aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU VNC display driver |
| 3 | * |
| 4 | * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws> |
| 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 | |
Markus Armbruster | 2a6a407 | 2016-06-29 13:47:03 +0200 | [diff] [blame] | 27 | #ifndef QEMU_VNC_H |
| 28 | #define QEMU_VNC_H |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 29 | |
| 30 | #include "qemu-common.h" |
Markus Armbruster | 9af2398 | 2018-02-11 10:36:01 +0100 | [diff] [blame] | 31 | #include "qapi/qapi-types-ui.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 32 | #include "qemu/queue.h" |
| 33 | #include "qemu/thread.h" |
Paolo Bonzini | 28ecbae | 2012-11-28 12:06:30 +0100 | [diff] [blame] | 34 | #include "ui/console.h" |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 35 | #include "audio/audio.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 36 | #include "qemu/bitmap.h" |
Daniel P. Berrange | 3e305e4 | 2015-08-06 14:39:32 +0100 | [diff] [blame] | 37 | #include "crypto/tlssession.h" |
Daniel P. Berrange | 88c5f20 | 2015-03-03 17:13:42 +0000 | [diff] [blame] | 38 | #include "qemu/buffer.h" |
Daniel P. Berrange | 04d2529 | 2015-02-27 16:20:57 +0000 | [diff] [blame] | 39 | #include "io/channel-socket.h" |
Daniel P. Berrange | 2cc4522 | 2015-03-02 19:01:05 +0000 | [diff] [blame] | 40 | #include "io/channel-tls.h" |
Daniel P. Berrange | 13e1d0e | 2018-02-01 16:45:14 +0000 | [diff] [blame] | 41 | #include "io/net-listener.h" |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 42 | #include <zlib.h> |
| 43 | |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 44 | #include "keymaps.h" |
Corentin Chary | 148954f | 2011-02-04 09:06:01 +0100 | [diff] [blame] | 45 | #include "vnc-palette.h" |
| 46 | #include "vnc-enc-zrle.h" |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 47 | |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 48 | // #define _VNC_DEBUG 1 |
| 49 | |
| 50 | #ifdef _VNC_DEBUG |
| 51 | #define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
| 52 | #else |
| 53 | #define VNC_DEBUG(fmt, ...) do { } while (0) |
| 54 | #endif |
| 55 | |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 56 | /***************************************************************************** |
| 57 | * |
| 58 | * Core data structures |
| 59 | * |
| 60 | *****************************************************************************/ |
| 61 | |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 62 | typedef struct VncState VncState; |
Corentin Chary | bd023f9 | 2010-07-07 20:58:02 +0200 | [diff] [blame] | 63 | typedef struct VncJob VncJob; |
| 64 | typedef struct VncRect VncRect; |
| 65 | typedef struct VncRectEntry VncRectEntry; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 66 | |
| 67 | typedef int VncReadEvent(VncState *vs, uint8_t *data, size_t len); |
| 68 | |
Gerd Hoffmann | 9f64916 | 2012-10-10 13:29:43 +0200 | [diff] [blame] | 69 | typedef void VncWritePixels(VncState *vs, void *data, int size); |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 70 | |
| 71 | typedef void VncSendHextileTile(VncState *vs, |
| 72 | int x, int y, int w, int h, |
| 73 | void *last_bg, |
| 74 | void *last_fg, |
| 75 | int *has_bg, int *has_fg); |
| 76 | |
Peter Lieven | b4c85dd | 2014-01-08 10:08:33 +0100 | [diff] [blame] | 77 | /* VNC_DIRTY_PIXELS_PER_BIT is the number of dirty pixels represented |
Peter Lieven | bea60dd | 2014-06-30 10:57:51 +0200 | [diff] [blame] | 78 | * by one bit in the dirty bitmap, should be a power of 2 */ |
Peter Lieven | b4c85dd | 2014-01-08 10:08:33 +0100 | [diff] [blame] | 79 | #define VNC_DIRTY_PIXELS_PER_BIT 16 |
| 80 | |
Peter Lieven | bea60dd | 2014-06-30 10:57:51 +0200 | [diff] [blame] | 81 | /* VNC_MAX_WIDTH must be a multiple of VNC_DIRTY_PIXELS_PER_BIT. */ |
| 82 | |
| 83 | #define VNC_MAX_WIDTH ROUND_UP(2560, VNC_DIRTY_PIXELS_PER_BIT) |
| 84 | #define VNC_MAX_HEIGHT 2048 |
| 85 | |
Stefan Weil | 23bfe28 | 2011-03-03 21:37:55 +0100 | [diff] [blame] | 86 | /* VNC_DIRTY_BITS is the number of bits in the dirty bitmap. */ |
Peter Lieven | b4c85dd | 2014-01-08 10:08:33 +0100 | [diff] [blame] | 87 | #define VNC_DIRTY_BITS (VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT) |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 88 | |
