From owner-freebsd-current@freebsd.org Mon Aug 24 15:19:23 2020 Return-Path: Delivered-To: freebsd-current@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 9A5593C42A0 for ; Mon, 24 Aug 2020 15:19:23 +0000 (UTC) (envelope-from shawn.webb@hardenedbsd.org) Received: from mail-qv1-xf2f.google.com (mail-qv1-xf2f.google.com [IPv6:2607:f8b0:4864:20::f2f]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BZwlG17ntz3TpF for ; Mon, 24 Aug 2020 15:19:21 +0000 (UTC) (envelope-from shawn.webb@hardenedbsd.org) Received: by mail-qv1-xf2f.google.com with SMTP id t6so3885385qvw.1 for ; Mon, 24 Aug 2020 08:19:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition; bh=lu2rEogQv9AU1K+alk+xpLLabHEzf26t+449dfO82X0=; b=WQt+pok6jIduCIeKfGgzTt0+JEuDc2QypT2zn9nZrR0LLZVqwBvDCWI9Uyoz6xgM8M UgHIPwItdP5W9G+9E1Y/z9tnIJhp+B4ZiuDzvQ8oOOkQgv/qsaK72VfYQk2ySENnWwMX XA7cAp/y45CRZVZ2whBzR/5uWwiKmL3ghYOiEaEGxhItImz7KgOTOzulcOc83ZobbMGz q/jyVu4DQD1r2hPiKJqAPEQEQXqpGU/yOl/9sbFP3hhLSs2Vp6RxYKGB0UVYo9fDmlbX UNM5J2jMAluM/Pfi2GqpbhNWUOvG4JvhrB07vs3hdDm3jg93xiYfNltag9OA5f7GjXIJ JITg== X-Gm-Message-State: AOAM533VvO19uR3f1BBVV5yq02PvE3K0LUenyFdyKTsN6WrtjiXAfVN2 At0xpTWhAxDbyajoMfvHWnEyDUaoOQ3Y5gpWWqCJX1Eb2m8Lw2YW0sS32e7zyPJ2ZUeulhlopIp U5orC24CIfGVGDlyX8dGOqUqpMyQUcSBO0mk+rCG3o2t99QZi5ONgl+SJjQAHELS3tOPn9TFyKa cJ7kpFCg1f8w== X-Google-Smtp-Source: ABdhPJzPnhKqpi79k3r9KtawSevL+JyNuITr3Z70Cx/vy/IR5cI2hDTzg2GBSHWjS0Jn+0cIQMy28g== X-Received: by 2002:ad4:500c:: with SMTP id s12mr5432632qvo.101.1598282357603; Mon, 24 Aug 2020 08:19:17 -0700 (PDT) Received: from mutt-hbsd (75-148-2-186-WashingtonDC.hfc.comcastbusiness.net. [75.148.2.186]) by smtp.gmail.com with ESMTPSA id x198sm10049315qka.37.2020.08.24.08.19.16 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2020 08:19:16 -0700 (PDT) Date: Mon, 24 Aug 2020 11:19:16 -0400 From: Shawn Webb To: freebsd-current@freebsd.org Subject: Length of ZFS volume names Message-ID: <20200824151916.rigl2ov6wp25mj5i@mutt-hbsd> X-Operating-System: FreeBSD mutt-hbsd 13.0-CURRENT-HBSD FreeBSD 13.0-CURRENT-HBSD X-PGP-Key: http://pgp.mit.edu/pks/lookup?op=vindex&search=0xFF2E67A277F8E1FA MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="qordeeddq3yuyl6f" Content-Disposition: inline X-Rspamd-Queue-Id: 4BZwlG17ntz3TpF X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.70 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[hardenedbsd.org:s=google]; NEURAL_HAM_MEDIUM(-1.04)[-1.038]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_THREE(0.00)[3]; DMARC_NA(0.00)[hardenedbsd.org]; NEURAL_SPAM_SHORT(0.44)[0.439]; DKIM_TRACE(0.00)[hardenedbsd.org:+]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::f2f:from]; SIGNED_PGP(-2.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; MID_RHS_NOT_FQDN(0.50)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Aug 2020 15:19:23 -0000 --qordeeddq3yuyl6f Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hey FreeBSD peeps, The zfs(8) manpage says that the maximum length of a dataset name is MAXNAMELEN (256 bytes). I've created a ZFS volume that has a dataset name length of 62. I don't see the ZFS volume in /dev/zvol and I noticed this sanitized error in dmesg: Aug 24 11:07:24 bh-build-01 kernel: [2395] ZFS WARNING: Unable to create ZV= OL tank/bhyve/productname/dev/users/username/username-shortened_productname= -dev-01/disk-01 (error=3D63). So I'm left wondering, does devfs have a smaller limit than ZFS for node paths? Thanks, --=20 Shawn Webb Cofounder / Security Engineer HardenedBSD GPG Key ID: 0xFF2E67A277F8E1FA GPG Key Fingerprint: D206 BB45 15E0 9C49 0CF9 3633 C85B 0AF8 AB23 0FB2 https://git-01.md.hardenedbsd.org/HardenedBSD/pubkeys/src/branch/master/Sha= wn_Webb/03A4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc --qordeeddq3yuyl6f Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEA6TL67gupaZ9nzhT/y5nonf44foFAl9D2nEACgkQ/y5nonf4 4frtKRAAp7/+UdUa4bsyaf8nslqnPh2v2uOPOQAtWXDoh6c5llKCL5DqzjZY/LHu Y8vG+XxMaQQ2+xCdmjfqfSbO7qISsg4SfJo0lzAiDSo4EYxPYk/YSxghkC5MAYsQ 5MaDGWZrXMlZgNpKJKBEtrzFux2H3Yi8lMrpV57x1zSWAUJAWmx+doHCqDOYYFWN I61v8x1+L8XXD9SBALzqqH6Q305t/J4fNrhH5q6yKRXLXBpzvPibeZ3eRzPNAICE itWe39I/eI9R3CXdvIfWNTqi+7I25FsoluOBTuiD5XktMDQmiEwvEnIA48owulP+ tqzP5muT2zvssZH7NYYMR8cLg6YR+9u1TdS0j3jjtQpO5nqKBmCPLBWdzrC6S6Ec 9Aaprw82+nTE3a/x13AMTDHpgUAjhf7qZZXdBNxnkmJZxPfeYefS8sXRIhMN3ikF GKbKI8UuaCIzeQ4n33iLJ1I1LdT7lSu+izaR5AhtDbhXV9JtWbJ4Xk+WUm0wblpg 1RjtCsYIYi3NBt8Ie/cNCmWuY0xGZB5XUS/3MpKJr/pNsripukfOLIrREr4Yq/1L S8DURY0j2y+h8AQMFfYGLa07z/FwKSjRbSjJEV/yafyGT0idQMlV9RGKHCgL/lOO UyHOjCT0a8OrkrjNO/V2xs5hJffOg1Fw5tXvOfRploLH93DkjE0= =z2wG -----END PGP SIGNATURE----- --qordeeddq3yuyl6f--