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From: Jan Hudec <bulb@ucw.cz>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: pavel@suse.cz, hch@infradead.org, jamie@shareable.org,
	linuxram@us.ibm.com, 7eggert@gmx.de,
	viro@parcelfarce.linux.theplanet.co.uk,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	akpm@osdl.org
Subject: Re: [PATCH] private mounts
Date: Wed, 27 Apr 2005 13:57:54 +0200	[thread overview]
Message-ID: <20050427115754.GA8981@vagabond> (raw)
In-Reply-To: <E1DQjzY-0001no-00@dorka.pomaz.szeredi.hu>

[-- Attachment #1: Type: text/plain, Size: 1678 bytes --]

On Wed, Apr 27, 2005 at 12:42:04 +0200, Miklos Szeredi wrote:
> > > This is the controversial part in all it's glory:
> > > 
> > > 	if (!(fc->flags & FUSE_ALLOW_OTHER) && current->fsuid != fc->user_id)
> > > 		return -EACCES;
> > > 
> > > Leaving it out would gain us what exactly?
> > 
> > Well, if it brings us ugly semantics, keeping those two lines out for
> > a while can help merge a lot...
> 
> To the mount owner the semantics are quite normal.  Others will be
> denied access to the mountpoint, which doesn't introduce any new
> semantics either.

What makes you think Pavel was talking about semantics?!

The point was that:
Ok, there is a strong disagreement about these two lines. Could we have
a patch with everything but these two lines, so it can be integrated
immediately to profit of the testing and generally be useful, and then
the controversial bits when the issue is beaten to death?

So, please, could you send a stripped-down version, that is not safe for
mounting by users, but can be tested for many cases where that is
sufficient?

> If you look at it from the POV of _any_ process, there are NO NEW
> SEMANTICS.  Nothing that programs, scripts or anything has to be
> modified for.  Nothing that could cause _any_ problems later, if this
> check was removed.
> 
> Prove me wrong!

As I understand it, doing things like this is butt ugly. Not just in
fuse -- in NFS, in samba, everywhere where such hacks are employed. But
now they just have enough of those hacks and want a cleaner solution.

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

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  reply	other threads:[~2005-04-27 12:00 UTC|newest]

