69 lines
2.9 KiB
C#
69 lines
2.9 KiB
C#
/*
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Copyright 2017 Perfare - https://github.com/Perfare/Il2CppDumper
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Copyright 2017 Katy Coe - http://www.hearthcode.org - http://www.djkaty.com
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All rights reserved.
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*/
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namespace Il2CppInspector
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{
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public abstract class Il2CppReader
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{
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public IFileFormatReader Image { get; }
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protected Il2CppReader(IFileFormatReader stream) {
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Image = stream;
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}
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protected Il2CppReader(IFileFormatReader stream, uint codeRegistration, uint metadataRegistration) {
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Image = stream;
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Configure(codeRegistration, metadataRegistration);
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}
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public Il2CppCodeRegistration PtrCodeRegistration { get; protected set; }
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public Il2CppMetadataRegistration PtrMetadataRegistration { get; protected set; }
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// Architecture-specific search function
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protected abstract (uint, uint) Search(uint loc, uint globalOffset);
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// Check all search locations
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public bool Load() {
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var addrs = Image.GetSearchLocations();
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foreach (var loc in addrs)
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if (loc != 0) {
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var (code, metadata) = Search(loc, Image.GlobalOffset);
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if (code != 0) {
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Configure(code, metadata);
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return true;
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}
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}
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return false;
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}
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private void Configure(uint codeRegistration, uint metadataRegistration) {
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PtrCodeRegistration = Image.ReadMappedObject<Il2CppCodeRegistration>(codeRegistration);
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PtrMetadataRegistration = Image.ReadMappedObject<Il2CppMetadataRegistration>(metadataRegistration);
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PtrCodeRegistration.methodPointers = Image.ReadMappedArray<uint>(PtrCodeRegistration.pmethodPointers,
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(int) PtrCodeRegistration.methodPointersCount);
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PtrMetadataRegistration.fieldOffsets = Image.ReadMappedArray<int>(PtrMetadataRegistration.pfieldOffsets,
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PtrMetadataRegistration.fieldOffsetsCount);
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var types = Image.ReadMappedArray<uint>(PtrMetadataRegistration.ptypes, PtrMetadataRegistration.typesCount);
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PtrMetadataRegistration.types = new Il2CppType[PtrMetadataRegistration.typesCount];
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for (int i = 0; i < PtrMetadataRegistration.typesCount; ++i) {
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PtrMetadataRegistration.types[i] = Image.ReadMappedObject<Il2CppType>(types[i]);
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PtrMetadataRegistration.types[i].Init();
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}
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}
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public Il2CppType GetTypeFromTypeIndex(int idx) {
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return PtrMetadataRegistration.types[idx];
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}
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public int GetFieldOffsetFromIndex(int typeIndex, int fieldIndexInType) {
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var ptr = PtrMetadataRegistration.fieldOffsets[typeIndex];
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Image.Stream.Position = Image.MapVATR((uint) ptr) + 4 * fieldIndexInType;
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return Image.Stream.ReadInt32();
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}
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}
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}
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