Add Downlink(NAS Identity Request)/Uplink(NAS Identity Response)

openair2/RRC/NR/nr_rrc_defs.h

@@ -424,6 +424,8 @@ typedef struct gNB_RRC_INST_s {
   int                                                 Nb_ue;
   hash_table_t                                        *initial_id2_s1ap_ids; // key is    content is rrc_ue_s1ap_ids_t
   hash_table_t                                        *s1ap_id2_s1ap_ids   ; // key is    content is rrc_ue_s1ap_ids_t
+  hash_table_t                                        *initial_id2_ngap_ids;
+  hash_table_t                                        *ngap_id2_ngap_ids   ;
 
   // other PLMN parameters
   /// Mobile country code

openair2/RRC/NR/rrc_gNB.c

@@ -293,6 +293,8 @@ char openair_rrc_gNB_configuration(const module_id_t gnb_mod_idP, gNB_RrcConfigu
   RB_INIT(&rrc->rrc_ue_head);
   rrc->initial_id2_s1ap_ids = hashtable_create (NUMBER_OF_UE_MAX * 2, NULL, NULL);
   rrc->s1ap_id2_s1ap_ids    = hashtable_create (NUMBER_OF_UE_MAX * 2, NULL, NULL);
+  rrc->initial_id2_ngap_ids = hashtable_create (NUMBER_OF_UE_MAX * 2, NULL, NULL);
+  rrc->ngap_id2_ngap_ids    = hashtable_create (NUMBER_OF_UE_MAX * 2, NULL, NULL);
   rrc->carrier.servingcellconfigcommon = configuration->scc;
   rrc->carrier.ssb_SubcarrierOffset = configuration->ssb_SubcarrierOffset;
   rrc->carrier.pdsch_AntennaPorts = configuration->pdsch_AntennaPorts;
@@ -1092,6 +1094,34 @@ rrc_gNB_decode_dcch(
 
                 ue_context_p->ue_context.ue_release_timer = 0;
                 break;
+
+            case NR_UL_DCCH_MessageType__c1_PR_ulInformationTransfer:
+                LOG_I(NR_RRC,"Recived RRC GNB UL Information Transfer \n");
+                if(!ue_context_p) {
+                    LOG_I(NR_RRC, "Processing ulInformationTransfer UE %x, ue_context_p is NULL\n", ctxt_pP->rnti);
+                    break;
+                }
+
+                LOG_D(NR_RRC,"[MSG] RRC UL Information Transfer \n");
+                LOG_DUMPMSG(RRC,DEBUG_RRC,(char *)Rx_sdu,sdu_sizeP,
+                            "[MSG] RRC UL Information Transfer \n");
+                MSC_LOG_RX_MESSAGE(
+                  MSC_RRC_GNB,
+                  MSC_RRC_UE,
+                  Rx_sdu,
+                  sdu_sizeP,
+                  MSC_AS_TIME_FMT" ulInformationTransfer UE %x size %u",
+                  MSC_AS_TIME_ARGS(ctxt_pP),
+                  ue_context_p->ue_context.rnti,
+                  sdu_sizeP);
+
+                if (AMF_MODE_ENABLED == 1) {
+                    rrc_gNB_send_NGAP_UPLINK_NAS(ctxt_pP,
+                                              ue_context_p,
+                                              ul_dcch_msg);
+                }
+                break;
+
             case NR_UL_DCCH_MessageType__c1_PR_securityModeComplete:
                 // to avoid segmentation fault
                 if(!ue_context_p) {

openair2/RRC/NR/rrc_gNB_NGAP.c

@@ -48,6 +48,10 @@
 #include "S1AP_NAS-PDU.h"
 #include "executables/softmodem-common.h"
 #include "UTIL/OSA/osa_defs.h"
+#include "ngap_gNB_defs.h"
+#include "ngap_gNB_ue_context.h"
+#include "NR_ULInformationTransfer.h"
+#include "NR_UL-DCCH-Message.h"
 
 extern RAN_CONTEXT_t RC;
 
