# Copyright (c) 2021 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.NATUtil | | Documentation | Keywords for NAT feature in VPP. *** Keywords *** | Configure inside and outside interfaces | | [Documentation] | Configure inside and outside interfaces for NAT44. | | | | ... | *Arguments:* | | ... | - node - DUT node to set NAT44 interfaces on. Type: dictionary | | ... | - int_in - Inside interface. Type: string | | ... | - int_out - Outside interface. Type: string | | | | ... | *Example:* | | | | ... | \| Configure inside and outside interfaces \| ${nodes['DUT1']} \ | | ... | \| FortyGigabitEtherneta/0/0 \| FortyGigabitEtherneta/0/1 \| | | | | [Arguments] | ${node} | ${int_in} | ${int_out} | | | | ${int_in_name}= | Set variable | ${node['interfaces']['${int_in}']['name']} | | ${int_out_name}= | Set variable | | ... | ${node['interfaces']['${int_out}']['name']} | | Set NAT44 Interfaces | ${node} | ${int_in_name} | ${int_out_name} | Initialize NAT44 endpoint-dependent mode in circular topology | | [Documentation] | Initialization of NAT44 endpoint-dependent mode on DUT1 | | | | ... | This keyword also sets a test variable \${resetter} | | ... | to hold a callable which resets VPP state. | | ... | Keywords performing search will call it to get consistent trials. | | ... | Tests which do not wish to reset NAT state should use ramp-up, | | ... | so the resetter is not set if \${ramp_up_duration} variable | | ... | is (defined and) nonzero. | | | | ... | *Test variables read:* | | ... | - n_sessions - Expected number of opened sessions. | | | | ${max_sessions}= | Compute Max Translations Per Thread | | ... | ${n_sessions} | ${dp_count_int} | | Enable NAT44 Plugin | ${dut1} | mode=${nat_mode} | sessions=${max_sessions} | | Configure inside and outside interfaces | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${DUT1_${int}2}[0] | | ${resetter} = | Set NAT44 Address Range | | ... | ${dut1} | ${out_net} | ${out_net_end} | | ${ramp_up_rate} = | Get Ramp Up Rate | | Return From Keyword If | ${ramp_up_rate} | | Set Test Variable | \${resetter} # TODO: Remove when 'ip4.Initialize IPv4 forwarding in circular topology' KW # adapted to use IP values from variables | Initialize IPv4 forwarding for NAT44 in circular topology | | [Documentation] | | ... | Set IPv4 forwarding for NAT44: | | ... | - set interfaces up | | ... | - set IP addresses | | ... | - set ARP | | ... | - create routes | | | | ${status} | ${value}= | Run Keyword And Ignore Error | | ... | Variable Should Exist | ${dut2} | | ${dut2_status}= | Set Variable If | '${status}' == 'PASS' | ${True} | | ... | ${False} | | | | Set interfaces in path up | | | | VPP Interface Set IP Address | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${dut1_if1_ip4} | ${dut1_if1_mask} | | VPP Interface Set IP Address | | ... | ${dut1} | ${DUT1_${int}2}[0] | ${dut1_if2_ip4} | ${dut1_if2_mask} | | Run Keyword If | ${dut2_status} | | ... | VPP Interface Set IP Address | | ... | ${dut2} | ${DUT2_${int}1}[0] | ${dut2_if1_ip4} | ${dut2_if1_mask} | | Run Keyword If | ${dut2_status} | | ... | VPP Interface Set IP Address | | ... | ${dut2} | ${DUT2_${int}2}[0] | ${dut2_if2_ip4} | ${dut2_if2_mask} | | | | VPP Add IP Neighbor | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${tg_if1_ip4} | ${TG_pf1_mac}[0] | | Run Keyword