#!/bin/sh
#
# Generic start/stop script for MIMEDefang. Should work on most
# flavors of UNIX.
RETVAL=0
prog='mimedefang'
SPOOLDIR='/var/spool/MIMEDefang'
PID="$SPOOLDIR/$prog.pid"
MXPID="$SPOOLDIR/$prog-multiplexor.pid"
# Is the program executable? We search in /usr/bin and /usr/local/bin.
if [ -x /usr/local/bin/$prog ] ; then
PROGDIR=/usr/local/bin
elif [ -x /usr/bin/$prog ] ; then
PROGDIR=/usr/bin
elif [ -x /usr/local/bin/$prog ] ; then
PROGDIR=/usr/local/bin
else
exit 0
fi
# Locale should be set to "C" for generating valid date headers
LC_ALL=C
export LC_ALL
# The settings which follow are defaults. You can override them by
# placing assignments in /usr/local/etc/mimedefang/mimedefang.conf
# The socket used by mimedefang to communicate with sendmail
SOCKET=$SPOOLDIR/mimedefang.sock
# Run the multiplexor and filters as this user, not root. RECOMMENDED
MX_USER=mailnull
# Syslog facility
# SYSLOG_FACILITY=mail
# If you want to keep spool directories around if the filter fails,
# set the next one to yes
# KEEP_FAILED_DIRECTORIES=no
# "yes" turns on the multiplexor relay checking function
# MX_RELAY_CHECK=no
# "yes" turns on the multiplexor HELO checking function
# MX_HELO_CHECK=no
# "yes" turns on the multiplexor sender checking function
# MX_SENDER_CHECK=no
# "yes" turns on the multiplexor recipient checking function
# MX_RECIPIENT_CHECK=no
# Set to yes if you want the multiplexor to log events to syslog
MX_LOG=yes
# Set to yes if you want to use an embedded Perl interpreter
# MX_EMBED_PERL=yes
# Set to full path of socket for Sendmail's SOCKETMAP map, if you
# want to use it with MIMEDefang
# MX_MAP_SOCKET=$SPOOLDIR/map.sock
# The multiplexor does not start all slaves at the same time. Instead,
# it starts one slave every MX_SLAVE_DELAY seconds when the system is idle.
# (If the system is busy, the multiplexor starts slaves as incoming mail
# requires attention.)
# MX_SLAVE_DELAY=3
# The next setting is an absolute limit on slave activation. The multiplexor
# will NEVER activate a slave within MX_MIN_SLAVE_DELAY seconds of another.
# The default of zero means that the multiplexor will activate slaves as
# quickly as necessary to keep up with incoming mail.
# MX_MIN_SLAVE_DELAY=0
# Set to yes if you want the multiplexor to log stats in
# /var/log/mimedefang/stats The /var/log/mimedefang directory must
# exist and be writable by the user you're running MIMEDefang as.
# MX_STATS=no
# Number of slaves reserved for connections from loopback. Use -1
# for default behaviour, 0 to allow loopback connections to queue,
# or >0 to reserve slaves for loopback connections
LOOPBACK_RESERVED_CONNECTIONS=-1
# Set to yes if you want the stats file flushed after each entry
# MX_FLUSH_STATS=no
# Set to yes if you want the multiplexor to log stats to syslog
# MX_STATS_SYSLOG=no
# The socket used by the multiplexor
# MX_SOCKET=$SPOOLDIR/mimedefang-multiplexor.sock
# Maximum # of requests a process handles
# MX_REQUESTS=200
# Minimum number of processes to keep. The default of 0 is probably
# too low; we suggest 2 instead.
MX_MINIMUM=2
# Maximum number of processes to run (mail received while this many
# processes are running is rejected with a temporary failure, so be
# wary of how many emails you receive at a time). This applies only
# if you DO use the multiplexor. The default value of 2 is probably
# too low; we suggest 10 instead
MX_MAXIMUM=10
