[Samba] Meaning of user.DOSATTRIB

[Mark Foley]

OK, thanks, I've seen such an attribute correlation list elsewhere. So what does
the 65 character string mean?

user.DOSATTRIB=0sMHgyMAAAAwADAAAAEQAAACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPnD7jBHStABAAAAAAAAAAA=

Obviously this isn't a bunch of 0x1's and 0x2s bit fields (or are they?). 

These attributes are from a file on the Redirected Folders directory hosted on
the Samba4 AD/DC. I believe the attributes are created by the Windows client
when files are created/modified (though I'm not sure about that). On the other
hand, I've only come across the bit-field documentation on the web, so maybe
these series of letters are a Samba thing.

What I'm looking to do is understand what they mean, if anything.

btw - the files for this user seem to have mostly the same attribute value
character sequence except it changes way down at the end where in this example
you have "PnD7jBHStAB". Don't know if that's meaningful.

Note also that doing getfattr from Linux on files from a mounted Windows C:
drive I get nothing at all, even on %USERNAME%\Application Data, which I would
think should have either 0x2 or 0x4.  So maybe these Redirected Folder file
DOSATTRIBs are a Samba thing?

--Mark

-----Original Message-----
> From: "L.P.H. van Belle" <belle at bazuin.nl>
> To: "samba at lists.samba.org" <samba at lists.samba.org>
> Date: Wed, 26 Aug 2015 09:07:06 +0200
> Subject: Re: [Samba] Meaning of user.DOSATTRIB
>
> Hai, 
>
> This is al about samba ea ( extended attibutes ) support. 
>
> Samba can map attibutes in two ways:
> Mapping DOS file attributes to UNIX permissions
> Storing the DOS attributes in extended file attributes
>
> The user.DOSATTRIB extended attribute contains a bit field indicating the state of each DOS attribute:
> Read-Only = 0x1
> Hidden    = 0x2
> System    = 0x4
> Archive   = 0x20
>
> and in smb.conf related (below is enableing ea support) 
> ea support = yes
> map hidden = no
> map system = no
> map archive = no
> map readonly = no
> store dos attributes = yes
>
> and if you use mac osx also, 
> also add. 
> vfs objects = streams_xattr
> oplocks = no
>
> and you can do something like: 
> setfattr -n user.DOSATTRIB -v '"0x6"' desktop.ini
> Note the escaping of the quotes in the value; 
> This is needed to force the extended attribute to contain a string instead of an integer.
>
> (0x6 = hidden  + System ) 
>
> and correct me if im wrong here. 
>
>
> Greetz, 
>
> Louis
>
>
> >-----Oorspronkelijk bericht-----
> >Van: samba [mailto:samba-bounces at lists.samba.org] Namens Mark Foley
> >Verzonden: woensdag 26 augustus 2015 07:55
> >Aan: samba at lists.samba.org
> >Onderwerp: [Samba] Meaning of user.DOSATTRIB
> >
> >I have the following attributes for a typical file on my 
> >redirected folders
> >residing on my Samba4 AD/DC:
> >
> >$ getfattr -d "Newletters/Newsletter 2013-09.docx"
> ># file: Newletters/Newsletter 2013-09.docx
> >user.DOSATTRIB=0sMHgyMAAAAwADAAAAEQAAACAAAAAAAAAAAAAAAAAAAAAAAA
> >AAAAAAAPnD7jBHStABAAAAAAAAAAA=
> >
> >What do these characters mean? I'm searching for a particular 
> >attribute. I have
> >found nothing searching the web or samba wiki.
> >
> >(btw - I see that Marco De Vitis asked a similar question on 
> >the list back in
> >2007, but I've seen no response.)
> >
> >--Mark
> >
> >-- 
> >To unsubscribe from this list go to the following URL and read the
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> >
> >
>
>
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