RNS.LOG_DEBUG)
+                                        self.r_csma_difs_ms      = dft
+                                        RNS.log(f"{self} Radio reporting symbol time is "+str(round(self.r_symbol_time_ms,2))+"ms ("+str(self.r_symbol_rate)+" baud)", RNS.LOG_DEBUG)
+                                        RNS.log(f"{self} Radio reporting preamble is "+str(self.r_preamble_symbols)+" symbols ("+str(self.r_premable_time_ms)+"ms)", RNS.LOG_DEBUG)
+                                        RNS.log(f"{self} Radio reporting CSMA slot time is "+str(self.r_csma_slot_time_ms)+"ms", RNS.LOG_DEBUG)
+                                        RNS.log(f"{self} Radio reporting DIFS time is "+str(self.r_csma_difs_ms)+"ms", RNS.LOG_DEBUG)
+                        elif (command == KISS.CMD_STAT_CSMA):
+                            if (byte == KISS.FESC):
+                                escape = True
+                            else:
+                                if (escape):
+                                    if (byte == KISS.TFEND):
+                                        byte = KISS.FEND
+                                    if (byte == KISS.TFESC):
+                                        byte = KISS.FESC
+                                    escape = False
+                                command_buffer = command_buffer+bytes([byte])
+                                if (len(command_buffer) == 3):
+                                    cbw = command_buffer[0]
+                                    cbl = command_buffer[1]
+                                    cbh = command_buffer[2]
+
+                                    if cbw != self.r_csma_cw_band or cbl != self.r_csma_cw_min or cbh != self.r_csma_cw_max:
+                                        self.r_csma_cw_band = cbw
+                                        self.r_csma_cw_min  = cbl
+                                        self.r_csma_cw_max  = cbh
+                                        # TODO: Remove debug
+                                        # RNS.log(f"{self} Radio reporting contention window band is {self.r_csma_cw_band}", RNS.LOG_EXTREME)
+                                        # RNS.log(f"{self} Radio reporting minimum contention window is {self.r_csma_cw_min}", RNS.LOG_EXTREME)
+                                        # RNS.log(f"{self} Radio reporting maximum contention window is {self.r_csma_cw_max}", RNS.LOG_EXTREME)
+                        elif (command == KISS.CMD_STAT_BAT):
+                            if (byte == KISS.FESC):
+                                escape = True
+                            else:
+                                if (escape):
+                                    if (byte == KISS.TFEND):
+                                        byte = KISS.FEND
+                                    if (byte == KISS.TFESC):
+                                        byte = KISS.FESC
+                                    escape = False
+                                command_buffer = command_buffer+bytes([byte])
+                                if (len(command_buffer) == 2):
+                                    bat_percent = command_buffer[1]
+                                    if bat_percent > 100:
+                                        bat_percent = 100
+                                    if bat_percent < 0:
+                                        bat_percent = 0
+                                    self.r_battery_state   = command_buffer[0]
+                                    self.r_battery_percent = bat_percent
                         elif (command == KISS.CMD_RANDOM):
                             self.r_random = byte
                         elif (command == KISS.CMD_PLATFORM):
@@ -779,6 +998,12 @@ class RNodeInterface(Interface):
                             elif (byte == KISS.ERROR_TXFAILED):
                                 RNS.log(str(self)+" hardware TX error (code "+RNS.hexrep(byte)+")", RNS.LOG_ERROR)
                                 raise IOError("Hardware transmit failure")
+                            elif (byte == KISS.ERROR_MEMORY_LOW):
+                                RNS.log(str(self)+" hardware error (code "+RNS.hexrep(byte)+"): Memory exhausted", RNS.LOG_ERROR)
+                                self.hw_errors.append({"error": KISS.ERROR_MEMORY_LOW, "description": "Memory exhausted on connected device"})
+                            elif (byte == KISS.ERROR_MODEM_TIMEOUT):
+                                RNS.log(str(self)+" hardware error (code "+RNS.hexrep(byte)+"): Modem communication timed out", RNS.LOG_ERROR)
+                                self.hw_errors.append({"error": KISS.ERROR_MODEM_TIMEOUT, "description": "Modem communication timed out on connected device"})
                             else:
                                 RNS.log(str(self)+" hardware error (code "+RNS.hexrep(byte)+")", RNS.LOG_ERROR)
                                 raise IOError("Unknown hardware failure")
@@ -790,6 +1015,36 @@ class RNodeInterface(Interface):
                                         raise IOError("ESP32 reset")
                         elif (command == KISS.CMD_READY):
                             self.process_queue()
+                        elif (command == KISS.CMD_FB_READ):
+                            if (byte == KISS.FESC):
+                                escape = True
+                            else:
+                                if (escape):
+                                    if (byte == KISS.TFEND):
+                                        byte = KISS.FEND
+                                    if (byte == KISS.TFESC):
+                                        byte = KISS.FESC
+                                    escape = False
+                                command_buffer = command_buffer+bytes([byte])
+                                if (len(command_buffer) == 512):
+                                    self.r_framebuffer_latency = time.time() - self.r_framebuffer_readtime
+                                    self.r_framebuffer = command_buffer
+
+                        elif (command == KISS.CMD_DISP_READ):
+                            if (byte == KISS.FESC):
+                                escape = True
+                            else:
+                                if (escape):
+                                    if (byte == KISS.TFEND):
+                                        byte = KISS.FEND
+                                    if (byte == KISS.TFESC):
+                                        byte = KISS.FESC
+                                    escape = False
+                                command_buffer = command_buffer+bytes([byte])
+                                if (len(command_buffer) == 1024):
+                                    self.r_disp_latency = time.time() - self.r_disp_readtime
+                                    self.r_disp = command_buffer
+
                         elif (command == KISS.CMD_DETECT):
                             if byte == KISS.DETECT_RESP:
                                 self.detected = True
@@ -809,7 +1064,7 @@ class RNodeInterface(Interface):
                         if self.first_tx != None:
                             if time.time() > self.first_tx + self.id_interval:
                                 RNS.log("Interface "+str(self)+" is transmitting beacon data: "+str(self.id_callsign.decode("utf-8")), RNS.LOG_DEBUG)
-                                self.processOutgoing(self.id_callsign)
+                                self.process_outgoing(self.id_callsign)
 
                     sleep(0.08)
 
@@ -853,9 +1108,219 @@ class RNodeInterface(Interface):
         self.disable_external_framebuffer()
         self.setRadioState(KISS.RADIO_STATE_OFF)
         self.leave()
+        
+        if self.use_ble:
+            self.ble.close()
 
     def should_ingress_limit(self):
         return False
 
+    def get_battery_state(self):
+        return self.r_battery_state
+
+    def get_battery_state_string(self):
+        if self.r_battery_state == RNodeInterface.BATTERY_STATE_CHARGED:
+            return "charged"
+        elif  self.r_battery_state == RNodeInterface.BATTERY_STATE_CHARGING:
+            return "charging"
+        elif self.r_battery_state == RNodeInterface.BATTERY_STATE_DISCHARGING:
+            return "discharging"
+        else:
+            return "unknown"
+
+    def get_battery_percent(self):
+        return self.r_battery_percent
+
+    def ble_receive(self, data):
+        with self.ble_rx_lock:
+            self.ble_rx_queue += data
+
+    def ble_waiting(self):
+        return len(self.ble_tx_queue) > 0
+
+    def get_ble_waiting(self, n):
+        with self.ble_tx_lock:
+            data = self.ble_tx_queue[:n]
+            self.ble_tx_queue = self.ble_tx_queue[n:]
+            return data
+
     def __str__(self):
         return "RNodeInterface["+str(self.name)+"]"
+
+class BLEConnection():
+    UART_SERVICE_UUID = "6E400001-B5A3-F393-E0A9-E50E24DCCA9E"
+    UART_RX_CHAR_UUID = "6E400002-B5A3-F393-E0A9-E50E24DCCA9E"
+    UART_TX_CHAR_UUID = "6E400003-B5A3-F393-E0A9-E50E24DCCA9E"
+    bleak = None
+
+    SCAN_TIMEOUT = 2.0
+    CONNECT_TIMEOUT = 5.0
+
+    @property
+    def is_open(self):
+        return self.connected
+
+    @property
+    def in_waiting(self):
+        buflen = len(self.owner.ble_rx_queue)
+        return buflen > 0
+
+    def write(self, data_bytes):
+        with self.owner.ble_tx_lock:
+            self.owner.ble_tx_queue += data_bytes
+            return len(data_bytes)
+
+    def read(self, n):
+        with self.owner.ble_rx_lock:
+            data = self.owner.ble_rx_queue[:n]
+            self.owner.ble_rx_queue = self.owner.ble_rx_queue[n:]
+            return data
+
+    def close(self):
+        if self.connected and self.ble_device:
+            RNS.log(f"Disconnecting BLE device from {self.owner}", RNS.LOG_DEBUG)
+            self.must_disconnect = True
+
+            while self.connect_job_running:
+                time.sleep(0.1)
+
+    def __init__(self, owner=None, target_name=None, target_bt_addr=None):
+        self.owner = owner
+        self.target_name = target_name
+        self.target_bt_addr = target_bt_addr
+        self.scan_timeout = BLEConnection.SCAN_TIMEOUT
+        self.ble_device = None
+        self.last_client = None
+        self.connected = False
+        self.running = False
+        self.should_run = False
+        self.must_disconnect = False
+        self.connect_job_running = False
+        self.device_disappeared = False
+
+        import importlib.util
+        if BLEConnection.bleak == None:
+            if importlib.util.find_spec("bleak") != None:
+                import bleak
+                BLEConnection.bleak = bleak
+                
+                import asyncio
+                BLEConnection.asyncio = asyncio
+            else:
+                RNS.log("Using the RNode interface over BLE requires a the \"bleak\" module to be installed.", RNS.LOG_CRITICAL)
+                RNS.log("You can install one with the command: python3 -m pip install bleak", RNS.LOG_CRITICAL)
+                RNS.panic()
+
+        self.should_run = True
+        self.connection_thread = threading.Thread(target=self.connection_job, daemon=True).start()
+
+    def cleanup(self):
+        try:
+            if self.last_client != None:
+                self.asyncio.run(self.last_client.disconnect())
+        except Exception as e:
+            RNS.log(f"Error while disconnecting BLE device on cleanup for {self.owner}", RNS.LOG_ERROR)
+
+        self.should_run = False
+
+    def connection_job(self):
+        while self.should_run:
+            if self.ble_device == None:
+                self.ble_device = self.find_target_device()
+
+            if type(self.ble_device) == self.bleak.backends.device.BLEDevice:
+                if not self.connected:
+                    self.connect_device()
+
+            time.sleep(1)
+
+        self.cleanup()
+        self.running = False
+        RNS.log(f"BLE connection job for {self.owner} ended", RNS.LOG_DEBUG)
+
+    def connect_device(self):
+        if self.ble_device != None and type(self.ble_device) == self.bleak.backends.device.BLEDevice:
+            RNS.log(f"Connecting BLE device {self.ble_device} for {self.owner}...", RNS.LOG_DEBUG)
+
+            async def connect_job():
+                self.connect_job_running = True
+                async with self.bleak.BleakClient(self.ble_device, disconnected_callback=self.device_disconnected) as ble_client:
+                    def handle_rx(device, data):
+                        if self.owner != None:
+                            self.owner.ble_receive(data)
+
+                    self.connected = True
+                    self.ble_device = ble_client
+                    self.last_client = ble_client
+                    self.owner.port = str(f"ble://{ble_client.address}")
+
+                    loop = self.asyncio.get_running_loop()
+                    uart_service = ble_client.services.get_service(BLEConnection.UART_SERVICE_UUID)
+                    rx_characteristic = uart_service.get_characteristic(BLEConnection.UART_RX_CHAR_UUID)
+                    await ble_client.start_notify(BLEConnection.UART_TX_CHAR_UUID, handle_rx)
+
+                    while self.connected:
+                        if self.owner != None and self.owner.ble_waiting():
+                            outbound_data = self.owner.get_ble_waiting(rx_characteristic.max_write_without_response_size)
+                            await ble_client.write_gatt_char(rx_characteristic, outbound_data, response=False)
+                        elif self.must_disconnect:
+                            await ble_client.disconnect()
+                        else:
+                            await self.asyncio.sleep(0.1)
+
+
+            try:
+                self.asyncio.run(connect_job())
+            except Exception as e:
+                RNS.log(f"Could not connect BLE device {self.ble_device} for {self.owner}. Possibly missing authentication.", RNS.LOG_ERROR)
+
+            self.connect_job_running = False
+
+    def device_disconnected(self, device):
+        RNS.log(f"BLE device for {self.owner} disconnected", RNS.LOG_NOTICE)
+        self.connected = False
+        self.ble_device = None
+        self.device_disappeared = True
+
+    def find_target_device(self):
+        RNS.log(f"Searching for attachable BLE device for {self.owner}...", RNS.LOG_EXTREME)
+        def device_filter(device: self.bleak.backends.device.BLEDevice, adv: self.bleak.backends.scanner.AdvertisementData):
+            if BLEConnection.UART_SERVICE_UUID.lower() in adv.service_uuids:
+                if self.device_bonded(device):
+                    if self.target_bt_addr == None and self.target_name == None:
+                        if device.name.startswith("RNode "):
+                            return True
+
+                    if self.target_bt_addr == None or (device.address != None and device.address == self.target_bt_addr):
+                        if self.target_name == None or (device.name != None and device.name == self.target_name):
+                            return True
+
+                else:
+                    if self.target_bt_addr != None and device.address == self.target_bt_addr:
+                        RNS.log(f"Can't connect to target device {self.target_bt_addr} over BLE, device is not bonded", RNS.LOG_ERROR)
+                    
+                    elif self.target_name != None and device.name == self.target_name:
+                        RNS.log(f"Can't connect to target device {self.target_name} over BLE, device is not bonded", RNS.LOG_ERROR)
+
+            return False
+
+        device = None
+        try:
+            device = self.asyncio.run(self.bleak.BleakScanner.find_device_by_filter(device_filter, timeout=self.scan_timeout))
+        except Exception as e:
+            RNS.log(f"Error while finding BLE device for {self.owner}: {e}", RNS.LOG_ERROR)
+            self.should_run = False
+
+        return device
+
+    def device_bonded(self, device):
+        try:
+            if hasattr(device, "details"):
+                if "props" in device.details and "Bonded" in device.details["props"]:
+                    if device.details["props"]["Bonded"] == True:
+                        return True
+        
+        except Exception as e:
+            RNS.log(f"Error while determining device bond status for {device}, the contained exception was: {e}", RNS.LOG_ERROR)
+
+        return False

RNS/Interfaces/SerialInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 from time import sleep
 import sys
 import threading
@@ -42,6 +50,7 @@ class HDLC():
 
 class SerialInterface(Interface):
     MAX_CHUNK = 32768
+    DEFAULT_IFAC_SIZE = 8
 
     owner    = None
     port     = None
@@ -51,8 +60,8 @@ class SerialInterface(Interface):
     stopbits = None
     serial   = None
 
-    def __init__(self, owner, name, port, speed, databits, parity, stopbits):
-        import importlib
+    def __init__(self, owner, configuration):
+        import importlib.util
         if importlib.util.find_spec('serial') != None:
             import serial
         else:
@@ -62,6 +71,17 @@ class SerialInterface(Interface):
 
         super().__init__()
 
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        port = c["port"] if "port" in c else None
+        speed = int(c["speed"]) if "speed" in c else 9600
+        databits = int(c["databits"]) if "databits" in c else 8
+        parity = c["parity"] if "parity" in c else "N"
+        stopbits = int(c["stopbits"]) if "stopbits" in c else 1
+
+        if port == None:
+            raise ValueError("No port specified for serial interface")
+
         self.HW_MTU = 564
         
         self.pyserial = serial
@@ -121,12 +141,12 @@ class SerialInterface(Interface):
         RNS.log("Serial port "+self.port+" is now open", RNS.LOG_VERBOSE)
 
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)            
         self.owner.inbound(data, self)
 
 
-    def processOutgoing(self,data):
+    def process_outgoing(self,data):
         if self.online:
             data = bytes([HDLC.FLAG])+HDLC.escape(data)+bytes([HDLC.FLAG])
             written = self.serial.write(data)
@@ -149,7 +169,7 @@ class SerialInterface(Interface):
 
                     if (in_frame and byte == HDLC.FLAG):
                         in_frame = False
-                        self.processIncoming(data_buffer)
+                        self.process_incoming(data_buffer)
                     elif (byte == HDLC.FLAG):
                         in_frame = True
                         data_buffer = b""

RNS/Interfaces/TCPInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 import socketserver
 import threading
 import platform
@@ -30,6 +38,9 @@ import sys
 import os
 import RNS
 
+class TCPInterface():
+    HW_MTU            = 262144
+
 class HDLC():
     FLAG              = 0x7E
     ESC               = 0x7D
@@ -58,8 +69,13 @@ class KISS():
 class ThreadingTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
     pass
 
+class ThreadingTCP6Server(socketserver.ThreadingMixIn, socketserver.TCPServer):
+    address_family = socket.AF_INET6
+
 class TCPClientInterface(Interface):
     BITRATE_GUESS = 10*1000*1000
+    DEFAULT_IFAC_SIZE = 16
+    AUTOCONFIGURE_MTU = True
 
     RECONNECT_WAIT = 5
     RECONNECT_MAX_TRIES = None
@@ -78,11 +94,21 @@ class TCPClientInterface(Interface):
     I2P_PROBE_INTERVAL = 9
     I2P_PROBES = 5
 
-    def __init__(self, owner, name, target_ip=None, target_port=None, connected_socket=None, max_reconnect_tries=None, kiss_framing=False, i2p_tunneled = False, connect_timeout = None):
+    def __init__(self, owner, configuration, connected_socket=None):
         super().__init__()
+
+        c = Interface.get_config_obj(configuration)
+        name = c["name"]
+        target_ip = c["target_host"] if "target_host" in c and c["target_host"] != None else None
+        target_port = int(c["target_port"]) if "target_port" in c and c["target_host"] != None else None
+        kiss_framing = False
+        if "kiss_framing" in c and c.as_bool("kiss_framing") == True:
+            kiss_framing = True
+        i2p_tunneled = c.as_bool("i2p_tunneled") if "i2p_tunneled" in c else False
+        connect_timeout = c.as_int("connect_timeout") if "connect_timeout" in c else None
+        max_reconnect_tries = c.as_int("max_reconnect_tries") if "max_reconnect_tries" in c else None
         
-        self.HW_MTU = 1064
-        
+        self.HW_MTU           = TCPInterface.HW_MTU
         self.IN               = True
         self.OUT              = False
         self.socket           = None
@@ -177,19 +203,21 @@ class TCPClientInterface(Interface):
             self.socket.setsockopt(socket.IPPROTO_TCP, TCP_KEEPIDLE, int(TCPClientInterface.I2P_PROBE_AFTER))
         
     def detach(self):
+        self.online = False
         if self.socket != None:
             if hasattr(self.socket, "close"):
                 if callable(self.socket.close):
-                    RNS.log("Detaching "+str(self), RNS.LOG_DEBUG)
                     self.detached = True
                     
                     try:
-                        self.socket.shutdown(socket.SHUT_RDWR)
+                        if self.socket != None:
+                            self.socket.shutdown(socket.SHUT_RDWR)
                     except Exception as e:
                         RNS.log("Error while shutting down socket for "+str(self)+": "+str(e))
 
                     try:
-                        self.socket.close()
+                        if self.socket != None:
+                            self.socket.close()
                     except Exception as e:
                         RNS.log("Error while closing socket for "+str(self)+": "+str(e))
 
@@ -200,10 +228,14 @@ class TCPClientInterface(Interface):
             if initial:
                 RNS.log("Establishing TCP connection for "+str(self)+"...", RNS.LOG_DEBUG)
 
-            self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            address_info = socket.getaddrinfo(self.target_ip, self.target_port, proto=socket.IPPROTO_TCP)[0]
+            address_family = address_info[0]
+            target_address = address_info[4]
+
+            self.socket = socket.socket(address_family, socket.SOCK_STREAM)
             self.socket.settimeout(TCPClientInterface.INITIAL_CONNECT_TIMEOUT)
             self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
-            self.socket.connect((self.target_ip, self.target_port))
+            self.socket.connect(target_address)
             self.socket.settimeout(None)
             self.online  = True
 
@@ -265,15 +297,16 @@ class TCPClientInterface(Interface):
             RNS.log("Attempt to reconnect on a non-initiator TCP interface. This should not happen.", RNS.LOG_ERROR)
             raise IOError("Attempt to reconnect on a non-initiator TCP interface")
 
-    def processIncoming(self, data):
-        self.rxb += len(data)
-        if hasattr(self, "parent_interface") and self.parent_interface != None:
-            self.parent_interface.rxb += len(data)
-                    
-        self.owner.inbound(data, self)
+    def process_incoming(self, data):
+        if self.online and not self.detached:
+            self.rxb += len(data)
+            if hasattr(self, "parent_interface") and self.parent_interface != None:
+                self.parent_interface.rxb += len(data)
+                        
+            self.owner.inbound(data, self)
 
-    def processOutgoing(self, data):
-        if self.online:
+    def process_outgoing(self, data):
+        if self.online and not self.detached:
             # while self.writing:
             #     time.sleep(0.01)
 
@@ -301,22 +334,23 @@ class TCPClientInterface(Interface):
         try:
             in_frame = False
             escape = False
+            frame_buffer = b""
+            data_in = b""
             data_buffer = b""
-            command = KISS.CMD_UNKNOWN
 
             while True:
-                data_in = self.socket.recv(4096)
+                if self.socket: data_in = self.socket.recv(4096)
+                else: data_in = b""
                 if len(data_in) > 0:
-                    pointer = 0
-                    while pointer < len(data_in):
-                        byte = data_in[pointer]
-                        pointer += 1
-
-                        if self.kiss_framing:
-                            # Read loop for KISS framing
+                    if self.kiss_framing:
+                        # Read loop for KISS framing
+                        pointer = 0
+                        while pointer < len(data_in):
+                            byte = data_in[pointer]
+                            pointer += 1
                             if (in_frame and byte == KISS.FEND and command == KISS.CMD_DATA):
                                 in_frame = False
-                                self.processIncoming(data_buffer)
+                                self.process_incoming(data_buffer)
                             elif (byte == KISS.FEND):
                                 in_frame = True
                                 command = KISS.CMD_UNKNOWN
@@ -339,25 +373,26 @@ class TCPClientInterface(Interface):
                                             escape = False
                                         data_buffer = data_buffer+bytes([byte])
 
-                        else:
-                            # Read loop for HDLC framing
-                            if (in_frame and byte == HDLC.FLAG):
-                                in_frame = False
-                                self.processIncoming(data_buffer)
-                            elif (byte == HDLC.FLAG):
-                                in_frame = True
-                                data_buffer = b""
-                            elif (in_frame and len(data_buffer) < self.HW_MTU):
-                                if (byte == HDLC.ESC):
-                                    escape = True
+                    else:
+                        # Read loop for standard HDLC framing
+                        frame_buffer += data_in
+                        flags_remaining = True
+                        while flags_remaining:
+                            frame_start = frame_buffer.find(HDLC.FLAG)
+                            if frame_start != -1:
+                                frame_end = frame_buffer.find(HDLC.FLAG, frame_start+1)
+                                if frame_end != -1:
+                                    frame = frame_buffer[frame_start+1:frame_end]
+                                    frame = frame.replace(bytes([HDLC.ESC, HDLC.FLAG ^ HDLC.ESC_MASK]), bytes([HDLC.FLAG]))
+                                    frame = frame.replace(bytes([HDLC.ESC, HDLC.ESC  ^ HDLC.ESC_MASK]), bytes([HDLC.ESC]))
+                                    if len(frame) > RNS.Reticulum.HEADER_MINSIZE:
+                                        self.process_incoming(frame)
+                                    frame_buffer = frame_buffer[frame_end:]
                                 else:
-                                    if (escape):
-                                        if (byte == HDLC.FLAG ^ HDLC.ESC_MASK):
-                                            byte = HDLC.FLAG
-                                        if (byte == HDLC.ESC  ^ HDLC.ESC_MASK):
-                                            byte = HDLC.ESC
-                                        escape = False
-                                    data_buffer = data_buffer+bytes([byte])
+                                    flags_remaining = False
+                            else:
+                                flags_remaining = False
+
                 else:
                     self.online = False
                     if self.initiator and not self.detached:
@@ -394,7 +429,8 @@ class TCPClientInterface(Interface):
         self.IN = False
 
         if hasattr(self, "parent_interface") and self.parent_interface != None:
-            self.parent_interface.clients -= 1
+            while self in self.parent_interface.spawned_interfaces:
+                self.parent_interface.spawned_interfaces.remove(self)
 
         if self in RNS.Transport.interfaces:
             if not self.initiator:
@@ -402,31 +438,80 @@ class TCPClientInterface(Interface):
 
 
     def __str__(self):
-        return "TCPInterface["+str(self.name)+"/"+str(self.target_ip)+":"+str(self.target_port)+"]"
+        if ":" in self.target_ip:
+            ip_str = f"[{self.target_ip}]"
+        else:
+            ip_str = f"{self.target_ip}"
+
+        return "TCPInterface["+str(self.name)+"/"+ip_str+":"+str(self.target_port)+"]"
 
 
 class TCPServerInterface(Interface):
-    BITRATE_GUESS      = 10*1000*1000
+    BITRATE_GUESS     = 10_000_000
+    DEFAULT_IFAC_SIZE = 16
+    AUTOCONFIGURE_MTU = True
 
     @staticmethod
-    def get_address_for_if(name):
-        import RNS.vendor.ifaddr.niwrapper as netinfo
+    def get_address_for_if(name, bind_port, prefer_ipv6=False):
+        from RNS.Interfaces import netinfo
         ifaddr = netinfo.ifaddresses(name)
-        return ifaddr[netinfo.AF_INET][0]["addr"]
+        if len(ifaddr) < 1:
+            raise SystemError(f"No addresses available on specified kernel interface \"{name}\" for TCPServerInterface to bind to")
+
+        if (prefer_ipv6 or not netinfo.AF_INET in ifaddr) and netinfo.AF_INET6 in ifaddr:
+            bind_ip = ifaddr[netinfo.AF_INET6][0]["addr"]
+            if bind_ip.lower().startswith("fe80::"):
+                # We'll need to add the interface as scope for link-local addresses
+                return TCPServerInterface.get_address_for_host(f"{bind_ip}%{name}", bind_port, prefer_ipv6)
+            else:
+                return TCPServerInterface.get_address_for_host(bind_ip, bind_port, prefer_ipv6)
+        elif netinfo.AF_INET in ifaddr:
+            bind_ip = ifaddr[netinfo.AF_INET][0]["addr"]
+            return (bind_ip, bind_port)
+        else:
+            raise SystemError(f"No addresses available on specified kernel interface \"{name}\" for TCPServerInterface to bind to")
 
     @staticmethod
-    def get_broadcast_for_if(name):
-        import RNS.vendor.ifaddr.niwrapper as netinfo
-        ifaddr = netinfo.ifaddresses(name)
-        return ifaddr[netinfo.AF_INET][0]["broadcast"]
+    def get_address_for_host(name, bind_port, prefer_ipv6=False):
+        address_infos = socket.getaddrinfo(name, bind_port, proto=socket.IPPROTO_TCP)
+        address_info  = address_infos[0]
+        for entry in address_infos:
+            if prefer_ipv6 and entry[0] == socket.AF_INET6:
+                address_info = entry; break
+            elif not prefer_ipv6 and entry[0] == socket.AF_INET:
+                address_info = entry; break
 
-    def __init__(self, owner, name, device=None, bindip=None, bindport=None, i2p_tunneled=False):
+        if address_info[0] == socket.AF_INET6:
+            return (name, bind_port, address_info[4][2], address_info[4][3])
+        elif address_info[0] == socket.AF_INET:
+            return (name, bind_port)
+        else:
+            raise SystemError(f"No suitable kernel interface available for address \"{name}\" for TCPServerInterface to bind to")
+
+
+    @property
+    def clients(self):
+        return len(self.spawned_interfaces)
+
+    def __init__(self, owner, configuration):
         super().__init__()
 
-        self.HW_MTU = 1064
+        c            = Interface.get_config_obj(configuration)
+        name         = c["name"]
+        device       = c["device"] if "device" in c else None
+        port         = int(c["port"]) if "port" in c else None
+        bindip       = c["listen_ip"] if "listen_ip" in c else None
+        bindport     = int(c["listen_port"]) if "listen_port" in c else None
+        i2p_tunneled = c.as_bool("i2p_tunneled") if "i2p_tunneled" in c else False
+        prefer_ipv6  = c.as_bool("prefer_ipv6") if "prefer_ipv6" in c else False
+
+        if port != None:
+            bindport = port
+
+        self.HW_MTU = TCPInterface.HW_MTU
 
         self.online = False
-        self.clients = 0
+        self.spawned_interfaces = []
         
         self.IN  = True
         self.OUT = False
@@ -436,24 +521,41 @@ class TCPServerInterface(Interface):
         self.i2p_tunneled = i2p_tunneled
         self.mode         = RNS.Interfaces.Interface.Interface.MODE_FULL
 
-        if device != None:
-            bindip = TCPServerInterface.get_address_for_if(device)
-
-        if (bindip != None and bindport != None):
-            self.receives = True
-            self.bind_ip = bindip
+        if bindport == None:
+            raise SystemError(f"No TCP port configured for interface \"{name}\"")
+        else:
             self.bind_port = bindport
 
+        bind_address = None
+        if device != None:
+            bind_address = TCPServerInterface.get_address_for_if(device, self.bind_port, prefer_ipv6)
+        else:
+            if bindip == None:
+                raise SystemError(f"No TCP bind IP configured for interface \"{name}\"")
+            bind_address = TCPServerInterface.get_address_for_host(bindip, self.bind_port, prefer_ipv6)
+
+        if bind_address != None:
+            self.receives = True
+            self.bind_ip = bind_address[0]
+
             def handlerFactory(callback):
                 def createHandler(*args, **keys):
                     return TCPInterfaceHandler(callback, *args, **keys)
                 return createHandler
 
             self.owner = owner
-            address = (self.bind_ip, self.bind_port)
 
-            ThreadingTCPServer.allow_reuse_address = True
-            self.server = ThreadingTCPServer(address, handlerFactory(self.incoming_connection))
+            if len(bind_address) == 4:
+                try:
+                    ThreadingTCP6Server.allow_reuse_address = True
+                    self.server = ThreadingTCP6Server(bind_address, handlerFactory(self.incoming_connection))
+                except Exception as e:
+                    RNS.log(f"Error while binding IPv6 socket for interface, the contained exception was: {e}", RNS.LOG_ERROR)
+                    raise SystemError("Could not bind IPv6 socket for interface. Please check the specified \"listen_ip\" configuration option")
+            else:
+                ThreadingTCPServer.allow_reuse_address = True
+                self.server = ThreadingTCPServer(bind_address, handlerFactory(self.incoming_connection))
+                self.server.daemon_threads = True
 
             self.bitrate = TCPServerInterface.BITRATE_GUESS
 
@@ -463,17 +565,20 @@ class TCPServerInterface(Interface):
 
             self.online = True
 
+        else:
+            raise SystemError("Insufficient parameters to create TCP listener")
 
     def incoming_connection(self, handler):
         RNS.log("Accepting incoming TCP connection", RNS.LOG_VERBOSE)
-        interface_name = "Client on "+self.name
-        spawned_interface = TCPClientInterface(self.owner, interface_name, target_ip=None, target_port=None, connected_socket=handler.request, i2p_tunneled=self.i2p_tunneled)
+        spawned_configuration = {"name": "Client on "+self.name, "target_host": None, "target_port": None, "i2p_tunneled": self.i2p_tunneled}
+        spawned_interface = TCPClientInterface(self.owner, spawned_configuration, connected_socket=handler.request)
         spawned_interface.OUT = self.OUT
         spawned_interface.IN  = self.IN
         spawned_interface.target_ip = handler.client_address[0]
         spawned_interface.target_port = str(handler.client_address[1])
         spawned_interface.parent_interface = self
         spawned_interface.bitrate = self.bitrate
+        spawned_interface.optimise_mtu()
         
         spawned_interface.ifac_size = self.ifac_size
         spawned_interface.ifac_netname = self.ifac_netname
@@ -503,7 +608,9 @@ class TCPServerInterface(Interface):
         spawned_interface.online = True
         RNS.log("Spawned new TCPClient Interface: "+str(spawned_interface), RNS.LOG_VERBOSE)
         RNS.Transport.interfaces.append(spawned_interface)
-        self.clients += 1
+        while spawned_interface in self.spawned_interfaces:
+            self.spawned_interfaces.remove(spawned_interface)
+        self.spawned_interfaces.append(spawned_interface)
         spawned_interface.read_loop()
 
     def received_announce(self, from_spawned=False):
@@ -512,18 +619,19 @@ class TCPServerInterface(Interface):
     def sent_announce(self, from_spawned=False):
         if from_spawned: self.oa_freq_deque.append(time.time())
 
-    def processOutgoing(self, data):
+    def process_outgoing(self, data):
         pass
 
-
     def detach(self):
+        self.detached = True
+        self.online = False
         if self.server != None:
             if hasattr(self.server, "shutdown"):
                 if callable(self.server.shutdown):
                     try:
                         RNS.log("Detaching "+str(self), RNS.LOG_DEBUG)
                         self.server.shutdown()
-                        self.detached = True
+                        self.server.server_close()
                         self.server = None
 
                     except Exception as e:
@@ -531,7 +639,12 @@ class TCPServerInterface(Interface):
 
 
     def __str__(self):
-        return "TCPServerInterface["+self.name+"/"+self.bind_ip+":"+str(self.bind_port)+"]"
+        if ":" in self.bind_ip:
+            ip_str = f"[{self.bind_ip}]"
+        else:
+            ip_str = f"{self.bind_ip}"
+
+        return "TCPServerInterface["+self.name+"/"+ip_str+":"+str(self.bind_port)+"]"
 
 
 class TCPInterfaceHandler(socketserver.BaseRequestHandler):

RNS/Interfaces/UDPInterface.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -20,7 +28,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from .Interface import Interface
+from RNS.Interfaces.Interface import Interface
 import socketserver
 import threading
 import socket
@@ -31,22 +39,38 @@ import RNS
 
 class UDPInterface(Interface):
     BITRATE_GUESS = 10*1000*1000
+    DEFAULT_IFAC_SIZE = 16
 
     @staticmethod
     def get_address_for_if(name):
-        import RNS.vendor.ifaddr.niwrapper as netinfo
+        from RNS.Interfaces import netinfo
         ifaddr = netinfo.ifaddresses(name)
         return ifaddr[netinfo.AF_INET][0]["addr"]
 
     @staticmethod
     def get_broadcast_for_if(name):
-        import RNS.vendor.ifaddr.niwrapper as netinfo
+        from RNS.Interfaces import netinfo
         ifaddr = netinfo.ifaddresses(name)
         return ifaddr[netinfo.AF_INET][0]["broadcast"]
 
