From 03fd8d014f9871896a86534432c8757d65a576fe Mon Sep 17 00:00:00 2001 From: Jonathan Santos Date: Wed, 25 May 2011 13:54:02 -0400 Subject: Import upstream version 0.9.13 --- src/osmo-bsc/osmo_bsc_grace.c | 107 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) create mode 100644 src/osmo-bsc/osmo_bsc_grace.c (limited to 'src/osmo-bsc/osmo_bsc_grace.c') diff --git a/src/osmo-bsc/osmo_bsc_grace.c b/src/osmo-bsc/osmo_bsc_grace.c new file mode 100644 index 000000000..f699cf39c --- /dev/null +++ b/src/osmo-bsc/osmo_bsc_grace.c @@ -0,0 +1,107 @@ +/* + * (C) 2010 by Holger Hans Peter Freyther + * (C) 2010 by On-Waves + * 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 . + * + */ + +#include +#include +#include +#include +#include + +int bsc_grace_allow_new_connection(struct gsm_network *network) +{ + if (!network->msc_data->rf_ctl) + return 1; + return network->msc_data->rf_ctl->policy == S_RF_ON; +} + +static int handle_sub(struct gsm_lchan *lchan, const char *text) +{ + struct gsm_subscriber_connection *conn; + + /* only send it to TCH */ + if (lchan->type != GSM_LCHAN_TCH_H && lchan->type != GSM_LCHAN_TCH_F) + return -1; + + /* only send on the primary channel */ + conn = lchan->conn; + if (!conn) + return -1; + + if (conn->lchan != lchan) + return -1; + + /* only when active */ + if (lchan->state != LCHAN_S_ACTIVE) + return -1; + + gsm0480_send_ussdNotify(conn, 0, text); + gsm0480_send_releaseComplete(conn); + + return 0; +} + +/* + * The place to handle the grace mode. Right now we will send + * USSD messages to the subscriber, in the future we might start + * a timer to have different modes for the grace period. + */ +static int handle_grace(struct gsm_network *network) +{ + int ts_nr, lchan_nr; + struct gsm_bts *bts; + struct gsm_bts_trx *trx; + + if (!network->msc_data->mid_call_txt) + return 0; + + llist_for_each_entry(bts, &network->bts_list, list) { + llist_for_each_entry(trx, &bts->trx_list, list) { + for (ts_nr = 0; ts_nr < TRX_NR_TS; ++ts_nr) { + struct gsm_bts_trx_ts *ts = &trx->ts[ts_nr]; + for (lchan_nr = 0; lchan_nr < TS_MAX_LCHAN; ++lchan_nr) { + handle_sub(&ts->lchan[lchan_nr], + network->msc_data->mid_call_txt); + } + } + } + } + return 0; +} + +static int handle_rf_signal(unsigned int subsys, unsigned int signal, + void *handler_data, void *signal_data) +{ + struct rf_signal_data *sig; + + if (subsys != SS_RF) + return -1; + + sig = signal_data; + + if (signal == S_RF_GRACE) + handle_grace(sig->net); + + return 0; +} + +static __attribute__((constructor)) void on_dso_load_grace(void) +{ + register_signal_handler(SS_RF, handle_rf_signal, NULL); +} -- cgit v1.2.3