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-rwxr-xr-xtest/units/testsuite-64.sh1192
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diff --git a/test/units/testsuite-64.sh b/test/units/testsuite-64.sh
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+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+# vi: ts=4 sw=4 tw=0 et:
+
+set -eux
+set -o pipefail
+
+# Check if all symlinks under /dev/disk/ are valid
+# shellcheck disable=SC2120
+helper_check_device_symlinks() {(
+ set +x
+
+ local dev link path paths target
+
+ [[ $# -gt 0 ]] && paths=("$@") || paths=("/dev/disk" "/dev/mapper")
+
+ # Check if all given paths are valid
+ for path in "${paths[@]}"; do
+ if ! test -e "$path"; then
+ echo >&2 "Path '$path' doesn't exist"
+ return 1
+ fi
+ done
+
+ while read -r link; do
+ target="$(readlink -f "$link")"
+ # Both checks should do virtually the same thing, but check both to be
+ # on the safe side
+ if [[ ! -e "$link" || ! -e "$target" ]]; then
+ echo >&2 "ERROR: symlink '$link' points to '$target' which doesn't exist"
+ return 1
+ fi
+
+ # Check if the symlink points to the correct device in /dev
+ dev="/dev/$(udevadm info -q name "$link")"
+ if [[ "$target" != "$dev" ]]; then
+ echo >&2 "ERROR: symlink '$link' points to '$target' but '$dev' was expected"
+ return 1
+ fi
+ done < <(find "${paths[@]}" -type l)
+)}
+
+helper_check_udev_watch() {(
+ set +x
+
+ local link target id dev
+
+ while read -r link; do
+ target="$(readlink "$link")"
+ if [[ ! -L "/run/udev/watch/$target" ]]; then
+ echo >&2 "ERROR: symlink /run/udev/watch/$target does not exist"
+ return 1
+ fi
+ if [[ "$(readlink "/run/udev/watch/$target")" != "$(basename "$link")" ]]; then
+ echo >&2 "ERROR: symlink target of /run/udev/watch/$target is inconsistent with $link"
+ return 1
+ fi
+
+ if [[ "$target" =~ ^[0-9]+$ ]]; then
+ # $link is ID -> wd
+ id="$(basename "$link")"
+ else
+ # $link is wd -> ID
+ id="$target"
+ fi
+
+ if [[ "${id:0:1}" == "b" ]]; then
+ dev="/dev/block/${id:1}"
+ elif [[ "${id:0:1}" == "c" ]]; then
+ dev="/dev/char/${id:1}"
+ else
+ echo >&2 "ERROR: unexpected device ID '$id'"
+ return 1
+ fi
+
+ if [[ ! -e "$dev" ]]; then
+ echo >&2 "ERROR: device '$dev' corresponding to symlink '$link' does not exist"
+ return 1
+ fi
+ done < <(find /run/udev/watch -type l)
+)}
+
+check_device_unit() {(
+ set +x
+
+ local log_level link links path syspath unit
+
+ log_level="${1?}"
+ path="${2?}"
+ unit=$(systemd-escape --path --suffix=device "$path")
+
+ [[ "$log_level" == 1 ]] && echo "INFO: check_device_unit($unit)"
+
+ syspath=$(systemctl show --value --property SysFSPath "$unit" 2>/dev/null)
+ if [[ -z "$syspath" ]]; then
+ [[ "$log_level" == 1 ]] && echo >&2 "ERROR: $unit not found."
+ return 1
+ fi
+
+ if [[ ! -L "$path" ]]; then
+ if [[ ! -d "$syspath" ]]; then
+ [[ "$log_level" == 1 ]] && echo >&2 "ERROR: $unit exists for $syspath but it does not exist."
+ return 1
+ fi
+ return 0
+ fi
+
+ if [[ ! -b "$path" && ! -c "$path" ]]; then
+ [[ "$log_level" == 1 ]] && echo >&2 "ERROR: invalid file type $path"
+ return 1
+ fi
+
+ read -r -a links < <(udevadm info -q symlink "$syspath" 2>/dev/null)
+ for link in "${links[@]}"; do
+ if [[ "/dev/$link" == "$path" ]]; then # DEVLINKS= given by -q symlink are relative to /dev
+ return 0
+ fi
+ done
+
+ read -r -a links < <(udevadm info "$syspath" | sed -ne '/SYSTEMD_ALIAS=/ { s/^E: SYSTEMD_ALIAS=//; p }' 2>/dev/null)
+ for link in "${links[@]}"; do
+ if [[ "$link" == "$path" ]]; then # SYSTEMD_ALIAS= are absolute
+ return 0
+ fi
+ done
+
+ [[ "$log_level" == 1 ]] && echo >&2 "ERROR: $unit exists for $syspath but it does not have the corresponding DEVLINKS or SYSTEMD_ALIAS."
