2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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.
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
34 * $DragonFly: src/sbin/hammer/cmd_version.c,v 1.2 2008/11/13 02:23:53 dillon Exp $
37 * Get and set the HAMMER filesystem version.
43 * version <filesystem>
46 hammer_cmd_get_version(char **av, int ac)
48 struct hammer_ioc_version version;
53 errx(1, "hammer version - expected a single <fs> path arg");
54 fd = open(av[0], O_RDONLY);
56 fprintf(stderr, "hammer version: unable to access %s: %s\n",
57 av[0], strerror(errno));
62 * version.cur_version must be set to 0 to retrieve current version
65 bzero(&version, sizeof(version));
66 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) {
67 fprintf(stderr, "hammer version ioctl: %s\n", strerror(errno));
70 snprintf(wip, 16, "%d", version.wip_version);
71 printf("min=%d wip=%s max=%d current=%d description=\"%s\"\n",
73 (version.wip_version > version.max_version) ? "none" : wip,
80 * Loop over available versions to display description.
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",
88 (version.cur_version < version.wip_version ?
91 ++version.cur_version;
98 * version-upgrade <filesystem> <version> [force]
101 hammer_cmd_set_version(char **av, int ac)
103 struct hammer_ioc_version version;
108 if (ac < 2 || ac > 3 || (ac == 3 && strcmp(av[2], "force") != 0)) {
110 "hammer version-upgrade: expected <fs> vers# [force]\n");
114 fd = open(av[0], O_RDONLY);
116 fprintf(stderr, "hammer version-upgrade: unable to access %s: %s\n",
117 av[0], strerror(errno));
121 bzero(&version, sizeof(version));
122 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) {
123 fprintf(stderr, "hammer ioctl: %s\n", strerror(errno));
126 overs = version.cur_version;
128 version.cur_version = strtol(av[1], NULL, 0);
129 nvers = version.cur_version;
131 if (ioctl(fd, HAMMERIOC_GET_VERSION, &version) < 0) {
132 fprintf(stderr, "hammer ioctl: %s\n", strerror(errno));
135 if (version.cur_version >= version.wip_version && ac != 3) {
137 "The requested version is a work-in-progress"
138 " and requires the 'force' directive\n");
141 if (ioctl(fd, HAMMERIOC_SET_VERSION, &version) < 0) {
142 fprintf(stderr, "hammer version-upgrade ioctl: %s\n",
146 if (version.head.error) {
147 fprintf(stderr, "hammer version-upgrade ioctl: %s\n",
148 strerror(version.head.error));
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");