1 #if ENABLE_FEATURE_OSF_LABEL
3 * Copyright (c) 1987, 1988 Regents of the University of California.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgment:
16 * This product includes software developed by the University of
17 * California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #define BSD_DISKMAGIC ((uint32_t) 0x82564557)
40 #ifndef BSD_MAXPARTITIONS
41 #define BSD_MAXPARTITIONS 16
44 #define BSD_LINUX_BOOTDIR "/usr/ucb/mdec"
46 #if defined(i386) || defined(__sparc__) || defined(__arm__) \
47 || defined(__m68k__) || defined(__mips__) || defined(__s390__) \
48 || defined(__sh__) || defined(__x86_64__)
49 #define BSD_LABELSECTOR 1
50 #define BSD_LABELOFFSET 0
51 #elif defined(__alpha__) || defined(__powerpc__) || defined(__ia64__) \
53 #define BSD_LABELSECTOR 0
54 #define BSD_LABELOFFSET 64
55 #elif defined(__s390__) || defined(__s390x__)
56 #define BSD_LABELSECTOR 1
57 #define BSD_LABELOFFSET 0
59 #error unknown architecture
62 #define BSD_BBSIZE 8192 /* size of boot area, with label */
63 #define BSD_SBSIZE 8192 /* max size of fs superblock */
65 struct xbsd_disklabel {
66 uint32_t d_magic; /* the magic number */
67 int16_t d_type; /* drive type */
68 int16_t d_subtype; /* controller/d_type specific */
69 char d_typename[16]; /* type name, e.g. "eagle" */
70 char d_packname[16]; /* pack identifier */
72 uint32_t d_secsize; /* # of bytes per sector */
73 uint32_t d_nsectors; /* # of data sectors per track */
74 uint32_t d_ntracks; /* # of tracks per cylinder */
75 uint32_t d_ncylinders; /* # of data cylinders per unit */
76 uint32_t d_secpercyl; /* # of data sectors per cylinder */
77 uint32_t d_secperunit; /* # of data sectors per unit */
79 * Spares (bad sector replacements) below
80 * are not counted in d_nsectors or d_secpercyl.
81 * Spare sectors are assumed to be physical sectors
82 * which occupy space at the end of each track and/or cylinder.
84 uint16_t d_sparespertrack; /* # of spare sectors per track */
85 uint16_t d_sparespercyl; /* # of spare sectors per cylinder */
87 * Alternate cylinders include maintenance, replacement,
88 * configuration description areas, etc.
90 uint32_t d_acylinders; /* # of alt. cylinders per unit */
92 /* hardware characteristics: */
94 * d_interleave, d_trackskew and d_cylskew describe perturbations
95 * in the media format used to compensate for a slow controller.
96 * Interleave is physical sector interleave, set up by the formatter
97 * or controller when formatting. When interleaving is in use,
98 * logically adjacent sectors are not physically contiguous,
99 * but instead are separated by some number of sectors.
100 * It is specified as the ratio of physical sectors traversed
101 * per logical sector. Thus an interleave of 1:1 implies contiguous
102 * layout, while 2:1 implies that logical sector 0 is separated
103 * by one sector from logical sector 1.
104 * d_trackskew is the offset of sector 0 on track N
105 * relative to sector 0 on track N-1 on the same cylinder.
106 * Finally, d_cylskew is the offset of sector 0 on cylinder N
107 * relative to sector 0 on cylinder N-1.
