LXR linux/include/uapi/linux/nbd-netlink.h

   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 */
  27enum {
  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 */
  51enum {
  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
  58enum {
  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 */
  75enum {
  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
  82enum {
  83        NBD_SOCK_UNSPEC,
  84        NBD_SOCK_FD,
  85        __NBD_SOCK_MAX,
  86};
  87#define NBD_SOCK_MAX (__NBD_SOCK_MAX - 1)
  88
  89enum {
  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