Merging upstream version 256.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 744 insertions, 0 deletions

diff --git a/test/units/TEST-35-LOGIN.sh b/test/units/TEST-35-LOGIN.sh
new file mode 100755
index 0000000..78e0c1e
--- /dev/null
+++ b/test/units/TEST-35-LOGIN.sh
@@ -0,0 +1,744 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# shellcheck source=test/units/test-control.sh
+. "$(dirname "$0")"/test-control.sh
+# shellcheck source=test/units/util.sh
+. "$(dirname "$0")"/util.sh
+
+cleanup_test_user() (
+    set +ex
+
+    pkill -u "$(id -u logind-test-user)"
+    sleep 1
+    pkill -KILL -u "$(id -u logind-test-user)"
+    userdel -r logind-test-user
+
+    return 0
+)
+
+setup_test_user() {
+    mkdir -p /var/spool/cron /var/spool/mail
+    useradd -m -s /bin/bash logind-test-user
+    trap cleanup_test_user EXIT
+}
+
+test_write_dropin() {
+    systemctl edit --runtime --stdin systemd-logind.service --drop-in=debug.conf <<EOF
+[Service]
+Environment=SYSTEMD_LOG_LEVEL=debug
+EOF
+
+    # We test "coldplug" (completely stop and start logind) here. So we need to preserve
+    # the fdstore, which might contain session leader pidfds. This is extremely rare use case
+    # and shall not be considered fully supported.
+    # See also: https://github.com/systemd/systemd/pull/30610#discussion_r1440507850
+    systemctl edit --runtime --stdin systemd-logind.service --drop-in=fdstore-preserve.conf <<EOF
+[Service]
+FileDescriptorStorePreserve=yes
+EOF
+
+    systemctl restart systemd-logind.service
+}
+
+testcase_properties() {
+    mkdir -p /run/systemd/logind.conf.d
+
+    cat >/run/systemd/logind.conf.d/kill-user-processes.conf <<EOF
+[Login]
+KillUserProcesses=no
+EOF
+
+    systemctl restart systemd-logind.service
+    assert_eq "$(busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager KillUserProcesses)" "b false"
+
+    cat >/run/systemd/logind.conf.d/kill-user-processes.conf <<EOF
+[Login]
+KillUserProcesses=yes
+EOF
+
+    systemctl restart systemd-logind.service
+    assert_eq "$(busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager KillUserProcesses)" "b true"
+
+    rm -rf /run/systemd/logind.conf.d
+}
+
+testcase_sleep_automated() {
+    assert_eq "$(busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager SleepOperation)" 'as 3 "suspend-then-hibernate" "suspend" "hibernate"'
+
+    mkdir -p /run/systemd/logind.conf.d
+
+    cat >/run/systemd/logind.conf.d/sleep-operations.conf <<EOF
+[Login]
+SleepOperation=suspend hybrid-sleep
+EOF
+
+    systemctl restart systemd-logind.service
+
+    assert_eq "$(busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager SleepOperation)" 'as 2 "hybrid-sleep" "suspend"'
+
+    busctl call org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager CanSleep
+
+    rm -rf /run/systemd/logind.conf.d
+}
+
+testcase_started() {
+    local pid
+
+    systemctl restart systemd-logind.service
+
+    # should start at boot, not with D-BUS activation
+    pid=$(systemctl show systemd-logind.service -p ExecMainPID --value)
+
+    # loginctl should succeed
+    loginctl
+
+    # logind should still be running
+    assert_eq "$(systemctl show systemd-logind.service -p ExecMainPID --value)" "$pid"
+}
+
+wait_suspend() {
+    timeout "${1?}" bash -c "while [[ ! -e /run/suspend.flag ]]; do sleep 1; done"
+    rm /run/suspend.flag
+}
+
+teardown_suspend() (
+    set +eux
+
+    pkill evemu-device
+
+    rm -rf /run/systemd/system/systemd-suspend.service.d
+    systemctl daemon-reload
+
+    rm -f /run/udev/rules.d/70-logindtest-lid.rules
+    udevadm control --reload
+
+    return 0
+)
+
+testcase_suspend_on_lid() {
+    local pid input_name lid_dev
+
+    if systemd-detect-virt --quiet --container; then
