1 /*- 2 * Copyright (c) 2018 M. Warner Losh <imp@FreeBSD.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 /* 30 * MD bootstrap main() and assorted miscellaneous 31 * commands. 32 */ 33 34 #include <stand.h> 35 #include <stddef.h> 36 #include <sys/disk.h> 37 #include <sys/reboot.h> 38 39 #include "bootstrap.h" 40 #include "libzfs.h" 41 42 COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset", 43 command_lszfs); 44 45 static int 46 command_lszfs(int argc, char *argv[]) 47 { 48 int err; 49 50 if (argc != 2) { 51 command_errmsg = "a single dataset must be supplied"; 52 return (CMD_ERROR); 53 } 54 55 err = zfs_list(argv[1]); 56 if (err != 0) { 57 command_errmsg = strerror(err); 58 return (CMD_ERROR); 59 } 60 return (CMD_OK); 61 } 62 63 COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments", 64 command_reloadbe); 65 66 static int 67 command_reloadbe(int argc, char *argv[]) 68 { 69 int err; 70 char *root; 71 72 if (argc > 2) { 73 command_errmsg = "wrong number of arguments"; 74 return (CMD_ERROR); 75 } 76 77 if (argc == 2) { 78 err = zfs_bootenv(argv[1]); 79 } else { 80 root = getenv("zfs_be_root"); 81 if (root == NULL) { 82 /* There does not appear to be a ZFS pool here, exit without error */ 83 return (CMD_OK); 84 } 85 err = zfs_bootenv(root); 86 } 87 88 if (err != 0) { 89 command_errmsg = strerror(err); 90 return (CMD_ERROR); 91 } 92 93 return (CMD_OK); 94 } 95 96 uint64_t 97 ldi_get_size(void *priv) 98 { 99 int fd = (uintptr_t) priv; 100 uint64_t size; 101 102 ioctl(fd, DIOCGMEDIASIZE, &size); 103 return (size); 104 } 105