1/*
2 * EAP peer method: EAP-TLV (draft-josefsson-pppext-eap-tls-eap-07.txt)
3 * Copyright (c) 2004-2008, 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_TLV_H
16#define EAP_TLV_H
17
18/* EAP-TLV TLVs (draft-josefsson-ppext-eap-tls-eap-07.txt) */
19#define EAP_TLV_RESULT_TLV 3 /* Acknowledged Result */
20#define EAP_TLV_NAK_TLV 4
21#define EAP_TLV_CRYPTO_BINDING_TLV 5
22#define EAP_TLV_CONNECTION_BINDING_TLV 6
23#define EAP_TLV_VENDOR_SPECIFIC_TLV 7
24#define EAP_TLV_URI_TLV 8
25#define EAP_TLV_EAP_PAYLOAD_TLV 9
26#define EAP_TLV_INTERMEDIATE_RESULT_TLV 10
27#define EAP_TLV_PAC_TLV 11 /* draft-cam-winget-eap-fast-01.txt */
28#define EAP_TLV_CRYPTO_BINDING_TLV_ 12 /* draft-cam-winget-eap-fast-01.txt */
29
30#define EAP_TLV_RESULT_SUCCESS 1
31#define EAP_TLV_RESULT_FAILURE 2
32
33#define EAP_TLV_TYPE_MANDATORY 0x8000
34
35#ifdef _MSC_VER
36#pragma pack(push, 1)
37#endif /* _MSC_VER */
38
39struct eap_tlv_hdr {
40	u16 tlv_type;
41	u16 length;
42} STRUCT_PACKED;
43
44struct eap_tlv_nak_tlv {
45	u16 tlv_type;
46	u16 length;
47	u32 vendor_id;
48	u16 nak_type;
49} STRUCT_PACKED;
50
51struct eap_tlv_result_tlv {
52	u16 tlv_type;
53	u16 length;
54	u16 status;
55} STRUCT_PACKED;
56
57struct eap_tlv_intermediate_result_tlv {
58	u16 tlv_type;
59	u16 length;
60	u16 status;
61} STRUCT_PACKED;
62
63struct eap_tlv_crypto_binding__tlv {
64	u16 tlv_type;
65	u16 length;
66	u8 reserved;
67	u8 version;
68	u8 received_version;
69	u8 subtype;
70	u8 nonce[32];
71	u8 compound_mac[20];
72} STRUCT_PACKED;
73
74struct eap_tlv_pac_ack_tlv {
75	u16 tlv_type;
76	u16 length;
77	u16 pac_type;
78	u16 pac_len;
79	u16 result;
80} STRUCT_PACKED;
81
82#ifdef _MSC_VER
83#pragma pack(pop)
84#endif /* _MSC_VER */
85
86#define EAP_TLV_CRYPTO_BINDING_SUBTYPE_REQUEST 0
87#define EAP_TLV_CRYPTO_BINDING_SUBTYPE_RESPONSE 1
88
89
90u8 * eap_tlv_build_nak(int id, u16 nak_type, size_t *resp_len);
91u8 * eap_tlv_build_result(int id, u16 status, size_t *resp_len);
92int eap_tlv_process(struct eap_sm *sm, struct eap_method_ret *ret,
93		    const struct eap_hdr *hdr, u8 **resp, size_t *resp_len,
94		    int force_failure);
95
96#endif /* EAP_TLV_H */
97