From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 123417 invoked by alias); 15 Aug 2019 02:59:17 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 123408 invoked by uid 89); 15 Aug 2019 02:59:16 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-5.0 required=5.0 tests=AWL,BAYES_00,GIT_PATCH_2,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 spammy=deny, GROUP, authority X-HELO: smtp-out-no.shaw.ca Received: from smtp-out-no.shaw.ca (HELO smtp-out-no.shaw.ca) (64.59.134.13) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 15 Aug 2019 02:59:15 +0000 Received: from [192.168.1.114] ([24.64.172.44]) by shaw.ca with ESMTP id y5yqhcKORsAGky5yrhAX2n; Wed, 14 Aug 2019 20:59:13 -0600 Reply-To: Brian.Inglis@SystematicSw.ab.ca Subject: Re: SMBFS mount's file cannot be made executable To: cygwin@cygwin.com References: From: Brian Inglis Openpgp: preference=signencrypt Message-ID: <98680ad1-fac9-123e-35c4-c55b7139f75f@SystematicSw.ab.ca> Date: Thu, 15 Aug 2019 02:59:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2019-08/txt/msg00192.txt.bz2 On 2019-08-14 19:40, Lavrentiev, Anton (NIH/NLM/NCBI) [C] via cygwin wrote: >> You can often figure permissions problems > I already figured where the problem was, in how cygwin convers (or, actually > doesn't) the UNIX's "x" bit into the native DAC for the underlying filesystem > (to store as, again, "x" in the Linux share). > Missing that DACL, SMBD returns "Access denied" for an attempt to execute the > .exe file.> > I don't think that any of the requested output is of any help or indication, > rather than to actually show that the execute permission is missing. > > $ /usr/lib/csih/getVolInfo /cygdrive/z > Device Type : 7 > Characteristics : 10 > Volume Name : > Serial Number : 3112497429 > Max Filenamelength : 255 > Filesystemname : > Flags : 1006f > FILE_CASE_SENSITIVE_SEARCH : TRUE > FILE_CASE_PRESERVED_NAMES : TRUE > FILE_UNICODE_ON_DISK : TRUE > FILE_PERSISTENT_ACLS : TRUE > FILE_FILE_COMPRESSION : FALSE > FILE_VOLUME_QUOTAS : TRUE > FILE_SUPPORTS_SPARSE_FILES : TRUE > FILE_SUPPORTS_REPARSE_POINTS: FALSE > FILE_SUPPORTS_REMOTE_STORAGE: FALSE > FILE_VOLUME_IS_COMPRESSED : FALSE > FILE_SUPPORTS_OBJECT_IDS : TRUE > FILE_SUPPORTS_ENCRYPTION : FALSE > FILE_NAMED_STREAMS : FALSE > FILE_READ_ONLY_VOLUME : FALSE > FILE_SEQUENTIAL_WRITE_ONCE : FALSE > FILE_SUPPORTS_TRANSACTIONS : FALSE > > $ pwd > /cygdrive/z > > $ gcc hello.c > > $ /usr/lib/csih/getVolInfo /cygdrive/z/a.exe > Device Type : 7 > Characteristics : 10 > Volume Name : > Serial Number : 3112497429 > Max Filenamelength : 255 > Filesystemname : > Flags : 1006f > FILE_CASE_SENSITIVE_SEARCH : TRUE > FILE_CASE_PRESERVED_NAMES : TRUE > FILE_UNICODE_ON_DISK : TRUE > FILE_PERSISTENT_ACLS : TRUE > FILE_FILE_COMPRESSION : FALSE > FILE_VOLUME_QUOTAS : TRUE > FILE_SUPPORTS_SPARSE_FILES : TRUE > FILE_SUPPORTS_REPARSE_POINTS: FALSE > FILE_SUPPORTS_REMOTE_STORAGE: FALSE > FILE_VOLUME_IS_COMPRESSED : FALSE > FILE_SUPPORTS_OBJECT_IDS : TRUE > FILE_SUPPORTS_ENCRYPTION : FALSE > FILE_NAMED_STREAMS : FALSE > FILE_READ_ONLY_VOLUME : FALSE > FILE_SEQUENTIAL_WRITE_ONCE : FALSE > FILE_SUPPORTS_TRANSACTIONS : FALSE > > $ ls -dl /cygdrive/z/a.exe > -rw-rw-r--+ 1 lavr cppcore 157753 Aug 14 21:30 /cygdrive/z/a.exe > > $ getfacl /cygdrive/z/a.exe > # file: /cygdrive/z/a.exe > # owner: lavr > # group: cppcore > user::rw- > user:lavr:rw- > group::r-- > group:cppcore:r-- > mask::rw- > other::r-- > > $ icacls `cygpath -w /cygdrive/z/a.exe` > Z:\a.exe S-1-22-1-4640:(R,W) > S-1-22-2-5333:(R) > S-1-22-2-5333:(R) > S-1-22-1-4640:(R,W) > Everyone:(R) > > Successfully processed 1 files; Failed processing 0 files Prerequisite for +x is DACL and masks allowing +x on normal file system directories and executables, as Cyggwin is emulating POSIX D/ACLs using Windows D/ACLs: drwxrwxr-x+ 1 SYSTEM SYSTEM 0 Aug 14 18:40 . # file: . # owner: SYSTEM # group: SYSTEM user::rwx user:$USER:rwx group::r-x group:Administrators:rwx group:$GROUP:r-x mask::rwx other::r-x default:user::rwx default:user:$USER:rwx default:group::--- default:group:Administrators:rwx default:mask::rwx default:other::r-x . NULL SID:(DENY)(Rc,S,REA,WEA,X,DC) NT AUTHORITY\SYSTEM:(F) $HOSTNAME\$USER:(RX,W,DC) NT AUTHORITY\SYSTEM:(RX) BUILTIN\Administrators:(RX,W,DC) BUILTIN\$GROUP:(RX) Everyone:(RX) NULL SID:(OI)(CI)(IO)(DENY)(Rc,S,REA,WEA,X,DC) CREATOR OWNER:(OI)(CI)(IO)(F) $HOSTNAME\$USER:(OI)(CI)(IO)(RX,W,DC) CREATOR GROUP:(OI)(CI)(IO)(Rc,S,RA) BUILTIN\Administrators:(OI)(CI)(IO)(RX,W,DC) CREATOR GROUP:(OI)(CI)(IO)(DENY)(S,RD,REA,X) Everyone:(OI)(CI)(IO)(RX) Successfully processed 1 files; Failed processing 0 files -rwxr-xr-x+ 1 $USER $GROUP 158443 Aug 3 2018 test.exe # file: test.exe # owner: $USER # group: $GROUP user::rwx group::r-x group:SYSTEM:rwx #effective:r-x group:Administrators:rwx #effective:r-x mask::r-x other::r-x test.exe NULL SID:(DENY)(Rc,S,REA,X,DC) $HOSTNAME\$USER:(F) BUILTIN\$GROUP:(RX) NT AUTHORITY\SYSTEM:(RX,W) BUILTIN\Administrators:(RX,W) Everyone:(RX) Successfully processed 1 files; Failed processing 0 files -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple