From 3de81a208fe59fb5fdcbcede272696ecae9ae24d Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Wed, 29 Jan 2014 12:05:57 +0900
Subject: [PATCH] Add OF1.4 CopyTtlIn action support

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/ofproto/ofproto_v1_4_parser.py | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/ryu/ofproto/ofproto_v1_4_parser.py b/ryu/ofproto/ofproto_v1_4_parser.py
index d1cf5c79..3f73e803 100644
--- a/ryu/ofproto/ofproto_v1_4_parser.py
+++ b/ryu/ofproto/ofproto_v1_4_parser.py
@@ -2343,6 +2343,25 @@ class OFPActionCopyTtlOut(OFPAction):
         return cls()
 
 
+@OFPAction.register_action_type(ofproto.OFPAT_COPY_TTL_IN,
+                                ofproto.OFP_ACTION_HEADER_SIZE)
+class OFPActionCopyTtlIn(OFPAction):
+    """
+    Copy TTL In action
+
+    This action copies the TTL from the outermost header with TTL to the
+    next-to-outermost header with TTL.
+    """
+    def __init__(self, type_=None, len_=None):
+        super(OFPActionCopyTtlIn, self).__init__()
+
+    @classmethod
+    def parser(cls, buf, offset):
+        (type_, len_) = struct.unpack_from(
+            ofproto.OFP_ACTION_HEADER_PACK_STR, buf, offset)
+        return cls()
+
+
 @OFPAction.register_action_type(ofproto.OFPAT_SET_FIELD,
                                 ofproto.OFP_ACTION_SET_FIELD_SIZE)
 class OFPActionSetField(OFPAction):