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Edit File : ip_vs.h \| Size : 13.31 KB
/* 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 */ Back

Edit File : ip_vs.h | Size : 13.31 KB

/* 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 */

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