1 //
2 // Copyright (C) 2012 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_CELLULAR_CELLULAR_CAPABILITY_GSM_H_
18 #define SHILL_CELLULAR_CELLULAR_CAPABILITY_GSM_H_
19 
20 #include <deque>
21 #include <memory>
22 #include <string>
23 #include <vector>
24 
25 #include <base/memory/weak_ptr.h>
26 #if defined(__ANDROID__)
27 #include <dbus/service_constants.h>
28 #else
29 #include <chromeos/dbus/service_constants.h>
30 #endif  // __ANDROID__
31 #include <gtest/gtest_prod.h>  // for FRIEND_TEST
32 
33 #include "shill/accessor_interface.h"
34 #include "shill/cellular/cellular.h"
35 #include "shill/cellular/cellular_capability.h"
36 #include "shill/cellular/cellular_capability_classic.h"
37 #include "shill/cellular/modem_gsm_card_proxy_interface.h"
38 #include "shill/cellular/modem_gsm_network_proxy_interface.h"
39 
40 struct mobile_provider;
41 
42 namespace shill {
43 
44 class ModemInfo;
45 
46 class CellularCapabilityGSM : public CellularCapabilityClassic {
47  public:
48   CellularCapabilityGSM(Cellular* cellular,
49                         ControlInterface* control_interface,
50                         ModemInfo* modem_info);
51   ~CellularCapabilityGSM() override;
52 
53   // Inherited from CellularCapability.
54   std::string GetTypeString() const override;
55   void OnPropertiesChanged(
56       const std::string& interface,
57       const KeyValueStore& changed_properties,
58       const std::vector<std::string>& invalidated_properties) override;
59   void StartModem(Error* error, const ResultCallback& callback) override;
60   bool AreProxiesInitialized() const override;
61   void Scan(Error* error, const ResultStringmapsCallback& callback) override;
62   void RegisterOnNetwork(const std::string& network_id,
63                          Error* error,
64                          const ResultCallback& callback) override;
65   bool IsRegistered() const override;
66   void SetUnregistered(bool searching) override;
67   void OnServiceCreated() override;
68   std::string GetNetworkTechnologyString() const override;
69   std::string GetRoamingStateString() const override;
70   bool AllowRoaming() override;
71   void GetSignalQuality() override;
72   void SetupConnectProperties(KeyValueStore* properties) override;
73   void Connect(const KeyValueStore& properties,
74                Error* error,
75                const ResultCallback& callback) override;
76   void RequirePIN(const std::string& pin,
77                   bool require,
78                   Error* error,
79                   const ResultCallback& callback) override;
80   void EnterPIN(const std::string& pin,
81                 Error* error,
82                 const ResultCallback& callback) override;
83   void UnblockPIN(const std::string& unblock_code,
84                   const std::string& pin,
85                   Error* error,
86                   const ResultCallback& callback) override;
87   void ChangePIN(const std::string& old_pin,
88                  const std::string& new_pin,
89                  Error* error,
90                  const ResultCallback& callback) override;
91 
92   // Inherited from CellularCapabilityClassic.
93   void GetRegistrationState() override;
94   // The following six methods are only ever called as callbacks (from the main
95   // loop), which is why they don't take an Error* argument.
96   void GetProperties(const ResultCallback& callback) override;
97 
98   virtual void GetIMEI(const ResultCallback& callback);
99   virtual void GetIMSI(const ResultCallback& callback);
100   virtual void GetSPN(const ResultCallback& callback);
101   virtual void GetMSISDN(const ResultCallback& callback);
102   virtual void Register(const ResultCallback& callback);
103 
104  protected:
105   // Inherited from CellularCapabilityClassic.
106   void InitProxies() override;
107   void ReleaseProxies() override;
108 
109   // Initializes properties, such as IMSI, which are required before the device
110   // is enabled.
111   virtual void InitProperties();
112 
113  private:
114   friend class CellularTest;
115   friend class CellularCapabilityGSMTest;
116   friend class CellularCapabilityTest;
117   FRIEND_TEST(CellularCapabilityGSMTest, AllowRoaming);
118   FRIEND_TEST(CellularCapabilityGSMTest, CreateDeviceFromProperties);
119   FRIEND_TEST(CellularCapabilityGSMTest, GetIMEI);
120   FRIEND_TEST(CellularCapabilityGSMTest, GetIMSI);
121   FRIEND_TEST(CellularCapabilityGSMTest, GetIMSIFails);
122   FRIEND_TEST(CellularCapabilityGSMTest, GetMSISDN);
123   FRIEND_TEST(CellularCapabilityGSMTest, GetSPN);
124   FRIEND_TEST(CellularCapabilityGSMTest, RequirePIN);
125   FRIEND_TEST(CellularCapabilityGSMTest, EnterPIN);
126   FRIEND_TEST(CellularCapabilityGSMTest, UnblockPIN);
127   FRIEND_TEST(CellularCapabilityGSMTest, ChangePIN);
128   FRIEND_TEST(CellularCapabilityGSMTest, ParseScanResult);
129   FRIEND_TEST(CellularCapabilityGSMTest, ParseScanResultProviderLookup);
130   FRIEND_TEST(CellularCapabilityGSMTest, RegisterOnNetwork);
131   FRIEND_TEST(CellularCapabilityGSMTest, SetAccessTechnology);
132   FRIEND_TEST(CellularCapabilityGSMTest, GetRegistrationState);
133   FRIEND_TEST(CellularCapabilityGSMTest, OnPropertiesChanged);
134   FRIEND_TEST(CellularCapabilityTest, AllowRoaming);
135   FRIEND_TEST(CellularCapabilityTest, TryApns);
136   FRIEND_TEST(CellularTest, ScanAsynchronousFailure);
137   FRIEND_TEST(CellularTest, ScanImmediateFailure);
138   FRIEND_TEST(CellularTest, ScanSuccess);
139   FRIEND_TEST(CellularTest, StartGSMRegister);
140   FRIEND_TEST(ModemTest, CreateDeviceFromProperties);
141 
142   // SimLockStatus represents the fields in the Cellular.SIMLockStatus
143   // DBUS property of the shill device.
