1 files changed, 46 insertions, 1 deletions

diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index 1dc1f4ed4001..d3e415674dac 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -25,12 +25,22 @@
 
 #include <linux/types.h>
 #include <linux/random.h>
-#include <asm/byteorder.h>
 
 #define IEEE802154_MTU                  127
 #define IEEE802154_ACK_PSDU_LEN         5
 #define IEEE802154_MIN_PSDU_LEN         9
 #define IEEE802154_FCS_LEN              2
+#define IEEE802154_MAX_AUTH_TAG_LEN     16
+
+/*  General MAC frame format:
+ *  2 bytes: Frame Control
+ *  1 byte:  Sequence Number
+ * 20 bytes: Addressing fields
+ * 14 bytes: Auxiliary Security Header
+ */
+#define IEEE802154_MAX_HEADER_LEN       (2 + 1 + 20 + 14)
+#define IEEE802154_MIN_HEADER_LEN       (IEEE802154_ACK_PSDU_LEN - \
+                                         IEEE802154_FCS_LEN)
 
 #define IEEE802154_PAN_ID_BROADCAST     0xffff
 #define IEEE802154_ADDR_SHORT_BROADCAST 0xffff
@@ -205,6 +215,41 @@ enum {
         IEEE802154_SCAN_IN_PROGRESS = 0xfc,
 };
 
+/* frame control handling */
+#define IEEE802154_FCTL_FTYPE           0x0003
+#define IEEE802154_FCTL_ACKREQ          0x0020
+#define IEEE802154_FCTL_INTRA_PAN       0x0040
+
+#define IEEE802154_FTYPE_DATA           0x0001
+
+/*
+ * ieee802154_is_data - check if type is IEEE802154_FTYPE_DATA
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee802154_is_data(__le16 fc)
+{
+        return (fc & cpu_to_le16(IEEE802154_FCTL_FTYPE)) ==
+                cpu_to_le16(IEEE802154_FTYPE_DATA);
+}
+
+/**
+ * ieee802154_is_ackreq - check if acknowledgment request bit is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline bool ieee802154_is_ackreq(__le16 fc)
+{
+        return fc & cpu_to_le16(IEEE802154_FCTL_ACKREQ);
+}
+
+/**
+ * ieee802154_is_intra_pan - check if intra pan id communication
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline bool ieee802154_is_intra_pan(__le16 fc)
+{
+        return fc & cpu_to_le16(IEEE802154_FCTL_INTRA_PAN);
+}
+
 /**
  * ieee802154_is_valid_psdu_len - check if psdu len is valid
  * available lengths: