def _handle_PacketIn(self, event):
'''
Table_mod msg
'''
packet = event.parsed
if packet.effective_ethertype == 0x0908:
print 'Dmac:', packet.dst
print 'eth type: %x' % packet.effective_ethertype
path = [(1, 1, 5), (4, 1, 3)] #(sw_id, in_port, out_port)
table_id = 1
entry_id = 0
for each_sw in path:
flow_mod_msg = of.ofp_flow_mod(tableId = table_id, index = entry_id,\
priority = 0, idleTimeout = 1000)
dmac = of.ofp_matchx(fieldId=1, offset=0, length=48)
print packet.dst.toStr()
dmac.set_value("0708090a0b0c")
dmac.set_mask("ffffffffffff")
flow_mod_msg.matchx.append(dmac)
'''
smac = of.ofp_matchx()
smac.fieldId = 2
smac.offset = 48
smac.length = 48
flow_mod_msg.matchx.append(smac)
type1 = of.ofp_matchx()
type1.fieldId = 3
type1.offset = 96
type1.length = 16
flow_mod_msg.matchx.append(type1)
'''
if each_sw[0] == 4:
instruction1 = of.ofp_instruction_applyaction()
version = of.ofp_matchx(fieldId=4, offset=100, length=4)
version.set_mask('f')
version.set_value('4')
action1 = of.ofp_action_setfield()
action1.fieldSetting = version
instruction1.actionList.append(action1)
flow_mod_msg.instruction.append(instruction1)
action2 = of.ofp_action_output()
action2.portId = each_sw[2] # out port
instruction2 = of.ofp_instruction_applyaction()
instruction2.actionList.append(action2)
flow_mod_msg.instruction.append(instruction2)
core.PofManager.add_flow_entry(sw_id2device_id[each_sw[0]],
table_id, flow_mod_msg)
def act_set_field (args): # [field_id, value, mask]
action = of.ofp_action_setfield()
action.fieldSetting.fieldId = args[0]
f = g.field_config[args[0]]
action.fieldSetting.offset = f[0]
action.fieldSetting.length = f[1]
action.fieldSetting.set_value(args[1])
action.fieldSetting.set_mask(args[2])
print ("add set_field action\n")
return action
def test_group_mod(event):
msg=of.ofp_group_mod()
msg.command = 0
msg.groupType = 0
#msg.actionNum = 4
msg.padding = 0
msg.groupId = 1
msg.counterId = 4
msg.padding = 0
msg.actions = []
action_1 = of.ofp_action_setfield()
action_1.ofActionType = 1
action_1.length = 44
action_1.fieldSetting = of.ofp_matchx()
action_1.fieldSetting.fieldId = 0
action_1.fieldSetting.offset = 0
action_1.fieldSetting.length = 0
action_1.fieldSetting.padding = 0
action_1.fieldSetting.set_value("00")
action_1.fieldSetting.set_mask("00")
msg.actions.append(action_1)
action_2 = of.ofp_action_addfield()
action_2.length = 20
action_2.fieldId = 0
action_2.fieldPosition = 0
action_2.fieldLength = 0
action_2.set_fieldValue("00")
msg.actions.append(action_2)
action_3 = of.ofp_action_group()
action_3.length = 12
action_3.groupId = 0
msg.actions.append(action_3)
action_4 = of.ofp_action_drop()
action_4.length = 12
action_4.reason = 0
msg.actions.append(action_4)
event.connection.send(msg)
def action_set_field(action_set_field_data):
set_field = of.ofp_action_setfield()
fieldsetting = of.ofp_matchx()
fieldname_temp = action_set_field_data[0]['name']
fieldname = string.split(fieldname_temp, ';')[0]
#value = string.atoi(action_set_field_data[0]['value'])
#mask = string.atoi(action_set_field_data[0]['mask'])
fieldsetting_of20 = core.PofManager.get_field_by_name(fieldname)
fieldsetting.fieldId = fieldsetting_of20.fieldId
fieldsetting.offset = fieldsetting_of20.offset
fieldsetting.length = fieldsetting_of20.length
fieldsetting.set_value(action_set_field_data[0]['value'])
fieldsetting.set_mask(action_set_field_data[0]['mask'])
set_field.fieldSetting = fieldsetting
return set_field
def test_OUTPUT(event):
print "we are really doing\n"
out_port = 1
num = len(event.connection.phyports)
msg = of.ofp_port_mod()
portmessage = event.connection.phyports[1]
msg.setByPortState(portmessage)
msg.desc.openflowEnable = 1
event.connection.send(msg)
ofmatch20_1 =of.ofp_match20()
ofmatch20_1.fieldId=46;
ofmatch20_1.offset=0;
ofmatch20_1.length=48;
msg = of.ofp_table_mod()
msg.flowTable.command=0 #OFPTC_ADD
msg.flowTable.tableType=0 #OF_MM_TABLE
msg.flowTable.matchFieldNum = 1
msg.flowTable.matchFieldList.append(ofmatch20_1)
#msg.flowTable.matchFieldNum=len(msg.flowTable.matchFieldList)
msg.flowTable.tableSize=128
msg.flowTable.tableId=0
msg.flowTable.tableName="FirstEntryTable"
