Every filesystem has its own subdirectory.
The IBM dasd label reading is included into volume_id.
override CFLAGS+=-D_FILE_OFFSET_BITS=64
-OBJS = volume_id.o udev_volume_id.o dasdlabel.o $(SYSFS)
-HEADERS = volume_id.h dasdlabel.h
+VOLUME_ID_OBJS= \
+ volume_id/ext/ext.o \
+ volume_id/fat/fat.o \
+ volume_id/hfs/hfs.o \
+ volume_id/highpoint/highpoint.o \
+ volume_id/iso9660/iso9660.o \
+ volume_id/jfs/jfs.o \
+ volume_id/linux_raid/linux_raid.o \
+ volume_id/linux_swap/linux_swap.o \
+ volume_id/lvm/lvm.o \
+ volume_id/mac/mac.o \
+ volume_id/msdos/msdos.o \
+ volume_id/ntfs/ntfs.o \
+ volume_id/reiserfs/reiserfs.o \
+ volume_id/udf/udf.o \
+ volume_id/ufs/ufs.o \
+ volume_id/xfs/xfs.o \
+ volume_id/dasd/dasd.o \
+ volume_id/volume_id.o \
+ volume_id/util.o
+
+VOLUME_ID_HEADERS= \
+ volume_id/ext/ext.h \
+ volume_id/fat/fat.h \
+ volume_id/hfs/hfs.h \
+ volume_id/highpoint/highpoint.h \
+ volume_id/iso9660/iso9660.h \
+ volume_id/jfs/jfs.h \
+ volume_id/linux_raid/linux_raid.h \
+ volume_id/linux_swap/linux_swap.h \
+ volume_id/lvm/lvm.h \
+ volume_id/mac/mac.h \
+ volume_id/msdos/msdos.h \
+ volume_id/ntfs/ntfs.h \
+ volume_id/reiserfs/reiserfs.h \
+ volume_id/udf/udf.h \
+ volume_id/ufs/ufs.h \
+ volume_id/xfs/xfs.h \
+ volume_id/dasd/dasd.h \
+ volume_id/volume_id.h \
+ volume_id/util.h
+
+OBJS = udev_volume_id.o $(VOLUME_ID_OBJS) $(SYSFS)
+HEADERS = $(VOLUME_ID_HEADERS)
$(OBJS): $(HEADERS)
uninstall:
- rm $(DESTDIR)$(sbindir)/$(PROG)
-
#include "../../libsysfs/sysfs/libsysfs.h"
#include "../../udev_utils.h"
#include "../../logging.h"
-#include "volume_id.h"
-#include "dasdlabel.h"
+#include "volume_id/volume_id.h"
+#include "volume_id/dasd/dasd.h"
#define BLKGETSIZE64 _IOR(0x12,114,size_t)
return vid;
}
-static char *usage_id_name(enum volume_id_usage usage)
-{
- switch(usage) {
- case VOLUME_ID_UNUSED:
- return "unused";
- case VOLUME_ID_UNPROBED:
- return "unprobed";
- case VOLUME_ID_OTHER:
- return "other";
- case VOLUME_ID_PARTITIONTABLE:
- return "partitiontable";
- case VOLUME_ID_FILESYSTEM:
- return "filesystem";
- case VOLUME_ID_RAID:
- return "raid";
- default:
- return "unknown type_id";
- }
-}
-
int main(int argc, char *argv[])
{
const char help[] = "usage: udev_volume_id [-t|-l|-u|-d]\n"
char *devpath;
char probe = 'p';
char print = 'a';
- char dasd_label[7];
static char name[VOLUME_ID_LABEL_SIZE];
int len, i, j;
unsigned long long size;
if (ioctl(vid->fd, BLKGETSIZE64, &size) != 0)
size = 0;
- if (volume_id_probe(vid, VOLUME_ID_ALL, 0, size) == 0)
+ if (volume_id_probe_all(vid, 0, size) == 0)
goto print;
break;
case 'd' :
if (vid == NULL)
goto exit;
- if (probe_ibm_partition(vid->fd, dasd_label) == 0) {
- vid->type = "dasd";
- strncpy(vid->label, dasd_label, 6);
- vid->label[6] = '\0';
+ if (probe_ibm_partition(vid) == 0)
goto print;
- }
break;
}
printf("%s\n", vid->uuid);
break;
case 'a':
- printf("F:%s\n", usage_id_name(vid->usage_id));
+ printf("F:%s\n", vid->usage);
printf("T:%s\n", vid->type);
printf("V:%s\n", vid->type_version);
printf("L:%s\n", vid->label);
+++ /dev/null
-/*
- * volume_id - reads filesystem label and uuid
- *
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- *
- * The superblock structs are taken from the linux kernel sources
- * and the libblkid living inside the e2fsprogs. This is a simple
- * straightforward implementation for reading the label strings of the
- * most common filesystems.
- *
- * 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
- */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE 1
-#endif
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <asm/types.h>
-
-#include "volume_id.h"
-#include "volume_id_logging.h"
-
-#define bswap16(x) (__u16)((((__u16)(x) & 0x00ffu) << 8) | \
- (((__u16)(x) & 0xff00u) >> 8))
-
-#define bswap32(x) (__u32)((((__u32)(x) & 0xff000000u) >> 24) | \
- (((__u32)(x) & 0x00ff0000u) >> 8) | \
- (((__u32)(x) & 0x0000ff00u) << 8) | \
- (((__u32)(x) & 0x000000ffu) << 24))
-
-#define bswap64(x) (__u64)((((__u64)(x) & 0xff00000000000000ull) >> 56) | \
- (((__u64)(x) & 0x00ff000000000000ull) >> 40) | \
- (((__u64)(x) & 0x0000ff0000000000ull) >> 24) | \
- (((__u64)(x) & 0x000000ff00000000ull) >> 8) | \
- (((__u64)(x) & 0x00000000ff000000ull) << 8) | \
- (((__u64)(x) & 0x0000000000ff0000ull) << 24) | \
- (((__u64)(x) & 0x000000000000ff00ull) << 40) | \
- (((__u64)(x) & 0x00000000000000ffull) << 56))
-
-#if (__BYTE_ORDER == __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)
-#elif (__BYTE_ORDER == __BIG_ENDIAN)
-#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)
-#endif
-
-/* size of superblock buffer, reiserfs block is at 64k */
-#define SB_BUFFER_SIZE 0x11000
-/* size of seek buffer 4k */
-#define SEEK_BUFFER_SIZE 0x10000
-
-
-static void set_label_raw(struct volume_id *id,
- const __u8 *buf, unsigned int count)
-{
- memcpy(id->label_raw, buf, count);
- id->label_raw_len = count;
-}
-
-static void set_label_string(struct volume_id *id,
- const __u8 *buf, unsigned int count)
-{
- unsigned int 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';
-}
-
-#define LE 0
-#define BE 1
-static void set_label_unicode16(struct volume_id *id,
- const __u8 *buf,
- unsigned int endianess,
- unsigned int count)
-{
- unsigned int i, j;
- __u16 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) {
- id->label[j] = '\0';
- break;
- } else if (c < 0x80) {
- id->label[j++] = (__u8) c;
- } else if (c < 0x800) {
- id->label[j++] = (__u8) (0xc0 | (c >> 6));
- id->label[j++] = (__u8) (0x80 | (c & 0x3f));
- } else {
- id->label[j++] = (__u8) (0xe0 | (c >> 12));
- id->label[j++] = (__u8) (0x80 | ((c >> 6) & 0x3f));
- id->label[j++] = (__u8) (0x80 | (c & 0x3f));
- }
- }
-}
-
-enum uuid_format {
- UUID_DCE,
- UUID_DOS,
- UUID_NTFS,
- UUID_HFS,
-};
-
-static void set_uuid(struct volume_id *id, const __u8 *buf, enum uuid_format format)
-{
- unsigned int i;
- unsigned int count = 0;
-
- switch(format) {
- case UUID_DOS:
- count = 4;
- break;
- case UUID_NTFS:
- case UUID_HFS:
- count = 8;
- break;
- case UUID_DCE:
- count = 16;
- }
- memcpy(id->uuid_raw, buf, 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;
- }
-}
-
-static __u8 *get_buffer(struct volume_id *id, __u64 off, unsigned int len)
-{
- unsigned int buf_len;
-
- dbg("get buffer off 0x%llx, len 0x%x", off, len);
- /* check if requested area fits in superblock buffer */
- if (off + len <= SB_BUFFER_SIZE) {
- if (id->sbbuf == NULL) {
- id->sbbuf = malloc(SB_BUFFER_SIZE);
- if (id->sbbuf == NULL)
- return NULL;
- }
-
- /* check if we need to read */
- if ((off + len) > id->sbbuf_len) {
- dbg("read sbbuf len:0x%llx", off + len);
- lseek(id->fd, 0, SEEK_SET);
- buf_len = read(id->fd, id->sbbuf, off + len);
- dbg("got 0x%x (%i) bytes", buf_len, buf_len);
- id->sbbuf_len = buf_len;
- if (buf_len < off + len)
- return NULL;
- }
-
- return &(id->sbbuf[off]);
- } else {
- 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 = malloc(SEEK_BUFFER_SIZE);
- if (id->seekbuf == NULL)
- return NULL;
- }
-
- /* 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%x", off, len);
- if (lseek(id->fd, off, SEEK_SET) == -1)
- return NULL;
- buf_len = read(id->fd, id->seekbuf, len);
- dbg("got 0x%x (%i) bytes", buf_len, buf_len);
- id->seekbuf_off = off;
- id->seekbuf_len = buf_len;
- if (buf_len < len) {
- dbg("requested 0x%x bytes, got only 0x%x bytes", len, buf_len);
- return NULL;
- }
- }
-
- return &(id->seekbuf[off - id->seekbuf_off]);
- }
-}
-
-static void free_buffer(struct volume_id *id)
-{
- if (id->sbbuf != NULL) {
- free(id->sbbuf);
- id->sbbuf = NULL;
- id->sbbuf_len = 0;
- }
- if (id->seekbuf != NULL) {
- free(id->seekbuf);
- id->seekbuf = NULL;
- id->seekbuf_len = 0;
- }
-}
-
-#define HPT37X_CONFIG_OFF 0x1200
-#define HPT37X_MAGIC_OK 0x5a7816f0
-#define HPT37X_MAGIC_BAD 0x5a7816fd
-static int probe_highpoint_ataraid(struct volume_id *id, __u64 off)
-{
- struct hpt37x {
- __u8 filler1[32];
- __u32 magic;
- __u32 magic_0;
- __u32 magic_1;
- } __attribute__((packed)) *hpt;
-
- const __u8 *buf;
-
- buf = get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
- if (buf == NULL)
- return -1;
-
- hpt = (struct hpt37x *) buf;
-
- if (hpt->magic != HPT37X_MAGIC_OK && hpt->magic != HPT37X_MAGIC_BAD)
- return -1;
-
- id->usage_id = VOLUME_ID_RAID;
- id->type_id = VOLUME_ID_HPTRAID;
- id->type = "hpt_ataraid_member";
-
- return 0;
-}
-
-#define LVM1_SB_OFF 0x400
-#define LVM1_MAGIC "HM"
-static int probe_lvm1(struct volume_id *id, __u64 off)
-{
- struct lvm2_super_block {
- __u8 id[2];
- } __attribute__((packed)) *lvm;
-
- const __u8 *buf;
-
- buf = get_buffer(id, off + LVM1_SB_OFF, 0x800);
- if (buf == NULL)
- return -1;
-
- lvm = (struct lvm2_super_block *) buf;
-
- if (strncmp(lvm->id, LVM1_MAGIC, 2) != 0)
- return -1;
-
- id->usage_id = VOLUME_ID_RAID;
- id->type_id = VOLUME_ID_LVM1;
- id->type = "LVM1_member";
-
- return 0;
-}
-
-#define LVM2_LABEL_ID "LABELONE"
-#define LVM2LABEL_SCAN_SECTORS 4
-static int probe_lvm2(struct volume_id *id, __u64 off)
-{
- struct lvm2_super_block {
- __u8 id[8];
- __u64 sector_xl;
- __u32 crc_xl;
- __u32 offset_xl;
- __u8 type[8];
- } __attribute__((packed)) *lvm;
-
- const __u8 *buf;
- unsigned int soff;
-
- buf = 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 (strncmp(lvm->id, LVM2_LABEL_ID, 8) == 0)
- goto found;
- }
-
- return -1;
-
-found:
- strncpy(id->type_version, lvm->type, 8);
- id->usage_id = VOLUME_ID_RAID;
- id->type_id = VOLUME_ID_LVM2;
- id->type = "LVM2_member";
-
- return 0;
-}
-
-#define MD_RESERVED_BYTES 0x10000
-#define MD_MAGIC 0xa92b4efc
-static int probe_linux_raid(struct volume_id *id, __u64 off, __u64 size)
-{
- struct mdp_super_block {
- __u32 md_magic;
- __u32 major_version;
- __u32 minor_version;
- __u32 patch_version;
- __u32 gvalid_words;
- __u32 set_uuid0;
- __u32 ctime;
- __u32 level;
- __u32 size;
- __u32 nr_disks;
- __u32 raid_disks;
- __u32 md_minor;
- __u32 not_persistent;
- __u32 set_uuid1;
- __u32 set_uuid2;
- __u32 set_uuid3;
- } __attribute__((packed)) *mdp;
-
- const __u8 *buf;
- __u64 sboff;
- __u8 uuid[16];
-
- if (size < 0x10000)
- return -1;
-
- sboff = (size & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES;
- buf = get_buffer(id, off + sboff, 0x800);
- if (buf == NULL)
- return -1;
-
- mdp = (struct mdp_super_block *) buf;
-
- if (le32_to_cpu(mdp->md_magic) != MD_MAGIC)
- return -1;
-
- memcpy(uuid, &mdp->set_uuid0, 4);
- memcpy(&uuid[4], &mdp->set_uuid1, 12);
- set_uuid(id, uuid, UUID_DCE);
-
- snprintf(id->type_version, VOLUME_ID_FORMAT_SIZE-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");
- id->usage_id = VOLUME_ID_RAID;
- id->type = "linux_raid_member";
-
- return 0;
-}
-
-#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)
-static int probe_msdos_part_table(struct volume_id *id, __u64 off)
-{
- struct msdos_partition_entry {
- __u8 boot_ind;
- __u8 head;
- __u8 sector;
- __u8 cyl;
- __u8 sys_ind;
