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>
22 #include <vnet/ip/ip6_link.h>
23 #include <vnet/ip6-nd/ip6_ra.h>
27 #include <vnet/ip/ip_types_api.h>
31 u32 prefix_group_index;
32 uword opaque_data; // used by prefix publisher
43 u32 prefix_group_index;
55 client_state_t *client_state_by_sw_if_index;
56 clib_bitmap_t *prefix_ownership_bitmap;
58 f64 max_valid_due_time;
61 vlib_main_t *vlib_main;
62 vnet_main_t *vnet_main;
65 } dhcp6_pd_client_cp_main_t;
67 static dhcp6_pd_client_cp_main_t dhcp6_pd_client_cp_main;
71 prefix_info_t *prefix_pool;
72 const u8 **prefix_group_name_by_index;
73 /* vector of active prefix pool indicies, prep-H for pool_foreach(..) */
77 static ip6_prefix_main_t ip6_prefix_main;
83 u32 prefix_group_index;
84 ip6_address_t address;
88 u8 configured_in_data_plane;
93 ip6_address_info_t *addresses;
94 u32 *active_prefix_index_by_prefix_group_index;
95 } ip6_address_with_prefix_main_t;
97 static ip6_address_with_prefix_main_t ip6_address_with_prefix_main;
101 DHCPV6_PD_EVENT_INTERRUPT,
102 DHCPV6_PD_EVENT_DISABLE,
105 static_always_inline u32
106 active_prefix_index_by_prefix_group_index_get (u32 prefix_group_index)
108 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
110 if (prefix_group_index >=
111 vec_len (apm->active_prefix_index_by_prefix_group_index))
114 return apm->active_prefix_index_by_prefix_group_index[prefix_group_index];
117 static_always_inline void
118 active_prefix_index_by_prefix_group_index_set (u32 prefix_group_index,
121 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
122 static const u32 empty = ~0;
124 ASSERT (prefix_group_index != ~0);
126 if (prefix_index == ~0
127 && prefix_group_index >=
128 vec_len (apm->active_prefix_index_by_prefix_group_index))
131 vec_validate_init_empty (apm->active_prefix_index_by_prefix_group_index,
132 prefix_group_index, empty);
133 apm->active_prefix_index_by_prefix_group_index[prefix_group_index] =
137 static_always_inline u8
138 is_dhcpv6_pd_prefix (prefix_info_t * prefix_info)
140 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
141 ip6_prefix_main_t *pm = &ip6_prefix_main;
144 prefix_index = prefix_info - pm->prefix_pool;
145 return clib_bitmap_get (rm->prefix_ownership_bitmap, prefix_index);
148 static_always_inline void
149 set_is_dhcpv6_pd_prefix (prefix_info_t * prefix_info, u8 value)
151 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
152 ip6_prefix_main_t *pm = &ip6_prefix_main;
155 prefix_index = prefix_info - pm->prefix_pool;
156 rm->prefix_ownership_bitmap =
157 clib_bitmap_set (rm->prefix_ownership_bitmap, prefix_index, value);
161 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add);
164 notify_prefix_add_del (u32 prefix_index, u8 is_add)
166 // TODO: use registries
167 cp_ip6_address_prefix_add_del_handler (prefix_index, is_add);
171 send_client_message_start_stop (u32 sw_if_index, u32 server_index,
172 u8 msg_type, prefix_info_t * prefix_list,
175 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
176 dhcp6_pd_send_client_message_params_t params = { 0, };
177 dhcp6_pd_send_client_message_params_prefix_t *prefixes = 0, *pref;
180 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
181 rm->client_state_by_sw_if_index[sw_if_index].enabled);
182 client_state_t *client_state =
183 &rm->client_state_by_sw_if_index[sw_if_index];
185 params.sw_if_index = sw_if_index;
186 params.server_index = server_index;
187 params.msg_type = msg_type;
190 if (msg_type == DHCPV6_MSG_SOLICIT)
195 else if (msg_type == DHCPV6_MSG_REQUEST)
201 else if (msg_type == DHCPV6_MSG_RENEW)
205 f64 current_time = vlib_time_now (rm->vlib_main);
206 i32 diff_time = client_state->T2 - current_time;
209 params.mrd = diff_time;
