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Diffstat (limited to '')
| -rw-r--r-- | block/partitions/msdos.c | 717 |
1 files changed, 717 insertions, 0 deletions
diff --git a/block/partitions/msdos.c b/block/partitions/msdos.c new file mode 100644 index 000000000..b5d5c229c --- /dev/null +++ b/block/partitions/msdos.c @@ -0,0 +1,717 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * fs/partitions/msdos.c + * + * Code extracted from drivers/block/genhd.c + * Copyright (C) 1991-1998 Linus Torvalds + * + * Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug + * in the early extended-partition checks and added DM partitions + * + * Support for DiskManager v6.0x added by Mark Lord, + * with information provided by OnTrack. This now works for linux fdisk + * and LILO, as well as loadlin and bootln. Note that disks other than + * /dev/hda *must* have a "DOS" type 0x51 partition in the first slot (hda1). + * + * More flexible handling of extended partitions - aeb, 950831 + * + * Check partition table on IDE disks for common CHS translations + * + * Re-organised Feb 1998 Russell King + * + * BSD disklabel support by Yossi Gottlieb <yogo@math.tau.ac.il> + * updated by Marc Espie <Marc.Espie@openbsd.org> + * + * Unixware slices support by Andrzej Krzysztofowicz <ankry@mif.pg.gda.pl> + * and Krzysztof G. Baranowski <kgb@knm.org.pl> + */ +#include <linux/msdos_fs.h> +#include <linux/msdos_partition.h> + +#include "check.h" +#include "efi.h" + +/* + * Many architectures don't like unaligned accesses, while + * the nr_sects and start_sect partition table entries are + * at a 2 (mod 4) address. + */ +#include <asm/unaligned.h> + +static inline sector_t nr_sects(struct msdos_partition *p) +{ + return (sector_t)get_unaligned_le32(&p->nr_sects); +} + +static inline sector_t start_sect(struct msdos_partition *p) +{ + return (sector_t)get_unaligned_le32(&p->start_sect); +} + +static inline int is_extended_partition(struct msdos_partition *p) +{ + return (p->sys_ind == DOS_EXTENDED_PARTITION || + p->sys_ind == WIN98_EXTENDED_PARTITION || + p->sys_ind == LINUX_EXTENDED_PARTITION); +} + +#define MSDOS_LABEL_MAGIC1 0x55 +#define MSDOS_LABEL_MAGIC2 0xAA + +static inline int +msdos_magic_present(unsigned char *p) +{ + return (p[0] == MSDOS_LABEL_MAGIC1 && p[1] == MSDOS_LABEL_MAGIC2); +} + +/* Value is EBCDIC 'IBMA' */ +#define AIX_LABEL_MAGIC1 0xC9 +#define AIX_LABEL_MAGIC2 0xC2 +#define AIX_LABEL_MAGIC3 0xD4 +#define AIX_LABEL_MAGIC4 0xC1 +static int aix_magic_present(struct parsed_partitions *state, unsigned char *p) +{ + struct msdos_partition *pt = (struct msdos_partition *) (p + 0x1be); + Sector sect; + unsigned char *d; + int slot, ret = 0; + + if (!(p[0] == AIX_LABEL_MAGIC1 && + p[1] == AIX_LABEL_MAGIC2 && + p[2] == AIX_LABEL_MAGIC3 && + p[3] == AIX_LABEL_MAGIC4)) + return 0; + + /* + * Assume the partition table is valid if Linux partitions exists. + * Note that old Solaris/x86 partitions use the same indicator as + * Linux swap partitions, so we consider that a Linux partition as + * well. + */ + for (slot = 1; slot <= 4; slot++, pt++) { + if (pt->sys_ind == SOLARIS_X86_PARTITION || + pt->sys_ind == LINUX_RAID_PARTITION || + pt->sys_ind == LINUX_DATA_PARTITION || + pt->sys_ind == LINUX_LVM_PARTITION || + is_extended_partition(pt)) + return 0; + } + d = read_part_sector(state, 7, §); + if (d) { + if (d[0] == '_' && d[1] == 'L' && d[2] == 'V' && d[3] == 'M') + ret = 1; + put_dev_sector(sect); + } + return ret; +} + +static void set_info(struct parsed_partitions *state, int slot, + u32 disksig) +{ + struct partition_meta_info *info = &state->parts[slot].info; + + snprintf(info->uuid, sizeof(info->uuid), "%08x-%02x", disksig, + slot); + info->volname[0] = 