xnu-792.17.14.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..dc734e62f07db6b36670e62e29f3074c1f2dd799 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
@@ -52,10 +58,12 @@
  * 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 +112,8 @@
  * amount of time probing, then we drop the connection.
  */
 
+#ifdef PRIVATE
+
 /*
  * Time constants.
  */
@@ -130,28 +140,46 @@
 
 #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_ */
+