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)
30 #define VOLUME_ID_VERSION 48
32 #define VOLUME_ID_LABEL_SIZE 64
33 #define VOLUME_ID_UUID_SIZE 36
34 #define VOLUME_ID_FORMAT_SIZE 32
35 #define VOLUME_ID_PARTITIONS_MAX 256
37 enum volume_id_usage {
42 VOLUME_ID_PARTITIONTABLE,
48 struct volume_id_partition {
49 enum volume_id_usage usage_id;
54 uint8_t partition_type_raw;
58 uint8_t label_raw[VOLUME_ID_LABEL_SIZE];
60 char label[VOLUME_ID_LABEL_SIZE+1];
61 uint8_t uuid_raw[VOLUME_ID_UUID_SIZE];
63 char uuid[VOLUME_ID_UUID_SIZE+1];
64 enum volume_id_usage usage_id;
67 char type_version[VOLUME_ID_FORMAT_SIZE];
69 struct volume_id_partition *partitions;
70 size_t partition_count;
81 struct volume_id *volume_id_open_node(const char *path);
82 int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size);
83 void free_volume_id(struct volume_id *id);
87 /* size of superblock buffer, reiserfs block is at 64k */
88 #define SB_BUFFER_SIZE 0x11000
89 /* size of seek buffer, FAT cluster is 32k max */
90 #define SEEK_BUFFER_SIZE 0x10000
92 #define bswap16(x) (uint16_t) ( \
93 (((uint16_t)(x) & 0x00ffu) << 8) | \
94 (((uint16_t)(x) & 0xff00u) >> 8))
96 #define bswap32(x) (uint32_t) ( \
97 (((uint32_t)(x) & 0xff000000u) >> 24) | \
98 (((uint32_t)(x) & 0x00ff0000u) >> 8) | \
99 (((uint32_t)(x) & 0x0000ff00u) << 8) | \
100 (((uint32_t)(x) & 0x000000ffu) << 24))
102 #define bswap64(x) (uint64_t) ( \
103 (((uint64_t)(x) & 0xff00000000000000ull) >> 56) | \
104 (((uint64_t)(x) & 0x00ff000000000000ull) >> 40) | \
105 (((uint64_t)(x) & 0x0000ff0000000000ull) >> 24) | \
106 (((uint64_t)(x) & 0x000000ff00000000ull) >> 8) | \
107 (((uint64_t)(x) & 0x00000000ff000000ull) << 8) | \
108 (((uint64_t)(x) & 0x0000000000ff0000ull) << 24) | \
109 (((uint64_t)(x) & 0x000000000000ff00ull) << 40) | \
110 (((uint64_t)(x) & 0x00000000000000ffull) << 56))
113 #define le16_to_cpu(x) (x)
114 #define le32_to_cpu(x) (x)
115 #define le64_to_cpu(x) (x)
116 #define be16_to_cpu(x) bswap16(x)
117 #define be32_to_cpu(x) bswap32(x)
118 #define cpu_to_le16(x) (x)
119 #define cpu_to_le32(x) (x)
120 #define cpu_to_be32(x) bswap32(x)
122 #define le16_to_cpu(x) bswap16(x)
123 #define le32_to_cpu(x) bswap32(x)
124 #define le64_to_cpu(x) bswap64(x)
125 #define be16_to_cpu(x) (x)
126 #define be32_to_cpu(x) (x)
127 #define cpu_to_le16(x) bswap16(x)
128 #define cpu_to_le32(x) bswap32(x)
129 #define cpu_to_be32(x) (x)
145 void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
146 void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
147 void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
148 void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
149 void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
150 void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
151 void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
152 void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
153 void volume_id_free_buffer(struct volume_id *id);
160 int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off);
161 int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size);
163 int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size);
165 int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size);
167 int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size);
169 int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size);
171 int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size);
173 int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size);
175 int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size);
177 int volume_id_probe_lvm1(struct volume_id *id, uint64_t off);
178 int volume_id_probe_lvm2(struct volume_id *id, uint64_t off);
182 int volume_id_probe_cramfs(struct volume_id *id, uint64_t off);
184 int volume_id_probe_ext(struct volume_id *id, uint64_t off);
186 int volume_id_probe_vfat(struct volume_id *id, uint64_t off);
188 int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off);
190 int volume_id_probe_hpfs(struct volume_id *id, uint64_t off);
192 int volume_id_probe_iso9660(struct volume_id *id, uint64_t off);
194 int volume_id_probe_jfs(struct volume_id *id, uint64_t off);
196 int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off);
198 int volume_id_probe_luks(struct volume_id *id, uint64_t off);
200 int volume_id_probe_mac_partition_map(struct volume_id *id, uint64_t off);
202 int volume_id_probe_minix(struct volume_id *id, uint64_t off);
204 int volume_id_probe_msdos_part_table(struct volume_id *id, uint64_t off);
206 int volume_id_probe_ntfs(struct volume_id *id, uint64_t off);
208 int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off);
210 int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off);
212 int volume_id_probe_romfs(struct volume_id *id, uint64_t off);
214 int volume_id_probe_sysv(struct volume_id *id, uint64_t off);
216 int volume_id_probe_udf(struct volume_id *id, uint64_t off);
218 int volume_id_probe_ufs(struct volume_id *id, uint64_t off);
220 int volume_id_probe_xfs(struct volume_id *id, uint64_t off);