ieee802154, mac802154: implement devkey record option
The 802.15.4-2011 standard states that for each key, a list of devices
that use this key shall be kept. Previous patches have only considered
two options:
* a device "uses" (or may use) all keys, rendering the list useless
* a device is restricted to a certain set of keys
Another option would be that a device *may* use all keys, but need not
do so, and we are interested in the actual set of keys the device uses.
Recording keys used by any given device may have a noticable performance
impact and might not be needed as often. The common case, in which a
device will not switch keys too often, should still perform well.
Signed-off-by: Phoebe Buckheister <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
diff --git a/include/net/ieee802154_netdev.h b/include/net/ieee802154_netdev.h
index eb9f850..3b53c8e 100644
--- a/include/net/ieee802154_netdev.h
+++ b/include/net/ieee802154_netdev.h
@@ -280,6 +280,7 @@
enum {
IEEE802154_LLSEC_DEVKEY_IGNORE,
IEEE802154_LLSEC_DEVKEY_RESTRICT,
+ IEEE802154_LLSEC_DEVKEY_RECORD,
__IEEE802154_LLSEC_DEVKEY_MAX,
};