211 else if (msg_type == DHCPV6_MSG_REBIND)
215 f64 current_time = vlib_time_now (rm->vlib_main);
216 i32 diff_time = rm->max_valid_due_time - current_time;
219 params.mrd = diff_time;
221 else if (msg_type == DHCPV6_MSG_RELEASE)
229 if (vec_len (prefix_list) != 0)
230 vec_validate (prefixes, vec_len (prefix_list) - 1);
231 for (i = 0; i < vec_len (prefix_list); i++)
233 prefix_info_t *prefix = &prefix_list[i];
235 pref->valid_lt = prefix->valid_lt;
236 pref->preferred_lt = prefix->preferred_lt;
237 pref->prefix = prefix->prefix;
238 pref->prefix_length = prefix->prefix_length;
240 params.prefixes = prefixes;
242 dhcp6_pd_send_client_message (rm->vlib_main, sw_if_index, !start, ¶ms);
244 vec_free (params.prefixes);
247 static void interrupt_process (void);
250 ip6_prefixes_equal (ip6_address_t * prefix1, ip6_address_t * prefix2, u8 len)
254 if (prefix1->as_u64[0] != prefix2->as_u64[0])
258 return clib_net_to_host_u64 (prefix1->as_u64[1]) >> (128 - len) ==
259 clib_net_to_host_u64 (prefix2->as_u64[1]) >> (128 - len);
261 return clib_net_to_host_u64 (prefix1->as_u64[0]) >> (64 - len) ==
262 clib_net_to_host_u64 (prefix2->as_u64[0]) >> (64 - len);
265 static clib_error_t *
266 dhcp6_pd_reply_event_handler (vl_api_dhcp6_pd_reply_event_t * mp)
268 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
269 ip6_prefix_main_t *pm = &ip6_prefix_main;
270 vlib_main_t *vm = rm->vlib_main;
271 client_state_t *client_state;
272 ip6_address_t *prefix;
275 vl_api_dhcp6_pd_prefix_info_t *api_prefix;
276 u32 inner_status_code;
280 clib_error_t *error = 0;
282 prefix_info_t *prefix_info;
284 current_time = vlib_time_now (vm);
286 sw_if_index = ntohl (mp->sw_if_index);
288 if (sw_if_index >= vec_len (rm->client_state_by_sw_if_index))
291 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
293 if (!client_state->enabled)
296 server_index = ntohl (mp->server_index);
298 n_prefixes = ntohl (mp->n_prefixes);
300 inner_status_code = ntohs (mp->inner_status_code);
301 status_code = ntohs (mp->status_code);
303 if (mp->msg_type == DHCPV6_MSG_API_ADVERTISE
304 && client_state->server_index == ~0)
306 prefix_info_t *prefix_list = 0, *prefix_info;
309 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
312 ("Advertise message arrived with NoPrefixAvail status code");
317 vec_validate (prefix_list, n_prefixes - 1);
318 for (i = 0; i < n_prefixes; i++)
320 api_prefix = &mp->prefixes[i];
321 prefix = (ip6_address_t *) api_prefix->prefix.address;
322 prefix_length = api_prefix->prefix.len;
324 prefix_info = &prefix_list[i];
325 prefix_info->prefix = *prefix;
326 prefix_info->prefix_length = prefix_length;
327 prefix_info->preferred_lt = 0;
328 prefix_info->valid_lt = 0;
331 client_state->server_index = server_index;
333 send_client_message_start_stop (sw_if_index, server_index,
334 DHCPV6_MSG_REQUEST, prefix_list, 1);
335 vec_free (prefix_list);
338 if (mp->msg_type != DHCPV6_MSG_API_REPLY)
341 if (!client_state->rebinding && client_state->server_index != server_index)
343 clib_warning ("Reply message arrived with Server ID different "
344 "from that in Request or Renew message");
348 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
350 clib_warning ("Reply message arrived with NoPrefixAvail status code");
354 ("Invalid Reply message arrived: It contains NoPrefixAvail "
355 "status code but also contains prefixes");
360 if (status_code == DHCPV6_STATUS_UNSPEC_FAIL)
362 clib_warning ("Reply message arrived with UnspecFail status code");
366 send_client_message_start_stop (sw_if_index, server_index,
369 vec_reset_length (pm->indices);
371 * We're going to loop through the pool multiple times,
372 * so collect active indices.
