Add support for 464XLAT NAT44 mode (VPP-1045)

[vpp.git] / src / plugins / nat / nat_api.c

diff --git a/src/plugins/nat/nat_api.c b/src/plugins/nat/nat_api.c
index f1d9ec8..d0efb00 100644 (file)
--- a/src/plugins/nat/nat_api.c
+++ b/src/plugins/nat/nat_api.c
@@ -435,13 +435,16 @@ static void
   for (i = 0; i < count; i++)
     {
       if (mp->is_add)
-       snat_add_address (sm, &this_addr, vrf_id);
+       snat_add_address (sm, &this_addr, vrf_id, mp->twice_nat);
       else
-       rv = snat_del_address (sm, this_addr, 0);
+       rv = snat_del_address (sm, this_addr, 0, mp->twice_nat);
 
       if (rv)
        goto send_reply;
 
+      if (sm->out2in_dpo)
+       nat44_add_del_address_dpo (this_addr, mp->is_add);
+
       increment_v4_address (&this_addr);
     }
 
@@ -460,12 +463,14 @@ static void *vl_api_nat44_add_del_address_range_t_print
     {
       s = format (s, " - %U ", format_ip4_address, mp->last_ip_address);
     }
+  s = format (s, "twice_nat %d ", mp->twice_nat);
   FINISH;
 }
 
 static void
 send_nat44_address_details (snat_address_t * a,
-                           unix_shared_memory_queue_t * q, u32 context)
+                           unix_shared_memory_queue_t * q, u32 context,
+                           u8 twice_nat)
 {
   vl_api_nat44_address_details_t *rmp;
   snat_main_t *sm = &snat_main;
@@ -481,6 +486,7 @@ send_nat44_address_details (snat_address_t * a,
     }
   else
     rmp->vrf_id = ~0;
+  rmp->twice_nat = twice_nat;
   rmp->context = context;
 
   vl_msg_api_send_shmem (q, (u8 *) & rmp);
@@ -499,7 +505,9 @@ vl_api_nat44_address_dump_t_handler (vl_api_nat44_address_dump_t * mp)
 
   /* *INDENT-OFF* */
   vec_foreach (a, sm->addresses)
-    send_nat44_address_details (a, q, mp->context);
+    send_nat44_address_details (a, q, mp->context, 0);
+  vec_foreach (a, sm->twice_nat_addresses)
+    send_nat44_address_details (a, q, mp->context, 1);
   /* *INDENT-ON* */
 }
 
@@ -702,7 +710,8 @@ static void
 
   rv = snat_add_static_mapping (local_addr, external_addr, local_port,
                                external_port, vrf_id, mp->addr_only,
-                               external_sw_if_index, proto, mp->is_add);
+                               external_sw_if_index, proto, mp->is_add,
+                               mp->twice_nat);
 
   REPLY_MACRO (VL_API_NAT44_ADD_DEL_STATIC_MAPPING_REPLY);
 }
@@ -723,6 +732,8 @@ static void *vl_api_nat44_add_del_static_mapping_t_print
                clib_net_to_host_u16 (mp->local_port),
                clib_net_to_host_u16 (mp->external_port));
 
+  s = format (s, "twice_nat %d ", mp->twice_nat);
+
   if (mp->vrf_id != ~0)
     s = format (s, "vrf %d", clib_net_to_host_u32 (mp->vrf_id));
 
@@ -753,6 +764,7 @@ send_nat44_static_mapping_details (snat_static_mapping_t * m,
   rmp->vrf_id = htonl (m->vrf_id);
   rmp->protocol = snat_proto_to_ip_proto (m->proto);
   rmp->context = context;
+  rmp->twice_nat = m->twice_nat;
 
   vl_msg_api_send_shmem (q, (u8 *) & rmp);
 }
@@ -777,6 +789,7 @@ send_nat44_static_map_resolve_details (snat_static_map_resolve_t * m,
   rmp->vrf_id = htonl (m->vrf_id);
   rmp->protocol = snat_proto_to_ip_proto (m->proto);
   rmp->context = context;
+  rmp->twice_nat = m->twice_nat;
 
   vl_msg_api_send_shmem (q, (u8 *) & rmp);
 }
@@ -849,7 +862,7 @@ static void
 
   rv =
     snat_add_static_mapping (addr, addr, port, port, vrf_id, mp->addr_only,
-                            sw_if_index, proto, mp->is_add);
+                            sw_if_index, proto, mp->is_add, 0);
 
   REPLY_MACRO (VL_API_NAT44_ADD_DEL_IDENTITY_MAPPING_REPLY);
 }
@@ -973,7 +986,7 @@ static void
 
   VALIDATE_SW_IF_INDEX (mp);
 
-  rv = snat_add_interface_address (sm, sw_if_index, is_del);
+  rv = snat_add_interface_address (sm, sw_if_index, is_del, mp->twice_nat);
 
   BAD_SW_IF_INDEX_LABEL;
 
@@ -986,9 +999,9 @@ static void *vl_api_nat44_add_del_interface_addr_t_print
   u8 *s;
 
   s = format (0, "SCRIPT: nat44_add_del_interface_addr ");
-  s = format (s, "sw_if_index %d %s",
+  s = format (s, "sw_if_index %d twice_nat %d %s",
              clib_host_to_net_u32 (mp->sw_if_index),
-             mp->is_add ? "" : "del");
+             mp->twice_nat, mp->is_add ? "" : "del");
 
