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
35 * Copyright (c) 1987, 1993
36 * The Regents of the University of California. All rights reserved.
38 * This code is derived from software contributed to Berkeley by
39 * Symmetric Computer Systems.
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
44 * 1. Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 * 3. Neither the name of the University nor the names of its contributors
50 * may be used to endorse or promote products derived from this software
51 * without specific prior written permission.
53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
65 * @(#)disklabel.c 1.2 (Symmetric) 11/28/85
66 * @(#)disklabel.c 8.2 (Berkeley) 1/7/94
67 * $FreeBSD: src/sbin/disklabel/disklabel.c,v 1.28.2.15 2003/01/24 16:18:16 des Exp $
70 #include <sys/param.h>
75 #include <sys/disklabel64.h>
76 #include <sys/diskslice.h>
77 #include <sys/diskmbr.h>
78 #include <sys/dtype.h>
79 #include <sys/sysctl.h>
83 #include <vfs/ufs/dinode.h>
84 #include <vfs/ufs/fs.h>
97 #include "pathnames.h"
99 extern uint32_t crc32(const void *buf
, size_t size
);
101 static void makelabel(const char *, const char *, struct disklabel64
*);
102 static int writelabel(int, struct disklabel64
*);
103 static void l_perror(const char *);
104 static void display(FILE *, const struct disklabel64
*);
105 static int edit(struct disklabel64
*, int);
106 static int editit(void);
107 static char *skip(char *);
108 static char *word(char *);
109 static int parse_field_val(char **, char **, u_int64_t
*, int);
110 static int getasciilabel(FILE *, struct disklabel64
*);
111 static int getasciipartspec(char *, struct disklabel64
*, int, int, uint32_t);
112 static int getasciipartuuid(char *, struct disklabel64
*, int, int, uint32_t);
113 static int checklabel(struct disklabel64
*);
114 static void Warning(const char *, ...) __printflike(1, 2);
115 static void usage(void);
116 static struct disklabel64
*getvirginlabel(void);
117 static struct disklabel64
*readlabel(int);
118 static struct disklabel64
*makebootarea(int);
120 #define DEFEDITOR _PATH_VI
121 #define streq(a,b) (strcmp(a,b) == 0)
124 static char *specname
;
125 static char tmpfil
[] = PATH_TMPFILE
;
127 static struct disklabel64 lab
;
129 #define MAX_PART ('z')
130 #define MAX_NUM_PARTS (1 + MAX_PART - 'a')
131 static char part_size_type
[MAX_NUM_PARTS
];
132 static char part_offset_type
[MAX_NUM_PARTS
];
133 static int part_set
[MAX_NUM_PARTS
];
135 static int installboot
; /* non-zero if we should install a boot program */
136 static int boot1size
;
137 static int boot1lsize
;
138 static int boot2size
;
139 static char *boot1buf
;
140 static char *boot2buf
;
141 static char *boot1path
;
142 static char *boot2path
;
145 UNSPEC
, EDIT
, NOWRITE
, READ
, RESTORE
, WRITE
, WRITEABLE
, WRITEBOOT
150 static int disable_write
; /* set to disable writing to disk label */
154 #define OPTIONS "BNRWb:denrs:Vw"
156 #define OPTIONS "BNRWb:enrs:Vw"
160 main(int argc
, char *argv
[])
162 struct disklabel64
*lp
;
164 int ch
, f
= 0, flag
, error
= 0;
165 const char *name
= NULL
;
166 const char *dtype
= NULL
;
168 while ((ch
= getopt(argc
, argv
, OPTIONS
)) != -1)
238 dkname
= getdevpath(argv
[0], 0);
240 f
= open(specname
, op
== READ
? O_RDONLY
: O_RDWR
);
242 err(4, "%s", specname
);
258 if (ioctl(f
, DIOCWLABEL
, (char *)&flag
) < 0)
259 err(4, "ioctl DIOCWLABEL");
267 error
= checklabel(lp
);
271 if (installboot
&& argc
== 3) {
272 makelabel(argv
[2], 0, &lab
);
276 * We only called makelabel() for its side effect
277 * of setting the bootstrap file names. Discard
278 * all changes to `lab' so that all values in the
279 * final label come from the ASCII label.
