2 * Copyright (c) 2007, 2008 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
51 #include "core/geom.h"
52 #include "misc/subr.h"
54 #ifdef STATIC_GEOM_CLASSES
55 #define PUBSYM(x) gpart_##x
60 uint32_t PUBSYM(lib_version) = G_LIB_VERSION;
61 uint32_t PUBSYM(version) = 0;
63 static char sstart[32];
64 static char ssize[32];
65 volatile sig_atomic_t undo_restore;
67 #define GPART_AUTOFILL "*"
68 #define GPART_FLAGS "C"
70 #define GPART_PARAM_BOOTCODE "bootcode"
71 #define GPART_PARAM_INDEX "index"
72 #define GPART_PARAM_PARTCODE "partcode"
74 static struct gclass *find_class(struct gmesh *, const char *);
75 static struct ggeom * find_geom(struct gclass *, const char *);
76 static const char *find_geomcfg(struct ggeom *, const char *);
77 static const char *find_provcfg(struct gprovider *, const char *);
78 static struct gprovider *find_provider(struct ggeom *, off_t);
79 static const char *fmtsize(int64_t);
80 static int gpart_autofill(struct gctl_req *);
81 static int gpart_autofill_resize(struct gctl_req *);
82 static void gpart_bootcode(struct gctl_req *, unsigned int);
83 static void *gpart_bootfile_read(const char *, ssize_t *);
84 static void gpart_issue(struct gctl_req *, unsigned int);
85 static void gpart_show(struct gctl_req *, unsigned int);
86 static void gpart_show_geom(struct ggeom *, const char *, int);
87 static int gpart_show_hasopt(struct gctl_req *, const char *, const char *);
88 static void gpart_write_partcode(struct ggeom *, int, void *, ssize_t);
89 static void gpart_write_partcode_vtoc8(struct ggeom *, int, void *);
90 static void gpart_print_error(const char *);
91 static void gpart_backup(struct gctl_req *, unsigned int);
92 static void gpart_restore(struct gctl_req *, unsigned int);
94 struct g_command PUBSYM(class_commands)[] = {
95 { "add", 0, gpart_issue, {
96 { 'a', "alignment", GPART_AUTOFILL, G_TYPE_STRING },
97 { 'b', "start", GPART_AUTOFILL, G_TYPE_STRING },
98 { 's', "size", GPART_AUTOFILL, G_TYPE_STRING },
99 { 't', "type", NULL, G_TYPE_STRING },
100 { 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER },
101 { 'l', "label", G_VAL_OPTIONAL, G_TYPE_STRING },
102 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
104 "-t type [-a alignment] [-b start] [-s size] [-i index] "
105 "[-l label] [-f flags] geom"
107 { "backup", 0, gpart_backup, G_NULL_OPTS,
110 { "bootcode", 0, gpart_bootcode, {
111 { 'b', GPART_PARAM_BOOTCODE, G_VAL_OPTIONAL, G_TYPE_STRING },
112 { 'p', GPART_PARAM_PARTCODE, G_VAL_OPTIONAL, G_TYPE_STRING },
113 { 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER },
114 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
116 "[-b bootcode] [-p partcode -i index] [-f flags] geom"
118 { "commit", 0, gpart_issue, G_NULL_OPTS,
121 { "create", 0, gpart_issue, {
122 { 's', "scheme", NULL, G_TYPE_STRING },
123 { 'n', "entries", G_VAL_OPTIONAL, G_TYPE_NUMBER },
124 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
126 "-s scheme [-n entries] [-f flags] provider"
128 { "delete", 0, gpart_issue, {
129 { 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER },
130 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
132 "-i index [-f flags] geom"
134 { "destroy", 0, gpart_issue, {
135 { 'F', "force", NULL, G_TYPE_BOOL },
136 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
138 "[-F] [-f flags] geom"
140 { "modify", 0, gpart_issue, {
141 { 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER },
142 { 'l', "label", G_VAL_OPTIONAL, G_TYPE_STRING },
143 { 't', "type", G_VAL_OPTIONAL, G_TYPE_STRING },
144 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
146 "-i index [-l label] [-t type] [-f flags] geom"
148 { "set", 0, gpart_issue, {
149 { 'a', "attrib", NULL, G_TYPE_STRING },
150 { 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER },
151 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
153 "-a attrib [-i index] [-f flags] geom"
155 { "show", 0, gpart_show, {
156 { 'l', "show_label", NULL, G_TYPE_BOOL },
157 { 'r', "show_rawtype", NULL, G_TYPE_BOOL },
158 { 'p', "show_providers", NULL, G_TYPE_BOOL },
160 "[-l | -r] [-p] [geom ...]"
