• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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_CLIENT_INTERFACE_IMPL_H_
18 #define WIFICOND_CLIENT_INTERFACE_IMPL_H_
19 
20 #include <string>
21 
22 #include <android-base/macros.h>
23 #include <utils/StrongPointer.h>
24 #include <wifi_system/interface_tool.h>
25 
26 #include "android/net/wifi/IClientInterface.h"
27 #include "wificond/net/mlme_event_handler.h"
28 #include "wificond/net/netlink_utils.h"
29 #include "wificond/scanning/offload/offload_service_utils.h"
30 #include "wificond/scanning/scanner_impl.h"
31 
32 namespace android {
33 namespace wificond {
34 
35 class ClientInterfaceBinder;
36 class ClientInterfaceImpl;
37 class ScanUtils;
38 
39 class MlmeEventHandlerImpl : public MlmeEventHandler {
40  public:
41   MlmeEventHandlerImpl(ClientInterfaceImpl* client_interface);
42   ~MlmeEventHandlerImpl() override;
43   void OnConnect(std::unique_ptr<MlmeConnectEvent> event) override;
44   void OnRoam(std::unique_ptr<MlmeRoamEvent> event) override;
45   void OnAssociate(std::unique_ptr<MlmeAssociateEvent> event) override;
46   void OnDisconnect(std::unique_ptr<MlmeDisconnectEvent> event) override;
47   void OnDisassociate(std::unique_ptr<MlmeDisassociateEvent> event) override;
48 
49  private:
50   ClientInterfaceImpl* client_interface_;
51 };
52 
53 // Holds the guts of how we control network interfaces capable of connecting to
54 // access points via wpa_supplicant.
55 //
56 // Because remote processes may hold on to the corresponding
57 // binder object past the lifetime of the local object, we are forced to
58 // keep this object separate from the binder representation of itself.
59 class ClientInterfaceImpl {
60  public:
61   ClientInterfaceImpl(
62       uint32_t wiphy_index,
63       const std::string& interface_name,
64       uint32_t interface_index,
65       const std::vector<uint8_t>& interface_mac_addr,
66       android::wifi_system::InterfaceTool* if_tool,
67       NetlinkUtils* netlink_utils,
68       ScanUtils* scan_utils);
69   virtual ~ClientInterfaceImpl();
70 
71   // Get a pointer to the binder representing this ClientInterfaceImpl.
72   android::sp<android::net::wifi::IClientInterface> GetBinder() const;
73 
74   bool GetPacketCounters(std::vector<int32_t>* out_packet_counters);
75   bool SignalPoll(std::vector<int32_t>* out_signal_poll_results);
76   const std::vector<uint8_t>& GetMacAddress();
GetInterfaceName()77   const std::string& GetInterfaceName() const { return interface_name_; }
GetScanner()78   const android::sp<ScannerImpl> GetScanner() { return scanner_; };
79   bool SetMacAddress(const ::std::vector<uint8_t>& mac);
80   virtual bool IsAssociated() const;
81   void Dump(std::stringstream* ss) const;
82 
83  private:
84   bool RefreshAssociateFreq();
85 
86   const uint32_t wiphy_index_;
87   const std::string interface_name_;
88   const uint32_t interface_index_;
89   const std::vector<uint8_t> interface_mac_addr_;
90   android::wifi_system::InterfaceTool* const if_tool_;
91   NetlinkUtils* const netlink_utils_;
92   ScanUtils* const scan_utils_;
93   const std::shared_ptr<OffloadServiceUtils> offload_service_utils_;
94   const std::unique_ptr<MlmeEventHandlerImpl> mlme_event_handler_;
95   const android::sp<ClientInterfaceBinder> binder_;
96   android::sp<ScannerImpl> scanner_;
97 
98   // Cached information for this connection.
99   bool is_associated_;
100   std::vector<uint8_t> bssid_;
101   uint32_t associate_freq_;
102 
103   // Capability information for this wiphy/interface.
104   BandInfo band_info_;
105   ScanCapabilities scan_capabilities_;
106   WiphyFeatures wiphy_features_;
107 
108   DISALLOW_COPY_AND_ASSIGN(ClientInterfaceImpl);
109   friend class MlmeEventHandlerImpl;
110 };
111 
112 }  // namespace wificond
113 }  // namespace android
114 
115 #endif  // WIFICOND_CLIENT_INTERFACE_IMPL_H_
116