diff --git a/include/osmocom/core/bitvec.h b/include/osmocom/core/bitvec.h
index 2415a81..d64d69d 100644
--- a/include/osmocom/core/bitvec.h
+++ b/include/osmocom/core/bitvec.h
@@ -3,6 +3,7 @@
 /* bit vector utility routines */
 
 /* (C) 2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2012 Ivan Klyuchnikov
  *
  * All Rights Reserved
  *
@@ -39,6 +40,7 @@
  */
 
 #include <stdint.h>
+#include <talloc.h>
 
 /*! \brief A single GSM bit
  *
@@ -73,5 +75,12 @@
 int bitvec_spare_padding(struct bitvec *bv, unsigned int up_to_bit);
 int bitvec_get_bytes(struct bitvec *bv, uint8_t *bytes, unsigned int count);
 int bitvec_set_bytes(struct bitvec *bv, const uint8_t *bytes, unsigned int count);
+struct bitvec *bitvec_alloc(unsigned int size, TALLOC_CTX *bvctx);
+void bitvec_free(struct bitvec *bv);
+int bitvec_unhex(struct bitvec *bv, const char *src);
+unsigned int bitvec_pack(const struct bitvec *bv, uint8_t *buffer);
+unsigned int bitvec_unpack(struct bitvec *bv, const uint8_t *buffer);
+uint64_t bitvec_read_field(struct bitvec *bv, unsigned int read_index, unsigned int len);
+int bitvec_write_field(struct bitvec *bv, unsigned int write_index, uint64_t val, unsigned int len);
 
 /*! @} */