2 * Copyright (c) 2018 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/vnet.h>
17 #include <vlibmemory/api.h>
18 #include <vnet/vnet_msg_enum.h>
19 #include <vnet/dhcp/dhcp6_packet.h>
20 #include <vnet/dhcp/dhcp6_pd_client_dp.h>
21 #include <vnet/ip/ip.h>
22 #include <vnet/ip/ip6.h>
27 #define vl_typedefs /* define message structures */
28 #include <vnet/vnet_all_api_h.h>
31 #define vl_endianfun /* define message structures */
32 #include <vnet/vnet_all_api_h.h>
35 #include <vlibapi/api_helper_macros.h>
37 #define foreach_dhcp6_pd_client_cp_msg \
38 _(DHCP6_PD_CLIENT_ENABLE_DISABLE, dhcp6_pd_client_enable_disable) \
39 _(IP6_ADD_DEL_ADDRESS_USING_PREFIX, ip6_add_del_address_using_prefix)
41 #define vl_api_dhcp6_pd_client_enable_disable_t_print vl_noop_handler
42 #define vl_api_ip6_add_del_address_using_prefix_t_print vl_noop_handler
46 u32 prefix_group_index;
47 uword opaque_data; // used by prefix publisher
58 u32 prefix_group_index;
70 client_state_t *client_state_by_sw_if_index;
71 clib_bitmap_t *prefix_ownership_bitmap;
73 f64 max_valid_due_time;
76 vlib_main_t *vlib_main;
77 vnet_main_t *vnet_main;
80 } dhcp6_pd_client_cp_main_t;
82 static dhcp6_pd_client_cp_main_t dhcp6_pd_client_cp_main;
86 prefix_info_t *prefix_pool;
87 const u8 **prefix_group_name_by_index;
90 static ip6_prefix_main_t ip6_prefix_main;
96 u32 prefix_group_index;
97 ip6_address_t address;
101 u8 configured_in_data_plane;
102 } ip6_address_info_t;
106 ip6_address_info_t *addresses;
107 u32 *active_prefix_index_by_prefix_group_index;
108 } ip6_address_with_prefix_main_t;
110 static ip6_address_with_prefix_main_t ip6_address_with_prefix_main;
114 DHCPV6_PD_EVENT_INTERRUPT,
115 DHCPV6_PD_EVENT_DISABLE,
118 static_always_inline u32
119 active_prefix_index_by_prefix_group_index_get (u32 prefix_group_index)
121 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
123 if (prefix_group_index >=
124 vec_len (apm->active_prefix_index_by_prefix_group_index))
127 return apm->active_prefix_index_by_prefix_group_index[prefix_group_index];
130 static_always_inline void
131 active_prefix_index_by_prefix_group_index_set (u32 prefix_group_index,
134 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
135 static const u32 empty = ~0;
137 ASSERT (prefix_group_index != ~0);
139 if (prefix_index == ~0
140 && prefix_group_index >=
141 vec_len (apm->active_prefix_index_by_prefix_group_index))
144 vec_validate_init_empty (apm->active_prefix_index_by_prefix_group_index,
145 prefix_group_index, empty);
146 apm->active_prefix_index_by_prefix_group_index[prefix_group_index] =
150 static_always_inline u8
151 is_dhcpv6_pd_prefix (prefix_info_t * prefix_info)
153 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
154 ip6_prefix_main_t *pm = &ip6_prefix_main;
157 prefix_index = prefix_info - pm->prefix_pool;
158 return clib_bitmap_get (rm->prefix_ownership_bitmap, prefix_index);
161 static_always_inline void
162 set_is_dhcpv6_pd_prefix (prefix_info_t * prefix_info, u8 value)
164 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
165 ip6_prefix_main_t *pm = &ip6_prefix_main;
168 prefix_index = prefix_info - pm->prefix_pool;
169 rm->prefix_ownership_bitmap =
170 clib_bitmap_set (rm->prefix_ownership_bitmap, prefix_index, value);
174 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add);
177 notify_prefix_add_del (u32 prefix_index, u8 is_add)
179 // TODO: use registries
180 cp_ip6_address_prefix_add_del_handler (prefix_index, is_add);
184 send_client_message_start_stop (u32 sw_if_index, u32 server_index,
185 u8 msg_type, prefix_info_t * prefix_list,
188 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
189 dhcp6_pd_send_client_message_params_t params = { 0, };
190 dhcp6_pd_send_client_message_params_prefix_t *prefixes = 0, *pref;
193 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
194 rm->client_state_by_sw_if_index[sw_if_index].enabled);
195 client_state_t *client_state =
