1 /*
2 * Copyright (c) 2004 Lukas Ertl
3 * Copyright (c) 2005 Chris Jones
4 * Copyright (c) 2007 Ulf Lilleengen
5 * All rights reserved.
6 *
7 * Portions of this software were developed for the FreeBSD Project
8 * by Chris Jones thanks to the support of Google's Summer of Code
9 * program and mentoring by Lukas Ertl.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD$
33 */
34
35 #include <sys/param.h>
36 #include <sys/linker.h>
37 #include <sys/lock.h>
38 #include <sys/module.h>
39 #include <sys/mutex.h>
40 #include <sys/queue.h>
41 #include <sys/utsname.h>
42
43 #include <geom/vinum/geom_vinum_var.h>
44 #include <geom/vinum/geom_vinum_share.h>
45
46 #include <ctype.h>
47 #include <err.h>
48 #include <errno.h>
49 #include <libgeom.h>
50 #include <stdint.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 #include <paths.h>
55 #include <readline/readline.h>
56 #include <readline/history.h>
57 #include <unistd.h>
58
59 #include "gvinum.h"
60
61 static void gvinum_attach(int, char * const *);
62 static void gvinum_concat(int, char * const *);
63 static void gvinum_create(int, char * const *);
64 static void gvinum_detach(int, char * const *);
65 static void gvinum_grow(int, char * const *);
66 static void gvinum_help(void);
67 static void gvinum_list(int, char * const *);
68 static void gvinum_move(int, char * const *);
69 static void gvinum_mirror(int, char * const *);
70 static void gvinum_parityop(int, char * const * , int);
71 static void gvinum_printconfig(int, char * const *);
72 static void gvinum_raid5(int, char * const *);
73 static void gvinum_rename(int, char * const *);
74 static void gvinum_resetconfig(int, char * const *);
75 static void gvinum_rm(int, char * const *);
76 static void gvinum_saveconfig(void);
77 static void gvinum_setstate(int, char * const *);
78 static void gvinum_start(int, char * const *);
79 static void gvinum_stop(int, char * const *);
80 static void gvinum_stripe(int, char * const *);
81 static void parseline(int, char * const *);
82 static void printconfig(FILE *, const char *);
83
84 static char *create_drive(const char *);
85 static void create_volume(int, char * const * , const char *);
86 static char *find_name(const char *, int, int);
87 static const char *find_pattern(char *, const char *);
88 static void copy_device(struct gv_drive *, const char *);
89 #define find_drive() \
90 find_name("gvinumdrive", GV_TYPE_DRIVE, GV_MAXDRIVENAME)
91
92 int
main(int argc,char ** argv)93 main(int argc, char **argv)
94 {
95 int line, tokens;
96 char buffer[BUFSIZ], *inputline, *token[GV_MAXARGS];
97
98 /* Load the module if necessary. */
99 if (modfind(GVINUMMOD) < 0) {
100 if (kldload(GVINUMKLD) < 0 && modfind(GVINUMMOD) < 0)
101 err(1, GVINUMKLD ": Kernel module not available");
102 }
103
104 /* Arguments given on the command line. */
105 if (argc > 1) {
106 argc--;
107 argv++;
108 parseline(argc, argv);
109
110 /* Interactive mode. */
111 } else {
112 for (;;) {
113 inputline = readline("gvinum -> ");
114 if (inputline == NULL) {
115 if (ferror(stdin)) {
116 err(1, "can't read input");
117 } else {
118 printf("\n");
119 exit(0);
120 }
121 } else if (*inputline) {
122 add_history(inputline);
123 strcpy(buffer, inputline);
124 free(inputline);
125 line++; /* count the lines */
126 tokens = gv_tokenize(buffer, token, GV_MAXARGS);
127 if (tokens)
128 parseline(tokens, token);
129 }
130 }
131 }
132 exit(0);
133 }
134
135 /* Attach a plex to a volume or a subdisk to a plex. */
136 static void
gvinum_attach(int argc,char * const * argv)137 gvinum_attach(int argc, char * const *argv)
138 {
139 struct gctl_req *req;
140 const char *errstr;
141 int rename;
142 off_t offset;
143
144 rename = 0;
145 offset = -1;
146 if (argc < 3) {
147 warnx("usage:\tattach <subdisk> <plex> [rename] "
148 "[<plexoffset>]\n"
149 "\tattach <plex> <volume> [rename]");
150 return;
151 }
152 if (argc > 3) {
153 if (!strcmp(argv[3], "rename")) {
154 rename = 1;
155 if (argc == 5)
156 offset = strtol(argv[4], NULL, 0);
157 } else
158 offset = strtol(argv[3], NULL, 0);
159 }
160 req = gctl_get_handle();
161 gctl_ro_param(req, "class", -1, "VINUM");
162 gctl_ro_param(req, "verb", -1, "attach");
163 gctl_ro_param(req, "child", -1, argv[1]);
164 gctl_ro_param(req, "parent", -1, argv[2]);
165 gctl_ro_param(req, "offset", sizeof(off_t), &offset);
166 gctl_ro_param(req, "rename", sizeof(int), &rename);
167 errstr = gctl_issue(req);
168 if (errstr != NULL)
169 warnx("attach failed: %s", errstr);
170 gctl_free(req);
171 }
172
173 static void
gvinum_create(int argc,char * const * argv)174 gvinum_create(int argc, char * const *argv)
175 {
176 struct gctl_req *req;
177 struct gv_drive *d;
178 struct gv_plex *p;
179 struct gv_sd *s;
180 struct gv_volume *v;
181 FILE *tmp;
182 int drives, errors, fd, flags, i, line, plexes, plex_in_volume;
183 int sd_in_plex, status, subdisks, tokens, undeffd, volumes;
