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qcacld-3.0: Handling of ML probe response

Quellcode durchsuchen 
- Validate and process the ML probe response
- Drop the beacon frame if ml probe sent flag is true

Change-Id: Id55cd381bab334628650e19e74044ca102f65dbc
CRs-Fixed: 3237674
Dieser Commit ist enthalten in:
Amruta Kulkarni
2022-06-30 17:21:13 -07:00
committet von Madan Koyyalamudi
Ursprung a829700951
Commit 7becf9ee33
4 geänderte Dateien mit 154 neuen und 51 gelöschten Zeilen
Patch-Datei herunterladen Vergleichs-Datei herunterladen Alle Dateien ausklappen Alle Dateien einklappen

13
core/mac/src/pe/include/lim_api.h
Datei anzeigen

@@ -588,6 +588,13 @@ lim_gen_link_specific_probe_rsp(struct mac_context *mac_ctx,
uint8_t *probe_rsp,
uint32_t probe_rsp_len,
int32_t rssi);
/**
* lim_check_for_ml_probe_req() - check if ml probe req is sent
* @session: pe session
*
* Return qdf status
*/
QDF_STATUS lim_check_for_ml_probe_req(struct pe_session *session);
#else
static inline QDF_STATUS
lim_gen_link_specific_probe_rsp(struct mac_context *mac_ctx,
@@ -596,6 +603,12 @@ lim_gen_link_specific_probe_rsp(struct mac_context *mac_ctx,
uint8_t *probe_rsp,
uint32_t probe_rsp_len,
int32_t rssi)
{
return QDF_STATUS_SUCCESS;
}
static inline QDF_STATUS
lim_check_for_ml_probe_req(struct pe_session *session)
{
return QDF_STATUS_E_NOSUPPORT;
}

180
core/mac/src/pe/lim/lim_api.c
Datei anzeigen

@@ -3460,6 +3460,23 @@ lim_mlo_roam_delete_link_peer(struct pe_session *pe_session,
#endif
#ifdef WLAN_FEATURE_11BE_MLO
static bool
lim_match_link_info(uint8_t req_link_id,
struct qdf_mac_addr *link_addr,
struct mlo_partner_info *partner_info)
{
uint8_t i;
for (i = 0; i < partner_info->num_partner_links; i++) {
if (partner_info->partner_link_info[i].link_id == req_link_id &&
(qdf_is_macaddr_equal(link_addr,
&partner_info->partner_link_info[i].link_addr)))
return true;
}
return false;
}
static void
lim_add_bcn_probe(struct wlan_objmgr_vdev *vdev, uint8_t *bcn_probe,
uint32_t len, qdf_freq_t freq, int32_t rssi)
@@ -3513,6 +3530,58 @@ lim_add_bcn_probe(struct wlan_objmgr_vdev *vdev, uint8_t *bcn_probe,
&rx_param, frm_type);
}
static QDF_STATUS
lim_validate_probe_rsp_link_info(struct pe_session *session_entry,
uint8_t *probe_rsp,
uint32_t probe_rsp_len)
{
QDF_STATUS status = QDF_STATUS_SUCCESS;
uint8_t *ml_ie = NULL;
qdf_size_t ml_ie_total_len;
struct mlo_partner_info partner_info;
uint8_t i;
struct mlo_partner_info ml_partner_info;
status = util_find_mlie(probe_rsp + WLAN_PROBE_RESP_IES_OFFSET,
probe_rsp_len - WLAN_PROBE_RESP_IES_OFFSET,
&ml_ie, &ml_ie_total_len);
if (QDF_IS_STATUS_ERROR(status)) {
pe_err("Mlo ie not found in Probe response");
return status;
}
status = util_get_bvmlie_persta_partner_info(ml_ie,
ml_ie_total_len,
&partner_info);
if (QDF_IS_STATUS_ERROR(status)) {
pe_err("Per STA profile parsing failed");
return status;
}
ml_partner_info = session_entry->lim_join_req->partner_info;
for (i = 0; i < partner_info.num_partner_links; i++) {
if (!lim_match_link_info(ml_partner_info.partner_link_info[i].link_id,
&ml_partner_info.partner_link_info[i].link_addr,
&partner_info)) {
pe_err("Prb req link info does not match prb resp link info");
return QDF_STATUS_E_PROTO;
}
}
return status;
}
QDF_STATUS lim_check_for_ml_probe_req(struct pe_session *session)
{
if (!session || !session->lim_join_req)
return QDF_STATUS_E_NULL_VALUE;
if (session->lim_join_req->is_ml_probe_req_sent)
return QDF_STATUS_SUCCESS;
return QDF_STATUS_E_FAILURE;
}
QDF_STATUS
lim_gen_link_specific_probe_rsp(struct mac_context *mac_ctx,
struct pe_session *session_entry,
@@ -3530,62 +3599,71 @@ lim_gen_link_specific_probe_rsp(struct mac_context *mac_ctx,
uint8_t op_class;
uint16_t chan_freq;
if (!rcvd_probe_resp->mlo_ie.mlo_ie_present ||
!session_entry->lim_join_req->is_ml_probe_req_sent)
return QDF_STATUS_SUCCESS;
if (session_entry->lim_join_req->is_ml_probe_req_sent &&
rcvd_probe_resp->mlo_ie.mlo_ie_present) {
link_probe_rsp.ptr = qdf_mem_malloc(probe_rsp_len);
if (!link_probe_rsp.ptr)
return QDF_STATUS_E_NOMEM;
status = lim_validate_probe_rsp_link_info(session_entry,
probe_rsp,
probe_rsp_len);
qdf_mem_copy(&sta_link_addr, session_entry->self_mac_addr,
QDF_MAC_ADDR_SIZE);
if (QDF_IS_STATUS_ERROR(status))
return status;
link_probe_rsp.len = probe_rsp_len;
status = util_gen_link_probe_rsp(probe_rsp,
probe_rsp_len,
sta_link_addr,
link_probe_rsp.ptr,
probe_rsp_len,
(qdf_size_t *)&link_probe_rsp.len);
link_probe_rsp.ptr = qdf_mem_malloc(probe_rsp_len);
if (!link_probe_rsp.ptr)
return QDF_STATUS_E_NOMEM;
if (QDF_IS_STATUS_ERROR(status)) {
pe_err("MLO: Link probe response generation failed %d", status);
status = QDF_STATUS_E_FAILURE;
goto end;
qdf_mem_copy(&sta_link_addr, session_entry->self_mac_addr,
QDF_MAC_ADDR_SIZE);
link_probe_rsp.len = probe_rsp_len;
status = util_gen_link_probe_rsp(probe_rsp,
probe_rsp_len,
sta_link_addr,
link_probe_rsp.ptr,
probe_rsp_len,
(qdf_size_t *)&link_probe_rsp.len);
if (QDF_IS_STATUS_ERROR(status)) {
pe_err("MLO: Link probe response generation failed %d", status);
status = QDF_STATUS_E_FAILURE;
goto end;
}
partner_info = &session_entry->lim_join_req->partner_info;
if (!partner_info->num_partner_links) {
pe_err("Partner link info not available");
status = QDF_STATUS_E_FAILURE;
goto end;
}
/* Currently only 2 link mlo is supported */
link_info = &partner_info->partner_link_info[0];
wlan_get_chan_by_bssid_from_rnr(session_entry->vdev,
session_entry->cm_id,
&link_info->link_addr,
&chan, &op_class);
if (!chan)
wlan_get_chan_by_link_id_from_rnr(session_entry->vdev,
session_entry->cm_id,
link_info->link_id,
&chan, &op_class);
if (!chan) {
pe_err("Invalid link id %d link mac: " QDF_MAC_ADDR_FMT,
link_info->link_id,
QDF_MAC_ADDR_REF(link_info->link_addr.bytes));
status = QDF_STATUS_E_FAILURE;
goto end;
}
chan_freq = wlan_reg_chan_opclass_to_freq(chan, op_class,
true);
lim_add_bcn_probe(session_entry->vdev, link_probe_rsp.ptr,
link_probe_rsp.len,
chan_freq, rssi);
} else {
return status;
}
partner_info = &session_entry->lim_join_req->partner_info;
if (!partner_info->num_partner_links) {
pe_err("Partner link info not available");
status = QDF_STATUS_E_FAILURE;
goto end;
}
/* Currently only 2 link mlo is supported */
link_info = &partner_info->partner_link_info[0];
wlan_get_chan_by_bssid_from_rnr(session_entry->vdev,
session_entry->cm_id,
&link_info->link_addr,
&chan, &op_class);
if (!chan)
wlan_get_chan_by_link_id_from_rnr(session_entry->vdev,
session_entry->cm_id,
link_info->link_id,
&chan, &op_class);
if (!chan) {
pe_err("Invalid link id %d link mac: " QDF_MAC_ADDR_FMT,
link_info->link_id,
QDF_MAC_ADDR_REF(link_info->link_addr.bytes));
status = QDF_STATUS_E_FAILURE;
goto end;
}
chan_freq = wlan_reg_chan_opclass_to_freq(chan, op_class,
true);
lim_add_bcn_probe(session_entry->vdev, probe_rsp, probe_rsp_len,
chan_freq, rssi);
end:
qdf_mem_free(link_probe_rsp.ptr);
link_probe_rsp.len = 0;

