编写OS X内核扩展以实现Linux的SO_BINDTODEVICE套接字选项 [英] Writing an OS X kernel extension to implement Linux's SO_BINDTODEVICE socket option

问题描述

我希望能够通过特定的网络接口强制套接字.在Linux中，内核允许程序员通过设置所述套接字选项来实现这一目标-但在OS X中，我处于黑暗中.

I want to be able to force a socket through a specific network interface. In Linux the kernel allows a programmer to achieve this by setting said socket option - but in OS X I'm in the dark.

因此，我的标题问题-可能吗?完成了吗我不打算重新实现IP堆栈，而只是启用对接口绑定选项的使用.

And hence my title question - is it possible? Has it been done? I'm not looking into re-implementing the IP stack, just enabling the usage of the bind-to-interface option.

推荐答案

使用RFC 3542接口选择传出接口(IPV6_PKTINFO). http://tools.ietf.org/html/rfc3542#section-6

Use the RFC 3542 interface for selecting outgoing interfaces (IPV6_PKTINFO). http://tools.ietf.org/html/rfc3542#section-6

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