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systemd/test/units/testsuite-07.exec-context.sh
networkException f2cb9d17da bpf-socket-bind: fix unexpected behavior with either 0 allow or deny rules
This patch fixes an issue where, when not specifiying either at least one
`SocketBindAllow` or `SocketBindDeny` rule, behavior for the bind syscall
filtering would be unexpected.

For example, when trying to bind to a port with only "SocketBindDeny=any"
given, the syscall would succeed:

> systemd-run -t -p "SocketBindDeny=any" nc -l 8080

Expected with this set of rules (also in accordance with the documentation)
would be an Operation not permitted error.

This behavior occurs because a default initialized socket_bind_rule struct
matches what "any" represents. When creating the bpf list all elements get
default initialized, as such represeting "any". Seemingly it is necressarry
to set the size of the map to at least one, as such if no allow rule is
given default initialization and minimal map size cause one any allow rule
to be in the map, causing the behavior observed above.

This patch solves this by introducing a new "match nothing" magic stored in
the rule's address family and setting such a rule as the first one if no
rule is given, making sure that default initialized rule structs are never
used.

Resolves #30556
2024-03-24 11:08:58 +00:00

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#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
# shellcheck disable=SC2016
set -eux
set -o pipefail
# shellcheck source=test/units/util.sh
. "$(dirname "$0")"/util.sh
# Make sure the unit's exec context matches its configuration
# See: https://github.com/systemd/systemd/pull/29552
# Even though hidepid= was introduced in kernel 3.3, we support only
# the post 5.8 implementation that allows us to apply the option per-instance,
# instead of the whole namespace. To distinguish between these two implementations
# lets check if we can mount procfs with a named value (e.g. hidepid=off), since
# support for this was introduced in the same commit as the per-instance stuff
proc_supports_option() {
local option="${1:?}"
local proc_tmp ec
proc_tmp="$(mktemp -d)"
mount -t proc -o "$option" proc "$proc_tmp" && ec=0 || ec=$?
mountpoint -q "$proc_tmp" && umount -q "$proc_tmp"
rm -rf "$proc_tmp"
return $ec
}
# In coverage builds we disable ProtectSystem= and ProtectHome= via a service.d
# dropin in /etc. This dropin has, unfortunately, higher priority than
# the transient stuff from systemd-run. Let's just skip the following tests
# in that case instead of complicating the test setup even more */
if [[ -z "${COVERAGE_BUILD_DIR:-}" ]]; then
if ! systemd-detect-virt -cq && command -v bootctl >/dev/null; then
boot_path="$(bootctl --print-boot-path)"
esp_path="$(bootctl --print-esp-path)"
# If the mount points are handled by automount units, make sure we trigger
# them before proceeding further
ls -l "$boot_path" "$esp_path"
fi
systemd-run --wait --pipe -p ProtectSystem=yes \
bash -xec "test ! -w /usr; ${boot_path:+"test ! -w $boot_path; test ! -w $esp_path;"} test -w /etc; test -w /var"
systemd-run --wait --pipe -p ProtectSystem=full \
bash -xec "test ! -w /usr; ${boot_path:+"test ! -w $boot_path; test ! -w $esp_path;"} test ! -w /etc; test -w /var"
