qcacmn: Generate Link Specific Assoc Response
Generate link specific association response for MLO partner links. CRs-Fixed: 2970626 Change-Id: I48520290c09f48ce356d166e1cd2ef24938e8fb2
This commit is contained in:
Amruta Kulkarni
committed by
Madan Koyyalamudi
Madan Koyyalamudi
부모
d7637a443d
커밋
f6032d1c4a
53
umac/mlo_mgr/inc/utils_mlo.h
Normal file
53
umac/mlo_mgr/inc/utils_mlo.h
Normal file
@@ -0,0 +1,53 @@
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/*
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* Copyright (c) 2021, The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
|
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* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* DOC: contains MLO manager containing util public api's
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*/
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#ifndef _WLAN_UTILS_MLO_H_
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#define _WLAN_UTILS_MLO_H_
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#include "wlan_mlo_mgr_public_structs.h"
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#include <wlan_cm_ucfg_api.h>
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#include <wlan_objmgr_vdev_obj.h>
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#ifdef WLAN_FEATURE_11BE_MLO
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#define FC0_IEEE_MGMT_FRM 0x10
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#define FC1_IEEE_MGMT_FRM 0x00
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/**
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* util_gen_link_assoc_rsp - Generate link association response
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*
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* @frame: association response frame ptr
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* @len: length of assoc rsp frame
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* @link_addr: link mac addr
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* @new_ie: Generated Link assoc rsp
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*
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* Return: true if vdev is a link vdev, false otherwise
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*/
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QDF_STATUS
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util_gen_link_assoc_rsp(uint8_t *frame, qdf_size_t len,
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struct qdf_mac_addr link_addr, uint8_t *new_ie);
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#else
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static inline QDF_STATUS
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util_gen_link_assoc_rsp(uint8_t *frame, qdf_size_t len,
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struct qdf_mac_addr link_addr, uint8_t *new_ie)
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{
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return QDF_STATUS_E_NOSUPPORT;
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}
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#endif
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#endif
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@@ -40,6 +40,23 @@
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struct mlo_mlme_ext_ops;
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struct vdev_mlme_obj;
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/* Max LINK PEER support */
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#define MAX_MLO_LINK_PEERS WLAN_UMAC_MLO_MAX_VDEVS
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#define MAX_MLO_PEER_ID 2048
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#define MLO_INVALID_PEER_ID 0xFFFF
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/* IE nomenclature */
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#define ID_POS 0
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#define TAG_LEN_POS 1
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#define MIN_IE_LEN 2
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#define MULTI_LINK_CTRL_1 3
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#define MULTI_LINK_CTRL_2 4
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#define STA_CTRL_1 2
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#define STA_CTRL_2 3
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#define STA_PROFILE_SUB_ELEM_ID 0
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#define PER_STA_PROF_MAC_ADDR_START 4
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/*
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* struct mlo_setup_info
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* To store the MLO setup related information
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@@ -215,6 +215,17 @@ mlo_get_ml_vdev_by_mac(struct wlan_objmgr_vdev *vdev,
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qdf_freq_t
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mlo_get_chan_freq_by_bssid(struct wlan_objmgr_pdev *pdev,
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struct qdf_mac_addr *bssid);
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/**
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* mlo_get_assoc_rsp - Get Assoc response from mlo manager
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*
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* @vdev: vdev obj mgr
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* @assoc_rsp_frame: association response frame ptr
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*
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* Return: none
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*/
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void mlo_get_assoc_rsp(struct wlan_objmgr_vdev *vdev,
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struct element_info **assoc_rsp_frame);
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#else
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static inline
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QDF_STATUS mlo_connect(struct wlan_objmgr_vdev *vdev,
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@@ -313,5 +324,11 @@ mlo_get_chan_freq_by_bssid(struct wlan_objmgr_pdev *pdev,
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{
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return 0;
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}
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static inline void
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mlo_get_assoc_rsp(struct wlan_objmgr_vdev *vdev,
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struct element_info **assoc_rsp_frame)
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{
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}
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#endif
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#endif
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357
umac/mlo_mgr/src/utils_mlo.c
Normal file
357
umac/mlo_mgr/src/utils_mlo.c
Normal file
@@ -0,0 +1,357 @@
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/*
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* Copyright (c) 2021, The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
|
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* copyright notice and this permission notice appear in all copies.
