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1432 lines
49 KiB
1432 lines
49 KiB
#ifndef RFBPROTO_H
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#define RFBPROTO_H
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/**
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@mainpage
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@li @ref libvncserver_api
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@li @ref libvncserver_doc
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@li @ref libvncclient_api
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@li @ref libvncclient_doc
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*/
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/*
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* Copyright (C) 2005 Rohit Kumar, Johannes E. Schindelin
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* Copyright (C) 2000-2002 Constantin Kaplinsky. All Rights Reserved.
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* Copyright (C) 2000 Tridia Corporation. All Rights Reserved.
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* Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
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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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/*
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* rfbproto.h - header file for the RFB protocol version 3.3
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*
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* Uses types CARD<n> for an n-bit unsigned integer, INT<n> for an n-bit signed
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* integer (for n = 8, 16 and 32).
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*
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* All multiple byte integers are in big endian (network) order (most
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* significant byte first). Unless noted otherwise there is no special
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* alignment of protocol structures.
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*
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*
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* Once the initial handshaking is done, all messages start with a type byte,
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* (usually) followed by message-specific data. The order of definitions in
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* this file is as follows:
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*
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* (1) Structures used in several types of message.
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* (2) Structures used in the initial handshaking.
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* (3) Message types.
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* (4) Encoding types.
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* (5) For each message type, the form of the data following the type byte.
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* Sometimes this is defined by a single structure but the more complex
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* messages have to be explained by comments.
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*/
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#if defined(WIN32) && !defined(__MINGW32__)
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#define LIBVNCSERVER_WORDS_BIGENDIAN
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#define rfbBool int
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#include <sys/timeb.h>
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#include <winsock.h>
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#undef SOCKET
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#define SOCKET int
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#else
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#include <rfb/rfbconfig.h>
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#include <rfb/rfbint.h>
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#endif
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#ifdef LIBVNCSERVER_HAVE_LIBZ
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#include <zlib.h>
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#ifdef __CHECKER__
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#undef Z_NULL
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#define Z_NULL NULL
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#endif
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#endif
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/* some autotool versions do not properly prefix
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WORDS_BIGENDIAN, so do that manually */
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#ifdef WORDS_BIGENDIAN
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#define LIBVNCSERVER_WORDS_BIGENDIAN
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#endif
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/* MS compilers don't have strncasecmp */
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#ifdef _MSC_VER
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#define strncasecmp _strnicmp
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#endif
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#if !defined(WIN32) || defined(__MINGW32__)
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#define max(a,b) (((a)>(b))?(a):(b))
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#ifdef LIBVNCSERVER_HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef LIBVNCSERVER_HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#define SOCKET int
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typedef int8_t rfbBool;
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#undef FALSE
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#define FALSE 0
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#undef TRUE
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#define TRUE -1
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#endif
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typedef uint32_t rfbKeySym;
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typedef uint32_t rfbPixel;
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#ifdef LIBVNCSERVER_NEED_INADDR_T
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typedef uint32_t in_addr_t;
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#endif
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#ifndef INADDR_NONE
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#define INADDR_NONE ((in_addr_t) 0xffffffff)
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#endif
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#define MAX_ENCODINGS 21
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/*****************************************************************************
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*
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* Structures used in several messages
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*
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*****************************************************************************/
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/*-----------------------------------------------------------------------------
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* Structure used to specify a rectangle. This structure is a multiple of 4
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* bytes so that it can be interspersed with 32-bit pixel data without
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* affecting alignment.
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*/
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typedef struct {
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uint16_t x;
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uint16_t y;
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uint16_t w;
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uint16_t h;
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} rfbRectangle;
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#define sz_rfbRectangle 8
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/*-----------------------------------------------------------------------------
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* Structure used to specify pixel format.
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*/
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typedef struct {
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uint8_t bitsPerPixel; /* 8,16,32 only */
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uint8_t depth; /* 8 to 32 */
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uint8_t bigEndian; /* True if multi-byte pixels are interpreted
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as big endian, or if single-bit-per-pixel
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has most significant bit of the byte
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corresponding to first (leftmost) pixel. Of
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course this is meaningless for 8 bits/pix */
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uint8_t trueColour; /* If false then we need a "colour map" to
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convert pixels to RGB. If true, xxxMax and
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xxxShift specify bits used for red, green
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and blue */
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/* the following fields are only meaningful if trueColour is true */
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uint16_t redMax; /* maximum red value (= 2^n - 1 where n is the
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number of bits used for red). Note this
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value is always in big endian order. */
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uint16_t greenMax; /* similar for green */
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uint16_t blueMax; /* and blue */
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uint8_t redShift; /* number of shifts needed to get the red
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value in a pixel to the least significant
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bit. To find the red value from a given
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pixel, do the following:
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1) Swap pixel value according to bigEndian
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(e.g. if bigEndian is false and host byte
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order is big endian, then swap).
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2) Shift right by redShift.
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3) AND with redMax (in host byte order).
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4) You now have the red value between 0 and
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redMax. */
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uint8_t greenShift; /* similar for green */
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uint8_t blueShift; /* and blue */
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uint8_t pad1;
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uint16_t pad2;
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} rfbPixelFormat;
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#define sz_rfbPixelFormat 16
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/* UltraVNC: Color settings values */
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#define rfbPFFullColors 0
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#define rfbPF256Colors 1
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#define rfbPF64Colors 2
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#define rfbPF8Colors 3
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#define rfbPF8GreyColors 4
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#define rfbPF4GreyColors 5
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#define rfbPF2GreyColors 6
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/*****************************************************************************
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*
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* Initial handshaking messages
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*
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*****************************************************************************/
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/*-----------------------------------------------------------------------------
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* Protocol Version
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*
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* The server always sends 12 bytes to start which identifies the latest RFB
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* protocol version number which it supports. These bytes are interpreted
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* as a string of 12 ASCII characters in the format "RFB xxx.yyy\n" where
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* xxx and yyy are the major and minor version numbers (for version 3.3
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* this is "RFB 003.003\n").
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*
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* The client then replies with a similar 12-byte message giving the version
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* number of the protocol which should actually be used (which may be different
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* to that quoted by the server).
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*
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* It is intended that both clients and servers may provide some level of
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* backwards compatibility by this mechanism. Servers in particular should
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* attempt to provide backwards compatibility, and even forwards compatibility
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* to some extent. For example if a client demands version 3.1 of the
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* protocol, a 3.0 server can probably assume that by ignoring requests for
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* encoding types it doesn't understand, everything will still work OK. This
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* will probably not be the case for changes in the major version number.
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*
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* The format string below can be used in sprintf or sscanf to generate or
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* decode the version string respectively.
