Examples with Dhcp6ClientIdOption org.onlab.packet.dhcp.Dhcp6ClientIdOption used on opensource projects

Example 1 with Dhcp6ClientIdOption

use of org.onlab.packet.dhcp.Dhcp6ClientIdOption in project onos by opennetworkinglab.

the class Dhcp6HandlerImpl method removeHostOrRoute.

/**
 * remove host or route and update dhcp relay record attributes.
 *
 * @param directConnFlag  flag to show that packet is from directly connected client
 * @param location  client side connect point
 * @param dhcp6Packet the dhcp6 payload
 * @param clientPacket client's ethernet packet
 * @param clientIpv6 client's Ipv6 packet
 * @param clientInterface client interfaces
 */
private void removeHostOrRoute(boolean directConnFlag, ConnectPoint location, DHCP6 dhcp6Packet, Ethernet clientPacket, IPv6 clientIpv6, Interface clientInterface) {
    log.debug("removeHostOrRoute  enters {}", dhcp6Packet);
    VlanId vlanId = clientInterface.vlan();
    // could be gw or host
    MacAddress srcMac = clientPacket.getSourceMAC();
    MacAddress leafClientMac;
    byte leafMsgType;
    log.debug("client mac {} client vlan {}", HexString.toHexString(srcMac.toBytes(), ":"), vlanId);
    Dhcp6ClientIdOption clientIdOption = Dhcp6HandlerUtil.extractClientId(directConnFlag, dhcp6Packet);
    if (clientIdOption != null) {
        if ((clientIdOption.getDuid().getDuidType() == Dhcp6Duid.DuidType.DUID_LLT) || (clientIdOption.getDuid().getDuidType() == Dhcp6Duid.DuidType.DUID_LL)) {
            leafClientMac = MacAddress.valueOf(clientIdOption.getDuid().getLinkLayerAddress());
        } else {
            log.warn("Link-Layer Address not supported in CLIENTID option. No DhcpRelay Record created.");
            // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_LINKLOCAL_FAIL);
            return;
        }
    } else {
        log.warn("CLIENTID option NOT found. Don't create DhcpRelay Record.");
        // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_CLIENTID_FAIL);
        return;
    }
    HostId leafHostId = HostId.hostId(leafClientMac, vlanId);
    DhcpRecord record = dhcpRelayStore.getDhcpRecord(leafHostId).orElse(null);
    if (record == null) {
        record = new DhcpRecord(leafHostId);
    } else {
        record = record.clone();
    }
    Boolean isMsgRelease = Dhcp6HandlerUtil.isDhcp6Release(dhcp6Packet);
    IpAddressInfo ipInfo;
    PdPrefixInfo pdInfo = null;
    if (directConnFlag) {
        // Add to host store if it is connected to network directly
        ipInfo = extractIpAddress(dhcp6Packet);
        if (ipInfo != null) {
            if (isMsgRelease) {
                HostId hostId = HostId.hostId(srcMac, vlanId);
                log.debug("remove Host {} ip for directly connected.", hostId.toString());
                providerService.removeIpFromHost(hostId, ipInfo.ip6Address);
            }
        } else {
            log.debug("ipAddress not found. Do not remove Host {} for directly connected.", HostId.hostId(srcMac, vlanId).toString());
        }
        leafMsgType = dhcp6Packet.getMsgType();
    } else {
        // Remove from route store if it is not connected to network directly
        // pick out the first link-local ip address
        IpAddress nextHopIp = getFirstIpByHost(directConnFlag, srcMac, vlanId);
        if (nextHopIp == null) {
            log.warn("Can't find link-local IP address of gateway mac {} vlanId {}", srcMac, vlanId);
            // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_LINKLOCAL_GW);
            return;
        }
        DHCP6 leafDhcp = Dhcp6HandlerUtil.getDhcp6Leaf(dhcp6Packet);
        ipInfo = extractIpAddress(leafDhcp);
        if (ipInfo == null) {
            log.debug("ip is null");
        } else {
            if (isMsgRelease) {
                Route routeForIP = new Route(Route.Source.DHCP, ipInfo.ip6Address.toIpPrefix(), nextHopIp);
                log.debug("removing route of 128 address for indirectly connected.");
                log.debug("128 ip {}, nexthop {}", HexString.toHexString(ipInfo.ip6Address.toOctets(), ":"), HexString.toHexString(nextHopIp.toOctets(), ":"));
                routeStore.removeRoute(routeForIP);
            }
        }
        pdInfo = extractPrefix(leafDhcp);
        if (pdInfo == null) {
            log.debug("ipPrefix is null ");
        } else {
            if (isMsgRelease) {
                Route routeForPrefix = new Route(Route.Source.DHCP, pdInfo.pdPrefix, nextHopIp);
                log.debug("removing route of PD for indirectly connected.");
                log.debug("pd ip {}, nexthop {}", HexString.toHexString(pdInfo.pdPrefix.address().toOctets(), ":"), HexString.toHexString(nextHopIp.toOctets(), ":"));
                routeStore.removeRoute(routeForPrefix);
                if (this.dhcpFpmEnabled) {
                    dhcpFpmPrefixStore.removeFpmRecord(pdInfo.pdPrefix);
                }
            }
        }
        leafMsgType = leafDhcp.getMsgType();
    }
    if (isMsgRelease) {
        log.debug("DHCP6 RELEASE msg.");
        if (record != null) {
            if (ipInfo != null) {
                log.debug("DhcpRelay Record ip6Address is set to null.");
                record.ip6Address(null);
            }
            if (pdInfo != null) {
                log.debug("DhcpRelay Record pdPrefix is set to null.");
            }
            if (!record.ip6Address().isPresent() && !record.pdPrefix().isPresent()) {
                log.warn("IP6 address and IP6 PD both are null. Remove record.");
            // do not remove a record. Let timer task handler it.
            // dhcpRelayStore.removeDhcpRecord(HostId.hostId(leafClientMac, vlanId));
            }
        }
    }
    if (record != null) {
        record.getV6Counters().incrementCounter(Dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
        record.addLocation(new HostLocation(location, System.currentTimeMillis()));
        record.ip6Status(DHCP6.MsgType.getType(leafMsgType));
        record.setDirectlyConnected(directConnFlag);
        if (!directConnFlag) {
            // Update gateway mac address if the host is not directly connected
            record.nextHop(srcMac);
        }
        record.updateLastSeen();
    }
    dhcpRelayStore.updateDhcpRecord(leafHostId, record);
/*
        // TODO Use AtomicInteger for the counters
        try {
            recordSemaphore.acquire();
            try {
                dhcpRelayCountersStore.incrementCounter(gCount, Dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
            } finally {
                // calling release() after a successful acquire()
                recordSemaphore.release();
            }
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
        */
}

