nat: Final NAT44 EI/ED split patch

This patch achieves complete separation of
endpoint-dependent and endpoint-independent IPv4 NAT
features. Some common stuff is also moved to NAT
library.

Type: refactor

Change-Id: I52468b7e2b5ac28958a2baf8e2ea01787322e801
Signed-off-by: Filip Varga <fivarga@cisco.com>

1 files changed, 0 insertions, 2597 deletions

diff --git a/src/plugins/nat/nat44_cli.c b/src/plugins/nat/nat44_cli.c
deleted file mode 100644
index 68c53d05389..00000000000
--- a/src/plugins/nat/nat44_cli.c
+++ /dev/null
@@ -1,2597 +0,0 @@
-/*
- * Copyright (c) 2018 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/**
- * @file
- * @brief NAT44 CLI
- */
-
-#include <nat/nat.h>
-#include <nat/lib/ipfix_logging.h>
-#include <nat/lib/nat_inlines.h>
-#include <nat/nat_inlines.h>
-#include <nat/nat44/inlines.h>
-#include <nat/nat_affinity.h>
-#include <vnet/fib/fib_table.h>
-
-#include <nat/nat44-ei/nat44_ei_ha.h>
-#include <nat/nat44-ei/nat44_ei.h>
-
-#define UNSUPPORTED_IN_ED_MODE_STR \
-  "This command is unsupported in endpoint dependent mode"
-#define SUPPORTED_ONLY_IN_ED_MODE_STR \
-  "This command is supported only in endpoint dependent mode"
-
-static clib_error_t *
-nat44_enable_command_fn (vlib_main_t * vm,
-			 unformat_input_t * input, vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-
-  nat44_config_t c = { 0 };
-  u8 mode_set = 0;
-
-  if (sm->enabled)
-    return clib_error_return (0, "nat44 already enabled");
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    {
-      if (nat44_plugin_enable (c) != 0)
-	return clib_error_return (0, "nat44 enable failed");
-      return 0;
-    }
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (!mode_set && unformat (line_input, "static-mapping-only"))
-	{
-	  mode_set = 1;
-	  c.static_mapping_only = 1;
-	  if (unformat (line_input, "connection-tracking"))
-	    {
-	      c.connection_tracking = 1;
-	    }
-	}
-      else if (!mode_set && unformat (line_input, "out2in-dpo"))
-	{
-	  mode_set = 1;
-	  c.out2in_dpo = 1;
-	}
-      else if (!mode_set && unformat (line_input, "endpoint-dependent"))
-	{
-	  mode_set = 1;
-	  c.endpoint_dependent = 1;
-	}
-      else if (unformat (line_input, "inside-vrf %u", &c.inside_vrf));
-      else if (unformat (line_input, "outside-vrf %u", &c.outside_vrf));
-      else if (unformat (line_input, "users %u", &c.users));
-      else if (unformat (line_input, "sessions %u", &c.sessions));
-      else if (unformat (line_input, "user-sessions %u", &c.user_sessions));
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (!c.sessions)
-    {
-      error = clib_error_return (0, "number of sessions is required");
-      goto done;
-    }
-
-  if (nat44_plugin_enable (c) != 0)
-    error = clib_error_return (0, "nat44 enable failed");
-done:
-  unformat_free (line_input);
-  return error;
-}
-
-static clib_error_t *
-nat44_disable_command_fn (vlib_main_t * vm,
-			  unformat_input_t * input, vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  clib_error_t *error = 0;
-
-  if (!sm->enabled)
-    return clib_error_return (0, "nat44 already disabled");
-
-  if (nat44_plugin_disable () != 0)
-    error = clib_error_return (0, "nat44 disable failed");
-
-  return error;
-}
-
-static clib_error_t *
-set_workers_command_fn (vlib_main_t * vm,
-			unformat_input_t * input, vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  uword *bitmap = 0;
-  int rv = 0;
-  clib_error_t *error = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%U", unformat_bitmap_list, &bitmap))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (bitmap == 0)
-    {
-      error = clib_error_return (0, "List of workers must be specified.");
-      goto done;
-    }
-
-  rv = snat_set_workers (bitmap);
-
-  clib_bitmap_free (bitmap);
-
-  switch (rv)
-    {
-    case VNET_API_ERROR_INVALID_WORKER:
-      error = clib_error_return (0, "Invalid worker(s).");
-      goto done;
-    case VNET_API_ERROR_FEATURE_DISABLED:
-      error = clib_error_return (0,
-				 "Supported only if 2 or more workes available.");
-      goto done;
-    default:
-      break;
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat_show_workers_commnad_fn (vlib_main_t * vm, unformat_input_t * input,
-			     vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  u32 *worker;
-
-  if (sm->num_workers > 1)
-    {
-      vlib_cli_output (vm, "%d workers", vec_len (sm->workers));
-      /* *INDENT-OFF* */
-      vec_foreach (worker, sm->workers)
-        {
-          vlib_worker_thread_t *w =
-            vlib_worker_threads + *worker + sm->first_worker_index;
-          vlib_cli_output (vm, "  %s", w->name);
-        }
-      /* *INDENT-ON* */
-    }
-
-  return 0;
-}
-
-static clib_error_t *
-snat_set_log_level_command_fn (vlib_main_t * vm,
-			       unformat_input_t * input,
-			       vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  snat_main_t *sm = &snat_main;
-  u8 log_level = SNAT_LOG_NONE;
-  clib_error_t *error = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  if (!unformat (line_input, "%d", &log_level))
-    {
-      error = clib_error_return (0, "unknown input '%U'",
-				 format_unformat_error, line_input);
-      goto done;
-    }
-  if (log_level > SNAT_LOG_DEBUG)
-    {
-      error = clib_error_return (0, "unknown logging level '%d'", log_level);
-      goto done;
-    }
-  sm->log_level = log_level;
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-snat_ipfix_logging_enable_disable_command_fn (vlib_main_t * vm,
-					      unformat_input_t * input,
-					      vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  u32 domain_id = 0;
-  u32 src_port = 0;
-  u8 enable = 1;
-  int rv = 0;
-  clib_error_t *error = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    {
-      rv = nat_ipfix_logging_enable_disable (enable, domain_id,
-					     (u16) src_port);
-      if (rv)
-	return clib_error_return (0, "ipfix logging enable failed");
-      return 0;
-    }
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "domain %d", &domain_id))
-	;
-      else if (unformat (line_input, "src-port %d", &src_port))
-	;
-      else if (unformat (line_input, "disable"))
-	enable = 0;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  rv = nat_ipfix_logging_enable_disable (enable, domain_id, (u16) src_port);
-
-  if (rv)
-    {
-      error = clib_error_return (0, "ipfix logging enable failed");
-      goto done;
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat44_show_hash_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			    vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  snat_main_per_thread_data_t *tsm;
-  nat_affinity_main_t *nam = &nat_affinity_main;
-  int i;
-  int verbose = 0;
-
-  if (unformat (input, "detail"))
-    verbose = 1;
-  else if (unformat (input, "verbose"))
-    verbose = 2;
-
-  vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->static_mapping_by_local,
-		   verbose);
-  vlib_cli_output (vm, "%U",
-		   format_bihash_8_8, &sm->static_mapping_by_external,
-		   verbose);
-  if (sm->endpoint_dependent)
-    {
-      vlib_cli_output (vm, "%U", format_bihash_16_8, &sm->flow_hash, verbose);
-    }
-  else
-    {
-      vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->in2out, verbose);
-      vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->out2in, verbose);
-    }
-  vec_foreach_index (i, sm->per_thread_data)
-  {
-    tsm = vec_elt_at_index (sm->per_thread_data, i);
-    vlib_cli_output (vm, "-------- thread %d %s --------\n",
-		     i, vlib_worker_threads[i].name);
-    vlib_cli_output (vm, "%U", format_bihash_8_8, &tsm->user_hash, verbose);
-  }
-
-  if (sm->endpoint_dependent)
-    {
-      vlib_cli_output (vm, "%U", format_bihash_16_8, &nam->affinity_hash,
-		       verbose);
-    }
-
-  vlib_cli_output (vm, "-------- hash table parameters --------\n");
-  vlib_cli_output (vm, "translation buckets: %u", sm->translation_buckets);
-  if (!sm->endpoint_dependent)
-    {
-      vlib_cli_output (vm, "user buckets: %u", sm->user_buckets);
-    }
-  return 0;
