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
|
#pragma once
#include "binaryninjaapi.h"
constexpr const char *VIEW_METADATA_RTTI = "rtti";
constexpr int RTTI_CONFIDENCE = 100;
namespace BinaryNinja::RTTI {
Ref<Symbol> GetRealSymbol(BinaryView *view, uint64_t relocAddr, uint64_t symAddr);
std::optional<std::string> DemangleNameMS(BinaryView* view, bool allowMangled, const std::string &mangledName);
std::optional<std::string> DemangleNameGNU3(BinaryView* view, bool allowMangled, const std::string &mangledName);
std::optional<std::string> DemangleNameItanium(BinaryView* view, bool allowMangled, const std::string &mangledName);
std::optional<std::string> DemangleNameLLVM(bool allowMangled, const std::string &mangledName);
struct VirtualFunctionInfo
{
uint64_t funcAddr;
Ref<Metadata> SerializedMetadata() const;
static VirtualFunctionInfo DeserializedMetadata(const Ref<Metadata> &metadata);
};
struct VirtualFunctionTableInfo
{
uint64_t address;
std::vector<VirtualFunctionInfo> virtualFunctions;
Ref<Metadata> SerializedMetadata(bool serializeFunctions = true) const;
static VirtualFunctionTableInfo DeserializedMetadata(const Ref<Metadata> &metadata);
};
enum class RTTIProcessorType
{
Microsoft = 0,
Itanium = 1,
};
struct BaseClassInfo
{
std::string className;
// TODO: This has to be optional, as we might need to resolve this at a later stage.
// TODO: The offset also might literally not exist.
uint64_t offset;
std::optional<VirtualFunctionTableInfo> vft;
Ref<Metadata> SerializedMetadata() const;
static BaseClassInfo DeserializedMetadata(const Ref<Metadata> &metadata);
};
// TODO: This needs to have some flags. Virtual, pure iirc.
struct ClassInfo
{
RTTIProcessorType processor;
std::string className;
std::optional<VirtualFunctionTableInfo> vft;
std::vector<BaseClassInfo> baseClasses;
Ref<Metadata> SerializedMetadata() const;
static ClassInfo DeserializedMetadata(const Ref<Metadata> &metadata);
};
class RTTIProcessor
{
protected:
enum class FunctionDiscoverState
{
Failed = 0,
AlreadyExists = 1,
Discovered = 2,
Extern = 3
};
Ref<BinaryView> m_view;
Ref<Logger> m_logger;
std::map<uint64_t, ClassInfo> m_classInfo;
std::map<uint64_t, ClassInfo> m_unhandledClassInfo;
virtual std::optional<ClassInfo> ProcessRTTI(uint64_t objectAddr) = 0;
virtual std::optional<VirtualFunctionTableInfo> ProcessVFT(uint64_t vftAddr, ClassInfo &classInfo, std::optional<BaseClassInfo> baseClassInfo) = 0;
[[nodiscard]] bool IsLikelyFunction(uint64_t addr) const;
[[nodiscard]] FunctionDiscoverState DiscoverVirtualFunction(uint64_t vftEntryAddr, uint64_t& vFuncAddr);
public:
virtual ~RTTIProcessor() = default;
void DeserializedMetadata(RTTIProcessorType type, const Ref<Metadata> &metadata);
Ref<Metadata> SerializedMetadata();
virtual void ProcessRTTI() = 0;
virtual void ProcessVFT() = 0;
};
}
|
