/*
* connector.h
*
* 2004-2005 Copyright (c) Evgeniy Polyakov <[email protected]>
* 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 as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 02111-1307 USA
*/

#ifndef _UAPI__CONNECTOR_H
#define _UAPI__CONNECTOR_H

#include <linux/types.h>

/*
* Process Events connector unique ids -- used for message routing
*/
#define CN_IDX_PROC 0x1
#define CN_VAL_PROC 0x1
#define CN_IDX_CIFS 0x2
#define CN_VAL_CIFS 0x1
#define CN_W1_IDX 0x3 /* w1 communication */
#define CN_W1_VAL 0x1
#define CN_IDX_V86D 0x4
#define CN_VAL_V86D_UVESAFB 0x1
#define CN_IDX_BB 0x5 /* BlackBoard, from the TSP GPL sampling framework */
#define CN_DST_IDX 0x6
#define CN_DST_VAL 0x1
#define CN_IDX_DM 0x7 /* Device Mapper */
#define CN_VAL_DM_USERSPACE_LOG 0x1
#define CN_IDX_DRBD 0x8
#define CN_VAL_DRBD 0x1
#define CN_KVP_IDX 0x9 /* HyperV KVP */
#define CN_KVP_VAL 0x1 /* queries from the kernel */
#define CN_VSS_IDX 0xA /* HyperV VSS */
#define CN_VSS_VAL 0x1 /* queries from the kernel */


#define CN_NETLINK_USERS 11 /* Highest index + 1 */

/*
* Maximum connector's message size.
*/
#define CONNECTOR_MAX_MSG_SIZE 16384

/*
* idx and val are unique identifiers which
* are used for message routing and
* must be registered in connector.h for in-kernel usage.
*/

struct cb_id {
__u32 idx;
__u32 val;
};

struct cn_msg {
struct cb_id id;

__u32 seq;
__u32 ack;

__u16 len; /* Length of the following data */
__u16 flags;
__u8 data[0];
};

#endif /* _UAPI__CONNECTOR_H */