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Diffstat (limited to '')
| -rwxr-xr-x | test/units/testsuite-54.sh | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/test/units/testsuite-54.sh b/test/units/testsuite-54.sh new file mode 100755 index 0000000..3be5076 --- /dev/null +++ b/test/units/testsuite-54.sh @@ -0,0 +1,146 @@ +#!/usr/bin/env bash +# SPDX-License-Identifier: LGPL-2.1-or-later +# shellcheck disable=SC2016 +set -eux + +systemd-analyze log-level debug + +# Verify that the creds are properly loaded and we can read them from the service's unpriv user +systemd-run -p LoadCredential=passwd:/etc/passwd \ + -p LoadCredential=shadow:/etc/shadow \ + -p SetCredential=dog:wuff \ + -p DynamicUser=1 \ + --unit=test-54-unpriv.service \ + --wait \ + --pipe \ + cat '${CREDENTIALS_DIRECTORY}/passwd' '${CREDENTIALS_DIRECTORY}/shadow' '${CREDENTIALS_DIRECTORY}/dog' \ + >/tmp/ts54-concat +(cat /etc/passwd /etc/shadow && echo -n wuff) | cmp /tmp/ts54-concat +rm /tmp/ts54-concat + +# Test that SetCredential= acts as fallback for LoadCredential= +echo piff > /tmp/ts54-fallback +[ "$(systemd-run -p LoadCredential=paff:/tmp/ts54-fallback -p SetCredential=paff:poff --pipe --wait systemd-creds cat paff)" = "piff" ] +rm /tmp/ts54-fallback +[ "$(systemd-run -p LoadCredential=paff:/tmp/ts54-fallback -p SetCredential=paff:poff --pipe --wait systemd-creds cat paff)" = "poff" ] + +if systemd-detect-virt -q -c ; then + expected_credential=mynspawncredential + expected_value=strangevalue +elif [ -d /sys/firmware/qemu_fw_cfg/by_name ]; then + # Verify that passing creds through kernel cmdline works + [ "$(systemd-creds --system cat kernelcmdlinecred)" = "uff" ] + + # And that it also works via SMBIOS + [ "$(systemd-creds --system cat smbioscredential)" = "magicdata" ] + [ "$(systemd-creds --system cat binarysmbioscredential)" = "magicbinarydata" ] + + # If we aren't run in nspawn, we are run in qemu + systemd-detect-virt -q -v + expected_credential=myqemucredential + expected_value=othervalue + + # Verify that writing a sysctl via the kernel cmdline worked + [ "$(cat /proc/sys/kernel/domainname)" = "sysctltest" ] + + # Verify that creating a user via sysusers via the kernel cmdline worked + grep -q ^credtestuser: /etc/passwd + + # Verify that writing a file via tmpfiles worked + [ "$(cat /tmp/sourcedfromcredential)" = "tmpfilessecret" ] + [ "$(cat /etc/motd.d/50-provision.conf)" = "hello" ] + [ "$(cat /etc/issue.d/50-provision.conf)" = "welcome" ] +else + echo "qemu_fw_cfg support missing in kernel. Sniff!" + expected_credential="" + expected_value="" +fi + +if [ "$expected_credential" != "" ] ; then + # If this test is run in nspawn a credential should have been passed to us. See test/TEST-54-CREDS/test.sh + [ "$(systemd-creds --system cat "$expected_credential")" = "$expected_value" ] + + # Test that propagation from system credential to service credential works + [ "$(systemd-run -p LoadCredential="$expected_credential" --pipe --wait systemd-creds cat "$expected_credential")" = "$expected_value" ] + + # Check it also works, if we rename it while propagating it + [ "$(systemd-run -p LoadCredential=miau:"$expected_credential" --pipe --wait systemd-creds cat miau)" = "$expected_value" ] + + # Combine it with a fallback (which should have no effect, given the cred should be passed down) + [ "$(systemd-run -p LoadCredential="$expected_credential" -p SetCredential="$expected_credential":zzz --pipe --wait systemd-creds cat "$expected_credential")" = "$expected_value" ] + + # This should succeed + systemd-run -p AssertCredential="$expected_credential" -p Type=oneshot true + + # And this should fail + (! systemd-run -p AssertCredential="undefinedcredential" -p Type=oneshot true) +fi + +# Verify that the creds are immutable +(! systemd-run -p LoadCredential=passwd:/etc/passwd \ + -p DynamicUser=1 \ + --unit=test-54-immutable-touch.service \ + --wait \ + touch '${CREDENTIALS_DIRECTORY}/passwd') +(! systemd-run -p LoadCredential=passwd:/etc/passwd \ + -p DynamicUser=1 \ + --unit=test-54-immutable-rm.service \ + --wait \ + rm '${CREDENTIALS_DIRECTORY}/passwd') + +# Check directory-based loading +mkdir -p /tmp/ts54-creds/sub +echo -n a >/tmp/ts54-creds/foo +echo -n b >/tmp/ts54-creds/bar +echo -n c >/tmp/ts54-creds/baz +echo -n d >/tmp/ts54-creds/sub/qux +systemd-run -p LoadCredential=cred:/tmp/ts54-creds \ + -p DynamicUser=1 \ + --unit=test-54-dir.service \ + --wait \ + --pipe \ + cat '${CREDENTIALS_DIRECTORY}/cred_foo' \ + '${CREDENTIALS_DIRECTORY}/cred_bar' \ + '${CREDENTIALS_DIRECTORY}/cred_baz' \ + '${CREDENTIALS_DIRECTORY}/cred_sub_qux' >/tmp/ts54-concat +cmp /tmp/ts54-concat <(echo -n abcd) +rm /tmp/ts54-concat +rm -rf /tmp/ts54-creds + +# Now test encrypted credentials (only supported when built with OpenSSL though) +if systemctl --version | grep -q -- +OPENSSL ; then + echo -n $RANDOM >/tmp/test-54-plaintext + systemd-creds encrypt --name=test-54 /tmp/test-54-plaintext /tmp/test-54-ciphertext + systemd-creds decrypt --name=test-54 /tmp/test-54-ciphertext | cmp /tmp/test-54-plaintext + + systemd-run -p LoadCredentialEncrypted=test-54:/tmp/test-54-ciphertext \ + --wait \ + --pipe \ + cat '${CREDENTIALS_DIRECTORY}/test-54' | cmp /tmp/test-54-plaintext + + echo -n $RANDOM >/tmp/test-54-plaintext + systemd-creds encrypt --name=test-54 /tmp/test-54-plaintext /tmp/test-54-ciphertext + systemd-creds decrypt --name=test-54 /tmp/test-54-ciphertext | cmp /tmp/test-54-plaintext + + systemd-run -p SetCredentialEncrypted=test-54:"$(cat /tmp/test-54-ciphertext)" \ + --wait \ + --pipe \ + cat '${CREDENTIALS_DIRECTORY}/test-54' | cmp /tmp/test-54-plaintext + + rm /tmp/test-54-plaintext /tmp/test-54-ciphertext +fi + +# https://github.com/systemd/systemd/issues/27275 +systemd-run -p DynamicUser=yes -p 'LoadCredential=os:/etc/os-release' \ + -p 'ExecStartPre=true' \ + -p 'ExecStartPre=systemd-creds cat os' \ + --unit=test-54-exec-start.service \ + --wait \ + --pipe \ + true | cmp /etc/os-release + +systemd-analyze log-level info + +echo OK >/testok + +exit 0 |