From 39c9718210a7feb252d874c7d774a37e2afd287b Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Date: Fri, 2 Aug 2013 16:36:00 +0900
Subject: [PATCH] packet lib: provide a default impl of __len__

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/lib/packet/packet_base.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ryu/lib/packet/packet_base.py b/ryu/lib/packet/packet_base.py
index e61e7eee..e6774ba7 100644
--- a/ryu/lib/packet/packet_base.py
+++ b/ryu/lib/packet/packet_base.py
@@ -40,6 +40,9 @@ class PacketBase(object):
     def __init__(self):
         super(PacketBase, self).__init__()
 
+    def __len__(self):
+        return self._MIN_LEN
+
     @property
     def protocol_name(self):
         return self.__class__.__name__