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Momentum-Firmware/applications/main/bad_kb/bad_kb_script.c
Willy-JL f33b1d52f0 Bad BT remember device behavior improvements
2023-03-02 21:06:56 +00:00

1020 lines
36 KiB
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#include <furi.h>
#include <furi_hal.h>
#include <gui/gui.h>
#include <input/input.h>
#include <lib/toolbox/args.h>
#include <furi_hal_bt_hid.h>
#include <furi_hal_usb_hid.h>
#include <storage/storage.h>
#include "bad_kb_script.h"
#include <dolphin/dolphin.h>
#include <bt/bt_service/bt.h>
#include "bad_kb_app_i.h"
#define HID_BT_KEYS_STORAGE_PATH EXT_PATH("apps/Tools/.bt_hid.keys")
#define TAG "BadKB"
#define WORKER_TAG TAG "Worker"
#define FILE_BUFFER_LEN 16
#define SCRIPT_STATE_ERROR (-1)
#define SCRIPT_STATE_END (-2)
#define SCRIPT_STATE_NEXT_LINE (-3)
#define BADKB_ASCII_TO_KEY(script, x) \
(((uint8_t)x < 128) ? (script->layout[(uint8_t)x]) : HID_KEYBOARD_NONE)
typedef enum {
WorkerEvtToggle = (1 << 0),
WorkerEvtEnd = (1 << 1),
WorkerEvtConnect = (1 << 2),
WorkerEvtDisconnect = (1 << 3),
} WorkerEvtFlags;
typedef enum {
LevelRssi122_100,
LevelRssi99_80,
LevelRssi79_60,
LevelRssi59_40,
LevelRssi39_0,
LevelRssiNum,
LevelRssiError = 0xFF,
} LevelRssiRange;
/**
* Delays for waiting between HID key press and key release
*/
const uint8_t bt_hid_delays[LevelRssiNum] = {
30, // LevelRssi122_100
25, // LevelRssi99_80
20, // LevelRssi79_60
17, // LevelRssi59_40
14, // LevelRssi39_0
};
struct BadKbScript {
FuriHalUsbHidConfig hid_cfg;
BadKbState st;
FuriString* file_path;
FuriString* keyboard_layout;
uint32_t defdelay;
uint16_t layout[128];
uint32_t stringdelay;
FuriThread* thread;
uint8_t file_buf[FILE_BUFFER_LEN + 1];
uint8_t buf_start;
uint8_t buf_len;
bool file_end;
FuriString* line;
FuriString* line_prev;
uint32_t repeat_cnt;
Bt* bt;
};
typedef struct {
char* name;
uint16_t keycode;
} DuckyKey;
static const DuckyKey ducky_keys[] = {
{"CTRL-ALT", KEY_MOD_LEFT_CTRL | KEY_MOD_LEFT_ALT},
{"CTRL-SHIFT", KEY_MOD_LEFT_CTRL | KEY_MOD_LEFT_SHIFT},
{"ALT-SHIFT", KEY_MOD_LEFT_ALT | KEY_MOD_LEFT_SHIFT},
{"ALT-GUI", KEY_MOD_LEFT_ALT | KEY_MOD_LEFT_GUI},
{"GUI-SHIFT", KEY_MOD_LEFT_GUI | KEY_MOD_LEFT_SHIFT},
{"GUI-CTRL", KEY_MOD_LEFT_GUI | KEY_MOD_LEFT_CTRL},
{"CTRL", KEY_MOD_LEFT_CTRL},
{"CONTROL", KEY_MOD_LEFT_CTRL},
{"SHIFT", KEY_MOD_LEFT_SHIFT},
{"ALT", KEY_MOD_LEFT_ALT},
{"GUI", KEY_MOD_LEFT_GUI},
{"WINDOWS", KEY_MOD_LEFT_GUI},
{"DOWNARROW", HID_KEYBOARD_DOWN_ARROW},
{"DOWN", HID_KEYBOARD_DOWN_ARROW},
{"LEFTARROW", HID_KEYBOARD_LEFT_ARROW},
{"LEFT", HID_KEYBOARD_LEFT_ARROW},
{"RIGHTARROW", HID_KEYBOARD_RIGHT_ARROW},
{"RIGHT", HID_KEYBOARD_RIGHT_ARROW},
{"UPARROW", HID_KEYBOARD_UP_ARROW},
{"UP", HID_KEYBOARD_UP_ARROW},
{"ENTER", HID_KEYBOARD_RETURN},
{"BREAK", HID_KEYBOARD_PAUSE},
{"PAUSE", HID_KEYBOARD_PAUSE},
{"CAPSLOCK", HID_KEYBOARD_CAPS_LOCK},
{"DELETE", HID_KEYBOARD_DELETE},
{"BACKSPACE", HID_KEYPAD_BACKSPACE},
{"END", HID_KEYBOARD_END},
{"ESC", HID_KEYBOARD_ESCAPE},
{"ESCAPE", HID_KEYBOARD_ESCAPE},
{"HOME", HID_KEYBOARD_HOME},
{"INSERT", HID_KEYBOARD_INSERT},
{"NUMLOCK", HID_KEYPAD_NUMLOCK},
{"PAGEUP", HID_KEYBOARD_PAGE_UP},
{"PAGEDOWN", HID_KEYBOARD_PAGE_DOWN},
{"PRINTSCREEN", HID_KEYBOARD_PRINT_SCREEN},
{"SCROLLLOCK", HID_KEYBOARD_SCROLL_LOCK},
{"SPACE", HID_KEYBOARD_SPACEBAR},
{"TAB", HID_KEYBOARD_TAB},
{"MENU", HID_KEYBOARD_APPLICATION},
{"APP", HID_KEYBOARD_APPLICATION},
{"F1", HID_KEYBOARD_F1},
{"F2", HID_KEYBOARD_F2},
{"F3", HID_KEYBOARD_F3},
{"F4", HID_KEYBOARD_F4},
{"F5", HID_KEYBOARD_F5},
{"F6", HID_KEYBOARD_F6},
{"F7", HID_KEYBOARD_F7},
{"F8", HID_KEYBOARD_F8},
{"F9", HID_KEYBOARD_F9},
{"F10", HID_KEYBOARD_F10},
{"F11", HID_KEYBOARD_F11},
