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19a490bf AL |
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 | ||
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" | |
bc2429b9 | 38 | #include "bitmap.h" |
19a490bf | 39 | #include <zlib.h> |
6f9c78c1 | 40 | #include <stdbool.h> |
19a490bf | 41 | |
19a490bf | 42 | #include "keymaps.h" |
148954fa CC |
43 | #include "vnc-palette.h" |
44 | #include "vnc-enc-zrle.h" | |
19a490bf | 45 | |
5fb6c7a8 AL |
46 | // #define _VNC_DEBUG 1 |
47 | ||
48 | #ifdef _VNC_DEBUG | |
49 | #define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) | |
50 | #else | |
51 | #define VNC_DEBUG(fmt, ...) do { } while (0) | |
52 | #endif | |
53 | ||
19a490bf AL |
54 | /***************************************************************************** |
55 | * | |
56 | * Core data structures | |
57 | * | |
58 | *****************************************************************************/ | |
59 | ||
60 | typedef struct Buffer | |
61 | { | |
62 | size_t capacity; | |
63 | size_t offset; | |
64 | uint8_t *buffer; | |
65 | } Buffer; | |
66 | ||
67 | typedef struct VncState VncState; | |
bd023f95 CC |
68 | typedef struct VncJob VncJob; |
69 | typedef struct VncRect VncRect; | |
70 | typedef struct VncRectEntry VncRectEntry; | |
19a490bf AL |
71 | |
72 | typedef int VncReadEvent(VncState *vs, uint8_t *data, size_t len); | |
73 | ||
d467b679 | 74 | typedef void VncWritePixels(VncState *vs, struct PixelFormat *pf, void *data, int size); |
19a490bf AL |
75 | |
76 | typedef void VncSendHextileTile(VncState *vs, | |
77 | int x, int y, int w, int h, | |
78 | void *last_bg, | |
79 | void *last_fg, | |
80 | int *has_bg, int *has_fg); | |
81 | ||
3f54bfbf | 82 | #define VNC_MAX_WIDTH 2560 |
19a490bf | 83 | #define VNC_MAX_HEIGHT 2048 |
bc2429b9 | 84 | #define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * BITS_PER_LONG)) |
19a490bf | 85 | |
999342a0 CC |
86 | #define VNC_STAT_RECT 64 |
87 | #define VNC_STAT_COLS (VNC_MAX_WIDTH / VNC_STAT_RECT) | |
88 | #define VNC_STAT_ROWS (VNC_MAX_HEIGHT / VNC_STAT_RECT) | |
89 | ||
19a490bf AL |
90 | #define VNC_AUTH_CHALLENGE_SIZE 16 |
91 | ||
92 | typedef struct VncDisplay VncDisplay; | |
93 | ||
5fb6c7a8 AL |
94 | #ifdef CONFIG_VNC_TLS |
95 | #include "vnc-tls.h" | |
96 | #include "vnc-auth-vencrypt.h" | |
97 | #endif | |
2f9606b3 AL |
98 | #ifdef CONFIG_VNC_SASL |
99 | #include "vnc-auth-sasl.h" | |
100 | #endif | |
101 | ||
999342a0 CC |
102 | struct VncRectStat |
103 | { | |
104 | /* time of last 10 updates, to find update frequency */ | |
105 | struct timeval times[10]; | |
106 | int idx; | |
107 | ||
108 | double freq; /* Update frequency (in Hz) */ | |
109 | bool updated; /* Already updated during this refresh */ | |
110 | }; | |
111 | ||
112 | typedef struct VncRectStat VncRectStat; | |
113 | ||
1fc62412 SS |
114 | struct VncSurface |
115 | { | |
999342a0 | 116 | struct timeval last_freq_check; |
bc2429b9 | 117 | unsigned long dirty[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS]; |
999342a0 | 118 | VncRectStat stats[VNC_STAT_ROWS][VNC_STAT_COLS]; |
1fc62412 SS |
119 | DisplaySurface *ds; |
120 | }; | |
5fb6c7a8 | 121 | |
19a490bf AL |
122 | struct VncDisplay |
123 | { | |
41b4bef6 | 124 | QTAILQ_HEAD(, VncState) clients; |
