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>
25 #include <vnet/ip/ip_types_api.h>
29 u32 prefix_group_index;
30 uword opaque_data; // used by prefix publisher
41 u32 prefix_group_index;
53 client_state_t *client_state_by_sw_if_index;
54 clib_bitmap_t *prefix_ownership_bitmap;
56 f64 max_valid_due_time;
59 vlib_main_t *vlib_main;
60 vnet_main_t *vnet_main;
63 } dhcp6_pd_client_cp_main_t;
65 static dhcp6_pd_client_cp_main_t dhcp6_pd_client_cp_main;
69 prefix_info_t *prefix_pool;
70 const u8 **prefix_group_name_by_index;
73 static ip6_prefix_main_t ip6_prefix_main;
79 u32 prefix_group_index;
80 ip6_address_t address;
84 u8 configured_in_data_plane;
89 ip6_address_info_t *addresses;
90 u32 *active_prefix_index_by_prefix_group_index;
91 } ip6_address_with_prefix_main_t;
93 static ip6_address_with_prefix_main_t ip6_address_with_prefix_main;
97 DHCPV6_PD_EVENT_INTERRUPT,
98 DHCPV6_PD_EVENT_DISABLE,
101 static_always_inline u32
102 active_prefix_index_by_prefix_group_index_get (u32 prefix_group_index)
104 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
106 if (prefix_group_index >=
107 vec_len (apm->active_prefix_index_by_prefix_group_index))
110 return apm->active_prefix_index_by_prefix_group_index[prefix_group_index];
113 static_always_inline void
114 active_prefix_index_by_prefix_group_index_set (u32 prefix_group_index,
117 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
118 static const u32 empty = ~0;
120 ASSERT (prefix_group_index != ~0);
122 if (prefix_index == ~0
123 && prefix_group_index >=
124 vec_len (apm->active_prefix_index_by_prefix_group_index))
127 vec_validate_init_empty (apm->active_prefix_index_by_prefix_group_index,
128 prefix_group_index, empty);
129 apm->active_prefix_index_by_prefix_group_index[prefix_group_index] =
133 static_always_inline u8
134 is_dhcpv6_pd_prefix (prefix_info_t * prefix_info)
136 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
137 ip6_prefix_main_t *pm = &ip6_prefix_main;
140 prefix_index = prefix_info - pm->prefix_pool;
141 return clib_bitmap_get (rm->prefix_ownership_bitmap, prefix_index);
144 static_always_inline void
145 set_is_dhcpv6_pd_prefix (prefix_info_t * prefix_info, u8 value)
147 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
148 ip6_prefix_main_t *pm = &ip6_prefix_main;
151 prefix_index = prefix_info - pm->prefix_pool;
152 rm->prefix_ownership_bitmap =
153 clib_bitmap_set (rm->prefix_ownership_bitmap, prefix_index, value);
157 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add);
160 notify_prefix_add_del (u32 prefix_index, u8 is_add)
162 // TODO: use registries
163 cp_ip6_address_prefix_add_del_handler (prefix_index, is_add);
167 send_client_message_start_stop (u32 sw_if_index, u32 server_index,
168 u8 msg_type, prefix_info_t * prefix_list,
171 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
172 dhcp6_pd_send_client_message_params_t params = { 0, };
173 dhcp6_pd_send_client_message_params_prefix_t *prefixes = 0, *pref;
176 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
177 rm->client_state_by_sw_if_index[sw_if_index].enabled);
178 client_state_t *client_state =
179 &rm->client_state_by_sw_if_index[sw_if_index];
181 params.sw_if_index = sw_if_index;
182 params.server_index = server_index;
183 params.msg_type = msg_type;
186 if (msg_type == DHCPV6_MSG_SOLICIT)
191 else if (msg_type == DHCPV6_MSG_REQUEST)
197 else if (msg_type == DHCPV6_MSG_RENEW)
201 f64 current_time = vlib_time_now (rm->vlib_main);
202 i32 diff_time = client_state->T2 - current_time;
205 params.mrd = diff_time;
207 else if (msg_type == DHCPV6_MSG_REBIND)
211 f64 current_time = vlib_time_now (rm->vlib_main);
