hs-test: added filenames to test names
[vpp.git] / src / plugins / nat / nat44-ei / nat44_ei_api.c
1 /*
2  * Copyright (c) 2020 Cisco and/or its affiliates.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at:
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 #include <vnet/ip/ip_types_api.h>
18 #include <vlibmemory/api.h>
19
20 #include <vnet/fib/fib_table.h>
21
22 #include <nat/lib/nat_inlines.h>
23 #include <nat/lib/ipfix_logging.h>
24
25 #include <nat/nat44-ei/nat44_ei.api_enum.h>
26 #include <nat/nat44-ei/nat44_ei.api_types.h>
27
28 #include <nat/nat44-ei/nat44_ei_ha.h>
29 #include <nat/nat44-ei/nat44_ei.h>
30
31 #define REPLY_MSG_ID_BASE nm->msg_id_base
32 #include <vlibapi/api_helper_macros.h>
33
34 static void
35 vl_api_nat44_ei_show_running_config_t_handler (
36   vl_api_nat44_ei_show_running_config_t *mp)
37 {
38   vl_api_nat44_ei_show_running_config_reply_t *rmp;
39   nat44_ei_main_t *nm = &nat44_ei_main;
40   nat44_ei_config_t *rc = &nm->rconfig;
41   int rv = 0;
42
43   REPLY_MACRO2_ZERO (
44     VL_API_NAT44_EI_SHOW_RUNNING_CONFIG_REPLY, ({
45       rmp->inside_vrf = htonl (rc->inside_vrf);
46       rmp->outside_vrf = htonl (rc->outside_vrf);
47       rmp->users = htonl (rc->users);
48       rmp->sessions = htonl (rc->sessions);
49       rmp->user_sessions = htonl (rc->user_sessions);
50
51       rmp->user_buckets = htonl (nm->user_buckets);
52       rmp->translation_buckets = htonl (nm->translation_buckets);
53
54       rmp->timeouts.udp = htonl (nm->timeouts.udp);
55       rmp->timeouts.tcp_established = htonl (nm->timeouts.tcp.established);
56       rmp->timeouts.tcp_transitory = htonl (nm->timeouts.tcp.transitory);
57       rmp->timeouts.icmp = htonl (nm->timeouts.icmp);
58
59       rmp->forwarding_enabled = nm->forwarding_enabled == 1;
60       // consider how to split functionality between subplugins
61       rmp->ipfix_logging_enabled = nat_ipfix_logging_enabled ();
62
63       if (rc->static_mapping_only)
64         rmp->flags |= NAT44_EI_STATIC_MAPPING_ONLY;
65       if (rc->connection_tracking)
66         rmp->flags |= NAT44_EI_CONNECTION_TRACKING;
67       if (rc->out2in_dpo)
68         rmp->flags |= NAT44_EI_OUT2IN_DPO;
69     }));
70 }
71
72 static void
73 vl_api_nat44_ei_set_workers_t_handler (vl_api_nat44_ei_set_workers_t *mp)
74 {
75   nat44_ei_main_t *nm = &nat44_ei_main;
76   vl_api_nat44_ei_set_workers_reply_t *rmp;
77   int rv = 0;
78   uword *bitmap = 0;
79   u64 mask;
80
81   mask = clib_net_to_host_u64 (mp->worker_mask);
82
83   if (nm->num_workers < 2)
84     {
85       rv = VNET_API_ERROR_FEATURE_DISABLED;
86       goto send_reply;
87     }
88
89   bitmap = clib_bitmap_set_multiple (bitmap, 0, mask, BITS (mask));
90   rv = nat44_ei_set_workers (bitmap);
91   clib_bitmap_free (bitmap);
92
93 send_reply:
94   REPLY_MACRO (VL_API_NAT44_EI_SET_WORKERS_REPLY);
95 }
96
97 static void
98 send_nat_worker_details (u32 worker_index, vl_api_registration_t *reg,
99                          u32 context)
100 {
101   vl_api_nat44_ei_worker_details_t *rmp;
102   nat44_ei_main_t *nm = &nat44_ei_main;
103   vlib_worker_thread_t *w =
104     vlib_worker_threads + worker_index + nm->first_worker_index;
105
106   rmp = vl_msg_api_alloc (sizeof (*rmp));
107   clib_memset (rmp, 0, sizeof (*rmp));
108   rmp->_vl_msg_id = ntohs (VL_API_NAT44_EI_WORKER_DETAILS + nm->msg_id_base);
109   rmp->context = context;
110   rmp->worker_index = htonl (worker_index);
111   rmp->lcore_id = htonl (w->cpu_id);
112   strncpy ((char *) rmp->name, (char *) w->name, ARRAY_LEN (rmp->name) - 1);
113
114   vl_api_send_msg (reg, (u8 *) rmp);
115 }
116
117 static void
118 vl_api_nat44_ei_worker_dump_t_handler (vl_api_nat44_ei_worker_dump_t *mp)
119 {
120   vl_api_registration_t *reg;
121   nat44_ei_main_t *nm = &nat44_ei_main;
122   u32 *worker_index;
123
124   reg = vl_api_client_index_to_registration (mp->client_index);
125   if (!reg)
126     return;
127
128   vec_foreach (worker_index, nm->workers)
129     {
130       send_nat_worker_details (*worker_index, reg, mp->context);
131     }
132 }
133
134 static void
135 vl_api_nat44_ei_set_log_level_t_handler (vl_api_nat44_ei_set_log_level_t *mp)
136 {
137   nat44_ei_main_t *nm = &nat44_ei_main;
138   vl_api_nat44_ei_set_log_level_reply_t *rmp;
139   int rv = 0;
140
141   if (nm->log_level > NAT_LOG_DEBUG)
142     rv = VNET_API_ERROR_UNSUPPORTED;
143   else
144     nm->log_level = mp->log_level;
145
146   REPLY_MACRO (VL_API_NAT44_EI_SET_LOG_LEVEL_REPLY);
147 }
148
149 static void
150 vl_api_nat44_ei_plugin_enable_disable_t_handler (
151   vl_api_nat44_ei_plugin_enable_disable_t *mp)
152 {
153   nat44_ei_main_t *nm = &nat44_ei_main;
154   nat44_ei_config_t c = { 0 };
155   vl_api_nat44_ei_plugin_enable_disable_reply_t *rmp;
156   int rv = 0;
157
158   if (mp->enable)
159     {
160       c.static_mapping_only = mp->flags & NAT44_EI_STATIC_MAPPING_ONLY;
161       c.connection_tracking = mp->flags & NAT44_EI_CONNECTION_TRACKING;
162       c.out2in_dpo = mp->flags & NAT44_EI_OUT2IN_DPO;
163
164       c.inside_vrf = ntohl (mp->inside_vrf);
165       c.outside_vrf = ntohl (mp->outside_vrf);
166
167       c.users = ntohl (mp->users);
168
169       c.sessions = ntohl (mp->sessions);
170
171       c.user_sessions = ntohl (mp->user_sessions);
172
173       rv = nat44_ei_plugin_enable (c);
174     }
175   else
176     {
177       rv = nat44_ei_plugin_disable ();
178     }
179
180   REPLY_MACRO (VL_API_NAT44_EI_PLUGIN_ENABLE_DISABLE_REPLY);
181 }
182
183 static void
184 vl_api_nat44_ei_ipfix_enable_disable_t_handler (
185   vl_api_nat44_ei_ipfix_enable_disable_t *mp)
186 {
187   nat44_ei_main_t *nm = &nat44_ei_main;
188   vl_api_nat44_ei_ipfix_enable_disable_reply_t *rmp;
189   int rv = 0;
190
191   rv = nat_ipfix_logging_enable_disable (mp->enable,
192                                          clib_host_to_net_u32 (mp->domain_id),
