Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Fix mandoc warnings/errors.

MFC after: 1 week

Add example howto configure gre(4) tunnel with the same inner and
outer addresses using multiple FIBs.

X-MFC after: r282809

Misc mdoc fixes:

- Remove superfluous paragraph macros.
- Remove/fix empty or incorrect macros.
- Sort sections into conventional order.
- Terminate quoted strings properly.
- Remove EOL whitespace.

Overhaul if_gre(4).

Split it into two modules: if_gre(4) for GRE encapsulation and
if_me(4) for minimal encapsulation within IP.

gre(4) changes:
* convert to if_transmit;
* rework locking: protect access to softc with rmlock,
protect from concurrent ioctls with sx lock;
* correct interface accounting for outgoing datagramms (count only payload size);
* implement generic support for using IPv6 as delivery header;
* make implementation conform to the RFC 2784 and partially to RFC 2890;
* add support for GRE checksums - calculate for outgoing datagramms and check
for inconming datagramms;
* add support for sending sequence number in GRE header;
* remove support of cached routes. This fixes problem, when gre(4) doesn't
work at system startup. But this also removes support for having tunnels with
the same addresses for inner and outer header.
* deprecate support for various GREXXX ioctls, that doesn't used in FreeBSD.
Use our standard ioctls for tunnels.

me(4):
* implementation conform to RFC 2004;
* use if_transmit;
* use the same locking model as gre(4);

PR: 164475
Differential Revision: D1023
No objections from: net@
Relnotes: yes
Sponsored by: Yandex LLC

use .Mt to mark up email addresses consistently (final part)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

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.

mdoc: Avoid playing tricks with Ns: If Nm is present in the SYNOPSIS section,
it will be output on its own line. Ns cancels this effect however. This change
is also consistent with the rest of our manual pages.

Remove trailing whitespace per mdoc lint warning

Disussed with: gavin
No objection from: doc
Approved by: joel
MFC after: 3 days

Fix typos and spelling mistakes.

The NetBSD Foundation has granted permission to remove clause 3 and 4 from
their software.

Obtained from: NetBSD

Add support for the optional key in the GRE header.

PR: kern/114714
Submitted by: Cristian KLEIN

- convert to the current style of section 4 man pages
- s/ip.forwarding/net.inet.ip.forwarding/ to match reality [1]

Approved by: keramida (mentor), trhodes (mentor)
MFC after: 5 days
Submitted by: Tom McLaughlin via #bsddocs

s/ifconfig tunnel greN/ifconfig greN tunnel/

Submitted by: ankon@#bsddocs
Approved by: ceri@

Mechanically kill hard sentence breaks and double whitespaces.

Assorted markup, spelling, and grammar fixes.

Add support for WCCPv2. It should be enablem manually using link2
ifconfig(8) flag since header for version 2 is the same but IP payload
is prepended with additional 4-bytes field.

Inspired by: Roman Synyuk <roman@univ.kiev.ua>
MFC after: 2 weeks

mdoc(7) police: overhaul (including adoptation to FreeBSD).

Approved by: re

Add a new gre(4) driver, which could be used to create GRE (RFC1701)
and MOBILE (RFC2004) IP tunnels.

Obrained from: NetBSD