212 i32 diff_time = rm->max_valid_due_time - current_time;
215 params.mrd = diff_time;
217 else if (msg_type == DHCPV6_MSG_RELEASE)
225 if (vec_len (prefix_list) != 0)
226 vec_validate (prefixes, vec_len (prefix_list) - 1);
227 for (i = 0; i < vec_len (prefix_list); i++)
229 prefix_info_t *prefix = &prefix_list[i];
231 pref->valid_lt = prefix->valid_lt;
232 pref->preferred_lt = prefix->preferred_lt;
233 pref->prefix = prefix->prefix;
234 pref->prefix_length = prefix->prefix_length;
236 params.prefixes = prefixes;
238 dhcp6_pd_send_client_message (rm->vlib_main, sw_if_index, !start, ¶ms);
240 vec_free (params.prefixes);
243 static void interrupt_process (void);
246 ip6_enable (u32 sw_if_index)
248 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
251 rv = enable_ip6_interface (rm->vlib_main, sw_if_index);
257 ip6_prefixes_equal (ip6_address_t * prefix1, ip6_address_t * prefix2, u8 len)
261 if (prefix1->as_u64[0] != prefix2->as_u64[0])
265 return clib_net_to_host_u64 (prefix1->as_u64[1]) >> (128 - len) ==
266 clib_net_to_host_u64 (prefix2->as_u64[1]) >> (128 - len);
268 return clib_net_to_host_u64 (prefix1->as_u64[0]) >> (64 - len) ==
269 clib_net_to_host_u64 (prefix2->as_u64[0]) >> (64 - len);
272 static clib_error_t *
273 dhcp6_pd_reply_event_handler (vl_api_dhcp6_pd_reply_event_t * mp)
275 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
276 ip6_prefix_main_t *pm = &ip6_prefix_main;
277 vlib_main_t *vm = rm->vlib_main;
278 client_state_t *client_state;
279 ip6_address_t *prefix;
282 vl_api_dhcp6_pd_prefix_info_t *api_prefix;
283 u32 inner_status_code;
287 clib_error_t *error = 0;
290 current_time = vlib_time_now (vm);
292 sw_if_index = ntohl (mp->sw_if_index);
294 if (sw_if_index >= vec_len (rm->client_state_by_sw_if_index))
297 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
299 if (!client_state->enabled)
302 server_index = ntohl (mp->server_index);
304 n_prefixes = ntohl (mp->n_prefixes);
306 inner_status_code = ntohs (mp->inner_status_code);
307 status_code = ntohs (mp->status_code);
309 if (mp->msg_type == DHCPV6_MSG_API_ADVERTISE
310 && client_state->server_index == ~0)
312 prefix_info_t *prefix_list = 0, *prefix_info;
315 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
318 ("Advertise message arrived with NoPrefixAvail status code");
323 vec_validate (prefix_list, n_prefixes - 1);
324 for (i = 0; i < n_prefixes; i++)
326 api_prefix = &mp->prefixes[i];
327 prefix = (ip6_address_t *) api_prefix->prefix.address;
328 prefix_length = api_prefix->prefix.len;
330 prefix_info = &prefix_list[i];
331 prefix_info->prefix = *prefix;
332 prefix_info->prefix_length = prefix_length;
333 prefix_info->preferred_lt = 0;
334 prefix_info->valid_lt = 0;
337 client_state->server_index = server_index;
339 send_client_message_start_stop (sw_if_index, server_index,
340 DHCPV6_MSG_REQUEST, prefix_list, 1);
341 vec_free (prefix_list);
344 if (mp->msg_type != DHCPV6_MSG_API_REPLY)
347 if (!client_state->rebinding && client_state->server_index != server_index)
349 clib_warning ("Reply message arrived with Server ID different "
350 "from that in Request or Renew message");
354 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
356 clib_warning ("Reply message arrived with NoPrefixAvail status code");
360 ("Invalid Reply message arrived: It contains NoPrefixAvail "
361 "status code but also contains prefixes");
366 if (status_code == DHCPV6_STATUS_UNSPEC_FAIL)
368 clib_warning ("Reply message arrived with UnspecFail status code");
372 send_client_message_start_stop (sw_if_index, server_index,
375 for (i = 0; i < n_prefixes; i++)
377 prefix_info_t *prefix_info = 0;
382 api_prefix = &mp->prefixes[i];
