1 /* 2 * EAP server/peer: EAP-GPSK shared routines 3 * Copyright (c) 2006-2007, 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_GPSK_COMMON_H 16 #define EAP_GPSK_COMMON_H 17 18 #define EAP_GPSK_OPCODE_GPSK_1 1 19 #define EAP_GPSK_OPCODE_GPSK_2 2 20 #define EAP_GPSK_OPCODE_GPSK_3 3 21 #define EAP_GPSK_OPCODE_GPSK_4 4 22 #define EAP_GPSK_OPCODE_FAIL 5 23 #define EAP_GPSK_OPCODE_PROTECTED_FAIL 6 24 25 /* Failure-Code in GPSK-Fail and GPSK-Protected-Fail */ 26 #define EAP_GPSK_FAIL_PSK_NOT_FOUND 0x00000001 27 #define EAP_GPSK_FAIL_AUTHENTICATION_FAILURE 0x00000002 28 #define EAP_GPSK_FAIL_AUTHORIZATION_FAILURE 0x00000003 29 30 #define EAP_GPSK_RAND_LEN 32 31 #define EAP_GPSK_MAX_SK_LEN 32 32 #define EAP_GPSK_MAX_PK_LEN 32 33 #define EAP_GPSK_MAX_MIC_LEN 32 34 35 #define EAP_GPSK_VENDOR_IETF 0x00000000 36 #define EAP_GPSK_CIPHER_RESERVED 0x000000 37 #define EAP_GPSK_CIPHER_AES 0x000001 38 #define EAP_GPSK_CIPHER_SHA256 0x000002 39 40 41 #ifdef _MSC_VER 42 #pragma pack(push, 1) 43 #endif /* _MSC_VER */ 44 45 struct eap_gpsk_csuite { 46 u8 vendor[4]; 47 u8 specifier[2]; 48 } STRUCT_PACKED; 49 50 #ifdef _MSC_VER 51 #pragma pack(pop) 52 #endif /* _MSC_VER */ 53 54 int eap_gpsk_supported_ciphersuite(int vendor, int specifier); 55 int eap_gpsk_derive_keys(const u8 *psk, size_t psk_len, int vendor, 56 int specifier, 57 const u8 *rand_client, const u8 *rand_server, 58 const u8 *id_client, size_t id_client_len, 59 const u8 *id_server, size_t id_server_len, 60 u8 *msk, u8 *emsk, u8 *sk, size_t *sk_len, 61 u8 *pk, size_t *pk_len); 62 size_t eap_gpsk_mic_len(int vendor, int specifier); 63 int eap_gpsk_compute_mic(const u8 *sk, size_t sk_len, int vendor, 64 int specifier, const u8 *data, size_t len, u8 *mic); 65 66 #endif /* EAP_GPSK_COMMON_H */ 67