0; + state->parts[slot].has_info = true; +} + +/* + * Create devices for each logical partition in an extended partition. + * The logical partitions form a linked list, with each entry being + * a partition table with two entries. The first entry + * is the real data partition (with a start relative to the partition + * table start). The second is a pointer to the next logical partition + * (with a start relative to the entire extended partition). + * We do not create a Linux partition for the partition tables, but + * only for the actual data partitions. + */ + +static void parse_extended(struct parsed_partitions *state, + sector_t first_sector, sector_t first_size, + u32 disksig) +{ + struct msdos_partition *p; + Sector sect; + unsigned char *data; + sector_t this_sector, this_size; + sector_t sector_size; + int loopct = 0; /* number of links followed + without finding a data partition */ + int i; + + sector_size = queue_logical_block_size(state->disk->queue) / 512; + this_sector = first_sector; + this_size = first_size; + + while (1) { + if (++loopct > 100) + return; + if (state->next == state->limit) + return; + data = read_part_sector(state, this_sector, §); + if (!data) + return; + + if (!msdos_magic_present(data + 510)) + goto done; + + p = (struct msdos_partition *) (data + 0x1be); + + /* + * Usually, the first entry is the real data partition, + * the 2nd entry is the next extended partition, or empty, + * and the 3rd and 4th entries are unused. + * However, DRDOS sometimes has the extended partition as + * the first entry (when the data partition is empty), + * and OS/2 seems to use all four entries. + */ + + /* + * First process the data partition(s) + */ + for (i = 0; i < 4; i++, p++) { + sector_t offs, size, next; + + if (!nr_sects(p) || is_extended_partition(p)) + continue; + + /* Check the 3rd and 4th entries - + these sometimes contain random garbage */ + offs = start_sect(p)*sector_size; + size = nr_sects(p)*sector_size; + next = this_sector + offs; + if (i >= 2) { + if (offs + size > this_size) + continue; + if (next < first_sector) + continue; + if (next + size > first_sector + first_size) + continue; + } + + put_partition(state, state->next, next, size); + set_info(state, state->next, disksig); + if (p->sys_ind == LINUX_RAID_PARTITION) + state->parts[state->next].flags = ADDPART_FLAG_RAID; + loopct = 0; + if (++state->next == state->limit) + goto done; + } + /* + * Next, process the (first) extended partition, if present. + * (So far, there seems to be no reason to make + * parse_extended() recursive and allow a tree + * of extended partitions.) + * It should be a link to the next logical partition. + */ + p -= 4; + for (i = 0; i < 4; i++, p++) + if (nr_sects(p) && is_extended_partition(p)) + break; + if (i == 4) + goto done; /* nothing left to do */ + + this_sector = first_sector + start_sect(p) * sector_size; + this_size = nr_sects(p) * sector_size; + put_dev_sector(sect); + } +done: + put_dev_sector(sect); +} + +#define SOLARIS_X86_NUMSLICE 16 +#define SOLARIS_X86_VTOC_SANE (0x600DDEEEUL) + +struct solaris_x86_slice { + __le16 s_tag; /* ID tag of partition */ + __le16 s_flag; /* permission flags */ + __le32 s_start; /* start sector no of partition */ + __le32 s_size; /* # of blocks in partition */ +}; + +struct solaris_x86_vtoc { + unsigned int v_bootinfo[3]; /* info needed by mboot */ + __le32 v_sanity; /* to verify vtoc sanity */ + __le32 v_version; /* layout version */ + char v_volume[8]; /* volume name */ + __le16 v_sectorsz; /* sector size in bytes */ + __le16 v_nparts; /* number of partitions */ + unsigned int v_reserved[10]; /* free space */ + struct solaris_x86_slice + v_slice[SOLARIS_X86_NUMSLICE]; /* slice