{"F12", HID_KEYBOARD_F12},
};
static const char ducky_cmd_comment[] = {"REM"};
static const char ducky_cmd_id[] = {"ID"};
static const char ducky_cmd_delay[] = {"DELAY "};
static const char ducky_cmd_string[] = {"STRING "};
static const char ducky_cmd_defdelay_1[] = {"DEFAULT_DELAY "};
static const char ducky_cmd_defdelay_2[] = {"DEFAULTDELAY "};
static const char ducky_cmd_stringdelay_1[] = {"STRINGDELAY "};
static const char ducky_cmd_stringdelay_2[] = {"STRING_DELAY "};
static const char ducky_cmd_repeat[] = {"REPEAT "};
static const char ducky_cmd_sysrq[] = {"SYSRQ "};
static const char ducky_cmd_altchar[] = {"ALTCHAR "};
static const char ducky_cmd_altstr_1[] = {"ALTSTRING "};
static const char ducky_cmd_altstr_2[] = {"ALTCODE "};
static const char ducky_cmd_lang[] = {"DUCKY_LANG"};
static const uint8_t numpad_keys[10] = {
HID_KEYPAD_0,
HID_KEYPAD_1,
HID_KEYPAD_2,
HID_KEYPAD_3,
HID_KEYPAD_4,
HID_KEYPAD_5,
HID_KEYPAD_6,
HID_KEYPAD_7,
HID_KEYPAD_8,
HID_KEYPAD_9,
};
uint8_t bt_timeout = 0;
static LevelRssiRange bt_remote_rssi_range(Bt* bt) {
uint8_t rssi;
if(!bt_remote_rssi(bt, &rssi)) return LevelRssiError;
if(rssi <= 39)
return LevelRssi39_0;
else if(rssi <= 59)
return LevelRssi59_40;
else if(rssi <= 79)
return LevelRssi79_60;
else if(rssi <= 99)
return LevelRssi99_80;
else if(rssi <= 122)
return LevelRssi122_100;
return LevelRssiError;
}
static inline void update_bt_timeout(Bt* bt) {
LevelRssiRange r = bt_remote_rssi_range(bt);
if(r < LevelRssiNum) {
bt_timeout = bt_hid_delays[r];
FURI_LOG_D(WORKER_TAG, "BLE Key timeout : %u", bt_timeout);
}
}
static bool ducky_get_number(const char* param, uint32_t* val) {
uint32_t value = 0;
if(sscanf(param, "%lu", &value) == 1) {
*val = value;
return true;
}
return false;
}
static uint32_t ducky_get_command_len(const char* line) {
uint32_t len = strlen(line);
for(uint32_t i = 0; i < len; i++) {
if(line[i] == ' ') return i;
}
return 0;
}
static bool ducky_is_line_end(const char chr) {
return ((chr == ' ') || (chr == '\0') || (chr == '\r') || (chr == '\n'));
}
static void ducky_numlock_on(BadKbScript* bad_kb) {
if(bad_kb->bt) {
if((furi_hal_bt_hid_get_led_state() & HID_KB_LED_NUM) == 0) { // FIXME
furi_hal_bt_hid_kb_press(HID_KEYBOARD_LOCK_NUM_LOCK);
furi_delay_ms(bt_timeout);
furi_hal_bt_hid_kb_release(HID_KEYBOARD_LOCK_NUM_LOCK);
}
} else {
if((furi_hal_hid_get_led_state() & HID_KB_LED_NUM) == 0) {
furi_hal_hid_kb_press(HID_KEYBOARD_LOCK_NUM_LOCK);
furi_hal_hid_kb_release(HID_KEYBOARD_LOCK_NUM_LOCK);
}
}
}
static bool ducky_numpad_press(BadKbScript* bad_kb, const char num) {
if((num < '0') || (num > '9')) return false;
uint16_t key = numpad_keys[num - '0'];
if(bad_kb->bt) {
furi_hal_bt_hid_kb_press(key);
furi_delay_ms(bt_timeout);
furi_hal_bt_hid_kb_release(key);
} else {
furi_hal_hid_kb_press(key);
furi_hal_hid_kb_release(key);
}
return true;
}
static bool ducky_altchar(BadKbScript* bad_kb, const char* charcode) {
uint8_t i = 0;
bool state = false;
FURI_LOG_I(WORKER_TAG, "char %s", charcode);
if(bad_kb->bt) {
furi_hal_bt_hid_kb_press(KEY_MOD_LEFT_ALT);
} else {
furi_hal_hid_kb_press(KEY_MOD_LEFT_ALT);
}
while(!ducky_is_line_end(charcode[i])) {
state = ducky_numpad_press(bad_kb, charcode[i]);
if(state == false) break;
i++;
}
if(bad_kb->bt) {
furi_hal_bt_hid_kb_release(KEY_MOD_LEFT_ALT);
} else {
furi_hal_hid_kb_release(KEY_MOD_LEFT_ALT);
}
return state;
}
static bool ducky_altstring(BadKbScript* bad_kb, const char* param) {
uint32_t i = 0;
bool state = false;
while(param[i] != '\0') {
if((param[i] < ' ') || (param[i] > '~')) {
i++;
continue; // Skip non-printable chars
}
char temp_str[4];
snprintf(temp_str, 4, "%u", param[i]);
state = ducky_altchar(bad_kb, temp_str);
