[linux-2.6-block.git] / include / uapi / linux / ip_vs.h

/* 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_CONN_F_NOOUTPUT | \
				  IP_VS_CONN_F_INACTIVE | \
				  IP_VS_CONN_F_SEQ_MASK | \
				  IP_VS_CONN_F_NO_CPORT | \
				  IP_VS_CONN_F_TEMPLATE \
				 )

/* Bits allowed to update in backup server */
#define IP_VS_CONN_F_BACKUP_UPD_MASK (IP_VS_CONN_F_INACTIVE | \
				      IP_VS_CONN_F_SEQ_MASK)

/* Flags that are not sent to backup server start from bit 16 */
#define IP_VS_CONN_F_NFCT	(1 << 16)	/* use netfilter conntrack */

/* Connection flags from destination that can be changed by user space */
#define IP_VS_CONN_F_DEST_MASK (IP_VS_CONN_F_FWD_MASK | \
				IP_VS_CONN_F_ONE_PACKET | \
				IP_VS_CONN_F_NFCT | \
				0)

#define IP_VS_SCHEDNAME_MAXLEN	16
#define IP_VS_PENAME_MAXLEN	16
#define IP_VS_IFNAME_MAXLEN	16

#define IP_VS_PEDATA_MAXLEN     255

/*
 *	The struct ip_vs_service_user and struct ip_vs_dest_user are
 *	used to set IPVS rules through setsockopt.
 */
struct ip_vs_service_user {
	/* virtual service addresses */
	__u16		protocol;
	__be32			addr;		/* virtual ip address */
	__be16			port;
	__u32		fwmark;		/* firwall mark of service */

	/* virtual service options */
	char			sched_name[IP_VS_SCHEDNAME_MAXLEN];
	unsigned int		flags;		/* virtual service flags */
	unsigned int		timeout;	/* persistent timeout in sec */
	__be32			netmask;	/* persistent netmask */
};


struct ip_vs_dest_user {
	/* destination server address */
	__be32			addr;
	__be16			port;

	/* real server options */
	unsigned int		conn_flags;	/* connection flags */
	int			weight;		/* destination weight */

	/* thresholds for active connections */
	__u32		u_threshold;	/* upper threshold */
	__u32		l_threshold;	/* lower threshold */
};


/*
 *	IPVS statistics object (for user space)
 */
struct ip_vs_stats_user {
	__u32                   conns;          /* connections scheduled */
	__u32                   inpkts;         /* incoming packets */
	__u32                   outpkts;        /* outgoing packets */
	__u64                   inbytes;        /* incoming bytes */
	__u64                   outbytes;       /* outgoing bytes */

	__u32			cps;		/* current connection rate */
	__u32			inpps;		/* current in packet rate */
	__u32			outpps;		/* current out packet rate */
	__u32			inbps;		/* current in byte rate */
	__u32			outbps;		/* current out byte rate */
};


/* The argument to IP_VS_SO_GET_INFO */
struct ip_vs_getinfo {
	/* version number */
	unsigned int		version;

	/* size of connection hash table */
	unsigned int		size;

	/* number of virtual services */
	unsigned int		num_services;
};


/* The argument to IP_VS_SO_GET_SERVICE */
struct ip_vs_service_entry {
	/* which service: user fills in these */
	__u16		protocol;
	__be32			addr;		/* virtual address */
	__be16			port;
	__u32		fwmark;		/* firwall mark of service */

	/* service options */
	char			sched_name[IP_VS_SCHEDNAME_MAXLEN];
	unsigned int		flags;          /* virtual service flags */
	unsigned int		timeout;	/* persistent timeout */
	__be32			netmask;	/* persistent netmask */

	/* number of real servers */
	unsigned int		num_dests;

	/* statistics */
	struct ip_vs_stats_user stats;
};


struct ip_vs_dest_entry {
	__be32			addr;		/* destination address */
	__be16			port;
	unsigned int		conn_flags;	/* connection flags */
	int			weight;		/* destination weight */

	__u32		u_threshold;	/* upper threshold */
	__u32		l_threshold;	/* lower threshold */

	__u32		activeconns;	/* active connections */
	__u32		inactconns;	/* inactive connections */
	__u32		persistconns;	/* persistent connections */

	/* statistics */
	struct ip_vs_stats_user stats;
};


/* The argument to IP_VS_SO_GET_DESTS */
struct ip_vs_get_dests {
	/* which service: user fills in these */
	__u16		protocol;
	__be32			addr;		/* virtual address */
	__be16			port;
	__u32		fwmark;		/* firwall mark of service */

	/* number of real servers */
	unsigned int		num_dests;

	/* the real servers */
	struct ip_vs_dest_entry	entrytable[0];
};


