From: Jeremy Allison <jra@samba.org>
To: Michael Adam <obnox@samba.org>
Cc: vl@samba.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, Jeff Layton <jlayton@samba.org>,
linux-cifs-client@lists.samba.org
Subject: Re: [RFC PATCH] CIFS posix acl permission checking
Date: Thu, 11 Mar 2010 17:53:19 -0800 [thread overview]
Message-ID: <20100312015319.GC27697@samba1> (raw)
In-Reply-To: <E1Npr8D-00A474-O0@intern.SerNet.DE>
On Thu, Mar 11, 2010 at 11:45:29PM +0100, Michael Adam wrote:
>
> When discussing this with Volker today, he had a different idea:
> One could implement a trans2 impersonate call in samba (as a new
> call in the unix extensions) that could be used to transfer the
> session established by the privileged user (root, say) to a
> different user specified as an argument to the call -- without
> the need to give credentials! Then this call could be used in
> the multi user mount scenario: when uid 1000 accesse the cifs
> mount then the root-dispatcher mount would create a new session
> initially as root and issue an impersonate call to user 1000
> directly afterwards.
>
> Wouldn't that be something worth considering?
This world work, but protocol cleanliness-wise it's
*really* horrible :-).
Jeremy.
next prev parent reply other threads:[~2010-03-12 1:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-04 10:50 [RFC PATCH] CIFS posix acl permission checking Jon Severinsson
2010-03-04 13:44 ` simo
2010-03-04 15:21 ` Jon Severinsson
2010-03-04 15:51 ` simo
2010-03-04 17:33 ` Jeremy Allison
2010-03-04 16:18 ` Jeff Layton
2010-03-05 9:47 ` Michael Adam
2010-03-11 22:45 ` Michael Adam
2010-03-12 1:24 ` Jeff Layton
2010-03-12 1:53 ` Jeremy Allison [this message]
2010-03-12 8:09 ` Michael Adam
-- strict thread matches above, loose matches on Subject: below --
2010-03-01 16:00 Jon Severinsson
2010-03-01 15:15 Jon Severinsson
2010-03-01 17:03 ` Matthew Wilcox
2010-03-01 18:33 ` Jon Severinsson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100312015319.GC27697@samba1 \
--to=jra@samba.org \
--cc=jlayton@samba.org \
--cc=linux-cifs-client@lists.samba.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=obnox@samba.org \
--cc=vl@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).