144   struct SimLockStatus {
145    public:
SimLockStatusSimLockStatus146     SimLockStatus() : enabled(false), retries_left(0) {}
147 
148     bool enabled;
149     std::string lock_type;
150     uint32_t retries_left;
151   };
152 
153   static const char kNetworkPropertyAccessTechnology[];
154   static const char kNetworkPropertyID[];
155   static const char kNetworkPropertyLongName[];
156   static const char kNetworkPropertyShortName[];
157   static const char kNetworkPropertyStatus[];
158   static const char kPhoneNumber[];
159   static const char kPropertyAccessTechnology[];
160   static const char kPropertyEnabledFacilityLocks[];
161   static const char kPropertyUnlockRequired[];
162   static const char kPropertyUnlockRetries[];
163 
164   // Calls to the proxy's GetIMSI() will be retried this many times.
165   static const int kGetIMSIRetryLimit;
166 
167   // This much time will pass between retries of GetIMSI().
168   static const int64_t kGetIMSIRetryDelayMilliseconds;
169 
170   void SetAccessTechnology(uint32_t access_technology);
171 
172   Stringmap ParseScanResult(const GSMScanResult& result);
173 
174   KeyValueStore SimLockStatusToProperty(Error* error);
175 
176   void SetupApnTryList();
177   void FillConnectPropertyMap(KeyValueStore* properties);
178 
179   void HelpRegisterConstDerivedKeyValueStore(
180       const std::string& name,
181       KeyValueStore(CellularCapabilityGSM::*get)(Error* error));
182 
183   bool IsUnderlyingDeviceRegistered() const;
184 
185   // Signal callbacks
186   void OnNetworkModeSignal(uint32_t mode);
187   void OnRegistrationInfoSignal(uint32_t status,
188                                 const std::string& operator_code,
189                                 const std::string& operator_name);
190   void OnSignalQualitySignal(uint32_t quality);
191 
192   // Method callbacks
193   void OnGetRegistrationInfoReply(uint32_t status,
194                                   const std::string& operator_code,
195                                   const std::string& operator_name,
196                                   const Error& error);
197   void OnGetSignalQualityReply(uint32_t quality, const Error& error);
198   void OnRegisterReply(const ResultCallback& callback,
199                        const Error& error);
200   void OnGetIMEIReply(const ResultCallback& callback,
201                       const std::string& imei,
202                       const Error& error);
203   void OnGetIMSIReply(const ResultCallback& callback,
204                       const std::string& imsi,
205                       const Error& error);
206   void OnGetSPNReply(const ResultCallback& callback,
207                      const std::string& spn,
208                      const Error& error);
209   void OnGetMSISDNReply(const ResultCallback& callback,
210                         const std::string& msisdn,
211                         const Error& error);
212   void OnScanReply(const ResultStringmapsCallback& callback,
213                    const GSMScanResults& results,
214                    const Error& error);
215   void OnConnectReply(const ResultCallback& callback, const Error& error);
216 
217   std::unique_ptr<ModemGSMCardProxyInterface> card_proxy_;
218   std::unique_ptr<ModemGSMNetworkProxyInterface> network_proxy_;
219   base::WeakPtrFactory<CellularCapabilityGSM> weak_ptr_factory_;
220   // Used to enrich information about the network operator in |ParseScanResult|.
221   // TODO(pprabhu) Instead instantiate a local |MobileOperatorInfo| instance
222   // once the context has been separated out. (crbug.com/363874)
223   std::unique_ptr<MobileOperatorInfo> mobile_operator_info_;
224 
225   uint32_t registration_state_;
226   uint32_t access_technology_;
227   std::string spn_;
228   mobile_provider* home_provider_info_;
229   std::string desired_network_;
230 
231   // The number of times GetIMSI() has been retried.
232   int get_imsi_retries_;
233 
234   // Amount of time to wait between retries of GetIMSI.  Defaults to
235   // kGetIMSIRetryDelayMilliseconds, but can be altered by a unit test.
236   int64_t get_imsi_retry_delay_milliseconds_;
237 
238   // Properties.
239   std::deque<Stringmap> apn_try_list_;
240   SimLockStatus sim_lock_status_;
241 
242   DISALLOW_COPY_AND_ASSIGN(CellularCapabilityGSM);
243 };
244 
245 }  // namespace shill
246 
247 #endif  // SHILL_CELLULAR_CELLULAR_CAPABILITY_GSM_H_
248