DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 50ANNpae1667290 Authentication-Results: delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com Authentication-Results: delorie.com; spf=pass smtp.mailfrom=cygwin.com DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 50ANNpae1667290 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=LJMOe9Z3 X-Recipient: archive-cygwin AT delorie DOT com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C4A99385828B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1736551429; bh=7P6bS+XGPmv//xtPB9B2/NF2mJJdBLMiAUZWvRr3C58=; h=Date:Subject:To:References:In-Reply-To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=LJMOe9Z3J5j4lrShVdj9/0edtTANXaJnuwP/1QYW2eB56zDqhuFpbRDVsddfUYamS 0f+wP1mH8Z9ejzmlsjIuLbo+YzWz06qg8y2tV9re7jMpIoGgjxy7YLmvbto3I0QhdE hZ0C/XThNz/4jB9C9qGYwk15V6UCbQDBtpF7eNhk= X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 65F88385843B ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 65F88385843B ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1736551384; cv=none; b=dh13ErQ2Fko7InLaNpozq+K7NjTql3jV59UJ/aQ2gvH+5YQ692xNzD9PbUIaoKFWdnoII3e+IPbyLeExtsq/vW6PzSVUr7Ob89y8E3deDpy5hkF6grnrqO68Jlvv5U8494Rd5B+h+IKY6WlxFChQciDDdkDA0ivMEFFK2kIGOrk= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1736551384; c=relaxed/simple; bh=oBQUk9DJlZZlLV96q2+i/unco+24Qon3pUWPKXtrGvE=; h=Message-ID:Date:MIME-Version:From:Subject:To:DKIM-Signature; b=Vd4r/lZ0iUN4p3dNcNTrtMi56TZw7vsUMROpdW0/PO2G91JH7y9oVGM8PVwNKvBt/ynIJYnLSeXaxjDu2oqVGiTyoTqfYHNdCiPuFkb464loXzz0FxgDfJE1OLuvGEZlAsCeSTL3/J3PwUYJiFRgvYmW7jcATirdAPjfeftlbqY= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 65F88385843B Message-ID: Date: Fri, 10 Jan 2025 16:23:01 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Using forwarded filesystems with Windows Remote Client (e.g. accessing //TSCLIENT/L via mstsc.exe) ? Content-Language: en-CA To: cygwin AT cygwin DOT com References:

Organization: Systematic Software In-Reply-To: X-Rspamd-Queue-Id: 7B8652000D X-Rspamd-Server: rspamout05 X-Stat-Signature: 7yf3xo7zc3zqcpdcoy55o78oqpkyn3xe X-Session-Marker: 427269616E2E496E676C69734053797374656D6174696353572E61622E6361 X-Session-ID: U2FsdGVkX19NWhYMLzmktQSsCee8Bajsr7d/oVQmaWM= X-HE-Tag: 1736551382-803785 X-HE-Meta: U2FsdGVkX19seVJcL6WfWD5W7DbrGUJSQKtwT+37I2zFbRUtrEJHgWPp7bOMn3DtJPLQWNGlFhthZSCPsC5y+3dVPjgyciTdTQGIGNtImtgGlzoZVx/sa3I+7Zc+O7u5lmQhXgjpVv0ErBckFN6Kl3LWj1Yjn/652hrqPGfjiiRPLrkNjSP/WEo++uAnUTY6lLHE/wjIjIiRVS5Ias3aptt1qyt2IRNpIknR2ANBAjT5Q2Rwei70mpali1KXr/NMGpw43t6z5BuRhyUfqZwGaAwjkVJsgFBeXMQBYuxbMqithYCyGZSLOK5kg3RJaoCUMoF9NiPlG5G1F28Jdxkjsh3a4tHKAyJauMmDNmWL7HiSLRlLBt8F007IVkwGpSSCOYqN8WcXuvQ84JM5p33lUQ== X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.30 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Brian Inglis via Cygwin Reply-To: cygwin AT cygwin DOT com Cc: Brian Inglis Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 50ANNpae1667290 On 2025-01-09 08:18, Roland Mainz via Cygwin wrote: > On Wed, Jan 8, 2025 at 5:33 PM Roland Mainz wrote: >> >> Hi! >> >> ---- >> >> Does Cygwin 3.6 support filesystems which have been forwarded by the >> Windows Remote Client (mstsc.exe) ? >> >> I tried to access such a forwarded dir, but $ ls -l # returned this: >> ---- snip ---- >> $ bash -c 'cd //TSCLIENT/L && ls -l' >> ls: cannot read symbolic link 'newtestmachine_dir2': Invalid argument >> ls: cannot read symbolic link 'winserver2019_admindir2': Invalid argument >> total 665207504417527 >> ?--xr--r-x 0 Unix_User+2 Unix_Group+1252 >> 8589934592 Jan 1 1970 builds >> ?--xr--r-x 65535 Unix_User+0 Unix_Group+6539296 >> 8589934592 Jan 1 1970 download >> ?--xr--r-x 65535 Unix_User+0 Unix_Group+6539296 >> 8589934592 Jan 1 1970 gitbundles >> ?--xr--r-x 65535 Unix_User+0 Unix_Group+6539296 >> 8589934592 Jan 1 1970 newtestmachine1 >> l-----xr-x 13 Unix_User+6539088 Unix_Group+6539672 >> 4294967295 Jan 1 1970 newtestmachine_dir2 >> ?-ws-wS--t 65535 Unix_User+0 Unix_Group+6539296 >> 4294967296000 Jan 1 1970 newtestmachine_dir3 >> ?--xr--r-x 65535 Unix_User+0 Unix_Group+6539296 >> 8589934592 Jan 1 1970 rde >> ?--xr--r-x 65535 Unix_User+0 Unix_Group+6539296 >> 8589934592 Jan 1 1970 rde.zip >> ?-ws-wS--t 65535 Unix_User+0 Unix_Group+6539296 >> 4294967296000 Mar 17 1970 te_install >> l-----x-wx 11 Unix_User+6539088 Unix_Group+6539672 >> 4294967295 Jan 1 1970 winserver2019_admindir2 >> ---- snip ---- >> >> Any idea what is going wrong in this case ? > > Short update: > On the machine which got the forwarded filesystems I get this: > ---- snip ---- > $ nfs_ea '\??\UNC\TSCLIENT\T\test1' getnfs3attr > Querying extended attribute 'NfsV3Attributes' on file > '\??\UNC\TSCLIENT\T\test1': > ZwQueryEaFile('"') failed with 0xc0000002 > ---- snip ---- > > 0xC0000002 == STATUS_NOT_IMPLEMENTED > > The Windows NFSv3 and NFSv4.1/NFSv.2 drivers implement support for > "NfsV3Attributes", so it seems filesystem forwarding in RDP does not > support EAs (=extended attributes). > Powershell itself can handle files&&cd etc., it seems only > applications which rely on "NfsV3Attributes" are affected... > > ... maybe in Cygwin there are places where the return code for > |nfs_fetch_fattr3()| isn't checked ? Run a Cygwin program under Cygwin strace and redirect the output to prog.strace which is a time stamped text log of Cygwin internal and Windows "system calls". -- Take care. Thanks, Brian Inglis Calgary, Alberta, Canada La perfection est atteinte Perfection is achieved non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut -- Antoine de Saint-Exupéry -- 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