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-rwxr-xr-xresources/traffic_scripts/send_vxlan_check_vxlan.py106
1 files changed, 106 insertions, 0 deletions
diff --git a/resources/traffic_scripts/send_vxlan_check_vxlan.py b/resources/traffic_scripts/send_vxlan_check_vxlan.py
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+++ b/resources/traffic_scripts/send_vxlan_check_vxlan.py
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+#!/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 packet from one interface to
+the other one. Dot1q or Dot1ad tagging of the ethernet frame can be set.
+"""
+
+import sys
+
+import vxlan
+
+from scapy.layers.inet import IP, UDP, Raw
+from scapy.layers.l2 import Ether
+from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
+from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
+
+
+def main():
+ """Send IP ICMPv4/ICMPv6 packet from one traffic generator interface to
+ the other one. Dot1q or Dot1ad tagging of the ethernet frame can be set.
+ """
+ args = TrafficScriptArg(['tx_src_mac', 'tx_dst_mac', 'tx_src_ip',
+ 'tx_dst_ip', 'tx_vni', 'rx_src_ip', 'rx_dst_ip',
+ 'rx_vni'])
+
+ tx_if = args.get_arg('tx_if')
+ rx_if = args.get_arg('rx_if')
+ tx_src_mac = args.get_arg('tx_src_mac')
+ tx_dst_mac = args.get_arg('tx_dst_mac')
+ tx_src_ip = args.get_arg('tx_src_ip')
+ tx_dst_ip = args.get_arg('tx_dst_ip')
+ tx_vni = args.get_arg('tx_vni')
+ rx_src_ip = args.get_arg('rx_src_ip')
+ rx_dst_ip = args.get_arg('rx_dst_ip')
+ rx_vni = args.get_arg('rx_vni')
+
+ rxq = RxQueue(rx_if)
+ txq = TxQueue(tx_if)
+
+ sent_packets = []
+
+ tx_pkt_p = (Ether(src='02:00:00:00:00:01', dst='02:00:00:00:00:02') /
+ IP(src='192.168.1.1', dst='192.168.1.2') /
+ UDP(sport=12345, dport=1234) /
+ Raw('rew data'))
+
+ pkt_raw = (Ether(src=tx_src_mac, dst=tx_dst_mac) /
+ IP(src=tx_src_ip, dst=tx_dst_ip) /
+ UDP(sport=23456) /
+ vxlan.VXLAN(vni=int(tx_vni)) /
+ tx_pkt_p)
+
+ # Send created packet on one interface and receive on the other
+ sent_packets.append(pkt_raw)
+ txq.send(pkt_raw)
+
+ ether = rxq.recv(2, ignore=sent_packets)
+
+ # Check whether received packet contains layers Ether, IP and VXLAN
+ if ether is None:
+ raise RuntimeError('Packet Rx timeout')
+ ip = ether.payload
+
+ if ip.src != rx_src_ip:
+ raise RuntimeError('IP src mismatch {} != {}'.format(ip.src, rx_src_ip))
+ if ip.dst != rx_dst_ip:
+ raise RuntimeError('IP dst mismatch {} != {}'.format(ip.dst, rx_dst_ip))
+ if ip.payload.dport != 4789:
+ raise RuntimeError('VXLAN UDP port mismatch {} != {}'.
+ format(ip.payload.dport, 4789))
+ vxlan_pkt = ip.payload.payload
+
+ if int(vxlan_pkt.vni) != int(rx_vni):
+ raise RuntimeError('vxlan mismatch')
+ rx_pkt_p = vxlan_pkt.payload
+
+ if rx_pkt_p.src != tx_pkt_p.src:
+ raise RuntimeError('RX encapsulated MAC src mismatch {} != {}'.
+ format(rx_pkt_p.src, tx_pkt_p.src))
+ if rx_pkt_p.dst != tx_pkt_p.dst:
+ raise RuntimeError('RX encapsulated MAC dst mismatch {} != {}'.
+ format(rx_pkt_p.dst, tx_pkt_p.dst))
+ if rx_pkt_p['IP'].src != tx_pkt_p['IP'].src:
+ raise RuntimeError('RX encapsulated IP src mismatch {} != {}'.
+ format(rx_pkt_p['IP'].src, tx_pkt_p['IP'].src))
+ if rx_pkt_p['IP'].dst != tx_pkt_p['IP'].dst:
+ raise RuntimeError('RX encapsulated IP dst mismatch {} != {}'.
+ format(rx_pkt_p['IP'].dst, tx_pkt_p['IP'].dst))
+
+ # TODO: verify inner Ether()
+
+ sys.exit(0)
+
+if __name__ == "__main__":
+ main()