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authorDamjan Marion <damarion@cisco.com>2019-03-18 18:59:25 +0100
committerNeale Ranns <nranns@cisco.com>2019-03-19 16:29:43 +0000
commit91f17dc7c4e79343b8fba924e7cea6380a0e6653 (patch)
treea5c47649bcf8d6668dc509bbc6f7b67e45714784 /src/vnet/ipsec/esp_decrypt.c
parent5daf0c55c094167ad590f683451239fa3e25c7fc (diff)
crypto: introduce crypto infra
Change-Id: Ibf320b3e7b054b686f3af9a55afd5d5bda9b1048 Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
Diffstat (limited to 'src/vnet/ipsec/esp_decrypt.c')
-rw-r--r--src/vnet/ipsec/esp_decrypt.c52
1 files changed, 20 insertions, 32 deletions
diff --git a/src/vnet/ipsec/esp_decrypt.c b/src/vnet/ipsec/esp_decrypt.c
index 7e5114ce2cf..1ee7ce8fd0a 100644
--- a/src/vnet/ipsec/esp_decrypt.c
+++ b/src/vnet/ipsec/esp_decrypt.c
@@ -82,35 +82,28 @@ format_esp_decrypt_trace (u8 * s, va_list * args)
}
always_inline void
-esp_decrypt_cbc (ipsec_crypto_alg_t alg,
+esp_decrypt_cbc (vlib_main_t * vm, ipsec_crypto_alg_t alg,
u8 * in, u8 * out, size_t in_len, u8 * key, u8 * iv)
{
- ipsec_proto_main_t *em = &ipsec_proto_main;
- u32 thread_index = vlib_get_thread_index ();
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- EVP_CIPHER_CTX *ctx = em->per_thread_data[thread_index].decrypt_ctx;
-#else
- EVP_CIPHER_CTX *ctx = &(em->per_thread_data[thread_index].decrypt_ctx);
-#endif
- const EVP_CIPHER *cipher = NULL;
- int out_len;
+ ipsec_main_t *im = &ipsec_main;
+ ipsec_main_crypto_alg_t *a;
+ vnet_crypto_op_t _op, *op = &_op;
ASSERT (alg < IPSEC_CRYPTO_N_ALG);
- if (PREDICT_FALSE (em->ipsec_proto_main_crypto_algs[alg].type == 0))
- return;
+ a = &im->crypto_algs[alg];
- if (PREDICT_FALSE
- (alg != em->per_thread_data[thread_index].last_decrypt_alg))
- {
- cipher = em->ipsec_proto_main_crypto_algs[alg].type;
- em->per_thread_data[thread_index].last_decrypt_alg = alg;
- }
+ if (PREDICT_FALSE (a->dec_op_type == VNET_CRYPTO_OP_NONE))
+ return;
- EVP_DecryptInit_ex (ctx, cipher, NULL, key, iv);
+ op->op = a->dec_op_type;
+ op->iv = iv;
+ op->src = in;
+ op->dst = out;
+ op->len = in_len;
+ op->key = key;
- EVP_DecryptUpdate (ctx, out, &out_len, in, in_len);
- EVP_DecryptFinal_ex (ctx, out + out_len, &out_len);
+ vnet_crypto_process_ops (vm, op, 1);
}
always_inline uword
@@ -119,7 +112,6 @@ esp_decrypt_inline (vlib_main_t * vm,
int is_ip6)
{
ipsec_main_t *im = &ipsec_main;
- ipsec_proto_main_t *em = &ipsec_proto_main;
u32 *from = vlib_frame_vector_args (from_frame);
u32 n_left_from = from_frame->n_vectors;
u32 new_bufs[VLIB_FRAME_SIZE];
@@ -189,15 +181,13 @@ esp_decrypt_inline (vlib_main_t * vm,
if (PREDICT_TRUE (sa0->integ_alg != IPSEC_INTEG_ALG_NONE))
{
u8 sig[64];
- int icv_size =
- em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
+ int icv_size = im->integ_algs[sa0->integ_alg].trunc_size;
clib_memset (sig, 0, sizeof (sig));
- u8 *icv =
- vlib_buffer_get_current (ib[0]) + ib[0]->current_length -
+ u8 *icv = vlib_buffer_get_current (ib[0]) + ib[0]->current_length -
icv_size;
ib[0]->current_length -= icv_size;
- hmac_calc (sa0->integ_alg, sa0->integ_key.data,
+ hmac_calc (vm, sa0->integ_alg, sa0->integ_key.data,
sa0->integ_key.len, (u8 *) esp0,
ib[0]->current_length, sig, sa0->use_esn, sa0->seq_hi);
@@ -227,10 +217,8 @@ esp_decrypt_inline (vlib_main_t * vm,
(sa0->crypto_alg >= IPSEC_CRYPTO_ALG_DES_CBC &&
sa0->crypto_alg <= IPSEC_CRYPTO_ALG_3DES_CBC))
{
- const int BLOCK_SIZE =
- em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].block_size;;
- const int IV_SIZE =
- em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].iv_size;
+ const int BLOCK_SIZE = im->crypto_algs[sa0->crypto_alg].block_size;
+ const int IV_SIZE = im->crypto_algs[sa0->crypto_alg].iv_size;
esp_footer_t *f0;
u8 ip_hdr_size = 0;
@@ -263,7 +251,7 @@ esp_decrypt_inline (vlib_main_t * vm,
}
}
- esp_decrypt_cbc (sa0->crypto_alg,
+ esp_decrypt_cbc (vm, sa0->crypto_alg,
esp0->data + IV_SIZE,
(u8 *) vlib_buffer_get_current (ob[0]) +
ip_hdr_size, BLOCK_SIZE * blocks,