109 uint16_t d_rpm; /* rotational speed */
110 uint16_t d_interleave; /* hardware sector interleave */
111 uint16_t d_trackskew; /* sector 0 skew, per track */
112 uint16_t d_cylskew; /* sector 0 skew, per cylinder */
113 uint32_t d_headswitch; /* head switch time, usec */
114 uint32_t d_trkseek; /* track-to-track seek, usec */
115 uint32_t d_flags; /* generic flags */
117 uint32_t d_drivedata[NDDATA]; /* drive-type specific information */
119 uint32_t d_spare[NSPARE]; /* reserved for future use */
120 uint32_t d_magic2; /* the magic number (again) */
121 uint16_t d_checksum; /* xor of data incl. partitions */
122 /* filesystem and partition information: */
123 uint16_t d_npartitions; /* number of partitions in following */
124 uint32_t d_bbsize; /* size of boot area at sn0, bytes */
125 uint32_t d_sbsize; /* max size of fs superblock, bytes */
126 struct xbsd_partition { /* the partition table */
127 uint32_t p_size; /* number of sectors in partition */
128 uint32_t p_offset; /* starting sector */
129 uint32_t p_fsize; /* filesystem basic fragment size */
130 uint8_t p_fstype; /* filesystem type, see below */
131 uint8_t p_frag; /* filesystem fragments per block */
132 uint16_t p_cpg; /* filesystem cylinders per group */
133 } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */
137 #define BSD_DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */
138 #define BSD_DTYPE_MSCP 2 /* MSCP */
139 #define BSD_DTYPE_DEC 3 /* other DEC (rk, rl) */
140 #define BSD_DTYPE_SCSI 4 /* SCSI */
141 #define BSD_DTYPE_ESDI 5 /* ESDI interface */
142 #define BSD_DTYPE_ST506 6 /* ST506 etc. */
143 #define BSD_DTYPE_HPIB 7 /* CS/80 on HP-IB */
144 #define BSD_DTYPE_HPFL 8 /* HP Fiber-link */
145 #define BSD_DTYPE_FLOPPY 10 /* floppy */
147 /* d_subtype values: */
148 #define BSD_DSTYPE_INDOSPART 0x8 /* is inside dos partition */
149 #define BSD_DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */
150 #define BSD_DSTYPE_GEOMETRY 0x10 /* drive params in label */
152 static const char *const xbsd_dktypenames[] = {
169 * Filesystem type and version.
170 * Used to interpret other filesystem-specific
171 * per-partition information.
173 #define BSD_FS_UNUSED 0 /* unused */
174 #define BSD_FS_SWAP 1 /* swap */
175 #define BSD_FS_V6 2 /* Sixth Edition */
176 #define BSD_FS_V7 3 /* Seventh Edition */
177 #define BSD_FS_SYSV 4 /* System V */
178 #define BSD_FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */
179 #define BSD_FS_V8 6 /* Eighth Edition, 4K blocks */
180 #define BSD_FS_BSDFFS 7 /* 4.2BSD fast file system */
181 #define BSD_FS_BSDLFS 9 /* 4.4BSD log-structured file system */
182 #define BSD_FS_OTHER 10 /* in use, but unknown/unsupported */
183 #define BSD_FS_HPFS 11 /* OS/2 high-performance file system */
184 #define BSD_FS_ISO9660 12 /* ISO-9660 filesystem (cdrom) */
185 #define BSD_FS_ISOFS BSD_FS_ISO9660
186 #define BSD_FS_BOOT 13 /* partition contains bootstrap */
187 #define BSD_FS_ADOS 14 /* AmigaDOS fast file system */
188 #define BSD_FS_HFS 15 /* Macintosh HFS */
189 #define BSD_FS_ADVFS 16 /* Digital Unix AdvFS */
191 /* this is annoying, but it's also the way it is :-( */
193 #define BSD_FS_EXT2 8 /* ext2 file system */
