129 lines
4.0 KiB
Java
129 lines
4.0 KiB
Java
package org.kne.cloud.network.srv6;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.nio.channels.ReadableByteChannel;
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import java.nio.channels.WritableByteChannel;
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public class DetNetSRv6TLV extends IPv6SegmentRoutingTLV {
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// 标志位掩码定义
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public static final int FLAG_GUARANTEED_DELIVERY = 0x01; // 第1位: 承诺送达
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public static final int FLAG_AVOID_REORDERING = 0x02; // 第2位: 避免乱序
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public static final int FLAG_RESOURCE_RESERVED = 0x04; // 第3位: 资源预留
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public static final int FLAG_EXPLICIT_ROUTE = 0x08; // 第4位: 显式路由
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// 保留其他位用于未来扩展 (0x10, 0x20, 0x40, 0x80)
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public DetNetSRv6TLV(ByteBuffer buffer) {
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super(buffer);
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}
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/**
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* 构造方法
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*/
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public DetNetSRv6TLV(boolean guaranteedDelivery, boolean avoidReordering,
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boolean resourceReserved, boolean explicitRoute) {
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super(IPv6SegmentRoutingTLV.DETNET); // 使用建议的TLV类型编号
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int flags = 0;
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if (guaranteedDelivery) flags |= FLAG_GUARANTEED_DELIVERY;
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if (avoidReordering) flags |= FLAG_AVOID_REORDERING;
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if (resourceReserved) flags |= FLAG_RESOURCE_RESERVED;
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if (explicitRoute) flags |= FLAG_EXPLICIT_ROUTE;
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setFlags(flags);
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// DetNet TLV数据部分：1字节标志位 + 5字节保留
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getData().put(1, (byte) 0); // 保留
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getData().put(2, (byte) 0); // 保留
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getData().put(3, (byte) 0); // 保留
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getData().put(4, (byte) 0); // 保留
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getData().put(5, (byte) 0); // 保留
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getData().limit(6); // 总数据长度4字节
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}
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public int getFlags() {
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return getData().get(0) & 0xff;
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}
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public void setFlags(int flags) {
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getData().put(0, (byte) flags);
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}
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// 标志位getter/setter方法
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public boolean isGuaranteedDelivery() {
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return (getData().get(0) & FLAG_GUARANTEED_DELIVERY) != 0;
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}
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public void setGuaranteedDelivery(boolean enabled) {
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byte flags = getData().get(0);
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if (enabled) {
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flags |= FLAG_GUARANTEED_DELIVERY;
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} else {
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flags &= ~FLAG_GUARANTEED_DELIVERY;
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}
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getData().put(0, flags);
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}
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public boolean isAvoidReordering() {
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return (getData().get(0) & FLAG_AVOID_REORDERING) != 0;
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}
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public void setAvoidReordering(boolean enabled) {
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byte flags = getData().get(0);
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if (enabled) {
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flags |= FLAG_AVOID_REORDERING;
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} else {
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flags &= ~FLAG_AVOID_REORDERING;
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}
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getData().put(0, flags);
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}
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public boolean isResourceReserved() {
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return (getData().get(0) & FLAG_RESOURCE_RESERVED) != 0;
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}
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public void setResourceReserved(boolean enabled) {
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byte flags = getData().get(0);
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if (enabled) {
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flags |= FLAG_RESOURCE_RESERVED;
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} else {
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flags &= ~FLAG_RESOURCE_RESERVED;
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}
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getData().put(0, flags);
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}
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public boolean isExplicitRoute() {
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return (getData().get(0) & FLAG_EXPLICIT_ROUTE) != 0;
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}
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public void setExplicitRoute(boolean enabled) {
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byte flags = getData().get(0);
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if (enabled) {
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flags |= FLAG_EXPLICIT_ROUTE;
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} else {
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flags &= ~FLAG_EXPLICIT_ROUTE;
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}
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getData().put(0, flags);
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}
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@Override
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public String toString() {
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return "DetNetSRv6TLV [" +
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"guaranteedDelivery=" + isGuaranteedDelivery() +
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", avoidReordering=" + isAvoidReordering() +
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", resourceReserved=" + isResourceReserved() +
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", explicitRoute=" + isExplicitRoute() + "]";
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}
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@Override
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public void writeToChannel(WritableByteChannel dto) throws IOException {
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super.writeToChannel(dto);
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}
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@Override
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public void readFromChannel(ReadableByteChannel din, long length) throws IOException {
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super.readFromChannel(din, length);
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}
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} |