- __u8 end_head;
- __u8 end_sector;
- __u8 end_cyl;
- __u32 start_sect;
- __u32 nr_sects;
- } __attribute__((packed)) *part;
-
- const __u8 *buf;
- int i;
- __u64 poff;
- __u64 plen;
- __u64 extended = 0;
- __u64 current;
- __u64 next;
- int limit;
- int empty = 1;
- struct volume_id_partition *p;
-
- buf = get_buffer(id, off, 0x200);
- if (buf == NULL)
- return -1;
-
- if (strncmp(&buf[MSDOS_SIG_OFF], MSDOS_MAGIC, 2) != 0)
- return -1;
-
- /* check flags on all entries for a valid partition table */
- part = (struct msdos_partition_entry*) &buf[MSDOS_PARTTABLE_OFFSET];
- for (i = 0; i < 4; i++) {
- if (part[i].boot_ind != 0 &&
- part[i].boot_ind != 0x80)
- return -1;
-
- if (le32_to_cpu(part[i].nr_sects) != 0)
- empty = 0;
- }
- if (empty == 1)
- return -1;
-
- if (id->partitions != NULL)
- free(id->partitions);
- id->partitions = malloc(VOLUME_ID_PARTITIONS_MAX *
- sizeof(struct volume_id_partition));
- if (id->partitions == NULL)
- return -1;
- memset(id->partitions, 0x00,
- VOLUME_ID_PARTITIONS_MAX * sizeof(struct volume_id_partition));
-
- for (i = 0; i < 4; i++) {
- poff = (__u64) le32_to_cpu(part[i].start_sect) * BSIZE;
- plen = (__u64) 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", poff);
- p->usage_id = VOLUME_ID_PARTITIONTABLE;
- p->type_id = VOLUME_ID_MSDOSEXTENDED;
- 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, poff, plen);
-
- if (is_raid(part[i].sys_ind))
- p->usage_id = VOLUME_ID_RAID;
- else
- p->usage_id = 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 = get_buffer(id, current, 0x200);
- if (buf == NULL)
- break;
-
- part = (struct msdos_partition_entry*) &buf[MSDOS_PARTTABLE_OFFSET];
-
- if (strncmp(&buf[MSDOS_SIG_OFF], MSDOS_MAGIC, 2) != 0)
- break;
-
- next = 0;
-
- for (i = 0; i < 4; i++) {
- poff = (__u64) le32_to_cpu(part[i].start_sect) * BSIZE;
- plen = (__u64) 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", poff);
- if (next == 0)
- next = extended + poff;
- } else {
- dbg("found 0x%x data partition at 0x%llx, len 0x%llx",
- part[i].sys_ind, poff, plen);
-
- /* we always start at the 5th entry */
- while (id->partition_count < 4)
- id->partitions[id->partition_count++].usage_id =
- VOLUME_ID_UNUSED;
-
- p = &id->partitions[id->partition_count];
-
- if (is_raid(part[i].sys_ind))
- p->usage_id = VOLUME_ID_RAID;
- else
- p->usage_id = 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;
- }
-
- id->usage_id = VOLUME_ID_PARTITIONTABLE;
- id->type_id = VOLUME_ID_MSDOSPARTTABLE;
- id->type = "msdos_partition_table";
-
- return 0;
-}
-
-#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x00000004
-#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x00000008
-#define EXT_SUPERBLOCK_OFFSET 0x400
-static int probe_ext(struct volume_id *id, __u64 off)
-{
- struct ext2_super_block {
- __u32 inodes_count;
- __u32 blocks_count;
- __u32 r_blocks_count;
- __u32 free_blocks_count;
- __u32 free_inodes_count;
- __u32 first_data_block;
- __u32 log_block_size;
- __u32 dummy3[7];
- __u8 magic[2];
- __u16 state;
- __u32 dummy5[8];
- __u32 feature_compat;
- __u32 feature_incompat;
- __u32 feature_ro_compat;
- __u8 uuid[16];
- __u8 volume_name[16];
- } __attribute__((__packed__)) *es;
-
- es = (struct ext2_super_block *)
- get_buffer(id, off + EXT_SUPERBLOCK_OFFSET, 0x200);
- if (es == NULL)
- return -1;
-
- if (es->magic[0] != 0123 ||
- es->magic[1] != 0357)
- return -1;
-
- set_label_raw(id, es->volume_name, 16);
- set_label_string(id, es->volume_name, 16);
- set_uuid(id, es->uuid, UUID_DCE);
-
- if ((le32_to_cpu(es->feature_compat) &
- EXT3_FEATURE_COMPAT_HAS_JOURNAL) != 0) {
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_EXT3;
- id->type = "ext3";
- } else {
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_EXT2;
- id->type = "ext2";
- }
-
- return 0;
-}
-
-#define REISERFS1_SUPERBLOCK_OFFSET 0x2000
-#define REISERFS_SUPERBLOCK_OFFSET 0x10000
-static int probe_reiserfs(struct volume_id *id, __u64 off)
-{
- struct reiserfs_super_block {
- __u32 blocks_count;
- __u32 free_blocks;
- __u32 root_block;
- __u32 journal_block;
- __u32 journal_dev;
- __u32 orig_journal_size;
- __u32 dummy2[5];
- __u16 blocksize;
- __u16 dummy3[3];
- __u8 magic[12];
- __u32 dummy4[5];
- __u8 uuid[16];
- __u8 label[16];
- } __attribute__((__packed__)) *rs;
-
- rs = (struct reiserfs_super_block *)
- get_buffer(id, off + REISERFS_SUPERBLOCK_OFFSET, 0x200);
- if (rs == NULL)
- return -1;
-
- if (strncmp(rs->magic, "ReIsEr2Fs", 9) == 0) {
- strcpy(id->type_version, "3.6");
- goto found;
- }
-
- if (strncmp(rs->magic, "ReIsEr3Fs", 9) == 0) {
- strcpy(id->type_version, "JR");
- goto found;
- }
-
- rs = (struct reiserfs_super_block *)
- get_buffer(id, off + REISERFS1_SUPERBLOCK_OFFSET, 0x200);
- if (rs == NULL)
- return -1;
-
- if (strncmp(rs->magic, "ReIsErFs", 8) == 0) {
- strcpy(id->type_version, "3.5");
- goto found;
- }
-
- return -1;
-
-found:
- set_label_raw(id, rs->label, 16);
- set_label_string(id, rs->label, 16);
- set_uuid(id, rs->uuid, UUID_DCE);
-
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_REISERFS;
- id->type = "reiserfs";
-
- return 0;
-}
-
-static int probe_xfs(struct volume_id *id, __u64 off)
-{
- struct xfs_super_block {
- __u8 magic[4];
- __u32 blocksize;
- __u64 dblocks;
- __u64 rblocks;
- __u32 dummy1[2];
- __u8 uuid[16];
- __u32 dummy2[15];
- __u8 fname[12];
- __u32 dummy3[2];
- __u64 icount;
- __u64 ifree;
- __u64 fdblocks;
- } __attribute__((__packed__)) *xs;
-
- xs = (struct xfs_super_block *) get_buffer(id, off, 0x200);
- if (xs == NULL)
- return -1;
-
- if (strncmp(xs->magic, "XFSB", 4) != 0)
- return -1;
-
- set_label_raw(id, xs->fname, 12);
- set_label_string(id, xs->fname, 12);
- set_uuid(id, xs->uuid, UUID_DCE);
-
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_XFS;
- id->type = "xfs";
-
- return 0;
-}
-
-#define JFS_SUPERBLOCK_OFFSET 0x8000
-static int probe_jfs(struct volume_id *id, __u64 off)
-{
- struct jfs_super_block {
- __u8 magic[4];
- __u32 version;
- __u64 size;
- __u32 bsize;
- __u32 dummy1;
- __u32 pbsize;
- __u32 dummy2[27];
- __u8 uuid[16];
- __u8 label[16];
- __u8 loguuid[16];
- } __attribute__((__packed__)) *js;
-
- js = (struct jfs_super_block *)
- get_buffer(id, off + JFS_SUPERBLOCK_OFFSET, 0x200);
- if (js == NULL)
- return -1;
-
- if (strncmp(js->magic, "JFS1", 4) != 0)
- return -1;
-
- set_label_raw(id, js->label, 16);
- set_label_string(id, js->label, 16);
- set_uuid(id, js->uuid, UUID_DCE);
-
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_JFS;
- id->type = "jfs";
-
- return 0;
-}
-
-#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
-static int probe_vfat(struct volume_id *id, __u64 off)
-{
- struct vfat_super_block {
- __u8 boot_jump[3];
- __u8 sysid[8];
- __u16 sector_size;
- __u8 sectors_per_cluster;
- __u16 reserved;
- __u8 fats;
- __u16 dir_entries;
- __u16 sectors;
- __u8 media;
- __u16 fat_length;
- __u16 secs_track;
- __u16 heads;
- __u32 hidden;
- __u32 total_sect;
- union {
- struct fat_super_block {
- __u8 unknown[3];
- __u8 serno[4];
- __u8 label[11];
- __u8 magic[8];
- __u8 dummy2[192];
- __u8 pmagic[2];
- } __attribute__((__packed__)) fat;
- struct fat32_super_block {
- __u32 fat32_length;
- __u16 flags;
- __u8 version[2];
- __u32 root_cluster;
- __u16 insfo_sector;
- __u16 backup_boot;
- __u16 reserved2[6];
- __u8 unknown[3];
- __u8 serno[4];
- __u8 label[11];
- __u8 magic[8];
- __u8 dummy2[164];
- __u8 pmagic[2];
- } __attribute__((__packed__)) fat32;
- } __attribute__((__packed__)) type;
- } __attribute__((__packed__)) *vs;
-
- struct vfat_dir_entry {
- __u8 name[11];
- __u8 attr;
- __u16 time_creat;
- __u16 date_creat;
- __u16 time_acc;
- __u16 date_acc;
- __u16 cluster_high;
- __u16 time_write;
- __u16 date_write;
- __u16 cluster_low;
- __u32 size;
- } __attribute__((__packed__)) *dir;
-
- __u16 sector_size;
- __u16 dir_entries;
- __u32 sect_count;
- __u16 reserved;
- __u32 fat_size;
- __u32 root_cluster;
- __u32 dir_size;
- __u32 cluster_count;
- __u32 fat_length;
- __u64 root_start;
- __u32 start_data_sect;
- __u16 root_dir_entries;
- __u8 *buf;
- __u32 buf_size;
- __u8 *label = NULL;
- __u32 next;
- int maxloop;
- int i;
-
- vs = (struct vfat_super_block *) 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 (strncmp(vs->sysid, "NTFS", 4) == 0)
- return -1;
-
- if (strncmp(vs->type.fat32.magic, "MSWIN", 5) == 0)
- goto valid;
-
- if (strncmp(vs->type.fat32.magic, "FAT32 ", 8) == 0)
- goto valid;
-
- if (strncmp(vs->type.fat.magic, "FAT16 ", 8) == 0)
- goto valid;
-
- if (strncmp(vs->type.fat.magic, "MSDOS", 5) == 0)
- goto valid;
-
- if (strncmp(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", 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 = get_buffer(id, off + root_start, buf_size);
- if (buf == NULL)
- goto found;
-
- dir = (struct vfat_dir_entry*) buf;
-
- for (i = 0; i < root_dir_entries; 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");
- label = dir[i].name;
- break;
- }
-
- dbg("skip dir entry");
- }
-
- vs = (struct vfat_super_block *) get_buffer(id, off, 0x200);
- if (vs == NULL)
- return -1;
-
- if (label != NULL && strncmp(label, "NO NAME ", 11) != 0) {
- set_label_raw(id, label, 11);
- set_label_string(id, label, 11);
- } else if (strncmp(vs->type.fat.label, "NO NAME ", 11) != 0) {
- set_label_raw(id, vs->type.fat.label, 11);
- set_label_string(id, vs->type.fat.label, 11);
- }
- 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) {
- __u32 next_sect_off;
- __u64 next_off;
- __u64 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", next_off);
-
- /* get cluster */
- buf = 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);
-
- for (i = 0; i < count; i++) {
- /* end marker */
- if (dir[i].name[0] == 0x00) {
- dbg("end of dir");
- goto fat32_label;
- }
-
- /* 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");
- label = dir[i].name;
- goto fat32_label;
- }
-
- dbg("skip dir entry");
- }
-
- /* get FAT entry */
- fat_entry_off = (reserved * sector_size) + (next * sizeof(__u32));
- buf = get_buffer(id, off + fat_entry_off, buf_size);
- if (buf == NULL)
- goto found;
-
- /* set next cluster */
- next = le32_to_cpu(*((__u32 *) buf) & 0x0fffffff);
- if (next == 0)
- break;
- }
- if (maxloop == 0)
- dbg("reached maximum follow count of root cluster chain, give up");
-
-fat32_label:
- vs = (struct vfat_super_block *) get_buffer(id, off, 0x200);
- if (vs == NULL)
- return -1;
-
- if (label != NULL && strncmp(label, "NO NAME ", 11) != 0) {
- set_label_raw(id, label, 11);
- set_label_string(id, label, 11);
- } else if (strncmp(vs->type.fat32.label, "NO NAME ", 11) != 0) {
- set_label_raw(id, vs->type.fat32.label, 11);
- set_label_string(id, vs->type.fat32.label, 11);
- }
- set_uuid(id, vs->type.fat32.serno, UUID_DOS);
-
-found:
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_VFAT;
- id->type = "vfat";
-
- return 0;
-}
-
-#define UDF_VSD_OFFSET 0x8000
