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Date:	Thu, 30 Dec 2010 04:10:51 +0100 (CET)
From:	"Kurt Franke" <Kurt-Franke AT web DOT de>
To:	cygwin AT cygwin DOT com
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Subject:	privilege problem with permanent virtual drives defined as DOS devices
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Hello,


a privilege problem occures with permanent virtual drives defined
as DOS devices.

$> uname -a
CYGWIN_NT-6.0 meow2 1.7.7(0.230/5/3) 2010-08-31 09:58 i686 Cygwin


when have defined dos devices to access a particular path as a 
permanent virtual drive in each session like the following example:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\DOS Devices]
"K:"="\\??\\C:\\\\oracle\\doc\\10.2\\doc"

no access is possible with a normal user or an admin user with a 
restricted token - only users with an elevated admin token can 
access it

if explicitly mounted a "No such file or directory" is issued when
trying to access the mount point via ls or df while not using an 
elevated admin token 

as normal user

$_%> df /k
df: `/k': No such file or directory
df: no file systems processed

as elevated admin

$_#> df /k
Filesystem           1K-blocks      Used Available Use% Mounted on
K:                   110687816  81352392  29335424  74% /k


if not explicitly mounted no cygdrive entry occures for such users 



this privilege problem didn't occure with version before 1.7

$> uname -a
CYGWIN_NT-6.0 meow2 1.5.24(0.156/4/2) 2007-01-31 10:57 i686 Cygwin



regards

kf

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