# Uncomment to log slave status; it will be logged every
# MX_LOG_SLAVE_STATUS_INTERVAL seconds
# MX_LOG_SLAVE_STATUS_INTERVAL=30
# Uncomment next line to have busy slaves send status updates to the
# multiplexor. NOTE: Consumes one extra file descriptor per slave, plus
# a bit of CPU time.
# MX_STATUS_UPDATES=yes
# Limit slave processes' resident-set size to this many kilobytes. Default
# is unlimited.
MX_MAX_RSS=10000
# Limit total size of slave processes' memory space to this many kilobytes.
# Default is unlimited.
MX_MAX_AS=30000
# If you want to use the "notification" facility, set the appropriate port.
# See the mimedefang-notify man page for details.
# MX_NOTIFIER=inet:4567
# Number of seconds a process should be idle before checking for
# minimum number and killed
# MX_IDLE=300
# Number of seconds a process is allowed to scan an email before it is
# considered dead. The default is 30 seconds; we suggest 600.
MX_BUSY=600
# Extra sendmail macros to pass. Actually, you can add any extra
# mimedefang options here...
# MD_EXTRA="-a auth_author"
# Multiplexor queue size -- default is 0 (no queueing)
# MX_QUEUE_SIZE=10
# Multiplexor queue timeout -- default is 30 seconds
# MX_QUEUE_TIMEOUT=30
# SUBFILTER specifies which filter rules file to use
SUBFILTER=/usr/local/etc/mimedefang/mimedefang-filter
# Source configuration
if [ -f /usr/local/etc/mimedefang/$prog.conf ] ; then
. /usr/local/etc/mimedefang/$prog.conf
fi
# Make sure required vars are set
SOCKET=${SOCKET:=$SPOOLDIR/$prog.sock}
MX_SOCKET=${MX_SOCKET:=$SPOOLDIR/$prog-multiplexor.sock}
start_it() {
if test -r $PID ; then
if kill -0 `cat $PID` > /dev/null 2>&1 ; then
echo "mimedefang (`cat $PID`) seems to be running."
return 1
fi
fi
if test -r $MXPID ; then
if kill -0 `cat $MXPID` > /dev/null 2>&1 ; then
echo "mimedefang-multiplexor (`cat $MXPID`) seems to be running."
return 1
fi
fi
printf "%-60s" "Starting $prog-multiplexor: "
rm -f $MX_SOCKET > /dev/null 2>&1
if [ "$MX_EMBED_PERL" = "yes" ] ; then
EMBEDFLAG=-E
else
EMBEDFLAG=""
fi
$PROGDIR/$prog-multiplexor -p $MXPID \
$EMBEDFLAG \
`[ -n "$SPOOLDIR" ] && echo "-z $SPOOLDIR"` \
`[ -n "$FILTER" ] && echo "-f $FILTER"` \
`[ -n "$SYSLOG_FACILITY" ] && echo "-S $SYSLOG_FACILITY"` \
`[ -n "$SUBFILTER" ] && echo "-F $SUBFILTER"` \
`[ -n "$MX_MINIMUM" ] && echo "-m $MX_MINIMUM"` \
`[ -n "$MX_MAXIMUM" ] && echo "-x $MX_MAXIMUM"` \
`[ -n "$MX_MAP_SOCKET" ] && echo "-N $MX_MAP_SOCKET"` \
`[ -n "$MX_LOG_SLAVE_STATUS_INTERVAL" ] && echo "-L $MX_LOG_SLAVE_STATUS_INTERVAL"` \
`[ -n "$MX_USER" ] && echo "-U $MX_USER"` \
`[ -n "$MX_IDLE" ] && echo "-i $MX_IDLE"` \
`[ -n "$MX_BUSY" ] && echo "-b $MX_BUSY"` \
`[ -n "$MX_REQUESTS" ] && echo "-r $MX_REQUESTS"` \
`[ -n "$MX_SLAVE_DELAY" ] && echo "-w $MX_SLAVE_DELAY"` \
`[ -n "$MX_MIN_SLAVE_DELAY" ] && echo "-W $MX_MIN_SLAVE_DELAY"` \
`[ -n "$MX_MAX_RSS" ] && echo "-R $MX_MAX_RSS"` \
`[ -n "$MX_MAX_AS" ] && echo "-M $MX_MAX_AS"` \
`[ "$MX_LOG" = "yes" ] && echo "-l"` \
`[ "$MX_STATS" = "yes" ] && echo "-t /var/log/mimedefang/stats"` \
`[ "$MX_STATS" = "yes" -a "$MX_FLUSH_STATS" = "yes" ] && echo "-u"` \
`[ "$MX_STATS_SYSLOG" = "yes" ] && echo "-T"` \
`[ "$MX_STATUS_UPDATES" = "yes" ] && echo "-Z"` \
`[ -n "$MX_QUEUE_SIZE" ] && echo "-q $MX_QUEUE_SIZE"` \
`[ -n "$MX_QUEUE_TIMEOUT" ] && echo "-Q $MX_QUEUE_TIMEOUT"` \
`[ -n "$MX_NOTIFIER" ] && echo "-O $MX_NOTIFIER"` \
-s $MX_SOCKET
RETVAL=$?
