Pinning Maps, New CLI Utils, & IP Range Dropping #60
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This PR introduces the option to pin the firewall's main BPF maps (dynamic filters, block map, and IP range dropping) to the file system. With this change, I've created two utilities,
xdpfw-addandxdpfw-del. These utilities are used to add or delete dynamic filters, IP ranges from the drop list, and source IPs from the block list.Additionally, new functionality that allows you to drop IP ranges (CIDR-based) has been added, but disabled by default. I've also made each core feature (dynamic filters, IP range dropping, and source IP blocking) modular so a user can enable or disable them if needed for better performance.
Other than the above, I've had to rewrite a lot of code and also revamped the README in an effort to make it more organized (still a work-in-progress).