1 /*- 2 * Copyright (c) 2018 Warner Losh <imp@freebd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 /* 31 * MD bootstrap main() and assorted miscellaneous 32 * commands. 33 */ 34 35 #include <stand.h> 36 #include <stddef.h> 37 #include <sys/disk.h> 38 #include <sys/reboot.h> 39 40 #include "bootstrap.h" 41 42 #ifdef LOADER_ZFS_SUPPORT 43 #include "../zfs/libzfs.h" 44 #endif 45 46 COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset", 47 command_lszfs); 48 49 static int 50 command_lszfs(int argc, char *argv[]) 51 { 52 int err; 53 54 if (argc != 2) { 55 command_errmsg = "a single dataset must be supplied"; 56 return (CMD_ERROR); 57 } 58 59 err = zfs_list(argv[1]); 60 if (err != 0) { 61 command_errmsg = strerror(err); 62 return (CMD_ERROR); 63 } 64 return (CMD_OK); 65 } 66 67 COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments", 68 command_reloadbe); 69 70 static int 71 command_reloadbe(int argc, char *argv[]) 72 { 73 int err; 74 char *root; 75 76 if (argc > 2) { 77 command_errmsg = "wrong number of arguments"; 78 return (CMD_ERROR); 79 } 80 81 if (argc == 2) { 82 err = zfs_bootenv(argv[1]); 83 } else { 84 root = getenv("zfs_be_root"); 85 if (root == NULL) { 86 /* There does not appear to be a ZFS pool here, exit without error */ 87 return (CMD_OK); 88 } 89 err = zfs_bootenv(root); 90 } 91 92 if (err != 0) { 93 command_errmsg = strerror(err); 94 return (CMD_ERROR); 95 } 96 97 return (CMD_OK); 98 } 99 100 uint64_t 101 ldi_get_size(void *priv) 102 { 103 int fd = (uintptr_t) priv; 104 uint64_t size; 105 106 ioctl(fd, DIOCGMEDIASIZE, &size); 107 return (size); 108 } 109