From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.bugs Subject: bug#45198: 28.0.50; Sandbox mode Date: Mon, 14 Dec 2020 12:12:43 +0100 Message-ID: <0917E396-F78C-45BF-8A1F-5C23CA722D9A@acm.org> References: Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="19543"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Bastien , 45198@debbugs.gnu.org, Stefan Monnier , =?UTF-8?Q?Jo=C3=A3o_?= =?UTF-8?Q?T=C3=A1vora?= To: Philipp Stephani Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Dec 14 12:13:14 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kolmz-00050j-Jz for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 14 Dec 2020 12:13:13 +0100 Original-Received: from localhost ([::1]:51058 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kolmy-0002yE-MV for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 14 Dec 2020 06:13:12 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53590) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kolmr-0002xy-8b for bug-gnu-emacs@gnu.org; Mon, 14 Dec 2020 06:13:05 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:39845) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kolmo-0007mu-9m for bug-gnu-emacs@gnu.org; Mon, 14 Dec 2020 06:13:05 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kolmo-00007o-32 for bug-gnu-emacs@gnu.org; Mon, 14 Dec 2020 06:13:02 -0500 X-Loop: help-debbugs@gnu.org In-Reply-To: Resent-From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 14 Dec 2020 11:13:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45198 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 45198-submit@debbugs.gnu.org id=B45198.1607944371458 (code B ref 45198); Mon, 14 Dec 2020 11:13:02 +0000 Original-Received: (at 45198) by debbugs.gnu.org; 14 Dec 2020 11:12:51 +0000 Original-Received: from localhost ([127.0.0.1]:51391 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kolmc-00007K-Vo for submit@debbugs.gnu.org; Mon, 14 Dec 2020 06:12:51 -0500 Original-Received: from mail18c50.megamailservers.eu ([91.136.10.28]:54854) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kolma-00007A-DL for 45198@debbugs.gnu.org; Mon, 14 Dec 2020 06:12:49 -0500 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1607944367; bh=ngYX7L/8giwQ54bAcIyibDNv6x9topyigBIDb/7HlhY=; h=From:Subject:Date:Cc:To:From; b=KA1digJZZwMqRQ7HOZ4V3wUxYosFec9PCEpC3ejmadH6N7OP56T5rOiiY/H/XPHrx pDpykYrjXZZ960FQOE3vDxWaUq5d7yFout+OnuZq3Ctm0nbykHHT0+BQ9K9tAkrYWB o5nLGZg0qTE41SD5baeCKNneKQD+iyEKDPKUJCoQ= Feedback-ID: mattiase@acm.or Original-Received: from [192.168.0.4] (c188-150-171-71.bredband.comhem.se [188.150.171.71]) (authenticated bits=0) by mail18c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 0BEBCiaD031132; Mon, 14 Dec 2020 11:12:45 +0000 X-Mailer: Apple Mail (2.3445.104.17) X-CTCH-RefID: str=0001.0A782F29.5FD748AE.00D9, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=e5N4tph/ c=1 sm=1 tr=0 a=SF+I6pRkHZhrawxbOkkvaA==:117 a=SF+I6pRkHZhrawxbOkkvaA==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=YIQCrXZNxxJIYbJI_LoA:9 a=CjuIK1q_8ugA:10 X-Origin-Country: SE X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:196041 Archived-At: > The sandboxing technologies I'm aware of are process-based (because = Linux namespaces and kernel syscall filters are per-process), so a = "start sandbox from here" function likely can't be implemented. The = interface should rather be something like=20 If you mean that the sandbox needs to be active from the very start of = the process, I don't see why that has to be the case. It does not appear = to be necessary for macOS, OpenBSD or FreeBSD, nor for at least some the = Linux options I'm aware of. Perhaps I misunderstood, and there may indeed be some desirable = sandboxing methods that require from-exec sandboxing. It is often useful = to allow for a set-up period prior to activating restrictions allowing = for specific files to be opened and so on and can make the sandboxing = itself simpler by being less selective. From-exec sandboxing also precludes using simple forking (without exec) = as a cheap way to start the Emacs subprocess (if somewhat = Unix-specific).