+        echo "Skipping suspend test in container"
+        return
+    fi
+    if ! grep -s -q mem /sys/power/state; then
+        echo "suspend not supported on this testbed, skipping"
+        return
+    fi
+    if ! command -v evemu-device >/dev/null; then
+        echo "command evemu-device not found, skipping"
+        return
+    fi
+    if ! command -v evemu-event >/dev/null; then
+        echo "command evemu-event not found, skipping"
+        return
+    fi
+
+    trap teardown_suspend RETURN
+
+    # save pid
+    pid=$(systemctl show systemd-logind.service -p ExecMainPID --value)
+
+    # create fake suspend
+    mkdir -p /run/systemd/system/systemd-suspend.service.d
+    cat >/run/systemd/system/systemd-suspend.service.d/override.conf <<EOF
+[Service]
+ExecStart=
+ExecStart=touch /run/suspend.flag
+EOF
+    systemctl daemon-reload
+
+    # create fake lid switch
+    mkdir -p /run/udev/rules.d
+    cat >/run/udev/rules.d/70-logindtest-lid.rules <<EOF
+SUBSYSTEM=="input", KERNEL=="event*", ATTRS{name}=="Fake Lid Switch", TAG+="power-switch"
+EOF
+    udevadm control --reload
+
+    cat >/run/lidswitch.evemu <<EOF
+# EVEMU 1.2
+# Input device name: "Lid Switch"
+# Input device ID: bus 0x19 vendor 0000 product 0x05 version 0000
+# Supported events:
+#   Event type 0 (EV_SYN)
+#     Event code 0 (SYN_REPORT)
+#     Event code 5 (FF_STATUS_MAX)
+#   Event type 5 (EV_SW)
+#     Event code 0 (SW_LID)
+# Properties:
+N: Fake Lid Switch
+I: 0019 0000 0005 0000
+P: 00 00 00 00 00 00 00 00
+B: 00 21 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 01 00 00 00 00 00 00 00 00
+B: 02 00 00 00 00 00 00 00 00
+B: 03 00 00 00 00 00 00 00 00
+B: 04 00 00 00 00 00 00 00 00
+B: 05 01 00 00 00 00 00 00 00
+B: 11 00 00 00 00 00 00 00 00
+B: 12 00 00 00 00 00 00 00 00
+B: 15 00 00 00 00 00 00 00 00
+B: 15 00 00 00 00 00 00 00 00
+EOF
+
+    evemu-device /run/lidswitch.evemu &
+
+    timeout 20 bash -c 'until grep "^Fake Lid Switch" /sys/class/input/*/device/name; do sleep .5; done'
+    input_name=$(grep -l '^Fake Lid Switch' /sys/class/input/*/device/name || :)
+    if [[ -z "$input_name" ]]; then
+        echo "cannot find fake lid switch." >&2
+        exit 1
+    fi
+    input_name=${input_name%/device/name}
+    lid_dev=/dev/${input_name#/sys/class/}
+    udevadm info --wait-for-initialization=10s "$lid_dev"
+    udevadm settle
+
+    # close lid
+    evemu-event "$lid_dev" --sync --type 5 --code 0 --value 1
+    # need to wait for 30s suspend inhibition after boot
+    wait_suspend 31
+    # open lid again
+    evemu-event "$lid_dev" --sync --type 5 --code 0 --value 0
+
+    # waiting for 30s inhibition time between suspends
+    sleep 30
+
+    # now closing lid should cause instant suspend
+    evemu-event "$lid_dev" --sync --type 5 --code 0 --value 1
+    wait_suspend 2
+    evemu-event "$lid_dev" --sync --type 5 --code 0 --value 0
+
+    assert_eq "$(systemctl show systemd-logind.service -p ExecMainPID --value)" "$pid"
+}
+
+testcase_shutdown() {
+    local pid
+
+    # save pid
+    pid=$(systemctl show systemd-logind.service -p ExecMainPID --value)
+
+    # scheduled shutdown with wall message
+    shutdown 2>&1
+    sleep 5
+    shutdown -c || :
+    # logind should still be running
+    assert_eq "$(systemctl show systemd-logind.service -p ExecMainPID --value)" "$pid"
+
+    # scheduled shutdown without wall message
+    shutdown --no-wall 2>&1
+    sleep 5
+    shutdown -c --no-wall || true
+    assert_eq "$(systemctl show systemd-logind.service -p ExecMainPID --value)" "$pid"
+}
+
+cleanup_session() (
+    set +ex
+
+    local uid s
+
+    uid=$(id -u logind-test-user)
+
+    loginctl disable-linger logind-test-user
+