-static int probe_udf(struct volume_id *id, __u64 off)
-{
- struct volume_descriptor {
- struct descriptor_tag {
- __u16 id;
- __u16 version;
- __u8 checksum;
- __u8 reserved;
- __u16 serial;
- __u16 crc;
- __u16 crc_len;
- __u32 location;
- } __attribute__((__packed__)) tag;
- union {
- struct anchor_descriptor {
- __u32 length;
- __u32 location;
- } __attribute__((__packed__)) anchor;
- struct primary_descriptor {
- __u32 seq_num;
- __u32 desc_num;
- struct dstring {
- __u8 clen;
- __u8 c[31];
- } __attribute__((__packed__)) ident;
- } __attribute__((__packed__)) primary;
- } __attribute__((__packed__)) type;
- } __attribute__((__packed__)) *vd;
-
- struct volume_structure_descriptor {
- __u8 type;
- __u8 id[5];
- __u8 version;
- } *vsd;
-
- unsigned int bs;
- unsigned int b;
- unsigned int type;
- unsigned int count;
- unsigned int loc;
- unsigned int clen;
-
- vsd = (struct volume_structure_descriptor *)
- get_buffer(id, off + UDF_VSD_OFFSET, 0x200);
- if (vsd == NULL)
- return -1;
-
- if (strncmp(vsd->id, "NSR02", 5) == 0)
- goto blocksize;
- if (strncmp(vsd->id, "NSR03", 5) == 0)
- goto blocksize;
- if (strncmp(vsd->id, "BEA01", 5) == 0)
- goto blocksize;
- if (strncmp(vsd->id, "BOOT2", 5) == 0)
- goto blocksize;
- if (strncmp(vsd->id, "CD001", 5) == 0)
- goto blocksize;
- if (strncmp(vsd->id, "CDW02", 5) == 0)
- goto blocksize;
- if (strncmp(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 = (struct volume_structure_descriptor *)
- 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 = (struct volume_structure_descriptor *)
- 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 (strncmp(vsd->id, "NSR02", 5) == 0)
- goto anchor;
- if (strncmp(vsd->id, "NSR03", 5) == 0)
- goto anchor;
- }
- return -1;
-
-anchor:
- /* read anchor volume descriptor */
- vd = (struct volume_descriptor *)
- 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 = (struct volume_descriptor *)
- 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:
- 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)
- set_label_string(id, vd->type.primary.ident.c, 31);
- else if (clen == 16)
- set_label_unicode16(id, vd->type.primary.ident.c, BE,31);
-
-found:
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_UDF;
- id->type = "udf";
-
- return 0;
-}
-
-#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
-static int probe_iso9660(struct volume_id *id, __u64 off)
-{
- union iso_super_block {
- struct iso_header {
- __u8 type;
- __u8 id[5];
- __u8 version;
- __u8 unused1;
- __u8 system_id[32];
- __u8 volume_id[32];
- } __attribute__((__packed__)) iso;
- struct hs_header {
- __u8 foo[8];
- __u8 type;
- __u8 id[4];
- __u8 version;
- } __attribute__((__packed__)) hs;
- } __attribute__((__packed__)) *is;
-
- is = (union iso_super_block *)
- get_buffer(id, off + ISO_SUPERBLOCK_OFFSET, 0x200);
- if (is == NULL)
- return -1;
-
- if (strncmp(is->iso.id, "CD001", 5) == 0) {
- char root_label[VOLUME_ID_LABEL_SIZE+1];
- int vd_offset;
- int i;
- int found_svd;
-
- memset(root_label, 0, sizeof(root_label));
- strncpy(root_label, is->iso.volume_id, sizeof(root_label)-1);
-
- found_svd = 0;
- vd_offset = ISO_VD_OFFSET;
- for (i = 0; i < ISO_VD_MAX; i++) {
- is = (union iso_super_block *)
- get_buffer (id, off + vd_offset, 0x200);
- if (is == NULL || is->iso.type == ISO_VD_END)
- break;
- if (is->iso.type == ISO_VD_SUPPLEMENTARY) {
- dbg("found ISO supplementary VD at offset 0x%llx", off + vd_offset);
- set_label_raw(id, is->iso.volume_id, 32);
- set_label_unicode16(id, is->iso.volume_id, BE, 32);
- found_svd = 1;
- break;
- }
- vd_offset += ISO_SECTOR_SIZE;
- }
-
- if (!found_svd ||
- (found_svd && !strncmp(root_label, id->label, 16)))
- {
- set_label_raw(id, root_label, 32);
- set_label_string(id, root_label, 32);
- }
- goto found;
- }
- if (strncmp(is->hs.id, "CDROM", 5) == 0)
- goto found;
- return -1;
-
-found:
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_ISO9660;
- id->type = "iso9660";
-
- return 0;
-}
-
-#define UFS_MAGIC 0x00011954
-#define UFS2_MAGIC 0x19540119
-#define UFS_MAGIC_FEA 0x00195612
-#define UFS_MAGIC_LFN 0x00095014
-
-
-static int probe_ufs(struct volume_id *id, __u64 off)
-{
- struct ufs_super_block {
- __u32 fs_link;
- __u32 fs_rlink;
- __u32 fs_sblkno;
- __u32 fs_cblkno;
- __u32 fs_iblkno;
- __u32 fs_dblkno;
- __u32 fs_cgoffset;
- __u32 fs_cgmask;
- __u32 fs_time;
- __u32 fs_size;
- __u32 fs_dsize;
- __u32 fs_ncg;
- __u32 fs_bsize;
- __u32 fs_fsize;
- __u32 fs_frag;
- __u32 fs_minfree;
- __u32 fs_rotdelay;
- __u32 fs_rps;
- __u32 fs_bmask;
- __u32 fs_fmask;
- __u32 fs_bshift;
- __u32 fs_fshift;
- __u32 fs_maxcontig;
- __u32 fs_maxbpg;
- __u32 fs_fragshift;
- __u32 fs_fsbtodb;
- __u32 fs_sbsize;
- __u32 fs_csmask;
- __u32 fs_csshift;
- __u32 fs_nindir;
- __u32 fs_inopb;
- __u32 fs_nspf;
- __u32 fs_optim;
- __u32 fs_npsect_state;
- __u32 fs_interleave;
- __u32 fs_trackskew;
- __u32 fs_id[2];
- __u32 fs_csaddr;
- __u32 fs_cssize;
- __u32 fs_cgsize;
- __u32 fs_ntrak;
- __u32 fs_nsect;
- __u32 fs_spc;
- __u32 fs_ncyl;
- __u32 fs_cpg;
- __u32 fs_ipg;
- __u32 fs_fpg;
- struct ufs_csum {
- __u32 cs_ndir;
- __u32 cs_nbfree;
- __u32 cs_nifree;
- __u32 cs_nffree;
- } __attribute__((__packed__)) fs_cstotal;
- __s8 fs_fmod;
- __s8 fs_clean;
- __s8 fs_ronly;
- __s8 fs_flags;
- union {
- struct {
- __s8 fs_fsmnt[512];
- __u32 fs_cgrotor;
- __u32 fs_csp[31];
- __u32 fs_maxcluster;
- __u32 fs_cpc;
- __u16 fs_opostbl[16][8];
- } __attribute__((__packed__)) fs_u1;
- struct {
- __s8 fs_fsmnt[468];
- __u8 fs_volname[32];
- __u64 fs_swuid;
- __s32 fs_pad;
- __u32 fs_cgrotor;
- __u32 fs_ocsp[28];
- __u32 fs_contigdirs;
- __u32 fs_csp;
- __u32 fs_maxcluster;
- __u32 fs_active;
- __s32 fs_old_cpc;
- __s32 fs_maxbsize;
- __s64 fs_sparecon64[17];
- __s64 fs_sblockloc;
- struct ufs2_csum_total {
- __u64 cs_ndir;
- __u64 cs_nbfree;
- __u64 cs_nifree;
- __u64 cs_nffree;
- __u64 cs_numclusters;
- __u64 cs_spare[3];
- } __attribute__((__packed__)) fs_cstotal;
- struct ufs_timeval {
- __s32 tv_sec;
- __s32 tv_usec;
- } __attribute__((__packed__)) fs_time;
- __s64 fs_size;
- __s64 fs_dsize;
- __u64 fs_csaddr;
- __s64 fs_pendingblocks;
- __s32 fs_pendinginodes;
- } __attribute__((__packed__)) fs_u2;
- } fs_u11;
- union {
- struct {
- __s32 fs_sparecon[53];
- __s32 fs_reclaim;
- __s32 fs_sparecon2[1];
- __s32 fs_state;
- __u32 fs_qbmask[2];
- __u32 fs_qfmask[2];
- } __attribute__((__packed__)) fs_sun;
- struct {
- __s32 fs_sparecon[53];
- __s32 fs_reclaim;
- __s32 fs_sparecon2[1];
- __u32 fs_npsect;
- __u32 fs_qbmask[2];
- __u32 fs_qfmask[2];
- } __attribute__((__packed__)) fs_sunx86;
- struct {
- __s32 fs_sparecon[50];
- __s32 fs_contigsumsize;
- __s32 fs_maxsymlinklen;
- __s32 fs_inodefmt;
- __u32 fs_maxfilesize[2];
- __u32 fs_qbmask[2];
- __u32 fs_qfmask[2];
- __s32 fs_state;
- } __attribute__((__packed__)) fs_44;
- } fs_u2;
- __s32 fs_postblformat;
- __s32 fs_nrpos;
- __s32 fs_postbloff;
- __s32 fs_rotbloff;
- __u32 fs_magic;
- __u8 fs_space[1];
- } __attribute__((__packed__)) *ufs;
-
- __u32 magic;
- int i;
- int offsets[] = {0, 8, 64, 256, -1};
-
- for (i = 0; offsets[i] >= 0; i++) {
- ufs = (struct ufs_super_block *)
- get_buffer(id, off + (offsets[i] * 0x400), 0x800);
- if (ufs == NULL)
- return -1;
-
- dbg("offset 0x%x", offsets[i] * 0x400);
- magic = be32_to_cpu(ufs->fs_magic);
- if ((magic == UFS_MAGIC) ||
- (magic == UFS2_MAGIC) ||
- (magic == UFS_MAGIC_FEA) ||
- (magic == UFS_MAGIC_LFN)) {
- dbg("magic 0x%08x(be)", magic);
- goto found;
- }
- magic = le32_to_cpu(ufs->fs_magic);
- if ((magic == UFS_MAGIC) ||
- (magic == UFS2_MAGIC) ||
- (magic == UFS_MAGIC_FEA) ||
- (magic == UFS_MAGIC_LFN)) {
- dbg("magic 0x%08x(le)", magic);
- goto found;
- }
- }
- return -1;
-
-found:
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_UFS;
- id->type = "ufs";
-
- return 0;
-}
-
-static int probe_mac_partition_map(struct volume_id *id, __u64 off)
-{
- struct mac_driver_desc {
- __u8 signature[2];
- __u16 block_size;
- __u32 block_count;
- } __attribute__((__packed__)) *driver;
-
- struct mac_partition {
- __u8 signature[2];
- __u16 res1;
- __u32 map_count;
- __u32 start_block;
- __u32 block_count;
- __u8 name[32];
- __u8 type[32];
- } __attribute__((__packed__)) *part;
-
- const __u8 *buf;
-
- buf = get_buffer(id, off, 0x200);
- if (buf == NULL)
- return -1;
-
- part = (struct mac_partition *) buf;
- if ((strncmp(part->signature, "PM", 2) == 0) &&
- (strncmp(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 */
- id->usage_id = VOLUME_ID_PARTITIONTABLE;
- id->type_id = VOLUME_ID_MACPARTMAP;
- id->type = "mac_partition_map";
- return 0;
- }
-
- driver = (struct mac_driver_desc *) buf;
- if (strncmp(driver->signature, "ER", 2) == 0) {
- /* we are on a main device, like a CD
- * just try to probe the first partition from the map */
- unsigned int bsize = be16_to_cpu(driver->block_size);
- int part_count;
- int i;
-
- /* get first entry of partition table */
- buf = get_buffer(id, off + bsize, 0x200);
- if (buf == NULL)
- return -1;
-
- part = (struct mac_partition *) buf;
- if (strncmp(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++) {
- __u64 poff;
- __u64 plen;
-
- buf = get_buffer(id, off + ((i+1) * bsize), 0x200);
- if (buf == NULL)
- return -1;
-
- part = (struct mac_partition *) buf;
- if (strncmp(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, poff, plen);
-
- id->partitions[i].off = poff;
- id->partitions[i].len = plen;
-
- if (strncmp(part->type, "Apple_Free", 10) == 0) {
- id->partitions[i].usage_id = VOLUME_ID_UNUSED;
- } else if (strncmp(part->type, "Apple_partition_map", 19) == 0) {
- id->partitions[i].usage_id = VOLUME_ID_PARTITIONTABLE;
- id->partitions[i].type_id = VOLUME_ID_MACPARTMAP;
- } else {
- id->partitions[i].usage_id = VOLUME_ID_UNPROBED;
- }
- }
- id->usage_id = VOLUME_ID_PARTITIONTABLE;
- id->type_id = VOLUME_ID_MACPARTMAP;
- id->type = "mac_partition_map";
- return 0;
- }
-
- return -1;
-}
-
-#define HFS_SUPERBLOCK_OFFSET 0x400
-#define HFS_NODE_LEAF 0xff
-#define HFSPLUS_POR_CNID 1
-#define HFSPLUS_EXTENT_COUNT 8
-static int probe_hfs_hfsplus(struct volume_id *id, __u64 off)
-{
- struct hfs_finder_info{
- __u32 boot_folder;
- __u32 start_app;
- __u32 open_folder;
- __u32 os9_folder;
- __u32 reserved;
- __u32 osx_folder;
- __u8 id[8];
- } __attribute__((__packed__));
-
- struct hfs_mdb {
- __u8 signature[2];
- __u32 cr_date;
- __u32 ls_Mod;
- __u16 atrb;
- __u16 nm_fls;
- __u16 vbm_st;
- __u16 alloc_ptr;
- __u16 nm_al_blks;
- __u32 al_blk_size;
- __u32 clp_size;
- __u16 al_bl_st;
- __u32 nxt_cnid;
- __u16 free_bks;
- __u8 label_len;
- __u8 label[27];
- __u32 vol_bkup;
- __u16 vol_seq_num;
- __u32 wr_cnt;
- __u32 xt_clump_size;
- __u32 ct_clump_size;
- __u16 num_root_dirs;
- __u32 file_count;
- __u32 dir_count;
- struct hfs_finder_info finder_info;
- __u8 embed_sig[2];
- __u16 embed_startblock;
- __u16 embed_blockcount;
