Initial L2 LISP support

This introduces support for layer 2 overlays with LISP. Similarly to L3,
all tenant packets to be encapsulated are captured by an interface, but
the mapping (layer binding) instead of being between an L3 VRF and a
LISP VNI, it is between and an L2 bridge domain and a VNI. At a high
level, this results in two important properties:
1) the source and destinations of all packets flooded in the
   bridge-domain are mapped via the LISP control plane and the replies are
   converted into data-plane tunnels tracked via a LISP specific
   source/dest L2 FIB
2) All packets reaching the interface and matching a source/dest L2 LISP
   FIB entry are L3 (IP4/6) encapsulated.

This is solely a unicast feature, therefore at this time ARPs are not
handled in any special way.

Change-Id: I0b7badcd7c6d5166db07d4acd2cc4ae7fba3e18e
Signed-off-by: Florin Coras <fcoras@cisco.com>

1 files changed, 7 insertions, 4 deletions

diff --git a/vpp-api-test/vat/api_format.c b/vpp-api-test/vat/api_format.c
index 04f87999..90c69a2c 100644
--- a/vpp-api-test/vat/api_format.c
+++ b/vpp-api-test/vat/api_format.c
@@ -11198,8 +11198,8 @@ api_lisp_eid_table_add_del_map (vat_main_t * vam)
   f64 timeout = ~0;
   unformat_input_t * input = vam->input;
   vl_api_lisp_eid_table_add_del_map_t *mp;
-  u8 is_add = 1, vni_set = 0, vrf_set = 0;
-  u32 vni, vrf;
+  u8 is_add = 1, vni_set = 0, vrf_set = 0, bd_index_set = 0;
+  u32 vni, vrf, bd_index;
 
   /* Parse args required to build the message */
   while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
@@ -11208,13 +11208,15 @@ api_lisp_eid_table_add_del_map (vat_main_t * vam)
         is_add = 0;
       else if (unformat(input, "vrf %d", &vrf))
         vrf_set = 1;
+      else if (unformat(input, "bd_index %d", &bd_index))
+        bd_index_set = 1;
       else if (unformat(input, "vni %d", &vni))
         vni_set = 1;
       else
         break;
     }
 
-  if (!vni_set || !vrf_set)
+  if (!vni_set || (!vrf_set && !bd_index_set))
     {
       errmsg ("missing arguments!");
       return -99;
@@ -11224,7 +11226,8 @@ api_lisp_eid_table_add_del_map (vat_main_t * vam)
 
   mp->is_add = is_add;
   mp->vni = htonl (vni);
-  mp->vrf = htonl (vrf);
+  mp->dp_table = htonl (vrf);
+  mp->is_l2 = bd_index_set;
 
   /* send */
   S;