session: api to add new transport types

[vpp.git] / src / vnet / mpls / mpls_types.h

diff --git a/src/vnet/mpls/mpls_types.h b/src/vnet/mpls/mpls_types.h
index d7c629d..260cd8b 100644 (file)
--- a/src/vnet/mpls/mpls_types.h
+++ b/src/vnet/mpls/mpls_types.h
@@ -1,3 +1,17 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #ifndef __MPLS_TYPES_H__
 #define __MPLS_TYPES_H__
 
@@ -16,6 +30,7 @@
 #define MPLS_IETF_IMPLICIT_NULL_LABEL        0x00003
 #define MPLS_IETF_ELI_LABEL                  0x00007
 #define MPLS_IETF_GAL_LABEL                  0x0000D
+#define MPLS_IETF_ENTROPY_LABEL              0x0000E
 
 #define MPLS_IETF_IPV4_EXPLICIT_NULL_STRING          "ip4-explicit-null"
 #define MPLS_IETF_IPV4_EXPLICIT_NULL_BRIEF_STRING    "e-nul"
@@ -32,8 +47,22 @@
 
 #define MPLS_LABEL_INVALID (MPLS_IETF_MAX_LABEL+1)
 
+/**
+ * A value that is explicit about the end of the LSP. Specifying
+ * a label value is needed when the mode configuration (pipe/uniform)
+ * is also requested.
+ * imp-null implies a label swap. pop can be used for a deag.
+ */
+#define MPLS_LABEL_POP (MPLS_IETF_MAX_LABEL+2)
+
 #define MPLS_LABEL_IS_REAL(_lbl) \
-    (((_lbl) > MPLS_IETF_MIN_UNRES_LABEL) &&   \
+    (((_lbl) >= MPLS_IETF_MIN_UNRES_LABEL) &&  \
      ((_lbl) <= MPLS_IETF_MAX_UNRES_LABEL))
 
+/**
+ * The top bit of the index, which is the result of the MPLS lookup
+ * is used to determine if the DPO is a load-balance or a replicate
+ */
+#define MPLS_IS_REPLICATE 0x80000000
+
 #endif