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Commit | Line | Data |
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7d510b8c FB |
1 | /* |
2 | * QEMU VNC display driver | |
5fafdf24 | 3 | * |
7d510b8c FB |
4 | * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws> |
5 | * Copyright (C) 2006 Fabrice Bellard | |
19a490bf | 6 | * Copyright (C) 2009 Red Hat, Inc |
5fafdf24 | 7 | * |
7d510b8c FB |
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 | ||
19a490bf | 27 | #include "vnc.h" |
bd023f95 | 28 | #include "vnc-jobs.h" |
87ecb68b | 29 | #include "sysemu.h" |
6ca957f0 | 30 | #include "qemu_socket.h" |
87ecb68b | 31 | #include "qemu-timer.h" |
76655d6d | 32 | #include "acl.h" |
d96fd29c | 33 | #include "qemu-objects.h" |
24236869 | 34 | |
2430ffe4 SS |
35 | #define VNC_REFRESH_INTERVAL_BASE 30 |
36 | #define VNC_REFRESH_INTERVAL_INC 50 | |
37 | #define VNC_REFRESH_INTERVAL_MAX 2000 | |
999342a0 CC |
38 | static const struct timeval VNC_REFRESH_STATS = { 0, 500000 }; |
39 | static const struct timeval VNC_REFRESH_LOSSY = { 2, 0 }; | |
24236869 FB |
40 | |
41 | #include "vnc_keysym.h" | |
70848515 TS |
42 | #include "d3des.h" |
43 | ||
90a1e3c0 AL |
44 | #define count_bits(c, v) { \ |
45 | for (c = 0; v; v >>= 1) \ | |
46 | { \ | |
47 | c += v & 1; \ | |
48 | } \ | |
49 | } | |
8d5d2d4c | 50 | |
753b4053 | 51 | static VncDisplay *vnc_display; /* needed for info vnc */ |
7d957bd8 | 52 | static DisplayChangeListener *dcl; |
a9ce8590 | 53 | |
d467b679 GH |
54 | static int vnc_cursor_define(VncState *vs); |
55 | ||
1ff7df1a AL |
56 | static char *addr_to_string(const char *format, |
57 | struct sockaddr_storage *sa, | |
58 | socklen_t salen) { | |
59 | char *addr; | |
60 | char host[NI_MAXHOST]; | |
61 | char serv[NI_MAXSERV]; | |
62 | int err; | |
457772e6 | 63 | size_t addrlen; |
1ff7df1a AL |
64 | |
65 | if ((err = getnameinfo((struct sockaddr *)sa, salen, | |
66 | host, sizeof(host), | |
67 | serv, sizeof(serv), | |
68 | NI_NUMERICHOST | NI_NUMERICSERV)) != 0) { | |
69 | VNC_DEBUG("Cannot resolve address %d: %s\n", | |
70 | err, gai_strerror(err)); | |
71 | return NULL; | |
72 | } | |
73 | ||
457772e6 | 74 | /* Enough for the existing format + the 2 vars we're |
f425c278 | 75 | * substituting in. */ |
457772e6 AL |
76 | addrlen = strlen(format) + strlen(host) + strlen(serv); |
77 | addr = qemu_malloc(addrlen + 1); | |
78 | snprintf(addr, addrlen, format, host, serv); | |
79 | addr[addrlen] = '\0'; | |
1ff7df1a AL |
80 | |
81 | return addr; | |
82 | } | |
83 | ||
2f9606b3 AL |
84 | |
85 | char *vnc_socket_local_addr(const char *format, int fd) { | |
1ff7df1a AL |
86 | struct sockaddr_storage sa; |
87 | socklen_t salen; | |
88 | ||
89 | salen = sizeof(sa); | |
90 | if (getsockname(fd, (struct sockaddr*)&sa, &salen) < 0) | |
91 | return NULL; | |
92 | ||
93 | return addr_to_string(format, &sa, salen); | |
94 | } | |
95 | ||
2f9606b3 | 96 | char *vnc_socket_remote_addr(const char *format, int fd) { |
1ff7df1a AL |
97 | struct sockaddr_storage sa; |
98 | socklen_t salen; | |
99 | ||
100 | salen = sizeof(sa); | |
101 | if (getpeername(fd, (struct sockaddr*)&sa, &salen) < 0) | |
102 | return NULL; | |
103 | ||
104 | return addr_to_string(format, &sa, salen); | |
105 | } | |
106 | ||
d96fd29c LC |
107 | static int put_addr_qdict(QDict *qdict, struct sockaddr_storage *sa, |
108 | socklen_t salen) | |
109 | { | |
110 | char host[NI_MAXHOST]; | |
111 | char serv[NI_MAXSERV]; | |
112 | int err; | |
113 | ||
114 | if ((err = getnameinfo((struct sockaddr *)sa, salen, | |
115 | host, sizeof(host), | |
116 | serv, sizeof(serv), | |
117 | NI_NUMERICHOST | NI_NUMERICSERV)) != 0) { | |
118 | VNC_DEBUG("Cannot resolve address %d: %s\n", | |
119 | err, gai_strerror(err)); | |
120 | return -1; | |
121 | } | |
122 | ||
123 | qdict_put(qdict, "host", qstring_from_str(host)); | |
124 | qdict_put(qdict, "service", qstring_from_str(serv)); | |
dc0d4efc | 125 | qdict_put(qdict, "family",qstring_from_str(inet_strfamily(sa->ss_family))); |
d96fd29c LC |
126 | |
127 | return 0; | |
128 | } | |
129 | ||
a7789382 | 130 | static int vnc_server_addr_put(QDict *qdict, int fd) |
d96fd29c LC |
131 | { |
132 | struct sockaddr_storage sa; | |
133 | socklen_t salen; | |
134 | ||
135 | salen = sizeof(sa); | |
136 | if (getsockname(fd, (struct sockaddr*)&sa, &salen) < 0) { | |
137 | return -1; | |
138 | } | |
139 | ||
140 | return put_addr_qdict(qdict, &sa, salen); | |
141 | } | |
142 | ||
143 | static int vnc_qdict_remote_addr(QDict *qdict, int fd) | |
144 | { | |
145 | struct sockaddr_storage sa; | |
146 | socklen_t salen; | |
147 | ||
148 | salen = sizeof(sa); | |
149 | if (getpeername(fd, (struct sockaddr*)&sa, &salen) < 0) { | |
150 | return -1; | |
151 | } | |
152 | ||
153 | return put_addr_qdict(qdict, &sa, salen); | |
154 | } | |
155 | ||
1ff7df1a AL |
156 | static const char *vnc_auth_name(VncDisplay *vd) { |
157 | switch (vd->auth) { | |
158 | case VNC_AUTH_INVALID: | |
159 | return "invalid"; | |
160 | case VNC_AUTH_NONE: | |
161 | return "none"; | |
162 | case VNC_AUTH_VNC: | |
163 | return "vnc"; | |
164 | case VNC_AUTH_RA2: | |
165 | return "ra2"; | |
166 | case VNC_AUTH_RA2NE: | |
167 | return "ra2ne"; | |
168 | case VNC_AUTH_TIGHT: | |
169 | return "tight"; | |
170 | case VNC_AUTH_ULTRA: | |
171 | return "ultra"; | |
172 | case VNC_AUTH_TLS: | |
173 | return "tls"; | |
174 | case VNC_AUTH_VENCRYPT: | |
175 | #ifdef CONFIG_VNC_TLS | |
176 | switch (vd->subauth) { | |
177 | case VNC_AUTH_VENCRYPT_PLAIN: | |
178 | return "vencrypt+plain"; | |
179 | case VNC_AUTH_VENCRYPT_TLSNONE: | |
180 | return "vencrypt+tls+none"; | |
181 | case VNC_AUTH_VENCRYPT_TLSVNC: | |
182 | return "vencrypt+tls+vnc"; | |
183 | case VNC_AUTH_VENCRYPT_TLSPLAIN: | |
184 | return "vencrypt+tls+plain"; | |
185 | case VNC_AUTH_VENCRYPT_X509NONE: | |
186 | return "vencrypt+x509+none"; | |
187 | case VNC_AUTH_VENCRYPT_X509VNC: | |
188 | return "vencrypt+x509+vnc"; | |
189 | case VNC_AUTH_VENCRYPT_X509PLAIN: | |
190 | return "vencrypt+x509+plain"; | |
28a76be8 AL |
191 | case VNC_AUTH_VENCRYPT_TLSSASL: |
192 | return "vencrypt+tls+sasl"; | |
193 | case VNC_AUTH_VENCRYPT_X509SASL: | |
194 | return "vencrypt+x509+sasl"; | |
1ff7df1a AL |
195 | default: |
196 | return "vencrypt"; | |
197 | } | |
198 | #else | |
199 | return "vencrypt"; | |
200 | #endif | |
2f9606b3 | 201 | case VNC_AUTH_SASL: |
28a76be8 | 202 | return "sasl"; |
1ff7df1a AL |
203 | } |
204 | return "unknown"; | |
205 | } | |
206 | ||
a7789382 LC |
207 | static int vnc_server_info_put(QDict *qdict) |
208 | { | |
209 | if (vnc_server_addr_put(qdict, vnc_display->lsock) < 0) { | |
210 | return -1; | |
211 | } | |
212 | ||
213 | qdict_put(qdict, "auth", qstring_from_str(vnc_auth_name(vnc_display))); | |
214 | return 0; | |
215 | } | |
216 | ||
4a80dba3 | 217 | static void vnc_client_cache_auth(VncState *client) |
1ff7df1a | 218 | { |
2ded6ad7 | 219 | #if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL) |
d96fd29c | 220 | QDict *qdict; |
2ded6ad7 | 221 | #endif |
1ff7df1a | 222 | |
4a80dba3 LC |
223 | if (!client->info) { |
224 | return; | |
d96fd29c | 225 | } |
1263b7d6 | 226 | |
2ded6ad7 | 227 | #if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL) |
4a80dba3 | 228 | qdict = qobject_to_qdict(client->info); |
2ded6ad7 | 229 | #endif |
4a80dba3 | 230 | |
1263b7d6 AL |
231 | #ifdef CONFIG_VNC_TLS |
232 | if (client->tls.session && | |
d96fd29c LC |
233 | client->tls.dname) { |
234 | qdict_put(qdict, "x509_dname", qstring_from_str(client->tls.dname)); | |
235 | } | |
1263b7d6 AL |
