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common/dpaax/caamflib: fix IV for short MAC-I in SNOW3G

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The logic was incorrectly doing conditional swap. It need to
be bit swap always.

Fixes: 73a24060cd70 ("crypto/dpaa2_sec: add sample PDCP descriptor APIs")
Cc: stable@dpdk.org

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
This commit is contained in:
Gagandeep Singh 2021-09-08 12:29:51 +05:30 committed by Akhil Goyal
parent 81eb760d22
commit c0182d6b75
1 changed files with 4 additions and 3 deletions
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7
drivers/common/dpaax/caamflib/desc/pdcp.h
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@ -1,6 +1,6 @@
/* SPDX-License-Identifier: BSD-3-Clause or GPL-2.0+
* Copyright 2008-2013 Freescale Semiconductor, Inc.
* Copyright 2019-2020 NXP
* Copyright 2019-2021 NXP
*/
#ifndef __DESC_PDCP_H__
@ -3715,9 +3715,10 @@ cnstr_shdsc_pdcp_short_mac(uint32_t *descbuf,
break;
case PDCP_AUTH_TYPE_SNOW:
/* IV calculation based on 3GPP specs. 36331, section:5.3.7.4 */
iv[0] = 0xFFFFFFFF;
iv[1] = swap ? swab32(0x04000000) : 0x04000000;
iv[2] = swap ? swab32(0xF8000000) : 0xF8000000;
iv[1] = swab32(0x04000000);
iv[2] = swab32(0xF8000000);
KEY(p, KEY2, authdata->key_enc_flags, authdata->key,
authdata->keylen, INLINE_KEY(authdata));