2 * Copyright (c) 1987, 1988 Regents of the University of California.
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.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgment:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #if ENABLE_FEATURE_OSF_LABEL
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(__s390__) || defined(__s390x__) \
49 || defined(__sh__) || defined(__x86_64__) || defined(__avr32__) \
51 # define BSD_LABELSECTOR 1
52 # define BSD_LABELOFFSET 0
53 #elif defined(__alpha__) || defined(__powerpc__) || defined(__ia64__) \
55 # define BSD_LABELSECTOR 0
56 # define BSD_LABELOFFSET 64
58 # error unknown architecture
61 #define BSD_BBSIZE 8192 /* size of boot area, with label */
62 #define BSD_SBSIZE 8192 /* max size of fs superblock */
64 struct xbsd_disklabel {
65 uint32_t d_magic; /* the magic number */
66 int16_t d_type; /* drive type */
67 int16_t d_subtype; /* controller/d_type specific */
68 char d_typename[16]; /* type name, e.g. "eagle" */
69 char d_packname[16]; /* pack identifier */
71 uint32_t d_secsize; /* # of bytes per sector */
72 uint32_t d_nsectors; /* # of data sectors per track */
73 uint32_t d_ntracks; /* # of tracks per cylinder */
74 uint32_t d_ncylinders; /* # of data cylinders per unit */
75 uint32_t d_secpercyl; /* # of data sectors per cylinder */
76 uint32_t d_secperunit; /* # of data sectors per unit */
78 * Spares (bad sector replacements) below
79 * are not counted in d_nsectors or d_secpercyl.
80 * Spare sectors are assumed to be physical sectors
81 * which occupy space at the end of each track and/or cylinder.
83 uint16_t d_sparespertrack; /* # of spare sectors per track */
84 uint16_t d_sparespercyl; /* # of spare sectors per cylinder */
86 * Alternate cylinders include maintenance, replacement,
87 * configuration description areas, etc.
89 uint32_t d_acylinders; /* # of alt. cylinders per unit */
91 /* hardware characteristics: */
93 * d_interleave, d_trackskew and d_cylskew describe perturbations
94 * in the media format used to compensate for a slow controller.
95 * Interleave is physical sector interleave, set up by the formatter
96 * or controller when formatting. When interleaving is in use,
97 * logically adjacent sectors are not physically contiguous,
98 * but instead are separated by some number of sectors.
99 * It is specified as the ratio of physical sectors traversed
100 * per logical sector. Thus an interleave of 1:1 implies contiguous
101 * layout, while 2:1 implies that logical sector 0 is separated
102 * by one sector from logical sector 1.
103 * d_trackskew is the offset of sector 0 on track N
104 * relative to sector 0 on track N-1 on the same cylinder.
105 * Finally, d_cylskew is the offset of sector 0 on cylinder N
106 * relative to sector 0 on cylinder N-1.
