From 149c67b82f9af5144431f4d5b781ed345ca09fb8 Mon Sep 17 00:00:00 2001 From: Patrik Hrnciar Date: Wed, 28 Sep 2016 09:36:15 +0200 Subject: CSIT-227, CSIT-240 IPv4/IPv6 Multipath routing tests - add IPv4 Equal-cost multipath routing test - add IPv6 Equal-cost multipath routing test Change-Id: I62eaf9983b7767e124f80af7d8c8652ffc460cf8 Signed-off-by: Patrik Hrnciar --- .../traffic_scripts/send_icmp_check_multipath.py | 131 +++++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100755 resources/traffic_scripts/send_icmp_check_multipath.py (limited to 'resources/traffic_scripts/send_icmp_check_multipath.py') diff --git a/resources/traffic_scripts/send_icmp_check_multipath.py b/resources/traffic_scripts/send_icmp_check_multipath.py new file mode 100755 index 0000000000..4e39efdfcd --- /dev/null +++ b/resources/traffic_scripts/send_icmp_check_multipath.py @@ -0,0 +1,131 @@ +#!/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 IP ICMPv4/ICMPv6 packets traffic +and check if it is divided into two paths.""" + +import sys +import ipaddress + +from scapy.layers.inet import ICMP, IP +from scapy.layers.inet6 import IPv6 +from scapy.all import Ether +from scapy.layers.inet6 import ICMPv6EchoRequest + +from resources.libraries.python.PacketVerifier import RxQueue, TxQueue +from resources.libraries.python.TrafficScriptArg import TrafficScriptArg + + +def valid_ipv4(ip): + try: + ipaddress.IPv4Address(unicode(ip)) + return True + except (AttributeError, ipaddress.AddressValueError): + return False + + +def valid_ipv6(ip): + try: + ipaddress.IPv6Address(unicode(ip)) + return True + except (AttributeError, ipaddress.AddressValueError): + return False + + +def main(): + """Send 100 IP ICMP packets traffic and check if it is divided into + two paths.""" + args = TrafficScriptArg( + ['src_ip', 'dst_ip', 'tg_if1_mac', 'dut_if1_mac', 'dut_if2_mac', + 'path_1_mac', 'path_2_mac']) + + src_ip = args.get_arg('src_ip') + dst_ip = args.get_arg('dst_ip') + tg_if1_mac = args.get_arg('tg_if1_mac') + dut_if1_mac = args.get_arg('dut_if1_mac') + dut_if2_mac = args.get_arg('dut_if2_mac') + path_1_mac = args.get_arg('path_1_mac') + path_2_mac = args.get_arg('path_2_mac') + tx_if = args.get_arg('tx_if') + rx_if = args.get_arg('rx_if') + path_1_counter = 0 + path_2_counter = 0 + + rxq = RxQueue(rx_if) + txq = TxQueue(tx_if) + sent_packets = [] + ip_format = '' + pkt_raw = '' + separator = '' + + if valid_ipv4(src_ip): + separator = '.' + elif valid_ipv6(src_ip): + separator = ':' + else: + raise ValueError("Source address not in correct format") + + src_ip_base = (src_ip.rsplit(separator, 1))[0] + separator + + for i in range(1, 101): + if valid_ipv4(src_ip) and valid_ipv4(dst_ip): + pkt_raw = (Ether(src=tg_if1_mac, dst=dut_if1_mac) / + IP(src=src_ip_base+str(i), dst=dst_ip) / + ICMP()) + ip_format = 'IP' + elif valid_ipv6(src_ip) and valid_ipv6(dst_ip): + pkt_raw = (Ether(src=tg_if1_mac, dst=dut_if1_mac) / + IPv6(src=src_ip_base+str(i), dst=dst_ip) / + ICMPv6EchoRequest()) + ip_format = 'IPv6' + else: + raise ValueError("IP not in correct format") + + sent_packets.append(pkt_raw) + txq.send(pkt_raw) + ether = rxq.recv(2) + + if ether is None: + raise RuntimeError("ICMP echo Rx timeout") + if not ether.haslayer(ip_format): + raise RuntimeError("Not an IP packet received {0}" + .format(ether.__repr__())) + + if ether['Ethernet'].src != dut_if2_mac: + raise RuntimeError("Source MAC address error") + + if ether['Ethernet'].dst == path_1_mac: + path_1_counter += 1 + elif ether['Ethernet'].dst == path_2_mac: + path_2_counter += 1 + else: + raise RuntimeError("Destination MAC address error") + + if (path_1_counter + path_2_counter) != 100: + raise RuntimeError("Packet loss: recevied only {} packets of 100 " + .format(path_1_counter + path_2_counter)) + + if path_1_counter == 0: + raise RuntimeError("Path 1 error!") + + if path_2_counter == 0: + raise RuntimeError("Path 2 error!") + + print "Path_1 counter: {}".format(path_1_counter) + print "Path_2 counter: {}".format(path_2_counter) + + sys.exit(0) + +if __name__ == "__main__": + main() -- cgit 1.2.3-korg