xfrm: add rfc4494 AES-CMAC-96 support

Now that CryptoAPI has support for CMAC, we can add support for AES-CMAC-96
(rfc4494).

Cc: Tom St Denis <tstdenis@elliptictech.com>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 13 insertions, 0 deletions

diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index 6fb9d00a75dc..ab4ef72f0b1d 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -311,6 +311,19 @@ static struct xfrm_algo_desc aalg_list[] = {
                 .sadb_alg_maxbits = 128
         }
 },
+{
+        /* rfc4494 */
+        .name = "cmac(aes)",
+
+        .uinfo = {
+                .auth = {
+                        .icv_truncbits = 96,
+                        .icv_fullbits = 128,
+                }
+        },
+
+        .pfkey_supported = 0,
+},
 };
 
 static struct xfrm_algo_desc ealg_list[] = {