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 |
|
---|
24 | PUSH_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 |
|
---|
38 | enum 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
|
---|
50 | struct 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 |
|
---|
60 | struct 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 | // const char *type;
|
---|
84 | };
|
---|
85 |
|
---|
86 | struct volume_id* FAST_FUNC volume_id_open_node(int fd);
|
---|
87 | int FAST_FUNC volume_id_probe_all(struct volume_id *id, /*uint64_t off,*/ uint64_t size);
|
---|
88 | void FAST_FUNC free_volume_id(struct volume_id *id);
|
---|
89 |
|
---|
90 | /* util.h */
|
---|
91 |
|
---|
92 | /* size of superblock buffer, reiserfs block is at 64k */
|
---|
93 | #define SB_BUFFER_SIZE 0x11000
|
---|
94 | /* size of seek buffer, FAT cluster is 32k max */
|
---|
95 | #define SEEK_BUFFER_SIZE 0x10000
|
---|
96 |
|
---|
97 | #define bswap16(x) (uint16_t) ( \
|
---|
98 | (((uint16_t)(x) & 0x00ffu) << 8) | \
|
---|
99 | (((uint16_t)(x) & 0xff00u) >> 8))
|
---|
100 |
|
---|
101 | #define bswap32(x) (uint32_t) ( \
|
---|
102 | (((uint32_t)(x) & 0xff000000u) >> 24) | \
|
---|
103 | (((uint32_t)(x) & 0x00ff0000u) >> 8) | \
|
---|
104 | (((uint32_t)(x) & 0x0000ff00u) << 8) | \
|
---|
105 | (((uint32_t)(x) & 0x000000ffu) << 24))
|
---|
106 |
|
---|
107 | #define bswap64(x) (uint64_t) ( \
|
---|
108 | (((uint64_t)(x) & 0xff00000000000000ull) >> 56) | \
|
---|
109 | (((uint64_t)(x) & 0x00ff000000000000ull) >> 40) | \
|
---|
110 | (((uint64_t)(x) & 0x0000ff0000000000ull) >> 24) | \
|
---|
111 | (((uint64_t)(x) & 0x000000ff00000000ull) >> 8) | \
|
---|
112 | (((uint64_t)(x) & 0x00000000ff000000ull) << 8) | \
|
---|
113 | (((uint64_t)(x) & 0x0000000000ff0000ull) << 24) | \
|
---|
114 | (((uint64_t)(x) & 0x000000000000ff00ull) << 40) | \
|
---|
115 | (((uint64_t)(x) & 0x00000000000000ffull) << 56))
|
---|
116 |
|
---|
117 | #if BB_LITTLE_ENDIAN
|
---|
118 | #define le16_to_cpu(x) (x)
|
---|
119 | #define le32_to_cpu(x) (x)
|
---|
120 | #define le64_to_cpu(x) (x)
|
---|
121 | #define be16_to_cpu(x) bswap16(x)
|
---|
122 | #define be32_to_cpu(x) bswap32(x)
|
---|
123 | #define cpu_to_le16(x) (x)
|
---|
124 | #define cpu_to_le32(x) (x)
|
---|
125 | #define cpu_to_be32(x) bswap32(x)
|
---|
126 | #else
|
---|
127 | #define le16_to_cpu(x) bswap16(x)
|
---|
128 | #define le32_to_cpu(x) bswap32(x)
|
---|
129 | #define le64_to_cpu(x) bswap64(x)
|
---|
130 | #define be16_to_cpu(x) (x)
|
---|
131 | #define be32_to_cpu(x) (x)
|
---|
132 | #define cpu_to_le16(x) bswap16(x)
|
---|
133 | #define cpu_to_le32(x) bswap32(x)
|
---|
134 | #define cpu_to_be32(x) (x)
|
---|
135 | #endif
|
---|
136 |
|
---|
137 | enum uuid_format {
|
---|
138 | UUID_DCE_STRING,
|
---|
139 | UUID_DCE,
|
---|
140 | UUID_DOS,
|
---|
141 | UUID_NTFS,
|
---|
142 | UUID_HFS,
|
---|
143 | };
|
---|
144 |
|
---|
145 | enum endian {
|
---|
146 | LE = 0,
|
---|
147 | BE = 1
|
---|
148 | };
|
---|
149 |
|
---|
150 | void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
|
---|
151 | //void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
|
---|
152 | //void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
|
---|
153 | //void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
|
---|
154 | void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
|
---|
155 | void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
|
---|
156 | void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
|
---|
157 | void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
|
---|
158 | void volume_id_free_buffer(struct volume_id *id);
|
---|
159 |
|
---|
