From: Patrick McHardy <kaber@trash.net>
Date: Mon, 16 May 2011 12:45:39 +0000 (+0200)
Subject: netfilter: nf_ct_sip: fix SDP parsing in TCP SIP messages for some Cisco phones
X-Git-Tag: v2.6.39.1~114
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6406426e95eea9ccfcc8b15ac6613c8af438cffe;p=pandora-kernel.git

netfilter: nf_ct_sip: fix SDP parsing in TCP SIP messages for some Cisco phones

[ Upstream commit e6e4d9ed11fb1fab8b3256a3dc14d71b5e984ac4 ]

Some Cisco phones do not place the Content-Length field at the end of the
SIP message. This is valid, due to a misunderstanding of the specification
the parser expects the SDP body to start directly after the Content-Length
field. Fix the parser to scan for \r\n\r\n to locate the beginning of the
SDP body.

Reported-by: Teresa Kang <teresa_kang@gemtek.com.tw>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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