/*
* $Id: radiusclient.h,v 1.1 2004/11/14 07:26:26 paulus Exp $
*
* Copyright (C) 1995,1996,1997,1998 Lars Fenneberg
*
* Copyright 1992 Livingston Enterprises, Inc.
*
* Copyright 1992,1993, 1994,1995 The Regents of the University of Michigan
* and Merit Network, Inc. All Rights Reserved
*
* See the file COPYRIGHT for the respective terms and conditions.
* If the file is missing contact me at lf@elemental.net
* and I'll send you a copy.
*
*/
#ifndef RADIUSCLIENT_H
#define RADIUSCLIENT_H
#include <sys/types.h>
#include <stdio.h>
#include <time.h>
#include "pppd.h"
#ifndef _UINT4_T
/* This works for all machines that Linux runs on... */
typedef unsigned int UINT4;
typedef int INT4;
#endif
#define AUTH_VECTOR_LEN 16
#define AUTH_PASS_LEN (3 * 16) /* multiple of 16 */
#define AUTH_ID_LEN 64
#define AUTH_STRING_LEN 128 /* maximum of 253 */
#define BUFFER_LEN 8192
#define NAME_LENGTH 32
#define GETSTR_LENGTH 128 /* must be bigger than AUTH_PASS_LEN */
/* codes for radius_buildreq, radius_getport, etc. */
#define AUTH 0
#define ACCT 1
/* defines for config.c */
#define SERVER_MAX 8
#define AUTH_LOCAL_FST (1<<0)
#define AUTH_RADIUS_FST (1<<1)
#define AUTH_LOCAL_SND (1<<2)
#define AUTH_RADIUS_SND (1<<3)
typedef struct server {
int max;
char *name[SERVER_MAX];
unsigned short port[SERVER_MAX];
} SERVER;
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 MAX_SECRET_LENGTH (3 * 16) /* MUST be multiple of 16 */
#define CHAP_VALUE_LENGTH 16
#define PW_AUTH_UDP_PORT 1812
#define PW_ACCT_UDP_PORT 1813
#define PW_TYPE_STRING 0
#define PW_TYPE_INTEGER 1
#define PW_TYPE_IPADDR 2
#define PW_TYPE_DATE 3
/* standard RADIUS codes */
#define PW_ACCESS_REQUEST 1
#define PW_ACCESS_ACCEPT 2
#define PW_ACCESS_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_STATUS_SERVER 12
#define PW_STATUS_CLIENT 13
/* standard RADIUS attribute-value pairs */
#define PW_USER_NAME 1 /* string */
#define PW_USER_PASSWORD 2 /* string */
#define PW_CHAP_PASSWORD 3 /* string */
#define PW_NAS_IP_ADDRESS 4 /* ipaddr */
#define PW_NAS_PORT 5 /* integer */
#define PW_SERVICE_TYPE 6 /* integer */
#define PW_FRAMED_PROTOCOL 7 /* integer */
#define PW_FRAMED_IP_ADDRESS 8 /* ipaddr */
#define PW_FRAMED_IP_NETMASK 9 /* ipaddr */
#define PW_FRAMED_ROUTING 10 /* integer */
#define PW_FILTER_ID 11 /* string */
#define PW_FRAMED_MTU 12 /* integer */
#define PW_FRAMED_COMPRESSION 13 /* integer */
#define PW_LOGIN_IP_HOST 14 /* ipaddr */
#define PW_LOGIN_SERVICE 15 /* integer */
#define PW_LOGIN_PORT 16 /* integer */
#define PW_OLD_PASSWORD 17 /* string */ /* deprecated */
#define PW_REPLY_MESSAGE 18 /* string */
#define PW_LOGIN_CALLBACK_NUMBER 19 /* string */
#define PW_FRAMED_CALLBACK_ID 20 /* string */
#define PW_EXPIRATION 21 /* date */ /* deprecated */
#define PW_FRAMED_ROUTE 22 /* string */
#define PW_FRAMED_IPX_NETWORK 23 /* integer */
#define PW_STATE 24 /* string */
