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https://github.com/systemd/systemd.git
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152 lines
9.6 KiB
Bash
Executable File
152 lines
9.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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set -ex
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set -o pipefail
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export SYSTEMD_LOG_LEVEL=debug
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# Prepare fresh disk image
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img="/var/tmp/test.img"
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truncate -s 20M $img
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echo -n passphrase >/tmp/passphrase
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cryptsetup luksFormat -q --pbkdf pbkdf2 --pbkdf-force-iterations 1000 --use-urandom $img /tmp/passphrase
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# Unlocking via keyfile
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systemd-cryptenroll --unlock-key-file=/tmp/passphrase --tpm2-device=auto $img
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# Enroll unlock with default PCR policy
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env PASSWORD=passphrase systemd-cryptenroll --tpm2-device=auto $img
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/usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1
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/usr/lib/systemd/systemd-cryptsetup detach test-volume
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# Check with wrong PCR
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tpm2_pcrextend 7:sha256=0000000000000000000000000000000000000000000000000000000000000000
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/usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && { echo 'unexpected success'; exit 1; }
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# Enroll unlock with PCR+PIN policy
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systemd-cryptenroll --wipe-slot=tpm2 $img
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env PASSWORD=passphrase NEWPIN=123456 systemd-cryptenroll --tpm2-device=auto --tpm2-with-pin=true $img
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env PIN=123456 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1
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/usr/lib/systemd/systemd-cryptsetup detach test-volume
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# Check failure with wrong PIN
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env PIN=123457 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && { echo 'unexpected success'; exit 1; }
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# Check LUKS2 token plugin unlock (i.e. without specifying tpm2-device=auto)
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if cryptsetup --help | grep -q 'LUKS2 external token plugin support is compiled-in' && \
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[ -f "$(cryptsetup --help | sed -n -r 's/.*LUKS2 external token plugin path: (.*)\./\1/p')/libcryptsetup-token-systemd-tpm2.so" ]; then
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env PIN=123456 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - headless=1
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/usr/lib/systemd/systemd-cryptsetup detach test-volume
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# Check failure with wrong PIN
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env PIN=123457 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - headless=1 && { echo 'unexpected success'; exit 1; }
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else
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echo 'cryptsetup has no LUKS2 token plugin support, skipping'
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fi
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# Check failure with wrong PCR (and correct PIN)
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tpm2_pcrextend 7:sha256=0000000000000000000000000000000000000000000000000000000000000000
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env PIN=123456 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && { echo 'unexpected success'; exit 1; }
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# Enroll unlock with PCR 0+7
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systemd-cryptenroll --wipe-slot=tpm2 $img
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env PASSWORD=passphrase systemd-cryptenroll --tpm2-device=auto --tpm2-pcrs=0+7 $img
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/usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1
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/usr/lib/systemd/systemd-cryptsetup detach test-volume
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# Check with wrong PCR 0
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tpm2_pcrextend 0:sha256=0000000000000000000000000000000000000000000000000000000000000000
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/usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && exit 1
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rm $img
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if [[ -e /usr/lib/systemd/systemd-measure ]]; then
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echo HALLO > /tmp/tpmdata1
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echo foobar > /tmp/tpmdata2
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cat >/tmp/result <<EOF
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11:sha1=5177e4ad69db92192c10e5f80402bf81bfec8a81
