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qcacld-3.0: Add support for wpa3 roaming authentication offload

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Firmware offloads WPA3 SAE authentication to host due to the
crypto library availability limitation. Once the roam candidate
selection is done in the firmware, firmware sends the
WMI_ROAM_PREAUTH_START_EVENTID. Once this event is received, the
host driver triggers the SAE.

Add support to offload the SAE authentication from firmware to
wpa_supplicant.

Change-Id: Ie3a9e731194e1edfcd9f33ef0d601767b9485d46
CRs-Fixed: 2490201
This commit is contained in:
Pragaspathi Thilagaraj 2019-07-14 22:47:09 +05:30 committed by nshrivas
parent 3088d73c29
commit 7a7163bac7
11 changed files with 204 additions and 0 deletions
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3
core/mac/inc/sir_api.h
View File

@ -372,6 +372,9 @@ struct sme_ready_req {
uint16_t messageType; /* eWNI_SME_SYS_READY_IND */
uint16_t length;
void *csr_roam_synch_cb;
QDF_STATUS (*csr_roam_auth_event_handle_cb)(struct mac_context *mac,
uint8_t vdev_id,
struct qdf_mac_addr bssid);
void *pe_roam_synch_cb;
void *stop_roaming_cb;
QDF_STATUS (*sme_msg_cb)(struct mac_context *mac,

1
core/mac/src/pe/lim/lim_api.c
View File

@ -1316,6 +1316,7 @@ void pe_register_callbacks_with_wma(struct mac_context *mac,
status = wma_register_roaming_callbacks(
ready_req->csr_roam_synch_cb,
ready_req->csr_roam_auth_event_handle_cb,
ready_req->pe_roam_synch_cb,
ready_req->pe_disconnect_cb);
if (status != QDF_STATUS_SUCCESS)

42
core/sme/inc/csr_neighbor_roam.h
View File

@ -308,6 +308,32 @@ QDF_STATUS csr_roam_read_tsf(struct mac_context *mac, uint8_t *pTimestamp,
QDF_STATUS csr_roam_synch_callback(struct mac_context *mac,
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr, enum sir_roam_op_code reason);
/**
* csr_roam_auth_offload_callback() - Registered CSR Callback function to handle
* WPA3 roam pre-auth event from firmware.
* @mac_ctx: Global mac context pointer
* @vdev_id: Vdev id
* @bssid: candidate AP bssid
*/
QDF_STATUS
csr_roam_auth_offload_callback(struct mac_context *mac_ctx,
uint8_t vdev_id,
struct qdf_mac_addr bssid);
/**
* csr_process_roam_auth_offload_callback() - API to trigger the
* WPA3 pre-auth event for candidate AP received from firmware.
* @vdev_id: vdev id
* @roam_bssid: Candidate BSSID to roam
*
* This function calls the hdd_sme_roam_callback with reason
* eCSR_ROAM_SAE_COMPUTE to trigger SAE auth to supplicant.
*/
QDF_STATUS
csr_process_roam_auth_offload_callback(struct mac_context *mac_ctx,
uint8_t vdev_id,
struct qdf_mac_addr roam_bssid);
#else
static inline QDF_STATUS csr_roam_synch_callback(struct mac_context *mac,
struct roam_offload_synch_ind *roam_synch_data,
@ -315,6 +341,22 @@ static inline QDF_STATUS csr_roam_synch_callback(struct mac_context *mac,
{
return QDF_STATUS_E_NOSUPPORT;
}
static inline QDF_STATUS
csr_roam_auth_offload_callback(struct mac_context *mac_ctx,
uint8_t vdev_id,
struct qdf_mac_addr bssid)
{
return QDF_STATUS_E_NOSUPPORT;
}
static inline QDF_STATUS
csr_process_roam_auth_offload_callback(struct mac_context *mac_ctx,
uint8_t vdev_id,
struct qdf_mac_addr roam_bssid)
{
return QDF_STATUS_E_NOSUPPORT;
}
#endif
void csr_neighbor_roam_state_transition(struct mac_context *mac_ctx,
uint8_t newstate, uint8_t session);

2
core/sme/src/common/sme_api.c
View File

@ -1085,6 +1085,8 @@ QDF_STATUS sme_hdd_ready_ind(mac_handle_t mac_handle)
msg->csr_roam_synch_cb = csr_roam_synch_callback;
msg->sme_msg_cb = sme_process_msg_callback;
msg->stop_roaming_cb = sme_stop_roaming;
msg->csr_roam_auth_event_handle_cb =
csr_roam_auth_offload_callback;
status = u_mac_post_ctrl_msg(mac_handle, (tSirMbMsg *)msg);
if (QDF_IS_STATUS_ERROR(status)) {