@@ -91,8 +95,62 @@ rrc_gNB_NGAP_get_ue_ids(
 //------------------------------------------------------------------------------
 {
     rrc_ue_ngap_ids_t *result = NULL;
+    rrc_ue_ngap_ids_t *result2 = NULL;
+  /*****************************/
+  instance_t instance = 0;
+  ngap_gNB_instance_t *ngap_gNB_instance_p = NULL;
+  ngap_gNB_ue_context_t *ue_desc_p = NULL;
+  rrc_gNB_ue_context_t *ue_context_p = NULL;
+  /*****************************/
+  hashtable_rc_t     h_rc;
 
+  if (ue_initial_id != UE_INITIAL_ID_INVALID) {
+    h_rc = hashtable_get(rrc_instance_pP->initial_id2_ngap_ids, (hash_key_t)ue_initial_id, (void **)&result);
+
+    if (h_rc == HASH_TABLE_OK) {
+      if (gNB_ue_ngap_idP > 0) {
+        h_rc = hashtable_get(rrc_instance_pP->ngap_id2_ngap_ids, (hash_key_t)gNB_ue_ngap_idP, (void **)&result2);
+
+        if (h_rc != HASH_TABLE_OK) { // this case is equivalent to associate gNB_ue_ngap_idP and ue_initial_id
+          result2 = malloc(sizeof(*result2));
+
+          if (NULL != result2) {
+            *result2 = *result;
+            result2->gNB_ue_ngap_id = gNB_ue_ngap_idP;
+            result->gNB_ue_ngap_id  = gNB_ue_ngap_idP;
+            h_rc = hashtable_insert(rrc_instance_pP->ngap_id2_ngap_ids, (hash_key_t)gNB_ue_ngap_idP, result2);
+
+            if (h_rc != HASH_TABLE_OK) {
+              LOG_E(NGAP, "[gNB %ld] Error while hashtable_insert in ngap_id2_ngap_ids gNB_ue_ngap_idP %"PRIu32"\n",
+                    rrc_instance_pP - RC.nrrrc[0],
+                    gNB_ue_ngap_idP);
+            }
+          }
+        } else { // here we should check that the association was done correctly
+          if ((result->ue_initial_id != result2->ue_initial_id) || (result->gNB_ue_ngap_id != result2->gNB_ue_ngap_id)) {
+            LOG_E(NGAP, "[gNB %ld] Error while hashtable_get, two rrc_ue_ngap_ids_t that should be equal, are not:\n \
+              ue_initial_id 1 = %"PRIu16",\n \
+              ue_initial_id 2 = %"PRIu16",\n \
+              gNB_ue_ngap_idP 1 = %"PRIu32",\n \
+              gNB_ue_ngap_idP 2 = %"PRIu32"\n",
+                  rrc_instance_pP - RC.nrrrc[0],
+                  result->ue_initial_id,
+                  result2->ue_initial_id,
+                  result->gNB_ue_ngap_id,
+                  result2->gNB_ue_ngap_id);
+            // Still return *result
+          }
+        }
+      } // end if if (eNB_ue_s1ap_id > 0)
+    } else { // end if (h_rc == HASH_TABLE_OK)
+      LOG_E(NGAP, "[gNB %ld] In hashtable_get, couldn't find in initial_id2_ngap_ids ue_initial_id %"PRIu16"\n",
+            rrc_instance_pP - RC.nrrrc[0],
+            ue_initial_id);
+      return NULL;
+    } // end else (h_rc != HASH_TABLE_OK)
+  } else { // end if (ue_initial_id != UE_INITIAL_ID_INVALID)
     /* TODO */
+  } // end else (ue_initial_id == UE_INITIAL_ID_INVALID)
 
