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authorNeale Ranns <nranns@cisco.com>2018-07-11 10:31:26 -0700
committerDamjan Marion <dmarion@me.com>2018-07-20 13:21:03 +0000
commit1855b8e48d95289cc9f0a6e339f2148d64ac705c (patch)
tree71e888d9aabc16a388c07a5f3c3089ade0fdadab /src/vnet/interface.c
parent631de0dffebf2633e32b55c5c9b4663867a50371 (diff)
IP directed broadcast
with ip direct broadcast enable a packet to the interface's subnet broadcast address with be sent L2 broadcast on the interface. dissabled, it will be dropped. it is disabled by default, which preserves current behaviour Change-Id: If154cb92e64834e97a541b32624354348a0eafb3 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/interface.c')
-rw-r--r--src/vnet/interface.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index a9346a2b072..ca4dc493aac 100644
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -705,6 +705,22 @@ vnet_sw_interface_set_protocol_mtu (vnet_main_t * vnm, u32 sw_if_index,
call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
}
+void
+vnet_sw_interface_ip_directed_broadcast (vnet_main_t * vnm,
+ u32 sw_if_index, u8 enable)
+{
+ vnet_sw_interface_t *si;
+
+ si = vnet_get_sw_interface (vnm, sw_if_index);
+
+ if (enable)
+ si->flags |= VNET_SW_INTERFACE_FLAG_DIRECTED_BCAST;
+ else
+ si->flags &= ~VNET_SW_INTERFACE_FLAG_DIRECTED_BCAST;
+
+ ip4_directed_broadcast (sw_if_index, enable);
+}
+
/*
* Reflect a change in hardware MTU on protocol MTUs
*/
@@ -1609,6 +1625,7 @@ default_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
adj_glean_update_rewrite (ai);
break;
case IP_LOOKUP_NEXT_ARP:
+ case IP_LOOKUP_NEXT_BCAST:
/*
* default rewirte in neighbour adj
*/