- } __attribute__((__packed__)) *hfs;
-
- struct hfsplus_bnode_descriptor {
- __u32 next;
- __u32 prev;
- __u8 type;
- __u8 height;
- __u16 num_recs;
- __u16 reserved;
- } __attribute__((__packed__));
-
- struct hfsplus_bheader_record {
- __u16 depth;
- __u32 root;
- __u32 leaf_count;
- __u32 leaf_head;
- __u32 leaf_tail;
- __u16 node_size;
- } __attribute__((__packed__));
-
- struct hfsplus_catalog_key {
- __u16 key_len;
- __u32 parent_id;
- __u16 unicode_len;
- __u8 unicode[255 * 2];
- } __attribute__((__packed__));
-
- struct hfsplus_extent {
- __u32 start_block;
- __u32 block_count;
- } __attribute__((__packed__));
-
- struct hfsplus_fork {
- __u64 total_size;
- __u32 clump_size;
- __u32 total_blocks;
- struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
- } __attribute__((__packed__));
-
- struct hfsplus_vol_header {
- __u8 signature[2];
- __u16 version;
- __u32 attributes;
- __u32 last_mount_vers;
- __u32 reserved;
- __u32 create_date;
- __u32 modify_date;
- __u32 backup_date;
- __u32 checked_date;
- __u32 file_count;
- __u32 folder_count;
- __u32 blocksize;
- __u32 total_blocks;
- __u32 free_blocks;
- __u32 next_alloc;
- __u32 rsrc_clump_sz;
- __u32 data_clump_sz;
- __u32 next_cnid;
- __u32 write_count;
- __u64 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__)) *hfsplus;
-
- unsigned int blocksize;
- unsigned int cat_block;
- unsigned int ext_block_start;
- unsigned int ext_block_count;
- int ext;
- unsigned int leaf_node_head;
- unsigned int leaf_node_count;
- unsigned int leaf_node_size;
- unsigned int leaf_block;
- __u64 leaf_off;
- unsigned int alloc_block_size;
- unsigned int alloc_first_block;
- unsigned int embed_first_block;
- unsigned int record_count;
- struct hfsplus_bnode_descriptor *descr;
- struct hfsplus_bheader_record *bnode;
- struct hfsplus_catalog_key *key;
- unsigned int label_len;
- struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
- const __u8 *buf;
-
- buf = get_buffer(id, off + HFS_SUPERBLOCK_OFFSET, 0x200);
- if (buf == NULL)
- return -1;
-
- hfs = (struct hfs_mdb *) buf;
- if (strncmp(hfs->signature, "BD", 2) != 0)
- goto checkplus;
-
- /* it may be just a hfs wrapper for hfs+ */
- if (strncmp(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", off);
-
- buf = get_buffer(id, off + HFS_SUPERBLOCK_OFFSET, 0x200);
- if (buf == NULL)
- return -1;
- goto checkplus;
- }
-
- if (hfs->label_len > 0 && hfs->label_len < 28) {
- set_label_raw(id, hfs->label, hfs->label_len);
- set_label_string(id, hfs->label, hfs->label_len) ;
- }
-
- set_uuid(id, hfs->finder_info.id, UUID_HFS);
-
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_HFS;
- id->type = "hfs";
-
- return 0;
-
-checkplus:
- hfsplus = (struct hfsplus_vol_header *) buf;
- if (strncmp(hfsplus->signature, "H+", 2) == 0)
- goto hfsplus;
- if (strncmp(hfsplus->signature, "HX", 2) == 0)
- goto hfsplus;
- return -1;
-
-hfsplus:
- 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 = 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 = 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 (be32_to_cpu(key->parent_id) != HFSPLUS_POR_CNID)
- goto found;
-
- label_len = be16_to_cpu(key->unicode_len) * 2;
- dbg("label unicode16 len %i", label_len);
- set_label_raw(id, key->unicode, label_len);
- set_label_unicode16(id, key->unicode, BE, label_len);
-
-found:
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_HFSPLUS;
- id->type = "hfsplus";
-
- return 0;
-}
-
-#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
-static int probe_ntfs(struct volume_id *id, __u64 off)
-{
- struct ntfs_super_block {
- __u8 jump[3];
- __u8 oem_id[8];
- __u16 bytes_per_sector;
- __u8 sectors_per_cluster;
- __u16 reserved_sectors;
- __u8 fats;
- __u16 root_entries;
- __u16 sectors;
- __u8 media_type;
- __u16 sectors_per_fat;
- __u16 sectors_per_track;
- __u16 heads;
- __u32 hidden_sectors;
- __u32 large_sectors;
- __u16 unused[2];
- __u64 number_of_sectors;
- __u64 mft_cluster_location;
- __u64 mft_mirror_cluster_location;
- __s8 cluster_per_mft_record;
- __u8 reserved1[3];
- __s8 cluster_per_index_record;
- __u8 reserved2[3];
- __u8 volume_serial[8];
- __u16 checksum;
- } __attribute__((__packed__)) *ns;
-
- struct master_file_table_record {
- __u8 magic[4];
- __u16 usa_ofs;
- __u16 usa_count;
- __u64 lsn;
- __u16 sequence_number;
- __u16 link_count;
- __u16 attrs_offset;
- __u16 flags;
- __u32 bytes_in_use;
- __u32 bytes_allocated;
- } __attribute__((__packed__)) *mftr;
-
- struct file_attribute {
- __u32 type;
- __u32 len;
- __u8 non_resident;
- __u8 name_len;
- __u16 name_offset;
- __u16 flags;
- __u16 instance;
- __u32 value_len;
- __u16 value_offset;
- } __attribute__((__packed__)) *attr;
-
- struct volume_info {
- __u64 reserved;
- __u8 major_ver;
- __u8 minor_ver;
- } __attribute__((__packed__)) *info;
-
- unsigned int sector_size;
- unsigned int cluster_size;
- __u64 mft_cluster;
- __u64 mft_off;
- unsigned int mft_record_size;
- unsigned int attr_type;
- unsigned int attr_off;
- unsigned int attr_len;
- unsigned int val_off;
- unsigned int val_len;
- const __u8 *buf;
- const __u8 *val;
-
- ns = (struct ntfs_super_block *) get_buffer(id, off, 0x200);
- if (ns == NULL)
- return -1;
-
- if (strncmp(ns->oem_id, "NTFS", 4) != 0)
- return -1;
-
- 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 %lli", mft_cluster);
- dbg("mftoffset 0x%llx", mft_off);
- dbg("cluster per mft_record %i", ns->cluster_per_mft_record);
- dbg("mft record size %i", mft_record_size);
-
- buf = 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 (strncmp(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) {
- 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) {
- dbg("found info, len %i", val_len);
- info = (struct volume_info*) (((__u8 *) attr) + val_off);
- snprintf(id->type_version, VOLUME_ID_FORMAT_SIZE-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 = ((__u8 *) attr) + val_off;
- set_label_raw(id, val, val_len);
- set_label_unicode16(id, val, LE, val_len);
- }
- }
-
-found:
- id->usage_id = VOLUME_ID_FILESYSTEM;
- id->type_id = VOLUME_ID_NTFS;
- id->type = "ntfs";
-
- return 0;
-}
-
-#define LARGEST_PAGESIZE 0x4000
-static int probe_swap(struct volume_id *id, __u64 off)
-{
- struct swap_header_v1_2 {
- __u8 bootbits[1024];
- __u32 version;
- __u32 last_page;
- __u32 nr_badpages;
- __u8 uuid[16];
- __u8 volume_name[16];
- } __attribute__((__packed__)) *sw;
-
- const __u8 *buf;
- unsigned int page;
-
- /* the swap signature is at the end of the PAGE_SIZE */
- for (page = 0x1000; page <= LARGEST_PAGESIZE; page <<= 1) {
- buf = get_buffer(id, off + page-10, 10);
- if (buf == NULL)
- return -1;
-
- if (strncmp(buf, "SWAP-SPACE", 10) == 0) {
- strcpy(id->type_version, "1");
- goto found;
- }
-
- if (strncmp(buf, "SWAPSPACE2", 10) == 0) {
- sw = (struct swap_header_v1_2 *) get_buffer(id, off, sizeof(struct swap_header_v1_2));
- if (sw == NULL)
- return -1;
- strcpy(id->type_version, "2");
- set_label_raw(id, sw->volume_name, 16);
- set_label_string(id, sw->volume_name, 16);
- set_uuid(id, sw->uuid, UUID_DCE);
- goto found;
- }
- }
- return -1;
-
-found:
- id->usage_id = VOLUME_ID_OTHER;
- id->type_id = VOLUME_ID_SWAP;
- id->type = "swap";
-
- return 0;
-}
-
-/* probe volume for filesystem type and try to read label+uuid */
-int volume_id_probe(struct volume_id *id,
- enum volume_id_type type,
- unsigned long long off,
- unsigned long long size)
-{
- int rc;
-
- dbg("called with size=0x%llx", size);
-
- if (id == NULL)
- return -EINVAL;
-
- switch (type) {
- case VOLUME_ID_MSDOSPARTTABLE:
- rc = probe_msdos_part_table(id, off);
- break;
- case VOLUME_ID_EXT3:
- case VOLUME_ID_EXT2:
- rc = probe_ext(id, off);
- break;
- case VOLUME_ID_REISERFS:
- rc = probe_reiserfs(id, off);
- break;
- case VOLUME_ID_XFS:
- rc = probe_xfs(id, off);
- break;
- case VOLUME_ID_JFS:
- rc = probe_jfs(id, off);
- break;
- case VOLUME_ID_VFAT:
- rc = probe_vfat(id, off);
- break;
- case VOLUME_ID_UDF:
- rc = probe_udf(id, off);
- break;
- case VOLUME_ID_ISO9660:
- rc = probe_iso9660(id, off);
- break;
- case VOLUME_ID_MACPARTMAP:
- rc = probe_mac_partition_map(id, off);
- break;
- case VOLUME_ID_HFS:
- case VOLUME_ID_HFSPLUS:
- rc = probe_hfs_hfsplus(id, off);
- break;
- case VOLUME_ID_UFS:
- rc = probe_ufs(id, off);
- break;
- case VOLUME_ID_NTFS:
- rc = probe_ntfs(id, off);
- break;
- case VOLUME_ID_SWAP:
- rc = probe_swap(id, off);
- break;
- case VOLUME_ID_LINUX_RAID:
- rc = probe_linux_raid(id, off, size);
- break;
- case VOLUME_ID_LVM1:
- rc = probe_lvm1(id, off);
- break;
- case VOLUME_ID_LVM2:
- rc = probe_lvm2(id, off);
- break;
- case VOLUME_ID_HPTRAID:
- rc = probe_highpoint_ataraid(id, off);
- break;
- case VOLUME_ID_ALL:
- default:
- /* probe for raid first, cause fs probes may be successful on raid members */
- rc = probe_linux_raid(id, off, size);
- if (rc == 0)
- break;
- rc = probe_lvm1(id, off);
- if (rc == 0)
- break;
- rc = probe_lvm2(id, off);
- if (rc == 0)
- break;
- rc = probe_highpoint_ataraid(id, off);
- if (rc == 0)
- break;
-
- /* signature in the first block, only small buffer needed */
- rc = probe_vfat(id, off);
- if (rc == 0)
- break;
- rc = probe_mac_partition_map(id, off);
- if (rc == 0)
- break;
- rc = probe_xfs(id, off);
- if (rc == 0)
- break;
-
- /* fill buffer with maximum */
- get_buffer(id, 0, SB_BUFFER_SIZE);
-
- rc = probe_swap(id, off);
- if (rc == 0)
- break;
- rc = probe_ext(id, off);
- if (rc == 0)
- break;
- rc = probe_reiserfs(id, off);
- if (rc == 0)
- break;
- rc = probe_jfs(id, off);
- if (rc == 0)
- break;
- rc = probe_udf(id, off);
- if (rc == 0)
- break;
- rc = probe_iso9660(id, off);
- if (rc == 0)
- break;
- rc = probe_hfs_hfsplus(id, off);
- if (rc == 0)
- break;
- rc = probe_ufs(id, off);
- if (rc == 0)
- break;
- rc = probe_ntfs(id, off);
- if (rc == 0)
- break;
-
- rc = -1;
- }
-
- /* If the filestystem in recognized, we free the allocated buffers,
- otherwise they will stay in place for the possible next probe call */
- if (rc == 0)
- free_buffer(id);
-
- return rc;
-}
-
-/* open volume by already open file descriptor */
-struct volume_id *volume_id_open_fd(int fd)
-{
- struct volume_id *id;
-
- id = malloc(sizeof(struct volume_id));
- if (id == NULL)
- return NULL;
- memset(id, 0x00, sizeof(struct volume_id));
-
- id->fd = fd;
-
- return id;
-}
-
-/* open volume by device node */
-struct volume_id *volume_id_open_node(const char *path)
-{
- struct volume_id *id;
- int fd;
-
- fd = open(path, O_RDONLY);
- if (fd < 0) {
- dbg("unable to open '%s'", path);
- return NULL;
- }
-
- id = volume_id_open_fd(fd);
- if (id == NULL)
- return NULL;
-
- /* close fd on device close */
- id->fd_close = 1;
-
- return id;
-}
-
-/* open volume by major/minor */
-struct volume_id *volume_id_open_dev_t(dev_t devt)
-{
- struct volume_id *id;
- __u8 tmp_node[VOLUME_ID_PATH_MAX];
-
- snprintf(tmp_node, VOLUME_ID_PATH_MAX,
