contrib/hostapd-0.5.8/eap_tls_common.h

   1 /*
   2  * hostapd / EAP-TLS/PEAP/TTLS 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
  32         struct eap_sm *eap;
  33 };
  34
  35
  36 /* EAP TLS Flags */
  37 #define EAP_TLS_FLAGS_LENGTH_INCLUDED 0x80
  38 #define EAP_TLS_FLAGS_MORE_FRAGMENTS 0x40
  39 #define EAP_TLS_FLAGS_START 0x20
  40 #define EAP_PEAP_VERSION_MASK 0x07
  41
  42  /* could be up to 128 bytes, but only the first 64 bytes are used */
  43 #define EAP_TLS_KEY_LEN 64
  44
  45
  46 int eap_tls_ssl_init(struct eap_sm *sm, struct eap_ssl_data *data,
  47                      int verify_peer);
  48 void eap_tls_ssl_deinit(struct eap_sm *sm, struct eap_ssl_data *data);
  49 u8 * eap_tls_derive_key(struct eap_sm *sm, struct eap_ssl_data *data,
  50                         char *label, size_t len);
  51 int eap_tls_data_reassemble(struct eap_sm *sm, struct eap_ssl_data *data,
  52                             u8 **in_data, size_t *in_len);
  53 int eap_tls_process_helper(struct eap_sm *sm, struct eap_ssl_data *data,
  54                            u8 *in_data, size_t in_len);
  55 int eap_tls_buildReq_helper(struct eap_sm *sm, struct eap_ssl_data *data,
  56                             int eap_type, int peap_version, u8 id,
  57                             u8 **out_data, size_t *out_len);
  58 u8 * eap_tls_build_ack(size_t *reqDataLen, u8 id, int eap_type,
  59                        int peap_version);
  60
  61 #endif /* EAP_TLS_COMMON_H */