headers */ + unsigned int timestamp[SOLARIS_X86_NUMSLICE]; /* timestamp */ + char v_asciilabel[128]; /* for compatibility */ +}; + +/* james@bpgc.com: Solaris has a nasty indicator: 0x82 which also + indicates linux swap. Be careful before believing this is Solaris. */ + +static void parse_solaris_x86(struct parsed_partitions *state, + sector_t offset, sector_t size, int origin) +{ +#ifdef CONFIG_SOLARIS_X86_PARTITION + Sector sect; + struct solaris_x86_vtoc *v; + int i; + short max_nparts; + + v = read_part_sector(state, offset + 1, §); + if (!v) + return; + if (le32_to_cpu(v->v_sanity) != SOLARIS_X86_VTOC_SANE) { + put_dev_sector(sect); + return; + } + { + char tmp[1 + BDEVNAME_SIZE + 10 + 11 + 1]; + + snprintf(tmp, sizeof(tmp), " %s%d: <solaris:", state->name, origin); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + } + if (le32_to_cpu(v->v_version) != 1) { + char tmp[64]; + + snprintf(tmp, sizeof(tmp), " cannot handle version %d vtoc>\n", + le32_to_cpu(v->v_version)); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + put_dev_sector(sect); + return; + } + /* Ensure we can handle previous case of VTOC with 8 entries gracefully */ + max_nparts = le16_to_cpu(v->v_nparts) > 8 ? SOLARIS_X86_NUMSLICE : 8; + for (i = 0; i < max_nparts && state->next < state->limit; i++) { + struct solaris_x86_slice *s = &v->v_slice[i]; + char tmp[3 + 10 + 1 + 1]; + + if (s->s_size == 0) + continue; + snprintf(tmp, sizeof(tmp), " [s%d]", i); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + /* solaris partitions are relative to current MS-DOS + * one; must add the offset of the current partition */ + put_partition(state, state->next++, + le32_to_cpu(s->s_start)+offset, + le32_to_cpu(s->s_size)); + } + put_dev_sector(sect); + strlcat(state->pp_buf, " >\n", PAGE_SIZE); +#endif +} + +/* check against BSD src/sys/sys/disklabel.h for consistency */ +#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ +#define BSD_MAXPARTITIONS 16 +#define OPENBSD_MAXPARTITIONS 16 +#define BSD_FS_UNUSED 0 /* disklabel unused partition entry ID */ +struct bsd_disklabel { + __le32 d_magic; /* the magic number */ + __s16 d_type; /* drive type */ + __s16 d_subtype; /* controller/d_type specific */ + char d_typename[16]; /* type name, e.g. "eagle" */ + char d_packname[16]; /* pack identifier */ + __u32 d_secsize; /* # of bytes per sector */ + __u32 d_nsectors; /* # of data sectors per track */ + __u32 d_ntracks; /* # of tracks per cylinder */ + __u32 d_ncylinders; /* # of data cylinders per unit */ + __u32 d_secpercyl; /* # of data sectors per cylinder */ + __u32 d_secperunit; /* # of data sectors per unit */ + __u16 d_sparespertrack; /* # of spare sectors per track */ + __u16 d_sparespercyl; /* # of spare sectors per cylinder */ + __u32 d_acylinders; /* # of alt. cylinders per unit */ + __u16 d_rpm; /* rotational speed */ + __u16 d_interleave; /* hardware sector interleave */ + __u16 d_trackskew; /* sector 0 skew, per track */ + __u16 d_cylskew; /* sector 0 skew, per cylinder */ + __u32 d_headswitch; /* head switch time, usec */ + __u32 d_trkseek; /* track-to-track seek, usec */ + __u32 d_flags; /* generic flags */ +#define NDDATA 5 + __u32 d_drivedata[NDDATA]; /* drive-type specific information */ +#define NSPARE 5 + __u32 d_spare[NSPARE]; /* reserved for future use */ + __le32 d_magic2; /* the magic number (again) */ + __le16 d_checksum; /* xor of data incl. partitions */ + + /* filesystem and partition information: */ + __le16 d_npartitions; /* number of partitions in following */ + __le32 d_bbsize; /* size of boot area at sn0, bytes */ + __le32 d_sbsize; /* max size of fs superblock, bytes */ + struct bsd_partition { /* the partition table */ + __le32 