-    def __init__(self, owner, name, device=None, bindip=None, bindport=None, forwardip=None, forwardport=None):
+    def __init__(self, owner, configuration):
         super().__init__()
 
+        c           = Interface.get_config_obj(configuration)
+        name        = c["name"]
+        device      = c["device"] if "device" in c else None
+        port        = int(c["port"]) if "port" in c else None
+        bindip      = c["listen_ip"] if "listen_ip" in c else None
+        bindport    = int(c["listen_port"]) if "listen_port" in c else None
+        forwardip   = c["forward_ip"] if "forward_ip" in c else None
+        forwardport = int(c["forward_port"]) if "forward_port" in c else None
+
+        if port != None:
+            if bindport == None:
+                bindport = port
+            if forwardport == None:
+                forwardport = port
+
         self.HW_MTU = 1064
 
         self.IN  = True
@@ -75,7 +99,7 @@ class UDPInterface(Interface):
             self.owner = owner
             address = (self.bind_ip, self.bind_port)
             socketserver.UDPServer.address_family = socket.AF_INET
-            self.server = socketserver.UDPServer(address, handlerFactory(self.processIncoming))
+            self.server = socketserver.UDPServer(address, handlerFactory(self.process_incoming))
 
             thread = threading.Thread(target=self.server.serve_forever)
             thread.daemon = True
@@ -89,11 +113,11 @@ class UDPInterface(Interface):
             self.forward_port = forwardport
 
 
-    def processIncoming(self, data):
+    def process_incoming(self, data):
         self.rxb += len(data)
         self.owner.inbound(data, self)
 
-    def processOutgoing(self,data):
+    def process_outgoing(self,data):
         try:
             udp_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
             udp_socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)

RNS/Interfaces/__init__.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -23,6 +31,10 @@
 import os
 import glob
 import RNS.Interfaces.Android
+import RNS.Interfaces.util
+import RNS.Interfaces.util.netinfo as netinfo
 
-modules = glob.glob(os.path.dirname(__file__)+"/*.py")
-__all__ = [ os.path.basename(f)[:-3] for f in modules if not f.endswith('__init__.py')]
+py_modules  = glob.glob(os.path.dirname(__file__)+"/*.py")
+pyc_modules = glob.glob(os.path.dirname(__file__)+"/*.pyc")
+modules     = py_modules+pyc_modules
+__all__ = list(set([os.path.basename(f).replace(".pyc", "").replace(".py", "") for f in modules if not (f.endswith("__init__.py") or f.endswith("__init__.pyc"))]))

RNS/Interfaces/util/__init__.py

@@ -0,0 +1,7 @@
+import os
+import glob
+
+py_modules  = glob.glob(os.path.dirname(__file__)+"/*.py")
+pyc_modules = glob.glob(os.path.dirname(__file__)+"/*.pyc")
+modules     = py_modules+pyc_modules
+__all__ = list(set([os.path.basename(f).replace(".pyc", "").replace(".py", "") for f in modules if not (f.endswith("__init__.py") or f.endswith("__init__.pyc"))]))

RNS/Interfaces/util/netinfo.py

@@ -0,0 +1,325 @@
+# MIT License
+#
+# Copyright (c) 2014 Stefan C. Mueller
+# Copyright (c) 2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import os
+import socket
+import ipaddress
+import platform
+import ctypes.util
+import collections
+from typing import List, Iterable, Optional, Tuple, Union
+
+AF_INET6 = socket.AF_INET6.value
+AF_INET = socket.AF_INET.value
+
+def interfaces() -> List[str]:
+    adapters = get_adapters(include_unconfigured=True)
+    return [a.name for a in adapters]
+
+def interface_names_to_indexes() -> dict:
+    adapters = get_adapters(include_unconfigured=True)
+    results = {}
+    for adapter in adapters:
+        results[adapter.name] = adapter.index
+    return results
+
+def interface_name_to_nice_name(ifname) -> str:
+    try:
+        adapters = get_adapters(include_unconfigured=True)
+        for adapter in adapters:
+            if adapter.name == ifname:
+                if hasattr(adapter, "nice_name"):
+                    return adapter.nice_name
+
+    except: return None
+    return None
+
+def ifaddresses(ifname) -> dict:
+    adapters = get_adapters(include_unconfigured=True)
+    ifa = {}
+    for a in adapters:
+        if a.name == ifname:
+            ipv4s = []
+            ipv6s = []
+            for ip in a.ips:
+                t = {}
+                if ip.is_IPv4:
+                    net = ipaddress.ip_network(str(ip.ip)+"/"+str(ip.network_prefix), strict=False)
+                    t["addr"] = ip.ip
+                    t["prefix"] = ip.network_prefix
+                    t["broadcast"] = str(net.broadcast_address)
+                    ipv4s.append(t)
+                if ip.is_IPv6:
+                    t["addr"] = ip.ip[0]
+                    ipv6s.append(t)
+
+            if len(ipv4s) > 0: ifa[AF_INET] = ipv4s
+            if len(ipv6s) > 0: ifa[AF_INET6] = ipv6s
+
+    return ifa
+
+def get_adapters(include_unconfigured=False):
+    if os.name == "posix": return _get_adapters_posix(include_unconfigured=include_unconfigured)
+    elif os.name == "nt":  return _get_adapters_win(include_unconfigured=include_unconfigured)
+    else: raise RuntimeError(f"Unsupported Operating System: {os.name}")
+
+class Adapter(object):
+    def __init__(self, name: str, nice_name: str, ips: List["IP"], index: Optional[int] = None) -> None:
+        self.name = name
+        self.nice_name = nice_name
+        self.ips = ips
+        self.index = index
+
+    def __repr__(self) -> str:
+        return "Adapter(name={name}, nice_name={nice_name}, ips={ips}, index={index})".format(
+            name=repr(self.name), nice_name=repr(self.nice_name), ips=repr(self.ips), index=repr(self.index))
+
+_IPv4Address = str
+_IPv6Address = Tuple[str, int, int]
+class IP(object):
+    def __init__(self, ip: Union[_IPv4Address, _IPv6Address], network_prefix: int, nice_name: str) -> None:
+        self.ip = ip
+        self.network_prefix = network_prefix
+        self.nice_name = nice_name
+
+    @property
+    def is_IPv4(self) -> bool: return not isinstance(self.ip, tuple)
+
+    @property
+    def is_IPv6(self) -> bool: return isinstance(self.ip, tuple)
+
+    def __repr__(self) -> str:
+        return "IP(ip={ip}, network_prefix={network_prefix}, nice_name={nice_name})".format(ip=repr(self.ip), network_prefix=repr(self.network_prefix), nice_name=repr(self.nice_name))
+
+if platform.system() == "Darwin" or "BSD" in platform.system():
+    class sockaddr(ctypes.Structure):
+        _fields_ = [
+            ("sa_len", ctypes.c_uint8),
+            ("sa_familiy", ctypes.c_uint8),
+            ("sa_data", ctypes.c_uint8 * 14)]
+
+    class sockaddr_in(ctypes.Structure):
+        _fields_ = [
+            ("sa_len", ctypes.c_uint8),
+            ("sa_familiy", ctypes.c_uint8),
+            ("sin_port", ctypes.c_uint16),
+            ("sin_addr", ctypes.c_uint8 * 4),
+            ("sin_zero", ctypes.c_uint8 * 8)]
+
+    class sockaddr_in6(ctypes.Structure):
+        _fields_ = [
+            ("sa_len", ctypes.c_uint8),
+            ("sa_familiy", ctypes.c_uint8),
+            ("sin6_port", ctypes.c_uint16),
+            ("sin6_flowinfo", ctypes.c_uint32),
+            ("sin6_addr", ctypes.c_uint8 * 16),
+            ("sin6_scope_id", ctypes.c_uint32)]
+
+else:
+    class sockaddr(ctypes.Structure):  # type: ignore
+        _fields_ = [("sa_familiy", ctypes.c_uint16), ("sa_data", ctypes.c_uint8 * 14)]
+
+    class sockaddr_in(ctypes.Structure):  # type: ignore
+        _fields_ = [
+            ("sin_familiy", ctypes.c_uint16),
+            ("sin_port", ctypes.c_uint16),
+            ("sin_addr", ctypes.c_uint8 * 4),
+            ("sin_zero", ctypes.c_uint8 * 8)]
+
+    class sockaddr_in6(ctypes.Structure):  # type: ignore
+        _fields_ = [
+            ("sin6_familiy", ctypes.c_uint16),
+            ("sin6_port", ctypes.c_uint16),
+            ("sin6_flowinfo", ctypes.c_uint32),
+            ("sin6_addr", ctypes.c_uint8 * 16),
+            ("sin6_scope_id", ctypes.c_uint32)]
+
+def sockaddr_to_ip(sockaddr_ptr: "ctypes.pointer[sockaddr]") -> Optional[Union[_IPv4Address, _IPv6Address]]:
+    if sockaddr_ptr:
+        if sockaddr_ptr[0].sa_familiy == socket.AF_INET:
+            ipv4 = ctypes.cast(sockaddr_ptr, ctypes.POINTER(sockaddr_in))
+            ippacked = bytes(bytearray(ipv4[0].sin_addr))
+            ip = str(ipaddress.ip_address(ippacked))
+            return ip
+        elif sockaddr_ptr[0].sa_familiy == socket.AF_INET6:
+            ipv6 = ctypes.cast(sockaddr_ptr, ctypes.POINTER(sockaddr_in6))
+            flowinfo = ipv6[0].sin6_flowinfo
+            ippacked = bytes(bytearray(ipv6[0].sin6_addr))
+            ip = str(ipaddress.ip_address(ippacked))
+            scope_id = ipv6[0].sin6_scope_id
+            return (ip, flowinfo, scope_id)
+    return None
+
+
+def ipv6_prefixlength(address: ipaddress.IPv6Address) -> int:
+    prefix_length = 0
+    for i in range(address.max_prefixlen):
+        if int(address) >> i & 1: prefix_length = prefix_length + 1
+    return prefix_length
+
+if os.name == "posix":
+    class ifaddrs(ctypes.Structure): pass
+    ifaddrs._fields_ = [
+        ("ifa_next", ctypes.POINTER(ifaddrs)),
+        ("ifa_name", ctypes.c_char_p),
+        ("ifa_flags", ctypes.c_uint),
+        ("ifa_addr", ctypes.POINTER(sockaddr)),
+        ("ifa_netmask", ctypes.POINTER(sockaddr)),]
+
+    libc = ctypes.CDLL(ctypes.util.find_library("socket" if os.uname()[0] == "SunOS" else "c"), use_errno=True) # type: ignore
+
+    def _get_adapters_posix(include_unconfigured: bool = False) -> Iterable[Adapter]:
+        addr0 = addr = ctypes.POINTER(ifaddrs)()
+        retval = libc.getifaddrs(ctypes.byref(addr))
+        if retval != 0:
+            eno = ctypes.get_errno()
+            raise OSError(eno, os.strerror(eno))
+
+        ips = collections.OrderedDict()
+
+        def add_ip(adapter_name: str, ip: Optional[IP]) -> None:
+            if adapter_name not in ips:
+                index = None  # type: Optional[int]
+                try:
+                    index = socket.if_nametoindex(adapter_name) # type: ignore
+                except (OSError, AttributeError): pass
+                ips[adapter_name] = Adapter(adapter_name, adapter_name, [], index=index)
+            if ip is not None:
+                ips[adapter_name].ips.append(ip)
+
+        while addr:
+            name = addr[0].ifa_name.decode(encoding="UTF-8")
+            ip_addr = sockaddr_to_ip(addr[0].ifa_addr)
+            if ip_addr:
+                if addr[0].ifa_netmask and not addr[0].ifa_netmask[0].sa_familiy:
+                    addr[0].ifa_netmask[0].sa_familiy = addr[0].ifa_addr[0].sa_familiy
+                netmask = sockaddr_to_ip(addr[0].ifa_netmask)
+                if isinstance(netmask, tuple):
+                    netmaskStr = str(netmask[0])
+                    prefixlen = ipv6_prefixlength(ipaddress.IPv6Address(netmaskStr))
+                else:
+                    assert netmask is not None, f"sockaddr_to_ip({addr[0].ifa_netmask}) returned None"
+                    netmaskStr = str("0.0.0.0/" + netmask)
+                    prefixlen = ipaddress.IPv4Network(netmaskStr).prefixlen
+                ip = IP(ip_addr, prefixlen, name)
+                add_ip(name, ip)
+            else:
+                if include_unconfigured:
+                    add_ip(name, None)
+            addr = addr[0].ifa_next
+
+        libc.freeifaddrs(addr0)
+        return ips.values()
+
+elif os.name == "nt":
+    from ctypes import wintypes
+    NO_ERROR = 0
+    ERROR_BUFFER_OVERFLOW = 111
+    MAX_ADAPTER_NAME_LENGTH = 256
+    MAX_ADAPTER_DESCRIPTION_LENGTH = 128
+    MAX_ADAPTER_ADDRESS_LENGTH = 8
+    AF_UNSPEC = 0
+
+    class SOCKET_ADDRESS(ctypes.Structure): _fields_ = [("lpSockaddr", ctypes.POINTER(sockaddr)), ("iSockaddrLength", wintypes.INT)]
+    class IP_ADAPTER_UNICAST_ADDRESS(ctypes.Structure): pass
+    IP_ADAPTER_UNICAST_ADDRESS._fields_ = [
+        ("Length", wintypes.ULONG),
+        ("Flags", wintypes.DWORD),
+        ("Next", ctypes.POINTER(IP_ADAPTER_UNICAST_ADDRESS)),
+        ("Address", SOCKET_ADDRESS),
+        ("PrefixOrigin", ctypes.c_uint),
+        ("SuffixOrigin", ctypes.c_uint),
+        ("DadState", ctypes.c_uint),
+        ("ValidLifetime", wintypes.ULONG),
+        ("PreferredLifetime", wintypes.ULONG),
+        ("LeaseLifetime", wintypes.ULONG),
+        ("OnLinkPrefixLength", ctypes.c_uint8)]
+
+    class IP_ADAPTER_ADDRESSES(ctypes.Structure): pass
+    IP_ADAPTER_ADDRESSES._fields_ = [
+        ("Length", wintypes.ULONG),
+        ("IfIndex", wintypes.DWORD),
+        ("Next", ctypes.POINTER(IP_ADAPTER_ADDRESSES)),
+        ("AdapterName", ctypes.c_char_p),
+        ("FirstUnicastAddress", ctypes.POINTER(IP_ADAPTER_UNICAST_ADDRESS)),
+        ("FirstAnycastAddress", ctypes.c_void_p),
+        ("FirstMulticastAddress", ctypes.c_void_p),
+        ("FirstDnsServerAddress", ctypes.c_void_p),
+        ("DnsSuffix", ctypes.c_wchar_p),
+        ("Description", ctypes.c_wchar_p),
+        ("FriendlyName", ctypes.c_wchar_p)]
+
+    iphlpapi = ctypes.windll.LoadLibrary("Iphlpapi") # type: ignore
+
+    def _enumerate_interfaces_of_adapter_win(nice_name: str, address: IP_ADAPTER_UNICAST_ADDRESS) -> Iterable[IP]:
+        # Iterate through linked list and fill list
+        addresses = [] # type: List[IP_ADAPTER_UNICAST_ADDRESS]
+        while True:
+            addresses.append(address)
+            if not address.Next: break
+            address = address.Next[0]
+
+        for address in addresses:
+            ip = sockaddr_to_ip(address.Address.lpSockaddr)
+            assert ip is not None, f"sockaddr_to_ip({address.Address.lpSockaddr}) returned None"
+            network_prefix = address.OnLinkPrefixLength
+            yield IP(ip, network_prefix, nice_name)
+
+    def _get_adapters_win(include_unconfigured: bool = False) -> Iterable[Adapter]:
+        addressbuffersize = wintypes.ULONG(15 * 1024)
+        retval = ERROR_BUFFER_OVERFLOW
+        while retval == ERROR_BUFFER_OVERFLOW:
+            addressbuffer = ctypes.create_string_buffer(addressbuffersize.value)
+            retval = iphlpapi.GetAdaptersAddresses(
+                wintypes.ULONG(AF_UNSPEC),
+                wintypes.ULONG(0),
+                None,
+                ctypes.byref(addressbuffer),
+                ctypes.byref(addressbuffersize))
+
+        if retval != NO_ERROR:
+            raise ctypes.WinError() # type: ignore
+
+        # Iterate through adapters and fill array
+        address_infos = []  # type: List[IP_ADAPTER_ADDRESSES]
+        address_info = IP_ADAPTER_ADDRESSES.from_buffer(addressbuffer)
+        while True:
+            address_infos.append(address_info)
+            if not address_info.Next: break
+            address_info = address_info.Next[0]
+
+        # Iterate through unicast addresses
+        result = [] # type: List[Adapter]
+        for adapter_info in address_infos:
+            name = adapter_info.AdapterName.decode()
+            nice_name = adapter_info.Description
+            index = adapter_info.IfIndex
+
+            if adapter_info.FirstUnicastAddress:
+                ips = _enumerate_interfaces_of_adapter_win(adapter_info.FriendlyName, adapter_info.FirstUnicastAddress[0])
+                ips = list(ips)
+                result.append(Adapter(name, nice_name, ips, index=index))
+            
+            elif include_unconfigured: result.append(Adapter(name, nice_name, [], index=index))
+
+        return result

RNS/Link.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors.
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -21,17 +29,18 @@
 # SOFTWARE.
 
 from RNS.Cryptography import X25519PrivateKey, X25519PublicKey, Ed25519PrivateKey, Ed25519PublicKey
-from RNS.Cryptography import Fernet
+from RNS.Cryptography import Token
 from RNS.Channel import Channel, LinkChannelOutlet
 
 from time import sleep
 from .vendor import umsgpack as umsgpack
 import threading
 import inspect
+import struct
 import math
 import time
 import RNS
-
+import io
 
 class LinkCallbacks:
     def __init__(self):
@@ -61,27 +70,33 @@ class Link:
     ECPUBSIZE         = 32+32
     KEYSIZE           = 32
 
-    MDU = math.floor((RNS.Reticulum.MTU-RNS.Reticulum.IFAC_MIN_SIZE-RNS.Reticulum.HEADER_MINSIZE-RNS.Identity.FERNET_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
+    MDU = math.floor((RNS.Reticulum.MTU-RNS.Reticulum.IFAC_MIN_SIZE-RNS.Reticulum.HEADER_MINSIZE-RNS.Identity.TOKEN_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
 
     ESTABLISHMENT_TIMEOUT_PER_HOP = RNS.Reticulum.DEFAULT_PER_HOP_TIMEOUT
     """
     Timeout for link establishment in seconds per hop to destination.
     """
 
-    TRAFFIC_TIMEOUT_FACTOR = 6
+    LINK_MTU_SIZE            = 3
+    TRAFFIC_TIMEOUT_MIN_MS   = 5
+    TRAFFIC_TIMEOUT_FACTOR   = 6
+    KEEPALIVE_MAX_RTT        = 1.75
     KEEPALIVE_TIMEOUT_FACTOR = 4
     """
     RTT timeout factor used in link timeout calculation.
     """
-    STALE_GRACE = 2
+    STALE_GRACE = 5
     """
     Grace period in seconds used in link timeout calculation.
     """
-    KEEPALIVE = 360
+    KEEPALIVE_MAX = 360
+    KEEPALIVE_MIN = 5
+    KEEPALIVE     = KEEPALIVE_MAX
     """
-    Interval for sending keep-alive packets on established links in seconds.
+    Default interval for sending keep-alive packets on established links in seconds.
     """
-    STALE_TIME = 2*KEEPALIVE
+    STALE_FACTOR = 2
+    STALE_TIME = STALE_FACTOR*KEEPALIVE
     """
     If no traffic or keep-alive packets are received within this period, the
     link will be marked as stale, and a final keep-alive packet will be sent.
@@ -90,31 +105,109 @@ class Link:
     and will be torn down.
     """
 
-    PENDING   = 0x00
-    HANDSHAKE = 0x01
-    ACTIVE    = 0x02
-    STALE     = 0x03
-    CLOSED    = 0x04
+    WATCHDOG_MAX_SLEEP  = 5
 
-    TIMEOUT            = 0x01
-    INITIATOR_CLOSED   = 0x02
-    DESTINATION_CLOSED = 0x03
+    PENDING             = 0x00
+    HANDSHAKE           = 0x01
+    ACTIVE              = 0x02
+    STALE               = 0x03
+    CLOSED              = 0x04
 
-    ACCEPT_NONE = 0x00
-    ACCEPT_APP  = 0x01
-    ACCEPT_ALL  = 0x02
+    TIMEOUT             = 0x01
+    INITIATOR_CLOSED    = 0x02
+    DESTINATION_CLOSED  = 0x03
+
+    ACCEPT_NONE         = 0x00
+    ACCEPT_APP          = 0x01
+    ACCEPT_ALL          = 0x02
     resource_strategies = [ACCEPT_NONE, ACCEPT_APP, ACCEPT_ALL]
 
+    MODE_AES128_CBC     = 0x00
+    MODE_AES256_CBC     = 0x01
+    MODE_AES256_GCM     = 0x02
+    MODE_OTP_RESERVED   = 0x03
+    MODE_PQ_RESERVED_1  = 0x04
+    MODE_PQ_RESERVED_2  = 0x05
+    MODE_PQ_RESERVED_3  = 0x06
+    MODE_PQ_RESERVED_4  = 0x07
+    ENABLED_MODES       = [MODE_AES128_CBC, MODE_AES256_CBC]
+    MODE_DEFAULT        =  MODE_AES256_CBC
+    MODE_DESCRIPTIONS   = {MODE_AES128_CBC: "AES_128_CBC",
+                           MODE_AES256_CBC: "AES_256_CBC",
+                           MODE_AES256_GCM: "MODE_AES256_GCM",
+                           MODE_OTP_RESERVED: "MODE_OTP_RESERVED",
+                           MODE_PQ_RESERVED_1: "MODE_PQ_RESERVED_1",
+                           MODE_PQ_RESERVED_2: "MODE_PQ_RESERVED_2",
+                           MODE_PQ_RESERVED_3: "MODE_PQ_RESERVED_3",
+                           MODE_PQ_RESERVED_4: "MODE_PQ_RESERVED_4"}
+
+    MTU_BYTEMASK        = 0x1FFFFF
+    MODE_BYTEMASK       = 0xE0
+
+    @staticmethod
+    def signalling_bytes(mtu, mode):
+        if not mode in Link.ENABLED_MODES: raise TypeError(f"Requested link mode {Link.MODE_DESCRIPTIONS[mode]} not enabled")
+        signalling_value = (mtu & Link.MTU_BYTEMASK)+(((mode<<5) & Link.MODE_BYTEMASK)<<16)
+        return struct.pack(">I", signalling_value)[1:]
+
+    @staticmethod
+    def mtu_from_lr_packet(packet):
+        if len(packet.data) == Link.ECPUBSIZE+Link.LINK_MTU_SIZE:
+            return (packet.data[Link.ECPUBSIZE] << 16) + (packet.data[Link.ECPUBSIZE+1] << 8) + (packet.data[Link.ECPUBSIZE+2]) & Link.MTU_BYTEMASK
+        else: return None
+
+    @staticmethod
+    def mtu_from_lp_packet(packet):
+        if len(packet.data) == RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2+Link.LINK_MTU_SIZE:
+            mtu_bytes = packet.data[RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2:RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2+Link.LINK_MTU_SIZE]
+            return (mtu_bytes[0] << 16) + (mtu_bytes[1] << 8) + (mtu_bytes[2]) & Link.MTU_BYTEMASK
+        else: return None
+
+    @staticmethod
+    def mode_byte(mode):
+        if mode in Link.ENABLED_MODES: return (mode << 5) & Link.MODE_BYTEMASK
+        else: raise TypeError(f"Requested link mode {mode} not enabled")
+
+    @staticmethod
+    def mode_from_lr_packet(packet):
+        if len(packet.data) > Link.ECPUBSIZE:
+            mode = (packet.data[Link.ECPUBSIZE] & Link.MODE_BYTEMASK) >> 5
+            return mode
+        else: return Link.MODE_DEFAULT
+
+    @staticmethod
+    def mode_from_lp_packet(packet):
+        if len(packet.data) > RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2:
+            mode = packet.data[RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2] >> 5
+            return mode
+        else: return Link.MODE_DEFAULT
+
     @staticmethod
     def validate_request(owner, data, packet):
-        if len(data) == (Link.ECPUBSIZE):
+        if len(data) == Link.ECPUBSIZE or len(data) == Link.ECPUBSIZE+Link.LINK_MTU_SIZE:
             try:
                 link = Link(owner = owner, peer_pub_bytes=data[:Link.ECPUBSIZE//2], peer_sig_pub_bytes=data[Link.ECPUBSIZE//2:Link.ECPUBSIZE])
                 link.set_link_id(packet)
+
+                if len(data) == Link.ECPUBSIZE+Link.LINK_MTU_SIZE:
+                    RNS.log("Link request includes MTU signalling", RNS.LOG_DEBUG) # TODO: Remove debug
+                    try:
+                        link.mtu = Link.mtu_from_lr_packet(packet) or Reticulum.MTU
+                    except Exception as e:
+                        RNS.trace_exception(e)
+                        link.mtu = RNS.Reticulum.MTU
+
+                link.mode = Link.mode_from_lr_packet(packet)
+                
+                # TODO: Remove debug
+                RNS.log(f"Incoming link request with mode {Link.MODE_DESCRIPTIONS[link.mode]}", RNS.LOG_DEBUG)
+
+                link.update_mdu()
                 link.destination = packet.destination
                 link.establishment_timeout = Link.ESTABLISHMENT_TIMEOUT_PER_HOP * max(1, packet.hops) + Link.KEEPALIVE
                 link.establishment_cost += len(packet.raw)
-                RNS.log("Validating link request "+RNS.prettyhexrep(link.link_id), RNS.LOG_VERBOSE)
+                RNS.log(f"Validating link request {RNS.prettyhexrep(link.link_id)}", RNS.LOG_DEBUG)
+                RNS.log(f"Link MTU configured to {RNS.prettysize(link.mtu)}", RNS.LOG_EXTREME)
                 RNS.log(f"Establishment timeout is {RNS.prettytime(link.establishment_timeout)} for incoming link request "+RNS.prettyhexrep(link.link_id), RNS.LOG_EXTREME)
                 link.handshake()
                 link.attached_interface = packet.receiving_interface
@@ -122,33 +215,39 @@ class Link:
                 link.request_time = time.time()
                 RNS.Transport.register_link(link)
                 link.last_inbound = time.time()
+                link.__update_phy_stats(packet, force_update=True)
                 link.start_watchdog()
-                
-                RNS.log("Incoming link request "+str(link)+" accepted", RNS.LOG_DEBUG)
+
+                RNS.log("Incoming link request "+str(link)+" accepted on "+str(link.attached_interface), RNS.LOG_DEBUG)
                 return link
 
             except Exception as e:
-                RNS.log("Validating link request failed", RNS.LOG_VERBOSE)
-                RNS.log("exc: "+str(e))
+                RNS.log(f"Validating link request failed: {e}", RNS.LOG_VERBOSE)
                 return None
 
         else:
-            RNS.log("Invalid link request payload size, dropping request", RNS.LOG_DEBUG)
+            RNS.log(f"Invalid link request payload size of {len(data)} bytes, dropping request", RNS.LOG_DEBUG)
             return None
 
 
-    def __init__(self, destination=None, established_callback = None, closed_callback = None, owner=None, peer_pub_bytes = None, peer_sig_pub_bytes = None):
-        if destination != None and destination.type != RNS.Destination.SINGLE:
-            raise TypeError("Links can only be established to the \"single\" destination type")
+    def __init__(self, destination=None, established_callback=None, closed_callback=None, owner=None, peer_pub_bytes=None, peer_sig_pub_bytes=None, mode=MODE_DEFAULT):
+        if destination != None and destination.type != RNS.Destination.SINGLE: raise TypeError("Links can only be established to the \"single\" destination type")
+        self.mode = mode
         self.rtt = None
+        self.mtu = RNS.Reticulum.MTU
         self.establishment_cost = 0
+        self.establishment_rate = None
+        self.expected_rate = None
         self.callbacks = LinkCallbacks()
         self.resource_strategy = Link.ACCEPT_NONE
+        self.last_resource_window = None
+        self.last_resource_eifr = None
         self.outgoing_resources = []
         self.incoming_resources = []
         self.pending_requests   = []
         self.last_inbound = 0
         self.last_outbound = 0
+        self.last_keepalive = 0
         self.last_proof = 0
         self.last_data = 0
         self.tx = 0
@@ -168,22 +267,25 @@ class Link:
         self.type = RNS.Destination.LINK
         self.owner = owner
         self.destination = destination
+        self.expected_hops = None
         self.attached_interface = None
         self.__remote_identity = None
         self.__track_phy_stats = False
         self._channel = None
+
         if self.destination == None:
             self.initiator = False
             self.prv     = X25519PrivateKey.generate()
             self.sig_prv = self.owner.identity.sig_prv
         else:
             self.initiator = True
+            self.expected_hops = RNS.Transport.hops_to(self.destination.hash)
             self.establishment_timeout  = RNS.Reticulum.get_instance().get_first_hop_timeout(destination.hash)
             self.establishment_timeout += Link.ESTABLISHMENT_TIMEOUT_PER_HOP * max(1, RNS.Transport.hops_to(destination.hash))
             self.prv     = X25519PrivateKey.generate()
             self.sig_prv = Ed25519PrivateKey.generate()
 
-        self.fernet  = None
+        self.token  = None
         
         self.pub = self.prv.public_key()
         self.pub_bytes = self.pub.public_bytes()
@@ -203,8 +305,15 @@ class Link:
         if closed_callback != None:
             self.set_link_closed_callback(closed_callback)
 
-        if (self.initiator):
-            self.request_data = self.pub_bytes+self.sig_pub_bytes
+        if self.initiator:
+            signalling_bytes = b""
+            nh_hw_mtu = RNS.Transport.next_hop_interface_hw_mtu(destination.hash)
+            if RNS.Reticulum.link_mtu_discovery() and nh_hw_mtu:
+                signalling_bytes = Link.signalling_bytes(nh_hw_mtu, self.mode)
+                RNS.log(f"Signalling link MTU of {RNS.prettysize(nh_hw_mtu)} for link", RNS.LOG_DEBUG) # TODO: Remove debug
+            else: signalling_bytes = Link.signalling_bytes(RNS.Reticulum.MTU, self.mode)
+            RNS.log(f"Establishing link with mode {Link.MODE_DESCRIPTIONS[self.mode]}", RNS.LOG_DEBUG) # TODO: Remove debug
+            self.request_data = self.pub_bytes+self.sig_pub_bytes+signalling_bytes
             self.packet = RNS.Packet(destination, self.request_data, packet_type=RNS.Packet.LINKREQUEST)
             self.packet.pack()
             self.establishment_cost += len(self.packet.raw)
@@ -228,8 +337,17 @@ class Link:
         if not hasattr(self.peer_pub, "curve"):
             self.peer_pub.curve = Link.CURVE
 
+    @staticmethod
+    def link_id_from_lr_packet(packet):
+        hashable_part = packet.get_hashable_part()
+        if len(packet.data) > Link.ECPUBSIZE:
+            diff = len(packet.data) - Link.ECPUBSIZE
+            hashable_part = hashable_part[:-diff]
+
+        return RNS.Identity.truncated_hash(hashable_part)
+
     def set_link_id(self, packet):
-        self.link_id = packet.getTruncatedHash()
+        self.link_id = Link.link_id_from_lr_packet(packet)
         self.hash = self.link_id
 
     def handshake(self):
@@ -237,21 +355,25 @@ class Link:
             self.status = Link.HANDSHAKE
             self.shared_key = self.prv.exchange(self.peer_pub)
 
+            if   self.mode == Link.MODE_AES128_CBC: derived_key_length = 32
+            elif self.mode == Link.MODE_AES256_CBC: derived_key_length = 64
+            else: raise TypeError(f"Invalid link mode {self.mode} on {self}")
+
             self.derived_key = RNS.Cryptography.hkdf(
-                length=32,
+                length=derived_key_length,
                 derive_from=self.shared_key,
                 salt=self.get_salt(),
-                context=self.get_context(),
-            )
-        else:
-            RNS.log("Handshake attempt on "+str(self)+" with invalid state "+str(self.status), RNS.LOG_ERROR)
+                context=self.get_context())
+
+        else: RNS.log("Handshake attempt on "+str(self)+" with invalid state "+str(self.status), RNS.LOG_ERROR)
 
 
     def prove(self):
-        signed_data = self.link_id+self.pub_bytes+self.sig_pub_bytes
+        signalling_bytes = Link.signalling_bytes(self.mtu, self.mode)
+        signed_data = self.link_id+self.pub_bytes+self.sig_pub_bytes+signalling_bytes
         signature = self.owner.identity.sign(signed_data)
 
-        proof_data = signature+self.pub_bytes
+        proof_data = signature+self.pub_bytes+signalling_bytes
         proof = RNS.Packet(self, proof_data, packet_type=RNS.Packet.PROOF, context=RNS.Packet.LRPROOF)
         proof.send()
         self.establishment_cost += len(proof.raw)
@@ -274,6 +396,17 @@ class Link:
     def validate_proof(self, packet):
         try:
             if self.status == Link.PENDING:
+                signalling_bytes = b""
+                confirmed_mtu = None
+                mode = Link.mode_from_lp_packet(packet)
+                RNS.log(f"Validating link request proof with mode {Link.MODE_DESCRIPTIONS[mode]}", RNS.LOG_DEBUG) # TODO: Remove debug
+                if mode != self.mode: raise TypeError(f"Invalid link mode {mode} in link request proof")
+                if len(packet.data) == RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2+Link.LINK_MTU_SIZE:
+                    confirmed_mtu = Link.mtu_from_lp_packet(packet)
+                    signalling_bytes = Link.signalling_bytes(confirmed_mtu, mode)
+                    packet.data = packet.data[:RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2]
+                    RNS.log(f"Destination confirmed link MTU of {RNS.prettysize(confirmed_mtu)}", RNS.LOG_DEBUG) # TODO: Remove debug
+
                 if self.initiator and len(packet.data) == RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2:
                     peer_pub_bytes = packet.data[RNS.Identity.SIGLENGTH//8:RNS.Identity.SIGLENGTH//8+Link.ECPUBSIZE//2]
                     peer_sig_pub_bytes = self.destination.identity.get_public_key()[Link.ECPUBSIZE//2:Link.ECPUBSIZE]
@@ -281,7 +414,7 @@ class Link:
                     self.handshake()
 
                     self.establishment_cost += len(packet.raw)
-                    signed_data = self.link_id+self.peer_pub_bytes+self.peer_sig_pub_bytes
+                    signed_data = self.link_id+self.peer_pub_bytes+self.peer_sig_pub_bytes+signalling_bytes
                     signature = packet.data[:RNS.Identity.SIGLENGTH//8]
                     
                     if self.destination.identity.validate(signature, signed_data):
@@ -291,19 +424,24 @@ class Link:
                         self.rtt = time.time() - self.request_time
                         self.attached_interface = packet.receiving_interface
                         self.__remote_identity = self.destination.identity
+                        self.mtu = confirmed_mtu or RNS.Reticulum.MTU
+                        self.update_mdu()
                         self.status = Link.ACTIVE
                         self.activated_at = time.time()
                         self.last_proof = self.activated_at
                         RNS.Transport.activate_link(self)
-                        RNS.log("Link "+str(self)+" established with "+str(self.destination)+", RTT is "+str(round(self.rtt, 3))+"s", RNS.LOG_VERBOSE)
+                        RNS.log("Link "+str(self)+" established with "+str(self.destination)+", RTT is "+RNS.prettyshorttime(self.rtt), RNS.LOG_DEBUG)
                         
