Wifi Pi Survey

Project documentation: http://mdubuc.freeshell.org/WifiPiSurvey

Requirements

The fmt module must be built and installed from source.

git clone https://github.com/fmtlib/fmt.git && cd fmt

mkdir _build && cd _build
cmake ..

make -j$(nproc)
sudo make install

Once fmt is built and installed, the following packages must be installed on the Raspberry Pi to be able to build this project:

sudo apt-get install cmake sqlite3 libsqlite3-dev gpsd libgps-dev libpcap-dev libpcre3-dev libgtest-dev wireshark

Build instructions

mkdir build
cd build
cmake ..
make
sudo make install

Enabling I2C

To enable I2C, follow instructions on this page: https://www.raspberrypi-spy.co.uk/2014/11/enabling-the-i2c-interface-on-the-raspberry-pi/

Here is a summary of the instructions on that page. Run raspi-config to enable I2C interface:

sudo raspi-config

Select Interface Options menu

Select I2C menu

Enable I2C

Reboot

sudo reboot

Install utilities:

sudo apt-get install python-smbus i2c-tools

Reboot

sudo reboot

To verify if I2C module is loaded:

lsmod | grep i2c_

Module i2c_bcm2708 should appear in this list.

Test I2C:

To see where sensor is connected (Model A, B Rev 2 or B+):

sudo i2cdetect -y 1

Use 0 instead of 1 for Model B Rev 1.

To retrieve and change register value:

sudo i2cget -y 1 0x2a 0x00

sudo i2cset -y 1 0x2a 0x00 0x01

Enabling GPIO

sudo apt-get install wiringpi

To test out GPIO:

gpio -g mode 23 out
gpio -g write 23 1
gpio -g write 23 0

or

gpio mode 4 out
gpio write 4 1
gpio write 4 0

Enabling GPS

Enable the gpsd service:

sudo systemctl enable gpsd
sudo systemctl start gpsd

To verify that GPS daemon is running and producing output:

stty -F /dev/ttyXXX ispeed 4800 && cat </dev/ttyXXX

Where XXX is likely to be USB0 (check that the GPS device is listed with lsusb command).

Configuring Wifi interface

to bring wlan0 interface in monitor mode at startup, create file /etc/network/interfaces.d/wlan0 with the following content:

#/etc/network/interfaces.d/wlan0
auto wlan0
iface wlan0 inet manual
  wireless-mode monitor

To manually set the wlan0 interface to monitor mode, issue the following commands:

sudo ifconfig wlan0 down
sudo iwconfig wlan0 mode monitor
sudo ifconfig wlan0 up

Installing wscand as a service

To install wscand as a service:

sudo cp wscand /etc/init.d
sudo chmod 0755 /etc/init.d/wscand
sudo update-rc.d wscand defaults

Executing daemon

How to launch the Wifi Pi survey daemon on the Rapsberry Pi:

sudo ./wscand -i wlan0 -e -v 4 -p 100000 -o wscand.log

Installing and configuring kismet

Download kismet (kismet-2013-03-R1b.tar.gz)

sudo apt-get install libncurses \
    curses \
    libncurses5 \
    libncurses-dev \
    libpcap \
    libpcap-dev \
    libnl-dev
./configure
sudo make install
sudo vi /usr/local/etc/kismet.conf