nr-ip noS1 uplink: Uplink IP traffic successfully received at the IP TUN...

nr-ip noS1 uplink: Uplink IP traffic successfully received at the IP TUN interface of the gNB now. Logs cleanup.

executables/nr-softmodem.c

@@ -910,6 +910,7 @@ init_opt();
 
 
 #ifdef PDCP_USE_NETLINK
+if(!IS_SOFTMODEM_NOS1)
   netlink_init();
 #if defined(PDCP_USE_NETLINK_QUEUES)
   pdcp_netlink_init();

executables/nr-ue.c

@@ -420,7 +420,6 @@ void processSlotRX( PHY_VARS_NR_UE *UE, UE_nr_rxtx_proc_t *proc) {
                                    0x1234, proc->frame_rx,
                                    proc->nr_tti_rx, 0);
 	  pdcp_run(&ctxt);
-          pdcp_fifo_flush_sdus(&ctxt);
   }
   }
 

openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c

@@ -593,16 +593,16 @@ uint32_t nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB,
                                          p_procTime);
 
       if (check_crc((uint8_t*)llrProcBuf,length_dec,harq_process->F,crc_type)) {
-  //#ifdef PRINT_CRC_CHECK
+  #ifdef PRINT_CRC_CHECK
         //if (prnt_crc_cnt % 10 == 0)
           LOG_I(PHY, "Segment %d CRC OK\n",r);
-  //#endif
+  #endif
         ret = no_iteration_ldpc;
       } else {
-  //#ifdef PRINT_CRC_CHECK
+  #ifdef PRINT_CRC_CHECK
         //if (prnt_crc_cnt%10 == 0)
           LOG_I(PHY, "CRC NOK\n");
-  //#endif
+  #endif
         ret = ulsch->max_ldpc_iterations + 1;
       }
 
@@ -719,12 +719,14 @@ uint32_t nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB,
 
   }
 
-  LOG_I(PHY, "output encoder: \n");
+#ifdef DEBUG_ULSCH_DECODING
+  LOG_I(PHY, "Decoder output (payload): \n");
   for (i = 0; i < harq_process->TBS / 8; i++) {
 	  //harq_process_ul_ue->a[i] = (unsigned char) rand();
 	  //printf("a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
 	  printf("0x%02x",harq_process->b[i]);
   }
+#endif
 
   ulsch->last_iteration_cnt = ret;
 

openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c

@@ -45,6 +45,7 @@
 
 //#define DEBUG_SCFDMA
 //#define DEBUG_PUSCH_MAPPING
+#define DEBUG_MAC_PDU
 
 //extern int32_t uplink_counter;
 
@@ -160,13 +161,25 @@ uint8_t nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
     		if(data_existing){
     			//harq_process_ul_ue->a = (unsigned char*)calloc(harq_process_ul_ue->TBS/8, sizeof(unsigned char));
     			memcpy(harq_process_ul_ue->a, ulsch_input_buffer, harq_process_ul_ue->TBS/8);
-    			LOG_I(PHY, "input encoder: \n");
+
+    			#ifdef DEBUG_MAC_PDU
+    				LOG_I(PHY, "Printing MAC PDU to be encoded: \n");
+    				for (i = 0; i < harq_process_ul_ue->TBS / 8; i++) {
+    					printf("0x%02x",harq_process_ul_ue->a[i]);
+    				}
+    				printf("\n");
+				#endif
+    		}
+    		else{
+    			//Use different rnti for the random (non-IP traffic) in noS1 mode, in order to use it as a filter
+    			//to block this traffic from being forwarded to the MAC layer of the gNB
+    			ulsch_ue->rnti        = 0x1111;
+    			LOG_E(PHY, "Random data to be tranmsitted: \n");
     			for (i = 0; i < harq_process_ul_ue->TBS / 8; i++) {
-    				//harq_process_ul_ue->a[i] = (unsigned char) rand();
-    				//printf("a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
-    				//printf("0x%02x",harq_process_ul_ue->a[i]);
-    				printf("0x%02x",harq_process_ul_ue->b[i]);
+    				harq_process_ul_ue->a[i] = (unsigned char) rand();
+    				//printf(" input encoder a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
     				}
+    			data_existing = 1;
     		}
     	}
         //else if(uplink_counter == 0){ //if(!IS_SOFTMODEM_NOS1){

openair1/SCHED_NR/phy_procedures_nr_gNB.c

@@ -38,6 +38,7 @@
 #include "PHY/INIT/phy_init.h"
 #include "PHY/MODULATION/nr_modulation.h"
 #include "T.h"
+#include "executables/nr-softmodem.h"
 
