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/* A hackish minimal BSC (+MSC +HLR) implementation */
/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* 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 <time.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/stat.h>
#define _GNU_SOURCE
#include <getopt.h>
#include <openbsc/db.h>
#include <openbsc/select.h>
#include <openbsc/debug.h>
#include <openbsc/e1_input.h>
#include <openbsc/talloc.h>
#include <openbsc/signal.h>
/* MCC and MNC for the Location Area Identifier */
struct gsm_network *bsc_gsmnet = 0;
static const char *database_name = "hlr.sqlite3";
static const char *config_file = "openbsc.cfg";
extern int bsc_bootstrap_network(int (*mmc_rev)(struct gsm_network *, int, void *),
const char *cfg_file);
extern int bsc_shutdown_net(struct gsm_network *net);
static void create_pcap_file(char *file)
{
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
int fd = open(file, O_WRONLY|O_TRUNC|O_CREAT, mode);
if (fd < 0) {
perror("Failed to open file for pcap");
return;
}
e1_set_pcap_fd(fd);
}
static void print_usage()
{
printf("Usage: bsc_hack\n");
}
static void print_help()
{
printf(" Some useful help...\n");
printf(" -h --help this text\n");
printf(" -d option --debug=DRLL:DCC:DMM:DRR:DRSL:DNM enable debugging\n");
printf(" -s --disable-color\n");
printf(" -c --config-file filename The config file to use.\n");
printf(" -l --database db-name The database to use\n");
printf(" -p --pcap file The filename of the pcap file\n");
printf(" -T --timestamp Prefix every log line with a timestamp\n");
printf(" -P --rtp-proxy Enable the RTP Proxy code inside OpenBSC\n");
}
static void handle_options(int argc, char** argv)
{
while (1) {
int option_index = 0, c;
static struct option long_options[] = {
{"help", 0, 0, 'h'},
{"debug", 1, 0, 'd'},
{"config-file", 1, 0, 'c'},
{"disable-color", 0, 0, 's'},
{"database", 1, 0, 'l'},
{"authorize-everyone", 0, 0, 'a'},
{"pcap", 1, 0, 'p'},
{"timestamp", 0, 0, 'T'},
{"rtp-proxy", 0, 0, 'P'},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "hd:sl:ar:p:TPc:",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'h':
print_usage();
print_help();
exit(0);
case 's':
debug_use_color(0);
break;
case 'd':
debug_parse_category_mask(optarg);
break;
case 'l':
database_name = strdup(optarg);
break;
case 'c':
config_file = strdup(optarg);
break;
case 'p':
create_pcap_file(optarg);
break;
case 'T':
debug_timestamp(1);
break;
case 'P':
ipacc_rtp_direct = 0;
break;
default:
/* ignore */
break;
}
}
}
static void signal_handler(int signal)
{
fprintf(stdout, "signal %u received\n", signal);
switch (signal) {
case SIGINT:
bsc_shutdown_net(bsc_gsmnet);
dispatch_signal(SS_GLOBAL, S_GLOBAL_SHUTDOWN, NULL);
sleep(3);
exit(0);
break;
case SIGABRT:
/* in case of abort, we want to obtain a talloc report
* and then return to the caller, who will abort the process */
case SIGUSR1:
talloc_report_full(tall_bsc_ctx, stderr);
break;
default:
break;
}
}
int main(int argc, char **argv)
{
int rc;
tall_bsc_ctx = talloc_named_const(NULL, 1, "openbsc");
talloc_ctx_init();
on_dso_load_token();
on_dso_load_rrlp();
on_dso_load_ho_dec();
/* parse options */
handle_options(argc, argv);
/* seed the PRNG */
srand(time(NULL));
if (db_init(database_name)) {
printf("DB: Failed to init database. Please check the option settings.\n");
return -1;
}
printf("DB: Database initialized.\n");
if (db_prepare()) {
printf("DB: Failed to prepare database.\n");
return -1;
}
printf("DB: Database prepared.\n");
rc = bsc_bootstrap_network(mncc_recv, config_file);
if (rc < 0)
exit(1);
signal(SIGINT, &signal_handler);
signal(SIGABRT, &signal_handler);
signal(SIGUSR1, &signal_handler);
signal(SIGPIPE, SIG_IGN);
while (1) {
bsc_upqueue(bsc_gsmnet);
bsc_select_main(0);
}
}
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