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/* MS subscriber data handling */
/* (C) 2014 by sysmocom s.f.m.c. GmbH
*
* All Rights Reserved
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <openbsc/gsm_subscriber.h>
#include <openbsc/sgsn.h>
#include <openbsc/gprs_sgsn.h>
#include <openbsc/gprs_gmm.h>
#include <openbsc/debug.h>
extern void *tall_bsc_ctx;
void gprs_subscr_init(struct sgsn_instance *sgi)
{
}
static struct sgsn_subscriber_data *sgsn_subscriber_data_alloc(void *ctx)
{
struct sgsn_subscriber_data *sdata;
sdata = talloc_zero(ctx, struct sgsn_subscriber_data);
return sdata;
}
struct gsm_subscriber *gprs_subscr_get_or_create(const char *imsi)
{
struct gsm_subscriber *subscr;
subscr = subscr_get_or_create(NULL, imsi);
if (!subscr)
return NULL;
if (!subscr->sgsn_data)
subscr->sgsn_data = sgsn_subscriber_data_alloc(subscr);
subscr->keep_in_ram = 1;
return subscr;
}
struct gsm_subscriber *gprs_subscr_get_by_imsi(const char *imsi)
{
return subscr_active_by_imsi(NULL, imsi);
}
void gprs_subscr_delete(struct gsm_subscriber *subscr)
{
if (subscr->sgsn_data->mm) {
subscr_put(subscr->sgsn_data->mm->subscr);
subscr->sgsn_data->mm->subscr = NULL;
subscr->sgsn_data->mm = NULL;
}
if ((subscr->flags & GPRS_SUBSCRIBER_CANCELLED) ||
(subscr->flags & GSM_SUBSCRIBER_FIRST_CONTACT))
subscr->keep_in_ram = 0;
subscr_put(subscr);
}
void gprs_subscr_put_and_cancel(struct gsm_subscriber *subscr)
{
subscr->authorized = 0;
subscr->flags |= GPRS_SUBSCRIBER_CANCELLED;
gprs_subscr_update(subscr);
gprs_subscr_delete(subscr);
}
int gprs_subscr_query(struct gsm_subscriber *subscr)
{
/* TODO: Implement remote query to MSC, ... */
LOGMMCTXP(LOGL_INFO, subscr->sgsn_data->mm,
"subscriber data is not available (remote query NYI)\n");
return -ENOTSUP;
}
void gprs_subscr_update(struct gsm_subscriber *subscr)
{
LOGMMCTXP(LOGL_DEBUG, subscr->sgsn_data->mm, "Updating subscriber data\n");
subscr->flags &= ~GPRS_SUBSCRIBER_UPDATE_PENDING;
subscr->flags &= ~GSM_SUBSCRIBER_FIRST_CONTACT;
sgsn_update_subscriber_data(subscr->sgsn_data->mm, subscr);
}
int gprs_subscr_request_update(struct sgsn_mm_ctx *mmctx)
{
struct gsm_subscriber *subscr = NULL;
int need_update = 0;
int rc;
LOGMMCTXP(LOGL_DEBUG, mmctx, "Requesting subscriber data update\n");
if (mmctx->subscr) {
subscr = subscr_get(mmctx->subscr);
} else if (mmctx->imsi[0]) {
subscr = gprs_subscr_get_by_imsi(mmctx->imsi);
need_update = 1;
}
if (!subscr) {
subscr = gprs_subscr_get_or_create(mmctx->imsi);
subscr->flags |= GSM_SUBSCRIBER_FIRST_CONTACT;
need_update = 1;
}
if (strcpy(subscr->equipment.imei, mmctx->imei) != 0) {
strncpy(subscr->equipment.imei, mmctx->imei, GSM_IMEI_LENGTH-1);
subscr->equipment.imei[GSM_IMEI_LENGTH-1] = 0;
need_update = 1;
}
if (subscr->lac != mmctx->ra.lac) {
subscr->lac = mmctx->ra.lac;
need_update = 1;
}
if (need_update) {
subscr->flags |= GPRS_SUBSCRIBER_UPDATE_PENDING;
if (!mmctx->subscr) {
subscr->sgsn_data->mm = mmctx;
mmctx->subscr = subscr_get(subscr);
}
rc = gprs_subscr_query(subscr);
subscr_put(subscr);
return rc;
}
gprs_subscr_update(subscr);
subscr_put(subscr);
return 0;
}
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