Device metadata backup

Functions
int	crypt_header_backup (struct crypt_device *cd, const char *requested_type, const char *backup_file)
int	crypt_header_restore (struct crypt_device *cd, const char *requested_type, const char *backup_file)

Detailed Description

Function Documentation

crypt_header_backup()

int crypt_header_backup	(	struct crypt_device *	cd,
		const char *	requested_type,
		const char *	backup_file
	)

Backup header and keyslots to file.

Parameters

cd	crypt device handle
requested_type	crypt-type or NULL for all known
backup_file	file to backup header to

Returns

0 on success or negative errno value otherwise.

crypt_header_restore()

int crypt_header_restore	(	struct crypt_device *	cd,
		const char *	requested_type,
		const char *	backup_file
	)

Restore header and keyslots from backup file.

Parameters

cd	crypt device handle
requested_type	crypt-type or NULL for all known
backup_file	file to restore header from

Returns

0 on success or negative errno value otherwise.