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busybox/util-linux/fdisk_osf.c
Denis Vlasenko 8e1c71529c Convert cmdedit into more generic line input facility 
(make history and completion optional at runtime).
Use it for fdisk, as an example.
Some unrelated fixes in fdisk are also here.
2007-01-22 07:21:38 +00:00

1047 lines
30 KiB
C
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#if ENABLE_FEATURE_OSF_LABEL
/*
* Copyright (c) 1987, 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef BSD_DISKMAGIC
#define BSD_DISKMAGIC ((uint32_t) 0x82564557)
#endif
#ifndef BSD_MAXPARTITIONS
#define BSD_MAXPARTITIONS 16
#endif
#define BSD_LINUX_BOOTDIR "/usr/ucb/mdec"
#if defined(i386) || defined(__sparc__) || defined(__arm__) \
|| defined(__m68k__) || defined(__mips__) || defined(__s390__) \
|| defined(__sh__) || defined(__x86_64__)
#define BSD_LABELSECTOR 1
#define BSD_LABELOFFSET 0
#elif defined(__alpha__) || defined(__powerpc__) || defined(__ia64__) \
|| defined(__hppa__)
#define BSD_LABELSECTOR 0
#define BSD_LABELOFFSET 64
#elif defined(__s390__) || defined(__s390x__)
#define BSD_LABELSECTOR 1
#define BSD_LABELOFFSET 0
#else
#error unknown architecture
#endif
#define BSD_BBSIZE 8192 /* size of boot area, with label */
#define BSD_SBSIZE 8192 /* max size of fs superblock */
struct xbsd_disklabel {
uint32_t d_magic; /* the magic number */
int16_t d_type; /* drive type */
int16_t d_subtype; /* controller/d_type specific */
char d_typename[16]; /* type name, e.g. "eagle" */
char d_packname[16]; /* pack identifier */
/* disk geometry: */
uint32_t d_secsize; /* # of bytes per sector */
uint32_t d_nsectors; /* # of data sectors per track */
uint32_t d_ntracks; /* # of tracks per cylinder */
uint32_t d_ncylinders; /* # of data cylinders per unit */
uint32_t d_secpercyl; /* # of data sectors per cylinder */
uint32_t d_secperunit; /* # of data sectors per unit */
/*
* Spares (bad sector replacements) below
* are not counted in d_nsectors or d_secpercyl.
* Spare sectors are assumed to be physical sectors
* which occupy space at the end of each track and/or cylinder.
*/
uint16_t d_sparespertrack; /* # of spare sectors per track */
uint16_t d_sparespercyl; /* # of spare sectors per cylinder */
/*
* Alternate cylinders include maintenance, replacement,
* configuration description areas, etc.
*/
uint32_t d_acylinders; /* # of alt. cylinders per unit */
/* hardware characteristics: */
/*
* d_interleave, d_trackskew and d_cylskew describe perturbations
* in the media format used to compensate for a slow controller.
* Interleave is physical sector interleave, set up by the formatter
* or controller when formatting. When interleaving is in use,
* logically adjacent sectors are not physically contiguous,
* but instead are separated by some number of sectors.
* It is specified as the ratio of physical sectors traversed
* per logical sector. Thus an interleave of 1:1 implies contiguous
* layout, while 2:1 implies that logical sector 0 is separated
* by one sector from logical sector 1.
* d_trackskew is the offset of sector 0 on track N
* relative to sector 0 on track N-1 on the same cylinder.
* Finally, d_cylskew is the offset of sector 0 on cylinder N
* relative to sector 0 on cylinder N-1.
