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CORD-2870: Bypass DHCP leasequery without learning routes.

Browse Source 
Changes:
    * Add configuration flag to disable old leasequery routing/learning flow
    * Route leasequery (v4 and v6) responses to an originator
    * Fix NPE and BufferOverflow exceptions in Dhcp6LeaseQueryOption
    * Make Dhcp4/Dhcp6HandlerUtil classes static
    * Fix codestyle issues

Change-Id: Ic9e527d73a226e7f1f544dab9fb98398b85c5460
This commit is contained in:
Taras Lemkin 2018-03-26 14:52:58 +00:00 committed by Andrea Campanella
parent b812ca138c
commit 96a0d34085
7 changed files with 531 additions and 387 deletions
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463
apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp4HandlerImpl.java
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@ -26,6 +26,7 @@ import com.google.common.collect.Sets;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Modified;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferenceCardinality;
@ -43,6 +44,8 @@ import org.onlab.packet.VlanId;
import org.onlab.packet.dhcp.CircuitId;
import org.onlab.packet.dhcp.DhcpOption;
import org.onlab.packet.dhcp.DhcpRelayAgentOption;
import org.onlab.util.Tools;
import org.onosproject.cfg.ComponentConfigService;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.CoreService;
import org.onosproject.dhcprelay.api.DhcpHandler;
@ -88,14 +91,16 @@ import org.onosproject.net.packet.DefaultOutboundPacket;
import org.onosproject.net.packet.OutboundPacket;
import org.onosproject.net.packet.PacketContext;
import org.onosproject.net.packet.PacketService;
import org.osgi.service.component.ComponentContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Dictionary;
import java.util.List;
import java.util.ArrayList;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
@ -115,7 +120,6 @@ import static org.onlab.util.Tools.groupedThreads;
import static org.onosproject.net.flowobjective.Objective.Operation.ADD;
import static org.onosproject.net.flowobjective.Objective.Operation.REMOVE;
import org.onosproject.dhcprelay.Dhcp4HandlerUtil.InternalPacket;
@Component
@Service
@ -126,6 +130,8 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
private static final String BROADCAST_IP = "255.255.255.255";
private static final int IGNORE_CONTROL_PRIORITY = PacketPriority.CONTROL.priorityValue() + 1000;
private static final String LQ_ROUTE_PROPERTY_NAME = "learnRouteFromLeasequery";
private static final TrafficSelector CLIENT_SERVER_SELECTOR = DefaultTrafficSelector.builder()
.matchEthType(Ethernet.TYPE_IPV4)
.matchIPProtocol(IPv4.PROTOCOL_UDP)
@ -173,6 +179,9 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected FlowObjectiveService flowObjectiveService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected ComponentConfigService cfgService;
protected HostProviderService providerService;
protected ApplicationId appId;
protected Multimap<DeviceId, VlanId> ignoredVlans = Multimaps.synchronizedMultimap(HashMultimap.create());
@ -180,13 +189,18 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
private List<DhcpServerInfo> defaultServerInfoList = new CopyOnWriteArrayList<>();
private List<DhcpServerInfo> indirectServerInfoList = new CopyOnWriteArrayList<>();
private Dhcp4HandlerUtil dhcp4HandlerUtil = new Dhcp4HandlerUtil();
@Property(name = Dhcp4HandlerImpl.LQ_ROUTE_PROPERTY_NAME, boolValue = false,
label = "Enable learning routing information from LQ")
private Boolean learnRouteFromLeasequery = Boolean.TRUE;
private Executor hostEventExecutor = newSingleThreadExecutor(
groupedThreads("dhcp4-event-host", "%d", log));
@Activate
protected void activate() {
protected void activate(ComponentContext context) {
cfgService.registerProperties(getClass());
modified(context);
appId = coreService.registerApplication(DHCP_V4_RELAY_APP);
hostService.addListener(hostListener);
providerService = providerRegistry.register(this);
@ -194,6 +208,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
@Deactivate
protected void deactivate() {
cfgService.unregisterProperties(getClass(), false);
providerRegistry.unregister(this);
hostService.removeListener(hostListener);
defaultServerInfoList.forEach(this::stopMonitoringIps);
@ -202,6 +217,18 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
indirectServerInfoList.clear();
}
@Modified
protected void modified(ComponentContext context) {
Dictionary<?, ?> properties = context.getProperties();
Boolean flag;
flag = Tools.isPropertyEnabled(properties, Dhcp4HandlerImpl.LQ_ROUTE_PROPERTY_NAME);
if (flag != null) {
learnRouteFromLeasequery = flag;
log.info("Learning routes from DHCP leasequery is {}",
learnRouteFromLeasequery ? "enabled" : "disabled");
}
}
private void stopMonitoringIps(DhcpServerInfo serverInfo) {
serverInfo.getDhcpGatewayIp4().ifPresent(gatewayIp -> {
hostService.stopMonitoringIp(gatewayIp);
@ -302,7 +329,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
// Create new server info according to the config
serverInfoList.clear();
for (DhcpServerConfig serverConfig : configs) {
log.info("// Create new server info according to the config");
log.debug("Create new server info according to the config");
DhcpServerInfo newServerInfo = new DhcpServerInfo(serverConfig,
DhcpServerInfo.Version.DHCP_V4);
checkState(newServerInfo.getDhcpServerConnectPoint().isPresent(),
@ -384,9 +411,9 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
break;
case DHCPOFFER:
//reply to dhcp client.
Ethernet ethernetPacketOffer = processDhcpPacketFromServer(context, packet);
InternalPacket ethernetPacketOffer = processDhcpPacketFromServer(context, packet);
if (ethernetPacketOffer != null) {
writeResponseDhcpRecord(ethernetPacketOffer, dhcpPayload);
writeResponseDhcpRecord(ethernetPacketOffer.getPacket(), dhcpPayload);
sendResponseToClient(ethernetPacketOffer, dhcpPayload);
}
break;
@ -405,10 +432,10 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
break;
case DHCPACK:
// reply to dhcp client.
Ethernet ethernetPacketAck = processDhcpPacketFromServer(context, packet);
InternalPacket ethernetPacketAck = processDhcpPacketFromServer(context, packet);
if (ethernetPacketAck != null) {
writeResponseDhcpRecord(ethernetPacketAck, dhcpPayload);
handleDhcpAck(ethernetPacketAck, dhcpPayload);
writeResponseDhcpRecord(ethernetPacketAck.getPacket(), dhcpPayload);
handleDhcpAck(ethernetPacketAck.getPacket(), dhcpPayload);
sendResponseToClient(ethernetPacketAck, dhcpPayload);
}
break;
@ -520,151 +547,171 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
private void handleLeaseQueryActivateMsg(Ethernet packet, DHCP dhcpPayload) {
log.debug("LQ: Got DHCPLEASEACTIVE packet!");
// TODO: release the ip address from client
MacAddress clientMacAddress = MacAddress.valueOf(dhcpPayload.getClientHardwareAddress());
VlanId vlanId = VlanId.vlanId(packet.getVlanID());
HostId hostId = HostId.hostId(clientMacAddress, vlanId);
DhcpRecord record = dhcpRelayStore.getDhcpRecord(hostId).orElse(null);
if (learnRouteFromLeasequery) {
// TODO: release the ip address from client
MacAddress clientMacAddress = MacAddress.valueOf(dhcpPayload.getClientHardwareAddress());
VlanId vlanId = VlanId.vlanId(packet.getVlanID());
HostId hostId = HostId.hostId(clientMacAddress, vlanId);
DhcpRecord record = dhcpRelayStore.getDhcpRecord(hostId).orElse(null);
if (record == null) {
log.warn("Can't find record for host {} when processing DHCPLEASEACTIVE", hostId);
return;
if (record == null) {
log.warn("Can't find record for host {} when processing DHCPLEASEACTIVE", hostId);
return;
}
// need to update routes
log.debug("Lease Query for Client results in DHCPLEASEACTIVE - route needs to be modified");
// get current route
// find the ip of that client with the DhcpRelay store
Ip4Address clientIP = record.ip4Address().orElse(null);
log.debug("LQ: IP of host is " + clientIP.getIp4Address());
MacAddress nextHopMac = record.nextHop().orElse(null);
log.debug("LQ: MAC of resulting *OLD* NH for that host is " + nextHopMac.toString());
// find the new NH by looking at the src MAC of the dhcp request
// from the LQ store
MacAddress newNextHopMac = record.nextHopTemp().orElse(null);
log.debug("LQ: MAC of resulting *NEW* NH for that host is " + newNextHopMac.toString());
log.debug("LQ: updating dhcp relay record with new NH");
record.nextHop(newNextHopMac);
// find the next hop IP from its mac
HostId gwHostId = HostId.hostId(newNextHopMac, vlanId);
Host gwHost = hostService.getHost(gwHostId);
if (gwHost == null) {
log.warn("Can't find gateway for new NH host " + gwHostId);
return;
}
Ip4Address nextHopIp = gwHost.ipAddresses()
.stream()
.filter(IpAddress::isIp4)
.map(IpAddress::getIp4Address)
.findFirst()
.orElse(null);
if (nextHopIp == null) {
log.warn("Can't find IP address of gateway " + gwHost);
return;
}
log.debug("LQ: *NEW* NH IP for host is " + nextHopIp.getIp4Address());
Route route = new Route(Route.Source.DHCP, clientIP.toIpPrefix(), nextHopIp);
routeStore.updateRoute(route);
}
// need to update routes
log.debug("Lease Query for Client results in DHCPLEASEACTIVE - route needs to be modified");
// get current route
// find the ip of that client with the DhcpRelay store
Ip4Address clientIP = record.ip4Address().orElse(null);
log.debug("LQ: IP of host is " + clientIP.getIp4Address());
MacAddress nextHopMac = record.nextHop().orElse(null);
log.debug("LQ: MAC of resulting *OLD* NH for that host is " + nextHopMac.toString());
// find the new NH by looking at the src MAC of the dhcp request
// from the LQ store
MacAddress newNextHopMac = record.nextHopTemp().orElse(null);
log.debug("LQ: MAC of resulting *NEW* NH for that host is " + newNextHopMac.toString());
log.debug("LQ: updating dhcp relay record with new NH");
record.nextHop(newNextHopMac);
// find the next hop IP from its mac
HostId gwHostId = HostId.hostId(newNextHopMac, vlanId);
Host gwHost = hostService.getHost(gwHostId);
if (gwHost == null) {
log.warn("Can't find gateway for new NH host " + gwHostId);
return;
}
Ip4Address nextHopIp = gwHost.ipAddresses()
.stream()
.filter(IpAddress::isIp4)