/* The argument to IP_VS_SO_GET_SERVICES */
struct ip_vs_get_services {
	/* number of virtual services */
	unsigned int		num_services;

	/* service table */
	struct ip_vs_service_entry entrytable[0];
};


/* The argument to IP_VS_SO_GET_TIMEOUT */
struct ip_vs_timeout_user {
	int			tcp_timeout;
	int			tcp_fin_timeout;
	int			udp_timeout;
};


/* The argument to IP_VS_SO_GET_DAEMON */
struct ip_vs_daemon_user {
	/* sync daemon state (master/backup) */
	int			state;

	/* multicast interface name */
	char			mcast_ifn[IP_VS_IFNAME_MAXLEN];

	/* SyncID we belong to */
	int			syncid;
};

/*
 *
 * IPVS Generic Netlink interface definitions
 *
 */

/* Generic Netlink family info */

#define IPVS_GENL_NAME		"IPVS"
#define IPVS_GENL_VERSION	0x1

struct ip_vs_flags {
	__u32 flags;
	__u32 mask;
};

/* Generic Netlink command attributes */
enum {
	IPVS_CMD_UNSPEC = 0,

	IPVS_CMD_NEW_SERVICE,		/* add service */
	IPVS_CMD_SET_SERVICE,		/* modify service */
	IPVS_CMD_DEL_SERVICE,		/* delete service */
	IPVS_CMD_GET_SERVICE,		/* get service info */

	IPVS_CMD_NEW_DEST,		/* add destination */
	IPVS_CMD_SET_DEST,		/* modify destination */
	IPVS_CMD_DEL_DEST,		/* delete destination */
	IPVS_CMD_GET_DEST,		/* get destination info */

	IPVS_CMD_NEW_DAEMON,		/* start sync daemon */
	IPVS_CMD_DEL_DAEMON,		/* stop sync daemon */
	IPVS_CMD_GET_DAEMON,		/* get sync daemon status */

	IPVS_CMD_SET_CONFIG,		/* set config settings */
	IPVS_CMD_GET_CONFIG,		/* get config settings */

	IPVS_CMD_SET_INFO,		/* only used in GET_INFO reply */
	IPVS_CMD_GET_INFO,		/* get general IPVS info */

	IPVS_CMD_ZERO,			/* zero all counters and stats */
	IPVS_CMD_FLUSH,			/* flush services and dests */

	__IPVS_CMD_MAX,
};

#define IPVS_CMD_MAX (__IPVS_CMD_MAX - 1)

/* Attributes used in the first level of commands */
enum {
	IPVS_CMD_ATTR_UNSPEC = 0,
	IPVS_CMD_ATTR_SERVICE,		/* nested service attribute */
	IPVS_CMD_ATTR_DEST,		/* nested destination attribute */
	IPVS_CMD_ATTR_DAEMON,		/* nested sync daemon attribute */
	IPVS_CMD_ATTR_TIMEOUT_TCP,	/* TCP connection timeout */
	IPVS_CMD_ATTR_TIMEOUT_TCP_FIN,	/* TCP FIN wait timeout */
	IPVS_CMD_ATTR_TIMEOUT_UDP,	/* UDP timeout */
	__IPVS_CMD_ATTR_MAX,
};

#define IPVS_CMD_ATTR_MAX (__IPVS_CMD_ATTR_MAX - 1)

/*
 * Attributes used to describe a service
 *
 * Used inside nested attribute IPVS_CMD_ATTR_SERVICE
 */
enum {
	IPVS_SVC_ATTR_UNSPEC = 0,
	IPVS_SVC_ATTR_AF,		/* address family */
	IPVS_SVC_ATTR_PROTOCOL,		/* virtual service protocol */
	IPVS_SVC_ATTR_ADDR,		/* virtual service address */
	IPVS_SVC_ATTR_PORT,		/* virtual service port */
	IPVS_SVC_ATTR_FWMARK,		/* firewall mark of service */

	IPVS_SVC_ATTR_SCHED_NAME,	/* name of scheduler */
	IPVS_SVC_ATTR_FLAGS,		/* virtual service flags */
	IPVS_SVC_ATTR_TIMEOUT,		/* persistent timeout */
	IPVS_SVC_ATTR_NETMASK,		/* persistent netmask */

	IPVS_SVC_ATTR_STATS,		/* nested attribute for service stats */

	IPVS_SVC_ATTR_PE_NAME,		/* name of ct retriever */

	IPVS_SVC_ATTR_STATS64,		/* nested attribute for service stats */

	__IPVS_SVC_ATTR_MAX,
};

#define IPVS_SVC_ATTR_MAX (__IPVS_SVC_ATTR_MAX - 1)

