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A simple firewall service utilizing netfilter hooks and proc pseudo files in kernel space to block/log network traffic

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Name		Name	Last commit message	Last commit date
Latest commit History 9 Commits
cli		cli
deamon		deamon
kernel		kernel
376097699-c16fdda7-16b7-4abd-9528-7ba243354fcf.drawio (1).jpg		376097699-c16fdda7-16b7-4abd-9528-7ba243354fcf.drawio (1).jpg
README.md		README.md

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Firewall

In this repository I share the source files of a project I was planning to start in the summer when I was reading the Kernel Programming Book by Kaiwan N Billimoria which at the end I didn't work on because of vacation and later in september because of workload.
Plans to continue working on it.

Initial system design

Resources

Kernel Programming Book by Kaiwan N Billimoria
Registering procfs entries: https://www.cs.cmu.edu/afs/grand.central.org/archive/twiki/pub/Main/SumitKumar/procfs-guide.pdf
NetFilterExample: https://infosecwriteups.com/linux-kernel-communication-part-1-netfilter-hooks-15c07a5a5c4e
Netfilter walkthrough: https://people.computing.clemson.edu/~westall/853/notes/netfilter.pdf
Deep dive in netfilter API applications : https://phrack.org/issues/61/13.html
Netlink examples: https://github.com/mwarning/netlink-examples

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A simple firewall service utilizing netfilter hooks and proc pseudo files in kernel space to block/log network traffic

linux networking kernel-module firewall thread linux-kernel operating-systems netfilter lkm systems-programming netfilter-hook

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