From 5bb874d2f5c7bc87121d74437cc6d1fe0e6cda1c Mon Sep 17 00:00:00 2001 From: Holger Hans Peter Freyther Date: Fri, 5 Nov 2010 11:21:18 +0100 Subject: bsc: Add a hook where we can scan for LU and other messages. --- openbsc/include/openbsc/osmo_bsc.h | 2 ++ openbsc/src/bsc/Makefile.am | 1 + openbsc/src/bsc/osmo_bsc_api.c | 6 +++++- openbsc/src/bsc/osmo_bsc_filter.c | 31 +++++++++++++++++++++++++++++++ 4 files changed, 39 insertions(+), 1 deletion(-) create mode 100644 openbsc/src/bsc/osmo_bsc_filter.c (limited to 'openbsc') diff --git a/openbsc/include/openbsc/osmo_bsc.h b/openbsc/include/openbsc/osmo_bsc.h index 389fcc930..43182ad3e 100644 --- a/openbsc/include/openbsc/osmo_bsc.h +++ b/openbsc/include/openbsc/osmo_bsc.h @@ -11,4 +11,6 @@ int bsc_queue_for_msc(struct gsm_subscriber_connection *conn, struct msgb *msg); int bsc_create_new_connection(struct gsm_subscriber_connection *conn, struct msgb *msg, uint16_t chosen_channel); +int bsc_scan_bts_msg(struct gsm_subscriber_connection *conn, struct msgb *msg); + #endif diff --git a/openbsc/src/bsc/Makefile.am b/openbsc/src/bsc/Makefile.am index d304628f5..168c7215f 100644 --- a/openbsc/src/bsc/Makefile.am +++ b/openbsc/src/bsc/Makefile.am @@ -7,6 +7,7 @@ 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 osmo_bsc_msc.c osmo_bsc_sccp.c \ + osmo_bsc_filter.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_api.c b/openbsc/src/bsc/osmo_bsc_api.c index dc31cd421..84c2d6ec0 100644 --- a/openbsc/src/bsc/osmo_bsc_api.c +++ b/openbsc/src/bsc/osmo_bsc_api.c @@ -66,8 +66,11 @@ static void bsc_cipher_mode_compl(struct gsm_subscriber_connection *conn, static int bsc_compl_l3(struct gsm_subscriber_connection *conn, struct msgb *msg, uint16_t chosen_channel) { - if (bsc_create_new_connection(conn, msg, chosen_channel) == 0) + if (bsc_create_new_connection(conn, msg, chosen_channel) == 0) { + bsc_scan_bts_msg(conn, msg); return BSC_API_CONN_POL_ACCEPT; + } + return BSC_API_CONN_POL_REJECT; } @@ -76,6 +79,7 @@ static void bsc_dtap(struct gsm_subscriber_connection *conn, uint8_t link_id, st struct msgb *resp; return_when_not_connected(conn); + bsc_scan_bts_msg(conn, msg); resp = gsm0808_create_dtap(msg, link_id); queue_msg_or_return(resp); } diff --git a/openbsc/src/bsc/osmo_bsc_filter.c b/openbsc/src/bsc/osmo_bsc_filter.c new file mode 100644 index 000000000..1aeaa951e --- /dev/null +++ b/openbsc/src/bsc/osmo_bsc_filter.c @@ -0,0 +1,31 @@ +/* (C) 2009-2010 by Holger Hans Peter Freyther + * (C) 2009-2010 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 + +/** + * This is used to scan a message for extra functionality of the BSC. This + * includes scanning for location updating requests/acceptd and then send + * a welcome USSD message to the subscriber. + */ +int bsc_scan_bts_msg(struct gsm_subscriber_connection *conn, struct msgb *msg) +{ + return 0; +} -- cgit v1.2.3