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/* Generic signalling/notification infrastructure */
/* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009 by Harald Welte <laforge@gnumonks.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.
*
*/
#ifndef OPENBSC_SIGNAL_H
#define OPENBSC_SIGNAL_H
#include <stdlib.h>
#include <errno.h>
#include <openbsc/gsm_data.h>
#include <openbsc/gsm_subscriber.h>
/*
* Signalling subsystems
*/
enum signal_subsystems {
SS_PAGING,
SS_SMS,
SS_ABISIP,
SS_NM,
SS_LCHAN,
};
/* SS_PAGING signals */
enum signal_paging {
S_PAGING_COMPLETED,
};
/* SS_ABISIP signals */
enum signal_abisip {
S_ABISIP_BIND_ACK,
};
/* SS_NM signals */
enum signal_nm {
S_NM_SW_ACTIV_REP, /* GSM 12.21 software activated report */
S_NM_FAIL_REP, /* GSM 12.21 failure event report */
};
/* SS_LCHAN signals */
enum signal_lchan {
/*
* The lchan got freed with an use_count != 0 and error
* recovery needs to be carried out from within the
* signal handler.
*/
S_LCHAN_UNEXPECTED_RELEASE,
};
typedef int signal_cbfn(unsigned int subsys, unsigned int signal,
void *handler_data, void *signal_data);
struct paging_signal_data {
struct gsm_subscriber *subscr;
struct gsm_bts *bts;
/* NULL in case the paging didn't work */
struct gsm_lchan *lchan;
};
/* Management */
int register_signal_handler(unsigned int subsys, signal_cbfn *cbfn, void *data);
void unregister_signal_handler(unsigned int subsys, signal_cbfn *cbfn, void *data);
/* Dispatch */
void dispatch_signal(unsigned int subsys, unsigned int signal, void *signal_data);
#endif
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