[PATCH V3 4/8] HE: add helpers for getting the channel width parameters

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Signed-off-by: Shashidhar Lakkavalli <slakkavalli@xxxxxxxxx>
Signed-off-by: John Crispin <john@xxxxxxxxxxx>
---
 src/ap/acs.c                    |  19 +++---
 src/ap/ap_drv_ops.c             |  18 +++---
 src/ap/ap_drv_ops.h             |  58 ++++++++++++++++++-
 src/ap/beacon.c                 |   8 +--
 src/ap/dfs.c                    | 124 +++++++++++++++++++---------------------
 src/ap/drv_callbacks.c          |  31 +++++-----
 src/ap/hostapd.c                |  67 +++++++++++-----------
 src/ap/hw_features.c            |   7 +--
 src/ap/neighbor_db.c            |  17 +++---
 src/common/hw_features_common.c |   8 +--
 src/common/hw_features_common.h |   2 +-
 11 files changed, 203 insertions(+), 156 deletions(-)

diff --git a/src/ap/acs.c b/src/ap/acs.c
index 3682dcd94..4414ad6a3 100644
--- a/src/ap/acs.c
+++ b/src/ap/acs.c
@@ -595,7 +595,7 @@ acs_find_ideal_chan(struct hostapd_iface *iface)
 		n_chans = 2;
 
 	if (iface->conf->ieee80211ac) {
-		switch (iface->conf->vht_oper_chwidth) {
+		switch (hostapd_get_oper_chwidth(iface->conf)) {
 		case CHANWIDTH_80MHZ:
 			n_chans = 4;
 			break;
@@ -607,7 +607,7 @@ acs_find_ideal_chan(struct hostapd_iface *iface)
 
 	bw = num_chan_to_bw(n_chans);
 
-	/* TODO: VHT80+80. Update acs_adjust_vht_center_freq() too. */
+	/* TODO: VHT80+80. Update acs_adjust_center_freq() too. */
 
 	wpa_printf(MSG_DEBUG,
 		   "ACS: Survey analysis for selected bandwidth %d MHz", bw);
@@ -648,7 +648,7 @@ acs_find_ideal_chan(struct hostapd_iface *iface)
 
 		if (iface->current_mode->mode == HOSTAPD_MODE_IEEE80211A &&
 		    iface->conf->ieee80211ac) {
-			if (iface->conf->vht_oper_chwidth ==
+			if (hostapd_get_oper_chwidth(iface->conf) ==
 			    CHANWIDTH_80MHZ &&
 			    !acs_usable_vht80_chan(chan)) {
 				wpa_printf(MSG_DEBUG,
@@ -657,7 +657,7 @@ acs_find_ideal_chan(struct hostapd_iface *iface)
 				continue;
 			}
 
-			if (iface->conf->vht_oper_chwidth ==
+			if (hostapd_get_oper_chwidth(iface->conf) ==
 			    CHANWIDTH_160MHZ &&
 			    !acs_usable_vht160_chan(chan)) {
 				wpa_printf(MSG_DEBUG,
@@ -783,13 +783,13 @@ acs_find_ideal_chan(struct hostapd_iface *iface)
 }
 
 
-static void acs_adjust_vht_center_freq(struct hostapd_iface *iface)
+static void acs_adjust_center_freq(struct hostapd_iface *iface)
 {
 	int offset;
 
 	wpa_printf(MSG_DEBUG, "ACS: Adjusting VHT center frequency");
 
-	switch (iface->conf->vht_oper_chwidth) {
+	switch (hostapd_get_oper_chwidth(iface->conf)) {
 	case CHANWIDTH_USE_HT:
 		offset = 2 * iface->conf->secondary_channel;
 		break;
@@ -807,8 +807,7 @@ static void acs_adjust_vht_center_freq(struct hostapd_iface *iface)
 		return;
 	}
 
-	iface->conf->vht_oper_centr_freq_seg0_idx =
-		iface->conf->channel + offset;
+	hostapd_set_oper_centr_freq_seg0_idx(iface->conf, iface->conf->channel + offset);
 }
 
 
@@ -863,8 +862,8 @@ static void acs_study(struct hostapd_iface *iface)
 
 	iface->conf->channel = ideal_chan->chan;
 
-	if (iface->conf->ieee80211ac)
-		acs_adjust_vht_center_freq(iface);
+	if (iface->conf->ieee80211ac || iface->conf->ieee80211ax)
+		acs_adjust_center_freq(iface);
 
 	err = 0;
 fail:
diff --git a/src/ap/ap_drv_ops.c b/src/ap/ap_drv_ops.c
index c7f5be867..7a8d160d8 100644
--- a/src/ap/ap_drv_ops.c
+++ b/src/ap/ap_drv_ops.c
@@ -543,14 +543,14 @@ int hostapd_flush(struct hostapd_data *hapd)
 
 int hostapd_set_freq(struct hostapd_data *hapd, enum hostapd_hw_mode mode,
 		     int freq, int channel, int ht_enabled, int vht_enabled,
-		     int sec_channel_offset, int vht_oper_chwidth,
+		     int sec_channel_offset, int oper_chwidth,
 		     int center_segment0, int center_segment1)
 {
 	struct hostapd_freq_params data;
 
 	if (hostapd_set_freq_params(&data, mode, freq, channel, ht_enabled,
 				    vht_enabled, sec_channel_offset,
-				    vht_oper_chwidth,
+				    oper_chwidth,
 				    center_segment0, center_segment1,
 				    hapd->iface->current_mode ?
 				    hapd->iface->current_mode->vht_capab : 0))
@@ -781,7 +781,7 @@ int hostapd_drv_send_action_addr3_ap(struct hostapd_data *hapd,
 int hostapd_start_dfs_cac(struct hostapd_iface *iface,
 			  enum hostapd_hw_mode mode, int freq,
 			  int channel, int ht_enabled, int vht_enabled,
-			  int sec_channel_offset, int vht_oper_chwidth,
+			  int sec_channel_offset, int oper_chwidth,
 			  int center_segment0, int center_segment1)
 {
 	struct hostapd_data *hapd = iface->bss[0];
@@ -799,7 +799,7 @@ int hostapd_start_dfs_cac(struct hostapd_iface *iface,
 
