Python3: resources and libraries

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

diff --git a/resources/traffic_scripts/send_rs_check_ra.py b/resources/traffic_scripts/send_rs_check_ra.py
deleted file mode 100755 (executable)
index c9ff465..0000000
--- a/resources/traffic_scripts/send_rs_check_ra.py
+++ /dev/null
@@ -1,127 +0,0 @@
-#!/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.
-
-"""Router solicitation check script."""
-
-import sys
-import ipaddress
-
-from scapy.layers.l2 import Ether
-from scapy.layers.inet6 import IPv6, ICMPv6ND_RA, ICMPv6ND_RS, ICMPv6ND_NS
-
-from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
-from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
-
-
-def mac_to_ipv6_linklocal(mac):
-    """Transfer MAC address into specific link-local IPv6 address.
-
-    :param mac: MAC address to be transferred.
-    :type mac: str
-    :return: IPv6 link-local address.
-    :rtype: str
-    """
-    # Remove the most common delimiters: dots, dashes, etc.
-    mac_value = int(mac.translate(None, ' .:-'), 16)
-
-    # Split out the bytes that slot into the IPv6 address
-    # XOR the most significant byte with 0x02, inverting the
-    # Universal / Local bit
-    high2 = mac_value >> 32 & 0xffff ^ 0x0200
-    high1 = mac_value >> 24 & 0xff
-    low1 = mac_value >> 16 & 0xff
-    low2 = mac_value & 0xffff
-
-    return 'fe80::{:04x}:{:02x}ff:fe{:02x}:{:04x}'.format(
-        high2, high1, low1, low2)
-
-
-def main():
-    """Send Router Solicitation packet, check if the received response\
-     is a Router Advertisement packet and verify."""
-
-    args = TrafficScriptArg(
-        ['src_mac', 'dst_mac', 'src_ip']
-    )
-
-    router_mac = args.get_arg('dst_mac')
-    src_mac = args.get_arg('src_mac')
-    src_ip = args.get_arg('src_ip')
-    if not src_ip:
-        src_ip = mac_to_ipv6_linklocal(src_mac)
-    tx_if = args.get_arg('tx_if')
-
-    txq = TxQueue(tx_if)
-    rxq = RxQueue(tx_if)
-
-    pkt_raw = (Ether(src=src_mac, dst='33:33:00:00:00:02') /
-               IPv6(src=src_ip, dst='ff02::2') /
-               ICMPv6ND_RS())
-
-    sent_packets = [pkt_raw]
-    txq.send(pkt_raw)
-
-    while True:
-        ether = rxq.recv(2, sent_packets)
-        if ether is None:
-            raise RuntimeError('ICMP echo Rx timeout')
-
-        if ether.haslayer(ICMPv6ND_NS):
-            # read another packet in the queue if the current one is ICMPv6ND_NS
-            continue
-        else:
-            # otherwise process the current packet
-            break
-
-    # Check whether received packet contains layer RA and check other values
-    if ether.src != router_mac:
-        raise RuntimeError('Packet source MAC ({0}) does not match router MAC '
-                           '({1}).'.format(ether.src, router_mac))
-    if ether.dst != src_mac:
-        raise RuntimeError('Packet destination MAC ({0}) does not match RS '
-                           'source MAC ({1}).'.format(ether.dst, src_mac))
-
-    if not ether.haslayer(ICMPv6ND_RA):
-        raise RuntimeError('Not an RA packet received {0}'.
-                           format(ether.__repr__()))
-
-    src_address = ipaddress.IPv6Address(unicode(ether['IPv6'].src))
-    dst_address = ipaddress.IPv6Address(unicode(ether['IPv6'].dst))
-    router_link_local = ipaddress.IPv6Address(unicode(
-        mac_to_ipv6_linklocal(router_mac)))
-    rs_src_address = ipaddress.IPv6Address(unicode(src_ip))
-
-    if src_address != router_link_local:
-        raise RuntimeError('Packet source address ({0}) does not match link '
-                           'local address({1})'.
-                           format(src_address, router_link_local))
-
-    if dst_address != rs_src_address:
-        raise RuntimeError('Packet destination address ({0}) does not match '
-                           'RS source address ({1}).'.
-                           format(dst_address, rs_src_address))
-
-    if ether['IPv6'].hlim != 255:
-        raise RuntimeError('Hop limit not correct: {0}!=255'.
-                           format(ether['IPv6'].hlim))
-
-    ra_code = ether[ICMPv6ND_RA].code
-    if ra_code != 0:
-        raise RuntimeError('ICMP code: {0} not correct. '.format(ra_code))
-
-    sys.exit(0)
-
-
-if __name__ == "__main__":
-    main()