contrib/hostapd-0.4.9/eap_pax_common.h

   1 /*
   2  * WPA Supplicant / EAP-PAX shared routines
   3  * Copyright (c) 2005, Jouni Malinen <jkmaline@cc.hut.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef EAP_PAX_COMMON_H
  16 #define EAP_PAX_COMMON_H
  17
  18 struct eap_pax_hdr {
  19         u8 code;
  20         u8 identifier;
  21         u16 length; /* including code, identifier, and length */
  22         u8 type; /* EAP_TYPE_PAX */
  23         u8 op_code;
  24         u8 flags;
  25         u8 mac_id;
  26         u8 dh_group_id;
  27         u8 public_key_id;
  28         /* Followed by variable length payload and ICV */
  29 } __attribute__ ((packed));
  30
  31
  32 /* op_code: */
  33 enum {
  34         EAP_PAX_OP_STD_1 = 0x01,
  35         EAP_PAX_OP_STD_2 = 0x02,
  36         EAP_PAX_OP_STD_3 = 0x03,
  37         EAP_PAX_OP_SEC_1 = 0x11,
  38         EAP_PAX_OP_SEC_2 = 0x12,
  39         EAP_PAX_OP_SEC_3 = 0x13,
  40         EAP_PAX_OP_SEC_4 = 0x14,
  41         EAP_PAX_OP_SEC_5 = 0x15,
  42         EAP_PAX_OP_ACK = 0x21
  43 };
  44
  45 /* flags: */
  46 #define EAP_PAX_FLAGS_MF                        0x01
  47 #define EAP_PAX_FLAGS_CE                        0x02
  48
  49 /* mac_id: */
  50 #define EAP_PAX_MAC_HMAC_SHA1_128               0x01
  51 #define EAP_PAX_MAC_AES_CBC_MAC_128             0x02
  52
  53 /* dh_group_id: */
  54 #define EAP_PAX_DH_GROUP_NONE                   0x00
  55 #define EAP_PAX_DH_GROUP_3072_MODP              0x01
  56
  57 /* public_key_id: */
  58 #define EAP_PAX_PUBLIC_KEY_NONE                 0x00
  59 #define EAP_PAX_PUBLIC_KEY_RSA_OAEP_2048        0x01
  60
  61
  62 #define EAP_PAX_RAND_LEN 32
  63 #define EAP_PAX_MSK_LEN 64
  64 #define EAP_PAX_MAC_LEN 16
  65 #define EAP_PAX_ICV_LEN 16
  66 #define EAP_PAX_AK_LEN 16
  67 #define EAP_PAX_MK_LEN 16
  68 #define EAP_PAX_CK_LEN 16
  69 #define EAP_PAX_ICK_LEN 16
  70
  71
  72 int eap_pax_kdf(u8 mac_id, const u8 *key, size_t key_len,
  73                 const char *identifier,
  74                 const u8 *entropy, size_t entropy_len,
  75                 size_t output_len, u8 *output);
  76 int eap_pax_mac(u8 mac_id, const u8 *key, size_t key_len,
  77                 const u8 *data1, size_t data1_len,
  78                 const u8 *data2, size_t data2_len,
  79                 const u8 *data3, size_t data3_len,
  80                 u8 *mac);
  81 int eap_pax_initial_key_derivation(u8 mac_id, const u8 *ak, const u8 *e,
  82                                    u8 *mk, u8 *ck, u8 *ick);
  83
  84 #endif /* EAP_PAX_COMMON_H */