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|
{
config,
lib,
pkgs,
...
}:
let
inherit (lib)
mkEnableOption
mkIf
mkOption
types
recursiveUpdate
literalExpression
optionalAttrs
;
inherit (pkgs)
concatTextFile
writeText
;
inherit (lib.strings)
concatStringsSep
;
inherit (lib.attrsets)
mapAttrs'
;
cfg = config.networking.wireless.iwd-ext;
ini = pkgs.formats.ini {
listToValue = l: concatStringsSep "," (map toString l);
};
defaults =
with config.networking.networkmanager;
optionalAttrs (enable && (wifi.backend == "iwd")) {
# without DefaultInterface, sometimes wlan0 simply goes AWOL with NetworkManager
# https://iwd.wiki.kernel.org/interface_lifecycle#interface_management_in_iwd
DriverQuirks.DefaultInterface = "?*";
};
configFile = ini.generate "main.conf" (recursiveUpdate defaults cfg.settings);
networkTemplates = mapAttrs' (
k: v:
let
name = "${k}.${v.networkType}";
generatedConfig = ini.generate "${name}" v.config;
extraLinesFile = writeText "${name}-extra-lines" v.extraConfigLines;
in
{
inherit name;
value = concatTextFile {
name = "${k}-network";
files = [
generatedConfig
extraLinesFile
];
destination = "/var/lib/iwd/${name}";
};
}
) cfg.networks;
networkTemplateDir = pkgs.symlinkJoin {
name = "iwd-network-templates";
paths = builtins.attrValues networkTemplates;
};
networkSubmodule = types.submodule {
options = {
networkType = mkOption {
type = types.enum [
"open"
"psk"
"8021x"
];
default = "psk";
defaultText = literalExpression "psk";
description = ''
Network type according to security method. See iwd.network (5)
'';
};
config = mkOption { type = ini.type; };
extraConfigLines = mkOption {
type = types.lines;
default = "";
description = "Extra lines to append to the network config verbatim.";
};
};
};
in
{
options.networking.wireless.iwd-ext = {
enable = mkEnableOption (lib.mdDoc "iwd");
package = mkOption {
type = types.package;
default = pkgs.iwd;
defaultText = lib.literalExpression "pkgs.iwd";
description = lib.mdDoc ''
The iwd package to use
'';
};
settings = mkOption {
type = ini.type;
default = { };
example = {
Settings.AutoConnect = true;
Network = {
EnableIPv6 = true;
RoutePriorityOffset = 300;
};
};
description = lib.mdDoc ''
Options passed to iwd.
See [here](https://iwd.wiki.kernel.org/networkconfigurationsettings) for
supported options.
'';
};
networks = mkOption {
type = types.attrsOf networkSubmodule;
example = {
HomeNetwork = {
networkType = "psk";
config.Security.Passphrase = "totallysecurepsk";
};
SomeOtherNetworkSSID = {
networkType = "psk";
config.Security.Passphrase = "@NETWORK_2_PSK@";
};
};
description = lib.mdDoc ''
AttrSet of type SSID - iwd network INI config.
See [here](https://iwd.wiki.kernel.org/networkconfigurationsettings) for
supported options.
'';
};
secretsEnvFile = mkOption {
type = types.path;
example = "/run/secrets/network-secrets.env";
description = lib.mdDoc ''
dotenv-formatted file containing secrets that get injected into
cfg.networks settings.
'';
};
}; # end of options.networking.wireless.iwd-ext
config = mkIf cfg.enable {
assertions = [
{
assertion = !config.networking.wireless.enable;
message = ''
Only one wireless daemon is allowed at the time:
networking.wireless.enable and networking.wireless.iwd-ext.enable are
mutually exclusive.
'';
}
{
assertion = !config.networking.wireless.iwd.enable;
message = ''
Only one wireless daemon is allowed at the time:
networking.wireless.iwd.enable and networking.wireless.iwd-ext.enable are
mutually exclusive.
'';
}
];
environment.etc."iwd/${configFile.name}".source = configFile;
environment.systemPackages = [ cfg.package ]; # for iwctl
services.dbus.packages = [ cfg.package ];
systemd.packages = [ cfg.package ];
systemd.network.links."80-iwd" = {
matchConfig.Type = "wlan";
linkConfig.NamePolicy = "keep kernel";
};
systemd.services.iwd = {
path = [ config.networking.resolvconf.package ];
wantedBy = [ "multi-user.target" ];
restartTriggers = [ configFile ];
serviceConfig.ReadWritePaths = "-/etc/resolv.conf";
};
systemd.services."prepopulate-iwd-netowks" = {
enable = true;
enableStrictShellChecks = true;
description = "Pre-populates network configs for iwd";
before = [ "iwd.service" ];
wantedBy = [ "iwd.service" ];
after = [ "sops-install-secrets.service" ];
serviceConfig = {
EnvironmentFile = "${cfg.secretsEnvFile}";
StateDirectory = "iwd";
StateDirectoryMode = 0700;
Umask = 077;
};
path = [ pkgs.envsubst ];
script = ''
set -xeu
rm -f "$STATE_DIRECTORY/*.{open,psk,8021x}"
for f in ${networkTemplateDir}/var/lib/iwd/*; do
NETWORK_PATH="$STATE_DIRECTORY/$(basename "$f")"
cat "$f" |
sed -E 's/@@/\x00/g; s/@([A-Za-z_][A-Za-z0-9_]*)@/$\{\1}/g; s/\x00/@/g' |
envsubst > "$NETWORK_PATH"
chmod go-rwx "$NETWORK_PATH"
done
'';
};
};
}
|
