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#!/bin/bash
# Copyright (C) 2004-2007 Centro de Computacao Cientifica e Software Livre
# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
# This configuration runs Xephyr on gdm, using gdmdynamic
XEPHYR_WRAPPER=${MDM_SCRIPTS}/xephyr-wrapper
RETRIES=2
SLEEP=1
GDMDYNAMIC="gdmdynamic -t $RETRIES -s $SLEEP"
GDM_SOCKET='/var/run/gdm_socket'
export XAUTHORITY='/var/lib/gdm/:0.Xauth'
function display_manager_init () {
# This function should stop running processes, remove logs, links, locks, or
# anything your display manager might need.
# Consider calling display_manager_stop here if you don't need anything
# else.
# No problem if it's already running...
display_manager_stop
/etc/init.d/gdm start
}
function display_manager_start_monoseat () {
# This function is called when the computer has only 1 video card.
# You should open only 1 xserver and that's it: normal usage, not multiseat
# Do NOT configure devices or stuff like that
# We assume $DISPLAY is already set here.
$GDMDYNAMIC -a 0=XHandled
$GDMDYNAMIC -r 0
# XXX: find a better way to wait for X to start
sleep 5;
}
function display_manager_start_underneath_xserver () {
# In case we're using nested xservers (like Xephyr), we'll need to start an
# xserver to run the nested servers on top of it
# Don't put login screen on this server!
# We assume $DISPLAY is already set here.
$GDMDYNAMIC -a 0=XNotHandled
$GDMDYNAMIC -r 0
# XXX: find a better way to wait for X to start
sleep 5;
}
function display_manager_start_seat () {
# This is where we start the xserver that will have a login screen
# In case of multiseat with Xephyr, this function starts the Xephyrs and
# puts the login screens on them.
# We assume $DISPLAY is already set here.
# This function is called by mdm-start-seat, which gives you variables:
# - $KEYBOARD and $MOUSE, which point to evdev device nodes.
# - $SEAT_NUMBER variable corresponds to the number that the user will
# have to press on the keyboard. Might be useful here.
# - $MY_SCREEN_SIZE for the size of screen (needed when running nested
# xservers)
# - $MY_XKB_LAYOUT and $MY_XKB_MODEL, for the keyboard associated with the
# seat
echo "Xephyr :${SEAT_NUMBER} -br"
echo " -parent $SEAT_WINDOW_ID"
echo " -mouse evdev,,device=$MOUSE"
echo " -keybd"
echo -n " evdev,,device=$KEYBOARD,xkbmodel=$MY_XKB_MODEL,"
echo "xkblayout=$MY_XKB_LAYOUT"
echo " -${CONNECTION_TYPE} ${CONNECTION_TARGET} 2>&1 &"
$GDMDYNAMIC "-a ${SEAT_NUMBER}=${XEPHYR_WRAPPER} -br :${SEAT_NUMBER} \
-display $DISPLAY \
-xauthority $XAUTHORITY \
-parent $SEAT_WINDOW_ID \
-mouse evdev,,device=$MOUSE \
-keybd \
evdev,,device=$KEYBOARD,xkbmodel=$MY_XKB_MODEL,xkblayout=$MY_XKB_LAYOUT"
$GDMDYNAMIC -r ${SEAT_NUMBER}
# XXX: We're letting gdm do everything: it will restart Xephyr whenever it
# dies, it will do a lot of stuff. This way, we won't be able to reconfigure
# input. We need to find a way to do this, maybe through gdm itself.
echo "Exiting (gdm will handle the Xephyrs for us)."
exit 1;
}
function display_manager_stop () {
# This function should kill everything it has to kill, so that we REALLY
# stop all the seats, kill all the Xephyrs, remove locks, links and stuff
# like that.
if [ -e "$GDM_SOCKET" ]; then
SERVERS=($(gdmdynamic -l | tr ';' '\n'| cut -d':' -f2 | cut -d',' -f1))
for i in ${SERVERS[@]}; do
$GDMDYNAMIC -d $i
done
fi
}
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