 	if (hostapd_set_freq_params(&data, mode, freq, channel, ht_enabled,
 				    vht_enabled, sec_channel_offset,
-				    vht_oper_chwidth, center_segment0,
+				    oper_chwidth, center_segment0,
 				    center_segment1,
 				    iface->current_mode->vht_capab)) {
 		wpa_printf(MSG_ERROR, "Can't set freq params");
@@ -925,14 +925,16 @@ int hostapd_drv_do_acs(struct hostapd_data *hapd)
 	if (hapd->iface->conf->ieee80211n && params.ht40_enabled)
 		params.ch_width = 40;
 
-	/* Note: VHT20 is defined by combination of ht_capab & vht_oper_chwidth
+	/* Note: VHT20 is defined by combination of ht_capab & oper_chwidth
 	 */
 	if (hapd->iface->conf->ieee80211ac && params.ht40_enabled) {
-		if (hapd->iface->conf->vht_oper_chwidth == CHANWIDTH_80MHZ)
+		u8 oper_chwidth = hostapd_get_oper_chwidth(hapd->iface->conf);
+
+		if (oper_chwidth == CHANWIDTH_80MHZ)
 			params.ch_width = 80;
-		else if (hapd->iface->conf->vht_oper_chwidth ==
+		else if (oper_chwidth ==
 			 CHANWIDTH_160MHZ ||
-			 hapd->iface->conf->vht_oper_chwidth ==
+			 oper_chwidth ==
 			 CHANWIDTH_80P80MHZ)
 			params.ch_width = 160;
 	}
diff --git a/src/ap/ap_drv_ops.h b/src/ap/ap_drv_ops.h
index db9653868..33cfbc721 100644
--- a/src/ap/ap_drv_ops.h
+++ b/src/ap/ap_drv_ops.h
@@ -65,7 +65,7 @@ int hostapd_get_seqnum(const char *ifname, struct hostapd_data *hapd,
 int hostapd_flush(struct hostapd_data *hapd);
 int hostapd_set_freq(struct hostapd_data *hapd, enum hostapd_hw_mode mode,
 		     int freq, int channel, int ht_enabled, int vht_enabled,
-		     int sec_channel_offset, int vht_oper_chwidth,
+		     int sec_channel_offset, int oper_chwidth,
 		     int center_segment0, int center_segment1);
 int hostapd_set_rts(struct hostapd_data *hapd, int rts);
 int hostapd_set_frag(struct hostapd_data *hapd, int frag);
@@ -126,7 +126,7 @@ int hostapd_add_tspec(struct hostapd_data *hapd, const u8 *addr,
 int hostapd_start_dfs_cac(struct hostapd_iface *iface,
 			  enum hostapd_hw_mode mode, int freq,
 			  int channel, int ht_enabled, int vht_enabled,
-			  int sec_channel_offset, int vht_oper_chwidth,
+			  int sec_channel_offset, int oper_chwidth,
 			  int center_segment0, int center_segment1);
 int hostapd_drv_do_acs(struct hostapd_data *hapd);
 
@@ -378,4 +378,58 @@ hostapd_drv_send_external_auth_status(struct hostapd_data *hapd,
 	return hapd->driver->send_external_auth_status(hapd->drv_priv, params);
 }
 
+static inline u8 hostapd_get_oper_chwidth(struct hostapd_config *conf)
+{
+#ifdef CONFIG_IEEE80211AX
+	if (conf->ieee80211ax)
+		return conf->he_oper_chwidth;
+#endif
+	return conf->vht_oper_chwidth;
+}
+
+static inline void hostapd_set_oper_chwidth(struct hostapd_config *conf, u8 oper_chwidth)
+{
+#ifdef CONFIG_IEEE80211AX
+	if (conf->ieee80211ax)
+		conf->he_oper_chwidth = oper_chwidth;
+#endif
+	conf->vht_oper_chwidth = oper_chwidth;
+}
+
+static inline u8 hostapd_get_oper_centr_freq_seg0_idx(struct hostapd_config *conf)
+{
+#ifdef CONFIG_IEEE80211AX
+	if (conf->ieee80211ax)
+		return conf->he_oper_centr_freq_seg0_idx;
+#endif
+	return conf->vht_oper_centr_freq_seg0_idx;
+}
+
+static inline void hostapd_set_oper_centr_freq_seg0_idx(struct hostapd_config *conf, u8 oper_centr_freq_seg0_idx)
+{
+#ifdef CONFIG_IEEE80211AX
+	if (conf->ieee80211ax)
+		conf->he_oper_centr_freq_seg0_idx = oper_centr_freq_seg0_idx;
+#endif
+	conf->vht_oper_centr_freq_seg0_idx = oper_centr_freq_seg0_idx;
+}
+
+static inline u8 hostapd_get_oper_centr_freq_seg1_idx(struct hostapd_config *conf)
+{
+#ifdef CONFIG_IEEE80211AX
+	if (conf->ieee80211ax)
+		return conf->he_oper_centr_freq_seg1_idx;
+#endif
+	return conf->vht_oper_centr_freq_seg1_idx;
+}
+
+static inline void hostapd_set_oper_centr_freq_seg1_idx(struct hostapd_config *conf, u8 oper_centr_freq_seg1_idx)
+{
+#ifdef CONFIG_IEEE80211AX
+	if (conf->ieee80211ax)
+		conf->he_oper_centr_freq_seg1_idx = oper_centr_freq_seg1_idx;
+#endif
+	conf->vht_oper_centr_freq_seg1_idx = oper_centr_freq_seg1_idx;
+}
+
 #endif /* AP_DRV_OPS */
diff --git a/src/ap/beacon.c b/src/ap/beacon.c
index 8433fc3a9..ef5bce36c 100644
--- a/src/ap/beacon.c
+++ b/src/ap/beacon.c
@@ -347,7 +347,7 @@ static u8 * hostapd_eid_supported_op_classes(struct hostapd_data *hapd, u8 *eid)
 
