blob: 7b12f82b37105bbc955fded2136d3b56500f5233 [file] [log] [blame]
# Copyright 2017 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.
# A common library for factory shim.
# Return the value for a given key in the override lsb-release file.
# If no value is found, checks in the standard lsb-release file.
# Check factory LSB file.
local value="$(grep "^$1" "${FACTORY_LSB_FILE}" | cut -d = -f 2-)"
# TODO(hungte) Support dev_image/etc/lsb-release if needed.
if [ -z "$value" ]; then
value="$(grep "^$1" /etc/lsb-release | cut -d = -f 2-)"
echo "${value}"
# Bring up network
bringup_network() {
# Probe USB Ethernet devices.
local module
local module_name
local result=1
for module in /lib/modules/*/kernel/drivers/net/usb/*; do
module_name="$(basename "${module%.ko}")"
modprobe ${module_name}
# Try to bring up network and get an IP address on each Ethernet device.
for iface in $(ifconfig -a | grep -Eo 'eth[0-9]+'); do
ifconfig ${iface} up || true
udhcpc -t 3 -f -q -n -i ${iface} -s /etc/udhcpc.script && result=0
return ${result}
# Try to register into Overlord server if available.
register_to_overlord() {
local omaha_url="$1"
local tty_file="$2"
local log_file="$3"
local machine_id=""
local server="${omaha_url#*://}"
server="${server%% }"
server="${server## }"
[ -n "${server}" ] || return 1
# Build machine ID by MAC addresses.
local eth="$(netstat -r | grep '^default ')"
machine_id="$(ip link show ${eth##* } | grep 'link/ether' |
sed 's/.*ether //;s/ brd .*//' | tr '\n' ',' | sed 's/,$//')"
[ -n "${machine_id}" ] || machine_id="UnknownMachineId.$(uuidgen 2>/dev/null)"
local header_tty="$(mktemp)" header_log="$(mktemp)"
local header='{"name":"register",
printf "${header}" "Console" "${machine_id}" "1" >"${header_tty}"
printf "${header}" "DebugLog" "${machine_id}" "0" >"${header_log}"
# nc@busybox may have problem in receiving data from pipe (due to buffer size
# and timeout), so we should write the command into a scripting file and let
# busybox create the pipe internally.
local tty_piper="$(mktemp)" log_piper="$(mktemp)"
echo "tail -n +0 -qF ${header_tty} ${tty_file}" >"${tty_piper}"
echo "tail -n +0 -qF ${header_log} ${log_file}" >"${log_piper}"
chmod a+rx "${tty_piper}" "${log_piper}"
local connect_cmd="while true; do busybox nc ${server} 4455 -e %s;
sleep 10; done"
if [ -n "${tty_file}" ]; then
setsid sh -c "$(printf "${connect_cmd}" ${tty_piper})" &
setsid sh -c "$(printf "${connect_cmd}" ${log_piper})" &