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-rw-r--r--net/xfrm/xfrm_policy.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 8023a3c0dad5..521cb6e12561 100644
--- 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) {
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