systemd-run --wait --pipe -p ProtectSystem=strict \
bash -xec "test ! -w /; test ! -w /etc; test ! -w /var; test -w /dev; test -w /proc"
systemd-run --wait --pipe -p ProtectSystem=no \
bash -xec "test -w /; test -w /etc; test -w /var; test -w /dev; test -w /proc"
MARK="$(mktemp /root/.exec-context.XXX)"
systemd-run --wait --pipe -p ProtectHome=yes \
bash -xec "test ! -w /home; test ! -w /root; test ! -w /run/user; test ! -e $MARK"
systemd-run --wait --pipe -p ProtectHome=read-only \
bash -xec "test ! -w /home; test ! -w /root; test ! -w /run/user; test -e $MARK"
systemd-run --wait --pipe -p ProtectHome=tmpfs \
bash -xec "test -w /home; test -w /root; test -w /run/user; test ! -e $MARK"
systemd-run --wait --pipe -p ProtectHome=no \
bash -xec "test -w /home; test -w /root; test -w /run/user; test -e $MARK"
rm -f "$MARK"
fi
if proc_supports_option "hidepid=off"; then
systemd-run --wait --pipe -p ProtectProc=noaccess -p User=testuser \
bash -xec 'test -e /proc/1; test ! -r /proc/1; test -r /proc/$$$$/comm'
systemd-run --wait --pipe -p ProtectProc=invisible -p User=testuser \
bash -xec 'test ! -e /proc/1; test -r /proc/$$$$/comm'
systemd-run --wait --pipe -p ProtectProc=ptraceable -p User=testuser \
bash -xec 'test ! -e /proc/1; test -r /proc/$$$$/comm'
systemd-run --wait --pipe -p ProtectProc=ptraceable -p User=testuser -p AmbientCapabilities=CAP_SYS_PTRACE \
bash -xec 'test -r /proc/1; test -r /proc/$$$$/comm'
systemd-run --wait --pipe -p ProtectProc=default -p User=testuser \
bash -xec 'test -r /proc/1; test -r /proc/$$$$/comm'
fi
if proc_supports_option "subset=pid"; then
systemd-run --wait --pipe -p ProcSubset=pid -p User=testuser \
bash -xec "test -r /proc/1/comm; test ! -e /proc/cpuinfo"
systemd-run --wait --pipe -p ProcSubset=all -p User=testuser \
bash -xec "test -r /proc/1/comm; test -r /proc/cpuinfo"
fi
if ! systemd-detect-virt -cq; then
systemd-run --wait --pipe -p ProtectKernelLogs=yes -p User=testuser \
bash -xec "test ! -r /dev/kmsg"
systemd-run --wait --pipe -p ProtectKernelLogs=no -p User=testuser \
bash -xec "test -r /dev/kmsg"
fi
systemd-run --wait --pipe -p BindPaths="/etc /home:/mnt:norbind -/foo/bar/baz:/usr:rbind" \
bash -xec "mountpoint /etc; test -d /etc/systemd; mountpoint /mnt; ! mountpoint /usr"
systemd-run --wait --pipe -p BindReadOnlyPaths="/etc /home:/mnt:norbind -/foo/bar/baz:/usr:rbind" \
bash -xec "test ! -w /etc; test ! -w /mnt; ! mountpoint /usr"
# Make sure we properly serialize/deserialize paths with spaces
# See: https://github.com/systemd/systemd/issues/30747
touch "/tmp/test file with spaces"
systemd-run --wait --pipe -p TemporaryFileSystem="/tmp" -p BindPaths="/etc /home:/mnt:norbind /tmp/test\ file\ with\ spaces" \
bash -xec "mountpoint /etc; test -d /etc/systemd; mountpoint /mnt; stat '/tmp/test file with spaces'"
systemd-run --wait --pipe -p TemporaryFileSystem="/tmp" -p BindPaths="/etc /home:/mnt:norbind /tmp/test\ file\ with\ spaces:/tmp/destination\ wi\:th\ spaces" \
bash -xec "mountpoint /etc; test -d /etc/systemd; mountpoint /mnt; stat '/tmp/destination wi:th spaces'"
# Check if we correctly serialize, deserialize, and set directives that
# have more complex internal handling
if ! systemd-detect-virt -cq; then
