wpa_supplicant_node: tlsv1_client

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00001 /*
00002  * TLSv1 client - internal structures
00003  * Copyright (c) 2006-2007, Jouni Malinen <j@w1.fi>
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 2 as
00007  * published by the Free Software Foundation.
00008  *
00009  * Alternatively, this software may be distributed under the terms of BSD
00010  * license.
00011  *
00012  * See README and COPYING for more details.
00013  */
00014 
00015 #ifndef TLSV1_CLIENT_I_H
00016 #define TLSV1_CLIENT_I_H
00017 
00018 struct tlsv1_client {
00019         enum {
00020                 CLIENT_HELLO, SERVER_HELLO, SERVER_CERTIFICATE,
00021                 SERVER_KEY_EXCHANGE, SERVER_CERTIFICATE_REQUEST,
00022                 SERVER_HELLO_DONE, CLIENT_KEY_EXCHANGE, CHANGE_CIPHER_SPEC,
00023                 SERVER_CHANGE_CIPHER_SPEC, SERVER_FINISHED, ACK_FINISHED,
00024                 ESTABLISHED, FAILED
00025         } state;
00026 
00027         struct tlsv1_record_layer rl;
00028 
00029         u8 session_id[TLS_SESSION_ID_MAX_LEN];
00030         size_t session_id_len;
00031         u8 client_random[TLS_RANDOM_LEN];
00032         u8 server_random[TLS_RANDOM_LEN];
00033         u8 master_secret[TLS_MASTER_SECRET_LEN];
00034 
00035         u8 alert_level;
00036         u8 alert_description;
00037 
00038         unsigned int certificate_requested:1;
00039         unsigned int session_resumed:1;
00040         unsigned int session_ticket_included:1;
00041         unsigned int use_session_ticket:1;
00042 
00043         struct crypto_public_key *server_rsa_key;
00044 
00045         struct tls_verify_hash verify;
00046 
00047 #define MAX_CIPHER_COUNT 30
00048         u16 cipher_suites[MAX_CIPHER_COUNT];
00049         size_t num_cipher_suites;
00050 
00051         u16 prev_cipher_suite;
00052 
00053         u8 *client_hello_ext;
00054         size_t client_hello_ext_len;
00055 
00056         /* The prime modulus used for Diffie-Hellman */
00057         u8 *dh_p;
00058         size_t dh_p_len;
00059         /* The generator used for Diffie-Hellman */
00060         u8 *dh_g;
00061         size_t dh_g_len;
00062         /* The server's Diffie-Hellman public value */
00063         u8 *dh_ys;
00064         size_t dh_ys_len;
00065 
00066         struct tlsv1_credentials *cred;
00067 
00068         tlsv1_client_session_ticket_cb session_ticket_cb;
00069         void *session_ticket_cb_ctx;
00070 };
00071 
00072 
00073 void tls_alert(struct tlsv1_client *conn, u8 level, u8 description);
00074 void tlsv1_client_free_dh(struct tlsv1_client *conn);
00075 int tls_derive_pre_master_secret(u8 *pre_master_secret);
00076 int tls_derive_keys(struct tlsv1_client *conn,
00077                     const u8 *pre_master_secret, size_t pre_master_secret_len);
00078 u8 * tls_send_client_hello(struct tlsv1_client *conn, size_t *out_len);
00079 u8 * tlsv1_client_send_alert(struct tlsv1_client *conn, u8 level,
00080                              u8 description, size_t *out_len);
00081 u8 * tlsv1_client_handshake_write(struct tlsv1_client *conn, size_t *out_len,
00082                                   int no_appl_data);
00083 int tlsv1_client_process_handshake(struct tlsv1_client *conn, u8 ct,
00084                                    const u8 *buf, size_t *len,
00085                                    u8 **out_data, size_t *out_len);
00086 
00087 #endif /* TLSV1_CLIENT_I_H */