[qemu.git] / ui / vnc.h

/*
 * QEMU VNC display driver
 *
 * Copyright (C) 2006 Anthony Liguori <[email protected]>
 * Copyright (C) 2006 Fabrice Bellard
 * Copyright (C) 2009 Red Hat, Inc
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#ifndef __QEMU_VNC_H
#define __QEMU_VNC_H

#include "qemu-common.h"
#include "qemu-queue.h"
#ifdef CONFIG_VNC_THREAD
#include "qemu-thread.h"
#endif
#include "console.h"
#include "monitor.h"
#include "audio/audio.h"
#include <zlib.h>
#include <stdbool.h>

#include "keymaps.h"

// #define _VNC_DEBUG 1

#ifdef _VNC_DEBUG
#define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
#else
#define VNC_DEBUG(fmt, ...) do { } while (0)
#endif

/*****************************************************************************
 *
 * Core data structures
 *
 *****************************************************************************/

typedef struct Buffer
{
    size_t capacity;
    size_t offset;
    uint8_t *buffer;
} Buffer;

typedef struct VncState VncState;
typedef struct VncJob VncJob;
typedef struct VncRect VncRect;
typedef struct VncRectEntry VncRectEntry;

typedef int VncReadEvent(VncState *vs, uint8_t *data, size_t len);

typedef void VncWritePixels(VncState *vs, struct PixelFormat *pf, void *data, int size);

typedef void VncSendHextileTile(VncState *vs,
                                int x, int y, int w, int h,
                                void *last_bg,
                                void *last_fg,
                                int *has_bg, int *has_fg);

#define VNC_MAX_WIDTH 2560
#define VNC_MAX_HEIGHT 2048
#define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * 32))

#define VNC_AUTH_CHALLENGE_SIZE 16

typedef struct VncDisplay VncDisplay;

#ifdef CONFIG_VNC_TLS
#include "vnc-tls.h"
#include "vnc-auth-vencrypt.h"
#endif
#ifdef CONFIG_VNC_SASL
#include "vnc-auth-sasl.h"
#endif

struct VncSurface
{
    uint32_t dirty[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS];
    DisplaySurface *ds;
};

struct VncDisplay
{
    QTAILQ_HEAD(, VncState) clients;
    QEMUTimer *timer;
    int timer_interval;
    int lsock;
    DisplayState *ds;
    kbd_layout_t *kbd_layout;
    int lock_key_sync;
#ifdef CONFIG_VNC_THREAD
    QemuMutex mutex;
#endif

    QEMUCursor *cursor;
    int cursor_msize;
    uint8_t *cursor_mask;

    struct VncSurface guest;   /* guest visible surface (aka ds->surface) */
    DisplaySurface *server;  /* vnc server surface */

    char *display;
    char *password;
    int auth;
    bool lossy;
#ifdef CONFIG_VNC_TLS
    int subauth; /* Used by VeNCrypt */
    VncDisplayTLS tls;
#endif
#ifdef CONFIG_VNC_SASL
    VncDisplaySASL sasl;
#endif
};

typedef struct VncTight {
    int type;
    uint8_t quality;
    uint8_t compression;
    uint8_t pixel24;
    Buffer tight;
    Buffer tmp;
    Buffer zlib;
    Buffer gradient;
#ifdef CONFIG_VNC_JPEG
    Buffer jpeg;
#endif
#ifdef CONFIG_VNC_PNG
    Buffer png;
#endif
    int levels[4];
    z_stream stream[4];
} VncTight;

typedef struct VncHextile {
    VncSendHextileTile *send_tile;
} VncHextile;

typedef struct VncZlib {
    Buffer zlib;
    Buffer tmp;
    z_stream stream;
    int level;
} VncZlib;

#ifdef CONFIG_VNC_THREAD
struct VncRect
{
    int x;
    int y;
    int w;
    int h;
};

struct VncRectEntry
{
    struct VncRect rect;
    QLIST_ENTRY(VncRectEntry) next;
};

struct VncJob
{
    VncState *vs;

    QLIST_HEAD(, VncRectEntry) rectangles;
    QTAILQ_ENTRY(VncJob) next;
};
#else
struct VncJob
{
    VncState *vs;
    int rectangles;
    size_t saved_offset;
};
#endif

struct VncState
{
    int csock;

    DisplayState *ds;
    uint32_t dirty[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS];

    VncDisplay *vd;
    int need_update;
    int force_update;
    uint32_t features;
    int absolute;
    int last_x;
    int last_y;
    int client_width;
    int client_height;

    uint32_t vnc_encoding;

    int major;
    int minor;

    char challenge[VNC_AUTH_CHALLENGE_SIZE];
#ifdef CONFIG_VNC_TLS
    VncStateTLS tls;
#endif
#ifdef CONFIG_VNC_SASL
    VncStateSASL sasl;
#endif

