blob: 5f8a283edd48c720f1d98628d5ef12a483d6ed32 (
plain)
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
|
/*
* Copyright (c) 2016 Cisco and/or its affiliates.
*
* 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 io.fd.hc2vpp.common.translate.util;
import static com.google.common.base.Preconditions.checkNotNull;
import io.fd.vpp.jvpp.core.types.Address;
import io.fd.vpp.jvpp.core.types.AddressFamily;
import io.fd.vpp.jvpp.core.types.AddressUnion;
import io.fd.vpp.jvpp.core.types.Ip4Address;
import java.util.Arrays;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IetfInetUtil;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
/**
* Trait providing logic for translation of ipv4-related data.
*/
public interface Ipv4Translator extends ByteDataTranslator {
/**
* Make available also from static context.
*/
Ipv4Translator INSTANCE = new Ipv4Translator() {
};
/**
* Creates address array from address part of {@link Ipv4Prefix}
*/
default byte[] ipv4AddressPrefixToArray(@Nonnull final Ipv4Prefix ipv4Prefix) {
checkNotNull(ipv4Prefix, "Cannot convert null prefix");
byte[] retval = new byte[4];
String[] address = ipv4Prefix.getValue().substring(0, ipv4Prefix.getValue().indexOf('/')).split("\\.");
for (int d = 0; d < 4; d++) {
retval[d] = (byte) (Short.parseShort(address[d]) & 0xff);
}
return retval;
}
/**
* Extracts {@link Ipv4Prefix} prefix
*/
default byte extractPrefix(Ipv4Prefix data) {
checkNotNull(data, "Cannot extract from null");
return Byte.valueOf(data.getValue().substring(data.getValue().indexOf('/') + 1));
}
/**
* Parse byte array returned by VPP representing an Ipv4 address. Expects array in big endian
*
* @return Ipv4AddressNoZone containing string representation of IPv4 address constructed from submitted bytes. No
* change in order.
*/
@Nonnull
default Ipv4AddressNoZone arrayToIpv4AddressNoZone(@Nonnull byte[] ip) {
// VPP sends ipv4 in a 16 byte array
if (ip.length == 16) {
ip = Arrays.copyOfRange(ip, 0, 4);
}
return new Ipv4AddressNoZone(IetfInetUtil.INSTANCE.ipv4AddressFor(ip));
}
/**
* Transform Ipv4 address to a byte array acceptable by VPP. VPP expects incoming byte array to be in the same order
* as the address.
*
* @return byte array with address bytes
*/
default byte[] ipv4AddressNoZoneToArray(final Ipv4AddressNoZone ipv4Addr) {
return ipv4AddressNoZoneToArray(ipv4Addr.getValue());
}
/**
* Transform Ipv4 address to a Ip4Address acceptable by VPP.
*
* @return byte array with address bytes
*/
default Address ipv4AddressNoZoneToAddress(final Ipv4AddressNoZone ipv4Addr) {
Address address = new Address();
address.af = AddressFamily.ADDRESS_IP4;
Ip4Address ip4Address = new Ip4Address();
ip4Address.ip4Address = ipv4AddressNoZoneToArray(ipv4Addr);
address.un = new AddressUnion(ip4Address);
return address;
}
/**
* Transform Ipv4 address to a Ip4Address acceptable by VPP.
*
* @return byte array with address bytes
*/
default Address ipv4AddressToAddress(final Ipv4Address ipv4Addr) {
Address address = new Address();
address.af = AddressFamily.ADDRESS_IP4;
Ip4Address ip4Address = new Ip4Address();
ip4Address.ip4Address = ipv4AddressNoZoneToArray(ipv4Addr.getValue());
address.un = new AddressUnion(ip4Address);
return address;
}
default byte[] ipv4AddressNoZoneToArray(final String ipv4Addr) {
byte[] retval = new byte[4];
String[] dots = ipv4Addr.split("\\.");
for (int d = 0; d < 4; d++) {
retval[d] = (byte) (Short.parseShort(dots[d]) & 0xff);
}
return retval;
}
default Ipv4Prefix toIpv4Prefix(final byte[] address, final int prefix) {
return IetfInetUtil.INSTANCE.ipv4PrefixFor(address, prefix);
}
}
|
