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support for mount by label (not yet tested)

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Also adds findfs applet. Closes bug 1143.
This commit is contained in:
Denis Vlasenko
2008-02-18 21:08:49 +00:00
parent 27dd495b98
commit de7684a309
43 changed files with 4632 additions and 20 deletions
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41
util-linux/volume_id/Kbuild Normal file
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# Makefile for busybox
#
# Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
#
# Licensed under the GPL v2, see the file LICENSE in this tarball.
lib-y:=
lib-$(CONFIG_FINDFS) += get_devname.o
lib-$(CONFIG_FEATURE_MOUNT_LABEL) += get_devname.o
lib-$(CONFIG_VOLUMEID) += volume_id.o util.o
lib-$(CONFIG_FEATURE_VOLUMEID_EXT) += ext.o
lib-$(CONFIG_FEATURE_VOLUMEID_FAT) += fat.o
lib-$(CONFIG_FEATURE_VOLUMEID_HFS) += hfs.o
lib-$(CONFIG_FEATURE_VOLUMEID_HIGHPOINTRAID) += highpoint.o
lib-$(CONFIG_FEATURE_VOLUMEID_ISWRAID) += isw_raid.o
lib-$(CONFIG_FEATURE_VOLUMEID_LSIRAID) += lsi_raid.o
lib-$(CONFIG_FEATURE_VOLUMEID_VIARAID) += via_raid.o
lib-$(CONFIG_FEATURE_VOLUMEID_SILICONRAID) += silicon_raid.o
lib-$(CONFIG_FEATURE_VOLUMEID_NVIDIARAID) += nvidia_raid.o
lib-$(CONFIG_FEATURE_VOLUMEID_PROMISERAID) += promise_raid.o
lib-$(CONFIG_FEATURE_VOLUMEID_ISO9660) += iso9660.o
lib-$(CONFIG_FEATURE_VOLUMEID_JFS) += jfs.o
lib-$(CONFIG_FEATURE_VOLUMEID_LINUXRAID) += linux_raid.o
lib-$(CONFIG_FEATURE_VOLUMEID_LINUXSWAP) += linux_swap.o
lib-$(CONFIG_FEATURE_VOLUMEID_LVM) += lvm.o
lib-$(CONFIG_FEATURE_VOLUMEID_MAC) += mac.o
lib-$(CONFIG_FEATURE_VOLUMEID_MSDOS) += msdos.o
lib-$(CONFIG_FEATURE_VOLUMEID_NTFS) += ntfs.o
lib-$(CONFIG_FEATURE_VOLUMEID_REISERFS) += reiserfs.o
lib-$(CONFIG_FEATURE_VOLUMEID_UDF) += udf.o
lib-$(CONFIG_FEATURE_VOLUMEID_UFS) += ufs.o
lib-$(CONFIG_FEATURE_VOLUMEID_XFS) += xfs.o
lib-$(CONFIG_FEATURE_VOLUMEID_CRAMFS) += cramfs.o
lib-$(CONFIG_FEATURE_VOLUMEID_HPFS) += hpfs.o
lib-$(CONFIG_FEATURE_VOLUMEID_ROMFS) += romfs.o
lib-$(CONFIG_FEATURE_VOLUMEID_SYSV) += sysv.o
lib-$(CONFIG_FEATURE_VOLUMEID_MINIX) += minix.o
lib-$(CONFIG_FEATURE_VOLUMEID_LUKS) += luks.o
lib-$(CONFIG_FEATURE_VOLUMEID_OCFS2) += ocfs2.o

58
util-linux/volume_id/cramfs.c Normal file
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/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct cramfs_super {
uint8_t magic[4];
uint32_t size;
uint32_t flags;
uint32_t future;
uint8_t signature[16];
struct cramfs_info {
uint32_t crc;
uint32_t edition;
uint32_t blocks;
uint32_t files;
} __attribute__((__packed__)) info;
uint8_t name[16];
} __attribute__((__packed__));
int volume_id_probe_cramfs(struct volume_id *id, uint64_t off)
{
struct cramfs_super *cs;
dbg("probing at offset 0x%llx", (unsigned long long) off);
cs = volume_id_get_buffer(id, off, 0x200);
if (cs == NULL)
return -1;
if (memcmp(cs->magic, "\x45\x3d\xcd\x28", 4) == 0) {
volume_id_set_label_raw(id, cs->name, 16);
volume_id_set_label_string(id, cs->name, 16);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "cramfs";
return 0;
}
return -1;
}

71
util-linux/volume_id/ext.c Normal file
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/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct ext2_super_block {
uint32_t inodes_count;
uint32_t blocks_count;
uint32_t r_blocks_count;
uint32_t free_blocks_count;
uint32_t free_inodes_count;
uint32_t first_data_block;
uint32_t log_block_size;
uint32_t dummy3[7];
uint8_t magic[2];
uint16_t state;
uint32_t dummy5[8];
uint32_t feature_compat;
uint32_t feature_incompat;
uint32_t feature_ro_compat;
uint8_t uuid[16];
uint8_t volume_name[16];
} __attribute__((__packed__));
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x00000004
#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x00000008
#define EXT_SUPERBLOCK_OFFSET 0x400
int volume_id_probe_ext(struct volume_id *id, uint64_t off)
{
struct ext2_super_block *es;
dbg("probing at offset 0x%llx", (unsigned long long) off);
es = volume_id_get_buffer(id, off + EXT_SUPERBLOCK_OFFSET, 0x200);
if (es == NULL)
return -1;
if (es->magic[0] != 0123 ||
es->magic[1] != 0357)
return -1;
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
volume_id_set_label_raw(id, es->volume_name, 16);
volume_id_set_label_string(id, es->volume_name, 16);
volume_id_set_uuid(id, es->uuid, UUID_DCE);
if ((le32_to_cpu(es->feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL) != 0)
id->type = "ext3";
else
id->type = "ext2";
return 0;
}

333
util-linux/volume_id/fat.c Normal file
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/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
#define FAT12_MAX 0xff5
#define FAT16_MAX 0xfff5
#define FAT_ATTR_VOLUME_ID 0x08
#define FAT_ATTR_DIR 0x10
#define FAT_ATTR_LONG_NAME 0x0f
#define FAT_ATTR_MASK 0x3f
#define FAT_ENTRY_FREE 0xe5
struct vfat_super_block {
uint8_t boot_jump[3];
uint8_t sysid[8];
uint16_t sector_size;
uint8_t sectors_per_cluster;
uint16_t reserved;
uint8_t fats;
uint16_t dir_entries;
uint16_t sectors;
uint8_t media;
uint16_t fat_length;
uint16_t secs_track;
uint16_t heads;
uint32_t hidden;
uint32_t total_sect;
union {
struct fat_super_block {
uint8_t unknown[3];
uint8_t serno[4];
uint8_t label[11];
uint8_t magic[8];
uint8_t dummy2[192];
uint8_t pmagic[2];
} __attribute__((__packed__)) fat;
struct fat32_super_block {
uint32_t fat32_length;
uint16_t flags;
uint8_t version[2];
uint32_t root_cluster;
uint16_t insfo_sector;
uint16_t backup_boot;
uint16_t reserved2[6];
uint8_t unknown[3];
uint8_t serno[4];
uint8_t label[11];
uint8_t magic[8];
uint8_t dummy2[164];
uint8_t pmagic[2];
} __attribute__((__packed__)) fat32;
} __attribute__((__packed__)) type;
} __attribute__((__packed__));
struct vfat_dir_entry {
uint8_t name[11];
uint8_t attr;
uint16_t time_creat;
uint16_t date_creat;
uint16_t time_acc;
uint16_t date_acc;
uint16_t cluster_high;
uint16_t time_write;
uint16_t date_write;
uint16_t cluster_low;
uint32_t size;
} __attribute__((__packed__));
static uint8_t *get_attr_volume_id(struct vfat_dir_entry *dir, unsigned count)
{
unsigned i;
for (i = 0; i < count; i++) {
/* end marker */
if (dir[i].name[0] == 0x00) {
dbg("end of dir");
break;
}
/* empty entry */
if (dir[i].name[0] == FAT_ENTRY_FREE)
continue;
/* long name */
if ((dir[i].attr & FAT_ATTR_MASK) == FAT_ATTR_LONG_NAME)
continue;
if ((dir[i].attr & (FAT_ATTR_VOLUME_ID | FAT_ATTR_DIR)) == FAT_ATTR_VOLUME_ID) {
/* labels do not have file data */
if (dir[i].cluster_high != 0 || dir[i].cluster_low != 0)
continue;
dbg("found ATTR_VOLUME_ID id in root dir");
return dir[i].name;
}
dbg("skip dir entry");
}
return NULL;
}
int volume_id_probe_vfat(struct volume_id *id, uint64_t off)
{
struct vfat_super_block *vs;
struct vfat_dir_entry *dir;
uint16_t sector_size;
uint16_t dir_entries;
uint32_t sect_count;
uint16_t reserved;
uint32_t fat_size;
uint32_t root_cluster;
uint32_t dir_size;
uint32_t cluster_count;
uint32_t fat_length;
uint64_t root_start;
uint32_t start_data_sect;
uint16_t root_dir_entries;
uint8_t *buf;
uint32_t buf_size;
uint8_t *label = NULL;
uint32_t next;
int maxloop;
dbg("probing at offset 0x%llx", (unsigned long long) off);
vs = volume_id_get_buffer(id, off, 0x200);
if (vs == NULL)
return -1;
/* believe only that's fat, don't trust the version
* the cluster_count will tell us
*/
if (memcmp(vs->sysid, "NTFS", 4) == 0)
return -1;
if (memcmp(vs->type.fat32.magic, "MSWIN", 5) == 0)
goto valid;
if (memcmp(vs->type.fat32.magic, "FAT32 ", 8) == 0)
goto valid;
if (memcmp(vs->type.fat.magic, "FAT16 ", 8) == 0)
goto valid;
if (memcmp(vs->type.fat.magic, "MSDOS", 5) == 0)
goto valid;
if (memcmp(vs->type.fat.magic, "FAT12 ", 8) == 0)
goto valid;
/*
* There are old floppies out there without a magic, so we check
* for well known values and guess if it's a fat volume
*/
/* boot jump address check */
if ((vs->boot_jump[0] != 0xeb || vs->boot_jump[2] != 0x90) &&
vs->boot_jump[0] != 0xe9)
return -1;
/* heads check */
if (vs->heads == 0)
return -1;
/* cluster size check*/
if (vs->sectors_per_cluster == 0 ||
(vs->sectors_per_cluster & (vs->sectors_per_cluster-1)))
return -1;
/* media check */
if (vs->media < 0xf8 && vs->media != 0xf0)
return -1;
/* fat count*/
if (vs->fats != 2)
return -1;
valid:
/* sector size check */
sector_size = le16_to_cpu(vs->sector_size);
if (sector_size != 0x200 && sector_size != 0x400 &&
sector_size != 0x800 && sector_size != 0x1000)
return -1;
dbg("sector_size 0x%x", sector_size);
dbg("sectors_per_cluster 0x%x", vs->sectors_per_cluster);
dir_entries = le16_to_cpu(vs->dir_entries);
reserved = le16_to_cpu(vs->reserved);
dbg("reserved 0x%x", reserved);
sect_count = le16_to_cpu(vs->sectors);
if (sect_count == 0)
sect_count = le32_to_cpu(vs->total_sect);
dbg("sect_count 0x%x", sect_count);
fat_length = le16_to_cpu(vs->fat_length);
if (fat_length == 0)
fat_length = le32_to_cpu(vs->type.fat32.fat32_length);
dbg("fat_length 0x%x", fat_length);
fat_size = fat_length * vs->fats;
dir_size = ((dir_entries * sizeof(struct vfat_dir_entry)) +
(sector_size-1)) / sector_size;
dbg("dir_size 0x%x", dir_size);
cluster_count = sect_count - (reserved + fat_size + dir_size);
cluster_count /= vs->sectors_per_cluster;
dbg("cluster_count 0x%x", cluster_count);
if (cluster_count < FAT12_MAX) {
strcpy(id->type_version, "FAT12");
} else if (cluster_count < FAT16_MAX) {
strcpy(id->type_version, "FAT16");
} else {
strcpy(id->type_version, "FAT32");
goto fat32;
}
/* the label may be an attribute in the root directory */
root_start = (reserved + fat_size) * sector_size;
dbg("root dir start 0x%llx", (unsigned long long) root_start);
root_dir_entries = le16_to_cpu(vs->dir_entries);
dbg("expected entries 0x%x", root_dir_entries);
buf_size = root_dir_entries * sizeof(struct vfat_dir_entry);
buf = volume_id_get_buffer(id, off + root_start, buf_size);
if (buf == NULL)
goto found;
dir = (struct vfat_dir_entry*) buf;
label = get_attr_volume_id(dir, root_dir_entries);
vs = volume_id_get_buffer(id, off, 0x200);
if (vs == NULL)
return -1;
if (label != NULL && memcmp(label, "NO NAME ", 11) != 0) {
volume_id_set_label_raw(id, label, 11);
volume_id_set_label_string(id, label, 11);
} else if (memcmp(vs->type.fat.label, "NO NAME ", 11) != 0) {
volume_id_set_label_raw(id, vs->type.fat.label, 11);
volume_id_set_label_string(id, vs->type.fat.label, 11);
}
volume_id_set_uuid(id, vs->type.fat.serno, UUID_DOS);
goto found;
fat32:
/* FAT32 root dir is a cluster chain like any other directory */
buf_size = vs->sectors_per_cluster * sector_size;
root_cluster = le32_to_cpu(vs->type.fat32.root_cluster);
dbg("root dir cluster %u", root_cluster);
start_data_sect = reserved + fat_size;
next = root_cluster;
maxloop = 100;
while (--maxloop) {
uint32_t next_sect_off;
uint64_t next_off;
uint64_t fat_entry_off;
int count;
dbg("next cluster %u", next);
next_sect_off = (next - 2) * vs->sectors_per_cluster;
next_off = (start_data_sect + next_sect_off) * sector_size;
dbg("cluster offset 0x%llx", (unsigned long long) next_off);
/* get cluster */
buf = volume_id_get_buffer(id, off + next_off, buf_size);
if (buf == NULL)
goto found;
dir = (struct vfat_dir_entry*) buf;
count = buf_size / sizeof(struct vfat_dir_entry);
dbg("expected entries 0x%x", count);
label = get_attr_volume_id(dir, count);
if (label)
break;
/* get FAT entry */
fat_entry_off = (reserved * sector_size) + (next * sizeof(uint32_t));
buf = volume_id_get_buffer(id, off + fat_entry_off, buf_size);
if (buf == NULL)
goto found;
/* set next cluster */
next = le32_to_cpu(*((uint32_t *) buf) & 0x0fffffff);
if (next == 0)
break;
}
if (maxloop == 0)
dbg("reached maximum follow count of root cluster chain, give up");
vs = volume_id_get_buffer(id, off, 0x200);
if (vs == NULL)
return -1;
if (label != NULL && memcmp(label, "NO NAME ", 11) != 0) {
volume_id_set_label_raw(id, label, 11);
volume_id_set_label_string(id, label, 11);
} else if (memcmp(vs->type.fat32.label, "NO NAME ", 11) != 0) {
volume_id_set_label_raw(id, vs->type.fat32.label, 11);
volume_id_set_label_string(id, vs->type.fat32.label, 11);
}
volume_id_set_uuid(id, vs->type.fat32.serno, UUID_DOS);
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "vfat";
return 0;
}

