diff options
Diffstat (limited to 'libblkid/sun.c')
| -rw-r--r-- | libblkid/sun.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/libblkid/sun.c b/libblkid/sun.c deleted file mode 100644 index f151f46ae..000000000 --- a/libblkid/sun.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * sun (solaris-sparc) partition parsing code - * - * Copyright (C) 2009 Karel Zak <kzak@redhat.com> - * - * This file may be redistributed under the terms of the - * GNU Lesser General Public License. - */ -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <stdint.h> -#include <stddef.h> - -#include "partitions.h" - -/* Supported VTOC setting */ -#define SUN_VTOC_SANITY 0x600DDEEE /* magic number */ -#define SUN_VTOC_VERSION 1 - -#define SUN_MAXPARTITIONS 8 - -/* Partition IDs */ -#define SUN_TAG_WHOLEDISK 0x05 - -struct sun_disklabel { - unsigned char info[128]; /* Informative text string */ - - struct sun_vtoc { - uint32_t version; /* version */ - char volume[8]; /* volume name */ - uint16_t nparts; /* num of partitions */ - - struct sun_info { /* partition information */ - uint16_t id; /* tag */ - uint16_t flags; - } __attribute__ ((packed)) infos[8]; - - uint16_t padding; /* padding */ - uint32_t bootinfo[3]; /* info needed by mboot */ - uint32_t sanity; /* magic number */ - uint32_t reserved[10]; /* padding */ - uint32_t timestamp[8]; /* partition timestamp */ - } __attribute__ ((packed)) vtoc; - - uint32_t write_reinstruct; /* sectors to skip, writes */ - uint32_t read_reinstruct; /* sectors to skip, reads */ - unsigned char spare[148]; /* padding */ - uint16_t rspeed; /* disk rotational speed */ - uint16_t pcylcount; /* physical cylinder count */ - uint16_t sparecyl; /* extra sects per cylinder */ - uint16_t obs1; - uint16_t obs2; - uint16_t ilfact; /* interleave factor */ - uint16_t ncyl; /* data cylinder count */ - uint16_t nacyl; /* alt. cylinder count */ - uint16_t ntrks; /* tracks per cylinder <---- */ - uint16_t nsect; /* sectors per track <---- */ - uint16_t obs3; - uint16_t obs4; - - struct sun_partition { /* partitions */ - uint32_t start_cylinder; - uint32_t num_sectors; - } __attribute__ ((packed)) partitions[8]; - - uint16_t magic; /* magic number */ - uint16_t csum; /* label xor'd checksum */ -} __attribute__ ((packed)); - - -uint16_t count_checksum(struct sun_disklabel *label) -{ - uint16_t *ptr = ((uint16_t *) (label + 1)) - 1; - uint16_t sum; - - for (sum = 0; ptr >= ((uint16_t *) label);) - sum ^= *ptr--; - - return sum; -} - -static int probe_sun_pt(blkid_probe pr, - const struct blkid_idmag *mag __attribute__((__unused__))) -{ - struct sun_disklabel *l; - struct sun_partition *p; - blkid_parttable tab = NULL; - blkid_partlist ls; - uint16_t nparts; - blkid_loff_t spc; - int i, use_vtoc; - - l = (struct sun_disklabel *) blkid_probe_get_sector(pr, 0); - if (!l) - goto nothing; - - if (count_checksum(l)) { - DBG(DEBUG_LOWPROBE, printf( - "detected corrupted sun disk label -- ignore\n")); - goto nothing; - } - - if (blkid_partitions_need_typeonly(pr)) - /* caller does not ask for details about partitions */ - return 0; - - ls = blkid_probe_get_partlist(pr); - if (!ls) - goto err; - - tab = blkid_partlist_new_parttable(ls, "sun", 0); - if (!tab) - goto err; - - /* sectors per cylinder (partition offset is in cylinders...) */ - spc = be16_to_cpu(l->ntrks) * be16_to_cpu(l->nsect); - - DBG(DEBUG_LOWPROBE, - printf("Sun VTOC sanity=%u version=%u nparts=%u\n", - be32_to_cpu(l->vtoc.sanity), - be32_to_cpu(l->vtoc.version), - be16_to_cpu(l->vtoc.nparts))); - - /* Check to see if we can use the VTOC table */ - use_vtoc = ((be32_to_cpu(l->vtoc.sanity) == SUN_VTOC_SANITY) && - (be32_to_cpu(l->vtoc.version) == SUN_VTOC_VERSION) && - (be16_to_cpu(l->vtoc.nparts) <= SUN_MAXPARTITIONS)); - - /* Use 8 partition entries if not specified in validated VTOC */ - nparts = use_vtoc ? be16_to_cpu(l->vtoc.nparts) : SUN_MAXPARTITIONS; - - /* - * So that old Linux-Sun partitions continue to work, - * alow the VTOC to be used under the additional condition ... - */ - use_vtoc = use_vtoc || !(l->vtoc.sanity || l->vtoc.version || l->vtoc.nparts); - - for (i = 0, p = l->partitions; i < nparts; i++, p++) { - - blkid_loff_t start, size; - uint16_t type = 0, flags = 0; - blkid_partition par; - - start = be32_to_cpu(p->start_cylinder) * spc; - size = be32_to_cpu(p->num_sectors); - if (use_vtoc) { - type = be16_to_cpu(l->vtoc.infos[i].id); - flags = be16_to_cpu(l->vtoc.infos[i].flags); - } - - if (type == SUN_TAG_WHOLEDISK || !size) { - blkid_partlist_increment_partno(ls); - continue; - } - par = blkid_partlist_add_partition(ls, tab, start, size); - if (!par) - goto err; - - if (type) - blkid_partition_set_type(par, type); - if (flags) - blkid_partition_set_flags(par, flags); - } - return 0; - -nothing: - return 1; -err: - return -1; -} - - -const struct blkid_idinfo sun_pt_idinfo = -{ - .name = "sun", - .probefunc = probe_sun_pt, - .magics = - { - { - .magic = "\xDA\xBE", /* big-endian magic string */ - .len = 2, - .sboff = offsetof(struct sun_disklabel, magic) - }, - { NULL } - } -}; - |