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wpa_supplicant module: add networks option

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This commit is contained in:
Robin Gloster 2015-12-29 10:21:38 +00:00
parent 9dceabc95d
commit 56a53ff458
2 changed files with 56 additions and 24 deletions
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14
nixos/doc/manual/configuration/wireless.xml
View File

@ -18,8 +18,18 @@ NixOS will start wpa_supplicant for you if you enable this setting:
networking.wireless.enable = true;
</programlisting>
NixOS currently does not generate wpa_supplicant's
configuration file, <literal>/etc/wpa_supplicant.conf</literal>. You should edit this file
NixOS lets you specify networks for wpa_supplicant declaratively:
<programlisting>
networking.wireless.networks = {
echelon = {
psk = "abcdefgh";
};
"free.wifi" = {};
}
</programlisting>
When no networks are set it will default to using a configuration file at
<literal>/etc/wpa_supplicant.conf</literal>. You should edit this file
yourself to define wireless networks, WPA keys and so on (see
wpa_supplicant.conf(5)).
</para>

66
nixos/modules/services/networking/wpa_supplicant.nix
View File

@ -4,33 +4,29 @@ with lib;
let
cfg = config.networking.wireless;
configFile = "/etc/wpa_supplicant.conf";
configFile = if cfg.networks != {} then pkgs.writeText "wpa_supplicant.conf" ''
${optionalString cfg.userControlled.enable ''
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=${cfg.userControlled.group}
update_config=1''}
${concatStringsSep "\n" (mapAttrsToList (ssid: networkConfig: ''
network={
ssid="${ssid}"
${optionalString (networkConfig.psk != null) ''psk="${networkConfig.psk}"''}
${optionalString (networkConfig.psk == null) ''key_mgmt=NONE''}
}
'') cfg.networks)}
'' else "/etc/wpa_supplicant.conf";
in {
options = {
networking.wireless = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to start <command>wpa_supplicant</command> to scan for
and associate with wireless networks. Note: NixOS currently
does not manage <command>wpa_supplicant</command>'s
configuration file, <filename>${configFile}</filename>. You
should edit this file yourself to define wireless networks,
WPA keys and so on (see
<citerefentry><refentrytitle>wpa_supplicant.conf</refentrytitle>
<manvolnum>5</manvolnum></citerefentry>), or use
networking.wireless.userControlled.* to allow users to add entries
through <command>wpa_cli</command> and <command>wpa_gui</command>.
'';
};
enable = mkEnableOption "wpa_supplicant";
interfaces = mkOption {
type = types.listOf types.str;
default = [];
example = [ "wlan0" "wlan1" ];
description = ''
The interfaces <command>wpa_supplicant</command> will use. If empty, it will
The interfaces <command>wpa_supplicant</command> will use. If empty, it will
automatically use all wireless interfaces.
'';
};
@ -41,6 +37,34 @@ in {
description = "Force a specific wpa_supplicant driver.";
};
networks = mkOption {
type = types.attrsOf (types.submodule {
options = {
psk = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
The network's pre-shared key in plaintext defaulting
to being a network without any authentication.
'';
};
};
});
description = ''
The network definitions to automatically connect to when
<command>wpa_supplicant</command> is running. If this
parameter is left empty wpa_supplicant will use
/etc/wpa_supplicant.conf as the configuration file.
'';
default = {};
example = literalExample ''
echelon = {
psk = "abcdefgh";
};
"free.wifi" = {};
'';
};
userControlled = {
enable = mkOption {
type = types.bool;
@ -51,10 +75,8 @@ in {
to depend on a large package such as NetworkManager just to pick nearby
access points.
When you want to use this, make sure ${configFile} doesn't exist.
It will be created for you.
Currently it is also necessary to explicitly specify networking.wireless.interfaces.
When using a declarative network specification you cannot persist any
settings via wpa_gui or wpa_cli.
'';
};