2 * Copyright (c) 2018 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/vnet.h>
17 #include <vlibmemory/api.h>
18 #include <vnet/vnet_msg_enum.h>
19 #include <vnet/dhcp/dhcp6_packet.h>
20 #include <vnet/dhcp/dhcp6_pd_client_dp.h>
21 #include <vnet/ip/ip.h>
22 #include <vnet/ip/ip6.h>
27 #define vl_typedefs /* define message structures */
28 #include <vnet/vnet_all_api_h.h>
31 #define vl_endianfun /* define message structures */
32 #include <vnet/vnet_all_api_h.h>
35 #include <vlibapi/api_helper_macros.h>
37 #define foreach_dhcp6_pd_client_cp_msg \
38 _(DHCP6_PD_CLIENT_ENABLE_DISABLE, dhcp6_pd_client_enable_disable) \
39 _(IP6_ADD_DEL_ADDRESS_USING_PREFIX, ip6_add_del_address_using_prefix)
41 #define vl_api_dhcp6_pd_client_enable_disable_t_print vl_noop_handler
42 #define vl_api_ip6_add_del_address_using_prefix_t_print vl_noop_handler
46 u32 prefix_group_index;
47 uword opaque_data; // used by prefix publisher
59 u32 prefix_group_index;
71 client_state_t *client_state_by_sw_if_index;
72 clib_bitmap_t *prefix_ownership_bitmap;
74 f64 max_valid_due_time;
77 vlib_main_t *vlib_main;
78 vnet_main_t *vnet_main;
81 } dhcp6_pd_client_cp_main_t;
83 static dhcp6_pd_client_cp_main_t dhcp6_pd_client_cp_main;
87 prefix_info_t *prefix_pool;
88 const u8 **prefix_group_name_by_index;
91 static ip6_prefix_main_t ip6_prefix_main;
97 u32 prefix_group_index;
98 ip6_address_t address;
102 u8 configured_in_data_plane;
103 } ip6_address_info_t;
107 ip6_address_info_t *addresses;
108 u32 *active_prefix_index_by_prefix_group_index;
109 } ip6_address_with_prefix_main_t;
111 static ip6_address_with_prefix_main_t ip6_address_with_prefix_main;
115 DHCPV6_PD_EVENT_INTERRUPT,
116 DHCPV6_PD_EVENT_DISABLE,
119 static_always_inline u32
120 active_prefix_index_by_prefix_group_index_get (u32 prefix_group_index)
122 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
124 if (prefix_group_index >=
125 vec_len (apm->active_prefix_index_by_prefix_group_index))
128 return apm->active_prefix_index_by_prefix_group_index[prefix_group_index];
131 static_always_inline void
132 active_prefix_index_by_prefix_group_index_set (u32 prefix_group_index,
135 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
136 static const u32 empty = ~0;
138 ASSERT (prefix_group_index != ~0);
140 if (prefix_index == ~0
141 && prefix_group_index >=
142 vec_len (apm->active_prefix_index_by_prefix_group_index))
145 vec_validate_init_empty (apm->active_prefix_index_by_prefix_group_index,
146 prefix_group_index, empty);
147 apm->active_prefix_index_by_prefix_group_index[prefix_group_index] =
151 static_always_inline u8
152 is_dhcpv6_pd_prefix (prefix_info_t * prefix_info)
154 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
155 ip6_prefix_main_t *pm = &ip6_prefix_main;
158 prefix_index = prefix_info - pm->prefix_pool;
159 return clib_bitmap_get (rm->prefix_ownership_bitmap, prefix_index);
162 static_always_inline void
163 set_is_dhcpv6_pd_prefix (prefix_info_t * prefix_info, u8 value)
165 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
166 ip6_prefix_main_t *pm = &ip6_prefix_main;
169 prefix_index = prefix_info - pm->prefix_pool;
170 rm->prefix_ownership_bitmap =
171 clib_bitmap_set (rm->prefix_ownership_bitmap, prefix_index, value);
175 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add);
178 notify_prefix_add_del (u32 prefix_index, u8 is_add)
180 // TODO: use registries
181 cp_ip6_address_prefix_add_del_handler (prefix_index, is_add);
185 send_client_message_start_stop (u32 sw_if_index, u32 server_index,
186 u8 msg_type, prefix_info_t * prefix_list,
189 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
190 dhcp6_pd_send_client_message_params_t params = { 0, };
191 dhcp6_pd_send_client_message_params_prefix_t *prefixes = 0, *pref;
194 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
195 rm->client_state_by_sw_if_index[sw_if_index].enabled);