msg.flowTable.keyLength=48
event.connection.send(msg)
##############################################################################
#flow_mod 1
###############################################################################
msg=of.ofp_flow_mod()
msg.counterId=1
msg.cookie=0
msg.cookieMask=0
msg.tableId=0
msg.tableType=0 #OF_MM_TABLE
msg.priority=0
msg.index=1
tempmatchx=of.ofp_matchx()
tempmatchx.fieldId=46
tempmatchx.offset=0
tempmatchx.length=48
tempmatchx.set_value("0000") # null
tempmatchx.set_mask("0000")
msg.matchx.append(tempmatchx)
#instruction
tempins=of.ofp_instruction_applyaction()
'''
action=of.ofp_action_setfield()
action.fieldSetting.fieldId=46
action.fieldSetting.offset=0
action.fieldSetting.length=48
action.fieldSetting.set_value("0000000000ff")
action.fieldSetting.set_mask("ffffffffffff")
tempins.actionList.append(action)
action=of.ofp_action_addfield()
action.fieldId = 47
action.fieldPosition = 96
action.fieldLength = 16
tempins.actionList.append(action)
action=of.ofp_action_deletefield()
action.tagPosition = 0
action.tagLengthValueType = 0
action.tagLengthValue = 48
tempins.actionList.append(action)
'''
action=of.ofp_action_output()
action.portId=out_port
action.metadataOffset=0
action.metadataLength=0
action.packetOffset=0
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
##############################################################################
#flow_mod 2
###############################################################################
msg=of.ofp_flow_mod()
msg.command =3
msg.counterId=1
msg.cookie=0
msg.cookieMask=0
msg.tableId=0
msg.tableType=0 #OF_MM_TABLE
msg.priority=0
msg.index=1
tempins=of.ofp_instruction_applyaction()
action=of.ofp_action_setfield()
action.fieldSetting.fieldId=46
action.fieldSetting.offset=0
action.fieldSetting.length=48
action.fieldSetting.set_value("0000000000ff")
action.fieldSetting.set_mask("ffffffffffff")
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
def test_MOVE_PACKET_OFFSET(event):
out_port = g.output_port
'''
num = len(event.connection.phyports)
msg = of.ofp_port_mod()
portmessage = event.connection.phyports[7]
msg.setByPortState(portmessage)
msg.desc.openflowEnable = 1
event.connection.send(msg)
'''
ofmatch20_1 = of.ofp_match20()
ofmatch20_1.fieldId = 12
# IP dest_ip addr
ofmatch20_1.offset = 0
ofmatch20_1.length = 32
msg = of.ofp_table_mod()
msg.flowTable.matchFieldList.append(ofmatch20_1)
msg.flowTable.command = 0 #OFPTC_ADD
msg.flowTable.tableType = 0 #OF_MM_TABLE
msg.flowTable.matchFieldNum = 1
#msg.flowTable.matchFieldNum=len(msg.flowTable.matchFieldList)
msg.flowTable.tableSize = 128
msg.flowTable.tableId = 0
msg.flowTable.tableName = "FirstEntryTable"
msg.flowTable.keyLength = 32
event.connection.send(msg)
##############################################################################
#flow_mod 0
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 0
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 0
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 12
tempmatchx.offset = 0
tempmatchx.length = 32
# even IP
tempmatchx.set_value("00000000")
tempmatchx.set_mask("00000001")
msg.matchx.append(tempmatchx)
#instruction
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_output()
action.portId = g.output_port
action.metadataOffset = 0
action.metadataLength = 0
action.packetOffset = 0
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
##############################################################################
#flow_mod 1
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 0
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 1
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 12
tempmatchx.offset = 0
tempmatchx.length = 32
tempmatchx.set_value("00000001") # 奇数IP
tempmatchx.set_mask("00000001")
msg.matchx.append(tempmatchx)
#instruction
tempins = of.ofp_instruction_movepacketoffset()
tempins.direction = 0
tempins.valueType = 0
tempins.move_value = 112
msg.instruction.append(tempins)
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_setfield()
action.fieldSetting.fieldId = 47 # ip offset 32
action.fieldSetting.offset = 64
action.fieldSetting.length = 8
action.fieldSetting.set_value("3f")
