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/* OsmoHLR TX/RX lu operations */
/* (C) 2017 sysmocom s.f.m.c. GmbH <info@sysmocom.de>
* All Rights Reserved
*
* Author: Harald Welte <laforge@gnumonks.org>
*
* 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/>.
*
*/
#pragma once
#include <stdbool.h>
#include <osmocom/core/timer.h>
#include <osmocom/gsm/gsup.h>
#include "db.h"
#define CANCEL_TIMEOUT_SECS 30
#define ISD_TIMEOUT_SECS 30
enum lu_state {
LU_S_NULL,
LU_S_LU_RECEIVED,
LU_S_CANCEL_SENT,
LU_S_CANCEL_ACK_RECEIVED,
LU_S_ISD_SENT,
LU_S_ISD_ACK_RECEIVED,
LU_S_COMPLETE,
};
extern const struct value_string lu_state_names[];
struct lu_operation {
/*! entry in global list of location update operations */
struct llist_head list;
/*! to which gsup_server do we belong */
struct osmo_gsup_server *gsup_server;
/*! state of the location update */
enum lu_state state;
/*! CS (false) or PS (true) Location Update? */
bool is_ps;
/*! currently running timer */
struct osmo_timer_list timer;
/*! subscriber related to this operation */
struct hlr_subscriber subscr;
/*! peer VLR/SGSN starting the request */
uint8_t *peer;
};
int osmo_gsup_addr_send(struct osmo_gsup_server *gs,
const uint8_t *addr, size_t addrlen,
struct msgb *msg);
struct lu_operation *lu_op_alloc(struct osmo_gsup_server *srv);
struct lu_operation *lu_op_alloc_conn(struct osmo_gsup_conn *conn);
void lu_op_statechg(struct lu_operation *luop, enum lu_state new_state);
bool lu_op_fill_subscr(struct lu_operation *luop, struct db_context *dbc,
const char *imsi);
struct lu_operation *lu_op_by_imsi(const char *imsi,
const struct llist_head *lst);
void lu_op_tx_error(struct lu_operation *luop, enum gsm48_gmm_cause cause);
void lu_op_tx_ack(struct lu_operation *luop);
void lu_op_tx_cancel_old(struct lu_operation *luop);
void lu_op_tx_insert_subscr_data(struct lu_operation *luop);
void lu_op_tx_del_subscr_data(struct lu_operation *luop);
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