[Devel] Re: [RFC PATCH 0/2] net: connect to UNIX sockets from specified root

[Alan Cox]

> On that whole subject...
> 
> Do we need a Unix domain socket equivalent to openat()?

I don't think so. The name is just a file system indexing trick, it's not
really the socket proper. It's little more than "ascii string with
permissions attached" - indeed we also support an abstract name space
which for a lot of uses is actually more convenient.

AF_UNIX between roots raises some interesting semantic questions when you
begin passing file descriptors down them as well.

Alan