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PL286/hardware/qcom/wlan/qcwcn/wifi_hal/gscan.cpp

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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "sync.h"
#define LOG_TAG "WifiHAL"
#include <utils/Log.h>
#include <time.h>
#include <errno.h>
#include <stdlib.h>
#include "common.h"
#include "cpp_bindings.h"
#include "gscancommand.h"
#include "gscan_event_handler.h"
#define GSCAN_EVENT_WAIT_TIME_SECONDS 4
/* BSSID blacklist */
typedef struct {
int num_bssid; // number of blacklisted BSSIDs
mac_addr bssids[MAX_BLACKLIST_BSSID]; // blacklisted BSSIDs
} wifi_bssid_params;
/* Used to handle gscan command events from driver/firmware.*/
typedef struct gscan_event_handlers_s {
GScanCommandEventHandler *gscanStartCmdEventHandler;
GScanCommandEventHandler *gScanSetBssidHotlistCmdEventHandler;
GScanCommandEventHandler *gScanSetSignificantChangeCmdEventHandler;
GScanCommandEventHandler *gScanSetSsidHotlistCmdEventHandler;
GScanCommandEventHandler *gScanSetPnoListCmdEventHandler;
GScanCommandEventHandler *gScanPnoSetPasspointListCmdEventHandler;
} gscan_event_handlers;
wifi_error initializeGscanHandlers(hal_info *info)
{
info->gscan_handlers = (gscan_event_handlers *)malloc(sizeof(gscan_event_handlers));
if (info->gscan_handlers) {
memset(info->gscan_handlers, 0, sizeof(gscan_event_handlers));
}
else {
ALOGE("%s: Allocation of gscan event handlers failed",
__FUNCTION__);
return WIFI_ERROR_OUT_OF_MEMORY;
}
return WIFI_SUCCESS;
}
wifi_error cleanupGscanHandlers(hal_info *info)
{
gscan_event_handlers* event_handlers;
if (info && info->gscan_handlers) {
event_handlers = (gscan_event_handlers*) info->gscan_handlers;
if (event_handlers->gscanStartCmdEventHandler) {
delete event_handlers->gscanStartCmdEventHandler;
}
if (event_handlers->gScanSetBssidHotlistCmdEventHandler) {
delete event_handlers->gScanSetBssidHotlistCmdEventHandler;
}
if (event_handlers->gScanSetSignificantChangeCmdEventHandler) {
delete event_handlers->gScanSetSignificantChangeCmdEventHandler;
}
if (event_handlers->gScanSetSsidHotlistCmdEventHandler) {
delete event_handlers->gScanSetSsidHotlistCmdEventHandler;
}
if (event_handlers->gScanSetPnoListCmdEventHandler) {
delete event_handlers->gScanSetPnoListCmdEventHandler;
}
if (event_handlers->gScanPnoSetPasspointListCmdEventHandler) {
delete event_handlers->gScanPnoSetPasspointListCmdEventHandler;
}
memset(event_handlers, 0, sizeof(gscan_event_handlers));
return WIFI_SUCCESS;
}
ALOGE ("%s: info or info->gscan_handlers NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Implementation of the API functions exposed in gscan.h */
wifi_error wifi_get_valid_channels(wifi_interface_handle handle,
int band, int max_channels, wifi_channel *channels, int *num_channels)
{
int requestId, ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(handle);
wifi_handle wifiHandle = getWifiHandle(handle);
/* No request id from caller, so generate one and pass it on to the driver.
* Generate one randomly.
*/
requestId = get_requestid();
ALOGV("%s: RequestId:%d band:%d max_channels:%d", __FUNCTION__,
requestId, band, max_channels);
if (channels == NULL) {
ALOGE("%s: NULL channels pointer provided. Exit.",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
gScanCommand = new GScanCommand(
wifiHandle,
requestId,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_GET_VALID_CHANNELS);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
requestId) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_GET_VALID_CHANNELS_CONFIG_PARAM_WIFI_BAND,
band) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_GET_VALID_CHANNELS_CONFIG_PARAM_MAX_CHANNELS,
max_channels) )
{
goto cleanup;
}
gScanCommand->attr_end(nlData);
/* Populate the input received from caller/framework. */
gScanCommand->setMaxChannels(max_channels);
gScanCommand->setChannels(channels);
gScanCommand->setNumChannelsPtr(num_channels);
/* Send the msg and wait for a response. */
ret = gScanCommand->requestResponse();
if (ret) {
ALOGE("%s: Error %d happened. ", __FUNCTION__, ret);
}
cleanup:
delete gScanCommand;
return mapErrorKernelToWifiHAL(ret);
}
wifi_error wifi_get_gscan_capabilities(wifi_interface_handle handle,
wifi_gscan_capabilities *capabilities)
{
wifi_error ret = WIFI_SUCCESS;
wifi_handle wifiHandle = getWifiHandle(handle);
hal_info *info = getHalInfo(wifiHandle);
if (!(info->supported_feature_set & WIFI_FEATURE_GSCAN)) {
ALOGE("%s: GSCAN is not supported by driver", __FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
if (capabilities == NULL) {
ALOGE("%s: NULL capabilities pointer provided. Exit.", __FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
memcpy(capabilities, &info->capa.gscan_capa, sizeof(wifi_gscan_capabilities));
return mapErrorKernelToWifiHAL(ret);
}
wifi_error wifi_start_gscan(wifi_request_id id,
wifi_interface_handle iface,
wifi_scan_cmd_params params,
wifi_scan_result_handler handler)
{
int ret = 0;
u32 i, j;
GScanCommand *gScanCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
u32 num_scan_buckets, numChannelSpecs;
wifi_scan_bucket_spec bucketSpec;
struct nlattr *nlBuckectSpecList;
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanStartCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanStartCmdEventHandler = event_handlers->gscanStartCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_GSCAN)) {
ALOGE("%s: GSCAN is not supported by driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
ALOGV("%s: RequestId:%d ", __FUNCTION__, id);
/* Wi-Fi HAL doesn't need to check if a similar request to start gscan was
* made earlier. If start_gscan() is called while another gscan is already
* running, the request will be sent down to driver and firmware. If new
* request is successfully honored, then Wi-Fi HAL will use the new request
* id for the gScanStartCmdEventHandler object.
*/
gScanCommand = new GScanCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_START);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
num_scan_buckets = (unsigned int)params.num_buckets > MAX_BUCKETS ?
MAX_BUCKETS : params.num_buckets;
ALOGV("%s: Base Period:%d Max_ap_per_scan:%d "
"Threshold_percent:%d Threshold_num_scans:%d "
"num_buckets:%d", __FUNCTION__, params.base_period,
params.max_ap_per_scan, params.report_threshold_percent,
params.report_threshold_num_scans, num_scan_buckets);
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
id) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SCAN_CMD_PARAMS_BASE_PERIOD,
params.base_period) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SCAN_CMD_PARAMS_MAX_AP_PER_SCAN,
params.max_ap_per_scan) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_GSCAN_SCAN_CMD_PARAMS_REPORT_THRESHOLD_PERCENT,
params.report_threshold_percent) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_GSCAN_SCAN_CMD_PARAMS_REPORT_THRESHOLD_NUM_SCANS,
params.report_threshold_num_scans) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_GSCAN_SCAN_CMD_PARAMS_NUM_BUCKETS,
num_scan_buckets))
{
goto cleanup;
}
nlBuckectSpecList =
gScanCommand->attr_start(QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC);
/* Add NL attributes for scan bucket specs . */
for (i = 0; i < num_scan_buckets; i++) {
bucketSpec = params.buckets[i];
numChannelSpecs = (unsigned int)bucketSpec.num_channels > MAX_CHANNELS ?
