2 * volume_id - reads filesystem label and uuid
4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation version 2 of the License.
11 #ifndef _VOLUME_ID_UTIL_
12 #define _VOLUME_ID_UTIL_
25 /* size of superblock buffer, reiserfs block is at 64k */
26 #define SB_BUFFER_SIZE 0x11000
27 /* size of seek buffer, FAT cluster is 32k max */
28 #define SEEK_BUFFER_SIZE 0x10000
31 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
32 #define le16_to_cpu(x) (x)
33 #define le32_to_cpu(x) (x)
34 #define le64_to_cpu(x) (x)
35 #define be16_to_cpu(x) bswap_16(x)
36 #define be32_to_cpu(x) bswap_32(x)
37 #define cpu_to_le16(x) (x)
38 #define cpu_to_le32(x) (x)
39 #define cpu_to_be32(x) bswap_32(x)
40 #elif (__BYTE_ORDER == __BIG_ENDIAN)
41 #define le16_to_cpu(x) bswap_16(x)
42 #define le32_to_cpu(x) bswap_32(x)
43 #define le64_to_cpu(x) bswap_64(x)
44 #define be16_to_cpu(x) (x)
45 #define be32_to_cpu(x) (x)
46 #define cpu_to_le16(x) bswap_16(x)
47 #define cpu_to_le32(x) bswap_32(x)
48 #define cpu_to_be32(x) (x)
50 #endif /* __BYTE_ORDER */
65 extern void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
66 extern void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
67 extern void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
68 extern void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
69 extern void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
70 extern void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
71 extern void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
72 extern uint8_t *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
73 extern void volume_id_free_buffer(struct volume_id *id);
75 #endif /* _VOLUME_ID_UTIL_ */