From f5753aae233fa64b5d4784ade2cc170f7da539a4 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 22 Nov 2018 20:53:09 +0100
Subject: hostapd: add support for WPS pushbutton station

similar to hostapd, also add a ubus interface for wpa_supplicant
which will allow handling WPS push-button just as it works for hostapd.
In order to have wpa_supplicant running without any network
configuration (so you can use it to retrieve credentials via WPS),
configure wifi-iface in /etc/config/wireless:

  config wifi-iface 'default_radio0'
      option device 'radio0'
      option network 'wwan'
      option mode 'sta'
      option encryption 'wps'

This section will automatically be edited if credentials have
successfully been acquired via WPS.

Size difference (mips_24kc): roughly +4kb for the 'full' variants of
wpa_supplicant and wpad which do support WPS.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 package/network/services/hostapd/files/hostapd.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'package/network/services/hostapd/files/hostapd.sh')

diff --git a/package/network/services/hostapd/files/hostapd.sh b/package/network/services/hostapd/files/hostapd.sh
index 7f3157cd27..7335e75fd5 100644
--- a/package/network/services/hostapd/files/hostapd.sh
+++ b/package/network/services/hostapd/files/hostapd.sh
@@ -762,6 +762,9 @@ wpa_supplicant_add_network() {
 			hostapd_append_wep_key network_data
 			append network_data "wep_tx_keyidx=$wep_keyidx" "$N$T"
 		;;
+		wps)
+			key_mgmt='WPS'
+		;;
 		psk|sae|psk-sae)
 			local passphrase
 
@@ -869,7 +872,10 @@ wpa_supplicant_add_network() {
 		append network_data "mcast_rate=$mc_rate" "$N$T"
 	}
 
-	cat >> "$_config" <<EOF
+	if [ "$key_mgnt" = "WPS" ]; then
+		echo "wps_cred_processing=1" >> "$_config"
+	else
+		cat >> "$_config" <<EOF
 network={
 	$scan_ssid
 	ssid="$ssid"
@@ -877,6 +883,7 @@ network={
 	$network_data
 }
 EOF
+	fi
 	return 0
 }
 
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