2 * Copyright (c) 2015 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/ipsec/ipsec.h>
20 * Policy packet & bytes counters
22 vlib_combined_counter_main_t ipsec_spd_policy_counters = {
24 .stat_segment_name = "/net/ipsec/policy",
28 ipsec_policy_mk_type (bool is_outbound,
30 ipsec_policy_action_t action,
31 ipsec_spd_policy_type_t * type)
36 IPSEC_SPD_POLICY_IP6_OUTBOUND : IPSEC_SPD_POLICY_IP4_OUTBOUND);
43 case IPSEC_POLICY_ACTION_PROTECT:
45 IPSEC_SPD_POLICY_IP6_INBOUND_PROTECT :
46 IPSEC_SPD_POLICY_IP4_INBOUND_PROTECT);
48 case IPSEC_POLICY_ACTION_BYPASS:
50 IPSEC_SPD_POLICY_IP6_INBOUND_BYPASS :
51 IPSEC_SPD_POLICY_IP4_INBOUND_BYPASS);
53 case IPSEC_POLICY_ACTION_DISCARD:
55 IPSEC_SPD_POLICY_IP6_INBOUND_DISCARD :
56 IPSEC_SPD_POLICY_IP4_INBOUND_DISCARD);
58 case IPSEC_POLICY_ACTION_RESOLVE:
63 /* Unsupported type */
67 static_always_inline int
68 ipsec_is_policy_inbound (ipsec_policy_t *policy)
70 if (policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_PROTECT ||
71 policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_BYPASS ||
72 policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_DISCARD ||
73 policy->type == IPSEC_SPD_POLICY_IP6_INBOUND_PROTECT ||
74 policy->type == IPSEC_SPD_POLICY_IP6_INBOUND_BYPASS ||
75 policy->type == IPSEC_SPD_POLICY_IP6_INBOUND_DISCARD)
81 static_always_inline int
82 ipsec_is_fp_enabled (ipsec_main_t *im, ipsec_spd_t *spd,
83 ipsec_policy_t *policy)
85 if ((im->fp_spd_ipv4_out_is_enabled &&
86 PREDICT_TRUE (INDEX_INVALID != spd->fp_spd.ip4_out_lookup_hash_idx) &&
87 policy->type == IPSEC_SPD_POLICY_IP4_OUTBOUND) ||
88 (im->fp_spd_ipv4_in_is_enabled &&
89 PREDICT_TRUE (INDEX_INVALID != spd->fp_spd.ip4_in_lookup_hash_idx) &&
90 (policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_PROTECT ||
91 policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_BYPASS ||
92 policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_DISCARD)) ||
93 (im->fp_spd_ipv6_in_is_enabled &&
94 PREDICT_TRUE (INDEX_INVALID != spd->fp_spd.ip6_in_lookup_hash_idx) &&
95 (policy->type == IPSEC_SPD_POLICY_IP6_INBOUND_PROTECT ||
96 policy->type == IPSEC_SPD_POLICY_IP6_INBOUND_BYPASS ||
97 policy->type == IPSEC_SPD_POLICY_IP6_INBOUND_DISCARD)) ||
98 (im->fp_spd_ipv6_out_is_enabled &&
99 PREDICT_TRUE (INDEX_INVALID != spd->fp_spd.ip6_out_lookup_hash_idx) &&
100 policy->type == IPSEC_SPD_POLICY_IP6_OUTBOUND))
106 ipsec_add_del_policy (vlib_main_t * vm,
107 ipsec_policy_t * policy, int is_add, u32 * stat_index)
109 ipsec_main_t *im = &ipsec_main;
110 ipsec_spd_t *spd = 0;
115 p = hash_get (im->spd_index_by_spd_id, policy->id);
118 return VNET_API_ERROR_SYSCALL_ERROR_1;
121 spd = pool_elt_at_index (im->spds, spd_index);
123 return VNET_API_ERROR_SYSCALL_ERROR_1;
125 if (im->output_flow_cache_flag && !policy->is_ipv6 &&
126 policy->type == IPSEC_SPD_POLICY_IP4_OUTBOUND)
129 * Flow cache entry is valid only when epoch_count value in control
130 * plane and data plane match. Otherwise, flow cache entry is considered
131 * stale. To avoid the race condition of using old epoch_count value
132 * in data plane after the roll over of epoch_count in control plane,
133 * entire flow cache is reset.
