Add missing files: Service Reject

src/nas/msgs/ServiceReject.cpp

+/*
+ * 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 "ServiceReject.hpp"
+
+#include "3gpp_24.501.hpp"
+#include "logger.hpp"
+using namespace nas;
+
+//------------------------------------------------------------------------------
+ServiceReject::ServiceReject()
+    : NasMmPlainHeader(EPD_5GS_MM_MSG, SERVICE_REJECT) {
+  ie_PDU_session_status = std::nullopt;
+  ie_T3346_value        = std::nullopt;
+  ie_eap_message        = std::nullopt;
+  ie_T3448_value        = std::nullopt;
+}
+
+//------------------------------------------------------------------------------
+ServiceReject::~ServiceReject() {}
+
+//------------------------------------------------------------------------------
+void ServiceReject::SetHeader(uint8_t security_header_type) {
+  NasMmPlainHeader::SetSecurityHeaderType(security_header_type);
+}
+
+//------------------------------------------------------------------------------
+void ServiceReject::Set5gmmCause(uint8_t value) {
+  ie_5gmm_cause.SetValue(value);
+}
+
+//------------------------------------------------------------------------------
+uint8_t ServiceReject::Get5GMmCause() {
+  return ie_5gmm_cause.GetValue();
+}
+
+//------------------------------------------------------------------------------
+void ServiceReject::SetPduSessionStatus(uint16_t value) {
+  ie_PDU_session_status = std::make_optional<PDUSessionStatus>(value);
+}
+
+//------------------------------------------------------------------------------
+void ServiceReject::SetT3346Value(uint8_t value) {
+  ie_T3346_value = std::make_optional<GprsTimer2>(kT3346Value, value);
+}
+
+//------------------------------------------------------------------------------
+void ServiceReject::SetEapMessage(bstring eap) {
+  ie_eap_message = std::make_optional<EapMessage>(kIeiEapMessage, eap);
+}
+
+//------------------------------------------------------------------------------
+void ServiceReject::SetT3448Value(uint8_t unit, uint8_t value) {
+  ie_T3448_value =
+      std::make_optional<GprsTimer3>(kIeiGprsTimer3T3448, unit, value);
+}
+
+//------------------------------------------------------------------------------
+int ServiceReject::Encode(uint8_t* buf, int len) {
+  Logger::nas_mm().debug("Encoding Service Reject message");
+  int encoded_size    = 0;
+  int encoded_ie_size = 0;
+  // Header
+  if ((encoded_ie_size = NasMmPlainHeader::Encode(buf, len)) ==
+      KEncodeDecodeError) {
+    Logger::nas_mm().error("Encoding NAS Header error");
+    return KEncodeDecodeError;
+  }
+  encoded_size += encoded_ie_size;
+
+  // 5GMM cause
+  int size = ie_5gmm_cause.Encode(buf + encoded_size, len - encoded_size);
+  if (size != KEncodeDecodeError) {
+    encoded_size += size;
+  } else {
+    Logger::nas_mm().error(
+        "Encoding %s error", _5gmmCause::GetIeName().c_str());
+    return KEncodeDecodeError;
+  }
+
+  // PDU session status
+  if (!ie_PDU_session_status.has_value()) {
+    Logger::nas_mm().debug(
+        "IE %s is not available", PDUSessionStatus::GetIeName().c_str());
+  } else {
+    encoded_ie_size = ie_PDU_session_status.value().Encode(
+        buf + encoded_size, len - encoded_size);
+    if (encoded_ie_size != KEncodeDecodeError) {
+      encoded_size += encoded_ie_size;
+    } else {
+      Logger::nas_mm().error(
