269     struct bstp_config_unit *cu)  in bstp_decode_bpdu()  argument
273 	cu->cu_pv.pv_root_id =  in bstp_decode_bpdu()
282 	cu->cu_pv.pv_dbridge_id =  in bstp_decode_bpdu()
291 	cu->cu_pv.pv_cost = ntohl(cpdu->cbu_rootpathcost);  in bstp_decode_bpdu()
292 	cu->cu_message_age = ntohs(cpdu->cbu_messageage);  in bstp_decode_bpdu()
293 	cu->cu_max_age = ntohs(cpdu->cbu_maxage);  in bstp_decode_bpdu()
294 	cu->cu_hello_time = ntohs(cpdu->cbu_hellotime);  in bstp_decode_bpdu()
295 	cu->cu_forward_delay = ntohs(cpdu->cbu_forwarddelay);  in bstp_decode_bpdu()
296 	cu->cu_pv.pv_dport_id = ntohs(cpdu->cbu_portid);  in bstp_decode_bpdu()
297 	cu->cu_pv.pv_port_id = bp->bp_port_id;  in bstp_decode_bpdu()
298 	cu->cu_message_type = cpdu->cbu_bpdutype;  in bstp_decode_bpdu()
306 			cu->cu_role = BSTP_ROLE_DESIGNATED;  in bstp_decode_bpdu()
314 	cu->cu_topology_change_ack =  in bstp_decode_bpdu()
316 	cu->cu_proposal =  in bstp_decode_bpdu()
318 	cu->cu_agree =  in bstp_decode_bpdu()
320 	cu->cu_learning =  in bstp_decode_bpdu()
322 	cu->cu_forwarding =  in bstp_decode_bpdu()
324 	cu->cu_topology_change =  in bstp_decode_bpdu()
329 			cu->cu_role = BSTP_ROLE_ROOT;  in bstp_decode_bpdu()
332 			cu->cu_role = BSTP_ROLE_ALTERNATE;  in bstp_decode_bpdu()
335 			cu->cu_role = BSTP_ROLE_DESIGNATED;  in bstp_decode_bpdu()
536 	struct bstp_config_unit *cu = &bp->bp_msg_cu;  in bstp_received_stp()  local
550 		bstp_decode_bpdu(bp, &cpdu, cu);  in bstp_received_stp()
551 		bstp_received_bpdu(bs, bp, cu);  in bstp_received_stp()
561 	struct bstp_config_unit *cu = &bp->bp_msg_cu;  in bstp_received_rstp()  local
571 	bstp_decode_bpdu(bp, &cpdu, cu);  in bstp_received_rstp()
572 	bstp_received_bpdu(bs, bp, cu);  in bstp_received_rstp()
585     struct bstp_config_unit *cu)  in bstp_received_bpdu()  argument
599 	if (cu->cu_message_age >= cu->cu_max_age) {  in bstp_received_bpdu()
602 	if (cu->cu_max_age < BSTP_MIN_MAX_AGE ||  in bstp_received_bpdu()
603 	    cu->cu_max_age > BSTP_MAX_MAX_AGE) {  in bstp_received_bpdu()
606 	if (cu->cu_forward_delay < BSTP_MIN_FORWARD_DELAY ||  in bstp_received_bpdu()
607 	    cu->cu_forward_delay > BSTP_MAX_FORWARD_DELAY) {  in bstp_received_bpdu()
610 	if (cu->cu_hello_time < BSTP_MIN_HELLO_TIME ||  in bstp_received_bpdu()
611 	    cu->cu_hello_time > BSTP_MAX_HELLO_TIME) {  in bstp_received_bpdu()
615 	type = bstp_pdu_rcvtype(bp, cu);  in bstp_received_bpdu()
623 			if (cu->cu_proposal && cu->cu_forwarding == 0)  in bstp_received_bpdu()
625 			if (cu->cu_topology_change)  in bstp_received_bpdu()
627 			if (cu->cu_topology_change_ack)  in bstp_received_bpdu()
635 			bp->bp_port_pv = cu->cu_pv;  in bstp_received_bpdu()
636 			bp->bp_port_msg_age = cu->cu_message_age;  in bstp_received_bpdu()
637 			bp->bp_port_max_age = cu->cu_max_age;  in bstp_received_bpdu()
638 			bp->bp_port_fdelay = cu->cu_forward_delay;  in bstp_received_bpdu()
640 				(cu->cu_hello_time > BSTP_MIN_HELLO_TIME ?  in bstp_received_bpdu()
641 				 cu->cu_hello_time : BSTP_MIN_HELLO_TIME);  in bstp_received_bpdu()
651 			if (cu->cu_proposal && cu->cu_forwarding == 0)  in bstp_received_bpdu()
653 			if (cu->cu_topology_change)  in bstp_received_bpdu()
655 			if (cu->cu_topology_change_ack)  in bstp_received_bpdu()
663 			if (cu->cu_learning) {  in bstp_received_bpdu()
674 			if (cu->cu_agree && bp->bp_ptp_link) {  in bstp_received_bpdu()
680 			if (cu->cu_topology_change)  in bstp_received_bpdu()
682 			if (cu->cu_topology_change_ack)  in bstp_received_bpdu()
694 bstp_pdu_rcvtype(struct bstp_port *bp, struct bstp_config_unit *cu)  in bstp_pdu_rcvtype()  argument
701 	switch (cu->cu_role) {  in bstp_pdu_rcvtype()
703 		if (bstp_info_superior(&bp->bp_port_pv, &cu->cu_pv))  in bstp_pdu_rcvtype()
706 		else if (bstp_info_cmp(&bp->bp_port_pv, &cu->cu_pv) ==  in bstp_pdu_rcvtype()
708 			if (bp->bp_port_msg_age != cu->cu_message_age ||  in bstp_pdu_rcvtype()
709 			    bp->bp_port_max_age != cu->cu_max_age ||  in bstp_pdu_rcvtype()
710 			    bp->bp_port_fdelay != cu->cu_forward_delay ||  in bstp_pdu_rcvtype()
711 			    bp->bp_port_htime != cu->cu_hello_time)  in bstp_pdu_rcvtype()
726 		if (bstp_info_cmp(&bp->bp_port_pv, &cu->cu_pv) <= INFO_SAME)  in bstp_pdu_rcvtype()