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ieee802154: add security bit check function 

ieee802154_is_secen checks if the 802.15.4 security bit is set in the
frame control field.

Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Alexandre Macabies <web+oss@zopieux.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexandre Macabies 2016-04-12 18:53:00 +02:00 committed by Marcel Holtmann
parent b30d27f5bb
commit bc405cd69a
1 changed files with 10 additions and 0 deletions
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10
include/linux/ieee802154.h
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@ -218,6 +218,7 @@ enum {
/* frame control handling */
#define IEEE802154_FCTL_FTYPE 0x0003
#define IEEE802154_FCTL_ACKREQ 0x0020
#define IEEE802154_FCTL_SECEN 0x0004
#define IEEE802154_FCTL_INTRA_PAN 0x0040
#define IEEE802154_FTYPE_DATA 0x0001
@ -232,6 +233,15 @@ static inline int ieee802154_is_data(__le16 fc)
cpu_to_le16(IEEE802154_FTYPE_DATA);
}
/**
* ieee802154_is_secen - check if Security bit is set
* @fc: frame control bytes in little-endian byteorder
*/
static inline bool ieee802154_is_secen(__le16 fc)
{
return fc & cpu_to_le16(IEEE802154_FCTL_SECEN);
}
/**
* ieee802154_is_ackreq - check if acknowledgment request bit is set
* @fc: frame control bytes in little-endian byteorder