156 lines
4.0 KiB
Nix
156 lines
4.0 KiB
Nix
{ config, pkgs, ... }:
|
|
|
|
# TODO:
|
|
#
|
|
# asserts
|
|
# ensure that the nl80211 module is loaded/compiled in the kernel
|
|
# hwMode must be a/b/g
|
|
# channel must be between 1 and 13 (maybe)
|
|
# wpa_supplicant and hostapd on the same wireless interface doesn't make any sense
|
|
# perhaps an assertion that there is a dhcp server and a dns server on the IP address serviced by the hostapd?
|
|
|
|
with pkgs.lib;
|
|
|
|
let
|
|
|
|
cfg = config.services.hostapd;
|
|
|
|
configFile = pkgs.writeText "hostapd.conf"
|
|
''
|
|
interface=${cfg.interface}
|
|
driver=${cfg.driver}
|
|
ssid=${cfg.ssid}
|
|
hw_mode=${cfg.hwMode}
|
|
channel=${toString cfg.channel}
|
|
|
|
# logging (debug level)
|
|
logger_syslog=-1
|
|
logger_syslog_level=2
|
|
logger_stdout=-1
|
|
logger_stdout_level=2
|
|
|
|
ctrl_interface=/var/run/hostapd
|
|
ctrl_interface_group=${cfg.group}
|
|
|
|
${if cfg.wpa then ''
|
|
wpa=1
|
|
wpa_passphrase=${cfg.wpaPassphrase}
|
|
'' else ""}
|
|
|
|
${cfg.extraCfg}
|
|
'' ;
|
|
|
|
in
|
|
|
|
{
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
services.hostapd = {
|
|
|
|
enable = mkOption {
|
|
default = false;
|
|
description = ''
|
|
Enable putting a wireless interface into infrastructure mode,
|
|
allowing other wireless devices to associate with the wireless interface and do
|
|
wireless networking. A simple access point will enable hostapd.wpa, and
|
|
hostapd.wpa_passphrase, hostapd.ssid, dhcpd on the wireless interface to
|
|
provide IP addresses to the associated stations, and nat (from the wireless
|
|
interface to an upstream interface).
|
|
'';
|
|
};
|
|
|
|
interface = mkOption {
|
|
default = "";
|
|
example = "wlan0";
|
|
description = ''
|
|
The interfaces <command>hostapd</command> will use.
|
|
'';
|
|
};
|
|
|
|
driver = mkOption {
|
|
default = "nl80211";
|
|
example = "hostapd";
|
|
type = types.string;
|
|
description = "Which driver hostapd will use. Most things will probably use the default.";
|
|
};
|
|
|
|
ssid = mkOption {
|
|
default = "nixos";
|
|
example = "mySpecialSSID";
|
|
type = types.string;
|
|
description = "SSID to be used in IEEE 802.11 management frames.";
|
|
};
|
|
|
|
hwMode = mkOption {
|
|
default = "b";
|
|
example = "g";
|
|
type = types.string;
|
|
description = "Operation mode (a = IEEE 802.11a, b = IEEE 802.11b, g = IEEE 802.11g";
|
|
};
|
|
|
|
channel = mkOption {
|
|
default = 7;
|
|
example = 11;
|
|
type = types.int;
|
|
description =
|
|
''
|
|
Channel number (IEEE 802.11)
|
|
Please note that some drivers do not use this value from hostapd and the
|
|
channel will need to be configured separately with iwconfig.
|
|
'';
|
|
};
|
|
|
|
group = mkOption {
|
|
default = "wheel";
|
|
example = "network";
|
|
type = types.string;
|
|
description = "members of this group can control hostapd";
|
|
};
|
|
|
|
wpa = mkOption {
|
|
default = true;
|
|
description = "enable WPA (IEEE 802.11i/D3.0) to authenticate to the access point";
|
|
};
|
|
|
|
wpaPassphrase = mkOption {
|
|
default = "my_sekret";
|
|
example = "any_64_char_string";
|
|
type = types.string;
|
|
description =
|
|
''
|
|
WPA-PSK (pre-shared-key) passphrase. Clients will need this
|
|
passphrase to associate with this access point. Warning: This passphrase will
|
|
get put into a world-readable file in the nix store.
|
|
'';
|
|
};
|
|
|
|
extraCfg = mkOption {
|
|
default = "";
|
|
example = ''
|
|
auth_algo=0
|
|
ieee80211n=1
|
|
ht_capab=[HT40-][SHORT-GI-40][DSSS_CCK-40]
|
|
'';
|
|
type = types.string;
|
|
description = "Extra configuration options to put in the hostapd.conf";
|
|
};
|
|
};
|
|
};
|
|
|
|
|
|
###### implementation
|
|
|
|
config = mkIf cfg.enable {
|
|
|
|
environment.systemPackages = [ pkgs.hostapd ];
|
|
|
|
jobs.hostapd =
|
|
{ startOn = "started network-interfaces";
|
|
stopOn = "stopping network-interfaces";
|
|
exec = "${pkgs.hostapd}/bin/hostapd ${configFile}";
|
|
};
|
|
};
|
|
}
|