Merge branch 'vendor/OPENSSH'
[dragonfly.git] / sbin / hammer / hammer.c
1 /*
2  * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
3  * 
4  * This code is derived from software contributed to The DragonFly Project
5  * by Matthew Dillon <dillon@backplane.com>
6  * 
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 
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
16  *    distribution.
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.
20  * 
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
32  * SUCH DAMAGE.
33  * 
34  * $DragonFly: src/sbin/hammer/hammer.c,v 1.44 2008/11/13 02:04:27 dillon Exp $
35  */
36
37 #include "hammer.h"
38 #include <signal.h>
39 #include <math.h>
40
41 static void hammer_parsedevs(const char *blkdevs);
42 static void sigalrm(int signo);
43 static void sigintr(int signo);
44 static void usage(int exit_code);
45
46 int RecurseOpt;
47 int VerboseOpt;
48 int QuietOpt;
49 int NoSyncOpt;
50 int TwoWayPipeOpt;
51 int TimeoutOpt;
52 int DelayOpt = 5;
53 int ForceYesOpt = 0;
54 int RunningIoctl;
55 int DidInterrupt;
56 u_int64_t BandwidthOpt;
57 const char *CyclePath;
58 const char *LinkPath;
59
60 int
61 main(int ac, char **av)
62 {
63         char *blkdevs = NULL;
64         char *ptr;
65         u_int32_t status;
66         int ch;
67         int cacheSize = 0;
68
69         while ((ch = getopt(ac, av, "b:c:dhf:i:qrs:t:v2yC:")) != -1) {
70                 switch(ch) {
71                 case '2':
72                         TwoWayPipeOpt = 1;
73                         break;
74                 case 'y':
75                         ForceYesOpt = 1;
76                         break;
77                 case 'b':
78                         BandwidthOpt = strtoull(optarg, &ptr, 0);
79                         switch(*ptr) {
80                         case 'g':
81                         case 'G':
82                                 BandwidthOpt *= 1024;
83                                 /* fall through */
84                         case 'm':
85                         case 'M':
86                                 BandwidthOpt *= 1024;
87                                 /* fall through */
88                         case 'k':
89                         case 'K':
90                                 BandwidthOpt *= 1024;
91                                 break;
92                         case '\0':
93                                 /* bytes per second if no suffix */
94                                 break;
95                         default:
96                                 usage(1);
97                         }
98                         break;
99                 case 'c':
100                         CyclePath = optarg;
101                         break;
102                 case 'd':
103                         ++DebugOpt;
104                         break;
105                 case 'h':
106                         usage(0);
107                         /* not reached */
108                 case 'i':
109                         DelayOpt = strtol(optarg, NULL, 0);
110                         break;
111                 case 'r':
112                         RecurseOpt = 1;
113                         break;
114                 case 'f':
115                         blkdevs = optarg;
116                         break;
117                 case 's':
118                         LinkPath = optarg;
119                         break;
120                 case 't':
121                         TimeoutOpt = strtol(optarg, NULL, 0);
122                         break;
123                 case 'v':
124                         if (QuietOpt > 0)
125                                 --QuietOpt;
126                         else
127                                 ++VerboseOpt;
128                         break;
129                 case 'q':
130                         if (VerboseOpt > 0)
131                                 --VerboseOpt;
132                         else
133                                 ++QuietOpt;
134                         break;
135                 case 'C':
136                         cacheSize = strtol(optarg, &ptr, 0);
137                         switch(*ptr) {
138                         case 'm':