/*
 * Attributes used to describe a destination (real server)
 *
 * Used inside nested attribute IPVS_CMD_ATTR_DEST
 */
enum {
	IPVS_DEST_ATTR_UNSPEC = 0,
	IPVS_DEST_ATTR_ADDR,		/* real server address */
	IPVS_DEST_ATTR_PORT,		/* real server port */

	IPVS_DEST_ATTR_FWD_METHOD,	/* forwarding method */
	IPVS_DEST_ATTR_WEIGHT,		/* destination weight */

	IPVS_DEST_ATTR_U_THRESH,	/* upper threshold */
	IPVS_DEST_ATTR_L_THRESH,	/* lower threshold */

	IPVS_DEST_ATTR_ACTIVE_CONNS,	/* active connections */
	IPVS_DEST_ATTR_INACT_CONNS,	/* inactive connections */
	IPVS_DEST_ATTR_PERSIST_CONNS,	/* persistent connections */

	IPVS_DEST_ATTR_STATS,		/* nested attribute for dest stats */

	IPVS_DEST_ATTR_ADDR_FAMILY,	/* Address family of address */

	IPVS_DEST_ATTR_STATS64,		/* nested attribute for dest stats */

	__IPVS_DEST_ATTR_MAX,
};

#define IPVS_DEST_ATTR_MAX (__IPVS_DEST_ATTR_MAX - 1)

/*
 * Attributes describing a sync daemon
 *
 * Used inside nested attribute IPVS_CMD_ATTR_DAEMON
 */
enum {
	IPVS_DAEMON_ATTR_UNSPEC = 0,
	IPVS_DAEMON_ATTR_STATE,		/* sync daemon state (master/backup) */
	IPVS_DAEMON_ATTR_MCAST_IFN,	/* multicast interface name */
	IPVS_DAEMON_ATTR_SYNC_ID,	/* SyncID we belong to */
	IPVS_DAEMON_ATTR_SYNC_MAXLEN,	/* UDP Payload Size */
	IPVS_DAEMON_ATTR_MCAST_GROUP,	/* IPv4 Multicast Address */
	IPVS_DAEMON_ATTR_MCAST_GROUP6,	/* IPv6 Multicast Address */
	IPVS_DAEMON_ATTR_MCAST_PORT,	/* Multicast Port (base) */
	IPVS_DAEMON_ATTR_MCAST_TTL,	/* Multicast TTL */
	__IPVS_DAEMON_ATTR_MAX,
};

#define IPVS_DAEMON_ATTR_MAX (__IPVS_DAEMON_ATTR_MAX - 1)

/*
 * Attributes used to describe service or destination entry statistics
 *
 * Used inside nested attributes IPVS_SVC_ATTR_STATS, IPVS_DEST_ATTR_STATS,
 * IPVS_SVC_ATTR_STATS64 and IPVS_DEST_ATTR_STATS64.
 */
enum {
	IPVS_STATS_ATTR_UNSPEC = 0,
	IPVS_STATS_ATTR_CONNS,		/* connections scheduled */
	IPVS_STATS_ATTR_INPKTS,		/* incoming packets */
	IPVS_STATS_ATTR_OUTPKTS,	/* outgoing packets */
	IPVS_STATS_ATTR_INBYTES,	/* incoming bytes */
	IPVS_STATS_ATTR_OUTBYTES,	/* outgoing bytes */

	IPVS_STATS_ATTR_CPS,		/* current connection rate */
	IPVS_STATS_ATTR_INPPS,		/* current in packet rate */
	IPVS_STATS_ATTR_OUTPPS,		/* current out packet rate */
	IPVS_STATS_ATTR_INBPS,		/* current in byte rate */
	IPVS_STATS_ATTR_OUTBPS,		/* current out byte rate */
	IPVS_STATS_ATTR_PAD,
	__IPVS_STATS_ATTR_MAX,
};

#define IPVS_STATS_ATTR_MAX (__IPVS_STATS_ATTR_MAX - 1)

/* Attributes used in response to IPVS_CMD_GET_INFO command */
enum {
	IPVS_INFO_ATTR_UNSPEC = 0,
	IPVS_INFO_ATTR_VERSION,		/* IPVS version number */
	IPVS_INFO_ATTR_CONN_TAB_SIZE,	/* size of connection hash table */
	__IPVS_INFO_ATTR_MAX,
};

#define IPVS_INFO_ATTR_MAX (__IPVS_INFO_ATTR_MAX - 1)

