IPSEC: Pass the algorithm salt (used in GCM) over the API

[vpp.git] / src / vnet / ipsec / ipsec_api.c

diff --git a/src/vnet/ipsec/ipsec_api.c b/src/vnet/ipsec/ipsec_api.c
index e6f5bd3..4a15beb 100644 (file)
--- a/src/vnet/ipsec/ipsec_api.c
+++ b/src/vnet/ipsec/ipsec_api.c
@@ -207,7 +207,7 @@ ipsec_proto_decode (vl_api_ipsec_proto_t in, ipsec_protocol_t * out)
       *out = IPSEC_PROTOCOL_AH;
       return (0);
     }
-  return (VNET_API_ERROR_UNIMPLEMENTED);
+  return (VNET_API_ERROR_INVALID_PROTOCOL);
 }
 
 static vl_api_ipsec_proto_t
@@ -237,7 +237,7 @@ ipsec_crypto_algo_decode (vl_api_ipsec_crypto_alg_t in,
       foreach_ipsec_crypto_alg
 #undef _
     }
-  return (VNET_API_ERROR_UNIMPLEMENTED);
+  return (VNET_API_ERROR_INVALID_ALGORITHM);
 }
 
 static vl_api_ipsec_crypto_alg_t
@@ -270,7 +270,7 @@ ipsec_integ_algo_decode (vl_api_ipsec_integ_alg_t in, ipsec_integ_alg_t * out)
       foreach_ipsec_integ_alg
 #undef _
     }
-  return (VNET_API_ERROR_UNIMPLEMENTED);
+  return (VNET_API_ERROR_INVALID_ALGORITHM);
 }
 
 static vl_api_ipsec_integ_alg_t
@@ -308,11 +308,18 @@ ipsec_sa_flags_decode (vl_api_ipsec_sad_flags_t in)
   ipsec_sa_flags_t flags = IPSEC_SA_FLAG_NONE;
   in = clib_net_to_host_u32 (in);
 
-#define _(v,f,s) if (in & IPSEC_API_SAD_FLAG_##f)    \
-    flags |= IPSEC_SA_FLAG_##f;
-  foreach_ipsec_sa_flags
-#undef _
-    return (flags);
+  if (in & IPSEC_API_SAD_FLAG_USE_ESN)
+    flags |= IPSEC_SA_FLAG_USE_ESN;
+  if (in & IPSEC_API_SAD_FLAG_USE_ANTI_REPLAY)
+    flags |= IPSEC_SA_FLAG_USE_ANTI_REPLAY;
+  if (in & IPSEC_API_SAD_FLAG_IS_TUNNEL)
+    flags |= IPSEC_SA_FLAG_IS_TUNNEL;
+  if (in & IPSEC_API_SAD_FLAG_IS_TUNNEL_V6)
+    flags |= IPSEC_SA_FLAG_IS_TUNNEL_V6;
+  if (in & IPSEC_API_SAD_FLAG_UDP_ENCAP)
+    flags |= IPSEC_SA_FLAG_UDP_ENCAP;
+
+  return (flags);
 }
 
 static vl_api_ipsec_sad_flags_t
@@ -320,15 +327,15 @@ ipsec_sad_flags_encode (const ipsec_sa_t * sa)
 {
   vl_api_ipsec_sad_flags_t flags = IPSEC_API_SAD_FLAG_NONE;
 
-  if (sa->use_esn)
-    flags |= IPSEC_API_SAD_FLAG_USE_EXTENDED_SEQ_NUM;
-  if (sa->use_anti_replay)
+  if (ipsec_sa_is_set_USE_ESN (sa))
+    flags |= IPSEC_API_SAD_FLAG_USE_ESN;
+  if (ipsec_sa_is_set_USE_ANTI_REPLAY (sa))
     flags |= IPSEC_API_SAD_FLAG_USE_ANTI_REPLAY;
-  if (sa->is_tunnel)
+  if (ipsec_sa_is_set_IS_TUNNEL (sa))
     flags |= IPSEC_API_SAD_FLAG_IS_TUNNEL;
-  if (sa->is_tunnel_ip6)
+  if (ipsec_sa_is_set_IS_TUNNEL_V6 (sa))
     flags |= IPSEC_API_SAD_FLAG_IS_TUNNEL_V6;
-  if (sa->udp_encap)
+  if (ipsec_sa_is_set_UDP_ENCAP (sa))
     flags |= IPSEC_API_SAD_FLAG_UDP_ENCAP;
 
   return clib_host_to_net_u32 (flags);
@@ -378,12 +385,11 @@ static void vl_api_ipsec_sad_entry_add_del_t_handler
   ip_address_decode (&mp->entry.tunnel_src, &tun_src);
   ip_address_decode (&mp->entry.tunnel_dst, &tun_dst);
 
