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Date: Fri, 8 Jan 2010 11:58:00 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Oddity when working with webdrive mounted network drives
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On Jan  7 16:23, Robert Pendell wrote:
> When opening a webdrive mounted network drive it shows all the user
> and groups with question marks (?) and full rw.  Looks like it is
> emulating FAT/FAT32 here but I wanted to be sure.

No, it isn't.  See below.

> The uid and gid are
> obviously wrong here but that is the numeric uid and gid that it
> gives.  Beyond that there are no issues.
> 
> The host system is Debian but it is not being done through Samba or
> NFS.  Webdrive is mounting through sshfs.
> 
> $ /usr/lib/csih/getVolInfo /cygdrive/w
> Device Type        : 7
> Characteristics    : 10
> Volume Name        : <shinji257 AT dreamhost>
> Serial Number      : 71466
> Max Filenamelength : 256
> Filesystemname     : <WebDrive>
> Flags              : f
>   FILE_CASE_SENSITIVE_SEARCH  : TRUE
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    That *should* allow case-sensitivity according to
    http://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-casesensitive

>   FILE_CASE_PRESERVED_NAMES   : TRUE
>   FILE_UNICODE_ON_DISK        : TRUE
>   FILE_PERSISTENT_ACLS        : TRUE
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    And that means that ACLs are available, so the default is to use them.

> $ ls -n /cygdrive/w
> total 44M
> drwxrwxrwx 1 4294967295 4294967295 4.0K 2009-11-04 03:20 Maildir/
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  And that means the SIDs of owner and group are not known to Cygwin,
  since they are not present in /etc/passwd and /etc/group.  The permissions
  are taken from what the OS call to fetch the ACL returns.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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