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elkberry
Posts: 167
Joined: Wed Dec 28, 2016 9:21 pm

packet filter rule triggering user space app/Blinkt LED?

Tue Jul 04, 2017 8:05 pm

I have turned a Pi Zero W into a brouter that bridges certain traffic between wlan0 and eth0, while routing other traffic (well, it's even killing certain traffic by not routing on purpose). As I have a Blinkt! pHAT lying around with 8 RGB pixel LEDs, I would like to flash the LEDs for certain packet filter events.

Is there a means so that packet filter rules (nettables, ebtables) can send an event to user space? So I can pick up these events later in a Pyrhon program in order to flash the Blinkt! RGB LEDs?
From ZX81 to Raspberry Pi, but wait ... where's the 7805 gone?

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