blob: 9342ef0626d4da63bf1ab77cdad408824efd5f06 [file] [log] [blame]
// Copyright 2014 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 <AvailabilityMacros.h>
#include <memory>
#include "base/mac/dispatch_source_mach.h"
#include "base/mac/scoped_mach_port.h"
#include "base/macros.h"
#include "sandbox/mac/message_server.h"
#include "sandbox/mac/xpc.h"
#include "sandbox/sandbox_export.h"
namespace sandbox {
// An implementation of MessageServer that uses XPC pipes to read and write XPC
// messages from a Mach port.
class SANDBOX_EXPORT XPCMessageServer : public MessageServer {
// Creates a new XPC message server that will send messages to |demuxer|
// for handling. If the |server_receive_right| is non-NULL, this class will
// take ownership of the port and it will be used to receive messages.
// Otherwise the server will create a new receive right on which to listen.
XPCMessageServer(MessageDemuxer* demuxer,
mach_port_t server_receive_right);
~XPCMessageServer() override;
// MessageServer:
bool Initialize() override;
void Shutdown() override;
pid_t GetMessageSenderPID(IPCMessage request) override;
IPCMessage CreateReply(IPCMessage request) override;
bool SendReply(IPCMessage reply) override;
void ForwardMessage(IPCMessage request, mach_port_t destination) override;
// Creates an error reply message with a field "error" set to |error_code|.
void RejectMessage(IPCMessage request, int error_code) override;
mach_port_t GetServerPort() const override;
// Reads a message from the XPC pipe.
void ReceiveMessage();
// The demuxer delegate. Weak.
MessageDemuxer* demuxer_;
// The Mach port on which the server is receiving requests.
base::mac::ScopedMachReceiveRight server_port_;
// MACH_RECV dispatch source that handles the |server_port_|.
std::unique_ptr<base::DispatchSourceMach> dispatch_source_;
// The reply message, if one has been created.
xpc_object_t reply_message_;
} // namespace sandbox