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 <dhcp/dhcp6_packet.h>
19 #include <dhcp/dhcp6_pd_client_dp.h>
20 #include <vnet/ip/ip.h>
21 #include <vnet/ip/ip6.h>
28 u32 prefix_group_index;
29 uword opaque_data; // used by prefix publisher
40 u32 prefix_group_index;
52 client_state_t *client_state_by_sw_if_index;
53 clib_bitmap_t *prefix_ownership_bitmap;
55 f64 max_valid_due_time;
58 vlib_main_t *vlib_main;
59 vnet_main_t *vnet_main;
62 } dhcp6_pd_client_cp_main_t;
64 static dhcp6_pd_client_cp_main_t dhcp6_pd_client_cp_main;
68 prefix_info_t *prefix_pool;
69 const u8 **prefix_group_name_by_index;
72 static ip6_prefix_main_t ip6_prefix_main;
78 u32 prefix_group_index;
79 ip6_address_t address;
83 u8 configured_in_data_plane;
88 ip6_address_info_t *addresses;
89 u32 *active_prefix_index_by_prefix_group_index;
90 } ip6_address_with_prefix_main_t;
92 static ip6_address_with_prefix_main_t ip6_address_with_prefix_main;
96 DHCPV6_PD_EVENT_INTERRUPT,
97 DHCPV6_PD_EVENT_DISABLE,
100 static_always_inline u32
101 active_prefix_index_by_prefix_group_index_get (u32 prefix_group_index)
103 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
105 if (prefix_group_index >=
106 vec_len (apm->active_prefix_index_by_prefix_group_index))
109 return apm->active_prefix_index_by_prefix_group_index[prefix_group_index];
112 static_always_inline void
113 active_prefix_index_by_prefix_group_index_set (u32 prefix_group_index,
116 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
117 static const u32 empty = ~0;
119 ASSERT (prefix_group_index != ~0);
121 if (prefix_index == ~0
122 && prefix_group_index >=
123 vec_len (apm->active_prefix_index_by_prefix_group_index))
126 vec_validate_init_empty (apm->active_prefix_index_by_prefix_group_index,
127 prefix_group_index, empty);
128 apm->active_prefix_index_by_prefix_group_index[prefix_group_index] =
132 static_always_inline u8
133 is_dhcpv6_pd_prefix (prefix_info_t * prefix_info)
135 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
136 ip6_prefix_main_t *pm = &ip6_prefix_main;
139 prefix_index = prefix_info - pm->prefix_pool;
140 return clib_bitmap_get (rm->prefix_ownership_bitmap, prefix_index);
143 static_always_inline void
144 set_is_dhcpv6_pd_prefix (prefix_info_t * prefix_info, u8 value)
146 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
147 ip6_prefix_main_t *pm = &ip6_prefix_main;
150 prefix_index = prefix_info - pm->prefix_pool;
151 rm->prefix_ownership_bitmap =
152 clib_bitmap_set (rm->prefix_ownership_bitmap, prefix_index, value);
156 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add);
159 notify_prefix_add_del (u32 prefix_index, u8 is_add)
161 // TODO: use registries
162 cp_ip6_address_prefix_add_del_handler (prefix_index, is_add);
166 send_client_message_start_stop (u32 sw_if_index, u32 server_index,
167 u8 msg_type, prefix_info_t * prefix_list,
170 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
171 dhcp6_pd_send_client_message_params_t params = { 0, };
172 dhcp6_pd_send_client_message_params_prefix_t *prefixes = 0, *pref;
175 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
176 rm->client_state_by_sw_if_index[sw_if_index].enabled);
177 client_state_t *client_state =
178 &rm->client_state_by_sw_if_index[sw_if_index];
180 params.sw_if_index = sw_if_index;
181 params.server_index = server_index;
182 params.msg_type = msg_type;
185 if (msg_type == DHCPV6_MSG_SOLICIT)
190 else if (msg_type == DHCPV6_MSG_REQUEST)
196 else if (msg_type == DHCPV6_MSG_RENEW)
200 f64 current_time = vlib_time_now (rm->vlib_main);
201 i32 diff_time = client_state->T2 - current_time;
204 params.mrd = diff_time;
206 else if (msg_type == DHCPV6_MSG_REBIND)