375 pool_foreach (prefix_info, pm->prefix_pool,
377 vec_add1 (pm->indices, prefix_info - pm->prefix_pool);
381 for (i = 0; i < n_prefixes; i++)
389 api_prefix = &mp->prefixes[i];
391 prefix = (ip6_address_t *) api_prefix->prefix.address;
392 prefix_length = api_prefix->prefix.len;
394 if (ip6_address_is_link_local_unicast (prefix))
397 valid_time = ntohl (api_prefix->valid_time);
398 preferred_time = ntohl (api_prefix->preferred_time);
399 prefix_length = api_prefix->prefix.len;
401 if (preferred_time > valid_time)
404 u8 address_prefix_present = 0;
406 /* Look for a matching prefix_info */
407 for (j = 0; j < vec_len (pm->indices); j++)
409 prefix_info = pool_elt_at_index (pm->prefix_pool, pm->indices[j]);
411 if (is_dhcpv6_pd_prefix (prefix_info) &&
412 prefix_info->opaque_data == sw_if_index &&
413 prefix_info->prefix_length == prefix_length &&
414 ip6_prefixes_equal (&prefix_info->prefix, prefix,
417 address_prefix_present = 1;
422 if (address_prefix_present)
424 /* Found the (primary) prefix, update prefix timers */
425 prefix_info->preferred_lt = preferred_time;
426 prefix_info->valid_lt = valid_time;
427 prefix_info->due_time = current_time + valid_time;
428 if (prefix_info->due_time > rm->max_valid_due_time)
429 rm->max_valid_due_time = prefix_info->due_time;
432 * Tell the RA code to update any secondary per-interface
433 * timers that it might be hoarding.
435 ip6_ra_update_secondary_radv_info
436 (prefix, prefix_length,
437 prefix_info->opaque_data /* sw_if_index */ ,
438 valid_time, preferred_time);
445 pool_get (pm->prefix_pool, prefix_info);
446 vec_add1 (pm->indices, prefix_info - pm->prefix_pool);
447 prefix_info->prefix_group_index = client_state->prefix_group_index;
448 set_is_dhcpv6_pd_prefix (prefix_info, 1);
449 prefix_info->opaque_data = sw_if_index;
450 prefix_info->prefix_length = prefix_length;
451 prefix_info->prefix = *prefix;
452 prefix_info->preferred_lt = preferred_time;
453 prefix_info->valid_lt = valid_time;
454 prefix_info->due_time = current_time + valid_time;
455 if (prefix_info->due_time > rm->max_valid_due_time)
456 rm->max_valid_due_time = prefix_info->due_time;
457 rm->client_state_by_sw_if_index[sw_if_index].prefix_count++;
459 u32 prefix_index = prefix_info - pm->prefix_pool;
460 notify_prefix_add_del (prefix_index, 1);
463 client_state->server_index = server_index;
464 client_state->T1 = ntohl (mp->T1);
465 client_state->T2 = ntohl (mp->T2);
466 if (client_state->T1 != 0)
467 client_state->T1_due_time = current_time + client_state->T1;
468 if (client_state->T2 != 0)
469 client_state->T2_due_time = current_time + client_state->T2;
470 client_state->rebinding = 0;
472 interrupt_process ();
477 static prefix_info_t *
478 create_prefix_list (u32 sw_if_index)
480 ip6_prefix_main_t *pm = &ip6_prefix_main;
481 prefix_info_t *prefix_info, *prefix_list = 0;;
484 pool_foreach (prefix_info, pm->prefix_pool,
486 if (is_dhcpv6_pd_prefix (prefix_info) &&
487 prefix_info->opaque_data == sw_if_index)
489 u32 pos = vec_len (prefix_list);
490 vec_validate (prefix_list, pos);
491 clib_memcpy (&prefix_list[pos], prefix_info, sizeof (*prefix_info));
499 VNET_DHCP6_PD_REPLY_EVENT_FUNCTION (dhcp6_pd_reply_event_handler);
502 dhcp6_pd_client_cp_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
505 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
506 ip6_prefix_main_t *pm = &ip6_prefix_main;
507 prefix_info_t *prefix_info;
508 client_state_t *client_state;
509 f64 sleep_time = 1e9;
513 uword *event_data = 0;
518 vlib_process_wait_for_event_or_clock (vm, sleep_time);
519 event_type = vlib_process_get_events (vm, &event_data);
520 vec_reset_length (event_data);
522 if (event_type == DHCPV6_PD_EVENT_DISABLE)
524 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_DISABLED);
529 current_time = vlib_time_now (vm);
532 due_time = current_time + 1e9;
534 pool_foreach (prefix_info, pm->prefix_pool,
536 if (is_dhcpv6_pd_prefix (prefix_info))
538 if (prefix_info->due_time > current_time)
540 if (prefix_info->due_time < due_time)
541 due_time = prefix_info->due_time;
545 u32 prefix_index = prefix_info - pm->prefix_pool;
