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);
58 u_int64_t BandwidthOpt;
59 const char *CyclePath;
63 main(int ac, char **av)
71 while ((ch = getopt(ac, av, "b:c:dhf:i:qrs:t:v2yC:F")) != -1) {
80 BandwidthOpt = strtoull(optarg, &ptr, 0);
95 /* bytes per second if no suffix */
111 DelayOpt = strtol(optarg, NULL, 0);
123 TimeoutOpt = strtol(optarg, NULL, 0);
138 cacheSize = strtol(optarg, &ptr, 0);
151 /* bytes if no suffix */
157 UseReadAhead = strtol(ptr + 1, NULL, 0);
158 UseReadBehind = -UseReadAhead;
160 if (cacheSize < 1024 * 1024)
161 cacheSize = 1024 * 1024;
162 if (UseReadAhead < 0)
164 if (UseReadAhead * HAMMER_BUFSIZE / cacheSize / 16) {
165 UseReadAhead = cacheSize / 16 / HAMMER_BUFSIZE;
166 UseReadBehind = -UseReadAhead;
168 hammer_cache_set(cacheSize);
185 signal(SIGALRM, sigalrm);
186 signal(SIGINT, sigintr);
188 if (strcmp(av[0], "synctid") == 0) {
189 hammer_cmd_synctid(av + 1, ac - 1);
192 if (strcmp(av[0], "namekey2") == 0) {
196 const char *aname = av[1];
201 key = (u_int32_t)crc32(aname, len) & 0xFFFFFFFEU;
205 crcx = crc32(aname + 3, len - 5);
206 crcx = crcx ^ (crcx >> 6) ^ (crcx >> 12);
207 key |= (int64_t)(crcx & 0x3F) << 42;
213 key |= ((int64_t)(aname[2] & 0x1F) << 48);
216 key |= ((int64_t)(aname[1] & 0x1F) << 53) |
217 ((int64_t)(aname[len-2] & 0x1F) << 37);
220 key |= ((int64_t)(aname[0] & 0x1F) << 58) |
221 ((int64_t)(aname[len-1] & 0x1F) << 32);
227 key |= 0x100000000LL;
228 printf("0x%016llx\n", key);
231 if (strcmp(av[0], "namekey1") == 0) {
236 key = (int64_t)(crc32(av[1], strlen(av[1])) & 0x7FFFFFFF) << 32;
238 key |= 0x100000000LL;
239 printf("0x%016llx\n", key);
242 if (strcmp(av[0], "namekey32") == 0) {
247 key = crc32(av[1], strlen(av[1])) & 0x7FFFFFFF;
250 printf("0x%08x\n", key);
253 if (strcmp(av[0], "pfs-status") == 0) {
254 hammer_cmd_pseudofs_status(av + 1, ac - 1);
257 if (strcmp(av[0], "pfs-master") == 0) {
258 hammer_cmd_pseudofs_create(av + 1, ac - 1, 0);
261 if (strcmp(av[0], "pfs-slave") == 0) {
262 hammer_cmd_pseudofs_create(av + 1, ac - 1, 1);
265 if (strcmp(av[0], "pfs-update") == 0) {
266 hammer_cmd_pseudofs_update(av + 1, ac - 1);
269 if (strcmp(av[0], "pfs-upgrade") == 0) {
270 hammer_cmd_pseudofs_upgrade(av + 1, ac - 1);
273 if (strcmp(av[0], "pfs-downgrade") == 0) {
274 hammer_cmd_pseudofs_downgrade(av + 1, ac - 1);
277 if (strcmp(av[0], "pfs-destroy") == 0) {
278 hammer_cmd_pseudofs_destroy(av + 1, ac - 1);
281 if (strcmp(av[0], "status") == 0) {
282 hammer_cmd_status(av + 1, ac - 1);
285 if (strcmp(av[0], "prune") == 0) {
286 hammer_cmd_softprune(av + 1, ac - 1, 0);
289 if (strcmp(av[0], "cleanup") == 0) {
290 hammer_cmd_cleanup(av + 1, ac - 1);
293 if (strcmp(av[0], "info") == 0) {
294 hammer_cmd_info(ac - 1);
297 if (strcmp(av[0], "prune-everything") == 0) {
298 hammer_cmd_softprune(av + 1, ac - 1, 1);
301 if (strcmp(av[0], "snapshot") == 0) {
302 hammer_cmd_snapshot(av + 1, ac - 1);
305 if (strcmp(av[0], "bstats") == 0) {
306 hammer_cmd_bstats(av + 1, ac - 1);
309 if (strcmp(av[0], "iostats") == 0) {
310 hammer_cmd_iostats(av + 1, ac - 1);
314 if (strncmp(av[0], "history", 7) == 0) {
315 hammer_cmd_history(av[0] + 7, av + 1, ac - 1);
318 if (strcmp(av[0], "rebalance") == 0) {
319 signal(SIGINT, sigalrm);
320 hammer_cmd_rebalance(av + 1, ac - 1);
323 if (strncmp(av[0], "reblock", 7) == 0) {
324 signal(SIGINT, sigalrm);
325 if (strcmp(av[0], "reblock") == 0)
326 hammer_cmd_reblock(av + 1, ac - 1, -1);
327 else if (strcmp(av[0], "reblock-btree") == 0)
328 hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_BTREE);
329 else if (strcmp(av[0], "reblock-inodes") == 0)
330 hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_INODES);
331 else if (strcmp(av[0], "reblock-dirs") == 0)
332 hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DIRS);
333 else if (strcmp(av[0], "reblock-data") == 0)
