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/* The concept of a subscriber for the MSC, roughly HLR/VLR functionality */
/* (C) 2008 by Harald Welte <laforge@gnumonks.org>
* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <openbsc/gsm_subscriber.h>
#include <openbsc/debug.h>
#include <openbsc/signal.h>
#include <openbsc/db.h>
extern struct llist_head *subscr_bsc_active_subscriber(void);
char *subscr_name(struct gsm_subscriber *subscr)
{
if (strlen(subscr->name))
return subscr->name;
return subscr->imsi;
}
struct gsm_subscriber *subscr_get_by_tmsi(struct gsm_network *net,
u_int32_t tmsi)
{
char tmsi_string[14];
struct gsm_subscriber *subscr;
/* we might have a record in memory already */
llist_for_each_entry(subscr, subscr_bsc_active_subscriber(), entry) {
if (tmsi == subscr->tmsi)
return subscr_get(subscr);
}
sprintf(tmsi_string, "%u", tmsi);
return db_get_subscriber(net, GSM_SUBSCRIBER_TMSI, tmsi_string);
}
struct gsm_subscriber *subscr_get_by_imsi(struct gsm_network *net,
const char *imsi)
{
struct gsm_subscriber *subscr;
llist_for_each_entry(subscr, subscr_bsc_active_subscriber(), entry) {
if (strcmp(subscr->imsi, imsi) == 0)
return subscr_get(subscr);
}
return db_get_subscriber(net, GSM_SUBSCRIBER_IMSI, imsi);
}
struct gsm_subscriber *subscr_get_by_extension(struct gsm_network *net,
const char *ext)
{
struct gsm_subscriber *subscr;
llist_for_each_entry(subscr, subscr_bsc_active_subscriber(), entry) {
if (strcmp(subscr->extension, ext) == 0)
return subscr_get(subscr);
}
return db_get_subscriber(net, GSM_SUBSCRIBER_EXTENSION, ext);
}
struct gsm_subscriber *subscr_get_by_id(struct gsm_network *net,
unsigned long long id)
{
struct gsm_subscriber *subscr;
char buf[32];
sprintf(buf, "%llu", id);
llist_for_each_entry(subscr, subscr_bsc_active_subscriber(), entry) {
if (subscr->id == id)
return subscr_get(subscr);
}
return db_get_subscriber(net, GSM_SUBSCRIBER_ID, buf);
}
int subscr_update(struct gsm_subscriber *s, struct gsm_bts *bts, int reason)
{
/* FIXME: Migrate pending requests from one BSC to another */
switch (reason) {
case GSM_SUBSCRIBER_UPDATE_ATTACHED:
s->net = bts->network;
/* Indicate "attached to LAC" */
s->lac = bts->location_area_code;
LOGP(DMM, LOGL_INFO, "Subscriber %s ATTACHED LAC=%u\n",
subscr_name(s), s->lac);
dispatch_signal(SS_SUBSCR, S_SUBSCR_ATTACHED, s);
break;
case GSM_SUBSCRIBER_UPDATE_DETACHED:
/* Only detach if we are currently in this area */
if (bts->location_area_code == s->lac)
s->lac = GSM_LAC_RESERVED_DETACHED;
LOGP(DMM, LOGL_INFO, "Subscriber %s DETACHED\n", subscr_name(s));
dispatch_signal(SS_SUBSCR, S_SUBSCR_DETACHED, s);
break;
default:
fprintf(stderr, "subscr_update with unknown reason: %d\n",
reason);
break;
};
return db_sync_subscriber(s);
}
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