546 notify_prefix_add_del (prefix_index, 0);
547 u32 sw_if_index = prefix_info->opaque_data;
548 set_is_dhcpv6_pd_prefix (prefix_info, 0);
549 pool_put (pm->prefix_pool, prefix_info);
550 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
551 if (--client_state->prefix_count == 0)
553 client_state->rebinding = 0;
554 client_state->server_index = ~0;
555 send_client_message_start_stop (sw_if_index, ~0,
563 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
565 client_state_t *cs = &rm->client_state_by_sw_if_index[i];
566 if (cs->enabled && cs->server_index != ~0)
568 if (cs->T2_due_time > current_time)
570 if (cs->T2_due_time < due_time)
571 due_time = cs->T2_due_time;
572 if (cs->T1_due_time > current_time)
574 if (cs->T1_due_time < due_time)
575 due_time = cs->T1_due_time;
579 cs->T1_due_time = DBL_MAX;
580 prefix_info_t *prefix_list;
581 prefix_list = create_prefix_list (i);
582 send_client_message_start_stop (i, cs->server_index,
585 vec_free (prefix_list);
590 cs->T2_due_time = DBL_MAX;
591 prefix_info_t *prefix_list;
592 prefix_list = create_prefix_list (i);
594 send_client_message_start_stop (i, ~0,
597 vec_free (prefix_list);
601 current_time = vlib_time_now (vm);
603 while (due_time < current_time);
605 sleep_time = due_time - current_time;
612 VLIB_REGISTER_NODE (dhcp6_pd_client_cp_process_node) = {
613 .function = dhcp6_pd_client_cp_process,
614 .type = VLIB_NODE_TYPE_PROCESS,
615 .name = "dhcp6-pd-client-cp-process",
620 interrupt_process (void)
622 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
623 vlib_main_t *vm = rm->vlib_main;
625 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
626 DHCPV6_PD_EVENT_INTERRUPT, 0);
630 disable_process (void)
632 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
633 vlib_main_t *vm = rm->vlib_main;
635 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
636 DHCPV6_PD_EVENT_DISABLE, 0);
640 enable_process (void)
642 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
643 vlib_main_t *vm = rm->vlib_main;
646 node = vec_elt (vm->node_main.nodes, rm->node_index);
648 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_POLLING);
649 vlib_start_process (vm, node->runtime_index);
653 cp_ip6_construct_address (ip6_address_info_t * address_info, u32 prefix_index,
654 ip6_address_t * r_addr)
656 ip6_prefix_main_t *pm = &ip6_prefix_main;
657 prefix_info_t *prefix;
658 u64 mask, addr0, pref;
660 addr0 = clib_net_to_host_u64 (address_info->address.as_u64[0]);
661 prefix = &pm->prefix_pool[prefix_index];
662 if (prefix->prefix_length > 64)
664 clib_warning ("Prefix length is bigger that 64 bits");
667 mask = ((u64) 1 << (64 - prefix->prefix_length)) - 1;
669 pref = clib_host_to_net_u64 (prefix->prefix.as_u64[0]);
672 r_addr->as_u64[0] = clib_host_to_net_u64 (addr0);
673 r_addr->as_u64[1] = address_info->address.as_u64[1];
679 cp_ip6_address_add_del_now (ip6_address_info_t * address_info, u8 is_add)
681 vlib_main_t *vm = vlib_get_main ();
686 if (address_info->prefix_group_index != ~0)
688 active_prefix_index_by_prefix_group_index_get
689 (address_info->prefix_group_index);
693 if (is_add && !address_info->configured_in_data_plane)
695 if (prefix_index != ~0)
697 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
701 ip6_add_del_interface_address (vm, address_info->sw_if_index,
702 &addr, address_info->prefix_length,
705 clib_warning ("Failed adding IPv6 address: %U",
706 format_clib_error, error);
710 clib_warning ("Add address %U on %U",
711 format_ip6_address_and_length,
712 &addr, address_info->prefix_length,
713 format_vnet_sw_if_index_name,
714 vnet_get_main (), address_info->sw_if_index);
716 address_info->configured_in_data_plane = 1;
721 if (address_info->prefix_group_index == ~0)
724 ip6_add_del_interface_address (vm, address_info->sw_if_index,
725 &address_info->address,
726 address_info->prefix_length,
729 clib_warning ("Failed adding IPv6 address: %U",
730 format_clib_error, error);
734 clib_warning ("Add address %U on %U",
735 format_ip6_address_and_length,
736 &addr, address_info->prefix_length,
737 format_vnet_sw_if_index_name,
739 address_info->sw_if_index);