action.fieldSetting.set_mask("ff")
tempins.actionList.append(action)
action = of.ofp_action_setfield()
action.fieldSetting.fieldId = 48 # ip offset 32
action.fieldSetting.offset = 80
action.fieldSetting.length = 16
action.fieldSetting.set_value("dace")
action.fieldSetting.set_mask("ffff")
tempins.actionList.append(action)
action = of.ofp_action_output()
action.portId = out_port
action.metadataOffset = 0
action.metadataLength = 0
action.packetOffset = 0
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
def test_SET_FIELD(event):
out_port = 2
num = len(event.connection.phyports)
msg = of.ofp_port_mod()
portmessage = event.connection.phyports[3]
msg.setByPortState(portmessage)
msg.desc.openflowEnable = 1
event.connection.send(msg)
ofmatch20_1 = of.ofp_match20()
ofmatch20_1.fieldId = 1
ofmatch20_1.offset = 0
ofmatch20_1.length = 48
msg = of.ofp_table_mod()
msg.flowTable.matchFieldList.append(ofmatch20_1)
msg.flowTable.command = 0 #OFPTC_ADD
msg.flowTable.tableType = 0 #OF_MM_TABLE
msg.flowTable.matchFieldNum = 1
#msg.flowTable.matchFieldNum=len(msg.flowTable.matchFieldList)
msg.flowTable.tableSize = 128
msg.flowTable.tableId = 0
msg.flowTable.tableName = "FirstEntryTable"
msg.flowTable.keyLength = 48
event.connection.send(msg)
##############################################################################
#flow_mod 1
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 0
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 0
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 1
tempmatchx.offset = 0
tempmatchx.length = 48
tempmatchx.set_value("00") # null
tempmatchx.set_mask("00")
msg.matchx.append(tempmatchx)
#instruction
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_setfield()
action.fieldSetting.fieldId = 1
action.fieldSetting.offset = 0
action.fieldSetting.length = 48
action.fieldSetting.set_value("0000000000ff")
action.fieldSetting.set_mask("ffffffffffff")
tempins.actionList.append(action)
action = of.ofp_action_output()
action.portId = out_port
action.metadataOffset = 0
action.metadataLength = 0
action.packetOffset = 0
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
def test_ADD_FIELD(event):
'''
num = len(event.connection.phyports)
msg = of.ofp_port_mod()
portmessage = event.connection.phyports[g.input_port - 1]
msg.setByPortState(portmessage)
msg.desc.openflowEnable = 1
event.connection.send(msg)
'''
ofmatch20_1 = of.ofp_match20()
ofmatch20_1.fieldId = 23
#the last bit of dest IP
ofmatch20_1.offset = 0
ofmatch20_1.length = 32
msg = of.ofp_table_mod()
msg.flowTable.matchFieldList.append(ofmatch20_1)
msg.flowTable.command = 0 #OFPTC_ADD
msg.flowTable.tableType = 0 #OF_MM_TABLE
msg.flowTable.matchFieldNum = 1
#msg.flowTable.matchFieldNum = len(msg.flowTable.matchFieldList)
msg.flowTable.tableSize = 128
msg.flowTable.tableId = 0
msg.flowTable.tableName = "FirstEntryTable"
msg.flowTable.keyLength = 32
event.connection.send(msg)
##############################################################################
#flow_mod 0
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 0
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 0
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 23
tempmatchx.offset = 0
tempmatchx.length = 32
# even IP
tempmatchx.set_value("00000000")
tempmatchx.set_mask("00000001")
msg.matchx.append(tempmatchx)
#instruction
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_output()
action.portId = g.output_port
action.metadataOffset = 0
action.metadataLength = 0
action.packetOffset = 0
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
##############################################################################
#flow_mod 1
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 0
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 1
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 23
tempmatchx.offset = 0
tempmatchx.length = 32
#odd IP
tempmatchx.set_value("00000001")
tempmatchx.set_mask("00000001")
msg.matchx.append(tempmatchx)
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_addfield()
action.fieldId = 47
action.fieldPosition = 96
action.fieldLength = 32
tempins.actionList.append(action)
