cnat: Destination based NAT

[vpp.git] / src / vnet / ip / ip_types.c

diff --git a/src/vnet/ip/ip_types.c b/src/vnet/ip/ip_types.c
index 5041c12..3d489e4 100644 (file)
--- a/src/vnet/ip/ip_types.c
+++ b/src/vnet/ip/ip_types.c
@@ -261,6 +261,30 @@ ip_address_from_46 (const ip46_address_t * nh,
   ip_addr_version (ip) = ip_address_family_from_fib_proto (fproto);
 }
 
+/**
+ * convert from a IP address to a FIB prefix
+ */
+void
+ip_address_to_fib_prefix (const ip_address_t * addr, fib_prefix_t * prefix)
+{
+  if (addr->version == AF_IP4)
+    {
+      prefix->fp_len = 32;
+      prefix->fp_proto = FIB_PROTOCOL_IP4;
+      clib_memset (&prefix->fp_addr.pad, 0, sizeof (prefix->fp_addr.pad));
+      memcpy (&prefix->fp_addr.ip4, &addr->ip.ip4,
+             sizeof (prefix->fp_addr.ip4));
+    }
+  else
+    {
+      prefix->fp_len = 128;
+      prefix->fp_proto = FIB_PROTOCOL_IP6;
+      memcpy (&prefix->fp_addr.ip6, &addr->ip.ip6,
+             sizeof (prefix->fp_addr.ip6));
+    }
+  prefix->___fp___pad = 0;
+}
+
 static void
 ip_prefix_normalize_ip4 (ip4_address_t * ip4, u8 preflen)
 {
@@ -364,6 +388,17 @@ ip_prefix_cmp (ip_prefix_t * p1, ip_prefix_t * p2)
   return cmp;
 }
 
+/**
+ * convert from a LISP to a FIB prefix
+ */
+void
+ip_prefix_to_fib_prefix (const ip_prefix_t * ip_prefix,
+                        fib_prefix_t * fib_prefix)
+{
+  ip_address_to_fib_prefix (&ip_prefix->addr, fib_prefix);
+  fib_prefix->fp_len = ip_prefix->len;
+}
+
 static bool
 ip4_prefix_validate (const ip_prefix_t * ip)
 {