196 client_state_t *client_state =
197 &rm->client_state_by_sw_if_index[sw_if_index];
199 params.sw_if_index = sw_if_index;
200 params.server_index = server_index;
201 params.msg_type = msg_type;
204 if (msg_type == DHCPV6_MSG_SOLICIT)
209 else if (msg_type == DHCPV6_MSG_REQUEST)
215 else if (msg_type == DHCPV6_MSG_RENEW)
219 f64 current_time = vlib_time_now (rm->vlib_main);
220 i32 diff_time = client_state->T2 - current_time;
223 params.mrd = diff_time;
225 else if (msg_type == DHCPV6_MSG_REBIND)
229 f64 current_time = vlib_time_now (rm->vlib_main);
230 i32 diff_time = rm->max_valid_due_time - current_time;
233 params.mrd = diff_time;
235 else if (msg_type == DHCPV6_MSG_RELEASE)
243 if (vec_len (prefix_list) != 0)
244 vec_validate (prefixes, vec_len (prefix_list) - 1);
245 for (i = 0; i < vec_len (prefix_list); i++)
247 prefix_info_t *prefix = &prefix_list[i];
249 pref->valid_lt = prefix->valid_lt;
250 pref->preferred_lt = prefix->preferred_lt;
251 pref->prefix = prefix->prefix;
252 pref->prefix_length = prefix->prefix_length;
254 params.prefixes = prefixes;
256 dhcp6_pd_send_client_message (rm->vlib_main, sw_if_index, !start, ¶ms);
258 vec_free (params.prefixes);
261 static void interrupt_process (void);
264 ip6_enable (u32 sw_if_index)
266 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
269 rv = enable_ip6_interface (rm->vlib_main, sw_if_index);
275 ip6_prefixes_equal (ip6_address_t * prefix1, ip6_address_t * prefix2, u8 len)
279 if (prefix1->as_u64[0] != prefix2->as_u64[0])
283 return clib_net_to_host_u64 (prefix1->as_u64[1]) >> (128 - len) ==
284 clib_net_to_host_u64 (prefix2->as_u64[1]) >> (128 - len);
286 return clib_net_to_host_u64 (prefix1->as_u64[0]) >> (64 - len) ==
287 clib_net_to_host_u64 (prefix2->as_u64[0]) >> (64 - len);
290 static clib_error_t *
291 dhcp6_pd_reply_event_handler (vl_api_dhcp6_pd_reply_event_t * mp)
293 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
294 ip6_prefix_main_t *pm = &ip6_prefix_main;
295 vlib_main_t *vm = rm->vlib_main;
296 client_state_t *client_state;
297 ip6_address_t *prefix;
300 vl_api_dhcp6_pd_prefix_info_t *api_prefix;
301 u32 inner_status_code;
305 clib_error_t *error = 0;
308 current_time = vlib_time_now (vm);
310 sw_if_index = ntohl (mp->sw_if_index);
312 if (sw_if_index >= vec_len (rm->client_state_by_sw_if_index))
315 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
317 if (!client_state->enabled)
320 server_index = ntohl (mp->server_index);
322 n_prefixes = ntohl (mp->n_prefixes);
324 inner_status_code = ntohs (mp->inner_status_code);
325 status_code = ntohs (mp->status_code);
327 if (mp->msg_type == DHCPV6_MSG_ADVERTISE
328 && client_state->server_index == ~0)
330 prefix_info_t *prefix_list = 0, *prefix_info;
333 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
336 ("Advertise message arrived with NoPrefixAvail status code");
341 vec_validate (prefix_list, n_prefixes - 1);
342 for (i = 0; i < n_prefixes; i++)
344 api_prefix = &mp->prefixes[i];
345 prefix = (ip6_address_t *) api_prefix->prefix;
346 prefix_length = api_prefix->prefix_length;
348 prefix_info = &prefix_list[i];
349 prefix_info->prefix = *prefix;
350 prefix_info->prefix_length = prefix_length;
351 prefix_info->preferred_lt = 0;
352 prefix_info->valid_lt = 0;
355 client_state->server_index = server_index;
357 send_client_message_start_stop (sw_if_index, server_index,
358 DHCPV6_MSG_REQUEST, prefix_list, 1);
359 vec_free (prefix_list);
362 if (mp->msg_type != DHCPV6_MSG_REPLY)
365 if (!client_state->rebinding && client_state->server_index != server_index)
367 clib_warning ("Reply message arrived with Server ID different "
368 "from that in Request of Renew message");
372 if (inner_status_code == DHCPV6_STATUS_NOPREFIX_AVAIL)
374 clib_warning ("Reply message arrived with NoPrefixAvail status code");
378 ("Invalid Reply message arrived: It contains NoPrefixAvail "