Peter Lieven | 12b316d | 2014-01-08 10:08:35 +0100 | [diff] [blame] | 89 | /* VNC_DIRTY_BPL (BPL = bits per line) might be greater than |
| 90 | * VNC_DIRTY_BITS due to alignment */ |
| 91 | #define VNC_DIRTY_BPL(x) (sizeof((x)->dirty) / VNC_MAX_HEIGHT * BITS_PER_BYTE) |
| 92 | |
Corentin Chary | 999342a | 2011-02-04 09:05:55 +0100 | [diff] [blame] | 93 | #define VNC_STAT_RECT 64 |
| 94 | #define VNC_STAT_COLS (VNC_MAX_WIDTH / VNC_STAT_RECT) |
| 95 | #define VNC_STAT_ROWS (VNC_MAX_HEIGHT / VNC_STAT_RECT) |
| 96 | |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 97 | #define VNC_AUTH_CHALLENGE_SIZE 16 |
| 98 | |
| 99 | typedef struct VncDisplay VncDisplay; |
| 100 | |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 101 | #include "vnc-auth-vencrypt.h" |
aliguori | 2f9606b | 2009-03-06 20:27:28 +0000 | [diff] [blame] | 102 | #ifdef CONFIG_VNC_SASL |
| 103 | #include "vnc-auth-sasl.h" |
| 104 | #endif |
Tim Hardeck | 7536ee4 | 2013-01-21 11:04:44 +0100 | [diff] [blame] | 105 | #include "vnc-ws.h" |
aliguori | 2f9606b | 2009-03-06 20:27:28 +0000 | [diff] [blame] | 106 | |
Corentin Chary | 999342a | 2011-02-04 09:05:55 +0100 | [diff] [blame] | 107 | struct VncRectStat |
| 108 | { |
| 109 | /* time of last 10 updates, to find update frequency */ |
| 110 | struct timeval times[10]; |
| 111 | int idx; |
| 112 | |
| 113 | double freq; /* Update frequency (in Hz) */ |
| 114 | bool updated; /* Already updated during this refresh */ |
| 115 | }; |
| 116 | |
| 117 | typedef struct VncRectStat VncRectStat; |
| 118 | |
Stefano Stabellini | 1fc6241 | 2009-08-03 10:54:32 +0100 | [diff] [blame] | 119 | struct VncSurface |
| 120 | { |
Corentin Chary | 999342a | 2011-02-04 09:05:55 +0100 | [diff] [blame] | 121 | struct timeval last_freq_check; |
Peter Lieven | bea60dd | 2014-06-30 10:57:51 +0200 | [diff] [blame] | 122 | DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT], |
| 123 | VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT); |
Corentin Chary | 999342a | 2011-02-04 09:05:55 +0100 | [diff] [blame] | 124 | VncRectStat stats[VNC_STAT_ROWS][VNC_STAT_COLS]; |
Gerd Hoffmann | 9f64916 | 2012-10-10 13:29:43 +0200 | [diff] [blame] | 125 | pixman_image_t *fb; |
| 126 | pixman_format_code_t format; |
Stefano Stabellini | 1fc6241 | 2009-08-03 10:54:32 +0100 | [diff] [blame] | 127 | }; |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 128 | |
Gerd Hoffmann | 8cf3648 | 2011-11-24 18:10:49 +0100 | [diff] [blame] | 129 | typedef enum VncShareMode { |
| 130 | VNC_SHARE_MODE_CONNECTING = 1, |
| 131 | VNC_SHARE_MODE_SHARED, |
| 132 | VNC_SHARE_MODE_EXCLUSIVE, |
| 133 | VNC_SHARE_MODE_DISCONNECTED, |
| 134 | } VncShareMode; |
| 135 | |
| 136 | typedef enum VncSharePolicy { |
| 137 | VNC_SHARE_POLICY_IGNORE = 1, |
| 138 | VNC_SHARE_POLICY_ALLOW_EXCLUSIVE, |
| 139 | VNC_SHARE_POLICY_FORCE_SHARED, |
| 140 | } VncSharePolicy; |
| 141 | |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 142 | struct VncDisplay |
| 143 | { |
Amit Shah | 41b4bef | 2010-02-05 16:34:05 +0530 | [diff] [blame] | 144 | QTAILQ_HEAD(, VncState) clients; |
Gerd Hoffmann | e5f34cd | 2014-10-02 12:09:34 +0200 | [diff] [blame] | 145 | int num_connecting; |
| 146 | int num_shared; |
Gerd Hoffmann | 8cf3648 | 2011-11-24 18:10:49 +0100 | [diff] [blame] | 147 | int num_exclusive; |
Gerd Hoffmann | e5f34cd | 2014-10-02 12:09:34 +0200 | [diff] [blame] | 148 | int connections_limit; |
Gerd Hoffmann | 8cf3648 | 2011-11-24 18:10:49 +0100 | [diff] [blame] | 149 | VncSharePolicy share_policy; |
Daniel P. Berrange | 13e1d0e | 2018-02-01 16:45:14 +0000 | [diff] [blame] | 150 | QIONetListener *listener; |
| 151 | QIONetListener *wslistener; |
Gerd Hoffmann | d39fa6d | 2013-02-28 17:16:48 +0100 | [diff] [blame] | 152 | DisplaySurface *ds; |
Gerd Hoffmann | 21ef45d | 2013-02-28 11:34:31 +0100 | [diff] [blame] | 153 | DisplayChangeListener dcl; |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 154 | kbd_layout_t *kbd_layout; |
Gerd Hoffmann | 3a0558b | 2010-03-10 17:12:02 +0100 | [diff] [blame] | 155 | int lock_key_sync; |
Pierre Ossman | a54f0d2 | 2017-01-09 17:14:02 +0100 | [diff] [blame] | 156 | QEMUPutLEDEntry *led; |
