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 1.44 2008/11/13 02:04:27 dillon Exp $
42 static void hammer_parsedevs(const char *blkdevs
);
43 static void sigalrm(int signo
);
44 static void sigintr(int signo
);
45 static void usage(int exit_code
);
59 u_int64_t BandwidthOpt
;
60 const char *CyclePath
;
64 main(int ac
, char **av
)
72 while ((ch
= getopt(ac
, av
, "b:c:dhf:i:qrs:t:v2yBC:F")) != -1) {
81 BandwidthOpt
= strtoull(optarg
, &ptr
, 0);
96 /* bytes per second if no suffix */
112 DelayOpt
= strtol(optarg
, NULL
, 0);
124 TimeoutOpt
= strtol(optarg
, NULL
, 0);
142 cacheSize
= strtol(optarg
, &ptr
, 0);
155 /* bytes if no suffix */
161 UseReadAhead
= strtol(ptr
+ 1, NULL
, 0);
162 UseReadBehind
= -UseReadAhead
;
164 if (cacheSize
< 1024 * 1024)
165 cacheSize
= 1024 * 1024;
166 if (UseReadAhead
< 0)
168 if (UseReadAhead
* HAMMER_BUFSIZE
/ cacheSize
/ 16) {
169 UseReadAhead
= cacheSize
/ 16 / HAMMER_BUFSIZE
;
170 UseReadBehind
= -UseReadAhead
;
172 hammer_cache_set(cacheSize
);
189 signal(SIGALRM
, sigalrm
);
190 signal(SIGINT
, sigintr
);
192 if (strcmp(av
[0], "synctid") == 0) {
193 hammer_cmd_synctid(av
+ 1, ac
- 1);
196 if (strcmp(av
[0], "namekey2") == 0) {
200 const char *aname
= av
[1];
205 key
= (u_int32_t
)crc32(aname
, len
) & 0xFFFFFFFEU
;
209 crcx
= crc32(aname
+ 3, len
- 5);
210 crcx
= crcx
^ (crcx
>> 6) ^ (crcx
>> 12);
211 key
|= (int64_t)(crcx
& 0x3F) << 42;
217 key
|= ((int64_t)(aname
[2] & 0x1F) << 48);
220 key
|= ((int64_t)(aname
[1] & 0x1F) << 53) |
221 ((int64_t)(aname
[len
-2] & 0x1F) << 37);
224 key
|= ((int64_t)(aname
[0] & 0x1F) << 58) |
225 ((int64_t)(aname
[len
-1] & 0x1F) << 32);
231 key
|= 0x100000000LL
;
232 printf("0x%016jx\n", (uintmax_t)key
);
235 if (strcmp(av
[0], "namekey1") == 0) {
240 key
= (int64_t)(crc32(av
[1], strlen(av
[1])) & 0x7FFFFFFF) << 32;
242 key
|= 0x100000000LL
;
243 printf("0x%016jx\n", (uintmax_t)key
);
246 if (strcmp(av
[0], "namekey32") == 0) {
251 key
= crc32(av
[1], strlen(av
[1])) & 0x7FFFFFFF;
254 printf("0x%08x\n", key
);
257 if (strcmp(av
[0], "pfs-status") == 0) {
258 hammer_cmd_pseudofs_status(av
+ 1, ac
- 1);
261 if (strcmp(av
[0], "pfs-master") == 0) {
262 hammer_cmd_pseudofs_create(av
+ 1, ac
- 1, 0);
265 if (strcmp(av
[0], "pfs-slave") == 0) {
266 hammer_cmd_pseudofs_create(av
+ 1, ac
- 1, 1);
269 if (strcmp(av
[0], "pfs-update") == 0) {
270 hammer_cmd_pseudofs_update(av
+ 1, ac
- 1);
273 if (strcmp(av
[0], "pfs-upgrade") == 0) {
274 hammer_cmd_pseudofs_upgrade(av
+ 1, ac
- 1);
277 if (strcmp(av
[0], "pfs-downgrade") == 0) {
278 hammer_cmd_pseudofs_downgrade(av
+ 1, ac
- 1);
281 if (strcmp(av
[0], "pfs-destroy") == 0) {
282 hammer_cmd_pseudofs_destroy(av
+ 1, ac
- 1);
285 if (strcmp(av
[0], "status") == 0) {
286 hammer_cmd_status(av
+ 1, ac
- 1);
289 if (strcmp(av
