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pvv-nixos-config/hosts/grevling/services/openvpn/default.nix

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2023-11-04 21:28:09 +01:00
{ pkgs, lib, values, ... }:
{
services.openvpn.servers."ov-tunnel" = {
config = let
conf = {
# TODO: use aliases
local = "129.241.210.191";
port = 1194;
proto = "udp";
dev = "tap";
# TODO: set up
ca = "";
cert = "";
key = "";
dh = "";
# Maintain a record of client <-> virtual IP address
# associations in this file. If OpenVPN goes down or
# is restarted, reconnecting clients can be assigned
# the same virtual IP address from the pool that was
# previously assigned.
ifconfig-pool-persist = ./ipp.txt;
server-bridge = builtins.concatStringsSep " " [
"129.241.210.129"
"255.255.255.128"
"129.241.210.253"
"129.241.210.254"
];
keepalive = "10 120";
cipher = "none";
user = "nobody";
group = "nobody";
status = "/var/log/openvpn-status.log";
client-config-dir = pkgs.writeTextDir "tuba" ''
# Sett IP-adr. for tap0 til tubas PVV-adr.
ifconfig-push ${values.services.tuba-tap} 255.255.255.128
# Hvordan skal man faa dette til aa funke, tro?
#ifconfig-ipv6-push 2001:700:300:1900::xxx/64
# La tuba bruke std. PVV-gateway til all trafikk (unntatt
# VPN-tunnellen).
push "redirect-gateway"
'';
persist-key = true;
persist-tun = true;
verb = 5;
explicit-exit-notify = 1;
};
in lib.pipe conf [
(lib.filterAttrs (_: value: !(builtins.isNull value || value == false)))
(builtins.mapAttrs (_: value:
if builtins.isList value then builtins.concatStringsSep " " (map toString value)
else if value == true then value
else if builtins.any (f: f value) [
builtins.isString
builtins.isInt
builtins.isFloat
lib.isPath
lib.isDerivation
] then toString value
else throw "Unknown value in grevling openvpn config, deading now\n${value}"
))
(lib.mapAttrsToList (name: value: if value == true then name else "${name} ${value}"))
(builtins.concatStringsSep "\n")
(x: x + "\n\n")
];
};
}