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authorMasahide NAKAMURA <nakam@linux-ipv6.org>2007-12-20 20:41:12 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:59:36 -0800
commita1b051405bc16222d92c73b0c26d65b333a154ee (patch)
tree2950e34bbb51838f8da3e1d03c8ee608d3b56f55 /net/ipv6/xfrm6_policy.c
parentbd515c3e48ececd774eb3128e81b669dbbd32637 (diff)
[XFRM] IPv6: Fix dst/routing check at transformation.
IPv6 specific thing is wrongly removed from transformation at net-2.6.25. This patch recovers it with current design. o Update "path" of xfrm_dst since IPv6 transformation should care about routing changes. It is required by MIPv6 and off-link destined IPsec. o Rename nfheader_len which is for non-fragment transformation used by MIPv6 to rt6i_nfheader_len as IPv6 name space. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/xfrm6_policy.c')
-rw-r--r--net/ipv6/xfrm6_policy.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index d26b7dc3f33b..cf373b46a1ba 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -98,6 +98,20 @@ static int xfrm6_get_tos(struct flowi *fl)
return 0;
}
+static int xfrm6_init_path(struct xfrm_dst *path, struct dst_entry *dst,
+ int nfheader_len)
+{
+ if (dst->ops->family == AF_INET6) {
+ struct rt6_info *rt = (struct rt6_info*)dst;
+ if (rt->rt6i_node)
+ path->path_cookie = rt->rt6i_node->fn_sernum;
+ }
+
+ path->u.rt6.rt6i_nfheader_len = nfheader_len;
+
+ return 0;
+}
+
static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev)
{
struct rt6_info *rt = (struct rt6_info*)xdst->route;
@@ -115,6 +129,8 @@ static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev)
RTF_LOCAL);
xdst->u.rt6.rt6i_metric = rt->rt6i_metric;
xdst->u.rt6.rt6i_node = rt->rt6i_node;
+ if (rt->rt6i_node)
+ xdst->route_cookie = rt->rt6i_node->fn_sernum;
xdst->u.rt6.rt6i_gateway = rt->rt6i_gateway;
xdst->u.rt6.rt6i_dst = rt->rt6i_dst;
xdst->u.rt6.rt6i_src = rt->rt6i_src;
@@ -266,6 +282,7 @@ static struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
.find_bundle = __xfrm6_find_bundle,
.decode_session = _decode_session6,
.get_tos = xfrm6_get_tos,
+ .init_path = xfrm6_init_path,
.fill_dst = xfrm6_fill_dst,
};