# Funny detail: this originally used the underlying rootfs device, but that,
# for some reason, caused "divide error" in kernel, followed by a kernel panic
TEMPFILE="$(mktemp)"
LODEV="$(losetup --show -f "$TEMPFILE")"
ROOT_DEV_MAJ_MIN="$(lsblk -nro MAJ:MIN "$LODEV")"
EXPECTED_IO_MAX="$ROOT_DEV_MAJ_MIN rbps=1000 wbps=1000000000000 riops=2000000000 wiops=4000"
EXPECTED_IO_LATENCY="$ROOT_DEV_MAJ_MIN target=69000"
SERVICE_NAME="test-io-directives-$RANDOM.service"
CGROUP_PATH="/sys/fs/cgroup/system.slice/$SERVICE_NAME"
# IO*=
ARGUMENTS=(
# Throw in a couple of invalid entries just to test things out
-p IOReadBandwidthMax="/foo/bar 1M"
-p IOReadBandwidthMax="/foo/baz 1M"
-p IOReadBandwidthMax="$LODEV 1M"
-p IOReadBandwidthMax="$LODEV 1K"
-p IOWriteBandwidthMax="$LODEV 1G"
-p IOWriteBandwidthMax="$LODEV 1T"
-p IOReadIOPSMax="$LODEV 2G"
-p IOWriteIOPSMax="$LODEV 4K"
-p IODeviceLatencyTargetSec="$LODEV 666ms"
-p IODeviceLatencyTargetSec="/foo/bar 69ms"
-p IODeviceLatencyTargetSec="$LODEV 69ms"
-p IOReadBandwidthMax="/foo/bar 1M"
-p IOReadBandwidthMax="/foo/baz 1M"
# TODO: IODeviceWeight= doesn't work on loop devices and virtual disks
-p IODeviceWeight="$LODEV 999"
-p IODeviceWeight="/foo/bar 999"
)
systemctl set-property system.slice IOAccounting=yes
# io.latency not available by default on Debian stable
if [[ -e /sys/fs/cgroup/system.slice/io.latency ]]; then
systemd-run --wait --pipe --unit "$SERVICE_NAME" "${ARGUMENTS[@]}" \
bash -xec "diff <(echo $EXPECTED_IO_MAX) $CGROUP_PATH/io.max; diff <(echo $EXPECTED_IO_LATENCY) $CGROUP_PATH/io.latency"
fi
# CPUScheduling=
ARGUMENTS=(
-p CPUSchedulingPolicy=rr # ID: 2
-p CPUSchedulingPolicy=fifo # ID: 1
-p CPUSchedulingPriority=5 # Actual prio: 94 (99 - prio)
-p CPUSchedulingPriority=10 # Actual prio: 89 (99 - prio)
)
systemd-run --wait --pipe --unit "$SERVICE_NAME" "${ARGUMENTS[@]}" \
bash -xec 'grep -E "^policy\s*:\s*1$" /proc/self/sched; grep -E "^prio\s*:\s*89$" /proc/self/sched'
# Device*=
ARGUMENTS=(
-p DevicePolicy=closed
-p DevicePolicy=strict
-p DeviceAllow="char-mem rm" # Allow read & mknod for /dev/{null,zero,...}
-p DeviceAllow="/dev/loop0 rw"
-p DeviceAllow="/dev/loop0 w" # Allow write for /dev/loop0
# Everything else should be disallowed per the strict policy
)
systemd-run --wait --pipe --unit "$SERVICE_NAME" "${ARGUMENTS[@]}" \
bash -xec 'test -r /dev/null; test ! -w /dev/null; test ! -r /dev/loop0; test -w /dev/loop0; test ! -r /dev/tty; test ! -w /dev/tty'
if ! systemctl --version | grep -qF -- "-BPF_FRAMEWORK"; then
# SocketBind*=
ARGUMENTS=(
-p SocketBindAllow=
-p SocketBindAllow=1234
-p SocketBindAllow=ipv4:udp:any
-p SocketBindAllow=ipv6:6666
# Everything but the last assignment is superfluous, but it still exercises
# the parsing machinery
-p SocketBindDeny=
-p SocketBindDeny=1111
-p SocketBindDeny=ipv4:1111
-p SocketBindDeny=ipv4:any
-p SocketBindDeny=ipv4:tcp:any
-p SocketBindDeny=ipv4:udp:10000-11000
-p SocketBindDeny=ipv6:1111
-p SocketBindDeny=any
)
# We should fail with EPERM when trying to bind to a socket not on the allow list
# (nc exits with 2 in that case)
systemd-run --wait -p SuccessExitStatus="1 2" --pipe "${ARGUMENTS[@]}" \
bash -xec 'timeout 1s nc -l 127.0.0.1 9999; exit 42'
systemd-run --wait -p SuccessExitStatus="1 2" --pipe "${ARGUMENTS[@]}" \
bash -xec 'timeout 1s nc -l ::1 9999; exit 42'
