1 /* 2 * TLSv1 client - internal structures 3 * Copyright (c) 2006-2011, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #ifndef TLSV1_CLIENT_I_H 10 #define TLSV1_CLIENT_I_H 11 12 struct tlsv1_client { 13 enum { 14 CLIENT_HELLO, SERVER_HELLO, SERVER_CERTIFICATE, 15 SERVER_KEY_EXCHANGE, SERVER_CERTIFICATE_REQUEST, 16 SERVER_HELLO_DONE, CLIENT_KEY_EXCHANGE, CHANGE_CIPHER_SPEC, 17 SERVER_CHANGE_CIPHER_SPEC, SERVER_FINISHED, ACK_FINISHED, 18 ESTABLISHED, FAILED 19 } state; 20 21 struct tlsv1_record_layer rl; 22 23 u8 session_id[TLS_SESSION_ID_MAX_LEN]; 24 size_t session_id_len; 25 u8 client_random[TLS_RANDOM_LEN]; 26 u8 server_random[TLS_RANDOM_LEN]; 27 u8 master_secret[TLS_MASTER_SECRET_LEN]; 28 29 u8 alert_level; 30 u8 alert_description; 31 32 unsigned int certificate_requested:1; 33 unsigned int session_resumed:1; 34 unsigned int session_ticket_included:1; 35 unsigned int use_session_ticket:1; 36 unsigned int disable_time_checks:1; 37 38 struct crypto_public_key *server_rsa_key; 39 40 struct tls_verify_hash verify; 41 42 #define MAX_CIPHER_COUNT 30 43 u16 cipher_suites[MAX_CIPHER_COUNT]; 44 size_t num_cipher_suites; 45 46 u16 prev_cipher_suite; 47 48 u8 *client_hello_ext; 49 size_t client_hello_ext_len; 50 51 /* The prime modulus used for Diffie-Hellman */ 52 u8 *dh_p; 53 size_t dh_p_len; 54 /* The generator used for Diffie-Hellman */ 55 u8 *dh_g; 56 size_t dh_g_len; 57 /* The server's Diffie-Hellman public value */ 58 u8 *dh_ys; 59 size_t dh_ys_len; 60 61 struct tlsv1_credentials *cred; 62 63 tlsv1_client_session_ticket_cb session_ticket_cb; 64 void *session_ticket_cb_ctx; 65 66 struct wpabuf *partial_input; 67 }; 68 69 70 void tls_alert(struct tlsv1_client *conn, u8 level, u8 description); 71 void tlsv1_client_free_dh(struct tlsv1_client *conn); 72 int tls_derive_pre_master_secret(u8 *pre_master_secret); 73 int tls_derive_keys(struct tlsv1_client *conn, 74 const u8 *pre_master_secret, size_t pre_master_secret_len); 75 u8 * tls_send_client_hello(struct tlsv1_client *conn, size_t *out_len); 76 u8 * tlsv1_client_send_alert(struct tlsv1_client *conn, u8 level, 77 u8 description, size_t *out_len); 78 u8 * tlsv1_client_handshake_write(struct tlsv1_client *conn, size_t *out_len, 79 int no_appl_data); 80 int tlsv1_client_process_handshake(struct tlsv1_client *conn, u8 ct, 81 const u8 *buf, size_t *len, 82 u8 **out_data, size_t *out_len); 83 84 #endif /* TLSV1_CLIENT_I_H */ 85