*** Settings ***
Documentation Mininet library. This library is useful for tests using mininet tool to simulate devices.
Library SSHLibrary
+Resource SSHKeywords.robot
Resource Utils.robot
+Resource OVSDB.robot
+Resource ClusterManagement.robot
Variables ../variables/Variables.py
+*** Variables ***
+${switch_private_key} switch.key
+${switch_certificate} switch.crt
+${controller_ca_list} cachain.crt
+${topology_file} create_fullymesh.py
+${topology_file_path} MininetTopo/${topology_file}
+
*** Keywords ***
Start Mininet Single Controller
- [Arguments] ${mininet}=${TOOLS_SYSTEM_IP} ${controller}=${ODL_SYSTEM_IP} ${options}=--topo tree,1 --switch ovsk,protocols=OpenFlow13 ${custom}=${EMPTY} ${ofport}=6633
+ [Arguments] ${mininet}=${TOOLS_SYSTEM_IP} ${controller}=${ODL_SYSTEM_IP} ${options}=--topo tree,1 ${custom}=${EMPTY} ${ofversion}=13 ${ofport}=${ODL_OF_PORT}
+ ... ${timeout}=${DEFAULT_TIMEOUT}
[Documentation] Start Mininet with custom topology and connect to controller.
Log Clear any existing mininet
- Clean Mininet System ${mininet}
- ${mininet_conn_id}= Open Connection ${mininet} prompt=${TOOLS_SYSTEM_PROMPT} timeout=${DEFAULT_TIMEOUT}
+ Utils.Clean Mininet System ${mininet}
+ ${mininet_conn_id}= SSHKeywords.Open_Connection_To_Tools_System ip_address=${mininet} timeout=${timeout}
Set Suite Variable ${mininet_conn_id}
- Flexible Mininet Login
Run Keyword If '${custom}' != '${EMPTY}' Put File ${custom}
Log Start mininet ${options} to ${controller}
- Write sudo mn --controller 'remote,ip=${controller},port=${ofport}' ${options}
- Read Until mininet>
- ${output}= Run Command On Mininet ${mininet} sudo ovs-vsctl show
- Log ${output}
+ SSHLibrary.Write sudo mn --controller 'remote,ip=${controller},port=${ofport}' ${options} --switch ovsk,protocols=OpenFlow${ofversion}
+ SSHLibrary.Read Until mininet>
+ Log Check OVS configuratiom
+ SSHLibrary.Write sh ovs-vsctl show
+ SSHLibrary.Read Until mininet>
[Return] ${mininet_conn_id}
Start Mininet Multiple Controllers
- [Arguments] ${mininet} ${controller_index_list} ${options}=--topo tree,1 --switch ovsk,protocols=OpenFlow13 ${custom}=${EMPTY} ${ofport}=6633
- [Documentation] Start Mininet with custom topology and connect to all controllers in the ${controller_index_list}.
+ [Arguments] ${mininet}=${TOOLS_SYSTEM_IP} ${controller_index_list}=${EMPTY} ${options}=--topo tree,1 ${custom}=${EMPTY} ${ofversion}=13 ${ofport}=${ODL_OF_PORT}
+ ... ${protocol}=tcp ${timeout}=${DEFAULT_TIMEOUT}
+ [Documentation] Start Mininet with custom topology and connect to list of controllers in ${controller_index_list} or all if no list is provided.
+ ${index_list} = ClusterManagement.List Indices Or All given_list=${controller_index_list}
Log Clear any existing mininet
- Clean Mininet System ${mininet}
- ${mininet_conn_id}= Open Connection ${mininet} prompt=${TOOLS_SYSTEM_PROMPT} timeout=${DEFAULT_TIMEOUT}
+ Utils.Clean Mininet System ${mininet}
+ ${mininet_conn_id}= SSHKeywords.Open_Connection_To_Tools_System ip_address=${mininet} timeout=${timeout}
Set Suite Variable ${mininet_conn_id}
- Flexible Mininet Login
Run Keyword If '${custom}' != '${EMPTY}' Put File ${custom}
+ Run Keyword If '${protocol}' == 'ssl' Install Certificates In Mininet
Log Start mininet ${options}
- Write sudo mn ${options}
- Read Until mininet>
+ SSHLibrary.Write sudo mn ${options}
+ SSHLibrary.Read Until mininet>
Log Create controller configuration
- ${ovs_opt}= Set Variable
- : FOR ${index} IN @{controller_index_list}
- \ ${ovs_opt}= Catenate ${ovs_opt} ${SPACE}tcp:${ODL_SYSTEM_${index}_IP}:${ofport}
- \ Log ${ovs_opt}
- Log Find Number of OVS bridges
- ${num_bridges} Run Command On Mininet ${mininet} sudo ovs-vsctl show | grep Bridge | wc -l
+ ${controller_opt}= Set Variable
+ FOR ${index} IN @{index_list}
+ ${controller_opt}= Catenate ${controller_opt} ${SPACE}${protocol}:${ODL_SYSTEM_${index}_IP}:${ofport}
+ Log ${controller_opt}
+ END
+ Log Open extra SSH connection to configure the OVS bridges
+ SSHKeywords.Open_Connection_To_Tools_System ip_address=${mininet} timeout=${timeout}
+ ${num_bridges} SSHLibrary.Execute Command sudo ovs-vsctl show | grep Bridge | wc -l
${num_bridges}= Convert To Integer ${num_bridges}
- Log Configure OVS controllers ${ovs_opt} in all bridges
- : FOR ${i} IN RANGE 1 ${num_bridges+1}
- \ ${bridge}= Run Command On Mininet ${mininet} sudo ovs-vsctl show | grep Bridge | cut -c 12- | sort | head -${i} | tail -1
- \ Run Command On Mininet ${mininet} sudo ovs-vsctl set-controller ${bridge} ${ovs_opt}
+ ${bridges}= Create List
+ FOR ${i} IN RANGE 1 ${num_bridges+1}
+ ${bridge}= SSHLibrary.Execute Command sudo ovs-vsctl show | grep Bridge | cut -c 12- | sort | head -${i} | tail -1
+ SSHLibrary.Execute Command sudo ovs-vsctl del-controller ${bridge} && sudo ovs-vsctl set bridge ${bridge} protocols=OpenFlow${ofversion}
+ Collections.Append To List ${bridges} ${bridge}
+ END
+ Log Configure OVS controllers ${controller_opt} in all bridges
+ FOR ${bridge} IN @{bridges}
+ SSHLibrary.Execute Command sudo ovs-vsctl set-controller ${bridge} ${controller_opt}
+ END
Log Check OVS configuratiom
- ${output}= Run Command On Mininet ${mininet} sudo ovs-vsctl show
+ ${output}= SSHLibrary.Execute Command sudo ovs-vsctl show
Log ${output}
+ SSHLibrary.Close Connection
[Return] ${mininet_conn_id}
+Start Mininet Multiple Hosts
+ [Arguments] ${hosts} ${mininet}=${TOOLS_SYSTEM_IP} ${controller}=${ODL_SYSTEM_IP} ${ofversion}=13 ${ofport}=${ODL_OF_PORT} ${mininet_timeout}=${DEFAULT_TIMEOUT}
+ [Documentation] Start mininet 1 switch with ${hosts} hosts attached.
+ Log Start Mininet Linear
+ MininetKeywords.StartMininet Single Controller options=--topo single,${hosts} --mac ofversion=${ofversion} ofport=${ofport} timeout=${mininet_timeout}
+
+Start Mininet Linear
+ [Arguments] ${switches} ${mininet}=${TOOLS_SYSTEM_IP} ${controller}=${ODL_SYSTEM_IP} ${ofversion}=13 ${ofport}=${ODL_OF_PORT} ${mininet_timeout}=${DEFAULT_TIMEOUT}
+ [Documentation] Start mininet linear topology with ${switches} nodes.
+ Log Start Mininet Linear
+ MininetKeywords.StartMininet Single Controller options=--topo linear,${switches} ofversion=${ofversion} ofport=${ofport} timeout=${mininet_timeout}
+
+Start Mininet Full Mesh
+ [Arguments] ${switches} ${mininet}=${TOOLS_SYSTEM_IP} ${controller}=${ODL_SYSTEM_IP} ${ofversion}=13 ${ofport}=${ODL_OF_PORT} ${hosts}=0
+ ... ${mininet_timeout}=${DEFAULT_TIMEOUT}
+ [Documentation] Start a custom mininet topology.
