projects / thirdparty / systemd.git / blame
| Commit | Line | Data |
|---|---|---|
| 3611d582 KS |
1 | /* |
| 2 | * volume_id - reads partition label and uuid | |
| 3 | * | |
| c033fd9f | 4 | * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> |
| 3611d582 | 5 | * |
| 599b6261 KS |
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. | |
| 3611d582 | 10 | * |
| 599b6261 KS |
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 | |
| 3611d582 KS |
19 | */ |
| 20 | ||
| 21 | #ifndef _VOLUME_ID_H_ | |
| 22 | #define _VOLUME_ID_H_ | |
| 23 | ||
| c033fd9f | 24 | #define VOLUME_ID_VERSION 31 |
| 3611d582 | 25 | |
| b99f344f | 26 | #define VOLUME_ID_LABEL_SIZE 64 |
| 3611d582 KS |
27 | #define VOLUME_ID_UUID_SIZE 16 |
| 28 | #define VOLUME_ID_UUID_STRING_SIZE 37 | |
| c506c408 KS |
29 | #define VOLUME_ID_FORMAT_SIZE 32 |
| 30 | #define VOLUME_ID_PATH_MAX 256 | |
| 240ce551 | 31 | #define VOLUME_ID_PARTITIONS_MAX 256 |
| 3611d582 | 32 | |
| c506c408 KS |
33 | enum volume_id_usage { |
| 34 | VOLUME_ID_UNUSED, | |
| 35 | VOLUME_ID_UNPROBED, | |
| 36 | VOLUME_ID_OTHER, | |
| 37 | VOLUME_ID_FILESYSTEM, | |
| 38 | VOLUME_ID_PARTITIONTABLE, | |
| a5d00f9d | 39 | VOLUME_ID_RAID, |
| c033fd9f | 40 | VOLUME_ID_DISKLABEL, |
| c506c408 | 41 | }; |
| 3611d582 | 42 | |
| c506c408 KS |
43 | struct volume_id_partition { |
| 44 | enum volume_id_usage usage_id; | |
| c033fd9f | 45 | char *usage; |
| c506c408 KS |
46 | char *type; |
| 47 | unsigned long long off; | |
| 48 | unsigned long long len; | |
| 33eae955 | 49 | unsigned int partition_type_raw; |
| 3611d582 KS |
50 | }; |
| 51 | ||
| 52 | struct volume_id { | |
| b99f344f KS |
53 | unsigned char label_raw[VOLUME_ID_LABEL_SIZE]; |
| 54 | unsigned int label_raw_len; | |
| c506c408 KS |
55 | char label[VOLUME_ID_LABEL_SIZE+1]; |
| 56 | unsigned char uuid_raw[VOLUME_ID_UUID_SIZE]; | |
| 57 | char uuid[VOLUME_ID_UUID_STRING_SIZE]; | |
| 58 | enum volume_id_usage usage_id; | |
| c033fd9f | 59 | char *usage; |
| c506c408 KS |
60 | char *type; |
| 61 | char type_version[VOLUME_ID_FORMAT_SIZE]; | |
| c033fd9f | 62 | |
| c506c408 KS |
63 | struct volume_id_partition *partitions; |
| 64 | unsigned int partition_count; | |
| c033fd9f | 65 | |
| 599b6261 | 66 | int fd; |
| b99f344f KS |
67 | unsigned char *sbbuf; |
| 68 | unsigned int sbbuf_len; | |
| 69 | unsigned char *seekbuf; | |
| c506c408 | 70 | unsigned long long seekbuf_off; |
| b99f344f | 71 | unsigned int seekbuf_len; |
| 599b6261 | 72 | int fd_close; |
| 3611d582 KS |
73 | }; |
| 74 | ||
| 3611d582 | 75 | extern struct volume_id *volume_id_open_fd(int fd); |
| 3611d582 | 76 | extern struct volume_id *volume_id_open_node(const char *path); |
| 3611d582 | 77 | extern struct volume_id *volume_id_open_dev_t(dev_t devt); |
| c033fd9f | 78 | extern int volume_id_probe_all(struct volume_id *id, unsigned long long off, unsigned long long size); |
| 3611d582 KS |
79 | extern void volume_id_close(struct volume_id *id); |
| 80 | ||
| 81 | #endif |