/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * 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. * * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * 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 * $FreeBSD: src/sys/netinet/tcp_fsm.h,v 1.14 1999/11/07 04:18:30 jlemon Exp $ */ #ifndef _NETINET_TCP_FSM_H_ #define _NETINET_TCP_FSM_H_ #include /* * 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 send 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 FIN 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 */ /* for KAME src sync over BSD*'s */ #define TCP6_NSTATES TCP_NSTATES #define TCP6S_CLOSED TCPS_CLOSED #define TCP6S_LISTEN TCPS_LISTEN #define TCP6S_SYN_SENT TCPS_SYN_SENT #define TCP6S_SYN_RECEIVED TCPS_SYN_RECEIVED #define TCP6S_ESTABLISHED TCPS_ESTABLISHED #define TCP6S_CLOSE_WAIT TCPS_CLOSE_WAIT #define TCP6S_FIN_WAIT_1 TCPS_FIN_WAIT_1 #define TCP6S_CLOSING TCPS_CLOSING #define TCP6S_LAST_ACK TCPS_LAST_ACK #define TCP6S_FIN_WAIT_2 TCPS_FIN_WAIT_2 #define TCP6S_TIME_WAIT TCPS_TIME_WAIT #define TCPS_HAVERCVDSYN(s) ((s) >= TCPS_SYN_RECEIVED) #define TCPS_HAVEESTABLISHED(s) ((s) >= TCPS_ESTABLISHED) #define TCPS_HAVERCVDFIN(s) ((s) >= TCPS_TIME_WAIT) #define TCPS_HAVERCVDFIN2(s) ((s) == TCPS_CLOSE_WAIT || \ (s) == TCPS_CLOSING || \ (s) == TCPS_LAST_ACK || \ (s) == TCPS_TIME_WAIT) #ifdef KERNEL_PRIVATE #include /* * 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. */ static u_char tcp_outflags[TCP_NSTATES] = { TH_RST | TH_ACK, /* 0, CLOSED */ 0, /* 1, LISTEN */ TH_SYN, /* 2, SYN_SENT */ TH_SYN | TH_ACK, /* 3, SYN_RECEIVED */ TH_ACK, /* 4, ESTABLISHED */ TH_ACK, /* 5, CLOSE_WAIT */ TH_FIN | TH_ACK, /* 6, FIN_WAIT_1 */ TH_FIN | TH_ACK, /* 7, CLOSING */ TH_FIN | TH_ACK, /* 8, LAST_ACK */ TH_ACK, /* 9, FIN_WAIT_2 */ TH_ACK, /* 10, TIME_WAIT */ }; #endif /* KERNEL_PRIVATE */ #if KPROF #ifdef KERNEL_PRIVATE int tcp_acounts[TCP_NSTATES][PRU_NREQ]; #endif /* KERNEL_PRIVATE */ #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