2 * volume_id - reads filesystem label and uuid
4 * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
5 * Copyright (C) 2005 Tobias Klauser <tklauser@access.unizh.ch>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "volume_id_internal.h"
24 struct reiserfs_super_block {
25 uint32_t blocks_count;
28 uint32_t journal_block;
30 uint32_t orig_journal_size;
38 } __attribute__((__packed__));
40 struct reiser4_super_block {
46 } __attribute__((__packed__));
48 #define REISERFS1_SUPERBLOCK_OFFSET 0x2000
49 #define REISERFS_SUPERBLOCK_OFFSET 0x10000
51 int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off)
53 struct reiserfs_super_block *rs;
54 struct reiser4_super_block *rs4;
56 dbg("reiserfs: probing at offset 0x%llx", (unsigned long long) off);
58 rs = volume_id_get_buffer(id, off + REISERFS_SUPERBLOCK_OFFSET, 0x200);
62 if (memcmp(rs->magic, "ReIsErFs", 8) == 0) {
63 dbg("reiserfs: ReIsErFs, no label");
64 // strcpy(id->type_version, "3.5");
67 if (memcmp(rs->magic, "ReIsEr2Fs", 9) == 0) {
68 dbg("reiserfs: ReIsEr2Fs");
69 // strcpy(id->type_version, "3.6");
72 if (memcmp(rs->magic, "ReIsEr3Fs", 9) == 0) {
73 dbg("reiserfs: ReIsEr3Fs");
74 // strcpy(id->type_version, "JR");
78 rs4 = (struct reiser4_super_block *) rs;
79 if (memcmp(rs4->magic, "ReIsEr4", 7) == 0) {
80 // strcpy(id->type_version, "4");
81 // volume_id_set_label_raw(id, rs4->label, 16);
82 volume_id_set_label_string(id, rs4->label, 16);
83 volume_id_set_uuid(id, rs4->uuid, UUID_DCE);
84 dbg("reiserfs: ReIsEr4, label '%s' uuid '%s'", id->label, id->uuid);
88 rs = volume_id_get_buffer(id, off + REISERFS1_SUPERBLOCK_OFFSET, 0x200);
92 if (memcmp(rs->magic, "ReIsErFs", 8) == 0) {
93 dbg("reiserfs: ReIsErFs, no label");
94 // strcpy(id->type_version, "3.5");
98 dbg("reiserfs: no signature found");
102 // volume_id_set_label_raw(id, rs->label, 16);
103 volume_id_set_label_string(id, rs->label, 16);
104 volume_id_set_uuid(id, rs->uuid, UUID_DCE);
105 dbg("reiserfs: label '%s' uuid '%s'", id->label, id->uuid);
108 // volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
109 // id->type = "reiserfs";