action = of.ofp_action_setfield()
action.fieldSetting.fieldId = 47 # vlan
action.fieldSetting.offset = 96
action.fieldSetting.length = 32
action.fieldSetting.set_value("8001000f") # vlan id: 15
action.fieldSetting.set_mask("ffffffff")
tempins.actionList.append(action)
action = of.ofp_action_output()
action.portId = g.output_port
action.metadataOffset = 0
action.metadataLength = 0
action.packetOffset = 0
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
def test_CONNECT(event):
'''
num = len(event.connection.phyports)
msg = of.ofp_port_mod()
portmessage = event.connection.phyports[g.input_port - 1]
msg.setByPortState(portmessage)
msg.desc.openflowEnable = 1
event.connection.send(msg)
'''
ofmatch20_1 = of.ofp_match20()
ofmatch20_1.fieldId = 0 #input port
ofmatch20_1.offset = 0
ofmatch20_1.length = 32
ofmatch20_2 = of.ofp_match20()
ofmatch20_2.fieldId = 47
ofmatch20_2.offset = 96
ofmatch20_2.length = 16
ofmatch20_3 = of.ofp_match20()
ofmatch20_3.fieldId = 12 #ip dest_ip
ofmatch20_3.offset = 0
ofmatch20_3.length = 32
###########################################
# table 0
###########################################
msg = of.ofp_table_mod()
msg.flowTable.matchFieldList.append(ofmatch20_2)
msg.flowTable.command = 0 #OFPTC_ADD
msg.flowTable.tableType = 0 #OF_MM_TABLE
msg.flowTable.matchFieldNum = 1
#msg.flowTable.matchFieldNum = len(msg.flowTable.matchFieldList)
msg.flowTable.tableSize = 128
msg.flowTable.tableId = 0
msg.flowTable.tableName = "FirstEntryTable"
msg.flowTable.keyLength = 16
event.connection.send(msg)
##############################################################################
#flow_mod 0-0
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 0
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 0
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 47
tempmatchx.offset = 96
tempmatchx.length = 16
tempmatchx.set_value("0806") #arp
tempmatchx.set_mask("ffff")
msg.matchx.append(tempmatchx)
#instruction
tempins = of.ofp_instruction_gototable()
tempins.nextTableId = 1
msg.instruction.append(tempins)
event.connection.send(msg)
##############################################################################
#flow_mod 0-1
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 0
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 1
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 47
tempmatchx.offset = 96
tempmatchx.length = 16
tempmatchx.set_value("0800") #ipv4
tempmatchx.set_mask("ffff")
msg.matchx.append(tempmatchx)
tempins = of.ofp_instruction_to_CP()
tempins.reasonType = 0 #0: immediate value; 1: from field
tempins.apply_action_flag = 0
tempins.end_flag = 0
tempins.max_len = 0xff
tempins.meta_pos = 0
tempins.meta_len = 0
tempins.reasonValue = 2
msg.instruction.append(tempins)
tempins = of.ofp_instruction_gototable()
tempins.nextTableId = 2
msg.instruction.append(tempins)
event.connection.send(msg)
###########################################
# table 1
###########################################
msg = of.ofp_table_mod()
msg.flowTable.matchFieldList.append(ofmatch20_1)
msg.flowTable.command = 0 #OFPTC_ADD
msg.flowTable.tableType = 0 #OF_MM_TABLE
msg.flowTable.matchFieldNum = 1
#msg.flowTable.matchFieldNum = len(msg.flowTable.matchFieldList)
msg.flowTable.tableSize = 128
msg.flowTable.tableId = 1
msg.flowTable.tableName = "table1"
msg.flowTable.keyLength = 32
event.connection.send(msg)
##############################################################################
#flow_mod 1-0
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 1
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 0
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 0
tempmatchx.offset = 0
tempmatchx.length = 32
# even IP
tempmatchx.set_value("00000001")
tempmatchx.set_mask("0000000f")
msg.matchx.append(tempmatchx)
#instruction
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_output()
action.portId = g.output_port
action.metadataOffset = 0
action.metadataLength = 0
action.packetOffset = 0
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
##############################################################################
#flow_mod 1-1
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 1
