WAP protocol

Hi,

1) I'd like to change the listening ports of my GateWay Connection-less
and Connection-oriented services.
I found these ports hard-coded in the "bb_udp.c" add_service calls.
I just tried to change these (and in the wapbox.c #define too), but the
GateWay doesn't seem to understand the messages:

2002-12-09 14:57:41 [0] WARNING: WTP PDU with unknown type -1
2002-12-09 14:57:41 [0] ERROR: pdu unpacking returned NULL
2002-12-09 14:57:41 [5] DEBUG: an erronous pdu received
2002-12-09 14:57:41 [5] DEBUG: Dumping WAPEvent 0x80d4dc0
2002-12-09 14:57:41 [5] DEBUG:   type = RcvErrorPDU
2002-12-09 14:57:41 [5] DEBUG:   tid = 16413
2002-12-09 14:57:41 [5] DEBUG: WAPAddrTuple 0x80d4e10 =
<10.10.10.221:1165> - <0.0.0.0:9300>
2002-12-09 14:57:41 [5] DEBUG: WAPEvent dump ends.
2002-12-09 14:57:41 [5] DEBUG: WTP: Created WTPRespMachine 0x80d4b30 (0)
2002-12-09 14:57:41 [5] DEBUG: WTP: resp_machine 0, state LISTEN, event
RcvErrorPDU.
2002-12-09 14:57:41 [5] DEBUG: WTP 0: New state LISTEN
2002-12-09 14:57:41 [5] DEBUG: WTP: Destroying WTPRespMachine 0x80d4b30
(0)
2002-12-09 14:58:02 [0] WARNING: WTP PDU with unknown type -1
2002-12-09 14:58:02 [0] ERROR: pdu unpacking returned NULL
2002-12-09 14:58:02 [5] DEBUG: an erronous pdu received
2002-12-09 14:58:02 [5] DEBUG: Dumping WAPEvent 0x80d4e50
2002-12-09 14:58:02 [5] DEBUG:   type = RcvErrorPDU
2002-12-09 14:58:02 [5] DEBUG:   tid = 16413
2002-12-09 14:58:02 [5] DEBUG: WAPAddrTuple 0x80d4ea0 =
<10.10.10.221:1165> - <0.0.0.0:9300>
2002-12-09 14:58:02 [5] DEBUG: WAPEvent dump ends.
2002-12-09 14:58:02 [5] DEBUG: WTP: Created WTPRespMachine 0x80d4b30 (1)
2002-12-09 14:58:02 [5] DEBUG: WTP: resp_machine 1, state LISTEN, event
RcvErrorPDU.
2002-12-09 14:58:02 [5] DEBUG: WTP 1: New state LISTEN
2002-12-09 14:58:02 [5] DEBUG: WTP: Destroying WTPRespMachine 0x80d4b30
(1)

What's the trick ?? And why do these parameters are not configurable in
the wapkannel.conf file ???



2) When I catch a UDP/WDP packet, how do I know it's a WSP or WTP
datagram ??
Since the WDP pay-load begins directly with the WSP or WTP TID, and this
TID is sequential, I have no way to know whether this packet is for my
WAP stack or not because I have no protocol specific stuff to analyse...
Maybe, I'm confused with some basis of the protocol.. Could someone tell
me about that...

Christophe