X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=resources%2Ftraffic_scripts%2Fsend_icmp_wait_for_reply.py;fp=resources%2Ftraffic_scripts%2Fsend_icmp_wait_for_reply.py;h=0000000000000000000000000000000000000000;hp=2c79ae71366f10ae2de3564d8f5d23824da956c1;hb=79f5ba9bf7656972dd988508eff9465562dde42c;hpb=16ef90a2415aa3b65341fdb6517cf58721bfff7a diff --git a/resources/traffic_scripts/send_icmp_wait_for_reply.py b/resources/traffic_scripts/send_icmp_wait_for_reply.py deleted file mode 100755 index 2c79ae7136..0000000000 --- a/resources/traffic_scripts/send_icmp_wait_for_reply.py +++ /dev/null @@ -1,136 +0,0 @@ -#!/usr/bin/env python3 - -# 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 or ICMPv6.""" - -import sys -import ipaddress - -from scapy.layers.inet import ICMP, IP -from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest, ICMPv6EchoReply,\ - ICMPv6ND_NS -from scapy.layers.l2 import Ether -from scapy.packet import Raw - -from resources.libraries.python.PacketVerifier import RxQueue, TxQueue -from resources.libraries.python.TrafficScriptArg import TrafficScriptArg - - -def valid_ipv4(ip): - """Check if IP address has the correct IPv4 address format. - - :param ip: IP address. - :type ip: str - :return: True in case of correct IPv4 address format, - otherwise return False. - :rtype: bool - """ - try: - ipaddress.IPv4Address(ip) - return True - except (AttributeError, ipaddress.AddressValueError): - return False - - -def valid_ipv6(ip): - """Check if IP address has the correct IPv6 address format. - - :param ip: IP address. - :type ip: str - :return: True in case of correct IPv6 address format, - otherwise return False. - :rtype: bool - """ - try: - ipaddress.IPv6Address(ip) - return True - except (AttributeError, ipaddress.AddressValueError): - return False - - -def main(): - """Send ICMP echo request and wait for ICMP echo reply. It ignores all other - packets.""" - args = TrafficScriptArg( - [u"dst_mac", u"src_mac", u"dst_ip", u"src_ip", u"timeout"] - ) - - dst_mac = args.get_arg(u"dst_mac") - src_mac = args.get_arg(u"src_mac") - dst_ip = args.get_arg(u"dst_ip") - src_ip = args.get_arg(u"src_ip") - tx_if = args.get_arg(u"tx_if") - rx_if = args.get_arg(u"rx_if") - timeout = int(args.get_arg(u"timeout")) - wait_step = 1 - - rxq = RxQueue(rx_if) - txq = TxQueue(tx_if) - sent_packets = [] - - # Create empty ip ICMP packet - if valid_ipv4(src_ip) and valid_ipv4(dst_ip): - ip_layer = IP - icmp_req = ICMP - icmp_resp = ICMP - icmp_type = 0 # echo-reply - elif valid_ipv6(src_ip) and valid_ipv6(dst_ip): - ip_layer = IP - icmp_req = ICMPv6EchoRequest - icmp_resp = ICMPv6EchoReply - icmp_type = 0 # Echo Reply - else: - raise ValueError(u"IP not in correct format") - - icmp_request = ( - Ether(src=src_mac, dst=dst_mac) / - ip_layer(src=src_ip, dst=dst_ip) / - icmp_req() - ) - - # Send created packet on the interface - icmp_request /= Raw() - sent_packets.append(icmp_request) - txq.send(icmp_request) - - for _ in range(1000): - while True: - icmp_reply = rxq.recv(wait_step, ignore=sent_packets) - if icmp_reply is None: - timeout -= wait_step - if timeout < 0: - raise RuntimeError(u"ICMP echo Rx timeout") - - elif icmp_reply.haslayer(ICMPv6ND_NS): - # read another packet in the queue in case of ICMPv6ND_NS packet - continue - else: - # otherwise process the current packet - break - - if icmp_reply[ip_layer][icmp_resp].type == icmp_type: - if icmp_reply[ip_layer].src == dst_ip and \ - icmp_reply[ip_layer].dst == src_ip: - break - else: - raise RuntimeError(u"Max packet count limit reached") - - print(u"ICMP echo reply received.") - - sys.exit(0) - - -if __name__ == u"__main__": - main()