diff options
Diffstat (limited to 'framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpNotificationMsgVer4.java')
| -rw-r--r-- | framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpNotificationMsgVer4.java | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpNotificationMsgVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpNotificationMsgVer4.java deleted file mode 100644 index 7243e21a..00000000 --- a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpNotificationMsgVer4.java +++ /dev/null @@ -1,265 +0,0 @@ -/* - * 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.protocol.ver4; - -import org.jboss.netty.buffer.ChannelBuffer; -import org.onosproject.bgpio.exceptions.BgpParseException; -import org.onosproject.bgpio.protocol.BgpMessageReader; -import org.onosproject.bgpio.protocol.BgpMessageWriter; -import org.onosproject.bgpio.protocol.BgpNotificationMsg; -import org.onosproject.bgpio.protocol.BgpType; -import org.onosproject.bgpio.protocol.BgpVersion; -import org.onosproject.bgpio.types.BgpErrorType; -import org.onosproject.bgpio.types.BgpHeader; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import com.google.common.base.MoreObjects; - -/** - * A NOTIFICATION message is sent when an error condition is detected. The BGP connection is closed immediately after it - * is sent. - */ -class BgpNotificationMsgVer4 implements BgpNotificationMsg { - - /* - 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 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Error code | Error subcode | Data (variable) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - REFERENCE : RFC 4271 - */ - - private static final Logger log = LoggerFactory.getLogger(BgpNotificationMsgVer4.class); - - static final byte PACKET_VERSION = 4; - //BGPHeader(19) + Error code(1) + Error subcode(1) - static final int TOTAL_MESSAGE_MIN_LENGTH = 21; - static final int PACKET_MINIMUM_LENGTH = 2; - static final BgpType MSG_TYPE = BgpType.NOTIFICATION; - static final byte DEFAULT_ERRORSUBCODE = 0; - static final byte[] MARKER = {(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 }; - static final byte MESSAGE_TYPE = 3; - static final BgpHeader DEFAULT_MESSAGE_HEADER = new BgpHeader(MARKER, BgpHeader.DEFAULT_HEADER_LENGTH, - MESSAGE_TYPE); - - private byte errorCode; - private byte errorSubCode; - private byte[] data; - private BgpHeader bgpHeader; - public static final BgpNotificationMsgVer4.Reader READER = new Reader(); - - /** - * Initialize fields. - */ - public BgpNotificationMsgVer4() { - this.bgpHeader = null; - this.data = null; - this.errorCode = 0; - this.errorSubCode = 0; - } - - /** - * Constructor to initialize parameters. - * - * @param bgpHeader BGP Header in notification message - * @param errorCode error code - * @param errorSubCode error subcode - * @param data field - */ - public BgpNotificationMsgVer4(BgpHeader bgpHeader, byte errorCode, byte errorSubCode, byte[] data) { - this.bgpHeader = bgpHeader; - this.data = data; - this.errorCode = errorCode; - this.errorSubCode = errorSubCode; - } - - /** - * Reader reads BGP Notification Message from the channel buffer. - */ - static class Reader implements BgpMessageReader<BgpNotificationMsg> { - @Override - public BgpNotificationMsg readFrom(ChannelBuffer cb, BgpHeader bgpHeader) throws BgpParseException { - byte errorCode; - byte errorSubCode; - if (cb.readableBytes() < PACKET_MINIMUM_LENGTH) { - throw new BgpParseException("Not enough readable bytes"); - } - errorCode = cb.readByte(); - errorSubCode = cb.readByte(); - //Message Length = 21 + Data Length - int dataLength = bgpHeader.getLength() - TOTAL_MESSAGE_MIN_LENGTH; - byte[] data = new byte[dataLength]; - cb.readBytes(data, 0, dataLength); - return new BgpNotificationMsgVer4(bgpHeader, errorCode, errorSubCode, data); - } - } - - /** - * Builder class for BGP notification message. - */ - static class Builder implements BgpNotificationMsg.Builder { - private byte errorCode; - private byte errorSubCode; - private byte[] data; - private BgpHeader bgpHeader; - private boolean isErrorCodeSet = false; - private boolean isErrorSubCodeSet = false; - private boolean isBGPHeaderSet = false; - - @Override - public BgpNotificationMsg build() throws BgpParseException { - BgpHeader bgpHeader = this.isBGPHeaderSet ? this.bgpHeader : DEFAULT_MESSAGE_HEADER; - if (!this.isErrorCodeSet) { - throw new BgpParseException("Error code must be present"); - } - - byte errorSubCode = this.isErrorSubCodeSet ? this.errorSubCode : DEFAULT_ERRORSUBCODE; - return new BgpNotificationMsgVer4(bgpHeader, this.errorCode, errorSubCode, this.data); - } - - @Override - public Builder setErrorCode(byte errorCode) { - this.errorCode = errorCode; - this.isErrorCodeSet = true; - return this; - } - - @Override - public Builder setErrorSubCode(byte errorSubCode) { - this.errorSubCode = errorSubCode; - this.isErrorSubCodeSet = true; - return this; - } - - @Override - public Builder setData(byte[] data) { - if (data != null) { - this.data = data; - } - return this; - } - - @Override - public Builder setHeader(BgpHeader bgpMsgHeader) { - this.bgpHeader = bgpMsgHeader; - return this; - } - } - - @Override - public BgpVersion getVersion() { - return BgpVersion.BGP_4; - } - - @Override - public BgpType getType() { - return BgpType.NOTIFICATION; - } - - @Override - public void writeTo(ChannelBuffer cb) throws BgpParseException { - WRITER.write(cb, this); - } - - static final Writer WRITER = new Writer(); - - /** - * Writer writes BGP notification message to channel buffer. - */ - static class Writer implements BgpMessageWriter<BgpNotificationMsgVer4> { - @Override - public void write(ChannelBuffer cb, BgpNotificationMsgVer4 message) throws BgpParseException { - int msgStartIndex = cb.writerIndex(); - int headerLenIndex = message.bgpHeader.write(cb); - if (headerLenIndex <= 0) { - throw new BgpParseException(BgpErrorType.MESSAGE_HEADER_ERROR, (byte) 0, null); - } - cb.writeByte(message.errorCode); - cb.writeByte(message.errorSubCode); - if (message.data != null) { - cb.writeBytes(message.data); - } - - //Update message length field in notification message - int length = cb.writerIndex() - msgStartIndex; - cb.setShort(headerLenIndex, (short) length); - message.bgpHeader.setLength((short) length); - } - } - - @Override - public byte getErrorCode() { - return this.errorCode; - } - - /** - * Sets errorcode with specified errorcode. - * - * @param errorCode field - */ - public void setErrorCode(byte errorCode) { - this.errorCode = errorCode; - } - - @Override - public byte getErrorSubCode() { - return this.errorSubCode; - } - - /** - * Sets error subcode with specified errorSubCode. - * - * @param errorSubCode field - */ - public void setErrorSubCode(byte errorSubCode) { - this.errorSubCode = errorSubCode; - } - - @Override - public byte[] getData() { - return this.data; - } - - /** - * Sets error data with specified data. - * - * @param data field - */ - public void setData(byte[] data) { - this.data = data; - } - - @Override - public BgpHeader getHeader() { - return this.bgpHeader; - } - - @Override - public String toString() { - return MoreObjects.toStringHelper(getClass()) - .omitNullValues() - .add("bgpHeader", bgpHeader) - .add("data", data) - .add("errorCode", errorCode) - .add("errorSubCode", errorSubCode) - .toString(); - } -}
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