include/linux/ip_vs.h - kernel/msm - Gitiles

 /*
  *      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 */

 /*
  *      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
  */
 #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_SCHEDNAME_MAXLEN	16
 #define IP_VS_IFNAME_MAXLEN	16


 /*
  *	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 */
 	u_int16_t		protocol;
 	__be32			addr;		/* virtual ip address */
 	__be16			port;
 	u_int32_t		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 */
 	u_int32_t		u_threshold;	/* upper threshold */
 	u_int32_t		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 */
 	u_int16_t		protocol;
 	__be32			addr;		/* virtual address */
 	__be16			port;
 	u_int32_t		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 */

 	u_int32_t		u_threshold;	/* upper threshold */
 	u_int32_t		l_threshold;	/* lower threshold */

 	u_int32_t		activeconns;	/* active connections */
 	u_int32_t		inactconns;	/* inactive connections */
 	u_int32_t		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 */
 	u_int16_t		protocol;
 	__be32			addr;		/* virtual address */
 	__be16			port;
 	u_int32_t		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;
 };

 #endif	/* _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 */

	/*
	* 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
	*/
	#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_SCHEDNAME_MAXLEN 16
	#define IP_VS_IFNAME_MAXLEN 16


	/*
	* 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 */
	u_int16_t protocol;
	__be32 addr; /* virtual ip address */
	__be16 port;
	u_int32_t 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 */
	u_int32_t u_threshold; /* upper threshold */
	u_int32_t 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 */
	u_int16_t protocol;
	__be32 addr; /* virtual address */
	__be16 port;
	u_int32_t 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 */

	u_int32_t u_threshold; /* upper threshold */
	u_int32_t l_threshold; /* lower threshold */

	u_int32_t activeconns; /* active connections */
	u_int32_t inactconns; /* inactive connections */
	u_int32_t 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 */
	u_int16_t protocol;
	__be32 addr; /* virtual address */
	__be16 port;
	u_int32_t 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;
	};

	#endif /* _IP_VS_H */