/*
 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 TC_HEADER_Common_Wipe
#define TC_HEADER_Common_Wipe

#include "Tcdefs.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef enum
{
	/* WARNING: As these values are written to config files, if they or their meanings
	are changed, incompatiblity with other versions may arise (upgrade, downgrade, etc.).
	When adding a new constant, verify that the value is unique within this block. */
	TC_WIPE_NONE = 0,
	TC_WIPE_1_RAND = 100,
	TC_WIPE_3_DOD_5220 = 300,
	TC_WIPE_7_DOD_5220 = 700,
	TC_WIPE_35_GUTMANN = 3500,
	TC_WIPE_256 = 25600

} WipeAlgorithmId;

#define TC_WIPE_RAND_CHAR_COUNT 3

int GetWipePassCount (WipeAlgorithmId algorithm);
BOOL WipeBuffer (WipeAlgorithmId algorithm, byte randChars[TC_WIPE_RAND_CHAR_COUNT], int pass, byte *buffer, size_t size);

#ifdef __cplusplus
}
#endif

#endif // TC_HEADER_Common_Wipe