netusage

This is a tool for monitoring the process-level network traffic usage. It listens to all the TCP packets and groups the usage by process. NetHogs is another tool which does the exact same task.

This was the first week's entry for the کدکچال# challenge founded by monjar.

Usage

You could easily run this tool by running the python script under root privileges.

And the only requirement is the psutil package which helps us with getting the information about processes and can be easily installed using pip.

You could use -i <interval> argument to specify the interval of results being printed in seconds. For example this command runs the tool every 5 seconds:

sudo python3 ./main.py -i 5

The result looks something like this:

Apparently, fcntl library makes the program work only on Linux. (Issue #1) Since Windows doesn't give access to Ethernet layer, this program will only run on Linux. I may find a way to make it work on Windows later on.

Stuff to do

Other that ones mentioned in the code itself, these are what I have in mind for improving this tool:

• Covering other network layer and transport layer protocols
• Making the code object oriented (Packet class, Process class, etc)
• Finding a better way of scheduling the print_result function which prints the result in each interval
• Adding more command line arguments
• Showing more information about the network and the packets

Contributions

Any form of feedback (issues, pull requests, ...) would be a huge help for me so thanks in advance! :)

References

All the main code about reading the packets are from this link. This link helped me a lot.

psutil package documentation