| // 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. |
| |
| #ifndef SANDBOX_MAC_XPC_MESSAGE_SERVER_H_ |
| #define SANDBOX_MAC_XPC_MESSAGE_SERVER_H_ |
| |
| #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 { |
| public: |
| // 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; |
| |
| private: |
| // 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_; |
| |
| DISALLOW_COPY_AND_ASSIGN(XPCMessageServer); |
| }; |
| |
| } // namespace sandbox |
| |
| #endif // SANDBOX_MAC_XPC_MESSAGE_SERVER_H_ |