233 lines
7.2 KiB
C
233 lines
7.2 KiB
C
/*
|
|
* 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"
|
|
|
|
#if __GNUC_PREREQ(4,1)
|
|
# pragma GCC visibility push(hidden)
|
|
#endif
|
|
|
|
#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;
|
|
// const char *type;
|
|
};
|
|
|
|
struct volume_id *volume_id_open_node(int fd);
|
|
int volume_id_probe_all(struct volume_id *id, /*uint64_t off,*/ uint64_t size);
|
|
void 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
|
|
|
|
#define bswap16(x) (uint16_t) ( \
|
|
(((uint16_t)(x) & 0x00ffu) << 8) | \
|
|
(((uint16_t)(x) & 0xff00u) >> 8))
|
|
|
|
#define bswap32(x) (uint32_t) ( \
|
|
(((uint32_t)(x) & 0xff000000u) >> 24) | \
|
|
(((uint32_t)(x) & 0x00ff0000u) >> 8) | \
|
|
(((uint32_t)(x) & 0x0000ff00u) << 8) | \
|
|
(((uint32_t)(x) & 0x000000ffu) << 24))
|
|
|
|
#define bswap64(x) (uint64_t) ( \
|
|
(((uint64_t)(x) & 0xff00000000000000ull) >> 56) | \
|
|
(((uint64_t)(x) & 0x00ff000000000000ull) >> 40) | \
|
|
(((uint64_t)(x) & 0x0000ff0000000000ull) >> 24) | \
|
|
(((uint64_t)(x) & 0x000000ff00000000ull) >> 8) | \
|
|
(((uint64_t)(x) & 0x00000000ff000000ull) << 8) | \
|
|
(((uint64_t)(x) & 0x0000000000ff0000ull) << 24) | \
|
|
(((uint64_t)(x) & 0x000000000000ff00ull) << 40) | \
|
|
(((uint64_t)(x) & 0x00000000000000ffull) << 56))
|
|
|
|
#if BB_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) bswap16(x)
|
|
#define be32_to_cpu(x) bswap32(x)
|
|
#define cpu_to_le16(x) (x)
|
|
#define cpu_to_le32(x) (x)
|
|
#define cpu_to_be32(x) bswap32(x)
|
|
#else
|
|
#define le16_to_cpu(x) bswap16(x)
|
|
#define le32_to_cpu(x) bswap32(x)
|
|
#define le64_to_cpu(x) bswap64(x)
|
|
#define be16_to_cpu(x) (x)
|
|
#define be32_to_cpu(x) (x)
|
|
#define cpu_to_le16(x) bswap16(x)
|
|
#define cpu_to_le32(x) bswap32(x)
|
|
#define cpu_to_be32(x) (x)
|
|
#endif
|
|
|
|
enum uuid_format {
|
|
UUID_DCE_STRING,
|
|
UUID_DCE,
|
|
UUID_DOS,
|
|
UUID_NTFS,
|
|
UUID_HFS,
|
|
};
|
|
|
|
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 volume_id_probe_highpoint_37x_raid(struct volume_id *id /*,uint64_t off*/);
|
|
//int volume_id_probe_highpoint_45x_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
|
|
|
//int volume_id_probe_intel_software_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
|
|
|
int volume_id_probe_linux_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
|
|
|
//int volume_id_probe_lsi_mega_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
|
|
|
//int volume_id_probe_nvidia_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
|
|
|
//int volume_id_probe_promise_fasttrack_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
|
|
|
//int volume_id_probe_silicon_medley_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
|
|
|
//int volume_id_probe_via_raid(struct volume_id *id /*,uint64_t off*/, uint64_t size);
|
|
|
|
//int volume_id_probe_lvm1(struct volume_id *id /*,uint64_t off*/);
|
|
//int volume_id_probe_lvm2(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
/* FS */
|
|
|
|
int volume_id_probe_cramfs(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_ext(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_vfat(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_hfs_hfsplus(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
//int volume_id_probe_hpfs(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_iso9660(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_jfs(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_linux_swap(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_luks(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
//int volume_id_probe_mac_partition_map(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
//int volume_id_probe_minix(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
//int volume_id_probe_msdos_part_table(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_ntfs(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_ocfs2(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_reiserfs(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_romfs(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_sysv(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_udf(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
//int volume_id_probe_ufs(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
int volume_id_probe_xfs(struct volume_id *id /*,uint64_t off*/);
|
|
|
|
#if __GNUC_PREREQ(4,1)
|
|
# pragma GCC visibility pop
|
|
#endif
|