summaryrefslogtreecommitdiffstats
path: root/src/vppinfra/mhash.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/vppinfra/mhash.h')
0 files changed, 0 insertions, 0 deletions
' href='#n74'>74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256
/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef __IPSEC_H__
#define __IPSEC_H__

#include <vnet/ip/ip.h>
#include <vnet/crypto/crypto.h>
#include <vnet/feature/feature.h>

#include <vppinfra/types.h>
#include <vppinfra/cache.h>

#include <vnet/ipsec/ipsec_spd.h>
#include <vnet/ipsec/ipsec_spd_policy.h>
#include <vnet/ipsec/ipsec_sa.h>

typedef clib_error_t *(*add_del_sa_sess_cb_t) (u32 sa_index, u8 is_add);
typedef clib_error_t *(*check_support_cb_t) (ipsec_sa_t * sa);

typedef struct
{
  u8 *name;
  /* add/del callback */
  add_del_sa_sess_cb_t add_del_sa_sess_cb;
  /* check support function */
  check_support_cb_t check_support_cb;
  u32 ah4_encrypt_node_index;
  u32 ah4_decrypt_node_index;
  u32 ah4_encrypt_next_index;
  u32 ah4_decrypt_next_index;
  u32 ah6_encrypt_node_index;
  u32 ah6_decrypt_node_index;
  u32 ah6_encrypt_next_index;
  u32 ah6_decrypt_next_index;
} ipsec_ah_backend_t;

typedef struct
{
  u8 *name;
  /* add/del callback */
  add_del_sa_sess_cb_t add_del_sa_sess_cb;
  /* check support function */
  check_support_cb_t check_support_cb;
  u32 esp4_encrypt_node_index;
  u32 esp4_decrypt_node_index;
  u32 esp4_encrypt_next_index;
  u32 esp4_decrypt_next_index;
  u32 esp6_encrypt_node_index;
  u32 esp6_decrypt_node_index;
  u32 esp6_encrypt_next_index;
  u32 esp6_decrypt_next_index;
  u32 esp4_encrypt_tun_feature_index;
  u32 esp6_encrypt_tun_feature_index;
} ipsec_esp_backend_t;

typedef struct
{
  vnet_crypto_op_id_t enc_op_id;
  vnet_crypto_op_id_t dec_op_id;
  vnet_crypto_alg_t alg;
  u8 iv_size;
  u8 block_size;
  u8 icv_size;
} ipsec_main_crypto_alg_t;

typedef struct
{
  vnet_crypto_op_id_t op_id;
  vnet_crypto_alg_t alg;
  u8 icv_size;
} ipsec_main_integ_alg_t;

typedef struct
{
  vnet_crypto_op_t *crypto_ops;
  vnet_crypto_op_t *integ_ops;
} ipsec_per_thread_data_t;

typedef struct
{
  /* pool of tunnel instances */
  ipsec_spd_t *spds;
  /* Pool of security associations */
  ipsec_sa_t *sad;
  /* pool of policies */
  ipsec_policy_t *policies;

  uword *tunnel_index_by_key;

  /* convenience */
  vlib_main_t *vlib_main;
  vnet_main_t *vnet_main;

  /* hashes */
  uword *spd_index_by_spd_id;
  uword *spd_index_by_sw_if_index;
  uword *sa_index_by_sa_id;
  uword *ipsec4_if_pool_index_by_key;
  uword *ipsec6_if_pool_index_by_key;
  uword *ipsec_if_real_dev_by_show_dev;
  uword *ipsec_if_by_sw_if_index;
  uword *tun4_protect_by_key;
  uword *tun6_protect_by_key;

  /* node indices */
  u32 error_drop_node_index;
  u32 esp4_encrypt_node_index;
  u32 esp4_decrypt_node_index;
  u32 ah4_encrypt_node_index;
  u32 ah4_decrypt_node_index;
  u32 esp6_encrypt_node_index;
  u32 esp6_decrypt_node_index;
  u32 ah6_encrypt_node_index;
  u32 ah6_decrypt_node_index;
  /* next node indices */
  u32 esp4_encrypt_next_index;
  u32 esp4_decrypt_next_index;
  u32 ah4_encrypt_next_index;
  u32 ah4_decrypt_next_index;
  u32 esp6_encrypt_next_index;
  u32 esp6_decrypt_next_index;
  u32 ah6_encrypt_next_index;
  u32 ah6_decrypt_next_index;

