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Avantika-Huawei
Committed by Gerrit Code Review
a4f66f62 1 parent dbdf7723

[ONOS-4164] Flow decode in bgpcep flow provider 

Change-Id: Ib64529e37ccff5b392a2ccb24341b5a780408f6c
Inline Side-by-side
Showing 1 changed file with 107 additions and 72 deletions
......@@ -26,6 +26,7 @@ import org.apache.felix.scr.annotations.ReferenceCardinality;
import org.onlab.packet.Ip4Address;
import org.onlab.packet.IpAddress;
import org.onlab.packet.IpPrefix;
import org.onlab.packet.MplsLabel;
import org.onosproject.bgp.controller.BgpController;
import org.onosproject.cfg.ComponentConfigService;
import org.onosproject.core.ApplicationId;
......@@ -35,20 +36,31 @@ import org.onosproject.incubator.net.tunnel.Tunnel;
import org.onosproject.incubator.net.tunnel.TunnelId;
import org.onosproject.incubator.net.tunnel.TunnelService;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.Device;
import org.onosproject.net.DeviceId;
import org.onosproject.net.Link;
import org.onosproject.net.Path;
import org.onosproject.net.PortNumber;
import org.onosproject.net.device.DeviceService;
import org.onosproject.net.flow.FlowRule;
import org.onosproject.net.flow.FlowRuleBatchOperation;
import org.onosproject.net.flow.FlowRuleProvider;
import org.onosproject.net.flow.FlowRuleProviderRegistry;
import org.onosproject.net.flow.FlowRuleProviderService;
import org.onosproject.net.flow.TrafficSelector;
import org.onosproject.net.flow.criteria.Criterion;
import org.onosproject.net.flow.criteria.IPCriterion;
import org.onosproject.net.flow.criteria.MetadataCriterion;
import org.onosproject.net.flow.criteria.MplsBosCriterion;
import org.onosproject.net.flow.criteria.MplsCriterion;
import org.onosproject.net.flow.criteria.PortCriterion;
import org.onosproject.net.flow.criteria.TcpPortCriterion;
import org.onosproject.net.flow.criteria.TunnelIdCriterion;
import org.onosproject.net.flowobjective.Objective;
import org.onosproject.net.provider.AbstractProvider;
import org.onosproject.net.provider.ProviderId;
import org.onosproject.net.resource.ResourceService;
import org.onosproject.pcep.controller.PccId;
import org.onosproject.pcep.controller.PcepClient;
import org.onosproject.pcep.controller.PcepClientController;
import org.onosproject.pcepio.exceptions.PcepParseException;
......@@ -106,12 +118,16 @@ public class BgpcepFlowRuleProvider extends AbstractProvider
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected TunnelService tunnelService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected DeviceService deviceService;
private FlowRuleProviderService providerService;
private PcepLabelObject labelObj;
public static final int OUT_LABEL_TYPE = 0;
public static final int IN_LABEL_TYPE = 1;
public static final long IDENTIFIER_SET = 0x100000000L;
public static final long SET = 0xFFFFFFFFL;
private static final String LSRID = "lsrId";
/**
* Creates a BgpFlow host provider.
......@@ -138,34 +154,88 @@ public class BgpcepFlowRuleProvider extends AbstractProvider
@Override
public void applyFlowRule(FlowRule... flowRules) {
for (FlowRule flowRule : flowRules) {
applyRule(flowRule);
processRule(flowRule, Objective.Operation.ADD);
}
}
private void applyRule(FlowRule flowRule) {
flowRule.selector().criteria()
.forEach(c -> {
// If Criterion type is MPLS_LABEL, push labels through PCEP client
if (c.type() == Criterion.Type.MPLS_LABEL) {
PcepClient pcc;
/** PCC client session is based on LSR ID, get the LSR ID for a specific device to
push the flows */
//TODO: commented code has dependency with other patch
/* Set<TeRouterId> lrsIds = resourceService.getAvailableResourceValues(Resources
.discrete(flowRule.deviceId()).id(), TeRouterId.class);
lrsIds.forEach(lsrId ->
{
if (pcepController.getClient(PccId.pccId(lsrId)) != null) {
pcc = pcepController.getClient(PccId.pccId(lsrId));
}
});*/
// TODO: Build message and send the PCEP label message via PCEP client
} else {
// TODO: Get the BGP peer based on deviceId and send the message
}
});
@Override
public void removeFlowRule(FlowRule... flowRules) {
for (FlowRule flowRule : flowRules) {
processRule(flowRule, Objective.Operation.REMOVE);
}
}
private void processRule(FlowRule flowRule, Objective.Operation type) {
MplsLabel mplsLabel = null;
IpPrefix ip4Prefix = null;
PortNumber port = null;