+          "Encoding %s error", PDUSessionStatus::GetIeName().c_str());
+      return KEncodeDecodeError;
+    }
+  }
+
+  // T3346 value
+  if (!ie_T3346_value.has_value()) {
+    Logger::nas_mm().debug(
+        "IE %s is not available", GprsTimer2::GetIeName().c_str());
+  } else {
+    if (int size = ie_T3346_value.value().Encode(
+            buf + encoded_size, len - encoded_size)) {
+      encoded_size += size;
+    } else {
+      Logger::nas_mm().error(
+          "Encoding %s error", GprsTimer2::GetIeName().c_str());
+      return KEncodeDecodeError;
+    }
+  }
+
+  // EAP message
+  if (!ie_eap_message.has_value()) {
+    Logger::nas_mm().debug(
+        "IE %s is not available", EapMessage::GetIeName().c_str());
+  } else {
+    encoded_ie_size =
+        ie_eap_message.value().Encode(buf + encoded_size, len - encoded_size);
+    if (encoded_ie_size != KEncodeDecodeError) {
+      encoded_size += encoded_ie_size;
+    } else {
+      Logger::nas_mm().error(
+          "Encoding %s error", EapMessage::GetIeName().c_str());
+      return KEncodeDecodeError;
+    }
+  }
+
+  // T3448 value
+  if (!ie_T3448_value.has_value()) {
+    Logger::nas_mm().debug(
+        "IE %s is not available", GprsTimer3::GetIeName().c_str());
+  } else {
+    encoded_ie_size =
+        ie_T3448_value.value().Encode(buf + encoded_size, len - encoded_size);
+    if (encoded_ie_size != KEncodeDecodeError) {
+      encoded_size += encoded_ie_size;
+    } else {
+      Logger::nas_mm().error(
+          "Encoding %s error", GprsTimer3::GetIeName().c_str());
+      return KEncodeDecodeError;
+    }
+  }
+
+  Logger::nas_mm().debug(
+      "Encoded Service Reject message len (%d)", encoded_size);
+  return encoded_size;
+}
+
+//------------------------------------------------------------------------------
+int ServiceReject::Decode(uint8_t* buf, int len) {
+  Logger::nas_mm().debug("Decoding RegistrationAccept message");
+  int decoded_size   = 0;
+  int decoded_result = 0;
+
+  // Header
+  decoded_result = NasMmPlainHeader::Decode(buf, len);
+  if (decoded_result == KEncodeDecodeError) {
+    Logger::nas_mm().error("Decoding NAS Header error");
+    return KEncodeDecodeError;
+  }
+  decoded_size += decoded_result;
+
+  // 5GMM Cause
+  decoded_result =
+      ie_5gmm_cause.Decode(buf + decoded_size, len - decoded_size, false);
+  if (decoded_result == KEncodeDecodeError) {
+    Logger::nas_mm().error(
+        "Decoding %s error", _5gmmCause::GetIeName().c_str());
+    return KEncodeDecodeError;
+  }
+  decoded_size += decoded_result;
+  Logger::nas_mm().debug("Decoded_size(%d)", decoded_size);
+
+  // Decode other IEs
+  uint8_t octet = 0x00;
+  DECODE_U8_VALUE(buf + decoded_size, octet);
+  Logger::nas_mm().debug("First option IEI (0x%x)", octet);
+
+  while ((octet != 0x0)) {
+    Logger::nas_mm().debug("Decoding IEI 0x%x", octet);
+    switch (octet) {
+      case kIeiPduSessionStatus: {
+        Logger::nas_mm().debug("Decoding IEI 0x%x", kIeiPduSessionStatus);
+        PDUSessionStatus ie_PDU_session_status_tmp = {};
+        if ((decoded_result = ie_PDU_session_status_tmp.Decode(
+                 buf + decoded_size, len - decoded_size, true)) ==
+            KEncodeDecodeError)
+          return decoded_result;
+        decoded_size += decoded_result;
+        ie_PDU_session_status =
+            std::optional<PDUSessionStatus>(ie_PDU_session_status_tmp);