| 157 | int ledstate; |
Gerd Hoffmann | c5ce833 | 2016-06-01 08:22:30 +0200 | [diff] [blame] | 158 | int key_delay_ms; |
Corentin Chary | bd023f9 | 2010-07-07 20:58:02 +0200 | [diff] [blame] | 159 | QemuMutex mutex; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 160 | |
Gerd Hoffmann | d467b67 | 2010-05-21 11:54:34 +0200 | [diff] [blame] | 161 | QEMUCursor *cursor; |
| 162 | int cursor_msize; |
| 163 | uint8_t *cursor_mask; |
| 164 | |
Stefano Stabellini | 1fc6241 | 2009-08-03 10:54:32 +0100 | [diff] [blame] | 165 | struct VncSurface guest; /* guest visible surface (aka ds->surface) */ |
Gerd Hoffmann | 9f64916 | 2012-10-10 13:29:43 +0200 | [diff] [blame] | 166 | pixman_image_t *server; /* vnc server surface */ |
Stefano Stabellini | 1fc6241 | 2009-08-03 10:54:32 +0100 | [diff] [blame] | 167 | |
Gerd Hoffmann | d616ccc | 2014-07-29 12:14:08 +0200 | [diff] [blame] | 168 | const char *id; |
| 169 | QTAILQ_ENTRY(VncDisplay) next; |
Gerd Hoffmann | bf7aa45 | 2015-02-19 10:46:49 +0100 | [diff] [blame] | 170 | bool is_unix; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 171 | char *password; |
Gerd Hoffmann | 3c9405a | 2010-10-07 11:50:45 +0200 | [diff] [blame] | 172 | time_t expires; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 173 | int auth; |
Daniel P. Berrange | d169f04 | 2015-03-17 13:42:55 +0000 | [diff] [blame] | 174 | int subauth; /* Used by VeNCrypt */ |
Daniel P. Berrange | f9148c8 | 2015-03-17 13:42:57 +0000 | [diff] [blame] | 175 | int ws_auth; /* Used by websockets */ |
Daniel P. Berrange | eda24e1 | 2016-09-29 16:45:36 +0100 | [diff] [blame] | 176 | int ws_subauth; /* Used by websockets */ |
Corentin Chary | 6f9c78c | 2010-07-07 20:57:51 +0200 | [diff] [blame] | 177 | bool lossy; |
Corentin Chary | 80e0c8c | 2011-02-04 09:06:08 +0100 | [diff] [blame] | 178 | bool non_adaptive; |
Daniel P. Berrange | 3e305e4 | 2015-08-06 14:39:32 +0100 | [diff] [blame] | 179 | QCryptoTLSCreds *tlscreds; |
| 180 | char *tlsaclname; |
aliguori | 76655d6 | 2009-03-06 20:27:37 +0000 | [diff] [blame] | 181 | #ifdef CONFIG_VNC_SASL |
| 182 | VncDisplaySASL sasl; |
| 183 | #endif |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 184 | }; |
| 185 | |
Corentin Chary | d1af0e0 | 2010-07-07 20:57:59 +0200 | [diff] [blame] | 186 | typedef struct VncTight { |
| 187 | int type; |
| 188 | uint8_t quality; |
| 189 | uint8_t compression; |
| 190 | uint8_t pixel24; |
| 191 | Buffer tight; |
| 192 | Buffer tmp; |
| 193 | Buffer zlib; |
| 194 | Buffer gradient; |
| 195 | #ifdef CONFIG_VNC_JPEG |
| 196 | Buffer jpeg; |
| 197 | #endif |
| 198 | #ifdef CONFIG_VNC_PNG |
| 199 | Buffer png; |
| 200 | #endif |
| 201 | int levels[4]; |
| 202 | z_stream stream[4]; |
| 203 | } VncTight; |
| 204 | |
| 205 | typedef struct VncHextile { |
| 206 | VncSendHextileTile *send_tile; |
| 207 | } VncHextile; |
| 208 | |
| 209 | typedef struct VncZlib { |
| 210 | Buffer zlib; |
| 211 | Buffer tmp; |
| 212 | z_stream stream; |
| 213 | int level; |
| 214 | } VncZlib; |
| 215 | |
Corentin Chary | 148954f | 2011-02-04 09:06:01 +0100 | [diff] [blame] | 216 | typedef struct VncZrle { |
| 217 | int type; |
| 218 | Buffer fb; |
| 219 | Buffer zrle; |
| 220 | Buffer tmp; |
| 221 | Buffer zlib; |
| 222 | z_stream stream; |
| 223 | VncPalette palette; |
| 224 | } VncZrle; |
| 225 | |
| 226 | typedef struct VncZywrle { |
| 227 | int buf[VNC_ZRLE_TILE_WIDTH * VNC_ZRLE_TILE_HEIGHT]; |
| 228 | } VncZywrle; |
| 229 | |
Corentin Chary | bd023f9 | 2010-07-07 20:58:02 +0200 | [diff] [blame] | 230 | struct VncRect |
| 231 | { |
| 232 | int x; |
| 233 | int y; |
| 234 | int w; |
| 235 | int h; |
| 236 | }; |
| 237 | |
| 238 | struct VncRectEntry |
| 239 | { |
| 240 | struct VncRect rect; |
| 241 | QLIST_ENTRY(VncRectEntry) next; |
| 242 | }; |
| 243 | |
| 244 | struct VncJob |
| 245 | { |
| 246 | VncState *vs; |
| 247 | |
| 248 | QLIST_HEAD(, VncRectEntry) rectangles; |
| 249 | QTAILQ_ENTRY(VncJob) next; |
| 250 | }; |
Corentin Chary | bd023f9 | 2010-07-07 20:58:02 +0200 | [diff] [blame] | 251 | |
Daniel P. Berrange | fef1bba | 2017-12-18 19:12:21 +0000 | [diff] [blame] | 252 | typedef enum { |
| 253 | VNC_STATE_UPDATE_NONE, |