184 const char *errstr;
185 char buf[BUFSIZ], buf1[BUFSIZ], commandline[BUFSIZ], *ed, *sdname;
186 char original[BUFSIZ], tmpfile[20], *token[GV_MAXARGS];
187 char plex[GV_MAXPLEXNAME], volume[GV_MAXVOLNAME];
188
189 tmp = NULL;
190 flags = 0;
191 for (i = 1; i < argc; i++) {
192 /* Force flag used to ignore already created drives. */
193 if (!strcmp(argv[i], "-f")) {
194 flags |= GV_FLAG_F;
195 /* Else it must be a file. */
196 } else {
197 if ((tmp = fopen(argv[i], "r")) == NULL) {
198 warn("can't open '%s' for reading", argv[i]);
199 return;
200 }
201 }
202 }
203
204 /* We didn't get a file. */
205 if (tmp == NULL) {
206 snprintf(tmpfile, sizeof(tmpfile), "/tmp/gvinum.XXXXXX");
207
208 if ((fd = mkstemp(tmpfile)) == -1) {
209 warn("temporary file not accessible");
210 return;
211 }
212 if ((tmp = fdopen(fd, "w")) == NULL) {
213 warn("can't open '%s' for writing", tmpfile);
214 return;
215 }
216 printconfig(tmp, "# ");
217 fclose(tmp);
218
219 ed = getenv("EDITOR");
220 if (ed == NULL)
221 ed = _PATH_VI;
222
223 snprintf(commandline, sizeof(commandline), "%s %s", ed,
224 tmpfile);
225 status = system(commandline);
226 if (status != 0) {
227 warn("couldn't exec %s; status: %d", ed, status);
228 return;
229 }
230
231 if ((tmp = fopen(tmpfile, "r")) == NULL) {
232 warn("can't open '%s' for reading", tmpfile);
233 return;
234 }
235 }
236
237 req = gctl_get_handle();
238 gctl_ro_param(req, "class", -1, "VINUM");
239 gctl_ro_param(req, "verb", -1, "create");
240 gctl_ro_param(req, "flags", sizeof(int), &flags);
241
242 drives = volumes = plexes = subdisks = 0;
243 plex_in_volume = sd_in_plex = undeffd = 0;
244 plex[0] = '\0';
245 errors = 0;
246 line = 1;
247 while ((fgets(buf, BUFSIZ, tmp)) != NULL) {
248
249 /* Skip empty lines and comments. */
250 if (*buf == '\0' || *buf == '#') {
251 line++;
252 continue;
253 }
254
255 /* Kill off the newline. */
256 buf[strlen(buf) - 1] = '\0';
257
258 /*
259 * Copy the original input line in case we need it for error
260 * output.
261 */
262 strlcpy(original, buf, sizeof(original));
263
264 tokens = gv_tokenize(buf, token, GV_MAXARGS);
265 if (tokens <= 0) {
266 line++;
267 continue;
268 }
269
270 /* Volume definition. */
271 if (!strcmp(token[0], "volume")) {
272 v = gv_new_volume(tokens, token);
273 if (v == NULL) {
274 warnx("line %d: invalid volume definition",
275 line);
276 warnx("line %d: '%s'", line, original);
277 errors++;
278 line++;
279 continue;
280 }
281
282 /* Reset plex count for this volume. */
283 plex_in_volume = 0;
284
285 /*
286 * Set default volume name for following plex
287 * definitions.
288 */
289 strlcpy(volume, v->name, sizeof(volume));
290
291 snprintf(buf1, sizeof(buf1), "volume%d", volumes);
292 gctl_ro_param(req, buf1, sizeof(*v), v);
293 volumes++;
294
295 /* Plex definition. */
296 } else if (!strcmp(token[0], "plex")) {
297 p = gv_new_plex(tokens, token);
298 if (p == NULL) {
299 warnx("line %d: invalid plex definition", line);
300 warnx("line %d: '%s'", line, original);
301 errors++;
302 line++;
303 continue;
304 }
305
306 /* Reset subdisk count for this plex. */
307 sd_in_plex = 0;
308
309 /* Default name. */
310 if (strlen(p->name) == 0) {
311 snprintf(p->name, sizeof(p->name), "%s.p%d",
312 volume, plex_in_volume++);
313 }
314
315 /* Default volume. */
316 if (strlen(p->volume) == 0) {
317 snprintf(p->volume, sizeof(p->volume), "%s",
318 volume);
319 }
320
321 /*
322 * Set default plex name for following subdisk
323 * definitions.
324 */
325 strlcpy(plex, p->name, sizeof(plex));
326
327 snprintf(buf1, sizeof(buf1), "plex%d", plexes);
328 gctl_ro_param(req, buf1, sizeof(*p), p);
329 plexes++;
330
331 /* Subdisk definition. */
332 } else if (!strcmp(token[0], "sd")) {
333 s = gv_new_sd(tokens, token);
334 if (s == NULL) {
335 warnx("line %d: invalid subdisk "
336 "definition:", line);
337 warnx("line %d: '%s'", line, original);
338 errors++;
339 line++;
340 continue;
341 }
342
343 /* Default name. */
344 if (strlen(s->name) == 0) {
345 if (strlen(plex) == 0) {
346 sdname = find_name("gvinumsubdisk.p",
347 GV_TYPE_SD, GV_MAXSDNAME);
348 snprintf(s->name, sizeof(s->name),
349 "%s.s%d", sdname, undeffd++);
350 free(sdname);
351 } else {
352 snprintf(s->name, sizeof(s->name),
353 "%s.s%d",plex, sd_in_plex++);
354 }
355 }
356
357 /* Default plex. */
358 if (strlen(s->plex) == 0)
359 snprintf(s->plex, sizeof(s->plex), "%s", plex);
360
361 snprintf(buf1, sizeof(buf1), "sd%d", subdisks);
362 gctl_ro_param(req, buf1, sizeof(*s), s);
363 subdisks++;
364
365 /* Subdisk definition. */
366 } else if (!strcmp(token[0], "drive")) {
367 d = gv_new_drive(tokens, token);
368 if (d == NULL) {
369 warnx("line %d: invalid drive definition:",
370 line);
371 warnx("line %d: '%s'", line, original);
372 errors++;
373 line++;
374 continue;
375 }
376
377 snprintf(buf1, sizeof(buf1), "drive%d", drives);
378 gctl_ro_param(req, buf1, sizeof(*d), d);