162 { "undo", 0, gpart_issue, G_NULL_OPTS,
165 { "unset", 0, gpart_issue, {
166 { 'a', "attrib", NULL, G_TYPE_STRING },
167 { 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER },
168 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
170 "-a attrib [-i index] [-f flags] geom"
172 { "resize", 0, gpart_issue, {
173 { 'a', "alignment", GPART_AUTOFILL, G_TYPE_STRING },
174 { 's', "size", GPART_AUTOFILL, G_TYPE_STRING },
175 { 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER },
176 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
178 "-i index [-a alignment] [-s size] [-f flags] geom"
180 { "restore", 0, gpart_restore, {
181 { 'F', "force", NULL, G_TYPE_BOOL },
182 { 'l', "restore_labels", NULL, G_TYPE_BOOL },
183 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
185 "[-lF] [-f flags] provider [...]"
187 { "recover", 0, gpart_issue, {
188 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
195 static struct gclass *
196 find_class(struct gmesh *mesh, const char *name)
198 struct gclass *classp;
200 LIST_FOREACH(classp, &mesh->lg_class, lg_class) {
201 if (strcmp(classp->lg_name, name) == 0)
207 static struct ggeom *
208 find_geom(struct gclass *classp, const char *name)
212 if (strncmp(name, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0)
213 name += sizeof(_PATH_DEV) - 1;
214 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) {
215 if (strcmp(gp->lg_name, name) == 0)
222 find_geomcfg(struct ggeom *gp, const char *cfg)
226 LIST_FOREACH(gc, &gp->lg_config, lg_config) {
227 if (!strcmp(gc->lg_name, cfg))
234 find_provcfg(struct gprovider *pp, const char *cfg)
238 LIST_FOREACH(gc, &pp->lg_config, lg_config) {
239 if (!strcmp(gc->lg_name, cfg))
245 static struct gprovider *
246 find_provider(struct ggeom *gp, off_t minsector)
248 struct gprovider *pp, *bestpp;
250 off_t sector, bestsector;
254 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
255 s = find_provcfg(pp, "start");
256 sector = (off_t)strtoimax(s, NULL, 0);
257 if (sector < minsector)
259 if (bestpp != NULL && sector >= bestsector)
269 fmtsize(int64_t rawsz)
273 humanize_number(buf, sizeof(buf), rawsz, "", HN_AUTOSCALE,
274 HN_B | HN_NOSPACE | HN_DECIMAL);
279 fmtattrib(struct gprovider *pp)
281 static char buf[128];
287 LIST_FOREACH(gc, &pp->lg_config, lg_config) {
288 if (strcmp(gc->lg_name, "attrib") != 0)
290 idx += snprintf(buf + idx, sizeof(buf) - idx, "%s%s",
291 (idx == 0) ? " [" : ",", gc->lg_val);
294 snprintf(buf + idx, sizeof(buf) - idx, "] ");
298 #define ALIGNDOWN(d, a) ((d) - (d) % (a))
299 #define ALIGNUP(d, a) ((d) % (a) ? (d) - (d) % (a) + (a): (d))
302 gpart_autofill_resize(struct gctl_req *req)
307 struct gprovider *pp;
308 off_t last, size, start, new_size;
309 off_t lba, new_lba, alignment, offset;
311 int error, idx, has_alignment;
313 idx = (int)gctl_get_intmax(req, GPART_PARAM_INDEX);
315 errx(EXIT_FAILURE, "invalid partition index");
317 error = geom_gettree(&mesh);
320 s = gctl_get_ascii(req, "class");
323 cp = find_class(&mesh, s);
325 errx(EXIT_FAILURE, "Class %s not found.", s);
326 s = gctl_get_ascii(req, "arg0");
329 gp = find_geom(cp, s);
331 errx(EXIT_FAILURE, "No such geom: %s.", s);
332 pp = LIST_FIRST(&gp->lg_consumer)->lg_provider;
334 errx(EXIT_FAILURE, "Provider for geom %s not found.", s);
336 s = gctl_get_ascii(req, "alignment");
337 has_alignment = (*s == '*') ? 0 : 1;
340 error = g_parse_lba(s, pp->lg_sectorsize, &alignment);
342 errc(EXIT_FAILURE, error, "Invalid alignment param");
344 errx(EXIT_FAILURE, "Invalid alignment param");
346 lba = pp->lg_stripesize / pp->lg_sectorsize;
350 error = gctl_delete_param(req, "alignment");
352 errc(EXIT_FAILURE, error, "internal error");
354 s = gctl_get_ascii(req, "size");
358 error = g_parse_lba(s, pp->lg_sectorsize, &new_size);
360 errc(EXIT_FAILURE, error, "Invalid size param");
361 /* no autofill necessary. */
362 if (has_alignment == 0)
366 offset = (pp->lg_stripeoffset / pp->lg_sectorsize) % alignment;
367 s = find_geomcfg(gp, "last");
369 errx(EXIT_FAILURE, "Final block not found for geom %s",
371 last = (off_t)strtoimax(s, NULL, 0);
372 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
373 s = find_provcfg(pp, "index");
380 errx(EXIT_FAILURE, "invalid partition index");
382 s = find_provcfg(pp, "start");
383 start = (off_t)strtoimax(s, NULL, 0);
384 s = find_provcfg(pp, "end");
385 lba = (off_t)strtoimax(s, NULL, 0);
386 size = lba - start + 1;
388 pp = find_provider(gp, lba + 1);
389 if (new_size > 0 && (new_size <= size || pp == NULL)) {
390 /* The start offset may be not aligned, so we align the end
391 * offset and then calculate the size.
