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 u32 esp4_encrypt_tun_feature_index;
66 u32 esp6_encrypt_tun_feature_index;
67 } ipsec_esp_backend_t;
71 vnet_crypto_op_id_t enc_op_id;
72 vnet_crypto_op_id_t dec_op_id;
73 vnet_crypto_alg_t alg;
77 } ipsec_main_crypto_alg_t;
81 vnet_crypto_op_id_t op_id;
82 vnet_crypto_alg_t alg;
84 } ipsec_main_integ_alg_t;
88 vnet_crypto_op_t *crypto_ops;
89 vnet_crypto_op_t *integ_ops;
90 } ipsec_per_thread_data_t;
94 /* pool of tunnel instances */
96 /* Pool of security associations */
98 /* pool of policies */
99 ipsec_policy_t *policies;
101 /* pool of tunnel interfaces */
102 ipsec_tunnel_if_t *tunnel_interfaces;
104 uword *tunnel_index_by_key;
107 vlib_main_t *vlib_main;
108 vnet_main_t *vnet_main;
111 uword *spd_index_by_spd_id;
112 uword *spd_index_by_sw_if_index;
113 uword *sa_index_by_sa_id;
114 uword *ipsec4_if_pool_index_by_key;
115 uword *ipsec6_if_pool_index_by_key;
116 uword *ipsec_if_real_dev_by_show_dev;
117 uword *ipsec_if_by_sw_if_index;
118 uword *tun4_protect_by_key;
119 uword *tun6_protect_by_key;
122 u32 error_drop_node_index;
123 u32 esp4_encrypt_node_index;
124 u32 esp4_decrypt_node_index;
125 u32 ah4_encrypt_node_index;
126 u32 ah4_decrypt_node_index;
127 u32 esp6_encrypt_node_index;
128 u32 esp6_decrypt_node_index;
129 u32 ah6_encrypt_node_index;
130 u32 ah6_decrypt_node_index;
131 /* next node indices */
132 u32 esp4_encrypt_next_index;
133 u32 esp4_decrypt_next_index;
134 u32 ah4_encrypt_next_index;
135 u32 ah4_decrypt_next_index;
136 u32 esp6_encrypt_next_index;
137 u32 esp6_decrypt_next_index;
138 u32 ah6_encrypt_next_index;
139 u32 ah6_decrypt_next_index;
141 /* tun encrypt arcs and feature nodes */
142 u32 esp4_encrypt_tun_feature_index;
143 u32 esp6_encrypt_tun_feature_index;
145 /* tun nodes to drop packets when no crypto alg set on outbound SA */
146 u32 esp4_no_crypto_tun_feature_index;
147 u32 esp6_no_crypto_tun_feature_index;
149 /* pool of ah backends */
150 ipsec_ah_backend_t *ah_backends;
151 /* pool of esp backends */
152 ipsec_esp_backend_t *esp_backends;
153 /* index of current ah backend */
154 u32 ah_current_backend;
155 /* index of current esp backend */
156 u32 esp_current_backend;
157 /* index of default ah backend */
158 u32 ah_default_backend;
159 /* index of default esp backend */
160 u32 esp_default_backend;
162 /* crypto alg data */
163 ipsec_main_crypto_alg_t *crypto_algs;
165 /* crypto integ data */
166 ipsec_main_integ_alg_t *integ_algs;
168 /* per-thread data */
169 ipsec_per_thread_data_t *ptd;
172 typedef enum ipsec_format_flags_t_
174 IPSEC_FORMAT_BRIEF = 0,
175 IPSEC_FORMAT_DETAIL = (1 << 0),
176 } ipsec_format_flags_t;
178 extern ipsec_main_t ipsec_main;
180 clib_error_t *ipsec_add_del_sa_sess_cb (ipsec_main_t * im, u32 sa_index,
183 clib_error_t *ipsec_check_support_cb (ipsec_main_t * im, ipsec_sa_t * sa);
185 extern vlib_node_registration_t esp4_encrypt_node;
186 extern vlib_node_registration_t esp4_decrypt_node;
187 extern vlib_node_registration_t ah4_encrypt_node;
188 extern vlib_node_registration_t ah4_decrypt_node;
189 extern vlib_node_registration_t esp6_encrypt_node;
190 extern vlib_node_registration_t esp6_decrypt_node;
191 extern vlib_node_registration_t ah6_encrypt_node;
192 extern vlib_node_registration_t ah6_decrypt_node;
193 extern vlib_node_registration_t ipsec4_if_input_node;
194 extern vlib_node_registration_t ipsec6_if_input_node;
199 u8 *format_ipsec_replay_window (u8 * s, va_list * args);
205 static_always_inline u32
206 get_next_output_feature_node_index (vlib_buffer_t * b,
207 vlib_node_runtime_t * nr)
210 vlib_main_t *vm = vlib_get_main ();
211 vlib_node_t *node = vlib_get_node (vm, nr->node_index);
213 vnet_feature_next (&next, b);
214 return node->next_nodes[next];
217 u32 ipsec_register_ah_backend (vlib_main_t * vm, ipsec_main_t * im,
219 const char *ah4_encrypt_node_name,
220 const char *ah4_decrypt_node_name,
221 const char *ah6_encrypt_node_name,
222 const char *ah6_decrypt_node_name,
223 check_support_cb_t ah_check_support_cb,
224 add_del_sa_sess_cb_t ah_add_del_sa_sess_cb);
226 u32 ipsec_register_esp_backend (vlib_main_t * vm, ipsec_main_t * im,
228 const char *esp4_encrypt_node_name,
229 const char *esp4_encrypt_tun_node_name,
230 const char *esp4_decrypt_node_name,
231 const char *esp6_encrypt_node_name,
232 const char *esp6_encrypt_tun_node_name,
233 const char *esp6_decrypt_node_name,
234 check_support_cb_t esp_check_support_cb,
235 add_del_sa_sess_cb_t esp_add_del_sa_sess_cb);
237 int ipsec_select_ah_backend (ipsec_main_t * im, u32 ah_backend_idx);
238 int ipsec_select_esp_backend (ipsec_main_t * im, u32 esp_backend_idx);
240 clib_error_t *ipsec_rsc_in_use (ipsec_main_t * im);
242 always_inline ipsec_sa_t *
243 ipsec_sa_get (u32 sa_index)
245 return (pool_elt_at_index (ipsec_main.sad, sa_index));
248 void ipsec_add_feature (const char *arc_name, const char *node_name,
249 u32 * out_feature_index);
251 #endif /* __IPSEC_H__ */
254 * fd.io coding-style-patch-verification: ON
257 * eval: (c-set-style "gnu")