forked from KNEMC/KLALB
83 lines
2.4 KiB
Java
83 lines
2.4 KiB
Java
package org.kne.cloud.network.ipv6;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.net.Inet6Address;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.util.Arrays;
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import java.util.Objects;
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import java.util.UUID;
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public class IPv6AddressGroup implements Comparable<IPv6AddressGroup>{
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public IPv6AddressGroup(IPv6Address address) {
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this(address, 128);
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}
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@Override
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public String toString() {
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return address+"/"+prefixLength;
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}
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@Override
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public int hashCode() {
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return Objects.hash(address, prefixLength);
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj)
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return true;
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if (obj == null)
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return false;
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if (getClass() != obj.getClass())
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return false;
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IPv6AddressGroup other = (IPv6AddressGroup) obj;
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return Objects.equals(address, other.address) && prefixLength == other.prefixLength;
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}
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public IPv6AddressGroup(IPv6Address address, int prefixLength) {
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super();
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this.address = address;
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this.prefixLength = prefixLength;
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}
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public IPv6AddressGroup(DataInputStream in) throws IOException {
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readFromStream(in);
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}
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private IPv6Address address;
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private int prefixLength=128;
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public IPv6Address getAddress() {
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return address;
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}
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public int getPrefixLength() {
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return prefixLength;
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}
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@Override
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public int compareTo(IPv6AddressGroup o) {
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return -Integer.compare(prefixLength, o.prefixLength);
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}
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public void writeToStream(DataOutputStream out) throws IOException {
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out.writeLong(address.getHigh());
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out.writeLong(address.getLow());
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out.write(prefixLength);
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}
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public void readFromStream(DataInputStream in) throws IOException {
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long high=in.readLong();
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long low=in.readLong();
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address=new IPv6Address(high,low);
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prefixLength=in.read();
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}
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public boolean checkMatch(IPv6Address address2) {
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IPv6Address cmsk= IPv6Address.createMask(prefixLength);
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return address2.maskWith(cmsk).equals(address.maskWith(cmsk));
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}
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/**
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* 返回裁剪后的路由表地址（主机位清零）。
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* 例如 2001:db8:1::100/64 → 2001:db8:1::/64
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*/
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public IPv6AddressGroup toNetworkRoute() {
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IPv6Address mask = IPv6Address.createMask(prefixLength);
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IPv6Address maskedAddr = address.maskWith(mask);
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return new IPv6AddressGroup(maskedAddr, prefixLength);
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}
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}
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