c5b737231d
function old new delta uuidcache_init 567 704 +137 findfs_main - 125 +125 packed_usage 23662 23694 +32 static.drive_name_string - 14 +14 applet_names 1815 1822 +7 applet_main 1104 1108 +4 volume_id_open_node 35 38 +3 applet_nameofs 552 554 +2 get_devname_from_label 78 79 +1 applet_install_loc 138 139 +1 volume_id_set_label_unicode16 31 27 -4 volume_id_set_label_string 74 70 -4 get_devname_from_uuid 63 59 -4 fs1 12 8 -4 volume_id_set_unicode16 209 202 -7 volume_id_free_buffer 71 56 -15 free_volume_id 52 37 -15 volume_id_probe_luks 97 79 -18 volume_id_set_usage_part 21 - -21 volume_id_probe_ufs 148 126 -22 volume_id_probe_lsi_mega_raid 131 108 -23 volume_id_probe_highpoint_45x_raid 127 104 -23 volume_id_probe_highpoint_37x_raid 87 63 -24 volume_id_set_usage 28 - -28 volume_id_probe_romfs 121 93 -28 volume_id_set_label_raw 30 - -30 volume_id_probe_promise_fasttrack_raid 174 144 -30 volume_id_set_uuid 373 342 -31 volume_id_probe_xfs 122 91 -31 volume_id_probe_jfs 138 107 -31 volume_id_probe_ocfs2 139 107 -32 volume_id_probe_lvm1 90 58 -32 volume_id_probe_cramfs 106 63 -43 volume_id_probe_via_raid 145 101 -44 volume_id_probe_intel_software_raid 153 108 -45 volume_id_probe_minix 121 74 -47 volume_id_probe_udf 682 632 -50 volume_id_probe_nvidia_raid 158 108 -50 volume_id_probe_lvm2 128 78 -50 volume_id_probe_hpfs 117 67 -50 volume_id_probe_ext 143 93 -50 volume_id_probe_linux_raid 191 139 -52 volume_id_probe_sysv 244 187 -57 volume_id_probe_silicon_medley_raid 158 97 -61 usage_to_string 64 - -64 volume_id_probe_linux_swap 263 198 -65 volume_id_get_buffer 372 307 -65 volume_id_probe_iso9660 412 332 -80 volume_id_probe_hfs_hfsplus 888 806 -82 volume_id_probe_ntfs 396 294 -102 volume_id_probe_vfat 980 872 -108 volume_id_probe_reiserfs 417 268 -149 dev_get_major_minor 175 - -175 uuidcache_check_device 692 499 -193 volume_id_probe_mac_partition_map 697 - -697 ------------------------------------------------------------------------------ (add/remove: 2/6 grow/shrink: 8/39 up/down: 326/-2836) Total: -2510 bytes text data bss dec hex filename 797220 662 7420 805302 c49b6 busybox_old 794244 662 7420 802326 c3e16 busybox_unstripped
120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
/*
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* volume_id - reads filesystem label and uuid
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*
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* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "volume_id_internal.h"
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#define ISO_SUPERBLOCK_OFFSET 0x8000
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#define ISO_SECTOR_SIZE 0x800
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#define ISO_VD_OFFSET (ISO_SUPERBLOCK_OFFSET + ISO_SECTOR_SIZE)
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#define ISO_VD_PRIMARY 0x1
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#define ISO_VD_SUPPLEMENTARY 0x2
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#define ISO_VD_END 0xff
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#define ISO_VD_MAX 16
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struct iso_volume_descriptor {
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uint8_t vd_type;
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uint8_t vd_id[5];
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uint8_t vd_version;
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uint8_t flags;
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uint8_t system_id[32];
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uint8_t volume_id[32];
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uint8_t unused[8];
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uint8_t space_size[8];
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uint8_t escape_sequences[8];
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} __attribute__((__packed__));
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struct high_sierra_volume_descriptor {
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uint8_t foo[8];
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uint8_t type;
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uint8_t id[4];
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uint8_t version;
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} __attribute__((__packed__));
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int volume_id_probe_iso9660(struct volume_id *id, uint64_t off)
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{
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uint8_t *buf;
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struct iso_volume_descriptor *is;
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struct high_sierra_volume_descriptor *hs;
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dbg("probing at offset 0x%llx", (unsigned long long) off);
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buf = volume_id_get_buffer(id, off + ISO_SUPERBLOCK_OFFSET, 0x200);
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if (buf == NULL)
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return -1;
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is = (struct iso_volume_descriptor *) buf;
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if (memcmp(is->vd_id, "CD001", 5) == 0) {
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int vd_offset;
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int i;
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dbg("read label from PVD");
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// volume_id_set_label_raw(id, is->volume_id, 32);
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volume_id_set_label_string(id, is->volume_id, 32);
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dbg("looking for SVDs");
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vd_offset = ISO_VD_OFFSET;
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for (i = 0; i < ISO_VD_MAX; i++) {
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uint8_t svd_label[64];
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is = volume_id_get_buffer(id, off + vd_offset, 0x200);
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if (is == NULL || is->vd_type == ISO_VD_END)
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break;
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if (is->vd_type != ISO_VD_SUPPLEMENTARY)
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continue;
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dbg("found SVD at offset 0x%llx", (unsigned long long) (off + vd_offset));
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if (memcmp(is->escape_sequences, "%/@", 3) == 0
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|| memcmp(is->escape_sequences, "%/C", 3) == 0
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|| memcmp(is->escape_sequences, "%/E", 3) == 0
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) {
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dbg("Joliet extension found");
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volume_id_set_unicode16((char *)svd_label, sizeof(svd_label), is->volume_id, BE, 32);
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if (memcmp(id->label, svd_label, 16) == 0) {
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dbg("SVD label is identical, use the possibly longer PVD one");
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break;
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}
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// volume_id_set_label_raw(id, is->volume_id, 32);
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volume_id_set_label_string(id, svd_label, 32);
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// strcpy(id->type_version, "Joliet Extension");
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goto found;
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}
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vd_offset += ISO_SECTOR_SIZE;
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}
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goto found;
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}
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hs = (struct high_sierra_volume_descriptor *) buf;
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if (memcmp(hs->id, "CDROM", 5) == 0) {
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// strcpy(id->type_version, "High Sierra");
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goto found;
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}
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return -1;
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found:
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// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
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// id->type = "iso9660";
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return 0;
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}
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