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#ifndef TLS_H
#define TLS_H
/*
* Copyright (C) 2009 Vic Lee.
*
* This 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 software 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.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
/* Handle Anonymous TLS Authentication (18) with the server.
* After authentication, client->tlsSession will be set.
*/
rfbBool HandleAnonTLSAuth(rfbClient* client);
/* Handle VeNCrypt Authentication (19) with the server.
* The callback function GetX509Credential will be called.
* After authentication, client->tlsSession will be set.
*/
rfbBool HandleVeNCryptAuth(rfbClient* client);
/* Read desired bytes from TLS session.
* It's a wrapper function over gnutls_record_recv() and return values
* are same as read(), that is, >0 for actual bytes read, 0 for EOF,
* or EAGAIN, EINTR.
* This should be a non-blocking call. Blocking is handled in sockets.c.
*/
int ReadFromTLS(rfbClient* client, char *out, unsigned int n);
/* Write desired bytes to TLS session.
* It's a wrapper function over gnutls_record_send() and it will be
* blocking call, until all bytes are written or error returned.
*/
int WriteToTLS(rfbClient* client, char *buf, unsigned int n);
/* Free TLS resources */
void FreeTLS(rfbClient* client);
#ifdef LIBVNCSERVER_HAVE_SASL
/* Get the number of bits in the current cipher */
int GetTLSCipherBits(rfbClient* client);
#endif /* LIBVNCSERVER_HAVE_SASL */
#endif /* TLS_H */
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