160 |
|
---|
161 | /* Probe routines */
|
---|
162 |
|
---|
163 | /* RAID */
|
---|
164 |
|
---|
165 | //int FAST_FUNC volume_id_probe_highpoint_37x_raid(struct volume_id *id /*,uint64_t off*/);
|
---|
166 | //int FAST_FUNC volume_id_probe_highpoint_45x_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
---|
167 |
|
---|
168 | //int FAST_FUNC volume_id_probe_intel_software_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
---|
169 |
|
---|
170 | int FAST_FUNC volume_id_probe_linux_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
---|
171 |
|
---|
172 | //int FAST_FUNC volume_id_probe_lsi_mega_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
---|
173 |
|
---|
174 | //int FAST_FUNC volume_id_probe_nvidia_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
---|
175 |
|
---|
176 | //int FAST_FUNC volume_id_probe_promise_fasttrack_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
---|
177 |
|
---|
178 | //int FAST_FUNC volume_id_probe_silicon_medley_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
---|
179 |
|
---|
180 | //int FAST_FUNC volume_id_probe_via_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
---|
181 |
|
---|
182 | //int FAST_FUNC volume_id_probe_lvm1(struct volume_id *id /*,uint64_t off*/);
|
---|
183 | //int FAST_FUNC volume_id_probe_lvm2(struct volume_id *id /*,uint64_t off*/);
|
---|
184 |
|
---|
185 | /* FS */
|
---|
186 |
|
---|
187 | int FAST_FUNC volume_id_probe_btrfs(struct volume_id *id /*,uint64_t off*/);
|
---|
188 |
|
---|
189 | int FAST_FUNC volume_id_probe_cramfs(struct volume_id *id /*,uint64_t off*/);
|
---|
190 |
|
---|
191 | int FAST_FUNC volume_id_probe_ext(struct volume_id *id /*,uint64_t off*/);
|
---|
192 |
|
---|
193 | int FAST_FUNC volume_id_probe_vfat(struct volume_id *id /*,uint64_t off*/);
|
---|
194 |
|
---|
195 | int FAST_FUNC volume_id_probe_hfs_hfsplus(struct volume_id *id /*,uint64_t off*/);
|
---|
196 |
|
---|
197 | //int FAST_FUNC volume_id_probe_hpfs(struct volume_id *id /*,uint64_t off*/);
|
---|
198 |
|
---|
199 | int FAST_FUNC volume_id_probe_iso9660(struct volume_id *id /*,uint64_t off*/);
|
---|
200 |
|
---|
201 | int FAST_FUNC volume_id_probe_jfs(struct volume_id *id /*,uint64_t off*/);
|
---|
202 |
|
---|
203 | int FAST_FUNC volume_id_probe_linux_swap(struct volume_id *id /*,uint64_t off*/);
|
---|
204 |
|
---|
205 | int FAST_FUNC volume_id_probe_luks(struct volume_id *id /*,uint64_t off*/);
|
---|
206 |
|
---|
207 | //int FAST_FUNC volume_id_probe_mac_partition_map(struct volume_id *id /*,uint64_t off*/);
|
---|
208 |
|
---|
209 | //int FAST_FUNC volume_id_probe_minix(struct volume_id *id /*,uint64_t off*/);
|
---|
210 |
|
---|
211 | //int FAST_FUNC volume_id_probe_msdos_part_table(struct volume_id *id /*,uint64_t off*/);
|
---|
212 |
|
---|
213 | int FAST_FUNC volume_id_probe_ntfs(struct volume_id *id /*,uint64_t off*/);
|
---|
214 |
|
---|
215 | int FAST_FUNC volume_id_probe_ocfs2(struct volume_id *id /*,uint64_t off*/);
|
---|
216 |
|
---|
217 | int FAST_FUNC volume_id_probe_reiserfs(struct volume_id *id /*,uint64_t off*/);
|
---|
218 |
|
---|
219 | int FAST_FUNC volume_id_probe_romfs(struct volume_id *id /*,uint64_t off*/);
|
---|
220 |
|
---|
221 | int FAST_FUNC volume_id_probe_sysv(struct volume_id *id /*,uint64_t off*/);
|
---|
222 |
|
---|
223 | int FAST_FUNC volume_id_probe_udf(struct volume_id *id /*,uint64_t off*/);
|
---|
224 |
|
---|
225 | //int FAST_FUNC volume_id_probe_ufs(struct volume_id *id /*,uint64_t off*/);
|
---|
226 |
|
---|
227 | int FAST_FUNC volume_id_probe_xfs(struct volume_id *id /*,uint64_t off*/);
|
---|
228 |
|
---|
229 | POP_SAVED_FUNCTION_VISIBILITY
|
---|