Also adds findfs applet. Closes bug 1143.
shell/ \
sysklogd/ \
util-linux/ \
+ util-linux/volume_id/ \
endif # KBUILD_EXTMOD
device_name = x_blkid_get_devname(argv[optind]);
}
-#ifdef CONFIG_FINDFS
-static ATTRIBUTE_NORETURN void do_findfs(int argc, char **argv)
-{
- if ((argc != 2) ||
- (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5)))
- bb_show_usage();
- device_name = x_blkid_get_devname(argv[1]);
- puts(device_name);
- exit(0);
-}
-#else
-#define do_findfs(x, y)
-#endif
-
static void tune2fs_clean_up(void)
{
if (ENABLE_FEATURE_CLEAN_UP && device_name) free(device_name);
if (ENABLE_FEATURE_CLEAN_UP)
atexit(tune2fs_clean_up);
- if (ENABLE_FINDFS && (applet_name[0] == 'f')) /* findfs */
- do_findfs(argc, argv); /* no return */
- else if (ENABLE_E2LABEL && (applet_name[0] == 'e')) /* e2label */
+ if (ENABLE_E2LABEL && (applet_name[0] == 'e')) /* e2label */
parse_e2label_options(argc, argv);
else
parse_tune2fs_options(argc, argv); /* tune2fs */
" -t Get only headers\n" \
" -z Delete messages on server"
+#define findfs_trivial_usage \
+ "LABEL=label or UUID=uuid"
+#define findfs_full_usage \
+ "Finds a filesystem device based on a label or UUID."
+#define findfs_example_usage \
+ "$ findfs LABEL=MyDevice"
+
#define find_trivial_usage \
"[PATH...] [EXPRESSION]"
#define find_full_usage \
--- /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
+ */
+
+char *get_devname_from_label(const char *spec);
+char *get_devname_from_uuid(const char *spec);
partition, and similarly evil things. Unless you have a very good
reason you would be wise to leave this disabled.
+config FINDFS
+ bool "findfs"
+ default n
+ select VOLUMEID
+ help
+ This is similar to the findfs program that is part of the e2fsprogs
+ package. However, the e2fsprogs version only support ext2/3. This
+ version supports those in addition to FAT, swap, and ReiserFS.
+ WARNING:
+ With all submodules selected, it will add ~11k to busybox.
+
config FREERAMDISK
bool "freeramdisk"
default n
will be unable to determine the current screen size, and will be
unable to move the cursor.
+config VOLUMEID
+ bool "Routines for detecting label and uuid on common filesystems"
+ default n
+ help
+ TODO
+
+config FEATURE_VOLUMEID_EXT
+ bool "Ext filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_REISERFS
+ bool "Reiser filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_FAT
+ bool "fat filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_HFS
+ bool "hfs filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_JFS
+ bool "jfs filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_UFS
+ bool "ufs filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_XFS
+ bool "xfs filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_NTFS
+ bool "ntfs filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_ISO9660
+ bool "iso9660 filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_UDF
+ bool "udf filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_LUKS
+ bool "luks filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_LINUXSWAP
+ bool "linux swap filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_LVM
+ bool "lvm"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_CRAMFS
+ bool "cramfs filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_HPFS
+ bool "hpfs filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_ROMFS
+ bool "romfs filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_SYSV
+ bool "sysv filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_MINIX
+ bool "minix filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_MAC
+ bool "mac filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_MSDOS
+ bool "msdos filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_OCFS2
+ bool "ocfs2 filesystem"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_HIGHPOINTRAID
+ bool "highpoint raid"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_ISWRAID
+ bool "intel raid"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_LSIRAID
+ bool "lsi raid"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_VIARAID
+ bool "via raid"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_SILICONRAID
+ bool "silicon raid"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_NVIDIARAID
+ bool "nvidia raid"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_PROMISERAID
+ bool "promise raid"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
+config FEATURE_VOLUMEID_LINUXRAID
+ bool "linuxraid"
+ default n
+ depends on VOLUMEID
+ help
+ TODO
+
config MOUNT
bool "mount"
default n
"sometype [-o opts] fs /mnt" if simple mount syscall fails.
The idea is to use such virtual filesystems in /etc/fstab.
+config FEATURE_MOUNT_LABEL
+ bool " Support specifiying devices by label or UUID"
+ default n
+ depends on MOUNT
+ select FINDFS
+ help
+ This allows for specifying a device by label or uuid, rather than by
+ name. This feature utilizes the same functionality as findfs.
+
config FEATURE_MOUNT_NFS
bool "Support mounting NFS file systems"
default n
lib-$(CONFIG_FDFLUSH) +=freeramdisk.o
lib-$(CONFIG_FDFORMAT) +=fdformat.o
lib-$(CONFIG_FDISK) +=fdisk.o
+lib-$(CONFIG_FINDFS) +=findfs.o
lib-$(CONFIG_FREERAMDISK) +=freeramdisk.o
lib-$(CONFIG_FSCK_MINIX) +=fsck_minix.o
lib-$(CONFIG_GETOPT) +=getopt.o
printf(msg_building_new_label, "SGI disklabel");
- sgi_other_endian = (BYTE_ORDER == LITTLE_ENDIAN);
+ sgi_other_endian = BB_LITTLE_ENDIAN;
res = ioctl(fd, BLKGETSIZE, &longsectors);
if (!ioctl(fd, HDIO_GETGEO, &geometry)) {
g_heads = geometry.heads;
--- /dev/null
+/* vi: set sw=4 ts=4: */
+/*
+ * Support functions for mounting devices by label/uuid
+ *
+ * Copyright (C) 2006 by Jason Schoon <floydpink@gmail.com>
+ * Some portions cribbed from e2fsprogs, util-linux, dosfstools
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "libbb.h"
+#include "volume_id.h"
+
+int findfs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int findfs_main(int argc, char **argv)
+{
+ char *tmp = NULL;
+
+ if (argc != 2)
+ bb_show_usage();
+
+ if (!strncmp(argv[1], "LABEL=", 6))
+ tmp = get_devname_from_label(argv[1] + 6);
+ else if (!strncmp(argv[1], "UUID=", 5))
+ tmp = get_devname_from_uuid(argv[1] + 5);
+ else if (!strncmp(argv[1], "/dev/", 5)) {
+ /* Just pass a device name right through. This might aid in some scripts
+ being able to call this unconditionally */
+ tmp = argv[1];
+ } else
+ bb_show_usage();
+
+ if (tmp) {
+ puts(tmp);
+ return 0;
+ }
+ return 1;
+}
*/
#include <mntent.h>
-#include "libbb.h"
#include <syslog.h>
+#include "libbb.h"
-/* Needed for nfs support only... */
+/* For FEATURE_MOUNT_LABEL only */
+#include "volume_id.h"
+
+/* Needed for nfs support only */
#include <sys/utsname.h>
#undef TRUE
#undef FALSE
#define verbose_mount(...) mount(__VA_ARGS__)
#endif
+static int resolve_mount_spec(char **fsname)
+{
+ char *tmp = NULL;
+
+ if (!strncmp(*fsname, "UUID=", 5))
+ tmp = get_devname_from_uuid(*fsname + 5);
+ else if (!strncmp(*fsname, "LABEL=", 6))
+ tmp = get_devname_from_label(*fsname + 6);
+
+ if (tmp) {
+ *fsname = tmp;
+ return 1;
+ }
+ return 0;
+}
+
/* Append mount options to string */
static void append_mount_options(char **oldopts, const char *newopts)
{
mtpair->mnt_dir = argv[1];
mtpair->mnt_type = fstype;
mtpair->mnt_opts = cmdopts;
+ if (ENABLE_FEATURE_MOUNT_LABEL) {
+ resolve_mount_spec(&mtpair->mnt_fsname);
+ }
rc = singlemount(mtpair, 0);
goto clean_up;
}
mtcur->mnt_opts = xstrdup(mtcur->mnt_opts);
append_mount_options(&(mtcur->mnt_opts), cmdopts);
+ if (ENABLE_FEATURE_MOUNT_LABEL) {
+ resolve_mount_spec(&mtpair->mnt_fsname);
+ }
rc = singlemount(mtcur, 0);
free(mtcur->mnt_opts);
}
bb_error_msg_and_die(must_be_root);
// Mount this thing.
+ if (ENABLE_FEATURE_MOUNT_LABEL) {
+ resolve_mount_spec(&mtpair->mnt_fsname);
+ }
// NFS mounts want this to be xrealloc-able
mtcur->mnt_opts = xstrdup(mtcur->mnt_opts);
--- /dev/null
+# Makefile for busybox
+#
+# Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
+#
+# Licensed under the GPL v2, see the file LICENSE in this tarball.
+
+lib-y:=
+
+lib-$(CONFIG_FINDFS) += get_devname.o
+lib-$(CONFIG_FEATURE_MOUNT_LABEL) += get_devname.o
+
+lib-$(CONFIG_VOLUMEID) += volume_id.o util.o
+lib-$(CONFIG_FEATURE_VOLUMEID_EXT) += ext.o
+lib-$(CONFIG_FEATURE_VOLUMEID_FAT) += fat.o
+lib-$(CONFIG_FEATURE_VOLUMEID_HFS) += hfs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_HIGHPOINTRAID) += highpoint.o
+lib-$(CONFIG_FEATURE_VOLUMEID_ISWRAID) += isw_raid.o
+lib-$(CONFIG_FEATURE_VOLUMEID_LSIRAID) += lsi_raid.o
+lib-$(CONFIG_FEATURE_VOLUMEID_VIARAID) += via_raid.o
+lib-$(CONFIG_FEATURE_VOLUMEID_SILICONRAID) += silicon_raid.o
+lib-$(CONFIG_FEATURE_VOLUMEID_NVIDIARAID) += nvidia_raid.o
+lib-$(CONFIG_FEATURE_VOLUMEID_PROMISERAID) += promise_raid.o
+lib-$(CONFIG_FEATURE_VOLUMEID_ISO9660) += iso9660.o
+lib-$(CONFIG_FEATURE_VOLUMEID_JFS) += jfs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_LINUXRAID) += linux_raid.o
+lib-$(CONFIG_FEATURE_VOLUMEID_LINUXSWAP) += linux_swap.o
+lib-$(CONFIG_FEATURE_VOLUMEID_LVM) += lvm.o
+lib-$(CONFIG_FEATURE_VOLUMEID_MAC) += mac.o
+lib-$(CONFIG_FEATURE_VOLUMEID_MSDOS) += msdos.o
+lib-$(CONFIG_FEATURE_VOLUMEID_NTFS) += ntfs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_REISERFS) += reiserfs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_UDF) += udf.o
+lib-$(CONFIG_FEATURE_VOLUMEID_UFS) += ufs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_XFS) += xfs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_CRAMFS) += cramfs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_HPFS) += hpfs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_ROMFS) += romfs.o
+lib-$(CONFIG_FEATURE_VOLUMEID_SYSV) += sysv.o
+lib-$(CONFIG_FEATURE_VOLUMEID_MINIX) += minix.o
+lib-$(CONFIG_FEATURE_VOLUMEID_LUKS) += luks.o
+lib-$(CONFIG_FEATURE_VOLUMEID_OCFS2) += ocfs2.o
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct cramfs_super {
+ uint8_t magic[4];
+ uint32_t size;
+ uint32_t flags;
+ uint32_t future;
+ uint8_t signature[16];
+ struct cramfs_info {
+ uint32_t crc;
+ uint32_t edition;
+ uint32_t blocks;
+ uint32_t files;
+ } __attribute__((__packed__)) info;
+ uint8_t name[16];
+} __attribute__((__packed__));
+
+int volume_id_probe_cramfs(struct volume_id *id, uint64_t off)
+{
+ struct cramfs_super *cs;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ cs = volume_id_get_buffer(id, off, 0x200);
+ if (cs == NULL)
+ return -1;
+
+ if (memcmp(cs->magic, "\x45\x3d\xcd\x28", 4) == 0) {
+ volume_id_set_label_raw(id, cs->name, 16);
+ volume_id_set_label_string(id, cs->name, 16);
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "cramfs";
+ return 0;
+ }
+
+ return -1;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct ext2_super_block {
+ uint32_t inodes_count;
+ uint32_t blocks_count;
+ uint32_t r_blocks_count;
+ uint32_t free_blocks_count;
+ uint32_t free_inodes_count;
+ uint32_t first_data_block;
+ uint32_t log_block_size;
+ uint32_t dummy3[7];
+ uint8_t magic[2];
+ uint16_t state;
+ uint32_t dummy5[8];
+ uint32_t feature_compat;
+ uint32_t feature_incompat;
+ uint32_t feature_ro_compat;
+ uint8_t uuid[16];
+ uint8_t volume_name[16];
+} __attribute__((__packed__));
+
+#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x00000004
+#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x00000008
+#define EXT_SUPERBLOCK_OFFSET 0x400
+
+int volume_id_probe_ext(struct volume_id *id, uint64_t off)
+{
+ struct ext2_super_block *es;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ es = volume_id_get_buffer(id, off + EXT_SUPERBLOCK_OFFSET, 0x200);
+ if (es == NULL)
+ return -1;
+
+ if (es->magic[0] != 0123 ||
+ es->magic[1] != 0357)
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ volume_id_set_label_raw(id, es->volume_name, 16);
+ volume_id_set_label_string(id, es->volume_name, 16);
+ volume_id_set_uuid(id, es->uuid, UUID_DCE);
+
+ if ((le32_to_cpu(es->feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL) != 0)
+ id->type = "ext3";
+ else
+ id->type = "ext2";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+#define FAT12_MAX 0xff5
+#define FAT16_MAX 0xfff5
+#define FAT_ATTR_VOLUME_ID 0x08
+#define FAT_ATTR_DIR 0x10
+#define FAT_ATTR_LONG_NAME 0x0f
+#define FAT_ATTR_MASK 0x3f
+#define FAT_ENTRY_FREE 0xe5
+
+struct vfat_super_block {
+ uint8_t boot_jump[3];
+ uint8_t sysid[8];
+ uint16_t sector_size;
+ uint8_t sectors_per_cluster;
+ uint16_t reserved;
+ uint8_t fats;
+ uint16_t dir_entries;
+ uint16_t sectors;
+ uint8_t media;
+ uint16_t fat_length;
+ uint16_t secs_track;
+ uint16_t heads;
+ uint32_t hidden;
+ uint32_t total_sect;
