Re: [Xen-devel] [PATCH] xen-2.0: privileged port connections

[Tommi Virtanen <tv@xxxxxxxxxxxxx>]

Ian Pratt wrote:
> For Xen 2.x, unix domain sockets would be too much of a pain to
> implement over Twisted. Kurt's approach gets us closer toward 'secure by
> default'.
That just tells me you don't know twisted
(putting my "Twisted upstream developer" hat on..)

Replace current reactor.listenTCP(port, protocolFactory)
with reactor.listenUNIX(path, protocolFactory).
If there's code that assumes TCP things (transport.getPeer()
to give IP addresses and ports etc), those may need to be fixed,
naturally.

If you would use .tacs, as the recommended Twisted way
of deplying server applications is, that would more like
a configuration file change, done in /etc, as suits the admin.

If you would use strports, that would be switching from
string "8080" to string "unix:/path/to/socket".

The actual protocol mechanics work identically.


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