contrib/wpa_supplicant-0.5.8/eap_tls_common.h

   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 */