From nobody Wed Jul 02 21:02:14 2025 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4bXXR15mMXz60wQ3 for ; Wed, 02 Jul 2025 21:02:37 +0000 (UTC) (envelope-from rick.macklem@gmail.com) Received: from mail-ej1-x631.google.com (mail-ej1-x631.google.com [IPv6:2a00:1450:4864:20::631]) (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 "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4bXXR10SYLz3WbT for ; Wed, 02 Jul 2025 21:02:37 +0000 (UTC) (envelope-from rick.macklem@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20230601 header.b="AE7+TJ/M"; spf=pass (mx1.freebsd.org: domain of rick.macklem@gmail.com designates 2a00:1450:4864:20::631 as permitted sender) smtp.mailfrom=rick.macklem@gmail.com; dmarc=pass (policy=none) header.from=gmail.com Received: by mail-ej1-x631.google.com with SMTP id a640c23a62f3a-ae3703c2a8bso968748066b.0 for ; Wed, 02 Jul 2025 14:02:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1751490149; x=1752094949; darn=freebsd.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=1Wo6f8lpSAV/sRHtGYRUJ+GaBFNP767Y0qwPtIfM9yA=; b=AE7+TJ/MCfCOY0qlKIMiuF9qnnNg84xvBBRgJEJZVHcvQqu0UP8HDhNgdROi0ZL0FL OcZaPjJeFSnxLjARnPp3TZT5CgZ7C1WRxkCwexX4JiHHOsVz1H44fDC/F7Qzn9tsjL2m wtYUP7LPhbz4QueEPC+ksMU+1X/KVjKdeeDqVakrqzBH0k06J+H+cs7T+iW1IkaZQ35A vOWVYy55uxU8Rdm2snMYT+JVagtbYvE9XrG5z3XK9Tse/4mW/7Jkgb8TPyICcJWLXD1s vUUYNlT3tHHh1/qcyeYaqoOLDk4EdrJJv7XMDYojaXsOvPjxySC8r5s7nZs+C56eMXPz 61Qw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751490149; x=1752094949; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=1Wo6f8lpSAV/sRHtGYRUJ+GaBFNP767Y0qwPtIfM9yA=; b=W0pzE4WBBaxE8F3kRSZYw3f97FcZbMu0dO/ZhECvUnYvYdL3xrw/7lYq5aVBSKXieC Tn6EpbfZ3vo7tnFF7ZSwGvd+6iEdEnUTlQbvEC9MxNwVZyXLhR+jBTg0utHcVTZZ9ica e7bKvivFSawQdqvywNpM0zLfr0l7Cb71YPS6adg8xf+/nRNtZaMdK97x6+HIQX+/2S6h rQwMJ+ZI/qOvze+6BF5VvVzFVhyrVsbkFYzHNAKrk+C3z4MsHIuwVdhhi7RChPWhlBoV /VOjxcFgiGmJXxXqhqVvFBq5PshhWfZ74VQmH/KZcHamo46drP7T/0y53VhzbMzo2hkk PmPQ== X-Gm-Message-State: AOJu0YwmIVg2Y3nYANMVgBNSm47IWIFwiONjT88svfDKrxiXT2hi9Syn 2fRlUkKN0AdBIc94IUkEDU3weDcx4zUH90oCtEBlAgjh7YhnNdN7EaOemnC9Z3FrXupgcRqEJl7 B7q0wRUVIyso1Ui46gOk4r43hAAkKhb7G X-Gm-Gg: ASbGncv/avvBrozoQZZIkGJqLMIz4s1Lg62YDSVYKa/Gbk6pHOfGMqRH/O+sDJr8rTj +c6Yg7FudQKSyq33PFB7rfOB1526S1ABISkoa6c60NMTws0aKlyHujDlmC4D7uPBKOJ0x7MqblK smSMtZ08rxnjRZVnBgAVpHfLssU5Bm4blVxoxHu23RNZ/kg53VGbm+WyXf+0EaCco4J7aue7hfX 4g= X-Google-Smtp-Source: AGHT+IHVeR6YJGPdpcl6L235wiitVqhMc0JyYU5ddg4dZpJdImnLYYxrQXXLhnABOqpUGHp2tEZMx6+q+tpuwN7fT8g= X-Received: by 2002:a17:907:805:b0:ad8:a329:b490 with SMTP id a640c23a62f3a-ae3d846352emr69193266b.23.1751490148415; Wed, 02 Jul 2025 14:02:28 -0700 (PDT) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org MIME-Version: 1.0 From: Rick Macklem Date: Wed, 2 Jul 2025 14:02:14 -0700 X-Gm-Features: Ac12FXwTzCihFGZtbYQXgpzSIREcnELTVjOqbnZok4uaGpo5BbTmdjZy9qEOTqM Message-ID: Subject: RFC: checking file systems support UF_HIDDEN, UF_SYSTEM To: FreeBSD CURRENT Content-Type: text/plain; charset="UTF-8" X-Spamd-Result: default: False [-4.00 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.999]; NEURAL_HAM_LONG(-1.00)[-0.998]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_ONE(0.00)[1]; FREEMAIL_ENVFROM(0.00)[gmail.com]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; MID_RHS_MATCH_FROMTLD(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; TAGGED_FROM(0.00)[]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; RCVD_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; MISSING_XM_UA(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::631:from] X-Rspamd-Queue-Id: 4bXXR10SYLz3WbT X-Spamd-Bar: --- Hi, I am implementing the "hidden" and "system" attributes for NFSv4 using UF_HIDDEN and UF_SYSTEM. In a couple of places in the code, I need to know if a file system supports these flags. I can think of two ways to do this. #1 - Create a new VFCF_HIDSYS flag that is set via VFS_SET() for file systems that support the UF_HIDDEN and UF_SYSTEM flags and test for that flag being set. or #2 - Write it this way... if (strcmp(vp->v_mount->mnt_vfc->vfc_name, "zfs") != 0 || strcmp(vp->v_mount->mnt_vfc->vfc_name, "ufs") != 0 || strcmp(vp->v_mount->mnt_vfc->vfc_name, "msdosfs") != 0 || strcmp(vp->v_mount->mnt_vfc->vfc_name, "tmpfs") != 0) Which do you think is preferable (or do you have another idea)? Thanks for any comments, rick