mirror of
https://github.com/xemu-project/xemu.git
synced 2024-12-05 10:16:50 +00:00
4ee74fa708
Currently there is only a single listener for plain VNC and a single listener for websockets VNC. This means that if getaddrinfo() returns multiple IP addresses, for a hostname, the VNC server can only listen on one of them. This is just bearable if listening on wildcard interface, or if the host only has a single network interface to listen on, but if there are multiple NICs and the VNC server needs to listen on 2 or more specific IP addresses, it can't be done. This refactors the VncDisplay state so that it holds an array of listening sockets, but still only listens on one socket. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170203120649.15637-4-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
581 lines
18 KiB
C
581 lines
18 KiB
C
/*
|
|
* QEMU VNC display driver
|
|
*
|
|
* Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
|
|
* 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"
|
|
#include "qemu/thread.h"
|
|
#include "ui/console.h"
|
|
#include "audio/audio.h"
|
|
#include "qemu/bitmap.h"
|
|
#include "crypto/tlssession.h"
|
|
#include "qemu/buffer.h"
|
|
#include "io/channel-socket.h"
|
|
#include "io/channel-tls.h"
|
|
#include <zlib.h>
|
|
|
|
#include "keymaps.h"
|
|
#include "vnc-palette.h"
|
|
#include "vnc-enc-zrle.h"
|
|
#include "qapi-types.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 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, 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);
|
|
|
|
/* VNC_DIRTY_PIXELS_PER_BIT is the number of dirty pixels represented
|
|
* by one bit in the dirty bitmap, should be a power of 2 */
|
|
#define VNC_DIRTY_PIXELS_PER_BIT 16
|
|
|
|
/* VNC_MAX_WIDTH must be a multiple of VNC_DIRTY_PIXELS_PER_BIT. */
|
|
|
|
#define VNC_MAX_WIDTH ROUND_UP(2560, VNC_DIRTY_PIXELS_PER_BIT)
|
|
#define VNC_MAX_HEIGHT 2048
|
|
|
|
/* VNC_DIRTY_BITS is the number of bits in the dirty bitmap. */
|
|
#define VNC_DIRTY_BITS (VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT)
|
|
|
|
/* VNC_DIRTY_BPL (BPL = bits per line) might be greater than
|
|
* VNC_DIRTY_BITS due to alignment */
|
|
#define VNC_DIRTY_BPL(x) (sizeof((x)->dirty) / VNC_MAX_HEIGHT * BITS_PER_BYTE)
|
|
|
|
#define VNC_STAT_RECT 64
|
|
#define VNC_STAT_COLS (VNC_MAX_WIDTH / VNC_STAT_RECT)
|
|
#define VNC_STAT_ROWS (VNC_MAX_HEIGHT / VNC_STAT_RECT)
|
|
|
|
#define VNC_AUTH_CHALLENGE_SIZE 16
|
|
|
|
typedef struct VncDisplay VncDisplay;
|
|
|
|
#include "vnc-auth-vencrypt.h"
|
|
#ifdef CONFIG_VNC_SASL
|
|
#include "vnc-auth-sasl.h"
|
|
#endif
|
|
#include "vnc-ws.h"
|
|
|
|
struct VncRectStat
|
|
{
|
|
/* time of last 10 updates, to find update frequency */
|
|
struct timeval times[10];
|
|
int idx;
|
|
|
|
double freq; /* Update frequency (in Hz) */
|
|
bool updated; /* Already updated during this refresh */
|
|
};
|
|
|
|
typedef struct VncRectStat VncRectStat;
|
|
|
|
struct VncSurface
|
|
{
|
|