Example 2 with Dhcp6ClientIdOption

use of org.onlab.packet.dhcp.Dhcp6ClientIdOption in project onos by opennetworkinglab.

the class Dhcp6HandlerUtil method extractClientId.

/**
 * extract from dhcp6 packet ClientIdOption.
 *
 * @param directConnFlag directly connected host
 * @param dhcp6Payload the dhcp6 payload
 * @return Dhcp6ClientIdOption clientIdOption, or null if not exists.
 */
static Dhcp6ClientIdOption extractClientId(Boolean directConnFlag, DHCP6 dhcp6Payload) {
    Dhcp6ClientIdOption clientIdOption;
    if (directConnFlag) {
        clientIdOption = dhcp6Payload.getOptions().stream().filter(opt -> opt instanceof Dhcp6ClientIdOption).map(opt -> (Dhcp6ClientIdOption) opt).findFirst().orElse(null);
    } else {
        DHCP6 leafDhcp = Dhcp6HandlerUtil.getDhcp6Leaf(dhcp6Payload);
        clientIdOption = leafDhcp.getOptions().stream().filter(opt -> opt instanceof Dhcp6ClientIdOption).map(opt -> (Dhcp6ClientIdOption) opt).findFirst().orElse(null);
    }
    return clientIdOption;
}