384 prefix = (ip6_address_t *) api_prefix->prefix.address;
385 prefix_length = api_prefix->prefix.len;
387 if (ip6_address_is_link_local_unicast (prefix))
390 valid_time = ntohl (api_prefix->valid_time);
391 preferred_time = ntohl (api_prefix->preferred_time);
392 prefix_length = api_prefix->prefix.len;
394 if (preferred_time > valid_time)
397 u8 address_prefix_present = 0;
399 pool_foreach (prefix_info, pm->prefix_pool,
401 if (is_dhcpv6_pd_prefix (prefix_info) &&
402 prefix_info->opaque_data == sw_if_index &&
403 prefix_info->prefix_length == prefix_length &&
404 ip6_prefixes_equal (&prefix_info->prefix, prefix, prefix_length))
406 address_prefix_present = 1;
407 goto prefix_pool_foreach_out;
411 prefix_pool_foreach_out:
413 if (address_prefix_present)
415 prefix_info->preferred_lt = preferred_time;
416 prefix_info->valid_lt = valid_time;
417 prefix_info->due_time = current_time + valid_time;
418 if (prefix_info->due_time > rm->max_valid_due_time)
419 rm->max_valid_due_time = prefix_info->due_time;
426 pool_get (pm->prefix_pool, prefix_info);
427 prefix_info->prefix_group_index = client_state->prefix_group_index;
428 set_is_dhcpv6_pd_prefix (prefix_info, 1);
429 prefix_info->opaque_data = sw_if_index;
430 prefix_info->prefix_length = prefix_length;
431 prefix_info->prefix = *prefix;
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;
437 rm->client_state_by_sw_if_index[sw_if_index].prefix_count++;
439 u32 prefix_index = prefix_info - pm->prefix_pool;
440 notify_prefix_add_del (prefix_index, 1);
443 client_state->server_index = server_index;
444 client_state->T1 = ntohl (mp->T1);
445 client_state->T2 = ntohl (mp->T2);
446 if (client_state->T1 != 0)
447 client_state->T1_due_time = current_time + client_state->T1;
448 if (client_state->T2 != 0)
449 client_state->T2_due_time = current_time + client_state->T2;
450 client_state->rebinding = 0;
452 interrupt_process ();
457 static prefix_info_t *
458 create_prefix_list (u32 sw_if_index)
460 ip6_prefix_main_t *pm = &ip6_prefix_main;
461 prefix_info_t *prefix_info, *prefix_list = 0;;
464 pool_foreach (prefix_info, pm->prefix_pool,
466 if (is_dhcpv6_pd_prefix (prefix_info) &&
467 prefix_info->opaque_data == sw_if_index)
469 u32 pos = vec_len (prefix_list);
470 vec_validate (prefix_list, pos);
471 clib_memcpy (&prefix_list[pos], prefix_info, sizeof (*prefix_info));
479 VNET_DHCP6_PD_REPLY_EVENT_FUNCTION (dhcp6_pd_reply_event_handler);
482 dhcp6_pd_client_cp_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
485 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
486 ip6_prefix_main_t *pm = &ip6_prefix_main;
487 prefix_info_t *prefix_info;
488 client_state_t *client_state;
489 f64 sleep_time = 1e9;
493 uword *event_data = 0;
498 vlib_process_wait_for_event_or_clock (vm, sleep_time);
499 event_type = vlib_process_get_events (vm, &event_data);
500 vec_reset_length (event_data);
502 if (event_type == DHCPV6_PD_EVENT_DISABLE)
504 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_DISABLED);
509 current_time = vlib_time_now (vm);
512 due_time = current_time + 1e9;
514 pool_foreach (prefix_info, pm->prefix_pool,
516 if (is_dhcpv6_pd_prefix (prefix_info))
518 if (prefix_info->due_time > current_time)
520 if (prefix_info->due_time < due_time)
521 due_time = prefix_info->due_time;
525 u32 prefix_index = prefix_info - pm->prefix_pool;
526 notify_prefix_add_del (prefix_index, 0);
527 u32 sw_if_index = prefix_info->opaque_data;
528 set_is_dhcpv6_pd_prefix (prefix_info, 0);
529 pool_put (pm->prefix_pool, prefix_info);
530 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
531 if (--client_state->prefix_count == 0)
533 client_state->rebinding = 0;
534 client_state->server_index = ~0;
