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author | Lennart Poettering <lennart@poettering.net> | 2022-08-19 11:26:49 +0200 |
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committer | Lennart Poettering <lennart@poettering.net> | 2022-09-08 16:34:27 +0200 |
commit | 7c46b19718b990e9fa188faccb6f8b69529d5936 (patch) | |
tree | 23ee63326a8e5518ab5ac3c264b1b35649db4867 /test/units/testsuite-70.sh | |
parent | 75a9681ec07bee537d037843781a9ee539e1b7c3 (diff) | |
download | systemd-7c46b19718b990e9fa188faccb6f8b69529d5936.tar.gz |
TEST-70-TPM2: add test for new signed TPM2 PCR policies
Diffstat (limited to 'test/units/testsuite-70.sh')
-rwxr-xr-x | test/units/testsuite-70.sh | 61 |
1 files changed, 60 insertions, 1 deletions
diff --git a/test/units/testsuite-70.sh b/test/units/testsuite-70.sh index 1f626ee62f..e2219e89d3 100755 --- a/test/units/testsuite-70.sh +++ b/test/units/testsuite-70.sh @@ -57,6 +57,8 @@ env PASSWORD=passphrase systemd-cryptenroll --tpm2-device=auto --tpm2-pcrs=0+7 $ tpm2_pcrextend 0:sha256=0000000000000000000000000000000000000000000000000000000000000000 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && exit 1 +rm $img + if [[ -e /usr/lib/systemd/systemd-measure ]]; then echo HALLO > /tmp/tpmdata1 echo foobar > /tmp/tpmdata2 @@ -69,8 +71,65 @@ if [[ -e /usr/lib/systemd/systemd-measure ]]; then EOF /usr/lib/systemd/systemd-measure calculate --linux=/tmp/tpmdata1 --initrd=/tmp/tpmdata2 --bank=sha1 --bank=sha256 --bank=sha384 --bank=sha512 | cmp - /tmp/result + + cat >/tmp/result.json <<EOF +{"sha1":[{"pcr":11,"hash":"5177e4ad69db92192c10e5f80402bf81bfec8a81"}],"sha256":[{"pcr":11,"hash":"37b48bd0b222394dbe3cceff2fca4660c4b0a90ae9369ec90b42f14489989c13"}],"sha384":[{"pcr":11,"hash":"5573f9b2caf55b1d0a6a701f890662d682af961899f0419cf1e2d5ea4a6a68c1f25bd4f5b8a0865eeee82af90f5cb087"}],"sha512":[{"pcr":11,"hash":"961305d7e9981d6606d1ce97b3a9a1f92610cac033e9c39064895f0e306abc1680463d55767bd98e751eae115bdef3675a9ee1d29ed37da7885b1db45bb2555b"}]} +EOF + + /usr/lib/systemd/systemd-measure calculate --linux=/tmp/tpmdata1 --initrd=/tmp/tpmdata2 --bank=sha1 --bank=sha256 --bank=sha384 --bank=sha512 -j | diff -u - /tmp/result.json +else + echo "/usr/lib/systemd/systemd-measure not found, skipping PCR policy test case" +fi + +if [ -e /usr/lib/systemd/systemd-measure ] && \ + [ -f /sys/class/tpm/tpm0/pcr-sha1/11 ] && \ + [ -f /sys/class/tpm/tpm0/pcr-sha256/11 ]; then + # Generate key pair + openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:2048 -out "/tmp/pcrsign-private.pem" + openssl rsa -pubout -in "/tmp/pcrsign-private.pem" -out "/tmp/pcrsign-public.pem" + + # Sign current PCR state with it + /usr/lib/systemd/systemd-measure sign --current --bank=sha1 --bank=sha256 --private-key="/tmp/pcrsign-private.pem" --public-key="/tmp/pcrsign-public.pem" | tee "/tmp/pcrsign.sig" + dd if=/dev/urandom of=/tmp/pcrtestdata bs=1024 count=64 + systemd-creds encrypt /tmp/pcrtestdata /tmp/pcrtestdata.encrypted --with-key=host+tpm2-with-public-key --tpm2-public-key="/tmp/pcrsign-public.pem" + systemd-creds decrypt /tmp/pcrtestdata.encrypted - --tpm2-signature="/tmp/pcrsign.sig" | cmp - /tmp/pcrtestdata + + # Invalidate PCR, decrypting should fail now + tpm2_pcrextend 11:sha256=0000000000000000000000000000000000000000000000000000000000000000 + systemd-creds decrypt /tmp/pcrtestdata.encrypted - --tpm2-signature="/tmp/pcrsign.sig" > /dev/null && { echo 'unexpected success'; exit 1; } + + # Sign new PCR state, decrypting should work now. + /usr/lib/systemd/systemd-measure sign --current --bank=sha1 --bank=sha256 --private-key="/tmp/pcrsign-private.pem" --public-key="/tmp/pcrsign-public.pem" > "/tmp/pcrsign.sig2" + systemd-creds decrypt /tmp/pcrtestdata.encrypted - --tpm2-signature="/tmp/pcrsign.sig2" | cmp - /tmp/pcrtestdata + + # Now, do the same, but with a cryptsetup binding + truncate -s 20M $img + cryptsetup luksFormat -q --pbkdf pbkdf2 --pbkdf-force-iterations 1000 --use-urandom $img /tmp/passphrase + systemd-cryptenroll --unlock-key-file=/tmp/passphrase --tpm2-device=auto --tpm2-public-key="/tmp/pcrsign-public.pem" --tpm2-signature="/tmp/pcrsign.sig2" $img + + # Check if we can activate that (without the token module stuff) + 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 + SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=0 /usr/lib/systemd/systemd-cryptsetup detach test-volume2 + + # Check if we can activate that (and a second time with the the token module stuff enabled) + 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 + SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE=1 /usr/lib/systemd/systemd-cryptsetup detach test-volume2 + + # After extending the PCR things should fail + tpm2_pcrextend 11:sha256=0000000000000000000000000000000000000000000000000000000000000000 + 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; } + 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; } + + # But once we sign the current PCRs, we should be able to unlock again + /usr/lib/systemd/systemd-measure sign --current --bank=sha1 --bank=sha256 --private-key="/tmp/pcrsign-private.pem" --public-key="/tmp/pcrsign-public.pem" > "/tmp/pcrsign.sig3" + 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 + /usr/lib/systemd/systemd-cryptsetup detach test-volume2 + 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 + /usr/lib/systemd/systemd-cryptsetup detach test-volume2 + + rm $img else - echo "/usr/lib/systemd/systemd-measure not found, skipping the test case" + echo "/usr/lib/systemd/systemd-measure or PCR sysfs files not found, skipping signed PCR policy test case" fi echo OK >/testok |