MAX_CHANNELS : bucketSpec.num_channels;
ALOGV("%s: Index: %d Bucket Id:%d Band:%d Period:%d ReportEvent:%d "
"numChannelSpecs:%d max_period:%d base:%d step_count:%d",
__FUNCTION__, i, bucketSpec.bucket, bucketSpec.band,
bucketSpec.period, bucketSpec.report_events,
numChannelSpecs, bucketSpec.max_period,
bucketSpec.base, bucketSpec.step_count);
struct nlattr *nlBucketSpec = gScanCommand->attr_start(i);
if (gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC_INDEX,
bucketSpec.bucket) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC_BAND,
bucketSpec.band) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC_PERIOD,
bucketSpec.period) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC_REPORT_EVENTS,
bucketSpec.report_events) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC_NUM_CHANNEL_SPECS,
numChannelSpecs) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC_MAX_PERIOD,
bucketSpec.max_period) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC_BASE,
bucketSpec.base) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_BUCKET_SPEC_STEP_COUNT,
bucketSpec.step_count))
{
goto cleanup;
}
struct nlattr *nl_channelSpecList =
gScanCommand->attr_start(QCA_WLAN_VENDOR_ATTR_GSCAN_CHANNEL_SPEC);
/* Add NL attributes for scan channel specs . */
for (j = 0; j < numChannelSpecs; j++) {
struct nlattr *nl_channelSpec = gScanCommand->attr_start(j);
wifi_scan_channel_spec channel_spec = bucketSpec.channels[j];
ALOGV("%s: Channel Spec Index:%d Channel:%d Dwell Time:%d "
"passive:%d", __FUNCTION__, j, channel_spec.channel,
channel_spec.dwellTimeMs, channel_spec.passive);
if ( gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_CHANNEL_SPEC_CHANNEL,
channel_spec.channel) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_CHANNEL_SPEC_DWELL_TIME,
channel_spec.dwellTimeMs) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_GSCAN_CHANNEL_SPEC_PASSIVE,
channel_spec.passive) )
{
goto cleanup;
}
gScanCommand->attr_end(nl_channelSpec);
}
gScanCommand->attr_end(nl_channelSpecList);
gScanCommand->attr_end(nlBucketSpec);
}
gScanCommand->attr_end(nlBuckectSpecList);
gScanCommand->attr_end(nlData);
/* Set the callback handler functions for related events. */
GScanCallbackHandler callbackHandler;
memset(&callbackHandler, 0, sizeof(callbackHandler));
callbackHandler.on_full_scan_result = handler.on_full_scan_result;
callbackHandler.on_scan_event = handler.on_scan_event;
/* Create an object to handle the related events from firmware/driver. */
if (gScanStartCmdEventHandler == NULL) {
gScanStartCmdEventHandler = new GScanCommandEventHandler(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_START,
callbackHandler);
if (gScanStartCmdEventHandler == NULL) {
ALOGE("%s: Error gScanStartCmdEventHandler NULL", __FUNCTION__);
ret = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
event_handlers->gscanStartCmdEventHandler = gScanStartCmdEventHandler;
} else {
gScanStartCmdEventHandler->setCallbackHandler(callbackHandler);
}
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s : requestResponse Error:%d", __FUNCTION__, ret);
goto cleanup;
}
if (gScanStartCmdEventHandler != NULL) {
gScanStartCmdEventHandler->set_request_id(id);
gScanStartCmdEventHandler->enableEventHandling();
}
cleanup:
delete gScanCommand;
/* Disable Event Handling if ret != 0 */
if (ret && gScanStartCmdEventHandler) {
ALOGI("%s: Error ret:%d, disable event handling",
__FUNCTION__, ret);
gScanStartCmdEventHandler->disableEventHandling();
}
return mapErrorKernelToWifiHAL(ret);
}
wifi_error wifi_stop_gscan(wifi_request_id id,
wifi_interface_handle iface)
{
int ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanStartCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanStartCmdEventHandler = event_handlers->gscanStartCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_GSCAN)) {
ALOGE("%s: GSCAN is not supported by driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
if (gScanStartCmdEventHandler == NULL ||
gScanStartCmdEventHandler->isEventHandlingEnabled() == false) {
ALOGE("%s: GSCAN isn't running or already stopped. "
"Nothing to do. Exit", __FUNCTION__);
return WIFI_ERROR_NOT_AVAILABLE;
}
gScanCommand = new GScanCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_STOP);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
ret = gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
id);
if (ret < 0)
goto cleanup;
gScanCommand->attr_end(nlData);
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
}
/* Disable Event Handling. */
if (gScanStartCmdEventHandler) {
gScanStartCmdEventHandler->disableEventHandling();
}
cleanup:
delete gScanCommand;
return mapErrorKernelToWifiHAL(ret);
}
/* Set the GSCAN BSSID Hotlist. */
wifi_error wifi_set_bssid_hotlist(wifi_request_id id,
wifi_interface_handle iface,
wifi_bssid_hotlist_params params,
wifi_hotlist_ap_found_handler handler)
{
int i, numAp, ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData, *nlApThresholdParamList;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanSetBssidHotlistCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanSetBssidHotlistCmdEventHandler =
event_handlers->gScanSetBssidHotlistCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_GSCAN)) {
ALOGE("%s: GSCAN is not supported by driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
/* Wi-Fi HAL doesn't need to check if a similar request to set bssid
* hotlist was made earlier. If set_bssid_hotlist() is called while
* another one is running, the request will be sent down to driver and
* firmware. If the new request is successfully honored, then Wi-Fi HAL
* will use the new request id for the gScanSetBssidHotlistCmdEventHandler
* object.
*/
gScanCommand =
new GScanCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_SET_BSSID_HOTLIST);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
numAp = (unsigned int)params.num_bssid > MAX_HOTLIST_APS ?
MAX_HOTLIST_APS : params.num_bssid;
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
id) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_BSSID_HOTLIST_PARAMS_LOST_AP_SAMPLE_SIZE,
params.lost_ap_sample_size) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_BSSID_HOTLIST_PARAMS_NUM_AP,
numAp))
{
goto cleanup;
}
ALOGV("%s: lost_ap_sample_size:%d numAp:%d", __FUNCTION__,
params.lost_ap_sample_size, numAp);
/* Add the vendor specific attributes for the NL command. */
nlApThresholdParamList =
gScanCommand->attr_start(
QCA_WLAN_VENDOR_ATTR_GSCAN_AP_THRESHOLD_PARAM);
if (!nlApThresholdParamList)
goto cleanup;
/* Add nested NL attributes for AP Threshold Param. */
for (i = 0; i < numAp; i++) {
ap_threshold_param apThreshold = params.ap[i];
struct nlattr *nlApThresholdParam = gScanCommand->attr_start(i);
if (!nlApThresholdParam)
goto cleanup;
if (gScanCommand->put_addr(
QCA_WLAN_VENDOR_ATTR_GSCAN_AP_THRESHOLD_PARAM_BSSID,
apThreshold.bssid) ||
gScanCommand->put_s32(
QCA_WLAN_VENDOR_ATTR_GSCAN_AP_THRESHOLD_PARAM_RSSI_LOW,
apThreshold.low) ||
gScanCommand->put_s32(
QCA_WLAN_VENDOR_ATTR_GSCAN_AP_THRESHOLD_PARAM_RSSI_HIGH,
apThreshold.high))
{
goto cleanup;
}
ALOGV("%s: Index:%d BssId: %hhx:%hhx:%hhx:%hhx:%hhx:%hhx "
"Threshold low:%d high:%d", __FUNCTION__, i,
apThreshold.bssid[0], apThreshold.bssid[1],
apThreshold.bssid[2], apThreshold.bssid[3],
apThreshold.bssid[4], apThreshold.bssid[5],
apThreshold.low, apThreshold.high);
gScanCommand->attr_end(nlApThresholdParam);
}
gScanCommand->attr_end(nlApThresholdParamList);
gScanCommand->attr_end(nlData);
GScanCallbackHandler callbackHandler;
memset(&callbackHandler, 0, sizeof(callbackHandler));
callbackHandler.on_hotlist_ap_found = handler.on_hotlist_ap_found;
callbackHandler.on_hotlist_ap_lost = handler.on_hotlist_ap_lost;
/* Create an object of the event handler class to take care of the
* asychronous events on the north-bound.