+ union {
+ struct fat_super_block {
+ uint8_t unknown[3];
+ uint8_t serno[4];
+ uint8_t label[11];
+ uint8_t magic[8];
+ uint8_t dummy2[192];
+ uint8_t pmagic[2];
+ } __attribute__((__packed__)) fat;
+ struct fat32_super_block {
+ uint32_t fat32_length;
+ uint16_t flags;
+ uint8_t version[2];
+ uint32_t root_cluster;
+ uint16_t insfo_sector;
+ uint16_t backup_boot;
+ uint16_t reserved2[6];
+ uint8_t unknown[3];
+ uint8_t serno[4];
+ uint8_t label[11];
+ uint8_t magic[8];
+ uint8_t dummy2[164];
+ uint8_t pmagic[2];
+ } __attribute__((__packed__)) fat32;
+ } __attribute__((__packed__)) type;
+} __attribute__((__packed__));
+
+struct vfat_dir_entry {
+ uint8_t name[11];
+ uint8_t attr;
+ uint16_t time_creat;
+ uint16_t date_creat;
+ uint16_t time_acc;
+ uint16_t date_acc;
+ uint16_t cluster_high;
+ uint16_t time_write;
+ uint16_t date_write;
+ uint16_t cluster_low;
+ uint32_t size;
+} __attribute__((__packed__));
+
+static uint8_t *get_attr_volume_id(struct vfat_dir_entry *dir, unsigned count)
+{
+ unsigned i;
+
+ for (i = 0; i < count; i++) {
+ /* end marker */
+ if (dir[i].name[0] == 0x00) {
+ dbg("end of dir");
+ break;
+ }
+
+ /* empty entry */
+ if (dir[i].name[0] == FAT_ENTRY_FREE)
+ continue;
+
+ /* long name */
+ if ((dir[i].attr & FAT_ATTR_MASK) == FAT_ATTR_LONG_NAME)
+ continue;
+
+ if ((dir[i].attr & (FAT_ATTR_VOLUME_ID | FAT_ATTR_DIR)) == FAT_ATTR_VOLUME_ID) {
+ /* labels do not have file data */
+ if (dir[i].cluster_high != 0 || dir[i].cluster_low != 0)
+ continue;
+
+ dbg("found ATTR_VOLUME_ID id in root dir");
+ return dir[i].name;
+ }
+
+ dbg("skip dir entry");
+ }
+
+ return NULL;
+}
+
+int volume_id_probe_vfat(struct volume_id *id, uint64_t off)
+{
+ struct vfat_super_block *vs;
+ struct vfat_dir_entry *dir;
+ uint16_t sector_size;
+ uint16_t dir_entries;
+ uint32_t sect_count;
+ uint16_t reserved;
+ uint32_t fat_size;
+ uint32_t root_cluster;
+ uint32_t dir_size;
+ uint32_t cluster_count;
+ uint32_t fat_length;
+ uint64_t root_start;
+ uint32_t start_data_sect;
+ uint16_t root_dir_entries;
+ uint8_t *buf;
+ uint32_t buf_size;
+ uint8_t *label = NULL;
+ uint32_t next;
+ int maxloop;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ vs = volume_id_get_buffer(id, off, 0x200);
+ if (vs == NULL)
+ return -1;
+
+ /* believe only that's fat, don't trust the version
+ * the cluster_count will tell us
+ */
+ if (memcmp(vs->sysid, "NTFS", 4) == 0)
+ return -1;
+
+ if (memcmp(vs->type.fat32.magic, "MSWIN", 5) == 0)
+ goto valid;
+
+ if (memcmp(vs->type.fat32.magic, "FAT32 ", 8) == 0)
+ goto valid;
+
+ if (memcmp(vs->type.fat.magic, "FAT16 ", 8) == 0)
+ goto valid;
+
+ if (memcmp(vs->type.fat.magic, "MSDOS", 5) == 0)
+ goto valid;
+
+ if (memcmp(vs->type.fat.magic, "FAT12 ", 8) == 0)
+ goto valid;
+
+ /*
+ * There are old floppies out there without a magic, so we check
+ * for well known values and guess if it's a fat volume
+ */
+
+ /* boot jump address check */
+ if ((vs->boot_jump[0] != 0xeb || vs->boot_jump[2] != 0x90) &&
+ vs->boot_jump[0] != 0xe9)
+ return -1;
+
+ /* heads check */
+ if (vs->heads == 0)
+ return -1;
+
+ /* cluster size check*/
+ if (vs->sectors_per_cluster == 0 ||
+ (vs->sectors_per_cluster & (vs->sectors_per_cluster-1)))
+ return -1;
+
+ /* media check */
+ if (vs->media < 0xf8 && vs->media != 0xf0)
+ return -1;
+
+ /* fat count*/
+ if (vs->fats != 2)
+ return -1;
+
+ valid:
+ /* sector size check */
+ sector_size = le16_to_cpu(vs->sector_size);
+ if (sector_size != 0x200 && sector_size != 0x400 &&
+ sector_size != 0x800 && sector_size != 0x1000)
+ return -1;
+
+ dbg("sector_size 0x%x", sector_size);
+ dbg("sectors_per_cluster 0x%x", vs->sectors_per_cluster);
+
+ dir_entries = le16_to_cpu(vs->dir_entries);
+ reserved = le16_to_cpu(vs->reserved);
+ dbg("reserved 0x%x", reserved);
+
+ sect_count = le16_to_cpu(vs->sectors);
+ if (sect_count == 0)
+ sect_count = le32_to_cpu(vs->total_sect);
+ dbg("sect_count 0x%x", sect_count);
+
+ fat_length = le16_to_cpu(vs->fat_length);
+ if (fat_length == 0)
+ fat_length = le32_to_cpu(vs->type.fat32.fat32_length);
+ dbg("fat_length 0x%x", fat_length);
+
+ fat_size = fat_length * vs->fats;
+ dir_size = ((dir_entries * sizeof(struct vfat_dir_entry)) +
+ (sector_size-1)) / sector_size;
+ dbg("dir_size 0x%x", dir_size);
+
+ cluster_count = sect_count - (reserved + fat_size + dir_size);
+ cluster_count /= vs->sectors_per_cluster;
+ dbg("cluster_count 0x%x", cluster_count);
+
+ if (cluster_count < FAT12_MAX) {
+ strcpy(id->type_version, "FAT12");
+ } else if (cluster_count < FAT16_MAX) {
+ strcpy(id->type_version, "FAT16");
+ } else {
+ strcpy(id->type_version, "FAT32");
+ goto fat32;
+ }
+
+ /* the label may be an attribute in the root directory */
+ root_start = (reserved + fat_size) * sector_size;
+ dbg("root dir start 0x%llx", (unsigned long long) root_start);
+ root_dir_entries = le16_to_cpu(vs->dir_entries);
+ dbg("expected entries 0x%x", root_dir_entries);
+
+ buf_size = root_dir_entries * sizeof(struct vfat_dir_entry);
+ buf = volume_id_get_buffer(id, off + root_start, buf_size);
+ if (buf == NULL)
+ goto found;
+
+ dir = (struct vfat_dir_entry*) buf;
+
+ label = get_attr_volume_id(dir, root_dir_entries);
+
+ vs = volume_id_get_buffer(id, off, 0x200);
+ if (vs == NULL)
+ return -1;
+
+ if (label != NULL && memcmp(label, "NO NAME ", 11) != 0) {
+ volume_id_set_label_raw(id, label, 11);
+ volume_id_set_label_string(id, label, 11);
+ } else if (memcmp(vs->type.fat.label, "NO NAME ", 11) != 0) {
+ volume_id_set_label_raw(id, vs->type.fat.label, 11);
+ volume_id_set_label_string(id, vs->type.fat.label, 11);
+ }
+ volume_id_set_uuid(id, vs->type.fat.serno, UUID_DOS);
+ goto found;
+
+ fat32:
+ /* FAT32 root dir is a cluster chain like any other directory */
+ buf_size = vs->sectors_per_cluster * sector_size;
+ root_cluster = le32_to_cpu(vs->type.fat32.root_cluster);
+ dbg("root dir cluster %u", root_cluster);
+ start_data_sect = reserved + fat_size;
+
+ next = root_cluster;
+ maxloop = 100;
+ while (--maxloop) {
+ uint32_t next_sect_off;
+ uint64_t next_off;
+ uint64_t fat_entry_off;
+ int count;
+
+ dbg("next cluster %u", next);
+ next_sect_off = (next - 2) * vs->sectors_per_cluster;
+ next_off = (start_data_sect + next_sect_off) * sector_size;
+ dbg("cluster offset 0x%llx", (unsigned long long) next_off);
+
+ /* get cluster */
+ buf = volume_id_get_buffer(id, off + next_off, buf_size);
+ if (buf == NULL)
+ goto found;
+
+ dir = (struct vfat_dir_entry*) buf;
+ count = buf_size / sizeof(struct vfat_dir_entry);
+ dbg("expected entries 0x%x", count);
+
+ label = get_attr_volume_id(dir, count);
+ if (label)
+ break;
+
+ /* get FAT entry */
+ fat_entry_off = (reserved * sector_size) + (next * sizeof(uint32_t));
+ buf = volume_id_get_buffer(id, off + fat_entry_off, buf_size);
+ if (buf == NULL)
+ goto found;
+
+ /* set next cluster */
+ next = le32_to_cpu(*((uint32_t *) buf) & 0x0fffffff);
+ if (next == 0)
+ break;
+ }
+ if (maxloop == 0)
+ dbg("reached maximum follow count of root cluster chain, give up");
+
+ vs = volume_id_get_buffer(id, off, 0x200);
+ if (vs == NULL)
+ return -1;
+
+ if (label != NULL && memcmp(label, "NO NAME ", 11) != 0) {
+ volume_id_set_label_raw(id, label, 11);
+ volume_id_set_label_string(id, label, 11);
+ } else if (memcmp(vs->type.fat32.label, "NO NAME ", 11) != 0) {
+ volume_id_set_label_raw(id, vs->type.fat32.label, 11);
+ volume_id_set_label_string(id, vs->type.fat32.label, 11);
+ }
+ volume_id_set_uuid(id, vs->type.fat32.serno, UUID_DOS);
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "vfat";
+
+ return 0;
+}
--- /dev/null
+/* vi: set sw=4 ts=4: */
+/*
+ * Support functions for mounting devices by label/uuid
+ *
+ * Copyright (C) 2006 by Jason Schoon <floydpink@gmail.com>
+ * Some portions cribbed from e2fsprogs, util-linux, dosfstools
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "volume_id_internal.h"
+
+#define BLKGETSIZE64 _IOR(0x12,114,size_t)
+
+#define PROC_PARTITIONS "/proc/partitions"
+#define PROC_CDROMS "/proc/sys/dev/cdrom/info"
+#define DEVLABELDIR "/dev"
+#define SYS_BLOCK "/sys/block"
+
+static struct uuidCache_s {
+ struct uuidCache_s *next;
+ char uuid[16];
+ char *device;
+ char *label;
+ int major, minor;
+} *uuidCache;
+
+/* for now, only ext2, ext3 and xfs are supported */
+static int
+get_label_uuid(const char *device, char **label, char **uuid, int iso_only)
+{
+ int rv = 1;
+ uint64_t size;
+ struct volume_id *vid;
+
+ vid = volume_id_open_node(device);
+
+ if (ioctl(vid->fd, BLKGETSIZE64, &size) != 0) {
+ size = 0;
+ }
+
+#if ENABLE_FEATURE_VOLUMEID_ISO9660
+ if (iso_only ?
+ volume_id_probe_iso9660(vid, 0) != 0 :
+ volume_id_probe_all(vid, 0, size) != 0) {
+ goto ret;
+ }
+#else
+ if (volume_id_probe_all(vid, 0, size) != 0) {
+ goto ret;
+ }
+#endif
+
+ if (vid->label[0] != '\0') {
+ *label = xstrndup(vid->label, sizeof(vid->label));
+ *uuid = xstrndup(vid->uuid, sizeof(vid->uuid));
+ printf("Found label %s on %s (uuid:%s)\n", *label, device, *uuid);
+ rv = 0;
+ }
+ ret:
+ free_volume_id(vid);
+ return rv;
+}
+
+static void
+uuidcache_addentry(char * device, int major, int minor, char *label, char *uuid)
+{
+ struct uuidCache_s *last;
+
+ if (!uuidCache) {
+ last = uuidCache = xzalloc(sizeof(*uuidCache));
+ } else {
+ for (last = uuidCache; last->next; last = last->next)
+ continue;
+ last->next = xzalloc(sizeof(*uuidCache));
+ last = last->next;
+ }
+ /*last->next = NULL; - xzalloc did it*/
+ last->label = label;
+ last->device = device;
+ last->major = major;
+ last->minor = minor;
+ memcpy(last->uuid, uuid, sizeof(last->uuid));
+}
+
+static void
+uuidcache_check_device(const char *device_name, int ma, int mi, int iso_only)
+{
+ char device[110];
+ char *uuid = NULL, *label = NULL;
+ char *ptr;
+ char *deviceDir = NULL;
+ int mustRemove = 0;
+ int mustRemoveDir = 0;
+ int i;
+
+ sprintf(device, "%s/%s", DEVLABELDIR, device_name);
+ if (access(device, F_OK)) {
+ ptr = device;
+ i = 0;
+ while (*ptr)
+ if (*ptr++ == '/')
+ i++;
+ if (i > 2) {
+ deviceDir = alloca(strlen(device) + 1);
+ strcpy(deviceDir, device);
+ ptr = deviceDir + (strlen(device) - 1);
+ while (*ptr != '/')
+ *ptr-- = '\0';
+ if (mkdir(deviceDir, 0644)) {
+ printf("mkdir: cannot create directory %s: %d\n", deviceDir, errno);
+ } else {
+ mustRemoveDir = 1;
+ }
+ }
+
+ mknod(device, S_IFBLK | 0600, makedev(ma, mi));
+ mustRemove = 1;
+ }
+ if (!get_label_uuid(device, &label, &uuid, iso_only))
+ uuidcache_addentry(strdup(device), ma, mi,
+ label, uuid);
+
+ if (mustRemove) unlink(device);
+ if (mustRemoveDir) rmdir(deviceDir);
+}
+
+static void
+uuidcache_init_partitions(void)
+{
+ char line[100];
+ int ma, mi;
+ unsigned long long sz;
+ FILE *procpt;
+ int firstPass;
+ int handleOnFirst;
+ char *chptr;
+
+ procpt = xfopen(PROC_PARTITIONS, "r");
+/*
+# cat /proc/partitions
+major minor #blocks name
+
+ 8 0 293036184 sda
+ 8 1 6835626 sda1
+ 8 2 1 sda2
+ 8 5 979933 sda5
+ 8 6 15623181 sda6
+ 8 7 97659103 sda7
+ 8 8 171935631 sda8
+*/
+ for (firstPass = 1; firstPass >= 0; firstPass--) {
+ fseek(procpt, 0, SEEK_SET);
+
+ while (fgets(line, sizeof(line), procpt)) {
+ /* The original version of this code used sscanf, but
+ diet's sscanf is quite limited */
+ chptr = line;
+ if (*chptr != ' ') continue;
+ chptr++;
+
+ ma = bb_strtou(chptr, &chptr, 0);
+ if (ma < 0) continue;
+ chptr = skip_whitespace(chptr);
+
+ mi = bb_strtou(chptr, &chptr, 0);
+ if (mi < 0) continue;
+ chptr = skip_whitespace(chptr);
+
+ sz = bb_strtoull(chptr, &chptr, 0);
+ if ((long long)sz == -1LL) continue;
+ chptr = skip_whitespace(chptr);
+
+ /* skip extended partitions (heuristic: size 1) */
+ if (sz == 1)
+ continue;
+
+ *strchrnul(chptr, '\n') = '\0';
+ /* now chptr => device name */
+ if (!chptr[0])
+ continue;
+
+ /* look only at md devices on first pass */
+ handleOnFirst = (chptr[0] == 'm' && chptr[1] == 'd');
+ if (firstPass != handleOnFirst)
+ continue;
+
+ /* heuristic: partition name ends in a digit */
+ if (isdigit(chptr[strlen(chptr) - 1])) {
+ uuidcache_check_device(chptr, ma, mi, 0);
+ }
+ }
+ }
+
+ fclose(procpt);
+}
+
+static int
+dev_get_major_minor(char *device_name, int *major, int *minor)
+{
+ char * dev_path;
+ int fd;
+ char dev[7];
+ char *major_ptr, *minor_ptr;
+
+ dev_path = alloca(strlen(SYS_BLOCK) + strlen(device_name) + 6);
+ sprintf(dev_path, "%s/%s/dev", SYS_BLOCK, device_name);
+
+ fd = open(dev_path, O_RDONLY);
+ if (fd < 0) return 1;
+ full_read(fd, dev, sizeof(dev));
+ close(fd);
+
+ major_ptr = dev;
+ minor_ptr = strchr(dev, ':');
+ if (!minor_ptr) return 1;
+ *minor_ptr++ = '\0';
+
