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+++ b/packages/net/tcpip/current/include/netinet/tcp_fsm.h
@@ -0,0 +1,149 @@
+//==========================================================================
+//
+//      include/netinet_tcp_fsm.h
+//
+//      
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//####BSDCOPYRIGHTBEGIN####
+//
+// -------------------------------------------
+//
+// Portions of this software may have been derived from OpenBSD or other sources,
+// and are covered by the appropriate copyright disclaimers included herein.
+//
+// -------------------------------------------
+//
+//####BSDCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    gthomas
+// Contributors: gthomas
+// Date:         2000-01-10
+// Purpose:      
+// Description:  
+//              
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+
+/*	$OpenBSD: tcp_fsm.h,v 1.4 1997/11/08 19:54:12 deraadt Exp $	*/
+/*	$NetBSD: tcp_fsm.h,v 1.6 1994/10/14 16:01:48 mycroft Exp $	*/
+
+/*
+ * Copyright (c) 1982, 1986, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)tcp_fsm.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _NETINET_TCP_FSM_H_
+#define _NETINET_TCP_FSM_H_
+
+/*
+ * TCP FSM state definitions.
+ * Per RFC793, September, 1981.
+ */
+
+#define	TCP_NSTATES	11
+
+#define	TCPS_CLOSED		0	/* closed */
+#define	TCPS_LISTEN		1	/* listening for connection */
+#define	TCPS_SYN_SENT		2	/* active, have sent syn */
+#define	TCPS_SYN_RECEIVED	3	/* have sent and received syn */
+/* states < TCPS_ESTABLISHED are those where connections not established */
+#define	TCPS_ESTABLISHED	4	/* established */
+#define	TCPS_CLOSE_WAIT		5	/* rcvd fin, waiting for close */
+/* states > TCPS_CLOSE_WAIT are those where user has closed */
+#define	TCPS_FIN_WAIT_1		6	/* have closed, sent fin */
+#define	TCPS_CLOSING		7	/* closed xchd FIN; await ACK */
+#define	TCPS_LAST_ACK		8	/* had fin and close; await FIN ACK */
+/* states > TCPS_CLOSE_WAIT && < TCPS_FIN_WAIT_2 await ACK of FIN */
+#define	TCPS_FIN_WAIT_2		9	/* have closed, fin is acked */
+#define	TCPS_TIME_WAIT		10	/* in 2*msl quiet wait after close */
+
+#define	TCPS_HAVERCVDSYN(s)	((s) >= TCPS_SYN_RECEIVED)
+#define	TCPS_HAVEESTABLISHED(s)	((s) >= TCPS_ESTABLISHED)
+#define	TCPS_HAVERCVDFIN(s)	((s) >= TCPS_TIME_WAIT)
+
+#ifdef	TCPOUTFLAGS
+/*
+ * Flags used when sending segments in tcp_output.
+ * Basic flags (TH_RST,TH_ACK,TH_SYN,TH_FIN) are totally
+ * determined by state, with the proviso that TH_FIN is sent only
+ * if all data queued for output is included in the segment.
+ */
+u_char	tcp_outflags[TCP_NSTATES] = {
+    TH_RST|TH_ACK, 0, TH_SYN, TH_SYN|TH_ACK,
+    TH_ACK, TH_ACK,
+    TH_FIN|TH_ACK, TH_ACK, TH_FIN|TH_ACK, TH_ACK, TH_ACK,
+};
+#endif
+
+#ifdef KPROF
+int	tcp_acounts[TCP_NSTATES][PRU_NREQ];
+#endif
+
+#ifdef	TCPSTATES
+char *tcpstates[] = {
+	"CLOSED",	"LISTEN",	"SYN_SENT",	"SYN_RCVD",
+	"ESTABLISHED",	"CLOSE_WAIT",	"FIN_WAIT_1",	"CLOSING",
+	"LAST_ACK",	"FIN_WAIT_2",	"TIME_WAIT",
+};
+#endif
+
+#endif // _NETINET_TCP_FSM_H_