update header files/polish the code

src/api-server/README.md

-# REST API Server for Nsmf_PDUSession
-
-## Overview
-This API Server was generated by the [OpenAPI Generator](https://openapi-generator.tech) project.
-It uses the [Pistache](https://github.com/oktal/pistache) Framework.
-
-## Files organization
-The Pistache C++ REST server generator creates three folders:
-- `api`: This folder contains the handlers for each method specified in the OpenAPI definition. Every handler extracts
-the path and body parameters (if any) from the requests and tries to parse and possibly validate them.
-Once this step is completed, the main API class calls the corresponding abstract method that should be implemented
-by the developer (a basic implementation is provided under the `impl` folder)
-- `impl`: As written above, the implementation folder contains, for each API, the corresponding implementation class,
-which extends the main API class and implements the abstract methods.
-Every method receives the path and body parameters as constant reference variables and a reference to the response
-object, that should be filled with the right response and sent at the end of the method with the command:
-response.send(returnCode, responseBody, [mimeType])
-- `model`: This folder contains the corresponding class for every object schema found in the OpenAPI specification.
-
-The main folder contains also a file with a main that can be used to start the server.
-Of course, is you should customize this file based on your needs
-
-## Installation
-First of all, you need to download and install the libraries listed [here](#libraries-required).
-
-Once the libraries are installed, in order to compile and run the server please follow the steps below:
-```bash
-mkdir build
-cd build
-cmake ..
-make
-```
-
-Once compiled run the server:
-
-```bash
-cd build
-./api-server
-```
-
-## Libraries required
-- [pistache](http://pistache.io/quickstart)
-- [JSON for Modern C++](https://github.com/nlohmann/json/#integration): Please download the `json.hpp` file and
-put it under the model/nlohmann folder
-
-## Namespaces
-oai.smf.api
-oai.smf.model

src/common/3gpp_29.274.h

@@ -495,6 +495,7 @@ typedef struct imsi_s imsi_t;
 // 8.4 Cause
 enum cause_value_e {
   /* Request / Initial message */
+  UNKNOWN_ERROR                   = -1,
   LOCAL_DETACH                    = 2,
   COMPLETE_DETACH                 = 3,
   RAT_CHANGE_3GPP_TO_NON_3GPP     = 4,  ///< RAT changed from 3GPP to Non-3GPP

src/common/3gpp_29.502.h

@@ -100,29 +100,31 @@ static const std::vector<std::string> pdu_session_application_error_e2str = {
 		"NETWORK_FAILURE"
 };
 
-enum n2_sm_info_type_e {
-	PDU_RES_SETUP_REQ	= 1,
-	PDU_RES_SETUP_RSP = 2,
-	PDU_RES_SETUP_FAIL = 3,
-	PDU_RES_REL_CMD = 4,
-	PDU_RES_REL_RSP = 5,
-	PDU_RES_MOD_REQ = 6,
-	PDU_RES_MOD_RSP = 7,
-	PDU_RES_MOD_FAIL = 8,
-	PDU_RES_NTY = 9,
-	PDU_RES_NTY_REL = 10,
-	PDU_RES_MOD_IND = 11,
-	PDU_RES_MOD_CFM = 12,
-	PATH_SWITCH_REQ = 13,
-	PATH_SWITCH_SETUP_FAIL = 14,
-	PATH_SWITCH_REQ_ACK = 15,
-	PATH_SWITCH_REQ_FAIL = 16,
-	HANDOVER_REQUIRED = 17,
-	HANDOVER_CMD = 18,
-	HANDOVER_PREP_FAIL = 19,
-	HANDOVER_REQ_ACK = 20,
-	HANDOVER_RES_ALLOC_FAIL = 21,
-	SECONDARY_RAT_USAGE = 22
+
+//6.1.6.3.12 Enumeration: N2SmInfoType @3GPP TS 29.502 V16.0.0
+enum class n2_sm_info_type_e {
+  PDU_RES_SETUP_REQ       = 1, //PDU Session Resource Setup Request Transfer
+  PDU_RES_SETUP_RSP       = 2, //PDU Session Resource Setup Response Transfer
+  PDU_RES_SETUP_FAIL      = 3, //PDU Session Resource Setup Unsuccessful Transfer
+  PDU_RES_REL_CMD         = 4, //PDU Session Resource Release Command Transfer
+  PDU_RES_REL_RSP         = 5, //PDU Session Resource Release Response Transfer
+  PDU_RES_MOD_REQ         = 6, //PDU Session Resource Modify Request Transfer
+  PDU_RES_MOD_RSP         = 7, //PDU Session Resource Modify Response Transfer
+  PDU_RES_MOD_FAIL        = 8, //PDU Session Resource Modify Unsuccessful Transfer
+  PDU_RES_NTY             = 9, //PDU Session Resource Notify Transfer
+  PDU_RES_NTY_REL         = 10, //PDU Session Resource Notify Released Transfer
+  PDU_RES_MOD_IND         = 11, //PDU Session Resource Modify Indication Transfer
+  PDU_RES_MOD_CFM         = 12, //PDU Session Resource Modify Confirm Transfer
+  PATH_SWITCH_REQ         = 13, //Path Switch Request Transfer
+  PATH_SWITCH_SETUP_FAIL  = 14, //Path Switch Request Setup Failed Transfer
+  PATH_SWITCH_REQ_ACK     = 15, //Path Switch Request Acknowledge Transfer
+  PATH_SWITCH_REQ_FAIL    = 16, //Path Switch Request Unsuccessful Transfer
+  HANDOVER_REQUIRED       = 17, //Handover Required Transfer
+  HANDOVER_CMD            = 18, //Handover Command Transfer
+  HANDOVER_PREP_FAIL      = 19, //Handover Preparation Unsuccessful Transfer
+  HANDOVER_REQ_ACK        = 20, //Handover Request Acknowledge Transfer
+  HANDOVER_RES_ALLOC_FAIL = 21, //Handover Resource Allocation Unsuccessful Transfer
+  SECONDARY_RAT_USAGE     = 22 //Secondary RAT Data Usage Report Transfer
 };
 
