/* * $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 #include #include #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 */