1#!/bin/bash 2# Copyright 2022 Google LLC 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15 16# Wait until a well known service is network available 17echo "Waiting for network reachability" >&2 18while ! ping -c 1 -W 1 2001:4860:4860::8888 >/dev/null 2>&1; do 19 sleep 1 20done 21wait_min=5 22echo "Network is reachable, waiting $wait_min minutes" >&2 23# Wait 5 minutes for any potential DHCP that hasn't landed yet 24sleep $((60 * wait_min)) 25# If the DHCP configuration process is running, wait for it to finish 26if pid="$(cat /run/gbmc-br-dhcp.pid 2>/dev/null)"; then 27 echo "DHCP still running ($pid), waiting" >&2 28 while [[ -e /proc/$pid ]]; do 29 sleep 1 30 done 31fi 32echo "Stopping DHCP processing" >&2 33systemctl stop --no-block gbmc-br-dhcp 34