399
util-linux/volume_id/get_devname.c Normal file
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/* vi: set sw=4 ts=4: */
/*
* Support functions for mounting devices by label/uuid
*
* Copyright (C) 2006 by Jason Schoon <floydpink@gmail.com>
* Some portions cribbed from e2fsprogs, util-linux, dosfstools
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include "volume_id_internal.h"
#define BLKGETSIZE64 _IOR(0x12,114,size_t)
#define PROC_PARTITIONS "/proc/partitions"
#define PROC_CDROMS "/proc/sys/dev/cdrom/info"
#define DEVLABELDIR "/dev"
#define SYS_BLOCK "/sys/block"
static struct uuidCache_s {
struct uuidCache_s *next;
char uuid[16];
char *device;
char *label;
int major, minor;
} *uuidCache;
/* for now, only ext2, ext3 and xfs are supported */
static int
get_label_uuid(const char *device, char **label, char **uuid, int iso_only)
{
int rv = 1;
uint64_t size;
struct volume_id *vid;
vid = volume_id_open_node(device);
if (ioctl(vid->fd, BLKGETSIZE64, &size) != 0) {
size = 0;
}
#if ENABLE_FEATURE_VOLUMEID_ISO9660
if (iso_only ?
volume_id_probe_iso9660(vid, 0) != 0 :
volume_id_probe_all(vid, 0, size) != 0) {
goto ret;
}
#else
if (volume_id_probe_all(vid, 0, size) != 0) {
goto ret;
}
#endif
if (vid->label[0] != '\0') {
*label = xstrndup(vid->label, sizeof(vid->label));
*uuid = xstrndup(vid->uuid, sizeof(vid->uuid));
printf("Found label %s on %s (uuid:%s)\n", *label, device, *uuid);
rv = 0;
}
ret:
free_volume_id(vid);
return rv;
}
static void
uuidcache_addentry(char * device, int major, int minor, char *label, char *uuid)
{
struct uuidCache_s *last;
if (!uuidCache) {
last = uuidCache = xzalloc(sizeof(*uuidCache));
} else {
for (last = uuidCache; last->next; last = last->next)
continue;
last->next = xzalloc(sizeof(*uuidCache));
last = last->next;
}
/*last->next = NULL; - xzalloc did it*/
last->label = label;
last->device = device;
last->major = major;
last->minor = minor;
memcpy(last->uuid, uuid, sizeof(last->uuid));
}
static void
uuidcache_check_device(const char *device_name, int ma, int mi, int iso_only)
{
char device[110];
char *uuid = NULL, *label = NULL;
char *ptr;
char *deviceDir = NULL;
int mustRemove = 0;
int mustRemoveDir = 0;
int i;
sprintf(device, "%s/%s", DEVLABELDIR, device_name);
if (access(device, F_OK)) {
ptr = device;
i = 0;
while (*ptr)
if (*ptr++ == '/')
i++;
if (i > 2) {
deviceDir = alloca(strlen(device) + 1);
strcpy(deviceDir, device);
ptr = deviceDir + (strlen(device) - 1);
while (*ptr != '/')
*ptr-- = '\0';
if (mkdir(deviceDir, 0644)) {
printf("mkdir: cannot create directory %s: %d\n", deviceDir, errno);
} else {
mustRemoveDir = 1;
}
}
mknod(device, S_IFBLK | 0600, makedev(ma, mi));
mustRemove = 1;
}
if (!get_label_uuid(device, &label, &uuid, iso_only))
uuidcache_addentry(strdup(device), ma, mi,
label, uuid);
if (mustRemove) unlink(device);
if (mustRemoveDir) rmdir(deviceDir);
}
static void
uuidcache_init_partitions(void)
{
char line[100];
int ma, mi;
unsigned long long sz;
FILE *procpt;
int firstPass;
int handleOnFirst;
char *chptr;
procpt = xfopen(PROC_PARTITIONS, "r");
/*
# cat /proc/partitions
major minor #blocks name
8 0 293036184 sda
8 1 6835626 sda1
8 2 1 sda2
8 5 979933 sda5
8 6 15623181 sda6
8 7 97659103 sda7
8 8 171935631 sda8
*/
for (firstPass = 1; firstPass >= 0; firstPass--) {
fseek(procpt, 0, SEEK_SET);
while (fgets(line, sizeof(line), procpt)) {
/* The original version of this code used sscanf, but
diet's sscanf is quite limited */
chptr = line;
if (*chptr != ' ') continue;
chptr++;
ma = bb_strtou(chptr, &chptr, 0);
if (ma < 0) continue;
chptr = skip_whitespace(chptr);
mi = bb_strtou(chptr, &chptr, 0);
if (mi < 0) continue;
chptr = skip_whitespace(chptr);
sz = bb_strtoull(chptr, &chptr, 0);
if ((long long)sz == -1LL) continue;
chptr = skip_whitespace(chptr);
/* skip extended partitions (heuristic: size 1) */
if (sz == 1)
continue;
*strchrnul(chptr, '\n') = '\0';
/* now chptr => device name */
if (!chptr[0])
continue;
/* look only at md devices on first pass */
handleOnFirst = (chptr[0] == 'm' && chptr[1] == 'd');
if (firstPass != handleOnFirst)
continue;
/* heuristic: partition name ends in a digit */
if (isdigit(chptr[strlen(chptr) - 1])) {
uuidcache_check_device(chptr, ma, mi, 0);
}
}
}
fclose(procpt);
}
static int
dev_get_major_minor(char *device_name, int *major, int *minor)
{
char * dev_path;
int fd;
char dev[7];
char *major_ptr, *minor_ptr;
dev_path = alloca(strlen(SYS_BLOCK) + strlen(device_name) + 6);
sprintf(dev_path, "%s/%s/dev", SYS_BLOCK, device_name);
fd = open(dev_path, O_RDONLY);
if (fd < 0) return 1;
full_read(fd, dev, sizeof(dev));
close(fd);
major_ptr = dev;
minor_ptr = strchr(dev, ':');
if (!minor_ptr) return 1;
*minor_ptr++ = '\0';
*major = strtol(major_ptr, NULL, 10);
*minor = strtol(minor_ptr, NULL, 10);
return 0;
}
static void
uuidcache_init_cdroms(void)
{
char line[100];
int ma, mi;
FILE *proccd;
proccd = fopen(PROC_CDROMS, "r");
if (!proccd) {
static smallint warn = 0;
if (!warn) {
warn = 1;
bb_error_msg("mount: could not open %s, so UUID and LABEL "
"conversion cannot be done for CD-Roms.",
PROC_CDROMS);
}
return;
}
while (fgets(line, sizeof(line), proccd)) {
const char *drive_name_string = "drive name:\t\t";
if (!strncmp(line, drive_name_string, strlen(drive_name_string))) {
char *device_name;
device_name = strtok(line + strlen(drive_name_string), "\t\n");
while (device_name) {
dev_get_major_minor(device_name, &ma, &mi);
uuidcache_check_device(device_name, ma, mi, 1);
device_name = strtok(NULL, "\t\n");
}
break;
}
}
fclose(proccd);
}
static void
uuidcache_init(void)
{
if (uuidCache)
return;
uuidcache_init_partitions();
uuidcache_init_cdroms();
}
#define UUID 1
#define VOL 2
#ifdef UNUSED
static char *
get_spec_by_x(int n, const char *t, int * majorPtr, int * minorPtr)
{
struct uuidCache_s *uc;
uuidcache_init();
uc = uuidCache;
while(uc) {
switch (n) {
case UUID:
if (!memcmp(t, uc->uuid, sizeof(uc->uuid))) {
*majorPtr = uc->major;
*minorPtr = uc->minor;
return uc->device;
}
break;
case VOL:
if (!strcmp(t, uc->label)) {
*majorPtr = uc->major;
*minorPtr = uc->minor;
return uc->device;
}
break;
}
uc = uc->next;
}
return NULL;
}
static unsigned char
fromhex(char c)
{
if (isdigit(c))
return (c - '0');
if (islower(c))
return (c - 'a' + 10);
return (c - 'A' + 10);
}
static char *
get_spec_by_uuid(const char *s, int * major, int * minor)
{
unsigned char uuid[16];
int i;
if (strlen(s) != 36 ||
s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-')
goto bad_uuid;
for (i=0; i<16; i++) {
if (*s == '-') s++;
if (!isxdigit(s[0]) || !isxdigit(s[1]))
goto bad_uuid;
uuid[i] = ((fromhex(s[0])<<4) | fromhex(s[1]));
s += 2;
}
return get_spec_by_x(UUID, (char *)uuid, major, minor);
bad_uuid:
fprintf(stderr, _("mount: bad UUID"));
return 0;
}
static char *
get_spec_by_volume_label(const char *s, int *major, int *minor)
{
return get_spec_by_x(VOL, s, major, minor);
}
static int display_uuid_cache(void)
{
struct uuidCache_s *u;
size_t i;
uuidcache_init();
u = uuidCache;
while (u) {
printf("%s %s ", u->device, u->label);
for (i = 0; i < sizeof(u->uuid); i++) {
if (i == 4 || i == 6 || i == 8 || i == 10)
printf("-");
printf("%x", u->uuid[i] & 0xff);
}
printf("\n");
u = u->next;
}
return 0;
}
#endif // UNUSED
/* Used by mount and findfs */
char *get_devname_from_label(const char *spec)
{
struct uuidCache_s *uc;
int spec_len = strlen(spec);
uuidcache_init();
uc = uuidCache;
while (uc) {
if (uc->label && !strncmp(spec, uc->label, spec_len)) {
return xstrdup(uc->device);
}
uc = uc->next;
}
return NULL;
}
char *get_devname_from_uuid(const char *spec)
{
struct uuidCache_s *uc;
uuidcache_init();
uc = uuidCache;
while (uc) {
if (!memcmp(spec, uc->uuid, sizeof(uc->uuid))) {
return xstrdup(uc->device);
}
uc = uc->next;
}
return NULL;
}

