1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*
* 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.Arrays;
import org.jboss.netty.buffer.ChannelBuffer;
import org.onosproject.pcepio.protocol.PcepVersion;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.MoreObjects;
import com.google.common.base.MoreObjects.ToStringHelper;
/**
* Provides IPv6 Neighbor Address. Reference :[RFC6119]/4.3.
*/
public class IPv6NeighborAddressTlv implements PcepValueType {
protected static final Logger log = LoggerFactory.getLogger(IPv6NeighborAddressTlv.class);
public static final short TYPE = 13; // TDB19
public static final short LENGTH = 20;
public static final byte VALUE_LENGTH = 18;
private static final byte[] NONE_VAL = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
public static final IPv6NeighborAddressTlv NONE = new IPv6NeighborAddressTlv(NONE_VAL);
private static final byte[] NO_MASK_VAL = {(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, (byte) 0xFF, (byte) 0xFF};
public static final IPv6NeighborAddressTlv NO_MASK = new IPv6NeighborAddressTlv(NO_MASK_VAL);
public static final IPv6NeighborAddressTlv FULL_MASK = NONE;
private final byte[] rawValue;
/**
* Constructor to initialize rawValue.
*
* @param rawValue IPv6 Neighbor Address Tlv
*/
public IPv6NeighborAddressTlv(byte[] rawValue) {
this.rawValue = rawValue;
}
/**
* Returns newly created IPv6NeighborAddressTlv object.
*
* @param raw IPv6 Neighbor Address
* @return object of IPv6 Neighbor Address Tlv
*/
public static IPv6NeighborAddressTlv of(final byte[] raw) {
//check NONE_VAL
boolean bFoundNONE = true;
//value starts from 3rd byte.
for (int i = 2; i < 20; ++i) {
if (NONE_VAL[i] != raw[i]) {
bFoundNONE = false;
}
}
if (bFoundNONE) {
return NONE;
}
//check NO_MASK_VAL
boolean bFoundNoMask = true;
//value starts from 3rd byte.
for (int i = 2; i < 20; ++i) {
if (0xFF != raw[i]) {
bFoundNoMask = false;
}
}
if (bFoundNoMask) {
return NO_MASK;
}
return new IPv6NeighborAddressTlv(raw);
}
/**
* Returns value of IPv6 Neighbor Address.
*
* @return rawValue raw value
*/
public byte[] getBytes() {
return rawValue;
}
/**
* Returns value of IPv6 Neighbor Address.
*
* @return rawValue raw value
*/
public byte[] getValue() {
return rawValue;
}
@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 Arrays.hashCode(rawValue);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof IPv6NeighborAddressTlv) {
IPv6NeighborAddressTlv other = (IPv6NeighborAddressTlv) obj;
return Arrays.equals(rawValue, other.rawValue);
}
return false;
}
@Override
public int write(ChannelBuffer c) {
int iStartIndex = c.writerIndex();
c.writeShort(TYPE);
c.writeShort(LENGTH);
c.writeBytes(rawValue);
return c.writerIndex() - iStartIndex;
}
/**
* Reads the channel buffer and returns object of IPv6NeighborAddressTlv.
*
* @param c input channel buffer
* @return object of IPv6NeighborAddressTlv
*/
public static IPv6NeighborAddressTlv read20Bytes(ChannelBuffer c) {
byte[] yTemp = new byte[20];
c.readBytes(yTemp, 0, 20);
return IPv6NeighborAddressTlv.of(yTemp);
}
@Override
public String toString() {
ToStringHelper toStrHelper = MoreObjects.toStringHelper(getClass());
toStrHelper.add("Type", TYPE);
toStrHelper.add("Length", LENGTH);
StringBuffer result = new StringBuffer();
for (byte b : rawValue) {
result.append(String.format("%02X ", b));
}
toStrHelper.add("Value", result);
return toStrHelper.toString();
}
}
|
