diff options
Diffstat (limited to 'resources')
| -rw-r--r-- | resources/libraries/python/Dhcp.py | 23 | ||||
| -rw-r--r-- | resources/libraries/python/TrafficScriptExecutor.py | 3 | ||||
| -rw-r--r-- | resources/libraries/robot/dhcp_client.robot | 99 | ||||
| -rw-r--r-- | resources/templates/vat/dhcp_proxy_config.vat | 1 | ||||
| -rwxr-xr-x | resources/traffic_scripts/dhcp/send_dhcp_discover.py | 74 | ||||
| -rwxr-xr-x | resources/traffic_scripts/dhcp/send_dhcp_messages.py | 307 |
6 files changed, 506 insertions, 1 deletions
diff --git a/resources/libraries/python/Dhcp.py b/resources/libraries/python/Dhcp.py index 8b78f457c0..ebdfeb3b80 100644 --- a/resources/libraries/python/Dhcp.py +++ b/resources/libraries/python/Dhcp.py @@ -46,3 +46,26 @@ class DhcpClient(object): raise RuntimeError('Unable to set DHCP client on node {} and' ' interface {}.' .format(vpp_node, interface)) + + @staticmethod + def dhcp_proxy_config(vpp_node, server_address, source_address): + """Set DHCP proxy. + + :param vpp_node: VPP node to set DHCP proxy. + :param server_address: DHCP server IP address. + :param source_address: DHCP proxy address. + :type vpp_node: dict + :type server_address: str + :type source_address: str + :raises RuntimeError: If unable to set DHCP proxy. + """ + + output = VatExecutor.cmd_from_template(vpp_node, + "dhcp_proxy_config.vat", + server_address=server_address, + source_address=source_address) + output = output[0] + + if output["retval"] != 0: + raise RuntimeError('Unable to set DHCP proxy on node {}' + .format(vpp_node)) diff --git a/resources/libraries/python/TrafficScriptExecutor.py b/resources/libraries/python/TrafficScriptExecutor.py index 8d899044fc..e5fb2589ef 100644 --- a/resources/libraries/python/TrafficScriptExecutor.py +++ b/resources/libraries/python/TrafficScriptExecutor.py @@ -50,6 +50,7 @@ class TrafficScriptExecutor(object): :type timeout: int :raises RuntimeError: ICMP echo Rx timeout. :raises RuntimeError: DHCP REQUEST Rx timeout. + :raises RuntimeError: DHCP DISCOVER timeout. :raises RuntimeError: TCP/UDP Rx timeout. :raises RuntimeError: ARP reply timeout. :raises RuntimeError: Traffic script execution failed. @@ -74,6 +75,8 @@ class TrafficScriptExecutor(object): raise RuntimeError("ICMP echo Rx timeout") elif "RuntimeError: DHCP REQUEST Rx timeout" in stderr: raise RuntimeError("DHCP REQUEST Rx timeout") + elif "RuntimeError('DHCP DISCOVER timeout')" in stderr: + raise RuntimeError("DHCP DISCOVER timeout") elif "RuntimeError: TCP/UDP Rx timeout" in stderr: raise RuntimeError("TCP/UDP Rx timeout") elif "Error occurred: ARP reply timeout" in stdout: diff --git a/resources/libraries/robot/dhcp_client.robot b/resources/libraries/robot/dhcp_client.robot index c3c4645d3d..c11e01c67a 100644 --- a/resources/libraries/robot/dhcp_client.robot +++ b/resources/libraries/robot/dhcp_client.robot @@ -137,5 +137,102 @@ | | ... | --server_mac | ${server_mac} | --server_ip | ${server_ip} | | ... | --client_ip | ${client_ip} | --client_mask | ${client_mask} | | ... | --lease_time | ${lease_time} -| | Run Traffic Script On Node | dhcp/check_dhcp_request_ack.py +| | Run Traffic Script On Node | dhcp/check_dhcp_request_ack.py +| | ... | ${tg_node} | ${args} + +| Send DHCP Messages +| | [Documentation] | Send and receive DHCP messages between client +| | ... | and server through DHCP proxy. +| | ... +| | ... | *Arguments:* +| | ... | - tg_node - TG node. Type: dictionary +| | ... | - tg_interface1 - TG interface. Type: string +| | ... | - tg_interface2 - TG interface. Type: string +| | ... | - server_ip - DHCP server IP address. Type: string +| | ... | - server_mac - DHCP server MAC address. Type: string +| | ... | - client_ip - Client IP address. Type: string +| | ... | - client_mac - Client MAC address. Type: string +| | ... | - proxy_ip - DHCP proxy IP address. Type: string +| | ... +| | ... | *Return:* +| | ... | - No