 	if (ieee80211_freq_to_channel_ext(hapd->iface->freq,
 					  hapd->iconf->secondary_channel,
-					  hapd->iconf->vht_oper_chwidth,
+					  hostapd_get_oper_chwidth(hapd->iconf),
 					  &op_class, &channel) ==
 	    NUM_HOSTAPD_MODES)
 		return eid;
@@ -1426,9 +1426,9 @@ int ieee802_11_set_beacon(struct hostapd_data *hapd)
 				    iconf->channel, iconf->ieee80211n,
 				    iconf->ieee80211ac,
 				    iconf->secondary_channel,
-				    iconf->vht_oper_chwidth,
-				    iconf->vht_oper_centr_freq_seg0_idx,
-				    iconf->vht_oper_centr_freq_seg1_idx,
+				    hostapd_get_oper_chwidth(iconf),
+				    hostapd_get_oper_centr_freq_seg0_idx(iconf),
+				    hostapd_get_oper_centr_freq_seg1_idx(iconf),
 				    iface->current_mode->vht_capab) == 0)
 		params.freq = &freq;
 
diff --git a/src/ap/dfs.c b/src/ap/dfs.c
index 97c5acfed..5e1cbb980 100644
--- a/src/ap/dfs.c
+++ b/src/ap/dfs.c
@@ -29,7 +29,7 @@ static int dfs_get_used_n_chans(struct hostapd_iface *iface, int *seg1)
 		n_chans = 2;
 
 	if (iface->conf->ieee80211ac) {
-		switch (iface->conf->vht_oper_chwidth) {
+		switch (hostapd_get_oper_chwidth(iface->conf)) {
 		case CHANWIDTH_USE_HT:
 			break;
 		case CHANWIDTH_80MHZ:
@@ -188,8 +188,8 @@ static int is_in_chanlist(struct hostapd_iface *iface,
  * The function assumes HT40+ operation.
  * Make sure to adjust the following variables after calling this:
  *  - hapd->secondary_channel
- *  - hapd->vht_oper_centr_freq_seg0_idx
- *  - hapd->vht_oper_centr_freq_seg1_idx
+ *  - hapd->vht/he_oper_centr_freq_seg0_idx
+ *  - hapd->vht/he_oper_centr_freq_seg1_idx
  */
 static int dfs_find_channel(struct hostapd_iface *iface,
 			    struct hostapd_channel_data **ret_chan,
@@ -232,11 +232,11 @@ static int dfs_find_channel(struct hostapd_iface *iface,
 }
 
 
-static void dfs_adjust_vht_center_freq(struct hostapd_iface *iface,
-				       struct hostapd_channel_data *chan,
-				       int secondary_channel,
-				       u8 *vht_oper_centr_freq_seg0_idx,
-				       u8 *vht_oper_centr_freq_seg1_idx)
+static void dfs_adjust_center_freq(struct hostapd_iface *iface,
+				   struct hostapd_channel_data *chan,
+				   int secondary_channel,
+				   u8 *oper_centr_freq_seg0_idx,
+				   u8 *oper_centr_freq_seg1_idx)
 {
 	if (!iface->conf->ieee80211ac)
 		return;
@@ -244,32 +244,32 @@ static void dfs_adjust_vht_center_freq(struct hostapd_iface *iface,
 	if (!chan)
 		return;
 
-	*vht_oper_centr_freq_seg1_idx = 0;
+	*oper_centr_freq_seg1_idx = 0;
 
-	switch (iface->conf->vht_oper_chwidth) {
+	switch (hostapd_get_oper_chwidth(iface->conf)) {
 	case CHANWIDTH_USE_HT:
 		if (secondary_channel == 1)
-			*vht_oper_centr_freq_seg0_idx = chan->chan + 2;
+			*oper_centr_freq_seg0_idx = chan->chan + 2;
 		else if (secondary_channel == -1)
-			*vht_oper_centr_freq_seg0_idx = chan->chan - 2;
+			*oper_centr_freq_seg0_idx = chan->chan - 2;
 		else
-			*vht_oper_centr_freq_seg0_idx = chan->chan;
+			*oper_centr_freq_seg0_idx = chan->chan;
 		break;
 	case CHANWIDTH_80MHZ:
-		*vht_oper_centr_freq_seg0_idx = chan->chan + 6;
+		*oper_centr_freq_seg0_idx = chan->chan + 6;
 		break;
 	case CHANWIDTH_160MHZ:
-		*vht_oper_centr_freq_seg0_idx = chan->chan + 14;
+		*oper_centr_freq_seg0_idx = chan->chan + 14;
 		break;
 	default:
 		wpa_printf(MSG_INFO, "DFS only VHT20/40/80/160 is supported now");
-		*vht_oper_centr_freq_seg0_idx = 0;
+		*oper_centr_freq_seg0_idx = 0;
 		break;
 	}
 
 	wpa_printf(MSG_DEBUG, "DFS adjusting VHT center frequency: %d, %d",
-		   *vht_oper_centr_freq_seg0_idx,
-		   *vht_oper_centr_freq_seg1_idx);
+		   *oper_centr_freq_seg0_idx,
+		   *oper_centr_freq_seg1_idx);
 }
 
 
@@ -290,22 +290,22 @@ static int dfs_get_start_chan_idx(struct hostapd_iface *iface, int *seg1_start)
 
