2 * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.vpnservice.dhcpservice;
10 import java.io.ByteArrayOutputStream;
11 import java.io.IOException;
12 import java.math.BigInteger;
13 import java.net.InetAddress;
14 import java.net.UnknownHostException;
15 import java.util.Arrays;
16 import java.util.Iterator;
17 import java.util.List;
18 import java.util.concurrent.ExecutionException;
19 import java.util.concurrent.Future;
21 import org.apache.commons.lang3.tuple.ImmutablePair;
22 import org.apache.commons.net.util.SubnetUtils;
23 import org.apache.commons.net.util.SubnetUtils.SubnetInfo;
24 import org.opendaylight.controller.liblldp.EtherTypes;
25 import org.opendaylight.controller.liblldp.NetUtils;
26 import org.opendaylight.controller.liblldp.PacketException;
27 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
28 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
29 import org.opendaylight.vpnservice.dhcpservice.api.DHCP;
30 import org.opendaylight.vpnservice.dhcpservice.api.DHCPConstants;
31 import org.opendaylight.vpnservice.dhcpservice.api.DHCPMConstants;
32 import org.opendaylight.vpnservice.dhcpservice.api.DHCPUtils;
33 import org.opendaylight.vpnservice.mdsalutil.MDSALUtil;
34 import org.opendaylight.vpnservice.mdsalutil.MetaDataUtil;
35 import org.opendaylight.vpnservice.mdsalutil.NwConstants;
36 import org.opendaylight.vpnservice.mdsalutil.packet.Ethernet;
37 import org.opendaylight.vpnservice.mdsalutil.packet.IEEE8021Q;
38 import org.opendaylight.vpnservice.mdsalutil.packet.IPProtocols;
39 import org.opendaylight.vpnservice.mdsalutil.packet.IPv4;
40 import org.opendaylight.vpnservice.mdsalutil.packet.UDP;
41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
42 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnet.attributes.HostRoutes;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
48 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketInReason;
49 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingListener;
50 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingService;
51 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived;
52 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.SendToController;
53 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.TransmitPacketInput;
54 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.GetEgressActionsForInterfaceInputBuilder;
55 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.GetEgressActionsForInterfaceOutput;
56 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.GetInterfaceFromIfIndexInput;
57 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.GetInterfaceFromIfIndexInputBuilder;
58 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.GetInterfaceFromIfIndexOutput;
59 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rpcs.rev151003.OdlInterfaceRpcService;
60 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
61 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.InstanceIdentifierBuilder;
62 import org.opendaylight.yangtools.yang.common.RpcResult;
63 import org.slf4j.Logger;
64 import org.slf4j.LoggerFactory;
66 import com.google.common.base.Optional;
68 public class DhcpPktHandler implements AutoCloseable, PacketProcessingListener {
70 private static final Logger LOG = LoggerFactory.getLogger(DhcpPktHandler.class);
71 private final DataBroker dataBroker;
72 private final DhcpManager dhcpMgr;
73 private OdlInterfaceRpcService interfaceManagerRpc;
74 private boolean computeUdpChecksum = true;
75 private PacketProcessingService pktService;
76 private DhcpExternalTunnelManager dhcpExternalTunnelManager;
