diff options
| author | Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> | 2014-05-14 17:43:06 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-15 15:51:42 -0400 |
| commit | c3a6114f31600b94ee10ebf62e4d493b401ade87 (patch) | |
| tree | a854819cfede389764da13bcc0d7670e1f1e964f /include/net/ieee802154.h | |
| parent | 9dbccc30f3306114e1ca4a89da69be6d5f675782 (diff) | |
ieee802154: add definitions for link-layer security and header functions
When dealing with 802.15.4, one often has to know the maximum payload
size for a given packet. This depends on many factors, one of which is
whether or not a security header is present in the frame. These
definitions and functions provide an easy way for any upper layer to
calculate the maximum payload size for a packet. The first obvious user
for this is 6lowpan, which duplicates this calculation and gets it
partially wrong because it ignores security headers.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ieee802154.h')
| -rw-r--r-- | include/net/ieee802154.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/ieee802154.h b/include/net/ieee802154.h index c7ae0ac528dc..0aa7122e8f15 100644 --- a/include/net/ieee802154.h +++ b/include/net/ieee802154.h @@ -79,6 +79,15 @@ #define IEEE802154_SCF_KEY_SHORT_INDEX 2 #define IEEE802154_SCF_KEY_HW_INDEX 3 +#define IEEE802154_SCF_SECLEVEL_NONE 0 +#define IEEE802154_SCF_SECLEVEL_MIC32 1 +#define IEEE802154_SCF_SECLEVEL_MIC64 2 +#define IEEE802154_SCF_SECLEVEL_MIC128 3 +#define IEEE802154_SCF_SECLEVEL_ENC 4 +#define IEEE802154_SCF_SECLEVEL_ENC_MIC32 5 +#define IEEE802154_SCF_SECLEVEL_ENC_MIC64 6 +#define IEEE802154_SCF_SECLEVEL_ENC_MIC128 7 + /* MAC footer size */ #define IEEE802154_MFR_SIZE 2 /* 2 octets */ |