+    systemctl stop getty@tty2.service
+
+    for s in $(loginctl --no-legend list-sessions | grep -v manager | awk '$3 == "logind-test-user" { print $1 }'); do
+        echo "INFO: stopping session $s"
+        loginctl terminate-session "$s"
+    done
+
+    loginctl terminate-user logind-test-user
+
+    if ! timeout 30 bash -c "while loginctl --no-legend | grep -q logind-test-user; do sleep 1; done"; then
+        echo "WARNING: session for logind-test-user still active, ignoring."
+    fi
+
+    pkill -u "$uid"
+    sleep 1
+    pkill -KILL -u "$uid"
+
+    if ! timeout 30 bash -c "while systemctl is-active --quiet user@${uid}.service; do sleep 1; done"; then
+        echo "WARNING: user@${uid}.service is still active, ignoring."
+    fi
+
+    if ! timeout 30 bash -c "while systemctl is-active --quiet user-runtime-dir@${uid}.service; do sleep 1; done"; then
+        echo "WARNING: user-runtime-dir@${uid}.service is still active, ignoring."
+    fi
+
+    if ! timeout 30 bash -c "while systemctl is-active --quiet user-${uid}.slice; do sleep 1; done"; then
+        echo "WARNING: user-${uid}.slice is still active, ignoring."
+    fi
+
+    rm -rf /run/systemd/system/getty@tty2.service.d
+    systemctl daemon-reload
+
+    return 0
+)
+
+teardown_session() (
+    set +ex
+
+    cleanup_session
+
+    rm -f /run/udev/rules.d/70-logindtest-scsi_debug-user.rules
+    udevadm control --reload
+    rmmod scsi_debug
+
+    return 0
+)
+
+check_session() (
+    set +ex
+
+    local seat session leader_pid
+
+    if [[ $(loginctl --no-legend | grep -v manager | grep -c "logind-test-user") != 1 ]]; then
+        echo "no session or multiple sessions for logind-test-user." >&2
+        return 1
+    fi
+
+    seat=$(loginctl --no-legend | grep -v manager | grep 'logind-test-user *seat' | awk '{ print $4 }')
+    if [[ -z "$seat" ]]; then
+        echo "no seat found for user logind-test-user" >&2
+        return 1
+    fi
+
+    session=$(loginctl --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $1 }')
+    if [[ -z "$session" ]]; then
+        echo "no session found for user logind-test-user" >&2
+        return 1
+    fi
+
+    if ! loginctl session-status "$session" | grep -q "Unit: session-${session}\.scope"; then
+        echo "cannot find scope unit for session $session" >&2
+        return 1
+    fi
+
+    leader_pid=$(loginctl session-status "$session" | awk '$1 == "Leader:" { print $2 }')
+    if [[ -z "$leader_pid" ]]; then
+        echo "cannot found leader process for session $session" >&2
+        return 1
+    fi
+
+    # cgroup v1: "1:name=systemd:/user.slice/..."; unified hierarchy: "0::/user.slice"
+    if ! grep -q -E '(name=systemd|^0:):.*session.*scope' /proc/"$leader_pid"/cgroup; then
+        echo "FAIL: process $leader_pid is not in the session cgroup" >&2
+        cat /proc/self/cgroup
+        return 1
+    fi
+)
+
+create_session() {
+    # login with the test user to start a session
+    mkdir -p /run/systemd/system/getty@tty2.service.d
+    cat >/run/systemd/system/getty@tty2.service.d/override.conf <<EOF
+[Service]
+Type=simple
+ExecStart=
+ExecStart=-/sbin/agetty --autologin logind-test-user --noclear %I $TERM
+Restart=no
+EOF
+    systemctl daemon-reload
+
+    systemctl restart getty@tty2.service
+
+    # check session
+    for i in {1..30}; do
+        (( i > 1 )) && sleep 1
+        check_session && break
+    done
+    check_session
+    assert_eq "$(loginctl --no-legend | grep -v manager | awk '$3=="logind-test-user" { print $7 }')" "tty2"
+}
+
+testcase_sanity_check() {
+    # Exercise basic loginctl options
+
+    if [[ ! -c /dev/tty2 ]]; then
+        echo "/dev/tty2 does not exist, skipping test ${FUNCNAME[0]}."
