nixpkgs/modules/services/networking/networkmanager.nix

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{ config, pkgs, ... }:
with pkgs.lib;
with pkgs;
let
cfg = config.networking.networkmanager;
stateDirs = "/var/lib/NetworkManager /var/lib/dhclient";
configFile = writeText "NetworkManager.conf" ''
[main]
plugins=keyfile
[keyfile]
${optionalString (config.networking.hostName != "") ''
hostname=${config.networking.hostName}
''}
[logging]
level=WARN
'';
polkitConf = ''
[network-manager]
Identity=unix-group:networkmanager
Action=org.freedesktop.NetworkManager.*
ResultAny=yes
ResultInactive=no
ResultActive=yes
[modem-manager]
Identity=unix-group:networkmanager
Action=org.freedesktop.ModemManager.*
ResultAny=yes
ResultInactive=no
ResultActive=yes
'';
ipUpScript = writeScript "01nixos-ip-up" ''
#!/bin/sh
if test "$2" = "up"; then
${config.systemd.package}/bin/systemctl start ip-up.target
fi
'';
in {
###### interface
options = {
networking.networkmanager.enable = mkOption {
default = false;
merge = mergeEnableOption;
description = ''
Whether to use NetworkManager to obtain an IP adress and other
configuration for all network interfaces that are not manually
configured. If enabled, a group <literal>networkmanager</literal>
will be created. Add all users that should have permission
to change network settings to this group.
'';
};
networking.networkmanager.packages = mkOption {
default = [ ];
description = ''
Extra packages that provide NetworkManager plugins.
'';
merge = mergeListOption;
apply = list: [ networkmanager modemmanager wpa_supplicant ] ++ list;
};
};
###### implementation
config = mkIf cfg.enable {
environment.etc = [
{ source = ipUpScript;
target = "NetworkManager/dispatcher.d/01nixos-ip-up";
}
{ source = configFile;
target = "NetworkManager/NetworkManager.conf";
}
];
environment.systemPackages = cfg.packages;
users.extraGroups = singleton {
name = "networkmanager";
gid = config.ids.gids.networkmanager;
};
systemd.packages = cfg.packages;
# Create an initialisation service that both starts
# NetworkManager when network.target is reached,
# and sets up necessary directories for NM.
systemd.services."NetworkManager-init" = {
description = "NetworkManager initialisation";
wantedBy = [ "network.target" ];
partOf = [ "NetworkManager.service" ];
wants = [ "NetworkManager.service" ];
before = [ "NetworkManager.service" ];
script = ''
mkdir -m 700 -p /etc/NetworkManager/system-connections
mkdir -m 755 -p ${stateDirs}
'';
serviceConfig = {
Type = "oneshot";
};
};
# Turn off NixOS' network management
networking = {
useDHCP = false;
wireless.enable = false;
};
security.polkit.permissions = polkitConf;
services.dbus.packages = cfg.packages;
services.udev.packages = cfg.packages;
};
}