108 uint16_t d_rpm; /* rotational speed */
109 uint16_t d_interleave; /* hardware sector interleave */
110 uint16_t d_trackskew; /* sector 0 skew, per track */
111 uint16_t d_cylskew; /* sector 0 skew, per cylinder */
112 uint32_t d_headswitch; /* head switch time, usec */
113 uint32_t d_trkseek; /* track-to-track seek, usec */
114 uint32_t d_flags; /* generic flags */
116 uint32_t d_drivedata[NDDATA]; /* drive-type specific information */
118 uint32_t d_spare[NSPARE]; /* reserved for future use */
119 uint32_t d_magic2; /* the magic number (again) */
120 uint16_t d_checksum; /* xor of data incl. partitions */
121 /* filesystem and partition information: */
122 uint16_t d_npartitions; /* number of partitions in following */
123 uint32_t d_bbsize; /* size of boot area at sn0, bytes */
124 uint32_t d_sbsize; /* max size of fs superblock, bytes */
125 struct xbsd_partition { /* the partition table */
126 uint32_t p_size; /* number of sectors in partition */
127 uint32_t p_offset; /* starting sector */
128 uint32_t p_fsize; /* filesystem basic fragment size */
129 uint8_t p_fstype; /* filesystem type, see below */
130 uint8_t p_frag; /* filesystem fragments per block */
131 uint16_t p_cpg; /* filesystem cylinders per group */
132 } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */
136 #define BSD_DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */
137 #define BSD_DTYPE_MSCP 2 /* MSCP */
138 #define BSD_DTYPE_DEC 3 /* other DEC (rk, rl) */
139 #define BSD_DTYPE_SCSI 4 /* SCSI */
140 #define BSD_DTYPE_ESDI 5 /* ESDI interface */
141 #define BSD_DTYPE_ST506 6 /* ST506 etc. */
142 #define BSD_DTYPE_HPIB 7 /* CS/80 on HP-IB */
143 #define BSD_DTYPE_HPFL 8 /* HP Fiber-link */
144 #define BSD_DTYPE_FLOPPY 10 /* floppy */
146 /* d_subtype values: */
147 #define BSD_DSTYPE_INDOSPART 0x8 /* is inside dos partition */
148 #define BSD_DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */
149 #define BSD_DSTYPE_GEOMETRY 0x10 /* drive params in label */
151 static const char *const xbsd_dktypenames[] = {
168 * Filesystem type and version.
169 * Used to interpret other filesystem-specific
170 * per-partition information.
172 #define BSD_FS_UNUSED 0 /* unused */
173 #define BSD_FS_SWAP 1 /* swap */
174 #define BSD_FS_V6 2 /* Sixth Edition */
175 #define BSD_FS_V7 3 /* Seventh Edition */
176 #define BSD_FS_SYSV 4 /* System V */
177 #define BSD_FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */
178 #define BSD_FS_V8 6 /* Eighth Edition, 4K blocks */
179 #define BSD_FS_BSDFFS 7 /* 4.2BSD fast file system */
180 #define BSD_FS_BSDLFS 9 /* 4.4BSD log-structured file system */
181 #define BSD_FS_OTHER 10 /* in use, but unknown/unsupported */
182 #define BSD_FS_HPFS 11 /* OS/2 high-performance file system */
183 #define BSD_FS_ISO9660 12 /* ISO-9660 filesystem (cdrom) */
184 #define BSD_FS_ISOFS BSD_FS_ISO9660
185 #define BSD_FS_BOOT 13 /* partition contains bootstrap */
186 #define BSD_FS_ADOS 14 /* AmigaDOS fast file system */
187 #define BSD_FS_HFS 15 /* Macintosh HFS */
188 #define BSD_FS_ADVFS 16 /* Digital Unix AdvFS */
190 /* this is annoying, but it's also the way it is :-( */
192 #define BSD_FS_EXT2 8 /* ext2 file system */
194 #define BSD_FS_MSDOS 8 /* MS-DOS file system */
197 static const char *const xbsd_fstypes[] = {
198 "\x00" "unused", /* BSD_FS_UNUSED */
199 "\x01" "swap", /* BSD_FS_SWAP */
200 "\x02" "Version 6", /* BSD_FS_V6 */
201 "\x03" "Version 7", /* BSD_FS_V7 */
202 "\x04" "System V", /* BSD_FS_SYSV */
203 "\x05" "4.1BSD", /* BSD_FS_V71K */
204 "\x06" "Eighth Edition", /* BSD_FS_V8 */
205 "\x07" "4.2BSD", /* BSD_FS_BSDFFS */
207 "\x08" "ext2", /* BSD_FS_EXT2 */
209 "\x08" "MS-DOS", /* BSD_FS_MSDOS */
211 "\x09" "4.4LFS", /* BSD_FS_BSDLFS */
212 "\x0a" "unknown", /* BSD_FS_OTHER */
213 "\x0b" "HPFS", /* BSD_FS_HPFS */
214 "\x0c" "ISO-9660", /* BSD_FS_ISO9660 */
215 "\x0d" "boot", /* BSD_FS_BOOT */
216 "\x0e" "ADOS", /* BSD_FS_ADOS */
217 "\x0f" "HFS", /* BSD_FS_HFS */
218 "\x10" "AdvFS", /* BSD_FS_ADVFS */
224 * flags shared by various drives:
226 #define BSD_D_REMOVABLE 0x01 /* removable media */
227 #define BSD_D_ECC 0x02 /* supports ECC */
228 #define BSD_D_BADSECT 0x04 /* supports bad sector forw. */
229 #define BSD_D_RAMDISK 0x08 /* disk emulator */
230 #define BSD_D_CHAIN 0x10 /* can do back-back transfers */
231 #define BSD_D_DOSPART 0x20 /* within MSDOS partition */
235 19990319 - Arnaldo Carvalho de Melo <acme@conectiva.com.br> - i18n/nls
237 20000101 - David Huggins-Daines <dhuggins@linuxcare.com> - Better
238 support for OSF/1 disklabels on Alpha.
