1 /* 2 * hostapd / IEEE 802.1X-2004 Authenticator 3 * Copyright (c) 2002-2007, Jouni Malinen <j (at) w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #ifndef IEEE802_1X_H 10 #define IEEE802_1X_H 11 12 struct hostapd_data; 13 struct sta_info; 14 struct eapol_state_machine; 15 struct hostapd_config; 16 struct hostapd_bss_config; 17 18 #ifdef _MSC_VER 19 #pragma pack(push, 1) 20 #endif /* _MSC_VER */ 21 22 /* RFC 3580, 4. RC4 EAPOL-Key Frame */ 23 24 struct ieee802_1x_eapol_key { 25 u8 type; 26 u16 key_length; 27 u8 replay_counter[8]; /* does not repeat within the life of the keying 28 * material used to encrypt the Key field; 29 * 64-bit NTP timestamp MAY be used here */ 30 u8 key_iv[16]; /* cryptographically random number */ 31 u8 key_index; /* key flag in the most significant bit: 32 * 0 = broadcast (default key), 33 * 1 = unicast (key mapping key); key index is in the 34 * 7 least significant bits */ 35 u8 key_signature[16]; /* HMAC-MD5 message integrity check computed with 36 * MS-MPPE-Send-Key as the key */ 37 38 /* followed by key: if packet body length = 44 + key length, then the 39 * key field (of key_length bytes) contains the key in encrypted form; 40 * if packet body length = 44, key field is absent and key_length 41 * represents the number of least significant octets from 42 * MS-MPPE-Send-Key attribute to be used as the keying material; 43 * RC4 key used in encryption = Key-IV + MS-MPPE-Recv-Key */ 44 } STRUCT_PACKED; 45 46 #ifdef _MSC_VER 47 #pragma pack(pop) 48 #endif /* _MSC_VER */ 49 50 51 void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf, 52 size_t len); 53 void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta); 54 void ieee802_1x_free_station(struct sta_info *sta); 55 56 void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta); 57 void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta); 58 void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd, 59 struct sta_info *sta, int authorized); 60 void ieee802_1x_dump_state(FILE *f, const char *prefix, struct sta_info *sta); 61 int ieee802_1x_init(struct hostapd_data *hapd); 62 void ieee802_1x_deinit(struct hostapd_data *hapd); 63 int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta, 64 const u8 *buf, size_t len, int ack); 65 int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta, 66 const u8 *data, int len, int ack); 67 u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len); 68 u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len, 69 int idx); 70 const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len); 71 void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm, 72 int enabled); 73 void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm, 74 int valid); 75 void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth); 76 int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen); 77 int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, 78 char *buf, size_t buflen); 79 void hostapd_get_ntp_timestamp(u8 *buf); 80 char *eap_type_text(u8 type); 81 82 const char *radius_mode_txt(struct hostapd_data *hapd); 83 int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta); 84 85 #endif /* IEEE802_1X_H */ 86