78 public DhcpPktHandler(final DataBroker broker, final DhcpManager dhcpManager, final DhcpExternalTunnelManager dhcpExternalTunnelManager) {
79 this.dhcpExternalTunnelManager = dhcpExternalTunnelManager;
80 this.dataBroker = broker;
81 dhcpMgr = dhcpManager;
84 //TODO: Handle this in a separate thread
86 public void onPacketReceived(PacketReceived packet) {
87 Class<? extends PacketInReason> pktInReason = packet.getPacketInReason();
88 if (isPktInReasonSendtoCtrl(pktInReason)) {
89 byte[] inPayload = packet.getPayload();
90 Ethernet ethPkt = new Ethernet();
92 ethPkt.deserialize(inPayload, 0, inPayload.length * NetUtils.NumBitsInAByte);
93 } catch (Exception e) {
94 LOG.warn("Failed to decode DHCP Packet {}", e);
95 LOG.trace("Received packet {}", packet);
100 pktIn = getDhcpPktIn(ethPkt);
102 LOG.trace("DHCPPkt received: {}", pktIn);
103 LOG.trace("Received Packet: {}", packet);
104 BigInteger metadata = packet.getMatch().getMetadata().getMetadata();
105 long portTag = MetaDataUtil.getLportFromMetadata(metadata).intValue();
106 String macAddress = DHCPUtils.byteArrayToString(ethPkt.getSourceMACAddress());
107 BigInteger tunnelId = packet.getMatch().getTunnel() == null ? null : packet.getMatch().getTunnel().getTunnelId();
108 String interfaceName = getInterfaceNameFromTag(portTag);
109 ImmutablePair<BigInteger, String> pair = getDpnIdPhysicalAddressFromInterfaceName(interfaceName);
110 DHCP replyPkt = handleDhcpPacket(pktIn, interfaceName, macAddress, tunnelId);
111 byte[] pktOut = getDhcpPacketOut(replyPkt, ethPkt, pair.getRight());
112 sendPacketOut(pktOut, pair.getLeft(), interfaceName, tunnelId);
114 } catch (Exception e) {
115 LOG.warn("Failed to get DHCP Reply");
116 LOG.trace("Reason for failure {}", e);
121 private void sendPacketOut(byte[] pktOut, BigInteger dpnId, String interfaceName, BigInteger tunnelId) {
122 LOG.trace("Sending packet out DpId {}, portId {}, vlanId {}, interfaceName {}", dpnId, interfaceName);
123 List<Action> action = getEgressAction(interfaceName, tunnelId);
124 TransmitPacketInput output = MDSALUtil.getPacketOut(action, pktOut, dpnId);
125 LOG.trace("Transmitting packet: {}",output);
126 this.pktService.transmitPacket(output);
129 private DHCP handleDhcpPacket(DHCP dhcpPkt, String interfaceName, String macAddress, BigInteger tunnelId) {
130 LOG.debug("DHCP pkt rcvd {}", dhcpPkt);
131 byte msgType = dhcpPkt.getMsgType();
132 if (msgType == DHCPConstants.MSG_DECLINE) {
133 LOG.debug("DHCPDECLINE received");
135 } else if (msgType == DHCPConstants.MSG_RELEASE) {
136 LOG.debug("DHCPRELEASE received");
140 if (tunnelId != null) {
141 nPort = dhcpExternalTunnelManager.readVniMacToPortCache(tunnelId, macAddress);
143 nPort = getNeutronPort(interfaceName);
145 Subnet nSubnet = getNeutronSubnet(nPort);
146 DhcpInfo dhcpInfo = getDhcpInfo(nPort, nSubnet);
147 LOG.trace("NeutronPort: {} \n NeutronSubnet: {}, dhcpInfo{}",nPort, nSubnet, dhcpInfo);
149 if (dhcpInfo != null) {
150 if (msgType == DHCPConstants.MSG_DISCOVER) {
151 reply = getReplyToDiscover(dhcpPkt, dhcpInfo);
152 } else if (msgType == DHCPConstants.MSG_REQUEST) {
153 reply = getReplyToRequest(dhcpPkt, dhcpInfo);
160 private DhcpInfo getDhcpInfo(Port nPort, Subnet nSubnet) {
161 DhcpInfo dhcpInfo = null;
162 if( (nPort != null) && (nSubnet != null) ) {
163 String clientIp = nPort.getFixedIps().get(0).getIpAddress().getIpv4Address().getValue();
164 String serverIp = nSubnet.getGatewayIp().getIpv4Address().getValue();
165 List<IpAddress> dnsServers = nSubnet.getDnsNameservers();
166 dhcpInfo = new DhcpInfo();
167 dhcpInfo.setClientIp(clientIp).setServerIp(serverIp)
