1 /* 2 * Copyright (c) 2008 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sbin/hammer/cmd_version.c,v 1.2 2008/11/13 02:23:53 dillon Exp $ 35 */ 36 /* 37 * Get and set the HAMMER filesystem version. 38 */ 39 40 #include "hammer.h" 41 42 /* 43 * version <filesystem> 44 */ 45 void 46 hammer_cmd_get_version(char **av, int ac) 47 { 48 struct hammer_ioc_version version; 49 char wip[16]; 50 int fd; 51 52 if (ac != 1) 53 errx(1, "hammer version - expected a single <fs> path arg"); 54 fd = open(av[0], O_RDONLY); 55 if (fd < 0) { 56 fprintf(stderr, "hammer version: unable to access %s: %s\n", 57 av[0], strerror(errno)); 58 exit(1); 59 } 60 61 /* 62 * version.cur_version must be set to 0 to retrieve current version 63 * info. 64 */ 65 bzero(&version, sizeof(version)); 66 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) { 67 fprintf(stderr, "hammer version ioctl: %s\n", strerror(errno)); 68 exit(1); 69 } 70 snprintf(wip, 16, "%d", version.wip_version); 71 printf("min=%d wip=%s max=%d current=%d description=\"%s\"\n", 72 version.min_version, 73 (version.wip_version > version.max_version) ? "none" : wip, 74 version.max_version, 75 version.cur_version, 76 version.description 77 ); 78 79 /* 80 * Loop over available versions to display description. 81 */ 82 if (QuietOpt == 0) { 83 version.cur_version = 1; 84 printf("available versions:\n"); 85 while (ioctl(fd, HAMMERIOC_GET_VERSION, &version) == 0) { 86 printf(" %d\t%s\t%s\n", 87 version.cur_version, 88 (version.cur_version < version.wip_version ? 89 "NORM" : "WIP "), 90 version.description); 91 ++version.cur_version; 92 } 93 } 94 close(fd); 95 } 96 97 /* 98 * version-upgrade <filesystem> <version> [force] 99 */ 100 void 101 hammer_cmd_set_version(char **av, int ac) 102 { 103 struct hammer_ioc_version version; 104 int fd; 105 int overs; 106 int nvers; 107 108 if (ac < 2 || ac > 3 || (ac == 3 && strcmp(av[2], "force") != 0)) { 109 fprintf(stderr, 110 "hammer version-upgrade: expected <fs> vers# [force]\n"); 111 exit(1); 112 } 113 114 fd = open(av[0], O_RDONLY); 115 if (fd < 0) { 116 fprintf(stderr, "hammer version-upgrade: unable to access %s: %s\n", 117 av[0], strerror(errno)); 118 exit(1); 119 } 120 121 bzero(&version, sizeof(version)); 122 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) { 123 fprintf(stderr, "hammer ioctl: %s\n", strerror(errno)); 124 exit(1); 125 } 126 overs = version.cur_version; 127 128 version.cur_version = strtol(av[1], NULL, 0); 129 nvers = version.cur_version; 130 131 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) { 132 fprintf(stderr, "hammer ioctl: %s\n", strerror(errno)); 133 exit(1); 134 } 135 if (version.cur_version >= version.wip_version && ac != 3) { 136 fprintf(stderr, 137 "The requested version is a work-in-progress" 138 " and requires the 'force' directive\n"); 139 exit(1); 140 } 141 if (ioctl(fd, HAMMERIOC_SET_VERSION, &version) < 0) { 142 fprintf(stderr, "hammer version-upgrade ioctl: %s\n", 143 strerror(errno)); 144 exit(1); 145 } 146 if (version.head.error) { 147 fprintf(stderr, "hammer version-upgrade ioctl: %s\n", 148 strerror(version.head.error)); 149 exit(1); 150 } 151 printf("hammer version-upgrade: succeeded\n"); 152 if (overs < 3 && nvers >= 3) { 153 printf("NOTE! Please run 'hammer cleanup' to convert the\n" 154 "<pfs>/snapshots directories to the new meta-data\n" 155 "format. Once converted configuration data will\n" 156 "no longer resides in <pfs>/snapshots and you can\n" 157 "even rm -rf it entirely if you want.\n"); 158 } 159 160 close(fd); 161 } 162 163