BadUSB: add SYSRQ keys (#1460)
This allows sending of SysRq keys[1]. This then for example allows sending the well known 'reisub' commands to safely reboot a otherwise frozen Linux box. Or obviously any of the other magic keys. The advantage compared to sending it to /proc/sysrq-trigger is that one does not need a shell and depending on how broken the system is, one might not even be able to get a new shell. The SysRq keys still work. The cost is adding a new/"non-standard" keyword, IMO it is worth it. Example: DEFAULTDELAY 200 DELAY 1000 SYSRQ r SYSRQ e SYSRQ i SYSRQ s SYSRQ u SYSRQ b If one really wants to test it, I suggest h(elp) or w(ait). [1] https://en.wikipedia.org/wiki/Magic_SysRq_key Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
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@ -109,6 +109,7 @@ static const char ducky_cmd_string[] = {"STRING "};
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static const char ducky_cmd_defdelay_1[] = {"DEFAULT_DELAY "};
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static const char ducky_cmd_defdelay_2[] = {"DEFAULTDELAY "};
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static const char ducky_cmd_repeat[] = {"REPEAT "};
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static const char ducky_cmd_sysrq[] = {"SYSRQ "};
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static const char ducky_cmd_altchar[] = {"ALTCHAR "};
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static const char ducky_cmd_altstr_1[] = {"ALTSTRING "};
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@ -292,6 +293,14 @@ static int32_t ducky_parse_line(BadUsbScript* bad_usb, FuriString* line) {
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line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
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state = ducky_get_number(line_tmp, &bad_usb->repeat_cnt);
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return (state) ? (0) : SCRIPT_STATE_ERROR;
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} else if(strncmp(line_tmp, ducky_cmd_sysrq, strlen(ducky_cmd_sysrq)) == 0) {
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// SYSRQ
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line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
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uint16_t key = ducky_get_keycode(line_tmp, true);
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furi_hal_hid_kb_press(KEY_MOD_LEFT_ALT | HID_KEYBOARD_PRINT_SCREEN);
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furi_hal_hid_kb_press(key);
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furi_hal_hid_kb_release_all();
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return (0);
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} else {
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// Special keys + modifiers
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uint16_t key = ducky_get_keycode(line_tmp, false);
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