Update GPRS Timer 3

src/nas/common/Ie_Const.hpp

@@ -119,6 +119,11 @@ constexpr uint8_t kT3346Value          = 0x5f;
 
 constexpr uint8_t kIeiEpsBearerContextStatus = 0x60;
 constexpr uint8_t kIeiRejectedNssaiRr        = 0x69;
+constexpr uint8_t kIeiGprsTimer3T3324        = 0x6A;
+constexpr uint8_t kIeiGprsTimer3T3348        = 0x6B;
+constexpr uint8_t kIeiGprsTimer3T3447        = 0x6C;
+constexpr uint8_t kIeiGprsTimer3T3512        = 0x5E;
+constexpr uint8_t kIeiGprsTimer3BackOffTimer = 0x37;
 
 constexpr uint8_t kIeiEpsNasMessageContainer                 = 0x70;
 constexpr uint8_t kIeiNasMessageContainer                    = 0x71;

src/nas/ies/GPRS_Timer_3.cpp

@@ -19,98 +19,94 @@
  *      contact@openairinterface.org
  */
 
-/*! \file
- \brief
- \author  Keliang DU, BUPT
- \date 2020
- \email: contact@openairinterface.org
- */
-
 #include "GPRS_Timer_3.hpp"
 
-#include "logger.hpp"
 using namespace nas;
 
 //------------------------------------------------------------------------------
-GPRS_Timer_3::GPRS_Timer_3(uint8_t iei) {
-  _iei   = iei;
-  UNIT   = 0;
-  _value = 0;
+GPRS_Timer_3::GPRS_Timer_3(uint8_t iei) : Type4NasIe(iei), unit_(), value_() {
+  SetLengthIndicator(1);
+  SetIeName(kGprsTimer3IeName);
 }
 
 //------------------------------------------------------------------------------
-GPRS_Timer_3::GPRS_Timer_3(const uint8_t iei, uint8_t unit, uint8_t value) {
-  _iei   = iei;
-  UNIT   = unit;
-  _value = value;
+GPRS_Timer_3::GPRS_Timer_3(const uint8_t iei, uint8_t unit, uint8_t value)
+    : Type4NasIe(iei) {
+  unit_  = unit;
+  value_ = value;
+  SetLengthIndicator(1);
+  SetIeName(kGprsTimer3IeName);
 }
 
-//------------------------------------------------------------------------------
-GPRS_Timer_3::GPRS_Timer_3() : _iei(), UNIT(), _value() {}
-
 //------------------------------------------------------------------------------
 GPRS_Timer_3::~GPRS_Timer_3() {}
 
 //------------------------------------------------------------------------------
 void GPRS_Timer_3::setValue(uint8_t unit, uint8_t value) {
-  UNIT   = unit;
-  _value = value;
+  unit_  = unit;
+  value_ = value;
 }
 
 //------------------------------------------------------------------------------
-uint8_t GPRS_Timer_3::getUnit() {
-  return UNIT;
+uint8_t GPRS_Timer_3::getUnit() const {
+  return unit_;
 }
 
 //------------------------------------------------------------------------------
-uint8_t GPRS_Timer_3::getValue() {
-  return _value;
+uint8_t GPRS_Timer_3::getValue() const {
+  return value_;
 }
 
 //------------------------------------------------------------------------------
 int GPRS_Timer_3::Encode(uint8_t* buf, int len) {
-  Logger::nas_mm().debug("Encoding GPRS_Timer_3 IEI (0x%x)", _iei);
-  if (len < 3) {
-    Logger::nas_mm().error("len is less than 3");
-    return 0;
+  Logger::nas_mm().debug("Encoding %s", GetIeName().c_str());
+  int ie_len = GetIeLength();
+
+  if (len < ie_len) {
+    Logger::nas_mm().error("Len is less than %d", ie_len);
+    return KEncodeDecodeError;
   }
-  uint8_t octet    = 0;
+
   int encoded_size = 0;
-  octet            = (UNIT << 5) | (_value & 0x1f);
-  if (_iei) {
-    *(buf + encoded_size) = _iei;
-    encoded_size++;
-    *(buf + encoded_size) = 1;
-    encoded_size++;
-    *(buf + encoded_size) = octet;
-    encoded_size++;
-    Logger::nas_mm().debug("Encoded GPRS_Timer_3 content (0x%x)", octet);
-  } else {
-    *(buf + encoded_size) = 1;
-    encoded_size++;
-    *(buf + encoded_size) = octet;
-    encoded_size++;
-  }
-  Logger::nas_mm().debug("Encoded GPRS_Timer_3 len (%d)", encoded_size);
+  // IEI and Length
+  int encoded_header_size = Type4NasIe::Encode(buf + encoded_size, len);
+  if (encoded_header_size == KEncodeDecodeError) return KEncodeDecodeError;
+  encoded_size += encoded_header_size;
+
+  // Octet 3
+  uint8_t octet = (unit_ << 5) | (value_ & 0x1f);
+  ENCODE_U8(buf + encoded_size, octet, encoded_size);
+
+  Logger::nas_mm().debug(
+      "Encoded %s, len (%d)", GetIeName().c_str(), encoded_size);
   return encoded_size;
 }
 
