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C

/*
* 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
*/
#include "ran_func_gtp.h"
#include <assert.h>
#include "common/ran_context.h"
#include "openair2/LAYER2/NR_MAC_gNB/mac_proto.h"
#include "openair2/E2AP/flexric/src/util/time_now_us.h"
#include "openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.h"
#include "ds/seq_arr.h"
#if defined (NGRAN_GNB_CUCP)
#include "openair2/RRC/NR/rrc_gNB_UE_context.h"
#include "openair2/RRC/NR/rrc_gNB_radio_bearers.h"
#endif
bool read_gtp_sm(void * data)
{
assert(data != NULL);
gtp_ind_data_t* gtp = (gtp_ind_data_t*)(data);
//fill_gtp_ind_data(gtp);
gtp->msg.tstamp = time_now_us();
uint64_t ue_id_list[MAX_MOBILES_PER_GNB];
size_t num_ues = nr_pdcp_get_num_ues(ue_id_list, MAX_MOBILES_PER_GNB);
gtp->msg.len = num_ues;
if(gtp->msg.len > 0){
gtp->msg.ngut = calloc(gtp->msg.len, sizeof(gtp_ngu_t_stats_t) );
assert(gtp->msg.ngut != NULL);
}
else {
return false;
}
#if defined (NGRAN_GNB_CUCP) && defined (NGRAN_GNB_CUUP)
if (RC.nrrrc[0]->node_type == ngran_gNB_DU || RC.nrrrc[0]->node_type == ngran_gNB_CUCP) return false;
assert((RC.nrrrc[0]->node_type == ngran_gNB_CU || RC.nrrrc[0]->node_type == ngran_gNB) && "Expected node types: CU or gNB-mono");
for (size_t i = 0; i < num_ues; i++) {
rrc_gNB_ue_context_t *ue_context_p = rrc_gNB_get_ue_context(RC.nrrrc[0], ue_id_list[i]);
gtp->msg.ngut[i].rnti = ue_id_list[i];
FOR_EACH_SEQ_ARR(rrc_pdu_session_param_t*, session, &ue_context_p->ue_context.pduSessions) {
gtp->msg.ngut[i].teidgnb = session->param.n3_outgoing.teid;
gtp->msg.ngut[i].teidupf = session->param.n3_incoming.teid;
// TODO: one PDU session has multiple QoS Flow
DevAssert(seq_arr_size(&session->param.qos) == 1);
FOR_EACH_SEQ_ARR(nr_rrc_qos_t *, qos, &session->param.qos) {
gtp->msg.ngut[i].qfi = qos->qos.qfi;
}
break;
}
}
return true;
#elif defined (NGRAN_GNB_CUUP)
// For the moment, CU-UP doesn't store PDU session information
printf("GTP SM not yet implemented in CU-UP\n");
return false;
#endif
}
void read_gtp_setup_sm(void* data)
{
assert(data != NULL);
assert(0 !=0 && "Not supported");
}
sm_ag_if_ans_t write_ctrl_gtp_sm(void const* src)
{
assert(src != NULL);
printf("write_ctrl callback for GTP SM: operation not supported\n");
sm_ag_if_ans_t ans = {0};
return ans;
}