TunnelId tunnelId = null;
long labelType = 0;
boolean bottomOfStack = false;
int srcPort = 0;
int dstPort = 0;
TrafficSelector selector = flowRule.selector();
for (Criterion c : selector.criteria()) {
switch (c.type()) {
case MPLS_LABEL:
MplsCriterion lc = (MplsCriterion) c;
mplsLabel = lc.label();
break;
case IPV4_SRC:
IPCriterion ipCriterion = (IPCriterion) c;
ip4Prefix = ipCriterion.ip().getIp4Prefix();
break;
case IN_PORT:
PortCriterion inPort = (PortCriterion) c;
port = inPort.port();
break;
case TCP_SRC:
TcpPortCriterion srcTcpPort = (TcpPortCriterion) c;
srcPort = srcTcpPort.tcpPort().toInt();
break;
case TCP_DST:
TcpPortCriterion dstTcpPort = (TcpPortCriterion) c;
dstPort = dstTcpPort.tcpPort().toInt();
break;
case TUNNEL_ID:
TunnelIdCriterion tc = (TunnelIdCriterion) c;
tunnelId = TunnelId.valueOf(String.valueOf(tc.tunnelId()));
break;
case METADATA:
MetadataCriterion metadata = (MetadataCriterion) c;
labelType = metadata.metadata();
break;
case MPLS_BOS:
MplsBosCriterion mplsBos = (MplsBosCriterion) c;
bottomOfStack = mplsBos.mplsBos();
break;
default:
break;
}
}
checkNotNull(mplsLabel);
LabelResourceId label = LabelResourceId.labelResourceId(mplsLabel.toInt());
try {
if (tunnelId != null) {
pushLocalLabels(flowRule.deviceId(), label, port, tunnelId, bottomOfStack, labelType, type);
return;
}
if (srcPort != 0 && dstPort != 0) {
pushAdjacencyLabel(flowRule.deviceId(), label, PortNumber.portNumber(srcPort),
PortNumber.portNumber(dstPort), type);
return;
}
pushGlobalNodeLabel(flowRule.deviceId(), label, ip4Prefix, type, bottomOfStack);
} catch (PcepParseException e) {
log.error("Exception occured while sending label message to PCC {}", e.getMessage());
}
}
/**
......@@ -174,19 +244,13 @@ public class BgpcepFlowRuleProvider extends AbstractProvider
* @return PCEP client
*/
private PcepClient getPcepClient(DeviceId deviceId) {
PcepClient pcc;
//TODO: commented code has dependency
/* Set<TeRouterId> lrsIds = resourceService.getAvailableResourceValues(Resources
.discrete(deviceId()).id(), TeRouterId.class);
lrsIds.forEach(lsrId ->
{
if (pcepController.getClient(PccId.pccId(lsrId)) != null) {
pcc = pcepController.getClient(PccId.pccId(lsrId));
return pcc
}
});*/
return null;
Device device = deviceService.getDevice(deviceId);
// In future projections instead of annotations will be used to fetch LSR ID.
String lsrId = device.annotations().value(LSRID);
PcepClient pcc = pcepController.getClient(PccId.pccId(IpAddress.valueOf(lsrId)));
return pcc;
}
//Pushes node labels to the specified device.
......@@ -195,7 +259,6 @@ public class BgpcepFlowRuleProvider extends AbstractProvider
checkNotNull(deviceId);
checkNotNull(labelId);
checkNotNull(ipPrefix);
checkNotNull(type);
PcepClient pc = getPcepClient(deviceId);
......@@ -206,6 +269,11 @@ public class BgpcepFlowRuleProvider extends AbstractProvider
LinkedList<PcepLabelUpdate> labelUpdateList = new LinkedList<>();
if (ipPrefix == null) {
// Pushing self node label to device.
IpPrefix.valueOf(pc.getPccId().ipAddress(), 32);
}
PcepFecObjectIPv4 fecObject = pc.factory().buildFecObjectIpv4()
.setNodeID(ipPrefix.address().getIp4Address().toInt())
.build();
......@@ -484,39 +552,6 @@ public class BgpcepFlowRuleProvider extends AbstractProvider
}
@Override
public void removeFlowRule(FlowRule... flowRules) {
for (FlowRule flowRule : flowRules) {
removeRule(flowRule);
}
}
private void removeRule(FlowRule flowRule) {
flowRule.selector().criteria()
.forEach(c -> {
// If Criterion type is MPLS_LABEL, remove the specified flow rules
if (c.type() == Criterion.Type.MPLS_LABEL) {
PcepClient pcc;
/** PCC client session is based on LSR ID, get the LSR ID for a specific device to
push the flows */
//TODO: commented code has dependency with other patch
/* Set<TeRouterId> lrsIds = resourceService.getAvailableResourceValues(Resources
.discrete(flowRule.deviceId()).id(), TeRouterId.class);
lrsIds.forEach(lsrId ->
{
if (pcepController.getClient(PccId.pccId(lsrId)) != null) {
pcc = pcepController.getClient(PccId.pccId(lsrId));
}
});*/
// TODO: Build message and send the PCEP label message via PCEP client
} else {
// TODO: Get the BGP peer based on deviceId and send the message
}
});
}
@Override
public void removeRulesById(ApplicationId id, FlowRule... flowRules) {
// TODO
removeFlowRule(flowRules);
......