311 lines
9.7 KiB
Nix
311 lines
9.7 KiB
Nix
{ config, lib, pkgs, ... }:
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with pkgs;
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with lib;
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let
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cfg = config.networking.networkmanager;
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# /var/lib/misc is for dnsmasq.leases.
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stateDirs = "/var/lib/NetworkManager /var/lib/dhclient /var/lib/misc";
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dns =
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if cfg.useDnsmasq then "dnsmasq"
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else if config.services.resolved.enable then "systemd-resolved"
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else "default";
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configFile = writeText "NetworkManager.conf" ''
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[main]
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plugins=keyfile
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dhcp=${cfg.dhcp}
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dns=${dns}
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[keyfile]
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${optionalString (cfg.unmanaged != [])
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''unmanaged-devices=${lib.concatStringsSep ";" cfg.unmanaged}''}
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[logging]
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level=${cfg.logLevel}
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[connection]
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ipv6.ip6-privacy=2
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ethernet.cloned-mac-address=${cfg.ethernet.macAddress}
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wifi.cloned-mac-address=${cfg.wifi.macAddress}
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'';
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/*
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[network-manager]
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Identity=unix-group:networkmanager
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Action=org.freedesktop.NetworkManager.*
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ResultAny=yes
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ResultInactive=no
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ResultActive=yes
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[modem-manager]
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Identity=unix-group:networkmanager
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Action=org.freedesktop.ModemManager*
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ResultAny=yes
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ResultInactive=no
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ResultActive=yes
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*/
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polkitConf = ''
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polkit.addRule(function(action, subject) {
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if (
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subject.isInGroup("networkmanager")
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&& (action.id.indexOf("org.freedesktop.NetworkManager.") == 0
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|| action.id.indexOf("org.freedesktop.ModemManager") == 0
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))
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{ return polkit.Result.YES; }
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});
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'';
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ns = xs: writeText "nameservers" (
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concatStrings (map (s: "nameserver ${s}\n") xs)
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);
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overrideNameserversScript = writeScript "02overridedns" ''
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#!/bin/sh
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tmp=`${coreutils}/bin/mktemp`
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${gnused}/bin/sed '/nameserver /d' /etc/resolv.conf > $tmp
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${gnugrep}/bin/grep 'nameserver ' /etc/resolv.conf | \
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${gnugrep}/bin/grep -vf ${ns (cfg.appendNameservers ++ cfg.insertNameservers)} > $tmp.ns
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${optionalString (cfg.appendNameservers != []) "${coreutils}/bin/cat $tmp $tmp.ns ${ns cfg.appendNameservers} > /etc/resolv.conf"}
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${optionalString (cfg.insertNameservers != []) "${coreutils}/bin/cat $tmp ${ns cfg.insertNameservers} $tmp.ns > /etc/resolv.conf"}
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${coreutils}/bin/rm -f $tmp $tmp.ns
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'';
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dispatcherTypesSubdirMap = {
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"basic" = "";
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"pre-up" = "pre-up.d/";
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"pre-down" = "pre-down.d/";
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};
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macAddressOpt = mkOption {
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type = types.either types.str (types.enum ["permanent" "preserve" "random" "stable"]);
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default = "preserve";
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example = "00:11:22:33:44:55";
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description = ''
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"XX:XX:XX:XX:XX:XX": MAC address of the interface.
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<literal>permanent</literal>: use the permanent MAC address of the device.
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<literal>preserve</literal>: don’t change the MAC address of the device upon activation.
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<literal>random</literal>: generate a randomized value upon each connect.
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<literal>stable</literal>: generate a stable, hashed MAC address.
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'';
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};
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in {
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###### interface
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options = {
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networking.networkmanager = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to use NetworkManager to obtain an IP address and other
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configuration for all network interfaces that are not manually
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configured. If enabled, a group <literal>networkmanager</literal>
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will be created. Add all users that should have permission
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to change network settings to this group.
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'';
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};
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unmanaged = mkOption {
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type = types.listOf types.string;
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default = [];
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description = ''
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List of interfaces that will not be managed by NetworkManager.
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Interface name can be specified here, but if you need more fidelity
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see "Device List Format" in NetworkManager.conf man page.
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'';
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};
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# Ugly hack for using the correct gnome3 packageSet
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basePackages = mkOption {
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type = types.attrsOf types.package;
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default = { inherit networkmanager modemmanager wpa_supplicant
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networkmanager_openvpn networkmanager_vpnc
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networkmanager_openconnect networkmanager_fortisslvpn
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networkmanager_pptp networkmanager_l2tp; };
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internal = true;
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};
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packages = mkOption {
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type = types.listOf types.path;
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default = [ ];
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description = ''
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Extra packages that provide NetworkManager plugins.
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'';
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apply = list: (attrValues cfg.basePackages) ++ list;
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};
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dhcp = mkOption {
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type = types.enum [ "dhclient" "dhcpcd" "internal" ];
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default = "dhclient";
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description = ''
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Which program (or internal library) should be used for DHCP.