 	/* VHT */
 	if (iface->conf->ieee80211ac) {
-		switch (iface->conf->vht_oper_chwidth) {
+		switch (hostapd_get_oper_chwidth(iface->conf)) {
 		case CHANWIDTH_USE_HT:
 			break;
 		case CHANWIDTH_80MHZ:
 			channel_no =
-				iface->conf->vht_oper_centr_freq_seg0_idx - 6;
+				hostapd_get_oper_centr_freq_seg0_idx(iface->conf) - 6;
 			break;
 		case CHANWIDTH_160MHZ:
 			channel_no =
-				iface->conf->vht_oper_centr_freq_seg0_idx - 14;
+				hostapd_get_oper_centr_freq_seg0_idx(iface->conf) - 14;
 			break;
 		case CHANWIDTH_80P80MHZ:
 			channel_no =
-				iface->conf->vht_oper_centr_freq_seg0_idx - 6;
+				hostapd_get_oper_centr_freq_seg0_idx(iface->conf) - 6;
 			chan_seg1 =
-				iface->conf->vht_oper_centr_freq_seg1_idx - 6;
+				hostapd_get_oper_centr_freq_seg1_idx(iface->conf) - 6;
 			break;
 		default:
 			wpa_printf(MSG_INFO,
@@ -348,7 +348,7 @@ static int dfs_get_start_chan_idx(struct hostapd_iface *iface, int *seg1_start)
 			   mode->num_channels, channel_no, iface->conf->channel,
 			   iface->conf->ieee80211n,
 			   iface->conf->secondary_channel,
-			   iface->conf->vht_oper_chwidth);
+			   hostapd_get_oper_chwidth(iface->conf));
 
 		for (i = 0; i < mode->num_channels; i++) {
 			wpa_printf(MSG_DEBUG, "Available channel: %d",
@@ -435,8 +435,8 @@ static int dfs_check_chans_unavailable(struct hostapd_iface *iface,
 static struct hostapd_channel_data *
 dfs_get_valid_channel(struct hostapd_iface *iface,
 		      int *secondary_channel,
-		      u8 *vht_oper_centr_freq_seg0_idx,
-		      u8 *vht_oper_centr_freq_seg1_idx,
+		      u8 *oper_centr_freq_seg0_idx,
+		      u8 *oper_centr_freq_seg1_idx,
 		      int skip_radar)
 {
 	struct hostapd_hw_modes *mode;
@@ -447,8 +447,8 @@ dfs_get_valid_channel(struct hostapd_iface *iface,
 
 	wpa_printf(MSG_DEBUG, "DFS: Selecting random channel");
 	*secondary_channel = 0;
-	*vht_oper_centr_freq_seg0_idx = 0;
-	*vht_oper_centr_freq_seg1_idx = 0;
+	*oper_centr_freq_seg0_idx = 0;
+	*oper_centr_freq_seg1_idx = 0;
 
 	if (iface->current_mode == NULL)
 		return NULL;
@@ -473,10 +473,10 @@ dfs_get_valid_channel(struct hostapd_iface *iface,
 	else
 		*secondary_channel = 0;
 
-	dfs_adjust_vht_center_freq(iface, chan,
-				   *secondary_channel,
-				   vht_oper_centr_freq_seg0_idx,
-				   vht_oper_centr_freq_seg1_idx);
+	dfs_adjust_center_freq(iface, chan,
+			       *secondary_channel,
+			       oper_centr_freq_seg0_idx,
+			       oper_centr_freq_seg1_idx);
 
 	return chan;
 }
@@ -724,8 +724,8 @@ int hostapd_handle_dfs(struct hostapd_iface *iface)
 			iface->freq = channel->freq;
 			iface->conf->channel = channel->chan;
 			iface->conf->secondary_channel = sec;
-			iface->conf->vht_oper_centr_freq_seg0_idx = cf1;
-			iface->conf->vht_oper_centr_freq_seg1_idx = cf2;
+			hostapd_set_oper_centr_freq_seg0_idx(iface->conf, cf1);
+			hostapd_set_oper_centr_freq_seg1_idx(iface->conf, cf2);
 		}
 	} while (res);
 
@@ -736,9 +736,9 @@ int hostapd_handle_dfs(struct hostapd_iface *iface)
 		"freq=%d chan=%d sec_chan=%d, width=%d, seg0=%d, seg1=%d, cac_time=%ds",
 		iface->freq,
 		iface->conf->channel, iface->conf->secondary_channel,
-		iface->conf->vht_oper_chwidth,
-		iface->conf->vht_oper_centr_freq_seg0_idx,
-		iface->conf->vht_oper_centr_freq_seg1_idx,
+		hostapd_get_oper_chwidth(iface->conf),
+		hostapd_get_oper_centr_freq_seg0_idx(iface->conf),
+		hostapd_get_oper_centr_freq_seg1_idx(iface->conf),
 		iface->dfs_cac_ms / 1000);
 
 	res = hostapd_start_dfs_cac(iface, iface->conf->hw_mode,
@@ -747,9 +747,9 @@ int hostapd_handle_dfs(struct hostapd_iface *iface)
 				    iface->conf->ieee80211n,
 				    iface->conf->ieee80211ac,
 				    iface->conf->secondary_channel,
-				    iface->conf->vht_oper_chwidth,
-				    iface->conf->vht_oper_centr_freq_seg0_idx,
-				    iface->conf->vht_oper_centr_freq_seg1_idx);
+				    hostapd_get_oper_chwidth(iface->conf),
+				    hostapd_get_oper_centr_freq_seg0_idx(iface->conf),
+				    hostapd_get_oper_centr_freq_seg1_idx(iface->conf));
 
 	if (res) {
 		wpa_printf(MSG_ERROR, "DFS start_dfs_cac() failed, %d", res);
@@ -842,16 +842,16 @@ static int hostapd_dfs_start_channel_switch_cac(struct hostapd_iface *iface)
 {
 	struct hostapd_channel_data *channel;
 	int secondary_channel;
-	u8 vht_oper_centr_freq_seg0_idx = 0;
-	u8 vht_oper_centr_freq_seg1_idx = 0;
+	u8 oper_centr_freq_seg0_idx = 0;
+	u8 oper_centr_freq_seg1_idx = 0;
 	int skip_radar = 0;
 	int err = 1;
 