#define PW_CLASS 25 /* string */
#define PW_VENDOR_SPECIFIC 26 /* string */
#define PW_SESSION_TIMEOUT 27 /* integer */
#define PW_IDLE_TIMEOUT 28 /* integer */
#define PW_TERMINATION_ACTION 29 /* integer */
#define PW_CALLED_STATION_ID 30 /* string */
#define PW_CALLING_STATION_ID 31 /* string */
#define PW_NAS_IDENTIFIER 32 /* string */
#define PW_PROXY_STATE 33 /* string */
#define PW_LOGIN_LAT_SERVICE 34 /* string */
#define PW_LOGIN_LAT_NODE 35 /* string */
#define PW_LOGIN_LAT_GROUP 36 /* string */
#define PW_FRAMED_APPLETALK_LINK 37 /* integer */
#define PW_FRAMED_APPLETALK_NETWORK 38 /* integer */
#define PW_FRAMED_APPLETALK_ZONE 39 /* string */
#define PW_CHAP_CHALLENGE 60 /* string */
#define PW_NAS_PORT_TYPE 61 /* integer */
#define PW_PORT_LIMIT 62 /* integer */
#define PW_LOGIN_LAT_PORT 63 /* string */
/* Vendor RADIUS attribute-value pairs */
#define PW_MS_CHAP_CHALLENGE 11 /* string */
#define PW_MS_CHAP_RESPONSE 1 /* string */
#define PW_MS_CHAP2_RESPONSE 25 /* string */
#define PW_MS_CHAP2_SUCCESS 26 /* string */
#define PW_MS_MPPE_ENCRYPTION_POLICY 7 /* string */
#define PW_MS_MPPE_ENCRYPTION_TYPE 8 /* string */
#define PW_MS_MPPE_ENCRYPTION_TYPES PW_MS_MPPE_ENCRYPTION_TYPE
#define PW_MS_CHAP_MPPE_KEYS 12 /* string */
#define PW_MS_MPPE_SEND_KEY 16 /* string */
#define PW_MS_MPPE_RECV_KEY 17 /* string */
#define PW_MS_PRIMARY_DNS_SERVER 28 /* ipaddr */
#define PW_MS_SECONDARY_DNS_SERVER 29 /* ipaddr */
#define PW_MS_PRIMARY_NBNS_SERVER 30 /* ipaddr */
#define PW_MS_SECONDARY_NBNS_SERVER 31 /* ipaddr */
/* Accounting */
#define PW_ACCT_STATUS_TYPE 40 /* integer */
#define PW_ACCT_DELAY_TIME 41 /* integer */
#define PW_ACCT_INPUT_OCTETS 42 /* integer */
#define PW_ACCT_OUTPUT_OCTETS 43 /* integer */
#define PW_ACCT_SESSION_ID 44 /* string */
#define PW_ACCT_AUTHENTIC 45 /* integer */
#define PW_ACCT_SESSION_TIME 46 /* integer */
#define PW_ACCT_INPUT_PACKETS 47 /* integer */
#define PW_ACCT_OUTPUT_PACKETS 48 /* integer */
#define PW_ACCT_TERMINATE_CAUSE 49 /* integer */
#define PW_ACCT_MULTI_SESSION_ID 50 /* string */
#define PW_ACCT_LINK_COUNT 51 /* integer */
/* From RFC 2869 */
#define PW_ACCT_INTERIM_INTERVAL 85 /* integer */
/* Merit Experimental Extensions */
#define PW_USER_ID 222 /* string */
#define PW_USER_REALM 223 /* string */
/* Session limits */
#define PW_SESSION_OCTETS_LIMIT 227 /* integer */
#define PW_OCTETS_DIRECTION 228 /* integer */
/* Integer Translations */
/* SERVICE TYPES */
#define PW_LOGIN 1
#define PW_FRAMED 2
#define PW_CALLBACK_LOGIN 3
#define PW_CALLBACK_FRAMED 4
#define PW_OUTBOUND 5
#define PW_ADMINISTRATIVE 6
#define PW_NAS_PROMPT 7
#define PW_AUTHENTICATE_ONLY 8
#define PW_CALLBACK_NAS_PROMPT 9
/* FRAMED PROTOCOLS */
#define PW_PPP 1
#define PW_SLIP 2
#define PW_ARA 3
#define PW_GANDALF 4
#define PW_XYLOGICS 5
/* 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_JACOBSON_TCP_IP 1