if [ $RETVAL = 0 ] ; then
echo "[ OK ]"
else
echo "[FAILED]"
return 1
fi
# Start mimedefang
printf "%-60s" "Starting $prog: "
rm -f $SOCKET > /dev/null 2>&1
$PROGDIR/$prog -P $PID -R $LOOPBACK_RESERVED_CONNECTIONS \
-m $MX_SOCKET \
`[ -n "$SPOOLDIR" ] && echo "-z $SPOOLDIR"` \
`[ -n "$MX_USER" ] && echo "-U $MX_USER"` \
`[ -n "$SYSLOG_FACILITY" ] && echo "-S $SYSLOG_FACILITY"` \
`[ "$MX_RELAY_CHECK" = "yes" ] && echo "-r"` \
`[ "$MX_HELO_CHECK" = "yes" ] && echo "-H"` \
`[ "$MX_SENDER_CHECK" = "yes" ] && echo "-s"` \
`[ "$MX_RECIPIENT_CHECK" = "yes" ] && echo "-t"` \
`[ "$KEEP_FAILED_DIRECTORIES" = "yes" ] && echo "-k"` \
`[ "$MD_EXTRA" != "" ] && echo $MD_EXTRA` \
`[ "$ALLOW_NEW_CONNECTIONS_TO_QUEUE" = "yes" ] && echo "-q"` \
-p $SOCKET
RETVAL=$?
if [ $RETVAL = 0 ] ; then
echo "[ OK ]"
else
echo "[FAILED]"
kill `cat $MXPID`
return 1
fi
return 0
}
stop_it() {
# Stop daemon
printf "%-60s" "Shutting down $prog: "
if test -f "$PID" ; then
kill `cat $PID`
RETVAL=$?
else
RETVAL=1
fi
if [ $RETVAL = 0 ] ; then
echo "[ OK ]"
else
echo "[FAILED]"
fi
# Stop daemon
printf "%-60s" "Shutting down $prog-multiplexor: "
if test -f "$MXPID" ; then
kill `cat $MXPID`
RETVAL=$?
else
RETVAL=1
fi
if [ $RETVAL = 0 ] ; then
echo "[ OK ]"
else
echo "[FAILED]"
fi
rm -f $MX_SOCKET > /dev/null 2>&1
rm -f $SOCKET > /dev/null 2>&1
if [ "$1" = "wait" ] ; then
printf "Waiting for daemons to exit."
WAITPID=""
test -f $PID && WAITPID=`cat $PID`
test -f $MXPID && WAITPID="$WAITPID `cat $MXPID`"
n=0
while [ -n "$WAITPID" ] ; do
W2=""
for pid in $WAITPID ; do
if kill -0 $pid > /dev/null 2>&1 ; then
W2="$W2 $pid"
fi
done
printf "."
n=`expr $n + 1`
test $n -eq 30 && kill -KILL $WAITPID > /dev/null 2>&1
test $n -eq 60 && break
WAITPID=$W2
sleep 1
done
echo ""
fi
rm -f $MXPID > /dev/null 2>&1
rm -f $PID > /dev/null 2>&1
}
# See how we were called.
case "$1" in
start)
start_it
;;
stop)
stop_it $2
;;
restart)
stop_it wait
start_it
RETVAL=$?
;;
reread|reload)
if [ -x $PROGDIR/md-mx-ctrl ] ; then
$PROGDIR/md-mx-ctrl -s $MX_SOCKET reread > /dev/null 2>&1
RETVAL=$?
if [ $RETVAL = 0 ] ; then
echo "Told $prog-multiplexor to force reread of filter rules."
else
echo "Could not communicate with $prog-multiplexor"
fi
else
if [ -r $MXPID ] ; then
kill -INT `cat $MXPID`
RETVAL=$?
if [ $RETVAL = 0 ] ; then
echo "Told $prog-multiplexor to force reread of filter rules."
else
echo "Could not signal $prog-multiplexor"
fi
else
RETVAL=1
echo "Could not find process-ID of $prog-multiplexor"
fi
fi
;;
*)
echo "Usage: $0 {start|stop|restart|reread|reload}"
exit 1
esac
exit $RETVAL