+ ${mininet_conn_id}= SSHLibrary.Open Connection ${mininet} prompt=${TOOLS_SYSTEM_PROMPT} timeout=${mininet_timeout}
+ Set Suite Variable ${mininet_conn_id}
+ SSHKeywords.Flexible_Mininet_Login
+ Log Copying ${topology_file_path} file to Mininet VM and Creating Full Mesh topology
+ SSHLibrary.Put File ${CURDIR}/${topology_file_path}
+ SSHLibrary.Write python ${topology_file} ${switches} ${hosts} 00:00:00:00:00:00 10.0.0.0
+ SSHLibrary.Read Until ${TOOLS_SYSTEM_PROMPT}
+ Log Start Mininet Full Mesh
+ SSHLibrary.Write sudo mn --controller=remote,ip=${controller},port=${ofport} --custom switch.py --topo demotopo --switch ovsk,protocols=OpenFlow${ofversion}
+ SSHLibrary.Read Until mininet>
+ Log Check OVS configuratiom
+ SSHLibrary.Write sh ovs-vsctl show
+ ${output}= Read Until mininet>
+ # Ovsdb connection is sometimes lost after mininet is started. Checking if the connection is alive before proceeding.
+ Should Not Contain ${output} database connection failed
+
Send Mininet Command
- [Arguments] ${mininet_conn_id} ${cmd}=help
- [Documentation] Sends Command ${cmd} to Mininet session ${mininet_conn_id} and returns read buffer response.
- Switch Connection ${mininet_conn_id}
+ [Arguments] ${mininet_conn}=${EMPTY} ${cmd}=help
+ [Documentation] Sends Command ${cmd} to Mininet session ${mininet_conn} and returns read buffer response.
+ Run Keyword If """${mininet_conn}""" != "" SSHLibrary.Switch Connection ${mininet_conn}
SSHLibrary.Write ${cmd}
- ${output}= Read Until mininet>
+ ${output}= SSHLibrary.Read Until mininet>
[Return] ${output}
Send Mininet Command Multiple Sessions
[Arguments] ${mininet_conn_list} ${cmd}=help
[Documentation] Sends Command ${cmd} to Mininet sessions in ${mininet_conn_list} and returns list of read buffer responses.
${output_list}= Create List
- : FOR ${mininet_conn_id} IN @{mininet_conn_list}
- \ ${output}= Send Mininet Command ${mininet_conn_id} ${cmd}
- \ Append To List ${output_list} ${output}
+ FOR ${mininet_conn} IN @{mininet_conn_list}
+ ${output}= Utils.Send Mininet Command ${mininet_conn} ${cmd}
+ Collections.Append To List ${output_list} ${output}
+ END
[Return] ${output_list}
Stop Mininet And Exit
- [Arguments] ${mininet_conn_id}
- [Documentation] Stops Mininet and exits session ${mininet_conn_id}
- Switch Connection ${mininet_conn_id}
+ [Arguments] ${mininet_conn}=${EMPTY}
+ [Documentation] Stops Mininet and exits session ${mininet_conn}
+ Run Keyword If """${mininet_conn}""" != "" SSHLibrary.Switch Connection ${mininet_conn}
SSHLibrary.Write exit
- Read Until ${TOOLS_SYSTEM_PROMPT}
- Close Connection
+ SSHLibrary.Read Until ${TOOLS_SYSTEM_PROMPT}
+ SSHLibrary.Close Connection
Stop Mininet And Exit Multiple Sessions
[Arguments] ${mininet_conn_list}
[Documentation] Stops Mininet and exits sessions in ${mininet_conn_list}.
- : FOR ${mininet_conn_id} IN @{mininet_conn_list}
- \ Stop Mininet And Exit ${mininet_conn_id}
+ FOR ${mininet_conn} IN @{mininet_conn_list}
+ MininetKeywords.Stop Mininet And Exit ${mininet_conn}
+ END
+
+Disconnect Cluster Mininet
+ [Arguments] ${action}=break ${member_index_list}=${EMPTY}
+ [Documentation] Break and restore controller to mininet connection via iptables.