379 drives++;
380
381 /* Everything else is bogus. */
382 } else {
383 warnx("line %d: invalid definition:", line);
384 warnx("line %d: '%s'", line, original);
385 errors++;
386 }
387 line++;
388 }
389
390 fclose(tmp);
391 unlink(tmpfile);
392
393 if (!errors && (volumes || plexes || subdisks || drives)) {
394 gctl_ro_param(req, "volumes", sizeof(int), &volumes);
395 gctl_ro_param(req, "plexes", sizeof(int), &plexes);
396 gctl_ro_param(req, "subdisks", sizeof(int), &subdisks);
397 gctl_ro_param(req, "drives", sizeof(int), &drives);
398 errstr = gctl_issue(req);
399 if (errstr != NULL)
400 warnx("create failed: %s", errstr);
401 }
402 gctl_free(req);
403 }
404
405 /* Create a concatenated volume. */
406 static void
gvinum_concat(int argc,char * const * argv)407 gvinum_concat(int argc, char * const *argv)
408 {
409
410 if (argc < 2) {
411 warnx("usage:\tconcat [-fv] [-n name] drives\n");
412 return;
413 }
414 create_volume(argc, argv, "concat");
415 }
416
417 /* Create a drive quick and dirty. */
418 static char *
create_drive(const char * device)419 create_drive(const char *device)
420 {
421 struct gv_drive *d;
422 struct gctl_req *req;
423 const char *errstr;
424 char *drivename, *dname;
425 int drives, i, flags, volumes, subdisks, plexes;
426 int found = 0;
427
428 flags = plexes = subdisks = volumes = 0;
429 drives = 1;
430 dname = NULL;
431
432 drivename = find_drive();
433 if (drivename == NULL)
434 return (NULL);
435
436 req = gctl_get_handle();
437 gctl_ro_param(req, "class", -1, "VINUM");
438 gctl_ro_param(req, "verb", -1, "create");
439 d = gv_alloc_drive();
440 if (d == NULL)
441 err(1, "unable to allocate for gv_drive object");
442
443 strlcpy(d->name, drivename, sizeof(d->name));
444 copy_device(d, device);
445 gctl_ro_param(req, "drive0", sizeof(*d), d);
446 gctl_ro_param(req, "flags", sizeof(int), &flags);
447 gctl_ro_param(req, "drives", sizeof(int), &drives);
448 gctl_ro_param(req, "volumes", sizeof(int), &volumes);
449 gctl_ro_param(req, "plexes", sizeof(int), &plexes);
450 gctl_ro_param(req, "subdisks", sizeof(int), &subdisks);
451 errstr = gctl_issue(req);
452 if (errstr != NULL) {
453 warnx("error creating drive: %s", errstr);
454 drivename = NULL;
455 } else {
456 /* XXX: This is needed because we have to make sure the drives
457 * are created before we return. */
458 /* Loop until it's in the config. */
459 for (i = 0; i < 100000; i++) {
460 dname = find_name("gvinumdrive", GV_TYPE_DRIVE,
461 GV_MAXDRIVENAME);
462 /* If we got a different name, quit. */
463 if (dname == NULL)
464 continue;
465 if (strcmp(dname, drivename))
466 found = 1;
467 free(dname);
468 dname = NULL;
469 if (found)
470 break;
471 usleep(100000); /* Sleep for 0.1s */
472 }
473 if (found == 0) {
474 warnx("error creating drive");
475 drivename = NULL;
476 }
477 }
478 gctl_free(req);
479 return (drivename);
480 }
481
482 /*
483 * General routine for creating a volume. Mainly for use by concat, mirror,
484 * raid5 and stripe commands.
485 */
486 static void
create_volume(int argc,char * const * argv,const char * verb)487 create_volume(int argc, char * const *argv, const char *verb)
488 {
489 struct gctl_req *req;
490 const char *errstr;
491 char buf[BUFSIZ], *drivename, *volname;
492 int drives, flags, i;
493 off_t stripesize;
494
495 flags = 0;
496 drives = 0;
497 volname = NULL;
498 stripesize = 262144;
499
500 /* XXX: Should we check for argument length? */
501
502 req = gctl_get_handle();
503 gctl_ro_param(req, "class", -1, "VINUM");
504
505 for (i = 1; i < argc; i++) {
506 if (!strcmp(argv[i], "-f")) {
507 flags |= GV_FLAG_F;
508 } else if (!strcmp(argv[i], "-n")) {
509 volname = argv[++i];
510 } else if (!strcmp(argv[i], "-v")) {
511 flags |= GV_FLAG_V;
512 } else if (!strcmp(argv[i], "-s")) {
513 flags |= GV_FLAG_S;
514 if (!strcmp(verb, "raid5"))
515 stripesize = gv_sizespec(argv[++i]);
516 } else {
517 /* Assume it's a drive. */
518 snprintf(buf, sizeof(buf), "drive%d", drives++);
519
520 /* First we create the drive. */
521 drivename = create_drive(argv[i]);
522 if (drivename == NULL)
523 goto bad;
524 /* Then we add it to the request. */
525 gctl_ro_param(req, buf, -1, drivename);
526 }
527 }
528
529 gctl_ro_param(req, "stripesize", sizeof(off_t), &stripesize);
530
531 /* Find a free volume name. */
532 if (volname == NULL)
533 volname = find_name("gvinumvolume", GV_TYPE_VOL, GV_MAXVOLNAME);
534
535 /* Then we send a request to actually create the volumes. */
536 gctl_ro_param(req, "verb", -1, verb);
537 gctl_ro_param(req, "flags", sizeof(int), &flags);
538 gctl_ro_param(req, "drives", sizeof(int), &drives);
539 gctl_ro_param(req, "name", -1, volname);
540 errstr = gctl_issue(req);
541 if (errstr != NULL)
542 warnx("creating %s volume failed: %s", verb, errstr);
543 bad:
544 gctl_free(req);
545 }
546
547 /* Parse a line of the config, return the word after <pattern>. */