.map(IpAddress::getIp4Address)
.findFirst()
.orElse(null);
if (nextHopIp == null) {
log.warn("Can't find IP address of gateway " + gwHost);
return;
}
log.debug("LQ: *NEW* NH IP for host is " + nextHopIp.getIp4Address());
Route route = new Route(Route.Source.DHCP, clientIP.toIpPrefix(), nextHopIp);
routeStore.updateRoute(route);
// and forward to client
Ethernet ethernetPacket = processLeaseQueryFromServer(packet);
InternalPacket ethernetPacket = processLeaseQueryFromServer(packet);
if (ethernetPacket != null) {
sendResponseToClient(ethernetPacket, dhcpPayload);
}
}
/**
*
*/
private void handleLeaseQueryMsg(PacketContext context, Ethernet packet, DHCP dhcpPayload) {
log.debug("LQ: Got DHCPLEASEQUERY packet!");
MacAddress clientMacAddress = MacAddress.valueOf(dhcpPayload.getClientHardwareAddress());
log.debug("LQ: got DHCPLEASEQUERY with MAC " + clientMacAddress.toString());
// add the client mac (hostid) of this request to a store (the entry will be removed with
// the reply sent to the originator)
VlanId vlanId = VlanId.vlanId(packet.getVlanID());
HostId hId = HostId.hostId(clientMacAddress, vlanId);
DhcpRecord record = dhcpRelayStore.getDhcpRecord(hId).orElse(null);
if (record != null) {
//new NH is to be taken from src mac of LQ packet
MacAddress newNextHop = packet.getSourceMAC();
record.nextHopTemp(newNextHop);
record.ip4Status(dhcpPayload.getPacketType());
record.updateLastSeen();
// If this flag is enabled we expect that DHCPLEASEQUERY-ies are sent from an access concentrator
// where queried client is connected to. Otherwise, DHCPLEASEQUERY source may be a separate connected agent
if (learnRouteFromLeasequery) {
log.debug("LQ: Got DHCPLEASEQUERY packet!");
MacAddress clientMacAddress = MacAddress.valueOf(dhcpPayload.getClientHardwareAddress());
log.debug("LQ: got DHCPLEASEQUERY with MAC " + clientMacAddress.toString());
// add the client mac (hostid) of this request to a store (the entry will be removed with
// the reply sent to the originator)
VlanId vlanId = VlanId.vlanId(packet.getVlanID());
HostId hId = HostId.hostId(clientMacAddress, vlanId);
DhcpRecord record = dhcpRelayStore.getDhcpRecord(hId).orElse(null);
if (record != null) {
//new NH is to be taken from src mac of LQ packet
MacAddress newNextHop = packet.getSourceMAC();
record.nextHopTemp(newNextHop);
record.ip4Status(dhcpPayload.getPacketType());
record.updateLastSeen();
// do a basic routing of the packet (this is unicast routing
// not a relay operation like for other broadcast dhcp packets
List<InternalPacket> ethernetPacketRequest = processLeaseQueryFromAgent(context, packet);
// and forward to server
for (InternalPacket internalPacket : ethernetPacketRequest) {
log.debug("LeaseQueryMsg forward to server");
forwardPacket(internalPacket);
}
} else {
log.warn("LQ: Error! - DHCP relay record for that client not found - ignoring LQ!");
}
} else {
log.debug("LQ: Got DHCPLEASEQUERY packet!");
int giaddr = dhcpPayload.getGatewayIPAddress();
log.debug("DHCPLEASEQUERY giaddr: {} ({}). Originators connectPoint: {}", giaddr,
Ip4Address.valueOf(giaddr), context.inPacket().receivedFrom());
// do a basic routing of the packet (this is unicast routing
// not a relay operation like for other broadcast dhcp packets
List<InternalPacket> ethernetPacketRequest = processLeaseQueryFromAgent(context, packet);
// and forward to server
for (InternalPacket internalPacket : ethernetPacketRequest) {
log.debug("LeaseQueryMsg forward to server");
log.trace("LeaseQueryMsg forward to server connected to {}", internalPacket.getDestLocation());
forwardPacket(internalPacket);
}
} else {
log.warn("LQ: Error! - DHCP relay record for that client not found - ignoring LQ!");
}
}
private void handleLeaseQueryUnknown(Ethernet packet, DHCP dhcpPayload) {
log.debug("Lease Query for Client results in DHCPLEASEUNASSIGNED or " +
"DHCPLEASEUNKNOWN - removing route & forwarding reply to originator");
MacAddress clientMacAddress = MacAddress.valueOf(dhcpPayload.getClientHardwareAddress());
VlanId vlanId = VlanId.vlanId(packet.getVlanID());
HostId hostId = HostId.hostId(clientMacAddress, vlanId);
DhcpRecord record = dhcpRelayStore.getDhcpRecord(hostId).orElse(null);
if (learnRouteFromLeasequery) {
MacAddress clientMacAddress = MacAddress.valueOf(dhcpPayload.getClientHardwareAddress());
VlanId vlanId = VlanId.vlanId(packet.getVlanID());
HostId hostId = HostId.hostId(clientMacAddress, vlanId);
DhcpRecord record = dhcpRelayStore.getDhcpRecord(hostId).orElse(null);
if (record == null) {
log.warn("Can't find record for host {} when handling LQ UNKNOWN/UNASSIGNED message", hostId);
return;
if (record == null) {
log.warn("Can't find record for host {} when handling LQ UNKNOWN/UNASSIGNED message", hostId);
return;
}
Ip4Address clientIP = record.ip4Address().orElse(null);
log.debug("LQ: IP of host is " + clientIP.getIp4Address());
// find the new NH by looking at the src MAC of the dhcp request
// from the LQ store
MacAddress nextHopMac = record.nextHop().orElse(null);
log.debug("LQ: MAC of resulting *Existing* NH for that route is " + nextHopMac.toString());
// find the next hop IP from its mac
HostId gwHostId = HostId.hostId(nextHopMac, vlanId);
Host gwHost = hostService.getHost(gwHostId);
if (gwHost == null) {
log.warn("Can't find gateway for new NH host " + gwHostId);
return;
}
Ip4Address nextHopIp = gwHost.ipAddresses()
.stream()
.filter(IpAddress::isIp4)
.map(IpAddress::getIp4Address)
.findFirst()
.orElse(null);
if (nextHopIp == null) {
log.warn("Can't find IP address of gateway {}", gwHost);
return;
}
log.debug("LQ: *Existing* NH IP for host is " + nextHopIp.getIp4Address() + " removing route for it");
Route route = new Route(Route.Source.DHCP, clientIP.toIpPrefix(), nextHopIp);
routeStore.removeRoute(route);
// remove from temp store
dhcpRelayStore.removeDhcpRecord(hostId);
}
Ip4Address clientIP = record.ip4Address().orElse(null);
log.debug("LQ: IP of host is " + clientIP.getIp4Address());
// find the new NH by looking at the src MAC of the dhcp request
// from the LQ store
MacAddress nextHopMac = record.nextHop().orElse(null);
log.debug("LQ: MAC of resulting *Existing* NH for that route is " + nextHopMac.toString());
// find the next hop IP from its mac
HostId gwHostId = HostId.hostId(nextHopMac, vlanId);
Host gwHost = hostService.getHost(gwHostId);
if (gwHost == null) {
log.warn("Can't find gateway for new NH host " + gwHostId);
return;
}
Ip4Address nextHopIp = gwHost.ipAddresses()
.stream()
.filter(IpAddress::isIp4)
.map(IpAddress::getIp4Address)
.findFirst()
.orElse(null);
if (nextHopIp == null) {
log.warn("Can't find IP address of gateway {}", gwHost);
return;
}
log.debug("LQ: *Existing* NH IP for host is " + nextHopIp.getIp4Address() + " removing route for it");
Route route = new Route(Route.Source.DHCP, clientIP.toIpPrefix(), nextHopIp);
routeStore.removeRoute(route);
// remove from temp store
dhcpRelayStore.removeDhcpRecord(hostId);
// and forward to client
Ethernet ethernetPacket = processLeaseQueryFromServer(packet);
InternalPacket ethernetPacket = processLeaseQueryFromServer(packet);
if (ethernetPacket != null) {
sendResponseToClient(ethernetPacket, dhcpPayload);
}
@ -683,7 +730,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
ConnectPoint receivedFrom = context.inPacket().receivedFrom();
DeviceId receivedFromDevice = receivedFrom.deviceId();
Ip4Address relayAgentIp = null;
relayAgentIp = dhcp4HandlerUtil.getRelayAgentIPv4Address(clientInterfaces);
relayAgentIp = Dhcp4HandlerUtil.getRelayAgentIPv4Address(clientInterfaces);
MacAddress relayAgentMac = clientInterfaces.iterator().next().mac();
if (relayAgentIp == null || relayAgentMac == null) {
log.warn("Missing DHCP relay agent interface Ipv4 addr config for "
@ -724,7 +771,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
ConnectPoint clientConnectionPoint = context.inPacket().receivedFrom();
VlanId vlanIdInUse = VlanId.vlanId(ethernetPacket.getVlanID());
Interface clientInterface = interfaceService.getInterfacesByPort(clientConnectionPoint)
.stream().filter(iface -> dhcp4HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse))
.stream().filter(iface -> Dhcp4HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse))
.findFirst()
.orElse(null);
@ -735,9 +782,9 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
for (DhcpServerInfo serverInfo : copyServerInfoList) {
etherReply = (Ethernet) ethernetPacket.clone();
ipv4Packet = (IPv4) etherReply.getPayload();
udpPacket = (UDP) ipv4Packet.getPayload();
dhcpPacket = (DHCP) udpPacket.getPayload();
ipv4Packet = (IPv4) etherReply.getPayload();
udpPacket = (UDP) ipv4Packet.getPayload();
dhcpPacket = (DHCP) udpPacket.getPayload();
if (!checkDhcpServerConnPt(directConnFlag, serverInfo)) {
log.warn("Can't get server connect point, ignore");
continue;
@ -850,8 +897,9 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
ipv4Packet.setPayload(udpPacket);
ipv4Packet.setTtl((byte) 64);
etherReply.setPayload(ipv4Packet);
InternalPacket internalPacket = new Dhcp4HandlerUtil().new InternalPacket(etherReply,
InternalPacket internalPacket = InternalPacket.internalPacket(etherReply,
serverInfo.getDhcpServerConnectPoint().get());
internalPackets.add(internalPacket);
}
return internalPackets;
@ -898,9 +946,6 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
boolean directConnFlag = directlyConnected(dhcpPacket);
// Multi DHCP Start
ConnectPoint clientConnectionPoint = context.inPacket().receivedFrom();
VlanId vlanIdInUse = VlanId.vlanId(ethernetPacket.getVlanID());
List<InternalPacket> internalPackets = new ArrayList<>();
List<DhcpServerInfo> serverInfoList = findValidServerInfo(directConnFlag);
List<DhcpServerInfo> copyServerInfoList = new ArrayList<>(serverInfoList);
@ -947,27 +992,28 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
if (newServerInfo.getDhcpConnectVlan().isPresent()) {
etherReply.setVlanID(serverInfo.getDhcpConnectVlan().get().toShort());
}
relayAgentIp = newServerInfo.getRelayAgentIp4(receivedFromDevice).orElse(null);
// Sets relay agent IP
int effectiveRelayAgentIp = relayAgentIp != null ?