+ ${index_list} = ClusterManagement.List_Indices_Or_All given_list=${member_index_list}
+ FOR ${index} IN @{index_list}
+ ${rule} = BuiltIn.Set Variable OUTPUT -p all --source ${ODL_SYSTEM_${index}_IP} --destination ${TOOLS_SYSTEM_IP} -j DROP
+ ${command} = BuiltIn.Set Variable If '${action}'=='restore' sudo /sbin/iptables -D ${rule} sudo /sbin/iptables -I ${rule}
+ Log To Console ${ODL_SYSTEM_${index}_IP}
+ Utils.Run Command On Controller ${ODL_SYSTEM_${index}_IP} cmd=${command}
+ ${command} = BuiltIn.Set Variable sudo /sbin/iptables -L -n
+ ${output} = Utils.Run Command On Controller cmd=${command}
+ BuiltIn.Log ${output}
+ END
+
+Verify Aggregate Flow From Mininet Session
+ [Arguments] ${mininet_conn}=${EMPTY} ${flow_count}=0 ${time_out}=0s
+ [Documentation] Verify flow count per switch
+ Wait Until Keyword Succeeds ${time_out} 2s MininetKeywords.Check Flows In Mininet ${mininet_conn} ${flow_count}
+
+Check Flows In Mininet
+ [Arguments] ${mininet_conn}=${EMPTY} ${flow_count}=0
+ [Documentation] Sync with mininet to match exact number of flows
+ Run Keyword If """${mininet_conn}""" != "" SSHLibrary.Switch Connection ${mininet_conn}
+ ${cmd} = Set Variable dpctl dump-aggregate -O OpenFlow13
+ ${output}= MininetKeywords.Send Mininet Command ${mininet_conn} ${cmd}
+ ${flows}= String.Get RegExp Matches ${output} (?<=flow_count\=).*?(?=\r)
+ ${total_flows}= BuiltIn.Evaluate sum(map(int, ${flows}))
+ Should Be Equal As Numbers ${total_flows} ${flow_count}
+
+Verify Mininet Ping
+ [Arguments] ${host1} ${host2}
+ [Documentation] Send ping from mininet and verify connectivity.
+ SSHLibrary.Write ${host1} ping -w 3 ${host2}
+ ${result}= SSHLibrary.Read Until mininet>
+ Should Contain ${result} 64 bytes
+
+Verify Mininet No Ping
+ [Arguments] ${host1} ${host2}
+ [Documentation] Send ping from mininet and verify no conectivity.
+ SSHLibrary.Write ${host1} ping -w 3 ${host2}
+ ${result}= SSHLibrary.Read Until mininet>
+ Should Contain ${result} 100% packet loss
+
+Ping All Hosts
+ [Arguments] @{host_list}
+ [Documentation] Do one round of ping from one host to all other hosts in mininet.
+ ... Note that a single ping failure will exit the loop and return a non zero value.
+ ${source}= Get From List ${host_list} ${0}
+ FOR ${h} IN @{host_list}
+ ${status}= Ping Two Hosts ${source} ${h} 1
+ Exit For Loop If ${status}!=${0}
+ END
+ [Return] ${status}
+
+Ping Two Hosts
+ [Arguments] ${host1} ${host2} ${pingcount}=2
+ [Documentation] Ping between mininet hosts. Must be used only after a mininet session is in place.
+ ... Returns non zero value if there is 100% packet loss.
+ SSHLibrary.Write ${host1} ping -c ${pingcount} ${host2}
+ ${out}= SSHLibrary.Read Until mininet>
+ ${ret}= String.Get Lines Matching Regexp ${out} .*100% packet loss.*
+ ${len}= Get Length ${ret}
+ [Return] ${len}
+
+Get Mininet Hosts
+ [Documentation] Get all the hosts from mininet
+ ${host_list}= Create List
+ SSHLibrary.Write nodes
+ ${out}= SSHLibrary.Read Until mininet>
+ @{words}= String.Split String ${out} ${SPACE}
+ FOR ${item} IN @{words}
+ ${h}= String.Get Lines Matching Regexp ${item} h[0-9]*
+ Run Keyword If '${h}' != '${EMPTY}' Collections.Append To List ${host_list} ${h}
+ END
+ [Return] ${host_list}
+
+Install Certificates In Mininet
+ [Documentation] Copy and install certificates in simulator.
+ Comment Copy Certificates
+ SSHLibrary.Put File ${CURDIR}/tls/${switch_private_key} .
+ SSHLibrary.Put File ${CURDIR}/tls/${switch_certificate} .
+ SSHLibrary.Put File ${CURDIR}/tls/${controller_ca_list} .
+ Comment Install Certificates
+ SSHLibrary.Execute Command sudo mv ${switch_private_key} /etc/openvswitch && sudo mv ${switch_certificate} /etc/openvswitch && sudo mv ${controller_ca_list} /etc/openvswitch
+ SSHLibrary.Execute Command sudo ovs-vsctl set-ssl /etc/openvswitch/${switch_private_key} /etc/openvswitch/${switch_certificate} /etc/openvswitch/${controller_ca_list}
+ ${std_out}= SSHLibrary.Execute Command . sudo ovs-vsctl get-ssl
+ Log ${std_out}
Code Review / integration / test.git / blobdiff