193                                          clib_host_to_net_u16 (mp->src_port));
194
195   REPLY_MACRO (VL_API_NAT44_EI_IPFIX_ENABLE_DISABLE_REPLY);
196 }
197
198 static void
199 vl_api_nat44_ei_set_timeouts_t_handler (vl_api_nat44_ei_set_timeouts_t *mp)
200 {
201   nat44_ei_main_t *nm = &nat44_ei_main;
202   vl_api_nat44_ei_set_timeouts_reply_t *rmp;
203   int rv = 0;
204
205   nm->timeouts.udp = ntohl (mp->udp);
206   nm->timeouts.tcp.established = ntohl (mp->tcp_established);
207   nm->timeouts.tcp.transitory = ntohl (mp->tcp_transitory);
208   nm->timeouts.icmp = ntohl (mp->icmp);
209
210   REPLY_MACRO (VL_API_NAT44_EI_SET_TIMEOUTS_REPLY);
211 }
212
213 static void
214 vl_api_nat44_ei_set_addr_and_port_alloc_alg_t_handler (
215   vl_api_nat44_ei_set_addr_and_port_alloc_alg_t *mp)
216 {
217   nat44_ei_main_t *nm = &nat44_ei_main;
218   vl_api_nat44_ei_set_addr_and_port_alloc_alg_reply_t *rmp;
219   int rv = 0;
220   u16 port_start, port_end;
221
222   switch (mp->alg)
223     {
224     case NAT44_EI_ADDR_AND_PORT_ALLOC_ALG_DEFAULT:
225       nat44_ei_set_alloc_default ();
226       break;
227     case NAT44_EI_ADDR_AND_PORT_ALLOC_ALG_MAPE:
228       nat44_ei_set_alloc_mape (ntohs (mp->psid), mp->psid_offset,
229                                mp->psid_length);
230       break;
231     case NAT44_EI_ADDR_AND_PORT_ALLOC_ALG_RANGE:
232       port_start = ntohs (mp->start_port);
233       port_end = ntohs (mp->end_port);
234       if (port_end <= port_start)
235         {
236           rv = VNET_API_ERROR_INVALID_VALUE;
237           goto send_reply;
238         }
239       nat44_ei_set_alloc_range (port_start, port_end);
240       break;
241     default:
242       rv = VNET_API_ERROR_INVALID_VALUE;
243       break;
244     }
245
246 send_reply:
247   REPLY_MACRO (VL_API_NAT44_EI_SET_ADDR_AND_PORT_ALLOC_ALG_REPLY);
248 }
249
250 static void
251 vl_api_nat44_ei_get_addr_and_port_alloc_alg_t_handler (
252   vl_api_nat44_ei_get_addr_and_port_alloc_alg_t *mp)
253 {
254   nat44_ei_main_t *nm = &nat44_ei_main;
255   vl_api_nat44_ei_get_addr_and_port_alloc_alg_reply_t *rmp;
256   int rv = 0;
257
258   REPLY_MACRO2 (VL_API_NAT44_EI_GET_ADDR_AND_PORT_ALLOC_ALG_REPLY, ({
259                   rmp->alg = nm->addr_and_port_alloc_alg;
260                   rmp->psid_offset = nm->psid_offset;
261                   rmp->psid_length = nm->psid_length;
262                   rmp->psid = htons (nm->psid);
263                   rmp->start_port = htons (nm->start_port);
264                   rmp->end_port = htons (nm->end_port);
265                 }))
266 }
267
268 static void
269 vl_api_nat44_ei_set_mss_clamping_t_handler (
270   vl_api_nat44_ei_set_mss_clamping_t *mp)
271 {
272   nat44_ei_main_t *nm = &nat44_ei_main;
273   vl_api_nat44_ei_set_mss_clamping_reply_t *rmp;
274   int rv = 0;
275
276   if (mp->enable)
277     nm->mss_clamping = ntohs (mp->mss_value);
278   else
279     nm->mss_clamping = 0;
280
281   REPLY_MACRO (VL_API_NAT44_EI_SET_MSS_CLAMPING_REPLY);
282 }
283
284 static void
285 vl_api_nat44_ei_get_mss_clamping_t_handler (
286   vl_api_nat44_ei_get_mss_clamping_t *mp)
287 {
288   nat44_ei_main_t *nm = &nat44_ei_main;
289   vl_api_nat44_ei_get_mss_clamping_reply_t *rmp;
290   int rv = 0;
291
292   REPLY_MACRO2 (VL_API_NAT44_EI_GET_MSS_CLAMPING_REPLY, ({
293                   rmp->enable = nm->mss_clamping ? 1 : 0;
294                   rmp->mss_value = htons (nm->mss_clamping);
295                 }))
296 }
297
298 static void
299 vl_api_nat44_ei_ha_set_listener_t_handler (
300   vl_api_nat44_ei_ha_set_listener_t *mp)
301 {
302   nat44_ei_main_t *nm = &nat44_ei_main;
303   vl_api_nat44_ei_ha_set_listener_reply_t *rmp;
304   ip4_address_t addr;
305   int rv;
306
307   memcpy (&addr, &mp->ip_address, sizeof (addr));
308   rv = nat_ha_set_listener (vlib_get_main (), &addr,
309                             clib_net_to_host_u16 (mp->port),
310                             clib_net_to_host_u32 (mp->path_mtu));
311
312   REPLY_MACRO (VL_API_NAT44_EI_HA_SET_LISTENER_REPLY);
313 }
314
315 static void
316 vl_api_nat44_ei_ha_get_listener_t_handler (
317   vl_api_nat44_ei_ha_get_listener_t *mp)
318 {
319   nat44_ei_main_t *nm = &nat44_ei_main;
320   vl_api_nat44_ei_ha_get_listener_reply_t *rmp;
321   int rv = 0;
322   ip4_address_t addr;
323   u16 port;
324   u32 path_mtu;
325
326   nat_ha_get_listener (&addr, &port, &path_mtu);
327
328   REPLY_MACRO2 (VL_API_NAT44_EI_HA_GET_LISTENER_REPLY, ({
329                   clib_memcpy (rmp->ip_address, &addr, sizeof (ip4_address_t));
330                   rmp->port = clib_host_to_net_u16 (port);
331                   rmp->path_mtu = clib_host_to_net_u32 (path_mtu);
332                 }))
333 }
334
335 static void
336 vl_api_nat44_ei_ha_set_failover_t_handler (
337   vl_api_nat44_ei_ha_set_failover_t *mp)
338 {
339   nat44_ei_main_t *nm = &nat44_ei_main;
340   vl_api_nat44_ei_ha_set_failover_reply_t *rmp;
341   ip4_address_t addr;
342   int rv;
343
344   memcpy (&addr, &mp->ip_address, sizeof (addr));
345   rv = nat_ha_set_failover (
346     vlib_get_main (), &addr, clib_net_to_host_u16 (mp->port),
347     clib_net_to_host_u32 (mp->session_refresh_interval));
348
349   REPLY_MACRO (VL_API_NAT44_EI_HA_SET_FAILOVER_REPLY);
350 }
351
352 static void
353 vl_api_nat44_ei_ha_get_failover_t_handler (
354   vl_api_nat44_ei_ha_get_failover_t *mp)
355 {
356   nat44_ei_main_t *nm = &nat44_ei_main;
357   vl_api_nat44_ei_ha_get_failover_reply_t *rmp;
358   int rv = 0;
359   ip4_address_t addr;
360   u16 port;
361   u32 session_refresh_interval;
362
363   nat_ha_get_failover (&addr, &port, &session_refresh_interval);
364
365   REPLY_MACRO2 (VL_API_NAT44_EI_HA_GET_FAILOVER_REPLY, ({
366                   clib_memcpy (rmp->ip_address, &addr, sizeof (ip4_address_t));