relayAgentIp.toInt() : clientInterfaceIp.toInt();
dhcpPacket.setGatewayIPAddress(effectiveRelayAgentIp);
} else {
if (!newServerInfo.getDhcpServerIp4().isPresent()) {
//do nothing
} else if (!newServerInfo.getDhcpConnectMac().isPresent()) {
continue;
} else {
if (learnRouteFromLeasequery) {
relayAgentIp = newServerInfo.getRelayAgentIp4(receivedFromDevice).orElse(null);
// Sets relay agent IP
int effectiveRelayAgentIp = relayAgentIp != null ?
relayAgentIp.toInt() : clientInterfaceIp.toInt();
dhcpPacket.setGatewayIPAddress(effectiveRelayAgentIp);
}
} else {
if (!newServerInfo.getDhcpServerIp4().isPresent()) {
//do nothing
} else if (!newServerInfo.getDhcpConnectMac().isPresent()) {
continue;
} else if (learnRouteFromLeasequery) {
relayAgentIp = newServerInfo.getRelayAgentIp4(receivedFromDevice).orElse(null);
// Sets relay agent IP
int effectiveRelayAgentIp = relayAgentIp != null ?
relayAgentIp.toInt() : clientInterfaceIp.toInt();
dhcpPacket.setGatewayIPAddress(effectiveRelayAgentIp);
log.info("Relay Agent IP {}", relayAgentIp);
log.debug("Relay Agent IP {}", relayAgentIp);
}
log.info("In Direct");
log.trace("Indirect");
}
// Remove broadcast flag
@ -981,12 +1027,14 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
ipv4Packet.setPayload(udpPacket);
ipv4Packet.setTtl((byte) 64);
etherReply.setPayload(ipv4Packet);
udpPacket.resetChecksum();
////return etherReply;
Dhcp4HandlerUtil.InternalPacket internalPacket = new Dhcp4HandlerUtil().new InternalPacket(etherReply,
InternalPacket internalPacket = InternalPacket.internalPacket(etherReply,
newServerInfo.getDhcpServerConnectPoint().get());
internalPackets.add(internalPacket);
}
log.warn("num of processLeaseQueryFromAgent packets to send is{}", internalPackets.size());
log.debug("num of processLeaseQueryFromAgent packets to send is: {}", internalPackets.size());
return internalPackets;
}
@ -1066,7 +1114,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
* @param ethernetPacket the original packet comes from server
* @return new packet which will send to the client
*/
private Ethernet processDhcpPacketFromServer(PacketContext context, Ethernet ethernetPacket) {
private InternalPacket processDhcpPacketFromServer(PacketContext context, Ethernet ethernetPacket) {
// get dhcp header.
Ethernet etherReply = (Ethernet) ethernetPacket.clone();
IPv4 ipv4Packet = (IPv4) etherReply.getPayload();
@ -1090,7 +1138,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
log.warn("Cannot find server info");
return null;
} else {
if (dhcp4HandlerUtil.isServerIpEmpty(foundServerInfo)) {
if (Dhcp4HandlerUtil.isServerIpEmpty(foundServerInfo)) {
log.warn("Cannot find server info's ipaddress");
return null;
}
@ -1160,7 +1208,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
udpPacket.setPayload(dhcpPayload);
ipv4Packet.setPayload(udpPacket);
etherReply.setPayload(ipv4Packet);
return etherReply;
return InternalPacket.internalPacket(etherReply, clientInterface.connectPoint());
}
/**
@ -1169,7 +1217,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
* @param ethernetPacket the original packet comes from server
* @return new packet which will send to the client
*/
private Ethernet processLeaseQueryFromServer(Ethernet ethernetPacket) {
private InternalPacket processLeaseQueryFromServer(Ethernet ethernetPacket) {
// get dhcp header.
Ethernet etherReply = (Ethernet) ethernetPacket.clone();
IPv4 ipv4Packet = (IPv4) etherReply.getPayload();
@ -1178,7 +1226,33 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
// determine the vlanId of the client host - note that this vlan id
// could be different from the vlan in the packet from the server
Interface clientInterface = getClientInterface(ethernetPacket, dhcpPayload).orElse(null);
Interface clientInterface = null;
MacAddress destinationMac = MacAddress.valueOf(dhcpPayload.getClientHardwareAddress());
if (!learnRouteFromLeasequery) {
int giaddr = ipv4Packet.getDestinationAddress();
IpAddress destinationAddress = Ip4Address.valueOf(giaddr);
log.debug("DHCPLEASEQUERYRESP giaddr: {}({})", giaddr, destinationAddress);
Host destinationHost = hostService.getHostsByIp(destinationAddress).stream().findFirst().orElse(null);
if (destinationHost != null) {
destinationMac = destinationHost.mac();
log.trace("DHCPLEASEQUERYRESP destination mac is: {}", destinationMac);
ConnectPoint destinationLocation = destinationHost.location();
log.trace("Lookup for client interface by destination location {}", destinationLocation);
clientInterface = interfaceService.getInterfacesByPort(destinationLocation)
.stream()
.filter(iface -> interfaceContainsVlan(iface, VlanId.vlanId(etherReply.getVlanID())))
.findFirst()
.orElse(null);
log.trace("Found Host {} by ip {}", destinationHost, destinationAddress);
log.debug("DHCPLEASEQUERYRESP Client interface: {}",
(clientInterface != null ? clientInterface : "not resolved"));
}
} else {
clientInterface = getClientInterface(ethernetPacket, dhcpPayload).orElse(null);
}
if (clientInterface == null) {
log.warn("Cannot find the interface for the DHCP {}", dhcpPayload);
@ -1197,31 +1271,40 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
etherReply.setVlanID(vlanId.toShort());
etherReply.setSourceMACAddress(clientInterface.mac());
if (!directlyConnected(dhcpPayload)) {
if (!directlyConnected(dhcpPayload) && learnRouteFromLeasequery) {
// if client is indirectly connected, try use next hop mac address
MacAddress macAddress = MacAddress.valueOf(dhcpPayload.getClientHardwareAddress());
HostId hostId = HostId.hostId(macAddress, vlanId);
DhcpRecord record = dhcpRelayStore.getDhcpRecord(hostId).orElse(null);
if (record != null) {
// if next hop can be found, use mac address of next hop
record.nextHop().ifPresent(etherReply::setDestinationMACAddress);
Optional<MacAddress> nextHop = record.nextHopTemp();
if (!nextHop.isPresent()) {
nextHop = record.nextHop();
}
nextHop.ifPresent(etherReply::setDestinationMACAddress);
} else {
// otherwise, discard the packet
log.warn("Can't find record for host id {}, discard packet", hostId);
return null;
}
} else {
etherReply.setDestinationMACAddress(dhcpPayload.getClientHardwareAddress());
etherReply.setDestinationMACAddress(destinationMac);
}
// default is client port
udpPacket.setSourcePort(UDP.DHCP_SERVER_PORT);
udpPacket.setDestinationPort(UDP.DHCP_CLIENT_PORT);
if (directlyConnected(dhcpPayload)) {
udpPacket.setDestinationPort(UDP.DHCP_CLIENT_PORT);
} else {
udpPacket.setDestinationPort(UDP.DHCP_SERVER_PORT);
}
udpPacket.setPayload(dhcpPayload);
ipv4Packet.setPayload(udpPacket);
etherReply.setPayload(ipv4Packet);
return etherReply;
udpPacket.resetChecksum();
return InternalPacket.internalPacket(etherReply, clientInterface.connectPoint());
}
/**
* Extracts VLAN ID from relay agent option.
@ -1274,6 +1357,17 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
return ethernet;
}
private boolean isDhcpPacketLeasequery(DHCP dhcpPacket) {
switch (dhcpPacket.getPacketType()) {
case DHCPLEASEACTIVE:
case DHCPLEASEQUERY:
case DHCPLEASEUNASSIGNED:
case DHCPLEASEUNKNOWN:
return true;
default:
return false;
}
}
/**
* Check if the host is directly connected to the network or not.
