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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Wow_helper.exe is a simple Win32 64-bit executable designed to help to | 5 // Wow_helper.exe is a simple Win32 64-bit executable designed to help to |
6 // sandbox a 32 bit application running on a 64 bit OS. The basic idea is to | 6 // sandbox a 32 bit application running on a 64 bit OS. The basic idea is to |
7 // perform a 64 bit interception of the target process and notify the 32-bit | 7 // perform a 64 bit interception of the target process and notify the 32-bit |
8 // broker process whenever a DLL is being loaded. This allows the broker to | 8 // broker process whenever a DLL is being loaded. This allows the broker to |
9 // setup the interceptions (32-bit) properly on the target. | 9 // setup the interceptions (32-bit) properly on the target. |
10 | 10 |
11 #include <windows.h> | 11 #include <windows.h> |
12 | 12 |
13 #include <string> | 13 #include <string> |
14 | 14 |
15 #include "sandbox/wow_helper/service64_resolver.h" | 15 #include "sandbox/win/wow_helper/service64_resolver.h" |
16 #include "sandbox/wow_helper/target_code.h" | 16 #include "sandbox/win/wow_helper/target_code.h" |
17 | 17 |
18 namespace { | 18 namespace { |
19 | 19 |
20 // Grabbed from base/string_util.h | 20 // Grabbed from base/string_util.h |
21 template <class string_type> | 21 template <class string_type> |
22 inline typename string_type::value_type* WriteInto(string_type* str, | 22 inline typename string_type::value_type* WriteInto(string_type* str, |
23 size_t length_with_null) { | 23 size_t length_with_null) { |
24 str->reserve(length_with_null); | 24 str->reserve(length_with_null); |
25 str->resize(length_with_null - 1); | 25 str->resize(length_with_null - 1); |
26 return &((*str)[0]); | 26 return &((*str)[0]); |
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114 | 114 |
115 DWORD buffer = wcstoul(next, NULL, 0); | 115 DWORD buffer = wcstoul(next, NULL, 0); |
116 if (!buffer) | 116 if (!buffer) |
117 return 4; | 117 return 4; |
118 | 118 |
119 void* thunk = reinterpret_cast<void*>(static_cast<ULONG_PTR>(buffer)); | 119 void* thunk = reinterpret_cast<void*>(static_cast<ULONG_PTR>(buffer)); |
120 | 120 |
121 const size_t kPageSize = 4096; | 121 const size_t kPageSize = 4096; |
122 return sandbox::PatchNtdll(child, thunk, kPageSize); | 122 return sandbox::PatchNtdll(child, thunk, kPageSize); |
123 } | 123 } |
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