remoting/host/ipc_util_posix.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "remoting/host/ipc_util.h"
   6
   7 #include <fcntl.h>
   8 #include <sys/socket.h>
   9 #include <sys/types.h>
  10 #include <unistd.h>
  11
  12 #include "base/files/file.h"
  13 #include "base/logging.h"
  14 #include "base/posix/eintr_wrapper.h"
  15 #include "base/single_thread_task_runner.h"
  16 #include "ipc/ipc_channel.h"
  17 #include "ipc/ipc_channel_proxy.h"
  18
  19 namespace remoting {
  20
  21 bool CreateConnectedIpcChannel(
  22     scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
  23     IPC::Listener* listener,
  24     base::File* client_out,
  25     scoped_ptr<IPC::ChannelProxy>* server_out) {
  26   // Create a socket pair.
  27   int pipe_fds[2];
  28   if (socketpair(AF_UNIX, SOCK_STREAM, 0, pipe_fds) != 0) {
  29     PLOG(ERROR) << "socketpair()";
  30     return false;
  31   }
  32
  33   // Set both ends to be non-blocking.
  34   if (fcntl(pipe_fds[0], F_SETFL, O_NONBLOCK) == -1 ||
  35       fcntl(pipe_fds[1], F_SETFL, O_NONBLOCK) == -1) {
  36     PLOG(ERROR) << "fcntl(O_NONBLOCK)";
  37     if (IGNORE_EINTR(close(pipe_fds[0])) < 0)
  38       PLOG(ERROR) << "close()";
  39     if (IGNORE_EINTR(close(pipe_fds[1])) < 0)
  40       PLOG(ERROR) << "close()";
  41     return false;
  42   }
  43
  44   std::string socket_name = "Chromoting socket";
  45
  46   // Wrap the pipe into an IPC channel.
  47   base::FileDescriptor fd(pipe_fds[0], false);
  48   IPC::ChannelHandle handle(socket_name, fd);
  49   *server_out = IPC::ChannelProxy::Create(IPC::ChannelHandle(socket_name, fd),
  50                                           IPC::Channel::MODE_SERVER,
  51                                           listener,
  52                                           io_task_runner.get(),
  53                                           nullptr);
  54
  55   *client_out = base::File(pipe_fds[1]);
  56   return true;
  57 }
  58
  59 } // namespace remoting