#endif	/* _IP_VS_H */
Commit	Line	Data
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
bc4768eb JV	2	/*
	3	* IP Virtual Server
	4	* data structure and functionality definitions
	5	*/
	6
	7	#ifndef _IP_VS_H
	8	#define _IP_VS_H
	9
	10	#include <linux/types.h> /* For __beXX types in userland */
	11
	12	#define IP_VS_VERSION_CODE 0x010201
	13	#define NVERSION(version) \
	14	(version >> 16) & 0xFF, \
	15	(version >> 8) & 0xFF, \
	16	version & 0xFF
	17
	18	/*
	19	* Virtual Service Flags
	20	*/
	21	#define IP_VS_SVC_F_PERSISTENT 0x0001 /* persistent port */
	22	#define IP_VS_SVC_F_HASHED 0x0002 /* hashed entry */
26ec037f	23	#define IP_VS_SVC_F_ONEPACKET 0x0004 /* one-packet scheduling */
eba3b5a7 AF	24	#define IP_VS_SVC_F_SCHED1 0x0008 /* scheduler flag 1 */
	25	#define IP_VS_SVC_F_SCHED2 0x0010 /* scheduler flag 2 */
	26	#define IP_VS_SVC_F_SCHED3 0x0020 /* scheduler flag 3 */
	27
	28	#define IP_VS_SVC_F_SCHED_SH_FALLBACK IP_VS_SVC_F_SCHED1 /* SH fallback */
	29	#define IP_VS_SVC_F_SCHED_SH_PORT IP_VS_SVC_F_SCHED2 /* SH use port */
bc4768eb JV	30
	31	/*
	32	* Destination Server Flags
	33	*/
	34	#define IP_VS_DEST_F_AVAILABLE 0x0001 /* server is available */
	35	#define IP_VS_DEST_F_OVERLOAD 0x0002 /* server is overloaded */
	36
	37	/*
	38	* IPVS sync daemon states
	39	*/
	40	#define IP_VS_STATE_NONE 0x0000 /* daemon is stopped */
	41	#define IP_VS_STATE_MASTER 0x0001 /* started as master */
	42	#define IP_VS_STATE_BACKUP 0x0002 /* started as backup */
	43
	44	/*
	45	* IPVS socket options
	46	*/
	47	#define IP_VS_BASE_CTL (64+1024+64) /* base */
	48
	49	#define IP_VS_SO_SET_NONE IP_VS_BASE_CTL /* just peek */
	50	#define IP_VS_SO_SET_INSERT (IP_VS_BASE_CTL+1)
	51	#define IP_VS_SO_SET_ADD (IP_VS_BASE_CTL+2)
	52	#define IP_VS_SO_SET_EDIT (IP_VS_BASE_CTL+3)
	53	#define IP_VS_SO_SET_DEL (IP_VS_BASE_CTL+4)
	54	#define IP_VS_SO_SET_FLUSH (IP_VS_BASE_CTL+5)
	55	#define IP_VS_SO_SET_LIST (IP_VS_BASE_CTL+6)
	56	#define IP_VS_SO_SET_ADDDEST (IP_VS_BASE_CTL+7)
	57	#define IP_VS_SO_SET_DELDEST (IP_VS_BASE_CTL+8)
	58	#define IP_VS_SO_SET_EDITDEST (IP_VS_BASE_CTL+9)
	59	#define IP_VS_SO_SET_TIMEOUT (IP_VS_BASE_CTL+10)
	60	#define IP_VS_SO_SET_STARTDAEMON (IP_VS_BASE_CTL+11)
	61	#define IP_VS_SO_SET_STOPDAEMON (IP_VS_BASE_CTL+12)
	62	#define IP_VS_SO_SET_RESTORE (IP_VS_BASE_CTL+13)
	63	#define IP_VS_SO_SET_SAVE (IP_VS_BASE_CTL+14)
	64	#define IP_VS_SO_SET_ZERO (IP_VS_BASE_CTL+15)
	65	#define IP_VS_SO_SET_MAX IP_VS_SO_SET_ZERO
	66
	67	#define IP_VS_SO_GET_VERSION IP_VS_BASE_CTL
	68	#define IP_VS_SO_GET_INFO (IP_VS_BASE_CTL+1)
	69	#define IP_VS_SO_GET_SERVICES (IP_VS_BASE_CTL+2)
	70	#define IP_VS_SO_GET_SERVICE (IP_VS_BASE_CTL+3)
	71	#define IP_VS_SO_GET_DESTS (IP_VS_BASE_CTL+4)
	72	#define IP_VS_SO_GET_DEST (IP_VS_BASE_CTL+5) /* not used now */
	73	#define IP_VS_SO_GET_TIMEOUT (IP_VS_BASE_CTL+6)
	74	#define IP_VS_SO_GET_DAEMON (IP_VS_BASE_CTL+7)
	75	#define IP_VS_SO_GET_MAX IP_VS_SO_GET_DAEMON
	76
	77
	78	/*
	79	* IPVS Connection Flags
3575792e	80	* Only flags 0..15 are sent to backup server
bc4768eb JV	81	*/
	82	#define IP_VS_CONN_F_FWD_MASK 0x0007 /* mask for the fwd methods */
	83	#define IP_VS_CONN_F_MASQ 0x0000 /* masquerading/NAT */
