From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.autonomia.digital (mail.autonomia.digital [185.108.76.28]) by sourceware.org (Postfix) with ESMTPS id 10C5B385781B for ; Tue, 25 May 2021 16:44:28 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 10C5B385781B Received: (qmail 42385 invoked by uid 0); 25 May 2021 16:44:26 -0000 Received: from corp-190-12-7-98.uio.puntonet.ec (HELO ?172.16.88.134?) (sandy@autonomia.digital@190.12.7.98) by mail.autonomia.digital with ESMTPS (ECDHE-RSA-AES128-GCM-SHA256 encrypted); 25 May 2021 16:44:26 -0000 From: Sandy To: cygwin@cygwin.com Cc: pedro Subject: How to disable the default bypass of the ACL permissions checking in Cygwin Message-ID: <172f7dc5-87fd-e008-15d6-0ffd0af29323@autonomia.digital> Date: Tue, 25 May 2021 11:44:21 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-US X-Spam-Status: No, score=0.6 required=5.0 tests=BAYES_50, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 May 2021 16:44:31 -0000 Hi there, We are from the NGO Centro de Autonomia Digital (CAD) based in Quito, Ecuador. We have been using Msys2 to test our project Coyim (http://github.com/coyim/coyim) in Windows environments. The tests are currently running on GitHub Actions, using the Windows Server 2019 Datacenter. We have one specific test case that is failing because of interesting behavior in Msys2. The full description of the issue is available at the following link: https://github.com/msys2/msys2-runtime/issues/45 Thanks to the help of one of the Msys2 developers, we found that Cygwin bypasses the checking of the Windows ACL permissions when it runs with administrative privileges. We would like to know if it is possible to change this behavior of Cygwin or at least have his point of view of how we could control the permissions even in this scenario. Thank you very much for your help on this, and thanks to all the team behind the amazing Cygwin product. Cheers.