Centre Blaise Pascal » gZFS

#!/bin/bash

# $Id$

# Copyright (C) 2013 Kevin Reverchon, Loïs Taulelle

# This file/program is part of gZFS free software

# See COPYING file for details

#

function restrictedIP {

for IP in $(echo $restricted|sed -e "s/;/ /g")

do

    echo "iqn.$TODAY:$(hostname)-ens-zfs-iscsi-$target $IP" >>/etc/iet/initiators.allow

done

}

function nointeractive {

CHECK_TID=1

while (/bin/grep "tid:$CHECK_TID" /proc/net/iet/volume)

do

   CHECK_TID=$(($CHECK_TID + 1))

done

TODAY=$(date +%Y%m%d%H%M%S)

ietadm --op new --tid=$CHECK_TID --params Name=iqn.$TODAY:$(hostname)-ens-zfs-iscsi-$target

ietadm --op new --tid=$CHECK_TID --lun=$lun --params Path=$devPath,Type=$exportType,IOMode=$iomode

ietadm --op new --tid=$CHECK_TID --user --params=IncomingUser=$login,Password=$passwd

cp /etc/iet/ietd.conf /etc/iet/ietd.conf.$TODAY

echo "" >>/etc/iet/ietd.conf

echo "Target iqn.$TODAY:$(hostname)-ens-zfs-iscsi-$target" >> /etc/iet/ietd.conf

echo "Lun $lun Path=$devPath,Type=$exportType,IOMode=$iomode" >> /etc/iet/ietd.conf

echo "IncomingUser $login $passwd" >>/etc/iet/ietd.conf

echo "Alias $target" >> /etc/iet/ietd.conf

echo "" >> /etc/iet/ietd.conf

echo "" >> /etc/iet/ietd.conf

if [ ! -z $restricted ]

then

   restrictedIP

fi

}

function interactive {

CHECK_TID=1

while (/bin/grep "tid:$CHECK_TID" /proc/net/iet/volume)

do

   CHECK_TID=$(($CHECK_TID + 1))

done

echo "*** iscsi volume name: ***"

while read inputline

do

   NAME_ISCSI=$inputline

   echo "*** Are you sure: $inputline ? (y/n) ***"

   while read inputConfirm

   do

      if [ "$inputConfirm" = "y" ]||[ "$inputConfirm" = "n" ]

      then

         break

      fi

      echo "*** Are you sure: $inputline ? (y/n) ***"

   done

   if [ "$inputConfirm" = "y" ]

   then

      break

   fi

   if [ "$inputConfirm" != "y" ]

   then

      echo "*** iscsi volume name: ***"

   fi

done

echo ""

echo "*** Step I: Initialization of TID and iscsi volume name ***"

TODAY=$(date +%Y%m%d%H%M%S)

ietadm --op new --tid=$CHECK_TID --params Name=iqn.$TODAY:$(hostname)-ens-zfs-iscsi-$NAME_ISCSI

if [ $? -eq 0 ]

then

   echo "*** Path of zfs device (zvol) to export: ***"

   while read -e inputline

   do

      PATH_ZVOL=$inputline

      echo "*** Are you sure: $inputline ? (y/n) ***"

      while read inputConfirm

      do

         if [ "$inputConfirm" = "y" ]||[ "$inputConfirm" = "n" ]

         then

            break

         fi

         echo "*** Are you sure: $inputline ? (y/n) ***"

      done

      if [ "$inputConfirm" = "y" ]

      then

         echo "*** Check if zvol path exists... ***"

         ls -l $PATH_ZVOL

         if [ $? -eq 0 ]

         then

            echo "*** The path is valid... "

            break

         else

            echo "*** Path doesn't exist... "

         fi

      fi

      if [ "$inputConfirm" != "y" ]

      then

         echo "*** Path of zfs device (zvol) to export: ***"

      fi

   done

   echo ""

   echo "*** Step II: initialization of the PATH and iscsi volume LUN ***"

