122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/* 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;
|
|
|
|
if (gsm_parse_reg(net, &net->authorized_regexp, &net->authorized_reg_str, 1,
|
|
&default_regexp) != 0)
|
|
return NULL;
|
|
|
|
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);
|
|
|
|
net->bsc_subscribers = talloc_zero(net, struct llist_head);
|
|
INIT_LLIST_HEAD(net->bsc_subscribers);
|
|
|
|
/* 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->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;
|
|
}
|