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-rwxr-xr-xtest/units/testsuite-54.sh146
1 files changed, 146 insertions, 0 deletions
diff --git a/test/units/testsuite-54.sh b/test/units/testsuite-54.sh
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+#!/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