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/*
* volume_id - reads partition label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* 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 version 2 of the License.
*/
#ifndef _VOLUME_ID_H_
#define _VOLUME_ID_H_
#include <stdint.h>
#define VOLUME_ID_VERSION 52
#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
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;
char *usage;
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;
char *usage;
char *type;
char type_version[VOLUME_ID_FORMAT_SIZE];
struct volume_id_partition *partitions;
size_t partition_count;
int fd;
uint8_t *sbbuf;
size_t sbbuf_len;
uint8_t *seekbuf;
uint64_t seekbuf_off;
size_t seekbuf_len;
int fd_close:1;
};
extern struct volume_id *volume_id_open_fd(int fd);
extern struct volume_id *volume_id_open_node(const char *path);
extern struct volume_id *volume_id_open_dev_t(dev_t devt);
extern int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size);
extern void volume_id_close(struct volume_id *id);
#endif
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