 //------------------------------------------------------------------------------
-int GPRS_Timer_3::Decode(uint8_t* buf, int len, bool is_option) {
-  Logger::nas_mm().debug("Decoding GPRS_Timer_3 IEI (0x%x)", *buf);
-  int decoded_size = 0;
-  if (is_option) {
-    _iei = *buf;
-    decoded_size++;
+int GPRS_Timer_3::Decode(uint8_t* buf, int len, bool is_iei) {
+  if (len < kGprsTimer3Length) {
+    Logger::nas_mm().error(
+        "Buffer length is less than the minimum length of this IE (%d octet)",
+        kGprsTimer3Length);
+    return KEncodeDecodeError;
   }
+
+  uint8_t decoded_size = 0;
   uint8_t octet        = 0;
-  //	length = *(buf + decoded_size);
-  decoded_size++;
-  octet = *(buf + decoded_size);
-  decoded_size++;
-  UNIT   = (octet & 0xe0) >> 5;
-  _value = octet & 0x1f;
-  Logger::nas_mm().debug("Decoded GPRS_Timer_3 content (0x%x)", octet);
-  Logger::nas_mm().debug("Decoded GPRS_Timer_3 len (%d)", decoded_size);
+  Logger::nas_mm().debug("Decoding %s", GetIeName().c_str());
+
+  // IEI and Length
+  int decoded_header_size = Type4NasIe::Decode(buf + decoded_size, len, is_iei);
+  if (decoded_header_size == KEncodeDecodeError) return KEncodeDecodeError;
+  decoded_size += decoded_header_size;
+
+  DECODE_U8(buf + decoded_size, octet, decoded_size);
+  unit_  = (octet & 0xe0) >> 5;
+  value_ = octet & 0x1f;
+
+  Logger::nas_mm().debug(
+      "Decoded %s, Unit 0x%x, Value 0x%x", GetIeName().c_str(), unit_, value_);
+  Logger::nas_mm().debug(
+      "Decoded %s, len (%d)", GetIeName().c_str(), decoded_size);
   return decoded_size;
 }

src/nas/ies/GPRS_Timer_3.hpp

@@ -19,36 +19,33 @@
  *      contact@openairinterface.org
  */
 
-/*! \file
- \brief
- \author  Keliang DU, BUPT
- \date 2020
- \email: contact@openairinterface.org
- */
-
-#ifndef __GPRS_Timer_3_H_
-#define __GPRS_Timer_3_H_
+#ifndef _GPRS_TIMER_3_H_
+#define _GPRS_TIMER_3_H_
 
+#include "Type4NasIe.hpp"
 #include <stdint.h>
 
+constexpr uint8_t kGprsTimer3Length = 3;
+constexpr auto kGprsTimer3IeName    = "GPRS Timer 3";
+
 namespace nas {
 
-class GPRS_Timer_3 {
+class GPRS_Timer_3 : public Type4NasIe {
  public:
-  GPRS_Timer_3();
   GPRS_Timer_3(uint8_t iei);
-  GPRS_Timer_3(const uint8_t iei, uint8_t unit, uint8_t value);
+  GPRS_Timer_3(uint8_t iei, uint8_t unit, uint8_t value);
   ~GPRS_Timer_3();
+
   int Encode(uint8_t* buf, int len);
   int Decode(uint8_t* buf, int len, bool is_option);
+
   void setValue(uint8_t unit, uint8_t value);
-  uint8_t getValue();
-  uint8_t getUnit();
+  uint8_t getValue() const;
+  uint8_t getUnit() const;
 
  private:
-  uint8_t _iei;
-  uint8_t UNIT;
-  uint8_t _value;
+  uint8_t unit_;
+  uint8_t value_;
 };
 }  // namespace nas
 

src/nas/ies/NasIe.hpp

@@ -22,6 +22,11 @@
 #ifndef _NAS_IE_H_
 #define _NAS_IE_H_
 
+#include "3gpp_24.501.hpp"
+#include "common_defs.h"
+#include "Ie_Const.hpp"
+#include "logger.hpp"
+
 #include <optional>
 
 namespace nas {

src/nas/msgs/DLNASTransport.cpp

@@ -219,7 +219,7 @@ int DLNASTransport::Decode(NasMmPlainHeader* header, uint8_t* buf, int len) {
       } break;
       case 0x37: {
         Logger::nas_mm().debug("Decoding IEI (0x37)");
-        ie_back_off_timer_value = new GPRS_Timer_3();
+        ie_back_off_timer_value = new GPRS_Timer_3(kIeiGprsTimer3BackOffTimer);
         decoded_size += ie_back_off_timer_value->Decode(
             buf + decoded_size, len - decoded_size, true);
         octet = *(buf + decoded_size);

src/nas/msgs/RegistrationAccept.cpp

@@ -202,13 +202,14 @@ void RegistrationAccept::setLADN_Information(std::vector<bstring> ladnValue) {
 