210 f64 current_time = vlib_time_now (rm->vlib_main);
211 i32 diff_time = rm->max_valid_due_time - current_time;
214 params.mrd = diff_time;
216 else if (msg_type == DHCPV6_MSG_RELEASE)
224 if (vec_len (prefix_list) != 0)
225 vec_validate (prefixes, vec_len (prefix_list) - 1);
226 for (i = 0; i < vec_len (prefix_list); i++)
228 prefix_info_t *prefix = &prefix_list[i];
230 pref->valid_lt = prefix->valid_lt;
231 pref->preferred_lt = prefix->preferred_lt;
232 pref->prefix = prefix->prefix;
233 pref->prefix_length = prefix->prefix_length;
235 params.prefixes = prefixes;
237 dhcp6_pd_send_client_message (rm->vlib_main, sw_if_index, !start, ¶ms);
239 vec_free (params.prefixes);
242 static void interrupt_process (void);
245 ip6_enable (u32 sw_if_index)
247 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
250 rv = enable_ip6_interface (rm->vlib_main, sw_if_index);
256 ip6_prefixes_equal (ip6_address_t * prefix1, ip6_address_t * prefix2, u8 len)
260 if (prefix1->as_u64[0] != prefix2->as_u64[0])
264 return clib_net_to_host_u64 (prefix1->as_u64[1]) >> (128 - len) ==
265 clib_net_to_host_u64 (prefix2->as_u64[1]) >> (128 - len);
267 return clib_net_to_host_u64 (prefix1->as_u64[0]) >> (64 - len) ==
268 clib_net_to_host_u64 (prefix2->as_u64[0]) >> (64 - len);
271 static clib_error_t *
272 dhcp6_pd_reply_event_handler (vl_api_dhcp6_pd_reply_event_t * mp)
274 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
275 ip6_prefix_main_t *pm = &ip6_prefix_main;
276 vlib_main_t *vm = rm->vlib_main;
277 client_state_t *client_state;
278 ip6_address_t *prefix;
281 vl_api_dhcp6_pd_prefix_info_t *api_prefix;
282 u32 inner_status_code;
286 clib_error_t *error = 0;
289 current_time = vlib_time_now (vm);
291 sw_if_index = ntohl (mp->sw_if_index);
293 if (sw_if_index >= vec_len (rm->client_state_by_sw_if_index))
296 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
298 if (!client_state->enabled)
301 server_index = ntohl (mp->server_index);
303 n_prefixes = ntohl (mp->n_prefixes);
305 inner_status_code = ntohs (mp->inner_status_code);
306 status_code = ntohs (mp->status_code);
308 if (mp->msg_type == DHCPV6_MSG_API_ADVERTISE
309 && client_state->server_index == ~0)
311 prefix_info_t *prefix_list = 0, *prefix_info;
314 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
317 ("Advertise message arrived with NoPrefixAvail status code");
322 vec_validate (prefix_list, n_prefixes - 1);
323 for (i = 0; i < n_prefixes; i++)
325 api_prefix = &mp->prefixes[i];
326 prefix = (ip6_address_t *) api_prefix->prefix.address;
327 prefix_length = api_prefix->prefix.len;
329 prefix_info = &prefix_list[i];
330 prefix_info->prefix = *prefix;
331 prefix_info->prefix_length = prefix_length;
332 prefix_info->preferred_lt = 0;
333 prefix_info->valid_lt = 0;
336 client_state->server_index = server_index;
338 send_client_message_start_stop (sw_if_index, server_index,
339 DHCPV6_MSG_REQUEST, prefix_list, 1);
340 vec_free (prefix_list);
343 if (mp->msg_type != DHCPV6_MSG_API_REPLY)
346 if (!client_state->rebinding && client_state->server_index != server_index)
348 clib_warning ("Reply message arrived with Server ID different "
349 "from that in Request or Renew message");
353 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
355 clib_warning ("Reply message arrived with NoPrefixAvail status code");
359 ("Invalid Reply message arrived: It contains NoPrefixAvail "
360 "status code but also contains prefixes");
365 if (status_code == DHCPV6_STATUS_UNSPEC_FAIL)
367 clib_warning ("Reply message arrived with UnspecFail status code");
371 send_client_message_start_stop (sw_if_index, server_index,
374 for (i = 0; i < n_prefixes; i++)
376 prefix_info_t *prefix_info = 0;
