contrib/wpa_supplicant/src/tls/tlsv1_client_i.h

   1 /*
   2  * TLSv1 client - internal structures
   3  * Copyright (c) 2006-2007, 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 TLSV1_CLIENT_I_H
  16 #define TLSV1_CLIENT_I_H
  17
  18 struct tlsv1_client {
  19         enum {
  20                 CLIENT_HELLO, SERVER_HELLO, SERVER_CERTIFICATE,
  21                 SERVER_KEY_EXCHANGE, SERVER_CERTIFICATE_REQUEST,
  22                 SERVER_HELLO_DONE, CLIENT_KEY_EXCHANGE, CHANGE_CIPHER_SPEC,
  23                 SERVER_CHANGE_CIPHER_SPEC, SERVER_FINISHED, ACK_FINISHED,
  24                 ESTABLISHED, FAILED
  25         } state;
  26
  27         struct tlsv1_record_layer rl;
  28
  29         u8 session_id[TLS_SESSION_ID_MAX_LEN];
  30         size_t session_id_len;
  31         u8 client_random[TLS_RANDOM_LEN];
  32         u8 server_random[TLS_RANDOM_LEN];
  33         u8 master_secret[TLS_MASTER_SECRET_LEN];
  34
  35         u8 alert_level;
  36         u8 alert_description;
  37
  38         unsigned int certificate_requested:1;
  39         unsigned int session_resumed:1;
  40         unsigned int session_ticket_included:1;
  41         unsigned int use_session_ticket:1;
  42
  43         struct crypto_public_key *server_rsa_key;
  44
  45         struct tls_verify_hash verify;
  46
  47 #define MAX_CIPHER_COUNT 30
  48         u16 cipher_suites[MAX_CIPHER_COUNT];
  49         size_t num_cipher_suites;
  50
  51         u16 prev_cipher_suite;
  52
  53         u8 *client_hello_ext;
  54         size_t client_hello_ext_len;
  55
  56         /* The prime modulus used for Diffie-Hellman */
  57         u8 *dh_p;
  58         size_t dh_p_len;
  59         /* The generator used for Diffie-Hellman */
  60         u8 *dh_g;
  61         size_t dh_g_len;
  62         /* The server's Diffie-Hellman public value */
  63         u8 *dh_ys;
  64         size_t dh_ys_len;
  65
  66         struct tlsv1_credentials *cred;
  67
  68         tlsv1_client_session_ticket_cb session_ticket_cb;
  69         void *session_ticket_cb_ctx;
  70 };
  71
  72
  73 void tls_alert(struct tlsv1_client *conn, u8 level, u8 description);
  74 void tlsv1_client_free_dh(struct tlsv1_client *conn);
  75 int tls_derive_pre_master_secret(u8 *pre_master_secret);
  76 int tls_derive_keys(struct tlsv1_client *conn,
  77                     const u8 *pre_master_secret, size_t pre_master_secret_len);
  78 u8 * tls_send_client_hello(struct tlsv1_client *conn, size_t *out_len);
  79 u8 * tlsv1_client_send_alert(struct tlsv1_client *conn, u8 level,
  80                              u8 description, size_t *out_len);
  81 u8 * tlsv1_client_handshake_write(struct tlsv1_client *conn, size_t *out_len,
  82                                   int no_appl_data);
  83 int tlsv1_client_process_handshake(struct tlsv1_client *conn, u8 ct,
  84                                    const u8 *buf, size_t *len,
  85                                    u8 **out_data, size_t *out_len);
  86
  87 #endif /* TLSV1_CLIENT_I_H */