|
||||
*
|
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* DOC: contains MLO manager util api's
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*/
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#include <wlan_cmn.h>
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#include <wlan_mlo_mgr_sta.h>
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#include <wlan_cm_public_struct.h>
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#include <wlan_mlo_mgr_main.h>
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#include <wlan_cm_api.h>
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#include "wlan_scan_api.h"
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#include "qdf_types.h"
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#include "utils_mlo.h"
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#include "wlan_mlo_mgr_cmn.h"
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#ifdef WLAN_FEATURE_11BE_MLO
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static uint8_t *util_find_eid(uint8_t eid, uint8_t *frame, qdf_size_t len)
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{
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if (!frame)
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return NULL;
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while (len >= MIN_IE_LEN && len >= frame[TAG_LEN_POS] + MIN_IE_LEN) {
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if (frame[ID_POS] == eid)
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return frame;
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len -= frame[TAG_LEN_POS] + MIN_IE_LEN;
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frame += frame[TAG_LEN_POS] + MIN_IE_LEN;
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}
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return NULL;
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}
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static
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uint8_t *util_find_extn_eid(uint8_t eid, uint8_t extn_eid,
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uint8_t *frame, qdf_size_t len)
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{
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if (!frame)
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return NULL;
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while (len >= MIN_IE_LEN && len >= frame[TAG_LEN_POS] + MIN_IE_LEN) {
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if ((frame[ID_POS] == eid) &&
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(frame[ELEM_ID_EXTN_POS] == extn_eid))
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return frame;
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len -= frame[TAG_LEN_POS] + MIN_IE_LEN;
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frame += frame[TAG_LEN_POS] + MIN_IE_LEN;
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}
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return NULL;
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}
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static
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uint8_t *util_parse_multi_link_ctrl_ie(uint8_t *subelement,
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qdf_size_t len,
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qdf_size_t *link_info_ie_len)
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{
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qdf_size_t sub_ie_len = 0;
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if (!subelement || !len)
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return NULL;
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/* sta prof len = ML IE len + EID extn(1) + Multi Lnk ctrl(2) */
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sub_ie_len += TAG_LEN_POS + MIN_IE_LEN + 2;
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/* check if MLD MAC address present */
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if (qdf_test_bit(WLAN_ML_CTRL_PBM_IDX |
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WLAN_ML_BV_CTRL_PBM_MLDMACADDR_P,
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&subelement[MULTI_LINK_CTRL_1]))
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sub_ie_len = sub_ie_len + QDF_MAC_ADDR_SIZE;
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/* check if Link ID info */
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if (qdf_test_bit(WLAN_ML_CTRL_PBM_IDX |
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WLAN_ML_BV_CTRL_PBM_LINKIDINFO_P,
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&subelement[MULTI_LINK_CTRL_1]))
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sub_ie_len = sub_ie_len + TAG_LEN_POS;
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/* check if BSS parameter change count */
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if (qdf_test_bit(WLAN_ML_CTRL_PBM_IDX |
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WLAN_ML_BV_CTRL_PBM_BSSPARAMCHANGECNT_P,
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&subelement[MULTI_LINK_CTRL_1]))
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sub_ie_len = sub_ie_len + TAG_LEN_POS;
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/* check if Medium Sync Delay Info present */
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if (qdf_test_bit(WLAN_ML_CTRL_PBM_IDX |
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WLAN_ML_BV_CTRL_PBM_MEDIUMSYNCDELAYINFO_P,
