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/hammer/hammer.c,v 1.8 2008/02/08 08:30:56 dillon Exp $
39 static void hammer_parsetime(u_int64_t
*tidp
, const char *timestr
);
40 static void hammer_parsedevs(const char *blkdevs
);
41 static void usage(int exit_code
);
47 main(int ac
, char **av
)
54 while ((ch
= getopt(ac
, av
, "hf:rv")) != -1) {
80 if (strcmp(av
[0], "now") == 0) {
81 hammer_parsetime(&tid
, "0s");
82 printf("0x%08x\n", (int)(tid
/ 1000000000LL));
85 if (strcmp(av
[0], "stamp") == 0) {
88 hammer_parsetime(&tid
, av
[1]);
89 printf("0x%08x\n", (int)(tid
/ 1000000000LL));
92 if (strcmp(av
[0], "namekey") == 0) {
97 key
= (int64_t)(crc32(av
[1], strlen(av
[1])) & 0x7FFFFFFF) << 32;
100 printf("0x%016llx\n", key
);
103 if (strcmp(av
[0], "namekey32") == 0) {
108 key
= crc32(av
[1], strlen(av
[1])) & 0x7FFFFFFF;
111 printf("0x%08x\n", key
);
114 if (strcmp(av
[0], "prune") == 0) {
115 hammer_cmd_prune(av
+ 1, ac
- 1);
119 if (strncmp(av
[0], "history", 7) == 0) {
120 hammer_cmd_history(av
[0] + 7, av
+ 1, ac
- 1);
124 uuid_name_lookup(&Hammer_FSType
, "DragonFly HAMMER", &status
);
125 if (status
!= uuid_s_ok
) {
126 errx(1, "uuids file does not have the DragonFly "
127 "HAMMER filesystem type");
130 if (strcmp(av
[0], "show") == 0) {
131 hammer_off_t node_offset
= (hammer_off_t
)-1;
133 hammer_parsedevs(blkdevs
);
135 sscanf(av
[1], "%llx", &node_offset
);
136 hammer_cmd_show(node_offset
, 0, NULL
, NULL
);
145 * Parse a timestamp for the mount point
152 hammer_parsetime(u_int64_t
*tidp
, const char *timestr
)
165 if (isalpha(timestr
[strlen(timestr
)-1])) {
166 if (sscanf(timestr
, "%d%c", &n
, &c
) != 2)
192 localtime_r(&t
, &tm
);
193 seconds
= (double)tm
.tm_sec
;
196 n
= sscanf(timestr
, "%4d%2d%2d:%2d%2d%lf",
197 &tm
.tm_year
, &tm
.tm_mon
, &tm
.tm_mday
,
198 &tm
.tm_hour
, &tm
.tm_min
, &seconds
);
201 /* if [:hhmmss] is omitted, assume :000000.0 */
203 tm
.tm_hour
= tm
.tm_min
= tm
.tm_sec
= 0;
205 tm
.tm_sec
= (int)seconds
;
208 *tidp
= (u_int64_t
)t
* 1000000000 +
209 (seconds
- (int)seconds
) * 1000000000;
214 hammer_parsedevs(const char *blkdevs
)
219 if (blkdevs
== NULL
) {
220 errx(1, "A -f blkdevs specification is required "
224 copy
= strdup(blkdevs
);
225 while ((volname
= copy
) != NULL
) {
226 if ((copy
= strchr(copy
, ':')) != NULL
)
228 setup_volume(-1, volname
, 0, O_RDONLY
);
239 "hammer stamp <time>\n"
240 "hammer prune <filesystem> [using <configfile>]\n"
241 "hammer prune <filesystem> from <modulo_time> to <modulo_time> every <modulo_time>\n"
242 "hammer history[@offset[,len]] <file-1>...<file-N>\n"
243 "hammer -f blkdevs [-r] show [vol_no[:clu_no]]\n"
245 fprintf(stderr
, "time: +n[s/m/h/D/M/Y]\n"
246 "time: yyyymmdd[:hhmmss]\n"
247 "modulo_time: n{s,m,h,d,M,y}\n");