   if [ $? -eq 0 ]

   then

     echo "*** ISCSI export Type (fileio/blockio): ***"

     while read inputline

     do

        TYPE_EXPORT=$inputline

        echo "*** Are you sure: $inputline ? (y/n) ***"

        while read inputConfirm

        do

           if [ "$inputConfirm" = "y" ]||[ "$inputConfirm" = "n" ]

           then

              break

           fi

           echo "*** Are you sure: $inputline ? (y/n) ***"

        done

        if [ "$inputConfirm" = "y" ]

        then

           echo "*** Check if the parameter is valid... ***"

           if [ "$TYPE_EXPORT" = "fileio" ]||[ "$TYPE_EXPORT" = "blockio" ]

           then

              break

           else

              echo "*** ISCSI export Type (fileio/blockio): ***"

           fi

        fi

        if [ "$inputConfirm" != "y" ]

        then

           echo "*** ISCSI export Type (fileio/blockio): ***"

        fi

     done

   echo ""

   echo "*** Step II.B: initialization iscsi IOMode ***"

     echo "*** ISCSI IOMode (ro/wt): ***"

     while read inputline

     do

        iomode=$inputline

        echo "*** Are you sure: $inputline ? (y/n) ***"

        while read inputConfirm

        do

           if [ "$inputConfirm" = "y" ]||[ "$inputConfirm" = "n" ]

           then

              break

           fi

           echo "*** Are you sure: $inputline ? (y/n) ***"

        done

        if [ "$inputConfirm" = "y" ]

        then

           echo "*** Check if the parameter is valid... ***"

           if [ "$iomode" = "ro" ]||[ "$iomode" = "wt" ]

           then

              break

           else

              echo "*** ISCSI IOMode (ro/wt): ***"

           fi

        fi

        if [ "$inputConfirm" != "y" ]

        then

           echo "*** ISCSI IOMode (ro/wt): ***"

        fi

     done

     echo ""

     echo "*** Step III: initialization of export Type and iscsi IOMode ***"

     ietadm --op new --tid=$CHECK_TID --lun=0 --params Path=$PATH_ZVOL,Type=$TYPE_EXPORT,IOMode=$iomode

     if [ $? -eq 0 ]

     then

       echo ""

       echo "*** Step IV: Login and password ***"

       echo "*** Do you enable a restriction login/password: (y/n)"

       while read inputline

       do

           if [ "$inputline" != "y" ] && [ "$inputline" != "n" ]

           then

              echo "*** Do you enable a restriction login/password: (y/n)"

           else

             if [ "$inputline" = "y" ]

             then

                 echo "*** Give a login:"

                 while read inputlogin

                 do

                   if [ "$inputlogin" != "" ]

                   then

                      break

                   else

                      echo "*** Give a login:"

                   fi

                  done

                  echo "*** Give a password:"

                  while read inputpass

                  do

                     if [ "$inputpass" = "" ]

                     then

                        echo "*** Give a password:"

                     else

                        break

                     fi

                  done

                  ietadm --op new --tid=$CHECK_TID --user --params=IncomingUser=$inputlogin,Password=$inputpass

                  if [ $? -eq 0 ]

                  then

                    echo "*** Authentication Configuration [OK]"

                    echo ""

                    echo "*** Step IV: Writting in file ietd.conf ***"

                    echo "*** Backup of /etc/iet/ietd.conf... "

                    cp /etc/iet/ietd.conf /etc/iet/ietd.conf.$TODAY

                    echo "" >>/etc/iet/ietd.conf

                    echo "Target iqn.$TODAY:$(hostname)-ens-zfs-iscsi-$NAME_ISCSI" >> /etc/iet/ietd.conf

                    echo "Lun 0 Path=$PATH_ZVOL,Type=$TYPE_EXPORT,IOMode=$iomode" >> /etc/iet/ietd.conf