@ -1282,6 +1376,11 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
* @return true if the host is directly connected to the network; false otherwise
*/
private boolean directlyConnected(DHCP dhcpPayload) {
// leasequery is always indirect
if (isDhcpPacketLeasequery(dhcpPayload)) {
return false;
}
DhcpRelayAgentOption relayAgentOption =
(DhcpRelayAgentOption) dhcpPayload.getOption(OptionCode_CircuitID);
@ -1445,31 +1544,30 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
/**
* Send the response DHCP to the requester host.
*
* @param ethPacket the packet
* @param thePacket the packet
* @param dhcpPayload the DHCP data
*/
private void sendResponseToClient(Ethernet ethPacket, DHCP dhcpPayload) {
Optional<Interface> outInterface = getClientInterface(ethPacket, dhcpPayload);
private void sendResponseToClient(InternalPacket thePacket, DHCP dhcpPayload) {
checkNotNull(thePacket, "Nothing to send");
checkNotNull(thePacket.getPacket(), "Packet to send must not be empty");
checkNotNull(thePacket.getDestLocation(), "Packet destination not be empty");
Ethernet ethPacket = thePacket.getPacket();
if (directlyConnected(dhcpPayload)) {
ethPacket = removeRelayAgentOption(ethPacket);
}
if (!outInterface.isPresent()) {
log.warn("Can't find output interface for client, ignore");
return;
}
Interface outIface = outInterface.get();
TrafficTreatment treatment = DefaultTrafficTreatment.builder()
.setOutput(outIface.connectPoint().port())
.setOutput(thePacket.getDestLocation().port())
.build();
OutboundPacket o = new DefaultOutboundPacket(
outIface.connectPoint().deviceId(),
thePacket.getDestLocation().deviceId(),
treatment,
ByteBuffer.wrap(ethPacket.serialize()));
if (log.isTraceEnabled()) {
log.trace("Relaying packet to DHCP client {} via {}, vlan {}",
log.trace("Relaying packet to DHCP client {} via {}",
ethPacket,
outIface.connectPoint(),
outIface.vlan());
thePacket.getDestLocation());
}
packetService.emit(o);
}
@ -1798,7 +1896,7 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
if (dhcpServerConnectPoint != null && dhcpConnectVlan != null) {
serverInterface = interfaceService.getInterfacesByPort(dhcpServerConnectPoint)
.stream()
.filter(iface -> dhcp4HandlerUtil.interfaceContainsVlan(iface, dhcpConnectVlan))
.filter(iface -> Dhcp4HandlerUtil.interfaceContainsVlan(iface, dhcpConnectVlan))
.findFirst()
.orElse(null);
} else {
@ -1812,15 +1910,15 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
//forward the packet to ConnectPoint where the DHCP server is attached.
private void forwardPacket(InternalPacket packet) {
//send Packetout to dhcp server connectpoint.
if (packet.destLocation != null) {
if (packet.getDestLocation() != null) {
TrafficTreatment t = DefaultTrafficTreatment.builder()
.setOutput(packet.destLocation.port()).build();
.setOutput(packet.getDestLocation().port()).build();
OutboundPacket o = new DefaultOutboundPacket(
packet.destLocation.deviceId(), t, ByteBuffer.wrap(packet.packet.serialize()));
packet.getDestLocation().deviceId(), t, ByteBuffer.wrap(packet.getPacket().serialize()));
if (log.isTraceEnabled()) {
log.trace("Relaying packet to destination {}", packet.destLocation);
log.trace("Relaying packet to destination {}", packet.getDestLocation());
}
log.debug("packetService.emit(o) to port {}", packet.destLocation);
log.debug("packetService.emit(o) to port {}", packet.getDestLocation());
packetService.emit(o);
}
}
@ -1842,5 +1940,4 @@ public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
}
return foundServerInfo;
}
}

32
apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp4HandlerUtil.java
View File

@ -18,12 +18,8 @@ package org.onosproject.dhcprelay;
import org.onlab.packet.Ip4Address;
import org.onlab.packet.VlanId;
import org.onlab.packet.Ethernet;
import org.onlab.util.HexString;
import org.onosproject.dhcprelay.api.DhcpServerInfo;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.host.InterfaceIpAddress;
import org.onosproject.net.intf.Interface;
@ -31,10 +27,11 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Set;
public class Dhcp4HandlerUtil {
public final class Dhcp4HandlerUtil {
private static final Logger log = LoggerFactory.getLogger(Dhcp4HandlerUtil.class);
private final Logger log = LoggerFactory.getLogger(getClass());
private Dhcp4HandlerUtil() {
}
/**
* Returns the first v4 interface ip out of a set of interfaces or null.
@ -42,7 +39,7 @@ public class Dhcp4HandlerUtil {
* @param intfs set of interfaces
* @return Ip4Address / null if not present
*/
public Ip4Address getRelayAgentIPv4Address(Set<Interface> intfs) {
public static Ip4Address getRelayAgentIPv4Address(Set<Interface> intfs) {
for (Interface intf : intfs) {
for (InterfaceIpAddress ip : intf.ipAddressesList()) {
Ip4Address relayAgentIp = ip.ipAddress().getIp4Address();
@ -61,7 +58,7 @@ public class Dhcp4HandlerUtil {
* @param vlanId the vlan id
* @return true if the Interface contains the vlan id
*/
public boolean interfaceContainsVlan(Interface iface, VlanId vlanId) {
public static boolean interfaceContainsVlan(Interface iface, VlanId vlanId) {
if (vlanId.equals(VlanId.NONE)) {
// untagged packet, check if vlan untagged or vlan native is not NONE
return !iface.vlanUntagged().equals(VlanId.NONE) ||
@ -77,7 +74,7 @@ public class Dhcp4HandlerUtil {
* @param serverInfo server info to check
* @return true if server info has v6 ip address; false otherwise
*/
public boolean isServerIpEmpty(DhcpServerInfo serverInfo) {
public static boolean isServerIpEmpty(DhcpServerInfo serverInfo) {
if (!serverInfo.getDhcpServerIp4().isPresent()) {
log.warn("DhcpServerIp not available, use default DhcpServerIp {}",
HexString.toHexString(serverInfo.getDhcpServerIp4().get().toOctets()));
@ -85,20 +82,5 @@ public class Dhcp4HandlerUtil {
}
return false;
}
/**
* the new class the contains Ethernet packet and destination port.
*/
public class InternalPacket {
Ethernet packet;
ConnectPoint destLocation;
public InternalPacket(Ethernet newPacket, ConnectPoint newLocation) {
packet = newPacket;
destLocation = newLocation;
}
}
}

240
apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp6HandlerImpl.java
View File

@ -20,11 +20,12 @@ import com.google.common.collect.HashMultimap;
import com.google.common.collect.Lists;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Deactivate;
import com.google.common.collect.Sets;
import com.google.common.collect.ImmutableSet;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Modified;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferenceCardinality;
@ -54,6 +55,8 @@ import org.onlab.packet.dhcp.Dhcp6ClientIdOption;
import org.onlab.packet.dhcp.Dhcp6Duid;
import org.onlab.packet.DHCP6.MsgType;
import org.onlab.util.HexString;
import org.onlab.util.Tools;
import org.onosproject.cfg.ComponentConfigService;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.CoreService;
import org.onosproject.dhcprelay.api.DhcpHandler;
@ -83,7 +86,6 @@ import org.onosproject.net.host.HostProviderService;
import org.onosproject.net.host.HostService;
import org.onosproject.net.host.DefaultHostDescription;
import org.onosproject.net.host.HostDescription;
import org.onosproject.net.host.InterfaceIpAddress;
import org.onosproject.net.host.HostListener;
import org.onosproject.net.host.HostEvent;
import org.onosproject.net.intf.Interface;
@ -101,17 +103,18 @@ import org.onosproject.net.packet.DefaultOutboundPacket;
import org.onosproject.net.packet.OutboundPacket;
import org.onosproject.net.packet.PacketContext;
import org.onosproject.net.packet.PacketService;
import org.osgi.service.component.ComponentContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.onosproject.net.flow.DefaultTrafficTreatment;
import org.onosproject.net.flow.TrafficTreatment;
import org.onosproject.dhcprelay.Dhcp6HandlerUtil.InternalPacket;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Dictionary;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.ArrayList;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.Executor;
import java.util.concurrent.atomic.AtomicInteger;
@ -132,6 +135,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
public static final ProviderId PROVIDER_ID = new ProviderId("dhcp6", DHCP_V6_RELAY_APP);
private static final int IGNORE_CONTROL_PRIORITY = PacketPriority.CONTROL.priorityValue() + 1000;
private String gCount = "global";
private static final String LQ_ROUTE_PROPERTY_NAME = "learnRouteFromLeasequery";
private static final TrafficSelector CLIENT_SERVER_SELECTOR = DefaultTrafficSelector.builder()
.matchEthType(Ethernet.TYPE_IPV6)
.matchIPProtocol(IPv6.PROTOCOL_UDP)
@ -194,12 +198,18 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected FlowObjectiveService flowObjectiveService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected ComponentConfigService cfgService;
@Property(name = Dhcp6HandlerImpl.LQ_ROUTE_PROPERTY_NAME, boolValue = false,
label = "Enable learning routing information from LQ")
private Boolean learnRouteFromLeasequery = Boolean.TRUE;
protected HostProviderService providerService;
protected ApplicationId appId;
protected Multimap<DeviceId, VlanId> ignoredVlans = Multimaps.synchronizedMultimap(HashMultimap.create());
private InternalHostListener hostListener = new InternalHostListener();
private Boolean dhcpFpmEnabled = false;
private Dhcp6HandlerUtil dhcp6HandlerUtil = new Dhcp6HandlerUtil();
private List<DhcpServerInfo> defaultServerInfoList = new CopyOnWriteArrayList<>();
private List<DhcpServerInfo> indirectServerInfoList = new CopyOnWriteArrayList<>();
@ -236,7 +246,9 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
DHCP6.MsgType.LEASEQUERY_REPLY.value());
@Activate
protected void activate() {
protected void activate(ComponentContext context) {
cfgService.registerProperties(getClass());
modified(context);
appId = coreService.registerApplication(DHCP_V6_RELAY_APP);
providerService = providerRegistry.register(this);
hostService.addListener(hostListener);
@ -244,6 +256,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
@Deactivate
protected void deactivate() {
cfgService.unregisterProperties(getClass(), false);
providerRegistry.unregister(this);
hostService.removeListener(hostListener);
defaultServerInfoList.forEach(this::stopMonitoringIps);
@ -252,6 +265,18 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
indirectServerInfoList.clear();
}
@Modified
protected void modified(ComponentContext context) {
Dictionary<?, ?> properties = context.getProperties();
Boolean flag;
flag = Tools.isPropertyEnabled(properties, Dhcp6HandlerImpl.LQ_ROUTE_PROPERTY_NAME);
if (flag != null) {
learnRouteFromLeasequery = flag;
log.info("Learning routes from DHCP leasequery is {}",
learnRouteFromLeasequery ? "enabled" : "disabled");
}
}
private void stopMonitoringIps(DhcpServerInfo serverInfo) {
serverInfo.getDhcpGatewayIp6().ifPresent(gatewayIp -> {
hostService.stopMonitoringIp(gatewayIp);
@ -307,7 +332,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
public DhcpRecord getDhcpRelayRecordFor(Ip6Address clientAddress) {
Collection<DhcpRecord> records = dhcpRelayStore.getDhcpRecords();
Collection<DhcpRecord> records = dhcpRelayStore.getDhcpRecords();
DhcpRecord dr = null;
for (DhcpRecord e:records) {
if (e.ip6Address().isPresent()) {
@ -478,7 +503,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
ConnectPoint inPort = context.inPacket().receivedFrom();
if (inPort == null) {
log.warn("incomming ConnectPoint is null");
log.warn("incoming ConnectPoint is null");
}
Set<Interface> receivingInterfaces = interfaceService.getInterfacesByPort(inPort);
//ignore the packets if dhcp client interface is not configured on onos.
