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crypto/aesni_gcm: fix J0 padding bytes

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This commit fixes pre-counter block (J0) padding by clearing
four most significant bytes before setting initial counter value.

Fixes: b2bb359747 ("crypto/aesni_gcm: move pre-counter block to driver")

Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Acked-by: Piotr Azarewicz <piotrx.t.azarewicz@intel.com>
This commit is contained in:
Arek Kusztal 2016-12-23 08:24:51 +00:00 committed by Pablo de Lara
parent 84d7965866
commit b9719b996a
1 changed files with 3 additions and 1 deletions
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4
drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
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@ -40,6 +40,7 @@
#include <rte_vdev.h>
#include <rte_malloc.h>
#include <rte_cpuflags.h>
#include <rte_byteorder.h>
#include "aesni_gcm_pmd_private.h"
@ -241,7 +242,8 @@ process_gcm_crypto_op(struct aesni_gcm_qp *qp, struct rte_crypto_sym_op *op,
* to set BE LSB to 1, driver expects that 16B is allocated
*/
if (op->cipher.iv.length == 12) {
op->cipher.iv.data[15] = 1;
uint32_t *iv_padd = (uint32_t *)&op->cipher.iv.data[12];
*iv_padd = rte_bswap32(1);
}
if (op->auth.aad.length != 12 && op->auth.aad.length != 8 &&