-}
-
-static clib_error_t *
-nat44_set_alloc_addr_and_port_alg_command_fn (vlib_main_t * vm,
-					      unformat_input_t * input,
-					      vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-  u32 psid, psid_offset, psid_length, port_start, port_end;
-  snat_main_t *sm = &snat_main;
-
-  if (sm->endpoint_dependent)
-    return clib_error_return (0, UNSUPPORTED_IN_ED_MODE_STR);
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "default"))
-	nat44_ei_set_alloc_default ();
-      else
-	if (unformat
-	    (line_input, "map-e psid %d psid-offset %d psid-len %d", &psid,
-	     &psid_offset, &psid_length))
-	nat44_ei_set_alloc_mape ((u16) psid, (u16) psid_offset,
-				 (u16) psid_length);
-      else
-	if (unformat
-	    (line_input, "port-range %d - %d", &port_start, &port_end))
-	{
-	  if (port_end <= port_start)
-	    {
-	      error =
-		clib_error_return (0,
-				   "The end-port must be greater than start-port");
-	      goto done;
-	    }
-	  nat44_ei_set_alloc_range ((u16) port_start, (u16) port_end);
-	}
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-};
-
-static clib_error_t *
-nat44_show_alloc_addr_and_port_alg_command_fn (vlib_main_t * vm,
-					       unformat_input_t * input,
-					       vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-
-  vlib_cli_output (vm, "NAT address and port: %U",
-		   format_nat_addr_and_port_alloc_alg,
-		   sm->addr_and_port_alloc_alg);
-  switch (sm->addr_and_port_alloc_alg)
-    {
-    case NAT_ADDR_AND_PORT_ALLOC_ALG_MAPE:
-      vlib_cli_output (vm, "  psid %d psid-offset %d psid-len %d", sm->psid,
-		       sm->psid_offset, sm->psid_length);
-      break;
-    case NAT_ADDR_AND_PORT_ALLOC_ALG_RANGE:
-      vlib_cli_output (vm, "  start-port %d end-port %d", sm->start_port,
-		       sm->end_port);
-      break;
-    default:
-      break;
-    }
-
-  return 0;
-}
-
-static clib_error_t *
-nat_set_mss_clamping_command_fn (vlib_main_t * vm, unformat_input_t * input,
-				 vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  snat_main_t *sm = &snat_main;
-  clib_error_t *error = 0;
-  u32 mss;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "disable"))
-	sm->mss_clamping = 0;
-      else if (unformat (line_input, "%d", &mss))
-	sm->mss_clamping = (u16) mss;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat_show_mss_clamping_command_fn (vlib_main_t * vm, unformat_input_t * input,
-				  vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-
-  if (sm->mss_clamping)
-    vlib_cli_output (vm, "mss-clamping %d", sm->mss_clamping);
-  else
-    vlib_cli_output (vm, "mss-clamping disabled");
-
-  return 0;
-}
-
-static clib_error_t *
-nat_ha_failover_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			    vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  ip4_address_t addr;
-  u32 port, session_refresh_interval = 10;
-  int rv;
-  clib_error_t *error = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%U:%u", unformat_ip4_address, &addr, &port))
-	;
-      else
-	if (unformat
-	    (line_input, "refresh-interval %u", &session_refresh_interval))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  rv = nat_ha_set_failover (&addr, (u16) port, session_refresh_interval);
-  if (rv)
-    error = clib_error_return (0, "set HA failover failed");
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat_ha_listener_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			    vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  ip4_address_t addr;
-  u32 port, path_mtu = 512;
-  int rv;
-  clib_error_t *error = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%U:%u", unformat_ip4_address, &addr, &port))
-	;
-      else if (unformat (line_input, "path-mtu %u", &path_mtu))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  rv = nat_ha_set_listener (&addr, (u16) port, path_mtu);
-  if (rv)
-    error = clib_error_return (0, "set HA listener failed");
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat_show_ha_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			vlib_cli_command_t * cmd)
-{
-  ip4_address_t addr;
-  u16 port;
-  u32 path_mtu, session_refresh_interval, resync_ack_missed;
-  u8 in_resync;
-
-  nat_ha_get_listener (&addr, &port, &path_mtu);
-  if (!port)
-    {
-      vlib_cli_output (vm, "NAT HA disabled\n");
-      return 0;
-    }
-
-  vlib_cli_output (vm, "LISTENER:\n");
-  vlib_cli_output (vm, "  %U:%u path-mtu %u\n",
-		   format_ip4_address, &addr, port, path_mtu);
-
-  nat_ha_get_failover (&addr, &port, &session_refresh_interval);
-  vlib_cli_output (vm, "FAILOVER:\n");
-  if (port)
-    vlib_cli_output (vm, "  %U:%u refresh-interval %usec\n",
-		     format_ip4_address, &addr, port,
-		     session_refresh_interval);
-  else
-    vlib_cli_output (vm, "  NA\n");
-
-  nat_ha_get_resync_status (&in_resync, &resync_ack_missed);
-  vlib_cli_output (vm, "RESYNC:\n");
-  if (in_resync)
-    vlib_cli_output (vm, "  in progress\n");
-  else
-    vlib_cli_output (vm, "  completed (%d ACK missed)\n", resync_ack_missed);
-
-  return 0;
-}
-
-static clib_error_t *
-nat_ha_flush_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			 vlib_cli_command_t * cmd)
-{
-  nat_ha_flush (0);
-  return 0;
-}
-
-static clib_error_t *
-nat_ha_resync_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			  vlib_cli_command_t * cmd)
-{
-  clib_error_t *error = 0;
-
-  if (nat_ha_resync (0, 0, 0))
-    error = clib_error_return (0, "NAT HA resync already running");
-
-  return error;
-}
-
-static clib_error_t *
-add_address_command_fn (vlib_main_t * vm,
-			unformat_input_t * input, vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  snat_main_t *sm = &snat_main;
-  ip4_address_t start_addr, end_addr, this_addr;
-  u32 start_host_order, end_host_order;
-  u32 vrf_id = ~0;
-  int i, count;
-  int is_add = 1;
-  int rv = 0;
-  clib_error_t *error = 0;
-  u8 twice_nat = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%U - %U",
-		    unformat_ip4_address, &start_addr,
-		    unformat_ip4_address, &end_addr))
-	;
-      else if (unformat (line_input, "tenant-vrf %u", &vrf_id))
-	;
-      else if (unformat (line_input, "%U", unformat_ip4_address, &start_addr))
-	end_addr = start_addr;
-      else if (unformat (line_input, "twice-nat"))
-	twice_nat = 1;
-      else if (unformat (line_input, "del"))
-	is_add = 0;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (sm->static_mapping_only)
-    {
-      error = clib_error_return (0, "static mapping only mode");
-      goto done;
-    }
-
-  start_host_order = clib_host_to_net_u32 (start_addr.as_u32);
-  end_host_order = clib_host_to_net_u32 (end_addr.as_u32);
-
-  if (end_host_order < start_host_order)
-    {
-      error = clib_error_return (0, "end address less than start address");
-      goto done;
-    }
-
-  count = (end_host_order - start_host_order) + 1;
-
-  if (count > 1024)
-    nat_log_info ("%U - %U, %d addresses...",
-		  format_ip4_address, &start_addr,
-		  format_ip4_address, &end_addr, count);
-
-  this_addr = start_addr;
-
-  for (i = 0; i < count; i++)
-    {
-      if (is_add)
-	rv = snat_add_address (sm, &this_addr, vrf_id, twice_nat);
-      else
-	rv = snat_del_address (sm, this_addr, 0, twice_nat);
-
-      switch (rv)
-	{
-	case VNET_API_ERROR_VALUE_EXIST:
-	  error = clib_error_return (0, "NAT address already in use.");
-	  goto done;
-	case VNET_API_ERROR_NO_SUCH_ENTRY:
-	  error = clib_error_return (0, "NAT address not exist.");
-	  goto done;
-	case VNET_API_ERROR_UNSPECIFIED:
-	  error =
-	    clib_error_return (0, "NAT address used in static mapping.");
-	  goto done;
-	case VNET_API_ERROR_FEATURE_DISABLED:
-	  error =
-	    clib_error_return (0,
-			       "twice NAT available only for endpoint-dependent mode.");
-	  goto done;
-	default:
-	  break;
-	}
-
-      if (sm->out2in_dpo)
-	nat44_add_del_address_dpo (this_addr, is_add);
-
-      increment_v4_address (&this_addr);
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static void
-nat44_show_lru_summary (vlib_main_t * vm, snat_main_per_thread_data_t * tsm,
-			u64 now, u64 sess_timeout_time)
-{
-  snat_main_t *sm = &snat_main;
-  dlist_elt_t *oldest_elt;
-  snat_session_t *s;
-  u32 oldest_index;
-
-#define _(n, d)                                                          \
-  oldest_index =                                                         \
-      clib_dlist_remove_head (tsm->lru_pool, tsm->n##_lru_head_index);   \
-  if (~0 != oldest_index)                                                \
-    {                                                                    \
-      oldest_elt = pool_elt_at_index (tsm->lru_pool, oldest_index);      \
-      s = pool_elt_at_index (tsm->sessions, oldest_elt->value);          \
-      sess_timeout_time =                                                \
-          s->last_heard + (f64)nat44_session_get_timeout (sm, s);        \
-      vlib_cli_output (vm, d " LRU min session timeout %llu (now %llu)", \
-                       sess_timeout_time, now);                          \
-      clib_dlist_addhead (tsm->lru_pool, tsm->n##_lru_head_index,        \
-                          oldest_index);                                 \
-    }
-  _(tcp_estab, "established tcp");
-  _(tcp_trans, "transitory tcp");
-  _(udp, "udp");
-  _(unk_proto, "unknown protocol");
-  _(icmp, "icmp");
-#undef _
-}
-
-static clib_error_t *
-nat44_show_summary_command_fn (vlib_main_t * vm, unformat_input_t * input,
-			       vlib_cli_command_t * cmd)
-{
-  snat_main_per_thread_data_t *tsm;
-  snat_main_t *sm = &snat_main;
-  snat_session_t *s;
-
-  if (!sm->endpoint_dependent)
-    return clib_error_return (0, SUPPORTED_ONLY_IN_ED_MODE_STR);
-
-  u32 count = 0;
-
-  u64 now = vlib_time_now (vm);
-  u64 sess_timeout_time = 0;
-
-  u32 udp_sessions = 0;
-  u32 tcp_sessions = 0;
-  u32 icmp_sessions = 0;
-
-  u32 timed_out = 0;
-  u32 transitory = 0;
-  u32 transitory_wait_closed = 0;
-  u32 transitory_closed = 0;
-  u32 established = 0;
-
-  u32 fib;
-
-  for (fib = 0; fib < vec_len (sm->max_translations_per_fib); fib++)
-    vlib_cli_output (vm, "max translations per thread: %u fib %u",
-		     sm->max_translations_per_fib[fib], fib);
-
-  if (sm->num_workers > 1)
-    {
-      /* *INDENT-OFF* */
-      vec_foreach (tsm, sm->per_thread_data)
-        {
-          pool_foreach (s, tsm->sessions)
-           {
-            sess_timeout_time = s->last_heard +
-	      (f64) nat44_session_get_timeout (sm, s);
-            if (now >= sess_timeout_time)
-              timed_out++;
-
-            switch (s->nat_proto)
-              {
-              case NAT_PROTOCOL_ICMP:
-                icmp_sessions++;
-                break;
-              case NAT_PROTOCOL_TCP:
-                tcp_sessions++;
-                if (s->state)
-                  {
-                    if (s->tcp_closed_timestamp)
-                      {
-                        if (now >= s->tcp_closed_timestamp)
-                          {
-                            ++transitory_closed;
-                          }
-                        else
-                          {
-                            ++transitory_wait_closed;
-                          }
-                      }
-                    transitory++;
-                  }
-                else
-                  established++;
-                break;
-              case NAT_PROTOCOL_UDP:
-              default:
-                udp_sessions++;
-                break;
-              }
-          }
-          nat44_show_lru_summary (vm, tsm, now, sess_timeout_time);
-          count += pool_elts (tsm->sessions);
-        }
-      /* *INDENT-ON* */
-    }
-  else
-    {
-      tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
-      /* *INDENT-OFF* */
-      pool_foreach (s, tsm->sessions)
-       {
-        sess_timeout_time = s->last_heard +
-	    (f64) nat44_session_get_timeout (sm, s);
-        if (now >= sess_timeout_time)
-          timed_out++;
-
-        switch (s->nat_proto)
-          {
-          case NAT_PROTOCOL_ICMP:
-            icmp_sessions++;
-            break;
-          case NAT_PROTOCOL_TCP:
-            tcp_sessions++;
-            if (s->state)
-              {
-                if (s->tcp_closed_timestamp)
-                  {
-                    if (now >= s->tcp_closed_timestamp)
-                      {
-                        ++transitory_closed;
-                      }
-                    else
-                      {
-                        ++transitory_wait_closed;
-                      }
-                  }
-                transitory++;
-              }
-            else
-              established++;
-            break;
-          case NAT_PROTOCOL_UDP:
-          default:
-            udp_sessions++;
-            break;
-          }
-      }
-      /* *INDENT-ON* */
-      nat44_show_lru_summary (vm, tsm, now, sess_timeout_time);
-      count = pool_elts (tsm->sessions);
-    }
-
-  vlib_cli_output (vm, "total timed out sessions: %u", timed_out);
-  vlib_cli_output (vm, "total sessions: %u", count);
-  vlib_cli_output (vm, "total tcp sessions: %u", tcp_sessions);
-  vlib_cli_output (vm, "total tcp established sessions: %u", established);
-  vlib_cli_output (vm, "total tcp transitory sessions: %u", transitory);
-  vlib_cli_output (vm, "total tcp transitory (WAIT-CLOSED) sessions: %u",
-		   transitory_wait_closed);
-  vlib_cli_output (vm, "total tcp transitory (CLOSED) sessions: %u",
-		   transitory_closed);
-  vlib_cli_output (vm, "total udp sessions: %u", udp_sessions);
-  vlib_cli_output (vm, "total icmp sessions: %u", icmp_sessions);
-  return 0;
-}
-
-static clib_error_t *
-nat44_show_addresses_command_fn (vlib_main_t * vm, unformat_input_t * input,
-				 vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  snat_address_t *ap;
-
-  vlib_cli_output (vm, "NAT44 pool addresses:");
-  /* *INDENT-OFF* */
-  vec_foreach (ap, sm->addresses)
-    {
-      vlib_cli_output (vm, "%U", format_ip4_address, &ap->addr);
-      if (ap->fib_index != ~0)
-          vlib_cli_output (vm, "  tenant VRF: %u",
-            fib_table_get(ap->fib_index, FIB_PROTOCOL_IP4)->ft_table_id);
-      else
-        vlib_cli_output (vm, "  tenant VRF independent");
-    #define _(N, i, n, s) \
-      vlib_cli_output (vm, "  %d busy %s ports", ap->busy_##n##_ports, s);
-      foreach_nat_protocol
-    #undef _
-    }
-  vlib_cli_output (vm, "NAT44 twice-nat pool addresses:");
-  vec_foreach (ap, sm->twice_nat_addresses)
-    {
-      vlib_cli_output (vm, "%U", format_ip4_address, &ap->addr);
-      if (ap->fib_index != ~0)
-          vlib_cli_output (vm, "  tenant VRF: %u",
-            fib_table_get(ap->fib_index, FIB_PROTOCOL_IP4)->ft_table_id);
-      else
-        vlib_cli_output (vm, "  tenant VRF independent");
-    #define _(N, i, n, s) \
-      vlib_cli_output (vm, "  %d busy %s ports", ap->busy_##n##_ports, s);
-      foreach_nat_protocol
-    #undef _
-    }
-  /* *INDENT-ON* */
-  return 0;
-}
-
-static clib_error_t *
-snat_feature_command_fn (vlib_main_t * vm,
-			 unformat_input_t * input, vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  vnet_main_t *vnm = vnet_get_main ();
-  clib_error_t *error = 0;
-  u32 sw_if_index;
-  u32 *inside_sw_if_indices = 0;
-  u32 *outside_sw_if_indices = 0;
-  u8 is_output_feature = 0;
-  int is_del = 0;
-  int i;
-
-  sw_if_index = ~0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "in %U", unformat_vnet_sw_interface,
-		    vnm, &sw_if_index))
-	vec_add1 (inside_sw_if_indices, sw_if_index);
-      else if (unformat (line_input, "out %U", unformat_vnet_sw_interface,
-			 vnm, &sw_if_index))
-	vec_add1 (outside_sw_if_indices, sw_if_index);
-      else if (unformat (line_input, "output-feature"))
-	is_output_feature = 1;
-      else if (unformat (line_input, "del"))
-	is_del = 1;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (vec_len (inside_sw_if_indices))
-    {
-      for (i = 0; i < vec_len (inside_sw_if_indices); i++)
-	{
-	  sw_if_index = inside_sw_if_indices[i];
-	  if (is_output_feature)
-	    {