196 &rm->client_state_by_sw_if_index[sw_if_index];
198 params.sw_if_index = sw_if_index;
199 params.server_index = server_index;
200 params.msg_type = msg_type;
203 if (msg_type == DHCPV6_MSG_SOLICIT)
208 else if (msg_type == DHCPV6_MSG_REQUEST)
214 else if (msg_type == DHCPV6_MSG_RENEW)
218 f64 current_time = vlib_time_now (rm->vlib_main);
219 i32 diff_time = client_state->T2 - current_time;
222 params.mrd = diff_time;
224 else if (msg_type == DHCPV6_MSG_REBIND)
228 f64 current_time = vlib_time_now (rm->vlib_main);
229 i32 diff_time = rm->max_valid_due_time - current_time;
232 params.mrd = diff_time;
234 else if (msg_type == DHCPV6_MSG_RELEASE)
242 if (vec_len (prefix_list) != 0)
243 vec_validate (prefixes, vec_len (prefix_list) - 1);
244 for (i = 0; i < vec_len (prefix_list); i++)
246 prefix_info_t *prefix = &prefix_list[i];
248 pref->valid_lt = prefix->valid_lt;
249 pref->preferred_lt = prefix->preferred_lt;
250 pref->prefix = prefix->prefix;
251 pref->prefix_length = prefix->prefix_length;
253 params.prefixes = prefixes;
255 dhcp6_pd_send_client_message (rm->vlib_main, sw_if_index, !start, ¶ms);
257 vec_free (params.prefixes);
260 static void interrupt_process (void);
263 ip6_enable (u32 sw_if_index)
265 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
268 rv = enable_ip6_interface (rm->vlib_main, sw_if_index);
274 ip6_prefixes_equal (ip6_address_t * prefix1, ip6_address_t * prefix2, u8 len)
278 if (prefix1->as_u64[0] != prefix2->as_u64[0])
282 return clib_net_to_host_u64 (prefix1->as_u64[1]) >> (128 - len) ==
283 clib_net_to_host_u64 (prefix2->as_u64[1]) >> (128 - len);
285 return clib_net_to_host_u64 (prefix1->as_u64[0]) >> (64 - len) ==
286 clib_net_to_host_u64 (prefix2->as_u64[0]) >> (64 - len);
289 static clib_error_t *
290 dhcp6_pd_reply_event_handler (vl_api_dhcp6_pd_reply_event_t * mp)
292 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
293 ip6_prefix_main_t *pm = &ip6_prefix_main;
294 vlib_main_t *vm = rm->vlib_main;
295 client_state_t *client_state;
296 ip6_address_t *prefix;
299 vl_api_dhcp6_pd_prefix_info_t *api_prefix;
300 u32 inner_status_code;
304 clib_error_t *error = 0;
307 current_time = vlib_time_now (vm);
309 sw_if_index = ntohl (mp->sw_if_index);
311 if (sw_if_index >= vec_len (rm->client_state_by_sw_if_index))
314 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
316 if (!client_state->enabled)
319 server_index = ntohl (mp->server_index);
321 n_prefixes = ntohl (mp->n_prefixes);
323 inner_status_code = ntohs (mp->inner_status_code);
324 status_code = ntohs (mp->status_code);
326 if (mp->msg_type == DHCPV6_MSG_ADVERTISE
327 && client_state->server_index == ~0)
329 prefix_info_t *prefix_list = 0, *prefix_info;
332 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
335 ("Advertise message arrived with NoPrefixAvail status code");
340 vec_validate (prefix_list, n_prefixes - 1);
341 for (i = 0; i < n_prefixes; i++)
343 api_prefix = &mp->prefixes[i];
344 prefix = (ip6_address_t *) api_prefix->prefix;
345 prefix_length = api_prefix->prefix_length;
347 prefix_info = &prefix_list[i];
348 prefix_info->prefix = *prefix;
349 prefix_info->prefix_length = prefix_length;
350 prefix_info->preferred_lt = 0;
351 prefix_info->valid_lt = 0;
354 client_state->server_index = server_index;
356 send_client_message_start_stop (sw_if_index, server_index,
357 DHCPV6_MSG_REQUEST, prefix_list, 1);
358 vec_free (prefix_list);
361 if (mp->msg_type != DHCPV6_MSG_REPLY)
364 if (!client_state->rebinding && client_state->server_index != server_index)
366 clib_warning ("Reply message arrived with Server ID different "
367 "from that in Request or Renew message");
371 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
373 clib_warning ("Reply message arrived with NoPrefixAvail status code");
377 ("Invalid Reply message arrived: It contains NoPrefixAvail "
378 "status code but also contains prefixes");
383 if (status_code == DHCPV6_STATUS_UNSPEC_FAIL)