535 send_client_message_start_stop (sw_if_index, ~0,
543 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
545 client_state_t *cs = &rm->client_state_by_sw_if_index[i];
546 if (cs->enabled && cs->server_index != ~0)
548 if (cs->T2_due_time > current_time)
550 if (cs->T2_due_time < due_time)
551 due_time = cs->T2_due_time;
552 if (cs->T1_due_time > current_time)
554 if (cs->T1_due_time < due_time)
555 due_time = cs->T1_due_time;
559 cs->T1_due_time = DBL_MAX;
560 prefix_info_t *prefix_list;
561 prefix_list = create_prefix_list (i);
562 send_client_message_start_stop (i, cs->server_index,
565 vec_free (prefix_list);
570 cs->T2_due_time = DBL_MAX;
571 prefix_info_t *prefix_list;
572 prefix_list = create_prefix_list (i);
574 send_client_message_start_stop (i, ~0,
577 vec_free (prefix_list);
581 current_time = vlib_time_now (vm);
583 while (due_time < current_time);
585 sleep_time = due_time - current_time;
592 VLIB_REGISTER_NODE (dhcp6_pd_client_cp_process_node) = {
593 .function = dhcp6_pd_client_cp_process,
594 .type = VLIB_NODE_TYPE_PROCESS,
595 .name = "dhcp6-pd-client-cp-process",
600 interrupt_process (void)
602 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
603 vlib_main_t *vm = rm->vlib_main;
605 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
606 DHCPV6_PD_EVENT_INTERRUPT, 0);
610 disable_process (void)
612 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
613 vlib_main_t *vm = rm->vlib_main;
615 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
616 DHCPV6_PD_EVENT_DISABLE, 0);
620 enable_process (void)
622 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
623 vlib_main_t *vm = rm->vlib_main;
626 node = vec_elt (vm->node_main.nodes, rm->node_index);
628 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_POLLING);
629 vlib_start_process (vm, node->runtime_index);
633 cp_ip6_construct_address (ip6_address_info_t * address_info, u32 prefix_index,
634 ip6_address_t * r_addr)
636 ip6_prefix_main_t *pm = &ip6_prefix_main;
637 prefix_info_t *prefix;
638 u64 mask, addr0, pref;
640 addr0 = clib_net_to_host_u64 (address_info->address.as_u64[0]);
641 prefix = &pm->prefix_pool[prefix_index];
642 if (prefix->prefix_length > 64)
644 clib_warning ("Prefix length is bigger that 64 bits");
647 mask = ((u64) 1 << (64 - prefix->prefix_length)) - 1;
649 pref = clib_host_to_net_u64 (prefix->prefix.as_u64[0]);
652 r_addr->as_u64[0] = clib_host_to_net_u64 (addr0);
653 r_addr->as_u64[1] = address_info->address.as_u64[1];
659 cp_ip6_address_add_del_now (ip6_address_info_t * address_info, u8 is_add)
661 vlib_main_t *vm = vlib_get_main ();
666 if (address_info->prefix_group_index != ~0)
668 active_prefix_index_by_prefix_group_index_get
669 (address_info->prefix_group_index);
673 if (is_add && !address_info->configured_in_data_plane)
675 if (prefix_index != ~0)
677 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
681 ip6_add_del_interface_address (vm, address_info->sw_if_index,
682 &addr, address_info->prefix_length,
685 clib_warning ("Failed adding IPv6 address: %U",
686 format_clib_error, error);
688 address_info->configured_in_data_plane = 1;
692 if (address_info->prefix_group_index == ~0)
695 ip6_add_del_interface_address (vm, address_info->sw_if_index,
696 &address_info->address,
697 address_info->prefix_length,
700 clib_warning ("Failed adding IPv6 address: %U",
701 format_clib_error, error);
703 address_info->configured_in_data_plane = 1;
707 else if (!is_add && address_info->configured_in_data_plane)
709 if (prefix_index == ~0)
711 if (address_info->prefix_group_index == ~0)
714 ip6_add_del_interface_address (vm, address_info->sw_if_index,
715 &address_info->address,
