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