+        return
+    fi
+
+    trap cleanup_session RETURN
+    create_session
+
+    # Run most of the loginctl commands from a user session to make
+    # the seat/session autodetection work-ish
+    systemd-run --user --pipe --wait -M "logind-test-user@.host" bash -eux <<\EOF
+    loginctl list-sessions
+    loginctl list-sessions -j
+    loginctl list-sessions --json=short
+    loginctl session-status
+    loginctl show-session
+    loginctl show-session -P DelayInhibited
+
+    # We're not in the same session scope, so in this case we need to specify
+    # the session ID explicitly
+    session=$(loginctl --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $1; exit; }')
+    loginctl kill-session --signal=SIGCONT "$session"
+    # FIXME(?)
+    #loginctl kill-session --signal=SIGCONT --kill-whom=leader "$session"
+
+    loginctl list-users
+    loginctl user-status
+    loginctl show-user -a
+    loginctl show-user -P IdleAction
+    loginctl kill-user --signal=SIGCONT ""
+
+    loginctl list-seats
+    loginctl seat-status
+    loginctl show-seat
+    loginctl show-seat -P IdleActionUSec
+EOF
+
+    # Requires root privileges
+    loginctl lock-sessions
+    loginctl unlock-sessions
+    loginctl flush-devices
+}
+
+testcase_session() {
+    local dev
+
+    if systemd-detect-virt --quiet --container; then
+        echo "Skipping ACL tests in container"
+        return
+    fi
+
+    if [[ ! -c /dev/tty2 ]]; then
+        echo "/dev/tty2 does not exist, skipping test ${FUNCNAME[0]}."
+        return
+    fi
+
+    trap teardown_session RETURN
+
+    create_session
+
+    # scsi_debug should not be loaded yet
+    if [[ -d /sys/bus/pseudo/drivers/scsi_debug ]]; then
+        echo "scsi_debug module is already loaded." >&2
+        exit 1
+    fi
+
+    # we use scsi_debug to create new devices which we can put ACLs on
+    # tell udev about the tagging, so that logind can pick it up
+    mkdir -p /run/udev/rules.d
+    cat >/run/udev/rules.d/70-logindtest-scsi_debug-user.rules <<EOF
+SUBSYSTEM=="block", ATTRS{model}=="scsi_debug*", TAG+="uaccess"
+EOF
+    udevadm control --reload
+
+    # coldplug: logind started with existing device
+    systemctl stop systemd-logind.service
+    modprobe scsi_debug
+    timeout 30 bash -c 'until ls /sys/bus/pseudo/drivers/scsi_debug/adapter*/host*/target*/*:*/block 2>/dev/null; do sleep 1; done'
+    dev=/dev/$(ls /sys/bus/pseudo/drivers/scsi_debug/adapter*/host*/target*/*:*/block 2>/dev/null)
+    if [[ ! -b "$dev" ]]; then
+        echo "cannot find suitable scsi block device" >&2
+        exit 1
+    fi
+    udevadm settle
+    udevadm info "$dev"
+
+    # trigger logind and activate session
+    loginctl activate "$(loginctl --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $1 }')"
+
+    # check ACL
+    sleep 1
+    assert_in "user:logind-test-user:rw-" "$(getfacl -p "$dev")"
+