367                   rmp->port = clib_host_to_net_u16 (port);
368                   rmp->session_refresh_interval =
369                     clib_host_to_net_u32 (session_refresh_interval);
370                 }))
371 }
372
373 static void
374 vl_api_nat44_ei_ha_flush_t_handler (vl_api_nat44_ei_ha_flush_t *mp)
375 {
376   nat44_ei_main_t *nm = &nat44_ei_main;
377   vl_api_nat44_ei_ha_flush_reply_t *rmp;
378   int rv = 0;
379
380   nat_ha_flush (0);
381
382   REPLY_MACRO (VL_API_NAT44_EI_HA_FLUSH_REPLY);
383 }
384
385 static void
386 nat_ha_resync_completed_event_cb (u32 client_index, u32 pid, u32 missed_count)
387 {
388   nat44_ei_main_t *nm = &nat44_ei_main;
389   vl_api_registration_t *reg;
390   vl_api_nat44_ei_ha_resync_completed_event_t *mp;
391
392   reg = vl_api_client_index_to_registration (client_index);
393   if (!reg)
394     return;
395
396   mp = vl_msg_api_alloc (sizeof (*mp));
397   clib_memset (mp, 0, sizeof (*mp));
398   mp->client_index = client_index;
399   mp->pid = pid;
400   mp->missed_count = clib_host_to_net_u32 (missed_count);
401   mp->_vl_msg_id =
402     ntohs (VL_API_NAT44_EI_HA_RESYNC_COMPLETED_EVENT + nm->msg_id_base);
403
404   vl_api_send_msg (reg, (u8 *) mp);
405 }
406
407 static void
408 vl_api_nat44_ei_ha_resync_t_handler (vl_api_nat44_ei_ha_resync_t *mp)
409 {
410   nat44_ei_main_t *nm = &nat44_ei_main;
411   vl_api_nat44_ei_ha_resync_reply_t *rmp;
412   int rv;
413
414   rv = nat_ha_resync (
415     mp->client_index, mp->pid,
416     mp->want_resync_event ? nat_ha_resync_completed_event_cb : NULL);
417
418   REPLY_MACRO (VL_API_NAT44_EI_HA_RESYNC_REPLY);
419 }
420
421 static void
422 vl_api_nat44_ei_del_user_t_handler (vl_api_nat44_ei_del_user_t *mp)
423 {
424   nat44_ei_main_t *nm = &nat44_ei_main;
425   vl_api_nat44_ei_del_user_reply_t *rmp;
426   ip4_address_t addr;
427   int rv;
428   memcpy (&addr.as_u8, mp->ip_address, 4);
429   rv = nat44_ei_user_del (&addr, ntohl (mp->fib_index));
430   REPLY_MACRO (VL_API_NAT44_EI_DEL_USER_REPLY);
431 }
432
433 static void
434 vl_api_nat44_ei_add_del_address_range_t_handler (
435   vl_api_nat44_ei_add_del_address_range_t *mp)
436 {
437   nat44_ei_main_t *nm = &nat44_ei_main;
438   vl_api_nat44_ei_add_del_address_range_reply_t *rmp;
439   ip4_address_t this_addr;
440   u8 is_add;
441   u32 start_host_order, end_host_order;
442   u32 vrf_id;
443   int i, count;
444   int rv = 0;
445   u32 *tmp;
446
447   if (nm->static_mapping_only)
448     {
449       rv = VNET_API_ERROR_FEATURE_DISABLED;
450       goto send_reply;
451     }
452
453   is_add = mp->is_add;
454
455   tmp = (u32 *) mp->first_ip_address;
456   start_host_order = clib_host_to_net_u32 (tmp[0]);
457   tmp = (u32 *) mp->last_ip_address;
458   end_host_order = clib_host_to_net_u32 (tmp[0]);
459
460   count = (end_host_order - start_host_order) + 1;
461
462   vrf_id = clib_host_to_net_u32 (mp->vrf_id);
463
464   if (count > 1024)
465     nat44_ei_log_info ("%U - %U, %d addresses...", format_ip4_address,
466                        mp->first_ip_address, format_ip4_address,
467                        mp->last_ip_address, count);
468
469   memcpy (&this_addr.as_u8, mp->first_ip_address, 4);
470
471   for (i = 0; i < count; i++)
472     {
473       if (is_add)
474         rv = nat44_ei_add_address (&this_addr, vrf_id);
475       else
476         rv = nat44_ei_del_address (this_addr, 0);
477
478       if (rv)
479         goto send_reply;
480
481       if (nm->out2in_dpo)
482         nat44_ei_add_del_address_dpo (this_addr, is_add);
483
484       increment_v4_address (&this_addr);
485     }
486
487 send_reply:
488   REPLY_MACRO (VL_API_NAT44_EI_ADD_DEL_ADDRESS_RANGE_REPLY);
489 }
490
491 static void
492 send_nat44_ei_address_details (nat44_ei_address_t *a,
493                                vl_api_registration_t *reg, u32 context)
494 {
495   vl_api_nat44_ei_address_details_t *rmp;
496   nat44_ei_main_t *nm = &nat44_ei_main;
497
498   rmp = vl_msg_api_alloc (sizeof (*rmp));
499   clib_memset (rmp, 0, sizeof (*rmp));
500   rmp->_vl_msg_id = ntohs (VL_API_NAT44_EI_ADDRESS_DETAILS + nm->msg_id_base);
501   clib_memcpy (rmp->ip_address, &(a->addr), 4);
502   if (a->fib_index != ~0)
503     {
504       fib_table_t *fib = fib_table_get (a->fib_index, FIB_PROTOCOL_IP4);
505       rmp->vrf_id = ntohl (fib->ft_table_id);
506     }
507   else
508     rmp->vrf_id = ~0;
509   rmp->context = context;
510
511   vl_api_send_msg (reg, (u8 *) rmp);
512 }
513
514 static void
515 vl_api_nat44_ei_address_dump_t_handler (vl_api_nat44_ei_address_dump_t *mp)
516 {
517   vl_api_registration_t *reg;
518   nat44_ei_main_t *nm = &nat44_ei_main;
519   nat44_ei_address_t *a;
520
521   reg = vl_api_client_index_to_registration (mp->client_index);
522   if (!reg)
523     return;
524
525   vec_foreach (a, nm->addresses)
526     {
527       send_nat44_ei_address_details (a, reg, mp->context);
528     }
529 }
530
531 static void
532 vl_api_nat44_ei_interface_add_del_feature_t_handler (
533   vl_api_nat44_ei_interface_add_del_feature_t *mp)
534 {
535   nat44_ei_main_t *nm = &nat44_ei_main;
536   vl_api_nat44_ei_interface_add_del_feature_reply_t *rmp;
537   u32 sw_if_index = ntohl (mp->sw_if_index);
538   int rv = 0;
539
540   VALIDATE_SW_IF_INDEX (mp);
541
542   if (mp->is_add)
543     {
544       rv =
545         nat44_ei_add_interface (sw_if_index, mp->flags & NAT44_EI_IF_INSIDE);
546     }
547   else
548     {
549       rv =
550         nat44_ei_del_interface (sw_if_index, mp->flags & NAT44_EI_IF_INSIDE);
551     }
552
553   BAD_SW_IF_INDEX_LABEL;
554   REPLY_MACRO (VL_API_NAT44_EI_INTERFACE_ADD_DEL_FEATURE_REPLY);
555 }
556
557 static void
558 send_nat44_ei_interface_details (nat44_ei_interface_t *i,
559                                  vl_api_registration_t *reg, u32 context)
560 {
561   vl_api_nat44_ei_interface_details_t *rmp;
562   nat44_ei_main_t *nm = &nat44_ei_main;
