http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1376
Summary: payload missing when interprete mpeg2ts packet with
adaptation field
Product: Wireshark
Version: 0.99.5
Platform: All
OS/Version: All
Status: NEW
Severity: Normal
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: sio4@xxxxxxxxxxxx
Build Information:
Compiled with GTK+ 2.10.8, with GLib 2.12.9, with libpcap 0.9.4, with libz
1.2.3, with libpcre 6.6, with Net-SNMP 5.3.1, without ADNS, without Lua, with
GnuTLS 1.4.1, with Gcrypt 1.2.3, with MIT Kerberos, without PortAudio, without
AirPcap.
Running on Linux 2.6.18-1.2869.fc6, with libpcap version 0.9.4.
Built using gcc 4.1.1 20070105 (Red Hat 4.1.1-51).
--
Please execuse my poor English.
When I capture RTP stream, and apply "decode as..." RTP, wireshark show me TS
packets inside RTP. but some interpretation of TS packet is invalid.
when ts packet carried adaptation field and payload, it must handle both of
adaptation field and payload. but decoder ignore payload.
in this situation, inside of ts structure, 'adaptation_field_control' value is
3, by "0x02 | 0x01". 0x02 is 'has adaptation field' and 0x01 is 'has payload'.
so it must interpreted as bit, not value.
epan/dissectors/packet-mp2t.c line 390+3 is point of problem. it treat afc as
value.
below is my patch but is there no attachment field? (i'm first time using
bugzilla.)
--- wireshark-0.99.5/epan/dissectors/packet-mp2t.c.orig 2007-02-14
12:47:19.0000
00000 +0900
+++ wireshark-0.99.5/epan/dissectors/packet-mp2t.c 2007-02-14
13:06:22.0000
00000 +0900
@@ -390,7 +390,7 @@
}
}
- if (afc == 0 || afc == 1) {
+ if (afc == 0 || (afc & 0x1)) {
gint payload_len;
payload_len = MP2T_PACKET_SIZE - (offset - start_offset);
--
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