+    # hotplug: new device appears while logind is running
+    rmmod scsi_debug
+    modprobe scsi_debug
+    timeout 30 bash -c 'until ls /sys/bus/pseudo/drivers/scsi_debug/adapter*/host*/target*/*:*/block 2>/dev/null; do sleep 1; done'
+    dev=/dev/$(ls /sys/bus/pseudo/drivers/scsi_debug/adapter*/host*/target*/*:*/block 2>/dev/null)
+    if [[ ! -b "$dev" ]]; then
+        echo "cannot find suitable scsi block device" >&2
+        exit 1
+    fi
+    udevadm settle
+
+    # check ACL
+    sleep 1
+    assert_in "user:logind-test-user:rw-" "$(getfacl -p "$dev")"
+}
+
+teardown_lock_idle_action() (
+    set +eux
+
+    rm -f /run/systemd/logind.conf.d/idle-action-lock.conf
+    systemctl restart systemd-logind.service
+
+    cleanup_session
+
+    return 0
+)
+
+testcase_lock_idle_action() {
+    local ts
+
+    if [[ ! -c /dev/tty2 ]]; then
+        echo "/dev/tty2 does not exist, skipping test ${FUNCNAME[0]}."
+        return
+    fi
+
+    if loginctl --no-legend | grep -v manager | grep -q logind-test-user; then
+        echo >&2 "Session of the 'logind-test-user' is already present."
+        exit 1
+    fi
+
+    trap teardown_lock_idle_action RETURN
+
+    create_session
+
+    journalctl --sync
+    ts="$(date '+%H:%M:%S')"
+
+    mkdir -p /run/systemd/logind.conf.d
+    cat >/run/systemd/logind.conf.d/idle-action-lock.conf <<EOF
+[Login]
+IdleAction=lock
+IdleActionSec=1s
+EOF
+    systemctl restart systemd-logind.service
+
+    # Wait for 35s, in that interval all sessions should have become idle
+    # and "Lock" signal should have been sent out. Then we wrote to tty to make
+    # session active again and next we slept for another 35s so sessions have
+    # become idle again. 'Lock' signal is sent out for each session, we have at
+    # least one session, so minimum of 2 "Lock" signals must have been sent.
+    journalctl --sync
+    set +o pipefail
+    timeout -v 35 journalctl -b -u systemd-logind.service --since="$ts" -n all --follow | grep -m 1 -q 'Sent message type=signal .* member=Lock'
+    set -o pipefail
+
+    # We need to know that a new message was sent after waking up,
+    # so we must track how many happened before sleeping to check we have extra.
+    locks="$(journalctl -b -u systemd-logind.service --since="$ts" | grep -c 'Sent message type=signal .* member=Lock')"
+
+    # Wakeup
+    touch /dev/tty2
+
+    # Wait again
+    journalctl --sync
+    set +o pipefail
+    timeout -v 35 journalctl -b -u systemd-logind.service --since="$ts" -n all --follow | grep -m "$((locks + 1))" -q 'Sent message type=signal .* member=Lock'
+    timeout -v 35 journalctl -b -u systemd-logind.service --since="$ts" -n all --follow | grep -m 2 -q -F 'System idle. Will be locked now.'
+    set -o pipefail
+}
+
+testcase_session_properties() {
+    local s
+
+    if [[ ! -c /dev/tty2 ]]; then
+        echo "/dev/tty2 does not exist, skipping test ${FUNCNAME[0]}."
