[PATCH v4 11/17] mesh: Allow DFS channels to be selected if dfs is enabled

[peter.oh@xxxxxxxxxxxxxxxxx]

From: Peter Oh <peter.oh@xxxxxxxxxxxxxxxxx>

Note: DFS is assumed to be usable if a country code has been set

Signed-off-by: Benjamin Berg <benjamin@xxxxxxxxxxxxxxxx>
Signed-off-by: Peter Oh <peter.oh@xxxxxxxxxxxxxxxxx>
---
 wpa_supplicant/events.c         |  4 ++--
 wpa_supplicant/wpa_supplicant.c | 24 ++++++++++++++++++------
 2 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c
index 4753743..b6ebd65 100644
--- a/wpa_supplicant/events.c
+++ b/wpa_supplicant/events.c
@@ -3802,7 +3802,7 @@ static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
 				       struct dfs_event *radar)
 {
 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
-	if (wpa_s->ap_iface) {
+	if (wpa_s->ap_iface || wpa_s->ifmsh) {
 		wpas_ap_event_dfs_cac_started(wpa_s, radar);
 	} else
 #endif /* NEED_AP_MLME && CONFIG_AP */
@@ -3839,7 +3839,7 @@ static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
 				       struct dfs_event *radar)
 {
 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
-	if (wpa_s->ap_iface) {
+	if (wpa_s->ap_iface || wpa_s->ifmsh) {
 		wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
 	} else
 #endif /* NEED_AP_MLME && CONFIG_AP */
diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c
index 3de9198..df71b4f 100644
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -2060,6 +2060,8 @@ void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
 	struct hostapd_freq_params vht_freq;
 	int chwidth, seg0, seg1;
 	u32 vht_caps = 0;
+	int dfs_enabled = wpa_s->conf->country[0] &&
+		(wpa_s->drv_flags & WPA_DRIVER_FLAGS_RADAR);
 
 	freq->freq = ssid->frequency;
 
@@ -2136,8 +2138,11 @@ void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
 		return;
 
 	/* Check primary channel flags */
-	if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
+	if (pri_chan->flag & HOSTAPD_CHAN_DISABLED)
 		return;
+	if (pri_chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
+		if (!dfs_enabled)
+			return;
 
 #ifdef CONFIG_HT_OVERRIDES
 	if (ssid->disable_ht40)
@@ -2163,8 +2168,11 @@ void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
 		return;
 
 	/* Check secondary channel flags */
-	if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
+	if (sec_chan->flag & HOSTAPD_CHAN_DISABLED)
 		return;
+	if (sec_chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
+		if (!dfs_enabled)
+			return;
 
 	freq->channel = pri_chan->chan;
 
@@ -2254,8 +2262,11 @@ void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
 			return;
 
 		/* Back to HT configuration if channel not usable */
-		if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
+		if (chan->flag & HOSTAPD_CHAN_DISABLED)
 			return;
+		if (chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
+			if (!dfs_enabled)
+				return;
 	}
 
 	chwidth = VHT_CHANWIDTH_80MHZ;
@@ -2275,10 +2286,11 @@ void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
 				if (!chan)
 					continue;
 
-				if (chan->flag & (HOSTAPD_CHAN_DISABLED |
-						  HOSTAPD_CHAN_NO_IR |
-						  HOSTAPD_CHAN_RADAR))
+				if (chan->flag & HOSTAPD_CHAN_DISABLED)
 					continue;
+				if (chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
+					if (!dfs_enabled)
+						continue;
 
 				/* Found a suitable second segment for 80+80 */
 				chwidth = VHT_CHANWIDTH_80P80MHZ;
-- 
2.7.4


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