From: Fan Du <fan.du@windriver.com>
Date: Sat, 18 Jan 2014 01:54:27 +0000 (+0800)
Subject: {IPv6,xfrm} Add ESN support for AH ingress part
X-Git-Tag: v3.15-rc1~113^2~287^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d6da6f325572664107601a3c9782f8c23c1bfc5;p=pandora-kernel.git

{IPv6,xfrm} Add ESN support for AH ingress part

This patch add esn support for AH input stage by attaching upper 32bits
sequence number right after packet payload as specified by RFC 4302.

Then the ICV value will guard upper 32bits sequence number as well when
packet going in.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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