548 static const char *
find_pattern(char * line,const char * pattern)549 find_pattern(char *line, const char *pattern)
550 {
551 char *ptr;
552
553 ptr = strsep(&line, " ");
554 while (ptr != NULL) {
555 if (!strcmp(ptr, pattern)) {
556 /* Return the next. */
557 ptr = strsep(&line, " ");
558 return (ptr);
559 }
560 ptr = strsep(&line, " ");
561 }
562 return (NULL);
563 }
564
565 /* Find a free name for an object given a prefix. */
566 static char *
find_name(const char * prefix,int type,int namelen)567 find_name(const char *prefix, int type, int namelen)
568 {
569 struct gctl_req *req;
570 char comment[1], buf[GV_CFG_LEN - 1], *sname, *ptr;
571 const char *errstr, *name;
572 int i, n, begin, len, conflict;
573 char line[1024];
574
575 comment[0] = '\0';
576
577 /* Find a name. Fetch out configuration first. */
578 req = gctl_get_handle();
579 gctl_ro_param(req, "class", -1, "VINUM");
580 gctl_ro_param(req, "verb", -1, "getconfig");
581 gctl_ro_param(req, "comment", -1, comment);
582 gctl_rw_param(req, "config", sizeof(buf), buf);
583 errstr = gctl_issue(req);
584 if (errstr != NULL) {
585 warnx("can't get configuration: %s", errstr);
586 return (NULL);
587 }
588 gctl_free(req);
589
590 begin = 0;
591 len = strlen(buf);
592 i = 0;
593 sname = malloc(namelen + 1);
594
595 /* XXX: Max object setting? */
596 for (n = 0; n < 10000; n++) {
597 snprintf(sname, namelen, "%s%d", prefix, n);
598 conflict = 0;
599 begin = 0;
600 /* Loop through the configuration line by line. */
601 for (i = 0; i < len; i++) {
602 if (buf[i] == '\n' || buf[i] == '\0') {
603 ptr = buf + begin;
604 strlcpy(line, ptr, (i - begin) + 1);
605 begin = i + 1;
606 switch (type) {
607 case GV_TYPE_DRIVE:
608 name = find_pattern(line, "drive");
609 break;
610 case GV_TYPE_VOL:
611 name = find_pattern(line, "volume");
612 break;
613 case GV_TYPE_PLEX:
614 case GV_TYPE_SD:
615 name = find_pattern(line, "name");
616 break;
617 default:
618 printf("Invalid type given\n");
619 continue;
620 }
621 if (name == NULL)
622 continue;
623 if (!strcmp(sname, name)) {
624 conflict = 1;
625 /* XXX: Could quit the loop earlier. */
626 }
627 }
628 }
629 if (!conflict)
630 return (sname);
631 }
632 free(sname);
633 return (NULL);
634 }
635
636 static void
copy_device(struct gv_drive * d,const char * device)637 copy_device(struct gv_drive *d, const char *device)
638 {
639
640 if (strncmp(device, "/dev/", 5) == 0)
641 strlcpy(d->device, (device + 5), sizeof(d->device));
642 else
643 strlcpy(d->device, device, sizeof(d->device));
644 }
645
646 /* Detach a plex or subdisk from its parent. */
647 static void
gvinum_detach(int argc,char * const * argv)648 gvinum_detach(int argc, char * const *argv)
649 {
650 const char *errstr;
651 struct gctl_req *req;
652 int flags, i;
653
654 flags = 0;
655 optreset = 1;
656 optind = 1;
657 while ((i = getopt(argc, argv, "f")) != -1) {
658 switch (i) {
659 case 'f':
660 flags |= GV_FLAG_F;
661 break;
662 default:
663 warn("invalid flag: %c", i);
664 return;
665 }
666 }
667 argc -= optind;
668 argv += optind;
669 if (argc != 1) {
670 warnx("usage: detach [-f] <subdisk> | <plex>");
671 return;
672 }
673
674 req = gctl_get_handle();
675 gctl_ro_param(req, "class", -1, "VINUM");
676 gctl_ro_param(req, "verb", -1, "detach");
677 gctl_ro_param(req, "object", -1, argv[0]);
678 gctl_ro_param(req, "flags", sizeof(int), &flags);
679
680 errstr = gctl_issue(req);
681 if (errstr != NULL)
682 warnx("detach failed: %s", errstr);
683 gctl_free(req);
684 }
685
686 static void
gvinum_help(void)687 gvinum_help(void)
688 {
689
690 printf("COMMANDS\n"
691 "checkparity [-f] plex\n"
692 " Check the parity blocks of a RAID-5 plex.\n"
693 "create [-f] description-file\n"
694 " Create as per description-file or open editor.\n"
695 "attach plex volume [rename]\n"
696 "attach subdisk plex [offset] [rename]\n"
697 " Attach a plex to a volume, or a subdisk to a plex\n"
698 "concat [-fv] [-n name] drives\n"
699 " Create a concatenated volume from the specified drives.\n"
700 "detach [-f] [plex | subdisk]\n"
701 " Detach a plex or a subdisk from the volume or plex to\n"
702 " which it is attached.\n"
703 "grow plex drive\n"
704 " Grow plex by creating a properly sized subdisk on drive\n"
705 "l | list [-r] [-v] [-V] [volume | plex | subdisk]\n"
706 " List information about specified objects.\n"
707 "ld [-r] [-v] [-V] [volume]\n"
708 " List information about drives.\n"
709 "ls [-r] [-v] [-V] [subdisk]\n"
710 " List information about subdisks.\n"
711 "lp [-r] [-v] [-V] [plex]\n"
712 " List information about plexes.\n"
713 "lv [-r] [-v] [-V] [volume]\n"
714 " List information about volumes.\n"
715 "mirror [-fsv] [-n name] drives\n"
716 " Create a mirrored volume from the specified drives.\n"
717 "move | mv -f drive object ...\n"
718 " Move the object(s) to the specified drive.\n"
719 "quit Exit the vinum program when running in interactive mode."
