Cumulative patch from commit 853b49a030c00fd6b2dde14e183ca2bf108eaa16

853b49a tests: Increase test_ap_wps_init connection timeout
28de68a P2P: Update peer operating channel from GO Negotiation Confirm
6701fdc P2P: Use the first pref_chan entry as operating channel preference
99d7c76 P2P: Add more debug info on operating channel selection
8d660e0 P2P: Add GO negotiation results into the P2P-GO-NEG-SUCCESS event
2c6f8cf Replace perror() with wpa_printf(strerror) in ctrl_iface calls
e743db4 IBSS RSN: Add IBSS-RSN-COMPLETED event message
4c55901 P2P: Add state info to global STATUS command
ae8c27f Add STATUS command to global control interface
42868f1 Add SAVE_CONFIG command to global control interface
1b9b31c Add SET command for global control interface
0185007 hostapd: Add survey dump support
245e026 hostapd: Split up channel checking into helpers
ba873bd wired: Wait for the link to become active before sending packets
d393de1 P2P: Validate the freq in p2p_group_add
973622c wpa_supplicant: Fix AP mode frequency initialization
d99ca89 P2P: Skip non-P2P interface in p2p_group_remove *
239abaf WPS: Set currently used RF band in RF Bands attribute
bf83eab nl80211: Start P2P Device when rfkill is unblocked
60b13c2 nl80211: Do not change type to station on P2P interfaces
e0591c3 wpa_supplicant: Reduce wait time for control interfaces
5046eb4 P2P: Allow separate interface GO to disconnect low-ack STAs
5bcd5c5 FT RRB: Clear pad field to avoid sending out uninitialized data
b378c41 nl80211: Fix deinit path to unregister nl_mgmt socket
a235aca Fix DETACH command debug prints to avoid use of freed memory
8d6e035 Make global UNIX socket non-blocking for ctrl_iface
86bd141 Change WEP network selection to reject WPA/WPA2 APs
2e145e9 WPS: Fix failure path to allow WSC_NACK and EAP-Failure to be exchanged
3351a38 WPS: Add control interface command for fetching latest status
e96872a WPS: Track peer MAC address from the last operations
ae23935 WPS: Track PBC status
61b6520 WPS: Track result of the latest WPS operation
50396e2 WPS: Add PBC mode activated/disabled events
961750c WPS: Share a common function for error strings
30158a0 nl80211: Update the assoc_freq during connect
83e7bb0 nl80211: Add more debug prints for DEL_STATION commands

Bug: 9056601

Change-Id: I8bc671eb13f4c2c388a4c15cf1ba968c24c9656a
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/ap/drv_callbacks.c b/src/ap/drv_callbacks.c
index fa4b5e4..e3ba224 100644
--- a/src/ap/drv_callbacks.c
+++ b/src/ap/drv_callbacks.c
@@ -715,6 +715,72 @@
 }
 
 
+static struct hostapd_channel_data * hostapd_get_mode_channel(
+	struct hostapd_iface *iface, unsigned int freq)
+{
+	int i;
+	struct hostapd_channel_data *chan;
+
+	for (i = 0; i < iface->current_mode->num_channels; i++) {
+		chan = &iface->current_mode->channels[i];
+		if (!chan)
+			return NULL;
+		if ((unsigned int) chan->freq == freq)
+			return chan;
+	}
+
+	return NULL;
+}
+
+
+static void hostapd_update_nf(struct hostapd_iface *iface,
+			      struct hostapd_channel_data *chan,
+			      struct freq_survey *survey)
+{
+	if (!iface->chans_surveyed) {
+		chan->min_nf = survey->nf;
+		iface->lowest_nf = survey->nf;
+	} else {
+		if (dl_list_empty(&chan->survey_list))
+			chan->min_nf = survey->nf;
+		else if (survey->nf < chan->min_nf)
+			chan->min_nf = survey->nf;
+		if (survey->nf < iface->lowest_nf)
+			iface->lowest_nf = survey->nf;
+	}
+}
+
+
+static void hostapd_event_get_survey(struct hostapd_data *hapd,
+				     struct survey_results *survey_results)
+{
+	struct hostapd_iface *iface = hapd->iface;
+	struct freq_survey *survey, *tmp;
+	struct hostapd_channel_data *chan;
+
+	if (dl_list_empty(&survey_results->survey_list)) {
+		wpa_printf(MSG_DEBUG, "No survey data received");
+		return;
+	}
+
+	dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
+			      struct freq_survey, list) {
+		chan = hostapd_get_mode_channel(iface, survey->freq);
+		if (!chan)
+			continue;
+		if (chan->flag & HOSTAPD_CHAN_DISABLED)
+			continue;
+
+		dl_list_del(&survey->list);
+		dl_list_add_tail(&chan->survey_list, &survey->list);
+
+		hostapd_update_nf(iface, chan, survey);
+
+		iface->chans_surveyed++;
+	}
+}
+
+
 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
 			  union wpa_event_data *data)
 {
@@ -856,6 +922,9 @@
 			hapd, data->connect_failed_reason.addr,
 			data->connect_failed_reason.code);
 		break;
+	case EVENT_SURVEY:
+		hostapd_event_get_survey(hapd, &data->survey_results);
+		break;
 	default:
 		wpa_printf(MSG_DEBUG, "Unknown event %d", event);
 		break;