zebra: VNI and VTEP handling

Implement fundamental handling for VNIs and VTEPs:
- Handle EVPN enable/disable by client (advertise-all-vni)
- Create/update/delete VNIs based on VxLAN interface events and inform
client
- Handle VTEP add/delete from client and install into kernel
- New debug command for VxLAN/EVPN
- kernel interface (Linux/netlink only)

Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by:   Donald Sharp <sharpd@cumulusnetworks.com>

1 files changed, 89 insertions, 0 deletions

diff --git a/zebra/zebra_vxlan_null.c b/zebra/zebra_vxlan_null.c
new file mode 100644
index 0000000000..532ab64290
--- /dev/null
+++ b/zebra/zebra_vxlan_null.c
@@ -0,0 +1,89 @@
+/*
+ * Zebra VxLAN (EVPN)
+ * Copyright (C) 2016, 2017 Cumulus Networks, Inc.
+ *
+ * This file is part of FRR.
+ *
+ * FRR is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * FRR is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with FRR; see the file COPYING.  If not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include <zebra.h>
+
+#include "if.h"
+#include "zebra/debug.h"
+#include "zebra/zserv.h"
+#include "zebra/rib.h"
+#include "zebra/zebra_vrf.h"
+#include "zebra/zebra_l2.h"
+#include "zebra/zebra_vxlan.h"
+
+int
+zebra_vxlan_if_up (struct interface *ifp)
+{
+  return 0;
+}
+
+int
+zebra_vxlan_if_down (struct interface *ifp)
+{
+  return 0;
+}
+
+int
+zebra_vxlan_if_add (struct interface *ifp)
+{
+  return 0;
+}
+
+int
+zebra_vxlan_if_update (struct interface *ifp, u_int16_t chgflags)
+{
+  return 0;
+}
+
+int
+zebra_vxlan_if_del (struct interface *ifp)
+{
+  return 0;
+}
+
+int zebra_vxlan_remote_vtep_add (struct zserv *client, int sock,
+                                 u_short length, struct zebra_vrf *zvrf)
+{
+  return 0;
+}
+
+int zebra_vxlan_remote_vtep_del (struct zserv *client, int sock,
+                                 u_short length, struct zebra_vrf *zvrf)
+{
+  return 0;
+}
+
+int zebra_vxlan_advertise_all_vni (struct zserv *client, int sock,
+                                   u_short length, struct zebra_vrf *zvrf)
+{
+  return 0;
+}
+
+void
+zebra_vxlan_init_tables (struct zebra_vrf *zvrf)
+{
+}
+
+void
+zebra_vxlan_close_tables (struct zebra_vrf *zvrf)
+{
+}