- "/tmp/volume-%u-%u-%u", getpid(), major(devt), minor(devt));
- tmp_node[VOLUME_ID_PATH_MAX] = '\0';
-
- /* create tempory node to open the block device */
- unlink(tmp_node);
- if (mknod(tmp_node, (S_IFBLK | 0600), devt) != 0)
- return NULL;
-
- id = volume_id_open_node(tmp_node);
-
- unlink(tmp_node);
-
- return id;
-}
-
-/* free allocated volume info */
-void volume_id_close(struct volume_id *id)
-{
- if (id == NULL)
- return;
-
- if (id->fd_close != 0)
- close(id->fd);
-
- free_buffer(id);
-
- if (id->partitions != NULL)
- free(id->partitions);
-
- free(id);
-}
*
*/
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
+#include <asm/types.h>
-#include "dasdlabel.h"
+#include "../volume_id.h"
+#include "../util.h"
+#include "dasd.h"
static unsigned char EBCtoASC[256] =
{
0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07
};
-static void vtoc_ebcdic_dec (unsigned char *source, unsigned char *target, int l)
+static void vtoc_ebcdic_dec (const unsigned char *source, unsigned char *target, int l)
{
int i;
#define BIODASDINFO _IOR(DASD_IOCTL_LETTER,1,dasd_information_t)
#define BLKSSZGET _IO(0x12,104)
-int probe_ibm_partition(int fd, char *out)
+int probe_ibm_partition(struct volume_id *id)
{
int blocksize;
dasd_information_t info;
- char name[7] = {0,};
- unsigned char data[16];
+ __u8 *data;
+ __u8 *label_raw;
+ unsigned char name[7];
- if (ioctl(fd, BIODASDINFO, (unsigned long)&info) != 0)
+ if (ioctl(id->fd, BIODASDINFO, &info) != 0)
return -1;
- if (ioctl(fd, BLKSSZGET, (unsigned long)&blocksize))
+ if (ioctl(id->fd, BLKSSZGET, &blocksize) != 0)
return -1;
- lseek(fd, info.label_block * blocksize, SEEK_SET);
- if (read(fd, &data, 16) != 16)
+ data = volume_id_get_buffer(id, info.label_block * blocksize, 16);
+ if (data == NULL)
return -1;
if ((!info.FBA_layout) && (!strcmp(info.type, "ECKD")))
- strncpy(name, data + 8, 6);
+ label_raw = &data[8];
else
- strncpy(name, data + 4, 6);
-
- vtoc_ebcdic_dec(name, out, 6);
+ label_raw = &data[4];
+
+ name[6] = '\0';
+ volume_id_set_usage(id, VOLUME_ID_DISKLABEL);
+ id->type = "dasd";
+ volume_id_set_label_raw(id, label_raw, 6);
+ vtoc_ebcdic_dec(label_raw, name, 6);
+ volume_id_set_label_string(id, name, 6);
return 0;
}
*
*/
-#ifndef _DASDLABEL_H_
-#define _DASDLABEL_H_
+#ifndef _VOLUME_ID_DASDLABEL_
+#define _VOLUME_ID_DASDLABEL_
-extern int probe_ibm_partition(int fd, char *out);
+extern int probe_ibm_partition(struct volume_id *id);
#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../util.h"
+#include "../logging.h"
+#include "ext.h"
+
+#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, __u64 off)
+{
+ struct ext2_super_block {
+ __u32 inodes_count;
+ __u32 blocks_count;
+ __u32 r_blocks_count;
+ __u32 free_blocks_count;
+ __u32 free_inodes_count;
+ __u32 first_data_block;
+ __u32 log_block_size;
+ __u32 dummy3[7];
+ __u8 magic[2];
+ __u16 state;
+ __u32 dummy5[8];
+ __u32 feature_compat;
+ __u32 feature_incompat;
+ __u32 feature_ro_compat;
+ __u8 uuid[16];
+ __u8 volume_name[16];
+ } __attribute__((__packed__)) *es;
+
+ es = (struct ext2_super_block *) 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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_EXT_
+#define _VOLUME_ID_EXT_
+
+extern int volume_id_probe_ext(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "fat.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 {
+ __u8 boot_jump[3];
+ __u8 sysid[8];
+ __u16 sector_size;
+ __u8 sectors_per_cluster;
+ __u16 reserved;
+ __u8 fats;
+ __u16 dir_entries;
+ __u16 sectors;
+ __u8 media;
+ __u16 fat_length;
+ __u16 secs_track;
+ __u16 heads;
+ __u32 hidden;
+ __u32 total_sect;
+ union {
+ struct fat_super_block {
+ __u8 unknown[3];
+ __u8 serno[4];
+ __u8 label[11];
+ __u8 magic[8];
+ __u8 dummy2[192];
+ __u8 pmagic[2];
+ } __attribute__((__packed__)) fat;
+ struct fat32_super_block {
+ __u32 fat32_length;
+ __u16 flags;
+ __u8 version[2];
+ __u32 root_cluster;
+ __u16 insfo_sector;
+ __u16 backup_boot;
+ __u16 reserved2[6];
+ __u8 unknown[3];
+ __u8 serno[4];
+ __u8 label[11];
+ __u8 magic[8];
+ __u8 dummy2[164];
+ __u8 pmagic[2];
+ } __attribute__((__packed__)) fat32;
+ } __attribute__((__packed__)) type;
+} __attribute__((__packed__));
+
+struct vfat_dir_entry {
+ __u8 name[11];
+ __u8 attr;
+ __u16 time_creat;
+ __u16 date_creat;
+ __u16 time_acc;
+ __u16 date_acc;
+ __u16 cluster_high;
+ __u16 time_write;
+ __u16 date_write;
+ __u16 cluster_low;
+ __u32 size;
+} __attribute__((__packed__));
+
+static char *get_attr_volume_id(struct vfat_dir_entry *dir, unsigned int count)
+{
+ unsigned int 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, __u64 off)
+{
+ struct vfat_super_block *vs;
+ struct vfat_dir_entry *dir;
+ __u16 sector_size;
+ __u16 dir_entries;
+ __u32 sect_count;
+ __u16 reserved;
+ __u32 fat_size;
+ __u32 root_cluster;
+ __u32 dir_size;
+ __u32 cluster_count;
+ __u32 fat_length;
+ __u64 root_start;
+ __u32 start_data_sect;
+ __u16 root_dir_entries;
+ __u8 *buf;
+ __u32 buf_size;
+ __u8 *label = NULL;
+ __u32 next;
+ int maxloop;
+
+ vs = (struct vfat_super_block *) 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 (strncmp(vs->sysid, "NTFS", 4) == 0)
+ return -1;
+
+ if (strncmp(vs->type.fat32.magic, "MSWIN", 5) == 0)
+ goto valid;
+
+ if (strncmp(vs->type.fat32.magic, "FAT32 ", 8) == 0)
+ goto valid;
+
+ if (strncmp(vs->type.fat.magic, "FAT16 ", 8) == 0)
+ goto valid;
+
+ if (strncmp(vs->type.fat.magic, "MSDOS", 5) == 0)
+ goto valid;
+
+ if (strncmp(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", 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 = (struct vfat_super_block *) volume_id_get_buffer(id, off, 0x200);
+ if (vs == NULL)
+ return -1;
+
+ if (label != NULL && strncmp(label, "NO NAME ", 11) != 0) {
+ volume_id_set_label_raw(id, label, 11);
+ volume_id_set_label_string(id, label, 11);
+ } else if (strncmp(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) {
+ __u32 next_sect_off;
+ __u64 next_off;
+ __u64 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", 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(__u32));
+ buf = volume_id_get_buffer(id, off + fat_entry_off, buf_size);
+ if (buf == NULL)
+ goto found;
+
+ /* set next cluster */
+ next = le32_to_cpu(*((__u32 *) buf) & 0x0fffffff);
+ if (next == 0)
+ break;
+ }
+ if (maxloop == 0)
+ dbg("reached maximum follow count of root cluster chain, give up");
+
+ vs = (struct vfat_super_block *) volume_id_get_buffer(id, off, 0x200);
+ if (vs == NULL)
+ return -1;
+
+ if (label != NULL && strncmp(label, "NO NAME ", 11) != 0) {
+ volume_id_set_label_raw(id, label, 11);
+ volume_id_set_label_string(id, label, 11);
+ } else if (strncmp(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_DISKLABEL);
+ id->type = "vfat";
+
+ return 0;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_FAT_
+#define _VOLUME_ID_FAT_
+
+extern int volume_id_probe_vfat(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "hfs.h"
+
+#define HFS_SUPERBLOCK_OFFSET 0x400
+#define HFS_NODE_LEAF 0xff
+#define HFSPLUS_POR_CNID 1
+#define HFSPLUS_EXTENT_COUNT 8
+
+int volume_id_probe_hfs_hfsplus(struct volume_id *id, __u64 off)
+{
+ struct hfs_finder_info{
+ __u32 boot_folder;
+ __u32 start_app;
+ __u32 open_folder;
+ __u32 os9_folder;
+ __u32 reserved;
+ __u32 osx_folder;
+ __u8 id[8];
+ } __attribute__((__packed__));
+
+ struct hfs_mdb {
+ __u8 signature[2];
+ __u32 cr_date;
+ __u32 ls_Mod;
+ __u16 atrb;
+ __u16 nm_fls;
+ __u16 vbm_st;
+ __u16 alloc_ptr;
+ __u16 nm_al_blks;
+ __u32 al_blk_size;
+ __u32 clp_size;
+ __u16 al_bl_st;
+ __u32 nxt_cnid;
+ __u16 free_bks;
+ __u8 label_len;
+ __u8 label[27];
+ __u32 vol_bkup;
+ __u16 vol_seq_num;
+ __u32 wr_cnt;
+ __u32 xt_clump_size;
+ __u32 ct_clump_size;
+ __u16 num_root_dirs;
+ __u32 file_count;
+ __u32 dir_count;
+ struct hfs_finder_info finder_info;
+ __u8 embed_sig[2];
+ __u16 embed_startblock;
+ __u16 embed_blockcount;
+ } __attribute__((__packed__)) *hfs;
+
+ struct hfsplus_bnode_descriptor {
+ __u32 next;
+ __u32 prev;
+ __u8 type;
+ __u8 height;
+ __u16 num_recs;
+ __u16 reserved;
+ } __attribute__((__packed__));
+
+ struct hfsplus_bheader_record {
+ __u16 depth;
+ __u32 root;
+ __u32 leaf_count;
+ __u32 leaf_head;
+ __u32 leaf_tail;
+ __u16 node_size;
+ } __attribute__((__packed__));
+
+ struct hfsplus_catalog_key {
+ __u16 key_len;
+ __u32 parent_id;
+ __u16 unicode_len;
+ __u8 unicode[255 * 2];
+ } __attribute__((__packed__));
+
+ struct hfsplus_extent {
+ __u32 start_block;
+ __u32 block_count;
+ } __attribute__((__packed__));
+
+ struct hfsplus_fork {
+ __u64 total_size;
+ __u32 clump_size;
+ __u32 total_blocks;
+ struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
+ } __attribute__((__packed__));
+
+ struct hfsplus_vol_header {
+ __u8 signature[2];
+ __u16 version;
+ __u32 attributes;
+ __u32 last_mount_vers;
+ __u32 reserved;
+ __u32 create_date;
+ __u32 modify_date;
+ __u32 backup_date;
+ __u32 checked_date;
+ __u32 file_count;
+ __u32 folder_count;
+ __u32 blocksize;
+ __u32 total_blocks;
+ __u32 free_blocks;
+ __u32 next_alloc;
+ __u32 rsrc_clump_sz;
+ __u32 data_clump_sz;
+ __u32 next_cnid;
+ __u32 write_count;
+ __u64 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__)) *hfsplus;
+
+ unsigned int blocksize;
+ unsigned int cat_block;
+ unsigned int ext_block_start;
+ unsigned int ext_block_count;
+ int ext;
+ unsigned int leaf_node_head;
+ unsigned int leaf_node_count;
+ unsigned int leaf_node_size;
+ unsigned int leaf_block;
+ __u64 leaf_off;
+ unsigned int alloc_block_size;
+ unsigned int alloc_first_block;
+ unsigned int embed_first_block;
+ unsigned int record_count;
+ struct hfsplus_bnode_descriptor *descr;
+ struct hfsplus_bheader_record *bnode;
+ struct hfsplus_catalog_key *key;
+ unsigned int label_len;
+ struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
+ const __u8 *buf;
+
+ buf = volume_id_get_buffer(id, off + HFS_SUPERBLOCK_OFFSET, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ hfs = (struct hfs_mdb *) buf;
+ if (strncmp(hfs->signature, "BD", 2) != 0)
+ goto checkplus;
+
+ /* it may be just a hfs wrapper for hfs+ */
+ if (strncmp(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", 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 (strncmp(hfsplus->signature, "H+", 2) == 0)
+ goto hfsplus;
+ if (strncmp(hfsplus->signature, "HX", 2) == 0)
+ 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 (be32_to_cpu(key->parent_id) != 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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_HFS_
+#define _VOLUME_ID_HFS_
+
+extern int volume_id_probe_hfs_hfsplus(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "highpoint.h"
+
+#define HPT37X_CONFIG_OFF 0x1200
+#define HPT37X_MAGIC_OK 0x5a7816f0
+#define HPT37X_MAGIC_BAD 0x5a7816fd
+
+int volume_id_probe_highpoint_ataraid(struct volume_id *id, __u64 off)
+{
+ struct hpt37x {
