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
31namespace shill {
32
33class EventDispatcher;
34
35class 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