From 91b4f9f5fa6538be7a4e00bbe10baec1f7e3d1c7 Mon Sep 17 00:00:00 2001
From: OHMURA Kei <ohmura.kei@lab.ntt.co.jp>
Date: Tue, 20 Nov 2012 06:47:30 +0900
Subject: packet lib: add arp constants

Signed-off-by: OHMURA Kei <ohmura.kei@lab.ntt.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/lib/packet/arp.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/ryu/lib/packet/arp.py b/ryu/lib/packet/arp.py
index 24ba2c02..3cef38dc 100644
--- a/ryu/lib/packet/arp.py
+++ b/ryu/lib/packet/arp.py
@@ -16,6 +16,14 @@
 import struct
 from . import packet_base
 
+ARP_HW_TYPE_ETHERNET = 1  # ethernet hardware type
+
+# arp operation codes
+ARP_REQUEST = 1
+ARP_REPLY = 2
+ARP_REV_REQUEST = 3
+ARP_REV_REPLY = 4
+
 
 class arp(packet_base.PacketBase):
     _PACK_STR = '!HHBBH6sI6sI'
-- 
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