741 address_info->configured_in_data_plane = 1;
746 else if (!is_add && address_info->configured_in_data_plane)
748 if (prefix_index == ~0)
750 if (address_info->prefix_group_index == ~0)
753 ip6_add_del_interface_address (vm, address_info->sw_if_index,
754 &address_info->address,
755 address_info->prefix_length,
758 clib_warning ("Failed deleting IPv6 address: %U",
759 format_clib_error, error);
760 address_info->configured_in_data_plane = 0;
763 clib_warning ("Deleting address with prefix "
764 "but active prefix index is not set");
768 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
772 ip6_add_del_interface_address (vm, address_info->sw_if_index,
773 &addr, address_info->prefix_length,
776 clib_warning ("Failed deleting IPv6 address: %U",
777 format_clib_error, error);
778 address_info->configured_in_data_plane = 0;
784 cp_ip6_address_find_new_active_prefix (u32 prefix_group_index,
785 u32 ignore_prefix_index)
787 ip6_prefix_main_t *pm = &ip6_prefix_main;
788 prefix_info_t *prefix_info;
791 pool_foreach (prefix_info, pm->prefix_pool,
793 if (prefix_info->prefix_group_index == prefix_group_index &&
794 prefix_info - pm->prefix_pool != ignore_prefix_index)
795 return prefix_info - pm->prefix_pool;
802 cp_ip6_advertise_prefix (prefix_info_t * prefix_info,
803 ip6_address_info_t * address_info, int enable)
805 vlib_main_t *vm = vlib_get_main ();
806 ip6_main_t *im = &ip6_main;
812 active_prefix_index_by_prefix_group_index_get
813 (address_info->prefix_group_index);
815 if (cp_ip6_construct_address (address_info, prefix_index, &addr) != 0)
817 clib_warning ("address construction FAIL");
821 /* The RA code assumes that host bits are zero, so clear them */
822 addr.as_u64[0] &= im->fib_masks[address_info->prefix_length].as_u64[0];
823 addr.as_u64[1] &= im->fib_masks[address_info->prefix_length].as_u64[1];
825 rv = ip6_ra_prefix (vm, address_info->sw_if_index,
826 &addr, address_info->prefix_length,
827 0 /* use_default */ ,
828 prefix_info->valid_lt,
829 prefix_info->preferred_lt, 0 /* no_advertise */ ,
831 0 /* no_autoconfig */ ,
833 enable == 0 /* is_no */ );
836 clib_warning ("ip6_neighbor_ra_prefix returned %d", rv);
841 clib_warning ("Advertise prefix %U valid lt %u preferred lt %u",
842 format_ip6_address_and_length, &addr,
843 address_info->prefix_length, prefix_info->valid_lt,
844 prefix_info->preferred_lt);
849 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add)
851 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
852 ip6_prefix_main_t *pm = &ip6_prefix_main;
853 ip6_address_info_t *address_info;
854 prefix_info_t *prefix;
855 u32 new_prefix_index;
856 u32 prefix_group_index;
859 prefix = &pm->prefix_pool[prefix_index];
860 prefix_group_index = prefix->prefix_group_index;
864 if (active_prefix_index_by_prefix_group_index_get
865 (prefix_group_index) == ~0)
867 active_prefix_index_by_prefix_group_index_set
868 (prefix_group_index, prefix_index);
869 for (i = 0; i < vec_len (apm->addresses); i++)
871 address_info = &apm->addresses[i];
872 if (address_info->prefix_group_index == prefix_group_index)
874 /* Add the prefix to the interface */
875 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
876 /* And advertise the prefix on the interface */
877 cp_ip6_advertise_prefix (prefix, address_info,
885 if (active_prefix_index_by_prefix_group_index_get
886 (prefix_group_index) == prefix_index)
888 for (i = 0; i < vec_len (apm->addresses); i++)
890 address_info = &apm->addresses[i];
891 if (address_info->prefix_group_index == prefix_group_index)
893 cp_ip6_advertise_prefix (prefix, address_info,
895 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
898 active_prefix_index_by_prefix_group_index_set
899 (prefix_group_index, ~0);
901 cp_ip6_address_find_new_active_prefix (prefix_group_index,
903 if (new_prefix_index != ~0)
905 active_prefix_index_by_prefix_group_index_set
906 (prefix_group_index, new_prefix_index);
907 for (i = 0; i < vec_len (apm->addresses); i++)
909 address_info = &apm->addresses[i];
910 if (address_info->prefix_group_index == prefix_group_index)
912 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