292
util-linux/volume_id/hfs.c Normal file
View File

@@ -0,0 +1,292 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct hfs_finder_info{
uint32_t boot_folder;
uint32_t start_app;
uint32_t open_folder;
uint32_t os9_folder;
uint32_t reserved;
uint32_t osx_folder;
uint8_t id[8];
} __attribute__((__packed__));
struct hfs_mdb {
uint8_t signature[2];
uint32_t cr_date;
uint32_t ls_Mod;
uint16_t atrb;
uint16_t nm_fls;
uint16_t vbm_st;
uint16_t alloc_ptr;
uint16_t nm_al_blks;
uint32_t al_blk_size;
uint32_t clp_size;
uint16_t al_bl_st;
uint32_t nxt_cnid;
uint16_t free_bks;
uint8_t label_len;
uint8_t label[27];
uint32_t vol_bkup;
uint16_t vol_seq_num;
uint32_t wr_cnt;
uint32_t xt_clump_size;
uint32_t ct_clump_size;
uint16_t num_root_dirs;
uint32_t file_count;
uint32_t dir_count;
struct hfs_finder_info finder_info;
uint8_t embed_sig[2];
uint16_t embed_startblock;
uint16_t embed_blockcount;
} __attribute__((__packed__));
struct hfsplus_bnode_descriptor {
uint32_t next;
uint32_t prev;
uint8_t type;
uint8_t height;
uint16_t num_recs;
uint16_t reserved;
} __attribute__((__packed__));
struct hfsplus_bheader_record {
uint16_t depth;
uint32_t root;
uint32_t leaf_count;
uint32_t leaf_head;
uint32_t leaf_tail;
uint16_t node_size;
} __attribute__((__packed__));
struct hfsplus_catalog_key {
uint16_t key_len;
uint32_t parent_id;
uint16_t unicode_len;
uint8_t unicode[255 * 2];
} __attribute__((__packed__));
struct hfsplus_extent {
uint32_t start_block;
uint32_t block_count;
} __attribute__((__packed__));
#define HFSPLUS_EXTENT_COUNT 8
struct hfsplus_fork {
uint64_t total_size;
uint32_t clump_size;
uint32_t total_blocks;
struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
} __attribute__((__packed__));
struct hfsplus_vol_header {
uint8_t signature[2];
uint16_t version;
uint32_t attributes;
uint32_t last_mount_vers;
uint32_t reserved;
uint32_t create_date;
uint32_t modify_date;
uint32_t backup_date;
uint32_t checked_date;
uint32_t file_count;
uint32_t folder_count;
uint32_t blocksize;
uint32_t total_blocks;
uint32_t free_blocks;
uint32_t next_alloc;
uint32_t rsrc_clump_sz;
uint32_t data_clump_sz;
uint32_t next_cnid;
uint32_t write_count;
uint64_t encodings_bmp;
struct hfs_finder_info finder_info;
struct hfsplus_fork alloc_file;
struct hfsplus_fork ext_file;
struct hfsplus_fork cat_file;
struct hfsplus_fork attr_file;
struct hfsplus_fork start_file;
} __attribute__((__packed__));
#define HFS_SUPERBLOCK_OFFSET 0x400
#define HFS_NODE_LEAF 0xff
#define HFSPLUS_POR_CNID 1
int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off)
{
unsigned blocksize;
unsigned cat_block;
unsigned ext_block_start;
unsigned ext_block_count;
int ext;
unsigned leaf_node_head;
unsigned leaf_node_count;
unsigned leaf_node_size;
unsigned leaf_block;
uint64_t leaf_off;
unsigned alloc_block_size;
unsigned alloc_first_block;
unsigned embed_first_block;
unsigned record_count;
struct hfsplus_vol_header *hfsplus;
struct hfsplus_bnode_descriptor *descr;
struct hfsplus_bheader_record *bnode;
struct hfsplus_catalog_key *key;
unsigned label_len;
struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
struct hfs_mdb *hfs;
const uint8_t *buf;
dbg("probing at offset 0x%llx", (unsigned long long) off);
buf = volume_id_get_buffer(id, off + HFS_SUPERBLOCK_OFFSET, 0x200);
if (buf == NULL)
return -1;
hfs = (struct hfs_mdb *) buf;
if (hfs->signature[0] != 'B' || hfs->signature[1] != 'D')
goto checkplus;
/* it may be just a hfs wrapper for hfs+ */
if (memcmp(hfs->embed_sig, "H+", 2) == 0) {
alloc_block_size = be32_to_cpu(hfs->al_blk_size);
dbg("alloc_block_size 0x%x", alloc_block_size);
alloc_first_block = be16_to_cpu(hfs->al_bl_st);
dbg("alloc_first_block 0x%x", alloc_first_block);
embed_first_block = be16_to_cpu(hfs->embed_startblock);
dbg("embed_first_block 0x%x", embed_first_block);
off += (alloc_first_block * 512) +
(embed_first_block * alloc_block_size);
dbg("hfs wrapped hfs+ found at offset 0x%llx", (unsigned long long) off);
buf = volume_id_get_buffer(id, off + HFS_SUPERBLOCK_OFFSET, 0x200);
if (buf == NULL)
return -1;
goto checkplus;
}
if (hfs->label_len > 0 && hfs->label_len < 28) {
volume_id_set_label_raw(id, hfs->label, hfs->label_len);
volume_id_set_label_string(id, hfs->label, hfs->label_len) ;
}
volume_id_set_uuid(id, hfs->finder_info.id, UUID_HFS);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "hfs";
return 0;
checkplus:
hfsplus = (struct hfsplus_vol_header *) buf;
if (hfs->signature[0] == 'H')
if (hfs->signature[1] == '+' || hfs->signature[1] == 'X')
goto hfsplus;
return -1;
hfsplus:
volume_id_set_uuid(id, hfsplus->finder_info.id, UUID_HFS);
blocksize = be32_to_cpu(hfsplus->blocksize);
dbg("blocksize %u", blocksize);
memcpy(extents, hfsplus->cat_file.extents, sizeof(extents));
cat_block = be32_to_cpu(extents[0].start_block);
dbg("catalog start block 0x%x", cat_block);
buf = volume_id_get_buffer(id, off + (cat_block * blocksize), 0x2000);
if (buf == NULL)
goto found;
bnode = (struct hfsplus_bheader_record *)
&buf[sizeof(struct hfsplus_bnode_descriptor)];
leaf_node_head = be32_to_cpu(bnode->leaf_head);
dbg("catalog leaf node 0x%x", leaf_node_head);
leaf_node_size = be16_to_cpu(bnode->node_size);
dbg("leaf node size 0x%x", leaf_node_size);
leaf_node_count = be32_to_cpu(bnode->leaf_count);
dbg("leaf node count 0x%x", leaf_node_count);
if (leaf_node_count == 0)
goto found;
leaf_block = (leaf_node_head * leaf_node_size) / blocksize;
/* get physical location */
for (ext = 0; ext < HFSPLUS_EXTENT_COUNT; ext++) {
ext_block_start = be32_to_cpu(extents[ext].start_block);
ext_block_count = be32_to_cpu(extents[ext].block_count);
dbg("extent start block 0x%x, count 0x%x", ext_block_start, ext_block_count);
if (ext_block_count == 0)
goto found;
/* this is our extent */
if (leaf_block < ext_block_count)
break;
leaf_block -= ext_block_count;
}
if (ext == HFSPLUS_EXTENT_COUNT)
goto found;
dbg("found block in extent %i", ext);
leaf_off = (ext_block_start + leaf_block) * blocksize;
buf = volume_id_get_buffer(id, off + leaf_off, leaf_node_size);
if (buf == NULL)
goto found;
descr = (struct hfsplus_bnode_descriptor *) buf;
dbg("descriptor type 0x%x", descr->type);
record_count = be16_to_cpu(descr->num_recs);
dbg("number of records %u", record_count);
if (record_count == 0)
goto found;
if (descr->type != HFS_NODE_LEAF)
goto found;
key = (struct hfsplus_catalog_key *)
&buf[sizeof(struct hfsplus_bnode_descriptor)];
dbg("parent id 0x%x", be32_to_cpu(key->parent_id));
if (key->parent_id != cpu_to_be32(HFSPLUS_POR_CNID))
goto found;
label_len = be16_to_cpu(key->unicode_len) * 2;
dbg("label unicode16 len %i", label_len);
volume_id_set_label_raw(id, key->unicode, label_len);
volume_id_set_label_unicode16(id, key->unicode, BE, label_len);
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "hfsplus";
return 0;
}

86
util-linux/volume_id/highpoint.c Normal file
View File

@@ -0,0 +1,86 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct hpt37x_meta {
uint8_t filler1[32];
uint32_t magic;
} __attribute__((packed));
struct hpt45x_meta {
uint32_t magic;
} __attribute__((packed));
#define HPT37X_CONFIG_OFF 0x1200
#define HPT37X_MAGIC_OK 0x5a7816f0
#define HPT37X_MAGIC_BAD 0x5a7816fd
#define HPT45X_MAGIC_OK 0x5a7816f3
#define HPT45X_MAGIC_BAD 0x5a7816fd
int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off)
{
struct hpt37x_meta *hpt;
uint32_t magic;
dbg("probing at offset 0x%llx", (unsigned long long) off);
hpt = volume_id_get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
if (hpt == NULL)
return -1;
magic = hpt->magic;
if (magic != cpu_to_le32(HPT37X_MAGIC_OK) && magic != cpu_to_le32(HPT37X_MAGIC_BAD))
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "highpoint_raid_member";
return 0;
}
int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
struct hpt45x_meta *hpt;
uint64_t meta_off;
uint32_t magic;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x10000)
return -1;
meta_off = ((size / 0x200)-11) * 0x200;
hpt = volume_id_get_buffer(id, off + meta_off, 0x200);
if (hpt == NULL)
return -1;
magic = hpt->magic;
if (magic != cpu_to_le32(HPT45X_MAGIC_OK) && magic != cpu_to_le32(HPT45X_MAGIC_BAD))
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "highpoint_raid_member";
return 0;
}

50
util-linux/volume_id/hpfs.c Normal file
View File

@@ -0,0 +1,50 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct hpfs_super
{
uint8_t magic[4];
uint8_t version;
} __attribute__((__packed__));
#define HPFS_SUPERBLOCK_OFFSET 0x2000
int volume_id_probe_hpfs(struct volume_id *id, uint64_t off)
{
struct hpfs_super *hs;
dbg("probing at offset 0x%llx", (unsigned long long) off);
hs = volume_id_get_buffer(id, off + HPFS_SUPERBLOCK_OFFSET, 0x200);
if (hs == NULL)
return -1;
if (memcmp(hs->magic, "\x49\xe8\x95\xf9", 4) == 0) {
sprintf(id->type_version, "%u", hs->version);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "hpfs";
return 0;
}
return -1;
}

118
util-linux/volume_id/iso9660.c Normal file
View File

@@ -0,0 +1,118 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
#define ISO_SUPERBLOCK_OFFSET 0x8000
#define ISO_SECTOR_SIZE 0x800
#define ISO_VD_OFFSET (ISO_SUPERBLOCK_OFFSET + ISO_SECTOR_SIZE)
#define ISO_VD_PRIMARY 0x1
#define ISO_VD_SUPPLEMENTARY 0x2
#define ISO_VD_END 0xff
#define ISO_VD_MAX 16
struct iso_volume_descriptor {
uint8_t vd_type;
uint8_t vd_id[5];
uint8_t vd_version;
uint8_t flags;
uint8_t system_id[32];
uint8_t volume_id[32];
uint8_t unused[8];
uint8_t space_size[8];
uint8_t escape_sequences[8];
} __attribute__((__packed__));
struct high_sierra_volume_descriptor {
uint8_t foo[8];
uint8_t type;
uint8_t id[4];
uint8_t version;
} __attribute__((__packed__));
int volume_id_probe_iso9660(struct volume_id *id, uint64_t off)
{
uint8_t *buf;
struct iso_volume_descriptor *is;
struct high_sierra_volume_descriptor *hs;
dbg("probing at offset 0x%llx", (unsigned long long) off);
buf = volume_id_get_buffer(id, off + ISO_SUPERBLOCK_OFFSET, 0x200);
if (buf == NULL)
return -1;
is = (struct iso_volume_descriptor *) buf;
if (memcmp(is->vd_id, "CD001", 5) == 0) {
int vd_offset;
int i;
dbg("read label from PVD");
volume_id_set_label_raw(id, is->volume_id, 32);
volume_id_set_label_string(id, is->volume_id, 32);
dbg("looking for SVDs");
vd_offset = ISO_VD_OFFSET;
for (i = 0; i < ISO_VD_MAX; i++) {
uint8_t svd_label[64];
is = volume_id_get_buffer(id, off + vd_offset, 0x200);
if (is == NULL || is->vd_type == ISO_VD_END)
break;
if (is->vd_type != ISO_VD_SUPPLEMENTARY)
continue;
dbg("found SVD at offset 0x%llx", (unsigned long long) (off + vd_offset));
if (memcmp(is->escape_sequences, "%/@", 3) == 0||
memcmp(is->escape_sequences, "%/C", 3) == 0||
memcmp(is->escape_sequences, "%/E", 3) == 0) {
dbg("Joliet extension found");
volume_id_set_unicode16((char *)svd_label, sizeof(svd_label), is->volume_id, BE, 32);
if (memcmp(id->label, svd_label, 16) == 0) {
dbg("SVD label is identical, use the possibly longer PVD one");
break;
}
volume_id_set_label_raw(id, is->volume_id, 32);
volume_id_set_label_string(id, svd_label, 32);
strcpy(id->type_version, "Joliet Extension");
goto found;
}
vd_offset += ISO_SECTOR_SIZE;
}
goto found;
}
hs = (struct high_sierra_volume_descriptor *) buf;
if (memcmp(hs->id, "CDROM", 5) == 0) {
strcpy(id->type_version, "High Sierra");
goto found;
}
return -1;
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "iso9660";
return 0;
}