57
core/sme/src/csr/csr_api_roam.c
View File

@ -21474,6 +21474,63 @@ csr_roam_synch_callback(struct mac_context *mac_ctx,
return status;
}
QDF_STATUS
csr_process_roam_auth_offload_callback(struct mac_context *mac_ctx,
uint8_t vdev_id,
struct qdf_mac_addr roam_bssid)
{
struct csr_roam_info *roam_info;
struct sir_sae_info sae_info;
struct csr_roam_session *session = CSR_GET_SESSION(mac_ctx, vdev_id);
if (!session) {
sme_err("WPA3 Preauth event with invalid session id:%d",
vdev_id);
return QDF_STATUS_E_FAILURE;
}
roam_info = qdf_mem_malloc(sizeof(*roam_info));
if (!roam_info)
return QDF_STATUS_E_FAILURE;
sae_info.msg_len = sizeof(sae_info);
sae_info.vdev_id = vdev_id;
sae_info.ssid.length = session->connectedProfile.SSID.length;
qdf_mem_copy(sae_info.ssid.ssId, session->connectedProfile.SSID.ssId,
sae_info.ssid.length);
qdf_mem_copy(sae_info.peer_mac_addr.bytes,
roam_bssid.bytes, QDF_MAC_ADDR_SIZE);
roam_info->sae_info = &sae_info;
csr_roam_call_callback(mac_ctx, vdev_id, roam_info, 0,
eCSR_ROAM_SAE_COMPUTE, eCSR_ROAM_RESULT_NONE);
qdf_mem_free(roam_info);
return QDF_STATUS_SUCCESS;
}
QDF_STATUS
csr_roam_auth_offload_callback(struct mac_context *mac_ctx,
uint8_t vdev_id, struct qdf_mac_addr bssid)
{
QDF_STATUS status;
status = sme_acquire_global_lock(&mac_ctx->sme);
if (!QDF_IS_STATUS_SUCCESS(status))
return status;
status = csr_process_roam_auth_offload_callback(mac_ctx, vdev_id, bssid);
sme_release_global_lock(&mac_ctx->sme);
return status;
}
#endif
QDF_STATUS csr_update_owe_info(struct mac_context *mac,

5
core/wma/inc/wma.h
View File

@ -998,6 +998,8 @@ struct wma_wlm_stats_data {
* event in the serialized MC thread context with a timer.
* @csr_roam_synch_cb: CSR callback for firmware Roam Sync events
* @pe_roam_synch_cb: pe callback for firmware Roam Sync events
* @csr_roam_auth_event_handle_cb: CSR callback for target authentication
* offload event.
* @wmi_cmd_rsp_wake_lock: wmi command response wake lock
* @wmi_cmd_rsp_runtime_lock: wmi command response bus lock
* @active_uc_apf_mode: Setting that determines how APF is applied in
@ -1123,6 +1125,9 @@ typedef struct {
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr,
enum sir_roam_op_code reason);
QDF_STATUS (*csr_roam_auth_event_handle_cb)(struct mac_context *mac,
uint8_t vdev_id,
struct qdf_mac_addr bssid);
QDF_STATUS (*pe_roam_synch_cb)(struct mac_context *mac,
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr,

13
core/wma/inc/wma_internal.h
View File

@ -158,6 +158,19 @@ void wma_process_roam_synch_fail(WMA_HANDLE handle,
int wma_roam_synch_event_handler(void *handle, uint8_t *event,
uint32_t len);
/**
* wma_roam_auth_offload_event_handler() - Handle LFR-3.0 Roam authentication
* offload event.
* @handle: wma_handle
* @event: rso auth offload event data pointer
* @len: length of the data
*
* Handles roam authentication offload event from firmware which is triggered
* after roam candidate selection.
*/
int wma_roam_auth_offload_event_handler(WMA_HANDLE handle, uint8_t *event,
uint32_t len);
/**
* wma_mlme_roam_synch_event_handler_cb() - roam synch event handler
* @handle: wma handle

8
core/wma/inc/wma_types.h
View File

@ -718,6 +718,10 @@ QDF_STATUS wma_register_roaming_callbacks(
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr,
enum sir_roam_op_code reason),
QDF_STATUS (*csr_roam_auth_event_handle_cb)(
struct mac_context *mac,
uint8_t vdev_id,
struct qdf_mac_addr bssid),
QDF_STATUS (*pe_roam_synch_cb)(struct mac_context *mac,
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr,
@ -732,6 +736,10 @@ static inline QDF_STATUS wma_register_roaming_callbacks(
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr,
enum sir_roam_op_code reason),
QDF_STATUS (*csr_roam_auth_event_handle_cb)(
struct mac_context *mac,
uint8_t vdev_id,
struct qdf_mac_addr bssid),
QDF_STATUS (*pe_roam_synch_cb)(struct mac_context *mac,
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr,

