1 /* 2 * Copyright (c) 1997-1998 by Sun Microsystems, Inc. 3 * All rights reserved. 4 */ 5 6 /* 7 * Copyright (c) 1982, 1986 Regents of the University of California. 8 * All rights reserved. The Berkeley software License Agreement 9 * specifies the terms and conditions for redistribution. 10 */ 11 12 /* 13 * TCP FSM state definitions. 14 * Per RFC793, September, 1981. 15 */ 16 17 #ifndef _NETINET_TCP_FSM_H 18 #define _NETINET_TCP_FSM_H 19 20 #pragma ident "%Z%%M% %I% %E% SMI" 21 /* tcp_fsm.h 1.7 88/08/19 SMI; from UCB 7.1 6/5/86 */ 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 #define TCP_NSTATES 11 28 29 #define TCPS_CLOSED 0 /* closed */ 30 #define TCPS_LISTEN 1 /* listening for connection */ 31 #define TCPS_SYN_SENT 2 /* active, have sent syn */ 32 #define TCPS_SYN_RECEIVED 3 /* have send and received syn */ 33 /* states < TCPS_ESTABLISHED are those where connections not established */ 34 #define TCPS_ESTABLISHED 4 /* established */ 35 #define TCPS_CLOSE_WAIT 5 /* rcvd fin, waiting for close */ 36 /* states > TCPS_CLOSE_WAIT are those where user has closed */ 37 #define TCPS_FIN_WAIT_1 6 /* have closed, sent fin */ 38 #define TCPS_CLOSING 7 /* closed xchd FIN; await FIN ACK */ 39 #define TCPS_LAST_ACK 8 /* had fin and close; await FIN ACK */ 40 /* states > TCPS_CLOSE_WAIT && < TCPS_FIN_WAIT_2 await ACK of FIN */ 41 #define TCPS_FIN_WAIT_2 9 /* have closed, fin is acked */ 42 #define TCPS_TIME_WAIT 10 /* in 2*msl quiet wait after close */ 43 44 #define TCPS_HAVERCVDSYN(s) ((s) >= TCPS_SYN_RECEIVED) 45 #define TCPS_HAVERCVDFIN(s) ((s) >= TCPS_TIME_WAIT) 46 47 #ifdef TCPOUTFLAGS 48 /* 49 * Flags used when sending segments in tcp_output. 50 * Basic flags (TH_RST,TH_ACK,TH_SYN,TH_FIN) are totally 51 * determined by state, with the proviso that TH_FIN is sent only 52 * if all data queued for output is included in the segment. 53 */ 54 uchar_t tcp_outflags[TCP_NSTATES] = { 55 TH_RST|TH_ACK, 0, TH_SYN, TH_SYN|TH_ACK, 56 TH_ACK, TH_ACK, 57 TH_FIN|TH_ACK, TH_FIN|TH_ACK, TH_FIN|TH_ACK, TH_ACK, TH_ACK, 58 }; 59 #endif 60 61 #ifdef KPROF 62 int tcp_acounts[TCP_NSTATES][PRU_NREQ]; 63 #endif 64 65 #ifdef TCPSTATES 66 char *tcpstates[] = { 67 "CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD", 68 "ESTABLISHED", "CLOSE_WAIT", "FIN_WAIT_1", "CLOSING", 69 "LAST_ACK", "FIN_WAIT_2", "TIME_WAIT", 70 }; 71 #endif 72 73 #ifdef __cplusplus 74 } 75 #endif 76 77 #endif /* _NETINET_TCP_FSM_H */ 78