Remove $FreeBSD$: one-line .h pattern

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

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

various: general adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.

Check l2cap socket initialisation and define L2CAP_SOCKET_CHECKED
This will fix build.

Change the code to use the openpty(3) API which uses the pts(4) driver
instead of the pty(4) driver.

PR: 184597
Submitted by: tobias.rehbein
MFC after: 2 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.

Clenup code a bit and do not call fork(2) before dameon(3) where not needed.

MFC after: 1 month

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

Make -t <tty> optional in server mode. If not specified use stdin/stdout.
Document this. Do not require channel number in server mode. If not
specified - bind to ''wildcard'' channel zero. Real channel number will
be obtained automatically and registered with local sdpd(8). While I'm
here fix serial port service registration.

Submitted by: luigi
Tested by: Helge Oldach <freebsd-bluetooth at oldach dot net>
MFC after: 3 days

Check return value of listen().

Reviewed by: emax
Approved by: re (kensmith)

Add "server mode" to rfcomm_sppd(1).

Submitted by: Dave Eckhardt, bms
Tested by: Dave Eckhardt, Eric Anderson, bms

Teach rfcomm_sppd(8) to recognize "lan" (for LAN Access Using PPP) service
name in '-c' (RFCOMM channel) option.

MFC after: 3 days

Teach rfcomm_sppd(1) about service names, so it is possible to specify
service name instead of channel number with -c command option. Supported
service names are: DUN (Dial-Up Networking), FAX (Fax) and SP (Serial Port).

MFC after: 1 week

Make -t <tty> optional. If not specified use stdin/stdout.
Document this. These changes make it possible to write something like

set device "!/usr/bin/rfcomm_sppd -a BD_ADDR"

inside the /etc/ppp/ppp.conf file. Very convenient for the users :)

Submitted by: Konstantin Stepanenkov <kstepanenkov AT oilspace DOT com>
MFC after: 3 days

- One can use both BD_ADDR or name to specify address of the Bluetooth device.
Update man pages to document this fact.

- Update usage messages

- Change u_intXXX to uintXXX

Fix a couple of stylistic issues

Reviewed by: imp (mentor), ru
Approved by: imp (mentor)

Fix uncontrolled access to the buffer in rfcomm_sppd(1).
Fix typo in hcsecd(8) man page.

Submitted by: Guido Falsi <mad@madpilot.net>
Reviewed by: imp (mentor)
Approved by: imp (mentor)

Update Bluetooth code.

Reviewed by: M. Warner Losh <imp@bsdimp.com>; John Hay <jhay@freebsd.org>
Approved by: M. Warner Losh <imp@bsdimp.com> (mentor)

Part one of undating the bluetooth code to the newest version

Submitted by: Maksim Yevmenkin <m_evmenkin@yahoo.com>
Approved by: re@