703bc68f | 125 | QEMUTimer *timer; |
2430ffe4 | 126 | int timer_interval; |
19a490bf AL |
127 | int lsock; |
128 | DisplayState *ds; | |
c227f099 | 129 | kbd_layout_t *kbd_layout; |
3a0558b5 | 130 | int lock_key_sync; |
bd023f95 CC |
131 | #ifdef CONFIG_VNC_THREAD |
132 | QemuMutex mutex; | |
133 | #endif | |
19a490bf | 134 | |
d467b679 GH |
135 | QEMUCursor *cursor; |
136 | int cursor_msize; | |
137 | uint8_t *cursor_mask; | |
138 | ||
1fc62412 SS |
139 | struct VncSurface guest; /* guest visible surface (aka ds->surface) */ |
140 | DisplaySurface *server; /* vnc server surface */ | |
141 | ||
19a490bf AL |
142 | char *display; |
143 | char *password; | |
3c9405a0 | 144 | time_t expires; |
19a490bf | 145 | int auth; |
6f9c78c1 | 146 | bool lossy; |
19a490bf | 147 | #ifdef CONFIG_VNC_TLS |
5fb6c7a8 AL |
148 | int subauth; /* Used by VeNCrypt */ |
149 | VncDisplayTLS tls; | |
19a490bf | 150 | #endif |
76655d6d AL |
151 | #ifdef CONFIG_VNC_SASL |
152 | VncDisplaySASL sasl; | |
153 | #endif | |
19a490bf AL |
154 | }; |
155 | ||
d1af0e05 CC |
156 | typedef struct VncTight { |
157 | int type; | |
158 | uint8_t quality; | |
159 | uint8_t compression; | |
160 | uint8_t pixel24; | |
161 | Buffer tight; | |
162 | Buffer tmp; | |
163 | Buffer zlib; | |
164 | Buffer gradient; | |
165 | #ifdef CONFIG_VNC_JPEG | |
166 | Buffer jpeg; | |
167 | #endif | |
168 | #ifdef CONFIG_VNC_PNG | |
169 | Buffer png; | |
170 | #endif | |
171 | int levels[4]; | |
172 | z_stream stream[4]; | |
173 | } VncTight; | |
174 | ||
175 | typedef struct VncHextile { | |
176 | VncSendHextileTile *send_tile; | |
177 | } VncHextile; | |
178 | ||
179 | typedef struct VncZlib { | |
180 | Buffer zlib; | |
181 | Buffer tmp; | |
182 | z_stream stream; | |
183 | int level; | |
184 | } VncZlib; | |
185 | ||
148954fa CC |
186 | typedef struct VncZrle { |
187 | int type; | |
188 | Buffer fb; | |
189 | Buffer zrle; | |
190 | Buffer tmp; | |
191 | Buffer zlib; | |
192 | z_stream stream; | |
193 | VncPalette palette; | |
194 | } VncZrle; | |
195 | ||
196 | typedef struct VncZywrle { | |
197 | int buf[VNC_ZRLE_TILE_WIDTH * VNC_ZRLE_TILE_HEIGHT]; | |
198 | } VncZywrle; | |
199 | ||
bd023f95 CC |
200 | #ifdef CONFIG_VNC_THREAD |
201 | struct VncRect | |
202 | { | |
203 | int x; | |
204 | int y; | |
205 | int w; | |
206 | int h; | |
207 | }; | |
208 | ||
209 | struct VncRectEntry | |
210 | { | |
211 | struct VncRect rect; | |
212 | QLIST_ENTRY(VncRectEntry) next; | |
213 | }; | |
214 | ||
215 | struct VncJob | |
216 | { | |
217 | VncState *vs; | |
218 | ||
219 | QLIST_HEAD(, VncRectEntry) rectangles; | |
220 | QTAILQ_ENTRY(VncJob) next; | |
221 | }; | |
222 | #else | |
223 | struct VncJob | |
224 | { | |
225 | VncState *vs; | |
226 | int rectangles; | |
227 | size_t saved_offset; | |
228 | }; | |
229 | #endif | |
230 | ||
19a490bf AL |
231 | struct VncState |
232 | { | |
19a490bf | 233 | int csock; |
6baebed7 | 234 | |
19a490bf | 235 | DisplayState *ds; |
bc2429b9 | 236 | unsigned long dirty[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS]; |
7d964c9d CC |
237 | uint8_t **lossy_rect; /* Not an Array to avoid costly memcpy in |
238 | * vnc-jobs-async.c */ | |
6baebed7 | 239 | |
19a490bf AL |
240 | VncDisplay *vd; |
241 | int need_update; | |
c522d0e2 | 242 | int force_update; |
