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authorNeale Ranns <nranns@cisco.com>2019-03-04 14:08:11 -0800
committerNeale Ranns <nranns@cisco.com>2019-03-06 10:31:38 +0000
commit8da9fc659badc016e409f772673002f021c0cc4a (patch)
tree0223180b7344b652ab8c45bb38f47f335bbed7c5 /src/plugins/gbp/gbp_endpoint.c
parentdc8d93b02949f508d5eed312a51aa91102224b39 (diff)
GBP: learn from ARP and L2 packets
Change-Id: I8af7bca566ec7c9bd2b72529d49e04c6e649b44a Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/plugins/gbp/gbp_endpoint.c')
-rw-r--r--src/plugins/gbp/gbp_endpoint.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/src/plugins/gbp/gbp_endpoint.c b/src/plugins/gbp/gbp_endpoint.c
index 9cae2ab9421..4bd726fec31 100644
--- a/src/plugins/gbp/gbp_endpoint.c
+++ b/src/plugins/gbp/gbp_endpoint.c
@@ -32,6 +32,7 @@
#include <vnet/fib/fib_table.h>
#include <vnet/ip/ip_neighbor.h>
#include <vnet/fib/fib_walk.h>
+#include <vnet/vxlan-gbp/vxlan_gbp.h>
static const char *gbp_endpoint_attr_names[] = GBP_ENDPOINT_ATTR_NAMES;
@@ -473,6 +474,7 @@ gbp_endpoint_n_learned (int n)
static void
gbp_endpoint_loc_update (gbp_endpoint_loc_t * gel,
+ const gbp_bridge_domain_t * gb,
u32 sw_if_index,
index_t ggi,
gbp_endpoint_flags_t flags,
@@ -508,6 +510,24 @@ gbp_endpoint_loc_update (gbp_endpoint_loc_t * gel,
if (NULL != tun_dst)
ip46_address_copy (&gel->tun.gel_dst, tun_dst);
+ if (ip46_address_is_multicast (&gel->tun.gel_src))
+ {
+ /*
+ * we learnt the EP from the multicast tunnel.
+ * Create a unicast TEP from the packet's source
+ * and the fixed address of the BD's parent tunnel
+ */
+ const gbp_vxlan_tunnel_t *gt;
+
+ gt = gbp_vxlan_tunnel_get (gb->gb_vni);
+
+ if (NULL != gt)
+ {
+ ip46_address_copy (&gel->tun.gel_src, &gt->gt_src);
+ sw_if_index = gt->gt_sw_if_index;
+ }
+ }
+
/*
* the input interface may be the parent GBP-vxlan interface,
* create a child vlxan-gbp tunnel and use that as the endpoint's
@@ -862,7 +882,8 @@ gbp_endpoint_update_and_lock (gbp_endpoint_src_t src,
gei = gbp_endpoint_index (ge);
gel = gbp_endpoint_loc_find_or_add (ge, src);
- gbp_endpoint_loc_update (gel, sw_if_index, ggi, flags, tun_src, tun_dst);
+ gbp_endpoint_loc_update (gel, gbd, sw_if_index, ggi, flags, tun_src,
+ tun_dst);
if (src <= best)
{