luks * - * -
hpfs * - - -
romfs *
+squashfs *
minix *
highpoint *
isw_raid *
promise_raid *
silicon_raid *
via_raid *
-mac partitons *
-msdos partitions *
-The following rule will create a symlink named with the label string:
- KERNEL=="[hs]d*", PROGRAM=="/sbin/vol_id -l %N", SYMLINK+="%c"
-
If no label is found vol_id exits with nonzero and the rule will be
ignored.
To give it a try, you may call it on the commandline:
- [root@pim udev.kay]# extras/volume_id/vol_id /dev/hda3
- T:ext3
- L:Music Store
- N:Music_Store
- U:d2da42b5-bbd9-44eb-a72c-cc4542fcb71e
+ $ extras/volume_id/vol_id --export /dev/sda6
+ ID_FS_USAGE=filesystem
+ ID_FS_TYPE=ext3
+ ID_FS_VERSION=1.0
+ ID_FS_UUID=3e999973-00c9-4917-9442-b7633bd95b9e
+ ID_FS_LABEL=devel
+ ID_FS_LABEL_SAFE=devel
- [root@pim udev.kay]# extras/volume_id/vol_id -l /dev/hda3
- Music_Store
+ $ extras/volume_id/vol_id -l /dev/sda6
+ devel
- [root@pim udev.kay]# extras/volume_id/vol_id -t /dev/hda3
- swap
+ $ extras/volume_id/vol_id -t /dev/sda6
+ ext3
Any comment/questions/concerns to me:
-Kay Sievers <kay.sievers@vrfy.org>
+ Kay Sievers <kay.sievers@vrfy.org>
linux_raid.o \
linux_swap.o \
lvm.o \
- mac.o \
- msdos.o \
ntfs.o \
reiserfs.o \
udf.o \
+++ /dev/null
-/*
- * volume_id - reads filesystem label and uuid
- *
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation version 2 of the License.
- */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE 1
-#endif
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-
-#include "volume_id.h"
-#include "logging.h"
-#include "util.h"
-
-struct mac_driver_desc {
- uint8_t signature[2];
- uint16_t block_size;
- uint32_t block_count;
-} PACKED;
-
-struct mac_partition {
- uint8_t signature[2];
- uint16_t res1;
- uint32_t map_count;
- uint32_t start_block;
- uint32_t block_count;
- uint8_t name[32];
- uint8_t type[32];
-} PACKED;
-
-int volume_id_probe_mac_partition_map(struct volume_id *id, uint64_t off)
-{
- const uint8_t *buf;
- struct mac_driver_desc *driver;
- struct mac_partition *part;
-
- dbg("probing at offset 0x%llx", (unsigned long long) off);
-
- buf = volume_id_get_buffer(id, off, 0x200);
- if (buf == NULL)
- return -1;
-
- part = (struct mac_partition *) buf;
- if ((memcmp(part->signature, "PM", 2) == 0) &&
- (memcmp(part->type, "Apple_partition_map", 19) == 0)) {
- /* linux creates an own subdevice for the map
- * just return the type if the drive header is missing */
- volume_id_set_usage(id, VOLUME_ID_PARTITIONTABLE);
- id->type = "mac_partition_map";
- return 0;
- }
-
- driver = (struct mac_driver_desc *) buf;
- if (memcmp(driver->signature, "ER", 2) == 0) {
- /* we are on a main device, like a CD
- * just try to probe the first partition from the map */
- unsigned int bsize = be16_to_cpu(driver->block_size);
- int part_count;
- int i;
-
- /* get first entry of partition table */
- buf = volume_id_get_buffer(id, off + bsize, 0x200);
- if (buf == NULL)
- return -1;
-
- part = (struct mac_partition *) buf;
- if (memcmp(part->signature, "PM", 2) != 0)
- return -1;
-
- part_count = be32_to_cpu(part->map_count);
- dbg("expecting %d partition entries", part_count);
- if (part_count < 1 || part_count > 256)
- return -1;
-
- if (id->partitions != NULL)
- free(id->partitions);
