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 #if __GNUC_PREREQ(4,1)
25 # pragma GCC visibility push(hidden)
28 #define dbg(...) ((void)0)
29 /* #define dbg(...) bb_error_msg(__VA_ARGS__) */
34 #define VOLUME_ID_VERSION 48
36 #define VOLUME_ID_LABEL_SIZE 64
37 #define VOLUME_ID_UUID_SIZE 36
38 #define VOLUME_ID_FORMAT_SIZE 32
39 #define VOLUME_ID_PARTITIONS_MAX 256
41 enum volume_id_usage {
46 VOLUME_ID_PARTITIONTABLE,
52 #ifdef UNUSED_PARTITION_CODE
53 struct volume_id_partition {
57 // uint8_t pt_type_raw;
71 #ifdef UNUSED_PARTITION_CODE
72 struct volume_id_partition *partitions;
73 size_t partition_count;
75 // uint8_t label_raw[VOLUME_ID_LABEL_SIZE];
76 // size_t label_raw_len;
77 char label[VOLUME_ID_LABEL_SIZE+1];
78 // uint8_t uuid_raw[VOLUME_ID_UUID_SIZE];
79 // size_t uuid_raw_len;
80 /* uuid is stored in ASCII (not binary) form here: */
81 char uuid[VOLUME_ID_UUID_SIZE+1];
82 // char type_version[VOLUME_ID_FORMAT_SIZE];
88 struct volume_id *volume_id_open_node(int fd);
89 int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size);
90 void 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)
152 void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
153 //void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
154 //void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
155 //void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
156 void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
157 void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
158 void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
159 void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
160 void volume_id_free_buffer(struct volume_id *id);
167 //int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off);
168 //int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size);
170 //int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size);
172 int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size);
174 //int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size);
176 //int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size);
178 //int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size);
180 //int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size);
182 //int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size);
184 //int volume_id_probe_lvm1(struct volume_id *id, uint64_t off);
185 //int volume_id_probe_lvm2(struct volume_id *id, uint64_t off);
189 int volume_id_probe_cramfs(struct volume_id *id, uint64_t off);
191 int volume_id_probe_ext(struct volume_id *id, uint64_t off);
193 int volume_id_probe_vfat(struct volume_id *id, uint64_t off);
195 int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off);
197 //int volume_id_probe_hpfs(struct volume_id *id, uint64_t off);
199 int volume_id_probe_iso9660(struct volume_id *id, uint64_t off);
201 int volume_id_probe_jfs(struct volume_id *id, uint64_t off);
203 int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off);
205 int volume_id_probe_luks(struct volume_id *id, uint64_t off);
207 //int volume_id_probe_mac_partition_map(struct volume_id *id, uint64_t off);
209 //int volume_id_probe_minix(struct volume_id *id, uint64_t off);
211 //int volume_id_probe_msdos_part_table(struct volume_id *id, uint64_t off);
213 int volume_id_probe_ntfs(struct volume_id *id, uint64_t off);
215 int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off);
217 int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off);
219 int volume_id_probe_romfs(struct volume_id *id, uint64_t off);
221 int volume_id_probe_sysv(struct volume_id *id, uint64_t off);
223 int volume_id_probe_udf(struct volume_id *id, uint64_t off);
225 //int volume_id_probe_ufs(struct volume_id *id, uint64_t off);
227 int volume_id_probe_xfs(struct volume_id *id, uint64_t off);
229 #if __GNUC_PREREQ(4,1)
230 # pragma GCC visibility pop