tlsv1_client_i.h revision 1f69aa52ea2e0a73ac502565df8c666ee49cab6a 
1/*
2 * TLSv1 client - internal structures
3 * Copyright (c) 2006-2011, 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
18struct 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	unsigned int disable_time_checks:1;
43
44	struct crypto_public_key *server_rsa_key;
45
46	struct tls_verify_hash verify;
47
48#define MAX_CIPHER_COUNT 30
49	u16 cipher_suites[MAX_CIPHER_COUNT];
50	size_t num_cipher_suites;
51
52	u16 prev_cipher_suite;
53
54	u8 *client_hello_ext;
55	size_t client_hello_ext_len;
56
57	/* The prime modulus used for Diffie-Hellman */
58	u8 *dh_p;
59	size_t dh_p_len;
60	/* The generator used for Diffie-Hellman */
61	u8 *dh_g;
62	size_t dh_g_len;
63	/* The server's Diffie-Hellman public value */
64	u8 *dh_ys;
65	size_t dh_ys_len;
66
67	struct tlsv1_credentials *cred;
68
69	tlsv1_client_session_ticket_cb session_ticket_cb;
70	void *session_ticket_cb_ctx;
71
72	struct wpabuf *partial_input;
73};
74
75
76void tls_alert(struct tlsv1_client *conn, u8 level, u8 description);
77void tlsv1_client_free_dh(struct tlsv1_client *conn);
78int tls_derive_pre_master_secret(u8 *pre_master_secret);
79int tls_derive_keys(struct tlsv1_client *conn,
80		    const u8 *pre_master_secret, size_t pre_master_secret_len);
81u8 * tls_send_client_hello(struct tlsv1_client *conn, size_t *out_len);
82u8 * tlsv1_client_send_alert(struct tlsv1_client *conn, u8 level,
83			     u8 description, size_t *out_len);
84u8 * tlsv1_client_handshake_write(struct tlsv1_client *conn, size_t *out_len,
85				  int no_appl_data);
86int tlsv1_client_process_handshake(struct tlsv1_client *conn, u8 ct,
87				   const u8 *buf, size_t *len,
88				   u8 **out_data, size_t *out_len);
89
90#endif /* TLSV1_CLIENT_I_H */
91