*/
uint16_t d_rpm; /* rotational speed */
uint16_t d_interleave; /* hardware sector interleave */
uint16_t d_trackskew; /* sector 0 skew, per track */
uint16_t d_cylskew; /* sector 0 skew, per cylinder */
uint32_t d_headswitch; /* head switch time, usec */
uint32_t d_trkseek; /* track-to-track seek, usec */
uint32_t d_flags; /* generic flags */
#define NDDATA 5
uint32_t d_drivedata[NDDATA]; /* drive-type specific information */
#define NSPARE 5
uint32_t d_spare[NSPARE]; /* reserved for future use */
uint32_t d_magic2; /* the magic number (again) */
uint16_t d_checksum; /* xor of data incl. partitions */
/* filesystem and partition information: */
uint16_t d_npartitions; /* number of partitions in following */
uint32_t d_bbsize; /* size of boot area at sn0, bytes */
uint32_t d_sbsize; /* max size of fs superblock, bytes */
struct xbsd_partition { /* the partition table */
uint32_t p_size; /* number of sectors in partition */
uint32_t p_offset; /* starting sector */
uint32_t p_fsize; /* filesystem basic fragment size */
uint8_t p_fstype; /* filesystem type, see below */
uint8_t p_frag; /* filesystem fragments per block */
uint16_t p_cpg; /* filesystem cylinders per group */
} d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */
};
/* d_type values: */
#define BSD_DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */
#define BSD_DTYPE_MSCP 2 /* MSCP */
#define BSD_DTYPE_DEC 3 /* other DEC (rk, rl) */
#define BSD_DTYPE_SCSI 4 /* SCSI */
#define BSD_DTYPE_ESDI 5 /* ESDI interface */
#define BSD_DTYPE_ST506 6 /* ST506 etc. */
#define BSD_DTYPE_HPIB 7 /* CS/80 on HP-IB */
#define BSD_DTYPE_HPFL 8 /* HP Fiber-link */
#define BSD_DTYPE_FLOPPY 10 /* floppy */
/* d_subtype values: */
#define BSD_DSTYPE_INDOSPART 0x8 /* is inside dos partition */
#define BSD_DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */
#define BSD_DSTYPE_GEOMETRY 0x10 /* drive params in label */
static const char * const xbsd_dktypenames[] = {
"unknown",
"SMD",
"MSCP",
"old DEC",
"SCSI",
"ESDI",
"ST506",
"HP-IB",
"HP-FL",
"type 9",
"floppy",
0
};
#define BSD_DKMAXTYPES (sizeof(xbsd_dktypenames) / sizeof(xbsd_dktypenames[0]) - 1)
/*
* Filesystem type and version.
* Used to interpret other filesystem-specific
* per-partition information.
*/
#define BSD_FS_UNUSED 0 /* unused */
#define BSD_FS_SWAP 1 /* swap */
#define BSD_FS_V6 2 /* Sixth Edition */
#define BSD_FS_V7 3 /* Seventh Edition */
#define BSD_FS_SYSV 4 /* System V */
#define BSD_FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */
#define BSD_FS_V8 6 /* Eighth Edition, 4K blocks */
#define BSD_FS_BSDFFS 7 /* 4.2BSD fast file system */
#define BSD_FS_BSDLFS 9 /* 4.4BSD log-structured file system */
#define BSD_FS_OTHER 10 /* in use, but unknown/unsupported */
#define BSD_FS_HPFS 11 /* OS/2 high-performance file system */
#define BSD_FS_ISO9660 12 /* ISO-9660 filesystem (cdrom) */
#define BSD_FS_ISOFS BSD_FS_ISO9660
#define BSD_FS_BOOT 13 /* partition contains bootstrap */
#define BSD_FS_ADOS 14 /* AmigaDOS fast file system */
#define BSD_FS_HFS 15 /* Macintosh HFS */
#define BSD_FS_ADVFS 16 /* Digital Unix AdvFS */