720 " Nor-\n"
721 " mally this would be done by entering the EOF character.\n"
722 "raid5 [-fv] [-s stripesize] [-n name] drives\n"
723 " Create a RAID-5 volume from the specified drives.\n"
724 "rename [-r] [drive | subdisk | plex | volume] newname\n"
725 " Change the name of the specified object.\n"
726 "rebuildparity plex [-f]\n"
727 " Rebuild the parity blocks of a RAID-5 plex.\n"
728 "resetconfig [-f]\n"
729 " Reset the complete gvinum configuration\n"
730 "rm [-r] [-f] volume | plex | subdisk | drive\n"
731 " Remove an object.\n"
732 "saveconfig\n"
733 " Save vinum configuration to disk after configuration"
734 " failures.\n"
735 "setstate [-f] state [volume | plex | subdisk | drive]\n"
736 " Set state without influencing other objects, for"
737 " diagnostic pur-\n"
738 " poses only.\n"
739 "start [-S size] volume | plex | subdisk\n"
740 " Allow the system to access the objects.\n"
741 "stripe [-fv] [-n name] drives\n"
742 " Create a striped volume from the specified drives.\n"
743 );
744 }
745
746 static void
gvinum_setstate(int argc,char * const * argv)747 gvinum_setstate(int argc, char * const *argv)
748 {
749 struct gctl_req *req;
750 int flags, i;
751 const char *errstr;
752
753 flags = 0;
754
755 optreset = 1;
756 optind = 1;
757
758 while ((i = getopt(argc, argv, "f")) != -1) {
759 switch (i) {
760 case 'f':
761 flags |= GV_FLAG_F;
762 break;
763 case '?':
764 default:
765 warn("invalid flag: %c", i);
766 return;
767 }
768 }
769
770 argc -= optind;
771 argv += optind;
772
773 if (argc != 2) {
774 warnx("usage: setstate [-f] <state> <obj>");
775 return;
776 }
777
778 /*
779 * XXX: This hack is needed to avoid tripping over (now) invalid
780 * 'classic' vinum states and will go away later.
781 */
782 if (strcmp(argv[0], "up") && strcmp(argv[0], "down") &&
783 strcmp(argv[0], "stale")) {
784 warnx("invalid state '%s'", argv[0]);
785 return;
786 }
787
788 req = gctl_get_handle();
789 gctl_ro_param(req, "class", -1, "VINUM");
790 gctl_ro_param(req, "verb", -1, "setstate");
791 gctl_ro_param(req, "state", -1, argv[0]);
792 gctl_ro_param(req, "object", -1, argv[1]);
793 gctl_ro_param(req, "flags", sizeof(int), &flags);
794
795 errstr = gctl_issue(req);
796 if (errstr != NULL)
797 warnx("%s", errstr);
798 gctl_free(req);
799 }
800
801 static void
gvinum_list(int argc,char * const * argv)802 gvinum_list(int argc, char * const *argv)
803 {
804 struct gctl_req *req;
805 int flags, i, j;
806 const char *errstr;
807 char buf[20], *cmd, config[GV_CFG_LEN + 1];
808
809 flags = 0;
810 cmd = "list";
811
812 if (argc) {
813 optreset = 1;
814 optind = 1;
815 cmd = argv[0];
816 while ((j = getopt(argc, argv, "rsvV")) != -1) {
817 switch (j) {
818 case 'r':
819 flags |= GV_FLAG_R;
820 break;
821 case 's':
822 flags |= GV_FLAG_S;
823 break;
824 case 'v':
825 flags |= GV_FLAG_V;
826 break;
827 case 'V':
828 flags |= GV_FLAG_V;
829 flags |= GV_FLAG_VV;
830 break;
831 case '?':
832 default:
833 return;
834 }
835 }
836 argc -= optind;
837 argv += optind;
838
839 }
840
841 req = gctl_get_handle();
842 gctl_ro_param(req, "class", -1, "VINUM");
843 gctl_ro_param(req, "verb", -1, "list");
844 gctl_ro_param(req, "cmd", -1, cmd);
845 gctl_ro_param(req, "argc", sizeof(int), &argc);
846 gctl_ro_param(req, "flags", sizeof(int), &flags);
847 gctl_rw_param(req, "config", sizeof(config), config);
848 if (argc) {
849 for (i = 0; i < argc; i++) {
850 snprintf(buf, sizeof(buf), "argv%d", i);
851 gctl_ro_param(req, buf, -1, argv[i]);
852 }
853 }
854 errstr = gctl_issue(req);
855 if (errstr != NULL) {
856 warnx("can't get configuration: %s", errstr);
857 gctl_free(req);
858 return;
859 }
860
861 printf("%s", config);
862 gctl_free(req);
863 }
864
865 /* Create a mirrored volume. */
866 static void
gvinum_mirror(int argc,char * const * argv)867 gvinum_mirror(int argc, char * const *argv)
868 {
869
870 if (argc < 2) {
871 warnx("usage\tmirror [-fsv] [-n name] drives\n");
872 return;
873 }
874 create_volume(argc, argv, "mirror");
875 }
876
877 /* Note that move is currently of form '[-r] target object [...]' */
878 static void
gvinum_move(int argc,char * const * argv)879 gvinum_move(int argc, char * const *argv)
880 {
881 struct gctl_req *req;
882 const char *errstr;
883 char buf[20];
884 int flags, i, j;
885
886 flags = 0;
887 if (argc) {
888 optreset = 1;
889 optind = 1;
890 while ((j = getopt(argc, argv, "f")) != -1) {
891 switch (j) {
892 case 'f':
893 flags |= GV_FLAG_F;
894 break;
895 case '?':
896 default:
897 return;
898 }
899 }
900 argc -= optind;
901 argv += optind;
902 }
903
904 switch (argc) {
905 case 0:
906 warnx("no destination or object(s) to move specified");
907 return;
908 case 1:
909 warnx("no object(s) to move specified");
910 return;
911 default:
