diff options
| -rw-r--r-- | resources/libraries/robot/map.robot | 58 | ||||
| -rwxr-xr-x | resources/traffic_scripts/send_lw_4o6_check_hairpinning_udp.py | 144 | ||||
| -rw-r--r-- | tests/suites/softwire/lightweight_4over6.robot | 41 |
3 files changed, 243 insertions, 0 deletions
diff --git a/resources/libraries/robot/map.robot b/resources/libraries/robot/map.robot index ba3349415e..7462befa41 100644 --- a/resources/libraries/robot/map.robot +++ b/resources/libraries/robot/map.robot @@ -158,3 +158,61 @@ | | ... | | Run Traffic Script On Node | | ... | send_lw_4o6_check_ipv4_udp.py | ${tg_node} | ${args} + +| Send IPv4 UDP in IPv6 and check headers for lightweight hairpinning +| | [Documentation] +| | ... | Send empty UDP in IPv4 in IPv6 and check if IPv4 packet is correctly \ +| | ... | decapsulated and re-encapsulated to another lwB4. +| | ... +| | ... | *Arguments:* +| | ... | - tg_node - Node where to run traffic script. Type: string +| | ... | - tx_if - Interface from where to send ICPMv4 packet. Type: string +| | ... | - rx_if - Interface where to receive IPinIP packet. Type: string +| | ... | - tx_dst_mac - Destination MAC address of send IPv6 packet. \ +| | ... | Type: string +| | ... | - tx_dst_ipv6 - Destination IPv6 address (lwAFTR). Type: string +| | ... | - tx_src_ipv6 - Source IPv6 address (lwB4_1). Type: string +| | ... | - tx_dst_ipv4 - Destination IPv4 address. Type: string +| | ... | - tx_src_ipv4 - Source IPv4 address. Type: string +| | ... | - tx_dst_udp_port - Destination UDP port (PSID_2 related). \ +| | ... | Type: integer +| | ... | - tx_src_udp_port - Source UDP port (PSID_1 related). Type: integer +| | ... | - rx_dst_mac - Expected destination MAC address. Type: string +| | ... | - rx_src_mac - Expected source MAC address. Type: string +| | ... | - rx_dst_ipv6 - Expected destination IPv6 address (lwB4_2). \ +| | ... | Type: string +| | ... | - rx_src_ipv6 - Expected source IPv6 address (lwAFTR). Type: string +| | ... +| | ... | *Return:* +| | ... | - No value returned +| | ... +| | ... | *Example:* +| | ... +| | ... | \| Send IPv4 UDP in IPv6 and check headers for lightweight hairpinning \ +| | ... | \| ${tg_node} \| port3 \| port3 \| 08:00:27:f3:be:f0 \| 2001:1::1 \ +| | ... | \| 2001:1::2 \| 20.0.0.1 \| 20.0.0.1 \| ${6232} \| ${1232} \ +| | ... | \| 08:00:27:46:2b:4c \| 08:00:27:f3:be:f0 \| 2001:1::3 \| 2001:1::1 \| +| | ... +| | [Arguments] +| | ... | ${tg_node} | ${tx_if} | ${rx_if} +| | ... | ${tx_dst_mac} +| | ... | ${tx_dst_ipv6} | ${tx_src_ipv6} +| | ... | ${tx_dst_ipv4} | ${tx_src_ipv4} +| | ... | ${tx_dst_udp_port} | ${tx_src_udp_port} +| | ... | ${rx_dst_mac} | ${rx_src_mac} +| | ... | ${rx_dst_ipv6} | ${rx_src_ipv6} +| | ... +| | ${tx_name}= | Get interface name | ${tg_node} | ${tx_if} +| | ${rx_name}= | Get interface name | ${tg_node} | ${rx_if} +| | ${args}= | Catenate +| | ... | --tx_if | ${tx_name} | --rx_if | ${rx_name} +| | ... | --tx_dst_mac | ${tx_dst_mac} +| | ... | --tx_dst_ipv6 | ${tx_dst_ipv6} | --tx_src_ipv6 | ${tx_src_ipv6} +| | ... | --tx_dst_ipv4 | ${tx_dst_ipv4} | --tx_src_ipv4 | ${tx_src_ipv4} +| | ... | --tx_dst_udp_port | ${tx_dst_udp_port} +| | ... | --tx_src_udp_port | ${tx_src_udp_port} +| | ... | --rx_dst_mac | ${rx_dst_mac} | --rx_src_mac | ${rx_src_mac} +| | ... | --rx_dst_ipv6 | ${rx_dst_ipv6} | --rx_src_ipv6 | ${rx_src_ipv6} +| | ... +| | Run Traffic Script On Node +| | ... | send_lw_4o6_check_hairpinning_udp.py | ${tg_node} | ${args} diff --git a/resources/traffic_scripts/send_lw_4o6_check_hairpinning_udp.py b/resources/traffic_scripts/send_lw_4o6_check_hairpinning_udp.py new file mode 100755 index 0000000000..df6bc42da5 --- /dev/null +++ b/resources/traffic_scripts/send_lw_4o6_check_hairpinning_udp.py @@ -0,0 +1,144 @@ +#!