                         if self.rtt != None and self.establishment_cost != None and self.rtt > 0 and self.establishment_cost > 0:
                             self.establishment_rate = self.establishment_cost/self.rtt
 
+                        self.__update_keepalive()
+
                         rtt_data = umsgpack.packb(self.rtt)
                         rtt_packet = RNS.Packet(self, rtt_data, context=RNS.Packet.LRRTT)
                         rtt_packet.send()
                         self.had_outbound()
+                        self.__update_phy_stats(packet)
 
                         if self.callbacks.link_established != None:
                             thread = threading.Thread(target=self.callbacks.link_established, args=(self,))
@@ -355,7 +493,7 @@ class Link:
         if timeout == None:
             timeout = self.rtt * self.traffic_timeout_factor + RNS.Resource.RESPONSE_MAX_GRACE_TIME*1.125
 
-        if len(packed_request) <= Link.MDU:
+        if len(packed_request) <= self.mdu:
             request_packet   = RNS.Packet(self, packed_request, RNS.Packet.DATA, context = RNS.Packet.REQUEST)
             packet_receipt   = request_packet.send()
 
@@ -389,6 +527,10 @@ class Link:
             )
 
 
+    def update_mdu(self):
+        self.mdu = self.mtu - RNS.Reticulum.HEADER_MAXSIZE - RNS.Reticulum.IFAC_MIN_SIZE
+        self.mdu = math.floor((self.mtu-RNS.Reticulum.IFAC_MIN_SIZE-RNS.Reticulum.HEADER_MINSIZE-RNS.Identity.TOKEN_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
+
     def rtt_packet(self, packet):
         try:
             measured_rtt = time.time() - self.request_time
@@ -402,6 +544,8 @@ class Link:
                 if self.rtt != None and self.establishment_cost != None and self.rtt > 0 and self.establishment_cost > 0:
                     self.establishment_rate = self.establishment_cost/self.rtt
 
+                self.__update_keepalive()
+
                 try:
                     if self.owner.callbacks.link_established != None:
                             self.owner.callbacks.link_established(self)
@@ -430,19 +574,28 @@ class Link:
         """
         :returns: The physical layer *Received Signal Strength Indication* if available, otherwise ``None``. Physical layer statistics must be enabled on the link for this method to return a value.
         """
-        return self.rssi
+        if self.__track_phy_stats:
+            return self.rssi
+        else:
+            return None
 
     def get_snr(self):
         """
         :returns: The physical layer *Signal-to-Noise Ratio* if available, otherwise ``None``. Physical layer statistics must be enabled on the link for this method to return a value.
         """
-        return self.rssi
+        if self.__track_phy_stats:
+            return self.snr
+        else:
+            return None
 
     def get_q(self):
         """
         :returns: The physical layer *Link Quality* if available, otherwise ``None``. Physical layer statistics must be enabled on the link for this method to return a value.
         """
-        return self.rssi
+        if self.__track_phy_stats:
+            return self.q
+        else:
+            return None
 
     def get_establishment_rate(self):
         """
@@ -453,12 +606,54 @@ class Link:
         else:
             return None
 
+    def get_mtu(self):
+        """
+        :returns: The MTU of an established link.
+        """
+        if self.status == Link.ACTIVE:
+            return self.mtu
+        else:
+            return None
+
+    def get_mdu(self):
+        """
+        :returns: The packet MDU of an established link.
+        """
+        if self.status == Link.ACTIVE:
+            return self.mdu
+        else:
+            return None
+
+    def get_expected_rate(self):
+        """
+        :returns: The packet expected in-flight data rate of an established link.
+        """
+        if self.status == Link.ACTIVE:
+            return self.expected_rate
+        else:
+            return None
+
+    def get_mode(self):
+        """
+        :returns: The mode of an established link.
+        """
+        return self.mode
+
     def get_salt(self):
         return self.link_id
 
     def get_context(self):
         return None
 
+    def get_age(self):
+        """
+        :returns: The time in seconds since this link was established.
+        """
+        if self.activated_at:
+            return time.time() - self.activated_at
+        else:
+            return None
+
     def no_inbound_for(self):
         """
         :returns: The time in seconds since last inbound packet on the link. This includes keepalive packets.
@@ -493,23 +688,23 @@ class Link:
 
     def had_outbound(self, is_keepalive=False):
         self.last_outbound = time.time()
-        if not is_keepalive:
-            self.last_data = self.last_outbound
+        if not is_keepalive: self.last_data = self.last_outbound
+        else:                self.last_keepalive = self.last_outbound
+
+    def __teardown_packet(self):
+        teardown_packet = RNS.Packet(self, self.link_id, context=RNS.Packet.LINKCLOSE)
+        teardown_packet.send()
+        self.had_outbound()
 
     def teardown(self):
         """
         Closes the link and purges encryption keys. New keys will
         be used if a new link to the same destination is established.
         """
-        if self.status != Link.PENDING and self.status != Link.CLOSED:
-            teardown_packet = RNS.Packet(self, self.link_id, context=RNS.Packet.LINKCLOSE)
-            teardown_packet.send()
-            self.had_outbound()
+        if self.status != Link.PENDING and self.status != Link.CLOSED: self.__teardown_packet()
         self.status = Link.CLOSED
-        if self.initiator:
-            self.teardown_reason = Link.INITIATOR_CLOSED
-        else:
-            self.teardown_reason = Link.DESTINATION_CLOSED
+        if self.initiator: self.teardown_reason = Link.INITIATOR_CLOSED
+        else: self.teardown_reason = Link.DESTINATION_CLOSED
         self.link_closed()
 
     def teardown_packet(self, packet):
@@ -596,9 +791,10 @@ class Link:
                 elif self.status == Link.ACTIVE:
                     activated_at = self.activated_at if self.activated_at != None else 0
                     last_inbound = max(max(self.last_inbound, self.last_proof), activated_at)
+                    now = time.time()
 
-                    if time.time() >= last_inbound + self.keepalive:
-                        if self.initiator:
+                    if now >= last_inbound + self.keepalive:
+                        if self.initiator and now >= self.last_keepalive + self.keepalive:
                             self.send_keepalive()
 
                         if time.time() >= last_inbound + self.stale_time:
@@ -612,6 +808,7 @@ class Link:
 
                 elif self.status == Link.STALE:
                     sleep_time = 0.001
+                    self.__teardown_packet()
                     self.status = Link.CLOSED
                     self.teardown_reason = Link.TIMEOUT
                     self.link_closed()
@@ -624,11 +821,17 @@ class Link:
                     self.teardown()
                     sleep_time = 0.1
 
+                sleep_time = min(sleep_time, Link.WATCHDOG_MAX_SLEEP)
                 sleep(sleep_time)
 
+                if not self.__track_phy_stats:
+                    self.rssi = None
+                    self.snr  = None
+                    self.q    = None
 
-    def __update_phy_stats(self, packet, query_shared = True):
-        if self.__track_phy_stats:
+
+    def __update_phy_stats(self, packet, query_shared = True, force_update = False):
+        if self.__track_phy_stats or force_update:
             if query_shared:
                 reticulum = RNS.Reticulum.get_instance()
                 if packet.rssi == None: packet.rssi = reticulum.get_packet_rssi(packet.packet_hash)
@@ -641,6 +844,10 @@ class Link:
                 self.snr = packet.snr
             if packet.q != None:
                 self.q = packet.q
+
+    def __update_keepalive(self):
+        self.keepalive = max(min(self.rtt*(Link.KEEPALIVE_MAX/Link.KEEPALIVE_MAX_RTT), Link.KEEPALIVE_MAX), Link.KEEPALIVE_MIN)
+        self.stale_time = self.keepalive * Link.STALE_FACTOR
     
     def send_keepalive(self):
         keepalive_packet = RNS.Packet(self, bytes([0xFF]), context=RNS.Packet.KEEPALIVE)
@@ -659,6 +866,7 @@ class Link:
                 response_generator = request_handler[1]
                 allow              = request_handler[2]
                 allowed_list       = request_handler[3]
+                auto_compress      = request_handler[4]
 
                 allowed = False
                 if not allow == RNS.Destination.ALLOW_NONE:
@@ -677,18 +885,29 @@ class Link:
                     else:
                         raise TypeError("Invalid signature for response generator callback")
 
-                    if response != None:
-                        packed_response = umsgpack.packb([request_id, response])
+                    file_response = False
+                    file_handle   = None
+                    if type(response) == list or type(response) == tuple:
+                        metadata = None
+                        if len(response) > 0 and type(response[0]) == io.BufferedReader:
+                            if len(response) > 1: metadata = response[1]
+                            file_handle = response[0]
+                            file_response = True
 
-                        if len(packed_response) <= Link.MDU:
-                            RNS.Packet(self, packed_response, RNS.Packet.DATA, context = RNS.Packet.RESPONSE).send()
+                    if response != None:
+                        if file_response:
+                            response_resource = RNS.Resource(file_handle, self, metadata=metadata, request_id = request_id, is_response = True, auto_compress=auto_compress)
                         else:
-                            response_resource = RNS.Resource(packed_response, self, request_id = request_id, is_response = True)
+                            packed_response = umsgpack.packb([request_id, response])
+                            if len(packed_response) <= self.mdu:
+                                RNS.Packet(self, packed_response, RNS.Packet.DATA, context = RNS.Packet.RESPONSE).send()
+                            else:
+                                response_resource = RNS.Resource(packed_response, self, request_id = request_id, is_response = True, auto_compress=auto_compress)
                 else:
                     identity_string = str(self.get_remote_identity()) if self.get_remote_identity() != None else "<Unknown>"
                     RNS.log("Request "+RNS.prettyhexrep(request_id)+" from "+identity_string+" not allowed for: "+str(path), RNS.LOG_DEBUG)
 
-    def handle_response(self, request_id, response_data, response_size, response_transfer_size):
+    def handle_response(self, request_id, response_data, response_size, response_transfer_size, metadata=None):
         if self.status == Link.ACTIVE:
             remove = None
             for pending_request in self.pending_requests:
@@ -699,7 +918,7 @@ class Link:
                         if pending_request.response_transfer_size == None:
                             pending_request.response_transfer_size = 0
                         pending_request.response_transfer_size += response_transfer_size
-                        pending_request.response_received(response_data)
+                        pending_request.response_received(response_data, metadata)
                     except Exception as e:
                         RNS.log("Error occurred while handling response. The contained exception was: "+str(e), RNS.LOG_ERROR)
 
@@ -722,12 +941,21 @@ class Link:
 
     def response_resource_concluded(self, resource):
         if resource.status == RNS.Resource.COMPLETE:
-            packed_response   = resource.data.read()
-            unpacked_response = umsgpack.unpackb(packed_response)
-            request_id        = unpacked_response[0]
-            response_data     = unpacked_response[1]
+            # If the response resource has metadata, this
+            # is a file response, and we'll pass the open
+            # file handle directly.
+            if resource.has_metadata:
+                self.handle_response(resource.request_id, resource.data, resource.total_size, resource.size, metadata=resource.metadata)
+
+            # If not, we'll unpack the response data and
+            # pass the unpacked structure to the handler
+            else:
+                packed_response   = resource.data.read()
+                unpacked_response = umsgpack.unpackb(packed_response)
+                request_id        = unpacked_response[0]
+                response_data     = unpacked_response[1]
+                self.handle_response(request_id, response_data, resource.total_size, resource.size)
 
-            self.handle_response(request_id, response_data, resource.total_size, resource.size)
         else:
             RNS.log("Incoming response resource failed with status: "+RNS.hexrep([resource.status]), RNS.LOG_DEBUG)
             for pending_request in self.pending_requests:
@@ -748,7 +976,7 @@ class Link:
         self.watchdog_lock = True
         if not self.status == Link.CLOSED and not (self.initiator and packet.context == RNS.Packet.KEEPALIVE and packet.data == bytes([0xFF])):
             if packet.receiving_interface != self.attached_interface:
-                RNS.log("Link-associated packet received on unexpected interface! Someone might be trying to manipulate your communication!", RNS.LOG_ERROR)
+                RNS.log(f"Link-associated packet received on unexpected interface {packet.receiving_interface} instead of {self.attached_interface}! Someone might be trying to manipulate your communication!", RNS.LOG_ERROR)
             else:
                 self.last_inbound = time.time()
                 if packet.context != RNS.Packet.KEEPALIVE:
@@ -762,7 +990,10 @@ class Link:
                     should_query = False
                     if packet.context == RNS.Packet.NONE:
                         plaintext = self.decrypt(packet.data)
+                        packet.ratchet_id = self.link_id
                         if plaintext != None:
+                            self.__update_phy_stats(packet, query_shared=True)
+
                             if self.callbacks.packet != None:
                                 thread = threading.Thread(target=self.callbacks.packet, args=(plaintext, packet))
                                 thread.daemon = True
@@ -770,19 +1001,15 @@ class Link:
                             
                             if self.destination.proof_strategy == RNS.Destination.PROVE_ALL:
                                 packet.prove()
-                                should_query = True
 
                             elif self.destination.proof_strategy == RNS.Destination.PROVE_APP:
                                 if self.destination.callbacks.proof_requested:
                                     try:
                                         if self.destination.callbacks.proof_requested(packet):
                                             packet.prove()
-                                            should_query = True
                                     except Exception as e:
                                         RNS.log("Error while executing proof request callback from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
 
-                            self.__update_phy_stats(packet, query_shared=should_query)
-
                     elif packet.context == RNS.Packet.LINKIDENTIFY:
                         plaintext = self.decrypt(packet.data)
                         if plaintext != None:
@@ -867,6 +1094,8 @@ class Link:
                                         resource_advertisement.link = self
                                         if self.callbacks.resource(resource_advertisement):
                                             RNS.Resource.accept(packet, self.callbacks.resource_concluded)
+                                        else:
+                                            RNS.Resource.reject(packet)
                                     except Exception as e:
                                         RNS.log("Error while executing resource accept callback from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
                             elif self.resource_strategy == Link.ACCEPT_ALL:
@@ -888,6 +1117,11 @@ class Link:
                                     if not packet.packet_hash in resource.req_hashlist:
                                         resource.req_hashlist.append(packet.packet_hash)
                                         resource.request(plaintext)
+                                        
+                                        # TODO: Test and possibly enable this at some point
+                                        # def request_job():
+                                        #     resource.request(plaintext)
+                                        # threading.Thread(target=request_job, daemon=True).start()
 
                     elif packet.context == RNS.Packet.RESOURCE_HMU:
                         plaintext = self.decrypt(packet.data)
@@ -907,6 +1141,15 @@ class Link:
                                 if resource_hash == resource.hash:
                                     resource.cancel()
 
+                    elif packet.context == RNS.Packet.RESOURCE_RCL:
+                        plaintext = self.decrypt(packet.data)
+                        if plaintext != None:
+                            self.__update_phy_stats(packet)
+                            resource_hash = plaintext[:RNS.Identity.HASHLENGTH//8]
+                            for resource in self.outgoing_resources:
+                                if resource_hash == resource.hash:
+                                    resource._rejected()
+
                     elif packet.context == RNS.Packet.KEEPALIVE:
                         if not self.initiator and packet.data == bytes([0xFF]):
                             keepalive_packet = RNS.Packet(self, bytes([0xFE]), context=RNS.Packet.KEEPALIVE)
@@ -946,14 +1189,13 @@ class Link:
 
     def encrypt(self, plaintext):
         try:
-            if not self.fernet:
-                try:
-                    self.fernet = Fernet(self.derived_key)
+            if not self.token:
+                try: self.token = Token(self.derived_key)
                 except Exception as e:
-                    RNS.log("Could not instantiate Fernet while performin encryption on link "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
+                    RNS.log("Could not instantiate token while performing encryption on link "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
                     raise e
 
-            return self.fernet.encrypt(plaintext)
+            return self.token.encrypt(plaintext)
 
         except Exception as e:
             RNS.log("Encryption on link "+str(self)+" failed. The contained exception was: "+str(e), RNS.LOG_ERROR)
@@ -962,10 +1204,8 @@ class Link:
 
     def decrypt(self, ciphertext):
         try:
-            if not self.fernet:
-                self.fernet = Fernet(self.derived_key)
-                
-            return self.fernet.decrypt(ciphertext)
+            if not self.token: self.token = Token(self.derived_key)
+            return self.token.decrypt(ciphertext)
 
         except Exception as e:
             RNS.log("Decryption failed on link "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
@@ -1042,10 +1282,15 @@ class Link:
         self.callbacks.remote_identified = callback
 
     def resource_concluded(self, resource):
+        concluded_at = time.time()
         if resource in self.incoming_resources:
+            self.last_resource_window = resource.window
+            self.last_resource_eifr = resource.eifr
             self.incoming_resources.remove(resource)
+            self.expected_rate = (resource.size*8)/(max(concluded_at-resource.started_transferring, 0.0001))
         if resource in self.outgoing_resources:
             self.outgoing_resources.remove(resource)
+            self.expected_rate = (resource.size*8)/(max(concluded_at-resource.started_transferring, 0.0001))
 
     def set_resource_strategy(self, resource_strategy):
         """
@@ -1072,6 +1317,12 @@ class Link:
 
         return False
 
+    def get_last_resource_window(self):
+        return self.last_resource_window
+
+    def get_last_resource_eifr(self):
+        return self.last_resource_eifr
+
     def cancel_outgoing_resource(self, resource):
         if resource in self.outgoing_resources:
             self.outgoing_resources.remove(resource)
@@ -1128,6 +1379,7 @@ class RequestReceipt():
         self.response               = None
         self.response_transfer_size = None
         self.response_size          = None
+        self.metadata               = None
         self.status                 = RequestReceipt.SENT
         self.sent_at                = time.time()
         self.progress               = 0
@@ -1214,10 +1466,11 @@ class RequestReceipt():
                 resource.cancel()
 
     
-    def response_received(self, response):
+    def response_received(self, response, metadata=None):
         if not self.status == RequestReceipt.FAILED:
             self.progress = 1.0
             self.response = response
+            self.metadata = metadata
             self.status = RequestReceipt.READY
             self.response_concluded_at = time.time()
 
@@ -1276,6 +1529,17 @@ class RequestReceipt():
         else:
             return None
 
+    def concluded(self):
+        """
+        :returns: True if the associated request has concluded (successfully or with a failure), otherwise False.
+        """
+        if self.status == RequestReceipt.READY:
+            return True
+        elif self.status == RequestReceipt.FAILED:
+            return True
+        else:
+            return False
+
 
 
 class RequestReceiptCallbacks:

RNS/Packet.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors.
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -35,10 +43,10 @@ class Packet:
 
     For ``RNS.Destination.GROUP`` destinations, Reticulum will use the
     pre-shared key configured for the destination. All packets to group
-    destinations are encrypted with the same AES-128 key.
+    destinations are encrypted with the same AES-256 key.
 
     For ``RNS.Destination.SINGLE`` destinations, Reticulum will use a newly
-    derived ephemeral AES-128 key for every packet.
+    derived ephemeral AES-256 key for every packet.
 
     For :ref:`RNS.Link<api-link>` destinations, Reticulum will use per-link
     ephemeral keys, and offers **Forward Secrecy**.
@@ -83,6 +91,10 @@ class Packet:
     LRRTT          = 0xFE   # Packet is a link request round-trip time measurement
     LRPROOF        = 0xFF   # Packet is a link request proof
 
+    # Context flag values
+    FLAG_SET       = 0x01
+    FLAG_UNSET     = 0x00
+
     # This is used to calculate allowable
     # payload sizes
     HEADER_MAXSIZE = RNS.Reticulum.HEADER_MAXSIZE
@@ -91,7 +103,7 @@ class Packet:
     # With an MTU of 500, the maximum of data we can
     # send in a single encrypted packet is given by
     # the below calculation; 383 bytes.
-    ENCRYPTED_MDU  = math.floor((RNS.Reticulum.MDU-RNS.Identity.FERNET_OVERHEAD-RNS.Identity.KEYSIZE//16)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
+    ENCRYPTED_MDU  = math.floor((RNS.Reticulum.MDU-RNS.Identity.TOKEN_OVERHEAD-RNS.Identity.KEYSIZE//16)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
     """
     The maximum size of the payload data in a single encrypted packet 
     """
@@ -102,7 +114,14 @@ class Packet:
 
     TIMEOUT_PER_HOP = RNS.Reticulum.DEFAULT_PER_HOP_TIMEOUT
 
-    def __init__(self, destination, data, packet_type = DATA, context = NONE, transport_type = RNS.Transport.BROADCAST, header_type = HEADER_1, transport_id = None, attached_interface = None, create_receipt = True):
+    __slots__  = "hops", "header", "header_type", "packet_type", "transport_type", "context", "context_flag", "destination"
+    __slots__ += "transport_id", "data", "flags", "raw", "packed", "sent", "create_receipt", "receipt", "fromPacked", "MTU"
+    __slots__ += "sent_at", "packet_hash", "ratchet_id", "attached_interface", "receiving_interface", "rssi", "snr", "q"
+    __slots__ += "ciphertext", "plaintext", "destination_hash", "destination_type", "link", "map_hash"
+
+    def __init__(self, destination, data, packet_type = DATA, context = NONE, transport_type = RNS.Transport.BROADCAST,
+                 header_type = HEADER_1, transport_id = None, attached_interface = None, create_receipt = True, context_flag=FLAG_UNSET):
+
         if destination != None:
             if transport_type == None:
                 transport_type = RNS.Transport.BROADCAST
@@ -111,6 +130,7 @@ class Packet:
             self.packet_type    = packet_type
             self.transport_type = transport_type
             self.context        = context
+            self.context_flag   = context_flag
 
             self.hops           = 0;
             self.destination    = destination
@@ -130,9 +150,14 @@ class Packet:
             self.fromPacked     = True
             self.create_receipt = False
 
-        self.MTU         = RNS.Reticulum.MTU
+        if destination and destination.type == RNS.Destination.LINK:
+            self.MTU     = destination.mtu
+        else:
+            self.MTU     = RNS.Reticulum.MTU
+
         self.sent_at     = None
         self.packet_hash = None
+        self.ratchet_id  = None
 
         self.attached_interface = attached_interface
         self.receiving_interface = None
@@ -142,9 +167,10 @@ class Packet:
 
     def get_packed_flags(self):
         if self.context == Packet.LRPROOF:
-            packed_flags = (self.header_type << 6) | (self.transport_type << 4) | (RNS.Destination.LINK << 2) | self.packet_type
+            packed_flags = (self.header_type << 6) | (self.context_flag << 5) | (self.transport_type << 4) | (RNS.Destination.LINK << 2) | self.packet_type
         else:
-            packed_flags = (self.header_type << 6) | (self.transport_type << 4) | (self.destination.type << 2) | self.packet_type
+            packed_flags = (self.header_type << 6) | (self.context_flag << 5) | (self.transport_type << 4) | (self.destination.type << 2) | self.packet_type
+
         return packed_flags
 
     def pack(self):
@@ -187,6 +213,8 @@ class Packet:
                     # In all other cases, we encrypt the packet
                     # with the destination's encryption method
                     self.ciphertext = self.destination.encrypt(self.data)
+                    if hasattr(self.destination, "latest_ratchet_id"):
+                        self.ratchet_id = self.destination.latest_ratchet_id
 
             if self.header_type == Packet.HEADER_2:
                 if self.transport_id != None:
@@ -216,7 +244,8 @@ class Packet:
             self.hops  = self.raw[1]
 
             self.header_type      = (self.flags & 0b01000000) >> 6
-            self.transport_type   = (self.flags & 0b00110000) >> 4
+            self.context_flag     = (self.flags & 0b00100000) >> 5
+            self.transport_type   = (self.flags & 0b00010000) >> 4
             self.destination_type = (self.flags & 0b00001100) >> 2
             self.packet_type      = (self.flags & 0b00000011)
 
@@ -250,7 +279,11 @@ class Packet:
         if not self.sent:
             if self.destination.type == RNS.Destination.LINK:
                 if self.destination.status == RNS.Link.CLOSED:
-                    raise IOError("Attempt to transmit over a closed link")
+                    RNS.log("Attempt to transmit over a closed link, dropping packet", RNS.LOG_DEBUG)
+                    self.sent = False
+                    self.receipt = None
+                    return False
+
                 else:
                     self.destination.last_outbound = time.time()
                     self.destination.tx += 1
@@ -329,6 +362,33 @@ class Packet:
 
         return hashable_part
 
+    def get_rssi(self):
+        """
+        :returns: The physical layer *Received Signal Strength Indication* if available, otherwise ``None``.
+        """
+        if self.rssi != None:
+            return self.rssi
+        else:
+            return reticulum.get_packet_rssi(self.packet_hash)
+            
+    def get_snr(self):
+        """
+        :returns: The physical layer *Signal-to-Noise Ratio* if available, otherwise ``None``.
+        """
+        if self.snr != None:
+            return self.snr
+        else:
+            return reticulum.get_packet_snr(self.packet_hash)
+
+    def get_q(self):
+        """
+        :returns: The physical layer *Link Quality* if available, otherwise ``None``.
+        """
+        if self.q != None:
+            return self.q
+        else:
+            return reticulum.get_packet_q(self.packet_hash)
+
 class ProofDestination:
     def __init__(self, packet):
         self.hash = packet.get_hash()[:RNS.Reticulum.TRUNCATED_HASHLENGTH//8];
@@ -369,7 +429,7 @@ class PacketReceipt:
         self.proof_packet   = None
 
         if packet.destination.type == RNS.Destination.LINK:
-            self.timeout    = packet.destination.rtt * packet.destination.traffic_timeout_factor
+            self.timeout    = max(packet.destination.rtt * packet.destination.traffic_timeout_factor, RNS.Link.TRAFFIC_TIMEOUT_MIN_MS/1000)
         else:
             self.timeout    = RNS.Reticulum.get_instance().get_first_hop_timeout(self.destination.hash)
             self.timeout   += Packet.TIMEOUT_PER_HOP * RNS.Transport.hops_to(self.destination.hash)
@@ -409,6 +469,7 @@ class PacketReceipt:
                         except Exception as e:
                             RNS.log("An error occurred while evaluating external delivery callback for "+str(link), RNS.LOG_ERROR)
                             RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+                            RNS.trace_exception(e)
                             
                     return True
                 else:
@@ -440,7 +501,7 @@ class PacketReceipt:
             # This is an explicit proof
             proof_hash = proof[:RNS.Identity.HASHLENGTH//8]
             signature = proof[RNS.Identity.HASHLENGTH//8:RNS.Identity.HASHLENGTH//8+RNS.Identity.SIGLENGTH//8]
-            if proof_hash == self.hash:
+            if proof_hash == self.hash and hasattr(self.destination, "identity") and self.destination.identity != None:
                 proof_valid = self.destination.identity.validate(signature, self.hash)
                 if proof_valid:
                     self.status = PacketReceipt.DELIVERED
@@ -461,6 +522,10 @@ class PacketReceipt:
                 return False
         elif len(proof) == PacketReceipt.IMPL_LENGTH:
             # This is an implicit proof
+
+            if not hasattr(self.destination, "identity"):
+                return False
+
             if self.destination.identity == None:
                 return False
 

RNS/Resolver.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors.
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

RNS/Resource.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors.
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -25,6 +33,7 @@ import os
 import bz2
 import math
 import time
+import struct
 import tempfile
 import threading
 from threading import Lock
@@ -54,6 +63,9 @@ class Resource:
     # The maximum window size for transfers on slow links
     WINDOW_MAX_SLOW      = 10
 
+    # The maximum window size for transfers on very slow links
+    WINDOW_MAX_VERY_SLOW = 4
+
     # The maximum window size for transfers on fast links
     WINDOW_MAX_FAST      = 75
     
@@ -65,12 +77,22 @@ class Resource:
     # rounds, the fast link window size will be allowed.
     FAST_RATE_THRESHOLD  = WINDOW_MAX_SLOW - WINDOW - 2
 
+    # If the very slow rate is sustained for this many request
+    # rounds, window will be capped to the very slow limit.
+    VERY_SLOW_RATE_THRESHOLD = 2
+
     # If the RTT rate is higher than this value,
     # the max window size for fast links will be used.
     # The default is 50 Kbps (the value is stored in
     # bytes per second, hence the "/ 8").
     RATE_FAST            = (50*1000) / 8
 
+    # If the RTT rate is lower than this value,
+    # the window size will be capped at .
+    # The default is 50 Kbps (the value is stored in
+    # bytes per second, hence the "/ 8").
+    RATE_VERY_SLOW       = (2*1000) / 8
+
     # The minimum allowed flexibility of the window size.
     # The difference between window_max and window_min
     # will never be smaller than this value.
@@ -86,25 +108,24 @@ class Resource:
     # it is to be handled within reasonable
     # time constraint, even on small systems.
     #
-    # A small system in this regard is
-    # defined as a Raspberry Pi, which should
-    # be able to compress, encrypt and hash-map
-    # the resource in about 10 seconds.
-    #
     # This constant will be used when determining
     # how to sequence the sending of large resources.
     #
     # Capped at 16777215 (0xFFFFFF) per segment to
     # fit in 3 bytes in resource advertisements.
-    MAX_EFFICIENT_SIZE      = 16 * 1024 * 1024 - 1
+    MAX_EFFICIENT_SIZE      = 1 * 1024 * 1024 - 1
     RESPONSE_MAX_GRACE_TIME = 10
+
+    # Max metadata size is 16777215 (0xFFFFFF) bytes
+    METADATA_MAX_SIZE       = 16 * 1024 * 1024 - 1
     
     # The maximum size to auto-compress with
     # bz2 before sending.
-    AUTO_COMPRESS_MAX_SIZE = MAX_EFFICIENT_SIZE
+    AUTO_COMPRESS_MAX_SIZE = 64 * 1024 * 1024
 
     PART_TIMEOUT_FACTOR           = 4
     PART_TIMEOUT_FACTOR_AFTER_RTT = 2
+    PROOF_TIMEOUT_FACTOR          = 3
     MAX_RETRIES                   = 16
     MAX_ADV_RETRIES               = 4
     SENDER_GRACE_TIME             = 10.0
@@ -127,6 +148,19 @@ class Resource:
     COMPLETE        = 0x06
     FAILED          = 0x07
     CORRUPT         = 0x08
+    REJECTED        = 0x00
+
+    @staticmethod
+    def reject(advertisement_packet):
+        try:
+            adv = ResourceAdvertisement.unpack(advertisement_packet.plaintext)
+            resource_hash = adv.h
+            reject_packet = RNS.Packet(advertisement_packet.link, resource_hash, context=RNS.Packet.RESOURCE_RCL)
+            reject_packet.send()
+
+        except Exception as e:
+            RNS.log(f"An error ocurred while rejecting advertised resource: {e}", RNS.LOG_ERROR)
+            RNS.trace_exception(e)
 
     @staticmethod
     def accept(advertisement_packet, callback=None, progress_callback = None, request_id = None):
@@ -136,42 +170,53 @@ class Resource:
             resource = Resource(None, advertisement_packet.link, request_id = request_id)
             resource.status = Resource.TRANSFERRING
 
-            resource.flags               = adv.f
-            resource.size                = adv.t
-            resource.total_size          = adv.d
-            resource.uncompressed_size   = adv.d
-            resource.hash                = adv.h
-            resource.original_hash       = adv.o
-            resource.random_hash         = adv.r
-            resource.hashmap_raw         = adv.m
-            resource.encrypted           = True if resource.flags & 0x01 else False
-            resource.compressed          = True if resource.flags >> 1 & 0x01 else False
-            resource.initiator           = False
+            resource.flags                = adv.f
+            resource.size                 = adv.t
+            resource.total_size           = adv.d
+            resource.uncompressed_size    = adv.d
+            resource.hash                 = adv.h
+            resource.original_hash        = adv.o
+            resource.random_hash          = adv.r
+            resource.hashmap_raw          = adv.m
+            resource.encrypted            = True if resource.flags & 0x01 else False
+            resource.compressed           = True if resource.flags >> 1 & 0x01 else False
+            resource.initiator            = False
             resource.callback             = callback
-            resource.__progress_callback = progress_callback
-            resource.total_parts         = int(math.ceil(resource.size/float(Resource.SDU)))
-            resource.received_count      = 0
-            resource.outstanding_parts   = 0
-            resource.parts               = [None] * resource.total_parts
-            resource.window              = Resource.WINDOW
-            resource.window_max          = Resource.WINDOW_MAX_SLOW
-            resource.window_min          = Resource.WINDOW_MIN
-            resource.window_flexibility  = Resource.WINDOW_FLEXIBILITY
-            resource.last_activity       = time.time()
+            resource.__progress_callback  = progress_callback
+            resource.total_parts          = int(math.ceil(resource.size/float(resource.sdu)))
+            resource.received_count       = 0
+            resource.outstanding_parts    = 0
+            resource.parts                = [None] * resource.total_parts
+            resource.window               = Resource.WINDOW
+            resource.window_max           = Resource.WINDOW_MAX_SLOW
+            resource.window_min           = Resource.WINDOW_MIN
+            resource.window_flexibility   = Resource.WINDOW_FLEXIBILITY
+            resource.last_activity        = time.time()
+            resource.started_transferring = resource.last_activity
 
