Wireshark-dev: [Wireshark-dev] Okay to dissect more than one packet at the same time?
From: Eloy Paris <peloy@xxxxxxxxxx>
Date: Thu, 27 Mar 2008 11:06:15 -0400
Hello,

Is it possible to dissect more than one packet at the same time. Or
asked another way, is it okay to keep in memory the result of more than
one packet dissection? I haven't looked at what wireshark does (and
perhaps that is why I don't know the answer to this) but I did look at
what tshark does and it calls epan_dissect_run() in a serialized manner,
i.e. read packet, dissect packet, output result, read next packet,
dissect, output result, and so on.

In terms of code, what I would like to do is something like this:

    epan_dissect_t *edt1, *edt2;

    edt1 = epan_dissect_new(...);
    epan_dissect_run(edt1, &pseudo_header1, packet1, &fdata1, NULL);

    edt2 = epan_dissect_new(...);
    epan_dissect_run(edt2, &pseudo_header2, packet2, &fdata2, NULL);

    do_something_with_dissection_results(edt1, edt2);

    epan_dissect_free(edt1);
    epan_dissect_free(edt2);

Is the above an okay thing to do? Any gotchas and/or things to avoid?

Thanks in advance.

Eloy Paris.-