/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* connector.h
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*
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* 2004-2005 Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _UAPI__CONNECTOR_H
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#define _UAPI__CONNECTOR_H
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#include <linux/types.h>
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/*
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* Process Events connector unique ids -- used for message routing
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*/
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#define CN_IDX_PROC 0x1
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#define CN_VAL_PROC 0x1
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#define CN_IDX_CIFS 0x2
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#define CN_VAL_CIFS 0x1
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#define CN_W1_IDX 0x3 /* w1 communication */
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#define CN_W1_VAL 0x1
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#define CN_IDX_V86D 0x4
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#define CN_VAL_V86D_UVESAFB 0x1
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#define CN_IDX_BB 0x5 /* BlackBoard, from the TSP GPL sampling framework */
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#define CN_DST_IDX 0x6
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#define CN_DST_VAL 0x1
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#define CN_IDX_DM 0x7 /* Device Mapper */
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#define CN_VAL_DM_USERSPACE_LOG 0x1
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#define CN_IDX_DRBD 0x8
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#define CN_VAL_DRBD 0x1
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#define CN_KVP_IDX 0x9 /* HyperV KVP */
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#define CN_KVP_VAL 0x1 /* queries from the kernel */
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#define CN_VSS_IDX 0xA /* HyperV VSS */
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#define CN_VSS_VAL 0x1 /* queries from the kernel */
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#define CN_NETLINK_USERS 11 /* Highest index + 1 */
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/*
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* Maximum connector's message size.
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*/
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#define CONNECTOR_MAX_MSG_SIZE 16384
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/*
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* idx and val are unique identifiers which
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* are used for message routing and
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* must be registered in connector.h for in-kernel usage.
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*/
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struct cb_id {
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__u32 idx;
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__u32 val;
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};
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struct cn_msg {
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struct cb_id id;
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__u32 seq;
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__u32 ack;
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__u16 len; /* Length of the following data */
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__u16 flags;
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__u8 data[0];
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};
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#endif /* _UAPI__CONNECTOR_H */
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