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221 lines
8.8 KiB
221 lines
8.8 KiB
7 months ago
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <android-base/logging.h>
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#include "hidl_return_util.h"
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#include "hidl_struct_util.h"
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#include "wifi_ap_iface.h"
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#include "wifi_status_util.h"
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namespace android {
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namespace hardware {
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namespace wifi {
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namespace V1_5 {
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namespace implementation {
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using hidl_return_util::validateAndCall;
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WifiApIface::WifiApIface(
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const std::string& ifname, const std::vector<std::string>& instances,
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const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
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const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util)
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: ifname_(ifname),
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instances_(instances),
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legacy_hal_(legacy_hal),
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iface_util_(iface_util),
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is_valid_(true) {}
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void WifiApIface::invalidate() {
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legacy_hal_.reset();
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is_valid_ = false;
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}
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bool WifiApIface::isValid() { return is_valid_; }
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std::string WifiApIface::getName() { return ifname_; }
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void WifiApIface::removeInstance(std::string instance) {
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instances_.erase(
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std::remove(instances_.begin(), instances_.end(), instance),
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instances_.end());
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}
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Return<void> WifiApIface::getName(getName_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
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&WifiApIface::getNameInternal, hidl_status_cb);
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}
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Return<void> WifiApIface::getType(getType_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
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&WifiApIface::getTypeInternal, hidl_status_cb);
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}
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Return<void> WifiApIface::setCountryCode(const hidl_array<int8_t, 2>& code,
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setCountryCode_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
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&WifiApIface::setCountryCodeInternal, hidl_status_cb,
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code);
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}
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Return<void> WifiApIface::getValidFrequenciesForBand(
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V1_0::WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
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&WifiApIface::getValidFrequenciesForBandInternal,
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hidl_status_cb, band);
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}
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Return<void> WifiApIface::setMacAddress(const hidl_array<uint8_t, 6>& mac,
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setMacAddress_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
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&WifiApIface::setMacAddressInternal, hidl_status_cb,
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mac);
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}
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Return<void> WifiApIface::getFactoryMacAddress(
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getFactoryMacAddress_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
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&WifiApIface::getFactoryMacAddressInternal,
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hidl_status_cb,
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instances_.size() > 0 ? instances_[0] : ifname_);
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}
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Return<void> WifiApIface::resetToFactoryMacAddress(
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resetToFactoryMacAddress_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
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&WifiApIface::resetToFactoryMacAddressInternal,
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hidl_status_cb);
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}
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Return<void> WifiApIface::getBridgedInstances(
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getBridgedInstances_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
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&WifiApIface::getBridgedInstancesInternal,
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hidl_status_cb);
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}
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std::pair<WifiStatus, std::string> WifiApIface::getNameInternal() {
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return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
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}
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std::pair<WifiStatus, IfaceType> WifiApIface::getTypeInternal() {
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return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::AP};
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}
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WifiStatus WifiApIface::setCountryCodeInternal(
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const std::array<int8_t, 2>& code) {
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legacy_hal::wifi_error legacy_status = legacy_hal_.lock()->setCountryCode(
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instances_.size() > 0 ? instances_[0] : ifname_, code);
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return createWifiStatusFromLegacyError(legacy_status);
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}
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std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
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WifiApIface::getValidFrequenciesForBandInternal(V1_0::WifiBand band) {
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static_assert(sizeof(WifiChannelInMhz) == sizeof(uint32_t),
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"Size mismatch");
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legacy_hal::wifi_error legacy_status;
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std::vector<uint32_t> valid_frequencies;
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std::tie(legacy_status, valid_frequencies) =
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legacy_hal_.lock()->getValidFrequenciesForBand(
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instances_.size() > 0 ? instances_[0] : ifname_,
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hidl_struct_util::convertHidlWifiBandToLegacy(band));
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return {createWifiStatusFromLegacyError(legacy_status), valid_frequencies};
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}
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WifiStatus WifiApIface::setMacAddressInternal(
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const std::array<uint8_t, 6>& mac) {
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// Support random MAC up to 2 interfaces
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if (instances_.size() == 2) {
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int rbyte = 1;
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for (auto const& intf : instances_) {
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std::array<uint8_t, 6> rmac = mac;
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// reverse the bits to avoid collision
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rmac[rbyte] = 0xff - rmac[rbyte];
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if (!iface_util_.lock()->setMacAddress(intf, rmac)) {
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LOG(INFO) << "Failed to set random mac address on " << intf;
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return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
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}
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rbyte++;
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}
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}
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// It also needs to set mac address for bridged interface, otherwise the mac
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// address of bridged interface will be changed after one of instance
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// down.
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if (!iface_util_.lock()->setMacAddress(ifname_, mac)) {
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LOG(ERROR) << "Fail to config MAC for interface " << ifname_;
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return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
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}
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return createWifiStatus(WifiStatusCode::SUCCESS);
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}
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std::pair<WifiStatus, std::array<uint8_t, 6>>
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WifiApIface::getFactoryMacAddressInternal(const std::string& ifaceName) {
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std::array<uint8_t, 6> mac =
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iface_util_.lock()->getFactoryMacAddress(ifaceName);
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if (mac[0] == 0 && mac[1] == 0 && mac[2] == 0 && mac[3] == 0 &&
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mac[4] == 0 && mac[5] == 0) {
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return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), mac};
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}
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return {createWifiStatus(WifiStatusCode::SUCCESS), mac};
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}
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WifiStatus WifiApIface::resetToFactoryMacAddressInternal() {
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std::pair<WifiStatus, std::array<uint8_t, 6>> getMacResult;
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if (instances_.size() == 2) {
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for (auto const& intf : instances_) {
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getMacResult = getFactoryMacAddressInternal(intf);
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LOG(DEBUG) << "Reset MAC to factory MAC on " << intf;
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if (getMacResult.first.code != WifiStatusCode::SUCCESS ||
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!iface_util_.lock()->setMacAddress(intf, getMacResult.second)) {
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return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
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}
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}
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// It needs to set mac address for bridged interface, otherwise the mac
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// address of the bridged interface will be changed after one of the
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// instance down. Thus we are generating a random MAC address for the
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// bridged interface even if we got the request to reset the Factory
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// MAC. Since the bridged interface is an internal interface for the
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// operation of bpf and others networking operation.
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if (!iface_util_.lock()->setMacAddress(
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ifname_, iface_util_.lock()->createRandomMacAddress())) {
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LOG(ERROR) << "Fail to config MAC for bridged interface "
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<< ifname_;
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return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
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}
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} else {
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getMacResult = getFactoryMacAddressInternal(ifname_);
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LOG(DEBUG) << "Reset MAC to factory MAC on " << ifname_;
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if (getMacResult.first.code != WifiStatusCode::SUCCESS ||
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!iface_util_.lock()->setMacAddress(ifname_, getMacResult.second)) {
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return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
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}
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}
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return createWifiStatus(WifiStatusCode::SUCCESS);
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}
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std::pair<WifiStatus, std::vector<hidl_string>>
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WifiApIface::getBridgedInstancesInternal() {
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std::vector<hidl_string> instances;
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for (const auto& instance_name : instances_) {
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instances.push_back(instance_name);
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}
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return {createWifiStatus(WifiStatusCode::SUCCESS), instances};
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}
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} // namespace implementation
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} // namespace V1_5
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} // namespace wifi
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} // namespace hardware
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} // namespace android
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