    QObject *info;

    Buffer output;
    Buffer input;
    /* current output mode information */
    VncWritePixels *write_pixels;
    DisplaySurface clientds;

    CaptureVoiceOut *audio_cap;
    struct audsettings as;

    VncReadEvent *read_handler;
    size_t read_handler_expect;
    /* input */
    uint8_t modifiers_state[256];
    QEMUPutLEDEntry *led;

    bool abort;
#ifndef CONFIG_VNC_THREAD
    VncJob job;
#else
    QemuMutex output_mutex;
#endif

    /* Encoding specific, if you add something here, don't forget to
     *  update vnc_async_encoding_start()
     */
    VncTight tight;
    VncZlib zlib;
    VncHextile hextile;


    Notifier mouse_mode_notifier;

    QTAILQ_ENTRY(VncState) next;
};


/*****************************************************************************
 *
 * Authentication modes
 *
 *****************************************************************************/

enum {
    VNC_AUTH_INVALID = 0,
    VNC_AUTH_NONE = 1,
    VNC_AUTH_VNC = 2,
    VNC_AUTH_RA2 = 5,
    VNC_AUTH_RA2NE = 6,
    VNC_AUTH_TIGHT = 16,
    VNC_AUTH_ULTRA = 17,
    VNC_AUTH_TLS = 18,      /* Supported in GTK-VNC & VINO */
    VNC_AUTH_VENCRYPT = 19, /* Supported in GTK-VNC & VeNCrypt */
    VNC_AUTH_SASL = 20,     /* Supported in GTK-VNC & VINO */
};

enum {
    VNC_AUTH_VENCRYPT_PLAIN = 256,
    VNC_AUTH_VENCRYPT_TLSNONE = 257,
    VNC_AUTH_VENCRYPT_TLSVNC = 258,
    VNC_AUTH_VENCRYPT_TLSPLAIN = 259,
    VNC_AUTH_VENCRYPT_X509NONE = 260,
    VNC_AUTH_VENCRYPT_X509VNC = 261,
    VNC_AUTH_VENCRYPT_X509PLAIN = 262,
    VNC_AUTH_VENCRYPT_X509SASL = 263,
    VNC_AUTH_VENCRYPT_TLSSASL = 264,
};


/*****************************************************************************
 *
 * Encoding types
 *
 *****************************************************************************/

#define VNC_ENCODING_RAW                  0x00000000
#define VNC_ENCODING_COPYRECT             0x00000001
#define VNC_ENCODING_RRE                  0x00000002
#define VNC_ENCODING_CORRE                0x00000004
#define VNC_ENCODING_HEXTILE              0x00000005
#define VNC_ENCODING_ZLIB                 0x00000006
#define VNC_ENCODING_TIGHT                0x00000007
#define VNC_ENCODING_ZLIBHEX              0x00000008
#define VNC_ENCODING_TRLE                 0x0000000f
#define VNC_ENCODING_ZRLE                 0x00000010
#define VNC_ENCODING_ZYWRLE               0x00000011
#define VNC_ENCODING_COMPRESSLEVEL0       0xFFFFFF00 /* -256 */
#define VNC_ENCODING_QUALITYLEVEL0        0xFFFFFFE0 /* -32  */
#define VNC_ENCODING_XCURSOR              0xFFFFFF10 /* -240 */
#define VNC_ENCODING_RICH_CURSOR          0xFFFFFF11 /* -239 */
#define VNC_ENCODING_POINTER_POS          0xFFFFFF18 /* -232 */
#define VNC_ENCODING_LASTRECT             0xFFFFFF20 /* -224 */
#define VNC_ENCODING_DESKTOPRESIZE        0xFFFFFF21 /* -223 */
#define VNC_ENCODING_POINTER_TYPE_CHANGE  0XFFFFFEFF /* -257 */
#define VNC_ENCODING_EXT_KEY_EVENT        0XFFFFFEFE /* -258 */
#define VNC_ENCODING_AUDIO                0XFFFFFEFD /* -259 */
#define VNC_ENCODING_TIGHT_PNG            0xFFFFFEFC /* -260 */
#define VNC_ENCODING_WMVi                 0x574D5669

/*****************************************************************************
 *
 * Other tight constants
 *
 *****************************************************************************/

/*
 * Vendors known by TightVNC: standard VNC/RealVNC, TridiaVNC, and TightVNC.
 */

#define VNC_TIGHT_CCB_RESET_MASK   (0x0f)
#define VNC_TIGHT_CCB_TYPE_MASK    (0x0f << 4)
#define VNC_TIGHT_CCB_TYPE_FILL    (0x08 << 4)
#define VNC_TIGHT_CCB_TYPE_JPEG    (0x09 << 4)
#define VNC_TIGHT_CCB_TYPE_PNG     (0x0A << 4)
#define VNC_TIGHT_CCB_BASIC_MAX    (0x07 << 4)
#define VNC_TIGHT_CCB_BASIC_ZLIB   (0x03 << 4)
#define VNC_TIGHT_CCB_BASIC_FILTER (0x04 << 4)