+        return
+    fi
+
+    trap cleanup_session RETURN
+    create_session
+
+    s=$(loginctl list-sessions --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $1 }')
+    /usr/lib/systemd/tests/unit-tests/manual/test-session-properties "/org/freedesktop/login1/session/_3${s?}" /dev/tty2
+}
+
+testcase_list_users_sessions_seats() {
+    local session seat
+
+    if [[ ! -c /dev/tty2 ]]; then
+        echo "/dev/tty2 does not exist, skipping test ${FUNCNAME[0]}."
+        return
+    fi
+
+    trap cleanup_session RETURN
+    create_session
+
+    # Activate the session
+    loginctl activate "$(loginctl --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $1 }')"
+
+    session=$(loginctl list-sessions --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $1 }')
+    : check that we got a valid session id
+    busctl get-property org.freedesktop.login1 "/org/freedesktop/login1/session/_3${session?}" org.freedesktop.login1.Session Id
+    assert_eq "$(loginctl list-sessions --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $2 }')" "$(id -ru logind-test-user)"
+    seat=$(loginctl list-sessions --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $4 }')
+    assert_eq "$(loginctl list-sessions --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $6 }')" user
+    assert_eq "$(loginctl list-sessions --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $7 }')" tty2
+    assert_eq "$(loginctl list-sessions --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $8 }')" no
+    assert_eq "$(loginctl list-sessions --no-legend | grep -v manager | awk '$3 == "logind-test-user" { print $9 }')" '-'
+
+    loginctl list-seats --no-legend | grep -Fwq "${seat?}"
+
+    assert_eq "$(loginctl list-users --no-legend | awk '$2 == "logind-test-user" { print $1 }')" "$(id -ru logind-test-user)"
+    assert_eq "$(loginctl list-users --no-legend | awk '$2 == "logind-test-user" { print $3 }')" no
+    assert_eq "$(loginctl list-users --no-legend | awk '$2 == "logind-test-user" { print $4 }')" active
+
+    loginctl enable-linger logind-test-user
+    assert_eq "$(loginctl list-users --no-legend | awk '$2 == "logind-test-user" { print $3 }')" yes
+
+    for s in $(loginctl list-sessions --no-legend | grep tty | awk '$3 == "logind-test-user" { print $1 }'); do
+        loginctl terminate-session "$s"
+    done
+    if ! timeout 30 bash -c "while loginctl --no-legend | grep tty | grep -q logind-test-user; do sleep 1; done"; then
+        echo "WARNING: session for logind-test-user still active, ignoring."
+        return
+    fi
+
+    timeout 30 bash -c "until [[ \"\$(loginctl list-users --no-legend | awk '\$2 == \"logind-test-user\" { print \$4 }')\" == lingering ]]; do sleep 1; done"
+}
+
+teardown_stop_idle_session() (
+    set +eux
+
+    rm -f /run/systemd/logind.conf.d/stop-idle-session.conf
+    systemctl restart systemd-logind.service
+
+    cleanup_session
+)
+
+testcase_stop_idle_session() {
+    local id ts
+
+    if [[ ! -c /dev/tty2 ]]; then
+        echo "/dev/tty2 does not exist, skipping test ${FUNCNAME[0]}."
