nbd-netlink.h (2407B) - Raw
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 LINUX_NBD_NETLINK_H 20 #define LINUX_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 /* LINUX_NBD_NETLINK_H */