*/
if (gScanSetBssidHotlistCmdEventHandler == NULL) {
gScanSetBssidHotlistCmdEventHandler = new GScanCommandEventHandler(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_SET_BSSID_HOTLIST,
callbackHandler);
if (gScanSetBssidHotlistCmdEventHandler == NULL) {
ALOGE("%s: Error instantiating "
"gScanSetBssidHotlistCmdEventHandler.", __FUNCTION__);
ret = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
event_handlers->gScanSetBssidHotlistCmdEventHandler =
gScanSetBssidHotlistCmdEventHandler;
} else {
gScanSetBssidHotlistCmdEventHandler->setCallbackHandler(callbackHandler);
}
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
goto cleanup;
}
if (gScanSetBssidHotlistCmdEventHandler != NULL) {
gScanSetBssidHotlistCmdEventHandler->set_request_id(id);
gScanSetBssidHotlistCmdEventHandler->enableEventHandling();
}
cleanup:
delete gScanCommand;
/* Disable Event Handling if ret != 0 */
if (ret && gScanSetBssidHotlistCmdEventHandler) {
ALOGI("%s: Error ret:%d, disable event handling",
__FUNCTION__, ret);
gScanSetBssidHotlistCmdEventHandler->disableEventHandling();
}
return mapErrorKernelToWifiHAL(ret);
}
wifi_error wifi_reset_bssid_hotlist(wifi_request_id id,
wifi_interface_handle iface)
{
int ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanSetBssidHotlistCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanSetBssidHotlistCmdEventHandler =
event_handlers->gScanSetBssidHotlistCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_GSCAN)) {
ALOGE("%s: GSCAN is not supported by driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
if (gScanSetBssidHotlistCmdEventHandler == NULL ||
(gScanSetBssidHotlistCmdEventHandler->isEventHandlingEnabled() ==
false)) {
ALOGE("wifi_reset_bssid_hotlist: GSCAN bssid_hotlist isn't set. "
"Nothing to do. Exit");
return WIFI_ERROR_NOT_AVAILABLE;
}
gScanCommand = new GScanCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_RESET_BSSID_HOTLIST);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
ret = gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID, id);
if (ret < 0)
goto cleanup;
gScanCommand->attr_end(nlData);
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
}
/* Disable Event Handling. */
if (gScanSetBssidHotlistCmdEventHandler) {
gScanSetBssidHotlistCmdEventHandler->disableEventHandling();
}
cleanup:
delete gScanCommand;
return mapErrorKernelToWifiHAL(ret);
}
/* Set the GSCAN Significant AP Change list. */
wifi_error wifi_set_significant_change_handler(wifi_request_id id,
wifi_interface_handle iface,
wifi_significant_change_params params,
wifi_significant_change_handler handler)
{
int i, numAp, ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData, *nlApThresholdParamList;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanSetSignificantChangeCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanSetSignificantChangeCmdEventHandler =
event_handlers->gScanSetSignificantChangeCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_GSCAN)) {
ALOGE("%s: GSCAN is not supported by driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
/* Wi-Fi HAL doesn't need to check if a similar request to set significant
* change list was made earlier. If set_significant_change() is called while
* another one is running, the request will be sent down to driver and
* firmware. If the new request is successfully honored, then Wi-Fi HAL
* will use the new request id for the gScanSetSignificantChangeCmdEventHandler
* object.
*/
gScanCommand = new GScanCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_SET_SIGNIFICANT_CHANGE);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
numAp = (unsigned int)params.num_bssid > MAX_SIGNIFICANT_CHANGE_APS ?
MAX_SIGNIFICANT_CHANGE_APS : params.num_bssid;
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
id) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SIGNIFICANT_CHANGE_PARAMS_RSSI_SAMPLE_SIZE,
params.rssi_sample_size) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SIGNIFICANT_CHANGE_PARAMS_LOST_AP_SAMPLE_SIZE,
params.lost_ap_sample_size) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SIGNIFICANT_CHANGE_PARAMS_MIN_BREACHING,
params.min_breaching) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SIGNIFICANT_CHANGE_PARAMS_NUM_AP,
numAp))
{
goto cleanup;
}
ALOGV("%s: Number of AP params:%d Rssi_sample_size:%d "
"lost_ap_sample_size:%d min_breaching:%d", __FUNCTION__,
numAp, params.rssi_sample_size, params.lost_ap_sample_size,
params.min_breaching);
/* Add the vendor specific attributes for the NL command. */
nlApThresholdParamList =
gScanCommand->attr_start(
QCA_WLAN_VENDOR_ATTR_GSCAN_AP_THRESHOLD_PARAM);
if (!nlApThresholdParamList)
goto cleanup;
/* Add nested NL attributes for AP Threshold Param list. */
for (i = 0; i < numAp; i++) {
ap_threshold_param apThreshold = params.ap[i];
struct nlattr *nlApThresholdParam = gScanCommand->attr_start(i);
if (!nlApThresholdParam)
goto cleanup;
if ( gScanCommand->put_addr(
QCA_WLAN_VENDOR_ATTR_GSCAN_AP_THRESHOLD_PARAM_BSSID,
apThreshold.bssid) ||
gScanCommand->put_s32(
QCA_WLAN_VENDOR_ATTR_GSCAN_AP_THRESHOLD_PARAM_RSSI_LOW,
apThreshold.low) ||
gScanCommand->put_s32(
QCA_WLAN_VENDOR_ATTR_GSCAN_AP_THRESHOLD_PARAM_RSSI_HIGH,
apThreshold.high))
{
goto cleanup;
}
ALOGV("%s: ap[%d].bssid:%hhx:%hhx:%hhx:%hhx:%hhx:%hhx "
"ap[%d].low:%d ap[%d].high:%d", __FUNCTION__,
i,
apThreshold.bssid[0], apThreshold.bssid[1],
apThreshold.bssid[2], apThreshold.bssid[3],
apThreshold.bssid[4], apThreshold.bssid[5],
i, apThreshold.low, i, apThreshold.high);
gScanCommand->attr_end(nlApThresholdParam);
}
gScanCommand->attr_end(nlApThresholdParamList);
gScanCommand->attr_end(nlData);
GScanCallbackHandler callbackHandler;
memset(&callbackHandler, 0, sizeof(callbackHandler));
callbackHandler.on_significant_change = handler.on_significant_change;
/* Create an object of the event handler class to take care of the
* asychronous events on the north-bound.
