1974 	tcpdata_t  *fdata, *tdata;  in ipf_state_tcp()  local
1981 	fdata = &is->is_tcp.ts_data[!source];  in ipf_state_tcp()
2007 		ret = ipf_state_tcpinwindow(fin, fdata, tdata, tcp,  in ipf_state_tcp()
2039 						   fdata) == -1)  in ipf_state_tcp()
2048 						   fdata) == -1)  in ipf_state_tcp()
2115 ipf_state_tcpinwindow(fr_info_t *fin, tcpdata_t  *fdata, tcpdata_t *tdata,  in ipf_state_tcpinwindow()  argument
2134 		win = ntohs(tcp->th_win) << fdata->td_winscale;  in ipf_state_tcpinwindow()
2156 	if (!(tcpflags & TH_SYN) && (fdata->td_winflags & TCP_WSCALE_FIRST)) {  in ipf_state_tcpinwindow()
2157 		fdata->td_winflags &= ~TCP_WSCALE_FIRST;  in ipf_state_tcpinwindow()
2158 		fdata->td_maxwin = win;  in ipf_state_tcpinwindow()
2163 	if ((fdata->td_end == 0) &&  in ipf_state_tcpinwindow()
2169 		fdata->td_end = end - 1;  in ipf_state_tcpinwindow()
2170 		fdata->td_maxwin = 1;  in ipf_state_tcpinwindow()
2171 		fdata->td_maxend = end + win;  in ipf_state_tcpinwindow()
2189 		if (seq != fdata->td_end) {  in ipf_state_tcpinwindow()
2190 			DT2(iss_tcp_struct, tcpdata_t *, fdata, int, seq);  in ipf_state_tcpinwindow()
2200 	if ((SEQ_GE(fdata->td_maxend, end)) &&  in ipf_state_tcpinwindow()
2201 	    (SEQ_GE(seq, fdata->td_end - maxwin)) &&  in ipf_state_tcpinwindow()
2205 	    ( ackskew <= (MAXACKWINDOW << fdata->td_winscale))) {  in ipf_state_tcpinwindow()
2211 	} else if ((seq == fdata->td_maxend) && (ackskew == 0) &&  in ipf_state_tcpinwindow()
2212 	    (fdata->td_winflags & TCP_SACK_PERMIT) &&  in ipf_state_tcpinwindow()
2214 		DT2(iss_sinsack, tcpdata_t *, fdata, int, seq);  in ipf_state_tcpinwindow()
2239 		if (!(fdata->td_winflags &  in ipf_state_tcpinwindow()
2245 			if ((seq == fdata->td_maxend) && (ackskew == 0))  in ipf_state_tcpinwindow()
2247 			else if (SEQ_GE(seq + maxwin, fdata->td_end - maxwin))  in ipf_state_tcpinwindow()
2273 		if (fdata->td_maxwin < win)  in ipf_state_tcpinwindow()
2274 			fdata->td_maxwin = win;  in ipf_state_tcpinwindow()
2275 		if (SEQ_GT(end, fdata->td_end))  in ipf_state_tcpinwindow()
2276 			fdata->td_end = end;  in ipf_state_tcpinwindow()