563
564   rmp = vl_msg_api_alloc (sizeof (*rmp));
565   clib_memset (rmp, 0, sizeof (*rmp));
566   rmp->_vl_msg_id =
567     ntohs (VL_API_NAT44_EI_INTERFACE_DETAILS + nm->msg_id_base);
568   rmp->sw_if_index = ntohl (i->sw_if_index);
569
570   if (nat44_ei_interface_is_inside (i))
571     rmp->flags |= NAT44_EI_IF_INSIDE;
572   if (nat44_ei_interface_is_outside (i))
573     rmp->flags |= NAT44_EI_IF_OUTSIDE;
574
575   rmp->context = context;
576
577   vl_api_send_msg (reg, (u8 *) rmp);
578 }
579
580 static void
581 vl_api_nat44_ei_interface_dump_t_handler (vl_api_nat44_ei_interface_dump_t *mp)
582 {
583   vl_api_registration_t *reg;
584   nat44_ei_main_t *nm = &nat44_ei_main;
585   nat44_ei_interface_t *i;
586
587   reg = vl_api_client_index_to_registration (mp->client_index);
588   if (!reg)
589     return;
590
591   pool_foreach (i, nm->interfaces)
592     {
593       send_nat44_ei_interface_details (i, reg, mp->context);
594     }
595 }
596
597 static_always_inline int
598 add_del_dummy_output_interface (u32 sw_if_index, u8 is_inside, u8 is_add)
599 {
600   nat44_ei_main_t *nm = &nat44_ei_main;
601   nat44_ei_interface_t *i;
602   int rv = 1;
603
604   pool_foreach (i, nm->output_feature_dummy_interfaces)
605     {
606       if (i->sw_if_index == sw_if_index)
607         {
608           if (!is_add)
609             {
610               pool_put (nm->output_feature_dummy_interfaces, i);
611               rv = 0;
612             }
613           goto done;
614         }
615     }
616
617   if (is_add)
618     {
619       pool_get (nm->output_feature_dummy_interfaces, i);
620       i->sw_if_index = sw_if_index;
621
622       if (is_inside)
623         {
624           i->flags |= NAT44_EI_INTERFACE_FLAG_IS_INSIDE;
625         }
626       else
627         {
628           i->flags |= NAT44_EI_INTERFACE_FLAG_IS_OUTSIDE;
629         }
630
631       rv = 0;
632     }
633
634 done:
635   return rv;
636 }
637
638 static void
639 vl_api_nat44_ei_interface_add_del_output_feature_t_handler (
640   vl_api_nat44_ei_interface_add_del_output_feature_t *mp)
641 {
642   vl_api_nat44_ei_interface_add_del_output_feature_reply_t *rmp;
643   nat44_ei_main_t *nm = &nat44_ei_main;
644   u32 sw_if_index;
645   int rv = 0;
646
647   VALIDATE_SW_IF_INDEX (mp);
648
649   sw_if_index = ntohl (mp->sw_if_index);
650
651   // register all interfaces in the dummy structure
652   rv = add_del_dummy_output_interface (
653     sw_if_index, mp->flags & NAT44_EI_IF_INSIDE, mp->is_add);
654
655   if (!(mp->flags & NAT44_EI_IF_INSIDE))
656     {
657       if (mp->is_add)
658         {
659           rv = nat44_ei_add_output_interface (sw_if_index);
660         }
661       else
662         {
663           rv = nat44_ei_del_output_interface (sw_if_index);
664         }
665     }
666
667   BAD_SW_IF_INDEX_LABEL;
668   REPLY_MACRO (VL_API_NAT44_EI_INTERFACE_ADD_DEL_OUTPUT_FEATURE_REPLY);
669 }
670
671 static void
672 send_nat44_ei_interface_output_feature_details (nat44_ei_interface_t *i,
673                                                 vl_api_registration_t *reg,
674                                                 u32 context)
675 {
676   vl_api_nat44_ei_interface_output_feature_details_t *rmp;
677   nat44_ei_main_t *nm = &nat44_ei_main;
678
679   rmp = vl_msg_api_alloc (sizeof (*rmp));
680   clib_memset (rmp, 0, sizeof (*rmp));
681   rmp->_vl_msg_id =
682     ntohs (VL_API_NAT44_EI_INTERFACE_OUTPUT_FEATURE_DETAILS + nm->msg_id_base);
683   rmp->sw_if_index = ntohl (i->sw_if_index);
684   rmp->context = context;
685
686   if (nat44_ei_interface_is_inside (i))
687     {
688       rmp->flags |= NAT44_EI_IF_INSIDE;
689     }
690
691   vl_api_send_msg (reg, (u8 *) rmp);
692 }
693
694 static void
695 vl_api_nat44_ei_interface_output_feature_dump_t_handler (
696   vl_api_nat44_ei_interface_output_feature_dump_t *mp)
697 {
698   vl_api_registration_t *reg;
699   nat44_ei_main_t *nm = &nat44_ei_main;
700   nat44_ei_interface_t *i;
701
702   reg = vl_api_client_index_to_registration (mp->client_index);
703   if (!reg)
704     return;
705
706   pool_foreach (i, nm->output_feature_dummy_interfaces)
707     {
708       send_nat44_ei_interface_output_feature_details (i, reg, mp->context);
709     }
710 }
711
712 static void
713 vl_api_nat44_ei_add_del_output_interface_t_handler (
714   vl_api_nat44_ei_add_del_output_interface_t *mp)
715 {
716   vl_api_nat44_ei_add_del_output_interface_reply_t *rmp;
717   nat44_ei_main_t *nm = &nat44_ei_main;
718   int rv = 0;
719
720   VALIDATE_SW_IF_INDEX_END (mp);
721
722   if (mp->is_add)
723     {
724       rv = nat44_ei_add_output_interface (mp->sw_if_index);
725     }
726   else
727     {
728       rv = nat44_ei_del_output_interface (mp->sw_if_index);
729     }
730
731 bad_sw_if_index:
732   REPLY_MACRO_END (VL_API_NAT44_EI_ADD_DEL_OUTPUT_INTERFACE_REPLY);
733 }
734
735 #define vl_endianfun
736 #include <nat/nat44-ei/nat44_ei.api.h>
737 #undef vl_endianfun
738 static void
739 send_nat44_ei_output_interface_details (u32 index, vl_api_registration_t *rp,
740                                         u32 context)
741 {
742   nat44_ei_main_t *nm = &nat44_ei_main;
743   vl_api_nat44_ei_output_interface_details_t *rmp;
744   nat44_ei_interface_t *i =
745     pool_elt_at_index (nm->output_feature_interfaces, index);
746
747   /* Make sure every field is initiated (or don't skip the clib_memset()) */
748   REPLY_MACRO_DETAILS4 (
749     VL_API_NAT44_EI_OUTPUT_INTERFACE_DETAILS, rp, context, ({
750       rmp->sw_if_index = i->sw_if_index;
751
752       /* Endian hack until apigen registers _details
753        * endian functions */
754       vl_api_nat44_ei_output_interface_details_t_endian (rmp,
755                                                          1 /* to network */);
756       rmp->_vl_msg_id = htons (rmp->_vl_msg_id);