168 .setCidr(nSubnet.getCidr()).setHostRoutes(nSubnet.getHostRoutes())
169 .setDnsServersIpAddrs(dnsServers).setGatewayIp(serverIp);
174 private Subnet getNeutronSubnet(Port nPort) {
175 return dhcpMgr.getNeutronSubnet(nPort);
178 private Port getNeutronPort(String interfaceName) {
179 return dhcpMgr.getNeutronPort(interfaceName);
182 private DHCP getDhcpPktIn(Ethernet actualEthernetPacket) {
183 Ethernet ethPkt = actualEthernetPacket;
184 if (ethPkt.getEtherType() == (short)NwConstants.ETHTYPE_802_1Q) {
185 ethPkt = (Ethernet)ethPkt.getPayload();
187 if (ethPkt.getPayload() instanceof IPv4) {
188 IPv4 ipPkt = (IPv4) ethPkt.getPayload();
189 if (ipPkt.getPayload() instanceof UDP) {
190 UDP udpPkt = (UDP) ipPkt.getPayload();
191 if ((udpPkt.getSourcePort() == DHCPMConstants.dhcpClientPort)
192 && (udpPkt.getDestinationPort() == DHCPMConstants.dhcpServerPort)) {
193 LOG.trace("Matched dhcpClientPort and dhcpServerPort");
194 byte[] rawDhcpPayload = udpPkt.getRawPayload();
195 DHCP reply = new DHCP();
197 reply.deserialize(rawDhcpPayload, 0, rawDhcpPayload.length);
198 } catch (PacketException e) {
199 LOG.warn("Failed to deserialize DHCP pkt");
200 LOG.trace("Reason for failure {}", e);
210 DHCP getReplyToDiscover(DHCP dhcpPkt, DhcpInfo dhcpInfo) {
211 DHCP reply = new DHCP();
212 reply.setOp(DHCPConstants.BOOTREPLY);
213 reply.setHtype(dhcpPkt.getHtype());
214 reply.setHlen(dhcpPkt.getHlen());
215 reply.setHops((byte) 0);
216 reply.setXid(dhcpPkt.getXid());
217 reply.setSecs((short) 0);
219 reply.setYiaddr(dhcpInfo.getClientIp());
220 reply.setSiaddr(dhcpInfo.getServerIp());
222 reply.setFlags(dhcpPkt.getFlags());
223 reply.setGiaddr(dhcpPkt.getGiaddr());
224 reply.setChaddr(dhcpPkt.getChaddr());
226 reply.setMsgType(DHCPConstants.MSG_OFFER);
227 if(dhcpPkt.containsOption(DHCPConstants.OPT_PARAMETER_REQUEST_LIST)) {
228 setParameterListOptions(dhcpPkt, reply, dhcpInfo);
230 setCommonOptions(reply, dhcpInfo);
234 DHCP getReplyToRequest(DHCP dhcpPkt, DhcpInfo dhcpInfo) {
235 boolean sendAck = false;
236 byte[] requestedIp = null;
237 DHCP reply = new DHCP();
238 reply.setOp(DHCPConstants.BOOTREPLY);
239 reply.setHtype(dhcpPkt.getHtype());
240 reply.setHlen(dhcpPkt.getHlen());
241 reply.setHops((byte) 0);
242 reply.setXid(dhcpPkt.getXid());
243 reply.setSecs((short) 0);
245 reply.setFlags(dhcpPkt.getFlags());
246 reply.setGiaddr(dhcpPkt.getGiaddr());
247 reply.setChaddr(dhcpPkt.getChaddr());
248 byte[] allocatedIp = DHCPUtils.strAddrToByteArray(dhcpInfo.getClientIp());
249 if(Arrays.equals(allocatedIp, dhcpPkt.getCiaddr())) {
250 //This means a renew request
253 requestedIp = dhcpPkt.getOptionBytes(DHCPConstants.OPT_REQUESTED_ADDRESS);
254 sendAck = Arrays.equals(allocatedIp, requestedIp);
258 reply.setCiaddr(dhcpPkt.getCiaddr());
259 reply.setYiaddr(dhcpInfo.getClientIp());
260 reply.setSiaddr(dhcpInfo.getServerIp());
261 reply.setMsgType(DHCPConstants.MSG_ACK);
262 if(dhcpPkt.containsOption(DHCPConstants.OPT_PARAMETER_REQUEST_LIST)) {
263 setParameterListOptions(dhcpPkt, reply, dhcpInfo);
265 setCommonOptions(reply, dhcpInfo);
268 reply.setMsgType(DHCPConstants.MSG_NAK);
273 protected byte[] getDhcpPacketOut(DHCP reply, Ethernet etherPkt, String phyAddrees) {
276 * DECLINE or RELEASE don't result in reply packet
280 LOG.debug("Sending DHCP Pkt {}", reply);
282 UDP udpPkt = new UDP();
285 rawPkt = reply.serialize();
286 } catch (PacketException e2) {
287 // TODO Auto-generated catch block
288 e2.printStackTrace();
291 udpPkt.setRawPayload(rawPkt);
292 udpPkt.setDestinationPort(DHCPMConstants.dhcpClientPort);
