Added NGAP Metrics

srsenb/hdr/stack/ngap/ngap.h

@@ -12,6 +12,7 @@
 #ifndef SRSENB_NGAP_H
 #define SRSENB_NGAP_H
 
+#include "ngap_metrics.h"
 #include "srsenb/hdr/common/common_enb.h"
 #include "srsran/adt/circular_map.h"
 #include "srsran/adt/optional.h"
@@ -66,6 +67,7 @@ public:
   // Stack interface
   bool
   handle_amf_rx_msg(srsran::unique_byte_buffer_t pdu, const sockaddr_in& from, const sctp_sndrcvinfo& sri, int flags);
+  void get_metrics(ngap_metrics_t& m);
 
 private:
   static const int AMF_PORT        = 38412;

srsenb/hdr/stack/ngap/ngap_metrics.h

@@ -0,0 +1,30 @@
+/**
+ *
+ * \section COPYRIGHT
+ *
+ * Copyright 2013-2021 Software Radio Systems Limited
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the distribution.
+ *
+ */
+
+#ifndef SRSENB_NGAP_METRICS_H
+#define SRSENB_NGAP_METRICS_H
+
+namespace srsenb {
+
+typedef enum {
+  ngap_attaching = 0, // Attempting to create NG connection
+  ngap_connected,     // NG connected
+  ngap_error          // Failure
+} ngap_status_t;
+
+struct ngap_metrics_t {
+  ngap_status_t status;
+};
+
+} // namespace srsenb
+
+#endif // SRSENB_NGAP_METRICS_H

srsenb/src/stack/ngap/ngap.cc

@@ -143,6 +143,19 @@ void ngap::stop()
   amf_socket.close();
 }
 
+void ngap::get_metrics(ngap_metrics_t& m)
+{
+  if (!running) {
+    m.status = ngap_error;
+    return;
+  }
+  if (amf_connected) {
+    m.status = ngap_connected;
+  } else {
+    m.status = ngap_attaching;
+  }
+}
+
 bool ngap::is_amf_connected()
 {
   return amf_connected;