xnu-792.6.70.tar.gz

[apple/xnu.git] / bsd / netinet / tcp_timer.h

diff --git a/bsd/netinet/tcp_timer.h b/bsd/netinet/tcp_timer.h
index 03d29b83c42c89f306c3a8bc958c1072a81f320e..e4979a07864510f2eb961762bed781b1e31ba439 100644 (file)
--- a/bsd/netinet/tcp_timer.h
+++ b/bsd/netinet/tcp_timer.h
@@ -52,10 +52,12 @@
  * SUCH DAMAGE.
  *
  *     @(#)tcp_timer.h 8.1 (Berkeley) 6/10/93
+ * $FreeBSD: src/sys/netinet/tcp_timer.h,v 1.18 1999/12/29 04:41:03 peter Exp $
  */
 
 #ifndef _NETINET_TCP_TIMER_H_
 #define _NETINET_TCP_TIMER_H_
+#include <sys/appleapiopts.h>
 
 /*
  * Definitions of the TCP timers.  These timers are counted
@@ -104,6 +106,8 @@
  * amount of time probing, then we drop the connection.
  */
 
+#ifdef PRIVATE
+
 /*
  * Time constants.
  */
@@ -130,28 +134,46 @@
 
 #define        TCP_MAXRXTSHIFT 12                      /* maximum retransmits */
 
+#define        TCPTV_DELACK    PR_FASTHZ               /* 125ms timeout */
+
 #ifdef TCPTIMERS
 static char *tcptimers[] =
     { "REXMT", "PERSIST", "KEEP", "2MSL" };
 #endif
 
+#ifdef KERNEL
 /*
  * Force a time value to be in a certain range.
  */
-#define        TCPT_RANGESET(tv, value, tvmin, tvmax) { \
+#define        TCPT_RANGESET(tv, value, tvmin, tvmax) do { \
        (tv) = (value); \
        if ((u_long)(tv) < (u_long)(tvmin)) \
                (tv) = (tvmin); \
        else if ((u_long)(tv) > (u_long)(tvmax)) \
                (tv) = (tvmax); \
-}
+} while(0)
+
+#define TCP_KEEPIDLE(tp) \
+       (tp->t_keepidle && (tp->t_inpcb->inp_socket->so_options & SO_KEEPALIVE) ? \
+               tp->t_keepidle : tcp_keepidle)
 
-#ifdef KERNEL
 extern int tcp_keepinit;               /* time to establish connection */
 extern int tcp_keepidle;               /* time before keepalive probes begin */
+extern int tcp_keepintvl;              /* time between keepalive probes */
 extern int tcp_maxidle;                        /* time to drop after starting probes */
+extern int tcp_delacktime;             /* time before sending a delayed ACK */
+extern int tcp_maxpersistidle;
+extern int tcp_msl;
 extern int tcp_ttl;                    /* time to live for TCP segs */
 extern int tcp_backoff[];
-#endif
 
-#endif
+void   tcp_timer_2msl(void *xtp);
+void   tcp_timer_keep(void *xtp);
+void   tcp_timer_persist(void *xtp);
+void   tcp_timer_rexmt(void *xtp);
+void   tcp_timer_delack(void *xtp);
+
+#endif /* KERNEL */
+#endif /* PRIVATE */
+#endif /* !_NETINET_TCP_TIMER_H_ */
+