+ *major = strtol(major_ptr, NULL, 10);
+ *minor = strtol(minor_ptr, NULL, 10);
+
+ return 0;
+}
+
+static void
+uuidcache_init_cdroms(void)
+{
+ char line[100];
+ int ma, mi;
+ FILE *proccd;
+
+ proccd = fopen(PROC_CDROMS, "r");
+ if (!proccd) {
+ static smallint warn = 0;
+ if (!warn) {
+ warn = 1;
+ bb_error_msg("mount: could not open %s, so UUID and LABEL "
+ "conversion cannot be done for CD-Roms.",
+ PROC_CDROMS);
+ }
+ return;
+ }
+
+ while (fgets(line, sizeof(line), proccd)) {
+ const char *drive_name_string = "drive name:\t\t";
+ if (!strncmp(line, drive_name_string, strlen(drive_name_string))) {
+ char *device_name;
+ device_name = strtok(line + strlen(drive_name_string), "\t\n");
+ while (device_name) {
+ dev_get_major_minor(device_name, &ma, &mi);
+ uuidcache_check_device(device_name, ma, mi, 1);
+ device_name = strtok(NULL, "\t\n");
+ }
+ break;
+ }
+ }
+
+ fclose(proccd);
+}
+
+static void
+uuidcache_init(void)
+{
+ if (uuidCache)
+ return;
+
+ uuidcache_init_partitions();
+ uuidcache_init_cdroms();
+}
+
+#define UUID 1
+#define VOL 2
+
+#ifdef UNUSED
+static char *
+get_spec_by_x(int n, const char *t, int * majorPtr, int * minorPtr)
+{
+ struct uuidCache_s *uc;
+
+ uuidcache_init();
+ uc = uuidCache;
+
+ while(uc) {
+ switch (n) {
+ case UUID:
+ if (!memcmp(t, uc->uuid, sizeof(uc->uuid))) {
+ *majorPtr = uc->major;
+ *minorPtr = uc->minor;
+ return uc->device;
+ }
+ break;
+ case VOL:
+ if (!strcmp(t, uc->label)) {
+ *majorPtr = uc->major;
+ *minorPtr = uc->minor;
+ return uc->device;
+ }
+ break;
+ }
+ uc = uc->next;
+ }
+ return NULL;
+}
+
+static unsigned char
+fromhex(char c)
+{
+ if (isdigit(c))
+ return (c - '0');
+ if (islower(c))
+ return (c - 'a' + 10);
+ return (c - 'A' + 10);
+}
+
+static char *
+get_spec_by_uuid(const char *s, int * major, int * minor)
+{
+ unsigned char uuid[16];
+ int i;
+
+ if (strlen(s) != 36 ||
+ s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-')
+ goto bad_uuid;
+ for (i=0; i<16; i++) {
+ if (*s == '-') s++;
+ if (!isxdigit(s[0]) || !isxdigit(s[1]))
+ goto bad_uuid;
+ uuid[i] = ((fromhex(s[0])<<4) | fromhex(s[1]));
+ s += 2;
+ }
+ return get_spec_by_x(UUID, (char *)uuid, major, minor);
+
+ bad_uuid:
+ fprintf(stderr, _("mount: bad UUID"));
+ return 0;
+}
+
+static char *
+get_spec_by_volume_label(const char *s, int *major, int *minor)
+{
+ return get_spec_by_x(VOL, s, major, minor);
+}
+
+static int display_uuid_cache(void)
+{
+ struct uuidCache_s *u;
+ size_t i;
+
+ uuidcache_init();
+
+ u = uuidCache;
+ while (u) {
+ printf("%s %s ", u->device, u->label);
+ for (i = 0; i < sizeof(u->uuid); i++) {
+ if (i == 4 || i == 6 || i == 8 || i == 10)
+ printf("-");
+ printf("%x", u->uuid[i] & 0xff);
+ }
+ printf("\n");
+ u = u->next;
+ }
+
+ return 0;
+}
+#endif // UNUSED
+
+
+/* Used by mount and findfs */
+
+char *get_devname_from_label(const char *spec)
+{
+ struct uuidCache_s *uc;
+ int spec_len = strlen(spec);
+
+ uuidcache_init();
+ uc = uuidCache;
+ while (uc) {
+ if (uc->label && !strncmp(spec, uc->label, spec_len)) {
+ return xstrdup(uc->device);
+ }
+ uc = uc->next;
+ }
+ return NULL;
+}
+
+char *get_devname_from_uuid(const char *spec)
+{
+ struct uuidCache_s *uc;
+
+ uuidcache_init();
+ uc = uuidCache;
+ while (uc) {
+ if (!memcmp(spec, uc->uuid, sizeof(uc->uuid))) {
+ return xstrdup(uc->device);
+ }
+ uc = uc->next;
+ }
+ return NULL;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct hfs_finder_info{
+ uint32_t boot_folder;
+ uint32_t start_app;
+ uint32_t open_folder;
+ uint32_t os9_folder;
+ uint32_t reserved;
+ uint32_t osx_folder;
+ uint8_t id[8];
+} __attribute__((__packed__));
+
+struct hfs_mdb {
+ uint8_t signature[2];
+ uint32_t cr_date;
+ uint32_t ls_Mod;
+ uint16_t atrb;
+ uint16_t nm_fls;
+ uint16_t vbm_st;
+ uint16_t alloc_ptr;
+ uint16_t nm_al_blks;
+ uint32_t al_blk_size;
+ uint32_t clp_size;
+ uint16_t al_bl_st;
+ uint32_t nxt_cnid;
+ uint16_t free_bks;
+ uint8_t label_len;
+ uint8_t label[27];
+ uint32_t vol_bkup;
+ uint16_t vol_seq_num;
+ uint32_t wr_cnt;
+ uint32_t xt_clump_size;
+ uint32_t ct_clump_size;
+ uint16_t num_root_dirs;
+ uint32_t file_count;
+ uint32_t dir_count;
+ struct hfs_finder_info finder_info;
+ uint8_t embed_sig[2];
+ uint16_t embed_startblock;
+ uint16_t embed_blockcount;
+} __attribute__((__packed__));
+
+struct hfsplus_bnode_descriptor {
+ uint32_t next;
+ uint32_t prev;
+ uint8_t type;
+ uint8_t height;
+ uint16_t num_recs;
+ uint16_t reserved;
+} __attribute__((__packed__));
+
+struct hfsplus_bheader_record {
+ uint16_t depth;
+ uint32_t root;
+ uint32_t leaf_count;
+ uint32_t leaf_head;
+ uint32_t leaf_tail;
+ uint16_t node_size;
+} __attribute__((__packed__));
+
+struct hfsplus_catalog_key {
+ uint16_t key_len;
+ uint32_t parent_id;
+ uint16_t unicode_len;
+ uint8_t unicode[255 * 2];
+} __attribute__((__packed__));
+
+struct hfsplus_extent {
+ uint32_t start_block;
+ uint32_t block_count;
+} __attribute__((__packed__));
+
+#define HFSPLUS_EXTENT_COUNT 8
+struct hfsplus_fork {
+ uint64_t total_size;
+ uint32_t clump_size;
+ uint32_t total_blocks;
+ struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
+} __attribute__((__packed__));
+
+struct hfsplus_vol_header {
+ uint8_t signature[2];
+ uint16_t version;
+ uint32_t attributes;
+ uint32_t last_mount_vers;
+ uint32_t reserved;
+ uint32_t create_date;
+ uint32_t modify_date;
+ uint32_t backup_date;
+ uint32_t checked_date;
+ uint32_t file_count;
+ uint32_t folder_count;
+ uint32_t blocksize;
+ uint32_t total_blocks;
+ uint32_t free_blocks;
+ uint32_t next_alloc;
+ uint32_t rsrc_clump_sz;
+ uint32_t data_clump_sz;
+ uint32_t next_cnid;
+ uint32_t write_count;
+ uint64_t encodings_bmp;
+ struct hfs_finder_info finder_info;
+ struct hfsplus_fork alloc_file;
+ struct hfsplus_fork ext_file;
+ struct hfsplus_fork cat_file;
+ struct hfsplus_fork attr_file;
+ struct hfsplus_fork start_file;
+} __attribute__((__packed__));
+
+#define HFS_SUPERBLOCK_OFFSET 0x400
+#define HFS_NODE_LEAF 0xff
+#define HFSPLUS_POR_CNID 1
+
+int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off)
+{
+ unsigned blocksize;
+ unsigned cat_block;
+ unsigned ext_block_start;
+ unsigned ext_block_count;
+ int ext;
+ unsigned leaf_node_head;
+ unsigned leaf_node_count;
+ unsigned leaf_node_size;
+ unsigned leaf_block;
+ uint64_t leaf_off;
+ unsigned alloc_block_size;
+ unsigned alloc_first_block;
+ unsigned embed_first_block;
+ unsigned record_count;
+ struct hfsplus_vol_header *hfsplus;
+ struct hfsplus_bnode_descriptor *descr;
+ struct hfsplus_bheader_record *bnode;
+ struct hfsplus_catalog_key *key;
+ unsigned label_len;
+ struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
+ struct hfs_mdb *hfs;
+ const uint8_t *buf;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ buf = volume_id_get_buffer(id, off + HFS_SUPERBLOCK_OFFSET, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ hfs = (struct hfs_mdb *) buf;
+ if (hfs->signature[0] != 'B' || hfs->signature[1] != 'D')
+ goto checkplus;
+
+ /* it may be just a hfs wrapper for hfs+ */
+ if (memcmp(hfs->embed_sig, "H+", 2) == 0) {
+ alloc_block_size = be32_to_cpu(hfs->al_blk_size);
+ dbg("alloc_block_size 0x%x", alloc_block_size);
+
+ alloc_first_block = be16_to_cpu(hfs->al_bl_st);
+ dbg("alloc_first_block 0x%x", alloc_first_block);
+
+ embed_first_block = be16_to_cpu(hfs->embed_startblock);
+ dbg("embed_first_block 0x%x", embed_first_block);
+
+ off += (alloc_first_block * 512) +
+ (embed_first_block * alloc_block_size);
+ dbg("hfs wrapped hfs+ found at offset 0x%llx", (unsigned long long) off);
+
+ buf = volume_id_get_buffer(id, off + HFS_SUPERBLOCK_OFFSET, 0x200);
+ if (buf == NULL)
+ return -1;
+ goto checkplus;
+ }
+
+ if (hfs->label_len > 0 && hfs->label_len < 28) {
+ volume_id_set_label_raw(id, hfs->label, hfs->label_len);
+ volume_id_set_label_string(id, hfs->label, hfs->label_len) ;
+ }
+
+ volume_id_set_uuid(id, hfs->finder_info.id, UUID_HFS);
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "hfs";
+
+ return 0;
+
+ checkplus:
+ hfsplus = (struct hfsplus_vol_header *) buf;
+ if (hfs->signature[0] == 'H')
+ if (hfs->signature[1] == '+' || hfs->signature[1] == 'X')
+ goto hfsplus;
+ return -1;
+
+ hfsplus:
+ volume_id_set_uuid(id, hfsplus->finder_info.id, UUID_HFS);
+
+ blocksize = be32_to_cpu(hfsplus->blocksize);
+ dbg("blocksize %u", blocksize);
+
+ memcpy(extents, hfsplus->cat_file.extents, sizeof(extents));
+ cat_block = be32_to_cpu(extents[0].start_block);
+ dbg("catalog start block 0x%x", cat_block);
+
+ buf = volume_id_get_buffer(id, off + (cat_block * blocksize), 0x2000);
+ if (buf == NULL)
+ goto found;
+
+ bnode = (struct hfsplus_bheader_record *)
+ &buf[sizeof(struct hfsplus_bnode_descriptor)];
+
+ leaf_node_head = be32_to_cpu(bnode->leaf_head);
+ dbg("catalog leaf node 0x%x", leaf_node_head);
+
+ leaf_node_size = be16_to_cpu(bnode->node_size);
+ dbg("leaf node size 0x%x", leaf_node_size);
+
+ leaf_node_count = be32_to_cpu(bnode->leaf_count);
+ dbg("leaf node count 0x%x", leaf_node_count);
+ if (leaf_node_count == 0)
+ goto found;
+
+ leaf_block = (leaf_node_head * leaf_node_size) / blocksize;
+
+ /* get physical location */
+ for (ext = 0; ext < HFSPLUS_EXTENT_COUNT; ext++) {
+ ext_block_start = be32_to_cpu(extents[ext].start_block);
+ ext_block_count = be32_to_cpu(extents[ext].block_count);
+ dbg("extent start block 0x%x, count 0x%x", ext_block_start, ext_block_count);
+
+ if (ext_block_count == 0)
+ goto found;
+
+ /* this is our extent */
+ if (leaf_block < ext_block_count)
+ break;
+
+ leaf_block -= ext_block_count;
+ }
+ if (ext == HFSPLUS_EXTENT_COUNT)
+ goto found;
+ dbg("found block in extent %i", ext);
+
+ leaf_off = (ext_block_start + leaf_block) * blocksize;
+
+ buf = volume_id_get_buffer(id, off + leaf_off, leaf_node_size);
+ if (buf == NULL)
+ goto found;
+
+ descr = (struct hfsplus_bnode_descriptor *) buf;
+ dbg("descriptor type 0x%x", descr->type);
+
+ record_count = be16_to_cpu(descr->num_recs);
+ dbg("number of records %u", record_count);
+ if (record_count == 0)
+ goto found;
+
+ if (descr->type != HFS_NODE_LEAF)
+ goto found;
+
+ key = (struct hfsplus_catalog_key *)
+ &buf[sizeof(struct hfsplus_bnode_descriptor)];
+
+ dbg("parent id 0x%x", be32_to_cpu(key->parent_id));
+ if (key->parent_id != cpu_to_be32(HFSPLUS_POR_CNID))
+ goto found;
+
+ label_len = be16_to_cpu(key->unicode_len) * 2;
+ dbg("label unicode16 len %i", label_len);
+ volume_id_set_label_raw(id, key->unicode, label_len);
+ volume_id_set_label_unicode16(id, key->unicode, BE, label_len);
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "hfsplus";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct hpt37x_meta {
+ uint8_t filler1[32];
+ uint32_t magic;
+} __attribute__((packed));
+
+struct hpt45x_meta {
+ uint32_t magic;
+} __attribute__((packed));
+
+#define HPT37X_CONFIG_OFF 0x1200
+#define HPT37X_MAGIC_OK 0x5a7816f0
+#define HPT37X_MAGIC_BAD 0x5a7816fd
+
+#define HPT45X_MAGIC_OK 0x5a7816f3
+#define HPT45X_MAGIC_BAD 0x5a7816fd
+
+
+int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off)
+{
+ struct hpt37x_meta *hpt;
+ uint32_t magic;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ hpt = volume_id_get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
+ if (hpt == NULL)
+ return -1;
+
+ magic = hpt->magic;
+ if (magic != cpu_to_le32(HPT37X_MAGIC_OK) && magic != cpu_to_le32(HPT37X_MAGIC_BAD))
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "highpoint_raid_member";
+
+ return 0;
+}
+
+int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ struct hpt45x_meta *hpt;
+ uint64_t meta_off;
+ uint32_t magic;
+
+ dbg("probing at offset 0x%llx, size 0x%llx",
+ (unsigned long long) off, (unsigned long long) size);
+
+ if (size < 0x10000)
+ return -1;
+
+ meta_off = ((size / 0x200)-11) * 0x200;
+ hpt = volume_id_get_buffer(id, off + meta_off, 0x200);
+ if (hpt == NULL)
+ return -1;
+
+ magic = hpt->magic;
+ if (magic != cpu_to_le32(HPT45X_MAGIC_OK) && magic != cpu_to_le32(HPT45X_MAGIC_BAD))
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "highpoint_raid_member";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct hpfs_super
+{
+ uint8_t magic[4];
+ uint8_t version;
+} __attribute__((__packed__));
+
+#define HPFS_SUPERBLOCK_OFFSET 0x2000
+
+int volume_id_probe_hpfs(struct volume_id *id, uint64_t off)
+{
+ struct hpfs_super *hs;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ hs = volume_id_get_buffer(id, off + HPFS_SUPERBLOCK_OFFSET, 0x200);
+ if (hs == NULL)
+ return -1;
+
+ if (memcmp(hs->magic, "\x49\xe8\x95\xf9", 4) == 0) {
+ sprintf(id->type_version, "%u", hs->version);
