NAT44: identity NAT fix (VPP-1441)
[vpp.git] / src / plugins / nat / nat_api.c
index 8055259..4727826 100644 (file)
@@ -206,7 +206,7 @@ send_nat_worker_details (u32 worker_index, vl_api_registration_t * reg,
   rmp->_vl_msg_id = ntohs (VL_API_NAT_WORKER_DETAILS + sm->msg_id_base);
   rmp->context = context;
   rmp->worker_index = htonl (worker_index);
-  rmp->lcore_id = htonl (w->lcore_id);
+  rmp->lcore_id = htonl (w->cpu_id);
   strncpy ((char *) rmp->name, (char *) w->name, ARRAY_LEN (rmp->name) - 1);
 
   vl_api_send_msg (reg, (u8 *) rmp);
@@ -484,6 +484,152 @@ vl_api_nat_get_timeouts_t_print (vl_api_nat_get_timeouts_t * mp, void *handle)
   FINISH;
 }
 
+static void
+  vl_api_nat_set_addr_and_port_alloc_alg_t_handler
+  (vl_api_nat_set_addr_and_port_alloc_alg_t * mp)
+{
+  snat_main_t *sm = &snat_main;
+  vl_api_nat_set_addr_and_port_alloc_alg_reply_t *rmp;
+  int rv = 0;
+  u16 port_start, port_end;
+
+  if (sm->deterministic)
+    {
+      rv = VNET_API_ERROR_UNSUPPORTED;
+      goto send_reply;
+    }
+
+  switch (mp->alg)
+    {
+    case NAT_ADDR_AND_PORT_ALLOC_ALG_DEFAULT:
+      nat_set_alloc_addr_and_port_default ();
+      break;
+    case NAT_ADDR_AND_PORT_ALLOC_ALG_MAPE:
+      nat_set_alloc_addr_and_port_mape (ntohs (mp->psid), mp->psid_offset,
+                                       mp->psid_length);
+      break;
+    case NAT_ADDR_AND_PORT_ALLOC_ALG_RANGE:
+      port_start = ntohs (mp->start_port);
+      port_end = ntohs (mp->end_port);
+      if (port_end <= port_start)
+       {
+         rv = VNET_API_ERROR_INVALID_VALUE;
+         goto send_reply;
+       }
+      nat_set_alloc_addr_and_port_range (port_start, port_end);
+      break;
+    default:
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      break;
+    }
+
+send_reply:
+  REPLY_MACRO (VL_API_NAT_SET_ADDR_AND_PORT_ALLOC_ALG_REPLY);
+}
+
+static void *vl_api_nat_set_addr_and_port_alloc_alg_t_print
+  (vl_api_nat_set_addr_and_port_alloc_alg_t * mp, void *handle)
+{
+  u8 *s;
+
+  s = format (0, "SCRIPT: nat_set_addr_and_port_alloc_alg ");
+  s = format (s, "alg %d psid_offset %d psid_length %d psid %d start_port %d "
+             "end_port %d\n",
+             ntohl (mp->alg), ntohl (mp->psid_offset),
+             ntohl (mp->psid_length), ntohs (mp->psid),
+             ntohs (mp->start_port), ntohs (mp->end_port));
+
+  FINISH;
+}
+
+static void
+  vl_api_nat_get_addr_and_port_alloc_alg_t_handler
+  (vl_api_nat_get_addr_and_port_alloc_alg_t * mp)
+{
+  snat_main_t *sm = &snat_main;
+  vl_api_nat_get_addr_and_port_alloc_alg_reply_t *rmp;
+  int rv = 0;
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO2 (VL_API_NAT_GET_ADDR_AND_PORT_ALLOC_ALG_REPLY,
+  ({
+    rmp->alg = sm->addr_and_port_alloc_alg;
+    rmp->psid_offset = sm->psid_offset;
+    rmp->psid_length = sm->psid_length;
+    rmp->psid = htons (sm->psid);
+    rmp->start_port = htons (sm->start_port);
+    rmp->end_port = htons (sm->end_port);
+  }))
+  /* *INDENT-ON* */
+}
+
+static void *vl_api_nat_get_addr_and_port_alloc_alg_t_print
+  (vl_api_nat_get_addr_and_port_alloc_alg_t * mp, void *handle)
+{
+  u8 *s;
+
+  s = format (0, "SCRIPT: nat_get_addr_and_port_alloc_alg");
+
+  FINISH;
+}
+
+static void
+vl_api_nat_set_mss_clamping_t_handler (vl_api_nat_set_mss_clamping_t * mp)
+{
+  snat_main_t *sm = &snat_main;
+  vl_api_nat_set_mss_clamping_reply_t *rmp;
+  int rv = 0;
+
+  if (mp->enable)
+    {
+      sm->mss_clamping = ntohs (mp->mss_value);
+      sm->mss_value_net = mp->mss_value;
+    }
+  else
+    sm->mss_clamping = 0;
+
+  REPLY_MACRO (VL_API_NAT_SET_MSS_CLAMPING_REPLY);
+}
+
+static void *
+vl_api_nat_set_mss_clamping_t_print (vl_api_nat_set_mss_clamping_t * mp,
+                                    void *handle)
+{
+  u8 *s;
+
+  s = format (0, "SCRIPT: nat_set_mss_clamping enable %d mss_value %d\n",
+             mp->enable, ntohs (mp->mss_value));
+
+  FINISH;
+}
+
+static void
+vl_api_nat_get_mss_clamping_t_handler (vl_api_nat_get_mss_clamping_t * mp)
+{
+  snat_main_t *sm = &snat_main;
+  vl_api_nat_get_mss_clamping_reply_t *rmp;
+  int rv = 0;
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO2 (VL_API_NAT_GET_MSS_CLAMPING_REPLY,
+  ({
+    rmp->enable = sm->mss_clamping ? 1 : 0;
+    rmp->mss_value = htons (sm->mss_clamping);
+  }))
+  /* *INDENT-ON* */
+}
+
+static void *
+vl_api_nat_get_mss_clamping_t_print (vl_api_nat_get_mss_clamping_t * mp,
+                                    void *handle)
+{
+  u8 *s;
+
+  s = format (0, "SCRIPT: nat_get_mss_clamping");
+
+  FINISH;
+}
+
 /*************/
 /*** NAT44 ***/
 /*************/
@@ -834,7 +980,7 @@ 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,
-                               twice_nat, mp->out2in_only, tag);
+                               twice_nat, mp->out2in_only, tag, 0);
 
