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/crypto/crypto.h>
20 #include <vnet/feature/feature.h>
22 #include <vppinfra/types.h>
23 #include <vppinfra/cache.h>
25 #include <vnet/ipsec/ipsec_spd.h>
26 #include <vnet/ipsec/ipsec_spd_policy.h>
27 #include <vnet/ipsec/ipsec_sa.h>
29 typedef clib_error_t *(*add_del_sa_sess_cb_t) (u32 sa_index, u8 is_add);
30 typedef clib_error_t *(*check_support_cb_t) (ipsec_sa_t * sa);
35 /* add/del callback */
36 add_del_sa_sess_cb_t add_del_sa_sess_cb;
37 /* check support function */
38 check_support_cb_t check_support_cb;
39 u32 ah4_encrypt_node_index;
40 u32 ah4_decrypt_node_index;
41 u32 ah4_encrypt_next_index;
42 u32 ah4_decrypt_next_index;
43 u32 ah6_encrypt_node_index;
44 u32 ah6_decrypt_node_index;
45 u32 ah6_encrypt_next_index;
46 u32 ah6_decrypt_next_index;
52 /* add/del callback */
53 add_del_sa_sess_cb_t add_del_sa_sess_cb;
54 /* check support function */
55 check_support_cb_t check_support_cb;
56 u32 esp4_encrypt_node_index;
57 u32 esp4_decrypt_node_index;
58 u32 esp4_encrypt_next_index;
59 u32 esp4_decrypt_next_index;
60 u32 esp6_encrypt_node_index;
61 u32 esp6_decrypt_node_index;
62 u32 esp6_encrypt_next_index;
63 u32 esp6_decrypt_next_index;
64 u32 esp4_decrypt_tun_node_index;
65 u32 esp4_decrypt_tun_next_index;
66 u32 esp6_decrypt_tun_node_index;
67 u32 esp6_decrypt_tun_next_index;
68 u32 esp44_encrypt_tun_feature_index;
69 u32 esp46_encrypt_tun_feature_index;
70 u32 esp66_encrypt_tun_feature_index;
71 u32 esp64_encrypt_tun_feature_index;
72 } ipsec_esp_backend_t;
76 vnet_crypto_op_id_t enc_op_id;
77 vnet_crypto_op_id_t dec_op_id;
78 vnet_crypto_alg_t alg;
82 } ipsec_main_crypto_alg_t;
86 vnet_crypto_op_id_t op_id;
87 vnet_crypto_alg_t alg;
89 } ipsec_main_integ_alg_t;
93 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
94 vnet_crypto_op_t *crypto_ops;
95 vnet_crypto_op_t *integ_ops;
96 vnet_crypto_op_t *chained_crypto_ops;
97 vnet_crypto_op_t *chained_integ_ops;
98 vnet_crypto_op_chunk_t *chunks;
99 } ipsec_per_thread_data_t;
103 /* pool of tunnel instances */
105 /* Pool of security associations */
107 /* pool of policies */
108 ipsec_policy_t *policies;
110 uword *tunnel_index_by_key;
113 vlib_main_t *vlib_main;
114 vnet_main_t *vnet_main;
117 uword *spd_index_by_spd_id;
118 uword *spd_index_by_sw_if_index;
119 uword *sa_index_by_sa_id;
120 uword *ipsec4_if_pool_index_by_key;
121 uword *ipsec6_if_pool_index_by_key;
122 uword *ipsec_if_real_dev_by_show_dev;
123 uword *ipsec_if_by_sw_if_index;
124 uword *tun4_protect_by_key;
125 uword *tun6_protect_by_key;
128 u32 error_drop_node_index;
129 u32 esp4_encrypt_node_index;
130 u32 esp4_decrypt_node_index;
131 u32 esp4_decrypt_tun_node_index;
132 u32 ah4_encrypt_node_index;
133 u32 ah4_decrypt_node_index;
134 u32 esp6_encrypt_node_index;
135 u32 esp6_decrypt_node_index;
136 u32 esp6_decrypt_tun_node_index;
137 u32 ah6_encrypt_node_index;
138 u32 ah6_decrypt_node_index;
139 /* next node indices */
140 u32 esp4_encrypt_next_index;
141 u32 esp4_decrypt_next_index;
142 u32 esp4_decrypt_tun_next_index;
143 u32 ah4_encrypt_next_index;
144 u32 ah4_decrypt_next_index;
145 u32 esp6_encrypt_next_index;
146 u32 esp6_decrypt_next_index;
147 u32 esp6_decrypt_tun_next_index;
148 u32 ah6_encrypt_next_index;
149 u32 ah6_decrypt_next_index;
151 /* tun encrypt arcs and feature nodes */
152 u32 esp44_encrypt_tun_feature_index;
153 u32 esp64_encrypt_tun_feature_index;
154 u32 esp46_encrypt_tun_feature_index;
155 u32 esp66_encrypt_tun_feature_index;
157 /* tun nodes to drop packets when no crypto alg set on outbound SA */
158 u32 esp4_no_crypto_tun_feature_index;
159 u32 esp6_no_crypto_tun_feature_index;
161 /* pool of ah backends */
162 ipsec_ah_backend_t *ah_backends;
