/* * 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. */ #if ENABLE_FEATURE_OSF_LABEL #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(__alpha__) \ || defined(__powerpc__) \ || defined(__ia64__) \ || defined(__hppa__) # define BSD_LABELSECTOR 0 # define BSD_LABELOFFSET 64 #else # define BSD_LABELSECTOR 1 # define BSD_LABELOFFSET 0 #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 }; /* * 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 char *const 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 }; /* * 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() */ #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); static int xbsd_readlabel(struct partition *p); static int xbsd_writelabel(struct partition *p); #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 /* Group big globals data and allocate it in one go */ struct bsd_globals { /* We access this through a uint64_t * when checksumming */ /* hopefully xmalloc gives us required alignment */ char disklabelbuffer[BSD_BBSIZE]; struct xbsd_disklabel xbsd_dlabel; }; static struct bsd_globals *bsd_globals_ptr; #define disklabelbuffer (bsd_globals_ptr->disklabelbuffer) #define xbsd_dlabel (bsd_globals_ptr->xbsd_dlabel) /* Code */ #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) == 0) return 0; return 1; } static int bsd_trydev(const char * dev) { if (xbsd_readlabel(NULL) == 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) { printf("Partition %s has invalid starting sector 0\n", partname(disk_device, t+1, 0)); return; } printf("Reading disklabel of %s at sector %u\n", partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR); if (xbsd_readlabel(xbsd_part) == 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) == 0) if (xbsd_create_disklabel() == 0) exit(EXIT_SUCCESS); #endif while (1) { bb_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': if (ENABLE_FEATURE_CLEAN_UP) close_dev_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) { static const int d_masks[] = { BSD_D_REMOVABLE, BSD_D_ECC, BSD_D_BADSECT }; #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 < ARRAY_SIZE(xbsd_dktypenames)-1) printf("type: %s\n", xbsd_dktypenames[lp->d_type]); else printf("type: %u\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: "); print_flags_separated(d_masks, "removable\0""ecc\0""badsect\0", lp->d_flags, " "); bb_putchar('\n'); /* 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: %lu\n", (long) lp->d_secsize); printf("sectors/track: %lu\n", (long) lp->d_nsectors); printf("tracks/cylinder: %lu\n", (long) lp->d_ntracks); printf("sectors/cylinder: %lu\n", (long) lp->d_secpercyl); printf("cylinders: %lu\n", (long) lp->d_ncylinders); printf("rpm: %u\n", lp->d_rpm); printf("interleave: %u\n", lp->d_interleave); printf("trackskew: %u\n", lp->d_trackskew); printf("cylinderskew: %u\n", lp->d_cylskew); printf("headswitch: %lu\t\t# milliseconds\n", (long) lp->d_headswitch); printf("track-to-track seek: %lu\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("%lu ", (long) lp->d_drivedata[j]); } printf("\n%u 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: %8lu%c %8lu%c %8lu%c ", 'a' + i, (unsigned long) pp->p_offset / lp->d_secpercyl + 1, (pp->p_offset % lp->d_secpercyl) ? '*' : ' ', (unsigned 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: %8lu %8lu %8lu ", 'a' + i, (long) pp->p_offset, (long) pp->p_offset + pp->p_size - 1, (long) pp->p_size ); } if ((unsigned) pp->p_fstype < ARRAY_SIZE(xbsd_fstypes)-1) printf("%8.8s", xbsd_fstypes[pp->p_fstype]); else printf("%8x", pp->p_fstype); switch (pp->p_fstype) { case BSD_FS_UNUSED: printf(" %5lu %5lu %5.5s ", (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, ""); break; case BSD_FS_BSDFFS: printf(" %5lu %5lu %5u ", (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg); break; default: printf("%22.22s", ""); break; } bb_putchar('\n'); } } } static void xbsd_write_disklabel(void) { #if defined(__alpha__) printf("Writing disklabel to %s\n", disk_device); xbsd_writelabel(NULL); #else printf("Writing disklabel to %s\n", partname(disk_device, xbsd_part_index + 1, 0)); xbsd_writelabel(xbsd_part); #endif reread_partition_table(0); /* no exit yet */ } static int xbsd_create_disklabel(void) { char c; #if defined(__alpha__) printf("%s contains no disklabel\n", disk_device); #else printf("%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|0x20) == 'y') { if (xbsd_initlabel( #if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \ defined(__s390__) || defined(__s390x__) NULL #else xbsd_part #endif ) == 1) { xbsd_print_disklabel(1); return 1; } return 0; } if ((c|0x20) == 'n') return 0; } } static int edit_int(int def, const char *mesg) { mesg = xasprintf("%s (%u): ", mesg, def); do { if (!read_line(mesg)) goto ret; } while (!isdigit(*line_ptr)); def = atoi(line_ptr); ret: free((char*)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_or_warn(path, O_RDONLY); if (fdb < 0) { return 0; } if (full_read(fdb, ptr, size) < 0) { bb_simple_perror_msg(path); close(fdb); return 0; } printf(" ... %s\n", path); close(fdb); return 1; } static void sync_disks(void) { printf("Syncing disks\n"); sync(); /* sleep(4); What? */ } static void xbsd_write_bootstrap(void) { #ifndef MAXPATHLEN # define MAXPATHLEN 1024 #endif char path[MAXPATHLEN]; const char *bootdir = BSD_LINUX_BOOTDIR; const 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) { printf("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 seek_sector(sector); xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE); #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[sizeof("Partition (a-%c): ") + 16]; 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) { printf("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) { printf("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 = &xbsd_dlabel; struct xbsd_partition *pp; get_geometry(); memset(d, 0, sizeof(struct xbsd_disklabel)); d->d_magic = BSD_DISKMAGIC; if (is_prefixed_with(disk_device, "/dev/sd")) 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 = g_sectors; /* sectors/track */ d->d_ntracks = g_heads; /* tracks/cylinder (heads) */ d->d_ncylinders = g_cylinders; d->d_secpercyl = g_sectors * g_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; #else 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 (!bsd_globals_ptr) bsd_globals_ptr = xzalloc(sizeof(*bsd_globals_ptr)); d = &xbsd_dlabel; /* p is used only to get the starting sector */ #if !defined(__alpha__) sector = (p ? get_start_sect(p) : 0); #else sector = 0; #endif seek_sector(sector); if (BSD_BBSIZE != full_read(dev_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) printf("Warning: too many partitions (%u, maximum is %u)\n", d->d_npartitions, BSD_MAXPARTITIONS); return 1; } static int xbsd_writelabel(struct partition *p) { struct xbsd_disklabel *d = &xbsd_dlabel; unsigned int sector; #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__) sector = get_start_sect(p) + BSD_LABELSECTOR; #else (void)p; /* silence warning */ 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); seek_sector(0); xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE); #else seek_sector(sector); lseek(dev_fd, BSD_LABELOFFSET, SEEK_CUR); xwrite(dev_fd, d, sizeof(*d)); #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, g_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__ */ /* Undefine 'global' tricks */ #undef disklabelbuffer #undef xbsd_dlabel #endif /* OSF_LABEL */