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.
18 #define IPSEC_FLAG_IPSEC_GRE_TUNNEL (1 << 0)
20 #define foreach_ipsec_policy_action \
21 _(0, BYPASS, "bypass") \
22 _(1, DISCARD, "discard") \
23 _(2, RESOLVE, "resolve") \
24 _(3, PROTECT, "protect")
28 #define _(v,f,s) IPSEC_POLICY_ACTION_##f = v,
29 foreach_ipsec_policy_action
31 IPSEC_POLICY_N_ACTION,
32 } ipsec_policy_action_t;
35 #define foreach_ipsec_crypto_alg \
37 _(1, AES_CBC_128, "aes-cbc-128") \
38 _(2, AES_CBC_192, "aes-cbc-192") \
39 _(3, AES_CBC_256, "aes-cbc-256") \
40 _(4, AES_GCM_128, "aes-gcm-128")
42 #define foreach_ipsec_crypto_alg \
44 _(1, AES_CBC_128, "aes-cbc-128") \
45 _(2, AES_CBC_192, "aes-cbc-192") \
46 _(3, AES_CBC_256, "aes-cbc-256")
51 #define _(v,f,s) IPSEC_CRYPTO_ALG_##f = v,
52 foreach_ipsec_crypto_alg
58 #define foreach_ipsec_integ_alg \
60 _(1, MD5_96, "md5-96") /* RFC2403 */ \
61 _(2, SHA1_96, "sha1-96") /* RFC2404 */ \
62 _(3, SHA_256_96, "sha-256-96") /* draft-ietf-ipsec-ciph-sha-256-00 */ \
63 _(4, SHA_256_128, "sha-256-128") /* RFC4868 */ \
64 _(5, SHA_384_192, "sha-384-192") /* RFC4868 */ \
65 _(6, SHA_512_256, "sha-512-256") /* RFC4868 */ \
66 _(7, AES_GCM_128, "aes-gcm-128")
68 #define foreach_ipsec_integ_alg \
70 _(1, MD5_96, "md5-96") /* RFC2403 */ \
71 _(2, SHA1_96, "sha1-96") /* RFC2404 */ \
72 _(3, SHA_256_96, "sha-256-96") /* draft-ietf-ipsec-ciph-sha-256-00 */ \
73 _(4, SHA_256_128, "sha-256-128") /* RFC4868 */ \
74 _(5, SHA_384_192, "sha-384-192") /* RFC4868 */ \
75 _(6, SHA_512_256, "sha-512-256") /* RFC4868 */
80 #define _(v,f,s) IPSEC_INTEG_ALG_##f = v,
81 foreach_ipsec_integ_alg
88 IPSEC_PROTOCOL_AH = 0,
89 IPSEC_PROTOCOL_ESP = 1
96 ipsec_protocol_t protocol;
98 ipsec_crypto_alg_t crypto_alg;
102 ipsec_integ_alg_t integ_alg;
111 ip46_address_t tunnel_src_addr;
112 ip46_address_t tunnel_dst_addr;
126 ip46_address_t start, stop;
127 } ip46_address_range_t;
139 ip4_address_t local_ip, remote_ip;
142 ipsec_crypto_alg_t crypto_alg;
143 u8 local_crypto_key_len;
144 u8 local_crypto_key[128];
145 u8 remote_crypto_key_len;
146 u8 remote_crypto_key[128];
147 ipsec_integ_alg_t integ_alg;
148 u8 local_integ_key_len;
149 u8 local_integ_key[128];
150 u8 remote_integ_key_len;
151 u8 remote_integ_key[128];
152 } ipsec_add_del_tunnel_args_t;
159 ip4_address_t local_ip;
160 ip4_address_t remote_ip;
161 } ipsec_add_del_ipsec_gre_tunnel_args_t;
165 IPSEC_IF_SET_KEY_TYPE_NONE,
166 IPSEC_IF_SET_KEY_TYPE_LOCAL_CRYPTO,
167 IPSEC_IF_SET_KEY_TYPE_REMOTE_CRYPTO,
168 IPSEC_IF_SET_KEY_TYPE_LOCAL_INTEG,
169 IPSEC_IF_SET_KEY_TYPE_REMOTE_INTEG,
170 } ipsec_if_set_key_type_t;
180 ip46_address_range_t laddr;
181 ip46_address_range_t raddr;
192 vlib_counter_t counter;
198 /* pool of policies */
199 ipsec_policy_t *policies;
200 /* vectors of policy indices */
201 u32 *ipv4_outbound_policies;
202 u32 *ipv6_outbound_policies;
203 u32 *ipv4_inbound_protect_policy_indices;
204 u32 *ipv4_inbound_policy_discard_and_bypass_indices;
205 u32 *ipv6_inbound_protect_policy_indices;
206 u32 *ipv6_inbound_policy_discard_and_bypass_indices;
212 } ip4_ipsec_config_t;