912 break;
913 }
914
915 req = gctl_get_handle();
916 gctl_ro_param(req, "class", -1, "VINUM");
917 gctl_ro_param(req, "verb", -1, "move");
918 gctl_ro_param(req, "argc", sizeof(int), &argc);
919 gctl_ro_param(req, "flags", sizeof(int), &flags);
920 gctl_ro_param(req, "destination", -1, argv[0]);
921 for (i = 1; i < argc; i++) {
922 snprintf(buf, sizeof(buf), "argv%d", i);
923 gctl_ro_param(req, buf, -1, argv[i]);
924 }
925 errstr = gctl_issue(req);
926 if (errstr != NULL)
927 warnx("can't move object(s): %s", errstr);
928 gctl_free(req);
929 }
930
931 static void
gvinum_printconfig(int argc,char * const * argv)932 gvinum_printconfig(int argc, char * const *argv)
933 {
934
935 printconfig(stdout, "");
936 }
937
938 static void
gvinum_parityop(int argc,char * const * argv,int rebuild)939 gvinum_parityop(int argc, char * const *argv, int rebuild)
940 {
941 struct gctl_req *req;
942 int flags, i;
943 const char *errstr;
944 char *op;
945
946 if (rebuild) {
947 op = "rebuildparity";
948 } else {
949 op = "checkparity";
950 }
951
952 optreset = 1;
953 optind = 1;
954 flags = 0;
955 while ((i = getopt(argc, argv, "fv")) != -1) {
956 switch (i) {
957 case 'f':
958 flags |= GV_FLAG_F;
959 break;
960 case 'v':
961 flags |= GV_FLAG_V;
962 break;
963 default:
964 warnx("invalid flag '%c'", i);
965 return;
966 }
967 }
968 argc -= optind;
969 argv += optind;
970
971 if (argc != 1) {
972 warn("usage: %s [-f] [-v] <plex>", op);
973 return;
974 }
975
976 req = gctl_get_handle();
977 gctl_ro_param(req, "class", -1, "VINUM");
978 gctl_ro_param(req, "verb", -1, op);
979 gctl_ro_param(req, "rebuild", sizeof(int), &rebuild);
980 gctl_ro_param(req, "flags", sizeof(int), &flags);
981 gctl_ro_param(req, "plex", -1, argv[0]);
982
983 errstr = gctl_issue(req);
984 if (errstr)
985 warnx("%s\n", errstr);
986 gctl_free(req);
987 }
988
989 /* Create a RAID-5 volume. */
990 static void
gvinum_raid5(int argc,char * const * argv)991 gvinum_raid5(int argc, char * const *argv)
992 {
993
994 if (argc < 2) {
995 warnx("usage:\traid5 [-fv] [-s stripesize] [-n name] drives\n");
996 return;
997 }
998 create_volume(argc, argv, "raid5");
999 }
1000
1001 static void
gvinum_rename(int argc,char * const * argv)1002 gvinum_rename(int argc, char * const *argv)
1003 {
1004 struct gctl_req *req;
1005 const char *errstr;
1006 int flags, j;
1007
1008 flags = 0;
1009
1010 if (argc) {
1011 optreset = 1;
1012 optind = 1;
1013 while ((j = getopt(argc, argv, "r")) != -1) {
1014 switch (j) {
1015 case 'r':
1016 flags |= GV_FLAG_R;
1017 break;
1018 default:
1019 return;
1020 }
1021 }
1022 argc -= optind;
1023 argv += optind;
1024 }
1025
1026 switch (argc) {
1027 case 0:
1028 warnx("no object to rename specified");
1029 return;
1030 case 1:
1031 warnx("no new name specified");
1032 return;
1033 case 2:
1034 break;
1035 default:
1036 warnx("more than one new name specified");
1037 return;
1038 }
1039
1040 req = gctl_get_handle();
1041 gctl_ro_param(req, "class", -1, "VINUM");
1042 gctl_ro_param(req, "verb", -1, "rename");
1043 gctl_ro_param(req, "flags", sizeof(int), &flags);
1044 gctl_ro_param(req, "object", -1, argv[0]);
1045 gctl_ro_param(req, "newname", -1, argv[1]);
1046 errstr = gctl_issue(req);
1047 if (errstr != NULL)
1048 warnx("can't rename object: %s", errstr);
1049 gctl_free(req);
1050 }
1051
1052 static void
gvinum_rm(int argc,char * const * argv)1053 gvinum_rm(int argc, char * const *argv)
1054 {
1055 struct gctl_req *req;
1056 int flags, i, j;
1057 const char *errstr;
1058 char buf[20];
1059
1060 flags = 0;
1061 optreset = 1;
1062 optind = 1;
1063 while ((j = getopt(argc, argv, "rf")) != -1) {
1064 switch (j) {
1065 case 'f':
1066 flags |= GV_FLAG_F;
1067 break;
1068 case 'r':
1069 flags |= GV_FLAG_R;
1070 break;
1071 default:
1072 return;
1073 }
1074 }
1075 argc -= optind;
1076 argv += optind;
1077
1078 req = gctl_get_handle();
1079 gctl_ro_param(req, "class", -1, "VINUM");
1080 gctl_ro_param(req, "verb", -1, "remove");
1081 gctl_ro_param(req, "argc", sizeof(int), &argc);
1082 gctl_ro_param(req, "flags", sizeof(int), &flags);
1083 if (argc) {
1084 for (i = 0; i < argc; i++) {
1085 snprintf(buf, sizeof(buf), "argv%d", i);
1086 gctl_ro_param(req, buf, -1, argv[i]);
1087 }
1088 }
1089 errstr = gctl_issue(req);
1090 if (errstr != NULL) {
1091 warnx("can't remove: %s", errstr);
1092 gctl_free(req);
1093 return;
1094 }
1095 gctl_free(req);
1096 }
1097
1098 static void
gvinum_resetconfig(int argc,char * const * argv)1099 gvinum_resetconfig(int argc, char * const *argv)
1100 {
1101 struct gctl_req *req;
1102 const char *errstr;
1103 char reply[32];
1104 int flags, i;
1105
1106 flags = 0;
1107 while ((i = getopt(argc, argv, "f")) != -1) {
1108 switch (i) {
1109 case 'f':
1110 flags |= GV_FLAG_F;