913 cp_ip6_advertise_prefix (prefix, address_info,
923 prefix_group_find_or_create (const u8 * name, u8 create)
925 ip6_prefix_main_t *pm = &ip6_prefix_main;
930 for (i = 0; i < vec_len (pm->prefix_group_name_by_index); i++)
932 if (pm->prefix_group_name_by_index[i] == 0)
935 strcmp ((const char *) pm->prefix_group_name_by_index[i],
936 (const char *) name))
941 name_dup = (u8 *) strdup ((const char *) name);
942 if (free_index != ~0)
944 pm->prefix_group_name_by_index[free_index] = name_dup;
949 vec_add1 (pm->prefix_group_name_by_index, name_dup);
950 return vec_len (pm->prefix_group_name_by_index) - 1;
955 dhcp6_cp_ip6_address_add_del (u32 sw_if_index, const u8 * prefix_group,
956 ip6_address_t address, u8 prefix_length,
960 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
961 vnet_main_t *vnm = vnet_get_main ();
962 ip6_address_info_t *address_info;
963 u32 prefix_group_index;
966 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
968 clib_warning ("Invalid sw_if_index");
969 return VNET_API_ERROR_INVALID_VALUE;
972 if (prefix_group != 0 && prefix_group[0] != '\0')
974 if (strnlen ((const char *) prefix_group, 64) == 64)
975 return VNET_API_ERROR_INVALID_VALUE;
977 prefix_group_index = prefix_group_find_or_create (prefix_group, 1);
980 prefix_group_index = ~0;
982 n = vec_len (apm->addresses);
984 vec_foreach (address_info, apm->addresses)
986 if (address_info->sw_if_index == sw_if_index &&
987 address_info->prefix_group_index == prefix_group_index &&
988 address_info->prefix_length == prefix_length &&
989 0 == memcmp (&address_info->address, &address, 16))
992 return VNET_API_ERROR_DUPLICATE_IF_ADDRESS;
993 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
994 *address_info = apm->addresses[n - 1];
995 _vec_len (apm->addresses) = n - 1;
1001 return VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
1003 vec_validate (apm->addresses, n);
1004 address_info = &apm->addresses[n];
1005 address_info->sw_if_index = sw_if_index;
1006 address_info->prefix_group_index = prefix_group_index;
1007 address_info->address = address;
1008 address_info->prefix_length = prefix_length;
1009 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
1014 static clib_error_t *
1015 cp_ip6_address_add_del_command_function (vlib_main_t * vm,
1016 unformat_input_t * input,
1017 vlib_cli_command_t * cmd)
1019 vnet_main_t *vnm = vnet_get_main ();
1020 clib_error_t *error = 0;
1021 u32 sw_if_index = ~0;
1022 u8 *prefix_group = 0;
1023 ip6_address_t address;
1027 unformat_input_t _line_input, *line_input = &_line_input;
1029 if (!unformat_user (input, unformat_line_input, line_input))
1032 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1035 (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index));
1036 else if (unformat (line_input, "prefix group %s", &prefix_group));
1038 if (unformat (line_input, "%U/%d", unformat_ip6_address,
1039 &address, &prefix_length))
1041 else if (unformat (line_input, "del"))
1045 error = clib_error_return (0, "unexpected input `%U'",
1046 format_unformat_error, line_input);
1047 unformat_free (line_input);
1052 unformat_free (line_input);
1054 if (sw_if_index == ~0)
1055 error = clib_error_return (0, "Missing sw_if_index");
1056 else if (address_set == 0)
1057 error = clib_error_return (0, "Missing address");
1060 if (dhcp6_cp_ip6_address_add_del
1061 (sw_if_index, prefix_group, address, prefix_length, add) != 0)
1062 error = clib_error_return (0, "Error adding or removing address");
1070 * This command is used to add/delete IPv6 address
1071 * potentially using available prefix from specified prefix group
1075 * Example of how to add IPv6 address:
1076 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
1077 * prefix group my-prefix-group ::7/64}
1078 * Example of how to delete IPv6 address:
1079 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
1080 * prefix group my-prefix-group ::7/64 del}
1084 VLIB_CLI_COMMAND (ip6_address_add_del_command, static) = {
1085 .path = "set ip6 address",
1086 .short_help = "set ip6 address <interface> [prefix group <string>] "
1088 .function = cp_ip6_address_add_del_command_function,
1092 static clib_error_t *