     return result;
 }
@@ -199,10 +257,10 @@ rrc_gNB_send_NGAP_NAS_FIRST_REQ(
 )
 //------------------------------------------------------------------------------
 {
-    // gNB_RRC_INST *rrc = RC.nrrrc[ctxt_pP->module_id];
+    gNB_RRC_INST *rrc = RC.nrrrc[ctxt_pP->module_id];
     MessageDef         *message_p         = NULL;
     rrc_ue_ngap_ids_t  *rrc_ue_ngap_ids_p = NULL;
-    // hashtable_rc_t      h_rc;
+    hashtable_rc_t      h_rc;
 
     message_p = itti_alloc_new_message(TASK_RRC_GNB, NGAP_NAS_FIRST_REQ);
     memset(&message_p->ittiMsg.ngap_nas_first_req, 0, sizeof(ngap_nas_first_req_t));
@@ -213,15 +271,15 @@ rrc_gNB_send_NGAP_NAS_FIRST_REQ(
     rrc_ue_ngap_ids_p->gNB_ue_ngap_id = UE_INITIAL_ID_INVALID;
     rrc_ue_ngap_ids_p->ue_rnti        = ctxt_pP->rnti;
 
-    // h_rc = hashtable_insert(RC.nrrrc[ctxt_pP->module_id]->initial_id2_s1ap_ids,
+    h_rc = hashtable_insert(RC.nrrrc[ctxt_pP->module_id]->initial_id2_ngap_ids,
-    //                         (hash_key_t)ue_context_pP->ue_context.ue_initial_id,
+                            (hash_key_t)ue_context_pP->ue_context.ue_initial_id,
-    //                         rrc_ue_s1ap_ids_p);
+                            rrc_ue_ngap_ids_p);
 
-    // if (h_rc != HASH_TABLE_OK) {
+    if (h_rc != HASH_TABLE_OK) {
-    //   LOG_E(S1AP, "[eNB %d] Error while hashtable_insert in initial_id2_s1ap_ids ue_initial_id %u\n",
+      LOG_E(NGAP, "[gNB %d] Error while hashtable_insert in initial_id2_ngap_ids ue_initial_id %u\n",
-    //         ctxt_pP->module_id,
+            ctxt_pP->module_id,
-    //         ue_context_pP->ue_context.ue_initial_id);
+            ue_context_pP->ue_context.ue_initial_id);
-    // }
+    }
 
     /* Assume that cause is coded in the same way in RRC and NGap, just check that the value is in NGap range */
     AssertFatal(ue_context_pP->ue_context.establishment_cause < NGAP_RRC_CAUSE_LAST,
@@ -590,3 +648,32 @@ rrc_gNB_process_NGAP_DOWNLINK_NAS(
         return (0);
     }
 }
+
+//------------------------------------------------------------------------------
+void
+rrc_gNB_send_NGAP_UPLINK_NAS(
+  const protocol_ctxt_t    *const ctxt_pP,
+  rrc_gNB_ue_context_t     *const ue_context_pP,
+  NR_UL_DCCH_Message_t     *const ul_dcch_msg
+)
+//------------------------------------------------------------------------------
+{
+    uint32_t pdu_length;
+    uint8_t *pdu_buffer;
+    MessageDef *msg_p;
+    NR_ULInformationTransfer_t *ulInformationTransfer = ul_dcch_msg->message.choice.c1->choice.ulInformationTransfer;
+
+    if (ulInformationTransfer->criticalExtensions.present == NR_ULInformationTransfer__criticalExtensions_PR_ulInformationTransfer) {
+        pdu_length = ulInformationTransfer->criticalExtensions.choice.ulInformationTransfer->dedicatedNAS_Message->size;
+        pdu_buffer = ulInformationTransfer->criticalExtensions.choice.ulInformationTransfer->dedicatedNAS_Message->buf;
+        msg_p = itti_alloc_new_message (TASK_RRC_GNB, NGAP_UPLINK_NAS);
+        NGAP_UPLINK_NAS (msg_p).gNB_ue_ngap_id = ue_context_pP->ue_context.gNB_ue_ngap_id;
+        NGAP_UPLINK_NAS (msg_p).nas_pdu.length = pdu_length;
+        NGAP_UPLINK_NAS (msg_p).nas_pdu.buffer = pdu_buffer;
+        // extract_imsi(NGAP_UPLINK_NAS (msg_p).nas_pdu.buffer,
+        //               NGAP_UPLINK_NAS (msg_p).nas_pdu.length,
+        //               ue_context_pP);
+        itti_send_msg_to_task (TASK_NGAP, ctxt_pP->instance, msg_p);
+        LOG_I(NR_RRC,"Send RRC GNB UL Information Transfer \n");
+    }
+}

