1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/sandbox/win/src/Wow64.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,50 @@
1.4 +// Copyright (c) 2011 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef SANDBOX_SRC_WOW64_H__
1.9 +#define SANDBOX_SRC_WOW64_H__
1.10 +
1.11 +#include <windows.h>
1.12 +
1.13 +#include "base/basictypes.h"
1.14 +#include "sandbox/win/src/sandbox_types.h"
1.15 +
1.16 +namespace sandbox {
1.17 +
1.18 +class TargetProcess;
1.19 +
1.20 +// This class wraps the code needed to interact with the Windows On Windows
1.21 +// subsystem on 64 bit OSes, from the point of view of interceptions.
1.22 +class Wow64 {
1.23 + public:
1.24 + Wow64(TargetProcess* child, HMODULE ntdll)
1.25 + : child_(child), ntdll_(ntdll), dll_load_(NULL), continue_load_(NULL) {}
1.26 + ~Wow64();
1.27 +
1.28 + // Waits for the 32 bit DLL to get loaded on the child process. This function
1.29 + // will return immediately if not running under WOW, or launch the helper
1.30 + // process and wait until ntdll is ready.
1.31 + bool WaitForNtdll();
1.32 +
1.33 + private:
1.34 + // Runs the WOW helper process, passing the address of a buffer allocated on
1.35 + // the child (one page).
1.36 + bool RunWowHelper(void* buffer);
1.37 +
1.38 + // This method receives "notifications" whenever a DLL is mapped on the child.
1.39 + bool DllMapped();
1.40 +
1.41 + // Returns true if ntdll.dll is mapped on the child.
1.42 + bool NtdllPresent();
1.43 +
1.44 + TargetProcess* child_; // Child process.
1.45 + HMODULE ntdll_; // ntdll on the parent.
1.46 + HANDLE dll_load_; // Event that is signaled on dll load.
1.47 + HANDLE continue_load_; // Event to signal to continue execution on the child.
1.48 + DISALLOW_IMPLICIT_CONSTRUCTORS(Wow64);
1.49 +};
1.50 +
1.51 +} // namespace sandbox
1.52 +
1.53 +#endif // SANDBOX_SRC_WOW64_H__