757       rmp->context = htonl (rmp->context);
758     }));
759 }
760
761 static void
762 vl_api_nat44_ei_output_interface_get_t_handler (
763   vl_api_nat44_ei_output_interface_get_t *mp)
764 {
765   vl_api_nat44_ei_output_interface_get_reply_t *rmp;
766   nat44_ei_main_t *nm = &nat44_ei_main;
767   i32 rv = 0;
768
769   if (pool_elts (nm->output_feature_interfaces) == 0)
770     {
771       REPLY_MACRO (VL_API_NAT44_EI_OUTPUT_INTERFACE_GET_REPLY);
772       return;
773     }
774
775   REPLY_AND_DETAILS_MACRO (
776     VL_API_NAT44_EI_OUTPUT_INTERFACE_GET_REPLY, nm->output_feature_interfaces,
777     ({ send_nat44_ei_output_interface_details (cursor, rp, mp->context); }));
778 }
779
780 static void
781 vl_api_nat44_ei_add_del_static_mapping_t_handler (
782   vl_api_nat44_ei_add_del_static_mapping_t *mp)
783 {
784   vl_api_nat44_ei_add_del_static_mapping_reply_t *rmp;
785
786   nat44_ei_main_t *nm = &nat44_ei_main;
787   int rv = 0;
788
789   ip4_address_t l_addr, e_addr, pool_addr = { 0 };
790   u32 sw_if_index, flags = 0, vrf_id;
791   u16 l_port = 0, e_port = 0;
792   nat_protocol_t proto = 0;
793   u8 *tag = 0;
794
795   memcpy (&l_addr.as_u8, mp->local_ip_address, 4);
796
797   if (mp->flags & NAT44_EI_ADDR_ONLY_MAPPING)
798     {
799       flags |= NAT44_EI_SM_FLAG_ADDR_ONLY;
800     }
801   else
802     {
803       l_port = mp->local_port;
804       e_port = mp->external_port;
805       proto = ip_proto_to_nat_proto (mp->protocol);
806     }
807
808   sw_if_index = clib_net_to_host_u32 (mp->external_sw_if_index);
809   if (sw_if_index != ~0)
810     {
811       flags |= NAT44_EI_SM_FLAG_SWITCH_ADDRESS;
812     }
813   else
814     {
815       memcpy (&e_addr.as_u8, mp->external_ip_address, 4);
816     }
817
818   vrf_id = clib_net_to_host_u32 (mp->vrf_id);
819
820   if (mp->is_add)
821     {
822       mp->tag[sizeof (mp->tag) - 1] = 0;
823       tag = format (0, "%s", mp->tag);
824       vec_terminate_c_string (tag);
825
826       rv = nat44_ei_add_static_mapping (l_addr, e_addr, l_port, e_port, proto,
827                                         vrf_id, sw_if_index, flags, pool_addr,
828                                         tag);
829       vec_free (tag);
830     }
831   else
832     {
833       rv = nat44_ei_del_static_mapping (l_addr, e_addr, l_port, e_port, proto,
834                                         vrf_id, sw_if_index, flags);
835     }
836   REPLY_MACRO (VL_API_NAT44_EI_ADD_DEL_STATIC_MAPPING_REPLY);
837 }
838
839 static void
840 send_nat44_ei_static_mapping_details (nat44_ei_static_mapping_t *m,
841                                       vl_api_registration_t *reg, u32 context)
842 {
843   vl_api_nat44_ei_static_mapping_details_t *rmp;
844   nat44_ei_main_t *nm = &nat44_ei_main;
845   u32 len = sizeof (*rmp);
846
847   rmp = vl_msg_api_alloc (len);
848   clib_memset (rmp, 0, len);
849   rmp->_vl_msg_id =
850     ntohs (VL_API_NAT44_EI_STATIC_MAPPING_DETAILS + nm->msg_id_base);
851
852   clib_memcpy (rmp->local_ip_address, &(m->local_addr), 4);
853   clib_memcpy (rmp->external_ip_address, &(m->external_addr), 4);
854   rmp->external_sw_if_index = ~0;
855   rmp->vrf_id = htonl (m->vrf_id);
856   rmp->context = context;
857
858   if (is_sm_addr_only (m->flags))
859     {
860       rmp->flags |= NAT44_EI_ADDR_ONLY_MAPPING;
861     }
862   else
863     {
864       rmp->protocol = nat_proto_to_ip_proto (m->proto);
865       rmp->external_port = m->external_port;
866       rmp->local_port = m->local_port;
867     }
868
869   if (m->tag)
870     strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
871
872   vl_api_send_msg (reg, (u8 *) rmp);
873 }
874
875 static void
876 send_nat44_ei_static_map_resolve_details (nat44_ei_static_map_resolve_t *m,
877                                           vl_api_registration_t *reg,
878                                           u32 context)
879 {
880   vl_api_nat44_ei_static_mapping_details_t *rmp;
881   nat44_ei_main_t *nm = &nat44_ei_main;
882
883   rmp = vl_msg_api_alloc (sizeof (*rmp));
884   clib_memset (rmp, 0, sizeof (*rmp));
885   rmp->_vl_msg_id =
886     ntohs (VL_API_NAT44_EI_STATIC_MAPPING_DETAILS + nm->msg_id_base);
887   clib_memcpy (rmp->local_ip_address, &(m->l_addr), 4);
888   rmp->external_sw_if_index = htonl (m->sw_if_index);
889   rmp->vrf_id = htonl (m->vrf_id);
890   rmp->context = context;
891
892   if (is_sm_addr_only (m->flags))
893     {
894       rmp->flags |= NAT44_EI_ADDR_ONLY_MAPPING;
895     }
896   else
897     {
898       rmp->protocol = nat_proto_to_ip_proto (m->proto);
899       rmp->external_port = m->e_port;
900       rmp->local_port = m->l_port;
901     }
902   if (m->tag)
903     strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
904
905   vl_api_send_msg (reg, (u8 *) rmp);
906 }
907
908 static void
909 vl_api_nat44_ei_static_mapping_dump_t_handler (
910   vl_api_nat44_ei_static_mapping_dump_t *mp)
911 {
912   vl_api_registration_t *reg;
913   nat44_ei_main_t *nm = &nat44_ei_main;
914   nat44_ei_static_mapping_t *m;
915   nat44_ei_static_map_resolve_t *rp;
916   int j;
917
918   reg = vl_api_client_index_to_registration (mp->client_index);
919   if (!reg)
920     return;
921
922   pool_foreach (m, nm->static_mappings)
923     {
924       if (!is_sm_identity_nat (m->flags))
925         send_nat44_ei_static_mapping_details (m, reg, mp->context);
926     }
927
928   for (j = 0; j < vec_len (nm->to_resolve); j++)
929     {
930       rp = nm->to_resolve + j;
931       if (!is_sm_identity_nat (rp->flags))
932         send_nat44_ei_static_map_resolve_details (rp, reg, mp->context);
933     }
934 }
935
936 static void
937 vl_api_nat44_ei_add_del_identity_mapping_t_handler (
938   vl_api_nat44_ei_add_del_identity_mapping_t *mp)
939 {
940   vl_api_nat44_ei_add_del_identity_mapping_reply_t *rmp;
941
942   nat44_ei_main_t *nm = &nat44_ei_main;
943   int rv = 0;
944
