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Subject: [dpdk-stable] [PATCH v3 08/10] common/dpaax: fix IV value for
shortMAC-I for SNOW algo
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From: Gagandeep Singh <g.singh@nxp.com>
The logic was incorecly 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>
---
drivers/common/dpaax/caamflib/desc/pdcp.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/common/dpaax/caamflib/desc/pdcp.h b/drivers/common/dpaax/caamflib/desc/pdcp.h
index 5b3d846099..8e8daf5ba8 100644
--- a/drivers/common/dpaax/caamflib/desc/pdcp.h
+++ b/drivers/common/dpaax/caamflib/desc/pdcp.h
@@ -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));
--
2.17.1