259 lines
8.1 KiB
C
259 lines
8.1 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file f1ap_common.c
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* \brief f1ap procedures for both CU and DU
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* \author EURECOM/NTUST
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* \date 2018
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* \version 0.1
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* \company Eurecom
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* \email: navid.nikaein@eurecom.fr, bing-kai.hong@eurecom.fr
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* \note
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* \warning
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*/
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#include "f1ap_common.h"
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static f1ap_cudu_inst_t *f1_du_inst[NUMBER_OF_eNB_MAX]= {0};
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static f1ap_cudu_inst_t *f1_cu_inst[NUMBER_OF_eNB_MAX]= {0};
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#if defined(EMIT_ASN_DEBUG_EXTERN)
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int asn_debug = 0;
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int asn1_xer_print = 0;
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inline void ASN_DEBUG(const char *fmt, ...) {
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if (asn_debug) {
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int adi = asn_debug_indent;
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "[ASN1]");
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while(adi--)
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fprintf(stderr, " ");
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, "\n");
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va_end(ap);
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}
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}
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#endif
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uint8_t F1AP_get_next_transaction_identifier(module_id_t enb_mod_idP, module_id_t cu_mod_idP) {
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static uint8_t transaction_identifier[NUMBER_OF_eNB_MAX];
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transaction_identifier[enb_mod_idP+cu_mod_idP] =
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(transaction_identifier[enb_mod_idP+cu_mod_idP] + 1) % F1AP_TRANSACTION_IDENTIFIER_NUMBER;
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//LOG_T(F1AP,"generated xid is %d\n",transaction_identifier[enb_mod_idP+cu_mod_idP]);
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return transaction_identifier[enb_mod_idP+cu_mod_idP];
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}
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f1ap_cudu_inst_t *getCxt(bool isCU, module_id_t module_idP) {
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static pid_t t=-1;
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pid_t tNew=gettind();
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AssertFatal ( t==-1 || t==tNew, ""This is not thread safe\n");
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t=tNew;
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AssertFatal( module_idP < sizeofArray(f1_cu_inst), "");
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return isCU? f1_cu_inst[ module_idP]: f1_du_inst[ module_idP];
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}
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void createF1inst(bool isCU, module_id_t module_idP, f1ap_setup_req_t *req) {
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if (isCU) {
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AssertFatal(f1_cu_inst[module_idP] == NULL, "Double call to F1 CU init\n");
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f1_cu_inst[module_idP]=( f1ap_cudu_inst_t *) calloc(1, sizeof( f1ap_cudu_inst_t));
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//memcpy(f1_cu_inst[module_idP]->setupReq, req, sizeof(f1ap_setup_req_t) );
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} else {
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AssertFatal(f1_du_inst[module_idP] == NULL, "Double call to F1 DU init\n");
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f1_du_inst[module_idP]=( f1ap_cudu_inst_t *) calloc(1, sizeof(f1ap_cudu_inst_t));
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memcpy(&f1_du_inst[module_idP]->setupReq, req, sizeof(f1ap_setup_req_t) );
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}
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}
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int f1ap_add_ue(bool isCu,
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module_id_t module_idP,
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int CC_idP,
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int UE_id,
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rnti_t rntiP) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].rnti == rntiP) {
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f1_inst->f1ap_ue[i].f1ap_uid = i;
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f1_inst->f1ap_ue[i].mac_uid = UE_id;
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LOG_I(F1AP, "Updating the index of UE with RNTI %x and du_ue_f1ap_id %d\n", f1_inst->f1ap_ue[i].rnti, f1_inst->f1ap_ue[i].du_ue_f1ap_id);
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return i;
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}
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}
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].rnti == 0 ) {
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f1_inst->f1ap_ue[i].rnti = rntiP;
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f1_inst->f1ap_ue[i].f1ap_uid = i;
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f1_inst->f1ap_ue[i].mac_uid = UE_id;
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f1_inst->f1ap_ue[i].du_ue_f1ap_id = rntiP;
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f1_inst->f1ap_ue[i].cu_ue_f1ap_id = rntiP;
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f1_inst->num_ues++;
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LOG_I(F1AP, "Adding a new UE with RNTI %x and cu/du ue_f1ap_id %d\n", f1_inst->f1ap_ue[i].rnti, f1_inst->f1ap_ue[i].du_ue_f1ap_id);
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return i;
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}
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}
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return -1;
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}
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int f1ap_remove_ue(bool isCu, module_id_t module_idP,
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rnti_t rntiP) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].rnti == rntiP) {
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f1_inst->f1ap_ue[i].rnti = 0;