-            resource.storagepath         = RNS.Reticulum.resourcepath+"/"+resource.original_hash.hex()
-            resource.segment_index       = adv.i
-            resource.total_segments      = adv.l
-            if adv.l > 1:
-                resource.split = True
-            else:
-                resource.split = False
+            resource.storagepath          = RNS.Reticulum.resourcepath+"/"+resource.original_hash.hex()
+            resource.meta_storagepath     = resource.storagepath+".meta"
+            resource.segment_index        = adv.i
+            resource.total_segments       = adv.l
+            
+            if adv.l > 1: resource.split = True
+            else: resource.split = False
+
+            if adv.x: resource.has_metadata = True
+            else:     resource.has_metadata = False
 
             resource.hashmap = [None] * resource.total_parts
             resource.hashmap_height = 0
             resource.waiting_for_hmu = False
             resource.receiving_part = False
             resource.consecutive_completed_height = -1
+
+            previous_window = resource.link.get_last_resource_window()
+            previous_eifr   = resource.link.get_last_resource_eifr()
+            if previous_window:
+                resource.window = previous_window
+            if previous_eifr:
+                resource.previous_eifr = previous_eifr
             
             if not resource.link.has_incoming_resource(resource):
                 resource.link.register_incoming_resource(resource)
@@ -184,9 +229,7 @@ class Resource:
                         RNS.log("Error while executing resource started callback from "+str(resource)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
 
                 resource.hashmap_update(0, resource.hashmap_raw)
-
                 resource.watchdog_job()
-
                 return resource
 
             else:
@@ -200,13 +243,33 @@ class Resource:
     # Create a resource for transmission to a remote destination
     # The data passed can be either a bytes-array or a file opened
     # in binary read mode.
-    def __init__(self, data, link, advertise=True, auto_compress=True, callback=None, progress_callback=None, timeout = None, segment_index = 1, original_hash = None, request_id = None, is_response = False):
+    def __init__(self, data, link, metadata=None, advertise=True, auto_compress=True, callback=None, progress_callback=None,
+                 timeout = None, segment_index = 1, original_hash = None, request_id = None, is_response = False, sent_metadata_size=0):
+        
         data_size = None
         resource_data = None
         self.assembly_lock = False
+        self.preparing_next_segment = False
+        self.next_segment = None
+        self.metadata = None
+        self.has_metadata = False
+        self.metadata_size = sent_metadata_size
+
+        if metadata != None:
+            packed_metadata = umsgpack.packb(metadata)
+            metadata_size   = len(packed_metadata)
+            if metadata_size > Resource.METADATA_MAX_SIZE:
+                raise SystemError("Resource metadata size exceeded")
+            else:
+                self.metadata = struct.pack(">I", metadata_size)[1:] + packed_metadata
+                self.metadata_size = len(self.metadata)
+                self.has_metadata = True
+        else:
+            self.metadata = b""
+            if sent_metadata_size > 0: self.has_metadata = True
 
         if data != None:
-            if not hasattr(data, "read") and len(data) > Resource.MAX_EFFICIENT_SIZE:
+            if not hasattr(data, "read") and self.metadata_size + len(data) > Resource.MAX_EFFICIENT_SIZE:
                 original_data = data
                 data_size = len(original_data)
                 data = tempfile.TemporaryFile()
@@ -214,33 +277,43 @@ class Resource:
                 del original_data
 
         if hasattr(data, "read"):
-            if data_size == None:
-                data_size = os.stat(data.name).st_size
+            if data_size == None: data_size = os.stat(data.name).st_size
+            self.total_size = data_size + self.metadata_size
 
-            self.total_size = data_size
-            self.grand_total_parts = math.ceil(data_size/Resource.SDU)
-
-            if data_size <= Resource.MAX_EFFICIENT_SIZE:
+            if self.total_size <= Resource.MAX_EFFICIENT_SIZE:
                 self.total_segments = 1
                 self.segment_index  = 1
                 self.split          = False
                 resource_data = data.read()
                 data.close()
+
             else:
-                self.total_segments = ((data_size-1)//Resource.MAX_EFFICIENT_SIZE)+1
+                # self.total_segments = ((data_size-1)//Resource.MAX_EFFICIENT_SIZE)+1
+                # self.segment_index  = segment_index
+                # self.split          = True
+                # seek_index          = segment_index-1
+                # seek_position       = seek_index*Resource.MAX_EFFICIENT_SIZE
+
+                self.total_segments = ((self.total_size-1)//Resource.MAX_EFFICIENT_SIZE)+1
                 self.segment_index  = segment_index
                 self.split          = True
                 seek_index          = segment_index-1
-                seek_position       = seek_index*Resource.MAX_EFFICIENT_SIZE
+                first_read_size     = Resource.MAX_EFFICIENT_SIZE - self.metadata_size
+
+                if segment_index == 1:
+                    seek_position     = 0
+                    segment_read_size = first_read_size
+                else:
+                    seek_position     = first_read_size + ((seek_index-1)*Resource.MAX_EFFICIENT_SIZE)
+                    segment_read_size = Resource.MAX_EFFICIENT_SIZE
 
                 data.seek(seek_position)
-                resource_data = data.read(Resource.MAX_EFFICIENT_SIZE)
+                resource_data = data.read(segment_read_size)
                 self.input_file = data
 
         elif isinstance(data, bytes):
             data_size = len(data)
-            self.grand_total_parts = math.ceil(data_size/Resource.SDU)
-            self.total_size  = data_size
+            self.total_size = data_size + self.metadata_size
             
             resource_data = data
             self.total_segments = 1
@@ -253,10 +326,16 @@ class Resource:
         else:
             raise TypeError("Invalid data instance type passed to resource initialisation")
 
-        data = resource_data
+        if resource_data:
+            if self.has_metadata: data = self.metadata + resource_data
+            else:                 data = resource_data
 
         self.status = Resource.NONE
         self.link = link
+        if self.link.mtu:
+            self.sdu = self.link.mtu - RNS.Reticulum.HEADER_MAXSIZE - RNS.Reticulum.IFAC_MIN_SIZE
+        else:
+            self.sdu = link.mdu or Resource.SDU
         self.max_retries = Resource.MAX_RETRIES
         self.max_adv_retries = Resource.MAX_ADV_RETRIES
         self.retries_left = self.max_retries
@@ -272,9 +351,24 @@ class Resource:
         self.req_sent = 0
         self.req_resp_rtt_rate = 0
         self.rtt_rxd_bytes_at_part_req = 0
+        self.req_data_rtt_rate = 0
+        self.eifr = None
+        self.previous_eifr = None
         self.fast_rate_rounds = 0
+        self.very_slow_rate_rounds = 0
         self.request_id = request_id
+        self.started_transferring = None
         self.is_response = is_response
+        self.auto_compress_limit = Resource.AUTO_COMPRESS_MAX_SIZE
+        self.auto_compress_option = auto_compress
+
+        if type(auto_compress) == bool:
+            self.auto_compress = auto_compress
+        elif type(auto_compress) == int:
+            self.auto_compress = True
+            self.auto_compress_limit = auto_compress
+        else:
+            raise TypeError(f"Invalid type {type(auto_compress)} for auto_compress option")
 
         self.req_hashlist = []
         self.receiver_min_consecutive_height = 0
@@ -290,10 +384,10 @@ class Resource:
             self.uncompressed_data = data
 
             compression_began = time.time()
-            if (auto_compress and len(self.uncompressed_data) <= Resource.AUTO_COMPRESS_MAX_SIZE):
-                RNS.log("Compressing resource data...", RNS.LOG_DEBUG)
+            if self.auto_compress and data_size <= self.auto_compress_limit:
+                RNS.log("Compressing resource data...", RNS.LOG_EXTREME)
                 self.compressed_data   = bz2.compress(self.uncompressed_data)
-                RNS.log("Compression completed in "+str(round(time.time()-compression_began, 3))+" seconds", RNS.LOG_DEBUG)
+                RNS.log("Compression completed in "+str(round(time.time()-compression_began, 3))+" seconds", RNS.LOG_EXTREME)
             else:
                 self.compressed_data   = self.uncompressed_data
 
@@ -302,25 +396,26 @@ class Resource:
 
             if (self.compressed_size < self.uncompressed_size and auto_compress):
                 saved_bytes = len(self.uncompressed_data) - len(self.compressed_data)
-                RNS.log("Compression saved "+str(saved_bytes)+" bytes, sending compressed", RNS.LOG_DEBUG)
+                RNS.log("Compression saved "+str(saved_bytes)+" bytes, sending compressed", RNS.LOG_EXTREME)
 
                 self.data  = b""
                 self.data += RNS.Identity.get_random_hash()[:Resource.RANDOM_HASH_SIZE]
                 self.data += self.compressed_data
                 
                 self.compressed = True
-                self.uncompressed_data = None
 
             else:
                 self.data  = b""
                 self.data += RNS.Identity.get_random_hash()[:Resource.RANDOM_HASH_SIZE]
                 self.data += self.uncompressed_data
-                self.uncompressed_data = self.data
 
                 self.compressed = False
                 self.compressed_data = None
-                if auto_compress:
-                    RNS.log("Compression did not decrease size, sending uncompressed", RNS.LOG_DEBUG)
+                if self.auto_compress and data_size <= self.auto_compress_limit:
+                    RNS.log("Compression did not decrease size, sending uncompressed", RNS.LOG_EXTREME)
+
+            self.compressed_data = None
+            self.uncompressed_data = None
 
             # Resources handle encryption directly to
             # make optimal use of packet MTU on an entire
@@ -331,12 +426,13 @@ class Resource:
 
             self.size = len(self.data)
             self.sent_parts = 0
-            hashmap_entries = int(math.ceil(self.size/float(Resource.SDU)))
+            hashmap_entries = int(math.ceil(self.size/float(self.sdu)))
+            self.total_parts = hashmap_entries
                 
             hashmap_ok = False
             while not hashmap_ok:
                 hashmap_computation_began = time.time()
-                RNS.log("Starting resource hashmap computation with "+str(hashmap_entries)+" entries...", RNS.LOG_DEBUG)
+                RNS.log("Starting resource hashmap computation with "+str(hashmap_entries)+" entries...", RNS.LOG_EXTREME)
 
                 self.random_hash       = RNS.Identity.get_random_hash()[:Resource.RANDOM_HASH_SIZE]
                 self.hash = RNS.Identity.full_hash(data+self.random_hash)
@@ -352,11 +448,11 @@ class Resource:
                 self.hashmap = b""
                 collision_guard_list = []
                 for i in range(0,hashmap_entries):
-                    data = self.data[i*Resource.SDU:(i+1)*Resource.SDU]
+                    data = self.data[i*self.sdu:(i+1)*self.sdu]
                     map_hash = self.get_map_hash(data)
 
                     if map_hash in collision_guard_list:
-                        RNS.log("Found hash collision in resource map, remapping...", RNS.LOG_VERBOSE)
+                        RNS.log("Found hash collision in resource map, remapping...", RNS.LOG_DEBUG)
                         hashmap_ok = False
                         break
                     else:
@@ -372,8 +468,9 @@ class Resource:
                         self.hashmap += part.map_hash
                         self.parts.append(part)
 
-                RNS.log("Hashmap computation concluded in "+str(round(time.time()-hashmap_computation_began, 3))+" seconds", RNS.LOG_DEBUG)
-                
+                RNS.log("Hashmap computation concluded in "+str(round(time.time()-hashmap_computation_began, 3))+" seconds", RNS.LOG_EXTREME)
+
+            self.data = None
             if advertise:
                 self.advertise()
         else:
@@ -410,10 +507,13 @@ class Resource:
         Advertise the resource. If the other end of the link accepts
         the resource advertisement it will begin transferring.
         """
-        thread = threading.Thread(target=self.__advertise_job)
-        thread.daemon = True
+        thread = threading.Thread(target=self.__advertise_job, daemon=True)
         thread.start()
 
+        if self.segment_index < self.total_segments:
+            prepare_thread = threading.Thread(target=self.__prepare_next_segment, daemon=True)
+            prepare_thread.start()
+
     def __advertise_job(self):
         self.advertisement_packet = RNS.Packet(self.link, ResourceAdvertisement(self).pack(), context=RNS.Packet.RESOURCE_ADV)
         while not self.link.ready_for_new_resource():
@@ -423,12 +523,13 @@ class Resource:
         try:
             self.advertisement_packet.send()
             self.last_activity = time.time()
+            self.started_transferring = self.last_activity
             self.adv_sent = self.last_activity
             self.rtt = None
             self.status = Resource.ADVERTISED
             self.retries_left = self.max_adv_retries
             self.link.register_outgoing_resource(self)
-            RNS.log("Sent resource advertisement for "+RNS.prettyhexrep(self.hash), RNS.LOG_DEBUG)
+            RNS.log("Sent resource advertisement for "+RNS.prettyhexrep(self.hash), RNS.LOG_EXTREME)
         except Exception as e:
             RNS.log("Could not advertise resource, the contained exception was: "+str(e), RNS.LOG_ERROR)
             self.cancel()
@@ -436,9 +537,25 @@ class Resource:
 
         self.watchdog_job()
 
+    def update_eifr(self):
+        if self.rtt == None:
+            rtt = self.link.rtt
+        else:
+            rtt = self.rtt
+
+        if self.req_data_rtt_rate != 0:
+            expected_inflight_rate = self.req_data_rtt_rate*8
+        else:
+            if self.previous_eifr != None:
+                expected_inflight_rate = self.previous_eifr
+            else:
+                expected_inflight_rate = self.link.establishment_cost*8 / rtt
+
+        self.eifr = expected_inflight_rate
+        if self.link: self.link.expected_rate = self.eifr
+
     def watchdog_job(self):
-        thread = threading.Thread(target=self.__watchdog_job)
-        thread.daemon = True
+        thread = threading.Thread(target=self.__watchdog_job, daemon=True)
         thread.start()
 
     def __watchdog_job(self):
@@ -450,7 +567,6 @@ class Resource:
                 sleep(0.025)
 
             sleep_time = None
-
             if self.status == Resource.ADVERTISED:
                 sleep_time = (self.adv_sent+self.timeout+Resource.PROCESSING_GRACE)-time.time()
                 if sleep_time < 0:
@@ -474,17 +590,20 @@ class Resource:
 
             elif self.status == Resource.TRANSFERRING:
                 if not self.initiator:
-
-                    if self.rtt == None:
-                        rtt = self.link.rtt
-                    else:
-                        rtt = self.rtt
-
-                    window_remaining = self.outstanding_parts
-
                     retries_used = self.max_retries - self.retries_left
                     extra_wait = retries_used * Resource.PER_RETRY_DELAY
-                    sleep_time = self.last_activity + (rtt*(self.part_timeout_factor+window_remaining)) + Resource.RETRY_GRACE_TIME + extra_wait - time.time()
+
+                    self.update_eifr()
+                    expected_tof_remaining = (self.outstanding_parts*self.sdu*8)/self.eifr
+
+                    if self.req_resp_rtt_rate != 0:
+                        sleep_time = self.last_activity + self.part_timeout_factor*expected_tof_remaining + Resource.RETRY_GRACE_TIME + extra_wait - time.time()
+                    else:
+                        sleep_time = self.last_activity + self.part_timeout_factor*((3*self.sdu)/self.eifr) + Resource.RETRY_GRACE_TIME + extra_wait - time.time()
+                    
+                    # TODO: Remove debug at some point
+                    # RNS.log(f"EIFR {RNS.prettyspeed(self.eifr)}, ETOF {RNS.prettyshorttime(expected_tof_remaining)} ", RNS.LOG_DEBUG, pt=True)
+                    # RNS.log(f"Resource ST {RNS.prettyshorttime(sleep_time)}, RTT {RNS.prettyshorttime(self.rtt or self.link.rtt)}, {self.outstanding_parts} left", RNS.LOG_DEBUG, pt=True)
                     
                     if sleep_time < 0:
                         if self.retries_left > 0:
@@ -514,6 +633,10 @@ class Resource:
                         sleep_time = 0.001
 
             elif self.status == Resource.AWAITING_PROOF:
+                # Decrease timeout factor since proof packets are
+                # significantly smaller than full req/resp roundtrip
+                self.timeout_factor = Resource.PROOF_TIMEOUT_FACTOR
+
                 sleep_time = self.last_part_sent + (self.rtt*self.timeout_factor+self.sender_grace_time) - time.time()
                 if sleep_time < 0:
                     if self.retries_left <= 0:
@@ -530,8 +653,11 @@ class Resource:
                         self.last_part_sent = time.time()
                         sleep_time = 0.001
 
+            elif self.status == Resource.REJECTED:
+                sleep_time = 0.001
+
             if sleep_time == 0:
-                RNS.log("Warning! Link watchdog sleep time of 0!", RNS.LOG_WARNING)
+                RNS.log("Warning! Link watchdog sleep time of 0!", RNS.LOG_DEBUG)
             if sleep_time == None or sleep_time < 0:
                 RNS.log("Timing error, cancelling resource transfer.", RNS.LOG_ERROR)
                 self.cancel()
@@ -545,29 +671,37 @@ class Resource:
                 self.status = Resource.ASSEMBLING
                 stream = b"".join(self.parts)
 
-                if self.encrypted:
-                    data = self.link.decrypt(stream)
-                else:
-                    data = stream
+                if self.encrypted: data = self.link.decrypt(stream)
+                else: data = stream
 
                 # Strip off random hash
                 data = data[Resource.RANDOM_HASH_SIZE:]
 
-                if self.compressed:
-                    self.data = bz2.decompress(data)
-                else:
-                    self.data = data
+                if self.compressed: self.data = bz2.decompress(data)
+                else: self.data = data
 
                 calculated_hash = RNS.Identity.full_hash(self.data+self.random_hash)
-
                 if calculated_hash == self.hash:
+                    if self.has_metadata and self.segment_index == 1:
+                        # TODO: Add early metadata_ready callback
+                        metadata_size = self.data[0] << 16 | self.data[1] << 8 | self.data[2]
+                        packed_metadata = self.data[3:3+metadata_size]
+                        metadata_file = open(self.meta_storagepath, "wb")
+                        metadata_file.write(packed_metadata)
+                        metadata_file.close()
+                        del packed_metadata
+                        data = self.data[3+metadata_size:]
+                    else:
+                        data = self.data
+
                     self.file = open(self.storagepath, "ab")
-                    self.file.write(self.data)
+                    self.file.write(data)
                     self.file.close()
                     self.status = Resource.COMPLETE
+                    del data
                     self.prove()
-                else:
-                    self.status = Resource.CORRUPT
+                
+                else: self.status = Resource.CORRUPT
 
 
             except Exception as e:
@@ -579,21 +713,27 @@ class Resource:
 
             if self.segment_index == self.total_segments:
                 if self.callback != None:
+                    if not os.path.isfile(self.meta_storagepath):
+                        self.metadata = None
+                    else:
+                        metadata_file = open(self.meta_storagepath, "rb")
+                        self.metadata = umsgpack.unpackb(metadata_file.read())
+                        metadata_file.close()
+                        try: os.unlink(self.meta_storagepath)
+                        except Exception as e:
+                            RNS.log(f"Error while cleaning up resource metadata file, the contained exception was: {e}", RNS.LOG_ERROR)
+
                     self.data = open(self.storagepath, "rb")
-                    try:
-                        self.callback(self)
+                    try: self.callback(self)
                     except Exception as e:
                         RNS.log("Error while executing resource assembled callback from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
 
                 try:
-                    if hasattr(self.data, "close") and callable(self.data.close):
-                        self.data.close()
-
-                    os.unlink(self.storagepath)
+                    if hasattr(self.data, "close") and callable(self.data.close): self.data.close()
+                    if os.path.isfile(self.storagepath): os.unlink(self.storagepath)
 
                 except Exception as e:
-                    RNS.log("Error while cleaning up resource files, the contained exception was:", RNS.LOG_ERROR)
-                    RNS.log(str(e))
+                    RNS.log(f"Error while cleaning up resource files, the contained exception was: {e}", RNS.LOG_ERROR)
             else:
                 RNS.log("Resource segment "+str(self.segment_index)+" of "+str(self.total_segments)+" received, waiting for next segment to be announced", RNS.LOG_DEBUG)
 
@@ -605,11 +745,29 @@ class Resource:
                 proof_data = self.hash+proof
                 proof_packet = RNS.Packet(self.link, proof_data, packet_type=RNS.Packet.PROOF, context=RNS.Packet.RESOURCE_PRF)
                 proof_packet.send()
+                RNS.Transport.cache(proof_packet, force_cache=True)
             except Exception as e:
                 RNS.log("Could not send proof packet, cancelling resource", RNS.LOG_DEBUG)
                 RNS.log("The contained exception was: "+str(e), RNS.LOG_DEBUG)
                 self.cancel()
 
+    def __prepare_next_segment(self):
+        # Prepare the next segment for advertisement
+        RNS.log(f"Preparing segment {self.segment_index+1} of {self.total_segments} for resource {self}", RNS.LOG_DEBUG)
+        self.preparing_next_segment = True
+        self.next_segment = Resource(
+            self.input_file, self.link,
+            callback = self.callback,
+            segment_index = self.segment_index+1,
+            original_hash=self.original_hash,
+            progress_callback = self.__progress_callback,
+            request_id = self.request_id,
+            is_response = self.is_response,
+            advertise = False,
+            auto_compress = self.auto_compress_option,
+            sent_metadata_size = self.metadata_size,
+        )
+
     def validate_proof(self, proof_data):
         if not self.status == Resource.FAILED:
             if len(proof_data) == RNS.Identity.HASHLENGTH//8*2:
@@ -620,30 +778,36 @@ class Resource:
                         # If all segments were processed, we'll
                         # signal that the resource sending concluded
                         if self.callback != None:
-                            try:
-                                self.callback(self)
-                            except Exception as e:
-                                RNS.log("Error while executing resource concluded callback from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
+                            try: self.callback(self)
+                            except Exception as e: RNS.log("Error while executing resource concluded callback from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
                             finally:
                                 try:
                                     if hasattr(self, "input_file"):
-                                        if hasattr(self.input_file, "close") and callable(self.input_file.close):
-                                            self.input_file.close()
-
-                                except Exception as e:
-                                    RNS.log("Error while closing resource input file: "+str(e), RNS.LOG_ERROR)
+                                        if hasattr(self.input_file, "close") and callable(self.input_file.close): self.input_file.close()
+                                except Exception as e: RNS.log("Error while closing resource input file: "+str(e), RNS.LOG_ERROR)
+                        else:
+                            try:
+                                if hasattr(self, "input_file"):
+                                    if hasattr(self.input_file, "close") and callable(self.input_file.close): self.input_file.close()
+                            except Exception as e: RNS.log("Error while closing resource input file: "+str(e), RNS.LOG_ERROR)
                     else:
                         # Otherwise we'll recursively create the
                         # next segment of the resource
-                        Resource(
-                            self.input_file, self.link,
-                            callback = self.callback,
-                            segment_index = self.segment_index+1,
-                            original_hash=self.original_hash,
-                            progress_callback = self.__progress_callback,
-                            request_id = self.request_id,
-                            is_response = self.is_response,
-                        )
+                        if not self.preparing_next_segment:
+                            RNS.log(f"Next segment preparation for resource {self} was not started yet, manually preparing now. This will cause transfer slowdown.", RNS.LOG_WARNING)
+                            self.__prepare_next_segment()
+
+                        while self.next_segment == None: time.sleep(0.05)
+
+                        self.data = None
+                        self.metadata = None
+                        self.parts = None
+                        self.input_file = None
+                        self.link = None
+                        self.req_hashlist = None
+                        self.hashmap = None
+
+                        self.next_segment.advertise()
                 else:
                     pass
             else:
@@ -733,6 +897,7 @@ class Resource:
 
                         if rtt != 0:
                             self.req_data_rtt_rate = req_transferred/rtt
+                            self.update_eifr()
                             self.rtt_rxd_bytes_at_part_req = self.rtt_rxd_bytes
 
                             if self.req_data_rtt_rate > Resource.RATE_FAST and self.fast_rate_rounds < Resource.FAST_RATE_THRESHOLD:
@@ -741,6 +906,12 @@ class Resource:
                                 if self.fast_rate_rounds == Resource.FAST_RATE_THRESHOLD:
                                     self.window_max = Resource.WINDOW_MAX_FAST
 
+                            if self.fast_rate_rounds == 0 and self.req_data_rtt_rate < Resource.RATE_VERY_SLOW and self.very_slow_rate_rounds < Resource.VERY_SLOW_RATE_THRESHOLD:
+                                self.very_slow_rate_rounds += 1
+
+                                if self.very_slow_rate_rounds == Resource.VERY_SLOW_RATE_THRESHOLD:
+                                    self.window_max = Resource.WINDOW_MAX_VERY_SLOW
+
                     self.request_next()
             else:
                 self.receiving_part = False
@@ -882,6 +1053,7 @@ class Resource:
 
             if self.sent_parts == len(self.parts):
                 self.status = Resource.AWAITING_PROOF
+                self.retries_left = 3
 
             if self.__progress_callback != None:
                 try:
@@ -913,6 +1085,18 @@ class Resource:
                 except Exception as e:
                     RNS.log("Error while executing callbacks on resource cancel from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
 
+    def _rejected(self):
+        if self.status < Resource.COMPLETE:
+            if self.initiator:
+                self.status = Resource.REJECTED
+                self.link.cancel_outgoing_resource(self)
+                if self.callback != None:
+                    try:
+                        self.link.resource_concluded(self)
+                        self.callback(self)
+                    except Exception as e:
+                        RNS.log("Error while executing callbacks on resource reject from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
+
     def set_callback(self, callback):
         self.callback = callback
 
@@ -923,21 +1107,70 @@ class Resource:
         """
         :returns: The current progress of the resource transfer as a *float* between 0.0 and 1.0.
         """
-        if self.initiator:
-            self.processed_parts  = (self.segment_index-1)*math.ceil(Resource.MAX_EFFICIENT_SIZE/Resource.SDU)
-            self.processed_parts += self.sent_parts
-            self.progress_total_parts = float(self.grand_total_parts)
-        else:
-            self.processed_parts  = (self.segment_index-1)*math.ceil(Resource.MAX_EFFICIENT_SIZE/Resource.SDU)            
-            self.processed_parts += self.received_count
-            if self.split:
-                self.progress_total_parts = float(math.ceil(self.total_size/Resource.SDU))
-            else:
+        if self.status == RNS.Resource.COMPLETE and self.segment_index == self.total_segments:
+            return 1.0
+        
+        elif self.initiator:
+            if not self.split:
+                self.processed_parts = self.sent_parts
                 self.progress_total_parts = float(self.total_parts)
 
+            else:
+                is_last_segment = self.segment_index != self.total_segments
+                total_segments = self.total_segments
+                processed_segments = self.segment_index-1
+
+                current_segment_parts = self.total_parts
+                max_parts_per_segment = math.ceil(Resource.MAX_EFFICIENT_SIZE/self.sdu)
+
+                previously_processed_parts = processed_segments*max_parts_per_segment
+
+                if current_segment_parts < max_parts_per_segment:
+                    current_segment_factor = max_parts_per_segment / current_segment_parts
+                else:
+                    current_segment_factor = 1
+
+                self.processed_parts = previously_processed_parts + self.sent_parts*current_segment_factor
+                self.progress_total_parts = self.total_segments*max_parts_per_segment
+
+        else:
+            if not self.split:
+                self.processed_parts = self.received_count
+                self.progress_total_parts = float(self.total_parts)
+
+            else:
+                is_last_segment = self.segment_index != self.total_segments
+                total_segments = self.total_segments
+                processed_segments = self.segment_index-1
+
+                current_segment_parts = self.total_parts
+                max_parts_per_segment = math.ceil(Resource.MAX_EFFICIENT_SIZE/self.sdu)
+
+                previously_processed_parts = processed_segments*max_parts_per_segment
+
+                if current_segment_parts < max_parts_per_segment:
+                    current_segment_factor = max_parts_per_segment / current_segment_parts
+                else:
+                    current_segment_factor = 1
+
+                self.processed_parts = previously_processed_parts + self.received_count*current_segment_factor
+                self.progress_total_parts = self.total_segments*max_parts_per_segment
+
+
         progress = min(1.0, self.processed_parts / self.progress_total_parts)
         return progress
 
+    def get_segment_progress(self):
+        if self.status == RNS.Resource.COMPLETE and self.segment_index == self.total_segments:
+            return 1.0
+        elif self.initiator:
+            processed_parts = self.sent_parts
+        else:
+            processed_parts = self.received_count
+
+        progress = min(1.0, processed_parts / self.total_parts)
+        return progress
+
     def get_transfer_size(self):
         """
         :returns: The number of bytes needed to transfer the resource.
@@ -1023,6 +1256,7 @@ class ResourceAdvertisement:
 
 
     def __init__(self, resource=None, request_id=None, is_response=False):
+        self.link = None
         if resource != None:
             self.t = resource.size              # Transfer size
             self.d = resource.total_size        # Total uncompressed data size
@@ -1034,6 +1268,7 @@ class ResourceAdvertisement:
             self.c = resource.compressed        # Compression flag
             self.e = resource.encrypted         # Encryption flag
             self.s = resource.split             # Split flag
+            self.x = resource.has_metadata      # Metadata flag
             self.i = resource.segment_index     # Segment index
             self.l = resource.total_segments    # Total segments
             self.q = resource.request_id        # ID of associated request
@@ -1049,7 +1284,7 @@ class ResourceAdvertisement:
                     self.p = True
 
             # Flags
-            self.f = 0x00 | self.p << 4 | self.u << 3 | self.s << 2 | self.c << 1 | self.e
+            self.f = 0x00 | self.x << 5 | self.p << 4 | self.u << 3 | self.s << 2 | self.c << 1 | self.e
 
     def get_transfer_size(self):
         return self.t
@@ -1069,6 +1304,12 @@ class ResourceAdvertisement:
     def is_compressed(self):
         return self.c
 
+    def has_metadata(self):
+        return self.x
+
+    def get_link(self):
+        return self.link
+
     def pack(self, segment=0):
         hashmap_start = segment*ResourceAdvertisement.HASHMAP_MAX_LEN
         hashmap_end   = min((segment+1)*(ResourceAdvertisement.HASHMAP_MAX_LEN), self.n)
@@ -1115,5 +1356,6 @@ class ResourceAdvertisement:
         adv.s = True if ((adv.f >> 2) & 0x01) == 0x01 else False
         adv.u = True if ((adv.f >> 3) & 0x01) == 0x01 else False
         adv.p = True if ((adv.f >> 4) & 0x01) == 0x01 else False
+        adv.x = True if ((adv.f >> 5) & 0x01) == 0x01 else False
 
         return adv

RNS/Utilities/__init__.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -23,5 +31,7 @@
 import os
 import glob
 
-modules = glob.glob(os.path.dirname(__file__)+"/*.py")
-__all__ = [ os.path.basename(f)[:-3] for f in modules if not f.endswith('__init__.py')]
+py_modules  = glob.glob(os.path.dirname(__file__)+"/*.py")
+pyc_modules = glob.glob(os.path.dirname(__file__)+"/*.pyc")
+modules     = py_modules+pyc_modules
+__all__ = list(set([os.path.basename(f).replace(".pyc", "").replace(".py", "") for f in modules if not (f.endswith("__init__.py") or f.endswith("__init__.pyc"))]))

RNS/Utilities/rncp.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -11,8 +11,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -25,6 +33,7 @@
 import RNS
 import argparse
 import threading
+import shutil
 import time
 import sys
 import os
@@ -33,11 +42,29 @@ from RNS._version import __version__
 
 APP_NAME = "rncp"
 allow_all = False
+allow_fetch = False
+allow_overwrite_on_receive = False
+fetch_auto_compress = True
+fetch_jail = None
+save_path = None
+show_phy_rates = False
 allowed_identity_hashes = []
 
-def listen(configdir, verbosity = 0, quietness = 0, allowed = [], display_identity = False, limit = None, disable_auth = None, announce = False):
-    global allow_all, allowed_identity_hashes
-    from tempfile import TemporaryFile
+REQ_FETCH_NOT_ALLOWED = 0xF0
+
+es = " "
+erase_str = "\33[2K\r"
+
+def listen(configdir, verbosity = 0, quietness = 0, allowed = [], display_identity = False,
+           limit = None, disable_auth = None, fetch_allowed = False, no_compress=False,
+           jail = None, save = None, announce = False, allow_overwrite=False):
+
+    global allow_all, allow_fetch, allowed_identity_hashes, fetch_jail, save_path
+    global fetch_auto_compress, allow_overwrite_on_receive
+
+    allow_fetch = fetch_allowed
+    fetch_auto_compress = not no_compress
+    allow_overwrite_on_receive = allow_overwrite
     identity = None
     if announce < 0:
         announce = False
@@ -45,6 +72,24 @@ def listen(configdir, verbosity = 0, quietness = 0, allowed = [], display_identi
     targetloglevel = 3+verbosity-quietness
     reticulum = RNS.Reticulum(configdir=configdir, loglevel=targetloglevel)
 
+    if jail != None:
+        fetch_jail = os.path.abspath(os.path.expanduser(jail))
+        RNS.log("Restricting fetch requests to paths under \""+fetch_jail+"\"", RNS.LOG_VERBOSE)
+
+    if save != None:
+        sp = os.path.abspath(os.path.expanduser(save))
+        if os.path.isdir(sp):
+            if os.access(sp, os.W_OK):
+                save_path = sp
+            else:
+                RNS.log("Output directory not writable", RNS.LOG_ERROR)
+                RNS.exit(4)
+        else:
+            RNS.log("Output directory not found", RNS.LOG_ERROR)
+            RNS.exit(3)
+
+        RNS.log("Saving received files in \""+save_path+"\"", RNS.LOG_VERBOSE)
+
     identity_path = RNS.Reticulum.identitypath+"/"+APP_NAME
     if os.path.isfile(identity_path):
         identity = RNS.Identity.from_file(identity_path)                
@@ -59,7 +104,7 @@ def listen(configdir, verbosity = 0, quietness = 0, allowed = [], display_identi
     if display_identity:
         print("Identity     : "+str(identity))
         print("Listening on : "+RNS.prettyhexrep(destination.hash))
-        exit(0)
+        RNS.exit(0)
 
     if disable_auth:
         allow_all = True
@@ -109,18 +154,31 @@ def listen(configdir, verbosity = 0, quietness = 0, allowed = [], display_identi
                         raise ValueError("Invalid destination entered. Check your input.")
                 except Exception as e:
                     print(str(e))
-                    exit(1)
+                    RNS.exit(1)
 
     if len(allowed_identity_hashes) < 1 and not disable_auth:
         print("Warning: No allowed identities configured, rncp will not accept any files!")
 
     def fetch_request(path, data, request_id, link_id, remote_identity, requested_at):
+        global allow_fetch, fetch_jail, fetch_auto_compress
+        if not allow_fetch:
+            return REQ_FETCH_NOT_ALLOWED
+
+        if fetch_jail:
+            if data.startswith(fetch_jail+"/"):
+                data = data.replace(fetch_jail+"/", "")
+            file_path = os.path.abspath(os.path.expanduser(f"{fetch_jail}/{data}"))
+            if not file_path.startswith(fetch_jail+"/"):
+                RNS.log(f"Disallowing fetch request for {file_path} outside of fetch jail {fetch_jail}", RNS.LOG_WARNING)
+                return REQ_FETCH_NOT_ALLOWED
+        else:
+            file_path = os.path.abspath(os.path.expanduser(f"{data}"))
+
         target_link = None
         for link in RNS.Transport.active_links:
             if link.link_id == link_id:
                 target_link = link
 
-        file_path = os.path.expanduser(data)
         if not os.path.isfile(file_path):
             RNS.log("Client-requested file not found: "+str(file_path), RNS.LOG_VERBOSE)
             return False
@@ -128,30 +186,27 @@ def listen(configdir, verbosity = 0, quietness = 0, allowed = [], display_identi
             if target_link != None:
                 RNS.log("Sending file "+str(file_path)+" to client", RNS.LOG_VERBOSE)
 
