2 * volume_id - reads partition label and uuid
4 * Copyright (C) 2004 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
24 #define VOLUME_ID_VERSION 002
26 #define VOLUME_ID_LABEL_SIZE 32
27 #define VOLUME_ID_UUID_SIZE 16
28 #define VOLUME_ID_UUID_STRING_SIZE 37
29 #define VOLUME_ID_PATH_MAX 255
32 enum filesystem_type {
48 char label_raw[VOLUME_ID_LABEL_SIZE];
50 char label_string[VOLUME_ID_LABEL_SIZE+1];
51 unsigned char uuid[VOLUME_ID_UUID_SIZE];
52 char uuid_string[VOLUME_ID_UUID_STRING_SIZE];
53 enum filesystem_type fs_type;
64 /* open volume by already open file descriptor */
65 extern struct volume_id *volume_id_open_fd(int fd);
67 /* open volume by device node */
68 extern struct volume_id *volume_id_open_node(const char *path);
70 /* open volume by major/minor */
71 extern struct volume_id *volume_id_open_dev_t(dev_t devt);
73 /* probe volume for filesystem type and try to read label/uuid */
74 extern int volume_id_probe(struct volume_id *id, enum filesystem_type fs_type);
76 /* free allocated device info */
77 extern void volume_id_close(struct volume_id *id);