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BadUsb: STRINGDELAY feature, worker signal handling refactoring #2269

Merged
merged 20 commits into from
Feb 25, 2023
Merged

BadUsb: STRINGDELAY feature, worker signal handling refactoring #2269

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af11d40
BadUsb: Added stringdelay feature
n30f0x Jan 7, 2023
8817146
BadUsb: added stringdelay feature, fixed delay
n30f0x Jan 7, 2023
973233e
BadUsb: fix cursed delay structure
n30f0x Jan 7, 2023
58eda97
Merge branch 'dev' into badusb_stringdelay_feature
n30f0x Jan 7, 2023
b0d739f
BadUsb: long delay check added
n30f0x Jan 11, 2023
fe934b4
BadUsb: long delay distribution
n30f0x Jan 13, 2023
a5947f4
furi_delay_ms(0) edgecase fix, add documentation entry
n30f0x Jan 31, 2023
e2c9e59
additional documentation entry
n30f0x Jan 31, 2023
73e3083
Merge branch 'dev' into badusb_stringdelay_feature
n30f0x Jan 31, 2023
d9f5e61
Merge branch 'dev' into badusb_stringdelay_feature
skotopes Feb 8, 2023
64cdcd1
Format sources
skotopes Feb 8, 2023
46d44af
BadUsb: get rid of bad logic, fixed documentation
n30f0x Feb 9, 2023
667cdc6
fix format
n30f0x Feb 9, 2023
cbd53ff
Merge remote-tracking branch 'origin/dev' into badusb_stringdelay_fea…
skotopes Feb 17, 2023
611af26
Merge branch 'dev' into badusb_stringdelay_feature
skotopes Feb 17, 2023
ae0254f
BadUSB script: fix events handling
nminaylov Feb 21, 2023
ca94215
Delay value fix
nminaylov Feb 21, 2023
22300de
Script execution fix
nminaylov Feb 21, 2023
06ec37e
Merge branch 'dev' into badusb_stringdelay_feature
n30f0x Feb 24, 2023
6e37abd
Merge branch 'dev' into badusb_stringdelay_feature
skotopes Feb 25, 2023
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38 changes: 35 additions & 3 deletions applications/main/bad_usb/bad_usb_script.c
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ struct BadUsbScript {
BadUsbState st;
FuriString* file_path;
uint32_t defdelay;
uint32_t stringdelay;
FuriThread* thread;
uint8_t file_buf[FILE_BUFFER_LEN + 1];
uint8_t buf_start;
Expand Down Expand Up @@ -108,6 +109,8 @@ 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 "};
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static const char ducky_cmd_stringdelay_2[] = {"STRING_DELAY "};
static const char ducky_cmd_repeat[] = {"REPEAT "};
static const char ducky_cmd_sysrq[] = {"SYSRQ "};

Expand Down Expand Up @@ -204,16 +207,29 @@ static bool ducky_altstring(const char* param) {
return state;
}

static bool ducky_string(const char* param) {
static bool ducky_string(BadUsbScript* bad_usb, const char* param) {
uint32_t i = 0;
uint32_t timing = 0;

if(bad_usb->stringdelay == 0) {
timing = 0;
} else if(bad_usb->stringdelay > 1000) {
timing = bad_usb->stringdelay / 2 / 10;
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} else {
timing = bad_usb->stringdelay / 2;
}

while(param[i] != '\0') {
uint16_t keycode = HID_ASCII_TO_KEY(param[i]);
if(keycode != HID_KEYBOARD_NONE) {
furi_delay_ms(timing);
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furi_hal_hid_kb_press(keycode);
furi_delay_ms(timing);
furi_hal_hid_kb_release(keycode);
}
i++;
}
bad_usb->stringdelay = 0;
return true;
}

Expand Down Expand Up @@ -272,10 +288,24 @@ static int32_t
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_usb->stringdelay);
if((state) && (bad_usb->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(line_tmp);
state = ducky_string(bad_usb, line_tmp);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid string %s", line_tmp);
}
Expand Down Expand Up @@ -545,6 +575,7 @@ static int32_t bad_usb_worker(void* context) {
bad_usb->buf_len = 0;
bad_usb->st.line_cur = 0;
bad_usb->defdelay = 0;
bad_usb->stringdelay = 0;
bad_usb->repeat_cnt = 0;
bad_usb->file_end = false;
storage_file_seek(script_file, 0, true);
Expand All @@ -568,11 +599,12 @@ static int32_t bad_usb_worker(void* context) {
bad_usb->buf_len = 0;
bad_usb->st.line_cur = 0;
bad_usb->defdelay = 0;
bad_usb->stringdelay = 0;
bad_usb->repeat_cnt = 0;
bad_usb->file_end = false;
storage_file_seek(script_file, 0, true);
// extra time for PC to recognize Flipper as keyboard
furi_thread_flags_wait(0, FuriFlagWaitAny, 1500);
furi_delay_ms(1500);
worker_state = BadUsbStateRunning;
} else if(flags & WorkerEvtToggle) { // Cancel scheduled execution
worker_state = BadUsbStateNotConnected;
Expand Down