not the data length (the packet might've been cut short by a snapshot
length).
Fetch the reported length with an accessor.
svn path=/trunk/; revision=20743
Wireshark complains about bogus udp length when processing last fragment of UDP data.
It compares length field from UDP header with payload size of last fragment.
Attached is my attempt to fix this by referring to tvp->length instead of pinfo->iplen - pinfo->iphdrlen.
Also set some items attribute to generated.
svn path=/trunk/; revision=20722
the "checksum bad" and "checksum good" flags as generated fields, add
an expert info item on a checksum error, and put a "checksum incorrect"
indication in the Info column.
Clean up indentation.
svn path=/trunk/; revision=20092
Attached is a patch to allow the disabling of the UDP/UDPlite checksum
verification for cards that offload it and report it incorrectly.
svn path=/trunk/; revision=19725
> Two patch files are attached adding UDP-Lite dissection to the UDP
> dissector. Wiki page is available at the normal location, including
> sample captures courtesy of Gerrit Renker of the University of
> Aberdeen Electronics Research Group. The patch has been tested with
> both the sample captures and Fuzz test.
And add Marc Petit-Huguenin to AUTHORS
svn path=/trunk/; revision=16801
and not free the string to which it points. Pass to
REPORT_DISSECTOR_BUG() strings allocated with ep_strdup_printf(), so
that they're freed automatically.
svn path=/trunk/; revision=16039
in a simple approach, I've replaced all g_assert() and g_assert_not_reached() calls by their exception throwing counterparts DISSECTOR_ASSERT() and DISSECTOR_ASSERT_NOT_REACHED()
this will replace application crash by showing a dissector bug, which is the desired behaviour
there were some g_assert calls in the protocol registering functions, which might not be acting as expected now, but to be able to simply search for g_assert in the future I've replaced that calls too
one g_assert remained, the one when someone throws an unknown exception "into" packet_frame.c, but IMHO this one should remain.
svn path=/trunk/; revision=14608
This is very naughty and will cause problems when we have assigned a dissector to a dynamic port using conversation_set_dissector().
To make ethereal handle this case I have changed the try_conversation_dissector() to allow it to fail and return 0, meaning yes there is indeed a protocol registered for this conversation but that protocol rejected this packet.
(which only happens for "new" style dissectors, "old" style dissectors will never reject a packet that way)
When this happens the decode_udp_port() helper will still allow other dissectors to be tried, in the hope that the conversation is now used for some other protocol and thus someone else might be able to decode the packet.
Update SNMP and TFTP dissectors to check that even if there already is a conversation but that conversation does NOT have snmp/tftp registered as the dissector for it, then create a new conversation anyway and attach the proper dissector.
Since ethereal keeps track of which frame number a conversation started in, this actually works really well.
svn path=/trunk/; revision=14345
length of the UDP header itself, so subtract the length of the header
when using it to limit the length of the payload tvbuff.
Clean up the computing of the captured length of the payload tvbuff (we
really should get rid of the "length" argument to "tvb_new_subset()",
and have it compute the captured length based on the supplied reported
length and the amount of that data actually present in the parent
tvbuff).
Don't fetch the length and checksum fields until we use them (so that we
don't throw an exception until then, and fail to process the source and
destination ports), and check whether the length is bogus regardless of
whether we're building a protocol tree or not.
svn path=/trunk/; revision=12444
include of <resolv.h> in any system header file gets the system
<resolv.h> (needed for builds on Tru64 with GTK+ 1.2[.x]).
svn path=/trunk/; revision=11615
Also move ncp222.py, x11-fields, process-x11-fields.pl,
make-reg-dotc, and make-reg-dotc.py.
Adjust #include lines in files that include packet-*.h
files.
svn path=/trunk/; revision=11410