+        DECODE_U8_VALUE(buf + decoded_size, octet);
+        Logger::nas_mm().debug("Next IEI (0x%x)", octet);
+      } break;
+
+      case kT3346Value: {
+        Logger::nas_mm().debug("Decoding IEI 0x5F: T3346 Value");
+        GprsTimer2 ie_T3346_value_tmp(kT3346Value);
+        if ((decoded_result = ie_T3346_value_tmp.Decode(
+                 buf + decoded_size, len - decoded_size, true)) ==
+            KEncodeDecodeError)
+          return decoded_result;
+        decoded_size += decoded_result;
+        ie_T3346_value = std::optional<GprsTimer2>(ie_T3346_value_tmp);
+        DECODE_U8_VALUE(buf + decoded_size, octet);
+        Logger::nas_mm().debug("Next IEI (0x%x)", octet);
+      } break;
+
+      case kIeiEapMessage: {
+        Logger::nas_mm().debug("Decoding IEI (0x78)");
+        EapMessage ie_eap_message_tmp = {};
+        if ((decoded_result = ie_eap_message_tmp.Decode(
+                 buf + decoded_size, len - decoded_size, true)) ==
+            KEncodeDecodeError)
+          return decoded_result;
+        decoded_size += decoded_result;
+        ie_eap_message = std::optional<EapMessage>(ie_eap_message_tmp);
+        DECODE_U8_VALUE(buf + decoded_size, octet);
+        Logger::nas_mm().debug("Next IEI (0x%x)", octet);
+      } break;
+
+      case kIeiGprsTimer3T3448: {
+        Logger::nas_mm().debug("Decoding IEI 0x%x", kIeiGprsTimer3T3448);
+        GprsTimer3 ie_T3448_value_tmp(kIeiGprsTimer3T3448);
+        if ((decoded_result = ie_T3448_value_tmp.Decode(
+                 buf + decoded_size, len - decoded_size, true)) ==
+            KEncodeDecodeError)
+          return decoded_result;
+        decoded_size += decoded_result;
+        ie_T3448_value = std::optional<GprsTimer3>(ie_T3448_value_tmp);
+        DECODE_U8_VALUE(buf + decoded_size, octet);
+        Logger::nas_mm().debug("Next IEI (0x%x)", octet);
+      } break;
+
+      default: {
+        Logger::nas_mm().warn("Unknown IEI 0x%x, stop decoding...", octet);
+        // Stop decoding
+        octet = 0x00;
+      } break;
+    }
+  }
+  Logger::nas_mm().debug(
+      "Decoded Service Reject message len (%d)", decoded_size);
+  return decoded_size;
+}

src/nas/msgs/ServiceReject.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
+ */
+
+#ifndef _SERVICE_REJECT_H_
+
+#define _SERVICE_REJECT_H_
+
+#include <stdint.h>
+#include <string>
+
+#include "NasIeHeader.hpp"
+
+namespace nas {
+
+class ServiceReject : public NasMmPlainHeader {
+ public:
+  ServiceReject();
+  ~ServiceReject();
+
+  void SetHeader(uint8_t security_header_type);
+
+  int Encode(uint8_t* buf, int len);
+  int Decode(uint8_t* buf, int len);
+
+  void Set5gmmCause(uint8_t value);
+  uint8_t Get5GMmCause();
+
+  void SetPduSessionStatus(uint16_t value);
+  // TODO: Get
+
+  void SetT3346Value(uint8_t value);
+  // TODO: Get
+
+  void SetEapMessage(bstring eap);
+  // TODO: Get
+
+  void SetT3448Value(uint8_t unit, uint8_t value);
+  // TODO: Get
+
+ private:
+  _5gmmCause ie_5gmm_cause;  // Mandatory
+
+  std::optional<PDUSessionStatus> ie_PDU_session_status;  // Optional
+  std::optional<GprsTimer2> ie_T3346_value;               // Optional
+  std::optional<EapMessage> ie_eap_message;               // Optional
+  std::optional<GprsTimer3> ie_T3448_value;               // Optional
+};
+
+}  // namespace nas
+
+#endif