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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/dbus/arc/arc_keymaster_client.h"
#include <memory>
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/raw_ptr.h"
#include "chromeos/ash/components/dbus/arc/fake_arc_keymaster_client.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 ash {
namespace {
ArcKeymasterClient* g_instance = nullptr;
void OnVoidDBusMethod(chromeos::VoidDBusMethodCallback callback,
dbus::Response* response) {
std::move(callback).Run(response != nullptr);
}
class ArcKeymasterClientImpl : public ArcKeymasterClient {
public:
ArcKeymasterClientImpl() = default;
ArcKeymasterClientImpl(const ArcKeymasterClientImpl&) = delete;
ArcKeymasterClientImpl& operator=(const ArcKeymasterClientImpl&) = delete;
~ArcKeymasterClientImpl() override = default;
void BootstrapMojoConnection(
base::ScopedFD fd,
chromeos::VoidDBusMethodCallback callback) override {
dbus::MethodCall method_call(
arc::keymaster::kArcKeymasterInterfaceName,
arc::keymaster::kBootstrapMojoConnectionMethod);
dbus::MessageWriter writer(&method_call);
writer.AppendFileDescriptor(fd.get());
proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::BindOnce(&OnVoidDBusMethod, std::move(callback)));
}
void Init(dbus::Bus* bus) override {
proxy_ = bus->GetObjectProxy(
arc::keymaster::kArcKeymasterServiceName,
dbus::ObjectPath(arc::keymaster::kArcKeymasterServicePath));
}
private:
// Owned by the D-Bus implementation, who outlives this class.
raw_ptr<dbus::ObjectProxy> proxy_ = nullptr;
};
} // namespace
////////////////////////////////////////////////////////////////////////////////
// ArcKeymasterClient
// static
ArcKeymasterClient* ArcKeymasterClient::Get() {
return g_instance;
}
// static
void ArcKeymasterClient::Initialize(dbus::Bus* bus) {
CHECK(bus);
(new ArcKeymasterClientImpl())->Init(bus);
}
// static
void ArcKeymasterClient::InitializeFake() {
(new FakeArcKeymasterClient())->Init(nullptr);
}
// static
void ArcKeymasterClient::Shutdown() {
CHECK(g_instance);
delete g_instance;
}
ArcKeymasterClient::ArcKeymasterClient() {
CHECK(!g_instance);
g_instance = this;
}
ArcKeymasterClient::~ArcKeymasterClient() {
CHECK_EQ(g_instance, this);
g_instance = nullptr;
}
} // namespace ash
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