#!/bin/sh
#----------------------------------------------------------------------------
# /etc/rc.d/rc499.muninnode - configuration/startup of munin-node
#----------------------------------------------------------------------------

case $OPT_MUNINNODE in
yes)
    begin_script MUNINNODE "starting munin-node ..."

    PLUGINS=""

    if [ "$MUNINNODE_DF" = "yes" ]
    then
      PLUGINS="$PLUGINS df"
    fi 
    if [ "$MUNINNODE_DFABS" = "yes" ]
    then
      PLUGINS="$PLUGINS df_abs"
    fi 
    if [ "$MUNINNODE_CPU" = "yes" ]
    then
      PLUGINS="$PLUGINS cpu"
    fi 
    if [ "$MUNINNODE_IF" = "yes" ]
    then
      PLUGINS="$PLUGINS if_"
    fi 
    if [ "$MUNINNODE_IFERR" = "yes" ]
    then
      PLUGINS="$PLUGINS if_err_"
    fi 
    if [ "$MUNINNODE_LOAD" = "yes" ]
    then
      PLUGINS="$PLUGINS load"
    fi 
    if [ "$MUNINNODE_MEM" = "yes" ]
    then
      PLUGINS="$PLUGINS memory"
    fi 
    if [ "$MUNINNODE_PROC" = "yes" ]
    then
      PLUGINS="$PLUGINS processes"
    fi 
    if [ "$MUNINNODE_SWAP" = "yes" ]
    then
      PLUGINS="$PLUGINS swap"
    fi 
    if [ "$MUNINNODE_NETSTAT" = "yes" ]
    then
      PLUGINS="$PLUGINS netstat"
    fi 
    if [ "$MUNINNODE_UPTIME" = "yes" ]
    then
      PLUGINS="$PLUGINS uptime"
    fi 
    if [ "$MUNINNODE_INT" = "yes" ]
    then
      PLUGINS="$PLUGINS interrupts"
    fi 
    if [ "$MUNINNODE_IRQ" = "yes" ]
    then
      PLUGINS="$PLUGINS irqstats"
    fi 
    if [ "$MUNINNODE_ALIX" = "yes" ]
    then
      PLUGINS="$PLUGINS alix"
    fi
 

    echo "# runtime config munin-node" > /var/run/muninnode.conf
    for idx in $(seq 1 $MUNINNODE_IFUSER_N)
    do
      PLUGINS="$PLUGINS ifuser$idx"
      eval caption='$MUNINNODE_IFUSER_'$idx'_CAPTION'
      eval total='$MUNINNODE_IFUSER_'$idx'_TOTAL'
      eval devices='$MUNINNODE_IFUSER_'$idx'_DEVICE_N'
      { echo "config_ifuser$idx() {"
        echo "echo \"graph_title $caption\""
        echo "echo \"graph_category network\""
        echo "echo \"graph_vlabel bits in (-) / out (+)\""
        echo "echo \"graph_args --base 1000\""
      } >> /var/run/muninnode.conf
      if [ "$total" = "yes" ]
      then
        echo "echo graph_total Total" >> /var/run/muninnode.conf
      fi
      for idy in $(seq 1 $devices)
      do
        eval caption='$MUNINNODE_IFUSER_'$idx'_DEVICE_'$idy'_CAPTION'
        { echo "echo \"down$idy.label $caption\""
          echo "echo \"down$idy.type ABSOLUTE\""
          echo "echo \"down$idy.min 0\""
          echo "echo \"down$idy.graph no\""
          echo "echo \"up$idy.label $caption\""
          echo "echo \"up$idy.type ABSOLUTE\""
          echo "echo \"up$idy.min 0\""
          echo "echo \"up$idy.negative down$idy\""
          echo "echo \"up$idy.label $caption\""
        } >> /var/run/muninnode.conf
      done
      { echo "}"
        echo "fetch_ifuser$idx() {"
      } >>/var/run/muninnode.conf
      for idy in $(seq 1 $devices)
      do
        eval device='$MUNINNODE_IFUSER_'$idx'_DEVICE_'$idy'_NAME'
        { echo "IINFO=\$(grep \"$device:\" /proc/net/dev | cut -d: -f2 | sed -e 's/  / /g')"
          echo "echo \"down$idy.value \$(echo \$IINFO | cut -d\  -f1)\""
          echo "echo \"up$idy.value \$(echo \$IINFO | cut -d\  -f9)\""
        } >> /var/run/muninnode.conf
      done
      echo "}" >>/var/run/muninnode.conf
    done
    for idx in $(seq 1 $MUNINNODE_AVRNET_N)
    do
      PLUGINS="$PLUGINS avrnet$idx"
      eval caption='$MUNINNODE_AVRNET_'$idx'_CAPTION'
      eval vlabel='$MUNINNODE_AVRNET_'$idx'_LABEL'
      eval host='$MUNINNODE_AVRNET_'$idx'_HOST'
      eval netport='$MUNINNODE_AVRNET_'$idx'_NETPORT'
      eval channels='$MUNINNODE_AVRNET_'$idx'_CHANNEL_N'
      { echo "config_avrnet$idx() {"
        echo "echo \"graph_title $caption\""
        echo "echo \"graph_category sensors\""
        echo "echo \"graph_vlabel $vlabel\""
        echo "echo \"graph_args --base 1000\""
      } >> /var/run/muninnode.conf
      for idy in $(seq 1 $channels)
      do
        eval caption='$MUNINNODE_AVRNET_'$idx'_CHANNEL_'$idy'_CAPTION'
        { echo "echo \"avrnet$idy.label $caption\""
          echo "echo \"avrnet$idy.type DERIVE\""
          echo "echo \"avrnet$idy.min 0\""
        } >> /var/run/muninnode.conf
      done
      { echo "}"
        echo "fetch_avrnet$idx() {"
      } >>/var/run/muninnode.conf
      for idy in $(seq 1 $channels)
      do
        eval port='$MUNINNODE_AVRNET_'$idx'_CHANNEL_'$idy'_PORT'
        eval ioffset='$MUNINNODE_AVRNET_'$idx'_CHANNEL_'$idy'_INPUTOFFSET'
        eval poffset='$MUNINNODE_AVRNET_'$idx'_CHANNEL_'$idy'_PLOTOFFSET'
        eval gain='$MUNINNODE_AVRNET_'$idx'_CHANNEL_'$idy'_GAIN'
        { echo "VAL=\$(echo \"get$port\" | netcat -q 3 \"$host\" $netport)"
          echo "VAL=\$(echo \"($VAL-$ioffset)/$gain+$poffset\" | bc)"
          echo "echo \"avrnet$idy.value \$VAL\""
         } >> /var/run/muninnode.conf
      done
      echo "}" >>/var/run/muninnode.conf
    done

    echo "PLUGINS=\"$PLUGINS\"" >> /var/run/muninnode.conf

    echo "munin  $MUNINNODE_PORT/tcp" >> /etc/services
    echo "munin	 stream    tcp nowait root /usr/sbin/munin-node" >> /etc/inetd.conf

    # inetd wird durch /etc/rc.d/rc998.base gestartet

    end_script
    ;;
esac