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&subelement[MULTI_LINK_CTRL_1]))
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sub_ie_len = sub_ie_len + PAYLOAD_START_POS;
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/* check if EML cap present */
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if (qdf_test_bit(WLAN_ML_CTRL_PBM_IDX |
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WLAN_ML_BV_CTRL_PBM_EMLCAP_P,
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&subelement[MULTI_LINK_CTRL_2]))
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sub_ie_len = sub_ie_len + SUBELEMENT_START_POS;
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/* check if MLD cap present */
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if (qdf_test_bit(WLAN_ML_CTRL_PBM_IDX |
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WLAN_ML_BV_CTRL_PBM_MLDCAP_P,
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&subelement[MULTI_LINK_CTRL_2]))
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sub_ie_len = sub_ie_len + PAYLOAD_START_POS;
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if (link_info_ie_len) {
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*link_info_ie_len = len - sub_ie_len;
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mlo_debug("link_info_ie_len:%lu, sub_ie_len:%lu",
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*link_info_ie_len, sub_ie_len);
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}
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return &subelement[sub_ie_len];
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}
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static
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uint8_t *util_parse_sta_profile_ie(uint8_t *subelement,
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qdf_size_t len,
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qdf_size_t *per_sta_prof_ie_len,
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struct qdf_mac_addr *bssid)
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{
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qdf_size_t tmp_len = 0;
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uint8_t *tmp = NULL;
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if (!subelement || !len)
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return NULL;
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if (subelement[0] == 17)
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tmp = subelement;
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if (!tmp)
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return NULL;
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/* tmp_len = 2 (sta ctrl) + 1 (sub EID) + 1 (len) */
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tmp_len = PAYLOAD_START_POS + 2;
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/* check DTIM info present bit */
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if (qdf_test_bit(WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_DTIMINFOP_IDX,
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&subelement[STA_CTRL_1]))
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tmp_len = tmp_len + MIN_IE_LEN;
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/* check Beacon interval present bit */
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if (qdf_test_bit(WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_BCNINTP_IDX,
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&subelement[STA_CTRL_1]))
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tmp_len = tmp_len + TAG_LEN_POS;
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/* check STA link mac addr info present bit */
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if (qdf_test_bit(WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_MACADDRP_IDX,
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&subelement[STA_CTRL_1])) {
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tmp_len = tmp_len + QDF_MAC_ADDR_SIZE;
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qdf_mem_copy(&bssid->bytes, &tmp[4], QDF_MAC_ADDR_SIZE);
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}
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/* Add Link ID offset,as it will always be present in assoc rsp mlo ie */
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tmp_len = tmp_len + TAG_LEN_POS;
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/* check NTSR Link pair present bit */
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if (qdf_test_bit(WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_NSTRLINKPRP_IDX % 8,
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&subelement[STA_CTRL_2]))
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tmp_len = tmp_len + MIN_IE_LEN;
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/* check NTSR bitmap size present bit */
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if (qdf_test_bit(WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_NSTRBMSZ_IDX % 8,
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&subelement[STA_CTRL_2]))
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tmp_len = tmp_len + TAG_LEN_POS;
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if (len <= tmp_len) {
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mlo_err("len %lu <= tmp_len %lu, return", len, tmp_len);
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return NULL;