195 #define BSD_FS_MSDOS 8 /* MS-DOS file system */
198 static const char *const xbsd_fstypes[] = {
199 "\x00" "unused", /* BSD_FS_UNUSED */
200 "\x01" "swap", /* BSD_FS_SWAP */
201 "\x02" "Version 6", /* BSD_FS_V6 */
202 "\x03" "Version 7", /* BSD_FS_V7 */
203 "\x04" "System V", /* BSD_FS_SYSV */
204 "\x05" "4.1BSD", /* BSD_FS_V71K */
205 "\x06" "Eighth Edition", /* BSD_FS_V8 */
206 "\x07" "4.2BSD", /* BSD_FS_BSDFFS */
208 "\x08" "ext2", /* BSD_FS_EXT2 */
210 "\x08" "MS-DOS", /* BSD_FS_MSDOS */
212 "\x09" "4.4LFS", /* BSD_FS_BSDLFS */
213 "\x0a" "unknown", /* BSD_FS_OTHER */
214 "\x0b" "HPFS", /* BSD_FS_HPFS */
215 "\x0c" "ISO-9660", /* BSD_FS_ISO9660 */
216 "\x0d" "boot", /* BSD_FS_BOOT */
217 "\x0e" "ADOS", /* BSD_FS_ADOS */
218 "\x0f" "HFS", /* BSD_FS_HFS */
219 "\x10" "AdvFS", /* BSD_FS_ADVFS */
225 * flags shared by various drives:
227 #define BSD_D_REMOVABLE 0x01 /* removable media */
228 #define BSD_D_ECC 0x02 /* supports ECC */
229 #define BSD_D_BADSECT 0x04 /* supports bad sector forw. */
230 #define BSD_D_RAMDISK 0x08 /* disk emulator */
231 #define BSD_D_CHAIN 0x10 /* can do back-back transfers */
232 #define BSD_D_DOSPART 0x20 /* within MSDOS partition */
236 19990319 - Arnaldo Carvalho de Melo <acme@conectiva.com.br> - i18n/nls
238 20000101 - David Huggins-Daines <dhuggins@linuxcare.com> - Better
239 support for OSF/1 disklabels on Alpha.
240 Also fixed unaligned accesses in alpha_bootblock_checksum()
243 #define FREEBSD_PARTITION 0xa5
244 #define NETBSD_PARTITION 0xa9
246 static void xbsd_delete_part(void);
247 static void xbsd_new_part(void);
248 static void xbsd_write_disklabel(void);
249 static int xbsd_create_disklabel(void);
250 static void xbsd_edit_disklabel(void);
251 static void xbsd_write_bootstrap(void);
252 static void xbsd_change_fstype(void);
253 static int xbsd_get_part_index(int max);
254 static int xbsd_check_new_partition(int *i);
255 static void xbsd_list_types(void);
256 static uint16_t xbsd_dkcksum(struct xbsd_disklabel *lp);
257 static int xbsd_initlabel(struct partition *p);
258 static int xbsd_readlabel(struct partition *p);
259 static int xbsd_writelabel(struct partition *p);
261 #if defined(__alpha__)
262 static void alpha_bootblock_checksum(char *boot);
265 #if !defined(__alpha__)
266 static int xbsd_translate_fstype(int linux_type);
267 static void xbsd_link_part(void);
268 static struct partition *xbsd_part;
269 static int xbsd_part_index;
273 /* Group big globals data and allocate it in one go */
275 /* We access this through a uint64_t * when checksumming */
276 /* hopefully xmalloc gives us required alignment */
277 char disklabelbuffer[BSD_BBSIZE];
278 struct xbsd_disklabel xbsd_dlabel;
281 static struct bsd_globals *bsd_globals_ptr;
283 #define disklabelbuffer (bsd_globals_ptr->disklabelbuffer)
284 #define xbsd_dlabel (bsd_globals_ptr->xbsd_dlabel)
289 #define bsd_cround(n) \
290 (display_in_cyl_units ? ((n)/xbsd_dlabel.d_secpercyl) + 1 : (n))
293 * Test whether the whole disk has BSD disk label magic.
295 * Note: often reformatting with DOS-type label leaves the BSD magic,
296 * so this does not mean that there is a BSD disk label.
