src/chromeos/network/network_device_handler_impl.cc

   1 // Copyright 2013 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/network_device_handler_impl.h"
   6
   7 #include "base/bind.h"
   8 #include "base/location.h"
   9 #include "base/values.h"
  10 #include "chromeos/dbus/dbus_thread_manager.h"
  11 #include "chromeos/dbus/shill_device_client.h"
  12 #include "chromeos/dbus/shill_ipconfig_client.h"
  13 #include "chromeos/network/device_state.h"
  14 #include "chromeos/network/network_event_log.h"
  15 #include "chromeos/network/network_handler_callbacks.h"
  16 #include "chromeos/network/network_state_handler.h"
  17 #include "chromeos/network/shill_property_util.h"
  18 #include "dbus/object_path.h"
  19 #include "third_party/cros_system_api/dbus/service_constants.h"
  20
  21 namespace chromeos {
  22
  23 namespace {
  24
  25 // TODO(armansito): Add bindings for these to service_constants.h
  26 // (crbug.com/256889)
  27 const char kShillErrorFailure[] = "org.chromium.flimflam.Error.Failure";
  28 const char kShillErrorNotSupported[] =
  29     "org.chromium.flimflam.Error.NotSupported";
  30
  31 std::string GetErrorNameForShillError(const std::string& shill_error_name) {
  32   // TODO(armansito): Use the new SIM error names once the ones below get
  33   // deprecated (crbug.com/256855)
  34   if (shill_error_name == kShillErrorFailure)
  35     return NetworkDeviceHandler::kErrorFailure;
  36   if (shill_error_name == kShillErrorNotSupported)
  37     return NetworkDeviceHandler::kErrorNotSupported;
  38   if (shill_error_name == shill::kErrorIncorrectPinMsg)
  39     return NetworkDeviceHandler::kErrorIncorrectPin;
  40   if (shill_error_name == shill::kErrorPinBlockedMsg)
  41     return NetworkDeviceHandler::kErrorPinBlocked;
  42   if (shill_error_name == shill::kErrorPinRequiredMsg)
  43     return NetworkDeviceHandler::kErrorPinRequired;
  44   return NetworkDeviceHandler::kErrorUnknown;
  45 }
  46
  47 void InvokeErrorCallback(const std::string& service_path,
  48                          const network_handler::ErrorCallback& error_callback,
  49                          const std::string& error_name) {
  50   std::string error_msg = "Device Error: " + error_name;
  51   NET_LOG_ERROR(error_msg, service_path);
  52   network_handler::RunErrorCallback(
  53       error_callback, service_path, error_name, error_msg);
  54 }
  55
  56 void HandleShillCallFailure(
  57     const std::string& device_path,
  58     const network_handler::ErrorCallback& error_callback,
  59     const std::string& shill_error_name,
  60     const std::string& shill_error_message) {
  61   network_handler::ShillErrorCallbackFunction(
  62       GetErrorNameForShillError(shill_error_name),
  63       device_path,
  64       error_callback,
  65       shill_error_name,
  66       shill_error_message);
  67 }
  68
  69 void IPConfigRefreshCallback(const std::string& ipconfig_path,
  70                              DBusMethodCallStatus call_status) {
  71   if (call_status != DBUS_METHOD_CALL_SUCCESS) {
  72     NET_LOG_ERROR(
  73         base::StringPrintf("IPConfigs.Refresh Failed: %d", call_status),
  74         ipconfig_path);
  75   } else {
  76     NET_LOG_EVENT("IPConfigs.Refresh Succeeded", ipconfig_path);
  77   }
  78 }
  79
  80 void RefreshIPConfigsCallback(
  81     const base::Closure& callback,
  82     const network_handler::ErrorCallback& error_callback,
  83     const std::string& device_path,
  84     const base::DictionaryValue& properties) {
  85   const base::ListValue* ip_configs;
  86   if (!properties.GetListWithoutPathExpansion(
  87           shill::kIPConfigsProperty, &ip_configs)) {
  88     NET_LOG_ERROR("RequestRefreshIPConfigs Failed", device_path);
  89     network_handler::ShillErrorCallbackFunction(
  90         "RequestRefreshIPConfigs Failed",
  91         device_path,
  92         error_callback,
  93         std::string("Missing ") + shill::kIPConfigsProperty, "");
  94     return;
  95   }
  96
  97   for (size_t i = 0; i < ip_configs->GetSize(); i++) {
  98     std::string ipconfig_path;
  99     if (!ip_configs->GetString(i, &ipconfig_path))
 100       continue;
 101     DBusThreadManager::Get()->GetShillIPConfigClient()->Refresh(
 102         dbus::ObjectPath(ipconfig_path),
 103         base::Bind(&IPConfigRefreshCallback, ipconfig_path));
 104   }
 105   // It is safe to invoke |callback| here instead of waiting for the
 106   // IPConfig.Refresh callbacks to complete because the Refresh DBus calls will
 107   // be executed in order and thus before any further DBus requests that
 108   // |callback| may issue.
