100 lines
3.9 KiB
C#
100 lines
3.9 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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using System;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using NoisyCowStudios.Bin2Object;
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namespace Il2CppInspector
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{
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public class Metadata : BinaryObjectReader
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{
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private Il2CppGlobalMetadataHeader pMetadataHdr;
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public Il2CppImageDefinition[] Images { get; }
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public Il2CppTypeDefinition[] Types { get; }
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public Il2CppMethodDefinition[] Methods { get; }
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public Il2CppParameterDefinition[] parameterDefs;
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public Il2CppFieldDefinition[] Fields { get; }
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public Il2CppFieldDefaultValue[] fieldDefaultValues;
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public string GetImageName(Il2CppImageDefinition image) => GetString(image.nameIndex);
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public string GetTypeNamespace(Il2CppTypeDefinition type) => GetString(type.namespaceIndex);
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public string GetTypeName(Il2CppTypeDefinition type) => GetString(type.nameIndex);
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public Metadata(Stream stream) : base(stream)
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{
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pMetadataHdr = ReadObject<Il2CppGlobalMetadataHeader>();
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if (pMetadataHdr.sanity != 0xFAB11BAF)
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{
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throw new Exception("ERROR: Metadata file supplied is not valid metadata file.");
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}
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if (pMetadataHdr.version != 21 && pMetadataHdr.version != 22)
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{
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throw new Exception($"ERROR: Metadata file supplied is not a supported version[{pMetadataHdr.version}].");
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}
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var uiImageCount = pMetadataHdr.imagesCount / MySizeOf(typeof(Il2CppImageDefinition));
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var uiNumTypes = pMetadataHdr.typeDefinitionsCount / MySizeOf(typeof(Il2CppTypeDefinition));
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Images = ReadArray<Il2CppImageDefinition>(pMetadataHdr.imagesOffset, uiImageCount);
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//GetTypeDefFromIndex
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Types = ReadArray<Il2CppTypeDefinition>(pMetadataHdr.typeDefinitionsOffset, uiNumTypes);
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//GetMethodDefinition
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Methods = ReadArray<Il2CppMethodDefinition>(pMetadataHdr.methodsOffset, pMetadataHdr.methodsCount / MySizeOf(typeof(Il2CppMethodDefinition)));
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//GetParameterFromIndex
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parameterDefs = ReadArray<Il2CppParameterDefinition>(pMetadataHdr.parametersOffset, pMetadataHdr.parametersCount / MySizeOf(typeof(Il2CppParameterDefinition)));
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//GetFieldDefFromIndex
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Fields = ReadArray<Il2CppFieldDefinition>(pMetadataHdr.fieldsOffset, pMetadataHdr.fieldsCount / MySizeOf(typeof(Il2CppFieldDefinition)));
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//GetFieldDefaultFromIndex
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fieldDefaultValues = ReadArray<Il2CppFieldDefaultValue>(pMetadataHdr.fieldDefaultValuesOffset, pMetadataHdr.fieldDefaultValuesCount / MySizeOf(typeof(Il2CppFieldDefaultValue)));
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}
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public Il2CppFieldDefaultValue GetFieldDefaultFromIndex(int idx)
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{
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return fieldDefaultValues.FirstOrDefault(x => x.fieldIndex == idx);
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}
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public int GetDefaultValueFromIndex(int idx)
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{
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return pMetadataHdr.fieldAndParameterDefaultValueDataOffset + idx;
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}
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public string GetString(int idx)
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{
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return ReadNullTerminatedString(pMetadataHdr.stringOffset + idx);
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}
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private int MySizeOf(Type type)
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{
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int size = 0;
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foreach (var i in type.GetTypeInfo().GetFields())
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{
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if (i.FieldType == typeof(int))
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{
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size += 4;
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}
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else if (i.FieldType == typeof(uint))
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{
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size += 4;
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}
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else if (i.FieldType == typeof(short))
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{
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size += 2;
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}
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else if (i.FieldType == typeof(ushort))
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{
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size += 2;
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}
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}
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return size;
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}
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}
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}
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