diff options
author | Holger Hans Peter Freyther <zecke@selfish.org> | 2010-09-16 00:20:56 +0800 |
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committer | Holger Hans Peter Freyther <zecke@selfish.org> | 2010-09-16 00:20:56 +0800 |
commit | bd76fab9cb6f7b452ae225b4dc0b07ac8128fc76 (patch) | |
tree | 79b07fcadc4f5ab48b39644bc17c4996b9f44e15 /openbsc/src/bsc | |
parent | 0ab63d73c1527565b70da00a14bba86f42377776 (diff) |
bsc: Add the osmo_bsc_grace from the on-waves/bsc-master branch
The grace code will decide if a given connection is allowed to
be made or if it is going to be rejected. For active connections
it is going to send a USSD message.
Diffstat (limited to 'openbsc/src/bsc')
-rw-r--r-- | openbsc/src/bsc/Makefile.am | 1 | ||||
-rw-r--r-- | openbsc/src/bsc/osmo_bsc_grace.c | 108 |
2 files changed, 109 insertions, 0 deletions
diff --git a/openbsc/src/bsc/Makefile.am b/openbsc/src/bsc/Makefile.am index 6e179a0c1..db497be72 100644 --- a/openbsc/src/bsc/Makefile.am +++ b/openbsc/src/bsc/Makefile.am @@ -6,6 +6,7 @@ bin_PROGRAMS = osmo-bsc osmo_bsc_SOURCES = osmo_bsc_main.c osmo_bsc_rf.c osmo_bsc_vty.c osmo_bsc_api.c \ + osmo_bsc_grace.c \ $(top_srcdir)/src/debug.c $(top_srcdir)/src/bsc_msc.c \ $(top_srcdir)/src/bsc_init.c osmo_bsc_LDADD = $(top_builddir)/src/libvty.a \ diff --git a/openbsc/src/bsc/osmo_bsc_grace.c b/openbsc/src/bsc/osmo_bsc_grace.c new file mode 100644 index 000000000..89f05f427 --- /dev/null +++ b/openbsc/src/bsc/osmo_bsc_grace.c @@ -0,0 +1,108 @@ +/* + * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org> + * (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 General Public License as published by + * the Free Software Foundation; either version 2 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#include <openbsc/osmo_bsc_grace.h> +#include <openbsc/osmo_bsc_rf.h> +#include <openbsc/osmo_msc_data.h> +#include <openbsc/gsm_04_80.h> +#include <openbsc/signal.h> + +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->ussd_grace_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->ussd_grace_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); +} |