Modify configuration of NGAP and NAS messages to comply with OAI CN...

Modify configuration of NGAP and NAS messages to comply with OAI CN configuration according to Fujitsu patch

-Hardcodings to be removed later when the NAS extensions will be integrated for OAI UE

openair3/NAS/NR_UE/nr_nas_msg_sim.c

@@ -40,12 +40,20 @@
 #include "PduSessionEstablishRequest.h"
 # include "intertask_interface.h"
 
-char netName[] = "5G:mnc093.mcc208.3gppnetwork.org";
+/*char netName[] = "5G:mnc093.mcc208.3gppnetwork.org";
 char imsi[] = "2089300007487";
 // USIM_API_K: 5122250214c33e723a5dd523fc145fc0
 uint8_t k[16] = {0x51, 0x22, 0x25, 0x02, 0x14,0xc3, 0x3e, 0x72, 0x3a, 0x5d, 0xd5, 0x23, 0xfc, 0x14, 0x5f, 0xc0};
 // OPC: 981d464c7c52eb6e5036234984ad0bcf
-const uint8_t opc[16] = {0x98, 0x1d, 0x46, 0x4c,0x7c,0x52,0xeb, 0x6e, 0x50, 0x36, 0x23, 0x49, 0x84, 0xad, 0x0b, 0xcf};
+const uint8_t opc[16] = {0x98, 0x1d, 0x46, 0x4c,0x7c,0x52,0xeb, 0x6e, 0x50, 0x36, 0x23, 0x49, 0x84, 0xad, 0x0b, 0xcf};*/
+
+
+char netName[] = "5G:mnc099.mcc208.3gppnetwork.org";
+char imsi[] = "2089900007487"; //"208990100001100";
+// USIM_API_K: fe c8 6b a6 eb 70 7e d0 89 05 75 7b 1b b4 4b 8f 
+uint8_t k[16] = {0xfe, 0xc8, 0x6b, 0xa6, 0xeb, 0x70, 0x7e, 0xd0, 0x89, 0x05, 0x75, 0x7b, 0x1b, 0xb4, 0x4b, 0x8f};
+// OPC: c4 24 49 36 3b ba d0 2b 66 d1 6b c9 75 d7 7c c1
+const uint8_t opc[16] = {0xc4, 0x24, 0x49, 0x36, 0x3b, 0xba, 0xd0, 0x2b, 0x66, 0xd1, 0x6b, 0xc9, 0x75, 0xd7, 0x7c, 0xc1};
 
