492 lines
16 KiB
Nix
492 lines
16 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.networking.networkmanager;
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basePackages = with pkgs; [
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crda
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modemmanager
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networkmanager
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networkmanager-fortisslvpn
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networkmanager-iodine
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networkmanager-l2tp
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networkmanager-openconnect
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networkmanager-openvpn
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networkmanager-vpnc
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] ++ optional (!delegateWireless && !enableIwd) wpa_supplicant;
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delegateWireless = config.networking.wireless.enable == true && cfg.unmanaged != [];
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enableIwd = cfg.wifi.backend == "iwd";
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configFile = pkgs.writeText "NetworkManager.conf" ''
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[main]
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plugins=keyfile
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dhcp=${cfg.dhcp}
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dns=${cfg.dns}
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# If resolvconf is disabled that means that resolv.conf is managed by some other module.
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rc-manager=${if config.networking.resolvconf.enable then "resolvconf" else "unmanaged"}
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[keyfile]
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${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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audit=${lib.boolToString config.security.audit.enable}
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[connection]
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ipv6.ip6-privacy=2
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ethernet.cloned-mac-address=${cfg.ethernet.macAddress}
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wifi.cloned-mac-address=${cfg.wifi.macAddress}
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${optionalString (cfg.wifi.powersave != null)
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''wifi.powersave=${if cfg.wifi.powersave then "3" else "2"}''}
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[device]
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wifi.scan-rand-mac-address=${if cfg.wifi.scanRandMacAddress then "yes" else "no"}
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wifi.backend=${cfg.wifi.backend}
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${cfg.extraConfig}
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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: pkgs.writeText "nameservers" (
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concatStrings (map (s: "nameserver ${s}\n") xs)
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);
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overrideNameserversScript = pkgs.writeScript "02overridedns" ''
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#!/bin/sh
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PATH=${with pkgs; makeBinPath [ gnused gnugrep coreutils ]}
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tmp=$(mktemp)
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sed '/nameserver /d' /etc/resolv.conf > $tmp
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grep 'nameserver ' /etc/resolv.conf | \
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grep -vf ${ns (cfg.appendNameservers ++ cfg.insertNameservers)} > $tmp.ns
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cat $tmp ${ns cfg.insertNameservers} $tmp.ns ${ns cfg.appendNameservers} > /etc/resolv.conf
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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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Set the MAC address of the interface.
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<variablelist>
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<varlistentry>
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<term>"XX:XX:XX:XX:XX:XX"</term>
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<listitem><para>MAC address of the interface</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>"permanent"</literal></term>
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<listitem><para>Use the permanent MAC address of the device</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>"preserve"</literal></term>
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<listitem><para>Don’t change the MAC address of the device upon activation</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>"random"</literal></term>
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<listitem><para>Generate a randomized value upon each connect</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>"stable"</literal></term>
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<listitem><para>Generate a stable, hashed MAC address</para></listitem>
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</varlistentry>
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</variablelist>
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'';
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};
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in {
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meta = {
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maintainers = teams.freedesktop.members;
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};
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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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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Configuration appended to the generated NetworkManager.conf.
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Refer to
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<link xlink:href="https://developer.gnome.org/NetworkManager/stable/NetworkManager.conf.html">
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https://developer.gnome.org/NetworkManager/stable/NetworkManager.conf.html
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</link>
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or
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<citerefentry>
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<refentrytitle>NetworkManager.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</citerefentry>
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for more information.
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'';
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};
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unmanaged = mkOption {
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type = types.listOf types.str;
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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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refer to
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<link xlink:href="https://developer.gnome.org/NetworkManager/stable/NetworkManager.conf.html#device-spec">
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https://developer.gnome.org/NetworkManager/stable/NetworkManager.conf.html#device-spec
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</link>
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or the "Device List Format" Appendix of
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<citerefentry>
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<refentrytitle>NetworkManager.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</citerefentry>.
