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Saurav Das
decd7a6c 1 parent 8d3de3df

Simple software switch pipeline. 

Change-Id: Iaaee946967cb339a875564d962d3467899df0d31
Inline Side-by-side
Showing 6 changed files with 555 additions and 9 deletions
......@@ -52,6 +52,12 @@
<artifactId>onos-of-api</artifactId>
</dependency>
<dependency>
<groupId>org.onosproject</groupId>
<artifactId>onos-core-serializers</artifactId>
<version>1.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.easymock</groupId>
<artifactId>easymock</artifactId>
......@@ -63,6 +69,8 @@
<artifactId>org.apache.felix.scr.annotations</artifactId>
</dependency>
</dependencies>
<build>
......
......@@ -29,12 +29,11 @@ import org.projectfloodlight.openflow.types.TableId;
import java.util.Collections;
import java.util.concurrent.atomic.AtomicBoolean;
//import java.util.ArrayList;
/**
* Corsa switch driver for BGP Router deployment.
* Corsa switch handshaker.
*/
public class OFCorsaSwitchDriver extends AbstractOpenFlowSwitch {
public class CorsaSwitchHandShaker extends AbstractOpenFlowSwitch {
private AtomicBoolean handShakeComplete = new AtomicBoolean(false);
......
......@@ -13,6 +13,10 @@ import org.onosproject.net.flow.TrafficSelector;
import org.onosproject.net.flow.TrafficTreatment;
import org.slf4j.Logger;
/**
* Driver for Corsa TTP.
*
*/
public class CorsaPipeline extends OVSCorsaPipeline {
private final Logger log = getLogger(getClass());
......@@ -37,7 +41,6 @@ public class CorsaPipeline extends OVSCorsaPipeline {
.makePermanent()
.forTable(VLAN_MPLS_TABLE).build();
ops = install ? ops.add(rule) : ops.remove(rule);
flowRuleService.apply(ops.build(new FlowRuleOperationsContext() {
......
......@@ -102,7 +102,6 @@ public class OFDPA1Pipeline extends AbstractHandlerBehaviour implements Pipeline
protected static final int ACL_TABLE = 60;
protected static final int MAC_LEARNING_TABLE = 254;
@SuppressWarnings("unused")
private static final int HIGHEST_PRIORITY = 0xffff;
private static final int DEFAULT_PRIORITY = 0x8000;
private static final int LOWEST_PRIORITY = 0x0;
......
package org.onosproject.driver.pipeline;
import static org.slf4j.LoggerFactory.getLogger;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.concurrent.ConcurrentHashMap;
import org.onlab.osgi.ServiceDirectory;
import org.onlab.packet.Ethernet;
import org.onlab.packet.MacAddress;
import org.onlab.packet.VlanId;
import org.onlab.util.KryoNamespace;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.CoreService;
import org.onosproject.net.DeviceId;
import org.onosproject.net.PortNumber;
import org.onosproject.net.behaviour.NextGroup;
import org.onosproject.net.behaviour.Pipeliner;
import org.onosproject.net.behaviour.PipelinerContext;
import org.onosproject.net.driver.AbstractHandlerBehaviour;
import org.onosproject.net.flow.DefaultFlowRule;
import org.onosproject.net.flow.DefaultTrafficSelector;
import org.onosproject.net.flow.DefaultTrafficTreatment;
import org.onosproject.net.flow.FlowRule;
import org.onosproject.net.flow.FlowRuleOperations;
import org.onosproject.net.flow.FlowRuleOperationsContext;
import org.onosproject.net.flow.FlowRuleService;
import org.onosproject.net.flow.TrafficSelector;
import org.onosproject.net.flow.TrafficTreatment;
import org.onosproject.net.flow.criteria.Criteria;
import org.onosproject.net.flow.criteria.Criterion;
import org.onosproject.net.flow.criteria.EthCriterion;
import org.onosproject.net.flow.criteria.EthTypeCriterion;
import org.onosproject.net.flow.criteria.IPCriterion;
import org.onosproject.net.flow.criteria.PortCriterion;
import org.onosproject.net.flow.criteria.VlanIdCriterion;
import org.onosproject.net.flowobjective.FilteringObjective;
import org.onosproject.net.flowobjective.FlowObjectiveStore;
import org.onosproject.net.flowobjective.ForwardingObjective;
import org.onosproject.net.flowobjective.NextObjective;
import org.onosproject.net.flowobjective.Objective;
import org.onosproject.net.flowobjective.ObjectiveError;
import org.slf4j.Logger;
import org.onosproject.store.serializers.KryoNamespaces;
/**
* Simple 2-Table Pipeline for Software/NPU based routers. This pipeline
* does not forward IP traffic to next-hop groups. Instead it forwards traffic
* using OF FlowMod actions.
