#!/bin/sh
# 2022-01-20, Nico Schottelius
# See https://ungleich.ch/u/products/device-ipv6-box/

if [ $# -ne 1 ]; then
    echo "$0 address"
    echo "    address: connect to this address"
    exit 1
fi

set -x

device_ip=$1; shift

# openwrt
version=21.02.1
filename=openwrt-${version}-ramips-mt76x8-glinet_microuter-n300-squashfs-sysupgrade.bin

# don't care about other/old known_host entries
ssh-keygen  -R ${device_ip}

while ! ping -c1 ${device_ip}; do
    echo "Cannot ping $device_ip yet - waiting"
    sleep 1
done

cat ~/.ssh/id_rsa.pub | ssh root@${device_ip} "cat > /etc/dropbear/authorized_keys"

# Don't re-download if we already have it
wget -c http://downloads.openwrt.org/releases/${version}/targets/ramips/mt76x8/${filename}

if echo $device_ip | grep -q :; then
    scp_ip="[$device_ip]"
else
    scp_ip="$device_ip"
fi

scp ${filename} root@${scp_ip}:/tmp
ssh root@${device_ip} "sysupgrade -n /tmp/*.bin"