@ -488,20 +513,21 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
}
if (msgTypeVal == DHCP6.MsgType.LEASEQUERY.value()) {
List<InternalPacket> ethernetClientPacket =
processLQ6PacketFromClient(context, receivedPacket, receivingInterfaces, dhcp6Payload);
for (InternalPacket internalPacket : ethernetClientPacket) {
List<InternalPacket> ethernetClientPackets =
learnRouteFromLeasequery ?
processLQ6PacketFromClient(context, receivedPacket, receivingInterfaces, dhcp6Payload) :
processDhcp6ForwardOnly(context, receivedPacket, receivingInterfaces, dhcp6Payload);
for (InternalPacket internalPacket : ethernetClientPackets) {
forwardPacket(internalPacket);
}
} else if (msgTypeVal == DHCP6.MsgType.LEASEQUERY_REPLY.value()) {
} else if (msgTypeVal == DHCP6.MsgType.LEASEQUERY_REPLY.value() && learnRouteFromLeasequery) {
IPv6 clientIpv6 = (IPv6) receivedPacket.getPayload();
UDP clientUdp = (UDP) clientIpv6.getPayload();
DHCP6 clientDhcp6 = (DHCP6) clientUdp.getPayload();
Interface serverInterface = dhcp6HandlerUtil.directlyConnected(clientDhcp6) ?
Interface serverInterface = Dhcp6HandlerUtil.directlyConnected(clientDhcp6) ?
getServerInterface() : getIndirectServerInterface();
InternalPacket ethernetPacketReply =
dhcp6HandlerUtil.processLQ6PacketFromServer(
Dhcp6HandlerUtil.processLQ6PacketFromServer(
defaultServerInfoList, indirectServerInfoList,
serverInterface, interfaceService,
hostService,
@ -510,24 +536,21 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
forwardPacket(ethernetPacketReply);
}
handleLeaseQuery6ReplyMsg(context, dhcp6Payload);
} else {
if (MSG_TYPE_FROM_CLIENT.contains(msgTypeVal)) {
List<InternalPacket> ethernetClientPacket =
processDhcp6PacketFromClient(context, receivedPacket, receivingInterfaces);
for (InternalPacket internalPacket : ethernetClientPacket) {
forwardPacket(internalPacket);
}
} else if (MSG_TYPE_FROM_SERVER.contains(msgTypeVal)) {
log.debug("calling processDhcp6PacketFromServer with RELAY_REPL {}", msgTypeVal);
InternalPacket ethernetPacketReply =
processDhcp6PacketFromServer(context, receivedPacket, receivingInterfaces);
if (ethernetPacketReply != null) {
forwardPacket(ethernetPacketReply);
}
} else {
log.warn("Not so fast, packet type {} not supported yet", msgTypeVal);
} else if (MSG_TYPE_FROM_CLIENT.contains(msgTypeVal)) {
List<InternalPacket> ethernetClientPacket =
processDhcp6PacketFromClient(context, receivedPacket, receivingInterfaces);
for (InternalPacket internalPacket : ethernetClientPacket) {
forwardPacket(internalPacket);
}
} else if (MSG_TYPE_FROM_SERVER.contains(msgTypeVal)) {
log.debug("calling processDhcp6PacketFromServer with RELAY_REPL {}, {}", receivedPacket, dhcp6Payload);
InternalPacket ethernetPacketReply =
processDhcp6PacketFromServer(context, receivedPacket, receivingInterfaces);
if (ethernetPacketReply != null) {
forwardPacket(ethernetPacketReply);
}
} else {
log.warn("Not so fast, packet type {} not supported yet", msgTypeVal);
}
}
@ -553,16 +576,21 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
//forward the packet to ConnectPoint where the DHCP server is attached.
private void forwardPacket(InternalPacket packet) {
//send Packetout to dhcp server connectpoint.
if (packet.destLocation != null) {
if (packet.getDestLocation() != null) {
TrafficTreatment t = DefaultTrafficTreatment.builder()
.setOutput(packet.destLocation.port()).build();
.setOutput(packet.getDestLocation().port()).build();
OutboundPacket o = new DefaultOutboundPacket(
packet.destLocation.deviceId(), t, ByteBuffer.wrap(packet.packet.serialize()));
if (log.isTraceEnabled()) {
log.trace("Relaying packet to destination {}", packet.destLocation);
}
packet.getDestLocation().deviceId(), t, ByteBuffer.wrap(packet.getPacket().serialize()));
packetService.emit(o);
} // if
if (log.isTraceEnabled()) {
IPv6 ip6 = (IPv6) packet.getPacket().getPayload();
UDP udp = (UDP) ip6.getPayload();
DHCP6 dhcp6 = (DHCP6) udp.getPayload();
log.trace("Relaying packet to destination {} eth: {} dhcp: {}",
packet.getDestLocation(), packet.getPacket(), dhcp6);
}
}
}
/**
@ -683,7 +711,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
.findFirst()
.orElse(null);
} else {
DHCP6 leafDhcp = dhcp6HandlerUtil.getDhcp6Leaf(dhcp6Payload);
DHCP6 leafDhcp = Dhcp6HandlerUtil.getDhcp6Leaf(dhcp6Payload);
clientIdOption = leafDhcp.getOptions()
.stream()
.filter(opt -> opt instanceof Dhcp6ClientIdOption)
@ -740,7 +768,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
record = record.clone();
}
Boolean isMsgRelease = dhcp6HandlerUtil.isDhcp6Release(dhcp6Packet);
Boolean isMsgRelease = Dhcp6HandlerUtil.isDhcp6Release(dhcp6Packet);
IpAddressInfo ipInfo;
PdPrefixInfo pdInfo = null;
if (directConnFlag) {
@ -767,7 +795,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
return;
}
DHCP6 leafDhcp = dhcp6HandlerUtil.getDhcp6Leaf(dhcp6Packet);
DHCP6 leafDhcp = Dhcp6HandlerUtil.getDhcp6Leaf(dhcp6Packet);
ipInfo = extractIpAddress(leafDhcp);
if (ipInfo == null) {
log.debug("ip is null");
@ -822,7 +850,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
}
if (record != null) {
record.getV6Counters().incrementCounter(dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
record.getV6Counters().incrementCounter(Dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
record.addLocation(new HostLocation(location, System.currentTimeMillis()));
record.ip6Status(DHCP6.MsgType.getType(leafMsgType));
record.setDirectlyConnected(directConnFlag);
@ -837,7 +865,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
try {
recordSemaphore.acquire();
try {
dhcpRelayCountersStore.incrementCounter(gCount, dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
dhcpRelayCountersStore.incrementCounter(gCount, Dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
} finally {
// calling release() after a successful acquire()
recordSemaphore.release();
@ -856,13 +884,12 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
* @param embeddedDhcp6 the dhcp6 payload within relay
* @param srcMac client gw/host macAddress
* @param clientInterface client interface
* @param dhcpServerIp6Address DHCP server IP
*/
private void addHostOrRoute(boolean directConnFlag, ConnectPoint location, DHCP6 dhcp6Relay,
DHCP6 embeddedDhcp6, MacAddress srcMac, Interface clientInterface) {
log.debug("addHostOrRoute entered.");
VlanId vlanId = clientInterface.vlan();
Boolean isMsgReply = dhcp6HandlerUtil.isDhcp6Reply(dhcp6Relay);
Boolean isMsgReply = Dhcp6HandlerUtil.isDhcp6Reply(dhcp6Relay);
MacAddress leafClientMac;
Byte leafMsgType;
@ -931,7 +958,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
return;
}
DHCP6 leafDhcp = dhcp6HandlerUtil.getDhcp6Leaf(embeddedDhcp6);
DHCP6 leafDhcp = Dhcp6HandlerUtil.getDhcp6Leaf(embeddedDhcp6);
ipInfo = extractIpAddress(leafDhcp);
if (ipInfo == null) {
log.debug("ip is null");
@ -988,7 +1015,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
}
}
record.getV6Counters().incrementCounter(dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
record.getV6Counters().incrementCounter(Dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
record.ip6Status(DHCP6.MsgType.getType(leafMsgType));
record.setDirectlyConnected(directConnFlag);
record.updateLastSeen();
@ -997,7 +1024,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
try {
recordSemaphore.acquire();
try {
dhcpRelayCountersStore.incrementCounter(gCount, dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
dhcpRelayCountersStore.incrementCounter(gCount, Dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
} finally {
// calling release() after a successful acquire()
recordSemaphore.release();
@ -1007,6 +1034,28 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
}
}
private List<InternalPacket> processDhcp6ForwardOnly(PacketContext context,
Ethernet clientPacket,
Set<Interface> clientInterfaces,
DHCP6 dhcpPacket) {
ConnectPoint inPort = context.inPacket().receivedFrom();
log.trace("Got DHCPv6 on port {}", inPort);
boolean directConnFlag = Dhcp6HandlerUtil.directlyConnected(dhcpPacket);
List<InternalPacket> internalPackets = new ArrayList<>();
List<DhcpServerInfo> serverInfoList = findValidServerInfo(directConnFlag);
for (DhcpServerInfo dhcpServer : serverInfoList) {
Ethernet newPacket = Dhcp6HandlerUtil.buildDhcp6PacketFromClient(context,
