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{ config, lib, pkgs, ... }:
with pkgs;
with lib;
let
cfg = config.networking.networkmanager;
# /var/lib/misc is for dnsmasq.leases.
stateDirs = "/var/lib/NetworkManager /var/lib/dhclient /var/lib/misc";
configFile = writeText "NetworkManager.conf" ''
[main]
plugins=keyfile
[keyfile]
${optionalString (config.networking.hostName != "")
''hostname=${config.networking.hostName}''}
${optionalString (cfg.unmanaged != [])
''unmanaged-devices=${lib.concatStringsSep ";" cfg.unmanaged}''}
[logging]
level=WARN
[connection]
ipv6.ip6-privacy=2
ethernet.cloned-mac-address=${cfg.ethernet.macAddress}
wifi.cloned-mac-address=${cfg.wifi.macAddress}
'';
/*
[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
*/
polkitConf = ''
polkit.addRule(function(action, subject) {
if (
subject.isInGroup("networkmanager")
&& (action.id.indexOf("org.freedesktop.NetworkManager.") == 0
|| action.id.indexOf("org.freedesktop.ModemManager") == 0
))
{ return polkit.Result.YES; }
});
'';
ns = xs: writeText "nameservers" (
concatStrings (map (s: "nameserver ${s}\n") xs)
);
overrideNameserversScript = writeScript "02overridedns" ''
#!/bin/sh
tmp=`${coreutils}/bin/mktemp`
${gnused}/bin/sed '/nameserver /d' /etc/resolv.conf > $tmp
${gnugrep}/bin/grep 'nameserver ' /etc/resolv.conf | \
${gnugrep}/bin/grep -vf ${ns (cfg.appendNameservers ++ cfg.insertNameservers)} > $tmp.ns
${optionalString (cfg.appendNameservers != []) "${coreutils}/bin/cat $tmp $tmp.ns ${ns cfg.appendNameservers} > /etc/resolv.conf"}
${optionalString (cfg.insertNameservers != []) "${coreutils}/bin/cat $tmp ${ns cfg.insertNameservers} $tmp.ns > /etc/resolv.conf"}
${coreutils}/bin/rm -f $tmp $tmp.ns
'';
dispatcherTypesSubdirMap = {
"basic" = "";
"pre-up" = "pre-up.d/";
"pre-down" = "pre-down.d/";
};
macAddressOpt = mkOption {
type = types.either types.str (types.enum ["permanent" "preserve" "random" "stable"]);
default = "preserve";
example = "00:11:22:33:44:55";
description = ''
"XX:XX:XX:XX:XX:XX": MAC address of the interface.
<literal>permanent</literal>: use the permanent MAC address of the device.
<literal>preserve</literal>: don’t change the MAC address of the device upon activation.
<literal>random</literal>: generate a randomized value upon each connect.
<literal>stable</literal>: generate a stable, hashed MAC address.
'';
};
in {
###### interface
options = {
networking.networkmanager = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to use NetworkManager to obtain an IP address 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.
'';
};
unmanaged = mkOption {
type = types.listOf types.string;
default = [];
description = ''
List of interfaces that will not be managed by NetworkManager.
Interface name can be specified here, but if you need more fidelity
see "Device List Format" in NetworkManager.conf man page.
'';
};
# Ugly hack for using the correct gnome3 packageSet
basePackages = mkOption {
type = types.attrsOf types.package;
default = { inherit networkmanager modemmanager wpa_supplicant
networkmanager_openvpn networkmanager_vpnc
networkmanager_openconnect
networkmanager_pptp networkmanager_l2tp; };
internal = true;
};
packages = mkOption {
type = types.listOf types.path;
default = [ ];
description = ''
Extra packages that provide NetworkManager plugins.
'';
apply = list: (attrValues cfg.basePackages) ++ list;
};
appendNameservers = mkOption {
type = types.listOf types.str;
default = [];
description = ''
A list of name servers that should be appended
to the ones configured in NetworkManager or received by DHCP.
'';
};
insertNameservers = mkOption {
type = types.listOf types.str;
default = [];
description = ''
A list of name servers that should be inserted before
the ones configured in NetworkManager or received by DHCP.
'';
};
ethernet.macAddress = macAddressOpt;
wifi.macAddress = macAddressOpt;
dispatcherScripts = mkOption {
type = types.listOf (types.submodule {
options = {
source = mkOption {
type = types.path;
description = ''
A script.
'';
};
type = mkOption {
type = types.enum (attrNames dispatcherTypesSubdirMap);
default = "basic";
description = ''
Dispatcher hook type. Only basic hooks are currently available.
'';
};
};
});
default = [];
description = ''
A list of scripts which will be executed in response to network events.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
assertions = [{
assertion = config.networking.wireless.enable == false;
message = "You can not use networking.networkmanager with networking.wireless";
}];
boot.kernelModules = [ "ppp_mppe" ]; # Needed for most (all?) PPTP VPN connections.
environment.etc = with cfg.basePackages; [
{ source = configFile;
target = "NetworkManager/NetworkManager.conf";
}
{ source = "${networkmanager_openvpn}/etc/NetworkManager/VPN/nm-openvpn-service.name";
target = "NetworkManager/VPN/nm-openvpn-service.name";
}
{ source = "${networkmanager_vpnc}/etc/NetworkManager/VPN/nm-vpnc-service.name";
target = "NetworkManager/VPN/nm-vpnc-service.name";
}
{ source = "${networkmanager_openconnect}/etc/NetworkManager/VPN/nm-openconnect-service.name";
target = "NetworkManager/VPN/nm-openconnect-service.name";
}
{ source = "${networkmanager_pptp}/etc/NetworkManager/VPN/nm-pptp-service.name";
target = "NetworkManager/VPN/nm-pptp-service.name";
}
{ source = "${networkmanager_l2tp}/etc/NetworkManager/VPN/nm-l2tp-service.name";
target = "NetworkManager/VPN/nm-l2tp-service.name";
}
{ source = "${networkmanager_strongswan}/etc/NetworkManager/VPN/nm-strongswan-service.name";
target = "NetworkManager/VPN/nm-strongswan-service.name";
}
] ++ optional (cfg.appendNameservers == [] || cfg.insertNameservers == [])
{ source = overrideNameserversScript;
target = "NetworkManager/dispatcher.d/02overridedns";
}
++ lib.imap (i: s: {
inherit (s) source;
target = "NetworkManager/dispatcher.d/${dispatcherTypesSubdirMap.${s.type}}03userscript${lib.fixedWidthNumber 4 i}";
}) cfg.dispatcherScripts;
environment.systemPackages = cfg.packages;
users.extraGroups = [{
name = "networkmanager";
gid = config.ids.gids.networkmanager;
}
{
name = "nm-openvpn";
gid = config.ids.gids.nm-openvpn;
}];
users.extraUsers = [{
name = "nm-openvpn";
uid = config.ids.uids.nm-openvpn;
}];
systemd.packages = cfg.packages;
systemd.services."network-manager" = {
wantedBy = [ "network.target" ];
restartTriggers = [ configFile ];
preStart = ''
mkdir -m 700 -p /etc/NetworkManager/system-connections
mkdir -m 755 -p ${stateDirs}
'';
};
# Turn off NixOS' network management
networking = {
useDHCP = false;
# use mkDefault to trigger the assertion about the conflict above
wireless.enable = lib.mkDefault false;
};
powerManagement.resumeCommands = ''
${config.systemd.package}/bin/systemctl restart network-manager
'';
security.polkit.extraConfig = polkitConf;
services.dbus.packages = cfg.packages;
services.udev.packages = cfg.packages;
};
}
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