/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2017 Kyle J. Kneitinger <kyle@kneit.in>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LIBBE_H
#define _LIBBE_H
#include <libnvpair.h>
#include <stdbool.h>
#define BE_MAXPATHLEN 512
typedef struct libbe_handle libbe_handle_t;
typedef enum be_error {
BE_ERR_SUCCESS = 0, /* No error */
BE_ERR_INVALIDNAME, /* invalid boot env name */
BE_ERR_EXISTS, /* boot env name already taken */
BE_ERR_NOENT, /* boot env doesn't exist */
BE_ERR_PERMS, /* insufficient permissions */
BE_ERR_DESTROYACT, /* cannot destroy active boot env */
BE_ERR_DESTROYMNT, /* destroying a mounted be requires force */
BE_ERR_BADPATH, /* path not suitable for operation */
BE_ERR_PATHBUSY, /* requested path is busy */
BE_ERR_PATHLEN, /* provided name exceeds maximum length limit */
BE_ERR_BADMOUNT, /* mountpoint is not '/' */
BE_ERR_NOORIGIN, /* could not open snapshot's origin */
BE_ERR_MOUNTED, /* boot environment is already mounted */
BE_ERR_NOMOUNT, /* boot environment is not mounted */
BE_ERR_ZFSOPEN, /* calling zfs_open() failed */
BE_ERR_ZFSCLONE, /* error when calling zfs_clone to create be */
BE_ERR_IO, /* error when doing some I/O operation */
BE_ERR_NOPOOL, /* operation not supported on this pool */
BE_ERR_NOMEM, /* insufficient memory */
BE_ERR_UNKNOWN, /* unknown error */
BE_ERR_INVORIGIN, /* invalid origin */
BE_ERR_HASCLONES, /* snapshot has clones */
} be_error_t;
/* Library handling functions: be.c */
libbe_handle_t *libbe_init(const char *root);
void libbe_close(libbe_handle_t *);
/* Bootenv information functions: be_info.c */
const char *be_active_name(libbe_handle_t *);
const char *be_active_path(libbe_handle_t *);
const char *be_nextboot_name(libbe_handle_t *);
const char *be_nextboot_path(libbe_handle_t *);
const char *be_root_path(libbe_handle_t *);
int be_get_bootenv_props(libbe_handle_t *, nvlist_t *);
int be_get_dataset_props(libbe_handle_t *, const char *, nvlist_t *);
int be_get_dataset_snapshots(libbe_handle_t *, const char *, nvlist_t *);
int be_prop_list_alloc(nvlist_t **be_list);
void be_prop_list_free(nvlist_t *be_list);
int be_activate(libbe_handle_t *, const char *, bool);
int be_deactivate(libbe_handle_t *, const char *, bool);
bool be_is_auto_snapshot_name(libbe_handle_t *, const char *);
/* Bootenv creation functions */
int be_create(libbe_handle_t *, const char *);
int be_create_depth(libbe_handle_t *, const char *, const char *, int);
int be_create_from_existing(libbe_handle_t *, const char *, const char *);
int be_create_from_existing_snap(libbe_handle_t *, const char *, const char *);
int be_snapshot(libbe_handle_t *, const char *, const char *, bool, char *);
/* Bootenv manipulation functions */
int be_rename(libbe_handle_t *, const char *, const char *);
/* Bootenv removal functions */
typedef enum {
BE_DESTROY_FORCE = 1 << 0,
BE_DESTROY_ORIGIN = 1 << 1,
BE_DESTROY_AUTOORIGIN = 1 << 2,
} be_destroy_opt_t;
int be_destroy(libbe_handle_t *, const char *, int);
/* Bootenv mounting functions: be_access.c */
typedef enum {
BE_MNT_FORCE = 1 << 0,
BE_MNT_DEEP = 1 << 1,
} be_mount_opt_t;
int be_mount(libbe_handle_t *, const char *, const char *, int, char *);
int be_unmount(libbe_handle_t *, const char *, int);
int be_mounted_at(libbe_handle_t *, const char *path, nvlist_t *);
/* Error related functions: be_error.c */
int libbe_errno(libbe_handle_t *);
const char *libbe_error_description(libbe_handle_t *);
void libbe_print_on_error(libbe_handle_t *, bool);
/* Utility Functions */
int be_root_concat(libbe_handle_t *, const char *, char *);
int be_validate_name(libbe_handle_t * __unused, const char *);
int be_validate_snap(libbe_handle_t *, const char *);
int be_exists(libbe_handle_t *, const char *);
int be_export(libbe_handle_t *, const char *, int fd);
int be_import(libbe_handle_t *, const char *, int fd);
#if SOON
int be_add_child(libbe_handle_t *, const char *, bool);
#endif
void be_nicenum(uint64_t num, char *buf, size_t buflen);
#endif /* _LIBBE_H */
