Examples with PRIORITY_ARP_GATEWAY_RULE org.onosproject.openstacknetworking.api.Constants.PRIORITY_ARP_GATEWAY_RULE used on opensource projects

Example 1 with PRIORITY_ARP_GATEWAY_RULE

use of org.onosproject.openstacknetworking.api.Constants.PRIORITY_ARP_GATEWAY_RULE in project onos by opennetworkinglab.

the class OpenstackSwitchingArpHandler method setFakeGatewayArpRule.

/**
 * Installs flow rules which convert ARP request packet into ARP reply
 * by adding a fake gateway MAC address as Source Hardware Address.
 *
 * @param osSubnet  openstack subnet
 * @param network   openstack network
 * @param install   flag which indicates whether to install rule or remove rule
 * @param osNode    openstack node
 */
private void setFakeGatewayArpRule(Subnet osSubnet, Network network, boolean install, OpenstackNode osNode) {
    if (ARP_BROADCAST_MODE.equals(getArpMode())) {
        Type netType = osNetworkService.networkType(network.getId());
        String gateway = osSubnet.getGateway();
        if (gateway == null) {
            return;
        }
        TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder();
        if (netType == VLAN) {
            sBuilder.matchVlanId(VlanId.vlanId(network.getProviderSegID()));
        } else if (netType == VXLAN || netType == GRE || netType == GENEVE) {
            // different networks
            if (!install) {
                long numOfDupGws = osNetworkService.subnets().stream().filter(s -> !s.getId().equals(osSubnet.getId())).filter(s -> s.getGateway() != null).filter(s -> s.getGateway().equals(osSubnet.getGateway())).count();
                if (numOfDupGws > 0) {
                    return;
                }
            }
        }
        sBuilder.matchEthType(EthType.EtherType.ARP.ethType().toShort()).matchArpOp(ARP.OP_REQUEST).matchArpTpa(Ip4Address.valueOf(gateway));
        if (osNode == null) {
            osNodeService.completeNodes(COMPUTE).forEach(n -> {
                Device device = deviceService.getDevice(n.intgBridge());
                TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder();
                if (netType == VLAN) {
                    tBuilder.popVlan();
                }
                tBuilder.extension(buildMoveEthSrcToDstExtension(device), device.id()).extension(buildMoveArpShaToThaExtension(device), device.id()).extension(buildMoveArpSpaToTpaExtension(device), device.id()).setArpOp(ARP.OP_REPLY).setArpSha(MacAddress.valueOf(gatewayMac)).setArpSpa(Ip4Address.valueOf(gateway)).setEthSrc(MacAddress.valueOf(gatewayMac)).setOutput(PortNumber.IN_PORT);
                osFlowRuleService.setRule(appId, n.intgBridge(), sBuilder.build(), tBuilder.build(), PRIORITY_ARP_GATEWAY_RULE, ARP_TABLE, install);
            });
        } else {
            Device device = deviceService.getDevice(osNode.intgBridge());
            TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder();
            if (netType == VLAN) {
                tBuilder.popVlan();
            }
            tBuilder.extension(buildMoveEthSrcToDstExtension(device), device.id()).extension(buildMoveArpShaToThaExtension(device), device.id()).extension(buildMoveArpSpaToTpaExtension(device), device.id()).setArpOp(ARP.OP_REPLY).setArpSha(MacAddress.valueOf(gatewayMac)).setArpSpa(Ip4Address.valueOf(gateway)).setOutput(PortNumber.IN_PORT);
            osFlowRuleService.setRule(appId, osNode.intgBridge(), sBuilder.build(), tBuilder.build(), PRIORITY_ARP_GATEWAY_RULE, ARP_TABLE, install);
        }
    }
}