dfa3bbbf00
Motivation: RFC7871 defines an extension which allows to request responses for a given subset. Modifications: - Add DnsOptPseudoRrRecord which can act as base class for extensions based on EDNS(0) as defined in RFC6891 - Add DnsOptEcsRecord to support the Client Subnet in DNS Queries extension - Add tests Result: Client Subnet in DNS Queries extension is now supported.
45 lines
1.4 KiB
Java
45 lines
1.4 KiB
Java
/*
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* Copyright 2016 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.handler.codec.dns;
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import io.netty.util.internal.UnstableApi;
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/**
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* An <a href="https://tools.ietf.org/html/rfc6891#section-6.1">OPT RR</a> record.
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* <p>
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* This is used for <a href="https://tools.ietf.org/html/rfc6891#section-6.1.3">Extension
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* Mechanisms for DNS (EDNS(0))</a>.
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*/
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@UnstableApi
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public interface DnsOptPseudoRecord extends DnsRecord {
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/**
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* Returns the {@code EXTENDED-RCODE} which is encoded into {@link DnsOptPseudoRecord#timeToLive()}.
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*/
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int extendedRcode();
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/**
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* Returns the {@code VERSION} which is encoded into {@link DnsOptPseudoRecord#timeToLive()}.
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*/
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int version();
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/**
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* Returns the {@code flags} which includes {@code DO} and {@code Z} which is encoded
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* into {@link DnsOptPseudoRecord#timeToLive()}.
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*/
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int flags();
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}
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