# 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 *** | Library | resources.libraries.python.IPUtil | Library | resources.libraries.python.Trace | ... | Resource | resources/libraries/robot/ip/ip4.robot | Resource | resources/libraries/robot/shared/default.robot | Resource | resources/libraries/robot/overlay/gre.robot | Resource | resources/libraries/robot/shared/testing_path.robot | Resource | resources/libraries/robot/shared/traffic.robot | ... | Force Tags | VM_ENV | HW_ENV | 3_NODE_DOUBLE_LINK_TOPO | SKIP_VPP_PATCH | ... | Test Setup | Set up functional test | ... | Test Teardown | Tear down functional test | ... | Documentation | *GREoIPv4 test cases* | ... | ... | *[Top] Network Topologies:* TG=DUT1 2-node topology with two links | ... | between nodes; TG-DUT1-DUT2-TG 3-node circular topology with single | ... | links between nodes. | ... | *[Enc] Packet Encapsulations:* Eth-IPv4-GRE-IPv4-ICMPv4 on DUT1-DUT2, | ... | Eth-IPv4-ICMPv4 on TG-DUTn for routing over GRE tunnel; Eth-IPv4-ICMPv4 | ... | on TG_if1-DUT, Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT for GREoIPv4 | ... | encapsulation and decapsulation verification. | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with IPv4 routing | ... | and static routes. GREoIPv4 tunnel is configured between DUT1 and DUT2. | ... | *[Ver] TG verification:* Test ICMPv4 (or ICMPv6) Echo Request packets are | ... | sent in both directions by TG on links to DUT1 and DUT2; GREoIPv4 | ... | encapsulation and decapsulation are verified separately by TG; on | ... | receive TG verifies packets for correctness and their IPv4 (IPv6) | ... | src-addr, dst-addr and MAC addresses. | ... | *[Ref] Applicable standard specifications:* RFC2784. *** Variables *** | ${net1_address}= | 192.168.0.0 | ${net1_host_address}= | 192.168.0.100 | ${net1_gw_address}= | 192.168.0.1 | ${net2_address}= | 192.168.2.0 | ${net2_host_address}= | 192.168.2.100 | ${net3_address}= | 192.168.3.0 | ${net3_host_address}= | 192.168.3.100 | ${net2_gw_address}= | 192.168.2.1 | ${dut1_ip_address}= | 192.168.1.1 | ${dut2_ip_address}= | 192.168.1.2 | ${dut1_gre_ip}= | 172.16.0.1 | ${dut2_gre_ip}= | 172.16.0.2 | ${dut_tun0_ip1}= | 172.16.0.1 | ${dut_tun0_ip2}= | 172.16.0.2 | ${dut_tun1_ip1}= | 172.16.1.1 | ${dut_tun1_ip2}= | 172.16.1.2 | ${dut1_lo_address}= | 10.0.0.1 | ${tun0_dst}= | 10.0.0.2 | ${tun1_dst}= | 10.0.0.3 | ${prefix}= | 24 *** Test Cases *** | TC01: DUT1 and DUT2 route over GREoIPv4 tunnel between two TG links | | [Documentation] | | ... | [Top] TG-DUT1-DUT2-TG. [Enc] Eth-IPv4-GRE-IPv4-ICMPv4 on \ | | ... | DUT1-DUT2, Eth-IPv4-ICMPv4 on TG-DUTn. [Cfg] On DUT1 and DUT2 | | ... | configure GREoIPv4 tunnel with IPv4 routes towards each other. | | ... | [Ver] Make TG send ICMPv4 Echo Req between its interfaces across | | ... | both DUTs and GRE tunnel between them; verify IPv4 headers on | | ... | received packets are correct. [Ref] RFC2784. | | [Tags] | 3_NODE_SINGLE_LINK_TOPO | 3_NODE_DOUBLE_LINK_TOPO | | Given Configure path in 3-node circular topology | ${nodes['TG']} | | ... | ${nodes['DUT1']} | ${nodes['DUT2']} | ${nodes['TG']} | | And Set interfaces in 3-node circular topology up | | And Configure IP addresses on interfaces | | ... | ${dut1_node} | ${dut1_to_dut2} | ${dut1_ip_address} | ${prefix} | | ... | ${dut1_node} | ${dut1_to_tg} | ${net1_gw_address} | ${prefix} | | ... | ${dut2_node} | ${dut2_to_dut1} | ${dut2_ip_address} | ${prefix} | | ... | ${dut2_node} | ${dut2_to_tg} | ${net2_gw_address} | ${prefix} | | And VPP IP Probe | ${dut1_node} | ${dut1_to_dut2} | ${dut2_ip_address} | | And VPP IP Probe | ${dut2_node} | ${dut2_to_dut1} | ${dut1_ip_address} | | And VPP Add IP Neighbor | ${dut2_node} | ${dut2_to_tg} | | ... | ${net2_host_address} | ${tg_to_dut2_mac} | | ${dut1_gre_interface} | ${dut1_gre_index}= | | ... | When Create GRE tunnel interface and set it up | | ... | ${dut1_node} | ${dut1_ip_address} | ${dut2_ip_address} | | ${dut2_gre_interface} | ${dut2_gre_index}= | | ... | And Create GRE tunnel interface