ip: IP address and prefix types (moved from LISP)

Type: refactor

Change-Id: I2c6b59013bfd21136a2955442c779685f951932b
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/lisp-cp/packets.c b/src/vnet/lisp-cp/packets.c
index 5cb2cfa..bbc3ad6 100644
--- a/src/vnet/lisp-cp/packets.c
+++ b/src/vnet/lisp-cp/packets.c
@@ -115,11 +115,11 @@
 {
   switch (version)
     {
-    case IP4:
+    case AF_IP4:
       return (udp_ip4_checksum (uh, udp_len,
 				((ip4_header_t *) ih)->src_address.as_u8,
 				((ip4_header_t *) ih)->dst_address.as_u8));
-    case IP6:
+    case AF_IP6:
       return (udp_ip6_checksum (ih, uh, udp_len));
     default:
       return ~0;
@@ -154,11 +154,11 @@
 
   switch (ip_addr_version (src))
     {
-    case IP4:
+    case AF_IP4:
       return vlib_buffer_push_ip4 (vm, b, &ip_addr_v4 (src),
 				   &ip_addr_v4 (dst), proto, csum_offload);
       break;
-    case IP6:
+    case AF_IP6:
       return vlib_buffer_push_ip6 (vm, b, &ip_addr_v6 (src),
 				   &ip_addr_v6 (dst), proto);
       break;