| OLD | NEW |
| (Empty) |
| 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_ | |
| OLD | NEW |