crypto: af_alg - Add nokey compatibility path

This patch adds a compatibility path to support old applications
that do acept(2) before setkey.

Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
index 589716f2ee8a..df8284415c56 100644
--- a/include/crypto/if_alg.h
+++ b/include/crypto/if_alg.h
@@ -52,9 +52,11 @@ struct af_alg_type {
         void (*release)(void *private);
         int (*setkey)(void *private, const u8 *key, unsigned int keylen);
         int (*accept)(void *private, struct sock *sk);
+        int (*accept_nokey)(void *private, struct sock *sk);
         int (*setauthsize)(void *private, unsigned int authsize);
 
         struct proto_ops *ops;
+        struct proto_ops *ops_nokey;
         struct module *owner;
         char name[14];
 };