Wireshark-bugs: [Wireshark-bugs] [Bug 1124] Application level protocol PDUs not dissected proper

Date: Mon, 25 Sep 2006 05:53:30 +0000 (GMT)
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1124





------- Comment #1 from jhoger@xxxxxxxxx  2006-09-25 05:53 GMT -------
Created an attachment (id=379)
 --> (http://bugs.wireshark.org/bugzilla/attachment.cgi?id=379&action=view)
Reproduces the desegmentation issue

What you will see in this capture file is the initial BitTorrent protocol
handshake followed by 2 BT_PIECE packets. Only the first packet is properly
dissected... the second packet is not since the "minimal header" is split
across two TCP segments.

I tested against wireshark 0.99.2 from Debian Testing.

I am not really that familiar with BitTorrent protocol. However the initial
handshake is enough to get WS to figure out that it is BitTorrent. If the Perl
script I wrote to generate this traffic is of use, let me know. I suspect it is
not particularly useful, the .cap is sufficient to repro the bug.


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