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https://gitee.com/willfree/mlsr.git
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105 lines
3.2 KiB
Go
105 lines
3.2 KiB
Go
// Package hello
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// @Author: Pei Xinyuan
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// @Description:
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// @Version: 0.1.0
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// @Date: 2022/7/14 14:49
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// @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
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//
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package hello
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import (
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common2 "minlib/common"
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"minlib/component"
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"minlib/logicface"
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"minlib/packet"
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"minlib/security"
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"mlsr/common"
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"mlsr/lsa"
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"mlsr/lsdb"
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"mlsr/route"
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)
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// 用于hello兴趣包的名称的组件
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const INFO_COMPONENT = "INFO"
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const MLSR_COMPONENT = "mlsr"
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// 正常收到数据包的触发函数
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type DataCallback = func(interest *packet.Interest, data *packet.Data)
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// 收到NACK的触发函数
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type NackCallback = func(interest *packet.Interest, nack *packet.Nack)
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// 超时未响应的触发函数
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type TimeoutCallback = func(interest *packet.Interest)
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//type OptionalNack = *packet.Nack
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type HelloProtocol struct {
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m_face *logicface.LogicFace
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m_scheduler *lsdb.MlsrScheduler
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m_keychain *security.KeyChain
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mlsrConfig *common.MlsrConfig
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m_routingTable *route.RoutingTable
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m_lsdb *lsdb.Lsdb
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m_adjacencyList *lsa.AdjLsaAdjacenctList
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// 收包池
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receivePacketQue chan *packet.Interest // 从其它路由器收包后，放入该队列
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state bool // 程序生成状态， true 为正常运行， false 为关闭状态
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}
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//
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// Init
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// @Description: Hello协议-初始化
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// @receiver hp
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// @param face
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// @param scheduler
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// @param keychain
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// @param mlsrConfig
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// @param routingTable
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// @param mlsdb
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//
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func (hp *HelloProtocol) Init(face *logicface.LogicFace,
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scheduler *lsdb.MlsrScheduler,
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keychain *security.KeyChain, mlsrConfig *common.MlsrConfig,
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routingTable *route.RoutingTable, mlsdb *lsdb.Lsdb) {
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hp.m_face = face
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hp.m_scheduler = scheduler
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hp.m_keychain = keychain
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hp.mlsrConfig = mlsrConfig
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hp.m_routingTable = routingTable
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hp.m_lsdb = mlsdb
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hp.m_adjacencyList = mlsrConfig.GetAdjacencys()
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// todo mlsr大联调时应取消以下代码的注释
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// 构造接收hello兴趣包的前缀
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name, err := component.CreateIdentifierByString(
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hp.mlsrConfig.GetRouterPrefix().ToUri() + "/" + MLSR_COMPONENT + "/" + INFO_COMPONENT)
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if err != nil {
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common2.LogFatal("HelloProtocol Setting interest filter for Hello interest error, interest generate wrong.")
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return
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}
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// 设置监听前缀
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err = hp.m_face.RegisterIdentifier(name, 3000)
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if err != nil {
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common2.LogFatal("HelloProtocol Setting interest filter for Hello interest error, identifier register wrong.")
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return
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}
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// 开一个线程去接收前缀为hello协议所监听前缀的兴趣包，并进行处理
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hp.receivePacketQue = make(chan *packet.Interest, 1000)
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hp.state = true
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// 启动处理接收到的包的协程
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go hp.dealWithRecvPktRoutine()
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// 启动从客户端接收包的协程
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go hp.recvPacketFromClientRoutine()
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}
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func (hp *HelloProtocol) expressInterest(interestName *component.Identifier, seconds uint32) {
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common2.LogDebug("HelloProtocol Expressing Interest: " + interestName.ToUri())
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interest := packet.NewInterest()
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interest.SetName(interestName)
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interest.SetInterestLifeTime(2000)
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// todo 这里需要实现的是，将兴趣包通过face发出，并对超时、nack、正常应答三种情况进行处理
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}
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