#define PW_IPX_HEADER_COMPRESSION 2
/* LOGIN SERVICES */
#define PW_TELNET 0
#define PW_RLOGIN 1
#define PW_TCP_CLEAR 2
#define PW_PORTMASTER 3
#define PW_LAT 4
#define PW_X25_PAD 5
#define PW_X25_T3POS 6
/* TERMINATION ACTIONS */
#define PW_DEFAULT 0
#define PW_RADIUS_REQUEST 1
/* PROHIBIT PROTOCOL */
#define PW_DUMB 0 /* 1 and 2 are defined in FRAMED PROTOCOLS */
#define PW_AUTH_ONLY 3
#define PW_ALL 255
/* ACCOUNTING STATUS TYPES */
#define PW_STATUS_START 1
#define PW_STATUS_STOP 2
#define PW_STATUS_ALIVE 3
#define PW_STATUS_MODEM_START 4
#define PW_STATUS_MODEM_STOP 5
#define PW_STATUS_CANCEL 6
#define PW_ACCOUNTING_ON 7
#define PW_ACCOUNTING_OFF 8
/* ACCOUNTING TERMINATION CAUSES */
#define PW_USER_REQUEST 1
#define PW_LOST_CARRIER 2
#define PW_LOST_SERVICE 3
#define PW_ACCT_IDLE_TIMEOUT 4
#define PW_ACCT_SESSION_TIMEOUT 5
#define PW_ADMIN_RESET 6
#define PW_ADMIN_REBOOT 7
#define PW_PORT_ERROR 8
#define PW_NAS_ERROR 9
#define PW_NAS_REQUEST 10
#define PW_NAS_REBOOT 11
#define PW_PORT_UNNEEDED 12
#define PW_PORT_PREEMPTED 13
#define PW_PORT_SUSPENDED 14
#define PW_SERVICE_UNAVAILABLE 15
#define PW_CALLBACK 16
#define PW_USER_ERROR 17
#define PW_HOST_REQUEST 18
/* NAS PORT TYPES */
#define PW_ASYNC 0
#define PW_SYNC 1
#define PW_ISDN_SYNC 2
#define PW_ISDN_SYNC_V120 3
#define PW_ISDN_SYNC_V110 4
#define PW_VIRTUAL 5
/* AUTHENTIC TYPES */
#define PW_RADIUS 1
#define PW_LOCAL 2
#define PW_REMOTE 3
/* Session-Octets-Limit */
#define PW_OCTETS_DIRECTION_SUM 0
#define PW_OCTETS_DIRECTION_IN 1
#define PW_OCTETS_DIRECTION_OUT 2
#define PW_OCTETS_DIRECTION_MAX 3
/* Vendor codes */
#define VENDOR_NONE (-1)
#define VENDOR_MICROSOFT 311
/* Server data structures */
typedef struct dict_attr
{
char name[NAME_LENGTH + 1]; /* attribute name */
int value; /* attribute index */
int type; /* string, int, etc. */
int vendorcode; /* vendor code */
struct dict_attr *next;
} DICT_ATTR;
typedef struct dict_value
{
char attrname[NAME_LENGTH +1];
char name[NAME_LENGTH + 1];
int value;
struct dict_value *next;
} DICT_VALUE;
typedef struct vendor_dict
{
char vendorname[NAME_LENGTH + 1];
int vendorcode;
DICT_ATTR *attributes;
struct vendor_dict *next;
} VENDOR_DICT;
typedef struct value_pair
{
char name[NAME_LENGTH + 1];
int attribute;
int vendorcode;
int type;
UINT4 lvalue;
u_char strvalue[AUTH_STRING_LEN + 1];
struct value_pair *next;
} VALUE_PAIR;
/* don't change this, as it has to be the same as in the Merit radiusd code */
#define MGMT_POLL_SECRET "Hardlyasecret"
/* Define return codes from "SendServer" utility */
#define BADRESP_RC -2
#define ERROR_RC -1
#define OK_RC 0
#define TIMEOUT_RC 1
typedef struct send_data /* Used to pass information to sendserver() function */
{
u_char code; /* RADIUS packet code */
u_char seq_nbr; /* Packet sequence number */
char *server; /* Name/addrress of RADIUS server */