+        return
+    fi
+
+    create_session
+    trap teardown_stop_idle_session RETURN
+
+    id="$(loginctl --no-legend | grep tty | awk '$3 == "logind-test-user" { print $1; }')"
+
+    journalctl --sync
+    ts="$(date '+%H:%M:%S')"
+
+    mkdir -p /run/systemd/logind.conf.d
+    cat >/run/systemd/logind.conf.d/stop-idle-session.conf <<EOF
+[Login]
+StopIdleSessionSec=2s
+EOF
+    systemctl restart systemd-logind.service
+    sleep 5
+
+    journalctl --sync
+    assert_eq "$(journalctl -b -u systemd-logind.service --since="$ts" --grep "Session \"$id\" of user \"logind-test-user\" is idle, stopping." | wc -l)" 1
+    assert_eq "$(loginctl --no-legend | grep -v manager | grep -c "logind-test-user")" 0
+}
+
+testcase_ambient_caps() {
+    local PAMSERVICE TRANSIENTUNIT SCRIPT
+
+    # Verify that pam_systemd works and assigns ambient caps as it should
+
+    if ! grep -q 'CapAmb:' /proc/self/status ; then
+        echo "ambient caps not available, skipping test." >&2
+        return
+    fi
+
+    typeset -i BND MASK
+
+    # Get PID 1's bounding set
+    BND="0x$(grep 'CapBnd:' /proc/1/status | cut -d: -f2 | tr -d '[:space:]')"
+
+    # CAP_CHOWN | CAP_KILL
+    MASK=$(((1 << 0) | (1 << 5)))
+
+    if [ $((BND & MASK)) -ne "$MASK" ] ; then
+        echo "CAP_CHOWN or CAP_KILL not available in bounding set, skipping test." >&2
+        return
+    fi
+
+    PAMSERVICE="pamserv$RANDOM"
+    TRANSIENTUNIT="capwakealarm$RANDOM.service"
+    SCRIPT="/tmp/capwakealarm$RANDOM.sh"
+
+    cat > /etc/pam.d/"$PAMSERVICE" <<EOF
+auth sufficient    pam_unix.so
+auth required      pam_deny.so
+account sufficient pam_unix.so
+account required   pam_permit.so
+session optional   pam_systemd.so default-capability-ambient-set=CAP_CHOWN,CAP_KILL debug
+session required   pam_unix.so
+EOF
+
+    cat > "$SCRIPT" <<'EOF'
+#!/bin/bash
+set -ex
+typeset -i AMB MASK
+AMB="0x$(grep 'CapAmb:' /proc/self/status | cut -d: -f2 | tr -d '[:space:]')"
+MASK=$(((1 << 0) | (1 << 5)))
+test "$AMB" -eq "$MASK"
+EOF
+
+    chmod +x "$SCRIPT"
+
+    systemd-run -u "$TRANSIENTUNIT" -p PAMName="$PAMSERVICE" -p Type=oneshot -p User=logind-test-user -p StandardError=tty "$SCRIPT"
+
+    rm -f "$SCRIPT" "$PAMSERVICE"
+}
+
+background_at_return() {
+    rm -f /etc/pam.d/"$PAMSERVICE"
+    unset PAMSERVICE
+}
+
+testcase_background() {
+
+    local uid TRANSIENTUNIT1 TRANSIENTUNIT2
+
+    uid=$(id -u logind-test-user)
+
+    systemctl stop user@"$uid".service
+
+    PAMSERVICE="pamserv$RANDOM"
+    TRANSIENTUNIT1="bg$RANDOM.service"
+    TRANSIENTUNIT2="bgg$RANDOM.service"
+
+    trap background_at_return RETURN
+
+    cat > /etc/pam.d/"$PAMSERVICE" <<EOF
+auth sufficient    pam_unix.so
+auth required      pam_deny.so
+account sufficient pam_unix.so
+account required   pam_permit.so
+session optional   pam_systemd.so debug
+session required   pam_unix.so
+EOF
+
+    systemd-run -u "$TRANSIENTUNIT1" -p PAMName="$PAMSERVICE" -p "Environment=XDG_SESSION_CLASS=background-light" -p Type=exec -p User=logind-test-user sleep infinity
+
+    # This was a 'light' background service, hence the service manager should not be running
+    (! systemctl is-active user@"$uid".service )
+
+    systemctl stop "$TRANSIENTUNIT1"
+
+    systemd-run -u "$TRANSIENTUNIT2" -p PAMName="$PAMSERVICE" -p "Environment=XDG_SESSION_CLASS=background" -p Type=exec -p User=logind-test-user sleep infinity
+
+    # This was a regular background service, hence the service manager should be running
+    systemctl is-active user@"$uid".service
+
+    systemctl stop "$TRANSIENTUNIT2"
+
+    systemctl stop user@"$uid".service
+}
+
+setup_test_user
+test_write_dropin
+run_testcases
+
+touch /testok