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;h=7677152801ca051e25c733b6a0c2b2fce6af7389;hp=a77f15efc2e3e5dc583611b25ba4577a5ff38cee;hb=HEAD;hpb=1942363fa62b6a079ae5552d20c90eb55f0033d9 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 a77f15efc2..0000000000 --- a/resources/traffic_scripts/send_icmp_wait_for_reply.py +++ /dev/null @@ -1,158 +0,0 @@ -#!/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 or ICMPv6.""" - -import sys -import ipaddress - -from scapy.layers.inet import ICMP, IP -from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest -from scapy.all import Ether - -from resources.libraries.python.PacketVerifier import RxQueue, TxQueue -from resources.libraries.python.TrafficScriptArg import TrafficScriptArg - - -def is_icmp_reply(pkt, ipformat): - """Return True if pkt is echo reply, else return False. If exception occurs - return False. - - :param pkt: Packet. - :param ipformat: Dictionary of names to distinguish IPv4 and IPv6. - :type pkt: dict - :type ipformat: dict - :rtype: bool - """ - #pylint: disable=bare-except - try: - if pkt[ipformat['IPType']][ipformat['ICMP_rep']].type == \ - ipformat['Type']: - return True - else: - return False - except: - return False - - -def address_check(request, reply, ipformat): - """Compare request packet source address with reply destination address - and vice versa. If exception occurs return False. - - :param request: Sent packet containing request. - :param reply: Received packet containing reply. - :param ipformat: Dictionary of names to distinguish IPv4 and IPv6. - :type request: dict - :type reply: dict - :type ipformat: dict - :rtype: bool - """ - #pylint: disable=bare-except - try: - r_src = reply[ipformat['IPType']].src == request[ipformat['IPType']].dst - r_dst = reply[ipformat['IPType']].dst == request[ipformat['IPType']].src - return r_src and r_dst - except: - return False - - -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(unicode(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(unicode(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(['dst_mac', 'src_mac', 'dst_ip', 'src_ip', - 'timeout']) - - dst_mac = args.get_arg('dst_mac') - src_mac = args.get_arg('src_mac') - dst_ip = args.get_arg('dst_ip') - src_ip = args.get_arg('src_ip') - tx_if = args.get_arg('tx_if') - rx_if = args.get_arg('rx_if') - timeout = int(args.get_arg('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): - icmp_request = (Ether(src=src_mac, dst=dst_mac) / - IP(src=src_ip, dst=dst_ip) / - ICMP()) - ip_format = {'IPType': 'IP', 'ICMP_req': 'ICMP', - 'ICMP_rep': 'ICMP', 'Type': 0} - elif valid_ipv6(src_ip) and valid_ipv6(dst_ip): - icmp_request = (Ether(src=src_mac, dst=dst_mac) / - IPv6(src=src_ip, dst=dst_ip) / - ICMPv6EchoRequest()) - ip_format = {'IPType': 'IPv6', 'ICMP_req': 'ICMPv6 Echo Request', - 'ICMP_rep': 'ICMPv6 Echo Reply', 'Type': 129} - else: - raise ValueError("IP not in correct format") - - # Send created packet on the interface - sent_packets.append(icmp_request) - txq.send(icmp_request) - - for _ in range(1000): - icmp_reply = rxq.recv(wait_step, ignore=sent_packets) - if icmp_reply is None: - timeout -= wait_step - if timeout < 0: - raise RuntimeError("ICMP echo Rx timeout") - elif is_icmp_reply(icmp_reply, ip_format): - if address_check(icmp_request, icmp_reply, ip_format): - break - else: - raise RuntimeError("Max packet count limit reached") - - print "ICMP echo reply received." - - sys.exit(0) - -if __name__ == "__main__": - main()