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*/
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#define rfbProtocolVersionFormat "RFB %03d.%03d\n"
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#define rfbProtocolMajorVersion 3
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#define rfbProtocolMinorVersion 8
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/* UltraVNC Viewer examines rfbProtocolMinorVersion number (4, and 6)
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* to identify if the server supports File Transfer
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*/
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typedef char rfbProtocolVersionMsg[13]; /* allow extra byte for null */
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#define sz_rfbProtocolVersionMsg 12
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/*
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* Negotiation of the security type (protocol version 3.7)
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*
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* Once the protocol version has been decided, the server either sends a list
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* of supported security types, or informs the client about an error (when the
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* number of security types is 0). Security type rfbSecTypeTight is used to
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* enable TightVNC-specific protocol extensions. The value rfbSecTypeVncAuth
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* stands for classic VNC authentication.
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*
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* The client selects a particular security type from the list provided by the
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* server.
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*/
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#define rfbSecTypeInvalid 0
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#define rfbSecTypeNone 1
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#define rfbSecTypeVncAuth 2
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/*-----------------------------------------------------------------------------
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* Authentication
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*
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* Once the protocol version has been decided, the server then sends a 32-bit
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* word indicating whether any authentication is needed on the connection.
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* The value of this word determines the authentication scheme in use. For
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* version 3.0 of the protocol this may have one of the following values:
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*/
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#define rfbConnFailed 0
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#define rfbNoAuth 1
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#define rfbVncAuth 2
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#define rfbRA2 5
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#define rfbRA2ne 6
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#define rfbSSPI 7
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#define rfbSSPIne 8
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#define rfbTight 16
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#define rfbUltra 17
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#define rfbTLS 18
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#define rfbVeNCrypt 19
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#define rfbARD 30
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#define rfbMSLogon 0xfffffffa
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#define rfbVeNCryptPlain 256
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#define rfbVeNCryptTLSNone 257
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#define rfbVeNCryptTLSVNC 258
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#define rfbVeNCryptTLSPlain 259
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#define rfbVeNCryptX509None 260
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#define rfbVeNCryptX509VNC 261
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#define rfbVeNCryptX509Plain 262
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#define rfbVeNCryptX509SASL 263
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#define rfbVeNCryptTLSSASL 264
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/*
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* rfbConnFailed: For some reason the connection failed (e.g. the server
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* cannot support the desired protocol version). This is
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* followed by a string describing the reason (where a
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* string is specified as a 32-bit length followed by that
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* many ASCII characters).
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*
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* rfbNoAuth: No authentication is needed.
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*
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* rfbVncAuth: The VNC authentication scheme is to be used. A 16-byte
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* challenge follows, which the client encrypts as
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* appropriate using the password and sends the resulting
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* 16-byte response. If the response is correct, the
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* server sends the 32-bit word rfbVncAuthOK. If a simple
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* failure happens, the server sends rfbVncAuthFailed and
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* closes the connection. If the server decides that too
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* many failures have occurred, it sends rfbVncAuthTooMany
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* and closes the connection. In the latter case, the
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* server should not allow an immediate reconnection by
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* the client.
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*/
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#define rfbVncAuthOK 0
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#define rfbVncAuthFailed 1
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#define rfbVncAuthTooMany 2
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/*-----------------------------------------------------------------------------
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* Client Initialisation Message
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*
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* Once the client and server are sure that they're happy to talk to one
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* another, the client sends an initialisation message. At present this
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* message only consists of a boolean indicating whether the server should try
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* to share the desktop by leaving other clients connected, or give exclusive
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* access to this client by disconnecting all other clients.
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*/
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typedef struct {
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uint8_t shared;
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} rfbClientInitMsg;
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#define sz_rfbClientInitMsg 1
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/*-----------------------------------------------------------------------------
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* Server Initialisation Message
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*
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* After the client initialisation message, the server sends one of its own.
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* This tells the client the width and height of the server's framebuffer,
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* its pixel format and the name associated with the desktop.
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*/
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typedef struct {
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uint16_t framebufferWidth;
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uint16_t framebufferHeight;
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rfbPixelFormat format; /* the server's preferred pixel format */
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uint32_t nameLength;
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/* followed by char name[nameLength] */
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} rfbServerInitMsg;
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#define sz_rfbServerInitMsg (8 + sz_rfbPixelFormat)
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/*
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* Following the server initialisation message it's up to the client to send
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* whichever protocol messages it wants. Typically it will send a
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* SetPixelFormat message and a SetEncodings message, followed by a
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* FramebufferUpdateRequest. From then on the server will send
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* FramebufferUpdate messages in response to the client's
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* FramebufferUpdateRequest messages. The client should send
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* FramebufferUpdateRequest messages with incremental set to true when it has
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* finished processing one FramebufferUpdate and is ready to process another.
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* With a fast client, the rate at which FramebufferUpdateRequests are sent
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* should be regulated to avoid hogging the network.
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*/
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/*****************************************************************************
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*
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* Message types
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*
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*****************************************************************************/
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/* server -> client */
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#define rfbFramebufferUpdate 0
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#define rfbSetColourMapEntries 1
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#define rfbBell 2
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#define rfbServerCutText 3
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/* Modif sf@2002 */
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#define rfbResizeFrameBuffer 4
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#define rfbPalmVNCReSizeFrameBuffer 0xF
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/* client -> server */
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#define rfbSetPixelFormat 0
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#define rfbFixColourMapEntries 1 /* not currently supported */
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#define rfbSetEncodings 2
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#define rfbFramebufferUpdateRequest 3
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#define rfbKeyEvent 4
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#define rfbPointerEvent 5
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#define rfbClientCutText 6
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/* Modif sf@2002 - actually bidirectionnal */
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#define rfbFileTransfer 7
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/* Modif sf@2002 */
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#define rfbSetScale 8
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/* Modif rdv@2002 */
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#define rfbSetServerInput 9
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/* Modif rdv@2002 */
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#define rfbSetSW 10
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/* Modif sf@2002 - TextChat - Bidirectionnal */
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#define rfbTextChat 11
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/* Modif cs@2005 */
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/* PalmVNC 1.4 & 2.0 SetScale Factor message */
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#define rfbPalmVNCSetScaleFactor 0xF
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/* Xvp message - bidirectional */
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#define rfbXvp 250
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/*****************************************************************************
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*
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* Encoding types
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*
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*****************************************************************************/
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#define rfbEncodingRaw 0
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#define rfbEncodingCopyRect 1
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#define rfbEncodingRRE 2
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#define rfbEncodingCoRRE 4
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#define rfbEncodingHextile 5
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#define rfbEncodingZlib 6
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#define rfbEncodingTight 7
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#define rfbEncodingZlibHex 8
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#define rfbEncodingUltra 9
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#define rfbEncodingZRLE 16
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#define rfbEncodingZYWRLE 17
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/* Cache & XOR-Zlib - rdv@2002 */
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#define rfbEncodingCache 0xFFFF0000
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#define rfbEncodingCacheEnable 0xFFFF0001
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#define rfbEncodingXOR_Zlib 0xFFFF0002
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#define rfbEncodingXORMonoColor_Zlib 0xFFFF0003
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#define rfbEncodingXORMultiColor_Zlib 0xFFFF0004
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#define rfbEncodingSolidColor 0xFFFF0005
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#define rfbEncodingXOREnable 0xFFFF0006
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#define rfbEncodingCacheZip 0xFFFF0007
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#define rfbEncodingSolMonoZip 0xFFFF0008
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#define rfbEncodingUltraZip 0xFFFF0009
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/* Xvp pseudo-encoding */
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#define rfbEncodingXvp 0xFFFFFECB
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/*
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* Special encoding numbers:
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* 0xFFFFFF00 .. 0xFFFFFF0F -- encoding-specific compression levels;
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* 0xFFFFFF10 .. 0xFFFFFF1F -- mouse cursor shape data;
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* 0xFFFFFF20 .. 0xFFFFFF2F -- various protocol extensions;
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* 0xFFFFFF30 .. 0xFFFFFFDF -- not allocated yet;
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* 0xFFFFFFE0 .. 0xFFFFFFEF -- quality level for JPEG compressor;
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* 0xFFFFFFF0 .. 0xFFFFFFFF -- cross-encoding compression levels.
