Home | History | Annotate | Download | only in wificond 
      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef WIFICOND_AP_INTERFACE_IMPL_H_
     18 #define WIFICOND_AP_INTERFACE_IMPL_H_
     19 
     20 #include <string>
     21 #include <vector>
     22 
     23 #include <android-base/macros.h>
     24 #include <wifi_system/hostapd_manager.h>
     25 #include <wifi_system/interface_tool.h>
     26 
     27 #include "wificond/net/netlink_manager.h"
     28 
     29 #include "android/net/wifi/IApInterface.h"
     30 
     31 namespace android {
     32 namespace wificond {
     33 
     34 class ApInterfaceBinder;
     35 class NetlinkUtils;
     36 
     37 // Holds the guts of how we control network interfaces capable of exposing an AP
     38 // via hostapd.  Because remote processes may hold on to the corresponding
     39 // binder object past the lifetime of the local object, we are forced to
     40 // keep this object separate from the binder representation of itself.
     41 class ApInterfaceImpl {
     42  public:
     43   ApInterfaceImpl(const std::string& interface_name,
     44                   uint32_t interface_index,
     45                   NetlinkUtils* netlink_utils,
     46                   wifi_system::InterfaceTool* if_tool,
     47                   wifi_system::HostapdManager* hostapd_manager);
     48   ~ApInterfaceImpl();
     49 
     50   // Get a pointer to the binder representing this ApInterfaceImpl.
     51   android::sp<android::net::wifi::IApInterface> GetBinder() const;
     52 
     53   bool StartHostapd();
     54   bool StopHostapd();
     55   bool WriteHostapdConfig(
     56       const std::vector<uint8_t>& ssid,
     57       bool is_hidden,
     58       int32_t channel,
     59       wifi_system::HostapdManager::EncryptionType encryption_type,
     60       const std::vector<uint8_t>& passphrase);
     61   std::string GetInterfaceName() { return interface_name_; }
     62   int GetNumberOfAssociatedStations() const;
     63   void Dump(std::stringstream* ss) const;
     64 
     65  private:
     66   const std::string interface_name_;
     67   const uint32_t interface_index_;
     68   NetlinkUtils* const netlink_utils_;
     69   wifi_system::InterfaceTool* const if_tool_;
     70   wifi_system::HostapdManager* const hostapd_manager_;
     71   const android::sp<ApInterfaceBinder> binder_;
     72 
     73   // Number of associated stations.
     74   int number_of_associated_stations_;
     75 
     76   void OnStationEvent(StationEvent event,
     77                       const std::vector<uint8_t>& mac_address);
     78 
     79   DISALLOW_COPY_AND_ASSIGN(ApInterfaceImpl);
     80 };
     81 
     82 }  // namespace wificond
     83 }  // namespace android
     84 
     85 #endif  // WIFICOND_AP_INTERFACE_IMPL_H_
     86