diff options
Diffstat (limited to 'src/libcommon-cs/common_cs.c')
-rw-r--r-- | src/libcommon-cs/common_cs.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/libcommon-cs/common_cs.c b/src/libcommon-cs/common_cs.c new file mode 100644 index 000000000..7905802bf --- /dev/null +++ b/src/libcommon-cs/common_cs.c @@ -0,0 +1,133 @@ +/* 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); + + 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->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; +} |