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* hostapd / RADIUS client
* Copyright (c) 2002-2005, Jouni Malinen <>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
* Alternatively, this software may be distributed under the terms of BSD
* license.
* See README and COPYING for more details.
#include "config_types.h"
struct radius_msg;
struct hostapd_radius_server {
/* MIB prefix for shared variables:
* @ = radiusAuth or radiusAcc depending on the type of the server */
struct hostapd_ip_addr addr; /* @ServerAddress */
int port; /* @ClientServerPortNumber */
u8 *shared_secret;
size_t shared_secret_len;
/* Dynamic (not from configuration file) MIB data */
int index; /* @ServerIndex */
int round_trip_time; /* @ClientRoundTripTime; in hundredths of a
* second */
u32 requests; /* @Client{Access,}Requests */
u32 retransmissions; /* @Client{Access,}Retransmissions */
u32 access_accepts; /* radiusAuthClientAccessAccepts */
u32 access_rejects; /* radiusAuthClientAccessRejects */
u32 access_challenges; /* radiusAuthClientAccessChallenges */
u32 responses; /* radiusAccClientResponses */
u32 malformed_responses; /* @ClientMalformed{Access,}Responses */
u32 bad_authenticators; /* @ClientBadAuthenticators */
u32 timeouts; /* @ClientTimeouts */
u32 unknown_types; /* @ClientUnknownTypes */
u32 packets_dropped; /* @ClientPacketsDropped */
/* @ClientPendingRequests: length of hapd->radius->msgs for matching
* msg_type */
struct hostapd_radius_servers {
/* RADIUS Authentication and Accounting servers in priority order */
struct hostapd_radius_server *auth_servers, *auth_server;
int num_auth_servers;
struct hostapd_radius_server *acct_servers, *acct_server;
int num_acct_servers;
int retry_primary_interval;
int acct_interim_interval;
int msg_dumps;
typedef enum {
RADIUS_ACCT_INTERIM /* used only with radius_client_send(); just like
* RADIUS_ACCT, but removes any pending interim
* RADIUS Accounting packages for the same STA
* before sending the new interim update */
} RadiusType;
typedef enum {
} RadiusRxResult;
struct radius_client_data;
int radius_client_register(struct radius_client_data *radius,
RadiusType msg_type,
RadiusRxResult (*handler)
(struct radius_msg *msg, struct radius_msg *req,
u8 *shared_secret, size_t shared_secret_len,
void *data),
void *data);
int radius_client_send(struct radius_client_data *radius,
struct radius_msg *msg,
RadiusType msg_type, const u8 *addr);
u8 radius_client_get_id(struct radius_client_data *radius);
void radius_client_flush(struct radius_client_data *radius, int only_auth);
struct radius_client_data *
radius_client_init(void *ctx, struct hostapd_radius_servers *conf);
void radius_client_deinit(struct radius_client_data *radius);
void radius_client_flush_auth(struct radius_client_data *radius, u8 *addr);
int radius_client_get_mib(struct radius_client_data *radius, char *buf,
size_t buflen);
struct radius_client_data *
radius_client_reconfig(struct radius_client_data *old, void *ctx,
struct hostapd_radius_servers *oldconf,
struct hostapd_radius_servers *newconf);
#endif /* RADIUS_CLIENT_H */