-	      if (snat_interface_add_del_output_feature
-		  (sw_if_index, 1, is_del))
-		{
-		  error = clib_error_return (0, "%s %U failed",
-					     is_del ? "del" : "add",
-					     format_vnet_sw_if_index_name,
-					     vnm, sw_if_index);
-		  goto done;
-		}
-	    }
-	  else
-	    {
-	      if (snat_interface_add_del (sw_if_index, 1, is_del))
-		{
-		  error = clib_error_return (0, "%s %U failed",
-					     is_del ? "del" : "add",
-					     format_vnet_sw_if_index_name,
-					     vnm, sw_if_index);
-		  goto done;
-		}
-	    }
-	}
-    }
-
-  if (vec_len (outside_sw_if_indices))
-    {
-      for (i = 0; i < vec_len (outside_sw_if_indices); i++)
-	{
-	  sw_if_index = outside_sw_if_indices[i];
-	  if (is_output_feature)
-	    {
-	      if (snat_interface_add_del_output_feature
-		  (sw_if_index, 0, is_del))
-		{
-		  error = clib_error_return (0, "%s %U failed",
-					     is_del ? "del" : "add",
-					     format_vnet_sw_if_index_name,
-					     vnm, sw_if_index);
-		  goto done;
-		}
-	    }
-	  else
-	    {
-	      if (snat_interface_add_del (sw_if_index, 0, is_del))
-		{
-		  error = clib_error_return (0, "%s %U failed",
-					     is_del ? "del" : "add",
-					     format_vnet_sw_if_index_name,
-					     vnm, sw_if_index);
-		  goto done;
-		}
-	    }
-	}
-    }
-
-done:
-  unformat_free (line_input);
-  vec_free (inside_sw_if_indices);
-  vec_free (outside_sw_if_indices);
-
-  return error;
-}
-
-static clib_error_t *
-nat44_show_interfaces_command_fn (vlib_main_t * vm, unformat_input_t * input,
-				  vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  snat_interface_t *i;
-  vnet_main_t *vnm = vnet_get_main ();
-
-  vlib_cli_output (vm, "NAT44 interfaces:");
-  /* *INDENT-OFF* */
-  pool_foreach (i, sm->interfaces)
-   {
-    vlib_cli_output (vm, " %U %s", format_vnet_sw_if_index_name, vnm,
-                     i->sw_if_index,
-                     (nat_interface_is_inside(i) &&
-                      nat_interface_is_outside(i)) ? "in out" :
-                     (nat_interface_is_inside(i) ? "in" : "out"));
-  }
-
-  pool_foreach (i, sm->output_feature_interfaces)
-   {
-    vlib_cli_output (vm, " %U output-feature %s",
-                     format_vnet_sw_if_index_name, vnm,
-                     i->sw_if_index,
-                     (nat_interface_is_inside(i) &&
-                      nat_interface_is_outside(i)) ? "in out" :
-                     (nat_interface_is_inside(i) ? "in" : "out"));
-  }
-  /* *INDENT-ON* */
-
-  return 0;
-}
-
-static clib_error_t *
-add_static_mapping_command_fn (vlib_main_t * vm,
-			       unformat_input_t * input,
-			       vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-  ip4_address_t l_addr, e_addr, exact_addr;
-  u32 l_port = 0, e_port = 0, vrf_id = ~0;
-  int is_add = 1, addr_only = 1, rv, exact = 0;
-  u32 sw_if_index = ~0;
-  vnet_main_t *vnm = vnet_get_main ();
-  nat_protocol_t proto = NAT_PROTOCOL_OTHER;
-  u8 proto_set = 0;
-  twice_nat_type_t twice_nat = TWICE_NAT_DISABLED;
-  u8 out2in_only = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "local %U %u", unformat_ip4_address, &l_addr,
-		    &l_port))
-	addr_only = 0;
-      else
-	if (unformat (line_input, "local %U", unformat_ip4_address, &l_addr))
-	;
-      else if (unformat (line_input, "external %U %u", unformat_ip4_address,
-			 &e_addr, &e_port))
-	addr_only = 0;
-      else if (unformat (line_input, "external %U", unformat_ip4_address,
-			 &e_addr))
-	;
-      else if (unformat (line_input, "external %U %u",
-			 unformat_vnet_sw_interface, vnm, &sw_if_index,
-			 &e_port))
-	addr_only = 0;
-      else if (unformat (line_input, "external %U",
-			 unformat_vnet_sw_interface, vnm, &sw_if_index))
-	;
-      else if (unformat (line_input, "exact %U", unformat_ip4_address,
-			 &exact_addr))
-	exact = 1;
-      else if (unformat (line_input, "vrf %u", &vrf_id))
-	;
-      else if (unformat (line_input, "%U", unformat_nat_protocol, &proto))
-	proto_set = 1;
-      else if (unformat (line_input, "twice-nat"))
-	twice_nat = TWICE_NAT;
-      else if (unformat (line_input, "self-twice-nat"))
-	twice_nat = TWICE_NAT_SELF;
-      else if (unformat (line_input, "out2in-only"))
-	out2in_only = 1;
-      else if (unformat (line_input, "del"))
-	is_add = 0;
-      else
-	{
-	  error = clib_error_return (0, "unknown input: '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (twice_nat && addr_only)
-    {
-      error = clib_error_return (0, "twice NAT only for 1:1 NAPT");
-      goto done;
-    }
-
-  if (addr_only)
-    {
-      if (proto_set)
-	{
-	  error =
-	    clib_error_return (0,
-			       "address only mapping doesn't support protocol");
-	  goto done;
-	}
-    }
-  else if (!proto_set)
-    {
-      error = clib_error_return (0, "protocol is required");
-      goto done;
-    }
-
-  rv = snat_add_static_mapping (
-    l_addr, e_addr, clib_host_to_net_u16 (l_port),
-    clib_host_to_net_u16 (e_port), vrf_id, addr_only, sw_if_index, proto,
-    is_add, twice_nat, out2in_only, 0, 0, exact_addr, exact);
-
-  switch (rv)
-    {
-    case VNET_API_ERROR_INVALID_VALUE:
-      error = clib_error_return (0, "External port already in use.");
-      goto done;
-    case VNET_API_ERROR_NO_SUCH_ENTRY:
-      if (is_add)
-	error = clib_error_return (0, "External address must be allocated.");
-      else
-	error = clib_error_return (0, "Mapping not exist.");
-      goto done;
-    case VNET_API_ERROR_NO_SUCH_FIB:
-      error = clib_error_return (0, "No such VRF id.");
-      goto done;
-    case VNET_API_ERROR_VALUE_EXIST:
-      error = clib_error_return (0, "Mapping already exist.");
-      goto done;
-    case VNET_API_ERROR_FEATURE_DISABLED:
-      error =
-	clib_error_return (0,
-			   "twice-nat/out2in-only available only for endpoint-dependent mode.");
-      goto done;
-    default:
-      break;
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-add_identity_mapping_command_fn (vlib_main_t * vm,
-				 unformat_input_t * input,
-				 vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-  ip4_address_t addr, pool_addr = { 0 };
-  u32 port = 0, vrf_id = ~0;
-  int is_add = 1;
-  int addr_only = 1;
-  u32 sw_if_index = ~0;
-  vnet_main_t *vnm = vnet_get_main ();
-  int rv;
-  nat_protocol_t proto;
-
-  addr.as_u32 = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%U", unformat_ip4_address, &addr))
-	;
-      else if (unformat (line_input, "external %U",
-			 unformat_vnet_sw_interface, vnm, &sw_if_index))
-	;
-      else if (unformat (line_input, "vrf %u", &vrf_id))
-	;
-      else if (unformat (line_input, "%U %u", unformat_nat_protocol, &proto,
-			 &port))
-	addr_only = 0;
-      else if (unformat (line_input, "del"))
-	is_add = 0;
-      else
-	{
-	  error = clib_error_return (0, "unknown input: '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  rv = snat_add_static_mapping (
-    addr, addr, clib_host_to_net_u16 (port), clib_host_to_net_u16 (port),
-    vrf_id, addr_only, sw_if_index, proto, is_add, 0, 0, 0, 1, pool_addr, 0);
-
-  switch (rv)
-    {
-    case VNET_API_ERROR_INVALID_VALUE:
-      error = clib_error_return (0, "External port already in use.");
-      goto done;
-    case VNET_API_ERROR_NO_SUCH_ENTRY:
-      if (is_add)
-	error = clib_error_return (0, "External address must be allocated.");
-      else
-	error = clib_error_return (0, "Mapping not exist.");
-      goto done;
-    case VNET_API_ERROR_NO_SUCH_FIB:
-      error = clib_error_return (0, "No such VRF id.");
-      goto done;
-    case VNET_API_ERROR_VALUE_EXIST:
-      error = clib_error_return (0, "Mapping already exist.");
-      goto done;
-    default:
-      break;
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-add_lb_static_mapping_command_fn (vlib_main_t * vm,
-				  unformat_input_t * input,
-				  vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-  ip4_address_t l_addr, e_addr;
-  u32 l_port = 0, e_port = 0, vrf_id = 0, probability = 0, affinity = 0;
-  int is_add = 1;
-  int rv;
-  nat_protocol_t proto;
-  u8 proto_set = 0;