*/
if (gScanSetSignificantChangeCmdEventHandler == NULL) {
gScanSetSignificantChangeCmdEventHandler =
new GScanCommandEventHandler(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_SET_SIGNIFICANT_CHANGE,
callbackHandler);
if (gScanSetSignificantChangeCmdEventHandler == NULL) {
ALOGE("%s: Error in instantiating, "
"gScanSetSignificantChangeCmdEventHandler.",
__FUNCTION__);
ret = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
event_handlers->gScanSetSignificantChangeCmdEventHandler =
gScanSetSignificantChangeCmdEventHandler;
} else {
gScanSetSignificantChangeCmdEventHandler->setCallbackHandler(callbackHandler);
}
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
goto cleanup;
}
if (gScanSetSignificantChangeCmdEventHandler != NULL) {
gScanSetSignificantChangeCmdEventHandler->set_request_id(id);
gScanSetSignificantChangeCmdEventHandler->enableEventHandling();
}
cleanup:
/* Disable Event Handling if ret != 0 */
if (ret && gScanSetSignificantChangeCmdEventHandler) {
ALOGI("%s: Error ret:%d, disable event handling",
__FUNCTION__, ret);
gScanSetSignificantChangeCmdEventHandler->disableEventHandling();
}
delete gScanCommand;
return mapErrorKernelToWifiHAL(ret);
}
/* Clear the GSCAN Significant AP change list. */
wifi_error wifi_reset_significant_change_handler(wifi_request_id id,
wifi_interface_handle iface)
{
int ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanSetSignificantChangeCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanSetSignificantChangeCmdEventHandler =
event_handlers->gScanSetSignificantChangeCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_GSCAN)) {
ALOGE("%s: GSCAN is not supported by driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
if (gScanSetSignificantChangeCmdEventHandler == NULL ||
(gScanSetSignificantChangeCmdEventHandler->isEventHandlingEnabled() ==
false)) {
ALOGE("wifi_reset_significant_change_handler: GSCAN significant_change"
" isn't set. Nothing to do. Exit");
return WIFI_ERROR_NOT_AVAILABLE;
}
gScanCommand =
new GScanCommand
(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_RESET_SIGNIFICANT_CHANGE);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
ret = gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
id);
if (ret < 0)
goto cleanup;
gScanCommand->attr_end(nlData);
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
}
/* Disable Event Handling. */
if (gScanSetSignificantChangeCmdEventHandler) {
gScanSetSignificantChangeCmdEventHandler->disableEventHandling();
}
cleanup:
delete gScanCommand;
return mapErrorKernelToWifiHAL(ret);
}
/* Get the GSCAN cached scan results. */
wifi_error wifi_get_cached_gscan_results(wifi_interface_handle iface,
byte flush, int max,
wifi_cached_scan_results *results,
int *num)
{
int requestId, ret = 0, retRequestRsp = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
if (!(info->supported_feature_set & WIFI_FEATURE_GSCAN)) {
ALOGE("%s: GSCAN is not supported by driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
/* No request id from caller, so generate one and pass it on to the driver. */
/* Generate it randomly */
requestId = get_requestid();
if (results == NULL || num == NULL) {
ALOGE("%s: NULL pointer provided. Exit.",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
gScanCommand = new GScanCommand(
wifiHandle,
requestId,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_GSCAN_GET_CACHED_RESULTS);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
ret = gScanCommand->allocRspParams(eGScanGetCachedResultsRspParams);
if (ret != 0) {
ALOGE("%s: Failed to allocate memory for response struct. Error:%d",
__FUNCTION__, ret);
goto cleanup;
}
ret = gScanCommand->allocCachedResultsTemp(max, results);
if (ret != 0) {
ALOGE("%s: Failed to allocate memory for temp gscan cached list. "
"Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Clear the destination cached results list before copying results. */
memset(results, 0, max * sizeof(wifi_cached_scan_results));
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
if (ret < 0)
goto cleanup;
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
requestId) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_GSCAN_GET_CACHED_SCAN_RESULTS_CONFIG_PARAM_FLUSH,
flush) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_GET_CACHED_SCAN_RESULTS_CONFIG_PARAM_MAX,
max))
{
goto cleanup;
}
ALOGV("%s: flush:%d max:%d", __FUNCTION__, flush, max);
gScanCommand->attr_end(nlData);
retRequestRsp = gScanCommand->requestResponse();
if (retRequestRsp != 0) {
ALOGE("%s: requestResponse Error:%d",
__FUNCTION__, retRequestRsp);
if (retRequestRsp != -ETIMEDOUT) {
/* Proceed to cleanup & return no results */
goto cleanup;
}
}
/* No more data, copy the parsed results into the caller's results array */
ret = gScanCommand->copyCachedScanResults(num, results);
ALOGV("%s: max: %d, num:%d", __FUNCTION__, max, *num);
if (!ret) {
/* If requestResponse returned a TIMEOUT */
if (retRequestRsp == -ETIMEDOUT) {
if (*num > 0) {
/* Mark scan results as incomplete for the last scan_id */
results[(*num)-1].flags = WIFI_SCAN_FLAG_INTERRUPTED;
ALOGV("%s: Timeout happened. Mark scan results as incomplete "
"for scan_id:%d", __FUNCTION__, results[(*num)-1].scan_id);
ret = WIFI_SUCCESS;
} else
ret = WIFI_ERROR_TIMED_OUT;
}
}
cleanup:
gScanCommand->freeRspParams(eGScanGetCachedResultsRspParams);
delete gScanCommand;
return mapErrorKernelToWifiHAL(ret);
}
/* Random MAC OUI for PNO */
wifi_error wifi_set_scanning_mac_oui(wifi_interface_handle handle, oui scan_oui)
{
int ret = 0;
struct nlattr *nlData;
WifiVendorCommand *vCommand = NULL;
interface_info *iinfo = getIfaceInfo(handle);
wifi_handle wifiHandle = getWifiHandle(handle);
vCommand = new WifiVendorCommand(wifiHandle, 0,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_SCANNING_MAC_OUI);
if (vCommand == NULL) {
ALOGE("%s: Error vCommand NULL", __FUNCTION__);
return WIFI_ERROR_OUT_OF_MEMORY;
}
/* create the message */
ret = vCommand->create();
if (ret < 0)
goto cleanup;
ret = vCommand->set_iface_id(iinfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = vCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
ALOGV("%s: MAC_OUI - %02x:%02x:%02x", __FUNCTION__,
scan_oui[0], scan_oui[1], scan_oui[2]);
/* Add the fixed part of the mac_oui to the nl command */
ret = vCommand->put_bytes(
QCA_WLAN_VENDOR_ATTR_SET_SCANNING_MAC_OUI,
(char *)scan_oui,
WIFI_SCANNING_MAC_OUI_LENGTH);
if (ret < 0)
goto cleanup;
vCommand->attr_end(nlData);
ret = vCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
goto cleanup;
}
cleanup:
delete vCommand;
return mapErrorKernelToWifiHAL(ret);
}
GScanCommand::GScanCommand(wifi_handle handle, int id, u32 vendor_id,
u32 subcmd)
: WifiVendorCommand(handle, id, vendor_id, subcmd)
{
/* Initialize the member data variables here */
mGetCachedResultsRspParams = NULL;
mChannels = NULL;
mMaxChannels = 0;
mNumChannelsPtr = NULL;
mRequestId = id;
memset(&mHandler, 0,sizeof(mHandler));
}
GScanCommand::~GScanCommand()
{
unregisterVendorHandler(mVendor_id, mSubcmd);
}
/* This function implements creation of Vendor command */
int GScanCommand::create() {
int ret = mMsg.create(NL80211_CMD_VENDOR, 0, 0);
if (ret < 0) {
return ret;
}
/* Insert the oui in the msg */
ret = mMsg.put_u32(NL80211_ATTR_VENDOR_ID, mVendor_id);
if (ret < 0)
goto out;
/* Insert the subcmd in the msg */
ret = mMsg.put_u32(NL80211_ATTR_VENDOR_SUBCMD, mSubcmd);
if (ret < 0)
goto out;
ALOGV("%s: mVendor_id = %d, Subcmd = %d.",
__FUNCTION__, mVendor_id, mSubcmd);
out:
return ret;
}
int GScanCommand::requestResponse()
{
return WifiCommand::requestResponse(mMsg);
}
int GScanCommand::handleResponse(WifiEvent &reply) {
int i = 0;
int ret = WIFI_SUCCESS;
u32 val;
WifiVendorCommand::handleResponse(reply);
struct nlattr *tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_MAX + 1];
nla_parse(tbVendor, QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_MAX,
(struct nlattr *)mVendorData,mDataLen, NULL);
switch(mSubcmd)
{
case QCA_NL80211_VENDOR_SUBCMD_GSCAN_GET_VALID_CHANNELS:
{
if (!tbVendor[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_NUM_CHANNELS]) {
ALOGE("%s: QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_NUM_CHANNELS"
" not found", __FUNCTION__);
ret = WIFI_ERROR_INVALID_ARGS;
break;
}
val = nla_get_u32(tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_NUM_CHANNELS]);
val = val > (unsigned int)mMaxChannels ?
