Multihomed server issue

Jason A. Donenfeld Jason at
Wed Sep 20 15:15:32 CEST 2017

Hey again,

It turns out that our new semantics -- of rejecting only if the src IP
doesn't belong to _any_ interface, as opposed to the specific
interface -- nicely map to Linux's PKTINFO interface for userspace. In
working with Mathias on the Go implementation, I produced the
following code snippet that shows this sticky-socket technique using
pure-userspace facilities:

Just FYI, if anybody is curious.


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