+ 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;
+} ipsec_esp_backend_t;
+
+typedef struct
+{
+ const EVP_CIPHER *type;
+ u8 iv_size;
+ u8 block_size;
+} ipsec_proto_main_crypto_alg_t;
+
+typedef struct
+{
+ const EVP_MD *md;
+ u8 trunc_size;
+} ipsec_proto_main_integ_alg_t;
+
+typedef struct
+{
+ CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+ EVP_CIPHER_CTX *encrypt_ctx;
+#else
+ EVP_CIPHER_CTX encrypt_ctx;
+#endif
+ CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+ EVP_CIPHER_CTX *decrypt_ctx;
+#else
+ EVP_CIPHER_CTX decrypt_ctx;
+#endif
+ CLIB_CACHE_LINE_ALIGN_MARK (cacheline2);
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+ HMAC_CTX *hmac_ctx;
+#else
+ HMAC_CTX hmac_ctx;
+#endif
+ ipsec_crypto_alg_t last_encrypt_alg;
+ ipsec_crypto_alg_t last_decrypt_alg;
+ ipsec_integ_alg_t last_integ_alg;
+} ipsec_proto_main_per_thread_data_t;
+
+typedef struct
+{
+ ipsec_proto_main_crypto_alg_t *ipsec_proto_main_crypto_algs;
+ ipsec_proto_main_integ_alg_t *ipsec_proto_main_integ_algs;
+ ipsec_proto_main_per_thread_data_t *per_thread_data;
+} ipsec_proto_main_t;
+
+extern ipsec_proto_main_t ipsec_proto_main;