xnu-1228.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 e4979a07864510f2eb961762bed781b1e31ba439..ef29f41a3063481839371c7e5c76b527ae109176 100644 (file)
--- a/bsd/netinet/tcp_timer.h
+++ b/bsd/netinet/tcp_timer.h
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1982, 1986, 1993
@@ -111,22 +117,23 @@
 /*
  * Time constants.
  */
-#define        TCPTV_MSL       ( 30*PR_SLOWHZ)         /* max seg lifetime (hah!) */
+#define        TCPTV_MSL       ( 15*TCP_RETRANSHZ)             /* max seg lifetime (hah!) */
 #define        TCPTV_SRTTBASE  0                       /* base roundtrip time;
                                                   if 0, no idea yet */
-#define        TCPTV_RTOBASE   (  3*PR_SLOWHZ)         /* assumed RTO if no info */
-#define        TCPTV_SRTTDFLT  (  3*PR_SLOWHZ)         /* assumed RTT if no info */
+#define        TCPTV_RTOBASE   (  1*TCP_RETRANSHZ)             /* assumed RTO if no info */
+#define        TCPTV_SRTTDFLT  (  1*TCP_RETRANSHZ)             /* assumed RTT if no info */
 
-#define        TCPTV_PERSMIN   (  5*PR_SLOWHZ)         /* retransmit persistence */
-#define        TCPTV_PERSMAX   ( 60*PR_SLOWHZ)         /* maximum persist interval */
+#define        TCPTV_PERSMIN   (  5*TCP_RETRANSHZ)             /* retransmit persistence */
+#define        TCPTV_PERSMAX   ( 60*TCP_RETRANSHZ)             /* maximum persist interval */
 
-#define        TCPTV_KEEP_INIT ( 75*PR_SLOWHZ)         /* initial connect keep alive */
-#define        TCPTV_KEEP_IDLE (120*60*PR_SLOWHZ)      /* dflt time before probing */
-#define        TCPTV_KEEPINTVL ( 75*PR_SLOWHZ)         /* default probe interval */
+#define        TCPTV_KEEP_INIT ( 75*TCP_RETRANSHZ)             /* initial connect keep alive */
+#define        TCPTV_KEEP_IDLE (120*60*TCP_RETRANSHZ)  /* dflt time before probing */
+#define        TCPTV_KEEPINTVL ( 75*TCP_RETRANSHZ)             /* default probe interval */
 #define        TCPTV_KEEPCNT   8                       /* max probes before drop */
 
-#define        TCPTV_MIN       (  1*PR_SLOWHZ)         /* minimum allowable value */
-#define        TCPTV_REXMTMAX  ( 64*PR_SLOWHZ)         /* max allowable REXMT value */
+//#define      TCPTV_MIN       (  3*TCP_RETRANSHZ)             /* minimum allowable value */
+#define        TCPTV_MIN       (1)     /* minimum allowable value */
+#define        TCPTV_REXMTMAX  ( 64*TCP_RETRANSHZ)             /* max allowable REXMT value */
 
 #define TCPTV_TWTRUNC  8                       /* RTO factor to truncate TW */
 
@@ -134,8 +141,6 @@
 
 #define        TCP_MAXRXTSHIFT 12                      /* maximum retransmits */
 
-#define        TCPTV_DELACK    PR_FASTHZ               /* 125ms timeout */
-
 #ifdef TCPTIMERS
 static char *tcptimers[] =
     { "REXMT", "PERSIST", "KEEP", "2MSL" };
@@ -161,7 +166,6 @@ 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 */