/*
 Derived from source code of TrueCrypt 7.1a, which is
 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)
 and all other portions of this file are Copyright (c) 2013-2017 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
 code distribution packages.
*/

#ifndef COMMON_H
#define COMMON_H

#include "Crypto.h"

#define MIN_MOUNTED_VOLUME_DRIVE_NUMBER ('A' - 'A')
#define MAX_MOUNTED_VOLUME_DRIVE_NUMBER ('Z' - 'A')

#define MAX_HOST_DRIVE_NUMBER 64
#define MAX_HOST_PARTITION_NUMBER 32

#define VOLUME_ID_SIZE	SHA256_DIGESTSIZE

#define ALIGN_VALUE(value, alignment) (((alignment) == 0)? (value) : (((value) + ((alignment) - 1)) & ~((alignment) - 1)))

typedef enum
{
	// IMPORTANT: If you add a new item here, update IsOSVersionAtLeast().

	WIN_UNKNOWN = 0,
	WIN_31,
	WIN_95,
	WIN_98,
	WIN_ME,
	WIN_NT3,
	WIN_NT4,
	WIN_2000,
	WIN_XP,
	WIN_XP64,
	WIN_SERVER_2003,
	WIN_VISTA,
	WIN_SERVER_2008,
	WIN_7,
	WIN_SERVER_2008_R2,
	WIN_8,
	WIN_SERVER_2012,
	WIN_8_1,
	WIN_SERVER_2012_R2,
	WIN_10,
	WIN_SERVER_2016
} OSVersionEnum;

/* Volume types */
enum
{
	TC_VOLUME_TYPE_NORMAL = 0,
	TC_VOLUME_TYPE_HIDDEN,
	TC_VOLUME_TYPE_COUNT
};

/* Prop volume types */
enum
{
	PROP_VOL_TYPE_NORMAL = 0,
	PROP_VOL_TYPE_HIDDEN,
	PROP_VOL_TYPE_OUTER,						/* Outer/normal (hidden volume protected) */
	PROP_VOL_TYPE_OUTER_VOL_WRITE_PREVENTED,	/* Outer/normal (hidden volume protected AND write already prevented) */
	PROP_VOL_TYPE_SYSTEM,
	PROP_NBR_VOLUME_TYPES
};

/* Hidden volume protection status */
enum
{
	HIDVOL_PROT_STATUS_NONE = 0,
	HIDVOL_PROT_STATUS_ACTIVE,
	HIDVOL_PROT_STATUS_ACTION_TAKEN			/* Active + action taken (write operation has already been denied) */
};

typedef struct
{
	BOOL ReadOnly;
	BOOL Removable;
	BOOL ProtectHiddenVolume;
	BOOL PreserveTimestamp;
	BOOL PartitionInInactiveSysEncScope;	/* If TRUE, we are to attempt to mount a partition located on an encrypted system drive without pre-boot authentication. */
	Password ProtectedHidVolPassword;	/* Password of hidden volume to protect against overwriting */
	BOOL UseBackupHeader;
	BOOL RecoveryMode;
	int ProtectedHidVolPkcs5Prf;
	int ProtectedHidVolPim;
	wchar_t Label[33]; /* maximum label length is 32 for NTFS and 11 for FAT32 */
} MountOptions;

#endif