/* this is annoying, but it's also the way it is :-( */
#ifdef __alpha__
#define BSD_FS_EXT2 8 /* ext2 file system */
#else
#define BSD_FS_MSDOS 8 /* MS-DOS file system */
#endif
static const struct systypes xbsd_fstypes[] = {
{ "\x00" "unused" }, /* BSD_FS_UNUSED */
{ "\x01" "swap" }, /* BSD_FS_SWAP */
{ "\x02" "Version 6" }, /* BSD_FS_V6 */
{ "\x03" "Version 7" }, /* BSD_FS_V7 */
{ "\x04" "System V" }, /* BSD_FS_SYSV */
{ "\x05" "4.1BSD" }, /* BSD_FS_V71K */
{ "\x06" "Eighth Edition" }, /* BSD_FS_V8 */
{ "\x07" "4.2BSD" }, /* BSD_FS_BSDFFS */
#ifdef __alpha__
{ "\x08" "ext2" }, /* BSD_FS_EXT2 */
#else
{ "\x08" "MS-DOS" }, /* BSD_FS_MSDOS */
#endif
{ "\x09" "4.4LFS" }, /* BSD_FS_BSDLFS */
{ "\x0a" "unknown" }, /* BSD_FS_OTHER */
{ "\x0b" "HPFS" }, /* BSD_FS_HPFS */
{ "\x0c" "ISO-9660" }, /* BSD_FS_ISO9660 */
{ "\x0d" "boot" }, /* BSD_FS_BOOT */
{ "\x0e" "ADOS" }, /* BSD_FS_ADOS */
{ "\x0f" "HFS" }, /* BSD_FS_HFS */
{ "\x10" "AdvFS" }, /* BSD_FS_ADVFS */
{ NULL }
};
#define BSD_FSMAXTYPES (SIZE(xbsd_fstypes)-1)
/*
* flags shared by various drives:
*/
#define BSD_D_REMOVABLE 0x01 /* removable media */
#define BSD_D_ECC 0x02 /* supports ECC */
#define BSD_D_BADSECT 0x04 /* supports bad sector forw. */
#define BSD_D_RAMDISK 0x08 /* disk emulator */
#define BSD_D_CHAIN 0x10 /* can do back-back transfers */
#define BSD_D_DOSPART 0x20 /* within MSDOS partition */
/*
Changes:
19990319 - Arnaldo Carvalho de Melo <acme@conectiva.com.br> - i18n/nls
20000101 - David Huggins-Daines <dhuggins@linuxcare.com> - Better
support for OSF/1 disklabels on Alpha.
Also fixed unaligned accesses in alpha_bootblock_checksum()
*/
static int possibly_osf_label;
#define FREEBSD_PARTITION 0xa5
#define NETBSD_PARTITION 0xa9
static void xbsd_delete_part(void);
static void xbsd_new_part(void);
static void xbsd_write_disklabel(void);
static int xbsd_create_disklabel(void);
static void xbsd_edit_disklabel(void);
static void xbsd_write_bootstrap(void);
static void xbsd_change_fstype(void);
static int xbsd_get_part_index(int max);
static int xbsd_check_new_partition(int *i);
static void xbsd_list_types(void);
static uint16_t xbsd_dkcksum(struct xbsd_disklabel *lp);
static int xbsd_initlabel(struct partition *p, struct xbsd_disklabel *d);
static int xbsd_readlabel(struct partition *p, struct xbsd_disklabel *d);
static int xbsd_writelabel(struct partition *p, struct xbsd_disklabel *d);
#if defined(__alpha__)
static void alpha_bootblock_checksum(char *boot);
#endif
#if !defined(__alpha__)
static int xbsd_translate_fstype(int linux_type);
static void xbsd_link_part(void);
static struct partition *xbsd_part;
static int xbsd_part_index;
#endif
/* We access this through a uint64_t * when checksumming */
/* hopefully xmalloc gives us required alignment */
static char *disklabelbuffer; /*[BSD_BBSIZE]*/
static struct xbsd_disklabel xbsd_dlabel;
#define bsd_cround(n) \
(display_in_cyl_units ? ((n)/xbsd_dlabel.d_secpercyl) + 1 : (n))
/*
* Test whether the whole disk has BSD disk label magic.
*
* Note: often reformatting with DOS-type label leaves the BSD magic,
* so this does not mean that there is a BSD disk label.
