Add original TrueCrypt 7.1a sources

src/Boot/Windows/BootConfig.cpp

@@ -0,0 +1,90 @@
+/*
+ Copyright (c) 2008-2012 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 "BootConfig.h"
+
+byte BootSectorFlags;
+
+byte BootLoaderDrive;
+byte BootDrive;
+bool BootDriveGeometryValid = false;
+bool PreventNormalSystemBoot = false;
+bool PreventBootMenu = false;
+char CustomUserMessage[TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH + 1];
+uint32 OuterVolumeBackupHeaderCrc;
+
+bool BootStarted = false;
+
+DriveGeometry BootDriveGeometry;
+
+CRYPTO_INFO *BootCryptoInfo;
+Partition EncryptedVirtualPartition;
+
+Partition ActivePartition;
+Partition PartitionFollowingActive;
+bool ExtraBootPartitionPresent = false;
+uint64 HiddenVolumeStartUnitNo;
+uint64 HiddenVolumeStartSector;
+
+#ifndef TC_WINDOWS_BOOT_RESCUE_DISK_MODE
+
+void ReadBootSectorUserConfiguration ()
+{
+	byte userConfig;
+
+	AcquireSectorBuffer();
+
+	if (ReadWriteMBR (false, BootLoaderDrive, true) != BiosResultSuccess)
+		goto ret;
+
+	userConfig = SectorBuffer[TC_BOOT_SECTOR_USER_CONFIG_OFFSET];
+
+#ifdef TC_WINDOWS_BOOT_AES
+	EnableHwEncryption (!(userConfig & TC_BOOT_USER_CFG_FLAG_DISABLE_HW_ENCRYPTION));
+#endif
+
+	PreventBootMenu = (userConfig & TC_BOOT_USER_CFG_FLAG_DISABLE_ESC);
+
+	memcpy (CustomUserMessage, SectorBuffer + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET, TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH);
+	CustomUserMessage[TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH] = 0;
+
+	if (userConfig & TC_BOOT_USER_CFG_FLAG_SILENT_MODE)
+	{
+		if (CustomUserMessage[0])
+		{
+			InitVideoMode();
+			Print (CustomUserMessage);
+		}
+
+		DisableScreenOutput();
+	}
+
+	OuterVolumeBackupHeaderCrc = *(uint32 *) (SectorBuffer + TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET);
+
+ret:
+	ReleaseSectorBuffer();
+}
+
+
+BiosResult UpdateBootSectorConfiguration (byte drive)
+{
+	AcquireSectorBuffer();
+
+	BiosResult result = ReadWriteMBR (false, drive);
+	if (result != BiosResultSuccess)
+		goto ret;
+
+	SectorBuffer[TC_BOOT_SECTOR_CONFIG_OFFSET] = BootSectorFlags;
+	result = ReadWriteMBR (true, drive);
+
+ret:
+	ReleaseSectorBuffer();
+	return result;
+}
+
+#endif // !TC_WINDOWS_BOOT_RESCUE_DISK_MODE