Examples with FlowEntity org.opendaylight.genius.mdsalutil.FlowEntity used on opensource projects

Example 36 with FlowEntity

use of org.opendaylight.genius.mdsalutil.FlowEntity in project netvirt by opendaylight.

the class FloatingIPListener method buildDNATDeleteFlowEntity.

private FlowEntity buildDNATDeleteFlowEntity(BigInteger dpId, String internalIp, long routerId) {
    LOG.info("buildDNATDeleteFlowEntity : Bulding Delete DNAT Flow entity for ip {} ", internalIp);
    String flowRef = NatUtil.getFlowRef(dpId, NwConstants.DNAT_TABLE, routerId, internalIp);
    FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpId, NwConstants.DNAT_TABLE, flowRef, NatConstants.DEFAULT_DNAT_FLOW_PRIORITY, flowRef, 0, 0, NwConstants.COOKIE_DNAT_TABLE, null, null);
    return flowEntity;
}

Example 37 with FlowEntity

use of org.opendaylight.genius.mdsalutil.FlowEntity in project netvirt by opendaylight.

the class InterfaceStateEventListener method removeNatFlow.

private void removeNatFlow(BigInteger dpnId, short tableId, Long routerId, String ipAddress, int ipPort) {
    String switchFlowRef = NatUtil.getNaptFlowRef(dpnId, tableId, String.valueOf(routerId), ipAddress, ipPort);
    FlowEntity snatFlowEntity = NatUtil.buildFlowEntity(dpnId, tableId, switchFlowRef);
    mdsalManager.removeFlow(snatFlowEntity);
    LOG.debug("removeNatFlow : Removed the flow in table {} for the switch with the DPN ID {} for " + "router {} ip {} port {}", tableId, dpnId, routerId, ipAddress, ipPort);
}

Example 38 with FlowEntity

use of org.opendaylight.genius.mdsalutil.FlowEntity in project netvirt by opendaylight.

the class NaptEventHandler method buildAndInstallNatFlowsOptionalRpc.

private Future<RpcResult<AddFlowOutput>> buildAndInstallNatFlowsOptionalRpc(BigInteger dpnId, short tableId, long vpnId, long routerId, long bgpVpnId, SessionAddress actualSourceAddress, SessionAddress translatedSourceAddress, NAPTEntryEvent.Protocol protocol, String extGwMacAddress, boolean sendRpc) {
    LOG.debug("buildAndInstallNatFlowsOptionalRpc : Build and install table={} flow on dpnId {} and routerId {}", tableId, dpnId, routerId);
    // Build the flow for replacing the actual IP and port with the translated IP and port.
    int idleTimeout = 0;
    if (tableId == NwConstants.OUTBOUND_NAPT_TABLE) {
        idleTimeout = NatConstants.DEFAULT_NAPT_IDLE_TIMEOUT;
    }
    long intranetVpnId;
    if (bgpVpnId != NatConstants.INVALID_ID) {
        intranetVpnId = bgpVpnId;
    } else {
        intranetVpnId = routerId;
    }
    LOG.debug("buildAndInstallNatFlowsOptionalRpc : Intranet VPN ID {} Router ID {}", intranetVpnId, routerId);
    String translatedIp = translatedSourceAddress.getIpAddress();
    int translatedPort = translatedSourceAddress.getPortNumber();
    String actualIp = actualSourceAddress.getIpAddress();
    int actualPort = actualSourceAddress.getPortNumber();
    String switchFlowRef = NatUtil.getNaptFlowRef(dpnId, tableId, String.valueOf(routerId), actualIp, actualPort);
    FlowEntity snatFlowEntity = new FlowEntityBuilder().setDpnId(dpnId).setTableId(tableId).setFlowId(switchFlowRef).setPriority(NatConstants.DEFAULT_NAPT_FLOW_PRIORITY).setFlowName(NatConstants.NAPT_FLOW_NAME).setIdleTimeOut(idleTimeout).setHardTimeOut(0).setCookie(NatUtil.getCookieNaptFlow(routerId)).setMatchInfoList(buildAndGetMatchInfo(actualIp, actualPort, tableId, protocol, intranetVpnId)).setInstructionInfoList(buildAndGetSetActionInstructionInfo(translatedIp, translatedPort, intranetVpnId, vpnId, tableId, protocol, extGwMacAddress)).setSendFlowRemFlag(true).build();
    // Install flows using RPC to prevent race with future packet-out that depends on this flow
    Future<RpcResult<AddFlowOutput>> addFlowResult = null;
    if (sendRpc) {
        Flow flow = snatFlowEntity.getFlowBuilder().build();
        NodeRef nodeRef = getNodeRef(dpnId);
        FlowRef flowRef = getFlowRef(dpnId, flow);
        AddFlowInput addFlowInput = new AddFlowInputBuilder(flow).setFlowRef(flowRef).setNode(nodeRef).build();
        long startTime = System.currentTimeMillis();
        addFlowResult = salFlowServiceRpc.addFlow(addFlowInput);
        LOG.debug("buildAndInstallNatFlowsOptionalRpc : Time elapsed for salFlowServiceRpc table {}: {}ms ", tableId, System.currentTimeMillis() - startTime);
        // Keep flow installation through MDSAL as well to be able to handle switch failures
        startTime = System.currentTimeMillis();
        mdsalManager.installFlow(snatFlowEntity);
        LOG.trace("buildAndInstallNatFlowsOptionalRpc : Time Elapsed while installing table-{} " + "flow on DPN:{} for snat packet({},{}): {}ms", tableId, dpnId, actualSourceAddress.getIpAddress(), actualSourceAddress.getPortNumber(), System.currentTimeMillis() - startTime);
    } else {
        long startTime = System.currentTimeMillis();
        mdsalManager.syncInstallFlow(snatFlowEntity);
        LOG.trace("buildAndInstallNatFlowsOptionalRpc : Time Elapsed while installing table-{} " + "flow on DPN:{} for snat packet({},{}): {}ms", tableId, dpnId, actualSourceAddress.getIpAddress(), actualSourceAddress.getPortNumber(), System.currentTimeMillis() - startTime);
    }
    LOG.trace("buildAndInstallNatFlowsOptionalRpc : Exited");
    return addFlowResult;
}