/*****************************************************************************
 *
 * Features
 *
 *****************************************************************************/

#define VNC_FEATURE_RESIZE                   0
#define VNC_FEATURE_HEXTILE                  1
#define VNC_FEATURE_POINTER_TYPE_CHANGE      2
#define VNC_FEATURE_WMVI                     3
#define VNC_FEATURE_TIGHT                    4
#define VNC_FEATURE_ZLIB                     5
#define VNC_FEATURE_COPYRECT                 6
#define VNC_FEATURE_RICH_CURSOR              7
#define VNC_FEATURE_TIGHT_PNG                8

#define VNC_FEATURE_RESIZE_MASK              (1 << VNC_FEATURE_RESIZE)
#define VNC_FEATURE_HEXTILE_MASK             (1 << VNC_FEATURE_HEXTILE)
#define VNC_FEATURE_POINTER_TYPE_CHANGE_MASK (1 << VNC_FEATURE_POINTER_TYPE_CHANGE)
#define VNC_FEATURE_WMVI_MASK                (1 << VNC_FEATURE_WMVI)
#define VNC_FEATURE_TIGHT_MASK               (1 << VNC_FEATURE_TIGHT)
#define VNC_FEATURE_ZLIB_MASK                (1 << VNC_FEATURE_ZLIB)
#define VNC_FEATURE_COPYRECT_MASK            (1 << VNC_FEATURE_COPYRECT)
#define VNC_FEATURE_RICH_CURSOR_MASK         (1 << VNC_FEATURE_RICH_CURSOR)
#define VNC_FEATURE_TIGHT_PNG_MASK           (1 << VNC_FEATURE_TIGHT_PNG)


/* Client -> Server message IDs */
#define VNC_MSG_CLIENT_SET_PIXEL_FORMAT           0
#define VNC_MSG_CLIENT_SET_ENCODINGS              2
#define VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST 3
#define VNC_MSG_CLIENT_KEY_EVENT                  4
#define VNC_MSG_CLIENT_POINTER_EVENT              5
#define VNC_MSG_CLIENT_CUT_TEXT                   6
#define VNC_MSG_CLIENT_VMWARE_0                   127
#define VNC_MSG_CLIENT_CALL_CONTROL               249
#define VNC_MSG_CLIENT_XVP                        250
#define VNC_MSG_CLIENT_SET_DESKTOP_SIZE           251
#define VNC_MSG_CLIENT_TIGHT                      252
#define VNC_MSG_CLIENT_GII                        253
#define VNC_MSG_CLIENT_VMWARE_1                   254
#define VNC_MSG_CLIENT_QEMU                       255

/* Server -> Client message IDs */
#define VNC_MSG_SERVER_FRAMEBUFFER_UPDATE         0
#define VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES     1
#define VNC_MSG_SERVER_BELL                       2
#define VNC_MSG_SERVER_CUT_TEXT                   3
#define VNC_MSG_SERVER_VMWARE_0                   127
#define VNC_MSG_SERVER_CALL_CONTROL               249
#define VNC_MSG_SERVER_XVP                        250
#define VNC_MSG_SERVER_TIGHT                      252
#define VNC_MSG_SERVER_GII                        253
#define VNC_MSG_SERVER_VMWARE_1                   254
#define VNC_MSG_SERVER_QEMU                       255


/* QEMU client -> server message IDs */
#define VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT         0
#define VNC_MSG_CLIENT_QEMU_AUDIO                 1

/* QEMU server -> client message IDs */
#define VNC_MSG_SERVER_QEMU_AUDIO                 1


/* QEMU client -> server audio message IDs */
#define VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE          0
#define VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE         1
#define VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT      2

/* QEMU server -> client audio message IDs */
#define VNC_MSG_SERVER_QEMU_AUDIO_END             0
#define VNC_MSG_SERVER_QEMU_AUDIO_BEGIN           1
#define VNC_MSG_SERVER_QEMU_AUDIO_DATA            2


/*****************************************************************************
 *
 * Internal APIs
 *
 *****************************************************************************/

/* Event loop functions */
void vnc_client_read(void *opaque);
void vnc_client_write(void *opaque);

long vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen);
long vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen);

/* Protocol I/O functions */
void vnc_write(VncState *vs, const void *data, size_t len);
void vnc_write_u32(VncState *vs, uint32_t value);
void vnc_write_s32(VncState *vs, int32_t value);
void vnc_write_u16(VncState *vs, uint16_t value);
void vnc_write_u8(VncState *vs, uint8_t value);
void vnc_flush(VncState *vs);
void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting);