| 254 | VNC_STATE_UPDATE_INCREMENTAL, |
| 255 | VNC_STATE_UPDATE_FORCE, |
| 256 | } VncStateUpdate; |
| 257 | |
Gerd Hoffmann | f31f9c1 | 2018-05-07 12:22:54 +0200 | [diff] [blame] | 258 | #define VNC_MAGIC ((uint64_t)0x05b3f069b3d204bb) |
| 259 | |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 260 | struct VncState |
| 261 | { |
Gerd Hoffmann | f31f9c1 | 2018-05-07 12:22:54 +0200 | [diff] [blame] | 262 | uint64_t magic; |
Daniel P. Berrange | 04d2529 | 2015-02-27 16:20:57 +0000 | [diff] [blame] | 263 | QIOChannelSocket *sioc; /* The underlying socket */ |
| 264 | QIOChannel *ioc; /* The channel currently used for I/O */ |
| 265 | guint ioc_tag; |
| 266 | gboolean disconnecting; |
aliguori | 6baebed | 2009-03-20 15:59:14 +0000 | [diff] [blame] | 267 | |
Stefan Weil | 23bfe28 | 2011-03-03 21:37:55 +0100 | [diff] [blame] | 268 | DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT], VNC_DIRTY_BITS); |
Corentin Chary | 7d964c9 | 2011-02-04 09:05:56 +0100 | [diff] [blame] | 269 | uint8_t **lossy_rect; /* Not an Array to avoid costly memcpy in |
| 270 | * vnc-jobs-async.c */ |
aliguori | 6baebed | 2009-03-20 15:59:14 +0000 | [diff] [blame] | 271 | |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 272 | VncDisplay *vd; |
Daniel P. Berrange | fef1bba | 2017-12-18 19:12:21 +0000 | [diff] [blame] | 273 | VncStateUpdate update; /* Most recent pending request from client */ |
Daniel P. Berrange | ada8d2e | 2017-12-18 19:12:25 +0000 | [diff] [blame] | 274 | VncStateUpdate job_update; /* Currently processed by job thread */ |
Gerd Hoffmann | 6365828 | 2014-07-23 11:52:02 +0200 | [diff] [blame] | 275 | int has_dirty; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 276 | uint32_t features; |
| 277 | int absolute; |
| 278 | int last_x; |
| 279 | int last_y; |
Gerd Hoffmann | 14768eb | 2013-12-02 15:17:45 +0100 | [diff] [blame] | 280 | uint32_t last_bmask; |
Daniel P. Berrange | 4c956bd | 2018-01-18 15:52:54 +0000 | [diff] [blame] | 281 | size_t client_width; /* limited to u16 by RFB proto */ |
| 282 | size_t client_height; /* limited to u16 by RFB proto */ |
Gerd Hoffmann | 8cf3648 | 2011-11-24 18:10:49 +0100 | [diff] [blame] | 283 | VncShareMode share_mode; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 284 | |
| 285 | uint32_t vnc_encoding; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 286 | |
| 287 | int major; |
| 288 | int minor; |
| 289 | |
Daniel P. Berrange | 7e7e2eb | 2011-06-23 13:31:41 +0100 | [diff] [blame] | 290 | int auth; |
Daniel P. Berrange | d169f04 | 2015-03-17 13:42:55 +0000 | [diff] [blame] | 291 | int subauth; /* Used by VeNCrypt */ |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 292 | char challenge[VNC_AUTH_CHALLENGE_SIZE]; |
Daniel P. Berrange | 2cc4522 | 2015-03-02 19:01:05 +0000 | [diff] [blame] | 293 | QCryptoTLSSession *tls; /* Borrowed pointer from channel, don't free */ |
aliguori | 2f9606b | 2009-03-06 20:27:28 +0000 | [diff] [blame] | 294 | #ifdef CONFIG_VNC_SASL |
| 295 | VncStateSASL sasl; |
| 296 | #endif |
Tim Hardeck | 7536ee4 | 2013-01-21 11:04:44 +0100 | [diff] [blame] | 297 | bool encode_ws; |
| 298 | bool websocket; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 299 | |
Marc-André Lureau | 05eb4a2 | 2018-07-03 17:56:47 +0200 | [diff] [blame] | 300 | #ifdef CONFIG_VNC |
Wenchao Xia | fb6ba0d | 2014-06-18 08:43:49 +0200 | [diff] [blame] | 301 | VncClientInfo *info; |
Marc-André Lureau | 05eb4a2 | 2018-07-03 17:56:47 +0200 | [diff] [blame] | 302 | #endif |
Luiz Capitulino | 4a80dba | 2010-01-14 14:50:56 -0200 | [diff] [blame] | 303 | |
Daniel P. Berrange | ada8d2e | 2017-12-18 19:12:25 +0000 | [diff] [blame] | 304 | /* Job thread bottom half has put data for a forced update |
| 305 | * into the output buffer. This offset points to the end of |
| 306 | * the update data in the output buffer. This lets us determine |
| 307 | * when a force update is fully sent to the client, allowing |
| 308 | * us to process further forced updates. */ |
| 309 | size_t force_update_offset; |
Daniel P. Berrange | e2b72cb | 2017-12-18 19:12:24 +0000 | [diff] [blame] | 310 | /* We allow multiple incremental updates or audio capture |
| 311 | * samples to be queued in output buffer, provided the |