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*/
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#define rfbEncodingCompressLevel0 0xFFFFFF00
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#define rfbEncodingCompressLevel1 0xFFFFFF01
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#define rfbEncodingCompressLevel2 0xFFFFFF02
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#define rfbEncodingCompressLevel3 0xFFFFFF03
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#define rfbEncodingCompressLevel4 0xFFFFFF04
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#define rfbEncodingCompressLevel5 0xFFFFFF05
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#define rfbEncodingCompressLevel6 0xFFFFFF06
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#define rfbEncodingCompressLevel7 0xFFFFFF07
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#define rfbEncodingCompressLevel8 0xFFFFFF08
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#define rfbEncodingCompressLevel9 0xFFFFFF09
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#define rfbEncodingXCursor 0xFFFFFF10
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#define rfbEncodingRichCursor 0xFFFFFF11
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#define rfbEncodingPointerPos 0xFFFFFF18
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#define rfbEncodingLastRect 0xFFFFFF20
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#define rfbEncodingNewFBSize 0xFFFFFF21
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#define rfbEncodingQualityLevel0 0xFFFFFFE0
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#define rfbEncodingQualityLevel1 0xFFFFFFE1
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#define rfbEncodingQualityLevel2 0xFFFFFFE2
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#define rfbEncodingQualityLevel3 0xFFFFFFE3
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#define rfbEncodingQualityLevel4 0xFFFFFFE4
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#define rfbEncodingQualityLevel5 0xFFFFFFE5
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#define rfbEncodingQualityLevel6 0xFFFFFFE6
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#define rfbEncodingQualityLevel7 0xFFFFFFE7
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#define rfbEncodingQualityLevel8 0xFFFFFFE8
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#define rfbEncodingQualityLevel9 0xFFFFFFE9
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/* LibVNCServer additions. We claim 0xFFFE0000 - 0xFFFE00FF */
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#define rfbEncodingKeyboardLedState 0xFFFE0000
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#define rfbEncodingSupportedMessages 0xFFFE0001
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#define rfbEncodingSupportedEncodings 0xFFFE0002
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#define rfbEncodingServerIdentity 0xFFFE0003
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/*****************************************************************************
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*
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* Server -> client message definitions
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*
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*****************************************************************************/
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/*-----------------------------------------------------------------------------
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* FramebufferUpdate - a block of rectangles to be copied to the framebuffer.
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*
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* This message consists of a header giving the number of rectangles of pixel
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* data followed by the rectangles themselves. The header is padded so that
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* together with the type byte it is an exact multiple of 4 bytes (to help
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* with alignment of 32-bit pixels):
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*/
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typedef struct {
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uint8_t type; /* always rfbFramebufferUpdate */
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uint8_t pad;
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uint16_t nRects;
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/* followed by nRects rectangles */
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} rfbFramebufferUpdateMsg;
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#define sz_rfbFramebufferUpdateMsg 4
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|
/*
|
|
* Each rectangle of pixel data consists of a header describing the position
|
|
* and size of the rectangle and a type word describing the encoding of the
|
|
* pixel data, followed finally by the pixel data. Note that if the client has
|
|
* not sent a SetEncodings message then it will only receive raw pixel data.
|
|
* Also note again that this structure is a multiple of 4 bytes.
|
|
*/
|
|
|
|
typedef struct {
|
|
rfbRectangle r;
|
|
uint32_t encoding; /* one of the encoding types rfbEncoding... */
|
|
} rfbFramebufferUpdateRectHeader;
|
|
|
|
#define sz_rfbFramebufferUpdateRectHeader (sz_rfbRectangle + 4)
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* Supported Messages Encoding. This encoding does not contain any pixel data.
|
|
* Instead, it contains 2 sets of bitflags. These bitflags indicate what messages
|
|
* are supported by the server.
|
|
* rect->w contains byte count
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t client2server[32]; /* maximum of 256 message types (256/8)=32 */
|
|
uint8_t server2client[32]; /* maximum of 256 message types (256/8)=32 */
|
|
} rfbSupportedMessages;
|
|
|
|
#define sz_rfbSupportedMessages 64
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* Supported Encodings Encoding. This encoding does not contain any pixel data.
|
|
* Instead, it contains a list of (uint32_t) Encodings supported by this server.
|
|
* rect->w contains byte count
|
|
* rect->h contains encoding count
|
|
*/
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* Server Identity Encoding. This encoding does not contain any pixel data.
|
|
* Instead, it contains a text string containing information about the server.
|
|
* ie: "x11vnc: 0.8.1 lastmod: 2006-04-25 (libvncserver 0.9pre)\0"
|
|
* rect->w contains byte count
|
|
*/
|
|
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* Raw Encoding. Pixels are sent in top-to-bottom scanline order,
|
|
* left-to-right within a scanline with no padding in between.
|
|
*/
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* KeyboardLedState Encoding. The X coordinate contains the Locked Modifiers
|
|
* so that a remote troubleshooter can identify that the users 'Caps Lock'
|
|
* is set... (It helps a *lot* when the users are untrained)
|
|
*/
|
|
#define rfbKeyboardMaskShift 1
|
|
#define rfbKeyboardMaskCapsLock 2
|
|
#define rfbKeyboardMaskControl 4
|
|
#define rfbKeyboardMaskAlt 8
|
|
#define rfbKeyboardMaskMeta 16
|
|
#define rfbKeyboardMaskSuper 32
|
|
#define rfbKeyboardMaskHyper 64
|
|
#define rfbKeyboardMaskNumLock 128
|
|
#define rfbKeyboardMaskScrollLock 256
|
|
#define rfbKeyboardMaskAltGraph 512
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* CopyRect Encoding. The pixels are specified simply by the x and y position
|
|
* of the source rectangle.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint16_t srcX;
|
|
uint16_t srcY;
|
|
} rfbCopyRect;
|
|
|
|
#define sz_rfbCopyRect 4
|
|
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* RRE - Rise-and-Run-length Encoding. We have an rfbRREHeader structure
|
|
* giving the number of subrectangles following. Finally the data follows in
|
|
* the form [<bgpixel><subrect><subrect>...] where each <subrect> is
|
|
* [<pixel><rfbRectangle>].