*/
public class SoftRouterPipeline extends AbstractHandlerBehaviour implements Pipeliner {
protected static final int FILTER_TABLE = 0;
protected static final int FIB_TABLE = 1;
private static final int DROP_PRIORITY = 0;
private static final int DEFAULT_PRIORITY = 0x8000;
private static final int HIGHEST_PRIORITY = 0xffff;
private ServiceDirectory serviceDirectory;
protected FlowRuleService flowRuleService;
private CoreService coreService;
private FlowObjectiveStore flowObjectiveStore;
protected DeviceId deviceId;
protected ApplicationId appId;
private ApplicationId driverId;
private Collection<Filter> filters;
private Collection<ForwardingObjective> pendingVersatiles;
private KryoNamespace appKryo = new KryoNamespace.Builder()
.register(DummyGroup.class)
.register(KryoNamespaces.API)
.register(byte[].class)
.build();
private final Logger log = getLogger(getClass());
@Override
public void init(DeviceId deviceId, PipelinerContext context) {
this.serviceDirectory = context.directory();
this.deviceId = deviceId;
coreService = serviceDirectory.get(CoreService.class);
flowRuleService = serviceDirectory.get(FlowRuleService.class);
flowObjectiveStore = context.store();
driverId = coreService.registerApplication(
"org.onosproject.driver.OVSCorsaPipeline");
filters = Collections.newSetFromMap(new ConcurrentHashMap<Filter, Boolean>());
pendingVersatiles = Collections.newSetFromMap(
new ConcurrentHashMap<ForwardingObjective, Boolean>());
initializePipeline();
}
@Override
public void filter(FilteringObjective filteringObjective) {
if (filteringObjective.type() == FilteringObjective.Type.PERMIT) {
processFilter(filteringObjective,
filteringObjective.op() == Objective.Operation.ADD,
filteringObjective.appId());
} else {
fail(filteringObjective, ObjectiveError.UNSUPPORTED);
}
}
@Override
public void forward(ForwardingObjective fwd) {
Collection<FlowRule> rules;
FlowRuleOperations.Builder flowOpsBuilder = FlowRuleOperations.builder();
rules = processForward(fwd);
switch (fwd.op()) {
case ADD:
rules.stream()
.filter(rule -> rule != null)
.forEach(flowOpsBuilder::add);
break;
case REMOVE:
rules.stream()
.filter(rule -> rule != null)
.forEach(flowOpsBuilder::remove);
break;
default:
fail(fwd, ObjectiveError.UNKNOWN);
log.warn("Unknown forwarding type {}", fwd.op());
}
flowRuleService.apply(flowOpsBuilder.build(new FlowRuleOperationsContext() {
@Override
public void onSuccess(FlowRuleOperations ops) {
pass(fwd);
}
@Override
public void onError(FlowRuleOperations ops) {
fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED);
}
}));
}
@Override
public void next(NextObjective nextObjective) {
switch (nextObjective.type()) {
case SIMPLE:
Collection<TrafficTreatment> treatments = nextObjective.next();
if (treatments.size() != 1) {
log.error("Next Objectives of type Simple should only have a "
+ "single Traffic Treatment. Next Objective Id:{}", nextObjective.id());
fail(nextObjective, ObjectiveError.BADPARAMS);
return;
}
processSimpleNextObjective(nextObjective);
break;
case HASHED:
case BROADCAST:
case FAILOVER:
fail(nextObjective, ObjectiveError.UNSUPPORTED);
log.warn("Unsupported next objective type {}", nextObjective.type());
break;
default:
fail(nextObjective, ObjectiveError.UNKNOWN);
log.warn("Unknown next objective type {}", nextObjective.type());
}
}
private void pass(Objective obj) {
if (obj.context().isPresent()) {
obj.context().get().onSuccess(obj);
}
}
private void fail(Objective obj, ObjectiveError error) {
if (obj.context().isPresent()) {
obj.context().get().onError(obj, error);
}
}
private void initializePipeline() {
//Drop rules for both tables
TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder();
FlowRuleOperations.Builder ops = FlowRuleOperations.builder();
treatment.drop();
FlowRule rule = DefaultFlowRule.builder()
.forDevice(deviceId)
.withSelector(selector.build())
.withTreatment(treatment.build())
.withPriority(DROP_PRIORITY)
.fromApp(driverId)
.makePermanent()
.forTable(FILTER_TABLE)
