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Make the misnamed tcp initial keepalive timer value (which is really the
time, in seconds, that state for non-established TCP sessions stays about) a sysctl modifyable variable. [part 1 of two commits, I just realized I can't play with the indices as I was typing this commit message.]
This commit is contained in:
Paul Traina
parent
e295af15d1
commit
7b40aa327d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=18280
@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* @(#)tcp_input.c 8.12 (Berkeley) 5/24/95
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* $Id: tcp_input.c,v 1.46 1996/05/02 05:54:12 fenner Exp $
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* $Id: tcp_input.c,v 1.47 1996/09/13 18:47:03 pst Exp $
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*/
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#ifndef TUBA_INCLUDE
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@ -715,7 +715,7 @@ findpcb:
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tp->rcv_adv += min(tp->rcv_wnd, TCP_MAXWIN);
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tcpstat.tcps_connects++;
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soisconnected(so);
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tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT;
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tp->t_timer[TCPT_KEEP] = tcp_keepinit;
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dropsocket = 0; /* committed to socket */
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tcpstat.tcps_accepts++;
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goto trimthenstep6;
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@ -734,7 +734,7 @@ findpcb:
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*/
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tp->t_flags |= TF_ACKNOW;
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tp->t_state = TCPS_SYN_RECEIVED;
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tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT;
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tp->t_timer[TCPT_KEEP] = tcp_keepinit;
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dropsocket = 0; /* committed to socket */
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tcpstat.tcps_accepts++;
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goto trimthenstep6;
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* @(#)tcp_input.c 8.12 (Berkeley) 5/24/95
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* $Id: tcp_input.c,v 1.46 1996/05/02 05:54:12 fenner Exp $
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* $Id: tcp_input.c,v 1.47 1996/09/13 18:47:03 pst Exp $
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*/
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#ifndef TUBA_INCLUDE
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@ -715,7 +715,7 @@ findpcb:
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tp->rcv_adv += min(tp->rcv_wnd, TCP_MAXWIN);
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tcpstat.tcps_connects++;
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soisconnected(so);
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tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT;
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tp->t_timer[TCPT_KEEP] = tcp_keepinit;
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dropsocket = 0; /* committed to socket */
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tcpstat.tcps_accepts++;
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goto trimthenstep6;
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@ -734,7 +734,7 @@ findpcb:
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*/
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tp->t_flags |= TF_ACKNOW;
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tp->t_state = TCPS_SYN_RECEIVED;
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tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT;
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tp->t_timer[TCPT_KEEP] = tcp_keepinit;
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dropsocket = 0; /* committed to socket */
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tcpstat.tcps_accepts++;
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goto trimthenstep6;
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* @(#)tcp_timer.c 8.2 (Berkeley) 5/24/95
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* $Id: tcp_timer.c,v 1.18 1996/07/11 16:32:35 wollman Exp $
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* $Id: tcp_timer.c,v 1.19 1996/07/12 17:28:46 davidg Exp $
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*/
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#ifndef TUBA_INCLUDE
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@ -67,6 +67,10 @@
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#include <netinet/tcp_debug.h>
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#endif
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int tcp_keepinit = TCPTV_KEEP_INIT;
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SYSCTL_INT(_net_inet_tcp, TCPCTL_KEEPINIT, keepinit,
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CTLFLAG_RW, &tcp_keepinit , 0, "");
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int tcp_keepidle = TCPTV_KEEP_IDLE;
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SYSCTL_INT(_net_inet_tcp, TCPCTL_KEEPIDLE, keepidle,
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CTLFLAG_RW, &tcp_keepidle , 0, "");
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* @(#)tcp_timer.h 8.1 (Berkeley) 6/10/93
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* $Id: tcp_timer.h,v 1.8 1996/01/30 22:58:29 mpp Exp $
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* $Id: tcp_timer.h,v 1.9 1996/06/14 17:17:32 wollman Exp $
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*/
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#ifndef _NETINET_TCP_TIMER_H_
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@ -127,6 +127,7 @@ static char *tcptimers[] =
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}
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#ifdef KERNEL
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extern int tcp_keepinit; /* time to establish connection */
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extern int tcp_keepidle; /* time before keepalive probes begin */
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extern int tcp_keepintvl; /* time between keepalive probes */
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extern int tcp_maxidle; /* time to drop after starting probes */
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* From: @(#)tcp_usrreq.c 8.2 (Berkeley) 1/3/94
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* $Id: tcp_usrreq.c,v 1.23 1996/07/11 16:32:38 wollman Exp $
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* $Id: tcp_usrreq.c,v 1.24 1996/07/12 17:28:47 davidg Exp $
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*/
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#include <sys/param.h>
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@ -891,7 +891,7 @@ tcp_connect(tp, nam)
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soisconnecting(so);
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tcpstat.tcps_connattempt++;
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tp->t_state = TCPS_SYN_SENT;
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tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT;
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tp->t_timer[TCPT_KEEP] = tcp_keepinit;
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tp->iss = tcp_iss; tcp_iss += TCP_ISSINCR/2;
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tcp_sendseqinit(tp);
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* @(#)tcp_var.h 8.4 (Berkeley) 5/24/95
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* $Id: tcp_var.h,v 1.33 1996/06/05 16:57:38 wollman Exp $
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* $Id: tcp_var.h,v 1.34 1996/07/11 16:32:40 wollman Exp $
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*/
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#ifndef _NETINET_TCP_VAR_H_
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@ -307,9 +307,10 @@ struct tcpstat {
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#define TCPCTL_RTTDFLT 5 /* default RTT estimate */
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#define TCPCTL_KEEPIDLE 6 /* keepalive idle timer */
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#define TCPCTL_KEEPINTVL 7 /* interval to send keepalives */
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#define TCPCTL_SENDSPACE 8 /* send buffer space */
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#define TCPCTL_RECVSPACE 9 /* receive buffer space */
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#define TCPCTL_MAXID 10
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#define TCPCTL_KEEPINIT 8 /* timeout for establishing syn */
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#define TCPCTL_SENDSPACE 9 /* send buffer space */
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#define TCPCTL_RECVSPACE 10 /* receive buffer space */
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#define TCPCTL_MAXID 11
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#define TCPCTL_NAMES { \
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{ 0, 0 }, \
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@ -320,6 +321,7 @@ struct tcpstat {
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{ "rttdflt", CTLTYPE_INT }, \
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{ "keepidle", CTLTYPE_INT }, \
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{ "keepintvl", CTLTYPE_INT }, \
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{ "keepinit", CTLTYPE_INT }, \
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{ "sendspace", CTLTYPE_INT }, \
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{ "recvspace", CTLTYPE_INT }, \
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}
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