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"
25 #define dbg(...) ((void)0)
26 /* #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;
61 // uint8_t label_raw[VOLUME_ID_LABEL_SIZE];
62 // size_t label_raw_len;
63 char label[VOLUME_ID_LABEL_SIZE+1];
64 // uint8_t uuid_raw[VOLUME_ID_UUID_SIZE];
65 // size_t uuid_raw_len;
66 /* uuid is stored in ASCII (not binary) form here: */
67 char uuid[VOLUME_ID_UUID_SIZE+1];
68 // char type_version[VOLUME_ID_FORMAT_SIZE];
73 #ifdef UNUSED_PARTITION_CODE
74 struct volume_id_partition *partitions;
75 size_t partition_count;
87 struct volume_id *volume_id_open_node(const char *path);
88 int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size);
89 void free_volume_id(struct volume_id *id);
93 /* size of superblock buffer, reiserfs block is at 64k */
94 #define SB_BUFFER_SIZE 0x11000
95 /* size of seek buffer, FAT cluster is 32k max */
96 #define SEEK_BUFFER_SIZE 0x10000
98 #define bswap16(x) (uint16_t) ( \
99 (((uint16_t)(x) & 0x00ffu) << 8) | \
100 (((uint16_t)(x) & 0xff00u) >> 8))
102 #define bswap32(x) (uint32_t) ( \
103 (((uint32_t)(x) & 0xff000000u) >> 24) | \
104 (((uint32_t)(x) & 0x00ff0000u) >> 8) | \
105 (((uint32_t)(x) & 0x0000ff00u) << 8) | \
106 (((uint32_t)(x) & 0x000000ffu) << 24))
108 #define bswap64(x) (uint64_t) ( \
109 (((uint64_t)(x) & 0xff00000000000000ull) >> 56) | \
110 (((uint64_t)(x) & 0x00ff000000000000ull) >> 40) | \
111 (((uint64_t)(x) & 0x0000ff0000000000ull) >> 24) | \
112 (((uint64_t)(x) & 0x000000ff00000000ull) >> 8) | \
113 (((uint64_t)(x) & 0x00000000ff000000ull) << 8) | \
114 (((uint64_t)(x) & 0x0000000000ff0000ull) << 24) | \
115 (((uint64_t)(x) & 0x000000000000ff00ull) << 40) | \
116 (((uint64_t)(x) & 0x00000000000000ffull) << 56))
119 #define le16_to_cpu(x) (x)
120 #define le32_to_cpu(x) (x)
121 #define le64_to_cpu(x) (x)
122 #define be16_to_cpu(x) bswap16(x)
123 #define be32_to_cpu(x) bswap32(x)
124 #define cpu_to_le16(x) (x)
125 #define cpu_to_le32(x) (x)
126 #define cpu_to_be32(x) bswap32(x)
128 #define le16_to_cpu(x) bswap16(x)
129 #define le32_to_cpu(x) bswap32(x)
130 #define le64_to_cpu(x) bswap64(x)
131 #define be16_to_cpu(x) (x)
132 #define be32_to_cpu(x) (x)
133 #define cpu_to_le16(x) bswap16(x)
134 #define cpu_to_le32(x) bswap32(x)
135 #define cpu_to_be32(x) (x)
151 void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
152 //void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
153 //void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
154 //void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
155 void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
156 void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
157 void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
158 void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
159 void volume_id_free_buffer(struct volume_id *id);
166 //int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off);
167 //int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size);
169 //int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size);
171 int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size);
173 //int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size);
175 //int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size);
177 //int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size);
179 //int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size);
181 //int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size);
183 //int volume_id_probe_lvm1(struct volume_id *id, uint64_t off);
184 //int volume_id_probe_lvm2(struct volume_id *id, uint64_t off);
188 int volume_id_probe_cramfs(struct volume_id *id, uint64_t off);
190 int volume_id_probe_ext(struct volume_id *id, uint64_t off);
192 int volume_id_probe_vfat(struct volume_id *id, uint64_t off);
194 int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off);
196 //int volume_id_probe_hpfs(struct volume_id *id, uint64_t off);
198 int volume_id_probe_iso9660(struct volume_id *id, uint64_t off);
200 int volume_id_probe_jfs(struct volume_id *id, uint64_t off);
202 int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off);
204 int volume_id_probe_luks(struct volume_id *id, uint64_t off);
206 //int volume_id_probe_mac_partition_map(struct volume_id *id, uint64_t off);
208 //int volume_id_probe_minix(struct volume_id *id, uint64_t off);
210 //int volume_id_probe_msdos_part_table(struct volume_id *id, uint64_t off);
212 int volume_id_probe_ntfs(struct volume_id *id, uint64_t off);
214 int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off);
216 int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off);
218 int volume_id_probe_romfs(struct volume_id *id, uint64_t off);
220 int volume_id_probe_sysv(struct volume_id *id, uint64_t off);
222 int volume_id_probe_udf(struct volume_id *id, uint64_t off);
224 //int volume_id_probe_ufs(struct volume_id *id, uint64_t off);
226 int volume_id_probe_xfs(struct volume_id *id, uint64_t off);