[0], "prune") == 0) {
290 hammer_cmd_softprune(av
+ 1, ac
- 1, 0);
293 if (strcmp(av
[0], "cleanup") == 0) {
294 hammer_cmd_cleanup(av
+ 1, ac
- 1);
297 if (strcmp(av
[0], "info") == 0) {
301 if (strcmp(av
[0], "prune-everything") == 0) {
302 hammer_cmd_softprune(av
+ 1, ac
- 1, 1);
305 if (strcmp(av
[0], "snapshot") == 0) {
306 hammer_cmd_snapshot(av
+ 1, ac
- 1);
309 if (strcmp(av
[0], "bstats") == 0) {
310 hammer_cmd_bstats(av
+ 1, ac
- 1);
313 if (strcmp(av
[0], "iostats") == 0) {
314 hammer_cmd_iostats(av
+ 1, ac
- 1);
318 if (strncmp(av
[0], "history", 7) == 0) {
319 hammer_cmd_history(av
[0] + 7, av
+ 1, ac
- 1);
322 if (strcmp(av
[0], "rebalance") == 0) {
323 signal(SIGINT
, sigalrm
);
324 hammer_cmd_rebalance(av
+ 1, ac
- 1);
327 if (strncmp(av
[0], "reblock", 7) == 0) {
328 signal(SIGINT
, sigalrm
);
329 if (strcmp(av
[0], "reblock") == 0)
330 hammer_cmd_reblock(av
+ 1, ac
- 1, -1);
331 else if (strcmp(av
[0], "reblock-btree") == 0)
332 hammer_cmd_reblock(av
+ 1, ac
- 1, HAMMER_IOC_DO_BTREE
);
333 else if (strcmp(av
[0], "reblock-inodes") == 0)
334 hammer_cmd_reblock(av
+ 1, ac
- 1, HAMMER_IOC_DO_INODES
);
335 else if (strcmp(av
[0], "reblock-dirs") == 0)
336 hammer_cmd_reblock(av
+ 1, ac
- 1, HAMMER_IOC_DO_DIRS
);
337 else if (strcmp(av
[0], "reblock-data") == 0)
338 hammer_cmd_reblock(av
+ 1, ac
- 1, HAMMER_IOC_DO_DATA
);
343 if (strncmp(av
[0], "mirror", 6) == 0) {
344 if (strcmp(av
[0], "mirror-read") == 0)
345 hammer_cmd_mirror_read(av
+ 1, ac
- 1, 0);
346 else if (strcmp(av
[0], "mirror-read-stream") == 0)
347 hammer_cmd_mirror_read(av
+ 1, ac
- 1, 1);
348 else if (strcmp(av
[0], "mirror-write") == 0)
349 hammer_cmd_mirror_write(av
+ 1, ac
- 1);
350 else if (strcmp(av
[0], "mirror-copy") == 0)
351 hammer_cmd_mirror_copy(av
+ 1, ac
- 1, 0);
352 else if (strcmp(av
[0], "mirror-stream") == 0)
353 hammer_cmd_mirror_copy(av
+ 1, ac
- 1, 1);
354 else if (strcmp(av
[0], "mirror-dump") == 0)
355 hammer_cmd_mirror_dump();
360 if (strcmp(av
[0], "version") == 0) {
361 hammer_cmd_get_version(av
+ 1, ac
- 1);
364 if (strcmp(av
[0], "version-upgrade") == 0) {
365 hammer_cmd_set_version(av
+ 1, ac
- 1);
368 if (strcmp(av
[0], "expand") == 0) {
369 hammer_cmd_expand(av
+ 1, ac
- 1);
373 uuid_name_lookup(&Hammer_FSType
, "DragonFly HAMMER", &status
);
374 if (status
!= uuid_s_ok
) {
375 errx(1, "uuids file does not have the DragonFly "
376 "HAMMER filesystem type");
379 if (strcmp(av
[0], "show") == 0) {
381 intmax_t obj_id
= (int64_t)HAMMER_MIN_OBJID
;
383 hammer_parsedevs(blkdevs
);
385 sscanf(av
[1], "%08x:%jx", &lo
, &obj_id
);
386 hammer_cmd_show(-1, lo
, (int64_t)obj_id
, 0, NULL
, NULL
);
389 if (strcmp(av
[0], "blockmap") == 0) {
390 hammer_parsedevs(blkdevs
);
391 hammer_cmd_blockmap();
400 * Parse the device specification.