	84	#define IP_VS_CONN_F_LOCALNODE 0x0001 /* local node */
	85	#define IP_VS_CONN_F_TUNNEL 0x0002 /* tunneling */
	86	#define IP_VS_CONN_F_DROUTE 0x0003 /* direct routing */
	87	#define IP_VS_CONN_F_BYPASS 0x0004 /* cache bypass */
	88	#define IP_VS_CONN_F_SYNC 0x0020 /* entry created by sync */
	89	#define IP_VS_CONN_F_HASHED 0x0040 /* hashed entry */
	90	#define IP_VS_CONN_F_NOOUTPUT 0x0080 /* no output packets */
	91	#define IP_VS_CONN_F_INACTIVE 0x0100 /* not established */
	92	#define IP_VS_CONN_F_OUT_SEQ 0x0200 /* must do output seq adjust */
	93	#define IP_VS_CONN_F_IN_SEQ 0x0400 /* must do input seq adjust */
	94	#define IP_VS_CONN_F_SEQ_MASK 0x0600 /* in/out sequence mask */
	95	#define IP_VS_CONN_F_NO_CPORT 0x0800 /* no client port set yet */
	96	#define IP_VS_CONN_F_TEMPLATE 0x1000 /* template, not connection */
26ec037f	97	#define IP_VS_CONN_F_ONE_PACKET 0x2000 /* forward only one packet */
bc4768eb	98
cdcc5e90	99	/* Initial bits allowed in backup server */
fe5e7a1e HS	100	#define IP_VS_CONN_F_BACKUP_MASK (IP_VS_CONN_F_FWD_MASK \| \
	101	IP_VS_CONN_F_NOOUTPUT \| \
	102	IP_VS_CONN_F_INACTIVE \| \
	103	IP_VS_CONN_F_SEQ_MASK \| \
	104	IP_VS_CONN_F_NO_CPORT \| \
	105	IP_VS_CONN_F_TEMPLATE \
	106	)
	107
cdcc5e90 JA	108	/* Bits allowed to update in backup server */
	109	#define IP_VS_CONN_F_BACKUP_UPD_MASK (IP_VS_CONN_F_INACTIVE \| \
	110	IP_VS_CONN_F_SEQ_MASK)
	111
3575792e	112	/* Flags that are not sent to backup server start from bit 16 */
f4bc17cd	113	#define IP_VS_CONN_F_NFCT (1 << 16) /* use netfilter conntrack */
3575792e JA	114
	115	/* Connection flags from destination that can be changed by user space */
	116	#define IP_VS_CONN_F_DEST_MASK (IP_VS_CONN_F_FWD_MASK \| \
	117	IP_VS_CONN_F_ONE_PACKET \| \
f4bc17cd	118	IP_VS_CONN_F_NFCT \| \
3575792e JA	119	0)
3575792e JA	120
bc4768eb	121	#define IP_VS_SCHEDNAME_MAXLEN 16
85999283	122	#define IP_VS_PENAME_MAXLEN 16
bc4768eb JV	123	#define IP_VS_IFNAME_MAXLEN 16
bc4768eb JV	124
85999283	125	#define IP_VS_PEDATA_MAXLEN 255
bc4768eb JV	126
	127	/*
	128	* The struct ip_vs_service_user and struct ip_vs_dest_user are
	129	* used to set IPVS rules through setsockopt.
	130	*/
	131	struct ip_vs_service_user {
	132	/* virtual service addresses */
9adfbfb6	133	__u16 protocol;
bc4768eb JV	134	__be32 addr; /* virtual ip address */
bc4768eb JV	135	__be16 port;
9adfbfb6	136	__u32 fwmark; /* firwall mark of service */
bc4768eb JV	137
	138	/* virtual service options */
	139	char sched_name[IP_VS_SCHEDNAME_MAXLEN];
95c96174 ED	140	unsigned int flags; /* virtual service flags */
95c96174 ED	141	unsigned int timeout; /* persistent timeout in sec */
bc4768eb JV	142	__be32 netmask; /* persistent netmask */
	143	};
	144
	145
	146	struct ip_vs_dest_user {
	147	/* destination server address */
	148	__be32 addr;
	149	__be16 port;
	150
	151	/* real server options */
95c96174	152	unsigned int conn_flags; /* connection flags */
bc4768eb JV	153	int weight; /* destination weight */
	154
	155	/* thresholds for active connections */
9adfbfb6 AB	156	__u32 u_threshold; /* upper threshold */
9adfbfb6 AB	157	__u32 l_threshold; /* lower threshold */
bc4768eb JV	158	};
	159
	160
	161	/*
	162	* IPVS statistics object (for user space)
