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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.
*/
#ifndef WIFICOND_SERVER_H_
#define WIFICOND_SERVER_H_
#include <memory>
#include <string>
#include <vector>
#include <android-base/macros.h>
#include <wifi_system/interface_tool.h>
#include "android/net/wifi/nl80211/BnWificond.h"
#include "android/net/wifi/nl80211/IApInterface.h"
#include "android/net/wifi/nl80211/IClientInterface.h"
#include "android/net/wifi/nl80211/IInterfaceEventCallback.h"
#include "android/net/wifi/nl80211/IWificondEventCallback.h"
#include "wificond/ap_interface_impl.h"
#include "wificond/client_interface_impl.h"
namespace android {
namespace wificond {
class NL80211Packet;
class NetlinkUtils;
class ScanUtils;
struct InterfaceInfo;
class Server : public android::net::wifi::nl80211::BnWificond {
public:
Server(std::unique_ptr<wifi_system::InterfaceTool> if_tool,
NetlinkUtils* netlink_utils,
ScanUtils* scan_utils);
~Server() override = default;
android::binder::Status registerWificondEventCallback(
const android::sp<android::net::wifi::nl80211::IWificondEventCallback>&
callback) override;
android::binder::Status unregisterWificondEventCallback(
const android::sp<android::net::wifi::nl80211::IWificondEventCallback>&
callback) override;
android::binder::Status RegisterCallback(
const android::sp<android::net::wifi::nl80211::IInterfaceEventCallback>&
callback) override;
android::binder::Status UnregisterCallback(
const android::sp<android::net::wifi::nl80211::IInterfaceEventCallback>&
callback) override;
// Returns a vector of available frequencies for 2.4GHz channels.
android::binder::Status getAvailable2gChannels(
::std::optional<::std::vector<int32_t>>* out_frequencies) override;
// Returns a vector of available frequencies for 5GHz non-DFS channels.
android::binder::Status getAvailable5gNonDFSChannels(
::std::optional<::std::vector<int32_t>>* out_frequencies) override;
// Returns a vector of available frequencies for DFS channels.
android::binder::Status getAvailableDFSChannels(
::std::optional<::std::vector<int32_t>>* out_frequencies) override;
// Returns a vector of available frequencies for 6GHz channels.
android::binder::Status getAvailable6gChannels(
::std::optional<::std::vector<int32_t>>* out_frequencies) override;
// Returns a vector of available frequencies for 60GHz channels.
android::binder::Status getAvailable60gChannels(
::std::optional<::std::vector<int32_t>>* out_frequencies) override;
android::binder::Status createApInterface(
const std::string& iface_name,
android::sp<android::net::wifi::nl80211::IApInterface>*
created_interface) override;
android::binder::Status createClientInterface(
const std::string& iface_name,
android::sp<android::net::wifi::nl80211::IClientInterface>*
created_interface) override;
android::binder::Status tearDownApInterface(
const std::string& iface_name,
bool* out_success) override;
android::binder::Status tearDownClientInterface(
const std::string& iface_name,
bool* out_success) override;
android::binder::Status tearDownInterfaces() override;
android::binder::Status GetClientInterfaces(
std::vector<android::sp<android::IBinder>>* out_client_ifs) override;
android::binder::Status GetApInterfaces(
std::vector<android::sp<android::IBinder>>* out_ap_ifs) override;
status_t dump(int fd, const Vector<String16>& args) override;
// Returns device wiphy capabilities for an interface
android::binder::Status getDeviceWiphyCapabilities(
const std::string& iface_name,
::std::optional<net::wifi::nl80211::DeviceWiphyCapabilities>* capabilities) override;
android::binder::Status notifyCountryCodeChanged() override;
private:
// Request interface information from kernel and setup local interface object.
// This assumes that interface should be in STATION mode. Even if we setup
// interface on behalf of createApInterace(), it is Hostapd that configure
// the interface to Ap mode later.
// Returns true on success, false otherwise.
bool SetupInterface(const std::string& iface_name, InterfaceInfo* interface,
uint32_t *wiphy_index);
void LogSupportedBands(uint32_t wiphy_index);
void OnRegDomainChanged(uint32_t wiphy_index, std::string& country_code);
void handleCountryCodeChanged();
void BroadcastClientInterfaceReady(
android::sp<android::net::wifi::nl80211::IClientInterface> network_interface);
void BroadcastApInterfaceReady(
android::sp<android::net::wifi::nl80211::IApInterface> network_interface);
void BroadcastClientInterfaceTornDown(
android::sp<android::net::wifi::nl80211::IClientInterface> network_interface);
void BroadcastApInterfaceTornDown(
android::sp<android::net::wifi::nl80211::IApInterface> network_interface);
void BroadcastRegDomainChanged();
void MarkDownAllInterfaces();
int FindWiphyIndex(const std::string& iface_name);
bool GetBandInfo(int wiphy_index, BandInfo* band_info);
int GetWiphyIndexFromBand(int band);
void UpdateBandWiphyIndexMap(int wiphy_index);
void EraseBandWiphyIndexMap(int wiphy_index);
bool hasNoIfaceForWiphyIndex(int wiphy_index);
const std::unique_ptr<wifi_system::InterfaceTool> if_tool_;
NetlinkUtils* const netlink_utils_;
ScanUtils* const scan_utils_;
// Chips serves mutually exclusive bands.
std::map<uint32_t, uint32_t> band_to_wiphy_index_map_;
std::map<std::string, uint32_t> iface_to_wiphy_index_map_;
std::map<std::string, std::unique_ptr<ApInterfaceImpl>> ap_interfaces_;
std::map<std::string, std::unique_ptr<ClientInterfaceImpl>> client_interfaces_;
std::vector<android::sp<android::net::wifi::nl80211::IInterfaceEventCallback>>
interface_event_callbacks_;
std::vector<android::sp<android::net::wifi::nl80211::IWificondEventCallback>>
wificond_event_callbacks_;
// Cached interface list from kernel for dumping.
std::vector<InterfaceInfo> debug_interfaces_;
std::string current_country_code_;
DISALLOW_COPY_AND_ASSIGN(Server);
};
} // namespace wificond
} // namespace android
#endif // WIFICOND_SERVER_H_
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