open5gs/src/mme/sbc-handler.c

94 lines
3.0 KiB
C

/*
* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
*
* This file is part of Open5GS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "mme-context.h"
#include "s1ap-path.h"
#include "s1ap-build.h"
#include "sbc-handler.h"
void sbc_handle_write_replace_warning_request(sbc_pws_data_t *sbc_pws)
{
ogs_pkbuf_t *s1apbuf = NULL;
mme_enb_t *enb = NULL;
int i, j, flag;
/* Find enB with matched TAI */
ogs_list_for_each(&mme_self()->enb_list, enb) {
flag = 0;
if (sbc_pws->no_of_tai > 0) {
for (i = 0, flag = 0; i < enb->num_of_supported_ta_list; i++) {
for (j = 0; j < sbc_pws->no_of_tai; j++) {
if (!memcmp(&enb->supported_ta_list[i],
&sbc_pws->tai[j], sizeof(ogs_eps_tai_t)))
flag = 1;
if (flag) break;
}
if (flag) break;
}
} else
flag = 1;
if (flag) {
/* Build S1AP Write Replace Warning Request message */
s1apbuf = s1ap_build_write_replace_warning_request(sbc_pws);
ogs_expect_or_return(s1apbuf);
/* Send to enb */
ogs_expect(s1ap_send_to_enb(
enb, s1apbuf, S1AP_NON_UE_SIGNALLING) == OGS_OK);
}
}
}
void sbc_handle_stop_warning_request(sbc_pws_data_t *sbc_pws)
{
ogs_pkbuf_t *s1apbuf = NULL;
mme_enb_t *enb = NULL;
int i, j, flag;
/* Find enB with matched TAI */
ogs_list_for_each(&mme_self()->enb_list, enb) {
flag = 0;
if (sbc_pws->no_of_tai > 0) {
for (i = 0, flag = 0; i < enb->num_of_supported_ta_list; i++) {
for (j = 0; j < sbc_pws->no_of_tai; j++) {
if (!memcmp(&enb->supported_ta_list[i],
&sbc_pws->tai[j], sizeof(ogs_eps_tai_t)))
flag = 1;
if (flag) break;
}
if (flag) break;
}
} else
flag = 1;
if (flag) {
/* Build S1AP Kill request message */
s1apbuf = s1ap_build_kill_request(sbc_pws);
ogs_expect_or_return(s1apbuf);
/* Send to enb */
ogs_expect(s1ap_send_to_enb(
enb, s1apbuf, S1AP_NON_UE_SIGNALLING) == OGS_OK);
}
}
}