+ return 1
+)}
+
+check_device_units() {(
+ set +x
+
+ local log_level path paths
+
+ log_level="${1?}"
+ shift
+ paths=("$@")
+
+ for path in "${paths[@]}"; do
+ if ! check_device_unit "$log_level" "$path"; then
+ return 1
+ fi
+ done
+
+ while read -r unit _; do
+ path=$(systemd-escape --path --unescape "$unit")
+ if ! check_device_unit "$log_level" "$path"; then
+ return 1
+ fi
+ done < <(systemctl list-units --all --type=device --no-legend dev-* | awk '$1 !~ /dev-tty.+/ { print $1 }' | sed -e 's/\.device$//')
+
+ return 0
+)}
+
+helper_check_device_units() {(
+ set +x
+
+ local i
+
+ for i in {1..20}; do
+ (( i > 1 )) && sleep 0.5
+ if check_device_units 0 "$@"; then
+ return 0
+ fi
+ done
+
+ check_device_units 1 "$@"
+)}
+
+testcase_megasas2_basic() {
+ lsblk -S
+ [[ "$(lsblk --scsi --noheadings | wc -l)" -ge 128 ]]
+}
+
+testcase_nvme_basic() {
+ local expected_symlinks=()
+ local i
+
+ for (( i = 0; i < 5; i++ )); do
+ expected_symlinks+=(
+ # both replace mode provides the same devlink
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_deadbeef"$i"
+ # with nsid
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_deadbeef"$i"_1
+ )
+ done
+ for (( i = 5; i < 10; i++ )); do
+ expected_symlinks+=(
+ # old replace mode
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl__deadbeef_"$i"
+ # newer replace mode
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_____deadbeef__"$i"
+ # with nsid
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_____deadbeef__"$i"_1
+ )
+ done
+ for (( i = 10; i < 15; i++ )); do
+ expected_symlinks+=(
+ # old replace mode does not provide devlink, as serial contains "/"
+ # newer replace mode
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_____dead_beef_"$i"
+ # with nsid
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_____dead_beef_"$i"_1
+ )
+ done
+ for (( i = 15; i < 20; i++ )); do
+ expected_symlinks+=(
+ # old replace mode does not provide devlink, as serial contains "/"
+ # newer replace mode
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_dead_.._.._beef_"$i"
+ # with nsid
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_dead_.._.._beef_"$i"_1
+ )
+ done
+
+ udevadm settle
+ ls /dev/disk/by-id
+ for i in "${expected_symlinks[@]}"; do
+ udevadm wait --settle --timeout=30 "$i"
+ done
+
+ lsblk --noheadings | grep "^nvme"
+ [[ "$(lsblk --noheadings | grep -c "^nvme")" -ge 20 ]]
+}
+
+testcase_nvme_subsystem() {
+ local expected_symlinks=(
+ # Controller(s)
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_deadbeef
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_deadbeef_16
+ /dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_deadbeef_17
+ # Shared namespaces
+ /dev/disk/by-path/pci-*-nvme-16
+ /dev/disk/by-path/pci-*-nvme-17
+ )
+
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+}
+
+testcase_virtio_scsi_identically_named_partitions() {
+ local num
+
+ if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
+ num=$((4 * 4))
+ else
+ num=$((16 * 8))
+ fi
+
+ lsblk --noheadings -a -o NAME,PARTLABEL
+ [[ "$(lsblk --noheadings -a -o NAME,PARTLABEL | grep -c "Hello world")" -eq "$num" ]]
+}
+
+testcase_multipath_basic_failover() {
+ local dmpath i path wwid
+
+ # Configure multipath
+ cat >/etc/multipath.conf <<\EOF
+defaults {
+ # Use /dev/mapper/$WWN paths instead of /dev/mapper/mpathX
+ user_friendly_names no
+ find_multipaths yes
+ enable_foreign "^$"
+}
+
+blacklist_exceptions {
+ property "(SCSI_IDENT_|ID_WWN)"
+}
+
+blacklist {
+}
+EOF
+ modprobe -v dm_multipath
+ systemctl start multipathd.service
+ systemctl status multipathd.service
+ multipath -ll
+ udevadm settle
+ ls -l /dev/disk/by-id/
+
+ for i in {0..15}; do
+ wwid="deaddeadbeef$(printf "%.4d" "$i")"
+ path="/dev/disk/by-id/wwn-0x$wwid"
+ dmpath="$(readlink -f "$path")"
+
+ lsblk "$path"
+ multipath -C "$dmpath"
+ # We should have 4 active paths for each multipath device
+ [[ "$(multipath -l "$path" | grep -c running)" -eq 4 ]]
+ done
+
+ # Test failover (with the first multipath device that has a partitioned disk)
+ echo "${FUNCNAME[0]}: test failover"
+ local device expected link mpoint part
+ local -a devices
+ mkdir -p /mnt
+ mpoint="$(mktemp -d /mnt/mpathXXX)"
+ wwid="deaddeadbeef0000"
+ path="/dev/disk/by-id/wwn-0x$wwid"
+
+ # All following symlinks should exists and should be valid
+ local -a part_links=(
+ "/dev/disk/by-id/wwn-0x$wwid-part2"
+ "/dev/disk/by-partlabel/failover_part"
+ "/dev/disk/by-partuuid/deadbeef-dead-dead-beef-000000000000"
+ "/dev/disk/by-label/failover_vol"
+ "/dev/disk/by-uuid/deadbeef-dead-dead-beef-111111111111"
+ )
+ udevadm wait --settle --timeout=30 "${part_links[@]}"
+ helper_check_device_units "${part_links[@]}"
+
+ # Choose a random symlink to the failover data partition each time, for
+ # a better coverage
+ part="${part_links[$RANDOM % ${#part_links[@]}]}"
+
+ # Get all devices attached to a specific multipath device (in H:C:T:L format)
+ # and sort them in a random order, so we cut off different paths each time
+ mapfile -t devices < <(multipath -l "$path" | grep -Eo '[0-9]+:[0-9]+:[0-9]+:[0-9]+' | sort -R)
+ if [[ "${#devices[@]}" -ne 4 ]]; then
+ echo "Expected 4 devices attached to WWID=$wwid, got ${#devices[@]} instead"
+ return 1
+ fi
+ # Drop the last path from the array, since we want to leave at least one path active
+ unset "devices[3]"
+ # Mount the first multipath partition, write some data we can check later,
+ # and then disconnect the remaining paths one by one while checking if we
+ # can still read/write from the mount
+ mount -t ext4 "$part" "$mpoint"
+ expected=0
+ echo -n "$expected" >"$mpoint/test"
+ # Sanity check we actually wrote what we wanted
+ [[ "$(<"$mpoint/test")" == "$expected" ]]
+
+ for device in "${devices[@]}"; do
+ echo offline >"/sys/class/scsi_device/$device/device/state"
+ [[ "$(<"$mpoint/test")" == "$expected" ]]
+ expected="$((expected + 1))"
+ echo -n "$expected" >"$mpoint/test"
+
+ # Make sure all symlinks are still valid
+ udevadm wait --settle --timeout=30 "${part_links[@]}"
+ helper_check_device_units "${part_links[@]}"
+ done
+
+ multipath -l "$path"
+ # Three paths should be now marked as 'offline' and one as 'running'
+ [[ "$(multipath -l "$path" | grep -c offline)" -eq 3 ]]
+ [[ "$(multipath -l "$path" | grep -c running)" -eq 1 ]]
+
+ umount "$mpoint"
+ rm -fr "$mpoint"
+}
+
+testcase_simultaneous_events_1() {
+ local disk expected i iterations key link num_part part partscript rule target timeout
+ local -a devices symlinks
+ local -A running
+
+ if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
+ num_part=2
+ iterations=10
+ timeout=240
+ else
+ num_part=10
+ iterations=100
+ timeout=30
+ fi
+
+ for disk in {0..9}; do
+ link="/dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_deadbeeftest${disk}"
+ target="$(readlink -f "$link")"
+ if [[ ! -b "$target" ]]; then
+ echo "ERROR: failed to find the test SCSI block device $link"
+ return 1
+ fi
+
+ devices+=("$target")
+ done
+
+ for ((part = 1; part <= num_part; part++)); do
+ symlinks+=(
+ "/dev/disk/by-partlabel/test${part}"
+ )
+ done
+
+ partscript="$(mktemp)"
+
+ cat >"$partscript" <<EOF
+$(for ((part = 1; part <= num_part; part++)); do printf 'name="test%d", size=2M\n' "$part"; done)
+EOF
+
+ rule=/run/udev/rules.d/50-test.rules
+ mkdir -p "${rule%/*}"
+ cat >"$rule" <<EOF
+SUBSYSTEM=="block", KERNEL=="${devices[4]##*/}*|${devices[5]##*/}*", OPTIONS="link_priority=10"
+EOF
+
+ udevadm control --reload
+
+ # initialize partition table
+ for disk in {0..9}; do
+ echo 'label: gpt' | udevadm lock --device="${devices[$disk]}" sfdisk -q "${devices[$disk]}"
+ done
+
+ # Delete the partitions, immediately recreate them, wait for udev to settle
+ # down, and then check if we have any dangling symlinks in /dev/disk/. Rinse
+ # and repeat.
