507 	d->bd_bif = bp;  in bpf_attachd()
579 	ifp = d->bd_bif->bif_ifp;  in bpf_detachd()
580 	bp = d->bd_bif;  in bpf_detachd()
618 	d->bd_bif = NULL;  in bpf_detachd()
934 	if (d->bd_bif) {  in bpfclose()
1084 		if (d->bd_bif == NULL) {  in bpfread()
1347 	if (d->bd_bif == 0) {  in bpfwrite()
1353 	ifp = d->bd_bif->bif_ifp;  in bpfwrite()
1371 	bif_dlt = (int)d->bd_bif->bif_dlt;  in bpfwrite()
1397 	if (d->bd_bif == NULL) {  in bpfwrite()
1419 		if (d->bd_bif->bif_send) {  in bpfwrite()
1420 			error = d->bd_bif->bif_send(ifp, d->bd_bif->bif_dlt, m);  in bpfwrite()
1680 		if (d->bd_bif == 0) {  in bpfioctl()
1683 			ifp = d->bd_bif->bif_ifp;  in bpfioctl()
1712 		if (d->bd_bif != 0 || (d->bd_flags & BPF_DETACHING)) {  in bpfioctl()
1782 		if (d->bd_bif == 0) {  in bpfioctl()
1791 			error = ifnet_set_promiscuous(d->bd_bif->bif_ifp, 1);  in bpfioctl()
1803 		if (d->bd_bif == 0) {  in bpfioctl()
1806 			bcopy(&d->bd_bif->bif_dlt, addr, sizeof(u_int));  in bpfioctl()
1814 		if (d->bd_bif == NULL) {  in bpfioctl()
1825 		if (d->bd_bif == NULL) {  in bpfioctl()
1844 		if (d->bd_bif == 0) {  in bpfioctl()
1847 			struct ifnet *const ifp = d->bd_bif->bif_ifp;  in bpfioctl()
2274 		if (bp != d->bd_bif) {  in bpf_setif()
2275 			if (d->bd_bif != NULL) {  in bpf_setif()
2313 	ifp = d->bd_bif->bif_ifp;  in bpf_getdltlist()
2356 	if (d->bd_bif->bif_dlt == dlt) {  in bpf_setdlt()
2368 	ifp = d->bd_bif->bif_ifp;  in bpf_setdlt()
2458 	if (d->bd_bif == NULL) {  in bpfselect()
2598 	    d->bd_bif == NULL) {  in bpfkqfilter()
3386 	hdrlen = (d->bd_flags & BPF_EXTENDED_HDR) ? d->bd_bif->bif_exthdrlen :  in catchpacket()
3387 	    d->bd_bif->bif_hdrlen;  in catchpacket()