	163	*/
d94d9fee	164	struct ip_vs_stats_user {
bc4768eb JV	165	__u32 conns; /* connections scheduled */
	166	__u32 inpkts; /* incoming packets */
	167	__u32 outpkts; /* outgoing packets */
	168	__u64 inbytes; /* incoming bytes */
	169	__u64 outbytes; /* outgoing bytes */
	170
	171	__u32 cps; /* current connection rate */
	172	__u32 inpps; /* current in packet rate */
	173	__u32 outpps; /* current out packet rate */
	174	__u32 inbps; /* current in byte rate */
	175	__u32 outbps; /* current out byte rate */
	176	};
	177
	178
	179	/* The argument to IP_VS_SO_GET_INFO */
	180	struct ip_vs_getinfo {
	181	/* version number */
	182	unsigned int version;
	183
	184	/* size of connection hash table */
	185	unsigned int size;
	186
	187	/* number of virtual services */
	188	unsigned int num_services;
	189	};
	190
	191
	192	/* The argument to IP_VS_SO_GET_SERVICE */
	193	struct ip_vs_service_entry {
	194	/* which service: user fills in these */
9adfbfb6	195	__u16 protocol;
bc4768eb JV	196	__be32 addr; /* virtual address */
bc4768eb JV	197	__be16 port;
9adfbfb6	198	__u32 fwmark; /* firwall mark of service */
bc4768eb JV	199
	200	/* service options */
	201	char sched_name[IP_VS_SCHEDNAME_MAXLEN];
95c96174 ED	202	unsigned int flags; /* virtual service flags */
95c96174 ED	203	unsigned int timeout; /* persistent timeout */
bc4768eb JV	204	__be32 netmask; /* persistent netmask */
	205
	206	/* number of real servers */
	207	unsigned int num_dests;
	208
	209	/* statistics */
	210	struct ip_vs_stats_user stats;
	211	};
	212
	213
	214	struct ip_vs_dest_entry {
	215	__be32 addr; /* destination address */
	216	__be16 port;
95c96174	217	unsigned int conn_flags; /* connection flags */
bc4768eb JV	218	int weight; /* destination weight */
bc4768eb JV	219
9adfbfb6 AB	220	__u32 u_threshold; /* upper threshold */
9adfbfb6 AB	221	__u32 l_threshold; /* lower threshold */
bc4768eb	222
9adfbfb6 AB	223	__u32 activeconns; /* active connections */
	224	__u32 inactconns; /* inactive connections */
	225	__u32 persistconns; /* persistent connections */
bc4768eb JV	226
	227	/* statistics */
	228	struct ip_vs_stats_user stats;
	229	};
	230
	231
	232	/* The argument to IP_VS_SO_GET_DESTS */
	233	struct ip_vs_get_dests {
	234	/* which service: user fills in these */
9adfbfb6	235	__u16 protocol;
bc4768eb JV	236	__be32 addr; /* virtual address */
bc4768eb JV	237	__be16 port;
9adfbfb6	238	__u32 fwmark; /* firwall mark of service */
bc4768eb JV	239
	240	/* number of real servers */
	241	unsigned int num_dests;
	242
	243	/* the real servers */
	244	struct ip_vs_dest_entry entrytable[0];
	245	};
	246
	247
	248	/* The argument to IP_VS_SO_GET_SERVICES */
	249	struct ip_vs_get_services {
	250	/* number of virtual services */
	251	unsigned int num_services;
	252
	253	/* service table */
	254	struct ip_vs_service_entry entrytable[0];
	255	};
	256
	257
	258	/* The argument to IP_VS_SO_GET_TIMEOUT */
	259	struct ip_vs_timeout_user {
	260	int tcp_timeout;
	261	int tcp_fin_timeout;
	262	int udp_timeout;
	263	};
	264
	265
	266	/* The argument to IP_VS_SO_GET_DAEMON */
	267	struct ip_vs_daemon_user {
	268	/* sync daemon state (master/backup) */
	269	int state;
	270