945   ip4_address_t addr, pool_addr = { 0 };
946   u32 sw_if_index, flags, vrf_id;
947   nat_protocol_t proto = 0;
948   u16 port = 0;
949   u8 *tag = 0;
950
951   flags = NAT44_EI_SM_FLAG_IDENTITY_NAT;
952
953   if (mp->flags & NAT44_EI_ADDR_ONLY_MAPPING)
954     {
955       flags |= NAT44_EI_SM_FLAG_ADDR_ONLY;
956     }
957   else
958     {
959       port = mp->port;
960       proto = ip_proto_to_nat_proto (mp->protocol);
961     }
962
963   sw_if_index = clib_net_to_host_u32 (mp->sw_if_index);
964   if (sw_if_index != ~0)
965     {
966       flags |= NAT44_EI_SM_FLAG_SWITCH_ADDRESS;
967     }
968   else
969     {
970       memcpy (&addr.as_u8, mp->ip_address, 4);
971     }
972
973   vrf_id = clib_net_to_host_u32 (mp->vrf_id);
974
975   if (mp->is_add)
976     {
977       mp->tag[sizeof (mp->tag) - 1] = 0;
978       tag = format (0, "%s", mp->tag);
979       vec_terminate_c_string (tag);
980
981       rv = nat44_ei_add_static_mapping (addr, addr, port, port, proto, vrf_id,
982                                         sw_if_index, flags, pool_addr, tag);
983       vec_free (tag);
984     }
985   else
986     {
987       rv = nat44_ei_del_static_mapping (addr, addr, port, port, proto, vrf_id,
988                                         sw_if_index, flags);
989     }
990
991   REPLY_MACRO (VL_API_NAT44_EI_ADD_DEL_IDENTITY_MAPPING_REPLY);
992 }
993
994 static void
995 send_nat44_ei_identity_mapping_details (nat44_ei_static_mapping_t *m,
996                                         int index, vl_api_registration_t *reg,
997                                         u32 context)
998 {
999   vl_api_nat44_ei_identity_mapping_details_t *rmp;
1000   nat44_ei_main_t *nm = &nat44_ei_main;
1001   nat44_ei_lb_addr_port_t *local = pool_elt_at_index (m->locals, index);
1002
1003   rmp = vl_msg_api_alloc (sizeof (*rmp));
1004   clib_memset (rmp, 0, sizeof (*rmp));
1005   rmp->_vl_msg_id =
1006     ntohs (VL_API_NAT44_EI_IDENTITY_MAPPING_DETAILS + nm->msg_id_base);
1007
1008   if (is_sm_addr_only (m->flags))
1009     rmp->flags |= NAT44_EI_ADDR_ONLY_MAPPING;
1010
1011   clib_memcpy (rmp->ip_address, &(m->local_addr), 4);
1012   rmp->port = m->local_port;
1013   rmp->sw_if_index = ~0;
1014   rmp->vrf_id = htonl (local->vrf_id);
1015   rmp->protocol = nat_proto_to_ip_proto (m->proto);
1016   rmp->context = context;
1017   if (m->tag)
1018     strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
1019
1020   vl_api_send_msg (reg, (u8 *) rmp);
1021 }
1022
1023 static void
1024 send_nat44_ei_identity_map_resolve_details (nat44_ei_static_map_resolve_t *m,
1025                                             vl_api_registration_t *reg,
1026                                             u32 context)
1027 {
1028   vl_api_nat44_ei_identity_mapping_details_t *rmp;
1029   nat44_ei_main_t *nm = &nat44_ei_main;
1030   rmp = vl_msg_api_alloc (sizeof (*rmp));
1031   clib_memset (rmp, 0, sizeof (*rmp));
1032   rmp->_vl_msg_id =
1033     ntohs (VL_API_NAT44_EI_IDENTITY_MAPPING_DETAILS + nm->msg_id_base);
1034
1035   if (is_sm_addr_only (m->flags))
1036     rmp->flags = (vl_api_nat44_ei_config_flags_t) NAT44_EI_ADDR_ONLY_MAPPING;
1037
1038   rmp->port = m->l_port;
1039   rmp->sw_if_index = htonl (m->sw_if_index);
1040   rmp->vrf_id = htonl (m->vrf_id);
1041   rmp->protocol = nat_proto_to_ip_proto (m->proto);
1042   rmp->context = context;
1043   if (m->tag)
1044     strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
1045
1046   vl_api_send_msg (reg, (u8 *) rmp);
1047 }
1048
1049 static void
1050 vl_api_nat44_ei_identity_mapping_dump_t_handler (
1051   vl_api_nat44_ei_identity_mapping_dump_t *mp)
1052 {
1053   vl_api_registration_t *reg;
1054   nat44_ei_main_t *nm = &nat44_ei_main;
1055   nat44_ei_static_mapping_t *m;
1056   nat44_ei_static_map_resolve_t *rp;
1057   int j;
1058
1059   reg = vl_api_client_index_to_registration (mp->client_index);
1060   if (!reg)
1061     return;
1062
1063   pool_foreach (m, nm->static_mappings)
1064     {
1065       if (is_sm_identity_nat (m->flags))
1066         {
1067           pool_foreach_index (j, m->locals)
1068             {
1069               send_nat44_ei_identity_mapping_details (m, j, reg, mp->context);
1070             }
1071         }
1072     }
1073
1074   for (j = 0; j < vec_len (nm->to_resolve); j++)
1075     {
1076       rp = nm->to_resolve + j;
1077       if (is_sm_identity_nat (rp->flags))
1078         send_nat44_ei_identity_map_resolve_details (rp, reg, mp->context);
1079     }
1080 }
1081
1082 static void
1083 vl_api_nat44_ei_add_del_interface_addr_t_handler (
1084   vl_api_nat44_ei_add_del_interface_addr_t *mp)
1085 {
1086   nat44_ei_main_t *nm = &nat44_ei_main;
1087   vl_api_nat44_ei_add_del_interface_addr_reply_t *rmp;
1088   u32 sw_if_index = ntohl (mp->sw_if_index);
1089   int rv = 0;
1090
1091   VALIDATE_SW_IF_INDEX (mp);
1092
1093   if (mp->is_add)
1094     {
1095       rv = nat44_ei_add_interface_address (sw_if_index);
1096     }
1097   else
1098     {
1099       rv = nat44_ei_del_interface_address (sw_if_index);
1100     }
1101
1102   BAD_SW_IF_INDEX_LABEL;
1103   REPLY_MACRO (VL_API_NAT44_EI_ADD_DEL_INTERFACE_ADDR_REPLY);
1104 }
1105
1106 static void
1107 send_nat44_ei_interface_addr_details (u32 sw_if_index,
1108                                       vl_api_registration_t *reg, u32 context)
1109 {
1110   vl_api_nat44_ei_interface_addr_details_t *rmp;
1111   nat44_ei_main_t *nm = &nat44_ei_main;
1112
1113   rmp = vl_msg_api_alloc (sizeof (*rmp));
1114   clib_memset (rmp, 0, sizeof (*rmp));
1115   rmp->_vl_msg_id =
1116     ntohs (VL_API_NAT44_EI_INTERFACE_ADDR_DETAILS + nm->msg_id_base);
1117   rmp->sw_if_index = ntohl (sw_if_index);
1118   rmp->context = context;
1119
1120   vl_api_send_msg (reg, (u8 *) rmp);
1121 }
1122
1123 static void
1124 vl_api_nat44_ei_interface_addr_dump_t_handler (