19a490bf AL |
243 | uint32_t features; |
244 | int absolute; | |
245 | int last_x; | |
246 | int last_y; | |
5862d195 GH |
247 | int client_width; |
248 | int client_height; | |
19a490bf AL |
249 | |
250 | uint32_t vnc_encoding; | |
19a490bf AL |
251 | |
252 | int major; | |
253 | int minor; | |
254 | ||
255 | char challenge[VNC_AUTH_CHALLENGE_SIZE]; | |
19a490bf | 256 | #ifdef CONFIG_VNC_TLS |
5fb6c7a8 | 257 | VncStateTLS tls; |
19a490bf | 258 | #endif |
2f9606b3 AL |
259 | #ifdef CONFIG_VNC_SASL |
260 | VncStateSASL sasl; | |
261 | #endif | |
19a490bf | 262 | |
4a80dba3 LC |
263 | QObject *info; |
264 | ||
19a490bf AL |
265 | Buffer output; |
266 | Buffer input; | |
267 | /* current output mode information */ | |
268 | VncWritePixels *write_pixels; | |
6baebed7 | 269 | DisplaySurface clientds; |
19a490bf AL |
270 | |
271 | CaptureVoiceOut *audio_cap; | |
272 | struct audsettings as; | |
273 | ||
274 | VncReadEvent *read_handler; | |
275 | size_t read_handler_expect; | |
276 | /* input */ | |
277 | uint8_t modifiers_state[256]; | |
7ffb82ca | 278 | QEMUPutLEDEntry *led; |
19a490bf | 279 | |
bd023f95 CC |
280 | bool abort; |
281 | #ifndef CONFIG_VNC_THREAD | |
282 | VncJob job; | |
283 | #else | |
284 | QemuMutex output_mutex; | |
285 | #endif | |
286 | ||
287 | /* Encoding specific, if you add something here, don't forget to | |
288 | * update vnc_async_encoding_start() | |
289 | */ | |
d1af0e05 CC |
290 | VncTight tight; |
291 | VncZlib zlib; | |
292 | VncHextile hextile; | |
148954fa CC |
293 | VncZrle zrle; |
294 | VncZywrle zywrle; | |
19a490bf | 295 | |
37c34d9d AL |
296 | Notifier mouse_mode_notifier; |
297 | ||
41b4bef6 | 298 | QTAILQ_ENTRY(VncState) next; |
19a490bf AL |
299 | }; |
300 | ||
e06679fb AL |
301 | |
302 | /***************************************************************************** | |
303 | * | |
304 | * Authentication modes | |
305 | * | |
306 | *****************************************************************************/ | |
307 | ||
308 | enum { | |
309 | VNC_AUTH_INVALID = 0, | |
310 | VNC_AUTH_NONE = 1, | |
311 | VNC_AUTH_VNC = 2, | |
312 | VNC_AUTH_RA2 = 5, | |
313 | VNC_AUTH_RA2NE = 6, | |
314 | VNC_AUTH_TIGHT = 16, | |
315 | VNC_AUTH_ULTRA = 17, | |
2f9606b3 AL |
316 | VNC_AUTH_TLS = 18, /* Supported in GTK-VNC & VINO */ |
317 | VNC_AUTH_VENCRYPT = 19, /* Supported in GTK-VNC & VeNCrypt */ | |
318 | VNC_AUTH_SASL = 20, /* Supported in GTK-VNC & VINO */ | |
e06679fb AL |
319 | }; |
320 | ||
e06679fb AL |
321 | enum { |
322 | VNC_AUTH_VENCRYPT_PLAIN = 256, | |
323 | VNC_AUTH_VENCRYPT_TLSNONE = 257, | |
324 | VNC_AUTH_VENCRYPT_TLSVNC = 258, | |
325 | VNC_AUTH_VENCRYPT_TLSPLAIN = 259, | |
326 | VNC_AUTH_VENCRYPT_X509NONE = 260, | |
327 | VNC_AUTH_VENCRYPT_X509VNC = 261, | |
328 | VNC_AUTH_VENCRYPT_X509PLAIN = 262, | |
2f9606b3 AL |
329 | VNC_AUTH_VENCRYPT_X509SASL = 263, |
330 | VNC_AUTH_VENCRYPT_TLSSASL = 264, | |
e06679fb AL |
331 | }; |
332 | ||
e06679fb AL |
333 | |
334 | /***************************************************************************** | |
335 | * | |
336 | * Encoding types | |
337 | * | |
338 | *****************************************************************************/ | |
339 | ||
340 | #define VNC_ENCODING_RAW 0x00000000 | |
341 | #define VNC_ENCODING_COPYRECT 0x00000001 | |
