From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Thu, 17 Dec 2015 16:37:19 +0000 (+0200)
Subject: mesh: Fix VHT Operation information in peering messages
X-Git-Tag: hostap_2_6~1186
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d06a35052f182d3aebc7b7e1c780cca7b386997d;p=thirdparty%2Fhostap.git

mesh: Fix VHT Operation information in peering messages

The full VHT channel information was not set in the hostapd data
structures which resulted in incorrect information (all zeros) being
used when building the VHT Operation element for peering messages while
the actual driver mode was set with the full details. We did not seem to
use the VHT information from peering messages, so this does not change
behavior with another wpa_supplicant-based mesh implementation. Anyway,
these elements should match the ones used in Beacon frames.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
---

diff --git a/wpa_supplicant/mesh.c b/wpa_supplicant/mesh.c
index 8f74b5d6e..7925aa91a 100644
--- a/wpa_supplicant/mesh.c
+++ b/wpa_supplicant/mesh.c
@@ -193,6 +193,29 @@ static int wpa_supplicant_mesh_init(struct wpa_supplicant *wpa_s,
 			   ssid->frequency);
 		goto out_free;
 	}
+	if (ssid->ht40)
+		conf->secondary_channel = ssid->ht40;
+	if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && ssid->vht) {
+		conf->vht_oper_chwidth = ssid->max_oper_chwidth;
+		switch (conf->vht_oper_chwidth) {
+		case VHT_CHANWIDTH_80MHZ:
+		case VHT_CHANWIDTH_80P80MHZ:
+			ieee80211_freq_to_chan(
+				ssid->frequency,
+				&conf->vht_oper_centr_freq_seg0_idx);
+			conf->vht_oper_centr_freq_seg0_idx += ssid->ht40 * 2;
+			break;
+		case VHT_CHANWIDTH_160MHZ:
+			ieee80211_freq_to_chan(
+				ssid->frequency,
+				&conf->vht_oper_centr_freq_seg0_idx);
+			conf->vht_oper_centr_freq_seg0_idx += ssid->ht40 * 2;
+			conf->vht_oper_centr_freq_seg0_idx += 40 / 5;
+			break;
+		}
+		ieee80211_freq_to_chan(ssid->vht_center_freq2,
+				       &conf->vht_oper_centr_freq_seg1_idx);
+	}
 
 	if (ssid->mesh_basic_rates == NULL) {
 		/*
@@ -334,6 +357,28 @@ int wpa_supplicant_join_mesh(struct wpa_supplicant *wpa_s,
 	ibss_mesh_setup_freq(wpa_s, ssid, &params.freq);
 	wpa_s->mesh_ht_enabled = !!params.freq.ht_enabled;
 	wpa_s->mesh_vht_enabled = !!params.freq.vht_enabled;
+	if (params.freq.ht_enabled && params.freq.sec_channel_offset)
+		ssid->ht40 = params.freq.sec_channel_offset;
+	if (wpa_s->mesh_vht_enabled) {
+		ssid->vht = 1;
+		switch (params.freq.bandwidth) {
+		case 80:
+			if (params.freq.center_freq2) {
+				ssid->max_oper_chwidth = VHT_CHANWIDTH_80P80MHZ;
+				ssid->vht_center_freq2 =
+					params.freq.center_freq2;
+			} else {
+				ssid->max_oper_chwidth = VHT_CHANWIDTH_80MHZ;
+			}
+			break;
+		case 160:
+			ssid->max_oper_chwidth = VHT_CHANWIDTH_160MHZ;
+			break;
+		default:
+			ssid->max_oper_chwidth = VHT_CHANWIDTH_USE_HT;
+			break;
+		}
+	}
 	if (ssid->beacon_int > 0)
 		params.beacon_int = ssid->beacon_int;
 	else if (wpa_s->conf->beacon_int > 0)