if(state == false) break;
i++;
}
return state;
}
static bool ducky_string(BadKbScript* bad_kb, const char* param) {
uint32_t i = 0;
while(param[i] != '\0') {
uint16_t keycode = BADKB_ASCII_TO_KEY(bad_kb, param[i]);
if(keycode != HID_KEYBOARD_NONE) {
if(bad_kb->bt) {
furi_hal_bt_hid_kb_press(keycode);
furi_delay_ms(bt_timeout);
furi_hal_bt_hid_kb_release(keycode);
} else {
furi_hal_hid_kb_press(keycode);
furi_hal_hid_kb_release(keycode);
}
if(bad_kb->stringdelay > 0) {
furi_delay_ms(bad_kb->stringdelay);
}
}
i++;
}
bad_kb->stringdelay = 0;
return true;
}
static uint16_t ducky_get_keycode(BadKbScript* bad_kb, const char* param, bool accept_chars) {
for(size_t i = 0; i < (sizeof(ducky_keys) / sizeof(ducky_keys[0])); i++) {
size_t key_cmd_len = strlen(ducky_keys[i].name);
if((strncmp(param, ducky_keys[i].name, key_cmd_len) == 0) &&
(ducky_is_line_end(param[key_cmd_len]))) {
return ducky_keys[i].keycode;
}
}
if((accept_chars) && (strlen(param) > 0)) {
return (BADKB_ASCII_TO_KEY(bad_kb, param[0]) & 0xFF);
}
return 0;
}
static int32_t
ducky_parse_line(BadKbScript* bad_kb, FuriString* line, char* error, size_t error_len) {
uint32_t line_len = furi_string_size(line);
const char* line_tmp = furi_string_get_cstr(line);
bool state = false;
if(line_len == 0) {
return SCRIPT_STATE_NEXT_LINE; // Skip empty lines
}
FURI_LOG_D(WORKER_TAG, "line:%s", line_tmp);
// General commands
if(strncmp(line_tmp, ducky_cmd_comment, strlen(ducky_cmd_comment)) == 0) {
// REM - comment line
return (0);
} else if(strncmp(line_tmp, ducky_cmd_id, strlen(ducky_cmd_id)) == 0) {
// ID - executed in ducky_script_preload
return (0);
} else if(strncmp(line_tmp, ducky_cmd_lang, strlen(ducky_cmd_lang)) == 0) {
// DUCKY_LANG - ignore command to retain compatibility with existing scripts
return (0);
} else if(strncmp(line_tmp, ducky_cmd_delay, strlen(ducky_cmd_delay)) == 0) {
// DELAY
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
uint32_t delay_val = 0;
state = ducky_get_number(line_tmp, &delay_val);
if((state) && (delay_val > 0)) {
return (int32_t)delay_val;
}
if(error != NULL) {
snprintf(error, error_len, "Invalid number %s", line_tmp);
}
return SCRIPT_STATE_ERROR;
} else if(
(strncmp(line_tmp, ducky_cmd_defdelay_1, strlen(ducky_cmd_defdelay_1)) == 0) ||
(strncmp(line_tmp, ducky_cmd_defdelay_2, strlen(ducky_cmd_defdelay_2)) == 0)) {
// DEFAULT_DELAY
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
state = ducky_get_number(line_tmp, &bad_kb->defdelay);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid number %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(
(strncmp(line_tmp, ducky_cmd_stringdelay_1, strlen(ducky_cmd_stringdelay_1)) == 0) ||
(strncmp(line_tmp, ducky_cmd_stringdelay_2, strlen(ducky_cmd_stringdelay_2)) == 0)) {
//STRINGDELAY, finally it's here
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
state = ducky_get_number(line_tmp, &bad_kb->stringdelay);
if((state) && (bad_kb->stringdelay > 0)) {
return state;
}
if(error != NULL) {
snprintf(error, error_len, "Invalid number %s", line_tmp);
}
return SCRIPT_STATE_ERROR;
} else if(strncmp(line_tmp, ducky_cmd_string, strlen(ducky_cmd_string)) == 0) {
// STRING
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
state = ducky_string(bad_kb, line_tmp);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid string %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(strncmp(line_tmp, ducky_cmd_altchar, strlen(ducky_cmd_altchar)) == 0) {
// ALTCHAR
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
ducky_numlock_on(bad_kb);
state = ducky_altchar(bad_kb, line_tmp);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid altchar %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(
