diff options
Diffstat (limited to 'include/linux/ieee802154.h')
| -rw-r--r-- | include/linux/ieee802154.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h index db01492814d3..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 @@ -207,6 +217,7 @@ enum { /* frame control handling */ #define IEEE802154_FCTL_FTYPE 0x0003 +#define IEEE802154_FCTL_ACKREQ 0x0020 #define IEEE802154_FCTL_INTRA_PAN 0x0040 #define IEEE802154_FTYPE_DATA 0x0001 @@ -222,6 +233,15 @@ static inline int ieee802154_is_data(__le16 fc) } /** + * 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 */ |