1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "chromeos/network/device_state.h"
6
7 #include "base/logging.h"
8 #include "base/metrics/histogram.h"
9 #include "base/strings/stringprintf.h"
10 #include "base/values.h"
11 #include "chromeos/network/network_event_log.h"
12 #include "chromeos/network/shill_property_util.h"
13 #include "third_party/cros_system_api/dbus/service_constants.h"
14
15 namespace chromeos {
16
DeviceState(const std::string & path)17 DeviceState::DeviceState(const std::string& path)
18 : ManagedState(MANAGED_TYPE_DEVICE, path),
19 allow_roaming_(false),
20 provider_requires_roaming_(false),
21 support_network_scan_(false),
22 scanning_(false),
23 sim_retries_left_(0),
24 sim_lock_enabled_(false),
25 sim_present_(true),
26 eap_authentication_completed_(false) {
27 }
28
~DeviceState()29 DeviceState::~DeviceState() {
30 }
31
PropertyChanged(const std::string & key,const base::Value & value)32 bool DeviceState::PropertyChanged(const std::string& key,
33 const base::Value& value) {
34 // All property values get stored in |properties_|.
35 properties_.SetWithoutPathExpansion(key, value.DeepCopy());
36
37 if (ManagedStatePropertyChanged(key, value))
38 return true;
39 if (key == shill::kAddressProperty) {
40 return GetStringValue(key, value, &mac_address_);
41 } else if (key == shill::kScanningProperty) {
42 return GetBooleanValue(key, value, &scanning_);
43 } else if (key == shill::kSupportNetworkScanProperty) {
44 return GetBooleanValue(key, value, &support_network_scan_);
45 } else if (key == shill::kCellularAllowRoamingProperty) {
46 return GetBooleanValue(key, value, &allow_roaming_);
47 } else if (key == shill::kProviderRequiresRoamingProperty) {
48 return GetBooleanValue(key, value, &provider_requires_roaming_);
49 } else if (key == shill::kHomeProviderProperty) {
50 return shill_property_util::GetHomeProviderFromProperty(
51 value, &home_provider_id_);
52 } else if (key == shill::kTechnologyFamilyProperty) {
53 return GetStringValue(key, value, &technology_family_);
54 } else if (key == shill::kCarrierProperty) {
55 return GetStringValue(key, value, &carrier_);
56 } else if (key == shill::kFoundNetworksProperty) {
57 const base::ListValue* list = NULL;
58 if (!value.GetAsList(&list))
59 return false;
60 CellularScanResults parsed_results;
61 if (!network_util::ParseCellularScanResults(*list, &parsed_results))
62 return false;
63 scan_results_.swap(parsed_results);
64 return true;
65 } else if (key == shill::kSIMLockStatusProperty) {
66 const base::DictionaryValue* dict = NULL;
67 if (!value.GetAsDictionary(&dict))
68 return false;
69
70 // Return true if at least one of the property values changed.
71 bool property_changed = false;
72 const base::Value* out_value = NULL;
73 if (!dict->GetWithoutPathExpansion(shill::kSIMLockRetriesLeftProperty,
74 &out_value))
75 return false;
76 if (GetUInt32Value(shill::kSIMLockRetriesLeftProperty,
77 *out_value, &sim_retries_left_))
78 property_changed = true;
79
80 if (!dict->GetWithoutPathExpansion(shill::kSIMLockTypeProperty,
81 &out_value))
82 return false;
83 if (GetStringValue(shill::kSIMLockTypeProperty,
84 *out_value, &sim_lock_type_))
85 property_changed = true;
86
87 if (!dict->GetWithoutPathExpansion(shill::kSIMLockEnabledProperty,
88 &out_value))
89 return false;
90 if (GetBooleanValue(shill::kSIMLockEnabledProperty,
91 *out_value, &sim_lock_enabled_))
92 property_changed = true;
93
94 return property_changed;
95 } else if (key == shill::kMeidProperty) {
96 return GetStringValue(key, value, &meid_);
97 } else if (key == shill::kImeiProperty) {
98 return GetStringValue(key, value, &imei_);
99 } else if (key == shill::kIccidProperty) {
100 return GetStringValue(key, value, &iccid_);
101 } else if (key == shill::kMdnProperty) {
102 return GetStringValue(key, value, &mdn_);
103 } else if (key == shill::kSIMPresentProperty) {
104 return GetBooleanValue(key, value, &sim_present_);
105 } else if (key == shill::kEapAuthenticationCompletedProperty) {
106 return GetBooleanValue(key, value, &eap_authentication_completed_);
107 } else if (key == shill::kIPConfigsProperty) {
108 // If kIPConfigsProperty changes, clear any previous ip_configs_.
109 // ShillPropertyhandler will request the IPConfig objects which will trigger
110 // calls to IPConfigPropertiesChanged.
111 ip_configs_.Clear();
112 return false; // No actual state change.
113 }
114 return false;
115 }
116
InitialPropertiesReceived(const base::DictionaryValue & properties)117 bool DeviceState::InitialPropertiesReceived(
118 const base::DictionaryValue& properties) {
119 // Update UMA stats.
120 if (sim_present_) {
121 bool locked = !sim_lock_type_.empty();
122 UMA_HISTOGRAM_BOOLEAN("Cellular.SIMLocked", locked);
123 }
124 return false;
125 }
126
IPConfigPropertiesChanged(const std::string & ip_config_path,const base::DictionaryValue & properties)127 void DeviceState::IPConfigPropertiesChanged(
128 const std::string& ip_config_path,
129 const base::DictionaryValue& properties) {
130 base::DictionaryValue* ip_config = NULL;
131 if (ip_configs_.GetDictionaryWithoutPathExpansion(
132 ip_config_path, &ip_config)) {
133 NET_LOG_EVENT("IPConfig Updated: " + ip_config_path, path());
134 ip_config->Clear();
135 } else {
136 NET_LOG_EVENT("IPConfig Added: " + ip_config_path, path());
137 ip_config = new base::DictionaryValue;
138 ip_configs_.SetWithoutPathExpansion(ip_config_path, ip_config);
139 }
140 ip_config->MergeDictionary(&properties);
141 }
142
IsSimAbsent() const143 bool DeviceState::IsSimAbsent() const {
144 return technology_family_ == shill::kTechnologyFamilyGsm && !sim_present_;
145 }
146
147 } // namespace chromeos
148