openair2/RRC/NR/rrc_gNB_NGAP.h

@@ -37,6 +37,7 @@
 
 #include "NR_RRCSetupComplete-IEs.h"
 #include "NR_RegisteredAMF.h"
+#include "NR_UL-DCCH-Message.h"
 
 typedef struct rrc_ue_ngap_ids_s {
   /* Tree related data */
@@ -85,4 +86,11 @@ rrc_gNB_process_NGAP_DOWNLINK_NAS(
   mui_t      *rrc_gNB_mui
 );
 
+void
+rrc_gNB_send_NGAP_UPLINK_NAS(
+  const protocol_ctxt_t    *const ctxt_pP,
+  rrc_gNB_ue_context_t     *const ue_context_pP,
+  NR_UL_DCCH_Message_t     *const ul_dcch_msg
+);
+
 #endif

openair2/RRC/NR_UE/rrc_UE.c

@@ -2350,6 +2350,13 @@ nr_rrc_ue_decode_dcch(
                   LOG_I(NR_RRC, "[UE %d] Received %s: UEid %u, length %u , buffer %p\n", ctxt_pP->module_id,  messages_info[NAS_DOWNLINK_DATA_IND].name,
                         ctxt_pP->module_id, pdu_length, pdu_buffer);
                   //nas_proc_dl_transfer_ind (user, pdu_buffer, pdu_length);
+/*                  MessageDef *message_p;
+                  message_p = itti_alloc_new_message(TASK_RRC_NRUE, NAS_UPLINK_DATA_REQ);
+                  NAS_UPLINK_DATA_REQ(message_p).UEid          = ctxt_pP->module_id;
+                  NAS_UPLINK_DATA_REQ(message_p).nasMsg.data   = pdu_buffer;
+                  NAS_UPLINK_DATA_REQ(message_p).nasMsg.length = pdu_length;
+                  itti_send_msg_to_task(TASK_RRC_NRUE, ctxt_pP->instance, message_p);
+                  LOG_I(NR_RRC, " Send NAS_UPLINK_DATA_REQ message\n");*/
 #else
                   MessageDef *msg_p;
                   msg_p = itti_alloc_new_message(TASK_RRC_UE, NAS_DOWNLINK_DATA_IND);
@@ -2466,7 +2473,7 @@ void *rrc_nrue_task( void *args_p ) {
       case NAS_UPLINK_DATA_REQ: {
         uint32_t length;
         uint8_t *buffer;
-        LOG_D(NR_RRC, "[UE %d] Received %s: UEid %d\n", ue_mod_id, ITTI_MSG_NAME (msg_p), NAS_UPLINK_DATA_REQ (msg_p).UEid);
+        LOG_I(NR_RRC, "[UE %d] Received %s: UEid %d\n", ue_mod_id, ITTI_MSG_NAME (msg_p), NAS_UPLINK_DATA_REQ (msg_p).UEid);
         /* Create message for PDCP (ULInformationTransfer_t) */
         length = do_NR_ULInformationTransfer(&buffer, NAS_UPLINK_DATA_REQ (msg_p).nasMsg.length, NAS_UPLINK_DATA_REQ (msg_p).nasMsg.data);
         /* Transfer data to PDCP */

