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
|
/*
* This file is part of the Distributed Network Block Device 3
*
* Copyright(c) 2011-2012 Johann Latocha <johann@latocha.de>
*
* This file may be licensed under the terms of of the
* GNU General Public License Version 2 (the ``GPL'').
*
* Software distributed under the License is distributed
* on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
* express or implied. See the GPL for the specific language
* governing rights and limitations.
*
* You should have received a copy of the GPL along with this
* program. If not, go to http://www.gnu.org/licenses/gpl.html
* or write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef TYPES_H_
#define TYPES_H_
#include "config.h"
// ioctl
#define DNBD3_MAGIC 'd'
#define IOCTL_SET_HOST _IO(0xab, 1)
#define IOCTL_SET_PORT _IO(0xab, 2)
#define IOCTL_SET_IMAGE _IO(0xab, 3)
#define IOCTL_CONNECT _IO(0xab, 4)
// network
#define CMD_GET_BLOCK 1
#define CMD_GET_SIZE 2
#pragma pack(1)
typedef struct dnbd3_request
{
uint16_t cmd;
uint64_t offset;
uint64_t size;
char image_id[MAX_FILE_ID];
char handle[8];
} dnbd3_request_t;
#pragma pack(0)
#pragma pack(1)
typedef struct dnbd3_reply
{
uint16_t cmd;
uint64_t filesize;
char handle[8];
} dnbd3_reply_t;
#pragma pack(0)
#endif /* TYPES_H_ */
|