https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6890
Summary: DVB-CI: use circuits to keep track of sessions
Product: Wireshark
Version: SVN
Platform: x86
OS/Version: All
Status: NEW
Severity: Enhancement
Priority: Low
Component: Wireshark
AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
ReportedBy: wireshark@xxxxxxxxx
Created attachment 7929
--> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=7929
use circuit to track a DVB-CI session
Build Information:
TShark 1.7.1 (SVN Rev 41247 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,
the attached patch for the DVB-CI dissector creates a circuit for each DVB-CI
session, using the session number as circuit id.
The DVB-CI session commands are
open_session_request(resource_id)
session_opened(resource_id, newly assigned session number)
payload transfer(session_number, payload data)
close session(session_number)
For now, the circuit will store the resource id and make it available (as a
generated item) to subsequent packets that contain only the session number.
Doing this, the resource id (which is like a tcp/udp port) can be used for
filtering.
When I'm reading the resource id from the circuit (and not from a tvbuff of the
packet), I'm using
proto_tree_add_uint_format(tree, hf_dvbci_..., tvb==NULL, offset==0, len==0,
...)
to add a filterable item to the tree that is not refering to a tvbuff.
Thanks for your review and for merging the patch.
Best regards,
Martin
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