diff options
Diffstat (limited to 'util-linux/volume_id/volume_id_internal.h')
| -rw-r--r-- | util-linux/volume_id/volume_id_internal.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/util-linux/volume_id/volume_id_internal.h b/util-linux/volume_id/volume_id_internal.h new file mode 100644 index 0000000..5a38562 --- /dev/null +++ b/util-linux/volume_id/volume_id_internal.h @@ -0,0 +1,220 @@ +/* + * 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" + + +#define dbg(...) ((void)0) + + +/* 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, +}; + +struct volume_id_partition { + enum volume_id_usage usage_id; + const char *usage; + const char *type; + uint64_t off; + uint64_t len; + uint8_t partition_type_raw; +}; + +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; + const char *usage; + const char *type; + char type_version[VOLUME_ID_FORMAT_SIZE]; + + struct volume_id_partition *partitions; + size_t partition_count; + + int fd; + uint8_t *sbbuf; + uint8_t *seekbuf; + size_t sbbuf_len; + uint64_t seekbuf_off; + size_t seekbuf_len; +// int fd_close:1; +}; + +struct volume_id *volume_id_open_node(const char *path); +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); |