components/nacl/loader/nacl_main_platform_delegate_win.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 "components/nacl/loader/nacl_main_platform_delegate.h"
   6
   7 #include "base/logging.h"
   8 #include "sandbox/win/src/sandbox.h"
   9
  10 NaClMainPlatformDelegate::NaClMainPlatformDelegate(
  11     const content::MainFunctionParams& parameters)
  12     : parameters_(parameters) {
  13 }
  14
  15 NaClMainPlatformDelegate::~NaClMainPlatformDelegate() {
  16 }
  17
  18 void NaClMainPlatformDelegate::EnableSandbox() {
  19   sandbox::TargetServices* target_services =
  20       parameters_.sandbox_info->target_services;
  21
  22   CHECK(target_services) << "NaCl-Win EnableSandbox: No Target Services!";
  23   // Cause advapi32 to load before the sandbox is turned on.
  24   unsigned int dummy_rand;
  25   rand_s(&dummy_rand);
  26   // Warm up language subsystems before the sandbox is turned on.
  27   ::GetUserDefaultLangID();
  28   ::GetUserDefaultLCID();
  29
  30 #if defined(ADDRESS_SANITIZER)
  31     // Bind and leak dbghelp.dll before the token is lowered, otherwise
  32     // AddressSanitizer will crash when trying to symbolize a report.
  33     CHECK(LoadLibraryA("dbghelp.dll"));
  34 #endif
  35
  36   // Turn the sandbox on.
  37   target_services->LowerToken();
  38 }