and set it up | | ... | ${dut2_node} | ${dut2_ip_address} | ${dut1_ip_address} | | And Configure IP addresses on interfaces | | ... | ${dut1_node} | ${dut1_gre_index} | ${dut1_gre_ip} | ${prefix} | | ... | ${dut2_node} | ${dut2_gre_index} | ${dut2_gre_ip} | ${prefix} | | And Vpp Route Add | ${dut1_node} | ${net2_address} | ${prefix} | | ... | gateway=${dut2_gre_ip} | interface=${dut1_gre_index} | | Then Send packet and verify headers | ${tg_node} | | ... | ${net1_host_address} | ${net2_host_address} | | ... | ${tg_to_dut1} | ${tg_to_dut1_mac} | ${dut1_to_tg_mac} | | ... | ${tg_to_dut2} | ${dut2_to_tg_mac} | ${tg_to_dut2_mac} | TC02: DUT encapsulates IPv4 into GREoIPv4 tunnel - GRE header verification | | [Documentation] | | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \ | | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure | | ... | GREoIPv4 tunnel with IPv4 route towards TG. [Ver] Make TG send | | ... | non-encapsulated ICMPv4 Echo Req to DUT; verify TG received | | ... | GREoIPv4 encapsulated packet is correct. [Ref] RFC2784. | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | | Given Configure path in 2-node circular topology | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} | | And Set interfaces in 2-node circular topology up | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix} | | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix} | | And VPP Add IP Neighbor | ${dut_node} | ${dut_to_tg_if2} | | ... | ${dut2_ip_address} | ${tg_to_dut_if2_mac} | | ${dut1_gre_interface} | ${dut1_gre_index}= | | ... | When Create GRE tunnel interface and set it up | | ... | ${dut_node} | ${dut1_ip_address} | ${dut2_ip_address} | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut1_gre_index} | ${dut1_gre_ip} | ${prefix} | | And Vpp Route Add | ${dut_node} | ${net2_address} | ${prefix} | | ... | gateway=${dut2_gre_ip} | interface=${dut1_gre_index} | | Then Send ICMPv4 and check received GRE header | | ... | ${tg_node} | ${tg_to_dut_if1} | ${tg_to_dut_if2} | | ... | ${dut_to_tg_if1_mac} | ${tg_to_dut_if2_mac} | | ... | ${net1_host_address} | ${net2_host_address} | | ... | ${dut1_ip_address} | ${dut2_ip_address} | TC03: DUT decapsulates IPv4 from GREoIPv4 tunnel - IPv4 header verification | | [Documentation] | | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \ | | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure | | ... | GREoIPv4 tunnel towards TG. [Ver] Make TG send ICMPv4 Echo Req | | ... | encapsulated into GREoIPv4 towards VPP; verify TG received IPv4 | | ... | de-encapsulated packet is correct. [Ref] RFC2784. | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | | Given Configure path in 2-node circular topology | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} | | And Set interfaces in 2-node circular topology up | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix} | | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix} | | And VPP Add IP Neighbor | ${dut_node} | ${dut_to_tg_if1} | | ... | ${net1_host_address} | ${tg_to_dut_if1_mac} | | ${dut1_gre_interface} | ${dut1_gre_index}= | | ... | When Create GRE tunnel interface and set it up | | ... | ${dut_node} | ${dut1_ip_address} | ${dut2_ip_address} | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut1_gre_index} | ${dut1_gre_ip} | ${prefix} | | Then Send GRE and check received ICMPv4 header | | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if1} | | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if1_mac} | | ... | ${net2_host_address} | ${net1_host_address} | | ... | ${dut2_ip_address} | ${dut1_ip_address} | TC04: DUT encapsulates IPv4 into GREoIPv4 different tunnels - GRE header verification | | [Documentation] | | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \ | | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure two | | ... | GRE tunnels with loopback's source address. Destination address of | | ... | tunnels are routed via next hop address of DUT's to TG if2, where | | ... | should be only GRE encapsulated packets. Each