angepasste version von cryptdisks eingefuegt
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spielspass/cryptdisks
Executable file
228
spielspass/cryptdisks
Executable file
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#! /bin/sh
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#
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# cryptodisks Now that all block devices should be available, setup
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# encrypted block devices
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#
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# this script was slightly modified by age-at-systemausfall-dot-org,
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# it now also executes mount commands. search for "MOD".
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# it probably won't work with losetup (just devmapper)!
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CRYPTCMD=/sbin/cryptsetup
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DEVMAPCMD=/sbin/dmsetup
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TABFILE=/etc/crypttab
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MAPPER=/dev/mapper
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test -x $CRYPTCMD || exit 0
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test -x $DEVMAPCMD || exit 0
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test -f $TABFILE || exit 0
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[ -r /etc/default/cryptdisks ] && . /etc/default/cryptdisks
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case "$CRYPTDISKS_ENABLE" in
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[Nn]*)
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exit 0
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;;
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esac
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$DEVMAPCMD mknodes
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case "$1" in
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start)
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echo -n "Starting crypto disks:"
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egrep -v "^[[:space:]]*(#|$)" $TABFILE | while read dst src key opt; do
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echo -ne "\n\t $dst"
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if [ -b $MAPPER/$dst ]; then
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### test if mapped but not mounted (probably wrong passphrase)
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if [ `mount | grep -c /dev/mapper/$dst` -lt 1 ]; then
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echo -n " (removing)"
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$CRYPTCMD remove $dst
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else
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echo -n " (running)"
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fi
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fi
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if [ ! -b $MAPPER/$dst ]; then
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###
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#else
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echo -n " (starting)"
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if [ "x$key" != "x" ] && [ "x$key" != "xnone" ]; then
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INTERACTIVE="no"
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if test -e "$key" ; then
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MODE=`ls -l $key | sed 's/^....\(......\).*/\1/'`
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OWNER=`ls -l $key | sed 's/^[^ ]* *[^ ]* *\([^ ]*\).*/\1/'`
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if test "$MODE" != "------" && \
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test "$key" != "/dev/urandom" && \
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test "$key" != "/dev/hwrandom" && \
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test "$key" != "/dev/random"; then
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echo " - INSECURE MODE FOR $key" >&2
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fi
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if test $OWNER != root; then
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echo " - INSECURE OWNER FOR $key" >&2
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fi
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else
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echo " - Keyfile for $dst not found, skipping" >&2
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continue
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fi
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else
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INTERACTIVE="yes"
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echo "..."
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fi
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PARAMS=""
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MAKESWAP=""
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MAKETMP=""
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SKIP=""
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# Parse the options field, convert to cryptsetup parameters
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# and contruct the command line
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while test "x$opt" != "x" ; do
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ARG=`echo $opt | sed "s/,.*//"`
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opt=${opt##$ARG}
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opt=${opt##,}
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PARAM=`echo $ARG | sed "s/=.*//"`
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VALUE=${ARG##$PARAM=}
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case "$PARAM" in
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readonly)
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PARAM=-r
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VALUE=""
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;;
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cipher)
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PARAM=-c
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if test "x$VALUE" = "x" ; then
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echo " - no value for cipher option, skipping" >&2
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SKIP="yes"
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fi
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;;
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size)
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PARAM=-s
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if test "x$VALUE" = "x" ; then
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echo " - no value for size option, skipping" >&2
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SKIP="yes"
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fi
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;;
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hash)
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PARAM=-h
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if test "x$VALUE" = "x" ; then
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echo " - no value for hash option, skipping" >&2
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SKIP=yes
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fi
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;;
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verify)
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PARAM=-y
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VALUE=""
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;;
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swap)
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MAKESWAP=yes
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PARAM=""
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VALUE=""
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;;
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tmp)
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MAKETMP=yes
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PARAM=""
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VALUE=""
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esac
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PARAMS="$PARAMS $PARAM $VALUE"
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done
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# Set up loopback devices
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if test -f "$src" ; then
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test -d /sys/block/loop0 || modprobe loop || SKIP=yes
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LOOP_ID=
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for i in 0 1 2 3 4 5 6 7 ; do
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if test "x`cat /sys/block/loop$i/size`" = "x0" ; then
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LOOP_ID=$i
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break
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fi
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done
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if test "x$LOOP_ID" = "x" ; then
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SKIP=yes
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else
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losetup /dev/loop$LOOP_ID $src || SKIP=yes
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src=/dev/loop$LOOP_ID
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fi
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fi
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if test "x$SKIP" = "xyes" ; then
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continue
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fi
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if test "x$INTERACTIVE" = "xyes" ; then
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if [ -e $src ];then
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$CRYPTCMD $PARAMS create $dst $src <&1
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else
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echo -en "\t\t$src not found"
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fi
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else
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if [ -e $src ];then
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$CRYPTCMD $PARAMS -d $key create $dst $src
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else
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echo -en "\t\t$src not found"
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fi
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fi
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if test "x$MAKESWAP" = "xyes" && test -b $MAPPER/$dst; then
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mkswap $MAPPER/$dst 2>/dev/null >/dev/null
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fi
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if test "x$MAKETMP" = "xyes" && test -b $MAPPER/$dst; then
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mke2fs $MAPPER/$dst 2>/dev/null >/dev/null
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fi
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fi
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done
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echo "."
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### MOD: mount stuff von age
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partitions=`dmsetup ls | cut -f1`
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for i in $partitions; do
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if [ `mount | grep -c /dev/mapper/$i` -lt 1 ]; then
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echo -en "\t$i (mounting)"
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mount /dev/mapper/$i > /dev/null 2>&1
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if [ $(mount | grep -c /dev/mapper/$i) -lt 1 ]; then
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echo -en " (\"mount /dev/mapper/$i\" failed)"
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fi
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echo ""
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fi
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done
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###
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;;
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stop)
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echo -n "Stopping crypto disks:"
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egrep -v "^[[:space:]]*(#|$)" $TABFILE | while read dst src key; do
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echo -ne "\n\t $dst"
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if test -b $MAPPER/$dst; then
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if $DEVMAPCMD info $dst | grep -q '^Open count: *0$'; then
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dev=`$DEVMAPCMD table $dst | sed 's/^.* \([0-9]*:[0-9]*\) .*/\1/'`
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major=`echo $dev | sed 's/:.*//'`
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minor=`echo $dev | sed 's/.*://'`
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$CRYPTCMD remove $dst
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if test -b $MAPPER/$dst; then
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echo -n " (busy) (still decrypted)"
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else
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echo -n " (stopped)"
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fi
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# Detach loopback device, if attached
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if test -f $src -a $major -eq 7; then
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losetup -d /dev/loop$minor
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fi
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else
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echo -n " (busy) (still decrypted)"
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fi
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else
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echo -n " (stopped)"
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fi
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done
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echo "."
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;;
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restart|reload|force-reload)
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$0 stop
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$0 start
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;;
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retry)
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$0 start
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;;
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*)
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echo "Usage: $0 {start|stop|restart|reload|force-reload|retry}"
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;;
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esac
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