forked from acouzens/open5gs
228 lines
7 KiB
C
228 lines
7 KiB
C
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#include "core_debug.h"
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#include "s1ap_codecs.h"
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void free_wrapper(void *ptr)
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{
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free(ptr);
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ptr = NULL;
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}
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static status_t s1ap_decode_initiating(s1ap_message *message,
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S1ap_InitiatingMessage_t *initiating_p)
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{
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status_t ret;
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char *message_string = NULL;
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d_assert(initiating_p != NULL, return -1, "Null param");
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message_string = calloc (10000, sizeof (char));
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s1ap_string_total_size = 0;
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switch (initiating_p->procedureCode)
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{
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case S1ap_ProcedureCode_id_uplinkNASTransport:
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{
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ret = s1ap_decode_s1ap_uplinknastransport_ies(
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&message->msg.s1ap_UplinkNASTransport_IEs,
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&initiating_p->value);
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s1ap_xer_print_s1ap_uplinknastransport(s1ap_xer__print2sp,
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message_string, message);
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}
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break;
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case S1ap_ProcedureCode_id_S1Setup:
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{
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ret = s1ap_decode_s1ap_s1setuprequesties(
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&message->msg.s1ap_S1SetupRequestIEs,
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&initiating_p->value);
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s1ap_xer_print_s1ap_s1setuprequest(s1ap_xer__print2sp,
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message_string, message);
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}
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break;
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case S1ap_ProcedureCode_id_initialUEMessage:
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{
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ret = s1ap_decode_s1ap_initialuemessage_ies(
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&message->msg.s1ap_InitialUEMessage_IEs,
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&initiating_p->value);
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s1ap_xer_print_s1ap_initialuemessage(s1ap_xer__print2sp,
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message_string, message);
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}
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break;
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case S1ap_ProcedureCode_id_UEContextReleaseRequest:
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{
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ret = s1ap_decode_s1ap_uecontextreleaserequest_ies(
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&message->msg.s1ap_UEContextReleaseRequest_IEs, &initiating_p->value);
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s1ap_xer_print_s1ap_uecontextreleaserequest(
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s1ap_xer__print2sp, message_string, message);
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}
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break;
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case S1ap_ProcedureCode_id_UECapabilityInfoIndication:
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{
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ret = s1ap_decode_s1ap_uecapabilityinfoindicationies(
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&message->msg.s1ap_UECapabilityInfoIndicationIEs,
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&initiating_p->value);
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s1ap_xer_print_s1ap_uecapabilityinfoindication(
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s1ap_xer__print2sp, message_string, message);
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}
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break;
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case S1ap_ProcedureCode_id_NASNonDeliveryIndication:
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{
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ret = s1ap_decode_s1ap_nasnondeliveryindication_ies(
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&message->msg.s1ap_NASNonDeliveryIndication_IEs,
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&initiating_p->value);
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s1ap_xer_print_s1ap_nasnondeliveryindication(
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s1ap_xer__print2sp, message_string, message);
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}
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break;
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default:
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{
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d_error("Unknown procedure ID (%d) for initiating message\n",
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(int)initiating_p->procedureCode);
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d_assert(0, return CORE_ERROR,
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"Unknown procedure ID (%d) for initiating message\n",
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(int)initiating_p->procedureCode);
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}
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break;
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}
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printf("%s\n", message_string);
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free_wrapper (message_string);
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return ret;
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}
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static status_t s1ap_decode_successfull_outcome(s1ap_message *message,
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S1ap_SuccessfulOutcome_t *successfullOutcome_p)
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{
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status_t ret = CORE_ERROR;
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char *message_string = NULL;
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d_assert(successfullOutcome_p != NULL, return -1, "Null param");
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message_string = calloc (10000, sizeof (char));
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s1ap_string_total_size = 0;
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switch (successfullOutcome_p->procedureCode)
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{
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case S1ap_ProcedureCode_id_InitialContextSetup:
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{
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ret = s1ap_decode_s1ap_initialcontextsetupresponseies(
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&message->msg.s1ap_InitialContextSetupResponseIEs,
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&successfullOutcome_p->value);
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s1ap_xer_print_s1ap_initialcontextsetupresponse(s1ap_xer__print2sp,
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message_string, message);
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}
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break;
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case S1ap_ProcedureCode_id_UEContextRelease:
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{
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ret = s1ap_decode_s1ap_uecontextreleasecomplete_ies(
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&message->msg.s1ap_UEContextReleaseComplete_IEs,
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&successfullOutcome_p->value);
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s1ap_xer_print_s1ap_uecontextreleasecomplete(s1ap_xer__print2sp,
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message_string, message);
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}
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break;
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default:
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d_error("Unknown procedure ID (%ld) for successfull "
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"outcome message\n", successfullOutcome_p->procedureCode);
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break;
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}
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printf("%s\n", message_string);
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free_wrapper (message_string);
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return ret;
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}
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static status_t s1ap_decode_unsuccessfull_outcome(s1ap_message *message,
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S1ap_UnsuccessfulOutcome_t *unSuccessfulOutcome_p)
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{
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status_t ret = -1;
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char *message_string = NULL;
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d_assert(unSuccessfulOutcome_p != NULL, return -1, "Null param");
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message_string = calloc (10000, sizeof (char));
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s1ap_string_total_size = 0;
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switch (unSuccessfulOutcome_p->procedureCode)
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{
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case S1ap_ProcedureCode_id_InitialContextSetup:
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{
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ret = s1ap_decode_s1ap_initialcontextsetupfailureies(
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&message->msg.s1ap_InitialContextSetupFailureIEs,
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&unSuccessfulOutcome_p->value);
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s1ap_xer_print_s1ap_initialcontextsetupfailure(s1ap_xer__print2sp,
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message_string, message);
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}
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break;
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default:
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{
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d_error("Unknown procedure ID (%d) for "
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"unsuccessfull outcome message\n",
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(int)unSuccessfulOutcome_p->procedureCode);
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}
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break;
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}
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printf("%s\n", message_string);
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free_wrapper (message_string);
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return ret;
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}
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status_t s1ap_parse_pdu(s1ap_message *message, uint8_t *buffer, uint32_t len)
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{
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S1AP_PDU_t pdu = {0};
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S1AP_PDU_t *pdu_p = &pdu;
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asn_dec_rval_t dec_ret = {0};
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d_assert(buffer != NULL, return CORE_ERROR, "Null param");
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memset((void *)pdu_p, 0, sizeof(S1AP_PDU_t));
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dec_ret = aper_decode(NULL, &asn_DEF_S1AP_PDU, (void **)&pdu_p,
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buffer, len, 0, 0);
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if (dec_ret.code != RC_OK)
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{
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d_error("Failed to decode PDU\n");
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return CORE_ERROR;
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}
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memset(message, 0, sizeof(s1ap_message));
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message->direction = pdu_p->present;
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switch (pdu_p->present)
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{
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case S1AP_PDU_PR_initiatingMessage:
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{
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return s1ap_decode_initiating(message,
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&pdu_p->choice.initiatingMessage);
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}
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case S1AP_PDU_PR_successfulOutcome:
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{
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return s1ap_decode_successfull_outcome(message,
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&pdu_p->choice.successfulOutcome);
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}
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case S1AP_PDU_PR_unsuccessfulOutcome:
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{
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return s1ap_decode_unsuccessfull_outcome(message,
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&pdu_p->choice.unsuccessfulOutcome);
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}
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default:
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{
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d_error("Unknown message outcome (%d) or not implemented",
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(int)pdu_p->present);
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break;
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}
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}
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return CORE_ERROR;
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}
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