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Side by Side Diff: sandbox/win/src/interception_internal.h

Issue 1851213002: Remove sandbox on Windows. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix nacl compile issues Created 4 years, 8 months ago
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1 // Copyright (c) 2006-2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Defines InterceptionManager, the class in charge of setting up interceptions
6 // for the sandboxed process. For more details see:
7 // http://dev.chromium.org/developers/design-documents/sandbox .
8
9 #ifndef SANDBOX_SRC_INTERCEPTION_INTERNAL_H_
10 #define SANDBOX_SRC_INTERCEPTION_INTERNAL_H_
11
12 #include <stddef.h>
13
14 #include "sandbox/win/src/sandbox_types.h"
15
16 namespace sandbox {
17
18 const int kMaxThunkDataBytes = 64;
19
20 enum InterceptorId;
21
22 // The following structures contain variable size fields at the end, and will be
23 // used to transfer information between two processes. In order to guarantee
24 // our ability to follow the chain of structures, the alignment should be fixed,
25 // hence this pragma.
26 #pragma pack(push, 4)
27
28 // Structures for the shared memory that contains patching information
29 // for the InterceptionAgent.
30 // A single interception:
31 struct FunctionInfo {
32 size_t record_bytes; // rounded to sizeof(size_t) bytes
33 InterceptionType type;
34 InterceptorId id;
35 const void* interceptor_address;
36 char function[1]; // placeholder for null terminated name
37 // char interceptor[] // followed by the interceptor function
38 };
39
40 // A single dll:
41 struct DllPatchInfo {
42 size_t record_bytes; // rounded to sizeof(size_t) bytes
43 size_t offset_to_functions;
44 int num_functions;
45 bool unload_module;
46 wchar_t dll_name[1]; // placeholder for null terminated name
47 // FunctionInfo function_info[] // followed by the functions to intercept
48 };
49
50 // All interceptions:
51 struct SharedMemory {
52 int num_intercepted_dlls;
53 void* interceptor_base;
54 DllPatchInfo dll_list[1]; // placeholder for the list of dlls
55 };
56
57 // Dummy single thunk:
58 struct ThunkData {
59 char data[kMaxThunkDataBytes];
60 };
61
62 // In-memory representation of the interceptions for a given dll:
63 struct DllInterceptionData {
64 size_t data_bytes;
65 size_t used_bytes;
66 void* base;
67 int num_thunks;
68 #if defined(_WIN64)
69 int dummy; // Improve alignment.
70 #endif
71 ThunkData thunks[1];
72 };
73
74 #pragma pack(pop)
75
76 } // namespace sandbox
77
78 #endif // SANDBOX_SRC_INTERCEPTION_INTERNAL_H_
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