Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

mdoc: order prologue macros consistently by Dd/Dt/Os

Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by: ru
Approved by: philip, ed (mentors)

re-add accidentally deleted line

This main goals of this project are:
1. separating L2 tables (ARP, NDP) from the L3 routing tables
2. removing as much locking dependencies among these layers as
possible to allow for some parallelism in the search operations
3. simplify the logic in the routing code,

The most notable end result is the obsolescent of the route
cloning (RTF_CLONING) concept, which translated into code reduction
in both IPv4 ARP and IPv6 NDP related modules, and size reduction in
struct rtentry{}. The change in design obsoletes the semantics of
RTF_CLONING, RTF_WASCLONE and RTF_LLINFO routing flags. The userland
applications such as "arp" and "ndp" have been modified to reflect
those changes. The output from "netstat -r" shows only the routing
entries.

Quite a few developers have contributed to this project in the
past: Glebius Smirnoff, Luigi Rizzo, Alessandro Cerri, and
Andre Oppermann. And most recently:

- Kip Macy revised the locking code completely, thus completing
the last piece of the puzzle, Kip has also been conducting
active functional testing
- Sam Leffler has helped me improving/refactoring the code, and
provided valuable reviews
- Julian Elischer setup the perforce tree for me and has helped
me maintaining that branch before the svn conversion

o round-type -> round-trip.

PR: docs/115082
Submitted by: Jordan Gordeev
Approved by: re (kensmith)
MFC after: 1 week

Sort sections.

Remove trailing spaces.

Reviewed by: brueffer
MFC after: 3 days

- sort struct rtentry fields in man page in some order as they are in struct
- remove RTF_PRCLONING
- add rt_mtx field
- rename rt_metrics -> rt_metrics_lite
- mention that only 3 metrics are really used in rt_metrics_lite

Reviewed by: ru, andre

Overhaul the markup.

mdoc(7) police:

* correctly place parenthisized sentences
* remove hard sentence breaks
* use .Vt instead of .Fn

Mdoc Janitor:

* Fix hard sentence breaks.

mdoc(7): Use the new feature of the .In macro.

Grammar bogon: s/structure a route/structure of a route/

MFC after: 3 days

mdoc(7) police: Use the new .In macro for #include statements.

Removed whitespace at end-of-line; no content changes. I simply did
cd src/share; find man[1-9] -type f|xargs perl -pi -e 's/[ \t]+$//'

BTW, what editors are the culprits? I'm using vim and it shows
me whitespace at EOL in troff files with a thick blue block...

Reviewed by: Silence from cvs diff -b
MFC after: 7 days

mdoc(7) police: split punctuation characters + misc fixes.

Prepare for mdoc(7)NG.

mdoc(7) police: use the new features of the Nm macro.

The rt_refcnt member is a long now.

$Id$ -> $FreeBSD$

Bad ref time(2) changed to time(3)

Insert a missing newline.

.Sh AUTHOR -> .Sh AUTHORS according to mdoc specs.
Use .An/.Aq.

Fixed #include and/or prototype bugs in synopsis.

Revert $FreeBSD$ back to $Id$

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.

Correct some spelling errors.

Fix a macro error in HISTORY section.

Add an rtentry(9) page to describe the structure of a routing-table
entry and the metrics and flags which pertain thereto.