(strncmp(line_tmp, ducky_cmd_altstr_1, strlen(ducky_cmd_altstr_1)) == 0) ||
(strncmp(line_tmp, ducky_cmd_altstr_2, strlen(ducky_cmd_altstr_2)) == 0)) {
// ALTSTRING
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
ducky_numlock_on(bad_kb);
state = ducky_altstring(bad_kb, line_tmp);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid altstring %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(strncmp(line_tmp, ducky_cmd_repeat, strlen(ducky_cmd_repeat)) == 0) {
// REPEAT
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
state = ducky_get_number(line_tmp, &bad_kb->repeat_cnt);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid number %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(strncmp(line_tmp, ducky_cmd_sysrq, strlen(ducky_cmd_sysrq)) == 0) {
// SYSRQ
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
uint16_t key = ducky_get_keycode(bad_kb, line_tmp, true);
if(bad_kb->bt) {
furi_hal_bt_hid_kb_press(KEY_MOD_LEFT_ALT | HID_KEYBOARD_PRINT_SCREEN);
furi_hal_bt_hid_kb_press(key);
furi_delay_ms(bt_timeout);
furi_hal_bt_hid_kb_release(key);
furi_hal_bt_hid_kb_release(KEY_MOD_LEFT_ALT | HID_KEYBOARD_PRINT_SCREEN);
} else {
furi_hal_hid_kb_press(KEY_MOD_LEFT_ALT | HID_KEYBOARD_PRINT_SCREEN);
furi_hal_hid_kb_press(key);
furi_hal_hid_kb_release_all();
}
return (0);
} else {
// Special keys + modifiers
uint16_t key = ducky_get_keycode(bad_kb, line_tmp, false);
if(key == HID_KEYBOARD_NONE) {
if(error != NULL) {
snprintf(error, error_len, "No keycode defined for %s", line_tmp);
}
return SCRIPT_STATE_ERROR;
}
if((key & 0xFF00) != 0) {
// It's a modifier key
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
key |= ducky_get_keycode(bad_kb, line_tmp, true);
}
if(bad_kb->bt) {
furi_hal_bt_hid_kb_press(key);
furi_delay_ms(bt_timeout);
furi_hal_bt_hid_kb_release(key);
} else {
furi_hal_hid_kb_press(key);
furi_hal_hid_kb_release(key);
}
return (0);
}
}
static bool ducky_set_usb_id(BadKbScript* bad_kb, const char* line) {
if(sscanf(line, "%lX:%lX", &bad_kb->hid_cfg.vid, &bad_kb->hid_cfg.pid) == 2) {
bad_kb->hid_cfg.manuf[0] = '\0';
bad_kb->hid_cfg.product[0] = '\0';
uint8_t id_len = ducky_get_command_len(line);
if(!ducky_is_line_end(line[id_len + 1])) {
sscanf(
&line[id_len + 1],
"%31[^\r\n:]:%31[^\r\n]",
bad_kb->hid_cfg.manuf,
bad_kb->hid_cfg.product);
}
FURI_LOG_D(
WORKER_TAG,
"set id: %04lX:%04lX mfr:%s product:%s",
bad_kb->hid_cfg.vid,
bad_kb->hid_cfg.pid,
bad_kb->hid_cfg.manuf,
bad_kb->hid_cfg.product);
return true;
}
return false;
}
static bool ducky_script_preload(BadKbScript* bad_kb, File* script_file) {
uint8_t ret = 0;
uint32_t line_len = 0;
furi_string_reset(bad_kb->line);
do {
ret = storage_file_read(script_file, bad_kb->file_buf, FILE_BUFFER_LEN);
for(uint16_t i = 0; i < ret; i++) {
if(bad_kb->file_buf[i] == '\n' && line_len > 0) {
bad_kb->st.line_nb++;
line_len = 0;
} else {
if(bad_kb->st.line_nb == 0) { // Save first line
furi_string_push_back(bad_kb->line, bad_kb->file_buf[i]);
}
line_len++;
}
}
if(storage_file_eof(script_file)) {
if(line_len > 0) {
bad_kb->st.line_nb++;
break;
}
}
} while(ret > 0);
if(!bad_kb->bt) {
const char* line_tmp = furi_string_get_cstr(bad_kb->line);
bool id_set = false; // Looking for ID command at first line
if(strncmp(line_tmp, ducky_cmd_id, strlen(ducky_cmd_id)) == 0) {
id_set = ducky_set_usb_id(bad_kb, &line_tmp[strlen(ducky_cmd_id) + 1]);
}
if(id_set) {
furi_check(furi_hal_usb_set_config(&usb_hid, &bad_kb->hid_cfg));
} else {
furi_check(furi_hal_usb_set_config(&usb_hid, NULL));
}
}
storage_file_seek(script_file, 0, true);
furi_string_reset(bad_kb->line);
return true;
}
static int32_t ducky_script_execute_next(BadKbScript* bad_kb, File* script_file) {