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'';
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};
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packages = mkOption {
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type = types.listOf types.package;
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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: 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 = "internal";
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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 = {
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macAddress = macAddressOpt;
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backend = mkOption {
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type = types.enum [ "wpa_supplicant" "iwd" ];
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default = "wpa_supplicant";
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description = ''
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Specify the Wi-Fi backend used for the device.
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Currently supported are <option>wpa_supplicant</option> or <option>iwd</option> (experimental).
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'';
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};
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powersave = mkOption {
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type = types.nullOr types.bool;
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default = null;
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description = ''
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Whether to enable Wi-Fi power saving.
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'';
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};
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scanRandMacAddress = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Whether to enable MAC address randomization of a Wi-Fi device
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during scanning.
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'';
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};
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};
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dns = mkOption {
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type = types.enum [ "default" "dnsmasq" "unbound" "systemd-resolved" "none" ];
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default = "default";
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description = ''
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Set the DNS (<literal>resolv.conf</literal>) processing mode.
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</para>
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<para>
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A description of these modes can be found in the main section of
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<link xlink:href="https://developer.gnome.org/NetworkManager/stable/NetworkManager.conf.html">
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https://developer.gnome.org/NetworkManager/stable/NetworkManager.conf.html
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</link>
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or in
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<citerefentry>
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<refentrytitle>NetworkManager.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</citerefentry>.
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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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Path to the hook 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. Look up the hooks described at
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<link xlink:href="https://developer.gnome.org/NetworkManager/stable/NetworkManager.html">https://developer.gnome.org/NetworkManager/stable/NetworkManager.html</link>
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and choose the type depending on the output folder.
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You should then filter the event type (e.g., "up"/"down") from within your script.
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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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example = literalExample ''
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[ {
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source = pkgs.writeText "upHook" '''
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if [ "$2" != "up" ]; then
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logger "exit: event $2 != up"
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exit
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fi
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# coreutils and iproute are in PATH too
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logger "Device $DEVICE_IFACE coming up"
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''';
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type = "basic";
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} ]'';
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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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enableStrongSwan = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enable the StrongSwan plugin.
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</para><para>
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If you enable this option the
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<literal>networkmanager_strongswan</literal> plugin will be added to
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the <option>networking.networkmanager.packages</option> option
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so you don't need to to that yourself.
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'';
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};
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};
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};
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imports = [
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(mkRenamedOptionModule [ "networking" "networkmanager" "useDnsmasq" ] [ "networking" "networkmanager" "dns" ])
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(mkRemovedOptionModule ["networking" "networkmanager" "dynamicHosts"] ''
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This option was removed because allowing (multiple) regular users to
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override host entries affecting the whole system opens up a huge attack
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vector. There seem to be very rare cases where this might be useful.
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Consider setting system-wide host entries using networking.hosts, provide
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them via the DNS server in your network, or use environment.etc
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to add a file into /etc/NetworkManager/dnsmasq.d reconfiguring hostsdir.
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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 == true -> cfg.unmanaged != [];
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message = ''
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You can not use networking.networkmanager with networking.wireless.
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Except if you mark some interfaces as <literal>unmanaged</literal> by NetworkManager.
