add Nicira Extension NXAST_DEC_TTL support

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
I201821180B · Jun 4, 2012 · db34d7a · db34d7a
1 parent ffa2378
commit db34d7a
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diff --git a/ryu/ofproto/ofproto_v1_0.py b/ryu/ofproto/ofproto_v1_0.py
@@ -246,6 +246,7 @@
 NXAST_RESUBMIT_TABLE = 14
 NXAST_OUTPUT_REG = 15
 NXAST_EXIT = 17
+NXAST_DEC_TTL = 18
 NXAST_FIN_TIMEOUT = 19
 NXAST_CONTROLLER = 20
 

diff --git a/ryu/ofproto/ofproto_v1_0_parser.py b/ryu/ofproto/ofproto_v1_0_parser.py
@@ -764,6 +764,24 @@ def parser(cls, buf, offset):
         return cls()
 
 
+@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_DEC_TTL)
+class NXActionDecTtl(NXActionHeader):
+    def __init__(self):
+        super(NXActionDecTtl, self).__init__(
+            ofproto_v1_0.NXAST_DEC_TTL,
+            ofproto_v1_0.NX_ACTION_HEADER_SIZE)
+
+    def serialize(self, buf, offset):
+        msg_pack_into(ofproto_v1_0.NX_ACTION_HEADER_PACK_STR, buf, offset,
+                      self.type, self.len, self.vendor, self.subtype)
+
+    @classmethod
+    def parser(cls, buf, offset):
+        (type_, len_, vendor, subtype) = struct.unpack_from(
+            ofproto_v1_0.NX_ACTION_HEADER_PACK_STR, buf, offset)
+        return cls()
+
+
 @NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_CONTROLLER)
 class NXActionController(NXActionHeader):
     def __init__(self, max_len, controller_id, reason):