342 | #define VNC_ENCODING_RRE 0x00000002 | |
343 | #define VNC_ENCODING_CORRE 0x00000004 | |
344 | #define VNC_ENCODING_HEXTILE 0x00000005 | |
345 | #define VNC_ENCODING_ZLIB 0x00000006 | |
346 | #define VNC_ENCODING_TIGHT 0x00000007 | |
347 | #define VNC_ENCODING_ZLIBHEX 0x00000008 | |
348 | #define VNC_ENCODING_TRLE 0x0000000f | |
349 | #define VNC_ENCODING_ZRLE 0x00000010 | |
350 | #define VNC_ENCODING_ZYWRLE 0x00000011 | |
351 | #define VNC_ENCODING_COMPRESSLEVEL0 0xFFFFFF00 /* -256 */ | |
352 | #define VNC_ENCODING_QUALITYLEVEL0 0xFFFFFFE0 /* -32 */ | |
353 | #define VNC_ENCODING_XCURSOR 0xFFFFFF10 /* -240 */ | |
354 | #define VNC_ENCODING_RICH_CURSOR 0xFFFFFF11 /* -239 */ | |
355 | #define VNC_ENCODING_POINTER_POS 0xFFFFFF18 /* -232 */ | |
356 | #define VNC_ENCODING_LASTRECT 0xFFFFFF20 /* -224 */ | |
357 | #define VNC_ENCODING_DESKTOPRESIZE 0xFFFFFF21 /* -223 */ | |
358 | #define VNC_ENCODING_POINTER_TYPE_CHANGE 0XFFFFFEFF /* -257 */ | |
359 | #define VNC_ENCODING_EXT_KEY_EVENT 0XFFFFFEFE /* -258 */ | |
360 | #define VNC_ENCODING_AUDIO 0XFFFFFEFD /* -259 */ | |
efe556ad | 361 | #define VNC_ENCODING_TIGHT_PNG 0xFFFFFEFC /* -260 */ |
e06679fb AL |
362 | #define VNC_ENCODING_WMVi 0x574D5669 |
363 | ||
364 | /***************************************************************************** | |
365 | * | |
366 | * Other tight constants | |
367 | * | |
368 | *****************************************************************************/ | |
369 | ||
370 | /* | |
371 | * Vendors known by TightVNC: standard VNC/RealVNC, TridiaVNC, and TightVNC. | |
372 | */ | |
373 | ||
374 | #define VNC_TIGHT_CCB_RESET_MASK (0x0f) | |
375 | #define VNC_TIGHT_CCB_TYPE_MASK (0x0f << 4) | |
376 | #define VNC_TIGHT_CCB_TYPE_FILL (0x08 << 4) | |
377 | #define VNC_TIGHT_CCB_TYPE_JPEG (0x09 << 4) | |
efe556ad | 378 | #define VNC_TIGHT_CCB_TYPE_PNG (0x0A << 4) |
e06679fb AL |
379 | #define VNC_TIGHT_CCB_BASIC_MAX (0x07 << 4) |
380 | #define VNC_TIGHT_CCB_BASIC_ZLIB (0x03 << 4) | |
381 | #define VNC_TIGHT_CCB_BASIC_FILTER (0x04 << 4) | |
382 | ||
383 | /***************************************************************************** | |
384 | * | |
385 | * Features | |
386 | * | |
387 | *****************************************************************************/ | |
388 | ||
389 | #define VNC_FEATURE_RESIZE 0 | |
390 | #define VNC_FEATURE_HEXTILE 1 | |
391 | #define VNC_FEATURE_POINTER_TYPE_CHANGE 2 | |
392 | #define VNC_FEATURE_WMVI 3 | |
393 | #define VNC_FEATURE_TIGHT 4 | |
394 | #define VNC_FEATURE_ZLIB 5 | |
753b4053 | 395 | #define VNC_FEATURE_COPYRECT 6 |
d467b679 | 396 | #define VNC_FEATURE_RICH_CURSOR 7 |
efe556ad | 397 | #define VNC_FEATURE_TIGHT_PNG 8 |
148954fa CC |
398 | #define VNC_FEATURE_ZRLE 9 |
399 | #define VNC_FEATURE_ZYWRLE 10 | |
e06679fb AL |
400 | |
401 | #define VNC_FEATURE_RESIZE_MASK (1 << VNC_FEATURE_RESIZE) | |
402 | #define VNC_FEATURE_HEXTILE_MASK (1 << VNC_FEATURE_HEXTILE) | |
403 | #define VNC_FEATURE_POINTER_TYPE_CHANGE_MASK (1 << VNC_FEATURE_POINTER_TYPE_CHANGE) | |
404 | #define VNC_FEATURE_WMVI_MASK (1 << VNC_FEATURE_WMVI) | |
405 | #define VNC_FEATURE_TIGHT_MASK (1 << VNC_FEATURE_TIGHT) | |
406 | #define VNC_FEATURE_ZLIB_MASK (1 << VNC_FEATURE_ZLIB) | |
753b4053 | 407 | #define VNC_FEATURE_COPYRECT_MASK (1 << VNC_FEATURE_COPYRECT) |
