Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

ipfilter: Move userland bits to sbin

Through fixes and improvements our ipfilter sources have diverged
enough to warrant move from contrib into sbin/ipf. Now that I'm
planning on implementing MSS clamping as in iptables it makes more
sense to move ipfilter to sbin.

This is the second of three commits of the ipfilter move.

Suggested by glebius on two occaions.

Suggested by and discussed with: glebius
Reviewed by: glebius, kp (for #network)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33510

Disconnect ipftest and ipresend from the build until it can be verified
that they still work. These utilities have become out of sync with the
code in the kernel and need work to bring them back into shape.
Most people test on real systems or VMs on real networks.

Suggested by: glebius

Revert r315218 so that it may be committed together with r315219.

Disconnect ipftest and ipresend from the build until it can be verified
that they still work. These utilities have become out of sync with the
code in the kernel and need work to bring them back into shape.
Most people test on real systems or VMs on real networks.

Sugested by: glebius

Add SUBDIR_PARALLEL.

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division

Remove disconnected directories.

These were added disconnected in 2005 in r145524.

Sponsored by: EMC / Isilon Storage Division

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

create a new build heirarchy for ipfilter tools

Link a couple of missing manpages

Submitted by: Hideyuki KURASHINA <rushani@FreeBSD.org>
MFC after: 1 week

style.Makefile(5):
Use WARNS?= instead of WARNS=.

Move my maintainership of parts of ipfilter back to Darren Reed

* add extra -I path to get the "matching" header files.

Default to WARNS=2.
Binary builds that cannot handle this must explicitly set WARNS=0.

Reviewed by: mike

Pick up the correct headers from sys/contrib/ipfilter/netinet.

Backout previous change (removal of -I${.CURDIR}/../../sys/netinet).
This is needed to pick up the right headers. Wrong headers from
src/contrib/ipfilter are used otherwise.

The right fix would be to fix contrib/ipfilter C sources to pick up
headers from <sys/netinet>.

Noticed by: peter

Removed -I${.CURDIR}/.../sys from CFLAGS.

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Build with -DUSE_INET6 so that we can actually use the IPv6 support in
IPFilter 3.4.x.

Approved by: darrenr, guido

add common.c to SRCS to fix compile problems

Add MAINTAINER tag.

The Makefiles in sbin/{ipfstat,ipmon,ipnat} were repository copied
from the respective directories in usr.sbin

Revive userland stuff for ipfilter.
Also fixes:
PR: 7791

Nuke the old antique copy of ipfilter from the tree. This is old enough
to be dangerous. It will better serve us as a port building a KLD,
ala SKIP.

Initial bmake scaffolding for ipfilter userland stuff.

Obtained from: large chunks stolen from OpenBSD and NetBSD