From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 460B2C77B78 for ; Wed, 19 Apr 2023 18:55:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229583AbjDSSy7 (ORCPT ); Wed, 19 Apr 2023 14:54:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229477AbjDSSy6 (ORCPT ); Wed, 19 Apr 2023 14:54:58 -0400 Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [IPv6:2a00:1450:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CEB10469A for ; Wed, 19 Apr 2023 11:54:57 -0700 (PDT) Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-2f9b9aa9d75so17382f8f.0 for ; Wed, 19 Apr 2023 11:54:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1681930496; x=1684522496; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=A4+Y7zHI+zl4Rj7jO8AHbiYvQ8UrVkgtOSez+8rlDNY=; b=ciw0YwtFDdpHe9xgejeedwaO6O0BdEG4NP4ORrdDF5SfZuJ/QfmveTsCFIojG32/L2 TvJIciW7t/RfZEHNSU+Ipf1gSvsWBf5i7451BLzijcH9pnlx6E+A2arFTmnyf62sO6Zn kxkhYXTDitOyo/WnjICfuAaCv2z3UzvsVraCNpV1QeZgsPzWVmqKJHvhfYbn6dtzAbHz K2UTHII3O4vnJvYtqCiEKctjeIALwGJUIwj4bYLf+mDq+vyk9KoX11WBoxnCP1/holed 7fHrfufb9AcfEe2Pxk6yJYPtWcwnQXEjvdVNlYAqpvHFgrmg6kVmd+W5fWCN+bwduS/k rAyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681930496; x=1684522496; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=A4+Y7zHI+zl4Rj7jO8AHbiYvQ8UrVkgtOSez+8rlDNY=; b=OdTaajib+tIxvvLkGKPIi1tLhsTPgd5xG4/7GZ1q7FGwEuCsZQZGvUQK0PS2PgAzly pQwUN7RWQ7Aq4QrEbUeOW4aOu/u2Zx9c0svnWQ+zRaTDv9ds5HUO3Y928ji3HIZysq4L WFOlQ/unIdN4YxIXqK8OhmzpQzYcWPY4h13jfrj34Lh79n7otapomTwFVTf1l2pVH5gM RMSTnhLXGxaRkmpUJKMJ+FPjJDLndR7VvHBK45gWFSFgJOS4XkJqbtnYGuHVFrbVsR8z AyJklMLcGU9WbLaFZ+bbgLeOFCxbZPGRbDHjm7WTBnk4aP9ue1+MKWYqVe4kKG8M0IGt 6M4w== X-Gm-Message-State: AAQBX9frwftLNUv/b+pe6Gqh5YDa1eT6j8JSWTRZ+WhBzEpis74RC8F0 vPZjIJ4P+y3A2rKFhyhr71Q= X-Google-Smtp-Source: AKy350aC+QFt4DdVJ/sKXeyXjl86Y+P0NiXArNM0dMhXoJN62f3Ya0DhDn8GYyt+rRRUCqKTsGD8Gw== X-Received: by 2002:adf:fe4c:0:b0:2d5:39d:514f with SMTP id m12-20020adffe4c000000b002d5039d514fmr5516355wrs.65.1681930496330; Wed, 19 Apr 2023 11:54:56 -0700 (PDT) Received: from localhost ([2a02:168:633b:1:9d6a:15a4:c7d1:a0f0]) by smtp.gmail.com with ESMTPSA id z18-20020adfd0d2000000b002da75c5e143sm16476755wrh.29.2023.04.19.11.54.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Apr 2023 11:54:56 -0700 (PDT) From: =?UTF-8?q?G=C3=BCnther=20Noack?= To: Alejandro Colomar , =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= Cc: linux-man@vger.kernel.org, =?UTF-8?q?G=C3=BCnther=20Noack?= Subject: [PATCH 4/4] landlock.7: Return instead of exit() if Landlock is unusable Date: Wed, 19 Apr 2023 20:54:43 +0200 Message-Id: <20230419185443.7368-5-gnoack3000@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230419185443.7368-1-gnoack3000@gmail.com> References: <20230419185443.7368-1-gnoack3000@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org When following a best effort approach, we should not fail when Landlock is unusable, but we should fall back to doing nothing. As discussed in https://lore.kernel.org/linux-man/5d90e3b0-1577-7efd-03b8-f94b6e50fbc1@digikod.net/ Signed-off-by: Günther Noack --- man7/landlock.7 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/man7/landlock.7 b/man7/landlock.7 index 7067c058c..b6c9d3821 100644 --- a/man7/landlock.7 +++ b/man7/landlock.7 @@ -451,7 +451,7 @@ if (abi == \-1) { * or Landlock was not enabled at boot time. */ perror("Unable to use Landlock"); - exit(EXIT_FAILURE); + return; /* Graceful fallback: Do nothing. */ } abi = MIN(abi, 3); -- 2.40.0