281 bzero((char *)&lab
, sizeof(lab
));
285 if (!(t
= fopen(argv
[1], "r")))
286 err(4, "%s", argv
[1]);
287 if (!getasciilabel(t
, &lab
))
289 lp
= makebootarea(f
);
290 bcopy(&lab
.d_magic
, &lp
->d_magic
,
291 sizeof(lab
) - offsetof(struct disklabel64
, d_magic
));
292 error
= writelabel(f
, lp
);
306 makelabel(dtype
, name
, &lab
);
307 lp
= makebootarea(f
);
308 bcopy(&lab
.d_magic
, &lp
->d_magic
,
309 sizeof(lab
) - offsetof(struct disklabel64
, d_magic
));
310 if (checklabel(lp
) == 0)
311 error
= writelabel(f
, lp
);
316 if (ioctl(f
, DIOCWLABEL
, (char *)&flag
) < 0)
317 err(4, "ioctl DIOCWLABEL");
322 struct disklabel64 tlab
;
327 makelabel(argv
[1], 0, &lab
);
328 lp
= makebootarea(f
);
329 bcopy(&tlab
.d_magic
, &lp
->d_magic
,
330 sizeof(tlab
) - offsetof(struct disklabel64
, d_magic
));
331 if (checklabel(lp
) == 0)
332 error
= writelabel(f
, lp
);
340 * Construct a prototype disklabel from /etc/disktab. As a side
341 * effect, set the names of the primary and secondary boot files
345 makelabel(const char *type
, const char *name
, struct disklabel64
*lp
)
347 struct disklabel64
*dp
;
349 if (streq(type
, "auto"))
350 dp
= getvirginlabel();
352 errx(1, "no disktab(5) support yet; only 'auto' allowed");
356 strlcpy((char *)lp
->d_packname
, name
, sizeof(lp
->d_packname
));
360 writelabel(int f
, struct disklabel64
*lp
)
362 struct disklabel64
*blp
;
368 lpsize
= offsetof(struct disklabel64
, d_partitions
[lp
->d_npartitions
]);
369 lpcrcsize
= lpsize
- offsetof(struct disklabel64
, d_magic
);
372 Warning("write to disk label suppressed - label was as follows:");
376 lp
->d_magic
= DISKMAGIC64
;
378 lp
->d_crc
= crc32(&lp
->d_magic
, lpcrcsize
);
381 * Make sure the boot area is not too large
384 int lpbsize
= (int)(lp
->d_pbase
- lp
->d_bbase
);
385 if (lp
->d_pbase
== 0) {
386 errx(1, "no space was set aside in "
387 "the disklabel for boot2!");
389 if (boot2size
> lpbsize
) {
390 errx(1, "label did not reserve enough "
391 "space for boot! %d/%d",
397 * First set the kernel disk label,
398 * then write a label to the raw disk.
399 * If the SDINFO ioctl fails because it is
400 * unimplemented, keep going; otherwise, the kernel
401 * consistency checks may prevent us from changing
402 * the current (in-core) label.
404 if (ioctl(f
, DIOCSDINFO64
, lp
) < 0 &&
405 errno
!= ENODEV
&& errno
!= ENOTTY
) {
406 l_perror("ioctl DIOCSDINFO");
409 lseek(f
, (off_t
)0, SEEK_SET
);
412 * The disklabel embeds areas which we may not
413 * have wanted to change. Merge those areas in
416 blp
= makebootarea(f
);
418 bcopy(&lp
->d_magic
, &blp
->d_magic
,
420 offsetof(struct disklabel64
, d_magic
));
424 * write enable label sector before write
425 * (if necessary), disable after writing.
428 if (ioctl(f
, DIOCWLABEL
, &flag
) < 0)
429 warn("ioctl DIOCWLABEL");
431 r
= write(f
, boot1buf
, boot1lsize
);
432 if (r
!= (ssize_t
)boot1lsize
) {
437 * Output the remainder of the disklabel
440 lseek(f
, lp
->d_bbase
, 0);
441 r
= write(f
, boot2buf
, boot2size
);
442 if (r
!= boot2size
) {
448 ioctl(f
, DIOCWLABEL
, &flag
);
449 } else if (ioctl(f
, DIOCWDINFO64
, lp
) < 0) {
450 l_perror("ioctl DIOCWDINFO64");
458 l_perror(const char *s
)
463 warnx("%s: no disk label on disk;", s
);
464 fprintf(stderr
, "add \"-r\" to install initial label\n");
468 warnx("%s: label magic number or checksum is wrong!", s
);
469 fprintf(stderr
, "(disklabel or kernel is out of date?)\n");
473 warnx("%s: open partition would move or shrink", s
);
477 warnx("%s: the disk already has a label of a different type,\n"
478 "probably a 32 bit disklabel. It must be cleaned out "
489 * Fetch disklabel for disk.
490 * Use ioctl to get label unless -r flag is given.
