/*
 *
 *	RADIUS
 *	Remote Authentication Dial In User Service
 *
 *
 *	Livingston Enterprises, Inc.
 *	6920 Koll Center Parkway
 *	Pleasanton, CA   94566
 *
 *	Copyright 1992 Livingston Enterprises, Inc.
 *
 *	Permission to use, copy, modify, and distribute this software for any
 *	purpose and without fee is hereby granted, provided that this
 *	copyright and permission notice appear on all copies and supporting
 *	documentation, the name of Livingston Enterprises, Inc. not be used
 *	in advertising or publicity pertaining to distribution of the
 *	program without specific prior permission, and notice be given
 *	in supporting documentation that copying and distribution is by
 *	permission of Livingston Enterprises, Inc.   
 *
 *	Livingston Enterprises, Inc. makes no representations about
 *	the suitability of this software for any purpose.  It is
 *	provided "as is" without express or implied warranty.
 *
 */

/*
 *	@(#)radius.h	1.9 11/14/94 
 */

#include "conf.h"

#define AUTH_VECTOR_LEN		16
#define AUTH_PASS_LEN		16
#define AUTH_STRING_LEN		128	/* maximum of 254 */


typedef struct pw_auth_hdr {
	u_char		code;
	u_char		id;
	u_short		length;
	u_char		vector[AUTH_VECTOR_LEN];
	u_char		data[2];
} AUTH_HDR;

#define AUTH_HDR_LEN			20
#define CHAP_VALUE_LENGTH		16

#define PW_AUTH_UDP_PORT		1645
#define PW_ACCT_UDP_PORT		1646

#define PW_TYPE_STRING			0
#define PW_TYPE_INTEGER			1
#define PW_TYPE_IPADDR			2
#define PW_TYPE_DATE			3


#define	PW_AUTHENTICATION_REQUEST	1
#define	PW_AUTHENTICATION_ACK		2
#define	PW_AUTHENTICATION_REJECT	3
#define	PW_ACCOUNTING_REQUEST		4
#define	PW_ACCOUNTING_RESPONSE		5
#define	PW_ACCOUNTING_STATUS		6
#define PW_PASSWORD_REQUEST		7
#define PW_PASSWORD_ACK			8
#define PW_PASSWORD_REJECT		9
#define	PW_ACCOUNTING_MESSAGE		10
#define PW_ACCESS_CHALLENGE		11

#define	PW_USER_NAME			1
#define	PW_PASSWORD			2
#define	PW_CHAP_PASSWORD		3
#define	PW_CLIENT_ID			4
#define	PW_CLIENT_PORT_ID		5
#define	PW_USER_SERVICE_TYPE		6
#define	PW_FRAMED_PROTOCOL		7
#define	PW_FRAMED_ADDRESS		8
#define	PW_FRAMED_NETMASK		9
#define	PW_FRAMED_ROUTING		10
#define	PW_FRAMED_FILTER_ID		11
#define	PW_FRAMED_MTU			12
#define	PW_FRAMED_COMPRESSION		13
#define	PW_LOGIN_HOST			14
#define	PW_LOGIN_SERVICE		15
#define	PW_LOGIN_TCP_PORT		16
#define PW_OLD_PASSWORD			17
#define PW_PORT_MESSAGE			18
#define PW_DIALBACK_NO			19
#define PW_DIALBACK_NAME		20
#define PW_EXPIRATION			21
#define PW_FRAMED_ROUTE			22
#define PW_FRAMED_IPXNET		23
#define PW_STATE			24

#define PW_ACCT_STATUS_TYPE		40
#define PW_ACCT_DELAY_TIME		41
#define PW_ACCT_INPUT_OCTETS		42
#define PW_ACCT_OUTPUT_OCTETS		43
#define PW_ACCT_SESSION_ID		44
#define PW_ACCT_AUTHENTIC		45
#define PW_ACCT_SESSION_TIME		46

/*
 *	INTEGER TRANSLATIONS
 */

/*	USER TYPES	*/

#define	PW_LOGIN_USER			1
#define	PW_FRAMED_USER			2
#define	PW_DIALBACK_LOGIN_USER		3
#define	PW_DIALBACK_FRAMED_USER		4

/*	FRAMED PROTOCOLS	*/

#define	PW_PPP				1
#define	PW_SLIP				2

/*	FRAMED ROUTING VALUES	*/

#define	PW_NONE				0
#define	PW_BROADCAST			1
#define	PW_LISTEN			2
#define	PW_BROADCAST_LISTEN		3

/*	FRAMED COMPRESSION TYPES	*/

#define	PW_VAN_JACOBSEN_TCP_IP		1

/*	LOGIN SERVICES	*/

#define	PW_TELNET			0
#define	PW_RLOGIN			1
#define	PW_TCP_CLEAR			2
#define	PW_PORTMASTER			3

/*	AUTHENTICATION LEVEL	*/

#define PW_AUTH_NONE			0
#define PW_AUTH_RADIUS			1
#define PW_AUTH_LOCAL			2

/*	STATUS TYPES	*/

#define PW_STATUS_START			1
#define PW_STATUS_STOP			2
#define PW_STATUS_ALIVE			3

/* Default Database File Names */

#define RADIUS_DIR		"./"
#define RADACCT_DIR		"./"

#define RADIUS_DICTIONARY	"dictionary"
#define RADIUS_CLIENTS		"clients"
#define RADIUS_USERS		"users"
#define RADIUS_HOLD		"holdusers"
#define RADIUS_LOG		"logfile"

/* Server data structures */

typedef struct dict_attr {
	char			name[32];
	int			value;
	int			type;
	struct dict_attr	*next;
} DICT_ATTR;

typedef struct dict_value {
	char			attrname[32];
	char			name[32];
	int			value;
	struct dict_value	*next;
} DICT_VALUE;

typedef struct value_pair {
	char			name[32];
	int			attribute;
	int			type;
	UINT4			lvalue;
	char			strvalue[AUTH_STRING_LEN];
	struct value_pair	*next;
} VALUE_PAIR;

typedef struct auth_req {
	UINT4			ipaddr;
	u_short			udp_port;
	u_char			id;
	u_char			code;
	u_char			vector[16];
	u_char			secret[16];
	VALUE_PAIR		*request;
	int			child_pid;	/* Process ID of child */
	UINT4			timestamp;
	struct auth_req		*next;		/* Next active request */
} AUTH_REQ;

#define DEBUG	if(debug_flag)printf

#define SECONDS_PER_DAY		86400
#define MAX_REQUEST_TIME	30
#define CLEANUP_DELAY		5
#define MAX_REQUESTS		100