  /* tun encrypt arcs and feature nodes */
  u32 esp4_encrypt_tun_feature_index;
  u32 esp6_encrypt_tun_feature_index;

  /* tun nodes to drop packets when no crypto alg set on outbound SA */
  u32 esp4_no_crypto_tun_feature_index;
  u32 esp6_no_crypto_tun_feature_index;

  /* pool of ah backends */
  ipsec_ah_backend_t *ah_backends;
  /* pool of esp backends */
  ipsec_esp_backend_t *esp_backends;
  /* index of current ah backend */
  u32 ah_current_backend;
  /* index of current esp backend */
  u32 esp_current_backend;
  /* index of default ah backend */
  u32 ah_default_backend;
  /* index of default esp backend */
  u32 esp_default_backend;

  /* crypto alg data */
  ipsec_main_crypto_alg_t *crypto_algs;

  /* crypto integ data */
  ipsec_main_integ_alg_t *integ_algs;

  /* per-thread data */
  ipsec_per_thread_data_t *ptd;
} ipsec_main_t;

typedef enum ipsec_format_flags_t_
{
  IPSEC_FORMAT_BRIEF = 0,
  IPSEC_FORMAT_DETAIL = (1 << 0),
  IPSEC_FORMAT_INSECURE = (1 << 1),
} ipsec_format_flags_t;

extern ipsec_main_t ipsec_main;

clib_error_t *ipsec_add_del_sa_sess_cb (ipsec_main_t * im, u32 sa_index,
					u8 is_add);

clib_error_t *ipsec_check_support_cb (ipsec_main_t * im, ipsec_sa_t * sa);

extern vlib_node_registration_t esp4_encrypt_node;
extern vlib_node_registration_t esp4_decrypt_node;
extern vlib_node_registration_t ah4_encrypt_node;
extern vlib_node_registration_t ah4_decrypt_node;
extern vlib_node_registration_t esp6_encrypt_node;
extern vlib_node_registration_t esp6_decrypt_node;
extern vlib_node_registration_t ah6_encrypt_node;
extern vlib_node_registration_t ah6_decrypt_node;
extern vlib_node_registration_t ipsec4_if_input_node;
extern vlib_node_registration_t ipsec6_if_input_node;

/*
 * functions
 */
u8 *format_ipsec_replay_window (u8 * s, va_list * args);

/*
 *  inline functions
 */

static_always_inline u32
get_next_output_feature_node_index (vlib_buffer_t * b,
				    vlib_node_runtime_t * nr)
{
  u32 next;
  vlib_main_t *vm = vlib_get_main ();
  vlib_node_t *node = vlib_get_node (vm, nr->node_index);

  vnet_feature_next (&next, b);
  return node->next_nodes[next];
}

u32 ipsec_register_ah_backend (vlib_main_t * vm, ipsec_main_t * im,
			       const char *name,
			       const char *ah4_encrypt_node_name,
			       const char *ah4_decrypt_node_name,
			       const char *ah6_encrypt_node_name,
			       const char *ah6_decrypt_node_name,
			       check_support_cb_t ah_check_support_cb,
			       add_del_sa_sess_cb_t ah_add_del_sa_sess_cb);

u32 ipsec_register_esp_backend (vlib_main_t * vm, ipsec_main_t * im,
				const char *name,
				const char *esp4_encrypt_node_name,
				const char *esp4_encrypt_tun_node_name,
				const char *esp4_decrypt_node_name,
				const char *esp6_encrypt_node_name,
				const char *esp6_encrypt_tun_node_name,
				const char *esp6_decrypt_node_name,
				check_support_cb_t esp_check_support_cb,
				add_del_sa_sess_cb_t esp_add_del_sa_sess_cb);

int ipsec_select_ah_backend (ipsec_main_t * im, u32 ah_backend_idx);
int ipsec_select_esp_backend (ipsec_main_t * im, u32 esp_backend_idx);

clib_error_t *ipsec_rsc_in_use (ipsec_main_t * im);

always_inline ipsec_sa_t *
ipsec_sa_get (u32 sa_index)
{
  return (pool_elt_at_index (ipsec_main.sad, sa_index));
}

void ipsec_add_feature (const char *arc_name, const char *node_name,
			u32 * out_feature_index);

#endif /* __IPSEC_H__ */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */