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|
/*
*------------------------------------------------------------------
* Copyright (c) 2019 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.
*------------------------------------------------------------------
*/
#include <sys/syscall.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/rand.h>
#include <openssl/sha.h>
#include <vlib/vlib.h>
#include <vnet/plugin/plugin.h>
#include <vnet/crypto/crypto.h>
#include <vpp/app/version.h>
#include <crypto_openssl/crypto_openssl.h>
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
EVP_CIPHER_CTX **evp_cipher_enc_ctx;
EVP_CIPHER_CTX **evp_cipher_dec_ctx;
HMAC_CTX **hmac_ctx;
EVP_MD_CTX *hash_ctx;
#if OPENSSL_VERSION_NUMBER < 0x10100000L
HMAC_CTX _hmac_ctx;
#endif
} openssl_per_thread_data_t;
static openssl_per_thread_data_t *per_thread_data = 0;
#define foreach_openssl_aes_evp_op \
_ (cbc, DES_CBC, EVP_des_cbc, 8) \
_ (cbc, 3DES_CBC, EVP_des_ede3_cbc, 8) \
_ (cbc, AES_128_CBC, EVP_aes_128_cbc, 16) \
_ (cbc, AES_192_CBC, EVP_aes_192_cbc, 16) \
_ (cbc, AES_256_CBC, EVP_aes_256_cbc, 16) \
_ (gcm, AES_128_GCM, EVP_aes_128_gcm, 8) \
_ (gcm, AES_192_GCM, EVP_aes_192_gcm, 8) \
_ (gcm, AES_256_GCM, EVP_aes_256_gcm, 8) \
_ (cbc, AES_128_CTR, EVP_aes_128_ctr, 8) \
_ (cbc, AES_192_CTR, EVP_aes_192_ctr, 8) \
_ (cbc, AES_256_CTR, EVP_aes_256_ctr, 8) \
_ (null_gmac, AES_128_NULL_GMAC, EVP_aes_128_gcm, 8) \
_ (null_gmac, AES_192_NULL_GMAC, EVP_aes_192_gcm, 8) \
_ (null_gmac, AES_256_NULL_GMAC, EVP_aes_256_gcm, 8)
#define foreach_openssl_chacha20_evp_op \
_ (chacha20_poly1305, CHACHA20_POLY1305, EVP_chacha20_poly1305, 8)
#if OPENSSL_VERSION_NUMBER >= 0x10100000L
#define foreach_openssl_evp_op foreach_openssl_aes_evp_op \
foreach_openssl_chacha20_evp_op
#else
#define foreach_openssl_evp_op foreach_openssl_aes_evp_op
#endif
#ifndef EVP_CTRL_AEAD_GET_TAG
#define EVP_CTRL_AEAD_GET_TAG EVP_CTRL_GCM_GET_TAG
#endif
#ifndef EVP_CTRL_AEAD_SET_TAG
#define EVP_CTRL_AEAD_SET_TAG EVP_CTRL_GCM_SET_TAG
#endif
#define foreach_openssl_hash_op \
_ (SHA1, EVP_sha1) \
_ (SHA224, EVP_sha224) \
_ (SHA256, EVP_sha256) \
_ (SHA384, EVP_sha384) \
_ (SHA512, EVP_sha512)
#define foreach_openssl_hmac_op \
_(MD5, EVP_md5) \
_(SHA1, EVP_sha1) \
_(SHA224, EVP_sha224) \
_(SHA256, EVP_sha256) \
_(SHA384, EVP_sha384) \
_(SHA512, EVP_sha512)
crypto_openssl_main_t crypto_openssl_main;
static_always_inline u32
openssl_ops_enc_cbc (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, const int iv_len)
{
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
EVP_CIPHER_CTX *ctx;
vnet_crypto_op_chunk_t *chp;
u32 i, j, curr_len = 0;
u8 out_buf[VLIB_BUFFER_DEFAULT_DATA_SIZE * 5];
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
int out_len = 0;
ctx = ptd->evp_cipher_enc_ctx[op->key_index];
EVP_EncryptInit_ex (ctx, NULL, NULL, NULL, op->iv);
if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
{
chp = chunks + op->chunk_index;
u32 offset = 0;
for (j = 0; j < op->n_chunks; j++)
{
EVP_EncryptUpdate (ctx, out_buf + offset, &out_len, chp->src,
chp->len);
curr_len = chp->len;
offset += out_len;
chp += 1;
}
if (out_len < curr_len)
EVP_EncryptFinal_ex (ctx, out_buf + offset, &out_len);
offset = 0;
chp = chunks + op->chunk_index;
for (j = 0; j < op->n_chunks; j++)
{
clib_memcpy_fast (chp->dst, out_buf + offset, chp->len);
offset += chp->len;
chp += 1;
}
}
else
{
EVP_EncryptUpdate (ctx, op->dst, &out_len, op->src, op->len);
if (out_len < op->len)
EVP_EncryptFinal_ex (ctx, op->dst + out_len, &out_len);
}
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
}
return n_ops;
}
static_always_inline u32
openssl_ops_dec_cbc (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, const int iv_len)
{
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
EVP_CIPHER_CTX *ctx;
vnet_crypto_op_chunk_t *chp;
u32 i, j, curr_len = 0;
u8 out_buf[VLIB_BUFFER_DEFAULT_DATA_SIZE * 5];
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
int out_len = 0;
ctx = ptd->evp_cipher_dec_ctx[op->key_index];
EVP_DecryptInit_ex (ctx, NULL, NULL, NULL, op->iv);
if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
{
chp = chunks + op->chunk_index;
u32 offset = 0;
for (j = 0; j < op->n_chunks; j++)
{
EVP_DecryptUpdate (ctx, out_buf + offset, &out_len, chp->src,
chp->len);
curr_len = chp->len;
offset += out_len;
chp += 1;
}
if (out_len < curr_len)
EVP_DecryptFinal_ex (ctx, out_buf + offset, &out_len);
offset = 0;
chp = chunks + op->chunk_index;
for (j = 0; j < op->n_chunks; j++)
{
clib_memcpy_fast (chp->dst, out_buf + offset, chp->len);
offset += chp->len;
chp += 1;
}
}
else
{
EVP_DecryptUpdate (ctx, op->dst, &out_len, op->src, op->len);
if (out_len < op->len)
EVP_DecryptFinal_ex (ctx, op->dst + out_len, &out_len);
}
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
}
return n_ops;
}
static_always_inline u32
openssl_ops_enc_aead (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, int is_gcm, int is_gmac,
const int iv_len)
{
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
EVP_CIPHER_CTX *ctx;
vnet_crypto_op_chunk_t *chp;
u32 i, j;
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
int len = 0;
ctx = ptd->evp_cipher_enc_ctx[op->key_index];
EVP_EncryptInit_ex (ctx, 0, 0, NULL, op->iv);
if (op->aad_len)
EVP_EncryptUpdate (ctx, NULL, &len, op->aad, op->aad_len);
if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
{
chp = chunks + op->chunk_index;
for (j = 0; j < op->n_chunks; j++)
{
EVP_EncryptUpdate (ctx, is_gmac ? 0 : chp->dst, &len, chp->src,
chp->len);
chp += 1;
}
}
else
EVP_EncryptUpdate (ctx, is_gmac ? 0 : op->dst, &len, op->src, op->len);
EVP_EncryptFinal_ex (ctx, is_gmac ? 0 : op->dst + len, &len);
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_AEAD_GET_TAG, op->tag_len, op->tag);
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
}
return n_ops;
}
static_always_inline u32
openssl_ops_enc_null_gmac (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, const int iv_len)
{
return openssl_ops_enc_aead (vm, ops, chunks, n_ops, cipher,
/* is_gcm */ 1, /* is_gmac */ 1, iv_len);
}
static_always_inline u32
openssl_ops_enc_gcm (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, const int iv_len)
{
return openssl_ops_enc_aead (vm, ops, chunks, n_ops, cipher,
/* is_gcm */ 1, /* is_gmac */ 0, iv_len);
}
static_always_inline __clib_unused u32
openssl_ops_enc_chacha20_poly1305 (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, const int iv_len)
{
return openssl_ops_enc_aead (vm, ops, chunks, n_ops, cipher,
/* is_gcm */ 0, /* is_gmac */ 0, iv_len);
}
static_always_inline u32
openssl_ops_dec_aead (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, int is_gcm, int is_gmac,
const int iv_len)
{
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
EVP_CIPHER_CTX *ctx;
vnet_crypto_op_chunk_t *chp;
u32 i, j, n_fail = 0;
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
int len = 0;
ctx = ptd->evp_cipher_dec_ctx[op->key_index];
EVP_DecryptInit_ex (ctx, 0, 0, NULL, op->iv);
if (op->aad_len)
EVP_DecryptUpdate (ctx, 0, &len, op->aad, op->aad_len);
if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
{
chp = chunks + op->chunk_index;
for (j = 0; j < op->n_chunks; j++)
{
EVP_DecryptUpdate (ctx, is_gmac ? 0 : chp->dst, &len, chp->src,
chp->len);
chp += 1;
}
}
else
{
EVP_DecryptUpdate (ctx, is_gmac ? 0 : op->dst, &len, op->src,
op->len);
}
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_AEAD_SET_TAG, op->tag_len, op->tag);
if (EVP_DecryptFinal_ex (ctx, is_gmac ? 0 : op->dst + len, &len) > 0)
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
else
{
n_fail++;
op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC;
}
}
return n_ops - n_fail;
}
static_always_inline u32
openssl_ops_dec_null_gmac (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, const int iv_len)
{
return openssl_ops_dec_aead (vm, ops, chunks, n_ops, cipher,
/* is_gcm */ 1, /* is_gmac */ 1, iv_len);
}
static_always_inline u32
openssl_ops_dec_gcm (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, const int iv_len)
{
return openssl_ops_dec_aead (vm, ops, chunks, n_ops, cipher,
/* is_gcm */ 1, /* is_gmac */ 0, iv_len);
}
static_always_inline __clib_unused u32
openssl_ops_dec_chacha20_poly1305 (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops,
const EVP_CIPHER *cipher, const int iv_len)
{
return openssl_ops_dec_aead (vm, ops, chunks, n_ops, cipher,
/* is_gcm */ 0, /* is_gmac */ 0, iv_len);
}
static_always_inline u32
openssl_ops_hash (vlib_main_t *vm, vnet_crypto_op_t *ops[],
vnet_crypto_op_chunk_t *chunks, u32 n_ops, const EVP_MD *md)
{
openssl_per_thread_data_t *ptd =
vec_elt_at_index (per_thread_data, vm->thread_index);
EVP_MD_CTX *ctx = ptd->hash_ctx;
