2 * volume_id - reads filesystem label and uuid
4 * Copyright (C) 2005-2006 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_
26 #define err(format, arg...) volume_id_log(LOG_ERR, __FILE__, __LINE__, format, ##arg)
27 #define info(format, arg...) volume_id_log(LOG_INFO, __FILE__, __LINE__, format, ##arg)
29 #define dbg(format, arg...) volume_id_log(LOG_DEBUG, __FILE__, __LINE__, format, ##arg)
31 #define dbg(format, arg...) do { } while (0)
34 /* size of superblock buffer, reiserfs block is at 64k */
35 #define SB_BUFFER_SIZE 0x11000
36 /* size of seek buffer, FAT cluster is 32k max */
37 #define SEEK_BUFFER_SIZE 0x10000
40 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
41 #define le16_to_cpu(x) (x)
42 #define le32_to_cpu(x) (x)
43 #define le64_to_cpu(x) (x)
44 #define be16_to_cpu(x) bswap_16(x)
45 #define be32_to_cpu(x) bswap_32(x)
46 #define cpu_to_le16(x) (x)
47 #define cpu_to_le32(x) (x)
48 #define cpu_to_be32(x) bswap_32(x)
49 #elif (__BYTE_ORDER == __BIG_ENDIAN)
50 #define le16_to_cpu(x) bswap_16(x)
51 #define le32_to_cpu(x) bswap_32(x)
52 #define le64_to_cpu(x) bswap_64(x)
53 #define be16_to_cpu(x) (x)
54 #define be32_to_cpu(x) (x)
55 #define cpu_to_le16(x) bswap_16(x)
56 #define cpu_to_le32(x) bswap_32(x)
57 #define cpu_to_be32(x) (x)
59 #endif /* __BYTE_ORDER */
74 extern void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
75 extern void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
76 extern void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
77 extern void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
78 extern void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
79 extern void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
80 extern uint8_t *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
81 extern void volume_id_free_buffer(struct volume_id *id);
83 #endif /* _VOLUME_ID_UTIL_ */