From owner-freebsd-fs@freebsd.org Thu Nov 21 17:19:37 2019 Return-Path: Delivered-To: freebsd-fs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 4CB341C578C for ; Thu, 21 Nov 2019 17:19:37 +0000 (UTC) (envelope-from jbe-mlist@magnetkern.de) Received: from sapphire.magnetkern.de (sapphire.magnetkern.de [185.228.139.199]) by mx1.freebsd.org (Postfix) with ESMTP id 47JmWr40jHz3Bpm for ; Thu, 21 Nov 2019 17:19:36 +0000 (UTC) (envelope-from jbe-mlist@magnetkern.de) Received: from titanium (p57A35420.dip0.t-ipconnect.de [87.163.84.32]) by sapphire.magnetkern.de (Postfix) with ESMTPSA id C180D1FF54; Thu, 21 Nov 2019 17:19:24 +0000 (UTC) Date: Thu, 21 Nov 2019 18:19:24 +0100 From: Jan Behrens To: mike tancsa Cc: Martin Simmons , freebsd-fs@freebsd.org Subject: Re: ZFS snapdir readability (Crosspost) Message-Id: <20191121181924.1e82775b8cdde685a41f65b3@magnetkern.de> In-Reply-To: References: <20191107004635.c6d2e7d464d3d556a0d87465@magnetkern.de> <9B22AD46-BE87-4305-9638-74D23AD4C8CA@sarenet.es> <261FE331-EC5C-48C8-9249-9BCBF887CE38@sarenet.es> <913f7040-6e38-452d-6187-e17fae63b652@sentex.net> <20191120144041.7f916360dc0c69bf509c9bd1@magnetkern.de> <20191120163437.691abd369ab9c0a6d7d45ff2@magnetkern.de> <20191120175803.03401c3316fe756cc46f79f1@magnetkern.de> <201911211119.xALBJSIW030544@higson.cam.lispworks.com> <20191121174926.17bf250f4c65964620811554@magnetkern.de> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; amd64-portbld-freebsd12.0) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 47JmWr40jHz3Bpm X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of jbe-mlist@magnetkern.de designates 185.228.139.199 as permitted sender) smtp.mailfrom=jbe-mlist@magnetkern.de X-Spamd-Result: default: False [-1.39 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; NEURAL_HAM_MEDIUM(-0.96)[-0.957,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; R_SPF_ALLOW(-0.20)[+mx]; MV_CASE(0.50)[]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[magnetkern.de]; NEURAL_HAM_LONG(-0.90)[-0.901,0]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(0.16)[ipnet: 185.228.136.0/22(1.47), asn: 197540(-0.63), country: DE(-0.01)]; RCVD_NO_TLS_LAST(0.10)[]; RECEIVED_SPAMHAUS_PBL(0.00)[32.84.163.87.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.10]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:197540, ipnet:185.228.136.0/22, country:DE]; MID_RHS_MATCH_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[] X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Nov 2019 17:19:37 -0000 On Thu, 21 Nov 2019 11:59:50 -0500 mike tancsa wrote: > On 11/21/2019 11:49 AM, Jan Behrens wrote: > > > > As far as I know, there is no way to disable having .zfs/snapshot > > readable by everyone, is that correct? > > I believe so.  Hence the request to add a zfs feature to add a new > option to snapdir along the lines of > > zfs set snapdir=inaccessible > or > zfs set snapdir=rootonly > >     ---Mike > Out of curiosity, would one or two new values (inaccessible and/or rootonly) for the snapdir property require to introduce a new zpool-feature? How about compatibility with other operating systems? Regards, Jan