int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
const uint8_t *buf;
uint64_t meta_off;
struct isw_meta *isw;
info("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;
buf = volume_id_get_buffer(id, off + meta_off, 0x200);
if (buf == NULL)
return -1;
isw = (struct isw_meta *) buf;
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;
}
static int volume_id_probe_linux_raid1(struct volume_id *id, uint64_t off, uint64_t size)
{
const uint8_t *buf;
struct mdp1_super_block *mdp1;
info("probing at offset 0x%" PRIx64 ", size 0x%" PRIx64 "\n", off, size);
buf = volume_id_get_buffer(id, off, 0x800);
if (buf == NULL)
return -1;
mdp1 = (struct mdp1_super_block *) buf;
if (le32_to_cpu(mdp1->magic) != MD_SB_MAGIC)
return -1;
if (le32_to_cpu(mdp1->major_version) != 1)
return -1;
volume_id_set_uuid(id, mdp1->set_uuid, 0, UUID_MD);
volume_id_set_label_raw(id, mdp1->set_name, 32);
volume_id_set_label_string(id, mdp1->set_name, 32);
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "linux_raid_member";
return 0;
}
int volume_id_probe_lvm2(struct volume_id *id, uint64_t off, uint64_t size)
{
const uint8_t *buf;
unsigned int soff;
struct lvm2_super_block *lvm;
struct lvm2_pv_header *pvhdr;
dbg("probing at offset 0x%" PRIx64 "\n", 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:
dbg("found at offset 0x%x (pv hdr offset 0x%x)\n",
soff, cpu_to_le32(lvm->offset_xl));
soff += cpu_to_le32(lvm->offset_xl);
pvhdr = (struct lvm2_pv_header *) &buf[soff];
memcpy(id->type_version, lvm->type, 8);
volume_id_set_usage(id, VOLUME_ID_RAID);
volume_id_set_uuid(id, pvhdr->id, 0, UUID_LVM);
id->type = "LVM2_member";
return 0;
}
int volume_id_probe_squashfs(struct volume_id *id, uint64_t off, uint64_t size)
{
struct squashfs_super *sqs;
info("probing at offset 0x%" PRIx64 "\n", off);
sqs = (struct squashfs_super *) volume_id_get_buffer(id, off, 0x200);
if (sqs == NULL)
return -1;
if (sqs->s_magic == SQUASHFS_MAGIC || sqs->s_magic == SQUASHFS_MAGIC_LZMA) {
snprintf(id->type_version, sizeof(id->type_version), "%u.%u",
sqs->s_major, sqs->s_minor);
goto found;
}
if (sqs->s_magic == bswap_32(SQUASHFS_MAGIC) || sqs->s_magic == bswap_32(SQUASHFS_MAGIC_LZMA)) {
snprintf(id->type_version, sizeof(id->type_version), "%u.%u",
bswap_16(sqs->s_major), bswap_16(sqs->s_minor));
goto found;
}
return -1;
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "squashfs";
return 0;
}
int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
const uint8_t *buf;
struct hpt45x_meta *hpt;
uint64_t meta_off;
uint32_t magic;
dbg("probing at offset 0x%" PRIx64 ", size 0x%" PRIx64 "\n", off, size);
if (size < 0x10000)
return -1;
meta_off = ((size / 0x200)-11) * 0x200;
buf = volume_id_get_buffer(id, off + meta_off, 0x200);
if (buf == NULL)
return -1;
hpt = (struct hpt45x_meta *) buf;
magic = le32_to_cpu(hpt->magic);
if (magic != HPT45X_MAGIC_OK && magic != HPT45X_MAGIC_BAD)
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "highpoint_raid_member";
return 0;
}
static int volume_id_probe_linux_raid0(struct volume_id *id, uint64_t off, uint64_t size)
{
const uint8_t *buf;
struct mdp0_super_block *mdp0;
union {
uint32_t ints[4];
uint8_t bytes[16];
} uuid;
