etc/rc.d/gbde

   1 #!/bin/sh
   2 #
   3 # This file, originally written by Garrett A. Wollman, is in the public
   4 # domain.
   5 #
   6 # $FreeBSD$
   7 #
   8
   9 # PROVIDE: disks
  10 # KEYWORD: nojail
  11
  12 . /etc/rc.subr
  13
  14 name="gbde"
  15 start_precmd="find_gbde_devices start"
  16 stop_precmd="find_gbde_devices stop"
  17 start_cmd="gbde_start"
  18 stop_cmd="gbde_stop"
  19
  20 find_gbde_devices()
  21 {
  22         case "${gbde_devices-auto}" in
  23         [Aa][Uu][Tt][Oo])
  24                 gbde_devices=""
  25                 ;;
  26         *)
  27                 return 0
  28                 ;;
  29         esac
  30
  31         case "$1" in
  32         start)
  33                 fstab="/etc/fstab"
  34                 ;;
  35         stop)
  36                 fstab=$(mktemp /tmp/mtab.XXXXXX)
  37                 mount -p >${fstab}
  38                 ;;
  39         esac
  40
  41         #
  42         # We can't use "mount -p | while ..." because when a shell loop
  43         # is the target of a pipe it executes in a subshell, and so can't
  44         # modify variables in the script.
  45         #
  46         while read device mountpt type options dump pass; do
  47                 case "$device" in
  48                 *.bde)
  49                         # Ignore swap devices
  50                         case "$type" in
  51                         swap)
  52                                 continue
  53                                 ;;
  54                         esac
  55
  56                         case "$options" in
  57                         *noauto*)
  58                                 if checkyesno gbde_autoattach_all; then
  59                                         gbde_devices="${gbde_devices} ${device}"
  60                                 fi
  61                                 ;;
  62                         *)
  63                                 gbde_devices="${gbde_devices} ${device}"
  64                                 ;;
  65                         esac
  66                         ;;
  67                 esac
  68         done <${fstab}
  69
  70         case "$1" in
  71         stop)
  72                 rm -f ${fstab}
  73                 ;;
  74         esac
  75
  76         return 0
  77 }
  78
  79 gbde_start()
  80 {
  81         for device in $gbde_devices; do
  82                 parent=${device%.bde}
  83                 parent=${parent#/dev/}
  84                 parent_=`ltr ${parent} '/' '_'`
  85                 eval "lock=\${gbde_lock_${parent_}-\"${gbde_lockdir}/${parent_}.lock\"}"
  86                 if [ -e "/dev/${parent}" -a ! -e "/dev/${parent}.bde" ]; then
  87                         echo "Configuring Disk Encryption for ${parent}."
  88
  89                         count=1
  90                         while [ ${count} -le ${gbde_attach_attempts} ]; do
  91                                 if [ -e "${lock}" ]; then
  92                                         gbde attach ${parent} -l ${lock}
  93                                 else
  94                                         gbde attach ${parent}
  95                                 fi
  96                                 if [ -e "/dev/${parent}.bde" ]; then
  97                                         break
  98                                 fi
  99                                 echo "Attach failed; attempt ${count} of ${gbde_attach_attempts}."
 100                                 count=$((${count} + 1))
 101                         done
 102                 fi
 103         done
 104 }
 105
 106 gbde_stop()
 107 {
 108         for device in $gbde_devices; do
 109                 parent=${device%.bde}
 110                 parent=${parent#/dev/}
 111                 if [ -e "/dev/${parent}.bde" ]; then
 112                         umount "/dev/${parent}.bde" 2>/dev/null
 113                         gbde detach "${parent}"
 114                 fi
 115         done
 116 }
 117
 118 load_rc_config $name
 119 run_rc_command "$1"