Thread overview: 147+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <3WVU1-2GE-7@gated-at.bofh.it>
     [not found] ` <3WWn1-2ZC-5@gated-at.bofh.it>
     [not found]   ` <3WWn1-2ZC-3@gated-at.bofh.it>
     [not found]     ` <3WWwR-3hT-35@gated-at.bofh.it>
     [not found]       ` <3WWwU-3hT-49@gated-at.bofh.it>
     [not found]         ` <3WWGj-3nm-3@gated-at.bofh.it>
     [not found]           ` <3WWQ9-3uA-15@gated-at.bofh.it>
     [not found]             ` <3WWZG-3AC-7@gated-at.bofh.it>
     [not found]               ` <3X630-2qD-21@gated-at.bofh.it>
     [not found]                 ` <3X8HA-4IH-15@gated-at.bofh.it>
     [not found]                   ` <3Xagd-5Wb-1@gated-at.bofh.it>
2005-04-25 15:17                     ` [PATCH] private mounts Bodo Eggert <harvested.in.lkml@posting.7eggert.dyndns.org>
2005-04-25 16:18                       ` Ram
2005-04-25 19:10                         ` Jamie Lokier
2005-04-26  9:16                           ` Miklos Szeredi
2005-04-26  9:19                             ` Christoph Hellwig
2005-04-26  9:22                               ` Miklos Szeredi
2005-04-26  9:36                                 ` Christoph Hellwig
2005-04-26  9:41                                   ` Miklos Szeredi
2005-04-26  9:47                                     ` Christoph Hellwig
2005-04-26  9:53                                       ` Miklos Szeredi
2005-04-26  9:56                                         ` Christoph Hellwig
2005-04-26 10:01                                           ` Miklos Szeredi
2005-04-26 10:09                                             ` Christoph Hellwig
2005-04-26 12:08                                               ` Miklos Szeredi
2005-04-26 10:02                                           ` Christoph Hellwig
2005-04-26 13:19                                       ` Pavel Machek
2005-04-26 13:28                                         ` Miklos Szeredi
2005-04-26 20:14                                           ` Pavel Machek
2005-04-27  8:49                                             ` Miklos Szeredi
2005-04-27  9:24                                               ` Pavel Machek
2005-04-27 10:42                                                 ` Miklos Szeredi
2005-04-27 11:57                                                   ` Jan Hudec [this message]
2005-04-27 12:23                                                     ` Miklos Szeredi
2005-04-27 12:39                                                       ` Jan Hudec
2005-04-27 13:22                                                         ` Miklos Szeredi
2005-04-27 14:40                                                           ` Jamie Lokier
2005-04-27 14:58                                                           ` Pavel Machek
2005-04-27 23:21                                                             ` Trond Myklebust
2005-04-28  8:24                                                               ` Pavel Machek
2005-04-28  8:28                                                                 ` Miklos Szeredi
2005-04-28 11:35                                                                 ` Trond Myklebust
2005-04-28 17:58                                                                   ` Bryan Henderson
2005-04-28 19:46                                                                     ` Trond Myklebust
2005-04-28 22:38                                                                       ` Bryan Henderson
2005-04-29  0:35                                                                         ` Trond Myklebust
2005-04-27 14:31                                                   ` Jamie Lokier
2005-04-27 14:46                                                     ` Miklos Szeredi
2005-04-27 14:55                                                       ` Miklos Szeredi
2005-04-27 15:33                                                       ` Martin Mares
2005-04-27 15:50                                                         ` Lars Marowsky-Bree
2005-04-27 16:46                                                           ` Martin Mares
2005-04-27 17:38                                                             ` Miklos Szeredi
2005-04-27 17:54                                                               ` Martin Mares
2005-04-27 18:05                                                                 ` Miklos Szeredi
2005-04-27 18:25                                                                   ` Martin Mares
2005-04-27 18:42                                                                     ` Miklos Szeredi
2005-04-28 13:08                                                                   ` Pavel Machek
2005-04-28 19:41                                                                     ` Miklos Szeredi
2005-04-28 20:21                                                                       ` Pavel Machek
2005-04-27 17:33                                                           ` Miklos Szeredi
2005-04-27 17:39                                                             ` Ram
2005-04-27 17:47                                                               ` Miklos Szeredi
2005-04-27 17:55                                                                 ` Ram
2005-04-27 18:09                                                                   ` Miklos Szeredi
2005-04-27 19:40                                                                     ` Ram
2005-04-27 20:03                                                                       ` Miklos Szeredi
