diff options
Diffstat (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Authentication.java')
| -rw-r--r-- | framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Authentication.java | 300 |
1 files changed, 0 insertions, 300 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Authentication.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Authentication.java deleted file mode 100644 index ec04a812..00000000 --- a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Authentication.java +++ /dev/null @@ -1,300 +0,0 @@ -/* - * Copyright 2014-2015 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.onlab.packet.ipv6; - -import org.onlab.packet.BasePacket; -import org.onlab.packet.Data; -import org.onlab.packet.DeserializationException; -import org.onlab.packet.Deserializer; -import org.onlab.packet.IPacket; -import org.onlab.packet.IPv6; - -import java.nio.ByteBuffer; -import java.util.Arrays; - -import static org.onlab.packet.PacketUtils.checkInput; - -/** - * Implements IPv6 authentication extension header format. (RFC 4302) - */ -public class Authentication extends BasePacket implements IExtensionHeader { - public static final byte FIXED_HEADER_LENGTH = 12; // bytes - public static final byte LENGTH_UNIT = 4; // bytes per unit - public static final byte MINUS = 2; - - protected byte nextHeader; - protected byte payloadLength; - protected int securityParamIndex; - protected int sequence; - protected byte[] integrityCheck; - - @Override - public byte getNextHeader() { - return this.nextHeader; - } - - @Override - public Authentication setNextHeader(final byte nextHeader) { - this.nextHeader = nextHeader; - return this; - } - - /** - * Gets the payload length of this header. - * - * @return the payload length - */ - public byte getPayloadLength() { - return this.payloadLength; - } - - /** - * Sets the payload length of this header. - * - * @param payloadLength the payload length to set - * @return this - */ - public Authentication setPayloadLength(final byte payloadLength) { - this.payloadLength = payloadLength; - return this; - } - - /** - * Gets the security parameter index of this header. - * - * @return the security parameter index - */ - public int getSecurityParamIndex() { - return this.securityParamIndex; - } - - /** - * Sets the security parameter index of this header. - * - * @param securityParamIndex the security parameter index to set - * @return this - */ - public Authentication setSecurityParamIndex(final int securityParamIndex) { - this.securityParamIndex = securityParamIndex; - return this; - } - - /** - * Gets the sequence number of this header. - * - * @return the sequence number - */ - public int getSequence() { - return this.sequence; - } - - /** - * Sets the sequence number of this header. - * - * @param sequence the sequence number to set - * @return this - */ - public Authentication setSequence(final int sequence) { - this.sequence = sequence; - return this; - } - - /** - * Gets the integrity check value of this header. - * - * @return the integrity check value - */ - public byte[] getIntegrityCheck() { - return this.integrityCheck; - } - - /** - * Sets the integrity check value of this header. - * - * @param integrityCheck the integrity check value to set - * @return this - */ - public Authentication setIngegrityCheck(final byte[] integrityCheck) { - this.integrityCheck = - Arrays.copyOfRange(integrityCheck, 0, integrityCheck.length); - return this; - } - - /** - * Gets the total length of this header. - * According to spec, payload length should be the total length of this AH - * in 4-octet unit, minus 2 - * - * @return the total length - */ - public int getTotalLength() { - return (this.payloadLength + MINUS) * LENGTH_UNIT; - } - - @Override - public byte[] serialize() { - byte[] payloadData = null; - if (this.payload != null) { - this.payload.setParent(this); - payloadData = this.payload.serialize(); - } - - int headerLength = FIXED_HEADER_LENGTH + integrityCheck.length; - int payloadLength = 0; - if (payloadData != null) { - payloadLength = payloadData.length; - } - - final byte[] data = new byte[headerLength + payloadLength]; - final ByteBuffer bb = ByteBuffer.wrap(data); - - bb.put(this.nextHeader); - bb.put(this.payloadLength); - bb.putShort((short) 0); - bb.putInt(this.securityParamIndex); - bb.putInt(this.sequence); - bb.put(this.integrityCheck, 0, integrityCheck.length); - - if (payloadData != null) { - bb.put(payloadData); - } - - if (this.parent != null && this.parent instanceof IExtensionHeader) { - ((IExtensionHeader) this.parent).setNextHeader(IPv6.PROTOCOL_AH); - } - return data; - } - - @Override - public IPacket deserialize(byte[] data, int offset, int length) { - final ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - this.nextHeader = bb.get(); - this.payloadLength = bb.get(); - bb.getShort(); - this.securityParamIndex = bb.getInt(); - this.sequence = bb.getInt(); - int icvLength = getTotalLength() - FIXED_HEADER_LENGTH; - this.integrityCheck = new byte[icvLength]; - bb.get(this.integrityCheck, 0, icvLength); - - Deserializer<? extends IPacket> deserializer; - if (IPv6.PROTOCOL_DESERIALIZER_MAP.containsKey(this.nextHeader)) { - deserializer = IPv6.PROTOCOL_DESERIALIZER_MAP.get(this.nextHeader); - } else { - deserializer = Data.deserializer(); - } - - try { - this.payload = deserializer.deserialize(data, bb.position(), - bb.limit() - bb.position()); - this.payload.setParent(this); - } catch (DeserializationException e) { - return this; - } - - return this; - } - - /* - * (non-Javadoc) - * - * @see java.lang.Object#hashCode() - */ - @Override - public int hashCode() { - final int prime = 5807; - int result = super.hashCode(); - result = prime * result + this.nextHeader; - result = prime * result + this.payloadLength; - result = prime * result + this.securityParamIndex; - result = prime * result + this.sequence; - for (byte b : this.integrityCheck) { - result = prime * result + b; - } - return result; - } - - /* - * (non-Javadoc) - * - * @see java.lang.Object#equals(java.lang.Object) - */ - @Override - public boolean equals(final Object obj) { - if (this == obj) { - return true; - } - if (!super.equals(obj)) { - return false; - } - if (!(obj instanceof Authentication)) { - return false; - } - final Authentication other = (Authentication) obj; - if (this.nextHeader != other.nextHeader) { - return false; - } - if (this.payloadLength != other.payloadLength) { - return false; - } - if (this.securityParamIndex != other.securityParamIndex) { - return false; - } - if (this.sequence != other.sequence) { - return false; - } - if (!Arrays.equals(this.integrityCheck, other.integrityCheck)) { - return false; - } - return true; - } - - /** - * Deserializer function for authentication headers. - * - * @return deserializer function - */ - public static Deserializer<Authentication> deserializer() { - return (data, offset, length) -> { - checkInput(data, offset, length, FIXED_HEADER_LENGTH); - - Authentication authentication = new Authentication(); - - ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - authentication.nextHeader = bb.get(); - authentication.payloadLength = bb.get(); - bb.getShort(); - authentication.securityParamIndex = bb.getInt(); - authentication.sequence = bb.getInt(); - int icvLength = (authentication.payloadLength + MINUS) * LENGTH_UNIT - FIXED_HEADER_LENGTH; - authentication.integrityCheck = new byte[icvLength]; - bb.get(authentication.integrityCheck, 0, icvLength); - - Deserializer<? extends IPacket> deserializer; - if (IPv6.PROTOCOL_DESERIALIZER_MAP.containsKey(authentication.nextHeader)) { - deserializer = IPv6.PROTOCOL_DESERIALIZER_MAP.get(authentication.nextHeader); - } else { - deserializer = Data.deserializer(); - } - authentication.payload = deserializer.deserialize(data, bb.position(), - bb.limit() - bb.position()); - authentication.payload.setParent(authentication); - - return authentication; - }; - } -} |