+ #
+ # On unpatched udev versions the delete-recreate cycle may trigger a race
+ # leading to dead symlinks in /dev/disk/
+ for ((i = 1; i <= iterations; i++)); do
+ for disk in {0..9}; do
+ if ((disk % 2 == i % 2)); then
+ udevadm lock --device="${devices[$disk]}" sfdisk -q --delete "${devices[$disk]}" &
+ else
+ udevadm lock --device="${devices[$disk]}" sfdisk -q -X gpt "${devices[$disk]}" <"$partscript" &
+ fi
+ running[$disk]=$!
+ done
+
+ for key in "${!running[@]}"; do
+ wait "${running[$key]}"
+ unset "running[$key]"
+ done
+
+ if ((i % 10 <= 1)); then
+ udevadm wait --settle --timeout="$timeout" "${devices[@]}" "${symlinks[@]}"
+ helper_check_device_symlinks
+ helper_check_udev_watch
+ for ((part = 1; part <= num_part; part++)); do
+ link="/dev/disk/by-partlabel/test${part}"
+ target="$(readlink -f "$link")"
+ if ((i % 2 == 0)); then
+ expected="${devices[5]}$part"
+ else
+ expected="${devices[4]}$part"
+ fi
+ if [[ "$target" != "$expected" ]]; then
+ echo >&2 "ERROR: symlink '/dev/disk/by-partlabel/test${part}' points to '$target' but '$expected' was expected"
+ return 1
+ fi
+ done
+ fi
+ done
+
+ helper_check_device_units
+ rm -f "$rule" "$partscript"
+
+ udevadm control --reload
+}
+
+testcase_simultaneous_events_2() {
+ local disk expected i iterations key link num_part part script_dir target timeout
+ local -a devices symlinks
+ local -A running
+
+ script_dir="$(mktemp --directory "/tmp/test-udev-storage.script.XXXXXXXXXX")"
+ # shellcheck disable=SC2064
+ trap "rm -rf '$script_dir'" RETURN
+
+ if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
+ num_part=20
+ iterations=1
+ timeout=2400
+ else
+ num_part=100
+ iterations=3
+ timeout=300
+ fi
+
+ for disk in {0..9}; do
+ link="/dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_deadbeeftest${disk}"
+ target="$(readlink -f "$link")"
+ if [[ ! -b "$target" ]]; then
+ echo "ERROR: failed to find the test SCSI block device $link"
+ return 1
+ fi
+
+ devices+=("$target")
+ done
+
+ for ((i = 1; i <= iterations; i++)); do
+ cat >"$script_dir/partscript-$i" <<EOF
+$(for ((part = 1; part <= num_part; part++)); do printf 'name="testlabel-%d", size=1M\n' "$i"; done)
+EOF
+ done
+
+ echo "## $iterations iterations start: $(date '+%H:%M:%S.%N')"
+ for ((i = 1; i <= iterations; i++)); do
+
+ for disk in {0..9}; do
+ udevadm lock --device="${devices[$disk]}" sfdisk -q --delete "${devices[$disk]}" &
+ running[$disk]=$!
+ done
+
+ for key in "${!running[@]}"; do
+ wait "${running[$key]}"
+ unset "running[$key]"
+ done
+
+ for disk in {0..9}; do
+ udevadm lock --device="${devices[$disk]}" sfdisk -q -X gpt "${devices[$disk]}" <"$script_dir/partscript-$i" &
+ running[$disk]=$!
+ done
+
+ for key in "${!running[@]}"; do
+ wait "${running[$key]}"
+ unset "running[$key]"
+ done
+
+ udevadm wait --settle --timeout="$timeout" "${devices[@]}" "/dev/disk/by-partlabel/testlabel-$i"
+ done
+ echo "## $iterations iterations end: $(date '+%H:%M:%S.%N')"
+}
+
+testcase_simultaneous_events() {
+ testcase_simultaneous_events_1
+ testcase_simultaneous_events_2
+}
+
+testcase_lvm_basic() {
+ local i iterations partitions part timeout
+ local vgroup="MyTestGroup$RANDOM"
+ local devices=(
+ /dev/disk/by-id/ata-foobar_deadbeeflvm{0..3}
+ )
+
+ if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
+ timeout=180
+ else
+ timeout=30
+ fi
+ # Make sure all the necessary soon-to-be-LVM devices exist
+ ls -l "${devices[@]}"
+
+ # Add all test devices into a volume group, create two logical volumes,
+ # and check if necessary symlinks exist (and are valid)
+ lvm pvcreate -y "${devices[@]}"
+ lvm pvs
+ lvm vgcreate "$vgroup" -y "${devices[@]}"
+ lvm vgs
+ lvm vgchange -ay "$vgroup"
+ lvm lvcreate -y -L 4M "$vgroup" -n mypart1
+ lvm lvcreate -y -L 32M "$vgroup" -n mypart2
+ lvm lvs
+ udevadm wait --settle --timeout="$timeout" "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2"
+ mkfs.ext4 -L mylvpart1 "/dev/$vgroup/mypart1"
+ udevadm wait --settle --timeout="$timeout" "/dev/disk/by-label/mylvpart1"
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+
+ # Mount mypart1 through by-label devlink
+ mkdir -p /tmp/mypart1-mount-point
+ mount /dev/disk/by-label/mylvpart1 /tmp/mypart1-mount-point
+ timeout 30 bash -c "until systemctl -q is-active /tmp/mypart1-mount-point; do sleep .2; done"
+ # Extend the partition and check if the device and mount units are still active.
