c3a6114f31600b94ee10ebf62e4d493b401ade87 |
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14-May-2014 |
Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> |
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>
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94b4f6c21cf54029377a0645675a9d81b6cf890d |
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14-Mar-2014 |
Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> |
ieee802154: add header structs with endiannes and operations This patch provides a set of structures to represent 802.15.4 MAC headers, and a set of operations to push/pull/peek these structs from skbs. We cannot simply pointer-cast the skb MAC header pointer to these structs, because 802.15.4 headers are wildly variable - depending on the first three bytes, virtually all other fields of the header may be present or not, and be present with different lengths. The new header creation/parsing routines also support 802.15.4 security headers, which are currently not supported by the mac802154 implementation of the protocol. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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