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 software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #ifndef EAP_PAX_COMMON_H
  10 #define EAP_PAX_COMMON_H
  11
  12 #ifdef _MSC_VER
  13 #pragma pack(push, 1)
  14 #endif /* _MSC_VER */
  15
  16 struct eap_pax_hdr {
  17         u8 op_code;
  18         u8 flags;
  19         u8 mac_id;
  20         u8 dh_group_id;
  21         u8 public_key_id;
  22         /* Followed by variable length payload and ICV */
  23 } STRUCT_PACKED;
  24
  25 #ifdef _MSC_VER
  26 #pragma pack(pop)
  27 #endif /* _MSC_VER */
  28
  29
  30 /* op_code: */
  31 enum {
  32         EAP_PAX_OP_STD_1 = 0x01,
  33         EAP_PAX_OP_STD_2 = 0x02,
  34         EAP_PAX_OP_STD_3 = 0x03,
  35         EAP_PAX_OP_SEC_1 = 0x11,
  36         EAP_PAX_OP_SEC_2 = 0x12,
  37         EAP_PAX_OP_SEC_3 = 0x13,
  38         EAP_PAX_OP_SEC_4 = 0x14,
  39         EAP_PAX_OP_SEC_5 = 0x15,
  40         EAP_PAX_OP_ACK = 0x21
  41 };
  42
  43 /* flags: */
  44 #define EAP_PAX_FLAGS_MF                        0x01
  45 #define EAP_PAX_FLAGS_CE                        0x02
  46 #define EAP_PAX_FLAGS_AI                        0x04
  47
  48 /* mac_id: */
  49 #define EAP_PAX_MAC_HMAC_SHA1_128               0x01
  50 #define EAP_PAX_HMAC_SHA256_128                 0x02
  51
  52 /* dh_group_id: */
  53 #define EAP_PAX_DH_GROUP_NONE                   0x00
  54 #define EAP_PAX_DH_GROUP_2048_MODP              0x01
  55 #define EAP_PAX_DH_GROUP_3072_MODP              0x02
  56 #define EAP_PAX_DH_GROUP_NIST_ECC_P_256         0x03
  57
  58 /* public_key_id: */
  59 #define EAP_PAX_PUBLIC_KEY_NONE                 0x00
  60 #define EAP_PAX_PUBLIC_KEY_RSAES_OAEP           0x01
  61 #define EAP_PAX_PUBLIC_KEY_RSA_PKCS1_V1_5       0x02
  62 #define EAP_PAX_PUBLIC_KEY_EL_GAMAL_NIST_ECC    0x03
  63
  64 /* ADE type: */
  65 #define EAP_PAX_ADE_VENDOR_SPECIFIC             0x01
  66 #define EAP_PAX_ADE_CLIENT_CHANNEL_BINDING      0x02
  67 #define EAP_PAX_ADE_SERVER_CHANNEL_BINDING      0x03
  68
  69
  70 #define EAP_PAX_RAND_LEN 32
  71 #define EAP_PAX_MAC_LEN 16
  72 #define EAP_PAX_ICV_LEN 16
  73 #define EAP_PAX_AK_LEN 16
  74 #define EAP_PAX_MK_LEN 16
  75 #define EAP_PAX_CK_LEN 16
  76 #define EAP_PAX_ICK_LEN 16
  77
  78
  79 int eap_pax_kdf(u8 mac_id, const u8 *key, size_t key_len,
  80                 const char *identifier,
  81                 const u8 *entropy, size_t entropy_len,
  82                 size_t output_len, u8 *output);
  83 int eap_pax_mac(u8 mac_id, const u8 *key, size_t key_len,
  84                 const u8 *data1, size_t data1_len,
  85                 const u8 *data2, size_t data2_len,
  86                 const u8 *data3, size_t data3_len,
  87                 u8 *mac);
  88 int eap_pax_initial_key_derivation(u8 mac_id, const u8 *ak, const u8 *e,
  89                                    u8 *mk, u8 *ck, u8 *ick);
  90
  91 #endif /* EAP_PAX_COMMON_H */