nat: Create a USSD module to filter out USSDs...
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@ -320,4 +320,7 @@ int bsc_conn_type_to_ctr(struct sccp_connections *conn);
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struct gsm48_hdr *bsc_unpack_dtap(struct bsc_nat_parsed *parsed, struct msgb *msg, uint32_t *len);
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struct gsm48_hdr *bsc_unpack_dtap(struct bsc_nat_parsed *parsed, struct msgb *msg, uint32_t *len);
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/** USSD filtering */
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int bsc_check_ussd(struct sccp_connections *con, struct bsc_nat_parsed *parsed, struct msgb *msg);
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#endif
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#endif
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@ -6,7 +6,7 @@ bin_PROGRAMS = bsc_nat
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bsc_nat_SOURCES = bsc_filter.c bsc_mgcp_utils.c bsc_nat.c bsc_nat_utils.c \
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bsc_nat_SOURCES = bsc_filter.c bsc_mgcp_utils.c bsc_nat.c bsc_nat_utils.c \
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bsc_nat_vty.c bsc_sccp.c \
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bsc_nat_vty.c bsc_sccp.c bsc_ussd.c \
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$(top_srcdir)/src/debug.c $(top_srcdir)/src/bsc_msc.c
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$(top_srcdir)/src/debug.c $(top_srcdir)/src/bsc_msc.c
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bsc_nat_LDADD = $(top_builddir)/src/libvty.a \
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bsc_nat_LDADD = $(top_builddir)/src/libvty.a \
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$(top_builddir)/src/libmgcp.a $(top_builddir)/src/libbsc.a \
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$(top_builddir)/src/libmgcp.a $(top_builddir)/src/libbsc.a \
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@ -854,12 +854,19 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg)
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con = NULL;
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con = NULL;
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goto exit2;
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goto exit2;
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}
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}
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/* hand data to a side channel */
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if (bsc_check_ussd(con, parsed, msg) == 1) {
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/* we are going to take over the connection */
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/* TODO: */
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}
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}
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}
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con_bsc = con->bsc;
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con_bsc = con->bsc;
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con_msc = con->msc_con;
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con_msc = con->msc_con;
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con_filter = con->con_local;
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con_filter = con->con_local;
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}
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}
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break;
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break;
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case SCCP_MSG_TYPE_RLC:
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case SCCP_MSG_TYPE_RLC:
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con = patch_sccp_src_ref_to_msc(msg, parsed, bsc);
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con = patch_sccp_src_ref_to_msc(msg, parsed, bsc);
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@ -0,0 +1,32 @@
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/* USSD Filter Code */
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/*
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* (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010 by On-Waves
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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 General Public License as published by
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* the Free Software Foundation; either version 2 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <openbsc/bsc_nat.h>
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#include <openbsc/bsc_nat_sccp.h>
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int bsc_check_ussd(struct sccp_connections *con, struct bsc_nat_parsed *parsed,
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struct msgb *msg)
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{
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return 0;
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}
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