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 //kbuild:lib-$(CONFIG_FEATURE_VOLUMEID_REISERFS) += reiserfs.o
25 //config:config FEATURE_VOLUMEID_REISERFS
26 //config: bool "Reiser filesystem"
28 //config: depends on VOLUMEID
33 #include "volume_id_internal.h"
35 struct reiserfs_super_block {
36 uint32_t blocks_count;
39 uint32_t journal_block;
41 uint32_t orig_journal_size;
51 struct reiser4_super_block {
59 #define REISERFS1_SUPERBLOCK_OFFSET 0x2000
60 #define REISERFS_SUPERBLOCK_OFFSET 0x10000
62 int FAST_FUNC volume_id_probe_reiserfs(struct volume_id *id /*,uint64_t off*/)
64 #define off ((uint64_t)0)
65 struct reiserfs_super_block *rs;
66 struct reiser4_super_block *rs4;
68 dbg("reiserfs: probing at offset 0x%llx", (unsigned long long) off);
70 rs = volume_id_get_buffer(id, off + REISERFS_SUPERBLOCK_OFFSET, 0x200);
74 if (memcmp(rs->magic, "ReIsErFs", 8) == 0) {
75 dbg("reiserfs: ReIsErFs, no label");
76 // strcpy(id->type_version, "3.5");
79 if (memcmp(rs->magic, "ReIsEr2Fs", 9) == 0) {
80 dbg("reiserfs: ReIsEr2Fs");
81 // strcpy(id->type_version, "3.6");
84 if (memcmp(rs->magic, "ReIsEr3Fs", 9) == 0) {
85 dbg("reiserfs: ReIsEr3Fs");
86 // strcpy(id->type_version, "JR");
90 rs4 = (struct reiser4_super_block *) rs;
91 if (memcmp(rs4->magic, "ReIsEr4", 7) == 0) {
92 // strcpy(id->type_version, "4");
93 // volume_id_set_label_raw(id, rs4->label, 16);
94 volume_id_set_label_string(id, rs4->label, 16);
95 volume_id_set_uuid(id, rs4->uuid, UUID_DCE);
96 dbg("reiserfs: ReIsEr4, label '%s' uuid '%s'", id->label, id->uuid);
100 rs = volume_id_get_buffer(id, off + REISERFS1_SUPERBLOCK_OFFSET, 0x200);
104 if (memcmp(rs->magic, "ReIsErFs", 8) == 0) {
105 dbg("reiserfs: ReIsErFs, no label");
106 // strcpy(id->type_version, "3.5");
110 dbg("reiserfs: no signature found");
114 // volume_id_set_label_raw(id, rs->label, 16);
115 volume_id_set_label_string(id, rs->label, 16);
116 volume_id_set_uuid(id, rs->uuid, UUID_DCE);
117 dbg("reiserfs: label '%s' uuid '%s'", id->label, id->uuid);
120 // volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
121 IF_FEATURE_BLKID_TYPE(id->type = "reiserfs";)