int32_t delay_val = 0;
if(bad_kb->repeat_cnt > 0) {
bad_kb->repeat_cnt--;
delay_val = ducky_parse_line(
bad_kb, bad_kb->line_prev, bad_kb->st.error, sizeof(bad_kb->st.error));
if(delay_val == SCRIPT_STATE_NEXT_LINE) { // Empty line
return 0;
} else if(delay_val < 0) { // Script error
bad_kb->st.error_line = bad_kb->st.line_cur - 1;
FURI_LOG_E(WORKER_TAG, "Unknown command at line %u", bad_kb->st.line_cur - 1U);
return SCRIPT_STATE_ERROR;
} else {
return (delay_val + bad_kb->defdelay);
}
}
furi_string_set(bad_kb->line_prev, bad_kb->line);
furi_string_reset(bad_kb->line);
while(1) {
if(bad_kb->buf_len == 0) {
bad_kb->buf_len = storage_file_read(script_file, bad_kb->file_buf, FILE_BUFFER_LEN);
if(storage_file_eof(script_file)) {
if((bad_kb->buf_len < FILE_BUFFER_LEN) && (bad_kb->file_end == false)) {
bad_kb->file_buf[bad_kb->buf_len] = '\n';
bad_kb->buf_len++;
bad_kb->file_end = true;
}
}
bad_kb->buf_start = 0;
if(bad_kb->buf_len == 0) return SCRIPT_STATE_END;
}
for(uint8_t i = bad_kb->buf_start; i < (bad_kb->buf_start + bad_kb->buf_len); i++) {
if(bad_kb->file_buf[i] == '\n' && furi_string_size(bad_kb->line) > 0) {
bad_kb->st.line_cur++;
bad_kb->buf_len = bad_kb->buf_len + bad_kb->buf_start - (i + 1);
bad_kb->buf_start = i + 1;
furi_string_trim(bad_kb->line);
delay_val = ducky_parse_line(
bad_kb, bad_kb->line, bad_kb->st.error, sizeof(bad_kb->st.error));
if(delay_val == SCRIPT_STATE_NEXT_LINE) { // Empty line
return 0;
} else if(delay_val < 0) {
bad_kb->st.error_line = bad_kb->st.line_cur;
if(delay_val == SCRIPT_STATE_NEXT_LINE) {
snprintf(
bad_kb->st.error, sizeof(bad_kb->st.error), "Forbidden empty line");
FURI_LOG_E(
WORKER_TAG, "Forbidden empty line at line %u", bad_kb->st.line_cur);
} else {
FURI_LOG_E(WORKER_TAG, "Unknown command at line %u", bad_kb->st.line_cur);
}
return SCRIPT_STATE_ERROR;
} else {
return (delay_val + bad_kb->defdelay);
}
} else {
furi_string_push_back(bad_kb->line, bad_kb->file_buf[i]);
}
}
bad_kb->buf_len = 0;
if(bad_kb->file_end) return SCRIPT_STATE_END;
}
}
static void bad_kb_bt_hid_state_callback(BtStatus status, void* context) {
furi_assert(context);
BadKbScript* bad_kb = (BadKbScript*)context;
bool state = (status == BtStatusConnected);
if(state == true) {
LevelRssiRange r = bt_remote_rssi_range(bad_kb->bt);
if(r != LevelRssiError) {
bt_timeout = bt_hid_delays[r];
}
furi_thread_flags_set(furi_thread_get_id(bad_kb->thread), WorkerEvtConnect);
} else {
furi_thread_flags_set(furi_thread_get_id(bad_kb->thread), WorkerEvtDisconnect);
}
}
static void bad_kb_usb_hid_state_callback(bool state, void* context) {
furi_assert(context);
BadKbScript* bad_kb = context;
if(state == true) {
furi_thread_flags_set(furi_thread_get_id(bad_kb->thread), WorkerEvtConnect);
} else {
furi_thread_flags_set(furi_thread_get_id(bad_kb->thread), WorkerEvtDisconnect);
}
}
void bad_kb_reload_worker(BadKbApp* app) {
bad_kb_script_close(app->bad_kb_script);
app->bad_kb_script = bad_kb_script_open(app->file_path, app->is_bt ? app->bt : NULL);
bad_kb_script_set_keyboard_layout(app->bad_kb_script, app->keyboard_layout);
}
void bad_kb_config_switch_mode(BadKbApp* app) {
scene_manager_previous_scene(app->scene_manager);
if(app->is_bt) {
furi_hal_bt_start_advertising();
scene_manager_next_scene(app->scene_manager, BadKbSceneConfigBt);
} else {
furi_hal_bt_stop_advertising();
scene_manager_next_scene(app->scene_manager, BadKbSceneConfigUsb);
}
bad_kb_reload_worker(app);
}
void bad_kb_config_switch_remember_mode(BadKbApp* app) {
if(app->bt_remember) {
// set bouding mac
uint8_t mac[6] = BAD_KB_BOUND_MAC_ADDRESS;
furi_hal_bt_set_profile_pairing_method(
FuriHalBtProfileHidKeyboard, GapPairingPinCodeVerifyYesNo);