-  nat44_lb_addr_port_t *locals = 0, local;
-  twice_nat_type_t twice_nat = TWICE_NAT_DISABLED;
-  u8 out2in_only = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "local %U:%u probability %u",
-		    unformat_ip4_address, &l_addr, &l_port, &probability))
-	{
-	  clib_memset (&local, 0, sizeof (local));
-	  local.addr = l_addr;
-	  local.port = (u16) l_port;
-	  local.probability = (u8) probability;
-	  vec_add1 (locals, local);
-	}
-      else if (unformat (line_input, "local %U:%u vrf %u probability %u",
-			 unformat_ip4_address, &l_addr, &l_port, &vrf_id,
-			 &probability))
-	{
-	  clib_memset (&local, 0, sizeof (local));
-	  local.addr = l_addr;
-	  local.port = (u16) l_port;
-	  local.probability = (u8) probability;
-	  local.vrf_id = vrf_id;
-	  vec_add1 (locals, local);
-	}
-      else if (unformat (line_input, "external %U:%u", unformat_ip4_address,
-			 &e_addr, &e_port))
-	;
-      else if (unformat (line_input, "protocol %U", unformat_nat_protocol,
-			 &proto))
-	proto_set = 1;
-      else if (unformat (line_input, "twice-nat"))
-	twice_nat = TWICE_NAT;
-      else if (unformat (line_input, "self-twice-nat"))
-	twice_nat = TWICE_NAT_SELF;
-      else if (unformat (line_input, "out2in-only"))
-	out2in_only = 1;
-      else if (unformat (line_input, "del"))
-	is_add = 0;
-      else if (unformat (line_input, "affinity %u", &affinity))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input: '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (vec_len (locals) < 2)
-    {
-      error = clib_error_return (0, "at least two local must be set");
-      goto done;
-    }
-
-  if (!proto_set)
-    {
-      error = clib_error_return (0, "missing protocol");
-      goto done;
-    }
-
-  rv = nat44_add_del_lb_static_mapping (e_addr, (u16) e_port, proto, locals,
-					is_add, twice_nat, out2in_only, 0,
-					affinity);
-
-  switch (rv)
-    {
-    case VNET_API_ERROR_INVALID_VALUE:
-      error = clib_error_return (0, "External port already in use.");
-      goto done;
-    case VNET_API_ERROR_NO_SUCH_ENTRY:
-      if (is_add)
-	error = clib_error_return (0, "External address must be allocated.");
-      else
-	error = clib_error_return (0, "Mapping not exist.");
-      goto done;
-    case VNET_API_ERROR_VALUE_EXIST:
-      error = clib_error_return (0, "Mapping already exist.");
-      goto done;
-    case VNET_API_ERROR_FEATURE_DISABLED:
-      error =
-	clib_error_return (0, "Available only for endpoint-dependent mode.");
-      goto done;
-    default:
-      break;
-    }
-
-done:
-  unformat_free (line_input);
-  vec_free (locals);
-
-  return error;
-}
-
-static clib_error_t *
-add_lb_backend_command_fn (vlib_main_t * vm,
-			   unformat_input_t * input, vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-  ip4_address_t l_addr, e_addr;
-  u32 l_port = 0, e_port = 0, vrf_id = 0, probability = 0;
-  int is_add = 1;
-  int rv;
-  nat_protocol_t proto;
-  u8 proto_set = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "local %U:%u probability %u",
-		    unformat_ip4_address, &l_addr, &l_port, &probability))
-	;
-      else if (unformat (line_input, "local %U:%u vrf %u probability %u",
-			 unformat_ip4_address, &l_addr, &l_port, &vrf_id,
-			 &probability))
-	;
-      else if (unformat (line_input, "external %U:%u", unformat_ip4_address,
-			 &e_addr, &e_port))
-	;
-      else if (unformat (line_input, "protocol %U", unformat_nat_protocol,
-			 &proto))
-	proto_set = 1;
-      else if (unformat (line_input, "del"))
-	is_add = 0;
-      else
-	{
-	  error = clib_error_return (0, "unknown input: '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (!l_port || !e_port)
-    {
-      error = clib_error_return (0, "local or external must be set");
-      goto done;
-    }
-
-  if (!proto_set)
-    {
-      error = clib_error_return (0, "missing protocol");
-      goto done;
-    }
-
-  rv =
-    nat44_lb_static_mapping_add_del_local (e_addr, (u16) e_port, l_addr,
-					   l_port, proto, vrf_id, probability,
-					   is_add);
-
-  switch (rv)
-    {
-    case VNET_API_ERROR_INVALID_VALUE:
-      error = clib_error_return (0, "External is not load-balancing static "
-				 "mapping.");
-      goto done;
-    case VNET_API_ERROR_NO_SUCH_ENTRY:
-      error = clib_error_return (0, "Mapping or back-end not exist.");
-      goto done;
-    case VNET_API_ERROR_VALUE_EXIST:
-      error = clib_error_return (0, "Back-end already exist.");
-      goto done;
-    case VNET_API_ERROR_FEATURE_DISABLED:
-      error =
-	clib_error_return (0, "Available only for endpoint-dependent mode.");
-      goto done;
-    case VNET_API_ERROR_UNSPECIFIED:
-      error = clib_error_return (0, "At least two back-ends must remain");
-      goto done;
-    default:
-      break;
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat44_show_static_mappings_command_fn (vlib_main_t * vm,
-				       unformat_input_t * input,
-				       vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  snat_static_mapping_t *m;
-  snat_static_map_resolve_t *rp;
-
-  vlib_cli_output (vm, "NAT44 static mappings:");
-  /* *INDENT-OFF* */
-  pool_foreach (m, sm->static_mappings)
-   {
-    vlib_cli_output (vm, " %U", format_snat_static_mapping, m);
-  }
-  vec_foreach (rp, sm->to_resolve)
-    vlib_cli_output (vm, " %U", format_snat_static_map_to_resolve, rp);
-  /* *INDENT-ON* */
-
-  return 0;
-}
-
-static clib_error_t *
-snat_add_interface_address_command_fn (vlib_main_t * vm,
-				       unformat_input_t * input,
-				       vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  unformat_input_t _line_input, *line_input = &_line_input;
-  u32 sw_if_index;
-  int rv;
-  int is_del = 0;
-  clib_error_t *error = 0;
-  u8 twice_nat = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%U", unformat_vnet_sw_interface,
-		    sm->vnet_main, &sw_if_index))
-	;
-      else if (unformat (line_input, "twice-nat"))
-	twice_nat = 1;
-      else if (unformat (line_input, "del"))
-	is_del = 1;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  rv = snat_add_interface_address (sm, sw_if_index, is_del, twice_nat);
-
-  switch (rv)
-    {
-    case 0:
-      break;
-
-    default:
-      error = clib_error_return (0, "snat_add_interface_address returned %d",
-				 rv);
-      goto done;
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat44_show_interface_address_command_fn (vlib_main_t * vm,
-					 unformat_input_t * input,
-					 vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  vnet_main_t *vnm = vnet_get_main ();
-  u32 *sw_if_index;
-
-  /* *INDENT-OFF* */
-  vlib_cli_output (vm, "NAT44 pool address interfaces:");
-  vec_foreach (sw_if_index, sm->auto_add_sw_if_indices)
-    {
-      vlib_cli_output (vm, " %U", format_vnet_sw_if_index_name, vnm,
-                       *sw_if_index);
-    }
-  vlib_cli_output (vm, "NAT44 twice-nat pool address interfaces:");
-  vec_foreach (sw_if_index, sm->auto_add_sw_if_indices_twice_nat)
-    {
-      vlib_cli_output (vm, " %U", format_vnet_sw_if_index_name, vnm,
-                       *sw_if_index);
-    }
-  /* *INDENT-ON* */
-
-  return 0;
-}
-
-static clib_error_t *
-nat44_show_sessions_command_fn (vlib_main_t * vm, unformat_input_t * input,
-				vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-
-  snat_main_per_thread_data_t *tsm;
-  snat_main_t *sm = &snat_main;
-
-  int detail = 0;
-  int i = 0;
-
-  if (!unformat_user (input, unformat_line_input, line_input))
-    goto print;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "detail"))
-	detail = 1;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  break;
-	}
-    }
-  unformat_free (line_input);
-
-print:
-  if (!sm->endpoint_dependent)
-    vlib_cli_output (vm, "NAT44 sessions:");
-  else
-    vlib_cli_output (vm, "NAT44 ED sessions:");
-
-  /* *INDENT-OFF* */
-  vec_foreach_index (i, sm->per_thread_data)
-    {
-      tsm = vec_elt_at_index (sm->per_thread_data, i);
-
-      vlib_cli_output (vm, "-------- thread %d %s: %d sessions --------\n",
-                       i, vlib_worker_threads[i].name,
