diff options
Diffstat (limited to 'include/net/mac802154.h')
| -rw-r--r-- | include/net/mac802154.h | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/include/net/mac802154.h b/include/net/mac802154.h index b7f99615224b..da574bbdc333 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 |