vnet_crypto_op_chunk_t *chp;
u32 md_len, i, j, n_fail = 0;
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
EVP_DigestInit_ex (ctx, md, NULL);
if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
{
chp = chunks + op->chunk_index;
for (j = 0; j < op->n_chunks; j++)
{
EVP_DigestUpdate (ctx, chp->src, chp->len);
chp += 1;
}
}
else
EVP_DigestUpdate (ctx, op->src, op->len);
EVP_DigestFinal_ex (ctx, op->digest, &md_len);
op->digest_len = md_len;
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
}
return n_ops - n_fail;
}
static_always_inline u32
openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[],
vnet_crypto_op_chunk_t * chunks, u32 n_ops,
const EVP_MD * md)
{
u8 buffer[64];
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
HMAC_CTX *ctx;
vnet_crypto_op_chunk_t *chp;
u32 i, j, n_fail = 0;
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
unsigned int out_len = 0;
size_t sz = op->digest_len ? op->digest_len : EVP_MD_size (md);
ctx = ptd->hmac_ctx[op->key_index];
HMAC_Init_ex (ctx, NULL, 0, NULL, NULL);
if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
{
chp = chunks + op->chunk_index;
for (j = 0; j < op->n_chunks; j++)
{
HMAC_Update (ctx, chp->src, chp->len);
chp += 1;
}
}
else
HMAC_Update (ctx, op->src, op->len);
HMAC_Final (ctx, buffer, &out_len);
if (op->flags & VNET_CRYPTO_OP_FLAG_HMAC_CHECK)
{
if ((memcmp (op->digest, buffer, sz)))
{
n_fail++;
op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC;
continue;
}
}
else
clib_memcpy_fast (op->digest, buffer, sz);
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
}
return n_ops - n_fail;
}
static_always_inline void *
openssl_ctx_cipher (vnet_crypto_key_t *key, vnet_crypto_key_op_t kop,
vnet_crypto_key_index_t idx, const EVP_CIPHER *cipher,
int is_gcm)
{
EVP_CIPHER_CTX *ctx;
openssl_per_thread_data_t *ptd;
if (VNET_CRYPTO_KEY_OP_ADD == kop)
{
vec_foreach (ptd, per_thread_data)
{
vec_validate_aligned (ptd->evp_cipher_enc_ctx, idx,
CLIB_CACHE_LINE_BYTES);
vec_validate_aligned (ptd->evp_cipher_dec_ctx, idx,
CLIB_CACHE_LINE_BYTES);
ctx = EVP_CIPHER_CTX_new ();
EVP_CIPHER_CTX_set_padding (ctx, 0);
EVP_EncryptInit_ex (ctx, cipher, NULL, NULL, NULL);
if (is_gcm)
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, 12, NULL);
EVP_EncryptInit_ex (ctx, 0, 0, key->data, 0);
ptd->evp_cipher_enc_ctx[idx] = ctx;
ctx = EVP_CIPHER_CTX_new ();
EVP_CIPHER_CTX_set_padding (ctx, 0);
EVP_DecryptInit_ex (ctx, cipher, 0, 0, 0);
if (is_gcm)
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, 12, 0);
EVP_DecryptInit_ex (ctx, 0, 0, key->data, 0);
ptd->evp_cipher_dec_ctx[idx] = ctx;
}
}
else if (VNET_CRYPTO_KEY_OP_MODIFY == kop)
{
vec_foreach (ptd, per_thread_data)
{
ctx = ptd->evp_cipher_enc_ctx[idx];
EVP_EncryptInit_ex (ctx, cipher, NULL, NULL, NULL);
if (is_gcm)
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, 12, NULL);
EVP_EncryptInit_ex (ctx, 0, 0, key->data, 0);