struct timeval last_freq_check;
|
|
DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT],
|
|
VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT);
|
|
VncRectStat stats[VNC_STAT_ROWS][VNC_STAT_COLS];
|
|
pixman_image_t *fb;
|
|
pixman_format_code_t format;
|
|
};
|
|
|
|
typedef enum VncShareMode {
|
|
VNC_SHARE_MODE_CONNECTING = 1,
|
|
VNC_SHARE_MODE_SHARED,
|
|
VNC_SHARE_MODE_EXCLUSIVE,
|
|
VNC_SHARE_MODE_DISCONNECTED,
|
|
} VncShareMode;
|
|
|
|
typedef enum VncSharePolicy {
|
|
VNC_SHARE_POLICY_IGNORE = 1,
|
|
VNC_SHARE_POLICY_ALLOW_EXCLUSIVE,
|
|
VNC_SHARE_POLICY_FORCE_SHARED,
|
|
} VncSharePolicy;
|
|
|
|
struct VncDisplay
|
|
{
|
|
QTAILQ_HEAD(, VncState) clients;
|
|
int num_connecting;
|
|
int num_shared;
|
|
int num_exclusive;
|
|
int connections_limit;
|
|
VncSharePolicy share_policy;
|
|
size_t nlsock;
|
|
QIOChannelSocket **lsock;
|
|
guint *lsock_tag;
|
|
size_t nlwebsock;
|
|
QIOChannelSocket **lwebsock;
|
|
guint *lwebsock_tag;
|
|
DisplaySurface *ds;
|
|
DisplayChangeListener dcl;
|
|
kbd_layout_t *kbd_layout;
|
|
int lock_key_sync;
|
|
QEMUPutLEDEntry *led;
|
|
int ledstate;
|
|
int key_delay_ms;
|
|
QemuMutex mutex;
|
|
|
|
QEMUCursor *cursor;
|
|
int cursor_msize;
|
|
uint8_t *cursor_mask;
|
|
|
|
struct VncSurface guest; /* guest visible surface (aka ds->surface) */
|
|
pixman_image_t *server; /* vnc server surface */
|
|
|
|
const char *id;
|
|
QTAILQ_ENTRY(VncDisplay) next;
|
|
bool is_unix;
|
|
char *password;
|
|
time_t expires;
|
|
int auth;
|
|
int subauth; /* Used by VeNCrypt */
|
|
int ws_auth; /* Used by websockets */
|
|
int ws_subauth; /* Used by websockets */
|
|
bool lossy;
|
|
bool non_adaptive;
|
|
QCryptoTLSCreds *tlscreds;
|
|
char *tlsaclname;
|
|
#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;
|
|
|
|
typedef struct VncZrle {
|
|
int type;
|
|
Buffer fb;
|
|
Buffer zrle;
|
|
Buffer tmp;
|
|
Buffer zlib;
|
|
z_stream stream;
|
|
VncPalette palette;
|
|
} VncZrle;
|
|
|
|
typedef struct VncZywrle {
|
|
int buf[VNC_ZRLE_TILE_WIDTH * VNC_ZRLE_TILE_HEIGHT];
|
|
} VncZywrle;
|
|
|
|
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;
|
|
};
|
|
|
|
struct VncState
|
|
{
|
|
QIOChannelSocket *sioc; /* The underlying socket */
|
|
QIOChannel *ioc; /* The channel currently used for I/O */
|
|
guint ioc_tag;
|
|
gboolean disconnecting;
|
|
|
|
DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT], VNC_DIRTY_BITS);
|
|
uint8_t **lossy_rect; /* Not an Array to avoid costly memcpy in
|
|
* vnc-jobs-async.c */
|
|
|
|
VncDisplay *vd;
|
|
int need_update;
|
|
int force_update;
|
|
int has_dirty;
|
|
uint32_t features;
|
|
int absolute;
|
|
int last_x;
|
|
int last_y;
|
|
uint32_t last_bmask;
|
|
int client_width;
|
|
int client_height;
|
|
VncShareMode share_mode;
|
|
|
|
uint32_t vnc_encoding;
|
|
|
|
int major;
|
|
int minor;
|
|
|
|
int auth;
|
|
int subauth; /* Used by VeNCrypt */
|
|
char challenge[VNC_AUTH_CHALLENGE_SIZE];
|
|
QCryptoTLSSession *tls; /* Borrowed pointer from channel, don't free */