Example 3 with Dhcp6ClientIdOption

use of org.onlab.packet.dhcp.Dhcp6ClientIdOption in project onos by opennetworkinglab.

the class Dhcp6HandlerImpl method addHostOrRoute.

/**
 * add host or route and update dhcp relay record.
 *
 * @param directConnFlag  flag to show that packet is from directly connected client
 * @param location  client side connect point
 * @param dhcp6Relay the dhcp6 payload
 * @param embeddedDhcp6 the dhcp6 payload within relay
 * @param srcMac client gw/host macAddress
 * @param clientInterface client interface
 * @param vlanIdInUse vlanid encoded in the interface id Option
 */
private void addHostOrRoute(boolean directConnFlag, ConnectPoint location, DHCP6 dhcp6Relay, DHCP6 embeddedDhcp6, MacAddress srcMac, Interface clientInterface, VlanId vlanIdInUse) {
    log.debug("addHostOrRoute entered.");
    VlanId vlanId;
    if (clientInterface.vlanTagged().isEmpty()) {
        vlanId = clientInterface.vlan();
    } else {
        // might be multiple vlan in same interface
        vlanId = vlanIdInUse;
    }
    if (vlanId == null) {
        vlanId = VlanId.NONE;
    }
    Boolean isMsgReply = Dhcp6HandlerUtil.isDhcp6Reply(dhcp6Relay);
    MacAddress leafClientMac;
    Byte leafMsgType;
    Dhcp6ClientIdOption clientIdOption = Dhcp6HandlerUtil.extractClientId(directConnFlag, embeddedDhcp6);
    if (clientIdOption != null) {
        log.debug("CLIENTID option found {}", clientIdOption);
        if ((clientIdOption.getDuid().getDuidType() == Dhcp6Duid.DuidType.DUID_LLT) || (clientIdOption.getDuid().getDuidType() == Dhcp6Duid.DuidType.DUID_LL)) {
            leafClientMac = MacAddress.valueOf(clientIdOption.getDuid().getLinkLayerAddress());
        } else {
            log.warn("Link-Layer Address not supported in CLIENTID option. No DhcpRelay Record created.");
            // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_LINKLOCAL_FAIL);
            return;
        }
    } else {
        log.warn("CLIENTID option NOT found. No DhcpRelay Record created.");
        // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_CLIENTID_FAIL);
        return;
    }
    HostId leafHostId = HostId.hostId(leafClientMac, vlanId);
    DhcpRecord record = dhcpRelayStore.getDhcpRecord(leafHostId).orElse(null);
    if (record == null) {
        record = new DhcpRecord(HostId.hostId(leafClientMac, vlanId));
    } else {
        record = record.clone();
    }
    IpAddressInfo ipInfo;
    PdPrefixInfo pdInfo = null;
    if (directConnFlag) {
        // Add to host store if it connect to network directly
        ipInfo = extractIpAddress(embeddedDhcp6);
        if (ipInfo != null) {
            if (isMsgReply) {
                Set<IpAddress> ips = Sets.newHashSet(ipInfo.ip6Address);
                HostId hostId = HostId.hostId(srcMac, vlanId);
                Host host = hostService.getHost(hostId);
                HostLocation hostLocation = new HostLocation(clientInterface.connectPoint(), System.currentTimeMillis());
                Set<HostLocation> hostLocations = Sets.newHashSet(hostLocation);
                if (host != null) {
                    // Dual homing support:
                    // if host exists, use old locations and new location
                    hostLocations.addAll(host.locations());
                }
                HostDescription desc = new DefaultHostDescription(srcMac, vlanId, hostLocations, ips, false);
                log.debug("adding Host for directly connected.");
                log.debug("client mac {} client vlan {} hostlocation {}", HexString.toHexString(srcMac.toBytes(), ":"), vlanId, hostLocation.toString());
                // Replace the ip when dhcp server give the host new ip address
                providerService.hostDetected(hostId, desc, false);
            }
        } else {