.build();
ops = ops.add(rule);
rule = DefaultFlowRule.builder().forDevice(deviceId)
.withSelector(selector.build())
.withTreatment(treatment.build())
.withPriority(DROP_PRIORITY)
.fromApp(driverId)
.makePermanent()
.forTable(FIB_TABLE)
.build();
ops = ops.add(rule);
flowRuleService.apply(ops.build(new FlowRuleOperationsContext() {
@Override
public void onSuccess(FlowRuleOperations ops) {
log.info("Provisioned drop rules in both tables");
}
@Override
public void onError(FlowRuleOperations ops) {
log.info("Failed to provision drop rules");
}
}));
}
private void processFilter(FilteringObjective filt, boolean install,
ApplicationId applicationId) {
// This driver only processes filtering criteria defined with switch
// ports as the key
PortCriterion p; EthCriterion e = null; VlanIdCriterion v = null;
Collection<IPCriterion> ips = new ArrayList<IPCriterion>();
if (!filt.key().equals(Criteria.dummy()) &&
filt.key().type() == Criterion.Type.IN_PORT) {
p = (PortCriterion) filt.key();
} else {
log.warn("No key defined in filtering objective from app: {}. Not"
+ "processing filtering objective", applicationId);
fail(filt, ObjectiveError.UNKNOWN);
return;
}
// convert filtering conditions for switch-intfs into flowrules
FlowRuleOperations.Builder ops = FlowRuleOperations.builder();
for (Criterion c : filt.conditions()) {
if (c.type() == Criterion.Type.ETH_DST) {
e = (EthCriterion) c;
} else if (c.type() == Criterion.Type.VLAN_VID) {
v = (VlanIdCriterion) c;
} else if (c.type() == Criterion.Type.IPV4_DST) {
ips.add((IPCriterion) c);
} else {
log.error("Unsupported filter {}", c);
fail(filt, ObjectiveError.UNSUPPORTED);
return;
}
}
log.debug("adding Port/VLAN/MAC filtering rules in filter table: {}/{}/{}",
p.port(), v.vlanId(), e.mac());
TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder();
selector.matchInPort(p.port());
selector.matchVlanId(v.vlanId());
selector.matchEthDst(e.mac());
selector.matchEthType(Ethernet.TYPE_IPV4);
treatment.transition(FIB_TABLE);
FlowRule rule = DefaultFlowRule.builder()
.forDevice(deviceId)
.withSelector(selector.build())
.withTreatment(treatment.build())
.withPriority(DEFAULT_PRIORITY)
.fromApp(applicationId)
.makePermanent()
.forTable(FILTER_TABLE).build();
ops = ops.add(rule);
for (IPCriterion ipaddr : ips) {
log.debug("adding IP filtering rules in FIB table: {}", ipaddr.ip());
selector = DefaultTrafficSelector.builder();
treatment = DefaultTrafficTreatment.builder();
selector.matchEthType(Ethernet.TYPE_IPV4);
selector.matchIPDst(ipaddr.ip());
treatment.setOutput(PortNumber.CONTROLLER);
rule = DefaultFlowRule.builder()
.forDevice(deviceId)
.withSelector(selector.build())
.withTreatment(treatment.build())
.withPriority(HIGHEST_PRIORITY)
.fromApp(applicationId)
.makePermanent()
.forTable(FIB_TABLE).build();
ops = ops.add(rule);
}
// cache for later use
Filter filter = new Filter(p, e, v, ips);
filters.add(filter);
// apply any pending versatile forwarding objectives
for (ForwardingObjective fwd : pendingVersatiles) {
Collection<FlowRule> ret = processVersatilesWithFilters(filter, fwd);
for (FlowRule fr : ret) {
ops.add(fr);
}
}
ops = install ? ops.add(rule) : ops.remove(rule);
// apply filtering flow rules
flowRuleService.apply(ops.build(new FlowRuleOperationsContext() {
@Override
public void onSuccess(FlowRuleOperations ops) {
log.info("Applied filtering rules");
pass(filt);
}
@Override
public void onError(FlowRuleOperations ops) {
log.info("Failed to apply filtering rules");
fail(filt, ObjectiveError.FLOWINSTALLATIONFAILED);
}
}));
}
private Collection<FlowRule> processForward(ForwardingObjective fwd) {
switch (fwd.flag()) {
case SPECIFIC:
return processSpecific(fwd);
case VERSATILE:
return processVersatile(fwd);
default:
fail(fwd, ObjectiveError.UNKNOWN);
log.warn("Unknown forwarding flag {}", fwd.flag());
}
return Collections.emptySet();
}
/**
* SoftRouter has a single versatile table - the filter table. All versatile
* flow rules must include the filtering rules.
