Script to run WPS on pi

gistfile1.txt

#!/bin/bash
# automate WPS Push Button using wpa_supplicant
# see also: https://w1.fi/cgit/hostap/plain/wpa_supplicant/README-WPS
# to make this run at startup, create a systemd unit that has "Requires=wpa_supplicant.service" and "After=wpa_supplicant.service"

INHIBIT="/etc/wpa_supplicant/wps_inhibit"
# Should probably sleep here as well and check the status after 10s or so. If not COMPLETED either wifi is down or wifi creds changed.
if [ -e $INHIBIT ]; then
  exit 0
fi

while /bin/true; do
  state="$( wpa_cli status | sed -n 's/wpa_state=\(.*\)/\1/p')"
  if [ "$state" = "COMPLETED" ]; then
    touch $INHIBIT
    exit 0
  fi
  wpa_cli wps_pbc
  # wps_pbc returns immediately but will start an action that lasts 2 minutes
  sleep 120 
done