1 // Copyright (c) 2006-2008 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 "sandbox/win/src/sandbox.h"
6 
7 #include <windows.h>
8 
9 #include "sandbox/win/src/broker_services.h"
10 #include "sandbox/win/src/sandbox_factory.h"
11 #include "sandbox/win/src/target_services.h"
12 
13 namespace sandbox {
14 // The section for IPC and policy.
15 SANDBOX_INTERCEPT HANDLE g_shared_section;
16 static bool s_is_broker = false;
17 
18 // GetBrokerServices: the current implementation relies on a shared section
19 // that is created by the broker and opened by the target.
GetBrokerServices()20 BrokerServices* SandboxFactory::GetBrokerServices() {
21   // Can't be the broker if the shared section is open.
22   if (g_shared_section)
23     return nullptr;
24   // If the shared section does not exist we are the broker, then create
25   // the broker object.
26   s_is_broker = true;
27   return BrokerServicesBase::GetInstance();
28 }
29 
30 // GetTargetServices implementation must follow the same technique as the
31 // GetBrokerServices, but in this case the logic is the opposite.
GetTargetServices()32 TargetServices* SandboxFactory::GetTargetServices() {
33   // Can't be the target if the section handle is not valid.
34   if (!g_shared_section)
35     return nullptr;
36   // We are the target
37   s_is_broker = false;
38   // Creates and returns the target services implementation.
39   return TargetServicesBase::GetInstance();
40 }
41 
42 }  // namespace sandbox
43 
44 // Allows querying for whether the current process has been sandboxed.
IsSandboxedProcess()45 extern "C" bool __declspec(dllexport) IsSandboxedProcess() {
46   return !!sandbox::g_shared_section;
47 }
48