 static const std::vector<std::string> n2_sm_info_type_e2str = {
@@ -151,5 +153,18 @@ static const std::vector<std::string> n2_sm_info_type_e2str = {
 		"SECONDARY_RAT_USAGE"
 };
 
+enum class upCnx_state_e {
+  UPCNX_STATE_ACTIVATED = 0,
+  UPCNX_STATE_DEACTIVATED  = 1,
+  UPCNX_STATE_ACTIVATING =2
+};
+
+static const std::vector<std::string> upCnx_state_e2str = {
+    "UPCNX_STATE_ACTIVATED",
+    "UPCNX_STATE_DEACTIVATED",
+    "UPCNX_STATE_ACTIVATING"
+};
+
+
 
 #endif

src/common/msg/itti_msg_n11.hpp

@@ -69,13 +69,15 @@ public:
 class itti_n11_create_sm_context_response : public itti_n11_msg {
 public:
 	itti_n11_create_sm_context_response(const task_id_t orig, const task_id_t dest, Pistache::Http::ResponseWriter& response):
-		itti_n11_msg(N11_SESSION_CREATE_SM_CONTEXT_RESPONSE, orig, dest),  http_response(response.clone()) {}
-	itti_n11_create_sm_context_response(const itti_n11_create_sm_context_response& i) : itti_n11_msg(i), res(i.res), http_response(i.http_response.clone())  {}
+		itti_n11_msg(N11_SESSION_CREATE_SM_CONTEXT_RESPONSE, orig, dest),  http_response(response.clone()), scid(0) {}
+	itti_n11_create_sm_context_response(const itti_n11_create_sm_context_response& i) : itti_n11_msg(i), res(i.res), http_response(i.http_response.clone()), scid(i.scid) {}
 	itti_n11_create_sm_context_response(const itti_n11_create_sm_context_response& i, const task_id_t orig, const task_id_t dest) :
-	  itti_n11_msg(i, orig, dest), res(i.res), http_response(i.http_response.clone()) {}
+	  itti_n11_msg(i, orig, dest), res(i.res), http_response(i.http_response.clone()), scid(i.scid) {}
   const char* get_msg_name() {return "N11_SESSION_CREATE_SM_CONTEXT_RESPONSE";};
   smf::pdu_session_create_sm_context_response res;
   Pistache::Http::ResponseWriter http_response;
+  void set_scid(scid_t id) {scid = id;};
+  scid_t scid; //SM Context ID
 
 };
 
@@ -109,4 +111,56 @@ public:
 
 };
 
