rescue-ap

#!/bin/sh /etc/rc.common
#
# (C) 2024 Hajo Noerenberg
#
# http://www.noerenberg.de/
# https://github.com/hn/linkplay-a31
#

START=99

rescueap_watchdog() {

	logger -t rescue-ap "Delaying check for network connectivity"
	sleep 3m

	logger -t rescue-ap "Checking for network connectivity (default route)"

	route -n | grep -q ^0.0.0.0
	if [ $? -eq 0 ]; then
		logger -t rescue-ap "Network connectivity is ok, exiting"
		/etc/init.d/sysntpd restart
		exit 0
	fi

	logger -t rescue-ap "No network connectivity, enabling rescue access point"

	/etc/init.d/network stop
	[ -x /etc/init.d/firewall ] && /etc/init.d/firewall stop
	iw phy phy0 interface add phy0-ap0 type __ap
	ip addr add 192.168.31.1/24 dev phy0-ap0
	ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- \
		/usr/sbin/hostapd -B -s -g /var/run/hostapd/global /etc/hostapd-rescue.conf
	logger -t rescue-ap "Successfully setup rescue access point"

	sleep 10m
	if [ -f /tmp/rescue-ap ]; then
		logger -t rescue-ap "Admin login detected, exiting"
		exit 0
	fi

	logger -t rescue-ap "Timeout, rebooting system"
	reboot
}

boot() {
	mount | grep -q squashfs
	if [ $? -eq 0 ]; then
		rescueap_watchdog &
	else
		logger -t rescue-ap "No rescue access point for system booted from RAM"
	fi
}