1/*	$NetBSD: oakley.h,v 1.5 2006/10/06 12:02:27 manu Exp $	*/
2
3/* Id: oakley.h,v 1.13 2005/05/30 20:12:43 fredsen Exp */
4
5/*
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef _OAKLEY_H
35#define _OAKLEY_H
36
37#include "vmbuf.h"
38
39/* refer to RFC 2409 */
40
41/* Attribute Classes */
42#define OAKLEY_ATTR_ENC_ALG		1 /* B */
43#define   OAKLEY_ATTR_ENC_ALG_DES		1
44#define   OAKLEY_ATTR_ENC_ALG_IDEA		2
45#define   OAKLEY_ATTR_ENC_ALG_BLOWFISH		3
46#define   OAKLEY_ATTR_ENC_ALG_RC5		4
47#define   OAKLEY_ATTR_ENC_ALG_3DES		5
48#define   OAKLEY_ATTR_ENC_ALG_CAST		6
49#define   OAKLEY_ATTR_ENC_ALG_AES		7
50#define   OAKLEY_ATTR_ENC_ALG_CAMELLIA		8
51					/*	65001 - 65535 Private Use */
52#define OAKLEY_ATTR_HASH_ALG		2 /* B */
53#define   OAKLEY_ATTR_HASH_ALG_MD5		1
54#define   OAKLEY_ATTR_HASH_ALG_SHA		2
55#define   OAKLEY_ATTR_HASH_ALG_TIGER		3
56#if defined(WITH_SHA2)
57#define   OAKLEY_ATTR_HASH_ALG_SHA2_256		4
58#define   OAKLEY_ATTR_HASH_ALG_SHA2_384		5
59#define   OAKLEY_ATTR_HASH_ALG_SHA2_512		6
60#endif
61					/*	65001 - 65535 Private Use */
62#define OAKLEY_ATTR_AUTH_METHOD		3 /* B */
63#define   OAKLEY_ATTR_AUTH_METHOD_PSKEY		1
64#define   OAKLEY_ATTR_AUTH_METHOD_DSSSIG	2
65#define   OAKLEY_ATTR_AUTH_METHOD_RSASIG	3
66#define   OAKLEY_ATTR_AUTH_METHOD_RSAENC	4
67#define   OAKLEY_ATTR_AUTH_METHOD_RSAREV	5
68#define   OAKLEY_ATTR_AUTH_METHOD_EGENC		6
69#define   OAKLEY_ATTR_AUTH_METHOD_EGREV		7
70	/* Hybrid Auth */
71#ifdef ENABLE_HYBRID
72#define   OAKLEY_ATTR_AUTH_METHOD_HYBRID_RSA_I	64221
73#define	  OAKLEY_ATTR_AUTH_METHOD_HYBRID_RSA_R	64222
74#define   OAKLEY_ATTR_AUTH_METHOD_HYBRID_DSS_I	64223
75#define   OAKLEY_ATTR_AUTH_METHOD_HYBRID_DSS_R	64224
76
77					/*	65001 - 65535 Private Use */
78
79        /* Plain Xauth */
80#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_PSKEY_I	65001
81#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_PSKEY_R	65002
82#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_DSSSIG_I	65003
83#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_DSSSIG_R	65004
84#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_RSASIG_I	65005
85#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_RSASIG_R	65006
86#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_RSAENC_I	65007
87#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_RSAENC_R	65008
88#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_RSAREV_I	65009
89#define OAKLEY_ATTR_AUTH_METHOD_XAUTH_RSAREV_R	65010
90#endif
91
92					/*	65500 -> still private
93					 * to avoid clash with GSSAPI_KRB below
94					 */
95#define FICTIVE_AUTH_METHOD_XAUTH_PSKEY_I	65500
96
97
98	/*
99	 * The following are valid when the Vendor ID is one of
100	 * the following:
101	 *
102	 *	MD5("A GSS-API Authentication Method for IKE")
103	 *	MD5("GSSAPI") (recognized by Windows 2000)