236 | #endif |
237 | #ifdef CONFIG_VNC_SASL | |
238 | if (client->sasl.conn && | |
d96fd29c | 239 | client->sasl.username) { |
76825067 LC |
240 | qdict_put(qdict, "sasl_username", |
241 | qstring_from_str(client->sasl.username)); | |
d96fd29c | 242 | } |
1263b7d6 | 243 | #endif |
4a80dba3 | 244 | } |
d96fd29c | 245 | |
4a80dba3 LC |
246 | static void vnc_client_cache_addr(VncState *client) |
247 | { | |
248 | QDict *qdict; | |
249 | ||
250 | qdict = qdict_new(); | |
251 | if (vnc_qdict_remote_addr(qdict, client->csock) < 0) { | |
252 | QDECREF(qdict); | |
253 | /* XXX: how to report the error? */ | |
254 | return; | |
255 | } | |
256 | ||
257 | client->info = QOBJECT(qdict); | |
1ff7df1a AL |
258 | } |
259 | ||
586153d9 LC |
260 | static void vnc_qmp_event(VncState *vs, MonitorEvent event) |
261 | { | |
262 | QDict *server; | |
263 | QObject *data; | |
264 | ||
265 | if (!vs->info) { | |
266 | return; | |
267 | } | |
268 | ||
269 | server = qdict_new(); | |
270 | if (vnc_server_info_put(server) < 0) { | |
271 | QDECREF(server); | |
272 | return; | |
273 | } | |
274 | ||
275 | data = qobject_from_jsonf("{ 'client': %p, 'server': %p }", | |
276 | vs->info, QOBJECT(server)); | |
277 | ||
278 | monitor_protocol_event(event, data); | |
279 | ||
280 | qobject_incref(vs->info); | |
281 | qobject_decref(data); | |
282 | } | |
283 | ||
d96fd29c | 284 | static void info_vnc_iter(QObject *obj, void *opaque) |
a9ce8590 | 285 | { |
d96fd29c LC |
286 | QDict *client; |
287 | Monitor *mon = opaque; | |
288 | ||
289 | client = qobject_to_qdict(obj); | |
290 | monitor_printf(mon, "Client:\n"); | |
291 | monitor_printf(mon, " address: %s:%s\n", | |
292 | qdict_get_str(client, "host"), | |
293 | qdict_get_str(client, "service")); | |
294 | ||
295 | #ifdef CONFIG_VNC_TLS | |
296 | monitor_printf(mon, " x509_dname: %s\n", | |
297 | qdict_haskey(client, "x509_dname") ? | |
298 | qdict_get_str(client, "x509_dname") : "none"); | |
299 | #endif | |
300 | #ifdef CONFIG_VNC_SASL | |
301 | monitor_printf(mon, " username: %s\n", | |
76825067 LC |
302 | qdict_haskey(client, "sasl_username") ? |
303 | qdict_get_str(client, "sasl_username") : "none"); | |
d96fd29c LC |
304 | #endif |
305 | } | |
306 | ||
307 | void do_info_vnc_print(Monitor *mon, const QObject *data) | |
308 | { | |
309 | QDict *server; | |
310 | QList *clients; | |
311 | ||
312 | server = qobject_to_qdict(data); | |
8950a950 | 313 | if (qdict_get_bool(server, "enabled") == 0) { |
1ff7df1a | 314 | monitor_printf(mon, "Server: disabled\n"); |
d96fd29c LC |
315 | return; |
316 | } | |
1ff7df1a | 317 | |
d96fd29c LC |
318 | monitor_printf(mon, "Server:\n"); |
319 | monitor_printf(mon, " address: %s:%s\n", | |
320 | qdict_get_str(server, "host"), | |
321 | qdict_get_str(server, "service")); | |
a7789382 | 322 | monitor_printf(mon, " auth: %s\n", qdict_get_str(server, "auth")); |
d96fd29c LC |
323 | |
324 | clients = qdict_get_qlist(server, "clients"); | |
325 | if (qlist_empty(clients)) { | |
326 | monitor_printf(mon, "Client: none\n"); | |
327 | } else { | |
328 | qlist_iter(clients, info_vnc_iter, mon); | |
329 | } | |
330 | } | |
1ff7df1a | 331 | |
d96fd29c LC |
332 | void do_info_vnc(Monitor *mon, QObject **ret_data) |
333 | { | |
334 | if (vnc_display == NULL || vnc_display->display == NULL) { | |
8950a950 | 335 | *ret_data = qobject_from_jsonf("{ 'enabled': false }"); |
d96fd29c | 336 | } else { |
d96fd29c | 337 | QList *clist; |
41b4bef6 | 338 | VncState *client; |
1ff7df1a | 339 | |
d96fd29c | 340 | clist = qlist_new(); |
41b4bef6 AS |
341 | QTAILQ_FOREACH(client, &vnc_display->clients, next) { |
342 | if (client->info) { | |
343 | /* incref so that it's not freed by upper layers */ | |
344 | qobject_incref(client->info); | |
345 | qlist_append_obj(clist, client->info); | |
1ff7df1a | 346 | } |
d96fd29c LC |
347 | } |
348 | ||
8950a950 | 349 | *ret_data = qobject_from_jsonf("{ 'enabled': true, 'clients': %p }", |
d96fd29c LC |
350 | QOBJECT(clist)); |
351 | assert(*ret_data != NULL); | |
352 | ||
a7789382 | 353 | if (vnc_server_info_put(qobject_to_qdict(*ret_data)) < 0) { |
d96fd29c LC |
354 | qobject_decref(*ret_data); |
355 | *ret_data = NULL; | |
1ff7df1a | 356 | } |
a9ce8590 FB |
357 | } |
358 | } | |
359 | ||
24236869 FB |
360 | /* TODO |
361 | 1) Get the queue working for IO. | |
362 | 2) there is some weirdness when using the -S option (the screen is grey | |
363 | and not totally invalidated | |
364 | 3) resolutions > 1024 | |
365 | */ | |
366 | ||
2430ffe4 | 367 | static int vnc_update_client(VncState *vs, int has_dirty); |
bd023f95 | 368 | static int vnc_update_client_sync(VncState *vs, int has_dirty); |
198a0039 GH |
369 | static void vnc_disconnect_start(VncState *vs); |
370 | static void vnc_disconnect_finish(VncState *vs); | |
703bc68f SS |
371 | static void vnc_init_timer(VncDisplay *vd); |
372 | static void vnc_remove_timer(VncDisplay *vd); | |
24236869 | 373 | |
753b4053 | 374 | static void vnc_colordepth(VncState *vs); |
1fc62412 SS |
375 | static void framebuffer_update_request(VncState *vs, int incremental, |
376 | int x_position, int y_position, | |
377 | int w, int h); | |
378 | static void vnc_refresh(void *opaque); | |
379 | static int vnc_refresh_server_surface(VncDisplay *vd); | |
7eac3a87 | 380 | |
99589bdc FB |
381 | static inline void vnc_set_bit(uint32_t *d, int k) |
382 | { | |
383 | d[k >> 5] |= 1 << (k & 0x1f); | |
384 | } | |
385 | ||
386 | static inline void vnc_clear_bit(uint32_t *d, int k) | |
387 | { | |
388 | d[k >> 5] &= ~(1 << (k & 0x1f)); | |
389 | } | |
390 | ||
391 | static inline void vnc_set_bits(uint32_t *d, int n, int nb_words) | |
392 | { | |
393 | int j; | |
394 | ||
395 | j = 0; | |
396 | while (n >= 32) { | |
397 | d[j++] = -1; | |
398 | n -= 32; | |
399 | } | |
5fafdf24 | 400 | if (n > 0) |
99589bdc FB |
401 | d[j++] = (1 << n) - 1; |
402 | while (j < nb_words) | |
403 | d[j++] = 0; | |
404 | } | |
405 | ||
406 | static inline int vnc_get_bit(const uint32_t *d, int k) | |
407 | { | |
408 | return (d[k >> 5] >> (k & 0x1f)) & 1; | |
409 | } | |
410 | ||
5fafdf24 | 411 | static inline int vnc_and_bits(const uint32_t *d1, const uint32_t *d2, |
99589bdc FB |
412 | int nb_words) |
413 | { | |
414 | int i; | |
415 | for(i = 0; i < nb_words; i++) { | |
416 | if ((d1[i] & d2[i]) != 0) | |
417 | return 1; | |
418 | } | |
419 | return 0; | |
420 | } | |
421 | ||
1fc62412 | 422 | static void vnc_dpy_update(DisplayState *ds, int x, int y, int w, int h) |
24236869 | 423 | { |
24236869 | 424 | int i; |
1fc62412 SS |
425 | VncDisplay *vd = ds->opaque; |
426 | struct VncSurface *s = &vd->guest; | |
24236869 FB |
427 | |
428 | h += y; | |
429 | ||
0486e8a7 AZ |
430 | /* round x down to ensure the loop only spans one 16-pixel block per, |
431 | iteration. otherwise, if (x % 16) != 0, the last iteration may span | |
432 | two 16-pixel blocks but we only mark the first as dirty | |
433 | */ | |
434 | w += (x % 16); | |
435 | x -= (x % 16); | |
436 | ||
6baebed7 AL |
437 | x = MIN(x, s->ds->width); |
438 | y = MIN(y, s->ds->height); | |
439 | w = MIN(x + w, s->ds->width) - x; | |
440 | h = MIN(h, s->ds->height); | |
788abf8e | 441 | |
24236869 | 442 | for (; y < h; y++) |
28a76be8 | 443 | for (i = 0; i < w; i += 16) |
6baebed7 | 444 | vnc_set_bit(s->dirty[y], (x + i) / 16); |
24236869 FB |
445 | } |
446 | ||
70a4568f CC |
447 | void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, |
448 | int32_t encoding) | |
24236869 FB |
449 | { |
450 | vnc_write_u16(vs, x); | |
451 | vnc_write_u16(vs, y); | |
452 | vnc_write_u16(vs, w); | |