bt_set_profile_mac_address(app->bt, mac); // this also restart bt
// enable keys storage
bt_enable_peer_key_update(app->bt);
} else {
// set back user defined mac address
furi_hal_bt_set_profile_pairing_method(FuriHalBtProfileHidKeyboard, GapPairingNone);
bt_set_profile_mac_address(app->bt, app->mac);
// disable key storage
bt_disable_peer_key_update(app->bt);
}
bad_kb_reload_worker(app);
}
int32_t bad_kb_connection_init(BadKbApp* app) {
app->usb_prev_mode = furi_hal_usb_get_config();
furi_hal_usb_set_config(NULL, NULL);
bt_timeout = bt_hid_delays[LevelRssi39_0];
bt_disconnect(app->bt);
// furi_delay_ms(200);
bt_keys_storage_set_storage_path(app->bt, BAD_KB_APP_PATH_BOUND_KEYS_FILE);
app->bt_prev_mode = furi_hal_bt_get_profile_pairing_method(FuriHalBtProfileHidKeyboard);
if(app->bt_remember) {
uint8_t mac[6] = BAD_KB_BOUND_MAC_ADDRESS;
furi_hal_bt_set_profile_mac_addr(FuriHalBtProfileHidKeyboard, mac);
// using GapPairingNone breaks bounding between devices
furi_hal_bt_set_profile_pairing_method(
FuriHalBtProfileHidKeyboard, GapPairingPinCodeVerifyYesNo);
} else {
furi_hal_bt_set_profile_pairing_method(FuriHalBtProfileHidKeyboard, GapPairingNone);
}
bt_set_profile(app->bt, BtProfileHidKeyboard);
if(app->is_bt) {
furi_hal_bt_start_advertising();
if(app->bt_remember) {
bt_enable_peer_key_update(app->bt);
} else {
bt_disable_peer_key_update(app->bt); // disable peer key adding to bt SRAM storage
}
} else {
furi_hal_bt_stop_advertising();
}
app->connection_init = true;
return 0;
}
void bad_kb_connection_deinit(BadKbApp* app) {
if(!app->connection_init) return;
furi_hal_usb_set_config(app->usb_prev_mode, NULL);
// bt_hid_hold_while_keyboard_buffer_full(6, 3000); // release all keys
bt_disconnect(app->bt); // stop ble
// furi_delay_ms(200); // Wait 2nd core to update nvm storage
bt_keys_storage_set_default_path(app->bt);
if(app->bt_remember) {
// hal primitives doesn't restarts ble, that's what we want cuz we are shutting down
furi_hal_bt_set_profile_mac_addr(FuriHalBtProfileHidKeyboard, app->mac);
}
bt_enable_peer_key_update(app->bt); // starts saving peer keys (bounded devices)
// fails if ble radio stack isn't ready when switching profile
// if it happens, maybe we should increase the delay after bt_disconnect
bt_set_profile(app->bt, BtProfileSerial);
furi_hal_bt_set_profile_pairing_method(FuriHalBtProfileHidKeyboard, app->bt_prev_mode);
}
static uint32_t bad_kb_flags_get(uint32_t flags_mask, uint32_t timeout) {
uint32_t flags = furi_thread_flags_get();
furi_check((flags & FuriFlagError) == 0);
if(flags == 0) {
flags = furi_thread_flags_wait(flags_mask, FuriFlagWaitAny, timeout);
furi_check(((flags & FuriFlagError) == 0) || (flags == (unsigned)FuriFlagErrorTimeout));
} else {
uint32_t state = furi_thread_flags_clear(flags);
furi_check((state & FuriFlagError) == 0);
}
return flags;
}
static int32_t bad_kb_worker(void* context) {
BadKbScript* bad_kb = context;
BadKbWorkerState worker_state = BadKbStateInit;
int32_t delay_val = 0;
if(bad_kb->bt) {
bt_set_status_changed_callback(bad_kb->bt, bad_kb_bt_hid_state_callback, bad_kb);
} else {
furi_hal_hid_set_state_callback(bad_kb_usb_hid_state_callback, bad_kb);
}
FURI_LOG_I(WORKER_TAG, "Init");
File* script_file = storage_file_alloc(furi_record_open(RECORD_STORAGE));
bad_kb->line = furi_string_alloc();
bad_kb->line_prev = furi_string_alloc();
while(1) {
if(worker_state == BadKbStateInit) { // State: initialization
if(storage_file_open(
script_file,
furi_string_get_cstr(bad_kb->file_path),
FSAM_READ,
FSOM_OPEN_EXISTING)) {
if((ducky_script_preload(bad_kb, script_file)) && (bad_kb->st.line_nb > 0)) {
if(bad_kb->bt) {
if(furi_hal_bt_is_connected()) {
worker_state = BadKbStateIdle; // Ready to run
