Return to tcp_fsm.h CVS log

Up to [CSRG BSD Unix] / 43BSDReno / sys / netinet

Annotation of 43BSDReno/sys/netinet/tcp_fsm.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution is only permitted until one year after the first shipment
        !             6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !             7:  * binary forms are permitted provided that: (1) source distributions retain
        !             8:  * this entire copyright notice and comment, and (2) distributions including
        !             9:  * binaries display the following acknowledgement:  This product includes
        !            10:  * software developed by the University of California, Berkeley and its
        !            11:  * contributors'' in the documentation or other materials provided with the
        !            12:  * distribution and in all advertising materials mentioning features or use
        !            13:  * of this software.  Neither the name of the University nor the names of
        !            14:  * its contributors may be used to endorse or promote products derived from
        !            15:  * this software without specific prior written permission.
        !            16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            19:  *
        !            20:  *     @(#)tcp_fsm.h   7.4 (Berkeley) 6/28/90
        !            21:  */
        !            22: 
        !            23: /*
        !            24:  * TCP FSM state definitions.
        !            25:  * Per RFC793, September, 1981.
        !            26:  */
        !            27: 
        !            28: #define        TCP_NSTATES     11
        !            29: 
        !            30: #define        TCPS_CLOSED             0       /* closed */
        !            31: #define        TCPS_LISTEN             1       /* listening for connection */
        !            32: #define        TCPS_SYN_SENT           2       /* active, have sent syn */
        !            33: #define        TCPS_SYN_RECEIVED       3       /* have send and received syn */
        !            34: /* states < TCPS_ESTABLISHED are those where connections not established */
        !            35: #define        TCPS_ESTABLISHED        4       /* established */
        !            36: #define        TCPS_CLOSE_WAIT         5       /* rcvd fin, waiting for close */
        !            37: /* states > TCPS_CLOSE_WAIT are those where user has closed */
        !            38: #define        TCPS_FIN_WAIT_1         6       /* have closed, sent fin */
        !            39: #define        TCPS_CLOSING            7       /* closed xchd FIN; await FIN ACK */
        !            40: #define        TCPS_LAST_ACK           8       /* had fin and close; await FIN ACK */
        !            41: /* states > TCPS_CLOSE_WAIT && < TCPS_FIN_WAIT_2 await ACK of FIN */
        !            42: #define        TCPS_FIN_WAIT_2         9       /* have closed, fin is acked */
        !            43: #define        TCPS_TIME_WAIT          10      /* in 2*msl quiet wait after close */
        !            44: 
        !            45: #define        TCPS_HAVERCVDSYN(s)     ((s) >= TCPS_SYN_RECEIVED)
        !            46: #define        TCPS_HAVERCVDFIN(s)     ((s) >= TCPS_TIME_WAIT)
        !            47: 
        !            48: #ifdef TCPOUTFLAGS
        !            49: /*
        !            50:  * Flags used when sending segments in tcp_output.
        !            51:  * Basic flags (TH_RST,TH_ACK,TH_SYN,TH_FIN) are totally
        !            52:  * determined by state, with the proviso that TH_FIN is sent only
        !            53:  * if all data queued for output is included in the segment.
        !            54:  */
        !            55: u_char tcp_outflags[TCP_NSTATES] = {
        !            56:     TH_RST|TH_ACK, 0, TH_SYN, TH_SYN|TH_ACK,
        !            57:     TH_ACK, TH_ACK,
        !            58:     TH_FIN|TH_ACK, TH_FIN|TH_ACK, TH_FIN|TH_ACK, TH_ACK, TH_ACK,
        !            59: };
        !            60: #endif
        !            61: 
        !            62: #ifdef KPROF
        !            63: int    tcp_acounts[TCP_NSTATES][PRU_NREQ];
        !            64: #endif
        !            65: 
        !            66: #ifdef TCPSTATES
        !            67: char *tcpstates[] = {
        !            68:        "CLOSED",       "LISTEN",       "SYN_SENT",     "SYN_RCVD",
        !            69:        "ESTABLISHED",  "CLOSE_WAIT",   "FIN_WAIT_1",   "CLOSING",
        !            70:        "LAST_ACK",     "FIN_WAIT_2",   "TIME_WAIT",
        !            71: };
        !            72: #endif

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.