Import 2.1.89

[davej-history.git] / include / net / addrconf.h

diff --git a/include/net/addrconf.hb/include/net/addrconf.h
index b0da120..44fb44d 100644 (file)
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -148,6+148,10 @@ extern __inline__ void ipv6_addr_all_routers(struct in6_addr *addr)
                      __constant_htonl(0x2));
 }
 
+extern __inline__ int ipv6_addr_is_multicast(struct in6_addr *addr)
+{
+       return (addr->s6_addr32[0] & __constant_htonl(0xFF000000)) == __constant_htonl(0xFF000000);
+}
 
 #endif
 #endif