[patch] wg: add support for peer names using a file in userspace

[Jason A. Donenfeld]

Hi Lonnie,

Thanks for sending this to the mailing list. Indeed it got lost in the
fold of disorganized email filters when you sent it to me directly
twice earlier; sorry about that.

I'm not certain this is the right approach -- having wg(8) rely on
fixed filesystem paths, and splitting peer configuration information
across three places (original config file, peer data file, kernel).

I think the way forward for this kind of feature would be what I
proposed in an earlier thread, of attaching it to the kernel object,
just like ifalias does or netfilter's comment target. However, the
question I'm still faced with is -- is this really necessary? I
understand that it's _cool_, and adding bells and whistles is fun and
exciting, but I wonder if there a complete system that would actually
benefit form having this that wouldn't already have a better place to
do it?

Jason