// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SANDBOX_SRC_TARGET_SERVICES_H__
#define SANDBOX_SRC_TARGET_SERVICES_H__

#include "base/basictypes.h"
#include "sandbox/win/src/sandbox.h"
#include "sandbox/win/src/win_utils.h"

namespace sandbox {

class ProcessState {
 public:
  ProcessState() : process_state_(0) {}

  // Returns true if kernel32.dll has been loaded.
  bool IsKernel32Loaded();

  // Returns true if main has been called.
  bool InitCalled();

  // Returns true if LowerToken has been called.
  bool RevertedToSelf();

  // Set the current state.
  void SetKernel32Loaded();
  void SetInitCalled();
  void SetRevertedToSelf();

 public:
  int process_state_;
  DISALLOW_COPY_AND_ASSIGN(ProcessState);
};

// This class is an implementation of the  TargetServices.
// Look in the documentation of sandbox::TargetServices for more info.
// Do NOT add a destructor to this class without changing the implementation of
// the factory method.
class TargetServicesBase : public TargetServices {
 public:
  TargetServicesBase();

  // Public interface of TargetServices.
  virtual ResultCode Init();
  virtual void LowerToken();
  virtual ProcessState* GetState();
  virtual ResultCode DuplicateHandle(HANDLE source_handle,
                                     DWORD target_process_id,
                                     HANDLE* target_handle,
                                     DWORD desired_access,
                                     DWORD options);

  // Factory method.
  static TargetServicesBase* GetInstance();

  // Sends a simple IPC Message that has a well-known answer. Returns true
  // if the IPC was successful and false otherwise. There are 2 versions of
  // this test: 1 and 2. The first one send a simple message while the
  // second one send a message with an in/out param.
  bool TestIPCPing(int version);

 private:
  ProcessState process_state_;
  DISALLOW_COPY_AND_ASSIGN(TargetServicesBase);
};

}  // namespace sandbox

#endif  // SANDBOX_SRC_TARGET_SERVICES_H__