blob: 1e32278b0d534fdbdb11d0b24c1a56f0cee2839c [file] [log] [blame]
// Copyright 2019 The Chromium OS 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 <deque>
#include <memory>
#include <base/files/file_descriptor_watcher_posix.h>
#include <base/files/scoped_file.h>
#include <base/memory/weak_ptr.h>
#include <brillo/daemons/dbus_daemon.h>
#include <dbus/bus.h>
#include "patchpanel/message_dispatcher.h"
#include "patchpanel/socket.h"
#include "patchpanel/socket_forwarder.h"
namespace patchpanel {
// Running the proxy on port 5555 will cause ADBD to see it as an Android
// emulator rather than an attached device. This means, whenever host ADBD
// server runs a device named "emulator-5554" will show up.
// Connections to ARC via ADB (including by Tast) should now be done by
// starting ADB server (e.g. 'adb devices') instead of
// 'adb connect' to avoid seeing multiple devices.
constexpr uint16_t kAdbProxyTcpListenPort = 5555;
// Subprocess for proxying ADB traffic.
class AdbProxy : public brillo::DBusDaemon {
explicit AdbProxy(base::ScopedFD control_fd);
AdbProxy(const AdbProxy&) = delete;
AdbProxy& operator=(const AdbProxy&) = delete;
virtual ~AdbProxy();
int OnInit() override;
void OnParentProcessExit();
void OnGuestMessage(const GuestMessage& msg);
void InitialSetup();
void Reset();
void OnFileCanReadWithoutBlocking();
// Attempts to establish a connection to ADB at well-known destinations.
std::unique_ptr<Socket> Connect() const;
// Start listening for ADB connection. Only listen when ARC guest is started
// and either Chrome OS is in developer mode or ADB sideloading is turned on.
void Listen();
// Checks ADB sideloading status and set it to |adb_sideloading_enabled_|.
// This function will call itself again if ADB sideloading status is not
// known yet. If ADB sideloading status is enabled and guest is started,
// start listening for connections.
void CheckAdbSideloadingStatus(int num_try);
MessageDispatcher msg_dispatcher_;
std::unique_ptr<Socket> src_;
std::deque<std::unique_ptr<SocketForwarder>> fwd_;
std::unique_ptr<base::FileDescriptorWatcher::Controller> src_watcher_;
GuestMessage::GuestType arc_type_;
uint32_t arcvm_vsock_cid_;
bool dev_mode_enabled_;
bool adb_sideloading_enabled_;
base::WeakPtrFactory<AdbProxy> weak_factory_{this};
} // namespace patchpanel