2 * Copyright (c) 2007 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/mount_hammer/mount_hammer.c,v 1.9 2008/07/19 18:48:15 dillon Exp $
37 #include <sys/types.h>
38 #include <sys/diskslice.h>
39 #include <sys/diskmbr.h>
42 #include <sys/syslimits.h>
43 #include <vfs/hammer/hammer_mount.h>
44 #include <vfs/hammer/hammer_disk.h>
61 typedef const char **ary_ptr_t;
63 static void extract_volumes(ary_ptr_t *aryp, int *countp, char **av, int ac);
65 #define MOPT_UPDATE { "update", 0, MNT_UPDATE, 0 }
67 #define MOPT_HAMMEROPTS \
68 { "history", 1, HMNT_NOHISTORY, 1 }, \
69 { "master=", 0, HMNT_MASTERID, 1 }, \
70 { "mirror", 1, HMNT_MASTERID, 1 }
72 static struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_HAMMEROPTS,
73 MOPT_UPDATE, MOPT_NULL };
75 static void usage(void);
78 main(int ac, char **av)
80 struct hammer_mount_info info;
82 struct hammer_volume_ondisk *od;
96 bzero(&info, sizeof(info));
101 while ((ch = getopt(ac, av, "o:T:u")) != -1) {
104 info.asof = strtoull(optarg, NULL, 0);
107 getmntopts(optarg, mopts, &mount_flags, &info.hflags);
111 * Handle extended flags with parameters.
113 if (info.hflags & HMNT_MASTERID) {
114 ptr = strstr(optarg, "master=");
116 info.master_id = strtol(ptr + 7, NULL, 0);
117 if (info.master_id == 0) {
119 "hammer_mount: Warning: a master id of 0 is the default, explicit\n"
120 "settings should probably use 1-15\n");
123 ptr = strstr(optarg, "nomirror");
129 init_flags |= MNT_UPDATE;
138 mount_flags |= init_flags;
141 * Only the mount point need be specified in update mode.
143 if (init_flags & MNT_UPDATE) {
149 if (mount(vfc.vfc_name, mountpt, mount_flags, &info))
150 err(1, "mountpoint %s", mountpt);
160 * Mount arguments: vol [vol...] mountpt
162 extract_volumes(&info.volumes, &info.nvolumes, av, ac - 1);
163 mountpt = av[ac - 1];
166 * Load the hammer module if necessary (this bit stolen from
169 error = getvfsbyname("hammer", &vfc);
170 if (error && vfsisloadable("hammer")) {
171 if (vfsload("hammer") != 0)
172 err(1, "vfsload(hammer)");
174 error = getvfsbyname("hammer", &vfc);
177 errx(1, "hammer filesystem is not available");
179 if (mount(vfc.vfc_name, mountpt, mount_flags, &info)) {
180 /* Build fdevs in case of error to report failed devices */
181 fdevs_size = ac * PATH_MAX;
182 fdevs = malloc(fdevs_size);
183 for (ax = 0; ax < ac - 1; ax++) {
184 fd = open(info.volumes[ax], O_RDONLY);
186 printf ("%s: open failed\n", info.volumes[ax]);
187 strlcat(fdevs, info.volumes[ax], fdevs_size);
189 strlcat(fdevs, " ", fdevs_size);
193 od = malloc(HAMMER_BUFSIZE);
200 bzero(od, HAMMER_BUFSIZE);
201 pr = pread(fd, od, HAMMER_BUFSIZE, 0);
202 if (pr != HAMMER_BUFSIZE ||
203 od->vol_signature != HAMMER_FSBUF_VOLUME) {
204 printf("%s: Not a valid HAMMER filesystem\n", info.volumes[ax]);
205 strlcat(fdevs, info.volumes[ax], fdevs_size);
207 strlcat(fdevs, " ", fdevs_size);
211 err(1,"mount %s on %s", fdevs, mountpt);
217 * Extract a volume list
220 extract_volumes(ary_ptr_t *aryp, int *countp, char **av, int ac)
224 const char **ary = malloc(sizeof(char *) * 32);
231 ary = realloc(ary, sizeof(char *) * arymax);
233 if (strchr(*av, ':') == NULL) {
237 while ((ptr = next) != NULL) {
240 ary = realloc(ary, sizeof(char *) *
243 if ((next = strchr(ptr, ':')) != NULL)
260 fprintf(stderr, "usage: mount_hammer [-o options] [-T transaction-id] "
261 "special ... node\n");
262 fprintf(stderr, " mount_hammer [-o options] [-T transaction-id] "
263 "special[:special]* node\n");
264 fprintf(stderr, " mount_hammer -u [-o options] node\n");