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#!/bin/bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -ex
set -o pipefail
# tests for udev watch
function check_validity() {
local f ID_OR_HANDLE
for f in /run/udev/watch/*; do
ID_OR_HANDLE="$(readlink "$f")"
test -L "/run/udev/watch/${ID_OR_HANDLE}"
test "$(readlink "/run/udev/watch/${ID_OR_HANDLE}")" = "$(basename "$f")"
done
}
function check() {
for _ in {1..2}; do
systemctl restart systemd-udevd.service
udevadm control --ping
udevadm settle
check_validity
for _ in {1..2}; do
udevadm trigger -w --action add --subsystem-match=block
check_validity
done
for _ in {1..2}; do
udevadm trigger -w --action change --subsystem-match=block
check_validity
done
done
}
mkdir -p /run/udev/rules.d/
cat >/run/udev/rules.d/00-debug.rules <<EOF
SUBSYSTEM=="block", KERNEL=="sda*", OPTIONS="log_level=debug"
EOF
cat >/run/udev/rules.d/50-testsuite.rules <<EOF
ACTION=="add", SUBSYSTEM=="block", KERNEL=="sda", OPTIONS:="watch"
EOF
check
MAJOR=$(udevadm info /dev/sda | grep -e '^E: MAJOR=' | sed -e 's/^E: MAJOR=//')
MINOR=$(udevadm info /dev/sda | grep -e '^E: MINOR=' | sed -e 's/^E: MINOR=//')
test -L "/run/udev/watch/b${MAJOR}:${MINOR}"
cat >/run/udev/rules.d/50-testsuite.rules <<EOF
ACTION=="change", SUBSYSTEM=="block", KERNEL=="sda", OPTIONS:="nowatch"
EOF
check
MAJOR=$(udevadm info /dev/sda | grep -e '^E: MAJOR=' | sed -e 's/^E: MAJOR=//')
MINOR=$(udevadm info /dev/sda | grep -e '^E: MINOR=' | sed -e 's/^E: MINOR=//')
test ! -e "/run/udev/watch/b${MAJOR}:${MINOR}"
rm /run/udev/rules.d/00-debug.rules
rm /run/udev/rules.d/50-testsuite.rules
udevadm control --reload
systemctl reset-failed systemd-udevd.service
exit 0
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