2121 	int ackskew, tcpflags;  in ipf_state_tcpinwindow()  local
2128 	tcpflags = tcp->th_flags;  in ipf_state_tcpinwindow()
2131 	if (tcpflags & TH_SYN)  in ipf_state_tcpinwindow()
2143 	        ((tcpflags & TH_SYN) ? 1 : 0) + ((tcpflags & TH_FIN) ? 1 : 0);  in ipf_state_tcpinwindow()
2156 	if (!(tcpflags & TH_SYN) && (fdata->td_winflags & TCP_WSCALE_FIRST)) {  in ipf_state_tcpinwindow()
2165 	     ((tcpflags & TH_OPENING) == TH_OPENING))) {  in ipf_state_tcpinwindow()
2174 	if (!(tcpflags & TH_ACK)) {  /* Pretend an ack was sent */  in ipf_state_tcpinwindow()
2176 	} else if (((tcpflags & (TH_ACK|TH_RST)) == (TH_ACK|TH_RST)) &&  in ipf_state_tcpinwindow()
2221 	} else if ((seq == 0) && (tcpflags == (TH_RST|TH_ACK)) &&  in ipf_state_tcpinwindow()
3964 	u_char tcpflags;  in ipf_tcp_age()  local
3971 	tcpflags = tcp->th_flags;  in ipf_tcp_age()
3976 	if (tcpflags & TH_RST) {  in ipf_tcp_age()
3977 		if (!(tcpflags & TH_PUSH) && !dlen)  in ipf_tcp_age()
3990 			if ((tcpflags & TH_OPENING) == TH_OPENING) {  in ipf_tcp_age()
3997 			} else if ((tcpflags & TH_OPENING) == TH_SYN) {  in ipf_tcp_age()
4010 			    ((tcpflags & TH_ACKMASK) == TH_ACK)) {  in ipf_tcp_age()
4039 			if ((tcpflags & ~(TH_ECN|TH_CWR)) == TH_SYN) {  in ipf_tcp_age()
4051 			} else if ((tcpflags & (TH_SYN|TH_FIN|TH_ACK)) ==  in ipf_tcp_age()
4060 			} else if (tcpflags & TH_FIN) {  in ipf_tcp_age()
4068 			} else if ((tcpflags & TH_OPENING) == TH_OPENING) {  in ipf_tcp_age()
4080 			if ((tcpflags & (TH_SYN|TH_FIN|TH_ACK)) == TH_ACK) {  in ipf_tcp_age()
4089 			} else if ((tcpflags & ~(TH_ECN|TH_CWR)) ==  in ipf_tcp_age()
4096 			} else if (tcpflags & TH_FIN) {  in ipf_tcp_age()
4109 			if (tcpflags & TH_FIN) {  in ipf_tcp_age()
4112 			} else if ((tcpflags & TH_ACKMASK) == TH_ACK) {  in ipf_tcp_age()
4141 			if (tcpflags & TH_FIN) {  in ipf_tcp_age()
4152 			} else if (tcpflags & TH_ACK) {  in ipf_tcp_age()
4178 			if (tcpflags & TH_FIN) {  in ipf_tcp_age()
4196 			if ((tcpflags & TH_ACK) &&  in ipf_tcp_age()
4223 			if ((tcpflags & (TH_FIN|TH_ACK)) == TH_ACK) {  in ipf_tcp_age()
4230 			if (tcpflags & TH_ACK) {  in ipf_tcp_age()