RouterOS address-list updater

routeros_address_list_update.sh

#!/bin/bash

#echo -n Password /admin@192.168.0.1/ :
#read -s password
password="{Enter Your Password Here or Enable above 2 line}"


ip_bits(){
	z=$1;
	a=$(echo "l($z)/l(2)" | bc -l | awk '{print int($1)}');
	return $((32-$a));
}

ip_add () {
	ip=$1;
	sshpass -p "$password" ssh admin@192.168.0.1 "ip firewall address-list add address=$ip list=mn" < /dev/null
}

ip_remove () {
	ip=$1;
	sshpass -p "$password" ssh admin@192.168.0.1 "ip firewall address-list remove [find list=mn address=$ip]" < /dev/null
}

echo $'\n--- fetching new list ---\n';

new_list=$(curl --silent https://ftp.apnic.net/stats/apnic/delegated-apnic-latest | grep '|MN|ipv4|' | awk -F'|' '{print $4 " " $5}'); # 218.100.84.0 256
#new_list=$(cat /home/hurlee/Downloads/delegated-apnic-latest.txt | grep '|MN|ipv4|' | awk -F'|' '{print $4 " " $5}'); # 218.100.84.0 256
updated_list='';

while IFS= read -r line; do
	ip=$(echo "$line" | awk '{print $1}');
        ip_count=$(echo "$line" | awk '{print $2}');
	ip_bits $ip_count;
	ip_bits="$?";
	line="$ip/$ip_bits";
	if [ -z "$updated_list" ] 
	then
		updated_list="$line";
	else
		updated_list="$updated_list"$'\n'"$line";
	fi
done <<< "$new_list";

echo $'\n--- fetching currently active list ---\n';

old_list=$(sshpass -p "$password" ssh admin@192.168.0.1 "ip firewall address-list print" | grep mn | awk '{print $3}'); # 218.100.84.0/24

echo $'\n--- finding no longer valid ip from currently active list ---\n';

while IFS= read -r line; do
	if [[ ! $updated_list =~ "$line" ]]
	then
	   echo "del $line";
	   ip_remove "$line";
	fi
done <<< "$old_list";

echo $'\n--- finding new ip from new list ---\n';

while IFS= read -r line; do
	if [[ ! $old_list =~ "$line" ]]
	then
	   echo "add $line";
	   ip_add "$line";
	fi
done <<< "$updated_list";