def runTest(self):
"""
Add four flow entries:
First Table; Match IP Src A; goto Second Table
Second Table; Match IP Src A; send to 1, goto Third Table
Third Table; Match IP Src A; clear action, goto Fourth Table
Fourth Table; Match IP Src A; send to 2
Then send in 2 packets:
IP A, TCP C; expect out port 1
IP A, TCP B; expect out port 1
@param self object instance
@param EX_ACL_TABLE first table
@param WC_ACL_TABLE second table
@param WC_SERV_TABLE third table
@param EX_L2_TABLE fourth table
"""
of_ports = testutils.clear_switch(self, pa_port_map.keys(), pa_logger)
# Set up first match
#write_goto(self, testutils.EX_ACL_TABLE, testutils.WC_ACL_TABLE)
act = action.action_set_field()
field = match.eth_src(parse.parse_mac("aa:aa:aa:aa:aa:aa"))
act.field.add(field)
testutils.write_goto_action(self,
testutils.WC_ACL_TABLE,
testutils.WC_SERV_TABLE,
act=act)
# Set up second match
testutils.write_goto_output(self, testutils.WC_SERV_TABLE,
testutils.EX_L3_TABLE, of_ports[0],
of_ports[2])
# Set up third match, "Clear Action"
inst = instruction.instruction_clear_actions()
testutils.write_goto(self,
testutils.EX_L3_TABLE,
testutils.WC_L3_TABLE,
of_ports[2],
add_inst=inst)
# Set up fourth match
testutils.write_output(self, testutils.WC_L3_TABLE, of_ports[1])
#write_output(self, testutils.EX_L2_TABLE, 4)
# Generate a packet matching flow 1, 2, and 3; rcv on port[1]
testutils.reply_check_dp(self,
tcp_sport=1234,
ing_port=of_ports[2],
egr_port=of_ports[1])
def runTest(self):
"""
Add four flow entries:
First Table; Match IP Src A; goto Second Table
Second Table; Match IP Src A; send to 1, goto Third Table
Third Table; Match IP Src A; clear action, goto Fourth Table
Fourth Table; Match IP Src A; send to 2
Then send in 2 packets:
IP A, TCP C; expect out port 1
IP A, TCP B; expect out port 1
@param self object instance
@param EX_ACL_TABLE first table
@param WC_ACL_TABLE second table
@param WC_SERV_TABLE third table
@param EX_L2_TABLE fourth table
"""
of_ports = testutils.clear_switch(self, pa_port_map.keys(), pa_logger)
# Set up first match
#write_goto(self, testutils.EX_ACL_TABLE, testutils.WC_ACL_TABLE)
act = action.action_set_field()
field = match.eth_src(parse.parse_mac("aa:aa:aa:aa:aa:aa"))
act.field.add(field)
testutils.write_goto_action(self, testutils.WC_ACL_TABLE, testutils.WC_SERV_TABLE ,act = act)
# Set up second match
testutils.write_goto_output(self, testutils.WC_SERV_TABLE, testutils.EX_L3_TABLE, of_ports[0], of_ports[2])
# Set up third match, "Clear Action"
inst = instruction.instruction_clear_actions()
testutils.write_goto(self, testutils.EX_L3_TABLE, testutils.WC_L3_TABLE, of_ports[2], add_inst=inst)
# Set up fourth match
testutils.write_output(self, testutils.WC_L3_TABLE, of_ports[1])
#write_output(self, testutils.EX_L2_TABLE, 4)
# Generate a packet matching flow 1, 2, and 3; rcv on port[1]
testutils.reply_check_dp(self, tcp_sport=1234,
ing_port = of_ports[2], egr_port = of_ports[1])
def packet_to_flow_match(packet):
"""
Create a flow match that matches packet with the given wildcards
@param packet The packet to use as a flow template
@param pkt_format Currently only L2 is supported. Will indicate the
overall packet type for parsing
@return An ofp_match object if successful. None if format is not
recognized. The wildcards of the match will be cleared for the
values extracted from the packet.
@todo check min length of packet
@todo Check if packet is other than L2 format
@todo implement other fields covered by OpenFlow 1.2
"""
match_ls = match_list()
if Ether in packet:
ether = packet[Ether]
eth_type = match.eth_type(ether.type)
eth_dst = match.eth_dst(parse_mac(ether.dst))
eth_src = match.eth_src(parse_mac(ether.src))
match_ls.add(eth_type)
match_ls.add(eth_dst)
match_ls.add(eth_src)
else:
return match_ls
if Dot1Q in packet:
#TODO: nicer way to get last vlan tag?
