diff --git a/include/openbsc/chan_alloc.h b/include/openbsc/chan_alloc.h
new file mode 100644
index 0000000..5eda312
--- /dev/null
+++ b/include/openbsc/chan_alloc.h
@@ -0,0 +1,65 @@
+/* Management functions to allocate/release struct gsm_lchan */
+/* (C) 2008 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/>.
+ *
+ */
+#ifndef _CHAN_ALLOC_H
+#define _CHAN_ALLOC_H
+
+#include "gsm_data.h"
+
+struct gsm_subscriber_connection;
+
+/* Special allocator for C0 of BTS */
+struct gsm_bts_trx_ts *ts_c0_alloc(struct gsm_bts *bts,
+				   enum gsm_phys_chan_config pchan);
+
+/* Regular physical channel allocator */
+struct gsm_bts_trx_ts *ts_alloc(struct gsm_bts *bts,
+				enum gsm_phys_chan_config pchan);
+
+/* Regular physical channel (TS) */
+void ts_free(struct gsm_bts_trx_ts *ts);
+
+/* Find an allocated channel for a specified subscriber */
+struct gsm_subscriber_connection *connection_for_subscr(struct gsm_subscriber *subscr);
+
+/* Allocate a logical channel (SDCCH, TCH, ...) */
+struct gsm_lchan *lchan_alloc(struct gsm_bts *bts, enum gsm_chan_t type, int allow_bigger);
+
+/* Free a logical channel (SDCCH, TCH, ...) */
+void lchan_free(struct gsm_lchan *lchan);
+void lchan_reset(struct gsm_lchan *lchan);
+
+/* Release the given lchan */
+int lchan_release(struct gsm_lchan *lchan, int sach_deact, int reason);
+
+struct load_counter {
+	unsigned int total;
+	unsigned int used;
+};
+
+struct pchan_load {
+	struct load_counter pchan[GSM_PCHAN_UNKNOWN];
+};
+
+void bts_chan_load(struct pchan_load *cl, const struct gsm_bts *bts);
+void network_chan_load(struct pchan_load *pl, struct gsm_network *net);
+
+int trx_is_usable(struct gsm_bts_trx *trx);
+
+#endif /* _CHAN_ALLOC_H */