1/*	$KAME: oakley.h,v 1.28 2001/12/12 18:23:42 sakane Exp $	*/
2
3/*
4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/* refer to RFC 2409 */
33
34/* Attribute Classes */
35#define OAKLEY_ATTR_ENC_ALG		1 /* B */
36#define   OAKLEY_ATTR_ENC_ALG_DES		1
37#define   OAKLEY_ATTR_ENC_ALG_IDEA		2
38#define   OAKLEY_ATTR_ENC_ALG_BLOWFISH		3
39#define   OAKLEY_ATTR_ENC_ALG_RC5		4
40#define   OAKLEY_ATTR_ENC_ALG_3DES		5
41#define   OAKLEY_ATTR_ENC_ALG_CAST		6
42#define   OAKLEY_ATTR_ENC_ALG_RIJNDAEL		7
43#define   OAKLEY_ATTR_ENC_ALG_AES		7
44					/*	65001 - 65535 Private Use */
45#define OAKLEY_ATTR_HASH_ALG		2 /* B */
46#define   OAKLEY_ATTR_HASH_ALG_MD5		1
47#define   OAKLEY_ATTR_HASH_ALG_SHA		2
48#define   OAKLEY_ATTR_HASH_ALG_TIGER		3
49#define   OAKLEY_ATTR_HASH_ALG_SHA2_256		4
50#define   OAKLEY_ATTR_HASH_ALG_SHA2_384		5
51#define   OAKLEY_ATTR_HASH_ALG_SHA2_512		6
52					/*	65001 - 65535 Private Use */
53#define OAKLEY_ATTR_AUTH_METHOD		3 /* B */
54#define   OAKLEY_ATTR_AUTH_METHOD_PSKEY		1
55#define   OAKLEY_ATTR_AUTH_METHOD_DSSSIG	2
56#define   OAKLEY_ATTR_AUTH_METHOD_RSASIG	3
57#define   OAKLEY_ATTR_AUTH_METHOD_RSAENC	4
58#define   OAKLEY_ATTR_AUTH_METHOD_RSAREV	5
59#define   OAKLEY_ATTR_AUTH_METHOD_EGENC		6
60#define   OAKLEY_ATTR_AUTH_METHOD_EGREV		7
61					/*	65001 - 65535 Private Use */
62	/*
63	 * The following are valid when the Vendor ID is one of
64	 * the following:
65	 *
66	 *	MD5("A GSS-API Authentication Method for IKE")
67	 *	MD5("GSSAPI") (recognized by Windows 2000)
68	 *	MD5("MS NT5 ISAKMPOAKLEY") (sent by Windows 2000)
69	 */
70#define   OAKLEY_ATTR_AUTH_METHOD_GSSAPI_KRB	65001
71#define OAKLEY_ATTR_GRP_DESC		4 /* B */
72#define   OAKLEY_ATTR_GRP_DESC_MODP768		1
73#define   OAKLEY_ATTR_GRP_DESC_MODP1024		2
74#define   OAKLEY_ATTR_GRP_DESC_EC2N155		3
75#define   OAKLEY_ATTR_GRP_DESC_EC2N185		4
76#define   OAKLEY_ATTR_GRP_DESC_MODP1536		5
77#define   OAKLEY_ATTR_GRP_DESC_MODP2048		42048	/* these value are */
78#define   OAKLEY_ATTR_GRP_DESC_MODP3072		43072	/* make consensus  */
79#define   OAKLEY_ATTR_GRP_DESC_MODP4096		44096	/* at the bake off */
80#define   OAKLEY_ATTR_GRP_DESC_MODP8192		48192	/* in helsinki     */
81#define   OAKLEY_ATTR_GRP_DESC_MODP6144		46144
82					/*	32768 - 65535 Private Use */
83#define OAKLEY_ATTR_GRP_TYPE		5 /* B */
84#define   OAKLEY_ATTR_GRP_TYPE_MODP		1
85#define   OAKLEY_ATTR_GRP_TYPE_ECP		2
86#define   OAKLEY_ATTR_GRP_TYPE_EC2N		3
87					/*	65001 - 65535 Private Use */
88#define OAKLEY_ATTR_GRP_PI		6 /* V */
89#define OAKLEY_ATTR_GRP_GEN_ONE		7 /* V */
90#define OAKLEY_ATTR_GRP_GEN_TWO		8 /* V */
91#define OAKLEY_ATTR_GRP_CURVE_A		9 /* V */
92#define OAKLEY_ATTR_GRP_CURVE_B		10 /* V */
93#define OAKLEY_ATTR_SA_LD_TYPE		11 /* B */
94#define   OAKLEY_ATTR_SA_LD_TYPE_DEFAULT	1
95#define   OAKLEY_ATTR_SA_LD_TYPE_SEC		1
96#define   OAKLEY_ATTR_SA_LD_TYPE_KB		2
97#define   OAKLEY_ATTR_SA_LD_TYPE_MAX		3
98					/*	65001 - 65535 Private Use */
99#define OAKLEY_ATTR_SA_LD		12 /* V */
100#define   OAKLEY_ATTR_SA_LD_SEC_DEFAULT		28800 /* 8 hours */
101#define OAKLEY_ATTR_PRF			13 /* B */
102#define OAKLEY_ATTR_KEY_LEN		14 /* B */
103#define OAKLEY_ATTR_FIELD_SIZE		15 /* B */
104#define OAKLEY_ATTR_GRP_ORDER		16 /* V */
