Files
openairinterface5g/openair2/X2AP/x2ap_ids.c
T
Cedric Roux c394188e73 x2: first implementation of ID management, some cleanup
Some deadcode was removed.

The implementation of the ID management is not finished.
It will only work if the handover is successful. No error
recovery has been done. For error recovery, we need to
implement the X2AP timers. As it is, in case of error, an ID
might very well never be released.

It has been tested with 1 and 2 UEs doing handover more or less
at the same time.
2019-03-05 14:56:42 +01:00

93 lines
2.4 KiB
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 "x2ap_ids.h"
#include <string.h>
void x2ap_id_manager_init(x2ap_id_manager *m)
{
int i;
memset(m, 0, sizeof(x2ap_id_manager));
for (i = 0; i < X2AP_MAX_IDS; i++)
m->ids[i].rnti = -1;
}
int x2ap_allocate_new_id(x2ap_id_manager *m)
{
int i;
for (i = 0; i < X2AP_MAX_IDS; i++)
if (m->ids[i].rnti == -1) {
m->ids[i].rnti = 0;
m->ids[i].id_source = -1;
m->ids[i].id_target = -1;
return i;
}
return -1;
}
void x2ap_release_id(x2ap_id_manager *m, int id)
{
m->ids[id].rnti = -1;
}
int x2ap_find_id(x2ap_id_manager *m, int id_source, int id_target)
{
int i;
for (i = 0; i < X2AP_MAX_IDS; i++)
if (m->ids[i].rnti != -1 &&
m->ids[i].id_source == id_source &&
m->ids[i].id_target == id_target)
return i;
return -1;
}
int x2ap_find_id_from_rnti(x2ap_id_manager *m, int rnti)
{
int i;
for (i = 0; i < X2AP_MAX_IDS; i++)
if (m->ids[i].rnti == rnti)
return i;
return -1;
}
void x2ap_set_ids(x2ap_id_manager *m, int ue_id, int rnti, int id_source, int id_target)
{
m->ids[ue_id].rnti = rnti;
m->ids[ue_id].id_source = id_source;
m->ids[ue_id].id_target = id_target;
}
int x2ap_id_get_id_source(x2ap_id_manager *m, int ue_id)
{
return m->ids[ue_id].id_source;
}
int x2ap_id_get_id_target(x2ap_id_manager *m, int ue_id)
{
return m->ids[ue_id].id_target;
}
int x2ap_id_get_rnti(x2ap_id_manager *m, int ue_id)
{
return m->ids[ue_id].rnti;
}