#ifndef SSL_H_INCLUDED #define SSL_H_INCLUDED /********************************************************************* * * File : $Source: $ * * Purpose : File with TLS/SSL extension. Contains methods for * creating, using and closing TLS/SSL connections. * * Copyright : Written by and Copyright (c) 2017 Vaclav Svec. FIT CVUT. * * This program is free software; you can redistribute it * and/or modify it under the terms of the GNU General * Public License as published by the Free Software * Foundation; either version 2 of the License, or (at * your option) any later version. * * This program is distributed in the hope that it will * be useful, but WITHOUT ANY WARRANTY; without even the * implied warranty of MERCHANTABILITY or FITNESS FOR A * PARTICULAR PURPOSE. See the GNU General Public * License for more details. * * The GNU General Public License should be included with * this file. If not, you can view it at * http://www.gnu.org/copyleft/gpl.html * or write to the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston, MA 02111-1307, USA. * *********************************************************************/ #include "project.h" /* Boolean functions to get information about TLS/SSL connections */ extern int client_use_ssl(const struct client_state *csp); extern int server_use_ssl(const struct client_state *csp); extern size_t is_ssl_pending(struct ssl_attr *ssl_attr); extern int tunnel_established_successfully(const char *response, unsigned int response_len); /* Functions for sending and receiving data over TLS/SSL connections */ extern int ssl_send_data(struct ssl_attr *ssl_attr, const unsigned char *buf, size_t len); extern int ssl_send_data_delayed(struct ssl_attr *ssl_attr, const unsigned char *buf, size_t len, unsigned int delay); extern int ssl_recv_data(struct ssl_attr *ssl_attr, unsigned char *buf, size_t maxLen); extern long ssl_flush_socket(struct ssl_attr *ssl_attr, struct iob *iob); extern void ssl_send_certificate_error(struct client_state *csp); /* Functions for opening and closing TLS/SSL connections */ extern int create_client_ssl_connection(struct client_state *csp); extern int create_server_ssl_connection(struct client_state *csp); extern void close_client_and_server_ssl_connections(struct client_state *csp); extern void close_server_ssl_connection(struct client_state *csp); extern void close_client_ssl_connection(struct client_state *csp); /* misc helper functions */ extern int ssl_base64_encode(unsigned char *dst, size_t dlen, size_t *olen, const unsigned char *src, size_t slen ); extern void ssl_crt_verify_info(char *buf, size_t size, struct client_state *csp); extern void ssl_release(void); #endif /* ndef SSL_H_INCLUDED */