299 check_osf_label(void)
301 if (xbsd_readlabel(NULL) == 0)
307 bsd_trydev(const char * dev)
309 if (xbsd_readlabel(NULL) == 0)
311 printf("\nBSD label for device: %s\n", dev);
312 xbsd_print_disklabel(0);
319 puts("Command Action");
320 puts("d\tdelete a BSD partition");
321 puts("e\tedit drive data");
322 puts("i\tinstall bootstrap");
323 puts("l\tlist known filesystem types");
324 puts("n\tadd a new BSD partition");
325 puts("p\tprint BSD partition table");
326 puts("q\tquit without saving changes");
327 puts("r\treturn to main menu");
328 puts("s\tshow complete disklabel");
329 puts("t\tchange a partition's filesystem id");
330 puts("u\tchange units (cylinders/sectors)");
331 puts("w\twrite disklabel to disk");
332 #if !defined(__alpha__)
333 puts("x\tlink BSD partition to non-BSD partition");
337 #if !defined(__alpha__)
345 is_bsd_partition_type(int type)
347 return (type == FREEBSD_PARTITION ||
348 type == hidden(FREEBSD_PARTITION) ||
349 type == NETBSD_PARTITION ||
350 type == hidden(NETBSD_PARTITION));
357 #if !defined(__alpha__)
361 for (t = 0; t < 4; t++) {
362 p = get_part_table(t);
363 if (p && is_bsd_partition_type(p->sys_ind)) {
366 ss = get_start_sect(xbsd_part);
368 printf("Partition %s has invalid starting sector 0\n",
369 partname(disk_device, t+1, 0));
372 printf("Reading disklabel of %s at sector %d\n",
373 partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR);
374 if (xbsd_readlabel(xbsd_part) == 0)
375 if (xbsd_create_disklabel() == 0)
382 printf("There is no *BSD partition on %s\n", disk_device);
386 #elif defined(__alpha__)
388 if (xbsd_readlabel(NULL) == 0)
389 if (xbsd_create_disklabel() == 0)
396 switch (tolower(read_nonempty("BSD disklabel command (m for help): "))) {
401 xbsd_edit_disklabel();
404 xbsd_write_bootstrap();
413 xbsd_print_disklabel(0);
421 xbsd_print_disklabel(1);
424 xbsd_change_fstype();
430 xbsd_write_disklabel();
432 #if !defined(__alpha__)
445 xbsd_delete_part(void)
449 i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
450 xbsd_dlabel.d_partitions[i].p_size = 0;
451 xbsd_dlabel.d_partitions[i].p_offset = 0;
452 xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED;
453 if (xbsd_dlabel.d_npartitions == i + 1)
454 while (xbsd_dlabel.d_partitions[xbsd_dlabel.d_npartitions-1].p_size == 0)
455 xbsd_dlabel.d_npartitions--;
465 if (!xbsd_check_new_partition(&i))
468 #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
469 begin = get_start_sect(xbsd_part);
470 end = begin + get_nr_sects(xbsd_part) - 1;
473 end = xbsd_dlabel.d_secperunit - 1;
476 snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR));
477 begin = read_int(bsd_cround(begin), bsd_cround(begin), bsd_cround(end),
480 if (display_in_cyl_units)
481 begin = (begin - 1) * xbsd_dlabel.d_secpercyl;
483 snprintf(mesg, sizeof(mesg), "Last %s or +size or +sizeM or +sizeK",
484 str_units(SINGULAR));
485 end = read_int(bsd_cround(begin), bsd_cround(end), bsd_cround(end),
486 bsd_cround(begin), mesg);
488 if (display_in_cyl_units)
489 end = end * xbsd_dlabel.d_secpercyl - 1;
491 xbsd_dlabel.d_partitions[i].p_size = end - begin + 1;