385 clib_warning ("Reply message arrived with UnspecFail status code");
389 send_client_message_start_stop (sw_if_index, server_index,
392 for (i = 0; i < n_prefixes; i++)
394 prefix_info_t *prefix_info = 0;
399 api_prefix = &mp->prefixes[i];
401 prefix = (ip6_address_t *) api_prefix->prefix;
402 prefix_length = api_prefix->prefix_length;
404 if (ip6_address_is_link_local_unicast (prefix))
407 valid_time = ntohl (api_prefix->valid_time);
408 preferred_time = ntohl (api_prefix->preferred_time);
409 prefix_length = api_prefix->prefix_length;
411 if (preferred_time > valid_time)
414 u8 address_prefix_present = 0;
416 pool_foreach (prefix_info, pm->prefix_pool,
418 if (is_dhcpv6_pd_prefix (prefix_info) &&
419 prefix_info->opaque_data == sw_if_index &&
420 prefix_info->prefix_length == prefix_length &&
421 ip6_prefixes_equal (&prefix_info->prefix, prefix, prefix_length))
423 address_prefix_present = 1;
424 goto prefix_pool_foreach_out;
428 prefix_pool_foreach_out:
430 if (address_prefix_present)
432 prefix_info->preferred_lt = preferred_time;
433 prefix_info->valid_lt = valid_time;
434 prefix_info->due_time = current_time + valid_time;
435 if (prefix_info->due_time > rm->max_valid_due_time)
436 rm->max_valid_due_time = prefix_info->due_time;
443 pool_get (pm->prefix_pool, prefix_info);
444 prefix_info->prefix_group_index = client_state->prefix_group_index;
445 set_is_dhcpv6_pd_prefix (prefix_info, 1);
446 prefix_info->opaque_data = sw_if_index;
447 prefix_info->prefix_length = prefix_length;
448 prefix_info->prefix = *prefix;
449 prefix_info->preferred_lt = preferred_time;
450 prefix_info->valid_lt = valid_time;
451 prefix_info->due_time = current_time + valid_time;
452 if (prefix_info->due_time > rm->max_valid_due_time)
453 rm->max_valid_due_time = prefix_info->due_time;
454 rm->client_state_by_sw_if_index[sw_if_index].prefix_count++;
456 u32 prefix_index = prefix_info - pm->prefix_pool;
457 notify_prefix_add_del (prefix_index, 1);
460 client_state->server_index = server_index;
461 client_state->T1 = ntohl (mp->T1);
462 client_state->T2 = ntohl (mp->T2);
463 if (client_state->T1 != 0)
464 client_state->T1_due_time = current_time + client_state->T1;
465 if (client_state->T2 != 0)
466 client_state->T2_due_time = current_time + client_state->T2;
467 client_state->rebinding = 0;
469 interrupt_process ();
474 static prefix_info_t *
475 create_prefix_list (u32 sw_if_index)
477 ip6_prefix_main_t *pm = &ip6_prefix_main;
478 prefix_info_t *prefix_info, *prefix_list = 0;;
481 pool_foreach (prefix_info, pm->prefix_pool,
483 if (is_dhcpv6_pd_prefix (prefix_info) &&
484 prefix_info->opaque_data == sw_if_index)
486 u32 pos = vec_len (prefix_list);
487 vec_validate (prefix_list, pos);
488 clib_memcpy (&prefix_list[pos], prefix_info, sizeof (*prefix_info));
496 VNET_DHCP6_PD_REPLY_EVENT_FUNCTION (dhcp6_pd_reply_event_handler);
499 dhcp6_pd_client_cp_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
502 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
503 ip6_prefix_main_t *pm = &ip6_prefix_main;
504 prefix_info_t *prefix_info;
505 client_state_t *client_state;
506 f64 sleep_time = 1e9;
510 uword *event_data = 0;
515 vlib_process_wait_for_event_or_clock (vm, sleep_time);
516 event_type = vlib_process_get_events (vm, &event_data);
517 vec_reset_length (event_data);
519 if (event_type == DHCPV6_PD_EVENT_DISABLE)
521 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_DISABLED);
526 current_time = vlib_time_now (vm);
529 due_time = current_time + 1e9;
531 pool_foreach (prefix_info, pm->prefix_pool,
533 if (is_dhcpv6_pd_prefix (prefix_info))
535 if (prefix_info->due_time > current_time)
537 if (prefix_info->due_time < due_time)
538 due_time = prefix_info->due_time;
542 u32 prefix_index = prefix_info - pm->prefix_pool;
543 notify_prefix_add_del (prefix_index, 0);
544 u32 sw_if_index = prefix_info->opaque_data;
545 set_is_dhcpv6_pd_prefix (prefix_info, 0);
