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-rw-r--r--include/net/ipv6.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 4a3cd2cd2f5..96e50e0ce3c 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -89,6 +89,18 @@
#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
/*
+ * Addr flags
+ */
+#ifdef __KERNEL__
+#define IPV6_ADDR_MC_FLAG_TRANSIENT(a) \
+ ((a)->s6_addr[1] & 0x10)
+#define IPV6_ADDR_MC_FLAG_PREFIX(a) \
+ ((a)->s6_addr[1] & 0x20)
+#define IPV6_ADDR_MC_FLAG_RENDEZVOUS(a) \
+ ((a)->s6_addr[1] & 0x40)
+#endif
+
+/*
* fragmentation header
*/