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qcacld-3.0: Consider intersected AKM for association

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Currently host overwrites crypto AKM with candidate AP’s AKM.
To choose the most secure AKM, host do sort of AKMs properly
based on security to use for association and can choose the
AKM which station do not advertise and results in Assoc failure.

To fix this, consider intersection of crypto and candidate AP’s
AKM for association instead of AKMs directly from AP config.

CRs-Fixed: 4320132
Change-Id: Id1813fc9f7fe76ff5ae9daf4da051067bddfdce1
This commit is contained in:
Krupali Dhanvijay 2025-10-13 10:57:26 +05:30 • committed by Abinandhu M
commit 594c30b7ec
1 changed files with 19 additions and 3 deletions
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22
core/sme/src/csr/csr_util.c
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@ -1,6 +1,6 @@
/*
* Copyright (c) 2011-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@ -2451,6 +2451,7 @@ static void csr_update_key_mgmt_crypto_param(struct wlan_objmgr_vdev *vdev,
{
int32_t key_mgmt = 0;
int32_t neg_akm;
int32_t ap_akm = 0;
uint8_t i;
neg_akm = wlan_crypto_get_param(vdev, WLAN_CRYPTO_PARAM_KEY_MGMT);
@ -2460,9 +2461,16 @@ static void csr_update_key_mgmt_crypto_param(struct wlan_objmgr_vdev *vdev,
}
for (i = 0; i < ap_rsn.akm_suite_cnt; i++)
SET_PARAM(neg_akm,
SET_PARAM(ap_akm,
wlan_crypto_rsn_suite_to_keymgmt(ap_rsn.akm_suite[i]));
/* Intersect crypto AKM and candidate AP's AKM */
neg_akm &= ap_akm;
if (neg_akm <= 0) {
sme_err("Invalid AKM suite");
return;
}
/*
* As there can be multiple AKM present select the most secured AKM
* present
@ -2531,6 +2539,7 @@ static void csr_update_ucast_cipher_crypto_param(struct wlan_objmgr_vdev *vdev,
{
int32_t ucastcipherset = 0;
int32_t neg_ucastcipher;
int32_t ap_ucastcipher = 0;
uint8_t i;
neg_ucastcipher = wlan_crypto_get_param(vdev,
@ -2541,9 +2550,16 @@ static void csr_update_ucast_cipher_crypto_param(struct wlan_objmgr_vdev *vdev,
}
for (i = 0; i < ap_rsn.pwise_cipher_suite_count; i++)
SET_PARAM(neg_ucastcipher,
SET_PARAM(ap_ucastcipher,
wlan_crypto_rsn_suite_to_cipher(ap_rsn.pwise_cipher_suites[i]));
/* Intersect crypto cipherset and candidate AP's cipherset */
neg_ucastcipher &= ap_ucastcipher;
if (neg_ucastcipher <= 0) {
sme_err("Invalid unicast cipherset");
return;
}
/*
* As there can be multiple ucastcipher present select the most secured
* ucastcipher present.