+ __u8 filler1[32];
+ __u32 magic;
+ __u32 magic_0;
+ __u32 magic_1;
+ } __attribute__((packed)) *hpt;
+
+ const __u8 *buf;
+
+ buf = volume_id_get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ hpt = (struct hpt37x *) buf;
+
+ if (hpt->magic != HPT37X_MAGIC_OK && hpt->magic != HPT37X_MAGIC_BAD)
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "hpt_ataraid_member";
+
+ return 0;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_HIGHPOINT_
+#define _VOLUME_ID_HIGHPOINT_
+
+extern int volume_id_probe_highpoint_ataraid(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "iso9660.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
+
+int volume_id_probe_iso9660(struct volume_id *id, __u64 off)
+{
+ union iso_super_block {
+ struct iso_header {
+ __u8 type;
+ __u8 id[5];
+ __u8 version;
+ __u8 unused1;
+ __u8 system_id[32];
+ __u8 volume_id[32];
+ } __attribute__((__packed__)) iso;
+ struct hs_header {
+ __u8 foo[8];
+ __u8 type;
+ __u8 id[4];
+ __u8 version;
+ } __attribute__((__packed__)) hs;
+ } __attribute__((__packed__)) *is;
+
+ is = (union iso_super_block *) volume_id_get_buffer(id, off + ISO_SUPERBLOCK_OFFSET, 0x200);
+ if (is == NULL)
+ return -1;
+
+ if (strncmp(is->iso.id, "CD001", 5) == 0) {
+ char root_label[VOLUME_ID_LABEL_SIZE+1];
+ int vd_offset;
+ int i;
+ int found_svd;
+
+ memset(root_label, 0, sizeof(root_label));
+ strncpy(root_label, is->iso.volume_id, sizeof(root_label)-1);
+
+ found_svd = 0;
+ vd_offset = ISO_VD_OFFSET;
+ for (i = 0; i < ISO_VD_MAX; i++) {
+ is = (union iso_super_block *) volume_id_get_buffer(id, off + vd_offset, 0x200);
+ if (is == NULL || is->iso.type == ISO_VD_END)
+ break;
+ if (is->iso.type == ISO_VD_SUPPLEMENTARY) {
+ dbg("found ISO supplementary VD at offset 0x%llx", off + vd_offset);
+ volume_id_set_label_raw(id, is->iso.volume_id, 32);
+ volume_id_set_label_unicode16(id, is->iso.volume_id, BE, 32);
+ found_svd = 1;
+ break;
+ }
+ vd_offset += ISO_SECTOR_SIZE;
+ }
+
+ if (!found_svd ||
+ (found_svd && !strncmp(root_label, id->label, 16)))
+ {
+ volume_id_set_label_raw(id, root_label, 32);
+ volume_id_set_label_string(id, root_label, 32);
+ }
+ goto found;
+ }
+ if (strncmp(is->hs.id, "CDROM", 5) == 0)
+ goto found;
+ return -1;
+
+found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "iso9660";
+
+ return 0;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_ISO9660_
+#define _VOLUME_ID_ISO9660_
+
+extern int volume_id_probe_iso9660(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "jfs.h"
+
+#define JFS_SUPERBLOCK_OFFSET 0x8000
+
+int volume_id_probe_jfs(struct volume_id *id, __u64 off)
+{
+ struct jfs_super_block {
+ __u8 magic[4];
+ __u32 version;
+ __u64 size;
+ __u32 bsize;
+ __u32 dummy1;
+ __u32 pbsize;
+ __u32 dummy2[27];
+ __u8 uuid[16];
+ __u8 label[16];
+ __u8 loguuid[16];
+ } __attribute__((__packed__)) *js;
+
+ js = (struct jfs_super_block *) volume_id_get_buffer(id, off + JFS_SUPERBLOCK_OFFSET, 0x200);
+ if (js == NULL)
+ return -1;
+
+ if (strncmp(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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_JFS_
+#define _VOLUME_ID_JFS_
+
+extern int volume_id_probe_jfs(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "linux_raid.h"
+
+#define MD_RESERVED_BYTES 0x10000
+#define MD_MAGIC 0xa92b4efc
+
+int volume_id_probe_linux_raid(struct volume_id *id, __u64 off, __u64 size)
+{
+ struct mdp_super_block {
+ __u32 md_magic;
+ __u32 major_version;
+ __u32 minor_version;
+ __u32 patch_version;
+ __u32 gvalid_words;
+ __u32 set_uuid0;
+ __u32 ctime;
+ __u32 level;
+ __u32 size;
+ __u32 nr_disks;
+ __u32 raid_disks;
+ __u32 md_minor;
+ __u32 not_persistent;
+ __u32 set_uuid1;
+ __u32 set_uuid2;
+ __u32 set_uuid3;
+ } __attribute__((packed)) *mdp;
+
+ const __u8 *buf;
+ __u64 sboff;
+ __u8 uuid[16];
+
+ if (size < 0x10000)
+ return -1;
+
+ sboff = (size & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES;
+ buf = volume_id_get_buffer(id, off + sboff, 0x800);
+ if (buf == NULL)
+ return -1;
+
+ mdp = (struct mdp_super_block *) buf;
+
+ if (le32_to_cpu(mdp->md_magic) != 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, VOLUME_ID_FORMAT_SIZE-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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_LINUX_RAID_
+#define _VOLUME_ID_LINUX_RAID_
+
+extern int volume_id_probe_linux_raid(struct volume_id *id, __u64 off, __u64 size);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "linux_swap.h"
+
+#define LARGEST_PAGESIZE 0x4000
+
+int volume_id_probe_linux_swap(struct volume_id *id, __u64 off)
+{
+ struct swap_header_v1_2 {
+ __u8 bootbits[1024];
+ __u32 version;
+ __u32 last_page;
+ __u32 nr_badpages;
+ __u8 uuid[16];
+ __u8 volume_name[16];
+ } __attribute__((__packed__)) *sw;
+
+ const __u8 *buf;
+ unsigned int page;
+
+ /* 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 (strncmp(buf, "SWAP-SPACE", 10) == 0) {
+ strcpy(id->type_version, "1");
+ goto found;
+ }
+
+ if (strncmp(buf, "SWAPSPACE2", 10) == 0) {
+ sw = (struct swap_header_v1_2 *) volume_id_get_buffer(id, off, sizeof(struct swap_header_v1_2));
+ if (sw == NULL)
+ return -1;
+ strcpy(id->type_version, "2");
+ 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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_LINUX_SWAP_
+#define _VOLUME_ID_LINUX_SWAP_
+
+extern int volume_id_probe_linux_swap(struct volume_id *id, __u64 off);
+
+#endif
/*
* volume_id_logging - this file is used to map the dbg() function
- * to the host logging facility
+ * to the user's logging facility
*
*/
#include <config.h>
#endif
-/* just use the udev version*/
+/* just use the udev version */
#include "../../logging.h"
#endif /* _VOLUME_ID_LOGGING_H_ */
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "lvm.h"
+
+#define LVM1_SB_OFF 0x400
+#define LVM1_MAGIC "HM"
+
+int volume_id_probe_lvm1(struct volume_id *id, __u64 off)
+{
+ struct lvm2_super_block {
+ __u8 id[2];
+ } __attribute__((packed)) *lvm;
+
+ const __u8 *buf;
+
+ buf = volume_id_get_buffer(id, off + LVM1_SB_OFF, 0x800);
+ if (buf == NULL)
+ return -1;
+
+ lvm = (struct lvm2_super_block *) buf;
+
+ if (strncmp(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, __u64 off)
+{
+ struct lvm2_super_block {
+ __u8 id[8];
+ __u64 sector_xl;
+ __u32 crc_xl;
+ __u32 offset_xl;
+ __u8 type[8];
+ } __attribute__((packed)) *lvm;
+
+ const __u8 *buf;
+ unsigned int soff;
+
+ 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 (strncmp(lvm->id, LVM2_LABEL_ID, 8) == 0)
+ goto found;
+ }
+
+ return -1;
+
+found:
+ strncpy(id->type_version, lvm->type, 8);
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "LVM2_member";
+
+ return 0;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_LVM_
+#define _VOLUME_ID_LVM_
+
+extern int volume_id_probe_lvm1(struct volume_id *id, __u64 off);
+extern int volume_id_probe_lvm2(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "mac.h"
+
+int volume_id_probe_mac_partition_map(struct volume_id *id, __u64 off)
+{
+ struct mac_driver_desc {
+ __u8 signature[2];
+ __u16 block_size;
+ __u32 block_count;
+ } __attribute__((__packed__)) *driver;
+
+ struct mac_partition {
+ __u8 signature[2];
+ __u16 res1;
+ __u32 map_count;
+ __u32 start_block;
+ __u32 block_count;
+ __u8 name[32];
+ __u8 type[32];
+ } __attribute__((__packed__)) *part;
+
+ const __u8 *buf;
+
+ buf = volume_id_get_buffer(id, off, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ part = (struct mac_partition *) buf;
+ if ((strncmp(part->signature, "PM", 2) == 0) &&
+ (strncmp(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 (strncmp(driver->signature, "ER", 2) == 0) {
+ /* we are on a main device, like a CD
+ * just try to probe the first partition from the map */
+ unsigned int bsize = be16_to_cpu(driver->block_size);
+ int part_count;
+ int i;
+
+ /* get first entry of partition table */
+ buf = volume_id_get_buffer(id, off + bsize, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ part = (struct mac_partition *) buf;
+ if (strncmp(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++) {
+ __u64 poff;
+ __u64 plen;
+
+ buf = volume_id_get_buffer(id, off + ((i+1) * bsize), 0x200);
+ if (buf == NULL)
+ return -1;
+
+ part = (struct mac_partition *) buf;
+ if (strncmp(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, poff, plen);
+
+ id->partitions[i].off = poff;
+ id->partitions[i].len = plen;
+
+ if (strncmp(part->type, "Apple_Free", 10) == 0) {
+ volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_UNUSED);
+ } else if (strncmp(part->type, "Apple_partition_map", 19) == 0) {
+ volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_PARTITIONTABLE);
+ } else {
+ volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_UNPROBED);
+ }
+ }
+ volume_id_set_usage(id, VOLUME_ID_PARTITIONTABLE);
+ id->type = "mac_partition_map";
+ return 0;
+ }
+
+ return -1;
+}
--- /dev/null
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This 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
+ */
+
+#ifndef _VOLUME_ID_MAC_
+#define _VOLUME_ID_MAC_
+
+extern int volume_id_probe_mac_partition_map(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "msdos.h"
+
+#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, __u64 off)
+{
+ struct msdos_partition_entry {
+ __u8 boot_ind;
+ __u8 head;
+ __u8 sector;
+ __u8 cyl;
+ __u8 sys_ind;
+ __u8 end_head;
+ __u8 end_sector;
+ __u8 end_cyl;
+ __u32 start_sect;
+ __u32 nr_sects;
+ } __attribute__((packed)) *part;
+
+ const __u8 *buf;
+ int i;
+ __u64 poff;
+ __u64 plen;
+ __u64 extended = 0;
+ __u64 current;
+ __u64 next;
+ int limit;
+ int empty = 1;
+ struct volume_id_partition *p;
+
+ buf = volume_id_get_buffer(id, off, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ if (strncmp(&buf[MSDOS_SIG_OFF], MSDOS_MAGIC, 2) != 0)
+ return -1;
+
+ /* check flags on all entries for a valid partition table */
+ part = (struct msdos_partition_entry*) &buf[MSDOS_PARTTABLE_OFFSET];
+ for (i = 0; i < 4; i++) {
+ if (part[i].boot_ind != 0 &&
+ part[i].boot_ind != 0x80)
+ return -1;
+
+ if (le32_to_cpu(part[i].nr_sects) != 0)
+ empty = 0;
+ }
+ if (empty == 1)
+ return -1;
+
+ if (id->partitions != NULL)
+ free(id->partitions);
+ id->partitions = malloc(VOLUME_ID_PARTITIONS_MAX *
+ sizeof(struct volume_id_partition));
+ if (id->partitions == NULL)
+ return -1;
+ memset(id->partitions, 0x00,
+ VOLUME_ID_PARTITIONS_MAX * sizeof(struct volume_id_partition));
+
+ for (i = 0; i < 4; i++) {
+ poff = (__u64) le32_to_cpu(part[i].start_sect) * BSIZE;
+ plen = (__u64) 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", 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, poff, 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 (strncmp(&buf[MSDOS_SIG_OFF], MSDOS_MAGIC, 2) != 0)
+ break;
+
+ next = 0;
+
+ for (i = 0; i < 4; i++) {
+ poff = (__u64) le32_to_cpu(part[i].start_sect) * BSIZE;
