Separate project from Il2Cpp2Proto

2017-03-17 11:29:54 +01:00
parent 75fb3d6c67
commit 9ced0b6c56
21 changed files with 1588 additions and 1 deletions
--- a/Il2CppInspector/Il2CppReaderX86.cs
+++ b/Il2CppInspector/Il2CppReaderX86.cs
@@ -0,0 +1,58 @@
+/*
+    Copyright 2017 Katy Coe - http://www.hearthcode.org - http://www.djkaty.com
+
+    All rights reserved.
+*/
+
+using System.Linq;
+
+namespace Il2CppInspector
+{
+    internal class Il2CppReaderX86 : Il2CppReader
+    {
+        public Il2CppReaderX86(IFileFormatReader stream) : base(stream) { }
+        public Il2CppReaderX86(IFileFormatReader stream, uint codeRegistration, uint metadataRegistration) : base(stream, codeRegistration, metadataRegistration) { }
+        protected override (uint, uint) Search(uint loc, uint globalOffset) {
+            uint funcPtr, metadata, code;
+
+            // Variant 1
+
+            // Assembly bytes to search for at start of each function
+            var bytes = new byte[] { 0x6A, 0x00, 0x6A, 0x00, 0x68 };
+            Image.Position = loc;
+            var buff = Image.ReadBytes(5);
+            if (bytes.SequenceEqual(buff)) {
+                // Next 4 bytes are the function pointer being pushed onto the stack
+                funcPtr = Image.ReadUInt32();
+
+                // Start of next instruction
+                if (Image.ReadByte() != 0xB9)
+                    return (0, 0);
+
+                // Jump to Il2CppCodegenRegistration
+                Image.Position = Image.MapVATR(funcPtr) + 6;
+                metadata = Image.ReadUInt32();
+                Image.Position = Image.MapVATR(funcPtr) + 11;
+                code = Image.ReadUInt32();
+                return (code, metadata);
+            }
+
+            // Variant 2
+            bytes = new byte[] { 0x55, 0x89, 0xE5, 0x53, 0x83, 0xE4, 0xF0, 0x83, 0xEC, 0x20, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x5B };
+            Image.Position = loc;
+            buff = Image.ReadBytes(16);
+            if (!bytes.SequenceEqual(buff))
+                return (0, 0);
+
+            Image.Position += 8;
+            funcPtr = Image.MapVATR(Image.ReadUInt32() + globalOffset);
+            if (funcPtr > Image.Stream.BaseStream.Length)
+                return (0, 0);
+            Image.Position = funcPtr + 0x22;
+            metadata = Image.ReadUInt32() + globalOffset;
+            Image.Position = funcPtr + 0x2C;
+            code = Image.ReadUInt32() + globalOffset;
+            return (code, metadata);
+        }
+    }
+}