| /* 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; |
| } |