Added function to get control pdu type to the PDCP base class. Shorten logger name in PDCP Status report test.

lib/include/srslte/upper/pdcp_entity_base.h

@@ -153,6 +153,7 @@ protected:
 
   // Common packing functions
   bool            is_control_pdu(const unique_byte_buffer_t& pdu);
+  pdcp_pdu_type_t get_control_pdu_type(const unique_byte_buffer_t& pdu);
   uint32_t        read_data_header(const unique_byte_buffer_t& pdu);
   void            discard_data_header(const unique_byte_buffer_t& pdu);
   void            write_data_header(const srslte::unique_byte_buffer_t& sdu, uint32_t count);

lib/src/upper/pdcp_entity_base.cc

@@ -219,6 +219,11 @@ bool pdcp_entity_base::is_control_pdu(const unique_byte_buffer_t& pdu)
   return ((*(payload) >> 7) & 0x01) == PDCP_DC_FIELD_CONTROL_PDU;
 }
 
+pdcp_pdu_type_t pdcp_entity_base::get_control_pdu_type(const unique_byte_buffer_t& pdu)
+{
+  return pdcp_pdu_type_t((pdu->msg[0] >> 4U) & 0x03U);
+}
+
 uint32_t pdcp_entity_base::read_data_header(const unique_byte_buffer_t& pdu)
 {
   // Check PDU is long enough to extract header

lib/src/upper/pdcp_entity_lte.cc

@@ -229,7 +229,7 @@ void pdcp_entity_lte::write_pdu(unique_byte_buffer_t pdu)
 // Handle control PDU
 void pdcp_entity_lte::handle_control_pdu(unique_byte_buffer_t pdu)
 {
-  switch ((pdu->msg[0] >> 4) & 0x03) {
+  switch (get_control_pdu_type(pdu)) {
     case PDCP_PDU_TYPE_STATUS_REPORT:
       handle_status_report_pdu(std::move(pdu));
       break;
@@ -393,7 +393,7 @@ void pdcp_entity_lte::handle_am_drb_pdu(srslte::unique_byte_buffer_t pdu)
 // Section 5.3.1 transmit operation
 bool pdcp_entity_lte::send_status_report()
 {
-  // Check wether RCL AM is being used.
+  // Check wether RLC AM is being used.
   if (rlc->rb_is_um(lcid)) {
     logger.error("Trying to send PDCP Status Report and RLC is not AM");
     return false;
@@ -407,10 +407,14 @@ bool pdcp_entity_lte::send_status_report()
     fms = undelivered_sdus_queue.begin()->first;
   }
 
-  logger.debug("PDCP Status report: FMS=%d", fms);
+  logger.debug("Status report: FMS=%d", fms);
 
   // Allocate Status Report PDU
   unique_byte_buffer_t pdu = make_byte_buffer();
+  if (pdu == nullptr) {
+    logger.error("Error allocating buffer for status report");
+    return false;
+  }
 
   // Set control bit and type of PDU
   pdu->msg[0] = ((uint8_t)PDCP_DC_FIELD_CONTROL_PDU << 7) | ((uint8_t)PDCP_PDU_TYPE_STATUS_REPORT << 4);

lib/test/upper/pdcp_lte_test_status_report.cc

@@ -171,7 +171,7 @@ int test_rx_status_report(const srslte::pdcp_lte_state_t& init_state, srslog::ba
 int run_all_tests()
 {
   // Setup log
-  srslog::basic_logger& logger = srslog::fetch_basic_logger("PDCP LTE Test Status Report", false);
+  srslog::basic_logger& logger = srslog::fetch_basic_logger("PDCP", false);
   logger.set_level(srslog::basic_levels::debug);
   logger.set_hex_dump_max_size(128);