forked from acouzens/open5gs
80 lines
2.4 KiB
C
80 lines
2.4 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 "sgsap-types.h"
|
|
#include "sgsap-build.h"
|
|
#include "sgsap-conv.h"
|
|
|
|
ogs_pkbuf_t *sgsap_build_location_update_request(mme_ue_t *mme_ue)
|
|
{
|
|
mme_vlr_t *vlr = NULL;
|
|
ogs_tlv_t *root = NULL;
|
|
ogs_pkbuf_t *pkbuf = NULL;
|
|
|
|
char mme_name[SGSAP_IE_MME_NAME_LEN+1];
|
|
int mme_name_len = 0;
|
|
served_gummei_t *served_gummei = &mme_self()->served_gummei[0];
|
|
char eps_update_type;
|
|
nas_lai_t lai;
|
|
|
|
ogs_assert(mme_ue);
|
|
vlr = mme_ue->vlr;
|
|
ogs_assert(vlr);
|
|
|
|
root = ogs_tlv_add(NULL, SGSAP_IE_IMSI_TYPE, SGSAP_IE_IMSI_LEN, 0,
|
|
&mme_ue->nas_mobile_identity_imsi);
|
|
|
|
mme_name_len = mme_name_build(mme_name,
|
|
served_gummei->mme_code[0],
|
|
served_gummei->mme_gid[0],
|
|
&served_gummei->plmn_id[0]);
|
|
ogs_tlv_add(root, SGSAP_IE_MME_NAME_TYPE, mme_name_len, 0, mme_name);
|
|
eps_update_type = SGSAP_EPS_UPDATE_IMSI_ATTACH;
|
|
ogs_tlv_add(root, SGSAP_IE_EPS_UPDATE_TYPE, SGSAP_IE_EPS_UPDATE_LEN, 0,
|
|
&eps_update_type);
|
|
memcpy(&lai, &vlr->lai, sizeof(nas_lai_t));
|
|
lai.lac = htons(lai.lac);
|
|
ogs_tlv_add(root, SGSAP_IE_LAI_TYPE, SGSAP_IE_LAI_LEN, 0, &lai);
|
|
|
|
pkbuf = ogs_pkbuf_alloc(NULL, MAX_SDU_LEN);
|
|
ogs_pkbuf_put_u8(pkbuf, SGSAP_LOCATION_UPDATE_REQUEST);
|
|
ogs_pkbuf_put(pkbuf, MAX_SDU_LEN-1);
|
|
|
|
ogs_pkbuf_trim(pkbuf, 1+ogs_tlv_render(root,
|
|
pkbuf->data+1, MAX_SDU_LEN-1, OGS_TLV_MODE_T1_L1));
|
|
|
|
ogs_tlv_free_all(root);
|
|
|
|
return pkbuf;
|
|
}
|
|
ogs_pkbuf_t *sgsap_build_tmsi_reallocation_complete(mme_ue_t *mme_ue)
|
|
{
|
|
return NULL;
|
|
}
|
|
ogs_pkbuf_t *sgsap_build_service_request(mme_ue_t *mme_ue)
|
|
{
|
|
return NULL;
|
|
}
|
|
ogs_pkbuf_t *sgsap_build_mo_csfb_indication(mme_ue_t *mme_ue)
|
|
{
|
|
return NULL;
|
|
}
|