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      1 /* $NetBSD: radlib_private.h,v 1.4 2009/01/19 07:21:59 lukem Exp $ */
      2 
      3 /*-
      4  * Copyright 1998 Juniper Networks, 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  *	$FreeBSD: /repoman/r/ncvs/src/lib/libradius/radlib_private.h,v 1.6 2004/04/27 15:00:29 ru Exp $
     29  */
     30 
     31 #ifndef RADLIB_PRIVATE_H
     32 #define RADLIB_PRIVATE_H
     33 
     34 #include <sys/types.h>
     35 #include <netinet/in.h>
     36 
     37 #include "radlib.h"
     38 #include "radlib_vs.h"
     39 
     40 /* Handle types */
     41 #define RADIUS_AUTH		0   /* RADIUS authentication, default */
     42 #define RADIUS_ACCT		1   /* RADIUS accounting */
     43 
     44 /* Defaults */
     45 #define MAXTRIES		3
     46 #define PATH_RADIUS_CONF	"/etc/radius.conf"
     47 #define RADIUS_PORT		1812
     48 #define RADACCT_PORT		1813
     49 #define TIMEOUT			3	/* In seconds */
     50 
     51 /* Limits */
     52 #define ERRSIZE		128		/* Maximum error message length */
     53 #define MAXCONFLINE	1024		/* Maximum config file line length */
     54 #define MAXSERVERS	10		/* Maximum number of servers to try */
     55 #define MSGSIZE		4096		/* Maximum RADIUS message */
     56 #define PASSSIZE	128		/* Maximum significant password chars */
     57 
     58 /* Positions of fields in RADIUS messages */
     59 #define POS_CODE	0		/* Message code */
     60 #define POS_IDENT	1		/* Identifier */
     61 #define POS_LENGTH	2		/* Message length */
     62 #define POS_AUTH	4		/* Authenticator */
     63 #define LEN_AUTH	16		/* Length of authenticator */
     64 #define POS_ATTRS	20		/* Start of attributes */
     65 
     66 struct rad_server {
     67 	struct sockaddr_in addr;	/* Address of server */
     68 	char		*secret;	/* Shared secret */
     69 	int		 timeout;	/* Timeout in seconds */
     70 	int		 max_tries;	/* Number of tries before giving up */
     71 	int		 num_tries;	/* Number of tries so far */
     72 };
     73 
     74 struct rad_handle {
     75 	int		 fd;		/* Socket file descriptor */
     76 	struct rad_server servers[MAXSERVERS];	/* Servers to contact */
     77 	size_t		 num_servers;	/* Number of valid server entries */
     78 	int		 ident;		/* Current identifier value */
     79 	char		 errmsg[ERRSIZE];	/* Most recent error message */
     80 	unsigned char	 request[MSGSIZE];	/* Request to send */
     81 	char	 	 request_created; /* rad_create_request() called? */
     82 	size_t		 req_len;	/* Length of request */
     83 	char		 pass[PASSSIZE];	/* Cleartext password */
     84 	size_t		 pass_len;	/* Length of cleartext password */
     85 	size_t		 pass_pos;	/* Position of scrambled password */
     86 	char	 	 chap_pass;	/* Have we got a CHAP_PASSWORD ? */
     87 	size_t		 authentic_pos;	/* Position of message authenticator */
     88 	char		 eap_msg;	/* Are we an EAP Proxy? */
     89 	unsigned char	 response[MSGSIZE];	/* Response received */
     90 	size_t		 resp_len;	/* Length of response */
     91 	size_t		 resp_pos;	/* Current position scanning attrs */
     92 	size_t		 total_tries;	/* How many requests we'll send */
     93 	size_t		 try;		/* How many requests we've sent */
     94 	size_t		 srv;		/* Server number we did last */
     95 	int		 type;		/* Handle type */
     96 };
     97 
     98 struct 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