492 xbsd_dlabel.d_partitions[i].p_offset = begin;
493 xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED;
497 xbsd_print_disklabel(int show_all)
499 struct xbsd_disklabel *lp = &xbsd_dlabel;
500 struct xbsd_partition *pp;
504 #if defined(__alpha__)
505 printf("# %s:\n", disk_device);
507 printf("# %s:\n", partname(disk_device, xbsd_part_index+1, 0));
509 if ((unsigned) lp->d_type < ARRAY_SIZE(xbsd_dktypenames)-1)
510 printf("type: %s\n", xbsd_dktypenames[lp->d_type]);
512 printf("type: %d\n", lp->d_type);
513 printf("disk: %.*s\n", (int) sizeof(lp->d_typename), lp->d_typename);
514 printf("label: %.*s\n", (int) sizeof(lp->d_packname), lp->d_packname);
516 if (lp->d_flags & BSD_D_REMOVABLE)
517 printf(" removable");
518 if (lp->d_flags & BSD_D_ECC)
520 if (lp->d_flags & BSD_D_BADSECT)
523 /* On various machines the fields of *lp are short/int/long */
524 /* In order to avoid problems, we cast them all to long. */
525 printf("bytes/sector: %ld\n", (long) lp->d_secsize);
526 printf("sectors/track: %ld\n", (long) lp->d_nsectors);
527 printf("tracks/cylinder: %ld\n", (long) lp->d_ntracks);
528 printf("sectors/cylinder: %ld\n", (long) lp->d_secpercyl);
529 printf("cylinders: %ld\n", (long) lp->d_ncylinders);
530 printf("rpm: %d\n", lp->d_rpm);
531 printf("interleave: %d\n", lp->d_interleave);
532 printf("trackskew: %d\n", lp->d_trackskew);
533 printf("cylinderskew: %d\n", lp->d_cylskew);
534 printf("headswitch: %ld\t\t# milliseconds\n",
535 (long) lp->d_headswitch);
536 printf("track-to-track seek: %ld\t# milliseconds\n",
537 (long) lp->d_trkseek);
538 printf("drivedata: ");
539 for (i = NDDATA - 1; i >= 0; i--)
540 if (lp->d_drivedata[i])
544 for (j = 0; j <= i; j++)
545 printf("%ld ", (long) lp->d_drivedata[j]);
547 printf("\n%d partitions:\n", lp->d_npartitions);
548 printf("# start end size fstype [fsize bsize cpg]\n");
549 pp = lp->d_partitions;
550 for (i = 0; i < lp->d_npartitions; i++, pp++) {
552 if (display_in_cyl_units && lp->d_secpercyl) {
553 printf(" %c: %8ld%c %8ld%c %8ld%c ",
555 (long) pp->p_offset / lp->d_secpercyl + 1,
556 (pp->p_offset % lp->d_secpercyl) ? '*' : ' ',
557 (long) (pp->p_offset + pp->p_size + lp->d_secpercyl - 1) / lp->d_secpercyl,
558 ((pp->p_offset + pp->p_size) % lp->d_secpercyl) ? '*' : ' ',
559 (long) pp->p_size / lp->d_secpercyl,
560 (pp->p_size % lp->d_secpercyl) ? '*' : ' '
563 printf(" %c: %8ld %8ld %8ld ",
566 (long) pp->p_offset + pp->p_size - 1,
571 if ((unsigned) pp->p_fstype < ARRAY_SIZE(xbsd_fstypes)-1)
572 printf("%8.8s", xbsd_fstypes[pp->p_fstype]);
574 printf("%8x", pp->p_fstype);
576 switch (pp->p_fstype) {
578 printf(" %5ld %5ld %5.5s ",
579 (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, "");
582 printf(" %5ld %5ld %5d ",
583 (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg);
586 printf("%22.22s", "");
595 xbsd_write_disklabel(void)
597 #if defined(__alpha__)
598 printf("Writing disklabel to %s\n", disk_device);
599 xbsd_writelabel(NULL);
601 printf("Writing disklabel to %s\n",
602 partname(disk_device, xbsd_part_index + 1, 0));
603 xbsd_writelabel(xbsd_part);
605 reread_partition_table(0); /* no exit yet */
