fw is a small project in which we want to implement a basic linux firewall

it will contain 2 main parts:

• the first one is the cli
• the second one is a kernel module

with the cli we will send the firewall rules to the kernel module

the kernel module will implement the hook function for netfilter

• implement basic getopt_long()
• implement a basic kernel module
• get started with netfilter hooks
• communicate between kernelspace and userspace with procfs