Re: Alternate Data Streams

Re: Alternate Data Streams

[Richard Sharpe]

On 4/2/12, Steve French <smfrench@gmail.com> wrote:
> A user was asking about how to query alternate data streams of files
> (over cifs) remotely for backup.
>
> Alternate Data Streams can be read from cifs (e.g.
> /path/filename:streamname) but not listed or created.   Any thoughts
> about whether this (at least listing the streams) should be done via
> an ioctl, xattr or ...?

Well, FindFirstStreamW and FindNextStreamW seem to available from
W2K03 on. There is a code project out there that you can search on. I
hit it as the first link returned when I searched for "Enumerating
Alternate Data Streams"

> How does NTFS-fuse handle this?
>
> --
> Thanks,
>
> Steve
> --
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>


-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)
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Re: Alternate Data Streams

[Jeremy Allison]

On Mon, Apr 02, 2012 at 10:21:31AM -0700, Richard Sharpe wrote:
> On 4/2/12, Steve French <smfrench-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > A user was asking about how to query alternate data streams of files
> > (over cifs) remotely for backup.
> >
> > Alternate Data Streams can be read from cifs (e.g.
> > /path/filename:streamname) but not listed or created.   Any thoughts
> > about whether this (at least listing the streams) should be done via
> > an ioctl, xattr or ...?
> 
> Well, FindFirstStreamW and FindNextStreamW seem to available from
> W2K03 on. There is a code project out there that you can search on. I
> hit it as the first link returned when I searched for "Enumerating
> Alternate Data Streams"

Remember Alternate Data Streams are dead from ReFS-onwards (thank
god :-).

Re: Alternate Data Streams

[Richard Sharpe]

On 4/2/12, Jeremy Allison <jra-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org> wrote:
> On Mon, Apr 02, 2012 at 10:21:31AM -0700, Richard Sharpe wrote:
>> On 4/2/12, Steve French <smfrench-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> > A user was asking about how to query alternate data streams of files
>> > (over cifs) remotely for backup.
>> >
>> > Alternate Data Streams can be read from cifs (e.g.
>> > /path/filename:streamname) but not listed or created.   Any thoughts
>> > about whether this (at least listing the streams) should be done via
>> > an ioctl, xattr or ...?
>>
>> Well, FindFirstStreamW and FindNextStreamW seem to available from
>> W2K03 on. There is a code project out there that you can search on. I
>> hit it as the first link returned when I searched for "Enumerating
>> Alternate Data Streams"
>
> Remember Alternate Data Streams are dead from ReFS-onwards (thank
> god :-).

A very useful piece of info.

There seems to be an additional way to query for them however.

     http://www.flexhex.com/doc/articles/alternat-streams.phtml

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)

Re: Alternate Data Streams

[simo]

On Mon, 2012-04-02 at 10:26 -0700, Richard Sharpe wrote: 
> On 4/2/12, Jeremy Allison <jra@samba.org> wrote:
> > On Mon, Apr 02, 2012 at 10:21:31AM -0700, Richard Sharpe wrote:
> >> On 4/2/12, Steve French <smfrench@gmail.com> wrote:
> >> > A user was asking about how to query alternate data streams of files
> >> > (over cifs) remotely for backup.
> >> >
> >> > Alternate Data Streams can be read from cifs (e.g.
> >> > /path/filename:streamname) but not listed or created.   Any thoughts
> >> > about whether this (at least listing the streams) should be done via
> >> > an ioctl, xattr or ...?
> >>
> >> Well, FindFirstStreamW and FindNextStreamW seem to available from
> >> W2K03 on. There is a code project out there that you can search on. I
> >> hit it as the first link returned when I searched for "Enumerating
> >> Alternate Data Streams"
> >
> > Remember Alternate Data Streams are dead from ReFS-onwards (thank
> > god :-).
> 
> A very useful piece of info.
> 
> There seems to be an additional way to query for them however.
> 
>      http://www.flexhex.com/doc/articles/alternat-streams.phtml

I get a page not found for this link.

Simo.

-- 
Simo Sorce
Samba Team GPL Compliance Officer <simo@samba.org>
Principal Software Engineer at Red Hat, Inc. <simo@redhat.com>

Re: Alternate Data Streams

[Richard Sharpe]

On 4/2/12, simo <idra-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org> wrote:
> On Mon, 2012-04-02 at 10:26 -0700, Richard Sharpe wrote:
>> On 4/2/12, Jeremy Allison <jra-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org> wrote:
>> > On Mon, Apr 02, 2012 at 10:21:31AM -0700, Richard Sharpe wrote:
>> >> On 4/2/12, Steve French <smfrench-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> >> > A user was asking about how to query alternate data streams of files
>> >> > (over cifs) remotely for backup.
>> >> >
>> >> > Alternate Data Streams can be read from cifs (e.g.
>> >> > /path/filename:streamname) but not listed or created.   Any thoughts
>> >> > about whether this (at least listing the streams) should be done via
>> >> > an ioctl, xattr or ...?
>> >>
>> >> Well, FindFirstStreamW and FindNextStreamW seem to available from
>> >> W2K03 on. There is a code project out there that you can search on. I
>> >> hit it as the first link returned when I searched for "Enumerating
>> >> Alternate Data Streams"
>> >
>> > Remember Alternate Data Streams are dead from ReFS-onwards (thank
>> > god :-).
>>
>> A very useful piece of info.
>>
>> There seems to be an additional way to query for them however.
>>
>>      http://www.flexhex.com/doc/articles/alternate-streams.phtml
>
> I get a page not found for this link.

Try now. I misspelled it ...

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)