freebsd-nq/include/libzfsbootenv.h
Toomas Soome 1db9e6e4e4
zfs label bootenv should store data as nvlist
nvlist does allow us to support different data types and systems.

To encapsulate user data to/from nvlist, the libzfsbootenv library is
provided.

Reviewed-by: Arvind Sankar <nivedita@alum.mit.edu>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Signed-off-by: Toomas Soome <tsoome@me.com>
Closes #10774
2020-09-15 15:42:27 -07:00

42 lines
1.2 KiB
C

/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2020 Toomas Soome <tsoome@me.com>
*/
#ifndef _LIBZFSBOOTENV_H
#define _LIBZFSBOOTENV_H
#ifdef __cplusplus
extern "C" {
#endif
typedef enum lzbe_flags {
lzbe_add, /* add data to existing nvlist */
lzbe_replace /* replace current nvlist */
} lzbe_flags_t;
extern int lzbe_nvlist_get(const char *, const char *, void **);
extern int lzbe_nvlist_set(const char *, const char *, void *);
extern void lzbe_nvlist_free(void *);
extern int lzbe_add_pair(void *, const char *, const char *, void *, size_t);
extern int lzbe_remove_pair(void *, const char *);
extern int lzbe_set_boot_device(const char *, lzbe_flags_t, const char *);
extern int lzbe_get_boot_device(const char *, char **);
extern int lzbe_bootenv_print(const char *, const char *, FILE *);
#ifdef __cplusplus
}
#endif
#endif /* _LIBZFSBOOTENV_H */