/* * volume_id - reads volume label and uuid * * Copyright (C) 2005-2007 Kay Sievers * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #ifndef _LIBVOLUME_ID_PRIVATE_H_ #define _LIBVOLUME_ID_PRIVATE_H_ #include #include #include #include #include #include #include "libvolume_id.h" #define ALLOWED_CHARS "#+-.:=@_" #ifndef PACKED #define PACKED __attribute__((packed)) #endif static inline void __attribute__ ((format(printf, 1, 2))) log_null(const char *format, ...) {} #define err(format, arg...) volume_id_log_fn(LOG_ERR, __FILE__, __LINE__, format, ##arg) #define info(format, arg...) volume_id_log_fn(LOG_INFO, __FILE__, __LINE__, format, ##arg) #ifdef DEBUG #define dbg(format, arg...) volume_id_log_fn(LOG_DEBUG, __FILE__, __LINE__, format, ##arg) #else #define dbg(format, arg...) log_null(format, ##arg) #endif #if (__BYTE_ORDER == __LITTLE_ENDIAN) #define le16_to_cpu(x) (x) #define le32_to_cpu(x) (x) #define le64_to_cpu(x) (x) #define be16_to_cpu(x) bswap_16(x) #define be32_to_cpu(x) bswap_32(x) #define cpu_to_le16(x) (x) #define cpu_to_le32(x) (x) #define cpu_to_be32(x) bswap_32(x) #elif (__BYTE_ORDER == __BIG_ENDIAN) #define le16_to_cpu(x) bswap_16(x) #define le32_to_cpu(x) bswap_32(x) #define le64_to_cpu(x) bswap_64(x) #define be16_to_cpu(x) (x) #define be32_to_cpu(x) (x) #define cpu_to_le16(x) bswap_16(x) #define cpu_to_le32(x) bswap_32(x) #define cpu_to_be32(x) (x) #endif /* __BYTE_ORDER */ enum uuid_format { UUID_STRING, UUID_HEX_STRING, UUID_DCE, UUID_DOS, UUID_64BIT_LE, UUID_MD, UUID_LVM, }; enum endian { LE = 0, BE = 1 }; #define VOLUME_ID_LABEL_SIZE 64 #define VOLUME_ID_UUID_SIZE 36 #define VOLUME_ID_FORMAT_SIZE 32 #define VOLUME_ID_PATH_MAX 256 #define VOLUME_ID_PARTITIONS_MAX 256 /* size of superblock buffer, reiserfs block is at 64k */ #define SB_BUFFER_SIZE 0x11000 /* size of seek buffer, FAT cluster is 32k max */ #define SEEK_BUFFER_SIZE 0x10000 enum volume_id_usage { VOLUME_ID_UNUSED, VOLUME_ID_UNPROBED, VOLUME_ID_OTHER, VOLUME_ID_FILESYSTEM, VOLUME_ID_RAID, VOLUME_ID_DISKLABEL, VOLUME_ID_CRYPTO, }; struct volume_id { uint8_t label_raw[VOLUME_ID_LABEL_SIZE]; size_t label_raw_len; char label[VOLUME_ID_LABEL_SIZE+1]; uint8_t uuid_raw[VOLUME_ID_UUID_SIZE]; size_t uuid_raw_len; char uuid[VOLUME_ID_UUID_SIZE+1]; enum volume_id_usage usage_id; char *usage; char *type; char type_version[VOLUME_ID_FORMAT_SIZE]; int fd; uint8_t *sbbuf; size_t sbbuf_len; uint8_t *seekbuf; uint64_t seekbuf_off; size_t seekbuf_len; }; /* utils */ extern int volume_id_utf8_encoded_valid_unichar(const char *str); extern size_t volume_id_set_unicode16(uint8_t *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count); extern void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id); extern void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count); extern void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count); extern void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count); extern void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, size_t len, enum uuid_format format); extern uint8_t *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len); extern void volume_id_free_buffer(struct volume_id *id); /* filesystems */ extern int volume_id_probe_cramfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_ext(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_vfat(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_hpfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_iso9660(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_jfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_minix(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_ntfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_ocfs1(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_romfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_sysv(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_udf(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_ufs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_vxfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_xfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_squashfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_netware(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_gfs(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_gfs2(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_btrfs(struct volume_id *id, uint64_t off, uint64_t size); /* special formats */ extern int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_luks(struct volume_id *id, uint64_t off, uint64_t size); /* raid */ extern int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_lvm1(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_lvm2(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_ddf_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_oracleasm(struct volume_id *id, uint64_t off, uint64_t size); /* bios raid */ extern int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_adaptec_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_jmicron_raid(struct volume_id *id, uint64_t off, uint64_t size); #endif