 	/* Radar detected during active CAC */
 	iface->cac_started = 0;
 	channel = dfs_get_valid_channel(iface, &secondary_channel,
-					&vht_oper_centr_freq_seg0_idx,
-					&vht_oper_centr_freq_seg1_idx,
+					&oper_centr_freq_seg0_idx,
+					&oper_centr_freq_seg1_idx,
 					skip_radar);
 
 	if (!channel) {
@@ -868,10 +868,8 @@ static int hostapd_dfs_start_channel_switch_cac(struct hostapd_iface *iface)
 	iface->freq = channel->freq;
 	iface->conf->channel = channel->chan;
 	iface->conf->secondary_channel = secondary_channel;
-	iface->conf->vht_oper_centr_freq_seg0_idx =
-		vht_oper_centr_freq_seg0_idx;
-	iface->conf->vht_oper_centr_freq_seg1_idx =
-		vht_oper_centr_freq_seg1_idx;
+	hostapd_set_oper_centr_freq_seg0_idx(iface->conf, oper_centr_freq_seg0_idx);
+	hostapd_set_oper_centr_freq_seg1_idx(iface->conf, oper_centr_freq_seg1_idx);
 	err = 0;
 
 	hostapd_setup_interface_complete(iface, err);
@@ -883,8 +881,8 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
 {
 	struct hostapd_channel_data *channel;
 	int secondary_channel;
-	u8 vht_oper_centr_freq_seg0_idx;
-	u8 vht_oper_centr_freq_seg1_idx;
+	u8 oper_centr_freq_seg0_idx;
+	u8 oper_centr_freq_seg1_idx;
 	int skip_radar = 1;
 	struct csa_settings csa_settings;
 	unsigned int i;
@@ -911,8 +909,8 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
 
 	/* Perform channel switch/CSA */
 	channel = dfs_get_valid_channel(iface, &secondary_channel,
-					&vht_oper_centr_freq_seg0_idx,
-					&vht_oper_centr_freq_seg1_idx,
+					&oper_centr_freq_seg0_idx,
+					&oper_centr_freq_seg1_idx,
 					skip_radar);
 
 	if (!channel) {
@@ -923,8 +921,8 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
 		 */
 		skip_radar = 0;
 		channel = dfs_get_valid_channel(iface, &secondary_channel,
-						&vht_oper_centr_freq_seg0_idx,
-						&vht_oper_centr_freq_seg1_idx,
+						&oper_centr_freq_seg0_idx,
+						&oper_centr_freq_seg1_idx,
 						skip_radar);
 		if (!channel) {
 			wpa_printf(MSG_INFO,
@@ -936,10 +934,8 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
 		iface->freq = channel->freq;
 		iface->conf->channel = channel->chan;
 		iface->conf->secondary_channel = secondary_channel;
-		iface->conf->vht_oper_centr_freq_seg0_idx =
-			vht_oper_centr_freq_seg0_idx;
-		iface->conf->vht_oper_centr_freq_seg1_idx =
-			vht_oper_centr_freq_seg1_idx;
+		hostapd_set_oper_centr_freq_seg0_idx(iface->conf, oper_centr_freq_seg0_idx);
+		hostapd_set_oper_centr_freq_seg1_idx(iface->conf, oper_centr_freq_seg1_idx);
 
 		hostapd_disable_iface(iface);
 		hostapd_enable_iface(iface);
@@ -963,9 +959,9 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
 				      iface->conf->ieee80211n,
 				      iface->conf->ieee80211ac,
 				      secondary_channel,
-				      iface->conf->vht_oper_chwidth,
-				      vht_oper_centr_freq_seg0_idx,
-				      vht_oper_centr_freq_seg1_idx,
+				      hostapd_get_oper_chwidth(iface->conf),
+				      oper_centr_freq_seg0_idx,
+				      oper_centr_freq_seg1_idx,
 				      iface->current_mode->vht_capab);
 
 	if (err) {
@@ -986,10 +982,8 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
 		iface->freq = channel->freq;
 		iface->conf->channel = channel->chan;
 		iface->conf->secondary_channel = secondary_channel;
-		iface->conf->vht_oper_centr_freq_seg0_idx =
-			vht_oper_centr_freq_seg0_idx;
-		iface->conf->vht_oper_centr_freq_seg1_idx =
-			vht_oper_centr_freq_seg1_idx;
+		hostapd_set_oper_centr_freq_seg0_idx(iface->conf, oper_centr_freq_seg0_idx);
+		hostapd_set_oper_centr_freq_seg1_idx(iface->conf, oper_centr_freq_seg1_idx);
 
 		hostapd_disable_iface(iface);
 		hostapd_enable_iface(iface);
diff --git a/src/ap/drv_callbacks.c b/src/ap/drv_callbacks.c
index 4ac80ab80..f53750a88 100644
--- a/src/ap/drv_callbacks.c
+++ b/src/ap/drv_callbacks.c
@@ -846,9 +846,9 @@ void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
 	hapd->iconf->ch_switch_vht_config = 0;
 
 	hapd->iconf->secondary_channel = offset;
-	hapd->iconf->vht_oper_chwidth = chwidth;
-	hapd->iconf->vht_oper_centr_freq_seg0_idx = seg0_idx;
-	hapd->iconf->vht_oper_centr_freq_seg1_idx = seg1_idx;
+	hostapd_set_oper_chwidth(hapd->iconf, chwidth);
+	hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, seg0_idx);
+	hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, seg1_idx);
 
 	is_dfs = ieee80211_is_dfs(freq, hapd->iface->hw_features,
 				  hapd->iface->num_hw_features);
@@ -955,26 +955,21 @@ void hostapd_acs_channel_selected(struct hostapd_data *hapd,
 