| 312 | * buffer size doesn't exceed this threshold. The value |
| 313 | * is calculating dynamically based on framebuffer size |
| 314 | * and audio sample settings in vnc_update_throttle_offset() */ |
| 315 | size_t throttle_output_offset; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 316 | Buffer output; |
| 317 | Buffer input; |
| 318 | /* current output mode information */ |
| 319 | VncWritePixels *write_pixels; |
Gerd Hoffmann | 9f64916 | 2012-10-10 13:29:43 +0200 | [diff] [blame] | 320 | PixelFormat client_pf; |
| 321 | pixman_format_code_t client_format; |
| 322 | bool client_be; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 323 | |
| 324 | CaptureVoiceOut *audio_cap; |
| 325 | struct audsettings as; |
| 326 | |
| 327 | VncReadEvent *read_handler; |
| 328 | size_t read_handler_expect; |
| 329 | /* input */ |
| 330 | uint8_t modifiers_state[256]; |
| 331 | |
Corentin Chary | bd023f9 | 2010-07-07 20:58:02 +0200 | [diff] [blame] | 332 | bool abort; |
Corentin Chary | bd023f9 | 2010-07-07 20:58:02 +0200 | [diff] [blame] | 333 | QemuMutex output_mutex; |
Corentin Chary | 175b2a6 | 2012-03-14 07:58:47 +0100 | [diff] [blame] | 334 | QEMUBH *bh; |
| 335 | Buffer jobs_buffer; |
Corentin Chary | bd023f9 | 2010-07-07 20:58:02 +0200 | [diff] [blame] | 336 | |
| 337 | /* Encoding specific, if you add something here, don't forget to |
| 338 | * update vnc_async_encoding_start() |
| 339 | */ |
Corentin Chary | d1af0e0 | 2010-07-07 20:57:59 +0200 | [diff] [blame] | 340 | VncTight tight; |
| 341 | VncZlib zlib; |
| 342 | VncHextile hextile; |
Corentin Chary | 148954f | 2011-02-04 09:06:01 +0100 | [diff] [blame] | 343 | VncZrle zrle; |
| 344 | VncZywrle zywrle; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 345 | |
Anthony Liguori | 37c34d9 | 2010-03-10 09:38:29 -0600 | [diff] [blame] | 346 | Notifier mouse_mode_notifier; |
| 347 | |
Amit Shah | 41b4bef | 2010-02-05 16:34:05 +0530 | [diff] [blame] | 348 | QTAILQ_ENTRY(VncState) next; |
aliguori | 19a490b | 2009-03-06 20:27:13 +0000 | [diff] [blame] | 349 | }; |
| 350 | |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 351 | |
| 352 | /***************************************************************************** |
| 353 | * |
| 354 | * Authentication modes |
| 355 | * |
| 356 | *****************************************************************************/ |
| 357 | |
| 358 | enum { |
| 359 | VNC_AUTH_INVALID = 0, |
| 360 | VNC_AUTH_NONE = 1, |
| 361 | VNC_AUTH_VNC = 2, |
| 362 | VNC_AUTH_RA2 = 5, |
| 363 | VNC_AUTH_RA2NE = 6, |
| 364 | VNC_AUTH_TIGHT = 16, |
| 365 | VNC_AUTH_ULTRA = 17, |
aliguori | 2f9606b | 2009-03-06 20:27:28 +0000 | [diff] [blame] | 366 | VNC_AUTH_TLS = 18, /* Supported in GTK-VNC & VINO */ |
| 367 | VNC_AUTH_VENCRYPT = 19, /* Supported in GTK-VNC & VeNCrypt */ |
| 368 | VNC_AUTH_SASL = 20, /* Supported in GTK-VNC & VINO */ |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 369 | }; |
| 370 | |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 371 | enum { |
| 372 | VNC_AUTH_VENCRYPT_PLAIN = 256, |
| 373 | VNC_AUTH_VENCRYPT_TLSNONE = 257, |
| 374 | VNC_AUTH_VENCRYPT_TLSVNC = 258, |
| 375 | VNC_AUTH_VENCRYPT_TLSPLAIN = 259, |
| 376 | VNC_AUTH_VENCRYPT_X509NONE = 260, |
| 377 | VNC_AUTH_VENCRYPT_X509VNC = 261, |
| 378 | VNC_AUTH_VENCRYPT_X509PLAIN = 262, |
aliguori | 2f9606b | 2009-03-06 20:27:28 +0000 | [diff] [blame] | 379 | VNC_AUTH_VENCRYPT_X509SASL = 263, |
| 380 | VNC_AUTH_VENCRYPT_TLSSASL = 264, |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 381 | }; |
| 382 | |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 383 | |
| 384 | /***************************************************************************** |
| 385 | * |
| 386 | * Encoding types |
| 387 | * |
| 388 | *****************************************************************************/ |
| 389 | |
| 390 | #define VNC_ENCODING_RAW 0x00000000 |
| 391 | #define VNC_ENCODING_COPYRECT 0x00000001 |
| 392 | #define VNC_ENCODING_RRE 0x00000002 |
| 393 | #define VNC_ENCODING_CORRE 0x00000004 |
| 394 | #define VNC_ENCODING_HEXTILE 0x00000005 |
| 395 | #define VNC_ENCODING_ZLIB 0x00000006 |
| 396 | #define VNC_ENCODING_TIGHT 0x00000007 |