609 xbsd_create_disklabel(void)
613 #if defined(__alpha__)
614 printf("%s contains no disklabel\n", disk_device);
616 printf("%s contains no disklabel\n",
617 partname(disk_device, xbsd_part_index + 1, 0));
621 c = read_nonempty("Do you want to create a disklabel? (y/n) ");
622 if (c == 'y' || c == 'Y') {
624 #if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \
625 defined(__s390__) || defined(__s390x__)
631 xbsd_print_disklabel(1);
641 edit_int(int def, const char *mesg)
643 mesg = xasprintf("%s (%d): ", mesg, def);
645 if (!read_line(mesg))
647 } while (!isdigit(*line_ptr));
648 def = atoi(line_ptr);
655 xbsd_edit_disklabel(void)
657 struct xbsd_disklabel *d;
661 #if defined(__alpha__) || defined(__ia64__)
662 d->d_secsize = edit_int(d->d_secsize , "bytes/sector");
663 d->d_nsectors = edit_int(d->d_nsectors , "sectors/track");
664 d->d_ntracks = edit_int(d->d_ntracks , "tracks/cylinder");
665 d->d_ncylinders = edit_int(d->d_ncylinders , "cylinders");
668 /* d->d_secpercyl can be != d->d_nsectors * d->d_ntracks */
670 d->d_secpercyl = edit_int(d->d_nsectors * d->d_ntracks,
672 if (d->d_secpercyl <= d->d_nsectors * d->d_ntracks)
675 printf("Must be <= sectors/track * tracks/cylinder (default)\n");
677 d->d_rpm = edit_int(d->d_rpm , "rpm");
678 d->d_interleave = edit_int(d->d_interleave, "interleave");
679 d->d_trackskew = edit_int(d->d_trackskew , "trackskew");
680 d->d_cylskew = edit_int(d->d_cylskew , "cylinderskew");
681 d->d_headswitch = edit_int(d->d_headswitch, "headswitch");
682 d->d_trkseek = edit_int(d->d_trkseek , "track-to-track seek");
684 d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
688 xbsd_get_bootstrap(char *path, void *ptr, int size)
692 fdb = open(path, O_RDONLY);
697 if (read(fdb, ptr, size) < 0) {
702 printf(" ... %s\n", path);
710 printf("Syncing disks\n");
712 /* sleep(4); What? */
716 xbsd_write_bootstrap(void)
718 char path[MAXPATHLEN];
719 const char *bootdir = BSD_LINUX_BOOTDIR;
720 const char *dkbasename;
721 struct xbsd_disklabel dl;
725 if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI)
730 snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ",
731 dkbasename, dkbasename, dkbasename);
732 if (read_line(path)) {
733 dkbasename = line_ptr;
735 snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename);
736 if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize))
739 /* We need a backup of the disklabel (xbsd_dlabel might have changed). */
740 d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE];
741 memmove(&dl, d, sizeof(struct xbsd_disklabel));
743 /* The disklabel will be overwritten by 0's from bootxx anyway */
744 memset(d, 0, sizeof(struct xbsd_disklabel));
746 snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename);
747 if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize],
748 (int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize))
751 e = d + sizeof(struct xbsd_disklabel);
752 for (p = d; p < e; p++)
754 printf("Bootstrap overlaps with disk label!\n");
758 memmove(d, &dl, sizeof(struct xbsd_disklabel));
760 #if defined(__powerpc__) || defined(__hppa__)
762 #elif defined(__alpha__)