/* Buffer I/O functions */
uint8_t read_u8(uint8_t *data, size_t offset);
uint16_t read_u16(uint8_t *data, size_t offset);
int32_t read_s32(uint8_t *data, size_t offset);
uint32_t read_u32(uint8_t *data, size_t offset);

/* Protocol stage functions */
void vnc_client_error(VncState *vs);
int vnc_client_io_error(VncState *vs, int ret, int last_errno);

void start_client_init(VncState *vs);
void start_auth_vnc(VncState *vs);

/* Buffer management */
void buffer_reserve(Buffer *buffer, size_t len);
int buffer_empty(Buffer *buffer);
uint8_t *buffer_end(Buffer *buffer);
void buffer_reset(Buffer *buffer);
void buffer_free(Buffer *buffer);
void buffer_append(Buffer *buffer, const void *data, size_t len);


/* Misc helpers */

char *vnc_socket_local_addr(const char *format, int fd);
char *vnc_socket_remote_addr(const char *format, int fd);

static inline uint32_t vnc_has_feature(VncState *vs, int feature) {
    return (vs->features & (1 << feature));
}

/* Framebuffer */
void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
                            int32_t encoding);

void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v);

/* Encodings */
int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);

int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);

int vnc_hextile_send_framebuffer_update(VncState *vs, int x,
                                         int y, int w, int h);
void vnc_hextile_set_pixel_conversion(VncState *vs, int generic);

void *vnc_zlib_zalloc(void *x, unsigned items, unsigned size);
void vnc_zlib_zfree(void *x, void *addr);
int vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
void vnc_zlib_clear(VncState *vs);

int vnc_tight_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
int vnc_tight_png_send_framebuffer_update(VncState *vs, int x, int y,
                                          int w, int h);
void vnc_tight_clear(VncState *vs);

#endif /* __QEMU_VNC_H */
Commit	Line	Data
19a490bf AL	1	/*
	2	* QEMU VNC display driver
	3	*
	4	* Copyright (C) 2006 Anthony Liguori <[email protected]>
	5	* Copyright (C) 2006 Fabrice Bellard
	6	* Copyright (C) 2009 Red Hat, Inc
	7	*
	8	* Permission is hereby granted, free of charge, to any person obtaining a copy
	9	* of this software and associated documentation files (the "Software"), to deal
	10	* in the Software without restriction, including without limitation the rights
	11	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	12	* copies of the Software, and to permit persons to whom the Software is
	13	* furnished to do so, subject to the following conditions:
	14	*
	15	* The above copyright notice and this permission notice shall be included in
	16	* all copies or substantial portions of the Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	20	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	21	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	22	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	23	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	24	* THE SOFTWARE.
	25	*/
	26
	27	#ifndef __QEMU_VNC_H
	28	#define __QEMU_VNC_H
	29
	30	#include "qemu-common.h"
41b4bef6	31	#include "qemu-queue.h"
bd023f95 CC	32	#ifdef CONFIG_VNC_THREAD
	33	#include "qemu-thread.h"
	34	#endif
19a490bf AL	35	#include "console.h"
	36	#include "monitor.h"
	37	#include "audio/audio.h"
	38	#include <zlib.h>
6f9c78c1	39	#include <stdbool.h>
19a490bf	40
19a490bf AL	41	#include "keymaps.h"
19a490bf AL	42
5fb6c7a8 AL	43	// #define _VNC_DEBUG 1
	44
	45	#ifdef _VNC_DEBUG
	46	#define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
	47	#else
	48	#define VNC_DEBUG(fmt, ...) do { } while (0)
	49	#endif
	50
19a490bf AL	51	/*****************************************************************************
	52	*
	53	* Core data structures
	54	*
	55	*****************************************************************************/
	56
	57	typedef struct Buffer
	58	{
	59	size_t capacity;
	60	size_t offset;
	61	uint8_t *buffer;
	62	} Buffer;
	63
	64	typedef struct VncState VncState;
bd023f95 CC	65	typedef struct VncJob VncJob;
	66	typedef struct VncRect VncRect;
	67	typedef struct VncRectEntry VncRectEntry;
19a490bf AL	68
	69	typedef int VncReadEvent(VncState vs, uint8_t data, size_t len);
	70
d467b679	71	typedef void VncWritePixels(VncState vs, struct PixelFormat pf, void *data, int size);
19a490bf AL	72
	73	typedef void VncSendHextileTile(VncState *vs,
	74	int x, int y, int w, int h,
	75	void *last_bg,
	76	void *last_fg,
	77	int has_bg, int has_fg);
	78
3f54bfbf	79	#define VNC_MAX_WIDTH 2560
19a490bf AL	80	#define VNC_MAX_HEIGHT 2048
	81	#define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * 32))
	82
	83	#define VNC_AUTH_CHALLENGE_SIZE 16
	84
	85	typedef struct VncDisplay VncDisplay;
	86
5fb6c7a8 AL	87	#ifdef CONFIG_VNC_TLS
	88	#include "vnc-tls.h"
	89	#include "vnc-auth-vencrypt.h"
	90	#endif
2f9606b3 AL	91	#ifdef CONFIG_VNC_SASL
	92	#include "vnc-auth-sasl.h"
	93	#endif
	94
1fc62412 SS	95	struct VncSurface
	96	{
	97	uint32_t dirty[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS];
	98	DisplaySurface *ds;
	99	};
5fb6c7a8	100
19a490bf AL	101	struct VncDisplay
19a490bf AL	102	{
41b4bef6	103	QTAILQ_HEAD(, VncState) clients;
703bc68f	104	QEMUTimer *timer;
2430ffe4	105	int timer_interval;
19a490bf AL	106	int lsock;
19a490bf AL	107	DisplayState *ds;
c227f099	108	kbd_layout_t *kbd_layout;
3a0558b5	109	int lock_key_sync;
bd023f95 CC	110	#ifdef CONFIG_VNC_THREAD
	111	QemuMutex mutex;
	112	#endif
19a490bf	113
d467b679 GH	114	QEMUCursor *cursor;
	115	int cursor_msize;
	116	uint8_t *cursor_mask;
	117
1fc62412 SS	118	struct VncSurface guest; /* guest visible surface (aka ds->surface) */
	119	DisplaySurface server; / vnc server surface */
	120
19a490bf AL	121	char *display;
	122	char *password;
	123	int auth;
6f9c78c1	124	bool lossy;
19a490bf	125	#ifdef CONFIG_VNC_TLS
5fb6c7a8 AL	126	int subauth; /* Used by VeNCrypt */
5fb6c7a8 AL	127	VncDisplayTLS tls;
19a490bf	128	#endif
76655d6d AL	129	#ifdef CONFIG_VNC_SASL
	130	VncDisplaySASL sasl;
	131	#endif
19a490bf AL	132	};
19a490bf AL	133
d1af0e05 CC	134	typedef struct VncTight {
	135	int type;
	136	uint8_t quality;
	137	uint8_t compression;
	138	uint8_t pixel24;
	139	Buffer tight;
	140	Buffer tmp;
	141	Buffer zlib;
	142	Buffer gradient;
	143	#ifdef CONFIG_VNC_JPEG
	144	Buffer jpeg;
	145	#endif
	146	#ifdef CONFIG_VNC_PNG
	147	Buffer png;
	148	#endif
	149	int levels[4];
	150	z_stream stream[4];
	151	} VncTight;
	152
	153	typedef struct VncHextile {
	154	VncSendHextileTile *send_tile;
	155	} VncHextile;
	156
	157	typedef struct VncZlib {
	158	Buffer zlib;
	159	Buffer tmp;
	160	z_stream stream;
	161	int level;
	162	} VncZlib;
	163
bd023f95 CC	164	#ifdef CONFIG_VNC_THREAD
	165	struct VncRect
	166	{
	167	int x;
	168	int y;
	169	int w;
	170	int h;
	171	};
	172
	173	struct VncRectEntry
	174	{
	175	struct VncRect rect;
	176	QLIST_ENTRY(VncRectEntry) next;
	177	};
	178
	179	struct VncJob
	180	{
	181	VncState *vs;
	182
	183	QLIST_HEAD(, VncRectEntry) rectangles;
	184	QTAILQ_ENTRY(VncJob) next;
	185	};
	186	#else
	187	struct VncJob
	188	{
	189	VncState *vs;
	190	int rectangles;
	191	size_t saved_offset;
	192	};
	193	#endif
	194
19a490bf AL	195	struct VncState
19a490bf AL	196	{
19a490bf	197	int csock;
6baebed7	198
19a490bf	199	DisplayState *ds;
1fc62412	200	uint32_t dirty[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS];
6baebed7	201
19a490bf AL	202	VncDisplay *vd;
19a490bf AL	203	int need_update;
c522d0e2	204	int force_update;
19a490bf AL	205	uint32_t features;
	206	int absolute;
	207	int last_x;
	208	int last_y;
5862d195 GH	209	int client_width;
5862d195 GH	210	int client_height;
19a490bf AL	211
19a490bf AL	212	uint32_t vnc_encoding;
19a490bf AL	213
	214	int major;
	215	int minor;
	216
	217	char challenge[VNC_AUTH_CHALLENGE_SIZE];
19a490bf	218	#ifdef CONFIG_VNC_TLS
5fb6c7a8	219	VncStateTLS tls;
19a490bf	220	#endif
2f9606b3 AL	221	#ifdef CONFIG_VNC_SASL
	222	VncStateSASL sasl;
	223	#endif
19a490bf	224
4a80dba3 LC	225	QObject *info;
4a80dba3 LC	226
19a490bf AL	227	Buffer output;
	228	Buffer input;
	229	/* current output mode information */
	230	VncWritePixels *write_pixels;
6baebed7	231	DisplaySurface clientds;
19a490bf AL	232
	233	CaptureVoiceOut *audio_cap;
	234	struct audsettings as;
	235
	236	VncReadEvent *read_handler;
	237	size_t read_handler_expect;
	238	/* input */
	239	uint8_t modifiers_state[256];
7ffb82ca	240	QEMUPutLEDEntry *led;
19a490bf	241
bd023f95 CC	242	bool abort;
	243	#ifndef CONFIG_VNC_THREAD
	244	VncJob job;
	245	#else
	246	QemuMutex output_mutex;
	247	#endif
	248
	249	/* Encoding specific, if you add something here, don't forget to
	250	* update vnc_async_encoding_start()
	251	*/
d1af0e05 CC	252	VncTight tight;
	253	VncZlib zlib;
	254	VncHextile hextile;
70a4568f	255
19a490bf	256
37c34d9d AL	257	Notifier mouse_mode_notifier;
37c34d9d AL	258
41b4bef6	259	QTAILQ_ENTRY(VncState) next;
19a490bf AL	260	};
19a490bf AL	261
e06679fb AL	262
	263	/*****************************************************************************
	264	*
	265	* Authentication modes
	266	*
	267	*****************************************************************************/
	268
	269	enum {
	270	VNC_AUTH_INVALID = 0,
	271	VNC_AUTH_NONE = 1,
	272	VNC_AUTH_VNC = 2,
	273	VNC_AUTH_RA2 = 5,
	274	VNC_AUTH_RA2NE = 6,
	275	VNC_AUTH_TIGHT = 16,
	276	VNC_AUTH_ULTRA = 17,
2f9606b3 AL	277	VNC_AUTH_TLS = 18, /* Supported in GTK-VNC & VINO */
	278	VNC_AUTH_VENCRYPT = 19, /* Supported in GTK-VNC & VeNCrypt */
	279	VNC_AUTH_SASL = 20, /* Supported in GTK-VNC & VINO */
e06679fb AL	280	};
e06679fb AL	281
e06679fb AL	282	enum {
	283	VNC_AUTH_VENCRYPT_PLAIN = 256,
	284	VNC_AUTH_VENCRYPT_TLSNONE = 257,
	285	VNC_AUTH_VENCRYPT_TLSVNC = 258,
	286	VNC_AUTH_VENCRYPT_TLSPLAIN = 259,
	287	VNC_AUTH_VENCRYPT_X509NONE = 260,
	288	VNC_AUTH_VENCRYPT_X509VNC = 261,
	289	VNC_AUTH_VENCRYPT_X509PLAIN = 262,
2f9606b3 AL	290	VNC_AUTH_VENCRYPT_X509SASL = 263,
2f9606b3 AL	291	VNC_AUTH_VENCRYPT_TLSSASL = 264,
e06679fb AL	292	};
e06679fb AL	293
e06679fb AL	294
	295	/*****************************************************************************
	296	*
	297	* Encoding types
	298	*
	299	*****************************************************************************/
	300
	301	#define VNC_ENCODING_RAW 0x00000000