293 udpPkt.setSourcePort(DHCPMConstants.dhcpServerPort);
294 udpPkt.setLength((short) (rawPkt.length + 8));
296 IPv4 ip4Reply = new IPv4();
298 rawPkt = udpPkt.serialize();
299 } catch (PacketException e) {
300 // TODO Auto-generated catch block
305 if(this.computeUdpChecksum) {
306 checkSum = computeChecksum(rawPkt, reply.getSiaddr(),
307 NetUtils.intToByteArray4(DHCPMConstants.BCAST_IP));
309 udpPkt.setChecksum(checkSum);
310 ip4Reply.setPayload(udpPkt);
311 ip4Reply.setProtocol(IPProtocols.UDP.byteValue());
312 ip4Reply.setSourceAddress(reply.getSiaddrAsInetAddr());
313 ip4Reply.setDestinationAddress(DHCPMConstants.BCAST_IP);
314 ip4Reply.setTotalLength((short) (rawPkt.length+20));
315 ip4Reply.setTtl((byte) 32);
316 // create Ethernet Frame
317 Ethernet ether = new Ethernet();
318 if (etherPkt.getEtherType() == (short)NwConstants.ETHTYPE_802_1Q) {
319 IEEE8021Q vlanPacket = (IEEE8021Q) etherPkt.getPayload();
320 IEEE8021Q vlanTagged = new IEEE8021Q();
321 vlanTagged.setCFI(vlanPacket.getCfi());
322 vlanTagged.setPriority(vlanPacket.getPriority());
323 vlanTagged.setVlanId(vlanPacket.getVlanId());
324 vlanTagged.setPayload(ip4Reply);
325 vlanTagged.setEtherType(EtherTypes.IPv4.shortValue());
326 ether.setPayload(vlanTagged);
327 ether.setEtherType((short) NwConstants.ETHTYPE_802_1Q);
329 ether.setEtherType(EtherTypes.IPv4.shortValue());
330 ether.setPayload(ip4Reply);
332 ether.setSourceMACAddress(getServerMacAddress(phyAddrees));
333 ether.setDestinationMACAddress(etherPkt.getSourceMACAddress());
336 rawPkt = ether.serialize();
337 } catch (PacketException e) {
338 LOG.warn("Failed to serialize ethernet reply",e);
344 private byte[] getServerMacAddress(String phyAddress) {
345 // Should we return ControllerMac instead?
346 return DHCPUtils.strMacAddrtoByteArray(phyAddress);
349 public short computeChecksum(byte[] inData, byte[] srcAddr, byte[] destAddr) {
350 short checkSum = (short) 0;
351 int sum = 0, carry = 0;
354 for (i = 0; i < inData.length - 1; i = i + 2) {
355 // Skip, if the current bytes are checkSum bytes
356 wordData = ((inData[i] << 8) & 0xFF00) + (inData[i + 1] & 0xFF);
357 sum = sum + wordData;
360 if (i < inData.length) {
361 wordData = ((inData[i] << 8) & 0xFF00) + (0 & 0xFF);
362 sum = sum + wordData;
365 for (i = 0; i < 4; i = i + 2) {
366 wordData = ((srcAddr[i] << 8) & 0xFF00) + (srcAddr[i + 1] & 0xFF);
367 sum = sum + wordData;
370 for (i = 0; i < 4; i = i + 2) {
371 wordData = ((destAddr[i] << 8) & 0xFF00) + (destAddr[i + 1] & 0xFF);
372 sum = sum + wordData;
374 sum = sum + 17 + inData.length;
376 while((sum >> 16) != 0) {
378 sum = (sum & 0xFFFF)+ carry;
380 checkSum = (short) ~((short) sum & 0xFFFF);
382 checkSum = (short)0xffff;
387 private void setCommonOptions(DHCP pkt, DhcpInfo dhcpInfo) {
388 pkt.setOptionInt(DHCPConstants.OPT_LEASE_TIME, dhcpMgr.getDhcpLeaseTime());
389 if (dhcpMgr.getDhcpDefDomain() != null) {
390 pkt.setOptionString(DHCPConstants.OPT_DOMAIN_NAME, dhcpMgr.getDhcpDefDomain());
392 if(dhcpMgr.getDhcpLeaseTime() > 0) {
393 pkt.setOptionInt(DHCPConstants.OPT_REBINDING_TIME, dhcpMgr.getDhcpRebindingTime());
394 pkt.setOptionInt(DHCPConstants.OPT_RENEWAL_TIME, dhcpMgr.getDhcpRenewalTime());
396 SubnetUtils util = null;
397 SubnetInfo info = null;
398 util = new SubnetUtils(dhcpInfo.getCidr());
399 info = util.getInfo();
400 String gwIp = dhcpInfo.getGatewayIp();
401 List<String> dnServers = dhcpInfo.getDnsServers();
404 * setParameterListOptions may have initialized some of these
405 * options to maintain order. If we can't fill them, unset to avoid
406 * sending wrong information in reply.
