content/browser/bootstrap_sandbox_mac.cc

   1 // Copyright 2014 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/browser/bootstrap_sandbox_mac.h"
   6
   7 #include "base/logging.h"
   8 #include "base/mac/mac_util.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/singleton.h"
  11 #include "content/common/sandbox_init_mac.h"
  12 #include "content/public/browser/browser_child_process_observer.h"
  13 #include "content/public/browser/child_process_data.h"
  14 #include "content/public/common/sandbox_type_mac.h"
  15 #include "sandbox/mac/bootstrap_sandbox.h"
  16
  17 namespace content {
  18
  19 namespace {
  20
  21 // This class is responsible for creating the BootstrapSandbox global
  22 // singleton, as well as registering all associated policies with it.
  23 class BootstrapSandboxPolicy : public BrowserChildProcessObserver {
  24  public:
  25   static BootstrapSandboxPolicy* GetInstance();
  26
  27   sandbox::BootstrapSandbox* sandbox() const {
  28     return sandbox_.get();
  29   }
  30
  31   // BrowserChildProcessObserver:
  32   virtual void BrowserChildProcessHostDisconnected(
  33       const ChildProcessData& data) OVERRIDE;
  34   virtual void BrowserChildProcessCrashed(
  35       const ChildProcessData& data) OVERRIDE;
  36
  37  private:
  38   friend struct DefaultSingletonTraits<BootstrapSandboxPolicy>;
  39   BootstrapSandboxPolicy();
  40   virtual ~BootstrapSandboxPolicy();
  41
  42   void RegisterSandboxPolicies();
  43
  44   scoped_ptr<sandbox::BootstrapSandbox> sandbox_;
  45 };
  46
  47 BootstrapSandboxPolicy* BootstrapSandboxPolicy::GetInstance() {
  48   return Singleton<BootstrapSandboxPolicy>::get();
  49 }
  50
  51 void BootstrapSandboxPolicy::BrowserChildProcessHostDisconnected(
  52       const ChildProcessData& data) {
  53   sandbox()->ChildDied(data.handle);
  54 }
  55
  56 void BootstrapSandboxPolicy::BrowserChildProcessCrashed(
  57       const ChildProcessData& data) {
  58   sandbox()->ChildDied(data.handle);
  59 }
  60
  61 BootstrapSandboxPolicy::BootstrapSandboxPolicy()
  62     : sandbox_(sandbox::BootstrapSandbox::Create()) {
  63   CHECK(sandbox_.get());
  64   BrowserChildProcessObserver::Add(this);
  65   RegisterSandboxPolicies();
  66 }
  67
  68 BootstrapSandboxPolicy::~BootstrapSandboxPolicy() {
  69   BrowserChildProcessObserver::Remove(this);
  70 }
  71
  72 void BootstrapSandboxPolicy::RegisterSandboxPolicies() {
  73 }
  74
  75 }  // namespace
  76
  77 bool ShouldEnableBootstrapSandbox() {
  78   return base::mac::IsOSMountainLionOrEarlier() ||
  79          base::mac::IsOSMavericks();
  80 }
  81
  82 sandbox::BootstrapSandbox* GetBootstrapSandbox() {
  83   return BootstrapSandboxPolicy::GetInstance()->sandbox();
  84 }
  85
  86 }  // namespace content