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 #include <vnet/ip/ip.h>
19 #include <vnet/feature/feature.h>
21 #include <openssl/hmac.h>
22 #include <openssl/rand.h>
23 #include <openssl/evp.h>
25 #include <vppinfra/types.h>
26 #include <vppinfra/cache.h>
28 #include <vnet/ipsec/ipsec_spd.h>
29 #include <vnet/ipsec/ipsec_spd_policy.h>
30 #include <vnet/ipsec/ipsec_sa.h>
31 #include <vnet/ipsec/ipsec_if.h>
33 typedef clib_error_t *(*add_del_sa_sess_cb_t) (u32 sa_index, u8 is_add);
34 typedef clib_error_t *(*check_support_cb_t) (ipsec_sa_t * sa);
39 /* add/del callback */
40 add_del_sa_sess_cb_t add_del_sa_sess_cb;
41 /* check support function */
42 check_support_cb_t check_support_cb;
43 u32 ah4_encrypt_node_index;
44 u32 ah4_decrypt_node_index;
45 u32 ah4_encrypt_next_index;
46 u32 ah4_decrypt_next_index;
47 u32 ah6_encrypt_node_index;
48 u32 ah6_decrypt_node_index;
49 u32 ah6_encrypt_next_index;
50 u32 ah6_decrypt_next_index;
56 /* add/del callback */
57 add_del_sa_sess_cb_t add_del_sa_sess_cb;
58 /* check support function */
59 check_support_cb_t check_support_cb;
60 u32 esp4_encrypt_node_index;
61 u32 esp4_decrypt_node_index;
62 u32 esp4_encrypt_next_index;
63 u32 esp4_decrypt_next_index;
64 u32 esp6_encrypt_node_index;
65 u32 esp6_decrypt_node_index;
66 u32 esp6_encrypt_next_index;
67 u32 esp6_decrypt_next_index;
68 } ipsec_esp_backend_t;
72 const EVP_CIPHER *type;
75 } ipsec_proto_main_crypto_alg_t;
81 } ipsec_proto_main_integ_alg_t;
85 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
86 #if OPENSSL_VERSION_NUMBER >= 0x10100000L
87 EVP_CIPHER_CTX *encrypt_ctx;
89 EVP_CIPHER_CTX encrypt_ctx;
91 CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
92 #if OPENSSL_VERSION_NUMBER >= 0x10100000L
93 EVP_CIPHER_CTX *decrypt_ctx;
95 EVP_CIPHER_CTX decrypt_ctx;
97 CLIB_CACHE_LINE_ALIGN_MARK (cacheline2);
98 #if OPENSSL_VERSION_NUMBER >= 0x10100000L
103 ipsec_crypto_alg_t last_encrypt_alg;
104 ipsec_crypto_alg_t last_decrypt_alg;
105 ipsec_integ_alg_t last_integ_alg;
106 } ipsec_proto_main_per_thread_data_t;
110 ipsec_proto_main_crypto_alg_t *ipsec_proto_main_crypto_algs;
111 ipsec_proto_main_integ_alg_t *ipsec_proto_main_integ_algs;
112 ipsec_proto_main_per_thread_data_t *per_thread_data;
113 } ipsec_proto_main_t;
115 extern ipsec_proto_main_t ipsec_proto_main;
119 /* pool of tunnel instances */
121 /* Pool of security associations */
123 /* pool of policies */
124 ipsec_policy_t *policies;
126 /* pool of tunnel interfaces */
127 ipsec_tunnel_if_t *tunnel_interfaces;
129 uword *tunnel_index_by_key;
132 vlib_main_t *vlib_main;
133 vnet_main_t *vnet_main;
136 uword *spd_index_by_spd_id;
137 uword *spd_index_by_sw_if_index;
138 uword *sa_index_by_sa_id;
139 uword *ipsec_if_pool_index_by_key;
140 uword *ipsec_if_real_dev_by_show_dev;
143 u32 error_drop_node_index;
144 u32 esp4_encrypt_node_index;
145 u32 esp4_decrypt_node_index;
146 u32 ah4_encrypt_node_index;
147 u32 ah4_decrypt_node_index;
148 u32 esp6_encrypt_node_index;
149 u32 esp6_decrypt_node_index;
150 u32 ah6_encrypt_node_index;
151 u32 ah6_decrypt_node_index;
152 /* next node indices */
153 u32 esp4_encrypt_next_index;
154 u32 esp4_decrypt_next_index;
155 u32 ah4_encrypt_next_index;
156 u32 ah4_decrypt_next_index;
157 u32 esp6_encrypt_next_index;
158 u32 esp6_decrypt_next_index;
159 u32 ah6_encrypt_next_index;
160 u32 ah6_decrypt_next_index;
162 /* pool of ah backends */
163 ipsec_ah_backend_t *ah_backends;
164 /* pool of esp backends */
165 ipsec_esp_backend_t *esp_backends;
166 /* index of current ah backend */
167 u32 ah_current_backend;
168 /* index of current esp backend */
169 u32 esp_current_backend;
170 /* index of default ah backend */
171 u32 ah_default_backend;
172 /* index of default esp backend */
173 u32 esp_default_backend;
176 extern ipsec_main_t ipsec_main;
178 clib_error_t *ipsec_add_del_sa_sess_cb (ipsec_main_t * im, u32 sa_index,
181 clib_error_t *ipsec_check_support_cb (ipsec_main_t * im, ipsec_sa_t * sa);
183 extern vlib_node_registration_t esp4_encrypt_node;
184 extern vlib_node_registration_t esp4_decrypt_node;
185 extern vlib_node_registration_t ah4_encrypt_node;
186 extern vlib_node_registration_t ah4_decrypt_node;
187 extern vlib_node_registration_t esp6_encrypt_node;
188 extern vlib_node_registration_t esp6_decrypt_node;
189 extern vlib_node_registration_t ah6_encrypt_node;
190 extern vlib_node_registration_t ah6_decrypt_node;
191 extern vlib_node_registration_t ipsec_if_input_node;
196 u8 *format_ipsec_replay_window (u8 * s, va_list * args);
202 static_always_inline u32
203 get_next_output_feature_node_index (vlib_buffer_t * b,
204 vlib_node_runtime_t * nr)
207 vlib_main_t *vm = vlib_get_main ();
208 vlib_node_t *node = vlib_get_node (vm, nr->node_index);
210 vnet_feature_next (&next, b);
211 return node->next_nodes[next];
214 u32 ipsec_register_ah_backend (vlib_main_t * vm, ipsec_main_t * im,
216 const char *ah4_encrypt_node_name,
217 const char *ah4_decrypt_node_name,
218 const char *ah6_encrypt_node_name,
219 const char *ah6_decrypt_node_name,
220 check_support_cb_t ah_check_support_cb,
221 add_del_sa_sess_cb_t ah_add_del_sa_sess_cb);
223 u32 ipsec_register_esp_backend (vlib_main_t * vm, ipsec_main_t * im,
225 const char *esp4_encrypt_node_name,
226 const char *esp4_decrypt_node_name,
227 const char *esp6_encrypt_node_name,
228 const char *esp6_decrypt_node_name,
229 check_support_cb_t esp_check_support_cb,
230 add_del_sa_sess_cb_t esp_add_del_sa_sess_cb);
232 int ipsec_select_ah_backend (ipsec_main_t * im, u32 ah_backend_idx);
233 int ipsec_select_esp_backend (ipsec_main_t * im, u32 esp_backend_idx);
234 #endif /* __IPSEC_H__ */
237 * fd.io coding-style-patch-verification: ON
240 * eval: (c-set-style "gnu")