409 pkt.setOptionInetAddr(DHCPConstants.OPT_SERVER_IDENTIFIER, gwIp);
410 pkt.setOptionInetAddr(DHCPConstants.OPT_ROUTERS, gwIp);
412 pkt.unsetOption(DHCPConstants.OPT_SERVER_IDENTIFIER);
413 pkt.unsetOption(DHCPConstants.OPT_ROUTERS);
416 pkt.setOptionInetAddr(DHCPConstants.OPT_SUBNET_MASK, info.getNetmask());
417 pkt.setOptionInetAddr(DHCPConstants.OPT_BROADCAST_ADDRESS, info.getBroadcastAddress());
419 pkt.unsetOption(DHCPConstants.OPT_SUBNET_MASK);
420 pkt.unsetOption(DHCPConstants.OPT_BROADCAST_ADDRESS);
422 if ((dnServers != null) && (dnServers.size() > 0)) {
423 pkt.setOptionStrAddrs(DHCPConstants.OPT_DOMAIN_NAME_SERVERS, dnServers);
425 pkt.unsetOption(DHCPConstants.OPT_DOMAIN_NAME_SERVERS);
427 } catch (UnknownHostException e) {
428 // TODO Auto-generated catch block
433 private void setParameterListOptions(DHCP req, DHCP reply, DhcpInfo dhcpInfo) {
434 byte[] paramList = req.getOptionBytes(DHCPConstants.OPT_PARAMETER_REQUEST_LIST);
435 for(int i = 0; i < paramList.length; i++) {
436 switch (paramList[i]) {
437 case DHCPConstants.OPT_SUBNET_MASK:
438 case DHCPConstants.OPT_ROUTERS:
439 case DHCPConstants.OPT_SERVER_IDENTIFIER:
440 case DHCPConstants.OPT_DOMAIN_NAME_SERVERS:
441 case DHCPConstants.OPT_BROADCAST_ADDRESS:
442 case DHCPConstants.OPT_LEASE_TIME:
443 case DHCPConstants.OPT_RENEWAL_TIME:
444 case DHCPConstants.OPT_REBINDING_TIME:
445 /* These values will be filled in setCommonOptions
446 * Setting these just to preserve order as
447 * specified in PARAMETER_REQUEST_LIST.
449 reply.setOptionInt(paramList[i], 0);
451 case DHCPConstants.OPT_DOMAIN_NAME:
452 reply.setOptionString(paramList[i], " ");
454 case DHCPConstants.OPT_CLASSLESS_ROUTE:
455 setOptionClasslessRoute(reply, dhcpInfo);
458 LOG.debug("DHCP Option code {} not supported yet", paramList[i]);
463 private void setOptionClasslessRoute(DHCP reply, DhcpInfo dhcpInfo) {
464 List<HostRoutes> hostRoutes = dhcpInfo.getHostRoutes();
465 if(hostRoutes == null) {
466 //we can't set this option, so return
469 ByteArrayOutputStream result = new ByteArrayOutputStream();
470 Iterator<HostRoutes> iter = hostRoutes.iterator();
471 while(iter.hasNext()) {
472 HostRoutes hostRoute = iter.next();
473 if(hostRoute.getNexthop().getIpv4Address() == null ||
474 hostRoute.getDestination().getIpv4Prefix() == null ) {
475 // we only deal with IPv4 addresses
478 String router = hostRoute.getNexthop().getIpv4Address().getValue();
479 String dest = hostRoute.getDestination().getIpv4Prefix().getValue();
481 result.write(convertToClasslessRouteOption(dest, router));
482 } catch (IOException | NullPointerException e) {
483 LOG.debug("Exception {}",e.getMessage());
486 if (result.size() > 0) {
487 reply.setOptionBytes(DHCPConstants.OPT_CLASSLESS_ROUTE , result.toByteArray());
491 protected byte[] convertToClasslessRouteOption(String dest, String router) {
492 ByteArrayOutputStream bArr = new ByteArrayOutputStream();
500 String[] parts = dest.split("/");
501 if (parts.length < 2) {
502 prefix = new Short((short)0);
504 prefix = Short.valueOf(parts[1]);
507 bArr.write(prefix.byteValue());
508 SubnetUtils util = new SubnetUtils(dest);
509 SubnetInfo info = util.getInfo();
510 String strNetAddr = info.getNetworkAddress();
512 byte[] netAddr = InetAddress.getByName(strNetAddr).getAddress();
513 //Strip any trailing 0s from netAddr
514 for(int i = 0; i < netAddr.length;i++) {
515 if(netAddr[i] != 0) {
516 bArr.write(netAddr,i,1);
519 bArr.write(InetAddress.getByName(router).getAddress());
520 } catch (IOException e) {
523 return bArr.toByteArray();
526 private boolean isPktInReasonSendtoCtrl(Class<? extends PacketInReason> pktInReason) {
527 return (pktInReason == SendToController.class);
531 public void close() throws Exception {
532 // TODO Auto-generated method stub
