debian/exim4-base.exim4.init

   1 #! /bin/sh
   2 # /etc/init.d/exim4
   3 #
   4 # Written by Miquel van Smoorenburg <miquels@drinkel.ow.org>.
   5 # Modified for Debian GNU/Linux by Ian Murdock <imurdock@gnu.ai.mit.edu>.
   6 # Modified for exim by Tim Cutts <timc@chiark.greenend.org.uk>
   7 # Modified for exim4 by Andreas Metzler <ametzler@debian.org>
   8 #                   and Marc Haber <mh+debian-packages@zugschlus.de>
   9
  10 ### BEGIN INIT INFO
  11 # Provides:          exim4
  12 # Required-Start:    $remote_fs $syslog $named $network $time
  13 # Required-Stop:     $remote_fs $syslog $named $network
  14 # Should-Start:      postgresql mysql clamav-daemon greylist spamassassin
  15 # Should-Stop:       postgresql mysql clamav-daemon greylist spamassassin
  16 # Default-Start:     2 3 4 5
  17 # Default-Stop:      0 1 6
  18 # Short-Description: exim Mail Transport Agent
  19 # Description:       exim is a Mail Transport agent
  20 ### END INIT INFO
  21
  22 set -e
  23
  24 test -x /usr/lib/exim4/exim4 || exit 0
  25
  26 . /lib/lsb/init-functions
  27
  28 if [ -n "$EX4DEBUG" ]; then
  29   echo "now debugging $0 $@"
  30   set -x
  31 fi
  32
  33 LANG=C
  34 export LANG
  35
  36 #read default file
  37 QUEUERUNNER='combined'
  38 QUEUEINTERVAL='30m'
  39 UPEX4OPTS=''
  40 [ -f /etc/default/exim4 ] && . /etc/default/exim4
  41 PIDFILE="/run/exim4/exim.pid"
  42 QRPIDFILE="/run/exim4/eximqr.pid"
  43
  44 upex4conf() {
  45   UPEX4CONF="update-exim4.conf"
  46   OLDIFS="$IFS"
  47   IFS=:
  48   for p in $PATH; do
  49     if [ -x "$p/$UPEX4CONF" ]; then
  50       IFS="$OLDIFS"
  51       $p/$UPEX4CONF $UPEX4OPTS $1
  52       return 0
  53     fi
  54   done
  55   IFS="$OLDIFS"
  56 }
  57
  58 # Exit if exim runs from /etc/inetd.conf
  59 if [ -f /etc/inetd.conf ] && grep -E -q '^[[:space:]]*((\*|[[:alnum:].-]+):)?smtp[[:space:]]' /etc/inetd.conf
  60 then
  61   upex4conf
  62   exit 0
  63 fi
  64
  65
  66 DAEMON="/usr/sbin/exim4"
  67 NAME="exim4"
  68
  69 # this is from madduck on IRC, 2006-07-06
  70 # There should be a better possibility to give daemon error messages
  71 # and/or to log things
  72 log()
  73 {
  74   case "$1" in
  75     [[:digit:]]*) success=$1; shift;;
  76     *) :;;
  77   esac
  78   log_action_begin_msg "$1"; shift
  79   log_action_end_msg ${success:-0} "$*"
  80 }
  81
  82 start_exim()
  83 {
  84   [ -e /run/exim4 ] || \
  85     install -d -oDebian-exim -gDebian-exim -m750 /run/exim4
  86   case ${QUEUERUNNER} in
  87     combined)
  88       start_daemon -p "$PIDFILE" \
  89         "$DAEMON" -bd "-q${QFLAGS}${QUEUEINTERVAL}" \
  90         ${COMMONOPTIONS} \
  91         ${QUEUERUNNEROPTIONS} \
  92         ${SMTPLISTENEROPTIONS}
  93       log_progress_msg "exim4"
  94       ;;
  95     separate)
  96       start_daemon -p "$PIDFILE" \
  97         "$DAEMON" -bd \
  98         ${COMMONOPTIONS} \
  99         ${SMTPLISTENEROPTIONS}
 100       log_progress_msg "exim4_listener"
 101       start_daemon -p "$QRPIDFILE" \
 102         "$DAEMON" -oP $QRPIDFILE \
 103         "-q${QFLAGS}${QUEUEINTERVAL}" \
 104         ${COMMONOPTIONS} \
 105         ${QUEUERUNNEROPTIONS}
 106       log_progress_msg "exim4_queuerunner"
 107       ;;
 108     queueonly)
 109       start_daemon -p "$PIDFILE" \
 110         "$DAEMON" -oP $PIDFILE \
 111         "-q${QFLAGS}${QUEUEINTERVAL}" \
 112         ${COMMONOPTIONS} \
 113         ${QUEUERUNNEROPTIONS}
 114       log_progress_msg "exim4_queuerunner"
 115       ;;
 116     no|ppp)
 117       start_daemon -p "$PIDFILE" \
 118         "$DAEMON" -bd \
 119         ${COMMONOPTIONS} \
 120         ${SMTPLISTENEROPTIONS}
 121       log_progress_msg "exim4_listener"
 122       ;;
 123     nodaemon)
 124       ;;
 125   esac
 126 }
 127
 128 stop_exim()
 129 {
 130 # we try to kill eximqr and exim SMTP listener, no matter what
 131 # ${QUEUERUNNER} is set to, we could have switched since starting.
