2 * volume_id - reads filesystem label and uuid
4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
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.
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.
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
22 #include "volume_id.h"
24 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
26 #define dbg(...) ((void)0)
27 /* #define dbg(...) bb_error_msg(__VA_ARGS__) */
31 #define VOLUME_ID_VERSION 48
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
38 enum volume_id_usage
{
43 VOLUME_ID_PARTITIONTABLE
,
49 #ifdef UNUSED_PARTITION_CODE
50 struct volume_id_partition
{
54 // uint8_t pt_type_raw;
69 #ifdef UNUSED_PARTITION_CODE
70 struct volume_id_partition
*partitions
;
71 size_t partition_count
;
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];
83 #if ENABLE_FEATURE_BLKID_TYPE
88 struct volume_id
* FAST_FUNC
volume_id_open_node(int fd
);
89 int FAST_FUNC
volume_id_probe_all(struct volume_id
*id
, /*uint64_t off,*/ uint64_t size
);
90 void FAST_FUNC
free_volume_id(struct volume_id
*id
);
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
99 #define bswap16(x) (uint16_t) ( \
100 (((uint16_t)(x) & 0x00ffu) << 8) | \
101 (((uint16_t)(x) & 0xff00u) >> 8))
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))
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))
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)
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)
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.
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) */
155 void 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);
159 void volume_id_set_label_string(struct volume_id
*id
, const uint8_t *buf
, size_t count
);
160 void volume_id_set_label_unicode16(struct volume_id
*id
, const uint8_t *buf
, enum endian endianess
, size_t count
);
161 void volume_id_set_uuid(struct volume_id
*id
, const uint8_t *buf
, enum uuid_format format
);
162 void *volume_id_get_buffer(struct volume_id
*id
, uint64_t off
, size_t len
);
163 void volume_id_free_buffer(struct volume_id
*id
);
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);
173 //int FAST_FUNC volume_id_probe_intel_software_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
175 int FAST_FUNC
volume_id_probe_linux_raid(struct volume_id
*id
/*,uint64_t off*/, uint64_t size
);
177 //int FAST_FUNC volume_id_probe_lsi_mega_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
179 //int FAST_FUNC volume_id_probe_nvidia_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
181 //int FAST_FUNC volume_id_probe_promise_fasttrack_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
183 //int FAST_FUNC volume_id_probe_silicon_medley_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
185 //int FAST_FUNC volume_id_probe_via_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
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*/);
192 int FAST_FUNC
volume_id_probe_btrfs(struct volume_id
*id
/*,uint64_t off*/);
194 int FAST_FUNC
volume_id_probe_cramfs(struct volume_id
*id
/*,uint64_t off*/);
196 int FAST_FUNC
volume_id_probe_ext(struct volume_id
*id
/*,uint64_t off*/);
198 int FAST_FUNC
volume_id_probe_vfat(struct volume_id
*id
/*,uint64_t off*/);
200 int FAST_FUNC
volume_id_probe_hfs_hfsplus(struct volume_id
*id
/*,uint64_t off*/);
202 //int FAST_FUNC volume_id_probe_hpfs(struct volume_id *id /*,uint64_t off*/);
204 int FAST_FUNC
volume_id_probe_iso9660(struct volume_id
*id
/*,uint64_t off*/);
206 int FAST_FUNC
volume_id_probe_jfs(struct volume_id
*id
/*,uint64_t off*/);
208 int FAST_FUNC
volume_id_probe_linux_swap(struct volume_id
*id
/*,uint64_t off*/);
210 int FAST_FUNC
volume_id_probe_luks(struct volume_id
*id
/*,uint64_t off*/);
212 //int FAST_FUNC volume_id_probe_mac_partition_map(struct volume_id *id /*,uint64_t off*/);
214 //int FAST_FUNC volume_id_probe_minix(struct volume_id *id /*,uint64_t off*/);
216 //int FAST_FUNC volume_id_probe_msdos_part_table(struct volume_id *id /*,uint64_t off*/);
218 int FAST_FUNC
volume_id_probe_nilfs(struct volume_id
*id
/*,uint64_t off*/);
220 int FAST_FUNC
volume_id_probe_ntfs(struct volume_id
*id
/*,uint64_t off*/);
222 int FAST_FUNC
volume_id_probe_exfat(struct volume_id
*id
/*,uint64_t off*/);
224 int FAST_FUNC
volume_id_probe_ocfs2(struct volume_id
*id
/*,uint64_t off*/);
226 int FAST_FUNC
volume_id_probe_reiserfs(struct volume_id
*id
/*,uint64_t off*/);
228 int FAST_FUNC
volume_id_probe_romfs(struct volume_id
*id
/*,uint64_t off*/);
230 int FAST_FUNC
volume_id_probe_squashfs(struct volume_id
*id
/*,uint64_t off*/);
232 int FAST_FUNC
volume_id_probe_sysv(struct volume_id
*id
/*,uint64_t off*/);
234 int FAST_FUNC
volume_id_probe_udf(struct volume_id
*id
/*,uint64_t off*/);
236 //int FAST_FUNC volume_id_probe_ufs(struct volume_id *id /*,uint64_t off*/);
238 int FAST_FUNC
volume_id_probe_xfs(struct volume_id
*id
/*,uint64_t off*/);
240 POP_SAVED_FUNCTION_VISIBILITY