shill/bin/set_wifi_regulatory

#!/bin/sh
#
# Copyright 2015 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# UDEV event helper script that sets the system's WiFi regulatory domain
# from VPD data.

set -e

# TODO(quiche): When fixing crbug.com/474657, we may need to remove
# toupper().
country_code=$(
  # Example output of dump_vpd_log --stdout:
  # "initial_timezone"="America/Los_Angeles"
  # "region"="us"
  dump_vpd_log --stdout |
  awk -F'=' \
    '/^"region"="[-0-9a-zA-Z.]+"$/ {
       gsub(/"/, "", $2)
       print toupper($2)
       exit
     }'
)

# TODO(quiche): Replace this code using the regions database and jq.
# crbug.com/474657.
country_code="${country_code%%.*}"
case "${country_code}" in
  "LATAM-ES-419")
    country_code="MX"
    ;;
  "NORDIC")
    country_code="SE"
    ;;
esac

if [ -n "${country_code}" ]; then
  iw reg set "${country_code}"
fi