Quelle nbd-netlink.h Sprache: C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Copyright (C) 2017 Facebook.  All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#ifndef _UAPILINUX_NBD_NETLINK_H
#define _UAPILINUX_NBD_NETLINK_H

#define NBD_GENL_FAMILY_NAME  "nbd"
#define NBD_GENL_VERSION  0x1
#define NBD_GENL_MCAST_GROUP_NAME "nbd_mc_group"

/* Configuration policy attributes, used for CONNECT */
enum {
NBD_ATTR_UNSPEC,
NBD_ATTR_INDEX,
NBD_ATTR_SIZE_BYTES,
NBD_ATTR_BLOCK_SIZE_BYTES,
NBD_ATTR_TIMEOUT,
NBD_ATTR_SERVER_FLAGS,
NBD_ATTR_CLIENT_FLAGS,
NBD_ATTR_SOCKETS,
NBD_ATTR_DEAD_CONN_TIMEOUT,
NBD_ATTR_DEVICE_LIST,
NBD_ATTR_BACKEND_IDENTIFIER,
__NBD_ATTR_MAX,
};
#define NBD_ATTR_MAX (__NBD_ATTR_MAX - 1)

/*
* This is the format for multiple devices with NBD_ATTR_DEVICE_LIST
*
* [NBD_ATTR_DEVICE_LIST]
*   [NBD_DEVICE_ITEM]
*     [NBD_DEVICE_INDEX]
*     [NBD_DEVICE_CONNECTED]
*/
enum {
NBD_DEVICE_ITEM_UNSPEC,
NBD_DEVICE_ITEM,
__NBD_DEVICE_ITEM_MAX,
};
#define NBD_DEVICE_ITEM_MAX (__NBD_DEVICE_ITEM_MAX - 1)

enum {
NBD_DEVICE_UNSPEC,
NBD_DEVICE_INDEX,
NBD_DEVICE_CONNECTED,
__NBD_DEVICE_MAX,
};
#define NBD_DEVICE_ATTR_MAX (__NBD_DEVICE_MAX - 1)

/*
* This is the format for multiple sockets with NBD_ATTR_SOCKETS
*
* [NBD_ATTR_SOCKETS]
*   [NBD_SOCK_ITEM]
*     [NBD_SOCK_FD]
*   [NBD_SOCK_ITEM]
*     [NBD_SOCK_FD]
*/
enum {
NBD_SOCK_ITEM_UNSPEC,
NBD_SOCK_ITEM,
__NBD_SOCK_ITEM_MAX,
};
#define NBD_SOCK_ITEM_MAX (__NBD_SOCK_ITEM_MAX - 1)

enum {
NBD_SOCK_UNSPEC,
NBD_SOCK_FD,
__NBD_SOCK_MAX,
};
#define NBD_SOCK_MAX (__NBD_SOCK_MAX - 1)

enum {
NBD_CMD_UNSPEC,
NBD_CMD_CONNECT,
NBD_CMD_DISCONNECT,
NBD_CMD_RECONFIGURE,
NBD_CMD_LINK_DEAD,
NBD_CMD_STATUS,
__NBD_CMD_MAX,
};
#define NBD_CMD_MAX (__NBD_CMD_MAX - 1)

#endif /* _UAPILINUX_NBD_NETLINK_H */

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