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path: root/src/plugins/crypto_ia32/aes_cbc.c
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-rw-r--r--src/plugins/crypto_ia32/aes_cbc.c39
1 files changed, 25 insertions, 14 deletions
diff --git a/src/plugins/crypto_ia32/aes_cbc.c b/src/plugins/crypto_ia32/aes_cbc.c
index 281cc83705a..091f7b6a539 100644
--- a/src/plugins/crypto_ia32/aes_cbc.c
+++ b/src/plugins/crypto_ia32/aes_cbc.c
@@ -95,10 +95,12 @@ aesni_ops_enc_aes_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[],
vm->thread_index);
int rounds = AESNI_KEY_ROUNDS (ks);
u8 dummy[8192];
- u8 *src[4], *dst[4], *key[4];
+ u8 *src[4] = { };
+ u8 *dst[4] = { };
+ u8 *key[4] = { };
u32x4 dummy_mask, len = { };
u32 i, j, count, n_left = n_ops;
- __m128i r[4], k[4][rounds + 1];
+ __m128i r[4] = { }, k[4][rounds + 1];
more:
for (i = 0; i < 4; i++)
@@ -187,22 +189,30 @@ aesni_ops_dec_aes_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[],
u32 n_ops, aesni_key_size_t ks)
{
int rounds = AESNI_KEY_ROUNDS (ks);
- u8 *last_key = 0;
- u32 i;
+ vnet_crypto_op_t *op = ops[0];
+ u32 n_left = n_ops;
+ u8 *last_key;
__m128i k[rounds + 1];
- for (i = 0; i < n_ops; i++)
+ ASSERT (n_ops >= 1);
+
+key_expand:
+ last_key = op->key;
+ aes_key_expand (k, op->key, ks);
+ aes_key_enc_to_dec (k, ks);
+
+decrypt:
+ aes_cbc_dec (k, op->src, op->dst, op->iv, op->len, rounds);
+ op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
+
+ if (--n_left)
{
- vnet_crypto_op_t *op = ops[i];
+ op += 1;
if (last_key != op->key)
- {
- aes_key_expand (k, op->key, ks);
- last_key = op->key;
- aes_key_enc_to_dec (k, rounds);
- }
- aes_cbc_dec (k, op->src, op->dst, op->iv, op->len, rounds);
- op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
+ goto key_expand;
+ goto decrypt;
}
+
return n_ops;
}
@@ -237,7 +247,8 @@ crypto_ia32_aesni_cbc_init (vlib_main_t * vm)
{
for (int i = 0; i < 4; i++)
{
- if (read(fd, ptd->cbc_iv, sizeof (ptd->cbc_iv)) < 0)
+ if (read(fd, ptd->cbc_iv, sizeof (ptd->cbc_iv)) !=
+ sizeof (ptd->cbc_iv))
{
err = clib_error_return_unix (0, "'/dev/urandom' read failure");
goto error;