1.FlowHandlePacketUpdate
Assume the first packet is in to-server direction.
2.StreamTcpPseudoPacketCreateDetectLogFlush
3.StreamTcpPacketSwitchDir
Change the direction of packet while receiving SYN/ACK(the packet sent by the server in the TCP 3-way-handshake) and the following flags are disabled.
stream:
midstream: true
async-oneside: true
本文探讨了TCP流处理中的关键步骤,包括FlowHandlePacketUpdate处理首个入向数据包,StreamTcpPseudoPacketCreateDetectLogFlush操作,以及StreamTcpPacketSwitchDir在接收SYN/ACK期间改变数据包方向的技术细节,尤其是在TCP三步握手过程中由服务器发送的数据包及后续标志位禁用情况下的处理。
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