diff options
Diffstat (limited to 'framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/SrEroSubObject.java')
| -rw-r--r-- | framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/SrEroSubObject.java | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/SrEroSubObject.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/SrEroSubObject.java new file mode 100644 index 00000000..3cbb82c8 --- /dev/null +++ b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/SrEroSubObject.java @@ -0,0 +1,324 @@ +/* + * 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.PcepNai; +import org.onosproject.pcepio.protocol.PcepVersion; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides SrEroSubObject. + */ +public class SrEroSubObject implements PcepValueType { + /* + SR-ERO subobject: (draft-ietf-pce-segment-routing-00) + 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 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + |L| Type | Length | ST | Flags |F|S|C|M| + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | SID | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + // NAI (variable) // + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + + + NAI + + 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 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Local IPv4 address | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Remote IPv4 address | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + NAI for IPv4 Adjacency + + 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 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + // Local IPv6 address (16 bytes) // + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + // Remote IPv6 address (16 bytes) // + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + NAI for IPv6 adjacency + + 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 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Local Node-ID | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Local Interface ID | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Remote Node-ID | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Remote Interface ID | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + NAI for Unnumbered adjacency with IPv4 Node IDs + + */ + protected static final Logger log = LoggerFactory.getLogger(SrEroSubObject.class); + + public static final short TYPE = 0x60; //TODO : type to be defined + public static final short LENGTH = 12; + public static final short VALUE_LENGTH = 10; + public static final int SET = 1; + public static final byte MFLAG_SET = 0x01; + public static final byte CFLAG_SET = 0x02; + public static final byte SFLAG_SET = 0x04; + public static final byte FFLAG_SET = 0x08; + public static final byte SHIFT_ST = 12; + + private final boolean bFFlag; + private final boolean bSFlag; + private final boolean bCFlag; + private final boolean bMFlag; + private final byte st; + + private final int sID; + private final PcepNai nai; + + /** + * Constructor to initialize member variables. + * + * @param st SID type + * @param bFFlag F flag + * @param bSFlag S flag + * @param bCFlag C flag + * @param bMFlag M flag + * @param sID segment identifier value + * @param nai NAI associated with SID + */ + public SrEroSubObject(byte st, boolean bFFlag, boolean bSFlag, boolean bCFlag, boolean bMFlag, int sID, + PcepNai nai) { + this.st = st; + this.bFFlag = bFFlag; + this.bSFlag = bSFlag; + this.bCFlag = bCFlag; + this.bMFlag = bMFlag; + this.sID = sID; + this.nai = nai; + } + + /** + * Creates object of SrEroSubObject. + * + * @param st SID type + * @param bFFlag F flag + * @param bSFlag S flag + * @param bCFlag C flag + * @param bMFlag M flag + * @param sID segment identifier value + * @param nai NAI associated with SID + * @return object of SrEroSubObject + */ + public static SrEroSubObject of(byte st, boolean bFFlag, boolean bSFlag, boolean bCFlag, boolean bMFlag, int sID, + PcepNai nai) { + return new SrEroSubObject(st, bFFlag, bSFlag, bCFlag, bMFlag, sID, nai); + } + + /** + * Returns SID type. + * @return st sid type + */ + public byte getSt() { + return st; + } + + /** + * Returns bFFlag. + * @return bFFlag + */ + public boolean getFFlag() { + return bFFlag; + } + + /** + * Returns bSFlag. + * @return bSFlag + */ + public boolean getSFlag() { + return bSFlag; + } + + /** + * Returns bCFlag. + * @return bCFlag + */ + public boolean getCFlag() { + return bCFlag; + } + + /** + * Returns bMFlag. + * @return bMFlag + */ + public boolean getMFlag() { + return bMFlag; + } + + /** + * Returns sID. + * @return sID + */ + public int getSID() { + return sID; + } + + /** + * Returns nai. + * @return nai + */ + public PcepNai getNai() { + return nai; + } + + @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(st, bFFlag, bSFlag, bCFlag, bMFlag, sID, nai); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof SrEroSubObject) { + SrEroSubObject other = (SrEroSubObject) obj; + return Objects.equals(this.st, other.st) && Objects.equals(this.bFFlag, other.bFFlag) + && Objects.equals(this.bSFlag, other.bSFlag) && Objects.equals(this.bCFlag, other.bCFlag) + && Objects.equals(this.bMFlag, other.bMFlag) && Objects.equals(this.sID, other.sID) + && Objects.equals(this.nai, other.nai); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + + c.writeShort(TYPE); + c.writeShort(LENGTH); + + short temp = 0; + if (bMFlag) { + temp = (short) (temp | MFLAG_SET); + } + if (bCFlag) { + temp = (short) (temp | CFLAG_SET); + } + if (bSFlag) { + temp = (short) (temp | SFLAG_SET); + } + if (bFFlag) { + temp = (short) (temp | FFLAG_SET); + } + short tempST = (short) (st << SHIFT_ST); + temp = (short) (temp | tempST); + c.writeShort(temp); + c.writeInt(sID); + nai.write(c); + + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of SrEroSubObject. + * @param c of type channel buffer + * @return object of SrEroSubObject + */ + public static PcepValueType read(ChannelBuffer c) { + short temp = c.readShort(); + boolean bMFlag; + boolean bCFlag; + boolean bSFlag; + boolean bFFlag; + byte st; + PcepNai nai = null; + + bMFlag = (temp & MFLAG_SET) == MFLAG_SET; + bCFlag = (temp & CFLAG_SET) == CFLAG_SET; + bSFlag = (temp & SFLAG_SET) == SFLAG_SET; + bFFlag = (temp & FFLAG_SET) == FFLAG_SET; + + st = (byte) (temp >> SHIFT_ST); + + int sID = c.readInt(); + switch (st) { + case 0x01: + nai = PcepNaiIpv4NodeId.read(c); + break; + case 0x02: + nai = PcepNaiIpv6NodeId.read(c); + break; + case 0x03: + nai = PcepNaiIpv4Adjacency.read(c); + break; + case 0x04: + nai = PcepNaiIpv6Adjacency.read(c); + break; + case 0x05: + nai = PcepNaiUnnumberedAdjacencyIpv4.read(c); + break; + default: + nai = null; + break; + } + + return new SrEroSubObject(st, bFFlag, bSFlag, bCFlag, bMFlag, sID, nai); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("st", st) + .add("bFflag", bFFlag) + .add("bSFlag", bSFlag) + .add("bCFlag", bCFlag) + .add("bMFlag", bMFlag) + .add("sID", sID) + .add("nAI", nai) + .toString(); + } +} |