 //------------------------------------------------------------------------------
 void RegistrationAccept::setNetwork_Slicing_Indication(bool dcni, bool nssci) {
-  ie_network_slicing_indication =
-      std::make_optional<NetworkSlicingIndication>(0x09, dcni, nssci);
+  ie_network_slicing_indication = std::make_optional<NetworkSlicingIndication>(
+      kIeiNetworkSlicingIndication, dcni, nssci);
 }
 
 //------------------------------------------------------------------------------
 void RegistrationAccept::setT3512_Value(uint8_t unit, uint8_t value) {
-  ie_T3512_value = std::make_optional<GPRS_Timer_3>(0x5E, unit, value);
+  ie_T3512_value =
+      std::make_optional<GPRS_Timer_3>(kIeiGprsTimer3T3512, unit, value);
 }
 
 //------------------------------------------------------------------------------
@@ -661,8 +662,9 @@ int RegistrationAccept::Decode(uint8_t* buf, int len) {
         octet = *(buf + decoded_size);
         Logger::nas_mm().debug("Next IEI (0x%x)", octet);
       } break;
-      case 0x9: {
-        Logger::nas_mm().debug("Decoding IEI (0x9)");
+      case kIeiNetworkSlicingIndication: {
+        Logger::nas_mm().debug(
+            "Decoding IEI 0x%x9", kIeiNetworkSlicingIndication);
         NetworkSlicingIndication ie_network_slicing_indication_tmp = {};
         decoded_size += ie_network_slicing_indication_tmp.Decode(
             buf + decoded_size, len - decoded_size, true);
@@ -788,9 +790,9 @@ int RegistrationAccept::Decode(uint8_t* buf, int len) {
          Logger::nas_mm().debug("Next IEI 0x%x", octet);
        } break;
        */
-      case 0x5E: {
-        Logger::nas_mm().debug("Decoding IEI (0x5E)");
-        GPRS_Timer_3 ie_T3512_value_tmp = {};
+      case kIeiGprsTimer3T3512: {
+        Logger::nas_mm().debug("Decoding IEI 0x%x", kIeiGprsTimer3T3512);
+        GPRS_Timer_3 ie_T3512_value_tmp(kIeiGprsTimer3T3512);
         decoded_size += ie_T3512_value_tmp.Decode(
             buf + decoded_size, len - decoded_size, true);
         ie_T3512_value = std::optional<GPRS_Timer_3>(ie_T3512_value_tmp);
@@ -865,27 +867,27 @@ int RegistrationAccept::Decode(uint8_t* buf, int len) {
         octet = *(buf + decoded_size);
         Logger::nas_mm().debug("Next IEI (0x%x)", octet);
       } break;
-      case 0x6C: {
-        Logger::nas_mm().debug("Decoding IEI (0x6C)");
-        GPRS_Timer_3 ie_T3447_value_tmp = {};
+      case kIeiGprsTimer3T3447: {
+        Logger::nas_mm().debug("Decoding IEI 0x%x", kIeiGprsTimer3T3447);
+        GPRS_Timer_3 ie_T3447_value_tmp(kIeiGprsTimer3T3447);
         decoded_size += ie_T3447_value_tmp.Decode(
             buf + decoded_size, len - decoded_size, true);
         ie_T3447_value = std::optional<GPRS_Timer_3>(ie_T3447_value_tmp);
         octet          = *(buf + decoded_size);
         Logger::nas_mm().debug("Next IEI (0x%x)", octet);
       } break;
-      case 0x6B: {
-        Logger::nas_mm().debug("Decoding IEI (0x6B)");
-        GPRS_Timer_3 ie_T3448_value_tmp = {};
+      case kIeiGprsTimer3T3348: {
+        Logger::nas_mm().debug("Decoding IEI 0x%x", kIeiGprsTimer3T3348);
+        GPRS_Timer_3 ie_T3448_value_tmp(kIeiGprsTimer3T3348);
         decoded_size += ie_T3448_value_tmp.Decode(
             buf + decoded_size, len - decoded_size, true);
         ie_T3448_value = std::optional<GPRS_Timer_3>(ie_T3448_value_tmp);
         octet          = *(buf + decoded_size);
         Logger::nas_mm().debug("Next IEI (0x%x)", octet);
       } break;
-      case 0x6A: {
-        Logger::nas_mm().debug("Decoding IEI (0x6A)");
-        GPRS_Timer_3 ie_T3324_value_tmp = {};
+      case kIeiGprsTimer3T3324: {
+        Logger::nas_mm().debug("Decoding IEI 0x%x", kIeiGprsTimer3T3324);
+        GPRS_Timer_3 ie_T3324_value_tmp(kIeiGprsTimer3T3324);
         decoded_size += ie_T3324_value_tmp.Decode(
             buf + decoded_size, len - decoded_size, true);
         ie_T3324_value = std::optional<GPRS_Timer_3>(ie_T3324_value_tmp);