79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/* Interaction with the SCCP subsystem */
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/*
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* (C) 2009-2010 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2009-2010 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/gsm_data.h>
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#include <openbsc/osmo_msc_data.h>
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#include <openbsc/debug.h>
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#include <osmocore/gsm0808.h>
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#include <osmocore/protocol/gsm_08_08.h>
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#include <osmocom/sccp/sccp.h>
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static void msc_sccp_write_ipa(struct sccp_connection *conn, struct msgb *msg, void *data)
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{
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LOGP(DMSC, LOGL_ERROR, "Writing is not implemented.\n");
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msgb_free(msg);
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}
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static int msc_sccp_accept(struct sccp_connection *connection, void *data)
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{
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LOGP(DMSC, LOGL_DEBUG, "Rejecting incoming SCCP connection.\n");
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return -1;
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}
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static int msc_sccp_read(struct msgb *msgb, unsigned int length, void *data)
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{
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struct bssmap_header *bs;
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LOGP(DMSC, LOGL_DEBUG, "Incoming SCCP message ftom MSC: %s\n",
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hexdump(msgb->l3h, length));
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if (length < sizeof(*bs)) {
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LOGP(DMSC, LOGL_ERROR, "The header is too short.\n");
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return -1;
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}
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bs = (struct bssmap_header *) msgb->l3h;
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if (bs->length < length - sizeof(*bs))
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return -1;
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switch (bs->type) {
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case BSSAP_MSG_BSS_MANAGEMENT:
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break;
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default:
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LOGP(DMSC, LOGL_ERROR, "Unimplemented msg type: %d\n", bs->type);
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}
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return 0;
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}
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int osmo_bsc_sccp_init(struct gsm_network *gsmnet)
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{
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sccp_set_log_area(DSCCP);
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sccp_system_init(msc_sccp_write_ipa, gsmnet);
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sccp_connection_set_incoming(&sccp_ssn_bssap, msc_sccp_accept, NULL);
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sccp_set_read(&sccp_ssn_bssap, msc_sccp_read, NULL);
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return 0;
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}
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