diff options
| -rw-r--r-- | resources/libraries/robot/map.robot | 48 | ||||
| -rwxr-xr-x | resources/traffic_scripts/send_lw_4o6_check_ipv4_udp.py | 126 | ||||
| -rw-r--r-- | tests/suites/softwire/lightweight_4over6.robot | 34 |
3 files changed, 208 insertions, 0 deletions
diff --git a/resources/libraries/robot/map.robot b/resources/libraries/robot/map.robot index 34a2e714c5..ba3349415e 100644 --- a/resources/libraries/robot/map.robot +++ b/resources/libraries/robot/map.robot @@ -110,3 +110,51 @@ | | ... | | Run Traffic Script On Node | | ... | send_ipv4_icmp_check_lw_4o6.py | ${tg_node} | ${args} + +| Send IPv4 UDP in IPv6 and check headers for lightweight 4over6 +| | [Documentation] +| | ... | Send empty UDP in IPv4 in IPv6 and check if IPv4 packet is correctly \ +| | ... | decapsulated from IPv6. +| | ... +| | ... | *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 IPv4 packet. Type: string +| | ... | - tx_src_mac - Source MAC address of IPv4 packet. Type: string +| | ... | - tx_dst_ipv6 - Destination IPv6 address. Type: string +| | ... | - tx_src_ipv6 - Source IPv6 address. Type: string +| | ... | - tx_dst_ipv4 - Destination IPv4 address. Type: string +| | ... | - tx_src_ipv4 - Source IPv4 address. Type: string +| | ... | - tx_src_udp_port - Source UDP port. Type: integer +| | ... | - rx_dst_mac - Expected destination MAC address. Type: string +| | ... | - rx_src_mac - Expected source MAC address. Type: string +| | ... +| | ... | *Return:* +| | ... | - No value returned +| | ... +| | ... | *Example:* +| | ... +| | ... | \| Send IPv4 UDP in IPv6 and check headers for lightweight 4over6 \ +| | ... | \| ${tg_node} \| eth3 \| eth2 \ +| | ... | \| 08:00:27:66:b8:57 \| 08:00:27:33:54:21 \ +| | ... | \| 2001:1::2 \| 2001:1::1 \| 20.0.0.1 \| 20.0.0.2 \ +| | ... | \| 1232 \| 08:00:27:46:2b:4c \| 08:00:27:f3:be:f0 \| +| | ... +| | [Arguments] +| | ... | ${tg_node} | ${tx_if} | ${rx_if} | ${tx_dst_mac} | ${tx_src_mac} +| | ... | ${tx_dst_ipv6} | ${tx_src_ipv6} | ${tx_dst_ipv4} | ${tx_src_ipv4} +| | ... | ${tx_src_udp_port} | ${rx_dst_mac} | ${rx_src_mac} +| | ... +| | ${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_src_mac | ${tx_src_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_src_udp_port | ${tx_src_udp_port} +| | ... | --rx_dst_mac | ${rx_dst_mac} | --rx_src_mac | ${rx_src_mac} +| | ... +| | Run Traffic Script On Node +| | ... | send_lw_4o6_check_ipv4_udp.py | ${tg_node} | ${args} diff --git a/resources/traffic_scripts/send_lw_4o6_check_ipv4_udp.py b/resources/traffic_scripts/send_lw_4o6_check_ipv4_udp.py new file mode 100755 index 0000000000..fcb745a407 --- /dev/null +++ b/resources/traffic_scripts/send_lw_4o6_check_ipv4_udp.py @@ -0,0 +1,126 @@ +#!/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 decapsulated.""" + +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_udp_in_ipv4(pkt): + """If UDP is in IPv4 packet return True, + else return False. False is returned also if exception occurs.""" + ipv4_type = int('0x0800', 16) # IPv4 + try: + if pkt.type == ipv4_type: + if pkt.payload.proto == 17: # UDP + 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_src_mac', + 'tx_dst_ipv6', 'tx_src_ipv6', + 'tx_dst_ipv4', 'tx_src_ipv4', 'tx_src_udp_port', + 'rx_dst_mac', 'rx_src_mac']) + rx_if = args.get_arg('rx_if') + tx_if = args.get_arg('tx_if') + tx_src_mac = args.get_arg('tx_src_mac') + tx_dst_mac = args.get_arg('tx_dst_mac') + 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_src_udp_port = int(args.get_arg('tx_src_udp_port')) + tx_dst_udp_port = 20000 + rx_dst_mac = args.get_arg('rx_dst_mac') + rx_src_mac = args.get_arg('rx_src_mac') + + 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) / + IPv6(src=tx_src_ipv6, dst=tx_dst_ipv6) / + IP(src=tx_src_ipv4, dst=tx_dst_ipv4) / + 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) + if _is_udp_in_ipv4(pkt): + ether = pkt + break + else: + raise RuntimeError("UDP in IPv4 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." + + ipv4 = ether.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 c3a4729646..8d0ea95e94 100644 --- a/tests/suites/softwire/lightweight_4over6.robot +++ b/tests/suites/softwire/lightweight_4over6.robot @@ -123,3 +123,37 @@ TC02: Encapsulate IPv4 ICMP into IPv6. IPv6 dst depends on IPv4 addr and ICMP ID | | ... | ${dut_to_tg_if1_mac} | ${test_ipv4_inside} | ${test_ipv4_outside} | | ... | ${test_icmp_id} | ${tg_to_dut_if2_mac} | ${dut_to_tg_if2_mac} | | ... | ${lw_rule_ipv6_dst} | ${lw_ipv6_src} + +TC03: Decapsulate IPv4 UDP from IPv6. +| | [Documentation] +| | ... | [Top] TG=DUT1. +| | ... | [Enc] Eth-IPv6-IPv4-UDP on TG_if2_DUT, Eth-IPv4-UDP on TG_if1-DUT. +| | ... | [Cfg] On DUT1 configure Map domain and Map rule. +| | ... | [Ver] Make TG send encapsulated UDP to DUT; verify TG received +| | ... | IPv4 non-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 Arp on DUT +| | ... | ${dut_node} | ${dut_to_tg_if1} +| | ... | ${test_ipv4_outside} +| | ... | ${tg_to_dut_if1_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} +| | Then Send IPv4 UDP in IPv6 and check headers for lightweight 4over6 +| | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if1} +| | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if2_mac} +| | ... | ${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} |