|
|
#ifdef CONFIG_VNC_SASL
|
|
VncStateSASL sasl;
|
|
#endif
|
|
bool encode_ws;
|
|
bool websocket;
|
|
|
|
VncClientInfo *info;
|
|
|
|
Buffer output;
|
|
Buffer input;
|
|
/* current output mode information */
|
|
VncWritePixels *write_pixels;
|
|
PixelFormat client_pf;
|
|
pixman_format_code_t client_format;
|
|
bool client_be;
|
|
|
|
CaptureVoiceOut *audio_cap;
|
|
struct audsettings as;
|
|
|
|
VncReadEvent *read_handler;
|
|
size_t read_handler_expect;
|
|
/* input */
|
|
uint8_t modifiers_state[256];
|
|
|
|
bool abort;
|
|
QemuMutex output_mutex;
|
|
QEMUBH *bh;
|
|
Buffer jobs_buffer;
|
|
|
|
/* Encoding specific, if you add something here, don't forget to
|
|
* update vnc_async_encoding_start()
|
|
*/
|
|
VncTight tight;
|
|
VncZlib zlib;
|
|
VncHextile hextile;
|
|
VncZrle zrle;
|
|
VncZywrle zywrle;
|
|
|
|
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_LED_STATE 0XFFFFFEFB /* -261 */
|
|
#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_ZRLE 9
|
|
#define VNC_FEATURE_ZYWRLE 10
|
|
#define VNC_FEATURE_LED_STATE 11
|
|
|
|
#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)
|
|
#define VNC_FEATURE_ZRLE_MASK (1 << VNC_FEATURE_ZRLE)
|
|
#define VNC_FEATURE_ZYWRLE_MASK (1 << VNC_FEATURE_ZYWRLE)
|
|
#define VNC_FEATURE_LED_STATE_MASK (1 << VNC_FEATURE_LED_STATE)
|
|
|
|
|
|
/* 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 */
|
|
gboolean vnc_client_io(QIOChannel *ioc,
|
|
GIOCondition condition,
|
|
void *opaque);
|
|
|
|
ssize_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen);
|
|
ssize_t 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);
|
|
void vnc_disconnect_finish(VncState *vs);
|
|
void vnc_start_protocol(VncState *vs);
|
|
|
|
|
|
/* Buffer I/O functions */
|
|
uint32_t read_u32(uint8_t *data, size_t offset);
|
|
|
|
/* Protocol stage functions */
|
|
void vnc_client_error(VncState *vs);
|
|
ssize_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp);
|
|
|
|
void start_client_init(VncState *vs);
|
|
void start_auth_vnc(VncState *vs);
|
|
|
|
|
|
/* Misc helpers */
|
|
|
|
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);
|
|
|
|
/* server fb is in PIXMAN_x8r8g8b8 */
|
|
#define VNC_SERVER_FB_FORMAT PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8)
|
|
#define VNC_SERVER_FB_BITS (PIXMAN_FORMAT_BPP(VNC_SERVER_FB_FORMAT))
|
|
#define VNC_SERVER_FB_BYTES ((VNC_SERVER_FB_BITS+7)/8)
|
|
|
|
void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y);
|
|
int vnc_server_fb_stride(VncDisplay *vd);
|
|
|
|
void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v);
|
|
double vnc_update_freq(VncState *vs, int x, int y, int w, int h);
|
|
void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h);
|
|
|
|
/* 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);
|
|
|
|
int vnc_zrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
|
|
int vnc_zywrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
|
|
void vnc_zrle_clear(VncState *vs);
|
|
|
|
#endif /* QEMU_VNC_H */
|