*
* @param fwd The forwarding objective of type versatile
* @return A collection of flow rules meant to be delivered to the flowrule
* subsystem. May return empty collection in case of failures.
*/
private Collection<FlowRule> processVersatile(ForwardingObjective fwd) {
if (filters.isEmpty()) {
pendingVersatiles.add(fwd);
return Collections.emptySet();
}
Collection<FlowRule> flowrules = new ArrayList<FlowRule>();
for (Filter filter : filters) {
flowrules.addAll(processVersatilesWithFilters(filter, fwd));
}
return flowrules;
}
private Collection<FlowRule> processVersatilesWithFilters(
Filter filt, ForwardingObjective fwd) {
log.info("Processing versatile forwarding objective");
Collection<FlowRule> flows = new ArrayList<FlowRule>();
TrafficSelector match = fwd.selector();
EthTypeCriterion ethType =
(EthTypeCriterion) match.getCriterion(Criterion.Type.ETH_TYPE);
if (ethType == null) {
log.error("Versatile forwarding objective must include ethType");
fail(fwd, ObjectiveError.UNKNOWN);
return Collections.emptySet();
}
if (ethType.ethType() == Ethernet.TYPE_ARP) {
// need to install ARP request & reply flow rules for each interface filter
// rule for ARP replies
TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
selector.matchInPort(filt.port());
selector.matchVlanId(filt.vlanId());
selector.matchEthDst(filt.mac());
selector.matchEthType(Ethernet.TYPE_ARP);
FlowRule.Builder ruleBuilder = DefaultFlowRule.builder()
.fromApp(fwd.appId())
.withPriority(fwd.priority())
.forDevice(deviceId)
.withSelector(selector.build())
.withTreatment(fwd.treatment())
.makePermanent()
.forTable(FILTER_TABLE);
flows.add(ruleBuilder.build());
//rule for ARP requests
selector = DefaultTrafficSelector.builder();
selector.matchInPort(filt.port());
selector.matchVlanId(filt.vlanId());
selector.matchEthDst(MacAddress.BROADCAST);
selector.matchEthType(Ethernet.TYPE_ARP);
ruleBuilder = DefaultFlowRule.builder()
.fromApp(fwd.appId())
.withPriority(fwd.priority())
.forDevice(deviceId)
.withSelector(selector.build())
.withTreatment(fwd.treatment())
.makePermanent()
.forTable(FILTER_TABLE);
flows.add(ruleBuilder.build());
return flows;
}
// not handling other versatile flows
return Collections.emptySet();
}
/**
* SoftRouter has a single specific table - the FIB Table. It emulates
* LPM matching of dstIP by using higher priority flows for longer prefixes.
* Flows are forwarded using flow-actions
*
* @param fwd The forwarding objective of type simple
* @return A collection of flow rules meant to be delivered to the flowrule
* subsystem. Typically the returned collection has a single flowrule.
* May return empty collection in case of failures.
*
*/
private Collection<FlowRule> processSpecific(ForwardingObjective fwd) {
log.debug("Processing specific forwarding objective");
TrafficSelector selector = fwd.selector();
EthTypeCriterion ethType =
(EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE);
// XXX currently supporting only the L3 unicast table
if (ethType == null || ethType.ethType() != Ethernet.TYPE_IPV4) {
fail(fwd, ObjectiveError.UNSUPPORTED);
return Collections.emptySet();
}
TrafficSelector filteredSelector =
DefaultTrafficSelector.builder()
.matchEthType(Ethernet.TYPE_IPV4)
.matchIPDst(((IPCriterion)
selector.getCriterion(Criterion.Type.IPV4_DST)).ip())
.build();
TrafficTreatment tt = null;
if (fwd.nextId() != null) {
NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId());
if (next == null) {
log.error("next-id {} does not exist in store", fwd.nextId());
return Collections.emptySet();
}
tt = appKryo.deserialize(next.data());
if (tt == null) {
log.error("Error in deserializing next-id {}", fwd.nextId());
return Collections.emptySet();
}
}
FlowRule.Builder ruleBuilder = DefaultFlowRule.builder()
.fromApp(fwd.appId())
.withPriority(fwd.priority())
.forDevice(deviceId)
.withSelector(filteredSelector)
.withTreatment(tt);
if (fwd.permanent()) {
ruleBuilder.makePermanent();
} else {
ruleBuilder.makeTemporary(fwd.timeout());
}
ruleBuilder.forTable(FIB_TABLE);
return Collections.singletonList(ruleBuilder.build());
}
/**
* Next Objectives are stored as dummy groups for retrieval later
* when Forwarding Objectives reference the next objective id. At that point
* the dummy group is fetched from the distributed store and the enclosed
* treatment is applied as a flow rule action.