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "hpfs";
+ return 0;
+ }
+
+ return -1;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+#define ISO_SUPERBLOCK_OFFSET 0x8000
+#define ISO_SECTOR_SIZE 0x800
+#define ISO_VD_OFFSET (ISO_SUPERBLOCK_OFFSET + ISO_SECTOR_SIZE)
+#define ISO_VD_PRIMARY 0x1
+#define ISO_VD_SUPPLEMENTARY 0x2
+#define ISO_VD_END 0xff
+#define ISO_VD_MAX 16
+
+struct iso_volume_descriptor {
+ uint8_t vd_type;
+ uint8_t vd_id[5];
+ uint8_t vd_version;
+ uint8_t flags;
+ uint8_t system_id[32];
+ uint8_t volume_id[32];
+ uint8_t unused[8];
+ uint8_t space_size[8];
+ uint8_t escape_sequences[8];
+} __attribute__((__packed__));
+
+struct high_sierra_volume_descriptor {
+ uint8_t foo[8];
+ uint8_t type;
+ uint8_t id[4];
+ uint8_t version;
+} __attribute__((__packed__));
+
+int volume_id_probe_iso9660(struct volume_id *id, uint64_t off)
+{
+ uint8_t *buf;
+ struct iso_volume_descriptor *is;
+ struct high_sierra_volume_descriptor *hs;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ buf = volume_id_get_buffer(id, off + ISO_SUPERBLOCK_OFFSET, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ is = (struct iso_volume_descriptor *) buf;
+
+ if (memcmp(is->vd_id, "CD001", 5) == 0) {
+ int vd_offset;
+ int i;
+
+ dbg("read label from PVD");
+ volume_id_set_label_raw(id, is->volume_id, 32);
+ volume_id_set_label_string(id, is->volume_id, 32);
+
+ dbg("looking for SVDs");
+ vd_offset = ISO_VD_OFFSET;
+ for (i = 0; i < ISO_VD_MAX; i++) {
+ uint8_t svd_label[64];
+
+ is = volume_id_get_buffer(id, off + vd_offset, 0x200);
+ if (is == NULL || is->vd_type == ISO_VD_END)
+ break;
+ if (is->vd_type != ISO_VD_SUPPLEMENTARY)
+ continue;
+
+ dbg("found SVD at offset 0x%llx", (unsigned long long) (off + vd_offset));
+ if (memcmp(is->escape_sequences, "%/@", 3) == 0||
+ memcmp(is->escape_sequences, "%/C", 3) == 0||
+ memcmp(is->escape_sequences, "%/E", 3) == 0) {
+ dbg("Joliet extension found");
+ volume_id_set_unicode16((char *)svd_label, sizeof(svd_label), is->volume_id, BE, 32);
+ if (memcmp(id->label, svd_label, 16) == 0) {
+ dbg("SVD label is identical, use the possibly longer PVD one");
+ break;
+ }
+
+ volume_id_set_label_raw(id, is->volume_id, 32);
+ volume_id_set_label_string(id, svd_label, 32);
+ strcpy(id->type_version, "Joliet Extension");
+ goto found;
+ }
+ vd_offset += ISO_SECTOR_SIZE;
+ }
+ goto found;
+ }
+
+ hs = (struct high_sierra_volume_descriptor *) buf;
+
+ if (memcmp(hs->id, "CDROM", 5) == 0) {
+ strcpy(id->type_version, "High Sierra");
+ goto found;
+ }
+
+ return -1;
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "iso9660";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct isw_meta {
+ uint8_t sig[32];
+ uint32_t check_sum;
+ uint32_t mpb_size;
+ uint32_t family_num;
+ uint32_t generation_num;
+} __attribute__((packed));
+
+#define ISW_SIGNATURE "Intel Raid ISM Cfg Sig. "
+
+
+int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ uint64_t meta_off;
+ struct isw_meta *isw;
+
+ dbg("probing at offset 0x%llx, size 0x%llx",
+ (unsigned long long) off, (unsigned long long) size);
+
+ if (size < 0x10000)
+ return -1;
+
+ meta_off = ((size / 0x200)-2) * 0x200;
+ isw = volume_id_get_buffer(id, off + meta_off, 0x200);
+ if (isw == NULL)
+ return -1;
+
+ if (memcmp(isw->sig, ISW_SIGNATURE, sizeof(ISW_SIGNATURE)-1) != 0)
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ memcpy(id->type_version, &isw->sig[sizeof(ISW_SIGNATURE)-1], 6);
+ id->type = "isw_raid_member";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct jfs_super_block {
+ uint8_t magic[4];
+ uint32_t version;
+ uint64_t size;
+ uint32_t bsize;
+ uint32_t dummy1;
+ uint32_t pbsize;
+ uint32_t dummy2[27];
+ uint8_t uuid[16];
+ uint8_t label[16];
+ uint8_t loguuid[16];
+} __attribute__((__packed__));
+
+#define JFS_SUPERBLOCK_OFFSET 0x8000
+
+int volume_id_probe_jfs(struct volume_id *id, uint64_t off)
+{
+ struct jfs_super_block *js;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ js = volume_id_get_buffer(id, off + JFS_SUPERBLOCK_OFFSET, 0x200);
+ if (js == NULL)
+ return -1;
+
+ if (memcmp(js->magic, "JFS1", 4) != 0)
+ return -1;
+
+ volume_id_set_label_raw(id, js->label, 16);
+ volume_id_set_label_string(id, js->label, 16);
+ volume_id_set_uuid(id, js->uuid, UUID_DCE);
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "jfs";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct mdp_super_block {
+ uint32_t md_magic;
+ uint32_t major_version;
+ uint32_t minor_version;
+ uint32_t patch_version;
+ uint32_t gvalid_words;
+ uint32_t set_uuid0;
+ uint32_t ctime;
+ uint32_t level;
+ uint32_t size;
+ uint32_t nr_disks;
+ uint32_t raid_disks;
+ uint32_t md_minor;
+ uint32_t not_persistent;
+ uint32_t set_uuid1;
+ uint32_t set_uuid2;
+ uint32_t set_uuid3;
+} __attribute__((packed));
+
+#define MD_RESERVED_BYTES 0x10000
+#define MD_MAGIC 0xa92b4efc
+
+int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ uint64_t sboff;
+ uint8_t uuid[16];
+ struct mdp_super_block *mdp;
+
+ dbg("probing at offset 0x%llx, size 0x%llx",
+ (unsigned long long) off, (unsigned long long) size);
+
+ if (size < 0x10000)
+ return -1;
+
+ sboff = (size & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES;
+ mdp = volume_id_get_buffer(id, off + sboff, 0x800);
+ if (mdp == NULL)
+ return -1;
+
+ if (mdp->md_magic != cpu_to_le32(MD_MAGIC))
+ return -1;
+
+ memcpy(uuid, &mdp->set_uuid0, 4);
+ memcpy(&uuid[4], &mdp->set_uuid1, 12);
+ volume_id_set_uuid(id, uuid, UUID_DCE);
+
+ snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u.%u",
+ le32_to_cpu(mdp->major_version),
+ le32_to_cpu(mdp->minor_version),
+ le32_to_cpu(mdp->patch_version));
+
+ dbg("found raid signature");
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "linux_raid_member";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct swap_header_v1_2 {
+ uint8_t bootbits[1024];
+ uint32_t version;
+ uint32_t last_page;
+ uint32_t nr_badpages;
+ uint8_t uuid[16];
+ uint8_t volume_name[16];
+} __attribute__((__packed__));
+
+#define LARGEST_PAGESIZE 0x4000
+
+int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off)
+{
+ struct swap_header_v1_2 *sw;
+ const uint8_t *buf;
+ unsigned page;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ /* the swap signature is at the end of the PAGE_SIZE */
+ for (page = 0x1000; page <= LARGEST_PAGESIZE; page <<= 1) {
+ buf = volume_id_get_buffer(id, off + page-10, 10);
+ if (buf == NULL)
+ return -1;
+
+ if (memcmp(buf, "SWAP-SPACE", 10) == 0) {
+ id->type_version[0] = '1';
+ id->type_version[1] = '\0';
+ goto found;
+ }
+
+ if (memcmp(buf, "SWAPSPACE2", 10) == 0) {
+ sw = volume_id_get_buffer(id, off, sizeof(struct swap_header_v1_2));
+ if (sw == NULL)
+ return -1;
+ id->type_version[0] = '2';
+ id->type_version[1] = '\0';
+ volume_id_set_label_raw(id, sw->volume_name, 16);
+ volume_id_set_label_string(id, sw->volume_name, 16);
+ volume_id_set_uuid(id, sw->uuid, UUID_DCE);
+ goto found;
+ }
+ }
+ return -1;
+
+found:
+ volume_id_set_usage(id, VOLUME_ID_OTHER);
+ id->type = "swap";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct lsi_meta {
+ uint8_t sig[6];
+} __attribute__((packed));
+
+#define LSI_SIGNATURE "$XIDE$"
+
+int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ uint64_t meta_off;
+ struct lsi_meta *lsi;
+
+ dbg("probing at offset 0x%llx, size 0x%llx",
+ (unsigned long long) off, (unsigned long long) size);
+
+ if (size < 0x10000)
+ return -1;
+
+ meta_off = ((size / 0x200)-1) * 0x200;
+ lsi = volume_id_get_buffer(id, off + meta_off, 0x200);
+ if (lsi == NULL)
+ return -1;
+
+ if (memcmp(lsi->sig, LSI_SIGNATURE, sizeof(LSI_SIGNATURE)-1) != 0)
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "lsi_mega_raid_member";
+
+ return 0;
+}
--- /dev/null
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2005 W. Michael Petullo <mike@flyn.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "volume_id_internal.h"
+
+#define SECTOR_SHIFT 9
+#define SECTOR_SIZE (1 << SECTOR_SHIFT)
+
+#define LUKS_CIPHERNAME_L 32
+#define LUKS_CIPHERMODE_L 32
+#define LUKS_HASHSPEC_L 32
+#define LUKS_DIGESTSIZE 20
+#define LUKS_SALTSIZE 32
+#define LUKS_NUMKEYS 8
+
+static const uint8_t LUKS_MAGIC[] = { 'L','U','K','S', 0xba, 0xbe };
+#define LUKS_MAGIC_L 6
+#define LUKS_PHDR_SIZE (sizeof(struct luks_phdr)/SECTOR_SIZE+1)
+#define UUID_STRING_L 40
+
+struct luks_phdr {
+ uint8_t magic[LUKS_MAGIC_L];
+ uint16_t version;
+ uint8_t cipherName[LUKS_CIPHERNAME_L];
+ uint8_t cipherMode[LUKS_CIPHERMODE_L];
+ uint8_t hashSpec[LUKS_HASHSPEC_L];
+ uint32_t payloadOffset;
+ uint32_t keyBytes;
+ uint8_t mkDigest[LUKS_DIGESTSIZE];
+ uint8_t mkDigestSalt[LUKS_SALTSIZE];
+ uint32_t mkDigestIterations;
+ uint8_t uuid[UUID_STRING_L];
+ struct {
+ uint32_t active;
+ uint32_t passwordIterations;
+ uint8_t passwordSalt[LUKS_SALTSIZE];
+ uint32_t keyMaterialOffset;
+ uint32_t stripes;
+ } keyblock[LUKS_NUMKEYS];
+};
+
+int volume_id_probe_luks(struct volume_id *id, uint64_t off)
+{
+ struct luks_phdr *header;
+
+ header = volume_id_get_buffer(id, off, LUKS_PHDR_SIZE);
+ if (header == NULL)
+ return -1;
+
+ if (memcmp(header->magic, LUKS_MAGIC, LUKS_MAGIC_L))
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_CRYPTO);
+ volume_id_set_uuid(id, header->uuid, UUID_DCE_STRING);
+
+ id->type = "crypto_LUKS";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct lvm1_super_block {
+ uint8_t id[2];
+} __attribute__((packed));
+
+struct lvm2_super_block {
+ uint8_t id[8];
+ uint64_t sector_xl;
+ uint32_t crc_xl;
+ uint32_t offset_xl;
+ uint8_t type[8];
+} __attribute__((packed));
+
+#define LVM1_SB_OFF 0x400
+#define LVM1_MAGIC "HM"
+
+int volume_id_probe_lvm1(struct volume_id *id, uint64_t off)
+{
+ const uint8_t *buf;
+ struct lvm1_super_block *lvm;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ buf = volume_id_get_buffer(id, off + LVM1_SB_OFF, 0x800);
+ if (buf == NULL)
+ return -1;
+
+ lvm = (struct lvm1_super_block *) buf;
+
+ if (memcmp(lvm->id, LVM1_MAGIC, 2) != 0)
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "LVM1_member";
+
+ return 0;
+}
+
+#define LVM2_LABEL_ID "LABELONE"
+#define LVM2LABEL_SCAN_SECTORS 4
+
+int volume_id_probe_lvm2(struct volume_id *id, uint64_t off)
+{
+ const uint8_t *buf;
+ unsigned soff;
+ struct lvm2_super_block *lvm;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ buf = volume_id_get_buffer(id, off, LVM2LABEL_SCAN_SECTORS * 0x200);
+ if (buf == NULL)
+ return -1;
+
+
+ for (soff = 0; soff < LVM2LABEL_SCAN_SECTORS * 0x200; soff += 0x200) {
+ lvm = (struct lvm2_super_block *) &buf[soff];
+
+ if (memcmp(lvm->id, LVM2_LABEL_ID, 8) == 0)
+ goto found;
+ }
+
+ return -1;
+
+ found:
+ memcpy(id->type_version, lvm->type, 8);
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "LVM2_member";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct mac_driver_desc {
+ uint8_t signature[2];
+ uint16_t block_size;
+ uint32_t block_count;
+} __attribute__((__packed__));
+
+struct mac_partition {
+ uint8_t signature[2];
+ uint16_t res1;
+ uint32_t map_count;
+ uint32_t start_block;
+ uint32_t block_count;
+ uint8_t name[32];
+ uint8_t type[32];
+} __attribute__((__packed__));
+
+int volume_id_probe_mac_partition_map(struct volume_id *id, uint64_t off)
+{
+ const uint8_t *buf;
+ struct mac_driver_desc *driver;
+ struct mac_partition *part;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ buf = volume_id_get_buffer(id, off, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ part = (struct mac_partition *) buf;
+ if ((memcmp(part->signature, "PM", 2) == 0) &&
+ (memcmp(part->type, "Apple_partition_map", 19) == 0)) {
+ /* linux creates an own subdevice for the map
+ * just return the type if the drive header is missing */
+ volume_id_set_usage(id, VOLUME_ID_PARTITIONTABLE);
+ id->type = "mac_partition_map";
+ return 0;
+ }
+
+ driver = (struct mac_driver_desc *) buf;
+ if (memcmp(driver->signature, "ER", 2) == 0) {
+ /* we are on a main device, like a CD
+ * just try to probe the first partition from the map */
+ unsigned bsize = be16_to_cpu(driver->block_size);
+ int part_count;
+ int i;
+
+ /* get first entry of partition table */
+ buf = volume_id_get_buffer(id, off + bsize, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ part = (struct mac_partition *) buf;
+ if (memcmp(part->signature, "PM", 2) != 0)
+ return -1;
+
+ part_count = be32_to_cpu(part->map_count);
+ dbg("expecting %d partition entries", part_count);
+
+ if (id->partitions != NULL)
+ free(id->partitions);
+ id->partitions =
+ malloc(part_count * sizeof(struct volume_id_partition));
+ if (id->partitions == NULL)
+ return -1;
