From 3cb7fdea950dd2d0377f0d9ad8a88fcb7c48b842 Mon Sep 17 00:00:00 2001
From: Jedidiah Barber <contact@jedbarber.id.au>
Date: Wed, 14 Jul 2021 11:27:03 +1200
Subject: Initial mirror commit

---
 Common/BaseCom.cpp | 231 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 231 insertions(+)
 create mode 100644 Common/BaseCom.cpp

(limited to 'Common/BaseCom.cpp')

diff --git a/Common/BaseCom.cpp b/Common/BaseCom.cpp
new file mode 100644
index 0000000..767a475
--- /dev/null
+++ b/Common/BaseCom.cpp
@@ -0,0 +1,231 @@
+/*
+ Copyright (c) 2007-2010 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#include <atlcomcli.h>
+#include <atlconv.h>
+#include <comutil.h>
+#include <windows.h>
+#include "BaseCom.h"
+#include "BootEncryption.h"
+#include "Dlgcode.h"
+#include "Registry.h"
+
+using namespace TrueCrypt;
+
+HRESULT CreateElevatedComObject (HWND hwnd, REFGUID guid, REFIID iid, void **ppv)
+{
+    WCHAR monikerName[1024];
+    WCHAR clsid[1024];
+    BIND_OPTS3 bo;
+
+    StringFromGUID2 (guid, clsid, sizeof (clsid) / 2);
+	swprintf_s (monikerName, sizeof (monikerName) / 2, L"Elevation:Administrator!new:%s", clsid);
+
+    memset (&bo, 0, sizeof (bo));
+    bo.cbStruct = sizeof (bo);
+    bo.hwnd = hwnd;
+    bo.dwClassContext = CLSCTX_LOCAL_SERVER;
+
+	// Prevent the GUI from being half-rendered when the UAC prompt "freezes" it
+	ProcessPaintMessages (hwnd, 5000);
+
+    return CoGetObject (monikerName, &bo, iid, ppv);
+}
+
+
+BOOL ComGetInstanceBase (HWND hWnd, REFCLSID clsid, REFIID iid, void **tcServer)
+{
+	BOOL r;
+
+	if (IsUacSupported ())
+		r = CreateElevatedComObject (hWnd, clsid, iid, tcServer) == S_OK;
+	else
+		r = CoCreateInstance (clsid, NULL, CLSCTX_LOCAL_SERVER, iid, tcServer) == S_OK;
+
+	if (!r)
+		Error ("UAC_INIT_ERROR");
+
+	return r;
+}
+
+
+DWORD BaseCom::CallDriver (DWORD ioctl, BSTR input, BSTR *output)
+{
+	try
+	{
+		BootEncryption bootEnc (NULL);
+		bootEnc.CallDriver (ioctl,
+			(BYTE *) input, !(BYTE *) input ? 0 : ((DWORD *) ((BYTE *) input))[-1],
+			(BYTE *) *output, !(BYTE *) *output ? 0 : ((DWORD *) ((BYTE *) *output))[-1]);
+	}
+	catch (SystemException &)
+	{
+		return GetLastError();
+	}
+	catch (Exception &e)
+	{
+		e.Show (NULL);
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+	catch (...)
+	{
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+
+	return ERROR_SUCCESS;
+}
+
+
+DWORD BaseCom::CopyFile (BSTR sourceFile, BSTR destinationFile)
+{
+	USES_CONVERSION;
+
+	if (!::CopyFile (CW2A (sourceFile), CW2A (destinationFile), FALSE))
+		return GetLastError();
+
+	return ERROR_SUCCESS;
+}
+
+
+DWORD BaseCom::DeleteFile (BSTR file)
+{
+	USES_CONVERSION;
+
+	if (!::DeleteFile (CW2A (file)))
+		return GetLastError();
+
+	return ERROR_SUCCESS;
+}
+
+
+BOOL BaseCom::IsPagingFileActive (BOOL checkNonWindowsPartitionsOnly)
+{
+	return ::IsPagingFileActive (checkNonWindowsPartitionsOnly);
+}
+
+
+DWORD BaseCom::ReadWriteFile (BOOL write, BOOL device, BSTR filePath, BSTR *bufferBstr, unsigned __int64 offset, unsigned __int32 size, DWORD *sizeDone)
+{
+	USES_CONVERSION;
+
+	try
+	{
+		auto_ptr <File> file (device ? new Device (string (CW2A (filePath)), !write) : new File (string (CW2A (filePath)), !write));
+		file->SeekAt (offset);
+
+		if (write)
+		{
+			file->Write ((BYTE *) *bufferBstr, size);
+			*sizeDone = size;
+		}
+		else
+		{
+			*sizeDone = file->Read ((BYTE *) *bufferBstr, size);
+		}
+	}
+	catch (SystemException &)
+	{
+		return GetLastError();
+	}
+	catch (Exception &e)
+	{
+		e.Show (NULL);
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+	catch (...)
+	{
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+
+	return ERROR_SUCCESS;
+}
+
+
+DWORD BaseCom::RegisterFilterDriver (BOOL registerDriver, int filterType)
+{
+	try
+	{
+		BootEncryption bootEnc (NULL);
+		bootEnc.RegisterFilterDriver (registerDriver ? true : false, (BootEncryption::FilterType) filterType);
+	}
+	catch (SystemException &)
+	{
+		return GetLastError();
+	}
+	catch (Exception &e)
+	{
+		e.Show (NULL);
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+	catch (...)
+	{
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+
+	return ERROR_SUCCESS;
+}
+
+
+DWORD BaseCom::RegisterSystemFavoritesService (BOOL registerService)
+{
+	try
+	{
+		BootEncryption bootEnc (NULL);
+		bootEnc.RegisterSystemFavoritesService (registerService);
+	}
+	catch (SystemException &)
+	{
+		return GetLastError();
+	}
+	catch (Exception &e)
+	{
+		e.Show (NULL);
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+	catch (...)
+	{
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+
+	return ERROR_SUCCESS;
+}
+
+
+DWORD BaseCom::SetDriverServiceStartType (DWORD startType)
+{
+	try
+	{
+		BootEncryption bootEnc (NULL);
+		bootEnc.SetDriverServiceStartType (startType);
+	}
+	catch (SystemException &)
+	{
+		return GetLastError();
+	}
+	catch (Exception &e)
+	{
+		e.Show (NULL);
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+	catch (...)
+	{
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+
+	return ERROR_SUCCESS;
+}
+
+
+DWORD BaseCom::WriteLocalMachineRegistryDwordValue (BSTR keyPath, BSTR valueName, DWORD value)
+{
+	USES_CONVERSION;
+	if (!::WriteLocalMachineRegistryDword (CW2A (keyPath), CW2A (valueName), value))
+		return GetLastError();
+
+	return ERROR_SUCCESS;
+}
-- 
cgit