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 1.4 2008/06/03 18:43:34 dillon Exp $
37 #include <sys/types.h>
38 #include <sys/diskslice.h>
39 #include <sys/diskmbr.h>
42 #include <vfs/hammer/hammer_mount.h>
59 typedef const char **ary_ptr_t;
61 static void hammer_parsetime(u_int64_t *tidp, const char *timestr);
62 static void extract_volumes(ary_ptr_t *aryp, int *countp, char **av, int ac);
64 #define MOPT_UPDATE { "update", 0, MNT_UPDATE, 0 }
66 #define MOPT_HAMMEROPTS \
67 { "history", 1, HMNT_NOHISTORY, 1 }
69 static struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_HAMMEROPTS,
70 MOPT_UPDATE, MOPT_NULL };
72 static void usage(void);
75 main(int ac, char **av)
77 struct hammer_mount_info info;
85 bzero(&info, sizeof(info));
90 while ((ch = getopt(ac, av, "o:T:u")) != -1) {
93 hammer_parsetime(&info.asof, optarg);
96 getmntopts(optarg, mopts, &mount_flags, &info.hflags);
99 init_flags |= MNT_UPDATE;
108 mount_flags |= init_flags;
111 * Only the mount point need be specified in update mode.
113 if (init_flags & MNT_UPDATE) {
119 if (mount(vfc.vfc_name, mountpt, mount_flags, &info))
130 * Mount arguments: vol [vol...] mountpt
132 extract_volumes(&info.volumes, &info.nvolumes, av, ac - 1);
133 mountpt = av[ac - 1];
136 * Load the hammer module if necessary (this bit stolen from
139 error = getvfsbyname("hammer", &vfc);
140 if (error && vfsisloadable("hammer")) {
141 if (vfsload("hammer") != 0)
142 err(1, "vfsload(hammer)");
144 error = getvfsbyname("hammer", &vfc);
147 errx(1, "hammer filesystem is not available");
149 if (mount(vfc.vfc_name, mountpt, mount_flags, &info))
155 * Parse a timestamp for the mount point
162 hammer_parsetime(u_int64_t *tidp, const char *timestr)
175 if (isalpha(timestr[strlen(timestr)-1])) {
176 if (sscanf(timestr, "%d%c", &n, &c) != 2)
202 localtime_r(&t, &tm);
203 seconds = (double)tm.tm_sec;
206 n = sscanf(timestr, "%4d%2d%2d:%2d%2d%lf",
207 &tm.tm_year, &tm.tm_mon, &tm.tm_mday,
208 &tm.tm_hour, &tm.tm_min, &seconds);
211 tm.tm_sec = (int)seconds;
214 localtime_r(&t, &tm);
215 printf("mount_hammer as-of %s", asctime(&tm));
216 *tidp = (u_int64_t)t * 1000000000 +
217 (seconds - (int)seconds) * 1000000000;
221 * Extract a volume list
224 extract_volumes(ary_ptr_t *aryp, int *countp, char **av, int ac)
228 const char **ary = malloc(sizeof(char *) * 32);
235 ary = realloc(ary, sizeof(char *) * arymax);
237 if (strchr(*av, ':') == NULL) {
241 while ((ptr = next) != NULL) {
244 ary = realloc(ary, sizeof(char *) *
247 if ((next = strchr(ptr, ':')) != NULL)
264 fprintf(stderr, "mount_hammer [-T time] [-o options] "
265 "volume [volume...] mount_pt");
266 fprintf(stderr, "mount_hammer -u [-o options] mount_pt");
267 fprintf(stderr, " time: +n[s/m/h/D/M/Y]\n"
268 " time: yyyymmdd[:hhmmss]\n");