1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3 * Copyright (C) 2017 Facebook. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public
7 * License v2 as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public
15 * License along with this program; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 021110-1307, USA.
18 */
19 #ifndef _UAPILINUX_NBD_NETLINK_H
20 #define _UAPILINUX_NBD_NETLINK_H
21
22 #define NBD_GENL_FAMILY_NAME "nbd"
23 #define NBD_GENL_VERSION 0x1
24 #define NBD_GENL_MCAST_GROUP_NAME "nbd_mc_group"
25
26 /* Configuration policy attributes, used for CONNECT */
27 enum {
28 NBD_ATTR_UNSPEC,
29 NBD_ATTR_INDEX,
30 NBD_ATTR_SIZE_BYTES,
31 NBD_ATTR_BLOCK_SIZE_BYTES,
32 NBD_ATTR_TIMEOUT,
33 NBD_ATTR_SERVER_FLAGS,
34 NBD_ATTR_CLIENT_FLAGS,
35 NBD_ATTR_SOCKETS,
36 NBD_ATTR_DEAD_CONN_TIMEOUT,
37 NBD_ATTR_DEVICE_LIST,
38 NBD_ATTR_BACKEND_IDENTIFIER,
39 __NBD_ATTR_MAX,
40 };
41 #define NBD_ATTR_MAX (__NBD_ATTR_MAX - 1)
42
43 /*
44 * This is the format for multiple devices with NBD_ATTR_DEVICE_LIST
45 *
46 * [NBD_ATTR_DEVICE_LIST]
47 * [NBD_DEVICE_ITEM]
48 * [NBD_DEVICE_INDEX]
49 * [NBD_DEVICE_CONNECTED]
50 */
51 enum {
52 NBD_DEVICE_ITEM_UNSPEC,
53 NBD_DEVICE_ITEM,
54 __NBD_DEVICE_ITEM_MAX,
55 };
56 #define NBD_DEVICE_ITEM_MAX (__NBD_DEVICE_ITEM_MAX - 1)
57
58 enum {
59 NBD_DEVICE_UNSPEC,
60 NBD_DEVICE_INDEX,
61 NBD_DEVICE_CONNECTED,
62 __NBD_DEVICE_MAX,
63 };
64 #define NBD_DEVICE_ATTR_MAX (__NBD_DEVICE_MAX - 1)
65
66 /*
67 * This is the format for multiple sockets with NBD_ATTR_SOCKETS
68 *
69 * [NBD_ATTR_SOCKETS]
70 * [NBD_SOCK_ITEM]
71 * [NBD_SOCK_FD]
72 * [NBD_SOCK_ITEM]
73 * [NBD_SOCK_FD]
74 */
75 enum {
76 NBD_SOCK_ITEM_UNSPEC,
77 NBD_SOCK_ITEM,
78 __NBD_SOCK_ITEM_MAX,
79 };
80 #define NBD_SOCK_ITEM_MAX (__NBD_SOCK_ITEM_MAX - 1)
81
82 enum {
83 NBD_SOCK_UNSPEC,
84 NBD_SOCK_FD,
85 __NBD_SOCK_MAX,
86 };
87 #define NBD_SOCK_MAX (__NBD_SOCK_MAX - 1)
88
89 enum {
90 NBD_CMD_UNSPEC,
91 NBD_CMD_CONNECT,
92 NBD_CMD_DISCONNECT,
93 NBD_CMD_RECONFIGURE,
94 NBD_CMD_LINK_DEAD,
95 NBD_CMD_STATUS,
96 __NBD_CMD_MAX,
97 };
98 #define NBD_CMD_MAX (__NBD_CMD_MAX - 1)
99
100 #endif /* _UAPILINUX_NBD_NETLINK_H */
101
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