1 /* tcp_fsm.h 4.7 81/11/24 */ 2 3 /* 4 * TCP FSM state definitions. 5 * Per RFC793, September, 1981. 6 */ 7 8 #define TCP_NSTATES 11 9 10 #define TCPS_CLOSED 0 /* closed */ 11 #define TCPS_LISTEN 1 /* listening for connection */ 12 #define TCPS_SYN_SENT 2 /* active, have sent syn */ 13 #define TCPS_SYN_RCVD 3 /* have send and received syn */ 14 #define TCPS_ESTABLISHED 4 /* established */ 15 #define TCPS_FIN_WAIT_1 5 /* have closed, sent fin */ 16 #define TCPS_FIN_WAIT_2 6 /* have closed, fin is acked */ 17 #define TCPS_TIME_WAIT 7 /* in 2*msl quiet wait after close */ 18 #define TCPS_CLOSE_WAIT 8 /* rcvd fin, waiting for close */ 19 #define TCPS_CLOSING 9 /* closed xchd FIN; await FIN ACK */ 20 #define TCPS_LAST_ACK 10 /* had fin and close; await FIN ACK */ 21 22 #define TCPS_HAVERCVDSYN(s) ((s) >= TCPS_SYN_RCVD) 23 #define TCPS_HAVERCVDFIN(s) ((s) >= TCPS_TIME_WAIT) 24 25 #ifdef KPROF 26 int tcp_acounts[TCP_NSTATES][PRU_NREQ]; 27 #endif 28 29 #ifdef TCPSTATES 30 char *tcpstates[] = { 31 "CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD", 32 "ESTABLISHED", "FIN_WAIT1", "FIN_WAIT2", "TIME_WAIT", 33 "CLOSE_WAIT", "CLOSING", "LAST_ACK", 34 }; 35 #endif 36