contrib/hostapd/src/eap_common/eap_pax_common.h

   1 /*
   2  * EAP server/peer: EAP-PAX shared routines
   3  * Copyright (c) 2005-2007, Jouni Malinen <j@w1.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 #ifdef _MSC_VER
  19 #pragma pack(push, 1)
  20 #endif /* _MSC_VER */
  21
  22 struct eap_pax_hdr {
  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 } STRUCT_PACKED;
  30
  31 #ifdef _MSC_VER
  32 #pragma pack(pop)
  33 #endif /* _MSC_VER */
  34
  35
  36 /* op_code: */
  37 enum {
  38         EAP_PAX_OP_STD_1 = 0x01,
  39         EAP_PAX_OP_STD_2 = 0x02,
  40         EAP_PAX_OP_STD_3 = 0x03,
  41         EAP_PAX_OP_SEC_1 = 0x11,
  42         EAP_PAX_OP_SEC_2 = 0x12,
  43         EAP_PAX_OP_SEC_3 = 0x13,
  44         EAP_PAX_OP_SEC_4 = 0x14,
  45         EAP_PAX_OP_SEC_5 = 0x15,
  46         EAP_PAX_OP_ACK = 0x21
  47 };
  48
  49 /* flags: */
  50 #define EAP_PAX_FLAGS_MF                        0x01
  51 #define EAP_PAX_FLAGS_CE                        0x02
  52 #define EAP_PAX_FLAGS_AI                        0x04
  53
  54 /* mac_id: */
  55 #define EAP_PAX_MAC_HMAC_SHA1_128               0x01
  56 #define EAP_PAX_HMAC_SHA256_128                 0x02
  57
  58 /* dh_group_id: */
  59 #define EAP_PAX_DH_GROUP_NONE                   0x00
  60 #define EAP_PAX_DH_GROUP_2048_MODP              0x01
  61 #define EAP_PAX_DH_GROUP_3072_MODP              0x02
  62 #define EAP_PAX_DH_GROUP_NIST_ECC_P_256         0x03
  63
  64 /* public_key_id: */
  65 #define EAP_PAX_PUBLIC_KEY_NONE                 0x00
  66 #define EAP_PAX_PUBLIC_KEY_RSAES_OAEP           0x01
  67 #define EAP_PAX_PUBLIC_KEY_RSA_PKCS1_V1_5       0x02
  68 #define EAP_PAX_PUBLIC_KEY_EL_GAMAL_NIST_ECC    0x03
  69
  70 /* ADE type: */
  71 #define EAP_PAX_ADE_VENDOR_SPECIFIC             0x01
  72 #define EAP_PAX_ADE_CLIENT_CHANNEL_BINDING      0x02
  73 #define EAP_PAX_ADE_SERVER_CHANNEL_BINDING      0x03
  74
  75
  76 #define EAP_PAX_RAND_LEN 32
  77 #define EAP_PAX_MAC_LEN 16
  78 #define EAP_PAX_ICV_LEN 16
  79 #define EAP_PAX_AK_LEN 16
  80 #define EAP_PAX_MK_LEN 16
  81 #define EAP_PAX_CK_LEN 16
  82 #define EAP_PAX_ICK_LEN 16
  83
  84
  85 int eap_pax_kdf(u8 mac_id, const u8 *key, size_t key_len,
  86                 const char *identifier,
  87                 const u8 *entropy, size_t entropy_len,
  88                 size_t output_len, u8 *output);
  89 int eap_pax_mac(u8 mac_id, const u8 *key, size_t key_len,
  90                 const u8 *data1, size_t data1_len,
  91                 const u8 *data2, size_t data2_len,
  92                 const u8 *data3, size_t data3_len,
  93                 u8 *mac);
  94 int eap_pax_initial_key_derivation(u8 mac_id, const u8 *ak, const u8 *e,
  95                                    u8 *mk, u8 *ck, u8 *ick);
  96
  97 #endif /* EAP_PAX_COMMON_H */