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
|
/*
* Copyright (c) 2018 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.nat.write;
import static com.google.common.base.Preconditions.checkArgument;
import static org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nat.rev180510.NatPoolType.Nat64;
import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
import io.fd.hc2vpp.common.translate.util.Ipv4AddressRange;
import io.fd.hc2vpp.common.translate.util.Ipv4Translator;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.vpp.jvpp.nat.dto.Nat44AddDelAddressRange;
import io.fd.vpp.jvpp.nat.dto.Nat64AddDelPoolAddrRange;
import io.fd.vpp.jvpp.nat.future.FutureJVppNatFacade;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180628.nat.instances.Instance;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180628.nat.instances.instance.policy.ExternalIpAddressPool;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180628.nat.instances.instance.policy.ExternalIpAddressPoolKey;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nat.rev180510.ExternalIpAddressPoolAugmentation;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
final class ExternalIpPoolCustomizer implements ListWriterCustomizer<ExternalIpAddressPool, ExternalIpAddressPoolKey>,
JvppReplyConsumer, Ipv4Translator, ByteDataTranslator {
private static final Logger LOG = LoggerFactory.getLogger(ExternalIpPoolCustomizer.class);
private final FutureJVppNatFacade jvppNat;
ExternalIpPoolCustomizer(@Nonnull final FutureJVppNatFacade jvppNat) {
this.jvppNat = jvppNat;
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<ExternalIpAddressPool> id,
@Nonnull final ExternalIpAddressPool dataAfter,
@Nonnull final WriteContext writeContext) throws WriteFailedException {
checkArgument(id.firstKeyOf(Instance.class).getId() == 0,
"External IP pools are only assignable for nat instance(vrf-id) with ID 0");
LOG.trace("Adding address range:{}, as: {}", id, dataAfter);
// TODO check overlaps ? VPP-478 maybe no necessary, depending on how VPP handles them
configureAddressPool(id, dataAfter, true);
LOG.debug("Address range: {} added successfully", id);
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<ExternalIpAddressPool> id,
@Nonnull final ExternalIpAddressPool dataBefore,
@Nonnull final WriteContext writeContext) throws WriteFailedException {
LOG.trace("Deleting address range:{}, as: {}", id, dataBefore);
configureAddressPool(id, dataBefore, false);
LOG.debug("Deleting range: {} added successfully", id);
}
private void configureAddressPool(@Nonnull final InstanceIdentifier<ExternalIpAddressPool> id,
@Nonnull final ExternalIpAddressPool addressPool,
final boolean isAdd) throws WriteFailedException {
boolean isNat64 = false;
final ExternalIpAddressPoolAugmentation augmentation =
addressPool.getAugmentation(ExternalIpAddressPoolAugmentation.class);
if (augmentation != null) {
isNat64 = Nat64.equals(augmentation.getPoolType());
}
if (isNat64) {
final Nat64AddDelPoolAddrRange request = getNat64Request(addressPool.getExternalIpPool(), isAdd);
getReplyForWrite(jvppNat.nat64AddDelPoolAddrRange(request).toCompletableFuture(), id);
} else {
final Nat44AddDelAddressRange request = getNat44Request(addressPool.getExternalIpPool(), isAdd);
getReplyForWrite(jvppNat.nat44AddDelAddressRange(request).toCompletableFuture(), id);
}
}
private Nat44AddDelAddressRange getNat44Request(final Ipv4Prefix externalIpPool, boolean isAdd) {
final Nat44AddDelAddressRange request = new Nat44AddDelAddressRange();
final Ipv4AddressRange range = Ipv4AddressRange.fromPrefix(externalIpPool);
LOG.trace("Handling NAT44 address range: {}", range);
request.isAdd = booleanToByte(isAdd);
request.firstIpAddress = ipv4AddressNoZoneToArray(range.getStart());
request.lastIpAddress = ipv4AddressNoZoneToArray(range.getEnd());
return request;
}
private Nat64AddDelPoolAddrRange getNat64Request(final Ipv4Prefix externalIpPool, boolean isAdd) {
final Nat64AddDelPoolAddrRange request = new Nat64AddDelPoolAddrRange();
final Ipv4AddressRange range = Ipv4AddressRange.fromPrefix(externalIpPool);
LOG.trace("Handling NAT64 address range: {}", range);
request.isAdd = booleanToByte(isAdd);
request.startAddr = ipv4AddressNoZoneToArray(range.getStart());
request.endAddr = ipv4AddressNoZoneToArray(range.getEnd());
return request;
}
}
|
