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)
21 #define foreach_ipsec_output_next \
22 _(DROP, "error-drop") \
23 _(ESP_ENCRYPT, "esp-encrypt")
25 #define _(v, s) IPSEC_OUTPUT_NEXT_##v,
28 foreach_ipsec_output_next
31 } ipsec_output_next_t;
34 #define foreach_ipsec_input_next \
35 _(DROP, "error-drop") \
36 _(ESP_DECRYPT, "esp-decrypt")
38 #define _(v, s) IPSEC_INPUT_NEXT_##v,
41 foreach_ipsec_input_next
47 #define foreach_ipsec_policy_action \
48 _(0, BYPASS, "bypass") \
49 _(1, DISCARD, "discard") \
50 _(2, RESOLVE, "resolve") \
51 _(3, PROTECT, "protect")
55 #define _(v,f,s) IPSEC_POLICY_ACTION_##f = v,
56 foreach_ipsec_policy_action
58 IPSEC_POLICY_N_ACTION,
59 } ipsec_policy_action_t;
61 #define foreach_ipsec_crypto_alg \
63 _(1, AES_CBC_128, "aes-cbc-128") \
64 _(2, AES_CBC_192, "aes-cbc-192") \
65 _(3, AES_CBC_256, "aes-cbc-256") \
66 _(4, AES_GCM_128, "aes-gcm-128")
70 #define _(v,f,s) IPSEC_CRYPTO_ALG_##f = v,
71 foreach_ipsec_crypto_alg
76 #define foreach_ipsec_integ_alg \
78 _(1, MD5_96, "md5-96") /* RFC2403 */ \
79 _(2, SHA1_96, "sha1-96") /* RFC2404 */ \
80 _(3, SHA_256_96, "sha-256-96") /* draft-ietf-ipsec-ciph-sha-256-00 */ \
81 _(4, SHA_256_128, "sha-256-128") /* RFC4868 */ \
82 _(5, SHA_384_192, "sha-384-192") /* RFC4868 */ \
83 _(6, SHA_512_256, "sha-512-256") /* RFC4868 */ \
84 _(7, AES_GCM_128, "aes-gcm-128") /* RFC4106 */
88 #define _(v,f,s) IPSEC_INTEG_ALG_##f = v,
89 foreach_ipsec_integ_alg
96 IPSEC_PROTOCOL_AH = 0,
97 IPSEC_PROTOCOL_ESP = 1
104 ipsec_protocol_t protocol;
106 ipsec_crypto_alg_t crypto_alg;
110 ipsec_integ_alg_t integ_alg;
119 ip46_address_t tunnel_src_addr;
120 ip46_address_t tunnel_dst_addr;
137 ip46_address_t start, stop;
138 } ip46_address_range_t;
150 ip4_address_t local_ip, remote_ip;
153 ipsec_crypto_alg_t crypto_alg;
154 u8 local_crypto_key_len;
155 u8 local_crypto_key[128];
156 u8 remote_crypto_key_len;
157 u8 remote_crypto_key[128];
158 ipsec_integ_alg_t integ_alg;
159 u8 local_integ_key_len;
160 u8 local_integ_key[128];
161 u8 remote_integ_key_len;
162 u8 remote_integ_key[128];
163 } ipsec_add_del_tunnel_args_t;
170 ip4_address_t local_ip;
171 ip4_address_t remote_ip;
172 } ipsec_add_del_ipsec_gre_tunnel_args_t;
176 IPSEC_IF_SET_KEY_TYPE_NONE,
177 IPSEC_IF_SET_KEY_TYPE_LOCAL_CRYPTO,
178 IPSEC_IF_SET_KEY_TYPE_REMOTE_CRYPTO,
179 IPSEC_IF_SET_KEY_TYPE_LOCAL_INTEG,
180 IPSEC_IF_SET_KEY_TYPE_REMOTE_INTEG,
181 } ipsec_if_set_key_type_t;
191 ip46_address_range_t laddr;
192 ip46_address_range_t raddr;
203 vlib_counter_t counter;
209 /* pool of policies */
210 ipsec_policy_t *policies;
211 /* vectors of policy indices */
212 u32 *ipv4_outbound_policies;
213 u32 *ipv6_outbound_policies;
214 u32 *ipv4_inbound_protect_policy_indices;
215 u32 *ipv4_inbound_policy_discard_and_bypass_indices;
216 u32 *ipv6_inbound_protect_policy_indices;
217 u32 *ipv6_inbound_policy_discard_and_bypass_indices;
223 } ip4_ipsec_config_t;
228 } ip6_ipsec_config_t;
239 i32 (*add_del_sa_sess_cb) (u32 sa_index, u8 is_add);
240 clib_error_t *(*check_support_cb) (ipsec_sa_t * sa);
241 } ipsec_main_callbacks_t;
245 /* pool of tunnel instances */
249 /* pool of tunnel interfaces */