381 api_prefix = &mp->prefixes[i];
383 prefix = (ip6_address_t *) api_prefix->prefix.address;
384 prefix_length = api_prefix->prefix.len;
386 if (ip6_address_is_link_local_unicast (prefix))
389 valid_time = ntohl (api_prefix->valid_time);
390 preferred_time = ntohl (api_prefix->preferred_time);
391 prefix_length = api_prefix->prefix.len;
393 if (preferred_time > valid_time)
396 u8 address_prefix_present = 0;
398 pool_foreach (prefix_info, pm->prefix_pool,
400 if (is_dhcpv6_pd_prefix (prefix_info) &&
401 prefix_info->opaque_data == sw_if_index &&
402 prefix_info->prefix_length == prefix_length &&
403 ip6_prefixes_equal (&prefix_info->prefix, prefix, prefix_length))
405 address_prefix_present = 1;
406 goto prefix_pool_foreach_out;
410 prefix_pool_foreach_out:
412 if (address_prefix_present)
414 prefix_info->preferred_lt = preferred_time;
415 prefix_info->valid_lt = valid_time;
416 prefix_info->due_time = current_time + valid_time;
417 if (prefix_info->due_time > rm->max_valid_due_time)
418 rm->max_valid_due_time = prefix_info->due_time;
425 pool_get (pm->prefix_pool, prefix_info);
426 prefix_info->prefix_group_index = client_state->prefix_group_index;
427 set_is_dhcpv6_pd_prefix (prefix_info, 1);
428 prefix_info->opaque_data = sw_if_index;
429 prefix_info->prefix_length = prefix_length;
430 prefix_info->prefix = *prefix;
431 prefix_info->preferred_lt = preferred_time;
432 prefix_info->valid_lt = valid_time;
433 prefix_info->due_time = current_time + valid_time;
434 if (prefix_info->due_time > rm->max_valid_due_time)
435 rm->max_valid_due_time = prefix_info->due_time;
436 rm->client_state_by_sw_if_index[sw_if_index].prefix_count++;
438 u32 prefix_index = prefix_info - pm->prefix_pool;
439 notify_prefix_add_del (prefix_index, 1);
442 client_state->server_index = server_index;
443 client_state->T1 = ntohl (mp->T1);
444 client_state->T2 = ntohl (mp->T2);
445 if (client_state->T1 != 0)
446 client_state->T1_due_time = current_time + client_state->T1;
447 if (client_state->T2 != 0)
448 client_state->T2_due_time = current_time + client_state->T2;
449 client_state->rebinding = 0;
451 interrupt_process ();
456 static prefix_info_t *
457 create_prefix_list (u32 sw_if_index)
459 ip6_prefix_main_t *pm = &ip6_prefix_main;
460 prefix_info_t *prefix_info, *prefix_list = 0;;
463 pool_foreach (prefix_info, pm->prefix_pool,
465 if (is_dhcpv6_pd_prefix (prefix_info) &&
466 prefix_info->opaque_data == sw_if_index)
468 u32 pos = vec_len (prefix_list);
469 vec_validate (prefix_list, pos);
470 clib_memcpy (&prefix_list[pos], prefix_info, sizeof (*prefix_info));
478 VNET_DHCP6_PD_REPLY_EVENT_FUNCTION (dhcp6_pd_reply_event_handler);
481 dhcp6_pd_client_cp_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
484 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
485 ip6_prefix_main_t *pm = &ip6_prefix_main;
486 prefix_info_t *prefix_info;
487 client_state_t *client_state;
488 f64 sleep_time = 1e9;
492 uword *event_data = 0;
497 vlib_process_wait_for_event_or_clock (vm, sleep_time);
498 event_type = vlib_process_get_events (vm, &event_data);
499 vec_reset_length (event_data);
501 if (event_type == DHCPV6_PD_EVENT_DISABLE)
503 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_DISABLED);
508 current_time = vlib_time_now (vm);
511 due_time = current_time + 1e9;
513 pool_foreach (prefix_info, pm->prefix_pool,
515 if (is_dhcpv6_pd_prefix (prefix_info))
517 if (prefix_info->due_time > current_time)
519 if (prefix_info->due_time < due_time)
520 due_time = prefix_info->due_time;
524 u32 prefix_index = prefix_info - pm->prefix_pool;
525 notify_prefix_add_del (prefix_index, 0);
526 u32 sw_if_index = prefix_info->opaque_data;
527 set_is_dhcpv6_pd_prefix (prefix_info, 0);
