diff options
| -rw-r--r-- | lass/2configs/default.nix | 1 | ||||
| -rw-r--r-- | lass/2configs/wirelum.nix | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/lass/2configs/default.nix b/lass/2configs/default.nix index a43113177..dea32d4d4 100644 --- a/lass/2configs/default.nix +++ b/lass/2configs/default.nix @@ -10,6 +10,7 @@ with import <stockholm/lib>; ./zsh.nix ./htop.nix ./security-workarounds.nix + ./wirelum.nix { users.extraUsers = mapAttrs (_: h: { hashedPassword = h; }) diff --git a/lass/2configs/wirelum.nix b/lass/2configs/wirelum.nix new file mode 100644 index 000000000..cd8a20c6b --- /dev/null +++ b/lass/2configs/wirelum.nix @@ -0,0 +1,44 @@ +with import <stockholm/lib>; +{ config, pkgs, ... }: let + + self = config.krebs.build.host.nets.wirelum; + isRouter = !isNull self.via; + +in mkIf (hasAttr "wirelum" config.krebs.build.host.nets) { + #hack for modprobe inside containers + systemd.services."wireguard-wirelum".path = mkIf config.boot.isContainer (mkBefore [ + (pkgs.writeDashBin "modprobe" ":") + ]); + + boot.kernel.sysctl = mkIf isRouter { + "net.ipv6.conf.all.forwarding" = 1; + }; + krebs.iptables.tables.filter.INPUT.rules = [ + { predicate = "-p udp --dport ${toString self.wireguard.port}"; target = "ACCEPT"; } + ]; + krebs.iptables.tables.filter.FORWARD.rules = mkIf isRouter [ + { precedence = 1000; predicate = "-i wirelum -o wirelum"; target = "ACCEPT"; } + ]; + + networking.wireguard.interfaces.wirelum = { + ips = + (optional (!isNull self.ip4) self.ip4.addr) ++ + (optional (!isNull self.ip6) self.ip6.addr); + listenPort = 51820; + privateKeyFile = (toString <secrets>) + "/wirelum.key"; + allowedIPsAsRoutes = true; + peers = mapAttrsToList + (_: host: { + allowedIPs = if isRouter then + (optional (!isNull host.nets.wirelum.ip4) host.nets.wirelum.ip4.addr) ++ + (optional (!isNull host.nets.wirelum.ip6) host.nets.wirelum.ip6.addr) + else + host.nets.wirelum.wireguard.subnets + ; + endpoint = mkIf (!isNull host.nets.wirelum.via) (host.nets.wirelum.via.ip4.addr + ":${toString host.nets.wirelum.wireguard.port}"); + persistentKeepalive = mkIf (!isNull host.nets.wirelum.via) 61; + publicKey = host.nets.wirelum.wireguard.pubkey; + }) + (filterAttrs (_: h: hasAttr "wirelum" h.nets) config.krebs.hosts); + }; +} |