+ # See https://bugzilla.redhat.com/show_bug.cgi?id=2158628
+ # Note, the test below may be unstable with LVM2 without the following patch:
+ # https://github.com/lvmteam/lvm2/pull/105
+ # But, to reproduce the issue, udevd must start to process the first 'change' uevent
+ # earlier than extending the volume has been finished, and in most case, the extension
+ # is hopefully fast.
+ lvm lvextend -y --size 8M "/dev/$vgroup/mypart1"
+ udevadm wait --settle --timeout="$timeout" "/dev/disk/by-label/mylvpart1"
+ timeout 30 bash -c "until systemctl -q is-active '/dev/$vgroup/mypart1'; do sleep .2; done"
+ timeout 30 bash -c "until systemctl -q is-active /tmp/mypart1-mount-point; do sleep .2; done"
+ # Umount the partition, otherwise the underlying device unit will stay in
+ # the inactive state and not be collected, and helper_check_device_units() will fail.
+ systemctl show /tmp/mypart1-mount-point
+ umount /tmp/mypart1-mount-point
+
+ # Rename partitions (see issue #24518)
+ lvm lvrename "/dev/$vgroup/mypart1" renamed1
+ lvm lvrename "/dev/$vgroup/mypart2" renamed2
+ udevadm wait --settle --timeout="$timeout" --removed "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2"
+ udevadm wait --settle --timeout="$timeout" "/dev/$vgroup/renamed1" "/dev/$vgroup/renamed2"
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+
+ # Rename them back
+ lvm lvrename "/dev/$vgroup/renamed1" mypart1
+ lvm lvrename "/dev/$vgroup/renamed2" mypart2
+ udevadm wait --settle --timeout="$timeout" --removed "/dev/$vgroup/renamed1" "/dev/$vgroup/renamed2"
+ udevadm wait --settle --timeout="$timeout" "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2"
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+
+ # Do not "unready" suspended encrypted devices w/o superblock info
+ # See:
+ # - https://github.com/systemd/systemd/pull/24177
+ # - https://bugzilla.redhat.com/show_bug.cgi?id=1985288
+ dd if=/dev/urandom of=/etc/lvm_keyfile bs=64 count=1 iflag=fullblock
+ chmod 0600 /etc/lvm_keyfile
+ # Intentionally use weaker cipher-related settings, since we don't care
+ # about security here as it's a throwaway LUKS partition
+ cryptsetup luksFormat -q --use-urandom --pbkdf pbkdf2 --pbkdf-force-iterations 1000 \
+ "/dev/$vgroup/mypart2" /etc/lvm_keyfile
+ # Mount the LUKS partition & create a filesystem on it
+ mkdir -p /tmp/lvmluksmnt
+ cryptsetup open --key-file=/etc/lvm_keyfile "/dev/$vgroup/mypart2" "lvmluksmap"
+ udevadm wait --settle --timeout="$timeout" "/dev/mapper/lvmluksmap"
+ mkfs.ext4 -L lvmluksfs "/dev/mapper/lvmluksmap"
+ udevadm wait --settle --timeout="$timeout" "/dev/disk/by-label/lvmluksfs"
+ # Make systemd "interested" in the mount by adding it to /etc/fstab
+ echo "/dev/disk/by-label/lvmluksfs /tmp/lvmluksmnt ext4 defaults 0 2" >>/etc/fstab
+ systemctl daemon-reload
+ mount "/tmp/lvmluksmnt"
+ mountpoint "/tmp/lvmluksmnt"
+ # Temporarily suspend the LUKS device and trigger udev - basically what `cryptsetup resize`
+ # does but in a more deterministic way suitable for a test/reproducer
+ for _ in {0..5}; do
+ dmsetup suspend "/dev/mapper/lvmluksmap"
+ udevadm trigger -v --settle "/dev/mapper/lvmluksmap"
+ dmsetup resume "/dev/mapper/lvmluksmap"
+ # The mount should survive this sequence of events
+ mountpoint "/tmp/lvmluksmnt"
+ done
+ # Cleanup
+ umount "/tmp/lvmluksmnt"
+ cryptsetup close "/dev/mapper/lvmluksmap"
+ sed -i "/lvmluksfs/d" "/etc/fstab"
+ systemctl daemon-reload
+
+ # Disable the VG and check symlinks...
