1 files changed, 8 insertions, 0 deletions

diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index c9f8ab5cc687..d0d11df9cba1 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -21,6 +21,14 @@
 
 #include <net/af_ieee802154.h>
 
+/* General MAC frame format:
+ *  2 bytes: Frame Control
+ *  1 byte:  Sequence Number
+ * 20 bytes: Addressing fields
+ * 14 bytes: Auxiliary Security Header
+ */
+#define MAC802154_FRAME_HARD_HEADER_LEN         (2 + 1 + 20 + 14)
+
 /* The following flags are used to indicate changed address settings from
  * the stack to the hardware.
  */