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openairinterface5g/openair2/F1AP/f1ap_common.c
T
Navid Nikaein d9661177fa Better management of cu/du ue ids 
Fix for some variables
2018-09-19 02:01:08 +02:00

368 lines
10 KiB
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/*
* 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
*/
/*! \file f1ap_common.c
* \brief f1ap procedures for both CU and DU
* \author EURECOM/NTUST
* \date 2018
* \version 0.1
* \company Eurecom
* \email: navid.nikaein@eurecom.fr, bing-kai.hong@eurecom.fr
* \note
* \warning
*/
#include "f1ap_common.h"
#if defined(EMIT_ASN_DEBUG_EXTERN)
int asn_debug = 0;
int asn1_xer_print = 0;
inline void ASN_DEBUG(const char *fmt, ...)
{
if (asn_debug) {
int adi = asn_debug_indent;
va_list ap;
va_start(ap, fmt);
fprintf(stderr, "[ASN1]");
while(adi--) fprintf(stderr, " ");
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
va_end(ap);
}
}
#endif
/*
ssize_t f1ap_generate_initiating_message(
uint8_t **buffer,
uint32_t *length,
e_F1ap_ProcedureCode procedureCode,
F1ap_Criticality_t criticality,
asn_TYPE_descriptor_t *td,
void *sptr)
{
S1AP_PDU_t pdu;
ssize_t encoded;
memset(&pdu, 0, sizeof(S1AP_PDU_t));
pdu.present = S1AP_PDU_PR_initiatingMessage;
pdu.choice.initiatingMessage.procedureCode = procedureCode;
pdu.choice.initiatingMessage.criticality = criticality;
ANY_fromType_aper(&pdu.choice.initiatingMessage.value, td, sptr);
if (asn1_xer_print) {
xer_fprint(stdout, &asn_DEF_S1AP_PDU, (void *)&pdu);
}*/
/* We can safely free list of IE from sptr */
/*
ASN_STRUCT_FREE_CONTENTS_ONLY(*td, sptr);
if ((encoded = aper_encode_to_new_buffer(&asn_DEF_S1AP_PDU, 0, &pdu,
(void **)buffer)) < 0) {
return -1;
}
*length = encoded;
return encoded;
}
ssize_t f1ap_generate_successfull_outcome(
uint8_t **buffer,
uint32_t *length,
e_F1ap_ProcedureCode procedureCode,
F1ap_Criticality_t criticality,
asn_TYPE_descriptor_t *td,
void *sptr)
{
S1AP_PDU_t pdu;
ssize_t encoded;
memset(&pdu, 0, sizeof(S1AP_PDU_t));
pdu.present = S1AP_PDU_PR_successfulOutcome;
pdu.choice.successfulOutcome.procedureCode = procedureCode;
pdu.choice.successfulOutcome.criticality = criticality;
ANY_fromType_aper(&pdu.choice.successfulOutcome.value, td, sptr);
if (asn1_xer_print) {
xer_fprint(stdout, &asn_DEF_S1AP_PDU, (void *)&pdu);
}*/
/* We can safely free list of IE from sptr */
/*
ASN_STRUCT_FREE_CONTENTS_ONLY(*td, sptr);
if ((encoded = aper_encode_to_new_buffer(&asn_DEF_S1AP_PDU, 0, &pdu,
(void **)buffer)) < 0) {
return -1;
}
*length = encoded;
return encoded;
}
ssize_t f1ap_generate_unsuccessfull_outcome(
uint8_t **buffer,
uint32_t *length,
e_F1ap_ProcedureCode procedureCode,
F1ap_Criticality_t criticality,
asn_TYPE_descriptor_t *td,