716 address_info->prefix_length,
719 clib_warning ("Failed deleting IPv6 address: %U",
720 format_clib_error, error);
721 address_info->configured_in_data_plane = 0;
724 clib_warning ("Deleting address with prefix "
725 "but active prefix index is not set");
729 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
733 ip6_add_del_interface_address (vm, address_info->sw_if_index,
734 &addr, address_info->prefix_length,
737 clib_warning ("Failed deleting IPv6 address: %U",
738 format_clib_error, error);
739 address_info->configured_in_data_plane = 0;
745 cp_ip6_address_find_new_active_prefix (u32 prefix_group_index,
746 u32 ignore_prefix_index)
748 ip6_prefix_main_t *pm = &ip6_prefix_main;
749 prefix_info_t *prefix_info;
752 pool_foreach (prefix_info, pm->prefix_pool,
754 if (prefix_info->prefix_group_index == prefix_group_index &&
755 prefix_info - pm->prefix_pool != ignore_prefix_index)
756 return prefix_info - pm->prefix_pool;
763 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add)
765 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
766 ip6_prefix_main_t *pm = &ip6_prefix_main;
767 ip6_address_info_t *address_info;
768 prefix_info_t *prefix;
769 u32 new_prefix_index;
770 u32 prefix_group_index;
773 prefix = &pm->prefix_pool[prefix_index];
774 prefix_group_index = prefix->prefix_group_index;
778 if (active_prefix_index_by_prefix_group_index_get
779 (prefix_group_index) == ~0)
781 active_prefix_index_by_prefix_group_index_set
782 (prefix_group_index, prefix_index);
783 for (i = 0; i < vec_len (apm->addresses); i++)
785 address_info = &apm->addresses[i];
786 if (address_info->prefix_group_index == prefix_group_index)
787 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
793 if (active_prefix_index_by_prefix_group_index_get
794 (prefix_group_index) == prefix_index)
796 for (i = 0; i < vec_len (apm->addresses); i++)
798 address_info = &apm->addresses[i];
799 if (address_info->prefix_group_index == prefix_group_index)
800 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
802 active_prefix_index_by_prefix_group_index_set
803 (prefix_group_index, ~0);
805 cp_ip6_address_find_new_active_prefix (prefix_group_index,
807 if (new_prefix_index != ~0)
809 active_prefix_index_by_prefix_group_index_set
810 (prefix_group_index, new_prefix_index);
811 for (i = 0; i < vec_len (apm->addresses); i++)
813 address_info = &apm->addresses[i];
814 if (address_info->prefix_group_index == prefix_group_index)
815 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
823 prefix_group_find_or_create (const u8 * name, u8 create)
825 ip6_prefix_main_t *pm = &ip6_prefix_main;
830 for (i = 0; i < vec_len (pm->prefix_group_name_by_index); i++)
832 if (pm->prefix_group_name_by_index[i] == 0)
835 strcmp ((const char *) pm->prefix_group_name_by_index[i],
836 (const char *) name))
841 name_dup = (u8 *) strdup ((const char *) name);
842 if (free_index != ~0)
844 pm->prefix_group_name_by_index[free_index] = name_dup;
849 vec_add1 (pm->prefix_group_name_by_index, name_dup);
850 return vec_len (pm->prefix_group_name_by_index) - 1;
855 dhcp6_cp_ip6_address_add_del (u32 sw_if_index, const u8 * prefix_group,
856 ip6_address_t address, u8 prefix_length,
860 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
861 vnet_main_t *vnm = vnet_get_main ();
862 ip6_address_info_t *address_info;
863 u32 prefix_group_index;
866 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
868 clib_warning ("Invalid sw_if_index");
869 return VNET_API_ERROR_INVALID_VALUE;
872 if (prefix_group != 0 && prefix_group[0] != '\0')
874 if (strnlen ((const char *) prefix_group, 64) == 64)
875 return VNET_API_ERROR_INVALID_VALUE;