135 if (im->epoch_count == 0xFFFFFFFF)
137 /* Reset all the entries in flow cache */
138 clib_memset_u8 (im->ipsec4_out_spd_hash_tbl, 0,
139 im->ipsec4_out_spd_hash_num_buckets *
140 (sizeof (*(im->ipsec4_out_spd_hash_tbl))));
142 /* Increment epoch counter by 1 */
143 clib_atomic_fetch_add_relax (&im->epoch_count, 1);
144 /* Reset spd flow cache counter since all old entries are stale */
145 clib_atomic_store_relax_n (&im->ipsec4_out_spd_flow_cache_entries, 0);
148 if ((policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_PROTECT ||
149 policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_BYPASS ||
150 policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_DISCARD) &&
151 im->input_flow_cache_flag && !policy->is_ipv6)
154 * Flow cache entry is valid only when input_epoch_count value in control
155 * plane and data plane match. Otherwise, flow cache entry is considered
156 * stale. To avoid the race condition of using old input_epoch_count
157 * value in data plane after the roll over of input_epoch_count in
158 * control plane, entire flow cache is reset.
160 if (im->input_epoch_count == 0xFFFFFFFF)
162 /* Reset all the entries in flow cache */
163 clib_memset_u8 (im->ipsec4_in_spd_hash_tbl, 0,
164 im->ipsec4_in_spd_hash_num_buckets *
165 (sizeof (*(im->ipsec4_in_spd_hash_tbl))));
167 /* Increment epoch counter by 1 */
168 clib_atomic_fetch_add_relax (&im->input_epoch_count, 1);
169 /* Reset spd flow cache counter since all old entries are stale */
170 im->ipsec4_in_spd_flow_cache_entries = 0;
178 if (policy->policy == IPSEC_POLICY_ACTION_PROTECT)
180 index_t sa_index = ipsec_sa_find_and_lock (policy->sa_id);
182 if (INDEX_INVALID == sa_index)
183 return VNET_API_ERROR_SYSCALL_ERROR_1;
184 policy->sa_index = sa_index;
187 policy->sa_index = INDEX_INVALID;
190 * Try adding the policy into fast path SPD first. Only adding to
191 * traditional SPD when failed.
193 if (ipsec_is_fp_enabled (im, spd, policy))
194 return ipsec_fp_add_del_policy ((void *) &spd->fp_spd, policy, 1,
197 pool_get (im->policies, vp);
198 clib_memcpy (vp, policy, sizeof (*vp));
199 policy_index = vp - im->policies;
201 vlib_validate_combined_counter (&ipsec_spd_policy_counters,
203 vlib_zero_combined_counter (&ipsec_spd_policy_counters, policy_index);
205 vec_foreach_index (i, spd->policies[policy->type])
208 pool_elt_at_index (im->policies, spd->policies[policy->type][i]);
210 if (p->priority <= vp->priority)
216 vec_insert_elts (spd->policies[policy->type], &policy_index, 1, i);
218 *stat_index = policy_index;
225 * Try to delete the policy from the fast path SPD first. Delete from
226 * traditional SPD when fp delete fails.
