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 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 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 73 74 void tls_alert(struct tlsv1_client *conn, u8 level, u8 description); 75 void tlsv1_client_free_dh(struct tlsv1_client *conn); 76 int tls_derive_pre_master_secret(u8 *pre_master_secret); 77 int tls_derive_keys(struct tlsv1_client *conn, 78 const u8 *pre_master_secret, size_t pre_master_secret_len); 79 u8 * tls_send_client_hello(struct tlsv1_client *conn, size_t *out_len); 80 u8 * tlsv1_client_send_alert(struct tlsv1_client *conn, u8 level, 81 u8 description, size_t *out_len); 82 u8 * tlsv1_client_handshake_write(struct tlsv1_client *conn, size_t *out_len, 83 int no_appl_data); 84 int tlsv1_client_process_handshake(struct tlsv1_client *conn, u8 ct, 85 const u8 *buf, size_t *len, 86 u8 **out_data, size_t *out_len); 87 88 #endif /* TLSV1_CLIENT_I_H */ 89