VXLAN over IPv6.

Refactors the VXLAN node to work with both IPv4 and IPv6 transports.

There is a discussion thread for this change at
https://lists.fd.io/pipermail/vpp-dev/2016-March/000279.html

Note that this changes the binary configuration API to support both
address families; each address uses the same memory for either address
type and a flag to indicate which is in use. This also includes changes
to the Java API to support both address families.

The CLI and VAT syntax remains unchanged; the code detects whether an
IPv4 or an IPv6 address was given.

Configuration examples:

IPv4 CLI: create vxlan tunnel src 192.168.1.1 dst 192.168.1.2
                vni 10 encap-vrf-id 0 decap-next l2
IPv6 CLI: create vxlan tunnel src 2620:124:9000::1 dst 2620:124:9000::2
                vni 16 encap-vrf-id 0 decap-next l2

IPv4 VAT: vxlan_add_del_tunnel src 192.168.1.1 dst 192.168.1.2
                vni 10 encap-vrf-id 0 decap-next l2
IPv6 VAT: vxlan_add_del_tunnel src 2620:124:9000::1 dst 2620:124:9000::2
                vni 16 encap-vrf-id 0 decap-next l2

TODO: The encap path is not as optimal as it could be.

Change-Id: I87be8bf0501e0c9cd7e401be4542bb599f1b6e47
Signed-off-by: Chris Luke <chrisy@flirble.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/vpp-api/java/japi/org/openvpp/vppjapi/vppVxlanTunnelDetails.java b/vpp-api/java/japi/org/openvpp/vppjapi/vppVxlanTunnelDetails.java
index dd81e98cf27..fe3d0bca067 100644
--- a/vpp-api/java/japi/org/openvpp/vppjapi/vppVxlanTunnelDetails.java
+++ b/vpp-api/java/japi/org/openvpp/vppjapi/vppVxlanTunnelDetails.java
@@ -16,18 +16,20 @@
 package org.openvpp.vppjapi;
 
 public final class vppVxlanTunnelDetails {
-    public final int srcAddress;
-    public final int dstAddress;
+    public final byte[] srcAddress;
+    public final byte[] dstAddress;
     public final int encapVrfId;
     public final int vni;
     public final int decapNextIndex;
+    public final boolean isIpv6;
 
-    public vppVxlanTunnelDetails(int srcAddress, int dstAddress,
-            int encapVrfId, int vni, int decapNextIndex) {
+    public vppVxlanTunnelDetails(byte[] srcAddress, byte[] dstAddress,
+            int encapVrfId, int vni, int decapNextIndex, boolean isIpv6) {
         this.srcAddress = srcAddress;
         this.dstAddress = dstAddress;
         this.encapVrfId = encapVrfId;
         this.vni = vni;
         this.decapNextIndex = decapNextIndex;
+        this.isIpv6 = isIpv6;
     }
 }