|
|
*/
|
|
|
|
typedef struct {
|
|
uint32_t nSubrects;
|
|
} rfbRREHeader;
|
|
|
|
#define sz_rfbRREHeader 4
|
|
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* CoRRE - Compact RRE Encoding. We have an rfbRREHeader structure giving
|
|
* the number of subrectangles following. Finally the data follows in the form
|
|
* [<bgpixel><subrect><subrect>...] where each <subrect> is
|
|
* [<pixel><rfbCoRRERectangle>]. This means that
|
|
* the whole rectangle must be at most 255x255 pixels.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t x;
|
|
uint8_t y;
|
|
uint8_t w;
|
|
uint8_t h;
|
|
} rfbCoRRERectangle;
|
|
|
|
#define sz_rfbCoRRERectangle 4
|
|
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* Hextile Encoding. The rectangle is divided up into "tiles" of 16x16 pixels,
|
|
* starting at the top left going in left-to-right, top-to-bottom order. If
|
|
* the width of the rectangle is not an exact multiple of 16 then the width of
|
|
* the last tile in each row will be correspondingly smaller. Similarly if the
|
|
* height is not an exact multiple of 16 then the height of each tile in the
|
|
* final row will also be smaller. Each tile begins with a "subencoding" type
|
|
* byte, which is a mask made up of a number of bits. If the Raw bit is set
|
|
* then the other bits are irrelevant; w*h pixel values follow (where w and h
|
|
* are the width and height of the tile). Otherwise the tile is encoded in a
|
|
* similar way to RRE, except that the position and size of each subrectangle
|
|
* can be specified in just two bytes. The other bits in the mask are as
|
|
* follows:
|
|
*
|
|
* BackgroundSpecified - if set, a pixel value follows which specifies
|
|
* the background colour for this tile. The first non-raw tile in a
|
|
* rectangle must have this bit set. If this bit isn't set then the
|
|
* background is the same as the last tile.
|
|
*
|
|
* ForegroundSpecified - if set, a pixel value follows which specifies
|
|
* the foreground colour to be used for all subrectangles in this tile.
|
|
* If this bit is set then the SubrectsColoured bit must be zero.
|
|
*
|
|
* AnySubrects - if set, a single byte follows giving the number of
|
|
* subrectangles following. If not set, there are no subrectangles (i.e.
|
|
* the whole tile is just solid background colour).
|
|
*
|
|
* SubrectsColoured - if set then each subrectangle is preceded by a pixel
|
|
* value giving the colour of that subrectangle. If not set, all
|
|
* subrectangles are the same colour, the foreground colour; if the
|
|
* ForegroundSpecified bit wasn't set then the foreground is the same as
|
|
* the last tile.
|
|
*
|
|
* The position and size of each subrectangle is specified in two bytes. The
|
|
* Pack macros below can be used to generate the two bytes from x, y, w, h,
|
|
* and the Extract macros can be used to extract the x, y, w, h values from
|
|
* the two bytes.
|
|
*/
|
|
|
|
#define rfbHextileRaw (1 << 0)
|
|
#define rfbHextileBackgroundSpecified (1 << 1)
|
|
#define rfbHextileForegroundSpecified (1 << 2)
|
|
#define rfbHextileAnySubrects (1 << 3)
|
|
#define rfbHextileSubrectsColoured (1 << 4)
|
|
|
|
#define rfbHextilePackXY(x,y) (((x) << 4) | (y))
|
|
#define rfbHextilePackWH(w,h) ((((w)-1) << 4) | ((h)-1))
|
|
#define rfbHextileExtractX(byte) ((byte) >> 4)
|
|
#define rfbHextileExtractY(byte) ((byte) & 0xf)
|
|
#define rfbHextileExtractW(byte) (((byte) >> 4) + 1)
|
|
#define rfbHextileExtractH(byte) (((byte) & 0xf) + 1)
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* zlib - zlib compressed Encoding. We have an rfbZlibHeader structure
|
|
* giving the number of bytes following. Finally the data follows is
|
|
* zlib compressed version of the raw pixel data as negotiated.
|
|
* (NOTE: also used by Ultra Encoding)
|
|
*/
|
|
|
|
typedef struct {
|
|
uint32_t nBytes;
|
|
} rfbZlibHeader;
|
|
|
|
#define sz_rfbZlibHeader 4
|
|
|
|
#ifdef LIBVNCSERVER_HAVE_LIBZ
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* Tight Encoding.
|
|
*
|
|
*-- The first byte of each Tight-encoded rectangle is a "compression control
|
|
* byte". Its format is as follows (bit 0 is the least significant one):
|
|
*
|
|
* bit 0: if 1, then compression stream 0 should be reset;
|
|
* bit 1: if 1, then compression stream 1 should be reset;
|
|
* bit 2: if 1, then compression stream 2 should be reset;
|
|
* bit 3: if 1, then compression stream 3 should be reset;
|
|
* bits 7-4: if 1000 (0x08), then the compression type is "fill",
|
|
* if 1001 (0x09), then the compression type is "jpeg",
|
|
* if 0xxx, then the compression type is "basic",
|
|
* values greater than 1001 are not valid.
|
|
*
|
|
* If the compression type is "basic", then bits 6..4 of the
|
|
* compression control byte (those xxx in 0xxx) specify the following:
|
|
*
|
|
* bits 5-4: decimal representation is the index of a particular zlib
|
|
* stream which should be used for decompressing the data;
|
|
* bit 6: if 1, then a "filter id" byte is following this byte.
|
|
*
|
|
*-- The data that follows after the compression control byte described
|
|
* above depends on the compression type ("fill", "jpeg" or "basic").
|
|
*
|
|
*-- If the compression type is "fill", then the only pixel value follows, in
|
|
* client pixel format (see NOTE 1). This value applies to all pixels of the
|
|
* rectangle.
|
|
*
|
|
*-- If the compression type is "jpeg", the following data stream looks like
|
|
* this:
|
|
*
|
|
* 1..3 bytes: data size (N) in compact representation;
|
|
* N bytes: JPEG image.
|
|
*
|
|
* Data size is compactly represented in one, two or three bytes, according
|
|
* to the following scheme:
|
|
*
|
|
* 0xxxxxxx (for values 0..127)
|
|
* 1xxxxxxx 0yyyyyyy (for values 128..16383)
|
|
* 1xxxxxxx 1yyyyyyy zzzzzzzz (for values 16384..4194303)
|
|
*
|
|
* Here each character denotes one bit, xxxxxxx are the least significant 7
|
|
* bits of the value (bits 0-6), yyyyyyy are bits 7-13, and zzzzzzzz are the
|
|
* most significant 8 bits (bits 14-21). For example, decimal value 10000
|
|
* should be represented as two bytes: binary 10010000 01001110, or
|
|
* hexadecimal 90 4E.
