nbd-netlink.h

   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 */