239 Also fixed unaligned accesses in alpha_bootblock_checksum()
242 #define FREEBSD_PARTITION 0xa5
243 #define NETBSD_PARTITION 0xa9
245 static void xbsd_delete_part(void);
246 static void xbsd_new_part(void);
247 static void xbsd_write_disklabel(void);
248 static int xbsd_create_disklabel(void);
249 static void xbsd_edit_disklabel(void);
250 static void xbsd_write_bootstrap(void);
251 static void xbsd_change_fstype(void);
252 static int xbsd_get_part_index(int max);
253 static int xbsd_check_new_partition(int *i);
254 static void xbsd_list_types(void);
255 static uint16_t xbsd_dkcksum(struct xbsd_disklabel *lp);
256 static int xbsd_initlabel(struct partition *p);
257 static int xbsd_readlabel(struct partition *p);
258 static int xbsd_writelabel(struct partition *p);
260 #if defined(__alpha__)
261 static void alpha_bootblock_checksum(char *boot);
264 #if !defined(__alpha__)
265 static int xbsd_translate_fstype(int linux_type);
266 static void xbsd_link_part(void);
267 static struct partition *xbsd_part;
268 static int xbsd_part_index;
272 /* Group big globals data and allocate it in one go */
274 /* We access this through a uint64_t * when checksumming */
275 /* hopefully xmalloc gives us required alignment */
276 char disklabelbuffer[BSD_BBSIZE];
277 struct xbsd_disklabel xbsd_dlabel;
280 static struct bsd_globals *bsd_globals_ptr;
282 #define disklabelbuffer (bsd_globals_ptr->disklabelbuffer)
283 #define xbsd_dlabel (bsd_globals_ptr->xbsd_dlabel)
288 #define bsd_cround(n) \
289 (display_in_cyl_units ? ((n)/xbsd_dlabel.d_secpercyl) + 1 : (n))
292 * Test whether the whole disk has BSD disk label magic.
294 * Note: often reformatting with DOS-type label leaves the BSD magic,
295 * so this does not mean that there is a BSD disk label.
