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");