ba196edbd2
once it is lost, all data is gone. Option '-B none' can by used to prevent backup. Option '-B path' can be used to backup metadata to a different file than the default, which is /var/backups/<prov>.eli. The 'geli init' command also prints backup file location and gives short procedure how to restore metadata. The 'geli setkey' command now warns that even after passphrase change or keys update there could be version of the master key encrypted with old keys/passphrase in the backup file. Add regression tests to verify that new functionality works as expected. Update other regression tests so they don't create backup files. Reviewed by: keramida, rink Dedicated to: a friend who lost 400GB of his live by accidentally overwritting geli metadata MFC after: 2 weeks
58 lines
1.7 KiB
Bash
58 lines
1.7 KiB
Bash
#!/bin/sh
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# $FreeBSD$
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base=`basename $0`
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no=45
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sectors=100
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keyfile=`mktemp /tmp/$base.XXXXXX` || exit 1
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echo "1..220"
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i=1
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for cipher in aes:0 aes:128 aes:192 aes:256 \
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3des:0 3des:192 \
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blowfish:0 blowfish:128 blowfish:160 blowfish:192 blowfish:224 \
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blowfish:256 blowfish:288 blowfish:320 blowfish:352 blowfish:384 \
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blowfish:416 blowfish:448 \
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camellia:0 camellia:128 camellia:192 camellia:256; do
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ealgo=${cipher%%:*}
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keylen=${cipher##*:}
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for secsize in 512 1024 2048 4096 8192; do
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rnd=`mktemp /tmp/$base.XXXXXX` || exit 1
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mdconfig -a -t malloc -s `expr $secsize \* $sectors + 512`b -u $no || exit 1
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dd if=/dev/random of=${keyfile} bs=512 count=16 >/dev/null 2>&1
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geli init -B none -e $ealgo -l $keylen -P -K $keyfile -s $secsize md${no} 2>/dev/null
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geli attach -p -k $keyfile md${no}
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secs=`diskinfo /dev/md${no}.eli | awk '{print $4}'`
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dd if=/dev/random of=${rnd} bs=${secsize} count=${secs} >/dev/null 2>&1
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dd if=${rnd} of=/dev/md${no}.eli bs=${secsize} count=${secs} 2>/dev/null
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md_rnd=`dd if=${rnd} bs=${secsize} count=${secs} 2>/dev/null | md5`
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md_ddev=`dd if=/dev/md${no}.eli bs=${secsize} count=${secs} 2>/dev/null | md5`
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md_edev=`dd if=/dev/md${no} bs=${secsize} count=${secs} 2>/dev/null | md5`
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if [ ${md_rnd} = ${md_ddev} ]; then
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echo "ok $i - ealgo=${ealgo} keylen=${keylen} sec=${secsize}"
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else
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echo "not ok $i - ealgo=${ealgo} keylen=${keylen} sec=${secsize}"
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fi
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i=$((i+1))
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if [ ${md_rnd} != ${md_edev} ]; then
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echo "ok $i - ealgo=${ealgo} keylen=${keylen} sec=${secsize}"
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else
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echo "not ok $i - ealgo=${ealgo} keylen=${keylen} sec=${secsize}"
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fi
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i=$((i+1))
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geli detach md${no}
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rm -f $rnd
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mdconfig -d -u $no
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done
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done
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rm -f $keyfile
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