877 prefix_group_index = prefix_group_find_or_create (prefix_group, 1);
880 prefix_group_index = ~0;
882 n = vec_len (apm->addresses);
884 vec_foreach (address_info, apm->addresses)
886 if (address_info->sw_if_index == sw_if_index &&
887 address_info->prefix_group_index == prefix_group_index &&
888 address_info->prefix_length == prefix_length &&
889 0 == memcmp (&address_info->address, &address, 16))
892 return VNET_API_ERROR_DUPLICATE_IF_ADDRESS;
893 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
894 *address_info = apm->addresses[n - 1];
895 _vec_len (apm->addresses) = n - 1;
901 return VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
903 vec_validate (apm->addresses, n);
904 address_info = &apm->addresses[n];
905 address_info->sw_if_index = sw_if_index;
906 address_info->prefix_group_index = prefix_group_index;
907 address_info->address = address;
908 address_info->prefix_length = prefix_length;
909 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
914 static clib_error_t *
915 cp_ip6_address_add_del_command_function (vlib_main_t * vm,
916 unformat_input_t * input,
917 vlib_cli_command_t * cmd)
919 vnet_main_t *vnm = vnet_get_main ();
920 clib_error_t *error = 0;
921 u32 sw_if_index = ~0;
922 u8 *prefix_group = 0;
923 ip6_address_t address;
927 unformat_input_t _line_input, *line_input = &_line_input;
929 if (!unformat_user (input, unformat_line_input, line_input))
932 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
935 (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index));
936 else if (unformat (line_input, "prefix group %s", &prefix_group));
938 if (unformat (line_input, "%U/%d", unformat_ip6_address,
939 &address, &prefix_length))
941 else if (unformat (line_input, "del"))
945 error = clib_error_return (0, "unexpected input `%U'",
946 format_unformat_error, line_input);
947 unformat_free (line_input);
952 unformat_free (line_input);
954 if (sw_if_index == ~0)
955 error = clib_error_return (0, "Missing sw_if_index");
956 else if (address_set == 0)
957 error = clib_error_return (0, "Missing address");
960 if (dhcp6_cp_ip6_address_add_del
961 (sw_if_index, prefix_group, address, prefix_length, add) != 0)
962 error = clib_error_return (0, "Error adding or removing address");
970 * This command is used to add/delete IPv6 address
971 * potentially using available prefix from specified prefix group
975 * Example of how to add IPv6 address:
976 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
977 * prefix group my-prefix-group ::7/64}
978 * Example of how to delete IPv6 address:
979 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
980 * prefix group my-prefix-group ::7/64 del}
984 VLIB_CLI_COMMAND (ip6_address_add_del_command, static) = {
985 .path = "set ip6 address",
986 .short_help = "set ip6 address <interface> [prefix group <string>] "
988 .function = cp_ip6_address_add_del_command_function,
992 static clib_error_t *
993 cp_ip6_addresses_show_command_function (vlib_main_t * vm,
994 unformat_input_t * input,
995 vlib_cli_command_t * cmd)
997 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
998 ip6_prefix_main_t *pm = &ip6_prefix_main;
999 ip6_address_info_t *address_info;
1000 const u8 *prefix_group;
1001 clib_error_t *error = 0;
1004 for (i = 0; i < vec_len (apm->addresses); i++)
1006 address_info = &apm->addresses[i];
1007 if (address_info->prefix_group_index == ~0)
1008 prefix_group = (const u8 *) "NONE";
1011 pm->prefix_group_name_by_index[address_info->prefix_group_index];
1012 vlib_cli_output (vm,
1013 "sw_if_index: %u, prefix_group: %s, address: %U/%d",
1014 address_info->sw_if_index, prefix_group,
1015 format_ip6_address, &address_info->address,