535 public void setPacketProcessingService(PacketProcessingService packetService) {
536 this.pktService = packetService;
539 public void setInterfaceManagerRpc(OdlInterfaceRpcService interfaceManagerRpc) {
540 LOG.trace("Registered interfaceManager successfully");;
541 this.interfaceManagerRpc = interfaceManagerRpc;
544 private String getInterfaceNameFromTag(long portTag) {
545 String interfaceName = null;
546 GetInterfaceFromIfIndexInput input = new GetInterfaceFromIfIndexInputBuilder().setIfIndex(new Integer((int)portTag)).build();
547 Future<RpcResult<GetInterfaceFromIfIndexOutput>> futureOutput = interfaceManagerRpc.getInterfaceFromIfIndex(input);
549 GetInterfaceFromIfIndexOutput output = futureOutput.get().getResult();
550 interfaceName = output.getInterfaceName();
551 } catch (InterruptedException | ExecutionException e) {
552 LOG.error("Error while retrieving the interfaceName from tag using getInterfaceFromIfIndex RPC");
554 LOG.trace("Returning interfaceName {} for tag {} form getInterfaceNameFromTag", interfaceName, portTag);
555 return interfaceName;
558 private org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface getInterfaceStateFromOperDS(String interfaceName) {
559 InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
560 buildStateInterfaceId(interfaceName);
561 Optional<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateOptional =
562 MDSALUtil.read(LogicalDatastoreType.OPERATIONAL, ifStateId, dataBroker);
563 if (!ifStateOptional.isPresent()) {
567 return ifStateOptional.get();
570 private InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> buildStateInterfaceId(String interfaceName) {
571 InstanceIdentifierBuilder<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> idBuilder =
572 InstanceIdentifier.builder(InterfacesState.class)
573 .child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.class,
574 new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey(interfaceName));
575 InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> id = idBuilder.build();
579 private List<Action> getEgressAction(String interfaceName, BigInteger tunnelId) {
580 List<Action> actions = null;
582 GetEgressActionsForInterfaceInputBuilder egressAction = new GetEgressActionsForInterfaceInputBuilder().setIntfName(interfaceName);
583 if (tunnelId != null) {
584 egressAction.setTunnelKey(tunnelId.longValue());
586 Future<RpcResult<GetEgressActionsForInterfaceOutput>> result =
587 interfaceManagerRpc.getEgressActionsForInterface(egressAction.build());
588 RpcResult<GetEgressActionsForInterfaceOutput> rpcResult = result.get();
589 if(!rpcResult.isSuccessful()) {
590 LOG.warn("RPC Call to Get egress actions for interface {} returned with Errors {}", interfaceName, rpcResult.getErrors());
592 actions = rpcResult.getResult().getAction();
594 } catch (InterruptedException | ExecutionException e) {
595 LOG.warn("Exception when egress actions for interface {}", interfaceName, e);
600 private ImmutablePair<BigInteger, String> getDpnIdPhysicalAddressFromInterfaceName(String interfaceName) {
601 ImmutablePair<BigInteger, String> pair = dhcpMgr.getInterfaceCache(interfaceName);
602 if (pair!=null && pair.getLeft() != null && pair.getRight() != null) {
605 NodeConnectorId nodeConnectorId = null;
606 org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface interfaceState = getInterfaceStateFromOperDS(interfaceName);
607 if(interfaceState != null) {
608 List<String> ofportIds = interfaceState.getLowerLayerIf();
609 nodeConnectorId = new NodeConnectorId(ofportIds.get(0));
611 BigInteger dpId = BigInteger.valueOf(MDSALUtil.getDpnIdFromPortName(nodeConnectorId));
612 String phyAddress = interfaceState==null ? "":interfaceState.getPhysAddress().getValue();
613 pair = new ImmutablePair<BigInteger, String>(dpId, phyAddress);
614 dhcpMgr.updateInterfaceCache(interfaceName, pair);