wpa_supplicant: eap_pax_common.h Source File

00001 /*
00002  * EAP server/peer: EAP-PAX shared routines
00003  * Copyright (c) 2005-2007, Jouni Malinen <j@w1.fi>
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 2 as
00007  * published by the Free Software Foundation.
00008  *
00009  * Alternatively, this software may be distributed under the terms of BSD
00010  * license.
00011  *
00012  * See README and COPYING for more details.
00013  */
00014 
00015 #ifndef EAP_PAX_COMMON_H
00016 #define EAP_PAX_COMMON_H
00017 
00018 #ifdef _MSC_VER
00019 #pragma pack(push, 1)
00020 #endif /* _MSC_VER */
00021 
00022 struct eap_pax_hdr {
00023         u8 op_code;
00024         u8 flags;
00025         u8 mac_id;
00026         u8 dh_group_id;
00027         u8 public_key_id;
00028         /* Followed by variable length payload and ICV */
00029 } STRUCT_PACKED;
00030 
00031 #ifdef _MSC_VER
00032 #pragma pack(pop)
00033 #endif /* _MSC_VER */
00034 
00035 
00036 /* op_code: */
00037 enum {
00038         EAP_PAX_OP_STD_1 = 0x01,
00039         EAP_PAX_OP_STD_2 = 0x02,
00040         EAP_PAX_OP_STD_3 = 0x03,
00041         EAP_PAX_OP_SEC_1 = 0x11,
00042         EAP_PAX_OP_SEC_2 = 0x12,
00043         EAP_PAX_OP_SEC_3 = 0x13,
00044         EAP_PAX_OP_SEC_4 = 0x14,
00045         EAP_PAX_OP_SEC_5 = 0x15,
00046         EAP_PAX_OP_ACK = 0x21
00047 };
00048 
00049 /* flags: */
00050 #define EAP_PAX_FLAGS_MF                        0x01
00051 #define EAP_PAX_FLAGS_CE                        0x02
00052 #define EAP_PAX_FLAGS_AI                        0x04
00053 
00054 /* mac_id: */
00055 #define EAP_PAX_MAC_HMAC_SHA1_128               0x01
00056 #define EAP_PAX_HMAC_SHA256_128                 0x02
00057 
00058 /* dh_group_id: */
00059 #define EAP_PAX_DH_GROUP_NONE                   0x00
00060 #define EAP_PAX_DH_GROUP_2048_MODP              0x01
00061 #define EAP_PAX_DH_GROUP_3072_MODP              0x02
00062 #define EAP_PAX_DH_GROUP_NIST_ECC_P_256         0x03
00063 
00064 /* public_key_id: */
00065 #define EAP_PAX_PUBLIC_KEY_NONE                 0x00
00066 #define EAP_PAX_PUBLIC_KEY_RSAES_OAEP           0x01
00067 #define EAP_PAX_PUBLIC_KEY_RSA_PKCS1_V1_5       0x02
00068 #define EAP_PAX_PUBLIC_KEY_EL_GAMAL_NIST_ECC    0x03
00069 
00070 /* ADE type: */
00071 #define EAP_PAX_ADE_VENDOR_SPECIFIC             0x01
00072 #define EAP_PAX_ADE_CLIENT_CHANNEL_BINDING      0x02
00073 #define EAP_PAX_ADE_SERVER_CHANNEL_BINDING      0x03
00074 
00075 
00076 #define EAP_PAX_RAND_LEN 32
00077 #define EAP_PAX_MAC_LEN 16
00078 #define EAP_PAX_ICV_LEN 16
00079 #define EAP_PAX_AK_LEN 16
00080 #define EAP_PAX_MK_LEN 16
00081 #define EAP_PAX_CK_LEN 16
00082 #define EAP_PAX_ICK_LEN 16
00083 
00084 
00085 int eap_pax_kdf(u8 mac_id, const u8 *key, size_t key_len,
00086                 const char *identifier,
00087                 const u8 *entropy, size_t entropy_len,
00088                 size_t output_len, u8 *output);
00089 int eap_pax_mac(u8 mac_id, const u8 *key, size_t key_len,
00090                 const u8 *data1, size_t data1_len,
00091                 const u8 *data2, size_t data2_len,
00092                 const u8 *data3, size_t data3_len,
00093                 u8 *mac);
00094 int eap_pax_initial_key_derivation(u8 mac_id, const u8 *ak, const u8 *e,
00095                                    u8 *mk, u8 *ck, u8 *ick);
00096 
00097 #endif /* EAP_PAX_COMMON_H */