1016 address_info->prefix_length);
1023 VLIB_CLI_COMMAND (ip6_addresses_show_command, static) = {
1024 .path = "show ip6 addresses",
1025 .short_help = "show ip6 addresses",
1026 .function = cp_ip6_addresses_show_command_function,
1030 static clib_error_t *
1031 cp_ip6_prefixes_show_command_function (vlib_main_t * vm,
1032 unformat_input_t * input,
1033 vlib_cli_command_t * cmd)
1035 ip6_prefix_main_t *pm = &ip6_prefix_main;
1036 clib_error_t *error = 0;
1037 prefix_info_t *prefix_info;
1038 const u8 *prefix_group;
1039 f64 current_time = vlib_time_now (vm);
1042 pool_foreach (prefix_info, pm->prefix_pool,
1045 pm->prefix_group_name_by_index[prefix_info->prefix_group_index];
1046 vlib_cli_output (vm, "opaque_data: %lu, prefix: %U/%d, prefix group: %s, "
1047 "preferred lifetime: %u, valid lifetime: %u "
1049 prefix_info->opaque_data, format_ip6_address,
1050 &prefix_info->prefix, prefix_info->prefix_length,
1052 prefix_info->preferred_lt, prefix_info->valid_lt,
1053 prefix_info->due_time - current_time);
1061 VLIB_CLI_COMMAND (ip6_prefixes_show_command, static) = {
1062 .path = "show ip6 prefixes",
1063 .short_help = "show ip6 prefixes",
1064 .function = cp_ip6_prefixes_show_command_function,
1068 static clib_error_t *
1069 ip6_pd_clients_show_command_function (vlib_main_t * vm,
1070 unformat_input_t * input,
1071 vlib_cli_command_t * cmd)
1073 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1074 ip6_prefix_main_t *pm = &ip6_prefix_main;
1075 clib_error_t *error = 0;
1077 f64 current_time = vlib_time_now (vm);
1078 const u8 *prefix_group;
1081 const char *rebinding;
1084 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
1086 cs = &rm->client_state_by_sw_if_index[i];
1089 if (cs->T1_due_time != DBL_MAX && cs->T1_due_time > current_time)
1091 sprintf (buf1, "%u remaining",
1092 (u32) round (cs->T1_due_time - current_time));
1095 sprintf (buf1, "timeout");
1096 if (cs->T2_due_time != DBL_MAX && cs->T2_due_time > current_time)
1097 sprintf (buf2, "%u remaining",
1098 (u32) round (cs->T2_due_time - current_time));
1100 sprintf (buf2, "timeout");
1102 rebinding = ", REBINDING";
1106 pm->prefix_group_name_by_index[cs->prefix_group_index];
1108 vlib_cli_output (vm,
1109 "sw_if_index: %u, prefix group: %s, T1: %u (%s), "
1110 "T2: %u (%s), server index: %d%s", i,
1111 prefix_group, cs->T1, buf1, cs->T2, buf2,
1112 cs->server_index, rebinding);
1114 vlib_cli_output (vm, "sw_if_index: %u, prefix group: %s%s", i,
1115 prefix_group, rebinding);
1123 VLIB_CLI_COMMAND (ip6_pd_clients_show_command, static) = {
1124 .path = "show ip6 pd clients",
1125 .short_help = "show ip6 pd clients",
1126 .function = ip6_pd_clients_show_command_function,
1133 dhcp6_pd_client_enable_disable (u32 sw_if_index,
1134 const u8 * prefix_group, u8 enable)
1136 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1137 ip6_prefix_main_t *pm = &ip6_prefix_main;
1138 vnet_main_t *vnm = rm->vnet_main;
1139 client_state_t *client_state;
1140 static client_state_t empty_config = {
1143 prefix_info_t *prefix_info;
1144 prefix_info_t *prefix_list = 0;
1145 u32 prefix_group_index;
1147 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
1149 clib_warning ("Invalid sw_if_index");
1150 return VNET_API_ERROR_INVALID_VALUE;
1153 vec_validate_init_empty (rm->client_state_by_sw_if_index, sw_if_index,
1155 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
1157 u8 old_enabled = client_state->enabled;
1161 if (strnlen ((const char *) prefix_group, 64) == 64
1162 || prefix_group[0] == '\0')
1163 return VNET_API_ERROR_INVALID_VALUE;
1164 prefix_group_index =
1165 prefix_group_find_or_create (prefix_group, !old_enabled);
