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     'ˆÉÏ„Ae¿ÈÃÍ 77    '/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 *      IP Virtual Server
 *      data structure and functionality definitions
 */

#ifndef _IP_VS_H
#define _IP_VS_H

#include <linux/types.h>	/* For __beXX types in userland */

#define IP_VS_VERSION_CODE	0x010201
#define NVERSION(version)			\
	(version >> 16) & 0xFF,			\
	(version >> 8) & 0xFF,			\
	version & 0xFF

/*
 *      Virtual Service Flags
 */
#define IP_VS_SVC_F_PERSISTENT	0x0001		/* persistent port */
#define IP_VS_SVC_F_HASHED	0x0002		/* hashed entry */
#define IP_VS_SVC_F_ONEPACKET	0x0004		/* one-packet scheduling */
#define IP_VS_SVC_F_SCHED1	0x0008		/* scheduler flag 1 */
#define IP_VS_SVC_F_SCHED2	0x0010		/* scheduler flag 2 */
#define IP_VS_SVC_F_SCHED3	0x0020		/* scheduler flag 3 */

#define IP_VS_SVC_F_SCHED_SH_FALLBACK	IP_VS_SVC_F_SCHED1 /* SH fallback */
#define IP_VS_SVC_F_SCHED_SH_PORT	IP_VS_SVC_F_SCHED2 /* SH use port */

/*
 *      Destination Server Flags
 */
#define IP_VS_DEST_F_AVAILABLE	0x0001		/* server is available */
#define IP_VS_DEST_F_OVERLOAD	0x0002		/* server is overloaded */

/*
 *      IPVS sync daemon states
 */
#define IP_VS_STATE_NONE	0x0000		/* daemon is stopped */
#define IP_VS_STATE_MASTER	0x0001		/* started as master */
#define IP_VS_STATE_BACKUP	0x0002		/* started as backup */

/*
 *      IPVS socket options
 */
#define IP_VS_BASE_CTL		(64+1024+64)		/* base */

#define IP_VS_SO_SET_NONE	IP_VS_BASE_CTL		/* just peek */
#define IP_VS_SO_SET_INSERT	(IP_VS_BASE_CTL+1)
#define IP_VS_SO_SET_ADD	(IP_VS_BASE_CTL+2)
#define IP_VS_SO_SET_EDIT	(IP_VS_BASE_CTL+3)
#define IP_VS_SO_SET_DEL	(IP_VS_BASE_CTL+4)
#define IP_VS_SO_SET_FLUSH	(IP_VS_BASE_CTL+5)
#define IP_VS_SO_SET_LIST	(IP_VS_BASE_CTL+6)
#define IP_VS_SO_SET_ADDDEST	(IP_VS_BASE_CTL+7)
#define IP_VS_SO_SET_DELDEST	(IP_VS_BASE_CTL+8)
#define IP_VS_SO_SET_EDITDEST	(IP_VS_BASE_CTL+9)
#define IP_VS_SO_SET_TIMEOUT	(IP_VS_BASE_CTL+10)
#define IP_VS_SO_SET_STARTDAEMON (IP_VS_BASE_CTL+11)
#define IP_VS_SO_SET_STOPDAEMON (IP_VS_BASE_CTL+12)
#define IP_VS_SO_SET_RESTORE    (IP_VS_BASE_CTL+13)
#define IP_VS_SO_SET_SAVE       (IP_VS_BASE_CTL+14)
#define IP_VS_SO_SET_ZERO	(IP_VS_BASE_CTL+15)
#define IP_VS_SO_SET_MAX	IP_VS_SO_SET_ZERO

#define IP_VS_SO_GET_VERSION	IP_VS_BASE_CTL
#define IP_VS_SO_GET_INFO	(IP_VS_BASE_CTL+1)
#define IP_VS_SO_GET_SERVICES	(IP_VS_BASE_CTL+2)
#define IP_VS_SO_GET_SERVICE	(IP_VS_BASE_CTL+3)
#define IP_VS_SO_GET_DESTS	(IP_VS_BASE_CTL+4)
#define IP_VS_SO_GET_DEST	(IP_VS_BASE_CTL+5)	/* not used now */
#define IP_VS_SO_GET_TIMEOUT	(IP_VS_BASE_CTL+6)
#define IP_VS_SO_GET_DAEMON	(IP_VS_BASE_CTL+7)
#define IP_VS_SO_GET_MAX	IP_VS_SO_GET_DAEMON


/*
 *      IPVS Connection Flags
 *      Only flags 0..15 are sent to backup server
 */
#define IP_VS_CONN_F_FWD_MASK	0x0007		/* mask for the fwd methods */
#define IP_VS_CONN_F_MASQ	0x0000		/* masquerading/NAT */
#define IP_VS_CONN_F_LOCALNODE	0x0001		/* local node */
#define IP_VS_CONN_F_TUNNEL	0x0002		/* tunneling */
#define IP_VS_CONN_F_DROUTE	0x0003		/* direct routing */
#define IP_VS_CONN_F_BYPASS	0x0004		/* cache bypass */
#define IP_VS_CONN_F_SYNC	0x0020		/* entry created by sync */
#define IP_VS_CONN_F_HASHED	0x0040		/* hashed entry */
#define IP_VS_CONN_F_NOOUTPUT	0x0080		/* no output packets */
#define IP_VS_CONN_F_INACTIVE	0x0100		/* not established */
#define IP_VS_CONN_F_OUT_SEQ	0x0200		/* must do output seq adjust */
#define IP_VS_CONN_F_IN_SEQ	0x0400		/* must do input seq adjust */
#define IP_VS_CONN_F_SEQ_MASK	0x0600		/* in/out sequence mask */
#define IP_VS_CONN_F_NO_CPORT	0x0800		/* no client port set yet */
#define IP_VS_CONN_F_TEMPLATE	0x1000		/* template, not connection */
#define IP_VS_CONN_F_ONE_PACKET	0x2000		/* forward only one packet */

/* Initial bits allowed in backup server */
#define IP_VS_CONN_F_BACKUP_MASK (IP_VS_CONN_F_FWD_MASK | \
				  IP_VS_C