492 static struct disklabel64
*
495 struct disklabel64
*lp
;
501 * Allocate space for the label. The boot1 code, if any,
502 * is embedded in the label. The label overlaps the boot1
505 lp
= makebootarea(f
);
506 lpcrcsize
= offsetof(struct disklabel64
,
507 d_partitions
[lp
->d_npartitions
]) -
508 offsetof(struct disklabel64
, d_magic
);
511 if (lp
->d_magic
!= DISKMAGIC64
)
512 errx(1, "bad pack magic number");
513 if (lp
->d_npartitions
> MAXPARTITIONS64
||
514 savecrc
!= crc32(&lp
->d_magic
, lpcrcsize
)
516 errx(1, "corrupted disklabel64");
521 * Just use a static structure to hold the label. Note
522 * that DIOCSDINFO64 does not overwrite the boot1 area
523 * even though it is part of the disklabel64 structure.
527 if (ioctl(f
, DIOCGDVIRGIN64
, lp
) < 0) {
528 l_perror("ioctl DIOCGDVIRGIN64");
532 if (ioctl(f
, DIOCGDINFO64
, lp
) < 0) {
533 l_perror("ioctl DIOCGDINFO64");
542 * Construct a boot area for boot1 and boot2 and return the location of
543 * the label within the area. The caller will overwrite the label so
544 * we don't actually have to read it.
546 static struct disklabel64
*
549 struct disklabel64
*lp
;
550 struct partinfo info
;
556 if (ioctl(f
, DIOCGPART
, &info
) == 0)
557 secsize
= info
.media_blksize
;
561 if (boot1buf
== NULL
) {
564 rsize
= roundup2(sizeof(struct disklabel64
), secsize
);
565 boot1size
= offsetof(struct disklabel64
, d_magic
);
567 boot1buf
= malloc(rsize
);
568 bzero(boot1buf
, rsize
);
569 r
= read(f
, boot1buf
, rsize
);
570 if (r
!= (int)rsize
) {
572 err(4, "%s", specname
);
575 lp
= (void *)boot1buf
;
577 if (installboot
== 0)
580 if (boot2buf
== NULL
) {
581 boot2size
= BOOT2SIZE64
;
582 boot2buf
= malloc(boot2size
);
583 bzero(boot2buf
, boot2size
);
587 * If installing the boot code, read it into the appropriate portions
590 if (boot1path
== NULL
)
591 asprintf(&boot1path
, "%s/boot1_64", _PATH_BOOTDIR
);
592 if (boot2path
== NULL
)
593 asprintf(&boot2path
, "%s/boot2_64", _PATH_BOOTDIR
);
595 if ((fd
= open(boot1path
, O_RDONLY
)) < 0)
596 err(4, "%s", boot1path
);
597 if (fstat(fd
, &st
) < 0)
598 err(4, "%s", boot1path
);
599 if (st
.st_size
> boot1size
)
600 err(4, "%s must be exactly %d bytes!", boot1path
, boot1size
);
601 if (read(fd
, boot1buf
, boot1size
) != boot1size
)
602 err(4, "%s must be exactly %d bytes!", boot1path
, boot1size
);
605 if ((fd
= open(boot2path
, O_RDONLY
)) < 0)
606 err(4, "%s", boot2path
);
607 if (fstat(fd
, &st
) < 0)
608 err(4, "%s", boot2path
);
609 if (st
.st_size
> boot2size
)
610 err(4, "%s must be <= %d bytes!", boot2path
, boot2size
);
611 if ((r
= read(fd
, boot2buf
, boot2size
)) < 1)
612 err(4, "%s is empty!", boot2path
);
613 boot2size
= roundup2(r
, secsize
);
617 * XXX dangerously dedicated support goes here XXX
623 display(FILE *f
, const struct disklabel64
*lp
)
625 const struct partition64
*pp
;
632 * Use a human readable block size if possible. This is for
633 * display and editing purposes only.
