Re: RFC3927 ARP patch status?

[Anand Kumria <wildfire@progsoc.uts.edu.au>]

On Fri, Jun 02, 2006 at 05:58:27PM -0700, David Daney wrote:
> Anand Kumria wrote:
> >Herbert,
> >
> >On Sat, Jun 03, 2006 at 09:12:06AM +1000, Herbert Xu wrote:
> >
> >>David Daney <ddaney@avtrex.com> wrote:
> >>
> >>>There were some discussions about whether it made sense for the kernel 
> >>>to support the behavior required by the RFC.  Other comments debated the 
> >>>wisdom of using a tightly targeted patch specific to the RFC, or whether 
> >>>a more general but intrusive solution would be better.
> >>
> >>I think we've made it quite clear what needs to be done for it to be
> >>accepted.  All that remains is for someone to implement it.  If anyone
> >>really cares about this, then please write the code instead of talking
> >>about it.
> >
> >
> >Okay, to confirm: you want a patch which looks at the scope value and if 
> >the scope is link-local then we broadcast rather than do a directed ARP?
> >
> 
> I don't think that was the plan.  In an earlier e-mail Herbert Xu said 
> (and I concur):
> 
> ------------------------------
> I like the idea of allowing user-space to control what addresses cause
> broadcasts.  However, I'm uncomfortable with overloading existing flags
> even though they might appear to fit the bill on the face of it.
> 

[...]

Sorry, I can't find any email with any of those words in it by Herbert.
Could you tell me the message-id, so I can read some of the surrounding
context?

> 
> The idea was to add a new flag, *not* reuse the scope value.
> 

I guess it would be something set during RTM_NEWADDR (and returned by
RTM_GETADDR?). How does IFA_DIRECTEDARP sound? With a value type of int;
defaulting to 1.  When set to 0, generate a broadcast ARP for the
address.

Thanks,
Anand

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