diff options
Diffstat (limited to 'src/plugins/crypto_openssl')
| -rw-r--r-- | src/plugins/crypto_openssl/main.c | 86 |
1 files changed, 72 insertions, 14 deletions
diff --git a/src/plugins/crypto_openssl/main.c b/src/plugins/crypto_openssl/main.c index 850ec6520d6..9a78cb46dd9 100644 --- a/src/plugins/crypto_openssl/main.c +++ b/src/plugins/crypto_openssl/main.c @@ -37,11 +37,14 @@ typedef struct static openssl_per_thread_data_t *per_thread_data = 0; #define foreach_openssl_evp_op \ - _(DES_CBC, EVP_des_cbc) \ - _(3DES_CBC, EVP_des_ede3_cbc) \ - _(AES_128_CBC, EVP_aes_128_cbc) \ - _(AES_192_CBC, EVP_aes_192_cbc) \ - _(AES_256_CBC, EVP_aes_256_cbc) + _(cbc, DES_CBC, EVP_des_cbc) \ + _(cbc, 3DES_CBC, EVP_des_ede3_cbc) \ + _(cbc, AES_128_CBC, EVP_aes_128_cbc) \ + _(cbc, AES_192_CBC, EVP_aes_192_cbc) \ + _(cbc, AES_256_CBC, EVP_aes_256_cbc) \ + _(gcm, AES_128_GCM, EVP_aes_128_gcm) \ + _(gcm, AES_192_GCM, EVP_aes_192_gcm) \ + _(gcm, AES_256_GCM, EVP_aes_256_gcm) #define foreach_openssl_hmac_op \ _(MD5, EVP_md5) \ @@ -99,6 +102,62 @@ openssl_ops_dec_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops, } static_always_inline u32 +openssl_ops_enc_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops, + const EVP_CIPHER * cipher) +{ + openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data, + vm->thread_index); + EVP_CIPHER_CTX *ctx = ptd->evp_cipher_ctx; + u32 i; + for (i = 0; i < n_ops; i++) + { + vnet_crypto_op_t *op = ops[i]; + int len; + + if (op->flags & VNET_CRYPTO_OP_FLAG_INIT_IV) + RAND_bytes (op->iv, op->iv_len); + + EVP_EncryptInit_ex (ctx, cipher, 0, 0, 0); + EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, op->iv_len, NULL); + EVP_EncryptInit_ex (ctx, 0, 0, op->key, op->iv); + EVP_EncryptUpdate (ctx, NULL, &len, op->aad, op->aad_len); + EVP_EncryptUpdate (ctx, op->dst, &len, op->src, op->len); + EVP_EncryptFinal_ex (ctx, op->dst + len, &len); + EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_GET_TAG, op->tag_len, op->tag); + op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; + } + return n_ops; +} + +static_always_inline u32 +openssl_ops_dec_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops, + const EVP_CIPHER * cipher) +{ + openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data, + vm->thread_index); + EVP_CIPHER_CTX *ctx = ptd->evp_cipher_ctx; + u32 i; + for (i = 0; i < n_ops; i++) + { + vnet_crypto_op_t *op = ops[i]; + int len; + + EVP_DecryptInit_ex (ctx, cipher, 0, 0, 0); + EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, op->iv_len, 0); + EVP_DecryptInit_ex (ctx, 0, 0, op->key, op->iv); + EVP_DecryptUpdate (ctx, 0, &len, op->aad, op->aad_len); + EVP_DecryptUpdate (ctx, op->dst, &len, op->src, op->len); + EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_TAG, op->tag_len, op->tag); + + if (EVP_DecryptFinal_ex (ctx, op->dst + len, &len) > 0) + op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; + else + op->status = VNET_CRYPTO_OP_STATUS_FAIL_DECRYPT; + } + return n_ops; +} + +static_always_inline u32 openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops, const EVP_MD * md) { @@ -111,7 +170,7 @@ openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops, { vnet_crypto_op_t *op = ops[i]; unsigned int out_len; - size_t sz = op->hmac_trunc_len ? op->hmac_trunc_len : EVP_MD_size (md); + size_t sz = op->digest_len ? op->digest_len : EVP_MD_size (md); HMAC_Init_ex (ctx, op->key, op->key_len, md, NULL); HMAC_Update (ctx, op->src, op->len); @@ -119,7 +178,7 @@ openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops, if (op->flags & VNET_CRYPTO_OP_FLAG_HMAC_CHECK) { - if ((memcmp (op->dst, buffer, sz))) + if ((memcmp (op->digest, buffer, sz))) { n_fail++; op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC; @@ -127,20 +186,20 @@ openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops, } } else - clib_memcpy_fast (op->dst, buffer, sz); + clib_memcpy_fast (op->digest, buffer, sz); op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; } return n_ops - n_fail; } -#define _(a, b) \ +#define _(m, a, b) \ static u32 \ openssl_ops_enc_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \ -{ return openssl_ops_enc_cbc (vm, ops, n_ops, b ()); } \ +{ return openssl_ops_enc_##m (vm, ops, n_ops, b ()); } \ \ u32 \ openssl_ops_dec_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \ -{ return openssl_ops_dec_cbc (vm, ops, n_ops, b ()); } +{ return openssl_ops_dec_##m (vm, ops, n_ops, b ()); } foreach_openssl_evp_op; #undef _ @@ -160,17 +219,16 @@ crypto_openssl_init (vlib_main_t * vm) vlib_thread_main_t *tm = vlib_get_thread_main (); openssl_per_thread_data_t *ptd; u8 *seed_data = 0; + clib_error_t *error; time_t t; pid_t pid; - clib_error_t *error; - if ((error = vlib_call_init_function (vm, vnet_crypto_init))) return error; u32 eidx = vnet_crypto_register_engine (vm, "openssl", 50, "OpenSSL"); -#define _(a, b) \ +#define _(m, a, b) \ vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_ENC, \ openssl_ops_enc_##a); \ vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_DEC, \ |