+
+//-----------------------------------------------------------------------------
+class itti_n11_modify_session_request_smf_requested : public itti_n11_msg {
+public:
+  itti_n11_modify_session_request_smf_requested(const task_id_t orig, const task_id_t dest):
+    itti_n11_msg(N11_SESSION_MODIFICATION_REQUEST_SMF_REQUESTED, orig, dest) {}
+  itti_n11_modify_session_request_smf_requested(const itti_n11_modify_session_request_smf_requested& i) : itti_n11_msg(i), req(i.req) {}
+  itti_n11_modify_session_request_smf_requested(const itti_n11_modify_session_request_smf_requested& i, const task_id_t orig, const task_id_t dest) :
+    itti_n11_msg(i, orig, dest), req(i.req) {}
+  const char* get_msg_name() {return "N11_SESSION_MODIFICATION_REQUEST_SMF_REQUESTED";};
+  smf::pdu_session_create_sm_context_request req;
+};
+
+
+//-----------------------------------------------------------------------------
+class itti_n11_update_pdu_session_status : public itti_n11_msg {
+public:
+  itti_n11_update_pdu_session_status(const task_id_t orig, const task_id_t dest):
+    itti_n11_msg(N11_SESSION_UPDATE_PDU_SESSION_STATUS, orig, dest), scid(0), pdu_session_status(pdu_session_status_e::PDU_SESSION_INACTIVE)  {}
+  itti_n11_update_pdu_session_status(const itti_n11_update_pdu_session_status& i) : itti_n11_msg(i), scid(i.scid), pdu_session_status(i.pdu_session_status) {}
+  itti_n11_update_pdu_session_status(const itti_n11_update_pdu_session_status& i, const task_id_t orig, const task_id_t dest) :
+    itti_n11_msg(i, orig, dest), scid(i.scid), pdu_session_status(i.pdu_session_status){}
+  const char* get_msg_name() {return "N11_SESSION_UPDATE_PDU_SESSION_STATUS";};
+  void set_scid(scid_t id) {scid = id;};
+  scid_t scid; //SM Context ID
+  pdu_session_status_e pdu_session_status;
+  void set_pdu_session_status(pdu_session_status_e status) {pdu_session_status = status;};
+
+};
+
+
+//-----------------------------------------------------------------------------
+class itti_n11_n1n2_message_transfer_response_status : public itti_n11_msg {
+public:
+  itti_n11_n1n2_message_transfer_response_status(const task_id_t orig, const task_id_t dest):
+    itti_n11_msg(N11_SESSION_N1N2_MESSAGE_TRANSFER_RESPONSE_STATUS, orig, dest), scid(0), response_code(0), msg_type(0) {}
+  itti_n11_n1n2_message_transfer_response_status(const itti_n11_n1n2_message_transfer_response_status& i) : itti_n11_msg(i), scid(i.scid), response_code(i.response_code), msg_type(i.msg_type)  {}
+  itti_n11_n1n2_message_transfer_response_status(const itti_n11_n1n2_message_transfer_response_status& i, const task_id_t orig, const task_id_t dest) :
+    itti_n11_msg(i, orig, dest), scid(i.scid), response_code(i.response_code), msg_type(i.msg_type){}
+  const char* get_msg_name() {return "N11_SESSION_N1N2_MESSAGE_TRANSFER_RESPONSE_STATUS";};
+  void set_scid(scid_t id) {scid = id;};
+  void set_response_code(int16_t code) {response_code = code;};
+  void set_cause(std::string c) {cause = c;};
+  void set_msg_type(uint8_t type) {msg_type = type;};
+  scid_t scid; //SM Context ID
+  int16_t response_code;
+  std::string cause;
+  uint8_t msg_type;
+
+};
+
+
 #endif /* ITTI_MSG_N11_HPP_INCLUDED_ */

src/common/msg/itti_msg_n4_restore.hpp

@@ -36,7 +36,7 @@
 class itti_n4_restore : public itti_msg {
 public:
 	itti_n4_restore(const task_id_t origin, const task_id_t destination):
-    itti_msg(RESTORE_SX_SESSIONS, origin, destination), sessions() {}
+    itti_msg(RESTORE_N4_SESSIONS, origin, destination), sessions() {}
 	itti_n4_restore(const itti_n4_restore& i) : itti_msg(i), sessions(i.sessions)  {}
 	itti_n4_restore(const itti_n4_restore& i, const task_id_t orig, const task_id_t dest) : itti_n4_restore(i)  {
     origin = orig;

src/common/msg/itti_msg_nx.hpp

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+/*
+ *  itti_msg_nx.hpp
+ *
+ *  Created on:
+ *  Author:
+ */
+
+#ifndef ITTI_MSG_NX_HPP_INCLUDED_
+#define ITTI_MSG_NX_HPP_INCLUDED_
+
+#include "itti_msg.hpp"
+#include "smf_msg.hpp"
+#include "pistache/http.h"
+
+class itti_nx_msg : public itti_msg {
+public:
+	itti_nx_msg(const itti_msg_type_t  msg_type, const task_id_t orig, const task_id_t dest):
+    itti_msg(msg_type, orig, dest) {
+
+  }
+	itti_nx_msg(const itti_nx_msg& i) : itti_msg(i) {}
+	itti_nx_msg(const itti_nx_msg& i, const task_id_t orig, const task_id_t dest) :
+		itti_nx_msg(i)
+  {
+    origin = orig;
+    destination = dest;
+  }
+
+};
+
+//-----------------------------------------------------------------------------
+class itti_nx_modify_pdu_session_request_network_requested : public itti_nx_msg {
+public:
+	itti_nx_modify_pdu_session_request_network_requested(const task_id_t orig, const task_id_t dest):
+		itti_nx_msg(NX_SESSION_MODIFICATION_REQUEST_NETWORK_REQUESTED, orig, dest) {}
+	itti_nx_modify_pdu_session_request_network_requested(const itti_nx_modify_pdu_session_request_network_requested& i) : itti_nx_msg(i)  {}
+	itti_nx_modify_pdu_session_request_network_requested(const itti_nx_modify_pdu_session_request_network_requested& i, const task_id_t orig, const task_id_t dest) :
+		itti_nx_msg(i, orig, dest){}
+  const char* get_msg_name() {return "NX_SESSION_MODIFICATION_REQUEST_NETWORK_REQUESTED";};
+//  smf::pdu_session_create_sm_context_request req;
+};
+
+#endif /* ITTI_MSG_NX_HPP_INCLUDED_ */

src/common/nas/3gpp_38.401.h

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
 #ifndef FILE_3GPP_38_401_SEEN
 #define FILE_3GPP_38_401_SEEN
 

src/common/nas/common_types.h

@@ -38,9 +38,9 @@ typedef uint32_t                 sctp_assoc_id_t;
 
 #define INVALID_RAN_UE_NGAP_ID_KEY 0xFFFFFFFFFFFFFFFF
 #define RAN_UE_NGAP_ID_MASK        0x00FFFFFF
-#define RAN_UE_NGAP_ID_FMT         "0x%06"PRIX32
-#define GNB_UE_NGAP_ID_FMT         "0x%06"PRIX32
-#define AMF_UE_NGAP_ID_FMT         "0x%08"PRIX32
+#define RAN_UE_NGAP_ID_FMT         "0x%06" PRIX32
+#define GNB_UE_NGAP_ID_FMT         "0x%06" PRIX32
+#define AMF_UE_NGAP_ID_FMT         "0x%08" PRIX32
 #define INVALID_AMF_UE_NGAP_ID  0x0
 
 #define AMF_UE_NGAP_ID_MASK_       0x0000FFFFFFFFFF

src/common/ngap/ngap_common.c

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
 #include <stdint.h>
     
 #include "ngap_common.h"

src/common/ngap/ngap_common.h

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
 #ifndef FILE_NGAP_COMMON_SEEN
 #define FILE_NGAP_COMMON_SEEN
 

src/common/smf.h

@@ -107,5 +107,55 @@ typedef struct pdu_session_type_s {
   const std::string& toString() const {return pdu_session_type_e2str.at(pdu_session_type);}
 } pdu_session_type_t;
 