4
core/mac/src/pe/lim/lim_process_beacon_frame.c
Datei anzeigen

@@ -223,6 +223,9 @@ lim_process_beacon_frame(struct mac_context *mac_ctx, uint8_t *rx_pkt_info,
return;
}
if (QDF_IS_STATUS_SUCCESS(lim_check_for_ml_probe_req(session)))
goto end;
lim_process_beacon_mlo(mac_ctx, session, bcn_ptr);
/*
@@ -279,6 +282,7 @@ lim_process_beacon_frame(struct mac_context *mac_ctx, uint8_t *rx_pkt_info,
lim_check_and_announce_join_success(mac_ctx, bcn_ptr,
mac_hdr, session);
}
end:
qdf_mem_free(bcn_ptr);
return;
}

8
core/mac/src/pe/lim/lim_process_probe_rsp_frame.c
Datei anzeigen

@@ -155,6 +155,8 @@ lim_process_probe_rsp_frame(struct mac_context *mac_ctx, uint8_t *rx_Packet_info
qdf_mem_free(probe_rsp);
return;
}
qdf_trace_hex_dump(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_DEBUG, body,
frame_len);
status = lim_gen_link_specific_probe_rsp(mac_ctx, session_entry,
probe_rsp,
@@ -162,6 +164,11 @@ lim_process_probe_rsp_frame(struct mac_context *mac_ctx, uint8_t *rx_Packet_info
frame_len,
mac_ctx->lim.bss_rssi);
if (QDF_IS_STATUS_ERROR(status)) {
pe_debug("Link specific prb rsp generation failed");
goto end;
}
if (session_entry->limMlmState ==
eLIM_MLM_WT_JOIN_BEACON_STATE) {
/*
@@ -277,6 +284,7 @@ lim_process_probe_rsp_frame(struct mac_context *mac_ctx, uint8_t *rx_Packet_info
mac_ctx, probe_rsp, session_entry);
}
}
end:
qdf_mem_free(probe_rsp);
/* Ignore Probe Response frame in all other states */