	271	/* multicast interface name */
	272	char mcast_ifn[IP_VS_IFNAME_MAXLEN];
	273
	274	/* SyncID we belong to */
	275	int syncid;
	276	};
	277
c1bc667e JV	278	/*
	279	*
	280	* IPVS Generic Netlink interface definitions
	281	*
	282	*/
	283
	284	/* Generic Netlink family info */
	285
	286	#define IPVS_GENL_NAME "IPVS"
	287	#define IPVS_GENL_VERSION 0x1
	288
	289	struct ip_vs_flags {
0a925864 JA	290	__u32 flags;
0a925864 JA	291	__u32 mask;
c1bc667e JV	292	};
	293
	294	/* Generic Netlink command attributes */
	295	enum {
	296	IPVS_CMD_UNSPEC = 0,
	297
	298	IPVS_CMD_NEW_SERVICE, /* add service */
	299	IPVS_CMD_SET_SERVICE, /* modify service */
	300	IPVS_CMD_DEL_SERVICE, /* delete service */
	301	IPVS_CMD_GET_SERVICE, /* get service info */
	302
	303	IPVS_CMD_NEW_DEST, /* add destination */
	304	IPVS_CMD_SET_DEST, /* modify destination */
	305	IPVS_CMD_DEL_DEST, /* delete destination */
	306	IPVS_CMD_GET_DEST, /* get destination info */
	307
	308	IPVS_CMD_NEW_DAEMON, /* start sync daemon */
	309	IPVS_CMD_DEL_DAEMON, /* stop sync daemon */
	310	IPVS_CMD_GET_DAEMON, /* get sync daemon status */
	311
	312	IPVS_CMD_SET_CONFIG, /* set config settings */
	313	IPVS_CMD_GET_CONFIG, /* get config settings */
	314
	315	IPVS_CMD_SET_INFO, /* only used in GET_INFO reply */
	316	IPVS_CMD_GET_INFO, /* get general IPVS info */
	317
	318	IPVS_CMD_ZERO, /* zero all counters and stats */
	319	IPVS_CMD_FLUSH, /* flush services and dests */
	320
	321	__IPVS_CMD_MAX,
	322	};
	323
	324	#define IPVS_CMD_MAX (__IPVS_CMD_MAX - 1)
	325
	326	/* Attributes used in the first level of commands */
	327	enum {
	328	IPVS_CMD_ATTR_UNSPEC = 0,
	329	IPVS_CMD_ATTR_SERVICE, /* nested service attribute */
	330	IPVS_CMD_ATTR_DEST, /* nested destination attribute */
	331	IPVS_CMD_ATTR_DAEMON, /* nested sync daemon attribute */
	332	IPVS_CMD_ATTR_TIMEOUT_TCP, /* TCP connection timeout */
	333	IPVS_CMD_ATTR_TIMEOUT_TCP_FIN, /* TCP FIN wait timeout */
	334	IPVS_CMD_ATTR_TIMEOUT_UDP, /* UDP timeout */
	335	__IPVS_CMD_ATTR_MAX,
	336	};
	337
120c9794	338	#define IPVS_CMD_ATTR_MAX (__IPVS_CMD_ATTR_MAX - 1)
c1bc667e JV	339
	340	/*
	341	* Attributes used to describe a service
	342	*
	343	* Used inside nested attribute IPVS_CMD_ATTR_SERVICE
	344	*/
	345	enum {
	346	IPVS_SVC_ATTR_UNSPEC = 0,
	347	IPVS_SVC_ATTR_AF, /* address family */
	348	IPVS_SVC_ATTR_PROTOCOL, /* virtual service protocol */
	349	IPVS_SVC_ATTR_ADDR, /* virtual service address */
	350	IPVS_SVC_ATTR_PORT, /* virtual service port */
	351	IPVS_SVC_ATTR_FWMARK, /* firewall mark of service */
	352
	353	IPVS_SVC_ATTR_SCHED_NAME, /* name of scheduler */
	354	IPVS_SVC_ATTR_FLAGS, /* virtual service flags */
	355	IPVS_SVC_ATTR_TIMEOUT, /* persistent timeout */
	356	IPVS_SVC_ATTR_NETMASK, /* persistent netmask */
	357
	358	IPVS_SVC_ATTR_STATS, /* nested attribute for service stats */
0d1e71b0 SH	359
	360	IPVS_SVC_ATTR_PE_NAME, /* name of ct retriever */
	361
cd67cd5e JA	362	IPVS_SVC_ATTR_STATS64, /* nested attribute for service stats */
cd67cd5e JA	363
c1bc667e JV	364	__IPVS_SVC_ATTR_MAX,
	365	};
	366
	367	#define IPVS_SVC_ATTR_MAX (__IPVS_SVC_ATTR_MAX - 1)
	368
	369	/*
	370	* Attributes used to describe a destination (real server)
