radlib_private.h revision 228730 
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: head/lib/libradius/radlib_private.h 228730 2011-12-20 11:13:44Z melifaro $
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#include "radlib_vs.h"
37
38/* Handle types */
39#define RADIUS_AUTH		0   /* RADIUS authentication, default */
40#define RADIUS_ACCT		1   /* RADIUS accounting */
41#define RADIUS_SERVER		2   /* RADIUS server */
42
43/* Defaults */
44#define MAXTRIES		3
45#define PATH_RADIUS_CONF	"/etc/radius.conf"
46#define RADIUS_PORT		1812
47#define RADACCT_PORT		1813
48#define TIMEOUT			3	/* In seconds */
49
50/* Limits */
51#define ERRSIZE		128		/* Maximum error message length */
52#define MAXCONFLINE	1024		/* Maximum config file line length */
53#define MAXSERVERS	10		/* Maximum number of servers to try */
54#define MSGSIZE		4096		/* Maximum RADIUS message */
55#define PASSSIZE	128		/* Maximum significant password chars */
56
57/* Positions of fields in RADIUS messages */
58#define POS_CODE	0		/* Message code */
59#define POS_IDENT	1		/* Identifier */
60#define POS_LENGTH	2		/* Message length */
61#define POS_AUTH	4		/* Authenticator */
62#define LEN_AUTH	16		/* Length of authenticator */
63#define POS_ATTRS	20		/* Start of attributes */
64
65struct rad_server {
66	struct sockaddr_in addr;	/* Address of server */
67	char		*secret;	/* Shared secret */
68	int		 timeout;	/* Timeout in seconds */
69	int		 max_tries;	/* Number of tries before giving up */
70	int		 num_tries;	/* Number of tries so far */
71};
72
73struct rad_handle {
74	int		 fd;		/* Socket file descriptor */
75	struct rad_server servers[MAXSERVERS];	/* Servers to contact */
76	int		 num_servers;	/* Number of valid server entries */
77	int		 ident;		/* Current identifier value */
78	char		 errmsg[ERRSIZE];	/* Most recent error message */
79	unsigned char	 out[MSGSIZE];	/* Request to send */
80	char		 out_created;	/* rad_create_request() called? */
81	int		 out_len;	/* Length of request */
82	char		 pass[PASSSIZE];	/* Cleartext password */
83	int		 pass_len;	/* Length of cleartext password */
84	int		 pass_pos;	/* Position of scrambled password */
85	char		 chap_pass;	/* Have we got a CHAP_PASSWORD ? */
86	int		 authentic_pos;	/* Position of message authenticator */
87	char		 eap_msg;	/* Are we an EAP Proxy? */
88	unsigned char	 in[MSGSIZE];	/* Response received */
89	int		 in_len;	/* Length of response */
90	int		 in_pos;	/* Current position scanning attrs */
91	int		 total_tries;	/* How many requests we'll send */
92	int		 try;		/* How many requests we've sent */
93	int		 srv;		/* Server number we did last */
94	int		 type;		/* Handle type */
95	in_addr_t	 bindto;	/* Bind to address */
96};
97
98struct vendor_attribute {
99	u_int32_t vendor_value;
100	u_char attrib_type;
101	u_char attrib_len;
102	u_char attrib_data[1];
103};
104
105#endif
106