- id->partitions = malloc(part_count * sizeof(struct volume_id_partition));
- if (id->partitions == NULL)
- return -1;
- memset(id->partitions, 0x00, part_count * sizeof(struct volume_id_partition));
-
- id->partition_count = part_count;
-
- for (i = 0; i < part_count; i++) {
- uint64_t poff;
- uint64_t plen;
-
- buf = volume_id_get_buffer(id, off + ((i+1) * bsize), 0x200);
- if (buf == NULL)
- return -1;
-
- part = (struct mac_partition *) buf;
- if (memcmp(part->signature, "PM", 2) != 0)
- return -1;
-
- poff = be32_to_cpu(part->start_block) * bsize;
- plen = be32_to_cpu(part->block_count) * bsize;
- dbg("found '%s' partition entry at 0x%llx, len 0x%llx",
- part->type, (unsigned long long) poff, (unsigned long long) plen);
-
- id->partitions[i].off = poff;
- id->partitions[i].len = plen;
-
- if (memcmp(part->type, "Apple_Free", 10) == 0) {
- volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_UNUSED);
- } else if (memcmp(part->type, "Apple_partition_map", 19) == 0) {
- volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_PARTITIONTABLE);
- } else {
- volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_UNPROBED);
- }
- }
- volume_id_set_usage(id, VOLUME_ID_PARTITIONTABLE);
- id->type = "mac_partition_map";
- return 0;
- }
-
- return -1;
-}
+++ /dev/null
-/*
- * volume_id - reads filesystem label and uuid
- *
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation version 2 of the License.
- */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE 1
-#endif
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-
-#include "volume_id.h"
-#include "logging.h"
-#include "util.h"
-
-struct msdos_partition_entry {
- uint8_t boot_ind;
- uint8_t head;
- uint8_t sector;
- uint8_t cyl;
- uint8_t sys_ind;
- uint8_t end_head;
- uint8_t end_sector;
- uint8_t end_cyl;
- uint32_t start_sect;
- uint32_t nr_sects;
-} PACKED;
-
-#define MSDOS_MAGIC "\x55\xaa"
-#define MSDOS_PARTTABLE_OFFSET 0x1be
-#define MSDOS_SIG_OFF 0x1fe
-#define BSIZE 0x200
-#define DOS_EXTENDED_PARTITION 0x05
-#define LINUX_EXTENDED_PARTITION 0x85
-#define WIN98_EXTENDED_PARTITION 0x0f
-#define LINUX_RAID_PARTITION 0xfd
-#define is_extended(type) \
- (type == DOS_EXTENDED_PARTITION || \
- type == WIN98_EXTENDED_PARTITION || \
- type == LINUX_EXTENDED_PARTITION)
-#define is_raid(type) \
- (type == LINUX_RAID_PARTITION)
-
-int volume_id_probe_msdos_part_table(struct volume_id *id, uint64_t off)
-{
- const uint8_t *buf;
- int i;
- uint64_t poff;
- uint64_t plen;
- uint64_t extended = 0;
- uint64_t current;
- uint64_t next;
- int limit;
- int empty = 1;
- struct msdos_partition_entry *part;
- struct volume_id_partition *p;
-
- dbg("probing at offset 0x%llx", (unsigned long long) off);
-
- buf = volume_id_get_buffer(id, off, 0x200);
- if (buf == NULL)
- return -1;
-
- if (memcmp(&buf[MSDOS_SIG_OFF], MSDOS_MAGIC, 2) != 0)
- return -1;
-
- /* check flags on all entries for a valid partition table */
- part = (struct msdos_partition_entry*) &buf[MSDOS_PARTTABLE_OFFSET];
- for (i = 0; i < 4; i++) {
- if (part[i].boot_ind != 0 &&
- part[i].boot_ind != 0x80)
- return -1;
-
- if (le32_to_cpu(part[i].nr_sects) != 0)
- empty = 0;
- }
- if (empty == 1)
- return -1;
-
- if (id->partitions != NULL)
- free(id->partitions);
