<filename>resources/traffic_scripts/send_ipv4_udp_check_map_t.py
#!/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 a UDP datagram and checks if IPv4 addresses
are correctly translate to IPv6 addresses."""

import sys

from scapy.layers.l2 import Ether
from scapy.layers.inet import IP, UDP
from ipaddress import ip_address

from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
from resources.libraries.python.TrafficScriptArg import TrafficScriptArg


def _check_udp_checksum(pkt):
    """Check UDP checksum in IP packet. Return True if checksum is correct
    else False."""
    new = pkt.__class__(str(pkt))
    del new['UDP'].chksum
    new = new.__class__(str(new))
    return new['UDP'].chksum == pkt['UDP'].chksum


def _is_udp_in_ipv6(pkt):
    """If IPv6 next header type in the given pkt is UDP, return True,
    else return False. False is returned also if exception occurs."""
    ipv6_type = int('0x86dd', 16)  # IPv6
    try:
        if pkt.type == ipv6_type:
            if pkt.payload.nh == 17:  # UDP
                return True
    except AttributeError:
        return False
    return False


def main():  # pylint: disable=too-many-statements, too-many-locals
    """Main function of the script file."""
    args = TrafficScriptArg(['tx_dst_mac', 'tx_src_ipv4', 'tx_dst_ipv4',
                             'tx_dst_udp_port', 'rx_dst_mac', 'rx_src_mac',
                             'rx_src_ipv6', 'rx_dst_ipv6'])
    rx_if = args.get_arg('rx_if')
    tx_if = args.get_arg('tx_if')
    tx_dst_mac = args.get_arg('tx_dst_mac')
    tx_src_ipv4 = args.get_arg('tx_src_ipv4')
    tx_dst_ipv4 = args.get_arg('tx_dst_ipv4')
    tx_dst_udp_port = int(args.get_arg('tx_dst_udp_port'))
    tx_src_udp_port = 20000
    rx_dst_mac = args.get_arg('rx_dst_mac')
    rx_src_mac = args.get_arg('rx_src_mac')
    rx_src_ipv6 = args.get_arg('rx_src_ipv6')
    rx_dst_ipv6 = args.get_arg('rx_dst_ipv6')

    rxq = RxQueue(rx_if)
    txq = TxQueue(tx_if)
    sent_packets = []

    # Create empty UDP datagram
    udp = (Ether(dst=tx_dst_mac) /
           IP(src=tx_src_ipv4, dst=tx_dst_ipv4) /
           UDP(sport=tx_src_udp_port, dport=tx_dst_udp_port) /
           'udp_payload')

    txq.send(udp)
    sent_packets.append(udp)

    for _ in range(5):
        pkt = rxq.recv(2)
        if _is_udp_in_ipv6(pkt):
            ether = pkt
            break
    else:
        raise RuntimeError("UDP in IPv6 Rx error.")

    # check ethernet
    if ether.dst != rx_dst_mac:
        raise RuntimeError("Destination MAC error {} != {}.".
                           format(ether.dst, rx_dst_mac))
    print "Destination MAC: OK."

    if ether.src != rx_src_mac:
        raise RuntimeError("Source MAC error {} != {}.".
                           format(ether.src, rx_src_mac))
    print "Source MAC: OK."

    ipv6 = ether.payload

    # check ipv6
    if ip_address(unicode(ipv6.dst)) != ip_address(unicode(rx_dst_ipv6)):
        raise RuntimeError("Destination IP error {} != {}.".
                           format(ipv6.dst, rx_dst_ipv6))
    print "Destination IPv6: OK."

    if ip_address(unicode(ipv6.src)) != ip_address(unicode(rx_src_ipv6)):
        raise RuntimeError("Source IP error {} != {}.".
                           format(ipv6.src, rx_src_ipv6))
    print "Source IPv6: OK."

    udp = ipv6.payload

    # check udp
    if udp.dport != tx_dst_udp_port:
        raise RuntimeError("UDP dport error {} != {}.".
                           format(udp.dport, tx_dst_udp_port))
    print "UDP dport: OK."

    if udp.sport != tx_src_udp_port:
        raise RuntimeError("UDP sport error {} != {}.".
                           format(udp.sport, tx_src_udp_port))
    print "UDP sport: OK."

    if not _check_udp_checksum(ipv6):
        raise RuntimeError("UDP checksum error.")
    print "UDP checksum OK."

    sys.exit(0)

if __name__ == "__main__":
    main()

<filename>resources/traffic_scripts/send_ipv4_udp_check_map_t.py
#!/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 a UDP datagram and checks if IPv4 addresses
are correctly translate to IPv6 addresses."""