+ memset(id->partitions, 0x00, sizeof(struct volume_id_partition));
+
+ id->partition_count = part_count;
+
+ for (i = 0; i < part_count; i++) {
+ uint64_t poff;
+ uint64_t plen;
+
+ buf = volume_id_get_buffer(id, off + ((i+1) * bsize), 0x200);
+ if (buf == NULL)
+ return -1;
+
+ part = (struct mac_partition *) buf;
+ if (memcmp(part->signature, "PM", 2) != 0)
+ return -1;
+
+ poff = be32_to_cpu(part->start_block) * bsize;
+ plen = be32_to_cpu(part->block_count) * bsize;
+ dbg("found '%s' partition entry at 0x%llx, len 0x%llx",
+ part->type, (unsigned long long) poff, (unsigned long long) plen);
+
+ id->partitions[i].off = poff;
+ id->partitions[i].len = plen;
+
+ if (memcmp(part->type, "Apple_Free", 10) == 0) {
+ volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_UNUSED);
+ } else if (memcmp(part->type, "Apple_partition_map", 19) == 0) {
+ volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_PARTITIONTABLE);
+ } else {
+ volume_id_set_usage_part(&id->partitions[i], VOLUME_ID_UNPROBED);
+ }
+ }
+ volume_id_set_usage(id, VOLUME_ID_PARTITIONTABLE);
+ id->type = "mac_partition_map";
+ return 0;
+ }
+
+ return -1;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct minix_super_block
+{
+ uint16_t s_ninodes;
+ uint16_t s_nzones;
+ uint16_t s_imap_blocks;
+ uint16_t s_zmap_blocks;
+ uint16_t s_firstdatazone;
+ uint16_t s_log_zone_size;
+ uint32_t s_max_size;
+ uint16_t s_magic;
+ uint16_t s_state;
+ uint32_t s_zones;
+} __attribute__((__packed__));
+
+#define MINIX_SUPERBLOCK_OFFSET 0x400
+
+int volume_id_probe_minix(struct volume_id *id, uint64_t off)
+{
+ struct minix_super_block *ms;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ ms = volume_id_get_buffer(id, off + MINIX_SUPERBLOCK_OFFSET, 0x200);
+ if (ms == NULL)
+ return -1;
+
+ if (le16_to_cpu(ms->s_magic) == 0x137f) {
+ id->type_version[0] = '1';
+ goto found;
+ }
+
+ if (le16_to_cpu(ms->s_magic) == 0x1387) {
+ id->type_version[0] = '1';
+ goto found;
+ }
+
+ if (le16_to_cpu(ms->s_magic) == 0x2468) {
+ id->type_version[0] = '2';
+ goto found;
+ }
+
+ if (le16_to_cpu(ms->s_magic) == 0x2478) {
+ id->type_version[0] = '2';
+ goto found;
+ }
+
+ return -1;
+
+ found:
+ id->type_version[1] = '\0';
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "minix";
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct msdos_partition_entry {
+ uint8_t boot_ind;
+ uint8_t head;
+ uint8_t sector;
+ uint8_t cyl;
+ uint8_t sys_ind;
+ uint8_t end_head;
+ uint8_t end_sector;
+ uint8_t end_cyl;
+ uint32_t start_sect;
+ uint32_t nr_sects;
+} __attribute__((packed));
+
+#define MSDOS_MAGIC "\x55\xaa"
+#define MSDOS_PARTTABLE_OFFSET 0x1be
+#define MSDOS_SIG_OFF 0x1fe
+#define BSIZE 0x200
+#define DOS_EXTENDED_PARTITION 0x05
+#define LINUX_EXTENDED_PARTITION 0x85
+#define WIN98_EXTENDED_PARTITION 0x0f
+#define LINUX_RAID_PARTITION 0xfd
+#define is_extended(type) \
+ (type == DOS_EXTENDED_PARTITION || \
+ type == WIN98_EXTENDED_PARTITION || \
+ type == LINUX_EXTENDED_PARTITION)
+#define is_raid(type) \
+ (type == LINUX_RAID_PARTITION)
+
+int volume_id_probe_msdos_part_table(struct volume_id *id, uint64_t off)
+{
+ const uint8_t *buf;
+ int i;
+ uint64_t poff;
+ uint64_t plen;
+ uint64_t extended = 0;
+ uint64_t current;
+ uint64_t next;
+ int limit;
+ int empty = 1;
+ struct msdos_partition_entry *part;
+ struct volume_id_partition *p;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ buf = volume_id_get_buffer(id, off, 0x200);
+ if (buf == NULL)
+ return -1;
+
+ if (memcmp(&buf[MSDOS_SIG_OFF], MSDOS_MAGIC, 2) != 0)
+ return -1;
+
+ /* check flags on all entries for a valid partition table */
+ part = (struct msdos_partition_entry*) &buf[MSDOS_PARTTABLE_OFFSET];
+ for (i = 0; i < 4; i++) {
+ if (part[i].boot_ind != 0 &&
+ part[i].boot_ind != 0x80)
+ return -1;
+
+ if (part[i].nr_sects != 0)
+ empty = 0;
+ }
+ if (empty == 1)
+ return -1;
+
+ if (id->partitions != NULL)
+ free(id->partitions);
+ id->partitions = malloc(VOLUME_ID_PARTITIONS_MAX *
+ sizeof(struct volume_id_partition));
+ if (id->partitions == NULL)
+ return -1;
+ memset(id->partitions, 0x00,
+ VOLUME_ID_PARTITIONS_MAX * sizeof(struct volume_id_partition));
+
+ for (i = 0; i < 4; i++) {
+ poff = (uint64_t) le32_to_cpu(part[i].start_sect) * BSIZE;
+ plen = (uint64_t) le32_to_cpu(part[i].nr_sects) * BSIZE;
+
+ if (plen == 0)
+ continue;
+
+ p = &id->partitions[i];
+
+ p->partition_type_raw = part[i].sys_ind;
+
+ if (is_extended(part[i].sys_ind)) {
+ dbg("found extended partition at 0x%llx", (unsigned long long) poff);
+ volume_id_set_usage_part(p, VOLUME_ID_PARTITIONTABLE);
+ p->type = "msdos_extended_partition";
+ if (extended == 0)
+ extended = off + poff;
+ } else {
+ dbg("found 0x%x data partition at 0x%llx, len 0x%llx",
+ part[i].sys_ind, (unsigned long long) poff, (unsigned long long) plen);
+
+ if (is_raid(part[i].sys_ind))
+ volume_id_set_usage_part(p, VOLUME_ID_RAID);
+ else
+ volume_id_set_usage_part(p, VOLUME_ID_UNPROBED);
+ }
+
+ p->off = off + poff;
+ p->len = plen;
+ id->partition_count = i+1;
+ }
+
+ next = extended;
+ current = extended;
+ limit = 50;
+
+ /* follow extended partition chain and add data partitions */
+ while (next != 0) {
+ if (limit-- == 0) {
+ dbg("extended chain limit reached");
+ break;
+ }
+
+ buf = volume_id_get_buffer(id, current, 0x200);
+ if (buf == NULL)
+ break;
+
+ part = (struct msdos_partition_entry*) &buf[MSDOS_PARTTABLE_OFFSET];
+
+ if (memcmp(&buf[MSDOS_SIG_OFF], MSDOS_MAGIC, 2) != 0)
+ break;
+
+ next = 0;
+
+ for (i = 0; i < 4; i++) {
+ poff = (uint64_t) le32_to_cpu(part[i].start_sect) * BSIZE;
+ plen = (uint64_t) le32_to_cpu(part[i].nr_sects) * BSIZE;
+
+ if (plen == 0)
+ continue;
+
+ if (is_extended(part[i].sys_ind)) {
+ dbg("found extended partition at 0x%llx", (unsigned long long) poff);
+ if (next == 0)
+ next = extended + poff;
+ } else {
+ dbg("found 0x%x data partition at 0x%llx, len 0x%llx",
+ part[i].sys_ind, (unsigned long long) poff, (unsigned long long) plen);
+
+ /* we always start at the 5th entry */
+ while (id->partition_count < 4)
+ volume_id_set_usage_part(&id->partitions[id->partition_count++], VOLUME_ID_UNUSED);
+
+ p = &id->partitions[id->partition_count];
+
+ if (is_raid(part[i].sys_ind))
+ volume_id_set_usage_part(p, VOLUME_ID_RAID);
+ else
+ volume_id_set_usage_part(p, VOLUME_ID_UNPROBED);
+
+ p->off = current + poff;
+ p->len = plen;
+ id->partition_count++;
+
+ p->partition_type_raw = part[i].sys_ind;
+
+ if (id->partition_count >= VOLUME_ID_PARTITIONS_MAX) {
+ dbg("too many partitions");
+ next = 0;
+ }
+ }
+ }
+
+ current = next;
+ }
+
+ volume_id_set_usage(id, VOLUME_ID_PARTITIONTABLE);
+ id->type = "msdos_partition_table";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct ntfs_super_block {
+ uint8_t jump[3];
+ uint8_t oem_id[8];
+ uint16_t bytes_per_sector;
+ uint8_t sectors_per_cluster;
+ uint16_t reserved_sectors;
+ uint8_t fats;
+ uint16_t root_entries;
+ uint16_t sectors;
+ uint8_t media_type;
+ uint16_t sectors_per_fat;
+ uint16_t sectors_per_track;
+ uint16_t heads;
+ uint32_t hidden_sectors;
+ uint32_t large_sectors;
+ uint16_t unused[2];
+ uint64_t number_of_sectors;
+ uint64_t mft_cluster_location;
+ uint64_t mft_mirror_cluster_location;
+ int8_t cluster_per_mft_record;
+ uint8_t reserved1[3];
+ int8_t cluster_per_index_record;
+ uint8_t reserved2[3];
+ uint8_t volume_serial[8];
+ uint16_t checksum;
+} __attribute__((__packed__));
+
+struct master_file_table_record {
+ uint8_t magic[4];
+ uint16_t usa_ofs;
+ uint16_t usa_count;
+ uint64_t lsn;
+ uint16_t sequence_number;
+ uint16_t link_count;
+ uint16_t attrs_offset;
+ uint16_t flags;
+ uint32_t bytes_in_use;
+ uint32_t bytes_allocated;
+} __attribute__((__packed__));
+
+struct file_attribute {
+ uint32_t type;
+ uint32_t len;
+ uint8_t non_resident;
+ uint8_t name_len;
+ uint16_t name_offset;
+ uint16_t flags;
+ uint16_t instance;
+ uint32_t value_len;
+ uint16_t value_offset;
+} __attribute__((__packed__));
+
+struct volume_info {
+ uint64_t reserved;
+ uint8_t major_ver;
+ uint8_t minor_ver;
+} __attribute__((__packed__));
+
+#define MFT_RECORD_VOLUME 3
+#define MFT_RECORD_ATTR_VOLUME_NAME 0x60
+#define MFT_RECORD_ATTR_VOLUME_INFO 0x70
+#define MFT_RECORD_ATTR_OBJECT_ID 0x40
+#define MFT_RECORD_ATTR_END 0xffffffffu
+
+int volume_id_probe_ntfs(struct volume_id *id, uint64_t off)
+{
+ unsigned sector_size;
+ unsigned cluster_size;
+ uint64_t mft_cluster;
+ uint64_t mft_off;
+ unsigned mft_record_size;
+ unsigned attr_type;
+ unsigned attr_off;
+ unsigned attr_len;
+ unsigned val_off;
+ unsigned val_len;
+ struct master_file_table_record *mftr;
+ struct ntfs_super_block *ns;
+ const uint8_t *buf;
+ const uint8_t *val;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ ns = volume_id_get_buffer(id, off, 0x200);
+ if (ns == NULL)
+ return -1;
+
+ if (memcmp(ns->oem_id, "NTFS", 4) != 0)
+ return -1;
+
+ volume_id_set_uuid(id, ns->volume_serial, UUID_NTFS);
+
+ sector_size = le16_to_cpu(ns->bytes_per_sector);
+ cluster_size = ns->sectors_per_cluster * sector_size;
+ mft_cluster = le64_to_cpu(ns->mft_cluster_location);
+ mft_off = mft_cluster * cluster_size;
+
+ if (ns->cluster_per_mft_record < 0)
+ /* size = -log2(mft_record_size); normally 1024 Bytes */
+ mft_record_size = 1 << -ns->cluster_per_mft_record;
+ else
+ mft_record_size = ns->cluster_per_mft_record * cluster_size;
+
+ dbg("sectorsize 0x%x", sector_size);
+ dbg("clustersize 0x%x", cluster_size);
+ dbg("mftcluster %llu", (unsigned long long) mft_cluster);
+ dbg("mftoffset 0x%llx", (unsigned long long) mft_off);
+ dbg("cluster per mft_record %i", ns->cluster_per_mft_record);
+ dbg("mft record size %i", mft_record_size);
+
+ buf = volume_id_get_buffer(id, off + mft_off + (MFT_RECORD_VOLUME * mft_record_size),
+ mft_record_size);
+ if (buf == NULL)
+ goto found;
+
+ mftr = (struct master_file_table_record*) buf;
+
+ dbg("mftr->magic '%c%c%c%c'", mftr->magic[0], mftr->magic[1], mftr->magic[2], mftr->magic[3]);
+ if (memcmp(mftr->magic, "FILE", 4) != 0)
+ goto found;
+
+ attr_off = le16_to_cpu(mftr->attrs_offset);
+ dbg("file $Volume's attributes are at offset %i", attr_off);
+
+ while (1) {
+ struct file_attribute *attr;
+
+ attr = (struct file_attribute*) &buf[attr_off];
+ attr_type = le32_to_cpu(attr->type);
+ attr_len = le16_to_cpu(attr->len);
+ val_off = le16_to_cpu(attr->value_offset);
+ val_len = le32_to_cpu(attr->value_len);
+ attr_off += attr_len;
+
+ if (attr_len == 0)
+ break;
+
+ if (attr_off >= mft_record_size)
+ break;
+
+ if (attr_type == MFT_RECORD_ATTR_END)
+ break;
+
+ dbg("found attribute type 0x%x, len %i, at offset %i",
+ attr_type, attr_len, attr_off);
+
+ if (attr_type == MFT_RECORD_ATTR_VOLUME_INFO) {
+ struct volume_info *info;
+ dbg("found info, len %i", val_len);
+ info = (struct volume_info*) (((uint8_t *) attr) + val_off);
+ snprintf(id->type_version, sizeof(id->type_version)-1,
+ "%u.%u", info->major_ver, info->minor_ver);
+ }
+
+ if (attr_type == MFT_RECORD_ATTR_VOLUME_NAME) {
+ dbg("found label, len %i", val_len);
+ if (val_len > VOLUME_ID_LABEL_SIZE)
+ val_len = VOLUME_ID_LABEL_SIZE;
+
+ val = ((uint8_t *) attr) + val_off;
+ volume_id_set_label_raw(id, val, val_len);
+ volume_id_set_label_unicode16(id, val, LE, val_len);
+ }
+ }
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "ntfs";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct nvidia_meta {
+ uint8_t vendor[8];
+ uint32_t size;
+ uint32_t chksum;
+ uint16_t version;
+} __attribute__((packed));
+
+#define NVIDIA_SIGNATURE "NVIDIA"
+
+int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ uint64_t meta_off;
+ struct nvidia_meta *nv;
+
+ dbg("probing at offset 0x%llx, size 0x%llx",
+ (unsigned long long) off, (unsigned long long) size);
+
+ if (size < 0x10000)
+ return -1;
+
+ meta_off = ((size / 0x200)-2) * 0x200;
+ nv = volume_id_get_buffer(id, off + meta_off, 0x200);
+ if (nv == NULL)
+ return -1;
+
+ if (memcmp(nv->vendor, NVIDIA_SIGNATURE, sizeof(NVIDIA_SIGNATURE)-1) != 0)
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ snprintf(id->type_version, sizeof(id->type_version)-1, "%u", le16_to_cpu(nv->version));
+ id->type = "nvidia_raid_member";
+
+ return 0;
+}
--- /dev/null
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) Andre Masella <andre@masella.no-ip.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "volume_id_internal.h"
+
+/* All these values are taken from ocfs2-tools's ocfs2_fs.h */
+#define OCFS2_VOL_UUID_LEN 16
+#define OCFS2_MAX_VOL_LABEL_LEN 64
+#define OCFS2_SUPERBLOCK_OFFSET 0x2000
+
+
+/* This is the superblock. The OCFS2 header files have structs in structs.