104	 *	MD5("MS NT5 ISAKMPOAKLEY") (sent by Windows 2000)
105	 */
106#define   OAKLEY_ATTR_AUTH_METHOD_GSSAPI_KRB	65001
107#define OAKLEY_ATTR_GRP_DESC		4 /* B */
108#define   OAKLEY_ATTR_GRP_DESC_MODP768		1
109#define   OAKLEY_ATTR_GRP_DESC_MODP1024		2
110#define   OAKLEY_ATTR_GRP_DESC_EC2N155		3
111#define   OAKLEY_ATTR_GRP_DESC_EC2N185		4
112#define   OAKLEY_ATTR_GRP_DESC_MODP1536		5
113#define   OAKLEY_ATTR_GRP_DESC_MODP2048		14
114#define   OAKLEY_ATTR_GRP_DESC_MODP3072		15
115#define   OAKLEY_ATTR_GRP_DESC_MODP4096		16
116#define   OAKLEY_ATTR_GRP_DESC_MODP6144		17
117#define   OAKLEY_ATTR_GRP_DESC_MODP8192		18
118					/*	32768 - 65535 Private Use */
119#define OAKLEY_ATTR_GRP_TYPE		5 /* B */
120#define   OAKLEY_ATTR_GRP_TYPE_MODP		1
121#define   OAKLEY_ATTR_GRP_TYPE_ECP		2
122#define   OAKLEY_ATTR_GRP_TYPE_EC2N		3
123					/*	65001 - 65535 Private Use */
124#define OAKLEY_ATTR_GRP_PI		6 /* V */
125#define OAKLEY_ATTR_GRP_GEN_ONE		7 /* V */
126#define OAKLEY_ATTR_GRP_GEN_TWO		8 /* V */
127#define OAKLEY_ATTR_GRP_CURVE_A		9 /* V */
128#define OAKLEY_ATTR_GRP_CURVE_B		10 /* V */
129#define OAKLEY_ATTR_SA_LD_TYPE		11 /* B */
130#define   OAKLEY_ATTR_SA_LD_TYPE_DEFAULT	1
131#define   OAKLEY_ATTR_SA_LD_TYPE_SEC		1
132#define   OAKLEY_ATTR_SA_LD_TYPE_KB		2
133#define   OAKLEY_ATTR_SA_LD_TYPE_MAX		3
134					/*	65001 - 65535 Private Use */
135#define OAKLEY_ATTR_SA_LD		12 /* V */
136#define   OAKLEY_ATTR_SA_LD_SEC_DEFAULT		28800 /* 8 hours */
137#define OAKLEY_ATTR_PRF			13 /* B */
138#define OAKLEY_ATTR_KEY_LEN		14 /* B */
139#define OAKLEY_ATTR_FIELD_SIZE		15 /* B */
140#define OAKLEY_ATTR_GRP_ORDER		16 /* V */
141#define OAKLEY_ATTR_BLOCK_SIZE		17 /* B */
142				/*	16384 - 32767 Private Use */
143
144	/*
145	 * The following are valid when the Vendor ID is one of
146	 * the following:
147	 *
148	 *	MD5("A GSS-API Authentication Method for IKE")
149	 *	MD5("GSSAPI") (recognized by Windows 2000)
150	 *	MD5("MS NT5 ISAKMPOAKLEY") (sent by Windows 2000)
151	 */
152#define OAKLEY_ATTR_GSS_ID		16384
153
154#define MAXPADLWORD	20
155
156struct dhgroup {
157	int type;
158	vchar_t *prime;
159	int gen1;
160	int gen2;
161	vchar_t *curve_a;
162	vchar_t *curve_b;
163	vchar_t *order;
164};
165
166/* certificate holder */
167typedef struct cert_t_tag {
168	u_int8_t type;		/* type of CERT, must be same to pl->v[0]*/
169	vchar_t cert;		/* pointer to the CERT */
170	vchar_t *pl;		/* CERT payload minus isakmp general header */
171} cert_t;
172
173struct ph1handle;
174struct ph2handle;
175struct isakmp_ivm;
176
177extern int oakley_get_defaultlifetime __P((void));
178
179extern int oakley_dhinit __P((void));
180extern void oakley_dhgrp_free __P((struct dhgroup *));
181extern int oakley_dh_compute __P((const struct dhgroup *,
182	vchar_t *, vchar_t *, vchar_t *, vchar_t **));
183extern int oakley_dh_generate __P((const struct dhgroup *,
