Re: Re: Detecting Encrypted Files in a mounted Windows FS?

Yeah, I intend to set up the directories myself and they should all be encrypted. What I'd like to do is ensure that the file is encrypted and send mail to the user if it isn't.

--traveler

Comment on Re: Re: Detecting Encrypted Files in a mounted Windows FS?

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Re: Re: Re: Detecting Encrypted Files in a mounted Windows FS? by RMGir (Prior) on Aug 07, 2002 at 20:49 UTC
Interestingly, you can get this on Windows if you have ActivePerl installed, using the Win32::File module. The catch (apart from the fact that you'd like to do this from Linux) is that Win32::File doesn't seem to have a constant for "ENCRYPTED", but it does return the correct bit set... `grep FILE_ATTRIBUTE_ENCRYPTED \.h Include/WinNT.h:#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000` [download] And running GetAttributes on an encrypted file yields: `C:\>perl -MWin32::File -e"Win32::File::GetAttributes('README.TXT',$x); + printf qq(%X\n),$x;map {printf qq(%-10s %08X\n),$_,&{'Win32::File::'.$_}} qw +(ARCHIVE C OMPRESSED DIRECTORY HIDDEN NORMAL OFFLINE READONLY SYSTEM TEMPORARY)" 6021 ARCHIVE 00000020 COMPRESSED 00000800 DIRECTORY 00000010 HIDDEN 00000002 NORMAL 00000080 OFFLINE 00001000 READONLY 00000001 SYSTEM 00000004 TEMPORARY 00000100` [download] I realize that doesn't really help you from Linux, unless you set up an "isencrypted_d" service running on NT :) If you're curious, the 0x2000 bit is "FILE_ATTRIBUTE_NOT_CONTENT_INDEXED"... -- Mike	[reply] [d/l] [select]

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Re: Re: Re: Detecting Encrypted Files in a mounted Windows FS?
by RMGir (Prior) on Aug 07, 2002 at 20:49 UTC

The catch (apart from the fact that you'd like to do this from Linux) is that Win32::File doesn't seem to have a constant for "ENCRYPTED", but it does return the correct bit set...

grep FILE_ATTRIBUTE_ENCRYPTED *\*.h
Include/WinNT.h:#define FILE_ATTRIBUTE_ENCRYPTED            0x00004000
[download]

C:\>perl -MWin32::File -e"Win32::File::GetAttributes('README.TXT',$x);
+ printf
 qq(%X\n),$x;map {printf qq(%-10s %08X\n),$_,&{'Win32::File::'.$_}} qw
+(ARCHIVE C
OMPRESSED DIRECTORY HIDDEN NORMAL OFFLINE READONLY SYSTEM TEMPORARY)"
6021
ARCHIVE    00000020
COMPRESSED 00000800
DIRECTORY  00000010
HIDDEN     00000002
NORMAL     00000080
OFFLINE    00001000
READONLY   00000001
SYSTEM     00000004
TEMPORARY  00000100
[download]

If you're curious, the 0x2000 bit is "FILE_ATTRIBUTE_NOT_CONTENT_INDEXED"...
--
Mike

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