                    echo "IncomingUser $inputlogin $inputpass" >>/etc/iet/ietd.conf

                    echo "Alias $NAME_ISCSI" >> /etc/iet/ietd.conf

                    echo "" >> /etc/iet/ietd.conf

                    echo "" >> /etc/iet/ietd.conf

                    echo ""

                    echo "*** Add of ISCSI $NAME_ISCSI Path:$PATH_ZVOL [OK]"

                    echo "*** FIN ***"

                 else

                    echo "/!\\ Authentication Configuration [ERROR] /!\\"

                 fi

                 break

             else

                    echo ""

                    echo "*** Step IV: Writting in file ietd.conf ***"

                    echo "*** Backup of /etc/iet/ietd.conf... "

                    cp /etc/iet/ietd.conf /etc/iet/ietd.conf.$TODAY

                    echo "" >>/etc/iet/ietd.conf

                    echo "Target iqn.$TODAY:$(hostname)-ens-zfs-iscsi-$NAME_ISCSI" >> /etc/iet/ietd.conf

                    echo "Lun 0 Path=$PATH_ZVOL,Type=$TYPE_EXPORT,IOMode=$iomode" >> /etc/iet/ietd.conf

                    echo "IncomingUser $inputlogin $inputpass" >>/etc/iet/ietd.conf

                    echo "Alias $NAME_ISCSI" >> /etc/iet/ietd.conf

                    echo "" >> /etc/iet/ietd.conf

                    echo "" >> /etc/iet/ietd.conf

                    echo ""

                    echo "*** Add of ISCSI $NAME_ISCSI Path:$PATH_ZVOL [OK]"

                    echo "*** END ***"

                    break

             fi

           fi

       done

     else

       echo "*** Problem during step III (initialization of iscsi export Type). Canceled process... ***"

       ietadm --op delete --tid=$CHECK_TID

     fi

   else

      echo "*** Problem during step II (initialization of PATH and iscsi volume LUN). Canceled process... ***"

      ietadm --op delete --tid=$CHECK_TID

   fi

else

   echo "*** Problem during step I (initialization of TID and iscsi volume name). Canceled process... ***"

   ietadm --op delete --tid=$CHECK_TID

fi

}

function usage {

echo "syntax: " 1>&2

echo "add-iscsi-volume [OPTIONS]" 1>&2

echo "" 1>&2

echo "OPTIONS :" 1>&2

echo "-h : display this message" 1>&2

echo "-d : path device to iscsi export" 1>&2

echo "-T : export type (Only fileio or blockio)" 1>&2

echo "-L : lun (Only numeric values)" 1>&2

echo "-o : IO Mode : ro (Read Only) or wt (Read Write)" 1>&2

echo "-l : login if you want a CHAP authentication" 1>&2

echo "-p : password if you want a CHAP authentication" 1>&2

echo "-R : Specify a list of restricted IP (Separated by a ;)" 1>&2

echo "-t : name of zfs volume (This field is used to generate alias name iscsi)" 1>&2

echo "-i : interactive mode (This option is not compatible with others)" 1>&2

}

while getopts "id:T:L:o:l:p:R:t:h" OPTION

do

     case $OPTION in

         h)

             usage

             exit 1

             ;;

         d)

            devPath=$OPTARG

            ;;

         T)

            exportType=$OPTARG

            ;;

         L)

            lun=$OPTARG

            ;;

         o)

            iomode=$OPTARG

            ;;

         l)

            login=$OPTARG

            ;;

         p)

            passwd=$OPTARG

            ;;

         R)

            restricted=$OPTARG

            ;;

         t)

            target=$OPTARG

            target=$(echo ${target//\//-})

            ;;

         i)

            interactive

            exit 0

            ;;

     esac

done

if [[ -z $devPath ]] || [[ -z $exportType ]] || [[ -z $lun ]] || [[ -z $iomode ]] || [[ -z $target ]]

then

     usage

     exit 1

fi

nointeractive