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Doesn't the network stack end with sending everything to userspace (user applications) in the end anyway? As long as it doesn't take multiple round trips...
by kalleboo 7y ago
Doesn't the network stack end with sending everything to userspace (user applications) in the end anyway? As long as it doesn't take multiple round trips...
- chupasaurus 7y agoFirewall is also a part of kernel (dunno about macOS though) so the traffic might not come out.
- wmf 7y agoMultiple round trips is exactly what I'm concerned about. Imagine a connection going from, say, Safari to the kernel to Little Snitch to the kernel to the NIC. It may not work this way though. Anything tun-based tends to have the same problem.