Itanium RTTI scaffolding

1 files changed, 88 insertions, 0 deletions

diff --git a/plugins/rtti/microsoft.h b/plugins/rtti/microsoft.h
new file mode 100644
index 00000000..b67431ec
--- /dev/null
+++ b/plugins/rtti/microsoft.h
@@ -0,0 +1,88 @@
+#pragma once
+
+#include "binaryninjaapi.h"
+#include "rtti.h"
+
+namespace BinaryNinja::RTTI::Microsoft {
+	struct BaseClassArray
+	{
+		uint32_t length;
+		std::vector<uint64_t> descriptors;
+
+		BaseClassArray(BinaryView *view, uint64_t address, uint32_t length);
+	};
+
+	struct ClassHierarchyDescriptor
+	{
+		uint32_t signature;
+		uint32_t attributes;
+		uint32_t numBaseClasses;
+		int32_t pBaseClassArray;
+
+		ClassHierarchyDescriptor(BinaryView *view, uint64_t address);
+	};
+
+	struct BaseClassDescriptor
+	{
+		int32_t pTypeDescriptor;
+		uint32_t numContainedBases;
+		int32_t where_mdisp;
+		int32_t where_pdisp;
+		int32_t where_vdisp;
+		uint32_t attributes;
+		int32_t pClassHierarchyDescriptor;
+
+		BaseClassDescriptor(BinaryView *view, uint64_t address);
+	};
+
+	struct TypeDescriptor
+	{
+		uint64_t pVFTable;
+		uint64_t spare;
+		std::string name;
+
+		TypeDescriptor(BinaryView *view, uint64_t address);
+	};
+
+	struct CompleteObjectLocator
+	{
+		uint32_t signature;
+		uint32_t offset;
+		uint32_t cdOffset;
+		int32_t pTypeDescriptor;
+		int32_t pClassHierarchyDescriptor;
+		// Only on 64 bit
+		int32_t pSelf;
+
+		CompleteObjectLocator(BinaryView *view, uint64_t address);
+	};
+
+	class MicrosoftRTTIProcessor
+	{
+		Ref<BinaryView> m_view;
+		Ref<Logger> m_logger;
+		bool allowMangledClassNames;
+		bool allowAnonymousClassNames;
+		bool checkWritableRData;
+		bool virtualFunctionTableSweep;
+
+		std::map<uint64_t, ClassInfo> m_classInfo;
+
+		std::set<uint64_t> m_visitedClassHierarchyDescAddrs;
+
+		void DeserializedMetadata(const Ref<Metadata> &metadata);
+
+		std::optional<ClassInfo> ProcessRTTI(uint64_t coLocatorAddr);
+
+		std::optional<VirtualFunctionTableInfo> ProcessVFT(uint64_t vftAddr, const ClassInfo &classInfo);
+
+	public:
+		MicrosoftRTTIProcessor(const Ref<BinaryView> &view, bool useMangled = true, bool checkRData = true, bool vftSweep = true, bool allowAnonymous = true);
+
+		Ref<Metadata> SerializedMetadata();
+
+		void ProcessRTTI();
+
+		void ProcessVFT();
+	};
+}
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