635 if (lp
->d_align
> 1024)
638 blksize
= lp
->d_align
;
640 fprintf(f
, "# %s:\n", specname
);
642 fprintf(f
, "# Calculated informational fields for the slice:\n");
644 fprintf(f
, "# boot space: %10ju bytes\n",
645 (intmax_t)(lp
->d_pbase
- lp
->d_bbase
));
646 fprintf(f
, "# data space: %10ju blocks\t# %6.2f MB (%ju bytes)\n",
647 (intmax_t)(lp
->d_pstop
- lp
->d_pbase
) / blksize
,
648 (double)(lp
->d_pstop
- lp
->d_pbase
) / 1024.0 / 1024.0,
649 (intmax_t)(lp
->d_pstop
- lp
->d_pbase
));
651 fprintf(f
, "# NOTE: The partition data base and stop are physically\n");
652 fprintf(f
, "# aligned instead of slice-relative aligned.\n");
654 fprintf(f
, "# All byte equivalent offsets must be aligned.\n");
657 uuid_to_string(&lp
->d_stor_uuid
, &str
, NULL
);
658 fprintf(f
, "diskid: %s\n", str
? str
: "<unknown>");
661 fprintf(f
, "label: %s\n", lp
->d_packname
);
662 fprintf(f
, "boot2 data base: 0x%012jx\n", (intmax_t)lp
->d_bbase
);
663 fprintf(f
, "partitions data base: 0x%012jx\n", (intmax_t)lp
->d_pbase
);
664 fprintf(f
, "partitions data stop: 0x%012jx\n", (intmax_t)lp
->d_pstop
);
665 fprintf(f
, "backup label: 0x%012jx\n", (intmax_t)lp
->d_abase
);
666 fprintf(f
, "total size: 0x%012jx\t# %6.2f MB\n",
667 (intmax_t)lp
->d_total_size
,
668 (double)lp
->d_total_size
/ 1024.0 / 1024.0);
669 fprintf(f
, "alignment: %u\n", lp
->d_align
);
670 fprintf(f
, "display block size: %u\t# for partition display and edit only\n",
674 fprintf(f
, "%u partitions:\n", lp
->d_npartitions
);
675 fprintf(f
, "# size offset fstype fsuuid\n");
677 for (part
= 0; part
< lp
->d_npartitions
; part
++) {
678 pp
= &lp
->d_partitions
[part
];
679 const u_long onemeg
= 1024 * 1024;
681 if (pp
->p_bsize
== 0)
684 fprintf(f
, " %c: ", 'a' + part
);
686 if (pp
->p_bsize
% lp
->d_align
)
687 fprintf(f
, "%10s ", "ILLEGAL");
689 fprintf(f
, "%10ju ", (intmax_t)pp
->p_bsize
/ blksize
);
691 if ((pp
->p_boffset
- lp
->d_pbase
) % lp
->d_align
)
692 fprintf(f
, "%10s ", "ILLEGAL");
695 (intmax_t)(pp
->p_boffset
- lp
->d_pbase
) / blksize
);
697 if (pp
->p_fstype
< FSMAXTYPES
)
698 fprintf(f
, "%8.8s", fstypenames
[pp
->p_fstype
]);
700 fprintf(f
, "%8d", pp
->p_fstype
);
701 fprintf(f
, "\t# %11.3fMB", (double)pp
->p_bsize
/ onemeg
);
704 for (part
= 0; part
< lp
->d_npartitions
; part
++) {
705 pp
= &lp
->d_partitions
[part
];
707 if (pp
->p_bsize
== 0)
710 if (uuid_is_nil(&lp
->d_stor_uuid
, NULL
) == 0) {
711 fprintf(f
, " %c-stor_uuid: ", 'a' + part
);
713 uuid_to_string(&pp
->p_stor_uuid
, &str
, NULL
);
715 fprintf(f
, "%s", str
);
722 fprintf(f
, "# EXAMPLE\n");
723 fprintf(f
, "#a: 4g 0 4.2BSD\n");
724 fprintf(f
, "#a: * * 4.2BSD\n");
731 edit(struct disklabel64
*lp
, int f
)
734 struct disklabel64 label
;
737 if ((fd
= mkstemp(tmpfil
)) == -1 ||
738 (fp
= fdopen(fd
, "w")) == NULL
) {
739 warnx("can't create %s", tmpfil
);
747 fp
= fopen(tmpfil
, "r");
749 warnx("can't reopen %s for reading", tmpfil
);
752 bzero((char *)&label
, sizeof(label
));
753 if (getasciilabel(fp
, &label
