Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 13029] Skype heuristic dissector for TCP always accepts packet as Skype

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Balint Reczey changed bug 13029

What	Removed	Added
Component	Qt UI	Dissection engine (libwireshark)
Version	2.2.1	Git
Summary	BitTorrent protocol not dissected although all protocols are enabled	Skype heuristic dissector for TCP always accepts packet as Skype
Severity	Normal	Enhancement

Comment # 2 on bug 13029 from Balint Reczey

This is actually a bug in the Skype dissector:

epan/dissectors/packet-skype.c:
...
static gboolean
dissect_skype_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void
*data _U_)
{
    if (pinfo->ptype == PT_UDP) {
        if ( !test_skype_udp(tvb) ) {
            return FALSE;
        }
        dissect_skype_udp(tvb, pinfo, tree);
    }
    return TRUE;
}
...

Wireshark has some dissectors disabled by default, very often because they
interfere with other, more mature ones.

It would be nice to have a working heuristic skype dissector, thus I convert
this bug to a feature request.

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