/*
* RADIUS authentication server
* Copyright (c) 2005-2009, 2011, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef RADIUS_SERVER_H
#define RADIUS_SERVER_H
struct radius_server_data;
struct eap_user;
/**
* struct radius_server_conf - RADIUS server configuration
*/
struct radius_server_conf {
/**
* auth_port - UDP port to listen to as an authentication server
*/
int auth_port;
/**
* acct_port - UDP port to listen to as an accounting server
*/
int acct_port;
/**
* client_file - RADIUS client configuration file
*
* This file contains the RADIUS clients and the shared secret to be
* used with them in a format where each client is on its own line. The
* first item on the line is the IPv4 or IPv6 address of the client
* with an optional address mask to allow full network to be specified
* (e.g., 192.168.1.2 or 192.168.1.0/24). This is followed by white
* space (space or tabulator) and the shared secret. Lines starting
* with '#' are skipped and can be used as comments.
*/
char *client_file;
/**
* sqlite_file - SQLite database for storing debug log information
*/
const char *sqlite_file;
/**
* conf_ctx - Context pointer for callbacks
*
* This is used as the ctx argument in get_eap_user() calls.
*/
void *conf_ctx;
/**
* eap_sim_db_priv - EAP-SIM/AKA database context
*
* This is passed to the EAP-SIM/AKA server implementation as a
* callback context.
*/
void *eap_sim_db_priv;
/**
* ssl_ctx - TLS context
*
* This is passed to the EAP server implementation as a callback
* context for TLS operations.
*/
void *ssl_ctx;
/**
* pac_opaque_encr_key - PAC-Opaque encryption key for EAP-FAST
*
* This parameter is used to set a key for EAP-FAST to encrypt the
* PAC-Opaque data. It can be set to %NULL if EAP-FAST is not used. If
* set, must point to a 16-octet key.
*/
u8 *pac_opaque_encr_key;
/**
* eap_fast_a_id - EAP-FAST authority identity (A-ID)
*
* If EAP-FAST is not used, this can be set to %NULL. In theory, this
* is a variable length field, but due to some existing implementations
* requiring A-ID to be 16 octets in length, it is recommended to use
* that length for the field to provide interoperability with deployed
* peer implementations.
*/
u8 *eap_fast_a_id;
/**
* eap_fast_a_id_len - Length of eap_fast_a_id buffer in octets
*/
size_t eap_fast_a_id_len;
/**
* eap_fast_a_id_info - EAP-FAST authority identifier information
*
* This A-ID-Info contains a user-friendly name for the A-ID. For
* example, this could be the enterprise and server names in
* human-readable format. This field is encoded as UTF-8. If EAP-FAST
* is not used, this can be set to %NULL.
*/
char *eap_fast_a_id_info;
/**
* eap_fast_prov - EAP-FAST provisioning modes
*
* 0 = provisioning disabled, 1 = only anonymous provisioning allowed,
* 2 = only authenticated provisioning allowed, 3 = both provisioning
* modes allowed.
*/
int eap_fast_prov;
/**
* pac_key_lifetime - EAP-FAST PAC-Key lifetime in seconds
*
* This is the hard limit on how long a provisioned PAC-Key can be
* used.
*/
int pac_key_lifetime;
/**
* pac_key_refresh_time - EAP-FAST PAC-Key refresh time in seconds
*
* This is a soft limit on the PAC-Key. The server will automatically
* generate a new PAC-Key when this number of seconds (or fewer) of the
* lifetime remains.
*/
int pac_key_refresh_time;
/**
* eap_sim_aka_result_ind - EAP-SIM/AKA protected success indication
*
* This controls whether the protected success/failure indication
* (AT_RESULT_IND) is used with EAP-SIM and EAP-AKA.
*/
int eap_sim_aka_result_ind;
/**
* tnc - Trusted Network Connect (TNC)
*
* This controls whether TNC is enabled and will be required before the
* peer is allowed to connect. Note: This is only used with EAP-TTLS
* and EAP-FAST. If any other EAP method is enabled, the peer will be
* allowed to connect without TNC.
*/
int tnc;
/**
* pwd_group - EAP-pwd D-H group
*
* This is used to select which D-H group to use with EAP-pwd.
*/
u16 pwd_group;
/**
* server_id - Server identity
*/
const char *server_id;
/**
* erp - Whether EAP Re-authentication Protocol (ERP) is enabled
*
* This controls whether the authentication server derives ERP key
* hierarchy (rRK and rIK) from full EAP authentication and allows
* these keys to be used to perform ERP to derive rMSK instead of full
* EAP authentication to derive MSK.
*/
int erp;
const char *erp_domain;
unsigned int tls_session_lifetime;
unsigned int tls_flags;
/**
* wps - Wi-Fi Protected Setup context
*
* If WPS is used with an external RADIUS server (which is quite
* unlikely configuration), this is used to provide a pointer to WPS
* context data. Normally, this can be set to %NULL.
*/
struct wps_context *wps;
/**
* ipv6 - Whether to enable IPv6 support in the RADIUS server
*/
int ipv6;
/**
* get_eap_user - Callback for fetching EAP user information
* @ctx: Context data from conf_ctx
* @identity: User identity
* @identity_len: identity buffer length in octets
* @phase2: Whether this is for Phase 2 identity
* @user: Data structure for filling in the user information
* Returns: 0 on success, -1 on failure
*
* This is used to fetch information from user database. The callback
* will fill in information about allowed EAP methods and the user
* password. The password field will be an allocated copy of the
* password data and RADIUS server will free it after use.
*/
int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
int phase2, struct eap_user *user);
/**
* eap_req_id_text - Optional data for EAP-Request/Identity
*
* This can be used to configure an optional, displayable message that
* will be sent in EAP-Request/Identity. This string can contain an
* ASCII-0 character (nul) to separate network infromation per RFC
* 4284. The actual string length is explicit provided in
* eap_req_id_text_len since nul character will not be used as a string
* terminator.
*/
const char *eap_req_id_text;
/**
* eap_req_id_text_len - Length of eap_req_id_text buffer in octets
*/
size_t eap_req_id_text_len;
/*
* msg_ctx - Context data for wpa_msg() calls
*/
void *msg_ctx;
#ifdef CONFIG_RADIUS_TEST
const char *dump_msk_file;
#endif /* CONFIG_RADIUS_TEST */
char *subscr_remediation_url;
u8 subscr_remediation_method;
char *hs20_sim_provisioning_url;
char *t_c_server_url;
};
struct radius_server_data *
radius_server_init(struct radius_server_conf *conf);
void radius_server_erp_flush(struct radius_server_data *data);
void radius_server_deinit(struct radius_server_data *data);
int radius_server_get_mib(struct radius_server_data *data, char *buf,
size_t buflen);
void radius_server_eap_pending_cb(struct radius_server_data *data, void *ctx);
int radius_server_dac_request(struct radius_server_data *data, const char *req);
#endif /* RADIUS_SERVER_H */