334 hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DATA);
339 if (strncmp(av[0], "mirror", 6) == 0) {
340 if (strcmp(av[0], "mirror-read") == 0)
341 hammer_cmd_mirror_read(av + 1, ac - 1, 0);
342 else if (strcmp(av[0], "mirror-read-stream") == 0)
343 hammer_cmd_mirror_read(av + 1, ac - 1, 1);
344 else if (strcmp(av[0], "mirror-write") == 0)
345 hammer_cmd_mirror_write(av + 1, ac - 1);
346 else if (strcmp(av[0], "mirror-copy") == 0)
347 hammer_cmd_mirror_copy(av + 1, ac - 1, 0);
348 else if (strcmp(av[0], "mirror-stream") == 0)
349 hammer_cmd_mirror_copy(av + 1, ac - 1, 1);
350 else if (strcmp(av[0], "mirror-dump") == 0)
351 hammer_cmd_mirror_dump();
356 if (strcmp(av[0], "version") == 0) {
357 hammer_cmd_get_version(av + 1, ac - 1);
360 if (strcmp(av[0], "version-upgrade") == 0) {
361 hammer_cmd_set_version(av + 1, ac - 1);
364 if (strcmp(av[0], "expand") == 0) {
365 hammer_cmd_expand(av + 1, ac - 1);
369 uuid_name_lookup(&Hammer_FSType, "DragonFly HAMMER", &status);
370 if (status != uuid_s_ok) {
371 errx(1, "uuids file does not have the DragonFly "
372 "HAMMER filesystem type");
375 if (strcmp(av[0], "show") == 0) {
377 int64_t obj_id = (int64_t)HAMMER_MIN_OBJID;
379 hammer_parsedevs(blkdevs);
381 sscanf(av[1], "%08x:%llx", &lo, &obj_id);
382 hammer_cmd_show(-1, lo, obj_id, 0, NULL, NULL);
385 if (strcmp(av[0], "blockmap") == 0) {
386 hammer_parsedevs(blkdevs);
387 hammer_cmd_blockmap();
396 * Parse the device specification.
398 * Multi-volume hammer devices are colon-separated. Each element
399 * may be further expanded via /etc/devtab. One may also specify
400 * a single element which is expanded into multiple elements via
405 hammer_parsedevs(const char *blkdevs)
410 if (blkdevs == NULL) {
411 errx(1, "A -f blkdev[:blkdev]* specification is required "
415 copy = strdup(blkdevs);
416 while ((volname = copy) != NULL) {
417 if ((copy = strchr(copy, ':')) != NULL)
419 volname = getdevpath(volname, 0);
420 if (strchr(volname, ':'))
421 hammer_parsedevs(volname);
423 setup_volume(-1, volname, 0, O_RDONLY);
429 sigalrm(int signo __unused)
431 /* do nothing (interrupts HAMMER ioctl) */
436 sigintr(int signo __unused)
438 if (RunningIoctl == 0)
441 /* do nothing (interrupts HAMMER ioctl) */
450 "hammer [-2qrvy] [-b bandwidth] [-c cyclefile] [-f blkdev[:blkdev]*]\n"
451 " [-i delay ] [-t seconds] command [argument ...]\n"
452 "hammer synctid <filesystem> [quick]\n"
453 "hammer -f blkdev[:blkdev]* blockmap\n"
454 "hammer bstats [interval]\n"
455 "hammer iostats [interval]\n"
456 "hammer history[@offset[,len]] <file> ...\n"
457 "hammer -f blkdev[:blkdev]* [-r] [-vvv] show [offset]\n"
459 "hammer -f blkdev[:blkdev]* blockmap\n"
461 "hammer namekey1 <path>\n"
462 "hammer namekey2 <path>\n"
463 "hammer cleanup [<filesystem> ...]\n"
465 "hammer snapshot [<filesystem>] <snapshot-dir>\n"
466 "hammer prune <softlink-dir>\n"
467 "hammer prune-everything <filesystem>\n"
468 "hammer rebalance <filesystem> [saturation_percentage]\n"
469 "hammer reblock[-btree/inodes/dirs/data] "
470 "<filesystem> [fill_percentage]\n"
471 "hammer pfs-status <dirpath> ...\n"
472 "hammer pfs-master <dirpath> [options]\n"
473 "hammer pfs-slave <dirpath> [options]\n"
474 "hammer pfs-update <dirpath> [options]\n"
475 "hammer pfs-upgrade <dirpath>\n"
476 "hammer pfs-downgrade <dirpath>\n"
477 "hammer pfs-destroy <dirpath>\n"
478 "hammer mirror-read <filesystem> [begin-tid]\n"
479 "hammer mirror-read-stream <filesystem> [begin-tid]\n"
480 "hammer mirror-write <filesystem>\n"
481 "hammer mirror-dump\n"
482 "hammer mirror-copy [[user@]host:]<filesystem>"
483 " [[user@]host:]<filesystem>\n"
484 "hammer mirror-stream [[user@]host:]<filesystem>"
485 " [[user@]host:]<filesystem>\n"
486 "hammer version <filesystem>\n"
487 "hammer version-upgrade <filesystem> version# [force]\n"
488 "hammer expand <filesystem> <device>\n"