1 /* 2 * hostapd / EAP Full Authenticator state machine (RFC 4137) 3 * Copyright (c) 2004-2007, Jouni Malinen <j@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 EAP_H 10 #define EAP_H 11 12 #include "common/defs.h" 13 #include "eap_common/eap_defs.h" 14 #include "eap_server/eap_methods.h" 15 #include "wpabuf.h" 16 17 struct eap_sm; 18 19 #define EAP_TTLS_AUTH_PAP 1 20 #define EAP_TTLS_AUTH_CHAP 2 21 #define EAP_TTLS_AUTH_MSCHAP 4 22 #define EAP_TTLS_AUTH_MSCHAPV2 8 23 24 struct eap_user { 25 struct { 26 int vendor; 27 u32 method; 28 } methods[EAP_MAX_METHODS]; 29 u8 *password; 30 size_t password_len; 31 int password_hash; /* whether password is hashed with 32 * nt_password_hash() */ 33 int phase2; 34 int force_version; 35 int ttls_auth; /* bitfield of 36 * EAP_TTLS_AUTH_{PAP,CHAP,MSCHAP,MSCHAPV2} */ 37 }; 38 39 struct eap_eapol_interface { 40 /* Lower layer to full authenticator variables */ 41 Boolean eapResp; /* shared with EAPOL Backend Authentication */ 42 struct wpabuf *eapRespData; 43 Boolean portEnabled; 44 int retransWhile; 45 Boolean eapRestart; /* shared with EAPOL Authenticator PAE */ 46 int eapSRTT; 47 int eapRTTVAR; 48 49 /* Full authenticator to lower layer variables */ 50 Boolean eapReq; /* shared with EAPOL Backend Authentication */ 51 Boolean eapNoReq; /* shared with EAPOL Backend Authentication */ 52 Boolean eapSuccess; 53 Boolean eapFail; 54 Boolean eapTimeout; 55 struct wpabuf *eapReqData; 56 u8 *eapKeyData; 57 size_t eapKeyDataLen; 58 Boolean eapKeyAvailable; /* called keyAvailable in IEEE 802.1X-2004 */ 59 60 /* AAA interface to full authenticator variables */ 61 Boolean aaaEapReq; 62 Boolean aaaEapNoReq; 63 Boolean aaaSuccess; 64 Boolean aaaFail; 65 struct wpabuf *aaaEapReqData; 66 u8 *aaaEapKeyData; 67 size_t aaaEapKeyDataLen; 68 Boolean aaaEapKeyAvailable; 69 int aaaMethodTimeout; 70 71 /* Full authenticator to AAA interface variables */ 72 Boolean aaaEapResp; 73 struct wpabuf *aaaEapRespData; 74 /* aaaIdentity -> eap_get_identity() */ 75 Boolean aaaTimeout; 76 }; 77 78 struct eapol_callbacks { 79 int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len, 80 int phase2, struct eap_user *user); 81 const char * (*get_eap_req_id_text)(void *ctx, size_t *len); 82 }; 83 84 struct eap_config { 85 void *ssl_ctx; 86 void *msg_ctx; 87 void *eap_sim_db_priv; 88 Boolean backend_auth; 89 int eap_server; 90 u16 pwd_group; 91 u8 *pac_opaque_encr_key; 92 u8 *eap_fast_a_id; 93 size_t eap_fast_a_id_len; 94 char *eap_fast_a_id_info; 95 int eap_fast_prov; 96 int pac_key_lifetime; 97 int pac_key_refresh_time; 98 int eap_sim_aka_result_ind; 99 int tnc; 100 struct wps_context *wps; 101 const struct wpabuf *assoc_wps_ie; 102 const struct wpabuf *assoc_p2p_ie; 103 const u8 *peer_addr; 104 int fragment_size; 105 106 int pbc_in_m1; 107 }; 108 109 110 struct eap_sm * eap_server_sm_init(void *eapol_ctx, 111 struct eapol_callbacks *eapol_cb, 112 struct eap_config *eap_conf); 113 void eap_server_sm_deinit(struct eap_sm *sm); 114 int eap_server_sm_step(struct eap_sm *sm); 115 void eap_sm_notify_cached(struct eap_sm *sm); 116 void eap_sm_pending_cb(struct eap_sm *sm); 117 int eap_sm_method_pending(struct eap_sm *sm); 118 const u8 * eap_get_identity(struct eap_sm *sm, size_t *len); 119 struct eap_eapol_interface * eap_get_interface(struct eap_sm *sm); 120 void eap_server_clear_identity(struct eap_sm *sm); 121 122 #endif /* EAP_H */ 123