+This is one has been simplified since we only care about the superblock.
+*/
+
+struct ocfs2_super_block {
+ uint8_t i_signature[8]; /* Signature for validation */
+ uint32_t i_generation; /* Generation number */
+ int16_t i_suballoc_slot; /* Slot suballocator this inode belongs to */
+ uint16_t i_suballoc_bit; /* Bit offset in suballocator block group */
+ uint32_t i_reserved0;
+ uint32_t i_clusters; /* Cluster count */
+ uint32_t i_uid; /* Owner UID */
+ uint32_t i_gid; /* Owning GID */
+ uint64_t i_size; /* Size in bytes */
+ uint16_t i_mode; /* File mode */
+ uint16_t i_links_count; /* Links count */
+ uint32_t i_flags; /* File flags */
+ uint64_t i_atime; /* Access time */
+ uint64_t i_ctime; /* Creation time */
+ uint64_t i_mtime; /* Modification time */
+ uint64_t i_dtime; /* Deletion time */
+ uint64_t i_blkno; /* Offset on disk, in blocks */
+ uint64_t i_last_eb_blk; /* Pointer to last extent block */
+ uint32_t i_fs_generation; /* Generation per fs-instance */
+ uint32_t i_atime_nsec;
+ uint32_t i_ctime_nsec;
+ uint32_t i_mtime_nsec;
+ uint64_t i_reserved1[9];
+ uint64_t i_pad1; /* Generic way to refer to this 64bit union */
+ /* Normally there is a union of the different block types, but we only care about the superblock. */
+ uint16_t s_major_rev_level;
+ uint16_t s_minor_rev_level;
+ uint16_t s_mnt_count;
+ int16_t s_max_mnt_count;
+ uint16_t s_state; /* File system state */
+ uint16_t s_errors; /* Behaviour when detecting errors */
+ uint32_t s_checkinterval; /* Max time between checks */
+ uint64_t s_lastcheck; /* Time of last check */
+ uint32_t s_creator_os; /* OS */
+ uint32_t s_feature_compat; /* Compatible feature set */
+ uint32_t s_feature_incompat; /* Incompatible feature set */
+ uint32_t s_feature_ro_compat; /* Readonly-compatible feature set */
+ uint64_t s_root_blkno; /* Offset, in blocks, of root directory dinode */
+ uint64_t s_system_dir_blkno; /* Offset, in blocks, of system directory dinode */
+ uint32_t s_blocksize_bits; /* Blocksize for this fs */
+ uint32_t s_clustersize_bits; /* Clustersize for this fs */
+ uint16_t s_max_slots; /* Max number of simultaneous mounts before tunefs required */
+ uint16_t s_reserved1;
+ uint32_t s_reserved2;
+ uint64_t s_first_cluster_group; /* Block offset of 1st cluster group header */
+ uint8_t s_label[OCFS2_MAX_VOL_LABEL_LEN]; /* Label for mounting, etc. */
+ uint8_t s_uuid[OCFS2_VOL_UUID_LEN]; /* 128-bit uuid */
+} __attribute__((__packed__));
+
+int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off)
+{
+ struct ocfs2_super_block *os;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ os = volume_id_get_buffer(id, off + OCFS2_SUPERBLOCK_OFFSET, 0x200);
+ if (os == NULL)
+ return -1;
+
+ if (memcmp(os->i_signature, "OCFSV2", 6) != 0) {
+ return -1;
+ }
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ volume_id_set_label_raw(id, os->s_label, OCFS2_MAX_VOL_LABEL_LEN < VOLUME_ID_LABEL_SIZE ?
+ OCFS2_MAX_VOL_LABEL_LEN : VOLUME_ID_LABEL_SIZE);
+ volume_id_set_label_string(id, os->s_label, OCFS2_MAX_VOL_LABEL_LEN < VOLUME_ID_LABEL_SIZE ?
+ OCFS2_MAX_VOL_LABEL_LEN : VOLUME_ID_LABEL_SIZE);
+ volume_id_set_uuid(id, os->s_uuid, UUID_DCE);
+ id->type = "ocfs2";
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct promise_meta {
+ uint8_t sig[24];
+} __attribute__((packed));
+
+#define PDC_CONFIG_OFF 0x1200
+#define PDC_SIGNATURE "Promise Technology, Inc."
+
+int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ static const unsigned short sectors[] = {
+ 63, 255, 256, 16, 399
+ };
+
+ struct promise_meta *pdc;
+ unsigned i;
+
+ dbg("probing at offset 0x%llx, size 0x%llx",
+ (unsigned long long) off, (unsigned long long) size);
+
+ if (size < 0x40000)
+ return -1;
+
+ for (i = 0; i < ARRAY_SIZE(sectors); i++) {
+ uint64_t meta_off;
+
+ meta_off = ((size / 0x200) - sectors[i]) * 0x200;
+ pdc = volume_id_get_buffer(id, off + meta_off, 0x200);
+ if (pdc == NULL)
+ return -1;
+
+ if (memcmp(pdc->sig, PDC_SIGNATURE, sizeof(PDC_SIGNATURE)-1) == 0)
+ goto found;
+ }
+ return -1;
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type = "promise_fasttrack_raid_member";
+
+ return 0;
+}
--- /dev/null
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2005 Tobias Klauser <tklauser@access.unizh.ch>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "volume_id_internal.h"
+
+struct reiserfs_super_block {
+ uint32_t blocks_count;
+ uint32_t free_blocks;
+ uint32_t root_block;
+ uint32_t journal_block;
+ uint32_t journal_dev;
+ uint32_t orig_journal_size;
+ uint32_t dummy2[5];
+ uint16_t blocksize;
+ uint16_t dummy3[3];
+ uint8_t magic[12];
+ uint32_t dummy4[5];
+ uint8_t uuid[16];
+ uint8_t label[16];
+} __attribute__((__packed__));
+
+struct reiser4_super_block {
+ uint8_t magic[16];
+ uint16_t dummy[2];
+ uint8_t uuid[16];
+ uint8_t label[16];
+ uint64_t dummy2;
+} __attribute__((__packed__));
+
+#define REISERFS1_SUPERBLOCK_OFFSET 0x2000
+#define REISERFS_SUPERBLOCK_OFFSET 0x10000
+
+int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off)
+{
+ struct reiserfs_super_block *rs;
+ struct reiser4_super_block *rs4;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ rs = volume_id_get_buffer(id, off + REISERFS_SUPERBLOCK_OFFSET, 0x200);
+ if (rs == NULL)
+ return -1;
+
+ if (memcmp(rs->magic, "ReIsErFs", 8) == 0) {
+ strcpy(id->type_version, "3.5");
+ goto found;
+ }
+ if (memcmp(rs->magic, "ReIsEr2Fs", 9) == 0) {
+ strcpy(id->type_version, "3.6");
+ goto found_label;
+ }
+ if (memcmp(rs->magic, "ReIsEr3Fs", 9) == 0) {
+ strcpy(id->type_version, "JR");
+ goto found_label;
+ }
+
+ rs4 = (struct reiser4_super_block *) rs;
+ if (memcmp(rs4->magic, "ReIsEr4", 7) == 0) {
+ strcpy(id->type_version, "4");
+ volume_id_set_label_raw(id, rs4->label, 16);
+ volume_id_set_label_string(id, rs4->label, 16);
+ volume_id_set_uuid(id, rs4->uuid, UUID_DCE);
+ goto found;
+ }
+
+ rs = volume_id_get_buffer(id, off + REISERFS1_SUPERBLOCK_OFFSET, 0x200);
+ if (rs == NULL)
+ return -1;
+
+ if (memcmp(rs->magic, "ReIsErFs", 8) == 0) {
+ strcpy(id->type_version, "3.5");
+ goto found;
+ }
+
+ return -1;
+
+ found_label:
+ volume_id_set_label_raw(id, rs->label, 16);
+ volume_id_set_label_string(id, rs->label, 16);
+ volume_id_set_uuid(id, rs->uuid, UUID_DCE);
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "reiserfs";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct romfs_super {
+ uint8_t magic[8];
+ uint32_t size;
+ uint32_t checksum;
+ uint8_t name[0];
+} __attribute__((__packed__));
+
+int volume_id_probe_romfs(struct volume_id *id, uint64_t off)
+{
+ struct romfs_super *rfs;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ rfs = volume_id_get_buffer(id, off, 0x200);
+ if (rfs == NULL)
+ return -1;
+
+ if (memcmp(rfs->magic, "-rom1fs-", 4) == 0) {
+ size_t len = strlen((char *)rfs->name);
+
+ if (len) {
+ volume_id_set_label_raw(id, rfs->name, len);
+ volume_id_set_label_string(id, rfs->name, len);
+ }
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "romfs";
+ return 0;
+ }
+
+ return -1;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct silicon_meta {
+ uint8_t unknown0[0x2E];
+ uint8_t ascii_version[0x36 - 0x2E];
+ uint8_t diskname[0x56 - 0x36];
+ uint8_t unknown1[0x60 - 0x56];
+ uint32_t magic;
+ uint32_t unknown1a[0x6C - 0x64];
+ uint32_t array_sectors_low;
+ uint32_t array_sectors_high;
+ uint8_t unknown2[0x78 - 0x74];
+ uint32_t thisdisk_sectors;
+ uint8_t unknown3[0x100 - 0x7C];
+ uint8_t unknown4[0x104 - 0x100];
+ uint16_t product_id;
+ uint16_t vendor_id;
+ uint16_t minor_ver;
+ uint16_t major_ver;
+} __attribute__((packed));
+
+#define SILICON_MAGIC 0x2F000000
+
+int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ uint64_t meta_off;
+ struct silicon_meta *sil;
+
+ dbg("probing at offset 0x%llx, size 0x%llx",
+ (unsigned long long) off, (unsigned long long) size);
+
+ if (size < 0x10000)
+ return -1;
+
+ meta_off = ((size / 0x200)-1) * 0x200;
+ sil = volume_id_get_buffer(id, off + meta_off, 0x200);
+ if (sil == NULL)
+ return -1;
+
+ if (sil->magic != cpu_to_le32(SILICON_MAGIC))
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u",
+ le16_to_cpu(sil->major_ver), le16_to_cpu(sil->minor_ver));
+ id->type = "silicon_medley_raid_member";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+#define SYSV_NICINOD 100
+#define SYSV_NICFREE 50
+
+struct sysv_super
+{
+ uint16_t s_isize;
+ uint16_t s_pad0;
+ uint32_t s_fsize;
+ uint16_t s_nfree;
+ uint16_t s_pad1;
+ uint32_t s_free[SYSV_NICFREE];
+ uint16_t s_ninode;
+ uint16_t s_pad2;
+ uint16_t s_inode[SYSV_NICINOD];
+ uint8_t s_flock;
+ uint8_t s_ilock;
+ uint8_t s_fmod;
+ uint8_t s_ronly;
+ uint32_t s_time;
+ uint16_t s_dinfo[4];
+ uint32_t s_tfree;
+ uint16_t s_tinode;
+ uint16_t s_pad3;
+ uint8_t s_fname[6];
+ uint8_t s_fpack[6];
+ uint32_t s_fill[12];
+ uint32_t s_state;
+ uint32_t s_magic;
+ uint32_t s_type;
+} __attribute__((__packed__));
+
+#define XENIX_NICINOD 100
+#define XENIX_NICFREE 100
+
+struct xenix_super {
+ uint16_t s_isize;
+ uint32_t s_fsize;
+ uint16_t s_nfree;
+ uint32_t s_free[XENIX_NICFREE];
+ uint16_t s_ninode;
+ uint16_t s_inode[XENIX_NICINOD];
+ uint8_t s_flock;
+ uint8_t s_ilock;
+ uint8_t s_fmod;
+ uint8_t s_ronly;
+ uint32_t s_time;
+ uint32_t s_tfree;
+ uint16_t s_tinode;
+ uint16_t s_dinfo[4];
+ uint8_t s_fname[6];
+ uint8_t s_fpack[6];
+ uint8_t s_clean;
+ uint8_t s_fill[371];
+ uint32_t s_magic;
+ uint32_t s_type;
+} __attribute__((__packed__));
+
+#define SYSV_SUPERBLOCK_BLOCK 0x01
+#define SYSV_MAGIC 0xfd187e20
+#define XENIX_SUPERBLOCK_BLOCK 0x18
+#define XENIX_MAGIC 0x2b5544
+#define SYSV_MAX_BLOCKSIZE 0x800
+
+int volume_id_probe_sysv(struct volume_id *id, uint64_t off)
+{
+ struct sysv_super *vs;
+ struct xenix_super *xs;
+ unsigned boff;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ for (boff = 0x200; boff <= SYSV_MAX_BLOCKSIZE; boff <<= 1) {
+ vs = volume_id_get_buffer(id, off + (boff * SYSV_SUPERBLOCK_BLOCK), 0x200);
+ if (vs == NULL)
+ return -1;
+
+ if (vs->s_magic == cpu_to_le32(SYSV_MAGIC) || vs->s_magic == cpu_to_be32(SYSV_MAGIC)) {
+ volume_id_set_label_raw(id, vs->s_fname, 6);
+ volume_id_set_label_string(id, vs->s_fname, 6);
+ id->type = "sysv";
+ goto found;
+ }
+ }
+
+ for (boff = 0x200; boff <= SYSV_MAX_BLOCKSIZE; boff <<= 1) {
+ xs = volume_id_get_buffer(id, off + (boff + XENIX_SUPERBLOCK_BLOCK), 0x200);
+ if (xs == NULL)
+ return -1;
+
+ if (xs->s_magic == cpu_to_le32(XENIX_MAGIC) || xs->s_magic == cpu_to_be32(XENIX_MAGIC)) {
+ volume_id_set_label_raw(id, xs->s_fname, 6);
+ volume_id_set_label_string(id, xs->s_fname, 6);
+ id->type = "xenix";
+ goto found;
+ }
+ }
+
+ return -1;
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct volume_descriptor {
+ struct descriptor_tag {
+ uint16_t id;
+ uint16_t version;
+ uint8_t checksum;
+ uint8_t reserved;
+ uint16_t serial;
+ uint16_t crc;
+ uint16_t crc_len;
+ uint32_t location;
+ } __attribute__((__packed__)) tag;
+ union {
+ struct anchor_descriptor {
+ uint32_t length;
+ uint32_t location;
+ } __attribute__((__packed__)) anchor;
+ struct primary_descriptor {
+ uint32_t seq_num;
+ uint32_t desc_num;
+ struct dstring {
+ uint8_t clen;
+ uint8_t c[31];
+ } __attribute__((__packed__)) ident;
+ } __attribute__((__packed__)) primary;
+ } __attribute__((__packed__)) type;
+} __attribute__((__packed__));
+
+struct volume_structure_descriptor {
+ uint8_t type;
+ uint8_t id[5];
+ uint8_t version;
+} __attribute__((__packed__));
+
+#define UDF_VSD_OFFSET 0x8000
+
+int volume_id_probe_udf(struct volume_id *id, uint64_t off)
+{
+ struct volume_descriptor *vd;
+ struct volume_structure_descriptor *vsd;
+ unsigned bs;
+ unsigned b;
+ unsigned type;
+ unsigned count;
+ unsigned loc;
+ unsigned clen;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ vsd = volume_id_get_buffer(id, off + UDF_VSD_OFFSET, 0x200);
+ if (vsd == NULL)
+ return -1;
+
+ if (memcmp(vsd->id, "NSR02", 5) == 0)
+ goto blocksize;
+ if (memcmp(vsd->id, "NSR03", 5) == 0)
+ goto blocksize;
+ if (memcmp(vsd->id, "BEA01", 5) == 0)
+ goto blocksize;
+ if (memcmp(vsd->id, "BOOT2", 5) == 0)
+ goto blocksize;
+ if (memcmp(vsd->id, "CD001", 5) == 0)
+ goto blocksize;
+ if (memcmp(vsd->id, "CDW02", 5) == 0)
