diff options
Diffstat (limited to 'framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOspfFwdAddr.java')
| -rw-r--r-- | framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOspfFwdAddr.java | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOspfFwdAddr.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOspfFwdAddr.java new file mode 100644 index 00000000..4e9db1ee --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOspfFwdAddr.java @@ -0,0 +1,193 @@ +/* + * Copyright 2015 Open Networking Laboratory + * + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip4Address; +import org.onlab.packet.Ip6Address; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP prefix OSPF Forwarding address attribute. + */ +public class BgpPrefixAttrOspfFwdAddr implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpPrefixAttrOspfFwdAddr.class); + + public static final int ATTR_PREFIX_OSPFFWDADDR = 1156; + public static final int IPV4_LEN = 4; + public static final int IPV6_LEN = 16; + + /* OSPF Forwarding Address */ + private final short lsAttrLength; + private final Ip4Address ip4RouterId; + private final Ip6Address ip6RouterId; + + /** + * Constructor to initialize the value. + * + * @param lsAttrLength length of the IP address + * @param ip4RouterId Valid IPV4 address if length is 4 else null + * @param ip6RouterId Valid IPV6 address if length is 16 else null + */ + public BgpPrefixAttrOspfFwdAddr(short lsAttrLength, Ip4Address ip4RouterId, + Ip6Address ip6RouterId) { + this.lsAttrLength = lsAttrLength; + this.ip4RouterId = ip4RouterId; + this.ip6RouterId = ip6RouterId; + } + + /** + * Returns object of this class with specified values. + * + * @param lsAttrLength length of the IP address + * @param ip4RouterId Valid IPV4 address if length is 4 else null + * @param ip6RouterId Valid IPV6 address if length is 16 else null + * @return object of BgpPrefixAttrOspfFwdAddr + */ + public static BgpPrefixAttrOspfFwdAddr of(final short lsAttrLength, + final Ip4Address ip4RouterId, + final Ip6Address ip6RouterId) { + return new BgpPrefixAttrOspfFwdAddr(lsAttrLength, ip4RouterId, + ip6RouterId); + } + + /** + * Reads the OSPF Forwarding Address. + * + * @param cb ChannelBuffer + * @return object of BgpPrefixAttrOSPFFwdAddr + * @throws BgpParseException while parsing BgpPrefixAttrOspfFwdAddr + */ + public static BgpPrefixAttrOspfFwdAddr read(ChannelBuffer cb) + throws BgpParseException { + short lsAttrLength; + byte[] ipBytes; + Ip4Address ip4RouterId = null; + Ip6Address ip6RouterId = null; + + lsAttrLength = cb.readShort(); + ipBytes = new byte[lsAttrLength]; + + if ((cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + cb.readBytes(ipBytes); + + if (IPV4_LEN == lsAttrLength) { + ip4RouterId = Ip4Address.valueOf(ipBytes); + } else if (IPV6_LEN == lsAttrLength) { + ip6RouterId = Ip6Address.valueOf(ipBytes); + } + + return BgpPrefixAttrOspfFwdAddr.of(lsAttrLength, ip4RouterId, + ip6RouterId); + } + + /** + * Returns IPV4 Address of OSPF forwarding address. + * + * @return IPV4 address + */ + public Ip4Address ospfv4FwdAddr() { + return ip4RouterId; + } + + /** + * Returns IPV6 Address of OSPF forwarding address. + * + * @return IPV6 address + */ + public Ip6Address ospfv6FwdAddr() { + return ip6RouterId; + } + + /** + * Returns OSPF forwarding address length. + * + * @return length of the ip address + */ + public short ospfFwdAddrLen() { + return lsAttrLength; + } + + @Override + public short getType() { + return ATTR_PREFIX_OSPFFWDADDR; + } + + @Override + public int hashCode() { + if (IPV4_LEN == lsAttrLength) { + return Objects.hash(ip4RouterId); + } else { + return Objects.hash(ip6RouterId); + } + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpPrefixAttrOspfFwdAddr) { + BgpPrefixAttrOspfFwdAddr other = (BgpPrefixAttrOspfFwdAddr) obj; + if (IPV4_LEN == lsAttrLength) { + return Objects.equals(ip4RouterId, other.ip4RouterId); + } else { + return Objects.equals(ip6RouterId, other.ip6RouterId); + } + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + if (IPV4_LEN == lsAttrLength) { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("ip4RouterId", ip4RouterId).toString(); + } else { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("ip6RouterId", ip6RouterId).toString(); + } + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} |