|
|
*
|
|
*-- If the compression type is "basic" and bit 6 of the compression control
|
|
* byte was set to 1, then the next (second) byte specifies "filter id" which
|
|
* tells the decoder what filter type was used by the encoder to pre-process
|
|
* pixel data before the compression. The "filter id" byte can be one of the
|
|
* following:
|
|
*
|
|
* 0: no filter ("copy" filter);
|
|
* 1: "palette" filter;
|
|
* 2: "gradient" filter.
|
|
*
|
|
*-- If bit 6 of the compression control byte is set to 0 (no "filter id"
|
|
* byte), or if the filter id is 0, then raw pixel values in the client
|
|
* format (see NOTE 1) will be compressed. See below details on the
|
|
* compression.
|
|
*
|
|
*-- The "gradient" filter pre-processes pixel data with a simple algorithm
|
|
* which converts each color component to a difference between a "predicted"
|
|
* intensity and the actual intensity. Such a technique does not affect
|
|
* uncompressed data size, but helps to compress photo-like images better.
|
|
* Pseudo-code for converting intensities to differences is the following:
|
|
*
|
|
* P[i,j] := V[i-1,j] + V[i,j-1] - V[i-1,j-1];
|
|
* if (P[i,j] < 0) then P[i,j] := 0;
|
|
* if (P[i,j] > MAX) then P[i,j] := MAX;
|
|
* D[i,j] := V[i,j] - P[i,j];
|
|
*
|
|
* Here V[i,j] is the intensity of a color component for a pixel at
|
|
* coordinates (i,j). MAX is the maximum value of intensity for a color
|
|
* component.
|
|
*
|
|
*-- The "palette" filter converts true-color pixel data to indexed colors
|
|
* and a palette which can consist of 2..256 colors. If the number of colors
|
|
* is 2, then each pixel is encoded in 1 bit, otherwise 8 bits is used to
|
|
* encode one pixel. 1-bit encoding is performed such way that the most
|
|
* significant bits correspond to the leftmost pixels, and each raw of pixels
|
|
* is aligned to the byte boundary. When "palette" filter is used, the
|
|
* palette is sent before the pixel data. The palette begins with an unsigned
|
|
* byte which value is the number of colors in the palette minus 1 (i.e. 1
|
|
* means 2 colors, 255 means 256 colors in the palette). Then follows the
|
|
* palette itself which consist of pixel values in client pixel format (see
|
|
* NOTE 1).
|
|
*
|
|
*-- The pixel data is compressed using the zlib library. But if the data
|
|
* size after applying the filter but before the compression is less then 12,
|
|
* then the data is sent as is, uncompressed. Four separate zlib streams
|
|
* (0..3) can be used and the decoder should read the actual stream id from
|
|
* the compression control byte (see NOTE 2).
|
|
*
|
|
* If the compression is not used, then the pixel data is sent as is,
|
|
* otherwise the data stream looks like this:
|
|
*
|
|
* 1..3 bytes: data size (N) in compact representation;
|
|
* N bytes: zlib-compressed data.
|
|
*
|
|
* Data size is compactly represented in one, two or three bytes, just like
|
|
* in the "jpeg" compression method (see above).
|
|
*
|
|
*-- NOTE 1. If the color depth is 24, and all three color components are
|
|
* 8-bit wide, then one pixel in Tight encoding is always represented by
|
|
* three bytes, where the first byte is red component, the second byte is
|
|
* green component, and the third byte is blue component of the pixel color
|
|
* value. This applies to colors in palettes as well.
|
|
*
|
|
*-- NOTE 2. The decoder must reset compression streams' states before
|
|
* decoding the rectangle, if some of bits 0,1,2,3 in the compression control
|
|
* byte are set to 1. Note that the decoder must reset zlib streams even if
|
|
* the compression type is "fill" or "jpeg".
|
|
*
|
|
*-- NOTE 3. The "gradient" filter and "jpeg" compression may be used only
|
|
* when bits-per-pixel value is either 16 or 32, not 8.
|
|
*
|
|
*-- NOTE 4. The width of any Tight-encoded rectangle cannot exceed 2048
|
|
* pixels. If a rectangle is wider, it must be split into several rectangles
|
|
* and each one should be encoded separately.
|
|
*
|
|
*/
|
|
|
|
#define rfbTightExplicitFilter 0x04
|
|
#define rfbTightFill 0x08
|
|
#define rfbTightJpeg 0x09
|
|
#define rfbTightMaxSubencoding 0x09
|
|
|
|
/* Filters to improve compression efficiency */
|
|
#define rfbTightFilterCopy 0x00
|
|
#define rfbTightFilterPalette 0x01
|
|
#define rfbTightFilterGradient 0x02
|
|
|
|
#endif
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* XCursor encoding. This is a special encoding used to transmit X-style
|
|
* cursor shapes from server to clients. Note that for this encoding,
|
|
* coordinates in rfbFramebufferUpdateRectHeader structure hold hotspot
|
|
* position (r.x, r.y) and cursor size (r.w, r.h). If (w * h != 0), two RGB
|
|
* samples are sent after header in the rfbXCursorColors structure. They
|
|
* denote foreground and background colors of the cursor. If a client
|
|
* supports only black-and-white cursors, it should ignore these colors and
|
|
* assume that foreground is black and background is white. Next, two bitmaps
|
|
* (1 bits per pixel) follow: first one with actual data (value 0 denotes
|
|
* background color, value 1 denotes foreground color), second one with
|
|
* transparency data (bits with zero value mean that these pixels are
|
|
* transparent). Both bitmaps represent cursor data in a byte stream, from
|
|
* left to right, from top to bottom, and each row is byte-aligned. Most
|
|
* significant bits correspond to leftmost pixels. The number of bytes in
|
|
* each row can be calculated as ((w + 7) / 8). If (w * h == 0), cursor
|
|
* should be hidden (or default local cursor should be set by the client).
