Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

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

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

Spelling fixes for share/

Remove some comments about NetBSD. This in on FreeBSD and we do not
want to confuse people at the very beginning.
Sync TOC/paragraph numbers in the text.

Requested by: Benedikt Stockebrand during his talk at EuroBSDCon 2006
Reviewed by: gnn

sync with KAME regarding NDP

- introduced fine-grain-timer to manage ND-caches and IPv6 Multicast-Listeners
- supports Router-Preference <draft-ietf-ipv6-router-selection-07.txt>
- better prefix lifetime management
- more spec-comformant DAD advertisement
- updated RFC/internet-draft revisions

Obtained from: KAME
Reviewed by: ume, gnn
MFC after: 2 month

reflect scope change.

Obtained from: KAME

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

For variables that are only checked with defined(), don't provide
any fake value.

- refrect recent changes.
- add table of contents.
- add section 4.8 - Operations with IPsec tunnel mode.
- add section 9 - Policy on technology with intellectual property
right restriction
- more about KAME's codeing style.

Obtained from: KAME

- support AES counter mode for ESP.
- use size_t as return type of schedlen(), as there's no error
check needed.
- clear key schedule buffer before freeing.

Obtained from: KAME

- RIPEMD160 support
- pass size arg to ah->result (avoid assuming result buffer size)

Obtained from: KAME

Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.

FILES support for bsd.prog.mk. See bsd.README for details.

Stolen from: NetBSD

Sync with recent KAME.
This work was based on kame-20010528-freebsd43-snap.tgz and some
critical problem after the snap was out were fixed.
There are many many changes since last KAME merge.

TODO:
- The definitions of SADB_* in sys/net/pfkeyv2.h are still different
from RFC2407/IANA assignment because of binary compatibility
issue. It should be fixed under 5-CURRENT.
- ip6po_m member of struct ip6_pktopts is no longer used. But, it
is still there because of binary compatibility issue. It should
be removed under 5-CURRENT.

Reviewed by: itojun
Obtained from: KAME
MFC after: 3 weeks

sync with recent IMPLEMENTATION note from kame.

Add "IPv6" to SUBDIR, and also add the Makefile for IPv6 dir,
to make the file IMPLEMENTATION to be installed to /usr/share/doc/IPv6.

PR: docs/17120
Kindly Submitted by: phantom

Add IPv6 related docs.

Reviewed by: phantom