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ssl.h
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ssl.h
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#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);
#ifdef FEATURE_GRACEFUL_TERMINATION
extern void ssl_release(void);
#endif
#endif /* ndef SSL_H_INCLUDED */