source: MondoRescue/branches/3.3/mindi-busybox/util-linux/volume_id/unused_ufs.c@ 3865

Last change on this file since 3865 was 3621, checked in by Bruno Cornec, 10 years ago

New 3?3 banch for incorporation of latest busybox 1.25. Changing minor version to handle potential incompatibilities.
  • Property svn:eol-style set to native
File size: 5.2 KB
RevLine 
[2725]1/*
2 * volume_id - reads filesystem label and uuid
3 *
4 * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
[3621]21//kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_UFS) += ufs.o
22
23//config:
24//config:### config FEATURE_VOLUMEID_UFS
25//config:### bool "ufs filesystem"
26//config:### default y
27//config:### depends on VOLUMEID
28//config:### help
29//config:### TODO
30//config:
31
[2725]32#include "volume_id_internal.h"
33
34struct ufs_super_block {
35 uint32_t fs_link;
36 uint32_t fs_rlink;
37 uint32_t fs_sblkno;
38 uint32_t fs_cblkno;
39 uint32_t fs_iblkno;
40 uint32_t fs_dblkno;
41 uint32_t fs_cgoffset;
42 uint32_t fs_cgmask;
43 uint32_t fs_time;
44 uint32_t fs_size;
45 uint32_t fs_dsize;
46 uint32_t fs_ncg;
47 uint32_t fs_bsize;
48 uint32_t fs_fsize;
49 uint32_t fs_frag;
50 uint32_t fs_minfree;
51 uint32_t fs_rotdelay;
52 uint32_t fs_rps;
53 uint32_t fs_bmask;
54 uint32_t fs_fmask;
55 uint32_t fs_bshift;
56 uint32_t fs_fshift;
57 uint32_t fs_maxcontig;
58 uint32_t fs_maxbpg;
59 uint32_t fs_fragshift;
60 uint32_t fs_fsbtodb;
61 uint32_t fs_sbsize;
62 uint32_t fs_csmask;
63 uint32_t fs_csshift;
64 uint32_t fs_nindir;
65 uint32_t fs_inopb;
66 uint32_t fs_nspf;
67 uint32_t fs_optim;
68 uint32_t fs_npsect_state;
69 uint32_t fs_interleave;
70 uint32_t fs_trackskew;
71 uint32_t fs_id[2];
72 uint32_t fs_csaddr;
73 uint32_t fs_cssize;
74 uint32_t fs_cgsize;
75 uint32_t fs_ntrak;
76 uint32_t fs_nsect;
77 uint32_t fs_spc;
78 uint32_t fs_ncyl;
79 uint32_t fs_cpg;
80 uint32_t fs_ipg;
81 uint32_t fs_fpg;
82 struct ufs_csum {
83 uint32_t cs_ndir;
84 uint32_t cs_nbfree;
85 uint32_t cs_nifree;
86 uint32_t cs_nffree;
87 } PACKED fs_cstotal;
88 int8_t fs_fmod;
89 int8_t fs_clean;
90 int8_t fs_ronly;
91 int8_t fs_flags;
92 union {
93 struct {
94 int8_t fs_fsmnt[512];
95 uint32_t fs_cgrotor;
96 uint32_t fs_csp[31];
97 uint32_t fs_maxcluster;
98 uint32_t fs_cpc;
99 uint16_t fs_opostbl[16][8];
100 } PACKED fs_u1;
101 struct {
102 int8_t fs_fsmnt[468];
103 uint8_t fs_volname[32];
104 uint64_t fs_swuid;
105 int32_t fs_pad;
106 uint32_t fs_cgrotor;
107 uint32_t fs_ocsp[28];
108 uint32_t fs_contigdirs;
109 uint32_t fs_csp;
110 uint32_t fs_maxcluster;
111 uint32_t fs_active;
112 int32_t fs_old_cpc;
113 int32_t fs_maxbsize;
114 int64_t fs_sparecon64[17];
115 int64_t fs_sblockloc;
116 struct ufs2_csum_total {
117 uint64_t cs_ndir;
118 uint64_t cs_nbfree;
119 uint64_t cs_nifree;
120 uint64_t cs_nffree;
121 uint64_t cs_numclusters;
122 uint64_t cs_spare[3];
123 } PACKED fs_cstotal;
124 struct ufs_timeval {
125 int32_t tv_sec;
126 int32_t tv_usec;
127 } PACKED fs_time;
128 int64_t fs_size;
129 int64_t fs_dsize;
130 uint64_t fs_csaddr;
131 int64_t fs_pendingblocks;
132 int32_t fs_pendinginodes;
133 } PACKED fs_u2;
134 } fs_u11;
135 union {
136 struct {
137 int32_t fs_sparecon[53];
138 int32_t fs_reclaim;
139 int32_t fs_sparecon2[1];
140 int32_t fs_state;
141 uint32_t fs_qbmask[2];
142 uint32_t fs_qfmask[2];
143 } PACKED fs_sun;
144 struct {
145 int32_t fs_sparecon[53];
146 int32_t fs_reclaim;
147 int32_t fs_sparecon2[1];
148 uint32_t fs_npsect;
149 uint32_t fs_qbmask[2];
150 uint32_t fs_qfmask[2];
151 } PACKED fs_sunx86;
152 struct {
153 int32_t fs_sparecon[50];
154 int32_t fs_contigsumsize;
155 int32_t fs_maxsymlinklen;
156 int32_t fs_inodefmt;
157 uint32_t fs_maxfilesize[2];
158 uint32_t fs_qbmask[2];
159 uint32_t fs_qfmask[2];
160 int32_t fs_state;
161 } PACKED fs_44;
162 } fs_u2;
163 int32_t fs_postblformat;
164 int32_t fs_nrpos;
165 int32_t fs_postbloff;
166 int32_t fs_rotbloff;
167 uint32_t fs_magic;
168 uint8_t fs_space[1];
169} PACKED;
170
171#define UFS_MAGIC 0x00011954
172#define UFS2_MAGIC 0x19540119
173#define UFS_MAGIC_FEA 0x00195612
174#define UFS_MAGIC_LFN 0x00095014
175
176int FAST_FUNC volume_id_probe_ufs(struct volume_id *id, uint64_t off)
177{
178 static const short offsets[] = { 0, 8, 64, 256 };
179
180 uint32_t magic;
181 unsigned i;
182 struct ufs_super_block *ufs;
183
184 dbg("probing at offset 0x%llx", (unsigned long long) off);
185
186 for (i = 0; i < ARRAY_SIZE(offsets); i++) {
187 ufs = volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
188 if (ufs == NULL)
189 return -1;
190
191 dbg("offset 0x%x", offsets[i] * 0x400);
192 magic = ufs->fs_magic;
193 if ((magic == cpu_to_be32(UFS_MAGIC))
194 || (magic == cpu_to_be32(UFS2_MAGIC))
195 || (magic == cpu_to_be32(UFS_MAGIC_FEA))
196 || (magic == cpu_to_be32(UFS_MAGIC_LFN))
197 ) {
198 dbg("magic 0x%08x(be)", magic);
199 goto found;
200 }
201 if ((magic == cpu_to_le32(UFS_MAGIC))
202 || (magic == cpu_to_le32(UFS2_MAGIC))
203 || (magic == cpu_to_le32(UFS_MAGIC_FEA))
204 || (magic == cpu_to_le32(UFS_MAGIC_LFN))
205 ) {
206 dbg("magic 0x%08x(le)", magic);
207 goto found;
208 }
209 }
210 return -1;
211
212 found:
213// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
214// id->type = "ufs";
215
216 return 0;
217}
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