| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chromeos/dbus/shill_service_client.h" |
| |
| #include <map> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/stl_util.h" |
| #include "base/values.h" |
| #include "chromeos/dbus/shill_property_changed_observer.h" |
| #include "chromeos/network/network_event_log.h" |
| #include "dbus/bus.h" |
| #include "dbus/message.h" |
| #include "dbus/object_proxy.h" |
| #include "third_party/cros_system_api/dbus/service_constants.h" |
| |
| namespace chromeos { |
| |
| namespace { |
| |
| #ifndef DBUS_ERROR_UNKNOWN_OBJECT |
| // The linux_chromeos ASAN builder has an older version of dbus-protocol.h |
| // so make sure this is defined. |
| #define DBUS_ERROR_UNKNOWN_OBJECT "org.freedesktop.DBus.Error.UnknownObject" |
| #endif |
| |
| // Error callback for GetProperties. |
| void OnGetDictionaryError( |
| const std::string& method_name, |
| const dbus::ObjectPath& service_path, |
| const ShillServiceClient::DictionaryValueCallback& callback, |
| const std::string& error_name, |
| const std::string& error_message) { |
| const std::string log_string = |
| "Failed to call org.chromium.shill.Service." + method_name + |
| " for: " + service_path.value() + ": " + |
| error_name + ": " + error_message; |
| |
| // Suppress ERROR messages for UnknownMethod/Object" since this can |
| // happen under normal conditions. See crbug.com/130660 and crbug.com/222210. |
| if (error_name == DBUS_ERROR_UNKNOWN_METHOD || |
| error_name == DBUS_ERROR_UNKNOWN_OBJECT) |
| VLOG(1) << log_string; |
| else |
| LOG(ERROR) << log_string; |
| |
| base::DictionaryValue empty_dictionary; |
| callback.Run(DBUS_METHOD_CALL_FAILURE, empty_dictionary); |
| } |
| |
| // The ShillServiceClient implementation. |
| class ShillServiceClientImpl : public ShillServiceClient { |
| public: |
| ShillServiceClientImpl() : bus_(NULL), weak_ptr_factory_(this) {} |
| |
| ~ShillServiceClientImpl() override { |
| for (HelperMap::iterator iter = helpers_.begin(); |
| iter != helpers_.end(); ++iter) { |
| ShillClientHelper* helper = iter->second; |
| bus_->RemoveObjectProxy(shill::kFlimflamServiceName, |
| helper->object_proxy()->object_path(), |
| base::DoNothing()); |
| delete helper; |
| } |
| } |
| |
| void AddPropertyChangedObserver( |
| const dbus::ObjectPath& service_path, |
| ShillPropertyChangedObserver* observer) override { |
| GetHelper(service_path)->AddPropertyChangedObserver(observer); |
| } |
| |
| void RemovePropertyChangedObserver( |
| const dbus::ObjectPath& service_path, |
| ShillPropertyChangedObserver* observer) override { |
| GetHelper(service_path)->RemovePropertyChangedObserver(observer); |
| } |
| |
| void GetProperties(const dbus::ObjectPath& service_path, |
| const DictionaryValueCallback& callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kGetPropertiesFunction); |
| GetHelper(service_path)->CallDictionaryValueMethodWithErrorCallback( |
| &method_call, |
| base::Bind(callback, DBUS_METHOD_CALL_SUCCESS), |
| base::Bind(&OnGetDictionaryError, "GetProperties", |
| service_path, callback)); |
| } |
| |
| void SetProperty(const dbus::ObjectPath& service_path, |
| const std::string& name, |
| const base::Value& value, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kSetPropertyFunction); |
| dbus::MessageWriter writer(&method_call); |
| writer.AppendString(name); |
| ShillClientHelper::AppendValueDataAsVariant(&writer, value); |
| GetHelper(service_path)->CallVoidMethodWithErrorCallback(&method_call, |
| callback, |
| error_callback); |
| } |
| |
| void SetProperties(const dbus::ObjectPath& service_path, |
| const base::DictionaryValue& properties, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kSetPropertiesFunction); |
| dbus::MessageWriter writer(&method_call); |
| ShillClientHelper::AppendServicePropertiesDictionary(&writer, properties); |
| GetHelper(service_path)->CallVoidMethodWithErrorCallback(&method_call, |
| callback, |
| error_callback); |
| } |
| |
| void ClearProperty(const dbus::ObjectPath& service_path, |
| const std::string& name, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kClearPropertyFunction); |
| dbus::MessageWriter writer(&method_call); |
| writer.AppendString(name); |
| GetHelper(service_path)->CallVoidMethodWithErrorCallback(&method_call, |
| callback, |
| error_callback); |
| } |
| |
| void ClearProperties(const dbus::ObjectPath& service_path, |
| const std::vector<std::string>& names, |
| const ListValueCallback& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kClearPropertiesFunction); |
| dbus::MessageWriter writer(&method_call); |
| writer.AppendArrayOfStrings(names); |
