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_
27 #define PACKED __attribute__((packed))
30 #define err(format, arg...) volume_id_log_fn(LOG_ERR, __FILE__, __LINE__, format, ##arg)
31 #define info(format, arg...) volume_id_log_fn(LOG_INFO, __FILE__, __LINE__, format, ##arg)
33 #define dbg(format, arg...) volume_id_log_fn(LOG_DEBUG, __FILE__, __LINE__, format, ##arg)
35 #define dbg(format, arg...) do { } while (0)
38 /* size of superblock buffer, reiserfs block is at 64k */
39 #define SB_BUFFER_SIZE 0x11000
40 /* size of seek buffer, FAT cluster is 32k max */
41 #define SEEK_BUFFER_SIZE 0x10000
44 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
45 #define le16_to_cpu(x) (x)
46 #define le32_to_cpu(x) (x)
47 #define le64_to_cpu(x) (x)
48 #define be16_to_cpu(x) bswap_16(x)
49 #define be32_to_cpu(x) bswap_32(x)
50 #define cpu_to_le16(x) (x)
51 #define cpu_to_le32(x) (x)
52 #define cpu_to_be32(x) bswap_32(x)
53 #elif (__BYTE_ORDER == __BIG_ENDIAN)
54 #define le16_to_cpu(x) bswap_16(x)
55 #define le32_to_cpu(x) bswap_32(x)
56 #define le64_to_cpu(x) bswap_64(x)
57 #define be16_to_cpu(x) (x)
58 #define be32_to_cpu(x) (x)
59 #define cpu_to_le16(x) bswap_16(x)
60 #define cpu_to_le32(x) bswap_32(x)
61 #define cpu_to_be32(x) (x)
63 #endif /* __BYTE_ORDER */
79 extern void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
80 extern void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
81 extern void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
82 extern void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
83 extern void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
84 extern void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
85 extern uint8_t *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
86 extern void volume_id_free_buffer(struct volume_id *id);
88 #endif /* _VOLUME_ID_UTIL_ */