xfrm: Clone states properly on migration

[~andy/linux] / include / net / xfrm.h

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index afa5730fb3bd2ff810f63f861f1b52b29e34c965..fb5654a8ca3cee1c65923c105f3760d607eaa1de 100644 (file)
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1648,6 +1648,11 @@ static inline int xfrm_aevent_is_on(struct net *net)
 }
 #endif
 
+static inline int aead_len(struct xfrm_algo_aead *alg)
+{
+       return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
+}
+
 static inline int xfrm_alg_len(const struct xfrm_algo *alg)
 {
        return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
@@ -1686,6 +1691,12 @@ static inline int xfrm_replay_clone(struct xfrm_state *x,
        return 0;
 }
 
+static inline struct xfrm_algo_aead *xfrm_algo_aead_clone(struct xfrm_algo_aead *orig)
+{
+       return kmemdup(orig, aead_len(orig), GFP_KERNEL);
+}
+
+
 static inline struct xfrm_algo *xfrm_algo_clone(struct xfrm_algo *orig)
 {
        return kmemdup(orig, xfrm_alg_len(orig), GFP_KERNEL);