反向代理连接服务端时获取的端口限制在10000到65535之间问题

F-Stack / f-stack

F-Stack is an user space network development kit with high performance based on DPDK, FreeBSD TCP/IP stack and coroutine API.

http://www.f-stack.org

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Closed Arnoldream closed 9 months ago

Arnoldream commented 9 months ago

[https://github.com/F-Stack/f-stack/blob/dev/freebsd/netinet/in_pcb.c -我测试反向代理时发现连接服务端时获取的端口没有限制在10000到65535之间，通过查看代码发现in_pcb_lport_dest函数中lastport给lport赋值时执行了htons，不是很理解，希望能解惑。 ++lastport; if (lastport < first || lastport > last) lastport = first; lport = htons(*lastport);

Arnoldream commented 9 months ago

是转换字节序后进行检查，理解错误