298 check_osf_label(void)
300 if (xbsd_readlabel(NULL) == 0)
306 bsd_trydev(const char * dev)
308 if (xbsd_readlabel(NULL) == 0)
310 printf("\nBSD label for device: %s\n", dev);
311 xbsd_print_disklabel(0);
318 puts("Command Action");
319 puts("d\tdelete a BSD partition");
320 puts("e\tedit drive data");
321 puts("i\tinstall bootstrap");
322 puts("l\tlist known filesystem types");
323 puts("n\tadd a new BSD partition");
324 puts("p\tprint BSD partition table");
325 puts("q\tquit without saving changes");
326 puts("r\treturn to main menu");
327 puts("s\tshow complete disklabel");
328 puts("t\tchange a partition's filesystem id");
329 puts("u\tchange units (cylinders/sectors)");
330 puts("w\twrite disklabel to disk");
331 #if !defined(__alpha__)
332 puts("x\tlink BSD partition to non-BSD partition");
336 #if !defined(__alpha__)
344 is_bsd_partition_type(int type)
346 return (type == FREEBSD_PARTITION ||
347 type == hidden(FREEBSD_PARTITION) ||
348 type == NETBSD_PARTITION ||
349 type == hidden(NETBSD_PARTITION));
356 #if !defined(__alpha__)
360 for (t = 0; t < 4; t++) {
361 p = get_part_table(t);
362 if (p && is_bsd_partition_type(p->sys_ind)) {
365 ss = get_start_sect(xbsd_part);
367 printf("Partition %s has invalid starting sector 0\n",
368 partname(disk_device, t+1, 0));
371 printf("Reading disklabel of %s at sector %u\n",
372 partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR);
373 if (xbsd_readlabel(xbsd_part) == 0)
374 if (xbsd_create_disklabel() == 0)
381 printf("There is no *BSD partition on %s\n", disk_device);
385 #elif defined(__alpha__)
387 if (xbsd_readlabel(NULL) == 0)
388 if (xbsd_create_disklabel() == 0)
395 switch (tolower(read_nonempty("BSD disklabel command (m for help): "))) {
400 xbsd_edit_disklabel();
403 xbsd_write_bootstrap();
412 xbsd_print_disklabel(0);
415 if (ENABLE_FEATURE_CLEAN_UP)
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 static const int d_masks[] = { BSD_D_REMOVABLE, BSD_D_ECC, BSD_D_BADSECT };
506 #if defined(__alpha__)
507 printf("# %s:\n", disk_device);
509 printf("# %s:\n", partname(disk_device, xbsd_part_index+1, 0));
511 if ((unsigned) lp->d_type < ARRAY_SIZE(xbsd_dktypenames)-1)
512 printf("type: %s\n", xbsd_dktypenames[lp->d_type]);
514 printf("type: %u\n", lp->d_type);
515 printf("disk: %.*s\n", (int) sizeof(lp->d_typename), lp->d_typename);
516 printf("label: %.*s\n", (int) sizeof(lp->d_packname), lp->d_packname);
518 print_flags_separated(d_masks, "removable\0""ecc\0""badsect\0", lp->d_flags, " ");
520 /* On various machines the fields of *lp are short/int/long */
521 /* In order to avoid problems, we cast them all to long. */
522 printf("bytes/sector: %lu\n", (long) lp->d_secsize);
523 printf("sectors/track: %lu\n", (long) lp->d_nsectors);
524 printf("tracks/cylinder: %lu\n", (long) lp->d_ntracks);
525 printf("sectors/cylinder: %lu\n", (long) lp->d_secpercyl);
526 printf("cylinders: %lu\n", (long) lp->d_ncylinders);
527 printf("rpm: %u\n", lp->d_rpm);
528 printf("interleave: %u\n", lp->d_interleave);
529 printf("trackskew: %u\n", lp->d_trackskew);
530 printf("cylinderskew: %u\n", lp->d_cylskew);
531 printf("headswitch: %lu\t\t# milliseconds\n",
532 (long) lp->d_headswitch);
533 printf("track-to-track seek: %lu\t# milliseconds\n",
534 (long) lp->d_trkseek);
535 printf("drivedata: ");
536 for (i = NDDATA - 1; i >= 0; i--)
537 if (lp->d_drivedata[i])
541 for (j = 0; j <= i; j++)
542 printf("%lu ", (long) lp->d_drivedata[j]);
544 printf("\n%u partitions:\n", lp->d_npartitions);
545 printf("# start end size fstype [fsize bsize cpg]\n");
546 pp = lp->d_partitions;
547 for (i = 0; i < lp->d_npartitions; i++, pp++) {
549 if (display_in_cyl_units && lp->d_secpercyl) {