139                         case 'M':
140                                 cacheSize *= 1024;
141                                 /* fall through */
142                         case 'k':
143                         case 'K':
144                                 cacheSize *= 1024;
145                                 break;
146                         case '\0':
147                                 /* bytes if no suffix */
148                                 break;
149                         default:
150                                 usage(1);
151                         }
152                         if (cacheSize < 1024 * 1024)
153                                 cacheSize = 1024 * 1024;
154                         hammer_cache_set(cacheSize);
155                         break;
156                 default:
157                         usage(1);
158                         /* not reached */
159                 }
160         }
161         ac -= optind;
162         av += optind;
163         if (ac < 1) {
164                 usage(1);
165                 /* not reached */
166         }
167
168         signal(SIGALRM, sigalrm);
169         signal(SIGINT, sigintr);
170
171         if (strcmp(av[0], "synctid") == 0) {
172                 hammer_cmd_synctid(av + 1, ac - 1);
173                 exit(0);
174         }
175         if (strcmp(av[0], "namekey2") == 0) {
176                 int64_t key;
177                 int32_t crcx;
178                 int len;
179                 const char *aname = av[1];
180
181                 if (aname == NULL)
182                         usage(1);
183                 len = strlen(aname);
184                 key = (u_int32_t)crc32(aname, len) & 0xFFFFFFFEU;
185
186                 switch(len) {
187                 default:
188                         crcx = crc32(aname + 3, len - 5);
189                         crcx = crcx ^ (crcx >> 6) ^ (crcx >> 12);
190                         key |= (int64_t)(crcx & 0x3F) << 42;
191                         /* fall through */
192                 case 5:
193                 case 4:
194                         /* fall through */
195                 case 3:
196                         key |= ((int64_t)(aname[2] & 0x1F) << 48);
197                         /* fall through */
198                 case 2:
199                         key |= ((int64_t)(aname[1] & 0x1F) << 53) |
200                                ((int64_t)(aname[len-2] & 0x1F) << 37);
201                         /* fall through */
202                 case 1:
203                         key |= ((int64_t)(aname[0] & 0x1F) << 58) |
204                                ((int64_t)(aname[len-1] & 0x1F) << 32);
205                         /* fall through */
206                 case 0:
207                         break;
208                 }
209                 if (key == 0)
210                         key |= 0x100000000LL;
211                 printf("0x%016llx\n", key);
212                 exit(0);
213         }
214         if (strcmp(av[0], "namekey1") == 0) {
215                 int64_t key;
216
217                 if (av[1] == NULL)
218                         usage(1);
219                 key = (int64_t)(crc32(av[1], strlen(av[1])) & 0x7FFFFFFF) << 32;
220                 if (key == 0)
221                         key |= 0x100000000LL;
222                 printf("0x%016llx\n", key);
223                 exit(0);
224         }
225         if (strcmp(av[0], "namekey32") == 0) {
226                 int32_t key;
227
228                 if (av[1] == NULL)
229                         usage(1);
230                 key = crc32(av[1], strlen(av[1])) & 0x7FFFFFFF;
231                 if (key == 0)
232                         ++key;
233                 printf("0x%08x\n", key);
234                 exit(0);
235         }
236         if (strcmp(av[0], "pfs-status") == 0) {
237                 hammer_cmd_pseudofs_status(av + 1, ac - 1);
238                 exit(0);
239         }
240         if (strcmp(av[0], "pfs-master") == 0) {
241                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 0);
242                 exit(0);
243         }
244         if (strcmp(av[0], "pfs-slave") == 0) {
245                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 1);