546 pool_put (pm->prefix_pool, prefix_info);
547 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
548 if (--client_state->prefix_count == 0)
550 client_state->rebinding = 0;
551 client_state->server_index = ~0;
552 send_client_message_start_stop (sw_if_index, ~0,
560 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
562 client_state_t *cs = &rm->client_state_by_sw_if_index[i];
563 if (cs->enabled && cs->server_index != ~0)
565 if (cs->T2_due_time > current_time)
567 if (cs->T2_due_time < due_time)
568 due_time = cs->T2_due_time;
569 if (cs->T1_due_time > current_time)
571 if (cs->T1_due_time < due_time)
572 due_time = cs->T1_due_time;
576 cs->T1_due_time = DBL_MAX;
577 prefix_info_t *prefix_list;
578 prefix_list = create_prefix_list (i);
579 send_client_message_start_stop (i, cs->server_index,
582 vec_free (prefix_list);
587 cs->T2_due_time = DBL_MAX;
588 prefix_info_t *prefix_list;
589 prefix_list = create_prefix_list (i);
591 send_client_message_start_stop (i, ~0,
594 vec_free (prefix_list);
598 current_time = vlib_time_now (vm);
600 while (due_time < current_time);
602 sleep_time = due_time - current_time;
609 VLIB_REGISTER_NODE (dhcp6_pd_client_cp_process_node) = {
610 .function = dhcp6_pd_client_cp_process,
611 .type = VLIB_NODE_TYPE_PROCESS,
612 .name = "dhcp6-pd-client-cp-process",
617 interrupt_process (void)
619 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
620 vlib_main_t *vm = rm->vlib_main;
622 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
623 DHCPV6_PD_EVENT_INTERRUPT, 0);
627 disable_process (void)
629 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
630 vlib_main_t *vm = rm->vlib_main;
632 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
633 DHCPV6_PD_EVENT_DISABLE, 0);
637 enable_process (void)
639 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
640 vlib_main_t *vm = rm->vlib_main;
643 node = vec_elt (vm->node_main.nodes, rm->node_index);
645 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_POLLING);
646 vlib_start_process (vm, node->runtime_index);
650 cp_ip6_construct_address (ip6_address_info_t * address_info, u32 prefix_index,
651 ip6_address_t * r_addr)
653 ip6_prefix_main_t *pm = &ip6_prefix_main;
654 prefix_info_t *prefix;
655 u64 mask, addr0, pref;
657 addr0 = clib_net_to_host_u64 (address_info->address.as_u64[0]);
658 prefix = &pm->prefix_pool[prefix_index];
659 if (prefix->prefix_length > 64)
661 clib_warning ("Prefix length is bigger that 64 bits");
664 mask = ((u64) 1 << (64 - prefix->prefix_length)) - 1;
666 pref = clib_host_to_net_u64 (prefix->prefix.as_u64[0]);
669 r_addr->as_u64[0] = clib_host_to_net_u64 (addr0);
670 r_addr->as_u64[1] = address_info->address.as_u64[1];
676 cp_ip6_address_add_del_now (ip6_address_info_t * address_info, u8 is_add)
678 vlib_main_t *vm = vlib_get_main ();
683 if (address_info->prefix_group_index != ~0)
685 active_prefix_index_by_prefix_group_index_get
686 (address_info->prefix_group_index);
690 if (is_add && !address_info->configured_in_data_plane)
692 if (prefix_index != ~0)
694 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
698 ip6_add_del_interface_address (vm, address_info->sw_if_index,
699 &addr, address_info->prefix_length,
702 clib_warning ("Failed adding IPv6 address: %U",
703 format_clib_error, error);
705 address_info->configured_in_data_plane = 1;
709 if (address_info->prefix_group_index == ~0)
712 ip6_add_del_interface_address (vm, address_info->sw_if_index,
713 &address_info->address,
714 address_info->prefix_length,
717 clib_warning ("Failed adding IPv6 address: %U",
718 format_clib_error, error);
720 address_info->configured_in_data_plane = 1;
724 else if (!is_add && address_info->configured_in_data_plane)
726 if (prefix_index == ~0)
728 if (address_info->prefix_group_index == ~0)
731 ip6_add_del_interface_address (vm, address_info->sw_if_index,
732 &address_info->address,
733 address_info->prefix_length,
736 clib_warning ("Failed deleting IPv6 address: %U",
