| // Copyright (c) 2011 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_WOW64_H__ |
| #define SANDBOX_SRC_WOW64_H__ |
| |
| #include <windows.h> |
| |
| #include "base/basictypes.h" |
| #include "sandbox/win/src/sandbox_types.h" |
| |
| namespace sandbox { |
| |
| class TargetProcess; |
| |
| // This class wraps the code needed to interact with the Windows On Windows |
| // subsystem on 64 bit OSes, from the point of view of interceptions. |
| class Wow64 { |
| public: |
| Wow64(TargetProcess* child, HMODULE ntdll) |
| : child_(child), ntdll_(ntdll), dll_load_(NULL), continue_load_(NULL) {} |
| ~Wow64(); |
| |
| // Waits for the 32 bit DLL to get loaded on the child process. This function |
| // will return immediately if not running under WOW, or launch the helper |
| // process and wait until ntdll is ready. |
| bool WaitForNtdll(); |
| |
| private: |
| // Runs the WOW helper process, passing the address of a buffer allocated on |
| // the child (one page). |
| bool RunWowHelper(void* buffer); |
| |
| // This method receives "notifications" whenever a DLL is mapped on the child. |
| bool DllMapped(); |
| |
| // Returns true if ntdll.dll is mapped on the child. |
| bool NtdllPresent(); |
| |
| TargetProcess* child_; // Child process. |
| HMODULE ntdll_; // ntdll on the parent. |
| HANDLE dll_load_; // Event that is signaled on dll load. |
| HANDLE continue_load_; // Event to signal to continue execution on the child. |
| DISALLOW_IMPLICIT_CONSTRUCTORS(Wow64); |
| }; |
| |
| } // namespace sandbox |
| |
| #endif // SANDBOX_SRC_WOW64_H__ |