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 /* 27 * MD bootstrap main() and assorted miscellaneous 28 * commands. 29 */ 30 31 #include <stand.h> 32 #include <stddef.h> 33 #include <sys/disk.h> 34 #include <sys/reboot.h> 35 36 #include "bootstrap.h" 37 #include "libzfs.h" 38 39 COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset", 40 command_lszfs); 41 42 static int command_lszfs(int argc,char * argv[])43 command_lszfs(int argc, char *argv[]) 44 { 45 int err; 46 47 if (argc != 2) { 48 command_errmsg = "a single dataset must be supplied"; 49 return (CMD_ERROR); 50 } 51 52 err = zfs_list(argv[1]); 53 if (err != 0) { 54 command_errmsg = strerror(err); 55 return (CMD_ERROR); 56 } 57 return (CMD_OK); 58 } 59 60 COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments", 61 command_reloadbe); 62 63 static int command_reloadbe(int argc,char * argv[])64 command_reloadbe(int argc, char *argv[]) 65 { 66 int err; 67 char *root; 68 69 if (argc > 2) { 70 command_errmsg = "wrong number of arguments"; 71 return (CMD_ERROR); 72 } 73 74 if (argc == 2) { 75 err = zfs_bootenv(argv[1]); 76 } else { 77 root = getenv("zfs_be_root"); 78 if (root == NULL) { 79 /* There does not appear to be a ZFS pool here, exit without error */ 80 return (CMD_OK); 81 } 82 err = zfs_bootenv(root); 83 } 84 85 if (err != 0) { 86 command_errmsg = strerror(err); 87 return (CMD_ERROR); 88 } 89 90 return (CMD_OK); 91 } 92 93 uint64_t ldi_get_size(void * priv)94 ldi_get_size(void *priv) 95 { 96 int fd = (uintptr_t) priv; 97 uint64_t size; 98 99 ioctl(fd, DIOCGMEDIASIZE, &size); 100 return (size); 101 } 102