550 printf(" %c: %8lu%c %8lu%c %8lu%c ",
552 (unsigned long) pp->p_offset / lp->d_secpercyl + 1,
553 (pp->p_offset % lp->d_secpercyl) ? '*' : ' ',
554 (unsigned long) (pp->p_offset + pp->p_size + lp->d_secpercyl - 1) / lp->d_secpercyl,
555 ((pp->p_offset + pp->p_size) % lp->d_secpercyl) ? '*' : ' ',
556 (long) pp->p_size / lp->d_secpercyl,
557 (pp->p_size % lp->d_secpercyl) ? '*' : ' '
560 printf(" %c: %8lu %8lu %8lu ",
563 (long) pp->p_offset + pp->p_size - 1,
568 if ((unsigned) pp->p_fstype < ARRAY_SIZE(xbsd_fstypes)-1)
569 printf("%8.8s", xbsd_fstypes[pp->p_fstype]);
571 printf("%8x", pp->p_fstype);
573 switch (pp->p_fstype) {
575 printf(" %5lu %5lu %5.5s ",
576 (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, "");
579 printf(" %5lu %5lu %5u ",
580 (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg);
583 printf("%22.22s", "");
592 xbsd_write_disklabel(void)
594 #if defined(__alpha__)
595 printf("Writing disklabel to %s\n", disk_device);
596 xbsd_writelabel(NULL);
598 printf("Writing disklabel to %s\n",
599 partname(disk_device, xbsd_part_index + 1, 0));
600 xbsd_writelabel(xbsd_part);
602 reread_partition_table(0); /* no exit yet */
606 xbsd_create_disklabel(void)
610 #if defined(__alpha__)
611 printf("%s contains no disklabel\n", disk_device);
613 printf("%s contains no disklabel\n",
614 partname(disk_device, xbsd_part_index + 1, 0));
618 c = read_nonempty("Do you want to create a disklabel? (y/n) ");
619 if ((c|0x20) == 'y') {
621 #if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \
622 defined(__s390__) || defined(__s390x__)
628 xbsd_print_disklabel(1);
639 edit_int(int def, const char *mesg)
641 mesg = xasprintf("%s (%u): ", mesg, def);
643 if (!read_line(mesg))
645 } while (!isdigit(*line_ptr));
646 def = atoi(line_ptr);
653 xbsd_edit_disklabel(void)
655 struct xbsd_disklabel *d;
659 #if defined(__alpha__) || defined(__ia64__)
660 d->d_secsize = edit_int(d->d_secsize , "bytes/sector");
661 d->d_nsectors = edit_int(d->d_nsectors , "sectors/track");
662 d->d_ntracks = edit_int(d->d_ntracks , "tracks/cylinder");
663 d->d_ncylinders = edit_int(d->d_ncylinders , "cylinders");
666 /* d->d_secpercyl can be != d->d_nsectors * d->d_ntracks */
668 d->d_secpercyl = edit_int(d->d_nsectors * d->d_ntracks,
670 if (d->d_secpercyl <= d->d_nsectors * d->d_ntracks)
673 printf("Must be <= sectors/track * tracks/cylinder (default)\n");
675 d->d_rpm = edit_int(d->d_rpm , "rpm");
676 d->d_interleave = edit_int(d->d_interleave, "interleave");
677 d->d_trackskew = edit_int(d->d_trackskew , "trackskew");
678 d->d_cylskew = edit_int(d->d_cylskew , "cylinderskew");
679 d->d_headswitch = edit_int(d->d_headswitch, "headswitch");
680 d->d_trkseek = edit_int(d->d_trkseek , "track-to-track seek");
682 d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
686 xbsd_get_bootstrap(char *path, void *ptr, int size)
690 fdb = open_or_warn(path, O_RDONLY);
694 if (full_read(fdb, ptr, size) < 0) {
695 bb_simple_perror_msg(path);
699 printf(" ... %s\n", path);
707 printf("Syncing disks\n");
709 /* sleep(4); What? */
713 xbsd_write_bootstrap(void)
715 char path[MAXPATHLEN];
716 const char *bootdir = BSD_LINUX_BOOTDIR;
717 const char *dkbasename;
718 struct xbsd_disklabel dl;
722 if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI)
727 snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ",
728 dkbasename, dkbasename, dkbasename);
729 if (read_line(path)) {
730 dkbasename = line_ptr;
732 snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename);
733 if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize))
736 /* We need a backup of the disklabel (xbsd_dlabel might have changed). */
