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|
{ config, pkgs, lib, ... }:
# WARN(DEPRECATED): This module is deprecated and is superseded by tailscale.
let
cfg = config.networking.networkmanager.nm-mullvad;
template = { id, uuid, pubKey, endpoint }:
''
[connection]
id=${id}
uuid=${uuid}
type=wireguard
${lib.optionalString (!cfg.autoConnect.enable || cfg.autoConnect.profile != id) "autoconnect=false"}
interface-name=${id}
[wireguard]
${lib.optionalString (cfg.listenPort != null) "listen-port=${toString cfg.listenPort}"}
private-key=${if cfg.privateKey != null then cfg.privateKey else "@PRIVKEY@"}
[wireguard-peer.${pubKey}]
endpoint=${endpoint}:51820
allowed-ips=0.0.0.0/0;::/0;
[ipv4]
address1=${if cfg.ipv4Address != null then cfg.ipv4Address else "@IPV4ADDRESS@"}
dns=10.64.0.1
dns-search=~;
method=manual
[ipv6]
addr-gen-mode=default
address1=${if cfg.ipv6Address != null then cfg.ipv6Address else "@IPV6ADDRESS@"}
method=manual
[proxy]
'';
serversList = import ./mullvad-servers-list.nix;
allServerIds = builtins.map (x: x.id) serversList;
availableServersList = builtins.filter (x: lib.elem x.id cfg.availableServers) serversList;
serverEntryToConnFilename = serverEntry:
"NetworkManager/system-connections/${serverEntry.id}.nmconnection";
serverEntryToConnFile = serverEntry:
{
"${serverEntryToConnFilename serverEntry}" = {
text = template
{
inherit (serverEntry) id uuid pubKey endpoint;
};
mode = "0600";
};
};
connFiles = lib.fold (x: acc: lib.recursiveUpdate (serverEntryToConnFile x) acc) { } availableServersList;
in
{
options.networking.networkmanager.nm-mullvad = {
enable = lib.mkEnableOption "Mullvad VPN profile for NetworkManager";
listenPort = lib.mkOption {
type = lib.types.nullOr lib.types.number;
default = null;
description = ''
Set the port to listen on. Useful if you have a firewall active.
'';
};
openFirewall = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Whether to open firewall for given `listenPort`.
'';
};
autoConnect = {
enable = lib.mkEnableOption "autoconnect for `autoConnect.profile`";
profile = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
ID of the profile to autoconnect to.
'';
};
};
privateKey = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
WireGuard private key to use for authenticating with Mullvad.
'';
};
privateKeyPath = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
Path for the file containing WireGuard private key to use for
authenticating with Mullvad.
'';
};
ipv4Address = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
IPv4 address to assign to the WireGuard interface.
This should include the CIDR notation, e.g.) `10.64.0.1/32`
'';
};
ipv4AddressPath = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
Path for the file containing the IPv4 address to assign to the
WireGuard interface.
This should include the CIDR notation, e.g.) `10.64.0.1/32`
'';
};
ipv6Address = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
IPv6 address to assign to the wireguard interface.
This should include the CIDR notation, e.g.) `fc00:bbbb:bbbb:bb01::1/128`
'';
};
ipv6AddressPath = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
Path for the file containing the IPv6 address to assign to the
WireGuard interface.
This should include the CIDR notation, e.g.) `fc00:bbbb:bbbb:bb01::1/128`
'';
};
availableServers = lib.mkOption
{
type = lib.types.listOf lib.types.str;
default = allServerIds;
description = ''
List of servers that will be made available.
Defaults to all servers, which might introduce clutter.
'';
};
};
config = lib.mkIf cfg.enable {
assertions = [
{
assertion = cfg.openFirewall == true -> cfg.listenPort != null;
message = ''
A custom `listenPort` must be given when `openFirewall` is set.
'';
}
{
assertion = cfg.autoConnect.enable == true -> cfg.autoConnect.profile != null;
message = ''
Profile to use for autoconnect must be set when enabling autoconnect.
'';
}
{
assertion = cfg.privateKey != null || cfg.privateKeyPath != null;
message = ''
Either `privateKey` or `privateKeyPath` must be set.
'';
}
{
assertion = cfg.ipv4Address != null || cfg.ipv4AddressPath != null;
message = ''
Either `ipv4Address` or `ipv4AddressPath` must be set.
