Remove $FreeBSD$: one-line bare tag

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

A number of places in the source tree still reference cuad.* after
sio(4) was deprecated by uart(4).

s/cuad/cuau/g/

PR: docs/171533
Reviewed by: imp
Approved by: cperciva (implicit)
MFC after: 3 weeks

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.

Catch up with PHK's sio(4) cuaa->cuad rework [sys/dev/sio/sio.c rev. 1.456].

PR: 73879
Submitted by: Steve Kargl <sgk@troutmask.apl.washington.edu>

Add BSD style copyrights (with permission from Charles Mott where appropriate)
Deprecate -alias further (after a repo-copy)

Accept MSCHAPv2 by default.
Enable and accept MPPE by default.

If we're in MP mode with a single open link, MP link level compression
isn't open and the links MRU >= our MRRU, send outbound traffic as
PROTO_IP rather than PROTO_MP. This shaves some bytes off the front
of each packet 'till the second link is brought up.

Idea obtained from: Cisco

Maintain input and output throughput averages and choose the highest
of the two when calculating the MP throughput average for the ``set
autoload'' implementation.

This makes more sense as all links I know of are full-duplex. This
also means that people may need to adjust their autoload settings
as 100% bandwidth is now the theoretical maximum rather than 200%
(but of course, halfing the current settings is probably not the
correct answer either!).

This involves a ppp version bump as we need to pass an extra
throughput array through the MP local domain socket.

Allow leading ``!'' characters in authkeys and chat scripts to
be doubled up to mean a single literaly ``!''.

Remove ``nat pptp'' as this is now done transparently by libalias.

Understand environment variables in commands

Submitted by: Mark Knight <markk@knigma.org>

Mention that it's only necessary to escape the '-' in chat scripts
twice (once for the arg parsing and once to make it a normal character).
Make the man page example consistent.

Reminded by: Bryan Liesner <bleez@netaxs.com>

Notice and warn about unterminated quoted strings in commands.
The entire command is ignored if the syntax is invalid...

depricated -> deprecated + mention the -alias flag status in README.changes

Implement a minimum idle time value as an optional second argument
to ``set timeout''.
This is useful for situations where your minimum call charge is (say)
5 minutes (like mine is)

Add ISDN support via isdnd & i4b. This requires version
0.81.1 of the i4b code - namely support of the I4B_VR_REQ
ioctl via the i4brbchX device.

Ppp controls the phone number, but idle timers and
SYNC/RAW decisions are still made by isdnd (in isdnd.rc).

This involves a new datalink state machine phase. The
``wait for carrier'' phase happens after dialing but
before logging in. The whole dial state should really
be abstracted so that each device type can deal with it
in its own way (thinking about PPPoE) - but that'll have
to wait.

The ``set cd'' symantics remain the same for tty devices,
but we now delay until we either get CD or timeout waiting
(at which time we drop the link if we require CD).

For i4b devices we always insist on carrier.

Thanks to hm@ for his help, and especially for pointing out
that I *don't* need to re-implement isdnd (that was a huge
waste of time !) :-]

o Obsolete the undocumented ``set weight'' command.
o If we're using RADIUS and the RADIUS mtu is less than our
peers mru/mrru, reduce our mtu to this value for NetBSD too.
o Make struct throughput's sample period dynamic and tweak the ppp
version number to reflect the extra stuff being passed through
the local domain socket as a result (MP mode).
o Measure the current throughput based on the number of samples actually
taken rather than on the full sample period.
o Keep the throughput statisics persistent while being passed to
another ppp invocation through the local domain socket.
o When showing throughput statistics after the timer has stopped, use
the stopped time for overall calculations, not the current time.
Also show the stopped time and how long the current throughput has
been sampled for.
o Use time() consistently in throughput.c
o Tighten up the ``show bundle'' output.
o Introduce the ``set bandwidth'' command.
o Rewrite the ``set autoload'' command. It now takes three arguments
and works based on a rolling bundle throughput average compared against
the theoretical bundle bandwidth over a given period (read: it's now
functional).

o Overhaul filtering, adding facilities to jump over rules and to
negate the sense of rules.
o Remove the redundant (and undocumented) ``host'' and ``port''
words (README.changes updated).
o Don't permit (and ignore) garbage instead of the protocol.

Mostly submitted by: Peter Jeremy <jeremyp@gsmx07.alcatel.com.au>

o Redesign the layering mechanism and make the aliasing code part of
the layering.

We now ``stack'' layers as soon as we open the device (when we figure
out what we're dealing with). A static set of `dispatch' routines are
also declared for dealing with incoming packets after they've been
`pulled' up through the stacked layers.

Physical devices are now assigned handlers based on the device type
when they're opened. For the moment there are three device types;
ttys, execs and tcps.

o Increment version number to 2.2
o Make an entry in [uw]tmp for non-tty -direct invocations (after
pap/chap authentication).
o Make throughput counters quad_t's
o Account for the absolute number of mbuf malloc()s and free()s in
``show mem''.
o ``show modem'' becomes ``show physical''.

Change ``set device'' so that it parses its arguments as one
device per argument rather than the old way of concatenating
everything then splitting the result at commas and whitespace.

Old syntax of ``set device /dev/cuaa0, /dev/cuaa1''
may no longer contain the comma, but syntax such as
``set device "!ssh host ppp -direct label"'' is now
possible.

Mention changes to the default authentication behaviour.

When our dial timeout is ``random'', display its value
correctly by invoking the timer to get the value before
displaying the message.
Don't assume that a value of 0 is ``random'' in
``show datalink''.
Make the random value between 1 and DIAL_TIMEOUT rather
than between 0 and DIAL_TIMEOUT-1

Wait by default for one second after the login script
is complete before checking carrier. If it's there,
the device supports carrier. If it's not it doesn't.

Add the ``set cd'' command for deciding how soon to check
for carrier, and for deciding if carrier is REQUIRED.

The default has changed: Pre 2.0 versions of ppp waited
for 1 second. Version 2 didn't wait, but this causes
problems with some (few?) modems that don't assert carrier
immediately on reporting CONNECT. The one second delay
is back now and can be removed with ``set cd 0''.

Bump the ppp version number in case this needs to be changed
again....

Mention the cosmetic necessity to ``iface clear'' in ppp.linkdown.

Correct ``set server'' usage and add mention that ``set ns'' changed
in README.changes.
Suggested by: stuart henderson <stuart@internationalschool.co.uk>

Some documentation corrections & typo fixes....