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Re: Defect in reassembling TCP stream. Bug and Patch are available on Bugzilla.
From: Pavel Karneliuk <Pavel_Karneliuk () epam com>
Date: Fri, 28 Mar 2014 16:09:52 +0000

Yes, I am going to gerrit.

From: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Pascal Quantin
Sent: Friday, March 28, 2014 6:57 PM
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] Defect in reassembling TCP stream. Bug and Patch are available on Bugzilla.


Le 28 mars 2014 16:52, "Pavel Karneliuk" <Pavel_Karneliuk () epam com<mailto:Pavel_Karneliuk () epam com>> a écrit :

Hi Pascal,

thank you for answer. I saw your commits to follow.c and I hoped for your reply.

450:if( newseq > seq[idx] ) {

I think - Yes. It compares sequence numbers.


459: if ( current->data_len > new_pos ) {
I am sure,  that - No. Because it compares length of data from fragment instead of sequence numbers.
Doh that's what happens when you reply without looking carefully at the code ;)


There are some places in check_fragments() and reassemble_tcp() with a "naive" comparison of sequence numbers:
369: if( sequence < seq[src_index] ) {



I think, they should be replaced with macros from packet-tcp.h 51-55.  At least to be uniformly.

As Graham suggested, it would be great if you could submit a patch on gerrit against master branch. Would it be 
feasible?

Regards,
Pascal.
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