1167 && prefix_group_index != client_state->prefix_group_index)
1168 return VNET_API_ERROR_INVALID_VALUE;
1171 if (!old_enabled && enable)
1173 client_state->enabled = 1;
1174 client_state->prefix_group_index = prefix_group_index;
1175 ASSERT (client_state->prefix_group_index != ~0);
1176 client_state->server_index = ~0;
1179 if (rm->n_clients == 1)
1182 dhcp6_clients_enable_disable (1);
1185 ip6_enable (sw_if_index);
1186 send_client_message_start_stop (sw_if_index, ~0, DHCPV6_MSG_SOLICIT,
1189 else if (old_enabled && !enable)
1191 send_client_message_start_stop (sw_if_index, ~0, ~0, 0, 0);
1194 if (rm->n_clients == 0)
1196 dhcp6_clients_enable_disable (0);
1200 vec_validate (prefix_list, 0);
1203 pool_foreach (prefix_info, pm->prefix_pool,
1205 if (is_dhcpv6_pd_prefix (prefix_info) &&
1206 prefix_info->opaque_data == sw_if_index)
1208 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
1209 rm->client_state_by_sw_if_index[sw_if_index].enabled);
1210 client_state_t *client_state =
1211 &rm->client_state_by_sw_if_index[sw_if_index];
1212 prefix_list[0] = *prefix_info;
1213 send_client_message_start_stop (sw_if_index,
1214 client_state->server_index,
1215 DHCPV6_MSG_RELEASE, prefix_list,
1217 u32 prefix_index = prefix_info - pm->prefix_pool;
1218 notify_prefix_add_del (prefix_index, 0);
1219 set_is_dhcpv6_pd_prefix (prefix_info, 0);
1220 pool_put (pm->prefix_pool, prefix_info);
1225 vec_free (prefix_list);
1227 clib_memset (client_state, 0, sizeof (*client_state));
1233 static clib_error_t *
1234 dhcp6_pd_client_enable_disable_command_fn (vlib_main_t *
1237 * input, vlib_cli_command_t * cmd)
1239 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1240 vnet_main_t *vnm = rm->vnet_main;
1241 clib_error_t *error = 0;
1242 u8 *prefix_group = 0;
1243 u32 sw_if_index = ~0;
1245 unformat_input_t _line_input, *line_input = &_line_input;
1247 if (!unformat_user (input, unformat_line_input, line_input))
1250 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1253 (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
1255 else if (unformat (line_input, "prefix group %s", &prefix_group));
1256 else if (unformat (line_input, "disable"))
1260 error = clib_error_return (0, "unexpected input `%U'",
1261 format_unformat_error, line_input);
1266 if (prefix_group == 0 && enable)
1267 error = clib_error_return (0, "Prefix group must be set when enabling");
1268 else if (sw_if_index != ~0)
1270 if (dhcp6_pd_client_enable_disable (sw_if_index, prefix_group, enable)
1272 error = clib_error_return (0, "Invalid sw_if_index or prefix group");
1275 error = clib_error_return (0, "Missing sw_if_index");
1278 vec_free (prefix_group);
1279 unformat_free (line_input);
1285 * This command is used to enable/disable DHCPv6 PD client
1286 * on particular interface.
1290 * Example of how to enable DHCPv6 PD client:
1291 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 prefix group my-pd-group}
1292 * Example of how to disable DHCPv6 PD client:
1293 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 disable}
1297 VLIB_CLI_COMMAND (dhcp6_pd_client_enable_disable_command, static) = {
1298 .path = "dhcp6 pd client",
1299 .short_help = "dhcp6 pd client <interface> (prefix group <string> | disable)",
1300 .function = dhcp6_pd_client_enable_disable_command_fn,
1304 static clib_error_t *
1305 dhcp_pd_client_cp_init (vlib_main_t * vm)
1307 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1310 rm->vnet_main = vnet_get_main ();
1311 rm->api_main = &api_main;
1312 rm->node_index = dhcp6_pd_client_cp_process_node.index;
1317 VLIB_INIT_FUNCTION (dhcp_pd_client_cp_init);
1320 * fd.io coding-style-patch-verification: ON
1323 * eval: (c-set-style "gnu")