mirror of
git://sourceware.org/git/lvm2.git
synced 2024-10-27 10:25:13 +03:00
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
|
|
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
|
*
|
|
* This file is released under the LGPL.
|
|
*/
|
|
|
|
#ifndef _LVM_TEXT_LAYOUT_H
|
|
#define _LVM_TEXT_LAYOUT_H
|
|
|
|
#include "config.h"
|
|
#include "lvm-types.h"
|
|
#include "metadata.h"
|
|
#include "uuid.h"
|
|
|
|
/* On disk */
|
|
struct disk_locn {
|
|
uint64_t offset; /* Offset in bytes to start sector */
|
|
uint64_t size; /* Bytes */
|
|
} __attribute__ ((packed));
|
|
|
|
/* Data areas (holding PEs) */
|
|
struct data_area_list {
|
|
struct list list;
|
|
struct disk_locn disk_locn;
|
|
};
|
|
|
|
/* Fields with the suffix _xl should be xlate'd wherever they appear */
|
|
/* On disk */
|
|
struct pv_header {
|
|
uint8_t pv_uuid[ID_LEN];
|
|
uint64_t device_size_xl; /* Bytes */
|
|
|
|
/* NULL-terminated list of data areas followed by */
|
|
/* NULL-terminated list of metadata area headers */
|
|
struct disk_locn disk_areas_xl[0]; /* Two lists */
|
|
} __attribute__ ((packed));
|
|
|
|
/* On disk */
|
|
struct raw_locn {
|
|
uint64_t offset; /* Offset in bytes to start sector */
|
|
uint64_t size; /* Bytes */
|
|
uint32_t checksum;
|
|
uint32_t filler;
|
|
} __attribute__ ((packed));
|
|
|
|
/* On disk */
|
|
/* Structure size limited to one sector */
|
|
struct mda_header {
|
|
uint32_t checksum_xl; /* Checksum of rest of mda_header */
|
|
uint8_t magic[16]; /* To aid scans for metadata */
|
|
uint32_t version;
|
|
uint64_t start; /* Absolute start byte of mda_header */
|
|
uint64_t size; /* Size of metadata area */
|
|
|
|
struct raw_locn raw_locns[0]; /* NULL-terminated list */
|
|
} __attribute__ ((packed));
|
|
|
|
struct mda_lists {
|
|
struct list dirs;
|
|
struct list raws;
|
|
struct metadata_area_ops *file_ops;
|
|
struct metadata_area_ops *raw_ops;
|
|
};
|
|
|
|
struct mda_context {
|
|
struct device_area area;
|
|
struct raw_locn rlocn; /* Store inbetween write and commit */
|
|
};
|
|
|
|
/* FIXME Convert this at runtime */
|
|
#define FMTT_MAGIC "\040\114\126\115\062\040\170\133\065\101\045\162\060\116\052\076"
|
|
#define FMTT_VERSION 1
|
|
#define MDA_HEADER_SIZE 512
|
|
#define LVM2_LABEL "LVM2 001"
|
|
|
|
#endif
|