autosshd/etc/rc.d/init.d/autosshd

   1 #!/bin/sh
   2 #
   3 # autosshd      autossh system service
   4 #
   5 # chkconfig: 2345 30 60
   6 #
   7 # description: autosshd run autossh as system service
   8 #
   9 # processname: autossh
  10 #
  11
  12 # Do not load RH compatibility interface.
  13 WITHOUT_RC_COMPAT=1
  14
  15 # Source function library.
  16 . /etc/init.d/functions
  17
  18 # Autosshd variables
  19 AUTOSSH_LOGLEVEL=4
  20 AUTOSSH_POLL=120
  21 AUTOSSH_GATETIME=0
  22 AUTOSSH_DEBUG=yes.
  23 #FIX call in cycle for all conf
  24 init_autossh(){
  25     AUTOSSH_PIDFILE=${PIDFILEDIR}/$(basename $1 .conf).pid
  26     AUTOSSH_LOCKFILE=$LOCKFILEDIR/$(basename $1 .conf).lck
  27     AUTOSSH_LOGFILE=/var/lib/autosshd/$(basename $1 .conf).log
  28 }
  29
  30 # Source networking configuration.
  31 SourceIfNotEmpty /etc/sysconfig/network
  32
  33 # AutoSSHDaemon configuration
  34 SYSCONFIGFILE="/etc/sysconfig/autosshd"
  35 SourceIfNotEmpty $SYSCONFIGFILE
  36
  37
  38 ###========= Functions =========
  39 #===== help message =====
  40 help()
  41 {
  42     echo "
  43 Usage: ${0##*/} ACTION [CHANNEL]
  44 ACTION  - requested action of all or given AutoSSH channel
  45 CHANNEL - optional name of AutoSSH channel (with corresponding
  46           CHANNEL.* files in $CONFIGDIR)
  47
  48 Usefull actions is:
  49 start       - start all configured channels except listed
  50               in MANUAL variable in $CONFIGDIR/CHANNEL.conf file
  51 stop        - stop all running channels
  52 restart     - restart channels that are configured for autostart
  53 reload      - restart only running channels
  54 list        - print list of configured channels
  55 status      - print status of running channels
  56 help        - print this message.
  57 "
  58     RETVAL=1
  59     return $RETVAL
  60 }
  61
  62 get_channels_list()
  63 {
  64     /bin/ls $CONFIGDIR/*.conf 2>/dev/null
  65 }
  66
  67 list_channels()
  68 {
  69     LIST=$(get_channels_list)
  70     echo "Configured channels:"
  71         for config in $LIST; do
  72             SourceIfNotEmpty $config
  73             echo "   `basename $config .conf`. Manual: ${MANUAL} "
  74         done
  75     return 0
  76 }
  77
  78 running_channels()
  79 {
  80     LIST=`/bin/ls $PIDFILEDIR/*.pid 2>/dev/null`
  81     CHANNELS=""
  82     for proc in $LIST; do
  83         CHANNELS="$CHANNELS`basename $proc .pid` "
  84     done
  85     return 0
  86 }
  87
  88 do_run_one()
  89 {
  90     if [ -f $1 ]; then
  91         SourceIfNotEmpty $1
  92
  93         # skip if in manual mode
  94         is_no $MANUAL || return 0
  95
  96         start_daemon --pidfile "$AUTOSSH_PIDFILE" --make-pidfile --lockfile "$AUTOSSH_LOCKFILE" --user $AUTOSSHUSER --name autossh  --displayname "autossh to ${HOST}" -- autossh ${AUTOSSH_OPTIONS}
  97         RETVAL=$?
  98         sleep 1
  99
 100         # strange hack: overwrite pidfile??
 101         #ps ax | grep -v grep | grep ${AUTOSSH_PORT} | awk {'print $1'} > "$AUTOSSH_PIDFILE"
 102         return $RETVAL
 103     else
 104         echo "Configuration file $1 not found"
 105         RETVAL=1
 106         return $RETVAL
 107     fi
 108 }
 109
 110 do_stop_one()
 111 {
 112     if [ -f $1 ]; then
 113         SourceIfNotEmpty $1
 114         if [ -s $AUTOSSH_PIDFILE ]; then
 115             #ParentPID=${PIDFILEDIR}/${HOST}.pid
 116             #ps ax | grep -v grep | grep "parent of $(cat $AUTOSSH_PIDFILE)" | awk {'print $1'} > $ParentPID
 117             stop_daemon --pidfile "$AUTOSSH_PIDFILE" --lockfile "$AUTOSSH_LOCKFILE" --expect-user $AUTOSSHUSER --name autossh --displayname "autossh to ${HOST}" -- autossh
 118             RETVAL=$?
 119             rm -f "$AUTOSSH_PIDFILE"
 120             #rm -f "$ParentPID"
 121             return $RETVAL
 122         else
 123             msg_not_running "autossh for `basename $1 .conf`"
 124             echo
 125         fi
 126     else
 127         echo "Configuration file $1 not found"
 128         RETVAL=1
 129         return $RETVAL
 130     fi
 131 }
 132
 133
 134 show_status()
 135 {
 136         RETVAL=0
 137         [ -n "$CHANNELS" ] || running_channels
 138
 139         if [ -z "$CHANNELS" ]; then
 140                 msg_not_running autossh
 141                 echo
 142                 RETVAL=1
 143         else
 144                 for CHANNEL in $CHANNELS; do
 145                     status --pidfile "$PIDFILEDIR/$CHANNEL.pid" --lockfile "$LOCKFILEDIR/$CHANNEL.lck" --expect-user $AUTOSSHUSER --name ssh --displayname "autossh to $CHANNEL" -- autossh
 146                     RETVAL=$(( $RETVAL + $? ))
 147                 done
 148         fi
 149         return $RETVAL
 150 }
 151
 152 start()
 153 {
 154     # run only listed channels
 155     if [ -n "$CHANNELS" ] ; then
 156         for i in $CHANNELS; do
 157             init_autossh $i.conf
 158             do_run_one $CONFIGDIR/$i.conf
 159         done
 160         return 0
 161     fi
 162
 163     # run all scheduled channels
 164     CHANNELS=$(get_channels_list)
 165     for config in $CHANNELS; do
 166         SourceIfNotEmpty $config
 167         init_autossh $config
 168         do_run_one $config
 169     done
 170     return 0
 171 }
 172
 173 stop()
 174 {
 175     [ -n "$CHANNELS" ] || running_channels
 176
 177     for config in $CHANNELS; do
 178         SourceIfNotEmpty $config
 179         init_autossh $config
 180         do_stop_one $CONFIGDIR/$config.conf
 181     done
 182     return 0
 183 }
 184
 185 init_autossh
 186
 187 ###====== Main =====
 188 RETVAL=0
 189
 190 OP=$1
 191 shift
 192 CHANNELS="$@"
 193
 194 is_yes "$NETWORKING" || return 0
 195
 196 # See how we were called.
 197 case "$OP" in
 198         start)
 199             start
 200             ;;
 201         stop)
 202             stop
 203             ;;
 204         reload|condreload)
 205             stop
 206             sleep 2
 207             start
 208             ;;
 209         restart)
 210             stop
 211             sleep 2
 212             start
 213             ;;
 214         status)
 215             show_status
 216             ;;
 217         list)
 218             list_channels
 219             ;;
 220         help)
 221             help
 222             ;;
 223         *)
 224                 msg_usage "${0##*/} {start|stop|reload|restart|status|list|help}"
 225                 RETVAL=1
 226 esac
 227
 228 exit $RETVAL