(unsigned int)mMaxChannels : val;
*mNumChannelsPtr = val;
/* Extract the list of channels. */
if (*mNumChannelsPtr > 0 ) {
if (!tbVendor[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_CHANNELS]) {
ALOGE("%s: QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_CHANNELS"
" not found", __FUNCTION__);
ret = WIFI_ERROR_INVALID_ARGS;
break;
}
nla_memcpy(mChannels,
tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_CHANNELS],
sizeof(wifi_channel) * (*mNumChannelsPtr));
}
char buf[256];
size_t len = 0;
for (i = 0; i < *mNumChannelsPtr && len < sizeof(buf); i++) {
len += snprintf(buf + len, sizeof(buf) - len, "%u ",
*(mChannels + i));
}
ALOGV("%s: Num Channels %d: List of valid channels are: %s",
__FUNCTION__, *mNumChannelsPtr, buf);
}
break;
case QCA_NL80211_VENDOR_SUBCMD_GSCAN_GET_CACHED_RESULTS:
{
wifi_request_id id;
u32 numResults = 0;
int firstScanIdInPatch = -1;
if (!tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_REQUEST_ID]) {
ALOGE("%s: GSCAN_RESULTS_REQUEST_ID not"
"found", __FUNCTION__);
ret = WIFI_ERROR_INVALID_ARGS;
break;
}
id = nla_get_u32(
tbVendor[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_REQUEST_ID]
);
/* If this is not for us, just ignore it. */
if (id != mRequestId) {
ALOGV("%s: Event has Req. ID:%d <> ours:%d",
__FUNCTION__, id, mRequestId);
break;
}
if (!tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_NUM_RESULTS_AVAILABLE]) {
ALOGE("%s: GSCAN_RESULTS_NUM_RESULTS_AVAILABLE not"
"found", __FUNCTION__);
ret = WIFI_ERROR_INVALID_ARGS;
break;
}
/* Read num of cached scan results in this data chunk. Note that
* this value doesn't represent the number of unique gscan scan Ids
* since the first scan id in this new chunk could be similar to
* the last scan id in the previous chunk.
*/
numResults = nla_get_u32(tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_NUM_RESULTS_AVAILABLE]);
ALOGV("%s: num Cached results in this fragment:%d",
__FUNCTION__, numResults);
if (!mGetCachedResultsRspParams) {
ALOGE("%s: mGetCachedResultsRspParams is NULL, exit.",
__FUNCTION__);
ret = WIFI_ERROR_INVALID_ARGS;
break;
}
/* To support fragmentation from firmware, monitor the
* MORE_DATA flag and cache results until MORE_DATA = 0.
*/
if (!tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_MORE_DATA]) {
ALOGE("%s: GSCAN_RESULTS_NUM_RESULTS_MORE_DATA "
"not found", __FUNCTION__);
ret = WIFI_ERROR_INVALID_ARGS;
break;
} else {
mGetCachedResultsRspParams->more_data = nla_get_u8(
tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_MORE_DATA]);
}
/* No data in this chunk so skip this chunk */
if (numResults == 0) {
return NL_SKIP;
}
if (!tbVendor[QCA_WLAN_VENDOR_ATTR_GSCAN_CACHED_RESULTS_SCAN_ID]) {
ALOGE("GSCAN_CACHED_RESULTS_SCAN_ID not found");
ret = WIFI_ERROR_INVALID_ARGS;
break;
}
/* Get the first Scan-Id in this chuck of cached results. */
firstScanIdInPatch = nla_get_u32(tbVendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_CACHED_RESULTS_SCAN_ID]);
ALOGV("More data: %d, firstScanIdInPatch: %d, lastProcessedScanId: %d",
mGetCachedResultsRspParams->more_data, firstScanIdInPatch,
mGetCachedResultsRspParams->lastProcessedScanId);
if (numResults) {
if (firstScanIdInPatch !=
mGetCachedResultsRspParams->lastProcessedScanId) {
/* New result scan Id block, update the starting index. */
mGetCachedResultsRspParams->cachedResultsStartingIndex++;
}
ret = gscan_get_cached_results(
mGetCachedResultsRspParams->cached_results,
tbVendor);
/* If a parsing error occurred, exit and proceed for cleanup. */
if (ret)
break;
}
}
break;
default:
/* Error case should not happen print log */
ALOGE("%s: Wrong GScan subcmd response received %d",
__FUNCTION__, mSubcmd);
}
/* A parsing error occurred, do the cleanup of gscan result lists. */
if (ret) {
switch(mSubcmd)
{
case QCA_NL80211_VENDOR_SUBCMD_GSCAN_GET_CACHED_RESULTS:
{
ALOGE("%s: Parsing error, free CachedResultsRspParams",
__FUNCTION__);
freeRspParams(eGScanGetCachedResultsRspParams);
}
break;
default:
ALOGE("%s: Wrong GScan subcmd received %d", __FUNCTION__, mSubcmd);
}
}
return NL_SKIP;
}
/* Called to parse and extract cached results. */
int GScanCommand:: gscan_get_cached_results(
wifi_cached_scan_results *cached_results,
struct nlattr **tb_vendor)
{
u32 j = 0;
struct nlattr *scanResultsInfo, *wifiScanResultsInfo;
int rem = 0, remResults = 0;
u32 len = 0, numScanResults = 0;
u32 i = mGetCachedResultsRspParams->cachedResultsStartingIndex;
ALOGV("%s: starting counter: %d", __FUNCTION__, i);
for (scanResultsInfo = (struct nlattr *) nla_data(tb_vendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_CACHED_RESULTS_LIST]),
rem = nla_len(tb_vendor[
QCA_WLAN_VENDOR_ATTR_GSCAN_CACHED_RESULTS_LIST]);
nla_ok(scanResultsInfo, rem) && i < mGetCachedResultsRspParams->max;
scanResultsInfo = nla_next(scanResultsInfo, &(rem)))
{
struct nlattr *tb2[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_MAX + 1];
nla_parse(tb2, QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_MAX,
(struct nlattr *) nla_data(scanResultsInfo),
nla_len(scanResultsInfo), NULL);
if (!
tb2[
QCA_WLAN_VENDOR_ATTR_GSCAN_CACHED_RESULTS_SCAN_ID
])
{
ALOGE("%s: GSCAN_CACHED_RESULTS_SCAN_ID"
" not found", __FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
cached_results[i].scan_id =
nla_get_u32(
tb2[
QCA_WLAN_VENDOR_ATTR_GSCAN_CACHED_RESULTS_SCAN_ID
]);
if (!
tb2[
QCA_WLAN_VENDOR_ATTR_GSCAN_CACHED_RESULTS_FLAGS
])
{
ALOGE("%s: GSCAN_CACHED_RESULTS_FLAGS "
"not found", __FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
cached_results[i].flags =
nla_get_u32(
tb2[QCA_WLAN_VENDOR_ATTR_GSCAN_CACHED_RESULTS_FLAGS]);
if (!tb2[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_BUCKETS_SCANNED])
{
ALOGI("%s: GSCAN_RESULTS_BUCKETS_SCANNED"
"not found", __FUNCTION__);
} else {
cached_results[i].buckets_scanned = nla_get_u32(
tb2[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_BUCKETS_SCANNED]);
}
if (!
tb2[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_NUM_RESULTS_AVAILABLE
])
{
ALOGE("%s: RESULTS_NUM_RESULTS_AVAILABLE "
"not found", __FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
numScanResults =
nla_get_u32(
tb2[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_NUM_RESULTS_AVAILABLE]);
if (mGetCachedResultsRspParams->lastProcessedScanId !=
cached_results[i].scan_id) {
j = 0; /* reset wifi_scan_result counter */
cached_results[i].num_results = 0;
ALOGV("parsing: *lastProcessedScanId [%d] !="
" cached_results[%d].scan_id:%d, j:%d "
"numScanResults: %d",
mGetCachedResultsRspParams->lastProcessedScanId, i,
cached_results[i].scan_id, j, numScanResults);
mGetCachedResultsRspParams->lastProcessedScanId =
cached_results[i].scan_id;
mGetCachedResultsRspParams->wifiScanResultsStartingIndex = 0;
/* Increment the number of cached scan results received */
mGetCachedResultsRspParams->num_cached_results++;
} else {
j = mGetCachedResultsRspParams->wifiScanResultsStartingIndex;
ALOGV("parsing: *lastProcessedScanId [%d] == "
"cached_results[%d].scan_id:%d, j:%d "
"numScanResults:%d",
mGetCachedResultsRspParams->lastProcessedScanId, i,
cached_results[i].scan_id, j, numScanResults);
}
ALOGV("%s: scan_id %d ", __FUNCTION__,
cached_results[i].scan_id);
ALOGV("%s: flags %u ", __FUNCTION__,
cached_results[i].flags);
for (wifiScanResultsInfo = (struct nlattr *) nla_data(tb2[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_LIST]),
remResults = nla_len(tb2[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_LIST]);
nla_ok(wifiScanResultsInfo, remResults);
wifiScanResultsInfo = nla_next(wifiScanResultsInfo, &(remResults)))
{
struct nlattr *tb3[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_MAX + 1];
nla_parse(tb3, QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_MAX,
(struct nlattr *) nla_data(wifiScanResultsInfo),
nla_len(wifiScanResultsInfo), NULL);
if (j < MAX_AP_CACHE_PER_SCAN) {
if (!
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_TIME_STAMP
])
{
ALOGE("%s: "
"RESULTS_SCAN_RESULT_TIME_STAMP not found",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
cached_results[i].results[j].ts =
nla_get_u64(
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_TIME_STAMP
]);
if (!
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_SSID
])
{
ALOGE("%s: "
"RESULTS_SCAN_RESULT_SSID not found",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
len = nla_len(tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_SSID]);
len =
sizeof(cached_results[i].results[j].ssid) <= len ?
sizeof(cached_results[i].results[j].ssid) : len;
memcpy((void *)&cached_results[i].results[j].ssid,
nla_data(
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_SSID]),
len);
if (!
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_BSSID
])
{
ALOGE("%s: "
"RESULTS_SCAN_RESULT_BSSID not found",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
len = nla_len(
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_BSSID]);
len =
sizeof(cached_results[i].results[j].bssid) <= len ?
sizeof(cached_results[i].results[j].bssid) : len;
memcpy(&cached_results[i].results[j].bssid,
nla_data(
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_BSSID]),
len);
if (!
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_CHANNEL
])
{
ALOGE("%s: "
"RESULTS_SCAN_RESULT_CHANNEL not found",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
cached_results[i].results[j].channel =
nla_get_u32(
tb3[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_CHANNEL]);
if (!
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_RSSI
])
{
ALOGE("%s: "
"RESULTS_SCAN_RESULT_RSSI not found",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
cached_results[i].results[j].rssi =
get_s32(
tb3[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_RSSI]);
if (!
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_RTT
])
{
ALOGE("%s: "
"RESULTS_SCAN_RESULT_RTT not found",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
cached_results[i].results[j].rtt =
nla_get_u32(
tb3[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_RTT]);
if (!
tb3[
QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_RTT_SD
])
{
ALOGE("%s: "
"RESULTS_SCAN_RESULT_RTT_SD not found",
__FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
cached_results[i].results[j].rtt_sd =
nla_get_u32(
tb3[QCA_WLAN_VENDOR_ATTR_GSCAN_RESULTS_SCAN_RESULT_RTT_SD]);
#ifdef QC_HAL_DEBUG
/* Enable these prints for debugging if needed. */
ALOGD("%s: ts %" PRId64, __FUNCTION__,
cached_results[i].results[j].ts);
ALOGD("%s: SSID %s ", __FUNCTION__,
cached_results[i].results[j].ssid);
ALOGD("%s: BSSID: %02x:%02x:%02x:%02x:%02x:%02x \n",
__FUNCTION__, cached_results[i].results[j].bssid[0],
cached_results[i].results[j].bssid[1],
cached_results[i].results[j].bssid[2],
cached_results[i].results[j].bssid[3],
cached_results[i].results[j].bssid[4],
cached_results[i].results[j].bssid[5]);
ALOGD("%s: channel %d ", __FUNCTION__,
cached_results[i].results[j].channel);
ALOGD("%s: rssi %d ", __FUNCTION__,
cached_results[i].results[j].rssi);
ALOGD("%s: rtt %" PRId64, __FUNCTION__,
cached_results[i].results[j].rtt);
ALOGD("%s: rtt_sd %" PRId64, __FUNCTION__,
cached_results[i].results[j].rtt_sd);
#endif
/* Increment loop index for next record */
j++;
/* For this scan id, update the wifiScanResultsStartingIndex
* and number of cached results parsed so far.
*/
mGetCachedResultsRspParams->wifiScanResultsStartingIndex = j;
cached_results[i].num_results++;
} else {
/* We already parsed and stored up to max wifi_scan_results
* specified by the caller. Now, continue to loop over NL
* entries in order to properly update NL parsing pointer
* so it points to the next scan_id results.
*/
ALOGD("%s: loop index:%d > max num"
" of wifi_scan_results:%d for gscan cached results"
" bucket:%d. Dummy loop", __FUNCTION__,
j, MAX_AP_CACHE_PER_SCAN, i);
}
}
ALOGV("%s: cached_results[%d].num_results: %d ", __FUNCTION__,
i, cached_results[i].num_results);
/* Increment loop index for next cached scan result record */
i++;
}
/* Increment starting index of filling cached results received */
if (mGetCachedResultsRspParams->num_cached_results)
mGetCachedResultsRspParams->cachedResultsStartingIndex =
mGetCachedResultsRspParams->num_cached_results - 1;
return WIFI_SUCCESS;
}
/* Set the GSCAN BSSID Hotlist. */
wifi_error wifi_set_epno_list(wifi_request_id id,
wifi_interface_handle iface,
const wifi_epno_params *epno_params,
wifi_epno_handler handler)
{
int i, ret = 0, num_networks;
GScanCommand *gScanCommand;
struct nlattr *nlData, *nlPnoParamList;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanSetPnoListCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanSetPnoListCmdEventHandler =
event_handlers->gScanSetPnoListCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_HAL_EPNO)) {
ALOGE("%s: Enhanced PNO is not supported by the driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
/* Wi-Fi HAL doesn't need to check if a similar request to set ePNO
* list was made earlier. If wifi_set_epno_list() is called while
* another one is running, the request will be sent down to driver and
* firmware. If the new request is successfully honored, then Wi-Fi HAL
* will use the new request id for the gScanSetPnoListCmdEventHandler
* object.
*/
gScanCommand =
new GScanCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_PNO_SET_LIST);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0) {
ALOGE("%s: Failed to create the NL msg. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0) {
ALOGE("%s: Failed to set iface id. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData) {
ALOGE("%s: Failed to add attribute NL80211_ATTR_VENDOR_DATA. Error:%d",
__FUNCTION__, ret);
goto cleanup;
}
num_networks = (unsigned int)epno_params->num_networks > MAX_EPNO_NETWORKS ?
MAX_EPNO_NETWORKS : epno_params->num_networks;
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
id) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_EPNO_MIN5GHZ_RSSI,
epno_params->min5GHz_rssi) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_EPNO_MIN24GHZ_RSSI,
epno_params->min24GHz_rssi) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_EPNO_INITIAL_SCORE_MAX,
epno_params->initial_score_max) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_EPNO_CURRENT_CONNECTION_BONUS,
epno_params->current_connection_bonus) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_EPNO_SAME_NETWORK_BONUS,
epno_params->same_network_bonus) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_EPNO_SECURE_BONUS,
epno_params->secure_bonus) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_EPNO_BAND5GHZ_BONUS,
epno_params->band5GHz_bonus) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_PNO_SET_LIST_PARAM_NUM_NETWORKS,
num_networks))
{
ALOGE("%s: Failed to add vendor atributes. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Add the vendor specific attributes for the NL command. */
nlPnoParamList =
gScanCommand->attr_start(
QCA_WLAN_VENDOR_ATTR_PNO_SET_LIST_PARAM_EPNO_NETWORKS_LIST);
if (!nlPnoParamList) {
ALOGE("%s: Failed to add attr. PNO_SET_LIST_PARAM_EPNO_NETWORKS_LIST. "
"Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Add nested NL attributes for ePno List. */
for (i = 0; i < num_networks; i++) {
wifi_epno_network pnoNetwork = epno_params->networks[i];
struct nlattr *nlPnoNetwork = gScanCommand->attr_start(i);
if (!nlPnoNetwork) {
ALOGE("%s: Failed attr_start for nlPnoNetwork. Error:%d",
__FUNCTION__, ret);
goto cleanup;
}
if (gScanCommand->put_string(
QCA_WLAN_VENDOR_ATTR_PNO_SET_LIST_PARAM_EPNO_NETWORK_SSID,
pnoNetwork.ssid) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_PNO_SET_LIST_PARAM_EPNO_NETWORK_FLAGS,
pnoNetwork.flags) ||
gScanCommand->put_u8(
QCA_WLAN_VENDOR_ATTR_PNO_SET_LIST_PARAM_EPNO_NETWORK_AUTH_BIT,
pnoNetwork.auth_bit_field))
{
ALOGE("%s: Failed to add PNO_SET_LIST_PARAM_EPNO_NETWORK_*. "
"Error:%d", __FUNCTION__, ret);
goto cleanup;
}
gScanCommand->attr_end(nlPnoNetwork);
}
gScanCommand->attr_end(nlPnoParamList);
gScanCommand->attr_end(nlData);
GScanCallbackHandler callbackHandler;
memset(&callbackHandler, 0, sizeof(callbackHandler));
callbackHandler.on_pno_network_found = handler.on_network_found;
/* Create an object of the event handler class to take care of the
* asychronous events on the north-bound.
*/
if (gScanSetPnoListCmdEventHandler == NULL) {
gScanSetPnoListCmdEventHandler = new GScanCommandEventHandler(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_PNO_SET_LIST,
callbackHandler);
if (gScanSetPnoListCmdEventHandler == NULL) {
ALOGE("%s: Error instantiating "
"gScanSetPnoListCmdEventHandler.", __FUNCTION__);
ret = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
event_handlers->gScanSetPnoListCmdEventHandler =
gScanSetPnoListCmdEventHandler;
} else {
gScanSetPnoListCmdEventHandler->setCallbackHandler(callbackHandler);
}
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
goto cleanup;
}
if (gScanSetPnoListCmdEventHandler != NULL) {
gScanSetPnoListCmdEventHandler->set_request_id(id);
gScanSetPnoListCmdEventHandler->enableEventHandling();
}
cleanup:
delete gScanCommand;
/* Disable Event Handling if ret != 0 */
if (ret && gScanSetPnoListCmdEventHandler) {
ALOGI("%s: Error ret:%d, disable event handling",
__FUNCTION__, ret);
gScanSetPnoListCmdEventHandler->disableEventHandling();
}
return mapErrorKernelToWifiHAL(ret);
}
/* Reset the ePNO list - no ePNO networks should be matched after this */
wifi_error wifi_reset_epno_list(wifi_request_id id, wifi_interface_handle iface)
{
int ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
if (!(info->supported_feature_set & WIFI_FEATURE_HAL_EPNO)) {
ALOGE("%s: Enhanced PNO is not supported by the driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
gScanCommand = new GScanCommand(wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_PNO_SET_LIST);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0) {
ALOGE("%s: Failed to create the NL msg. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0) {
ALOGE("%s: Failed to set iface id. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData) {
ALOGE("%s: Failed to add attribute NL80211_ATTR_VENDOR_DATA. Error:%d",
__FUNCTION__, ret);
goto cleanup;
}
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
id) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_PNO_SET_LIST_PARAM_NUM_NETWORKS,
EPNO_NO_NETWORKS))
{
ALOGE("%s: Failed to add vendor atributes Error:%d", __FUNCTION__, ret);
goto cleanup;
}
gScanCommand->attr_end(nlData);
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
}
cleanup:
delete gScanCommand;
return mapErrorKernelToWifiHAL(ret);
}
/* Set the ePNO Passpoint List. */
wifi_error wifi_set_passpoint_list(wifi_request_id id,
wifi_interface_handle iface, int num,
wifi_passpoint_network *networks,
wifi_passpoint_event_handler handler)
{
int i, ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData, *nlPasspointNetworksParamList;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanPnoSetPasspointListCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanPnoSetPasspointListCmdEventHandler =
event_handlers->gScanPnoSetPasspointListCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_HAL_EPNO)) {
ALOGE("%s: Enhanced PNO is not supported by the driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
/* Wi-Fi HAL doesn't need to check if a similar request to set ePNO
* passpoint list was made earlier. If wifi_set_passpoint_list() is called
* while another one is running, the request will be sent down to driver and
* firmware. If the new request is successfully honored, then Wi-Fi HAL
* will use the new request id for the
* gScanPnoSetPasspointListCmdEventHandler object.
*/
gScanCommand =
new GScanCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_PNO_SET_PASSPOINT_LIST);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0) {
ALOGE("%s: Failed to create the NL msg. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0) {
ALOGE("%s: Failed to set iface id. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData) {
ALOGE("%s: Failed to add attribute NL80211_ATTR_VENDOR_DATA. Error:%d",
__FUNCTION__, ret);
goto cleanup;
}
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID,
id) ||
gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_PNO_PASSPOINT_LIST_PARAM_NUM,
num))
{
ALOGE("%s: Failed to add vendor atributes. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Add the vendor specific attributes for the NL command. */
nlPasspointNetworksParamList =
gScanCommand->attr_start(
QCA_WLAN_VENDOR_ATTR_PNO_PASSPOINT_LIST_PARAM_NETWORK_ARRAY);
if (!nlPasspointNetworksParamList) {
ALOGE("%s: Failed attr_start for PASSPOINT_LIST_PARAM_NETWORK_ARRAY. "
"Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Add nested NL attributes for Passpoint List param. */
for (i = 0; i < num; i++) {
wifi_passpoint_network passpointNetwork = networks[i];
struct nlattr *nlPasspointNetworkParam = gScanCommand->attr_start(i);
if (!nlPasspointNetworkParam) {
ALOGE("%s: Failed attr_start for nlPasspointNetworkParam. "
"Error:%d", __FUNCTION__, ret);
goto cleanup;
}
if (gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_PNO_PASSPOINT_NETWORK_PARAM_ID,
passpointNetwork.id) ||
gScanCommand->put_string(
QCA_WLAN_VENDOR_ATTR_PNO_PASSPOINT_NETWORK_PARAM_REALM,
passpointNetwork.realm) ||
gScanCommand->put_bytes(
QCA_WLAN_VENDOR_ATTR_PNO_PASSPOINT_NETWORK_PARAM_ROAM_CNSRTM_ID,
(char*)passpointNetwork.roamingConsortiumIds,
16 * sizeof(int64_t)) ||
gScanCommand->put_bytes(
QCA_WLAN_VENDOR_ATTR_PNO_PASSPOINT_NETWORK_PARAM_ROAM_PLMN,
(char*)passpointNetwork.plmn, 3 * sizeof(u8)))
{
ALOGE("%s: Failed to add PNO_PASSPOINT_NETWORK_PARAM_ROAM_* attr. "
"Error:%d", __FUNCTION__, ret);
goto cleanup;
}
gScanCommand->attr_end(nlPasspointNetworkParam);
}
gScanCommand->attr_end(nlPasspointNetworksParamList);
gScanCommand->attr_end(nlData);
GScanCallbackHandler callbackHandler;
memset(&callbackHandler, 0, sizeof(callbackHandler));
callbackHandler.on_passpoint_network_found =
handler.on_passpoint_network_found;
/* Create an object of the event handler class to take care of the
* asychronous events on the north-bound.
