EAPOL_KEY_TYPE_WPA = 254
};
-#define IEEE8021X_REPLAY_COUNTER_LEN 8
-#define IEEE8021X_KEY_SIGN_LEN 16
-#define IEEE8021X_KEY_IV_LEN 16
-
-#define IEEE8021X_KEY_INDEX_FLAG 0x80
-#define IEEE8021X_KEY_INDEX_MASK 0x03
-
-struct ieee802_1x_eapol_key {
- unsigned char type;
- unsigned short key_length;
- /*
- * does not repeat within the life of the keying material used to
- * encrypt the Key field; 64-bit NTP timestamp MAY be used here
- */
- unsigned char replay_counter[IEEE8021X_REPLAY_COUNTER_LEN];
- unsigned char key_iv[IEEE8021X_KEY_IV_LEN]; /* cryptographically random
- * number
- */
- unsigned char key_index; /*
- * key flag in the most significant bit:
- * 0 = broadcast (default key),
- * 1 = unicast (key mapping key);
- * key index is in the 7 least
- * significant bits
- */
- /*
- * HMAC-MD5 message integrity check computed with MS-MPPE-Send-Key as
- * the key
- */
- unsigned char key_signature[IEEE8021X_KEY_SIGN_LEN];
-
- /*
- * followed by key: if packet body length = 44 + key length, then the
- * key field (of key_length bytes) contains the key in encrypted form;
- * if packet body length = 44, key field is absent and key_length
- * represents the number of least significant octets from
- * MS-MPPE-Send-Key attribute to be used as the keying material;
- * RC4 key used in encryption = Key-IV + MS-MPPE-Recv-Key
- */
-} __packed;
-
#define WPA_NONCE_LEN 32
#define WPA_REPLAY_COUNTER_LEN 8