105#define OAKLEY_ATTR_BLOCK_SIZE		17 /* B */
106				/*	16384 - 32767 Private Use */
107
108	/*
109	 * The following are valid when the Vendor ID is one of
110	 * the following:
111	 *
112	 *	MD5("A GSS-API Authentication Method for IKE")
113	 *	MD5("GSSAPI") (recognized by Windows 2000)
114	 *	MD5("MS NT5 ISAKMPOAKLEY") (sent by Windows 2000)
115	 */
116#define OAKLEY_ATTR_GSS_ID		16384
117
118#define MAXPADLWORD	20
119
120struct dhgroup {
121	int type;
122	vchar_t *prime;
123	int gen1;
124	int gen2;
125	vchar_t *curve_a;
126	vchar_t *curve_b;
127	vchar_t *order;
128};
129
130/* certificate holder */
131typedef struct cert_t_tag {
132	u_int8_t type;		/* type of CERT, must be same to pl->v[0]*/
133	vchar_t cert;		/* pointer to the CERT */
134	vchar_t *pl;		/* CERT payload minus isakmp general header */
135} cert_t;
136
137struct ph1handle;
138struct ph2handle;
139struct isakmp_ivm;
140
141extern int oakley_get_defaultlifetime __P((void));
142
143extern int oakley_dhinit __P((void));
144extern void oakley_dhgrp_free __P((struct dhgroup *));
145extern int oakley_dh_compute __P((const struct dhgroup *,
146	vchar_t *, vchar_t *, vchar_t *, vchar_t **));
147extern int oakley_dh_generate __P((const struct dhgroup *,
148	vchar_t **, vchar_t **));
149extern int oakley_setdhgroup __P((int, struct dhgroup **));
150
151extern vchar_t *oakley_prf __P((vchar_t *, vchar_t *, struct ph1handle *));
152extern vchar_t *oakley_hash __P((vchar_t *, struct ph1handle *));
153
154extern int oakley_compute_keymat __P((struct ph2handle *, int));
155
156#if notyet
157extern vchar_t *oakley_compute_hashx __P((void));
158#endif
159extern vchar_t *oakley_compute_hash3 __P((struct ph1handle *,
160	u_int32_t, vchar_t *));
161extern vchar_t *oakley_compute_hash1 __P((struct ph1handle *,
162	u_int32_t, vchar_t *));
163extern vchar_t *oakley_ph1hash_common __P((struct ph1handle *, int));
164extern vchar_t *oakley_ph1hash_base_i __P((struct ph1handle *, int));
165extern vchar_t *oakley_ph1hash_base_r __P((struct ph1handle *, int));
166
167extern int oakley_validate_auth __P((struct ph1handle *));
168#ifdef HAVE_SIGNING_C
169extern int oakley_getmycert __P((struct ph1handle *));
170extern int oakley_getsign __P((struct ph1handle *));
171extern vchar_t *oakley_getcr __P((struct ph1handle *));
172extern int oakley_checkcr __P((struct ph1handle *));
173#endif
174extern int oakley_needcr __P((int));
175struct isakmp_gen;
176extern int oakley_savecert __P((struct ph1handle *, struct isakmp_gen *));
177extern int oakley_savecr __P((struct ph1handle *, struct isakmp_gen *));
178
179extern int oakley_skeyid __P((struct ph1handle *));
180extern int oakley_skeyid_dae __P((struct ph1handle *));
181
182extern int oakley_compute_enckey __P((struct ph1handle *));
183extern cert_t *oakley_newcert __P((void));
184extern void oakley_delcert __P((cert_t *));
185extern int oakley_newiv __P((struct ph1handle *));
186extern struct isakmp_ivm *oakley_newiv2 __P((struct ph1handle *, u_int32_t));
187extern void oakley_delivm __P((struct isakmp_ivm *));
188extern vchar_t *oakley_do_decrypt __P((struct ph1handle *,
189	vchar_t *, vchar_t *, vchar_t *));
190extern vchar_t *oakley_do_encrypt __P((struct ph1handle *,
191	vchar_t *, vchar_t *, vchar_t *));
192