value returned. +| | ... +| | ... | *Example:* +| | ... +| | ... | \| Send DHCP Messages \| ${nodes['TG']} \ +| | ... | \| eth3 \| eth4 \| 192.168.0.100 \| 08:00:27:cc:4f:54 \ +| | ... | \| 172.16.0.2 \| 08:00:27:64:18:d2 \| 172.16.0.1 \| +| | ... +| | [Arguments] | ${tg_node} | ${tg_interface1} | ${tg_interface2} +| | ... | ${server_ip} | ${server_mac} | ${client_ip} | ${client_mac} +| | ... | ${proxy_ip} | +| | ${tg_interface_name1}= | Get interface name | ${tg_node} | ${tg_interface1} +| | ${tg_interface_name2}= | Get interface name | ${tg_node} | ${tg_interface2} +| | ${args}= | Catenate | --tx_if | ${tg_interface_name1} +| | ... | --rx_if | ${tg_interface_name2} +| | ... | --server_ip | ${server_ip} +| | ... | --server_mac | ${server_mac} +| | ... | --client_ip | ${client_ip} +| | ... | --client_mac | ${client_mac} +| | ... | --proxy_ip | ${proxy_ip} +| | Run Traffic Script On Node | dhcp/send_dhcp_messages.py +| | ... | ${tg_node} | ${args} + +| Send DHCP DISCOVER +| | [Documentation] | Send and receive DHCP DISCOVER. +| | ... +| | ... | *Arguments:* +| | ... | - tg_node - TG node. Type: dictionary +| | ... | - tg_interface1 - TG interface. Type: string +| | ... | - tg_interface2 - TG interface. Type: string +| | ... | - tx_src_ip - Source address of DHCP DISCOVER packet. Type: string +| | ... | - tx_dst_ip - Destination address of DHCP DISCOVER packet. Type: string +| | ... +| | ... | *Return:* +| | ... | - No value returned. +| | ... +| | ... | *Example:* +| | ... +| | ... | \| Send DHCP DISCOVER \| ${nodes['TG']} \ +| | ... | \| eth3 \| eth4 \| 0.0.0.0 \| 255.255.255.255 \| +| | ... +| | [Arguments] | ${tg_node} | ${tg_interface1} | ${tg_interface2} +| | ... | ${tx_src_ip} | ${tx_dst_ip} | +| | ${tg_interface_name1}= | Get interface name | ${tg_node} | ${tg_interface1} +| | ${tg_interface_name2}= | Get interface name | ${tg_node} | ${tg_interface2} +| | ${args}= | Catenate | --tx_if | ${tg_interface_name1} +| | ... | --rx_if | ${tg_interface_name2} +| | ... | --tx_src_ip | ${tx_src_ip} +| | ... | --tx_dst_ip | ${tx_dst_ip} +| | Run Traffic Script On Node | dhcp/send_dhcp_discover.py +| | ... | ${tg_node} | ${args} + +| Send DHCP DISCOVER should fail +| | [Documentation] | Send and receive DHCP DISCOVER should fail. +| | ... +| | ... | *Arguments:* +| | ... | - tg_node - TG node. Type: dictionary +| | ... | - tg_interface1 - TG interface. Type: string +| | ... | - tg_interface2 - TG interface. Type: string +| | ... | - tx_src_ip - Source address of DHCP DISCOVER packet. Type: string +| | ... | - tx_dst_ip - Destination address of DHCP DISCOVER packet. Type: string +| | ... +| | ... | *Return:* +| | ... | - No value returned. +| | ... +| | ... | *Example:* +| | ... +| | ... | \| Send DHCP DISCOVER should fail \| ${nodes['TG']} \ +| | ... | \| eth3 \| eth4 \| 0.0.0.0 \| 255.255.255.255 \| +| | ... +| | [Arguments] | ${tg_node} | ${tg_interface1} | ${tg_interface2} +| | ... | ${tx_src_ip} | ${tx_dst_ip} | +| | ${tg_interface_name1}= | Get interface name | ${tg_node} | ${tg_interface1} +| | ${tg_interface_name2}= | Get interface name | ${tg_node} | ${tg_interface2} +| | ${args}= | Catenate | --tx_if | ${tg_interface_name1} +| | ... | --rx_if | ${tg_interface_name2} +| | ... | --tx_src_ip | ${tx_src_ip} +| | ... | --tx_dst_ip | ${tx_dst_ip} +| | Run Keyword And Expect Error | DHCP DISCOVER timeout +| | ... | Run Traffic Script On Node | dhcp/send_dhcp_discover.py | | ... | ${tg_node} | ${args} diff --git a/resources/templates/vat/dhcp_proxy_config.vat b/resources/templates/vat/dhcp_proxy_config.vat new file mode 100644 index 0000000000..365b8d7de1 --- /dev/null +++ b/resources/templates/vat/dhcp_proxy_config.vat @@ -0,0 +1 @@ +dhcp_proxy_config svr {server_address} src {source_address}
