From 768d09be8781228d3553142c0f1e1231c6aacc7c Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 24 Jan 2015 19:27:22 +0000
Subject: [PATCH] mac80211/hostapd: fix HT mode setup for RSN ad-hoc networks

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 44100
---
 .../files/lib/netifd/wireless/mac80211.sh     | 62 ++++++++++---------
 .../network/services/hostapd/files/netifd.sh  |  3 +-
 2 files changed, 35 insertions(+), 30 deletions(-)

diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
index c7935b567fc..1a85d15ed62 100644
--- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
@@ -490,6 +490,38 @@ mac80211_setup_supplicant() {
 	wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
 }
 
+mac80211_setup_adhoc_htmode() {
+	case "$htmode" in
+		VHT20|HT20) ibss_htmode=HT20;;
+		HT40*|VHT40|VHT80|VHT160)
+			case "$hwmode" in
+				a)
+					case "$(( ($channel / 4) % 2 ))" in
+						1) ibss_htmode="HT40+" ;;
+						0) ibss_htmode="HT40-";;
+					esac
+				;;
+				*)
+					case "$htmode" in
+						HT40+) ibss_htmode="HT40+";;
+						HT40-) ibss_htmode="HT40-";;
+						*)
+							if [ "$channel" -lt 7 ]; then
+								ibss_htmode="HT40+"
+							else
+								ibss_htmode="HT40-"
+							fi
+						;;
+					esac
+				;;
+			esac
+			[ "$auto_channel" -gt 0 ] && ibss_htmode="HT40+"
+		;;
+		*) ibss_htmode="" ;;
+	esac
+
+}
+
 mac80211_setup_adhoc() {
 	json_get_vars bssid ssid key mcast_rate
 
@@ -523,35 +555,6 @@ mac80211_setup_adhoc() {
 	mcval=
 	[ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 
-	case "$htmode" in
-		VHT20|HT20) ibss_htmode=HT20;;
-		HT40*|VHT40|VHT80|VHT160)
-			case "$hwmode" in
-				a)
-					case "$(( ($channel / 4) % 2 ))" in
-						1) ibss_htmode="HT40+" ;;
-						0) ibss_htmode="HT40-";;
-					esac
-				;;
-				*)
-					case "$htmode" in
-						HT40+) ibss_htmode="HT40+";;
-						HT40-) ibss_htmode="HT40-";;
-						*)
-							if [ "$channel" -lt 7 ]; then
-								ibss_htmode="HT40+"
-							else
-								ibss_htmode="HT40-"
-							fi
-						;;
-					esac
-				;;
-			esac
-			[ "$auto_channel" -gt 0 ] && ibss_htmode="HT40+"
-		;;
-		*) ibss_htmode="" ;;
-	esac
-
 	iw dev "$ifname" ibss join "$ssid" $freq $ibss_htmode fixed-freq $bssid \
 		${beacon_int:+beacon-interval $beacon_int} \
 		${brstr:+basic-rates $brstr} \
@@ -602,6 +605,7 @@ mac80211_setup_vif() {
 		;;
 		adhoc)
 			wireless_vif_parse_encryption
+			mac80211_setup_adhoc_htmode
 			if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
 				mac80211_setup_supplicant || failed=1
 			else
diff --git a/package/network/services/hostapd/files/netifd.sh b/package/network/services/hostapd/files/netifd.sh
index d6257090ac3..83fb129fe11 100644
--- a/package/network/services/hostapd/files/netifd.sh
+++ b/package/network/services/hostapd/files/netifd.sh
@@ -596,7 +596,8 @@ wpa_supplicant_add_network() {
 	}
 
 	local ht_str
-	[ -n "$ht" ] && append network_data "htmode=$ht" "$N$T"
+	[[ "$_w_mode" = adhoc ]] || ibss_htmode=
+	[ -n "$ibss_htmode" ] && append network_data "htmode=$ibss_htmode" "$N$T"
 
 	cat >> "$_config" <<EOF
 network={