1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
// Copyright 2013 Google Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Declares internal implementation details for functionality in omap.h and
// omap.cc.
#ifndef COMMON_WINDOWS_OMAP_INTERNAL_H_
#define COMMON_WINDOWS_OMAP_INTERNAL_H_
#include <windows.h>
#include <dia2.h>
#include <map>
#include <vector>
namespace google_breakpad {
// The OMAP struct is defined by debughlp.h, which doesn't play nicely with
// imagehlp.h. We simply redefine it.
struct OMAP {
DWORD rva;
DWORD rvaTo;
};
static_assert(sizeof(OMAP) == 8, "Wrong size for OMAP structure.");
typedef std::vector<OMAP> OmapTable;
// This contains the OMAP data extracted from an image.
struct OmapData {
// The table of OMAP entries describing the transformation from the
// original image to the transformed image.
OmapTable omap_from;
// The table of OMAP entries describing the transformation from the
// instrumented image to the original image.
OmapTable omap_to;
// The length of the original untransformed image.
DWORD length_original;
OmapData() : length_original(0) { }
};
// This represents a range of addresses in an image.
struct AddressRange {
DWORD rva;
DWORD length;
AddressRange() : rva(0), length(0) { }
AddressRange(DWORD rva, DWORD length) : rva(rva), length(length) { }
// Returns the end address of this range.
DWORD end() const { return rva + length; }
// Addreses only compare as less-than or greater-than if they are not
// overlapping. Otherwise, they compare equal.
int Compare(const AddressRange& rhs) const;
bool operator<(const AddressRange& rhs) const { return Compare(rhs) == -1; }
bool operator>(const AddressRange& rhs) const { return Compare(rhs) == 1; }
// Equality operators compare exact values.
bool operator==(const AddressRange& rhs) const {
return rva == rhs.rva && length == rhs.length;
}
bool operator!=(const AddressRange& rhs) const { return !((*this) == rhs); }
};
typedef std::vector<AddressRange> AddressRangeVector;
// This represents an address range in an original image, and its corresponding
// range in the transformed image.
struct MappedRange {
// An address in the original image.
DWORD rva_original;
// The corresponding addresses in the transformed image.
DWORD rva_transformed;
// The length of the address range.
DWORD length;
// It is possible for code to be injected into a transformed image, for which
// there is no corresponding code in the original image. If this range of
// transformed image is immediately followed by such injected code we maintain
// a record of its length here.
DWORD injected;
// It is possible for code to be removed from the original image. This happens
// for things like padding between blocks. There is no actual content lost,
// but the spacing between items may be lost. This keeps track of any removed
// content immediately following the |original| range.
DWORD removed;
};
// A vector of mapped ranges is used as a more useful representation of
// OMAP data.
typedef std::vector<MappedRange> Mapping;
// Used as a secondary search structure accompanying a Mapping.
struct EndpointIndex {
DWORD endpoint;
size_t index;
};
typedef std::vector<EndpointIndex> EndpointIndexMap;
// An ImageMap is vector of mapped ranges, plus a secondary index into it for
// doing interval searches. (An interval tree would also work, but is overkill
// because we don't need insertion and deletion.)
struct ImageMap {
// This is a description of the mapping between original and transformed
// image, sorted by addresses in the original image.
Mapping mapping;
// For all interval endpoints in |mapping| this stores the minimum index of
// an interval in |mapping| that contains the endpoint. Useful for doing
// interval intersection queries.
EndpointIndexMap endpoint_index_map;
std::map<DWORD, DWORD> subsequent_rva_block;
};
} // namespace google_breakpad
#endif // COMMON_WINDOWS_OMAP_INTERNAL_H_
|
Swift