1 /*- 2 * Copyright (c) 2018 M. Warner Losh <imp@freebd.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 41 #ifdef LOADER_ZFS_SUPPORT 42 #include "libzfs.h" 43 #endif 44 45 COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset", 46 command_lszfs); 47 48 static int 49 command_lszfs(int argc, char *argv[]) 50 { 51 int err; 52 53 if (argc != 2) { 54 command_errmsg = "a single dataset must be supplied"; 55 return (CMD_ERROR); 56 } 57 58 err = zfs_list(argv[1]); 59 if (err != 0) { 60 command_errmsg = strerror(err); 61 return (CMD_ERROR); 62 } 63 return (CMD_OK); 64 } 65 66 COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments", 67 command_reloadbe); 68 69 static int 70 command_reloadbe(int argc, char *argv[]) 71 { 72 int err; 73 char *root; 74 75 if (argc > 2) { 76 command_errmsg = "wrong number of arguments"; 77 return (CMD_ERROR); 78 } 79 80 if (argc == 2) { 81 err = zfs_bootenv(argv[1]); 82 } else { 83 root = getenv("zfs_be_root"); 84 if (root == NULL) { 85 /* There does not appear to be a ZFS pool here, exit without error */ 86 return (CMD_OK); 87 } 88 err = zfs_bootenv(root); 89 } 90 91 if (err != 0) { 92 command_errmsg = strerror(err); 93 return (CMD_ERROR); 94 } 95 96 return (CMD_OK); 97 } 98 99 uint64_t 100 ldi_get_size(void *priv) 101 { 102 int fd = (uintptr_t) priv; 103 uint64_t size; 104 105 ioctl(fd, DIOCGMEDIASIZE, &size); 106 return (size); 107 } 108