btmgmt_protocol: Fix unhandled exception when decoding EIRData

ValueError: 0 is not a valid ADType

Signed-off-by: Martin Flaska <extern-mfl@mission-embedded.com>

Author: martin-flaska

btsocket/btmgmt_protocol.py

@@ -194,7 +194,11 @@ def decode(self, data):
             data_type = data[pointer + 1]
             data_start = pointer + 2
             data_end = data_start + len_data - 1
-            self.value[ADType(data_type)] = data[data_start:data_end]
+            try:
+                self.value[ADType(data_type)] = data[data_start:data_end]
+            except ValueError as ex:
+                raise ValueError(f"EIRData.decode: Invalid ADType: 0x{data_type:02x}, "
+                                 f"data len: {len(data)}, data: {data[pointer:].hex(' ')}") from ex
             pointer += data[pointer] + 1
 
     def encode(self, value, width):
@@ -235,8 +239,14 @@ def decode(self, pkt):
             for index in range(repeated):
                 class_ = getattr(current_module, param.bt_type)
                 data_type = class_()
-                data_type.decode(pkt[pointer:pointer + param.width])
-                self._add_to_value(param, data_type.value)
+                try:
+                    data_type.decode(pkt[pointer:pointer + param.width])
+                    self._add_to_value(param, data_type.value)
+                except ValueError as ex:
+                    logger.error(
+                        f"Packet.decode: failed to decode {param.name} as {param.bt_type}. "
+                        f"Offset: {pointer}, width: {param.width}, pkt: {pkt.hex(' ')}. Error: {ex}"
+                    )
                 pointer += param.width
         if pointer < len(pkt):
             # self.value['parameters'] = pkt[pointer:]