p_size; /* number of sectors in partition */ + __le32 p_offset; /* starting sector */ + __le32 p_fsize; /* filesystem basic fragment size */ + __u8 p_fstype; /* filesystem type, see below */ + __u8 p_frag; /* filesystem fragments per block */ + __le16 p_cpg; /* filesystem cylinders per group */ + } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */ +}; + +#if defined(CONFIG_BSD_DISKLABEL) +/* + * Create devices for BSD partitions listed in a disklabel, under a + * dos-like partition. See parse_extended() for more information. + */ +static void parse_bsd(struct parsed_partitions *state, + sector_t offset, sector_t size, int origin, char *flavour, + int max_partitions) +{ + Sector sect; + struct bsd_disklabel *l; + struct bsd_partition *p; + char tmp[64]; + + l = read_part_sector(state, offset + 1, §); + if (!l) + return; + if (le32_to_cpu(l->d_magic) != BSD_DISKMAGIC) { + put_dev_sector(sect); + return; + } + + snprintf(tmp, sizeof(tmp), " %s%d: <%s:", state->name, origin, flavour); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + + if (le16_to_cpu(l->d_npartitions) < max_partitions) + max_partitions = le16_to_cpu(l->d_npartitions); + for (p = l->d_partitions; p - l->d_partitions < max_partitions; p++) { + sector_t bsd_start, bsd_size; + + if (state->next == state->limit) + break; + if (p->p_fstype == BSD_FS_UNUSED) + continue; + bsd_start = le32_to_cpu(p->p_offset); + bsd_size = le32_to_cpu(p->p_size); + /* FreeBSD has relative offset if C partition offset is zero */ + if (memcmp(flavour, "bsd\0", 4) == 0 && + le32_to_cpu(l->d_partitions[2].p_offset) == 0) + bsd_start += offset; + if (offset == bsd_start && size == bsd_size) + /* full parent partition, we have it already */ + continue; + if (offset > bsd_start || offset+size < bsd_start+bsd_size) { + strlcat(state->pp_buf, "bad subpartition - ignored\n", PAGE_SIZE); + continue; + } + put_partition(state, state->next++, bsd_start, bsd_size); + } + put_dev_sector(sect); + if (le16_to_cpu(l->d_npartitions) > max_partitions) { + snprintf(tmp, sizeof(tmp), " (ignored %d more)", + le16_to_cpu(l->d_npartitions) - max_partitions); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + } + strlcat(state->pp_buf, " >\n", PAGE_SIZE); +} +#endif + +static void parse_freebsd(struct parsed_partitions *state, + sector_t offset, sector_t size, int origin) +{ +#ifdef CONFIG_BSD_DISKLABEL + parse_bsd(state, offset, size, origin, "bsd", BSD_MAXPARTITIONS); +#endif +} + +static void parse_netbsd(struct parsed_partitions *state, + sector_t offset, sector_t size, int origin) +{ +#ifdef CONFIG_BSD_DISKLABEL + parse_bsd(state, offset, size, origin, "netbsd", BSD_MAXPARTITIONS); +#endif +} + +static void parse_openbsd(struct parsed_partitions *state, + sector_t offset, sector_t size, int origin) +{ +#ifdef CONFIG_BSD_DISKLABEL + parse_bsd(state, offset, size, origin, "openbsd", + OPENBSD_MAXPARTITIONS); +#endif +} + +#define UNIXWARE_DISKMAGIC (0xCA5E600DUL) /* The disk magic number */ +#define UNIXWARE_DISKMAGIC2 (0x600DDEEEUL) /* The slice table magic nr */ +#define UNIXWARE_NUMSLICE 16 +#define UNIXWARE_FS_UNUSED 0 /* Unused slice entry ID */ + +struct unixware_slice { + __le16 s_label; /* label */ + __le16 s_flags; /* permission flags */ + __le32 start_sect; /* starting sector */ + __le32 nr_sects; /* number of sectors in slice */ +}; + +struct unixware_disklabel { + __le32 d_type; /* drive type */ + __le32 d_magic; /* the magic number */ + __le32 d_version; /* version number */ + char d_serial[12]; /* serial number of the device */ + __le32 d_ncylinders; /* # of data cylinders per device */ + __le32 d_ntracks; /* # of tracks per cylinder */ + __le32 d_nsectors; /* # of data sectors per track */ + __le32 