250 ipsec_tunnel_if_t *tunnel_interfaces;
251 u32 *free_tunnel_if_indices;
255 uword *tunnel_index_by_key;
258 vlib_main_t *vlib_main;
259 vnet_main_t *vnet_main;
261 /* next node indices */
262 u32 feature_next_node_index[32];
265 uword *spd_index_by_spd_id;
266 uword *spd_index_by_sw_if_index;
267 uword *sa_index_by_sa_id;
268 uword *ipsec_if_pool_index_by_key;
271 u32 error_drop_node_index;
272 u32 esp_encrypt_node_index;
273 u32 esp_decrypt_node_index;
274 /* next node indeces */
275 u32 esp_encrypt_next_index;
276 u32 esp_decrypt_next_index;
279 ipsec_main_callbacks_t cb;
282 ipsec_main_t ipsec_main;
284 extern vlib_node_registration_t esp_encrypt_node;
285 extern vlib_node_registration_t esp_decrypt_node;
286 extern vlib_node_registration_t ipsec_if_output_node;
287 extern vlib_node_registration_t ipsec_if_input_node;
293 int ipsec_set_interface_spd (vlib_main_t * vm, u32 sw_if_index, u32 spd_id,
295 int ipsec_add_del_spd (vlib_main_t * vm, u32 spd_id, int is_add);
296 int ipsec_add_del_policy (vlib_main_t * vm, ipsec_policy_t * policy,
298 int ipsec_add_del_sa (vlib_main_t * vm, ipsec_sa_t * new_sa, int is_add);
299 int ipsec_set_sa_key (vlib_main_t * vm, ipsec_sa_t * sa_update);
301 u32 ipsec_get_sa_index_by_sa_id (u32 sa_id);
302 u8 *format_ipsec_if_output_trace (u8 * s, va_list * args);
303 u8 *format_ipsec_policy_action (u8 * s, va_list * args);
304 u8 *format_ipsec_crypto_alg (u8 * s, va_list * args);
305 u8 *format_ipsec_integ_alg (u8 * s, va_list * args);
306 u8 *format_ipsec_replay_window (u8 * s, va_list * args);
307 uword unformat_ipsec_policy_action (unformat_input_t * input, va_list * args);
308 uword unformat_ipsec_crypto_alg (unformat_input_t * input, va_list * args);
309 uword unformat_ipsec_integ_alg (unformat_input_t * input, va_list * args);
311 /*u32 ipsec_add_del_tunnel_if (vnet_main_t * vnm, ipsec_add_del_tunnel_args_t * args); */
312 int ipsec_add_del_tunnel_if (ipsec_add_del_tunnel_args_t * args);
313 int ipsec_add_del_ipsec_gre_tunnel (vnet_main_t * vnm,
314 ipsec_add_del_ipsec_gre_tunnel_args_t *
316 int ipsec_set_interface_key (vnet_main_t * vnm, u32 hw_if_index,
317 ipsec_if_set_key_type_t type, u8 alg, u8 * key);
325 ipsec_alloc_empty_buffers (vlib_main_t * vm, ipsec_main_t * im)
327 u32 thread_index = vlib_get_thread_index ();
328 uword l = vec_len (im->empty_buffers[thread_index]);
331 if (PREDICT_FALSE (l < VLIB_FRAME_SIZE))
333 if (!im->empty_buffers[thread_index])
335 vec_alloc (im->empty_buffers[thread_index], 2 * VLIB_FRAME_SIZE);
338 n_alloc = vlib_buffer_alloc (vm, im->empty_buffers[thread_index] + l,
339 2 * VLIB_FRAME_SIZE - l);
341 _vec_len (im->empty_buffers[thread_index]) = l + n_alloc;
345 static_always_inline u32
346 get_next_output_feature_node_index (vlib_buffer_t * b,
347 vlib_node_runtime_t * nr)
350 u32 sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_TX];
351 vlib_main_t *vm = vlib_get_main ();
352 vlib_node_t *node = vlib_get_node (vm, nr->node_index);
354 vnet_feature_next (sw_if_index, &next, b);
355 return node->next_nodes[next];
358 #endif /* __IPSEC_H__ */
361 * fd.io coding-style-patch-verification: ON
364 * eval: (c-set-style "gnu")