- id->partitions = malloc(VOLUME_ID_PARTITIONS_MAX *
- sizeof(struct volume_id_partition));
- if (id->partitions == NULL)
- return -1;
- memset(id->partitions, 0x00,
- VOLUME_ID_PARTITIONS_MAX * sizeof(struct volume_id_partition));
-
- for (i = 0; i < 4; i++) {
- poff = (uint64_t) le32_to_cpu(part[i].start_sect) * BSIZE;
- plen = (uint64_t) le32_to_cpu(part[i].nr_sects) * BSIZE;
-
- if (plen == 0)
- continue;
-
- p = &id->partitions[i];
-
- p->partition_type_raw = part[i].sys_ind;
-
- if (is_extended(part[i].sys_ind)) {
- dbg("found extended partition at 0x%llx", (unsigned long long) poff);
- volume_id_set_usage_part(p, VOLUME_ID_PARTITIONTABLE);
- p->type = "msdos_extended_partition";
- if (extended == 0)
- extended = off + poff;
- } else {
- dbg("found 0x%x data partition at 0x%llx, len 0x%llx",
- part[i].sys_ind, (unsigned long long) poff, (unsigned long long) plen);
-
- if (is_raid(part[i].sys_ind))
- volume_id_set_usage_part(p, VOLUME_ID_RAID);
- else
- volume_id_set_usage_part(p, VOLUME_ID_UNPROBED);
- }
-
- p->off = off + poff;
- p->len = plen;
- id->partition_count = i+1;
- }
-
- next = extended;
- current = extended;
- limit = 50;
-
- /* follow extended partition chain and add data partitions */
- while (next != 0) {
- if (limit-- == 0) {
- dbg("extended chain limit reached");
- break;
- }
-
- buf = volume_id_get_buffer(id, current, 0x200);
- if (buf == NULL)
- break;
-
- part = (struct msdos_partition_entry*) &buf[MSDOS_PARTTABLE_OFFSET];
-
- if (memcmp(&buf[MSDOS_SIG_OFF], MSDOS_MAGIC, 2) != 0)
- break;
-
- next = 0;
-
- for (i = 0; i < 4; i++) {
- poff = (uint64_t) le32_to_cpu(part[i].start_sect) * BSIZE;
- plen = (uint64_t) le32_to_cpu(part[i].nr_sects) * BSIZE;
-
- if (plen == 0)
- continue;
-
- if (is_extended(part[i].sys_ind)) {
- dbg("found extended partition at 0x%llx", (unsigned long long) poff);
- if (next == 0)
- next = extended + poff;
- } else {
- dbg("found 0x%x data partition at 0x%llx, len 0x%llx",
- part[i].sys_ind, (unsigned long long) poff, (unsigned long long) plen);
-
- /* we always start at the 5th entry */
- while (id->partition_count < 4)
- volume_id_set_usage_part(&id->partitions[id->partition_count++], VOLUME_ID_UNUSED);
-
- p = &id->partitions[id->partition_count];
-
- if (is_raid(part[i].sys_ind))
- volume_id_set_usage_part(p, VOLUME_ID_RAID);
- else
- volume_id_set_usage_part(p, VOLUME_ID_UNPROBED);
-
- p->off = current + poff;
- p->len = plen;
- id->partition_count++;
-
- p->partition_type_raw = part[i].sys_ind;
-
- if (id->partition_count >= VOLUME_ID_PARTITIONS_MAX) {
- dbg("too many partitions");
- next = 0;
- }
- }
- }
-
- current = next;
- }
-
- volume_id_set_usage(id, VOLUME_ID_PARTITIONTABLE);
- id->type = "msdos_partition_table";
-
- return 0;
-}
#include <stdint.h>
#include <stddef.h>
-#define VOLUME_ID_VERSION 59
+#define VOLUME_ID_VERSION 60
#ifndef PACKED
#define PACKED __attribute__((packed))
extern int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size);
extern int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size);
-/* partition tables */
-extern int volume_id_probe_msdos_part_table(struct volume_id *id, uint64_t off);
-extern int volume_id_probe_mac_partition_map(struct volume_id *id, uint64_t off);
-
#endif
~ianmdlvl / elogind.git / commitdiff