-
   if (mp->is_add)
     rv = ipsec_sa_add (id, spi, proto,
                       crypto_alg, &crypto_key,
                       integ_alg, &integ_key, flags,
-                      0, &tun_src, &tun_dst, &sa_index);
+                      0, mp->entry.salt, &tun_src, &tun_dst, &sa_index);
   else
     rv = ipsec_sa_del (id);
 
@@ -616,6 +622,7 @@ vl_api_ipsec_tunnel_if_add_del_t_handler (vl_api_ipsec_tunnel_if_add_del_t *
   ipsec_main_t *im = &ipsec_main;
   vnet_main_t *vnm = im->vnet_main;
   u32 sw_if_index = ~0;
+  ip46_type_t itype;
   int rv;
 
 #if WITH_LIBSSL > 0
@@ -636,8 +643,10 @@ vl_api_ipsec_tunnel_if_add_del_t_handler (vl_api_ipsec_tunnel_if_add_del_t *
   tun.remote_integ_key_len = mp->remote_integ_key_len;
   tun.udp_encap = mp->udp_encap;
   tun.tx_table_id = ntohl (mp->tx_table_id);
-  memcpy (&tun.local_ip.ip4, mp->local_ip, 4);
-  memcpy (&tun.remote_ip.ip4, mp->remote_ip, 4);
+  tun.salt = mp->salt;
+  itype = ip_address_decode (&mp->local_ip, &tun.local_ip);
+  itype = ip_address_decode (&mp->remote_ip, &tun.remote_ip);
+  tun.is_ip6 = (IP46_TYPE_IP6 == itype);
   memcpy (&tun.local_crypto_key, &mp->local_crypto_key,
          mp->local_crypto_key_len);
   memcpy (&tun.remote_crypto_key, &mp->remote_crypto_key,
@@ -688,7 +697,7 @@ send_ipsec_sa_details (ipsec_sa_t * sa, vl_api_registration_t * reg,
 
   mp->entry.flags = ipsec_sad_flags_encode (sa);
 
-  if (sa->is_tunnel)
+  if (ipsec_sa_is_set_IS_TUNNEL (sa))
     {
       ip_address_encode (&sa->tunnel_src_addr, IP46_TYPE_ANY,
                         &mp->entry.tunnel_src);
@@ -700,12 +709,12 @@ send_ipsec_sa_details (ipsec_sa_t * sa, vl_api_registration_t * reg,
   mp->salt = clib_host_to_net_u32 (sa->salt);
   mp->seq_outbound = clib_host_to_net_u64 (((u64) sa->seq));
   mp->last_seq_inbound = clib_host_to_net_u64 (((u64) sa->last_seq));
-  if (sa->use_esn)
+  if (ipsec_sa_is_set_USE_ESN (sa))
     {
       mp->seq_outbound |= (u64) (clib_host_to_net_u32 (sa->seq_hi));
       mp->last_seq_inbound |= (u64) (clib_host_to_net_u32 (sa->last_seq_hi));
     }
-  if (sa->use_anti_replay)
+  if (ipsec_sa_is_set_USE_ANTI_REPLAY (sa))
     mp->replay_window = clib_host_to_net_u64 (sa->replay_window);
 
   vl_api_send_msg (reg, (u8 *) mp);
@@ -778,7 +787,7 @@ vl_api_ipsec_tunnel_if_set_key_t_handler (vl_api_ipsec_tunnel_if_set_key_t *
       if (mp->alg < IPSEC_CRYPTO_ALG_AES_CBC_128 ||
          mp->alg >= IPSEC_CRYPTO_N_ALG)
        {
-         rv = VNET_API_ERROR_UNIMPLEMENTED;
+         rv = VNET_API_ERROR_INVALID_ALGORITHM;
          goto out;
        }
       break;
@@ -786,7 +795,7 @@ vl_api_ipsec_tunnel_if_set_key_t_handler (vl_api_ipsec_tunnel_if_set_key_t *
     case IPSEC_IF_SET_KEY_TYPE_REMOTE_INTEG:
       if (mp->alg >= IPSEC_INTEG_N_ALG)
        {
-         rv = VNET_API_ERROR_UNIMPLEMENTED;
+         rv = VNET_API_ERROR_INVALID_ALGORITHM;
          goto out;
        }
       break;