229 if (ipsec_is_fp_enabled (im, spd, policy))
232 if (policy->policy == IPSEC_POLICY_ACTION_PROTECT)
234 index_t sa_index = ipsec_sa_find_and_lock (policy->sa_id);
236 if (INDEX_INVALID == sa_index)
237 return VNET_API_ERROR_SYSCALL_ERROR_1;
238 policy->sa_index = sa_index;
239 ipsec_sa_unlock_id (policy->sa_id);
242 policy->sa_index = INDEX_INVALID;
244 return ipsec_fp_add_del_policy ((void *) &spd->fp_spd, policy, 0,
248 vec_foreach_index (ii, (spd->policies[policy->type]))
250 vp = pool_elt_at_index (im->policies,
251 spd->policies[policy->type][ii]);
252 if (ipsec_policy_is_equal (vp, policy))
254 vec_delete (spd->policies[policy->type], 1, ii);
255 ipsec_sa_unlock (vp->sa_index);
256 pool_put (im->policies, vp);
265 static_always_inline void
266 ipsec_fp_release_mask_type (ipsec_main_t *im, u32 mask_type_index)
268 ipsec_fp_mask_type_entry_t *mte =
269 pool_elt_at_index (im->fp_mask_types, mask_type_index);
271 if (mte->refcount == 0)
273 /* this entry is not in use anymore */
274 ASSERT (clib_memset (mte, 0xae, sizeof (*mte)) == EOK);
275 pool_put (im->fp_mask_types, mte);
279 static_always_inline u32
280 find_mask_type_index (ipsec_main_t *im, ipsec_fp_5tuple_t *mask)
282 ipsec_fp_mask_type_entry_t *mte;
284 pool_foreach (mte, im->fp_mask_types)
286 if (memcmp (&mte->mask, mask, sizeof (*mask)) == 0)
287 return (mte - im->fp_mask_types);
293 static_always_inline void
294 fill_ip6_hash_policy_kv (ipsec_fp_5tuple_t *match, ipsec_fp_5tuple_t *mask,
295 clib_bihash_kv_40_8_t *kv)
297 ipsec_fp_lookup_value_t *kv_val = (ipsec_fp_lookup_value_t *) &kv->value;
298 u64 *pmatch = (u64 *) match->kv_40_8.key;
299 u64 *pmask = (u64 *) mask->kv_40_8.key;
300 u64 *pkey = (u64 *) kv->key;
302 *pkey++ = *pmatch++ & *pmask++;
303 *pkey++ = *pmatch++ & *pmask++;
304 *pkey++ = *pmatch++ & *pmask++;
305 *pkey++ = *pmatch++ & *pmask++;
306 *pkey = *pmatch & *pmask;
311 static_always_inline void
312 fill_ip4_hash_policy_kv (ipsec_fp_5tuple_t *match, ipsec_fp_5tuple_t *mask,
313 clib_bihash_kv_16_8_t *kv)
315 ipsec_fp_lookup_value_t *kv_val = (ipsec_fp_lookup_value_t *) &kv->value;
316 u64 *pmatch = (u64 *) match->kv_16_8.key;
317 u64 *pmask = (u64 *) mask->kv_16_8.key;
318 u64 *pkey = (u64 *) kv->key;
320 *pkey++ = *pmatch++ & *pmask++;
321 *pkey = *pmatch & *pmask;
326 static_always_inline u16
327 mask_out_highest_set_bit_u16 (u16 x)
336 static_always_inline u32
337 mask_out_highest_set_bit_u32 (u32 x)
347 static_always_inline u64
348 mask_out_highest_set_bit_u64 (u64 x)
359 static_always_inline void
360 ipsec_fp_get_policy_ports_mask (ipsec_policy_t *policy,
361 ipsec_fp_5tuple_t *mask)
363 if (PREDICT_TRUE ((policy->protocol == IP_PROTOCOL_TCP) ||
364 (policy->protocol == IP_PROTOCOL_UDP) ||
365 (policy->protocol == IP_PROTOCOL_SCTP)))
367 mask->lport = policy->lport.start ^ policy->lport.stop;
368 mask->rport = policy->rport.start ^ policy->rport.stop;
370 mask->lport = mask_out_highest_set_bit_u16 (mask->lport);
372 mask->rport = mask_out_highest_set_bit_u16 (mask->rport);
380 mask->protocol = (policy->protocol == IPSEC_POLICY_PROTOCOL_ANY) ? 0 : ~0;
384 static_always_inline void
385 ipsec_fp_ip4_get_policy_mask (ipsec_policy_t *policy, ipsec_fp_5tuple_t *mask,