528 pool_put (pm->prefix_pool, prefix_info);
529 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
530 if (--client_state->prefix_count == 0)
532 client_state->rebinding = 0;
533 client_state->server_index = ~0;
534 send_client_message_start_stop (sw_if_index, ~0,
542 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
544 client_state_t *cs = &rm->client_state_by_sw_if_index[i];
545 if (cs->enabled && cs->server_index != ~0)
547 if (cs->T2_due_time > current_time)
549 if (cs->T2_due_time < due_time)
550 due_time = cs->T2_due_time;
551 if (cs->T1_due_time > current_time)
553 if (cs->T1_due_time < due_time)
554 due_time = cs->T1_due_time;
558 cs->T1_due_time = DBL_MAX;
559 prefix_info_t *prefix_list;
560 prefix_list = create_prefix_list (i);
561 send_client_message_start_stop (i, cs->server_index,
564 vec_free (prefix_list);
569 cs->T2_due_time = DBL_MAX;
570 prefix_info_t *prefix_list;
571 prefix_list = create_prefix_list (i);
573 send_client_message_start_stop (i, ~0,
576 vec_free (prefix_list);
580 current_time = vlib_time_now (vm);
582 while (due_time < current_time);
584 sleep_time = due_time - current_time;
591 VLIB_REGISTER_NODE (dhcp6_pd_client_cp_process_node) = {
592 .function = dhcp6_pd_client_cp_process,
593 .type = VLIB_NODE_TYPE_PROCESS,
594 .name = "dhcp6-pd-client-cp-process",
599 interrupt_process (void)
601 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
602 vlib_main_t *vm = rm->vlib_main;
604 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
605 DHCPV6_PD_EVENT_INTERRUPT, 0);
609 disable_process (void)
611 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
612 vlib_main_t *vm = rm->vlib_main;
614 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
615 DHCPV6_PD_EVENT_DISABLE, 0);
619 enable_process (void)
621 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
622 vlib_main_t *vm = rm->vlib_main;
625 node = vec_elt (vm->node_main.nodes, rm->node_index);
627 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_POLLING);
628 vlib_start_process (vm, node->runtime_index);
632 cp_ip6_construct_address (ip6_address_info_t * address_info, u32 prefix_index,
633 ip6_address_t * r_addr)
635 ip6_prefix_main_t *pm = &ip6_prefix_main;
636 prefix_info_t *prefix;
637 u64 mask, addr0, pref;
639 addr0 = clib_net_to_host_u64 (address_info->address.as_u64[0]);
640 prefix = &pm->prefix_pool[prefix_index];
641 if (prefix->prefix_length > 64)
643 clib_warning ("Prefix length is bigger that 64 bits");
646 mask = ((u64) 1 << (64 - prefix->prefix_length)) - 1;
648 pref = clib_host_to_net_u64 (prefix->prefix.as_u64[0]);
651 r_addr->as_u64[0] = clib_host_to_net_u64 (addr0);
652 r_addr->as_u64[1] = address_info->address.as_u64[1];
658 cp_ip6_address_add_del_now (ip6_address_info_t * address_info, u8 is_add)
660 vlib_main_t *vm = vlib_get_main ();
665 if (address_info->prefix_group_index != ~0)
667 active_prefix_index_by_prefix_group_index_get
668 (address_info->prefix_group_index);
672 if (is_add && !address_info->configured_in_data_plane)
674 if (prefix_index != ~0)
676 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
680 ip6_add_del_interface_address (vm, address_info->sw_if_index,
681 &addr, address_info->prefix_length,
684 clib_warning ("Failed adding IPv6 address: %U",
685 format_clib_error, error);
687 address_info->configured_in_data_plane = 1;
691 if (address_info->prefix_group_index == ~0)
694 ip6_add_del_interface_address (vm, address_info->sw_if_index,
695 &address_info->address,
696 address_info->prefix_length,
699 clib_warning ("Failed adding IPv6 address: %U",
700 format_clib_error, error);
702 address_info->configured_in_data_plane = 1;
706 else if (!is_add && address_info->configured_in_data_plane)