systemd-run --wait -p SuccessExitStatus="1 2" --pipe "${ARGUMENTS[@]}" \
bash -xec 'timeout 1s nc -6 -u -l ::1 9999; exit 42'
systemd-run --wait -p SuccessExitStatus="1 2" --pipe "${ARGUMENTS[@]}" \
bash -xec 'timeout 1s nc -4 -l 127.0.0.1 6666; exit 42'
systemd-run --wait -p SuccessExitStatus="1 2" --pipe -p SocketBindDeny=any \
bash -xec 'timeout 1s nc -l 127.0.0.1 9999; exit 42'
# Consequently, we should succeed when binding to a socket on the allow list
# and keep listening on it until we're killed by `timeout` (EC 124)
systemd-run --wait --pipe -p SuccessExitStatus=124 "${ARGUMENTS[@]}" \
bash -xec 'timeout 1s nc -4 -l 127.0.0.1 1234; exit 1'
systemd-run --wait --pipe -p SuccessExitStatus=124 "${ARGUMENTS[@]}" \
bash -xec 'timeout 1s nc -4 -u -l 127.0.0.1 5678; exit 1'
systemd-run --wait --pipe -p SuccessExitStatus=124 "${ARGUMENTS[@]}" \
bash -xec 'timeout 1s nc -6 -l ::1 1234; exit 1'
systemd-run --wait --pipe -p SuccessExitStatus=124 "${ARGUMENTS[@]}" \
bash -xec 'timeout 1s nc -6 -l ::1 6666; exit 1'
fi
losetup -d "$LODEV"
rm -f "$TEMPFILE"
fi
# {Cache,Configuration,Logs,Runtime,State}Directory=
ARGUMENTS=(
-p CacheDirectory="foo/bar/baz also\ with\ spaces"
-p CacheDirectory="foo"
-p CacheDirectory="context"
-p CacheDirectoryMode="0123"
-p CacheDirectoryMode="0666"
-p ConfigurationDirectory="context/foo also_context/bar context/nested/baz context/semi\:colon"
-p ConfigurationDirectoryMode="0400"
-p LogsDirectory="context/foo"
-p LogsDirectory=""
-p LogsDirectory="context/a/very/nested/logs/dir"
-p RuntimeDirectory="context/with\ spaces"
# Note: {Runtime,State,Cache,Logs}Directory= directives support the directory:symlink syntax, which
# requires an additional level of escaping for the colon character
-p RuntimeDirectory="also_context:a\ symlink\ with\ \\\:\ col\\\:ons\ and\ \ spaces"
-p RuntimeDirectoryPreserve=yes
-p StateDirectory="context"
-p StateDirectory="./././././././context context context"
-p StateDirectoryMode="0000"
)
rm -rf /run/context
systemd-run --wait --pipe "${ARGUMENTS[@]}" \
bash -xec '[[ $CACHE_DIRECTORY == "/var/cache/also with spaces:/var/cache/context:/var/cache/foo:/var/cache/foo/bar/baz" ]];
[[ $(stat -c "%a" "${CACHE_DIRECTORY##*:}") == 666 ]]'
systemd-run --wait --pipe "${ARGUMENTS[@]}" \
bash -xec '[[ $CONFIGURATION_DIRECTORY == /etc/also_context/bar:/etc/context/foo:/etc/context/nested/baz:/etc/context/semi:colon ]];
[[ $(stat -c "%a" "${CONFIGURATION_DIRECTORY%%:*}") == 400 ]]'
systemd-run --wait --pipe "${ARGUMENTS[@]}" \
bash -xec '[[ $LOGS_DIRECTORY == /var/log/context/a/very/nested/logs/dir:/var/log/context/foo ]];
[[ $(stat -c "%a" "${LOGS_DIRECTORY##*:}") == 755 ]]'
systemd-run --wait --pipe "${ARGUMENTS[@]}" \
bash -xec '[[ $RUNTIME_DIRECTORY == "/run/also_context:/run/context/with spaces" ]];
[[ $(stat -c "%a" "${RUNTIME_DIRECTORY##*:}") == 755 ]];
[[ $(stat -c "%a" "${RUNTIME_DIRECTORY%%:*}") == 755 ]]'
systemd-run --wait --pipe "${ARGUMENTS[@]}" \
bash -xec '[[ $STATE_DIRECTORY == /var/lib/context ]]; [[ $(stat -c "%a" $STATE_DIRECTORY) == 0 ]]'
test -d "/run/context/with spaces"
test -s "/run/a symlink with : col:ons and spaces"
rm -rf /var/{cache,lib,log}/context /etc/{also_,}context
# Limit*=
#
# Note: keep limits of LimitDATA= and LimitAS= unlimited, otherwise ASan (LSan)
# won't be able to mmap the shadow maps
ARGUMENTS=(
-p LimitCPU=15
-p LimitCPU=10:15 # ulimit -t
-p LimitFSIZE=96G # ulimit -f
-p LimitDATA=8T:infinity
-p LimitDATA=infinity # ulimit -d
-p LimitSTACK=8M # ulimit -s
-p LimitCORE=infinity
-p LimitCORE=17M # ulimit -c
-p LimitRSS=27G # ulimit -m
-p LimitNOFILE=7:127 # ulimit -n
-p LimitAS=infinity # ulimit -v
-p LimitNPROC=1
-p LimitNPROC=64:infinity # ulimit -u
-p LimitMEMLOCK=37M # ulimit -l
-p LimitLOCKS=19:1021 # ulimit -x
-p LimitSIGPENDING=21 # ulimit -i
-p LimitMSGQUEUE=666 # ulimit -q
-p LimitNICE=4 # ulimit -e
-p LimitRTPRIO=8 # ulimit -r
-p LimitRTTIME=666666 # ulimit -R
)
# Do all the checks in one giant inline shell blob to avoid the overhead of spawning
# a new service for each check
#
# Note: ulimit shows storage-related values in 1024-byte increments*
# Note2: ulimit -R requires bash >= 5.1
#
# * in POSIX mode -c a -f options show values in 512-byte increments; let's hope
# we never run in the POSIX mode
systemd-run --wait --pipe "${ARGUMENTS[@]}" \
bash -xec 'KB=1; MB=$((KB * 1024)); GB=$((MB * 1024)); TB=$((GB * 1024));
: CPU; [[ $(ulimit -St) -eq 10 ]]; [[ $(ulimit -Ht) -eq 15 ]];
: FSIZE; [[ $(ulimit -Sf) -eq $((96 * GB)) ]]; [[ $(ulimit -Hf) -eq $((96 * GB)) ]];
: DATA; [[ $(ulimit -Sd) == unlimited ]]; [[ $(ulimit -Hd) == unlimited ]];
: STACK; [[ $(ulimit -Ss) -eq $((8 * MB)) ]]; [[ $(ulimit -Hs) -eq $((8 * MB)) ]];
: CORE; [[ $(ulimit -Sc) -eq $((17 * MB)) ]]; [[ $(ulimit -Hc) -eq $((17 * MB)) ]];
: RSS; [[ $(ulimit -Sm) -eq $((27 * GB)) ]]; [[ $(ulimit -Hm) -eq $((27 * GB)) ]];
: NOFILE; [[ $(ulimit -Sn) -eq 7 ]]; [[ $(ulimit -Hn) -eq 127 ]];
: AS; [[ $(ulimit -Sv) == unlimited ]]; [[ $(ulimit -Hv) == unlimited ]];
: NPROC; [[ $(ulimit -Su) -eq 64 ]]; [[ $(ulimit -Hu) == unlimited ]];
: MEMLOCK; [[ $(ulimit -Sl) -eq $((37 * MB)) ]]; [[ $(ulimit -Hl) -eq $((37 * MB)) ]];
: LOCKS; [[ $(ulimit -Sx) -eq 19 ]]; [[ $(ulimit -Hx) -eq 1021 ]];
: SIGPENDING; [[ $(ulimit -Si) -eq 21 ]]; [[ $(ulimit -Hi) -eq 21 ]];
: MSGQUEUE; [[ $(ulimit -Sq) -eq 666 ]]; [[ $(ulimit -Hq) -eq 666 ]];
: NICE; [[ $(ulimit -Se) -eq 4 ]]; [[ $(ulimit -He) -eq 4 ]];
: RTPRIO; [[ $(ulimit -Sr) -eq 8 ]]; [[ $(ulimit -Hr) -eq 8 ]];
ulimit -R || exit 0;
: RTTIME; [[ $(ulimit -SR) -eq 666666 ]]; [[ $(ulimit -HR) -eq 666666 ]];'
# RestrictFileSystems=
#
# Note: running instrumented binaries requires at least /proc to be accessible, so let's
# skip the test when we're running under sanitizers
#
# Note: $GCOV_ERROR_LOG is used during coverage runs to suppress errors when creating *.gcda files,
# since gcov can't access the restricted filesystem (as expected)
if [[ ! -v ASAN_OPTIONS ]] && systemctl --version | grep "+BPF_FRAMEWORK" && kernel_supports_lsm bpf; then
ROOTFS="$(df --output=fstype /usr/bin | sed --quiet 2p)"
systemd-run --wait --pipe -p RestrictFileSystems="" ls /
systemd-run --wait --pipe -p RestrictFileSystems="$ROOTFS foo bar" ls /
(! systemd-run --wait --pipe -p RestrictFileSystems="$ROOTFS" ls /proc)
(! systemd-run --wait --pipe -p GCOV_ERROR_LOG=/dev/null -p RestrictFileSystems="foo" ls /)
systemd-run --wait --pipe -p RestrictFileSystems="$ROOTFS foo bar baz proc" ls /proc
systemd-run --wait --pipe -p RestrictFileSystems="$ROOTFS @foo @basic-api" ls /proc
