X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=resources%2Ftraffic_scripts%2Fsend_vxlangpe_nsh_for_sff_test.py;fp=resources%2Ftraffic_scripts%2Fsend_vxlangpe_nsh_for_sff_test.py;h=b82e2a893876d426725041bd06afed1db505c9b2;hb=5ce772f3b2d83c31eda5c2abdcd6cc4547ecc6c8;hp=0000000000000000000000000000000000000000;hpb=1e59ee6e39f0604be721ac8ebdb36be14b738bd8;p=csit.git diff --git a/resources/traffic_scripts/send_vxlangpe_nsh_for_sff_test.py b/resources/traffic_scripts/send_vxlangpe_nsh_for_sff_test.py new file mode 100755 index 0000000000..b82e2a8938 --- /dev/null +++ b/resources/traffic_scripts/send_vxlangpe_nsh_for_sff_test.py @@ -0,0 +1,96 @@ +#!/usr/bin/env python +# Copyright (c) 2017 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 VxLAN-GPE+NSH packet +from TG to DUT. +""" +import sys +import time + +from scapy.layers.inet import IP, UDP, TCP +from scapy.layers.inet6 import IPv6 +from scapy.all import Ether, Packet, Raw +from scapy.all import sendp + +from resources.libraries.python.SFC.VerifyPacket import * +from resources.libraries.python.SFC.SFCConstants import SFCConstants as sfccon +from resources.libraries.python.TrafficScriptArg import TrafficScriptArg + +from robot.api import logger + +def main(): + """Send VxLAN-GPE+NSH packet from TG to DUT. + + :raises: If the IP address is invalid. + """ + args = TrafficScriptArg( + ['src_mac', 'dst_mac', 'src_ip', 'dst_ip', + 'timeout', 'framesize', 'testtype']) + + src_mac = args.get_arg('src_mac') + dst_mac = args.get_arg('dst_mac') + src_ip = args.get_arg('src_ip') + dst_ip = args.get_arg('dst_ip') + tx_if = args.get_arg('tx_if') + rx_if = args.get_arg('rx_if') + timeout = int(args.get_arg('timeout')) + frame_size = int(args.get_arg('framesize')) + test_type = args.get_arg('testtype') + + protocol = TCP + source_port = sfccon.DEF_SRC_PORT + destination_port = sfccon.DEF_DST_PORT + + ip_version = None + if valid_ipv4(src_ip) and valid_ipv4(dst_ip): + ip_version = IP + elif valid_ipv6(src_ip) and valid_ipv6(dst_ip): + ip_version = IPv6 + else: + raise ValueError("Invalid IP version!") + + innerpkt = (Ether(src=src_mac, dst=dst_mac) / + ip_version(src=src_ip, dst=dst_ip) / + protocol(sport=int(source_port), dport=int(destination_port))) + + vxlangpe_nsh = '\x0c\x00\x00\x04\x00\x00\x0a\x00\x00\x06' \ + '\x01\x03\x00\x00\xb9\xff\xC0\xA8\x32\x4B' \ + '\x00\x00\x00\x09\xC0\xA8\x32\x48\x03\x00\x12\xB5' + + raw_data = vxlangpe_nsh + str(innerpkt) + + pkt_header = (Ether(src=src_mac, dst=dst_mac) / + ip_version(src=src_ip, dst=dst_ip) / + UDP(sport=int(source_port), dport=4790) / + Raw(load=raw_data)) + + fsize_no_fcs = frame_size - 4 + pad_len = max(0, fsize_no_fcs - len(pkt_header)) + pad_data = "A" * pad_len + + pkt_raw = pkt_header / Raw(load=pad_data) + + sendp(pkt_raw, iface=tx_if, count=3) + + time.sleep(timeout) + + # let us begin to check the sfc sff packet + VerifyPacket.check_the_nsh_sfc_packet(frame_size, test_type) + + # we check all the fields about the sfc sff, this test will pass + sys.exit(0) + + +if __name__ == "__main__": + main()