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#ifndef TLS_H
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#define TLS_H
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/*
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* Copyright (C) 2009 Vic Lee.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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/* Handle Anonymous TLS Authentication (18) with the server.
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* After authentication, client->tlsSession will be set.
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*/
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rfbBool HandleAnonTLSAuth(rfbClient* client);
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/* Handle VeNCrypt Authentication (19) with the server.
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* The callback function GetX509Credential will be called.
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* After authentication, client->tlsSession will be set.
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*/
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rfbBool HandleVeNCryptAuth(rfbClient* client);
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/* Read desired bytes from TLS session.
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* It's a wrapper function over gnutls_record_recv() and return values
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* are same as read(), that is, >0 for actual bytes read, 0 for EOF,
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* or EAGAIN, EINTR.
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* This should be a non-blocking call. Blocking is handled in sockets.c.
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*/
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int ReadFromTLS(rfbClient* client, char *out, unsigned int n);
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/* Write desired bytes to TLS session.
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* It's a wrapper function over gnutls_record_send() and it will be
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* blocking call, until all bytes are written or error returned.
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*/
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int WriteToTLS(rfbClient* client, char *buf, unsigned int n);
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/* Free TLS resources */
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void FreeTLS(rfbClient* client);
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#ifdef LIBVNCSERVER_HAVE_SASL
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/* Get the number of bits in the current cipher */
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int GetTLSCipherBits(rfbClient* client);
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#endif /* LIBVNCSERVER_HAVE_SASL */
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#endif /* TLS_H */
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