ctx = ptd->evp_cipher_dec_ctx[idx];
EVP_DecryptInit_ex (ctx, cipher, 0, 0, 0);
if (is_gcm)
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, 12, 0);
EVP_DecryptInit_ex (ctx, 0, 0, key->data, 0);
}
}
else if (VNET_CRYPTO_KEY_OP_DEL == kop)
{
vec_foreach (ptd, per_thread_data)
{
ctx = ptd->evp_cipher_enc_ctx[idx];
EVP_CIPHER_CTX_free (ctx);
ptd->evp_cipher_enc_ctx[idx] = NULL;
ctx = ptd->evp_cipher_dec_ctx[idx];
EVP_CIPHER_CTX_free (ctx);
ptd->evp_cipher_dec_ctx[idx] = NULL;
}
}
return NULL;
}
static_always_inline void *
openssl_ctx_hmac (vnet_crypto_key_t *key, vnet_crypto_key_op_t kop,
vnet_crypto_key_index_t idx, const EVP_MD *md)
{
HMAC_CTX *ctx;
openssl_per_thread_data_t *ptd;
if (VNET_CRYPTO_KEY_OP_ADD == kop)
{
vec_foreach (ptd, per_thread_data)
{
vec_validate_aligned (ptd->hmac_ctx, idx, CLIB_CACHE_LINE_BYTES);
#if OPENSSL_VERSION_NUMBER >= 0x10100000L
ctx = HMAC_CTX_new ();
HMAC_Init_ex (ctx, key->data, vec_len (key->data), md, NULL);
ptd->hmac_ctx[idx] = ctx;
#else
HMAC_CTX_init (&(ptd->_hmac_ctx));
ptd->hmac_ctx[idx] = &ptd->_hmac_ctx;
#endif
}
}
else if (VNET_CRYPTO_KEY_OP_MODIFY == kop)
{
vec_foreach (ptd, per_thread_data)
{
ctx = ptd->hmac_ctx[idx];
HMAC_Init_ex (ctx, key->data, vec_len (key->data), md, NULL);
}
}
else if (VNET_CRYPTO_KEY_OP_DEL == kop)
{
vec_foreach (ptd, per_thread_data)
{
ctx = ptd->hmac_ctx[idx];
HMAC_CTX_free (ctx);
ptd->hmac_ctx[idx] = NULL;
}
}
return NULL;
}
static void
crypto_openssl_key_handler (vlib_main_t *vm, vnet_crypto_key_op_t kop,
vnet_crypto_key_index_t idx)
{
vnet_crypto_key_t *key = vnet_crypto_get_key (idx);
crypto_openssl_main_t *cm = &crypto_openssl_main;
/** TODO: add linked alg support **/
if (key->type == VNET_CRYPTO_KEY_TYPE_LINK)
return;
if (cm->ctx_fn[key->alg] == 0)
return;
cm->ctx_fn[key->alg](key, kop, idx);
}
#define _(m, a, b, iv) \
static u32 openssl_ops_enc_##a (vlib_main_t *vm, vnet_crypto_op_t *ops[], \
u32 n_ops) \
{ \
return openssl_ops_enc_##m (vm, ops, 0, n_ops, b (), iv); \
} \
\
u32 openssl_ops_dec_##a (vlib_main_t *vm, vnet_crypto_op_t *ops[], \
u32 n_ops) \
{ \
return openssl_ops_dec_##m (vm, ops, 0, n_ops, b (), iv); \
} \
\
static u32 openssl_ops_enc_chained_##a ( \
vlib_main_t *vm, vnet_crypto_op_t *ops[], vnet_crypto_op_chunk_t *chunks, \
u32 n_ops) \
{ \
return openssl_ops_enc_##m (vm, ops, chunks, n_ops, b (), iv); \
} \
\
static u32 openssl_ops_dec_chained_##a ( \
vlib_main_t *vm, vnet_crypto_op_t *ops[], vnet_crypto_op_chunk_t *chunks, \
u32 n_ops) \
{ \
return openssl_ops_dec_##m (vm, ops, chunks, n_ops, b (), iv); \
} \
static void *openssl_ctx_##a (vnet_crypto_key_t *key, \
vnet_crypto_key_op_t kop, \
vnet_crypto_key_index_t idx) \
{ \
int is_gcm = ((VNET_CRYPTO_ALG_AES_128_GCM <= key->alg) && \
(VNET_CRYPTO_ALG_AES_256_NULL_GMAC >= key->alg)) ? \
1 : \
0; \
return openssl_ctx_cipher (key, kop, idx, b (), is_gcm); \
}