 	if (hapd->iface->conf->ieee80211ac) {
 		/* set defaults for backwards compatibility */
-		hapd->iconf->vht_oper_centr_freq_seg1_idx = 0;
-		hapd->iconf->vht_oper_centr_freq_seg0_idx = 0;
-		hapd->iconf->vht_oper_chwidth = CHANWIDTH_USE_HT;
+		hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, 0);
+		hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, 0);
+		hostapd_set_oper_chwidth(hapd->iconf, CHANWIDTH_USE_HT);
 		if (acs_res->ch_width == 80) {
-			hapd->iconf->vht_oper_centr_freq_seg0_idx =
-				acs_res->vht_seg0_center_ch;
-			hapd->iconf->vht_oper_chwidth = CHANWIDTH_80MHZ;
+			hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, acs_res->vht_seg0_center_ch);
+			hostapd_set_oper_chwidth(hapd->iconf, CHANWIDTH_80MHZ);
 		} else if (acs_res->ch_width == 160) {
 			if (acs_res->vht_seg1_center_ch == 0) {
-				hapd->iconf->vht_oper_centr_freq_seg0_idx =
-					acs_res->vht_seg0_center_ch;
-				hapd->iconf->vht_oper_chwidth =
+				hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, acs_res->vht_seg0_center_ch);
+				hostapd_set_oper_chwidth(hapd->iconf, CHANWIDTH_160MHZ);
 					CHANWIDTH_160MHZ;
 			} else {
-				hapd->iconf->vht_oper_centr_freq_seg0_idx =
-					acs_res->vht_seg0_center_ch;
-				hapd->iconf->vht_oper_centr_freq_seg1_idx =
-					acs_res->vht_seg1_center_ch;
-				hapd->iconf->vht_oper_chwidth =
-					CHANWIDTH_80P80MHZ;
+				hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, acs_res->vht_seg0_center_ch);
+				hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, acs_res->vht_seg1_center_ch);
+				hostapd_set_oper_chwidth(hapd->iconf, CHANWIDTH_80P80MHZ);
 			}
 		}
 	}
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index af161cad2..1c21ca9ff 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -260,11 +260,9 @@ int hostapd_reload_config(struct hostapd_iface *iface)
 		hapd->iconf->ieee80211ac = oldconf->ieee80211ac;
 		hapd->iconf->ht_capab = oldconf->ht_capab;
 		hapd->iconf->vht_capab = oldconf->vht_capab;
-		hapd->iconf->vht_oper_chwidth = oldconf->vht_oper_chwidth;
-		hapd->iconf->vht_oper_centr_freq_seg0_idx =
-			oldconf->vht_oper_centr_freq_seg0_idx;
-		hapd->iconf->vht_oper_centr_freq_seg1_idx =
-			oldconf->vht_oper_centr_freq_seg1_idx;
+		hostapd_set_oper_chwidth(hapd->iconf, hostapd_get_oper_chwidth(oldconf));
+		hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, hostapd_get_oper_centr_freq_seg0_idx(oldconf));
+		hostapd_set_oper_centr_freq_seg1_idx(hapd->iconf, hostapd_get_oper_centr_freq_seg1_idx(oldconf));
 		hapd->conf = newconf->bss[j];
 		hostapd_reload_bss(hapd);
 	}
@@ -1864,9 +1862,9 @@ static int hostapd_setup_interface_complete_sync(struct hostapd_iface *iface,
 				     hapd->iconf->ieee80211n,
 				     hapd->iconf->ieee80211ac,
 				     hapd->iconf->secondary_channel,
-				     hapd->iconf->vht_oper_chwidth,
-				     hapd->iconf->vht_oper_centr_freq_seg0_idx,
-				     hapd->iconf->vht_oper_centr_freq_seg1_idx)) {
+				     hostapd_get_oper_chwidth(hapd->iconf),
+				     hostapd_get_oper_centr_freq_seg0_idx(hapd->iconf),
+				     hostapd_get_oper_centr_freq_seg1_idx(hapd->iconf))) {
 			wpa_printf(MSG_ERROR, "Could not set channel for "
 				   "kernel driver");
 			goto fail;
@@ -3191,6 +3189,7 @@ static int hostapd_change_config_freq(struct hostapd_data *hapd,
 				      struct hostapd_freq_params *old_params)
 {
 	int channel;
+	u8 seg0, seg1;
 
 	if (!params->channel) {
 		/* check if the new channel is supported by hw */
@@ -3208,9 +3207,9 @@ static int hostapd_change_config_freq(struct hostapd_data *hapd,
 				    conf->channel, conf->ieee80211n,
 				    conf->ieee80211ac,
 				    conf->secondary_channel,
-				    conf->vht_oper_chwidth,
-				    conf->vht_oper_centr_freq_seg0_idx,
-				    conf->vht_oper_centr_freq_seg1_idx,
+				    hostapd_get_oper_chwidth(conf),
+				    hostapd_get_oper_centr_freq_seg0_idx(conf),
+				    hostapd_get_oper_centr_freq_seg1_idx(conf),
 				    conf->vht_capab))
 		return -1;
 
@@ -3218,16 +3217,16 @@ static int hostapd_change_config_freq(struct hostapd_data *hapd,
 	case 0:
 	case 20:
 	case 40:
-		conf->vht_oper_chwidth = CHANWIDTH_USE_HT;
+		hostapd_set_oper_chwidth(conf, CHANWIDTH_USE_HT);
 		break;
 	case 80:
 		if (params->center_freq2)
-			conf->vht_oper_chwidth = CHANWIDTH_80P80MHZ;
+			hostapd_set_oper_chwidth(conf, CHANWIDTH_80P80MHZ);
 		else
-			conf->vht_oper_chwidth = CHANWIDTH_80MHZ;
+			hostapd_set_oper_chwidth(conf, CHANWIDTH_80MHZ);
 		break;
 	case 160:
-		conf->vht_oper_chwidth = CHANWIDTH_160MHZ;
+		hostapd_set_oper_chwidth(conf, CHANWIDTH_160MHZ);
 		break;
 	default:
 		return -1;
@@ -3237,9 +3236,11 @@ static int hostapd_change_config_freq(struct hostapd_data *hapd,
 	conf->ieee80211n = params->ht_enabled;
 	conf->secondary_channel = params->sec_channel_offset;
 	ieee80211_freq_to_chan(params->center_freq1,
-			       &conf->vht_oper_centr_freq_seg0_idx);
+			       &seg0);
 	ieee80211_freq_to_chan(params->center_freq2,
-			       &conf->vht_oper_centr_freq_seg1_idx);
+			       &seg1);
+	hostapd_set_oper_centr_freq_seg0_idx(conf, seg0);
+	hostapd_set_oper_centr_freq_seg1_idx(conf, seg1);
 