import sys

from scapy.layers.l2 import Ether
from scapy.layers.inet import IP, UDP
from ipaddress import ip_address

from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
from resources.libraries.python.TrafficScriptArg import TrafficScriptArg


def _check_udp_checksum(pkt):
    """Check UDP checksum in IP packet. Return True if checksum is correct
    else False."""
    new = pkt.__class__(str(pkt))
    del new['UDP'].chksum
    new = new.__class__(str(new))
    return new['UDP'].chksum == pkt['UDP'].chksum


def _is_udp_in_ipv6(pkt):
    """If IPv6 next header type in the given pkt is UDP, return True,
    else return False. False is returned also if exception occurs."""
    ipv6_type = int('0x86dd', 16)  # IPv6
    try:
        if pkt.type == ipv6_type:
            if pkt.payload.nh == 17:  # UDP
                return True
    except AttributeError:
        return False
    return False


def main():  # pylint: disable=too-many-statements, too-many-locals
    """Main function of the script file."""
    args = TrafficScriptArg(['tx_dst_mac', 'tx_src_ipv4', 'tx_dst_ipv4',
                             'tx_dst_udp_port', 'rx_dst_mac', 'rx_src_mac',
                             'rx_src_ipv6', 'rx_dst_ipv6'])
    rx_if = args.get_arg('rx_if')
    tx_if = args.get_arg('tx_if')
    tx_dst_mac = args.get_arg('tx_dst_mac')
    tx_src_ipv4 = args.get_arg('tx_src_ipv4')
    tx_dst_ipv4 = args.get_arg('tx_dst_ipv4')
    tx_dst_udp_port = int(args.get_arg('tx_dst_udp_port'))
    tx_src_udp_port = 20000
    rx_dst_mac = args.get_arg('rx_dst_mac')
    rx_src_mac = args.get_arg('rx_src_mac')
    rx_src_ipv6 = args.get_arg('rx_src_ipv6')
    rx_dst_ipv6 = args.get_arg('rx_dst_ipv6')

    rxq = RxQueue(rx_if)
    txq = TxQueue(tx_if)
    sent_packets = []

    # Create empty UDP datagram
    udp = (Ether(dst=tx_dst_mac) /
           IP(src=tx_src_ipv4, dst=tx_dst_ipv4) /
           UDP(sport=tx_src_udp_port, dport=tx_dst_udp_port) /
           'udp_payload')

    txq.send(udp)
    sent_packets.append(udp)

    for _ in range(5):
        pkt = rxq.recv(2)
        if _is_udp_in_ipv6(pkt):
            ether = pkt
            break
    else:
        raise RuntimeError("UDP in IPv6 Rx error.")

    # check ethernet
    if ether.dst != rx_dst_mac:
        raise RuntimeError("Destination MAC error {} != {}.".
                           format(ether.dst, rx_dst_mac))
    print "Destination MAC: OK."

    if ether.src != rx_src_mac:
        raise RuntimeError("Source MAC error {} != {}.".
                           format(ether.src, rx_src_mac))
    print "Source MAC: OK."

    ipv6 = ether.payload

    # check ipv6
    if ip_address(unicode(ipv6.dst)) != ip_address(unicode(rx_dst_ipv6)):
        raise RuntimeError("Destination IP error {} != {}.".
                           format(ipv6.dst, rx_dst_ipv6))
    print "Destination IPv6: OK."

    if ip_address(unicode(ipv6.src)) != ip_address(unicode(rx_src_ipv6)):
        raise RuntimeError("Source IP error {} != {}.".
                           format(ipv6.src, rx_src_ipv6))
    print "Source IPv6: OK."

    udp = ipv6.payload

    # check udp
    if udp.dport != tx_dst_udp_port:
        raise RuntimeError("UDP dport error {} != {}.".
                           format(udp.dport, tx_dst_udp_port))
    print "UDP dport: OK."

    if udp.sport != tx_src_udp_port:
        raise RuntimeError("UDP sport error {} != {}.".
                           format(udp.sport, tx_src_udp_port))
    print "UDP sport: OK."

    if not _check_udp_checksum(ipv6):
        raise RuntimeError("UDP checksum error.")
    print "UDP checksum OK."

    sys.exit(0)

if __name__ == "__main__":
    main()

#!/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 a UDP datagram and checks if IPv4 addresses are correctly translate to IPv6 addresses. Check UDP checksum in IP packet. Return True if checksum is correct     else False. If IPv6 next header type in the given pkt is UDP, return True,     else return False. False is returned also if exception occurs. # IPv6 # UDP # pylint: disable=too-many-statements, too-many-locals Main function of the script file. # Create empty UDP datagram # check ethernet # check ipv6 # check udp