1111 break;
1112 default:
1113 warn("invalid flag: %c", i);
1114 return;
1115 }
1116 }
1117 if ((flags & GV_FLAG_F) == 0) {
1118 if (!isatty(STDIN_FILENO)) {
1119 warn("Please enter this command from a tty device\n");
1120 return;
1121 }
1122 printf(" WARNING! This command will completely wipe out"
1123 " your gvinum configuration.\n"
1124 " All data will be lost. If you really want to do this,"
1125 " enter the text\n\n"
1126 " NO FUTURE\n"
1127 " Enter text -> ");
1128 fgets(reply, sizeof(reply), stdin);
1129 if (strcmp(reply, "NO FUTURE\n")) {
1130 printf("\n No change\n");
1131 return;
1132 }
1133 }
1134 req = gctl_get_handle();
1135 gctl_ro_param(req, "class", -1, "VINUM");
1136 gctl_ro_param(req, "verb", -1, "resetconfig");
1137 errstr = gctl_issue(req);
1138 if (errstr != NULL) {
1139 warnx("can't reset config: %s", errstr);
1140 gctl_free(req);
1141 return;
1142 }
1143 gctl_free(req);
1144 printf("gvinum configuration obliterated\n");
1145 }
1146
1147 static void
gvinum_saveconfig(void)1148 gvinum_saveconfig(void)
1149 {
1150 struct gctl_req *req;
1151 const char *errstr;
1152
1153 req = gctl_get_handle();
1154 gctl_ro_param(req, "class", -1, "VINUM");
1155 gctl_ro_param(req, "verb", -1, "saveconfig");
1156 errstr = gctl_issue(req);
1157 if (errstr != NULL)
1158 warnx("can't save configuration: %s", errstr);
1159 gctl_free(req);
1160 }
1161
1162 static void
gvinum_start(int argc,char * const * argv)1163 gvinum_start(int argc, char * const *argv)
1164 {
1165 struct gctl_req *req;
1166 int i, initsize, j;
1167 const char *errstr;
1168 char buf[20];
1169
1170 /* 'start' with no arguments is a no-op. */
1171 if (argc == 1)
1172 return;
1173
1174 initsize = 0;
1175
1176 optreset = 1;
1177 optind = 1;
1178 while ((j = getopt(argc, argv, "S")) != -1) {
1179 switch (j) {
1180 case 'S':
1181 initsize = atoi(optarg);
1182 break;
1183 default:
1184 return;
1185 }
1186 }
1187 argc -= optind;
1188 argv += optind;
1189
1190 if (!initsize)
1191 initsize = 512;
1192
1193 req = gctl_get_handle();
1194 gctl_ro_param(req, "class", -1, "VINUM");
1195 gctl_ro_param(req, "verb", -1, "start");
1196 gctl_ro_param(req, "argc", sizeof(int), &argc);
1197 gctl_ro_param(req, "initsize", sizeof(int), &initsize);
1198 if (argc) {
1199 for (i = 0; i < argc; i++) {
1200 snprintf(buf, sizeof(buf), "argv%d", i);
1201 gctl_ro_param(req, buf, -1, argv[i]);
1202 }
1203 }
1204 errstr = gctl_issue(req);
1205 if (errstr != NULL) {
1206 warnx("can't start: %s", errstr);
1207 gctl_free(req);
1208 return;
1209 }
1210
1211 gctl_free(req);
1212 }
1213
1214 static void
gvinum_stop(int argc,char * const * argv)1215 gvinum_stop(int argc, char * const *argv)
1216 {
1217 int err, fileid;
1218
1219 fileid = kldfind(GVINUMKLD);
1220 if (fileid == -1) {
1221 if (modfind(GVINUMMOD) < 0)
1222 warn("cannot find " GVINUMKLD);
1223 return;
1224 }
1225
1226 /*
1227 * This little hack prevents that we end up in an infinite loop in
1228 * g_unload_class(). gv_unload() will return EAGAIN so that the GEOM
1229 * event thread will be free for the g_wither_geom() call from
1230 * gv_unload(). It's silly, but it works.
1231 */
1232 printf("unloading " GVINUMKLD " kernel module... ");
1233 fflush(stdout);
1234 if ((err = kldunload(fileid)) != 0 && (errno == EAGAIN)) {
1235 sleep(1);
1236 err = kldunload(fileid);
1237 }
1238 if (err != 0) {
1239 printf(" failed!\n");
1240 warn("cannot unload " GVINUMKLD);
1241 return;
1242 }
1243
1244 printf("done\n");
1245 exit(0);
1246 }
1247
1248 /* Create a striped volume. */
1249 static void
gvinum_stripe(int argc,char * const * argv)1250 gvinum_stripe(int argc, char * const *argv)
1251 {
1252
1253 if (argc < 2) {
1254 warnx("usage:\tstripe [-fv] [-n name] drives\n");
1255 return;
1256 }
1257 create_volume(argc, argv, "stripe");
1258 }
1259
1260 /* Grow a subdisk by adding disk backed by provider. */
1261 static void
gvinum_grow(int argc,char * const * argv)1262 gvinum_grow(int argc, char * const *argv)
1263 {
1264 struct gctl_req *req;
1265 char *drive, *sdname;
1266 char sdprefix[GV_MAXSDNAME];
1267 struct gv_drive *d;
1268 struct gv_sd *s;
1269 const char *errstr;
1270 int drives, volumes, plexes, subdisks, flags;
1271
1272 flags = 0;
1273 drives = volumes = plexes = subdisks = 0;
1274 if (argc < 3) {
1275 warnx("usage:\tgrow plex drive\n");
1276 return;
1277 }
1278
1279 s = gv_alloc_sd();
1280 if (s == NULL) {
1281 warn("unable to create subdisk");
1282 return;
1283 }
1284 d = gv_alloc_drive();
1285 if (d == NULL) {
1286 warn("unable to create drive");
1287 free(s);
1288 return;
1289 }
1290 /* Lookup device and set an appropriate drive name. */
1291 drive = find_drive();
1292 if (drive == NULL) {
1293 warn("unable to find an appropriate drive name");