402 * Multi-volume hammer devices are colon-separated. Each element
403 * may be further expanded via /etc/devtab. One may also specify
404 * a single element which is expanded into multiple elements via
409 hammer_parsedevs(const char *blkdevs
)
414 if (blkdevs
== NULL
) {
415 errx(1, "A -f blkdev[:blkdev]* specification is required "
419 copy
= strdup(blkdevs
);
420 while ((volname
= copy
) != NULL
) {
421 if ((copy
= strchr(copy
, ':')) != NULL
)
423 volname
= getdevpath(volname
, 0);
424 if (strchr(volname
, ':'))
425 hammer_parsedevs(volname
);
427 setup_volume(-1, volname
, 0, O_RDONLY
);
433 sigalrm(int signo __unused
)
435 /* do nothing (interrupts HAMMER ioctl) */
440 sigintr(int signo __unused
)
442 if (RunningIoctl
== 0)
445 /* do nothing (interrupts HAMMER ioctl) */
454 "hammer [-2qrvy] [-b bandwidth] [-c cyclefile] [-f blkdev[:blkdev]*]\n"
455 " [-i delay ] [-t seconds] command [argument ...]\n"
456 "hammer synctid <filesystem> [quick]\n"
457 "hammer -f blkdev[:blkdev]* blockmap\n"
458 "hammer bstats [interval]\n"
459 "hammer iostats [interval]\n"
460 "hammer history[@offset[,len]] <file> ...\n"
461 "hammer -f blkdev[:blkdev]* [-r] [-vvv] show [offset]\n"
463 "hammer -f blkdev[:blkdev]* blockmap\n"
465 "hammer namekey1 <path>\n"
466 "hammer namekey2 <path>\n"
467 "hammer cleanup [<filesystem> ...]\n"
469 "hammer snapshot [<filesystem>] <snapshot-dir>\n"
470 "hammer prune <softlink-dir>\n"
471 "hammer prune-everything <filesystem>\n"
472 "hammer rebalance <filesystem> [saturation_percentage]\n"
473 "hammer reblock[-btree/inodes/dirs/data] "
474 "<filesystem> [fill_percentage]\n"
475 "hammer pfs-status <dirpath> ...\n"
476 "hammer pfs-master <dirpath> [options]\n"
477 "hammer pfs-slave <dirpath> [options]\n"
478 "hammer pfs-update <dirpath> [options]\n"
479 "hammer pfs-upgrade <dirpath>\n"
480 "hammer pfs-downgrade <dirpath>\n"
481 "hammer pfs-destroy <dirpath>\n"
482 "hammer mirror-read <filesystem> [begin-tid]\n"
483 "hammer mirror-read-stream <filesystem> [begin-tid]\n"
484 "hammer mirror-write <filesystem>\n"
485 "hammer mirror-dump\n"
486 "hammer mirror-copy [[user@]host:]<filesystem>"
487 " [[user@]host:]<filesystem>\n"
488 "hammer mirror-stream [[user@]host:]<filesystem>"
489 " [[user@]host:]<filesystem>\n"
490 "hammer version <filesystem>\n"
491 "hammer version-upgrade <filesystem> version# [force]\n"
492 "hammer expand <filesystem> <device>\n"