Berkeley RadWatch Dosimeter Network

LBL / UC Berkeley

Author: Navrit Bal

Navrit Bal, Tigran Ter-Stepanyan, Mark Trudel, Nathan Richner

Joseph Curtis, Ryan Pavlovsky, Ali Hanks

Kai Vetter

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Please take note

This readme may not be fully up to date. (see #23) For a to-do, see the issue list in GitHub and Waffle.

For testing purposes

Temporarily add the repo to your path

export PYTHONPATH=`pwd`:$PYTHONPATH

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What goes where?

This is all contained in the GitHub repository, stored by convention in 'dosenet' in the user's home folder. eg. cd ~/dosenet/ or cd ~/git/dosenet would get you where you want to be. This repo should always be cloned by SSH:

git clone [email protected]:bearing/dosenet.git

Raspberry Pi

udp_sender.py filename(-f) (required) --test(-t) (Opt.) (Opt.[str]) --led_counts (Opt.[int]) --led_power (Opt.[int]) --led_network (Opt.[int]) --ip (Opt.[str])

Example:

  sudo ./udp_sender.py -f config-files/lbl.csv

Must be launched as sudo (it accesses GPIO pins and low-level networking APIs) sudo ./udp_sender.py

dosimeter.py

Usage:

Test: python dosimeter.py

Supporting class for the UDP_sender class. Handles actual radiation detection logic and passes through to the sender.

config-files/*.csv

Each station has it's own CSV file (Headers: stationID, hash, lat, long).There are test CSV files available. This data is obtained from the database - you require database access to start sending authenticated packets from a new dosimeter. This is purposely not automated - human checks should be and are required for adding new dosimeters.

Header format (static): stationID,message_hash,lat,long

Example data (completely database (stations table) dependant: 1,7c756767412b5346ad79bb9a5cf56f51,37.876886,-122.252211

A complete sample valid CSV file:

stationID,message_hash,lat,long

1,7c756767412b5346ad79bb9a5cf56f51,37.876886,-122.252211

ssh-keys/id_rsa_dosenet.private

A private key used for the 'half-encrypted' stage between Raspberry Pis and the database server (GRIM).

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DoseNet server - Database & Listener

dosenet.dhcp.lbl.gov

Used to be grim.nuc.berkeley.edu

makeGeoJSON.py

Usage:

Automatic: crontab operation

Manual: python makeGeoJSON.py

Input: Indirectly queries database - no command line arguments accepted.

Output: output.geojson

Updates Plot.ly graphs via cron job operation - currently set to every 5 minutes. Copies (via scp) the produced GeoJSON file to Kepler - at end of run-time.

udp_injector.py

Usage:

Manual: python udp_injector.py

tmux: tmux a -t UDP_injector; python udp_injector.py; Ctrl+b, d

screen: screen python udp_injector.py; Ctrl+a, d

Input: Encrypted UDP packets from RPi's

Output: Database entries

Data collection and storage: Listens, decrypts, parses, injects incoming UDP packets from the RPi's.

addDosimeterToDB.py

Usage:

Manual:

Input:

Output:

Stuff

deleteDosimeter.py

Usage:

Manual:

Input:

Output:

Stuff

/mysql/backup_database.sh  all|stations|data

BASH script that backups subsets of the database (tables) or the whole thing to .sql files in /home/dosenet/ (~/). Example:

	./database_backup.sh all
	Password: ne170groupSpring2015  

Output files: *.sql in /home/dosenet/ (~/).

  backup_all_dosenet.sql
  backup_dosnet_dosenet.sql
  backup_stations_dosenet.sql

inject-test-data.py

Usage:

Manual:

Input:

Output:

Stuff

email_message.py

Usage:

Manual:

Input:

Output:

Stuff

dosenet.sh

Usage:

Automatic (after copy)

Input: start|stop|test

Output: Starts UDP_sender.py with options on boot to normal Linux runlevels (2, 3, 4, 5)

Usage: cp dosenet.sh /etc/init.d/

/etc/init.d/dosenet.sh start|stop|test

Change configuration (CONFIGFILE variable) in /etc/init.d/dosenet.sh (could use nano, vi, vim, emacs etc.) to match the new dosimeter CSV file as in config-files/

Eg. CONFIGFILE=config.csv --> CONFIGFILE=lbl.csv

Then use the update-rc.d command detailed below to update symbolic links etc. so it starts up correctly.

sudo update-rc.d /etc/init.d/dosenet.sh defaults
I think there's meant to be another line here????

????

????

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DECF Kepler - Website & Drupal

/html/*

Copied into Drupal interface for each file.

~/.ssh/id_rsa_dosenet.pub

ssh-keys/id_rsa_dosenet.pub - needs to be renamed or appended (>>) to authorized_keys and id_rsa.pub

~/.ssh/id_rsa

Rename the ssh-keys/id_rsa kepler\ private\ key to ~/.ssh/id_rsa

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Appendix

Logic for demonstrating encryption code

Successful inject

• RPi - open UDP sender

    sudo ./udp_sender.py
  
  • Print pre-encrypted message
  • Print encrypted message
  • Print Sent to: Address @ Port

• DoseNet server - open UDP injector

    No logging:  python udp_injector.py
    Log to file: ----------"----------- > udp_injector.log
  
  • Print encrypted message
  • Print decrypted message
  • Inject into database
    • Print if fail

Failed injection

The script is verbose on encountering errors.

• Database is offline

• SQL injection

• Invalid format

  • Random data (DDoS possibility)

• Valid format, wrong data

  • No station database entry
  • Wrong stationID, Lat, Long, Message hash ~= database hash