[XFRM] IPv6: Fix dst/routing check at transformation.

[linux-2.6-omap-h63xx.git] / net / xfrm / xfrm_policy.c

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 8023a3c0dad5f9b69bd113934a95e5d33759bca3..521cb6e12561fa6d059d40b9fdc008522b08b1d5 100644 (file)
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1266,6 +1266,23 @@ static inline struct xfrm_dst *xfrm_alloc_dst(int family)
        return xdst;
 }
 
+static inline int xfrm_init_path(struct xfrm_dst *path, struct dst_entry *dst,
+                                int nfheader_len)
+{
+       struct xfrm_policy_afinfo *afinfo =
+               xfrm_policy_get_afinfo(dst->ops->family);
+       int err;
+
+       if (!afinfo)
+               return -EINVAL;
+
+       err = afinfo->init_path(path, dst, nfheader_len);
+
+       xfrm_policy_put_afinfo(afinfo);
+
+       return err;
+}
+
 static inline int xfrm_fill_dst(struct xfrm_dst *xdst, struct net_device *dev)
 {
        struct xfrm_policy_afinfo *afinfo =
@@ -1298,6 +1315,7 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
        int i = 0;
        int err;
        int header_len = 0;
+       int nfheader_len = 0;
        int trailer_len = 0;
        int tos;
        int family = policy->selector.family;
@@ -1352,6 +1370,8 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
                dst_prev = dst1;
 
                header_len += xfrm[i]->props.header_len;
+               if (xfrm[i]->type->flags & XFRM_TYPE_NON_FRAGMENT)
+                       nfheader_len += xfrm[i]->props.header_len;
                trailer_len += xfrm[i]->props.trailer_len;
        }
 
@@ -1366,6 +1386,7 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
        /* Copy neighbout for reachability confirmation */
        dst0->neighbour = neigh_clone(dst->neighbour);
 
+       xfrm_init_path((struct xfrm_dst *)dst0, dst, nfheader_len);
        xfrm_init_pmtu(dst_prev);
 
        for (dst_prev = dst0; dst_prev != dst; dst_prev = dst_prev->child) {