453 | vnc_write_u16(vs, h); | |
454 | ||
455 | vnc_write_s32(vs, encoding); | |
456 | } | |
457 | ||
2f9606b3 | 458 | void buffer_reserve(Buffer *buffer, size_t len) |
89064286 AL |
459 | { |
460 | if ((buffer->capacity - buffer->offset) < len) { | |
28a76be8 AL |
461 | buffer->capacity += (len + 1024); |
462 | buffer->buffer = qemu_realloc(buffer->buffer, buffer->capacity); | |
463 | if (buffer->buffer == NULL) { | |
464 | fprintf(stderr, "vnc: out of memory\n"); | |
465 | exit(1); | |
466 | } | |
89064286 AL |
467 | } |
468 | } | |
469 | ||
2f9606b3 | 470 | int buffer_empty(Buffer *buffer) |
89064286 AL |
471 | { |
472 | return buffer->offset == 0; | |
473 | } | |
474 | ||
2f9606b3 | 475 | uint8_t *buffer_end(Buffer *buffer) |
89064286 AL |
476 | { |
477 | return buffer->buffer + buffer->offset; | |
478 | } | |
479 | ||
2f9606b3 | 480 | void buffer_reset(Buffer *buffer) |
89064286 | 481 | { |
28a76be8 | 482 | buffer->offset = 0; |
89064286 AL |
483 | } |
484 | ||
5d418e3b CC |
485 | void buffer_free(Buffer *buffer) |
486 | { | |
487 | qemu_free(buffer->buffer); | |
488 | buffer->offset = 0; | |
489 | buffer->capacity = 0; | |
490 | buffer->buffer = NULL; | |
491 | } | |
492 | ||
2f9606b3 | 493 | void buffer_append(Buffer *buffer, const void *data, size_t len) |
89064286 AL |
494 | { |
495 | memcpy(buffer->buffer + buffer->offset, data, len); | |
496 | buffer->offset += len; | |
497 | } | |
498 | ||
621aaeb9 GH |
499 | static void vnc_desktop_resize(VncState *vs) |
500 | { | |
501 | DisplayState *ds = vs->ds; | |
502 | ||
503 | if (vs->csock == -1 || !vnc_has_feature(vs, VNC_FEATURE_RESIZE)) { | |
504 | return; | |
505 | } | |
1d4b638a GH |
506 | if (vs->client_width == ds_get_width(ds) && |
507 | vs->client_height == ds_get_height(ds)) { | |
508 | return; | |
509 | } | |
5862d195 GH |
510 | vs->client_width = ds_get_width(ds); |
511 | vs->client_height = ds_get_height(ds); | |
bd023f95 | 512 | vnc_lock_output(vs); |
621aaeb9 GH |
513 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
514 | vnc_write_u8(vs, 0); | |
515 | vnc_write_u16(vs, 1); /* number of rects */ | |
5862d195 | 516 | vnc_framebuffer_update(vs, 0, 0, vs->client_width, vs->client_height, |
621aaeb9 | 517 | VNC_ENCODING_DESKTOPRESIZE); |
bd023f95 | 518 | vnc_unlock_output(vs); |
621aaeb9 GH |
519 | vnc_flush(vs); |
520 | } | |
521 | ||
bd023f95 CC |
522 | #ifdef CONFIG_VNC_THREAD |
523 | static void vnc_abort_display_jobs(VncDisplay *vd) | |
524 | { | |
525 | VncState *vs; | |
526 | ||
527 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
528 | vnc_lock_output(vs); | |
529 | vs->abort = true; | |
530 | vnc_unlock_output(vs); | |
531 | } | |
532 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
533 | vnc_jobs_join(vs); | |
534 | } | |
535 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
536 | vnc_lock_output(vs); | |
537 | vs->abort = false; | |
538 | vnc_unlock_output(vs); | |
539 | } | |
540 | } | |
541 | #else | |
542 | static void vnc_abort_display_jobs(VncDisplay *vd) | |
543 | { | |
544 | } | |
545 | #endif | |
546 | ||
1fc62412 | 547 | static void vnc_dpy_resize(DisplayState *ds) |
24236869 | 548 | { |
1fc62412 | 549 | VncDisplay *vd = ds->opaque; |
41b4bef6 | 550 | VncState *vs; |
1fc62412 | 551 | |
bd023f95 CC |
552 | vnc_abort_display_jobs(vd); |
553 | ||
1fc62412 SS |
554 | /* server surface */ |
555 | if (!vd->server) | |
556 | vd->server = qemu_mallocz(sizeof(*vd->server)); | |
557 | if (vd->server->data) | |
558 | qemu_free(vd->server->data); | |
559 | *(vd->server) = *(ds->surface); | |
560 | vd->server->data = qemu_mallocz(vd->server->linesize * | |
561 | vd->server->height); | |
24236869 | 562 | |
6baebed7 | 563 | /* guest surface */ |
1fc62412 SS |
564 | if (!vd->guest.ds) |
565 | vd->guest.ds = qemu_mallocz(sizeof(*vd->guest.ds)); | |
566 | if (ds_get_bytes_per_pixel(ds) != vd->guest.ds->pf.bytes_per_pixel) | |
a528b80c | 567 | console_color_init(ds); |
1fc62412 SS |
568 | *(vd->guest.ds) = *(ds->surface); |
569 | memset(vd->guest.dirty, 0xFF, sizeof(vd->guest.dirty)); | |
24236869 | 570 | |
41b4bef6 | 571 | QTAILQ_FOREACH(vs, &vd->clients, next) { |
1fc62412 | 572 | vnc_colordepth(vs); |
1d4b638a | 573 | vnc_desktop_resize(vs); |
d467b679 GH |
574 | if (vs->vd->cursor) { |
575 | vnc_cursor_define(vs); | |
576 | } | |
1fc62412 | 577 | memset(vs->dirty, 0xFF, sizeof(vs->dirty)); |
753b4053 AL |
578 | } |
579 | } | |
580 | ||
3512779a | 581 | /* fastest code */ |
d467b679 GH |
582 | static void vnc_write_pixels_copy(VncState *vs, struct PixelFormat *pf, |
583 | void *pixels, int size) | |
3512779a FB |
584 | { |
585 | vnc_write(vs, pixels, size); | |
586 | } | |
587 | ||
588 | /* slowest but generic code. */ | |
70a4568f | 589 | void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v) |
3512779a | 590 | { |
7eac3a87 | 591 | uint8_t r, g, b; |
1fc62412 SS |
592 | VncDisplay *vd = vs->vd; |
593 | ||
594 | r = ((((v & vd->server->pf.rmask) >> vd->server->pf.rshift) << vs->clientds.pf.rbits) >> | |
595 | vd->server->pf.rbits); | |
596 | g = ((((v & vd->server->pf.gmask) >> vd->server->pf.gshift) << vs->clientds.pf.gbits) >> | |
597 | vd->server->pf.gbits); | |
598 | b = ((((v & vd->server->pf.bmask) >> vd->server->pf.bshift) << vs->clientds.pf.bbits) >> | |
599 | vd->server->pf.bbits); | |
6cec5487 AL |
600 | v = (r << vs->clientds.pf.rshift) | |
601 | (g << vs->clientds.pf.gshift) | | |
602 | (b << vs->clientds.pf.bshift); | |
603 | switch(vs->clientds.pf.bytes_per_pixel) { | |
3512779a FB |
604 | case 1: |
605 | buf[0] = v; | |
606 | break; | |
607 | case 2: | |
6cec5487 | 608 | if (vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) { |
3512779a FB |
609 | buf[0] = v >> 8; |
610 | buf[1] = v; | |
611 | } else { | |
612 | buf[1] = v >> 8; | |
613 | buf[0] = v; | |
614 | } | |
615 | break; | |
616 | default: | |
617 | case 4: | |
6cec5487 | 618 | if (vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) { |
3512779a FB |
619 | buf[0] = v >> 24; |
620 | buf[1] = v >> 16; | |
621 | buf[2] = v >> 8; | |
622 | buf[3] = v; | |
623 | } else { | |
624 | buf[3] = v >> 24; | |
625 | buf[2] = v >> 16; | |
626 | buf[1] = v >> 8; | |
627 | buf[0] = v; | |
628 | } | |
629 | break; | |
630 | } | |
631 | } | |
632 | ||
d467b679 GH |
633 | static void vnc_write_pixels_generic(VncState *vs, struct PixelFormat *pf, |
634 | void *pixels1, int size) | |
3512779a | 635 | { |
3512779a | 636 | uint8_t buf[4]; |
3512779a | 637 | |
d467b679 | 638 | if (pf->bytes_per_pixel == 4) { |
7eac3a87 AL |
639 | uint32_t *pixels = pixels1; |
640 | int n, i; | |
641 | n = size >> 2; | |
642 | for(i = 0; i < n; i++) { | |
643 | vnc_convert_pixel(vs, buf, pixels[i]); | |
6cec5487 | 644 | vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel); |
7eac3a87 | 645 | } |
d467b679 | 646 | } else if (pf->bytes_per_pixel == 2) { |
7eac3a87 AL |
647 | uint16_t *pixels = pixels1; |
648 | int n, i; | |
649 | n = size >> 1; | |
650 | for(i = 0; i < n; i++) { | |
651 | vnc_convert_pixel(vs, buf, pixels[i]); | |
6cec5487 | 652 | vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel); |
7eac3a87 | 653 | } |
d467b679 | 654 | } else if (pf->bytes_per_pixel == 1) { |
7eac3a87 AL |
655 | uint8_t *pixels = pixels1; |
656 | int n, i; | |
657 | n = size; | |
658 | for(i = 0; i < n; i++) { | |
659 | vnc_convert_pixel(vs, buf, pixels[i]); | |
6cec5487 | 660 | vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel); |
7eac3a87 AL |
661 | } |
662 | } else { | |
663 | fprintf(stderr, "vnc_write_pixels_generic: VncState color depth not supported\n"); | |
3512779a FB |
664 | } |