1294 free(s);
1295 free(d);
1296 return;
1297 }
1298 strlcpy(d->name, drive, sizeof(d->name));
1299 copy_device(d, argv[2]);
1300
1301 drives = 1;
1302
1303 /* We try to use the plex name as basis for the subdisk name. */
1304 snprintf(sdprefix, sizeof(sdprefix), "%s.s", argv[1]);
1305 sdname = find_name(sdprefix, GV_TYPE_SD, GV_MAXSDNAME);
1306 if (sdname == NULL) {
1307 warn("unable to find an appropriate subdisk name");
1308 free(s);
1309 free(d);
1310 free(drive);
1311 return;
1312 }
1313 strlcpy(s->name, sdname, sizeof(s->name));
1314 free(sdname);
1315 strlcpy(s->plex, argv[1], sizeof(s->plex));
1316 strlcpy(s->drive, d->name, sizeof(s->drive));
1317 subdisks = 1;
1318
1319 req = gctl_get_handle();
1320 gctl_ro_param(req, "class", -1, "VINUM");
1321 gctl_ro_param(req, "verb", -1, "create");
1322 gctl_ro_param(req, "flags", sizeof(int), &flags);
1323 gctl_ro_param(req, "volumes", sizeof(int), &volumes);
1324 gctl_ro_param(req, "plexes", sizeof(int), &plexes);
1325 gctl_ro_param(req, "subdisks", sizeof(int), &subdisks);
1326 gctl_ro_param(req, "drives", sizeof(int), &drives);
1327 gctl_ro_param(req, "drive0", sizeof(*d), d);
1328 gctl_ro_param(req, "sd0", sizeof(*s), s);
1329 errstr = gctl_issue(req);
1330 free(drive);
1331 if (errstr != NULL) {
1332 warnx("unable to grow plex: %s", errstr);
1333 free(s);
1334 free(d);
1335 return;
1336 }
1337 gctl_free(req);
1338 }
1339
1340 static void
parseline(int argc,char * const * argv)1341 parseline(int argc, char * const *argv)
1342 {
1343
1344 if (argc <= 0)
1345 return;
1346
1347 if (!strcmp(argv[0], "create"))
1348 gvinum_create(argc, argv);
1349 else if (!strcmp(argv[0], "exit") || !strcmp(argv[0], "quit"))
1350 exit(0);
1351 else if (!strcmp(argv[0], "attach"))
1352 gvinum_attach(argc, argv);
1353 else if (!strcmp(argv[0], "detach"))
1354 gvinum_detach(argc, argv);
1355 else if (!strcmp(argv[0], "concat"))
1356 gvinum_concat(argc, argv);
1357 else if (!strcmp(argv[0], "grow"))
1358 gvinum_grow(argc, argv);
1359 else if (!strcmp(argv[0], "help"))
1360 gvinum_help();
1361 else if (!strcmp(argv[0], "list") || !strcmp(argv[0], "l"))
1362 gvinum_list(argc, argv);
1363 else if (!strcmp(argv[0], "ld"))
1364 gvinum_list(argc, argv);
1365 else if (!strcmp(argv[0], "lp"))
1366 gvinum_list(argc, argv);
1367 else if (!strcmp(argv[0], "ls"))
1368 gvinum_list(argc, argv);
1369 else if (!strcmp(argv[0], "lv"))
1370 gvinum_list(argc, argv);
1371 else if (!strcmp(argv[0], "mirror"))
1372 gvinum_mirror(argc, argv);
1373 else if (!strcmp(argv[0], "move"))
1374 gvinum_move(argc, argv);
1375 else if (!strcmp(argv[0], "mv"))
1376 gvinum_move(argc, argv);
1377 else if (!strcmp(argv[0], "printconfig"))
1378 gvinum_printconfig(argc, argv);
1379 else if (!strcmp(argv[0], "raid5"))
1380 gvinum_raid5(argc, argv);
1381 else if (!strcmp(argv[0], "rename"))
1382 gvinum_rename(argc, argv);
1383 else if (!strcmp(argv[0], "resetconfig"))
1384 gvinum_resetconfig(argc, argv);
1385 else if (!strcmp(argv[0], "rm"))
1386 gvinum_rm(argc, argv);
1387 else if (!strcmp(argv[0], "saveconfig"))
1388 gvinum_saveconfig();
1389 else if (!strcmp(argv[0], "setstate"))
1390 gvinum_setstate(argc, argv);
1391 else if (!strcmp(argv[0], "start"))
1392 gvinum_start(argc, argv);
1393 else if (!strcmp(argv[0], "stop"))
1394 gvinum_stop(argc, argv);
1395 else if (!strcmp(argv[0], "stripe"))
1396 gvinum_stripe(argc, argv);
1397 else if (!strcmp(argv[0], "checkparity"))
1398 gvinum_parityop(argc, argv, 0);
1399 else if (!strcmp(argv[0], "rebuildparity"))
1400 gvinum_parityop(argc, argv, 1);
1401 else
1402 printf("unknown command '%s'\n", argv[0]);
1403 }
1404
1405 /*
1406 * The guts of printconfig. This is called from gvinum_printconfig and from
1407 * gvinum_create when called without an argument, in order to give the user
1408 * something to edit.
1409 */
1410 static void
printconfig(FILE * of,const char * comment)1411 printconfig(FILE *of, const char *comment)
1412 {
1413 struct gctl_req *req;
1414 struct utsname uname_s;
1415 const char *errstr;
1416 time_t now;
1417 char buf[GV_CFG_LEN + 1];
1418
1419 uname(&uname_s);
1420 time(&now);
1421
1422 req = gctl_get_handle();
1423 gctl_ro_param(req, "class", -1, "VINUM");
1424 gctl_ro_param(req, "verb", -1, "getconfig");
1425 gctl_ro_param(req, "comment", -1, comment);
1426 gctl_rw_param(req, "config", sizeof(buf), buf);
1427 errstr = gctl_issue(req);
1428 if (errstr != NULL) {
1429 warnx("can't get configuration: %s", errstr);
1430 return;
1431 }
1432 gctl_free(req);
1433
1434 fprintf(of, "# Vinum configuration of %s, saved at %s",
1435 uname_s.nodename,
1436 ctime(&now));
1437
1438 if (*comment != '\0')
1439 fprintf(of, "# Current configuration:\n");
1440
1441 fprintf(of, "%s", buf);
1442 }
1443