+//SMF + AMF + 3GPP TS 29.571 (Common data)
+enum class http_response_codes_e {
+  HTTP_RESPONSE_CODE_OK = 200,
+  HTTP_RESPONSE_CODE_ACCEPTED = 202,
+  HTTP_RESPONSE_CODE_BAD_REQUEST = 400,
+  HTTP_RESPONSE_CODE_UNAUTHORIZED = 401,
+  HTTP_RESPONSE_CODE_FORBIDDEN = 403,
+  HTTP_RESPONSE_CODE_NOT_FOUND = 404,
+  HTTP_RESPONSE_CODE_METHOD_NOT_ALLOWED = 405,
+  HTTP_RESPONSE_CODE_REQUEST_TIMEOUT = 408,
+  HTTP_RESPONSE_CODE_406_NOT_ACCEPTED = 406,
+  HTTP_RESPONSE_CODE_CONFLICT = 409,
+  HTTP_RESPONSE_CODE_GONE = 410,
+  HTTP_RESPONSE_CODE_LENGTH_REQUIRED = 411,
+  HTTP_RESPONSE_CODE_PRECONDITION_FAILED = 412,
+  HTTP_RESPONSE_CODE_PAYLOAD_TOO_LARGE = 413,
+  HTTP_RESPONSE_CODE_URI_TOO_LONG = 414,
+  HTTP_RESPONSE_CODE_UNSUPPORTED_MEDIA_TYPE = 415,
+  HTTP_RESPONSE_CODE_TOO_MANY_REQUESTS = 429,
+  HTTP_RESPONSE_CODE_INTERNAL_SERVER_ERROR = 500,
+  HTTP_RESPONSE_CODE_NOT_IMPLEMENTED = 501,
+  HTTP_RESPONSE_CODE_SERVICE_UNAVAILABLE = 503,
+  HTTP_RESPONSE_CODE_GATEWAY_TIMEOUT = 504
+
+};
+
+
+//From 23.502
+enum class session_management_procedures_type_e {
+  PDU_SESSION_ESTABLISHMENT_UE_REQUESTED = 0,
+  PDU_SESSION_MODIFICATION_UE_INITIATED = 1,
+  PDU_SESSION_MODIFICATION_SMF_REQUESTED = 2,
+  PDU_SESSION_MODIFICATION_AN_REQUESTED = 3,
+  PDU_SESSION_RELEASE_UE_REQUESTED = 4,
+  PDU_SESSION_RELEASE_NETWORK_REQUESTED = 5,
+  SERVICE_REQUEST_UE_TRIGGERED = 6,
+  SERVICE_REQUEST_NETWORK_TRIGGERED = 7
+
+};
+
+static const std::vector<std::string> session_management_procedures_type_e2str = {
+    "PDU_SESSION_ESTABLISHMENT_UE_REQUESTED",
+    "PDU_SESSION_MODIFICATION_UE_INITIATED",
+    "PDU_SESSION_MODIFICATION_SMF_REQUESTED",
+    "PDU_SESSION_MODIFICATION_AN_REQUESTED",
+    "PDU_SESSION_RELEASE_UE_REQUESTED",
+    "PDU_SESSION_RELEASE_NETWORK_REQUESTED",
+    "SERVICE_REQUEST_UE_TRIGGERED",
+    "SERVICE_REQUEST_NETWORK_TRIGGERED"
+};
 
 #endif

src/itti/itti_msg.hpp

@@ -38,7 +38,6 @@ typedef enum {
   TASK_GTPV2_C,
   TASK_SMF_APP,
   TASK_SMF_N4,
-  TASK_SPGWU_SX,
   TASK_SMF_N10,
   TASK_SMF_N11,
   TASK_MAX,
@@ -60,7 +59,7 @@ typedef enum {
   ITTI_MSG_TYPE_NONE = -1,
   ITTI_MSG_TYPE_FIRST = 0,
   ASYNC_SHELL_CMD = ITTI_MSG_TYPE_FIRST,
-  RESTORE_SX_SESSIONS,
+  RESTORE_N4_SESSIONS,
   S11_REMOTE_PEER_NOT_RESPONDING,
   S11_CREATE_SESSION_REQUEST,
   S11_CREATE_SESSION_RESPONSE,
@@ -112,6 +111,10 @@ typedef enum {
   N11_SESSION_CREATE_SM_CONTEXT_RESPONSE,
   N11_SESSION_UPDATE_SM_CONTEXT_REQUEST,
   N11_SESSION_UPDATE_SM_CONTEXT_RESPONSE,
+  N11_SESSION_MODIFICATION_REQUEST_SMF_REQUESTED,
+  N11_SESSION_UPDATE_PDU_SESSION_STATUS,
+  N11_SESSION_N1N2_MESSAGE_TRANSFER_RESPONSE_STATUS,
+  NX_SESSION_MODIFICATION_REQUEST_NETWORK_REQUESTED,
   UDP_INIT,
   UDP_DATA_REQ,
   UDP_DATA_IND,

src/oai_smf/nas_sm_encode_to_json.h

-#ifndef _NAS_SM_ENCODE_TO_JSON_H_
-#define _NAS_SM_ENCODE_TO_JSON_H_
-
-int sm_encode_establishment_request(void);
-int sm_encode_establishment_accept(void);
-int sm_encode_establishment_reject(void);
-int sm_encode_authentication_command(void);
-int sm_encode_authentication_complete(void);
-int sm_encode_authentication_result(void);
-int sm_encode_modification_request(void);
-int sm_encode_modification_reject(void);
-int sm_encode_modification_command(void);
-int sm_encode_modification_complete(void);
-int sm_encode_modification_command_reject(void);
-int sm_encode_release_request(void);
-int sm_encode_release_reject(void);
-int sm_encode_release_command(void);
-int sm_encode_release_complete(void);
-int sm_encode__5gsm_status_(void);
-
-int sm_encode_all(void);
-
-#endif