freebsd-dev/stand/common/zfs_cmd.c
Warner Losh e4eef18848 Use M. Warner Losh everywhere on my copyrights.
Remove 'All Rights Reserved' where I can.
2018-05-01 16:29:22 +00:00

108 lines
2.7 KiB
C

/*-
* Copyright (c) 2018 M. Warner Losh <imp@freebd.org>
*
* 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 AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* MD bootstrap main() and assorted miscellaneous
* commands.
*/
#include <stand.h>
#include <stddef.h>
#include <sys/disk.h>
#include <sys/reboot.h>
#include "bootstrap.h"
#ifdef LOADER_ZFS_SUPPORT
#include "../zfs/libzfs.h"
#endif
COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset",
command_lszfs);
static int
command_lszfs(int argc, char *argv[])
{
int err;
if (argc != 2) {
command_errmsg = "a single dataset must be supplied";
return (CMD_ERROR);
}
err = zfs_list(argv[1]);
if (err != 0) {
command_errmsg = strerror(err);
return (CMD_ERROR);
}
return (CMD_OK);
}
COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments",
command_reloadbe);
static int
command_reloadbe(int argc, char *argv[])
{
int err;
char *root;
if (argc > 2) {
command_errmsg = "wrong number of arguments";
return (CMD_ERROR);
}
if (argc == 2) {
err = zfs_bootenv(argv[1]);
} else {
root = getenv("zfs_be_root");
if (root == NULL) {
/* There does not appear to be a ZFS pool here, exit without error */
return (CMD_OK);
}
err = zfs_bootenv(root);
}
if (err != 0) {
command_errmsg = strerror(err);
return (CMD_ERROR);
}
return (CMD_OK);
}
uint64_t
ldi_get_size(void *priv)
{
int fd = (uintptr_t) priv;
uint64_t size;
ioctl(fd, DIOCGMEDIASIZE, &size);
return (size);
}