d_secsize; /* # of bytes per sector */ + __le32 d_part_start; /* # of first sector of this partition*/ + __le32 d_unknown1[12]; /* ? */ + __le32 d_alt_tbl; /* byte offset of alternate table */ + __le32 d_alt_len; /* byte length of alternate table */ + __le32 d_phys_cyl; /* # of physical cylinders per device */ + __le32 d_phys_trk; /* # of physical tracks per cylinder */ + __le32 d_phys_sec; /* # of physical sectors per track */ + __le32 d_phys_bytes; /* # of physical bytes per sector */ + __le32 d_unknown2; /* ? */ + __le32 d_unknown3; /* ? */ + __le32 d_pad[8]; /* pad */ + + struct unixware_vtoc { + __le32 v_magic; /* the magic number */ + __le32 v_version; /* version number */ + char v_name[8]; /* volume name */ + __le16 v_nslices; /* # of slices */ + __le16 v_unknown1; /* ? */ + __le32 v_reserved[10]; /* reserved */ + struct unixware_slice + v_slice[UNIXWARE_NUMSLICE]; /* slice headers */ + } vtoc; +}; /* 408 */ + +/* + * Create devices for Unixware partitions listed in a disklabel, under a + * dos-like partition. See parse_extended() for more information. + */ +static void parse_unixware(struct parsed_partitions *state, + sector_t offset, sector_t size, int origin) +{ +#ifdef CONFIG_UNIXWARE_DISKLABEL + Sector sect; + struct unixware_disklabel *l; + struct unixware_slice *p; + + l = read_part_sector(state, offset + 29, §); + if (!l) + return; + if (le32_to_cpu(l->d_magic) != UNIXWARE_DISKMAGIC || + le32_to_cpu(l->vtoc.v_magic) != UNIXWARE_DISKMAGIC2) { + put_dev_sector(sect); + return; + } + { + char tmp[1 + BDEVNAME_SIZE + 10 + 12 + 1]; + + snprintf(tmp, sizeof(tmp), " %s%d: <unixware:", state->name, origin); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + } + p = &l->vtoc.v_slice[1]; + /* I omit the 0th slice as it is the same as whole disk. */ + while (p - &l->vtoc.v_slice[0] < UNIXWARE_NUMSLICE) { + if (state->next == state->limit) + break; + + if (p->s_label != UNIXWARE_FS_UNUSED) + put_partition(state, state->next++, + le32_to_cpu(p->start_sect), + le32_to_cpu(p->nr_sects)); + p++; + } + put_dev_sector(sect); + strlcat(state->pp_buf, " >\n", PAGE_SIZE); +#endif +} + +#define MINIX_NR_SUBPARTITIONS 4 + +/* + * Minix 2.0.0/2.0.2 subpartition support. + * Anand Krishnamurthy <anandk@wiproge.med.ge.com> + * Rajeev V. Pillai <rajeevvp@yahoo.com> + */ +static void parse_minix(struct parsed_partitions *state, + sector_t offset, sector_t size, int origin) +{ +#ifdef CONFIG_MINIX_SUBPARTITION + Sector sect; + unsigned char *data; + struct msdos_partition *p; + int i; + + data = read_part_sector(state, offset, §); + if (!data) + return; + + p = (struct msdos_partition *)(data + 0x1be); + + /* The first sector of a Minix partition can have either + * a secondary MBR describing its subpartitions, or + * the normal boot sector. */ + if (msdos_magic_present(data + 510) && + p->sys_ind == MINIX_PARTITION) { /* subpartition table present */ + char tmp[1 + BDEVNAME_SIZE + 10 + 9 + 1]; + + snprintf(tmp, sizeof(tmp), " %s%d: <minix:", state->name, origin); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + for (i = 0; i < MINIX_NR_SUBPARTITIONS; i++, p++) { + if (state->next == state->limit) + break; + /* add each partition in use */ + if (p->sys_ind == MINIX_PARTITION) + put_partition(state, state->next++, + start_sect(p), nr_sects(p)); + } + strlcat(state->pp_buf, " >\n", PAGE_SIZE); + } + put_dev_sector(sect); +#endif /* CONFIG_MINIX_SUBPARTITION */ +} + +static struct { + unsigned char id; + void (*parse)(struct parsed_partitions *, sector_t, sector_t, int); +} subtypes[] = { + {FREEBSD_PARTITION, parse_freebsd}, + {NETBSD_PARTITION, parse_netbsd}, + {OPENBSD_PARTITION, parse_openbsd}, + {MINIX_PARTITION, parse_minix}, + {UNIXWARE_PARTITION, parse_unixware}, + {SOLARIS_X86_PARTITION, parse_solaris_x86}, + {NEW_SOLARIS_X86_PARTITION, parse_solaris_x86}, + {0, NULL}, +}; + +int