diff options
Diffstat (limited to 'libblkid/udf.c')
| -rw-r--r-- | libblkid/udf.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/libblkid/udf.c b/libblkid/udf.c deleted file mode 100644 index 2cb471df2..000000000 --- a/libblkid/udf.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * Copyright (C) 1999 by Andries Brouwer - * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o - * Copyright (C) 2001 by Andreas Dilger - * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org> - * Copyright (C) 2008 Karel Zak <kzak@redhat.com> - * - * This file may be redistributed under the terms of the - * GNU Lesser General Public License. - */ -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <errno.h> -#include <ctype.h> -#include <stdint.h> - -#include "superblocks.h" -#include "iso9660.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 0x8000LL - -static int probe_udf(blkid_probe pr, - const struct blkid_idmag *mag __attribute__((__unused__))) -{ - struct volume_descriptor *vd; - struct volume_structure_descriptor *vsd; - unsigned int bs; - unsigned int b; - unsigned int type; - unsigned int count; - unsigned int loc; - - /* search Volume Sequence Descriptor (VSD) to get the logical - * block size of the volume */ - for (bs = 0x800; bs < 0x8000; bs += 0x800) { - vsd = (struct volume_structure_descriptor *) - blkid_probe_get_buffer(pr, - UDF_VSD_OFFSET + bs, - sizeof(*vsd)); - if (!vsd) - return 1; - if (vsd->id[0] != '\0') - goto nsr; - } - return -1; - -nsr: - /* search the list of VSDs for a NSR descriptor */ - for (b = 0; b < 64; b++) { - vsd = (struct volume_structure_descriptor *) - blkid_probe_get_buffer(pr, - UDF_VSD_OFFSET + ((blkid_loff_t) b * bs), - sizeof(*vsd)); - if (!vsd) - return -1; - 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 (AVDP) */ - vd = (struct volume_descriptor *) - blkid_probe_get_buffer(pr, 256 * bs, sizeof(*vd)); - if (!vd) - return -1; - - type = le16_to_cpu(vd->tag.id); - if (type != 2) /* TAG_ID_AVDP */ - return 0; - - /* get desriptor list address and block count */ - count = le32_to_cpu(vd->type.anchor.length) / bs; - loc = le32_to_cpu(vd->type.anchor.location); - - /* check if the list is usable */ - for (b = 0; b < count; b++) { - vd = (struct volume_descriptor *) - blkid_probe_get_buffer(pr, - (blkid_loff_t) (loc + b) * bs, - sizeof(*vd)); - if (!vd) - return -1; - } - - /* Try extract all possible ISO9660 information -- if there is - * usable LABEL in ISO header then use it, otherwise read UDF - * specific LABEL */ - if (probe_iso9660(pr, mag) == 0 && - __blkid_probe_lookup_value(pr, "LABEL") != NULL) - return 0; - - /* Read UDF label */ - for (b = 0; b < count; b++) { - vd = (struct volume_descriptor *) - blkid_probe_get_buffer(pr, - (blkid_loff_t) (loc + b) * bs, - sizeof(*vd)); - - type = le16_to_cpu(vd->tag.id); - if (type == 0) - break; - if (le32_to_cpu(vd->tag.location) != loc + b) - break; - if (type == 1) { /* TAG_ID_PVD */ - uint8_t clen = vd->type.primary.ident.clen; - - if (clen == 8) - blkid_probe_set_label(pr, - vd->type.primary.ident.c, 31); - else if (clen == 16) - blkid_probe_set_utf8label(pr, - vd->type.primary.ident.c, - 31, BLKID_ENC_UTF16BE); - - if (clen == 8 || clen == 16) - break; - } - } - - return 0; -} - - -const struct blkid_idinfo udf_idinfo = -{ - .name = "udf", - .usage = BLKID_USAGE_FILESYSTEM, - .probefunc = probe_udf, - .flags = BLKID_IDINFO_TOLERANT, - .magics = - { - { .magic = "BEA01", .len = 5, .kboff = 32, .sboff = 1 }, - { .magic = "BOOT2", .len = 5, .kboff = 32, .sboff = 1 }, - { .magic = "CD001", .len = 5, .kboff = 32, .sboff = 1 }, - { .magic = "CDW02", .len = 5, .kboff = 32, .sboff = 1 }, - { .magic = "NSR02", .len = 5, .kboff = 32, .sboff = 1 }, - { .magic = "NSR03", .len = 5, .kboff = 32, .sboff = 1 }, - { .magic = "TEA01", .len = 5, .kboff = 32, .sboff = 1 }, - { NULL } - } -}; |