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authorJan Gelety <jgelety@cisco.com>2019-11-12 05:27:43 +0100
committerJan Gelety <jgelety@cisco.com>2019-11-28 18:26:21 +0100
commitd68951ac245150eeefa6e0f4156e4c1b5c9e9325 (patch)
tree487554a7547218d27f0a61ec02b70502c32cdcb4 /resources/traffic_scripts/send_rs_check_ra.py
parented0258a440cfad7023d643f717ab78ac568dc59b (diff)
Python3: resources and libraries
Change-Id: I1392c06b1d64f62b141d24c0d42a8e36913b15e2 Signed-off-by: Jan Gelety <jgelety@cisco.com>
Diffstat (limited to 'resources/traffic_scripts/send_rs_check_ra.py')
-rwxr-xr-xresources/traffic_scripts/send_rs_check_ra.py127
1 files changed, 0 insertions, 127 deletions
diff --git a/resources/traffic_scripts/send_rs_check_ra.py b/resources/traffic_scripts/send_rs_check_ra.py
deleted file mode 100755
index c9ff46528a..0000000000
--- 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()