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qcacld-3.0: Fetch the SSID offset based on frame subtype

Browse source 
While processing roam synch event, host driver reads the
reassoc request frame IEs after the SSID offset. SSID offset
is different for reassociation and association frames.
Currently SSID offset is populated as association frame ssid
offset only if ft_im_roaming flag is set. But FW can send
association request in roam invoke to self cases also and
host reads the ssid offset as reassoc frame offset since
ft_im_roaming flag wont be set here.
This causes association frames passed to upper layers be
truncated.

Read the assoc frame IE based on the frame subtype.

Change-Id: If927e294e9809b6640e4de23d97a7637b16db70c
CRs-Fixed: 3195902
This commit is contained in:
Pragaspathi Thilagaraj 2022-05-20 18:43:41 +05:30 • committed by Madan Koyyalamudi
commit ccaa68da91
1 changed files with 18 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

22
core/sme/src/csr/csr_api_roam.c
View file

@ -83,8 +83,8 @@
#include "wlan_cm_roam_public_struct.h"
#include "wlan_mlme_twt_api.h"
#include "wlan_cmn_ieee80211.h"
#include "wlan_crypto_def_i.h"
#define RSN_AUTH_KEY_MGMT_SAE WLAN_RSN_SEL(WLAN_AKM_SAE)
#define MAX_PWR_FCC_CHAN_12 8
#define MAX_PWR_FCC_CHAN_13 2
@ -21091,6 +21091,7 @@ csr_process_roam_sync_callback(struct mac_context *mac_ctx,
{
uint8_t session_id = roam_synch_data->roamed_vdev_id;
struct csr_roam_session *session = CSR_GET_SESSION(mac_ctx, session_id);
struct wlan_frame_hdr *hdr;
tDot11fBeaconIEs *ies_local = NULL;
struct ps_global_info *ps_global_info = &mac_ctx->sme.ps_global_info;
struct csr_roam_info *roam_info;
@ -21610,15 +21611,28 @@ csr_process_roam_sync_callback(struct mac_context *mac_ctx,
eCSR_NEIGHBOR_ROAM_STATE_INIT, session_id);
}
if (roam_synch_data->is_ft_im_roam) {
hdr = (struct wlan_frame_hdr *)((uint8_t *)roam_synch_data +
roam_synch_data->reassoc_req_offset);
if (WLAN_FC0_GET_TYPE(hdr->i_fc[0]) == WLAN_FC0_TYPE_MGMT &&
WLAN_FC0_GET_STYPE(hdr->i_fc[0]) == WLAN_FC0_STYPE_ASSOC_REQ) {
ssid_offset = SIR_MAC_ASSOC_REQ_SSID_OFFSET;
} else {
ssid_offset = SIR_MAC_REASSOC_REQ_SSID_OFFSET;
}
roam_info->nBeaconLength = 0;
roam_info->nAssocReqLength = roam_synch_data->reassoc_req_length -
SIR_MAC_HDR_LEN_3A - ssid_offset;
roam_info->nAssocReqLength = 0;
roam_info->nAssocRspLength = 0;
if (roam_synch_data->reassoc_req_length >
(SIR_MAC_HDR_LEN_3A + ssid_offset)) {
roam_info->nAssocReqLength =
roam_synch_data->reassoc_req_length -
SIR_MAC_HDR_LEN_3A - ssid_offset;
} else {
sme_err("Invalid reassoc length:%d",
roam_synch_data->reassoc_req_length);
}
roam_info->nAssocRspLength = roam_synch_data->reassocRespLength -
SIR_MAC_HDR_LEN_3A;
roam_info->pbFrames = qdf_mem_malloc(roam_info->nBeaconLength +