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From: roger peppe <rogpeppe@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] problems with redirection in rc
Date: Tue,  5 May 2009 16:44:27 +0100	[thread overview]
Message-ID: <df49a7370905050844w5848295k20e5e7109144378b@mail.gmail.com> (raw)
In-Reply-To: <634dfe943e8336054b4bb624596e421c@quanstro.net>

in that case, surely it'd be trivial to make a root-suid
executable that allows namespace manipulation in
a non-sensitive area (e.g. /mnt)? maybe it could
be distributed as part of p9p meaning hacks like
$NAMESPACE could go away under linux.
maybe it already has been, and i'm as ignorant as usual.

2009/5/5 erik quanstrom <quanstro@quanstro.net>:
>> yes. it gets around the fact that linux doesn't have per-process namespaces
>> (well if it does, plan9port doesn't use them), so there's no easy
>> way to have a different /dev/label for each 9term.
>
> linux does have per-process namespaces.  unfortunately, since linux
> security depends on the namespace, you are not allowed to use
> per process namespaces unless you're the superuser.
>
> - erik
>
>



  reply	other threads:[~2009-05-05 15:44 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-05 13:29 Rudolf Sykora
2009-05-05 13:59 ` roger peppe
2009-05-05 14:36   ` Rudolf Sykora
2009-05-05 14:07 ` Russ Cox
2009-05-05 14:54   ` Rudolf Sykora
2009-05-05 14:59     ` erik quanstrom
2009-05-05 15:20     ` roger peppe
2009-05-05 15:23       ` erik quanstrom
2009-05-05 15:44         ` roger peppe [this message]
2009-05-05 16:00           ` erik quanstrom
2009-05-05 16:00           ` Russ Cox
2009-05-05 14:17 ` Anthony Sorace
2009-05-05 14:28   ` Rudolf Sykora
2009-05-05 14:48   ` Rudolf Sykora

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