*/
static int
check_osf_label(void)
{
if (xbsd_readlabel(NULL, &xbsd_dlabel) == 0)
return 0;
return 1;
}
static int
bsd_trydev(const char * dev)
{
if (xbsd_readlabel(NULL, &xbsd_dlabel) == 0)
return -1;
printf(_("\nBSD label for device: %s\n"), dev);
xbsd_print_disklabel(0);
return 0;
}
static void
bsd_menu(void)
{
puts(_("Command Action"));
puts(_("d\tdelete a BSD partition"));
puts(_("e\tedit drive data"));
puts(_("i\tinstall bootstrap"));
puts(_("l\tlist known filesystem types"));
puts(_("n\tadd a new BSD partition"));
puts(_("p\tprint BSD partition table"));
puts(_("q\tquit without saving changes"));
puts(_("r\treturn to main menu"));
puts(_("s\tshow complete disklabel"));
puts(_("t\tchange a partition's filesystem id"));
puts(_("u\tchange units (cylinders/sectors)"));
puts(_("w\twrite disklabel to disk"));
#if !defined(__alpha__)
puts(_("x\tlink BSD partition to non-BSD partition"));
#endif
}
#if !defined(__alpha__)
static int
hidden(int type)
{
return type ^ 0x10;
}
static int
is_bsd_partition_type(int type)
{
return (type == FREEBSD_PARTITION ||
type == hidden(FREEBSD_PARTITION) ||
type == NETBSD_PARTITION ||
type == hidden(NETBSD_PARTITION));
}
#endif
static void
bsd_select(void)
{
#if !defined(__alpha__)
int t, ss;
struct partition *p;
for (t = 0; t < 4; t++) {
p = get_part_table(t);
if (p && is_bsd_partition_type(p->sys_ind)) {
xbsd_part = p;
xbsd_part_index = t;
ss = get_start_sect(xbsd_part);
if (ss == 0) {
fprintf(stderr, _("Partition %s has invalid starting sector 0.\n"),
partname(disk_device, t+1, 0));
return;
}
printf(_("Reading disklabel of %s at sector %d.\n"),
partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR);
if (xbsd_readlabel(xbsd_part, &xbsd_dlabel) == 0)
if (xbsd_create_disklabel() == 0)
return;
break;
}
}
if (t == 4) {
printf(_("There is no *BSD partition on %s.\n"), disk_device);
return;
}
#elif defined(__alpha__)
if (xbsd_readlabel(NULL, &xbsd_dlabel) == 0)
if (xbsd_create_disklabel() == 0)
exit(EXIT_SUCCESS);
#endif
while (1) {
putchar('\n');
switch (tolower(read_nonempty(_("BSD disklabel command (m for help): ")))) {
case 'd':
xbsd_delete_part();
break;
case 'e':
xbsd_edit_disklabel();
break;
case 'i':
xbsd_write_bootstrap();
break;
case 'l':
xbsd_list_types();
break;
case 'n':
xbsd_new_part();
break;
case 'p':
xbsd_print_disklabel(0);
break;
case 'q':
close(fd);
exit(EXIT_SUCCESS);
case 'r':
return;
case 's':
xbsd_print_disklabel(1);
break;
case 't':
xbsd_change_fstype();
break;
case 'u':
change_units();
break;
case 'w':
xbsd_write_disklabel();
break;
#if !defined(__alpha__)
case 'x':
xbsd_link_part();
break;
#endif
default:
bsd_menu();
break;
}
}
}
static void
xbsd_delete_part(void)
{
int i;
i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
xbsd_dlabel.d_partitions[i].p_size = 0;
xbsd_dlabel.d_partitions[i].p_offset = 0;
xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED;
if (xbsd_dlabel.d_npartitions == i + 1)
while (xbsd_dlabel.d_partitions[xbsd_dlabel.d_npartitions-1].p_size == 0)
xbsd_dlabel.d_npartitions--;
}
static void
xbsd_new_part(void)
{
off_t begin, end;
char mesg[256];
int i;
if (!xbsd_check_new_partition(&i))
return;
#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
begin = get_start_sect(xbsd_part);
end = begin + get_nr_sects(xbsd_part) - 1;
#else
begin = 0;
end = xbsd_dlabel.d_secperunit - 1;
#endif
snprintf(mesg, sizeof(mesg), _("First %s"), str_units(SINGULAR));
begin = read_int(bsd_cround(begin), bsd_cround(begin), bsd_cround(end),
0, mesg);
if (display_in_cyl_units)
begin = (begin - 1) * xbsd_dlabel.d_secpercyl;