| 397 | #define VNC_ENCODING_ZLIBHEX 0x00000008 |
| 398 | #define VNC_ENCODING_TRLE 0x0000000f |
| 399 | #define VNC_ENCODING_ZRLE 0x00000010 |
| 400 | #define VNC_ENCODING_ZYWRLE 0x00000011 |
| 401 | #define VNC_ENCODING_COMPRESSLEVEL0 0xFFFFFF00 /* -256 */ |
| 402 | #define VNC_ENCODING_QUALITYLEVEL0 0xFFFFFFE0 /* -32 */ |
| 403 | #define VNC_ENCODING_XCURSOR 0xFFFFFF10 /* -240 */ |
| 404 | #define VNC_ENCODING_RICH_CURSOR 0xFFFFFF11 /* -239 */ |
| 405 | #define VNC_ENCODING_POINTER_POS 0xFFFFFF18 /* -232 */ |
| 406 | #define VNC_ENCODING_LASTRECT 0xFFFFFF20 /* -224 */ |
| 407 | #define VNC_ENCODING_DESKTOPRESIZE 0xFFFFFF21 /* -223 */ |
| 408 | #define VNC_ENCODING_POINTER_TYPE_CHANGE 0XFFFFFEFF /* -257 */ |
| 409 | #define VNC_ENCODING_EXT_KEY_EVENT 0XFFFFFEFE /* -258 */ |
| 410 | #define VNC_ENCODING_AUDIO 0XFFFFFEFD /* -259 */ |
Corentin Chary | efe556a | 2010-07-07 20:57:56 +0200 | [diff] [blame] | 411 | #define VNC_ENCODING_TIGHT_PNG 0xFFFFFEFC /* -260 */ |
Lei Li | ab99e5c | 2013-04-25 13:29:10 +0800 | [diff] [blame] | 412 | #define VNC_ENCODING_LED_STATE 0XFFFFFEFB /* -261 */ |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 413 | #define VNC_ENCODING_WMVi 0x574D5669 |
| 414 | |
| 415 | /***************************************************************************** |
| 416 | * |
| 417 | * Other tight constants |
| 418 | * |
| 419 | *****************************************************************************/ |
| 420 | |
| 421 | /* |
| 422 | * Vendors known by TightVNC: standard VNC/RealVNC, TridiaVNC, and TightVNC. |
| 423 | */ |
| 424 | |
| 425 | #define VNC_TIGHT_CCB_RESET_MASK (0x0f) |
| 426 | #define VNC_TIGHT_CCB_TYPE_MASK (0x0f << 4) |
| 427 | #define VNC_TIGHT_CCB_TYPE_FILL (0x08 << 4) |
| 428 | #define VNC_TIGHT_CCB_TYPE_JPEG (0x09 << 4) |
Corentin Chary | efe556a | 2010-07-07 20:57:56 +0200 | [diff] [blame] | 429 | #define VNC_TIGHT_CCB_TYPE_PNG (0x0A << 4) |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 430 | #define VNC_TIGHT_CCB_BASIC_MAX (0x07 << 4) |
| 431 | #define VNC_TIGHT_CCB_BASIC_ZLIB (0x03 << 4) |
| 432 | #define VNC_TIGHT_CCB_BASIC_FILTER (0x04 << 4) |
| 433 | |
| 434 | /***************************************************************************** |
| 435 | * |
| 436 | * Features |
| 437 | * |
| 438 | *****************************************************************************/ |
| 439 | |
| 440 | #define VNC_FEATURE_RESIZE 0 |
| 441 | #define VNC_FEATURE_HEXTILE 1 |
| 442 | #define VNC_FEATURE_POINTER_TYPE_CHANGE 2 |
| 443 | #define VNC_FEATURE_WMVI 3 |
| 444 | #define VNC_FEATURE_TIGHT 4 |
| 445 | #define VNC_FEATURE_ZLIB 5 |
aliguori | 753b405 | 2009-02-16 14:59:30 +0000 | [diff] [blame] | 446 | #define VNC_FEATURE_COPYRECT 6 |
Gerd Hoffmann | d467b67 | 2010-05-21 11:54:34 +0200 | [diff] [blame] | 447 | #define VNC_FEATURE_RICH_CURSOR 7 |
Corentin Chary | efe556a | 2010-07-07 20:57:56 +0200 | [diff] [blame] | 448 | #define VNC_FEATURE_TIGHT_PNG 8 |
Corentin Chary | 148954f | 2011-02-04 09:06:01 +0100 | [diff] [blame] | 449 | #define VNC_FEATURE_ZRLE 9 |
| 450 | #define VNC_FEATURE_ZYWRLE 10 |
Lei Li | ab99e5c | 2013-04-25 13:29:10 +0800 | [diff] [blame] | 451 | #define VNC_FEATURE_LED_STATE 11 |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 452 | |
| 453 | #define VNC_FEATURE_RESIZE_MASK (1 << VNC_FEATURE_RESIZE) |
| 454 | #define VNC_FEATURE_HEXTILE_MASK (1 << VNC_FEATURE_HEXTILE) |
| 455 | #define VNC_FEATURE_POINTER_TYPE_CHANGE_MASK (1 << VNC_FEATURE_POINTER_TYPE_CHANGE) |
| 456 | #define VNC_FEATURE_WMVI_MASK (1 << VNC_FEATURE_WMVI) |
| 457 | #define VNC_FEATURE_TIGHT_MASK (1 << VNC_FEATURE_TIGHT) |
| 458 | #define VNC_FEATURE_ZLIB_MASK (1 << VNC_FEATURE_ZLIB) |
aliguori | 753b405 | 2009-02-16 14:59:30 +0000 | [diff] [blame] | 459 | #define VNC_FEATURE_COPYRECT_MASK (1 << VNC_FEATURE_COPYRECT) |
Gerd Hoffmann | d467b67 | 2010-05-21 11:54:34 +0200 | [diff] [blame] | 460 | #define VNC_FEATURE_RICH_CURSOR_MASK (1 << VNC_FEATURE_RICH_CURSOR) |
Corentin Chary | efe556a | 2010-07-07 20:57:56 +0200 | [diff] [blame] | 461 | #define VNC_FEATURE_TIGHT_PNG_MASK (1 << VNC_FEATURE_TIGHT_PNG) |
Corentin Chary | 148954f | 2011-02-04 09:06:01 +0100 | [diff] [blame] | 462 | #define VNC_FEATURE_ZRLE_MASK (1 << VNC_FEATURE_ZRLE) |
