int s1ap_mme_decode_pdu(s1ap_message *message, uint8_t *buffer, uint32_t len) {
S1AP_PDU_t pdu;
S1AP_PDU_t *pdu_p = &pdu;
asn_dec_rval_t dec_ret;
assert(buffer != NULL);
memset((void *)pdu_p, 0, sizeof(S1AP_PDU_t));
dec_ret = aper_decode(NULL,
&asn_DEF_S1AP_PDU,
(void**)&pdu_p,
buffer,
len,
0,
0);
if (dec_ret.code != RC_OK)
return -1;
message->direction = pdu_p->present;
switch(pdu_p->present) {
case S1AP_PDU_PR_initiatingMessage:
return s1ap_mme_decode_initiating(message, &pdu_p->choice.initiatingMessage);
case S1AP_PDU_PR_successfulOutcome:
return s1ap_mme_decode_successfull_outcome(message, &pdu_p->choice.successfulOutcome);
case S1AP_PDU_PR_unsuccessfulOutcome:
return s1ap_mme_decode_unsuccessfull_outcome(message, &pdu_p->choice.unsuccessfulOutcome);
default:
S1AP_DEBUG("Unknown message outcome (%d) or not implemented", (int)pdu_p->present);
break;
}
return -1;
}
int hnbgw_ranap_rx(struct msgb *msg, uint8_t *data, size_t len)
{
RANAP_RANAP_PDU_t _pdu, *pdu = &_pdu;
asn_dec_rval_t dec_ret;
int rc;
memset(pdu, 0, sizeof(*pdu));
dec_ret = aper_decode(NULL,&asn_DEF_RANAP_RANAP_PDU, (void **) &pdu,
data, len, 0, 0);
if (dec_ret.code != RC_OK) {
LOGP(DRANAP, LOGL_ERROR, "Error in RANAP ASN.1 decode\n");
return rc;
}
rc = _hnbgw_ranap_rx(msg->dst, pdu);
return rc;
}
int s1ap_eNB_decode_pdu(s1ap_message *message, const uint8_t * const buffer,
const uint32_t length)
{
S1AP_PDU_t pdu;
S1AP_PDU_t *pdu_p = &pdu;
asn_dec_rval_t dec_ret;
DevAssert(buffer != NULL);
memset((void *)pdu_p, 0, sizeof(S1AP_PDU_t));
dec_ret = aper_decode(NULL,
&asn_DEF_S1AP_PDU,
(void **)&pdu_p,
buffer,
length,
0,
0);
if (dec_ret.code != RC_OK) {
S1AP_ERROR("Failed to decode pdu\n");
return -1;
}
message->direction = pdu_p->present;
switch(pdu_p->present) {
case S1AP_PDU_PR_initiatingMessage:
return s1ap_eNB_decode_initiating_message(message,
&pdu_p->choice.initiatingMessage);
case S1AP_PDU_PR_successfulOutcome:
return s1ap_eNB_decode_successful_outcome(message,
&pdu_p->choice.successfulOutcome);
case S1AP_PDU_PR_unsuccessfulOutcome:
return s1ap_eNB_decode_unsuccessful_outcome(message,
&pdu_p->choice.unsuccessfulOutcome);
default:
S1AP_DEBUG("Unknown presence (%d) or not implemented\n", (int)pdu_p->present);
break;
}
return -1;
}
int hnbgw_rua_rx(struct hnb_context *hnb, struct msgb *msg)
{
RUA_RUA_PDU_t _pdu, *pdu = &_pdu;
asn_dec_rval_t dec_ret;
int rc;
/* decode and handle to _hnbgw_hnbap_rx() */
memset(pdu, 0, sizeof(*pdu));
dec_ret = aper_decode(NULL, &asn_DEF_RUA_RUA_PDU, (void **) &pdu,
msg->data, msgb_length(msg), 0, 0);
if (dec_ret.code != RC_OK) {
LOGP(DRUA, LOGL_ERROR, "Error in ASN.1 decode\n");
return rc;
}
rc = _hnbgw_rua_rx(msg, pdu);
return rc;
}
