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 /* 28 * MD bootstrap main() and assorted miscellaneous 29 * commands. 30 */ 31 32 #include <stand.h> 33 #include <stddef.h> 34 #include <sys/disk.h> 35 #include <sys/reboot.h> 36 37 #include "bootstrap.h" 38 #include "libzfs.h" 39 40 COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset", 41 command_lszfs); 42 43 static int 44 command_lszfs(int argc, char *argv[]) 45 { 46 int err; 47 48 if (argc != 2) { 49 command_errmsg = "a single dataset must be supplied"; 50 return (CMD_ERROR); 51 } 52 53 err = zfs_list(argv[1]); 54 if (err != 0) { 55 command_errmsg = strerror(err); 56 return (CMD_ERROR); 57 } 58 return (CMD_OK); 59 } 60 61 COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments", 62 command_reloadbe); 63 64 static int 65 command_reloadbe(int argc, char *argv[]) 66 { 67 int err; 68 char *root; 69 70 if (argc > 2) { 71 command_errmsg = "wrong number of arguments"; 72 return (CMD_ERROR); 73 } 74 75 if (argc == 2) { 76 err = zfs_bootenv(argv[1]); 77 } else { 78 root = getenv("zfs_be_root"); 79 if (root == NULL) { 80 /* There does not appear to be a ZFS pool here, exit without error */ 81 return (CMD_OK); 82 } 83 err = zfs_bootenv(root); 84 } 85 86 if (err != 0) { 87 command_errmsg = strerror(err); 88 return (CMD_ERROR); 89 } 90 91 return (CMD_OK); 92 } 93 94 uint64_t 95 ldi_get_size(void *priv) 96 { 97 int fd = (uintptr_t) priv; 98 uint64_t size; 99 100 ioctl(fd, DIOCGMEDIASIZE, &size); 101 return (size); 102 } 103