+ lvm vgchange -an "$vgroup"
+ udevadm wait --settle --timeout="$timeout" --removed "/dev/$vgroup" "/dev/disk/by-label/mylvpart1"
+ helper_check_device_symlinks "/dev/disk"
+ helper_check_device_units
+
+ # reenable the VG and check the symlinks again if all LVs are properly activated
+ lvm vgchange -ay "$vgroup"
+ udevadm wait --settle --timeout="$timeout" "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2" "/dev/disk/by-label/mylvpart1"
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+
+ # Same as above, but now with more "stress"
+ if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
+ iterations=10
+ else
+ iterations=50
+ fi
+
+ for ((i = 1; i <= iterations; i++)); do
+ lvm vgchange -an "$vgroup"
+ lvm vgchange -ay "$vgroup"
+
+ if ((i % 5 == 0)); then
+ udevadm wait --settle --timeout="$timeout" "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2" "/dev/disk/by-label/mylvpart1"
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+ fi
+ done
+
+ # Remove the first LV
+ lvm lvremove -y "$vgroup/mypart1"
+ udevadm wait --settle --timeout="$timeout" --removed "/dev/$vgroup/mypart1"
+ udevadm wait --timeout=0 "/dev/$vgroup/mypart2"
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+
+ # Create & remove LVs in a loop, i.e. with more "stress"
+ if [[ -v ASAN_OPTIONS ]]; then
+ iterations=8
+ partitions=16
+ elif [[ "$(systemd-detect-virt -v)" == "qemu" ]]; then
+ iterations=8
+ partitions=8
+ else
+ iterations=16
+ partitions=16
+ fi
+
+ for ((i = 1; i <= iterations; i++)); do
+ # 1) Create some logical volumes
+ for ((part = 0; part < partitions; part++)); do
+ lvm lvcreate -y -L 4M "$vgroup" -n "looppart$part"
+ done
+
+ # 2) Immediately remove them
+ lvm lvremove -y $(seq -f "$vgroup/looppart%g" 0 "$((partitions - 1))")
+
+ # 3) On every 4th iteration settle udev and check if all partitions are
+ # indeed gone, and if all symlinks are still valid
+ if ((i % 4 == 0)); then
+ for ((part = 0; part < partitions; part++)); do
+ udevadm wait --settle --timeout="$timeout" --removed "/dev/$vgroup/looppart$part"
+ done
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+ fi
+ done
+}
+
+testcase_btrfs_basic() {
+ local dev_stub i label mpoint uuid
+ local devices=(
+ /dev/disk/by-id/ata-foobar_deadbeefbtrfs{0..3}
+ )
+
+ ls -l "${devices[@]}"
+
+ echo "Single device: default settings"
+ uuid="deadbeef-dead-dead-beef-000000000000"
+ label="btrfs_root"
+ udevadm lock --device="${devices[0]}" mkfs.btrfs -f -L "$label" -U "$uuid" "${devices[0]}"
+ udevadm wait --settle --timeout=30 "${devices[0]}" "/dev/disk/by-uuid/$uuid" "/dev/disk/by-label/$label"
+ btrfs filesystem show
+ helper_check_device_symlinks
+ helper_check_device_units
+
+ echo "Multiple devices: using partitions, data: single, metadata: raid1"
+ uuid="deadbeef-dead-dead-beef-000000000001"
+ label="btrfs_mpart"
+ udevadm lock --device="${devices[0]}" sfdisk --wipe=always "${devices[0]}" <<EOF
+label: gpt
+
+name="diskpart1", size=85M
+name="diskpart2", size=85M
+name="diskpart3", size=85M
+name="diskpart4", size=85M
+EOF
+ udevadm wait --settle --timeout=30 /dev/disk/by-partlabel/diskpart{1..4}
+ udevadm lock --device="${devices[0]}" mkfs.btrfs -f -d single -m raid1 -L "$label" -U "$uuid" /dev/disk/by-partlabel/diskpart{1..4}
+ udevadm wait --settle --timeout=30 "/dev/disk/by-uuid/$uuid" "/dev/disk/by-label/$label"
+ btrfs filesystem show
+ helper_check_device_symlinks
+ helper_check_device_units
+ wipefs -a -f "${devices[0]}"
+ udevadm wait --settle --timeout=30 --removed /dev/disk/by-partlabel/diskpart{1..4}
+
+ echo "Multiple devices: using disks, data: raid10, metadata: raid10, mixed mode"
+ uuid="deadbeef-dead-dead-beef-000000000002"
+ label="btrfs_mdisk"
+ udevadm lock \
+ --device=/dev/disk/by-id/ata-foobar_deadbeefbtrfs0 \
+ --device=/dev/disk/by-id/ata-foobar_deadbeefbtrfs1 \
+ --device=/dev/disk/by-id/ata-foobar_deadbeefbtrfs2 \
+ --device=/dev/disk/by-id/ata-foobar_deadbeefbtrfs3 \
+ mkfs.btrfs -f -M -d raid10 -m raid10 -L "$label" -U "$uuid" "${devices[@]}"
+ udevadm wait --settle --timeout=30 "/dev/disk/by-uuid/$uuid" "/dev/disk/by-label/$label"
+ btrfs filesystem show
+ helper_check_device_symlinks
+ helper_check_device_units
+
+ echo "Multiple devices: using LUKS encrypted disks, data: raid1, metadata: raid1, mixed mode"
+ uuid="deadbeef-dead-dead-beef-000000000003"
+ label="btrfs_mencdisk"
+ mpoint="/btrfs_enc$RANDOM"
+ mkdir "$mpoint"
+ # Create a key-file
+ dd if=/dev/urandom of=/etc/btrfs_keyfile bs=64 count=1 iflag=fullblock
+ chmod 0600 /etc/btrfs_keyfile
+ # Encrypt each device and add it to /etc/crypttab, so it can be mounted
+ # automagically later
+ : >/etc/crypttab
+ for ((i = 0; i < ${#devices[@]}; i++)); do
+ # Intentionally use weaker cipher-related settings, since we don't care
+ # about security here as it's a throwaway LUKS partition
+ cryptsetup luksFormat -q \
+ --use-urandom --pbkdf pbkdf2 --pbkdf-force-iterations 1000 \
+ --uuid "deadbeef-dead-dead-beef-11111111111$i" --label "encdisk$i" "${devices[$i]}" /etc/btrfs_keyfile
+ udevadm wait --settle --timeout=30 "/dev/disk/by-uuid/deadbeef-dead-dead-beef-11111111111$i" "/dev/disk/by-label/encdisk$i"
+ # Add the device into /etc/crypttab, reload systemd, and then activate
+ # the device so we can create a filesystem on it later
+ echo "encbtrfs$i UUID=deadbeef-dead-dead-beef-11111111111$i /etc/btrfs_keyfile luks" >>/etc/crypttab
+ systemctl daemon-reload
+ systemctl start "systemd-cryptsetup@encbtrfs$i"
+ done
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Check if we have all necessary DM devices