)) {
755 if (writelabel(f
, lp
) == 0) {
762 printf("re-edit the label? [y]: "); fflush(stdout
);
764 if (c
!= EOF
&& c
!= (int)'\n')
765 while (getchar() != (int)'\n')
781 omask
= sigblock(sigmask(SIGINT
)|sigmask(SIGQUIT
)|sigmask(SIGHUP
));
782 while ((pid
= fork()) < 0) {
783 if (errno
== EPROCLIM
) {
784 warnx("you have too many processes");
787 if (errno
!= EAGAIN
) {
797 if ((ed
= getenv("EDITOR")) == NULL
)
799 execlp(ed
, ed
, tmpfil
, NULL
);
802 while ((xpid
= wait(&status
)) >= 0)
813 while (*cp
!= '\0' && isspace(*cp
))
815 if (*cp
== '\0' || *cp
== '#')
825 while (*cp
!= '\0' && !isspace(*cp
) && *cp
!= '#')
827 if ((c
= *cp
) != '\0') {
836 * Read an ascii label in from fd f,
837 * in the same format as that put out by display(),
841 getasciilabel(FILE *f
, struct disklabel64
*lp
)
845 char *tp
, line
[BUFSIZ
];
847 uint32_t blksize
= 0;
849 int lineno
= 0, errors
= 0;
852 bzero(&part_set
, sizeof(part_set
));
853 bzero(&part_size_type
, sizeof(part_size_type
));
854 bzero(&part_offset_type
, sizeof(part_offset_type
));
855 while (fgets(line
, sizeof(line
) - 1, f
)) {
857 if ((cp
= strchr(line
,'\n')) != NULL
)
862 tp
= strchr(cp
, ':');
864 fprintf(stderr
, "line %d: syntax error\n", lineno
);
868 *tp
++ = '\0', tp
= skip(tp
);
869 if (sscanf(cp
, "%lu partitions", &v
) == 1) {
870 if (v
== 0 || v
> MAXPARTITIONS64
) {
872 "line %d: bad # of partitions\n", lineno
);
873 lp
->d_npartitions
= MAXPARTITIONS64
;
876 lp
->d_npartitions
= v
;
882 if (streq(cp
, "diskid")) {
884 uuid_from_string(tp
, &lp
->d_stor_uuid
, &status
);
885 if (status
!= uuid_s_ok
) {
887 "line %d: %s: illegal UUID\n",
893 if (streq(cp
, "label")) {
894 strlcpy((char *)lp
->d_packname
, tp
, sizeof(lp
->d_packname
));
898 if (streq(cp
, "alignment")) {
899 v
= strtoul(tp
, NULL
, 0);
900 if (v
<= 0 || (v
& DEV_BMASK
) != 0 || v
> 1024*1024) {
902 "line %d: %s: bad alignment\n",
910 if (streq(cp
, "total size")) {
911 vv
= strtoull(tp
, NULL
, 0);
912 if (vv
== 0 || vv
== (uint64_t)-1) {
913 fprintf(stderr
, "line %d: %s: bad %s\n",
917 lp
->d_total_size
= vv
;
921 if (streq(cp
, "boot2 data base")) {
922 vv
= strtoull(tp
, NULL
, 0);
923 if (vv
== 0 || vv
== (uint64_t)-1) {
924 fprintf(stderr
, "line %d: %s: bad %s\n",
932 if (streq(cp
, "partitions data base")) {
933 vv
= strtoull(tp
, NULL
, 0);
934 if (vv
== 0 || vv
== (uint64_t)-1) {
935 fprintf(stderr
, "line %d: %s: bad %s\n",
943 if (streq(cp
, "partitions data stop")) {
944 vv
= strtoull(tp
, NULL
, 0);
945 if (vv
== 0 || vv
== (uint64_t)-1) {
946 fprintf(stderr
, "line %d: %s: bad %s\n",
954 if (streq(cp
, "backup label")) {
955 vv
= strtoull(tp
, NULL
, 0);
956 if (vv
== 0 || vv
== (uint64_t)-1) {
957 fprintf(stderr
, "line %d: %s: bad %s\n",
965 if (streq(cp
, "display block size")) {
966 v
= strtoul(tp
, NULL
, 0);
967 if (v
<= 0 || (v
& DEV_BMASK
) != 0 || v
> 1024*1024) {
968 fprintf(stderr
, "line %d: %s: bad %s\n",
977 /* the ':' was removed above */
980 * Handle main partition data, e.g. a:, b:, etc.