58
util-linux/volume_id/isw_raid.c Normal file
View File

@@ -0,0 +1,58 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct isw_meta {
uint8_t sig[32];
uint32_t check_sum;
uint32_t mpb_size;
uint32_t family_num;
uint32_t generation_num;
} __attribute__((packed));
#define ISW_SIGNATURE "Intel Raid ISM Cfg Sig. "
int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
uint64_t meta_off;
struct isw_meta *isw;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x10000)
return -1;
meta_off = ((size / 0x200)-2) * 0x200;
isw = volume_id_get_buffer(id, off + meta_off, 0x200);
if (isw == NULL)
return -1;
if (memcmp(isw->sig, ISW_SIGNATURE, sizeof(ISW_SIGNATURE)-1) != 0)
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
memcpy(id->type_version, &isw->sig[sizeof(ISW_SIGNATURE)-1], 6);
id->type = "isw_raid_member";
return 0;
}

59
util-linux/volume_id/jfs.c Normal file
View File

@@ -0,0 +1,59 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct jfs_super_block {
uint8_t magic[4];
uint32_t version;
uint64_t size;
uint32_t bsize;
uint32_t dummy1;
uint32_t pbsize;
uint32_t dummy2[27];
uint8_t uuid[16];
uint8_t label[16];
uint8_t loguuid[16];
} __attribute__((__packed__));
#define JFS_SUPERBLOCK_OFFSET 0x8000
int volume_id_probe_jfs(struct volume_id *id, uint64_t off)
{
struct jfs_super_block *js;
dbg("probing at offset 0x%llx", (unsigned long long) off);
js = volume_id_get_buffer(id, off + JFS_SUPERBLOCK_OFFSET, 0x200);
if (js == NULL)
return -1;
if (memcmp(js->magic, "JFS1", 4) != 0)
return -1;
volume_id_set_label_raw(id, js->label, 16);
volume_id_set_label_string(id, js->label, 16);
volume_id_set_uuid(id, js->uuid, UUID_DCE);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "jfs";
return 0;
}

79
util-linux/volume_id/linux_raid.c Normal file
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@@ -0,0 +1,79 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct mdp_super_block {
uint32_t md_magic;
uint32_t major_version;
uint32_t minor_version;
uint32_t patch_version;
uint32_t gvalid_words;
uint32_t set_uuid0;
uint32_t ctime;
uint32_t level;
uint32_t size;
uint32_t nr_disks;
uint32_t raid_disks;
uint32_t md_minor;
uint32_t not_persistent;
uint32_t set_uuid1;
uint32_t set_uuid2;
uint32_t set_uuid3;
} __attribute__((packed));
#define MD_RESERVED_BYTES 0x10000
#define MD_MAGIC 0xa92b4efc
int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
uint64_t sboff;
uint8_t uuid[16];
struct mdp_super_block *mdp;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x10000)
return -1;
sboff = (size & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES;
mdp = volume_id_get_buffer(id, off + sboff, 0x800);
if (mdp == NULL)
return -1;
if (mdp->md_magic != cpu_to_le32(MD_MAGIC))
return -1;
memcpy(uuid, &mdp->set_uuid0, 4);
memcpy(&uuid[4], &mdp->set_uuid1, 12);
volume_id_set_uuid(id, uuid, UUID_DCE);
snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u.%u",
le32_to_cpu(mdp->major_version),
le32_to_cpu(mdp->minor_version),
le32_to_cpu(mdp->patch_version));
dbg("found raid signature");
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "linux_raid_member";
return 0;
}

73
util-linux/volume_id/linux_swap.c Normal file
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@@ -0,0 +1,73 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct swap_header_v1_2 {
uint8_t bootbits[1024];
uint32_t version;
uint32_t last_page;
uint32_t nr_badpages;
uint8_t uuid[16];
uint8_t volume_name[16];
} __attribute__((__packed__));
#define LARGEST_PAGESIZE 0x4000
int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off)
{
struct swap_header_v1_2 *sw;
const uint8_t *buf;
unsigned page;
dbg("probing at offset 0x%llx", (unsigned long long) off);
/* the swap signature is at the end of the PAGE_SIZE */
for (page = 0x1000; page <= LARGEST_PAGESIZE; page <<= 1) {
buf = volume_id_get_buffer(id, off + page-10, 10);
if (buf == NULL)
return -1;
if (memcmp(buf, "SWAP-SPACE", 10) == 0) {
id->type_version[0] = '1';
id->type_version[1] = '\0';
goto found;
}
if (memcmp(buf, "SWAPSPACE2", 10) == 0) {
sw = volume_id_get_buffer(id, off, sizeof(struct swap_header_v1_2));
if (sw == NULL)
return -1;
id->type_version[0] = '2';
id->type_version[1] = '\0';
volume_id_set_label_raw(id, sw->volume_name, 16);
volume_id_set_label_string(id, sw->volume_name, 16);
volume_id_set_uuid(id, sw->uuid, UUID_DCE);
goto found;
}
}
return -1;
found:
volume_id_set_usage(id, VOLUME_ID_OTHER);
id->type = "swap";
return 0;
}

52
util-linux/volume_id/lsi_raid.c Normal file
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@@ -0,0 +1,52 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct lsi_meta {
uint8_t sig[6];
} __attribute__((packed));
#define LSI_SIGNATURE "$XIDE$"
int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
uint64_t meta_off;
struct lsi_meta *lsi;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x10000)
return -1;
meta_off = ((size / 0x200)-1) * 0x200;
lsi = volume_id_get_buffer(id, off + meta_off, 0x200);
if (lsi == NULL)
return -1;
if (memcmp(lsi->sig, LSI_SIGNATURE, sizeof(LSI_SIGNATURE)-1) != 0)
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "lsi_mega_raid_member";
return 0;
}

76
util-linux/volume_id/luks.c Normal file
View File

@@ -0,0 +1,76 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 W. Michael Petullo <mike@flyn.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
#define SECTOR_SHIFT 9
#define SECTOR_SIZE (1 << SECTOR_SHIFT)
#define LUKS_CIPHERNAME_L 32
#define LUKS_CIPHERMODE_L 32
#define LUKS_HASHSPEC_L 32
#define LUKS_DIGESTSIZE 20
#define LUKS_SALTSIZE 32
#define LUKS_NUMKEYS 8
static const uint8_t LUKS_MAGIC[] = { 'L','U','K','S', 0xba, 0xbe };
#define LUKS_MAGIC_L 6
#define LUKS_PHDR_SIZE (sizeof(struct luks_phdr)/SECTOR_SIZE+1)
#define UUID_STRING_L 40
struct luks_phdr {
uint8_t magic[LUKS_MAGIC_L];
uint16_t version;
uint8_t cipherName[LUKS_CIPHERNAME_L];
uint8_t cipherMode[LUKS_CIPHERMODE_L];
uint8_t hashSpec[LUKS_HASHSPEC_L];
uint32_t payloadOffset;
uint32_t keyBytes;
uint8_t mkDigest[LUKS_DIGESTSIZE];
uint8_t mkDigestSalt[LUKS_SALTSIZE];
uint32_t mkDigestIterations;
uint8_t uuid[UUID_STRING_L];
struct {
uint32_t active;
uint32_t passwordIterations;
uint8_t passwordSalt[LUKS_SALTSIZE];
uint32_t keyMaterialOffset;
uint32_t stripes;
} keyblock[LUKS_NUMKEYS];
};
int volume_id_probe_luks(struct volume_id *id, uint64_t off)
{
struct luks_phdr *header;
header = volume_id_get_buffer(id, off, LUKS_PHDR_SIZE);
if (header == NULL)
return -1;
if (memcmp(header->magic, LUKS_MAGIC, LUKS_MAGIC_L))
return -1;
volume_id_set_usage(id, VOLUME_ID_CRYPTO);
volume_id_set_uuid(id, header->uuid, UUID_DCE_STRING);
id->type = "crypto_LUKS";
return 0;
}

91
util-linux/volume_id/lvm.c Normal file
View File

@@ -0,0 +1,91 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct lvm1_super_block {
uint8_t id[2];
} __attribute__((packed));
struct lvm2_super_block {
uint8_t id[8];
uint64_t sector_xl;
uint32_t crc_xl;
uint32_t offset_xl;
uint8_t type[8];
} __attribute__((packed));
#define LVM1_SB_OFF 0x400
#define LVM1_MAGIC "HM"
int volume_id_probe_lvm1(struct volume_id *id, uint64_t off)
{
const uint8_t *buf;
struct lvm1_super_block *lvm;
dbg("probing at offset 0x%llx", (unsigned long long) off);
buf = volume_id_get_buffer(id, off + LVM1_SB_OFF, 0x800);
if (buf == NULL)
return -1;
lvm = (struct lvm1_super_block *) buf;
if (memcmp(lvm->id, LVM1_MAGIC, 2) != 0)
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "LVM1_member";
return 0;
}
#define LVM2_LABEL_ID "LABELONE"
#define LVM2LABEL_SCAN_SECTORS 4
int volume_id_probe_lvm2(struct volume_id *id, uint64_t off)
{
const uint8_t *buf;
unsigned soff;
struct lvm2_super_block *lvm;
dbg("probing at offset 0x%llx", (unsigned long long) off);
buf = volume_id_get_buffer(id, off, LVM2LABEL_SCAN_SECTORS * 0x200);
if (buf == NULL)
return -1;
for (soff = 0; soff < LVM2LABEL_SCAN_SECTORS * 0x200; soff += 0x200) {
lvm = (struct lvm2_super_block *) &buf[soff];
if (memcmp(lvm->id, LVM2_LABEL_ID, 8) == 0)
goto found;
}
return -1;
found:
memcpy(id->type_version, lvm->type, 8);
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "LVM2_member";
return 0;
}

125
util-linux/volume_id/mac.c Normal file
View File

@@ -0,0 +1,125 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct mac_driver_desc {
uint8_t signature[2];
uint16_t block_size;
uint32_t block_count;
} __attribute__((__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];
} __attribute__((__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 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 (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, 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;
}

76
util-linux/volume_id/minix.c Normal file
View File

@@ -0,0 +1,76 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct minix_super_block
{
uint16_t s_ninodes;
uint16_t s_nzones;
uint16_t s_imap_blocks;
uint16_t s_zmap_blocks;
uint16_t s_firstdatazone;
uint16_t s_log_zone_size;
uint32_t s_max_size;
uint16_t s_magic;
uint16_t s_state;
uint32_t s_zones;
} __attribute__((__packed__));
#define MINIX_SUPERBLOCK_OFFSET 0x400
int volume_id_probe_minix(struct volume_id *id, uint64_t off)
{
struct minix_super_block *ms;
dbg("probing at offset 0x%llx", (unsigned long long) off);
ms = volume_id_get_buffer(id, off + MINIX_SUPERBLOCK_OFFSET, 0x200);
if (ms == NULL)
return -1;
if (le16_to_cpu(ms->s_magic) == 0x137f) {
id->type_version[0] = '1';
goto found;
}
if (le16_to_cpu(ms->s_magic) == 0x1387) {
id->type_version[0] = '1';
goto found;
}
if (le16_to_cpu(ms->s_magic) == 0x2468) {
id->type_version[0] = '2';
goto found;
}
if (le16_to_cpu(ms->s_magic) == 0x2478) {
id->type_version[0] = '2';
goto found;
}
return -1;
found:
id->type_version[1] = '\0';
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "minix";
return 0;
}

196
util-linux/volume_id/msdos.c Normal file
View File

@@ -0,0 +1,196 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.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;
} __attribute__((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 (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;
}