737 d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE];
738 memmove(&dl, d, sizeof(struct xbsd_disklabel));
740 /* The disklabel will be overwritten by 0's from bootxx anyway */
741 memset(d, 0, sizeof(struct xbsd_disklabel));
743 snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename);
744 if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize],
745 (int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize))
748 e = d + sizeof(struct xbsd_disklabel);
749 for (p = d; p < e; p++)
751 printf("Bootstrap overlaps with disk label!\n");
755 memmove(d, &dl, sizeof(struct xbsd_disklabel));
757 #if defined(__powerpc__) || defined(__hppa__)
759 #elif defined(__alpha__)
761 alpha_bootblock_checksum(disklabelbuffer);
763 sector = get_start_sect(xbsd_part);
767 xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE);
769 #if defined(__alpha__)
770 printf("Bootstrap installed on %s\n", disk_device);
772 printf("Bootstrap installed on %s\n",
773 partname(disk_device, xbsd_part_index+1, 0));
780 xbsd_change_fstype(void)
784 i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
785 xbsd_dlabel.d_partitions[i].p_fstype = read_hex(xbsd_fstypes);
789 xbsd_get_part_index(int max)
791 char prompt[sizeof("Partition (a-%c): ") + 16];
794 snprintf(prompt, sizeof(prompt), "Partition (a-%c): ", 'a' + max - 1);
796 l = tolower(read_nonempty(prompt));
797 while (l < 'a' || l > 'a' + max - 1);
802 xbsd_check_new_partition(int *i)
804 /* room for more? various BSD flavours have different maxima */
805 if (xbsd_dlabel.d_npartitions == BSD_MAXPARTITIONS) {
808 for (t = 0; t < BSD_MAXPARTITIONS; t++)
809 if (xbsd_dlabel.d_partitions[t].p_size == 0)
812 if (t == BSD_MAXPARTITIONS) {
813 printf("The maximum number of partitions has been created\n");
818 *i = xbsd_get_part_index(BSD_MAXPARTITIONS);
820 if (*i >= xbsd_dlabel.d_npartitions)
821 xbsd_dlabel.d_npartitions = (*i) + 1;
823 if (xbsd_dlabel.d_partitions[*i].p_size != 0) {
824 printf("This partition already exists\n");
832 xbsd_list_types(void)
834 list_types(xbsd_fstypes);
838 xbsd_dkcksum(struct xbsd_disklabel *lp)
840 uint16_t *start, *end;
843 start = (uint16_t *) lp;
844 end = (uint16_t *) &lp->d_partitions[lp->d_npartitions];
851 xbsd_initlabel(struct partition *p)
853 struct xbsd_disklabel *d = &xbsd_dlabel;
854 struct xbsd_partition *pp;
857 memset(d, 0, sizeof(struct xbsd_disklabel));
859 d->d_magic = BSD_DISKMAGIC;
861 if (strncmp(disk_device, "/dev/sd", 7) == 0)
862 d->d_type = BSD_DTYPE_SCSI;
864 d->d_type = BSD_DTYPE_ST506;
866 #if !defined(__alpha__)
867 d->d_flags = BSD_D_DOSPART;
871 d->d_secsize = SECTOR_SIZE; /* bytes/sector */
872 d->d_nsectors = g_sectors; /* sectors/track */
873 d->d_ntracks = g_heads; /* tracks/cylinder (heads) */
874 d->d_ncylinders = g_cylinders;
875 d->d_secpercyl = g_sectors * g_heads;/* sectors/cylinder */
876 if (d->d_secpercyl == 0)
877 d->d_secpercyl = 1; /* avoid segfaults */
878 d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
887 d->d_magic2 = BSD_DISKMAGIC;
888 d->d_bbsize = BSD_BBSIZE;
889 d->d_sbsize = BSD_SBSIZE;
891 #if !defined(__alpha__)
892 d->d_npartitions = 4;
893 pp = &d->d_partitions[2]; /* Partition C should be NetBSD partition */
895 pp->p_offset = get_start_sect(p);
896 pp->p_size = get_nr_sects(p);
897 pp->p_fstype = BSD_FS_UNUSED;
898 pp = &d->d_partitions[3]; /* Partition D should be whole disk */
901 pp->p_size = d->d_secperunit;
902 pp->p_fstype = BSD_FS_UNUSED;
904 d->d_npartitions = 3;
905 pp = &d->d_partitions[2]; /* Partition C should be
908 pp->p_size = d->d_secperunit;
909 pp->p_fstype = BSD_FS_UNUSED;
916 * Read a xbsd_disklabel from sector 0 or from the starting sector of p.