982 if (*cp
< 'a' || *cp
> MAX_PART
) {
984 "line %d: %s: Unknown disklabel field\n", lineno
,
990 /* Process a partition specification line. */
992 if (part
>= lp
->d_npartitions
) {
994 "line %d: partition name out of range a-%c: %s\n",
995 lineno
, 'a' + lp
->d_npartitions
- 1, cp
);
1001 fprintf(stderr
, "block size to use for partition "
1002 "display was not specified!\n");
1007 if (strcmp(cp
+ 1, "-stor_uuid") == 0) {
1008 if (getasciipartuuid(tp
, lp
, part
, lineno
, blksize
)) {
1013 } else if (cp
[1] == 0) {
1015 if (getasciipartspec(tp
, lp
, part
, lineno
, blksize
)) {
1021 fprintf(stderr
, "line %d: %s: Unknown disklabel field\n",
1026 errors
+= checklabel(lp
);
1027 return (errors
== 0);
1031 parse_field_val(char **tp
, char **cp
, u_int64_t
*vv
, int lineno
)
1035 if (*tp
== NULL
|| **tp
== 0) {
1036 fprintf(stderr
, "line %d: too few numeric fields\n", lineno
);
1041 *vv
= strtoull(*cp
, &tmp
, 0);
1042 if (*vv
== ULLONG_MAX
) {
1043 fprintf(stderr
, "line %d: illegal number\n", lineno
);
1053 * Read a partition line into partition `part' in the specified disklabel.
1054 * Return 0 on success, 1 on failure.
1057 getasciipartspec(char *tp
, struct disklabel64
*lp
, int part
,
1058 int lineno
, uint32_t blksize
)
1060 struct partition64
*pp
;
1068 pp
= &lp
->d_partitions
[part
];
1074 r
= parse_field_val(&tp
, &cp
, &vv
, lineno
);
1104 r
= 0; /* eat the suffix */
1107 Warning("unknown size specifier '%c' (*/%%/K/M/G/T are valid)",
1112 part_size_type
[part
] = r
;
1113 if (vv
== 0 && r
!= '*') {
1115 "line %d: %s: bad partition size (0)\n", lineno
, cp
);
1118 pp
->p_bsize
= vv
* mpx
;
1123 r
= parse_field_val(&tp
, &cp
, &vv
, lineno
);
1126 part_offset_type
[part
] = r
;
1132 pp
->p_boffset
= vv
* blksize
+ lp
->d_pbase
;
1136 "line %d: %s: bad suffix on partition offset (%c)\n",
1146 "line %d: no filesystem type was specified\n", lineno
);
1151 for (cpp
= fstypenames
; cpp
< &fstypenames
[FSMAXTYPES
]; cpp
++) {
1152 if (*cpp
&& strcasecmp(*cpp
, cp
) == 0)
1156 pp
->p_fstype
= cpp
- fstypenames
;
1159 v
= strtoul(cp
, NULL
, 0);
1162 if (v
>= FSMAXTYPES
) {
1164 "line %d: Warning, unknown filesystem type %s\n",
1173 fprintf(stderr
, "line %d: Warning, extra data on line\n",
1180 getasciipartuuid(char *tp
, struct disklabel64
*lp
, int part
,
1181 int lineno
, uint32_t blksize __unused
)
1183 struct partition64
*pp
;
1187 pp
= &lp
->d_partitions
[part
];
1191 uuid_from_string(cp
, &pp
->p_stor_uuid
, &status
);
1192 if (status
!= uuid_s_ok
) {
1193 fprintf(stderr
, "line %d: Illegal storage uuid specification\n",
1201 * Check disklabel for errors and fill in
1202 * derived fields according to supplied values.
1205 checklabel(struct disklabel64
*lp
)
1207 struct partition64
*pp
;
1210 u_int64_t total_size
;
1211 u_int64_t current_offset
;
1212 u_long total_percent
;
1213 int seen_default_offset
;
1216 struct partition64
*pp2
;
1219 if (lp
->d_align
< 512 ||
1220 (lp
->d_align
^ (lp
->d_align
- 1)) != lp
->d_align
* 2 - 1) {
1221 Warning("Illegal alignment specified: %u\n", lp
->d_align
);
1224 if (lp
->d_npartitions
> MAXPARTITIONS64
) {
1225 Warning("number of partitions (%u) > MAXPARTITIONS (%d)",
1226 lp
->d_npartitions
, MAXPARTITIONS64
);
1229 off
= offsetof(struct disklabel64
, d_partitions
[lp
->d_npartitions
]);
1230 off
= (off
+ lp
->d_align
- 1) & ~(int64_t)(lp
->d_align
- 1);
1232 if (lp
->d_bbase
< off
|| lp
->d_bbase
% lp
->d_align
) {
1233 Warning("illegal boot2 data base ");
1238 * pbase can be unaligned slice-relative but will be
1239 * aligned physically.