217 } ip6_ipsec_config_t;
228 /* pool of tunnel instances */
232 /* pool of tunnel interfaces */
233 ipsec_tunnel_if_t *tunnel_interfaces;
234 u32 *free_tunnel_if_indices;
238 uword *tunnel_index_by_key;
241 vlib_main_t *vlib_main;
242 vnet_main_t *vnet_main;
244 /* next node indices */
245 u32 feature_next_node_index[32];
248 uword *spd_index_by_spd_id;
249 uword *spd_index_by_sw_if_index;
250 uword *sa_index_by_sa_id;
251 uword *ipsec_if_pool_index_by_key;
254 u32 error_drop_node_index;
255 u32 ip4_lookup_node_index;
256 u32 esp_encrypt_node_index;
260 ipsec_main_t ipsec_main;
262 extern vlib_node_registration_t esp_encrypt_node;
263 extern vlib_node_registration_t esp_decrypt_node;
264 extern vlib_node_registration_t ipsec_if_output_node;
265 extern vlib_node_registration_t ipsec_if_input_node;
271 int ipsec_set_interface_spd (vlib_main_t * vm, u32 sw_if_index, u32 spd_id,
273 int ipsec_add_del_spd (vlib_main_t * vm, u32 spd_id, int is_add);
274 int ipsec_add_del_policy (vlib_main_t * vm, ipsec_policy_t * policy,
276 int ipsec_add_del_sa (vlib_main_t * vm, ipsec_sa_t * new_sa, int is_add);
277 int ipsec_set_sa_key (vlib_main_t * vm, ipsec_sa_t * sa_update);
279 u32 ipsec_get_sa_index_by_sa_id (u32 sa_id);
280 u8 *format_ipsec_if_output_trace (u8 * s, va_list * args);
281 u8 *format_ipsec_policy_action (u8 * s, va_list * args);
282 u8 *format_ipsec_crypto_alg (u8 * s, va_list * args);
283 u8 *format_ipsec_integ_alg (u8 * s, va_list * args);
284 u8 *format_ipsec_replay_window (u8 * s, va_list * args);
285 uword unformat_ipsec_policy_action (unformat_input_t * input, va_list * args);
286 uword unformat_ipsec_crypto_alg (unformat_input_t * input, va_list * args);
287 uword unformat_ipsec_integ_alg (unformat_input_t * input, va_list * args);
289 /*u32 ipsec_add_del_tunnel_if (vnet_main_t * vnm, ipsec_add_del_tunnel_args_t * args); */
290 int ipsec_add_del_tunnel_if (ipsec_add_del_tunnel_args_t * args);
291 int ipsec_add_del_ipsec_gre_tunnel (vnet_main_t * vnm,
292 ipsec_add_del_ipsec_gre_tunnel_args_t *
294 int ipsec_set_interface_key (vnet_main_t * vnm, u32 hw_if_index,
295 ipsec_if_set_key_type_t type, u8 alg, u8 * key);
303 ipsec_alloc_empty_buffers (vlib_main_t * vm, ipsec_main_t * im)
305 u32 cpu_index = os_get_cpu_number ();
306 uword l = vec_len (im->empty_buffers[cpu_index]);
309 if (PREDICT_FALSE (l < VLIB_FRAME_SIZE))
311 if (!im->empty_buffers[cpu_index])
313 vec_alloc (im->empty_buffers[cpu_index], 2 * VLIB_FRAME_SIZE);
316 n_alloc = vlib_buffer_alloc (vm, im->empty_buffers[cpu_index] + l,
317 2 * VLIB_FRAME_SIZE - l);
319 _vec_len (im->empty_buffers[cpu_index]) = l + n_alloc;
323 static_always_inline u32
324 get_next_output_feature_node_index (vlib_buffer_t * b,
325 vlib_node_runtime_t * nr)
328 u32 sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_TX];
329 vlib_main_t *vm = vlib_get_main ();
330 vlib_node_t *node = vlib_get_node (vm, nr->node_index);
332 vnet_feature_next (sw_if_index, &next, b);
333 return node->next_nodes[next];
336 #endif /* __IPSEC_H__ */
339 * fd.io coding-style-patch-verification: ON
342 * eval: (c-set-style "gnu")