1093 cp_ip6_addresses_show_command_function (vlib_main_t * vm,
1094 unformat_input_t * input,
1095 vlib_cli_command_t * cmd)
1097 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
1098 ip6_prefix_main_t *pm = &ip6_prefix_main;
1099 ip6_address_info_t *address_info;
1100 const u8 *prefix_group;
1101 clib_error_t *error = 0;
1104 for (i = 0; i < vec_len (apm->addresses); i++)
1106 address_info = &apm->addresses[i];
1107 if (address_info->prefix_group_index == ~0)
1108 prefix_group = (const u8 *) "NONE";
1111 pm->prefix_group_name_by_index[address_info->prefix_group_index];
1112 vlib_cli_output (vm,
1113 "sw_if_index: %u, prefix_group: %s, address: %U/%d",
1114 address_info->sw_if_index, prefix_group,
1115 format_ip6_address, &address_info->address,
1116 address_info->prefix_length);
1123 VLIB_CLI_COMMAND (ip6_addresses_show_command, static) = {
1124 .path = "show ip6 addresses",
1125 .short_help = "show ip6 addresses",
1126 .function = cp_ip6_addresses_show_command_function,
1130 static clib_error_t *
1131 cp_ip6_prefixes_show_command_function (vlib_main_t * vm,
1132 unformat_input_t * input,
1133 vlib_cli_command_t * cmd)
1135 ip6_prefix_main_t *pm = &ip6_prefix_main;
1136 clib_error_t *error = 0;
1137 prefix_info_t *prefix_info;
1138 const u8 *prefix_group;
1139 f64 current_time = vlib_time_now (vm);
1142 pool_foreach (prefix_info, pm->prefix_pool,
1145 pm->prefix_group_name_by_index[prefix_info->prefix_group_index];
1146 vlib_cli_output (vm, "opaque_data: %lu, prefix: %U/%d, prefix group: %s, "
1147 "preferred lifetime: %u, valid lifetime: %u "
1149 prefix_info->opaque_data, format_ip6_address,
1150 &prefix_info->prefix, prefix_info->prefix_length,
1152 prefix_info->preferred_lt, prefix_info->valid_lt,
1153 prefix_info->due_time - current_time);
1161 VLIB_CLI_COMMAND (ip6_prefixes_show_command, static) = {
1162 .path = "show ip6 prefixes",
1163 .short_help = "show ip6 prefixes",
1164 .function = cp_ip6_prefixes_show_command_function,
1168 static clib_error_t *
1169 ip6_pd_clients_show_command_function (vlib_main_t * vm,
1170 unformat_input_t * input,
1171 vlib_cli_command_t * cmd)
1173 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1174 ip6_prefix_main_t *pm = &ip6_prefix_main;
1175 clib_error_t *error = 0;
1177 f64 current_time = vlib_time_now (vm);
1178 const u8 *prefix_group;
1181 const char *rebinding;
1184 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
1186 cs = &rm->client_state_by_sw_if_index[i];
1189 vec_reset_length (buf1);
1190 vec_reset_length (buf2);
1191 if (cs->T1_due_time != DBL_MAX && cs->T1_due_time > current_time)
1193 buf1 = format (buf1, "%u remaining",
1194 (u32) round (cs->T1_due_time - current_time));
1197 buf1 = format (buf1, "timeout");
1198 if (cs->T2_due_time != DBL_MAX && cs->T2_due_time > current_time)
1199 buf2 = format (buf2, "%u remaining",
1200 (u32) round (cs->T2_due_time - current_time));
1202 buf2 = format (buf2, "timeout");
1204 rebinding = ", REBINDING";
1208 pm->prefix_group_name_by_index[cs->prefix_group_index];
1210 vlib_cli_output (vm,
1211 "sw_if_index: %u, prefix group: %s, T1: %u (%v), "
1212 "T2: %u (%v), server index: %d%s", i,
1213 prefix_group, cs->T1, buf1, cs->T2, buf2,
1214 cs->server_index, rebinding);
1216 vlib_cli_output (vm, "sw_if_index: %u, prefix group: %s%s", i,
1217 prefix_group, rebinding);
1228 VLIB_CLI_COMMAND (ip6_pd_clients_show_command, static) = {
1229 .path = "show ip6 pd clients",
1230 .short_help = "show ip6 pd clients",
1231 .function = ip6_pd_clients_show_command_function,
1238 dhcp6_pd_client_enable_disable (u32 sw_if_index,
1239 const u8 * prefix_group, u8 enable)
1241 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1242 ip6_prefix_main_t *pm = &ip6_prefix_main;
1243 vnet_main_t *vnm = rm->vnet_main;
1244 client_state_t *client_state;
1245 static client_state_t empty_config = {
1248 prefix_info_t *prefix_info;
1249 prefix_info_t *prefix_list = 0;
1250 u32 prefix_group_index;
1252 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
1254 clib_warning ("Invalid sw_if_index");
1255 return VNET_API_ERROR_INVALID_VALUE;