379 "status code but also contains prefixes");
384 if (status_code == DHCPV6_STATUS_UNSPEC_FAIL)
386 clib_warning ("Reply message arrived with UnspecFail status code");
390 send_client_message_start_stop (sw_if_index, server_index,
393 for (i = 0; i < n_prefixes; i++)
395 prefix_info_t *prefix_info = 0;
400 api_prefix = &mp->prefixes[i];
402 prefix = (ip6_address_t *) api_prefix->prefix;
403 prefix_length = api_prefix->prefix_length;
405 if (ip6_address_is_link_local_unicast (prefix))
408 valid_time = ntohl (api_prefix->valid_time);
409 preferred_time = ntohl (api_prefix->preferred_time);
410 prefix_length = api_prefix->prefix_length;
412 if (preferred_time > valid_time)
415 u8 address_prefix_present = 0;
417 pool_foreach (prefix_info, pm->prefix_pool,
419 if (is_dhcpv6_pd_prefix (prefix_info) &&
420 prefix_info->opaque_data == sw_if_index &&
421 prefix_info->prefix_length == prefix_length &&
422 ip6_prefixes_equal (&prefix_info->prefix, prefix, prefix_length))
424 address_prefix_present = 1;
425 goto prefix_pool_foreach_out;
429 prefix_pool_foreach_out:
431 if (address_prefix_present)
433 prefix_info->preferred_lt = preferred_time;
434 prefix_info->valid_lt = valid_time;
435 prefix_info->due_time = current_time + valid_time;
442 pool_get (pm->prefix_pool, prefix_info);
443 prefix_info->prefix_group_index = client_state->prefix_group_index;
444 set_is_dhcpv6_pd_prefix (prefix_info, 1);
445 prefix_info->opaque_data = sw_if_index;
446 prefix_info->prefix_length = prefix_length;
447 prefix_info->prefix = *prefix;
448 prefix_info->preferred_lt = preferred_time;
449 prefix_info->valid_lt = valid_time;
450 prefix_info->due_time = current_time + valid_time;
451 rm->client_state_by_sw_if_index[sw_if_index].prefix_count++;
453 u32 prefix_index = prefix_info - pm->prefix_pool;
454 notify_prefix_add_del (prefix_index, 1);
457 client_state->server_index = server_index;
458 client_state->T1 = ntohl (mp->T1);
459 client_state->T2 = ntohl (mp->T2);
460 if (client_state->T1 != 0)
461 client_state->T1_due_time = current_time + client_state->T1;
462 if (client_state->T2 != 0)
463 client_state->T2_due_time = current_time + client_state->T2;
464 client_state->rebinding = 0;
466 interrupt_process ();
471 static prefix_info_t *
472 create_prefix_list (u32 sw_if_index)
474 ip6_prefix_main_t *pm = &ip6_prefix_main;
475 prefix_info_t *prefix_info, *prefix_list = 0;;
478 pool_foreach (prefix_info, pm->prefix_pool,
480 if (is_dhcpv6_pd_prefix (prefix_info) &&
481 prefix_info->opaque_data == sw_if_index)
483 u32 pos = vec_len (prefix_list);
484 vec_validate (prefix_list, pos);
485 clib_memcpy (&prefix_list[pos], prefix_info, sizeof (*prefix_info));
493 VNET_DHCP6_PD_REPLY_EVENT_FUNCTION (dhcp6_pd_reply_event_handler);
496 dhcp6_pd_client_cp_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
499 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
500 ip6_prefix_main_t *pm = &ip6_prefix_main;
501 prefix_info_t *prefix_info;
502 client_state_t *client_state;
503 f64 sleep_time = 1e9;
507 uword *event_data = 0;
512 vlib_process_wait_for_event_or_clock (vm, sleep_time);
513 event_type = vlib_process_get_events (vm, &event_data);
514 vec_reset_length (event_data);
516 if (event_type == DHCPV6_PD_EVENT_DISABLE)
518 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_DISABLED);
523 current_time = vlib_time_now (vm);
526 due_time = current_time + 1e9;
528 pool_foreach (prefix_info, pm->prefix_pool,
530 if (is_dhcpv6_pd_prefix (prefix_info))
532 if (prefix_info->due_time > current_time)
534 if (prefix_info->due_time < due_time)
535 due_time = prefix_info->due_time;
539 u32 prefix_index = prefix_info - pm->prefix_pool;
540 notify_prefix_add_del (prefix_index, 0);
541 u32 sw_if_index = prefix_info->opaque_data;
542 set_is_dhcpv6_pd_prefix (prefix_info, 0);
543 pool_put (pm->prefix_pool, prefix_info);
544 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
