1 /*	$OpenBSD: npppd_auth_local.h,v 1.9 2024/02/26 10:42:05 yasuoka Exp $ */
2 
3 /*-
4  * Copyright (c) 2009 Internet Initiative Japan Inc.
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  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 struct _npppd_auth_base {
30 	/** name of realm */
31 	char	name[NPPPD_GENERIC_NAME_LEN];
32 	/** reference indicated to parent npppd */
33 	npppd 	*npppd;
34 	/** type of authentication realm */
35 	int	type;
36 	/** PPP suffix */
37 	char	pppsuffix[64];
38 	uint32_t
39 		/** whether initialized or not */
40 		initialized:1,
41 		/** in disposing */
42 		disposing:1,
43 		/** Is the radius configuration ready */
44 		radius_ready:1,
45 		/** whether EAP capable or not */
46 		eap_capable:1,
47 		/** whether force to strip Windows-NT domain or not */
48 		strip_nt_domain:1,
49 		/** whether force to strip after the '@' of PPP username or not */
50 		strip_atmark_realm:1,
51 		/** has users list */
52 		has_users_file:1,
53 		reserved:25;
54 
55 	/** path name of account list */
56 	char	users_file_path[64];
57 	/** last load time */
58 	time_t	last_load;
59 	/**counter of sessions from this auth */
60 	int    user_max_session;
61 };
62 
63 #ifdef USE_NPPPD_RADIUS
64 struct _npppd_auth_radius {
65 	/** parent of npppd_auth_base */
66 	npppd_auth_base nar_base;
67 
68 	/** RADIUS authentication server setting */
69 	radius_req_setting *rad_auth_setting;
70 
71 	/** RADIUS accounting server setting */
72 	radius_req_setting *rad_acct_setting;
73 
74 	/** Whether RADIUS accounting-on is noticed */
75 	int rad_acct_on;
76 };
77 #endif
78 
79 /** type of local authentication realm */
80 struct _npppd_auth_local {
81 	/* parent npppd_auth_base */
82 	npppd_auth_base nal_base;
83 };
84 
85 static npppd_auth_user *npppd_auth_get_user (npppd_auth_base *, const char *);
86 static int              npppd_auth_base_log (npppd_auth_base *, int, const char *, ...);
87 
88 #ifdef USE_NPPPD_RADIUS
89 enum RADIUS_SERVER_TYPE {
90 	RADIUS_SERVER_TYPE_AUTH,
91 	RADIUS_SERVER_TYPE_ACCT
92 };
93 
94 static int              npppd_auth_radius_reload (npppd_auth_base *, struct authconf *);
95 #endif
96 
97 #ifdef NPPPD_AUTH_DEBUG
98 #define NPPPD_AUTH_DBG(x) 	npppd_auth_base_log x
99 #define NPPPD_AUTH_ASSERT(x)	ASSERT(x)
100 #else
101 #define NPPPD_AUTH_DBG(x)
102 #define NPPPD_AUTH_ASSERT(x)
103 #endif
104 
105 #define	DEFAULT_RADIUS_AUTH_PORT	1812
106 #define	DEFAULT_RADIUS_ACCT_PORT	1813
107 #define	DEFAULT_RADIUS_TIMEOUT		9
108 #define	DEFAULT_RADIUS_MAX_TRIES	3
109 #define	DEFAULT_RADIUS_MAX_FAILOVERS	1
110 
111