	302	#define VNC_ENCODING_COPYRECT 0x00000001
	303	#define VNC_ENCODING_RRE 0x00000002
	304	#define VNC_ENCODING_CORRE 0x00000004
	305	#define VNC_ENCODING_HEXTILE 0x00000005
	306	#define VNC_ENCODING_ZLIB 0x00000006
	307	#define VNC_ENCODING_TIGHT 0x00000007
	308	#define VNC_ENCODING_ZLIBHEX 0x00000008
	309	#define VNC_ENCODING_TRLE 0x0000000f
	310	#define VNC_ENCODING_ZRLE 0x00000010
	311	#define VNC_ENCODING_ZYWRLE 0x00000011
	312	#define VNC_ENCODING_COMPRESSLEVEL0 0xFFFFFF00 /* -256 */
	313	#define VNC_ENCODING_QUALITYLEVEL0 0xFFFFFFE0 /* -32 */
	314	#define VNC_ENCODING_XCURSOR 0xFFFFFF10 /* -240 */
	315	#define VNC_ENCODING_RICH_CURSOR 0xFFFFFF11 /* -239 */
	316	#define VNC_ENCODING_POINTER_POS 0xFFFFFF18 /* -232 */
	317	#define VNC_ENCODING_LASTRECT 0xFFFFFF20 /* -224 */
	318	#define VNC_ENCODING_DESKTOPRESIZE 0xFFFFFF21 /* -223 */
	319	#define VNC_ENCODING_POINTER_TYPE_CHANGE 0XFFFFFEFF /* -257 */
	320	#define VNC_ENCODING_EXT_KEY_EVENT 0XFFFFFEFE /* -258 */
	321	#define VNC_ENCODING_AUDIO 0XFFFFFEFD /* -259 */
efe556ad	322	#define VNC_ENCODING_TIGHT_PNG 0xFFFFFEFC /* -260 */
e06679fb AL	323	#define VNC_ENCODING_WMVi 0x574D5669
	324
	325	/*****************************************************************************
	326	*
	327	* Other tight constants
	328	*
	329	*****************************************************************************/
	330
	331	/*
	332	* Vendors known by TightVNC: standard VNC/RealVNC, TridiaVNC, and TightVNC.
	333	*/
	334
	335	#define VNC_TIGHT_CCB_RESET_MASK (0x0f)
	336	#define VNC_TIGHT_CCB_TYPE_MASK (0x0f << 4)
	337	#define VNC_TIGHT_CCB_TYPE_FILL (0x08 << 4)
	338	#define VNC_TIGHT_CCB_TYPE_JPEG (0x09 << 4)
efe556ad	339	#define VNC_TIGHT_CCB_TYPE_PNG (0x0A << 4)
e06679fb AL	340	#define VNC_TIGHT_CCB_BASIC_MAX (0x07 << 4)
	341	#define VNC_TIGHT_CCB_BASIC_ZLIB (0x03 << 4)
	342	#define VNC_TIGHT_CCB_BASIC_FILTER (0x04 << 4)
	343
	344	/*****************************************************************************
	345	*
	346	* Features
	347	*
	348	*****************************************************************************/
	349
	350	#define VNC_FEATURE_RESIZE 0
	351	#define VNC_FEATURE_HEXTILE 1
	352	#define VNC_FEATURE_POINTER_TYPE_CHANGE 2
	353	#define VNC_FEATURE_WMVI 3
	354	#define VNC_FEATURE_TIGHT 4
	355	#define VNC_FEATURE_ZLIB 5
753b4053	356	#define VNC_FEATURE_COPYRECT 6
d467b679	357	#define VNC_FEATURE_RICH_CURSOR 7
efe556ad	358	#define VNC_FEATURE_TIGHT_PNG 8
e06679fb AL	359
	360	#define VNC_FEATURE_RESIZE_MASK (1 << VNC_FEATURE_RESIZE)
	361	#define VNC_FEATURE_HEXTILE_MASK (1 << VNC_FEATURE_HEXTILE)
	362	#define VNC_FEATURE_POINTER_TYPE_CHANGE_MASK (1 << VNC_FEATURE_POINTER_TYPE_CHANGE)
	363	#define VNC_FEATURE_WMVI_MASK (1 << VNC_FEATURE_WMVI)
	364	#define VNC_FEATURE_TIGHT_MASK (1 << VNC_FEATURE_TIGHT)
	365	#define VNC_FEATURE_ZLIB_MASK (1 << VNC_FEATURE_ZLIB)
753b4053	366	#define VNC_FEATURE_COPYRECT_MASK (1 << VNC_FEATURE_COPYRECT)
d467b679	367	#define VNC_FEATURE_RICH_CURSOR_MASK (1 << VNC_FEATURE_RICH_CURSOR)
efe556ad	368	#define VNC_FEATURE_TIGHT_PNG_MASK (1 << VNC_FEATURE_TIGHT_PNG)
e06679fb	369
5fb6c7a8	370
46a183da DB	371	/* Client -> Server message IDs */
	372	#define VNC_MSG_CLIENT_SET_PIXEL_FORMAT 0
	373	#define VNC_MSG_CLIENT_SET_ENCODINGS 2
	374	#define VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST 3
	375	#define VNC_MSG_CLIENT_KEY_EVENT 4
	376	#define VNC_MSG_CLIENT_POINTER_EVENT 5
	377	#define VNC_MSG_CLIENT_CUT_TEXT 6
	378	#define VNC_MSG_CLIENT_VMWARE_0 127
	379	#define VNC_MSG_CLIENT_CALL_CONTROL 249
	380	#define VNC_MSG_CLIENT_XVP 250
	381	#define VNC_MSG_CLIENT_SET_DESKTOP_SIZE 251
	382	#define VNC_MSG_CLIENT_TIGHT 252
	383	#define VNC_MSG_CLIENT_GII 253
	384	#define VNC_MSG_CLIENT_VMWARE_1 254
	385	#define VNC_MSG_CLIENT_QEMU 255
	386
	387	/* Server -> Client message IDs */
	388	#define VNC_MSG_SERVER_FRAMEBUFFER_UPDATE 0
	389	#define VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES 1
	390	#define VNC_MSG_SERVER_BELL 2
	391	#define VNC_MSG_SERVER_CUT_TEXT 3
	392	#define VNC_MSG_SERVER_VMWARE_0 127
	393	#define VNC_MSG_SERVER_CALL_CONTROL 249
	394	#define VNC_MSG_SERVER_XVP 250
