tcp_var.h File Reference

#include <netinet/tcp.h>

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Data Structures
struct	tcpstat

Macros
#define	TCP_RTT_SCALE   32 /* multiplier for srtt; 3 bits frac. */
#define	TCP_RTT_SHIFT   5 /* shift for srtt; 3 bits frac. */
#define	TCP_RTTVAR_SCALE   16 /* multiplier for rttvar; 2 bits */
#define	TCP_RTTVAR_SHIFT   4 /* shift for rttvar; 2 bits */
#define	TCP_DELTA_SHIFT   2 /* see tcp_input.c */
#define	TCP_REXMTVAL(tp)
#define	REASS_MBUF(ti)   (*(struct mbuf **)&((ti)->ti_t))
#define	TCPCTL_DO_RFC1323   1 /* use RFC-1323 extensions */
#define	TCPCTL_DO_RFC1644   2 /* use RFC-1644 extensions */
#define	TCPCTL_MSSDFLT   3 /* MSS default */
#define	TCPCTL_STATS   4 /* statistics (read-only) */
#define	TCPCTL_RTTDFLT   5 /* default RTT estimate */
#define	TCPCTL_KEEPIDLE   6 /* keepalive idle timer */
#define	TCPCTL_KEEPINTVL   7 /* interval to send keepalives */
#define	TCPCTL_SENDSPACE   8 /* send buffer space */
#define	TCPCTL_RECVSPACE   9 /* receive buffer space */
#define	TCPCTL_KEEPINIT   10 /* timeout for establishing syn */
#define	TCPCTL_PCBLIST   11 /* list of all outstanding PCBs */
#define	TCPCTL_MAXID   12
#define	TCPCTL_NAMES

Macro Definition Documentation

TCP_REXMTVAL

#define TCP_REXMTVAL

(

tp

)

Value:

((((tp)->t_srtt >> (TCP_RTT_SHIFT - TCP_DELTA_SHIFT))  \
          + (tp)->t_rttvar) >> TCP_DELTA_SHIFT)

TCPCTL_NAMES

#define TCPCTL_NAMES

Value:

{ \
        { 0, 0 }, \
        { "rfc1323", CTLTYPE_INT }, \
        { "rfc1644", CTLTYPE_INT }, \
        { "mssdflt", CTLTYPE_INT }, \
        { "stats", CTLTYPE_STRUCT }, \
        { "rttdflt", CTLTYPE_INT }, \
        { "keepidle", CTLTYPE_INT }, \
        { "keepintvl", CTLTYPE_INT }, \
        { "sendspace", CTLTYPE_INT }, \
        { "recvspace", CTLTYPE_INT }, \
        { "keepinit", CTLTYPE_INT }, \
}