1125   vl_api_nat44_ei_interface_addr_dump_t *mp)
1126 {
1127   vl_api_registration_t *reg;
1128   nat44_ei_main_t *nm = &nat44_ei_main;
1129   u32 *i;
1130
1131   reg = vl_api_client_index_to_registration (mp->client_index);
1132   if (!reg)
1133     return;
1134
1135   vec_foreach (i, nm->auto_add_sw_if_indices)
1136     send_nat44_ei_interface_addr_details (*i, reg, mp->context);
1137 }
1138
1139 static void
1140 send_nat44_ei_user_details (nat44_ei_user_t *u, vl_api_registration_t *reg,
1141                             u32 context)
1142 {
1143   vl_api_nat44_ei_user_details_t *rmp;
1144   nat44_ei_main_t *nm = &nat44_ei_main;
1145   ip4_main_t *im = &ip4_main;
1146
1147   rmp = vl_msg_api_alloc (sizeof (*rmp));
1148   clib_memset (rmp, 0, sizeof (*rmp));
1149   rmp->_vl_msg_id = ntohs (VL_API_NAT44_EI_USER_DETAILS + nm->msg_id_base);
1150
1151   if (!pool_is_free_index (im->fibs, u->fib_index))
1152     {
1153       fib_table_t *fib = fib_table_get (u->fib_index, FIB_PROTOCOL_IP4);
1154       rmp->vrf_id = ntohl (fib->ft_table_id);
1155     }
1156
1157   clib_memcpy (rmp->ip_address, &(u->addr), 4);
1158   rmp->nsessions = ntohl (u->nsessions);
1159   rmp->nstaticsessions = ntohl (u->nstaticsessions);
1160   rmp->context = context;
1161
1162   vl_api_send_msg (reg, (u8 *) rmp);
1163 }
1164
1165 static void
1166 vl_api_nat44_ei_user_dump_t_handler (vl_api_nat44_ei_user_dump_t *mp)
1167 {
1168   vl_api_registration_t *reg;
1169   nat44_ei_main_t *nm = &nat44_ei_main;
1170   nat44_ei_main_per_thread_data_t *tnm;
1171   nat44_ei_user_t *u;
1172
1173   reg = vl_api_client_index_to_registration (mp->client_index);
1174   if (!reg)
1175     return;
1176
1177   vec_foreach (tnm, nm->per_thread_data)
1178     {
1179       pool_foreach (u, tnm->users)
1180         {
1181           send_nat44_ei_user_details (u, reg, mp->context);
1182         }
1183     }
1184 }
1185
1186 static void
1187 send_nat44_ei_user_session_details (nat44_ei_session_t *s,
1188                                     vl_api_registration_t *reg, u32 context)
1189 {
1190   vl_api_nat44_ei_user_session_details_t *rmp;
1191   nat44_ei_main_t *nm = &nat44_ei_main;
1192
1193   rmp = vl_msg_api_alloc (sizeof (*rmp));
1194   clib_memset (rmp, 0, sizeof (*rmp));
1195   rmp->_vl_msg_id =
1196     ntohs (VL_API_NAT44_EI_USER_SESSION_DETAILS + nm->msg_id_base);
1197   clib_memcpy (rmp->outside_ip_address, (&s->out2in.addr), 4);
1198   clib_memcpy (rmp->inside_ip_address, (&s->in2out.addr), 4);
1199
1200   if (nat44_ei_is_session_static (s))
1201     rmp->flags |= NAT44_EI_STATIC_MAPPING;
1202
1203   rmp->last_heard = clib_host_to_net_u64 ((u64) s->last_heard);
1204   rmp->total_bytes = clib_host_to_net_u64 (s->total_bytes);
1205   rmp->total_pkts = ntohl (s->total_pkts);
1206   rmp->context = context;
1207   if (nat44_ei_is_unk_proto_session (s))
1208     {
1209       rmp->outside_port = 0;
1210       rmp->inside_port = 0;
1211       rmp->protocol = ntohs (s->in2out.port);
1212     }
1213   else
1214     {
1215       rmp->outside_port = s->out2in.port;
1216       rmp->inside_port = s->in2out.port;
1217       rmp->protocol = ntohs (nat_proto_to_ip_proto (s->nat_proto));
1218     }
1219   vl_api_send_msg (reg, (u8 *) rmp);
1220 }
1221
1222 static void
1223 send_nat44_ei_user_session_v2_details (nat44_ei_session_t *s,
1224                                        vl_api_registration_t *reg, u32 context)
1225 {
1226   vl_api_nat44_ei_user_session_v2_details_t *rmp;
1227   nat44_ei_main_t *nm = &nat44_ei_main;
1228
1229   rmp = vl_msg_api_alloc (sizeof (*rmp));
1230   clib_memset (rmp, 0, sizeof (*rmp));
1231   rmp->_vl_msg_id =
1232     ntohs (VL_API_NAT44_EI_USER_SESSION_V2_DETAILS + nm->msg_id_base);
1233   clib_memcpy (rmp->outside_ip_address, (&s->out2in.addr), 4);
1234   clib_memcpy (rmp->inside_ip_address, (&s->in2out.addr), 4);
1235
1236   if (nat44_ei_is_session_static (s))
1237     rmp->flags |= NAT44_EI_STATIC_MAPPING;
1238
1239   rmp->last_heard = clib_host_to_net_u64 ((u64) s->last_heard);
1240   rmp->time_since_last_heard = clib_host_to_net_u64 (
1241     (u64) (vlib_time_now (vlib_get_main ()) - s->last_heard));
1242   rmp->total_bytes = clib_host_to_net_u64 (s->total_bytes);
1243   rmp->total_pkts = ntohl (s->total_pkts);
1244   rmp->context = context;
1245   if (nat44_ei_is_unk_proto_session (s))
1246     {
1247       rmp->outside_port = 0;
1248       rmp->inside_port = 0;
1249       rmp->protocol = ntohs (s->in2out.port);
1250     }
1251   else
1252     {
1253       rmp->outside_port = s->out2in.port;
1254       rmp->inside_port = s->in2out.port;
1255       rmp->protocol = ntohs (nat_proto_to_ip_proto (s->nat_proto));
1256     }
1257   vl_api_send_msg (reg, (u8 *) rmp);
1258 }
1259
1260 static void
1261 vl_api_nat44_ei_user_session_dump_t_handler (
1262   vl_api_nat44_ei_user_session_dump_t *mp)
1263 {
1264   vl_api_registration_t *reg;
1265   nat44_ei_main_t *nm = &nat44_ei_main;
1266   nat44_ei_main_per_thread_data_t *tnm;
1267   nat44_ei_session_t *s;
1268   clib_bihash_kv_8_8_t key, value;
1269   nat44_ei_user_key_t ukey;
1270   nat44_ei_user_t *u;
1271   u32 session_index, head_index, elt_index;
1272   dlist_elt_t *head, *elt;
1273   ip4_header_t ip;
1274
1275   reg = vl_api_client_index_to_registration (mp->client_index);
1276   if (!reg)
1277     return;
1278
1279   clib_memcpy (&ukey.addr, mp->ip_address, 4);
1280   ip.src_address.as_u32 = ukey.addr.as_u32;
1281   ukey.fib_index = fib_table_find (FIB_PROTOCOL_IP4, ntohl (mp->vrf_id));
1282   key.key = ukey.as_u64;
1283   if (nm->num_workers > 1)
1284     tnm = vec_elt_at_index (
1285       nm->per_thread_data,
1286       nat44_ei_get_in2out_worker_index (&ip, ukey.fib_index, 0));
1287   else
1288     tnm = vec_elt_at_index (nm->per_thread_data, nm->num_workers);
1289
1290   if (clib_bihash_search_8_8 (&tnm->user_hash, &key, &value))
