text: /*
   * 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 <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <stdint.h>
  
  
  #include "TLVEncoder.h"
  #include "TLVDecoder.h"
  #include "ActivateDefaultEpsBearerContextRequest.h"
  
  int decode_activate_default_eps_bearer_context_request(activate_default_eps_bearer_context_request_msg *activate_default_eps_bearer_context_request, uint8_t *buffer, uint32_t len)
  {
    uint32_t decoded = 0;
    int decoded_result = 0;
  
    // Check if we got a NULL pointer and if buffer length is >= minimum length expected for the message.
    CHECK_PDU_POINTER_AND_LENGTH_DECODER(buffer, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_MINIMUM_LENGTH, len);
  
    /* Decoding mandatory fields */
    if ((decoded_result = decode_eps_quality_of_service(&activate_default_eps_bearer_context_request->epsqos, 0, buffer + decoded, len - decoded)) < 0)
      return decoded_result;
    else
      decoded += decoded_result;
  
    if ((decoded_result = decode_access_point_name(&activate_default_eps_bearer_context_request->accesspointname, 0, buffer + decoded, len - decoded)) < 0)
      return decoded_result;
    else
      decoded += decoded_result;
  
    if ((decoded_result = decode_pdn_address(&activate_default_eps_bearer_context_request->pdnaddress, 0, buffer + decoded, len - decoded)) < 0)
      return decoded_result;
    else
      decoded += decoded_result;
  
    /* Decoding optional fields */
    while(len - decoded > 0) {
      uint8_t ieiDecoded = *(buffer + decoded);
  
      /* Type | value iei are below 0x80 so just return the first 4 bits */
      if (ieiDecoded >= 0x80)
        ieiDecoded = ieiDecoded & 0xf0;
  
      switch(ieiDecoded) {
      case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_IEI:
        if ((decoded_result =
               decode_transaction_identifier(&activate_default_eps_bearer_context_request->transactionidentifier,
                                             ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_IEI,
                                             buffer + decoded, len - decoded)) <= 0)
          return decoded_result;
  
        decoded += decoded_result;
        /* Set corresponding mask to 1 in presencemask */
        activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_PRESENT;
        break;
  
      case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_IEI:
        if ((decoded_result =
               decode_quality_of_service(&activate_default_eps_bearer_context_request->negotiatedqos,
                                         ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_IEI,
                                         buffer + decoded, len - decoded)) <= 0)
          return decoded_result;
  
        decoded += decoded_result;
        /* Set corresponding mask to 1 in presencemask */
        activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_PRESENT;
        break;
  
      case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_IEI:
        if ((decoded_result =
               decode_llc_service_access_point_identifier(&activate_default_eps_bearer_context_request->negotiatedllcsapi,
                   ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_IEI,
                   buffer + decoded, len - decoded)) <= 0)
          return decoded_result;
  
        decoded += decoded_result;
        /* Set corresponding mask to 1 in presencemask */
        activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_PRESENT;
        break;
  
      case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_IEI:
        if ((decoded_result =
               decode_radio_priority(&activate_default_eps_bearer_context_request->radiopriority,
                                     ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_IEI,
                                     buffer + decoded, len - decoded)) <= 0)
          return decoded_result;
  
        decoded += decoded_result;
        /* Set corresponding mask to 1 in presencemask */
        activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_PRESENT;
        break;
  
      case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_IEI:
        if ((decoded_result =
               decode_packet_flow_identifier(&activate_default_eps_bearer_context_request->packetflowidentifier,
                                             ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_IEI,
                                             buffer + decoded, len - decoded)) <= 0)
          return decoded_result;
  
        decoded += decoded_result;
        /* Set corresponding mask to 1 in presencemask */
        activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_PRESENT;
        break;
  
      case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_IEI:
        if ((decoded_result =
               decode_apn_aggregate_maximum_bit_rate(&activate_default_eps_bearer_context_request->apnambr,
                   ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_IEI,
                   buffer + decoded, len - decoded)) <= 0)
          return decoded_result;
  
        decoded += decoded_result;
        /* Set corresponding mask to 1 in presencemask */
        activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_PRESENT;
        break;
  
      case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_IEI:
        if ((decoded_result =
               decode_esm_cause(&activate_default_eps_bearer_context_request->esmcause,
                                ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_IEI,
                                buffer + decoded, len - decoded)) <= 0)
          return decoded_result;
  
        decoded += decoded_result;
        /* Set corresponding mask to 1 in presencemask */
        activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_PRESENT;
        break;
  
      case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_IEI:
        if ((decoded_result =
               decode_protocol_configuration_options(&activate_default_eps_bearer_context_request->protocolconfigurationoptions,
                   ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_IEI,
                   buffer + decoded, len - decoded)) <= 0)
          return decoded_result;
  
        decoded += decoded_result;
        /* Set corresponding mask to 1 in presencemask */
        activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT;
        break;
  
      default:
        errorCodeDecoder = TLV_DECODE_UNEXPECTED_IEI;
        return TLV_DECODE_UNEXPECTED_IEI;
      }
    }
  
    return decoded;
  }
  
  int encode_activate_default_eps_bearer_context_request(activate_default_eps_bearer_context_request_msg *activate_default_eps_bearer_context_request, uint8_t *buffer, uint32_t len)
  {
    int encoded = 0;
    int encode_result = 0;
  
