/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* connector . h
*
* 2004 - 2005 Copyright ( c ) Evgeniy Polyakov < zbr @ ioremap . net >
* 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 0 x1
#define CN_VAL_PROC 0 x1
#define CN_IDX_CIFS 0 x2
#define CN_VAL_CIFS 0 x1
#define CN_W1_IDX 0 x3 /* w1 communication */
#define CN_W1_VAL 0 x1
#define CN_IDX_V86D 0 x4
#define CN_VAL_V86D_UVESAFB 0 x1
#define CN_IDX_BB 0 x5 /* BlackBoard, from the TSP GPL sampling framework */
#define CN_DST_IDX 0 x6
#define CN_DST_VAL 0 x1
#define CN_IDX_DM 0 x7 /* Device Mapper */
#define CN_VAL_DM_USERSPACE_LOG 0 x1
#define CN_IDX_DRBD 0 x8
#define CN_VAL_DRBD 0 x1
#define CN_KVP_IDX 0 x9 /* HyperV KVP */
#define CN_KVP_VAL 0 x1 /* queries from the kernel */
#define CN_VSS_IDX 0 xA /* HyperV VSS */
#define CN_VSS_VAL 0 x1 /* 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[];
};
#endif /* _UAPI__CONNECTOR_H */
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