router7

The two advancements I'm following in the router field (which do not fit your requirements though) are 1) Router 7 [a router implementation fully written in Go] [1] 2) Turris MOX [a modular, extensible router] [2]. You could run Router 7 on PC Engines [3] who at least use Coreboot. [1] https://github.com/rtr7/router7 [2] https://www.turris.cz/en/overview/ [3] https://www.pcengines.ch/

Unfortunately there are no docs, as the Raspberry Pi is not an actively used platform for router7 (I switched to the apu2 after prototyping). That said, your guess is likely correct, this gokr-packer invocation should do the trick: gokr-packer \ -hostname=router7 \ -overwrite=/dev/sdb \ -gokrazy_pkgs=github.com/gokrazy/gokrazy/cmd/ntp \ github.com/rtr7/router7/cmd/... But note that you might need to rebuild https://github.com/gokrazy/kernel with some additional kernel options from https://github.com/rtr7/kernel, plus options for whichever USB ethernet adapter you’re going to use. Note that you won’t have automated recovery (rtr7-recover), as that uses PXE boot, which Raspberry Pi’s don’t do by default (and rtr7-recovery-init has some hard-coded values which won’t work on the Raspberry Pi, at least not when using an SD card for storage

nftables https://github.com/rtr7/router7/blob/master/cmd/netconfigd/n...

Have a look at router7’s dnsd, it’s not that complicated: https://github.com/rtr7/router7/blob/master/cmd/dnsd/dnsd.go You could easily fork it and extend it to implement your custom rules. I’ve done Go cross-compilation for running on Ubiquiti gear before, and it worked. So, if you’re willing to spend the effort, you could do it :).

https://godoc.org/github.com/rtr7/router7/cmd/dnsd already resolves computer names from DHCP leases. Is that what you mean? If no, can you elaborate on what the use-case is? Edit: forgot to mention, you can use static leases, too, permanently assigning an IP/hostname to a MAC address: just remove the expiration field in /perm/dhcp4d/leases.json :)