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b10941c08d
Needed for mount(8) to lookup LABEL=* in /dev/disk/by-label/*. Characters not suited for a filename will be escaped and the encoded LABEL=* string is able to find the corresponding symlink.
136 lines
6.3 KiB
C
136 lines
6.3 KiB
C
/*
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* volume_id - reads volume label and uuid
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*
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* Copyright (C) 2005-2007 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*/
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#ifndef _LIBVOLUME_ID_H_
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#define _LIBVOLUME_ID_H_
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#include <stdint.h>
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#include <stddef.h>
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typedef void (*volume_id_log_fn_t)(int priority, const char *file, int line, const char *format, ...)
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__attribute__ ((format(printf, 4, 5)));
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extern volume_id_log_fn_t volume_id_log_fn;
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struct volume_id;
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typedef int (*volume_id_probe_fn_t)(struct volume_id *id, uint64_t off, uint64_t size);
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typedef int (*all_probers_fn_t)(volume_id_probe_fn_t probe_fn,
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struct volume_id *id, uint64_t off, uint64_t size,
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void *data);
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extern struct volume_id *volume_id_open_fd(int fd);
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extern void volume_id_close(struct volume_id *id);
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extern int volume_id_probe_filesystem(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size);
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extern const volume_id_probe_fn_t *volume_id_get_prober_by_type(const char *type);
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extern void volume_id_all_probers(all_probers_fn_t all_probers_fn,
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struct volume_id *id, uint64_t off, uint64_t size,
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void *data);
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extern int volume_id_get_label(struct volume_id *id, const char **label);
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extern int volume_id_get_label_raw(struct volume_id *id, const uint8_t **label, size_t *len);
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extern int volume_id_get_uuid(struct volume_id *id, const char **uuid);
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extern int volume_id_get_uuid_raw(struct volume_id *id, const uint8_t **uuid, size_t *len);
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extern int volume_id_get_usage(struct volume_id *id, const char **usage);
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extern int volume_id_get_type(struct volume_id *id, const char **type);
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extern int volume_id_get_type_version(struct volume_id *id, const char **type_version);
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extern int volume_id_encode_string(const char *str, char *str_enc, size_t len);
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/*
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* Note: everything below will be made private or removed from
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* a future version, and a new major release of libvolume_id
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*/
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extern struct volume_id *volume_id_open_node(const char *path);
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#define VOLUME_ID_LABEL_SIZE 64
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#define VOLUME_ID_UUID_SIZE 36
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#define VOLUME_ID_FORMAT_SIZE 32
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#define VOLUME_ID_PATH_MAX 256
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#define VOLUME_ID_PARTITIONS_MAX 256
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enum volume_id_usage {
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VOLUME_ID_UNUSED,
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VOLUME_ID_UNPROBED,
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VOLUME_ID_OTHER,
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VOLUME_ID_FILESYSTEM,
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VOLUME_ID_RAID,
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VOLUME_ID_DISKLABEL,
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VOLUME_ID_CRYPTO,
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};
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struct volume_id {
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uint8_t label_raw[VOLUME_ID_LABEL_SIZE];
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size_t label_raw_len;
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char label[VOLUME_ID_LABEL_SIZE+1];
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uint8_t uuid_raw[VOLUME_ID_UUID_SIZE];
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size_t uuid_raw_len;
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char uuid[VOLUME_ID_UUID_SIZE+1];
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enum volume_id_usage usage_id;
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char *usage;
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char *type;
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char type_version[VOLUME_ID_FORMAT_SIZE];
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int fd;
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uint8_t *sbbuf;
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size_t sbbuf_len;
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uint8_t *seekbuf;
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uint64_t seekbuf_off;
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size_t seekbuf_len;
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int fd_close:1;
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};
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/* filesystems */
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extern int volume_id_probe_cramfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_ext(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_vfat(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_hfs_hfsplus(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_hpfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_iso9660(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_jfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_minix(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_ntfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_ocfs1(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_ocfs2(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_reiserfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_romfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_sysv(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_udf(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_ufs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_vxfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_xfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_squashfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_netware(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_gfs(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_gfs2(struct volume_id *id, uint64_t off, uint64_t size);
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/* special formats */
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extern int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_luks(struct volume_id *id, uint64_t off, uint64_t size);
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/* raid */
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extern int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_lvm1(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_lvm2(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_ddf_raid(struct volume_id *id, uint64_t off, uint64_t size);
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/* bios raid */
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extern int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_adaptec_raid(struct volume_id *id, uint64_t off, uint64_t size);
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extern int volume_id_probe_jmicron_raid(struct volume_id *id, uint64_t off, uint64_t size);
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#endif
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