msdos_partition(struct parsed_partitions *state) +{ + sector_t sector_size; + Sector sect; + unsigned char *data; + struct msdos_partition *p; + struct fat_boot_sector *fb; + int slot; + u32 disksig; + + sector_size = queue_logical_block_size(state->disk->queue) / 512; + data = read_part_sector(state, 0, §); + if (!data) + return -1; + + /* + * Note order! (some AIX disks, e.g. unbootable kind, + * have no MSDOS 55aa) + */ + if (aix_magic_present(state, data)) { + put_dev_sector(sect); +#ifdef CONFIG_AIX_PARTITION + return aix_partition(state); +#else + strlcat(state->pp_buf, " [AIX]", PAGE_SIZE); + return 0; +#endif + } + + if (!msdos_magic_present(data + 510)) { + put_dev_sector(sect); + return 0; + } + + /* + * Now that the 55aa signature is present, this is probably + * either the boot sector of a FAT filesystem or a DOS-type + * partition table. Reject this in case the boot indicator + * is not 0 or 0x80. + */ + p = (struct msdos_partition *) (data + 0x1be); + for (slot = 1; slot <= 4; slot++, p++) { + if (p->boot_ind != 0 && p->boot_ind != 0x80) { + /* + * Even without a valid boot indicator value + * its still possible this is valid FAT filesystem + * without a partition table. + */ + fb = (struct fat_boot_sector *) data; + if (slot == 1 && fb->reserved && fb->fats + && fat_valid_media(fb->media)) { + strlcat(state->pp_buf, "\n", PAGE_SIZE); + put_dev_sector(sect); + return 1; + } else { + put_dev_sector(sect); + return 0; + } + } + } + +#ifdef CONFIG_EFI_PARTITION + p = (struct msdos_partition *) (data + 0x1be); + for (slot = 1 ; slot <= 4 ; slot++, p++) { + /* If this is an EFI GPT disk, msdos should ignore it. */ + if (p->sys_ind == EFI_PMBR_OSTYPE_EFI_GPT) { + put_dev_sector(sect); + return 0; + } + } +#endif + p = (struct msdos_partition *) (data + 0x1be); + + disksig = le32_to_cpup((__le32 *)(data + 0x1b8)); + + /* + * Look for partitions in two passes: + * First find the primary and DOS-type extended partitions. + * On the second pass look inside *BSD, Unixware and Solaris partitions. + */ + + state->next = 5; + for (slot = 1 ; slot <= 4 ; slot++, p++) { + sector_t start = start_sect(p)*sector_size; + sector_t size = nr_sects(p)*sector_size; + + if (!size) + continue; + if (is_extended_partition(p)) { + /* + * prevent someone doing mkfs or mkswap on an + * extended partition, but leave room for LILO + * FIXME: this uses one logical sector for > 512b + * sector, although it may not be enough/proper. + */ + sector_t n = 2; + + n = min(size, max(sector_size, n)); + put_partition(state, slot, start, n); + + strlcat(state->pp_buf, " <", PAGE_SIZE); + parse_extended(state, start, size, disksig); + strlcat(state->pp_buf, " >", PAGE_SIZE); + continue; + } + put_partition(state, slot, start, size); + set_info(state, slot, disksig); + if (p->sys_ind == LINUX_RAID_PARTITION) + state->parts[slot].flags = ADDPART_FLAG_RAID; + if (p->sys_ind == DM6_PARTITION) + strlcat(state->pp_buf, "[DM]", PAGE_SIZE); + if (p->sys_ind == EZD_PARTITION) + strlcat(state->pp_buf, "[EZD]", PAGE_SIZE); + } + + strlcat(state->pp_buf, "\n", PAGE_SIZE); + + /* second pass - output for each on a separate line */ + p = (struct msdos_partition *) (0x1be + data); + for (slot = 1 ; slot <= 4 ; slot++, p++) { + unsigned char id = p->sys_ind; + int n; + + if (!nr_sects(p)) + continue; + + for (n = 0; subtypes[n].parse && id != subtypes[n].id; n++) + ; + + if (!subtypes[n].parse) + continue; + subtypes[n].parse(state, start_sect(p) * sector_size, + nr_sects(p) * sector_size, slot); + } + put_dev_sector(sect); + return 1; +} |