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/* Code used by both libbsc and libmsc (common_cs means "BSC or MSC").
*
* (C) 2016 by sysmocom s.m.f.c. <info@sysmocom.de>
* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
* (C) 2014 by Holger Hans Peter Freyther
* 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 <stdbool.h>
#include <osmocom/gsm/gsm0480.h>
#include <openbsc/common_cs.h>
#include <openbsc/gsm_data.h>
#include <openbsc/gsm_subscriber.h>
#include <openbsc/gsm_data.h>
#include <openbsc/gsm_04_11.h>
/* Warning: if bsc_network_init() is not called, some of the members of
* gsm_network are not initialized properly and must not be used! (In
* particular the llist heads and stats counters.)
* The long term aim should be to have entirely separate structs for libbsc and
* libmsc with some common general items.
*/
struct gsm_network *gsm_network_init(void *ctx,
uint16_t country_code,
uint16_t network_code,
mncc_recv_cb_t mncc_recv)
{
struct gsm_network *net;
const char *default_regexp = ".*";
net = talloc_zero(ctx, struct gsm_network);
if (!net)
return NULL;
net->subscr_group = talloc_zero(net, struct gsm_subscriber_group);
if (!net->subscr_group) {
talloc_free(net);
return NULL;
}
if (gsm_parse_reg(net, &net->authorized_regexp, &net->authorized_reg_str, 1,
&default_regexp) != 0)
return NULL;
net->subscr_group->net = net;
net->auto_create_subscr = true;
net->auto_assign_exten = true;
net->country_code = country_code;
net->network_code = network_code;
INIT_LLIST_HEAD(&net->trans_list);
INIT_LLIST_HEAD(&net->upqueue);
INIT_LLIST_HEAD(&net->subscr_conns);
/* init statistics */
net->msc_ctrs = rate_ctr_group_alloc(net, &msc_ctrg_desc, 0);
net->active_calls = osmo_counter_alloc("msc.active_calls");
net->mncc_recv = mncc_recv;
net->ext_min = GSM_MIN_EXTEN;
net->ext_max = GSM_MAX_EXTEN;
net->dyn_ts_allow_tch_f = true;
return net;
}
struct msgb *gsm48_create_mm_serv_rej(enum gsm48_reject_value value)
{
struct msgb *msg;
struct gsm48_hdr *gh;
msg = gsm48_msgb_alloc_name("GSM 04.08 SERV REJ");
if (!msg)
return NULL;
gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
gh->proto_discr = GSM48_PDISC_MM;
gh->msg_type = GSM48_MT_MM_CM_SERV_REJ;
gh->data[0] = value;
return msg;
}
struct msgb *gsm48_create_loc_upd_rej(uint8_t cause)
{
struct gsm48_hdr *gh;
struct msgb *msg;
msg = gsm48_msgb_alloc_name("GSM 04.08 LOC UPD REJ");
if (!msg)
return NULL;
gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
gh->proto_discr = GSM48_PDISC_MM;
gh->msg_type = GSM48_MT_MM_LOC_UPD_REJECT;
gh->data[0] = cause;
return msg;
}
uint8_t sms_next_rp_msg_ref(uint8_t *next_rp_ref)
{
const uint8_t rp_msg_ref = *next_rp_ref;
/*
* This should wrap as the valid range is 0 to 255. We only
* transfer one SMS at a time so we don't need to check if
* the id has been already assigned.
*/
*next_rp_ref += 1;
return rp_msg_ref;
}
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