            log.warn("ipAddress not found. Do not add Host {} for directly connected.", HostId.hostId(srcMac, vlanId).toString());
        }
        leafMsgType = embeddedDhcp6.getMsgType();
    } else {
        // Add to route store if it does not connect to network directly
        // pick out the first link-local ip address
        IpAddress nextHopIp = getFirstIpByHost(directConnFlag, srcMac, vlanId);
        if (nextHopIp == null) {
            log.warn("Can't find link-local IP address of gateway mac {} vlanId {}", srcMac, vlanId);
            // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_LINKLOCAL_GW);
            return;
        }
        DHCP6 leafDhcp = Dhcp6HandlerUtil.getDhcp6Leaf(embeddedDhcp6);
        ipInfo = extractIpAddress(leafDhcp);
        if (ipInfo == null) {
            log.debug("ip is null");
        } else {
            if (isMsgReply) {
                Route routeForIP = new Route(Route.Source.DHCP, ipInfo.ip6Address.toIpPrefix(), nextHopIp);
                log.debug("adding Route of 128 address for indirectly connected.");
                routeStore.replaceRoute(routeForIP);
            }
        }
        pdInfo = extractPrefix(leafDhcp);
        if (pdInfo == null) {
            log.debug("ipPrefix is null ");
        } else {
            if (isMsgReply) {
                Route routeForPrefix = new Route(Route.Source.DHCP, pdInfo.pdPrefix, nextHopIp);
                log.debug("adding Route of PD for indirectly connected.");
                routeStore.replaceRoute(routeForPrefix);
                if (this.dhcpFpmEnabled) {
                    FpmRecord fpmRecord = new FpmRecord(pdInfo.pdPrefix, nextHopIp, FpmRecord.Type.DHCP_RELAY);
                    dhcpFpmPrefixStore.addFpmRecord(pdInfo.pdPrefix, fpmRecord);
                }
            }
        }
        leafMsgType = leafDhcp.getMsgType();
    }
    if (leafMsgType == DHCP6.MsgType.RELEASE.value() || (leafMsgType == DHCP6.MsgType.REPLY.value()) && ipInfo == null) {
        log.warn("DHCP6 RELEASE/REPLY(null ip) from Server. MsgType {}", leafMsgType);
    // return;
    }
    record.addLocation(new HostLocation(location, System.currentTimeMillis()));
    if (leafMsgType == DHCP6.MsgType.REPLY.value()) {
        if (ipInfo != null) {
            log.debug("IP6 address is being stored into dhcp-relay store.");
            log.debug("Client IP6 address {}", HexString.toHexString(ipInfo.ip6Address.toOctets(), ":"));
            record.ip6Address(ipInfo.ip6Address);
            record.updateAddrPrefTime(ipInfo.prefTime);
            record.updateLastIp6Update();
        } else {
            log.debug("IP6 address is not returned from server. Maybe only PD is returned.");
        }
        if (pdInfo != null) {
            log.debug("IP6 PD address {}", HexString.toHexString(pdInfo.pdPrefix.address().toOctets(), ":"));
            record.pdPrefix(pdInfo.pdPrefix);
            record.updatePdPrefTime(pdInfo.prefTime);
            record.updateLastPdUpdate();
        } else {
            log.debug("IP6 PD address is not returned from server. Maybe only IPAddress is returned.");
        }
    }
    record.getV6Counters().incrementCounter(Dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
    record.ip6Status(DHCP6.MsgType.getType(leafMsgType));
    record.setDirectlyConnected(directConnFlag);
    record.updateLastSeen();
    dhcpRelayStore.updateDhcpRecord(leafHostId, record);
/*
        // TODO Use AtomicInteger for the counters
        try {
            recordSemaphore.acquire();
            try {
                dhcpRelayCountersStore.incrementCounter(gCount, Dhcp6HandlerUtil.getMsgTypeStr(leafMsgType));
            } finally {
                // calling release() after a successful acquire()
                recordSemaphore.release();
            }
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
        */
}

