From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id y7GnJ19sWGE8EgEAgWs5BA (envelope-from ) for ; Sat, 02 Oct 2021 16:27:43 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id +JCaIl9sWGGbTAAAB5/wlQ (envelope-from ) for ; Sat, 02 Oct 2021 14:27:43 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id F200E30D4B for ; Sat, 2 Oct 2021 16:27:42 +0200 (CEST) Received: from localhost ([::1]:55212 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mWfzK-0007xR-25 for larch@yhetil.org; Sat, 02 Oct 2021 10:27:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47040) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mWfz6-0007uH-D9 for guix-devel@gnu.org; Sat, 02 Oct 2021 10:27:28 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:54028) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mWfz5-0004XG-Lx; Sat, 02 Oct 2021 10:27:27 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=36488 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mWfz5-0006sD-CT; Sat, 02 Oct 2021 10:27:27 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Maxime Devos Subject: Re: Code sharing between system and home services (was Re: On the naming of System and Home services modules.) References: <87tuiajdv1.fsf@yoctocell.xyz> <87a6k2ng48.fsf@dismail.de> <875yukdh6a.fsf@gnu.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 11 =?utf-8?Q?Vend=C3=A9miaire?= an 230 de la =?utf-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Sat, 02 Oct 2021 16:27:25 +0200 In-Reply-To: (Maxime Devos's message of "Wed, 29 Sep 2021 15:52:51 +0200") Message-ID: <87zgrrwlgy.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel@gnu.org, Xinglu Chen , Maxim Cournoyer , Andrew Tropin Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1633184863; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=zLDi2Pn7+PnuWpG5EIILA28yJZLK+uVSUvuxcLeP4sM=; b=uAVj1mJibjKMktqs3H1wQYDHU+TSPHS4IlSX4qq+EQywloGAsmdGAGbV/d0lP8G1x0pfDi smZuQYMYR0S4qplYsF5XbpSMcoBK/lRdNEwuI6JeSroFBltX29n3VdzkIqHIlEJ3REs2rL XlL2FO80HhiPX2xrGRwMIg0SlS1SpYRMdYdrA5KbrTu1zoCkiZbCKi/Zceavtw39rPPWTk HEuoqliNNWJlGcs0ZoRNGoi6GyMLJkgosOTO6N794IAGIxPXM2h8dvbYpX42UFQSOOoFio 0fS3QJmLtdal0Hro1kHWwxnmI/wSwaTaFMQQmp+H3rDMicahNv8l4Xn7lWet4w== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1633184863; a=rsa-sha256; cv=none; b=pDSHA1RD6zfi4wGfrswJBw+Z0bRqpV1BgpNwKS7MwvWy6nUZHAshA/xeEp4QR0yDxRIyTQ DO8rhQV2hguLcpAuXkCOsnZiVp1ogi2V8jtf8t1xpXJmIVfyABVbB/OMTl9tfSuembLnpj T8Al03dYLyvV9QFAw/ZMf4WJ7/I9vP3AJ2BySuqBk6cqoiq2DpLIg3bMhK4y64Yp5cOuNL 3zC3OpUvazfS/ajUUqPXOgw/yJ5VcE85xA1Hq/UHN1NWl5x5+TsF/d+C4fcLjFaHqDRSmq 65NIw9MhItfS0wiyfr0awg++eG7qvgBWqmcRfbTMQUYsG1JJlaIkog5ooR3Y1Q== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Spam-Score: -1.40 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: F200E30D4B X-Spam-Score: -1.40 X-Migadu-Scanner: scn0.migadu.com X-TUID: LCtFRzTJxMyF Maxime Devos skribis: > Ludovic Court=C3=A8s schreef op di 28-09-2021 om 14:21 [+0200]: >> Hi, >>=20 >> Joshua Branson skribis: >>=20 >> > Apologies if I'm speaking for something I know very little >> > about...Wouldn't it be nice if guix home services would accept a user >> > and a group field? For the syncthing service, perhaps the user wants = to >> > limit Syncthing's runtime permissions. So instead of running as the >> > user, the user would run synthing as a different user with less permis= sions? >>=20 >> That=E2=80=99s not possible unless the calling user is root, since you= =E2=80=99d need >> the ability to switch users somehow. > > On Debian, a user has a list of =E2=80=98subordinate user IDs=E2=80=99 wh= ich can be switched > to without root: . > > Maybe "guix home" could use that mechanism, and this mechanism could be i= mplemented > on Guix System as well? Yes but that requires unprivileged user namespaces, which may or may not be supported=E2=80=94e.g., likely unsupported when using Home on a foreign distro. Ludo=E2=80=99.