545 if (--client_state->prefix_count == 0)
547 client_state->rebinding = 0;
548 client_state->server_index = ~0;
549 send_client_message_start_stop (sw_if_index, ~0,
557 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
559 client_state_t *cs = &rm->client_state_by_sw_if_index[i];
560 if (cs->enabled && cs->server_index != ~0)
562 if (cs->T2_due_time > current_time)
564 if (cs->T2_due_time < due_time)
565 due_time = cs->T2_due_time;
566 if (cs->T1_due_time > current_time)
568 if (cs->T1_due_time < due_time)
569 due_time = cs->T1_due_time;
573 cs->T1_due_time = DBL_MAX;
574 prefix_info_t *prefix_list;
575 prefix_list = create_prefix_list (i);
576 send_client_message_start_stop (i, cs->server_index,
579 vec_free (prefix_list);
584 cs->T2_due_time = DBL_MAX;
585 prefix_info_t *prefix_list;
586 prefix_list = create_prefix_list (i);
588 send_client_message_start_stop (i, ~0,
591 vec_free (prefix_list);
595 current_time = vlib_time_now (vm);
597 while (due_time < current_time);
599 sleep_time = due_time - current_time;
606 VLIB_REGISTER_NODE (dhcp6_pd_client_cp_process_node) = {
607 .function = dhcp6_pd_client_cp_process,
608 .type = VLIB_NODE_TYPE_PROCESS,
609 .name = "dhcp6-pd-client-cp-process",
614 interrupt_process (void)
616 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
617 vlib_main_t *vm = rm->vlib_main;
619 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
620 DHCPV6_PD_EVENT_INTERRUPT, 0);
624 disable_process (void)
626 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
627 vlib_main_t *vm = rm->vlib_main;
629 vlib_process_signal_event (vm, dhcp6_pd_client_cp_process_node.index,
630 DHCPV6_PD_EVENT_DISABLE, 0);
634 enable_process (void)
636 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
637 vlib_main_t *vm = rm->vlib_main;
640 node = vec_elt (vm->node_main.nodes, rm->node_index);
642 vlib_node_set_state (vm, rm->node_index, VLIB_NODE_STATE_POLLING);
643 vlib_start_process (vm, node->runtime_index);
647 cp_ip6_construct_address (ip6_address_info_t * address_info, u32 prefix_index,
648 ip6_address_t * r_addr)
650 ip6_prefix_main_t *pm = &ip6_prefix_main;
651 prefix_info_t *prefix;
652 u64 mask, addr0, pref;
654 addr0 = clib_net_to_host_u64 (address_info->address.as_u64[0]);
655 prefix = &pm->prefix_pool[prefix_index];
656 if (prefix->prefix_length > 64)
658 clib_warning ("Prefix length is bigger that 64 bits");
661 mask = ((u64) 1 << (64 - prefix->prefix_length)) - 1;
663 pref = clib_host_to_net_u64 (prefix->prefix.as_u64[0]);
666 r_addr->as_u64[0] = clib_host_to_net_u64 (addr0);
667 r_addr->as_u64[1] = address_info->address.as_u64[1];
673 cp_ip6_address_add_del_now (ip6_address_info_t * address_info, u8 is_add)
675 vlib_main_t *vm = vlib_get_main ();
680 if (address_info->prefix_group_index != ~0)
682 active_prefix_index_by_prefix_group_index_get
683 (address_info->prefix_group_index);
687 if (is_add && !address_info->configured_in_data_plane)
689 if (prefix_index != ~0)
691 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
695 ip6_add_del_interface_address (vm, address_info->sw_if_index,
696 &addr, 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 if (address_info->prefix_group_index == ~0)
709 ip6_add_del_interface_address (vm, address_info->sw_if_index,
710 &address_info->address,
711 address_info->prefix_length,
714 clib_warning ("Failed adding IPv6 address: %U",
715 format_clib_error, error);
717 address_info->configured_in_data_plane = 1;
721 else if (!is_add && address_info->configured_in_data_plane)
723 if (prefix_index == ~0)
725 if (address_info->prefix_group_index == ~0)
728 ip6_add_del_interface_address (vm, address_info->sw_if_index,
729 &address_info->address,
730 address_info->prefix_length,
733 clib_warning ("Failed deleting IPv6 address: %U",
734 format_clib_error, error);
735 address_info->configured_in_data_plane = 0;