1258 vec_validate_init_empty (rm->client_state_by_sw_if_index, sw_if_index,
1260 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
1262 u8 old_enabled = client_state->enabled;
1266 if (strnlen ((const char *) prefix_group, 64) == 64
1267 || prefix_group[0] == '\0')
1268 return VNET_API_ERROR_INVALID_VALUE;
1269 prefix_group_index =
1270 prefix_group_find_or_create (prefix_group, !old_enabled);
1272 && prefix_group_index != client_state->prefix_group_index)
1273 return VNET_API_ERROR_INVALID_VALUE;
1276 if (!old_enabled && enable)
1278 client_state->enabled = 1;
1279 client_state->prefix_group_index = prefix_group_index;
1280 ASSERT (client_state->prefix_group_index != ~0);
1281 client_state->server_index = ~0;
1284 if (rm->n_clients == 1)
1287 dhcp6_clients_enable_disable (1);
1290 ip6_link_enable (sw_if_index, NULL);
1291 send_client_message_start_stop (sw_if_index, ~0, DHCPV6_MSG_SOLICIT,
1294 else if (old_enabled && !enable)
1296 send_client_message_start_stop (sw_if_index, ~0, ~0, 0, 0);
1299 if (rm->n_clients == 0)
1301 dhcp6_clients_enable_disable (0);
1305 vec_validate (prefix_list, 0);
1308 pool_foreach (prefix_info, pm->prefix_pool,
1310 if (is_dhcpv6_pd_prefix (prefix_info) &&
1311 prefix_info->opaque_data == sw_if_index)
1313 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
1314 rm->client_state_by_sw_if_index[sw_if_index].enabled);
1315 client_state_t *client_state =
1316 &rm->client_state_by_sw_if_index[sw_if_index];
1317 prefix_list[0] = *prefix_info;
1318 send_client_message_start_stop (sw_if_index,
1319 client_state->server_index,
1320 DHCPV6_MSG_RELEASE, prefix_list,
1322 u32 prefix_index = prefix_info - pm->prefix_pool;
1323 notify_prefix_add_del (prefix_index, 0);
1324 set_is_dhcpv6_pd_prefix (prefix_info, 0);
1325 pool_put (pm->prefix_pool, prefix_info);
1330 vec_free (prefix_list);
1332 clib_memset (client_state, 0, sizeof (*client_state));
1338 static clib_error_t *
1339 dhcp6_pd_client_enable_disable_command_fn (vlib_main_t *
1342 * input, vlib_cli_command_t * cmd)
1344 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1345 vnet_main_t *vnm = rm->vnet_main;
1346 clib_error_t *error = 0;
1347 u8 *prefix_group = 0;
1348 u32 sw_if_index = ~0;
1350 unformat_input_t _line_input, *line_input = &_line_input;
1352 if (!unformat_user (input, unformat_line_input, line_input))
1355 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1358 (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
1360 else if (unformat (line_input, "prefix group %s", &prefix_group));
1361 else if (unformat (line_input, "disable"))
1365 error = clib_error_return (0, "unexpected input `%U'",
1366 format_unformat_error, line_input);
1371 if (prefix_group == 0 && enable)
1372 error = clib_error_return (0, "Prefix group must be set when enabling");
1373 else if (sw_if_index != ~0)
1375 if (dhcp6_pd_client_enable_disable (sw_if_index, prefix_group, enable)
1377 error = clib_error_return (0, "Invalid sw_if_index or prefix group");
1380 error = clib_error_return (0, "Missing sw_if_index");
1383 vec_free (prefix_group);
1384 unformat_free (line_input);
1390 * This command is used to enable/disable DHCPv6 PD client
1391 * on particular interface.
1395 * Example of how to enable DHCPv6 PD client:
1396 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 prefix group my-pd-group}
1397 * Example of how to disable DHCPv6 PD client:
1398 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 disable}
1402 VLIB_CLI_COMMAND (dhcp6_pd_client_enable_disable_command, static) = {
1403 .path = "dhcp6 pd client",
1404 .short_help = "dhcp6 pd client <interface> (prefix group <string> | disable)",
1405 .function = dhcp6_pd_client_enable_disable_command_fn,
1409 #include <vlib/unix/plugin.h>
1411 static clib_error_t *
1412 dhcp_pd_client_cp_init (vlib_main_t * vm)
1414 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1417 rm->vnet_main = vnet_get_main ();
1418 rm->api_main = vlibapi_get_main ();
1419 rm->node_index = dhcp6_pd_client_cp_process_node.index;
1424 VLIB_INIT_FUNCTION (dhcp_pd_client_cp_init);
1427 * fd.io coding-style-patch-verification: ON
1430 * eval: (c-set-style "gnu")