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150 lines
3.9 KiB
150 lines
3.9 KiB
#!/bin/bash
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# Copyright 2011-2016 Mir Calculate. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# first param - autologin user
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XUSER=${1:-guest}
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# number of virtual console
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TTYNUM=${2:-7}
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# number of virtual console
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DISPLAYNUM=${3:-\:0}
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MAINLOOP=1
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XDMCMD=/usr/share/calculate/xdm/xdm
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# write pid for init.d/xdm (detect X for this xautologin)
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echo $BASHPID >/var/run/bash.pid
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# function for kill X server by TERM,INT,QUIT signals
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killXserver()
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{
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KILLXPID=$XPID
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XPID=
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MAINLOOP=
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# kill X by TERM
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[[ -d /proc/$KILLXPID ]] && kill $KILLXPID &>/dev/null
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# wait 5 sec
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for i in {0..5}
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do
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[[ -d /proc/$KILLXPID ]] || break
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sleep 1
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done
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WAITRELOGIN=
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# kill X by -KILL
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[[ -d /proc/$KILLXPID ]] && kill -KILL $KILLXPID &>/dev/null
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}
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# function for waiting X server
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waitX() {
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displaynum=${1#:}
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usingvt="using VT number"
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errorX="no screens found"
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successX="evdev"
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logfile=/var/log/Xorg.${displaynum}.log
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for i in 0.1 0.2 0.5 1
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do
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sleep $i
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if [[ -f $logfile ]]
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then
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for x in 0.5 1 2 4
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do
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grep -q "$errorX" $logfile && return 1
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grep -q "$successX" $logfile && return 0
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sleep $x
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done
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return 1
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fi
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done
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return 1
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}
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trap killXserver SIGTERM SIGINT SIGQUIT
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# rerun x session for XUSER while not shutdown and bash not receivce TERM
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HOMEDIR=`getent passwd $XUSER | awk -F: '{ print( $6 ); }'`
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[[ -d $HOMEDIR ]] || mkdir $HOMEDIR
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# export display num
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export DISPLAY=${DISPLAYNUM}
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export XAUTHORITY=$HOMEDIR/.Xauthority
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WAITRELOGIN=7
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while id $XUSER &>/dev/null &&
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[[ -n $MAINLOOP ]] &&
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[[ "$(rc-status -r)" != "shutdown" ]]
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do
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# disable relogin by fourth param
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if [[ "$4" == "off" ]];then
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MAINLOOP=
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fi
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# prepare user xauthority
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mcookie | sed -e "s/^/add ${DISPLAYNUM} . /" | xauth -f $XAUTHORITY -q
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chown $XUSER. $XAUTHORITY
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chmod 600 $XAUTHORITY
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# perform user profile setting up
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X ${DISPLAYNUM} -auth $XAUTHORITY vt${TTYNUM} -noreset &
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XPID=$!
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if waitX ${DISPLAYNUM}
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then
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if [[ -e ${XDMCMD} ]]
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then
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env USER=${XUSER} ${XDMCMD} --login || break
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fi
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# write pam enviroment for pam_ck_connector
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cat >/home/${XUSER}/.pam_environment <<EOF
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CKCON_DISPLAY_DEVICE=
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CKCON_X11_DISPLAY_DEVICE=/dev/tty${TTYNUM}
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CKCON_X11_DISPLAY=${DISPLAYNUM}
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EOF
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# registry user in utmp and wtmp
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sessreg -a -l ${DISPLAYNUM} ${XUSER}
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# run x session for user XUSER in background
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su - ${XUSER} -c 'source /etc/profile
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# replace xinit for startx
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xinit()
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{
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# if file is script run it throught bash
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if file $1 | grep -1 "POSIX shell script"
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then
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/bin/bash $*
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else
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$*
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fi
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}
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# run script start xsession
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source /usr/bin/startx' &
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# wait for right work trap SIGTERM
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XSESSIONPID=$!
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while [[ -d /proc/$XSESSIONPID ]] &&
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[[ "$(rc-status -r)" != "shutdown" ]]
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do
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sleep 1
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done
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# remove user from utmp and wtmp
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sessreg -d -l ${DISPLAYNUM} ${XUSER}
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# perform logout scripts for user
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if [[ -n $WAITRELOGIN ]]
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then
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sleep $WAITRELOGIN
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fi
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if [[ -e ${XDMCMD} ]]
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then
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env USER=${XUSER} ${XDMCMD} --logout
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fi
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fi
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[[ -n $XPID ]] && kill $XPID
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wait $XPID
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done
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exit 0
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