Examples with IpPrefix org.onlab.packet.IpPrefix used on opensource projects

Example 41 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class BgpUpdateMsgVer4 method parseNlri.

/**
 * Parses NLRI from channel buffer.
 *
 * @param cb channelBuffer
 * @return list of IP Prefix
 * @throws BgpParseException while parsing NLRI
 */
public static LinkedList<IpPrefix> parseNlri(ChannelBuffer cb) throws BgpParseException {
    LinkedList<IpPrefix> nlri = new LinkedList<>();
    while (cb.readableBytes() > 0) {
        int length = cb.readByte();
        IpPrefix ipPrefix;
        if (length == 0) {
            byte[] prefix = new byte[] { 0 };
            ipPrefix = Validation.bytesToPrefix(prefix, length);
            nlri.add(ipPrefix);
        } else {
            int len = length / BYTE_IN_BITS;
            int reminder = length % BYTE_IN_BITS;
            if (reminder > 0) {
                len = len + 1;
            }
            if (cb.readableBytes() < len) {
                Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.MALFORMED_ATTRIBUTE_LIST, cb.readableBytes());
            }
            byte[] prefix = new byte[len];
            cb.readBytes(prefix, 0, len);
            ipPrefix = Validation.bytesToPrefix(prefix, length);
            nlri.add(ipPrefix);
        }
    }
    return nlri;
}

Example 42 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class BgpFsSourcePrefix method read.

/**
 * Reads the channel buffer and returns object of IPv4AddressTlv.
 *
 * @param cb channelBuffer
 * @return object of flow spec source prefix
 * @throws BgpParseException while parsing BgpFsSourcePrefix
 */
public static BgpFsSourcePrefix read(ChannelBuffer cb) throws BgpParseException {
    IpPrefix ipPrefix;
    int length = cb.readByte();
    if (length == 0) {
        byte[] prefix = new byte[] { 0 };
        ipPrefix = Validation.bytesToPrefix(prefix, length);
        return new BgpFsSourcePrefix((byte) ipPrefix.prefixLength(), ipPrefix);
    }
    int len = length / BYTE_IN_BITS;
    int reminder = length % BYTE_IN_BITS;
    if (reminder > 0) {
        len = len + 1;
    }
    if (cb.readableBytes() < len) {
        Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.MALFORMED_ATTRIBUTE_LIST, cb.readableBytes());
    }
    byte[] prefix = new byte[len];
    cb.readBytes(prefix, 0, len);
    ipPrefix = Validation.bytesToPrefix(prefix, length);
    return new BgpFsSourcePrefix((byte) ipPrefix.prefixLength(), ipPrefix);
}

Example 43 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class FpmManager method fpmMessage.

private void fpmMessage(FpmPeer peer, FpmHeader fpmMessage) {
    if (fpmMessage.type() == FpmHeader.FPM_TYPE_KEEPALIVE) {
        return;
    }
    Netlink netlink = fpmMessage.netlink();
    RtNetlink rtNetlink = netlink.rtNetlink();
    if (log.isTraceEnabled()) {
        log.trace("Received FPM message: {}", fpmMessage);
    }
    if (!(rtNetlink.protocol() == RtProtocol.ZEBRA || rtNetlink.protocol() == RtProtocol.UNSPEC)) {
        log.trace("Ignoring non-zebra route");
        return;
    }
    IpAddress dstAddress = null;
    IpAddress gateway = null;
    for (RouteAttribute attribute : rtNetlink.attributes()) {
        if (attribute.type() == RouteAttribute.RTA_DST) {
            RouteAttributeDst raDst = (RouteAttributeDst) attribute;
            dstAddress = raDst.dstAddress();
        } else if (attribute.type() == RouteAttribute.RTA_GATEWAY) {
            RouteAttributeGateway raGateway = (RouteAttributeGateway) attribute;
            gateway = raGateway.gateway();
        }
    }
    if (dstAddress == null) {
        log.error("Dst address missing!");
        return;
    }
    IpPrefix prefix = IpPrefix.valueOf(dstAddress, rtNetlink.dstLength());
    // Ignore routes that we sent.
    if (gateway != null && ((prefix.isIp4() && pdPushNextHopIPv4 != null && pdPushNextHopIPv4.contains(gateway.getIp4Address())) || (prefix.isIp6() && pdPushNextHopIPv6 != null && pdPushNextHopIPv6.contains(gateway.getIp6Address())))) {
        if (routeInDhcpStore(prefix) || routeInRipStore(prefix)) {
            return;
        }
    }
    List<Route> updates = new LinkedList<>();
    List<Route> withdraws = new LinkedList<>();
    Route route;
    switch(netlink.type()) {
        case RTM_NEWROUTE:
            if (gateway == null) {
                // We ignore interface routes with no gateway for now.
                return;
            }
            route = new Route(Route.Source.FPM, prefix, gateway, clusterService.getLocalNode().id());
            Route oldRoute = fpmRoutes.get(peer).put(prefix, route);
            if (oldRoute != null) {
                log.trace("Swapping {} with {}", oldRoute, route);
                withdraws.add(oldRoute);
            }
            updates.add(route);
            break;
        case RTM_DELROUTE:
            Route existing = fpmRoutes.get(peer).remove(prefix);
            if (existing == null) {
                log.warn("Got delete for non-existent prefix");
                return;
            }
            route = new Route(Route.Source.FPM, prefix, existing.nextHop(), clusterService.getLocalNode().id());
            withdraws.add(route);
            break;
        case RTM_GETROUTE:
        default:
            break;
    }
    updateRouteStore(updates, withdraws);
}

Example 44 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class ConnectivityIntentCommand method buildTrafficSelector.

