[SharedCache] Refactor Shared Cache

In absence of a better name, this commit refactors the shared cache code.

1 files changed, 42 insertions, 23 deletions

diff --git a/view/sharedcache/core/ObjC.h b/view/sharedcache/core/ObjC.h
index 13790364..6576564b 100644
--- a/view/sharedcache/core/ObjC.h
+++ b/view/sharedcache/core/ObjC.h
@@ -1,52 +1,71 @@
-//
-// Created by kat on 5/23/23.
-//
-
-#ifndef SHAREDCACHE_OBJC_H
-#define SHAREDCACHE_OBJC_H
+#pragma once
 
 #include <binaryninjaapi.h>
 #include <objectivec/objc.h>
 #include "SharedCache.h"
 
+struct ObjCOptimizationHeader
+{
+	uint32_t version;
+	uint32_t flags;
+	uint64_t headerInfoROCacheOffset;
+	uint64_t headerInfoRWCacheOffset;
+	uint64_t selectorHashTableCacheOffset;
+	uint64_t classHashTableCacheOffset;
+	uint64_t protocolHashTableCacheOffset;
+	uint64_t relativeMethodSelectorBaseAddressOffset;
+};
+
 namespace DSCObjC {
-	class DSCObjCReader : public ObjCReader {
-	private:
-		VMReader m_reader;
-		size_t m_addressSize;
+	class SharedCacheObjCReader : public BinaryNinja::ObjCReader
+	{
+		VirtualMemoryReader m_reader;
 
 	public:
 		void Read(void* dest, size_t len) override;
-		std::string ReadCString() override;
+
+		std::string ReadCString(size_t maxLength = -1) override;
+
 		uint8_t Read8() override;
+
 		uint16_t Read16() override;
+
 		uint32_t Read32() override;
+
 		uint64_t Read64() override;
+
 		int8_t ReadS8() override;
+
 		int16_t ReadS16() override;
+
 		int32_t ReadS32() override;
+
 		int64_t ReadS64() override;
+
 		uint64_t ReadPointer() override;
+
 		uint64_t GetOffset() const override;
+
 		void Seek(uint64_t offset) override;
+
 		void SeekRelative(int64_t offset) override;
 
-		VMReader& GetVMReader();
+		VirtualMemoryReader& GetVMReader();
 
-		DSCObjCReader(SharedCacheCore::SharedCache* cache, size_t addressSize);
+		SharedCacheObjCReader(VirtualMemoryReader reader);
 	};
 
-	class DSCObjCProcessor : public ObjCProcessor {
+	class SharedCacheObjCProcessor : public BinaryNinja::ObjCProcessor
+	{
 		std::optional<uint64_t> m_customRelativeMethodSelectorBase = std::nullopt;
-		SharedCacheCore::SharedCache* m_cache;
 
-		std::shared_ptr<ObjCReader> GetReader() override;
-		void GetRelativeMethod(ObjCReader* reader, method_t& meth) override;
-	
+		std::shared_ptr<BinaryNinja::ObjCReader> GetReader() override;
+
+		void GetRelativeMethod(BinaryNinja::ObjCReader* reader, BinaryNinja::method_t& meth) override;
+
 	public:
-		DSCObjCProcessor(BinaryView* data, SharedCacheCore::SharedCache* cache, bool isBackedByDatabase);
-		
-		uint64_t GetObjCRelativeMethodBaseAddress(ObjCReader* reader) override;
+		SharedCacheObjCProcessor(BinaryNinja::BinaryView* data, bool isBackedByDatabase);
+
+		uint64_t GetObjCRelativeMethodBaseAddress(BinaryNinja::ObjCReader* reader) override;
 	};
-}
-#endif //SHAREDCACHE_OBJC_H
+}  // namespace DSCObjC