diff --git a/src/gsm_data.c b/src/gsm_data.c
new file mode 100644
index 0000000..a4d0e8b
--- /dev/null
+++ b/src/gsm_data.c
@@ -0,0 +1,68 @@
+/* (C) 2008 by Harald Welte <laforge@gnumonks.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 <stdlib.h>
+#include <string.h>
+
+#include "gsm_data.h"
+
+struct gsm_network *gsm_network_init(unsigned int num_bts, u_int8_t country_code,
+				     u_int8_t network_code)
+{
+	int i;
+	struct gsm_network *net;
+
+	if (num_bts > GSM_MAX_BTS)
+		return NULL;
+
+	net = malloc(sizeof(*net));
+	if (!net)
+		return NULL;
+	memset(net, 0, sizeof(*net));	
+
+	net->country_code = country_code;
+	net->network_code = network_code;
+	net->num_bts = num_bts;
+
+	for (i = 0; i < num_bts; i++) {
+		struct gsm_bts *bts = &net->bts[i];
+		int j;
+		
+		bts->network = net;
+		bts->nr = i;
+
+		for (j = 0; j < BTS_MAX_TRX; j++) {
+			struct gsm_bts_trx *trx = &bts->trx[j];
+			int k;
+
+			trx->bts = bts;
+			trx->nr = j;
+
+			for (k = 0; k < 8; k++) {
+				struct gsm_bts_trx_ts *ts = &trx->ts[k];
+				
+				ts->trx = trx;
+				ts->nr = k;
+			}
+		}
+
+		bts->num_trx = 1;	/* FIXME */
+	}
+}