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>
28 #include <vnet/ipsec/ipsec_if.h>
30 typedef clib_error_t *(*add_del_sa_sess_cb_t) (u32 sa_index, u8 is_add);
31 typedef clib_error_t *(*check_support_cb_t) (ipsec_sa_t * sa);
36 /* add/del callback */
37 add_del_sa_sess_cb_t add_del_sa_sess_cb;
38 /* check support function */
39 check_support_cb_t check_support_cb;
40 u32 ah4_encrypt_node_index;
41 u32 ah4_decrypt_node_index;
42 u32 ah4_encrypt_next_index;
43 u32 ah4_decrypt_next_index;
44 u32 ah6_encrypt_node_index;
45 u32 ah6_decrypt_node_index;
46 u32 ah6_encrypt_next_index;
47 u32 ah6_decrypt_next_index;
53 /* add/del callback */
54 add_del_sa_sess_cb_t add_del_sa_sess_cb;
55 /* check support function */
56 check_support_cb_t check_support_cb;
57 u32 esp4_encrypt_node_index;
58 u32 esp4_decrypt_node_index;
59 u32 esp4_encrypt_next_index;
60 u32 esp4_decrypt_next_index;
61 u32 esp6_encrypt_node_index;
62 u32 esp6_decrypt_node_index;
63 u32 esp6_encrypt_next_index;
64 u32 esp6_decrypt_next_index;
65 } ipsec_esp_backend_t;
69 vnet_crypto_op_id_t enc_op_id;
70 vnet_crypto_op_id_t dec_op_id;
74 } ipsec_main_crypto_alg_t;
78 vnet_crypto_op_id_t op_id;
80 } ipsec_main_integ_alg_t;
84 vnet_crypto_op_t *crypto_ops;
85 vnet_crypto_op_t *integ_ops;
86 } ipsec_per_thread_data_t;
90 /* pool of tunnel instances */
92 /* Pool of security associations */
94 /* pool of policies */
95 ipsec_policy_t *policies;
97 /* pool of tunnel interfaces */
98 ipsec_tunnel_if_t *tunnel_interfaces;
100 uword *tunnel_index_by_key;
103 vlib_main_t *vlib_main;
104 vnet_main_t *vnet_main;
107 uword *spd_index_by_spd_id;
108 uword *spd_index_by_sw_if_index;
109 uword *sa_index_by_sa_id;
110 uword *ipsec4_if_pool_index_by_key;
111 uword *ipsec6_if_pool_index_by_key;
112 uword *ipsec_if_real_dev_by_show_dev;
113 uword *ipsec_if_by_sw_if_index;
116 u32 error_drop_node_index;
117 u32 esp4_encrypt_node_index;
118 u32 esp4_decrypt_node_index;
119 u32 ah4_encrypt_node_index;
120 u32 ah4_decrypt_node_index;
121 u32 esp6_encrypt_node_index;
122 u32 esp6_decrypt_node_index;
123 u32 ah6_encrypt_node_index;
124 u32 ah6_decrypt_node_index;
125 /* next node indices */
126 u32 esp4_encrypt_next_index;
127 u32 esp4_decrypt_next_index;
128 u32 ah4_encrypt_next_index;
129 u32 ah4_decrypt_next_index;
130 u32 esp6_encrypt_next_index;
131 u32 esp6_decrypt_next_index;
132 u32 ah6_encrypt_next_index;
133 u32 ah6_decrypt_next_index;
135 /* pool of ah backends */
136 ipsec_ah_backend_t *ah_backends;
137 /* pool of esp backends */
138 ipsec_esp_backend_t *esp_backends;
139 /* index of current ah backend */
140 u32 ah_current_backend;
141 /* index of current esp backend */
142 u32 esp_current_backend;
143 /* index of default ah backend */
144 u32 ah_default_backend;
145 /* index of default esp backend */
146 u32 esp_default_backend;
148 /* crypto alg data */
149 ipsec_main_crypto_alg_t *crypto_algs;
151 /* crypto integ data */
152 ipsec_main_integ_alg_t *integ_algs;
154 /* per-thread data */
155 ipsec_per_thread_data_t *ptd;
158 typedef enum ipsec_format_flags_t_
160 IPSEC_FORMAT_BRIEF = 0,
161 IPSEC_FORMAT_DETAIL = (1 << 0),
162 } ipsec_format_flags_t;
164 extern ipsec_main_t ipsec_main;
166 clib_error_t *ipsec_add_del_sa_sess_cb (ipsec_main_t * im, u32 sa_index,
169 clib_error_t *ipsec_check_support_cb (ipsec_main_t * im, ipsec_sa_t * sa);
171 extern vlib_node_registration_t esp4_encrypt_node;
172 extern vlib_node_registration_t esp4_decrypt_node;
173 extern vlib_node_registration_t ah4_encrypt_node;
174 extern vlib_node_registration_t ah4_decrypt_node;
175 extern vlib_node_registration_t esp6_encrypt_node;
176 extern vlib_node_registration_t esp6_decrypt_node;
177 extern vlib_node_registration_t ah6_encrypt_node;
178 extern vlib_node_registration_t ah6_decrypt_node;
179 extern vlib_node_registration_t ipsec4_if_input_node;
180 extern vlib_node_registration_t ipsec6_if_input_node;
185 u8 *format_ipsec_replay_window (u8 * s, va_list * args);
191 static_always_inline u32
192 get_next_output_feature_node_index (vlib_buffer_t * b,
193 vlib_node_runtime_t * nr)
196 vlib_main_t *vm = vlib_get_main ();
197 vlib_node_t *node = vlib_get_node (vm, nr->node_index);
199 vnet_feature_next (&next, b);
200 return node->next_nodes[next];
203 u32 ipsec_register_ah_backend (vlib_main_t * vm, ipsec_main_t * im,
205 const char *ah4_encrypt_node_name,
206 const char *ah4_decrypt_node_name,
207 const char *ah6_encrypt_node_name,
208 const char *ah6_decrypt_node_name,
209 check_support_cb_t ah_check_support_cb,
210 add_del_sa_sess_cb_t ah_add_del_sa_sess_cb);
212 u32 ipsec_register_esp_backend (vlib_main_t * vm, ipsec_main_t * im,
214 const char *esp4_encrypt_node_name,
215 const char *esp4_decrypt_node_name,
216 const char *esp6_encrypt_node_name,
217 const char *esp6_decrypt_node_name,
218 check_support_cb_t esp_check_support_cb,
219 add_del_sa_sess_cb_t esp_add_del_sa_sess_cb);
221 int ipsec_select_ah_backend (ipsec_main_t * im, u32 ah_backend_idx);
222 int ipsec_select_esp_backend (ipsec_main_t * im, u32 esp_backend_idx);
224 always_inline ipsec_sa_t *
225 ipsec_sa_get (u32 sa_index)
227 return (pool_elt_at_index (ipsec_main.sad, sa_index));
230 #endif /* __IPSEC_H__ */
233 * fd.io coding-style-patch-verification: ON
236 * eval: (c-set-style "gnu")