Example 39 with FlowEntity

use of org.opendaylight.genius.mdsalutil.FlowEntity in project netvirt by opendaylight.

the class NaptFlowRemovedEventHandler method onFlowRemoved.

@Override
public void onFlowRemoved(FlowRemoved flowRemoved) {
    /*
        If the removed flow is from the OUTBOUND NAPT table :
        1) Get the ActionInfo of the flow.
        2) From the ActionInfo of the flow get the internal IP address, port and the protocol.
        3) Get the Metadata matching info of the flow.
        4) From the Metadata matching info of the flow get router ID.
        5) Querry the container intext-ip-port-map using the router ID
           and the internal IP address, port to get the external IP address, port
        6) Instantiate an NaptEntry event and populate the external IP address, port and the router ID.
        7) Place the NaptEntry event to the queue.
*/
    short tableId = flowRemoved.getTableId();
    RemovedFlowReason removedReasonFlag = flowRemoved.getReason();
    if (tableId == NwConstants.OUTBOUND_NAPT_TABLE && RemovedFlowReason.OFPRRIDLETIMEOUT.equals(removedReasonFlag)) {
        LOG.info("onFlowRemoved : triggered for table-{} entry", tableId);
        // Get the internal internal IP address and the port number from the IPv4 match.
        Ipv4Prefix internalIpv4Address = null;
        Layer3Match layer3Match = flowRemoved.getMatch().getLayer3Match();
        if (layer3Match instanceof Ipv4Match) {
            Ipv4Match internalIpv4Match = (Ipv4Match) layer3Match;
            internalIpv4Address = internalIpv4Match.getIpv4Source();
        }
        if (internalIpv4Address == null) {
            LOG.error("onFlowRemoved : Matching internal IP is null while retrieving the " + "value from the Outbound NAPT flow");
            return;
        }
        // Get the internal IP as a string
        String internalIpv4AddressAsString = internalIpv4Address.getValue();
        String[] internalIpv4AddressParts = internalIpv4AddressAsString.split("/");
        String internalIpv4HostAddress = null;
        if (internalIpv4AddressParts.length >= 1) {
            internalIpv4HostAddress = internalIpv4AddressParts[0];
        }
        // Get the protocol from the layer4 match
        NAPTEntryEvent.Protocol protocol = null;
        Integer internalPortNumber = null;
        Layer4Match layer4Match = flowRemoved.getMatch().getLayer4Match();
        if (layer4Match instanceof TcpMatch) {
            TcpMatchFields tcpMatchFields = (TcpMatchFields) layer4Match;
            internalPortNumber = tcpMatchFields.getTcpSourcePort().getValue();
            protocol = NAPTEntryEvent.Protocol.TCP;
        } else if (layer4Match instanceof UdpMatch) {
            UdpMatchFields udpMatchFields = (UdpMatchFields) layer4Match;
            internalPortNumber = udpMatchFields.getUdpSourcePort().getValue();
            protocol = NAPTEntryEvent.Protocol.UDP;
        }
        if (protocol == null) {
            LOG.error("onFlowRemoved : Matching protocol is null while retrieving the value " + "from the Outbound NAPT flow");
            return;
        }
        // Get the router ID from the metadata.
        Long routerId;
        BigInteger metadata = flowRemoved.getMatch().getMetadata().getMetadata();
        if (MetaDataUtil.getNatRouterIdFromMetadata(metadata) != 0) {
            routerId = MetaDataUtil.getNatRouterIdFromMetadata(metadata);
        } else {
            LOG.error("onFlowRemoved : Null exception while retrieving routerId");
            return;
        }
        final String internalIpPortKey = routerId + NatConstants.COLON_SEPARATOR + internalIpv4HostAddress + NatConstants.COLON_SEPARATOR + internalPortNumber;
        // Get the external IP address and the port from the model
        IpPortExternal ipPortExternal = NatUtil.getExternalIpPortMap(dataBroker, routerId, internalIpv4HostAddress, internalPortNumber.toString(), protocol);
        if (ipPortExternal == null) {
            LOG.error("onFlowRemoved : IpPortExternal not found, BGP vpn might be " + "associated with router");
            // router must be associated with BGP vpn ID
            long bgpVpnId = routerId;
            LOG.debug("onFlowRemoved : BGP VPN ID {}", bgpVpnId);
            String vpnName = NatUtil.getRouterName(dataBroker, bgpVpnId);
            String routerName = NatUtil.getRouterIdfromVpnInstance(dataBroker, vpnName);
            if (routerName == null) {
                LOG.error("onFlowRemoved : Unable to find router for VpnName {}", vpnName);
                return;
            }
            routerId = NatUtil.getVpnId(dataBroker, routerName);
            LOG.debug("onFlowRemoved : Router ID {}", routerId);
            ipPortExternal = NatUtil.getExternalIpPortMap(dataBroker, routerId, internalIpv4HostAddress, internalPortNumber.toString(), protocol);
            if (ipPortExternal == null) {
                LOG.error("onFlowRemoved : IpPortExternal is null while queried from the " + "model for routerId {}", routerId);
                return;
            }
        }
        String externalIpAddress = ipPortExternal.getIpAddress();
        int externalPortNumber = ipPortExternal.getPortNum();
        // Create an NAPT event and place it in the queue.
        NAPTEntryEvent naptEntryEvent = new NAPTEntryEvent(externalIpAddress, externalPortNumber, routerId, NAPTEntryEvent.Operation.DELETE, protocol, null, false, null);
        naptEventdispatcher.addFlowRemovedNaptEvent(naptEntryEvent);
        // Get the DPN ID from the Node
        InstanceIdentifier<Node> nodeRef = flowRemoved.getNode().getValue().firstIdentifierOf(Node.class);
        String dpn = nodeRef.firstKeyOf(Node.class).getId().getValue();
        BigInteger dpnId = getDpnId(dpn);
        String switchFlowRef = NatUtil.getNaptFlowRef(dpnId, tableId, String.valueOf(routerId), internalIpv4HostAddress, internalPortNumber);
        // Inform the MDSAL manager to inform about the flow removal.
        LOG.debug("onFlowRemoved : DPN ID {}, Metadata {}, SwitchFlowRef {}, " + "internalIpv4HostAddress{}", dpnId, routerId, switchFlowRef, internalIpv4AddressAsString);
        FlowEntity snatFlowEntity = NatUtil.buildFlowEntity(dpnId, tableId, switchFlowRef);
        long startTime = System.currentTimeMillis();
        mdsalManager.removeFlow(snatFlowEntity);
        LOG.debug("onFlowRemoved : Elapsed time fo deleting table-{} flow for snat ({}) session:{}ms", tableId, internalIpPortKey, (System.currentTimeMillis() - startTime));
        // Remove the SourceIP:Port key from the Napt packet handler map.
        naptPacketInHandler.removeIncomingPacketMap(internalIpPortKey);
        // Remove the mapping of internal fixed ip/port to external ip/port from the datastore.
        SessionAddress internalSessionAddress = new SessionAddress(internalIpv4HostAddress, internalPortNumber);
        naptManager.releaseIpExtPortMapping(routerId, internalSessionAddress, protocol);
        LOG.info("onFlowRemoved : exit");
    } else {
        LOG.debug("onFlowRemoved : Received flow removed notification due to flowdelete from switch for flowref");
    }
}

