--- zzzz-none-000/linux-4.4.60/net/bridge/br_sysfs_if.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/net/bridge/br_sysfs_if.c	2021-02-04 17:41:59.000000000 +0000
@@ -173,6 +173,22 @@
 BRPORT_ATTR_FLAG(proxyarp, BR_PROXYARP);
 BRPORT_ATTR_FLAG(proxyarp_wifi, BR_PROXYARP_WIFI);
 
+static ssize_t show_isolate_mode(struct net_bridge_port *p, char *buf)
+{
+	int isolate_mode = (p->flags & BR_ISOLATE_MODE) ? 1 : 0;
+	return sprintf(buf, "%d\n", isolate_mode);
+}
+static ssize_t store_isolate_mode(struct net_bridge_port *p, unsigned long v)
+{
+	if (v)
+		p->flags |= BR_ISOLATE_MODE;
+	else
+		p->flags &= ~BR_ISOLATE_MODE;
+	return 0;
+}
+static BRPORT_ATTR(isolate_mode, S_IRUGO | S_IWUSR,
+		   show_isolate_mode, store_isolate_mode);
+
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
 {
@@ -188,6 +204,97 @@
 		   store_multicast_router);
 
 BRPORT_ATTR_FLAG(multicast_fast_leave, BR_MULTICAST_FAST_LEAVE);
+
+#ifdef CONFIG_AVM_BRIDGE_MULTICAST_TO_UNICAST
+
+BRPORT_ATTR_FLAG(avm_multicast_to_unicast, BR_MULTICAST_TO_UNICAST);
+
+static ssize_t show_multicast_to_unicast_threshold(struct net_bridge_port *p, char *buf)
+{
+	return sprintf(buf, "%d\n", p->multicast_to_unicast_threshold);
+}
+
+static int store_multicast_to_unicast_threshold(struct net_bridge_port *p, unsigned long v)
+{
+	p->multicast_to_unicast_threshold = v;
+	return 0;
+}
+static BRPORT_ATTR(avm_multicast_to_unicast_threshold, S_IRUGO | S_IWUSR,
+		   show_multicast_to_unicast_threshold,
+		   store_multicast_to_unicast_threshold);
+
+static ssize_t show_recipients(struct net_bridge_port *p, char *buf)
+{
+	int i;
+	struct net_bridge *br = p->br;
+	struct net_bridge_mdb_htable *mdb;
+	char line[128];
+
+	if (!netif_running(br->dev) || (p->state == BR_STATE_DISABLED))
+		return -EBUSY;
+
+	buf[0] = '\0';
+
+	spin_lock_irq(&br->multicast_lock);
+	rcu_read_lock();
+
+	mdb = rcu_dereference(br->mdb);
+	if (!mdb)
+		goto out;
+
+	for (i = 0; i < mdb->max; i++) {
+		struct net_bridge_mdb_entry *mp;
+		struct net_bridge_port_group *pg;
+		struct net_bridge_group_recipient *recp;
+		struct net_bridge_fdb_entry *fdb;
+
+		hlist_for_each_entry_rcu(mp, &mdb->mhash[i], hlist[mdb->ver]) {
+
+			for (pg = mlock_dereference(mp->ports, br);
+			     pg != NULL;
+			     pg = mlock_dereference(pg->next, br)) {
+				if (pg->port != p)
+					continue;
+
+				list_for_each_entry_rcu(recp, &pg->recipients, list) {
+					fdb = rcu_dereference(recp->recipient);
+
+					switch (mp->addr.proto) {
+						case htons(ETH_P_IP):
+							snprintf(line, sizeof(line),
+							         "%pI4: %pM\n", &mp->addr.u.ip4, &fdb->addr.addr);
+							break;
+#if IS_ENABLED(CONFIG_IPV6)
+						case htons(ETH_P_IPV6):
+							snprintf(line, sizeof(line),
+							         "%pI6: %pM\n", &mp->addr.u.ip6, &fdb->addr.addr);
+							break;
+#endif
+						default:
+							/* unreachable */
+							continue;
+					}
+					if (strlcat(buf, line, PAGE_SIZE) >= PAGE_SIZE)
+						goto out;
+				}
+			}
+		}
+	}
+
+out:
+	rcu_read_unlock();
+	spin_unlock_irq(&br->multicast_lock);
+
+	return strlen(buf);
+}
+
+static BRPORT_ATTR(avm_multicast_recipients, S_IRUGO, show_recipients, NULL);
+
+#endif
+#endif
+
+#ifdef CONFIG_AVM_BRIDGE_ISOLATION
+static BRPORT_ATTR(avm_isolated, S_IRUGO | S_IWUSR, br_isol_show, br_isol_store);
 #endif
 
 static const struct brport_attribute *brport_attrs[] = {
@@ -214,9 +321,18 @@
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	&brport_attr_multicast_router,
 	&brport_attr_multicast_fast_leave,
+#ifdef CONFIG_AVM_BRIDGE_MULTICAST_TO_UNICAST
+	&brport_attr_avm_multicast_to_unicast,
+	&brport_attr_avm_multicast_to_unicast_threshold,
+	&brport_attr_avm_multicast_recipients,
+#endif
 #endif
 	&brport_attr_proxyarp,
 	&brport_attr_proxyarp_wifi,
+	&brport_attr_isolate_mode,
+#ifdef CONFIG_AVM_BRIDGE_ISOLATION
+	&brport_attr_avm_isolated,
+#endif
 	NULL
 };