| Bug ID |
8897
|
| Summary |
SIP stats shows incorrect values for Max/Ave setup times
|
| Classification |
Unclassified
|
| Product |
Wireshark
|
| Version |
1.10.0
|
| Hardware |
x86
|
| OS |
Mac OS X 10.8
|
| Status |
UNCONFIRMED
|
| Severity |
Normal
|
| Priority |
Low
|
| Component |
TShark
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
Created attachment 11147 [details]
Sample capture with some SIP packets
Build Information:
joe@cooley:~/lab2/wireshark-1.10-trunk$ ./tshark -v
TShark 1.10.1 (SVN Rev 50375 from /trunk-1.10)
Copyright 1998-2013 Gerald Combs <[email protected]> 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 2.28.6, with libpcap, with libz 1.2.3.4, with POSIX
capabilities (Linux), without libnl, with SMI 0.4.8, with c-ares 1.7.3, with
Lua
5.1, without Python, with GnuTLS 2.8.6, with Gcrypt 1.4.6, with MIT Kerberos,
with GeoIP.
Running on Linux 2.6.38-16-generic, with locale en_US.UTF-8, with libpcap
version 1.1.1, with libz 1.2.3.4.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
Built using gcc 4.5.2.
--
The SIP stats struct in ui/cli/tap-sipstat.c is not initialized and can produce
incorrect SIP stats.
Example, look at the MAX Setup time at the end of sip stats.
joe@cooley:~/lab2/wireshark-1.10-trunk$ ./tshark -r ~/vonage.pcap -q -z
sip,stats
===================================================================
SIP Statistics
Number of SIP messages: 25
Number of resent SIP messages: 0
* SIP Status Codes in reply packets
SIP 407 Proxy Authentication Required : 2 Packets
SIP 180 Ringing : 3 Packets
SIP 183 Session Progress : 1 Packets
SIP 200 OK : 7 Packets
SIP 100 Trying : 1 Packets
* List of SIP Request methods
INVITE : 2 Packets
ACK : 2 Packets
REGISTER : 5 Packets
BYE : 2 Packets
* Average setup time -638050174 ms
Min 28 ms
Max 1802658152 ms
===================================================================
The fix is just to use g_new0 instead when allocating the sip stat struct. The
same bug exists in 1.8 with g_malloc vs. g_malloc0.
joe@cooley:~/lab2/wireshark-1.10-trunk$ svn diff
Index: ui/cli/tap-sipstat.c
===================================================================
--- ui/cli/tap-sipstat.c (revision 50380)
+++ ui/cli/tap-sipstat.c (working copy)
@@ -398,7 +398,7 @@
filter=NULL;
}
- sp = g_new(sipstat_t,1);
+ sp = g_new0(sipstat_t,1);
if(filter){
sp->filter=g_strdup(filter);
} else {
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