test/units/TEST-17-UDEV.06.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: LGPL-2.1-or-later
   3 set -ex
   4 set -o pipefail
   5
   6 # tests for udev watch
   7
   8 function check_validity() {
   9     local f ID_OR_HANDLE
  10
  11     for f in /run/udev/watch/*; do
  12         ID_OR_HANDLE="$(readlink "$f")"
  13         test -L "/run/udev/watch/${ID_OR_HANDLE}"
  14         test "$(readlink "/run/udev/watch/${ID_OR_HANDLE}")" = "$(basename "$f")"
  15     done
  16 }
  17
  18 function check() {
  19     for _ in {1..2}; do
  20         systemctl restart systemd-udevd.service
  21         udevadm control --ping
  22         udevadm settle
  23         check_validity
  24
  25         for _ in {1..2}; do
  26             udevadm trigger -w --action add --subsystem-match=block
  27             check_validity
  28         done
  29
  30         for _ in {1..2}; do
  31             udevadm trigger -w --action change --subsystem-match=block
  32             check_validity
  33         done
  34     done
  35 }
  36
  37 mkdir -p /run/udev/rules.d/
  38
  39 cat >/run/udev/rules.d/00-debug.rules <<EOF
  40 SUBSYSTEM=="block", KERNEL=="sda*", OPTIONS="log_level=debug"
  41 EOF
  42
  43 cat >/run/udev/rules.d/50-testsuite.rules <<EOF
  44 ACTION=="add", SUBSYSTEM=="block", KERNEL=="sda", OPTIONS:="watch"
  45 EOF
  46
  47 check
  48
  49 ROOTDEV="$(bootctl -RR)"
  50
  51 MAJOR="$(udevadm info "$ROOTDEV" | grep -e '^E: MAJOR=' | sed -e 's/^E: MAJOR=//')"
  52 MINOR="$(udevadm info "$ROOTDEV" | grep -e '^E: MINOR=' | sed -e 's/^E: MINOR=//')"
  53 test -L "/run/udev/watch/b${MAJOR}:${MINOR}"
  54
  55 cat >/run/udev/rules.d/50-testsuite.rules <<EOF
  56 ACTION=="change", SUBSYSTEM=="block", KERNEL=="sda", OPTIONS:="nowatch"
  57 EOF
  58
  59 check
  60
  61 MAJOR="$(udevadm info "$ROOTDEV" | grep -e '^E: MAJOR=' | sed -e 's/^E: MAJOR=//')"
  62 MINOR="$(udevadm info "$ROOTDEV" | grep -e '^E: MINOR=' | sed -e 's/^E: MINOR=//')"
  63 test ! -e "/run/udev/watch/b${MAJOR}:${MINOR}"
  64
  65 rm /run/udev/rules.d/00-debug.rules
  66 rm /run/udev/rules.d/50-testsuite.rules
  67
  68 udevadm control --reload
  69 systemctl reset-failed systemd-udevd.service
  70
  71 exit 0