114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
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*
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <osmocom/bsc/osmo_bsc.h>
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#include <osmocom/bsc/bsc_msc_data.h>
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#include <osmocom/bsc/gsm_04_08_utils.h>
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#include <osmocom/bsc/handover_cfg.h>
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#include <osmocom/bsc/chan_alloc.h>
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/* XXX hard-coded for now */
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#define T3122_CHAN_LOAD_SAMPLE_INTERVAL 1 /* in seconds */
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static void update_t3122_chan_load_timer(void *data)
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{
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struct gsm_network *net = data;
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struct gsm_bts *bts;
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llist_for_each_entry(bts, &net->bts_list, list)
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bts_update_t3122_chan_load(bts);
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/* Keep this timer ticking. */
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osmo_timer_schedule(&net->t3122_chan_load_timer, T3122_CHAN_LOAD_SAMPLE_INTERVAL, 0);
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}
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struct gsm_network *bsc_network_init(void *ctx,
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uint16_t country_code,
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uint16_t network_code)
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{
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struct gsm_network *net;
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net = talloc_zero(ctx, struct gsm_network);
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if (!net)
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return NULL;
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net->country_code = country_code;
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net->network_code = network_code;
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/* Permit a compile-time default of A5/3 and A5/1 */
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net->a5_encryption_mask = (1 << 3) | (1 << 1);
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/* Use 30 min periodic update interval as sane default */
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net->t3212 = 5;
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INIT_LLIST_HEAD(&net->subscr_conns);
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net->bsc_subscribers = talloc_zero(net, struct llist_head);
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INIT_LLIST_HEAD(net->bsc_subscribers);
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net->bsc_data = talloc_zero(net, struct osmo_bsc_data);
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if (!net->bsc_data) {
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talloc_free(net);
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return NULL;
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}
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/* Init back pointer */
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net->bsc_data->auto_off_timeout = -1;
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net->bsc_data->network = net;
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INIT_LLIST_HEAD(&net->bsc_data->mscs);
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net->num_bts = 0;
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net->T3101 = GSM_T3101_DEFAULT;
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net->T3103 = GSM_T3103_DEFAULT;
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net->T3105 = GSM_T3105_DEFAULT;
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net->T3107 = GSM_T3107_DEFAULT;
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net->T3109 = GSM_T3109_DEFAULT;
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net->T3111 = GSM_T3111_DEFAULT;
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net->T3113 = GSM_T3113_DEFAULT;
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net->T3115 = GSM_T3115_DEFAULT;
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net->T3117 = GSM_T3117_DEFAULT;
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net->T3119 = GSM_T3119_DEFAULT;
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net->T3122 = GSM_T3122_DEFAULT;
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net->T3141 = GSM_T3141_DEFAULT;
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net->ho = ho_cfg_init(net, NULL);
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net->hodec2.congestion_check_interval_s = HO_CFG_CONGESTION_CHECK_DEFAULT;
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INIT_LLIST_HEAD(&net->bts_list);
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/*
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* At present all BTS in the network share one channel load timeout.
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* If this becomes a problem for networks with a lot of BTS, this
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* code could be refactored to run the timeout individually per BTS.
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*/
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osmo_timer_setup(&net->t3122_chan_load_timer, update_t3122_chan_load_timer, net);
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osmo_timer_schedule(&net->t3122_chan_load_timer, T3122_CHAN_LOAD_SAMPLE_INTERVAL, 0);
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/* init statistics */
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net->bsc_ctrs = rate_ctr_group_alloc(net, &bsc_ctrg_desc, 0);
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if (!net->bsc_ctrs) {
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talloc_free(net);
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return NULL;
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}
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gsm_net_update_ctype(net);
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return net;
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}
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