Add back support for null0 interface blackhole routes.
diff --git a/zebra/rib.h b/zebra/rib.h
index d416c15..5b0dcfe 100644
--- a/zebra/rib.h
+++ b/zebra/rib.h
@@ -76,6 +76,7 @@
u_char type;
#define STATIC_IPV4_GATEWAY 1
#define STATIC_IPV4_IFNAME 2
+#define STATIC_IPV4_BLACKHOLE 3
/* Nexthop value. */
union
@@ -137,6 +138,7 @@
#define NEXTHOP_TYPE_IPV6 6 /* IPv6 nexthop. */
#define NEXTHOP_TYPE_IPV6_IFINDEX 7 /* IPv6 nexthop with ifindex. */
#define NEXTHOP_TYPE_IPV6_IFNAME 8 /* IPv6 nexthop with ifname. */
+#define NEXTHOP_TYPE_BLACKHOLE 9 /* Null0 nexthop. */
u_char flags;
#define NEXTHOP_FLAG_ACTIVE (1 << 0) /* This nexthop is alive. */
@@ -194,6 +196,7 @@
struct nexthop *nexthop_ifindex_add (struct rib *, unsigned int);
struct nexthop *nexthop_ifname_add (struct rib *, char *);
+struct nexthop *nexthop_blackhole_add (struct rib *);
struct nexthop *nexthop_ipv4_add (struct rib *, struct in_addr *);
#ifdef HAVE_IPV6
struct nexthop *nexthop_ipv6_add (struct rib *, struct in6_addr *);