tunnel has IPv4 address | | ... | and configured prefix routed through the tunnel. [Ver] Make TG send | | ... | non-encapsulated ICMPv4 Echo Req to DUT; verify TG received GREoIPv4 | | ... | encapsulated packet is correct for each tunnel. [Ref] RFC2784. | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | | Given Configure path in 2-node circular topology | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} | | And Set interfaces in 2-node circular topology up | | ${dut1_lo_index}= | And VPP Create loopback | ${dut_node} | | And Set Interface State | ${dut_node} | ${dut1_lo_index} | up | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix} | | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix} | | ... | ${dut_node} | ${dut1_lo_index} | ${dut1_lo_address} | ${32} | | And VPP Add IP Neighbor | ${dut_node} | ${dut_to_tg_if2} | | ... | ${dut2_ip_address} | ${tg_to_dut_if2_mac} | | And Vpp Route Add | ${dut_node} | ${tun0_dst} | ${32} | | ... | gateway=${dut2_ip_address} | interface=${dut_to_tg_if2} | | And Vpp Route Add | ${dut_node} | ${tun1_dst} | ${32} | | ... | gateway=${dut2_ip_address} | interface=${dut_to_tg_if2} | | ${dut1_gre0_interface} | ${dut1_gre0_index}= | | ... | When Create GRE tunnel interface and set it up | | ... | ${dut_node} | ${dut1_lo_address} | ${tun0_dst} | | ${dut1_gre1_interface} | ${dut1_gre1_index}= | | ... | And Create GRE tunnel interface and set it up | | ... | ${dut_node} | ${dut1_lo_address} | ${tun1_dst} | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut1_gre0_index} | ${dut_tun0_ip1} | ${prefix} | | ... | ${dut_node} | ${dut1_gre1_index} | ${dut_tun1_ip1} | ${prefix} | | And Vpp Route Add | ${dut_node} | ${net2_address} | ${prefix} | | ... | gateway=${dut_tun0_ip2} | interface=${dut1_gre0_index} | | And Vpp Route Add | ${dut_node} | ${net3_address} | ${prefix} | | ... | gateway=${dut_tun1_ip2} | interface=${dut1_gre1_index} | | Then Send ICMPv4 and check received GRE header | | ... | ${tg_node} | ${tg_to_dut_if1} | ${tg_to_dut_if2} | | ... | ${dut_to_tg_if1_mac} | ${tg_to_dut_if2_mac} | | ... | ${net1_host_address} | ${net2_host_address} | | ... | ${dut1_lo_address} | ${tun0_dst} | | And Send ICMPv4 and check received GRE header | | ... | ${tg_node} | ${tg_to_dut_if1} | ${tg_to_dut_if2} | | ... | ${dut_to_tg_if1_mac} | ${tg_to_dut_if2_mac} | | ... | ${net1_host_address} | ${net3_host_address} | | ... | ${dut1_lo_address} | ${tun1_dst} | TC05: DUT re-encapsulates IPv4 GRE into other GRE tunnel - GRE header verification | | [Documentation] | | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \ | | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure two | | ... | GRE tunnels with loopback's source address. Destination address of | | ... | tunnels are routed via next hop address of DUT's to TG if2, where | | ... | should be only GRE encapsulated packets. Each tunnel has IPv4 address | | ... | and configured prefix routed through the tunnel. [Ver] Make TG send | | ... | encapsulated IPv4 UDP to DUT; Encapsulated IP source is behind | | ... | configured tunnel same as destination; verify TG received GREoIPv4 | | ... | encapsulated packet is correct. [Ref] RFC2784. | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | | Given Configure path in 2-node circular topology | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} | | And Set interfaces in 2-node circular topology up | | ${dut1_lo_index}= | And VPP Create loopback | ${dut_node} | | And Set Interface State | ${dut_node} | ${dut1_lo_index} | up | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix} | | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix} | | ... | ${dut_node} | ${dut1_lo_index} | ${dut1_lo_address} | ${32} | | And VPP Add IP Neighbor | ${dut_node} | ${dut_to_tg_if2} | | ... | ${dut2_ip_address} | ${tg_to_dut_if2_mac} | | And Vpp Route Add | ${dut_node} | ${tun0_dst} | ${32} | | ... | gateway=${dut2_ip_address} | interface=${dut_to_tg_if2} | | And Vpp Route Add | ${dut_node} | ${tun1_dst} | ${32} | | ... | gateway=${dut2_ip_address} | interface=${dut_to_tg_if2} | | ${dut1_gre0_interface} | ${dut1_gre0_index}= | | ... | When Create GRE tunnel interface and set it up | | ... | ${dut_node} | ${dut1_lo_address} | ${tun0_dst} | | ${dut1_gre1_interface} | ${dut1_gre1_index}= | | ... | And Create GRE tunnel interface and set it up | | ... | ${dut_node} | ${dut1_lo_address} | ${tun1_dst} | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut1_gre0_index} | ${dut_tun0_ip1} | ${prefix} | | ... | ${dut_node} | ${dut1_gre1_index} | ${dut_tun1_ip1} | ${prefix} | | And Vpp Route Add | ${dut_node} | ${net2_address} | ${prefix} | | ... | gateway=${dut_tun0_ip2} | interface=${dut1_gre0_index} | | And Vpp Route Add | ${dut_node} | ${net3_address} | ${prefix} | | ... | gateway=${dut_tun1_ip2} | interface=${dut1_gre1_index} | | Then Send GRE and check received GRE header | | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if2} | | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if2_mac} | | ... | ${dut1_lo_address} | ${tun0_dst} | | ... | ${net3_host_address} | ${net2_host_address} | | ... | ${tg_to_dut_if2_mac} | ${dut_to_tg_if2_mac} | | ... | ${tun1_dst} | ${dut1_lo_address} | TC06: DUT do not process GRE with wrong tunnel destination IP | | [Documentation] | | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \ | | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure two | | ... | GRE tunnels with loopback's source address. Destination address of | | ... | tunnels are routed via next hop address of DUT's to TG if2, where | | ... | should be only GRE encapsulated packets. On DUT's to TG if1 interface | | ... | is configured test destination host MAC address. [Ver] Make TG send | | ... | GRE encapsulated ICMPv4 Echo Req to DUT; verify TG received | | ... | de-capsulated packet is correct, then send packet with wrong tunnel | | ... | destination address. [Ref] RFC2784. | | ... | | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | | Given Configure path in 2-node circular topology | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} | | And Set interfaces in 2-node circular topology up | | ${dut1_lo_index}= | And VPP Create loopback | ${dut_node} | | And Set Interface State | ${dut_node} | ${dut1_lo_index} | up | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix} | | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix} | | ... | ${dut_node} | ${dut1_lo_index} | ${dut1_lo_address} | ${32} | | And VPP Add IP Neighbor | ${dut_node} | ${dut_to_tg_if1} | | ... | ${net1_host_address} | ${tg_to_dut_if1_mac} | | And VPP Add IP Neighbor | ${dut_node} | ${dut_to_tg_if2} | | ... | ${dut2_ip_address} | ${tg_to_dut_if2_mac} | | And Vpp Route Add | ${dut_node} | ${tun0_dst} | ${32} | | ... | gateway=${dut2_ip_address} | interface=${dut_to_tg_if2} | | And Vpp Route Add | ${dut_node} | ${tun1_dst} | ${32} | | ... | gateway=${dut2_ip_address} | interface=${dut_to_tg_if2} | | ${dut1_gre0_interface} | ${dut1_gre0_index}= | | ... | When Create GRE tunnel interface and set it up | | ... | ${dut_node} | ${dut1_lo_address} | ${tun0_dst} | | ${dut1_gre1_interface} | ${dut1_gre1_index}= | | ... | And Create GRE tunnel interface and set it up | | ... | ${dut_node} | ${dut1_lo_address} | ${tun1_dst} | | And Configure IP addresses on interfaces | | ... | ${dut_node} | ${dut1_gre0_index} | ${dut_tun0_ip1} | ${prefix} | | ... | ${dut_node} | ${dut1_gre1_index} | ${dut_tun1_ip1} | ${prefix} | | Then Send GRE and check received ICMPv4 header | | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if1} | | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if1_mac} | | ... | ${net2_host_address} | ${net1_host_address} | | ... | ${tun0_dst} | ${dut1_lo_address} | | And Run Keyword And Expect Error | ICMP echo Rx timeout | | ... | Send GRE and check received ICMPv4 header | | | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if1} | | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if1_mac} | | ... | ${net2_host_address} | ${net1_host_address} | | ... | ${tun0_dst} | ${dut1_ip_address}