feat: only allow flash when target matches (#4770)

radio/src/targets/taranis/bootloader/boot_menu.cpp

@@ -52,6 +52,19 @@ void bootloaderDrawFilename(const char *str, uint8_t line, bool selected)
   bootloaderDrawMsg(INDENT_WIDTH, str, line, selected);
 }
 
+bool checkFirmwareFlavor(const char * vers)
+{
+  if (strncmp(vers,FLAVOUR, sizeof(FLAVOUR) - 1) != 0)
+    return false;
+
+  char * tmp = (char *) vers;
+  while (*tmp != '-') tmp++;
+  if ((tmp - vers) != (sizeof(FLAVOUR) - 1))
+    return false;
+
+  return true;
+}
+
 void bootloaderDrawScreen(BootloaderState st, int opt, const char *str)
 {
   lcdClear();
@@ -98,16 +111,24 @@ void bootloaderDrawScreen(BootloaderState st, int opt, const char *str)
         bootloaderDrawMsg(0, TR_BL_INVALID_EEPROM, 2, false);
     }
     else if (opt == FC_OK) {
+      bool flavorCheck = false;
       if (memoryType == MEM_FLASH) {
         const char * vers = getFirmwareVersion((const char *)Block_buffer);
 #if LCD_W < 212
         // Remove "edgetx-" from string
         if (strncmp(vers, "edgetx-", 7) == 0)
           vers += 7;
+        flavorCheck = checkFirmwareFlavor(vers);
+#else
+        flavorCheck = checkFirmwareFlavor(vers + 7);
 #endif
+
         bootloaderDrawMsg(INDENT_WIDTH, vers, 0, false);
       }
-      bootloaderDrawMsg(0, TR_BL_HOLD_ENTER_TO_START, 2, false);
+      if (flavorCheck)
+        bootloaderDrawMsg(0, TR_BL_HOLD_ENTER_TO_START, 2, false);
+      else
+        bootloaderDrawMsg(0, TR_BL_INVALID_FIRMWARE, 2, false);
     }
   }
   else if (st == ST_FLASHING) {