macsec: key identifier is 128 bits, not 64
The MACsec standard mentions a key identifier for each key, but
doesn't specify anything about it, so I arbitrarily chose 64 bits.
IEEE 802.1X-2010 specifies MKA (MACsec Key Agreement), and defines the
key identifier to be 128 bits (96 bits "member identifier" + 32 bits
"key number").
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/uapi/linux/if_macsec.h b/include/uapi/linux/if_macsec.h
index 4c58d99..3411ed0 100644
--- a/include/uapi/linux/if_macsec.h
+++ b/include/uapi/linux/if_macsec.h
@@ -19,6 +19,8 @@
#define MACSEC_MAX_KEY_LEN 128
+#define MACSEC_KEYID_LEN 16
+
#define MACSEC_DEFAULT_CIPHER_ID 0x0080020001000001ULL
#define MACSEC_DEFAULT_CIPHER_ALT 0x0080C20001000001ULL
@@ -77,7 +79,7 @@
MACSEC_SA_ATTR_ACTIVE, /* config/dump, u8 0..1 */
MACSEC_SA_ATTR_PN, /* config/dump, u32 */
MACSEC_SA_ATTR_KEY, /* config, data */
- MACSEC_SA_ATTR_KEYID, /* config/dump, u64 */
+ MACSEC_SA_ATTR_KEYID, /* config/dump, 128-bit */
MACSEC_SA_ATTR_STATS, /* dump, nested, macsec_sa_stats_attr */
__MACSEC_SA_ATTR_END,
NUM_MACSEC_SA_ATTR = __MACSEC_SA_ATTR_END,