hosts/carotte/networking.nix

   1 { lib, hostName, ... }:
   2 let netIface = "end0"; in
   3 {
   4   imports = [
   5     #networking/wireguard/intranet.nix
   6   ];
   7   networking = {
   8     hostName = hostName;
   9     domain = "sp";
  10     #wireless.enable = true;
  11     useDHCP = false;
  12     #networkmanager.enable = true;
  13   };
  14   systemd.services.sshd.serviceConfig.LoadCredentialEncrypted = [
  15     "host.key:${ssh/host.key.cred}"
  16   ];
  17   services.openssh = {
  18     openFirewall = true;
  19     settings.X11Forwarding = true;
  20   };
  21
  22   #systemd.services.systemd-networkd.environment.SYSTEMD_LOG_LEVEL = "debug";
  23   systemd.network = {
  24     enable = true;
  25     wait-online = {
  26       enable = false;
  27     };
  28     networks = {
  29       "10-${netIface}" = {
  30         name = netIface;
  31         # Start a DHCP Client for IPv4 Addressing/Routing
  32         DHCP = "ipv4";
  33         networkConfig = {
  34           # Accept Router Advertisements for Stateless IPv6 Autoconfiguraton (SLAAC)
  35           IPv6AcceptRA = true;
  36           IPv6PrivacyExtensions = true;
  37           KeepConfiguration = "dhcp-on-stop";
  38         };
  39         linkConfig = {
  40           RequiredForOnline = "no";
  41         };
  42       };
  43     };
  44   };
  45   networking.nftables.ruleset = lib.mkAfter ''
  46     table inet filter {
  47       chain input {
  48         iifname ${netIface} goto input-net
  49       }
  50       chain output {
  51         ip daddr 10.0.0.0/8 counter goto output-lan
  52         ip daddr 172.16.0.0/12 counter goto output-lan
  53         ip daddr 192.168.0.0/16 counter goto output-lan
  54         ip daddr 224.0.0.0/3 counter goto output-lan
  55         oifname ${netIface} jump output-net
  56         oifname ${netIface} log level warn prefix "output-net: " counter drop
  57       }
  58       chain output-lan {
  59         meta l4proto { udp, tcp } th dport bootps counter accept comment "DHCP"
  60       }
  61     }
  62     table inet nat {
  63       chain postrouting {
  64         oifname ${netIface} masquerade
  65       }
  66     }
  67   '';
  68 }