193
util-linux/volume_id/ntfs.c Normal file
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@@ -0,0 +1,193 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct ntfs_super_block {
uint8_t jump[3];
uint8_t oem_id[8];
uint16_t bytes_per_sector;
uint8_t sectors_per_cluster;
uint16_t reserved_sectors;
uint8_t fats;
uint16_t root_entries;
uint16_t sectors;
uint8_t media_type;
uint16_t sectors_per_fat;
uint16_t sectors_per_track;
uint16_t heads;
uint32_t hidden_sectors;
uint32_t large_sectors;
uint16_t unused[2];
uint64_t number_of_sectors;
uint64_t mft_cluster_location;
uint64_t mft_mirror_cluster_location;
int8_t cluster_per_mft_record;
uint8_t reserved1[3];
int8_t cluster_per_index_record;
uint8_t reserved2[3];
uint8_t volume_serial[8];
uint16_t checksum;
} __attribute__((__packed__));
struct master_file_table_record {
uint8_t magic[4];
uint16_t usa_ofs;
uint16_t usa_count;
uint64_t lsn;
uint16_t sequence_number;
uint16_t link_count;
uint16_t attrs_offset;
uint16_t flags;
uint32_t bytes_in_use;
uint32_t bytes_allocated;
} __attribute__((__packed__));
struct file_attribute {
uint32_t type;
uint32_t len;
uint8_t non_resident;
uint8_t name_len;
uint16_t name_offset;
uint16_t flags;
uint16_t instance;
uint32_t value_len;
uint16_t value_offset;
} __attribute__((__packed__));
struct volume_info {
uint64_t reserved;
uint8_t major_ver;
uint8_t minor_ver;
} __attribute__((__packed__));
#define MFT_RECORD_VOLUME 3
#define MFT_RECORD_ATTR_VOLUME_NAME 0x60
#define MFT_RECORD_ATTR_VOLUME_INFO 0x70
#define MFT_RECORD_ATTR_OBJECT_ID 0x40
#define MFT_RECORD_ATTR_END 0xffffffffu
int volume_id_probe_ntfs(struct volume_id *id, uint64_t off)
{
unsigned sector_size;
unsigned cluster_size;
uint64_t mft_cluster;
uint64_t mft_off;
unsigned mft_record_size;
unsigned attr_type;
unsigned attr_off;
unsigned attr_len;
unsigned val_off;
unsigned val_len;
struct master_file_table_record *mftr;
struct ntfs_super_block *ns;
const uint8_t *buf;
const uint8_t *val;
dbg("probing at offset 0x%llx", (unsigned long long) off);
ns = volume_id_get_buffer(id, off, 0x200);
if (ns == NULL)
return -1;
if (memcmp(ns->oem_id, "NTFS", 4) != 0)
return -1;
volume_id_set_uuid(id, ns->volume_serial, UUID_NTFS);
sector_size = le16_to_cpu(ns->bytes_per_sector);
cluster_size = ns->sectors_per_cluster * sector_size;
mft_cluster = le64_to_cpu(ns->mft_cluster_location);
mft_off = mft_cluster * cluster_size;
if (ns->cluster_per_mft_record < 0)
/* size = -log2(mft_record_size); normally 1024 Bytes */
mft_record_size = 1 << -ns->cluster_per_mft_record;
else
mft_record_size = ns->cluster_per_mft_record * cluster_size;
dbg("sectorsize 0x%x", sector_size);
dbg("clustersize 0x%x", cluster_size);
dbg("mftcluster %llu", (unsigned long long) mft_cluster);
dbg("mftoffset 0x%llx", (unsigned long long) mft_off);
dbg("cluster per mft_record %i", ns->cluster_per_mft_record);
dbg("mft record size %i", mft_record_size);
buf = volume_id_get_buffer(id, off + mft_off + (MFT_RECORD_VOLUME * mft_record_size),
mft_record_size);
if (buf == NULL)
goto found;
mftr = (struct master_file_table_record*) buf;
dbg("mftr->magic '%c%c%c%c'", mftr->magic[0], mftr->magic[1], mftr->magic[2], mftr->magic[3]);
if (memcmp(mftr->magic, "FILE", 4) != 0)
goto found;
attr_off = le16_to_cpu(mftr->attrs_offset);
dbg("file $Volume's attributes are at offset %i", attr_off);
while (1) {
struct file_attribute *attr;
attr = (struct file_attribute*) &buf[attr_off];
attr_type = le32_to_cpu(attr->type);
attr_len = le16_to_cpu(attr->len);
val_off = le16_to_cpu(attr->value_offset);
val_len = le32_to_cpu(attr->value_len);
attr_off += attr_len;
if (attr_len == 0)
break;
if (attr_off >= mft_record_size)
break;
if (attr_type == MFT_RECORD_ATTR_END)
break;
dbg("found attribute type 0x%x, len %i, at offset %i",
attr_type, attr_len, attr_off);
if (attr_type == MFT_RECORD_ATTR_VOLUME_INFO) {
struct volume_info *info;
dbg("found info, len %i", val_len);
info = (struct volume_info*) (((uint8_t *) attr) + val_off);
snprintf(id->type_version, sizeof(id->type_version)-1,
"%u.%u", info->major_ver, info->minor_ver);
}
if (attr_type == MFT_RECORD_ATTR_VOLUME_NAME) {
dbg("found label, len %i", val_len);
if (val_len > VOLUME_ID_LABEL_SIZE)
val_len = VOLUME_ID_LABEL_SIZE;
val = ((uint8_t *) attr) + val_off;
volume_id_set_label_raw(id, val, val_len);
volume_id_set_label_unicode16(id, val, LE, val_len);
}
}
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "ntfs";
return 0;
}

56
util-linux/volume_id/nvidia_raid.c Normal file
View File

@@ -0,0 +1,56 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct nvidia_meta {
uint8_t vendor[8];
uint32_t size;
uint32_t chksum;
uint16_t version;
} __attribute__((packed));
#define NVIDIA_SIGNATURE "NVIDIA"
int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
uint64_t meta_off;
struct nvidia_meta *nv;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x10000)
return -1;
meta_off = ((size / 0x200)-2) * 0x200;
nv = volume_id_get_buffer(id, off + meta_off, 0x200);
if (nv == NULL)
return -1;
if (memcmp(nv->vendor, NVIDIA_SIGNATURE, sizeof(NVIDIA_SIGNATURE)-1) != 0)
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
snprintf(id->type_version, sizeof(id->type_version)-1, "%u", le16_to_cpu(nv->version));
id->type = "nvidia_raid_member";
return 0;
}

105
util-linux/volume_id/ocfs2.c Normal file
View File

@@ -0,0 +1,105 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) Andre Masella <andre@masella.no-ip.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
/* All these values are taken from ocfs2-tools's ocfs2_fs.h */
#define OCFS2_VOL_UUID_LEN 16
#define OCFS2_MAX_VOL_LABEL_LEN 64
#define OCFS2_SUPERBLOCK_OFFSET 0x2000
/* This is the superblock. The OCFS2 header files have structs in structs.
This is one has been simplified since we only care about the superblock.
*/
struct ocfs2_super_block {
uint8_t i_signature[8]; /* Signature for validation */
uint32_t i_generation; /* Generation number */
int16_t i_suballoc_slot; /* Slot suballocator this inode belongs to */
uint16_t i_suballoc_bit; /* Bit offset in suballocator block group */
uint32_t i_reserved0;
uint32_t i_clusters; /* Cluster count */
uint32_t i_uid; /* Owner UID */
uint32_t i_gid; /* Owning GID */
uint64_t i_size; /* Size in bytes */
uint16_t i_mode; /* File mode */
uint16_t i_links_count; /* Links count */
uint32_t i_flags; /* File flags */
uint64_t i_atime; /* Access time */
uint64_t i_ctime; /* Creation time */
uint64_t i_mtime; /* Modification time */
uint64_t i_dtime; /* Deletion time */
uint64_t i_blkno; /* Offset on disk, in blocks */
uint64_t i_last_eb_blk; /* Pointer to last extent block */
uint32_t i_fs_generation; /* Generation per fs-instance */
uint32_t i_atime_nsec;
uint32_t i_ctime_nsec;
uint32_t i_mtime_nsec;
uint64_t i_reserved1[9];
uint64_t i_pad1; /* Generic way to refer to this 64bit union */
/* Normally there is a union of the different block types, but we only care about the superblock. */
uint16_t s_major_rev_level;
uint16_t s_minor_rev_level;
uint16_t s_mnt_count;
int16_t s_max_mnt_count;
uint16_t s_state; /* File system state */
uint16_t s_errors; /* Behaviour when detecting errors */
uint32_t s_checkinterval; /* Max time between checks */
uint64_t s_lastcheck; /* Time of last check */
uint32_t s_creator_os; /* OS */
uint32_t s_feature_compat; /* Compatible feature set */
uint32_t s_feature_incompat; /* Incompatible feature set */
uint32_t s_feature_ro_compat; /* Readonly-compatible feature set */
uint64_t s_root_blkno; /* Offset, in blocks, of root directory dinode */
uint64_t s_system_dir_blkno; /* Offset, in blocks, of system directory dinode */
uint32_t s_blocksize_bits; /* Blocksize for this fs */
uint32_t s_clustersize_bits; /* Clustersize for this fs */
uint16_t s_max_slots; /* Max number of simultaneous mounts before tunefs required */
uint16_t s_reserved1;
uint32_t s_reserved2;
uint64_t s_first_cluster_group; /* Block offset of 1st cluster group header */
uint8_t s_label[OCFS2_MAX_VOL_LABEL_LEN]; /* Label for mounting, etc. */
uint8_t s_uuid[OCFS2_VOL_UUID_LEN]; /* 128-bit uuid */
} __attribute__((__packed__));
int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off)
{
struct ocfs2_super_block *os;
dbg("probing at offset 0x%llx", (unsigned long long) off);
os = volume_id_get_buffer(id, off + OCFS2_SUPERBLOCK_OFFSET, 0x200);
if (os == NULL)
return -1;
if (memcmp(os->i_signature, "OCFSV2", 6) != 0) {
return -1;
}
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
volume_id_set_label_raw(id, os->s_label, OCFS2_MAX_VOL_LABEL_LEN < VOLUME_ID_LABEL_SIZE ?
OCFS2_MAX_VOL_LABEL_LEN : VOLUME_ID_LABEL_SIZE);
volume_id_set_label_string(id, os->s_label, OCFS2_MAX_VOL_LABEL_LEN < VOLUME_ID_LABEL_SIZE ?
OCFS2_MAX_VOL_LABEL_LEN : VOLUME_ID_LABEL_SIZE);
volume_id_set_uuid(id, os->s_uuid, UUID_DCE);
id->type = "ocfs2";
return 0;
}

63
util-linux/volume_id/promise_raid.c Normal file
View File

@@ -0,0 +1,63 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct promise_meta {
uint8_t sig[24];
} __attribute__((packed));
#define PDC_CONFIG_OFF 0x1200
#define PDC_SIGNATURE "Promise Technology, Inc."
int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
static const unsigned short sectors[] = {
63, 255, 256, 16, 399
};
struct promise_meta *pdc;
unsigned i;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x40000)
return -1;
for (i = 0; i < ARRAY_SIZE(sectors); i++) {
uint64_t meta_off;
meta_off = ((size / 0x200) - sectors[i]) * 0x200;
pdc = volume_id_get_buffer(id, off + meta_off, 0x200);
if (pdc == NULL)
return -1;
if (memcmp(pdc->sig, PDC_SIGNATURE, sizeof(PDC_SIGNATURE)-1) == 0)
goto found;
}
return -1;
found:
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "promise_fasttrack_raid_member";
return 0;
}