 uint8_t  *registration_request_buf;
 uint32_t  registration_request_len;
@@ -275,14 +283,14 @@ void generateRegistrationRequest(as_nas_info_t *initialNasMsg) {
   mm_msg->registration_request.fgsregistrationtype = INITIAL_REGISTRATION;
   mm_msg->registration_request.naskeysetidentifier.naskeysetidentifier = 1;
   size += 1;
-  if(1){
+  if(0){
     mm_msg->registration_request.fgsmobileidentity.guti.typeofidentity = FGS_MOBILE_IDENTITY_5G_GUTI;
     mm_msg->registration_request.fgsmobileidentity.guti.amfregionid = 0xca;
     mm_msg->registration_request.fgsmobileidentity.guti.amfpointer = 0;
     mm_msg->registration_request.fgsmobileidentity.guti.amfsetid = 1016;
     mm_msg->registration_request.fgsmobileidentity.guti.tmsi = 10;
     mm_msg->registration_request.fgsmobileidentity.guti.mncdigit1 = 9;
-    mm_msg->registration_request.fgsmobileidentity.guti.mncdigit2 = 3;
+    mm_msg->registration_request.fgsmobileidentity.guti.mncdigit2 = 9;
     mm_msg->registration_request.fgsmobileidentity.guti.mncdigit3 = 0xf;
     mm_msg->registration_request.fgsmobileidentity.guti.mccdigit1 = 2;
     mm_msg->registration_request.fgsmobileidentity.guti.mccdigit2 = 0;
@@ -293,7 +301,7 @@ void generateRegistrationRequest(as_nas_info_t *initialNasMsg) {
   } else {
     mm_msg->registration_request.fgsmobileidentity.suci.typeofidentity = FGS_MOBILE_IDENTITY_SUCI;
     mm_msg->registration_request.fgsmobileidentity.suci.mncdigit1 = 9;
-    mm_msg->registration_request.fgsmobileidentity.suci.mncdigit2 = 3;
+    mm_msg->registration_request.fgsmobileidentity.suci.mncdigit2 = 9;
     mm_msg->registration_request.fgsmobileidentity.suci.mncdigit3 = 0xf;
     mm_msg->registration_request.fgsmobileidentity.suci.mccdigit1 = 2;
     mm_msg->registration_request.fgsmobileidentity.suci.mccdigit2 = 0;
@@ -350,7 +358,7 @@ void generateIdentityResponse(as_nas_info_t *initialNasMsg, uint8_t identitytype
   if(identitytype == FGS_MOBILE_IDENTITY_SUCI){
     mm_msg->fgs_identity_response.fgsmobileidentity.suci.typeofidentity = FGS_MOBILE_IDENTITY_SUCI;
     mm_msg->fgs_identity_response.fgsmobileidentity.suci.mncdigit1 = 9;
-    mm_msg->fgs_identity_response.fgsmobileidentity.suci.mncdigit2 = 3;
+    mm_msg->fgs_identity_response.fgsmobileidentity.suci.mncdigit2 = 9;
     mm_msg->fgs_identity_response.fgsmobileidentity.suci.mncdigit3 = 0xf;
     mm_msg->fgs_identity_response.fgsmobileidentity.suci.mccdigit1 = 2;
     mm_msg->fgs_identity_response.fgsmobileidentity.suci.mccdigit2 = 0;
@@ -614,14 +622,15 @@ void generatePduSessionEstablishRequest(as_nas_info_t *initialNasMsg){
   memset(&nas_msg, 0, sizeof(fgs_nas_message_t));
 
   // setup pdu session establishment request
-  uint16_t req_length = 6;
+  uint16_t req_length = 7;
   uint8_t *req_buffer = malloc(req_length);
   pdu_session_establishment_request_msg pdu_session_establish;
   pdu_session_establish.protocoldiscriminator = FGS_SESSION_MANAGEMENT_MESSAGE;
   pdu_session_establish.pdusessionid = 10;
-  pdu_session_establish.pti = 0;
+  pdu_session_establish.pti = 1;
   pdu_session_establish.pdusessionestblishmsgtype = FGS_PDU_SESSION_ESTABLISHMENT_REQ;
   pdu_session_establish.maxdatarate = 0xffff;
+  pdu_session_establish.pdusessiontype = 0x91;
   encode_pdu_session_establishment_request(&pdu_session_establish, req_buffer);
 
 
@@ -629,9 +638,8 @@ void generatePduSessionEstablishRequest(as_nas_info_t *initialNasMsg){
   MM_msg *mm_msg;
   nas_stream_cipher_t stream_cipher;
   uint8_t             mac[4];
-  uint8_t             nssai[]={1,1,2,3};
-  uint8_t             dnn[9]={0x8,0x69,0x6e,0x74,0x65,0x72,0x6e,0x65,0x74};
-  // set security protected header
+  uint8_t             nssai[]={1,0,0,1}; //Corresponding to SST:1, SD:1
+  uint8_t            dnn[4]={0x4,0x6f,0x61,0x69}; //Corresponding to dnn:"oai"
   nas_msg.header.protocol_discriminator = FGS_MOBILITY_MANAGEMENT_MESSAGE;
   nas_msg.header.security_header_type = INTEGRITY_PROTECTED_AND_CIPHERED_WITH_NEW_SECU_CTX;
   size += 7;
@@ -663,9 +671,9 @@ void generatePduSessionEstablishRequest(as_nas_info_t *initialNasMsg){
   mm_msg->uplink_nas_transport.snssai.length = 4;
   mm_msg->uplink_nas_transport.snssai.value = nssai;
   size += (1+1+4);
-  mm_msg->uplink_nas_transport.dnn.length = 9;
+  mm_msg->uplink_nas_transport.dnn.length = 4;
   mm_msg->uplink_nas_transport.dnn.value = dnn;
-  size += (1+1+9);
+  size += (1+1+4);
 
