80 lines
2.7 KiB
C#
80 lines
2.7 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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using dnlib.DotNet;
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using AssemblyData;
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using de4dot.code.AssemblyClient;
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namespace de4dot.code.deobfuscators.ILProtector {
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// Calls class to dynamically decrypt methods, then restores them.
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class DynamicMethodsRestorer : MethodsDecrypterBase {
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public DynamicMethodsRestorer(ModuleDefMD module, MainType mainType)
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: base(module, mainType) {
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}
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protected override void DecryptInternal() {
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CheckRuntimeFiles();
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IList<DecryptedMethodInfo> decryptedData;
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var serverVersion = NewProcessAssemblyClientFactory.GetServerClrVersion(module);
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using (var client = new NewProcessAssemblyClientFactory(serverVersion).Create(AssemblyServiceType.Generic)) {
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client.Connect();
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client.WaitConnected();
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client.GenericService.LoadUserService(typeof(DynamicMethodsDecrypterService), null);
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client.GenericService.LoadAssembly(module.Location);
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decryptedData = client.GenericService.SendMessage(DynamicMethodsDecrypterService.MSG_DECRYPT_METHODS, new object[] { GetMethodIds() }) as IList<DecryptedMethodInfo>;
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MethodReaderHasDelegateTypeFlag = (bool)client.GenericService.SendMessage(DynamicMethodsDecrypterService.MSG_HAS_DELEGATE_TYPE_FLAG, new object[0]);
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}
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if (decryptedData == null)
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throw new ApplicationException("Unknown return value from dynamic methods decrypter service");
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foreach (var info in decryptedData)
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methodInfos[info.id] = info;
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}
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void CheckRuntimeFiles() {
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foreach (var info in mainType.RuntimeFileInfos) {
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if (!File.Exists(info.PathName))
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Logger.w(string.Format("ILProtector runtime file '{0}' is missing.", info.PathName));
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}
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}
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IList<int> GetMethodIds() {
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var ids = new List<int>();
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foreach (var type in module.GetTypes()) {
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foreach (var method in type.Methods) {
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int? id = GetMethodId(method);
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if (id == null)
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continue;
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ids.Add(id.Value);
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ids.Add((int)method.Rid);
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}
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}
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return ids;
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}
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}
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}
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