#!/usr/bin/bash
#IF=eno1
IF=enp0s25
#DRIVER=`lshw -C network | grep driver | tr ' ' '\012' | fgrep 'driver=' | cut -d'=' -f2`
DRIVER=e1000e

function reset_ethernet {

    echo "RESETING ETHERNET..."
    echo "STATUS BEFORE anyting:"
    /usr/sbin/systemctl status networking.service;
    
    /usr/sbin/ip link set $1 down
    /usr/sbin/ip a flush dev $1

    /usr/sbin/modprobe -r $DRIVER
    /usr/sbin/modprobe $DRIVER

    /usr/sbin/ip link set $IF down
    echo 1 | sudo tee /sys/bus/pci/rescan
    /usr/sbin/ip link set $IF up 

    echo "STATUS BEFORE systemctl restart"
    /usr/sbin/systemctl status networking.service;
    /usr/sbin/systemctl restart networking.service;
    echo "STATUS AFTER"
    /usr/sbin/systemctl status networking.service;
}

touch /var/log/network-keep-alive-run.log


# 
if ! timeout 10 ping -c 3 -W 2 9.9.9.9 > /dev/null 2>&1; then
    echo "jh: Ping/network failed or timed out. Triggering reset." | logger -p local0.info -t network-keep-alive
    touch /var/log/network-keep-alive-reset.log
    reset_ethernet "$IF" | logger -p local0.info -t network-keep-alive -f /var/log/network-keep-alive-reset.log $IF;
fi


# cat /sys/module/pcie_aspm/parameters/policy
# [default] performance powersave powersupersave