 	/* TODO: maybe call here hostapd_config_check here? */
 
@@ -3253,7 +3254,7 @@ static int hostapd_fill_csa_settings(struct hostapd_data *hapd,
 	struct hostapd_iface *iface = hapd->iface;
 	struct hostapd_freq_params old_freq;
 	int ret;
-	u8 chan, vht_bandwidth;
+	u8 chan, bandwidth;
 
 	os_memset(&old_freq, 0, sizeof(old_freq));
 	if (!iface || !iface->freq || hapd->csa_in_progress)
@@ -3262,22 +3263,22 @@ static int hostapd_fill_csa_settings(struct hostapd_data *hapd,
 	switch (settings->freq_params.bandwidth) {
 	case 80:
 		if (settings->freq_params.center_freq2)
-			vht_bandwidth = CHANWIDTH_80P80MHZ;
+			bandwidth = CHANWIDTH_80P80MHZ;
 		else
-			vht_bandwidth = CHANWIDTH_80MHZ;
+			bandwidth = CHANWIDTH_80MHZ;
 		break;
 	case 160:
-		vht_bandwidth = CHANWIDTH_160MHZ;
+		bandwidth = CHANWIDTH_160MHZ;
 		break;
 	default:
-		vht_bandwidth = CHANWIDTH_USE_HT;
+		bandwidth = CHANWIDTH_USE_HT;
 		break;
 	}
 
 	if (ieee80211_freq_to_channel_ext(
 		    settings->freq_params.freq,
 		    settings->freq_params.sec_channel_offset,
-		    vht_bandwidth,
+		    bandwidth,
 		    &hapd->iface->cs_oper_class,
 		    &chan) == NUM_HOSTAPD_MODES) {
 		wpa_printf(MSG_DEBUG,
@@ -3384,29 +3385,29 @@ void
 hostapd_switch_channel_fallback(struct hostapd_iface *iface,
 				const struct hostapd_freq_params *freq_params)
 {
-	int vht_seg0_idx = 0, vht_seg1_idx = 0, vht_bw = CHANWIDTH_USE_HT;
+	int seg0_idx = 0, seg1_idx = 0, bw = CHANWIDTH_USE_HT;
 
 	wpa_printf(MSG_DEBUG, "Restarting all CSA-related BSSes");
 
 	if (freq_params->center_freq1)
-		vht_seg0_idx = 36 + (freq_params->center_freq1 - 5180) / 5;
+		seg0_idx = 36 + (freq_params->center_freq1 - 5180) / 5;
 	if (freq_params->center_freq2)
-		vht_seg1_idx = 36 + (freq_params->center_freq2 - 5180) / 5;
+		seg1_idx = 36 + (freq_params->center_freq2 - 5180) / 5;
 
 	switch (freq_params->bandwidth) {
 	case 0:
 	case 20:
 	case 40:
-		vht_bw = CHANWIDTH_USE_HT;
+		bw = CHANWIDTH_USE_HT;
 		break;
 	case 80:
 		if (freq_params->center_freq2)
-			vht_bw = CHANWIDTH_80P80MHZ;
+			bw = CHANWIDTH_80P80MHZ;
 		else
-			vht_bw = CHANWIDTH_80MHZ;
+			bw = CHANWIDTH_80MHZ;
 		break;
 	case 160:
-		vht_bw = CHANWIDTH_160MHZ;
+		bw = CHANWIDTH_160MHZ;
 		break;
 	default:
 		wpa_printf(MSG_WARNING, "Unknown CSA bandwidth: %d",
@@ -3417,9 +3418,9 @@ hostapd_switch_channel_fallback(struct hostapd_iface *iface,
 	iface->freq = freq_params->freq;
 	iface->conf->channel = freq_params->channel;
 	iface->conf->secondary_channel = freq_params->sec_channel_offset;
-	iface->conf->vht_oper_centr_freq_seg0_idx = vht_seg0_idx;
-	iface->conf->vht_oper_centr_freq_seg1_idx = vht_seg1_idx;
-	iface->conf->vht_oper_chwidth = vht_bw;
+	hostapd_set_oper_centr_freq_seg0_idx(iface->conf, seg0_idx);
+	hostapd_set_oper_centr_freq_seg1_idx(iface->conf, seg1_idx);
+	hostapd_set_oper_chwidth(iface->conf, bw);
 	iface->conf->ieee80211n = freq_params->ht_enabled;
 	iface->conf->ieee80211ac = freq_params->vht_enabled;
 
diff --git a/src/ap/hw_features.c b/src/ap/hw_features.c
index e1734627c..015f29808 100644
--- a/src/ap/hw_features.c
+++ b/src/ap/hw_features.c
@@ -328,10 +328,9 @@ static void ieee80211n_check_scan(struct hostapd_iface *iface)
 