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t foreRed;
|
|
uint8_t foreGreen;
|
|
uint8_t foreBlue;
|
|
uint8_t backRed;
|
|
uint8_t backGreen;
|
|
uint8_t backBlue;
|
|
} rfbXCursorColors;
|
|
|
|
#define sz_rfbXCursorColors 6
|
|
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* RichCursor encoding. This is a special encoding used to transmit cursor
|
|
* shapes from server to clients. It is similar to the XCursor encoding but
|
|
* uses client pixel format instead of two RGB colors to represent cursor
|
|
* image. For this encoding, coordinates in rfbFramebufferUpdateRectHeader
|
|
* structure hold hotspot position (r.x, r.y) and cursor size (r.w, r.h).
|
|
* After header, two pixmaps follow: first one with cursor image in current
|
|
* client pixel format (like in raw encoding), second with transparency data
|
|
* (1 bit per pixel, exactly the same format as used for transparency bitmap
|
|
* in the XCursor encoding). If (w * h == 0), cursor should be hidden (or
|
|
* default local cursor should be set by the client).
|
|
*/
|
|
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* ZRLE - encoding combining Zlib compression, tiling, palettisation and
|
|
* run-length encoding.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint32_t length;
|
|
} rfbZRLEHeader;
|
|
|
|
#define sz_rfbZRLEHeader 4
|
|
|
|
#define rfbZRLETileWidth 64
|
|
#define rfbZRLETileHeight 64
|
|
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* ZLIBHEX - zlib compressed Hextile Encoding. Essentially, this is the
|
|
* hextile encoding with zlib compression on the tiles that can not be
|
|
* efficiently encoded with one of the other hextile subencodings. The
|
|
* new zlib subencoding uses two bytes to specify the length of the
|
|
* compressed tile and then the compressed data follows. As with the
|
|
* raw sub-encoding, the zlib subencoding invalidates the other
|
|
* values, if they are also set.
|
|
*/
|
|
|
|
#define rfbHextileZlibRaw (1 << 5)
|
|
#define rfbHextileZlibHex (1 << 6)
|
|
#define rfbHextileZlibMono (1 << 7)
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* SetColourMapEntries - these messages are only sent if the pixel
|
|
* format uses a "colour map" (i.e. trueColour false) and the client has not
|
|
* fixed the entire colour map using FixColourMapEntries. In addition they
|
|
* will only start being sent after the client has sent its first
|
|
* FramebufferUpdateRequest. So if the client always tells the server to use
|
|
* trueColour then it never needs to process this type of message.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbSetColourMapEntries */
|
|
uint8_t pad;
|
|
uint16_t firstColour;
|
|
uint16_t nColours;
|
|
|
|
/* Followed by nColours * 3 * uint16_t
|
|
r1, g1, b1, r2, g2, b2, r3, g3, b3, ..., rn, bn, gn */
|
|
|
|
} rfbSetColourMapEntriesMsg;
|
|
|
|
#define sz_rfbSetColourMapEntriesMsg 6
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Bell - ring a bell on the client if it has one.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbBell */
|
|
} rfbBellMsg;
|
|
|
|
#define sz_rfbBellMsg 1
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* ServerCutText - the server has new text in its cut buffer.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbServerCutText */
|
|
uint8_t pad1;
|
|
uint16_t pad2;
|
|
uint32_t length;
|
|
/* followed by char text[length] */
|
|
} rfbServerCutTextMsg;
|
|
|
|
#define sz_rfbServerCutTextMsg 8
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* // Modif sf@2002
|
|
* FileTransferMsg - The client sends FileTransfer message.
|
|
* Bidirectional message - Files can be sent from client to server & vice versa
|
|
*/
|
|
|
|
typedef struct _rfbFileTransferMsg {
|
|
uint8_t type; /* always rfbFileTransfer */
|
|
uint8_t contentType; /* See defines below */
|
|
uint8_t contentParam;/* Other possible content classification (Dir or File name, etc..) */
|
|
uint8_t pad; /* It appears that UltraVNC *forgot* to Swap16IfLE(contentParam) */
|
|
uint32_t size; /* FileSize or packet index or error or other */
|
|
/* uint32_t sizeH; Additional 32Bits params to handle big values. Only for V2 (we want backward compatibility between all V1 versions) */
|
|
uint32_t length;
|
|
/* followed by data char text[length] */
|
|
} rfbFileTransferMsg;
|
|
|
|
#define sz_rfbFileTransferMsg 12
|
|
|
|
#define rfbFileTransferVersion 2 /* v1 is the old FT version ( <= 1.0.0 RC18 versions) */
|
|
|
|
/* FileTransfer Content types and Params defines */
|
|
#define rfbDirContentRequest 1 /* Client asks for the content of a given Server directory */
|
|
#define rfbDirPacket 2 /* Full directory name or full file name. */
|
|
/* Null content means end of Directory */
|
|
#define rfbFileTransferRequest 3 /* Client asks the server for the transfer of a given file */
|
|
#define rfbFileHeader 4 /* First packet of a file transfer, containing file's features */
|
|
#define rfbFilePacket 5 /* One chunk of the file */
|
|
#define rfbEndOfFile 6 /* End of file transfer (the file has been received or error) */
|
|
#define rfbAbortFileTransfer 7 /* The file transfer must be aborted, whatever the state */
|
|
#define rfbFileTransferOffer 8 /* The client offers to send a file to the server */
|
|
#define rfbFileAcceptHeader 9 /* The server accepts or rejects the file */
|
|
#define rfbCommand 10 /* The Client sends a simple command (File Delete, Dir create etc...) */
|
|
#define rfbCommandReturn 11 /* The Client receives the server's answer about a simple command */
|
|
#define rfbFileChecksums 12 /* The zipped checksums of the destination file (Delta Transfer) */
|
|
#define rfbFileTransferAccess 14 /* Request FileTransfer authorization */
|
|
|
|
/* rfbDirContentRequest client Request - content params */
|
|
#define rfbRDirContent 1 /* Request a Server Directory contents */
|
|
#define rfbRDrivesList 2 /* Request the server's drives list */
|
|
#define rfbRDirRecursiveList 3 /* Request a server directory content recursive sorted list */
|
|
#define rfbRDirRecursiveSize 4 /* Request a server directory content recursive size */
|
|
|
|
/* rfbDirPacket & rfbCommandReturn server Answer - content params */
|
|
#define rfbADirectory 1 /* Reception of a directory name */
|
|
#define rfbAFile 2 /* Reception of a file name */
|
|
#define rfbADrivesList 3 /* Reception of a list of drives */
|
|
#define rfbADirCreate 4 /* Response to a create dir command */
|
|
#define rfbADirDelete 5 /* Response to a delete dir command */
