Skip to content
This repository
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 74 lines (60 sloc) 1.587 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2004-2010 Sage Weil <sage@newdream.net>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/

#ifndef CEPH_RBD_TYPES_H
#define CEPH_RBD_TYPES_H

#include <linux/types.h>

/*
* rbd image 'foo' consists of objects
* foo.rbd - image metadata
* foo.00000000
* foo.00000001
* ... - data
*/

#define RBD_SUFFIX ".rbd"
#define RBD_DIRECTORY "rbd_directory"
#define RBD_INFO "rbd_info"

#define RBD_DEFAULT_OBJ_ORDER 22 /* 4MB */
#define RBD_MIN_OBJ_ORDER 16
#define RBD_MAX_OBJ_ORDER 30

#define RBD_MAX_OBJ_NAME_LEN 96
#define RBD_MAX_SEG_NAME_LEN 128

#define RBD_COMP_NONE 0
#define RBD_CRYPT_NONE 0

#define RBD_HEADER_TEXT "<<< Rados Block Device Image >>>\n"
#define RBD_HEADER_SIGNATURE "RBD"
#define RBD_HEADER_VERSION "001.005"

struct rbd_info {
__le64 max_id;
} __attribute__ ((packed));

struct rbd_image_snap_ondisk {
__le64 id;
__le64 image_size;
} __attribute__((packed));

struct rbd_image_header_ondisk {
char text[40];
char block_name[24];
char signature[4];
char version[8];
struct {
__u8 order;
__u8 crypt_type;
__u8 comp_type;
__u8 unused;
} __attribute__((packed)) options;
__le64 image_size;
__le64 snap_seq;
__le32 snap_count;
__le32 reserved;
__le64 snap_names_len;
struct rbd_image_snap_ondisk snaps[0];
} __attribute__((packed));


#endif
Something went wrong with that request. Please try again.