1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* Copyright (C) 1999, 2001 by Andries Brouwer
* Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
* 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 <stdint.h>
#include "superblocks.h"
struct ocfs_volume_header {
unsigned char minor_version[4];
unsigned char major_version[4];
unsigned char signature[128];
char mount[128];
unsigned char mount_len[2];
} __attribute__((packed));
struct ocfs_volume_label {
unsigned char disk_lock[48];
char label[64];
unsigned char label_len[2];
unsigned char vol_id[16];
unsigned char vol_id_len[2];
} __attribute__((packed));
#define ocfsmajor(o) ( (uint32_t) o.major_version[0] \
+ (((uint32_t) o.major_version[1]) << 8) \
+ (((uint32_t) o.major_version[2]) << 16) \
+ (((uint32_t) o.major_version[3]) << 24))
#define ocfsminor(o) ( (uint32_t) o.minor_version[0] \
+ (((uint32_t) o.minor_version[1]) << 8) \
+ (((uint32_t) o.minor_version[2]) << 16) \
+ (((uint32_t) o.minor_version[3]) << 24))
#define ocfslabellen(o) ((uint32_t)o.label_len[0] + (((uint32_t) o.label_len[1]) << 8))
#define ocfsmountlen(o) ((uint32_t)o.mount_len[0] + (((uint32_t) o.mount_len[1]) << 8))
struct ocfs2_super_block {
uint8_t i_signature[8];
uint32_t i_generation;
int16_t i_suballoc_slot;
uint16_t i_suballoc_bit;
uint32_t i_reserved0;
uint32_t i_clusters;
uint32_t i_uid;
uint32_t i_gid;
uint64_t i_size;
uint16_t i_mode;
uint16_t i_links_count;
uint32_t i_flags;
uint64_t i_atime;
uint64_t i_ctime;
uint64_t i_mtime;
uint64_t i_dtime;
uint64_t i_blkno;
uint64_t i_last_eb_blk;
uint32_t i_fs_generation;
uint32_t i_atime_nsec;
uint32_t i_ctime_nsec;
uint32_t i_mtime_nsec;
uint64_t i_reserved1[9];
uint64_t i_pad1;
uint16_t s_major_rev_level;
uint16_t s_minor_rev_level;
uint16_t s_mnt_count;
int16_t s_max_mnt_count;
uint16_t s_state;
uint16_t s_errors;
uint32_t s_checkinterval;
uint64_t s_lastcheck;
uint32_t s_creator_os;
uint32_t s_feature_compat;
uint32_t s_feature_incompat;
uint32_t s_feature_ro_compat;
uint64_t s_root_blkno;
uint64_t s_system_dir_blkno;
uint32_t s_blocksize_bits;
uint32_t s_clustersize_bits;
uint16_t s_max_slots;
uint16_t s_reserved1;
uint32_t s_reserved2;
uint64_t s_first_cluster_group;
uint8_t s_label[64];
uint8_t s_uuid[16];
} __attribute__((packed));
struct oracle_asm_disk_label {
char dummy[32];
char dl_tag[8];
char dl_id[24];
} __attribute__((packed));
static int probe_ocfs(blkid_probe pr, const struct blkid_idmag *mag)
{
unsigned char *buf;
struct ocfs_volume_header ovh;
struct ocfs_volume_label ovl;
uint32_t maj, min;
/* header */
buf = blkid_probe_get_buffer(pr, mag->kboff << 10,
sizeof(struct ocfs_volume_header));
if (!buf)
return errno ? -errno : 1;
memcpy(&ovh, buf, sizeof(ovh));
/* label */
buf = blkid_probe_get_buffer(pr, (mag->kboff << 10) + 512,
sizeof(struct ocfs_volume_label));
if (!buf)
return errno ? -errno : 1;
memcpy(&ovl, buf, sizeof(ovl));
maj = ocfsmajor(ovh);
min = ocfsminor(ovh);
if (maj == 1)
blkid_probe_set_value(pr, "SEC_TYPE",
(unsigned char *) "ocfs1", sizeof("ocfs1"));
else if (maj >= 9)
blkid_probe_set_value(pr, "SEC_TYPE",
(unsigned char *) "ntocfs", sizeof("ntocfs"));
if (ocfslabellen(ovl) < sizeof(ovl.label))
blkid_probe_set_label(pr, (unsigned char *) ovl.label,
ocfslabellen(ovl));
if (ocfsmountlen(ovh) < sizeof(ovh.mount))
blkid_probe_set_value(pr, "MOUNT", (unsigned char *) ovh.mount,
ocfsmountlen(ovh));
blkid_probe_set_uuid(pr, ovl.vol_id);
blkid_probe_sprintf_version(pr, "%u.%u", maj, min);
return 0;
}
static int probe_ocfs2(blkid_probe pr, const struct blkid_idmag *mag)
{
struct ocfs2_super_block *osb;
osb = blkid_probe_get_sb(pr, mag, struct ocfs2_super_block);
if (!osb)
return errno ? -errno : 1;
blkid_probe_set_label(pr, (unsigned char *) osb->s_label, sizeof(osb->s_label));
blkid_probe_set_uuid(pr, osb->s_uuid);
blkid_probe_sprintf_version(pr, "%u.%u",
le16_to_cpu(osb->s_major_rev_level),
le16_to_cpu(osb->s_minor_rev_level));
if (le32_to_cpu(osb->s_blocksize_bits) < 32){
blkid_probe_set_fsblocksize(pr, 1U << le32_to_cpu(osb->s_blocksize_bits));
blkid_probe_set_block_size(pr, 1U << le32_to_cpu(osb->s_blocksize_bits));
}
return 0;
}
static int probe_oracleasm(blkid_probe pr, const struct blkid_idmag *mag)
{
struct oracle_asm_disk_label *dl;
dl = blkid_probe_get_sb(pr, mag, struct oracle_asm_disk_label);
if (!dl)
return errno ? -errno : 1;
blkid_probe_set_label(pr, (unsigned char *) dl->dl_id, sizeof(dl->dl_id));
return 0;
}
const struct blkid_idinfo ocfs_idinfo =
{
.name = "ocfs",
.usage = BLKID_USAGE_FILESYSTEM,
.probefunc = probe_ocfs,
.minsz = 14000 * 1024,
.magics =
{
{ .magic = "OracleCFS", .len = 9, .kboff = 8 },
{ NULL }
}
};
const struct blkid_idinfo ocfs2_idinfo =
{
.name = "ocfs2",
.usage = BLKID_USAGE_FILESYSTEM,
.probefunc = probe_ocfs2,
.minsz = 14000 * 1024,
.magics =
{
{ .magic = "OCFSV2", .len = 6, .kboff = 1 },
{ .magic = "OCFSV2", .len = 6, .kboff = 2 },
{ .magic = "OCFSV2", .len = 6, .kboff = 4 },
{ .magic = "OCFSV2", .len = 6, .kboff = 8 },
{ NULL }
}
};
/* Oracle ASM (Automatic Storage Management) */
const struct blkid_idinfo oracleasm_idinfo =
{
.name = "oracleasm",
.usage = BLKID_USAGE_FILESYSTEM,
.probefunc = probe_oracleasm,
.magics =
{
{ .magic = "ORCLDISK", .len = 8, .sboff = 32 },
{ NULL }
}
};
|