388 u32 *pladdr_start = (u32 *) &policy->laddr.start.ip4;
389 u32 *pladdr_stop = (u32 *) &policy->laddr.stop.ip4;
390 u32 *plmask = (u32 *) &mask->laddr;
391 u32 *praddr_start = (u32 *) &policy->raddr.start.ip4;
392 u32 *praddr_stop = (u32 *) &policy->raddr.stop.ip4;
393 u32 *prmask = (u32 *) &mask->raddr;
395 clib_memset_u8 (mask, 0xff, sizeof (ipsec_fp_5tuple_t));
396 clib_memset_u8 (&mask->l3_zero_pad, 0, sizeof (mask->l3_zero_pad));
398 /* find bits where start != stop */
399 *plmask = *pladdr_start ^ *pladdr_stop;
400 *prmask = *praddr_start ^ *praddr_stop;
401 /* Find most significant bit set (that is the first position
402 * start differs from stop). Mask out everything after that bit and
403 * the bit itself. Remember that policy stores start and stop in the net
406 *plmask = clib_host_to_net_u32 (
407 mask_out_highest_set_bit_u32 (clib_net_to_host_u32 (*plmask)));
409 *prmask = clib_host_to_net_u32 (
410 mask_out_highest_set_bit_u32 (clib_net_to_host_u32 (*prmask)));
414 if (policy->type != IPSEC_SPD_POLICY_IP4_INBOUND_PROTECT)
422 ipsec_fp_get_policy_ports_mask (policy, mask);
426 static_always_inline void
427 ipsec_fp_ip6_get_policy_mask (ipsec_policy_t *policy, ipsec_fp_5tuple_t *mask,
430 u64 *pladdr_start = (u64 *) &policy->laddr.start;
431 u64 *pladdr_stop = (u64 *) &policy->laddr.stop;
432 u64 *plmask = (u64 *) &mask->ip6_laddr;
433 u64 *praddr_start = (u64 *) &policy->raddr.start;
434 u64 *praddr_stop = (u64 *) &policy->raddr.stop;
435 u64 *prmask = (u64 *) &mask->ip6_raddr;
437 clib_memset_u8 (mask, 0xff, sizeof (ipsec_fp_5tuple_t));
439 *plmask = (*pladdr_start++ ^ *pladdr_stop++);
441 *prmask = (*praddr_start++ ^ *praddr_stop++);
443 /* Find most significant bit set (that is the first position
444 * start differs from stop). Mask out everything after that bit and
445 * the bit itself. Remember that policy stores start and stop in the net
448 *plmask = clib_host_to_net_u64 (
449 mask_out_highest_set_bit_u64 (clib_net_to_host_u64 (*plmask)));
451 if (*plmask++ & clib_host_to_net_u64 (0x1))
453 *plmask = (*pladdr_start ^ *pladdr_stop);
454 *plmask = clib_host_to_net_u64 (
455 mask_out_highest_set_bit_u64 (clib_net_to_host_u64 (*plmask)));
460 *prmask = clib_host_to_net_u64 (
461 mask_out_highest_set_bit_u64 (clib_net_to_host_u64 (*prmask)));
463 if (*prmask++ & clib_host_to_net_u64 (0x1))
465 *prmask = (*pladdr_start ^ *pladdr_stop);
466 *prmask = clib_host_to_net_u64 (
467 mask_out_highest_set_bit_u64 (clib_net_to_host_u64 (*prmask)));
474 if (policy->type != IPSEC_SPD_POLICY_IP4_INBOUND_PROTECT)
482 ipsec_fp_get_policy_ports_mask (policy, mask);
486 static_always_inline void
487 ipsec_fp_get_policy_5tuple (ipsec_policy_t *policy, ipsec_fp_5tuple_t *tuple,
490 memset (tuple, 0, sizeof (*tuple));
491 tuple->is_ipv6 = policy->is_ipv6;
494 tuple->ip6_laddr = policy->laddr.start.ip6;
495 tuple->ip6_raddr = policy->raddr.start.ip6;
499 tuple->laddr = policy->laddr.start.ip4;
500 tuple->raddr = policy->raddr.start.ip4;
506 if ((policy->type == IPSEC_SPD_POLICY_IP4_INBOUND_PROTECT ||
507 policy->type == IPSEC_SPD_POLICY_IP6_INBOUND_PROTECT) &&
508 policy->sa_index != INDEX_INVALID)
510 ipsec_sa_t *s = ipsec_sa_get (policy->sa_index);
514 tuple->spi = INDEX_INVALID;
