diff options
| author | Alexander Aring <alex.aring@gmail.com> | 2015-02-11 14:39:15 +0100 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-02-14 05:19:58 +0100 |
| commit | 306f7aa1807be7588f115d7cafa475f65e72e3d1 (patch) | |
| tree | 11679d7f76dc860be1c440c6dbadd6f0d19d99be /include/linux/ieee802154.h | |
| parent | f9d1ce8f81eb046626cfa1bb0f419f8dca04bcae (diff) | |
ieee802154: correct ieee802154_is_valid_psdu_len
This patch corrects the ieee802154_is_valid_psdu_len function that this
function also checks on reserved values 6-8 for validation the psdu
length.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'include/linux/ieee802154.h')
| -rw-r--r-- | include/linux/ieee802154.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h index 6e82d888287c..40b0ab953937 100644 --- a/include/linux/ieee802154.h +++ b/include/linux/ieee802154.h @@ -28,7 +28,8 @@ #include <asm/byteorder.h> #define IEEE802154_MTU 127 -#define IEEE802154_MIN_PSDU_LEN 5 +#define IEEE802154_ACK_PSDU_LEN 5 +#define IEEE802154_MIN_PSDU_LEN 9 #define IEEE802154_PAN_ID_BROADCAST 0xffff #define IEEE802154_ADDR_SHORT_BROADCAST 0xffff @@ -204,11 +205,18 @@ enum { /** * ieee802154_is_valid_psdu_len - check if psdu len is valid + * available lengths: + * 0-4 Reserved + * 5 MPDU (Acknowledgment) + * 6-8 Reserved + * 9-127 MPDU + * * @len: psdu len with (MHR + payload + MFR) */ static inline bool ieee802154_is_valid_psdu_len(const u8 len) { - return (len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU); + return (len == IEEE802154_ACK_PSDU_LEN || + (len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU)); } /** |