Propagate and print beacon measurement start time

Signed-off-by: Filip Matusiak <filip.matusiak@iopsys.eu>

src/cntlr.h

@@ -76,7 +76,7 @@ struct bcn_meas_element {
 	uint8_t meas_report_type;
 	uint8_t op_class;
 	uint8_t channel;
-	uint8_t start_time[8];
+	uint8_t start_time[8]; /* measuring STA's TSF timer */
 	uint8_t duration[2];
 	uint8_t frame_info;
 	uint8_t rcpi;

src/cntlr_map.c

@@ -2115,6 +2115,7 @@ int handle_beacon_metrics_response(void *cntlr, struct cmdu_buff *cmdu)
 		b->requested = requested;
 		/* TODO: only most recent measurement marked as fresh */
 		b->stale = false;
+		memcpy(&b->meas_start_time, &elem->start_time, 8);
 
 		/* Move to the next measurement report */
 		ppos = ppos + elem->tag_length + 2;

src/cntlr_ubus.c

@@ -629,6 +629,7 @@ static int cntlr_status(struct ubus_context *ctx, struct ubus_object *obj,
 			blobmsg_add_string(&bb, "bssid", bssstr);
 			blobmsg_add_u32(&bb, "requested", bcn->requested);
 			blobmsg_add_u32(&bb, "stale", bcn->stale);
+			blobmsg_add_u64(&bb, "meas_start_time", bcn->meas_start_time);
 			blobmsg_close_table(&bb, ttttt);
 		}
 
@@ -2877,6 +2878,7 @@ int cntlr_bcn_metrics_resp(struct ubus_context *ctx, struct ubus_object *obj,
 			blobmsg_add_string(&bb, "bssid", bssstr);
 			blobmsg_add_u32(&bb, "requested", bcn->requested);
 			blobmsg_add_u32(&bb, "stale", bcn->stale);
+			blobmsg_add_u64(&bb, "meas_start_time", bcn->meas_start_time);
 			blobmsg_close_table(&bb, ttttt);
 		}
 

src/wifi_dataelements.h

@@ -120,7 +120,7 @@ struct wifi_sta_meas_report {
 
 	uint8_t opclass;
 	uint8_t channel;
-	uint64_t meas_start_time;
+	uint64_t meas_start_time; /* measuring STA's TSF timer */
 	uint16_t meas_duration;
 	uint8_t rfi; /* Reported Frame Information */
 	uint8_t rcpi;