-                       pool_elts (tsm->sessions));
-
-      if (!sm->endpoint_dependent)
-        {
-          snat_user_t *u;
-          pool_foreach (u, tsm->users)
-           {
-            vlib_cli_output (vm, "  %U", format_snat_user, tsm, u, detail);
-          }
-        }
-      else
-        {
-          snat_session_t *s;
-          pool_foreach (s, tsm->sessions)
-           {
-            vlib_cli_output (vm, "  %U\n", format_snat_session, tsm, s);
-          }
-        }
-    }
-  /* *INDENT-ON* */
-  return error;
-}
-
-static clib_error_t *
-nat44_set_session_limit_command_fn (vlib_main_t * vm,
-				    unformat_input_t * input,
-				    vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-
-  u32 session_limit = 0, vrf_id = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%u", &session_limit))
-	;
-      else if (unformat (line_input, "vrf %u", &vrf_id))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (!session_limit)
-    error = clib_error_return (0, "missing value of session limit");
-  else if (nat44_update_session_limit (session_limit, vrf_id))
-    error = clib_error_return (0, "nat44_set_session_limit failed");
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat44_del_user_command_fn (vlib_main_t * vm,
-			   unformat_input_t * input, vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-  ip4_address_t addr;
-  u32 fib_index = 0;
-  int rv;
-
-  if (sm->endpoint_dependent)
-    return clib_error_return (0, UNSUPPORTED_IN_ED_MODE_STR);
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%U", unformat_ip4_address, &addr))
-	;
-      else if (unformat (line_input, "fib %u", &fib_index))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  rv = nat44_ei_user_del (&addr, fib_index);
-
-  if (!rv)
-    {
-      error = clib_error_return (0, "nat44_ei_user_del returned %d", rv);
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-nat44_clear_sessions_command_fn (vlib_main_t * vm,
-				 unformat_input_t * input,
-				 vlib_cli_command_t * cmd)
-{
-  clib_error_t *error = 0;
-  nat44_sessions_clear ();
-  return error;
-}
-
-static clib_error_t *
-nat44_del_session_command_fn (vlib_main_t * vm,
-			      unformat_input_t * input,
-			      vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  unformat_input_t _line_input, *line_input = &_line_input;
-  int is_in = 0, is_ed = 0;
-  clib_error_t *error = 0;
-  ip4_address_t addr, eh_addr;
-  u32 port = 0, eh_port = 0, vrf_id = sm->outside_vrf_id;
-  nat_protocol_t proto;
-  int rv;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat
-	  (line_input, "%U:%u %U", unformat_ip4_address, &addr, &port,
-	   unformat_nat_protocol, &proto))
-	;
-      else if (unformat (line_input, "in"))
-	{
-	  is_in = 1;
-	  vrf_id = sm->inside_vrf_id;
-	}
-      else if (unformat (line_input, "out"))
-	{
-	  is_in = 0;
-	  vrf_id = sm->outside_vrf_id;
-	}
-      else if (unformat (line_input, "vrf %u", &vrf_id))
-	;
-      else
-	if (unformat
-	    (line_input, "external-host %U:%u", unformat_ip4_address,
-	     &eh_addr, &eh_port))
-	is_ed = 1;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (is_ed)
-    rv =
-      nat44_del_ed_session (sm, &addr, clib_host_to_net_u16 (port), &eh_addr,
-			    clib_host_to_net_u16 (eh_port),
-			    nat_proto_to_ip_proto (proto), vrf_id, is_in);
-  else
-    rv = nat44_ei_del_session (sm, &addr, clib_host_to_net_u16 (port), proto,
-			       vrf_id, is_in);
-
-  switch (rv)
-    {
-    case 0:
-      break;
-
-    default:
-      error = clib_error_return (0, "nat44_del_session returned %d", rv);
-      goto done;
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-snat_forwarding_set_command_fn (vlib_main_t * vm,
-				unformat_input_t * input,
-				vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  unformat_input_t _line_input, *line_input = &_line_input;
-  u8 forwarding_enable;
-  u8 forwarding_enable_set = 0;
-  clib_error_t *error = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return clib_error_return (0, "'enable' or 'disable' expected");
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (!forwarding_enable_set && unformat (line_input, "enable"))
-	{
-	  forwarding_enable = 1;
-	  forwarding_enable_set = 1;
-	}
-      else if (!forwarding_enable_set && unformat (line_input, "disable"))
-	{
-	  forwarding_enable = 0;
-	  forwarding_enable_set = 1;
-	}
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (!forwarding_enable_set)
-    {
-      error = clib_error_return (0, "'enable' or 'disable' expected");
-      goto done;
-    }
-
-  sm->forwarding_enabled = forwarding_enable;
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-static clib_error_t *
-set_timeout_command_fn (vlib_main_t * vm,
-			unformat_input_t * input, vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "udp %u", &sm->timeouts.udp));
-      else if (unformat (line_input, "tcp-established %u",
-			 &sm->timeouts.tcp.established));
-      else if (unformat (line_input, "tcp-transitory %u",
-			 &sm->timeouts.tcp.transitory));
-      else if (unformat (line_input, "icmp %u", &sm->timeouts.icmp));
-      else if (unformat (line_input, "reset"))
-	nat_reset_timeouts (&sm->timeouts);
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-done:
-  unformat_free (line_input);
-  return error;
-}
-
-static clib_error_t *
-nat_show_timeouts_command_fn (vlib_main_t * vm,
-			      unformat_input_t * input,
-			      vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-
-  vlib_cli_output (vm, "udp timeout: %dsec", sm->timeouts.udp);
-  vlib_cli_output (vm, "tcp-established timeout: %dsec",
-		   sm->timeouts.tcp.established);
-  vlib_cli_output (vm, "tcp-transitory timeout: %dsec",
-		   sm->timeouts.tcp.transitory);
-  vlib_cli_output (vm, "icmp timeout: %dsec", sm->timeouts.icmp);
-
-  return 0;
-}
-
-static clib_error_t *
-set_frame_queue_nelts_command_fn (vlib_main_t *vm, unformat_input_t *input,
-				  vlib_cli_command_t *cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-  u32 frame_queue_nelts = 0;
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%u", &frame_queue_nelts))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-  if (!frame_queue_nelts)
-    {
-      error = clib_error_return (0, "frame_queue_nelts cannot be zero");
-      goto done;
-    }
-  if (snat_set_frame_queue_nelts (frame_queue_nelts) != 0)
-    {
-      error = clib_error_return (0, "snat_set_frame_queue_nelts failed");
-      goto done;
-    }
-done:
-  unformat_free (line_input);
-  return error;
-}
-
-static clib_error_t *
-nat44_debug_fib_expire_command_fn (vlib_main_t * vm,
-				   unformat_input_t * input,
-				   vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  clib_error_t *error = 0;
-  u32 fib = ~0;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "%u", &fib))
-	;
-      else
-	{
-	  error = clib_error_return (0, "unknown input '%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-  expire_per_vrf_sessions (fib);
-done:
-  unformat_free (line_input);
-  return error;
-}
-
-static clib_error_t *
-nat44_debug_fib_registration_command_fn (vlib_main_t * vm,
-					 unformat_input_t * input,
-					 vlib_cli_command_t * cmd)
-{
-  snat_main_t *sm = &snat_main;
-  snat_main_per_thread_data_t *tsm;
-  per_vrf_sessions_t *per_vrf_sessions;
-
-  vlib_cli_output (vm, "VRF registration debug:");
-  vec_foreach (tsm, sm->per_thread_data)
-  {
-    vlib_cli_output (vm, "thread %u:", tsm->thread_index);
-    vec_foreach (per_vrf_sessions, tsm->per_vrf_sessions_vec)
-    {
-      vlib_cli_output (vm, "rx fib %u tx fib %u ses count %u %s",
-		       per_vrf_sessions->rx_fib_index,
-		       per_vrf_sessions->tx_fib_index,
-		       per_vrf_sessions->ses_count,
-		       per_vrf_sessions->expired ? "expired" : "");
-    }
-  }
-  return 0;
-}
-
-/* *INDENT-OFF* */
-
-/*?
-?*/
-VLIB_CLI_COMMAND (nat44_debug_fib_expire_command, static) = {
-  .path = "debug nat44 fib expire",
-  .short_help = "debug nat44 fib expire <fib-index>",
-  .function = nat44_debug_fib_expire_command_fn,
-};
-
-/*?