   vec_free (tag);
 
@@ -881,7 +1027,7 @@ send_nat44_static_mapping_details (snat_static_mapping_t * m,
   memset (rmp, 0, sizeof (*rmp));
   rmp->_vl_msg_id =
     ntohs (VL_API_NAT44_STATIC_MAPPING_DETAILS + sm->msg_id_base);
-  rmp->addr_only = m->addr_only;
+  rmp->addr_only = is_addr_only_static_mapping (m);
   clib_memcpy (rmp->local_ip_address, &(m->local_addr), 4);
   clib_memcpy (rmp->external_ip_address, &(m->external_addr), 4);
   rmp->external_sw_if_index = ~0;
@@ -891,8 +1037,8 @@ send_nat44_static_mapping_details (snat_static_mapping_t * m,
     rmp->twice_nat = 1;
   else if (m->twice_nat == TWICE_NAT_SELF)
     rmp->self_twice_nat = 1;
-  rmp->out2in_only = m->out2in_only;
-  if (m->addr_only == 0)
+  rmp->out2in_only = is_out2in_only_static_mapping (m);
+  if (rmp->addr_only == 0)
     {
       rmp->protocol = snat_proto_to_ip_proto (m->proto);
       rmp->external_port = htons (m->external_port);
@@ -954,9 +1100,7 @@ vl_api_nat44_static_mapping_dump_t_handler (vl_api_nat44_static_mapping_dump_t
   /* *INDENT-OFF* */
   pool_foreach (m, sm->static_mappings,
   ({
-      if (!vec_len (m->locals) &&
-          ((m->local_port != m->external_port)
-           || (m->local_addr.as_u32 != m->external_addr.as_u32)))
+      if (!is_identity_static_mapping(m) && !is_lb_static_mapping (m))
         send_nat44_static_mapping_details (m, reg, mp->context);
   }));
   /* *INDENT-ON* */
@@ -964,7 +1108,7 @@ vl_api_nat44_static_mapping_dump_t_handler (vl_api_nat44_static_mapping_dump_t
   for (j = 0; j < vec_len (sm->to_resolve); j++)
     {
       rp = sm->to_resolve + j;
-      if (rp->l_addr.as_u32 != 0)
+      if (!rp->identity_nat)
        send_nat44_static_map_resolve_details (rp, reg, mp->context);
     }
 }
@@ -1016,7 +1160,7 @@ static void
 
   rv =
     snat_add_static_mapping (addr, addr, port, port, vrf_id, mp->addr_only,
-                            sw_if_index, proto, mp->is_add, 0, 0, tag);
+                            sw_if_index, proto, mp->is_add, 0, 0, tag, 1);
 
   vec_free (tag);
 
@@ -1037,17 +1181,17 @@ static void *vl_api_nat44_add_del_identity_mapping_t_print
 
   if (mp->addr_only == 0)
     s =
-      format (s, "protocol %d port %d", mp->protocol,
+      format (s, " protocol %d port %d", mp->protocol,
              clib_net_to_host_u16 (mp->port));
 
   if (mp->vrf_id != ~0)
-    s = format (s, "vrf %d", clib_net_to_host_u32 (mp->vrf_id));
+    s = format (s, " vrf %d", clib_net_to_host_u32 (mp->vrf_id));
 
