#!/bin/sh
#%# family=auto
#%# capabilities=autoconf

if [ "$1" = "autoconf" ]; then
  if [ -d /sys/kernel/config/target/iscsi/iqn.*/tpgt_1 ]; then
    echo yes
  else
    echo 'no (no iscsi target)'
  fi
  exit 0
fi
if [ "$1" = "config" ]; then
  echo 'graph_title LIO (Write)'
  echo 'graph_category LIO'
  echo 'graph_info Graph LIO (Write)'
  echo 'graph_vlabel Graph LIO (Bytes/sec)'
  echo 'graph_scale yes'
  echo 'graph_args --base 1024 --lower-limit 0'
  echo 'graph_period second'
#  echo 'graph_height 200'
#  echo 'graph_width 400'
  echo 'graph_printf %7.2lf'

  TGT_=
  INI_=
  for i in $(echo /sys/kernel/config/target/iscsi/iqn.*/tpgt_1/acls/iqn.*/*/statistics/scsi_auth_intr/write_mbytes | LANG=C sort)
  do
    TGT=$(echo $i | cut -d/ -f7)
    INI=$(echo $i | cut -d/ -f10)
    LUN=$(echo $i | cut -d/ -f11)
    if [ "$TGT_" = "$TGT" ]; then
      if [ "$INI_" = "$INI" ]; then
        :
      else
        INI_=$INI
        INI_F=$(echo $INI | tr "[:upper:]" "[:lower:]" | sed -e 's/-/_/g' -e 's![^a-z0-9_]!!g')
      fi
    else
       TGT_=$TGT
       TGT_F=$(echo $TGT | tr "[:upper:]" "[:lower:]" | sed -e 's/-/_/g' -e 's![^a-z0-9_]!!g')
       INI_=$INI
       INI_F=$(echo $INI | tr "[:upper:]" "[:lower:]" | sed -e 's/-/_/g' -e 's![^a-z0-9_]!!g')
       for j in $(echo /sys/kernel/config/target/iscsi/$TGT/tpgt_1/lun/*/statistics/scsi_tgt_port/write_mbytes | LANG=C sort)
       do
         LUN_=$(echo $j | cut -d/ -f10)
         echo ${TGT_F}$LUN_.label $(echo $TGT | cut -d: -f2) \($LUN_\) Write
         echo ${TGT_F}$LUN_.cdef ${TGT_F}$LUN_,1048576,\*
         echo ${TGT_F}$LUN_.min 0
         echo ${TGT_F}$LUN_.type DERIVE
       done
    fi
    echo ${TGT_F}${INI_F}$LUN.label $(echo $TGT | cut -d: -f2) - $(echo $INI | cut -d: -f2) \($LUN\) Write
    echo ${TGT_F}${INI_F}$LUN.cdef ${TGT_F}${INI_F}$LUN,1048576,\*
    echo ${TGT_F}${INI_F}$LUN.min 0
    echo ${TGT_F}${INI_F}$LUN.type DERIVE
  done
  exit 0
fi

TGT_=
INI_=
for i in $(echo /sys/kernel/config/target/iscsi/iqn.*/tpgt_1/acls/iqn.*/*/statistics/scsi_auth_intr/write_mbytes | LANG=C sort)
do
  TGT=$(echo $i | cut -d/ -f7)
  INI=$(echo $i | cut -d/ -f10)
  LUN=$(echo $i | cut -d/ -f11)
  if [ "$TGT_" = "$TGT" ]; then
    if [ "$INI_" = "$INI" ]; then
      :
    else
      INI_=$INI
      INI_F=$(echo $INI | tr "[:upper:]" "[:lower:]" | sed -e 's/-/_/g' -e 's![^a-z0-9_]!!g')
    fi
  else
     TGT_=$TGT
     TGT_F=$(echo $TGT | tr "[:upper:]" "[:lower:]" | sed -e 's/-/_/g' -e 's![^a-z0-9_]!!g')
     INI_=$INI
     INI_F=$(echo $INI | tr "[:upper:]" "[:lower:]" | sed -e 's/-/_/g' -e 's![^a-z0-9_]!!g')
     for j in $(echo /sys/kernel/config/target/iscsi/$TGT/tpgt_1/lun/*/statistics/scsi_tgt_port/write_mbytes | LANG=C sort)
     do
       LUN_=$(echo $j | cut -d/ -f10)
       echo -n "${TGT_F}$LUN_.value "
       cat $j
     done
  fi
  echo -n "${TGT_F}${INI_F}$LUN.value "
  cat $i
done

exit 0;