-?*/
-VLIB_CLI_COMMAND (nat44_debug_fib_registration_command, static) = {
-  .path = "debug nat44 fib registration",
-  .short_help = "debug nat44 fib registration",
-  .function = nat44_debug_fib_registration_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 enable}
- * Enable nat44 plugin
- * To enable nat44, use:
- *  vpp# nat44 enable sessions <n>
- * To enable nat44 static mapping only, use:
- *  vpp# nat44 enable sessions <n> static-mapping
- * To enable nat44 static mapping with connection tracking, use:
- *  vpp# nat44 enable sessions <n> static-mapping connection-tracking
- * To enable nat44 out2in dpo, use:
- *  vpp# nat44 enable sessions <n> out2in-dpo
- * To enable nat44 endpoint-dependent, use:
- *  vpp# nat44 enable sessions <n> endpoint-dependent
- * To set inside-vrf outside-vrf, use:
- *  vpp# nat44 enable sessions <n> inside-vrf <id> outside-vrf <id>
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_enable_command, static) = {
-  .path = "nat44 enable",
-  .short_help = "nat44 enable sessions <max-number> [users <max-number>] [static-mappig-only [connection-tracking]|out2in-dpo|endpoint-dependent] [inside-vrf <vrf-id>] [outside-vrf <vrf-id>] [user-sessions <max-number>]",
-  .function = nat44_enable_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 disable}
- * Disable nat44 plugin
- * To disable nat44, use:
- *  vpp# nat44 disable
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_disable_command, static) = {
-  .path = "nat44 disable",
-  .short_help = "nat44 disable",
-  .function = nat44_disable_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{set snat workers}
- * Set NAT workers if 2 or more workers available, use:
- *  vpp# set snat workers 0-2,5
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (set_workers_command, static) = {
-  .path = "set nat workers",
-  .function = set_workers_command_fn,
-  .short_help = "set nat workers <workers-list>",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat workers}
- * Show NAT workers.
- *  vpp# show nat workers:
- *  2 workers
- *    vpp_wk_0
- *    vpp_wk_1
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_show_workers_command, static) = {
-  .path = "show nat workers",
-  .short_help = "show nat workers",
-  .function = nat_show_workers_commnad_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{set nat timeout}
- * Set values of timeouts for NAT sessions (in seconds), use:
- *  vpp# set nat timeout udp 120 tcp-established 7500 tcp-transitory 250 icmp 90
- * To reset default values use:
- *  vpp# set nat timeout reset
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (set_timeout_command, static) = {
-  .path = "set nat timeout",
-  .function = set_timeout_command_fn,
-  .short_help =
-    "set nat timeout [udp <sec> | tcp-established <sec> "
-    "tcp-transitory <sec> | icmp <sec> | reset]",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat timeouts}
- * Show values of timeouts for NAT sessions.
- * vpp# show nat timeouts
- * udp timeout: 300sec
- * tcp-established timeout: 7440sec
- * tcp-transitory timeout: 240sec
- * icmp timeout: 60sec
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_show_timeouts_command, static) = {
-  .path = "show nat timeouts",
-  .short_help = "show nat timeouts",
-  .function = nat_show_timeouts_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{set nat frame-queue-nelts}
- * Set number of worker handoff frame queue elements.
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (set_frame_queue_nelts_command, static) = {
-  .path = "set nat frame-queue-nelts",
-  .function = set_frame_queue_nelts_command_fn,
-  .short_help = "set nat frame-queue-nelts <number>",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat set logging level}
- * To set NAT logging level use:
- * Set nat logging level
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_set_log_level_command, static) = {
-  .path = "nat set logging level",
-  .function = snat_set_log_level_command_fn,
-  .short_help = "nat set logging level <level>",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{snat ipfix logging}
- * To enable NAT IPFIX logging use:
- *  vpp# nat ipfix logging
- * To set IPFIX exporter use:
- *  vpp# set ipfix exporter collector 10.10.10.3 src 10.10.10.1
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_ipfix_logging_enable_disable_command, static) = {
-  .path = "nat ipfix logging",
-  .function = snat_ipfix_logging_enable_disable_command_fn,
-  .short_help = "nat ipfix logging [domain <domain-id>] [src-port <port>] [disable]",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat addr-port-assignment-alg}
- * Set address and port assignment algorithm
- * For the MAP-E CE limit port choice based on PSID use:
- *  vpp# nat addr-port-assignment-alg map-e psid 10 psid-offset 6 psid-len 6
- * For port range use:
- *  vpp# nat addr-port-assignment-alg port-range <start-port> - <end-port>
- * To set standard (default) address and port assignment algorithm use:
- *  vpp# nat addr-port-assignment-alg default
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_set_alloc_addr_and_port_alg_command, static) = {
-    .path = "nat addr-port-assignment-alg",
-    .short_help = "nat addr-port-assignment-alg <alg-name> [<alg-params>]",
-    .function = nat44_set_alloc_addr_and_port_alg_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat addr-port-assignment-alg}
- * Show address and port assignment algorithm
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_show_alloc_addr_and_port_alg_command, static) = {
-    .path = "show nat addr-port-assignment-alg",
-    .short_help = "show nat addr-port-assignment-alg",
-    .function = nat44_show_alloc_addr_and_port_alg_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat mss-clamping}
- * Set TCP MSS rewriting configuration
- * To enable TCP MSS rewriting use:
- *  vpp# nat mss-clamping 1452
- * To disbale TCP MSS rewriting use:
- *  vpp# nat mss-clamping disable
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_set_mss_clamping_command, static) = {
-    .path = "nat mss-clamping",
-    .short_help = "nat mss-clamping <mss-value>|disable",
-    .function = nat_set_mss_clamping_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat mss-clamping}
- * Show TCP MSS rewriting configuration
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_show_mss_clamping_command, static) = {
-    .path = "show nat mss-clamping",
-    .short_help = "show nat mss-clamping",
-    .function = nat_show_mss_clamping_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat ha failover}
- * Set HA failover (remote settings)
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_ha_failover_command, static) = {
-    .path = "nat ha failover",
-    .short_help = "nat ha failover <ip4-address>:<port> [refresh-interval <sec>]",
-    .function = nat_ha_failover_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat ha listener}
- * Set HA listener (local settings)
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_ha_listener_command, static) = {
-    .path = "nat ha listener",
-    .short_help = "nat ha listener <ip4-address>:<port> [path-mtu <path-mtu>]",
-    .function = nat_ha_listener_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat ha}
- * Show HA configuration/status
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_show_ha_command, static) = {
-    .path = "show nat ha",
-    .short_help = "show nat ha",
-    .function = nat_show_ha_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat ha flush}
- * Flush the current HA data (for testing)
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_ha_flush_command, static) = {
-    .path = "nat ha flush",
-    .short_help = "nat ha flush",
-    .function = nat_ha_flush_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat ha resync}
- * Resync HA (resend existing sessions to new failover)
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat_ha_resync_command, static) = {
-    .path = "nat ha resync",
-    .short_help = "nat ha resync",
-    .function = nat_ha_resync_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat44 hash tables}
- * Show NAT44 hash tables
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_show_hash, static) = {
-  .path = "show nat44 hash tables",
-  .short_help = "show nat44 hash tables [detail|verbose]",
-  .function = nat44_show_hash_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 add address}
- * Add/delete NAT44 pool address.
- * To add NAT44 pool address use:
- *  vpp# nat44 add address 172.16.1.3
- *  vpp# nat44 add address 172.16.2.2 - 172.16.2.24
- * To add NAT44 pool address for specific tenant (identified by VRF id) use:
- *  vpp# nat44 add address 172.16.1.3 tenant-vrf 10
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (add_address_command, static) = {
-  .path = "nat44 add address",
-  .short_help = "nat44 add address <ip4-range-start> [- <ip4-range-end>] "
-                "[tenant-vrf <vrf-id>] [twice-nat] [del]",
-  .function = add_address_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat44 summary}
- * Show NAT44 summary
- * vpp# show nat44 summary
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_show_summary_command, static) = {
-  .path = "show nat44 summary",
-  .short_help = "show nat44 summary",
-  .function = nat44_show_summary_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat44 addresses}
- * Show NAT44 pool addresses.
- * vpp# show nat44 addresses
- * NAT44 pool addresses:
- * 172.16.2.2
- *   tenant VRF independent
- *   10 busy udp ports
- *   0 busy tcp ports
- *   0 busy icmp ports
- * 172.16.1.3
- *   tenant VRF: 10
- *   0 busy udp ports
- *   2 busy tcp ports
- *   0 busy icmp ports
- * NAT44 twice-nat pool addresses:
- * 10.20.30.72
- *   tenant VRF independent
- *   0 busy udp ports
- *   0 busy tcp ports
- *   0 busy icmp ports
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_show_addresses_command, static) = {
-  .path = "show nat44 addresses",
-  .short_help = "show nat44 addresses",
-  .function = nat44_show_addresses_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{set interface nat44}
- * Enable/disable NAT44 feature on the interface.