-                temp_file = TemporaryFile()
-                real_file = open(file_path, "rb")
-                filename_bytes = os.path.basename(file_path).encode("utf-8")
-                filename_len = len(filename_bytes)
+                try:
+                    metadata = {"name": os.path.basename(file_path).encode("utf-8") }
+                    fetch_resource = RNS.Resource(open(file_path, "rb"), target_link, metadata=metadata, auto_compress=fetch_auto_compress)
+                    return True
 
-                if filename_len > 0xFFFF:
-                    print("Filename exceeds max size, cannot send")
-                    exit(1)
-                else:
-                    print("Preparing file...", end=" ")
+                except Exception as e:
+                    RNS.log(f"Could not send file to client. The contained exception was: {e}", RNS.LOG_ERROR)
+                    return False
 
-                temp_file.write(filename_len.to_bytes(2, "big"))
-                temp_file.write(filename_bytes)
-                temp_file.write(real_file.read())
-                temp_file.seek(0)
-
-                fetch_resource = RNS.Resource(temp_file, target_link)
-                return True
             else:
                 return None
 
 
     destination.set_link_established_callback(client_link_established)
-    destination.register_request_handler("fetch_file", response_generator=fetch_request, allow=RNS.Destination.ALLOW_LIST, allowed_list=allowed_identity_hashes)
+    if allow_fetch:
+        if allow_all:
+            RNS.log("Allowing unauthenticated fetch requests", RNS.LOG_WARNING)
+            destination.register_request_handler("fetch_file", response_generator=fetch_request, allow=RNS.Destination.ALLOW_ALL)
+        else:
+            destination.register_request_handler("fetch_file", response_generator=fetch_request, allow=RNS.Destination.ALLOW_LIST, allowed_list=allowed_identity_hashes)
+
     print("rncp listening on "+RNS.prettyhexrep(destination.hash))
 
     if announce >= 0:
@@ -164,8 +219,7 @@ def listen(configdir, verbosity = 0, quietness = 0, allowed = [], display_identi
 
         threading.Thread(target=job, daemon=True).start()
     
-    while True:
-        time.sleep(1)
+    while True: time.sleep(1)
 
 def client_link_established(link):
     RNS.log("Incoming link established", RNS.LOG_VERBOSE)
@@ -210,25 +264,42 @@ def receive_resource_started(resource):
     print("Starting resource transfer "+RNS.prettyhexrep(resource.hash)+id_str)
 
 def receive_resource_concluded(resource):
+    global save_path, allow_overwrite_on_receive
     if resource.status == RNS.Resource.COMPLETE:
         print(str(resource)+" completed")
 
-        if resource.total_size > 4:
-            filename_len = int.from_bytes(resource.data.read(2), "big")
-            filename = resource.data.read(filename_len).decode("utf-8")
-
-            counter = 0
-            saved_filename = filename
-            while os.path.isfile(saved_filename):
-                counter += 1
-                saved_filename = filename+"."+str(counter)
-            
-            file = open(saved_filename, "wb")
-            file.write(resource.data.read())
-            file.close()
+        if resource.metadata == None:
+            print("Invalid data received, ignoring resource")
+            return
 
         else:
-            print("Invalid data received, ignoring resource")
+            try:
+                filename = os.path.basename(resource.metadata["name"].decode("utf-8"))
+                counter = 0
+                if save_path:
+                    saved_filename = os.path.abspath(os.path.expanduser(save_path+"/"+filename))
+                    if not saved_filename.startswith(save_path+"/"):
+                        RNS.log(f"Invalid save path {saved_filename}, ignoring", RNS.LOG_ERROR)
+                        return
+                else:
+                    saved_filename = filename
+
+                full_save_path = saved_filename
+                if allow_overwrite_on_receive:
+                    if os.path.isfile(full_save_path):
+                        try: os.unlink(full_save_path)
+                        except Exception as e:
+                            RNS.log(f"Could not overwrite existing file {full_save_path}, renaming instead", RNS.LOG_ERROR)
+
+                while os.path.isfile(full_save_path):
+                    counter += 1
+                    full_save_path = saved_filename+"."+str(counter)
+
+                shutil.move(resource.data.name, full_save_path)
+
+            except Exception as e:
+                RNS.log(f"An error occurred while saving received resource: {e}", RNS.LOG_ERROR)
+                return
 
     else:
         print("Resource failed")
@@ -237,33 +308,60 @@ resource_done = False
 current_resource = None
 stats = []
 speed = 0.0
+phy_speed = 0.0
+phy_got_total = 0
 def sender_progress(resource):
     stats_max = 32
-    global current_resource, stats, speed, resource_done
+    global current_resource, stats, speed, phy_speed, phy_got_total, resource_done
     current_resource = resource
+    
     now = time.time()
-    got = current_resource.get_progress()*current_resource.total_size
-    entry = [now, got]
+    got = current_resource.get_progress()*current_resource.get_data_size()
+    phy_got = current_resource.get_segment_progress()*current_resource.get_transfer_size()
+    
+    entry = [now, got, phy_got]
     stats.append(entry)
+
     while len(stats) > stats_max:
         stats.pop(0)
 
     span = now - stats[0][0]
     if span == 0:
         speed = 0
+        phy_speed = 0
+    
     else:
         diff = got - stats[0][1]
         speed = diff/span
 
+        phy_diff = phy_got - stats[0][2]
+        if phy_diff > 0:
+            phy_speed = phy_diff/span
+            # phy_got_total += phy_diff
+
     if resource.status < RNS.Resource.COMPLETE:
         resource_done = False
     else:
         resource_done = True
 
 link = None
-def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = None, timeout = RNS.Transport.PATH_REQUEST_TIMEOUT, silent=False):
-    global current_resource, resource_done, link, speed
+def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = None, timeout = RNS.Transport.PATH_REQUEST_TIMEOUT, silent=False, phy_rates=False, save=None, allow_overwrite=False):
+    global current_resource, resource_done, link, speed, show_phy_rates, save_path, allow_overwrite_on_receive
     targetloglevel = 3+verbosity-quietness
+    show_phy_rates = phy_rates
+    allow_overwrite_on_receive = allow_overwrite
+
+    if save:
+        sp = os.path.abspath(os.path.expanduser(save))
+        if os.path.isdir(sp):
+            if os.access(sp, os.W_OK):
+                save_path = sp
+            else:
+                RNS.log("Output directory not writable", RNS.LOG_ERROR)
+                RNS.exit(4)
+        else:
+            RNS.log("Output directory not found", RNS.LOG_ERROR)
+            RNS.exit(3)
 
     try:
         dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
@@ -275,7 +373,7 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
             raise ValueError("Invalid destination entered. Check your input.")
     except Exception as e:
         print(str(e))
-        exit(1)
+        RNS.exit(1)
 
     reticulum = RNS.Reticulum(configdir=configdir, loglevel=targetloglevel)
 
@@ -284,7 +382,7 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
         identity = RNS.Identity.from_file(identity_path)
         if identity == None:
             RNS.log("Could not load identity for rncp. The identity file at \""+str(identity_path)+"\" may be corrupt or unreadable.", RNS.LOG_ERROR)
-            exit(2)
+            RNS.exit(2)
     else:
         identity = None
 
@@ -298,7 +396,7 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
         if silent:
             print("Path to "+RNS.prettyhexrep(destination_hash)+" requested")
         else:
-            print("Path to "+RNS.prettyhexrep(destination_hash)+" requested  ", end=" ")
+            print("Path to "+RNS.prettyhexrep(destination_hash)+" requested  ", end=es)
         sys.stdout.flush()
 
     i = 0
@@ -315,13 +413,13 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
         if silent:
             print("Path not found")
         else:
-            print("\r                                                            \rPath not found")
-        exit(1)
+            print(f"{erase_str}Path not found")
+        RNS.exit(1)
     else:
         if silent:
             print("Establishing link with "+RNS.prettyhexrep(destination_hash))
         else:
-            print("\r                                                            \rEstablishing link with "+RNS.prettyhexrep(destination_hash)+"  ", end=" ")
+            print(f"{erase_str}Establishing link with "+RNS.prettyhexrep(destination_hash)+"  ", end=es)
 
     listener_identity = RNS.Identity.recall(destination_hash)
     listener_destination = RNS.Destination(
@@ -344,13 +442,13 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
         if silent:
             print("Could not establish link with "+RNS.prettyhexrep(destination_hash))
         else:
-            print("\r                                                            \rCould not establish link with "+RNS.prettyhexrep(destination_hash))
-        exit(1)
+            print(f"{erase_str}Could not establish link with "+RNS.prettyhexrep(destination_hash))
+        RNS.exit(1)
     else:
         if silent:
             print("Requesting file from remote...")
         else:
-            print("\r                                                            \rRequesting file from remote  ", end=" ")
+            print(f"{erase_str}Requesting file from remote  ", end=es)
 
     link.identify(identity)
 
@@ -359,12 +457,15 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
     resource_resolved = False
     resource_status = "unrequested"
     current_resource = None
+    current_transfer_started = None
     def request_response(request_receipt):
         nonlocal request_resolved, request_status
         if request_receipt.response == False:
             request_status = "not_found"
         elif request_receipt.response == None:
             request_status = "remote_error"
+        elif request_receipt.response == REQ_FETCH_NOT_ALLOWED:
+            request_status = "fetch_not_allowed"
         else:
             request_status = "found"
 
@@ -376,32 +477,48 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
         request_resolved = True
 
     def fetch_resource_started(resource):
-        nonlocal resource_status
+        nonlocal resource_status, current_transfer_started
         current_resource = resource
         current_resource.progress_callback(sender_progress)
         resource_status = "started"
+        if not current_transfer_started: current_transfer_started = time.time()
 
     def fetch_resource_concluded(resource):
         nonlocal resource_resolved, resource_status
+        global save_path, allow_overwrite_on_receive
         if resource.status == RNS.Resource.COMPLETE:
-            if resource.total_size > 4:
-                filename_len = int.from_bytes(resource.data.read(2), "big")
-                filename = resource.data.read(filename_len).decode("utf-8")
-
-                counter = 0
-                saved_filename = filename
-                while os.path.isfile(saved_filename):
-                    counter += 1
-                    saved_filename = filename+"."+str(counter)
-                
-                file = open(saved_filename, "wb")
-                file.write(resource.data.read())
-                file.close()
-                resource_status = "completed"
+            if resource.metadata == None:
+                print("Invalid data received, ignoring resource")
+                return
 
             else:
-                print("Invalid data received, ignoring resource")
-                resource_status = "invalid_data"
+                try:
+                    filename = os.path.basename(resource.metadata["name"].decode("utf-8"))
+                    counter = 0
+                    if save_path:
+                        saved_filename = os.path.abspath(os.path.expanduser(save_path+"/"+filename))
+                        if not saved_filename.startswith(save_path+"/"):
+                            print(f"Invalid save path {saved_filename}, ignoring")
+                            return
+                    else:
+                        saved_filename = filename
+
+                    full_save_path = saved_filename
+                    if allow_overwrite_on_receive:
+                        if os.path.isfile(full_save_path):
+                            try: os.unlink(full_save_path)
+                            except Exception as e:
+                                print(f"Could not overwrite existing file {full_save_path}, renaming instead")
+
+                    while os.path.isfile(full_save_path):
+                        counter += 1
+                        full_save_path = saved_filename+"."+str(counter)
+
+                    shutil.move(resource.data.name, full_save_path)
+
+                except Exception as e:
+                    print(f"An error occurred while saving received resource: {e}")
+                    return
 
         else:
             print("Resource failed")
@@ -422,26 +539,32 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
             sys.stdout.flush()
             i = (i+1)%len(syms)
 
-    if request_status == "not_found":
-        if not silent: print("\r                                                            \r", end="")
+    if request_status == "fetch_not_allowed":
+        if not silent: print(f"{erase_str}", end="")
+        print("Fetch request failed, fetching the file "+str(file)+" was not allowed by the remote")
+        link.teardown()
+        time.sleep(0.15)
+        RNS.exit(0)
+    elif request_status == "not_found":
+        if not silent: print(f"{erase_str}", end="")
         print("Fetch request failed, the file "+str(file)+" was not found on the remote")
         link.teardown()
-        time.sleep(1)
-        exit(0)
+        time.sleep(0.15)
+        RNS.exit(0)
     elif request_status == "remote_error":
-        if not silent: print("\r                                                            \r", end="")
+        if not silent: print(f"{erase_str}", end="")
         print("Fetch request failed due to an error on the remote system")
         link.teardown()
-        time.sleep(1)
-        exit(0)
+        time.sleep(0.15)
+        RNS.exit(0)
     elif request_status == "unknown":
-        if not silent: print("\r                                                            \r", end="")
+        if not silent: print(f"{erase_str}", end="")
         print("Fetch request failed due to an unknown error (probably not authorised)")
         link.teardown()
-        time.sleep(1)
-        exit(0)
+        time.sleep(0.15)
+        RNS.exit(0)
     elif request_status == "found":
-        if not silent: print("\r                                                            \r", end="")
+        if not silent: print(f"{erase_str}", end="")
 
     while not resource_resolved:
         if not silent:
@@ -449,36 +572,52 @@ def fetch(configdir, verbosity = 0, quietness = 0, destination = None, file = No
             if current_resource:
                 prg = current_resource.get_progress()
                 percent = round(prg * 100.0, 1)
-                stat_str = str(percent)+"% - " + size_str(int(prg*current_resource.total_size)) + " of " + size_str(current_resource.total_size) + " - " +size_str(speed, "b")+"ps"
-                print("\r                                                                                  \rTransferring file "+syms[i]+" "+stat_str, end=" ")
+                if show_phy_rates:
+                    pss = size_str(phy_speed, "b")
+                    phy_str = f" ({pss}ps at physical layer)"
+                else:
+                    phy_str = ""
+                ps = size_str(int(prg*current_resource.total_size))
+                ts = size_str(current_resource.total_size)
+                ss = size_str(speed, "b")
+                stat_str = f"{percent}% - {ps} of {ts} - {ss}ps{phy_str}"
+                if prg != 1.0:
+                    print(f"{erase_str}Transferring file {syms[i]} {stat_str}", end=es)
+                else:
+                    end_time = time.time(); delta_time = end_time - current_transfer_started
+                    speed = current_resource.total_size/delta_time; dt_str = RNS.prettytime(delta_time)
+                    ss = size_str(speed, "b")
+                    stat_str = f"{percent}% - {ps} of {ts} in {dt_str} - {ss}ps{phy_str}"
+                    print(f"{erase_str}Transfer complete  {stat_str}", end=es)
             else:
-                print("\r                                                                                  \rWaiting for transfer to start "+syms[i]+" ", end=" ")
+                print(f"{erase_str}Waiting for transfer to start {syms[i]} ", end=es)
             sys.stdout.flush()
             i = (i+1)%len(syms)
 
-    if current_resource.status != RNS.Resource.COMPLETE:
+    if not current_resource or current_resource.status != RNS.Resource.COMPLETE:
         if silent:
             print("The transfer failed")
         else:
-            print("\r                                                            \rThe transfer failed")
-        exit(1)
+            print(f"{erase_str}The transfer failed")
+        RNS.exit(1)
     else:
         if silent:
-            print(str(file_path)+" copied to "+RNS.prettyhexrep(destination_hash))
+            print(str(file)+" fetched from "+RNS.prettyhexrep(destination_hash))
         else:
-            print("\r                                                                                  \r"+str(file)+" fetched from "+RNS.prettyhexrep(destination_hash))
+            print("\n"+str(file)+" fetched from "+RNS.prettyhexrep(destination_hash))
         link.teardown()
-        time.sleep(0.25)
-        exit(0)
+        time.sleep(0.1)
+        RNS.exit(0)
 
     link.teardown()
-    exit(0)
+    time.sleep(0.1)
+    RNS.exit(0)
 
 
-def send(configdir, verbosity = 0, quietness = 0, destination = None, file = None, timeout = RNS.Transport.PATH_REQUEST_TIMEOUT, silent=False):
-    global current_resource, resource_done, link, speed
-    from tempfile import TemporaryFile
+def send(configdir, verbosity = 0, quietness = 0, destination = None, file = None, timeout = RNS.Transport.PATH_REQUEST_TIMEOUT, silent=False, phy_rates=False, no_compress=False):
+    global current_resource, resource_done, link, speed, show_phy_rates, phy_got_total, phy_speed
     targetloglevel = 3+verbosity-quietness
+    show_phy_rates = phy_rates
 
     try:
         dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
@@ -490,31 +629,17 @@ def send(configdir, verbosity = 0, quietness = 0, destination = None, file = Non
             raise ValueError("Invalid destination entered. Check your input.")
     except Exception as e:
         print(str(e))
-        exit(1)
+        RNS.exit(1)
 
     
     file_path = os.path.expanduser(file)
     if not os.path.isfile(file_path):
         print("File not found")
-        exit(1)
+        sys.exit(1)
 
-    temp_file = TemporaryFile()
-    real_file = open(file_path, "rb")
-    filename_bytes = os.path.basename(file_path).encode("utf-8")
-    filename_len = len(filename_bytes)
+    metadata = {"name": os.path.basename(file_path).encode("utf-8") }
 
-    if filename_len > 0xFFFF:
-        print("Filename exceeds max size, cannot send")
-        exit(1)
-    else:
-        print("Preparing file...", end=" ")
-
-    temp_file.write(filename_len.to_bytes(2, "big"))
-    temp_file.write(filename_bytes)
-    temp_file.write(real_file.read())
-    temp_file.seek(0)
-
-    print("\r                                                            \r", end="")
+    print(f"{erase_str}", end="")
 
     reticulum = RNS.Reticulum(configdir=configdir, loglevel=targetloglevel)
 
@@ -523,7 +648,7 @@ def send(configdir, verbosity = 0, quietness = 0, destination = None, file = Non
         identity = RNS.Identity.from_file(identity_path)
         if identity == None:
             RNS.log("Could not load identity for rncp. The identity file at \""+str(identity_path)+"\" may be corrupt or unreadable.", RNS.LOG_ERROR)
-            exit(2)
+            RNS.exit(2)
     else:
         identity = None
 
@@ -537,7 +662,7 @@ def send(configdir, verbosity = 0, quietness = 0, destination = None, file = Non
         if silent:
             print("Path to "+RNS.prettyhexrep(destination_hash)+" requested")
         else:
-            print("Path to "+RNS.prettyhexrep(destination_hash)+" requested  ", end=" ")
+            print("Path to "+RNS.prettyhexrep(destination_hash)+" requested  ", end=es)
         sys.stdout.flush()
 
     i = 0
@@ -554,13 +679,13 @@ def send(configdir, verbosity = 0, quietness = 0, destination = None, file = Non
         if silent:
             print("Path not found")
         else:
-            print("\r                                                            \rPath not found")
-        exit(1)
+            print(f"{erase_str}Path not found")
+        RNS.exit(1)
     else:
         if silent:
             print("Establishing link with "+RNS.prettyhexrep(destination_hash))
         else:
-            print("\r                                                            \rEstablishing link with "+RNS.prettyhexrep(destination_hash)+" ", end=" ")
+            print(f"{erase_str}Establishing link with "+RNS.prettyhexrep(destination_hash)+" ", end=es)
 
     receiver_identity = RNS.Identity.recall(destination_hash)
     receiver_destination = RNS.Destination(
@@ -583,22 +708,28 @@ def send(configdir, verbosity = 0, quietness = 0, destination = None, file = Non
         if silent:
             print("Link establishment with "+RNS.prettyhexrep(destination_hash)+" timed out")
         else:
-            print("\r                                                            \rLink establishment with "+RNS.prettyhexrep(destination_hash)+" timed out")
-        exit(1)
+            print(f"{erase_str}Link establishment with "+RNS.prettyhexrep(destination_hash)+" timed out")
+        RNS.exit(1)
     elif not RNS.Transport.has_path(destination_hash):
         if silent:
             print("No path found to "+RNS.prettyhexrep(destination_hash))
         else:
-            print("\r                                                            \rNo path found to "+RNS.prettyhexrep(destination_hash))
-        exit(1)
+            print(f"{erase_str}No path found to "+RNS.prettyhexrep(destination_hash))
+        RNS.exit(1)
     else:
         if silent:
             print("Advertising file resource...")
         else:
-            print("\r                                                            \rAdvertising file resource  ", end=" ")
+            print(f"{erase_str}Advertising file resource  ", end=es)
 
     link.identify(identity)
-    resource = RNS.Resource(temp_file, link, callback = sender_progress, progress_callback = sender_progress)
+    auto_compress = True
+    if no_compress: auto_compress = False
+    try: resource = RNS.Resource(open(file_path, "rb"), link, metadata=metadata, callback = sender_progress, progress_callback = sender_progress, auto_compress = auto_compress)
+    except Exception as e:
+        print(f"Could not start transfer: {e}")
+        RNS.exit(1)
+
     current_resource = resource
 
     while resource.status < RNS.Resource.TRANSFERRING:
@@ -608,45 +739,68 @@ def send(configdir, verbosity = 0, quietness = 0, destination = None, file = Non
             sys.stdout.flush()
             i = (i+1)%len(syms)
 
+    resource_started_at = time.time()
     
     if resource.status > RNS.Resource.COMPLETE:
         if silent:
             print("File was not accepted by "+RNS.prettyhexrep(destination_hash))
         else:
-            print("\r                                                            \rFile was not accepted by "+RNS.prettyhexrep(destination_hash))
-        exit(1)
+            print(f"{erase_str}File was not accepted by "+RNS.prettyhexrep(destination_hash))
+        RNS.exit(1)
     else:
         if silent:
             print("Transferring file...")
         else:
-            print("\r                                                            \rTransferring file  ", end=" ")
+            print(f"{erase_str}Transferring file  ", end=es)
+
+    def progress_update(i, done=False):
+        time.sleep(0.1)
+        prg = current_resource.get_progress()
+        percent = round(prg * 100.0, 1)
+        if show_phy_rates and not resource_done:
+            pss = size_str(phy_speed, "b")
+            phy_str = f" ({pss}ps at physical layer)"
+        else:
+            phy_str = ""
+        es = "  "
+        cs = size_str(int(prg*current_resource.total_size))
+        ts = size_str(current_resource.total_size)
+        ss = size_str(speed, "b")
+        stat_str = f"{percent}% - {cs} of {ts} - {ss}ps{phy_str}"
+        if not done:
+            print(f"{erase_str}Transferring file "+syms[i]+" "+stat_str, end=es)
+        else:
+            print(f"{erase_str}Transfer complete  "+stat_str, end=es)
+        sys.stdout.flush()
+        i = (i+1)%len(syms)
+        return i
 
     while not resource_done:
         if not silent:
-            time.sleep(0.1)
-            prg = current_resource.get_progress()
-            percent = round(prg * 100.0, 1)
-            stat_str = str(percent)+"% - " + size_str(int(prg*current_resource.total_size)) + " of " + size_str(current_resource.total_size) + " - " +size_str(speed, "b")+"ps"
-            print("\r                                                                                  \rTransferring file "+syms[i]+" "+stat_str, end=" ")
-            sys.stdout.flush()
-            i = (i+1)%len(syms)
+            i = progress_update(i)
+
+    resource_concluded_at = time.time()
+    transfer_time = resource_concluded_at - resource_started_at
+    speed = current_resource.total_size/transfer_time
+    # phy_speed = phy_got_total/transfer_time
+
+    if not silent:
+        i = progress_update(i, done=True)
 
     if current_resource.status != RNS.Resource.COMPLETE:
         if silent:
             print("The transfer failed")
         else:
-            print("\r                                                            \rThe transfer failed")
-        exit(1)
+            print(f"{erase_str}The transfer failed")
+        RNS.exit(1)
     else:
         if silent:
             print(str(file_path)+" copied to "+RNS.prettyhexrep(destination_hash))
         else:
-            print("\r                                                                                  \r"+str(file_path)+" copied to "+RNS.prettyhexrep(destination_hash))
+            print("\n"+str(file_path)+" copied to "+RNS.prettyhexrep(destination_hash))
         link.teardown()
         time.sleep(0.25)
-        real_file.close()
-        temp_file.close()
-        exit(0)
+        RNS.exit(0)
 
 def main():
     try:
@@ -658,12 +812,18 @@ def main():
         parser.add_argument('-q', '--quiet', action='count', default=0, help="decrease verbosity")
         parser.add_argument("-S", '--silent', action='store_true', default=False, help="disable transfer progress output")
         parser.add_argument("-l", '--listen', action='store_true', default=False, help="listen for incoming transfer requests")
+        parser.add_argument("-C", '--no-compress', action='store_true', default=False, help="disable automatic compression")
+        parser.add_argument("-F", '--allow-fetch', action='store_true', default=False, help="allow authenticated clients to fetch files")
         parser.add_argument("-f", '--fetch', action='store_true', default=False, help="fetch file from remote listener instead of sending")
+        parser.add_argument("-j", "--jail", metavar="path", action="store", default=None, help="restrict fetch requests to specified path", type=str)
+        parser.add_argument("-s", "--save", metavar="path", action="store", default=None, help="save received files in specified path", type=str)
+        parser.add_argument('-O', '--overwrite', action='store_true', default=False, help="Allow overwriting received files, instead of adding postfix")
         parser.add_argument("-b", action='store', metavar="seconds", default=-1, help="announce interval, 0 to only announce at startup", type=int)
-        parser.add_argument('-a', metavar="allowed_hash", dest="allowed", action='append', help="accept from this identity", type=str)
-        parser.add_argument('-n', '--no-auth', action='store_true', default=False, help="accept files from anyone")
+        parser.add_argument('-a', metavar="allowed_hash", dest="allowed", action='append', help="allow this identity (or add in ~/.rncp/allowed_identities)", type=str)
+        parser.add_argument('-n', '--no-auth', action='store_true', default=False, help="accept requests from anyone")
         parser.add_argument('-p', '--print-identity', action='store_true', default=False, help="print identity and destination info and exit")
         parser.add_argument("-w", action="store", metavar="seconds", type=float, help="sender timeout before giving up", default=RNS.Transport.PATH_REQUEST_TIMEOUT)
+        parser.add_argument('-P', '--phy-rates', action='store_true', default=False, help="display physical layer transfer rates")
         # parser.add_argument("--limit", action="store", metavar="files", type=float, help="maximum number of files to accept", default=None)
         parser.add_argument("--version", action="version", version="rncp {version}".format(version=__version__))
         
@@ -675,10 +835,15 @@ def main():
                 verbosity=args.verbose,
                 quietness=args.quiet,
                 allowed = args.allowed,
+                fetch_allowed = args.allow_fetch,
+                no_compress = args.no_compress,
+                jail = args.jail,
+                save = args.save,
                 display_identity=args.print_identity,
                 # limit=args.limit,
                 disable_auth=args.no_auth,
                 announce=args.b,
+                allow_overwrite=args.overwrite,
             )
 
         elif args.fetch:
@@ -691,6 +856,9 @@ def main():
                     file = args.file,
                     timeout = args.w,
                     silent = args.silent,
+                    phy_rates = args.phy_rates,
+                    save = args.save,
+                    allow_overwrite=args.overwrite,
                 )
             else:
                 print("")
@@ -706,6 +874,8 @@ def main():
                 file = args.file,
                 timeout = args.w,
                 silent = args.silent,
+                phy_rates = args.phy_rates,
+                no_compress = args.no_compress,
             )
 
         else:
@@ -719,7 +889,7 @@ def main():
             resource.cancel()
         if link != None:
             link.teardown()
-        exit()
+        RNS.exit()
 
 def size_str(num, suffix='B'):
     units = ['','K','M','G','T','P','E','Z']

RNS/Utilities/rnid.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2023 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -11,8 +11,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -63,7 +71,7 @@ def main():
         # parser.add_argument("file", nargs="?", default=None, help="input file path", type=str)
 
         parser.add_argument("--config", metavar="path", action="store", default=None, help="path to alternative Reticulum config directory", type=str)
-        parser.add_argument("-i", "--identity", metavar="identity", action="store", default=None, help="hexadecimal Reticulum Destination hash or path to Identity file", type=str)
+        parser.add_argument("-i", "--identity", metavar="identity", action="store", default=None, help="hexadecimal Reticulum identity or destination hash, or path to Identity file", type=str)
         parser.add_argument("-g", "--generate", metavar="file", action="store", default=None, help="generate a new Identity")
         parser.add_argument("-m", "--import", dest="import_str", metavar="identity_data", action="store", default=None, help="import Reticulum identity in hex, base32 or base64 format", type=str)
         parser.add_argument("-x", "--export", action="store_true", default=None, help="export identity to hex, base32 or base64 format")
@@ -205,29 +213,32 @@ def main():
             if len(identity_str) == RNS.Reticulum.TRUNCATED_HASHLENGTH//8*2 and not os.path.isfile(identity_str):
                 # Try recalling Identity from hex-encoded hash
                 try:
-                    destination_hash = bytes.fromhex(identity_str)
-                    identity = RNS.Identity.recall(destination_hash)
+                    ident_hash = bytes.fromhex(identity_str)
+                    identity = RNS.Identity.recall(ident_hash) or RNS.Identity.recall(ident_hash, from_identity_hash=True)
 
                     if identity == None:
                         if not args.request:
-                            RNS.log("Could not recall Identity for "+RNS.prettyhexrep(destination_hash)+".", RNS.LOG_ERROR)
+                            RNS.log("Could not recall Identity for "+RNS.prettyhexrep(ident_hash)+".", RNS.LOG_ERROR)
                             RNS.log("You can query the network for unknown Identities with the -R option.", RNS.LOG_ERROR)
                             exit(5)
                         else:
-                            RNS.Transport.request_path(destination_hash)
+                            RNS.Transport.request_path(ident_hash)
                             def spincheck():
-                                return RNS.Identity.recall(destination_hash) != None
-                            spin(spincheck, "Requesting unknown Identity for "+RNS.prettyhexrep(destination_hash), args.t)
+                                return RNS.Identity.recall(ident_hash) != None
+                            spin(spincheck, "Requesting unknown Identity for "+RNS.prettyhexrep(ident_hash), args.t)
 
                             if not spincheck():
                                 RNS.log("Identity request timed out", RNS.LOG_ERROR)
                                 exit(6)
                             else:
-                                identity = RNS.Identity.recall(destination_hash)
-                                RNS.log("Received Identity "+str(identity)+" for destination "+RNS.prettyhexrep(destination_hash)+" from the network")
+                                identity = RNS.Identity.recall(ident_hash)
+                                RNS.log("Received Identity "+str(identity)+" for destination "+RNS.prettyhexrep(ident_hash)+" from the network")
 
                     else:
-                        RNS.log("Recalled Identity "+str(identity)+" for destination "+RNS.prettyhexrep(destination_hash))
+                        ident_str = str(identity)
+                        hash_str  = RNS.prettyhexrep(ident_hash)
+                        if ident_str == hash_str: RNS.log(f"Recalled Identity {ident_str}")
+                        else:                     RNS.log(f"Recalled Identity {ident_str} for destination {hash_str}")
 
 
                 except Exception as e:
@@ -286,6 +297,7 @@ def main():
                                 destination = RNS.Destination(identity, RNS.Destination.IN, RNS.Destination.SINGLE, app_name, *aspects)
                                 RNS.log("Created destination "+str(destination))
                                 RNS.log("Announcing destination "+RNS.prettyhexrep(destination.hash))
+                                time.sleep(1.1)
                                 destination.announce()
                                 time.sleep(0.25)
                                 exit(0)

RNS/Utilities/rnir.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2023 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -11,8 +11,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

RNS/Utilities/rnpath.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -11,8 +11,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -23,14 +31,95 @@
 # SOFTWARE.
 
 import RNS
+import os
 import sys
 import time
 import argparse
 
 from RNS._version import __version__
 
+remote_link = None
+def connect_remote(destination_hash, auth_identity, timeout, no_output = False):
+    global remote_link, reticulum
+    if not RNS.Transport.has_path(destination_hash):
+        if not no_output:
+            print("Path to "+RNS.prettyhexrep(destination_hash)+" requested", end=" ")
+            sys.stdout.flush()
+        RNS.Transport.request_path(destination_hash)
+        pr_time = time.time()
+        while not RNS.Transport.has_path(destination_hash):
+            time.sleep(0.1)
+            if time.time() - pr_time > timeout:
+                if not no_output:
+                    print("\r                                                          \r", end="")
+                    print("Path request timed out")
+                    exit(12)
+
+    remote_identity = RNS.Identity.recall(destination_hash)
+
+    def remote_link_closed(link):
+        if link.teardown_reason == RNS.Link.TIMEOUT:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("The link timed out, exiting now")
+        elif link.teardown_reason == RNS.Link.DESTINATION_CLOSED:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("The link was closed by the server, exiting now")
+        else:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("Link closed unexpectedly, exiting now")
+        exit(10)
+
+    def remote_link_established(link):
+        global remote_link
+        link.identify(auth_identity)
+        remote_link = link
+
+    if not no_output:
+        print("\r                                                          \r", end="")
+        print("Establishing link with remote transport instance...", end=" ")
+        sys.stdout.flush()
+
+    remote_destination = RNS.Destination(remote_identity, RNS.Destination.OUT, RNS.Destination.SINGLE, "rnstransport", "remote", "management")
+    link = RNS.Link(remote_destination)
+    link.set_link_established_callback(remote_link_established)
+    link.set_link_closed_callback(remote_link_closed)
+
+def program_setup(configdir, table, rates, drop, destination_hexhash, verbosity, timeout, drop_queues,
+                  drop_via, max_hops, remote=None, management_identity=None, remote_timeout=RNS.Transport.PATH_REQUEST_TIMEOUT,
+                  no_output=False, json=False):
+    global remote_link, reticulum
+    reticulum = RNS.Reticulum(configdir = configdir, loglevel = 3+verbosity)
+    if remote:
+        try:
+            dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
+            if len(remote) != dest_len:
+                raise ValueError("Destination length is invalid, must be {hex} hexadecimal characters ({byte} bytes).".format(hex=dest_len, byte=dest_len//2))
+            try:
+                identity_hash = bytes.fromhex(remote)
+                remote_hash = RNS.Destination.hash_from_name_and_identity("rnstransport.remote.management", identity_hash)
+            except Exception as e:
+                raise ValueError("Invalid destination entered. Check your input.")
+
+            identity = RNS.Identity.from_file(os.path.expanduser(management_identity))
+            if identity == None:
+                raise ValueError("Could not load management identity from "+str(management_identity))
+
+            try:
+                connect_remote(remote_hash, identity, remote_timeout, no_output)
+            except Exception as e:
+                raise e
+
+        except Exception as e:
+            print(str(e))
+            exit(20)
+
+        while remote_link == None:
+            time.sleep(0.1)
+
 
-def program_setup(configdir, table, rates, drop, destination_hexhash, verbosity, timeout, drop_queues, drop_via):
     if table:
         destination_hash = None
         if destination_hexhash != None:
@@ -46,23 +135,50 @@ def program_setup(configdir, table, rates, drop, destination_hexhash, verbosity,
                 print(str(e))
                 sys.exit(1)
 
