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61 lines
2.4 KiB
Nix
61 lines
2.4 KiB
Nix
{ config, pkgs, ... }:
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{
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# Unlock encrypted root partition remotely with SSH.
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# TODO: Some manual steps are required, see https://nixos.wiki/wiki/Remote_LUKS_Unlocking#Prepare_SSH_host_keys
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# -> ssh-keygen -t ed25519 -N "" -f /etc/secrets/initrd/ssh_host_ed25519_key
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#
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# Additional references:
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# https://wiki.archlinux.org/title/Dm-crypt/Specialties#Remote_unlocking_of_root_(or_other)_partition
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# SSH in initrd
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boot.initrd.network.enable = true;
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boot.initrd.network.ssh = {
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enable = true;
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port = (
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if (config.networking.hostName == "yodaTux") || (config.networking.hostName == "yodaTab") || (config.networking.hostName == "yodaGaming")
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then 22
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else if (config.networking.hostName == "yodaYoga")
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then 2225
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else if (config.networking.hostName == "yodaNas")
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then 2223
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else if (config.networking.hostName == "yodaHedgehog")
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then 2227
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else throw "Please add initrd ssh port here"
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);
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shell = "/bin/cryptsetup-askpass";
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authorizedKeys = [
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(builtins.readFile ../assets/ssh/nitrokey.pub)
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];
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hostKeys = [ "/etc/secrets/initrd/ssh_host_ed25519_key" ];
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};
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# Network in initrd
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#
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# Find out which module is used for network card:
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# lspci -v | grep -iA8 'network\|ethernet'
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# Or check the "Network" part of:
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# inxi -F
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#
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boot.initrd.availableKernelModules = (
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if (config.networking.hostName == "yodaTux") || (config.networking.hostName == "yodaHedgehog")
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then [ "r8169" ]
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else if (config.networking.hostName == "yodaYoga") || (config.networking.hostName == "yodaNas")
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then [ "e1000e" ]
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else if (config.networking.hostName == "yodaGaming")
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then [ "tg3" ]
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else throw "Please add kernel module of networ card here"
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);
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#
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# dmesg -> enp0s20f0u1u2: renamed from eth0 (yodaTux)
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# dmesg -> enp0s31f6: renamed from eth0 (yodaYoga)
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#boot.kernelParams = [ "ip=:::::eth0:dhcp" ];
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boot.kernelParams = [ "ip=dhcp" ];
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# Clear the configuration of the interfaces that were set up in the initrd right before stage 2 takes over.
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# Stage 2 will do the regular network configuration based on the NixOS networking options.
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# https://nixos.org/manual/nixos/stable/options#opt-boot.initrd.network.flushBeforeStage2
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#boot.initrd.network.flushBeforeStage2 = true;
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# TODO: Timeout if no Internet connection is available (to be able to enter password with a keyboard).
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}
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