1241 if (lp
->d_pbase
< lp
->d_bbase
) {
1242 Warning("illegal partition data base");
1245 if (lp
->d_pstop
< lp
->d_pbase
) {
1246 Warning("illegal partition data stop");
1249 if (lp
->d_pstop
> lp
->d_total_size
) {
1250 printf("%012jx\n%012jx\n",
1251 (intmax_t)lp
->d_pstop
, (intmax_t)lp
->d_total_size
);
1252 Warning("disklabel control info is beyond the total size");
1256 (lp
->d_abase
< lp
->d_pstop
||
1257 lp
->d_abase
> lp
->d_total_size
- off
)) {
1258 Warning("illegal backup label location");
1262 /* first allocate space to the partitions, then offsets */
1263 total_size
= 0; /* in bytes */
1264 total_percent
= 0; /* in percent */
1266 /* find all fixed partitions */
1267 for (i
= 0; i
< (int)lp
->d_npartitions
; i
++) {
1268 pp
= &lp
->d_partitions
[i
];
1270 if (part_size_type
[i
] == '*') {
1271 if (part_offset_type
[i
] != '*') {
1272 if (total_size
< pp
->p_boffset
)
1273 total_size
= pp
->p_boffset
;
1275 if (hog_part
!= -1) {
1276 Warning("Too many '*' partitions (%c and %c)",
1277 hog_part
+ 'a',i
+ 'a');
1285 if (part_size_type
[i
] == '%') {
1287 * don't count %'s yet
1289 total_percent
+= size
;
1292 * Value has already been converted
1295 if (size
% lp
->d_align
!= 0) {
1296 Warning("partition %c's size is not properly aligned",
1304 /* handle % partitions - note %'s don't need to add up to 100! */
1305 if (total_percent
!= 0) {
1309 free_space
= (int64_t)(lp
->d_pstop
- lp
->d_pbase
- total_size
);
1310 free_space
&= ~(u_int64_t
)(lp
->d_align
- 1);
1312 space_left
= free_space
;
1313 if (total_percent
> 100) {
1314 fprintf(stderr
,"total percentage %lu is greater than 100\n",
1319 if (free_space
> 0) {
1320 for (i
= 0; i
< (int)lp
->d_npartitions
; i
++) {
1321 pp
= &lp
->d_partitions
[i
];
1322 if (part_set
[i
] && part_size_type
[i
] == '%') {
1323 /* careful of overflows! and integer roundoff */
1324 pp
->p_bsize
= ((double)pp
->p_bsize
/100) * free_space
;
1325 pp
->p_bsize
= (pp
->p_bsize
+ lp
->d_align
- 1) & ~(u_int64_t
)(lp
->d_align
- 1);
1326 if ((int64_t)pp
->p_bsize
> space_left
)
1327 pp
->p_bsize
= (u_int64_t
)space_left
;
1328 total_size
+= pp
->p_bsize
;
1329 space_left
-= pp
->p_bsize
;
1333 fprintf(stderr
, "%jd bytes available to give to "
1334 "'*' and '%%' partitions\n",
1335 (intmax_t)free_space
);
1337 /* fix? set all % partitions to size 0? */
1340 /* give anything remaining to the hog partition */
1341 if (hog_part
!= -1) {
1342 off
= lp
->d_pstop
- lp
->d_pbase
- total_size
;
1343 off
&= ~(u_int64_t
)(lp
->d_align
- 1);
1344 lp
->d_partitions
[hog_part
].p_bsize
= off
;
1345 total_size
= lp
->d_pstop
- lp
->d_pbase
;
1348 /* Now set the offsets for each partition */
1349 current_offset
= lp
->d_pbase
;
1350 seen_default_offset
= 0;
1351 for (i
= 0; i
< (int)lp
->d_npartitions
; i
++) {
1353 pp
= &lp
->d_partitions
[i
];
1354 if (pp
->p_bsize
== 0)
1357 if (part_offset_type
[i
] == '*') {
1358 pp
->p_boffset
= current_offset
;
1359 seen_default_offset
= 1;
1361 /* allow them to be out of order for old-style tables */
1362 if (pp
->p_boffset
< current_offset
&&
1363 seen_default_offset
&&
1364 pp
->p_fstype
!= FS_VINUM
) {
1366 "Offset 0x%012jx for partition %c overlaps previous partition which ends at 0x%012jx\n",
1367 (intmax_t)pp
->p_boffset
,
1369 (intmax_t)current_offset
);
1371 "Labels with any *'s for offset must be in ascending order by sector\n");
1373 } else if (pp
->p_boffset
!= current_offset
&&
1374 seen_default_offset
) {
1376 * this may give unneeded warnings if
1377 * partitions are out-of-order