+ ls -l /dev/mapper/encbtrfs{0..3}
+ # Create a multi-device btrfs filesystem on the LUKS devices
+ udevadm lock \
+ --device=/dev/mapper/encbtrfs0 \
+ --device=/dev/mapper/encbtrfs1 \
+ --device=/dev/mapper/encbtrfs2 \
+ --device=/dev/mapper/encbtrfs3 \
+ mkfs.btrfs -f -M -d raid1 -m raid1 -L "$label" -U "$uuid" /dev/mapper/encbtrfs{0..3}
+ udevadm wait --settle --timeout=30 "/dev/disk/by-uuid/$uuid" "/dev/disk/by-label/$label"
+ btrfs filesystem show
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Mount it and write some data to it we can compare later
+ mount -t btrfs /dev/mapper/encbtrfs0 "$mpoint"
+ echo "hello there" >"$mpoint/test"
+ # "Deconstruct" the btrfs device and check if we're in a sane state (symlink-wise)
+ umount "$mpoint"
+ systemctl stop systemd-cryptsetup@encbtrfs{0..3}
+ udevadm wait --settle --timeout=30 --removed "/dev/disk/by-uuid/$uuid"
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Add the mount point to /etc/fstab and check if the device can be put together
+ # automagically. The source device is the DM name of the first LUKS device
+ # (from /etc/crypttab). We have to specify all LUKS devices manually, as
+ # registering the necessary devices is usually initrd's job (via btrfs device scan)
+ dev_stub="/dev/mapper/encbtrfs"
+ echo "/dev/mapper/encbtrfs0 $mpoint btrfs device=${dev_stub}0,device=${dev_stub}1,device=${dev_stub}2,device=${dev_stub}3 0 2" >>/etc/fstab
+ # Tell systemd about the new mount
+ systemctl daemon-reload
+ # Restart cryptsetup.target to trigger autounlock of partitions in /etc/crypttab
+ systemctl restart cryptsetup.target
+ # Start the corresponding mount unit and check if the btrfs device was reconstructed
+ # correctly
+ systemctl start "${mpoint##*/}.mount"
+ udevadm wait --settle --timeout=30 "/dev/disk/by-uuid/$uuid" "/dev/disk/by-label/$label"
+ btrfs filesystem show
+ helper_check_device_symlinks
+ helper_check_device_units
+ grep "hello there" "$mpoint/test"
+ # Cleanup
+ systemctl stop "${mpoint##*/}.mount"
+ systemctl stop systemd-cryptsetup@encbtrfs{0..3}
+ sed -i "/${mpoint##*/}/d" /etc/fstab
+ : >/etc/crypttab
+ rm -fr "$mpoint"
+ systemctl daemon-reload
+ udevadm settle
+}
+
+testcase_iscsi_lvm() {
+ local dev i label link lun_id mpoint target_name uuid
+ local target_ip="127.0.0.1"
+ local target_port="3260"
+ local vgroup="iscsi_lvm$RANDOM"
+ local expected_symlinks=()
+ local devices=(
+ /dev/disk/by-id/ata-foobar_deadbeefiscsi{0..3}
+ )
+
+ ls -l "${devices[@]}"
+
+ # Start the target daemon
+ systemctl start tgtd
+ systemctl status tgtd
+
+ echo "iSCSI LUNs backed by devices"
+ # See RFC3721 and RFC7143
+ target_name="iqn.2021-09.com.example:iscsi.test"
+ # Initialize a new iSCSI target <$target_name> consisting of 4 LUNs, each
+ # backed by a device
+ tgtadm --lld iscsi --op new --mode target --tid=1 --targetname "$target_name"
+ for ((i = 0; i < ${#devices[@]}; i++)); do
+ # lun-0 is reserved by iSCSI
+ lun_id="$((i + 1))"
+ tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun "$lun_id" -b "${devices[$i]}"
+ tgtadm --lld iscsi --op update --mode logicalunit --tid 1 --lun "$lun_id"
+ expected_symlinks+=(
+ "/dev/disk/by-path/ip-$target_ip:$target_port-iscsi-$target_name-lun-$lun_id"
+ )
+ done
+ tgtadm --lld iscsi --op bind --mode target --tid 1 -I ALL
+ # Configure the iSCSI initiator
+ iscsiadm --mode discoverydb --type sendtargets --portal "$target_ip" --discover
+ iscsiadm --mode node --targetname "$target_name" --portal "$target_ip:$target_port" --login
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Cleanup
+ iscsiadm --mode node --targetname "$target_name" --portal "$target_ip:$target_port" --logout
+ tgtadm --lld iscsi --op delete --mode target --tid=1
+
+ echo "iSCSI LUNs backed by files + LVM"
+ # Note: we use files here to "trick" LVM the disks are indeed on a different
+ # host, so it doesn't automagically detect another path to the backing
+ # device once we disconnect the iSCSI devices
+ target_name="iqn.2021-09.com.example:iscsi.lvm.test"
+ mpoint="$(mktemp -d /iscsi_storeXXX)"
+ expected_symlinks=()
+ # Use the first device as it's configured with larger capacity
+ mkfs.ext4 -L iscsi_store "${devices[0]}"
+ udevadm wait --settle --timeout=30 "${devices[0]}"
+ mount "${devices[0]}" "$mpoint"
+ for i in {1..4}; do
+ dd if=/dev/zero of="$mpoint/lun$i.img" bs=1M count=32
+ done
+ # Initialize a new iSCSI target <$target_name> consisting of 4 LUNs, each
+ # backed by a file
+ tgtadm --lld iscsi --op new --mode target --tid=2 --targetname "$target_name"
+ # lun-0 is reserved by iSCSI
+ for i in {1..4}; do
+ tgtadm --lld iscsi --op new --mode logicalunit --tid 2 --lun "$i" -b "$mpoint/lun$i.img"
+ tgtadm --lld iscsi --op update --mode logicalunit --tid 2 --lun "$i"
+ expected_symlinks+=(
+ "/dev/disk/by-path/ip-$target_ip:$target_port-iscsi-$target_name-lun-$i"
+ )
+ done
+ tgtadm --lld iscsi --op bind --mode target --tid 2 -I ALL
+ # Configure the iSCSI initiator
+ iscsiadm --mode discoverydb --type sendtargets --portal "$target_ip" --discover
+ iscsiadm --mode node --targetname "$target_name" --portal "$target_ip:$target_port" --login
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Add all iSCSI devices into a LVM volume group, create two logical volumes,
+ # and check if necessary symlinks exist (and are valid)
+ lvm pvcreate -y "${expected_symlinks[@]}"
+ lvm pvs
+ lvm vgcreate "$vgroup" -y "${expected_symlinks[@]}"
+ lvm vgs
+ lvm vgchange -ay "$vgroup"
+ lvm lvcreate -y -L 4M "$vgroup" -n mypart1
+ lvm lvcreate -y -L 8M "$vgroup" -n mypart2
+ lvm lvs