708 if (prefix_index == ~0)
710 if (address_info->prefix_group_index == ~0)
713 ip6_add_del_interface_address (vm, address_info->sw_if_index,
714 &address_info->address,
715 address_info->prefix_length,
718 clib_warning ("Failed deleting IPv6 address: %U",
719 format_clib_error, error);
720 address_info->configured_in_data_plane = 0;
723 clib_warning ("Deleting address with prefix "
724 "but active prefix index is not set");
728 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
732 ip6_add_del_interface_address (vm, address_info->sw_if_index,
733 &addr, 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;
744 cp_ip6_address_find_new_active_prefix (u32 prefix_group_index,
745 u32 ignore_prefix_index)
747 ip6_prefix_main_t *pm = &ip6_prefix_main;
748 prefix_info_t *prefix_info;
751 pool_foreach (prefix_info, pm->prefix_pool,
753 if (prefix_info->prefix_group_index == prefix_group_index &&
754 prefix_info - pm->prefix_pool != ignore_prefix_index)
755 return prefix_info - pm->prefix_pool;
762 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add)
764 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
765 ip6_prefix_main_t *pm = &ip6_prefix_main;
766 ip6_address_info_t *address_info;
767 prefix_info_t *prefix;
768 u32 new_prefix_index;
769 u32 prefix_group_index;
772 prefix = &pm->prefix_pool[prefix_index];
773 prefix_group_index = prefix->prefix_group_index;
777 if (active_prefix_index_by_prefix_group_index_get
778 (prefix_group_index) == ~0)
780 active_prefix_index_by_prefix_group_index_set
781 (prefix_group_index, prefix_index);
782 for (i = 0; i < vec_len (apm->addresses); i++)
784 address_info = &apm->addresses[i];
785 if (address_info->prefix_group_index == prefix_group_index)
786 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
792 if (active_prefix_index_by_prefix_group_index_get
793 (prefix_group_index) == prefix_index)
795 for (i = 0; i < vec_len (apm->addresses); i++)
797 address_info = &apm->addresses[i];
798 if (address_info->prefix_group_index == prefix_group_index)
799 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
801 active_prefix_index_by_prefix_group_index_set
802 (prefix_group_index, ~0);
804 cp_ip6_address_find_new_active_prefix (prefix_group_index,
806 if (new_prefix_index != ~0)
808 active_prefix_index_by_prefix_group_index_set
809 (prefix_group_index, new_prefix_index);
810 for (i = 0; i < vec_len (apm->addresses); i++)
812 address_info = &apm->addresses[i];
813 if (address_info->prefix_group_index == prefix_group_index)
814 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
822 prefix_group_find_or_create (const u8 * name, u8 create)
824 ip6_prefix_main_t *pm = &ip6_prefix_main;
829 for (i = 0; i < vec_len (pm->prefix_group_name_by_index); i++)
831 if (pm->prefix_group_name_by_index[i] == 0)
834 strcmp ((const char *) pm->prefix_group_name_by_index[i],
835 (const char *) name))
840 name_dup = (u8 *) strdup ((const char *) name);
841 if (free_index != ~0)
843 pm->prefix_group_name_by_index[free_index] = name_dup;
848 vec_add1 (pm->prefix_group_name_by_index, name_dup);
849 return vec_len (pm->prefix_group_name_by_index) - 1;
854 dhcp6_cp_ip6_address_add_del (u32 sw_if_index, const u8 * prefix_group,
855 ip6_address_t address, u8 prefix_length,
859 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
860 vnet_main_t *vnm = vnet_get_main ();
861 ip6_address_info_t *address_info;
862 u32 prefix_group_index;
865 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
867 clib_warning ("Invalid sw_if_index");
868 return VNET_API_ERROR_INVALID_VALUE;
871 if (prefix_group != 0 && prefix_group[0] != '\0')
873 if (strnlen ((const char *) prefix_group, 64) == 64)
