Thomas Vachuska | 58de416 | 2015-09-10 16:15:33 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 16 | package org.onosproject.pcepio.types; |
| 17 | |
| 18 | import org.jboss.netty.buffer.ChannelBuffer; |
| 19 | import org.onosproject.pcepio.protocol.PcepVersion; |
| 20 | |
| 21 | import com.google.common.base.MoreObjects; |
| 22 | |
| 23 | /** |
| 24 | * Provides Pcep Rsvp Ipv6 Error Spec. |
| 25 | */ |
| 26 | public class PcepRsvpIpv6ErrorSpec implements PcepRsvpErrorSpec { |
| 27 | |
| 28 | /* |
| 29 | 0 1 2 3 |
| 30 | +-------------+-------------+-------------+-------------+ |
| 31 | | Length (bytes) | Class-Num | C-Type | |
| 32 | +-------------+-------------+-------------+-------------+ |
| 33 | | | |
| 34 | // (Object contents) // |
| 35 | | | |
| 36 | +-------------+-------------+-------------+-------------+ |
| 37 | |
| 38 | Ref : ERROR_SPEC @ RFC2205 |
| 39 | |
| 40 | IPv6 ERROR_SPEC object: Class = 6, C-Type = 2 |
| 41 | +-------------+-------------+-------------+-------------+ |
| 42 | | | |
| 43 | + + |
| 44 | | | |
| 45 | + IPv6 Error Node Address (16 bytes) + |
| 46 | | | |
| 47 | + + |
| 48 | | | |
| 49 | +-------------+-------------+-------------+-------------+ |
| 50 | | Flags | Error Code | Error Value | |
| 51 | +-------------+-------------+-------------+-------------+ */ |
| 52 | |
| 53 | PcepRsvpSpecObjHeader objHeader; |
| 54 | public static final byte CLASS_NUM = 0x06; |
| 55 | public static final byte CLASS_TYPE = 0x02; |
| 56 | public static final byte CLASS_LENGTH = 0x18; |
| 57 | public static final byte IPV6_LEN = 0x10; |
| 58 | |
| 59 | private byte[] ipv6Addr; |
| 60 | private byte flags; |
| 61 | private byte errCode; |
| 62 | private short errValue; |
| 63 | |
| 64 | /** |
| 65 | * Constructor to initialize obj header, ipv6 addr, flags, err code and err value. |
| 66 | * |
| 67 | * @param objHeader rsvp ipv6 error spec object header |
| 68 | * @param ipv6Addr ipv6 address |
| 69 | * @param flags flags value |
| 70 | * @param errCode error code |
| 71 | * @param errValue error value |
| 72 | */ |
| 73 | public PcepRsvpIpv6ErrorSpec(PcepRsvpSpecObjHeader objHeader, byte[] ipv6Addr, byte flags, byte errCode, |
| 74 | short errValue) { |
| 75 | this.objHeader = objHeader; |
| 76 | this.ipv6Addr = ipv6Addr; |
| 77 | this.flags = flags; |
| 78 | this.errCode = errCode; |
| 79 | this.errValue = errValue; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Constructor to initialize ipv6 addr, flags, err code and err value. |
| 84 | * |
| 85 | * @param ipv6Addr ipv6 address |
| 86 | * @param flags flags value |
| 87 | * @param errCode error code |
| 88 | * @param errValue error value |
| 89 | */ |
| 90 | public PcepRsvpIpv6ErrorSpec(byte[] ipv6Addr, byte flags, byte errCode, short errValue) { |
| 91 | this.objHeader = new PcepRsvpSpecObjHeader(CLASS_LENGTH, CLASS_NUM, CLASS_TYPE); |
| 92 | this.ipv6Addr = ipv6Addr; |
| 93 | this.flags = flags; |
| 94 | this.errCode = errCode; |
| 95 | this.errValue = errValue; |
| 96 | } |
| 97 | |
| 98 | @Override |
| 99 | public int write(ChannelBuffer cb) { |
| 100 | int objLenIndex = objHeader.write(cb); |
| 101 | cb.writeBytes(ipv6Addr); |
| 102 | cb.writeByte(flags); |
| 103 | cb.writeByte(errCode); |
| 104 | cb.writeShort(errValue); |
| 105 | short objLen = (short) (cb.writerIndex() - objLenIndex); |
| 106 | cb.setShort(objLenIndex, objLen); |
| 107 | return objLen; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Returns PCEP rsvp IPv6 error spce object. |
| 112 | * |
| 113 | * @param cb channel buffer |
| 114 | * @return PCEP rsvp IPv6 error spce object |
| 115 | */ |
| 116 | public static PcepRsvpErrorSpec read(ChannelBuffer cb) { |
| 117 | PcepRsvpSpecObjHeader objHeader; |
| 118 | byte[] ipv6Addr = new byte[IPV6_LEN]; |
| 119 | byte flags; |
| 120 | byte errCode; |
| 121 | short errValue; |
| 122 | |
| 123 | objHeader = PcepRsvpSpecObjHeader.read(cb); |
| 124 | cb.readBytes(ipv6Addr, 0, IPV6_LEN); |
| 125 | flags = cb.readByte(); |
| 126 | errCode = cb.readByte(); |
| 127 | errValue = cb.readShort(); |
| 128 | return new PcepRsvpIpv6ErrorSpec(objHeader, ipv6Addr, flags, errCode, errValue); |
| 129 | } |
| 130 | |
| 131 | @Override |
| 132 | public PcepVersion getVersion() { |
| 133 | return PcepVersion.PCEP_1; |
| 134 | } |
| 135 | |
| 136 | @Override |
| 137 | public short getType() { |
| 138 | return StatefulRsvpErrorSpecTlv.TYPE; |
| 139 | } |
| 140 | |
| 141 | @Override |
| 142 | public short getLength() { |
| 143 | return CLASS_LENGTH; |
| 144 | } |
| 145 | |
| 146 | @Override |
| 147 | public byte getClassNum() { |
| 148 | return CLASS_NUM; |
| 149 | } |
| 150 | |
| 151 | @Override |
| 152 | public byte getClassType() { |
| 153 | return CLASS_TYPE; |
| 154 | } |
| 155 | |
| 156 | @Override |
| 157 | public String toString() { |
| 158 | return MoreObjects.toStringHelper(getClass()) |
Sho SHIMIZU | 7cdbcf7 | 2015-09-03 14:43:05 -0700 | [diff] [blame] | 159 | .add("IPv6Address", ipv6Addr) |
| 160 | .add("flags", flags) |
| 161 | .add("errorCode", errCode) |
| 162 | .add("errorValue", errValue) |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 163 | .toString(); |
| 164 | } |
| 165 | } |