1380 "Offset 0x%012jx for partition %c doesn't match expected value 0x%012jx",
1381 pp
->p_boffset
, i
+ 'a',
1382 (intmax_t)current_offset
);
1385 current_offset
= pp
->p_boffset
+ pp
->p_bsize
;
1389 for (i
= 0; i
< (int)lp
->d_npartitions
; i
++) {
1391 pp
= &lp
->d_partitions
[i
];
1392 if (pp
->p_bsize
== 0 && pp
->p_boffset
!= 0)
1393 Warning("partition %c: size 0, but offset 0x%012jx",
1394 part
, (intmax_t)pp
->p_boffset
);
1395 if (pp
->p_bsize
== 0) {
1399 if (uuid_is_nil(&pp
->p_stor_uuid
, NULL
))
1400 uuid_create(&pp
->p_stor_uuid
, NULL
);
1402 if (pp
->p_boffset
< lp
->d_pbase
) {
1404 "partition %c: offset out of bounds (%jd)\n",
1405 part
, (intmax_t)(pp
->p_boffset
- lp
->d_pbase
));
1408 if (pp
->p_boffset
> lp
->d_pstop
) {
1410 "partition %c: offset out of bounds (%jd)\n",
1411 part
, (intmax_t)(pp
->p_boffset
- lp
->d_pbase
));
1414 if (pp
->p_boffset
+ pp
->p_bsize
> lp
->d_pstop
) {
1416 "partition %c: size out of bounds (%jd)\n",
1417 part
, (intmax_t)(pp
->p_boffset
- lp
->d_pbase
));
1421 /* check for overlaps */
1422 /* this will check for all possible overlaps once and only once */
1423 for (j
= 0; j
< i
; j
++) {
1424 pp2
= &lp
->d_partitions
[j
];
1425 if (pp
->p_fstype
!= FS_VINUM
&&
1426 pp2
->p_fstype
!= FS_VINUM
&&
1427 part_set
[i
] && part_set
[j
]) {
1428 if (pp2
->p_boffset
< pp
->p_boffset
+ pp
->p_bsize
&&
1429 (pp2
->p_boffset
+ pp2
->p_bsize
> pp
->p_boffset
||
1430 pp2
->p_boffset
>= pp
->p_boffset
)) {
1431 fprintf(stderr
,"partitions %c and %c overlap!\n",
1438 for (; i
< (int)lp
->d_npartitions
; i
++) {
1440 pp
= &lp
->d_partitions
[i
];
1441 if (pp
->p_bsize
|| pp
->p_boffset
)
1442 Warning("unused partition %c: size 0x%012jx "
1444 'a' + i
, (intmax_t)pp
->p_bsize
,
1445 (intmax_t)pp
->p_boffset
);
1451 * When operating on a "virgin" disk, try getting an initial label
1452 * from the associated device driver. This might work for all device
1453 * drivers that are able to fetch some initial device parameters
1454 * without even having access to a (BSD) disklabel, like SCSI disks,
1455 * most IDE drives, or vn devices.
1457 * The device name must be given in its "canonical" form.
1459 static struct disklabel64 dlab
;
1461 static struct disklabel64
*
1462 getvirginlabel(void)
1464 struct disklabel64
*dl
= &dlab
;
1467 if ((f
= open(dkname
, O_RDONLY
)) == -1) {
1468 warn("cannot open %s", dkname
);
1473 * Generate a virgin disklabel via ioctl
1475 if (ioctl(f
, DIOCGDVIRGIN64
, dl
) < 0) {
1476 l_perror("ioctl DIOCGDVIRGIN64");
1486 Warning(const char *fmt
, ...)
1490 fprintf(stderr
, "Warning, ");
1492 vfprintf(stderr
, fmt
, ap
);
1493 fprintf(stderr
, "\n");
1500 fprintf(stderr
, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
1501 "usage: disklabel64 [-r] disk",
1502 "\t\t(to read label)",
1503 " disklabel64 -w [-r] [-n] disk [type [packid]]",
1504 "\t\t(to write label with existing boot program)",
1505 " disklabel64 -e [-r] [-n] disk",
1506 "\t\t(to edit label)",
1507 " disklabel64 -R [-r] [-n] disk protofile",
1508 "\t\t(to restore label with existing boot program)",
1509 " disklabel64 -B [-n] [-b boot1 -s boot2] disk [type]",
1510 "\t\t(to install boot program with existing label)",
1511 " disklabel64 -w -B [-n] [-b boot1 -s boot2] disk [type [packid]]",
1512 "\t\t(to write label and boot program)",
1513 " disklabel64 -R -B [-n] [-b boot1 -s boot2] disk protofile [type]",
1514 "\t\t(to restore label and boot program)",
1515 " disklabel64 [-NW] disk",
1516 "\t\t(to write disable/enable label)");