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Diffstat (limited to 'resources/traffic_scripts/dhcp/send_and_check_proxy_messages.py')
| -rwxr-xr-x | resources/traffic_scripts/dhcp/send_and_check_proxy_messages.py | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/resources/traffic_scripts/dhcp/send_and_check_proxy_messages.py b/resources/traffic_scripts/dhcp/send_and_check_proxy_messages.py deleted file mode 100755 index 27f148c900..0000000000 --- a/resources/traffic_scripts/dhcp/send_and_check_proxy_messages.py +++ /dev/null @@ -1,299 +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. - -"""Traffic script that sends DHCP packets.""" - -import sys - -from scapy.all import Ether -from scapy.layers.inet import IP, UDP -from scapy.layers.inet import UDP_SERVICES -from scapy.layers.dhcp import DHCP, BOOTP - -from resources.libraries.python.PacketVerifier import RxQueue, TxQueue -from resources.libraries.python.TrafficScriptArg import TrafficScriptArg - - -def dhcp_discover(tx_if, rx_if, tx_src_ip, tx_dst_ip, server_ip, proxy_ip, - client_mac): - """Send and check DHCP DISCOVER proxy packet.""" - - rxq = RxQueue(rx_if) - txq = TxQueue(tx_if) - - sent_packets = [] - - dhcp_discover = Ether(src=client_mac, dst="ff:ff:ff:ff:ff:ff") / \ - IP(src=tx_src_ip, dst=tx_dst_ip) / \ - UDP(sport=UDP_SERVICES.bootpc, dport=UDP_SERVICES.bootps) / \ - BOOTP(op=1,) / \ - DHCP(options=[("message-type", "discover"), - "end"]) - - sent_packets.append(dhcp_discover) - txq.send(dhcp_discover) - - ether = rxq.recv(2) - - if ether is None: - raise RuntimeError('DHCP DISCOVER timeout') - - if ether[IP].src != proxy_ip: - raise RuntimeError("Source IP address error.") - print "Source IP address: OK." - - if ether[IP].dst != server_ip: - raise RuntimeError("Destination IP address error.") - print "Destination IP address: OK." - - if ether[UDP].dport != UDP_SERVICES.bootps: - raise RuntimeError("UDP destination port error.") - print "UDP destination port: OK." - - if ether[UDP].sport != UDP_SERVICES.bootpc: - raise RuntimeError("UDP source port error.") - print "UDP source port: OK." - - if ether[DHCP].options[1][0] != 'relay_agent_Information': # option 82 - raise RuntimeError("Relay agent information error.") - option_82 = ether[DHCP].options[1][1] - - if ether[DHCP].options[0][1] != 1: # 1 - DISCOVER message - raise RuntimeError("DHCP DISCOVER message error.") - print "DHCP DISCOVER message OK." - - return option_82 - - -def dhcp_offer(rx_if, tx_if, tx_dst_ip, server_ip, proxy_ip, client_ip, - server_mac, option_82): - """Send and check DHCP OFFER proxy packet.""" - - rxq = RxQueue(rx_if) - txq = TxQueue(tx_if) - - sent_packets = [] - - dhcp_offer = Ether(src=server_mac, dst="ff:ff:ff:ff:ff:ff") / \ - IP(src=server_ip, dst=tx_dst_ip) / \ - UDP(sport=UDP_SERVICES.bootps, dport=UDP_SERVICES.bootpc) / \ - BOOTP(op=2, - yiaddr=client_ip, - siaddr=server_ip) / \ - DHCP(options= - [("message-type", "offer"), - ("server_id", server_ip), - ("relay_agent_Information", option_82), - "end"]) - - txq.send(dhcp_offer) - sent_packets.append(dhcp_offer) - - ether = rxq.recv(2) - - if ether is None: - raise RuntimeError('DHCP OFFER timeout') - - if ether[IP].dst != tx_dst_ip: - raise RuntimeError("Destination IP address error.") - print "Destination IP address: OK." - - if ether[IP].src != proxy_ip: - raise RuntimeError("Source IP address error.") - print "Source IP address: OK." - - if ether[UDP].dport != UDP_SERVICES.bootpc: - raise RuntimeError("UDP destination port error.") - print "UDP destination port: OK." - - if ether[UDP].sport != UDP_SERVICES.bootps: - raise RuntimeError("UDP source port error.") - print "UDP source port: OK." - - if ether[BOOTP].yiaddr != client_ip: - raise RuntimeError("Client IP address error.") - print "Client IP address: OK." - - if ether[BOOTP].siaddr != server_ip: - raise RuntimeError("DHCP server IP address error.") - print "DHCP server IP address: OK." - - if ether[DHCP].options[0][1] != 2: # 2 - OFFER message - raise RuntimeError("DHCP OFFER message error.") - print "DHCP OFFER message OK." - - -def dhcp_request(tx_if, rx_if, tx_src_ip, tx_dst_ip, server_ip, proxy_ip, - client_ip, client_mac): - """Send and check DHCP REQUEST proxy packet.""" - - rxq = RxQueue(rx_if) - txq = TxQueue(tx_if) - - sent_packets = [] - - dhcp_request = Ether(src=client_mac, dst="ff:ff:ff:ff:ff:ff") / \ - IP(src=tx_src_ip, dst=tx_dst_ip) / \ - UDP(sport=UDP_SERVICES.bootpc, dport=UDP_SERVICES.bootps) / \ - BOOTP(op=1, - giaddr=proxy_ip, - siaddr=server_ip) / \ - DHCP(options=[("message-type", "request"), - ("server_id", server_ip), - ("requested_addr", client_ip), - "end"]) - - sent_packets.append(dhcp_request) - txq.send(dhcp_request) - - ether = rxq.recv(2) - - if ether is None: - raise RuntimeError('DHCP REQUEST timeout') - - if ether[IP].dst != server_ip: - raise RuntimeError("Destination IP address error.") - print "Destination IP address: OK." - - if ether[IP].src != proxy_ip: - raise RuntimeError("Source IP address error.") - print "Source IP address: OK." - - if ether[UDP].dport != UDP_SERVICES.bootps: - raise RuntimeError("UDP destination port error.") - print "UDP destination port: OK." - - if ether[UDP].sport != UDP_SERVICES.bootpc: - raise RuntimeError("UDP source port error.") - print "UDP source port: OK." - - if ether[BOOTP].siaddr != server_ip: - raise RuntimeError("DHCP server IP address error.") - print "DHCP server IP address: OK." - - if ether[DHCP].options[2][1] != client_ip: - raise RuntimeError("Requested IP address error.") - print "Requested IP address: OK." - - if ether[DHCP].options[3][0] != 'relay_agent_Information': # option 82 - raise RuntimeError("Relay agent information error.") - - if ether[DHCP].options[0][1] != 3: # 2 - REQUEST message - raise RuntimeError("DHCP REQUEST message error.") - print "DHCP REQUEST message: OK." - - -def dhcp_ack(rx_if, tx_if, tx_dst_ip, server_ip, proxy_ip, client_ip, - server_mac, option_82): - """Send and check DHCP ACK proxy packet.""" - - rxq = RxQueue(rx_if) - txq = TxQueue(tx_if) - - lease_time = 43200 # 12 hours - - sent_packets = [] - - dhcp_ack = Ether(src=server_mac, dst="ff:ff:ff:ff:ff:ff") / \ - IP(src=server_ip, dst=tx_dst_ip) / \ - UDP(sport=UDP_SERVICES.bootps, dport=UDP_SERVICES.bootpc) / \ - BOOTP(op=2, - yiaddr=client_ip, - siaddr=server_ip) / \ - DHCP(options= - [("message-type", "ack"), - ("server_id", server_ip), - ("lease_time", lease_time), - ("relay_agent_Information", option_82), - "end"]) - - txq.send(dhcp_ack) - sent_packets.append(dhcp_ack) - - ether = rxq.recv(2) - - if ether is None: - raise RuntimeError('DHCP ACK timeout') - - if ether[IP].dst != tx_dst_ip: - raise RuntimeError("Destination IP address error.") - print "Destination IP address: OK." - - if ether[IP].src != proxy_ip: - raise RuntimeError("Source IP address error.") - print "Source IP address: OK." - - if ether[UDP].dport != UDP_SERVICES.bootpc: - raise RuntimeError("UDP destination port error.") - print "UDP destination port: OK." - - if ether[UDP].sport != UDP_SERVICES.bootps: - raise RuntimeError("UDP source port error.") - print "UDP source port: OK." - - if ether[BOOTP].yiaddr != client_ip: - raise RuntimeError("Client IP address error.") - print "Client IP address: OK." - - if ether[BOOTP].siaddr != server_ip: - raise RuntimeError("DHCP server IP address error.") - print "DHCP server IP address: OK." - - if ether[DHCP].options[2][1] != lease_time: - raise RuntimeError("DHCP lease time error.") - print "DHCP lease time OK." - - if ether[DHCP].options[0][1] != 5: # 5 - ACK message - raise RuntimeError("DHCP ACK message error.") - print "DHCP ACK message OK." - - -def main(): - """Send DHCP proxy messages.""" - - args = TrafficScriptArg(['server_ip', 'server_mac', 'client_ip', - 'client_mac', 'proxy_ip']) - - tx_if = args.get_arg('tx_if') - rx_if = args.get_arg('rx_if') - - tx_src_ip = "0.0.0.0" - tx_dst_ip = "255.255.255.255" - - server_ip = args.get_arg('server_ip') - client_ip = args.get_arg('client_ip') - proxy_ip = args.get_arg('proxy_ip') - client_mac = args.get_arg('client_mac') - server_mac = args.get_arg('server_mac') - - # DHCP DISCOVER - option_82 = dhcp_discover(tx_if, rx_if, tx_src_ip, tx_dst_ip, server_ip, - proxy_ip, client_mac) - - # DHCP OFFER - dhcp_offer(tx_if, rx_if, tx_dst_ip, server_ip, proxy_ip, client_ip, - server_mac, option_82) - - # DHCP REQUEST - dhcp_request(tx_if, rx_if, tx_src_ip, tx_dst_ip, server_ip, proxy_ip, - client_ip, client_mac) - - # DHCP ACK - dhcp_ack(tx_if, rx_if, tx_dst_ip, server_ip, proxy_ip, client_ip, - server_mac, option_82) - - sys.exit(0) - -if __name__ == "__main__": - main() |