int svc_port; /* RADIUS protocol destination port */
int timeout; /* Session timeout in seconds */
int retries;
VALUE_PAIR *send_pairs; /* More a/v pairs to send */
VALUE_PAIR *receive_pairs; /* Where to place received a/v pairs */
} SEND_DATA;
typedef struct request_info
{
char secret[MAX_SECRET_LENGTH + 1];
u_char request_vector[AUTH_VECTOR_LEN];
} REQUEST_INFO;
#ifndef MIN
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#endif
#ifndef PATH_MAX
#define PATH_MAX 1024
#endif
typedef struct env
{
int maxsize, size;
char **env;
} ENV;
#define ENV_SIZE 128
/* Function prototypes */
/* avpair.c */
VALUE_PAIR *rc_avpair_add __P((VALUE_PAIR **, int, void *, int, int));
int rc_avpair_assign __P((VALUE_PAIR *, void *, int));
VALUE_PAIR *rc_avpair_new __P((int, void *, int, int));
VALUE_PAIR *rc_avpair_gen __P((AUTH_HDR *));
VALUE_PAIR *rc_avpair_get __P((VALUE_PAIR *, UINT4));
VALUE_PAIR *rc_avpair_copy __P((VALUE_PAIR *));
void rc_avpair_insert __P((VALUE_PAIR **, VALUE_PAIR *, VALUE_PAIR *));
void rc_avpair_free __P((VALUE_PAIR *));
int rc_avpair_parse __P((char *, VALUE_PAIR **));
int rc_avpair_tostr __P((VALUE_PAIR *, char *, int, char *, int));
VALUE_PAIR *rc_avpair_readin __P((FILE *));
/* buildreq.c */
void rc_buildreq __P((SEND_DATA *, int, char *, unsigned short, int, int));
unsigned char rc_get_seqnbr __P((void));
int rc_auth __P((UINT4, VALUE_PAIR *, VALUE_PAIR **, char *, REQUEST_INFO *));
int rc_auth_using_server __P((SERVER *, UINT4, VALUE_PAIR *, VALUE_PAIR **,
char *, REQUEST_INFO *));
int rc_auth_proxy __P((VALUE_PAIR *, VALUE_PAIR **, char *));
int rc_acct __P((UINT4, VALUE_PAIR *));
int rc_acct_using_server __P((SERVER *, UINT4, VALUE_PAIR *));
int rc_acct_proxy __P((VALUE_PAIR *));
int rc_check __P((char *, unsigned short, char *));
/* clientid.c */
int rc_read_mapfile __P((char *));
UINT4 rc_map2id __P((char *));
/* config.c */
int rc_read_config __P((char *));
char *rc_conf_str __P((char *));
int rc_conf_int __P((char *));
SERVER *rc_conf_srv __P((char *));
int rc_find_server __P((char *, UINT4 *, char *));
/* dict.c */
int rc_read_dictionary __P((char *));
DICT_ATTR *rc_dict_getattr __P((int, int));
DICT_ATTR *rc_dict_findattr __P((char *));
DICT_VALUE *rc_dict_findval __P((char *));
DICT_VALUE * rc_dict_getval __P((UINT4, char *));
VENDOR_DICT * rc_dict_findvendor __P((char *));
VENDOR_DICT * rc_dict_getvendor __P((int));
/* ip_util.c */
UINT4 rc_get_ipaddr __P((char *));
int rc_good_ipaddr __P((char *));
const char *rc_ip_hostname __P((UINT4));
UINT4 rc_own_ipaddress __P((void));
/* sendserver.c */
int rc_send_server __P((SEND_DATA *, char *, REQUEST_INFO *));
/* util.c */
void rc_str2tm __P((char *, struct tm *));
char *rc_mksid __P((void));
void rc_mdelay __P((int));
/* md5.c */
void rc_md5_calc __P((unsigned char *, unsigned char *, unsigned int));
#endif /* RADIUSCLIENT_H */