246                 exit(0);
247         }
248         if (strcmp(av[0], "pfs-update") == 0) {
249                 hammer_cmd_pseudofs_update(av + 1, ac - 1);
250                 exit(0);
251         }
252         if (strcmp(av[0], "pfs-upgrade") == 0) {
253                 hammer_cmd_pseudofs_upgrade(av + 1, ac - 1);
254                 exit(0);
255         }
256         if (strcmp(av[0], "pfs-downgrade") == 0) {
257                 hammer_cmd_pseudofs_downgrade(av + 1, ac - 1);
258                 exit(0);
259         }
260         if (strcmp(av[0], "pfs-destroy") == 0) {
261                 hammer_cmd_pseudofs_destroy(av + 1, ac - 1);
262                 exit(0);
263         }
264         if (strcmp(av[0], "status") == 0) {
265                 hammer_cmd_status(av + 1, ac - 1);
266                 exit(0);
267         }
268         if (strcmp(av[0], "prune") == 0) {
269                 hammer_cmd_softprune(av + 1, ac - 1, 0);
270                 exit(0);
271         }
272         if (strcmp(av[0], "cleanup") == 0) {
273                 hammer_cmd_cleanup(av + 1, ac - 1);
274                 exit(0);
275         }
276         if (strcmp(av[0], "prune-everything") == 0) {
277                 hammer_cmd_softprune(av + 1, ac - 1, 1);
278                 exit(0);
279         }
280         if (strcmp(av[0], "snapshot") == 0) {
281                 hammer_cmd_snapshot(av + 1, ac - 1);
282                 exit(0);
283         }
284         if (strcmp(av[0], "bstats") == 0) {
285                 hammer_cmd_bstats(av + 1, ac - 1);
286                 exit(0);
287         }
288         if (strcmp(av[0], "iostats") == 0) {
289                 hammer_cmd_iostats(av + 1, ac - 1);
290                 exit(0);
291         }
292
293         if (strncmp(av[0], "history", 7) == 0) {
294                 hammer_cmd_history(av[0] + 7, av + 1, ac - 1);
295                 exit(0);
296         }
297         if (strcmp(av[0], "rebalance") == 0) {
298                 signal(SIGINT, sigalrm);
299                 hammer_cmd_rebalance(av + 1, ac - 1);
300                 exit(0);
301         }
302         if (strncmp(av[0], "reblock", 7) == 0) {
303                 signal(SIGINT, sigalrm);
304                 if (strcmp(av[0], "reblock") == 0)
305                         hammer_cmd_reblock(av + 1, ac - 1, -1);
306                 else if (strcmp(av[0], "reblock-btree") == 0)
307                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_BTREE);
308                 else if (strcmp(av[0], "reblock-inodes") == 0)
309                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_INODES);
310                 else if (strcmp(av[0], "reblock-dirs") == 0)
311                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DIRS);
312                 else if (strcmp(av[0], "reblock-data") == 0)
313                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DATA);
314                 else
315                         usage(1);
316                 exit(0);
317         }
318         if (strncmp(av[0], "mirror", 6) == 0) {
319                 if (strcmp(av[0], "mirror-read") == 0)
320                         hammer_cmd_mirror_read(av + 1, ac - 1, 0);
321                 else if (strcmp(av[0], "mirror-read-stream") == 0)
322                         hammer_cmd_mirror_read(av + 1, ac - 1, 1);
323                 else if (strcmp(av[0], "mirror-write") == 0)
324                         hammer_cmd_mirror_write(av + 1, ac - 1);
325                 else if (strcmp(av[0], "mirror-copy") == 0)
326                         hammer_cmd_mirror_copy(av + 1, ac - 1, 0);
327                 else if (strcmp(av[0], "mirror-stream") == 0)
328                         hammer_cmd_mirror_copy(av + 1, ac - 1, 1);
329                 else if (strcmp(av[0], "mirror-dump") == 0)
330                         hammer_cmd_mirror_dump();
331                 else
332                         usage(1);
333                 exit(0);
334         }
335         if (strcmp(av[0], "version") == 0) {
336                 hammer_cmd_get_version(av + 1, ac - 1);
337                 exit(0);
338         }
339         if (strcmp(av[0], "version-upgrade") == 0) {
340                 hammer_cmd_set_version(av + 1, ac - 1);