-        reticulum = RNS.Reticulum(configdir = configdir, loglevel = 3+verbosity)
-        table = sorted(reticulum.get_path_table(), key=lambda e: (e["interface"], e["hops"]) )
+        if not remote_link:
+            table = sorted(reticulum.get_path_table(max_hops=max_hops), key=lambda e: (e["interface"], e["hops"]) )
+        else:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("Sending request...", end=" ")
+                sys.stdout.flush()
+            receipt = remote_link.request("/path", data = ["table", destination_hash, max_hops])
+            while not receipt.concluded():
+                time.sleep(0.1)
+            response = receipt.get_response()
+            if response:
+                table = response
+                print("\r                                                          \r", end="")
+            else:
+                if not no_output:
+                    print("\r                                                          \r", end="")
+                    print("The remote request failed. Likely authentication failure.")
+                exit(10)
 
         displayed = 0
-        for path in table:
-            if destination_hash == None or destination_hash == path["hash"]:
-                displayed += 1
-                exp_str = RNS.timestamp_str(path["expires"])
-                if path["hops"] == 1:
-                    m_str = " "
-                else:
-                    m_str = "s"
-                print(RNS.prettyhexrep(path["hash"])+" is "+str(path["hops"])+" hop"+m_str+" away via "+RNS.prettyhexrep(path["via"])+" on "+path["interface"]+" expires "+RNS.timestamp_str(path["expires"]))
+        if json:
+            import json
+            for p in table:
+                for k in p:
+                    if isinstance(p[k], bytes):
+                        p[k] = RNS.hexrep(p[k], delimit=False)
 
-        if destination_hash != None and displayed == 0:
-            print("No path known")
-            sys.exit(1)
+            print(json.dumps(table))
+            exit()
+        else:
+            for path in table:
+                if destination_hash == None or destination_hash == path["hash"]:
+                    displayed += 1
+                    exp_str = RNS.timestamp_str(path["expires"])
+                    if path["hops"] == 1:
+                        m_str = " "
+                    else:
+                        m_str = "s"
+                    print(RNS.prettyhexrep(path["hash"])+" is "+str(path["hops"])+" hop"+m_str+" away via "+RNS.prettyhexrep(path["via"])+" on "+path["interface"]+" expires "+RNS.timestamp_str(path["expires"]))
+
+            if destination_hash != None and displayed == 0:
+                print("No path known")
+                sys.exit(1)
 
     elif rates:
         destination_hash = None
@@ -79,60 +195,99 @@ def program_setup(configdir, table, rates, drop, destination_hexhash, verbosity,
                 print(str(e))
                 sys.exit(1)
 
-        reticulum = RNS.Reticulum(configdir = configdir, loglevel = 3+verbosity)
-        table = sorted(reticulum.get_rate_table(), key=lambda e: e["last"] )
-
-        if len(table) == 0:
-            print("No information available")
-
+        if not remote_link:
+            table = reticulum.get_rate_table()
         else:
-            displayed = 0
-            for entry in table:
-                if destination_hash == None or destination_hash == entry["hash"]:
-                    displayed += 1
-                    try:
-                        last_str = pretty_date(int(entry["last"]))
-                        start_ts = entry["timestamps"][0]
-                        span = max(time.time() - start_ts, 3600.0)
-                        span_hours = span/3600.0
-                        span_str = pretty_date(int(entry["timestamps"][0]))
-                        hour_rate = round(len(entry["timestamps"])/span_hours, 3)
-                        if hour_rate-int(hour_rate) == 0:
-                            hour_rate = int(hour_rate)
-                        
-                        if entry["rate_violations"] > 0:
-                            if entry["rate_violations"] == 1:
-                                s_str = ""
-                            else:
-                                s_str = "s"
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("Sending request...", end=" ")
+                sys.stdout.flush()
+            receipt = remote_link.request("/path", data = ["rates", destination_hash])
+            while not receipt.concluded():
+                time.sleep(0.1)
+            response = receipt.get_response()
+            if response:
+                table = response
+                print("\r                                                          \r", end="")
+            else:
+                if not no_output:
+                    print("\r                                                          \r", end="")
+                    print("The remote request failed. Likely authentication failure.")
+                exit(10)
 
-                            rv_str = ", "+str(entry["rate_violations"])+" active rate violation"+s_str
-                        else:
-                            rv_str = ""
-                        
-                        if entry["blocked_until"] > time.time():
-                            bli = time.time()-(int(entry["blocked_until"])-time.time())
-                            bl_str = ", new announces allowed in "+pretty_date(int(bli))
-                        else:
-                            bl_str = ""
+        table = sorted(table, key=lambda e: e["last"])
+        if json:
+            import json
+            for p in table:
+                for k in p:
+                    if isinstance(p[k], bytes):
+                        p[k] = RNS.hexrep(p[k], delimit=False)
 
-        
-                        print(RNS.prettyhexrep(entry["hash"])+" last heard "+last_str+" ago, "+str(hour_rate)+" announces/hour in the last "+span_str+rv_str+bl_str)
-
-                    except Exception as e:
-                        print("Error while processing entry for "+RNS.prettyhexrep(entry["hash"]))
-                        print(str(e))
-
-            if destination_hash != None and displayed == 0:
+            print(json.dumps(table))
+            exit()
+        else:
+            if len(table) == 0:
                 print("No information available")
-                sys.exit(1)
+
+            else:
+                displayed = 0
+                for entry in table:
+                    if destination_hash == None or destination_hash == entry["hash"]:
+                        displayed += 1
+                        try:
+                            last_str = pretty_date(int(entry["last"]))
+                            start_ts = entry["timestamps"][0]
+                            span = max(time.time() - start_ts, 3600.0)
+                            span_hours = span/3600.0
+                            span_str = pretty_date(int(entry["timestamps"][0]))
+                            hour_rate = round(len(entry["timestamps"])/span_hours, 3)
+                            if hour_rate-int(hour_rate) == 0:
+                                hour_rate = int(hour_rate)
+                            
+                            if entry["rate_violations"] > 0:
+                                if entry["rate_violations"] == 1:
+                                    s_str = ""
+                                else:
+                                    s_str = "s"
+
+                                rv_str = ", "+str(entry["rate_violations"])+" active rate violation"+s_str
+                            else:
+                                rv_str = ""
+                            
+                            if entry["blocked_until"] > time.time():
+                                bli = time.time()-(int(entry["blocked_until"])-time.time())
+                                bl_str = ", new announces allowed in "+pretty_date(int(bli))
+                            else:
+                                bl_str = ""
+
+            
+                            print(RNS.prettyhexrep(entry["hash"])+" last heard "+last_str+" ago, "+str(hour_rate)+" announces/hour in the last "+span_str+rv_str+bl_str)
+
+                        except Exception as e:
+                            print("Error while processing entry for "+RNS.prettyhexrep(entry["hash"]))
+                            print(str(e))
+
+                if destination_hash != None and displayed == 0:
+                    print("No information available")
+                    sys.exit(1)
 
     elif drop_queues:
-        reticulum = RNS.Reticulum(configdir = configdir, loglevel = 3+verbosity)
-        RNS.log("Dropping announce queues on all interfaces...")
+        if remote_link:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("Dropping announce queues on remote instances not yet implemented")
+            exit(255)
+
+        print("Dropping announce queues on all interfaces...")
         reticulum.drop_announce_queues()
     
     elif drop:
+        if remote_link:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("Dropping path on remote instances not yet implemented")
+            exit(255)
+
         try:
             dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
             if len(destination_hexhash) != dest_len:
@@ -145,17 +300,19 @@ def program_setup(configdir, table, rates, drop, destination_hexhash, verbosity,
             print(str(e))
             sys.exit(1)
 
-
-        reticulum = RNS.Reticulum(configdir = configdir, loglevel = 3+verbosity)
-
         if reticulum.drop_path(destination_hash):
             print("Dropped path to "+RNS.prettyhexrep(destination_hash))
         else:
             print("Unable to drop path to "+RNS.prettyhexrep(destination_hash)+". Does it exist?")
             sys.exit(1)
 
-
     elif drop_via:
+        if remote_link:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("Dropping all paths via specific transport instance on remote instances yet not implemented")
+            exit(255)
+
         try:
             dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
             if len(destination_hexhash) != dest_len:
@@ -168,17 +325,19 @@ def program_setup(configdir, table, rates, drop, destination_hexhash, verbosity,
             print(str(e))
             sys.exit(1)
 
-
-        reticulum = RNS.Reticulum(configdir = configdir, loglevel = 3+verbosity)
-
         if reticulum.drop_all_via(destination_hash):
             print("Dropped all paths via "+RNS.prettyhexrep(destination_hash))
         else:
             print("Unable to drop paths via "+RNS.prettyhexrep(destination_hash)+". Does the transport instance exist?")
             sys.exit(1)
 
-
     else:
+        if remote_link:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("Requesting paths on remote instances not implemented")
+            exit(255)
+
         try:
             dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
             if len(destination_hexhash) != dest_len:
@@ -191,9 +350,6 @@ def program_setup(configdir, table, rates, drop, destination_hexhash, verbosity,
             print(str(e))
             sys.exit(1)
             
-
-        reticulum = RNS.Reticulum(configdir = configdir, loglevel = 3+verbosity)
-
         if not RNS.Transport.has_path(destination_hash):
             RNS.Transport.request_path(destination_hash)
             print("Path to "+RNS.prettyhexrep(destination_hash)+" requested  ", end=" ")
@@ -255,6 +411,16 @@ def main():
             default=False
         )
 
+        parser.add_argument(
+            "-m",
+            "--max",
+            action="store",
+            metavar="hops",
+            type=int,
+            help="maximum hops to filter path table by",
+            default=None
+        )
+
         parser.add_argument(
             "-r",
             "--rates",
@@ -295,6 +461,41 @@ def main():
             default=RNS.Transport.PATH_REQUEST_TIMEOUT
         )
 
+        parser.add_argument(
+            "-R",
+            action="store",
+            metavar="hash",
+            help="transport identity hash of remote instance to manage",
+            default=None,
+            type=str
+        )
+
+        parser.add_argument(
+            "-i",
+            action="store",
+            metavar="path",
+            help="path to identity used for remote management",
+            default=None,
+            type=str
+        )
+
+        parser.add_argument(
+            "-W",
+            action="store",
+            metavar="seconds",
+            type=float,
+            help="timeout before giving up on remote queries",
+            default=RNS.Transport.PATH_REQUEST_TIMEOUT
+        )
+        
+        parser.add_argument(
+            "-j",
+            "--json",
+            action="store_true",
+            help="output in JSON format",
+            default=False
+        )
+
         parser.add_argument(
             "destination",
             nargs="?",
@@ -327,6 +528,11 @@ def main():
                 timeout = args.w,
                 drop_queues = args.drop_announces,
                 drop_via = args.drop_via,
+                max_hops = args.max,
+                remote=args.R,
+                management_identity=args.i,
+                remote_timeout=args.W,
+                json=args.json,
             )
             sys.exit(0)
 

RNS/Utilities/rnprobe.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -11,8 +11,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

RNS/Utilities/rnsd.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -11,8 +11,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -29,7 +37,7 @@ import time
 from RNS._version import __version__
 
 
-def program_setup(configdir, verbosity = 0, quietness = 0, service = False):
+def program_setup(configdir, verbosity = 0, quietness = 0, service = False, interactive=False):
     targetverbosity = verbosity-quietness
 
     if service:
@@ -42,10 +50,14 @@ def program_setup(configdir, verbosity = 0, quietness = 0, service = False):
     if reticulum.is_connected_to_shared_instance:
         RNS.log("Started rnsd version {version} connected to another shared local instance, this is probably NOT what you want!".format(version=__version__), RNS.LOG_WARNING)
     else:
+        # TODO: Rethink why this was added
+        # if RNS.Reticulum.get_instance().shared_instance_interface:
+        #     RNS.Reticulum.get_instance().shared_instance_interface.server.daemon_threads = True
         RNS.log("Started rnsd version {version}".format(version=__version__), RNS.LOG_NOTICE)
 
-    while True:
-        time.sleep(1)
+    if interactive: import code; code.interact(local=globals())
+    else:
+        while True: time.sleep(1)
 
 def main():
     try:
@@ -54,6 +66,7 @@ def main():
         parser.add_argument('-v', '--verbose', action='count', default=0)
         parser.add_argument('-q', '--quiet', action='count', default=0)
         parser.add_argument('-s', '--service', action='store_true', default=False, help="rnsd is running as a service and should log to file")
+        parser.add_argument('-i', '--interactive', action='store_true', default=False, help="drop into interactive shell after initialisation")
         parser.add_argument("--exampleconfig", action='store_true', default=False, help="print verbose configuration example to stdout and exit")
         parser.add_argument("--version", action="version", version="rnsd {version}".format(version=__version__))
         
@@ -68,7 +81,7 @@ def main():
         else:
             configarg = None
 
-        program_setup(configdir = configarg, verbosity=args.verbose, quietness=args.quiet, service=args.service)
+        program_setup(configdir = configarg, verbosity=args.verbose, quietness=args.quiet, service=args.service, interactive=args.interactive)
 
     except KeyboardInterrupt:
         print("")
@@ -104,12 +117,24 @@ share_instance = Yes
 
 # If you want to run multiple *different* shared instances
 # on the same system, you will need to specify different
-# shared instance ports for each. The defaults are given
-# below, and again, these options can be left out if you
-# don't need them.
+# instance names for each. On platforms supporting domain
+# sockets, this can be done with the instance_name option:
 
-shared_instance_port = 37428
-instance_control_port = 37429
+instance_name = default
+
+# Some platforms don't support domain sockets, and if that
+# is the case, you can isolate different instances by
+# specifying a unique set of ports for each:
+
+# shared_instance_port = 37428
+# instance_control_port = 37429
+
+
+# If you want to explicitly use TCP for shared instance
+# communication, instead of domain sockets, this is also
+# possible, by using the following option:
+
+# shared_instance_type = tcp
 
 
 # On systems where running instances may not have access
@@ -123,13 +148,25 @@ instance_control_port = 37429
 # rpc_key = e5c032d3ec4e64a6aca9927ba8ab73336780f6d71790
 
 
+# It is possible to allow remote management of Reticulum
+# systems using the various built-in utilities, such as
+# rnstatus and rnpath. You will need to specify one or
+# more Reticulum Identity hashes for authenticating the
+# queries from client programs. For this purpose, you can
+# use existing identity files, or generate new ones with
+# the rnid utility.
+
+# enable_remote_management = yes
+# remote_management_allowed = 9fb6d773498fb3feda407ed8ef2c3229, 2d882c5586e548d79b5af27bca1776dc
+
+
 # You can configure Reticulum to panic and forcibly close
 # if an unrecoverable interface error occurs, such as the
 # hardware device for an interface disappearing. This is
 # an optional directive, and can be left out for brevity.
 # This behaviour is disabled by default.
 
-panic_on_interface_error = No
+# panic_on_interface_error = No
 
 
 # When Transport is enabled, it is possible to allow the
@@ -140,7 +177,7 @@ panic_on_interface_error = No
 # Transport Instance, and printed to the log at startup.
 # Optional, and disabled by default.
 
-respond_to_probes = No
+# respond_to_probes = No
 
 
 [logging]
@@ -282,6 +319,23 @@ loglevel = 4
     # Serial port for the device
     port = /dev/ttyUSB0
 
+    # It is also possible to use BLE devices
+    # instead of wired serial ports. The
+    # target RNode must be paired with the
+    # host device before connecting. BLE
+    # devices can be connected by name,
+    # BLE MAC address or by any available.
+    
+    # Connect to specific device by name
+    # port = ble://RNode 3B87
+
+    # Or by BLE MAC address
+    # port = ble://F4:12:73:29:4E:89
+
+    # Or connect to the first available,
+    # paired device
+    # port = ble://
+
     # Set frequency to 867.2 MHz
     frequency = 867200000
 

RNS/Utilities/rnstatus.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -11,8 +11,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -23,6 +31,9 @@
 # SOFTWARE.
 
 import RNS
+import os
+import sys
+import time
 import argparse
 
 from RNS._version import __version__
@@ -46,14 +57,155 @@ def size_str(num, suffix='B'):
 
     return "%.2f%s%s" % (num, last_unit, suffix)
 
-def program_setup(configdir, dispall=False, verbosity=0, name_filter=None, json=False, astats=False, sorting=None, sort_reverse=False):
-    reticulum = RNS.Reticulum(configdir = configdir, loglevel = 3+verbosity)
+request_result = None
+request_concluded = False
+def get_remote_status(destination_hash, include_lstats, identity, no_output=False, timeout=RNS.Transport.PATH_REQUEST_TIMEOUT):
+    global request_result, request_concluded
+    link_count = None
+
+    if not RNS.Transport.has_path(destination_hash):
+        if not no_output:
+            print("Path to "+RNS.prettyhexrep(destination_hash)+" requested", end=" ")
+            sys.stdout.flush()
+        RNS.Transport.request_path(destination_hash)
+        pr_time = time.time()
+        while not RNS.Transport.has_path(destination_hash):
+            time.sleep(0.1)
+            if time.time() - pr_time > timeout:
+                if not no_output:
+                    print("\r                                                          \r", end="")
+                    print("Path request timed out")
+                    exit(12)
+
+    remote_identity = RNS.Identity.recall(destination_hash)
+
+    def remote_link_closed(link):
+        if link.teardown_reason == RNS.Link.TIMEOUT:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("The link timed out, exiting now")
+        elif link.teardown_reason == RNS.Link.DESTINATION_CLOSED:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("The link was closed by the server, exiting now")
+        else:
+            if not no_output:
+                print("\r                                                          \r", end="")
+                print("Link closed unexpectedly, exiting now")
+        exit(10)
+
+    def request_failed(request_receipt):
+        global request_result, request_concluded
+        if not no_output:
+            print("\r                                                          \r", end="")
+            print("The remote status request failed. Likely authentication failure.")
+        request_concluded = True
+
+    def got_response(request_receipt):
+        global request_result, request_concluded
+        response = request_receipt.response
+        if isinstance(response, list):
+            status = response[0]
+            if len(response) > 1:
+                link_count = response[1]
+            else:
+                link_count = None
+
+            request_result = (status, link_count)
+
+        request_concluded = True
+
+    def remote_link_established(link):
+        if not no_output:
+            print("\r                                                          \r", end="")
+            print("Sending request...", end=" ")
+            sys.stdout.flush()
+        link.identify(identity)
+        link.request("/status", data = [include_lstats], response_callback = got_response, failed_callback = request_failed)
+
+    if not no_output:
+        print("\r                                                          \r", end="")
+        print("Establishing link with remote transport instance...", end=" ")
+        sys.stdout.flush()
+
+    remote_destination = RNS.Destination(remote_identity, RNS.Destination.OUT, RNS.Destination.SINGLE, "rnstransport", "remote", "management")
+    link = RNS.Link(remote_destination)
+    link.set_link_established_callback(remote_link_established)
+    link.set_link_closed_callback(remote_link_closed)
+
+    while not request_concluded:
+        time.sleep(0.1)
+
+    if request_result != None:
+        print("\r                                                          \r", end="")
+
+    return request_result
+
+def program_setup(configdir, dispall=False, verbosity=0, name_filter=None, json=False, astats=False,
+                  lstats=False, sorting=None, sort_reverse=False, remote=None, management_identity=None,
+                  remote_timeout=RNS.Transport.PATH_REQUEST_TIMEOUT, must_exit=True, rns_instance=None, traffic_totals=False):
+    
+    if remote:
+        require_shared = False
+    else:
+        require_shared = True
 
-    stats = None
     try:
-        stats = reticulum.get_interface_stats()
+        if rns_instance:
+            reticulum = rns_instance
+            must_exit = False
+        else:
+            reticulum = RNS.Reticulum(configdir=configdir, loglevel=3+verbosity, require_shared_instance=require_shared)
+
     except Exception as e:
-        pass
+        print("No shared RNS instance available to get status from")
+        if must_exit:
+            exit(1)
+        else:
+            return
+
+    link_count = None
+    stats = None
+    if remote:
+        try:
+            dest_len = (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2
+            if len(remote) != dest_len:
+                raise ValueError("Destination length is invalid, must be {hex} hexadecimal characters ({byte} bytes).".format(hex=dest_len, byte=dest_len//2))
+            try:
+                identity_hash = bytes.fromhex(remote)
+                destination_hash = RNS.Destination.hash_from_name_and_identity("rnstransport.remote.management", identity_hash)
+            except Exception as e:
+                raise ValueError("Invalid destination entered. Check your input.")
+
+            identity = RNS.Identity.from_file(os.path.expanduser(management_identity))
+            if identity == None:
+                raise ValueError("Could not load management identity from "+str(management_identity))
+
+            try:
+                remote_status = get_remote_status(destination_hash, lstats, identity, no_output=json, timeout=remote_timeout)
+                if remote_status != None:
+                    stats, link_count = remote_status
+            except Exception as e:
+                raise e
+                    
+        except Exception as e:
+            print(str(e))
+            if must_exit:
+                exit(20)
+            else:
+                return
+
+    else:
+        if lstats:
+            try:
+                link_count = reticulum.get_link_count()
+            except Exception as e:
+                pass
+
+        try:
+            stats = reticulum.get_interface_stats()
+        except Exception as e:
+            pass
 
     if stats != None:
         if json:
@@ -62,7 +214,7 @@ def program_setup(configdir, dispall=False, verbosity=0, name_filter=None, json=
                 if isinstance(stats[s], bytes):
                     stats[s] = RNS.hexrep(stats[s], delimit=False)
 
-                if isinstance(stats[s], dict):
+                if isinstance(stats[s], dict) or isinstance(stats[s], list):
                     for i in stats[s]:
                         if isinstance(i, dict):
                             for k in i:
@@ -70,7 +222,10 @@ def program_setup(configdir, dispall=False, verbosity=0, name_filter=None, json=
                                     i[k] = RNS.hexrep(i[k], delimit=False)
 
             print(json.dumps(stats))
-            exit()
+            if must_exit:
+                exit()
+            else:
+                return
 
         interfaces = stats["interfaces"]
         if sorting != None and isinstance(sorting, str):
@@ -81,6 +236,10 @@ def program_setup(configdir, dispall=False, verbosity=0, name_filter=None, json=
                 interfaces.sort(key=lambda i: i["rxb"], reverse=not sort_reverse)
             if sorting == "tx":
                 interfaces.sort(key=lambda i: i["txb"], reverse=not sort_reverse)
+            if sorting == "rxs":
+                interfaces.sort(key=lambda i: i["rxs"], reverse=not sort_reverse)
+            if sorting == "txs":
+                interfaces.sort(key=lambda i: i["txs"], reverse=not sort_reverse)
             if sorting == "traffic":
                 interfaces.sort(key=lambda i: i["rxb"]+i["txb"], reverse=not sort_reverse)
             if sorting == "announces" or sorting == "announce":
@@ -99,6 +258,8 @@ def program_setup(configdir, dispall=False, verbosity=0, name_filter=None, json=
             if dispall or not (
                 name.startswith("LocalInterface[") or
                 name.startswith("TCPInterface[Client") or
+                name.startswith("BackboneInterface[Client on") or
+                name.startswith("AutoInterfacePeer[") or
                 name.startswith("I2PInterfacePeer[Connected peer") or
                 (name.startswith("I2PInterface[") and ("i2p_connectable" in ifstat and ifstat["i2p_connectable"] == False))
                 ):
@@ -169,12 +330,26 @@ def program_setup(configdir, dispall=False, verbosity=0, name_filter=None, json=
                         if "bitrate" in ifstat and ifstat["bitrate"] != None:
                             print("    Rate      : {ss}".format(ss=speed_str(ifstat["bitrate"])))
 
+                        if "noise_floor" in ifstat:
+                            if ifstat["noise_floor"] != None:
+                                print("    Noise Fl. : {nfl} dBm".format(nfl=str(ifstat["noise_floor"])))
+                            else:
+                                print("    Noise Fl. : Unknown")
+
+                        if "battery_percent" in ifstat and ifstat["battery_percent"] != None:
+                            try:
+                                bpi = int(ifstat["battery_percent"])
+                                bss = ifstat["battery_state"]
+                                print(f"    Battery   : {bpi}% ({bss})")
+                            except:
+                                pass
+
                         if "airtime_short" in ifstat and "airtime_long" in ifstat:
                             print("    Airtime   : {ats}% (15s), {atl}% (1h)".format(ats=str(ifstat["airtime_short"]),atl=str(ifstat["airtime_long"])))
                         
                         if "channel_load_short" in ifstat and "channel_load_long" in ifstat:
-                            print("    Ch.Load   : {ats}% (15s), {atl}% (1h)".format(ats=str(ifstat["channel_load_short"]),atl=str(ifstat["channel_load_long"])))
-                        
+                            print("    Ch. Load  : {ats}% (15s), {atl}% (1h)".format(ats=str(ifstat["channel_load_short"]),atl=str(ifstat["channel_load_long"])))
+
                         if "peers" in ifstat and ifstat["peers"] != None:
                             print("    Peers     : {np} reachable".format(np=ifstat["peers"]))
 
@@ -206,20 +381,66 @@ def program_setup(configdir, dispall=False, verbosity=0, name_filter=None, json=
                             print("    Announces : {iaf}↑".format(iaf=RNS.prettyfrequency(ifstat["outgoing_announce_frequency"])))
                             print("                {iaf}↓".format(iaf=RNS.prettyfrequency(ifstat["incoming_announce_frequency"])))
 
-                        print("    Traffic   : {txb}↑\n                {rxb}↓".format(rxb=size_str(ifstat["rxb"]), txb=size_str(ifstat["txb"])))
+                        rxb_str = "↓"+RNS.prettysize(ifstat["rxb"])
+                        txb_str = "↑"+RNS.prettysize(ifstat["txb"])
+                        strdiff = len(rxb_str)-len(txb_str)
+                        if strdiff > 0:
+                            txb_str += " "*strdiff
+                        elif strdiff < 0:
+                            rxb_str += " "*-strdiff
+
+                        rxstat = rxb_str
+                        txstat = txb_str
+                        if "rxs" in ifstat and "txs" in ifstat:
+                            rxstat += "  "+RNS.prettyspeed(ifstat["rxs"])
+                            txstat += "  "+RNS.prettyspeed(ifstat["txs"])
+                        
+                        print(f"    Traffic   : {txstat}\n                {rxstat}")
+
+        lstr = ""
+        if link_count != None and lstats:
+            ms = "y" if link_count == 1 else "ies"
+            if "transport_id" in stats and stats["transport_id"] != None:
+                lstr = f", {link_count} entr{ms} in link table"
+            else:
+                lstr = f" {link_count} entr{ms} in link table"
+
+        if traffic_totals:
+            rxb_str = "↓"+RNS.prettysize(stats["rxb"])
+            txb_str = "↑"+RNS.prettysize(stats["txb"])
+            strdiff = len(rxb_str)-len(txb_str)
+            if strdiff > 0:
+                txb_str += " "*strdiff
+            elif strdiff < 0:
+                rxb_str += " "*-strdiff
+
+            rxstat  = rxb_str+"  "+RNS.prettyspeed(stats["rxs"])
+            txstat  = txb_str+"  "+RNS.prettyspeed(stats["txs"])
+            print(f"\n Totals       : {txstat}\n                {rxstat}")
 
         if "transport_id" in stats and stats["transport_id"] != None:
             print("\n Transport Instance "+RNS.prettyhexrep(stats["transport_id"])+" running")
             if "probe_responder" in stats and stats["probe_responder"] != None:
                 print(" Probe responder at "+RNS.prettyhexrep(stats["probe_responder"])+ " active")
-            print(" Uptime is "+RNS.prettytime(stats["transport_uptime"]))
+            if "transport_uptime" in stats and stats["transport_uptime"] != None:
+                print(" Uptime is "+RNS.prettytime(stats["transport_uptime"])+lstr)
+        else:
+            if lstr != "":
+                print(f"\n{lstr}")
 
         print("")
                 
     else:
-        print("Could not get RNS status")
+        if not remote:
+            print("Could not get RNS status")
+        else:
+            print("Could not get RNS status from remote transport instance "+RNS.prettyhexrep(identity_hash))
+        if must_exit:
+            exit(2)
+        else:
+            return
 
-def main():
+def main(must_exit=True, rns_instance=None):
     try:
         parser = argparse.ArgumentParser(description="Reticulum Network Stack Status")
         parser.add_argument("--config", action="store", default=None, help="path to alternative Reticulum config directory", type=str)
@@ -241,11 +462,27 @@ def main():
             default=False
         )
         
+        parser.add_argument(
+            "-l",
+            "--link-stats",
+            action="store_true",
+            help="show link stats",
+            default=False,
+        )
+        
+        parser.add_argument(
+            "-t",
+            "--totals",
+            action="store_true",
+            help="display traffic totals",
+            default=False,
+        )
+        
         parser.add_argument(
             "-s",
             "--sort",
             action="store",
-            help="sort interfaces by [rate, traffic, rx, tx, announces, arx, atx, held]",
+            help="sort interfaces by [rate, traffic, rx, tx, rxs, txs, announces, arx, atx, held]",
             default=None,
             type=str
         )
@@ -266,6 +503,33 @@ def main():
             default=False
         )
 
+        parser.add_argument(
+            "-R",
+            action="store",
+            metavar="hash",
+            help="transport identity hash of remote instance to get status from",
+            default=None,
+            type=str
+        )
+
+        parser.add_argument(
+            "-i",
+            action="store",
+            metavar="path",
+            help="path to identity used for remote management",
+            default=None,
+            type=str
+        )
+
+        parser.add_argument(
+            "-w",
+            action="store",
+            metavar="seconds",
+            type=float,
+            help="timeout before giving up on remote queries",
+            default=RNS.Transport.PATH_REQUEST_TIMEOUT
+        )
+
         parser.add_argument('-v', '--verbose', action='count', default=0)
 
         parser.add_argument("filter", nargs="?", default=None, help="only display interfaces with names including filter", type=str)
@@ -284,13 +548,23 @@ def main():
             name_filter=args.filter,
             json=args.json,
             astats=args.announce_stats,
+            lstats=args.link_stats,
             sorting=args.sort,
             sort_reverse=args.reverse,
+            remote=args.R,
+            management_identity=args.i,
+            remote_timeout=args.w,
+            must_exit=must_exit,
+            rns_instance=rns_instance,
+            traffic_totals=args.totals,
         )
 
     except KeyboardInterrupt:
         print("")
-        exit()
+        if must_exit:
+            exit()
+        else:
+            return
 
 def speed_str(num, suffix='bps'):
     units = ['','k','M','G','T','P','E','Z']

RNS/Utilities/rnx.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -11,8 +11,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -28,8 +36,8 @@ import argparse
 import shlex
 import time
 import sys
-import tty
 import os
+#import tty
 
 from RNS._version import __version__
 

RNS/__init__.py

@@ -1,6 +1,6 @@
-# MIT License
+# Reticulum License
 #
-# Copyright (c) 2016-2023 Mark Qvist / unsigned.io and contributors
+# Copyright (c) 2016-2025 Mark Qvist
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -9,8 +9,16 @@
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@@ -24,6 +32,7 @@ import os
 import sys
 import glob
 import time
+import datetime
 import random
 import threading
 
@@ -43,9 +52,16 @@ from .Resource import Resource, ResourceAdvertisement
 from .Cryptography import HKDF
 from .Cryptography import Hashes
 
-modules = glob.glob(os.path.dirname(__file__)+"/*.py")
-__all__ = [ os.path.basename(f)[:-3] for f in modules if not f.endswith('__init__.py')]
+py_modules  = glob.glob(os.path.dirname(__file__)+"/*.py")
+pyc_modules = glob.glob(os.path.dirname(__file__)+"/*.pyc")
+modules     = py_modules+pyc_modules
+__all__ = list(set([os.path.basename(f).replace(".pyc", "").replace(".py", "") for f in modules if not (f.endswith("__init__.py") or f.endswith("__init__.pyc"))]))
 
+import importlib.util
+if importlib.util.find_spec("cython"): import cython; compiled = cython.compiled
+else: compiled = False
+
+LOG_NONE     = -1
 LOG_CRITICAL = 0
 LOG_ERROR    = 1
 LOG_WARNING  = 2
@@ -57,13 +73,16 @@ LOG_EXTREME  = 7
 
 LOG_STDOUT   = 0x91
 LOG_FILE     = 0x92
+LOG_CALLBACK = 0x93
 
 LOG_MAXSIZE  = 5*1024*1024
 
 loglevel        = LOG_NOTICE
 logfile         = None
 logdest         = LOG_STDOUT
+logcall         = None
 logtimefmt      = "%Y-%m-%d %H:%M:%S"
+logtimefmt_p    = "%H:%M:%S.%f"
 compact_log_fmt = False
 
 instance_random = random.Random()
@@ -75,21 +94,21 @@ logging_lock = threading.Lock()
 
 def loglevelname(level):
     if (level == LOG_CRITICAL):
-        return "Critical"
+        return "[Critical]"
     if (level == LOG_ERROR):
-        return "Error"
+        return "[Error]   "
     if (level == LOG_WARNING):
-        return "Warning"
+        return "[Warning] "
     if (level == LOG_NOTICE):
-        return "Notice"
+        return "[Notice]  "
     if (level == LOG_INFO):
-        return "Info"
+        return "[Info]    "
     if (level == LOG_VERBOSE):
-        return "Verbose"
+        return "[Verbose] "
     if (level == LOG_DEBUG):
-        return "Debug"
+        return "[Debug]   "
     if (level == LOG_EXTREME):
-        return "Extra"
+        return "[Extra]   "
     
     return "Unknown"
 
@@ -104,40 +123,53 @@ def timestamp_str(time_s):
     timestamp = time.localtime(time_s)
     return time.strftime(logtimefmt, timestamp)
 
-def log(msg, level=3, _override_destination = False):
+def precise_timestamp_str(time_s):
+    return datetime.datetime.now().strftime(logtimefmt_p)[:-3]
+
+def log(msg, level=3, _override_destination = False, pt=False):
+    if loglevel == LOG_NONE: return
     global _always_override_destination, compact_log_fmt
     msg = str(msg)
     if loglevel >= level:
-        if not compact_log_fmt:
-            logstring = "["+timestamp_str(time.time())+"] ["+loglevelname(level)+"] "+msg
+        if pt:
+            logstring = "["+precise_timestamp_str(time.time())+"] "+loglevelname(level)+" "+msg
         else:
-            logstring = "["+timestamp_str(time.time())+"] "+msg
+            if not compact_log_fmt:
+                logstring = "["+timestamp_str(time.time())+"] "+loglevelname(level)+" "+msg
+            else:
+                logstring = "["+timestamp_str(time.time())+"] "+msg
 
-        logging_lock.acquire()
+        with logging_lock:
+            if (logdest == LOG_STDOUT or _always_override_destination or _override_destination):
+                if not threading.main_thread().is_alive(): return
+                else: print(logstring)
 