2005-04-27 21:38                                                                         ` Ram
2005-04-28  7:00                                                                           ` Miklos Szeredi
2005-04-28 19:30                                                                             ` Ram
2005-04-27 20:55                                                                       ` Bill Davidsen
2005-04-28  7:24                                                                         ` Miklos Szeredi
     [not found]                                                             ` <20050427174641.GZ4431@marowsky-bree.de>
2005-04-27 17:52                                                               ` Miklos Szeredi
2005-04-26 10:00                                     ` Andrew Morton
2005-04-26 10:04                                       ` Christoph Hellwig
2005-04-26 10:14                                         ` Andrew Morton
2005-04-26 10:38                                           ` Christoph Hellwig
2005-04-26 13:05                                             ` Eric Van Hensbergen
2005-04-26 14:14                                               ` Miklos Szeredi
2005-04-26 15:01                                                 ` Eric Van Hensbergen
2005-04-26 18:55                                         ` Bryan Henderson
2005-04-26  9:30                             ` Martin Mares
2005-04-25 19:02                       ` Bryan Henderson
2005-04-26  8:58                         ` Jan Hudec
2005-04-26 11:48                         ` Bodo Eggert
2005-04-26 17:10                           ` Bryan Henderson
2005-04-26 20:08                             ` Bodo Eggert
2005-04-26 22:07                               ` Bryan Henderson
2005-04-27  8:18                                 ` Bodo Eggert
2005-04-25 19:03                       ` Jamie Lokier
2005-04-26  9:05                       ` Jan Hudec
2005-04-26 11:46                         ` Bodo Eggert
2005-04-25 10:49 Heikki Orsila
  -- strict thread matches above, loose matches on Subject: below --
2005-04-24 20:08 Miklos Szeredi
2005-04-24 20:13 ` Al Viro
2005-04-24 20:45   ` Miklos Szeredi
2005-04-24 20:18 ` Christoph Hellwig
2005-04-24 20:50   ` Miklos Szeredi
2005-04-24 20:54     ` Al Viro
2005-04-24 20:59       ` Miklos Szeredi
2005-04-24 21:06         ` Christoph Hellwig
2005-04-24 21:12           ` Jamie Lokier
2005-04-24 21:06         ` Al Viro
2005-04-24 21:15           ` Miklos Szeredi
2005-04-24 21:19             ` Al Viro
2005-04-24 21:29               ` Miklos Szeredi
2005-04-24 21:39                 ` Jamie Lokier
2005-04-25  7:10                 ` Jan Hudec
2005-04-25  9:58                   ` Miklos Szeredi
2005-04-25 11:45                     ` Jan Hudec
2005-04-30  8:35                     ` Christoph Hellwig
2005-04-30  9:25                       ` Miklos Szeredi
2005-04-30  9:42                         ` Jamie Lokier
2005-04-30 10:14                           ` Miklos Szeredi
2005-04-30 14:36                             ` Jamie Lokier
2005-04-30 15:59                               ` Miklos Szeredi
2005-04-30 16:42                                 ` Jamie Lokier
2005-04-30 17:07                                   ` Miklos Szeredi
2005-04-30 18:20                                     ` Olivier Galibert
2005-04-30 23:58                                       ` Jamie Lokier
2005-05-01  2:39                                         ` Ram
2005-04-30 23:54                                     ` Jamie Lokier
2005-05-01  5:56                                       ` Miklos Szeredi
2005-05-01  6:39                                         ` Miklos Szeredi
2005-05-01 15:41                                         ` Eric Van Hensbergen
2005-05-11  9:00                         ` Christoph Hellwig
2005-05-11 10:42                           ` Miklos Szeredi
2005-04-24 21:43               ` Jamie Lokier
2005-04-24 22:06                 ` maciek
2005-04-25  7:14                 ` Jan Hudec
2005-04-27  9:14                 ` Helge Hafting
2005-04-25  9:48               ` Olivier Galibert
2005-04-25 16:37                 ` Tim Hockin
2005-04-30  8:37                 ` Christoph Hellwig
2005-04-25 21:09               ` Bryan Henderson
2005-04-24 21:38           ` Jamie Lokier
2005-04-24 22:20             ` Ram
2005-04-24 22:22               ` Jamie Lokier
2005-04-25  6:00             ` Miklos Szeredi
2005-04-25  6:41               ` Ram
2005-04-25  9:55                 ` Miklos Szeredi
2005-04-25  7:22               ` Jan Hudec
2005-04-25 10:08                 ` Miklos Szeredi
2005-04-25 15:20             ` Pavel Machek
2005-04-25 19:07               ` Jamie Lokier
2005-04-26  9:29                 ` Pavel Machek
2005-04-26 14:07                   ` Jamie Lokier
2005-04-28 13:28                     ` Eric Van Hensbergen
2005-04-28 19:22                       ` Jamie Lokier
2005-04-28 13:47                     ` Eric Van Hensbergen
2005-04-28 19:20                       ` Jamie Lokier
2005-04-28 19:39                         ` Ram
2005-04-28 22:08                           ` Jamie Lokier
2005-04-29  7:57                             ` Ram
2005-04-29 14:13                               ` Miklos Szeredi
2005-04-29 14:42                                 ` Jamie Lokier
2005-04-30  8:33                 ` Christoph Hellwig
2005-04-30 16:47                   ` Ram

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