| GetHelper(service_path)->CallListValueMethodWithErrorCallback( |
| &method_call, |
| callback, |
| error_callback); |
| } |
| |
| void Connect(const dbus::ObjectPath& service_path, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kConnectFunction); |
| GetHelper(service_path)->CallVoidMethodWithErrorCallback( |
| &method_call, callback, error_callback); |
| } |
| |
| void Disconnect(const dbus::ObjectPath& service_path, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kDisconnectFunction); |
| GetHelper(service_path)->CallVoidMethodWithErrorCallback(&method_call, |
| callback, |
| error_callback); |
| } |
| |
| void Remove(const dbus::ObjectPath& service_path, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kRemoveServiceFunction); |
| GetHelper(service_path)->CallVoidMethodWithErrorCallback(&method_call, |
| callback, |
| error_callback); |
| } |
| |
| void ActivateCellularModem(const dbus::ObjectPath& service_path, |
| const std::string& carrier, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kActivateCellularModemFunction); |
| dbus::MessageWriter writer(&method_call); |
| writer.AppendString(carrier); |
| GetHelper(service_path)->CallVoidMethodWithErrorCallback(&method_call, |
| callback, |
| error_callback); |
| } |
| |
| void CompleteCellularActivation( |
| const dbus::ObjectPath& service_path, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kCompleteCellularActivationFunction); |
| dbus::MessageWriter writer(&method_call); |
| GetHelper(service_path)->CallVoidMethodWithErrorCallback(&method_call, |
| callback, |
| error_callback); |
| } |
| |
| void GetLoadableProfileEntries( |
| const dbus::ObjectPath& service_path, |
| const DictionaryValueCallback& callback) override { |
| dbus::MethodCall method_call(shill::kFlimflamServiceInterface, |
| shill::kGetLoadableProfileEntriesFunction); |
| GetHelper(service_path)->CallDictionaryValueMethodWithErrorCallback( |
| &method_call, |
| base::Bind(callback, DBUS_METHOD_CALL_SUCCESS), |
| base::Bind(&OnGetDictionaryError, "GetLoadableProfileEntries", |
| service_path, callback)); |
| } |
| |
| ShillServiceClient::TestInterface* GetTestInterface() override { |
| return NULL; |
| } |
| |
| protected: |
| void Init(dbus::Bus* bus) override { bus_ = bus; } |
| |
| private: |
| typedef std::map<std::string, ShillClientHelper*> HelperMap; |
| |
| // Returns the corresponding ShillClientHelper for the profile. |
| ShillClientHelper* GetHelper(const dbus::ObjectPath& service_path) { |
| HelperMap::iterator it = helpers_.find(service_path.value()); |
| if (it != helpers_.end()) |
| return it->second; |
| |
| // There is no helper for the profile, create it. |
| dbus::ObjectProxy* object_proxy = |
| bus_->GetObjectProxy(shill::kFlimflamServiceName, service_path); |
| ShillClientHelper* helper = new ShillClientHelper(object_proxy); |
| helper->SetReleasedCallback( |
| base::Bind(&ShillServiceClientImpl::NotifyReleased, |
| weak_ptr_factory_.GetWeakPtr())); |
| helper->MonitorPropertyChanged(shill::kFlimflamServiceInterface); |
| helpers_.insert(HelperMap::value_type(service_path.value(), helper)); |
| return helper; |
| } |
| |
| void NotifyReleased(ShillClientHelper* helper) { |
| // New Shill Service DBus objects are created relatively frequently, so |
| // remove them when they become inactive (no observers and no active method |
| // calls). |
| dbus::ObjectPath object_path = helper->object_proxy()->object_path(); |
| // Make sure we don't release the proxy used by ShillManagerClient ("/"). |
| // This shouldn't ever happen, but might if a bug in the code requests |
| // a service with path "/", or a bug in Shill passes "/" as a service path. |
| // Either way this would cause an invalid memory access in |
| // ShillManagerClient, see crbug.com/324849. |
| if (object_path == dbus::ObjectPath(shill::kFlimflamServicePath)) { |
| NET_LOG_ERROR("ShillServiceClient service has invalid path", |
| shill::kFlimflamServicePath); |
| return; |
| } |
| bus_->RemoveObjectProxy(shill::kFlimflamServiceName, object_path, |
| base::DoNothing()); |
| helpers_.erase(object_path.value()); |
| delete helper; |
| } |
| |
| dbus::Bus* bus_; |
| HelperMap helpers_; |
| base::WeakPtrFactory<ShillServiceClientImpl> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ShillServiceClientImpl); |
| }; |
| |
| } // namespace |
| |
| ShillServiceClient::ShillServiceClient() = default; |
| |
| ShillServiceClient::~ShillServiceClient() = default; |
| |
| // static |
| ShillServiceClient* ShillServiceClient::Create() { |
| return new ShillServiceClientImpl(); |
| } |
| |
| } // namespace chromeos |