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目前网络层分发了数据包到tcp端，tcp的handlepacket把数据存到一个队列中并提醒事件驱动机制来取数据 取到数据后先进行一个解析 确认他是一个SYN包 然后解析SYN的相关选项 对于合法的数据包 开启一个goroutine去执行三次握手的第二步：返回确认包 TODO 返回确认包的实现
25 lines
495 B
Go
25 lines
495 B
Go
package tcp
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import (
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"log"
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"netstack/tcpip"
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)
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// The following are used to set up sleepers.
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const (
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wakerForNotification = iota
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wakerForNewSegment
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wakerForResend
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wakerForResolution
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)
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const maxSegmentsPerWake = 100
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// protocolMainLoop 是TCP协议的主循环。它在自己的goroutine中运行，负责握手、发送段和处理收到的段
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func (e *endpoint) protocolMainLoop(handshake bool) *tcpip.Error {
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for {
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log.Println("三次握手机制在这里实现")
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select {}
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}
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}
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