Update ticket length constants to support legacy UDS

Author: dkmstr

src/UDSClient.py

@@ -418,7 +418,7 @@ def parse_arguments(args: typing.List[str]) -> typing.Tuple[str, str, str, bool]
         raise exceptions.MessageException('Not supported protocol')  # Just shows "about" dialog
 
     # If ticket length is not valid
-    if len(ticket) != consts.TICKET_LENGTH:
+    if len(ticket) not in  (consts.TICKET_LENGTH, consts.LEGACY_TICKET_LENGTH):
         raise exceptions.MessageException(f'Invalid ticket: {ticket}')
 
     return (

src/uds/consts.py

@@ -108,7 +108,8 @@ def _feature_requested(env_var: str) -> bool:
 RESPONSE_OK: typing.Final[bytes] = b'OK'
 
 # Ticket length
-TICKET_LENGTH: typing.Final[int] = 40  # Ticket length FOR UDS
+TICKET_LENGTH: typing.Final[int] = 48  # Ticket length FOR UDS
+LEGACY_TICKET_LENGTH: typing.Final[int] = 40  # Ticket length for legacy UDS (pre 3.5.x)
 
 # Constants strings for protocol
 HANDSHAKE_V1: typing.Final[bytes] = b'\x5AMGB\xA5\x01\x00'