874 return VNET_API_ERROR_INVALID_VALUE;
876 prefix_group_index = prefix_group_find_or_create (prefix_group, 1);
879 prefix_group_index = ~0;
881 n = vec_len (apm->addresses);
883 vec_foreach (address_info, apm->addresses)
885 if (address_info->sw_if_index == sw_if_index &&
886 address_info->prefix_group_index == prefix_group_index &&
887 address_info->prefix_length == prefix_length &&
888 0 == memcmp (&address_info->address, &address, 16))
891 return VNET_API_ERROR_DUPLICATE_IF_ADDRESS;
892 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
893 *address_info = apm->addresses[n - 1];
894 _vec_len (apm->addresses) = n - 1;
900 return VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
902 vec_validate (apm->addresses, n);
903 address_info = &apm->addresses[n];
904 address_info->sw_if_index = sw_if_index;
905 address_info->prefix_group_index = prefix_group_index;
906 address_info->address = address;
907 address_info->prefix_length = prefix_length;
908 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
913 static clib_error_t *
914 cp_ip6_address_add_del_command_function (vlib_main_t * vm,
915 unformat_input_t * input,
916 vlib_cli_command_t * cmd)
918 vnet_main_t *vnm = vnet_get_main ();
919 clib_error_t *error = 0;
920 u32 sw_if_index = ~0;
921 u8 *prefix_group = 0;
922 ip6_address_t address;
926 unformat_input_t _line_input, *line_input = &_line_input;
928 if (!unformat_user (input, unformat_line_input, line_input))
931 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
934 (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index));
935 else if (unformat (line_input, "prefix group %s", &prefix_group));
937 if (unformat (line_input, "%U/%d", unformat_ip6_address,
938 &address, &prefix_length))
940 else if (unformat (line_input, "del"))
944 error = clib_error_return (0, "unexpected input `%U'",
945 format_unformat_error, line_input);
946 unformat_free (line_input);
951 unformat_free (line_input);
953 if (sw_if_index == ~0)
954 error = clib_error_return (0, "Missing sw_if_index");
955 else if (address_set == 0)
956 error = clib_error_return (0, "Missing address");
959 if (dhcp6_cp_ip6_address_add_del
960 (sw_if_index, prefix_group, address, prefix_length, add) != 0)
961 error = clib_error_return (0, "Error adding or removing address");
969 * This command is used to add/delete IPv6 address
970 * potentially using available prefix from specified prefix group
974 * Example of how to add IPv6 address:
975 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
976 * prefix group my-prefix-group ::7/64}
977 * Example of how to delete IPv6 address:
978 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
979 * prefix group my-prefix-group ::7/64 del}
983 VLIB_CLI_COMMAND (ip6_address_add_del_command, static) = {
984 .path = "set ip6 address",
985 .short_help = "set ip6 address <interface> [prefix group <string>] "
987 .function = cp_ip6_address_add_del_command_function,
991 static clib_error_t *
992 cp_ip6_addresses_show_command_function (vlib_main_t * vm,
993 unformat_input_t * input,
994 vlib_cli_command_t * cmd)
996 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
997 ip6_prefix_main_t *pm = &ip6_prefix_main;
998 ip6_address_info_t *address_info;
999 const u8 *prefix_group;
1000 clib_error_t *error = 0;
1003 for (i = 0; i < vec_len (apm->addresses); i++)
1005 address_info = &apm->addresses[i];
1006 if (address_info->prefix_group_index == ~0)
1007 prefix_group = (const u8 *) "NONE";
1010 pm->prefix_group_name_by_index[address_info->prefix_group_index];
1011 vlib_cli_output (vm,
1012 "sw_if_index: %u, prefix_group: %s, address: %U/%d",
1013 address_info->sw_if_index, prefix_group,