 #include "assertions.h"
 #include "msc.h"
@@ -261,11 +262,13 @@ void nr_ulsch_procedures(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx, int UE_id
   if (ret > gNB->ulsch[UE_id][0]->max_ldpc_iterations)
     LOG_I(PHY, "ULSCH in error\n");
   //gNB->ulsch[UE_id+1][0]->harq_processes[harq_pid]->b
-  else if(gNB->ulsch[UE_id+1][0]->harq_processes[harq_pid]->b!=NULL){
-    LOG_I(PHY, "ULSCH received ok, number of iterations: %d \n", ret);
+  else if(gNB->ulsch[UE_id][0]->harq_processes[harq_pid]->b!=NULL){
+	  LOG_D(PHY, "ULSCH received ok \n");
+	  if(IS_SOFTMODEM_NOS1 && gNB->ulsch[UE_id][0]->rnti == 0x1234){
 		  nr_fill_crc_indication (gNB, UE_id, frame_rx, slot_rx, 0);
 		  nr_fill_rx_indication(gNB, frame_rx, slot_rx, UE_id, harq_pid);
 	  }
+  }
 
 }
 
@@ -295,7 +298,6 @@ void nr_fill_rx_indication(PHY_VARS_gNB *gNB, int frame, int slot_rx, int UE_id,
  pdu->rx_ue_information.tl.tag          = NFAPI_RX_UE_INFORMATION_TAG;
  pdu->rx_ue_information.rnti            = gNB->ulsch[UE_id][0]->rnti;
  pdu->rx_indication_rel8.tl.tag         = NFAPI_RX_INDICATION_REL8_TAG;
- pdu->rx_indication_rel8.length         = gNB->ulsch[UE_id][0]->harq_processes[harq_pid]->TBS>>3;
  pdu->rx_indication_rel8.offset         = 1;   // DJP - I dont understand - but broken unless 1 ????  0;  // filled in at the end of the UL_INFO formation
  pdu->data                              = harq_process->b;//gNB->ulsch[UE_id+1][0]->harq_processes[harq_pid]->b;
   // estimate timing advance for MAC

openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c

@@ -3028,6 +3028,16 @@ nr_ue_get_sdu(module_id_t module_idP, int CC_id, frame_t frameP,
         (char) (taus() & 0xff);
     }
   }
+#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
+  LOG_D(MAC, "Printing UL MAC payload without the header UE side: \n");
+  for (int i = payload_offset; i < sdu_length_total ; i++) {
+	  //harq_process_ul_ue->a[i] = (unsigned char) rand();
+	  //printf("a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
+	  printf("%02x ",(unsigned char)ulsch_buffer[i]);
+  }
+  printf("\n");
+#endif
+
   return 1;
 
 }

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c

@@ -634,7 +634,7 @@ nr_rx_sdu(const module_id_t enb_mod_idP,
   } // end for loop on control element
 
   for (int i = 0; i < num_sdu; i++) {
-    LOG_I(MAC, "SDU Number %d MAC Subheader SDU_LCID %d, length %d\n",
+    LOG_D(MAC, "SDU Number %d MAC Subheader SDU_LCID %d, length %d\n",
           i,
           rx_lcids[i],
           rx_lengths[i]);
@@ -701,9 +701,16 @@ nr_rx_sdu(const module_id_t enb_mod_idP,
 
 
             if ((rx_lengths[i] < SCH_PAYLOAD_SIZE_MAX) && (rx_lengths[i] > 0)) {  // MAX SIZE OF transport block
-              mac_rlc_data_ind(enb_mod_idP, current_rnti, enb_mod_idP, frameP, ENB_FLAG_YES, MBMS_FLAG_NO, rx_lcids[i], (char *) payload_ptr, rx_lengths[i], 1, NULL);
+#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
+            	LOG_I(MAC, "Printing UL MAC payload after removing the header: \n");
+            	    for (int j = 0; j < rx_lengths[i] ; j++) {
+            	  	  printf("%02x ",(unsigned char) *(payload_ptr+j));
+            	    }
+            	    pritnf("\n");
+#endif
+              mac_rlc_data_ind(enb_mod_idP, current_rnti, enb_mod_idP, frameP, ENB_FLAG_YES, MBMS_FLAG_NO, rx_lcids[i], (char *) payload_ptr+1, rx_lengths[i], 1, NULL);
             } else {  /* rx_length[i] Max size */
-              UE_list->eNB_UE_stats[CC_idP][UE_id].num_errors_rx += 1;
+              //UE_list->eNB_UE_stats[CC_idP][UE_id].num_errors_rx += 1;
               LOG_E(MAC, "[eNB %d] CC_id %d Frame %d : Max size of transport block reached LCID %d from UE %d ",
                     enb_mod_idP,
                     CC_idP,

openair2/LAYER2/PDCP_v10.1.0/pdcp.c

@@ -2171,7 +2171,6 @@ uint64_t pdcp_module_init( uint64_t pdcp_optmask ) {
     if(UE_NAS_USE_TUN) {
       int num_if = (NFAPI_MODE == NFAPI_UE_STUB_PNF || IS_SOFTMODEM_SIML1 )?MAX_NUMBER_NETIF:1;
       netlink_init_tun("ue",num_if);
-      //Add --nr-ip-over-lte option check for next line
       if (IS_SOFTMODEM_NOS1)
     	  nas_config(1, 1, 2, "ue");
       LOG_I(PDCP, "UE pdcp will use tun interface\n");