-        if (logdest == LOG_STDOUT or _always_override_destination or _override_destination):
-            print(logstring)
-            logging_lock.release()
+            elif (logdest == LOG_FILE and logfile != None):
+                try:
+                    file = open(logfile, "a")
+                    file.write(logstring+"\n")
+                    file.close()
+                    
+                    if os.path.getsize(logfile) > LOG_MAXSIZE:
+                        prevfile = logfile+".1"
+                        if os.path.isfile(prevfile):
+                            os.unlink(prevfile)
+                        os.rename(logfile, prevfile)
 
-        elif (logdest == LOG_FILE and logfile != None):
-            try:
-                file = open(logfile, "a")
-                file.write(logstring+"\n")
-                file.close()
-                
-                if os.path.getsize(logfile) > LOG_MAXSIZE:
-                    prevfile = logfile+".1"
-                    if os.path.isfile(prevfile):
-                        os.unlink(prevfile)
-                    os.rename(logfile, prevfile)
+                except Exception as e:
+                    _always_override_destination = True
+                    log("Exception occurred while writing log message to log file: "+str(e), LOG_CRITICAL)
+                    log("Dumping future log events to console!", LOG_CRITICAL)
+                    log(msg, level)
 
-                logging_lock.release()
-            except Exception as e:
-                logging_lock.release()
-                _always_override_destination = True
-                log("Exception occurred while writing log message to log file: "+str(e), LOG_CRITICAL)
-                log("Dumping future log events to console!", LOG_CRITICAL)
-                log(msg, level)
+            elif logdest == LOG_CALLBACK:
+                try:
+                    logcall(logstring)
+                except Exception as e:
+                    _always_override_destination = True
+                    log("Exception occurred while calling external log handler: "+str(e), LOG_CRITICAL)
+                    log("Dumping future log events to console!", LOG_CRITICAL)
+                    log(msg, level)
                 
 
 def rand():
@@ -218,6 +250,11 @@ def prettydistance(m, suffix="m"):
     return "%.2f %s%s" % (num, last_unit, suffix)
 
 def prettytime(time, verbose=False, compact=False):
+    neg = False
+    if time < 0:
+        time = abs(time)
+        neg = True
+
     days = int(time // (24 * 3600))
     time = time % (24 * 3600)
     hours = int(time // 3600)
@@ -268,7 +305,64 @@ def prettytime(time, verbose=False, compact=False):
     if tstr == "":
         return "0s"
     else:
-        return tstr
+        if not neg:
+            return tstr
+        else:
+            return f"-{tstr}"
+
+def prettyshorttime(time, verbose=False, compact=False):
+    neg = False
+    time = time*1e6
+    if time < 0:
+        time = abs(time)
+        neg = True
+    
+    seconds = int(time // 1e6); time %= 1e6
+    milliseconds = int(time // 1e3); time %= 1e3
+
+    if compact:
+        microseconds = int(time)
+    else:
+        microseconds = round(time, 2)
+    
+    ss = "" if seconds == 1 else "s"
+    sms = "" if milliseconds == 1 else "s"
+    sus = "" if microseconds == 1 else "s"
+
+    displayed = 0
+    components = []
+    if seconds > 0 and ((not compact) or displayed < 2):
+        components.append(str(seconds)+" second"+ss if verbose else str(seconds)+"s")
+        displayed += 1
+
+    if milliseconds > 0 and ((not compact) or displayed < 2):
+        components.append(str(milliseconds)+" millisecond"+sms if verbose else str(milliseconds)+"ms")
+        displayed += 1
+
+    if microseconds > 0 and ((not compact) or displayed < 2):
+        components.append(str(microseconds)+" microsecond"+sus if verbose else str(microseconds)+"µs")
+        displayed += 1
+
+    i = 0
+    tstr = ""
+    for c in components:
+        i += 1
+        if i == 1:
+            pass
+        elif i < len(components):
+            tstr += ", "
+        elif i == len(components):
+            tstr += " and "
+
+        tstr += c
+
+    if tstr == "":
+        return "0us"
+    else:
+        if not neg:
+            return tstr
+        else:
+            return f"-{tstr}"
 
 def phyparams():
     print("Required Physical Layer MTU : "+str(Reticulum.MTU)+" bytes")
@@ -282,6 +376,169 @@ def phyparams():
 def panic():
     os._exit(255)
 
-def exit():
-    print("")
-    sys.exit(0)
+exit_called = False
+def exit(code=0):
+    global exit_called
+    if not exit_called:
+        exit_called = True
+        Reticulum.exit_handler()
+        os._exit(code)
+
+class Profiler:
+    _ran = False
+    profilers = {}
+    tags = {}
+
+    @staticmethod
+    def get_profiler(tag=None, super_tag=None):
+        if tag in Profiler.profilers:
+            return Profiler.profilers[tag]
+        else:
+            profiler = Profiler(tag, super_tag)
+            Profiler.profilers[tag] = profiler
+            return profiler
+
+    def __init__(self, tag=None, super_tag=None):
+        self.paused = False
+        self.pause_time = 0
+        self.pause_started = None
+        self.tag = tag
+        self.super_tag = super_tag
+        if self.super_tag in Profiler.profilers:
+            self.super_profiler = Profiler.profilers[self.super_tag]
+            self.pause_super = self.super_profiler.pause
+            self.resume_super = self.super_profiler.resume
+        else:
+            def noop(self=None):
+                pass
+            self.super_profiler = None
+            self.pause_super = noop
+            self.resume_super = noop
+
+    def __enter__(self):
+        self.pause_super()
+        tag = self.tag
+        super_tag = self.super_tag
+        thread_ident = threading.get_ident()
+        if not tag in Profiler.tags:
+            Profiler.tags[tag] = {"threads": {}, "super": super_tag}
+        if not thread_ident in Profiler.tags[tag]["threads"]:
+            Profiler.tags[tag]["threads"][thread_ident] = {"current_start": None, "captures": []}
+
+        Profiler.tags[tag]["threads"][thread_ident]["current_start"] = time.perf_counter()
+        self.resume_super()
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        self.pause_super()
+        tag = self.tag
+        super_tag = self.super_tag
+        end = time.perf_counter() - self.pause_time
+        self.pause_time = 0
+        thread_ident = threading.get_ident()
+        if tag in Profiler.tags and thread_ident in Profiler.tags[tag]["threads"]:
+            if Profiler.tags[tag]["threads"][thread_ident]["current_start"] != None:
+                begin = Profiler.tags[tag]["threads"][thread_ident]["current_start"]
+                Profiler.tags[tag]["threads"][thread_ident]["current_start"] = None
+                Profiler.tags[tag]["threads"][thread_ident]["captures"].append(end-begin)
+                if not Profiler._ran:
+                    Profiler._ran = True
+        self.resume_super()
+
+    def pause(self, pause_started=None):
+        if not self.paused:
+            self.paused = True
+            self.pause_started = pause_started or time.perf_counter()
+            self.pause_super(self.pause_started)
+
+    def resume(self):
+        if self.paused:
+            self.pause_time += time.perf_counter() - self.pause_started
+            self.paused = False
+            self.resume_super()
+
+    @staticmethod
+    def ran():
+        return Profiler._ran
+
+    @staticmethod
+    def results():
+        from statistics import mean, median, stdev
+        results = {}
+        
+        for tag in Profiler.tags:
+            tag_captures = []
+            tag_entry = Profiler.tags[tag]
+            
+            for thread_ident in tag_entry["threads"]:
+                thread_entry = tag_entry["threads"][thread_ident]
+                thread_captures = thread_entry["captures"]
+                sample_count = len(thread_captures)
+                
+                if sample_count > 1:
+                    thread_results = {
+                        "count": sample_count,
+                        "mean": mean(thread_captures),
+                        "median": median(thread_captures),
+                        "stdev": stdev(thread_captures)
+                    }
+                elif sample_count == 1:
+                    thread_results = {
+                        "count": sample_count,
+                        "mean": mean(thread_captures),
+                        "median": median(thread_captures),
+                        "stdev": None
+                    }
+
+                tag_captures.extend(thread_captures)
+
+            sample_count = len(tag_captures)
+            if sample_count > 1:
+                tag_results = {
+                    "name": tag,
+                    "super": tag_entry["super"],
+                    "count": len(tag_captures),
+                    "mean": mean(tag_captures),
+                    "median": median(tag_captures),
+                    "stdev": stdev(tag_captures)
+                }
+            elif sample_count == 1:
+                tag_results = {
+                    "name": tag,
+                    "super": tag_entry["super"],
+                    "count": len(tag_captures),
+                    "mean": mean(tag_captures),
+                    "median": median(tag_captures),
+                    "stdev": None
+                }
+
+            results[tag] = tag_results
+
+        def print_results_recursive(tag, results, level=0):
+            print_tag_results(tag, level+1)
+
+            for tag_name in results:
+                sub_tag = results[tag_name]
+                if sub_tag["super"] == tag["name"]:
+                    print_results_recursive(sub_tag, results, level=level+1)
+
+
+        def print_tag_results(tag, level):
+            ind = "  "*level
+            name = tag["name"]; count = tag["count"]
+            mean = tag["mean"]; median = tag["median"]; stdev = tag["stdev"]
+            print(    f"{ind}{name}")
+            print(    f"{ind}  Samples  : {count}")
+            if stdev != None:
+                print(f"{ind}  Mean     : {prettyshorttime(mean)}")
+                print(f"{ind}  Median   : {prettyshorttime(median)}")
+                print(f"{ind}  St.dev.  : {prettyshorttime(stdev)}")
+            print(    f"{ind}  Total    : {prettyshorttime(mean*count)}")
+            print("")
+
+        print("\nProfiler results:\n")
+        for tag_name in results:
+            tag = results[tag_name]
+            if tag["super"] == None:
+                print_results_recursive(tag, results)
+
+profile = Profiler.get_profiler

RNS/_version.py

@@ -1 +1 @@
-__version__ = "0.7.2"
+__version__ = "0.9.6"

RNS/vendor/__init__.py

@@ -1,5 +1,7 @@
 import os
 import glob
 
-modules = glob.glob(os.path.dirname(__file__)+"/*.py")
-__all__ = [ os.path.basename(f)[:-3] for f in modules if not f.endswith('__init__.py')]
+py_modules  = glob.glob(os.path.dirname(__file__)+"/*.py")
+pyc_modules = glob.glob(os.path.dirname(__file__)+"/*.pyc")
+modules     = py_modules+pyc_modules
+__all__ = list(set([os.path.basename(f).replace(".pyc", "").replace(".py", "") for f in modules if not (f.endswith("__init__.py") or f.endswith("__init__.pyc"))]))

RNS/vendor/configobj.py

@@ -19,8 +19,7 @@ import sys
 
 from codecs import BOM_UTF8, BOM_UTF16, BOM_UTF16_BE, BOM_UTF16_LE
 
-import RNS.vendor.six as six
-__version__ = '5.0.6'
+__version__ = '5.0.9'
 
 # imported lazily to avoid startup performance hit if it isn't used
 compiler = None
@@ -121,10 +120,6 @@ OPTION_DEFAULTS = {
     'write_empty_values': False,
 }
 
-# this could be replaced if six is used for compatibility, or there are no
-# more assertions about items being a string
-
-
 def getObj(s):
     global compiler
     if compiler is None:
@@ -553,11 +548,11 @@ class Section(dict):
         """Fetch the item and do string interpolation."""
         val = dict.__getitem__(self, key)
         if self.main.interpolation: 
-            if isinstance(val, six.string_types):
+            if isinstance(val, str):
                 return self._interpolate(key, val)
             if isinstance(val, list):
                 def _check(entry):
-                    if isinstance(entry, six.string_types):
+                    if isinstance(entry, str):
                         return self._interpolate(key, entry)
                     return entry
                 new = [_check(entry) for entry in val]
@@ -580,7 +575,7 @@ class Section(dict):
         ``unrepr`` must be set when setting a value to a dictionary, without
         creating a new sub-section.
         """
-        if not isinstance(key, six.string_types):
+        if not isinstance(key, str):
             raise ValueError('The key "%s" is not a string.' % key)
         
         # add the comment
@@ -614,11 +609,11 @@ class Section(dict):
             if key not in self:
                 self.scalars.append(key)
             if not self.main.stringify:
-                if isinstance(value, six.string_types):
+                if isinstance(value, str):
                     pass
                 elif isinstance(value, (list, tuple)):
                     for entry in value:
-                        if not isinstance(entry, six.string_types):
+                        if not isinstance(entry, str):
                             raise TypeError('Value is not a string "%s".' % entry)
                 else:
                     raise TypeError('Value is not a string "%s".' % value)
@@ -959,7 +954,7 @@ class Section(dict):
             return False
         else:
             try:
-                if not isinstance(val, six.string_types):
+                if not isinstance(val, str):
                     # TODO: Why do we raise a KeyError here?
                     raise KeyError()
                 else:
@@ -1230,7 +1225,7 @@ class ConfigObj(Section):
         
         
     def _load(self, infile, configspec):
-        if isinstance(infile, six.string_types):
+        if isinstance(infile, str):
             self.filename = infile
             if os.path.isfile(infile):
                 with open(infile, 'rb') as h:
@@ -1298,7 +1293,7 @@ class ConfigObj(Section):
                         break
                 break
 
-        assert all(isinstance(line, six.string_types) for line in content), repr(content)
+        assert all(isinstance(line, str) for line in content), repr(content)
         content = [line.rstrip('\r\n') for line in content]
             
         self._parse(content)
@@ -1403,7 +1398,7 @@ class ConfigObj(Section):
         else:
             line = infile
 
-        if isinstance(line, six.text_type):
+        if isinstance(line, str):
             # it's already decoded and there's no need to do anything
             # else, just use the _decode utility method to handle
             # listifying appropriately
@@ -1448,7 +1443,7 @@ class ConfigObj(Section):
         
         # No encoding specified - so we need to check for UTF8/UTF16
         for BOM, (encoding, final_encoding) in list(BOMS.items()):
-            if not isinstance(line, six.binary_type) or not line.startswith(BOM):
+            if not isinstance(line, bytes) or not line.startswith(BOM):
                 # didn't specify a BOM, or it's not a bytestring
                 continue
             else:
@@ -1464,9 +1459,9 @@ class ConfigObj(Section):
                     else:
                         infile = newline
                     # UTF-8
-                    if isinstance(infile, six.text_type):
+                    if isinstance(infile, str):
                         return infile.splitlines(True)
-                    elif isinstance(infile, six.binary_type):
+                    elif isinstance(infile, bytes):
                         return infile.decode('utf-8').splitlines(True)
                     else:
                         return self._decode(infile, 'utf-8')
@@ -1474,12 +1469,8 @@ class ConfigObj(Section):
                 return self._decode(infile, encoding)
             
 
-        if six.PY2 and isinstance(line, str):
-            # don't actually do any decoding, since we're on python 2 and
-            # returning a bytestring is fine
-            return self._decode(infile, None)
         # No BOM discovered and no encoding specified, default to UTF-8
-        if isinstance(infile, six.binary_type):
+        if isinstance(infile, bytes):
             return infile.decode('utf-8').splitlines(True)
         else:
             return self._decode(infile, 'utf-8')
@@ -1487,7 +1478,7 @@ class ConfigObj(Section):
 
     def _a_to_u(self, aString):
         """Decode ASCII strings to unicode if a self.encoding is specified."""
-        if isinstance(aString, six.binary_type) and self.encoding:
+        if isinstance(aString, bytes) and self.encoding:
             return aString.decode(self.encoding)
         else:
             return aString
@@ -1499,9 +1490,9 @@ class ConfigObj(Section):
         
         if is a string, it also needs converting to a list.
         """
-        if isinstance(infile, six.string_types):
+        if isinstance(infile, str):
             return infile.splitlines(True)
-        if isinstance(infile, six.binary_type):
+        if isinstance(infile, bytes):
             # NOTE: Could raise a ``UnicodeDecodeError``
             if encoding:
                 return infile.decode(encoding).splitlines(True)
@@ -1510,7 +1501,7 @@ class ConfigObj(Section):
 
         if encoding:
             for i, line in enumerate(infile):
-                if isinstance(line, six.binary_type):
+                if isinstance(line, bytes):
                     # NOTE: The isinstance test here handles mixed lists of unicode/string
                     # NOTE: But the decode will break on any non-string values
                     # NOTE: Or could raise a ``UnicodeDecodeError``
@@ -1520,7 +1511,7 @@ class ConfigObj(Section):
 
     def _decode_element(self, line):
         """Decode element to unicode if necessary."""
-        if isinstance(line, six.binary_type) and self.default_encoding:
+        if isinstance(line, bytes) and self.default_encoding:
             return line.decode(self.default_encoding)
         else:
             return line
@@ -1532,7 +1523,7 @@ class ConfigObj(Section):
         Used by ``stringify`` within validate, to turn non-string values
         into strings.
         """
-        if not isinstance(value, six.string_types):
+        if not isinstance(value, str):
             # intentially 'str' because it's just whatever the "normal"
             # string type is for the python version we're dealing with
             return str(value)
@@ -1786,7 +1777,7 @@ class ConfigObj(Section):
                 return self._quote(value[0], multiline=False) + ','
             return ', '.join([self._quote(val, multiline=False)
                 for val in value])
-        if not isinstance(value, six.string_types):
+        if not isinstance(value, str):
             if self.stringify:
                 # intentially 'str' because it's just whatever the "normal"
                 # string type is for the python version we're dealing with
@@ -2111,7 +2102,7 @@ class ConfigObj(Section):
         if not output.endswith(newline):
             output += newline
 
-        if isinstance(output, six.binary_type):
+        if isinstance(output, bytes):
             output_bytes = output
         else:
             output_bytes = output.encode(self.encoding or
@@ -2170,7 +2161,7 @@ class ConfigObj(Section):
             if preserve_errors:
                 # We do this once to remove a top level dependency on the validate module
                 # Which makes importing configobj faster
-                from validate import VdtMissingValue
+                from configobj.validate import VdtMissingValue
                 self._vdtMissingValue = VdtMissingValue
                 
             section = self
@@ -2353,7 +2344,7 @@ class ConfigObj(Section):
         This method raises a ``ReloadError`` if the ConfigObj doesn't have
         a filename attribute pointing to a file.
         """
-        if not isinstance(self.filename, six.string_types):
+        if not isinstance(self.filename, str):
             raise ReloadError()
 
         filename = self.filename
@@ -2480,4 +2471,4 @@ def get_extra_values(conf, _prepend=()):
     return out
 
 
-"""*A programming language is a medium of expression.* - Paul Graham"""
+"""*A programming language is a medium of expression.* - Paul Graham"""

RNS/vendor/ifaddr/__init__.py

@@ -1,33 +0,0 @@
-# Copyright (c) 2014 Stefan C. Mueller
-
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-
-
-import os
-
-from RNS.vendor.ifaddr._shared import Adapter, IP
-
-if os.name == "nt":
-    from RNS.vendor.ifaddr._win32 import get_adapters
-elif os.name == "posix":
-    from RNS.vendor.ifaddr._posix import get_adapters
-else:
-    raise RuntimeError("Unsupported Operating System: %s" % os.name)
-
-__all__ = ['Adapter', 'IP', 'get_adapters']

RNS/vendor/ifaddr/_posix.py

@@ -1,93 +0,0 @@
-# Copyright (c) 2014 Stefan C. Mueller
-
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-
-
-import os
-import ctypes.util
-import ipaddress
-import collections
-import socket
-
-from typing import Iterable, Optional
-
-import RNS.vendor.ifaddr._shared as shared
-
-class ifaddrs(ctypes.Structure):
-    pass
-
-
-ifaddrs._fields_ = [
-    ('ifa_next', ctypes.POINTER(ifaddrs)),
-    ('ifa_name', ctypes.c_char_p),
-    ('ifa_flags', ctypes.c_uint),
-    ('ifa_addr', ctypes.POINTER(shared.sockaddr)),
-    ('ifa_netmask', ctypes.POINTER(shared.sockaddr)),
-]
-
-libc = ctypes.CDLL(ctypes.util.find_library("socket" if os.uname()[0] == "SunOS" else "c"), use_errno=True)  # type: ignore
-
-
-def get_adapters(include_unconfigured: bool = False) -> Iterable[shared.Adapter]:
-
-    addr0 = addr = ctypes.POINTER(ifaddrs)()
-    retval = libc.getifaddrs(ctypes.byref(addr))
-    if retval != 0:
-        eno = ctypes.get_errno()
-        raise OSError(eno, os.strerror(eno))
-
-    ips = collections.OrderedDict()
-
-    def add_ip(adapter_name: str, ip: Optional[shared.IP]) -> None:
-        if adapter_name not in ips:
-            index = None  # type: Optional[int]
-            try:
-                # Mypy errors on this when the Windows CI runs:
-                #     error: Module has no attribute "if_nametoindex"
-                index = socket.if_nametoindex(adapter_name)  # type: ignore
-            except (OSError, AttributeError):
-                pass
-            ips[adapter_name] = shared.Adapter(adapter_name, adapter_name, [], index=index)
-        if ip is not None:
-            ips[adapter_name].ips.append(ip)
-
-    while addr:
-        name = addr[0].ifa_name.decode(encoding='UTF-8')
-        ip_addr = shared.sockaddr_to_ip(addr[0].ifa_addr)
-        if ip_addr:
-            if addr[0].ifa_netmask and not addr[0].ifa_netmask[0].sa_familiy:
-                addr[0].ifa_netmask[0].sa_familiy = addr[0].ifa_addr[0].sa_familiy
-            netmask = shared.sockaddr_to_ip(addr[0].ifa_netmask)
-            if isinstance(netmask, tuple):
-                netmaskStr = str(netmask[0])
-                prefixlen = shared.ipv6_prefixlength(ipaddress.IPv6Address(netmaskStr))
-            else:
-                assert netmask is not None, f'sockaddr_to_ip({addr[0].ifa_netmask}) returned None'
-                netmaskStr = str('0.0.0.0/' + netmask)
-                prefixlen = ipaddress.IPv4Network(netmaskStr).prefixlen
-            ip = shared.IP(ip_addr, prefixlen, name)
-            add_ip(name, ip)
-        else:
-            if include_unconfigured:
-                add_ip(name, None)
-        addr = addr[0].ifa_next
-
-    libc.freeifaddrs(addr0)
-
-    return ips.values()

RNS/vendor/ifaddr/_shared.py

@@ -1,198 +0,0 @@
-# Copyright (c) 2014 Stefan C. Mueller
-
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-
-
-import ctypes
-import socket
-import ipaddress
-import platform
-
-from typing import List, Optional, Tuple, Union
-
-class Adapter(object):
-    """
-    Represents a network interface device controller (NIC), such as a
-    network card. An adapter can have multiple IPs.
-
-    On Linux aliasing (multiple IPs per physical NIC) is implemented
-    by creating 'virtual' adapters, each represented by an instance
-    of this class. Each of those 'virtual' adapters can have both
-    a IPv4 and an IPv6 IP address.
-    """
-
-    def __init__(self, name: str, nice_name: str, ips: List['IP'], index: Optional[int] = None) -> None:
-
-        #: Unique name that identifies the adapter in the system.
-        #: On Linux this is of the form of `eth0` or `eth0:1`, on
-        #: Windows it is a UUID in string representation, such as
-        #: `{846EE342-7039-11DE-9D20-806E6F6E6963}`.
-        self.name = name
-
-        #: Human readable name of the adpater. On Linux this
-        #: is currently the same as :attr:`name`. On Windows
-        #: this is the name of the device.
-        self.nice_name = nice_name
-
-        #: List of :class:`ifaddr.IP` instances in the order they were
-        #: reported by the system.
-        self.ips = ips
-
-        #: Adapter index as used by some API (e.g. IPv6 multicast group join).
-        self.index = index
-
-    def __repr__(self) -> str:
-        return "Adapter(name={name}, nice_name={nice_name}, ips={ips}, index={index})".format(
-            name=repr(self.name), nice_name=repr(self.nice_name), ips=repr(self.ips), index=repr(self.index)
-        )
-
-
-# Type of an IPv4 address (a string in "xxx.xxx.xxx.xxx" format)
-_IPv4Address = str
-
-# Type of an IPv6 address (a three-tuple `(ip, flowinfo, scope_id)`)
-_IPv6Address = Tuple[str, int, int]
-
-
-class IP(object):
-    """
-    Represents an IP address of an adapter.
-    """
-
-    def __init__(self, ip: Union[_IPv4Address, _IPv6Address], network_prefix: int, nice_name: str) -> None:
-
-        #: IP address. For IPv4 addresses this is a string in
-        #: "xxx.xxx.xxx.xxx" format. For IPv6 addresses this
-        #: is a three-tuple `(ip, flowinfo, scope_id)`, where
-        #: `ip` is a string in the usual collon separated
-        #: hex format.
-        self.ip = ip
-
-        #: Number of bits of the IP that represent the
-        #: network. For a `255.255.255.0` netmask, this
-        #: number would be `24`.
-        self.network_prefix = network_prefix
-
-        #: Human readable name for this IP.
-        #: On Linux is this currently the same as the adapter name.
-        #: On Windows this is the name of the network connection
-        #: as configured in the system control panel.
-        self.nice_name = nice_name
-
-    @property
-    def is_IPv4(self) -> bool:
-        """
-        Returns `True` if this IP is an IPv4 address and `False`
-        if it is an IPv6 address.
-        """
-        return not isinstance(self.ip, tuple)
-
-    @property
-    def is_IPv6(self) -> bool:
-        """
-        Returns `True` if this IP is an IPv6 address and `False`
-        if it is an IPv4 address.
-        """
-        return isinstance(self.ip, tuple)
-
-    def __repr__(self) -> str:
-        return "IP(ip={ip}, network_prefix={network_prefix}, nice_name={nice_name})".format(
-            ip=repr(self.ip), network_prefix=repr(self.network_prefix), nice_name=repr(self.nice_name)
-        )
-
-
-if platform.system() == "Darwin" or "BSD" in platform.system():
-
-    # BSD derived systems use marginally different structures
-    # than either Linux or Windows.
-    # I still keep it in `shared` since we can use
-    # both structures equally.
-
-    class sockaddr(ctypes.Structure):
-        _fields_ = [
-            ('sa_len', ctypes.c_uint8),
-            ('sa_familiy', ctypes.c_uint8),
-            ('sa_data', ctypes.c_uint8 * 14),
-        ]
-
-    class sockaddr_in(ctypes.Structure):
-        _fields_ = [
-            ('sa_len', ctypes.c_uint8),
-            ('sa_familiy', ctypes.c_uint8),
-            ('sin_port', ctypes.c_uint16),
-            ('sin_addr', ctypes.c_uint8 * 4),
-            ('sin_zero', ctypes.c_uint8 * 8),
-        ]
-
-    class sockaddr_in6(ctypes.Structure):
-        _fields_ = [
-            ('sa_len', ctypes.c_uint8),
-            ('sa_familiy', ctypes.c_uint8),
-            ('sin6_port', ctypes.c_uint16),
-            ('sin6_flowinfo', ctypes.c_uint32),
-            ('sin6_addr', ctypes.c_uint8 * 16),
-            ('sin6_scope_id', ctypes.c_uint32),
-        ]
-
-else:
-
-    class sockaddr(ctypes.Structure):  # type: ignore
-        _fields_ = [('sa_familiy', ctypes.c_uint16), ('sa_data', ctypes.c_uint8 * 14)]
-
-    class sockaddr_in(ctypes.Structure):  # type: ignore
-        _fields_ = [
-            ('sin_familiy', ctypes.c_uint16),
-            ('sin_port', ctypes.c_uint16),
-            ('sin_addr', ctypes.c_uint8 * 4),
-            ('sin_zero', ctypes.c_uint8 * 8),
-        ]
-
-    class sockaddr_in6(ctypes.Structure):  # type: ignore
-        _fields_ = [
-            ('sin6_familiy', ctypes.c_uint16),
-            ('sin6_port', ctypes.c_uint16),
-            ('sin6_flowinfo', ctypes.c_uint32),
-            ('sin6_addr', ctypes.c_uint8 * 16),
-            ('sin6_scope_id', ctypes.c_uint32),
-        ]
-
-
-def sockaddr_to_ip(sockaddr_ptr: 'ctypes.pointer[sockaddr]') -> Optional[Union[_IPv4Address, _IPv6Address]]:
-    if sockaddr_ptr:
-        if sockaddr_ptr[0].sa_familiy == socket.AF_INET:
-            ipv4 = ctypes.cast(sockaddr_ptr, ctypes.POINTER(sockaddr_in))
-            ippacked = bytes(bytearray(ipv4[0].sin_addr))
-            ip = str(ipaddress.ip_address(ippacked))
-            return ip
-        elif sockaddr_ptr[0].sa_familiy == socket.AF_INET6:
-            ipv6 = ctypes.cast(sockaddr_ptr, ctypes.POINTER(sockaddr_in6))
-            flowinfo = ipv6[0].sin6_flowinfo
-            ippacked = bytes(bytearray(ipv6[0].sin6_addr))
-            ip = str(ipaddress.ip_address(ippacked))
-            scope_id = ipv6[0].sin6_scope_id
-            return (ip, flowinfo, scope_id)
-    return None
-
-
-def ipv6_prefixlength(address: ipaddress.IPv6Address) -> int:
-    prefix_length = 0
-    for i in range(address.max_prefixlen):
-        if int(address) >> i & 1:
-            prefix_length = prefix_length + 1
-    return prefix_length

RNS/vendor/ifaddr/_win32.py

@@ -1,145 +0,0 @@
-# Copyright (c) 2014 Stefan C. Mueller
-
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-
-
-import ctypes
-from ctypes import wintypes
-from typing import Iterable, List
-
-import RNS.vendor.ifaddr._shared as shared
-
-NO_ERROR = 0
-ERROR_BUFFER_OVERFLOW = 111
-MAX_ADAPTER_NAME_LENGTH = 256
-MAX_ADAPTER_DESCRIPTION_LENGTH = 128
-MAX_ADAPTER_ADDRESS_LENGTH = 8
-AF_UNSPEC = 0
-
-
-class SOCKET_ADDRESS(ctypes.Structure):
-    _fields_ = [('lpSockaddr', ctypes.POINTER(shared.sockaddr)), ('iSockaddrLength', wintypes.INT)]
-
-
-class IP_ADAPTER_UNICAST_ADDRESS(ctypes.Structure):
-    pass
-
-
-IP_ADAPTER_UNICAST_ADDRESS._fields_ = [
-    ('Length', wintypes.ULONG),
-    ('Flags', wintypes.DWORD),
-    ('Next', ctypes.POINTER(IP_ADAPTER_UNICAST_ADDRESS)),
-    ('Address', SOCKET_ADDRESS),
-    ('PrefixOrigin', ctypes.c_uint),
-    ('SuffixOrigin', ctypes.c_uint),
-    ('DadState', ctypes.c_uint),
-    ('ValidLifetime', wintypes.ULONG),
-    ('PreferredLifetime', wintypes.ULONG),
-    ('LeaseLifetime', wintypes.ULONG),
-    ('OnLinkPrefixLength', ctypes.c_uint8),
-]
-
-
-class IP_ADAPTER_ADDRESSES(ctypes.Structure):
-    pass
-
-
-IP_ADAPTER_ADDRESSES._fields_ = [
-    ('Length', wintypes.ULONG),
-    ('IfIndex', wintypes.DWORD),
-    ('Next', ctypes.POINTER(IP_ADAPTER_ADDRESSES)),
-    ('AdapterName', ctypes.c_char_p),
-    ('FirstUnicastAddress', ctypes.POINTER(IP_ADAPTER_UNICAST_ADDRESS)),
-    ('FirstAnycastAddress', ctypes.c_void_p),
-    ('FirstMulticastAddress', ctypes.c_void_p),
-    ('FirstDnsServerAddress', ctypes.c_void_p),
-    ('DnsSuffix', ctypes.c_wchar_p),
-    ('Description', ctypes.c_wchar_p),
-    ('FriendlyName', ctypes.c_wchar_p),
-]
-
-
-iphlpapi = ctypes.windll.LoadLibrary("Iphlpapi")  # type: ignore
-
-
-def enumerate_interfaces_of_adapter(
-    nice_name: str, address: IP_ADAPTER_UNICAST_ADDRESS
-) -> Iterable[shared.IP]:
-
-    # Iterate through linked list and fill list
-    addresses = []  # type: List[IP_ADAPTER_UNICAST_ADDRESS]
-    while True:
-        addresses.append(address)
-        if not address.Next:
-            break
-        address = address.Next[0]
-
-    for address in addresses:
-        ip = shared.sockaddr_to_ip(address.Address.lpSockaddr)
-        assert ip is not None, f'sockaddr_to_ip({address.Address.lpSockaddr}) returned None'
-        network_prefix = address.OnLinkPrefixLength
-        yield shared.IP(ip, network_prefix, nice_name)
-
-
-def get_adapters(include_unconfigured: bool = False) -> Iterable[shared.Adapter]:
-
-    # Call GetAdaptersAddresses() with error and buffer size handling
-
-    addressbuffersize = wintypes.ULONG(15 * 1024)
-    retval = ERROR_BUFFER_OVERFLOW
-    while retval == ERROR_BUFFER_OVERFLOW:
-        addressbuffer = ctypes.create_string_buffer(addressbuffersize.value)
-        retval = iphlpapi.GetAdaptersAddresses(
-            wintypes.ULONG(AF_UNSPEC),
-            wintypes.ULONG(0),
-            None,
-            ctypes.byref(addressbuffer),
-            ctypes.byref(addressbuffersize),
-        )
-    if retval != NO_ERROR:
-        raise ctypes.WinError()  # type: ignore
-
-    # Iterate through adapters fill array
-    address_infos = []  # type: List[IP_ADAPTER_ADDRESSES]
-    address_info = IP_ADAPTER_ADDRESSES.from_buffer(addressbuffer)
-    while True:
-        address_infos.append(address_info)
-        if not address_info.Next:
-            break
-        address_info = address_info.Next[0]
-
-    # Iterate through unicast addresses
-    result = []  # type: List[shared.Adapter]
-    for adapter_info in address_infos:
-
-        # We don't expect non-ascii characters here, so encoding shouldn't matter
-        name = adapter_info.AdapterName.decode()
-        nice_name = adapter_info.Description
-        index = adapter_info.IfIndex
-
-        if adapter_info.FirstUnicastAddress:
-            ips = enumerate_interfaces_of_adapter(
-                adapter_info.FriendlyName, adapter_info.FirstUnicastAddress[0]
-            )
-            ips = list(ips)
-            result.append(shared.Adapter(name, nice_name, ips, index=index))
-        elif include_unconfigured:
-            result.append(shared.Adapter(name, nice_name, [], index=index))
-
-    return result