   // encode the message
   initialNasMsg->data = (Byte_t *)malloc(size * sizeof(Byte_t));

openair3/NGAP/ngap_common.h

@@ -144,7 +144,6 @@ extern int asn1_xer_print;
     if (ie == NULL ) { \
       NGAP_ERROR("NGAP_FIND_PROTOCOLIE_BY_ID: %s %d: ie is NULL\n",__FILE__,__LINE__);\
     } \
-    if (mandatory)  DevAssert(ie != NULL); \
   } while(0)
 /** \brief Function callback prototype.
  **/

openair3/NGAP/ngap_gNB_handlers.c

@@ -1061,12 +1061,31 @@ int ngap_gNB_handle_initial_context_request(uint32_t   assoc_id,
   NGAP_FIND_PROTOCOLIE_BY_ID(NGAP_InitialContextSetupRequestIEs_t, ie, container,
                                NGAP_ProtocolIE_ID_id_AllowedNSSAI, true);
   
-  if (ie != NULL) { /* checked by macro but cppcheck doesn't see it */
+  //if (ie != NULL) { /* checked by macro but cppcheck doesn't see it */
     NGAP_AllowedNSSAI_Item_t *allow_nssai_item_p = NULL;
   
-    NGAP_DEBUG("AllowedNSSAI.list.count %d\n", ie->value.choice.AllowedNSSAI.list.count);
-    DevAssert(ie->value.choice.AllowedNSSAI.list.count > 0);
-    DevAssert(ie->value.choice.AllowedNSSAI.list.count <= NGAP_maxnoofAllowedS_NSSAIs);
+    NGAP_WARN("AllowedNSSAI.list.count %d\n", ie != NULL ? ie->value.choice.AllowedNSSAI.list.count : 2);
+    //NGAP_DEBUG("AllowedNSSAI.list.count %d\n", ie->value.choice.AllowedNSSAI.list.count);
+    //DevAssert(ie->value.choice.AllowedNSSAI.list.count > 0);
+    //DevAssert(ie->value.choice.AllowedNSSAI.list.count <= NGAP_maxnoofAllowedS_NSSAIs);
+
+    if (ie == NULL) {
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).nb_allowed_nssais = 2;
+
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[0].sST = 01;
+
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[0].sD_flag = 1;
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[0].sD[0] = 01;
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[0].sD[1] = 02;
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[0].sD[2] = 03;
+
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[1].sST = 01;
+ 
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[1].sD_flag = 1;
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[1].sD[0] = 00;//11;
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[1].sD[1] = 00;//22;
+    	NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[1].sD[2] = 01;//33;
+    } else {
 
     NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).nb_allowed_nssais = ie->value.choice.AllowedNSSAI.list.count;
     
@@ -1082,9 +1101,10 @@ int ngap_gNB_handle_initial_context_request(uint32_t   assoc_id,
         NGAP_INITIAL_CONTEXT_SETUP_REQ(message_p).allowed_nssai[i].sD[2] = allow_nssai_item_p->s_NSSAI.sD->buf[2];
       }
     }
-  } else {/* ie != NULL */
-    return -1;
-  }
+   }
+  //} else {/* ie != NULL */
+  //  return -1;
+  //}
 
   /* id-UESecurityCapabilities */
   NGAP_FIND_PROTOCOLIE_BY_ID(NGAP_InitialContextSetupRequestIEs_t, ie, container,