+ plen = (__u64) 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", poff);
+ if (next == 0)
+ next = extended + poff;
+ } else {
+ dbg("found 0x%x data partition at 0x%llx, len 0x%llx",
+ part[i].sys_ind, poff, 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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_MSDOS_
+#define _VOLUME_ID_MSDOS_
+
+extern int volume_id_probe_msdos_part_table(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "ntfs.h"
+
+#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, __u64 off)
+{
+ struct ntfs_super_block {
+ __u8 jump[3];
+ __u8 oem_id[8];
+ __u16 bytes_per_sector;
+ __u8 sectors_per_cluster;
+ __u16 reserved_sectors;
+ __u8 fats;
+ __u16 root_entries;
+ __u16 sectors;
+ __u8 media_type;
+ __u16 sectors_per_fat;
+ __u16 sectors_per_track;
+ __u16 heads;
+ __u32 hidden_sectors;
+ __u32 large_sectors;
+ __u16 unused[2];
+ __u64 number_of_sectors;
+ __u64 mft_cluster_location;
+ __u64 mft_mirror_cluster_location;
+ __s8 cluster_per_mft_record;
+ __u8 reserved1[3];
+ __s8 cluster_per_index_record;
+ __u8 reserved2[3];
+ __u8 volume_serial[8];
+ __u16 checksum;
+ } __attribute__((__packed__)) *ns;
+
+ struct master_file_table_record {
+ __u8 magic[4];
+ __u16 usa_ofs;
+ __u16 usa_count;
+ __u64 lsn;
+ __u16 sequence_number;
+ __u16 link_count;
+ __u16 attrs_offset;
+ __u16 flags;
+ __u32 bytes_in_use;
+ __u32 bytes_allocated;
+ } __attribute__((__packed__)) *mftr;
+
+ struct file_attribute {
+ __u32 type;
+ __u32 len;
+ __u8 non_resident;
+ __u8 name_len;
+ __u16 name_offset;
+ __u16 flags;
+ __u16 instance;
+ __u32 value_len;
+ __u16 value_offset;
+ } __attribute__((__packed__)) *attr;
+
+ struct volume_info {
+ __u64 reserved;
+ __u8 major_ver;
+ __u8 minor_ver;
+ } __attribute__((__packed__)) *info;
+
+ unsigned int sector_size;
+ unsigned int cluster_size;
+ __u64 mft_cluster;
+ __u64 mft_off;
+ unsigned int mft_record_size;
+ unsigned int attr_type;
+ unsigned int attr_off;
+ unsigned int attr_len;
+ unsigned int val_off;
+ unsigned int val_len;
+ const __u8 *buf;
+ const __u8 *val;
+
+ ns = (struct ntfs_super_block *) volume_id_get_buffer(id, off, 0x200);
+ if (ns == NULL)
+ return -1;
+
+ if (strncmp(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 %lli", mft_cluster);
+ dbg("mftoffset 0x%llx", 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 (strncmp(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) {
+ 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) {
+ dbg("found info, len %i", val_len);
+ info = (struct volume_info*) (((__u8 *) attr) + val_off);
+ snprintf(id->type_version, VOLUME_ID_FORMAT_SIZE-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 = ((__u8 *) 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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_NTFS_
+#define _VOLUME_ID_NTFS_
+
+extern int volume_id_probe_ntfs(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "reiserfs.h"
+
+#define REISERFS1_SUPERBLOCK_OFFSET 0x2000
+#define REISERFS_SUPERBLOCK_OFFSET 0x10000
+
+int volume_id_probe_reiserfs(struct volume_id *id, __u64 off)
+{
+ struct reiserfs_super_block {
+ __u32 blocks_count;
+ __u32 free_blocks;
+ __u32 root_block;
+ __u32 journal_block;
+ __u32 journal_dev;
+ __u32 orig_journal_size;
+ __u32 dummy2[5];
+ __u16 blocksize;
+ __u16 dummy3[3];
+ __u8 magic[12];
+ __u32 dummy4[5];
+ __u8 uuid[16];
+ __u8 label[16];
+ } __attribute__((__packed__)) *rs;
+
+ rs = (struct reiserfs_super_block *) volume_id_get_buffer(id, off + REISERFS_SUPERBLOCK_OFFSET, 0x200);
+ if (rs == NULL)
+ return -1;
+
+ if (strncmp(rs->magic, "ReIsEr2Fs", 9) == 0) {
+ strcpy(id->type_version, "3.6");
+ goto found;
+ }
+
+ if (strncmp(rs->magic, "ReIsEr3Fs", 9) == 0) {
+ strcpy(id->type_version, "JR");
+ goto found;
+ }
+
+ rs = (struct reiserfs_super_block *) volume_id_get_buffer(id, off + REISERFS1_SUPERBLOCK_OFFSET, 0x200);
+ if (rs == NULL)
+ return -1;
+
+ if (strncmp(rs->magic, "ReIsErFs", 8) == 0) {
+ strcpy(id->type_version, "3.5");
+ goto found;
+ }
+
+ return -1;
+
+found:
+ 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);
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "reiserfs";
+
+ return 0;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_REISERFS_
+#define _VOLUME_ID_REISERFS_
+
+extern int volume_id_probe_reiserfs(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "udf.h"
+
+#define UDF_VSD_OFFSET 0x8000
+
+int volume_id_probe_udf(struct volume_id *id, __u64 off)
+{
+ struct volume_descriptor {
+ struct descriptor_tag {
+ __u16 id;
+ __u16 version;
+ __u8 checksum;
+ __u8 reserved;
+ __u16 serial;
+ __u16 crc;
+ __u16 crc_len;
+ __u32 location;
+ } __attribute__((__packed__)) tag;
+ union {
+ struct anchor_descriptor {
+ __u32 length;
+ __u32 location;
+ } __attribute__((__packed__)) anchor;
+ struct primary_descriptor {
+ __u32 seq_num;
+ __u32 desc_num;
+ struct dstring {
+ __u8 clen;
+ __u8 c[31];
+ } __attribute__((__packed__)) ident;
+ } __attribute__((__packed__)) primary;
+ } __attribute__((__packed__)) type;
+ } __attribute__((__packed__)) *vd;
+
+ struct volume_structure_descriptor {
+ __u8 type;
+ __u8 id[5];
+ __u8 version;
+ } *vsd;
+
+ unsigned int bs;
+ unsigned int b;
+ unsigned int type;
+ unsigned int count;
+ unsigned int loc;
+ unsigned int clen;
+
+ vsd = (struct volume_structure_descriptor *) volume_id_get_buffer(id, off + UDF_VSD_OFFSET, 0x200);
+ if (vsd == NULL)
+ return -1;
+
+ if (strncmp(vsd->id, "NSR02", 5) == 0)
+ goto blocksize;
+ if (strncmp(vsd->id, "NSR03", 5) == 0)
+ goto blocksize;
+ if (strncmp(vsd->id, "BEA01", 5) == 0)
+ goto blocksize;
+ if (strncmp(vsd->id, "BOOT2", 5) == 0)
+ goto blocksize;
+ if (strncmp(vsd->id, "CD001", 5) == 0)
+ goto blocksize;
+ if (strncmp(vsd->id, "CDW02", 5) == 0)
+ goto blocksize;
+ if (strncmp(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 = (struct volume_structure_descriptor *) 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 = (struct volume_structure_descriptor *) 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 (strncmp(vsd->id, "NSR02", 5) == 0)
+ goto anchor;
+ if (strncmp(vsd->id, "NSR03", 5) == 0)
+ goto anchor;
+ }
+ return -1;
+
+anchor:
+ /* read anchor volume descriptor */
+ vd = (struct volume_descriptor *) 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 = (struct volume_descriptor *) 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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_UDF_
+#define _VOLUME_ID_UDF_
+
+extern int volume_id_probe_udf(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "ufs.h"
+
+#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, __u64 off)
+{
+ struct ufs_super_block {
+ __u32 fs_link;
+ __u32 fs_rlink;
+ __u32 fs_sblkno;
+ __u32 fs_cblkno;
+ __u32 fs_iblkno;
+ __u32 fs_dblkno;
+ __u32 fs_cgoffset;
+ __u32 fs_cgmask;
+ __u32 fs_time;
+ __u32 fs_size;
+ __u32 fs_dsize;
+ __u32 fs_ncg;
+ __u32 fs_bsize;
+ __u32 fs_fsize;
+ __u32 fs_frag;
+ __u32 fs_minfree;
+ __u32 fs_rotdelay;
+ __u32 fs_rps;
+ __u32 fs_bmask;
+ __u32 fs_fmask;
+ __u32 fs_bshift;
+ __u32 fs_fshift;
+ __u32 fs_maxcontig;
+ __u32 fs_maxbpg;
+ __u32 fs_fragshift;
+ __u32 fs_fsbtodb;
+ __u32 fs_sbsize;
+ __u32 fs_csmask;
+ __u32 fs_csshift;
+ __u32 fs_nindir;
+ __u32 fs_inopb;
+ __u32 fs_nspf;
+ __u32 fs_optim;
+ __u32 fs_npsect_state;
+ __u32 fs_interleave;
+ __u32 fs_trackskew;
+ __u32 fs_id[2];
+ __u32 fs_csaddr;
+ __u32 fs_cssize;
+ __u32 fs_cgsize;
+ __u32 fs_ntrak;
+ __u32 fs_nsect;
+ __u32 fs_spc;
+ __u32 fs_ncyl;
+ __u32 fs_cpg;
+ __u32 fs_ipg;
+ __u32 fs_fpg;
+ struct ufs_csum {
+ __u32 cs_ndir;
+ __u32 cs_nbfree;
+ __u32 cs_nifree;
+ __u32 cs_nffree;
+ } __attribute__((__packed__)) fs_cstotal;
+ __s8 fs_fmod;
+ __s8 fs_clean;
+ __s8 fs_ronly;
+ __s8 fs_flags;
+ union {
+ struct {
+ __s8 fs_fsmnt[512];
+ __u32 fs_cgrotor;
+ __u32 fs_csp[31];
+ __u32 fs_maxcluster;
+ __u32 fs_cpc;
+ __u16 fs_opostbl[16][8];
+ } __attribute__((__packed__)) fs_u1;
+ struct {
+ __s8 fs_fsmnt[468];
+ __u8 fs_volname[32];
+ __u64 fs_swuid;
+ __s32 fs_pad;
+ __u32 fs_cgrotor;
+ __u32 fs_ocsp[28];
+ __u32 fs_contigdirs;
+ __u32 fs_csp;
+ __u32 fs_maxcluster;
+ __u32 fs_active;
+ __s32 fs_old_cpc;
+ __s32 fs_maxbsize;
+ __s64 fs_sparecon64[17];
+ __s64 fs_sblockloc;
+ struct ufs2_csum_total {
+ __u64 cs_ndir;
+ __u64 cs_nbfree;
+ __u64 cs_nifree;
+ __u64 cs_nffree;
+ __u64 cs_numclusters;
+ __u64 cs_spare[3];
+ } __attribute__((__packed__)) fs_cstotal;
+ struct ufs_timeval {
+ __s32 tv_sec;
+ __s32 tv_usec;
+ } __attribute__((__packed__)) fs_time;
+ __s64 fs_size;
+ __s64 fs_dsize;
+ __u64 fs_csaddr;
+ __s64 fs_pendingblocks;
+ __s32 fs_pendinginodes;
+ } __attribute__((__packed__)) fs_u2;
+ } fs_u11;
+ union {
+ struct {
+ __s32 fs_sparecon[53];
+ __s32 fs_reclaim;
+ __s32 fs_sparecon2[1];
+ __s32 fs_state;
+ __u32 fs_qbmask[2];
+ __u32 fs_qfmask[2];
+ } __attribute__((__packed__)) fs_sun;
+ struct {
+ __s32 fs_sparecon[53];
+ __s32 fs_reclaim;
+ __s32 fs_sparecon2[1];
+ __u32 fs_npsect;
+ __u32 fs_qbmask[2];
+ __u32 fs_qfmask[2];
+ } __attribute__((__packed__)) fs_sunx86;
+ struct {
+ __s32 fs_sparecon[50];
+ __s32 fs_contigsumsize;
+ __s32 fs_maxsymlinklen;
+ __s32 fs_inodefmt;
+ __u32 fs_maxfilesize[2];
+ __u32 fs_qbmask[2];
+ __u32 fs_qfmask[2];
+ __s32 fs_state;
+ } __attribute__((__packed__)) fs_44;
+ } fs_u2;
+ __s32 fs_postblformat;
+ __s32 fs_nrpos;
+ __s32 fs_postbloff;
+ __s32 fs_rotbloff;
+ __u32 fs_magic;
+ __u8 fs_space[1];
+ } __attribute__((__packed__)) *ufs;
+
+ __u32 magic;
+ int i;
+ int offsets[] = {0, 8, 64, 256, -1};
+
+ for (i = 0; offsets[i] >= 0; i++) {
+ ufs = (struct ufs_super_block *) volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
+ if (ufs == NULL)
+ return -1;
+
+ dbg("offset 0x%x", offsets[i] * 0x400);
+ magic = be32_to_cpu(ufs->fs_magic);
+ if ((magic == UFS_MAGIC) ||
+ (magic == UFS2_MAGIC) ||
+ (magic == UFS_MAGIC_FEA) ||
+ (magic == UFS_MAGIC_LFN)) {
+ dbg("magic 0x%08x(be)", magic);
+ goto found;
+ }
+ magic = le32_to_cpu(ufs->fs_magic);
+ if ((magic == UFS_MAGIC) ||
+ (magic == UFS2_MAGIC) ||
+ (magic == UFS_MAGIC_FEA) ||
+ (magic == 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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_UFS_
+#define _VOLUME_ID_UFS_
+
+extern int volume_id_probe_ufs(struct volume_id *id, __u64 off);
+
+#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <asm/types.h>
+
+#include "volume_id.h"
+#include "logging.h"
+#include "util.h"
+
+static 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_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 __u8 *buf, unsigned int count)
+{
+ memcpy(id->label_raw, buf, count);
+ id->label_raw_len = count;
+}
+
+void volume_id_set_label_string(struct volume_id *id, const __u8 *buf, unsigned int count)
+{
+ unsigned int 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 __u8 *buf, enum endian endianess, unsigned int count)
+{
