HardenedBSD/etc/rc.d/syscons

#!/bin/sh -
#
# Copyright (c) 2000  The FreeBSD Project
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#

# PROVIDE: syscons
# REQUIRE: LOGIN
# KEYWORD: nojail

. /etc/rc.subr

name="syscons"
extra_commands="setkeyboard"
setkeyboard_cmd="syscons_setkeyboard"
start_precmd="syscons_precmd"
start_cmd="syscons_start"
stop_cmd=":"

# stdin must be redirected because it might be for a serial console
#
kbddev=/dev/ttyv0
viddev=/dev/ttyv0

_sc_config="syscons"
_sc_initdone=
sc_init()
{
	if [ -z "${_sc_initdone}" ]; then
		echo -n "Configuring ${_sc_config}:"
		_sc_initdone=yes
	fi
}

# helper
syscons_configure_keyboard()
{
	# keymap
	#
	case ${keymap} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' keymap';	kbdcontrol < ${kbddev} -l ${keymap}
		;;
	esac

	# keyrate
	#
	case ${keyrate} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' keyrate';	kbdcontrol < ${kbddev} -r ${keyrate}
		;;
	esac

	# keybell
	#
	case ${keybell} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' keybell';	kbdcontrol < ${kbddev} -b ${keybell}
		;;
	esac

	# change function keys
	#
	case ${keychange} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' keychange'
		set - ${keychange}
		while [ $# -gt 0 ]; do
			kbdcontrol <${kbddev} -f "$1" "$2"
			shift; shift
		done
		;;
	esac

	# set this keyboard mode for all virtual terminals
	#
	if [ -n "${allscreens_kbdflags}" ]; then
		sc_init
		echo -n ' allscreens_kbd'
		for ttyv in /dev/ttyv*; do
			kbdcontrol ${allscreens_kbdflags} < ${ttyv} > ${ttyv} 2>&1
		done
	fi
}

syscons_setkeyboard()
{
	kbd=$1
                
	if [ -z "${kbd}" ]; then
		return 1
	fi

	# Check if the kbdmux(4) is the current active keyboard
	kbdcontrol -i < ${kbddev} | grep kbdmux > /dev/null 2>&1
	if [ $? -ne 0 ]; then
		kbdcontrol -k ${kbd} < ${kbddev} > /dev/null 2>&1
	fi

	_sc_config="keyboard"
	syscons_configure_keyboard

	# Terminate keyboard configuration line and reset global variables.
	#
	if [ -n "${_sc_initdone}" ]; then
		echo '.'
		_sc_config="syscons"
		_sc_initdone=
	fi

}

syscons_precmd()
{
	if [ ! -c $kbddev ]
	then
		return 1
	fi
	return 0
}

syscons_start()
{
	# keyboard
	#
	if [ -n "${keyboard}" ]; then
		syscons_setkeyboard ${keyboard}
	fi

	syscons_configure_keyboard

	# cursor type
	#
	case ${cursor} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' cursor';	vidcontrol < ${viddev} -c ${cursor}
		;;
	esac

	# screen mapping
	#
	case ${scrnmap} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' scrnmap';	vidcontrol < ${viddev} -l ${scrnmap}
		;;
	esac

	# font 8x16
	#
	case ${font8x16} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' font8x16';	vidcontrol < ${viddev} -f 8x16 ${font8x16}
		;;
	esac

	# font 8x14
	#
	case ${font8x14} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' font8x14';	vidcontrol < ${viddev} -f 8x14 ${font8x14}
		;;
	esac

	# font 8x8
	#
	case ${font8x8} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' font8x8';	vidcontrol < ${viddev} -f 8x8 ${font8x8}
		;;
	esac

	# blank time
	#
	case ${blanktime} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' blanktime';	vidcontrol < ${viddev} -t ${blanktime}
		;;
	esac

	# screen saver
	#
	case ${saver} in
	[Nn][Oo] | '')
		;;
	*)
		sc_init
		echo -n ' screensaver'
		for i in `kldstat | awk '$5 ~ "_saver\.ko$" { print $5 }'`; do
			kldunload ${i}
		done
		load_kld -e _saver ${saver}_saver
		;;
	esac

	# set this mode for all virtual screens
	#
	if [ -n "${allscreens_flags}" ]; then
		sc_init
		echo -n ' allscreens'
		for ttyv in /dev/ttyv*; do
			vidcontrol ${allscreens_flags} < ${ttyv} > ${ttyv} 2>&1
		done
	fi

	[ -n "${_sc_initdone}" ] && echo '.'
}

load_rc_config $name
run_rc_command $*