515 tuple->action = policy->type;
519 tuple->protocol = policy->protocol;
521 tuple->lport = policy->lport.start;
522 tuple->rport = policy->rport.start;
525 static_always_inline int
526 ipsec_fp_mask_type_idx_cmp (ipsec_fp_mask_id_t *mask_id, u32 *idx)
528 return mask_id->mask_type_idx == *idx;
532 ipsec_fp_ip4_add_policy (ipsec_main_t *im, ipsec_spd_fp_t *fp_spd,
533 ipsec_policy_t *policy, u32 *stat_index)
535 u32 mask_index, searched_idx;
537 ipsec_fp_mask_type_entry_t *mte;
539 clib_bihash_kv_16_8_t kv;
540 clib_bihash_kv_16_8_t result;
541 ipsec_fp_lookup_value_t *result_val =
542 (ipsec_fp_lookup_value_t *) &result.value;
543 ipsec_fp_lookup_value_t *key_val = (ipsec_fp_lookup_value_t *) &kv.value;
545 ipsec_fp_5tuple_t mask, policy_5tuple;
547 bool inbound = ipsec_is_policy_inbound (policy);
548 clib_bihash_16_8_t *bihash_table =
549 inbound ? pool_elt_at_index (im->fp_ip4_lookup_hashes_pool,
550 fp_spd->ip4_in_lookup_hash_idx) :
551 pool_elt_at_index (im->fp_ip4_lookup_hashes_pool,
552 fp_spd->ip4_out_lookup_hash_idx);
554 ipsec_fp_ip4_get_policy_mask (policy, &mask, inbound);
555 pool_get (im->policies, vp);
556 policy_index = vp - im->policies;
557 vlib_validate_combined_counter (&ipsec_spd_policy_counters, policy_index);
558 vlib_zero_combined_counter (&ipsec_spd_policy_counters, policy_index);
559 *stat_index = policy_index;
560 mask_index = find_mask_type_index (im, &mask);
562 if (mask_index == ~0)
564 /* mask type not found, we need to create a new entry */
565 pool_get (im->fp_mask_types, mte);
566 mask_index = mte - im->fp_mask_types;
570 mte = im->fp_mask_types + mask_index;
572 policy->fp_mask_type_id = mask_index;
573 ipsec_fp_get_policy_5tuple (policy, &policy_5tuple, inbound);
575 fill_ip4_hash_policy_kv (&policy_5tuple, &mask, &kv);
577 res = clib_bihash_search_inline_2_16_8 (bihash_table, &kv, &result);
580 /* key was not found crate a new entry */
581 vec_add1 (key_val->fp_policies_ids, policy_index);
582 res = clib_bihash_add_del_16_8 (bihash_table, &kv, 1);
590 if (vec_max_len (result_val->fp_policies_ids) !=
591 vec_len (result_val->fp_policies_ids))
593 /* no need to resize */
594 vec_add1 (result_val->fp_policies_ids, policy_index);
598 vec_add1 (result_val->fp_policies_ids, policy_index);
600 res = clib_bihash_add_del_16_8 (bihash_table, &result, 1);
607 if (mte->refcount == 0)
609 clib_memcpy (&mte->mask, &mask, sizeof (mask));
614 vec_search_with_function (fp_spd->fp_mask_ids[policy->type], &mask_index,
615 ipsec_fp_mask_type_idx_cmp);
616 if (~0 == searched_idx)
618 ipsec_fp_mask_id_t mask_id = { mask_index, 1 };
619 vec_add1 (fp_spd->fp_mask_ids[policy->type], mask_id);
622 (fp_spd->fp_mask_ids[policy->type] + searched_idx)->refcount++;
625 vec_add1 (fp_spd->fp_policies[policy->type], policy_index);
626 clib_memcpy (vp, policy, sizeof (*vp));
631 pool_put (im->policies, vp);
632 ipsec_fp_release_mask_type (im, mask_index);
637 ipsec_fp_ip6_add_policy (ipsec_main_t *im, ipsec_spd_fp_t *fp_spd,
638 ipsec_policy_t *policy, u32 *stat_index)
641 u32 mask_index, searched_idx;
643 ipsec_fp_mask_type_entry_t *mte;
645 clib_bihash_kv_40_8_t kv;
646 clib_bihash_kv_40_8_t result;
647 ipsec_fp_lookup_value_t *result_val =
648 (ipsec_fp_lookup_value_t *) &result.value;
