Tool to access ZFS/NFSv4 alternate data streams on FreeBSD?

[Simon Toedt]

On Fri, Sep 12, 2014 at 2:24 AM, Lionel Cons <lionelcons1972 at gmail.com> wrote:
> On 9 September 2014 23:29, Rick Macklem <rmacklem at uoguelph.ca> wrote:
>> Simon Toedt wrote:
>>> On Tue, Sep 9, 2014 at 1:47 PM, Rick Macklem <rmacklem at uoguelph.ca>
>>> wrote:
>>> > Jordan Hubbard wrote:
>>> >> Yep.  I was just describing the experience that OS X went through
>>> >> in
>>> >> implementing extattrs / legacy resource fork support.  To recap it
>>> >> very briefly:  Having NFSv4 support extattrs (or even named
>>> >> streams,
>>> >> if you want to go that far) is the comparatively easy part.  It’s
>>> >> backing them up / copying them around that gets more involved, and
>>> >> if you can’t back up certain attributes then you’re not likely to
>>> >> get anyone to want to use them, at which point the whole “sharing”
>>> >> aspect kind of takes a back seat.
>>> >>
>>> > Yep. I strongly suspect you are correct.
>>> >
>>> > The question then becomes:
>>> > - Do we wait and see if someone chooses to get around to doing all
>>> >   the hard userland work.
>>>
>>> Solaris tools already have support for this. Also AT&T AST from David
>>> Korn have support for O_XATTR, too.
>>>
>> Hopefully others will correct me if I have this incorrect, but I thought
>> CDDL code could only be used for optional components of FreeBSD?
>> I suspect tar and friends are considered core components and that code
>> for this would have to be written by someone (ie. couldn't use CDDL code?).
>> (I'm assuming that these tools are in OpenSolaris.)
>
> I don't think you FreeBSD should *copy* the code. But it can be used
> for reference how the extended tar headers for filesystem forks should
> look like. That's all.
>
>>
>> Be aware that most of FreeBSD's development is done by volunteers in their
>> spare time, so I have no idea if someone is interested in doing this.
>
> If anyone can get the kernel parts I think we can sponsor someone to
> do the userland work.

How much money would CERN offer? :)

Simon