ttcn3: fix uncaught exception in SS

fix accessing child element in parsed Json without checking
its existence.

srsue/test/ttcn3/hdr/ttcn3_drb_interface.h

@@ -104,15 +104,20 @@ private:
          ++itr) {
       assert(itr->HasMember("PduSduList"));
       assert((*itr)["PduSduList"].IsObject());
-      assert((*itr)["PduSduList"].HasMember("PdcpSdu"));
-      assert((*itr)["PduSduList"]["PdcpSdu"].IsArray());
-      const Value& sdulist = (*itr)["PduSduList"]["PdcpSdu"];
-      for (Value::ConstValueIterator sdu_itr = sdulist.Begin(); sdu_itr != sdulist.End(); ++sdu_itr) {
-        assert(sdu_itr->IsString());
-        string              sdustr = sdu_itr->GetString();
-        asn1::dyn_octstring octstr(sdustr.size());
-        octstr.from_string(sdustr);
-        handle_sdu(document, lcid, octstr.data(), octstr.size(), ttcn3_helpers::get_follow_on_flag(document));
+      if ((*itr)["PduSduList"].HasMember("PdcpSdu")) {
+        assert((*itr)["PduSduList"]["PdcpSdu"].IsArray());
+        const Value& sdulist = (*itr)["PduSduList"]["PdcpSdu"];
+        for (Value::ConstValueIterator sdu_itr = sdulist.Begin(); sdu_itr != sdulist.End(); ++sdu_itr) {
+          assert(sdu_itr->IsString());
+          string              sdustr = sdu_itr->GetString();
+          asn1::dyn_octstring octstr(sdustr.size());
+          octstr.from_string(sdustr);
+          handle_sdu(document, lcid, octstr.data(), octstr.size(), ttcn3_helpers::get_follow_on_flag(document));
+        }
+      } else if ((*itr)["PduSduList"].HasMember("MacPdu")) {
+        log->warning("Not handling MacPdu type.");
+      } else {
+        log->warning("Not handling this PduSdu type.\n");
       }
     }
 

srsue/test/ttcn3/hdr/ttcn3_sys_interface.h

@@ -374,11 +374,13 @@ private:
         const Value& config = (*itr)["Config"];
         if (config.HasMember("AddOrReconfigure")) {
           const Value& aor  = config["AddOrReconfigure"];
-          uint32_t     lcid = aor["LogicalChannelId"].GetInt();
-          if (lcid > 0) {
-            pdcp_config_t pdcp_cfg = make_drb_pdcp_config_t(static_cast<uint8_t>(lcid), false);
-            syssim->add_drb(
-                ttcn3_helpers::get_timing_info(document), ttcn3_helpers::get_cell_name(document), lcid, pdcp_cfg);
+          if (aor.HasMember("LogicalChannelId")) {
+            uint32_t lcid = aor["LogicalChannelId"].GetInt();
+            if (lcid > 0) {
+              pdcp_config_t pdcp_cfg = make_drb_pdcp_config_t(static_cast<uint8_t>(lcid), false);
+              syssim->add_drb(
+                  ttcn3_helpers::get_timing_info(document), ttcn3_helpers::get_cell_name(document), lcid, pdcp_cfg);
+            }
           }
         } else if (config.HasMember("Release")) {
           uint32_t lcid = id["Drb"].GetInt() + 2;