snprintf(mesg, sizeof(mesg), _("Last %s or +size or +sizeM or +sizeK"),
str_units(SINGULAR));
end = read_int(bsd_cround(begin), bsd_cround(end), bsd_cround(end),
bsd_cround(begin), mesg);
if (display_in_cyl_units)
end = end * xbsd_dlabel.d_secpercyl - 1;
xbsd_dlabel.d_partitions[i].p_size = end - begin + 1;
xbsd_dlabel.d_partitions[i].p_offset = begin;
xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED;
}
static void
xbsd_print_disklabel(int show_all)
{
struct xbsd_disklabel *lp = &xbsd_dlabel;
struct xbsd_partition *pp;
int i, j;
if (show_all) {
#if defined(__alpha__)
printf("# %s:\n", disk_device);
#else
printf("# %s:\n", partname(disk_device, xbsd_part_index+1, 0));
#endif
if ((unsigned) lp->d_type < BSD_DKMAXTYPES)
printf(_("type: %s\n"), xbsd_dktypenames[lp->d_type]);
else
printf(_("type: %d\n"), lp->d_type);
printf(_("disk: %.*s\n"), (int) sizeof(lp->d_typename), lp->d_typename);
printf(_("label: %.*s\n"), (int) sizeof(lp->d_packname), lp->d_packname);
printf(_("flags:"));
if (lp->d_flags & BSD_D_REMOVABLE)
printf(_(" removable"));
if (lp->d_flags & BSD_D_ECC)
printf(_(" ecc"));
if (lp->d_flags & BSD_D_BADSECT)
printf(_(" badsect"));
puts("");
/* On various machines the fields of *lp are short/int/long */
/* In order to avoid problems, we cast them all to long. */
printf(_("bytes/sector: %ld\n"), (long) lp->d_secsize);
printf(_("sectors/track: %ld\n"), (long) lp->d_nsectors);
printf(_("tracks/cylinder: %ld\n"), (long) lp->d_ntracks);
printf(_("sectors/cylinder: %ld\n"), (long) lp->d_secpercyl);
printf(_("cylinders: %ld\n"), (long) lp->d_ncylinders);
printf(_("rpm: %d\n"), lp->d_rpm);
printf(_("interleave: %d\n"), lp->d_interleave);
printf(_("trackskew: %d\n"), lp->d_trackskew);
printf(_("cylinderskew: %d\n"), lp->d_cylskew);
printf(_("headswitch: %ld\t\t# milliseconds\n"),
(long) lp->d_headswitch);
printf(_("track-to-track seek: %ld\t# milliseconds\n"),
(long) lp->d_trkseek);
printf(_("drivedata: "));
for (i = NDDATA - 1; i >= 0; i--)
if (lp->d_drivedata[i])
break;
if (i < 0)
i = 0;
for (j = 0; j <= i; j++)
printf("%ld ", (long) lp->d_drivedata[j]);
}
printf(_("\n%d partitions:\n"), lp->d_npartitions);
printf(_("# start end size fstype [fsize bsize cpg]\n"));
pp = lp->d_partitions;
for (i = 0; i < lp->d_npartitions; i++, pp++) {
if (pp->p_size) {
if (display_in_cyl_units && lp->d_secpercyl) {
printf(" %c: %8ld%c %8ld%c %8ld%c ",
'a' + i,
(long) pp->p_offset / lp->d_secpercyl + 1,
(pp->p_offset % lp->d_secpercyl) ? '*' : ' ',
(long) (pp->p_offset + pp->p_size + lp->d_secpercyl - 1) / lp->d_secpercyl,
((pp->p_offset + pp->p_size) % lp->d_secpercyl) ? '*' : ' ',
(long) pp->p_size / lp->d_secpercyl,
(pp->p_size % lp->d_secpercyl) ? '*' : ' '
);
} else {
printf(" %c: %8ld %8ld %8ld ",
'a' + i,
(long) pp->p_offset,
(long) pp->p_offset + pp->p_size - 1,
(long) pp->p_size
);
}
if ((unsigned) pp->p_fstype < BSD_FSMAXTYPES)
printf("%8.8s", xbsd_fstypes[pp->p_fstype].name);
else
printf("%8x", pp->p_fstype);
switch (pp->p_fstype) {
case BSD_FS_UNUSED:
printf(" %5ld %5ld %5.5s ",
(long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, "");
break;
case BSD_FS_BSDFFS:
printf(" %5ld %5ld %5d ",
(long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg);
break;
default:
printf("%22.22s", "");
break;
}
puts("");
}
}
}
static void
xbsd_write_disklabel(void)
{
#if defined(__alpha__)
printf(_("Writing disklabel to %s.\n"), disk_device);
xbsd_writelabel(NULL, &xbsd_dlabel);
#else
printf(_("Writing disklabel to %s.\n"),
partname(disk_device, xbsd_part_index + 1, 0));
