X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fpackets.h;h=848775419b8631bbef36951e496cc422f14111f8;hb=b37e6334fd80a6460aabc95f05eb8ab68e5a82ed;hp=f5f473ce7a6049785d724cb4342fd209bd5c180a;hpb=10500639d5756986a587116ca1b8b42764f5ace2;p=sliver-openvswitch.git

diff --git a/lib/packets.h b/lib/packets.h
index f5f473ce7..848775419 100644
--- a/lib/packets.h
+++ b/lib/packets.h
@@ -291,6 +291,11 @@ ip_is_cidr(ovs_be32 netmask)
     uint32_t x = ~ntohl(netmask);
     return !(x & (x + 1));
 }
+static inline bool
+ip_is_multicast(ovs_be32 ip)
+{
+    return (ip & htonl(0xf0000000)) == htonl(0xe0000000);
+}
 int ip_count_cidr_bits(ovs_be32 netmask);
 void ip_format_masked(ovs_be32 ip, ovs_be32 mask, struct ds *);