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hush/util-linux/volume_id/volume_id_internal.h
Mike Frysinger e0942acb9e blkid: add bcache support 
URL: https://bugs.gentoo.org/508596
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2015-12-16 14:42:25 -05:00

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/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "libbb.h"
#include "volume_id.h"
PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
#define dbg(...) ((void)0)
/* #define dbg(...) bb_error_msg(__VA_ARGS__) */
/* volume_id.h */
#define VOLUME_ID_VERSION 48
#define VOLUME_ID_LABEL_SIZE 64
#define VOLUME_ID_UUID_SIZE 36
#define VOLUME_ID_FORMAT_SIZE 32
#define VOLUME_ID_PARTITIONS_MAX 256
enum volume_id_usage {
VOLUME_ID_UNUSED,
VOLUME_ID_UNPROBED,
VOLUME_ID_OTHER,
VOLUME_ID_FILESYSTEM,
VOLUME_ID_PARTITIONTABLE,
VOLUME_ID_RAID,
VOLUME_ID_DISKLABEL,
VOLUME_ID_CRYPTO,
};
#ifdef UNUSED_PARTITION_CODE
struct volume_id_partition {
// const char *type;
// const char *usage;
// smallint usage_id;
// uint8_t pt_type_raw;
// uint64_t pt_off;
// uint64_t pt_len;
};
#endif
struct volume_id {
int fd;
// int fd_close:1;
int error;
size_t sbbuf_len;
size_t seekbuf_len;
uint8_t *sbbuf;
uint8_t *seekbuf;
uint64_t seekbuf_off;
#ifdef UNUSED_PARTITION_CODE
struct volume_id_partition *partitions;
size_t partition_count;
#endif
// 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;
/* uuid is stored in ASCII (not binary) form here: */
char uuid[VOLUME_ID_UUID_SIZE+1];
// char type_version[VOLUME_ID_FORMAT_SIZE];
// smallint usage_id;
// const char *usage;
#if ENABLE_FEATURE_BLKID_TYPE
const char *type;
#endif
};
struct volume_id* FAST_FUNC volume_id_open_node(int fd);
int FAST_FUNC volume_id_probe_all(struct volume_id *id, /*uint64_t off,*/ uint64_t size);
void FAST_FUNC free_volume_id(struct volume_id *id);
/* util.h */
/* 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
#if BB_LITTLE_ENDIAN
# define le16_to_cpu(x) (uint16_t)(x)
# define le32_to_cpu(x) (uint32_t)(x)
# define le64_to_cpu(x) (uint64_t)(x)
# define be16_to_cpu(x) (uint16_t)(bswap_16(x))
# define be32_to_cpu(x) (uint32_t)(bswap_32(x))
# define cpu_to_le16(x) (uint16_t)(x)
# define cpu_to_le32(x) (uint32_t)(x)
# define cpu_to_be32(x) (uint32_t)(bswap_32(x))
#else
# define le16_to_cpu(x) (uint16_t)(bswap_16(x))
# define le32_to_cpu(x) (uint32_t)(bswap_32(x))
# define le64_to_cpu(x) (uint64_t)(bb_bswap_64(x))
# define be16_to_cpu(x) (uint16_t)(x)
# define be32_to_cpu(x) (uint32_t)(x)
# define cpu_to_le16(x) (uint16_t)(bswap_16(x))
# define cpu_to_le32(x) (uint32_t)(bswap_32(x))
# define cpu_to_be32(x) (uint32_t)(x)
#endif
/* volume_id_set_uuid(id,buf,fmt) assumes size of uuid buf
* by shifting: 4 << fmt, except for fmt == UUID_DCE_STRING.
* The constants below should match sizes.
*/
enum uuid_format {
UUID_DOS = 0, /* 4 bytes */
UUID_NTFS = 1, /* 8 bytes */
UUID_DCE = 2, /* 16 bytes */
UUID_DCE_STRING = 3, /* 36 bytes (VOLUME_ID_UUID_SIZE) */
};
enum endian {
LE = 0,
BE = 1
};
void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count);
//void volume_id_set_usage(struct volume_id *id, enum volume_id_usage usage_id);
//void volume_id_set_usage_part(struct volume_id_partition *part, enum volume_id_usage usage_id);
//void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count);
void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count);
void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count);
void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, enum uuid_format format);
void *volume_id_get_buffer(struct volume_id *id, uint64_t off, size_t len);
void volume_id_free_buffer(struct volume_id *id);
/* Probe routines */
/* RAID */
//int FAST_FUNC volume_id_probe_highpoint_37x_raid(struct volume_id *id /*,uint64_t off*/);
//int FAST_FUNC volume_id_probe_highpoint_45x_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
//int FAST_FUNC volume_id_probe_intel_software_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
int FAST_FUNC volume_id_probe_linux_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
//int FAST_FUNC volume_id_probe_lsi_mega_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
//int FAST_FUNC volume_id_probe_nvidia_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
//int FAST_FUNC volume_id_probe_promise_fasttrack_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
//int FAST_FUNC volume_id_probe_silicon_medley_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
//int FAST_FUNC volume_id_probe_via_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
//int FAST_FUNC volume_id_probe_lvm1(struct volume_id *id /*,uint64_t off*/);
//int FAST_FUNC volume_id_probe_lvm2(struct volume_id *id /*,uint64_t off*/);
/* FS */
int FAST_FUNC volume_id_probe_bcache(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_btrfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_cramfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_ext(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_vfat(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_hfs_hfsplus(struct volume_id *id /*,uint64_t off*/);
//int FAST_FUNC volume_id_probe_hpfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_iso9660(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_jfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_linux_swap(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_luks(struct volume_id *id /*,uint64_t off*/);
//int FAST_FUNC volume_id_probe_mac_partition_map(struct volume_id *id /*,uint64_t off*/);
//int FAST_FUNC volume_id_probe_minix(struct volume_id *id /*,uint64_t off*/);
//int FAST_FUNC volume_id_probe_msdos_part_table(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_f2fs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_nilfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_ntfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_exfat(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_ocfs2(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_reiserfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_romfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_squashfs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_sysv(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_udf(struct volume_id *id /*,uint64_t off*/);
//int FAST_FUNC volume_id_probe_ufs(struct volume_id *id /*,uint64_t off*/);
int FAST_FUNC volume_id_probe_xfs(struct volume_id *id /*,uint64_t off*/);
POP_SAVED_FUNCTION_VISIBILITY
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