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 1
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 0
tempmatchx.offset = 0
tempmatchx.length = 32
#odd IP
tempmatchx.set_value("00000007")
tempmatchx.set_mask("0000000f")
msg.matchx.append(tempmatchx)
#instructions
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_output()
action.portId = 1
action.metadataOffset = 0
action.metadataLength = 0
action.packetOffset = 0
tempins.actionList.append(action)
msg.instruction.append(tempins)
event.connection.send(msg)
###################################################
# table 2
##################################################
msg = of.ofp_table_mod()
msg.flowTable.matchFieldList.append(ofmatch20_3)
msg.flowTable.command = 0 #OFPTC_ADD
msg.flowTable.tableType = 0 #OF_MM_TABLE
msg.flowTable.matchFieldNum = 1
msg.flowTable.tableSize = 128
msg.flowTable.tableId = 2
msg.flowTable.tableName = "table2"
msg.flowTable.keyLength = 32
event.connection.send(msg)
##############################################################################
#flow_mod 2-0
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 2
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 0
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 12
tempmatchx.offset = 0
tempmatchx.length = 32
tempmatchx.set_value("00000001") # even ip last bit
tempmatchx.set_mask("00000001")
msg.matchx.append(tempmatchx)
#instruction
'''
tempins = of.ofp_instruction_applyaction()
action=of.ofp_action_setfield()
action.fieldSetting.fieldId=49 # ip offset 32
action.fieldSetting.offset=32
action.fieldSetting.length=16
action.fieldSetting.set_value("ffaa")
action.fieldSetting.set_mask("ffff")
tempins.actionList.append(action)
msg.instruction.append(tempins)
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_modifyfield()
action.matchfield.fieldId = 48
action.matchfield.offset = 26*8
action.matchfield.length = 32
action.increment = 1
tempins.actionList.append(action)
msg.instruction.append(tempins)
'''
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_setfield()
action.fieldSetting.fieldId = 47 # ip offset 32
action.fieldSetting.offset = 64
action.fieldSetting.length = 8
action.fieldSetting.set_value("3f")
action.fieldSetting.set_mask("ff")
tempins.actionList.append(action)
action = of.ofp_action_setfield()
action.fieldSetting.fieldId = 48 # ip offset 32
action.fieldSetting.offset = 80
action.fieldSetting.length = 16
action.fieldSetting.set_value("dace")
action.fieldSetting.set_mask("ffff")
tempins.actionList.append(action)
msg.instruction.append(tempins)
tempins = of.ofp_instruction_gototable()
tempins.nextTableId = 1
msg.instruction.append(tempins)
event.connection.send(msg)
##############################################################################
#flow_mod 2-1
###############################################################################
msg = of.ofp_flow_mod()
msg.counterId = 1
msg.cookie = 0
msg.cookieMask = 0
msg.tableId = 2
msg.tableType = 0 #OF_MM_TABLE
msg.priority = 0
msg.index = 1
tempmatchx = of.ofp_matchx()
tempmatchx.fieldId = 12
tempmatchx.offset = 0
tempmatchx.length = 32
tempmatchx.set_value("00000000") # odd ip last bit
tempmatchx.set_mask("00000001")
msg.matchx.append(tempmatchx)
#instruction
tempins = of.ofp_instruction_applyaction()
action = of.ofp_action_modifyfield()
action.matchfield.fieldId = 48
action.matchfield.offset = 22 * 8
action.matchfield.length = 8
action.increment = -1
tempins.actionList.append(action)
action = of.ofp_action_setfield()
action.fieldSetting.fieldId = 49 # ip_checksum
action.fieldSetting.offset = 192
action.fieldSetting.length = 16
action.fieldSetting.set_value("0000")
action.fieldSetting.set_mask("ffff")
tempins.actionList.append(action)
action = of.ofp_action_calculatechecksum()
action.checksumPosType = 0
action.calcPosType = 0
action.checksumPosition = 80 + 112
action.checksumLength = 16
action.calcStarPosition = 112
action.calcLength = 160
tempins.actionList.append(action)
msg.instruction.append(tempins)
tempins = of.ofp_instruction_gototable()
tempins.nextTableId = 1
msg.instruction.append(tempins)
event.connection.send(msg)
