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systemd/test/units/testsuite-70.sh
Grigori Goronzy fd8b924820 cryptenroll: add tests for TPM2 unlocking
Add tests for enrolling and unlocking. Various cases are tested:

- Default PCR 7 policy w/o PIN, good and bad cases (wrong PCR)
- PCR 7 + PIN policy, good and bad cases (wrong PCR, wrong PIN)
- Non-default PCR 0+7 policy w/o PIN, good and bad cases (wrong PCR 0)

v2: rename test, fix tss2 library installation, fix CI failures
v3: fix ppc64, load module
2022-03-15 21:17:00 +01:00

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#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -ex
export SYSTEMD_LOG_LEVEL=debug
# Prepare fresh disk image
img="/var/tmp/test.img"
dd if=/dev/zero of=$img bs=1024k count=20 status=none
echo -n passphrase >/tmp/passphrase
cryptsetup luksFormat -q --use-urandom $img /tmp/passphrase
# Enroll unlock with default PCR policy
env PASSWORD=passphrase systemd-cryptenroll --tpm2-device=auto $img
/usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1
/usr/lib/systemd/systemd-cryptsetup detach test-volume
# Check with wrong PCR
tpm2_pcrextend 7:sha256=0000000000000000000000000000000000000000000000000000000000000000
/usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && { echo 'unexpected success'; exit 1; }
# Enroll unlock with PCR+PIN policy
systemd-cryptenroll --wipe-slot=tpm2 $img
env PASSWORD=passphrase NEWPIN=123456 systemd-cryptenroll --tpm2-device=auto --tpm2-with-pin=true $img
env PIN=123456 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1
/usr/lib/systemd/systemd-cryptsetup detach test-volume
# Check failure with wrong PIN
env PIN=123457 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && { echo 'unexpected success'; exit 1; }
# Check failure with wrong PCR (and correct PIN)
tpm2_pcrextend 7:sha256=0000000000000000000000000000000000000000000000000000000000000000
env PIN=123456 /usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && { echo 'unexpected success'; exit 1; }
# Enroll unlock with PCR 0+7
systemd-cryptenroll --wipe-slot=tpm2 $img
env PASSWORD=passphrase systemd-cryptenroll --tpm2-device=auto --tpm2-pcrs=0+7 $img
/usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1
/usr/lib/systemd/systemd-cryptsetup detach test-volume
# Check with wrong PCR 0
tpm2_pcrextend 0:sha256=0000000000000000000000000000000000000000000000000000000000000000
/usr/lib/systemd/systemd-cryptsetup attach test-volume $img - tpm2-device=auto,headless=1 && exit 1
echo OK >/testok
exit 0