vlan = packet[Dot1Q:0]
vlan_vid = match.vlan_vid(vlan.vlan)
vlan_pcp = match.vlan_pcp(vlan.prio)
match_ls.add(vlan_vid)
match_ls.add(vlan_pcp)
vlan_pl = vlan.payload
while vlan_pl is not None and vlan_pl.name == Dot1Q.name:
vlan = vlan_pl
vlan_pl = vlan.payload
#We need to overwrite the already
# inserted eth_type
eth_index = match.tlvs.index()
eth_type = match.eth_type(vlan.type)
match_ls.tlvs.insert(vlan.type, eth_index)
#TODO ARP
if MPLS in packet:
mpls = packet[MPLS:0]
mpls_label = match.mpls_label(mpls.label)
mpls_tc = match.mpls_tc(mpls.cos)
match_ls.add(mpls_label)
match_ls.add(mpls_tc)
return match_ls
if IP in packet:
ip = packet[IP]
ipv4_src = match.ipv4_src(parse_ip(ip.src))
ipv4_dst = match.ipv4_dst(parse_ip(ip.dst))
ip_dscp = match.ip_dscp(ip.tos >> 2)
ip_ecn = match.ip_ecn(ip.tos & 0x03)
match_ls.add(ipv4_src)
match_ls.add(ipv4_dst)
match_ls.add(ip_dscp)
match_ls.add(ip_ecn)
else:
return match_ls
if TCP in packet:
tcp = packet[TCP]
ip_proto = match.ip_proto(6)
tcp_src = match.tcp_src(tcp.sport)
tcp_dst = match.tcp_dst(tcp.dport)
match_ls.add(ip_proto)
match_ls.add(tcp_src)
match_ls.add(tcp_dst)
return match_ls
if UDP in packet:
udp = packet[UDP]
ip_proto = match.ip_proto(17)
udp_src = match.tcp_src(udp.sport)
udp_dst = match.tcp_dst(udp.dport)
match_ls.add(ip_proto)
match_ls.add(udp_src)
match_ls.add(udp_dst)
returnmatch_ls
if ICMP in packet:
icmp = packet[ICMP]
ip_proto = match.ip_proto(1)
icmp_type = match.icmp_type(icmp.type)
icmp_code = match.icmp_code(icmp.code)
match_ls.add(icmp_type)
match_ls.add(icmp_code)
return match_ls
return match_ls
def packet_to_flow_match(packet):
"""
Create a flow match that matches packet with the given wildcards
@param packet The packet to use as a flow template
@param pkt_format Currently only L2 is supported. Will indicate the
overall packet type for parsing
@return An ofp_match object if successful. None if format is not
recognized. The wildcards of the match will be cleared for the
values extracted from the packet.
@todo check min length of packet
@todo Check if packet is other than L2 format
@todo implement other fields covered by OpenFlow 1.2
"""
match_ls = match_list()
if Ether in packet:
ether = packet[Ether]
eth_type = match.eth_type(ether.type)
eth_dst = match.eth_dst(parse_mac(ether.dst))
eth_src = match.eth_src(parse_mac(ether.src))
match_ls.add(eth_type)
match_ls.add(eth_dst)
match_ls.add(eth_src)
else:
return match_ls
if Dot1Q in packet:
#TODO: nicer way to get last vlan tag?
vlan = packet[Dot1Q:0]
vlan_vid = match.vlan_vid(vlan.vlan)
vlan_pcp = match.vlan_pcp(vlan.prio)
match_ls.add(vlan_vid)
match_ls.add(vlan_pcp)
vlan_pl = vlan.payload
while vlan_pl is not None and vlan_pl.name == Dot1Q.name:
vlan = vlan_pl
vlan_pl = vlan.payload
#We need to overwrite the already
# inserted eth_type
eth_index = match.tlvs.index()
eth_type = match.eth_type(vlan.type)
match_ls.tlvs.insert(vlan.type,eth_index)
#TODO ARP
if MPLS in packet:
mpls = packet[MPLS:0]
mpls_label = match.mpls_label(mpls.label)
mpls_tc = match.mpls_tc(mpls.cos)
match_ls.add(mpls_label)
match_ls.add(mpls_tc)
return match_ls
if IP in packet:
ip = packet[IP]
ipv4_src = match.ipv4_src(parse_ip(ip.src))
ipv4_dst = match.ipv4_dst(parse_ip(ip.dst))
ip_dscp = match.ip_dscp(ip.tos >> 2)
ip_ecn = match.ip_ecn(ip.tos & 0x03)
match_ls.add(ipv4_src)
match_ls.add(ipv4_dst)
match_ls.add(ip_dscp)
match_ls.add(ip_ecn)
else:
return match_ls
if TCP in packet:
tcp = packet[TCP]
ip_proto = match.ip_proto(6)
tcp_src = match.tcp_src(tcp.sport)
tcp_dst = match.tcp_dst(tcp.dport)
match_ls.add(ip_proto)
match_ls.add(tcp_src)
match_ls.add(tcp_dst)
return match_ls
if UDP in packet:
udp = packet[UDP]
ip_proto = match.ip_proto(17)
udp_src = match.tcp_src(udp.sport)
udp_dst = match.tcp_dst(udp.dport)
match_ls.add(ip_proto)
match_ls.add(udp_src)
match_ls.add(udp_dst)
returnmatch_ls
if ICMP in packet:
icmp = packet[ICMP]
ip_proto = match.ip_proto(1)
icmp_type = match.icmp_type(icmp.type)
icmp_code = match.icmp_code(icmp.code)
match_ls.add(icmp_type)
match_ls.add(icmp_code)
return match_ls
return match_ls