665 | } | |
666 | ||
a885211e | 667 | int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h) |
24236869 FB |
668 | { |
669 | int i; | |
60fe76f3 | 670 | uint8_t *row; |
1fc62412 | 671 | VncDisplay *vd = vs->vd; |
24236869 | 672 | |
1fc62412 | 673 | row = vd->server->data + y * ds_get_linesize(vs->ds) + x * ds_get_bytes_per_pixel(vs->ds); |
24236869 | 674 | for (i = 0; i < h; i++) { |
d467b679 | 675 | vs->write_pixels(vs, &vd->server->pf, row, w * ds_get_bytes_per_pixel(vs->ds)); |
28a76be8 | 676 | row += ds_get_linesize(vs->ds); |
24236869 | 677 | } |
a885211e | 678 | return 1; |
24236869 FB |
679 | } |
680 | ||
bd023f95 | 681 | int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h) |
24236869 | 682 | { |
a885211e CC |
683 | int n = 0; |
684 | ||
fb437313 | 685 | switch(vs->vnc_encoding) { |
28a76be8 | 686 | case VNC_ENCODING_ZLIB: |
a885211e | 687 | n = vnc_zlib_send_framebuffer_update(vs, x, y, w, h); |
28a76be8 AL |
688 | break; |
689 | case VNC_ENCODING_HEXTILE: | |
690 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_HEXTILE); | |
a885211e | 691 | n = vnc_hextile_send_framebuffer_update(vs, x, y, w, h); |
28a76be8 | 692 | break; |
380282b0 CC |
693 | case VNC_ENCODING_TIGHT: |
694 | n = vnc_tight_send_framebuffer_update(vs, x, y, w, h); | |
695 | break; | |
efe556ad CC |
696 | case VNC_ENCODING_TIGHT_PNG: |
697 | n = vnc_tight_png_send_framebuffer_update(vs, x, y, w, h); | |
698 | break; | |
28a76be8 AL |
699 | default: |
700 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW); | |
a885211e | 701 | n = vnc_raw_send_framebuffer_update(vs, x, y, w, h); |
28a76be8 | 702 | break; |
fb437313 | 703 | } |
a885211e | 704 | return n; |
24236869 FB |
705 | } |
706 | ||
753b4053 | 707 | static void vnc_copy(VncState *vs, int src_x, int src_y, int dst_x, int dst_y, int w, int h) |
24236869 | 708 | { |
3e28c9ad | 709 | /* send bitblit op to the vnc client */ |
bd023f95 | 710 | vnc_lock_output(vs); |
46a183da | 711 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
24236869 FB |
712 | vnc_write_u8(vs, 0); |
713 | vnc_write_u16(vs, 1); /* number of rects */ | |
29fa4ed9 | 714 | vnc_framebuffer_update(vs, dst_x, dst_y, w, h, VNC_ENCODING_COPYRECT); |
24236869 FB |
715 | vnc_write_u16(vs, src_x); |
716 | vnc_write_u16(vs, src_y); | |
bd023f95 | 717 | vnc_unlock_output(vs); |
24236869 FB |
718 | vnc_flush(vs); |
719 | } | |
720 | ||
753b4053 AL |
721 | static void vnc_dpy_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h) |
722 | { | |
723 | VncDisplay *vd = ds->opaque; | |
198a0039 | 724 | VncState *vs, *vn; |
1fc62412 SS |
725 | uint8_t *src_row; |
726 | uint8_t *dst_row; | |
727 | int i,x,y,pitch,depth,inc,w_lim,s; | |
728 | int cmp_bytes; | |
198a0039 | 729 | |
1fc62412 | 730 | vnc_refresh_server_surface(vd); |
41b4bef6 | 731 | QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) { |
198a0039 GH |
732 | if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) { |
733 | vs->force_update = 1; | |
bd023f95 | 734 | vnc_update_client_sync(vs, 1); |
198a0039 GH |
735 | /* vs might be free()ed here */ |
736 | } | |
737 | } | |
738 | ||
1fc62412 SS |
739 | /* do bitblit op on the local surface too */ |
740 | pitch = ds_get_linesize(vd->ds); | |
741 | depth = ds_get_bytes_per_pixel(vd->ds); | |
742 | src_row = vd->server->data + pitch * src_y + depth * src_x; | |
743 | dst_row = vd->server->data + pitch * dst_y + depth * dst_x; | |
744 | y = dst_y; | |
745 | inc = 1; | |
746 | if (dst_y > src_y) { | |
747 | /* copy backwards */ | |
748 | src_row += pitch * (h-1); | |
749 | dst_row += pitch * (h-1); | |
750 | pitch = -pitch; | |
751 | y = dst_y + h - 1; | |
752 | inc = -1; | |
753 | } | |
754 | w_lim = w - (16 - (dst_x % 16)); | |
755 | if (w_lim < 0) | |
756 | w_lim = w; | |
757 | else | |
758 | w_lim = w - (w_lim % 16); | |
759 | for (i = 0; i < h; i++) { | |
760 | for (x = 0; x <= w_lim; | |
761 | x += s, src_row += cmp_bytes, dst_row += cmp_bytes) { | |
762 | if (x == w_lim) { | |
763 | if ((s = w - w_lim) == 0) | |
764 | break; | |
765 | } else if (!x) { | |
766 | s = (16 - (dst_x % 16)); | |
767 | s = MIN(s, w_lim); | |
768 | } else { | |
769 | s = 16; | |
770 | } | |
771 | cmp_bytes = s * depth; | |
772 | if (memcmp(src_row, dst_row, cmp_bytes) == 0) | |
773 | continue; | |
774 | memmove(dst_row, src_row, cmp_bytes); | |
41b4bef6 AS |
775 | QTAILQ_FOREACH(vs, &vd->clients, next) { |
776 | if (!vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) { | |
1fc62412 | 777 | vnc_set_bit(vs->dirty[y], ((x + dst_x) / 16)); |
41b4bef6 | 778 | } |
1fc62412 SS |
779 | } |
780 | } | |
781 | src_row += pitch - w * depth; | |
782 | dst_row += pitch - w * depth; | |
783 | y += inc; | |
784 | } | |
785 | ||
41b4bef6 AS |
786 | QTAILQ_FOREACH(vs, &vd->clients, next) { |
787 | if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) { | |
753b4053 | 788 | vnc_copy(vs, src_x, src_y, dst_x, dst_y, w, h); |
41b4bef6 | 789 | } |
753b4053 AL |
790 | } |
791 | } | |
792 | ||
d467b679 GH |
793 | static void vnc_mouse_set(int x, int y, int visible) |
794 | { | |
795 | /* can we ask the client(s) to move the pointer ??? */ | |
796 | } | |
797 | ||
798 | static int vnc_cursor_define(VncState *vs) | |
799 | { | |
800 | QEMUCursor *c = vs->vd->cursor; | |
801 | PixelFormat pf = qemu_default_pixelformat(32); | |
802 | int isize; | |
803 | ||
804 | if (vnc_has_feature(vs, VNC_FEATURE_RICH_CURSOR)) { | |
d01f9595 | 805 | vnc_lock_output(vs); |
d467b679 GH |
806 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
807 | vnc_write_u8(vs, 0); /* padding */ | |
808 | vnc_write_u16(vs, 1); /* # of rects */ | |
809 | vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height, | |
810 | VNC_ENCODING_RICH_CURSOR); | |
811 | isize = c->width * c->height * vs->clientds.pf.bytes_per_pixel; | |
812 | vnc_write_pixels_generic(vs, &pf, c->data, isize); | |
813 | vnc_write(vs, vs->vd->cursor_mask, vs->vd->cursor_msize); | |
d01f9595 | 814 | vnc_unlock_output(vs); |
d467b679 GH |
815 | return 0; |
816 | } | |
817 | return -1; | |
818 | } | |
819 | ||
820 | static void vnc_dpy_cursor_define(QEMUCursor *c) | |
821 | { | |
822 | VncDisplay *vd = vnc_display; | |
823 | VncState *vs; | |
824 | ||
825 | cursor_put(vd->cursor); | |
826 | qemu_free(vd->cursor_mask); | |
827 | ||
828 | vd->cursor = c; | |
829 | cursor_get(vd->cursor); | |
830 | vd->cursor_msize = cursor_get_mono_bpl(c) * c->height; | |
831 | vd->cursor_mask = qemu_mallocz(vd->cursor_msize); | |
832 | cursor_get_mono_mask(c, 0, vd->cursor_mask); | |
833 | ||
834 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
835 | vnc_cursor_define(vs); | |
836 | } | |
837 | } | |
838 | ||
1fc62412 | 839 | static int find_and_clear_dirty_height(struct VncState *vs, |
6baebed7 | 840 | int y, int last_x, int x) |
24236869 FB |
841 | { |
842 | int h; | |
1fc62412 | 843 | VncDisplay *vd = vs->vd; |
24236869 | 844 | |
1fc62412 | 845 | for (h = 1; h < (vd->server->height - y); h++) { |
28a76be8 | 846 | int tmp_x; |
1fc62412 | 847 | if (!vnc_get_bit(vs->dirty[y + h], last_x)) |
28a76be8 AL |
848 | break; |
849 | for (tmp_x = last_x; tmp_x < x; tmp_x++) | |
1fc62412 | 850 | vnc_clear_bit(vs->dirty[y + h], tmp_x); |
24236869 FB |
851 | } |
852 | ||
853 | return h; | |
854 | } | |
855 | ||
bd023f95 CC |
856 | #ifdef CONFIG_VNC_THREAD |
857 | static int vnc_update_client_sync(VncState *vs, int has_dirty) | |
858 | { | |
859 | int ret = vnc_update_client(vs, has_dirty); | |
860 | vnc_jobs_join(vs); | |
861 | return ret; | |
862 | } | |
863 | #else | |
864 | static int vnc_update_client_sync(VncState *vs, int has_dirty) | |