	371	*
	372	* Used inside nested attribute IPVS_CMD_ATTR_DEST
	373	*/
	374	enum {
	375	IPVS_DEST_ATTR_UNSPEC = 0,
	376	IPVS_DEST_ATTR_ADDR, /* real server address */
	377	IPVS_DEST_ATTR_PORT, /* real server port */
	378
	379	IPVS_DEST_ATTR_FWD_METHOD, /* forwarding method */
	380	IPVS_DEST_ATTR_WEIGHT, /* destination weight */
	381
	382	IPVS_DEST_ATTR_U_THRESH, /* upper threshold */
	383	IPVS_DEST_ATTR_L_THRESH, /* lower threshold */
	384
	385	IPVS_DEST_ATTR_ACTIVE_CONNS, /* active connections */
	386	IPVS_DEST_ATTR_INACT_CONNS, /* inactive connections */
	387	IPVS_DEST_ATTR_PERSIST_CONNS, /* persistent connections */
	388
	389	IPVS_DEST_ATTR_STATS, /* nested attribute for dest stats */
6cff339b AG	390
	391	IPVS_DEST_ATTR_ADDR_FAMILY, /* Address family of address */
	392
cd67cd5e JA	393	IPVS_DEST_ATTR_STATS64, /* nested attribute for dest stats */
cd67cd5e JA	394
c1bc667e JV	395	__IPVS_DEST_ATTR_MAX,
	396	};
	397
	398	#define IPVS_DEST_ATTR_MAX (__IPVS_DEST_ATTR_MAX - 1)
	399
	400	/*
	401	* Attributes describing a sync daemon
	402	*
	403	* Used inside nested attribute IPVS_CMD_ATTR_DAEMON
	404	*/
	405	enum {
	406	IPVS_DAEMON_ATTR_UNSPEC = 0,
	407	IPVS_DAEMON_ATTR_STATE, /* sync daemon state (master/backup) */
	408	IPVS_DAEMON_ATTR_MCAST_IFN, /* multicast interface name */
	409	IPVS_DAEMON_ATTR_SYNC_ID, /* SyncID we belong to */
e4ff6751	410	IPVS_DAEMON_ATTR_SYNC_MAXLEN, /* UDP Payload Size */
d3328817 JA	411	IPVS_DAEMON_ATTR_MCAST_GROUP, /* IPv4 Multicast Address */
	412	IPVS_DAEMON_ATTR_MCAST_GROUP6, /* IPv6 Multicast Address */
	413	IPVS_DAEMON_ATTR_MCAST_PORT, /* Multicast Port (base) */
	414	IPVS_DAEMON_ATTR_MCAST_TTL, /* Multicast TTL */
c1bc667e JV	415	__IPVS_DAEMON_ATTR_MAX,
	416	};
	417
	418	#define IPVS_DAEMON_ATTR_MAX (__IPVS_DAEMON_ATTR_MAX - 1)
	419
	420	/*
	421	* Attributes used to describe service or destination entry statistics
	422	*
cd67cd5e JA	423	* Used inside nested attributes IPVS_SVC_ATTR_STATS, IPVS_DEST_ATTR_STATS,
cd67cd5e JA	424	* IPVS_SVC_ATTR_STATS64 and IPVS_DEST_ATTR_STATS64.
c1bc667e JV	425	*/
	426	enum {
	427	IPVS_STATS_ATTR_UNSPEC = 0,
	428	IPVS_STATS_ATTR_CONNS, /* connections scheduled */
	429	IPVS_STATS_ATTR_INPKTS, /* incoming packets */
	430	IPVS_STATS_ATTR_OUTPKTS, /* outgoing packets */
	431	IPVS_STATS_ATTR_INBYTES, /* incoming bytes */
	432	IPVS_STATS_ATTR_OUTBYTES, /* outgoing bytes */
	433
	434	IPVS_STATS_ATTR_CPS, /* current connection rate */
	435	IPVS_STATS_ATTR_INPPS, /* current in packet rate */
	436	IPVS_STATS_ATTR_OUTPPS, /* current out packet rate */
	437	IPVS_STATS_ATTR_INBPS, /* current in byte rate */
	438	IPVS_STATS_ATTR_OUTBPS, /* current out byte rate */
cbdeafd7	439	IPVS_STATS_ATTR_PAD,
c1bc667e JV	440	__IPVS_STATS_ATTR_MAX,
	441	};
	442
	443	#define IPVS_STATS_ATTR_MAX (__IPVS_STATS_ATTR_MAX - 1)
	444
	445	/* Attributes used in response to IPVS_CMD_GET_INFO command */
	446	enum {
	447	IPVS_INFO_ATTR_UNSPEC = 0,
	448	IPVS_INFO_ATTR_VERSION, /* IPVS version number */
	449	IPVS_INFO_ATTR_CONN_TAB_SIZE, /* size of connection hash table */
	450	__IPVS_INFO_ATTR_MAX,
	451	};
	452
	453	#define IPVS_INFO_ATTR_MAX (__IPVS_INFO_ATTR_MAX - 1)
	454
bc4768eb	455	#endif /* _IP_VS_H */