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'';
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}
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];
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environment.etc = with pkgs; {
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"NetworkManager/NetworkManager.conf".source = configFile;
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"NetworkManager/VPN/nm-openvpn-service.name".source =
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"${networkmanager-openvpn}/lib/NetworkManager/VPN/nm-openvpn-service.name";
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"NetworkManager/VPN/nm-vpnc-service.name".source =
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"${networkmanager-vpnc}/lib/NetworkManager/VPN/nm-vpnc-service.name";
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"NetworkManager/VPN/nm-openconnect-service.name".source =
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"${networkmanager-openconnect}/lib/NetworkManager/VPN/nm-openconnect-service.name";
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"NetworkManager/VPN/nm-fortisslvpn-service.name".source =
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"${networkmanager-fortisslvpn}/lib/NetworkManager/VPN/nm-fortisslvpn-service.name";
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"NetworkManager/VPN/nm-l2tp-service.name".source =
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"${networkmanager-l2tp}/lib/NetworkManager/VPN/nm-l2tp-service.name";
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"NetworkManager/VPN/nm-iodine-service.name".source =
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"${networkmanager-iodine}/lib/NetworkManager/VPN/nm-iodine-service.name";
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}
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// optionalAttrs (cfg.appendNameservers != [] || cfg.insertNameservers != [])
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{
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"NetworkManager/dispatcher.d/02overridedns".source = overrideNameserversScript;
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}
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// optionalAttrs cfg.enableStrongSwan
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{
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"NetworkManager/VPN/nm-strongswan-service.name".source =
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"${pkgs.networkmanager_strongswan}/lib/NetworkManager/VPN/nm-strongswan-service.name";
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}
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// listToAttrs (lib.imap1 (i: s:
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{
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name = "NetworkManager/dispatcher.d/${dispatcherTypesSubdirMap.${s.type}}03userscript${lib.fixedWidthNumber 4 i}";
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value = { mode = "0544"; inherit (s) source; };
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}) cfg.dispatcherScripts);
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environment.systemPackages = cfg.packages;
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users.groups = {
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networkmanager.gid = config.ids.gids.networkmanager;
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nm-openvpn.gid = config.ids.gids.nm-openvpn;
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};
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users.users = {
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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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nm-iodine = {
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isSystemUser = true;
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group = "networkmanager";
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};
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};
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systemd.packages = cfg.packages;
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systemd.tmpfiles.rules = [
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"d /etc/NetworkManager/system-connections 0700 root root -"
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"d /etc/ipsec.d 0700 root root -"
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"d /var/lib/NetworkManager-fortisslvpn 0700 root root -"
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"d /var/lib/dhclient 0755 root root -"
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"d /var/lib/misc 0755 root root -" # for dnsmasq.leases
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];
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systemd.services.NetworkManager = {
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wantedBy = [ "network.target" ];
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restartTriggers = [ configFile ];
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aliases = [ "dbus-org.freedesktop.NetworkManager.service" ];
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serviceConfig = {
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StateDirectory = "NetworkManager";
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StateDirectoryMode = 755; # not sure if this really needs to be 755
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};
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};
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systemd.services.NetworkManager-wait-online = {
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wantedBy = [ "network-online.target" ];
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};
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systemd.services.ModemManager.aliases = [ "dbus-org.freedesktop.ModemManager1.service" ];
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# override unit as recommended by upstream - see https://github.com/NixOS/nixpkgs/issues/88089
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# TODO: keep an eye on modem-manager releases as this will eventually be added to the upstream unit
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systemd.services.ModemManager.serviceConfig.ExecStart = [
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""
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"${pkgs.modemmanager}/sbin/ModemManager --filter-policy=STRICT"
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];
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systemd.services.NetworkManager-dispatcher = {
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wantedBy = [ "network.target" ];
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restartTriggers = [ configFile overrideNameserversScript ];
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# useful binaries for user-specified hooks
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path = [ pkgs.iproute pkgs.utillinux pkgs.coreutils ];
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aliases = [ "dbus-org.freedesktop.nm-dispatcher.service" ];
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};
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# Turn off NixOS' network management when networking is managed entirely by NetworkManager
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networking = mkMerge [
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(mkIf (!delegateWireless) {
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useDHCP = false;
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})
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(mkIf cfg.enableStrongSwan {
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networkmanager.packages = [ pkgs.networkmanager_strongswan ];
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})
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(mkIf enableIwd {
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wireless.iwd.enable = true;
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})
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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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++ optional cfg.enableStrongSwan pkgs.strongswanNM
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++ optional (cfg.dns == "dnsmasq") pkgs.dnsmasq;
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services.udev.packages = cfg.packages;
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};
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}
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