393 new_size = ALIGNDOWN(start + offset + new_size,
394 alignment) - start - offset;
398 new_size = ALIGNDOWN(last + offset + 1, alignment) -
403 s = find_provcfg(pp, "start");
404 new_lba = (off_t)strtoimax(s, NULL, 0);
406 * Is there any free space between current and
409 new_lba = ALIGNDOWN(new_lba + offset, alignment) - offset;
411 new_size = new_lba - start;
413 geom_deletetree(&mesh);
418 snprintf(ssize, sizeof(ssize), "%jd", (intmax_t)new_size);
419 gctl_change_param(req, "size", -1, ssize);
420 geom_deletetree(&mesh);
425 gpart_autofill(struct gctl_req *req)
430 struct gprovider *pp;
431 off_t first, last, a_first;
432 off_t size, start, a_lba;
433 off_t lba, len, alignment, offset;
436 int error, has_size, has_start, has_alignment;
438 s = gctl_get_ascii(req, "verb");
439 if (strcmp(s, "resize") == 0)
440 return gpart_autofill_resize(req);
441 if (strcmp(s, "add") != 0)
444 error = geom_gettree(&mesh);
447 s = gctl_get_ascii(req, "class");
450 cp = find_class(&mesh, s);
452 errx(EXIT_FAILURE, "Class %s not found.", s);
453 s = gctl_get_ascii(req, "arg0");
456 gp = find_geom(cp, s);
458 errx(EXIT_FAILURE, "No such geom: %s.", s);
459 pp = LIST_FIRST(&gp->lg_consumer)->lg_provider;
461 errx(EXIT_FAILURE, "Provider for geom %s not found.", s);
463 s = gctl_get_ascii(req, "alignment");
464 has_alignment = (*s == '*') ? 0 : 1;
467 error = g_parse_lba(s, pp->lg_sectorsize, &alignment);
469 errc(EXIT_FAILURE, error, "Invalid alignment param");
471 errx(EXIT_FAILURE, "Invalid alignment param");
473 error = gctl_delete_param(req, "alignment");
475 errc(EXIT_FAILURE, error, "internal error");
477 s = gctl_get_ascii(req, "size");
478 has_size = (*s == '*') ? 0 : 1;
481 error = g_parse_lba(s, pp->lg_sectorsize, &size);
483 errc(EXIT_FAILURE, error, "Invalid size param");
486 s = gctl_get_ascii(req, "start");
487 has_start = (*s == '*') ? 0 : 1;
490 error = g_parse_lba(s, pp->lg_sectorsize, &start);
492 errc(EXIT_FAILURE, error, "Invalid start param");
495 /* No autofill necessary. */
496 if (has_size && has_start && !has_alignment)
499 len = pp->lg_stripesize / pp->lg_sectorsize;
500 if (len > 0 && !has_alignment)
503 /* Adjust parameters to stripeoffset */
504 offset = (pp->lg_stripeoffset / pp->lg_sectorsize) % alignment;
505 start = ALIGNUP(start + offset, alignment);
506 if (size > alignment)
507 size = ALIGNDOWN(size, alignment);
509 s = find_geomcfg(gp, "first");
511 errx(EXIT_FAILURE, "Starting block not found for geom %s",
513 first = (off_t)strtoimax(s, NULL, 0);
514 s = find_geomcfg(gp, "last");
516 errx(EXIT_FAILURE, "Final block not found for geom %s",
518 last = (off_t)strtoimax(s, NULL, 0);
520 a_first = ALIGNUP(first + offset, alignment);
521 last = ALIGNDOWN(last + offset, alignment);
524 while ((pp = find_provider(gp, first)) != NULL) {
525 s = find_provcfg(pp, "start");
526 lba = (off_t)strtoimax(s, NULL, 0);
527 a_lba = ALIGNDOWN(lba + offset, alignment);
528 if (first < a_lba && a_first < a_lba) {
529 /* Free space [first, lba> */
530 len = a_lba - a_first;
533 (uintmax_t)(len - size) < grade) {
537 } else if (has_start) {
538 if (start >= a_first && start < a_lba) {
539 size = a_lba - start;
540 grade = start - a_first;
