public unsafe bool Patch(ModuleDef module, out RawModuleBytes newModuleData) { var moduleData = this.moduleData; // NOTE: We can't remove the type from the corlib (eg. mscorlib) because the compiler // (Roslyn) won't recognize it as the corlib if it has any AssemblyRefs. // A possible fix is to add a new netmodule to the corlib assembly. bool fixTypeDefRefs = !(nonNestedEditedType is null) && MDPatcherUtils.ExistsInMetadata(nonNestedEditedType) && MDPatcherUtils.ReferencesModule(module, nonNestedEditedType?.Module) && !module.Assembly.IsCorLib(); bool addIVT = module == editedModule || MDPatcherUtils.HasModuleInternalAccess(module, editedModule); if (fixTypeDefRefs || addIVT) { DnSpyEventSource.Log.EditCodePatchModuleStart(module.Location); using (var md = MDPatcherUtils.TryCreateMetadata(moduleData, isFileLayout)) { if (md is null) { throw new InvalidOperationException("Couldn't create metadata"); } var mdEditor = new MetadataEditor(moduleData, md); var options = MDEditorPatcherOptions.None; if (fixTypeDefRefs) { options |= MDEditorPatcherOptions.UpdateTypeReferences; } if (addIVT) { options |= MDEditorPatcherOptions.AllowInternalAccess; } var patcher = new MDEditorPatcher(moduleData, mdEditor, tempAssembly, nonNestedEditedType, options); patcher.Patch(module); if (mdEditor.MustRewriteMetadata()) { var stream = new MDWriterMemoryStream(); new MDWriter(moduleData, mdEditor, stream).Write(); NativeMemoryRawModuleBytes?newRawData = null; try { newRawData = new NativeMemoryRawModuleBytes((int)stream.Length, isFileLayout: true); stream.CopyTo((IntPtr)newRawData.Pointer, newRawData.Size); moduleData = newRawData; } catch { newRawData?.Dispose(); throw; } } } DnSpyEventSource.Log.EditCodePatchModuleStop(module.Location); } newModuleData = moduleData; return(true); }
public unsafe bool Patch(ModuleDef module, out RawModuleBytes newModuleData) { var moduleData = this.moduleData; // NOTE: We can't remove the type from the corlib (eg. mscorlib) because the compiler // (Roslyn) won't recognize it as the corlib if it has any AssemblyRefs. // A possible fix is to add a new netmodule to the corlib assembly. bool fixTypeDefRefs = nonNestedEditedTypeOrNull != null && MDPatcherUtils.ExistsInMetadata(nonNestedEditedTypeOrNull) && MDPatcherUtils.ReferencesModule(module, nonNestedEditedTypeOrNull?.Module) && !module.Assembly.IsCorLib(); if (makeEverythingPublic || fixTypeDefRefs) { using (var md = MDPatcherUtils.TryCreateMetadata(moduleData, isFileLayout)) { if (makeEverythingPublic) { new MetadataFixer(moduleData, md).MakePublic(); } if (fixTypeDefRefs) { var mdEditor = new MetadataEditor(moduleData, md); var patcher = new MDEditorPatcher(moduleData, mdEditor, tempAssembly, nonNestedEditedTypeOrNull); patcher.Patch(module); if (mdEditor.MustRewriteMetadata()) { var stream = new MDWriterMemoryStream(); new MDWriter(moduleData, mdEditor, stream).Write(); NativeMemoryRawModuleBytes newRawData = null; try { newRawData = new NativeMemoryRawModuleBytes((int)stream.Length); stream.CopyTo((IntPtr)newRawData.Pointer, newRawData.Size); moduleData = newRawData; } catch { newRawData?.Dispose(); throw; } } } } } newModuleData = moduleData; return(true); }
public bool Patch(ModuleDef module, out byte[] newModuleData) { var moduleData = this.moduleData; // NOTE: We can't remove the type from the corlib (eg. mscorlib) because the compiler // (Roslyn) won't recognize it as the corlib if it has any AssemblyRefs. // A possible fix is to add a new netmodule to the corlib assembly. bool fixTypeDefRefs = nonNestedEditedTypeOrNull != null && MDPatcherUtils.ExistsInMetadata(nonNestedEditedTypeOrNull) && MDPatcherUtils.ReferencesModule(module, nonNestedEditedTypeOrNull?.Module) && !module.Assembly.IsCorLib(); if (makeEverythingPublic || fixTypeDefRefs) { using (var md = MDPatcherUtils.TryCreateMetadata(moduleData)) { if (makeEverythingPublic) { bool success = new MetadataFixer(moduleData, md).MakePublic(); if (!success) { newModuleData = null; return(false); } } if (fixTypeDefRefs) { var mdEditor = new MetadataEditor(moduleData, md); var patcher = new MDEditorPatcher(moduleData, mdEditor, tempAssembly, nonNestedEditedTypeOrNull); patcher.Patch(module); if (mdEditor.MustRewriteMetadata()) { var stream = new MDWriterMemoryStream(); new MDWriter(moduleData, mdEditor, stream).Write(); moduleData = stream.ToArray(); } } } } newModuleData = moduleData; return(true); }