void *sptr)
{
S1AP_PDU_t pdu;
ssize_t encoded;
memset(&pdu, 0, sizeof(S1AP_PDU_t));
pdu.present = S1AP_PDU_PR_unsuccessfulOutcome;
pdu.choice.successfulOutcome.procedureCode = procedureCode;
pdu.choice.successfulOutcome.criticality = criticality;
ANY_fromType_aper(&pdu.choice.successfulOutcome.value, td, sptr);
if (asn1_xer_print) {
xer_fprint(stdout, &asn_DEF_S1AP_PDU, (void *)&pdu);
}
*/
/* We can safely free list of IE from sptr */
/*
ASN_STRUCT_FREE_CONTENTS_ONLY(*td, sptr);
if ((encoded = aper_encode_to_new_buffer(&asn_DEF_S1AP_PDU, 0, &pdu,
(void **)buffer)) < 0) {
return -1;
}
*length = encoded;
return encoded;
}
F1ap_IE_t *f1ap_new_ie(
F1ap_ProtocolIE_ID_t id,
F1ap_Criticality_t criticality,
asn_TYPE_descriptor_t *type,
void *sptr)
{
F1ap_IE_t *buff;
if ((buff = malloc(sizeof(F1ap_IE_t))) == NULL) {
// Possible error on malloc
return NULL;
}
memset((void *)buff, 0, sizeof(F1ap_IE_t));
buff->id = id;
buff->criticality = criticality;
if (ANY_fromType_aper(&buff->value, type, sptr) < 0) {
fprintf(stderr, "Encoding of %s failed\n", type->name);
free(buff);
return NULL;
}
if (asn1_xer_print)
if (xer_fprint(stdout, &asn_DEF_F1ap_IE, buff) < 0) {
free(buff);
return NULL;
}
return buff;
}
void f1ap_handle_criticality(F1ap_Criticality_t criticality)
{
}
*/
uint8_t F1AP_get_next_transaction_identifier(module_id_t enb_mod_idP, module_id_t cu_mod_idP)
{
static uint8_t transaction_identifier[NUMBER_OF_eNB_MAX];
transaction_identifier[enb_mod_idP+cu_mod_idP] =
(transaction_identifier[enb_mod_idP+cu_mod_idP] + 1) % F1AP_TRANSACTION_IDENTIFIER_NUMBER;
//LOG_T(F1AP,"generated xid is %d\n",transaction_identifier[enb_mod_idP+cu_mod_idP]);
return transaction_identifier[enb_mod_idP+cu_mod_idP];
}
module_id_t F1AP_get_UE_identifier(module_id_t enb_mod_idP, int CC_idP, int UE_id) {
static module_id_t UE_identifier[NUMBER_OF_eNB_MAX];
UE_identifier[enb_mod_idP+CC_idP+UE_id] = (UE_identifier[enb_mod_idP+CC_idP+UE_id] + 1) % F1AP_UE_IDENTIFIER_NUMBER;
//LOG_T(F1AP,"generated xid is %d\n",transaction_identifier[enb_mod_idP+du_mod_idP]);
return UE_identifier[enb_mod_idP+CC_idP+UE_id];
}
int f1ap_add_ue(f1ap_cudu_ue_inst_t *f1_ue_inst,
module_id_t module_idP,
int CC_idP,
int UE_id,
rnti_t rntiP){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->rnti[i] == rntiP) {
f1_ue_inst->f1ap_uid[i] = i;
f1_ue_inst->mac_uid[i] = UE_id;
LOG_I(F1AP, "Updating the index of UE with RNTI %x and du_ue_f1ap_id %d\n", f1_ue_inst->rnti[i], f1_ue_inst->du_ue_f1ap_id[i]);
return i;
}
}
for (i=0; i < MAX_MOBILES_PER_ENB ; i++){
if (f1_ue_inst->rnti[i] == 0 ){
f1_ue_inst->rnti[i]=rntiP;
f1_ue_inst->f1ap_uid[i]=i;
f1_ue_inst->mac_uid[i]=UE_id;
f1_ue_inst->du_ue_f1ap_id[i] = F1AP_get_UE_identifier(module_idP, CC_idP, i);