|
|
#define rfbAFileCreate 6 /* Response to a create file command */
|
|
#define rfbAFileDelete 7 /* Response to a delete file command */
|
|
#define rfbAFileRename 8 /* Response to a rename file command */
|
|
#define rfbADirRename 9 /* Response to a rename dir command */
|
|
#define rfbADirRecursiveListItem 10
|
|
#define rfbADirRecursiveSize 11
|
|
|
|
/* rfbCommand Command - content params */
|
|
#define rfbCDirCreate 1 /* Request the server to create the given directory */
|
|
#define rfbCDirDelete 2 /* Request the server to delete the given directory */
|
|
#define rfbCFileCreate 3 /* Request the server to create the given file */
|
|
#define rfbCFileDelete 4 /* Request the server to delete the given file */
|
|
#define rfbCFileRename 5 /* Request the server to rename the given file */
|
|
#define rfbCDirRename 6 /* Request the server to rename the given directory */
|
|
|
|
/* Errors - content params or "size" field */
|
|
#define rfbRErrorUnknownCmd 1 /* Unknown FileTransfer command. */
|
|
#define rfbRErrorCmd 0xFFFFFFFF/* Error when a command fails on remote side (ret in "size" field) */
|
|
|
|
#define sz_rfbBlockSize 8192 /* Size of a File Transfer packet (before compression) */
|
|
#define rfbZipDirectoryPrefix "!UVNCDIR-\0" /* Transfered directory are zipped in a file with this prefix. Must end with "-" */
|
|
#define sz_rfbZipDirectoryPrefix 9
|
|
#define rfbDirPrefix "[ "
|
|
#define rfbDirSuffix " ]"
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Modif sf@2002
|
|
* TextChatMsg - Utilized to order the TextChat mode on server or client
|
|
* Bidirectional message
|
|
*/
|
|
|
|
typedef struct _rfbTextChatMsg {
|
|
uint8_t type; /* always rfbTextChat */
|
|
uint8_t pad1; /* Could be used later as an additionnal param */
|
|
uint16_t pad2; /* Could be used later as text offset, for instance */
|
|
uint32_t length; /* Specific values for Open, close, finished (-1, -2, -3) */
|
|
/* followed by char text[length] */
|
|
} rfbTextChatMsg;
|
|
|
|
#define sz_rfbTextChatMsg 8
|
|
|
|
#define rfbTextMaxSize 4096
|
|
#define rfbTextChatOpen 0xFFFFFFFF
|
|
#define rfbTextChatClose 0xFFFFFFFE
|
|
#define rfbTextChatFinished 0xFFFFFFFD
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Xvp Message
|
|
* Bidirectional message
|
|
* A server which supports the xvp extension declares this by sending a message
|
|
* with an Xvp_INIT xvp-message-code when it receives a request from the client
|
|
* to use the xvp Pseudo-encoding. The server must specify in this message the
|
|
* highest xvp-extension-version it supports: the client may assume that the
|
|
* server supports all versions from 1 up to this value. The client is then
|
|
* free to use any supported version. Currently, only version 1 is defined.
|
|
*
|
|
* A server which subsequently receives an xvp Client Message requesting an
|
|
* operation which it is unable to perform, informs the client of this by
|
|
* sending a message with an Xvp_FAIL xvp-message-code, and the same
|
|
* xvp-extension-version as included in the client's operation request.
|
|
*
|
|
* A client supporting the xvp extension sends this to request that the server
|
|
* initiate a clean shutdown, clean reboot or abrupt reset of the system whose
|
|
* framebuffer the client is displaying.
|
|
*/
|
|
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbXvp */
|
|
uint8_t pad;
|
|
uint8_t version; /* xvp extension version */
|
|
uint8_t code; /* xvp message code */
|
|
} rfbXvpMsg;
|
|
|
|
#define sz_rfbXvpMsg (4)
|
|
|
|
/* server message codes */
|
|
#define rfbXvp_Fail 0
|
|
#define rfbXvp_Init 1
|
|
/* client message codes */
|
|
#define rfbXvp_Shutdown 2
|
|
#define rfbXvp_Reboot 3
|
|
#define rfbXvp_Reset 4
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Modif sf@2002
|
|
* ResizeFrameBuffer - The Client must change the size of its framebuffer
|
|
*/
|
|
|
|
typedef struct _rfbResizeFrameBufferMsg {
|
|
uint8_t type; /* always rfbResizeFrameBuffer */
|
|
uint8_t pad1;
|
|
uint16_t framebufferWidth; /* FrameBuffer width */
|
|
uint16_t framebufferHeigth; /* FrameBuffer height */
|
|
} rfbResizeFrameBufferMsg;
|
|
|
|
#define sz_rfbResizeFrameBufferMsg 6
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Copyright (C) 2001 Harakan Software
|
|
* PalmVNC 1.4 & 2.? ResizeFrameBuffer message
|
|
* ReSizeFrameBuffer - tell the RFB client to alter its framebuffer, either
|
|
* due to a resize of the server desktop or a client-requested scaling factor.
|
|
* The pixel format remains unchanged.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbReSizeFrameBuffer */
|
|
uint8_t pad1;
|
|
uint16_t desktop_w; /* Desktop width */
|
|
uint16_t desktop_h; /* Desktop height */
|
|
uint16_t buffer_w; /* FrameBuffer width */
|
|
uint16_t buffer_h; /* Framebuffer height */
|
|
uint16_t pad2;
|
|
|
|
} rfbPalmVNCReSizeFrameBufferMsg;
|
|
|
|
#define sz_rfbPalmVNCReSizeFrameBufferMsg (12)
|
|
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Union of all server->client messages.
|
|
*/
|
|
|
|
typedef union {
|
|
uint8_t type;
|
|
rfbFramebufferUpdateMsg fu;
|
|
rfbSetColourMapEntriesMsg scme;
|
|
rfbBellMsg b;
|
|
rfbServerCutTextMsg sct;
|
|
rfbResizeFrameBufferMsg rsfb;
|
|
rfbPalmVNCReSizeFrameBufferMsg prsfb;
|
|
rfbFileTransferMsg ft;
|
|
rfbTextChatMsg tc;
|
|
rfbXvpMsg xvp;
|
|
} rfbServerToClientMsg;
|
|
|
|
|
|
|
|
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
* RDV Cache Encoding.
|
|
* special is not used at this point, can be used to reset cache or other specials
|
|
* just put it to make sure we don't have to change the encoding again.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint16_t special;
|
|
} rfbCacheRect;
|
|
|
|
#define sz_rfbCacheRect 2
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* Message definitions (client -> server)
|
|
*
|
|
*****************************************************************************/
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* SetPixelFormat - tell the RFB server the format in which the client wants
|
|
* pixels sent.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbSetPixelFormat */
|
|
uint8_t pad1;
|
|
uint16_t pad2;
|
|
rfbPixelFormat format;
|
|
} rfbSetPixelFormatMsg;
|
|
|
|
#define sz_rfbSetPixelFormatMsg (sz_rfbPixelFormat + 4)
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* FixColourMapEntries - when the pixel format uses a "colour map", fix
|
|
* read-only colour map entries.