clientPacket, clientInterfaces, dhcpServer, getServerInterface(dhcpServer));
log.trace("Built packet for server {} : {}", dhcpServer, newPacket);
internalPackets.add(InternalPacket.internalPacket(newPacket,
dhcpServer.getDhcpServerConnectPoint().get()));
}
return internalPackets;
}
private List<InternalPacket> processLQ6PacketFromClient(PacketContext context,
Ethernet clientPacket,
Set<Interface> clientInterfaces,
@ -1048,27 +1097,18 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
MacAddress potentialNH = packet.getSourceMAC();
VlanId vlanId = VlanId.vlanId(packet.getVlanID());
setPotentialNextHopForIp6InRelayStore(clientAddress, vlanId, potentialNH);
// 3. route this LQ6 to all relevant servers
IPv6 clientIpv6 = (IPv6) clientPacket.getPayload();
UDP clientUdp = (UDP) clientIpv6.getPayload();
DHCP6 clientDhcp6 = (DHCP6) clientUdp.getPayload();
boolean directConnFlag = dhcp6HandlerUtil.directlyConnected(clientDhcp6);
ConnectPoint clientConnectionPoint = context.inPacket().receivedFrom();
VlanId vlanIdInUse = VlanId.vlanId(clientPacket.getVlanID());
Interface clientInterface = interfaceService.getInterfacesByPort(clientConnectionPoint)
.stream().filter(iface -> dhcp6HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse))
.findFirst()
.orElse(null);
boolean directConnFlag = Dhcp6HandlerUtil.directlyConnected(clientDhcp6);
List<InternalPacket> internalPackets = new ArrayList<>();
List<DhcpServerInfo> serverInfoList = findValidServerInfo(directConnFlag);
List<DhcpServerInfo> copyServerInfoList = new ArrayList<DhcpServerInfo>(serverInfoList);
for (DhcpServerInfo serverInfo : copyServerInfoList) {
if (!dhcp6HandlerUtil.checkDhcpServerConnPt(directConnFlag, serverInfo)) {
if (!Dhcp6HandlerUtil.checkDhcpServerConnPt(directConnFlag, serverInfo)) {
log.warn("Can't get server connect point, ignore");
continue;
}
@ -1077,14 +1117,11 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
log.warn("Can't get server interface with host info resolved, ignore");
continue;
}
Interface serverInterface = getServerInterface(newServerInfo);
if (serverInterface == null) {
log.warn("Can't get server interface, ignore");
continue;
}
Ethernet etherRouted = (Ethernet) clientPacket.clone();
MacAddress macFacingServer = serverInterface.mac();
if (macFacingServer == null) {
@ -1094,7 +1131,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
etherRouted.setSourceMACAddress(macFacingServer);
etherRouted.setDestinationMACAddress(newServerInfo.getDhcpConnectMac().get());
InternalPacket internalPacket =
new Dhcp6HandlerUtil().new InternalPacket(etherRouted,
InternalPacket.internalPacket(etherRouted,
serverInfo.getDhcpServerConnectPoint().get());
internalPackets.add(internalPacket);
log.debug("Sending LQ to DHCP server {}", newServerInfo.getDhcpServerIp6());
@ -1115,8 +1152,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
Ethernet clientPacket,
Set<Interface> clientInterfaces) {
ConnectPoint receivedFrom = context.inPacket().receivedFrom();
DeviceId receivedFromDevice = receivedFrom.deviceId();
Ip6Address relayAgentIp = dhcp6HandlerUtil.getRelayAgentIPv6Address(clientInterfaces);
Ip6Address relayAgentIp = Dhcp6HandlerUtil.getRelayAgentIPv6Address(clientInterfaces);
MacAddress relayAgentMac = clientInterfaces.iterator().next().mac();
if (relayAgentIp == null || relayAgentMac == null) {
log.warn("Missing DHCP relay agent interface Ipv6 addr config for "
@ -1130,12 +1166,12 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
UDP clientUdp = (UDP) clientIpv6.getPayload();
DHCP6 clientDhcp6 = (DHCP6) clientUdp.getPayload();
boolean directConnFlag = dhcp6HandlerUtil.directlyConnected(clientDhcp6);
boolean directConnFlag = Dhcp6HandlerUtil.directlyConnected(clientDhcp6);
ConnectPoint clientConnectionPoint = context.inPacket().receivedFrom();
VlanId vlanIdInUse = VlanId.vlanId(clientPacket.getVlanID());
Interface clientInterface = interfaceService.getInterfacesByPort(clientConnectionPoint)
.stream().filter(iface -> dhcp6HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse))
.stream().filter(iface -> Dhcp6HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse))
.findFirst()
.orElse(null);
@ -1144,7 +1180,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
List<DhcpServerInfo> copyServerInfoList = new ArrayList<DhcpServerInfo>(serverInfoList);
for (DhcpServerInfo serverInfo : copyServerInfoList) {
if (!dhcp6HandlerUtil.checkDhcpServerConnPt(directConnFlag, serverInfo)) {
if (!Dhcp6HandlerUtil.checkDhcpServerConnPt(directConnFlag, serverInfo)) {
log.warn("Can't get server connect point, ignore");
continue;
}
@ -1160,12 +1196,12 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
continue;
}
Ethernet etherReply = dhcp6HandlerUtil.buildDhcp6PacketFromClient(context, clientPacket,
Ethernet etherReply = Dhcp6HandlerUtil.buildDhcp6PacketFromClient(context, clientPacket,
clientInterfaces, newServerInfo, serverInterface);
removeHostOrRoute(directConnFlag, clientConnectionPoint, clientDhcp6, clientPacket,
clientIpv6, clientInterface);
InternalPacket internalPacket = new Dhcp6HandlerUtil().new InternalPacket(etherReply,
InternalPacket internalPacket = InternalPacket.internalPacket(etherReply,
serverInfo.getDhcpServerConnectPoint().get());
internalPackets.add(internalPacket);
}
@ -1189,7 +1225,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
IPv6 ipv6Packet = (IPv6) etherReply.getPayload();
UDP udpPacket = (UDP) ipv6Packet.getPayload();
DHCP6 dhcp6Relay = (DHCP6) udpPacket.getPayload();
Boolean directConnFlag = dhcp6HandlerUtil.directlyConnected(dhcp6Relay);
Boolean directConnFlag = Dhcp6HandlerUtil.directlyConnected(dhcp6Relay);
DHCP6 embeddedDhcp6 = dhcp6Relay.getOptions().stream()
.filter(opt -> opt instanceof Dhcp6RelayOption)
@ -1205,7 +1241,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_SERVER_INFO);
return null;
} else {
if (dhcp6HandlerUtil.isServerIpEmpty(foundServerInfo)) {
if (Dhcp6HandlerUtil.isServerIpEmpty(foundServerInfo)) {
log.warn("Cannot find server info's ipaddress");
dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_SERVER_IP6ADDR);
return null;
@ -1228,7 +1264,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
ConnectPoint clientConnectionPoint = ConnectPoint.deviceConnectPoint(clientConnectionPointStr);
VlanId vlanIdInUse = VlanId.vlanId(interfaceIdOption.getVlanId());
Interface clientInterface = interfaceService.getInterfacesByPort(clientConnectionPoint)
.stream().filter(iface -> dhcp6HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse))
.stream().filter(iface -> Dhcp6HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse))
.findFirst().orElse(null);
if (clientInterface == null) {
log.warn("Cannot get client interface for from packet, abort... vlan {}", vlanIdInUse.toString());
@ -1274,30 +1310,23 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
} else {
udpPacket.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
}
// add host or route
addHostOrRoute(directConnFlag, clientConnectionPoint, dhcp6Relay, embeddedDhcp6,
clientMac, clientInterface);
boolean hostOrRouteAllowed = learnRouteFromLeasequery ||
Dhcp6HandlerUtil.getDhcp6LeafMessageType(dhcp6Relay) != MsgType.LEASEQUERY_REPLY;
log.debug("Can add host or route: {}", hostOrRouteAllowed);
if (hostOrRouteAllowed) {
// add host or route
addHostOrRoute(directConnFlag, clientConnectionPoint, dhcp6Relay, embeddedDhcp6,
clientMac, clientInterface);
}
udpPacket.setPayload(embeddedDhcp6);
udpPacket.resetChecksum();
ipv6Packet.setPayload(udpPacket);
etherReply.setPayload(ipv6Packet);
return new Dhcp6HandlerUtil().new InternalPacket(etherReply, clientConnectionPoint);
}
// Returns the first v6 interface ip out of a set of interfaces or null.
// Checks all interfaces, and ignores v6 interface ips
private Ip6Address getRelayAgentIPv6Address(Set<Interface> intfs) {
for (Interface intf : intfs) {
for (InterfaceIpAddress ip : intf.ipAddressesList()) {
Ip6Address relayAgentIp = ip.ipAddress().getIp6Address();
if (relayAgentIp != null) {
return relayAgentIp;
}
}
}
return null;
return InternalPacket.internalPacket(etherReply, clientConnectionPoint);
}
@Override
@ -1476,23 +1505,6 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
}
}
/**
* Returns the first interface ip from interface.