737 format_clib_error, error);
738 address_info->configured_in_data_plane = 0;
741 clib_warning ("Deleting address with prefix "
742 "but active prefix index is not set");
746 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
750 ip6_add_del_interface_address (vm, address_info->sw_if_index,
751 &addr, address_info->prefix_length,
754 clib_warning ("Failed deleting IPv6 address: %U",
755 format_clib_error, error);
756 address_info->configured_in_data_plane = 0;
762 cp_ip6_address_find_new_active_prefix (u32 prefix_group_index,
763 u32 ignore_prefix_index)
765 ip6_prefix_main_t *pm = &ip6_prefix_main;
766 prefix_info_t *prefix_info;
769 pool_foreach (prefix_info, pm->prefix_pool,
771 if (prefix_info->prefix_group_index == prefix_group_index &&
772 prefix_info - pm->prefix_pool != ignore_prefix_index)
773 return prefix_info - pm->prefix_pool;
780 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add)
782 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
783 ip6_prefix_main_t *pm = &ip6_prefix_main;
784 ip6_address_info_t *address_info;
785 prefix_info_t *prefix;
786 u32 new_prefix_index;
787 u32 prefix_group_index;
790 prefix = &pm->prefix_pool[prefix_index];
791 prefix_group_index = prefix->prefix_group_index;
795 if (active_prefix_index_by_prefix_group_index_get
796 (prefix_group_index) == ~0)
798 active_prefix_index_by_prefix_group_index_set
799 (prefix_group_index, prefix_index);
800 for (i = 0; i < vec_len (apm->addresses); i++)
802 address_info = &apm->addresses[i];
803 if (address_info->prefix_group_index == prefix_group_index)
804 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
810 if (active_prefix_index_by_prefix_group_index_get
811 (prefix_group_index) == prefix_index)
813 for (i = 0; i < vec_len (apm->addresses); i++)
815 address_info = &apm->addresses[i];
816 if (address_info->prefix_group_index == prefix_group_index)
817 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
819 active_prefix_index_by_prefix_group_index_set
820 (prefix_group_index, ~0);
822 cp_ip6_address_find_new_active_prefix (prefix_group_index,
824 if (new_prefix_index != ~0)
826 active_prefix_index_by_prefix_group_index_set
827 (prefix_group_index, new_prefix_index);
828 for (i = 0; i < vec_len (apm->addresses); i++)
830 address_info = &apm->addresses[i];
831 if (address_info->prefix_group_index == prefix_group_index)
832 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
840 prefix_group_find_or_create (const u8 * name, u8 create)
842 ip6_prefix_main_t *pm = &ip6_prefix_main;
847 for (i = 0; i < vec_len (pm->prefix_group_name_by_index); i++)
849 if (pm->prefix_group_name_by_index[i] == 0)
852 strcmp ((const char *) pm->prefix_group_name_by_index[i],
853 (const char *) name))
858 name_dup = (u8 *) strdup ((const char *) name);
859 if (free_index != ~0)
861 pm->prefix_group_name_by_index[free_index] = name_dup;
866 vec_add1 (pm->prefix_group_name_by_index, name_dup);
867 return vec_len (pm->prefix_group_name_by_index) - 1;
872 cp_ip6_address_add_del (u32 sw_if_index, const u8 * prefix_group,
873 ip6_address_t address, u8 prefix_length, u8 is_add)
876 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
877 vnet_main_t *vnm = vnet_get_main ();
878 ip6_address_info_t *address_info;
879 u32 prefix_group_index;
882 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
884 clib_warning ("Invalid sw_if_index");
885 return VNET_API_ERROR_INVALID_VALUE;
888 if (prefix_group != 0 && prefix_group[0] != '\0')
890 if (strnlen ((const char *) prefix_group, 64) == 64)
891 return VNET_API_ERROR_INVALID_VALUE;
893 prefix_group_index = prefix_group_find_or_create (prefix_group, 1);
896 prefix_group_index = ~0;
898 n = vec_len (apm->addresses);
900 vec_foreach (address_info, apm->addresses)
902 if (address_info->sw_if_index == sw_if_index &&
903 address_info->prefix_group_index == prefix_group_index &&
904 address_info->prefix_length == prefix_length &&
