Add SetArpSenderHardwareAddress action

Rakefile

@@ -1,7 +1,7 @@
 require 'bundler/gem_tasks'
 
 RELISH_PROJECT = 'trema/pio'
-FLAY_THRESHOLD = 1294
+FLAY_THRESHOLD = 1343
 
 task default: :travis
 task test: [:spec, :cucumber]

features/open_flow13/set_arp_sender_hardware_address.feature

@@ -0,0 +1,14 @@
+@open_flow13
+Feature: Pio::SetArpSenderHardwareAddress
+
+  Scenario: new('00:00:de:ad:be:ef')
+    When I try to create an OpenFlow action with:
+      """
+      Pio::SetArpSenderHardwareAddress.new('00:00:de:ad:be:ef')
+      """
+    Then it should finish successfully
+    And the action has the following fields and values:
+      | field         |             value |
+      | action_type   |                25 |
+      | action_length |                16 |
+      | mac_address   | 00:00:de:ad:be:ef |

lib/pio/open_flow.rb

@@ -20,7 +20,8 @@ def self.switch_version(version)
        :SetSourceMacAddress, :SetDestinationMacAddress, :PortStatus, :Stats,
        :FlowStats, :DescriptionStats, :AggregateStats, :TableStats, :PortStats,
        :QueueStats, :Error, :NiciraResubmit, :SetArpOperation,
-       :SetArpSenderProtocolAddress, :NiciraResubmitTable].each do |each|
+       :SetArpSenderProtocolAddress, :SetArpSenderHardwareAddress,
+       :NiciraResubmitTable].each do |each|
         set_message_class_name each, version
         @version = version.to_s
       end

lib/pio/open_flow13.rb

@@ -15,6 +15,7 @@
 # Actions
 require 'pio/open_flow13/send_out_port'
 require 'pio/open_flow13/set_arp_operation'
+require 'pio/open_flow13/set_arp_sender_hardware_address'
 require 'pio/open_flow13/set_arp_sender_protocol_address'
 require 'pio/open_flow13/set_destination_mac_address'
 require 'pio/open_flow13/set_source_mac_address'

lib/pio/open_flow13/set_arp_sender_hardware_address.rb

@@ -0,0 +1,23 @@
+require 'pio/open_flow/action'
+require 'pio/open_flow13/match'
+
+module Pio
+  module OpenFlow13
+    # Set ARP sender hardware address field
+    class SetArpSenderHardwareAddress < OpenFlow::Action
+      action_header action_type: 25, action_length: 16
+
+      uint16 :oxm_class, value: Match::OXM_CLASS_OPENFLOW_BASIC
+      bit7 :oxm_field, value: Match::ArpSenderHardwareAddress::OXM_FIELD
+      bit1 :oxm_hasmask, value: 0
+      uint8 :oxm_length, value: 6
+      mac_address :mac_address
+      string :padding, length: 2
+      hide :padding
+
+      def initialize(mac_address)
+        super mac_address: mac_address
+      end
+    end
+  end
+end