eap_fast_common.h
Go to the documentation of this file.
00001 /*
00002  * EAP-FAST definitions (RFC 4851)
00003  * Copyright (c) 2004-2008, 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_FAST_H
00016 #define EAP_FAST_H
00017 
00018 #define EAP_FAST_VERSION 1
00019 #define EAP_FAST_KEY_LEN 64
00020 #define EAP_FAST_SIMCK_LEN 40
00021 #define EAP_FAST_SKS_LEN 40
00022 #define EAP_FAST_CMK_LEN 20
00023 
00024 #define TLS_EXT_PAC_OPAQUE 35
00025 
00026 /*
00027  * RFC 5422: Section 4.2.1 - Formats for PAC TLV Attributes / Type Field
00028  * Note: bit 0x8000 (Mandatory) and bit 0x4000 (Reserved) are also defined
00029  * in the general PAC TLV format (Section 4.2).
00030  */
00031 #define PAC_TYPE_PAC_KEY 1
00032 #define PAC_TYPE_PAC_OPAQUE 2
00033 #define PAC_TYPE_CRED_LIFETIME 3
00034 #define PAC_TYPE_A_ID 4
00035 #define PAC_TYPE_I_ID 5
00036 /*
00037  * 6 was previous assigned for SERVER_PROTECTED_DATA, but
00038  * draft-cam-winget-eap-fast-provisioning-02.txt changed this to Reserved.
00039  */
00040 #define PAC_TYPE_A_ID_INFO 7
00041 #define PAC_TYPE_PAC_ACKNOWLEDGEMENT 8
00042 #define PAC_TYPE_PAC_INFO 9
00043 #define PAC_TYPE_PAC_TYPE 10
00044 
00045 #ifdef _MSC_VER
00046 #pragma pack(push, 1)
00047 #endif /* _MSC_VER */
00048 
00049 struct pac_tlv_hdr {
00050         be16 type;
00051         be16 len;
00052 } STRUCT_PACKED;
00053 
00054 #ifdef _MSC_VER
00055 #pragma pack(pop)
00056 #endif /* _MSC_VER */
00057 
00058 
00059 #define EAP_FAST_PAC_KEY_LEN 32
00060 
00061 /* RFC 5422: 4.2.6 PAC-Type TLV */
00062 #define PAC_TYPE_TUNNEL_PAC 1
00063 /* Application Specific Short Lived PACs (only in volatile storage) */
00064 /* User Authorization PAC */
00065 #define PAC_TYPE_USER_AUTHORIZATION 3
00066 /* Application Specific Long Lived PACs */
00067 /* Machine Authentication PAC */
00068 #define PAC_TYPE_MACHINE_AUTHENTICATION 2
00069 
00070 
00071 /*
00072  * RFC 5422:
00073  * Section 3.3 - Key Derivations Used in the EAP-FAST Provisioning Exchange
00074  */
00075 struct eap_fast_key_block_provisioning {
00076         /* Extra key material after TLS key_block */
00077         u8 session_key_seed[EAP_FAST_SKS_LEN];
00078         u8 server_challenge[16]; /* MSCHAPv2 ServerChallenge */
00079         u8 client_challenge[16]; /* MSCHAPv2 ClientChallenge */
00080 };
00081 
00082 
00083 struct wpabuf;
00084 struct tls_connection;
00085 
00086 struct eap_fast_tlv_parse {
00087         u8 *eap_payload_tlv;
00088         size_t eap_payload_tlv_len;
00089         struct eap_tlv_crypto_binding_tlv *crypto_binding;
00090         size_t crypto_binding_len;
00091         int iresult;
00092         int result;
00093         int request_action;
00094         u8 *pac;
00095         size_t pac_len;
00096 };
00097 
00098 void eap_fast_put_tlv_hdr(struct wpabuf *buf, u16 type, u16 len);
00099 void eap_fast_put_tlv(struct wpabuf *buf, u16 type, const void *data,
00100                       u16 len);
00101 void eap_fast_put_tlv_buf(struct wpabuf *buf, u16 type,
00102                           const struct wpabuf *data);
00103 struct wpabuf * eap_fast_tlv_eap_payload(struct wpabuf *buf);
00104 void eap_fast_derive_master_secret(const u8 *pac_key, const u8 *server_random,
00105                                    const u8 *client_random, u8 *master_secret);
00106 u8 * eap_fast_derive_key(void *ssl_ctx, struct tls_connection *conn,
00107                          const char *label, size_t len);
00108 void eap_fast_derive_eap_msk(const u8 *simck, u8 *msk);
00109 void eap_fast_derive_eap_emsk(const u8 *simck, u8 *emsk);
00110 int eap_fast_parse_tlv(struct eap_fast_tlv_parse *tlv,
00111                        int tlv_type, u8 *pos, int len);
00112 
00113 #endif /* EAP_FAST_H */


wpa_supplicant_node
Author(s): Package maintained by Blaise Gassend
autogenerated on Thu Jan 2 2014 11:25:13