Track ip version of tunnel in chassis_tunnel struct

This will be used in a later patch to calculate tunneling overhead for
effective path MTU.

Acked-by: Dumitru Ceara <dceara@redhat.com>
Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: Mark Michelson <mmichels@redhat.com>

controller/local_data.c

@@ -22,6 +22,7 @@
 #include "lib/util.h"
 #include "lib/vswitch-idl.h"
 #include "openvswitch/vlog.h"
+#include "socket-util.h"
 
 /* OVN includes. */
 #include "encaps.h"
@@ -447,6 +448,7 @@ local_nonvif_data_run(const struct ovsrec_bridge *br_int,
                 tun->chassis_id = xstrdup(tunnel_id);
                 tun->ofport = u16_to_ofp(ofport);
                 tun->type = tunnel_type;
+                tun->is_ipv6 = ip ? addr_is_ipv6(ip) : false;
 
                 free(hash_id);
                 free(ip);

controller/local_data.h

@@ -133,6 +133,7 @@ struct chassis_tunnel {
     char *chassis_id;
     ofp_port_t ofport;
     enum chassis_tunnel_type type;
+    bool is_ipv6;
 };
 
 void local_nonvif_data_run(const struct ovsrec_bridge *br_int,