+ goto blocksize;
+ if (memcmp(vsd->id, "TEA03", 5) == 0)
+ goto blocksize;
+ return -1;
+
+blocksize:
+ /* search the next VSD to get the logical block size of the volume */
+ for (bs = 0x800; bs < 0x8000; bs += 0x800) {
+ vsd = volume_id_get_buffer(id, off + UDF_VSD_OFFSET + bs, 0x800);
+ if (vsd == NULL)
+ return -1;
+ dbg("test for blocksize: 0x%x", bs);
+ if (vsd->id[0] != '\0')
+ goto nsr;
+ }
+ return -1;
+
+nsr:
+ /* search the list of VSDs for a NSR descriptor */
+ for (b = 0; b < 64; b++) {
+ vsd = volume_id_get_buffer(id, off + UDF_VSD_OFFSET + (b * bs), 0x800);
+ if (vsd == NULL)
+ return -1;
+
+ dbg("vsd: %c%c%c%c%c",
+ vsd->id[0], vsd->id[1], vsd->id[2], vsd->id[3], vsd->id[4]);
+
+ if (vsd->id[0] == '\0')
+ return -1;
+ if (memcmp(vsd->id, "NSR02", 5) == 0)
+ goto anchor;
+ if (memcmp(vsd->id, "NSR03", 5) == 0)
+ goto anchor;
+ }
+ return -1;
+
+anchor:
+ /* read anchor volume descriptor */
+ vd = volume_id_get_buffer(id, off + (256 * bs), 0x200);
+ if (vd == NULL)
+ return -1;
+
+ type = le16_to_cpu(vd->tag.id);
+ if (type != 2) /* TAG_ID_AVDP */
+ goto found;
+
+ /* get desriptor list address and block count */
+ count = le32_to_cpu(vd->type.anchor.length) / bs;
+ loc = le32_to_cpu(vd->type.anchor.location);
+ dbg("0x%x descriptors starting at logical secor 0x%x", count, loc);
+
+ /* pick the primary descriptor from the list */
+ for (b = 0; b < count; b++) {
+ vd = volume_id_get_buffer(id, off + ((loc + b) * bs), 0x200);
+ if (vd == NULL)
+ return -1;
+
+ type = le16_to_cpu(vd->tag.id);
+ dbg("descriptor type %i", type);
+
+ /* check validity */
+ if (type == 0)
+ goto found;
+ if (le32_to_cpu(vd->tag.location) != loc + b)
+ goto found;
+
+ if (type == 1) /* TAG_ID_PVD */
+ goto pvd;
+ }
+ goto found;
+
+ pvd:
+ volume_id_set_label_raw(id, &(vd->type.primary.ident.clen), 32);
+
+ clen = vd->type.primary.ident.clen;
+ dbg("label string charsize=%i bit", clen);
+ if (clen == 8)
+ volume_id_set_label_string(id, vd->type.primary.ident.c, 31);
+ else if (clen == 16)
+ volume_id_set_label_unicode16(id, vd->type.primary.ident.c, BE, 31);
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "udf";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct ufs_super_block {
+ uint32_t fs_link;
+ uint32_t fs_rlink;
+ uint32_t fs_sblkno;
+ uint32_t fs_cblkno;
+ uint32_t fs_iblkno;
+ uint32_t fs_dblkno;
+ uint32_t fs_cgoffset;
+ uint32_t fs_cgmask;
+ uint32_t fs_time;
+ uint32_t fs_size;
+ uint32_t fs_dsize;
+ uint32_t fs_ncg;
+ uint32_t fs_bsize;
+ uint32_t fs_fsize;
+ uint32_t fs_frag;
+ uint32_t fs_minfree;
+ uint32_t fs_rotdelay;
+ uint32_t fs_rps;
+ uint32_t fs_bmask;
+ uint32_t fs_fmask;
+ uint32_t fs_bshift;
+ uint32_t fs_fshift;
+ uint32_t fs_maxcontig;
+ uint32_t fs_maxbpg;
+ uint32_t fs_fragshift;
+ uint32_t fs_fsbtodb;
+ uint32_t fs_sbsize;
+ uint32_t fs_csmask;
+ uint32_t fs_csshift;
+ uint32_t fs_nindir;
+ uint32_t fs_inopb;
+ uint32_t fs_nspf;
+ uint32_t fs_optim;
+ uint32_t fs_npsect_state;
+ uint32_t fs_interleave;
+ uint32_t fs_trackskew;
+ uint32_t fs_id[2];
+ uint32_t fs_csaddr;
+ uint32_t fs_cssize;
+ uint32_t fs_cgsize;
+ uint32_t fs_ntrak;
+ uint32_t fs_nsect;
+ uint32_t fs_spc;
+ uint32_t fs_ncyl;
+ uint32_t fs_cpg;
+ uint32_t fs_ipg;
+ uint32_t fs_fpg;
+ struct ufs_csum {
+ uint32_t cs_ndir;
+ uint32_t cs_nbfree;
+ uint32_t cs_nifree;
+ uint32_t cs_nffree;
+ } __attribute__((__packed__)) fs_cstotal;
+ int8_t fs_fmod;
+ int8_t fs_clean;
+ int8_t fs_ronly;
+ int8_t fs_flags;
+ union {
+ struct {
+ int8_t fs_fsmnt[512];
+ uint32_t fs_cgrotor;
+ uint32_t fs_csp[31];
+ uint32_t fs_maxcluster;
+ uint32_t fs_cpc;
+ uint16_t fs_opostbl[16][8];
+ } __attribute__((__packed__)) fs_u1;
+ struct {
+ int8_t fs_fsmnt[468];
+ uint8_t fs_volname[32];
+ uint64_t fs_swuid;
+ int32_t fs_pad;
+ uint32_t fs_cgrotor;
+ uint32_t fs_ocsp[28];
+ uint32_t fs_contigdirs;
+ uint32_t fs_csp;
+ uint32_t fs_maxcluster;
+ uint32_t fs_active;
+ int32_t fs_old_cpc;
+ int32_t fs_maxbsize;
+ int64_t fs_sparecon64[17];
+ int64_t fs_sblockloc;
+ struct ufs2_csum_total {
+ uint64_t cs_ndir;
+ uint64_t cs_nbfree;
+ uint64_t cs_nifree;
+ uint64_t cs_nffree;
+ uint64_t cs_numclusters;
+ uint64_t cs_spare[3];
+ } __attribute__((__packed__)) fs_cstotal;
+ struct ufs_timeval {
+ int32_t tv_sec;
+ int32_t tv_usec;
+ } __attribute__((__packed__)) fs_time;
+ int64_t fs_size;
+ int64_t fs_dsize;
+ uint64_t fs_csaddr;
+ int64_t fs_pendingblocks;
+ int32_t fs_pendinginodes;
+ } __attribute__((__packed__)) fs_u2;
+ } fs_u11;
+ union {
+ struct {
+ int32_t fs_sparecon[53];
+ int32_t fs_reclaim;
+ int32_t fs_sparecon2[1];
+ int32_t fs_state;
+ uint32_t fs_qbmask[2];
+ uint32_t fs_qfmask[2];
+ } __attribute__((__packed__)) fs_sun;
+ struct {
+ int32_t fs_sparecon[53];
+ int32_t fs_reclaim;
+ int32_t fs_sparecon2[1];
+ uint32_t fs_npsect;
+ uint32_t fs_qbmask[2];
+ uint32_t fs_qfmask[2];
+ } __attribute__((__packed__)) fs_sunx86;
+ struct {
+ int32_t fs_sparecon[50];
+ int32_t fs_contigsumsize;
+ int32_t fs_maxsymlinklen;
+ int32_t fs_inodefmt;
+ uint32_t fs_maxfilesize[2];
+ uint32_t fs_qbmask[2];
+ uint32_t fs_qfmask[2];
+ int32_t fs_state;
+ } __attribute__((__packed__)) fs_44;
+ } fs_u2;
+ int32_t fs_postblformat;
+ int32_t fs_nrpos;
+ int32_t fs_postbloff;
+ int32_t fs_rotbloff;
+ uint32_t fs_magic;
+ uint8_t fs_space[1];
+} __attribute__((__packed__));
+
+#define UFS_MAGIC 0x00011954
+#define UFS2_MAGIC 0x19540119
+#define UFS_MAGIC_FEA 0x00195612
+#define UFS_MAGIC_LFN 0x00095014
+
+int volume_id_probe_ufs(struct volume_id *id, uint64_t off)
+{
+ static const short offsets[] = { 0, 8, 64, 256 };
+
+ uint32_t magic;
+ int i;
+ struct ufs_super_block *ufs;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ for (i = 0; i < ARRAY_SIZE(offsets); i++) {
+ ufs = volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
+ if (ufs == NULL)
+ return -1;
+
+ dbg("offset 0x%x", offsets[i] * 0x400);
+ magic = ufs->fs_magic;
+ if ((magic == cpu_to_be32(UFS_MAGIC))
+ || (magic == cpu_to_be32(UFS2_MAGIC))
+ || (magic == cpu_to_be32(UFS_MAGIC_FEA))
+ || (magic == cpu_to_be32(UFS_MAGIC_LFN))
+ ) {
+ dbg("magic 0x%08x(be)", magic);
+ goto found;
+ }
+ if ((magic == cpu_to_le32(UFS_MAGIC))
+ || (magic == cpu_to_le32(UFS2_MAGIC))
+ || (magic == cpu_to_le32(UFS_MAGIC_FEA))
+ || (magic == cpu_to_le32(UFS_MAGIC_LFN))
+ ) {
+ dbg("magic 0x%08x(le)", magic);
+ goto found;
+ }
+ }
+ return -1;
+
+ found:
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "ufs";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count)
+{
+ unsigned i, j;
+ uint16_t c;
+
+ j = 0;
+ for (i = 0; i + 2 <= count; i += 2) {
+ if (endianess == LE)
+ c = (buf[i+1] << 8) | buf[i];
+ else
+ c = (buf[i] << 8) | buf[i+1];
+ if (c == 0) {
+ str[j] = '\0';
+ break;
+ } else if (c < 0x80) {
+ if (j+1 >= len)
+ break;
+ str[j++] = (uint8_t) c;
+ } else if (c < 0x800) {
+ if (j+2 >= len)
+ break;
+ str[j++] = (uint8_t) (0xc0 | (c >> 6));
+ str[j++] = (uint8_t) (0x80 | (c & 0x3f));
+ } else {
+ if (j+3 >= len)
+ break;
+ str[j++] = (uint8_t) (0xe0 | (c >> 12));
+ str[j++] = (uint8_t) (0x80 | ((c >> 6) & 0x3f));
+ str[j++] = (uint8_t) (0x80 | (c & 0x3f));
+ }
+ }
+ str[j] = '\0';
+}
+
+static const char *usage_to_string(enum volume_id_usage usage_id)
+{
+ switch (usage_id) {
+ case VOLUME_ID_FILESYSTEM:
+ return "filesystem";
+ case VOLUME_ID_PARTITIONTABLE:
+ return "partitiontable";
+ case VOLUME_ID_OTHER:
+ return "other";
+ case VOLUME_ID_RAID:
+ return "raid";
+ case VOLUME_ID_DISKLABEL:
+ return "disklabel";
+ case VOLUME_ID_CRYPTO:
+ return "crypto";
+ case VOLUME_ID_UNPROBED:
+ return "unprobed";
+ case VOLUME_ID_UNUSED:
+ return "unused";
+ }
+ return NULL;
+}
+
+void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id)
+{
+ part->usage_id = usage_id;
+ part->usage = usage_to_string(usage_id);
+}
+
+void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id)
+{
+ id->usage_id = usage_id;
+ id->usage = usage_to_string(usage_id);
+}
+
+void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count)
+{
+ memcpy(id->label_raw, buf, count);
+ id->label_raw_len = count;
+}
+
+#ifdef NOT_NEEDED
+static size_t strnlen(const char *s, size_t maxlen)
+{
+ size_t i;
+ if (!maxlen) return 0;
+ if (!s) return 0;
+ for (i = 0; *s && i < maxlen; ++s) ++i;
+ return i;
+}
+#endif
+
+void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count)
+{
+ unsigned i;
+
+ memcpy(id->label, buf, count);
+
+ /* remove trailing whitespace */
+ i = strnlen(id->label, count);
+ while (i--) {
+ if (!isspace(id->label[i]))
+ break;
+ }
+ id->label[i+1] = '\0';
+}
+
+void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count)
+{
+ volume_id_set_unicode16(id->label, sizeof(id->label), buf, endianess, count);
+}
+
+void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format)
+{
+ unsigned i;
+ unsigned count = 0;
+
+ switch(format) {
+ case UUID_DOS:
+ count = 4;
+ break;
+ case UUID_NTFS:
+ case UUID_HFS:
+ count = 8;
+ break;
+ case UUID_DCE:
+ count = 16;
+ break;
+ case UUID_DCE_STRING:
+ count = 36;
+ break;
+ }
+ memcpy(id->uuid_raw, buf, count);
+ id->uuid_raw_len = count;
+
+ /* if set, create string in the same format, the native platform uses */
+ for (i = 0; i < count; i++)
+ if (buf[i] != 0)
+ goto set;
+ return;
+
+set:
+ switch(format) {
+ case UUID_DOS:
+ sprintf(id->uuid, "%02X%02X-%02X%02X",
+ buf[3], buf[2], buf[1], buf[0]);
+ break;
+ case UUID_NTFS:
+ sprintf(id->uuid,"%02X%02X%02X%02X%02X%02X%02X%02X",
+ buf[7], buf[6], buf[5], buf[4],
+ buf[3], buf[2], buf[1], buf[0]);
+ break;
+ case UUID_HFS:
+ sprintf(id->uuid,"%02X%02X%02X%02X%02X%02X%02X%02X",
+ buf[0], buf[1], buf[2], buf[3],
+ buf[4], buf[5], buf[6], buf[7]);
+ break;
+ case UUID_DCE:
+ sprintf(id->uuid,
+ "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ buf[0], buf[1], buf[2], buf[3],
+ buf[4], buf[5],
+ buf[6], buf[7],
+ buf[8], buf[9],
+ buf[10], buf[11], buf[12], buf[13], buf[14],buf[15]);
+ break;
+ case UUID_DCE_STRING:
+ memcpy(id->uuid, buf, count);
+ id->uuid[count] = '\0';
+ break;
+ }
+}
+
+void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len)
+{
+ ssize_t buf_len;
+
+ dbg("get buffer off 0x%llx(%llu), len 0x%zx", (unsigned long long) off, (unsigned long long) off, len);
+ /* check if requested area fits in superblock buffer */
+ if (off + len <= SB_BUFFER_SIZE) {
+ if (id->sbbuf == NULL) {
+ id->sbbuf = xmalloc(SB_BUFFER_SIZE);
+ }
+
+ /* check if we need to read */
+ if ((off + len) > id->sbbuf_len) {
+ dbg("read sbbuf len:0x%llx", (unsigned long long) (off + len));
+ xlseek(id->fd, 0, SEEK_SET);
+ buf_len = full_read(id->fd, id->sbbuf, off + len);
+ if (buf_len < 0) {
+ dbg("read failed (%s)", strerror(errno));
+ return NULL;
+ }
+ dbg("got 0x%zx (%zi) bytes", buf_len, buf_len);
+ id->sbbuf_len = buf_len;
+ if (buf_len < off + len) {
+ dbg("requested 0x%zx bytes, got only 0x%zx bytes", len, buf_len);
+ return NULL;
+ }
+ }
+
+ return &(id->sbbuf[off]);
+ }
+
+ if (len > SEEK_BUFFER_SIZE) {
+ dbg("seek buffer too small %d", SEEK_BUFFER_SIZE);
+ return NULL;
+ }
+
+ /* get seek buffer */
+ if (id->seekbuf == NULL) {
+ id->seekbuf = xmalloc(SEEK_BUFFER_SIZE);
+ }
+
+ /* check if we need to read */
+ if ((off < id->seekbuf_off) || ((off + len) > (id->seekbuf_off + id->seekbuf_len))) {
+ dbg("read seekbuf off:0x%llx len:0x%zx", (unsigned long long) off, len);
+ xlseek(id->fd, off, SEEK_SET);
+ buf_len = full_read(id->fd, id->seekbuf, len);
+ if (buf_len < 0) {
+ dbg("read failed (%s)", strerror(errno));
+ return NULL;
+ }
+ dbg("got 0x%zx (%zi) bytes", buf_len, buf_len);
+ id->seekbuf_off = off;
+ id->seekbuf_len = buf_len;
+ if (buf_len < len) {
+ dbg("requested 0x%zx bytes, got only 0x%zx bytes", len, buf_len);
+ return NULL;
+ }
+ }
+
+ return &(id->seekbuf[off - id->seekbuf_off]);
+}
+
+void volume_id_free_buffer(struct volume_id *id)
+{
+ free(id->sbbuf);
+ id->sbbuf = NULL;
+ id->sbbuf_len = 0;
+ free(id->seekbuf);
+ id->seekbuf = NULL;
+ id->seekbuf_len = 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct via_meta {
+ uint16_t signature;
+ uint8_t version_number;
+ struct via_array {
+ uint16_t disk_bits;
+ uint8_t disk_array_ex;
+ uint32_t capacity_low;
+ uint32_t capacity_high;