+ udevadm wait --settle --timeout=30 "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2"
+ mkfs.ext4 -L mylvpart1 "/dev/$vgroup/mypart1"
+ udevadm wait --settle --timeout=30 "/dev/disk/by-label/mylvpart1"
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+ # Disconnect the iSCSI devices and check all the symlinks
+ iscsiadm --mode node --targetname "$target_name" --portal "$target_ip:$target_port" --logout
+ # "Reset" the DM state, since we yanked the backing storage from under the LVM,
+ # so the currently active VGs/LVs are invalid
+ dmsetup remove_all --deferred
+ # The LVM and iSCSI related symlinks should be gone
+ udevadm wait --settle --timeout=30 --removed "/dev/$vgroup" "/dev/disk/by-label/mylvpart1" "${expected_symlinks[@]}"
+ helper_check_device_symlinks "/dev/disk"
+ helper_check_device_units
+ # Reconnect the iSCSI devices and check if everything get detected correctly
+ iscsiadm --mode discoverydb --type sendtargets --portal "$target_ip" --discover
+ iscsiadm --mode node --targetname "$target_name" --portal "$target_ip:$target_port" --login
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}" "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2" "/dev/disk/by-label/mylvpart1"
+ helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
+ helper_check_device_units
+ # Cleanup
+ iscsiadm --mode node --targetname "$target_name" --portal "$target_ip:$target_port" --logout
+ tgtadm --lld iscsi --op delete --mode target --tid=2
+ umount "$mpoint"
+ rm -rf "$mpoint"
+}
+
+testcase_long_sysfs_path() {
+ local cursor link logfile mpoint
+ local expected_symlinks=(
+ "/dev/disk/by-label/data_vol"
+ "/dev/disk/by-label/swap_vol"
+ "/dev/disk/by-partlabel/test_swap"
+ "/dev/disk/by-partlabel/test_part"
+ "/dev/disk/by-partuuid/deadbeef-dead-dead-beef-000000000000"
+ "/dev/disk/by-uuid/deadbeef-dead-dead-beef-111111111111"
+ "/dev/disk/by-uuid/deadbeef-dead-dead-beef-222222222222"
+ )
+
+ # Create a cursor file to skip messages generated by udevd in initrd, as it
+ # might not be the same up-to-date version as we currently run (hence generating
+ # messages we check for later and making the test fail)
+ cursor="$(mktemp)"
+ journalctl --cursor-file="${cursor:?}" -n0 -q
+
+ # Make sure the test device is connected and show its "wonderful" path
+ stat /sys/block/vda
+ readlink -f /sys/block/vda/dev
+
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+
+ # Try to mount the data partition manually (using its label)
+ mpoint="$(mktemp -d /logsysfsXXX)"
+ mount LABEL=data_vol "$mpoint"
+ touch "$mpoint/test"
+ umount "$mpoint"
+ # Do the same, but with UUID and using fstab
+ echo "UUID=deadbeef-dead-dead-beef-222222222222 $mpoint ext4 defaults 0 0" >>/etc/fstab
+ systemctl daemon-reload
+ mount "$mpoint"
+ timeout 30 bash -c "until systemctl -q is-active '$mpoint'; do sleep .2; done"
+ test -e "$mpoint/test"
+ umount "$mpoint"
+
+ # Test out the swap partition
+ swapon -v -L swap_vol
+ swapoff -v -L swap_vol
+
+ udevadm settle
+
+ logfile="$(mktemp)"
+ # Check state of affairs after https://github.com/systemd/systemd/pull/22759
+ # Note: can't use `--cursor-file` here, since we don't want to update the cursor
+ # after using it
+ [[ "$(journalctl --after-cursor="$(<"$cursor")" -q --no-pager -o short-monotonic -p info --grep "Device path.*vda.?' too long to fit into unit name" | wc -l)" -eq 0 ]]
+ [[ "$(journalctl --after-cursor="$(<"$cursor")" -q --no-pager -o short-monotonic --grep "Unit name .*vda.?\.device\" too long, falling back to hashed unit name" | wc -l)" -gt 0 ]]
+ # Check if the respective "hashed" units exist and are active (plugged)
+ systemctl status --no-pager "$(readlink -f /sys/block/vda/vda1)"
+ systemctl status --no-pager "$(readlink -f /sys/block/vda/vda2)"
+ # Make sure we don't unnecessarily spam the log
+ { journalctl -b -q --no-pager -o short-monotonic -p info --grep "/sys/devices/.+/vda[0-9]?" _PID=1 + UNIT=systemd-udevd.service || :;} | tee "$logfile"
+ [[ "$(wc -l <"$logfile")" -lt 10 ]]
+
+ : >/etc/fstab
+ rm -fr "${cursor:?}" "${logfile:?}" "${mpoint:?}"
+}
+
+testcase_mdadm_basic() {
+ local i part_name raid_name raid_dev uuid
+ local expected_symlinks=()
+ local devices=(
+ /dev/disk/by-id/ata-foobar_deadbeefmdadm{0..4}
+ )
+
+ ls -l "${devices[@]}"
+
+ echo "Mirror raid (RAID 1)"
+ raid_name="mdmirror"
+ raid_dev="/dev/md/$raid_name"
+ part_name="${raid_name}_part"
+ uuid="aaaaaaaa:bbbbbbbb:cccccccc:00000001"
+ expected_symlinks=(
+ "$raid_dev"
+ "/dev/disk/by-id/md-name-H:$raid_name"
+ "/dev/disk/by-id/md-uuid-$uuid"
+ "/dev/disk/by-label/$part_name" # ext4 partition
+ )
+ # Create a simple RAID 1 with an ext4 filesystem
+ echo y | mdadm --create "$raid_dev" --name "$raid_name" --uuid "$uuid" /dev/disk/by-id/ata-foobar_deadbeefmdadm{0..1} -v -f --level=1 --raid-devices=2
+ udevadm wait --settle --timeout=30 "$raid_dev"
+ mkfs.ext4 -L "$part_name" "$raid_dev"
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ for i in {0..9}; do
+ echo "Disassemble - reassemble loop, iteration #$i"
+ mdadm -v --stop "$raid_dev"
+ udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
+ mdadm --assemble "$raid_dev" --name "$raid_name" -v
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ done
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Cleanup
+ mdadm -v --stop "$raid_dev"
+ udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
+
+ echo "Parity raid (RAID 5)"
+ raid_name="mdparity"
+ raid_dev="/dev/md/$raid_name"
+ part_name="${raid_name}_part"
+ uuid="aaaaaaaa:bbbbbbbb:cccccccc:00000101"
+ expected_symlinks=(
+ "$raid_dev"
+ "/dev/disk/by-id/md-name-H:$raid_name"
