1 /*	$NetBSD: isakmp_xauth.h,v 1.4 2006/09/09 16:22:09 manu Exp $	*/
2 
3 /*	$KAME$ */
4 
5 /*
6  * Copyright (C) 2004 Emmanuel Dreyfus
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 _ISAKMP_XAUTH_H
35 #define _ISAKMP_XAUTH_H
36 
37 /* ISAKMP mode config attribute types specific to the Xauth vendor ID */
38 #define	XAUTH_TYPE                16520
39 #define	XAUTH_USER_NAME           16521
40 #define	XAUTH_USER_PASSWORD       16522
41 #define	XAUTH_PASSCODE            16523
42 #define	XAUTH_MESSAGE             16524
43 #define	XAUTH_CHALLENGE           16525
44 #define	XAUTH_DOMAIN              16526
45 #define	XAUTH_STATUS              16527
46 #define	XAUTH_NEXT_PIN            16528
47 #define	XAUTH_ANSWER              16529
48 
49 /* Types for XAUTH_TYPE */
50 #define	XAUTH_TYPE_GENERIC 	0
51 #define	XAUTH_TYPE_CHAP    	1
52 #define	XAUTH_TYPE_OTP     	2
53 #define	XAUTH_TYPE_SKEY    	3
54 
55 /* Values for XAUTH_STATUS */
56 #define	XAUTH_STATUS_FAIL       0
57 #define	XAUTH_STATUS_OK         1
58 
59 /* For phase 1 Xauth status */
60 struct xauth_state {
61 	int status; /* authentication status, used only on server side */
62 	int vendorid;
63 	int authtype;
64 	union {
65 		struct authgeneric {
66 			char *usr;
67 			char *pwd;
68 		} generic;
69 	} authdata;
70 #ifdef HAVE_LIBLDAP
71 	char *udn; /* ldap user dn */
72 #endif
73 };
74 
75 /* What's been sent */
76 #define XAUTH_SENT_USERNAME 1
77 #define XAUTH_SENT_PASSWORD 2
78 #define XAUTH_SENT_EVERYTHING (XAUTH_SENT_USERNAME | XAUTH_SENT_PASSWORD)
79 
80 /* For rmconf Xauth data */
81 struct xauth_rmconf {
82 	vchar_t *login;	/* xauth login */
83 	vchar_t *pass;	/* xauth password */
84 	int state;      /* what's been sent */
85 };
86 
87 /* status */
88 #define XAUTHST_NOTYET	0
89 #define XAUTHST_REQSENT	1
90 #define XAUTHST_OK	2
91 
92 struct xauth_reply_arg {
93 	isakmp_index index;
94 	int port;
95 	int id;
96 	int res;
97 };
98 
99 struct ph1handle;
100 struct isakmp_data;
101 void xauth_sendreq(struct ph1handle *);
102 int xauth_attr_reply(struct ph1handle *, struct isakmp_data *, int);
103 int xauth_login_system(char *, char *);
104 void xauth_sendstatus(struct ph1handle *, int, int);
105 int xauth_check(struct ph1handle *);
106 int group_check(struct ph1handle *, char **, int);
107 vchar_t *isakmp_xauth_req(struct ph1handle *, struct isakmp_data *);
108 vchar_t *isakmp_xauth_set(struct ph1handle *, struct isakmp_data *);
109 void xauth_rmstate(struct xauth_state *);
110 void xauth_reply_stub(void *);
111 int xauth_reply(struct ph1handle *, int, int, int);
112 int xauth_rmconf_used(struct xauth_rmconf **);
113 void xauth_rmconf_delete(struct xauth_rmconf **);
114 
115 #ifdef HAVE_LIBRADIUS
116 int xauth_login_radius(struct ph1handle *, char *, char *);
117 int xauth_radius_init(void);
118 #endif
119 
120 #ifdef HAVE_LIBPAM
121 int xauth_login_pam(int, struct sockaddr *, char *, char *);
122 #endif
123 
124 #ifdef HAVE_LIBLDAP
125 
126 #define LDAP_DFLT_HOST		"localhost"
127 #define LDAP_DFLT_USER		"cn"
128 #define LDAP_DFLT_ADDR		"racoon-address"
129 #define LDAP_DFLT_MASK		"racoon-netmask"
130 #define LDAP_DFLT_GROUP		"cn"
131 #define LDAP_DFLT_MEMBER	"member"
132 
133 struct xauth_ldap_config {
134 	int		pver;
135 	vchar_t 	*host;
136 	int		port;
137 	vchar_t		*base;
138 	int		subtree;
139 	vchar_t		*bind_dn;
140 	vchar_t		*bind_pw;
141 	int		auth_type;
142 	vchar_t		*attr_user;
143 	vchar_t		*attr_addr;
144 	vchar_t		*attr_mask;
145 	vchar_t		*attr_group;
146 	vchar_t		*attr_member;
147 };
148 
149 extern struct xauth_ldap_config xauth_ldap_config;
150 
151 int xauth_ldap_init(void);
152 int xauth_login_ldap(struct ph1handle *, char *, char *);
153 #endif
154 
155 #endif /* _ISAKMP_XAUTH_H */
156