	395	#define VNC_MSG_SERVER_TIGHT 252
	396	#define VNC_MSG_SERVER_GII 253
	397	#define VNC_MSG_SERVER_VMWARE_1 254
	398	#define VNC_MSG_SERVER_QEMU 255
	399
	400
	401
	402	/* QEMU client -> server message IDs */
	403	#define VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT 0
	404	#define VNC_MSG_CLIENT_QEMU_AUDIO 1
	405
	406	/* QEMU server -> client message IDs */
	407	#define VNC_MSG_SERVER_QEMU_AUDIO 1
	408
	409
	410
	411	/* QEMU client -> server audio message IDs */
	412	#define VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE 0
	413	#define VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE 1
	414	#define VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT 2
	415
	416	/* QEMU server -> client audio message IDs */
	417	#define VNC_MSG_SERVER_QEMU_AUDIO_END 0
	418	#define VNC_MSG_SERVER_QEMU_AUDIO_BEGIN 1
	419	#define VNC_MSG_SERVER_QEMU_AUDIO_DATA 2
	420
	421
5fb6c7a8 AL	422	/*****************************************************************************
	423	*
	424	* Internal APIs
	425	*
	426	*****************************************************************************/
	427
	428	/* Event loop functions */
	429	void vnc_client_read(void *opaque);
	430	void vnc_client_write(void *opaque);
	431
2f9606b3 AL	432	long vnc_client_read_buf(VncState vs, uint8_t data, size_t datalen);
2f9606b3 AL	433	long vnc_client_write_buf(VncState vs, const uint8_t data, size_t datalen);
5fb6c7a8 AL	434
	435	/* Protocol I/O functions */
	436	void vnc_write(VncState vs, const void data, size_t len);
	437	void vnc_write_u32(VncState *vs, uint32_t value);
	438	void vnc_write_s32(VncState *vs, int32_t value);
	439	void vnc_write_u16(VncState *vs, uint16_t value);
	440	void vnc_write_u8(VncState *vs, uint8_t value);
	441	void vnc_flush(VncState *vs);
	442	void vnc_read_when(VncState vs, VncReadEvent func, size_t expecting);
	443
	444
	445	/* Buffer I/O functions */
	446	uint8_t read_u8(uint8_t *data, size_t offset);
	447	uint16_t read_u16(uint8_t *data, size_t offset);
	448	int32_t read_s32(uint8_t *data, size_t offset);
	449	uint32_t read_u32(uint8_t *data, size_t offset);
	450
	451	/* Protocol stage functions */
	452	void vnc_client_error(VncState *vs);
2f9606b3	453	int vnc_client_io_error(VncState *vs, int ret, int last_errno);
5fb6c7a8 AL	454
	455	void start_client_init(VncState *vs);
	456	void start_auth_vnc(VncState *vs);
	457
2f9606b3 AL	458	/* Buffer management */
	459	void buffer_reserve(Buffer *buffer, size_t len);
	460	int buffer_empty(Buffer *buffer);
	461	uint8_t buffer_end(Buffer buffer);
	462	void buffer_reset(Buffer *buffer);
5d418e3b	463	void buffer_free(Buffer *buffer);
2f9606b3 AL	464	void buffer_append(Buffer buffer, const void data, size_t len);
	465
	466
	467	/* Misc helpers */
	468
	469	char vnc_socket_local_addr(const char format, int fd);
	470	char vnc_socket_remote_addr(const char format, int fd);
	471
efe556ad CC	472	static inline uint32_t vnc_has_feature(VncState *vs, int feature) {
	473	return (vs->features & (1 << feature));
	474	}
	475
70a4568f CC	476	/* Framebuffer */
	477	void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
	478	int32_t encoding);
	479
	480	void vnc_convert_pixel(VncState vs, uint8_t buf, uint32_t v);
	481
	482	/* Encodings */
bd023f95 CC	483	int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
bd023f95 CC	484
a885211e	485	int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
70a4568f	486
a885211e	487	int vnc_hextile_send_framebuffer_update(VncState *vs, int x,
70a4568f CC	488	int y, int w, int h);
	489	void vnc_hextile_set_pixel_conversion(VncState *vs, int generic);
	490
380282b0 CC	491	void vnc_zlib_zalloc(void x, unsigned items, unsigned size);
380282b0 CC	492	void vnc_zlib_zfree(void x, void addr);
a885211e	493	int vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
161c4f20	494	void vnc_zlib_clear(VncState *vs);
70a4568f	495
380282b0	496	int vnc_tight_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
efe556ad CC	497	int vnc_tight_png_send_framebuffer_update(VncState *vs, int x, int y,
efe556ad CC	498	int w, int h);
380282b0 CC	499	void vnc_tight_clear(VncState *vs);
380282b0 CC	500
19a490bf	501	#endif /* __QEMU_VNC_H */