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11:sha256=37b48bd0b222394dbe3cceff2fca4660c4b0a90ae9369ec90b42f14489989c13
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11:sha384=5573f9b2caf55b1d0a6a701f890662d682af961899f0419cf1e2d5ea4a6a68c1f25bd4f5b8a0865eeee82af90f5cb087
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11:sha512=961305d7e9981d6606d1ce97b3a9a1f92610cac033e9c39064895f0e306abc1680463d55767bd98e751eae115bdef3675a9ee1d29ed37da7885b1db45bb2555b
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EOF
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/usr/lib/systemd/systemd-measure calculate --linux=/tmp/tpmdata1 --initrd=/tmp/tpmdata2 --bank=sha1 --bank=sha256 --bank=sha384 --bank=sha512 --phase=: | cmp - /tmp/result
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cat >/tmp/result.json <<EOF
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{"sha1":[{"pcr":11,"hash":"5177e4ad69db92192c10e5f80402bf81bfec8a81"}],"sha256":[{"pcr":11,"hash":"37b48bd0b222394dbe3cceff2fca4660c4b0a90ae9369ec90b42f14489989c13"}],"sha384":[{"pcr":11,"hash":"5573f9b2caf55b1d0a6a701f890662d682af961899f0419cf1e2d5ea4a6a68c1f25bd4f5b8a0865eeee82af90f5cb087"}],"sha512":[{"pcr":11,"hash":"961305d7e9981d6606d1ce97b3a9a1f92610cac033e9c39064895f0e306abc1680463d55767bd98e751eae115bdef3675a9ee1d29ed37da7885b1db45bb2555b"}]}
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EOF
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/usr/lib/systemd/systemd-measure calculate --linux=/tmp/tpmdata1 --initrd=/tmp/tpmdata2 --bank=sha1 --bank=sha256 --bank=sha384 --bank=sha512 --phase=: -j | diff -u - /tmp/result.json
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cat >/tmp/result <<EOF
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11:sha1=6765ee305db063040c454d32697d922b3d4f232b
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11:sha256=21c49c1242042649e09c156546fd7d425ccc3c67359f840507b30be4e0f6f699
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11:sha384=08d0b003a134878eee552070d51d58abe942f457ca85704131dd36f73728e7327ca837594bc9d5ac7de818d02a3d5dd2
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11:sha512=65120f6ebc04b156421c6f3d543b2fad545363d9ca61c514205459e9c0e0b22e09c23605eae5853e38458ef3ca54e087168af8d8a882a98d220d9391e48be6d0
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EOF
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/usr/lib/systemd/systemd-measure calculate --linux=/tmp/tpmdata1 --initrd=/tmp/tpmdata2 --bank=sha1 --bank=sha256 --bank=sha384 --bank=sha512 --phase=foo | cmp - /tmp/result
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cat >/tmp/result.json <<EOF
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{"sha1":[{"phase":"foo","pcr":11,"hash":"6765ee305db063040c454d32697d922b3d4f232b"}],"sha256":[{"phase":"foo","pcr":11,"hash":"21c49c1242042649e09c156546fd7d425ccc3c67359f840507b30be4e0f6f699"}],"sha384":[{"phase":"foo","pcr":11,"hash":"08d0b003a134878eee552070d51d58abe942f457ca85704131dd36f73728e7327ca837594bc9d5ac7de818d02a3d5dd2"}],"sha512":[{"phase":"foo","pcr":11,"hash":"65120f6ebc04b156421c6f3d543b2fad545363d9ca61c514205459e9c0e0b22e09c23605eae5853e38458ef3ca54e087168af8d8a882a98d220d9391e48be6d0"}]}
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EOF
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/usr/lib/systemd/systemd-measure calculate --linux=/tmp/tpmdata1 --initrd=/tmp/tpmdata2 --bank=sha1 --bank=sha256 --bank=sha384 --bank=sha512 --phase=foo -j | diff -u - /tmp/result.json
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rm /tmp/result /tmp/result.json
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else
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echo "/usr/lib/systemd/systemd-measure not found, skipping PCR policy test case"
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fi
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if [ -e /usr/lib/systemd/systemd-measure ] && \
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[ -f /sys/class/tpm/tpm0/pcr-sha1/11 ] && \
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[ -f /sys/class/tpm/tpm0/pcr-sha256/11 ]; then
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# Generate key pair
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openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:2048 -out "/tmp/pcrsign-private.pem"
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openssl rsa -pubout -in "/tmp/pcrsign-private.pem" -out "/tmp/pcrsign-public.pem"
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# Sign current PCR state with it
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/usr/lib/systemd/systemd-measure sign --current --bank=sha1 --bank=sha256 --private-key="/tmp/pcrsign-private.pem" --public-key="/tmp/pcrsign-public.pem" --phase=: | tee "/tmp/pcrsign.sig"
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dd if=/dev/urandom of=/tmp/pcrtestdata bs=1024 count=64
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systemd-creds encrypt /tmp/pcrtestdata /tmp/pcrtestdata.encrypted --with-key=host+tpm2-with-public-key --tpm2-public-key="/tmp/pcrsign-public.pem"
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systemd-creds decrypt /tmp/pcrtestdata.encrypted - --tpm2-signature="/tmp/pcrsign.sig" | cmp - /tmp/pcrtestdata
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# Invalidate PCR, decrypting should fail now
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tpm2_pcrextend 11:sha256=0000000000000000000000000000000000000000000000000000000000000000
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systemd-creds decrypt /tmp/pcrtestdata.encrypted - --tpm2-signature="/tmp/pcrsign.sig" > /dev/null && { echo 'unexpected success'; exit 1; }
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# Sign new PCR state, decrypting should work now.