738 clib_warning ("Deleting address with prefix "
739 "but active prefix index is not set");
743 if (cp_ip6_construct_address (address_info, prefix_index, &addr) !=
747 ip6_add_del_interface_address (vm, address_info->sw_if_index,
748 &addr, address_info->prefix_length,
751 clib_warning ("Failed deleting IPv6 address: %U",
752 format_clib_error, error);
753 address_info->configured_in_data_plane = 0;
759 cp_ip6_address_find_new_active_prefix (u32 prefix_group_index,
760 u32 ignore_prefix_index)
762 ip6_prefix_main_t *pm = &ip6_prefix_main;
763 prefix_info_t *prefix_info;
766 pool_foreach (prefix_info, pm->prefix_pool,
768 if (prefix_info->prefix_group_index == prefix_group_index &&
769 prefix_info - pm->prefix_pool != ignore_prefix_index)
770 return prefix_info - pm->prefix_pool;
777 cp_ip6_address_prefix_add_del_handler (u32 prefix_index, u8 is_add)
779 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
780 ip6_prefix_main_t *pm = &ip6_prefix_main;
781 ip6_address_info_t *address_info;
782 prefix_info_t *prefix;
783 u32 new_prefix_index;
784 u32 prefix_group_index;
787 prefix = &pm->prefix_pool[prefix_index];
788 prefix_group_index = prefix->prefix_group_index;
792 if (active_prefix_index_by_prefix_group_index_get
793 (prefix_group_index) == ~0)
795 active_prefix_index_by_prefix_group_index_set
796 (prefix_group_index, prefix_index);
797 for (i = 0; i < vec_len (apm->addresses); i++)
799 address_info = &apm->addresses[i];
800 if (address_info->prefix_group_index == prefix_group_index)
801 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
807 if (active_prefix_index_by_prefix_group_index_get
808 (prefix_group_index) == 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, 0 /* del */ );
816 active_prefix_index_by_prefix_group_index_set
817 (prefix_group_index, ~0);
819 cp_ip6_address_find_new_active_prefix (prefix_group_index,
821 if (new_prefix_index != ~0)
823 active_prefix_index_by_prefix_group_index_set
824 (prefix_group_index, new_prefix_index);
825 for (i = 0; i < vec_len (apm->addresses); i++)
827 address_info = &apm->addresses[i];
828 if (address_info->prefix_group_index == prefix_group_index)
829 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
837 prefix_group_find_or_create (const u8 * name, u8 create)
839 ip6_prefix_main_t *pm = &ip6_prefix_main;
844 for (i = 0; i < vec_len (pm->prefix_group_name_by_index); i++)
846 if (pm->prefix_group_name_by_index[i] == 0)
849 strcmp ((const char *) pm->prefix_group_name_by_index[i],
850 (const char *) name))
855 name_dup = (u8 *) strdup ((const char *) name);
856 if (free_index != ~0)
858 pm->prefix_group_name_by_index[free_index] = name_dup;
863 vec_add1 (pm->prefix_group_name_by_index, name_dup);
864 return vec_len (pm->prefix_group_name_by_index) - 1;
869 cp_ip6_address_add_del (u32 sw_if_index, const u8 * prefix_group,
870 ip6_address_t address, u8 prefix_length, u8 is_add)
873 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
874 vnet_main_t *vnm = vnet_get_main ();
875 ip6_address_info_t *address_info;
876 u32 prefix_group_index;
879 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
881 clib_warning ("Invalid sw_if_index");
882 return VNET_API_ERROR_INVALID_VALUE;
885 if (prefix_group != 0 && prefix_group[0] != '\0')
887 if (strnlen ((const char *) prefix_group, 64) == 64)
888 return VNET_API_ERROR_INVALID_VALUE;
890 prefix_group_index = prefix_group_find_or_create (prefix_group, 1);
893 prefix_group_index = ~0;
895 n = vec_len (apm->addresses);
897 vec_foreach (address_info, apm->addresses)
899 if (address_info->sw_if_index == sw_if_index &&
900 address_info->prefix_group_index == prefix_group_index &&
901 address_info->prefix_length == prefix_length &&
902 0 == memcmp (&address_info->address, &address, 16))
905 return VNET_API_ERROR_DUPLICATE_IF_ADDRESS;
906 cp_ip6_address_add_del_now (address_info, 0 /* del */ );
