diff options
Diffstat (limited to 'framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/NexthopIPv6addressTlv.java')
| -rw-r--r-- | framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/NexthopIPv6addressTlv.java | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/NexthopIPv6addressTlv.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/NexthopIPv6addressTlv.java new file mode 100644 index 00000000..45bf7ac5 --- /dev/null +++ b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/NexthopIPv6addressTlv.java @@ -0,0 +1,190 @@ +/* + * 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.pcepio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.pcepio.protocol.PcepVersion; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; +import com.google.common.base.MoreObjects.ToStringHelper; + +/** + * NexthopIPv6addressTlv provides Ipv6 address of next hop. + */ +public class NexthopIPv6addressTlv implements PcepValueType { + + /* + Reference: draft-zhao-pce-pcep-extension-for-pce-controller-01. + + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type=TBD | Length = 20 | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + // nexthop IPv6 address (16 bytes) // + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + NEXTHOP-IPV6-ADDRESS TLV: + + */ + protected static final Logger log = LoggerFactory.getLogger(NexthopIPv6addressTlv.class); + + public static final short TYPE = 100; //to be defined + //Length is header + value + public static final short LENGTH = 20; + public static final short VALUE_LENGTH = 16; + + private static final byte[] NONE_VAL = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; + public static final NexthopIPv6addressTlv NONE = new NexthopIPv6addressTlv(NONE_VAL); + + private static final byte[] NO_MASK_VAL = {(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, + (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, + (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF }; + public static final NexthopIPv6addressTlv NO_MASK = new NexthopIPv6addressTlv(NO_MASK_VAL); + public static final NexthopIPv6addressTlv FULL_MASK = NONE; + + private final byte[] rawValue; + + /** + * Constructor to initialize IP address for next hop IPv6 address tlv. + * + * @param rawValue value of Next hop ipAddress + */ + public NexthopIPv6addressTlv(byte[] rawValue) { + log.debug("NexthopIPv6addressTlv"); + this.rawValue = rawValue; + } + + /** + * Creates next hop IPv6 address tlv. + * + * @param raw value of Next hop ipAddress + * @return object of NexthopIPv6addressTlv + */ + //logic to be checked + public static NexthopIPv6addressTlv of(final byte[] raw) { + //check NONE_VAL + boolean bFoundNONE = true; + //value starts from 3rd byte. + for (int i = 5; i < 20; ++i) { + if (NONE_VAL[i] != raw[i]) { + bFoundNONE = false; + } + } + + if (bFoundNONE) { + return NONE; + } + + //check NO_MASK_VAL + boolean bFoundNoMask = true; + //value starts from 3rd byte. + for (int i = 5; i < 20; ++i) { + if (0xFF != raw[i]) { + bFoundNoMask = false; + } + } + if (bFoundNoMask) { + return NO_MASK; + } + return new NexthopIPv6addressTlv(raw); + } + + /** + * Returns next hop IPv6 address. + * + * @return next hop IPv6 address + */ + public byte[] getBytes() { + return rawValue; + } + + @Override + public PcepVersion getVersion() { + return PcepVersion.PCEP_1; + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public short getLength() { + return LENGTH; + } + + @Override + public int hashCode() { + return Objects.hash(rawValue); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof NexthopIPv6addressTlv) { + NexthopIPv6addressTlv other = (NexthopIPv6addressTlv) obj; + return Objects.equals(this.rawValue, other.rawValue); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeBytes(rawValue); + return c.writerIndex() - iStartIndex; + } + + /** + * Reads the channel buffer and returns object of NexthopIPv6addressTlv. + * + * @param c type of channel buffer + * @return object of NexthopIPv6addressTlv + */ + public static NexthopIPv6addressTlv read(ChannelBuffer c) { + byte[] yTemp = new byte[20]; + c.readBytes(yTemp, 0, 20); + return NexthopIPv6addressTlv.of(yTemp); + } + + @Override + public String toString() { + ToStringHelper toStrHelper = MoreObjects.toStringHelper(getClass()); + + toStrHelper.add("Type", TYPE); + toStrHelper.add("Length", LENGTH); + + StringBuffer result = new StringBuffer(); + for (byte b : rawValue) { + result.append(String.format("%02X ", b)); + } + toStrHelper.add("IpAddress", result); + + return toStrHelper.toString(); + } +} |