TunnelEncaps: Add tunnel type names

1 files changed, 40 insertions, 1 deletions

diff --git a/lib/tunnel_encaps.c b/lib/tunnel_encaps.c
index 421c0c83..aa3e6b29 100644
--- a/lib/tunnel_encaps.c
+++ b/lib/tunnel_encaps.c
@@ -176,6 +176,43 @@ int decode_tunnel_encap(const eattr *e, struct tunnel_encap *encap, struct pool
   return 0;
 }
 
+struct {
+  int type;
+  const char *name;
+} tunnel_types[] = {
+  {0, "Reserved"},
+  {1, "L2TPv3 over IP"},
+  {2, "GRE"},
+  {3, "Transmit tunnel endpoint"},
+  {4, "IPsec in Tunnel-mode"},
+  {5, "IP in IP tunnel with IPsec Transport Mode"},
+  {6, "MPLS-in-IP tunnel with IPsec Transport Mode"},
+  {7, "IP in IP"},
+  {8, "VXLAN"},
+  {9, "NVGRE"},
+  {10, "MPLS"},
+  {11, "MPLS in GRE"},
+  {12, "VXLAN GPE"},
+  {13, "MPLS in UDP"},
+  {14, "IPv6 Tunnel"},
+  {15, "SR TE Policy Type"},
+  {16, "Bare"},
+  {17, "SR Tunnel"},
+};
+
+const uint num_tunnel_types = sizeof(tunnel_types)/sizeof(tunnel_types[0]);
+
+static const char *
+lookup_name(int type)
+{
+  for (uint i = 0; i < num_tunnel_types; i++) {
+    if (tunnel_types[i].type == type)
+      return tunnel_types[i].name;
+  }
+
+  return "Unassigned";
+}
+
 int format_tunnel_encap(const eattr *a, byte *buf, uint size)
 {
   byte *pos = buf;
@@ -192,7 +229,9 @@ int format_tunnel_encap(const eattr *a, byte *buf, uint size)
     return pos - buf;
   }
 
-  l = bsnprintf(pos, size, "type: %d", encap.type);
+  const char *name = lookup_name(encap.type);
+
+  l = bsnprintf(pos, size, "type: %s(%d)", name, encap.type);
   if (l < 0)
     return pos - buf;
   ADVANCE(pos, size, l);