   FINISH;
 }
@@ -996,7 +1009,7 @@ static void *vl_api_nat44_add_del_interface_addr_t_print
 static void
 send_nat44_interface_addr_details (u32 sw_if_index,
                                   unix_shared_memory_queue_t * q,
-                                  u32 context)
+                                  u32 context, u8 twice_nat)
 {
   vl_api_nat44_interface_addr_details_t *rmp;
   snat_main_t *sm = &snat_main;
@@ -1006,6 +1019,7 @@ send_nat44_interface_addr_details (u32 sw_if_index,
   rmp->_vl_msg_id =
     ntohs (VL_API_NAT44_INTERFACE_ADDR_DETAILS + sm->msg_id_base);
   rmp->sw_if_index = ntohl (sw_if_index);
+  rmp->twice_nat = twice_nat;
   rmp->context = context;
 
   vl_msg_api_send_shmem (q, (u8 *) & rmp);
@@ -1025,7 +1039,9 @@ vl_api_nat44_interface_addr_dump_t_handler (vl_api_nat44_interface_addr_dump_t
 
   /* *INDENT-OFF* */
   vec_foreach (i, sm->auto_add_sw_if_indices)
-    send_nat44_interface_addr_details(*i, q, mp->context);
+    send_nat44_interface_addr_details(*i, q, mp->context, 0);
+  vec_foreach (i, sm->auto_add_sw_if_indices_twice_nat)
+    send_nat44_interface_addr_details(*i, q, mp->context, 1);
   /* *INDENT-ON* */
 }
 
@@ -1231,7 +1247,7 @@ static void
     nat44_add_del_lb_static_mapping (e_addr,
                                     clib_net_to_host_u16 (mp->external_port),
                                     proto, clib_net_to_host_u32 (mp->vrf_id),
-                                    locals, mp->is_add);
+                                    locals, mp->is_add, mp->twice_nat);
 
   vec_free (locals);
 
@@ -1244,7 +1260,7 @@ static void *vl_api_nat44_add_del_lb_static_mapping_t_print
   u8 *s;
 
   s = format (0, "SCRIPT: nat44_add_del_lb_static_mapping ");
-  s = format (s, "is_add %d\n", mp->is_add);
+  s = format (s, "is_add %d twice_nat %d", mp->is_add, mp->twice_nat);
 
   FINISH;
 }
@@ -1271,6 +1287,7 @@ send_nat44_lb_static_mapping_details (snat_static_mapping_t * m,
   rmp->protocol = snat_proto_to_ip_proto (m->proto);
   rmp->vrf_id = ntohl (m->vrf_id);
   rmp->context = context;
+  rmp->twice_nat = m->twice_nat;
 
   locals = (vl_api_nat44_lb_addr_port_t *) rmp->locals;
   vec_foreach (ap, m->locals)
@@ -1352,6 +1369,63 @@ vl_api_nat44_del_session_t_print (vl_api_nat44_del_session_t * mp,
   FINISH;
 }
 
+static void
+  vl_api_nat44_forwarding_enable_disable_t_handler
+  (vl_api_nat44_forwarding_enable_disable_t * mp)
+{
+  snat_main_t *sm = &snat_main;
+  vl_api_nat44_forwarding_enable_disable_reply_t *rmp;
+  int rv = 0;
+
+  sm->forwarding_enabled = mp->enable != 0;
+
+  REPLY_MACRO (VL_API_NAT44_FORWARDING_ENABLE_DISABLE_REPLY);
+}
+
+static void *vl_api_nat44_forwarding_enable_disable_t_print
+  (vl_api_nat44_forwarding_enable_disable_t * mp, void *handle)
+{
+  u8 *s;
+
+  s = format (0, "SCRIPT: nat44_forwarding_enable_disable ");
+  s = format (s, "enable %d", mp->enable != 0);
+
+  FINISH;
+}
+
+static void
+  vl_api_nat44_forwarding_is_enabled_t_handler
+  (vl_api_nat44_forwarding_is_enabled_t * mp)
+{
+  unix_shared_memory_queue_t *q;
+  snat_main_t *sm = &snat_main;
+  vl_api_nat44_forwarding_is_enabled_reply_t *rmp;
+
+  q = vl_api_client_index_to_input_queue (mp->client_index);
+  if (q == 0)
+    return;
+
+  rmp = vl_msg_api_alloc (sizeof (*rmp));
+  memset (rmp, 0, sizeof (*rmp));
+  rmp->_vl_msg_id =
+    ntohs (VL_API_NAT44_FORWARDING_IS_ENABLED_REPLY + sm->msg_id_base);
+  rmp->context = mp->context;
+
+  rmp->enabled = sm->forwarding_enabled;
+
+  vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void *vl_api_nat44_forwarding_is_enabled_t_print
+  (vl_api_nat44_forwarding_is_enabled_t * mp, void *handle)
+{
+  u8 *s;
+
+  s = format (0, "SCRIPT: nat44_forwarding_is_enabled ");
+
+  FINISH;
+}
+
 /*******************************/
 /*** Deterministic NAT (CGN) ***/
 /*******************************/
@@ -2420,6 +2494,8 @@ _(NAT44_INTERFACE_OUTPUT_FEATURE_DUMP,                                  \
 _(NAT44_ADD_DEL_LB_STATIC_MAPPING, nat44_add_del_lb_static_mapping)     \
 _(NAT44_LB_STATIC_MAPPING_DUMP, nat44_lb_static_mapping_dump)           \
 _(NAT44_DEL_SESSION, nat44_del_session)                                 \
+_(NAT44_FORWARDING_ENABLE_DISABLE, nat44_forwarding_enable_disable)     \
+_(NAT44_FORWARDING_IS_ENABLED, nat44_forwarding_is_enabled)             \
 _(NAT_DET_ADD_DEL_MAP, nat_det_add_del_map)                             \
 _(NAT_DET_FORWARD, nat_det_forward)                                     \
 _(NAT_DET_REVERSE, nat_det_reverse)                                     \