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/*
* Copyright 2014 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.cli.net;
import org.onlab.packet.ICMP6;
/**
* Known values for ICMPv6 code field that can be supplied to the CLI.
*/
public enum Icmp6Code {
// Code for DEST_UNREACH
/** No route to destination. */
NO_ROUTE(ICMP6.NO_ROUTE),
/** Communication with destination administratively prohibited. */
COMM_PROHIBIT(ICMP6.COMM_PROHIBIT),
/** Beyond scope of source address. */
BEYOND_SCOPE(ICMP6.BEYOND_SCOPE),
/** Address unreachable. */
ADDR_UNREACH(ICMP6.ADDR_UNREACH),
/** Port unreachable. */
PORT_UNREACH(ICMP6.PORT_UNREACH),
/** Source address failed ingress/egress policy. */
FAIL_POLICY(ICMP6.FAIL_POLICY),
/** Reject route to destination. */
REJECT_ROUTE(ICMP6.REJECT_ROUTE),
/** Error in Source Routing Header. */
SRC_ROUTING_HEADER_ERR(ICMP6.SRC_ROUTING_HEADER_ERR),
// Code for TIME_EXCEED
/** Hop limit exceeded in transit. */
HOP_LIMIT_EXCEED(ICMP6.HOP_LIMIT_EXCEED),
/** Fragment reassembly time exceeded. */
DEFRAG_TIME_EXCEED(ICMP6.DEFRAG_TIME_EXCEED),
// Code for PARAM_ERR
/** Erroneous header field encountered. */
HDR_FIELD_ERR(ICMP6.HDR_FIELD_ERR),
/** Unrecognized Next Header type encountered. */
NEXT_HEADER_ERR(ICMP6.NEXT_HEADER_ERR),
/** Unrecognized IPv6 option encountered. */
IPV6_OPT_ERR(ICMP6.IPV6_OPT_ERR);
private byte value;
/**
* Constructs an Icmp6Code with the given value.
*
* @param value value to use when this Icmp6Code is seen
*/
private Icmp6Code(byte value) {
this.value = value;
}
/**
* Gets the value to use for this Icmp6Code.
*
* @return short value to use for this Icmp6Code
*/
public byte value() {
return this.value;
}
/**
* Parse a string input that could contain an Icmp6Code value. The value
* may appear in the string either as a known code name (one of the
* values of this enum), or a numeric code value.
*
* @param input the input string to parse
* @return the numeric value of the parsed ICMPv6 code
* @throws IllegalArgumentException if the input string does not contain a
* value that can be parsed into an ICMPv6 code
*/
public static byte parseFromString(String input) {
try {
return valueOf(input).value();
} catch (IllegalArgumentException e) {
// The input is not a known ICMPv6 code name, let's see if it's an ICMP6
// code value (byte). We parse with Byte to handle unsigned values
// correctly.
try {
return Byte.parseByte(input);
} catch (NumberFormatException e1) {
throw new IllegalArgumentException(
"Icmp6Code value must be either a string code name"
+ " or an 8-bit code value");
}
}
}
}
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