source: branches/3.2/mindi-busybox/util-linux/volume_id/volume_id_internal.h @ 3232

Last change on this file since 3232 was 3232, checked in by bruno, 5 years ago
  • Update mindi-busybox to 1.21.1
  • Property svn:eol-style set to native
File size: 8.1 KB
Line 
1/*
2 * volume_id - reads filesystem label and uuid
3 *
4 * Copyright (C) 2005 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
21#include "libbb.h"
22#include "volume_id.h"
23
24PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
25
26#define dbg(...) ((void)0)
27/* #define dbg(...) bb_error_msg(__VA_ARGS__) */
28
29/* volume_id.h */
30
31#define VOLUME_ID_VERSION       48
32
33#define VOLUME_ID_LABEL_SIZE        64
34#define VOLUME_ID_UUID_SIZE     36
35#define VOLUME_ID_FORMAT_SIZE       32
36#define VOLUME_ID_PARTITIONS_MAX    256
37
38enum volume_id_usage {
39    VOLUME_ID_UNUSED,
40    VOLUME_ID_UNPROBED,
41    VOLUME_ID_OTHER,
42    VOLUME_ID_FILESYSTEM,
43    VOLUME_ID_PARTITIONTABLE,
44    VOLUME_ID_RAID,
45    VOLUME_ID_DISKLABEL,
46    VOLUME_ID_CRYPTO,
47};
48
49#ifdef UNUSED_PARTITION_CODE
50struct volume_id_partition {
51//  const char  *type;
52//  const char  *usage;
53//  smallint    usage_id;
54//  uint8_t     pt_type_raw;
55//  uint64_t    pt_off;
56//  uint64_t    pt_len;
57};
58#endif
59
60struct volume_id {
61    int     fd;
62//  int     fd_close:1;
63    int     error;
64    size_t      sbbuf_len;
65    size_t      seekbuf_len;
66    uint8_t     *sbbuf;
67    uint8_t     *seekbuf;
68    uint64_t    seekbuf_off;
69#ifdef UNUSED_PARTITION_CODE
70    struct volume_id_partition *partitions;
71    size_t      partition_count;
72#endif
73//  uint8_t     label_raw[VOLUME_ID_LABEL_SIZE];
74//  size_t      label_raw_len;
75    char        label[VOLUME_ID_LABEL_SIZE+1];
76//  uint8_t     uuid_raw[VOLUME_ID_UUID_SIZE];
77//  size_t      uuid_raw_len;
78    /* uuid is stored in ASCII (not binary) form here: */
79    char        uuid[VOLUME_ID_UUID_SIZE+1];
80//  char        type_version[VOLUME_ID_FORMAT_SIZE];
81//  smallint    usage_id;
82//  const char  *usage;
83#if ENABLE_FEATURE_BLKID_TYPE
84    const char  *type;
85#endif
86};
87
88struct volume_id* FAST_FUNC volume_id_open_node(int fd);
89int FAST_FUNC volume_id_probe_all(struct volume_id *id, /*uint64_t off,*/ uint64_t size);
90void FAST_FUNC free_volume_id(struct volume_id *id);
91
92/* util.h */
93
94/* size of superblock buffer, reiserfs block is at 64k */
95#define SB_BUFFER_SIZE              0x11000
96/* size of seek buffer, FAT cluster is 32k max */
97#define SEEK_BUFFER_SIZE            0x10000
98
99#define bswap16(x) (uint16_t)   ( \
100                (((uint16_t)(x) & 0x00ffu) << 8) | \
101                (((uint16_t)(x) & 0xff00u) >> 8))
102
103#define bswap32(x) (uint32_t)   ( \
104                (((uint32_t)(x) & 0xff000000u) >> 24) | \
105                (((uint32_t)(x) & 0x00ff0000u) >>  8) | \
106                (((uint32_t)(x) & 0x0000ff00u) <<  8) | \
107                (((uint32_t)(x) & 0x000000ffu) << 24))
108
109#define bswap64(x) (uint64_t)   ( \
110                (((uint64_t)(x) & 0xff00000000000000ull) >> 56) | \
111                (((uint64_t)(x) & 0x00ff000000000000ull) >> 40) | \
112                (((uint64_t)(x) & 0x0000ff0000000000ull) >> 24) | \
113                (((uint64_t)(x) & 0x000000ff00000000ull) >>  8) | \
114                (((uint64_t)(x) & 0x00000000ff000000ull) <<  8) | \
115                (((uint64_t)(x) & 0x0000000000ff0000ull) << 24) | \
116                (((uint64_t)(x) & 0x000000000000ff00ull) << 40) | \
117                (((uint64_t)(x) & 0x00000000000000ffull) << 56))
118
119#if BB_LITTLE_ENDIAN
120#define le16_to_cpu(x) (x)
121#define le32_to_cpu(x) (x)
122#define le64_to_cpu(x) (x)
123#define be16_to_cpu(x) bswap16(x)
124#define be32_to_cpu(x) bswap32(x)
125#define cpu_to_le16(x) (x)
126#define cpu_to_le32(x) (x)
127#define cpu_to_be32(x) bswap32(x)
128#else
129#define le16_to_cpu(x) bswap16(x)
130#define le32_to_cpu(x) bswap32(x)
131#define le64_to_cpu(x) bswap64(x)
132#define be16_to_cpu(x) (x)
133#define be32_to_cpu(x) (x)
134#define cpu_to_le16(x) bswap16(x)
135#define cpu_to_le32(x) bswap32(x)
136#define cpu_to_be32(x) (x)
137#endif
138
139/* volume_id_set_uuid(id,buf,fmt) assumes size of uuid buf
140 * by shifting: 4 << fmt, except for fmt == UUID_DCE_STRING.