info("probing at offset 0x%" PRIx64 ", size 0x%" PRIx64 "\n", off, size);
if (size < 0x10000)
return -1;
buf = volume_id_get_buffer(id, off, 0x800);
if (buf == NULL)
return -1;
mdp0 = (struct mdp0_super_block *) buf;
if (le32_to_cpu(mdp0->md_magic) == MD_SB_MAGIC) {
uuid.ints[0] = bswap_32(mdp0->set_uuid0);
if (le32_to_cpu(mdp0->minor_version >= 90)) {
uuid.ints[1] = bswap_32(mdp0->set_uuid1);
uuid.ints[2] = bswap_32(mdp0->set_uuid2);
uuid.ints[3] = bswap_32(mdp0->set_uuid3);
} else {
uuid.ints[1] = 0;
uuid.ints[2] = 0;
uuid.ints[3] = 0;
}
volume_id_set_uuid(id, uuid.bytes, 0, UUID_MD);
snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u.%u",
le32_to_cpu(mdp0->major_version),
le32_to_cpu(mdp0->minor_version),
le32_to_cpu(mdp0->patch_version));
} else if (be32_to_cpu(mdp0->md_magic) == MD_SB_MAGIC) {
uuid.ints[0] = mdp0->set_uuid0;
if (be32_to_cpu(mdp0->minor_version >= 90)) {
uuid.ints[1] = mdp0->set_uuid1;
uuid.ints[2] = mdp0->set_uuid2;
uuid.ints[3] = mdp0->set_uuid3;
} else {
uuid.ints[1] = 0;
uuid.ints[2] = 0;
uuid.ints[3] = 0;
}
volume_id_set_uuid(id, uuid.bytes, 0, UUID_MD);
snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u.%u",
be32_to_cpu(mdp0->major_version),
be32_to_cpu(mdp0->minor_version),
be32_to_cpu(mdp0->patch_version));
} else
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "linux_raid_member";
return 0;
}
int volume_id_probe_ext(struct volume_id *id, uint64_t off, uint64_t size)
{
struct ext2_super_block *es;
size_t bsize;
info("probing at offset 0x%llx", (unsigned long long) off);
es = (struct ext2_super_block *) volume_id_get_buffer(id, off + EXT_SUPERBLOCK_OFFSET, 0x200);
if (es == NULL)
return -1;
if (es->s_magic != cpu_to_le16(EXT_SUPER_MAGIC))
return -1;
bsize = 0x400 << le32_to_cpu(es->s_log_block_size);
dbg("ext blocksize 0x%zx", bsize);
if (bsize < EXT3_MIN_BLOCK_SIZE || bsize > EXT3_MAX_BLOCK_SIZE) {
dbg("invalid ext blocksize");
return -1;
}
volume_id_set_label_raw(id, es->s_volume_name, 16);
volume_id_set_label_string(id, es->s_volume_name, 16);
volume_id_set_uuid(id, es->s_uuid, 0, UUID_DCE);
snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u",
le32_to_cpu(es->s_rev_level), le16_to_cpu(es->s_minor_rev_level));
/* check for external journal device */
if ((le32_to_cpu(es->s_feature_incompat) & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) != 0) {
volume_id_set_usage(id, VOLUME_ID_OTHER);
id->type = "jbd";
return 0;
}
/* check for ext2 / ext3 */
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
if ((le32_to_cpu(es->s_feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL) != 0)
id->type = "ext3";
else
id->type = "ext2";
return 0;
}
int volume_id_probe_ufs(struct volume_id *id, uint64_t off, uint64_t size)
{
uint32_t magic;
int i;
struct ufs_super_block *ufs;
int offsets[] = {0, 8, 64, 256, -1};
info("probing at offset 0x%" PRIx64 "\n", off);
for (i = 0; offsets[i] >= 0; i++) {
ufs = (struct ufs_super_block *) volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
if (ufs == NULL)
return -1;
dbg("offset 0x%x\n", offsets[i] * 0x400);
magic = be32_to_cpu(ufs->fs_magic);
if ((magic == UFS_MAGIC) ||
(magic == UFS2_MAGIC) ||
(magic == UFS_MAGIC_FEA) ||
(magic == UFS_MAGIC_LFN)) {