d467b679 | 408 | #define VNC_FEATURE_RICH_CURSOR_MASK (1 << VNC_FEATURE_RICH_CURSOR) |
efe556ad | 409 | #define VNC_FEATURE_TIGHT_PNG_MASK (1 << VNC_FEATURE_TIGHT_PNG) |
148954fa CC |
410 | #define VNC_FEATURE_ZRLE_MASK (1 << VNC_FEATURE_ZRLE) |
411 | #define VNC_FEATURE_ZYWRLE_MASK (1 << VNC_FEATURE_ZYWRLE) | |
e06679fb | 412 | |
5fb6c7a8 | 413 | |
46a183da DB |
414 | /* Client -> Server message IDs */ |
415 | #define VNC_MSG_CLIENT_SET_PIXEL_FORMAT 0 | |
416 | #define VNC_MSG_CLIENT_SET_ENCODINGS 2 | |
417 | #define VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST 3 | |
418 | #define VNC_MSG_CLIENT_KEY_EVENT 4 | |
419 | #define VNC_MSG_CLIENT_POINTER_EVENT 5 | |
420 | #define VNC_MSG_CLIENT_CUT_TEXT 6 | |
421 | #define VNC_MSG_CLIENT_VMWARE_0 127 | |
422 | #define VNC_MSG_CLIENT_CALL_CONTROL 249 | |
423 | #define VNC_MSG_CLIENT_XVP 250 | |
424 | #define VNC_MSG_CLIENT_SET_DESKTOP_SIZE 251 | |
425 | #define VNC_MSG_CLIENT_TIGHT 252 | |
426 | #define VNC_MSG_CLIENT_GII 253 | |
427 | #define VNC_MSG_CLIENT_VMWARE_1 254 | |
428 | #define VNC_MSG_CLIENT_QEMU 255 | |
429 | ||
430 | /* Server -> Client message IDs */ | |
431 | #define VNC_MSG_SERVER_FRAMEBUFFER_UPDATE 0 | |
432 | #define VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES 1 | |
433 | #define VNC_MSG_SERVER_BELL 2 | |
434 | #define VNC_MSG_SERVER_CUT_TEXT 3 | |
435 | #define VNC_MSG_SERVER_VMWARE_0 127 | |
436 | #define VNC_MSG_SERVER_CALL_CONTROL 249 | |
437 | #define VNC_MSG_SERVER_XVP 250 | |
438 | #define VNC_MSG_SERVER_TIGHT 252 | |
439 | #define VNC_MSG_SERVER_GII 253 | |
440 | #define VNC_MSG_SERVER_VMWARE_1 254 | |
441 | #define VNC_MSG_SERVER_QEMU 255 | |
442 | ||
443 | ||
444 | ||
445 | /* QEMU client -> server message IDs */ | |
446 | #define VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT 0 | |
447 | #define VNC_MSG_CLIENT_QEMU_AUDIO 1 | |
448 | ||
449 | /* QEMU server -> client message IDs */ | |
450 | #define VNC_MSG_SERVER_QEMU_AUDIO 1 | |
451 | ||
452 | ||
453 | ||
454 | /* QEMU client -> server audio message IDs */ | |
455 | #define VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE 0 | |
456 | #define VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE 1 | |
457 | #define VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT 2 | |
458 | ||
459 | /* QEMU server -> client audio message IDs */ | |
460 | #define VNC_MSG_SERVER_QEMU_AUDIO_END 0 | |
461 | #define VNC_MSG_SERVER_QEMU_AUDIO_BEGIN 1 | |
462 | #define VNC_MSG_SERVER_QEMU_AUDIO_DATA 2 | |
463 | ||
464 | ||
5fb6c7a8 AL |
465 | /***************************************************************************** |
466 | * | |
467 | * Internal APIs | |
468 | * | |
469 | *****************************************************************************/ | |
470 | ||
471 | /* Event loop functions */ | |
472 | void vnc_client_read(void *opaque); | |
473 | void vnc_client_write(void *opaque); | |
474 | ||
2f9606b3 AL |
475 | long vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen); |
476 | long vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen); | |
5fb6c7a8 AL |
477 | |
478 | /* Protocol I/O functions */ | |
479 | void vnc_write(VncState *vs, const void *data, size_t len); | |
480 | void vnc_write_u32(VncState *vs, uint32_t value); | |