141 * The constants below should match sizes.
142 */
143enum uuid_format {
144    UUID_DOS = 0,       /* 4 bytes */
145    UUID_NTFS = 1,      /* 8 bytes */
146    UUID_DCE = 2,       /* 16 bytes */
147    UUID_DCE_STRING = 3,    /* 36 bytes (VOLUME_ID_UUID_SIZE) */
148};
149
150enum endian {
151    LE = 0,
152    BE = 1
153};
154
155void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
156//void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
157//void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
158//void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
159void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
160void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
161void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
162void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
163void volume_id_free_buffer(struct volume_id *id);
164
165
166/* Probe routines */
167
168/* RAID */
169
170//int FAST_FUNC volume_id_probe_highpoint_37x_raid(struct volume_id *id /*,uint64_t off*/);
171//int FAST_FUNC volume_id_probe_highpoint_45x_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
172
173//int FAST_FUNC volume_id_probe_intel_software_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
174
175int FAST_FUNC volume_id_probe_linux_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
176
177//int FAST_FUNC volume_id_probe_lsi_mega_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
178
179//int FAST_FUNC volume_id_probe_nvidia_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
180
181//int FAST_FUNC volume_id_probe_promise_fasttrack_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
182
183//int FAST_FUNC volume_id_probe_silicon_medley_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
184
185//int FAST_FUNC volume_id_probe_via_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
186
187//int FAST_FUNC volume_id_probe_lvm1(struct volume_id *id /*,uint64_t off*/);
188//int FAST_FUNC volume_id_probe_lvm2(struct volume_id *id /*,uint64_t off*/);
189
190/* FS */
191
192int FAST_FUNC volume_id_probe_btrfs(struct volume_id *id /*,uint64_t off*/);
193
194int FAST_FUNC volume_id_probe_cramfs(struct volume_id *id /*,uint64_t off*/);
195
196int FAST_FUNC volume_id_probe_ext(struct volume_id *id /*,uint64_t off*/);
197
198int FAST_FUNC volume_id_probe_vfat(struct volume_id *id /*,uint64_t off*/);
199
200int FAST_FUNC volume_id_probe_hfs_hfsplus(struct volume_id *id /*,uint64_t off*/);
201
202//int FAST_FUNC volume_id_probe_hpfs(struct volume_id *id /*,uint64_t off*/);
203
204int FAST_FUNC volume_id_probe_iso9660(struct volume_id *id /*,uint64_t off*/);
205
206int FAST_FUNC volume_id_probe_jfs(struct volume_id *id /*,uint64_t off*/);
207
208int FAST_FUNC volume_id_probe_linux_swap(struct volume_id *id /*,uint64_t off*/);
209
210int FAST_FUNC volume_id_probe_luks(struct volume_id *id /*,uint64_t off*/);
211
212//int FAST_FUNC volume_id_probe_mac_partition_map(struct volume_id *id /*,uint64_t off*/);
213
214//int FAST_FUNC volume_id_probe_minix(struct volume_id *id /*,uint64_t off*/);
215
216//int FAST_FUNC volume_id_probe_msdos_part_table(struct volume_id *id /*,uint64_t off*/);
217
218int FAST_FUNC volume_id_probe_nilfs(struct volume_id *id /*,uint64_t off*/);
219
220int FAST_FUNC volume_id_probe_ntfs(struct volume_id *id /*,uint64_t off*/);
221
222int FAST_FUNC volume_id_probe_exfat(struct volume_id *id /*,uint64_t off*/);
223
224int FAST_FUNC volume_id_probe_ocfs2(struct volume_id *id /*,uint64_t off*/);
225
226int FAST_FUNC volume_id_probe_reiserfs(struct volume_id *id /*,uint64_t off*/);
227
228int FAST_FUNC volume_id_probe_romfs(struct volume_id *id /*,uint64_t off*/);
229
230int FAST_FUNC volume_id_probe_squashfs(struct volume_id *id /*,uint64_t off*/);
231
232int FAST_FUNC volume_id_probe_sysv(struct volume_id *id /*,uint64_t off*/);
233
234int FAST_FUNC volume_id_probe_udf(struct volume_id *id /*,uint64_t off*/);
235
236//int FAST_FUNC volume_id_probe_ufs(struct volume_id *id /*,uint64_t off*/);
237
238int FAST_FUNC volume_id_probe_xfs(struct volume_id *id /*,uint64_t off*/);
239
240POP_SAVED_FUNCTION_VISIBILITY
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