105
util-linux/volume_id/reiserfs.c Normal file
View File

@@ -0,0 +1,105 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
* Copyright (C) 2005 Tobias Klauser <tklauser@access.unizh.ch>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct reiserfs_super_block {
uint32_t blocks_count;
uint32_t free_blocks;
uint32_t root_block;
uint32_t journal_block;
uint32_t journal_dev;
uint32_t orig_journal_size;
uint32_t dummy2[5];
uint16_t blocksize;
uint16_t dummy3[3];
uint8_t magic[12];
uint32_t dummy4[5];
uint8_t uuid[16];
uint8_t label[16];
} __attribute__((__packed__));
struct reiser4_super_block {
uint8_t magic[16];
uint16_t dummy[2];
uint8_t uuid[16];
uint8_t label[16];
uint64_t dummy2;
} __attribute__((__packed__));
#define REISERFS1_SUPERBLOCK_OFFSET 0x2000
#define REISERFS_SUPERBLOCK_OFFSET 0x10000
int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off)
{
struct reiserfs_super_block *rs;
struct reiser4_super_block *rs4;
dbg("probing at offset 0x%llx", (unsigned long long) off);
rs = volume_id_get_buffer(id, off + REISERFS_SUPERBLOCK_OFFSET, 0x200);
if (rs == NULL)
return -1;
if (memcmp(rs->magic, "ReIsErFs", 8) == 0) {
strcpy(id->type_version, "3.5");
goto found;
}
if (memcmp(rs->magic, "ReIsEr2Fs", 9) == 0) {
strcpy(id->type_version, "3.6");
goto found_label;
}
if (memcmp(rs->magic, "ReIsEr3Fs", 9) == 0) {
strcpy(id->type_version, "JR");
goto found_label;
}
rs4 = (struct reiser4_super_block *) rs;
if (memcmp(rs4->magic, "ReIsEr4", 7) == 0) {
strcpy(id->type_version, "4");
volume_id_set_label_raw(id, rs4->label, 16);
volume_id_set_label_string(id, rs4->label, 16);
volume_id_set_uuid(id, rs4->uuid, UUID_DCE);
goto found;
}
rs = volume_id_get_buffer(id, off + REISERFS1_SUPERBLOCK_OFFSET, 0x200);
if (rs == NULL)
return -1;
if (memcmp(rs->magic, "ReIsErFs", 8) == 0) {
strcpy(id->type_version, "3.5");
goto found;
}
return -1;
found_label:
volume_id_set_label_raw(id, rs->label, 16);
volume_id_set_label_string(id, rs->label, 16);
volume_id_set_uuid(id, rs->uuid, UUID_DCE);
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "reiserfs";
return 0;
}

54
util-linux/volume_id/romfs.c Normal file
View File

@@ -0,0 +1,54 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct romfs_super {
uint8_t magic[8];
uint32_t size;
uint32_t checksum;
uint8_t name[0];
} __attribute__((__packed__));
int volume_id_probe_romfs(struct volume_id *id, uint64_t off)
{
struct romfs_super *rfs;
dbg("probing at offset 0x%llx", (unsigned long long) off);
rfs = volume_id_get_buffer(id, off, 0x200);
if (rfs == NULL)
return -1;
if (memcmp(rfs->magic, "-rom1fs-", 4) == 0) {
size_t len = strlen((char *)rfs->name);
if (len) {
volume_id_set_label_raw(id, rfs->name, len);
volume_id_set_label_string(id, rfs->name, len);
}
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "romfs";
return 0;
}
return -1;
}

69
util-linux/volume_id/silicon_raid.c Normal file
View File

@@ -0,0 +1,69 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct silicon_meta {
uint8_t unknown0[0x2E];
uint8_t ascii_version[0x36 - 0x2E];
uint8_t diskname[0x56 - 0x36];
uint8_t unknown1[0x60 - 0x56];
uint32_t magic;
uint32_t unknown1a[0x6C - 0x64];
uint32_t array_sectors_low;
uint32_t array_sectors_high;
uint8_t unknown2[0x78 - 0x74];
uint32_t thisdisk_sectors;
uint8_t unknown3[0x100 - 0x7C];
uint8_t unknown4[0x104 - 0x100];
uint16_t product_id;
uint16_t vendor_id;
uint16_t minor_ver;
uint16_t major_ver;
} __attribute__((packed));
#define SILICON_MAGIC 0x2F000000
int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
uint64_t meta_off;
struct silicon_meta *sil;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x10000)
return -1;
meta_off = ((size / 0x200)-1) * 0x200;
sil = volume_id_get_buffer(id, off + meta_off, 0x200);
if (sil == NULL)
return -1;
if (sil->magic != cpu_to_le32(SILICON_MAGIC))
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u",
le16_to_cpu(sil->major_ver), le16_to_cpu(sil->minor_ver));
id->type = "silicon_medley_raid_member";
return 0;
}

125
util-linux/volume_id/sysv.c Normal file
View File

@@ -0,0 +1,125 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
#define SYSV_NICINOD 100
#define SYSV_NICFREE 50
struct sysv_super
{
uint16_t s_isize;
uint16_t s_pad0;
uint32_t s_fsize;
uint16_t s_nfree;
uint16_t s_pad1;
uint32_t s_free[SYSV_NICFREE];
uint16_t s_ninode;
uint16_t s_pad2;
uint16_t s_inode[SYSV_NICINOD];
uint8_t s_flock;
uint8_t s_ilock;
uint8_t s_fmod;
uint8_t s_ronly;
uint32_t s_time;
uint16_t s_dinfo[4];
uint32_t s_tfree;
uint16_t s_tinode;
uint16_t s_pad3;
uint8_t s_fname[6];
uint8_t s_fpack[6];
uint32_t s_fill[12];
uint32_t s_state;
uint32_t s_magic;
uint32_t s_type;
} __attribute__((__packed__));
#define XENIX_NICINOD 100
#define XENIX_NICFREE 100
struct xenix_super {
uint16_t s_isize;
uint32_t s_fsize;
uint16_t s_nfree;
uint32_t s_free[XENIX_NICFREE];
uint16_t s_ninode;
uint16_t s_inode[XENIX_NICINOD];
uint8_t s_flock;
uint8_t s_ilock;
uint8_t s_fmod;
uint8_t s_ronly;
uint32_t s_time;
uint32_t s_tfree;
uint16_t s_tinode;
uint16_t s_dinfo[4];
uint8_t s_fname[6];
uint8_t s_fpack[6];
uint8_t s_clean;
uint8_t s_fill[371];
uint32_t s_magic;
uint32_t s_type;
} __attribute__((__packed__));
#define SYSV_SUPERBLOCK_BLOCK 0x01
#define SYSV_MAGIC 0xfd187e20
#define XENIX_SUPERBLOCK_BLOCK 0x18
#define XENIX_MAGIC 0x2b5544
#define SYSV_MAX_BLOCKSIZE 0x800
int volume_id_probe_sysv(struct volume_id *id, uint64_t off)
{
struct sysv_super *vs;
struct xenix_super *xs;
unsigned boff;
dbg("probing at offset 0x%llx", (unsigned long long) off);
for (boff = 0x200; boff <= SYSV_MAX_BLOCKSIZE; boff <<= 1) {
vs = volume_id_get_buffer(id, off + (boff * SYSV_SUPERBLOCK_BLOCK), 0x200);
if (vs == NULL)
return -1;
if (vs->s_magic == cpu_to_le32(SYSV_MAGIC) || vs->s_magic == cpu_to_be32(SYSV_MAGIC)) {
volume_id_set_label_raw(id, vs->s_fname, 6);
volume_id_set_label_string(id, vs->s_fname, 6);
id->type = "sysv";
goto found;
}
}
for (boff = 0x200; boff <= SYSV_MAX_BLOCKSIZE; boff <<= 1) {
xs = volume_id_get_buffer(id, off + (boff + XENIX_SUPERBLOCK_BLOCK), 0x200);
if (xs == NULL)
return -1;
if (xs->s_magic == cpu_to_le32(XENIX_MAGIC) || xs->s_magic == cpu_to_be32(XENIX_MAGIC)) {
volume_id_set_label_raw(id, xs->s_fname, 6);
volume_id_set_label_string(id, xs->s_fname, 6);
id->type = "xenix";
goto found;
}
}
return -1;
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
return 0;
}

172
util-linux/volume_id/udf.c Normal file
View File

@@ -0,0 +1,172 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct volume_descriptor {
struct descriptor_tag {
uint16_t id;
uint16_t version;
uint8_t checksum;
uint8_t reserved;
uint16_t serial;
uint16_t crc;
uint16_t crc_len;
uint32_t location;
} __attribute__((__packed__)) tag;
union {
struct anchor_descriptor {
uint32_t length;
uint32_t location;
} __attribute__((__packed__)) anchor;
struct primary_descriptor {
uint32_t seq_num;
uint32_t desc_num;
struct dstring {
uint8_t clen;
uint8_t c[31];
} __attribute__((__packed__)) ident;
} __attribute__((__packed__)) primary;
} __attribute__((__packed__)) type;
} __attribute__((__packed__));
struct volume_structure_descriptor {
uint8_t type;
uint8_t id[5];
uint8_t version;
} __attribute__((__packed__));
#define UDF_VSD_OFFSET 0x8000
int volume_id_probe_udf(struct volume_id *id, uint64_t off)
{
struct volume_descriptor *vd;
struct volume_structure_descriptor *vsd;
unsigned bs;
unsigned b;
unsigned type;
unsigned count;
unsigned loc;
unsigned clen;
dbg("probing at offset 0x%llx", (unsigned long long) off);
vsd = volume_id_get_buffer(id, off + UDF_VSD_OFFSET, 0x200);
if (vsd == NULL)
return -1;
if (memcmp(vsd->id, "NSR02", 5) == 0)
goto blocksize;
if (memcmp(vsd->id, "NSR03", 5) == 0)
goto blocksize;
if (memcmp(vsd->id, "BEA01", 5) == 0)
goto blocksize;
if (memcmp(vsd->id, "BOOT2", 5) == 0)
goto blocksize;
if (memcmp(vsd->id, "CD001", 5) == 0)
goto blocksize;
if (memcmp(vsd->id, "CDW02", 5) == 0)
goto blocksize;
if (memcmp(vsd->id, "TEA03", 5) == 0)
goto blocksize;
return -1;
blocksize:
/* search the next VSD to get the logical block size of the volume */
for (bs = 0x800; bs < 0x8000; bs += 0x800) {
vsd = volume_id_get_buffer(id, off + UDF_VSD_OFFSET + bs, 0x800);
if (vsd == NULL)
return -1;
dbg("test for blocksize: 0x%x", bs);
if (vsd->id[0] != '\0')
goto nsr;
}
return -1;
nsr:
/* search the list of VSDs for a NSR descriptor */
for (b = 0; b < 64; b++) {
vsd = volume_id_get_buffer(id, off + UDF_VSD_OFFSET + (b * bs), 0x800);
if (vsd == NULL)
return -1;
dbg("vsd: %c%c%c%c%c",
vsd->id[0], vsd->id[1], vsd->id[2], vsd->id[3], vsd->id[4]);
if (vsd->id[0] == '\0')
return -1;
if (memcmp(vsd->id, "NSR02", 5) == 0)
goto anchor;
if (memcmp(vsd->id, "NSR03", 5) == 0)
goto anchor;
}
return -1;
anchor:
/* read anchor volume descriptor */
vd = volume_id_get_buffer(id, off + (256 * bs), 0x200);
if (vd == NULL)
return -1;
type = le16_to_cpu(vd->tag.id);
if (type != 2) /* TAG_ID_AVDP */
goto found;
/* get desriptor list address and block count */
count = le32_to_cpu(vd->type.anchor.length) / bs;
loc = le32_to_cpu(vd->type.anchor.location);
dbg("0x%x descriptors starting at logical secor 0x%x", count, loc);
/* pick the primary descriptor from the list */
for (b = 0; b < count; b++) {
vd = volume_id_get_buffer(id, off + ((loc + b) * bs), 0x200);
if (vd == NULL)
return -1;
type = le16_to_cpu(vd->tag.id);
dbg("descriptor type %i", type);
/* check validity */
if (type == 0)
goto found;
if (le32_to_cpu(vd->tag.location) != loc + b)
goto found;
if (type == 1) /* TAG_ID_PVD */
goto pvd;
}
goto found;
pvd:
volume_id_set_label_raw(id, &(vd->type.primary.ident.clen), 32);
clen = vd->type.primary.ident.clen;
dbg("label string charsize=%i bit", clen);
if (clen == 8)
volume_id_set_label_string(id, vd->type.primary.ident.c, 31);
else if (clen == 16)
volume_id_set_label_unicode16(id, vd->type.primary.ident.c, BE, 31);
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "udf";
return 0;
}