/usr/bin/env python +# Copyright (c) 2016 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Traffic script that sends an empty IPv4 UDP datagram encapsulated in IPv6 +and checks if is correctly re-encapsulated.""" + +import sys + +from scapy.layers.l2 import Ether +from scapy.layers.inet6 import IPv6 +from scapy.layers.inet import IP, UDP + +from resources.libraries.python.PacketVerifier import RxQueue, TxQueue +from resources.libraries.python.TrafficScriptArg import TrafficScriptArg + + +def _is_ipv4_in_ipv6(pkt): + """If IPv6 next header type in the given pkt is IPv4, return True, + else return False. False is returned also if exception occurs.""" + ipv6_type = int('0x86dd', 16) # IPv6 + try: + if pkt.type == ipv6_type: + if pkt.payload.nh == 4: + return True + except: # pylint: disable=bare-except + return False + return False + + +def main(): # pylint: disable=too-many-statements, too-many-locals + """Main function of the script file.""" + args = TrafficScriptArg(['tx_dst_mac', + 'tx_dst_ipv6', 'tx_src_ipv6', + 'tx_dst_ipv4', 'tx_src_ipv4', + 'tx_dst_udp_port', 'tx_src_udp_port', + 'rx_dst_mac', 'rx_src_mac', + 'rx_dst_ipv6', 'rx_src_ipv6']) + rx_if = args.get_arg('rx_if') + tx_if = args.get_arg('tx_if') + tx_dst_mac = args.get_arg('tx_dst_mac') + tx_src_mac = '02:00:00:00:00:01' + + tx_dst_ipv6 = args.get_arg('tx_dst_ipv6') + tx_src_ipv6 = args.get_arg('tx_src_ipv6') + tx_dst_ipv4 = args.get_arg('tx_dst_ipv4') + tx_src_ipv4 = args.get_arg('tx_src_ipv4') + tx_dst_udp_port = int(args.get_arg('tx_dst_udp_port')) + tx_src_udp_port = int(args.get_arg('tx_src_udp_port')) + rx_dst_mac = args.get_arg('rx_dst_mac') + rx_src_mac = args.get_arg('rx_src_mac') + rx_dst_ipv6 = args.get_arg('rx_dst_ipv6') + rx_src_ipv6 = args.get_arg('rx_src_ipv6') + + rxq = RxQueue(rx_if) + txq = TxQueue(tx_if) + sent_packets = [] + + # Create empty UDP datagram in IPv4 and IPv6 + tx_pkt = Ether(dst=tx_dst_mac, src=tx_src_mac) + tx_pkt /= IPv6(src=tx_src_ipv6, dst=tx_dst_ipv6) + tx_pkt /= IP(src=tx_src_ipv4, dst=tx_dst_ipv4) + tx_pkt /= UDP(sport=tx_src_udp_port, dport=tx_dst_udp_port) + + txq.send(tx_pkt) + sent_packets.append(tx_pkt) + + for _ in range(5): + pkt = rxq.recv(2, ignore=sent_packets) + if _is_ipv4_in_ipv6(pkt): + ether = pkt + break + else: + raise RuntimeError("IPv4 in IPv6 Rx error.") + + # check ethernet + if ether.dst != rx_dst_mac: + raise RuntimeError("Destination MAC error {} != {}.". + format(ether.dst, rx_dst_mac)) + print "Destination MAC: OK." + + if ether.src != rx_src_mac: + raise RuntimeError("Source MAC error {} != {}.". + format(ether.src, rx_src_mac)) + print "Source MAC: OK." + + ipv6 = ether.payload + + # check ipv6 + if ipv6.dst != rx_dst_ipv6: + raise RuntimeError("Destination IPv6 error {} != {}.". + format(ipv6.dst, rx_dst_ipv6)) + print "Destination IPv6: OK." + + if ipv6.src != rx_src_ipv6: + raise RuntimeError("Source IPv6 error {} != {}.". + format(ipv6.src, rx_src_ipv6)) + print "Source IPv6: OK." + + ipv4 = ipv6.payload + + # check ipv4 + if ipv4.dst != tx_dst_ipv4: + raise RuntimeError("Destination IPv4 