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These are examples C codes of what you can achieve with libnftnl.
Basic functions are:
* fetch the ruleset from the kernel.
* update (add/delete) the ruleset.
* Set-up an event listener environment.
* Play with nftables sets infraestructure
To compile the examples, run:
$ gcc -lmnl -lnftnl nft-rule-add.c -o nft-rule-add
You will need the Linux kernel nf_tables.h header:
* linux/netfilter/nf_tables.h
Then you can run:
$ sudo ./nft-rule-add ip filter input
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