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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "TLVEncoder.h"
#include "TLVDecoder.h"
#include "ModifyEpsBearerContextReject.h"
int decode_modify_eps_bearer_context_reject(modify_eps_bearer_context_reject_msg *modify_eps_bearer_context_reject, 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, MODIFY_EPS_BEARER_CONTEXT_REJECT_MINIMUM_LENGTH, len);
/* Decoding mandatory fields */
if ((decoded_result = decode_esm_cause(&modify_eps_bearer_context_reject->esmcause, 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 MODIFY_EPS_BEARER_CONTEXT_REJECT_PROTOCOL_CONFIGURATION_OPTIONS_IEI:
if ((decoded_result =
decode_protocol_configuration_options(&modify_eps_bearer_context_reject->protocolconfigurationoptions,
MODIFY_EPS_BEARER_CONTEXT_REJECT_PROTOCOL_CONFIGURATION_OPTIONS_IEI,
buffer + decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
modify_eps_bearer_context_reject->presencemask |= MODIFY_EPS_BEARER_CONTEXT_REJECT_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT;
break;
default:
errorCodeDecoder = TLV_DECODE_UNEXPECTED_IEI;
return TLV_DECODE_UNEXPECTED_IEI;
}
}
return decoded;
}
int encode_modify_eps_bearer_context_reject(modify_eps_bearer_context_reject_msg *modify_eps_bearer_context_reject, uint8_t *buffer, uint32_t len)
{
int encoded = 0;
int encode_result = 0;
/* Checking IEI and pointer */
CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, MODIFY_EPS_BEARER_CONTEXT_REJECT_MINIMUM_LENGTH, len);
if ((encode_result =
encode_esm_cause(&modify_eps_bearer_context_reject->esmcause, 0,
buffer + encoded, len - encoded)) < 0) //Return in case of error
return encode_result;
else
encoded += encode_result;
if ((modify_eps_bearer_context_reject->presencemask & MODIFY_EPS_BEARER_CONTEXT_REJECT_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT)
== MODIFY_EPS_BEARER_CONTEXT_REJECT_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT)
{
if ((encode_result =
encode_protocol_configuration_options(&modify_eps_bearer_context_reject->protocolconfigurationoptions,
MODIFY_EPS_BEARER_CONTEXT_REJECT_PROTOCOL_CONFIGURATION_OPTIONS_IEI,
buffer + encoded, len - encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
return encoded;
}