865 | { | |
866 | return vnc_update_client(vs, has_dirty); | |
867 | } | |
868 | #endif | |
869 | ||
2430ffe4 | 870 | static int vnc_update_client(VncState *vs, int has_dirty) |
24236869 | 871 | { |
24236869 | 872 | if (vs->need_update && vs->csock != -1) { |
1fc62412 | 873 | VncDisplay *vd = vs->vd; |
bd023f95 | 874 | VncJob *job; |
28a76be8 | 875 | int y; |
847ce6a1 | 876 | int width, height; |
bd023f95 CC |
877 | int n = 0; |
878 | ||
24236869 | 879 | |
703bc68f | 880 | if (vs->output.offset && !vs->audio_cap && !vs->force_update) |
c522d0e2 | 881 | /* kernel send buffers are full -> drop frames to throttle */ |
2430ffe4 | 882 | return 0; |
a0ecfb73 | 883 | |
703bc68f | 884 | if (!has_dirty && !vs->audio_cap && !vs->force_update) |
2430ffe4 | 885 | return 0; |
28a76be8 | 886 | |
6baebed7 AL |
887 | /* |
888 | * Send screen updates to the vnc client using the server | |
889 | * surface and server dirty map. guest surface updates | |
890 | * happening in parallel don't disturb us, the next pass will | |
891 | * send them to the client. | |
892 | */ | |
bd023f95 | 893 | job = vnc_job_new(vs); |
28a76be8 | 894 | |
847ce6a1 GH |
895 | width = MIN(vd->server->width, vs->client_width); |
896 | height = MIN(vd->server->height, vs->client_height); | |
897 | ||
898 | for (y = 0; y < height; y++) { | |
28a76be8 AL |
899 | int x; |
900 | int last_x = -1; | |
847ce6a1 | 901 | for (x = 0; x < width / 16; x++) { |
1fc62412 | 902 | if (vnc_get_bit(vs->dirty[y], x)) { |
28a76be8 AL |
903 | if (last_x == -1) { |
904 | last_x = x; | |
905 | } | |
1fc62412 | 906 | vnc_clear_bit(vs->dirty[y], x); |
28a76be8 AL |
907 | } else { |
908 | if (last_x != -1) { | |
1fc62412 | 909 | int h = find_and_clear_dirty_height(vs, y, last_x, x); |
bd023f95 CC |
910 | |
911 | n += vnc_job_add_rect(job, last_x * 16, y, | |
912 | (x - last_x) * 16, h); | |
28a76be8 AL |
913 | } |
914 | last_x = -1; | |
915 | } | |
916 | } | |
917 | if (last_x != -1) { | |
1fc62412 | 918 | int h = find_and_clear_dirty_height(vs, y, last_x, x); |
bd023f95 CC |
919 | n += vnc_job_add_rect(job, last_x * 16, y, |
920 | (x - last_x) * 16, h); | |
28a76be8 AL |
921 | } |
922 | } | |
bd023f95 CC |
923 | |
924 | vnc_job_push(job); | |
c522d0e2 | 925 | vs->force_update = 0; |
bd023f95 | 926 | return n; |
24236869 | 927 | } |
24236869 | 928 | |
703bc68f | 929 | if (vs->csock == -1) |
198a0039 | 930 | vnc_disconnect_finish(vs); |
2430ffe4 SS |
931 | |
932 | return 0; | |
24236869 FB |
933 | } |
934 | ||
429a8ed3 | 935 | /* audio */ |
936 | static void audio_capture_notify(void *opaque, audcnotification_e cmd) | |
937 | { | |
938 | VncState *vs = opaque; | |
939 | ||
940 | switch (cmd) { | |
941 | case AUD_CNOTIFY_DISABLE: | |
bd023f95 | 942 | vnc_lock_output(vs); |
46a183da DB |
943 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); |
944 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
945 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_END); | |
bd023f95 | 946 | vnc_unlock_output(vs); |
429a8ed3 | 947 | vnc_flush(vs); |
948 | break; | |
949 | ||
950 | case AUD_CNOTIFY_ENABLE: | |
bd023f95 | 951 | vnc_lock_output(vs); |
46a183da DB |
952 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); |
953 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
954 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_BEGIN); | |
bd023f95 | 955 | vnc_unlock_output(vs); |
429a8ed3 | 956 | vnc_flush(vs); |
957 | break; | |
958 | } | |
959 | } | |
960 | ||
961 | static void audio_capture_destroy(void *opaque) | |
962 | { | |
963 | } | |
964 | ||
965 | static void audio_capture(void *opaque, void *buf, int size) | |
966 | { | |
967 | VncState *vs = opaque; | |
968 | ||
bd023f95 | 969 | vnc_lock_output(vs); |
46a183da DB |
970 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); |
971 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
972 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_DATA); | |
429a8ed3 | 973 | vnc_write_u32(vs, size); |
974 | vnc_write(vs, buf, size); | |
bd023f95 | 975 | vnc_unlock_output(vs); |
429a8ed3 | 976 | vnc_flush(vs); |
977 | } | |
978 | ||
979 | static void audio_add(VncState *vs) | |
980 | { | |
981 | struct audio_capture_ops ops; | |
982 | ||
983 | if (vs->audio_cap) { | |
8631b608 | 984 | monitor_printf(default_mon, "audio already running\n"); |
429a8ed3 | 985 | return; |
986 | } | |
987 | ||
988 | ops.notify = audio_capture_notify; | |
989 | ops.destroy = audio_capture_destroy; | |
990 | ops.capture = audio_capture; | |
991 | ||
1a7dafce | 992 | vs->audio_cap = AUD_add_capture(&vs->as, &ops, vs); |
429a8ed3 | 993 | if (!vs->audio_cap) { |
8631b608 | 994 | monitor_printf(default_mon, "Failed to add audio capture\n"); |
429a8ed3 | 995 | } |
996 | } | |
997 | ||
998 | static void audio_del(VncState *vs) | |
999 | { | |
1000 | if (vs->audio_cap) { | |
1001 | AUD_del_capture(vs->audio_cap, vs); | |
1002 | vs->audio_cap = NULL; | |
1003 | } | |
1004 | } | |
1005 | ||
198a0039 GH |
1006 | static void vnc_disconnect_start(VncState *vs) |
1007 | { | |
1008 | if (vs->csock == -1) | |
1009 | return; | |
1010 | qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL); | |
1011 | closesocket(vs->csock); | |
1012 | vs->csock = -1; | |
1013 | } | |
1014 | ||
1015 | static void vnc_disconnect_finish(VncState *vs) | |
1016 | { | |
bd023f95 CC |
1017 | vnc_jobs_join(vs); /* Wait encoding jobs */ |
1018 | ||
1019 | vnc_lock_output(vs); | |
0d72f3d3 LC |
1020 | vnc_qmp_event(vs, QEVENT_VNC_DISCONNECTED); |
1021 | ||
5d418e3b CC |
1022 | buffer_free(&vs->input); |
1023 | buffer_free(&vs->output); | |
4a80dba3 LC |
1024 | |
1025 | qobject_decref(vs->info); | |
1026 | ||
161c4f20 | 1027 | vnc_zlib_clear(vs); |
380282b0 | 1028 | vnc_tight_clear(vs); |
161c4f20 | 1029 | |
198a0039 GH |
1030 | #ifdef CONFIG_VNC_TLS |
1031 | vnc_tls_client_cleanup(vs); | |
1032 | #endif /* CONFIG_VNC_TLS */ | |
1033 | #ifdef CONFIG_VNC_SASL | |
1034 | vnc_sasl_client_cleanup(vs); | |
1035 | #endif /* CONFIG_VNC_SASL */ | |
1036 | audio_del(vs); | |
1037 | ||
41b4bef6 AS |
1038 | QTAILQ_REMOVE(&vs->vd->clients, vs, next); |
1039 | ||
1040 | if (QTAILQ_EMPTY(&vs->vd->clients)) { | |
198a0039 | 1041 | dcl->idle = 1; |
41b4bef6 | 1042 | } |
198a0039 | 1043 | |
37c34d9d | 1044 | qemu_remove_mouse_mode_change_notifier(&vs->mouse_mode_notifier); |
703bc68f | 1045 | vnc_remove_timer(vs->vd); |
3a0558b5 GH |
1046 | if (vs->vd->lock_key_sync) |
1047 | qemu_remove_led_event_handler(vs->led); | |
bd023f95 CC |
1048 | vnc_unlock_output(vs); |
1049 | ||
1050 | #ifdef CONFIG_VNC_THREAD | |
1051 | qemu_mutex_destroy(&vs->output_mutex); | |
1052 | #endif | |
5d95ac5b | 1053 | qemu_free(vs); |
198a0039 | 1054 | } |
2f9606b3 AL |
1055 | |
1056 | int vnc_client_io_error(VncState *vs, int ret, int last_errno) | |
24236869 FB |
1057 | { |
1058 | if (ret == 0 || ret == -1) { | |
ea01e5fd AZ |
1059 | if (ret == -1) { |
1060 | switch (last_errno) { | |
1061 | case EINTR: | |
1062 | case EAGAIN: | |
1063 | #ifdef _WIN32 | |
1064 | case WSAEWOULDBLOCK: | |
1065 | #endif | |
1066 | return 0; | |
1067 | default: | |
1068 | break; | |
1069 | } | |
1070 | } | |
24236869 | 1071 | |
198a0039 GH |
1072 | VNC_DEBUG("Closing down client sock: ret %d, errno %d\n", |
1073 | ret, ret < 0 ? last_errno : 0); | |
1074 | vnc_disconnect_start(vs); | |
6baebed7 | 1075 | |
28a76be8 | 1076 | return 0; |
24236869 FB |
1077 | } |
1078 | return ret; | |
1079 | } | |
1080 | ||
5fb6c7a8 AL |
1081 | |
1082 | void vnc_client_error(VncState *vs) | |
24236869 | 1083 | { |
198a0039 GH |
