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
35 #include <sys/types.h>
37 #include <sys/syslimits.h>
38 #include <vfs/hammer/hammer_mount.h>
39 #include <vfs/hammer/hammer_disk.h>
51 static void extract_volumes(struct hammer_mount_info *info, char **av, int ac);
52 static void free_volumes(struct hammer_mount_info *info);
53 static void test_volumes(struct hammer_mount_info *info);
54 static void usage(void);
56 #define MOPT_UPDATE { "update", 0, MNT_UPDATE, 0 }
58 #define MOPT_HAMMEROPTS \
59 { "history", 1, HMNT_NOHISTORY, 1 }, \
60 { "master=", 0, HMNT_MASTERID, 1 }, \
61 { "mirror", 1, HMNT_NOMIRROR, 1 }
63 static struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_HAMMEROPTS,
64 MOPT_UPDATE, MOPT_NULL };
67 main(int ac, char **av)
69 struct hammer_mount_info info;
78 bzero(&info, sizeof(info));
80 while ((ch = getopt(ac, av, "o:T:u")) != -1) {
83 info.asof = strtoull(optarg, NULL, 0);
86 getmntopts(optarg, mopts, &mount_flags, &info.hflags);
89 * Handle extended flags with parameters.
91 if (info.hflags & HMNT_MASTERID) {
92 ptr = strstr(optarg, "master=");
94 info.master_id = strtol(ptr + 7, NULL, 0);
95 if (info.master_id == 0) {
97 "mount_hammer: Warning: a master id of 0 is the default, explicit\n"
98 "settings should probably use 1-15\n");
102 if (info.hflags & HMNT_NOMIRROR) {
103 ptr = strstr(optarg, "nomirror");
109 init_flags |= MNT_UPDATE;
118 mount_flags |= init_flags;
121 * Only the mount point need be specified in update mode.
123 if (init_flags & MNT_UPDATE) {
129 if (mount(vfc.vfc_name, mountpt, mount_flags, &info))
130 err(1, "mountpoint %s", mountpt);
140 * Mount arguments: vol [vol...] mountpt
142 extract_volumes(&info, av, ac - 1);
143 mountpt = av[ac - 1];
146 * Load the hammer module if necessary (this bit stolen from
149 error = getvfsbyname("hammer", &vfc);
150 if (error && vfsisloadable("hammer")) {
151 if (vfsload("hammer") != 0)
152 err(1, "vfsload(hammer)");
154 error = getvfsbyname("hammer", &vfc);
157 errx(1, "hammer filesystem is not available");
159 if (mount(vfc.vfc_name, mountpt, mount_flags, &info)) {
169 * Extract a volume list
173 extract_volumes(struct hammer_mount_info *info, char **av, int ac)
177 const char **ary = malloc(sizeof(char *) * arymax);
185 ary = realloc(ary, sizeof(char *) * arymax);
187 if (strchr(*av, ':') == NULL) {
188 ary[idx++] = strdup(*av);
190 orig = next = strdup(*av);
191 while ((ptr = next) != NULL) {
194 ary = realloc(ary, sizeof(char *) *
197 if ((next = strchr(ptr, ':')) != NULL)
199 ary[idx++] = strdup(ptr);
206 info->nvolumes = idx;
212 free_volumes(struct hammer_mount_info *info)
216 for (i = 0; i < info->nvolumes; i++)
217 ; /* free((char*)info->volumes[i]); */
223 test_volumes(struct hammer_mount_info *info)
227 char buf[HAMMER_BUFSIZE];
228 hammer_volume_ondisk_t ondisk;
230 for (i = 0; i < info->nvolumes; i++) {
231 vol = info->volumes[i];
232 fd = open(vol, O_RDONLY);
234 fprintf(stderr, "%s: Failed to open\n", vol);
238 bzero(buf, HAMMER_BUFSIZE);
239 ret = pread(fd, buf, HAMMER_BUFSIZE, 0);
240 if (ret != HAMMER_BUFSIZE) {
242 "%s: Failed to read volume header\n", vol);
246 ondisk = (hammer_volume_ondisk_t)buf;
247 if (ondisk->vol_signature != HAMMER_FSBUF_VOLUME) {
249 "%s: Not a valid HAMMER filesystem\n", vol);
252 if (ondisk->vol_count != info->nvolumes) {
254 "%s: Volume header says %d volumes\n",
255 vol, ondisk->vol_count);
267 fprintf(stderr, "usage: mount_hammer [-o options] [-T transaction-id] "
268 "special ... node\n");
269 fprintf(stderr, " mount_hammer [-o options] [-T transaction-id] "
270 "special[:special]* node\n");
271 fprintf(stderr, " mount_hammer -u [-o options] node\n");