*
* @param iface interface of one connect point
* @return the first interface IP; null if not exists an IP address in
* these interfaces
*/
private Ip6Address getFirstIpFromInterface(Interface iface) {
checkNotNull(iface, "Interface can't be null");
return iface.ipAddressesList().stream()
.map(InterfaceIpAddress::ipAddress)
.filter(IpAddress::isIp6)
.map(IpAddress::getIp6Address)
.findFirst()
.orElse(null);
}
/**
* Gets Interface facing to the server for default host.
*
@ -1516,7 +1528,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
}
return interfaceService.getInterfacesByPort(dhcpServerConnectPoint)
.stream()
.filter(iface -> dhcp6HandlerUtil.interfaceContainsVlan(iface, dhcpConnectVlan))
.filter(iface -> Dhcp6HandlerUtil.interfaceContainsVlan(iface, dhcpConnectVlan))
.findFirst()
.orElse(null);
}
@ -1546,7 +1558,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
}
return interfaceService.getInterfacesByPort(indirectDhcpServerConnectPoint)
.stream()
.filter(iface -> dhcp6HandlerUtil.interfaceContainsVlan(iface, indirectDhcpConnectVlan))
.filter(iface -> Dhcp6HandlerUtil.interfaceContainsVlan(iface, indirectDhcpConnectVlan))
.findFirst()
.orElse(null);
}
@ -1615,7 +1627,7 @@ public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
if (dhcpServerConnectPoint != null && dhcpConnectVlan != null) {
serverInterface = interfaceService.getInterfacesByPort(dhcpServerConnectPoint)
.stream()
.filter(iface -> dhcp6HandlerUtil.interfaceContainsVlan(iface, dhcpConnectVlan))
.filter(iface -> Dhcp6HandlerUtil.interfaceContainsVlan(iface, dhcpConnectVlan))
.findFirst()
.orElse(null);
} else {

110
apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp6HandlerUtil.java
View File

@ -52,14 +52,16 @@ import org.onosproject.net.HostLocation;
import static com.google.common.base.Preconditions.checkNotNull;
public final class Dhcp6HandlerUtil {
private static final Logger log = LoggerFactory.getLogger(Dhcp6HandlerUtil.class);
public class Dhcp6HandlerUtil {
private Dhcp6HandlerUtil() {
}
private final Logger log = LoggerFactory.getLogger(getClass());
// Returns the first v6 interface ip out of a set of interfaces or null.
// Checks all interfaces, and ignores v6 interface ips
public Ip6Address getRelayAgentIPv6Address(Set<Interface> intfs) {
public static Ip6Address getRelayAgentIPv6Address(Set<Interface> intfs) {
for (Interface intf : intfs) {
for (InterfaceIpAddress ip : intf.ipAddressesList()) {
Ip6Address relayAgentIp = ip.ipAddress().getIp6Address();
@ -71,6 +73,22 @@ public class Dhcp6HandlerUtil {
return null;
}
/**
* Returns the first interface ip from interface.
*
* @param iface interface of one connect point
* @return the first interface IP; null if not exists an IP address in
* these interfaces
*/
private static Ip6Address getFirstIpFromInterface(Interface iface) {
checkNotNull(iface, "Interface can't be null");
return iface.ipAddressesList().stream()
.map(InterfaceIpAddress::ipAddress)
.filter(IpAddress::isIp6)
.map(IpAddress::getIp6Address)
.findFirst()
.orElse(null);
}
/**
*
* process the LQ reply packet from dhcp server.
@ -85,7 +103,7 @@ public class Dhcp6HandlerUtil {
* @param recevingInterfaces set of server side interfaces
* @return a packet ready to be sent to relevant output interface
*/
public InternalPacket processLQ6PacketFromServer(
public static InternalPacket processLQ6PacketFromServer(
List<DhcpServerInfo> defaultServerInfoList,
List<DhcpServerInfo> indirectServerInfoList,
Interface serverInterface,
@ -141,14 +159,14 @@ public class Dhcp6HandlerUtil {
if ((directConnFlag || indirectDhcpServerIp == null)
&& !inPort.equals(dhcpServerConnectPoint)) {
log.warn("Receiving port {} is not the same as server connect point {} for direct or indirect-null",
inPort, dhcpServerConnectPoint);
inPort, dhcpServerConnectPoint);
return null;
}
if (!directConnFlag && indirectDhcpServerIp != null &&
!inPort.equals(indirectDhcpServerConnectPoint)) {
log.warn("Receiving port {} is not the same as server connect point {} for indirect",
inPort, indirectDhcpServerConnectPoint);
inPort, indirectDhcpServerConnectPoint);
return null;
}
@ -180,9 +198,6 @@ public class Dhcp6HandlerUtil {
etherReply.setSourceMACAddress(iface.mac());
etherReply.setDestinationMACAddress(host.mac());
// add host or route
//addHostOrRoute(directConnFlag, clientConnectionPoint, lq6Reply, embeddedDhcp6, clientMac, clientInterface);
// workaround for a bug where core sends src port as 547 (server)
udpPacket.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
udpPacket.setPayload(lq6Reply);
@ -190,23 +205,7 @@ public class Dhcp6HandlerUtil {
ipv6Packet.setPayload(udpPacket);
etherReply.setPayload(ipv6Packet);
return new Dhcp6HandlerUtil().new InternalPacket(etherReply, clientConnectionPoint);
}
/**
* Returns the first interface ip from interface.
*
* @param iface interface of one connect point
* @return the first interface IP; null if not exists an IP address in
* these interfaces
*/
public Ip6Address getFirstIpFromInterface(Interface iface) {
checkNotNull(iface, "Interface can't be null");
return iface.ipAddressesList().stream()
.map(InterfaceIpAddress::ipAddress)
.filter(IpAddress::isIp6)
.map(IpAddress::getIp6Address)
.findFirst()
.orElse(null);
return InternalPacket.internalPacket(etherReply, clientConnectionPoint);
}
/**
@ -215,7 +214,7 @@ public class Dhcp6HandlerUtil {
* @param dhcp6 dhcp6 relay-reply or relay-foward
* @return dhcp6Packet dhcp6 packet extracted from relay-message
*/
public DHCP6 dhcp6PacketFromRelayPacket(DHCP6 dhcp6) {
public static DHCP6 dhcp6PacketFromRelayPacket(DHCP6 dhcp6) {
// extract the relay message if exist
DHCP6 dhcp6Payload = dhcp6.getOptions().stream()
@ -239,7 +238,7 @@ public class Dhcp6HandlerUtil {
* @param relayPacket dhcp6 relay packet
* @return leafPacket non-relay dhcp6 packet
*/
public DHCP6 getDhcp6Leaf(DHCP6 relayPacket) {
public static DHCP6 getDhcp6Leaf(DHCP6 relayPacket) {
DHCP6 dhcp6Parent = relayPacket;
DHCP6 dhcp6Child = null;
@ -263,13 +262,25 @@ public class Dhcp6HandlerUtil {
return dhcp6Child;
}
/**
* Determine DHCP message type (direct DHCPv6 or wrapped into relay messages).
*
* @param relayPacket {@link DHCP6} packet to be parsed
* @return {@link DHCP6.MsgType} contained message type of dhcpv6 packet/relay-message
*/
public static DHCP6.MsgType getDhcp6LeafMessageType(DHCP6 relayPacket) {
checkNotNull(relayPacket);
DHCP6 dhcp6Child = getDhcp6Leaf(relayPacket);
return DHCP6.MsgType.getType(dhcp6Child != null ? dhcp6Child.getMsgType() : relayPacket.getMsgType());
}
/**
* check if DHCP6 relay-reply is reply.
*
* @param relayPacket dhcp6 relay-reply
* @return boolean relay-reply contains ack
*/
public boolean isDhcp6Reply(DHCP6 relayPacket) {
public static boolean isDhcp6Reply(DHCP6 relayPacket) {
DHCP6 leafDhcp6 = getDhcp6Leaf(relayPacket);
if (leafDhcp6 != null) {
if (leafDhcp6.getMsgType() == DHCP6.MsgType.REPLY.value()) {
@ -291,7 +302,7 @@ public class Dhcp6HandlerUtil {
* @param dhcp6Payload dhcp6 packet
* @return boolean dhcp6 contains release
*/
public boolean isDhcp6Release(DHCP6 dhcp6Payload) {
public static boolean isDhcp6Release(DHCP6 dhcp6Payload) {
if (dhcp6Payload.getMsgType() == DHCP6.MsgType.RELEASE.value()) {
log.debug("isDhcp6Release true.");
return true; // must be directly connected
@ -319,7 +330,7 @@ public class Dhcp6HandlerUtil {
* @param msgTypeVal msgType byte of dhcp6 packet
* @return String string value of dhcp6 msg type
*/
public String getMsgTypeStr(byte msgTypeVal) {
public static String getMsgTypeStr(byte msgTypeVal) {
MsgType msgType = DHCP6.MsgType.getType(msgTypeVal);
return DHCP6.MsgType.getMsgTypeStr(msgType);
}
@ -331,7 +342,7 @@ public class Dhcp6HandlerUtil {
* @param dhcp6Packet dhcp6 packet
* @return String string value of dhcp6 leaf packet msg type
*/
public String findLeafMsgType(boolean directConnFlag, DHCP6 dhcp6Packet) {
public static String findLeafMsgType(boolean directConnFlag, DHCP6 dhcp6Packet) {
if (directConnFlag) {
return getMsgTypeStr(dhcp6Packet.getMsgType());
} else {
@ -351,7 +362,7 @@ public class Dhcp6HandlerUtil {
* @param vlanId the vlan id
* @return true if the Interface contains the vlan id
*/
public boolean interfaceContainsVlan(Interface iface, VlanId vlanId) {
public static boolean interfaceContainsVlan(Interface iface, VlanId vlanId) {
if (vlanId.equals(VlanId.NONE)) {
// untagged packet, check if vlan untagged or vlan native is not NONE
return !iface.vlanUntagged().equals(VlanId.NONE) ||
@ -361,27 +372,13 @@ public class Dhcp6HandlerUtil {
return iface.vlanTagged().contains(vlanId);
}
/**
* the new class the contains Ethernet packet and destination port.