907 *address_info = apm->addresses[n - 1];
908 _vec_len (apm->addresses) = n - 1;
914 return VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
916 vec_validate (apm->addresses, n);
917 address_info = &apm->addresses[n];
918 address_info->sw_if_index = sw_if_index;
919 address_info->prefix_group_index = prefix_group_index;
920 address_info->address = address;
921 address_info->prefix_length = prefix_length;
922 cp_ip6_address_add_del_now (address_info, 1 /* add */ );
928 vl_api_ip6_add_del_address_using_prefix_t_handler
929 (vl_api_ip6_add_del_address_using_prefix_t * mp)
931 vl_api_ip6_add_del_address_using_prefix_reply_t *rmp;
933 ip6_address_t address;
937 VALIDATE_SW_IF_INDEX (mp);
939 sw_if_index = ntohl (mp->sw_if_index);
941 memcpy (address.as_u8, mp->address, 16);
942 prefix_length = mp->prefix_length;
945 cp_ip6_address_add_del (sw_if_index, mp->prefix_group, address,
946 prefix_length, mp->is_add);
948 BAD_SW_IF_INDEX_LABEL;
950 REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY);
953 static clib_error_t *
954 cp_ip6_address_add_del_command_function (vlib_main_t * vm,
955 unformat_input_t * input,
956 vlib_cli_command_t * cmd)
958 vnet_main_t *vnm = vnet_get_main ();
959 clib_error_t *error = 0;
960 u32 sw_if_index = ~0;
961 u8 *prefix_group = 0;
962 ip6_address_t address;
967 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
970 (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index));
971 else if (unformat (input, "prefix group %s", &prefix_group));
974 (input, "%U/%d", unformat_ip6_address, &address, &prefix_length))
976 else if (unformat (input, "del"))
980 error = clib_error_return (0, "unexpected input `%U'",
981 format_unformat_error, input);
986 if (sw_if_index == ~0)
987 error = clib_error_return (0, "Missing sw_if_index");
988 else if (address_set == 0)
989 error = clib_error_return (0, "Missing address");
992 if (cp_ip6_address_add_del
993 (sw_if_index, prefix_group, address, prefix_length, add) != 0)
994 error = clib_error_return (0, "Error adding or removing address");
1002 * This command is used to add/delete IPv6 address
1003 * potentially using available prefix from specified prefix group
1007 * Example of how to add IPv6 address:
1008 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
1009 * prefix group my-prefix-group ::7/64}
1010 * Example of how to delete IPv6 address:
1011 * @cliexcmd{set ip6 address GigabitEthernet2/0/0
1012 * prefix group my-prefix-group ::7/64 del}
1016 VLIB_CLI_COMMAND (ip6_address_add_del_command, static) = {
1017 .path = "set ip6 address",
1018 .short_help = "set ip6 address <interface> [prefix group <string>] "
1020 .function = cp_ip6_address_add_del_command_function,
1024 static clib_error_t *
1025 cp_ip6_addresses_show_command_function (vlib_main_t * vm,
1026 unformat_input_t * input,
1027 vlib_cli_command_t * cmd)
1029 ip6_address_with_prefix_main_t *apm = &ip6_address_with_prefix_main;
1030 ip6_prefix_main_t *pm = &ip6_prefix_main;
1031 ip6_address_info_t *address_info;
1032 const u8 *prefix_group;
1033 clib_error_t *error = 0;
1036 for (i = 0; i < vec_len (apm->addresses); i++)
1038 address_info = &apm->addresses[i];
1039 if (address_info->prefix_group_index == ~0)
1040 prefix_group = (const u8 *) "NONE";
1043 pm->prefix_group_name_by_index[address_info->prefix_group_index];
1044 vlib_cli_output (vm,
1045 "sw_if_index: %u, prefix_group: %s, address: %U/%d",
1046 address_info->sw_if_index, prefix_group,
1047 format_ip6_address, &address_info->address,
1048 address_info->prefix_length);
1055 VLIB_CLI_COMMAND (ip6_addresses_show_command, static) = {
1056 .path = "show ip6 addresses",
1057 .short_help = "show ip6 addresses",
1058 .function = cp_ip6_addresses_show_command_function,
1062 static clib_error_t *
1063 cp_ip6_prefixes_show_command_function (vlib_main_t * vm,
1064 unformat_input_t * input,
1065 vlib_cli_command_t * cmd)
