1 /* 2 * EAP peer: EAP-TLS/PEAP/TTLS/FAST common functions 3 * Copyright (c) 2004-2005, Jouni Malinen <j@w1.fi> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * Alternatively, this software may be distributed under the terms of BSD 10 * license. 11 * 12 * See README and COPYING for more details. 13 */ 14 15 #ifndef EAP_TLS_COMMON_H 16 #define EAP_TLS_COMMON_H 17 18 struct eap_ssl_data { 19 struct tls_connection *conn; 20 21 u8 *tls_out; 22 size_t tls_out_len; 23 size_t tls_out_pos; 24 size_t tls_out_limit; 25 u8 *tls_in; 26 size_t tls_in_len; 27 size_t tls_in_left; 28 size_t tls_in_total; 29 30 int phase2; 31 int include_tls_length; /* include TLS length field even if the TLS 32 * data is not fragmented */ 33 int tls_ia; /* Enable TLS/IA */ 34 35 struct eap_sm *eap; 36 }; 37 38 39 /* EAP TLS Flags */ 40 #define EAP_TLS_FLAGS_LENGTH_INCLUDED 0x80 41 #define EAP_TLS_FLAGS_MORE_FRAGMENTS 0x40 42 #define EAP_TLS_FLAGS_START 0x20 43 #define EAP_PEAP_VERSION_MASK 0x07 44 45 /* could be up to 128 bytes, but only the first 64 bytes are used */ 46 #define EAP_TLS_KEY_LEN 64 47 48 49 int eap_tls_ssl_init(struct eap_sm *sm, struct eap_ssl_data *data, 50 struct wpa_ssid *config); 51 void eap_tls_ssl_deinit(struct eap_sm *sm, struct eap_ssl_data *data); 52 u8 * eap_tls_derive_key(struct eap_sm *sm, struct eap_ssl_data *data, 53 const char *label, size_t len); 54 const u8 * eap_tls_data_reassemble( 55 struct eap_sm *sm, struct eap_ssl_data *data, const u8 *in_data, 56 size_t in_len, size_t *out_len, int *need_more_input); 57 int eap_tls_process_helper(struct eap_sm *sm, struct eap_ssl_data *data, 58 EapType eap_type, int peap_version, 59 u8 id, const u8 *in_data, size_t in_len, 60 u8 **out_data, size_t *out_len); 61 u8 * eap_tls_build_ack(struct eap_ssl_data *data, size_t *respDataLen, u8 id, 62 EapType eap_type, int peap_version); 63 int eap_tls_reauth_init(struct eap_sm *sm, struct eap_ssl_data *data); 64 int eap_tls_status(struct eap_sm *sm, struct eap_ssl_data *data, char *buf, 65 size_t buflen, int verbose); 66 const u8 * eap_tls_process_init(struct eap_sm *sm, struct eap_ssl_data *data, 67 EapType eap_type, struct eap_method_ret *ret, 68 const u8 *reqData, size_t reqDataLen, 69 size_t *len, u8 *flags); 70 71 #endif /* EAP_TLS_COMMON_H */ 72