543 if (grade == ~0ULL || len > size) {
551 s = find_provcfg(pp, "end");
552 first = (off_t)strtoimax(s, NULL, 0) + 1;
554 a_first = ALIGNUP(first + offset, alignment);
556 if (a_first <= last) {
557 /* Free space [first-last] */
558 len = ALIGNDOWN(last - a_first + 1, alignment);
561 (uintmax_t)(len - size) < grade) {
565 } else if (has_start) {
566 if (start >= a_first && start <= last) {
567 size = ALIGNDOWN(last - start + 1, alignment);
568 grade = start - a_first;
571 if (grade == ~0ULL || len > size) {
578 if (grade == ~0ULL) {
579 geom_deletetree(&mesh);
582 start -= offset; /* Return back to real offset */
584 snprintf(ssize, sizeof(ssize), "%jd", (intmax_t)size);
585 gctl_change_param(req, "size", -1, ssize);
586 snprintf(sstart, sizeof(sstart), "%jd", (intmax_t)start);
587 gctl_change_param(req, "start", -1, sstart);
588 geom_deletetree(&mesh);
593 gpart_show_geom(struct ggeom *gp, const char *element, int show_providers)
595 struct gprovider *pp;
596 const char *s, *scheme;
597 off_t first, last, sector, end;
599 int idx, wblocks, wname, wmax;
601 scheme = find_geomcfg(gp, "scheme");
603 errx(EXIT_FAILURE, "Scheme not found for geom %s", gp->lg_name);
604 s = find_geomcfg(gp, "first");
606 errx(EXIT_FAILURE, "Starting block not found for geom %s",
608 first = (off_t)strtoimax(s, NULL, 0);
609 s = find_geomcfg(gp, "last");
611 errx(EXIT_FAILURE, "Final block not found for geom %s",
613 last = (off_t)strtoimax(s, NULL, 0);
615 s = find_geomcfg(gp, "state");
617 errx(EXIT_FAILURE, "State not found for geom %s", gp->lg_name);
618 if (s != NULL && *s != 'C')
620 wmax = strlen(gp->lg_name);
621 if (show_providers) {
622 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
623 wname = strlen(pp->lg_name);
629 pp = LIST_FIRST(&gp->lg_consumer)->lg_provider;
630 secsz = pp->lg_sectorsize;
631 printf("=>%*jd %*jd %*s %s (%s)%s\n",
632 wblocks, (intmax_t)first, wblocks, (intmax_t)(last - first + 1),
634 scheme, fmtsize(pp->lg_mediasize),
635 s ? " [CORRUPT]": "");
637 while ((pp = find_provider(gp, first)) != NULL) {
638 s = find_provcfg(pp, "start");
639 sector = (off_t)strtoimax(s, NULL, 0);
641 s = find_provcfg(pp, "end");
642 end = (off_t)strtoimax(s, NULL, 0);
643 length = end - sector + 1;
645 s = find_provcfg(pp, "index");
647 if (first < sector) {
648 printf(" %*jd %*jd %*s - free - (%s)\n",
649 wblocks, (intmax_t)first, wblocks,
650 (intmax_t)(sector - first), wname, "",
651 fmtsize((sector - first) * secsz));
653 if (show_providers) {
654 printf(" %*jd %*jd %*s %s %s (%s)\n",
655 wblocks, (intmax_t)sector, wblocks,
656 (intmax_t)length, wname, pp->lg_name,
657 find_provcfg(pp, element), fmtattrib(pp),
658 fmtsize(pp->lg_mediasize));
660 printf(" %*jd %*jd %*d %s %s (%s)\n",
661 wblocks, (intmax_t)sector, wblocks,
662 (intmax_t)length, wname, idx,
663 find_provcfg(pp, element), fmtattrib(pp),
664 fmtsize(pp->lg_mediasize));
668 length = last - first + 1;
669 printf(" %*jd %*jd %*s - free - (%s)\n",
670 wblocks, (intmax_t)first, wblocks, (intmax_t)length,
672 fmtsize(length * secsz));
678 gpart_show_hasopt(struct gctl_req *req, const char *opt, const char *elt)
681 if (!gctl_get_int(req, "%s", opt))
685 errx(EXIT_FAILURE, "-l and -r are mutually exclusive");