649 ipsec_fp_lookup_value_t *key_val = (ipsec_fp_lookup_value_t *) &kv.value;
651 ipsec_fp_5tuple_t mask, policy_5tuple;
653 bool inbound = ipsec_is_policy_inbound (policy);
655 ipsec_fp_ip6_get_policy_mask (policy, &mask, inbound);
656 pool_get (im->policies, vp);
657 policy_index = vp - im->policies;
658 vlib_validate_combined_counter (&ipsec_spd_policy_counters, policy_index);
659 vlib_zero_combined_counter (&ipsec_spd_policy_counters, policy_index);
660 *stat_index = policy_index;
661 mask_index = find_mask_type_index (im, &mask);
662 clib_bihash_40_8_t *bihash_table =
663 inbound ? pool_elt_at_index (im->fp_ip6_lookup_hashes_pool,
664 fp_spd->ip6_in_lookup_hash_idx) :
665 pool_elt_at_index (im->fp_ip6_lookup_hashes_pool,
666 fp_spd->ip6_out_lookup_hash_idx);
668 if (mask_index == ~0)
670 /* mask type not found, we need to create a new entry */
671 pool_get (im->fp_mask_types, mte);
672 mask_index = mte - im->fp_mask_types;
676 mte = im->fp_mask_types + mask_index;
678 policy->fp_mask_type_id = mask_index;
679 ipsec_fp_get_policy_5tuple (policy, &policy_5tuple, inbound);
681 fill_ip6_hash_policy_kv (&policy_5tuple, &mask, &kv);
683 res = clib_bihash_search_inline_2_40_8 (bihash_table, &kv, &result);
686 /* key was not found crate a new entry */
687 vec_add1 (key_val->fp_policies_ids, policy_index);
688 res = clib_bihash_add_del_40_8 (bihash_table, &kv, 1);
695 if (vec_max_len (result_val->fp_policies_ids) !=
696 vec_len (result_val->fp_policies_ids))
698 /* no need to resize */
699 vec_add1 (result_val->fp_policies_ids, policy_index);
703 vec_add1 (result_val->fp_policies_ids, policy_index);
705 res = clib_bihash_add_del_40_8 (bihash_table, &result, 1);
712 if (mte->refcount == 0)
714 clib_memcpy (&mte->mask, &mask, sizeof (mask));
719 vec_search_with_function (fp_spd->fp_mask_ids[policy->type], &mask_index,
720 ipsec_fp_mask_type_idx_cmp);
721 if (~0 == searched_idx)
723 ipsec_fp_mask_id_t mask_id = { mask_index, 1 };
724 vec_add1 (fp_spd->fp_mask_ids[policy->type], mask_id);
727 (fp_spd->fp_mask_ids[policy->type] + searched_idx)->refcount++;
730 vec_add1 (fp_spd->fp_policies[policy->type], policy_index);
731 clib_memcpy (vp, policy, sizeof (*vp));
736 pool_put (im->policies, vp);
737 ipsec_fp_release_mask_type (im, mask_index);
742 ipsec_fp_ip6_del_policy (ipsec_main_t *im, ipsec_spd_fp_t *fp_spd,
743 ipsec_policy_t *policy)
746 ipsec_fp_5tuple_t mask = { 0 }, policy_5tuple;
747 clib_bihash_kv_40_8_t kv;
748 clib_bihash_kv_40_8_t result;
749 ipsec_fp_lookup_value_t *result_val =
750 (ipsec_fp_lookup_value_t *) &result.value;
751 bool inbound = ipsec_is_policy_inbound (policy);
752 clib_bihash_40_8_t *bihash_table =
753 inbound ? pool_elt_at_index (im->fp_ip6_lookup_hashes_pool,
754 fp_spd->ip6_in_lookup_hash_idx) :
755 pool_elt_at_index (im->fp_ip6_lookup_hashes_pool,
756 fp_spd->ip6_out_lookup_hash_idx);
761 ipsec_fp_ip6_get_policy_mask (policy, &mask, inbound);
762 ipsec_fp_get_policy_5tuple (policy, &policy_5tuple, inbound);
763 fill_ip6_hash_policy_kv (&policy_5tuple, &mask, &kv);
764 res = clib_bihash_search_inline_2_40_8 (bihash_table, &kv, &result);
769 vec_foreach_index (ii, result_val->fp_policies_ids)
772 pool_elt_at_index (im->policies, *(result_val->fp_policies_ids + ii));