5
core/wma/src/wma_main.c
View File

@ -3540,6 +3540,11 @@ QDF_STATUS wma_open(struct wlan_objmgr_psoc *psoc,
wmi_roam_synch_frame_event_id,
wma_roam_synch_frame_event_handler,
WMA_RX_SERIALIZER_CTX);
wmi_unified_register_event_handler(wma_handle->wmi_handle,
wmi_roam_auth_offload_event_id,
wma_roam_auth_offload_event_handler,
WMA_RX_SERIALIZER_CTX);
#endif /* WLAN_FEATURE_ROAM_OFFLOAD */
wmi_unified_register_event_handler(wma_handle->wmi_handle,
wmi_rssi_breach_event_id,

5
core/wma/src/wma_mgmt.c
View File

@ -4432,6 +4432,7 @@ QDF_STATUS wma_de_register_mgmt_frm_client(void)
* wma_register_roaming_callbacks() - Register roaming callbacks
* @csr_roam_synch_cb: CSR roam synch callback routine pointer
* @pe_roam_synch_cb: PE roam synch callback routine pointer
* @csr_roam_auth_event_handle_cb: CSR callback routine pointer
*
* Register the SME and PE callback routines with WMA for
* handling roaming
@ -4443,6 +4444,9 @@ QDF_STATUS wma_register_roaming_callbacks(
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr,
enum sir_roam_op_code reason),
QDF_STATUS (*csr_roam_auth_event_handle_cb)(struct mac_context *mac,
uint8_t vdev_id,
struct qdf_mac_addr bssid),
QDF_STATUS (*pe_roam_synch_cb)(struct mac_context *mac,
struct roam_offload_synch_ind *roam_synch_data,
struct bss_description *bss_desc_ptr,
@ -4460,6 +4464,7 @@ QDF_STATUS wma_register_roaming_callbacks(
return QDF_STATUS_E_FAILURE;
}
wma->csr_roam_synch_cb = csr_roam_synch_cb;
wma->csr_roam_auth_event_handle_cb = csr_roam_auth_event_handle_cb;
wma->pe_roam_synch_cb = pe_roam_synch_cb;
wma->pe_disconnect_cb = pe_disconnect_cb;
WMA_LOGD("Registered roam synch callbacks with WMA successfully");

63
core/wma/src/wma_scan_roam.c
View File

@ -3126,6 +3126,69 @@ int wma_roam_synch_event_handler(void *handle, uint8_t *event,
return 0;
}
int wma_roam_auth_offload_event_handler(WMA_HANDLE handle, uint8_t *event,
uint32_t len)
{
QDF_STATUS status;
tp_wma_handle wma = (tp_wma_handle) handle;
struct mac_context *mac_ctx;
wmi_roam_preauth_start_event_fixed_param *rso_auth_start_ev;
WMI_ROAM_PREAUTH_START_EVENTID_param_tlvs *param_buf;
struct qdf_mac_addr ap_bssid;
uint8_t vdev_id;
if (!event) {
wma_err_rl("received null event from target");
return -EINVAL;
}
param_buf = (WMI_ROAM_PREAUTH_START_EVENTID_param_tlvs *) event;
if (!param_buf) {
wma_err_rl("received null buf from target");
return -EINVAL;
}
rso_auth_start_ev = param_buf->fixed_param;
if (!rso_auth_start_ev) {
wma_err_rl("received null event data from target");
return -EINVAL;
}
if (rso_auth_start_ev->vdev_id > wma->max_bssid) {
wma_err_rl("received invalid vdev_id %d",
rso_auth_start_ev->vdev_id);
return -EINVAL;
}
mac_ctx = cds_get_context(QDF_MODULE_ID_PE);
if (!mac_ctx) {
wma_err("NULL mac ptr");
QDF_ASSERT(0);
return -EINVAL;
}
WMI_MAC_ADDR_TO_CHAR_ARRAY(&rso_auth_start_ev->candidate_ap_bssid,
ap_bssid.bytes);
if (qdf_is_macaddr_zero(&ap_bssid) ||
qdf_is_macaddr_broadcast(&ap_bssid) ||
qdf_is_macaddr_group(&ap_bssid)) {
wma_err_rl("Invalid bssid");
return -EINVAL;
}
vdev_id = rso_auth_start_ev->vdev_id;
wma_debug("Received Roam auth offload event for bss:%pM vdev_id:%d",
ap_bssid.bytes, vdev_id);
status = wma->csr_roam_auth_event_handle_cb(mac_ctx, vdev_id, ap_bssid);
if (QDF_IS_STATUS_ERROR(status)) {
wma_err_rl("Trigger pre-auth failed");
return -EINVAL;
}
return 0;
}
#define RSN_CAPS_SHIFT 16
/**
* wma_roam_scan_fill_self_caps() - fill capabilities