905 0 == memcmp (&address_info->address, &address, 16))
908 return VNET_API_ERROR_DUPLICATE_IF_ADDRESS;
909 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
910 *address_info = apm->addresses[n - 1];
911 _vec_len (apm->addresses) = n - 1;
917 return VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
919 vec_validate (apm->addresses, n);
920 address_info = &apm->addresses[n];
921 address_info->sw_if_index = sw_if_index;
922 address_info->prefix_group_index = prefix_group_index;
923 address_info->address = address;
924 address_info->prefix_length = prefix_length;
925 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
931 vl_api_ip6_add_del_address_using_prefix_t_handler
932 (vl_api_ip6_add_del_address_using_prefix_t * mp)
934 vl_api_ip6_add_del_address_using_prefix_reply_t *rmp;
936 ip6_address_t address;
940 VALIDATE_SW_IF_INDEX (mp);
942 sw_if_index = ntohl (mp->sw_if_index);
944 memcpy (address.as_u8, mp->address, 16);
945 prefix_length = mp->prefix_length;
948 cp_ip6_address_add_del (sw_if_index, mp->prefix_group, address,
949 prefix_length, mp->is_add);
951 BAD_SW_IF_INDEX_LABEL;
953 REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY);
956 static clib_error_t *
957 cp_ip6_address_add_del_command_function (vlib_main_t * vm,
958 unformat_input_t * input,
959 vlib_cli_command_t * cmd)
961 vnet_main_t *vnm = vnet_get_main ();
962 clib_error_t *error = 0;
963 u32 sw_if_index = ~0;
964 u8 *prefix_group = 0;
965 ip6_address_t address;
970 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
973 (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index));
974 else if (unformat (input, "prefix group %s", &prefix_group));
977 (input, "%U/%d", unformat_ip6_address, &address, &prefix_length))
979 else if (unformat (input, "del"))
983 error = clib_error_return (0, "unexpected input `%U'",
984 format_unformat_error, input);
989 if (sw_if_index == ~0)
990 error = clib_error_return (0, "Missing sw_if_index");
991 else if (address_set == 0)
992 error = clib_error_return (0, "Missing address");
995 if (cp_ip6_address_add_del
996 (sw_if_index, prefix_group, address, prefix_length, add) != 0)
997 error = clib_error_return (0, "Error adding or removing address");
1005 * This command is used to add/delete IPv6 address
1006 * potentially using available prefix from specified prefix group
1010 * Example of how to add IPv6 address:
1011 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
1012 * prefix group my-prefix-group ::7/64}
1013 * Example of how to delete IPv6 address:
1014 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
1015 * prefix group my-prefix-group ::7/64 del}
1019 VLIB_CLI_COMMAND (ip6_address_add_del_command, static) = {
1020 .path = "set ip6 address",
1021 .short_help = "set ip6 address <interface> [prefix group <string>] "
1023 .function = cp_ip6_address_add_del_command_function,
1027 static clib_error_t *
1028 cp_ip6_addresses_show_command_function (vlib_main_t * vm,
1029 unformat_input_t * input,
1030 vlib_cli_command_t * cmd)
1032 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
1033 ip6_prefix_main_t *pm = &ip6_prefix_main;
1034 ip6_address_info_t *address_info;
1035 const u8 *prefix_group;
1036 clib_error_t *error = 0;
1039 for (i = 0; i < vec_len (apm->addresses); i++)
1041 address_info = &apm->addresses[i];
1042 if (address_info->prefix_group_index == ~0)
1043 prefix_group = (const u8 *) "NONE";
1046 pm->prefix_group_name_by_index[address_info->prefix_group_index];
1047 vlib_cli_output (vm,
1048 "sw_if_index: %u, prefix_group: %s, address: %U/%d",
1049 address_info->sw_if_index, prefix_group,
1050 format_ip6_address, &address_info->address,
1051 address_info->prefix_length);
1058 VLIB_CLI_COMMAND (ip6_addresses_show_command, static) = {
1059 .path = "show ip6 addresses",
1060 .short_help = "show ip6 addresses",
1061 .function = cp_ip6_addresses_show_command_function,
1065 static clib_error_t *
1066 cp_ip6_prefixes_show_command_function (vlib_main_t * vm,
1067 unformat_input_t * input,
1068 vlib_cli_command_t * cmd)
1070 ip6_prefix_main_t *pm = &ip6_prefix_main;
1071 clib_error_t *error = 0;
1072 prefix_info_t *prefix_info;
1073 const u8 *prefix_group;
1074 f64 current_time = vlib_time_now (vm);
1077 pool_foreach (prefix_info, pm->prefix_pool,
1080 pm->prefix_group_name_by_index[prefix_info->prefix_group_index];
1081 vlib_cli_output (vm, "opaque_data: %lu, prefix: %U/%d, prefix group: %s, "
1082 "preferred lifetime: %u, valid lifetime: %u "
1084 prefix_info->opaque_data, format_ip6_address,
1085 &prefix_info->prefix, prefix_info->prefix_length,
1087 prefix_info->preferred_lt, prefix_info->valid_lt,
1088 prefix_info->due_time - current_time);
1096 VLIB_CLI_COMMAND (ip6_prefixes_show_command, static) = {
1097 .path = "show ip6 prefixes",
1098 .short_help = "show ip6 prefixes",
1099 .function = cp_ip6_prefixes_show_command_function,
1103 static clib_error_t *
1104 ip6_pd_clients_show_command_function (vlib_main_t * vm,
1105 unformat_input_t * input,
1106 vlib_cli_command_t * cmd)
1108 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1109 ip6_prefix_main_t *pm = &ip6_prefix_main;
1110 clib_error_t *error = 0;
1112 f64 current_time = vlib_time_now (vm);
1113 const u8 *prefix_group;
1116 const char *rebinding;
1119 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
1121 cs = &rm->client_state_by_sw_if_index[i];
1124 if (cs->T1_due_time != DBL_MAX && cs->T1_due_time > current_time)
1126 sprintf (buf1, "%u remaining",
1127 (u32) round (cs->T1_due_time - current_time));
1130 sprintf (buf1, "timeout");
1131 if (cs->T2_due_time != DBL_MAX && cs->T2_due_time > current_time)
1132 sprintf (buf2, "%u remaining",
1133 (u32) round (cs->T2_due_time - current_time));
1135 sprintf (buf2, "timeout");
1137 rebinding = ", REBINDING";
1141 pm->prefix_group_name_by_index[cs->prefix_group_index];
1143 vlib_cli_output (vm,
1144 "sw_if_index: %u, prefix group: %s, T1: %u (%s), "
1145 "T2: %u (%s), server index: %d%s", i,
1146 prefix_group, cs->T1, buf1, cs->T2, buf2,
1147 cs->server_index, rebinding);
1149 vlib_cli_output (vm, "sw_if_index: %u, prefix group: %s%s", i,
1150 prefix_group, rebinding);
1158 VLIB_CLI_COMMAND (ip6_pd_clients_show_command, static) = {
1159 .path = "show ip6 pd clients",
1160 .short_help = "show ip6 pd clients",
1161 .function = ip6_pd_clients_show_command_function,
1166 dhcp6_pd_client_enable_disable (u32 sw_if_index, const u8 * prefix_group,
1169 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1170 ip6_prefix_main_t *pm = &ip6_prefix_main;
1171 vnet_main_t *vnm = rm->vnet_main;
1172 client_state_t *client_state;
1173 static client_state_t empty_config = {
1176 prefix_info_t *prefix_info;
1177 prefix_info_t *prefix_list = 0;
1178 u32 prefix_group_index;
1180 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
1182 clib_warning ("Invalid sw_if_index");
1183 return VNET_API_ERROR_INVALID_VALUE;
1186 vec_validate_init_empty (rm->client_state_by_sw_if_index, sw_if_index,
1188 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
1190 u8 old_enabled = client_state->enabled;
1194 if (strnlen ((const char *) prefix_group, 64) == 64
1195 || prefix_group[0] == '\0')
1196 return VNET_API_ERROR_INVALID_VALUE;
1197 prefix_group_index =
1198 prefix_group_find_or_create (prefix_group, !old_enabled);
1200 && prefix_group_index != client_state->prefix_group_index)
1201 return VNET_API_ERROR_INVALID_VALUE;
1204 if (!old_enabled && enable)
1206 client_state->enabled = 1;
1207 client_state->prefix_group_index = prefix_group_index;
1208 ASSERT (client_state->prefix_group_index != ~0);
1209 client_state->server_index = ~0;
1212 if (rm->n_clients == 1)
1215 dhcp6_clients_enable_disable (1);
1218 ip6_enable (sw_if_index);
1219 send_client_message_start_stop (sw_if_index, ~0, DHCPV6_MSG_SOLICIT,
1222 else if (old_enabled && !enable)
1224 send_client_message_start_stop (sw_if_index, ~0, ~0, 0, 0);
