Merge remote-tracking branch 'origin/episys/mel/merge_develop_cfra_working'...

Merge remote-tracking branch 'origin/episys/mel/merge_develop_cfra_working' into episys/mel/merge_develop_cfra_working_for_multiUE

Resolved merge conflict.

executables/nr-uesoftmodem.c

@@ -397,17 +397,17 @@ void init_pdcp(int ue_id) {
     pdcp_initmask = pdcp_initmask | UE_NAS_USE_TUN_BIT;
   }*/
 
-  if (IS_SOFTMODEM_NOKRNMOD)
+  if (IS_SOFTMODEM_NOKRNMOD) {
     pdcp_initmask = pdcp_initmask | UE_NAS_USE_TUN_BIT;
-  if(!IS_SOFTMODEM_NOS1) {
+  }
   if (rlc_module_init(0) != 0) {
     LOG_I(RLC, "Problem at RLC initiation \n");
   }
-  }
+  if(!IS_SOFTMODEM_NOS1) {
     pdcp_layer_init();
     nr_pdcp_module_init(pdcp_initmask, ue_id);
-  //nr_DRB_preconfiguration();
-  //pdcp_module_init(pdcp_initmask, 0);
+  }
+
   pdcp_set_rlc_data_req_func((send_rlc_data_req_func_t) rlc_data_req);
   pdcp_set_pdcp_data_ind_func((pdcp_data_ind_func_t) pdcp_data_ind);
 }

openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c

@@ -1041,7 +1041,7 @@ NR_UE_L2_STATE_t nr_ue_scheduler(nr_downlink_indication_t *dl_info, nr_uplink_in
             mac->UL_ndi[ulcfg_pdu->pusch_config_pdu.pusch_data.harq_process_id] = ulcfg_pdu->pusch_config_pdu.pusch_data.new_data_indicator;
 	          mac->first_ul_tx[ulcfg_pdu->pusch_config_pdu.pusch_data.harq_process_id] = 0;
           } else {
-            if (!SOFTMODEM_NOS1_BIT && (mac->UL_ndi[ulcfg_pdu->pusch_config_pdu.pusch_data.harq_process_id] !=
+            if (!IS_SOFTMODEM_NOS1 && (mac->UL_ndi[ulcfg_pdu->pusch_config_pdu.pusch_data.harq_process_id] !=
                     ulcfg_pdu->pusch_config_pdu.pusch_data.new_data_indicator ||
                     mac->first_ul_tx[ulcfg_pdu->pusch_config_pdu.pusch_data.harq_process_id]==1)){
 

openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c

@@ -450,14 +450,21 @@ static void deliver_sdu_drb(void *_ue, nr_pdcp_entity_t *entity,
   uint8_t     *gtpu_buffer_p;
   int rb_id;
   int i;
-  LOG_I(PDCP, "Melissa Elkadi we got here %s\n", __FUNCTION__);
 
-  if(IS_SOFTMODEM_NOS1 || UE_NAS_USE_TUN){
+  if (IS_SOFTMODEM_NOS1 || UE_NAS_USE_TUN) {
     LOG_D(PDCP, "IP packet received, to be sent to TUN interface");
-    len = write(nas_sock_fd[0], buf, size);
-    LOG_D(PDCP, "Writing %d bytes to tunnel interface\n", len);
-    if (len != size) {
-      LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
+
+    /* We are removing the instance ID from the buffer. TUN interfaces
+       care about the actual data we are sending. If we do not remove
+       the instance ID from the buffer, it will start with 00, and the
+       write will fail with errno = 22 (EINVAL) */
+    char *data_buffer = buf + 1;
+    int size_to_write = size - 1;
+
+    len = write(nas_sock_fd[0], data_buffer, size_to_write);
+    LOG_D(PDCP, "len = %d bytes to tunnel interface %d\n", len, nas_sock_fd[0]);
+    if (len != size_to_write) {
+      LOG_E(PDCP, "%s:%d:%s: fatal error %d: %s\n", __FILE__, __LINE__, __FUNCTION__, errno, strerror(errno));
     }
   }
   else{

openair2/RRC/LTE/rrc_UE.c

@@ -4627,8 +4627,6 @@ void ue_measurement_report_triggering(protocol_ctxt_t *const ctxt_pP, const uint
             if (is_state_connected && is_t304_inactive && have_meas_flag) {
               LOG_I(RRC,"[UE %d] Frame %d: Triggering generation of Meas Report for NR_r15. count = %d\n",
                     ctxt_pP->module_id, ctxt_pP->frame, ue->subframeCount);
-              if (!SOFTMODEM_NOS1_BIT)
-                usleep(200000); //Melissa Elkadi come back for EPC
               if (ue->measReportList[i][j] == NULL) {
                 ue->measReportList[i][j] = malloc(sizeof(MEAS_REPORT_LIST));
               }