} else {
worker_state = BadKbStateNotConnected; // Not connected
}
} else {
if(furi_hal_hid_is_connected()) {
worker_state = BadKbStateIdle; // Ready to run
} else {
worker_state = BadKbStateNotConnected; // Not connected
}
}
} else {
worker_state = BadKbStateScriptError; // Script preload error
}
} else {
FURI_LOG_E(WORKER_TAG, "File open error");
worker_state = BadKbStateFileError; // File open error
}
bad_kb->st.state = worker_state;
} else if(worker_state == BadKbStateNotConnected) { // State: Not connected
uint32_t flags = bad_kb_flags_get(
WorkerEvtEnd | WorkerEvtConnect | WorkerEvtToggle, FuriWaitForever);
if(flags & WorkerEvtEnd) {
break;
} else if(flags & WorkerEvtConnect) {
worker_state = BadKbStateIdle; // Ready to run
} else if(flags & WorkerEvtToggle) {
worker_state = BadKbStateWillRun; // Will run when connected
}
bad_kb->st.state = worker_state;
} else if(worker_state == BadKbStateIdle) { // State: ready to start
uint32_t flags = bad_kb_flags_get(
WorkerEvtEnd | WorkerEvtToggle | WorkerEvtDisconnect, FuriWaitForever);
if(flags & WorkerEvtEnd) {
break;
} else if(flags & WorkerEvtToggle) { // Start executing script
DOLPHIN_DEED(DolphinDeedBadKbPlayScript);
delay_val = 0;
bad_kb->buf_len = 0;
bad_kb->st.line_cur = 0;
bad_kb->defdelay = 0;
bad_kb->stringdelay = 0;
bad_kb->repeat_cnt = 0;
bad_kb->file_end = false;
storage_file_seek(script_file, 0, true);
bad_kb_script_set_keyboard_layout(bad_kb, bad_kb->keyboard_layout);
worker_state = BadKbStateRunning;
} else if(flags & WorkerEvtDisconnect) {
worker_state = BadKbStateNotConnected; // Disconnected
}
bad_kb->st.state = worker_state;
} else if(worker_state == BadKbStateWillRun) { // State: start on connection
uint32_t flags = bad_kb_flags_get(
WorkerEvtEnd | WorkerEvtConnect | WorkerEvtToggle, FuriWaitForever);
if(flags & WorkerEvtEnd) {
break;
} else if(flags & WorkerEvtConnect) { // Start executing script
DOLPHIN_DEED(DolphinDeedBadKbPlayScript);
delay_val = 0;
bad_kb->buf_len = 0;
bad_kb->st.line_cur = 0;
bad_kb->defdelay = 0;
bad_kb->stringdelay = 0;
bad_kb->repeat_cnt = 0;
bad_kb->file_end = false;
storage_file_seek(script_file, 0, true);
// extra time for PC to recognize Flipper as keyboard
flags = furi_thread_flags_wait(
WorkerEvtEnd | WorkerEvtDisconnect | WorkerEvtToggle,
FuriFlagWaitAny | FuriFlagNoClear,
1500);
if(flags == (unsigned)FuriFlagErrorTimeout) {
// If nothing happened - start script execution
worker_state = BadKbStateRunning;
} else if(flags & WorkerEvtToggle) {
worker_state = BadKbStateIdle;
furi_thread_flags_clear(WorkerEvtToggle);
}
if(bad_kb->bt) {
update_bt_timeout(bad_kb->bt);
}
bad_kb_script_set_keyboard_layout(bad_kb, bad_kb->keyboard_layout);
} else if(flags & WorkerEvtToggle) { // Cancel scheduled execution
worker_state = BadKbStateNotConnected;
}
bad_kb->st.state = worker_state;
} else if(worker_state == BadKbStateRunning) { // State: running
uint16_t delay_cur = (delay_val > 1000) ? (1000) : (delay_val);
uint32_t flags = furi_thread_flags_wait(
WorkerEvtEnd | WorkerEvtToggle | WorkerEvtDisconnect, FuriFlagWaitAny, delay_cur);
delay_val -= delay_cur;
if(!(flags & FuriFlagError)) {
if(flags & WorkerEvtEnd) {
break;
} else if(flags & WorkerEvtToggle) {
worker_state = BadKbStateIdle; // Stop executing script
if(bad_kb->bt) {
furi_hal_bt_hid_kb_release_all();
} else {
furi_hal_hid_kb_release_all();
}
} else if(flags & WorkerEvtDisconnect) {
worker_state = BadKbStateNotConnected; // Disconnected
if(bad_kb->bt) {
furi_hal_bt_hid_kb_release_all();
} else {
furi_hal_hid_kb_release_all();
}
}
bad_kb->st.state = worker_state;
continue;
} else if(
(flags == (unsigned)FuriFlagErrorTimeout) ||
(flags == (unsigned)FuriFlagErrorResource)) {
