2008-05-30 16:47:24 +00:00
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#!/bin/sh
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2006-01-24 21:45:42 +00:00
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# vim:textwidth=80:tabstop=4:shiftwidth=4:smartindent:autoindent
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CLIARGS="$*" # Grab any args passed to safe_asterisk
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TTY=9 # TTY (if you want one) for Asterisk to run on
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CONSOLE=yes # Whether or not you want a console
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2003-02-18 18:15:30 +00:00
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#NOTIFY=ben@alkaloid.net # Who to notify about crashes
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2006-08-14 01:13:32 +00:00
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#EXEC=/path/to/somescript # Run this command if Asterisk crashes
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2007-09-06 16:57:20 +00:00
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#LOGFILE=/path/to/logfile # Where to place the normal logfile (disabled if blank)
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#SYSLOG=local0 # Which syslog facility to use (disabled if blank)
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2006-01-24 21:45:42 +00:00
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MACHINE=`hostname` # To specify which machine has crashed when getting the mail
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2003-02-18 18:15:30 +00:00
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DUMPDROP=/tmp
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2006-01-24 22:06:37 +00:00
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SLEEPSECS=4
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2005-08-14 02:19:16 +00:00
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ASTSBINDIR=__ASTERISK_SBIN_DIR__
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2007-05-11 16:37:16 +00:00
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ASTPIDFILE=__ASTERISK_VARRUN_DIR__/asterisk.pid
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2006-01-24 21:45:42 +00:00
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# comment this line out to have this script _not_ kill all mpg123 processes when
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# asterisk exits
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KILLALLMPG123=1
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# run asterisk with this priority
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2006-01-24 22:06:37 +00:00
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PRIORITY=0
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2006-01-24 21:45:42 +00:00
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# set system filemax on supported OSes if this variable is set
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# SYSMAXFILES=262144
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# set max files open with ulimit. On linux systems, this will be automatically
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# set to the system's maximum files open devided by two, if not set here.
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# MAXFILES=32768
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2007-09-06 16:57:20 +00:00
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function message() {
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echo "$1" >&2
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if [ "$SYSLOG" != "" ]; then
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logger -p "${SYSLOG}.warn" -t safe_asterisk[$$] "$1"
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fi
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if [ "$LOGFILE" != "" ]; then
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echo "safe_asterisk[$$]: $1" >> "$LOGFILE"
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fi
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}
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2008-05-05 03:25:35 +00:00
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# Check if Asterisk is already running. If it is, then bug out, because
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# starting safe_asterisk when Asterisk is running is very bad.
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VERSION=`${ASTSBINDIR}/asterisk -rx 'core show version'`
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2008-05-30 16:47:24 +00:00
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if [ "`echo $VERSION | cut -c 1-8`" = "Asterisk" ]; then
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2008-05-05 03:25:35 +00:00
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message "Asterisk is already running. $0 will exit now."
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exit 1
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fi
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2006-01-24 21:45:42 +00:00
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# since we're going to change priority and open files limits, we need to be
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# root. if running asterisk as other users, pass that to asterisk on the command
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# line.
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# if we're not root, fall back to standard everything.
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if [ `id -u` != 0 ]
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then
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2007-09-06 16:57:20 +00:00
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echo "Oops. I'm not root. Falling back to standard prio and file max." >&2
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2006-01-24 21:45:42 +00:00
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echo "This is NOT suitable for large systems." >&2
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PRIORITY=0
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2007-09-06 16:57:20 +00:00
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message "safe_asterisk was started by `id -n` (uid `id -u`)."
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2006-01-24 21:45:42 +00:00
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else
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if `echo $OSTYPE | grep linux 2>&1 > /dev/null `
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then
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# maximum number of open files is set to the system maximum divided by two if
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# MAXFILES is not set.