1291     return;
1292   u = pool_elt_at_index (tnm->users, value.value);
1293   if (!u->nsessions && !u->nstaticsessions)
1294     return;
1295
1296   head_index = u->sessions_per_user_list_head_index;
1297   head = pool_elt_at_index (tnm->list_pool, head_index);
1298   elt_index = head->next;
1299   elt = pool_elt_at_index (tnm->list_pool, elt_index);
1300   session_index = elt->value;
1301   while (session_index != ~0)
1302     {
1303       s = pool_elt_at_index (tnm->sessions, session_index);
1304
1305       send_nat44_ei_user_session_details (s, reg, mp->context);
1306
1307       elt_index = elt->next;
1308       elt = pool_elt_at_index (tnm->list_pool, elt_index);
1309       session_index = elt->value;
1310     }
1311 }
1312
1313 static void
1314 vl_api_nat44_ei_user_session_v2_dump_t_handler (
1315   vl_api_nat44_ei_user_session_dump_t *mp)
1316 {
1317   vl_api_registration_t *reg;
1318   nat44_ei_main_t *nm = &nat44_ei_main;
1319   nat44_ei_main_per_thread_data_t *tnm;
1320   nat44_ei_session_t *s;
1321   clib_bihash_kv_8_8_t key, value;
1322   nat44_ei_user_key_t ukey;
1323   nat44_ei_user_t *u;
1324   u32 session_index, head_index, elt_index;
1325   dlist_elt_t *head, *elt;
1326   ip4_header_t ip;
1327
1328   reg = vl_api_client_index_to_registration (mp->client_index);
1329   if (!reg)
1330     return;
1331
1332   clib_memcpy (&ukey.addr, mp->ip_address, 4);
1333   ip.src_address.as_u32 = ukey.addr.as_u32;
1334   ukey.fib_index = fib_table_find (FIB_PROTOCOL_IP4, ntohl (mp->vrf_id));
1335   key.key = ukey.as_u64;
1336   if (nm->num_workers > 1)
1337     tnm = vec_elt_at_index (
1338       nm->per_thread_data,
1339       nat44_ei_get_in2out_worker_index (&ip, ukey.fib_index, 0));
1340   else
1341     tnm = vec_elt_at_index (nm->per_thread_data, nm->num_workers);
1342
1343   if (clib_bihash_search_8_8 (&tnm->user_hash, &key, &value))
1344     return;
1345   u = pool_elt_at_index (tnm->users, value.value);
1346   if (!u->nsessions && !u->nstaticsessions)
1347     return;
1348
1349   head_index = u->sessions_per_user_list_head_index;
1350   head = pool_elt_at_index (tnm->list_pool, head_index);
1351   elt_index = head->next;
1352   elt = pool_elt_at_index (tnm->list_pool, elt_index);
1353   session_index = elt->value;
1354   while (session_index != ~0)
1355     {
1356       s = pool_elt_at_index (tnm->sessions, session_index);
1357
1358       send_nat44_ei_user_session_v2_details (s, reg, mp->context);
1359
1360       elt_index = elt->next;
1361       elt = pool_elt_at_index (tnm->list_pool, elt_index);
1362       session_index = elt->value;
1363     }
1364 }
1365
1366 static void
1367 vl_api_nat44_ei_del_session_t_handler (vl_api_nat44_ei_del_session_t *mp)
1368 {
1369   nat44_ei_main_t *nm = &nat44_ei_main;
1370   vl_api_nat44_ei_del_session_reply_t *rmp;
1371   ip4_address_t addr, eh_addr;
1372   u16 port;
1373   u32 vrf_id;
1374   int rv = 0;
1375   u8 is_in;
1376   nat_protocol_t proto;
1377
1378   memcpy (&addr.as_u8, mp->address, 4);
1379   port = mp->port;
1380   vrf_id = clib_net_to_host_u32 (mp->vrf_id);
1381   proto = ip_proto_to_nat_proto (mp->protocol);
1382   memcpy (&eh_addr.as_u8, mp->ext_host_address, 4);
1383
1384   // is session inside ?
1385   is_in = mp->flags & NAT44_EI_IF_INSIDE;
1386
1387   rv = nat44_ei_del_session (nm, &addr, port, proto, vrf_id, is_in);
1388
1389   REPLY_MACRO (VL_API_NAT44_EI_DEL_SESSION_REPLY);
1390 }
1391
1392 static void
1393 vl_api_nat44_ei_forwarding_enable_disable_t_handler (
1394   vl_api_nat44_ei_forwarding_enable_disable_t *mp)
1395 {
1396   nat44_ei_main_t *nm = &nat44_ei_main;
1397   vl_api_nat44_ei_forwarding_enable_disable_reply_t *rmp;
1398   int rv = 0;
1399   u32 *ses_to_be_removed = 0, *ses_index;
1400   nat44_ei_main_per_thread_data_t *tnm;
1401   nat44_ei_session_t *s;
1402
1403   nm->forwarding_enabled = mp->enable != 0;
1404
1405   if (mp->enable == 0)
1406     {
1407       vec_foreach (tnm, nm->per_thread_data)
1408         {
1409           vec_foreach (ses_index, ses_to_be_removed)
1410             {
1411               s = pool_elt_at_index (tnm->sessions, ses_index[0]);
1412               nat44_ei_free_session_data (nm, s, tnm - nm->per_thread_data, 0);
1413               nat44_ei_delete_session (nm, s, tnm - nm->per_thread_data);
1414             }
1415
1416           vec_free (ses_to_be_removed);
1417         }
1418     }
1419
1420   REPLY_MACRO (VL_API_NAT44_EI_FORWARDING_ENABLE_DISABLE_REPLY);
1421 }
1422
1423 static void
1424 vl_api_nat44_ei_set_fq_options_t_handler (vl_api_nat44_ei_set_fq_options_t *mp)
1425 {
1426   nat44_ei_main_t *nm = &nat44_ei_main;
1427   vl_api_nat44_ei_set_fq_options_reply_t *rmp;
1428   int rv = 0;
1429   u32 frame_queue_nelts = ntohl (mp->frame_queue_nelts);
1430   rv = nat44_ei_set_frame_queue_nelts (frame_queue_nelts);
1431   REPLY_MACRO (VL_API_NAT44_EI_SET_FQ_OPTIONS_REPLY);
1432 }
1433
1434 static void
1435 vl_api_nat44_ei_show_fq_options_t_handler (
1436   vl_api_nat44_ei_show_fq_options_t *mp)
1437 {
1438   nat44_ei_main_t *nm = &nat44_ei_main;
1439   vl_api_nat44_ei_show_fq_options_reply_t *rmp;
1440   int rv = 0;
1441   /* clang-format off */
1442   REPLY_MACRO2_ZERO (VL_API_NAT44_EI_SHOW_FQ_OPTIONS_REPLY,
1443   ({
1444     rmp->frame_queue_nelts = htonl (nm->frame_queue_nelts);
1445   }));
1446   /* clang-format on */
1447 }
1448
1449 /* API definitions */
1450 #include <vnet/format_fns.h>
1451 #include <nat/nat44-ei/nat44_ei.api.c>
1452
1453 /* Set up the API message handling tables */
1454 clib_error_t *
1455 nat44_ei_api_hookup (vlib_main_t *vm)
1456 {
1457   nat44_ei_main_t *nm = &nat44_ei_main;
1458   nm->msg_id_base = setup_message_id_table ();
1459   return 0;
1460 }
1461
1462 /*
1463  * fd.io coding-style-patch-verification: ON
1464  *
1465  * Local Variables:
1466  * eval: (c-set-style "gnu")
1467  * End:
1468  */