1 //
2 // Copyright (C) 2015 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 SHILL_DBUS_CHROMEOS_SUPPLICANT_PROCESS_PROXY_H_
18 #define SHILL_DBUS_CHROMEOS_SUPPLICANT_PROCESS_PROXY_H_
19 
20 #include <string>
21 #include <vector>
22 
23 #include <base/macros.h>
24 #include <base/memory/ref_counted.h>
25 #include <base/memory/weak_ptr.h>
26 
27 #include "shill/event_dispatcher.h"
28 #include "shill/supplicant/supplicant_process_proxy_interface.h"
29 #include "supplicant/dbus-proxies.h"
30 
31 namespace shill {
32 
33 class EventDispatcher;
34 
35 class ChromeosSupplicantProcessProxy : public SupplicantProcessProxyInterface {
36  public:
37   ChromeosSupplicantProcessProxy(
38       EventDispatcher* dispatcher,
39       const scoped_refptr<dbus::Bus>& bus,
40       const base::Closure& service_appeared_callback,
41       const base::Closure& service_vanished_callback);
42   ~ChromeosSupplicantProcessProxy() override;
43 
44   // Implementation of SupplicantProcessProxyInterface.
45   bool CreateInterface(const KeyValueStore& args,
46                        std::string* rpc_identifier) override;
47   bool RemoveInterface(const std::string& rpc_identifier) override;
48   bool GetInterface(const std::string& ifname,
49                     std::string* rpc_identifier) override;
50   // This function will always return true since PropertySet::Set is an async
51   // method. Any failures will be logged in the callback.
52   bool SetDebugLevel(const std::string& level) override;
53   bool GetDebugLevel(std::string* level) override;
54   bool ExpectDisconnect() override;
55 
56  private:
57   class PropertySet : public dbus::PropertySet {
58    public:
59     PropertySet(dbus::ObjectProxy* object_proxy,
60                 const std::string& interface_name,
61                 const PropertyChangedCallback& callback);
62     brillo::dbus_utils::Property<std::string> debug_level;
63     brillo::dbus_utils::Property<bool> debug_timestamp;
64     brillo::dbus_utils::Property<bool> debug_show_keys;
65     brillo::dbus_utils::Property<std::vector<dbus::ObjectPath>> interfaces;
66     brillo::dbus_utils::Property<std::vector<std::string>> eap_methods;
67 
68    private:
69     DISALLOW_COPY_AND_ASSIGN(PropertySet);
70   };
71 
72   static const char kInterfaceName[];
73   static const char kPropertyDebugLevel[];
74   static const char kPropertyDebugTimestamp[];
75   static const char kPropertyDebugShowKeys[];
76   static const char kPropertyInterfaces[];
77   static const char kPropertyEapMethods[];
78 
79   // Signal handlers.
80   void InterfaceAdded(const dbus::ObjectPath& path,
81                       const brillo::VariantDictionary& properties);
82   void InterfaceRemoved(const dbus::ObjectPath& path);
83   void PropertiesChanged(const brillo::VariantDictionary& properties);
84 
85   // Called when service appeared or vanished.
86   void OnServiceAvailable(bool available);
87 
88   // Service name owner changed handler.
89   void OnServiceOwnerChanged(const std::string& old_owner,
90                              const std::string& new_owner);
91 
92   // Callback invoked when the value of property |property_name| is changed.
93   void OnPropertyChanged(const std::string& property_name);
94 
95 
96   // Called when signal is connected to the ObjectProxy.
97   void OnSignalConnected(const std::string& interface_name,
98                          const std::string& signal_name,
99                          bool success);
100 
101   std::unique_ptr<fi::w1::wpa_supplicant1Proxy> supplicant_proxy_;
102   std::unique_ptr<PropertySet> properties_;
103   EventDispatcher* dispatcher_;
104   base::Closure service_appeared_callback_;
105   base::Closure service_vanished_callback_;
106   bool service_available_;
107 
108   base::WeakPtrFactory<ChromeosSupplicantProcessProxy> weak_factory_{this};
109   DISALLOW_COPY_AND_ASSIGN(ChromeosSupplicantProcessProxy);
110 };
111 
112 }  // namespace shill
113 
114 #endif  // SHILL_DBUS_CHROMEOS_SUPPLICANT_PROCESS_PROXY_H_
115