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[ONOS-5114] Fix to send icmp packet from vm to gateway when floating is assigned

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Change-Id: Ia8ba62cfa38ee56a0f8d40545f728e47a902082c
This commit is contained in:
Daniel Park 2016-08-26 14:31:33 +09:00
parent aac5888bdd
commit a8d896cbb6
2 changed files with 62 additions and 0 deletions
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2
apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/Constants.java
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@ -59,6 +59,8 @@ public final class Constants {
public static final int TUNNELTAG_RULE_PRIORITY = 30000;
public static final int ACL_RULE_PRIORITY = 30000;
public static final int EW_ROUTING_RULE_PRIORITY = 28000;
public static final int GATEWAY_ICMP_PRIORITY = 43000;
public static final int ROUTING_RULE_PRIORITY = 25000;
public static final int FLOATING_RULE_PRIORITY = 42000;
public static final int PNAT_RULE_PRIORITY = 26000;

60
apps/openstacknetworking/routing/src/main/java/org/onosproject/openstacknetworking/routing/OpenstackRoutingManager.java
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@ -23,6 +23,7 @@ import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferenceCardinality;
import org.apache.felix.scr.annotations.Service;
import org.onlab.packet.Ethernet;
import org.onlab.packet.IPv4;
import org.onlab.packet.Ip4Address;
import org.onlab.packet.IpPrefix;
import org.onlab.packet.MacAddress;
@ -157,6 +158,8 @@ public class OpenstackRoutingManager extends AbstractVmHandler implements Openst
return;
}
setGatewayIcmp(Ip4Address.valueOf(openstackService.subnet(routerIface.subnetId()).gatewayIp()));
setRoutes(osRouter, Optional.empty());
if (osRouter.gatewayExternalInfo().externalFixedIps().size() > 0) {
String subnetId = osPort.fixedIps().keySet().stream().findFirst().get();
@ -176,13 +179,66 @@ public class OpenstackRoutingManager extends AbstractVmHandler implements Openst
OpenstackSubnet osSubnet = openstackService.subnet(routerIface.subnetId());
OpenstackNetwork osNet = openstackService.network(osSubnet.networkId());
unsetGatewayIcmp(Ip4Address.valueOf(openstackService.subnet(routerIface.subnetId()).gatewayIp()));
unsetRoutes(osRouter, osSubnet);
if (osRouter.gatewayExternalInfo().externalFixedIps().size() > 0) {
unsetExternalConnection(osRouter, osNet.id());
}
log.info("Disconnected {} from router {}", osSubnet.cidr(), osRouter.name());
}
private void setGatewayIcmp(Ip4Address gatewayIp) {
if (gatewayIp == null) {
return;
}
gatewayService.getGatewayDeviceIds().stream().forEach(deviceId -> {
populateGatewayIcmpRule(gatewayIp, deviceId);
});
}
private void populateGatewayIcmpRule(Ip4Address gatewayIp, DeviceId deviceId) {
TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder();
TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder();
sBuilder.matchEthType(Ethernet.TYPE_IPV4)
.matchIPProtocol(IPv4.PROTOCOL_ICMP)
.matchIPDst(gatewayIp.toIpPrefix());
tBuilder.setOutput(PortNumber.CONTROLLER);
ForwardingObjective fo = DefaultForwardingObjective.builder()
.withSelector(sBuilder.build())
.withTreatment(tBuilder.build())
.withPriority(GATEWAY_ICMP_PRIORITY)
.withFlag(ForwardingObjective.Flag.VERSATILE)
.fromApp(appId)
.add();
flowObjectiveService.forward(deviceId, fo);
}
private void unsetGatewayIcmp(Ip4Address gatewayIp) {
if (gatewayIp == null) {
return;
}
gatewayService.getGatewayDeviceIds().forEach(deviceId -> {
removeGatewayIcmpRule(gatewayIp, deviceId);
});
}
private void removeGatewayIcmpRule(Ip4Address gatewayIp, DeviceId deviceId) {
TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder();
sBuilder.matchEthType(Ethernet.TYPE_IPV4)
.matchIPProtocol(IPv4.PROTOCOL_ICMP)
.matchIPDst(gatewayIp.toIpPrefix());
RulePopulatorUtil.removeRule(flowObjectiveService, appId, deviceId, sBuilder.build(),
ForwardingObjective.Flag.VERSATILE, GATEWAY_ICMP_PRIORITY);
}
private void setExternalConnection(OpenstackRouter osRouter, String osSubNetId) {
if (!osRouter.gatewayExternalInfo().isEnablePnat()) {
log.debug("Source NAT is disabled");
@ -462,6 +518,10 @@ public class OpenstackRoutingManager extends AbstractVmHandler implements Openst
.filter(osPort -> osPort.deviceOwner().equals(DEVICE_OWNER_ROUTER_INTERFACE))
.forEach(osPort -> {
OpenstackRouter osRouter = openstackRouter(osPort.deviceId());
setGatewayIcmp(Ip4Address.valueOf(openstackService
.subnet(osPort.fixedIps().keySet().stream().findAny().get()).gatewayIp()));
setRoutes(osRouter, Optional.empty());
if (osRouter.gatewayExternalInfo().externalFixedIps().size() > 0) {
String subnetId = osPort.fixedIps().keySet().stream().findFirst().get();