184	vchar_t **, vchar_t **));
185extern int oakley_setdhgroup __P((int, struct dhgroup **));
186
187extern vchar_t *oakley_prf __P((vchar_t *, vchar_t *, struct ph1handle *));
188extern vchar_t *oakley_hash __P((vchar_t *, struct ph1handle *));
189
190extern int oakley_compute_keymat __P((struct ph2handle *, int));
191
192#if notyet
193extern vchar_t *oakley_compute_hashx __P((void));
194#endif
195extern vchar_t *oakley_compute_hash3 __P((struct ph1handle *,
196	u_int32_t, vchar_t *));
197extern vchar_t *oakley_compute_hash1 __P((struct ph1handle *,
198	u_int32_t, vchar_t *));
199extern vchar_t *oakley_ph1hash_common __P((struct ph1handle *, int));
200extern vchar_t *oakley_ph1hash_base_i __P((struct ph1handle *, int));
201extern vchar_t *oakley_ph1hash_base_r __P((struct ph1handle *, int));
202
203extern int oakley_validate_auth __P((struct ph1handle *));
204extern int oakley_getmycert __P((struct ph1handle *));
205extern int oakley_getsign __P((struct ph1handle *));
206extern vchar_t *oakley_getcr __P((struct ph1handle *));
207extern int oakley_checkcr __P((struct ph1handle *));
208extern int oakley_needcr __P((int));
209struct isakmp_gen;
210extern int oakley_savecert __P((struct ph1handle *, struct isakmp_gen *));
211extern int oakley_savecr __P((struct ph1handle *, struct isakmp_gen *));
212
213extern int oakley_skeyid __P((struct ph1handle *));
214extern int oakley_skeyid_dae __P((struct ph1handle *));
215
216extern int oakley_compute_enckey __P((struct ph1handle *));
217extern cert_t *oakley_newcert __P((void));
218extern void oakley_delcert __P((cert_t *));
219extern int oakley_newiv __P((struct ph1handle *));
220extern struct isakmp_ivm *oakley_newiv2 __P((struct ph1handle *, u_int32_t));
221extern void oakley_delivm __P((struct isakmp_ivm *));
222extern vchar_t *oakley_do_decrypt __P((struct ph1handle *,
223	vchar_t *, vchar_t *, vchar_t *));
224extern vchar_t *oakley_do_encrypt __P((struct ph1handle *,
225	vchar_t *, vchar_t *, vchar_t *));
226
227#ifdef ENABLE_HYBRID
228#define AUTHMETHOD(iph1)						     \
229    (((iph1)->rmconf->xauth &&						     \
230    (iph1)->approval->authmethod == OAKLEY_ATTR_AUTH_METHOD_XAUTH_PSKEY_I) ? \
231	FICTIVE_AUTH_METHOD_XAUTH_PSKEY_I : (iph1)->approval->authmethod)
232#define RMAUTHMETHOD(iph1)						     \
233    (((iph1)->rmconf->xauth &&						     \
234    (iph1)->rmconf->proposal->authmethod ==                                  \
235	OAKLEY_ATTR_AUTH_METHOD_XAUTH_PSKEY_I) ?                             \
236	FICTIVE_AUTH_METHOD_XAUTH_PSKEY_I :                                  \
237	(iph1)->rmconf->proposal->authmethod)
238#else
239#define AUTHMETHOD(iph1) (iph1)->approval->authmethod
240#define RMAUTHMETHOD(iph1) (iph1)->rmconf->proposal->authmethod
241#endif /* ENABLE_HYBRID */
242
243#endif /* _OAKLEY_H */
244