691 gpart_show(struct gctl_req *req, unsigned int fl __unused)
694 struct gclass *classp;
696 const char *element, *name;
697 int error, i, nargs, show_providers;
700 if (gpart_show_hasopt(req, "show_label", element))
702 if (gpart_show_hasopt(req, "show_rawtype", element))
707 name = gctl_get_ascii(req, "class");
710 error = geom_gettree(&mesh);
712 errc(EXIT_FAILURE, error, "Cannot get GEOM tree");
713 classp = find_class(&mesh, name);
714 if (classp == NULL) {
715 geom_deletetree(&mesh);
716 errx(EXIT_FAILURE, "Class %s not found.", name);
718 show_providers = gctl_get_int(req, "show_providers");
719 nargs = gctl_get_int(req, "nargs");
721 for (i = 0; i < nargs; i++) {
722 name = gctl_get_ascii(req, "arg%d", i);
723 gp = find_geom(classp, name);
725 gpart_show_geom(gp, element, show_providers);
727 errx(EXIT_FAILURE, "No such geom: %s.", name);
730 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) {
731 gpart_show_geom(gp, element, show_providers);
734 geom_deletetree(&mesh);
738 gpart_backup(struct gctl_req *req, unsigned int fl __unused)
741 struct gclass *classp;
742 struct gprovider *pp;
744 const char *s, *scheme;
747 int error, i, windex, wblocks, wtype;
749 if (gctl_get_int(req, "nargs") != 1)
750 errx(EXIT_FAILURE, "Invalid number of arguments.");
751 error = geom_gettree(&mesh);
753 errc(EXIT_FAILURE, error, "Cannot get GEOM tree");
754 s = gctl_get_ascii(req, "class");
757 classp = find_class(&mesh, s);
758 if (classp == NULL) {
759 geom_deletetree(&mesh);
760 errx(EXIT_FAILURE, "Class %s not found.", s);
762 s = gctl_get_ascii(req, "arg0");
765 gp = find_geom(classp, s);
767 errx(EXIT_FAILURE, "No such geom: %s.", s);
768 scheme = find_geomcfg(gp, "scheme");
771 pp = LIST_FIRST(&gp->lg_consumer)->lg_provider;
772 s = find_geomcfg(gp, "last");
777 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
778 s = find_provcfg(pp, "type");
783 s = find_geomcfg(gp, "entries");
787 printf("%s %s\n", scheme, s);
788 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
789 s = find_provcfg(pp, "start");
790 sector = (off_t)strtoimax(s, NULL, 0);
792 s = find_provcfg(pp, "end");
793 end = (off_t)strtoimax(s, NULL, 0);
794 length = end - sector + 1;
796 s = find_provcfg(pp, "label");
797 printf("%-*s %*s %*jd %*jd %s %s\n",
798 windex, find_provcfg(pp, "index"),
799 wtype, find_provcfg(pp, "type"),
800 wblocks, (intmax_t)sector,
801 wblocks, (intmax_t)length,
802 (s != NULL) ? s: "", fmtattrib(pp));
804 geom_deletetree(&mesh);
808 skip_line(const char *p)
814 if (isspace(*p) == 0)
822 gpart_sighndl(int sig __unused)
828 gpart_restore(struct gctl_req *req, unsigned int fl __unused)
831 struct gclass *classp;
834 struct sigaction si_sa;
835 const char *s, *flags, *errstr, *label;
836 char **ap, *argv[6], line[BUFSIZ], *pline;
837 int error, forced, i, l, nargs, created, rl;
840 nargs = gctl_get_int(req, "nargs");
842 errx(EXIT_FAILURE, "Invalid number of arguments.");
844 forced = gctl_get_int(req, "force");
845 flags = gctl_get_ascii(req, "flags");
846 rl = gctl_get_int(req, "restore_labels");
847 s = gctl_get_ascii(req, "class");
850 error = geom_gettree(&mesh);
852 errc(EXIT_FAILURE, error, "Cannot get GEOM tree");