1084 | VNC_DEBUG("Closing down client sock: protocol error\n"); |
1085 | vnc_disconnect_start(vs); | |
24236869 FB |
1086 | } |
1087 | ||
2f9606b3 AL |
1088 | |
1089 | /* | |
1090 | * Called to write a chunk of data to the client socket. The data may | |
1091 | * be the raw data, or may have already been encoded by SASL. | |
1092 | * The data will be written either straight onto the socket, or | |
1093 | * written via the GNUTLS wrappers, if TLS/SSL encryption is enabled | |
1094 | * | |
1095 | * NB, it is theoretically possible to have 2 layers of encryption, | |
1096 | * both SASL, and this TLS layer. It is highly unlikely in practice | |
1097 | * though, since SASL encryption will typically be a no-op if TLS | |
1098 | * is active | |
1099 | * | |
1100 | * Returns the number of bytes written, which may be less than | |
1101 | * the requested 'datalen' if the socket would block. Returns | |
1102 | * -1 on error, and disconnects the client socket. | |
1103 | */ | |
1104 | long vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen) | |
24236869 | 1105 | { |
ceb5caaf | 1106 | long ret; |
eb38c52c | 1107 | #ifdef CONFIG_VNC_TLS |
5fb6c7a8 | 1108 | if (vs->tls.session) { |
28a76be8 AL |
1109 | ret = gnutls_write(vs->tls.session, data, datalen); |
1110 | if (ret < 0) { | |
1111 | if (ret == GNUTLS_E_AGAIN) | |
1112 | errno = EAGAIN; | |
1113 | else | |
1114 | errno = EIO; | |
1115 | ret = -1; | |
1116 | } | |
8d5d2d4c TS |
1117 | } else |
1118 | #endif /* CONFIG_VNC_TLS */ | |
70503264 | 1119 | ret = send(vs->csock, (const void *)data, datalen, 0); |
23decc87 | 1120 | VNC_DEBUG("Wrote wire %p %zd -> %ld\n", data, datalen, ret); |
2f9606b3 AL |
1121 | return vnc_client_io_error(vs, ret, socket_error()); |
1122 | } | |
1123 | ||
1124 | ||
1125 | /* | |
1126 | * Called to write buffered data to the client socket, when not | |
1127 | * using any SASL SSF encryption layers. Will write as much data | |
1128 | * as possible without blocking. If all buffered data is written, | |
1129 | * will switch the FD poll() handler back to read monitoring. | |
1130 | * | |
1131 | * Returns the number of bytes written, which may be less than | |
1132 | * the buffered output data if the socket would block. Returns | |
1133 | * -1 on error, and disconnects the client socket. | |
1134 | */ | |
1135 | static long vnc_client_write_plain(VncState *vs) | |
1136 | { | |
1137 | long ret; | |
1138 | ||
1139 | #ifdef CONFIG_VNC_SASL | |
23decc87 | 1140 | VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n", |
2f9606b3 AL |
1141 | vs->output.buffer, vs->output.capacity, vs->output.offset, |
1142 | vs->sasl.waitWriteSSF); | |
1143 | ||
1144 | if (vs->sasl.conn && | |
1145 | vs->sasl.runSSF && | |
1146 | vs->sasl.waitWriteSSF) { | |
1147 | ret = vnc_client_write_buf(vs, vs->output.buffer, vs->sasl.waitWriteSSF); | |
1148 | if (ret) | |
1149 | vs->sasl.waitWriteSSF -= ret; | |
1150 | } else | |
1151 | #endif /* CONFIG_VNC_SASL */ | |
1152 | ret = vnc_client_write_buf(vs, vs->output.buffer, vs->output.offset); | |
24236869 | 1153 | if (!ret) |
2f9606b3 | 1154 | return 0; |
24236869 FB |
1155 | |
1156 | memmove(vs->output.buffer, vs->output.buffer + ret, (vs->output.offset - ret)); | |
1157 | vs->output.offset -= ret; | |
1158 | ||
1159 | if (vs->output.offset == 0) { | |
28a76be8 | 1160 | qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs); |
24236869 | 1161 | } |
2f9606b3 AL |
1162 | |
1163 | return ret; | |
1164 | } | |
1165 | ||
1166 | ||
1167 | /* | |
1168 | * First function called whenever there is data to be written to | |
1169 | * the client socket. Will delegate actual work according to whether | |
1170 | * SASL SSF layers are enabled (thus requiring encryption calls) | |
1171 | */ | |
bd023f95 | 1172 | static void vnc_client_write_locked(void *opaque) |
2f9606b3 | 1173 | { |
2f9606b3 AL |
1174 | VncState *vs = opaque; |
1175 | ||
1176 | #ifdef CONFIG_VNC_SASL | |
1177 | if (vs->sasl.conn && | |
1178 | vs->sasl.runSSF && | |
9678d950 BS |
1179 | !vs->sasl.waitWriteSSF) { |
1180 | vnc_client_write_sasl(vs); | |
1181 | } else | |
2f9606b3 | 1182 | #endif /* CONFIG_VNC_SASL */ |
9678d950 | 1183 | vnc_client_write_plain(vs); |
24236869 FB |
1184 | } |
1185 | ||
bd023f95 CC |
1186 | void vnc_client_write(void *opaque) |
1187 | { | |
1188 | VncState *vs = opaque; | |
1189 | ||
1190 | vnc_lock_output(vs); | |
1191 | if (vs->output.offset) { | |
1192 | vnc_client_write_locked(opaque); | |
ac71103d | 1193 | } else if (vs->csock != -1) { |
bd023f95 CC |
1194 | qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs); |
1195 | } | |
1196 | vnc_unlock_output(vs); | |
1197 | } | |
1198 | ||
5fb6c7a8 | 1199 | void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting) |
24236869 FB |
1200 | { |
1201 | vs->read_handler = func; | |
1202 | vs->read_handler_expect = expecting; | |
1203 | } | |
1204 | ||
2f9606b3 AL |
1205 | |
1206 | /* | |
1207 | * Called to read a chunk of data from the client socket. The data may | |
1208 | * be the raw data, or may need to be further decoded by SASL. | |
1209 | * The data will be read either straight from to the socket, or | |
1210 | * read via the GNUTLS wrappers, if TLS/SSL encryption is enabled | |
1211 | * | |
1212 | * NB, it is theoretically possible to have 2 layers of encryption, | |
1213 | * both SASL, and this TLS layer. It is highly unlikely in practice | |
1214 | * though, since SASL encryption will typically be a no-op if TLS | |
1215 | * is active | |
1216 | * | |
1217 | * Returns the number of bytes read, which may be less than | |
1218 | * the requested 'datalen' if the socket would block. Returns | |
1219 | * -1 on error, and disconnects the client socket. | |
1220 | */ | |
1221 | long vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen) | |
24236869 | 1222 | { |
ceb5caaf | 1223 | long ret; |
eb38c52c | 1224 | #ifdef CONFIG_VNC_TLS |
5fb6c7a8 | 1225 | if (vs->tls.session) { |
28a76be8 AL |
1226 | ret = gnutls_read(vs->tls.session, data, datalen); |
1227 | if (ret < 0) { | |
1228 | if (ret == GNUTLS_E_AGAIN) | |
1229 | errno = EAGAIN; | |
1230 | else | |
1231 | errno = EIO; | |
1232 | ret = -1; | |
1233 | } | |
8d5d2d4c TS |
1234 | } else |
1235 | #endif /* CONFIG_VNC_TLS */ | |
c5b76b38 | 1236 | ret = recv(vs->csock, (void *)data, datalen, 0); |
23decc87 | 1237 | VNC_DEBUG("Read wire %p %zd -> %ld\n", data, datalen, ret); |
2f9606b3 AL |
1238 | return vnc_client_io_error(vs, ret, socket_error()); |
1239 | } | |
24236869 | 1240 | |
2f9606b3 AL |
1241 | |
1242 | /* | |
1243 | * Called to read data from the client socket to the input buffer, | |
1244 | * when not using any SASL SSF encryption layers. Will read as much | |
1245 | * data as possible without blocking. | |
1246 | * | |
1247 | * Returns the number of bytes read. Returns -1 on error, and | |
1248 | * disconnects the client socket. | |
1249 | */ | |
1250 | static long vnc_client_read_plain(VncState *vs) | |
1251 | { | |
1252 | int ret; | |
23decc87 | 1253 | VNC_DEBUG("Read plain %p size %zd offset %zd\n", |
2f9606b3 AL |
1254 | vs->input.buffer, vs->input.capacity, vs->input.offset); |
1255 | buffer_reserve(&vs->input, 4096); | |
1256 | ret = vnc_client_read_buf(vs, buffer_end(&vs->input), 4096); | |
1257 | if (!ret) | |
1258 | return 0; | |
24236869 | 1259 | vs->input.offset += ret; |
2f9606b3 AL |
1260 | return ret; |
1261 | } | |
1262 | ||
1263 | ||
1264 | /* | |
1265 | * First function called whenever there is more data to be read from | |
1266 | * the client socket. Will delegate actual work according to whether | |