if(delay_val > 0) {
bad_kb->st.delay_remain--;
continue;
}
bad_kb->st.state = BadKbStateRunning;
delay_val = ducky_script_execute_next(bad_kb, script_file);
if(delay_val == SCRIPT_STATE_ERROR) { // Script error
delay_val = 0;
worker_state = BadKbStateScriptError;
bad_kb->st.state = worker_state;
} else if(delay_val == SCRIPT_STATE_END) { // End of script
delay_val = 0;
worker_state = BadKbStateIdle;
bad_kb->st.state = BadKbStateDone;
if(bad_kb->bt) {
furi_hal_bt_hid_kb_release_all();
} else {
furi_hal_hid_kb_release_all();
}
continue;
} else if(delay_val > 1000) {
bad_kb->st.state = BadKbStateDelay; // Show long delays
bad_kb->st.delay_remain = delay_val / 1000;
}
} else {
furi_check((flags & FuriFlagError) == 0);
}
} else if(
(worker_state == BadKbStateFileError) ||
(worker_state == BadKbStateScriptError)) { // State: error
uint32_t flags =
bad_kb_flags_get(WorkerEvtEnd, FuriWaitForever); // Waiting for exit command
if(flags & WorkerEvtEnd) {
break;
}
}
if(bad_kb->bt) {
update_bt_timeout(bad_kb->bt);
}
}
if(bad_kb->bt) {
bt_set_status_changed_callback(bad_kb->bt, NULL, NULL);
} else {
furi_hal_hid_set_state_callback(NULL, NULL);
}
storage_file_close(script_file);
storage_file_free(script_file);
furi_string_free(bad_kb->line);
furi_string_free(bad_kb->line_prev);
FURI_LOG_I(WORKER_TAG, "End");
return 0;
}
static void bad_kb_script_set_default_keyboard_layout(BadKbScript* bad_kb) {
furi_assert(bad_kb);
furi_string_set_str(bad_kb->keyboard_layout, "");
memset(bad_kb->layout, HID_KEYBOARD_NONE, sizeof(bad_kb->layout));
memcpy(bad_kb->layout, hid_asciimap, MIN(sizeof(hid_asciimap), sizeof(bad_kb->layout)));
}
BadKbScript* bad_kb_script_open(FuriString* file_path, Bt* bt) {
furi_assert(file_path);
BadKbScript* bad_kb = malloc(sizeof(BadKbScript));
bad_kb->file_path = furi_string_alloc();
furi_string_set(bad_kb->file_path, file_path);
bad_kb->keyboard_layout = furi_string_alloc();
bad_kb_script_set_default_keyboard_layout(bad_kb);
bad_kb->st.state = BadKbStateInit;
bad_kb->st.error[0] = '\0';
bad_kb->st.is_bt = !!bt;
bad_kb->bt = bt;
bad_kb->thread = furi_thread_alloc_ex("BadKbWorker", 2048, bad_kb_worker, bad_kb);
furi_thread_start(bad_kb->thread);
return bad_kb;
} //-V773
void bad_kb_script_close(BadKbScript* bad_kb) {
furi_assert(bad_kb);
furi_record_close(RECORD_STORAGE);
furi_thread_flags_set(furi_thread_get_id(bad_kb->thread), WorkerEvtEnd);
furi_thread_join(bad_kb->thread);
furi_thread_free(bad_kb->thread);
furi_string_free(bad_kb->file_path);
furi_string_free(bad_kb->keyboard_layout);
free(bad_kb);
}
void bad_kb_script_set_keyboard_layout(BadKbScript* bad_kb, FuriString* layout_path) {
furi_assert(bad_kb);
if((bad_kb->st.state == BadKbStateRunning) || (bad_kb->st.state == BadKbStateDelay)) {
// do not update keyboard layout while a script is running
return;
}
File* layout_file = storage_file_alloc(furi_record_open(RECORD_STORAGE));
if(!furi_string_empty(layout_path)) { //-V1051
furi_string_set(bad_kb->keyboard_layout, layout_path);
if(storage_file_open(
layout_file, furi_string_get_cstr(layout_path), FSAM_READ, FSOM_OPEN_EXISTING)) {
uint16_t layout[128];
if(storage_file_read(layout_file, layout, sizeof(layout)) == sizeof(layout)) {
memcpy(bad_kb->layout, layout, sizeof(layout));
}
}
storage_file_close(layout_file);
} else {
bad_kb_script_set_default_keyboard_layout(bad_kb);
}
storage_file_free(layout_file);
}
void bad_kb_script_toggle(BadKbScript* bad_kb) {
furi_assert(bad_kb);
furi_thread_flags_set(furi_thread_get_id(bad_kb->thread), WorkerEvtToggle);
}
BadKbState* bad_kb_script_get_state(BadKbScript* bad_kb) {
furi_assert(bad_kb);
return &(bad_kb->st);
}
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