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hostapd: Add noscan mode.

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Applies OpenWRT's noscan patch to hostapd and the relevant option to
the hostapd module.

This noscan patch adds a new `noscan` option allowing us to create
some overlapping BSSs in HT40+/- mode.

Note: this option is disabled by default, we leave this up to the end
user whether it should be enabled or not.

Not being able to create those overlapping BSSs is basically
preventing us to use 802.11n in any urban area where chances to
overlap with another SSID are extremely high.

The patch we are using is a courtesy of the openwrt team and is
applied to the defaul hostapd package in both OpenWRT and Archlinux.
This commit is contained in:
Félix Baylac-Jacqué 2019-06-23 21:33:14 +02:00
parent 8fb630b26c
commit 98deb87354
No known key found for this signature in database
GPG Key ID: EFD315F31848DBA4
2 changed files with 19 additions and 4 deletions
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13
nixos/modules/services/networking/hostapd.nix
View File

@ -30,10 +30,11 @@ let
ctrl_interface=/run/hostapd
ctrl_interface_group=${cfg.group}
${if cfg.wpa then ''
${optionalString cfg.wpa ''
wpa=2
wpa_passphrase=${cfg.wpaPassphrase}
'' else ""}
''}
${optionalString cfg.noScan "noscan=1"}
${cfg.extraConfig}
'' ;
@ -69,6 +70,14 @@ in
'';
};
noScan = mkOption {
default = false;
description = ''
Do not scan for overlapping BSSs in HT40+/- mode.
Caution: turning this on will violate regulatory requirements!
'';
};
driver = mkOption {
default = "nl80211";
example = "hostapd";

10
pkgs/os-specific/linux/hostapd/default.nix
View File

@ -1,7 +1,11 @@
{ stdenv, fetchurl, pkgconfig, libnl, openssl, sqlite ? null }:
with stdenv.lib;
stdenv.mkDerivation rec {
let noScanPatch = fetchurl {
url="https://git.telliq.com/gtu/openwrt/raw/master/package/network/services/hostapd/patches/300-noscan.patch";
sha256 = "04wg4yjc19wmwk6gia067z99gzzk9jacnwxh5wyia7k5wg71yj5k";
};
in stdenv.mkDerivation rec {
name = "hostapd-${version}";
version = "2.8";
@ -13,6 +17,8 @@ stdenv.mkDerivation rec {
nativeBuildInputs = [ pkgconfig ];
buildInputs = [ libnl openssl sqlite ];
patches = [ noScanPatch ];
outputs = [ "out" "man" ];
extraConfig = ''
@ -66,7 +72,7 @@ stdenv.mkDerivation rec {
repositories.git = git://w1.fi/hostap.git;
description = "A user space daemon for access point and authentication servers";
license = licenses.gpl2;
maintainers = with maintainers; [ phreedom ];
maintainers = with maintainers; [ phreedom ninjatrappeur ];
platforms = platforms.linux;
};
}