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#!/sbin/openrc-run
# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License, v2
# This is here to serve as a note to myself, and future developers.
#
# Any Display manager (gdm,kdm,xdm) has the following problem: if
# it is started before any getty, and no vt is specified, it will
# usually run on vt2. When the getty on vt2 then starts, and the
# DM is already started, the getty will take control of the keyboard,
# leaving us with a "dead" keyboard.
#
# Resolution: add the following line to /etc/inittab
#
# x:a:once:/etc/X11/startDM.sh
#
# and have /etc/X11/startDM.sh start the DM in daemon mode if
# a lock is present (with the info of what DM should be started),
# else just fall through.
#
# How this basically works, is the "a" runlevel is a additional
# runlevel that you can use to fork processes with init, but the
# runlevel never gets changed to this runlevel. Along with the "a"
# runlevel, the "once" key word means that startDM.sh will only be
# run when we specify it to run, thus eliminating respawning
# startDM.sh when "xdm" is not added to the default runlevel, as was
# done previously.
#
# This script then just calls "telinit a", and init will run
# /etc/X11/startDM.sh after the current runlevel completes (this
# script should only be added to the actual runlevel the user is
# using).
#
# Martin Schlemmer
# aka Azarah
# 04 March 2002
depend() {
need localmount xdm-setup
# this should start as early as possible
# we can't do 'before *' as that breaks it
# (#139824) Start after ypbind and autofs for network authentication
# (#145219 #180163) Could use lirc mouse as input device
# (#70689 comment #92) Start after consolefont to avoid display corruption
# (#291269) Start after quota, since some dm need readable home
# (#390609) gdm-3 will fail when dbus is not running
# (#366753) starting keymaps after X causes problems
after bootmisc consolefont modules netmount
after readahead-list ypbind autofs openvpn gpm lircmd
after quota keymaps
before alsasound
# Start before X
use consolekit dbus xfs
}
setup_dm() {
local MY_XDM
MY_XDM=$(echo "${DISPLAYMANAGER}" | tr '[:upper:]' '[:lower:]')
# Load our root path from profile.env
# Needed for kdm
PATH=${PATH}:$(. /etc/profile.env; echo "${ROOTPATH}")
NAME=
case "${MY_XDM}" in
kdm|kde)
EXE=/usr/bin/kdm
PIDFILE=/var/run/kdm.pid
;;
entrance*)
EXE=/usr/sbin/entrance
PIDFILE=/var/run/entrance.pid
;;
gdm|gnome)
EXE=/usr/bin/gdm
[ "${RC_UNAME}" != "Linux" ] && NAME=gdm-binary
PIDFILE=/var/run/gdm.pid
;;
wdm)
EXE=/usr/bin/wdm
PIDFILE=
;;
gpe)
EXE=/usr/bin/gpe-dm
PIDFILE=/var/run/gpe-dm.pid
;;
lxdm)
EXE=/usr/sbin/lxdm-binary
PIDFILE=/var/run/lxdm.pid
START_STOP_ARGS="--background"
;;
lightdm)
EXE=/usr/sbin/lightdm
PIDFILE=/var/run/lightdm.pid
START_STOP_ARGS="--background"
;;
*)
# first find out if there is such executable
EXE="$(command -v ${MY_XDM} 2>/dev/null)"
PIDFILE="/var/run/${MY_XDM}.pid"
# warn user that he is doing sick things if the exe was not found
if [ -z "${EXE}" ]; then
echo "ERROR: Your XDM value is invalid."
echo " No ${MY_XDM} executable could be found on your system."
fi
;;
esac
if ! [ -x "${EXE}" ]; then
EXE=/usr/bin/xdm
PIDFILE=/var/run/xdm.pid
if ! [ -x "/usr/bin/xdm" ]; then
echo "ERROR: Please set your DISPLAYMANAGER variable in /etc/conf.d/xdm,"
echo " or install x11-apps/xdm package"
eend 255
fi
fi
}
# Check to see if something is defined on our VT
vtstatic() {
if [ -e /etc/inittab ] ; then
grep -Eq "^[^#]+.*\<tty$1\>" /etc/inittab
elif [ -e /etc/ttys ] ; then
grep -q "^ttyv$(($1 - 1))" /etc/ttys
else
return 1
fi
}
start() {
local EXE NAME PIDFILE
setup_dm
if [ -f /etc/.noxdm ]; then
einfo "Skipping ${EXE##*/}, /etc/.noxdm found or \"nox\" bootparam passed."
rm /etc/.noxdm
return 0
fi
ebegin "Setting up ${EXE##*/}"
# save the prefered DM
save_options "service" "${EXE}"
save_options "name" "${NAME}"
save_options "pidfile" "${PIDFILE}"
save_options "start_stop_args" "${START_STOP_ARGS}"
if [ -n "${CHECKVT-y}" ] ; then
if vtstatic "${CHECKVT:-7}" ; then
if [ -x /sbin/telinit ] && [ "${SOFTLEVEL}" != "BOOT" ] && [ "${RC_SOFTLEVEL}" != "BOOT" ]; then
ewarn "Something is already defined on VT ${CHECKVT:-7}, will start X later"
telinit a >/dev/null 2>&1
return 0
else
eerror "Something is already defined on VT ${CHECKVT:-7}, not starting"
return 1
fi
fi
fi
/etc/X11/startDM.sh
eend 0
}
stop() {
local curvt retval
retval=0
if [ -t 0 ]; then
if type fgconsole >/dev/null 2>&1; then
curvt=$(fgconsole 2>/dev/null)
else
curvt=$(tty)
case "${curvt}" in
/dev/ttyv[0-9]*) curvt=${curvt#/dev/ttyv} ;;
*) curvt= ;;
esac
fi
fi
local myexe myname mypidfile myservice
myexe=$(get_options "service")
myname=$(get_options "name")
mypidfile=$(get_options "pidfile")
myservice=${myexe##*/}
[ -z "${myexe}" ] && return 0
ebegin "Stopping ${myservice}"
if start-stop-daemon --quiet --test --stop --exec "${myexe}"; then
start-stop-daemon --stop --exec "${myexe}" --retry TERM/5/TERM/5 \
${mypidfile:+--pidfile} ${mypidfile} \
${myname:+--name} ${myname}
retval=${?}
fi
# switch back to original vt
if [ -n "${curvt}" ]; then
if type chvt >/dev/null 2>&1; then
chvt "${curvt}"
else
vidcontrol -s "$((curvt + 1))"
fi
fi
eend ${retval} "Error stopping ${myservice}"
return ${retval}
}
# vim: set ts=4 :
|
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