X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=resources%2Ftraffic_scripts%2Fsend_ip_check_headers.py;fp=resources%2Ftraffic_scripts%2Fsend_ip_check_headers.py;h=0000000000000000000000000000000000000000;hp=f5a55553cf46f9721400ad691ccf665b8b433e9c;hb=79f5ba9bf7656972dd988508eff9465562dde42c;hpb=16ef90a2415aa3b65341fdb6517cf58721bfff7a diff --git a/resources/traffic_scripts/send_ip_check_headers.py b/resources/traffic_scripts/send_ip_check_headers.py deleted file mode 100755 index f5a55553cf..0000000000 --- a/resources/traffic_scripts/send_ip_check_headers.py +++ /dev/null @@ -1,164 +0,0 @@ -#!/usr/bin/env python3 - -# Copyright (c) 2019 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 IPv4/IPv6 packet from one interface -to the other. Source and destination IP addresses and source and destination -MAC addresses are checked in received packet. -""" - -import sys - -import ipaddress - -from robot.api import logger -from scapy.layers.inet import IP -from scapy.layers.inet6 import IPv6, ICMPv6ND_NS -from scapy.layers.l2 import Ether, Dot1Q -from scapy.packet import Raw - -from resources.libraries.python.PacketVerifier import RxQueue, TxQueue -from resources.libraries.python.TrafficScriptArg import TrafficScriptArg - - -def valid_ipv4(ip): - try: - ipaddress.IPv4Address(ip) - return True - except (AttributeError, ipaddress.AddressValueError): - return False - - -def valid_ipv6(ip): - try: - ipaddress.IPv6Address(ip) - return True - except (AttributeError, ipaddress.AddressValueError): - return False - - -def main(): - """Send IP/IPv6 packet from one traffic generator interface to the other.""" - args = TrafficScriptArg( - [ - u"tg_src_mac", u"tg_dst_mac", u"src_ip", u"dst_ip", u"dut_if1_mac", - u"dut_if2_mac" - ], - [ - u"encaps_tx", u"vlan_tx", u"vlan_outer_tx", u"encaps_rx", - u"vlan_rx", u"vlan_outer_rx" - ] - ) - - tx_src_mac = args.get_arg(u"tg_src_mac") - tx_dst_mac = args.get_arg(u"dut_if1_mac") - rx_dst_mac = args.get_arg(u"tg_dst_mac") - rx_src_mac = args.get_arg(u"dut_if2_mac") - src_ip = args.get_arg(u"src_ip") - dst_ip = args.get_arg(u"dst_ip") - tx_if = args.get_arg(u"tx_if") - rx_if = args.get_arg(u"rx_if") - - encaps_tx = args.get_arg(u"encaps_tx") - vlan_tx = args.get_arg(u"vlan_tx") - vlan_outer_tx = args.get_arg(u"vlan_outer_tx") - encaps_rx = args.get_arg(u"encaps_rx") - vlan_rx = args.get_arg(u"vlan_rx") - vlan_outer_rx = args.get_arg(u"vlan_outer_rx") - - rxq = RxQueue(rx_if) - txq = TxQueue(tx_if) - - sent_packets =list() - pkt_raw = Ether(src=tx_src_mac, dst=tx_dst_mac) - - if encaps_tx == u"Dot1q": - pkt_raw /= Dot1Q(vlan=int(vlan_tx)) - elif encaps_tx == u"Dot1ad": - pkt_raw.type = 0x88a8 - pkt_raw /= Dot1Q(vlan=vlan_outer_tx) - pkt_raw /= Dot1Q(vlan=vlan_tx) - - if valid_ipv4(src_ip) and valid_ipv4(dst_ip): - pkt_raw /= IP(src=src_ip, dst=dst_ip, proto=61) - ip_format = IP - elif valid_ipv6(src_ip) and valid_ipv6(dst_ip): - pkt_raw /= IPv6(src=src_ip, dst=dst_ip) - ip_format = IPv6 - else: - raise ValueError(u"IP not in correct format") - - pkt_raw /= Raw() - sent_packets.append(pkt_raw) - txq.send(pkt_raw) - - while True: - if tx_if == rx_if: - ether = rxq.recv(2, ignore=sent_packets) - else: - ether = rxq.recv(2) - - if ether is None: - raise RuntimeError(u"IP packet Rx timeout") - - if ether.haslayer(ICMPv6ND_NS): - # read another packet in the queue if the current one is ICMPv6ND_NS - continue - else: - # otherwise process the current packet - break - - if rx_dst_mac == ether[Ether].dst and rx_src_mac == ether[Ether].src: - logger.trace(u"MAC matched") - else: - raise RuntimeError(f"Matching packet unsuccessful: {ether!r}") - - if encaps_rx == u"Dot1q": - if ether[Dot1Q].vlan == int(vlan_rx): - logger.trace(u"VLAN matched") - else: - raise RuntimeError( - f"Ethernet frame with wrong VLAN tag " - f"({ether[Dot1Q].vlan}-received, " - f"{vlan_rx}-expected):\n{ether!r}" - ) - ip = ether[Dot1Q].payload - elif encaps_rx == u"Dot1ad": - raise NotImplementedError() - else: - ip = ether.payload - - if not isinstance(ip, ip_format): - raise RuntimeError(f"Not an IP packet received {ip!r}") - - # Compare data from packets - if src_ip == ip.src: - logger.trace(u"Src IP matched") - else: - raise RuntimeError( - f"Matching Src IP unsuccessful: {src_ip} != {ip.src}" - ) - - if dst_ip == ip.dst: - logger.trace(u"Dst IP matched") - else: - raise RuntimeError( - f"Matching Dst IP unsuccessful: {dst_ip} != {ip.dst}" - ) - - sys.exit(0) - - -if __name__ == u"__main__": - main()