*/
if (gScanPnoSetPasspointListCmdEventHandler == NULL) {
gScanPnoSetPasspointListCmdEventHandler = new GScanCommandEventHandler(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_PNO_SET_PASSPOINT_LIST,
callbackHandler);
if (gScanPnoSetPasspointListCmdEventHandler == NULL) {
ALOGE("%s: Error instantiating "
"gScanPnoSetPasspointListCmdEventHandler.", __FUNCTION__);
ret = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
event_handlers->gScanPnoSetPasspointListCmdEventHandler =
gScanPnoSetPasspointListCmdEventHandler;
} else {
gScanPnoSetPasspointListCmdEventHandler->setCallbackHandler(callbackHandler);
}
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
goto cleanup;
}
if (gScanPnoSetPasspointListCmdEventHandler != NULL) {
gScanPnoSetPasspointListCmdEventHandler->set_request_id(id);
gScanPnoSetPasspointListCmdEventHandler->enableEventHandling();
}
cleanup:
delete gScanCommand;
/* Disable Event Handling if ret != 0 */
if (ret && gScanPnoSetPasspointListCmdEventHandler) {
ALOGI("%s: Error ret:%d, disable event handling",
__FUNCTION__, ret);
gScanPnoSetPasspointListCmdEventHandler->disableEventHandling();
}
return mapErrorKernelToWifiHAL(ret);
}
wifi_error wifi_reset_passpoint_list(wifi_request_id id,
wifi_interface_handle iface)
{
int ret = 0;
GScanCommand *gScanCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
gscan_event_handlers* event_handlers;
GScanCommandEventHandler *gScanPnoSetPasspointListCmdEventHandler;
event_handlers = (gscan_event_handlers*)info->gscan_handlers;
gScanPnoSetPasspointListCmdEventHandler =
event_handlers->gScanPnoSetPasspointListCmdEventHandler;
if (!(info->supported_feature_set & WIFI_FEATURE_HAL_EPNO)) {
ALOGE("%s: Enhanced PNO is not supported by the driver",
__FUNCTION__);
return WIFI_ERROR_NOT_SUPPORTED;
}
if (gScanPnoSetPasspointListCmdEventHandler == NULL ||
(gScanPnoSetPasspointListCmdEventHandler->isEventHandlingEnabled() ==
false)) {
ALOGE("wifi_reset_passpoint_list: ePNO passpoint_list isn't set. "
"Nothing to do. Exit.");
return WIFI_ERROR_NOT_AVAILABLE;
}
gScanCommand = new GScanCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_PNO_RESET_PASSPOINT_LIST);
if (gScanCommand == NULL) {
ALOGE("%s: Error GScanCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = gScanCommand->create();
if (ret < 0) {
ALOGE("%s: Failed to create the NL msg. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Set the interface Id of the message. */
ret = gScanCommand->set_iface_id(ifaceInfo->name);
if (ret < 0) {
ALOGE("%s: Failed to set iface id. Error:%d", __FUNCTION__, ret);
goto cleanup;
}
/* Add the vendor specific attributes for the NL command. */
nlData = gScanCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData) {
ALOGE("%s: Failed to add attribute NL80211_ATTR_VENDOR_DATA. Error:%d",
__FUNCTION__, ret);
goto cleanup;
}
ret = gScanCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_GSCAN_SUBCMD_CONFIG_PARAM_REQUEST_ID, id);
if (ret < 0) {
ALOGE("%s: Failed to add vendor data attributes. Error:%d",
__FUNCTION__, ret);
goto cleanup;
}
gScanCommand->attr_end(nlData);
ret = gScanCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: requestResponse Error:%d",__FUNCTION__, ret);
}
/* Disable Event Handling. */
if (gScanPnoSetPasspointListCmdEventHandler) {
gScanPnoSetPasspointListCmdEventHandler->disableEventHandling();
}
cleanup:
delete gScanCommand;
return mapErrorKernelToWifiHAL(ret);
}
int GScanCommand::allocCachedResultsTemp(int max,
wifi_cached_scan_results *cached_results)
{
/* Alloc memory for "max" number of cached results. */
mGetCachedResultsRspParams->cached_results =
(wifi_cached_scan_results*)
malloc(max * sizeof(wifi_cached_scan_results));
if (!mGetCachedResultsRspParams->cached_results) {
ALOGE("%s: Failed to allocate memory for "
"mGetCachedResultsRspParams->cached_results.",
__FUNCTION__);
return WIFI_ERROR_OUT_OF_MEMORY;
}
memset(mGetCachedResultsRspParams->cached_results, 0,
max * sizeof(wifi_cached_scan_results));
mGetCachedResultsRspParams->max = max;
return WIFI_SUCCESS;
}
/*
* Allocates memory for the subCmd response struct and initializes status = -1
*/
int GScanCommand::allocRspParams(eGScanRspRarams cmd)
{
int ret = 0;
switch(cmd)
{
case eGScanGetCachedResultsRspParams:
mGetCachedResultsRspParams = (GScanGetCachedResultsRspParams *)
malloc(sizeof(GScanGetCachedResultsRspParams));
if (!mGetCachedResultsRspParams)
ret = -1;
else {
mGetCachedResultsRspParams->num_cached_results = 0;
mGetCachedResultsRspParams->more_data = false;
mGetCachedResultsRspParams->cachedResultsStartingIndex = -1;
mGetCachedResultsRspParams->lastProcessedScanId = -1;
mGetCachedResultsRspParams->wifiScanResultsStartingIndex = -1;
mGetCachedResultsRspParams->max = 0;
mGetCachedResultsRspParams->cached_results = NULL;
}
break;
default:
ALOGD("%s: Wrong request for alloc.", __FUNCTION__);
ret = -1;
}
return ret;
}
void GScanCommand::freeRspParams(eGScanRspRarams cmd)
{
switch(cmd)
{
case eGScanGetCachedResultsRspParams:
if (mGetCachedResultsRspParams) {
if (mGetCachedResultsRspParams->cached_results) {
free(mGetCachedResultsRspParams->cached_results);
mGetCachedResultsRspParams->cached_results = NULL;
}
free(mGetCachedResultsRspParams);
mGetCachedResultsRspParams = NULL;
}
break;
default:
ALOGD("%s: Wrong request for free.", __FUNCTION__);
}
}
wifi_error GScanCommand::copyCachedScanResults(
int *numResults,
wifi_cached_scan_results *cached_results)
{
wifi_error ret = WIFI_SUCCESS;
int i;
wifi_cached_scan_results *cachedResultRsp;
if (mGetCachedResultsRspParams && cached_results)
{
/* Populate the number of parsed cached results. */
*numResults = mGetCachedResultsRspParams->num_cached_results;
for (i = 0; i < *numResults; i++) {
cachedResultRsp = &mGetCachedResultsRspParams->cached_results[i];
cached_results[i].scan_id = cachedResultRsp->scan_id;
cached_results[i].flags = cachedResultRsp->flags;
cached_results[i].num_results = cachedResultRsp->num_results;
cached_results[i].buckets_scanned = cachedResultRsp->buckets_scanned;
if (!cached_results[i].num_results) {
ALOGI("Error: cached_results[%d].num_results=0", i);
continue;
}
ALOGV("copyCachedScanResults: "
"cached_results[%d].num_results : %d",
i, cached_results[i].num_results);
memcpy(cached_results[i].results,
cachedResultRsp->results,
cached_results[i].num_results * sizeof(wifi_scan_result));
}
} else {
ALOGE("%s: mGetCachedResultsRspParams is NULL", __FUNCTION__);
*numResults = 0;
ret = WIFI_ERROR_INVALID_ARGS;
}
return ret;
}
void GScanCommand::setMaxChannels(int max_channels) {
mMaxChannels = max_channels;
}
void GScanCommand::setChannels(int *channels) {
mChannels = channels;
}
void GScanCommand::setNumChannelsPtr(int *num_channels) {
mNumChannelsPtr = num_channels;
}