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Diffstat (limited to 'include/net/mac802154.h')
-rw-r--r--include/net/mac802154.h33
1 files changed, 25 insertions, 8 deletions
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index b7f996152..da574bbdc 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -23,14 +23,6 @@
#include <net/cfg802154.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)
-
/**
* enum ieee802154_hw_addr_filt_flags - hardware address filtering flags
*
@@ -250,6 +242,21 @@ struct ieee802154_ops {
};
/**
+ * ieee802154_get_fc_from_skb - get the frame control field from an skb
+ * @skb: skb where the frame control field will be get from
+ */
+static inline __le16 ieee802154_get_fc_from_skb(const struct sk_buff *skb)
+{
+ /* return some invalid fc on failure */
+ if (unlikely(skb->len < 2)) {
+ WARN_ON(1);
+ return cpu_to_le16(0);
+ }
+
+ return (__force __le16)__get_unaligned_memmove16(skb_mac_header(skb));
+}
+
+/**
* ieee802154_be64_to_le64 - copies and convert be64 to le64
* @le64_dst: le64 destination pointer
* @be64_src: be64 source pointer
@@ -270,6 +277,16 @@ static inline void ieee802154_le64_to_be64(void *be64_dst, const void *le64_src)
}
/**
+ * ieee802154_le16_to_be16 - copies and convert le16 to be16
+ * @be16_dst: be16 destination pointer
+ * @le16_src: le16 source pointer
+ */
+static inline void ieee802154_le16_to_be16(void *be16_dst, const void *le16_src)
+{
+ __put_unaligned_memmove16(swab16p(le16_src), be16_dst);
+}
+
+/**
* ieee802154_alloc_hw - Allocate a new hardware device
*
* This must be called once for each hardware device. The returned pointer