Hi,
I’m not sure what
you need but packet-per.c is used to decode the PER encoded stuff but it may
not suit your needs.
Another option is to look
at openh323.
But isn’t building
another VoIP analyser reinventing the wheel? Why not work on the VoIP analysis
code of Wireshark?
Regards
Anders
Från: wireshark-dev-bounces@xxxxxxxxxxxxx
[mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] För
Abelardo Rodriguez-Trilla
Skickat: den 29 februari 2008
00:13
Till: wireshark-dev@xxxxxxxxxxxxx
Ämne: [Wireshark-dev] How can I
decode ASN.1 as Wireshark does?
Hi people.
I'm developing a VoIP protocol analyzer for a University educative module, for
learning VoIP signalling protocols. I'm working with SIP and H.323. The SIP
part is ready, and the Q.931 part of H.323 is also ready. But now I'm having
issues with the ASN.1 enconding of H.225.0 and H.245. I know that first I
need to compile the ASN.1 tree to the language of my preference (C in this
case), and it is already done. But besides the structures generated by the
compiler, now I need to develop the decoding routines, which have to work with
the PER alligned rules.
I wanted to know how Wireshark does to decode it?
Thanks in advance.
--
Abelardo Rodríguez-Trilla
"If you really want to do something, you'll find a way; if you don't, you'll
find an excuse" Anonymous
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