| 463 | #define VNC_FEATURE_ZYWRLE_MASK (1 << VNC_FEATURE_ZYWRLE) |
Lei Li | ab99e5c | 2013-04-25 13:29:10 +0800 | [diff] [blame] | 464 | #define VNC_FEATURE_LED_STATE_MASK (1 << VNC_FEATURE_LED_STATE) |
aliguori | e06679f | 2009-02-02 15:58:25 +0000 | [diff] [blame] | 465 | |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 466 | |
Daniel P. Berrange | 46a183d | 2010-03-31 18:20:43 +0100 | [diff] [blame] | 467 | /* Client -> Server message IDs */ |
| 468 | #define VNC_MSG_CLIENT_SET_PIXEL_FORMAT 0 |
| 469 | #define VNC_MSG_CLIENT_SET_ENCODINGS 2 |
| 470 | #define VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST 3 |
| 471 | #define VNC_MSG_CLIENT_KEY_EVENT 4 |
| 472 | #define VNC_MSG_CLIENT_POINTER_EVENT 5 |
| 473 | #define VNC_MSG_CLIENT_CUT_TEXT 6 |
| 474 | #define VNC_MSG_CLIENT_VMWARE_0 127 |
| 475 | #define VNC_MSG_CLIENT_CALL_CONTROL 249 |
| 476 | #define VNC_MSG_CLIENT_XVP 250 |
| 477 | #define VNC_MSG_CLIENT_SET_DESKTOP_SIZE 251 |
| 478 | #define VNC_MSG_CLIENT_TIGHT 252 |
| 479 | #define VNC_MSG_CLIENT_GII 253 |
| 480 | #define VNC_MSG_CLIENT_VMWARE_1 254 |
| 481 | #define VNC_MSG_CLIENT_QEMU 255 |
| 482 | |
| 483 | /* Server -> Client message IDs */ |
| 484 | #define VNC_MSG_SERVER_FRAMEBUFFER_UPDATE 0 |
| 485 | #define VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES 1 |
| 486 | #define VNC_MSG_SERVER_BELL 2 |
| 487 | #define VNC_MSG_SERVER_CUT_TEXT 3 |
| 488 | #define VNC_MSG_SERVER_VMWARE_0 127 |
| 489 | #define VNC_MSG_SERVER_CALL_CONTROL 249 |
| 490 | #define VNC_MSG_SERVER_XVP 250 |
| 491 | #define VNC_MSG_SERVER_TIGHT 252 |
| 492 | #define VNC_MSG_SERVER_GII 253 |
| 493 | #define VNC_MSG_SERVER_VMWARE_1 254 |
| 494 | #define VNC_MSG_SERVER_QEMU 255 |
| 495 | |
| 496 | |
| 497 | |
| 498 | /* QEMU client -> server message IDs */ |
| 499 | #define VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT 0 |
| 500 | #define VNC_MSG_CLIENT_QEMU_AUDIO 1 |
| 501 | |
| 502 | /* QEMU server -> client message IDs */ |
| 503 | #define VNC_MSG_SERVER_QEMU_AUDIO 1 |
| 504 | |
| 505 | |
| 506 | |
| 507 | /* QEMU client -> server audio message IDs */ |
| 508 | #define VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE 0 |
| 509 | #define VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE 1 |
| 510 | #define VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT 2 |
| 511 | |
| 512 | /* QEMU server -> client audio message IDs */ |
| 513 | #define VNC_MSG_SERVER_QEMU_AUDIO_END 0 |
| 514 | #define VNC_MSG_SERVER_QEMU_AUDIO_BEGIN 1 |
| 515 | #define VNC_MSG_SERVER_QEMU_AUDIO_DATA 2 |
| 516 | |
| 517 | |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 518 | /***************************************************************************** |
| 519 | * |
| 520 | * Internal APIs |
| 521 | * |
| 522 | *****************************************************************************/ |
| 523 | |
| 524 | /* Event loop functions */ |
Daniel P. Berrange | 04d2529 | 2015-02-27 16:20:57 +0000 | [diff] [blame] | 525 | gboolean vnc_client_io(QIOChannel *ioc, |
| 526 | GIOCondition condition, |
| 527 | void *opaque); |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 528 | |
Daniel P. Berrange | 30b80fd | 2017-12-18 19:12:28 +0000 | [diff] [blame] | 529 | size_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen); |
| 530 | size_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen); |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 531 | |
| 532 | /* Protocol I/O functions */ |
| 533 | void vnc_write(VncState *vs, const void *data, size_t len); |
| 534 | void vnc_write_u32(VncState *vs, uint32_t value); |
| 535 | void vnc_write_s32(VncState *vs, int32_t value); |
| 536 | void vnc_write_u16(VncState *vs, uint16_t value); |
| 537 | void vnc_write_u8(VncState *vs, uint8_t value); |
| 538 | void vnc_flush(VncState *vs); |
| 539 | void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting); |
Tim Hardeck | 7536ee4 | 2013-01-21 11:04:44 +0100 | [diff] [blame] | 540 | void vnc_disconnect_finish(VncState *vs); |
Daniel P. Berrange | dbee989 | 2016-09-29 16:45:40 +0100 | [diff] [blame] | 541 | void vnc_start_protocol(VncState *vs); |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 542 | |
