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/* GPRS SGSN Implementation */
/* (C) 2010 by Harald Welte <laforge@gnumonks.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 <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <errno.h>
#include <sys/fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <osmocore/talloc.h>
#include <osmocore/select.h>
#include <openbsc/signal.h>
#include <openbsc/debug.h>
#include <openbsc/telnet_interface.h>
#include <openbsc/vty.h>
#include <openbsc/sgsn.h>
#include <openbsc/gprs_ns.h>
#include <openbsc/gprs_bssgp.h>
#include "../../bscconfig.h"
/* this is here for the vty... it will never be called */
void subscr_put() { abort(); }
#define _GNU_SOURCE
#include <getopt.h>
void *tall_bsc_ctx;
struct gprs_ns_inst *sgsn_nsi;
const char *openbsc_version = "Osmocom NSIP Proxy " PACKAGE_VERSION;
const char *openbsc_copyright =
"Copyright (C) 2010 Harald Welte and On-Waves\n"
"Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt\n"
"Dieter Spaar, Andreas Eversberg, Holger Freyther\n\n"
"License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>\n"
"This is free software: you are free to change and redistribute it.\n"
"There is NO WARRANTY, to the extent permitted by law.\n";
static char *config_file = "osmo_sgsn.cfg";
static struct sgsn_config sgcfg;
/* call-back function for the NS protocol */
static int sgsn_ns_cb(enum gprs_ns_evt event, struct gprs_nsvc *nsvc,
struct msgb *msg, u_int16_t bvci)
{
int rc = 0;
switch (event) {
case GPRS_NS_EVT_UNIT_DATA:
/* hand the message into the BSSGP implementation */
rc = gprs_bssgp_rcvmsg(msg);
break;
default:
LOGP(DGPRS, LOGL_ERROR, "SGSN: Unknown event %u from NS\n", event);
if (msg)
talloc_free(msg);
rc = -EIO;
break;
}
return rc;
}
/* NSI that BSSGP uses when transmitting on NS */
extern struct gprs_ns_inst *bssgp_nsi;
int main(int argc, char **argv)
{
struct gsm_network dummy_network;
struct log_target *stderr_target;
struct sockaddr_in sin;
int rc;
tall_bsc_ctx = talloc_named_const(NULL, 0, "osmo_sgsn");
log_init(&log_info);
stderr_target = log_target_create_stderr();
log_add_target(stderr_target);
log_set_all_filter(stderr_target, 1);
telnet_init(&dummy_network, 4245);
rc = sgsn_parse_config(config_file, &sgcfg);
if (rc < 0) {
LOGP(DGPRS, LOGL_FATAL, "Cannot parse config file\n");
exit(2);
}
sgsn_nsi = gprs_ns_instantiate(&sgsn_ns_cb);
if (!sgsn_nsi) {
LOGP(DGPRS, LOGL_ERROR, "Unable to instantiate NS\n");
exit(1);
}
bssgp_nsi = sgcfg.nsi = sgsn_nsi;
nsip_listen(sgsn_nsi, sgcfg.nsip_listen_port);
while (1) {
rc = bsc_select_main(0);
if (rc < 0)
exit(3);
}
exit(0);
}
struct gsm_network;
int bsc_vty_init(struct gsm_network *dummy)
{
cmd_init(1);
vty_init();
openbsc_vty_add_cmds();
sgsn_vty_init();
return 0;
}
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