764 alpha_bootblock_checksum(disklabelbuffer);
766 sector = get_start_sect(xbsd_part);
769 if (lseek(fd, sector * SECTOR_SIZE, SEEK_SET) == -1)
770 fdisk_fatal(unable_to_seek);
771 if (BSD_BBSIZE != write(fd, disklabelbuffer, BSD_BBSIZE))
772 fdisk_fatal(unable_to_write);
774 #if defined(__alpha__)
775 printf("Bootstrap installed on %s\n", disk_device);
777 printf("Bootstrap installed on %s\n",
778 partname(disk_device, xbsd_part_index+1, 0));
785 xbsd_change_fstype(void)
789 i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
790 xbsd_dlabel.d_partitions[i].p_fstype = read_hex(xbsd_fstypes);
794 xbsd_get_part_index(int max)
796 char prompt[sizeof("Partition (a-%c): ") + 16];
799 snprintf(prompt, sizeof(prompt), "Partition (a-%c): ", 'a' + max - 1);
801 l = tolower(read_nonempty(prompt));
802 while (l < 'a' || l > 'a' + max - 1);
807 xbsd_check_new_partition(int *i)
809 /* room for more? various BSD flavours have different maxima */
810 if (xbsd_dlabel.d_npartitions == BSD_MAXPARTITIONS) {
813 for (t = 0; t < BSD_MAXPARTITIONS; t++)
814 if (xbsd_dlabel.d_partitions[t].p_size == 0)
817 if (t == BSD_MAXPARTITIONS) {
818 printf("The maximum number of partitions has been created\n");
823 *i = xbsd_get_part_index(BSD_MAXPARTITIONS);
825 if (*i >= xbsd_dlabel.d_npartitions)
826 xbsd_dlabel.d_npartitions = (*i) + 1;
828 if (xbsd_dlabel.d_partitions[*i].p_size != 0) {
829 printf("This partition already exists\n");
837 xbsd_list_types(void)
839 list_types(xbsd_fstypes);
843 xbsd_dkcksum(struct xbsd_disklabel *lp)
845 uint16_t *start, *end;
848 start = (uint16_t *) lp;
849 end = (uint16_t *) &lp->d_partitions[lp->d_npartitions];
856 xbsd_initlabel(struct partition *p)
858 struct xbsd_disklabel *d = &xbsd_dlabel;
859 struct xbsd_partition *pp;
862 memset(d, 0, sizeof(struct xbsd_disklabel));
864 d->d_magic = BSD_DISKMAGIC;
866 if (strncmp(disk_device, "/dev/sd", 7) == 0)
867 d->d_type = BSD_DTYPE_SCSI;
869 d->d_type = BSD_DTYPE_ST506;
871 #if !defined(__alpha__)
872 d->d_flags = BSD_D_DOSPART;
876 d->d_secsize = SECTOR_SIZE; /* bytes/sector */
877 d->d_nsectors = g_sectors; /* sectors/track */
878 d->d_ntracks = g_heads; /* tracks/cylinder (heads) */
879 d->d_ncylinders = g_cylinders;
880 d->d_secpercyl = g_sectors * g_heads;/* sectors/cylinder */
881 if (d->d_secpercyl == 0)
882 d->d_secpercyl = 1; /* avoid segfaults */
883 d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
892 d->d_magic2 = BSD_DISKMAGIC;
893 d->d_bbsize = BSD_BBSIZE;
894 d->d_sbsize = BSD_SBSIZE;
896 #if !defined(__alpha__)
897 d->d_npartitions = 4;
898 pp = &d->d_partitions[2]; /* Partition C should be NetBSD partition */
900 pp->p_offset = get_start_sect(p);
901 pp->p_size = get_nr_sects(p);
902 pp->p_fstype = BSD_FS_UNUSED;
903 pp = &d->d_partitions[3]; /* Partition D should be whole disk */
906 pp->p_size = d->d_secperunit;
907 pp->p_fstype = BSD_FS_UNUSED;
909 d->d_npartitions = 3;
910 pp = &d->d_partitions[2]; /* Partition C should be
913 pp->p_size = d->d_secperunit;
914 pp->p_fstype = BSD_FS_UNUSED;
921 * Read a xbsd_disklabel from sector 0 or from the starting sector of p.