481 | void vnc_write_s32(VncState *vs, int32_t value); | |
482 | void vnc_write_u16(VncState *vs, uint16_t value); | |
483 | void vnc_write_u8(VncState *vs, uint8_t value); | |
484 | void vnc_flush(VncState *vs); | |
485 | void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting); | |
486 | ||
487 | ||
488 | /* Buffer I/O functions */ | |
489 | uint8_t read_u8(uint8_t *data, size_t offset); | |
490 | uint16_t read_u16(uint8_t *data, size_t offset); | |
491 | int32_t read_s32(uint8_t *data, size_t offset); | |
492 | uint32_t read_u32(uint8_t *data, size_t offset); | |
493 | ||
494 | /* Protocol stage functions */ | |
495 | void vnc_client_error(VncState *vs); | |
2f9606b3 | 496 | int vnc_client_io_error(VncState *vs, int ret, int last_errno); |
5fb6c7a8 AL |
497 | |
498 | void start_client_init(VncState *vs); | |
499 | void start_auth_vnc(VncState *vs); | |
500 | ||
2f9606b3 AL |
501 | /* Buffer management */ |
502 | void buffer_reserve(Buffer *buffer, size_t len); | |
503 | int buffer_empty(Buffer *buffer); | |
504 | uint8_t *buffer_end(Buffer *buffer); | |
505 | void buffer_reset(Buffer *buffer); | |
5d418e3b | 506 | void buffer_free(Buffer *buffer); |
2f9606b3 AL |
507 | void buffer_append(Buffer *buffer, const void *data, size_t len); |
508 | ||
509 | ||
510 | /* Misc helpers */ | |
511 | ||
512 | char *vnc_socket_local_addr(const char *format, int fd); | |
513 | char *vnc_socket_remote_addr(const char *format, int fd); | |
514 | ||
efe556ad CC |
515 | static inline uint32_t vnc_has_feature(VncState *vs, int feature) { |
516 | return (vs->features & (1 << feature)); | |
517 | } | |
518 | ||
70a4568f CC |
519 | /* Framebuffer */ |
520 | void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, | |
521 | int32_t encoding); | |
522 | ||
523 | void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v); | |
999342a0 | 524 | double vnc_update_freq(VncState *vs, int x, int y, int w, int h); |
7d964c9d | 525 | void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h); |
70a4568f CC |
526 | |
527 | /* Encodings */ | |
bd023f95 CC |
528 | int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
529 | ||
a885211e | 530 | int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
70a4568f | 531 | |
a885211e | 532 | int vnc_hextile_send_framebuffer_update(VncState *vs, int x, |
70a4568f CC |
533 | int y, int w, int h); |
534 | void vnc_hextile_set_pixel_conversion(VncState *vs, int generic); | |
535 | ||
380282b0 CC |
536 | void *vnc_zlib_zalloc(void *x, unsigned items, unsigned size); |
537 | void vnc_zlib_zfree(void *x, void *addr); | |
a885211e | 538 | int vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
161c4f20 | 539 | void vnc_zlib_clear(VncState *vs); |
70a4568f | 540 | |
380282b0 | 541 | int vnc_tight_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
efe556ad CC |
542 | int vnc_tight_png_send_framebuffer_update(VncState *vs, int x, int y, |
543 | int w, int h); | |
380282b0 CC |
544 | void vnc_tight_clear(VncState *vs); |
545 | ||
148954fa CC |
546 | int vnc_zrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
547 | int vnc_zywrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); | |
548 | void vnc_zrle_clear(VncState *vs); | |
549 | ||
19a490bf | 550 | #endif /* __QEMU_VNC_H */ |