+ unsigned int i, j;
+ __u16 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) {
+ id->label[j] = '\0';
+ break;
+ } else if (c < 0x80) {
+ id->label[j++] = (__u8) c;
+ } else if (c < 0x800) {
+ id->label[j++] = (__u8) (0xc0 | (c >> 6));
+ id->label[j++] = (__u8) (0x80 | (c & 0x3f));
+ } else {
+ id->label[j++] = (__u8) (0xe0 | (c >> 12));
+ id->label[j++] = (__u8) (0x80 | ((c >> 6) & 0x3f));
+ id->label[j++] = (__u8) (0x80 | (c & 0x3f));
+ }
+ }
+}
+
+void volume_id_set_uuid(struct volume_id *id, const __u8 *buf, enum uuid_format format)
+{
+ unsigned int i;
+ unsigned int count = 0;
+
+ switch(format) {
+ case UUID_DOS:
+ count = 4;
+ break;
+ case UUID_NTFS:
+ case UUID_HFS:
+ count = 8;
+ break;
+ case UUID_DCE:
+ count = 16;
+ }
+ memcpy(id->uuid_raw, buf, 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;
+ }
+}
+
+__u8 *volume_id_get_buffer(struct volume_id *id, __u64 off, unsigned int len)
+{
+ unsigned int buf_len;
+
+ dbg("get buffer off 0x%llx(%llu), len 0x%x", off, off, len);
+ /* check if requested area fits in superblock buffer */
+ if (off + len <= SB_BUFFER_SIZE) {
+ if (id->sbbuf == NULL) {
+ id->sbbuf = malloc(SB_BUFFER_SIZE);
+ if (id->sbbuf == NULL)
+ return NULL;
+ }
+
+ /* check if we need to read */
+ if ((off + len) > id->sbbuf_len) {
+ dbg("read sbbuf len:0x%llx", off + len);
+ lseek(id->fd, 0, SEEK_SET);
+ buf_len = read(id->fd, id->sbbuf, off + len);
+ dbg("got 0x%x (%i) bytes", buf_len, buf_len);
+ id->sbbuf_len = buf_len;
+ if (buf_len < off + len)
+ return NULL;
+ }
+
+ return &(id->sbbuf[off]);
+ } else {
+ 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 = malloc(SEEK_BUFFER_SIZE);
+ if (id->seekbuf == NULL)
+ return NULL;
+ }
+
+ /* 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%x", off, len);
+ if (lseek(id->fd, off, SEEK_SET) == -1)
+ return NULL;
+ buf_len = read(id->fd, id->seekbuf, len);
+ dbg("got 0x%x (%i) bytes", buf_len, buf_len);
+ id->seekbuf_off = off;
+ id->seekbuf_len = buf_len;
+ if (buf_len < len) {
+ dbg("requested 0x%x bytes, got only 0x%x bytes", len, buf_len);
+ return NULL;
+ }
+ }
+
+ return &(id->seekbuf[off - id->seekbuf_off]);
+ }
+}
+
+void volume_id_free_buffer(struct volume_id *id)
+{
+ if (id->sbbuf != NULL) {
+ free(id->sbbuf);
+ id->sbbuf = NULL;
+ id->sbbuf_len = 0;
+ }
+ if (id->seekbuf != NULL) {
+ free(id->seekbuf);
+ id->seekbuf = NULL;
+ id->seekbuf_len = 0;
+ }
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID_UTIL_
+#define _VOLUME_ID_UTIL_
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* 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
+
+/* probe volume for all known filesystems in specific order */
+#define bswap16(x) (__u16)((((__u16)(x) & 0x00ffu) << 8) | \
+ (((__u16)(x) & 0xff00u) >> 8))
+
+#define bswap32(x) (__u32)((((__u32)(x) & 0xff000000u) >> 24) | \
+ (((__u32)(x) & 0x00ff0000u) >> 8) | \
+ (((__u32)(x) & 0x0000ff00u) << 8) | \
+ (((__u32)(x) & 0x000000ffu) << 24))
+
+#define bswap64(x) (__u64)((((__u64)(x) & 0xff00000000000000ull) >> 56) | \
+ (((__u64)(x) & 0x00ff000000000000ull) >> 40) | \
+ (((__u64)(x) & 0x0000ff0000000000ull) >> 24) | \
+ (((__u64)(x) & 0x000000ff00000000ull) >> 8) | \
+ (((__u64)(x) & 0x00000000ff000000ull) << 8) | \
+ (((__u64)(x) & 0x0000000000ff0000ull) << 24) | \
+ (((__u64)(x) & 0x000000000000ff00ull) << 40) | \
+ (((__u64)(x) & 0x00000000000000ffull) << 56))
+
+#if (__BYTE_ORDER == __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)
+#elif (__BYTE_ORDER == __BIG_ENDIAN)
+#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)
+#endif
+
+enum uuid_format {
+ UUID_DCE,
+ UUID_DOS,
+ UUID_NTFS,
+ UUID_HFS,
+};
+
+enum endian {
+ LE = 0,
+ BE = 1
+};
+
+extern void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
+extern void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
+extern void volume_id_set_label_raw(struct volume_id *id, const __u8 *buf, unsigned int count);
+extern void volume_id_set_label_string(struct volume_id *id, const __u8 *buf, unsigned int count);
+extern void volume_id_set_label_unicode16(struct volume_id *id, const __u8 *buf, enum endian endianess, unsigned int count);
+extern void volume_id_set_uuid(struct volume_id *id, const __u8 *buf, enum uuid_format format);
+extern __u8 *volume_id_get_buffer(struct volume_id *id, __u64 off, unsigned int len);
+extern void volume_id_free_buffer(struct volume_id *id);
+
+#endif /* _VOLUME_ID_UTIL_ */
+
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <errno.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <asm/types.h>
+
+#include "volume_id.h"
+#include "logging.h"
+#include "util.h"
+
+#include "ext/ext.h"
+#include "reiserfs/reiserfs.h"
+#include "fat/fat.h"
+#include "hfs/hfs.h"
+#include "jfs/jfs.h"
+#include "xfs/xfs.h"
+#include "ufs/ufs.h"
+#include "ntfs/ntfs.h"
+#include "iso9660/iso9660.h"
+#include "udf/udf.h"
+#include "highpoint/highpoint.h"
+#include "linux_swap/linux_swap.h"
+#include "linux_raid/linux_raid.h"
+#include "lvm/lvm.h"
+#include "mac/mac.h"
+#include "msdos/msdos.h"
+
+int volume_id_probe_all(struct volume_id *id, unsigned long long off, unsigned long long size)
+{
+ if (id == NULL)
+ return -EINVAL;
+
+ /* probe for raid first, cause fs probes may be successful on raid members */
+ if (volume_id_probe_linux_raid(id, off, size) == 0)
+ goto exit;
+
+ if (volume_id_probe_lvm1(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_lvm2(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_highpoint_ataraid(id, off) == 0)
+ goto exit;
+
+ /* signature in the first block, only small buffer needed */
+ if (volume_id_probe_vfat(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_mac_partition_map(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_xfs(id, off) == 0)
+ goto exit;
+
+ /* fill buffer with maximum */
+ volume_id_get_buffer(id, 0, SB_BUFFER_SIZE);
+
+ if (volume_id_probe_linux_swap(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_ext(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_reiserfs(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_jfs(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_udf(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_iso9660(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_hfs_hfsplus(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_ufs(id, off) == 0)
+ goto exit;
+
+ if (volume_id_probe_ntfs(id, off) == 0)
+ goto exit;
+
+ return -1;
+
+exit:
+ /* 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 already open file descriptor */
+struct volume_id *volume_id_open_fd(int fd)
+{
+ struct volume_id *id;
+
+ id = malloc(sizeof(struct volume_id));
+ if (id == NULL)
+ return NULL;
+ memset(id, 0x00, sizeof(struct volume_id));
+
+ id->fd = fd;
+
+ return id;
+}
+
+/* open volume by device node */
+struct volume_id *volume_id_open_node(const char *path)
+{
+ struct volume_id *id;
+ int fd;
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0) {
+ dbg("unable to open '%s'", path);
+ return NULL;
+ }
+
+ id = volume_id_open_fd(fd);
+ if (id == NULL)
+ return NULL;
+
+ /* close fd on device close */
+ id->fd_close = 1;
+
+ return id;
+}
+
+/* open volume by major/minor */
+struct volume_id *volume_id_open_dev_t(dev_t devt)
+{
+ struct volume_id *id;
+ __u8 tmp_node[VOLUME_ID_PATH_MAX];
+
+ snprintf(tmp_node, VOLUME_ID_PATH_MAX,
+ "/dev/.volume_id-%u-%u-%u", getpid(), major(devt), minor(devt));
+ tmp_node[VOLUME_ID_PATH_MAX] = '\0';
+
+ /* create tempory node to open the block device */
+ unlink(tmp_node);
+ if (mknod(tmp_node, (S_IFBLK | 0600), devt) != 0)
+ return NULL;
+
+ id = volume_id_open_node(tmp_node);
+
+ unlink(tmp_node);
+
+ return id;
+}
+
+void volume_id_close(struct volume_id *id)
+{
+ if (id == NULL)
+ return;
+
+ if (id->fd_close != 0)
+ close(id->fd);
+
+ volume_id_free_buffer(id);
+
+ if (id->partitions != NULL)
+ free(id->partitions);
+
+ free(id);
+}
/*
* volume_id - reads partition label and uuid
*
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ * 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
#ifndef _VOLUME_ID_H_
#define _VOLUME_ID_H_
-#define VOLUME_ID_VERSION 28
+#define VOLUME_ID_VERSION 31
#define VOLUME_ID_LABEL_SIZE 64
#define VOLUME_ID_UUID_SIZE 16
VOLUME_ID_FILESYSTEM,
VOLUME_ID_PARTITIONTABLE,
VOLUME_ID_RAID,
-};
-
-enum volume_id_type {
- VOLUME_ID_ALL,
- VOLUME_ID_MSDOSPARTTABLE,
- VOLUME_ID_MSDOSEXTENDED,
- VOLUME_ID_SWAP,
- VOLUME_ID_EXT2,
- VOLUME_ID_EXT3,
- VOLUME_ID_REISERFS,
- VOLUME_ID_XFS,
- VOLUME_ID_JFS,
- VOLUME_ID_VFAT,
- VOLUME_ID_UDF,
- VOLUME_ID_ISO9660,
- VOLUME_ID_NTFS,
- VOLUME_ID_MACPARTMAP,
- VOLUME_ID_HFS,
- VOLUME_ID_HFSPLUS,
- VOLUME_ID_UFS,
- VOLUME_ID_LINUX_RAID,
- VOLUME_ID_LVM1,
- VOLUME_ID_LVM2,
- VOLUME_ID_HPTRAID,
+ VOLUME_ID_DISKLABEL,
};
struct volume_id_partition {
enum volume_id_usage usage_id;
- enum volume_id_type type_id;
+ char *usage;
char *type;
unsigned long long off;
unsigned long long len;
unsigned char uuid_raw[VOLUME_ID_UUID_SIZE];
char uuid[VOLUME_ID_UUID_STRING_SIZE];
enum volume_id_usage usage_id;
- enum volume_id_type type_id;
+ char *usage;
char *type;
char type_version[VOLUME_ID_FORMAT_SIZE];
+
struct volume_id_partition *partitions;
unsigned int partition_count;
+
int fd;
unsigned char *sbbuf;
unsigned int sbbuf_len;
int fd_close;
};
-/* open volume by already open file descriptor */
extern struct volume_id *volume_id_open_fd(int fd);
-
-/* open volume by device node */
extern struct volume_id *volume_id_open_node(const char *path);
-
-/* open volume by major/minor */
extern struct volume_id *volume_id_open_dev_t(dev_t devt);
-
-/* probe volume for filesystem type and try to read label/uuid */
-extern int volume_id_probe(struct volume_id *id, enum volume_id_type type,
- unsigned long long off, unsigned long long size);
-
-/* free allocated device info */
+extern int volume_id_probe_all(struct volume_id *id, unsigned long long off, unsigned long long size);
extern void volume_id_close(struct volume_id *id);
#endif
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <asm/types.h>
+
+#include "../volume_id.h"
+#include "../logging.h"
+#include "../util.h"
+#include "xfs.h"
+
+int volume_id_probe_xfs(struct volume_id *id, __u64 off)
+{
+ struct xfs_super_block {
+ __u8 magic[4];
+ __u32 blocksize;
+ __u64 dblocks;
+ __u64 rblocks;
+ __u32 dummy1[2];
+ __u8 uuid[16];
+ __u32 dummy2[15];
+ __u8 fname[12];
+ __u32 dummy3[2];
+ __u64 icount;
+ __u64 ifree;
+ __u64 fdblocks;
+ } __attribute__((__packed__)) *xs;
+
+ xs = (struct xfs_super_block *) volume_id_get_buffer(id, off, 0x200);
+ if (xs == NULL)
+ return -1;
+
+ if (strncmp(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;
+}
--- /dev/null
+/*
+ * 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
+ */
+
+#ifndef _VOLUME_ID__
+#define _VOLUME_ID__
+
+extern int volume_id_probe_xfs(struct volume_id *id, __u64 off);
+
+#endif
projects / systemd / commitdiff