922 * If it has the right magic, return 1.
925 xbsd_readlabel(struct partition *p)
927 struct xbsd_disklabel *d;
930 if (!bsd_globals_ptr)
931 bsd_globals_ptr = xzalloc(sizeof(*bsd_globals_ptr));
935 /* p is used only to get the starting sector */
936 #if !defined(__alpha__)
937 sector = (p ? get_start_sect(p) : 0);
942 if (lseek(fd, sector * SECTOR_SIZE, SEEK_SET) == -1)
943 fdisk_fatal(unable_to_seek);
944 if (BSD_BBSIZE != read(fd, disklabelbuffer, BSD_BBSIZE))
945 fdisk_fatal(unable_to_read);
947 memmove(d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
948 sizeof(struct xbsd_disklabel));
950 if (d->d_magic != BSD_DISKMAGIC || d->d_magic2 != BSD_DISKMAGIC)
953 for (t = d->d_npartitions; t < BSD_MAXPARTITIONS; t++) {
954 d->d_partitions[t].p_size = 0;
955 d->d_partitions[t].p_offset = 0;
956 d->d_partitions[t].p_fstype = BSD_FS_UNUSED;
959 if (d->d_npartitions > BSD_MAXPARTITIONS)
960 printf("Warning: too many partitions (%d, maximum is %d)\n",
961 d->d_npartitions, BSD_MAXPARTITIONS);
966 xbsd_writelabel(struct partition *p)
968 struct xbsd_disklabel *d = &xbsd_dlabel;
971 #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
972 sector = get_start_sect(p) + BSD_LABELSECTOR;
974 sector = BSD_LABELSECTOR;
978 d->d_checksum = xbsd_dkcksum(d);
980 /* This is necessary if we want to write the bootstrap later,
981 otherwise we'd write the old disklabel with the bootstrap.
983 memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
984 d, sizeof(struct xbsd_disklabel));
986 #if defined(__alpha__) && BSD_LABELSECTOR == 0
987 alpha_bootblock_checksum(disklabelbuffer);
988 if (lseek(fd, 0, SEEK_SET) == -1)
989 fdisk_fatal(unable_to_seek);
990 if (BSD_BBSIZE != write(fd, disklabelbuffer, BSD_BBSIZE))
991 fdisk_fatal(unable_to_write);
993 if (lseek(fd, sector * SECTOR_SIZE + BSD_LABELOFFSET, SEEK_SET) == -1)
994 fdisk_fatal(unable_to_seek);
995 if (sizeof(struct xbsd_disklabel) != write(fd, d, sizeof(struct xbsd_disklabel)))
996 fdisk_fatal(unable_to_write);
1003 #if !defined(__alpha__)
1005 xbsd_translate_fstype(int linux_type)
1007 switch (linux_type) {
1008 case 0x01: /* DOS 12-bit FAT */
1009 case 0x04: /* DOS 16-bit <32M */
1010 case 0x06: /* DOS 16-bit >=32M */
1011 case 0xe1: /* DOS access */
1012 case 0xe3: /* DOS R/O */
1013 case 0xf2: /* DOS secondary */
1014 return BSD_FS_MSDOS;
1015 case 0x07: /* OS/2 HPFS */
1018 return BSD_FS_OTHER;
1023 xbsd_link_part(void)
1026 struct partition *p;
1028 k = get_partition(1, g_partitions);
1030 if (!xbsd_check_new_partition(&i))
1033 p = get_part_table(k);
1035 xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p);
1036 xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p);
1037 xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind);
1041 #if defined(__alpha__)
1043 alpha_bootblock_checksum(char *boot)
1048 dp = (uint64_t *)boot;
1050 for (i = 0; i < 63; i++)
1054 #endif /* __alpha__ */
1056 /* Undefine 'global' tricks */
1057 #undef disklabelbuffer
1060 #endif /* OSF_LABEL */