New version of RF tests.

[csit.git] / resources / traffic_scripts / ipv6_sweep_ping.py

diff --git a/resources/traffic_scripts/ipv6_sweep_ping.py b/resources/traffic_scripts/ipv6_sweep_ping.py
new file mode 100755 (executable)
index 0000000..2282f40
--- /dev/null
+++ b/resources/traffic_scripts/ipv6_sweep_ping.py
@@ -0,0 +1,110 @@
+#!/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 for IPv6 sweep ping."""
+
+import sys
+import logging
+import os
+logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
+from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
+from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
+from scapy.layers.inet6 import IPv6, ICMPv6ND_NA, ICMPv6NDOptDstLLAddr
+from scapy.layers.inet6 import ICMPv6EchoRequest, ICMPv6EchoReply
+from scapy.all import Ether
+
+
+def main():
+    # start_size - start size of the ICMPv6 echo data
+    # end_size - end size of the ICMPv6 echo data
+    # step - increment step
+    args = TrafficScriptArg(['src_mac', 'dst_mac', 'src_ip', 'dst_ip',
+                             'start_size', 'end_size', 'step'])
+
+    rxq = RxQueue(args.get_arg('rx_if'))
+    txq = TxQueue(args.get_arg('tx_if'))
+
+    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')
+    start_size = int(args.get_arg('start_size'))
+    end_size = int(args.get_arg('end_size'))
+    step = int(args.get_arg('step'))
+    echo_id = 0xa
+    # generate some random data buffer
+    data = bytearray(os.urandom(end_size))
+
+    # send ICMPv6 neighbor advertisement message
+    sent_packets = []
+    pkt_send = (Ether(src=src_mac, dst=dst_mac) /
+                      IPv6(src=src_ip, dst=dst_ip) /
+                      ICMPv6ND_NA(tgt=src_ip, R=0) /
+                      ICMPv6NDOptDstLLAddr(lladdr=src_mac))
+    sent_packets.append(pkt_send)
+    txq.send(pkt_send)
+
+    # send ICMPv6 echo request with incremented data length and receive ICMPv6
+    # echo reply
+    for echo_seq in range(start_size, end_size, step):
+        pkt_send = (Ether(src=src_mac, dst=dst_mac) /
+                          IPv6(src=src_ip, dst=dst_ip) /
+                          ICMPv6EchoRequest(id=echo_id, seq=echo_seq,
+                                            data=data[0:echo_seq]))
+        sent_packets.append(pkt_send)
+        txq.send(pkt_send)
+
+        ether = rxq.recv(ignore=sent_packets)
+        if ether is None:
+            rxq._proc.terminate()
+            raise RuntimeError(
+                'ICMPv6 echo reply seq {0} Rx timeout'.format(echo_seq))
+
+        if not ether.haslayer(IPv6):
+            rxq._proc.terminate()
+            raise RuntimeError(
+                'Unexpected packet with no IPv6 received {0}'.format(
+                    ether.__repr__()))
+
+        ipv6 = ether['IPv6']
+
+        if not ipv6.haslayer(ICMPv6EchoReply):
+            rxq._proc.terminate()
+            raise RuntimeError(
+                'Unexpected packet with no IPv6 ICMP received {0}'.format(
+                    ipv6.__repr__()))
+
+        icmpv6 = ipv6['ICMPv6 Echo Reply']
+
+        if icmpv6.id != echo_id or icmpv6.seq != echo_seq:
+            rxq._proc.terminate()
+            raise RuntimeError(
+                'Invalid ICMPv6 echo reply received ID {0} seq {1} should be ' +
+                'ID {2} seq {3}, {0}'.format(icmpv6.id, icmpv6.seq, echo_id,
+                                             echo_seq))
+
+        cksum = icmpv6.cksum
+        del icmpv6.cksum
+        tmp = ICMPv6EchoReply(str(icmpv6))
+        if tmp.cksum != cksum:
+            rxq._proc.terminate()
+            raise RuntimeError(
+                'Invalid checksum {0} should be {1}'.format(cksum, tmp.cksum))
+
+    rxq._proc.terminate()
+    sys.exit(0)
+
+if __name__ == "__main__":
+    main()