Wireshark · Wireshark-dev: Re: [Wireshark-dev] TCP dissect issue when app-level message spans multiple TCP packets

["Fernandez, Rafael" <Rafael.Fernandez@xxxxxxxxxxxxxxxx>]

There are only TCP packets in my capture file. I don't have access to svn at work, I just tried the 1.5.1 dev version code. It is the same.


-----Original Message-----
From: wireshark-dev-bounces@xxxxxxxxxxxxx [mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] On Behalf Of Chris Maynard
Sent: Thursday, May 05, 2011 1:26 PM
To: wireshark-dev@xxxxxxxxxxxxx
Subject: Re: [Wireshark-dev] TCP dissect issue when app-level message spans multiple TCP packets

Fernandez, Rafael <Rafael.Fernandez@...> writes:

> OK. This function returns exactly the same as yours. The rest of the code in
there for debugging purposes.

You're right.  I got distracted by the comparison still being done between
last_size and remaining.

> Don't you think there is an issue with this?

Can you try removing the "if(pinfo->tcp_tree != NULL)" check?

    if(pinfo->tcp_tree != NULL) {
        tcp_dissect_pdus(tvb, pinfo, tree, TRUE, 4, get_message_tcpmessage_len,
                         dissect_message_tcpmessage);
    }

If that helps, then you should look into structuring your code like the dns
dissector does, with separate dissect_message_tcp() and dissect_message_udp()
functions.

If that doesn't help, then you might try compiling your code against the latest
development trunk as I believe there have been some changes made recently
concerning reassembly that might help you.


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