773 if (ipsec_policy_is_equal (vp, policy))
775 vec_foreach_index (iii, fp_spd->fp_policies[policy->type])
777 if (*(fp_spd->fp_policies[policy->type] + iii) ==
778 *(result_val->fp_policies_ids + ii))
780 if (vec_len (result_val->fp_policies_ids) == 1)
782 vec_free (result_val->fp_policies_ids);
783 clib_bihash_add_del_40_8 (bihash_table, &result, 0);
787 vec_del1 (result_val->fp_policies_ids, ii);
789 vec_del1 (fp_spd->fp_policies[policy->type], iii);
791 vec_foreach_index (imt, fp_spd->fp_mask_ids[policy->type])
793 if ((fp_spd->fp_mask_ids[policy->type] + imt)
794 ->mask_type_idx == vp->fp_mask_type_id)
797 if ((fp_spd->fp_mask_ids[policy->type] + imt)
799 vec_del1 (fp_spd->fp_mask_ids[policy->type], imt);
814 ipsec_fp_release_mask_type (im, vp->fp_mask_type_id);
815 ipsec_sa_unlock (vp->sa_index);
816 pool_put (im->policies, vp);
825 ipsec_fp_ip4_del_policy (ipsec_main_t *im, ipsec_spd_fp_t *fp_spd,
826 ipsec_policy_t *policy)
829 ipsec_fp_5tuple_t mask = { 0 }, policy_5tuple;
830 clib_bihash_kv_16_8_t kv;
831 clib_bihash_kv_16_8_t result;
832 ipsec_fp_lookup_value_t *result_val =
833 (ipsec_fp_lookup_value_t *) &result.value;
834 bool inbound = ipsec_is_policy_inbound (policy);
837 clib_bihash_16_8_t *bihash_table =
838 inbound ? pool_elt_at_index (im->fp_ip4_lookup_hashes_pool,
839 fp_spd->ip4_in_lookup_hash_idx) :
840 pool_elt_at_index (im->fp_ip4_lookup_hashes_pool,
841 fp_spd->ip4_out_lookup_hash_idx);
843 ipsec_fp_ip4_get_policy_mask (policy, &mask, inbound);
844 ipsec_fp_get_policy_5tuple (policy, &policy_5tuple, inbound);
845 fill_ip4_hash_policy_kv (&policy_5tuple, &mask, &kv);
846 res = clib_bihash_search_inline_2_16_8 (bihash_table, &kv, &result);
852 vec_foreach_index (ii, result_val->fp_policies_ids)
855 pool_elt_at_index (im->policies, *(result_val->fp_policies_ids + ii));
856 if (ipsec_policy_is_equal (vp, policy))
858 vec_foreach_index (iii, fp_spd->fp_policies[policy->type])
860 if (*(fp_spd->fp_policies[policy->type] + iii) ==
861 *(result_val->fp_policies_ids + ii))
863 if (vec_len (result_val->fp_policies_ids) == 1)
865 vec_free (result_val->fp_policies_ids);
866 clib_bihash_add_del_16_8 (bihash_table, &result, 0);
870 vec_del1 (result_val->fp_policies_ids, ii);
872 vec_del1 (fp_spd->fp_policies[policy->type], iii);
874 vec_foreach_index (imt, fp_spd->fp_mask_ids[policy->type])
876 if ((fp_spd->fp_mask_ids[policy->type] + imt)
877 ->mask_type_idx == vp->fp_mask_type_id)
880 if ((fp_spd->fp_mask_ids[policy->type] + imt)
882 vec_del1 (fp_spd->fp_mask_ids[policy->type], imt);
897 ipsec_fp_release_mask_type (im, vp->fp_mask_type_id);
898 ipsec_sa_unlock (vp->sa_index);
899 pool_put (im->policies, vp);
908 ipsec_fp_add_del_policy (void *fp_spd, ipsec_policy_t *policy, int is_add,
911 ipsec_main_t *im = &ipsec_main;
915 return ipsec_fp_ip6_add_policy (im, (ipsec_spd_fp_t *) fp_spd, policy,
918 return ipsec_fp_ip4_add_policy (im, (ipsec_spd_fp_t *) fp_spd, policy,
921 else if (policy->is_ipv6)
923 return ipsec_fp_ip6_del_policy (im, (ipsec_spd_fp_t *) fp_spd, policy);
925 return ipsec_fp_ip4_del_policy (im, (ipsec_spd_fp_t *) fp_spd, policy);
929 * fd.io coding-style-patch-verification: ON
932 * eval: (c-set-style "gnu")