1267 | * SASL SSF layers are enabled (thus requiring decryption calls) | |
1268 | */ | |
1269 | void vnc_client_read(void *opaque) | |
1270 | { | |
1271 | VncState *vs = opaque; | |
1272 | long ret; | |
1273 | ||
1274 | #ifdef CONFIG_VNC_SASL | |
1275 | if (vs->sasl.conn && vs->sasl.runSSF) | |
1276 | ret = vnc_client_read_sasl(vs); | |
1277 | else | |
1278 | #endif /* CONFIG_VNC_SASL */ | |
1279 | ret = vnc_client_read_plain(vs); | |
198a0039 GH |
1280 | if (!ret) { |
1281 | if (vs->csock == -1) | |
1282 | vnc_disconnect_finish(vs); | |
28a76be8 | 1283 | return; |
198a0039 | 1284 | } |
24236869 FB |
1285 | |
1286 | while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) { | |
28a76be8 AL |
1287 | size_t len = vs->read_handler_expect; |
1288 | int ret; | |
1289 | ||
1290 | ret = vs->read_handler(vs, vs->input.buffer, len); | |
198a0039 GH |
1291 | if (vs->csock == -1) { |
1292 | vnc_disconnect_finish(vs); | |
28a76be8 | 1293 | return; |
198a0039 | 1294 | } |
28a76be8 AL |
1295 | |
1296 | if (!ret) { | |
1297 | memmove(vs->input.buffer, vs->input.buffer + len, (vs->input.offset - len)); | |
1298 | vs->input.offset -= len; | |
1299 | } else { | |
1300 | vs->read_handler_expect = ret; | |
1301 | } | |
24236869 FB |
1302 | } |
1303 | } | |
1304 | ||
5fb6c7a8 | 1305 | void vnc_write(VncState *vs, const void *data, size_t len) |
24236869 FB |
1306 | { |
1307 | buffer_reserve(&vs->output, len); | |
1308 | ||
198a0039 | 1309 | if (vs->csock != -1 && buffer_empty(&vs->output)) { |
28a76be8 | 1310 | qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs); |
24236869 FB |
1311 | } |
1312 | ||
1313 | buffer_append(&vs->output, data, len); | |
1314 | } | |
1315 | ||
5fb6c7a8 | 1316 | void vnc_write_s32(VncState *vs, int32_t value) |
24236869 FB |
1317 | { |
1318 | vnc_write_u32(vs, *(uint32_t *)&value); | |
1319 | } | |
1320 | ||
5fb6c7a8 | 1321 | void vnc_write_u32(VncState *vs, uint32_t value) |
24236869 FB |
1322 | { |
1323 | uint8_t buf[4]; | |
1324 | ||
1325 | buf[0] = (value >> 24) & 0xFF; | |
1326 | buf[1] = (value >> 16) & 0xFF; | |
1327 | buf[2] = (value >> 8) & 0xFF; | |
1328 | buf[3] = value & 0xFF; | |
1329 | ||
1330 | vnc_write(vs, buf, 4); | |
1331 | } | |
1332 | ||
5fb6c7a8 | 1333 | void vnc_write_u16(VncState *vs, uint16_t value) |
24236869 | 1334 | { |
64f5a135 | 1335 | uint8_t buf[2]; |
24236869 FB |
1336 | |
1337 | buf[0] = (value >> 8) & 0xFF; | |
1338 | buf[1] = value & 0xFF; | |
1339 | ||
1340 | vnc_write(vs, buf, 2); | |
1341 | } | |
1342 | ||
5fb6c7a8 | 1343 | void vnc_write_u8(VncState *vs, uint8_t value) |
24236869 FB |
1344 | { |
1345 | vnc_write(vs, (char *)&value, 1); | |
1346 | } | |
1347 | ||
5fb6c7a8 | 1348 | void vnc_flush(VncState *vs) |
24236869 | 1349 | { |
bd023f95 CC |
1350 | vnc_lock_output(vs); |
1351 | if (vs->csock != -1 && vs->output.offset) { | |
1352 | vnc_client_write_locked(vs); | |
1353 | } | |
1354 | vnc_unlock_output(vs); | |
24236869 FB |
1355 | } |
1356 | ||
5fb6c7a8 | 1357 | uint8_t read_u8(uint8_t *data, size_t offset) |
24236869 FB |
1358 | { |
1359 | return data[offset]; | |
1360 | } | |
1361 | ||
5fb6c7a8 | 1362 | uint16_t read_u16(uint8_t *data, size_t offset) |
24236869 FB |
1363 | { |
1364 | return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF); | |
1365 | } | |
1366 | ||
5fb6c7a8 | 1367 | int32_t read_s32(uint8_t *data, size_t offset) |
24236869 FB |
1368 | { |
1369 | return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) | | |
28a76be8 | 1370 | (data[offset + 2] << 8) | data[offset + 3]); |
24236869 FB |
1371 | } |
1372 | ||
5fb6c7a8 | 1373 | uint32_t read_u32(uint8_t *data, size_t offset) |
24236869 FB |
1374 | { |
1375 | return ((data[offset] << 24) | (data[offset + 1] << 16) | | |
28a76be8 | 1376 | (data[offset + 2] << 8) | data[offset + 3]); |
24236869 FB |
1377 | } |
1378 | ||
60fe76f3 | 1379 | static void client_cut_text(VncState *vs, size_t len, uint8_t *text) |
24236869 FB |
1380 | { |
1381 | } | |
1382 | ||
37c34d9d | 1383 | static void check_pointer_type_change(Notifier *notifier) |
564c337e | 1384 | { |
37c34d9d AL |
1385 | VncState *vs = container_of(notifier, VncState, mouse_mode_notifier); |
1386 | int absolute = kbd_mouse_is_absolute(); | |
1387 | ||
29fa4ed9 | 1388 | if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE) && vs->absolute != absolute) { |
bd023f95 | 1389 | vnc_lock_output(vs); |
46a183da | 1390 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
28a76be8 AL |
1391 | vnc_write_u8(vs, 0); |
1392 | vnc_write_u16(vs, 1); | |
1393 | vnc_framebuffer_update(vs, absolute, 0, | |
1394 | ds_get_width(vs->ds), ds_get_height(vs->ds), | |
29fa4ed9 | 1395 | VNC_ENCODING_POINTER_TYPE_CHANGE); |
bd023f95 | 1396 | vnc_unlock_output(vs); |
28a76be8 | 1397 | vnc_flush(vs); |
564c337e FB |
1398 | } |
1399 | vs->absolute = absolute; | |
1400 | } | |
1401 | ||
24236869 FB |
1402 | static void pointer_event(VncState *vs, int button_mask, int x, int y) |
1403 | { | |
1404 | int buttons = 0; | |
1405 | int dz = 0; | |
1406 | ||
1407 | if (button_mask & 0x01) | |
28a76be8 | 1408 | buttons |= MOUSE_EVENT_LBUTTON; |
24236869 | 1409 | if (button_mask & 0x02) |
28a76be8 | 1410 | buttons |= MOUSE_EVENT_MBUTTON; |
24236869 | 1411 | if (button_mask & 0x04) |
28a76be8 | 1412 | buttons |= MOUSE_EVENT_RBUTTON; |
24236869 | 1413 | if (button_mask & 0x08) |
28a76be8 | 1414 | dz = -1; |
24236869 | 1415 | if (button_mask & 0x10) |
28a76be8 | 1416 | dz = 1; |
564c337e FB |
1417 | |
1418 | if (vs->absolute) { | |
cc39a92c CW |
1419 | kbd_mouse_event(ds_get_width(vs->ds) > 1 ? |
1420 | x * 0x7FFF / (ds_get_width(vs->ds) - 1) : 0x4000, | |
1421 | ds_get_height(vs->ds) > 1 ? | |
1422 | y * 0x7FFF / (ds_get_height(vs->ds) - 1) : 0x4000, | |
28a76be8 | 1423 | dz, buttons); |
29fa4ed9 | 1424 | } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) { |
28a76be8 AL |
1425 | x -= 0x7FFF; |
1426 | y -= 0x7FFF; | |
24236869 | 1427 | |
28a76be8 | 1428 | kbd_mouse_event(x, y, dz, buttons); |
564c337e | 1429 | } else { |
28a76be8 AL |
1430 | if (vs->last_x != -1) |
1431 | kbd_mouse_event(x - vs->last_x, | |
1432 | y - vs->last_y, | |
1433 | dz, buttons); | |
1434 | vs->last_x = x; | |
1435 | vs->last_y = y; | |
24236869 FB |
1436 | } |
1437 | } | |
1438 | ||
64f5a135 FB |
1439 | static void reset_keys(VncState *vs) |
1440 | { | |
1441 | int i; | |
1442 | for(i = 0; i < 256; i++) { | |
1443 | if (vs->modifiers_state[i]) { | |
44bb61c8 ST |
1444 | if (i & SCANCODE_GREY) |
1445 | kbd_put_keycode(SCANCODE_EMUL0); | |
1446 | kbd_put_keycode(i | SCANCODE_UP); | |
64f5a135 FB |
1447 | vs->modifiers_state[i] = 0; |
1448 | } | |
1449 | } | |
1450 | } | |
1451 | ||
a528b80c AZ |
1452 | static void press_key(VncState *vs, int keysym) |
1453 | { | |
44bb61c8 ST |
1454 | int keycode = keysym2scancode(vs->vd->kbd_layout, keysym) & SCANCODE_KEYMASK; |
1455 | if (keycode & SCANCODE_GREY) | |
1456 | kbd_put_keycode(SCANCODE_EMUL0); | |
1457 | kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK); | |
1458 | if (keycode & SCANCODE_GREY) | |
1459 | kbd_put_keycode(SCANCODE_EMUL0); | |
1460 | kbd_put_keycode(keycode | SCANCODE_UP); | |
a528b80c AZ |
1461 | } |
1462 | ||
7ffb82ca GH |
1463 | static void kbd_leds(void *opaque, int ledstate) |
1464 | { | |
1465 | VncState *vs = opaque; | |
1466 | int caps, num; | |
1467 | ||
1468 | caps = ledstate & QEMU_CAPS_LOCK_LED ? 1 : 0; | |
1469 | num = ledstate & QEMU_NUM_LOCK_LED ? 1 : 0; | |
1470 | ||
1471 | if (vs->modifiers_state[0x3a] != caps) { | |
1472 | vs->modifiers_state[0x3a] = caps; | |
1473 | } | |
1474 | if (vs->modifiers_state[0x45] != num) { | |
