From: Andy Lutomirski <luto@amacapital.net>
To: David Laight <David.Laight@aculab.com>
Cc: "Aleksa Sarai" <cyphar@cyphar.com>,
"Stas Sergeev" <stsp2@yandex.ru>,
"Serge E. Hallyn" <serge@hallyn.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Stefan Metzmacher" <metze@samba.org>,
"Eric Biederman" <ebiederm@xmission.com>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Andy Lutomirski" <luto@kernel.org>,
"Christian Brauner" <brauner@kernel.org>,
"Jan Kara" <jack@suse.cz>, "Jeff Layton" <jlayton@kernel.org>,
"Chuck Lever" <chuck.lever@oracle.com>,
"Alexander Aring" <alex.aring@gmail.com>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-api@vger.kernel.org" <linux-api@vger.kernel.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Christian Göttsche" <cgzones@googlemail.com>
Subject: Re: [PATCH v5 0/3] implement OA2_CRED_INHERIT flag for openat2()
Date: Mon, 6 May 2024 14:53:23 -0700 [thread overview]
Message-ID: <CALCETrXU+F3cHR+RMvvypCPP3pBZK3WkS5sSEVqLp1rjK8yMpQ@mail.gmail.com> (raw)
In-Reply-To: <f8fafe1953ed41828a4c98187964477b@AcuMS.aculab.com>
On Mon, May 6, 2024 at 12:35 PM David Laight <David.Laight@aculab.com> wrote:
>
> ...
> > So I want a way to give *an entire container* access to a directory.
> > Classic UNIX DAC is just *wrong* for this use case. Maybe idmaps
> > could learn a way to squash multiple ids down to one. Or maybe
> > something like my silly credential-capturing mount proposal could
> > work. But the status quo is not actually amazing IMO.
>
> Isn't that what gids are for :-)
I dunno. How, exactly, is a regular non-root user of a Linux computer
supposed to configure gids in their home directory so that a container
(which uses subgids, possibly dynamically allocated) gets access to
the correct thing? And why should that poor user need to think about
this at all?
--Andy
next prev parent reply other threads:[~2024-05-06 21:53 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 13:33 [PATCH v5 0/3] implement OA2_CRED_INHERIT flag for openat2() Stas Sergeev
2024-04-26 13:33 ` [PATCH v5 1/3] fs: reorganize path_openat() Stas Sergeev
2024-04-26 13:33 ` [PATCH v5 2/3] open: add O_CRED_ALLOW flag Stas Sergeev
2024-04-27 2:12 ` kernel test robot
2024-04-26 13:33 ` [PATCH v5 3/3] openat2: add OA2_CRED_INHERIT flag Stas Sergeev
2024-04-28 16:41 ` [PATCH v5 0/3] implement OA2_CRED_INHERIT flag for openat2() Andy Lutomirski
2024-04-28 17:39 ` stsp
2024-04-28 19:15 ` stsp
2024-04-28 20:19 ` Andy Lutomirski
2024-04-28 21:14 ` stsp
2024-04-28 21:30 ` Andy Lutomirski
2024-04-28 22:12 ` stsp
2024-04-29 1:12 ` stsp
2024-04-29 9:12 ` Christian Brauner
2024-05-06 7:13 ` Aleksa Sarai
2024-05-06 17:29 ` Andy Lutomirski
2024-05-06 17:34 ` Andy Lutomirski
2024-05-06 19:34 ` David Laight
2024-05-06 21:53 ` Andy Lutomirski [this message]
2024-05-07 7:42 ` Christian Brauner
2024-05-07 20:38 ` Andy Lutomirski
2024-05-08 7:32 ` Christian Brauner
2024-05-08 17:30 ` Andy Lutomirski
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