1067 ip6_prefix_main_t *pm = &ip6_prefix_main;
1068 clib_error_t *error = 0;
1069 prefix_info_t *prefix_info;
1070 const u8 *prefix_group;
1071 f64 current_time = vlib_time_now (vm);
1074 pool_foreach (prefix_info, pm->prefix_pool,
1077 pm->prefix_group_name_by_index[prefix_info->prefix_group_index];
1078 vlib_cli_output (vm, "opaque_data: %lu, prefix: %U/%d, prefix group: %s, "
1079 "preferred lifetime: %u, valid lifetime: %u "
1081 prefix_info->opaque_data, format_ip6_address,
1082 &prefix_info->prefix, prefix_info->prefix_length,
1084 prefix_info->preferred_lt, prefix_info->valid_lt,
1085 prefix_info->due_time - current_time);
1093 VLIB_CLI_COMMAND (ip6_prefixes_show_command, static) = {
1094 .path = "show ip6 prefixes",
1095 .short_help = "show ip6 prefixes",
1096 .function = cp_ip6_prefixes_show_command_function,
1100 static clib_error_t *
1101 ip6_pd_clients_show_command_function (vlib_main_t * vm,
1102 unformat_input_t * input,
1103 vlib_cli_command_t * cmd)
1105 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1106 ip6_prefix_main_t *pm = &ip6_prefix_main;
1107 clib_error_t *error = 0;
1109 f64 current_time = vlib_time_now (vm);
1110 const u8 *prefix_group;
1113 const char *rebinding;
1116 for (i = 0; i < vec_len (rm->client_state_by_sw_if_index); i++)
1118 cs = &rm->client_state_by_sw_if_index[i];
1121 if (cs->T1_due_time != DBL_MAX && cs->T1_due_time > current_time)
1123 sprintf (buf1, "%u remaining",
1124 (u32) round (cs->T1_due_time - current_time));
1127 sprintf (buf1, "timeout");
1128 if (cs->T2_due_time != DBL_MAX && cs->T2_due_time > current_time)
1129 sprintf (buf2, "%u remaining",
1130 (u32) round (cs->T2_due_time - current_time));
1132 sprintf (buf2, "timeout");
1134 rebinding = ", REBINDING";
1138 pm->prefix_group_name_by_index[cs->prefix_group_index];
1140 vlib_cli_output (vm,
1141 "sw_if_index: %u, prefix group: %s, T1: %u (%s), "
1142 "T2: %u (%s), server index: %d%s", i,
1143 prefix_group, cs->T1, buf1, cs->T2, buf2,
1144 cs->server_index, rebinding);
1146 vlib_cli_output (vm, "sw_if_index: %u, prefix group: %s%s", i,
1147 prefix_group, rebinding);
1155 VLIB_CLI_COMMAND (ip6_pd_clients_show_command, static) = {
1156 .path = "show ip6 pd clients",
1157 .short_help = "show ip6 pd clients",
1158 .function = ip6_pd_clients_show_command_function,
1163 dhcp6_pd_client_enable_disable (u32 sw_if_index, const u8 * prefix_group,
1166 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1167 ip6_prefix_main_t *pm = &ip6_prefix_main;
1168 vnet_main_t *vnm = rm->vnet_main;
1169 client_state_t *client_state;
1170 static client_state_t empty_config = {
1173 prefix_info_t *prefix_info;
1174 prefix_info_t *prefix_list = 0;
1175 u32 prefix_group_index;
1177 if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
1179 clib_warning ("Invalid sw_if_index");
1180 return VNET_API_ERROR_INVALID_VALUE;
1183 vec_validate_init_empty (rm->client_state_by_sw_if_index, sw_if_index,
1185 client_state = &rm->client_state_by_sw_if_index[sw_if_index];
1187 u8 old_enabled = client_state->enabled;
1191 if (strnlen ((const char *) prefix_group, 64) == 64
1192 || prefix_group[0] == '\0')
1193 return VNET_API_ERROR_INVALID_VALUE;
1194 prefix_group_index =
1195 prefix_group_find_or_create (prefix_group, !old_enabled);
1197 && prefix_group_index != client_state->prefix_group_index)
1198 return VNET_API_ERROR_INVALID_VALUE;
1201 if (!old_enabled && enable)
1203 client_state->enabled = 1;
1204 client_state->prefix_group_index = prefix_group_index;
1205 ASSERT (client_state->prefix_group_index != ~0);
1206 client_state->server_index = ~0;
1209 if (rm->n_clients == 1)
1212 dhcp6_clients_enable_disable (1);
1215 ip6_enable (sw_if_index);
1216 send_client_message_start_stop (sw_if_index, ~0, DHCPV6_MSG_SOLICIT,
1219 else if (old_enabled && !enable)
1221 send_client_message_start_stop (sw_if_index, ~0, ~0, 0, 0);
1224 if (rm->n_clients == 0)