| 543 | |
| 544 | /* Buffer I/O functions */ |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 545 | uint32_t read_u32(uint8_t *data, size_t offset); |
| 546 | |
| 547 | /* Protocol stage functions */ |
| 548 | void vnc_client_error(VncState *vs); |
Daniel P. Berrange | 30b80fd | 2017-12-18 19:12:28 +0000 | [diff] [blame] | 549 | size_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp); |
aliguori | 5fb6c7a | 2009-03-06 20:27:23 +0000 | [diff] [blame] | 550 | |
| 551 | void start_client_init(VncState *vs); |
| 552 | void start_auth_vnc(VncState *vs); |
| 553 | |
aliguori | 2f9606b | 2009-03-06 20:27:28 +0000 | [diff] [blame] | 554 | |
| 555 | /* Misc helpers */ |
| 556 | |
Corentin Chary | efe556a | 2010-07-07 20:57:56 +0200 | [diff] [blame] | 557 | static inline uint32_t vnc_has_feature(VncState *vs, int feature) { |
| 558 | return (vs->features & (1 << feature)); |
| 559 | } |
| 560 | |
Corentin Chary | 70a4568 | 2010-05-03 14:31:34 +0200 | [diff] [blame] | 561 | /* Framebuffer */ |
| 562 | void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, |
| 563 | int32_t encoding); |
| 564 | |
Gerd Hoffmann | 9f64916 | 2012-10-10 13:29:43 +0200 | [diff] [blame] | 565 | /* server fb is in PIXMAN_x8r8g8b8 */ |
| 566 | #define VNC_SERVER_FB_FORMAT PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8) |
| 567 | #define VNC_SERVER_FB_BITS (PIXMAN_FORMAT_BPP(VNC_SERVER_FB_FORMAT)) |
| 568 | #define VNC_SERVER_FB_BYTES ((VNC_SERVER_FB_BITS+7)/8) |
| 569 | |
| 570 | void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y); |
| 571 | int vnc_server_fb_stride(VncDisplay *vd); |
| 572 | |
Corentin Chary | 70a4568 | 2010-05-03 14:31:34 +0200 | [diff] [blame] | 573 | void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v); |
Corentin Chary | 999342a | 2011-02-04 09:05:55 +0100 | [diff] [blame] | 574 | double vnc_update_freq(VncState *vs, int x, int y, int w, int h); |
Corentin Chary | 7d964c9 | 2011-02-04 09:05:56 +0100 | [diff] [blame] | 575 | void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h); |
Corentin Chary | 70a4568 | 2010-05-03 14:31:34 +0200 | [diff] [blame] | 576 | |
| 577 | /* Encodings */ |
Corentin Chary | bd023f9 | 2010-07-07 20:58:02 +0200 | [diff] [blame] | 578 | int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| 579 | |
Corentin Chary | a885211 | 2010-05-19 09:24:09 +0200 | [diff] [blame] | 580 | int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
Corentin Chary | 70a4568 | 2010-05-03 14:31:34 +0200 | [diff] [blame] | 581 | |
Corentin Chary | a885211 | 2010-05-19 09:24:09 +0200 | [diff] [blame] | 582 | int vnc_hextile_send_framebuffer_update(VncState *vs, int x, |
Corentin Chary | 70a4568 | 2010-05-03 14:31:34 +0200 | [diff] [blame] | 583 | int y, int w, int h); |
| 584 | void vnc_hextile_set_pixel_conversion(VncState *vs, int generic); |
| 585 | |
Corentin Chary | 380282b | 2010-05-19 09:24:10 +0200 | [diff] [blame] | 586 | void *vnc_zlib_zalloc(void *x, unsigned items, unsigned size); |
| 587 | void vnc_zlib_zfree(void *x, void *addr); |
Corentin Chary | a885211 | 2010-05-19 09:24:09 +0200 | [diff] [blame] | 588 | int vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
Corentin Chary | 161c4f2 | 2010-05-19 09:24:08 +0200 | [diff] [blame] | 589 | void vnc_zlib_clear(VncState *vs); |
Corentin Chary | 70a4568 | 2010-05-03 14:31:34 +0200 | [diff] [blame] | 590 | |
Corentin Chary | 380282b | 2010-05-19 09:24:10 +0200 | [diff] [blame] | 591 | int vnc_tight_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
Corentin Chary | efe556a | 2010-07-07 20:57:56 +0200 | [diff] [blame] | 592 | int vnc_tight_png_send_framebuffer_update(VncState *vs, int x, int y, |
| 593 | int w, int h); |
Corentin Chary | 380282b | 2010-05-19 09:24:10 +0200 | [diff] [blame] | 594 | void vnc_tight_clear(VncState *vs); |
| 595 | |
Corentin Chary | 148954f | 2011-02-04 09:06:01 +0100 | [diff] [blame] | 596 | int vnc_zrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| 597 | int vnc_zywrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| 598 | void vnc_zrle_clear(VncState *vs); |
| 599 | |
Markus Armbruster | 2a6a407 | 2016-06-29 13:47:03 +0200 | [diff] [blame] | 600 | #endif /* QEMU_VNC_H */ |