Re: [PATCH] private mounts

[Jan Hudec <bulb@ucw.cz>]

On Mon, Apr 25, 2005 at 08:00:20 +0200, Miklos Szeredi wrote:
> > Much better is the proposal to make namespaces first-class objects,
> > that can be switched to.  Then users can choose to have themselves a
> > namespace containing their private mounts, if they want it, with
> > login/libpam or even a program run from .profile switching into it.
> 
> It would be good if it could be done just in libpam.  But that would
> require every libpam user to call into it after the fork() or
> whatever, so unshare() and join_namespace() don't mess up the server
> running environment.

They do. The *HAVE* to do! The 'session' stage modifies the environment,
so it must be done after the fork. So if it, in addition to environment,
modifies namespace, it won't make a difference.

> If not, then it would mean modifying numerous programs, having these
> modifications integrated, then having distributions pick up the
> changes, etc.  I would imagine quite a long cycle for this to be
> acutally useful.

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						 Jan 'Bulb' Hudec <bulb@ucw.cz>

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