sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

ng_iface(4): Remove unsupported protocols.

Update the ng_iface documentation and hooks to reflect the fact that the
node currently only supports IPv4 and v6 packets.

Reviewed by: Lutz Donnerhacke
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D25862

Use if_tunnel_check_nesting() for ng_iface(4).

Remove AppleTalk support.

AppleTalk was a network transport protocol for Apple Macintosh devices
in 80s and then 90s. Starting with Mac OS X in 2000 the AppleTalk was
a legacy protocol and primary networking protocol is TCP/IP. The last
Mac OS X release to support AppleTalk happened in 2009. The same year
routing equipment vendors (namely Cisco) end their support.

Thus, AppleTalk won't be supported in FreeBSD 11.0-RELEASE.

Remove IPX support.

IPX was a network transport protocol in Novell's NetWare network operating
system from late 80s and then 90s. The NetWare itself switched to TCP/IP
as default transport in 1998. Later, in this century the Novell Open
Enterprise Server became successor of Novell NetWare. The last release
that claimed to still support IPX was OES 2 in 2007. Routing equipment
vendors (e.g. Cisco) discontinued support for IPX in 2011.

Thus, IPX won't be supported in FreeBSD 11.0-RELEASE.

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

Check for infinite recursion possible on some broken PPTP/L2TP/... VPN setups.
Mark packets with mbuf_tag on first interface passage and drop on second.

PR: ports/129625, ports/125303,
MFC after: 2 weeks

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

Bump cookie value to reflect change in NGM_IFACE_GET_IFNAME semantics.

Parse "getifname" using the standard parse string type.

Fixed an off-by-one error when dealing with interface name
(if_xname is NUL-terminated).

Don't waste time making a copy of if_xname in constructor.

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

Implemented the "getifindex" control message.

PR: kern/63864
Submitted by: Gleb Smirnoff

Use a single style of multiple inclusion protection for Netgraph headers.

Reviewed by: archie, harti, emax

Finish driving a stake through the heart of netns and the associated
ifdefs scattered around the place - its dead Jim!

The SMB stuff had stolen AF_NS, make it official.

Since neither archie nor I work at Whistle any more, change our email
addresses to be the more usefu @freebsd.org ones
so we can keep getting bug-reports.
- man pages to follow..

Updates to the ng_iface(8) netgraph node type:
- Make iface nodes removable on shutdown since FreeBSD now supports
removable interfaces
- Simplify supporting new protocols using family_enqueue(); add a
few new ones including IPv6
- Add support for configurable interface mode using new
NGM_IFACE_POINT2POINT and NGM_IFACE_BROADCAST control messages
- Remove NGM_IFACE_GET_IFADDRS control message; it just duplicates
the functionality of SIOCGIFCONF

Whistle's Netgraph link-layer (sometimes more) networking infrastructure.
Been in production for 3 years now. Gives Instant Frame relay to if_sr
and if_ar drivers, and PPPOE support soon. See:
ftp://ftp.whistle.com/pub/archie/netgraph/index.html
for on-line manual pages.

Reviewed by: Doug Rabson (dfr@freebsd.org)
Obtained from: Whistle CVS tree