1 files changed, 313 insertions, 0 deletions
diff --git a/src/osmo-nitb/bsc_hack.c b/src/osmo-nitb/bsc_hack.c
new file mode 100644
index 000000000..357ec7ac4
--- /dev/null
+++ b/src/osmo-nitb/bsc_hack.c
@@ -0,0 +1,313 @@
+/* A hackish minimal BSC (+MSC +HLR) implementation */
+
+/* (C) 2008-2010 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 Affero General Public License as published by
+ * the Free Software Foundation; either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#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 <osmocore/select.h>
+#include <osmocore/process.h>
+#include <openbsc/debug.h>
+#include <openbsc/e1_input.h>
+#include <osmocore/talloc.h>
+#include <openbsc/signal.h>
+#include <openbsc/osmo_msc.h>
+#include <openbsc/sms_queue.h>
+#include <openbsc/vty.h>
+
+#include "../../bscconfig.h"
+
+/* MCC and MNC for the Location Area Identifier */
+static struct log_target *stderr_target;
+struct gsm_network *bsc_gsmnet = 0;
+static const char *database_name = "hlr.sqlite3";
+static const char *config_file = "openbsc.cfg";
+extern const char *openbsc_copyright;
+static int daemonize = 0;
+static int use_mncc_sock = 0;
+
+/* timer to store statistics */
+#define DB_SYNC_INTERVAL	60, 0
+static struct timer_list db_sync_timer;
+
+extern int bsc_bootstrap_network(int (*mncc_recv)(struct gsm_network *, struct msgb *),
+				 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("  -D --daemonize Fork the process into a background daemon\n");
+	printf("  -c --config-file filename The config file to use.\n");
+	printf("  -s --disable-color\n");
+	printf("  -l --database db-name The database to use\n");
+	printf("  -a --authorize-everyone. Authorize every new subscriber. Dangerous!.\n");
+	printf("  -p --pcap file  The filename of the pcap file\n");
+	printf("  -T --timestamp Prefix every log line with a timestamp\n");
+	printf("  -V --version. Print the version of OpenBSC.\n");
+	printf("  -P --rtp-proxy Enable the RTP Proxy code inside OpenBSC\n");
+	printf("  -e --log-level number. Set a global loglevel.\n");
+	printf("  -m --mncc-sock Disable built-in MNCC handler and offer socket\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'},
+			{"daemonize", 0, 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'},
+			{"version", 0, 0, 'V' },
+			{"rtp-proxy", 0, 0, 'P'},
+			{"log-level", 1, 0, 'e'},
+			{"mncc-sock", 0, 0, 'm'},
+			{0, 0, 0, 0}
+		};
+
+		c = getopt_long(argc, argv, "hd:Dsl:ar:p:TPVc:e:m",
+				long_options, &option_index);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case 'h':
+			print_usage();
+			print_help();
+			exit(0);
+		case 's':
+			log_set_use_color(stderr_target, 0);
+			break;
+		case 'd':
+			log_parse_category_mask(stderr_target, optarg);
+			break;
+		case 'D':
+			daemonize = 1;
+			break;
+		case 'l':
+			database_name = strdup(optarg);
+			break;
+		case 'c':
+			config_file = strdup(optarg);
+			break;
+		case 'p':
+			create_pcap_file(optarg);
+			break;
+		case 'T':
+			log_set_print_timestamp(stderr_target, 1);
+			break;
+		case 'P':
+			ipacc_rtp_direct = 0;
+			break;
+		case 'e':
+			log_set_log_level(stderr_target, atoi(optarg));
+			break;
+		case 'm':
+			use_mncc_sock = 1;
+			break;
+		case 'V':
+			print_version(1);
+			exit(0);
+			break;
+		default:
+			/* ignore */
+			break;
+		}
+	}
+}
+
+extern void *tall_vty_ctx;
+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(tall_vty_ctx, stderr);
+		talloc_report_full(tall_bsc_ctx, stderr);
+		break;
+	case SIGUSR2:
+		talloc_report_full(tall_vty_ctx, stderr);
+		break;
+	default:
+		break;
+	}
+}
+
+/* timer handling */
+static int _db_store_counter(struct counter *counter, void *data)
+{
+	return db_store_counter(counter);
+}
+
+static void db_sync_timer_cb(void *data)
+{
+	/* store counters to database and re-schedule */
+	counters_for_each(_db_store_counter, NULL);
+	bsc_schedule_timer(&db_sync_timer, DB_SYNC_INTERVAL);
+}
+
+extern int bts_model_unknown_init(void);
+extern int bts_model_bs11_init(void);
+extern int bts_model_nanobts_init(void);
+extern int bts_model_rbs2k_init(void);
+extern int bts_model_hslfemto_init(void);
+void talloc_ctx_init(void);
+
+extern enum node_type bsc_vty_go_parent(struct vty *vty);
+
+static struct vty_app_info vty_info = {
+	.name 		= "OpenBSC",
+	.version	= PACKAGE_VERSION,
+	.go_parent_cb	= bsc_vty_go_parent,
+	.is_config_node	= bsc_vty_is_config_node,
+};
+
+int main(int argc, char **argv)
+{
+	int rc;
+
+	vty_info.copyright = openbsc_copyright;
+
+	log_init(&log_info);
+	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();
+	stderr_target = log_target_create_stderr();
+	log_add_target(stderr_target);
+
+	bts_model_unknown_init();
+	bts_model_bs11_init();
+	bts_model_nanobts_init();
+	bts_model_rbs2k_init();
+	bts_model_hslfemto_init();
+
+	e1inp_init();
+
+	/* enable filters */
+	log_set_all_filter(stderr_target, 1);
+
+	/* This needs to precede handle_options() */
+	vty_init(&vty_info);
+	bsc_vty_init();
+
+	/* parse options */
+	handle_options(argc, argv);
+
+	/* internal MNCC handler or MNCC socket? */
+	if (use_mncc_sock) {
+		rc = bsc_bootstrap_network(mncc_sock_from_cc, config_file);
+		if (rc >= 0)
+			mncc_sock_init(bsc_gsmnet);
+	} else
+		rc = bsc_bootstrap_network(int_mncc_recv, config_file);
+	if (rc < 0)
+		exit(1);
+	bsc_api_init(bsc_gsmnet, msc_bsc_api());
+	mncc_sock_init(bsc_gsmnet);
+
+	/* 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");
+
+	/* setup the timer */
+	db_sync_timer.cb = db_sync_timer_cb;
+	db_sync_timer.data = NULL;
+	bsc_schedule_timer(&db_sync_timer, DB_SYNC_INTERVAL);
+
+	signal(SIGINT, &signal_handler);
+	signal(SIGABRT, &signal_handler);
+	signal(SIGUSR1, &signal_handler);
+	signal(SIGUSR2, &signal_handler);
+	signal(SIGPIPE, SIG_IGN);
+
+	/* start the SMS queue */
+	if (sms_queue_start(bsc_gsmnet, 20) != 0)
+		return -1;
+
+	if (daemonize) {
+		rc = osmo_daemonize();
+		if (rc < 0) {
+			perror("Error during daemonize");
+			exit(1);
+		}
+	}
+
+	while (1) {
+		log_reset_context();
+		bsc_select_main(0);
+	}
+}