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}
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*per_sta_prof_ie_len = len - tmp_len;
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return &tmp[tmp_len];
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}
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QDF_STATUS util_gen_link_assoc_rsp(uint8_t *frame, qdf_size_t len,
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struct qdf_mac_addr link_addr,
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uint8_t *assoc_link_frame)
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{
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uint8_t *tmp = NULL;
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const uint8_t *tmp_old;
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qdf_size_t sub_len, tmp_rem_len;
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qdf_size_t link_info_len, per_sta_prof_len = 0;
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uint8_t *subelement;
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uint8_t *pos;
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uint8_t *sub_copy, *orig_copy;
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struct qdf_mac_addr bssid;
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struct wlan_frame_hdr *hdr;
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if (!frame || !len)
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return QDF_STATUS_E_NULL_VALUE;
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pos = assoc_link_frame;
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hdr = (struct wlan_frame_hdr *)pos;
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pos = pos + WLAN_MAC_HDR_LEN_3A;
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/* Assoc resp Capability(2) + AID(2) + Status Code(2) */
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qdf_mem_copy(pos, frame, WLAN_ASSOC_RSP_IES_OFFSET);
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pos = pos + WLAN_ASSOC_RSP_IES_OFFSET;
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/* find MLO IE */
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subelement = util_find_extn_eid(WLAN_ELEMID_EXTN_ELEM,
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WLAN_EXTN_ELEMID_MULTI_LINK,
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frame,
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len);
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if (!subelement)
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return QDF_STATUS_E_FAILURE;
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/* EID(1) + len (1) = 2 */
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sub_len = subelement[TAG_LEN_POS] + 2;
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sub_copy = qdf_mem_malloc(sub_len);
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if (!sub_copy)
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return QDF_STATUS_E_NOMEM;
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orig_copy = sub_copy;
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qdf_mem_copy(sub_copy, subelement, sub_len);
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|
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/* parse ml ie */
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sub_copy = util_parse_multi_link_ctrl_ie(sub_copy,
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sub_len,
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&link_info_len);
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|
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if (!sub_copy)
|
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return QDF_STATUS_E_NULL_VALUE;
|
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|
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/* parse sta profile ie */
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sub_copy = util_parse_sta_profile_ie(sub_copy,
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link_info_len,
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&per_sta_prof_len,
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&bssid);
|
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if (!sub_copy) {
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qdf_mem_copy(pos, frame, len);
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pos += len - WLAN_MAC_HDR_LEN_3A;
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goto update_header;
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}
|
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|
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/* go through IEs in frame and subelement,
|
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* merge them into new_ie
|
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*/
|
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tmp_old = util_find_eid(WLAN_ELEMID_SSID, frame, len);
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tmp_old = (tmp_old) ? tmp_old + tmp_old[TAG_LEN_POS] + MIN_IE_LEN : frame;
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while (((tmp_old + tmp_old[TAG_LEN_POS] + MIN_IE_LEN) - frame) <= len) {
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tmp = (uint8_t *)util_find_eid(tmp_old[0],
|
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sub_copy,
|
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per_sta_prof_len);
|
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if (!tmp) {
|
