Re: generating a Linux WWN?

Jeff Garzik
2007-10-03T16:02:53Z

Michael Reed wrote:
>
> Jeff Garzik wrote:
>> Luben Tuikov wrote:
>>> Do you mean:
>>> "The admin will have the option to SPECIFY(SET) a WWN, should they
>>> so desire."
>>> OR do you mean:
>>> "The admin will have the option to HAVE THE KERNEL auto-generate a WWN,
>>> should they so desire."
>> Both. It is up to admin policy to decide if they wish to use the
>> available board's WWN (if present/valid), manually apportion WWNs, or
>> whether the kernel's generation algo is fine with them.
>
> Could the reassignment of a board's WWN present any security issues?
> A board which is allowed to access only some targets is now allowed to
> access others. I would assume that most sites that care about security
> would have other measures in place to guard against this, but it's still
> worth pondering.

Well, at that point the admin has made a conscious decision to deviate
from the norm, either for site-specific reasons or for
getting-his-hardware-working reasons. So we assume the admin who made a
proactive step in this direction knows what he is doing.

Just like the rest of Linux, we just give you the rope... :)

Jeff