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'';
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};
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logLevel = mkOption {
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type = types.enum [ "OFF" "ERR" "WARN" "INFO" "DEBUG" "TRACE" ];
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default = "WARN";
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description = ''
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Set the default logging verbosity level.
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'';
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};
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appendNameservers = mkOption {
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type = types.listOf types.str;
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default = [];
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description = ''
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A list of name servers that should be appended
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to the ones configured in NetworkManager or received by DHCP.
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'';
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};
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insertNameservers = mkOption {
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type = types.listOf types.str;
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default = [];
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description = ''
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A list of name servers that should be inserted before
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the ones configured in NetworkManager or received by DHCP.
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'';
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};
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ethernet.macAddress = macAddressOpt;
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wifi.macAddress = macAddressOpt;
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useDnsmasq = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enable NetworkManager's dnsmasq integration. NetworkManager will run
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dnsmasq as a local caching nameserver, using a "split DNS"
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configuration if you are connected to a VPN, and then update
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resolv.conf to point to the local nameserver.
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'';
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};
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dispatcherScripts = mkOption {
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type = types.listOf (types.submodule {
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options = {
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source = mkOption {
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type = types.path;
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description = ''
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A script.
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'';
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};
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type = mkOption {
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type = types.enum (attrNames dispatcherTypesSubdirMap);
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default = "basic";
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description = ''
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Dispatcher hook type. Only basic hooks are currently available.
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'';
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};
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};
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});
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default = [];
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description = ''
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A list of scripts which will be executed in response to network events.
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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assertions = [{
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assertion = config.networking.wireless.enable == false;
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message = "You can not use networking.networkmanager with networking.wireless";
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}];
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boot.kernelModules = [ "ppp_mppe" ]; # Needed for most (all?) PPTP VPN connections.
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environment.etc = with cfg.basePackages; [
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{ source = configFile;
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target = "NetworkManager/NetworkManager.conf";
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}
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{ source = "${networkmanager_openvpn}/etc/NetworkManager/VPN/nm-openvpn-service.name";
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target = "NetworkManager/VPN/nm-openvpn-service.name";
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}
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{ source = "${networkmanager_vpnc}/etc/NetworkManager/VPN/nm-vpnc-service.name";
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target = "NetworkManager/VPN/nm-vpnc-service.name";
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}
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{ source = "${networkmanager_openconnect}/etc/NetworkManager/VPN/nm-openconnect-service.name";
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target = "NetworkManager/VPN/nm-openconnect-service.name";
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}
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{ source = "${networkmanager_fortisslvpn}/etc/NetworkManager/VPN/nm-fortisslvpn-service.name";
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target = "NetworkManager/VPN/nm-fortisslvpn-service.name";
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}
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{ source = "${networkmanager_pptp}/etc/NetworkManager/VPN/nm-pptp-service.name";
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target = "NetworkManager/VPN/nm-pptp-service.name";
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}
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{ source = "${networkmanager_l2tp}/etc/NetworkManager/VPN/nm-l2tp-service.name";
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target = "NetworkManager/VPN/nm-l2tp-service.name";
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}
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{ source = "${networkmanager_strongswan}/etc/NetworkManager/VPN/nm-strongswan-service.name";
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target = "NetworkManager/VPN/nm-strongswan-service.name";
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}
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] ++ optional (cfg.appendNameservers == [] || cfg.insertNameservers == [])
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{ source = overrideNameserversScript;
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target = "NetworkManager/dispatcher.d/02overridedns";
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}
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++ lib.imap1 (i: s: {
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inherit (s) source;
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target = "NetworkManager/dispatcher.d/${dispatcherTypesSubdirMap.${s.type}}03userscript${lib.fixedWidthNumber 4 i}";
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}) cfg.dispatcherScripts;
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environment.systemPackages = cfg.packages;
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users.extraGroups = [{
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name = "networkmanager";
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gid = config.ids.gids.networkmanager;
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}
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{
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name = "nm-openvpn";
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gid = config.ids.gids.nm-openvpn;
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}];
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users.extraUsers = [{
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name = "nm-openvpn";
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uid = config.ids.uids.nm-openvpn;
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extraGroups = [ "networkmanager" ];
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}];
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systemd.packages = cfg.packages;
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systemd.services."network-manager" = {
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wantedBy = [ "network.target" ];
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restartTriggers = [ configFile ];
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preStart = ''
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mkdir -m 700 -p /etc/NetworkManager/system-connections
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mkdir -m 755 -p ${stateDirs}
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'';
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};
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# Turn off NixOS' network management
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networking = {
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useDHCP = false;
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# use mkDefault to trigger the assertion about the conflict above
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wireless.enable = lib.mkDefault false;
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};
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powerManagement.resumeCommands = ''
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${config.systemd.package}/bin/systemctl restart network-manager
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'';
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security.polkit.extraConfig = polkitConf;
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services.dbus.packages = cfg.packages;
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services.udev.packages = cfg.packages;
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};
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}
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