853 classp = find_class(&mesh, s);
854 if (classp == NULL) {
855 geom_deletetree(&mesh);
856 errx(EXIT_FAILURE, "Class %s not found.", s);
859 sigemptyset(&si_sa.sa_mask);
861 si_sa.sa_handler = gpart_sighndl;
862 if (sigaction(SIGINT, &si_sa, 0) == -1)
863 err(EXIT_FAILURE, "sigaction SIGINT");
866 /* destroy existent partition table before restore */
867 for (i = 0; i < nargs; i++) {
868 s = gctl_get_ascii(req, "arg%d", i);
869 gp = find_geom(classp, s);
871 r = gctl_get_handle();
872 gctl_ro_param(r, "class", -1,
874 gctl_ro_param(r, "verb", -1, "destroy");
875 gctl_ro_param(r, "flags", -1, "restore");
876 gctl_ro_param(r, "force", sizeof(forced),
878 gctl_ro_param(r, "arg0", -1, s);
879 errstr = gctl_issue(r);
880 if (errstr != NULL && errstr[0] != '\0') {
881 gpart_print_error(errstr);
890 while (undo_restore == 0 &&
891 fgets(line, sizeof(line) - 1, stdin) != NULL) {
892 /* Format of backup entries:
893 * <scheme name> <number of entries>
894 * <index> <type> <start> <size> [label] ['['attrib[,attrib]']']
896 pline = (char *)line;
897 pline[strlen(line) - 1] = 0;
898 if (skip_line(pline))
901 (*ap = strsep(&pline, " \t")) != NULL;)
902 if (**ap != '\0' && ++ap >= &argv[6])
905 label = pline = NULL;
906 if (l == 1 || l == 2) { /* create table */
908 errx(EXIT_FAILURE, "Incorrect backup format.");
910 n = strtoimax(argv[1], NULL, 0);
911 for (i = 0; i < nargs; i++) {
912 s = gctl_get_ascii(req, "arg%d", i);
913 r = gctl_get_handle();
914 gctl_ro_param(r, "class", -1,
916 gctl_ro_param(r, "verb", -1, "create");
917 gctl_ro_param(r, "scheme", -1, argv[0]);
919 gctl_ro_param(r, "entries",
921 gctl_ro_param(r, "flags", -1, "restore");
922 gctl_ro_param(r, "arg0", -1, s);
923 errstr = gctl_issue(r);
924 if (errstr != NULL && errstr[0] != '\0') {
925 gpart_print_error(errstr);
933 } else if (l < 4 || created == 0)
934 errx(EXIT_FAILURE, "Incorrect backup format.");
936 if (strchr(argv[4], '[') == NULL)
944 /* Add partitions to each table */
945 for (i = 0; i < nargs; i++) {
946 s = gctl_get_ascii(req, "arg%d", i);
947 r = gctl_get_handle();
948 n = strtoimax(argv[0], NULL, 0);
949 gctl_ro_param(r, "class", -1, classp->lg_name);
950 gctl_ro_param(r, "verb", -1, "add");
951 gctl_ro_param(r, "flags", -1, "restore");
952 gctl_ro_param(r, GPART_PARAM_INDEX, sizeof(n), &n);
953 gctl_ro_param(r, "type", -1, argv[1]);
954 gctl_ro_param(r, "start", -1, argv[2]);
955 gctl_ro_param(r, "size", -1, argv[3]);
956 if (rl != 0 && label != NULL)
957 gctl_ro_param(r, "label", -1, argv[4]);
958 gctl_ro_param(r, "alignment", -1, GPART_AUTOFILL);
959 gctl_ro_param(r, "arg0", -1, s);
960 error = gpart_autofill(r);
962 errc(EXIT_FAILURE, error, "autofill");
963 errstr = gctl_issue(r);
964 if (errstr != NULL && errstr[0] != '\0') {
965 gpart_print_error(errstr);
971 if (pline == NULL || *pline != '[')
976 (*ap = strsep(&pline, ",]")) != NULL;)
977 if (**ap != '\0' && ++ap >= &argv[6])
979 for (i = 0; i < nargs; i++) {
981 s = gctl_get_ascii(req, "arg%d", i);
983 r = gctl_get_handle();
984 gctl_ro_param(r, "class", -1, classp->lg_name);
985 gctl_ro_param(r, "verb", -1, "set");
986 gctl_ro_param(r, "flags", -1, "restore");
987 gctl_ro_param(r, GPART_PARAM_INDEX,
