1 files changed, 107 insertions, 0 deletions
diff --git a/resources/traffic_scripts/send_icmp_check_headers.py b/resources/traffic_scripts/send_icmp_check_headers.py
new file mode 100755
index 0000000000..f8f5309764
--- /dev/null
+++ b/resources/traffic_scripts/send_icmp_check_headers.py
@@ -0,0 +1,107 @@
+#!/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 icmp packet
+from one interface to the other.
+"""
+
+import sys
+import ipaddress
+
+from scapy.layers.inet import ICMP, IP
+from scapy.layers.inet6 import IPv6
+from scapy.all import Ether
+from scapy.layers.inet6 import ICMPv6EchoRequest
+from robot.api import logger
+
+from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
+from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
+
+
+def valid_ipv4(ip):
+    try:
+        ipaddress.IPv4Address(unicode(ip))
+        return True
+    except (AttributeError, ipaddress.AddressValueError):
+        return False
+
+
+def valid_ipv6(ip):
+    try:
+        ipaddress.IPv6Address(unicode(ip))
+        return True
+    except (AttributeError, ipaddress.AddressValueError):
+        return False
+
+
+def main():
+    """Send IP ICMP packet from one traffic generator interface to the other."""
+    args = TrafficScriptArg(
+        ['tg_src_mac', 'tg_dst_mac', 'src_ip', 'dst_ip', 'dut_if1_mac',
+         'dut_if2_mac'])
+
+    src_mac = args.get_arg('tg_src_mac')
+    dst_mac = args.get_arg('tg_dst_mac')
+    dut1_if1_mac = args.get_arg('dut_if1_mac')
+    dut1_if2_mac = args.get_arg('dut_if2_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')
+
+    rxq = RxQueue(rx_if)
+    txq = TxQueue(tx_if)
+    sent_packets = []
+    ip_format = ''
+    pkt_raw = ''
+    if valid_ipv4(src_ip) and valid_ipv4(dst_ip):
+        pkt_raw = (Ether(src=src_mac, dst=dut1_if1_mac) /
+                   IP(src=src_ip, dst=dst_ip) /
+                   ICMP())
+        ip_format = 'IP'
+    elif valid_ipv6(src_ip) and valid_ipv6(dst_ip):
+        pkt_raw = (Ether(src=src_mac, dst=dut1_if1_mac) /
+                   IPv6(src=src_ip, dst=dst_ip) /
+                   ICMPv6EchoRequest())
+        ip_format = 'IPv6'
+    else:
+        raise ValueError("IP not in correct format")
+
+    sent_packets.append(pkt_raw)
+    txq.send(pkt_raw)
+    ether = rxq.recv(2)
+
+    if ether is None:
+        raise RuntimeError("ICMP echo Rx timeout")
+    if not ether.haslayer(ip_format):
+        raise RuntimeError("Not an IP packet received {0}"
+                           .format(ether.__repr__()))
+
+    # Compare data from packets
+    if src_ip == ether[ip_format].src and dst_ip == ether[ip_format].dst:
+        logger.trace("IP matched")
+        if dst_mac == ether['Ethernet'].dst and \
+                dut1_if2_mac == ether['Ethernet'].src:
+            logger.trace("MAC matched")
+        else:
+            raise RuntimeError("Matching packet unsuccessful: {0}"
+                               .format(ether.__repr__()))
+    else:
+        raise RuntimeError("Matching packet unsuccessful: {0}"
+                           .format(ether.__repr__()))
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()