917 * If it has the right magic, return 1.
920 xbsd_readlabel(struct partition *p)
922 struct xbsd_disklabel *d;
925 if (!bsd_globals_ptr)
926 bsd_globals_ptr = xzalloc(sizeof(*bsd_globals_ptr));
930 /* p is used only to get the starting sector */
931 #if !defined(__alpha__)
932 sector = (p ? get_start_sect(p) : 0);
938 if (BSD_BBSIZE != full_read(dev_fd, disklabelbuffer, BSD_BBSIZE))
939 fdisk_fatal(unable_to_read);
941 memmove(d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
942 sizeof(struct xbsd_disklabel));
944 if (d->d_magic != BSD_DISKMAGIC || d->d_magic2 != BSD_DISKMAGIC)
947 for (t = d->d_npartitions; t < BSD_MAXPARTITIONS; t++) {
948 d->d_partitions[t].p_size = 0;
949 d->d_partitions[t].p_offset = 0;
950 d->d_partitions[t].p_fstype = BSD_FS_UNUSED;
953 if (d->d_npartitions > BSD_MAXPARTITIONS)
954 printf("Warning: too many partitions (%u, maximum is %u)\n",
955 d->d_npartitions, BSD_MAXPARTITIONS);
960 xbsd_writelabel(struct partition *p)
962 struct xbsd_disklabel *d = &xbsd_dlabel;
965 #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
966 sector = get_start_sect(p) + BSD_LABELSECTOR;
968 (void)p; /* silence warning */
969 sector = BSD_LABELSECTOR;
973 d->d_checksum = xbsd_dkcksum(d);
975 /* This is necessary if we want to write the bootstrap later,
976 otherwise we'd write the old disklabel with the bootstrap.
978 memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
979 d, sizeof(struct xbsd_disklabel));
981 #if defined(__alpha__) && BSD_LABELSECTOR == 0
982 alpha_bootblock_checksum(disklabelbuffer);
984 xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE);
987 lseek(dev_fd, BSD_LABELOFFSET, SEEK_CUR);
988 xwrite(dev_fd, d, sizeof(*d));
995 #if !defined(__alpha__)
997 xbsd_translate_fstype(int linux_type)
999 switch (linux_type) {
1000 case 0x01: /* DOS 12-bit FAT */
1001 case 0x04: /* DOS 16-bit <32M */
1002 case 0x06: /* DOS 16-bit >=32M */
1003 case 0xe1: /* DOS access */
1004 case 0xe3: /* DOS R/O */
1005 case 0xf2: /* DOS secondary */
1006 return BSD_FS_MSDOS;
1007 case 0x07: /* OS/2 HPFS */
1010 return BSD_FS_OTHER;
1015 xbsd_link_part(void)
1018 struct partition *p;
1020 k = get_partition(1, g_partitions);
1022 if (!xbsd_check_new_partition(&i))
1025 p = get_part_table(k);
1027 xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p);
1028 xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p);
1029 xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind);
1033 #if defined(__alpha__)
1035 alpha_bootblock_checksum(char *boot)
1040 dp = (uint64_t *)boot;
1042 for (i = 0; i < 63; i++)
1046 #endif /* __alpha__ */
1048 /* Undefine 'global' tricks */
1049 #undef disklabelbuffer
1052 #endif /* OSF_LABEL */