f1_ue_inst->cu_ue_f1ap_id[i] = F1AP_get_UE_identifier(module_idP, CC_idP, i);
f1_ue_inst->num_ues++;
LOG_I(F1AP, "Adding a new UE with RNTI %x and cu/du ue_f1ap_id %d\n", f1_ue_inst->rnti[i], f1_ue_inst->du_ue_f1ap_id[i]);
return i;
}
}
return -1;
}
int f1ap_remove_ue(f1ap_cudu_ue_inst_t *f1_ue_inst,
rnti_t rntiP){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->rnti[i] == rntiP) {
f1_ue_inst->rnti[i] = 0;
break;
}
}
return 0 ;
}
int f1ap_get_du_ue_f1ap_id (f1ap_cudu_ue_inst_t *f1_ue_inst,
rnti_t rntiP){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->rnti[i] == rntiP) {
return f1_ue_inst->du_ue_f1ap_id[i];
}
}
return -1;
}
int f1ap_get_cu_ue_f1ap_id (f1ap_cudu_ue_inst_t *f1_ue_inst,
rnti_t rntiP){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->rnti[i] == rntiP) {
return f1_ue_inst->cu_ue_f1ap_id[i];
}
}
return -1;
}
int f1ap_get_rnti_by_du_id(f1ap_cudu_ue_inst_t *f1_ue_inst,
module_id_t du_ue_f1ap_id ){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->du_ue_f1ap_id[i] == du_ue_f1ap_id) {
return f1_ue_inst->rnti[i];
}
}
return -1;
}
int f1ap_get_rnti_by_cu_id(f1ap_cudu_ue_inst_t *f1_ue_inst,
module_id_t cu_ue_f1ap_id ){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->cu_ue_f1ap_id[i] == cu_ue_f1ap_id) {
return f1_ue_inst->rnti[i];
}
}
return -1;
}
int f1ap_get_du_uid(f1ap_cudu_ue_inst_t *f1_ue_inst,
module_id_t du_ue_f1ap_id ){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->du_ue_f1ap_id[i] == du_ue_f1ap_id) {
return i;
}
}
return -1;
}
int f1ap_get_cu_uid(f1ap_cudu_ue_inst_t *f1_ue_inst,
module_id_t cu_ue_f1ap_id ){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->cu_ue_f1ap_id[i] == cu_ue_f1ap_id) {
return i;
}
}
return -1;
}
int f1ap_get_uid_by_rnti(f1ap_cudu_ue_inst_t *f1_ue_inst,
rnti_t rntiP ){
int i;
for (i=0; i < MAX_MOBILES_PER_ENB; i++){
if (f1_ue_inst->rnti[i] == rntiP) {
return i;
}
}
return -1;
}
int f1ap_du_add_cu_ue_id(f1ap_cudu_ue_inst_t *f1_ue_inst,
module_id_t du_ue_f1ap_id,
module_id_t cu_ue_f1ap_id){
module_id_t f1ap_uid = f1ap_get_du_uid(f1_ue_inst,du_ue_f1ap_id);
if (f1ap_uid < 0 )
return -1 ;
f1_ue_inst->cu_ue_f1ap_id[f1ap_uid]=cu_ue_f1ap_id;
LOG_I(F1AP, "Adding cu_ue_f1ap_id %d for UE with RNTI %x \n", cu_ue_f1ap_id, f1_ue_inst->rnti[f1ap_uid]);
return 0 ;
}
int f1ap_cu_add_du_ue_id(f1ap_cudu_ue_inst_t *f1_ue_inst,
module_id_t cu_ue_f1ap_id,
module_id_t du_ue_f1ap_id){
module_id_t f1ap_uid = f1ap_get_cu_uid(f1_ue_inst,cu_ue_f1ap_id);
if (f1ap_uid < 0 )
return -1 ;
f1_ue_inst->du_ue_f1ap_id[f1ap_uid]=du_ue_f1ap_id;
LOG_I(F1AP, "Adding du_ue_f1ap_id %d for UE with RNTI %x \n", du_ue_f1ap_id, f1_ue_inst->rnti[f1ap_uid]);
return 0 ;
}
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