xref: /freebsd/contrib/wpa/src/eap_common/eap_pax_common.h (revision 39beb93c3f8bdbf72a61fda42300b5ebed7390c8)
1 /*
2  * EAP server/peer: EAP-PAX shared routines
3  * Copyright (c) 2005-2007, 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_PAX_COMMON_H
16 #define EAP_PAX_COMMON_H
17 
18 #ifdef _MSC_VER
19 #pragma pack(push, 1)
20 #endif /* _MSC_VER */
21 
22 struct eap_pax_hdr {
23 	u8 op_code;
24 	u8 flags;
25 	u8 mac_id;
26 	u8 dh_group_id;
27 	u8 public_key_id;
28 	/* Followed by variable length payload and ICV */
29 } STRUCT_PACKED;
30 
31 #ifdef _MSC_VER
32 #pragma pack(pop)
33 #endif /* _MSC_VER */
34 
35 
36 /* op_code: */
37 enum {
38 	EAP_PAX_OP_STD_1 = 0x01,
39 	EAP_PAX_OP_STD_2 = 0x02,
40 	EAP_PAX_OP_STD_3 = 0x03,
41 	EAP_PAX_OP_SEC_1 = 0x11,
42 	EAP_PAX_OP_SEC_2 = 0x12,
43 	EAP_PAX_OP_SEC_3 = 0x13,
44 	EAP_PAX_OP_SEC_4 = 0x14,
45 	EAP_PAX_OP_SEC_5 = 0x15,
46 	EAP_PAX_OP_ACK = 0x21
47 };
48 
49 /* flags: */
50 #define EAP_PAX_FLAGS_MF			0x01
51 #define EAP_PAX_FLAGS_CE			0x02
52 #define EAP_PAX_FLAGS_AI			0x04
53 
54 /* mac_id: */
55 #define EAP_PAX_MAC_HMAC_SHA1_128		0x01
56 #define EAP_PAX_HMAC_SHA256_128			0x02
57 
58 /* dh_group_id: */
59 #define EAP_PAX_DH_GROUP_NONE			0x00
60 #define EAP_PAX_DH_GROUP_2048_MODP		0x01
61 #define EAP_PAX_DH_GROUP_3072_MODP		0x02
62 #define EAP_PAX_DH_GROUP_NIST_ECC_P_256		0x03
63 
64 /* public_key_id: */
65 #define EAP_PAX_PUBLIC_KEY_NONE			0x00
66 #define EAP_PAX_PUBLIC_KEY_RSAES_OAEP		0x01
67 #define EAP_PAX_PUBLIC_KEY_RSA_PKCS1_V1_5	0x02
68 #define EAP_PAX_PUBLIC_KEY_EL_GAMAL_NIST_ECC	0x03
69 
70 /* ADE type: */
71 #define EAP_PAX_ADE_VENDOR_SPECIFIC		0x01
72 #define EAP_PAX_ADE_CLIENT_CHANNEL_BINDING	0x02
73 #define EAP_PAX_ADE_SERVER_CHANNEL_BINDING	0x03
74 
75 
76 #define EAP_PAX_RAND_LEN 32
77 #define EAP_PAX_MAC_LEN 16
78 #define EAP_PAX_ICV_LEN 16
79 #define EAP_PAX_AK_LEN 16
80 #define EAP_PAX_MK_LEN 16
81 #define EAP_PAX_CK_LEN 16
82 #define EAP_PAX_ICK_LEN 16
83 
84 
85 int eap_pax_kdf(u8 mac_id, const u8 *key, size_t key_len,
86 		const char *identifier,
87 		const u8 *entropy, size_t entropy_len,
88 		size_t output_len, u8 *output);
89 int eap_pax_mac(u8 mac_id, const u8 *key, size_t key_len,
90 		const u8 *data1, size_t data1_len,
91 		const u8 *data2, size_t data2_len,
92 		const u8 *data3, size_t data3_len,
93 		u8 *mac);
94 int eap_pax_initial_key_derivation(u8 mac_id, const u8 *ak, const u8 *e,
95 				   u8 *mk, u8 *ck, u8 *ick);
96 
97 #endif /* EAP_PAX_COMMON_H */
98