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