989 gctl_ro_param(r, "attrib", -1, argv[--l]);
990 gctl_ro_param(r, "arg0", -1, s);
991 errstr = gctl_issue(r);
992 if (errstr != NULL && errstr[0] != '\0') {
993 gpart_print_error(errstr);
1003 /* commit changes if needed */
1004 if (strchr(flags, 'C') != NULL) {
1005 for (i = 0; i < nargs; i++) {
1006 s = gctl_get_ascii(req, "arg%d", i);
1007 r = gctl_get_handle();
1008 gctl_ro_param(r, "class", -1, classp->lg_name);
1009 gctl_ro_param(r, "verb", -1, "commit");
1010 gctl_ro_param(r, "arg0", -1, s);
1011 errstr = gctl_issue(r);
1012 if (errstr != NULL && errstr[0] != '\0') {
1013 gpart_print_error(errstr);
1021 geom_deletetree(&mesh);
1025 for (i = 0; i < nargs; i++) {
1026 s = gctl_get_ascii(req, "arg%d", i);
1027 r = gctl_get_handle();
1028 gctl_ro_param(r, "class", -1, classp->lg_name);
1029 gctl_ro_param(r, "verb", -1, "undo");
1030 gctl_ro_param(r, "arg0", -1, s);
1035 geom_deletetree(&mesh);
1040 gpart_bootfile_read(const char *bootfile, ssize_t *size)
1046 if (stat(bootfile, &sb) == -1)
1047 err(EXIT_FAILURE, "%s", bootfile);
1048 if (!S_ISREG(sb.st_mode))
1049 errx(EXIT_FAILURE, "%s: not a regular file", bootfile);
1050 if (sb.st_size == 0)
1051 errx(EXIT_FAILURE, "%s: empty file", bootfile);
1052 if (*size > 0 && sb.st_size > *size)
1053 errx(EXIT_FAILURE, "%s: file too big (%zu limit)", bootfile,
1058 fd = open(bootfile, O_RDONLY);
1060 err(EXIT_FAILURE, "%s", bootfile);
1061 code = malloc(*size);
1063 err(EXIT_FAILURE, NULL);
1064 if (read(fd, code, *size) != *size)
1065 err(EXIT_FAILURE, "%s", bootfile);
1072 gpart_write_partcode(struct ggeom *gp, int idx, void *code, ssize_t size)
1075 struct gprovider *pp;
1081 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
1082 s = find_provcfg(pp, "index");
1090 snprintf(dsf, sizeof(dsf), "/dev/%s", pp->lg_name);
1091 fd = open(dsf, O_WRONLY);
1093 err(EXIT_FAILURE, "%s", dsf);
1094 if (lseek(fd, size, SEEK_SET) != size)
1095 errx(EXIT_FAILURE, "%s: not enough space", dsf);
1096 if (lseek(fd, 0, SEEK_SET) != 0)
1097 err(EXIT_FAILURE, "%s", dsf);
1100 * When writing to a disk device, the write must be
1101 * sector aligned and not write to any partial sectors,
1102 * so round up the buffer size to the next sector and zero it.
1104 bsize = (size + pp->lg_sectorsize - 1) /
1105 pp->lg_sectorsize * pp->lg_sectorsize;
1106 buf = calloc(1, bsize);
1108 err(EXIT_FAILURE, "%s", dsf);
1109 bcopy(code, buf, size);
1110 if (write(fd, buf, bsize) != bsize)
1111 err(EXIT_FAILURE, "%s", dsf);
1115 errx(EXIT_FAILURE, "invalid partition index");
1119 gpart_write_partcode_vtoc8(struct ggeom *gp, int idx, void *code)
1122 struct gprovider *pp;
1127 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
1128 s = find_provcfg(pp, "index");
1131 if (idx != 0 && atoi(s) != idx)
1133 snprintf(dsf, sizeof(dsf), "/dev/%s", pp->lg_name);
1134 if (pp->lg_sectorsize != sizeof(struct vtoc8))
1135 errx(EXIT_FAILURE, "%s: unexpected sector "
1136 "size (%d)\n", dsf, pp->lg_sectorsize);
1137 fd = open(dsf, O_WRONLY);
1139 err(EXIT_FAILURE, "%s", dsf);
1140 if (lseek(fd, VTOC_BOOTSIZE, SEEK_SET) != VTOC_BOOTSIZE)
1143 * We ignore the first VTOC_BOOTSIZE bytes of boot code in
1144 * order to avoid overwriting the label.
