[tych0]

> Note that seccomp has limited visibility into recvmsg / sendmsg args because bpf can't dereference syscall arg pointers.

I guess landlock can't help you here since it is still mostly about filesystem access right now, but maybe someday? It looks like "minimal network access control" is on the long term roadmap: https://landlock.io/

[l0kod]

There is an ongoing work to support network access-control: https://lore.kernel.org/all/20220621082313.3330667-1-konstan...