   FINISH;
 }
 
 static void
-send_nat44_identity_mapping_details (snat_static_mapping_t * m,
+send_nat44_identity_mapping_details (snat_static_mapping_t * m, int index,
                                     vl_api_registration_t * reg, u32 context)
 {
   vl_api_nat44_identity_mapping_details_t *rmp;
@@ -1057,11 +1201,11 @@ send_nat44_identity_mapping_details (snat_static_mapping_t * m,
   memset (rmp, 0, sizeof (*rmp));
   rmp->_vl_msg_id =
     ntohs (VL_API_NAT44_IDENTITY_MAPPING_DETAILS + sm->msg_id_base);
-  rmp->addr_only = m->addr_only;
+  rmp->addr_only = is_addr_only_static_mapping (m);
   clib_memcpy (rmp->ip_address, &(m->local_addr), 4);
   rmp->port = htons (m->local_port);
   rmp->sw_if_index = ~0;
-  rmp->vrf_id = htonl (m->vrf_id);
+  rmp->vrf_id = htonl (m->locals[index].vrf_id);
   rmp->protocol = snat_proto_to_ip_proto (m->proto);
   rmp->context = context;
   if (m->tag)
@@ -1114,16 +1258,18 @@ static void
   /* *INDENT-OFF* */
   pool_foreach (m, sm->static_mappings,
   ({
-      if (!vec_len (m->locals) && (m->local_port == m->external_port)
-          && (m->local_addr.as_u32 == m->external_addr.as_u32))
-        send_nat44_identity_mapping_details (m, reg, mp->context);
+      if (is_identity_static_mapping(m) && !is_lb_static_mapping (m))
+        {
+          for (j = 0; j < vec_len (m->locals); j++)
+            send_nat44_identity_mapping_details (m, j, reg, mp->context);
+        }
   }));
   /* *INDENT-ON* */
 
   for (j = 0; j < vec_len (sm->to_resolve); j++)
     {
       rp = sm->to_resolve + j;
-      if (rp->l_addr.as_u32 == 0)
+      if (rp->identity_nat)
        send_nat44_identity_map_resolve_details (rp, reg, mp->context);
     }
 }
@@ -1463,7 +1609,8 @@ static void
     nat44_add_del_lb_static_mapping (e_addr,
                                     clib_net_to_host_u16 (mp->external_port),
                                     proto, locals, mp->is_add, twice_nat,
-                                    mp->out2in_only, tag);
+                                    mp->out2in_only, tag,
+                                    clib_net_to_host_u32 (mp->affinity));
 
   vec_free (locals);
   vec_free (tag);
@@ -1509,7 +1656,7 @@ send_nat44_lb_static_mapping_details (snat_static_mapping_t * m,
     rmp->twice_nat = 1;
   else if (m->twice_nat == TWICE_NAT_SELF)
     rmp->self_twice_nat = 1;
-  rmp->out2in_only = m->out2in_only;
+  rmp->out2in_only = is_out2in_only_static_mapping (m);
   if (m->tag)
     strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
 
@@ -1545,7 +1692,7 @@ static void
   /* *INDENT-OFF* */
   pool_foreach (m, sm->static_mappings,
   ({
-      if (vec_len(m->locals))
+      if (is_lb_static_mapping(m))
         send_nat44_lb_static_mapping_details (m, reg, mp->context);
   }));
   /* *INDENT-ON* */
@@ -2989,8 +3136,12 @@ _(NAT_IPFIX_ENABLE_DISABLE, nat_ipfix_enable_disable)                   \
 _(NAT_SET_REASS, nat_set_reass)                                         \
 _(NAT_GET_REASS, nat_get_reass)                                         \
 _(NAT_REASS_DUMP, nat_reass_dump)                                       \
-_(NAT_SET_TIMEOUTS, nat_set_timeouts)                           \
-_(NAT_GET_TIMEOUTS, nat_get_timeouts)                           \
+_(NAT_SET_TIMEOUTS, nat_set_timeouts)                                   \
+_(NAT_GET_TIMEOUTS, nat_get_timeouts)                                   \
+_(NAT_SET_ADDR_AND_PORT_ALLOC_ALG, nat_set_addr_and_port_alloc_alg)     \
+_(NAT_GET_ADDR_AND_PORT_ALLOC_ALG, nat_get_addr_and_port_alloc_alg)     \
+_(NAT_SET_MSS_CLAMPING, nat_set_mss_clamping)                           \
+_(NAT_GET_MSS_CLAMPING, nat_get_mss_clamping)                           \
 _(NAT44_ADD_DEL_ADDRESS_RANGE, nat44_add_del_address_range)             \
 _(NAT44_INTERFACE_ADD_DEL_FEATURE, nat44_interface_add_del_feature)     \
 _(NAT44_ADD_DEL_STATIC_MAPPING, nat44_add_del_static_mapping)           \