Example 40 with FlowEntity

use of org.opendaylight.genius.mdsalutil.FlowEntity in project netvirt by opendaylight.

the class SNATDefaultRouteProgrammer method buildDefNATFlowEntity.

private FlowEntity buildDefNATFlowEntity(BigInteger dpId, long bgpVpnId, long routerId) {
    InetAddress defaultIP = null;
    try {
        defaultIP = InetAddress.getByName("0.0.0.0");
    } catch (UnknownHostException e) {
        LOG.error("buildDefNATFlowEntity : Failed  to build FIB Table Flow for " + "Default Route to NAT table", e);
        return null;
    }
    List<MatchInfo> matches = new ArrayList<>();
    matches.add(MatchEthernetType.IPV4);
    // add match for default route "0.0.0.0/0"
    // matches.add(new MatchInfo(MatchFieldType.ipv4_dst, new long[] {
    // NatUtil.getIpAddress(defaultIP.getAddress()), 0 }));
    // add match for vrfid
    matches.add(new MatchMetadata(MetaDataUtil.getVpnIdMetadata(bgpVpnId), MetaDataUtil.METADATA_MASK_VRFID));
    List<InstructionInfo> instructions = new ArrayList<>();
    instructions.add(new InstructionGotoTable(NwConstants.PSNAT_TABLE));
    String flowRef = NatUtil.getFlowRef(dpId, NwConstants.L3_FIB_TABLE, defaultIP, routerId);
    FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpId, NwConstants.L3_FIB_TABLE, flowRef, NatConstants.DEFAULT_DNAT_FLOW_PRIORITY, flowRef, 0, 0, NwConstants.COOKIE_DNAT_TABLE, matches, instructions);
    return flowEntity;
}