If | ${dut2_status} | | ... | VPP Add IP Neighbor | | ... | ${dut1} | ${DUT1_${int}2}[0] | ${dut2_if1_ip4} | | ... | ${DUT2_${int}1_mac}[0] | | ... | ELSE | VPP Add IP Neighbor | | ... | ${dut1} | ${DUT1_${int}2}[0] | ${tg_if2_ip4} | ${TG_pf2_mac}[0] | | Run Keyword If | ${dut2_status} | | ... | VPP Add IP Neighbor | | ... | ${dut2} | ${DUT2_${int}1}[0] | ${dut1_if1_ip4} | | ... | ${DUT1_${int}2_mac}[0] | | Run Keyword If | ${dut2_status} | | ... | VPP Add IP Neighbor | | ... | ${dut2} | ${DUT2_${int}2}[0] | ${tg_if2_ip4}| ${TG_pf2_mac}[0] | | | | Vpp Route Add | | ... | ${dut1} | ${in_net} | ${in_mask} | gateway=${tg_if1_ip4} | | ... | interface=${DUT1_${int}1}[0] | | Run Keyword If | ${dut2_status} | | ... | Vpp Route Add | | ... | ${dut1} | ${dest_net} | ${dest_mask} | gateway=${dut2_if1_ip4} | | ... | interface=${DUT1_${int}2}[0] | | ... | ELSE | Vpp Route Add | | ... | ${dut1} | ${dest_net} | ${dest_mask} | gateway=${tg_if2_ip4} | | ... | interface=${DUT1_${int}2}[0] | | Run Keyword If | ${dut2_status} | | ... | Vpp Route Add | | ... | ${dut2} | ${dest_net} | ${dest_mask} | gateway=${tg_if2_ip4} | | ... | interface=${DUT2_${int}2}[0] | | Run Keyword If | ${dut2_status} | | ... | Vpp Route Add | | ... | ${dut2} | ${out_net} | ${out_mask} | gateway=${dut1_if2_ip4} | | ... | interface=${DUT2_${int}1}[0] | Verify NAT44 TCP sessions number on DUT1 node | | [Documentation] | Verify that all required NAT44 TCP sessions are | | ... | established on DUT1 node. | | | | Verify NAT44 sessions number | ${nodes['DUT1']} | ${n_sessions} | TCP | Verify NAT44 UDP sessions number on DUT1 node | | [Documentation] | Verify that all required NAT44 UDP sessions are | | ... | established on DUT1 node. | | | | Verify NAT44 sessions number | ${nodes['DUT1']} | ${n_sessions} | UDP | Verify NAT44 sessions number | | [Documentation] | Verify that all required NAT44 sessions of required | | ... | protocol are established. | | | | ... | *Arguments:* | | ... | - node - DUT node. Type: dictionary | | ... | - exp_n_sessions - Expected number of NAT44 sessions. Type: integer | | ... | - proto - Required protocol. Type: string | | | | ... | *Example:* | | | | ... | \| Verify NAT44 sessions number \| ${nodes['DUT1']} \| ${64512} \ | | ... | \| UDP \| | | | | [Arguments] | ${node} | ${exp_n_sessions} | ${proto} | | | | ${nat44_sessions}= | Get NAT44 Sessions Number | ${node} | ${proto} | | Should Be Equal As Integers | ${nat44_sessions} | ${exp_n_sessions} | | ... | Not all NAT44 ${proto} sessions have been established # DET44 - NAT44 deterministic | Enable DET44 plugin on DUT | | [Documentation] | Enable DET44 plugin on DUT. | | | | ... | *Arguments:* | | ... | - node - DUT node to enablr DET44 on. | | ... | Type: dictionary | | ... | - inside_vrf - Inside VRF ID; default value: 0. | | ... | Type: string or integer | | ... | - outside_vrf - Outside VRF ID; default value: 0. | | ... | Type: string or integer | | | | ... | *Example:* | | | | ... | \| Enable DET44 plugin on all DUTs \| | | | | [Arguments] | ${node} | ${inside_vrf}=${0} | ${outside_vrf}=${0} | | | | Enable DET44 Plugin | | ... | ${node} | inside_vrf=${inside_vrf} | outside_vrf=${outside_vrf} | Configure DET44 interfaces | | [Documentation] | Configure inside and outside interfaces for DET44. | | | | ... | *Arguments:* | | ... | - node - DUT node to set DET44 interfaces on. Type: dictionary | | ... | - int_in - Inside interface key. Type: string | | ... | - int_out - Outside interface key. Type: string | | | | ... | *Example:* | | | | ... | \| Configure DET44 interfaces \| ${nodes['DUT1']} \| port5 \| port6 \| | | | | [Arguments] | ${node} | ${int_in} | ${int_out} | | | | Set DET44 Interface | ${dut1} | ${int_in} | is_inside=${True} | | Set DET44 Interface | ${dut1} | ${int_out} | is_inside=${False} | Configure deterministic mode for NAT44 | | [Documentation] | Set deterministic behaviour of NAT44 (DET44). | | | | ... | This keyword also sets a test variable \${resetter} | | ... | to hold a callable which resets VPP state. | | ... | Keywords performing search will call it to get consistent trials. | | ... | Tests which do not wish to reset NAT state should use ramp-up, | | ... | so the resetter is not set if \${ramp_up_duration} variable | | ... | is (defined and) nonzero. | | | | ... | *Arguments:* | | ... | - node - DUT node to set deterministic mode for NAT44 on. | | ... | Type: dictionary | | ... | - ip_in - Inside IP. Type: string | | ... | - subnet_in - Inside IP subnet. Type: string | | ... | - ip_out - Outside IP. Type: string | | ... | - subnet_out - Outside IP subnet. Type: string | | | | ... | *Example:* | | | | ... | \| Configure deterministic mode for NAT44 \| ${nodes['DUT1']} \ | | ... | \| 100.0.0.0 \| 12 \| 12.1.1.0 \| 24 \| | | | | [Arguments] | ${node} | ${ip_in} | ${subnet_in} | ${ip_out} | ${subnet_out} | | | | ${resetter} = | Set DET44 Mapping | | ... | ${node} | ${ip_in} | ${subnet_in} | ${ip_out} | ${subnet_out} | | ${ramp_up_rate} = | Get Ramp Up Rate | | Return From Keyword If | ${ramp_up_rate} | | Set Test Variable | \${resetter} | Initialize NAT44 deterministic mode in circular topology | | [Documentation] | Initialization of NAT44 deterministic mode (DET44) | | ... | on DUT1 node. | | | | Enable DET44 plugin on DUT | ${dut1} | | Configure DET44 interfaces | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${DUT1_${int}2}[0] | | Configure deterministic mode for NAT44 | | ... | ${dut1} | ${in_net} | ${in_mask} | ${out_net} | ${out_mask} | Show DET44 verbose | | [Documentation] | Get DET44 settings on the node. | | | | ... | *Arguments:* | | ... | - node - DUT node to show NAT. Type: dictionary | | | | ... | *Example:* | | | | ... | \| Show DET44 verbose \| ${nodes['DUT1']} \| | | | | [Arguments] | ${node} | | | | Show DET44 | ${node} | Verify DET44 sessions number on DUT1 node | | [Documentation] | Verify that all required DET44 sessions are established on | | ... | DUT1 node. | | | | Verify DET44 sessions number | ${nodes['DUT1']} | ${n_sessions} | Verify DET44 sessions number | | [Documentation] | Verify that all required DET44 sessions are established. | | | | ... | *Arguments:* | | ... | - node - DUT node. Type: dictionary | | ... | - exp_n_sessions - Expected number of DET44 sessions. Type: integer | | | | ... | *Example:* | | | | ... | \| Verify DET44 sessions number \| ${nodes['DUT1']} \| ${64512} \| | | | | [Arguments] | ${node} | ${exp_n_sessions} | | | | ${det44_sessions}= | Get DET44 Sessions Number | ${node} | | Should Be Equal As Integers | ${det44_sessions} | ${exp_n_sessions} | | ... | Not all DET44 sessions have been established