dbg("magic 0x%08x(be)\n", magic);
goto found;
}
magic = le32_to_cpu(ufs->fs_magic);
if ((magic == UFS_MAGIC) ||
(magic == UFS2_MAGIC) ||
(magic == UFS_MAGIC_FEA) ||
(magic == UFS_MAGIC_LFN)) {
dbg("magic 0x%08x(le)\n", magic);
goto found;
}
}
return -1;
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "ufs";
switch (magic) {
case UFS_MAGIC:
strcpy(id->type_version, "1");
break;
case UFS2_MAGIC:
strcpy(id->type_version, "2");
volume_id_set_label_raw(id, ufs->fs_u11.fs_u2.fs_volname, 32);
volume_id_set_label_string(id, ufs->fs_u11.fs_u2.fs_volname, 32);
break;
default:
break;
}
return 0;
}
int volume_id_probe_minix(struct volume_id *id, uint64_t off, uint64_t size)
{
uint8_t *buf;
struct minix_super_block *ms;
struct minix3_super_block *m3s;
info("probing at offset 0x%" PRIx64 "\n", off);
buf = volume_id_get_buffer(id, off + MINIX_SUPERBLOCK_OFFSET, 0x200);
if (buf == NULL)
return -1;
ms = (struct minix_super_block *) buf;
if (ms->s_magic == MINIX_SUPER_MAGIC ||
ms->s_magic == bswap_16(MINIX_SUPER_MAGIC)) {
strcpy(id->type_version, "1");
goto found;
}
if (ms->s_magic == MINIX_SUPER_MAGIC2 ||
ms->s_magic == bswap_16(MINIX_SUPER_MAGIC2)) {
strcpy(id->type_version, "1");
goto found;
}
if (ms->s_magic == MINIX2_SUPER_MAGIC ||
ms->s_magic == bswap_16(MINIX2_SUPER_MAGIC)) {
strcpy(id->type_version, "2");
goto found;
}
if (ms->s_magic == MINIX2_SUPER_MAGIC2 ||
ms->s_magic == bswap_16(MINIX2_SUPER_MAGIC2)) {
strcpy(id->type_version, "2");
goto found;
}
m3s = (struct minix3_super_block *) buf;
if (m3s->s_magic == MINIX3_SUPER_MAGIC ||
m3s->s_magic == bswap_16(MINIX3_SUPER_MAGIC)) {
strcpy(id->type_version, "3");
goto found;
}
goto exit;
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "minix";
return 0;
exit:
return -1;
}
int volume_id_probe_luks(struct volume_id *id, uint64_t off, uint64_t size)
{
struct luks_phdr *header;
header = (struct luks_phdr*) 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, 36, UUID_HEX_STRING);
id->type = "crypto_LUKS";
return 0;
}
int volume_id_probe_sysv(struct volume_id *id, uint64_t off, uint64_t size)
{
struct sysv_super *vs;
struct xenix_super *xs;
unsigned int boff;
info("probing at offset 0x%llx", (unsigned long long) off);
for (boff = 0x200; boff <= SYSV_MAX_BLOCKSIZE; boff <<= 1) {
vs = (struct sysv_super *)
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 = (struct xenix_super *)
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;
}
int volume_id_probe_hpfs(struct volume_id *id, uint64_t off, uint64_t size)
{
struct hpfs_super *hs;
info("probing at offset 0x%llx", (unsigned long long) off);
hs = (struct hpfs_super *) 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;
}
int volume_id_probe_btrfs(struct volume_id *id, uint64_t off, uint64_t size)
{
const uint8_t *buf;
struct btrfs_super_block *bfs;
info("probing at offset 0x%" PRIx64 ", size 0x%" PRIx64 "\n", off, size);
buf = volume_id_get_buffer(id, off + 0x10000, 0x200);
if (buf == NULL)
return -1;
bfs = (struct btrfs_super_block *)buf;
if (memcmp(bfs->magic, "_BHRfS_M", 8) != 0)
return -1;
volume_id_set_uuid(id, bfs->fsid, 0, UUID_DCE);
volume_id_set_uuid_sub(id, bfs->dev_item.uuid, 0, UUID_DCE);
