Wireshark-bugs: [Wireshark-bugs] [Bug 5194] New: Wireshark mistakenly writes "not all data avail
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Wed, 8 Sep 2010 05:41:21 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5194

           Summary: Wireshark mistakenly writes "not all data available"
                    for IPv4 checksum
           Product: Wireshark
           Version: 1.5.x (Experimental)
          Platform: x86-64
        OS/Version: Windows 7
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: boaz.brickner@xxxxxxxxx


Created an attachment (id=5136)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=5136)
A packet example pcap file with the descripted problem

Build Information:
Version 1.5.0-SVN-34063 (SVN Rev 34063 from /trunk)

Copyright 1998-2010 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled with GTK+ 2.16.6, (64-bit) with GLib 2.22.4, with WinPcap (version
unknown), with libz 1.2.3, without POSIX capabilities, without libpcre, without
SMI, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with
Gcrypt 1.4.5, without Kerberos, with GeoIP, with PortAudio V19-devel (built Sep 
5 2010), with AirPcap.

Running on 64-bit Windows 7, build 7600, with WinPcap version 4.1.2 (packet.dll
version 4.1.0.2001), based on libpcap version 1.0 branch 1_0_rel0b (20091008),
GnuTLS 2.8.5, Gcrypt 1.4.5, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 30729

Wireshark is Open Source Software released under the GNU General Public
License.

Check the man page and http://www.wireshark.org for more information.
--
While testing Pcap.Net (http://pcapdot.net), I've found this bug in Wireshark:

I have a Redirect ICMP packet that contains an IPv4 header (So it is IPv4
header over ICMP over IPv4 over Ethernet).
The IPv4 header inside the ICMP is 40 bytes long and this IPv4 layer has an 8
bytes payload (Total Length is 48 bytes).
However, Wireshark doesn't compute the IPv4 header checksum and writes "not all
data available" even though you can see in Wireshark that all the data is
available.

Attached is a pcap file with the packet I'm talking about.

Thank you,

Boaz.

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