- * To enable NAT44 feature with local network interface use:
- *  vpp# set interface nat44 in GigabitEthernet0/8/0
- * To enable NAT44 feature with external network interface use:
- *  vpp# set interface nat44 out GigabitEthernet0/a/0
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (set_interface_snat_command, static) = {
-  .path = "set interface nat44",
-  .function = snat_feature_command_fn,
-  .short_help = "set interface nat44 in <intfc> out <intfc> [output-feature] "
-                "[del]",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat44 interfaces}
- * Show interfaces with NAT44 feature.
- * vpp# show nat44 interfaces
- * NAT44 interfaces:
- *  GigabitEthernet0/8/0 in
- *  GigabitEthernet0/a/0 out
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_show_interfaces_command, static) = {
-  .path = "show nat44 interfaces",
-  .short_help = "show nat44 interfaces",
-  .function = nat44_show_interfaces_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 add static mapping}
- * Static mapping allows hosts on the external network to initiate connection
- * to to the local network host.
- * To create static mapping between local host address 10.0.0.3 port 6303 and
- * external address 4.4.4.4 port 3606 for TCP protocol use:
- *  vpp# nat44 add static mapping tcp local 10.0.0.3 6303 external 4.4.4.4 3606
- * If not runnig "static mapping only" NAT plugin mode use before:
- *  vpp# nat44 add address 4.4.4.4
- * To create address only static mapping between local and external address use:
- *  vpp# nat44 add static mapping local 10.0.0.3 external 4.4.4.4
- * To create ICMP static mapping between local and external with ICMP echo
- * identifier 10 use:
- *  vpp# nat44 add static mapping icmp local 10.0.0.3 10 external 4.4.4.4 10
- * To force use of specific pool address, vrf independent
- *  vpp# nat44 add static mapping local 10.0.0.2 1234 external 10.0.2.2 1234 twice-nat exact 10.0.1.2
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (add_static_mapping_command, static) = {
-  .path = "nat44 add static mapping",
-  .function = add_static_mapping_command_fn,
-  .short_help =
-    "nat44 add static mapping tcp|udp|icmp local <addr> [<port|icmp-echo-id>] "
-    "external <addr> [<port|icmp-echo-id>] [vrf <table-id>] [twice-nat|self-twice-nat] "
-    "[out2in-only] [exact <pool-addr>] [del]",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 add identity mapping}
- * Identity mapping translate an IP address to itself.
- * To create identity mapping for address 10.0.0.3 port 6303 for TCP protocol
- * use:
- *  vpp# nat44 add identity mapping 10.0.0.3 tcp 6303
- * To create identity mapping for address 10.0.0.3 use:
- *  vpp# nat44 add identity mapping 10.0.0.3
- * To create identity mapping for DHCP addressed interface use:
- *  vpp# nat44 add identity mapping external GigabitEthernet0/a/0 tcp 3606
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (add_identity_mapping_command, static) = {
-  .path = "nat44 add identity mapping",
-  .function = add_identity_mapping_command_fn,
-  .short_help = "nat44 add identity mapping <ip4-addr>|external <interface> "
-    "[<protocol> <port>] [vrf <table-id>] [del]",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 add load-balancing static mapping}
- * Service load balancing using NAT44
- * To add static mapping with load balancing for service with external IP
- * address 1.2.3.4 and TCP port 80 and mapped to 2 local servers
- * 10.100.10.10:8080 and 10.100.10.20:8080 with probability 80% resp. 20% use:
- *  vpp# nat44 add load-balancing static mapping protocol tcp external 1.2.3.4:80 local 10.100.10.10:8080 probability 80 local 10.100.10.20:8080 probability 20
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (add_lb_static_mapping_command, static) = {
-  .path = "nat44 add load-balancing static mapping",
-  .function = add_lb_static_mapping_command_fn,
-  .short_help =
-    "nat44 add load-balancing static mapping protocol tcp|udp "
-    "external <addr>:<port> local <addr>:<port> [vrf <table-id>] "
-    "probability <n> [twice-nat|self-twice-nat] [out2in-only] "
-    "[affinity <timeout-seconds>] [del]",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 add load-balancing static mapping}
- * Modify service load balancing using NAT44
- * To add new back-end server 10.100.10.30:8080 for service load balancing
- * static mapping with external IP address 1.2.3.4 and TCP port 80 use:
- *  vpp# nat44 add load-balancing back-end protocol tcp external 1.2.3.4:80 local 10.100.10.30:8080 probability 25
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (add_lb_backend_command, static) = {
-  .path = "nat44 add load-balancing back-end",
-  .function = add_lb_backend_command_fn,
-  .short_help =
-    "nat44 add load-balancing back-end protocol tcp|udp "
-    "external <addr>:<port> local <addr>:<port> [vrf <table-id>] "
-    "probability <n> [del]",
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat44 static mappings}
- * Show NAT44 static mappings.
- * vpp# show nat44 static mappings
- * NAT44 static mappings:
- *  local 10.0.0.3 external 4.4.4.4 vrf 0
- *  tcp local 192.168.0.4:6303 external 4.4.4.3:3606 vrf 0
- *  tcp vrf 0 external 1.2.3.4:80  out2in-only
- *   local 10.100.10.10:8080 probability 80
- *   local 10.100.10.20:8080 probability 20
- *  tcp local 10.100.3.8:8080 external 169.10.10.1:80 vrf 0 twice-nat
- *  tcp local 10.0.0.10:3603 external GigabitEthernet0/a/0:6306 vrf 10
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_show_static_mappings_command, static) = {
-  .path = "show nat44 static mappings",
-  .short_help = "show nat44 static mappings",
-  .function = nat44_show_static_mappings_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 add interface address}
- * Use NAT44 pool address from specific interfce
- * To add NAT44 pool address from specific interface use:
- *  vpp# nat44 add interface address GigabitEthernet0/8/0
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_add_interface_address_command, static) = {
-    .path = "nat44 add interface address",
-    .short_help = "nat44 add interface address <interface> [twice-nat] [del]",
-    .function = snat_add_interface_address_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat44 interface address}
- * Show NAT44 pool address interfaces
- * vpp# show nat44 interface address
- * NAT44 pool address interfaces:
- *  GigabitEthernet0/a/0
- * NAT44 twice-nat pool address interfaces:
- *  GigabitEthernet0/8/0
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_show_interface_address_command, static) = {
-  .path = "show nat44 interface address",
-  .short_help = "show nat44 interface address",
-  .function = nat44_show_interface_address_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{show nat44 sessions}
- * Show NAT44 sessions.
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_show_sessions_command, static) = {
-  .path = "show nat44 sessions",
-  .short_help = "show nat44 sessions [detail|metrics]",
-  .function = nat44_show_sessions_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{set nat44 session limit}
- * Set NAT44 session limit.
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_set_session_limit_command, static) = {
-  .path = "set nat44 session limit",
-  .short_help = "set nat44 session limit <limit> [vrf <table-id>]",
-  .function = nat44_set_session_limit_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 del user}
- * To delete all NAT44 user sessions:
- *  vpp# nat44 del user 10.0.0.3
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_del_user_command, static) = {
-    .path = "nat44 del user",
-    .short_help = "nat44 del user <addr> [fib <index>]",
-    .function = nat44_del_user_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{clear nat44 sessions}
- * To clear all NAT44 sessions
- *  vpp# clear nat44 sessions
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_clear_sessions_command, static) = {
-    .path = "clear nat44 sessions",
-    .short_help = "clear nat44 sessions",
-    .function = nat44_clear_sessions_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 del session}
- * To administratively delete NAT44 session by inside address and port use:
- *  vpp# nat44 del session in 10.0.0.3:6303 tcp
- * To administratively delete NAT44 session by outside address and port use:
- *  vpp# nat44 del session out 1.0.0.3:6033 udp
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (nat44_del_session_command, static) = {
-    .path = "nat44 del session",
-    .short_help = "nat44 del session in|out <addr>:<port> tcp|udp|icmp [vrf <id>] [external-host <addr>:<port>]",
-    .function = nat44_del_session_command_fn,
-};
-
-/*?
- * @cliexpar
- * @cliexstart{nat44 forwarding}
- * Enable or disable forwarding
- * Forward packets which don't match existing translation
- * or static mapping instead of dropping them.
- * To enable forwarding, use:
- *  vpp# nat44 forwarding enable
- * To disable forwarding, use:
- *  vpp# nat44 forwarding disable
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_forwarding_set_command, static) = {
-  .path = "nat44 forwarding",
-  .short_help = "nat44 forwarding enable|disable",
-  .function = snat_forwarding_set_command_fn,
-};
-
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */