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/*
* 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 <android-base/logging.h>
#include "hidl_return_util.h"
#include "hidl_struct_util.h"
#include "wifi_ap_iface.h"
#include "wifi_status_util.h"
namespace android {
namespace hardware {
namespace wifi {
namespace V1_6 {
namespace implementation {
using hidl_return_util::validateAndCall;
WifiApIface::WifiApIface(const std::string& ifname, const std::vector<std::string>& instances,
const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util)
: ifname_(ifname),
instances_(instances),
legacy_hal_(legacy_hal),
iface_util_(iface_util),
is_valid_(true) {}
void WifiApIface::invalidate() {
legacy_hal_.reset();
is_valid_ = false;
}
bool WifiApIface::isValid() {
return is_valid_;
}
std::string WifiApIface::getName() {
return ifname_;
}
void WifiApIface::removeInstance(std::string instance) {
instances_.erase(std::remove(instances_.begin(), instances_.end(), instance), instances_.end());
}
Return<void> WifiApIface::getName(getName_cb hidl_status_cb) {
return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
&WifiApIface::getNameInternal, hidl_status_cb);
}
Return<void> WifiApIface::getType(getType_cb hidl_status_cb) {
return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
&WifiApIface::getTypeInternal, hidl_status_cb);
}
Return<void> WifiApIface::setCountryCode(const hidl_array<int8_t, 2>& code,
setCountryCode_cb hidl_status_cb) {
return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
&WifiApIface::setCountryCodeInternal, hidl_status_cb, code);
}
Return<void> WifiApIface::getValidFrequenciesForBand(V1_0::WifiBand band,
getValidFrequenciesForBand_cb hidl_status_cb) {
return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
&WifiApIface::getValidFrequenciesForBandInternal, hidl_status_cb, band);
}
Return<void> WifiApIface::setMacAddress(const hidl_array<uint8_t, 6>& mac,
setMacAddress_cb hidl_status_cb) {
return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
&WifiApIface::setMacAddressInternal, hidl_status_cb, mac);
}
Return<void> WifiApIface::getFactoryMacAddress(getFactoryMacAddress_cb hidl_status_cb) {
return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
&WifiApIface::getFactoryMacAddressInternal, hidl_status_cb,
instances_.size() > 0 ? instances_[0] : ifname_);
}
Return<void> WifiApIface::resetToFactoryMacAddress(resetToFactoryMacAddress_cb hidl_status_cb) {
return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
&WifiApIface::resetToFactoryMacAddressInternal, hidl_status_cb);
}
Return<void> WifiApIface::getBridgedInstances(getBridgedInstances_cb hidl_status_cb) {
return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
&WifiApIface::getBridgedInstancesInternal, hidl_status_cb);
}
std::pair<WifiStatus, std::string> WifiApIface::getNameInternal() {
return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
}
std::pair<WifiStatus, IfaceType> WifiApIface::getTypeInternal() {
return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::AP};
}
WifiStatus WifiApIface::setCountryCodeInternal(const std::array<int8_t, 2>& code) {
legacy_hal::wifi_error legacy_status = legacy_hal_.lock()->setCountryCode(
instances_.size() > 0 ? instances_[0] : ifname_, code);
return createWifiStatusFromLegacyError(legacy_status);
}
std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
WifiApIface::getValidFrequenciesForBandInternal(V1_0::WifiBand band) {
static_assert(sizeof(WifiChannelInMhz) == sizeof(uint32_t), "Size mismatch");
legacy_hal::wifi_error legacy_status;
std::vector<uint32_t> valid_frequencies;
std::tie(legacy_status, valid_frequencies) = legacy_hal_.lock()->getValidFrequenciesForBand(
instances_.size() > 0 ? instances_[0] : ifname_,
hidl_struct_util::convertHidlWifiBandToLegacy(band));
return {createWifiStatusFromLegacyError(legacy_status), valid_frequencies};
}
WifiStatus WifiApIface::setMacAddressInternal(const std::array<uint8_t, 6>& mac) {
// Support random MAC up to 2 interfaces
if (instances_.size() == 2) {
int rbyte = 1;
for (auto const& intf : instances_) {
std::array<uint8_t, 6> rmac = mac;
// reverse the bits to avoid collision
rmac[rbyte] = 0xff - rmac[rbyte];
if (!iface_util_.lock()->setMacAddress(intf, rmac)) {
LOG(INFO) << "Failed to set random mac address on " << intf;
return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
}
rbyte++;
}
}
// It also needs to set mac address for bridged interface, otherwise the mac
// address of bridged interface will be changed after one of instance
// down.
if (!iface_util_.lock()->setMacAddress(ifname_, mac)) {
LOG(ERROR) << "Fail to config MAC for interface " << ifname_;
return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
}
return createWifiStatus(WifiStatusCode::SUCCESS);
}
std::pair<WifiStatus, std::array<uint8_t, 6>> WifiApIface::getFactoryMacAddressInternal(
const std::string& ifaceName) {
std::array<uint8_t, 6> mac = iface_util_.lock()->getFactoryMacAddress(ifaceName);
if (mac[0] == 0 && mac[1] == 0 && mac[2] == 0 && mac[3] == 0 && mac[4] == 0 && mac[5] == 0) {
return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), mac};
}
return {createWifiStatus(WifiStatusCode::SUCCESS), mac};
}
WifiStatus WifiApIface::resetToFactoryMacAddressInternal() {
std::pair<WifiStatus, std::array<uint8_t, 6>> getMacResult;
if (instances_.size() == 2) {
for (auto const& intf : instances_) {
getMacResult = getFactoryMacAddressInternal(intf);
LOG(DEBUG) << "Reset MAC to factory MAC on " << intf;
if (getMacResult.first.code != WifiStatusCode::SUCCESS ||
!iface_util_.lock()->setMacAddress(intf, getMacResult.second)) {
return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
}
}
// It needs to set mac address for bridged interface, otherwise the mac
// address of the bridged interface will be changed after one of the
// instance down. Thus we are generating a random MAC address for the
// bridged interface even if we got the request to reset the Factory
// MAC. Since the bridged interface is an internal interface for the
// operation of bpf and others networking operation.
if (!iface_util_.lock()->setMacAddress(ifname_,
iface_util_.lock()->createRandomMacAddress())) {
LOG(ERROR) << "Fail to config MAC for bridged interface " << ifname_;
return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
}
} else {
getMacResult = getFactoryMacAddressInternal(ifname_);
LOG(DEBUG) << "Reset MAC to factory MAC on " << ifname_;
if (getMacResult.first.code != WifiStatusCode::SUCCESS ||
!iface_util_.lock()->setMacAddress(ifname_, getMacResult.second)) {
return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
}
}
return createWifiStatus(WifiStatusCode::SUCCESS);
}
std::pair<WifiStatus, std::vector<hidl_string>> WifiApIface::getBridgedInstancesInternal() {
std::vector<hidl_string> instances;
for (const auto& instance_name : instances_) {
instances.push_back(instance_name);
}
return {createWifiStatus(WifiStatusCode::SUCCESS), instances};
}
} // namespace implementation
} // namespace V1_6
} // namespace wifi
} // namespace hardware
} // namespace android
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