 	res = ieee80211n_allowed_ht40_channel_pair(iface);
 	if (!res) {
-		iface->conf->secondary_channel = 0;
-		iface->conf->vht_oper_centr_freq_seg0_idx = 0;
-		iface->conf->vht_oper_centr_freq_seg1_idx = 0;
-		iface->conf->vht_oper_chwidth = CHANWIDTH_USE_HT;
+		hostapd_set_oper_centr_freq_seg0_idx(iface->conf, 0);
+		hostapd_set_oper_centr_freq_seg1_idx(iface->conf, 0);
+		hostapd_set_oper_chwidth(iface->conf, CHANWIDTH_USE_HT);
 		res = 1;
 		wpa_printf(MSG_INFO, "Fallback to 20 MHz");
 	}
diff --git a/src/ap/neighbor_db.c b/src/ap/neighbor_db.c
index 37ec78322..82aa99e87 100644
--- a/src/ap/neighbor_db.c
+++ b/src/ap/neighbor_db.c
@@ -13,6 +13,7 @@
 #include "hostapd.h"
 #include "ieee802_11.h"
 #include "neighbor_db.h"
+#include "ap_drv_ops.h"
 
 
 struct hostapd_neighbor_entry *
@@ -141,17 +142,19 @@ void hostapd_free_neighbor_db(struct hostapd_data *hapd)
 static enum nr_chan_width hostapd_get_nr_chan_width(struct hostapd_data *hapd,
 						    int ht, int vht)
 {
+	u8 oper_chwidth = hostapd_get_oper_chwidth(hapd->iconf);
+
 	if (!ht && !vht)
 		return NR_CHAN_WIDTH_20;
 	if (!hapd->iconf->secondary_channel)
 		return NR_CHAN_WIDTH_20;
-	if (!vht || hapd->iconf->vht_oper_chwidth == CHANWIDTH_USE_HT)
+	if (!vht || oper_chwidth == CHANWIDTH_USE_HT)
 		return NR_CHAN_WIDTH_40;
-	if (hapd->iconf->vht_oper_chwidth == CHANWIDTH_80MHZ)
+	if (oper_chwidth == CHANWIDTH_80MHZ)
 		return NR_CHAN_WIDTH_80;
-	if (hapd->iconf->vht_oper_chwidth == CHANWIDTH_160MHZ)
+	if (oper_chwidth == CHANWIDTH_160MHZ)
 		return NR_CHAN_WIDTH_160;
-	if (hapd->iconf->vht_oper_chwidth == CHANWIDTH_80P80MHZ)
+	if (oper_chwidth == CHANWIDTH_80P80MHZ)
 		return NR_CHAN_WIDTH_80P80;
 	return NR_CHAN_WIDTH_20;
 }
@@ -205,16 +208,16 @@ void hostapd_neighbor_set_own_report(struct hostapd_data *hapd)
 
 	if (ieee80211_freq_to_channel_ext(hapd->iface->freq,
 					  hapd->iconf->secondary_channel,
-					  hapd->iconf->vht_oper_chwidth,
+					  hostapd_get_oper_chwidth(hapd->iconf),
 					  &op_class, &channel) ==
 	    NUM_HOSTAPD_MODES)
 		return;
 	width = hostapd_get_nr_chan_width(hapd, ht, vht);
 	if (vht) {
-		center_freq1_idx = hapd->iconf->vht_oper_centr_freq_seg0_idx;
+		center_freq1_idx = hostapd_get_oper_centr_freq_seg0_idx(hapd->iconf);
 		if (width == NR_CHAN_WIDTH_80P80)
 			center_freq2_idx =
-				hapd->iconf->vht_oper_centr_freq_seg1_idx;
+				hostapd_get_oper_centr_freq_seg1_idx(hapd->iconf);
 	} else if (ht) {
 		ieee80211_freq_to_chan(hapd->iface->freq +
 				       10 * hapd->iconf->secondary_channel,
diff --git a/src/common/hw_features_common.c b/src/common/hw_features_common.c
index 1df62962b..aa430f2e2 100644
--- a/src/common/hw_features_common.c
+++ b/src/common/hw_features_common.c
@@ -362,7 +362,7 @@ int hostapd_set_freq_params(struct hostapd_freq_params *data,
 			    enum hostapd_hw_mode mode,
 			    int freq, int channel, int ht_enabled,
 			    int vht_enabled, int sec_channel_offset,
-			    int vht_oper_chwidth, int center_segment0,
+			    int oper_chwidth, int center_segment0,
 			    int center_segment1, u32 vht_caps)
 {
 	os_memset(data, 0, sizeof(*data));
@@ -376,7 +376,7 @@ int hostapd_set_freq_params(struct hostapd_freq_params *data,
 	data->center_freq2 = 0;
 	data->bandwidth = sec_channel_offset ? 40 : 20;
 
-	if (data->vht_enabled) switch (vht_oper_chwidth) {
+	if (data->vht_enabled) switch (oper_chwidth) {
 	case CHANWIDTH_USE_HT:
 		if (center_segment1 ||
 		    (center_segment0 != 0 &&
@@ -397,9 +397,9 @@ int hostapd_set_freq_params(struct hostapd_freq_params *data,
 		/* fall through */
 	case CHANWIDTH_80MHZ:
 		data->bandwidth = 80;
-		if ((vht_oper_chwidth == CHANWIDTH_80MHZ &&
+		if ((oper_chwidth == CHANWIDTH_80MHZ &&
 		     center_segment1) ||
-		    (vht_oper_chwidth == CHANWIDTH_80P80MHZ &&
+		    (oper_chwidth == CHANWIDTH_80P80MHZ &&
 		     !center_segment1) ||
 		    !sec_channel_offset)
 			return -1;
diff --git a/src/common/hw_features_common.h b/src/common/hw_features_common.h
index eb1f1c57f..d3efe77f2 100644
--- a/src/common/hw_features_common.h
+++ b/src/common/hw_features_common.h
@@ -33,7 +33,7 @@ int hostapd_set_freq_params(struct hostapd_freq_params *data,
 			    enum hostapd_hw_mode mode,
 			    int freq, int channel, int ht_enabled,
 			    int vht_enabled, int sec_channel_offset,
-			    int vht_oper_chwidth, int center_segment0,
+			    int oper_chwidth, int center_segment0,
 			    int center_segment1, u32 vht_caps);
 void set_disable_ht40(struct ieee80211_ht_capabilities *htcaps,
 		      int disabled);
-- 
2.11.0


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