/*
* Copyright (C) 2016 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 <errno.h>
#include "common.h"
#include "roamcommand.h"
#include "vendor_definitions.h"
RoamCommand::RoamCommand(wifi_handle handle, int id, u32 vendor_id, u32 subcmd)
: WifiVendorCommand(handle, id, vendor_id, subcmd)
{
}
RoamCommand::~RoamCommand()
{
}
/* This function implements creation of Vendor command */
int RoamCommand::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 RoamCommand::requestResponse()
{
return WifiCommand::requestResponse(mMsg);
}
wifi_error wifi_set_bssid_blacklist(wifi_request_id id,
wifi_interface_handle iface,
wifi_bssid_params params)
{
int ret = 0, i;
RoamCommand *roamCommand;
struct nlattr *nlData, *nlBssids;
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;
}
for (i = 0; i < params.num_bssid; i++) {
ALOGV("BSSID: %d : %02x:%02x:%02x:%02x:%02x:%02x", i,
params.bssids[i][0], params.bssids[i][1],
params.bssids[i][2], params.bssids[i][3],
params.bssids[i][4], params.bssids[i][5]);
}
roamCommand =
new RoamCommand(wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_ROAM);
if (roamCommand == NULL) {
ALOGE("%s: Error roamCommand NULL", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = roamCommand->create();
if (ret < 0)
goto cleanup;
/* Set the interface Id of the message. */
ret = roamCommand->set_iface_id(ifaceInfo->name);
if (ret < 0)
goto cleanup;
/* Add the vendor specific attributes for the NL command. */
nlData = roamCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData)
goto cleanup;
if (roamCommand->put_u32(QCA_WLAN_VENDOR_ATTR_ROAMING_SUBCMD,
QCA_WLAN_VENDOR_ATTR_ROAM_SUBCMD_SET_BLACKLIST_BSSID) ||
roamCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID,
id) ||
roamCommand->put_u32(
QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_NUM_BSSID,
params.num_bssid)) {
goto cleanup;
}
nlBssids = roamCommand->attr_start(
QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS);
for (i = 0; i < params.num_bssid; i++) {
struct nlattr *nl_ssid = roamCommand->attr_start(i);
if (roamCommand->put_addr(
QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_BSSID,
(u8 *)params.bssids[i])) {
goto cleanup;
}
roamCommand->attr_end(nl_ssid);
}
roamCommand->attr_end(nlBssids);
roamCommand->attr_end(nlData);
ret = roamCommand->requestResponse();
if (ret != 0) {
ALOGE("wifi_set_bssid_blacklist(): requestResponse Error:%d", ret);
}
cleanup:
delete roamCommand;
return (wifi_error)ret;
}
wifi_error wifi_set_ssid_white_list(wifi_request_id id, wifi_interface_handle iface,
int num_networks, ssid_t *ssid_list)
{
wifi_error result = WIFI_SUCCESS;
int ret = 0, i;
RoamCommand *roamCommand;
struct nlattr *nlData, *nlSsids;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
char ssid[MAX_SSID_LENGTH + 1];
ALOGV("%s: Number of SSIDs : %d", __FUNCTION__, num_networks);
roamCommand = new RoamCommand(
wifiHandle,
id,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_ROAM);
if (roamCommand == NULL) {
ALOGE("%s: Failed to create object of RoamCommand class", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = roamCommand->create();
if (ret < 0) {
ALOGE("%s: Failed to create NL message, Error: %d", __FUNCTION__, ret);
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
/* Set the interface Id of the message. */
ret = roamCommand->set_iface_id(ifaceInfo->name);
if (ret < 0) {
ALOGE("%s: Failed to set interface Id of message, Error: %d", __FUNCTION__, ret);
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
/* Add the vendor specific attributes for the NL command. */
nlData = roamCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData) {
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
if (roamCommand->put_u32(QCA_WLAN_VENDOR_ATTR_ROAMING_SUBCMD,
QCA_WLAN_VENDOR_ATTR_ROAM_SUBCMD_SSID_WHITE_LIST) ||
roamCommand->put_u32(QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID, id) ||
roamCommand->put_u32(QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_WHITE_LIST_SSID_NUM_NETWORKS,
num_networks)) {
ALOGE("%s: Failed to add vendor atributes, Error: %d", __FUNCTION__, ret);
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
nlSsids = roamCommand->attr_start(QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_WHITE_LIST_SSID_LIST);
for (i = 0; i < num_networks; i++) {
struct nlattr *nl_ssid = roamCommand->attr_start(i);
memcpy(ssid, ssid_list[i].ssid_str, ssid_list[i].length);
ssid[ssid_list[i].length] = '\0';
ALOGV("ssid[%d] : %s", i, ssid);
if (roamCommand->put_bytes(QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_WHITE_LIST_SSID, ssid,
(ssid_list[i].length + 1))) {
ALOGE("%s: Failed to add ssid atribute, Error: %d", __FUNCTION__, ret);
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
roamCommand->attr_end(nl_ssid);
}
roamCommand->attr_end(nlSsids);
roamCommand->attr_end(nlData);
ret = roamCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: Failed to send request, Error:%d", __FUNCTION__, ret);
result = WIFI_ERROR_UNKNOWN;
}
cleanup:
delete roamCommand;
return result;
}
wifi_error wifi_get_roaming_capabilities(wifi_interface_handle iface,
wifi_roaming_capabilities *caps)
{
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
if (!caps) {
ALOGE("%s: Invalid Buffer provided. Exit", __FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
if (!info) {
ALOGE("%s: hal_info is NULL", __FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
memcpy(caps, &info->capa.roaming_capa, sizeof(wifi_roaming_capabilities));
return WIFI_SUCCESS;
}
wifi_error wifi_configure_roaming(wifi_interface_handle iface, wifi_roaming_config *roaming_config)
{
wifi_error ret;
int requestId;
wifi_bssid_params bssid_params;
wifi_handle wifiHandle = getWifiHandle(iface);
hal_info *info = getHalInfo(wifiHandle);
if (!roaming_config) {
ALOGE("%s: Invalid Buffer provided. Exit", __FUNCTION__);
return WIFI_ERROR_INVALID_ARGS;
}
/* No request id from caller, so generate one and pass it on to the driver.
* Generate it randomly.
*/
requestId = get_requestid();
/* Set bssid blacklist */
if (roaming_config->num_blacklist_bssid > info->capa.roaming_capa.max_blacklist_size) {
ALOGE("%s: Number of blacklist bssids(%d) provided is more than maximum blacklist bssids(%d)"
" supported", __FUNCTION__, roaming_config->num_blacklist_bssid,
info->capa.roaming_capa.max_blacklist_size);
return WIFI_ERROR_NOT_SUPPORTED;
}
bssid_params.num_bssid = roaming_config->num_blacklist_bssid;
memcpy(bssid_params.bssids, roaming_config->blacklist_bssid,
(bssid_params.num_bssid * sizeof(mac_addr)));
ret = wifi_set_bssid_blacklist(requestId, iface, bssid_params);
if (ret != WIFI_SUCCESS) {
ALOGE("%s: Failed to configure blacklist bssids", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Set ssid whitelist */
if (roaming_config->num_whitelist_ssid > info->capa.roaming_capa.max_whitelist_size) {
ALOGE("%s: Number of whitelist ssid(%d) provided is more than maximum whitelist ssids(%d) "
"supported", __FUNCTION__, roaming_config->num_whitelist_ssid,
info->capa.roaming_capa.max_whitelist_size);
return WIFI_ERROR_NOT_SUPPORTED;
}
ret = wifi_set_ssid_white_list(requestId, iface, roaming_config->num_whitelist_ssid,
roaming_config->whitelist_ssid);
if (ret != WIFI_SUCCESS)
ALOGE("%s: Failed to configure whitelist ssids", __FUNCTION__);
return ret;
}
/* Enable/disable firmware roaming */
wifi_error wifi_enable_firmware_roaming(wifi_interface_handle iface, fw_roaming_state_t state)
{
wifi_error result = WIFI_SUCCESS;
int requestId, ret;
RoamCommand *roamCommand;
struct nlattr *nlData;
interface_info *ifaceInfo = getIfaceInfo(iface);
wifi_handle wifiHandle = getWifiHandle(iface);
qca_roaming_policy policy;
ALOGV("%s: set firmware roam state : %d", __FUNCTION__, state);
if (state == ROAMING_ENABLE) {
policy = QCA_ROAMING_ALLOWED_WITHIN_ESS;
} else if(state == ROAMING_DISABLE) {
policy = QCA_ROAMING_NOT_ALLOWED;
} else {
ALOGE("%s: Invalid state provided: %d. Exit \n", __FUNCTION__, state);
return WIFI_ERROR_INVALID_ARGS;
}
/* No request id from caller, so generate one and pass it on to the driver.
* Generate it randomly.
*/
requestId = get_requestid();
roamCommand =
new RoamCommand(wifiHandle,
requestId,
OUI_QCA,
QCA_NL80211_VENDOR_SUBCMD_ROAMING);
if (roamCommand == NULL) {
ALOGE("%s: Failed to create object of RoamCommand class", __FUNCTION__);
return WIFI_ERROR_UNKNOWN;
}
/* Create the NL message. */
ret = roamCommand->create();
if (ret < 0) {
ALOGE("%s: Failed to create NL message, Error: %d", __FUNCTION__, ret);
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
/* Set the interface Id of the message. */
ret = roamCommand->set_iface_id(ifaceInfo->name);
if (ret < 0) {
ALOGE("%s: Failed to set interface Id of message, Error: %d", __FUNCTION__, ret);
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
/* Add the vendor specific attributes for the NL command. */
nlData = roamCommand->attr_start(NL80211_ATTR_VENDOR_DATA);
if (!nlData) {
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
if (roamCommand->put_u32(QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY, policy)) {
ALOGE("%s: Failed to add roaming policy atribute, Error: %d", __FUNCTION__, ret);
result = WIFI_ERROR_UNKNOWN;
goto cleanup;
}
roamCommand->attr_end(nlData);
ret = roamCommand->requestResponse();
if (ret != 0) {
ALOGE("%s: Failed to send request, Error:%d", __FUNCTION__, ret);
if (ret == -EBUSY)
result = WIFI_ERROR_BUSY;
else
result = WIFI_ERROR_UNKNOWN;
}
cleanup:
delete roamCommand;
return result;
}