86 lines
3.0 KiB
C#
86 lines
3.0 KiB
C#
/*
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Copyright (C) 2011-2015 de4dot@gmail.com
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This file is part of de4dot.
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de4dot is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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de4dot is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with de4dot. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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namespace de4dot.code.deobfuscators.Agile_NET.vm.v2 {
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static class OpCodeHandlerInfos {
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public static void Write(BinaryWriter writer, List<MethodSigInfo> handlerInfos) {
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writer.Write(1);
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writer.Write(handlerInfos.Count);
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foreach (var handler in handlerInfos) {
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writer.Write((int)handler.TypeCode);
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writer.Write(handler.BlockSigInfos.Count);
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foreach (var info in handler.BlockSigInfos) {
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writer.Write(info.Targets.Count);
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foreach (var target in info.Targets)
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writer.Write(target);
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writer.Write(info.Hashes.Count);
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foreach (var hash in info.Hashes)
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writer.Write((uint)hash);
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writer.Write(info.HasFallThrough);
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writer.Write(info.EndsInRet);
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}
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}
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}
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public static List<MethodSigInfo> Read(BinaryReader reader) {
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if (reader.ReadInt32() != 1)
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throw new InvalidDataException();
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int numHandlers = reader.ReadInt32();
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var list = new List<MethodSigInfo>(numHandlers);
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for (int i = 0; i < numHandlers; i++) {
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var typeCode = (HandlerTypeCode)reader.ReadInt32();
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int numBlocks = reader.ReadInt32();
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var blocks = new List<BlockSigInfo>(numBlocks);
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for (int j = 0; j < numBlocks; j++) {
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int numTargets = reader.ReadInt32();
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var targets = new List<int>(numTargets);
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for (int k = 0; k < numTargets; k++)
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targets.Add(reader.ReadInt32());
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var numHashes = reader.ReadInt32();
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var hashes = new List<BlockElementHash>(numHashes);
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for (int k = 0; k < numHashes; k++)
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hashes.Add((BlockElementHash)reader.ReadInt32());
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var block = new BlockSigInfo(hashes, targets);
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block.HasFallThrough = reader.ReadBoolean();
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block.EndsInRet = reader.ReadBoolean();
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blocks.Add(block);
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}
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list.Add(new MethodSigInfo(blocks, typeCode));
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}
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return list;
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}
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public static readonly IList<MethodSigInfo>[] HandlerInfos = new IList<MethodSigInfo>[] {
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ReadOpCodeHandlerInfos(CsvmResources.CSVM1),
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ReadOpCodeHandlerInfos(CsvmResources.CSVM2),
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ReadOpCodeHandlerInfos(CsvmResources.CSVM3),
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ReadOpCodeHandlerInfos(CsvmResources.CSVM4),
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ReadOpCodeHandlerInfos(CsvmResources.CSVM5),
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};
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static IList<MethodSigInfo> ReadOpCodeHandlerInfos(byte[] data) {
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return OpCodeHandlerInfos.Read(new BinaryReader(new MemoryStream(data)));
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}
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}
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}
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