 132   if [ -f "$QRPIDFILE" ]; then
 133     killproc -p "$QRPIDFILE" "$DAEMON"
 134     # exim does not remove the pidfile
 135     if [ $? -eq 0 ] ; then rm -f "$QRPIDFILE" ; fi
 136     log_progress_msg "exim4_queuerunner"
 137   fi
 138   if [ -f "$PIDFILE" ]; then
 139     killproc -p "$PIDFILE" "$DAEMON"
 140     # exim does not remove the pidfile
 141     if [ $? -eq 0 ] ; then rm -f "$PIDFILE" ; fi
 142     log_progress_msg "exim4_listener"
 143   fi
 144 }
 145
 146 reload_exim()
 147 {
 148   case ${QUEUERUNNER} in
 149     combined|no|ppp|queueonly)
 150       killproc -p "$PIDFILE" "$DAEMON" -HUP
 151       log_progress_msg "exim4"
 152       ;;
 153     separate)
 154       killproc -p "$PIDFILE" "$DAEMON" -HUP
 155       log_progress_msg "exim4_listener"
 156       killproc -p "$QRPIDFILE" "$DAEMON" -HUP
 157       log_progress_msg "exim4_queuerunner"
 158       ;;
 159   esac
 160 }
 161
 162 kill_all_exims()
 163 {  SIG="${1:-TERM}"
 164   for pid in $(pidof $NAME); do
 165     if [ "$(readlink /proc/$pid/root)" = "/" ]; then
 166       kill -$SIG $pid
 167     fi
 168   done
 169 }
 170
 171 status()
 172 {
 173   # the exit value of this function reflects the status of the SMTP
 174   # service. Output shows the status of the queue runner as well.
 175   SMTPNAME="SMTP listener daemon"
 176   QRNAME="separate queue runner daemon"
 177   if [ "${QUEUERUNNER}" = "combined" ]; then
 178       SMTPNAME="combined SMTP listener and queue runner daemon"
 179   elif [ "${QUEUERUNNER}" = "queueonly" ]; then
 180     SMTPNAME="separate queue runner daemon"
 181   fi
 182   log_action_begin_msg "checking $QRNAME"
 183   if pidofproc -p "$QRPIDFILE" "$DAEMON" >/dev/null; then
 184     log_action_end_msg 0 "running"
 185   else
 186     if [ -e "$QRPIDFILE" ]; then
 187       log_action_end_msg 1 "$QRNAME failed"
 188     else
 189       log_action_end_msg 0 "not running"
 190     fi
 191   fi
 192   log_action_begin_msg "checking $SMTPNAME"
 193   if pidofproc -p "$PIDFILE" "$DAEMON" >/dev/null; then
 194     log_action_end_msg 0 "running"
 195     exit 0
 196   else
 197     if [ -e "$PIDFILE" ]; then
 198       log_action_end_msg 1 "$SMTPNAME failed"
 199       exit 1
 200     else
 201       log_action_end_msg 0 "not running"
 202       exit 3
 203     fi
 204   fi
 205 }
 206
 207 # check for valid configuration file
 208 isconfigvalid()
 209 {
 210 if ! $DAEMON -bV > /dev/null ; then
 211   log 1 "Warning! Invalid configuration file for $NAME. Exiting."
 212   exit 1
 213 fi
 214 }
 215
 216 # check for non-empty paniclog
 217 warn_paniclog()
 218 {
 219   if [ -s "/var/log/exim4/paniclog" ]; then
 220     if [ -z "$E4BCD_PANICLOG_NOISE" ] || grep -vq "$E4BCD_PANICLOG_NOISE" /var/log/exim4/paniclog; then
 221       echo "ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken" 1>&2
 222     fi
 223   fi
 224 }
 225
 226 case "$1" in
 227   start)
 228     log_daemon_msg "Starting MTA"
 229     # regenerate exim4.conf
 230     upex4conf
 231     isconfigvalid
 232     start_exim
 233     log_end_msg 0
 234     warn_paniclog
 235     ;;
 236   stop)
 237     log_daemon_msg "Stopping MTA"
 238     stop_exim
 239     log_end_msg 0
 240     warn_paniclog
 241     ;;
 242   restart)
 243     # check whether newly generated config would work
 244     upex4conf --check
 245     log_daemon_msg "Stopping MTA for restart"
 246     stop_exim
 247     # regenerate exim4.conf
 248     upex4conf
 249     isconfigvalid
 250     log_end_msg 0
 251     sleep 2
 252     log_daemon_msg "Restarting MTA"
 253     start_exim
 254     log_end_msg 0
 255     warn_paniclog
 256     ;;
 257   reload|force-reload)
 258     log_daemon_msg "Reloading $NAME configuration files"
 259     # regenerate exim4.conf
 260     upex4conf
 261     isconfigvalid
 262     reload_exim
 263     log_end_msg 0
 264     warn_paniclog
 265     ;;
 266   status)
 267     status
 268     ;;
 269   force-stop)
 270     kill_all_exims $2
 271     ;;
 272   *)
 273     echo "Usage: $0 {start|stop|restart|reload|status|force-stop}"
 274     exit 1
 275     ;;
 276 esac
 277
 278 exit 0
 279 # vim:tabstop=2:expandtab:shiftwidth=2