openair2/LAYER2/PDCP_v10.1.0/pdcp_fifo.c

@@ -124,18 +124,34 @@ int pdcp_fifo_flush_sdus(const protocol_ctxt_t *const  ctxt_pP) {
 
       ret = sendto(pdcp_pc5_sockfd, &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),
                    sizeof(sidelink_pc5s_element), 0, (struct sockaddr *)&prose_pdcp_addr,sizeof(prose_pdcp_addr) );
+
     } else if (UE_NAS_USE_TUN) {
+    	#if defined(ENABLE_PDCP_PAYLOAD_DEBUG)
+    		LOG_I(PHY, "PDCP output to be sent to TUN interface: \n");
+    		for (int i = sizeof(pdcp_data_ind_header_t); i < sizeToWrite; i++) {
+    			printf("%02x ",(unsigned char)sdu_p->data[i]);
+    		}
+    		printf("\n");
+    	#endif
     	ret = write(nas_sock_fd[ctxt_pP->module_id], &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),sizeToWrite );
+
     } else if (ENB_NAS_USE_TUN) {
-      ret = write(nas_sock_fd[0], &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),sizeToWrite );
-      LOG_I(PDCP, "ENB_NAS_USE_TUN is enabled, ret: %d, ctxt_pP->module_id:%d, sizeToWrite:%d, header size:%d \n", ctxt_pP->module_id, ret, sizeToWrite, sizeof (pdcp_data_ind_header_t));
+		#if defined(ENABLE_PDCP_PAYLOAD_DEBUG)
+    		LOG_I(PHY, "PDCP output to be sent to TUN interface: \n");
+    		for (int i = sizeof(pdcp_data_ind_header_t); i < sizeToWrite; i++) {
+    			printf("%02x ",(unsigned char)sdu_p->data[i]);
+    		}
+    		printf("\n");
+		#endif
+    	ret = write(nas_sock_fd[0], &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]), sizeToWrite);
+
     } else if (PDCP_USE_NETLINK) {
       memcpy(NLMSG_DATA(nas_nlh_tx), (uint8_t *) sdu_p->data,  sizeToWrite);
       nas_nlh_tx->nlmsg_len = sizeToWrite;
       ret = sendmsg(nas_sock_fd[0],&nas_msg_tx,0);
     }  //  PDCP_USE_NETLINK
 
-    AssertFatal(ret >= 0,"[PDCP_FIFOS] pdcp_fifo_flush_sdus (errno: %d %s)\n", errno, strerror(errno));
+    AssertFatal(ret >= 0,"[PDCP_FIFOS] pdcp_fifo_flush_sdus (errno: %d %s), nas_sock_fd[0]: %d\n", errno, strerror(errno), nas_sock_fd[0]);
     
     #if defined(ENABLE_PDCP_PAYLOAD_DEBUG)
     LOG_I(PDCP, "Printing first bytes of PDCP SDU before removing it from the list: \n");
@@ -187,6 +203,15 @@ int pdcp_fifo_read_input_sdus_fromtun (const protocol_ctxt_t *const  ctxt_pP) {
       LOG_D(PDCP, "[FRAME %5u][UE][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %04x][RB %ld]\n",
             ctxt.frame, ctxt.instance, rab_id, len, ctxt.module_id,
             ctxt.rnti, rab_id);
+
+#if defined  ENABLE_PDCP_PAYLOAD_DEBUG
+      LOG_I(PHY, "TUN interface output received from PDCP: \n");
+      for (int i = 0; i < 128; i++) {
+    	  printf("%02x ",(unsigned char)nl_rx_buf[i]);
+      }
+      printf("\n");
+#endif
+
       pdcp_data_req(&ctxt, SRB_FLAG_NO, rab_id, RLC_MUI_UNDEFINED,
                     RLC_SDU_CONFIRM_NO, len, (unsigned char *)nl_rx_buf,
                     PDCP_TRANSMISSION_MODE_DATA

openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c

@@ -81,7 +81,7 @@ void mac_rlc_data_ind     (
   } else {
     LOG_E(RLC, "%s:%d:%s: fatal: no RB found (channel ID %d)\n",
           __FILE__, __LINE__, __FUNCTION__, channel_idP);
-    //exit(1);
+    exit(1);
   }
 
   nr_rlc_manager_unlock(nr_rlc_ue_manager);

openair2/NR_PHY_INTERFACE/NR_IF_Module.c

@@ -192,7 +192,7 @@ void handle_nr_ulsch(NR_UL_IND_t *UL_info) {
                      UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.timing_advance,
                      UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.ul_cqi);
             } else {
-              LOG_I(MAC,"Frame %d, Slot %d Calling rx_sdu (CRC ok) \n",UL_info->frame,UL_info->slot);
+              LOG_D(MAC,"Frame %d, Slot %d Calling rx_sdu (CRC ok) \n",UL_info->frame,UL_info->slot);
               nr_rx_sdu(UL_info->module_id,
                      UL_info->CC_id,
                      NFAPI_SFNSF2SFN(UL_info->rx_ind.sfn_sf), //UL_info->frame,