xbsd_writelabel(xbsd_part, &xbsd_dlabel);
#endif
reread_partition_table(0); /* no exit yet */
}
static int
xbsd_create_disklabel(void)
{
char c;
#if defined(__alpha__)
fprintf(stderr, _("%s contains no disklabel.\n"), disk_device);
#else
fprintf(stderr, _("%s contains no disklabel.\n"),
partname(disk_device, xbsd_part_index + 1, 0));
#endif
while (1) {
c = read_nonempty(_("Do you want to create a disklabel? (y/n) "));
if (c == 'y' || c == 'Y') {
if (xbsd_initlabel(
#if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \
defined(__s390__) || defined(__s390x__)
NULL, &xbsd_dlabel
#else
xbsd_part, &xbsd_dlabel/* not used, xbsd_part_index*/
#endif
) == 1) {
xbsd_print_disklabel(1);
return 1;
} else
return 0;
} else if (c == 'n')
return 0;
}
}
static int
edit_int(int def, char *mesg)
{
mesg = xasprintf("%s (%d): ", mesg, def);
do {
if (!read_line(mesg))
goto ret;
} while (!isdigit(*line_ptr));
def = atoi(line_ptr);
ret:
free(mesg);
return def;
}
static void
xbsd_edit_disklabel(void)
{
struct xbsd_disklabel *d;
d = &xbsd_dlabel;
#if defined(__alpha__) || defined(__ia64__)
d->d_secsize = edit_int(d->d_secsize ,_("bytes/sector"));
d->d_nsectors = edit_int(d->d_nsectors ,_("sectors/track"));
d->d_ntracks = edit_int(d->d_ntracks ,_("tracks/cylinder"));
d->d_ncylinders = edit_int(d->d_ncylinders ,_("cylinders"));
#endif
/* d->d_secpercyl can be != d->d_nsectors * d->d_ntracks */
while (1) {
d->d_secpercyl = edit_int(d->d_nsectors * d->d_ntracks,
_("sectors/cylinder"));
if (d->d_secpercyl <= d->d_nsectors * d->d_ntracks)
break;
printf(_("Must be <= sectors/track * tracks/cylinder (default).\n"));
}
d->d_rpm = edit_int(d->d_rpm ,_("rpm"));
d->d_interleave = edit_int(d->d_interleave,_("interleave"));
d->d_trackskew = edit_int(d->d_trackskew ,_("trackskew"));
d->d_cylskew = edit_int(d->d_cylskew ,_("cylinderskew"));
d->d_headswitch = edit_int(d->d_headswitch,_("headswitch"));
d->d_trkseek = edit_int(d->d_trkseek ,_("track-to-track seek"));
d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
}
static int
xbsd_get_bootstrap(char *path, void *ptr, int size)
{
int fdb;
fdb = open(path, O_RDONLY);
if (fdb < 0) {
perror(path);
return 0;
}
if (read(fdb, ptr, size) < 0) {
perror(path);
close(fdb);
return 0;
}
printf(" ... %s\n", path);
close(fdb);
return 1;
}
static void
sync_disks(void)
{
printf(_("\nSyncing disks.\n"));
sync();
sleep(4); /* What? */
}
static void
xbsd_write_bootstrap(void)
{
char *bootdir = BSD_LINUX_BOOTDIR;
char path[MAXPATHLEN];
char *dkbasename;
struct xbsd_disklabel dl;
char *d, *p, *e;
int sector;
if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI)
dkbasename = "sd";
else
dkbasename = "wd";
snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ",
dkbasename, dkbasename, dkbasename);
if (read_line(path)) {
dkbasename = line_ptr;
}
snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename);
if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize))
return;
/* We need a backup of the disklabel (xbsd_dlabel might have changed). */
d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE];
memmove(&dl, d, sizeof(struct xbsd_disklabel));
/* The disklabel will be overwritten by 0's from bootxx anyway */
memset(d, 0, sizeof(struct xbsd_disklabel));
snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename);
if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize],
(int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize))
return;
e = d + sizeof(struct xbsd_disklabel);
for (p = d; p < e; p++)
if (*p) {
fprintf(stderr, _("Bootstrap overlaps with disk label!\n"));
