Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Remove IPX over IP tunneling support, which allows IPX routing over IP
tunnels, and was not MPSAFE. The code can be easily restored in the
event that someone with an IPX over IP tunnel configuration can work
with me to test patches.

This removes one of five remaining consumers of NET_NEEDS_GIANT.

Approved by: re (kensmith)

Use ANSI C function declarations throughout netipx.

Remove 'register' use.

Factor out UCB and my copyrights from copyrights of Mike Mitchell;
the former use a three-clause BSD license (per UCB authorization
letter), whereas he uses a four-clause BSD license.

MFC after: 3 days

Back out ipx.h:1.18, which introduced a Linux API compatibility field in
the ipx_net data structure. Doing so introduced a stronger alignment
requirement for the address structure, which in turn propagated into
other dependent data structures, which turns out not to be suported by
the available IPX source code. As a result, a number of user space
applications, such as IPX routing components, failed to operate
correctly.

RELENG_5_3 candidate?

PRs: 74059, 80266
Pointy hat to: bms
Fix by: bde
Tested by: Keith White <Keith dot White at site dot uottawa dot ca>
MFC after: 1 week
Suffering: great

/* -> /*- for license, minor formatting changes

Mark 'struct ipx', the IPX packet header, as __packed. Otherwise,
recent versions of gcc will insert an extra 16 bits of padding in
the structure, corrupting all IPX packet output.

MFC after: 3 days

Improve source-code compatibility with Linux applications using the
IPX stack.

PR: kern/65217
Submitted by: Radim Kolar

Remove __P.

FreeBSD/vax is quite some time away.

Get rid of the old XNS checksum code and implement it the IPX way.

PR: 13374
Submitted by: Boris Popov <bp@butya.kz>

$Id$ -> $FreeBSD$

Removed the #ifdef IPXERRORMSGS'ed code. Fix a lot of style errors that I
introduced with the previous commit.
Style fixes Submitted by: Bruce Evans <bde@FreeBSD.ORG>

Mega IPX commit.

Use the MAC address of an interface for the host part of an IPX address
and not the MAC address of the first interface for every IPX address.
This is more inline with the way others like Novell do it.
Mostly Submitted by: "Serge A. Babkin" <babkin@hq.icb.chel.su>

Take out the error messages (the ip icmp equivalent) with #ifdef IPXERRORMSGS.
This is bogus and as far as I could figure out IPX don't have anything like
it. This is a leftover from its XNS heritage. If nobody complains, I will
take it out completely in a few weeks.

Add some more ipxstat statistics counters.

Make ipxprintfs a sysctl variable and off by default.

Add IPX Netbios "routing" support. This is off by default and can be
switched on with a sysctl knob.

General code cleanup to at least use the same style throughout the IPX
code, but also be more style(9) conformant. Also make a lot of functions
static.

If I don't get any complaints I'll bring all of this over to the 2.2 tree
in a few weeks.

Make ipx compile again after the network interface changes.

Change IPX to use the pr_usrreqs structure.

Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Fix a bunch of spelling errors in the comment fields of
a bunch of system include files.

Uniformized pr_ctlinput protosw functions. The third arg is now `void
*' instead of caddr_t and it isn't optional (it never was). Most of the
netipx (and netns) pr_ctlinput functions abuse the second arg instead of
using the third arg but fixing this is beyond the scope of this round
of changes.

Cleaned up prototypes:
- don't #include other headers just to get struct names.
- don't use __BEGIN_DECLS/__END_DECLS for system prototypes. It is for
user prototypes.
- don't use extern.
- don't use lines longer than 80 columns.
- use alphabetical order.
- use tabs.

Uniformized idempotency ifdefs.

Suggested by: bde
clear up some confusion about Id: lines on behalf of the author

Submitted by: Mike Mitchell (mitchell@ref.tfs.com)

these patches bring the ipx code up to the point that it compiles cleanly with
the -W arguments suggested by bruce.

Submitted by: Mike Mitchell

revise prototypes etc.
cleanups (probably more coming)

Reviewed by: julian and jhay@mikom.csir.co.za
Submitted by: Mike Mitchell, supervisor@alb.asctmd.com

This is a bulk mport of Mike's IPX/SPX protocol stacks and all the
related gunf that goes with it..
it is not guaranteed to work 100% correctly at this time
but as we had several people trying to work on it
I figured it would be better to get it checked in so
they could all get teh same thing to work on..

Mikes been using it for a year or so
but on 2.0

more changes and stuff will be merged in from other developers now that this is in.

Mike Mitchell, Network Engineer
AMTECH Systems Corporation, Technology and Manufacturing
8600 Jefferson Street, Albuquerque, New Mexico 87113 (505) 856-8000
supervisor@alb.asctmd.com