+ "/dev/disk/by-id/md-uuid-$uuid"
+ "/dev/disk/by-label/$part_name" # ext4 partition
+ )
+ # Create a simple RAID 5 with an ext4 filesystem
+ echo y | mdadm --create "$raid_dev" --name "$raid_name" --uuid "$uuid" /dev/disk/by-id/ata-foobar_deadbeefmdadm{0..2} -v -f --level=5 --raid-devices=3
+ udevadm wait --settle --timeout=30 "$raid_dev"
+ mkfs.ext4 -L "$part_name" "$raid_dev"
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ for i in {0..9}; do
+ echo "Disassemble - reassemble loop, iteration #$i"
+ mdadm -v --stop "$raid_dev"
+ udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
+ mdadm --assemble "$raid_dev" --name "$raid_name" -v
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ done
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Cleanup
+ mdadm -v --stop "$raid_dev"
+ udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
+ helper_check_device_units
+
+ echo "Mirror + parity raid (RAID 10) + multiple partitions"
+ raid_name="mdmirpar"
+ raid_dev="/dev/md/$raid_name"
+ part_name="${raid_name}_part"
+ uuid="aaaaaaaa:bbbbbbbb:cccccccc:00001010"
+ expected_symlinks=(
+ "$raid_dev"
+ "/dev/disk/by-id/md-name-H:$raid_name"
+ "/dev/disk/by-id/md-uuid-$uuid"
+ "/dev/disk/by-label/$part_name" # ext4 partition
+ # Partitions
+ "${raid_dev}1"
+ "${raid_dev}2"
+ "${raid_dev}3"
+ "/dev/disk/by-id/md-name-H:$raid_name-part1"
+ "/dev/disk/by-id/md-name-H:$raid_name-part2"
+ "/dev/disk/by-id/md-name-H:$raid_name-part3"
+ "/dev/disk/by-id/md-uuid-$uuid-part1"
+ "/dev/disk/by-id/md-uuid-$uuid-part2"
+ "/dev/disk/by-id/md-uuid-$uuid-part3"
+ )
+ # Create a simple RAID 10 with an ext4 filesystem
+ echo y | mdadm --create "$raid_dev" --name "$raid_name" --uuid "$uuid" /dev/disk/by-id/ata-foobar_deadbeefmdadm{0..3} -v -f --level=10 --raid-devices=4
+ udevadm wait --settle --timeout=30 "$raid_dev"
+ # Partition the raid device
+ # Here, 'udevadm lock' is meaningless, as udevd does not lock MD devices.
+ sfdisk --wipe=always "$raid_dev" <<EOF
+label: gpt
+
+uuid="deadbeef-dead-dead-beef-111111111111", name="mdpart1", size=8M
+uuid="deadbeef-dead-dead-beef-222222222222", name="mdpart2", size=32M
+uuid="deadbeef-dead-dead-beef-333333333333", name="mdpart3", size=16M
+EOF
+ udevadm wait --settle --timeout=30 "/dev/disk/by-id/md-uuid-$uuid-part2"
+ mkfs.ext4 -L "$part_name" "/dev/disk/by-id/md-uuid-$uuid-part2"
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ for i in {0..9}; do
+ echo "Disassemble - reassemble loop, iteration #$i"
+ mdadm -v --stop "$raid_dev"
+ udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
+ mdadm --assemble "$raid_dev" --name "$raid_name" -v
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ done
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Cleanup
+ mdadm -v --stop "$raid_dev"
+ # Check if all expected symlinks were removed after the cleanup
+ udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
+ helper_check_device_units
+}
+
+testcase_mdadm_lvm() {
+ local part_name raid_name raid_dev uuid vgroup
+ local expected_symlinks=()
+ local devices=(
+ /dev/disk/by-id/ata-foobar_deadbeefmdadmlvm{0..4}
+ )
+
+ ls -l "${devices[@]}"
+
+ raid_name="mdlvm"
+ raid_dev="/dev/md/$raid_name"
+ part_name="${raid_name}_part"
+ vgroup="${raid_name}_vg"
+ uuid="aaaaaaaa:bbbbbbbb:ffffffff:00001010"
+ expected_symlinks=(
+ "$raid_dev"
+ "/dev/$vgroup/mypart1" # LVM partition
+ "/dev/$vgroup/mypart2" # LVM partition
+ "/dev/disk/by-id/md-name-H:$raid_name"
+ "/dev/disk/by-id/md-uuid-$uuid"
+ "/dev/disk/by-label/$part_name" # ext4 partition
+ )
+ # Create a RAID 10 with LVM + ext4
+ echo y | mdadm --create "$raid_dev" --name "$raid_name" --uuid "$uuid" /dev/disk/by-id/ata-foobar_deadbeefmdadmlvm{0..3} -v -f --level=10 --raid-devices=4
+ udevadm wait --settle --timeout=30 "$raid_dev"
+ # Create an LVM on the MD
+ lvm pvcreate -y "$raid_dev"
+ lvm pvs
+ lvm vgcreate "$vgroup" -y "$raid_dev"
+ lvm vgs
+ lvm vgchange -ay "$vgroup"
+ lvm lvcreate -y -L 4M "$vgroup" -n mypart1
+ lvm lvcreate -y -L 8M "$vgroup" -n mypart2
+ lvm lvs
+ udevadm wait --settle --timeout=30 "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2"
+ mkfs.ext4 -L "$part_name" "/dev/$vgroup/mypart2"
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ # Disassemble the array
+ lvm vgchange -an "$vgroup"
+ mdadm -v --stop "$raid_dev"
+ udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Reassemble it and check if all required symlinks exist
+ mdadm --assemble "$raid_dev" --name "$raid_name" -v
+ udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
+ helper_check_device_symlinks
+ helper_check_device_units
+ # Cleanup
+ lvm vgchange -an "$vgroup"
+ mdadm -v --stop "$raid_dev"
+ # Check if all expected symlinks were removed after the cleanup
+ udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
+ helper_check_device_units
+}
+
+udevadm settle
+udevadm control --log-level debug
+lsblk -a
+
+echo "Check if all symlinks under /dev/disk/ are valid (pre-test)"
+helper_check_device_symlinks
+
+# TEST_FUNCTION_NAME is passed on the kernel command line via systemd.setenv=
+# in the respective test.sh file
+if ! command -v "${TEST_FUNCTION_NAME:?}"; then
+ echo >&2 "Missing verification handler for test case '$TEST_FUNCTION_NAME'"
+ exit 1
+fi
+
+echo "TEST_FUNCTION_NAME=$TEST_FUNCTION_NAME"
+"$TEST_FUNCTION_NAME"
+udevadm settle
+
+echo "Check if all symlinks under /dev/disk/ are valid (post-test)"
+helper_check_device_symlinks
+
+udevadm control --log-level info
+
+systemctl status systemd-udevd
+
+touch /testok
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 21:11:52 +0000