[net-next-2.6.git] / include / linux / ip_vs.h

/*
 *      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 */

/*
 *      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 */

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