--- /dev/null
+/*
+ * "Copyright (c) 2008 The Regents of the University of California.
+ * All rights reserved."
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
+ *
+ */
+#ifndef _IEEE154_H_
+#define _IEEE154_H_
+
+typedef struct IEEE154_header {
+ uint8_t length;
+ uint16_t fcf;
+ uint8_t dsn;
+ uint16_t destpan;
+ uint16_t dest;
+ uint16_t src;
+} __attribute__((packed)) IEEE154_header_t;
+
+typedef struct serial_header {
+ uint16_t dest;
+ uint16_t src;
+ uint8_t length;
+ uint8_t group;
+ uint8_t type;
+} __attribute__((packed)) serial_header_t;
+
+enum {
+ // size of the header not including the length byte
+ MAC_HEADER_SIZE = sizeof( IEEE154_header_t ) - 1,
+ // size of the footer (FCS field)
+ MAC_FOOTER_SIZE = sizeof( uint16_t ),
+};
+
+#endif