RNS/vendor/ifaddr/niwrapper.py

@@ -1,38 +0,0 @@
-import ipaddress
-import RNS.vendor.ifaddr
-import socket
-
-from typing import List
-
-AF_INET6 = socket.AF_INET6.value
-AF_INET = socket.AF_INET.value
-
-def interfaces() -> List[str]:
-    adapters = RNS.vendor.ifaddr.get_adapters(include_unconfigured=True)
-    return [a.name for a in adapters]
-
-def ifaddresses(ifname) -> dict:
-    adapters = RNS.vendor.ifaddr.get_adapters(include_unconfigured=True)
-    ifa = {}
-    for a in adapters:
-        if a.name == ifname:
-            ipv4s = []
-            ipv6s = []
-            for ip in a.ips:
-                t = {}
-                if ip.is_IPv4:
-                    net = ipaddress.ip_network(str(ip.ip)+"/"+str(ip.network_prefix), strict=False)
-                    t["addr"] = ip.ip
-                    t["prefix"] = ip.network_prefix
-                    t["broadcast"] = str(net.broadcast_address)
-                    ipv4s.append(t)
-                if ip.is_IPv6:
-                    t["addr"] = ip.ip[0]
-                    ipv6s.append(t)
-
-            if len(ipv4s) > 0:
-                ifa[AF_INET] = ipv4s
-            if len(ipv6s) > 0:
-                ifa[AF_INET6] = ipv6s
-
-    return ifa

RNS/vendor/platformutils.py

@@ -1,42 +1,69 @@
+# Reticulum License
+#
+# Copyright (c) 2016-2025 Mark Qvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# - The Software shall not be used in any kind of system which includes amongst
+#   its functions the ability to purposefully do harm to human beings.
+#
+# - The Software shall not be used, directly or indirectly, in the creation of
+#   an artificial intelligence, machine learning or language model training
+#   dataset, including but not limited to any use that contributes to the
+#   training or development of such a model or algorithm.
+#
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 def get_platform():
     from os import environ
-    if "ANDROID_ARGUMENT" in environ:
-        return "android"
-    elif "ANDROID_ROOT" in environ:
-        return "android"
+    if "ANDROID_ARGUMENT" in environ: return "android"
+    elif "ANDROID_ROOT" in environ:   return "android"
     else:
         import sys
         return sys.platform
 
 def is_linux():
-    if get_platform() == "linux":
-        return True
-    else:
-        return False
+    if get_platform() == "linux": return True
+    else: return False
 
 def is_darwin():
-    if get_platform() == "darwin":
-        return True
-    else:
-        return False
+    if get_platform() == "darwin": return True
+    else: return False
 
 def is_android():
-    if get_platform() == "android":
-        return True
-    else:
-        return False
+    if get_platform() == "android": return True
+    else: return False
 
 def is_windows():
-    if str(get_platform()).startswith("win"):
-        return True
-    else:
-        return False
+    if str(get_platform()).startswith("win"): return True
+    else: return False
+
+def use_epoll():
+    if is_linux() or is_android(): return True
+    else: return False
+
+def use_af_unix():
+    if is_linux() or is_android(): return True
+    else: return False
 
 def platform_checks():
     if is_windows():
         import sys
-        if sys.version_info.major >= 3 and sys.version_info.minor >= 8:
-            pass
+        if sys.version_info.major >= 3 and sys.version_info.minor >= 8: pass
         else:
             import RNS
             RNS.log("On Windows, Reticulum requires Python 3.8 or higher.", RNS.LOG_ERROR)
@@ -45,7 +72,5 @@ def platform_checks():
 
 def cryptography_old_api():
     import cryptography
-    if cryptography.__version__ == "2.8":
-        return True
-    else:
-        return False
+    if cryptography.__version__ == "2.8": return True
+    else: return False

RNS/vendor/six.py

@@ -1,998 +0,0 @@
-# Copyright (c) 2010-2020 Benjamin Peterson
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
-"""Utilities for writing code that runs on Python 2 and 3"""
-
-from __future__ import absolute_import
-
-import functools
-import itertools
-import operator
-import sys
-import types
-
-__author__ = "Benjamin Peterson <benjamin@python.org>"
-__version__ = "1.16.0"
-
-
-# Useful for very coarse version differentiation.
-PY2 = sys.version_info[0] == 2
-PY3 = sys.version_info[0] == 3
-PY34 = sys.version_info[0:2] >= (3, 4)
-
-if PY3:
-    string_types = str,
-    integer_types = int,
-    class_types = type,
-    text_type = str
-    binary_type = bytes
-
-    MAXSIZE = sys.maxsize
-else:
-    string_types = basestring,
-    integer_types = (int, long)
-    class_types = (type, types.ClassType)
-    text_type = unicode
-    binary_type = str
-
-    if sys.platform.startswith("java"):
-        # Jython always uses 32 bits.
-        MAXSIZE = int((1 << 31) - 1)
-    else:
-        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
-        class X(object):
-
-            def __len__(self):
-                return 1 << 31
-        try:
-            len(X())
-        except OverflowError:
-            # 32-bit
-            MAXSIZE = int((1 << 31) - 1)
-        else:
-            # 64-bit
-            MAXSIZE = int((1 << 63) - 1)
-        del X
-
-if PY34:
-    from importlib.util import spec_from_loader
-else:
-    spec_from_loader = None
-
-
-def _add_doc(func, doc):
-    """Add documentation to a function."""
-    func.__doc__ = doc
-
-
-def _import_module(name):
-    """Import module, returning the module after the last dot."""
-    __import__(name)
-    return sys.modules[name]
-
-
-class _LazyDescr(object):
-
-    def __init__(self, name):
-        self.name = name
-
-    def __get__(self, obj, tp):
-        result = self._resolve()
-        setattr(obj, self.name, result)  # Invokes __set__.
-        try:
-            # This is a bit ugly, but it avoids running this again by
-            # removing this descriptor.
-            delattr(obj.__class__, self.name)
-        except AttributeError:
-            pass
-        return result
-
-
-class MovedModule(_LazyDescr):
-
-    def __init__(self, name, old, new=None):
-        super(MovedModule, self).__init__(name)
-        if PY3:
-            if new is None:
-                new = name
-            self.mod = new
-        else:
-            self.mod = old
-
-    def _resolve(self):
-        return _import_module(self.mod)
-
-    def __getattr__(self, attr):
-        _module = self._resolve()
-        value = getattr(_module, attr)
-        setattr(self, attr, value)
-        return value
-
-
-class _LazyModule(types.ModuleType):
-
-    def __init__(self, name):
-        super(_LazyModule, self).__init__(name)
-        self.__doc__ = self.__class__.__doc__
-
-    def __dir__(self):
-        attrs = ["__doc__", "__name__"]
-        attrs += [attr.name for attr in self._moved_attributes]
-        return attrs
-
-    # Subclasses should override this
-    _moved_attributes = []
-
-
-class MovedAttribute(_LazyDescr):
-
-    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
-        super(MovedAttribute, self).__init__(name)
-        if PY3:
-            if new_mod is None:
-                new_mod = name
-            self.mod = new_mod
-            if new_attr is None:
-                if old_attr is None:
-                    new_attr = name
-                else:
-                    new_attr = old_attr
-            self.attr = new_attr
-        else:
-            self.mod = old_mod
-            if old_attr is None:
-                old_attr = name
-            self.attr = old_attr
-
-    def _resolve(self):
-        module = _import_module(self.mod)
-        return getattr(module, self.attr)
-
-
-class _SixMetaPathImporter(object):
-
-    """
-    A meta path importer to import six.moves and its submodules.
-
-    This class implements a PEP302 finder and loader. It should be compatible
-    with Python 2.5 and all existing versions of Python3
-    """
-
-    def __init__(self, six_module_name):
-        self.name = six_module_name
-        self.known_modules = {}
-
-    def _add_module(self, mod, *fullnames):
-        for fullname in fullnames:
-            self.known_modules[self.name + "." + fullname] = mod
-
-    def _get_module(self, fullname):
-        return self.known_modules[self.name + "." + fullname]
-
-    def find_module(self, fullname, path=None):
-        if fullname in self.known_modules:
-            return self
-        return None
-
-    def find_spec(self, fullname, path, target=None):
-        if fullname in self.known_modules:
-            return spec_from_loader(fullname, self)
-        return None
-
-    def __get_module(self, fullname):
-        try:
-            return self.known_modules[fullname]
-        except KeyError:
-            raise ImportError("This loader does not know module " + fullname)
-
-    def load_module(self, fullname):
-        try:
-            # in case of a reload
-            return sys.modules[fullname]
-        except KeyError:
-            pass
-        mod = self.__get_module(fullname)
-        if isinstance(mod, MovedModule):
-            mod = mod._resolve()
-        else:
-            mod.__loader__ = self
-        sys.modules[fullname] = mod
-        return mod
-
-    def is_package(self, fullname):
-        """
-        Return true, if the named module is a package.
-
-        We need this method to get correct spec objects with
-        Python 3.4 (see PEP451)
-        """
-        return hasattr(self.__get_module(fullname), "__path__")
-
-    def get_code(self, fullname):
-        """Return None
-
-        Required, if is_package is implemented"""
-        self.__get_module(fullname)  # eventually raises ImportError
-        return None
-    get_source = get_code  # same as get_code
-
-    def create_module(self, spec):
-        return self.load_module(spec.name)
-
-    def exec_module(self, module):
-        pass
-
-_importer = _SixMetaPathImporter(__name__)
-
-
-class _MovedItems(_LazyModule):
-
-    """Lazy loading of moved objects"""
-    __path__ = []  # mark as package
-
-
-_moved_attributes = [
-    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
-    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
-    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
-    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
-    MovedAttribute("intern", "__builtin__", "sys"),
-    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
-    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
-    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
-    MovedAttribute("getoutput", "commands", "subprocess"),
-    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
-    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
-    MovedAttribute("reduce", "__builtin__", "functools"),
-    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
-    MovedAttribute("StringIO", "StringIO", "io"),
-    MovedAttribute("UserDict", "UserDict", "collections"),
-    MovedAttribute("UserList", "UserList", "collections"),
-    MovedAttribute("UserString", "UserString", "collections"),
-    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
-    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
-    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
-    MovedModule("builtins", "__builtin__"),
-    MovedModule("configparser", "ConfigParser"),
-    MovedModule("collections_abc", "collections", "collections.abc" if sys.version_info >= (3, 3) else "collections"),
-    MovedModule("copyreg", "copy_reg"),
-    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
-    MovedModule("dbm_ndbm", "dbm", "dbm.ndbm"),
-    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread" if sys.version_info < (3, 9) else "_thread"),
-    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
-    MovedModule("http_cookies", "Cookie", "http.cookies"),
-    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
-    MovedModule("html_parser", "HTMLParser", "html.parser"),
-    MovedModule("http_client", "httplib", "http.client"),
-    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
-    MovedModule("email_mime_image", "email.MIMEImage", "email.mime.image"),
-    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
-    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
-    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
-    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
-    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
-    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
-    MovedModule("cPickle", "cPickle", "pickle"),
-    MovedModule("queue", "Queue"),
-    MovedModule("reprlib", "repr"),
-    MovedModule("socketserver", "SocketServer"),
-    MovedModule("_thread", "thread", "_thread"),
-    MovedModule("tkinter", "Tkinter"),
-    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
-    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
-    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
-    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
-    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
-    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
-    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
-    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
-    MovedModule("tkinter_colorchooser", "tkColorChooser",
-                "tkinter.colorchooser"),
-    MovedModule("tkinter_commondialog", "tkCommonDialog",
-                "tkinter.commondialog"),
-    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
-    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
-    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
-    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
-                "tkinter.simpledialog"),
-    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
-    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
-    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
-    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
-    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
-    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
-]
-# Add windows specific modules.
-if sys.platform == "win32":
-    _moved_attributes += [
-        MovedModule("winreg", "_winreg"),
-    ]
-
-for attr in _moved_attributes:
-    setattr(_MovedItems, attr.name, attr)
-    if isinstance(attr, MovedModule):
-        _importer._add_module(attr, "moves." + attr.name)
-del attr
-
-_MovedItems._moved_attributes = _moved_attributes
-
-moves = _MovedItems(__name__ + ".moves")
-_importer._add_module(moves, "moves")
-
-
-class Module_six_moves_urllib_parse(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_parse"""
-
-
-_urllib_parse_moved_attributes = [
-    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
-    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
-    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
-    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
-    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
-    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
-    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
-    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
-    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
-    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
-    MovedAttribute("quote", "urllib", "urllib.parse"),
-    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
-    MovedAttribute("unquote", "urllib", "urllib.parse"),
-    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
-    MovedAttribute("unquote_to_bytes", "urllib", "urllib.parse", "unquote", "unquote_to_bytes"),
-    MovedAttribute("urlencode", "urllib", "urllib.parse"),
-    MovedAttribute("splitquery", "urllib", "urllib.parse"),
-    MovedAttribute("splittag", "urllib", "urllib.parse"),
-    MovedAttribute("splituser", "urllib", "urllib.parse"),
-    MovedAttribute("splitvalue", "urllib", "urllib.parse"),
-    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
-    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
-    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
-    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
-    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
-]
-for attr in _urllib_parse_moved_attributes:
-    setattr(Module_six_moves_urllib_parse, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
-                      "moves.urllib_parse", "moves.urllib.parse")
-
-
-class Module_six_moves_urllib_error(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_error"""
-
-
-_urllib_error_moved_attributes = [
-    MovedAttribute("URLError", "urllib2", "urllib.error"),
-    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
-    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
-]
-for attr in _urllib_error_moved_attributes:
-    setattr(Module_six_moves_urllib_error, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
-                      "moves.urllib_error", "moves.urllib.error")
-
-
-class Module_six_moves_urllib_request(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_request"""
-
-
-_urllib_request_moved_attributes = [
-    MovedAttribute("urlopen", "urllib2", "urllib.request"),
-    MovedAttribute("install_opener", "urllib2", "urllib.request"),
-    MovedAttribute("build_opener", "urllib2", "urllib.request"),
-    MovedAttribute("pathname2url", "urllib", "urllib.request"),
-    MovedAttribute("url2pathname", "urllib", "urllib.request"),
-    MovedAttribute("getproxies", "urllib", "urllib.request"),
-    MovedAttribute("Request", "urllib2", "urllib.request"),
-    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
-    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
-    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
-    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
-    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
-    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
-    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
-    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
-    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
-    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
-    MovedAttribute("URLopener", "urllib", "urllib.request"),
-    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
-    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
-    MovedAttribute("parse_http_list", "urllib2", "urllib.request"),
-    MovedAttribute("parse_keqv_list", "urllib2", "urllib.request"),
-]
-for attr in _urllib_request_moved_attributes:
-    setattr(Module_six_moves_urllib_request, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
-                      "moves.urllib_request", "moves.urllib.request")
-
-
-class Module_six_moves_urllib_response(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_response"""
-
-
-_urllib_response_moved_attributes = [
-    MovedAttribute("addbase", "urllib", "urllib.response"),
-    MovedAttribute("addclosehook", "urllib", "urllib.response"),
-    MovedAttribute("addinfo", "urllib", "urllib.response"),
-    MovedAttribute("addinfourl", "urllib", "urllib.response"),
-]
-for attr in _urllib_response_moved_attributes:
-    setattr(Module_six_moves_urllib_response, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
-                      "moves.urllib_response", "moves.urllib.response")
-
-
-class Module_six_moves_urllib_robotparser(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
-
-
-_urllib_robotparser_moved_attributes = [
-    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
-]
-for attr in _urllib_robotparser_moved_attributes:
-    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
-                      "moves.urllib_robotparser", "moves.urllib.robotparser")
-
-
-class Module_six_moves_urllib(types.ModuleType):
-
-    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
-    __path__ = []  # mark as package
-    parse = _importer._get_module("moves.urllib_parse")
-    error = _importer._get_module("moves.urllib_error")
-    request = _importer._get_module("moves.urllib_request")
-    response = _importer._get_module("moves.urllib_response")
-    robotparser = _importer._get_module("moves.urllib_robotparser")
-
-    def __dir__(self):
-        return ['parse', 'error', 'request', 'response', 'robotparser']
-
-_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
-                      "moves.urllib")
-
-
-def add_move(move):
-    """Add an item to six.moves."""
-    setattr(_MovedItems, move.name, move)
-
-
-def remove_move(name):
-    """Remove item from six.moves."""
-    try:
-        delattr(_MovedItems, name)
-    except AttributeError:
-        try:
-            del moves.__dict__[name]
-        except KeyError:
-            raise AttributeError("no such move, %r" % (name,))
-
-
-if PY3:
-    _meth_func = "__func__"
-    _meth_self = "__self__"
-
-    _func_closure = "__closure__"
-    _func_code = "__code__"
-    _func_defaults = "__defaults__"
-    _func_globals = "__globals__"
-else:
-    _meth_func = "im_func"
-    _meth_self = "im_self"
-
-    _func_closure = "func_closure"
-    _func_code = "func_code"
-    _func_defaults = "func_defaults"
-    _func_globals = "func_globals"
-
-
-try:
-    advance_iterator = next
-except NameError:
-    def advance_iterator(it):
-        return it.next()
-next = advance_iterator
-
-
-try:
-    callable = callable
-except NameError:
-    def callable(obj):
-        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
-
-
-if PY3:
-    def get_unbound_function(unbound):
-        return unbound
-
-    create_bound_method = types.MethodType
-
-    def create_unbound_method(func, cls):
-        return func
-
-    Iterator = object
-else:
-    def get_unbound_function(unbound):
-        return unbound.im_func
-
-    def create_bound_method(func, obj):
-        return types.MethodType(func, obj, obj.__class__)
-
-    def create_unbound_method(func, cls):
-        return types.MethodType(func, None, cls)
-
-    class Iterator(object):
-
-        def next(self):
-            return type(self).__next__(self)
-
-    callable = callable
-_add_doc(get_unbound_function,
-         """Get the function out of a possibly unbound function""")
-
-
-get_method_function = operator.attrgetter(_meth_func)
-get_method_self = operator.attrgetter(_meth_self)
-get_function_closure = operator.attrgetter(_func_closure)
-get_function_code = operator.attrgetter(_func_code)
-get_function_defaults = operator.attrgetter(_func_defaults)
-get_function_globals = operator.attrgetter(_func_globals)
-
-
-if PY3:
-    def iterkeys(d, **kw):
-        return iter(d.keys(**kw))
-
-    def itervalues(d, **kw):
-        return iter(d.values(**kw))
-
-    def iteritems(d, **kw):
-        return iter(d.items(**kw))
-
-    def iterlists(d, **kw):
-        return iter(d.lists(**kw))
-
-    viewkeys = operator.methodcaller("keys")
-
-    viewvalues = operator.methodcaller("values")
-
-    viewitems = operator.methodcaller("items")
-else:
-    def iterkeys(d, **kw):
-        return d.iterkeys(**kw)
-
-    def itervalues(d, **kw):
-        return d.itervalues(**kw)
-
-    def iteritems(d, **kw):
-        return d.iteritems(**kw)
-
-    def iterlists(d, **kw):
-        return d.iterlists(**kw)
-
-    viewkeys = operator.methodcaller("viewkeys")
-
-    viewvalues = operator.methodcaller("viewvalues")
-
-    viewitems = operator.methodcaller("viewitems")
-
-_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
-_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
-_add_doc(iteritems,
-         "Return an iterator over the (key, value) pairs of a dictionary.")
-_add_doc(iterlists,
-         "Return an iterator over the (key, [values]) pairs of a dictionary.")
-
-
-if PY3:
-    def b(s):
-        return s.encode("latin-1")
-
-    def u(s):
-        return s
-    unichr = chr
-    import struct
-    int2byte = struct.Struct(">B").pack
-    del struct
-    byte2int = operator.itemgetter(0)
-    indexbytes = operator.getitem
-    iterbytes = iter
-    import io
-    StringIO = io.StringIO
-    BytesIO = io.BytesIO
-    del io
-    _assertCountEqual = "assertCountEqual"
-    if sys.version_info[1] <= 1:
-        _assertRaisesRegex = "assertRaisesRegexp"
-        _assertRegex = "assertRegexpMatches"
-        _assertNotRegex = "assertNotRegexpMatches"
-    else:
-        _assertRaisesRegex = "assertRaisesRegex"
-        _assertRegex = "assertRegex"
-        _assertNotRegex = "assertNotRegex"
-else:
-    def b(s):
-        return s
-    # Workaround for standalone backslash
-
-    def u(s):
-        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
-    unichr = unichr
-    int2byte = chr
-
-    def byte2int(bs):
-        return ord(bs[0])
-
-    def indexbytes(buf, i):
-        return ord(buf[i])
-    iterbytes = functools.partial(itertools.imap, ord)
-    import StringIO
-    StringIO = BytesIO = StringIO.StringIO
-    _assertCountEqual = "assertItemsEqual"
-    _assertRaisesRegex = "assertRaisesRegexp"
-    _assertRegex = "assertRegexpMatches"
-    _assertNotRegex = "assertNotRegexpMatches"
-_add_doc(b, """Byte literal""")
-_add_doc(u, """Text literal""")
-
-
-def assertCountEqual(self, *args, **kwargs):
-    return getattr(self, _assertCountEqual)(*args, **kwargs)
-
-
-def assertRaisesRegex(self, *args, **kwargs):
-    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
-
-
-def assertRegex(self, *args, **kwargs):
-    return getattr(self, _assertRegex)(*args, **kwargs)
-
-
-def assertNotRegex(self, *args, **kwargs):
-    return getattr(self, _assertNotRegex)(*args, **kwargs)
-
-
-if PY3:
-    exec_ = getattr(moves.builtins, "exec")
-
-    def reraise(tp, value, tb=None):
-        try:
-            if value is None:
-                value = tp()
-            if value.__traceback__ is not tb:
-                raise value.with_traceback(tb)
-            raise value
-        finally:
-            value = None
-            tb = None
-
-else:
-    def exec_(_code_, _globs_=None, _locs_=None):
-        """Execute code in a namespace."""
-        if _globs_ is None:
-            frame = sys._getframe(1)
-            _globs_ = frame.f_globals
-            if _locs_ is None:
-                _locs_ = frame.f_locals
-            del frame
-        elif _locs_ is None:
-            _locs_ = _globs_
-        exec("""exec _code_ in _globs_, _locs_""")
-
-    exec_("""def reraise(tp, value, tb=None):
-    try:
-        raise tp, value, tb
-    finally:
-        tb = None
-""")
-
-
-if sys.version_info[:2] > (3,):
-    exec_("""def raise_from(value, from_value):
-    try:
-        raise value from from_value
-    finally:
-        value = None
-""")
-else:
-    def raise_from(value, from_value):
-        raise value
-
-
-print_ = getattr(moves.builtins, "print", None)
-if print_ is None:
-    def print_(*args, **kwargs):
-        """The new-style print function for Python 2.4 and 2.5."""
-        fp = kwargs.pop("file", sys.stdout)
-        if fp is None:
-            return
-
-        def write(data):
-            if not isinstance(data, basestring):
-                data = str(data)
-            # If the file has an encoding, encode unicode with it.
-            if (isinstance(fp, file) and
-                    isinstance(data, unicode) and
-                    fp.encoding is not None):
-                errors = getattr(fp, "errors", None)
-                if errors is None:
-                    errors = "strict"
-                data = data.encode(fp.encoding, errors)
-            fp.write(data)
-        want_unicode = False
-        sep = kwargs.pop("sep", None)
-        if sep is not None:
-            if isinstance(sep, unicode):
-                want_unicode = True
-            elif not isinstance(sep, str):
-                raise TypeError("sep must be None or a string")
-        end = kwargs.pop("end", None)
-        if end is not None:
-            if isinstance(end, unicode):
-                want_unicode = True
-            elif not isinstance(end, str):
-                raise TypeError("end must be None or a string")
-        if kwargs:
-            raise TypeError("invalid keyword arguments to print()")
-        if not want_unicode:
-            for arg in args:
-                if isinstance(arg, unicode):
-                    want_unicode = True
-                    break
-        if want_unicode:
-            newline = unicode("\n")
-            space = unicode(" ")
-        else:
-            newline = "\n"
-            space = " "
-        if sep is None:
-            sep = space
-        if end is None:
-            end = newline
-        for i, arg in enumerate(args):
-            if i:
-                write(sep)
-            write(arg)
-        write(end)
-if sys.version_info[:2] < (3, 3):
-    _print = print_
-
-    def print_(*args, **kwargs):
-        fp = kwargs.get("file", sys.stdout)
-        flush = kwargs.pop("flush", False)
-        _print(*args, **kwargs)
-        if flush and fp is not None:
-            fp.flush()
-
-_add_doc(reraise, """Reraise an exception.""")
-
-if sys.version_info[0:2] < (3, 4):
-    # This does exactly the same what the :func:`py3:functools.update_wrapper`
-    # function does on Python versions after 3.2. It sets the ``__wrapped__``
-    # attribute on ``wrapper`` object and it doesn't raise an error if any of
-    # the attributes mentioned in ``assigned`` and ``updated`` are missing on
-    # ``wrapped`` object.
-    def _update_wrapper(wrapper, wrapped,
-                        assigned=functools.WRAPPER_ASSIGNMENTS,
-                        updated=functools.WRAPPER_UPDATES):
-        for attr in assigned:
-            try:
-                value = getattr(wrapped, attr)
-            except AttributeError:
-                continue
-            else:
-                setattr(wrapper, attr, value)
-        for attr in updated:
-            getattr(wrapper, attr).update(getattr(wrapped, attr, {}))
-        wrapper.__wrapped__ = wrapped
-        return wrapper
-    _update_wrapper.__doc__ = functools.update_wrapper.__doc__
-
-    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
-              updated=functools.WRAPPER_UPDATES):
-        return functools.partial(_update_wrapper, wrapped=wrapped,
-                                 assigned=assigned, updated=updated)
-    wraps.__doc__ = functools.wraps.__doc__
-
-else:
-    wraps = functools.wraps
-
-
-def with_metaclass(meta, *bases):
-    """Create a base class with a metaclass."""
-    # This requires a bit of explanation: the basic idea is to make a dummy
-    # metaclass for one level of class instantiation that replaces itself with
-    # the actual metaclass.
-    class metaclass(type):
-
-        def __new__(cls, name, this_bases, d):
-            if sys.version_info[:2] >= (3, 7):
-                # This version introduced PEP 560 that requires a bit
-                # of extra care (we mimic what is done by __build_class__).
-                resolved_bases = types.resolve_bases(bases)
-                if resolved_bases is not bases:
-                    d['__orig_bases__'] = bases
-            else:
-                resolved_bases = bases
-            return meta(name, resolved_bases, d)
-
-        @classmethod
-        def __prepare__(cls, name, this_bases):
-            return meta.__prepare__(name, bases)
-    return type.__new__(metaclass, 'temporary_class', (), {})
-
-
-def add_metaclass(metaclass):
-    """Class decorator for creating a class with a metaclass."""
-    def wrapper(cls):
-        orig_vars = cls.__dict__.copy()
-        slots = orig_vars.get('__slots__')
-        if slots is not None:
-            if isinstance(slots, str):
-                slots = [slots]
-            for slots_var in slots:
-                orig_vars.pop(slots_var)
-        orig_vars.pop('__dict__', None)
-        orig_vars.pop('__weakref__', None)
-        if hasattr(cls, '__qualname__'):
-            orig_vars['__qualname__'] = cls.__qualname__
-        return metaclass(cls.__name__, cls.__bases__, orig_vars)
-    return wrapper
-
-
-def ensure_binary(s, encoding='utf-8', errors='strict'):
-    """Coerce **s** to six.binary_type.
-
-    For Python 2:
-      - `unicode` -> encoded to `str`
-      - `str` -> `str`
-
-    For Python 3:
-      - `str` -> encoded to `bytes`
-      - `bytes` -> `bytes`
-    """
-    if isinstance(s, binary_type):
-        return s
-    if isinstance(s, text_type):
-        return s.encode(encoding, errors)
-    raise TypeError("not expecting type '%s'" % type(s))
-
-
-def ensure_str(s, encoding='utf-8', errors='strict'):
-    """Coerce *s* to `str`.
-
-    For Python 2:
-      - `unicode` -> encoded to `str`
-      - `str` -> `str`
-
-    For Python 3:
-      - `str` -> `str`
-      - `bytes` -> decoded to `str`
-    """
-    # Optimization: Fast return for the common case.
-    if type(s) is str:
-        return s
-    if PY2 and isinstance(s, text_type):
-        return s.encode(encoding, errors)
-    elif PY3 and isinstance(s, binary_type):
-        return s.decode(encoding, errors)
-    elif not isinstance(s, (text_type, binary_type)):
-        raise TypeError("not expecting type '%s'" % type(s))
-    return s
-
-
-def ensure_text(s, encoding='utf-8', errors='strict'):
-    """Coerce *s* to six.text_type.
-
-    For Python 2:
-      - `unicode` -> `unicode`
-      - `str` -> `unicode`
-
-    For Python 3:
-      - `str` -> `str`
-      - `bytes` -> decoded to `str`
-    """
-    if isinstance(s, binary_type):
-        return s.decode(encoding, errors)
-    elif isinstance(s, text_type):
-        return s
-    else:
-        raise TypeError("not expecting type '%s'" % type(s))
-
-
-def python_2_unicode_compatible(klass):
-    """
-    A class decorator that defines __unicode__ and __str__ methods under Python 2.
-    Under Python 3 it does nothing.
-
-    To support Python 2 and 3 with a single code base, define a __str__ method
-    returning text and apply this decorator to the class.
-    """
-    if PY2:
-        if '__str__' not in klass.__dict__:
-            raise ValueError("@python_2_unicode_compatible cannot be applied "
-                             "to %s because it doesn't define __str__()." %
-                             klass.__name__)
-        klass.__unicode__ = klass.__str__
-        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
-    return klass
-
-
-# Complete the moves implementation.
-# This code is at the end of this module to speed up module loading.
-# Turn this module into a package.
-__path__ = []  # required for PEP 302 and PEP 451
-__package__ = __name__  # see PEP 366 @ReservedAssignment
-if globals().get("__spec__") is not None:
-    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
-# Remove other six meta path importers, since they cause problems. This can
-# happen if six is removed from sys.modules and then reloaded. (Setuptools does
-# this for some reason.)
-if sys.meta_path:
-    for i, importer in enumerate(sys.meta_path):
-        # Here's some real nastiness: Another "instance" of the six module might
-        # be floating around. Therefore, we can't use isinstance() to check for
-        # the six meta path importer, since the other six instance will have
-        # inserted an importer with different class.
-        if (type(importer).__name__ == "_SixMetaPathImporter" and
-                importer.name == __name__):
-            del sys.meta_path[i]
-            break
-    del i, importer
-# Finally, add the importer to the meta path import hook.
-sys.meta_path.append(_importer)

Roadmap.md

@@ -14,15 +14,6 @@ This document outlines the currently established development roadmap for Reticul
 ## Currently Active Work Areas
 For each release cycle of Reticulum, improvements and additions from the five [Primary Efforts](#primary-efforts) are selected as active work areas, and can be expected to be included in the upcoming releases within that cycle. While not entirely set in stone for each release cycle, they serve as a pointer of what to expect in the near future.
 
-- The current `0.6.x` release cycle aims at completing
-  - [ ] Overhauling and updating the documentation
-  - [ ] Distributed Destination Naming System
-  - [ ] Create a standalone RNS Daemon app for Android
-  - [ ] Network-wide path balancing
-  - [ ] Add automatic retries to all use cases of the `Request` API
-  - [ ] Performance and memory optimisations of the Python reference implementation
-  - [ ] Fixing bugs discovered while operating Reticulum systems and applications
-
 ## Primary Efforts
 The development path for Reticulum is currently laid out in five distinct areas: *Comprehensibility*, *Universality*, *Functionality*, *Usability & Utility* and *Interfaceability*. Conceptualising the development of Reticulum into these areas serves to advance the implementation and work towards the Foundational Goals & Values of Reticulum.
 
@@ -35,17 +26,9 @@ These efforts are aimed at improving the ease of which Reticulum is understood,
         - Update announce description
         - Add in-depth explanation of the IFAC system
     - Software
-        - Update Sideband screenshots
-        - Update Sideband description
-        - Update NomadNet screenshots
-        - Update Sideband screenshots
-    - Installation
-        - [x] Add a *Reticulum On Raspberry Pi* section
-        - [x] Update *Reticulum On Android* section if necessary
-        - [x] Update Android install documentation.
+        - Update software descriptions and screenshots
     - Communications hardware section
         - Add information about RNode external displays.
-        - [x] Packet radio modems.
         - Possibly add other relevant types here as well.
     - Setup *Best Practices For...* / *Installation Examples* section.
         - Home or office (example)
@@ -55,16 +38,15 @@ These efforts are aimed at improving the ease of which Reticulum is understood,
 ### Universality
 These efforts seek to broaden the universality of the Reticulum software and hardware ecosystem by continously diversifying platform support, and by improving the overall availability and ease of deployment of the Reticulum stack.
 
-- OpenWRT support
 - Create a standalone RNS Daemon app for Android
 - A lightweight and portable C implementation for microcontrollers, µRNS
 - A portable, high-performance Reticulum implementation in C/C++, see [#21](https://github.com/markqvist/Reticulum/discussions/21)
-- Performance and memory optimisations of the Python implementation
 - Bindings for other programming languages
 
 ### Functionality
 These efforts aim to expand and improve the core functionality and reliability of Reticulum.
 
+- Add interface hot-plug and live up/down control to running instances
 - Add automatic retries to all use cases of the `Request` API
 - Network-wide path balancing
 - Distributed Destination Naming System
@@ -73,19 +55,19 @@ These efforts aim to expand and improve the core functionality and reliability o
 - [Metric-based path selection and multiple paths](https://github.com/markqvist/Reticulum/discussions/86)
 
 ### Usability & Utility
-These effors seek to make Reticulum easier to use and operate, and to expand the utility of the stack on deployed systems.
+These efforts seek to make Reticulum easier to use and operate, and to expand the utility of the stack on deployed systems.
 
 - Easy way to share interface configurations, see [#19](https://github.com/markqvist/Reticulum/discussions/19)
-- Transit traffic display in rnstatus
-- rnsconfig utility
+- Transit traffic display in `rnstatus`
+- `rnsconfig` utility
 
 ### Interfaceability
 These efforts aim to expand the types of physical and virtual interfaces that Reticulum can natively use to transport data.
 
-- Filesystem interface
 - Plain ESP32 devices (ESP-Now, WiFi, Bluetooth, etc.)
 - More LoRa transceivers
 - AT-compatible modems
+- Filesystem interface
 - Direct SDR Support
 - Optical mediums
 - IR Transceivers
@@ -105,7 +87,7 @@ The Reticulum ecosystem is enriched by several other software and hardware proje
 This section lists, in no particular order, various important efforts that would be beneficial to the goals of Reticulum.
 
 - The [RNode](https://unsigned.io/rnode/) project
-    - [ ] Create a WebUSB-based bootstrapping utility, and integrate this directly into the [RNode Bootstrap Console](#), both on-device, and on an Internet-reachable copy. This will make it much easier to create new RNodes for average users.
+    - [x] Create a WebUSB-based bootstrapping utility, and integrate this directly into the [RNode Bootstrap Console](#), both on-device, and on an Internet-reachable copy. This will make it much easier to create new RNodes for average users.
 
 ## Release History
 

docs/manual/.buildinfo

@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 0f2f9f8af8c66687a92c6541875995ff
+config: cce3deb193d6110f18b4ace0b3f4099b
 tags: 645f666f9bcd5a90fca523b33c5a78b7