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 // 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_WIN_SRC_TARGET_PROCESS_H_

 #define SANDBOX_WIN_SRC_TARGET_PROCESS_H_

 #include <windows.h>

 #include "base/basictypes.h"

 #include "base/memory/scoped_ptr.h"

 #include "base/win/scoped_handle.h"

 #include "base/win/scoped_process_information.h"

 #include "sandbox/win/src/crosscall_server.h"

 #include "sandbox/win/src/sandbox_types.h"

 namespace base {

 namespace win {

 class StartupInformation;

 };  // namespace win

 };  // namespace base

 namespace sandbox {

 class AttributeList;

 class SharedMemIPCServer;

 class ThreadProvider;

 // TargetProcess models a target instance (child process). Objects of this

 // class are owned by the Policy used to create them.

 class TargetProcess {

  public:

   // The constructor takes ownership of |initial_token| and |lockdown_token|.

   TargetProcess(HANDLE initial_token, HANDLE lockdown_token, HANDLE job,

                 ThreadProvider* thread_pool);

   ~TargetProcess();

   // TODO(cpu): Currently there does not seem to be a reason to implement

   // reference counting for this class since is internal, but kept the

   // the same interface so the interception framework does not need to be

   // touched at this point.

   void AddRef() {}

   void Release() {}

   // Creates the new target process. The process is created suspended.

   DWORD Create(const wchar_t* exe_path,

                const wchar_t* command_line,

                bool inherit_handles,

                const base::win::StartupInformation& startup_info,

                base::win::ScopedProcessInformation* target_info);

   // Destroys the target process.

   void Terminate();

   // Creates the IPC objects such as the BrokerDispatcher and the

   // IPC server. The IPC server uses the services of the thread_pool.

   DWORD Init(Dispatcher* ipc_dispatcher, void* policy,

              uint32 shared_IPC_size, uint32 shared_policy_size);

   // Returns the handle to the target process.

   HANDLE Process() const {

     return sandbox_process_info_.process_handle();

   }

   // Returns the handle to the job object that the target process belongs to.

   HANDLE Job() const {

     return job_;

   }

   // Returns the address of the target main exe. This is used by the

   // interceptions framework.

   HMODULE MainModule() const {

     return reinterpret_cast<HMODULE>(base_address_);

   }

   // Returns the name of the executable.

   const wchar_t* Name() const {

     return exe_name_.get();

   }

   // Returns the process id.

   DWORD ProcessId() const {

     return sandbox_process_info_.process_id();

   }

   // Returns the handle to the main thread.

   HANDLE MainThread() const {

     return sandbox_process_info_.thread_handle();

   }

   // Transfers a 32-bit variable between the broker and the target.

   ResultCode TransferVariable(const char* name, void* address, size_t size);

  private:

   // Details of the target process.

   base::win::ScopedProcessInformation sandbox_process_info_;

   // The token associated with the process. It provides the core of the

   // sbox security.

   base::win::ScopedHandle lockdown_token_;

   // The token given to the initial thread so that the target process can

   // start. It has more powers than the lockdown_token.

   base::win::ScopedHandle initial_token_;

   // Kernel handle to the shared memory used by the IPC server.

   base::win::ScopedHandle shared_section_;

   // Job object containing the target process.

   HANDLE job_;

   // Reference to the IPC subsystem.

   scoped_ptr<SharedMemIPCServer> ipc_server_;

   // Provides the threads used by the IPC. This class does not own this pointer.

   ThreadProvider* thread_pool_;

   // Base address of the main executable

   void* base_address_;

   // Full name of the target executable.

   scoped_ptr_malloc<wchar_t> exe_name_;

   // Function used for testing.

   friend TargetProcess* MakeTestTargetProcess(HANDLE process,

                                               HMODULE base_address);

   DISALLOW_IMPLICIT_CONSTRUCTORS(TargetProcess);

 };

 // Creates a mock TargetProcess used for testing interceptions.

 // TODO(cpu): It seems that this method is not going to be used anymore.

 TargetProcess* MakeTestTargetProcess(HANDLE process, HMODULE base_address);

 }  // namespace sandbox

 #endif  // SANDBOX_WIN_SRC_TARGET_PROCESS_H_