exit(EXIT_FAILURE);
}
memmove(d, &dl, sizeof(struct xbsd_disklabel));
#if defined(__powerpc__) || defined(__hppa__)
sector = 0;
#elif defined(__alpha__)
sector = 0;
alpha_bootblock_checksum(disklabelbuffer);
#else
sector = get_start_sect(xbsd_part);
#endif
if (lseek(fd, sector * SECTOR_SIZE, SEEK_SET) == -1)
fdisk_fatal(unable_to_seek);
if (BSD_BBSIZE != write(fd, disklabelbuffer, BSD_BBSIZE))
fdisk_fatal(unable_to_write);
#if defined(__alpha__)
printf(_("Bootstrap installed on %s.\n"), disk_device);
#else
printf(_("Bootstrap installed on %s.\n"),
partname(disk_device, xbsd_part_index+1, 0));
#endif
sync_disks();
}
static void
xbsd_change_fstype(void)
{
int i;
i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
xbsd_dlabel.d_partitions[i].p_fstype = read_hex(xbsd_fstypes);
}
static int
xbsd_get_part_index(int max)
{
char prompt[256];
char l;
snprintf(prompt, sizeof(prompt), _("Partition (a-%c): "), 'a' + max - 1);
do
l = tolower(read_nonempty(prompt));
while (l < 'a' || l > 'a' + max - 1);
return l - 'a';
}
static int
xbsd_check_new_partition(int *i)
{
/* room for more? various BSD flavours have different maxima */
if (xbsd_dlabel.d_npartitions == BSD_MAXPARTITIONS) {
int t;
for (t = 0; t < BSD_MAXPARTITIONS; t++)
if (xbsd_dlabel.d_partitions[t].p_size == 0)
break;
if (t == BSD_MAXPARTITIONS) {
fprintf(stderr, _("The maximum number of partitions "
"has been created\n"));
return 0;
}
}
*i = xbsd_get_part_index(BSD_MAXPARTITIONS);
if (*i >= xbsd_dlabel.d_npartitions)
xbsd_dlabel.d_npartitions = (*i) + 1;
if (xbsd_dlabel.d_partitions[*i].p_size != 0) {
fprintf(stderr, _("This partition already exists.\n"));
return 0;
}
return 1;
}
static void
xbsd_list_types(void)
{
list_types(xbsd_fstypes);
}
static uint16_t
xbsd_dkcksum(struct xbsd_disklabel *lp)
{
uint16_t *start, *end;
uint16_t sum = 0;
start = (uint16_t *) lp;
end = (uint16_t *) &lp->d_partitions[lp->d_npartitions];
while (start < end)
sum ^= *start++;
return sum;
}
static int
xbsd_initlabel(struct partition *p, struct xbsd_disklabel *d)
{
struct xbsd_partition *pp;
get_geometry();
memset(d, 0, sizeof(struct xbsd_disklabel));
d->d_magic = BSD_DISKMAGIC;
if (strncmp(disk_device, "/dev/sd", 7) == 0)
d->d_type = BSD_DTYPE_SCSI;
else
d->d_type = BSD_DTYPE_ST506;
#if !defined(__alpha__)
d->d_flags = BSD_D_DOSPART;
#else
d->d_flags = 0;
#endif
d->d_secsize = SECTOR_SIZE; /* bytes/sector */
d->d_nsectors = sectors; /* sectors/track */
d->d_ntracks = heads; /* tracks/cylinder (heads) */
d->d_ncylinders = cylinders;
d->d_secpercyl = sectors * heads; /* sectors/cylinder */
if (d->d_secpercyl == 0)
d->d_secpercyl = 1; /* avoid segfaults */
d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
d->d_rpm = 3600;
d->d_interleave = 1;
d->d_trackskew = 0;
d->d_cylskew = 0;
d->d_headswitch = 0;
d->d_trkseek = 0;
d->d_magic2 = BSD_DISKMAGIC;
d->d_bbsize = BSD_BBSIZE;
d->d_sbsize = BSD_SBSIZE;
#if !defined(__alpha__)
d->d_npartitions = 4;
pp = &d->d_partitions[2]; /* Partition C should be NetBSD partition */
pp->p_offset = get_start_sect(p);
pp->p_size = get_nr_sects(p);
pp->p_fstype = BSD_FS_UNUSED;
pp = &d->d_partitions[3]; /* Partition D should be whole disk */
pp->p_offset = 0;
pp->p_size = d->d_secperunit;
pp->p_fstype = BSD_FS_UNUSED;
#elif defined(__alpha__)
d->d_npartitions = 3;
pp = &d->d_partitions[2]; /* Partition C should be
the whole disk */
pp->p_offset = 0;
pp->p_size = d->d_secperunit;
pp->p_fstype = BSD_FS_UNUSED;
#endif
return 1;
}
/*
* Read a xbsd_disklabel from sector 0 or from the starting sector of p.
