macsec: Netlink support of XPN cipher suites (IEEE 802.1AEbw)
Netlink support of extended packet number cipher suites,
allows adding and updating XPN macsec interfaces.
Added support in:
* Creating interfaces with GCM-AES-XPN-128 and GCM-AES-XPN-256 suites.
* Setting and getting 64bit packet numbers with of SAs.
* Setting (only on SA creation) and getting ssci of SAs.
* Setting salt when installing a SAK.
Added 2 cipher suite identifiers according to 802.1AE-2018 table 14-1:
* MACSEC_CIPHER_ID_GCM_AES_XPN_128
* MACSEC_CIPHER_ID_GCM_AES_XPN_256
In addition, added 2 new netlink attribute types:
* MACSEC_SA_ATTR_SSCI
* MACSEC_SA_ATTR_SALT
Depends on: macsec: Support XPN frame handling - IEEE 802.1AEbw.
Signed-off-by: Era Mayflower <mayflowerera@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/macsec.h b/include/net/macsec.h
index 43cd54e..2e4780d 100644
--- a/include/net/macsec.h
+++ b/include/net/macsec.h
@@ -11,6 +11,9 @@
#include <uapi/linux/if_link.h>
#include <uapi/linux/if_macsec.h>
+#define MACSEC_DEFAULT_PN_LEN 4
+#define MACSEC_XPN_PN_LEN 8
+
#define MACSEC_SALT_LEN 12
#define MACSEC_NUM_AN 4 /* 2 bits for the association number */