1146 if (lseek(fd, sizeof(struct vtoc8), SEEK_SET) !=
1147 sizeof(struct vtoc8))
1148 err(EXIT_FAILURE, "%s", dsf);
1149 if (write(fd, (caddr_t)code + sizeof(struct vtoc8),
1150 VTOC_BOOTSIZE - sizeof(struct vtoc8)) != VTOC_BOOTSIZE -
1151 sizeof(struct vtoc8))
1152 err(EXIT_FAILURE, "%s", dsf);
1155 if (idx != 0 && atoi(s) == idx)
1159 errx(EXIT_FAILURE, "%s: no partitions", gp->lg_name);
1163 gpart_bootcode(struct gctl_req *req, unsigned int fl)
1166 struct gclass *classp;
1169 void *bootcode, *partcode;
1170 size_t bootsize, partsize;
1171 int error, idx, vtoc8;
1173 if (gctl_has_param(req, GPART_PARAM_BOOTCODE)) {
1174 s = gctl_get_ascii(req, GPART_PARAM_BOOTCODE);
1175 bootsize = 800 * 1024; /* Arbitrary limit. */
1176 bootcode = gpart_bootfile_read(s, &bootsize);
1177 error = gctl_change_param(req, GPART_PARAM_BOOTCODE, bootsize,
1180 errc(EXIT_FAILURE, error, "internal error");
1186 s = gctl_get_ascii(req, "class");
1189 error = geom_gettree(&mesh);
1191 errc(EXIT_FAILURE, error, "Cannot get GEOM tree");
1192 classp = find_class(&mesh, s);
1193 if (classp == NULL) {
1194 geom_deletetree(&mesh);
1195 errx(EXIT_FAILURE, "Class %s not found.", s);
1197 if (gctl_get_int(req, "nargs") != 1)
1198 errx(EXIT_FAILURE, "Invalid number of arguments.");
1199 s = gctl_get_ascii(req, "arg0");
1202 gp = find_geom(classp, s);
1204 errx(EXIT_FAILURE, "No such geom: %s.", s);
1205 s = find_geomcfg(gp, "scheme");
1207 errx(EXIT_FAILURE, "Scheme not found for geom %s", gp->lg_name);
1209 if (strcmp(s, "VTOC8") == 0)
1212 if (gctl_has_param(req, GPART_PARAM_PARTCODE)) {
1213 s = gctl_get_ascii(req, GPART_PARAM_PARTCODE);
1214 partsize = vtoc8 != 0 ? VTOC_BOOTSIZE : bootsize * 1024;
1215 partcode = gpart_bootfile_read(s, &partsize);
1216 error = gctl_delete_param(req, GPART_PARAM_PARTCODE);
1218 errc(EXIT_FAILURE, error, "internal error");
1224 if (gctl_has_param(req, GPART_PARAM_INDEX)) {
1225 if (partcode == NULL)
1226 errx(EXIT_FAILURE, "-i is only valid with -p");
1227 idx = (int)gctl_get_intmax(req, GPART_PARAM_INDEX);
1229 errx(EXIT_FAILURE, "invalid partition index");
1230 error = gctl_delete_param(req, GPART_PARAM_INDEX);
1232 errc(EXIT_FAILURE, error, "internal error");
1236 if (partcode != NULL) {
1239 errx(EXIT_FAILURE, "missing -i option");
1240 gpart_write_partcode(gp, idx, partcode, partsize);
1242 if (partsize != VTOC_BOOTSIZE)
1243 errx(EXIT_FAILURE, "invalid bootcode");
1244 gpart_write_partcode_vtoc8(gp, idx, partcode);
1247 if (bootcode == NULL)
1248 errx(EXIT_FAILURE, "no -b nor -p");
1250 if (bootcode != NULL)
1251 gpart_issue(req, fl);
1253 geom_deletetree(&mesh);
1257 gpart_print_error(const char *errstr)
1262 error = strtol(errstr, &errmsg, 0);
1263 if (errmsg != errstr) {
1264 while (errmsg[0] == ' ')
1266 if (errmsg[0] != '\0')
1267 warnc(error, "%s", errmsg);
1271 warnx("%s", errmsg);
1275 gpart_issue(struct gctl_req *req, unsigned int fl __unused)
1281 if (gctl_get_int(req, "nargs") != 1)
1282 errx(EXIT_FAILURE, "Invalid number of arguments.");
1283 (void)gctl_delete_param(req, "nargs");
1285 /* autofill parameters (if applicable). */
1286 error = gpart_autofill(req);
1288 warnc(error, "autofill");
1289 status = EXIT_FAILURE;
1293 bzero(buf, sizeof(buf));
1294 gctl_rw_param(req, "output", sizeof(buf), buf);
1295 errstr = gctl_issue(req);
1296 if (errstr == NULL || errstr[0] == '\0') {
1299 status = EXIT_SUCCESS;
1303 gpart_print_error(errstr);
1304 status = EXIT_FAILURE;