usr/src/cmd/iscsid/iscsi-initiator

   1 #!/sbin/sh
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22
  23 #
  24 # Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  25 #
  26
  27 #
  28 # Start/stop iscsi initiator service
  29 #
  30 . /lib/svc/share/smf_include.sh
  31
  32 #       checkmessage "fsck_device | mount_point"
  33 #
  34 # Simple auxilary routine to the shell function checkfs. Prints out
  35 # instructions for a manual file system check before entering the shell.
  36 #
  37 checkmessage() {
  38         echo "" > /dev/console
  39         if [ "$1" != "" ] ; then
  40                 echo "WARNING - Unable to repair one or more \c" \
  41                         > /dev/console
  42                 echo "of the following filesystem(s):" > /dev/console
  43                 echo "\t$1" > /dev/console
  44         else
  45                 echo "WARNING - Unable to repair one or more filesystems." \
  46                         > /dev/console
  47         fi
  48         echo "Run fsck manually (fsck filesystem...)." > /dev/console
  49         echo "" > /dev/console
  50 }
  51
  52 #
  53 #       checkfs raw_device fstype mountpoint
  54 #
  55 # Check the file system specified. The return codes from fsck have the
  56 # following meanings.
  57 #        0 - file system is unmounted and okay
  58 #       32 - file system is unmounted and needs checking (fsck -m only)
  59 #       33 - file system is already mounted
  60 #       34 - cannot stat device
  61 #       36 - uncorrectable errors detected - terminate normally (4.1 code 8)
  62 #       37 - a signal was caught during processing (4.1 exit 12)
  63 #       39 - uncorrectable errors detected - terminate rightaway (4.1 code 8)
  64 #       40 - for root, same as 0 (used by rcS to remount root)
  65 #
  66 checkfs() {
  67         /usr/sbin/fsck -F $2 -m $1  >/dev/null 2>&1
  68
  69         if [ $? -ne 0 ]
  70         then
  71                 # Determine fsck options by file system type
  72                 case "$2" in
  73                 ufs)    foptions="-o p"
  74                         ;;
  75                 *)      foptions="-y"
  76                         ;;
  77                 esac
  78
  79                 echo "The "$3" file system ("$1") is being checked."
  80                 /usr/sbin/fsck -F $2 ${foptions} $1
  81
  82                 case $? in
  83                 0|40)   # file system OK
  84                         ;;
  85
  86                 *)      # couldn't fix the file system
  87                         echo "/usr/sbin/fsck failed with exit code "$?"."
  88                         checkmessage "$1"
  89                         ;;
  90                 esac
  91         fi
  92 }
  93
  94
  95 mount_iscsi() {
  96         err=0
  97         iscsilist=""
  98         exec < /etc/vfstab
  99         while  read special fsckdev mountp fstype fsckpass automnt mntopts; do
 100                 case $special in
 101                         '#'* | '' )     # Ignore comments, empty lines.
 102                                         continue
 103                                         ;;
 104                 '-')            # Ignore "no-action" lines.
 105                                         continue
 106                                         ;;
 107                 esac
 108                 if [ "$automnt" != "iscsi" ]; then
 109                         continue
 110                 fi
 111                 if [ "$fstype" = "-" ]; then
 112                         echo "iscsi-initiator: FSType of iscsi LUN \c" 1>&2
 113                         echo "$special cannot be identified" 1>&2
 114                         continue
 115                 fi
 116
 117                 #
 118                 # Ignore entries already mounted
 119                 #
 120                 /usr/bin/grep " $mountp " /etc/mnttab >/dev/null \
 121                 2>&1 && continue
 122
 123                 #
 124                 # Can't fsck if no fsckdev is specified
 125                 #
 126                 if [ "$fsckdev" = "-" ]; then
 127                         iscsilist="$iscsilist $mountp"
 128                         continue
 129                 fi
 130
 131                 #
 132                 # fsck everything else:
 133                 #
 134                 # fsck -m simply returns true if the filesystem is
 135                 # suitable for mounting.
 136                 #
 137                 /usr/sbin/fsck -m -F $fstype $fsckdev >/dev/null 2>&1
 138                 case $? in
 139                 0|40)   iscsilist="$iscsilist $mountp"
 140                         continue
 141                         ;;
 142                 32)     checkfs $fsckdev $fstype $mountp
 143                         iscsilist="$iscsilist $mountp"
 144                         continue
 145                         ;;
 146                 33)     # already mounted
 147                         echo "$special already mounted"
 148                         ;;
 149                 34)     # bogus special device
 150                         echo "Cannot stat $fsckdev - ignoring"
 151                         err=1
 152                         ;;
 153                 *)      # uncorrectable errors
 154                         echo "$fsckdev uncorrectable error"
 155                         err=1
 156                         ;;
 157                 esac
 158         done
 159
 160         [ -z "$iscsilist" ] || /sbin/mount -a $iscsilist
 161         for iscsilun in $iscsilist
 162         do
 163                 /usr/bin/grep " $iscsilun       " /etc/mnttab >/dev/null 2>&1
 164                 if [ $? -ne 0 ]; then
 165                         echo "Fail to mount $iscsilun"
 166                         err=1
 167                 fi
 168         done
 169         return $err
 170 }
 171
 172 umount_iscsi () {
 173         #
 174         # Generate iscsi mountp list from /etc/vfstab
 175         exec < /etc/vfstab
 176         while  read special fsckdev mountp fstype fsckpass automnt mntopts; do
 177                 case $special in
 178                         '#'* | '')      continue;;  # Ignore comments,
 179                                                     # empty lines.
 180                         '-')            continue;;  # Ignore "no-action lines.
 181                 esac
 182                 if [ "$automnt" != "iscsi" ]; then
 183                         continue
 184                 fi
 185                 /usr/bin/grep " $mountp " /etc/mnttab >/dev/null 2>&1
 186                 if [ $? -ne 0 ]; then
 187                         continue
 188                 fi
 189                 iscsilist="$iscsilist $mountp"
 190         done
 191
 192         if [ -n "$iscsilist" ]; then
 193                 umount -a $iscsilist 1>&2
 194                 rc=$?
 195         else
 196                 rc=0;
 197         fi
 198         return $rc
 199 }
 200
 201 case "$1" in
 202 'start')
 203         /usr/bin/pgrep -P 1 -x iscsid
 204         if [ $? -ne 0 ]; then
 205                 /lib/svc/method/iscsid
 206         fi
 207         if [ $? -eq 0 ]; then
 208                 delay=60
 209                 while [ $delay -gt 0 ]; do
 210                         delay=`expr $delay - 1`
 211                         mount_iscsi
 212                         if [ $? -eq 1 ]; then
 213                                 if [ $delay -gt 0 ]; then
 214                                         sleep 1
 215                                         continue
 216                                 else
 217                                         echo "iscsi-initiator: mount iscsi \c"
 218                                         echo "lun in /etc/vfstab fail."
 219                                         umount_iscsi
 220                                         exit $SMF_EXIT_ERR_CONFIG
 221                                 fi
 222                         else
 223                                 exit $SMF_EXIT_OK
 224                         fi
 225                 done
 226         else
 227                 exit $?
 228         fi
 229         ;;
 230
 231 'stop')
 232         umount_iscsi
 233         /usr/bin/pkill -P 1 -x iscsid
 234         exit 0
 235         ;;
 236
 237 *)
 238         echo "Usage: $0 { start | stop }"
 239         exit 1
 240         ;;
 241 esac
 242 exit $SMF_EXIT_OK
 243