206
util-linux/volume_id/ufs.c Normal file
View File

@@ -0,0 +1,206 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct ufs_super_block {
uint32_t fs_link;
uint32_t fs_rlink;
uint32_t fs_sblkno;
uint32_t fs_cblkno;
uint32_t fs_iblkno;
uint32_t fs_dblkno;
uint32_t fs_cgoffset;
uint32_t fs_cgmask;
uint32_t fs_time;
uint32_t fs_size;
uint32_t fs_dsize;
uint32_t fs_ncg;
uint32_t fs_bsize;
uint32_t fs_fsize;
uint32_t fs_frag;
uint32_t fs_minfree;
uint32_t fs_rotdelay;
uint32_t fs_rps;
uint32_t fs_bmask;
uint32_t fs_fmask;
uint32_t fs_bshift;
uint32_t fs_fshift;
uint32_t fs_maxcontig;
uint32_t fs_maxbpg;
uint32_t fs_fragshift;
uint32_t fs_fsbtodb;
uint32_t fs_sbsize;
uint32_t fs_csmask;
uint32_t fs_csshift;
uint32_t fs_nindir;
uint32_t fs_inopb;
uint32_t fs_nspf;
uint32_t fs_optim;
uint32_t fs_npsect_state;
uint32_t fs_interleave;
uint32_t fs_trackskew;
uint32_t fs_id[2];
uint32_t fs_csaddr;
uint32_t fs_cssize;
uint32_t fs_cgsize;
uint32_t fs_ntrak;
uint32_t fs_nsect;
uint32_t fs_spc;
uint32_t fs_ncyl;
uint32_t fs_cpg;
uint32_t fs_ipg;
uint32_t fs_fpg;
struct ufs_csum {
uint32_t cs_ndir;
uint32_t cs_nbfree;
uint32_t cs_nifree;
uint32_t cs_nffree;
} __attribute__((__packed__)) fs_cstotal;
int8_t fs_fmod;
int8_t fs_clean;
int8_t fs_ronly;
int8_t fs_flags;
union {
struct {
int8_t fs_fsmnt[512];
uint32_t fs_cgrotor;
uint32_t fs_csp[31];
uint32_t fs_maxcluster;
uint32_t fs_cpc;
uint16_t fs_opostbl[16][8];
} __attribute__((__packed__)) fs_u1;
struct {
int8_t fs_fsmnt[468];
uint8_t fs_volname[32];
uint64_t fs_swuid;
int32_t fs_pad;
uint32_t fs_cgrotor;
uint32_t fs_ocsp[28];
uint32_t fs_contigdirs;
uint32_t fs_csp;
uint32_t fs_maxcluster;
uint32_t fs_active;
int32_t fs_old_cpc;
int32_t fs_maxbsize;
int64_t fs_sparecon64[17];
int64_t fs_sblockloc;
struct ufs2_csum_total {
uint64_t cs_ndir;
uint64_t cs_nbfree;
uint64_t cs_nifree;
uint64_t cs_nffree;
uint64_t cs_numclusters;
uint64_t cs_spare[3];
} __attribute__((__packed__)) fs_cstotal;
struct ufs_timeval {
int32_t tv_sec;
int32_t tv_usec;
} __attribute__((__packed__)) fs_time;
int64_t fs_size;
int64_t fs_dsize;
uint64_t fs_csaddr;
int64_t fs_pendingblocks;
int32_t fs_pendinginodes;
} __attribute__((__packed__)) fs_u2;
} fs_u11;
union {
struct {
int32_t fs_sparecon[53];
int32_t fs_reclaim;
int32_t fs_sparecon2[1];
int32_t fs_state;
uint32_t fs_qbmask[2];
uint32_t fs_qfmask[2];
} __attribute__((__packed__)) fs_sun;
struct {
int32_t fs_sparecon[53];
int32_t fs_reclaim;
int32_t fs_sparecon2[1];
uint32_t fs_npsect;
uint32_t fs_qbmask[2];
uint32_t fs_qfmask[2];
} __attribute__((__packed__)) fs_sunx86;
struct {
int32_t fs_sparecon[50];
int32_t fs_contigsumsize;
int32_t fs_maxsymlinklen;
int32_t fs_inodefmt;
uint32_t fs_maxfilesize[2];
uint32_t fs_qbmask[2];
uint32_t fs_qfmask[2];
int32_t fs_state;
} __attribute__((__packed__)) fs_44;
} fs_u2;
int32_t fs_postblformat;
int32_t fs_nrpos;
int32_t fs_postbloff;
int32_t fs_rotbloff;
uint32_t fs_magic;
uint8_t fs_space[1];
} __attribute__((__packed__));
#define UFS_MAGIC 0x00011954
#define UFS2_MAGIC 0x19540119
#define UFS_MAGIC_FEA 0x00195612
#define UFS_MAGIC_LFN 0x00095014
int volume_id_probe_ufs(struct volume_id *id, uint64_t off)
{
static const short offsets[] = { 0, 8, 64, 256 };
uint32_t magic;
int i;
struct ufs_super_block *ufs;
dbg("probing at offset 0x%llx", (unsigned long long) off);
for (i = 0; i < ARRAY_SIZE(offsets); i++) {
ufs = volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
if (ufs == NULL)
return -1;
dbg("offset 0x%x", offsets[i] * 0x400);
magic = ufs->fs_magic;
if ((magic == cpu_to_be32(UFS_MAGIC))
|| (magic == cpu_to_be32(UFS2_MAGIC))
|| (magic == cpu_to_be32(UFS_MAGIC_FEA))
|| (magic == cpu_to_be32(UFS_MAGIC_LFN))
) {
dbg("magic 0x%08x(be)", magic);
goto found;
}
if ((magic == cpu_to_le32(UFS_MAGIC))
|| (magic == cpu_to_le32(UFS2_MAGIC))
|| (magic == cpu_to_le32(UFS_MAGIC_FEA))
|| (magic == cpu_to_le32(UFS_MAGIC_LFN))
) {
dbg("magic 0x%08x(le)", magic);
goto found;
}
}
return -1;
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "ufs";
return 0;
}

260
util-linux/volume_id/util.c Normal file
View File

@@ -0,0 +1,260 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count)
{
unsigned i, j;
uint16_t c;
j = 0;
for (i = 0; i + 2 <= count; i += 2) {
if (endianess == LE)
c = (buf[i+1] << 8) | buf[i];
else
c = (buf[i] << 8) | buf[i+1];
if (c == 0) {
str[j] = '\0';
break;
} else if (c < 0x80) {
if (j+1 >= len)
break;
str[j++] = (uint8_t) c;
} else if (c < 0x800) {
if (j+2 >= len)
break;
str[j++] = (uint8_t) (0xc0 | (c >> 6));
str[j++] = (uint8_t) (0x80 | (c & 0x3f));
} else {
if (j+3 >= len)
break;
str[j++] = (uint8_t) (0xe0 | (c >> 12));
str[j++] = (uint8_t) (0x80 | ((c >> 6) & 0x3f));
str[j++] = (uint8_t) (0x80 | (c & 0x3f));
}
}
str[j] = '\0';
}
static const char *usage_to_string(enum volume_id_usage usage_id)
{
switch (usage_id) {
case VOLUME_ID_FILESYSTEM:
return "filesystem";
case VOLUME_ID_PARTITIONTABLE:
return "partitiontable";
case VOLUME_ID_OTHER:
return "other";
case VOLUME_ID_RAID:
return "raid";
case VOLUME_ID_DISKLABEL:
return "disklabel";
case VOLUME_ID_CRYPTO:
return "crypto";
case VOLUME_ID_UNPROBED:
return "unprobed";
case VOLUME_ID_UNUSED:
return "unused";
}
return NULL;
}
void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id)
{
part->usage_id = usage_id;
part->usage = usage_to_string(usage_id);
}
void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id)
{
id->usage_id = usage_id;
id->usage = usage_to_string(usage_id);
}
void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count)
{
memcpy(id->label_raw, buf, count);
id->label_raw_len = count;
}
#ifdef NOT_NEEDED
static size_t strnlen(const char *s, size_t maxlen)
{
size_t i;
if (!maxlen) return 0;
if (!s) return 0;
for (i = 0; *s && i < maxlen; ++s) ++i;
return i;
}
#endif
void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count)
{
unsigned i;
memcpy(id->label, buf, count);
/* remove trailing whitespace */
i = strnlen(id->label, count);
while (i--) {
if (!isspace(id->label[i]))
break;
}
id->label[i+1] = '\0';
}
void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count)
{
volume_id_set_unicode16(id->label, sizeof(id->label), buf, endianess, count);
}
void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format)
{
unsigned i;
unsigned count = 0;
switch(format) {
case UUID_DOS:
count = 4;
break;
case UUID_NTFS:
case UUID_HFS:
count = 8;
break;
case UUID_DCE:
count = 16;
break;
case UUID_DCE_STRING:
count = 36;
break;
}
memcpy(id->uuid_raw, buf, count);
id->uuid_raw_len = count;
/* if set, create string in the same format, the native platform uses */
for (i = 0; i < count; i++)
if (buf[i] != 0)
goto set;
return;
set:
switch(format) {
case UUID_DOS:
sprintf(id->uuid, "%02X%02X-%02X%02X",
buf[3], buf[2], buf[1], buf[0]);
break;
case UUID_NTFS:
sprintf(id->uuid,"%02X%02X%02X%02X%02X%02X%02X%02X",
buf[7], buf[6], buf[5], buf[4],
buf[3], buf[2], buf[1], buf[0]);
break;
case UUID_HFS:
sprintf(id->uuid,"%02X%02X%02X%02X%02X%02X%02X%02X",
buf[0], buf[1], buf[2], buf[3],
buf[4], buf[5], buf[6], buf[7]);
break;
case UUID_DCE:
sprintf(id->uuid,
"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
buf[0], buf[1], buf[2], buf[3],
buf[4], buf[5],
buf[6], buf[7],
buf[8], buf[9],
buf[10], buf[11], buf[12], buf[13], buf[14],buf[15]);
break;
case UUID_DCE_STRING:
memcpy(id->uuid, buf, count);
id->uuid[count] = '\0';
break;
}
}
void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len)
{
ssize_t buf_len;
dbg("get buffer off 0x%llx(%llu), len 0x%zx", (unsigned long long) off, (unsigned long long) off, len);
/* check if requested area fits in superblock buffer */
if (off + len <= SB_BUFFER_SIZE) {
if (id->sbbuf == NULL) {
id->sbbuf = xmalloc(SB_BUFFER_SIZE);
}
/* check if we need to read */
if ((off + len) > id->sbbuf_len) {
dbg("read sbbuf len:0x%llx", (unsigned long long) (off + len));
xlseek(id->fd, 0, SEEK_SET);
buf_len = full_read(id->fd, id->sbbuf, off + len);
if (buf_len < 0) {
dbg("read failed (%s)", strerror(errno));
return NULL;
}
dbg("got 0x%zx (%zi) bytes", buf_len, buf_len);
id->sbbuf_len = buf_len;
if (buf_len < off + len) {
dbg("requested 0x%zx bytes, got only 0x%zx bytes", len, buf_len);
return NULL;
}
}
return &(id->sbbuf[off]);
}
if (len > SEEK_BUFFER_SIZE) {
dbg("seek buffer too small %d", SEEK_BUFFER_SIZE);
return NULL;
}
/* get seek buffer */
if (id->seekbuf == NULL) {
id->seekbuf = xmalloc(SEEK_BUFFER_SIZE);
}
/* check if we need to read */
if ((off < id->seekbuf_off) || ((off + len) > (id->seekbuf_off + id->seekbuf_len))) {
dbg("read seekbuf off:0x%llx len:0x%zx", (unsigned long long) off, len);
xlseek(id->fd, off, SEEK_SET);
buf_len = full_read(id->fd, id->seekbuf, len);
if (buf_len < 0) {
dbg("read failed (%s)", strerror(errno));
return NULL;
}
dbg("got 0x%zx (%zi) bytes", buf_len, buf_len);
id->seekbuf_off = off;
id->seekbuf_len = buf_len;
if (buf_len < len) {
dbg("requested 0x%zx bytes, got only 0x%zx bytes", len, buf_len);
return NULL;
}
}
return &(id->seekbuf[off - id->seekbuf_off]);
}
void volume_id_free_buffer(struct volume_id *id)
{
free(id->sbbuf);
id->sbbuf = NULL;
id->sbbuf_len = 0;
free(id->seekbuf);
id->seekbuf = NULL;
id->seekbuf_len = 0;
}

68
util-linux/volume_id/via_raid.c Normal file
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@@ -0,0 +1,68 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct via_meta {
uint16_t signature;
uint8_t version_number;
struct via_array {
uint16_t disk_bits;
uint8_t disk_array_ex;
uint32_t capacity_low;
uint32_t capacity_high;
uint32_t serial_checksum;
} __attribute((packed)) array;
uint32_t serial_checksum[8];
uint8_t checksum;
} __attribute__((packed));
#define VIA_SIGNATURE 0xAA55
int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
uint64_t meta_off;
struct via_meta *via;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x10000)
return -1;
meta_off = ((size / 0x200)-1) * 0x200;
via = volume_id_get_buffer(id, off + meta_off, 0x200);
if (via == NULL)
return -1;
if (via->signature != cpu_to_le16(VIA_SIGNATURE))
return -1;
if (via->version_number > 1)
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type_version[0] = '0' + via->version_number;
id->type_version[1] = '\0';
id->type = "via_raid_member";
return 0;
}