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/* ie in old ie but not in subelement */
|
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if (tmp_old[2] != WLAN_EXTN_ELEMID_MULTI_LINK) {
|
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if ((pos + tmp_old[TAG_LEN_POS] + MIN_IE_LEN) <=
|
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(assoc_link_frame + len)) {
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qdf_mem_copy(pos, tmp_old,
|
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(tmp_old[TAG_LEN_POS] +
|
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MIN_IE_LEN));
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pos += tmp_old[TAG_LEN_POS] + MIN_IE_LEN;
|
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}
|
||||
}
|
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} else {
|
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/* ie in transmitting ie also in subelement,
|
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* copy from subelement and flag the ie in subelement
|
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* as copied (by setting eid field to 0xff). For
|
||||
* vendor ie, compare OUI + type + subType to
|
||||
* determine if they are the same ie.
|
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*/
|
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tmp_rem_len = per_sta_prof_len - (tmp - sub_copy);
|
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if (tmp_old[0] == WLAN_ELEMID_VENDOR &&
|
||||
tmp_rem_len >= MIN_VENDOR_TAG_LEN) {
|
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if (!qdf_mem_cmp(tmp_old + PAYLOAD_START_POS,
|
||||
tmp + PAYLOAD_START_POS,
|
||||
OUI_LEN)) {
|
||||
/* same vendor ie, copy from
|
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* subelement
|
||||
*/
|
||||
if ((pos + tmp[TAG_LEN_POS] + MIN_IE_LEN) <=
|
||||
(assoc_link_frame + len)) {
|
||||
qdf_mem_copy(pos, tmp,
|
||||
tmp[TAG_LEN_POS] +
|
||||
MIN_IE_LEN);
|
||||
pos += tmp[TAG_LEN_POS] + MIN_IE_LEN;
|
||||
tmp[0] = 0;
|
||||
}
|
||||
} else {
|
||||
if ((pos + tmp_old[TAG_LEN_POS] +
|
||||
MIN_IE_LEN) <=
|
||||
(assoc_link_frame + len)) {
|
||||
qdf_mem_copy(pos, tmp_old,
|
||||
tmp_old[TAG_LEN_POS] +
|
||||
MIN_IE_LEN);
|
||||
pos += tmp_old[TAG_LEN_POS] +
|
||||
MIN_IE_LEN;
|
||||
}
|
||||
}
|
||||
} else if (tmp_old[0] == WLAN_ELEMID_EXTN_ELEM) {
|
||||
if (tmp_old[PAYLOAD_START_POS] ==
|
||||
tmp[PAYLOAD_START_POS]) {
|
||||
/* same ie, copy from subelement */
|
||||
if ((pos + tmp[TAG_LEN_POS] + MIN_IE_LEN) <=
|
||||
(assoc_link_frame + len)) {
|
||||
qdf_mem_copy(pos, tmp,
|
||||
tmp[TAG_LEN_POS] +
|
||||
MIN_IE_LEN);
|
||||
pos += tmp[TAG_LEN_POS] + MIN_IE_LEN;
|
||||
tmp[0] = 0;
|
||||
}
|
||||
} else {
|
||||
if ((pos + tmp_old[TAG_LEN_POS] + MIN_IE_LEN) <=
|
||||
(assoc_link_frame + len)) {
|
||||
qdf_mem_copy(pos, tmp_old,
|
||||
tmp_old[TAG_LEN_POS] +
|
||||
MIN_IE_LEN);
|
||||
pos += tmp_old[TAG_LEN_POS] +
|
||||
MIN_IE_LEN;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* copy ie from subelement into new ie */
|
||||
if ((pos + tmp[TAG_LEN_POS] + MIN_IE_LEN) <=
|
||||
(assoc_link_frame + len)) {
|
||||
qdf_mem_copy(pos, tmp,
|
||||
tmp[TAG_LEN_POS] + MIN_IE_LEN);
|
||||
pos += tmp[TAG_LEN_POS] + MIN_IE_LEN;
|
||||
tmp[0] = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (((tmp_old + tmp_old[TAG_LEN_POS] + MIN_IE_LEN) - frame) >= len)
|
||||
break;
|
||||
|
||||
tmp_old += tmp_old[TAG_LEN_POS] + MIN_IE_LEN;
|
||||
}
|
||||
|
||||
update_header:
|
||||
if (bssid.bytes) {
|
||||
/* Copy the link mac addr */
|
||||
qdf_mem_copy(hdr->i_addr3, bssid.bytes,
|
||||
QDF_MAC_ADDR_SIZE);
|
||||
qdf_mem_copy(hdr->i_addr2, bssid.bytes,
|
||||
QDF_MAC_ADDR_SIZE);
|
||||
qdf_mem_copy(hdr->i_addr1, &link_addr,
|
||||
QDF_MAC_ADDR_SIZE);
|
||||
hdr->i_fc[0] = FC0_IEEE_MGMT_FRM;
|
||||
hdr->i_fc[1] = FC1_IEEE_MGMT_FRM;
|
||||
/* seq num not used so not populated */
|
||||
}
|
||||
qdf_mem_free(orig_copy);
|
||||
|
||||
return QDF_STATUS_SUCCESS;
|
||||
}
|
||||
#endif
|
||||
@@ -252,6 +252,7 @@ QDF_STATUS mlo_connect(struct wlan_objmgr_vdev *vdev,
|
||||
*
|
||||
* Return: none
|
||||
*/
|
||||
|
||||
static void
|
||||
mlo_prepare_and_send_connect(struct wlan_objmgr_vdev *vdev,
|
||||
struct mlo_partner_info ml_parnter_info,
|
||||
@@ -272,7 +273,7 @@ mlo_prepare_and_send_connect(struct wlan_objmgr_vdev *vdev,
|
||||
sizeof(struct mlo_partner_info));
|
||||
|
||||
req.ssid.length = ssid.length;
|
||||
qdf_mem_copy(req.ssid.ssid, ssid.ssid,
|
||||
qdf_mem_copy(&req.ssid.ssid, &ssid.ssid,
|
||||
ssid.length);
|
||||
|
||||
wlan_cm_start_connect(vdev, &req);
|
||||
@@ -932,6 +933,7 @@ mlo_get_ml_vdev_by_mac(struct wlan_objmgr_vdev *vdev,
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
qdf_freq_t
|
||||
mlo_get_chan_freq_by_bssid(struct wlan_objmgr_pdev *pdev,
|
||||
struct qdf_mac_addr *bssid)
|
||||
@@ -969,4 +971,21 @@ error:
|
||||
|
||||
return ch_freq;
|
||||
}
|
||||
|
||||
void mlo_get_assoc_rsp(struct wlan_objmgr_vdev *vdev,
|
||||
struct element_info **assoc_rsp_frame)
|
||||
{
|
||||
struct wlan_mlo_dev_context *mlo_dev_ctx = vdev->mlo_dev_ctx;
|
||||
struct wlan_mlo_sta *sta_ctx = mlo_dev_ctx->sta_ctx;
|
||||
|
||||
if (!mlo_dev_ctx || !mlo_dev_ctx->sta_ctx)
|
||||
return;
|
||||
|
||||
if (!sta_ctx->assoc_rsp.len || !sta_ctx->assoc_rsp.ptr) {
|
||||
mlo_err("Assoc Resp info is empty");
|
||||
return;
|
||||
}
|
||||
|
||||
*assoc_rsp_frame = &sta_ctx->assoc_rsp;
|
||||
}
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user