openair2/SIMULATION/NR_RRC/itti_sim.c

@@ -522,8 +522,8 @@ int main( int argc, char **argv )
     exit(-1);
   }
 
-  // AMF_MODE_ENABLED = !IS_SOFTMODEM_NOS1;
+  AMF_MODE_ENABLED = !IS_SOFTMODEM_NOS1;
-  AMF_MODE_ENABLED = 0;
+ // AMF_MODE_ENABLED = 0;
   NGAP_CONF_MODE   = !IS_SOFTMODEM_NOS1; //!get_softmodem_params()->phy_test;
 
 #if T_TRACER

openair3/NGAP/ngap_gNB_nas_procedures.c

@@ -465,6 +465,7 @@ int ngap_gNB_nas_uplink(instance_t instance, ngap_uplink_nas_t *ngap_uplink_nas_
     /* Prepare the NGAP message to encode */
     memset(&pdu, 0, sizeof(pdu));
     pdu.present = NGAP_NGAP_PDU_PR_initiatingMessage;
+    pdu.choice.initiatingMessage = (NGAP_InitiatingMessage_t *)calloc(1,sizeof(NGAP_InitiatingMessage_t));
     pdu.choice.initiatingMessage->procedureCode = NGAP_ProcedureCode_id_UplinkNASTransport;
     pdu.choice.initiatingMessage->criticality = NGAP_Criticality_ignore;
     pdu.choice.initiatingMessage->value.present = NGAP_InitiatingMessage__value_PR_UplinkNASTransport;
@@ -499,6 +500,7 @@ int ngap_gNB_nas_uplink(instance_t instance, ngap_uplink_nas_t *ngap_uplink_nas_
     ie->value.present = NGAP_UplinkNASTransport_IEs__value_PR_UserLocationInformation;
 
     ie->value.choice.UserLocationInformation.present = NGAP_UserLocationInformation_PR_userLocationInformationNR;
+    ie->value.choice.UserLocationInformation.choice.userLocationInformationNR = CALLOC(1,sizeof(struct NGAP_UserLocationInformationNR));
     userinfo_nr_p = ie->value.choice.UserLocationInformation.choice.userLocationInformationNR;
 
     /* Set nRCellIdentity. default userLocationInformationNR */
@@ -575,6 +577,7 @@ int ngap_gNB_nas_non_delivery_ind(instance_t instance,
     /* Prepare the NGAP message to encode */
     memset(&pdu, 0, sizeof(pdu));
     pdu.present = NGAP_NGAP_PDU_PR_initiatingMessage;
+    pdu.choice.initiatingMessage = (NGAP_InitiatingMessage_t *)calloc(1,sizeof(NGAP_InitiatingMessage_t));
     pdu.choice.initiatingMessage->procedureCode = NGAP_ProcedureCode_id_NASNonDeliveryIndication;
     pdu.choice.initiatingMessage->criticality = NGAP_Criticality_ignore;
     pdu.choice.initiatingMessage->value.present = NGAP_InitiatingMessage__value_PR_NASNonDeliveryIndication;
@@ -899,6 +902,7 @@ int ngap_gNB_ue_capabilities(instance_t instance,
     /* Prepare the NGAP message to encode */
     memset(&pdu, 0, sizeof(pdu));
     pdu.present = NGAP_NGAP_PDU_PR_initiatingMessage;
+    pdu.choice.initiatingMessage = (NGAP_InitiatingMessage_t *)calloc(1,sizeof(NGAP_InitiatingMessage_t));
     pdu.choice.initiatingMessage->procedureCode = NGAP_ProcedureCode_id_UERadioCapabilityInfoIndication;
     pdu.choice.initiatingMessage->criticality = NGAP_Criticality_ignore;
     pdu.choice.initiatingMessage->value.present = NGAP_InitiatingMessage__value_PR_UERadioCapabilityInfoIndication;