volume_id_set_label_raw(id, bfs->label, 256);
volume_id_set_label_string(id, bfs->label, 256);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "btrfs";
return 0;
}
int volume_id_probe_lvm1(struct volume_id *id, uint64_t off, uint64_t size)
{
const uint8_t *buf;
struct lvm1_super_block *lvm;
info("probing at offset 0x%" PRIx64 "\n", 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;
}
int volume_id_probe_minix(struct volume_id *id, uint64_t off, uint64_t size)
{
struct minix_super_block *ms;
info("probing at offset 0x%llx", (unsigned long long) off);
ms = (struct minix_super_block *) volume_id_get_buffer(id, off + MINIX_SUPERBLOCK_OFFSET, 0x200);
if (ms == NULL)
return -1;
if (le16_to_cpu(ms->s_magic) == 0x137f) {
strcpy(id->type_version, "1");
goto found;
}
if (le16_to_cpu(ms->s_magic) == 0x1387) {
strcpy(id->type_version, "1");
goto found;
}
if (le16_to_cpu(ms->s_magic) == 0x2468) {
strcpy(id->type_version, "2");
goto found;
}
if (le16_to_cpu(ms->s_magic) == 0x2478) {
strcpy(id->type_version, "2");
goto found;
}
goto exit;
found:
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "minix";
return 0;
exit:
return -1;
}
int volume_id_probe_hpfs(struct volume_id *id, uint64_t off, uint64_t size)
{
struct hpfs_super *hs;
struct hpfs_spare_super *hss;
struct hpfs_boot_block *hbb;
uint8_t version;
info("probing at offset 0x%" PRIx64 "\n", off);
hs = (struct hpfs_super *) volume_id_get_buffer(id, off + HPFS_SUPERBLOCK_OFFSET, 0x400);
if (hs == NULL)
return -1;
if (memcmp(hs->magic, "\x49\xe8\x95\xf9", 4) != 0)
return -1;
hss = (struct hpfs_spare_super *) volume_id_get_buffer(id, off + HPFS_SUPERBLOCK_SPARE_OFFSET, 0x200);
if (hss == NULL)
return -1;
if (memcmp(hss->magic, "\x49\x18\x91\xf9", 4) != 0)
return -1;
version = hs->version;
/* if boot block looks valid, read label and uuid from there */
hbb = (struct hpfs_boot_block *) volume_id_get_buffer(id, off, 0x200);
if (hbb == NULL)
return -1;
if (memcmp(hbb->magic, "\x55\xaa", 2) == 0 &&
memcmp(hbb->sig_hpfs, "HPFS", 4) == 0 &&
hbb->sig_28h == 0x28) {
volume_id_set_label_raw(id, hbb->vol_label, 11);
volume_id_set_label_string(id, hbb->vol_label, 11);
volume_id_set_uuid(id, hbb->vol_serno, 0, UUID_DOS);
}
sprintf(id->type_version, "%u", version);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "hpfs";
return 0;
}
int volume_id_probe_jfs(struct volume_id *id, uint64_t off, uint64_t size)
{
struct jfs_super_block *js;
info("probing at offset 0x%" PRIx64 "\n", off);
js = (struct jfs_super_block *) 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, 0, UUID_DCE);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "jfs";
return 0;
}
int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
const uint8_t *buf;
struct hpt37x_meta *hpt;
uint32_t magic;
info("probing at offset 0x%" PRIx64 "\n", off);
buf = volume_id_get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
if (buf == NULL)
return -1;
hpt = (struct hpt37x_meta *) buf;
magic = le32_to_cpu(hpt->magic);
if (magic != HPT37X_MAGIC_OK && magic != HPT37X_MAGIC_BAD)
return -1;
volume_id_set_usage(id, VOLUME_ID_RAID);
id->type = "highpoint_raid_member";
return 0;
}
int volume_id_probe_netware(struct volume_id *id, uint64_t off, uint64_t size)
