update config: "firewall: Allow IGMP and MLD input on WAN" (r45613)

Adopt the according modifications to the default firewall settings of
the WAN interface from OpenWRT, revision 45613.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>

package/gluon-core/files/lib/gluon/upgrade/110-network

@@ -56,5 +56,31 @@ uci:save('network')
 uci:commit('network')
 
 
+uci:section('firewall', 'rule', 'wan_igmp',
+	    {
+	       name = 'Allow-IGMP',
+	       src = 'wan',
+	       proto = 'igmp',
+	       family = 'ipv4',
+	       target = 'ACCEPT',
+	    }
+)
+
+uci:section('firewall', 'rule', 'wan_mld',
+	    {
+	       name = 'Allow-MLD',
+	       src = 'wan',
+	       proto = 'icmp',
+	       src_ip = 'fe80::/10',
+	       icmp_type = { '130/0', '131/0', '132/0', '143/0', },
+	       family = 'ipv6',
+	       target = 'ACCEPT',
+	    }
+)
+
+uci:save('firewall')
+uci:commit('firewall')
+
+
 sysctl.set('net.ipv6.conf.all.accept_ra', 0)
 sysctl.set('net.ipv6.conf.default.accept_ra', 0)