https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7052
Summary: DVB-CI host control: dissect pmt section by calling
mpeg_pmt dissector
Product: Wireshark
Version: SVN
Platform: x86
OS/Version: All
Status: NEW
Severity: Major
Priority: Low
Component: Wireshark
AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
ReportedBy: wireshark@xxxxxxxxx
Build Information:
TShark 1.7.2 (SVN Rev 42000 from /trunk)
Copyright 1998-2012 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 (64-bit) with GLib 2.24.2, with libpcap, with libz 1.2.3.4, without
POSIX capabilities, without SMI, without c-ares, without ADNS, without Lua,
without Python, with GnuTLS 2.8.6, with Gcrypt 1.4.5, with MIT Kerberos,
without
GeoIP.
Running on Linux 2.6.32-5-amd64, with locale en_US.UTF-8, with libpcap version
1.1.1, with libz 1.2.3.4.
Built using gcc 4.4.5.
--
Dear all,
@Anders: thanks for merging the oipf patch.
in DVB-CI/CI+, there's one apdu that contains a PMT (program map table) as part
of the message. As we have a dissector for mpeg_pmt, it would be useful to call
it for dissecting such a pmt.
The issue I've had with this was that the mpeg_pmt dissector clears the info
column and sets it to "Program Map Table". That makes sense if we dissect a
transport stream where a packet contains only a pmt but not if the pmt is part
of a DVB-CI message.
My solution is to use p_add_proto_data() and p_get_proto_data(). The DVB-CI
dissector sets some random data for its protocol, the mpeg_pmt dissector checks
if DVB-CI has seen the packet before and doesn't touch the info column in this
case.
Thanks for review and merging, as usual.
Best regards,
Martin
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