 109   if (!callback.is_null())
 110     callback.Run();
 111 }
 112
 113 void ProposeScanCallback(
 114     const std::string& device_path,
 115     const base::Closure& callback,
 116     const network_handler::ErrorCallback& error_callback,
 117     DBusMethodCallStatus call_status) {
 118   if (call_status != DBUS_METHOD_CALL_SUCCESS) {
 119     network_handler::ShillErrorCallbackFunction(
 120         "Device.ProposeScan Failed",
 121         device_path,
 122         error_callback,
 123         base::StringPrintf("DBus call failed: %d", call_status), "");
 124     return;
 125   }
 126   NET_LOG_EVENT("Device.ProposeScan succeeded.", device_path);
 127   if (!callback.is_null())
 128     callback.Run();
 129 }
 130
 131 void SetDevicePropertyInternal(
 132     const std::string& device_path,
 133     const std::string& property_name,
 134     const base::Value& value,
 135     const base::Closure& callback,
 136     const network_handler::ErrorCallback& error_callback) {
 137   DBusThreadManager::Get()->GetShillDeviceClient()->SetProperty(
 138       dbus::ObjectPath(device_path),
 139       property_name,
 140       value,
 141       callback,
 142       base::Bind(&HandleShillCallFailure, device_path, error_callback));
 143 }
 144
 145 }  // namespace
 146
 147 NetworkDeviceHandlerImpl::~NetworkDeviceHandlerImpl() {
 148   network_state_handler_->RemoveObserver(this, FROM_HERE);
 149 }
 150
 151 void NetworkDeviceHandlerImpl::GetDeviceProperties(
 152     const std::string& device_path,
 153     const network_handler::DictionaryResultCallback& callback,
 154     const network_handler::ErrorCallback& error_callback) const {
 155   DBusThreadManager::Get()->GetShillDeviceClient()->GetProperties(
 156       dbus::ObjectPath(device_path),
 157       base::Bind(&network_handler::GetPropertiesCallback,
 158                  callback, error_callback, device_path));
 159 }
 160
 161 void NetworkDeviceHandlerImpl::SetDeviceProperty(
 162     const std::string& device_path,
 163     const std::string& property_name,
 164     const base::Value& value,
 165     const base::Closure& callback,
 166     const network_handler::ErrorCallback& error_callback) {
 167   const char* const property_blacklist[] = {
 168       // Must only be changed by policy/owner through.
 169       shill::kCellularAllowRoamingProperty
 170   };
 171
 172   for (size_t i = 0; i < arraysize(property_blacklist); ++i) {
 173     if (property_name == property_blacklist[i]) {
 174       InvokeErrorCallback(
 175           device_path,
 176           error_callback,
 177           "SetDeviceProperty called on blacklisted property " + property_name);
 178       return;
 179     }
 180   }
 181
 182   SetDevicePropertyInternal(
 183       device_path, property_name, value, callback, error_callback);
 184 }
 185
 186 void NetworkDeviceHandlerImpl::RequestRefreshIPConfigs(
 187     const std::string& device_path,
 188     const base::Closure& callback,
 189     const network_handler::ErrorCallback& error_callback) {
 190   GetDeviceProperties(device_path,
 191                       base::Bind(&RefreshIPConfigsCallback,
 192                                  callback, error_callback),
 193                       error_callback);
 194 }
 195
 196 void NetworkDeviceHandlerImpl::ProposeScan(
 197     const std::string& device_path,
 198     const base::Closure& callback,
 199     const network_handler::ErrorCallback& error_callback) {
 200   DBusThreadManager::Get()->GetShillDeviceClient()->ProposeScan(
 201       dbus::ObjectPath(device_path),
 202       base::Bind(&ProposeScanCallback, device_path, callback, error_callback));
 203 }
 204
 205 void NetworkDeviceHandlerImpl::RegisterCellularNetwork(
 206     const std::string& device_path,
 207     const std::string& network_id,
 208     const base::Closure& callback,
 209     const network_handler::ErrorCallback& error_callback) {
 210   DBusThreadManager::Get()->GetShillDeviceClient()->Register(
 211       dbus::ObjectPath(device_path),
 212       network_id,
 213       callback,
 214       base::Bind(&HandleShillCallFailure, device_path, error_callback));
 215 }
 216
 217 void NetworkDeviceHandlerImpl::SetCarrier(
 218     const std::string& device_path,
 219     const std::string& carrier,
 220     const base::Closure& callback,
 221     const network_handler::ErrorCallback& error_callback) {
 222   DBusThreadManager::Get()->GetShillDeviceClient()->SetCarrier(
 223       dbus::ObjectPath(device_path),
 224       carrier,
 225       callback,
 226       base::Bind(&HandleShillCallFailure, device_path, error_callback));