Example 4 with Dhcp6ClientIdOption

use of org.onlab.packet.dhcp.Dhcp6ClientIdOption in project onos by opennetworkinglab.

the class Dhcp6HandlerImpl method handleLeaseQuery6ReplyMsg.

public void handleLeaseQuery6ReplyMsg(PacketContext context, DHCP6 dhcp6Payload) {
    ConnectPoint inPort = context.inPacket().receivedFrom();
    log.info("Got LQV6-REPLY on port {}", inPort);
    List<Dhcp6Option> lopt = dhcp6Payload.getOptions();
    log.info("Options list: {}", lopt);
    // find out if this lease is known is
    Dhcp6ClientDataOption clientDataOption = dhcp6Payload.getOptions().stream().filter(opt -> opt instanceof Dhcp6ClientDataOption).map(pld -> (Dhcp6ClientDataOption) pld).findFirst().orElse(null);
    if (clientDataOption == null) {
        log.warn("clientDataOption option is not present, " + "lease is UNKNOWN - not adding any new route...");
    } else {
        Dhcp6IaAddressOption aiAddressOption = clientDataOption.getOptions().stream().filter(opt -> opt instanceof Dhcp6IaAddressOption).map(pld -> (Dhcp6IaAddressOption) pld).findFirst().orElse(null);
        Dhcp6ClientIdOption clientIdOption = clientDataOption.getOptions().stream().filter(opt -> opt instanceof Dhcp6ClientIdOption).map(pld -> (Dhcp6ClientIdOption) pld).findFirst().orElse(null);
        if (aiAddressOption == null) {
            log.warn("clientDataOption from DHCP server does not " + "contains Dhcp6IaAddressOption for the client - giving up...");
        } else {
            Ip6Address clientAddress = aiAddressOption.getIp6Address();
            MacAddress clientMacAddress = MacAddress.valueOf(clientIdOption.getDuid().getLinkLayerAddress());
            Ethernet packet = context.inPacket().parsed();
            VlanId vlanId = VlanId.vlanId(packet.getVlanID());
            MacAddress potentialNextHopMac = findNextHopMacForIp6FromRelayStore(clientAddress, clientMacAddress, vlanId);
            if (potentialNextHopMac == null) {
                log.warn("Can't find next hop host mac for client {} mac:{}/{}", clientAddress, clientMacAddress, vlanId);
                return;
            } else {
                log.info("Next hop mac for {}/{}/{} is {}", clientAddress, clientMacAddress, vlanId, potentialNextHopMac.toString());
            }
            // search the next hop in the hosts store
            HostId gwHostId = HostId.hostId(potentialNextHopMac, vlanId);
            Host gwHost = hostService.getHost(gwHostId);
            if (gwHost == null) {
                log.warn("Can't find next hop host ID {}", gwHostId);
                return;
            }
            Ip6Address nextHopIp = gwHost.ipAddresses().stream().filter(IpAddress::isIp6).filter(IpAddress::isLinkLocal).map(IpAddress::getIp6Address).findFirst().orElse(null);
            if (nextHopIp == null) {
                log.warn("Can't find IP6 address of next hop {}", gwHost);
                return;
            }
            log.info("client " + clientAddress + " is known !");
            Route routeForIP6 = new Route(Route.Source.DHCP, clientAddress.toIpPrefix(), nextHopIp);
            log.debug("updating route of Client for indirectly connected.");
            log.debug("client ip: " + clientAddress + ", next hop ip6: " + nextHopIp);
            routeStore.updateRoute(routeForIP6);
        }
    }
}

Example 5 with Dhcp6ClientIdOption

use of org.onlab.packet.dhcp.Dhcp6ClientIdOption in project onos by opennetworkinglab.

the class DhcpRelayManagerTest method buildDhcp6Packet.

