- add a hostapd module
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@ -129,6 +129,7 @@
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./services/networking/gnunet.nix
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./services/networking/gnunet.nix
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./services/networking/gogoclient.nix
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./services/networking/gogoclient.nix
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./services/networking/gvpe.nix
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./services/networking/gvpe.nix
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./services/networking/hostapd.nix
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./services/networking/ifplugd.nix
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./services/networking/ifplugd.nix
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./services/networking/ircd-hybrid/default.nix
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./services/networking/ircd-hybrid/default.nix
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./services/networking/nat.nix
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./services/networking/nat.nix
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154
modules/services/networking/hostapd.nix
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154
modules/services/networking/hostapd.nix
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{ config, pkgs, ... }:
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# TODO:
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#
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# asserts
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# ensure that the nl80211 module is loaded/compiled in the kernel
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# hwMode must be a/b/g
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# channel must be between 1 and 13 (maybe)
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# wpa_supplicant and hostapd on the same wireless interface doesn't make any sense
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# perhaps an assertion that there is a dhcp server and a dns server on the IP address serviced by the hostapd?
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with pkgs.lib;
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let
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cfg = config.services.hostapd;
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configFile = pkgs.writeText "hostapd.conf"
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''
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interface=${cfg.interface}
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driver=${cfg.driver}
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ssid=${cfg.ssid}
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hw_mode=${cfg.hwMode}
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channel=${toString cfg.channel}
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# logging (debug level)
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logger_syslog=-1
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logger_syslog_level=2
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logger_stdout=-1
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logger_stdout_level=2
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ctrl_interface=/var/run/hostapd
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ctrl_interface_group=${cfg.group}
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${if cfg.wpa then ''
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wpa=1
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wpa_passphrase=${cfg.wpaPassphrase}
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'' else ""}
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${cfg.extraCfg}
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'' ;
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in
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{
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###### interface
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options = {
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services.hostapd = {
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enable = mkOption {
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default = false;
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description = ''
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enable putting a wireless interface into infrastructure mode,
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allowing other wireless devices to associate with the wireless interface and do
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wireless networking. A simple access point will enable hostapd.wpa, and
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hostapd.wpa_passphrase, hostapd.ssid, dhcpd on the wireless interface to
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provide IP addresses to the associated stations, and nat (from the wireless
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interface to an upstream interface).
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'';
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};
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interface = mkOption {
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default = "";
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example = "wlan0";
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description = ''
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The interfaces <command>hostapd</command> will use.
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'';
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};
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driver = mkOption {
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default = "nl80211";
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example = "hostapd";
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type = types.string;
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description = "Which driver hostapd will use. Most things will probably use the default.";
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};
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ssid = mkOption {
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default = "nixos";
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example = "mySpecialSSID";
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type = types.string;
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description = "SSID to be used in IEEE 802.11 management frames.";
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};
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hwMode = mkOption {
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default = "b";
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example = "g";
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type = types.string;
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description = "Operation mode (a = IEEE 802.11a, b = IEEE 802.11b, g = IEEE 802.11g";
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};
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channel = mkOption {
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default = 7;
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example = 11;
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type = types.int;
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description =
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''
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Channel number (IEEE 802.11)
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Please note that some drivers do not use this value from hostapd and the
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channel will need to be configured separately with iwconfig.
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'';
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};
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group = mkOption {
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default = "wheel";
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example = "network";
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type = types.string;
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description = "members of this group can control hostapd";
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};
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wpa = mkOption {
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default = true;
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description = "enable WPA (IEEE 802.11i/D3.0) to authenticate to the access point";
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};
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wpaPassphrase = mkOption {
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default = "my_sekret";
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example = "any_64_char_string";
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type = types.string;
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description = "WPA-PSK (pre-shared-key) passphrase. Clients will need this passphrase to associate with this access point";
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};
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extraCfg = mkOption {
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default = "";
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example = ''
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auth_algo=0
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ieee80211n=1
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ht_capab=[HT40-][SHORT-GI-40][DSSS_CCK-40]
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'';
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type = types.string;
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description = "Extra configuration options to put in the hostapd.conf";
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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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environment.systemPackages = [ pkgs.hostapd ];
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jobs.hostapd =
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{ startOn = "started network-interfaces";
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stopOn = "stopping network-interfaces";
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script =
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''
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exec ${pkgs.hostapd}/bin/hostapd ${configFile}
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'';
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};
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};
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}
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