1 /*
2  * Copyright (C) 2017 Facebook.  All rights reserved.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public
6  * License v2 as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
11  * General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public
14  * License along with this program; if not, write to the
15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16  * Boston, MA 021110-1307, USA.
17  */
18 #ifndef _UAPILINUX_NBD_NETLINK_H
19 #define _UAPILINUX_NBD_NETLINK_H
20 
21 #define NBD_GENL_FAMILY_NAME	"nbd"
22 #define NBD_GENL_VERSION	0x1
23 
24 /* Configuration policy attributes, used for CONNECT */
25 enum {
26 	NBD_ATTR_UNSPEC,
27 	NBD_ATTR_INDEX,
28 	NBD_ATTR_SIZE_BYTES,
29 	NBD_ATTR_BLOCK_SIZE_BYTES,
30 	NBD_ATTR_TIMEOUT,
31 	NBD_ATTR_SERVER_FLAGS,
32 	NBD_ATTR_CLIENT_FLAGS,
33 	NBD_ATTR_SOCKETS,
34 	__NBD_ATTR_MAX,
35 };
36 #define NBD_ATTR_MAX (__NBD_ATTR_MAX - 1)
37 
38 /*
39  * This is the format for multiple sockets with NBD_ATTR_SOCKETS
40  *
41  * [NBD_ATTR_SOCKETS]
42  *   [NBD_SOCK_ITEM]
43  *     [NBD_SOCK_FD]
44  *   [NBD_SOCK_ITEM]
45  *     [NBD_SOCK_FD]
46  */
47 enum {
48 	NBD_SOCK_ITEM_UNSPEC,
49 	NBD_SOCK_ITEM,
50 	__NBD_SOCK_ITEM_MAX,
51 };
52 #define NBD_SOCK_ITEM_MAX (__NBD_SOCK_ITEM_MAX - 1)
53 
54 enum {
55 	NBD_SOCK_UNSPEC,
56 	NBD_SOCK_FD,
57 	__NBD_SOCK_MAX,
58 };
59 #define NBD_SOCK_MAX (__NBD_SOCK_MAX - 1)
60 
61 enum {
62 	NBD_CMD_UNSPEC,
63 	NBD_CMD_CONNECT,
64 	NBD_CMD_DISCONNECT,
65 	__NBD_CMD_MAX,
66 };
67 #define NBD_CMD_MAX	(__NBD_CMD_MAX - 1)
68 
69 #endif /* _UAPILINUX_NBD_NETLINK_H */
70