214
util-linux/volume_id/volume_id.c Normal file
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@@ -0,0 +1,214 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
typedef int (*raid_probe_fptr)(struct volume_id *id, uint64_t off, uint64_t size);
typedef int (*probe_fptr)(struct volume_id *id, uint64_t off);
static const raid_probe_fptr raid1[] = {
#if ENABLE_FEATURE_VOLUMEID_LINUXRAID
volume_id_probe_linux_raid,
#endif
#if ENABLE_FEATURE_VOLUMEID_ISWRAID
volume_id_probe_intel_software_raid,
#endif
#if ENABLE_FEATURE_VOLUMEID_LSIRAID
volume_id_probe_lsi_mega_raid,
#endif
#if ENABLE_FEATURE_VOLUMEID_VIARAID
volume_id_probe_via_raid,
#endif
#if ENABLE_FEATURE_VOLUMEID_SILICONRAID
volume_id_probe_silicon_medley_raid,
#endif
#if ENABLE_FEATURE_VOLUMEID_NVIDIARAID
volume_id_probe_nvidia_raid,
#endif
#if ENABLE_FEATURE_VOLUMEID_PROMISERAID
volume_id_probe_promise_fasttrack_raid,
#endif
#if ENABLE_FEATURE_VOLUMEID_HIGHPOINTRAID
volume_id_probe_highpoint_45x_raid,
#endif
};
static const probe_fptr raid2[] = {
#if ENABLE_FEATURE_VOLUMEID_LVM
volume_id_probe_lvm1,
volume_id_probe_lvm2,
#endif
#if ENABLE_FEATURE_VOLUMEID_HIGHPOINTRAID
volume_id_probe_highpoint_37x_raid,
#endif
#if ENABLE_FEATURE_VOLUMEID_LUKS
volume_id_probe_luks,
#endif
};
/* signature in the first block, only small buffer needed */
static const probe_fptr fs1[] = {
#if ENABLE_FEATURE_VOLUMEID_FAT
volume_id_probe_vfat,
#endif
#if ENABLE_FEATURE_VOLUMEID_MAC
volume_id_probe_mac_partition_map,
#endif
#if ENABLE_FEATURE_VOLUMEID_XFS
volume_id_probe_xfs,
#endif
};
/* fill buffer with maximum */
static const probe_fptr fs2[] = {
#if ENABLE_FEATURE_VOLUMEID_LINUXSWAP
volume_id_probe_linux_swap,
#endif
#if ENABLE_FEATURE_VOLUMEID_EXT
volume_id_probe_ext,
#endif
#if ENABLE_FEATURE_VOLUMEID_REISERFS
volume_id_probe_reiserfs,
#endif
#if ENABLE_FEATURE_VOLUMEID_JFS
volume_id_probe_jfs,
#endif
#if ENABLE_FEATURE_VOLUMEID_UDF
volume_id_probe_udf,
#endif
#if ENABLE_FEATURE_VOLUMEID_ISO9660
volume_id_probe_iso9660,
#endif
#if ENABLE_FEATURE_VOLUMEID_HFS
volume_id_probe_hfs_hfsplus,
#endif
#if ENABLE_FEATURE_VOLUMEID_UFS
volume_id_probe_ufs,
#endif
#if ENABLE_FEATURE_VOLUMEID_NTFS
volume_id_probe_ntfs,
#endif
#if ENABLE_FEATURE_VOLUMEID_CRAMFS
volume_id_probe_cramfs,
#endif
#if ENABLE_FEATURE_VOLUMEID_ROMFS
volume_id_probe_romfs,
#endif
#if ENABLE_FEATURE_VOLUMEID_HPFS
volume_id_probe_hpfs,
#endif
#if ENABLE_FEATURE_VOLUMEID_SYSV
volume_id_probe_sysv,
#endif
#if ENABLE_FEATURE_VOLUMEID_MINIX
volume_id_probe_minix,
#endif
#if ENABLE_FEATURE_VOLUMEID_OCFS2
volume_id_probe_ocfs2,
#endif
};
int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size)
{
int i;
if (id == NULL)
return -EINVAL;
/* probe for raid first, cause fs probes may be successful on raid members */
if (size) {
for (i = 0; i < ARRAY_SIZE(raid1); i++)
if (raid1[i](id, off, size) == 0)
goto ret;
}
for (i = 0; i < ARRAY_SIZE(raid2); i++)
if (raid2[i](id, off) == 0)
goto ret;
/* signature in the first block, only small buffer needed */
for (i = 0; i < ARRAY_SIZE(fs1); i++)
if (fs1[i](id, off) == 0)
goto ret;
/* fill buffer with maximum */
volume_id_get_buffer(id, 0, SB_BUFFER_SIZE);
for (i = 0; i < ARRAY_SIZE(fs2); i++)
if (fs2[i](id, off) == 0)
goto ret;
return -1;
ret:
/* If the filestystem in recognized, we free the allocated buffers,
otherwise they will stay in place for the possible next probe call */
volume_id_free_buffer(id);
return 0;
}
/* open volume by device node */
struct volume_id *volume_id_open_node(const char *path)
{
struct volume_id *id;
int fd;
fd = xopen(path, O_RDONLY);
id = xzalloc(sizeof(struct volume_id));
id->fd = fd;
///* close fd on device close */
//id->fd_close = 1;
return id;
}
#ifdef UNUSED
/* open volume by major/minor */
struct volume_id *volume_id_open_dev_t(dev_t devt)
{
struct volume_id *id;
char *tmp_node[VOLUME_ID_PATH_MAX];
tmp_node = xasprintf("/dev/.volume_id-%u-%u-%u",
(unsigned)getpid(), (unsigned)major(devt), (unsigned)minor(devt));
/* create temporary node to open block device */
unlink(tmp_node);
if (mknod(tmp_node, (S_IFBLK | 0600), devt) != 0)
bb_perror_msg_and_die("cannot mknod(%s)", tmp_node);
id = volume_id_open_node(tmp_node);
unlink(tmp_node);
free(tmp_node);
return id;
}
#endif
void free_volume_id(struct volume_id *id)
{
if (id == NULL)
return;
//if (id->fd_close != 0) - always true
close(id->fd);
volume_id_free_buffer(id);
free(id->partitions);
free(id);
}

220
util-linux/volume_id/volume_id_internal.h Normal file
View File

@@ -0,0 +1,220 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "libbb.h"
#include "volume_id.h"
#define dbg(...) ((void)0)
/* volume_id.h */
#define VOLUME_ID_VERSION 48
#define VOLUME_ID_LABEL_SIZE 64
#define VOLUME_ID_UUID_SIZE 36
#define VOLUME_ID_FORMAT_SIZE 32
#define VOLUME_ID_PARTITIONS_MAX 256
enum volume_id_usage {
VOLUME_ID_UNUSED,
VOLUME_ID_UNPROBED,
VOLUME_ID_OTHER,
VOLUME_ID_FILESYSTEM,
VOLUME_ID_PARTITIONTABLE,
VOLUME_ID_RAID,
VOLUME_ID_DISKLABEL,
VOLUME_ID_CRYPTO,
};
struct volume_id_partition {
enum volume_id_usage usage_id;
const char *usage;
const char *type;
uint64_t off;
uint64_t len;
uint8_t partition_type_raw;
};
struct volume_id {
uint8_t label_raw[VOLUME_ID_LABEL_SIZE];
size_t label_raw_len;
char label[VOLUME_ID_LABEL_SIZE+1];
uint8_t uuid_raw[VOLUME_ID_UUID_SIZE];
size_t uuid_raw_len;
char uuid[VOLUME_ID_UUID_SIZE+1];
enum volume_id_usage usage_id;
const char *usage;
const char *type;
char type_version[VOLUME_ID_FORMAT_SIZE];
struct volume_id_partition *partitions;
size_t partition_count;
int fd;
uint8_t *sbbuf;
uint8_t *seekbuf;
size_t sbbuf_len;
uint64_t seekbuf_off;
size_t seekbuf_len;
// int fd_close:1;
};
struct volume_id *volume_id_open_node(const char *path);
int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size);
void free_volume_id(struct volume_id *id);
/* util.h */
/* size of superblock buffer, reiserfs block is at 64k */
#define SB_BUFFER_SIZE 0x11000
/* size of seek buffer, FAT cluster is 32k max */
#define SEEK_BUFFER_SIZE 0x10000
#define bswap16(x) (uint16_t) ( \
(((uint16_t)(x) & 0x00ffu) << 8) | \
(((uint16_t)(x) & 0xff00u) >> 8))
#define bswap32(x) (uint32_t) ( \
(((uint32_t)(x) & 0xff000000u) >> 24) | \
(((uint32_t)(x) & 0x00ff0000u) >> 8) | \
(((uint32_t)(x) & 0x0000ff00u) << 8) | \
(((uint32_t)(x) & 0x000000ffu) << 24))
#define bswap64(x) (uint64_t) ( \
(((uint64_t)(x) & 0xff00000000000000ull) >> 56) | \
(((uint64_t)(x) & 0x00ff000000000000ull) >> 40) | \
(((uint64_t)(x) & 0x0000ff0000000000ull) >> 24) | \
(((uint64_t)(x) & 0x000000ff00000000ull) >> 8) | \
(((uint64_t)(x) & 0x00000000ff000000ull) << 8) | \
(((uint64_t)(x) & 0x0000000000ff0000ull) << 24) | \
(((uint64_t)(x) & 0x000000000000ff00ull) << 40) | \
(((uint64_t)(x) & 0x00000000000000ffull) << 56))
#if BB_LITTLE_ENDIAN
#define le16_to_cpu(x) (x)
#define le32_to_cpu(x) (x)
#define le64_to_cpu(x) (x)
#define be16_to_cpu(x) bswap16(x)
#define be32_to_cpu(x) bswap32(x)
#define cpu_to_le16(x) (x)
#define cpu_to_le32(x) (x)
#define cpu_to_be32(x) bswap32(x)
#else
#define le16_to_cpu(x) bswap16(x)
#define le32_to_cpu(x) bswap32(x)
#define le64_to_cpu(x) bswap64(x)
#define be16_to_cpu(x) (x)
#define be32_to_cpu(x) (x)
#define cpu_to_le16(x) bswap16(x)
#define cpu_to_le32(x) bswap32(x)
#define cpu_to_be32(x) (x)
#endif
enum uuid_format {
UUID_DCE_STRING,
UUID_DCE,
UUID_DOS,
UUID_NTFS,
UUID_HFS,
};
enum endian {
LE = 0,
BE = 1
};
void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
void volume_id_free_buffer(struct volume_id *id);
/* Probe routines */
/* RAID */
int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off);
int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size);
int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size);
int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size);
int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size);
int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size);
int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size);
int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size);
int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size);
int volume_id_probe_lvm1(struct volume_id *id, uint64_t off);
int volume_id_probe_lvm2(struct volume_id *id, uint64_t off);
/* FS */
int volume_id_probe_cramfs(struct volume_id *id, uint64_t off);
int volume_id_probe_ext(struct volume_id *id, uint64_t off);
int volume_id_probe_vfat(struct volume_id *id, uint64_t off);
int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off);
int volume_id_probe_hpfs(struct volume_id *id, uint64_t off);
int volume_id_probe_iso9660(struct volume_id *id, uint64_t off);
int volume_id_probe_jfs(struct volume_id *id, uint64_t off);
int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off);
int volume_id_probe_luks(struct volume_id *id, uint64_t off);
int volume_id_probe_mac_partition_map(struct volume_id *id, uint64_t off);
int volume_id_probe_minix(struct volume_id *id, uint64_t off);
int volume_id_probe_msdos_part_table(struct volume_id *id, uint64_t off);
int volume_id_probe_ntfs(struct volume_id *id, uint64_t off);
int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off);
int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off);
int volume_id_probe_romfs(struct volume_id *id, uint64_t off);
int volume_id_probe_sysv(struct volume_id *id, uint64_t off);
int volume_id_probe_udf(struct volume_id *id, uint64_t off);
int volume_id_probe_ufs(struct volume_id *id, uint64_t off);
int volume_id_probe_xfs(struct volume_id *id, uint64_t off);

59
util-linux/volume_id/xfs.c Normal file
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@@ -0,0 +1,59 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct xfs_super_block {
uint8_t magic[4];
uint32_t blocksize;
uint64_t dblocks;
uint64_t rblocks;
uint32_t dummy1[2];
uint8_t uuid[16];
uint32_t dummy2[15];
uint8_t fname[12];
uint32_t dummy3[2];
uint64_t icount;
uint64_t ifree;
uint64_t fdblocks;
} __attribute__((__packed__));
int volume_id_probe_xfs(struct volume_id *id, uint64_t off)
{
struct xfs_super_block *xs;
dbg("probing at offset 0x%llx", (unsigned long long) off);
xs = volume_id_get_buffer(id, off, 0x200);
if (xs == NULL)
return -1;
if (memcmp(xs->magic, "XFSB", 4) != 0)
return -1;
volume_id_set_label_raw(id, xs->fname, 12);
volume_id_set_label_string(id, xs->fname, 12);
volume_id_set_uuid(id, xs->uuid, UUID_DCE);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "xfs";
return 0;
}