1014 format_ip6_address, &address_info->address,
1015 address_info->prefix_length);
1022 VLIB_CLI_COMMAND (ip6_addresses_show_command, static) = {
1023 .path = "show ip6 addresses",
1024 .short_help = "show ip6 addresses",
1025 .function = cp_ip6_addresses_show_command_function,
1029 static clib_error_t *
1030 cp_ip6_prefixes_show_command_function (vlib_main_t * vm,
1031 unformat_input_t * input,
1032 vlib_cli_command_t * cmd)
1034 ip6_prefix_main_t *pm = &ip6_prefix_main;
1035 clib_error_t *error = 0;
1036 prefix_info_t *prefix_info;
1037 const u8 *prefix_group;
1038 f64 current_time = vlib_time_now (vm);
1041 pool_foreach (prefix_info, pm->prefix_pool,
1044 pm->prefix_group_name_by_index[prefix_info->prefix_group_index];
1045 vlib_cli_output (vm, "opaque_data: %lu, prefix: %U/%d, prefix group: %s, "
1046 "preferred lifetime: %u, valid lifetime: %u "
1048 prefix_info->opaque_data, format_ip6_address,
1049 &prefix_info->prefix, prefix_info->prefix_length,
1051 prefix_info->preferred_lt, prefix_info->valid_lt,
1052 prefix_info->due_time - current_time);
1060 VLIB_CLI_COMMAND (ip6_prefixes_show_command, static) = {
1061 .path = "show ip6 prefixes",
1062 .short_help = "show ip6 prefixes",
1063 .function = cp_ip6_prefixes_show_command_function,
1067 static clib_error_t *
1068 ip6_pd_clients_show_command_function (vlib_main_t * vm,
1069 unformat_input_t * input,
1070 vlib_cli_command_t * cmd)
1072 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1073 ip6_prefix_main_t *pm = &ip6_prefix_main;
1074 clib_error_t *error = 0;
1076 f64 current_time = vlib_time_now (vm);
1077 const u8 *prefix_group;
1080 const char *rebinding;
1083 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
1085 cs = &rm->client_state_by_sw_if_index[i];
1088 if (cs->T1_due_time != DBL_MAX && cs->T1_due_time > current_time)
1090 sprintf (buf1, "%u remaining",
1091 (u32) round (cs->T1_due_time - current_time));
1094 sprintf (buf1, "timeout");
1095 if (cs->T2_due_time != DBL_MAX && cs->T2_due_time > current_time)
1096 sprintf (buf2, "%u remaining",
1097 (u32) round (cs->T2_due_time - current_time));
1099 sprintf (buf2, "timeout");
1101 rebinding = ", REBINDING";
1105 pm->prefix_group_name_by_index[cs->prefix_group_index];
1107 vlib_cli_output (vm,
1108 "sw_if_index: %u, prefix group: %s, T1: %u (%s), "
1109 "T2: %u (%s), server index: %d%s", i,
1110 prefix_group, cs->T1, buf1, cs->T2, buf2,
1111 cs->server_index, rebinding);
1113 vlib_cli_output (vm, "sw_if_index: %u, prefix group: %s%s", i,
1114 prefix_group, rebinding);
1122 VLIB_CLI_COMMAND (ip6_pd_clients_show_command, static) = {
1123 .path = "show ip6 pd clients",
1124 .short_help = "show ip6 pd clients",
1125 .function = ip6_pd_clients_show_command_function,
1132 dhcp6_pd_client_enable_disable (u32 sw_if_index,
1133 const u8 * prefix_group, u8 enable)
1135 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1136 ip6_prefix_main_t *pm = &ip6_prefix_main;
1137 vnet_main_t *vnm = rm->vnet_main;
1138 client_state_t *client_state;
1139 static client_state_t empty_config = {
1142 prefix_info_t *prefix_info;
1143 prefix_info_t *prefix_list = 0;
1144 u32 prefix_group_index;
1146 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
1148 clib_warning ("Invalid sw_if_index");
1149 return VNET_API_ERROR_INVALID_VALUE;
1152 vec_validate_init_empty (rm->client_state_by_sw_if_index, sw_if_index,
1154 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
1156 u8 old_enabled = client_state->enabled;
1160 if (strnlen ((const char *) prefix_group, 64) == 64
1161 || prefix_group[0] == '\0')
1162 return VNET_API_ERROR_INVALID_VALUE;
1163 prefix_group_index =
1164 prefix_group_find_or_create (prefix_group, !old_enabled);