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if [ "$MAXFILES" = "" ]
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then
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# just check if file-max is readable
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if [ -r /proc/sys/fs/file-max ]
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then
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MAXFILES=$(( `cat /proc/sys/fs/file-max` / 2 ))
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fi
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fi
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SYSCTL_MAXFILES="fs.file-max"
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elif `echo $OSTYPE | grep darwin 2>&1 > /dev/null `
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then
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SYSCTL_MAXFILES="kern.maxfiles"
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fi
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if [ "$SYSMAXFILES" != "" ]
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then
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if [ "$SYSCTL_MAXFILES" != "" ]
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then
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sysctl -w $SYSCTL_MAXFILES=$SYSMAXFILES
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fi
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fi
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# set the process's filemax to whatever set above
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ulimit -n $MAXFILES
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fi
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#
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# Let Asterisk dump core
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#
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ulimit -c unlimited
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2002-05-27 23:15:47 +00:00
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#
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# Don't fork when running "safely"
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#
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2002-07-30 14:17:55 +00:00
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ASTARGS=""
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2002-05-27 23:15:47 +00:00
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if [ "$TTY" != "" ]; then
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2003-02-18 18:15:30 +00:00
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if [ -c /dev/tty${TTY} ]; then
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TTY=tty${TTY}
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elif [ -c /dev/vc/${TTY} ]; then
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TTY=vc/${TTY}
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else
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2007-09-06 16:57:20 +00:00
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message "Cannot find specified TTY (${TTY})"
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2003-02-18 18:15:30 +00:00
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exit 1
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fi
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2003-05-07 22:33:55 +00:00
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ASTARGS="${ASTARGS} -vvvg"
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2002-05-27 23:15:47 +00:00
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if [ "$CONSOLE" != "no" ]; then
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ASTARGS="${ASTARGS} -c"
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fi
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fi
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2003-02-18 18:15:30 +00:00
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if [ ! -w ${DUMPDROP} ]; then
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2007-09-06 16:57:20 +00:00
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message "Cannot write to ${DUMPDROP}"
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2003-02-18 18:15:30 +00:00
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exit 1
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fi
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2002-05-27 23:15:47 +00:00
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2007-05-11 16:37:16 +00:00
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#
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# Don't die if stdout/stderr can't be written to
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#
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2007-06-18 17:50:01 +00:00
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trap '' PIPE
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2007-05-11 16:37:16 +00:00
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2006-04-19 21:11:31 +00:00
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#
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# Run scripts to set any environment variables or do any other system-specific setup needed
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#
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if [ -d /etc/asterisk/startup.d ]; then
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for script in /etc/asterisk/startup.d/*.sh; do
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if [ -x ${script} ]; then
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source ${script}
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fi
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done
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fi
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2002-05-27 23:15:47 +00:00
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2002-07-30 14:17:55 +00:00
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run_asterisk()
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{
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while :; do
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if [ "$TTY" != "" ]; then
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2003-02-18 18:15:30 +00:00
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cd /tmp
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stty sane < /dev/${TTY}
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2007-05-11 16:37:16 +00:00
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nice -n $PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS} >& /dev/${TTY} < /dev/${TTY}
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2002-07-30 14:17:55 +00:00
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else
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2003-02-18 18:15:30 +00:00
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cd /tmp
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2007-05-11 16:37:16 +00:00
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nice -n $PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS}
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2002-05-27 23:15:47 +00:00
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fi
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2002-07-30 14:17:55 +00:00
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EXITSTATUS=$?
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2007-09-06 16:57:20 +00:00
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message "Asterisk ended with exit status $EXITSTATUS"
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2002-07-30 14:17:55 +00:00
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if [ "$EXITSTATUS" = "0" ]; then
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# Properly shutdown....
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2007-09-06 16:57:20 +00:00
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message "Asterisk shutdown normally."
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2002-07-30 14:17:55 +00:00
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exit 0
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elif [ $EXITSTATUS -gt 128 ]; then
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let EXITSIGNAL=EXITSTATUS-128
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echo "Asterisk exited on signal $EXITSIGNAL."
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if [ "$NOTIFY" != "" ]; then
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2004-12-01 05:10:32 +00:00
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echo "Asterisk on $MACHINE exited on signal $EXITSIGNAL. Might want to take a peek." | \
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2002-07-30 14:17:55 +00:00
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mail -s "Asterisk Died" $NOTIFY
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2007-09-06 16:57:20 +00:00
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message "Exited on signal $EXITSIGNAL"
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2002-07-30 14:17:55 +00:00
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fi
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2006-08-14 01:13:32 +00:00
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if [ "$EXEC" != "" ]; then
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$EXEC
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fi
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2007-05-11 16:37:16 +00:00
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PID=`cat ${ASTPIDFILE}`
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if [ -f /tmp/core.${PID} ]; then
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mv /tmp/core.${PID} ${DUMPDROP}/core.`hostname`-`date -Iseconds` &
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elif [ -f /tmp/core ]; then
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2003-02-18 18:15:30 +00:00
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mv /tmp/core ${DUMPDROP}/core.`hostname`-`date -Iseconds` &
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fi
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2002-07-30 14:17:55 +00:00
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else
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2007-09-06 16:57:20 +00:00
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message "Asterisk died with code $EXITSTATUS."
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PID=`cat ${ASTPIDFILE}`
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if [ -f /tmp/core.${PID} ]; then
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mv /tmp/core.${PID} ${DUMPDROP}/core.`hostname`-`date -Iseconds` &
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elif [ -f /tmp/core ]; then
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mv /tmp/core ${DUMPDROP}/core.`hostname`-`date -Iseconds` &
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2003-02-18 18:15:30 +00:00
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fi
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2002-07-30 14:17:55 +00:00
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fi
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2007-09-06 16:57:20 +00:00
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message "Automatically restarting Asterisk."
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2006-01-24 21:45:42 +00:00
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sleep $SLEEPSECS
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if [ $KILLALLMPG123 ]
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then
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killall -9 mpg123
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fi
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2002-07-30 14:17:55 +00:00
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done
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}
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run_asterisk &
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