'';
}
{
assertion = cfg.ipv6Address != null || cfg.ipv6AddressPath != null;
message = ''
Either `ipv6Address` or `ipv6AddressPath` must be set.
'';
}
];
environment.etc = connFiles;
system.activationScripts.nm-mullvad-substitutePrivateKey = lib.mkIf (cfg.privateKeyPath != null) (lib.stringAfter [ "etc" "specialfs" "var" ]
''
if [ -f "${cfg.privateKeyPath}" ]; then
${pkgs.systemd}/bin/systemd-cat -t nixos echo "<6>loading networking.networkmanager.nm-mullvad.privateKeyPath from ${cfg.privateKeyPath}"
${lib.concatMapStringsSep "\n"
(f: "${pkgs.gnused}/bin/sed -ie \"s_@PRIVKEY@_$(< ${cfg.privateKeyPath})_\" ${f}")
(builtins.map (s: "/etc/${serverEntryToConnFilename s}") availableServersList)}
else
warning_msg="WARNING: networking.networkmanager.nm-mullvad.privateKeyPath (${cfg.privateKeyPath}) does not exist."
echo "$warning_msg"
${pkgs.systemd}/bin/systemd-cat -t nixos echo "<4>$warning_msg"
fi
'');
system.activationScripts.nm-mullvad-substituteIpv4Address = lib.mkIf (cfg.ipv4AddressPath != null) (lib.stringAfter [ "etc" "specialfs" "var" ]
''
if [ -f "${cfg.ipv4AddressPath}" ]; then
${pkgs.systemd}/bin/systemd-cat -t nixos echo "<6>loading networking.networkmanager.nm-mullvad.ipv4AddressPath from ${cfg.ipv4AddressPath}"
${lib.concatMapStringsSep "\n"
(f: "${pkgs.gnused}/bin/sed -ie \"s!@IPV4ADDRESS@!$(< ${cfg.ipv4AddressPath})!\" ${f}")
(builtins.map (s: "/etc/${serverEntryToConnFilename s}") availableServersList)}
else
warning_msg="WARNING: networking.networkmanager.nm-mullvad.ipv4AddressPath (${cfg.ipv4AddressPath}) does not exist."
echo "$warning_msg"
${pkgs.systemd}/bin/systemd-cat -t nixos echo "<4>$warning_msg"
fi
'');
system.activationScripts.nm-mullvad-substituteIpv6Address = lib.mkIf (cfg.ipv6AddressPath != null) (lib.stringAfter [ "etc" "specialfs" "var" ]
''
if [ -f "${cfg.ipv6AddressPath}" ]; then
${pkgs.systemd}/bin/systemd-cat -t nixos echo "<6>loading networking.networkmanager.nm-mullvad.ipv6AddressPath from ${cfg.ipv6AddressPath}"
${lib.concatMapStringsSep "\n"
(f: "${pkgs.gnused}/bin/sed -ie \"s!@IPV6ADDRESS@!$(< ${cfg.ipv6AddressPath})!\" ${f}")
(builtins.map (s: "/etc/${serverEntryToConnFilename s}") availableServersList)}
else
warning_msg="WARNING: networking.networkmanager.nm-mullvad.ipv6AddressPath (${cfg.ipv6AddressPath}) does not exist."
echo "$warning_msg"
${pkgs.systemd}/bin/systemd-cat -t nixos echo "<4>$warning_msg"
fi
'');
networking.firewall.allowedUDPPorts = lib.mkIf cfg.openFirewall [ cfg.listenPort ];
networking.firewall.logReversePathDrops = lib.mkIf cfg.openFirewall true;
networking.firewall.extraCommands = lib.mkIf cfg.openFirewall ''
ip46tables -t mangle -I nixos-fw-rpfilter -p udp -m udp --sport ${toString cfg.listenPort} -j RETURN
ip46tables -t mangle -I nixos-fw-rpfilter -p udp -m udp --dport ${toString cfg.listenPort} -j RETURN
'';
networking.firewall.extraStopCommands = lib.mkIf cfg.openFirewall ''
ip46tables -t mangle -D nixos-fw-rpfilter -p udp -m udp --sport ${toString cfg.listenPort} -j RETURN || true
ip46tables -t mangle -D nixos-fw-rpfilter -p udp -m udp --dport ${toString cfg.listenPort} -j RETURN || true
'';
};
}
|
