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authorTimo Teräs <timo.teras@iki.fi>2010-11-03 07:41:38 +0300
committerDavid S. Miller <davem@davemloft.net>2010-11-15 21:44:04 +0300
commitcc9ff19da9bf76a2f70bcb80225a1c587c162e52 (patch)
tree181efcd617a42a48fa94c51cfe9dc0e77b3b5775 /include/net/xfrm.h
parente1f2d8c2cc61d2b9472efe44e8a2b098336914b4 (diff)
downloadlinux-cc9ff19da9bf76a2f70bcb80225a1c587c162e52.tar.xz
xfrm: use gre key as flow upper protocol info
The GRE Key field is intended to be used for identifying an individual traffic flow within a tunnel. It is useful to be able to have XFRM policy selector matches to have different policies for different GRE tunnels. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/xfrm.h')
-rw-r--r--include/net/xfrm.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index bcfb6b24b019..54b283229488 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -805,6 +805,9 @@ __be16 xfrm_flowi_sport(struct flowi *fl)
case IPPROTO_MH:
port = htons(fl->fl_mh_type);
break;
+ case IPPROTO_GRE:
+ port = htonl(fl->fl_gre_key) >> 16;
+ break;
default:
port = 0; /*XXX*/
}
@@ -826,6 +829,9 @@ __be16 xfrm_flowi_dport(struct flowi *fl)
case IPPROTO_ICMPV6:
port = htons(fl->fl_icmp_code);
break;
+ case IPPROTO_GRE:
+ port = htonl(fl->fl_gre_key) & 0xffff;
+ break;
default:
port = 0; /*XXX*/
}