 227 }
 228
 229 void NetworkDeviceHandlerImpl::RequirePin(
 230     const std::string& device_path,
 231     bool require_pin,
 232     const std::string& pin,
 233     const base::Closure& callback,
 234     const network_handler::ErrorCallback& error_callback) {
 235   DBusThreadManager::Get()->GetShillDeviceClient()->RequirePin(
 236       dbus::ObjectPath(device_path),
 237       pin,
 238       require_pin,
 239       callback,
 240       base::Bind(&HandleShillCallFailure, device_path, error_callback));
 241 }
 242
 243 void NetworkDeviceHandlerImpl::EnterPin(
 244     const std::string& device_path,
 245     const std::string& pin,
 246     const base::Closure& callback,
 247     const network_handler::ErrorCallback& error_callback) {
 248   DBusThreadManager::Get()->GetShillDeviceClient()->EnterPin(
 249       dbus::ObjectPath(device_path),
 250       pin,
 251       callback,
 252       base::Bind(&HandleShillCallFailure, device_path, error_callback));
 253 }
 254
 255 void NetworkDeviceHandlerImpl::UnblockPin(
 256     const std::string& device_path,
 257     const std::string& puk,
 258     const std::string& new_pin,
 259     const base::Closure& callback,
 260     const network_handler::ErrorCallback& error_callback) {
 261   DBusThreadManager::Get()->GetShillDeviceClient()->UnblockPin(
 262       dbus::ObjectPath(device_path),
 263       puk,
 264       new_pin,
 265       callback,
 266       base::Bind(&HandleShillCallFailure, device_path, error_callback));
 267 }
 268
 269 void NetworkDeviceHandlerImpl::ChangePin(
 270     const std::string& device_path,
 271     const std::string& old_pin,
 272     const std::string& new_pin,
 273     const base::Closure& callback,
 274     const network_handler::ErrorCallback& error_callback) {
 275   DBusThreadManager::Get()->GetShillDeviceClient()->ChangePin(
 276       dbus::ObjectPath(device_path),
 277       old_pin,
 278       new_pin,
 279       callback,
 280       base::Bind(&HandleShillCallFailure, device_path, error_callback));
 281 }
 282
 283 void NetworkDeviceHandlerImpl::SetCellularAllowRoaming(
 284     const bool allow_roaming) {
 285   cellular_allow_roaming_ = allow_roaming;
 286   ApplyCellularAllowRoamingToShill();
 287 }
 288
 289 void NetworkDeviceHandlerImpl::DeviceListChanged() {
 290   ApplyCellularAllowRoamingToShill();
 291 }
 292
 293 NetworkDeviceHandlerImpl::NetworkDeviceHandlerImpl()
 294     : network_state_handler_(NULL),
 295       cellular_allow_roaming_(false) {}
 296
 297 void NetworkDeviceHandlerImpl::Init(
 298     NetworkStateHandler* network_state_handler) {
 299   DCHECK(network_state_handler);
 300   network_state_handler_ = network_state_handler;
 301   network_state_handler_->AddObserver(this, FROM_HERE);
 302 }
 303
 304 void NetworkDeviceHandlerImpl::ApplyCellularAllowRoamingToShill() {
 305   NetworkStateHandler::DeviceStateList list;
 306   network_state_handler_->GetDeviceListByType(NetworkTypePattern::Cellular(),
 307                                               &list);
 308   if (list.empty()) {
 309     NET_LOG_DEBUG("No cellular device is available",
 310                   "Roaming is only supported by cellular devices.");
 311     return;
 312   }
 313   for (NetworkStateHandler::DeviceStateList::const_iterator it = list.begin();
 314       it != list.end(); ++it) {
 315     const DeviceState* device_state = *it;
 316     bool current_device_value;
 317     if (!device_state->properties().GetBooleanWithoutPathExpansion(
 318              shill::kCellularAllowRoamingProperty, &current_device_value)) {
 319       NET_LOG_ERROR(
 320           "Could not get \"allow roaming\" property from cellular "
 321           "device.",
 322           device_state->path());
 323       continue;
 324     }
 325
 326     // If roaming is required by the provider, always try to set to true.
 327     bool new_device_value =
 328         device_state->provider_requires_roaming() || cellular_allow_roaming_;
 329
 330     // Only set the value if the current value is different from
 331     // |new_device_value|.
 332     if (new_device_value == current_device_value)
 333       continue;
 334
 335     SetDevicePropertyInternal(device_state->path(),
 336                               shill::kCellularAllowRoamingProperty,
 337                               base::FundamentalValue(new_device_value),
 338                               base::Bind(&base::DoNothing),
 339                               network_handler::ErrorCallback());
 340   }
 341 }
 342
 343 }  // namespace chromeos