Send DRB PDUs as JSON to TTCN3

srsue/test/ttcn3/hdr/ttcn3_drb_interface.h

@@ -27,6 +27,7 @@
 #include "srslte/mac/pdu.h"
 #include "ttcn3_interfaces.h"
 #include "ttcn3_port_handler.h"
+#include <srslte/asn1/asn1_utils.h>
 #include <srslte/interfaces/ue_interfaces.h>
 
 using namespace srslte;
@@ -49,11 +50,12 @@ public:
     return port_listen();
   }
 
-  void tx(unique_byte_buffer_t pdu)
+  void tx(std::string out)
   {
     if (initialized) {
-      log->info_hex(pdu->msg, pdu->N_bytes, "Sending %d B to Titan\n", pdu->N_bytes);
-      send(pdu->msg, pdu->N_bytes);
+      log->info_hex(
+          reinterpret_cast<const uint8_t*>(out.c_str()), out.length(), "Sending %ld B to Titan\n", out.length());
+      send(reinterpret_cast<const uint8_t*>(out.c_str()), out.length());
     } else {
       log->error("Trying to transmit but port not connected.\n");
     }

srsue/test/ttcn3/src/ttcn3_syssim.cc

@@ -1023,27 +1023,29 @@ void ttcn3_syssim::write_pdu(uint32_t lcid, unique_byte_buffer_t pdu)
                 cells[pcell_idx]->cell.id,
                 pdu->N_bytes);
 
-  // check cell ID
-  if (cells[pcell_idx]->cell.id > 256) {
-    log->error("Cell ID too large to fit in single byte.\n");
-    return;
-  }
+  // push content to Titan
+  if (lcid <= 2) {
+    // check cell ID
+    if (cells[pcell_idx]->cell.id > 256) {
+      log->error("Cell ID too large to fit in single byte.\n");
+      return;
+    }
 
-  // We don't handle RRC, prepend LCID
-  pdu->msg--;
-  *pdu->msg = lcid;
-  pdu->N_bytes++;
+    // We don't handle RRC, prepend LCID
+    pdu->msg--;
+    *pdu->msg = lcid;
+    pdu->N_bytes++;
 
-  // prepend pcell PCID
-  pdu->msg--;
-  *pdu->msg = static_cast<uint8_t>(cells[pcell_idx]->cell.id);
-  pdu->N_bytes++;
+    // prepend pcell PCID
+    pdu->msg--;
+    *pdu->msg = static_cast<uint8_t>(cells[pcell_idx]->cell.id);
+    pdu->N_bytes++;
 
-  // push content to Titan
-  if (lcid <= 2) {
     srb.tx(std::move(pdu));
   } else {
-    drb.tx(std::move(pdu));
+    std::string out = ttcn3_helpers::get_drb_common_ind_for_pdu(lcid, cells[pcell_idx]->name, std::move(pdu));
+    log->error("DRB send:\n%s", out.c_str());
+    drb.tx(out);
   }
 }