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 err(1, "hammer version: unable to access %s", av[0]); 57 58 /* 59 * version.cur_version must be set to 0 to retrieve current version 60 * info. 61 */ 62 bzero(&version, sizeof(version)); 63 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) 64 err(1, "hammer version ioctl"); 65 HammerVersion = version.cur_version; 66 67 snprintf(wip, 16, "%d", version.wip_version); 68 printf("min=%d wip=%s max=%d current=%d description=\"%s\"\n", 69 version.min_version, 70 (version.wip_version > version.max_version) ? "none" : wip, 71 version.max_version, 72 version.cur_version, 73 version.description 74 ); 75 76 /* 77 * Loop over available versions to display description. 78 */ 79 if (QuietOpt == 0) { 80 version.cur_version = 1; 81 printf("available versions:\n"); 82 while (ioctl(fd, HAMMERIOC_GET_VERSION, &version) == 0) { 83 printf(" %d\t%s\t%s\n", 84 version.cur_version, 85 (version.cur_version < version.wip_version ? 86 "NORM" : "WIP "), 87 version.description); 88 ++version.cur_version; 89 } 90 } 91 close(fd); 92 } 93 94 /* 95 * version-upgrade <filesystem> <version> [force] 96 */ 97 void 98 hammer_cmd_set_version(char **av, int ac) 99 { 100 struct hammer_ioc_version version; 101 int fd; 102 int overs; 103 int nvers; 104 105 if (ac < 2 || ac > 3 || (ac == 3 && strcmp(av[2], "force") != 0)) 106 errx(1, "hammer version-upgrade: expected <fs> vers# [force]"); 107 108 fd = open(av[0], O_RDONLY); 109 if (fd < 0) 110 err(1, "hammer version-upgrade: unable to access %s", av[0]); 111 112 bzero(&version, sizeof(version)); 113 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) 114 err(1, "hammer ioctl"); 115 HammerVersion = version.cur_version; 116 overs = version.cur_version; 117 118 version.cur_version = strtol(av[1], NULL, 0); 119 nvers = version.cur_version; 120 121 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) 122 err(1, "hammer ioctl"); 123 HammerVersion = version.cur_version; 124 if (version.cur_version >= version.wip_version && ac != 3) 125 errx(1, "The requested version is a work-in-progress" 126 " and requires the 'force' directive"); 127 128 if (ioctl(fd, HAMMERIOC_SET_VERSION, &version) < 0) 129 err(1, "hammer version-upgrade ioctl"); 130 if (version.head.error) 131 errx(1, "hammer version-upgrade ioctl"); 132 133 printf("hammer version-upgrade: succeeded\n"); 134 if (overs < 3 && nvers >= 3) { 135 printf("NOTE! Please run 'hammer cleanup' to convert the\n" 136 "<pfs>/snapshots directories to the new meta-data\n" 137 "format. Once converted configuration data will\n" 138 "no longer resides in <pfs>/snapshots and you can\n" 139 "even rm -rf it entirely if you want.\n"); 140 } 141 142 close(fd); 143 } 144 145