341                 exit(0);
342         }
343
344         uuid_name_lookup(&Hammer_FSType, "DragonFly HAMMER", &status);
345         if (status != uuid_s_ok) {
346                 errx(1, "uuids file does not have the DragonFly "
347                         "HAMMER filesystem type");
348         }
349
350         if (strcmp(av[0], "show") == 0) {
351                 hammer_off_t node_offset = (hammer_off_t)-1;
352
353                 hammer_parsedevs(blkdevs);
354                 if (ac > 1)
355                         sscanf(av[1], "%llx", &node_offset);
356                 hammer_cmd_show(node_offset, 0, NULL, NULL);
357                 exit(0);
358         }
359         if (strcmp(av[0], "blockmap") == 0) {
360                 hammer_parsedevs(blkdevs);
361                 hammer_cmd_blockmap();
362                 exit(0);
363         }
364         usage(1);
365         /* not reached */
366         return(0);
367 }
368
369 static
370 void
371 hammer_parsedevs(const char *blkdevs)
372 {
373         char *copy;
374         char *volname;
375
376         if (blkdevs == NULL) {
377                 errx(1, "A -f blkdev[:blkdev]* specification is required "
378                         "for this command");
379         }
380
381         copy = strdup(blkdevs);
382         while ((volname = copy) != NULL) {
383                 if ((copy = strchr(copy, ':')) != NULL)
384                         *copy++ = 0;
385                 setup_volume(-1, volname, 0, O_RDONLY);
386         }
387 }
388
389 static
390 void
391 sigalrm(int signo __unused)
392 {
393         /* do nothing (interrupts HAMMER ioctl) */
394 }
395
396 static
397 void
398 sigintr(int signo __unused)
399 {
400         if (RunningIoctl == 0)
401                 _exit(1);
402         DidInterrupt = 1;
403         /* do nothing (interrupts HAMMER ioctl) */
404 }
405
406 static
407 void
408 usage(int exit_code)
409 {
410         fprintf(stderr, 
411                 "hammer -h\n"
412                 "hammer [-2qrvy] [-b bandwidth] [-c cyclefile] [-f blkdev[:blkdev]*]\n"
413                 "       [-i delay ] [-t seconds] command [argument ...]\n"
414                 "hammer synctid <filesystem> [quick]\n"
415                 "hammer -f blkdev[:blkdev]* blockmap\n"
416                 "hammer bstats [interval]\n"
417                 "hammer iostats [interval]\n"
418                 "hammer history[@offset[,len]] <file> ...\n"
419                 "hammer -f blkdev[:blkdev]* [-r] [-vvv] show [offset]\n"
420 #if 0
421                 "hammer -f blkdev[:blkdev]* blockmap\n"
422 #endif
423                 "hammer namekey1 <path>\n"
424                 "hammer namekey2 <path>\n"
425                 "hammer cleanup [<filesystem> ...]\n"
426                 "hammer snapshot [<filesystem>] <snapshot-dir>\n"
427                 "hammer prune <softlink-dir>\n"
428                 "hammer prune-everything <filesystem>\n"
429                 "hammer rebalance <filesystem> [saturation_percentage]\n"
430                 "hammer reblock[-btree/inodes/dirs/data] "
431                         "<filesystem> [fill_percentage]\n"
432                 "hammer pfs-status <dirpath> ...\n"
433                 "hammer pfs-master <dirpath> [options]\n"
434                 "hammer pfs-slave <dirpath> [options]\n"
435                 "hammer pfs-update <dirpath> [options]\n"
436                 "hammer pfs-upgrade <dirpath>\n"
437                 "hammer pfs-downgrade <dirpath>\n"
438                 "hammer pfs-destroy <dirpath>\n"
439                 "hammer mirror-read <filesystem> [begin-tid]\n"
440                 "hammer mirror-read-stream <filesystem> [begin-tid]\n"
441                 "hammer mirror-write <filesystem>\n"
442                 "hammer mirror-dump\n"
443                 "hammer mirror-copy [[user@]host:]<filesystem>"
444                                   " [[user@]host:]<filesystem>\n"
445                 "hammer mirror-stream [[user@]host:]<filesystem>"
446                                     " [[user@]host:]<filesystem>\n"
447                 "hammer version <filesystem>\n"
448                 "hammer version-upgrade <filesystem> version# [force]\n"
449         );
450         exit(exit_code);
451 }
452