xref: /freebsd/lib/libradius/radlib_private.h (revision 7f3dea244c40159a41ab22da77a434d7c5b5e85a)
1 /*-
2  * Copyright 1998 Juniper Networks, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  *	$FreeBSD$
27  */
28 
29 #ifndef RADLIB_PRIVATE_H
30 #define RADLIB_PRIVATE_H
31 
32 #include <sys/types.h>
33 #include <netinet/in.h>
34 
35 #include "radlib.h"
36 
37 /* Defaults */
38 #define MAXTRIES		3
39 #define PATH_RADIUS_CONF	"/etc/radius.conf"
40 #define RADIUS_PORT		1812
41 #define TIMEOUT			3	/* In seconds */
42 
43 /* Limits */
44 #define ERRSIZE		128		/* Maximum error message length */
45 #define MAXCONFLINE	1024		/* Maximum config file line length */
46 #define MAXSERVERS	10		/* Maximum number of servers to try */
47 #define MSGSIZE		4096		/* Maximum RADIUS message */
48 #define PASSSIZE	128		/* Maximum significant password chars */
49 
50 /* Positions of fields in RADIUS messages */
51 #define POS_CODE	0		/* Message code */
52 #define POS_IDENT	1		/* Identifier */
53 #define POS_LENGTH	2		/* Message length */
54 #define POS_AUTH	4		/* Authenticator */
55 #define LEN_AUTH	16		/* Length of authenticator */
56 #define POS_ATTRS	20		/* Start of attributes */
57 
58 struct rad_server {
59 	struct sockaddr_in addr;	/* Address of server */
60 	char		*secret;	/* Shared secret */
61 	int		 timeout;	/* Timeout in seconds */
62 	int		 max_tries;	/* Number of tries before giving up */
63 	int		 num_tries;	/* Number of tries so far */
64 };
65 
66 struct rad_handle {
67 	int		 fd;		/* Socket file descriptor */
68 	struct rad_server servers[MAXSERVERS];	/* Servers to contact */
69 	int		 num_servers;	/* Number of valid server entries */
70 	int		 ident;		/* Current identifier value */
71 	char		 errmsg[ERRSIZE];	/* Most recent error message */
72 	unsigned char	 request[MSGSIZE];	/* Request to send */
73 	int		 req_len;	/* Length of request */
74 	char		 pass[PASSSIZE];	/* Cleartext password */
75 	int		 pass_len;	/* Length of cleartext password */
76 	int		 pass_pos;	/* Position of scrambled password */
77 	char	 	 chap_pass;	/* Have we got a CHAP_PASSWORD ? */
78 	unsigned char	 response[MSGSIZE];	/* Response received */
79 	int		 resp_len;	/* Length of response */
80 	int		 resp_pos;	/* Current position scanning attrs */
81 	int		 total_tries;	/* How many requests we'll send */
82 	int		 try;		/* How many requests we've sent */
83 	int		 srv;		/* Server number we did last */
84 };
85 
86 #endif
87