/**
 * Generates DHCP6 REQUEST packet.
 */
private void buildDhcp6Packet(DHCP6 dhcp6, byte msgType, Ip6Address ip6Addr, IpPrefix prefix) {
    // build address option
    Dhcp6IaAddressOption iaAddressOption = new Dhcp6IaAddressOption();
    iaAddressOption.setCode(DHCP6.OptionCode.IAADDR.value());
    iaAddressOption.setIp6Address(ip6Addr);
    iaAddressOption.setPreferredLifetime(3600);
    iaAddressOption.setValidLifetime(1200);
    iaAddressOption.setLength((short) Dhcp6IaAddressOption.DEFAULT_LEN);
    Dhcp6ClientIdOption clientIdOption = new Dhcp6ClientIdOption();
    Dhcp6Duid dhcp6Duip = new Dhcp6Duid();
    dhcp6Duip.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
    // Ethernet
    dhcp6Duip.setHardwareType((short) 0x01);
    dhcp6Duip.setDuidTime(1234);
    dhcp6Duip.setLinkLayerAddress(CLIENT_MAC.toBytes());
    clientIdOption.setDuid(dhcp6Duip);
    Dhcp6IaNaOption iaNaOption = new Dhcp6IaNaOption();
    iaNaOption.setCode(DHCP6.OptionCode.IA_NA.value());
    iaNaOption.setIaId(0);
    iaNaOption.setT1(302400);
    iaNaOption.setT2(483840);
    List<Dhcp6Option> iaNaSubOptions = new ArrayList<Dhcp6Option>();
    iaNaSubOptions.add(iaAddressOption);
    iaNaOption.setOptions(iaNaSubOptions);
    iaNaOption.setLength((short) (Dhcp6IaNaOption.DEFAULT_LEN + iaAddressOption.getLength()));
    // build prefix option
    Dhcp6IaPrefixOption iaPrefixOption = new Dhcp6IaPrefixOption();
    iaPrefixOption.setCode(DHCP6.OptionCode.IAPREFIX.value());
    iaPrefixOption.setIp6Prefix(prefix.address().getIp6Address());
    iaPrefixOption.setPrefixLength((byte) prefix.prefixLength());
    iaPrefixOption.setPreferredLifetime(3601);
    iaPrefixOption.setValidLifetime(1201);
    iaPrefixOption.setLength((short) Dhcp6IaPrefixOption.DEFAULT_LEN);
    Dhcp6IaPdOption iaPdOption = new Dhcp6IaPdOption();
    iaPdOption.setCode(DHCP6.OptionCode.IA_PD.value());
    iaPdOption.setIaId(0);
    iaPdOption.setT1(302401);
    iaPdOption.setT2(483841);
    List<Dhcp6Option> iaPdSubOptions = new ArrayList<Dhcp6Option>();
    iaPdSubOptions.add(iaPrefixOption);
    iaPdOption.setOptions(iaPdSubOptions);
    iaPdOption.setLength((short) (Dhcp6IaPdOption.DEFAULT_LEN + iaPrefixOption.getLength()));
    dhcp6.setMsgType(msgType);
    List<Dhcp6Option> dhcp6Options = new ArrayList<Dhcp6Option>();
    dhcp6Options.add(iaNaOption);
    dhcp6Options.add(clientIdOption);
    dhcp6Options.add(iaPdOption);
    dhcp6.setOptions(dhcp6Options);
}