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Date: Wed, 09 Jun 2004 17:36:02 -0700
From: Kris Kennaway <kris@obsecurity.org>
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To: Julian Elischer <julian@elischer.org>
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cc: FreeBSD current users <current@FreeBSD.ORG>
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Subject: Re: HEADSUP! netgraph Metadata changing.
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Julian Elischer wrote:
> If you don't know or care about netgraph metadata (e.g. packet priority)
> then this shouldn't worry you.
> 
> We are changing the netgraph metadata facility (in which arbitrary
> metadata can be sent with a packet through processing) to use
> the mbuf TAG facility that has been imported by sam.
> 
> Netgraph tags will use different cookies to the standard set of 
> tags imported with the code, so they will live in a separate namespace,
> however they will be handled during GC and manipulation by the standard
> tag handling code (Thanks to Sam for giving us the cookie facility).
> 
> In the checked in code there are only a couple of users of metadata, but
> there may be 3rd parties out there that use it. If so the authors should
> contact me as soon as possible to co-ordinate the changeover.

Don't forget to bump __FreeBSD_version when you make this change.

Kris