1166 && prefix_group_index != client_state->prefix_group_index)
1167 return VNET_API_ERROR_INVALID_VALUE;
1170 if (!old_enabled && enable)
1172 client_state->enabled = 1;
1173 client_state->prefix_group_index = prefix_group_index;
1174 ASSERT (client_state->prefix_group_index != ~0);
1175 client_state->server_index = ~0;
1178 if (rm->n_clients == 1)
1181 dhcp6_clients_enable_disable (1);
1184 ip6_enable (sw_if_index);
1185 send_client_message_start_stop (sw_if_index, ~0, DHCPV6_MSG_SOLICIT,
1188 else if (old_enabled && !enable)
1190 send_client_message_start_stop (sw_if_index, ~0, ~0, 0, 0);
1193 if (rm->n_clients == 0)
1195 dhcp6_clients_enable_disable (0);
1199 vec_validate (prefix_list, 0);
1202 pool_foreach (prefix_info, pm->prefix_pool,
1204 if (is_dhcpv6_pd_prefix (prefix_info) &&
1205 prefix_info->opaque_data == sw_if_index)
1207 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
1208 rm->client_state_by_sw_if_index[sw_if_index].enabled);
1209 client_state_t *client_state =
1210 &rm->client_state_by_sw_if_index[sw_if_index];
1211 prefix_list[0] = *prefix_info;
1212 send_client_message_start_stop (sw_if_index,
1213 client_state->server_index,
1214 DHCPV6_MSG_RELEASE, prefix_list,
1216 u32 prefix_index = prefix_info - pm->prefix_pool;
1217 notify_prefix_add_del (prefix_index, 0);
1218 set_is_dhcpv6_pd_prefix (prefix_info, 0);
1219 pool_put (pm->prefix_pool, prefix_info);
1224 vec_free (prefix_list);
1226 clib_memset (client_state, 0, sizeof (*client_state));
1232 static clib_error_t *
1233 dhcp6_pd_client_enable_disable_command_fn (vlib_main_t *
1236 * input, vlib_cli_command_t * cmd)
1238 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1239 vnet_main_t *vnm = rm->vnet_main;
1240 clib_error_t *error = 0;
1241 u8 *prefix_group = 0;
1242 u32 sw_if_index = ~0;
1244 unformat_input_t _line_input, *line_input = &_line_input;
1246 if (!unformat_user (input, unformat_line_input, line_input))
1249 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1252 (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
1254 else if (unformat (line_input, "prefix group %s", &prefix_group));
1255 else if (unformat (line_input, "disable"))
1259 error = clib_error_return (0, "unexpected input `%U'",
1260 format_unformat_error, line_input);
1265 if (prefix_group == 0 && enable)
1266 error = clib_error_return (0, "Prefix group must be set when enabling");
1267 else if (sw_if_index != ~0)
1269 if (dhcp6_pd_client_enable_disable (sw_if_index, prefix_group, enable)
1271 error = clib_error_return (0, "Invalid sw_if_index or prefix group");
1274 error = clib_error_return (0, "Missing sw_if_index");
1277 vec_free (prefix_group);
1278 unformat_free (line_input);
1284 * This command is used to enable/disable DHCPv6 PD client
1285 * on particular interface.
1289 * Example of how to enable DHCPv6 PD client:
1290 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 prefix group my-pd-group}
1291 * Example of how to disable DHCPv6 PD client:
1292 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 disable}
1296 VLIB_CLI_COMMAND (dhcp6_pd_client_enable_disable_command, static) = {
1297 .path = "dhcp6 pd client",
1298 .short_help = "dhcp6 pd client <interface> (prefix group <string> | disable)",
1299 .function = dhcp6_pd_client_enable_disable_command_fn,
1303 static clib_error_t *
1304 dhcp_pd_client_cp_init (vlib_main_t * vm)
1306 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1309 rm->vnet_main = vnet_get_main ();
1310 rm->api_main = &api_main;
1311 rm->node_index = dhcp6_pd_client_cp_process_node.index;
1316 VLIB_INIT_FUNCTION (dhcp_pd_client_cp_init);
1319 * fd.io coding-style-patch-verification: ON
1322 * eval: (c-set-style "gnu")