*
* @param nextObjective the next objective of type simple
*/
private void processSimpleNextObjective(NextObjective nextObj) {
// Simple next objective has a single treatment (not a collection)
flowObjectiveStore.putNextGroup(nextObj.id(),
new DummyGroup(nextObj.next().iterator().next()));
}
private class Filter {
private PortCriterion port;
private VlanIdCriterion vlan;
private EthCriterion eth;
@SuppressWarnings("unused")
private Collection<IPCriterion> ips;
public Filter(PortCriterion p, EthCriterion e, VlanIdCriterion v,
Collection<IPCriterion> ips) {
this.eth = e;
this.port = p;
this.vlan = v;
this.ips = ips;
}
public PortNumber port() {
return port.port();
}
public VlanId vlanId() {
return vlan.vlanId();
}
public MacAddress mac() {
return eth.mac();
}
}
private class DummyGroup implements NextGroup {
TrafficTreatment nextActions;
public DummyGroup(TrafficTreatment next) {
this.nextActions = next;
}
@Override
public byte[] data() {
return appKryo.serialize(nextActions);
}
}
}
......@@ -27,17 +27,20 @@
impl="org.onosproject.driver.pipeline.OVSCorsaPipeline"/>
</driver>
<driver name="spring-open-cpqd" extends="default"
manufacturer="Stanford University, Ericsson Research and CPqD Research" hwVersion="OpenFlow 1.3 Reference Userspace Switch" swVersion=".*">
manufacturer="Stanford University, Ericsson Research and CPqD Research"
hwVersion="OpenFlow 1.3 Reference Userspace Switch" swVersion=".*">
<behaviour api="org.onosproject.net.behaviour.Pipeliner"
impl="org.onosproject.driver.pipeline.SpringOpenTTP"/>
</driver>
<driver name="spring-open" extends="default"
manufacturer="Dell " hwVersion="OpenFlow switch HW ver. 1.0" swVersion="OpenFlow switch SW ver. 1.0 and 1.3">
manufacturer="Dell " hwVersion="OpenFlow switch HW ver. 1.0"
swVersion="OpenFlow switch SW ver. 1.0 and 1.3">
<behaviour api="org.onosproject.net.behaviour.Pipeliner"
impl="org.onosproject.driver.pipeline.SpringOpenTTPDell"/>
</driver>
<driver name="linc-oe" extends="default"
manufacturer="FlowForwarding.org" hwVersion="Unknown" swVersion="LINC-OE OpenFlow Software Switch 1.1">
manufacturer="FlowForwarding.org" hwVersion="Unknown"
swVersion="LINC-OE OpenFlow Software Switch 1.1">
<behaviour api="org.onosproject.openflow.controller.driver.OpenFlowSwitchDriver"
impl="org.onosproject.driver.handshaker.OFOpticalSwitchImplLINC13"/>
</driver>
......@@ -45,12 +48,22 @@
<behaviour api="org.onosproject.net.behaviour.Pipeliner"
impl="org.onosproject.driver.pipeline.CorsaPipeline"/>
<behaviour api="org.onosproject.openflow.controller.driver.OpenFlowSwitchDriver"
impl="org.onosproject.driver.handshaker.OFCorsaSwitchDriver"/>
impl="org.onosproject.driver.handshaker.CorsaSwitchHandShaker"/>
</driver>
<driver name="ofdpa" extends="default"
manufacturer="Broadcom Corp." hwVersion="OF-DPA 1.0" swVersion="OF-DPA 1.0">
<behaviour api="org.onosproject.net.behaviour.Pipeliner"
impl="org.onosproject.driver.pipeline.OFDPA1Pipeline"/>
</driver>
<!-- The SoftRouter driver is meant to be used by any software/NPU based
~ switch that wishes to implement a simple 2-table router. ONOS needs to
~ be configured with the dpid of such a device to attach this driver
~ to the device.
-->
<driver name="softrouter" extends="default"
manufacturer="Various" hwVersion="various" swVersion="0.0.0">
<behaviour api="org.onosproject.net.behaviour.Pipeliner"
impl="org.onosproject.driver.pipeline.SoftRouterPipeline"/>
</driver>
</drivers>
......