\ No newline at end of file diff --git a/resources/traffic_scripts/dhcp/send_dhcp_discover.py b/resources/traffic_scripts/dhcp/send_dhcp_discover.py new file mode 100755 index 0000000000..1715bb1d01 --- /dev/null +++ b/resources/traffic_scripts/dhcp/send_dhcp_discover.py @@ -0,0 +1,74 @@ +#!/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 DISCOVER 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 main(): + """Send DHCP DISCOVER packet.""" + + args = TrafficScriptArg(['tx_src_ip', 'tx_dst_ip']) + + tx_if = args.get_arg('tx_if') + rx_if = args.get_arg('rx_if') + + rxq = RxQueue(rx_if) + txq = TxQueue(tx_if) + + tx_src_ip = args.get_arg('tx_src_ip') + tx_dst_ip = args.get_arg('tx_dst_ip') + + sent_packets = [] + + dhcp_discover = Ether(dst="ff:ff:ff:ff:ff:ff") / \ + IP(src=tx_src_ip, dst=tx_dst_ip) / \ + UDP(sport=68, dport=67) / \ + 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[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[0][1] != 1: # 1 - DISCOVER message + raise RuntimeError("DHCP DISCOVER message error.") + print "DHCP DISCOVER message OK." + + sys.exit(0) + +if __name__ == "__main__": + main() diff --git a/resources/traffic_scripts/dhcp/send_dhcp_messages.py b/resources/traffic_scripts/dhcp/send_dhcp_messages.py new file mode 100755 index 0000000000..7881c24afd --- /dev/null +++ b/resources/traffic_scripts/dhcp/send_dhcp_messages.py @@ -0,0 +1,307 @@ +#!/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(args): + """Send DHCP DISCOVER packet.""" + + tx_if = args.get_arg('tx_if') + rx_if = args.get_arg('rx_if') + + rxq = RxQueue(rx_if) + txq = TxQueue(tx_if) + + tx_src_ip = "0.0.0.0" + tx_dst_ip = "255.255.255.255" + + server_ip = args.get_arg('server_ip') + proxy_ip = args.get_arg('proxy_ip') + client_mac = args.get_arg('client_mac') + + 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=68, dport=67) / \ + 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." + dhcp_offer(args, option_82) + + +def dhcp_offer(args, option_82): + """Send DHCP OFFER packet.""" + + rx_if = args.get_arg('tx_if') + tx_if = args.get_arg('rx_if') + + rxq = RxQueue(rx_if) + txq = TxQueue(tx_if) + + tx_dst_ip = "255.255.255.255" + server_ip = args.get_arg('server_ip') + server_mac = args.get_arg('server_mac') + client_ip = args.get_arg('client_ip') + proxy_ip = args.get_arg('proxy_ip') + + 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=67, dport=68) / \ + 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." + dhcp_request(args) + + +def dhcp_request(args): + """Send DHCP REQUEST packet.""" + + tx_if = args.get_arg('tx_if') + rx_if = args.get_arg('rx_if') + + rxq = RxQueue(rx_if) + txq = TxQueue(tx_if) + + tx_dst_ip = "255.255.255.255" + server_ip = args.get_arg('server_ip') + client_ip = args.get_arg('client_ip') + client_mac = args.get_arg('client_mac') + proxy_ip = args.get_arg('proxy_ip') + + sent_packets = [] + + dhcp_request = Ether(src=client_mac, dst="ff:ff:ff:ff:ff:ff") / \ + IP(src="0.0.0.0", dst=tx_dst_ip) / \ + UDP(sport=68, dport=67) / \ + 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.") + option_82 = ether[DHCP].options[3][1] + + if ether[DHCP].options[0][1] != 3: # 2 - REQUEST message + raise RuntimeError("DHCP REQUEST message error.") + print "DHCP REQUEST message: OK." + dhcp_ack(args, option_82) + + +def dhcp_ack(args, option_82): + """Send DHCP ACK packet.""" + + rx_if = args.get_arg('tx_if') + tx_if = args.get_arg('rx_if') + + rxq = RxQueue(rx_if) + txq = TxQueue(tx_if) + + tx_dst_ip = "255.255.255.255" + server_ip = args.get_arg('server_ip') + server_mac = args.get_arg('server_mac') + client_ip = args.get_arg('client_ip') + proxy_ip = args.get_arg('proxy_ip') + 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=67, dport=68) / \ + 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 messages.""" + + args = TrafficScriptArg(['server_ip', 'server_mac', 'client_ip', + 'client_mac', 'proxy_ip']) + + dhcp_discover(args) + + sys.exit(0) + +if __name__ == "__main__": + main() |