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   void BrowserChildProcessHostDisconnected(
  33       const ChildProcessData& data) override;
  34   void BrowserChildProcessCrashed(
  35       const ChildProcessData& data,
  36       int exit_code) override;
  37
  38  private:
  39   friend struct DefaultSingletonTraits<BootstrapSandboxPolicy>;
  40   BootstrapSandboxPolicy();
  41   ~BootstrapSandboxPolicy() override;
  42
  43   void RegisterSandboxPolicies();
  44
  45   scoped_ptr<sandbox::BootstrapSandbox> sandbox_;
  46 };
  47
  48 BootstrapSandboxPolicy* BootstrapSandboxPolicy::GetInstance() {
  49   return Singleton<BootstrapSandboxPolicy>::get();
  50 }
  51
  52 void BootstrapSandboxPolicy::BrowserChildProcessHostDisconnected(
  53       const ChildProcessData& data) {
  54   sandbox()->ChildDied(data.handle);
  55 }
  56
  57 void BootstrapSandboxPolicy::BrowserChildProcessCrashed(
  58       const ChildProcessData& data,
  59       int exit_code) {
  60   sandbox()->ChildDied(data.handle);
  61 }
  62
  63 BootstrapSandboxPolicy::BootstrapSandboxPolicy()
  64     : sandbox_(sandbox::BootstrapSandbox::Create()) {
  65   CHECK(sandbox_.get());
  66   BrowserChildProcessObserver::Add(this);
  67   RegisterSandboxPolicies();
  68 }
  69
  70 BootstrapSandboxPolicy::~BootstrapSandboxPolicy() {
  71   BrowserChildProcessObserver::Remove(this);
  72 }
  73
  74 void BootstrapSandboxPolicy::RegisterSandboxPolicies() {
  75 }
  76
  77 }  // namespace
  78
  79 bool ShouldEnableBootstrapSandbox() {
  80   return base::mac::IsOSMountainLionOrEarlier() ||
  81          base::mac::IsOSMavericks();
  82 }
  83
  84 sandbox::BootstrapSandbox* GetBootstrapSandbox() {
  85   return BootstrapSandboxPolicy::GetInstance()->sandbox();
  86 }
  87
  88 }  // namespace content