/**
 * Constructs a traffic selector based on the command line arguments
 * presented to the command.
 * @return traffic selector
 */
protected TrafficSelector buildTrafficSelector() {
    IpPrefix srcIpPrefix = null;
    IpPrefix dstIpPrefix = null;
    TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder();
    if (!isNullOrEmpty(srcIpString)) {
        srcIpPrefix = IpPrefix.valueOf(srcIpString);
        if (srcIpPrefix.isIp4()) {
            selectorBuilder.matchIPSrc(srcIpPrefix);
        } else {
            selectorBuilder.matchIPv6Src(srcIpPrefix);
        }
    }
    if (!isNullOrEmpty(dstIpString)) {
        dstIpPrefix = IpPrefix.valueOf(dstIpString);
        if (dstIpPrefix.isIp4()) {
            selectorBuilder.matchIPDst(dstIpPrefix);
        } else {
            selectorBuilder.matchIPv6Dst(dstIpPrefix);
        }
    }
    if ((srcIpPrefix != null) && (dstIpPrefix != null) && (srcIpPrefix.version() != dstIpPrefix.version())) {
        // ERROR: IP src/dst version mismatch
        throw new IllegalArgumentException("IP source and destination version mismatch");
    }
    // 
    // Set the default EthType based on the IP version if the matching
    // source or destination IP prefixes.
    // 
    Short ethType = null;
    if ((srcIpPrefix != null) && srcIpPrefix.isIp6()) {
        ethType = EthType.IPV6.value();
    }
    if ((dstIpPrefix != null) && dstIpPrefix.isIp6()) {
        ethType = EthType.IPV6.value();
    }
    if (!isNullOrEmpty(ethTypeString)) {
        ethType = EthType.parseFromString(ethTypeString);
    }
    if (ethType != null) {
        selectorBuilder.matchEthType(ethType);
    }
    if (!isNullOrEmpty(vlanString)) {
        selectorBuilder.matchVlanId(VlanId.vlanId(Short.parseShort(vlanString)));
    }
    if (!isNullOrEmpty(srcMacString)) {
        selectorBuilder.matchEthSrc(MacAddress.valueOf(srcMacString));
    }
    if (!isNullOrEmpty(dstMacString)) {
        selectorBuilder.matchEthDst(MacAddress.valueOf(dstMacString));
    }
    if (!isNullOrEmpty(ipProtoString)) {
        short ipProtoShort = IpProtocol.parseFromString(ipProtoString);
        selectorBuilder.matchIPProtocol((byte) ipProtoShort);
    }
    if (!isNullOrEmpty(fLabelString)) {
        selectorBuilder.matchIPv6FlowLabel(Integer.parseInt(fLabelString));
    }
    if (!isNullOrEmpty(icmp6TypeString)) {
        byte icmp6Type = Icmp6Type.parseFromString(icmp6TypeString);
        selectorBuilder.matchIcmpv6Type(icmp6Type);
    }
    if (!isNullOrEmpty(icmp6CodeString)) {
        byte icmp6Code = Icmp6Code.parseFromString(icmp6CodeString);
        selectorBuilder.matchIcmpv6Code(icmp6Code);
    }
    if (!isNullOrEmpty(ndTargetString)) {
        selectorBuilder.matchIPv6NDTargetAddress(Ip6Address.valueOf(ndTargetString));
    }
    if (!isNullOrEmpty(ndSllString)) {
        selectorBuilder.matchIPv6NDSourceLinkLayerAddress(MacAddress.valueOf(ndSllString));
    }
    if (!isNullOrEmpty(ndTllString)) {
        selectorBuilder.matchIPv6NDTargetLinkLayerAddress(MacAddress.valueOf(ndTllString));
    }
    if (!isNullOrEmpty(srcTcpString)) {
        selectorBuilder.matchTcpSrc(TpPort.tpPort(Integer.parseInt(srcTcpString)));
    }
    if (!isNullOrEmpty(dstTcpString)) {
        selectorBuilder.matchTcpDst(TpPort.tpPort(Integer.parseInt(dstTcpString)));
    }
    if (extHdrStringList != null) {
        short extHdr = 0;
        for (String extHdrString : extHdrStringList) {
            extHdr = (short) (extHdr | ExtHeader.parseFromString(extHdrString));
        }
        selectorBuilder.matchIPv6ExthdrFlags(extHdr);
    }
    return selectorBuilder.build();
}

Example 45 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class LispExtensionMappingAddressInterpreter method afi2mapping.

/**
 * Converts AFI address to generalized mapping address.
 *
 * @param afi IP typed AFI address
 * @return generalized mapping address
 */
private MappingAddress afi2mapping(LispAfiAddress afi) {
    switch(afi.getAfi()) {
        case IP4:
            IpAddress ipv4Address = ((LispIpv4Address) afi).getAddress();
            IpPrefix ipv4Prefix = IpPrefix.valueOf(ipv4Address, IPV4_PREFIX_LENGTH);
            return MappingAddresses.ipv4MappingAddress(ipv4Prefix);
        case IP6:
            IpAddress ipv6Address = ((LispIpv6Address) afi).getAddress();
            IpPrefix ipv6Prefix = IpPrefix.valueOf(ipv6Address, IPV6_PREFIX_LENGTH);
            return MappingAddresses.ipv6MappingAddress(ipv6Prefix);
        default:
            log.warn("Only support to convert IP address type");
            break;
    }
    return null;
}