{
struct netware_super_block *nw;
info("probing at offset 0x%" PRIx64 "\n", off);
nw = (struct netware_super_block *) volume_id_get_buffer(id, off + NW_SUPERBLOCK_OFFSET, 0x200);
if (nw == NULL)
return -1;
if (memcmp(nw->SBH_Signature, "SPB5", 4) != 0)
return -1;
volume_id_set_uuid(id, nw->SBH_PoolID, 0, UUID_DCE);
snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%02u",
le16_to_cpu(nw->SBH_VersionMediaMajor), le16_to_cpu(nw->SBH_VersionMediaMinor));
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "nss";
return 0;
}
int volume_id_probe_ntfs(struct volume_id *id, uint64_t off, uint64_t size)
{
unsigned int sector_size;
unsigned int cluster_size;
uint64_t mft_cluster;
uint64_t mft_off;
unsigned int mft_record_size;
unsigned int attr_type;
unsigned int attr_off;
unsigned int attr_len;
unsigned int val_off;
unsigned int val_len;
const uint8_t *buf;
const uint8_t *val;
info("probing at offset 0x%" PRIx64 "\n", off);
ns = (struct ntfs_super_block *) 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, 0, UUID_64BIT_LE);
sector_size = le16_to_cpu(ns->bytes_per_sector);
if (sector_size < 0x200)
return -1;
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\n", sector_size);
dbg("clustersize 0x%x\n", cluster_size);
dbg("mftcluster %" PRIu64 "\n", mft_cluster);
dbg("mftoffset 0x%" PRIx64 "\n", mft_off);
dbg("cluster per mft_record %i\n", ns->cluster_per_mft_record);
dbg("mft record size %i\n", mft_record_size);
buf = volume_id_get_buffer(id, off + mft_off + (MFT_RECORD_VOLUME * mft_record_size),
mft_record_size);
if (buf == NULL)
return -1;
mftr = (struct master_file_table_record*) buf;
dbg("mftr->magic '%c%c%c%c'\n", mftr->magic[0], mftr->magic[1], mftr->magic[2], mftr->magic[3]);
if (memcmp(mftr->magic, "FILE", 4) != 0)
return -1;
attr_off = le16_to_cpu(mftr->attrs_offset);
dbg("file $Volume's attributes are at offset %i\n", attr_off);
while (1) {
attr = (struct file_attribute*) &buf[attr_off];
attr_type = le32_to_cpu(attr->type);
attr_len = le16_to_cpu(attr->len);
val_off = le16_to_cpu(attr->value_offset);
val_len = le32_to_cpu(attr->value_len);
attr_off += attr_len;
if (attr_len == 0)
break;
if (attr_off >= mft_record_size)
break;
if (attr_type == MFT_RECORD_ATTR_END)
break;
dbg("found attribute type 0x%x, len %i, at offset %i\n",
attr_type, attr_len, attr_off);
if (attr_type == MFT_RECORD_ATTR_VOLUME_INFO) {
dbg("found info, len %i\n", 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\n", 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);
}
}
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "ntfs";
/* we think this is ntfs, but we make sure no other signatures are found */
id->force_unique_result = 1;
return 0;
}
int volume_id_probe_iso9660(struct volume_id *id, uint64_t off, uint64_t size)
{
uint8_t *buf;
struct iso_volume_descriptor *is;
struct high_sierra_volume_descriptor *hs;
info("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->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 = (struct iso_volume_descriptor *) volume_id_get_buffer(id, off + vd_offset, 0x200);
if (is == NULL || is->type == ISO_VD_END)
break;
if (is->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;
}