163 /* pool of esp backends */
164 ipsec_esp_backend_t *esp_backends;
165 /* index of current ah backend */
166 u32 ah_current_backend;
167 /* index of current esp backend */
168 u32 esp_current_backend;
169 /* index of default ah backend */
170 u32 ah_default_backend;
171 /* index of default esp backend */
172 u32 esp_default_backend;
174 /* crypto alg data */
175 ipsec_main_crypto_alg_t *crypto_algs;
177 /* crypto integ data */
178 ipsec_main_integ_alg_t *integ_algs;
180 /* per-thread data */
181 ipsec_per_thread_data_t *ptd;
183 /** Worker handoff */
184 u32 ah4_enc_fq_index;
185 u32 ah4_dec_fq_index;
186 u32 ah6_enc_fq_index;
187 u32 ah6_dec_fq_index;
189 u32 esp4_enc_fq_index;
190 u32 esp4_dec_fq_index;
191 u32 esp6_enc_fq_index;
192 u32 esp6_dec_fq_index;
193 u32 esp4_enc_tun_fq_index;
194 u32 esp6_enc_tun_fq_index;
195 u32 esp4_dec_tun_fq_index;
196 u32 esp6_dec_tun_fq_index;
199 typedef enum ipsec_format_flags_t_
201 IPSEC_FORMAT_BRIEF = 0,
202 IPSEC_FORMAT_DETAIL = (1 << 0),
203 IPSEC_FORMAT_INSECURE = (1 << 1),
204 } ipsec_format_flags_t;
206 extern ipsec_main_t ipsec_main;
208 clib_error_t *ipsec_add_del_sa_sess_cb (ipsec_main_t * im, u32 sa_index,
211 clib_error_t *ipsec_check_support_cb (ipsec_main_t * im, ipsec_sa_t * sa);
213 extern vlib_node_registration_t ah4_encrypt_node;
214 extern vlib_node_registration_t ah4_decrypt_node;
215 extern vlib_node_registration_t ah6_encrypt_node;
216 extern vlib_node_registration_t ah6_decrypt_node;
217 extern vlib_node_registration_t esp4_encrypt_node;
218 extern vlib_node_registration_t esp4_decrypt_node;
219 extern vlib_node_registration_t esp6_encrypt_node;
220 extern vlib_node_registration_t esp6_decrypt_node;
221 extern vlib_node_registration_t esp4_encrypt_tun_node;
222 extern vlib_node_registration_t esp6_encrypt_tun_node;
223 extern vlib_node_registration_t esp4_decrypt_tun_node;
224 extern vlib_node_registration_t esp6_decrypt_tun_node;
225 extern vlib_node_registration_t ipsec4_if_input_node;
226 extern vlib_node_registration_t ipsec6_if_input_node;
231 u8 *format_ipsec_replay_window (u8 * s, va_list * args);
237 static_always_inline u32
238 get_next_output_feature_node_index (vlib_buffer_t * b,
239 vlib_node_runtime_t * nr)
242 vlib_main_t *vm = vlib_get_main ();
243 vlib_node_t *node = vlib_get_node (vm, nr->node_index);
245 vnet_feature_next (&next, b);
246 return node->next_nodes[next];
249 u32 ipsec_register_ah_backend (vlib_main_t * vm, ipsec_main_t * im,
251 const char *ah4_encrypt_node_name,
252 const char *ah4_decrypt_node_name,
253 const char *ah6_encrypt_node_name,
254 const char *ah6_decrypt_node_name,
255 check_support_cb_t ah_check_support_cb,
256 add_del_sa_sess_cb_t ah_add_del_sa_sess_cb);
258 u32 ipsec_register_esp_backend (vlib_main_t * vm, ipsec_main_t * im,
260 const char *esp4_encrypt_node_name,
261 const char *esp4_encrypt_tun_node_name,
262 const char *esp4_decrypt_node_name,
263 const char *esp4_decrypt_tun_node_name,
264 const char *esp6_encrypt_node_name,
265 const char *esp6_encrypt_tun_node_name,
266 const char *esp6_decrypt_node_name,
267 const char *esp6_decrypt_tun_node_name,
268 check_support_cb_t esp_check_support_cb,
269 add_del_sa_sess_cb_t esp_add_del_sa_sess_cb);
271 int ipsec_select_ah_backend (ipsec_main_t * im, u32 ah_backend_idx);
272 int ipsec_select_esp_backend (ipsec_main_t * im, u32 esp_backend_idx);
274 clib_error_t *ipsec_rsc_in_use (ipsec_main_t * im);
276 always_inline ipsec_sa_t *
277 ipsec_sa_get (u32 sa_index)
279 return (pool_elt_at_index (ipsec_main.sad, sa_index));
282 void ipsec_add_feature (const char *arc_name, const char *node_name,
283 u32 * out_feature_index);
286 #endif /* __IPSEC_H__ */
289 * fd.io coding-style-patch-verification: ON
292 * eval: (c-set-style "gnu")