From 07ee8c10691d05e4e290ecdaa634ad5311b3cbb1 Mon Sep 17 00:00:00 2001
From: Mounir IDRASSI <mounir.idrassi@idrix.fr>
Date: Tue, 9 Aug 2016 23:26:15 +0200
Subject: Windows: Implement support for EFI system encryption in Windows GUI.

---
 src/Common/BaseCom.cpp | 217 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 216 insertions(+), 1 deletion(-)

(limited to 'src/Common/BaseCom.cpp')

diff --git a/src/Common/BaseCom.cpp b/src/Common/BaseCom.cpp
index 5905b6a8..26e2650a 100644
--- a/src/Common/BaseCom.cpp
+++ b/src/Common/BaseCom.cpp
@@ -3,7 +3,7 @@
  Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
  by the TrueCrypt License 3.0.
 
- Modifications and additions to the original source code (contained in this file)
+ Modifications and additions to the original source code (contained in this file) 
  and all other portions of this file are Copyright (c) 2013-2016 IDRIX
  and are governed by the Apache License 2.0 the full text of which is
  contained in the file License.txt included in VeraCrypt binary and source
@@ -161,6 +161,63 @@ DWORD BaseCom::ReadWriteFile (BOOL write, BOOL device, BSTR filePath, BSTR *buff
 	return ERROR_SUCCESS;
 }
 
+DWORD BaseCom::GetFileSize (BSTR filePath, unsigned __int64 *pSize)
+{
+	if (!pSize)
+		return ERROR_INVALID_PARAMETER;
+
+	try
+	{
+		std::wstring path (filePath);
+		File file(filePath, true);
+		file.CheckOpened (SRC_POS);
+		file.GetFileSize (*pSize);
+	}
+	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::DeviceIoControl (BOOL readOnly, BOOL device, BSTR filePath, DWORD dwIoControlCode, BSTR input, BSTR *output)
+{
+	try
+	{
+		auto_ptr <File> file (device ? new Device (filePath, readOnly == TRUE) : new File (filePath, readOnly == TRUE));
+		file->CheckOpened (SRC_POS);
+		if (!file->IoCtl (dwIoControlCode, (BYTE *) input, !(BYTE *) input ? 0 : ((DWORD *) ((BYTE *) input))[-1],
+			(BYTE *) *output, !(BYTE *) *output ? 0 : ((DWORD *) ((BYTE *) *output))[-1]))
+		{
+			return GetLastError();
+		}
+	}
+	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)
 {
@@ -244,3 +301,161 @@ DWORD BaseCom::WriteLocalMachineRegistryDwordValue (BSTR keyPath, BSTR valueName
 
 	return ERROR_SUCCESS;
 }
+DWORD BaseCom::InstallEfiBootLoader (BOOL preserveUserConfig, BOOL hiddenOSCreation, int pim, int hashAlg)
+{
+	try
+	{
+		BootEncryption bootEnc (NULL);
+		bootEnc.InstallBootLoader (preserveUserConfig? true : false, hiddenOSCreation? true : false, pim, hashAlg);
+	}
+	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::BackupEfiSystemLoader ()
+{
+	try
+	{
+		BootEncryption bootEnc (NULL);
+		bootEnc.BackupSystemLoader ();
+	}
+	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::RestoreEfiSystemLoader ()
+{
+	try
+	{
+		BootEncryption bootEnc (NULL);
+		bootEnc.RestoreSystemLoader ();
+	}
+	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::GetEfiBootDeviceNumber (BSTR* pSdn)
+{
+	if (!pSdn || !(*pSdn) || ((((DWORD *) ((BYTE *) *pSdn))[-1]) < sizeof (STORAGE_DEVICE_NUMBER)))
+		return ERROR_INVALID_PARAMETER;
+
+	try
+	{
+		BootEncryption bootEnc (NULL);
+		bootEnc.GetEfiBootDeviceNumber ((PSTORAGE_DEVICE_NUMBER) *pSdn);
+	}
+	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::ReadEfiConfig (BSTR* pContent, DWORD *pcbRead)
+{
+	if (!pContent || !(*pContent))
+		return ERROR_INVALID_PARAMETER;
+
+	try
+	{
+		DWORD maxSize = ((DWORD *) ((BYTE *) *pContent))[-1];
+		BootEncryption bootEnc (NULL);
+		bootEnc.ReadEfiConfig ((byte*) *pContent, maxSize, pcbRead);
+	}
+	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::WriteEfiBootSectorUserConfig (DWORD userConfig, BSTR customUserMessage, int pim, int hashAlg)
+{
+	if (!customUserMessage)
+		return ERROR_INVALID_PARAMETER;
+
+	try
+	{
+		DWORD maxSize = ((DWORD *) ((BYTE *) customUserMessage))[-1];
+		char* msg = (char*) *customUserMessage;
+		if (maxSize > 0)
+			msg [maxSize - 1] = 0;
+		std::string msgStr = maxSize > 0 ? msg : "";
+		BootEncryption bootEnc (NULL);
+		bootEnc.WriteEfiBootSectorUserConfig ((byte) userConfig,  msgStr, pim, hashAlg);
+	}
+	catch (SystemException &)
+	{
+		return GetLastError();
+	}
+	catch (Exception &e)
+	{
+		e.Show (NULL);
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+	catch (...)
+	{
+		return ERROR_EXCEPTION_IN_SERVICE;
+	}
+
+	return ERROR_SUCCESS;
+}
\ No newline at end of file
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