test/units/TEST-17-UDEV.SYSTEMD_WANTS-escape.sh

   1 #!/usr/bin/env bash
   2 # SPDX-License-Identifier: LGPL-2.1-or-later
   3 # shellcheck disable=SC2317
   4 set -ex
   5 set -o pipefail
   6
   7 # shellcheck source=test/units/util.sh
   8 . "$(dirname "$0")"/util.sh
   9
  10 # This is a test case for #16735.
  11
  12 IFNAME=test-netif-foo
  13
  14 at_exit() {
  15     set +e
  16
  17     rm -f /tmp/output-i /tmp/output-I
  18
  19     rm -rf /run/udev/rules.d/
  20     udevadm control --reload
  21
  22     rm -f /run/systemd/system/test@.service
  23     systemctl daemon-reload
  24
  25     ip link del "$IFNAME"
  26 }
  27
  28 trap at_exit EXIT
  29
  30 udevadm settle --timeout 30
  31
  32 mkdir -p /run/systemd/system/
  33 cat >/run/systemd/system/test@.service <<EOF
  34 [Service]
  35 Type=oneshot
  36 ExecStart=bash -xec 'echo "i=%i" >/tmp/output-i; echo "I=/%I" >/tmp/output-I'
  37 RemainAfterExit=yes
  38 EOF
  39
  40 systemctl daemon-reload
  41
  42 mkdir -p /run/udev/rules.d/
  43 cat >/run/udev/rules.d/99-testsuite.rules <<EOF
  44 SUBSYSTEM=="net", KERNEL=="${IFNAME}", ACTION=="add", OPTIONS="log_level=debug", \
  45   PROGRAM="/usr/bin/systemd-escape -p %S%p", ENV{SYSTEMD_WANTS}+="test@%c.service"
  46 EOF
  47
  48 udevadm control --reload
  49
  50 ip link add "$IFNAME" type dummy
  51 SYSPATH="/sys$(udevadm info --query=property --property DEVPATH --value "/sys/class/net/${IFNAME}")"
  52 ESCAPED=$(systemd-escape -p "${SYSPATH}")
  53 SHELL_ESCAPED=$(printf '%q' "${ESCAPED}")
  54 assert_eq "$(systemd-escape -u -p "${ESCAPED}")" "${SYSPATH}"
  55
  56 udevadm wait --timeout 30 --settle "/sys/class/net/${IFNAME}"
  57 assert_eq "$(udevadm info --query=property --property SYSTEMD_WANTS --value "/sys/class/net/${IFNAME}")" "test@${ESCAPED}.service"
  58 # The value shown by systemctl is doubly escaped and quoted.
  59 assert_eq "$(systemctl show -p Wants --value "${ESCAPED}.device")" "\"test@${SHELL_ESCAPED}.service\""
  60
  61 timeout 30 bash -c 'until [[ -s /tmp/output-i ]] && [[ -s /tmp/output-I ]]; do sleep .5; done'
  62 assert_eq "$(cat /tmp/output-i)" "i=${ESCAPED}"
  63 assert_eq "$(cat /tmp/output-I)" "I=${SYSPATH}"
  64
  65 exit 0