1227 if (rm->n_clients == 0)
1229 dhcp6_clients_enable_disable (0);
1233 vec_validate (prefix_list, 0);
1236 pool_foreach (prefix_info, pm->prefix_pool,
1238 if (is_dhcpv6_pd_prefix (prefix_info) &&
1239 prefix_info->opaque_data == sw_if_index)
1241 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
1242 rm->client_state_by_sw_if_index[sw_if_index].enabled);
1243 client_state_t *client_state =
1244 &rm->client_state_by_sw_if_index[sw_if_index];
1245 prefix_list[0] = *prefix_info;
1246 send_client_message_start_stop (sw_if_index,
1247 client_state->server_index,
1248 DHCPV6_MSG_RELEASE, prefix_list,
1250 u32 prefix_index = prefix_info - pm->prefix_pool;
1251 notify_prefix_add_del (prefix_index, 0);
1252 set_is_dhcpv6_pd_prefix (prefix_info, 0);
1253 pool_put (pm->prefix_pool, prefix_info);
1258 vec_free (prefix_list);
1260 clib_memset (client_state, 0, sizeof (*client_state));
1266 static clib_error_t *
1267 dhcp6_pd_client_enable_disable_command_fn (vlib_main_t *
1270 * input, vlib_cli_command_t * cmd)
1272 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1273 vnet_main_t *vnm = rm->vnet_main;
1274 clib_error_t *error = 0;
1275 u8 *prefix_group = 0;
1276 u32 sw_if_index = ~0;
1279 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1282 (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
1284 else if (unformat (input, "prefix group %s", &prefix_group));
1285 else if (unformat (input, "disable"))
1289 error = clib_error_return (0, "unexpected input `%U'",
1290 format_unformat_error, input);
1295 if (prefix_group == 0 && enable)
1296 error = clib_error_return (0, "Prefix group must be set when enabling");
1297 else if (sw_if_index != ~0)
1299 if (dhcp6_pd_client_enable_disable (sw_if_index, prefix_group, enable)
1301 error = clib_error_return (0, "Invalid sw_if_index or prefix group");
1304 error = clib_error_return (0, "Missing sw_if_index");
1307 vec_free (prefix_group);
1313 * This command is used to enable/disable DHCPv6 PD client
1314 * on particular interface.
1318 * Example of how to enable DHCPv6 PD client:
1319 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 prefix group my-pd-group}
1320 * Example of how to disable DHCPv6 PD client:
1321 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 disable}
1325 VLIB_CLI_COMMAND (dhcp6_pd_client_enable_disable_command, static) = {
1326 .path = "dhcp6 pd client",
1327 .short_help = "dhcp6 pd client <interface> (prefix group <string> | disable)",
1328 .function = dhcp6_pd_client_enable_disable_command_fn,
1333 vl_api_dhcp6_pd_client_enable_disable_t_handler
1334 (vl_api_dhcp6_pd_client_enable_disable_t * mp)
1336 vl_api_dhcp6_pd_client_enable_disable_reply_t *rmp;
1340 VALIDATE_SW_IF_INDEX (mp);
1342 sw_if_index = ntohl (mp->sw_if_index);
1345 dhcp6_pd_client_enable_disable (sw_if_index, mp->prefix_group,
1348 BAD_SW_IF_INDEX_LABEL;
1350 REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY);
1353 #define vl_msg_name_crc_list
1354 #include <vnet/dhcp/dhcp6_pd_client_cp.api.h>
1355 #undef vl_msg_name_crc_list
1358 setup_message_id_table (api_main_t * am)
1360 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
1361 foreach_vl_msg_name_crc_dhcp6_pd_client_cp;
1365 static clib_error_t *
1366 dhcp_pd_client_cp_init (vlib_main_t * vm)
1368 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1369 api_main_t *am = &api_main;
1372 rm->vnet_main = vnet_get_main ();
1374 rm->node_index = dhcp6_pd_client_cp_process_node.index;
1377 vl_msg_api_set_handlers(VL_API_##N, #n, \
1378 vl_api_##n##_t_handler, \
1380 vl_api_##n##_t_endian, \
1381 vl_api_##n##_t_print, \
1382 sizeof(vl_api_##n##_t), 0/* do NOT trace! */);
1383 foreach_dhcp6_pd_client_cp_msg;
1387 * Set up the (msg_name, crc, message-id) table
1389 setup_message_id_table (am);
1394 VLIB_INIT_FUNCTION (dhcp_pd_client_cp_init);
1397 * fd.io coding-style-patch-verification: ON
1400 * eval: (c-set-style "gnu")