freebsd-skq/lib/libbe/be_impl.h
kevans 044685cd18 libbe(3): move altroot augmentation bits around a little bit
We could perhaps have a method that does this given a dataset, but it's yet
clear that we'll always want to bypass the altroot when we grab the
mountpoint. For now, we'll refactor things a bit so we grab the altroot
length when libbe is initialized and have a common method that does the
necessary augmentation (replace with / if it's the root, return a pointer to
later in the string if not).

This will be used in some upcoming work to make be_mount work properly for
deep BEs.

MFC after:	1 week
2019-01-09 22:31:10 +00:00

77 lines
2.3 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2017 Kyle J. Kneitinger <kyle@kneit.in>
* All rights reserved.
*
* 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_IMPL_H
#define _LIBBE_IMPL_H
#include <libzfs.h>
#include "be.h"
struct libbe_handle {
char root[BE_MAXPATHLEN];
char rootfs[BE_MAXPATHLEN];
char bootfs[BE_MAXPATHLEN];
size_t altroot_len;
zpool_handle_t *active_phandle;
libzfs_handle_t *lzh;
be_error_t error;
bool print_on_err;
};
struct libbe_deep_clone {
libbe_handle_t *lbh;
const char *bename;
const char *snapname;
const char *be_root;
};
struct libbe_dccb {
libbe_handle_t *lbh;
zfs_handle_t *zhp;
nvlist_t *props;
};
typedef struct prop_data {
nvlist_t *list;
libbe_handle_t *lbh;
bool single_object; /* list will contain props directly */
} prop_data_t;
int prop_list_builder_cb(zfs_handle_t *, void *);
int be_proplist_update(prop_data_t *);
char *be_mountpoint_augmented(libbe_handle_t *lbh, char *mountpoint);
/* Clobbers any previous errors */
int set_error(libbe_handle_t *, be_error_t);
#endif /* _LIBBE_IMPL_H */