+ uint32_t serial_checksum;
+ } __attribute((packed)) array;
+ uint32_t serial_checksum[8];
+ uint8_t checksum;
+} __attribute__((packed));
+
+#define VIA_SIGNATURE 0xAA55
+
+int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ uint64_t meta_off;
+ struct via_meta *via;
+
+ dbg("probing at offset 0x%llx, size 0x%llx",
+ (unsigned long long) off, (unsigned long long) size);
+
+ if (size < 0x10000)
+ return -1;
+
+ meta_off = ((size / 0x200)-1) * 0x200;
+
+ via = volume_id_get_buffer(id, off + meta_off, 0x200);
+ if (via == NULL)
+ return -1;
+
+ if (via->signature != cpu_to_le16(VIA_SIGNATURE))
+ return -1;
+
+ if (via->version_number > 1)
+ return -1;
+
+ volume_id_set_usage(id, VOLUME_ID_RAID);
+ id->type_version[0] = '0' + via->version_number;
+ id->type_version[1] = '\0';
+ id->type = "via_raid_member";
+
+ return 0;
+}
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+typedef int (*raid_probe_fptr)(struct volume_id *id, uint64_t off, uint64_t size);
+typedef int (*probe_fptr)(struct volume_id *id, uint64_t off);
+
+static const raid_probe_fptr raid1[] = {
+#if ENABLE_FEATURE_VOLUMEID_LINUXRAID
+ volume_id_probe_linux_raid,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_ISWRAID
+ volume_id_probe_intel_software_raid,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_LSIRAID
+ volume_id_probe_lsi_mega_raid,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_VIARAID
+ volume_id_probe_via_raid,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_SILICONRAID
+ volume_id_probe_silicon_medley_raid,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_NVIDIARAID
+ volume_id_probe_nvidia_raid,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_PROMISERAID
+ volume_id_probe_promise_fasttrack_raid,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_HIGHPOINTRAID
+ volume_id_probe_highpoint_45x_raid,
+#endif
+};
+
+static const probe_fptr raid2[] = {
+#if ENABLE_FEATURE_VOLUMEID_LVM
+ volume_id_probe_lvm1,
+ volume_id_probe_lvm2,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_HIGHPOINTRAID
+ volume_id_probe_highpoint_37x_raid,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_LUKS
+ volume_id_probe_luks,
+#endif
+};
+
+/* signature in the first block, only small buffer needed */
+static const probe_fptr fs1[] = {
+#if ENABLE_FEATURE_VOLUMEID_FAT
+ volume_id_probe_vfat,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_MAC
+ volume_id_probe_mac_partition_map,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_XFS
+ volume_id_probe_xfs,
+#endif
+};
+
+/* fill buffer with maximum */
+static const probe_fptr fs2[] = {
+#if ENABLE_FEATURE_VOLUMEID_LINUXSWAP
+ volume_id_probe_linux_swap,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_EXT
+ volume_id_probe_ext,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_REISERFS
+ volume_id_probe_reiserfs,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_JFS
+ volume_id_probe_jfs,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_UDF
+ volume_id_probe_udf,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_ISO9660
+ volume_id_probe_iso9660,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_HFS
+ volume_id_probe_hfs_hfsplus,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_UFS
+ volume_id_probe_ufs,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_NTFS
+ volume_id_probe_ntfs,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_CRAMFS
+ volume_id_probe_cramfs,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_ROMFS
+ volume_id_probe_romfs,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_HPFS
+ volume_id_probe_hpfs,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_SYSV
+ volume_id_probe_sysv,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_MINIX
+ volume_id_probe_minix,
+#endif
+#if ENABLE_FEATURE_VOLUMEID_OCFS2
+ volume_id_probe_ocfs2,
+#endif
+};
+
+int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size)
+{
+ int i;
+
+ if (id == NULL)
+ return -EINVAL;
+
+ /* probe for raid first, cause fs probes may be successful on raid members */
+ if (size) {
+ for (i = 0; i < ARRAY_SIZE(raid1); i++)
+ if (raid1[i](id, off, size) == 0)
+ goto ret;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(raid2); i++)
+ if (raid2[i](id, off) == 0)
+ goto ret;
+
+ /* signature in the first block, only small buffer needed */
+ for (i = 0; i < ARRAY_SIZE(fs1); i++)
+ if (fs1[i](id, off) == 0)
+ goto ret;
+
+ /* fill buffer with maximum */
+ volume_id_get_buffer(id, 0, SB_BUFFER_SIZE);
+
+ for (i = 0; i < ARRAY_SIZE(fs2); i++)
+ if (fs2[i](id, off) == 0)
+ goto ret;
+ return -1;
+
+ ret:
+ /* If the filestystem in recognized, we free the allocated buffers,
+ otherwise they will stay in place for the possible next probe call */
+ volume_id_free_buffer(id);
+
+ return 0;
+}
+
+/* open volume by device node */
+struct volume_id *volume_id_open_node(const char *path)
+{
+ struct volume_id *id;
+ int fd;
+
+ fd = xopen(path, O_RDONLY);
+ id = xzalloc(sizeof(struct volume_id));
+ id->fd = fd;
+ ///* close fd on device close */
+ //id->fd_close = 1;
+
+ return id;
+}
+
+#ifdef UNUSED
+/* open volume by major/minor */
+struct volume_id *volume_id_open_dev_t(dev_t devt)
+{
+ struct volume_id *id;
+ char *tmp_node[VOLUME_ID_PATH_MAX];
+
+ tmp_node = xasprintf("/dev/.volume_id-%u-%u-%u",
+ (unsigned)getpid(), (unsigned)major(devt), (unsigned)minor(devt));
+
+ /* create temporary node to open block device */
+ unlink(tmp_node);
+ if (mknod(tmp_node, (S_IFBLK | 0600), devt) != 0)
+ bb_perror_msg_and_die("cannot mknod(%s)", tmp_node);
+
+ id = volume_id_open_node(tmp_node);
+ unlink(tmp_node);
+ free(tmp_node);
+ return id;
+}
+#endif
+
+void free_volume_id(struct volume_id *id)
+{
+ if (id == NULL)
+ return;
+
+ //if (id->fd_close != 0) - always true
+ close(id->fd);
+ volume_id_free_buffer(id);
+ free(id->partitions);
+ free(id);
+}
--- /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
+ */
+
+#include "libbb.h"
+#include "volume_id.h"
+
+
+#define dbg(...) ((void)0)
+
+
+/* volume_id.h */
+
+#define VOLUME_ID_VERSION 48
+
+#define VOLUME_ID_LABEL_SIZE 64
+#define VOLUME_ID_UUID_SIZE 36
+#define VOLUME_ID_FORMAT_SIZE 32
+#define VOLUME_ID_PARTITIONS_MAX 256
+
+enum volume_id_usage {
+ VOLUME_ID_UNUSED,
+ VOLUME_ID_UNPROBED,
+ VOLUME_ID_OTHER,
+ VOLUME_ID_FILESYSTEM,
+ VOLUME_ID_PARTITIONTABLE,
+ VOLUME_ID_RAID,
+ VOLUME_ID_DISKLABEL,
+ VOLUME_ID_CRYPTO,
+};
+
+struct volume_id_partition {
+ enum volume_id_usage usage_id;
+ const char *usage;
+ const char *type;
+ uint64_t off;
+ uint64_t len;
+ uint8_t partition_type_raw;
+};
+
+struct volume_id {
+ uint8_t label_raw[VOLUME_ID_LABEL_SIZE];
+ size_t label_raw_len;
+ char label[VOLUME_ID_LABEL_SIZE+1];
+ uint8_t uuid_raw[VOLUME_ID_UUID_SIZE];
+ size_t uuid_raw_len;
+ char uuid[VOLUME_ID_UUID_SIZE+1];
+ enum volume_id_usage usage_id;
+ const char *usage;
+ const char *type;
+ char type_version[VOLUME_ID_FORMAT_SIZE];
+
+ struct volume_id_partition *partitions;
+ size_t partition_count;
+
+ int fd;
+ uint8_t *sbbuf;
+ uint8_t *seekbuf;
+ size_t sbbuf_len;
+ uint64_t seekbuf_off;
+ size_t seekbuf_len;
+// int fd_close:1;
+};
+
+struct volume_id *volume_id_open_node(const char *path);
+int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size);
+void free_volume_id(struct volume_id *id);
+
+/* util.h */
+
+/* size of superblock buffer, reiserfs block is at 64k */
+#define SB_BUFFER_SIZE 0x11000
+/* size of seek buffer, FAT cluster is 32k max */
+#define SEEK_BUFFER_SIZE 0x10000
+
+#define bswap16(x) (uint16_t) ( \
+ (((uint16_t)(x) & 0x00ffu) << 8) | \
+ (((uint16_t)(x) & 0xff00u) >> 8))
+
+#define bswap32(x) (uint32_t) ( \
+ (((uint32_t)(x) & 0xff000000u) >> 24) | \
+ (((uint32_t)(x) & 0x00ff0000u) >> 8) | \
+ (((uint32_t)(x) & 0x0000ff00u) << 8) | \
+ (((uint32_t)(x) & 0x000000ffu) << 24))
+
+#define bswap64(x) (uint64_t) ( \
+ (((uint64_t)(x) & 0xff00000000000000ull) >> 56) | \
+ (((uint64_t)(x) & 0x00ff000000000000ull) >> 40) | \
+ (((uint64_t)(x) & 0x0000ff0000000000ull) >> 24) | \
+ (((uint64_t)(x) & 0x000000ff00000000ull) >> 8) | \
+ (((uint64_t)(x) & 0x00000000ff000000ull) << 8) | \
+ (((uint64_t)(x) & 0x0000000000ff0000ull) << 24) | \
+ (((uint64_t)(x) & 0x000000000000ff00ull) << 40) | \
+ (((uint64_t)(x) & 0x00000000000000ffull) << 56))
+
+#if BB_LITTLE_ENDIAN
+#define le16_to_cpu(x) (x)
+#define le32_to_cpu(x) (x)
+#define le64_to_cpu(x) (x)
+#define be16_to_cpu(x) bswap16(x)
+#define be32_to_cpu(x) bswap32(x)
+#define cpu_to_le16(x) (x)
+#define cpu_to_le32(x) (x)
+#define cpu_to_be32(x) bswap32(x)
+#else
+#define le16_to_cpu(x) bswap16(x)
+#define le32_to_cpu(x) bswap32(x)
+#define le64_to_cpu(x) bswap64(x)
+#define be16_to_cpu(x) (x)
+#define be32_to_cpu(x) (x)
+#define cpu_to_le16(x) bswap16(x)
+#define cpu_to_le32(x) bswap32(x)
+#define cpu_to_be32(x) (x)
+#endif
+
+enum uuid_format {
+ UUID_DCE_STRING,
+ UUID_DCE,
+ UUID_DOS,
+ UUID_NTFS,
+ UUID_HFS,
+};
+
+enum endian {
+ LE = 0,
+ BE = 1
+};
+
+void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
+void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
+void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
+void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
+void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
+void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
+void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
+void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
+void volume_id_free_buffer(struct volume_id *id);
+
+
+/* Probe routines */
+
+/* RAID */
+
+int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off);
+int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size);
+
+int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size);
+
+int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size);
+
+int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size);
+
+int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size);
+
+int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size);
+
+int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size);
+
+int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size);
+
+int volume_id_probe_lvm1(struct volume_id *id, uint64_t off);
+int volume_id_probe_lvm2(struct volume_id *id, uint64_t off);
+
+/* FS */
+
+int volume_id_probe_cramfs(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_ext(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_vfat(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_hpfs(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_iso9660(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_jfs(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_luks(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_mac_partition_map(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_minix(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_msdos_part_table(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_ntfs(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_romfs(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_sysv(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_udf(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_ufs(struct volume_id *id, uint64_t off);
+
+int volume_id_probe_xfs(struct volume_id *id, uint64_t off);
--- /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
+ */
+
+#include "volume_id_internal.h"
+
+struct xfs_super_block {
+ uint8_t magic[4];
+ uint32_t blocksize;
+ uint64_t dblocks;
+ uint64_t rblocks;
+ uint32_t dummy1[2];
+ uint8_t uuid[16];
+ uint32_t dummy2[15];
+ uint8_t fname[12];
+ uint32_t dummy3[2];
+ uint64_t icount;
+ uint64_t ifree;
+ uint64_t fdblocks;
+} __attribute__((__packed__));
+
+int volume_id_probe_xfs(struct volume_id *id, uint64_t off)
+{
+ struct xfs_super_block *xs;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ xs = volume_id_get_buffer(id, off, 0x200);
+ if (xs == NULL)
+ return -1;
+
+ if (memcmp(xs->magic, "XFSB", 4) != 0)
+ return -1;
+
+ volume_id_set_label_raw(id, xs->fname, 12);
+ volume_id_set_label_string(id, xs->fname, 12);
+ volume_id_set_uuid(id, xs->uuid, UUID_DCE);
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "xfs";
+
+ return 0;
+}
projects / oweals / busybox.git / commitdiff