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-rw-r--r--src/plugins/crypto_openssl/main.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/plugins/crypto_openssl/main.c b/src/plugins/crypto_openssl/main.c
index 09d726749e1..7b645f4be88 100644
--- a/src/plugins/crypto_openssl/main.c
+++ b/src/plugins/crypto_openssl/main.c
@@ -102,6 +102,7 @@ static_always_inline u32
openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], 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 = ptd->hmac_ctx;
@@ -113,7 +114,13 @@ openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
HMAC_Init_ex (ctx, op->key, op->key_len, md, NULL);
HMAC_Update (ctx, op->src, op->len);
- HMAC_Final (ctx, op->dst, &out_len);
+ if (op->hmac_trunc_len)
+ {
+ HMAC_Final (ctx, buffer, &out_len);
+ clib_memcpy_fast (op->dst, buffer, op->hmac_trunc_len);
+ }
+ else
+ HMAC_Final (ctx, op->dst, &out_len);
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
}
return n_ops;