Make STA opmode change event available to upper layers

Add an event callback for EVENT_STATION_OPMODE_CHANGED to allow
user/application to get the notification whenever there is a change in a
station's HT/VHT op mode.

The new events:
STA-OPMODE-MAX-BW-CHANGED <addr> <20(no-HT)|20|40|80|80+80|160>
STA-OPMODE-SMPS-MODE-CHANGED <addr> <automatic|off|dynamic|static>
STA-OPMODE-N_SS-CHANGED <addr> <N_SS>

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>

diff --git a/src/ap/drv_callbacks.c b/src/ap/drv_callbacks.c
index e4a458107e847a4ad2f216fd82918ba19d2818a0..f0d6a4ccb8d77a6c698c1d14573f29f04cec05e8 100644 (file)
--- a/src/ap/drv_callbacks.c
+++ b/src/ap/drv_callbacks.c
@@ -653,6 +653,73 @@ void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr)
 }
 
 
+void hostapd_event_sta_opmode_changed(struct hostapd_data *hapd, const u8 *addr,
+                                     enum smps_mode smps_mode,
+                                     enum chan_width chan_width, u8 rx_nss)
+{
+       struct sta_info *sta = ap_get_sta(hapd, addr);
+       const char *txt;
+
+       if (!sta)
+               return;
+
+       switch (smps_mode) {
+       case SMPS_AUTOMATIC:
+               txt = "automatic";
+               break;
+       case SMPS_OFF:
+               txt = "off";
+               break;
+       case SMPS_DYNAMIC:
+               txt = "dynamic";
+               break;
+       case SMPS_STATIC:
+               txt = "static";
+               break;
+       default:
+               txt = NULL;
+               break;
+       }
+       if (txt) {
+               wpa_msg(hapd->msg_ctx, MSG_INFO, STA_OPMODE_SMPS_MODE_CHANGED
+                       MACSTR " %s", MAC2STR(addr), txt);
+       }
+
+       switch (chan_width) {
+       case CHAN_WIDTH_20_NOHT:
+               txt = "20(no-HT)";
+               break;
+       case CHAN_WIDTH_20:
+               txt = "20";
+               break;
+       case CHAN_WIDTH_40:
+               txt = "40";
+               break;
+       case CHAN_WIDTH_80:
+               txt = "80";
+               break;
+       case CHAN_WIDTH_80P80:
+               txt = "80+80";
+               break;
+       case CHAN_WIDTH_160:
+               txt = "160";
+               break;
+       default:
+               txt = NULL;
+               break;
+       }
+       if (txt) {
+               wpa_msg(hapd->msg_ctx, MSG_INFO, STA_OPMODE_MAX_BW_CHANGED
+                       MACSTR " %s", MAC2STR(addr), txt);
+       }
+
+       if (rx_nss != 0xff) {
+               wpa_msg(hapd->msg_ctx, MSG_INFO, STA_OPMODE_N_SS_CHANGED
+                       MACSTR " %d", MAC2STR(addr), rx_nss);
+       }
+}
+
+
 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
                             int offset, int width, int cf1, int cf2)
 {
@@ -1614,6 +1681,12 @@ void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
                                             &data->acs_selected_channels);
                break;
 #endif /* CONFIG_ACS */
+       case EVENT_STATION_OPMODE_CHANGED:
+               hostapd_event_sta_opmode_changed(hapd, data->sta_opmode.addr,
+                                                data->sta_opmode.smps_mode,
+                                                data->sta_opmode.chan_width,
+                                                data->sta_opmode.rx_nss);
+               break;
        default:
                wpa_printf(MSG_DEBUG, "Unknown event %d", event);
                break;

diff --git a/src/ap/hostapd.h b/src/ap/hostapd.h
index 53d0f9a9aa01df1df008049dbed23bed6bdb0690..7743acf257fd4c1b3fce30ee36f0c5c5dbb8b223 100644 (file)
--- a/src/ap/hostapd.h
+++ b/src/ap/hostapd.h
@@ -608,6 +608,9 @@ hostapd_get_eap_user(struct hostapd_data *hapd, const u8 *identity,
 
 struct hostapd_data * hostapd_get_iface(struct hapd_interfaces *interfaces,
                                        const char *ifname);
+void hostapd_event_sta_opmode_changed(struct hostapd_data *hapd, const u8 *addr,
+                                     enum smps_mode smps_mode,
+                                     enum chan_width chan_width, u8 rx_nss);
 
 #ifdef CONFIG_FST
 void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd,

diff --git a/src/common/wpa_ctrl.h b/src/common/wpa_ctrl.h
index c369ebb24b3e64cf43a14ed83b783b3644820a4f..df4564b782179f8498d7d082e185665172712027 100644 (file)
--- a/src/common/wpa_ctrl.h
+++ b/src/common/wpa_ctrl.h
@@ -345,6 +345,11 @@ extern "C" {
  * parameters: sa=<STA MAC address> signal=<signal> */
 #define RX_PROBE_REQUEST "RX-PROBE-REQUEST "
 
+/* Event to indicate station's HT/VHT operation mode change information */
+#define STA_OPMODE_MAX_BW_CHANGED "STA-OPMODE-MAX-BW-CHANGED "
+#define STA_OPMODE_SMPS_MODE_CHANGED "STA-OPMODE-SMPS-MODE-CHANGED "
+#define STA_OPMODE_N_SS_CHANGED "STA-OPMODE-N_SS-CHANGED "
+
 /* BSS command information masks */
 
 #define WPA_BSS_MASK_ALL               0xFFFDFFFF

diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c
index 398f4f2f34feeadec905a32572cd324674c394fa..5a61e1714edc5219e8af0e4225ac5e097ea60882 100644 (file)
--- a/wpa_supplicant/events.c
+++ b/wpa_supplicant/events.c
@@ -4609,6 +4609,18 @@ void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
        case EVENT_PORT_AUTHORIZED:
                wpa_supplicant_event_port_authorized(wpa_s);
                break;
+       case EVENT_STATION_OPMODE_CHANGED:
+#ifdef CONFIG_AP
+               if (!wpa_s->ap_iface || !data)
+                       break;
+
+               hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
+                                                data->sta_opmode.addr,
+                                                data->sta_opmode.smps_mode,
+                                                data->sta_opmode.chan_width,
+                                                data->sta_opmode.rx_nss);
+#endif /* CONFIG_AP */
+               break;
        default:
                wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
                break;