From: Wei Yongjun <yjwei@cn.fujitsu.com>
Date: Sat, 26 Jul 2008 10:59:10 +0000 (+0100)
Subject: dccp: Fix sequence number check for ICMPv4 packets
X-Git-Tag: v2.6.27-rc1~33^2~1^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d68f0866f76e2bc4ddc07e88e2cb1bc8959a6d7e;p=pandora-kernel.git

dccp: Fix sequence number check for ICMPv4 packets

The payload of ICMP message is a part of the packet sent by ourself,
so the sequence number check must use AWL and AWH, not SWL and SWH.

For example:
     Endpoint A                  Endpoint B

     DATA-ACK       -------->
     (SEQ=X)
                    <--------    ICMP (Fragmentation Needed)
                                 (SEQ=X)

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
---

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