# Copyright (c) 2019 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. *** Settings *** | Resource | resources/libraries/robot/shared/default.robot | Resource | resources/libraries/robot/shared/testing_path.robot | Resource | resources/libraries/robot/features/dhcp_proxy.robot | Resource | resources/libraries/robot/ip/ip4.robot | Library | resources.libraries.python.Trace | Force Tags | HW_ENV | VM_ENV | 3_NODE_DOUBLE_LINK_TOPO | SKIP_VPP_PATCH | Test Setup | Set up functional test | Test Teardown | Tear down functional test | Documentation | *DHCPv4 proxy test cases* | ... | ... | *[Top] Network Topologies:* TG = DUT | ... | with two links between the nodes. | ... | *[Enc] Packet Encapsulations:* Eth-IPv4-UDP-BOOTP-DHCP | ... | *[Cfg] DUT configuration:* DUT is configured with DHCPv4 proxy. | ... | *[Ver] TG verification:* Test DHCPv4 packets are sent | ... | on TG on first link to DUT and received on TG on second link. | ... | On receive TG verifies if DHCPv4 packets are valid. *** Variables *** | ${dut_to_tg_if1_ip}= | 172.16.0.1 | ${dut_to_tg_if2_ip}= | 192.168.0.1 | ${dhcp_server_ip}= | 192.168.0.100 | ${client_ip}= | 172.16.0.2 | ${prefix_length}= | 24 | ${discover_src_ip}= | 0.0.0.0 | ${valid_discover_dst_ip}= | 255.255.255.255 | ${invalid_discover_dst_ip}= | 255.255.255.1 *** Test Cases *** | TC01: VPP proxies valid DHCPv4 request to DHCPv4 server | | [Documentation] | | | ... | [Top] TG=DUT \ | | ... | [Enc] Eth-IPv4-UDP-BOOTP-DHCP | | ... | [Cfg] On DUT setup DHCPv4 proxy. | | ... | [Ver] Make TG verify matching DHCPv4 packets between client and DHCPv4 | | ... | server through DHCP proxy. | | ... | | Given Configure path in 2-node circular topology | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} | | And Set interfaces in 2-node circular topology up | | And VPP Route Add | ${dut_node} | 255.255.255.255 | 32 | gateway=${NONE} | | ... | interface=local | use_sw_index=${FALSE} | resolve_attempts=${NONE} | | And Set Interface Address | ${dut_node} | | ... | ${dut_to_tg_if1} | ${dut_to_tg_if1_ip} | ${prefix_length} | | And Set Interface Address | ${dut_node} | | ... | ${dut_to_tg_if2} | ${dut_to_tg_if2_ip} | ${prefix_length} | | And Add Arp On Dut | ${dut_node} | ${dut_to_tg_if2} | ${dhcp_server_ip} | | ... | ${tg_to_dut_if2_mac} | | When DHCP Proxy Config | ${dut_node} | ${dhcp_server_ip} | | ... | ${dut_to_tg_if1_ip} | | Then Send DHCP messages and check answer | ${tg_node} | ${tg_to_dut_if1} | | ... | ${tg_to_dut_if2} | ${dhcp_server_ip} | ${tg_to_dut_if2_mac} | | ... | ${client_ip} | ${tg_to_dut_if1_mac} | ${dut_to_tg_if1_ip} | TC02: VPP proxy ignores invalid DHCPv4 request | | [Documentation] | | | ... | [Top] TG=DUT \ | | ... | [Enc] Eth-IPv4-UDP-BOOTP-DHCP | | ... | [Cfg] On DUT setup DHCPv4 proxy. | | ... | [Ver] Make TG verify matching invalid DHCPv4 packets are dropped. | | ... | | Given Configure path in 2-node circular topology | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} | | And Set interfaces in 2-node circular topology up | | And VPP Route Add | ${dut_node} | 255.255.255.255 | 32 | gateway=${NONE} | | ... | interface=local | use_sw_index=${FALSE} | resolve_attempts=${NONE} | | And Set Interface Address | ${dut_node} | | ... | ${dut_to_tg_if1} | ${dut_to_tg_if1_ip} | ${prefix_length} | | And Set Interface Address | ${dut_node} | | ... | ${dut_to_tg_if2} | ${dut_to_tg_if2_ip} | ${prefix_length} | | And Add Arp On Dut | ${dut_node} | ${dut_to_tg_if2} | ${dhcp_server_ip} | | ... | ${tg_to_dut_if2_mac} | | When DHCP Proxy Config | ${dut_node} | ${dhcp_server_ip} | | ... | ${dut_to_tg_if1_ip} | | Then Send DHCP DISCOVER and check answer | ${tg_node} | ${tg_to_dut_if1} | | ... | ${tg_to_dut_if2} | ${discover_src_ip} | ${valid_discover_dst_ip} | | And DHCP DISCOVER should fail | ${tg_node} | ${tg_to_dut_if1} | | ... | ${tg_to_dut_if2} | ${discover_src_ip} | ${invalid_discover_dst_ip}