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{ config, lib, pkgs, ... }:
with pkgs;
with lib;
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
'';
/*
[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")
&& subject.active
&& (action.id.indexOf("org.freedesktop.NetworkManager.") == 0
|| action.id.indexOf("org.freedesktop.ModemManager") == 0
))
{ return polkit.Result.YES; }
});
'';
ipUpScript = writeScript "01nixos-ip-up" ''
#!/bin/sh
if test "$2" = "up"; then
${config.systemd.package}/bin/systemctl start ip-up.target
${config.systemd.package}/bin/systemctl start network-online.target
fi
'';
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
'';
# pre-up and pre-down hooks were added in NM 0.9.10, but we still use 0.9.0
dispatcherTypesSubdirMap = {
"basic" = "";
/*"pre-up" = "pre-up.d/";
"pre-down" = "pre-down.d/";*/
};
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.
'';
};
packages = mkOption {
type = types.listOf types.path;
default = [ ];
description = ''
Extra packages that provide NetworkManager plugins.
'';
apply = list: [ networkmanager modemmanager wpa_supplicant ] ++ list;
};
appendNameservers = mkOption {
type = types.listOf types.string;
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.string;
default = [];
description = ''
A list of name servers that should be inserted before
the ones configured in NetworkManager or received by DHCP.
'';
};
dispatcherScripts = mkOption {
type = types.listOf (types.submodule {
options = {
source = mkOption {
type = types.str;
description = ''
A script source.
'';
};
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 services.networking.wireless";
}];
boot.kernelModules = [ "ppp_mppe" ]; # Needed for most (all?) PPTP VPN connections.
environment.etc = [
{ source = ipUpScript;
target = "NetworkManager/dispatcher.d/01nixos-ip-up";
}
{ 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";
}
] ++ optional (cfg.appendNameservers == [] || cfg.insertNameservers == [])
{ source = overrideNameserversScript;
target = "NetworkManager/dispatcher.d/02overridedns";
}
++ lib.imap (i: s: {
text = s.source;
target = "NetworkManager/dispatcher.d/${dispatcherTypesSubdirMap.${s.type}}03userscript${lib.fixedWidthNumber 4 i}";
}) cfg.dispatcherScripts;
environment.systemPackages = cfg.packages ++ [
networkmanager_openvpn
networkmanager_vpnc
networkmanager_openconnect
networkmanager_pptp
networkmanager_l2tp
modemmanager
];
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" ];
wants = [ "network-manager.service" ];
before = [ "network-manager.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;
};
powerManagement.resumeCommands = ''
${config.systemd.package}/bin/systemctl restart network-manager
'';
security.polkit.extraConfig = polkitConf;
# openvpn plugin has only dbus interface
services.dbus.packages = cfg.packages ++ [
networkmanager_openvpn
networkmanager_vpnc
networkmanager_openconnect
networkmanager_pptp
networkmanager_l2tp
modemmanager
];
services.udev.packages = cfg.packages;
};
}
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