* If it has the right magic, return 1.
*/
static int
xbsd_readlabel(struct partition *p, struct xbsd_disklabel *d)
{
int t, sector;
if (!disklabelbuffer)
disklabelbuffer = xmalloc(BSD_BBSIZE);
/* p is used only to get the starting sector */
#if !defined(__alpha__)
sector = (p ? get_start_sect(p) : 0);
#elif defined(__alpha__)
sector = 0;
#endif
if (lseek(fd, sector * SECTOR_SIZE, SEEK_SET) == -1)
fdisk_fatal(unable_to_seek);
if (BSD_BBSIZE != read(fd, disklabelbuffer, BSD_BBSIZE))
fdisk_fatal(unable_to_read);
memmove(d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
sizeof(struct xbsd_disklabel));
if (d->d_magic != BSD_DISKMAGIC || d->d_magic2 != BSD_DISKMAGIC)
return 0;
for (t = d->d_npartitions; t < BSD_MAXPARTITIONS; t++) {
d->d_partitions[t].p_size = 0;
d->d_partitions[t].p_offset = 0;
d->d_partitions[t].p_fstype = BSD_FS_UNUSED;
}
if (d->d_npartitions > BSD_MAXPARTITIONS)
fprintf(stderr, _("Warning: too many partitions "
"(%d, maximum is %d).\n"),
d->d_npartitions, BSD_MAXPARTITIONS);
return 1;
}
static int
xbsd_writelabel(struct partition *p, struct xbsd_disklabel *d)
{
unsigned int sector;
#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
sector = get_start_sect(p) + BSD_LABELSECTOR;
#else
sector = BSD_LABELSECTOR;
#endif
d->d_checksum = 0;
d->d_checksum = xbsd_dkcksum(d);
/* This is necessary if we want to write the bootstrap later,
otherwise we'd write the old disklabel with the bootstrap.
*/
memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
d, sizeof(struct xbsd_disklabel));
#if defined(__alpha__) && BSD_LABELSECTOR == 0
alpha_bootblock_checksum(disklabelbuffer);
if (lseek(fd, 0, SEEK_SET) == -1)
fdisk_fatal(unable_to_seek);
if (BSD_BBSIZE != write(fd, disklabelbuffer, BSD_BBSIZE))
fdisk_fatal(unable_to_write);
#else
if (lseek(fd, sector * SECTOR_SIZE + BSD_LABELOFFSET, SEEK_SET) == -1)
fdisk_fatal(unable_to_seek);
if (sizeof(struct xbsd_disklabel) != write(fd, d, sizeof(struct xbsd_disklabel)))
fdisk_fatal(unable_to_write);
#endif
sync_disks();
return 1;
}
#if !defined(__alpha__)
static int
xbsd_translate_fstype(int linux_type)
{
switch (linux_type) {
case 0x01: /* DOS 12-bit FAT */
case 0x04: /* DOS 16-bit <32M */
case 0x06: /* DOS 16-bit >=32M */
case 0xe1: /* DOS access */
case 0xe3: /* DOS R/O */
case 0xf2: /* DOS secondary */
return BSD_FS_MSDOS;
case 0x07: /* OS/2 HPFS */
return BSD_FS_HPFS;
default:
return BSD_FS_OTHER;
}
}
static void
xbsd_link_part(void)
{
int k, i;
struct partition *p;
k = get_partition(1, partitions);
if (!xbsd_check_new_partition(&i))
return;
p = get_part_table(k);
xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p);
xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p);
xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind);
}
#endif
#if defined(__alpha__)
static void
alpha_bootblock_checksum(char *boot)
{
uint64_t *dp, sum;
int i;
dp = (uint64_t *)boot;
sum = 0;
for (i = 0; i < 63; i++)
sum += dp[i];
dp[63] = sum;
}
#endif /* __alpha__ */
#endif /* OSF_LABEL */
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