2008-02-27 20:34:43 -05:00
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/*
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* hostapd / IEEE 802.1X-2004 Authenticator
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* Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef IEEE802_1X_H
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#define IEEE802_1X_H
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struct hostapd_data;
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struct sta_info;
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struct eapol_state_machine;
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struct hostapd_config;
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struct hostapd_bss_config;
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/* RFC 3580, 4. RC4 EAPOL-Key Frame */
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struct ieee802_1x_eapol_key {
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u8 type;
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u16 key_length;
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u8 replay_counter[8]; /* does not repeat within the life of the keying
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* material used to encrypt the Key field;
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* 64-bit NTP timestamp MAY be used here */
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u8 key_iv[16]; /* cryptographically random number */
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u8 key_index; /* key flag in the most significant bit:
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* 0 = broadcast (default key),
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* 1 = unicast (key mapping key); key index is in the
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* 7 least significant bits */
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u8 key_signature[16]; /* HMAC-MD5 message integrity check computed with
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* MS-MPPE-Send-Key as the key */
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/* followed by key: if packet body length = 44 + key length, then the
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* key field (of key_length bytes) contains the key in encrypted form;
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* if packet body length = 44, key field is absent and key_length
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* represents the number of least significant octets from
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* MS-MPPE-Send-Key attribute to be used as the keying material;
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* RC4 key used in encryption = Key-IV + MS-MPPE-Recv-Key */
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} __attribute__ ((packed));
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void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
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size_t len);
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void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta);
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void ieee802_1x_free_station(struct sta_info *sta);
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void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta);
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void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta);
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void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
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struct sta_info *sta, int authorized);
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void ieee802_1x_dump_state(FILE *f, const char *prefix, struct sta_info *sta);
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int ieee802_1x_init(struct hostapd_data *hapd);
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void ieee802_1x_deinit(struct hostapd_data *hapd);
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int ieee802_1x_reconfig(struct hostapd_data *hapd,
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struct hostapd_config *oldconf,
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struct hostapd_bss_config *oldbss);
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int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
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u8 *buf, size_t len, int ack);
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u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len);
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u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
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int idx);
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const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len);
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void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
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int enabled);
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void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
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int valid);
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void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth);
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int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen);
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int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
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char *buf, size_t buflen);
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void hostapd_get_ntp_timestamp(u8 *buf);
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char *eap_type_text(u8 type);
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struct radius_class_data;
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void ieee802_1x_free_radius_class(struct radius_class_data *class);
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int ieee802_1x_copy_radius_class(struct radius_class_data *dst,
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2008-08-03 13:17:58 -04:00
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const struct radius_class_data *src);
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2008-02-27 20:34:43 -05:00
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#endif /* IEEE802_1X_H */
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