Messages in this thread | | | Date | Thu, 1 Jul 2004 11:55:55 -0700 | From | John Sage <> | Subject | Re: Parentage of BPF code in Linux |
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Matt:
On Thu, Jul 01, 2004 at 01:43:55PM -0500, Matt Mackall wrote: > Date: Thu, 1 Jul 2004 13:43:55 -0500 > From: Matt Mackall <mpm@selenic.com> > To: John Sage <jsage@finchhaven.com> > Cc: linux-kernel@vger.kernel.org, netdev@oss.sgi.com > Subject: Re: Parentage of BPF code in Linux > User-Agent: Mutt/1.3.28i > > On Thu, Jul 01, 2004 at 11:10:02AM -0700, John Sage wrote: > > [Non-subscriber: please cc on replies] > > > > WRT to the SCO/IBM/Linux imbroglio, there was an interesting > > assertion made on the Yahoo! Finance message board for SCOX, and I > > wondered if anyone could shed some light. > > > > The assertion is this: > > > > "...among other things, the Berkeley Packet Filter code, which was > > written by an independent developer for the Missouri School > > District, licensed under the BSD license terms that never was part > > of SysV at any time..." > > There's a from-scratch reimplementation of BPF in Linux (called > Linux Socket Filter) by Jay Schulist in net/core/filter.c. And he > appears to have worked for the _Wisconsin_ school district at the > time. A Google search on "schulist filter wisconsin" reveals: > > Jay Schulist, a senior software engineer with Pleasanton, > California's Bivio Networks says he wrote the 500 lines of code in > 1997 as part of a volunteer project for the Stevens Point Area > Catholic Schools in Wisconsin. "I used it for helping a local > school district in my home town to connect their old Apple > Macintosh machines to the Internet," he said.
Interesting.
Thank you.
And there it is:
/* * Linux Socket Filter - Kernel level socket filtering * * Author: * Jay Schulist <jschlst@samba.org> * * Based on the design of: * - The Berkeley Packet Filter
/* snip */
The only other reference I've been able to find to this "Missouri School District/BPF" meme was in a post to a ZDNet message board back in November, 2003...
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