    /* Checking IEI and pointer */
    CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_MINIMUM_LENGTH, len);
  
    if ((encode_result =
           encode_eps_quality_of_service(&activate_default_eps_bearer_context_request->epsqos,
                                         0, buffer + encoded, len - encoded)) < 0) {       //Return in case of error
      LOG_TRACE(ERROR, "ESM  ENCODE epsqos");
      return encode_result;
    } else
      encoded += encode_result;
  
    if ((encode_result =
           encode_access_point_name(&activate_default_eps_bearer_context_request->accesspointname,
                                    0, buffer + encoded, len - encoded)) < 0) {       //Return in case of error
      LOG_TRACE(ERROR, "ESM  ENCODE accesspointname");
      return encode_result;
    } else
      encoded += encode_result;
  
    if ((encode_result =
           encode_pdn_address(&activate_default_eps_bearer_context_request->pdnaddress,
                              0, buffer + encoded, len - encoded)) < 0) {       //Return in case of error
      LOG_TRACE(ERROR, "ESM  ENCODE pdnaddress");
      return encode_result;
    } else
      encoded += encode_result;
  
    if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_PRESENT)
        == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_PRESENT) {
      if ((encode_result =
             encode_transaction_identifier(&activate_default_eps_bearer_context_request->transactionidentifier,
                                           ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_IEI,
                                           buffer + encoded, len - encoded)) < 0) {
        LOG_TRACE(ERROR, "ESM  ENCODE transactionidentifier");
        // Return in case of error
        return encode_result;
      } else
        encoded += encode_result;
    }
  
    if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_PRESENT)
        == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_PRESENT) {
      if ((encode_result =
             encode_quality_of_service(&activate_default_eps_bearer_context_request->negotiatedqos,
                                       ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_IEI,
                                       buffer + encoded, len - encoded)) < 0) {
        LOG_TRACE(ERROR, "ESM  ENCODE negotiatedqos");
        // Return in case of error
        return encode_result;
      } else
        encoded += encode_result;
    }
  
    if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_PRESENT)
        == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_PRESENT) {
      if ((encode_result =
             encode_llc_service_access_point_identifier(&activate_default_eps_bearer_context_request->negotiatedllcsapi,
                 ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_IEI,
                 buffer + encoded, len - encoded)) < 0) {
        LOG_TRACE(ERROR, "ESM  ENCODE negotiatedllcsapi");
        // Return in case of error
        return encode_result;
      } else
        encoded += encode_result;
    }
  
    if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_PRESENT)
        == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_PRESENT) {
      if ((encode_result =
             encode_radio_priority(&activate_default_eps_bearer_context_request->radiopriority,
                                   ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_IEI,
                                   buffer + encoded, len - encoded)) < 0) {
        LOG_TRACE(ERROR, "ESM  ENCODE radiopriority");
        // Return in case of error
        return encode_result;
      } else
        encoded += encode_result;
    }
  
    if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_PRESENT)
        == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_PRESENT) {
      if ((encode_result =
             encode_packet_flow_identifier(&activate_default_eps_bearer_context_request->packetflowidentifier,
                                           ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_IEI,
                                           buffer + encoded, len - encoded)) < 0) {
        LOG_TRACE(ERROR, "ESM  ENCODE packetflowidentifier");
        // Return in case of error
        return encode_result;
      } else
        encoded += encode_result;
    }
  
    if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_PRESENT)
        == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_PRESENT) {
      if ((encode_result =
             encode_apn_aggregate_maximum_bit_rate(&activate_default_eps_bearer_context_request->apnambr,
                 ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_IEI, buffer +
                 encoded, len - encoded)) < 0) {
        LOG_TRACE(ERROR, "ESM  ENCODE apnambr");
        // Return in case of error
        return encode_result;
      } else
        encoded += encode_result;
    }
  
    if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_PRESENT)
        == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_PRESENT) {
      if ((encode_result =
             encode_esm_cause(&activate_default_eps_bearer_context_request->esmcause,
                              ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_IEI, buffer
                              + encoded, len - encoded)) < 0) {
        LOG_TRACE(ERROR, "ESM  ENCODE esmcause");
        // Return in case of error
        return encode_result;
      } else
        encoded += encode_result;
    }
  
    if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT)
        == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT) {
      if ((encode_result =
             encode_protocol_configuration_options(&activate_default_eps_bearer_context_request->protocolconfigurationoptions,
                 ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_IEI,
                 buffer + encoded, len - encoded)) < 0) {
        LOG_TRACE(ERROR, "ESM  ENCODE protocolconfigurationoptions");
        // Return in case of error
        return encode_result;
      } else
        encoded += encode_result;
    }
  
    LOG_TRACE(INFO, "ESM  ENCODED activate_default_eps_bearer_context_request");
    return encoded;
  }
  
  