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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
#include "rtti.h"
using namespace BinaryNinja;
using namespace BinaryNinja::RTTI;
std::optional<std::string> RTTI::DemangleNameMS(BinaryView* view, bool allowMangled, const std::string &mangledName)
{
QualifiedName demangledName = {};
Ref<Type> outType = {};
if (!DemangleMS(view->GetDefaultArchitecture(), mangledName, outType, demangledName, true))
return DemangleNameLLVM(allowMangled, mangledName);
return demangledName.GetString();
}
std::string RemoveItaniumPrefix(const std::string& name) {
// Remove class prefixes.
// 1 and 7 is class_type
// 9 is si_class_type
// 1..4 is vmi_class_type
if (name.rfind('1', 0) == 0)
return name.substr(1);
if (name.rfind('7', 0) == 0)
return name.substr(1);
if (name.rfind('9', 0) == 0)
return name.substr(1);
if (name.rfind("4", 0) == 0)
return name.substr(2);
return name;
}
std::optional<std::string> RTTI::DemangleNameItanium(BinaryView* view, bool allowMangled, const std::string &mangledName)
{
if (auto demangledName = DemangleNameLLVM(allowMangled, mangledName))
return RemoveItaniumPrefix(demangledName.value());
return std::nullopt;
}
std::optional<std::string> RTTI::DemangleNameLLVM(bool allowMangled, const std::string &mangledName)
{
QualifiedName demangledName = {};
Ref<Type> outType = {};
if (!DemangleLLVM(mangledName, demangledName, true))
return allowMangled ? std::optional(mangledName) : std::nullopt;
auto demangledNameStr = demangledName.GetString();
size_t beginFind = demangledNameStr.find_first_of(' ');
if (beginFind != std::string::npos)
demangledNameStr.erase(0, beginFind + 1);
size_t endFind = demangledNameStr.find(" `RTTI Type Descriptor Name'");
if (endFind != std::string::npos)
demangledNameStr.erase(endFind, demangledNameStr.length());
return demangledNameStr;
}
Ref<Metadata> ClassInfo::SerializedMetadata()
{
std::map<std::string, Ref<Metadata> > classInfoMeta;
classInfoMeta["processor"] = new Metadata(static_cast<uint64_t>(processor));
classInfoMeta["className"] = new Metadata(className);
if (baseClassName.has_value())
classInfoMeta["baseClassName"] = new Metadata(baseClassName.value());
if (classOffset.has_value())
classInfoMeta["classOffset"] = new Metadata(classOffset.value());
if (vft.has_value())
classInfoMeta["vft"] = vft->SerializedMetadata();
// NOTE: We omit baseVft as it can be resolved manually and just bloats the size.
return new Metadata(classInfoMeta);
}
ClassInfo ClassInfo::DeserializedMetadata(const Ref<Metadata> &metadata)
{
std::map<std::string, Ref<Metadata> > classInfoMeta = metadata->GetKeyValueStore();
std::string className = classInfoMeta["className"]->GetString();
RTTIProcessorType processor = static_cast<RTTIProcessorType>(classInfoMeta["processor"]->GetUnsignedInteger());
ClassInfo info = {processor, className};
if (classInfoMeta.find("baseClassName") != classInfoMeta.end())
info.baseClassName = classInfoMeta["baseClassName"]->GetString();
if (classInfoMeta.find("classOffset") != classInfoMeta.end())
info.classOffset = classInfoMeta["classOffset"]->GetUnsignedInteger();
if (classInfoMeta.find("vft") != classInfoMeta.end())
info.vft = VirtualFunctionTableInfo::DeserializedMetadata(classInfoMeta["vft"]);
return info;
}
Ref<Metadata> VirtualFunctionTableInfo::SerializedMetadata()
{
std::vector<Ref<Metadata> > funcsMeta;
funcsMeta.reserve(virtualFunctions.size());
for (auto &vFunc: virtualFunctions)
funcsMeta.emplace_back(vFunc.SerializedMetadata());
std::map<std::string, Ref<Metadata> > vftMeta;
vftMeta["address"] = new Metadata(address);
vftMeta["functions"] = new Metadata(funcsMeta);
return new Metadata(vftMeta);
}
VirtualFunctionTableInfo VirtualFunctionTableInfo::DeserializedMetadata(const Ref<Metadata> &metadata)
{
std::map<std::string, Ref<Metadata> > vftMeta = metadata->GetKeyValueStore();
VirtualFunctionTableInfo vftInfo = {vftMeta["address"]->GetUnsignedInteger()};
if (vftMeta.find("functions") != vftMeta.end())
{
for (auto &entry: vftMeta["functions"]->GetArray())
vftInfo.virtualFunctions.emplace_back(VirtualFunctionInfo::DeserializedMetadata(entry));
}
return vftInfo;
}
Ref<Metadata> VirtualFunctionInfo::SerializedMetadata()
{
std::map<std::string, Ref<Metadata> > vFuncMeta;
vFuncMeta["address"] = new Metadata(funcAddr);
return new Metadata(vFuncMeta);
}
VirtualFunctionInfo VirtualFunctionInfo::DeserializedMetadata(const Ref<Metadata> &metadata)
{
std::map<std::string, Ref<Metadata> > vFuncMeta = metadata->GetKeyValueStore();
VirtualFunctionInfo vFuncInfo = {vFuncMeta["address"]->GetUnsignedInteger()};
return vFuncInfo;
}
Ref<Metadata> RTTIProcessor::SerializedMetadata()
{
std::map<std::string, Ref<Metadata> > classesMeta;
for (auto &[objectAddr, classInfo]: m_classInfo)
{
auto addrStr = std::to_string(objectAddr);
classesMeta[addrStr] = classInfo.SerializedMetadata();
}
for (auto &[objectAddr, classInfo]: m_unhandledClassInfo)
{
auto addrStr = std::to_string(objectAddr);
// Unhandled class info will be discarded if handled class info exists for the same address.
if (classesMeta.find(addrStr) == classesMeta.end())
classesMeta[addrStr] = classInfo.SerializedMetadata();
}
std::map<std::string, Ref<Metadata> > itaniumMeta;
itaniumMeta["classes"] = new Metadata(classesMeta);
return new Metadata(itaniumMeta);
}
void RTTIProcessor::DeserializedMetadata(RTTIProcessorType type, const Ref<Metadata> &metadata)
{
std::map<std::string, Ref<Metadata> > msvcMeta = metadata->GetKeyValueStore();
if (msvcMeta.find("classes") != msvcMeta.end())
{
for (auto &[objectAddrStr, classInfoMeta]: msvcMeta["classes"]->GetKeyValueStore())
{
uint64_t objectAddr = std::stoull(objectAddrStr);
auto classInfo = ClassInfo::DeserializedMetadata(classInfoMeta);
if (classInfo.processor == type)
m_classInfo[objectAddr] = classInfo;
else
m_unhandledClassInfo[objectAddr] = classInfo;
}
}
}
|