foreach_openssl_evp_op;
#undef _
#define _(a, b) \
static u32 openssl_ops_hash_##a (vlib_main_t *vm, vnet_crypto_op_t *ops[], \
u32 n_ops) \
{ \
return openssl_ops_hash (vm, ops, 0, n_ops, b ()); \
} \
static u32 openssl_ops_hash_chained_##a ( \
vlib_main_t *vm, vnet_crypto_op_t *ops[], vnet_crypto_op_chunk_t *chunks, \
u32 n_ops) \
{ \
return openssl_ops_hash (vm, ops, chunks, n_ops, b ()); \
}
foreach_openssl_hash_op;
#undef _
#define _(a, b) \
static u32 openssl_ops_hmac_##a (vlib_main_t *vm, vnet_crypto_op_t *ops[], \
u32 n_ops) \
{ \
return openssl_ops_hmac (vm, ops, 0, n_ops, b ()); \
} \
static u32 openssl_ops_hmac_chained_##a ( \
vlib_main_t *vm, vnet_crypto_op_t *ops[], vnet_crypto_op_chunk_t *chunks, \
u32 n_ops) \
{ \
return openssl_ops_hmac (vm, ops, chunks, n_ops, b ()); \
} \
static void *openssl_ctx_hmac_##a (vnet_crypto_key_t *key, \
vnet_crypto_key_op_t kop, \
vnet_crypto_key_index_t idx) \
{ \
return openssl_ctx_hmac (key, kop, idx, b ()); \
}
foreach_openssl_hmac_op;
#undef _
clib_error_t *
crypto_openssl_init (vlib_main_t * vm)
{
crypto_openssl_main_t *cm = &crypto_openssl_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
openssl_per_thread_data_t *ptd;
u8 seed[32];
if (syscall (SYS_getrandom, &seed, sizeof (seed), 0) != sizeof (seed))
return clib_error_return_unix (0, "getrandom() failed");
RAND_seed (seed, sizeof (seed));
u32 eidx = vnet_crypto_register_engine (vm, "openssl", 50, "OpenSSL");
cm->crypto_engine_index = eidx;
#define _(m, a, b, iv) \
vnet_crypto_register_ops_handlers (vm, eidx, VNET_CRYPTO_OP_##a##_ENC, \
openssl_ops_enc_##a, \
openssl_ops_enc_chained_##a); \
vnet_crypto_register_ops_handlers (vm, eidx, VNET_CRYPTO_OP_##a##_DEC, \
openssl_ops_dec_##a, \
openssl_ops_dec_chained_##a); \
cm->ctx_fn[VNET_CRYPTO_ALG_##a] = openssl_ctx_##a;
foreach_openssl_evp_op;
#undef _
#define _(a, b) \
vnet_crypto_register_ops_handlers (vm, eidx, VNET_CRYPTO_OP_##a##_HMAC, \
openssl_ops_hmac_##a, \
openssl_ops_hmac_chained_##a); \
cm->ctx_fn[VNET_CRYPTO_ALG_HMAC_##a] = openssl_ctx_hmac_##a;
foreach_openssl_hmac_op;
#undef _
#define _(a, b) \
vnet_crypto_register_ops_handlers (vm, eidx, VNET_CRYPTO_OP_##a##_HASH, \
openssl_ops_hash_##a, \
openssl_ops_hash_chained_##a);
foreach_openssl_hash_op;
#undef _
vec_validate_aligned (per_thread_data, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
vec_foreach (ptd, per_thread_data)
{
#if OPENSSL_VERSION_NUMBER >= 0x10100000L
ptd->hash_ctx = EVP_MD_CTX_create ();
#endif
}
vnet_crypto_register_key_handler (vm, cm->crypto_engine_index,
crypto_openssl_key_handler);
return 0;
}
VLIB_INIT_FUNCTION (crypto_openssl_init) =
{
.runs_after = VLIB_INITS ("vnet_crypto_init"),
};
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
.description = "OpenSSL Crypto Engine",
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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