1226 dhcp6_clients_enable_disable (0);
1230 vec_validate (prefix_list, 0);
1233 pool_foreach (prefix_info, pm->prefix_pool,
1235 if (is_dhcpv6_pd_prefix (prefix_info) &&
1236 prefix_info->opaque_data == sw_if_index)
1238 ASSERT (sw_if_index < vec_len (rm->client_state_by_sw_if_index) &&
1239 rm->client_state_by_sw_if_index[sw_if_index].enabled);
1240 client_state_t *client_state =
1241 &rm->client_state_by_sw_if_index[sw_if_index];
1242 prefix_list[0] = *prefix_info;
1243 send_client_message_start_stop (sw_if_index,
1244 client_state->server_index,
1245 DHCPV6_MSG_RELEASE, prefix_list,
1247 u32 prefix_index = prefix_info - pm->prefix_pool;
1248 notify_prefix_add_del (prefix_index, 0);
1249 set_is_dhcpv6_pd_prefix (prefix_info, 0);
1250 pool_put (pm->prefix_pool, prefix_info);
1255 vec_free (prefix_list);
1257 memset (client_state, 0, sizeof (*client_state));
1263 static clib_error_t *
1264 dhcp6_pd_client_enable_disable_command_fn (vlib_main_t *
1267 * input, vlib_cli_command_t * cmd)
1269 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1270 vnet_main_t *vnm = rm->vnet_main;
1271 clib_error_t *error = 0;
1272 u8 *prefix_group = 0;
1273 u32 sw_if_index = ~0;
1276 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1279 (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
1281 else if (unformat (input, "prefix group %s", &prefix_group));
1282 else if (unformat (input, "disable"))
1286 error = clib_error_return (0, "unexpected input `%U'",
1287 format_unformat_error, input);
1292 if (prefix_group == 0 && enable)
1293 error = clib_error_return (0, "Prefix group must be set when enabling");
1294 else if (sw_if_index != ~0)
1296 if (dhcp6_pd_client_enable_disable (sw_if_index, prefix_group, enable)
1298 error = clib_error_return (0, "Invalid sw_if_index or prefix group");
1301 error = clib_error_return (0, "Missing sw_if_index");
1304 vec_free (prefix_group);
1310 * This command is used to enable/disable DHCPv6 PD client
1311 * on particular interface.
1315 * Example of how to enable DHCPv6 PD client:
1316 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 prefix group my-pd-group}
1317 * Example of how to disable DHCPv6 PD client:
1318 * @cliexcmd{dhcp6 pd client GigabitEthernet2/0/0 disable}
1322 VLIB_CLI_COMMAND (dhcp6_pd_client_enable_disable_command, static) = {
1323 .path = "dhcp6 pd client",
1324 .short_help = "dhcp6 pd client <interface> (prefix group <string> | disable)",
1325 .function = dhcp6_pd_client_enable_disable_command_fn,
1330 vl_api_dhcp6_pd_client_enable_disable_t_handler
1331 (vl_api_dhcp6_pd_client_enable_disable_t * mp)
1333 vl_api_dhcp6_pd_client_enable_disable_reply_t *rmp;
1337 VALIDATE_SW_IF_INDEX (mp);
1339 sw_if_index = ntohl (mp->sw_if_index);
1342 dhcp6_pd_client_enable_disable (sw_if_index, mp->prefix_group,
1345 BAD_SW_IF_INDEX_LABEL;
1347 REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY);
1350 #define vl_msg_name_crc_list
1351 #include <vnet/dhcp/dhcp6_pd_client_cp.api.h>
1352 #undef vl_msg_name_crc_list
1355 setup_message_id_table (api_main_t * am)
1357 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
1358 foreach_vl_msg_name_crc_dhcp6_pd_client_cp;
1362 static clib_error_t *
1363 dhcp_pd_client_cp_init (vlib_main_t * vm)
1365 dhcp6_pd_client_cp_main_t *rm = &dhcp6_pd_client_cp_main;
1366 api_main_t *am = &api_main;
1369 rm->vnet_main = vnet_get_main ();
1371 rm->node_index = dhcp6_pd_client_cp_process_node.index;
1374 vl_msg_api_set_handlers(VL_API_##N, #n, \
1375 vl_api_##n##_t_handler, \
1377 vl_api_##n##_t_endian, \
1378 vl_api_##n##_t_print, \
1379 sizeof(vl_api_##n##_t), 0/* do NOT trace! */);
1380 foreach_dhcp6_pd_client_cp_msg;
1384 * Set up the (msg_name, crc, message-id) table
1386 setup_message_id_table (am);
1391 VLIB_INIT_FUNCTION (dhcp_pd_client_cp_init);
1394 * fd.io coding-style-patch-verification: ON
1397 * eval: (c-set-style "gnu")