|
|
*
|
|
* ***************** NOT CURRENTLY SUPPORTED *****************
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbFixColourMapEntries */
|
|
uint8_t pad;
|
|
uint16_t firstColour;
|
|
uint16_t nColours;
|
|
|
|
/* Followed by nColours * 3 * uint16_t
|
|
r1, g1, b1, r2, g2, b2, r3, g3, b3, ..., rn, bn, gn */
|
|
|
|
} rfbFixColourMapEntriesMsg;
|
|
|
|
#define sz_rfbFixColourMapEntriesMsg 6
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* SetEncodings - tell the RFB server which encoding types we accept. Put them
|
|
* in order of preference, if we have any. We may always receive raw
|
|
* encoding, even if we don't specify it here.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbSetEncodings */
|
|
uint8_t pad;
|
|
uint16_t nEncodings;
|
|
/* followed by nEncodings * uint32_t encoding types */
|
|
} rfbSetEncodingsMsg;
|
|
|
|
#define sz_rfbSetEncodingsMsg 4
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* FramebufferUpdateRequest - request for a framebuffer update. If incremental
|
|
* is true then the client just wants the changes since the last update. If
|
|
* false then it wants the whole of the specified rectangle.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbFramebufferUpdateRequest */
|
|
uint8_t incremental;
|
|
uint16_t x;
|
|
uint16_t y;
|
|
uint16_t w;
|
|
uint16_t h;
|
|
} rfbFramebufferUpdateRequestMsg;
|
|
|
|
#define sz_rfbFramebufferUpdateRequestMsg 10
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* KeyEvent - key press or release
|
|
*
|
|
* Keys are specified using the "keysym" values defined by the X Window System.
|
|
* For most ordinary keys, the keysym is the same as the corresponding ASCII
|
|
* value. Other common keys are:
|
|
*
|
|
* BackSpace 0xff08
|
|
* Tab 0xff09
|
|
* Return or Enter 0xff0d
|
|
* Escape 0xff1b
|
|
* Insert 0xff63
|
|
* Delete 0xffff
|
|
* Home 0xff50
|
|
* End 0xff57
|
|
* Page Up 0xff55
|
|
* Page Down 0xff56
|
|
* Left 0xff51
|
|
* Up 0xff52
|
|
* Right 0xff53
|
|
* Down 0xff54
|
|
* F1 0xffbe
|
|
* F2 0xffbf
|
|
* ... ...
|
|
* F12 0xffc9
|
|
* Shift 0xffe1
|
|
* Control 0xffe3
|
|
* Meta 0xffe7
|
|
* Alt 0xffe9
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbKeyEvent */
|
|
uint8_t down; /* true if down (press), false if up */
|
|
uint16_t pad;
|
|
uint32_t key; /* key is specified as an X keysym */
|
|
} rfbKeyEventMsg;
|
|
|
|
#define sz_rfbKeyEventMsg 8
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* PointerEvent - mouse/pen move and/or button press.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbPointerEvent */
|
|
uint8_t buttonMask; /* bits 0-7 are buttons 1-8, 0=up, 1=down */
|
|
uint16_t x;
|
|
uint16_t y;
|
|
} rfbPointerEventMsg;
|
|
|
|
#define rfbButton1Mask 1
|
|
#define rfbButton2Mask 2
|
|
#define rfbButton3Mask 4
|
|
#define rfbButton4Mask 8
|
|
#define rfbButton5Mask 16
|
|
/* RealVNC 335 method */
|
|
#define rfbWheelUpMask rfbButton4Mask
|
|
#define rfbWheelDownMask rfbButton5Mask
|
|
|
|
#define sz_rfbPointerEventMsg 6
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* ClientCutText - the client has new text in its cut buffer.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint8_t type; /* always rfbClientCutText */
|
|
uint8_t pad1;
|
|
uint16_t pad2;
|
|
uint32_t length;
|
|
/* followed by char text[length] */
|
|
} rfbClientCutTextMsg;
|
|
|
|
#define sz_rfbClientCutTextMsg 8
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* sf@2002 - Set Server Scale
|
|
* SetServerScale - Server must change the scale of the client buffer.
|
|
*/
|
|
|
|
typedef struct _rfbSetScaleMsg {
|
|
uint8_t type; /* always rfbSetScale */
|
|
uint8_t scale; /* Scale value 1<sv<n */
|
|
uint16_t pad;
|
|
} rfbSetScaleMsg;
|
|
|
|
#define sz_rfbSetScaleMsg 4
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Copyright (C) 2001 Harakan Software
|
|
* PalmVNC 1.4 & 2.? SetScale Factor message
|
|
* SetScaleFactor - tell the RFB server to alter the scale factor for the
|
|
* client buffer.
|
|
*/
|
|
typedef struct {
|
|
uint8_t type; /* always rfbPalmVNCSetScaleFactor */
|
|
|
|
uint8_t scale; /* Scale factor (positive non-zero integer) */
|
|
uint16_t pad2;
|
|
} rfbPalmVNCSetScaleFactorMsg;
|
|
|
|
#define sz_rfbPalmVNCSetScaleFactorMsg (4)
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* rdv@2002 - Set input status
|
|
* SetServerInput - Server input is dis/enabled
|
|
*/
|
|
|
|
typedef struct _rfbSetServerInputMsg {
|
|
uint8_t type; /* always rfbSetScale */
|
|
uint8_t status; /* Scale value 1<sv<n */
|
|
uint16_t pad;
|
|
} rfbSetServerInputMsg;
|
|
|
|
#define sz_rfbSetServerInputMsg 4
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* rdv@2002 - Set SW
|
|
* SetSW - Server SW/full desktop
|
|
*/
|
|
|
|
typedef struct _rfbSetSWMsg {
|
|
uint8_t type; /* always rfbSetSW */
|
|
uint8_t status;
|
|
uint16_t x;
|
|
uint16_t y;
|
|
} rfbSetSWMsg;
|
|
|
|
#define sz_rfbSetSWMsg 6
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Union of all client->server messages.
|
|
*/
|
|
|
|
typedef union {
|
|
uint8_t type;
|
|
rfbSetPixelFormatMsg spf;
|
|
rfbFixColourMapEntriesMsg fcme;
|
|
rfbSetEncodingsMsg se;
|
|
rfbFramebufferUpdateRequestMsg fur;
|
|
rfbKeyEventMsg ke;
|
|
rfbPointerEventMsg pe;
|
|
rfbClientCutTextMsg cct;
|
|
rfbSetScaleMsg ssc;
|
|
rfbPalmVNCSetScaleFactorMsg pssf;
|
|
rfbSetServerInputMsg sim;
|
|
rfbFileTransferMsg ft;
|
|
rfbSetSWMsg sw;
|
|
rfbTextChatMsg tc;
|
|
rfbXvpMsg xvp;
|
|
} rfbClientToServerMsg;
|
|
|
|
/*
|
|
* vncauth.h - describes the functions provided by the vncauth library.
|
|
*/
|
|
|
|
#define MAXPWLEN 8
|
|
#define CHALLENGESIZE 16
|
|
|
|
extern int rfbEncryptAndStorePasswd(char *passwd, char *fname);
|
|
extern char *rfbDecryptPasswdFromFile(char *fname);
|
|
extern void rfbRandomBytes(unsigned char *bytes);
|
|
extern void rfbEncryptBytes(unsigned char *bytes, char *passwd);
|
|
|
|
|
|
#endif
|