Problem with h245 dissectorI have checked in the change that were discussed
changing it from being a restricted character string into being an IA5String
I still think that the standard says that the previous behaviour of ethereal
was the correct one, but if multiple other imlementations differs, there
is no point in refusing.
----- Original Message -----
From: Paul Higgs (CA/EUS)
To: 'ethereal-dev@xxxxxxxxxxxx'
Cc: 'ethereal-users@xxxxxxxxxxxx'
Sent: Thursday, November 20, 2003 5:47 AM
Subject: [Ethereal-dev] Problem with h245 dissector
Hi
I have found a problem with the dissector for H245 in regards to displaying
the signalType of a UserInputIndication. The signalType prints as a ? when
it is actually an !
H.225.0 CS
H323_UserInformation
H323_UU_PDU
h323_message_body
h323_message_body: .... .110 : facility (6)
FacilityUUIE
ProtocolIdentifier: 0.0.8.2250.0.4
FacilityReason
transportedInformation
CallIdentifier
guid: 2AFA51A97C0000102143204166275475
multipleCalls: 0... .... False
maintainConnection: 0... .... False
h245Tunneling: 1... .... True
h245Control
Item 0
Octet String Length: 7
H.245
MultimediaSystemControlMessage
PDU Type: .11. .... : Indication (3)
IndicationMessage
Indication Type: .... 1101 :
UserInputIndication (13)
UserInputIndication
signal
UserInputIndication_signal
signalType: ?
duration: 400
0000 00 80 37 84 fb 9c 00 10 b5 75 ac 1d 08 00 45 00 ..7......u....E.
0010 00 6a bb 17 40 00 80 06 93 e7 c0 a8 15 32 c0 a8 .j..@........2..
0020 15 0c 75 5a 0f a1 e5 77 18 df 95 c4 e6 f4 50 18 ..uZ...w......P.
0030 43 3a b0 d2 00 00 03 00 00 42 08 02 12 76 62 1c C:.......B...vb.
0040 00 7e 00 34 05 26 80 06 00 08 91 4a 00 04 86 01 .~.4.&.....J....
0050 00 1f 01 80 11 00 2a fa 51 a9 7c 00 00 10 21 43 ......*.Q.|...!C
0060 20 41 66 27 54 75 01 00 01 00 10 c0 01 80 09 01 Af'Tu..........
0070 07 6d 81 04 44 20 01 8f .m..D ..
I looked in the codebase and it seems that this element is not dissceted as
an IA5string but with some other method. We modified the code to use an IA5
dissector and it showed correct results (but we did not use a restricted
character set dissector for IA5 as none seems to be available)
Paul Higgs
Manager, Product Development
Ericsson Inc Phone: +1 (925) 7375847
6160 Stoneridge Mall Road, suite 400 Fax: +1 (925) 7375955
Pleasanton, California 94588 Mobile: +1 (650) 5801731
United States of America ECN: 805 5847
www.ericsson.com paul.higgs@xxxxxxxxxxxx
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