systemd-run --wait --pipe -p RestrictFileSystems="$ROOTFS @foo @basic-api" ls /sys/fs/cgroup
systemd-run --wait --pipe -p RestrictFileSystems="~" ls /
systemd-run --wait --pipe -p RestrictFileSystems="~proc" ls /
systemd-run --wait --pipe -p RestrictFileSystems="~@basic-api" ls /
(! systemd-run --wait --pipe -p GCOV_ERROR_LOG=/dev/null -p RestrictFileSystems="~$ROOTFS" ls /)
(! systemd-run --wait --pipe -p RestrictFileSystems="~proc" ls /proc)
(! systemd-run --wait --pipe -p RestrictFileSystems="~@basic-api" ls /proc)
(! systemd-run --wait --pipe -p RestrictFileSystems="~proc foo @bar @basic-api" ls /proc)
(! systemd-run --wait --pipe -p RestrictFileSystems="~proc foo @bar @basic-api" ls /sys)
systemd-run --wait --pipe -p RestrictFileSystems="~proc devtmpfs sysfs" ls /
(! systemd-run --wait --pipe -p RestrictFileSystems="~proc devtmpfs sysfs" ls /proc)
(! systemd-run --wait --pipe -p RestrictFileSystems="~proc devtmpfs sysfs" ls /dev)
(! systemd-run --wait --pipe -p RestrictFileSystems="~proc devtmpfs sysfs" ls /sys)
fi
# Make sure we properly (de)serialize various string arrays, including whitespaces
# See: https://github.com/systemd/systemd/issues/31214
systemd-run --wait --pipe -p Environment="FOO='bar4 '" \
bash -xec '[[ $FOO == "bar4 " ]]'
systemd-run --wait --pipe -p Environment="FOO='bar4 ' BAR='\n\n'" \
bash -xec "[[ \$FOO == 'bar4 ' && \$BAR == $'\n\n' ]]"
systemd-run --wait --pipe -p Environment='FOO="bar4 \\ "' -p Environment="BAR='\n\t'" \
bash -xec "[[ \$FOO == 'bar4 \\ ' && \$BAR == $'\n\t' ]]"
TEST_ENV_FILE="/tmp/test-env-file-$RANDOM- "
cat >"$TEST_ENV_FILE" <<EOF
FOO="env file "
BAR="
"
EOF
systemd-run --wait --pipe cat "$TEST_ENV_FILE"
systemd-run --wait --pipe -p ReadOnlyPaths="'$TEST_ENV_FILE'" \
bash -xec '[[ ! -w "$TEST_ENV_FILE" ]]'
systemd-run --wait --pipe -p PrivateTmp=yes -p BindReadOnlyPaths="'$TEST_ENV_FILE':'/tmp/bar- '" \
bash -xec '[[ -e "/tmp/bar- " && ! -w "/tmp/bar- " ]]'
systemd-run --wait --pipe -p EnvironmentFile="$TEST_ENV_FILE" \
bash -xec "[[ \$FOO == 'env file ' && \$BAR == $'\n ' ]]"
rm -f "$TEST_ENV_FILE"
# manager_serialize()/manager_deserialize() uses similar machinery
systemctl unset-environment FOO_WITH_SPACES
systemctl set-environment FOO_WITH_SPACES="foo " FOO_WITH_TABS="foo\t\t\t"
systemctl show-environment
systemctl show-environment | grep -F "FOO_WITH_SPACES=$'foo '"
systemctl show-environment | grep -F "FOO_WITH_TABS=$'foo\\\\t\\\\t\\\\t'"
systemctl daemon-reexec
systemctl show-environment
systemctl show-environment | grep -F "FOO_WITH_SPACES=$'foo '"
systemctl show-environment | grep -F "FOO_WITH_TABS=$'foo\\\\t\\\\t\\\\t'"
# Ensure that clean-up codepaths work correctly if activation ultimately fails
touch /run/not-a-directory
mkdir /tmp/root
touch /tmp/root/foo
chmod +x /tmp/root/foo
(! systemd-run --wait --pipe false)
(! systemd-run --wait --pipe --unit "test-dynamicuser-fail" -p DynamicUser=yes -p WorkingDirectory=/nonexistent true)
(! systemd-run --wait --pipe -p RuntimeDirectory=not-a-directory true)
(! systemd-run --wait --pipe -p RootDirectory=/tmp/root this-shouldnt-exist)
(! systemd-run --wait --pipe -p RootDirectory=/tmp/root /foo)
(! systemd-run --wait --pipe --service-type=oneshot -p ExecStartPre=-/foo/bar/baz -p ExecStart=-/foo/bar/baz -p RootDirectory=/tmp/root -- "- foo")