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/usr/lib/systemd/systemd-measure sign --current --bank=sha1 --bank=sha256 --private-key="/tmp/pcrsign-private.pem" --public-key="/tmp/pcrsign-public.pem" --phase=: > "/tmp/pcrsign.sig2"
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systemd-creds decrypt /tmp/pcrtestdata.encrypted - --tpm2-signature="/tmp/pcrsign.sig2" | cmp - /tmp/pcrtestdata
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# Now, do the same, but with a cryptsetup binding
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truncate -s 20M $img
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cryptsetup luksFormat -q --pbkdf pbkdf2 --pbkdf-force-iterations 1000 --use-urandom $img /tmp/passphrase
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systemd-cryptenroll --unlock-key-file=/tmp/passphrase --tpm2-device=auto --tpm2-public-key="/tmp/pcrsign-public.pem" --tpm2-signature="/tmp/pcrsign.sig2" $img
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# Check if we can activate that (without the token module stuff)
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SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=0 /usr/lib/systemd/systemd-cryptsetup attach test-volume2 $img - tpm2-device=auto,tpm2-signature="/tmp/pcrsign.sig2",headless=1
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SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=0 /usr/lib/systemd/systemd-cryptsetup detach test-volume2
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# Check if we can activate that (and a second time with the the token module stuff enabled)
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SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=1 /usr/lib/systemd/systemd-cryptsetup attach test-volume2 $img - tpm2-device=auto,tpm2-signature="/tmp/pcrsign.sig2",headless=1
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SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=1 /usr/lib/systemd/systemd-cryptsetup detach test-volume2
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# After extending the PCR things should fail
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tpm2_pcrextend 11:sha256=0000000000000000000000000000000000000000000000000000000000000000
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SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=0 /usr/lib/systemd/systemd-cryptsetup attach test-volume2 $img - tpm2-device=auto,tpm2-signature="/tmp/pcrsign.sig2",headless=1 && { echo 'unexpected success'; exit 1; }
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SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=1 /usr/lib/systemd/systemd-cryptsetup attach test-volume2 $img - tpm2-device=auto,tpm2-signature="/tmp/pcrsign.sig2",headless=1 && { echo 'unexpected success'; exit 1; }
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# But once we sign the current PCRs, we should be able to unlock again
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/usr/lib/systemd/systemd-measure sign --current --bank=sha1 --bank=sha256 --private-key="/tmp/pcrsign-private.pem" --public-key="/tmp/pcrsign-public.pem" --phase=: > "/tmp/pcrsign.sig3"
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SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=0 /usr/lib/systemd/systemd-cryptsetup attach test-volume2 $img - tpm2-device=auto,tpm2-signature="/tmp/pcrsign.sig3",headless=1
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/usr/lib/systemd/systemd-cryptsetup detach test-volume2
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SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=1 /usr/lib/systemd/systemd-cryptsetup attach test-volume2 $img - tpm2-device=auto,tpm2-signature="/tmp/pcrsign.sig3",headless=1
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/usr/lib/systemd/systemd-cryptsetup detach test-volume2
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rm $img
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else
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echo "/usr/lib/systemd/systemd-measure or PCR sysfs files not found, skipping signed PCR policy test case"
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fi
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echo OK >/testok
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exit 0
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