content/common/child_process_sandbox_support_impl_shm_linux.cc

   1 // Copyright (c) 2012 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 "content/common/child_process_sandbox_support_impl_linux.h"
   6
   7 #include "base/pickle.h"
   8 #include "base/posix/unix_domain_socket_linux.h"
   9 #include "content/common/sandbox_linux/sandbox_linux.h"
  10
  11 namespace content {
  12
  13 int MakeSharedMemorySegmentViaIPC(size_t length, bool executable) {
  14   base::Pickle request;
  15   request.WriteInt(LinuxSandbox::METHOD_MAKE_SHARED_MEMORY_SEGMENT);
  16   request.WriteUInt32(length);
  17   request.WriteBool(executable);
  18   uint8_t reply_buf[10];
  19   int result_fd;
  20   ssize_t result = base::UnixDomainSocket::SendRecvMsg(
  21       GetSandboxFD(), reply_buf, sizeof(reply_buf), &result_fd, request);
  22   if (result == -1)
  23     return -1;
  24   return result_fd;
  25 }
  26
  27 }  // namespace content