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break;
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}
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}
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f1_inst->num_ues--;
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return 0;
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}
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int f1ap_get_du_ue_f1ap_id(bool isCu, module_id_t module_idP,
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rnti_t rntiP) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].rnti == rntiP) {
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return f1_inst->f1ap_ue[i].du_ue_f1ap_id;
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}
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}
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return -1;
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}
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int f1ap_get_cu_ue_f1ap_id(bool isCu, module_id_t module_idP,
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rnti_t rntiP) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].rnti == rntiP) {
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return f1_inst->f1ap_ue[i].cu_ue_f1ap_id;
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}
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}
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return -1;
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}
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int f1ap_get_rnti_by_du_id(bool isCu, module_id_t module_idP,
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module_id_t du_ue_f1ap_id ) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].du_ue_f1ap_id == du_ue_f1ap_id) {
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return f1_inst->f1ap_ue[i].rnti;
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}
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}
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return -1;
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}
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int f1ap_get_rnti_by_cu_id(bool isCu, module_id_t module_idP,
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module_id_t cu_ue_f1ap_id ) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].cu_ue_f1ap_id == cu_ue_f1ap_id) {
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return f1_inst->f1ap_ue[i].rnti;
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}
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}
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return -1;
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}
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int f1ap_get_du_uid(bool isCu, module_id_t module_idP,
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module_id_t du_ue_f1ap_id ) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].du_ue_f1ap_id == du_ue_f1ap_id) {
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return i;
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}
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}
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return -1;
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}
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int f1ap_get_cu_uid(bool isCu, module_id_t module_idP,
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module_id_t cu_ue_f1ap_id ) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].cu_ue_f1ap_id == cu_ue_f1ap_id) {
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return i;
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}
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}
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return -1;
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}
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int f1ap_get_uid_by_rnti(bool isCu, module_id_t module_idP,
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rnti_t rntiP ) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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for (int i = 0; i < MAX_MOBILES_PER_ENB; i++) {
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if (f1_inst->f1ap_ue[i].rnti == rntiP) {
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return i;
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}
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}
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return -1;
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}
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int f1ap_du_add_cu_ue_id(bool isCu, module_id_t module_idP,
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module_id_t du_ue_f1ap_id,
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module_id_t cu_ue_f1ap_id) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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module_id_t f1ap_uid = f1ap_get_du_uid(isCu, module_idP,du_ue_f1ap_id);
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if (f1ap_uid < 0 || f1ap_uid >= MAX_MOBILES_PER_ENB)
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return -1;
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f1_inst->f1ap_ue[f1ap_uid].cu_ue_f1ap_id = cu_ue_f1ap_id;
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LOG_I(F1AP, "Adding cu_ue_f1ap_id %d for UE with RNTI %x\n", cu_ue_f1ap_id, f1_inst->f1ap_ue[f1ap_uid].rnti);
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return 0;
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}
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int f1ap_cu_add_du_ue_id(bool isCu, module_id_t module_idP,
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module_id_t cu_ue_f1ap_id,
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module_id_t du_ue_f1ap_id) {
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f1ap_cudu_inst_t *f1_inst=getCxt(isCu, module_idP);
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module_id_t f1ap_uid = f1ap_get_cu_uid(isCu,module_idP,cu_ue_f1ap_id);
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if (f1ap_uid < 0 || f1ap_uid >= MAX_MOBILES_PER_ENB)
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return -1;
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f1_inst->f1ap_ue[f1ap_uid].du_ue_f1ap_id = du_ue_f1ap_id;
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LOG_I(F1AP, "Adding du_ue_f1ap_id %d for UE with RNTI %x\n", du_ue_f1ap_id, f1_inst->f1ap_ue[f1ap_uid].rnti);
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return 0;
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}
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int f1ap_assoc_id(bool isCu, module_id_t module_idP) {
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f1ap_setup_req_t *f1_inst=f1ap_req(isCu, module_idP);
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return f1_inst->assoc_id;
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}
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