bsd/net/dlil.c

286 static unsigned int dlif_phash_size;	/* size of ifnet proto hash table */
287 static struct zone *dlif_phash_zone;	/* zone for ifnet proto hash table */
622 	struct if_proto *proto = NULL;
628 		proto = SLIST_FIRST(&ifp->if_proto_hash[i]);
630 	while (proto != NULL && proto->protocol_family != protocol_family)
631 		proto = SLIST_NEXT(proto, next_hash);
633 	if (proto != NULL)
634 		if_proto_ref(proto);
636 	return (proto);
640 if_proto_ref(struct if_proto *proto)
642 	atomic_add_32(&proto->refcount, 1);
648 if_proto_free(struct if_proto *proto)
651 	struct ifnet *ifp = proto->ifp;
652 	u_int32_t proto_family = proto->protocol_family;
655 	oldval = atomic_add_32_ov(&proto->refcount, -1);
660 	VERIFY(proto->detached);
662 	if (proto->proto_kpi == kProtoKPI_v1) {
663 		if (proto->kpi.v1.detached)
664 			proto->kpi.v1.detached(ifp, proto->protocol_family);
666 	if (proto->proto_kpi == kProtoKPI_v2) {
667 		if (proto->kpi.v2.detached)
668 			proto->kpi.v2.detached(ifp, proto->protocol_family);
690 	zfree(dlif_proto_zone, proto);
775 		struct if_proto *proto;
776 		SLIST_FOREACH(proto, &ifp->if_proto_hash[i], next_hash) {
2924 			/* callee holds a proto refcnt upon success */
3027 			struct if_proto *proto;
3029 			SLIST_FOREACH(proto, &ifp->if_proto_hash[i],
3032 				    (proto->proto_kpi == kProtoKPI_v1 ?
3033 				    proto->kpi.v1.event :
3034 				    proto->kpi.v2.event);
3037 					if_proto_ref(proto);
3040 					eventp(ifp, proto->protocol_family,
3044 					if_proto_free(proto);
3228 	struct if_proto	*proto = NULL;
3256 		/* callee holds a proto refcnt upon success */
3257 		proto = find_attached_proto(ifp, proto_family);
3258 		if (proto == NULL) {
3275 		proto_media_preout preoutp = (proto->proto_kpi == kProtoKPI_v1 ?
3276 		    proto->kpi.v1.pre_output : proto->kpi.v2.pre_output);
3477 	if (proto != NULL)
3478 		if_proto_free(proto);
3541 		struct if_proto	*proto;
3543 		/* callee holds a proto refcnt upon success */
3545 		proto = find_attached_proto(ifp, proto_fam);
3547 		if (proto != NULL) {
3549 			    (proto->proto_kpi == kProtoKPI_v1 ?
3550 			    proto->kpi.v1.ioctl : proto->kpi.v2.ioctl);
3555 			if_proto_free(proto);
3618 	struct if_proto *proto;
3627 	/* Call the protocol first; callee holds a proto refcnt upon success */
3629 	proto = find_attached_proto(ifp, proto_addr->sa_family);
3631 	if (proto != NULL) {
3632 		resolvep = (proto->proto_kpi == kProtoKPI_v1 ?
3633 		    proto->kpi.v1.resolve_multi : proto->kpi.v2.resolve_multi);
3637 		if_proto_free(proto);
3658 	struct if_proto *proto;
3661 	/* callee holds a proto refcnt upon success */
3663 	proto = find_attached_proto(ifp, target_proto->sa_family);
3665 	if (proto == NULL) {
3669 		arpp = (proto->proto_kpi == kProtoKPI_v1 ?
3670 		    proto->kpi.v1.send_arp : proto->kpi.v2.send_arp);
3676 		if_proto_free(proto);
3949 dlil_attach_protocol_internal(struct if_proto *proto,
3953 	struct ifnet *ifp = proto->ifp;
3955 	u_int32_t hash_value = proto_hash_value(proto->protocol_family);
3959 	/* callee holds a proto refcnt upon success */
3961 	_proto = find_attached_proto(ifp, proto->protocol_family);
3972 	retval = ifp->if_add_proto(ifp, proto->protocol_family, demux_list,
3986 		SLIST_INSERT_AFTER(prev_proto, proto, next_hash);
3989 		    proto, next_hash);
3991 	/* hold a proto refcnt for attach */
3992 	if_proto_ref(proto);
3998 	ev_pr_data.proto_family = proto->protocol_family;
4123 	struct if_proto *proto = NULL;
4132 	/* callee holds a proto refcnt upon success */
4133 	proto = find_attached_proto(ifp, proto_family);
4134 	if (proto == NULL) {
4142 		ifp->if_del_proto(ifp, proto->protocol_family);
4145 	    proto, if_proto, next_hash);
4147 	if (proto->proto_kpi == kProtoKPI_v1) {
4148 		proto->kpi.v1.input = ifproto_media_input_v1;
4149 		proto->kpi.v1.pre_output= ifproto_media_preout;
4150 		proto->kpi.v1.event = ifproto_media_event;
4151 		proto->kpi.v1.ioctl = ifproto_media_ioctl;
4152 		proto->kpi.v1.resolve_multi = ifproto_media_resolve_multi;
4153 		proto->kpi.v1.send_arp = ifproto_media_send_arp;
4155 		proto->kpi.v2.input = ifproto_media_input_v2;
4156 		proto->kpi.v2.pre_output = ifproto_media_preout;
4157 		proto->kpi.v2.event = ifproto_media_event;
4158 		proto->kpi.v2.ioctl = ifproto_media_ioctl;
4159 		proto->kpi.v2.resolve_multi = ifproto_media_resolve_multi;
4160 		proto->kpi.v2.send_arp = ifproto_media_send_arp;
4162 	proto->detached = 1;
4167 		    ifp->if_unit, (proto->proto_kpi == kProtoKPI_v1) ?
4171 	/* release proto refcnt held during protocol attach */
4172 	if_proto_free(proto);
4175 	 * Release proto refcnt held during lookup; the rest of
4176 	 * protocol detach steps will happen when the last proto
4179 	if_proto_free(proto);
4981 		struct if_proto *proto;
4983 		proto = SLIST_FIRST(&ifp->if_proto_hash[i]);
4984 		while (proto != NULL) {
4985 			protocol_family_t family = proto->protocol_family;
4989 			proto = SLIST_FIRST(&ifp->if_proto_hash[i]);