ADB VV 2220 - Read statistics via bash

My beloved Pirelli PRGAV4202N modem died and I had to replace it with the (A1 branded) ADB VV2220 (v2/Firmware: E_9.4.1). In the past I've already created a couple of scripts to read current statistics, etc. but these are worthless now. Time for some hands-on!

So my first goal was to read the Diagnostic/Interfaces summary, but it turned out to be a little more complicated as expected, as the logon process requires some additional form fields (sha256 hash of the password, etc.) which are pre filled using javascript. In order to mimic this behaviour we first have to extract some values from the login page:


page=$(curl -v -k http://10.0.0.138/ui/login 2>&1)
nonce=$(echo "$page" | grep 'name="nonce"' | egrep -o 'value="(.*)"' | sed -n -E 's/value="(.*)"/\1/p')
code1=$(echo "$page" | grep 'name='\''code1'\''' | egrep -o 'value='\''(.*)'\''' | sed -n -E 's/value='\''(.*)'\''/\1/p')
code3=$(echo "$page" | grep 'name='\''code3'\''' | egrep -o 'value='\''(.*)'\''' | sed -n -E 's/value='\''(.*)'\''/\1/p')

Now I use the PHP function "hash_hmac" to create the sha256 hash (openssl could be used as well):

passwd=$(php -r "echo hash_hmac('sha256','Austria&Eur0','$nonce');")

Using the hashed password we can now sign in and fetch the new session ID:

sid=$(curl -k -v -X POST -H "Content-Type: application/x-www-form-urlencoded" -d "login=Login&userName=Telek0m&userPwd=$passwd&nonce=$nonce&code1=$code1&code3=$code3" http://$1/ui/login 2>&1 | grep "Set-Cookie:" | sed -n -E 's/.*Set-Cookie:.*sid=([^;]*).*/\1/p')

Using the session ID you have switch to enhanced mode first (seems to be requires as otherwise calling the diagnostics URI's ins't working), then fetch the "Diagnostic/Interfaces summary" and output it using html2text:

echo $(curl -k -v --header "Cookie: sid=$sid" "http://$1/ui/dboard?level=2")

echo "$(curl --header "Cookie: sid=$sid" "http://$1/ui/dboard/diagnostics/ifsummary?backto=diagnostics&p=1" 2>/dev/null | html2text -style pretty -o - )"

Voila here it is:

Interface summary

I've add the complete script (output is refreshed every 5s) below and A1 users in Austria can call it (others most likely have to adjust the command line parameters):

./adbstats.sh "10.0.0.138" "Telek0m" "Austria&Eur0"

I hope this post inspired you to create some fancy scripts as well (e.g. periodic reboot, etc.) and to share them with the community.

Cheers

≠ logic

adbstats.sh

#!/bin/bash

page=$(curl -v -k http://$1/ui/login 2>&1)

nonce=$(echo "$page" | grep 'name="nonce"' | egrep -o 'value="(.*)"' | sed -n -E 's/value="(.*)"/\1/p')

code1=$(echo "$page" | grep 'name='\''code1'\''' | egrep -o 'value='\''(.*)'\''' | sed -n -E 's/value='\''(.*)'\''/\1/p')

code3=$(echo "$page" | grep 'name='\''code3'\''' | egrep -o 'value='\''(.*)'\''' | sed -n -E 's/value='\''(.*)'\''/\1/p')

# Use php to create hash

passwd=$(php -r "echo hash_hmac('sha256','$3','$nonce');")

sid=$(curl -k -v -X POST -H "Content-Type: application/x-www-form-urlencoded" -d "login=Login&userName=$2&userPwd=$passwd&nonce=$nonce&code1=$code1&code3=$code3" http://$1/ui/login 2>&1 | grep "Set-Cookie:" | sed -n -E 's/.*Set-Cookie:.*sid=([^;]*).*/\1/p')

# Switch to advanced mode

echo $(curl -k -v --header "Cookie: sid=$sid" "http://$1/ui/dboard?level=2")

while true

do

    clear

    echo "$(curl --header "Cookie: sid=$sid" "http://$1/ui/dboard/diagnostics/ifsummary?backto=diagnostics&p=1" 2>/dev/null | html2text -style pretty -o - )"

    Sleep 5

done