DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 46LL64IM2177860
Authentication-Results: delorie.com;
	dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=mB5pWdJx
X-Recipient: archive-cygwin AT delorie DOT com
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9CFB13858424
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1721595962;
	bh=z4ENuPMjbICBc92PdpdD5+oQZO9uEH13Mqqzd65J3H8=;
	h=Date:To:Subject:In-Reply-To:References:List-Id:List-Unsubscribe:
	 List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc:
	 From;
	b=mB5pWdJxaAndj40fairMJlNvSI98E2R4tIyTOxYt8M45eBNeAzFpLZeBX0z84YcCp
	 ypUOkgtDXaUub3wmAS66z1HMP/Rac7KJv6s4uvSnPMjKJ0MJH7N1EuVycGOfpYqvzn
	 /vbhrOeZYKWcP4lVHOCTXdxtduBJjccLDRzA+UII=
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 194053858D34
ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 194053858D34
ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1721595908; cv=none;
 b=wZHskd0hykrgDM3z3/fP5R61KzLGekJw42BUfFhEZ/tJECG8V4ypwuJWHXrNbk8coSpN6hCDOJsBhduSqEoM7eSRas9OzOs2D00cjfApxcStxSacjHTD2092dLO3PHxnMUlrJhqjTVtS8zmMWUn4XBTX41x76uiO+rYsShFdbTs=
ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key;
 t=1721595908; c=relaxed/simple;
 bh=WbL/zVKUL04C12+Isa6tDrE50M0KZhXQ4wX85BxKLsY=;
 h=DKIM-Signature:Date:From:Message-ID:To:Subject:MIME-Version;
 b=og9qKFjObBEffT6Y0yK/48FjZyMwMaGc6ZXnvxDASG4JTaD3qln2f6rzzjqAkj+tw6qECTfhZr1FqMkTBP36sYcBXOJZODjPN7Nfb1VNu/DYNI22pH7ZBVSZEIo/yxOBoQZKc1KFHNM6VBx13+pNpmbpaAlwdUz+GytFpdNGDXo=
ARC-Authentication-Results: i=1; server2.sourceware.org
X-Yandex-Fwd: 1
Date: Mon, 22 Jul 2024 00:01:02 +0300
X-Mailer: The Bat! (v9.3.4) Professional
Message-ID: <1158534520.20240722000102@yandex.ru>
To: ilya Basin <basinilya AT gmail DOT com>, cygwin AT cygwin DOT com
Subject: Re: noacl no longer effective under /cygdrive. Still works in other
 locations
In-Reply-To: <77920475-0ff2-4c1d-9331-39593c1cb46e@gmail.com>
References: <77920475-0ff2-4c1d-9331-39593c1cb46e AT gmail DOT com>
MIME-Version: 1.0
X-Spam-Status: No, score=-0.8 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, KAM_THEBAT,
 NICE_REPLY_A, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP,
 XM_LIGHT_HEAVY autolearn=no autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
 server2.sourceware.org
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.30
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Andrey Repin via Cygwin <cygwin AT cygwin DOT com>
Reply-To: cygwin AT cygwin DOT com
Cc: Andrey Repin <anrdaemon AT yandex DOT ru>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

Greetings, ilya Basin!

> For several years I had this in my /etc/fstab.d/$USER

>     C: /cygdrive/c none binary,noacl,posix=0,user 0 0

Unless you have a global /cygdrive override set to noacl as well, I have my
reservation about configuration.

> I switched from Cygwin x86 to x64 recently and I noticed that even if
> `mount` prints this:

>     $ mount | grep C:
>     C:/cygwin64/bin on /usr/bin type ntfs (binary,auto)
>     C:/cygwin64/lib on /usr/lib type ntfs (binary,auto)
>     C:/cygwin64 on / type ntfs (binary,auto)
>     C: on /cygdrive/c type ntfs (binary,noacl,posix=0,user)

> noacl seems to be ineffective:

>     basin AT basin /cygdrive/c/63/c
>     $ rm -f aaa bbb; touch aaa; cmd /c "echo.>bbb"

>     basin AT basin /cygdrive/c/63/c
>     $ cacls bbb
>     C:\63\c\bbb BUILTIN\:(ID)F
>                 NT AUTHORITY\:(ID)F
>                 BUILTIN\:(ID)R
>                 NT AUTHORITY\ :(ID)C

>     $ cacls aaa
>     C:\63\c\aaa NULL SID:(DENY)(special access:)
>                          READ_CONTROL
>                          FILE_WRITE_EA
>                          FILE_EXECUTE
>                          FILE_DELETE_CHILD
>     ...

> There's no suspicious $CYG* env var. I also tried to kill all cygwin
> processes and umount everything manually. I don't see what's wrong.

> Had to change the parent mount point to /cygnoacl in /etc/fstab.d/$USER and
> from there it works.

Just set /cygdrive to noacl. In my experience, this is a safer choice for
cross-system interaction.


-- 
With best regards,
Andrey Repin
Sunday, July 21, 2024 23:59:06

Sorry for my terrible english...


-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple