From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 29 Jan 2008 03:37:29 +0000 (-0800)
Subject: [IPSEC]: Add support for combined mode algorithms
X-Git-Tag: v2.6.25-rc1~1089^2~133
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a6509d991225ad210de54c63314fd9542922095;p=pandora-kernel.git

[IPSEC]: Add support for combined mode algorithms

This patch adds support for combined mode algorithms with GCM being
the first algorithm supported.

Combined mode algorithms can be added through the xfrm_user interface
using the new algorithm payload type XFRMA_ALG_AEAD.  Each algorithms
is identified by its name and the ICV length.

For the purposes of matching algorithms in xfrm_tmpl structures,
combined mode algorithms occupy the same name space as encryption
algorithms.  This is in line with how they are negotiated using IKE.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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