*/
public class InternalPacket {
Ethernet packet;
ConnectPoint destLocation;
public InternalPacket(Ethernet newPacket, ConnectPoint newLocation) {
packet = newPacket;
destLocation = newLocation;
}
void setLocation(ConnectPoint newLocation) {
destLocation = newLocation;
}
}
/**
* Check if the host is directly connected to the network or not.
*
* @param dhcp6Payload the dhcp6 payload
* @return true if the host is directly connected to the network; false otherwise
*/
public boolean directlyConnected(DHCP6 dhcp6Payload) {
public static boolean directlyConnected(DHCP6 dhcp6Payload) {
log.debug("directlyConnected enters");
if (dhcp6Payload.getMsgType() == DHCP6.MsgType.LEASEQUERY.value() ||
@ -405,7 +402,8 @@ public class Dhcp6HandlerUtil {
return false;
} else {
// relay-reply
if (dhcp6Payload2.getMsgType() != DHCP6.MsgType.RELAY_REPL.value()) {
if (dhcp6Payload2.getMsgType() != DHCP6.MsgType.RELAY_REPL.value()
&& dhcp6Payload2.getMsgType() != MsgType.LEASEQUERY_REPLY.value()) {
log.debug("directlyConnected true. 2nd MsgType {}", dhcp6Payload2.getMsgType());
return true; // must be directly connected
} else {
@ -425,7 +423,7 @@ public class Dhcp6HandlerUtil {
* @param serverInfo server info to check
* @return true if server info has v6 ip address; false otherwise
*/
public boolean isServerIpEmpty(DhcpServerInfo serverInfo) {
public static boolean isServerIpEmpty(DhcpServerInfo serverInfo) {
if (!serverInfo.getDhcpServerIp6().isPresent()) {
log.warn("DhcpServerIp not available, use default DhcpServerIp {}",
HexString.toHexString(serverInfo.getDhcpServerIp6().get().toOctets()));
@ -434,7 +432,7 @@ public class Dhcp6HandlerUtil {
return false;
}
private boolean isConnectMacEmpty(DhcpServerInfo serverInfo, Set<Interface> clientInterfaces) {
private static boolean isConnectMacEmpty(DhcpServerInfo serverInfo, Set<Interface> clientInterfaces) {
if (!serverInfo.getDhcpConnectMac().isPresent()) {
log.warn("DHCP6 {} not yet resolved .. Aborting DHCP "
+ "packet processing from client on port: {}",
@ -446,7 +444,7 @@ public class Dhcp6HandlerUtil {
return false;
}
private boolean isRelayAgentIpFromCfgEmpty(DhcpServerInfo serverInfo, DeviceId receivedFromDevice) {
private static boolean isRelayAgentIpFromCfgEmpty(DhcpServerInfo serverInfo, DeviceId receivedFromDevice) {
if (!serverInfo.getRelayAgentIp6(receivedFromDevice).isPresent()) {
log.warn("indirect connection: relayAgentIp NOT availale from config file! Use dynamic.");
return true;
@ -454,7 +452,7 @@ public class Dhcp6HandlerUtil {
return false;
}
private Dhcp6Option getInterfaceIdIdOption(PacketContext context, Ethernet clientPacket) {
private static Dhcp6Option getInterfaceIdIdOption(PacketContext context, Ethernet clientPacket) {
String inPortString = "-" + context.inPacket().receivedFrom().toString() + ":";
Dhcp6Option interfaceId = new Dhcp6Option();
interfaceId.setCode(DHCP6.OptionCode.INTERFACE_ID.value());
@ -482,7 +480,7 @@ public class Dhcp6HandlerUtil {
return interfaceId;
}
private void addDhcp6OptionsFromClient(List<Dhcp6Option> options, byte[] dhcp6PacketByte,
private static void addDhcp6OptionsFromClient(List<Dhcp6Option> options, byte[] dhcp6PacketByte,
PacketContext context, Ethernet clientPacket) {
Dhcp6Option relayMessage = new Dhcp6Option();
relayMessage.setCode(DHCP6.OptionCode.RELAY_MSG.value());
@ -504,7 +502,7 @@ public class Dhcp6HandlerUtil {
* @param serverInterface target server interface
* @return ethernet packet with dhcp6 packet info
*/
public Ethernet buildDhcp6PacketFromClient(PacketContext context, Ethernet clientPacket,
public static Ethernet buildDhcp6PacketFromClient(PacketContext context, Ethernet clientPacket,
Set<Interface> clientInterfaces, DhcpServerInfo serverInfo,
Interface serverInterface) {
ConnectPoint receivedFrom = context.inPacket().receivedFrom();
@ -604,7 +602,7 @@ public class Dhcp6HandlerUtil {
* @param serverInfo server to check its connect point
* @return boolean true if serverInfo is found; false otherwise
*/
public boolean checkDhcpServerConnPt(boolean directConnFlag,
public static boolean checkDhcpServerConnPt(boolean directConnFlag,
DhcpServerInfo serverInfo) {
if (serverInfo.getDhcpServerConnectPoint() == null) {
log.warn("DHCP6 server connect point for {} connPt {}",

8
apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java
View File

@ -56,15 +56,15 @@ import org.onosproject.dhcprelay.api.DhcpHandler;
import org.onosproject.dhcprelay.api.DhcpRelayService;
import org.onosproject.dhcprelay.api.DhcpServerInfo;
import org.onosproject.dhcprelay.config.DefaultDhcpRelayConfig;
import org.onosproject.dhcprelay.config.IgnoreDhcpConfig;
import org.onosproject.dhcprelay.config.IndirectDhcpRelayConfig;
import org.onosproject.dhcprelay.config.DhcpServerConfig;
import org.onosproject.dhcprelay.config.EnableDhcpFpmConfig;
import org.onosproject.dhcprelay.config.IndirectDhcpRelayConfig;
import org.onosproject.dhcprelay.config.IgnoreDhcpConfig;
import org.onosproject.dhcprelay.store.DhcpRecord;
import org.onosproject.dhcprelay.store.DhcpRelayStore;
import org.onosproject.dhcprelay.store.DhcpFpmPrefixStore;
import org.onosproject.routing.fpm.api.FpmRecord;
import org.onosproject.net.Device;
import org.onosproject.dhcprelay.config.DhcpServerConfig;
import org.onosproject.net.Host;
import org.onosproject.net.config.Config;
import org.onosproject.net.device.DeviceEvent;
@ -206,7 +206,6 @@ public class DhcpRelayManager implements DhcpRelayService {
label = "Enable DhcpRelay Fpm")
protected boolean dhcpFpmEnabled = false;
private ScheduledExecutorService timerExecutor;
protected DeviceListener deviceListener = new InternalDeviceListener();
@ -321,7 +320,6 @@ public class DhcpRelayManager implements DhcpRelayService {
}
v6Handler.setDhcpFpmEnabled(dhcpFpmEnabled);
}
}
private static List<TrafficSelector> buildClientDhcpSelectors() {

52
apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/InternalPacket.java Normal file
View File

@ -0,0 +1,52 @@
/*
* Copyright 2017-present Open Networking Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.onosproject.dhcprelay;
import org.onlab.packet.Ethernet;
import org.onosproject.net.ConnectPoint;
/**
* Container for Ethernet packet and destination port.
*/
final class InternalPacket {
private Ethernet packet;
private ConnectPoint destLocation;
private InternalPacket(Ethernet newPacket, ConnectPoint newLocation) {
packet = newPacket;
destLocation = newLocation;
}
public Ethernet getPacket() {
return packet;
}
public ConnectPoint getDestLocation() {
return destLocation;
}
/**
* Build {@link InternalPacket} object instance.
*
* @param newPacket {@link Ethernet} packet to be sent
* @param newLocation {@link ConnectPoint} packet destination
* @return new instance of {@link InternalPacket} class
*/
public static InternalPacket internalPacket(Ethernet newPacket, ConnectPoint newLocation) {
return new InternalPacket(newPacket, newLocation);
}
}

13
utils/misc/src/main/java/org/onlab/packet/dhcp/Dhcp6LeaseQueryOption.java
View File

@ -36,9 +36,11 @@ public final class Dhcp6LeaseQueryOption extends Dhcp6Option {
//public short QueryType;
public Ip6Address linkAddress;
private List<Dhcp6Option> options;
public byte queryType;
public Dhcp6LeaseQueryOption(Dhcp6Option dhcp6Option) {
super(dhcp6Option);
options = Lists.newArrayList();
}
@Override
@ -66,10 +68,10 @@ public final class Dhcp6LeaseQueryOption extends Dhcp6Option {
Dhcp6LeaseQueryOption lQ6Option = new Dhcp6LeaseQueryOption(dhcp6Option);
byte[] optionData = lQ6Option.getData();
if (optionData.length >= 61) { // 61 is LQ option length + 4 header
if (optionData.length >= DEFAULT_LEN) {
ByteBuffer bb = ByteBuffer.wrap(optionData);
// fetch the Query type - just pop the byte from the byte buffer for subsequent parsing...
bb.get();
lQ6Option.queryType = bb.get();
byte[] ipv6Addr = new byte[16];
bb.get(ipv6Addr);
lQ6Option.linkAddress = Ip6Address.valueOf(ipv6Addr);
@ -108,10 +110,13 @@ public final class Dhcp6LeaseQueryOption extends Dhcp6Option {
@Override
public byte[] serialize() {
ByteBuffer bb = ByteBuffer.allocate(this.getLength() + Dhcp6Option.DEFAULT_LEN);
byte[] serializedPayload = payload.serialize();
ByteBuffer bb = ByteBuffer.allocate(serializedPayload.length + Dhcp6Option.DEFAULT_LEN);
bb.putShort(getCode());
bb.putShort(getLength());
bb.put(payload.serialize());
bb.put(serializedPayload);
return bb.array();
}