error {} != {}.". + format(ipv4.dst, tx_dst_ipv4)) + print "Destination IPv4: OK." + + if ipv4.src != tx_src_ipv4: + raise RuntimeError("Source IPv4 error {} != {}.". + format(ipv4.src, tx_src_ipv4)) + print "Source IPv4: OK." + + if ipv4.proto != 17: # UDP + raise RuntimeError("IPv4 protocol error {} != UDP.". + format(ipv4.proto)) + print "IPv4 protocol: OK." + + udp = ipv4.payload + + # check udp + if udp.dport != tx_dst_udp_port: + raise RuntimeError("UDP dport error {} != {}.". + format(udp.dport, tx_dst_udp_port)) + print "UDP dport: OK." + + if udp.sport != tx_src_udp_port: + raise RuntimeError("UDP sport error {} != {}.". + format(udp.sport, tx_src_udp_port)) + print "UDP sport: OK." + + sys.exit(0) + +if __name__ == "__main__": + main() diff --git a/tests/suites/softwire/lightweight_4over6.robot b/tests/suites/softwire/lightweight_4over6.robot index 8d0ea95e94..68eea42d8e 100644 --- a/tests/suites/softwire/lightweight_4over6.robot +++ b/tests/suites/softwire/lightweight_4over6.robot @@ -51,11 +51,14 @@ | ${lw_psid_offset}= | ${6} | ${lw_rule_psid}= | ${52} | ${lw_rule_ipv6_dst}= | 2001:1::2 +| ${lw_rule_2_psid}= | ${22} +| ${lw_rule_2_ipv6_dst}= | 2001:1::3 | ${test_ipv4_inside}= | 20.0.0.1 | ${test_ipv4_outside}= | 10.0.0.100 # test_port depends on psid, length, offset | ${test_port}= | ${1232} | ${test_icmp_id}= | ${1232} +| ${test_2_port}= | ${6232} *** Test Cases *** | TC01: Encapsulate IPv4 into IPv6. IPv6 dst depends on IPv4 and UDP destination @@ -157,3 +160,41 @@ TC03: Decapsulate IPv4 UDP from IPv6. | | ... | ${lw_ipv6_src} | ${lw_rule_ipv6_dst} | | ... | ${test_ipv4_outside} | ${test_ipv4_inside} | ${test_port} | | ... | ${tg_to_dut_if1_mac} | ${dut_to_tg_if1_mac} + +TC04: Hairpinning of traffic between two lwB4 +| | [Documentation] +| | ... | [Top] DUT1-TG. +| | ... | [Enc] Eth-IPv6-IPv4-UDP on TG_if2_DUT, Eth-IPv6-IPv4-UDP on TG_if2_DUT. +| | ... | [Cfg] On DUT1 configure Map domain and two Map rules. +| | ... | [Ver] Make TG send encapsulated UDP to DUT; verify TG received +| | ... | encapsulated packet is correct. +| | ... | [Ref] RFC7596 RFC7597 +| | ... +| | Given Path for 2-node testing is set +| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} +| | And Interfaces in 2-node path are up +| | And IP addresses are set on interfaces +| | ... | ${dut_node} | ${dut_to_tg_if1} | ${dut_ip4} | ${ipv4_prefix_len} +| | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut_ip6} | ${ipv6_prefix_len} +| | And Add IP Neighbor +| | ... | ${dut_node} | ${dut_to_tg_if2} | ${lw_rule_2_ipv6_dst} +| | ... | ${tg_to_dut_if2_mac} +| | ${domain_index}= +| | ... | When Map Add Domain +| | ... | ${dut_node} | ${lw_ipv4_pfx} | ${lw_ipv6_pfx} +| | ... | ${lw_ipv6_src} | 0 | ${lw_psid_offset} +| | ... | ${lw_psid_length} +| | And Map Add Rule +| | ... | ${dut_node} | ${domain_index} | ${lw_rule_psid} +| | ... | ${lw_rule_ipv6_dst} +| | And Map Add Rule +| | ... | ${dut_node} | ${domain_index} | ${lw_rule_2_psid} +| | ... | ${lw_rule_2_ipv6_dst} +| | Then Send IPv4 UDP in IPv6 and check headers for lightweight hairpinning +| | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if2} +| | ... | ${dut_to_tg_if2_mac} +| | ... | ${lw_ipv6_src} | ${lw_rule_ipv6_dst} +| | ... | ${test_ipv4_inside} | ${test_ipv4_inside} +| | ... | ${test_2_port} | ${test_port} +| | ... | ${tg_to_dut_if2_mac} | ${dut_to_tg_if2_mac} +| | ... | ${lw_rule_2_ipv6_dst} | ${lw_ipv6_src} |