1475 | vs->modifiers_state[0x45] = num; | |
1476 | } | |
1477 | } | |
1478 | ||
9ca313aa | 1479 | static void do_key_event(VncState *vs, int down, int keycode, int sym) |
24236869 | 1480 | { |
64f5a135 FB |
1481 | /* QEMU console switch */ |
1482 | switch(keycode) { | |
1483 | case 0x2a: /* Left Shift */ | |
1484 | case 0x36: /* Right Shift */ | |
1485 | case 0x1d: /* Left CTRL */ | |
1486 | case 0x9d: /* Right CTRL */ | |
1487 | case 0x38: /* Left ALT */ | |
1488 | case 0xb8: /* Right ALT */ | |
1489 | if (down) | |
1490 | vs->modifiers_state[keycode] = 1; | |
1491 | else | |
1492 | vs->modifiers_state[keycode] = 0; | |
1493 | break; | |
5fafdf24 | 1494 | case 0x02 ... 0x0a: /* '1' to '9' keys */ |
64f5a135 FB |
1495 | if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) { |
1496 | /* Reset the modifiers sent to the current console */ | |
1497 | reset_keys(vs); | |
1498 | console_select(keycode - 0x02); | |
1499 | return; | |
1500 | } | |
1501 | break; | |
28a76be8 AL |
1502 | case 0x3a: /* CapsLock */ |
1503 | case 0x45: /* NumLock */ | |
7ffb82ca | 1504 | if (down) |
a528b80c AZ |
1505 | vs->modifiers_state[keycode] ^= 1; |
1506 | break; | |
1507 | } | |
1508 | ||
9892088b | 1509 | if (down && vs->vd->lock_key_sync && |
3a0558b5 | 1510 | keycode_is_keypad(vs->vd->kbd_layout, keycode)) { |
a528b80c AZ |
1511 | /* If the numlock state needs to change then simulate an additional |
1512 | keypress before sending this one. This will happen if the user | |
1513 | toggles numlock away from the VNC window. | |
1514 | */ | |
753b4053 | 1515 | if (keysym_is_numlock(vs->vd->kbd_layout, sym & 0xFFFF)) { |
a528b80c AZ |
1516 | if (!vs->modifiers_state[0x45]) { |
1517 | vs->modifiers_state[0x45] = 1; | |
1518 | press_key(vs, 0xff7f); | |
1519 | } | |
1520 | } else { | |
1521 | if (vs->modifiers_state[0x45]) { | |
1522 | vs->modifiers_state[0x45] = 0; | |
1523 | press_key(vs, 0xff7f); | |
1524 | } | |
1525 | } | |
64f5a135 | 1526 | } |
24236869 | 1527 | |
9892088b | 1528 | if (down && vs->vd->lock_key_sync && |
3a0558b5 | 1529 | ((sym >= 'A' && sym <= 'Z') || (sym >= 'a' && sym <= 'z'))) { |
6b132502 GH |
1530 | /* If the capslock state needs to change then simulate an additional |
1531 | keypress before sending this one. This will happen if the user | |
1532 | toggles capslock away from the VNC window. | |
1533 | */ | |
1534 | int uppercase = !!(sym >= 'A' && sym <= 'Z'); | |
1535 | int shift = !!(vs->modifiers_state[0x2a] | vs->modifiers_state[0x36]); | |
1536 | int capslock = !!(vs->modifiers_state[0x3a]); | |
1537 | if (capslock) { | |
1538 | if (uppercase == shift) { | |
1539 | vs->modifiers_state[0x3a] = 0; | |
1540 | press_key(vs, 0xffe5); | |
1541 | } | |
1542 | } else { | |
1543 | if (uppercase != shift) { | |
1544 | vs->modifiers_state[0x3a] = 1; | |
1545 | press_key(vs, 0xffe5); | |
1546 | } | |
1547 | } | |
1548 | } | |
1549 | ||
64f5a135 | 1550 | if (is_graphic_console()) { |
44bb61c8 ST |
1551 | if (keycode & SCANCODE_GREY) |
1552 | kbd_put_keycode(SCANCODE_EMUL0); | |
64f5a135 | 1553 | if (down) |
44bb61c8 | 1554 | kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK); |
64f5a135 | 1555 | else |
44bb61c8 | 1556 | kbd_put_keycode(keycode | SCANCODE_UP); |
64f5a135 FB |
1557 | } else { |
1558 | /* QEMU console emulation */ | |
1559 | if (down) { | |
bb0a18e1 | 1560 | int numlock = vs->modifiers_state[0x45]; |
64f5a135 FB |
1561 | switch (keycode) { |
1562 | case 0x2a: /* Left Shift */ | |
1563 | case 0x36: /* Right Shift */ | |
1564 | case 0x1d: /* Left CTRL */ | |
1565 | case 0x9d: /* Right CTRL */ | |
1566 | case 0x38: /* Left ALT */ | |
1567 | case 0xb8: /* Right ALT */ | |
1568 | break; | |
1569 | case 0xc8: | |
1570 | kbd_put_keysym(QEMU_KEY_UP); | |
1571 | break; | |
1572 | case 0xd0: | |
1573 | kbd_put_keysym(QEMU_KEY_DOWN); | |
1574 | break; | |
1575 | case 0xcb: | |
1576 | kbd_put_keysym(QEMU_KEY_LEFT); | |
1577 | break; | |
1578 | case 0xcd: | |
1579 | kbd_put_keysym(QEMU_KEY_RIGHT); | |
1580 | break; | |
1581 | case 0xd3: | |
1582 | kbd_put_keysym(QEMU_KEY_DELETE); | |
1583 | break; | |
1584 | case 0xc7: | |
1585 | kbd_put_keysym(QEMU_KEY_HOME); | |
1586 | break; | |
1587 | case 0xcf: | |
1588 | kbd_put_keysym(QEMU_KEY_END); | |
1589 | break; | |
1590 | case 0xc9: | |
1591 | kbd_put_keysym(QEMU_KEY_PAGEUP); | |
1592 | break; | |
1593 | case 0xd1: | |
1594 | kbd_put_keysym(QEMU_KEY_PAGEDOWN); | |
1595 | break; | |
bb0a18e1 GH |
1596 | |
1597 | case 0x47: | |
1598 | kbd_put_keysym(numlock ? '7' : QEMU_KEY_HOME); | |
1599 | break; | |
1600 | case 0x48: | |
1601 | kbd_put_keysym(numlock ? '8' : QEMU_KEY_UP); | |
1602 | break; | |
1603 | case 0x49: | |
1604 | kbd_put_keysym(numlock ? '9' : QEMU_KEY_PAGEUP); | |
1605 | break; | |
1606 | case 0x4b: | |
1607 | kbd_put_keysym(numlock ? '4' : QEMU_KEY_LEFT); | |
1608 | break; | |
1609 | case 0x4c: | |
1610 | kbd_put_keysym('5'); | |
1611 | break; | |
1612 | case 0x4d: | |
1613 | kbd_put_keysym(numlock ? '6' : QEMU_KEY_RIGHT); | |
1614 | break; | |
1615 | case 0x4f: | |
1616 | kbd_put_keysym(numlock ? '1' : QEMU_KEY_END); | |
1617 | break; | |
1618 | case 0x50: | |
1619 | kbd_put_keysym(numlock ? '2' : QEMU_KEY_DOWN); | |
1620 | break; | |
1621 | case 0x51: | |
1622 | kbd_put_keysym(numlock ? '3' : QEMU_KEY_PAGEDOWN); | |
1623 | break; | |
1624 | case 0x52: | |
1625 | kbd_put_keysym('0'); | |
1626 | break; | |
1627 | case 0x53: | |
1628 | kbd_put_keysym(numlock ? '.' : QEMU_KEY_DELETE); | |
1629 | break; | |
1630 | ||
1631 | case 0xb5: | |
1632 | kbd_put_keysym('/'); | |
1633 | break; | |
1634 | case 0x37: | |
1635 | kbd_put_keysym('*'); | |
1636 | break; | |
1637 | case 0x4a: | |
1638 | kbd_put_keysym('-'); | |
1639 | break; | |
1640 | case 0x4e: | |
1641 | kbd_put_keysym('+'); | |
1642 | break; | |
1643 | case 0x9c: | |
1644 | kbd_put_keysym('\n'); | |
1645 | break; | |
1646 | ||
64f5a135 FB |
1647 | default: |
1648 | kbd_put_keysym(sym); | |
1649 | break; | |
1650 | } | |
1651 | } | |
1652 | } | |
24236869 FB |
1653 | } |
1654 | ||
bdbd7676 FB |
1655 | static void key_event(VncState *vs, int down, uint32_t sym) |
1656 | { | |
9ca313aa | 1657 | int keycode; |
4a93fe17 | 1658 | int lsym = sym; |
9ca313aa | 1659 | |
4a93fe17 GH |
1660 | if (lsym >= 'A' && lsym <= 'Z' && is_graphic_console()) { |
1661 | lsym = lsym - 'A' + 'a'; | |
1662 | } | |
9ca313aa | 1663 | |
44bb61c8 | 1664 | keycode = keysym2scancode(vs->vd->kbd_layout, lsym & 0xFFFF) & SCANCODE_KEYMASK; |
9ca313aa AL |
1665 | do_key_event(vs, down, keycode, sym); |
1666 | } | |
1667 | ||
1668 | static void ext_key_event(VncState *vs, int down, | |
1669 | uint32_t sym, uint16_t keycode) | |
1670 | { | |
1671 | /* if the user specifies a keyboard layout, always use it */ | |
1672 | if (keyboard_layout) | |
1673 | key_event(vs, down, sym); | |
1674 | else | |
1675 | do_key_event(vs, down, keycode, sym); | |
bdbd7676 FB |
1676 | } |
1677 | ||
24236869 | 1678 | static void framebuffer_update_request(VncState *vs, int incremental, |
28a76be8 AL |
1679 | int x_position, int y_position, |
1680 | int w, int h) | |
24236869 | 1681 | { |
0e1f5a0c AL |
1682 | if (y_position > ds_get_height(vs->ds)) |
1683 | y_position = ds_get_height(vs->ds); | |
0e1f5a0c AL |
1684 | if (y_position + h >= ds_get_height(vs->ds)) |
1685 | h = ds_get_height(vs->ds) - y_position; | |
cf2d385c | 1686 | |
24236869 FB |
1687 | int i; |
1688 | vs->need_update = 1; | |
1689 | if (!incremental) { | |
24cf0a6e | 1690 | vs->force_update = 1; |
28a76be8 | 1691 | for (i = 0; i < h; i++) { |
1fc62412 | 1692 | vnc_set_bits(vs->dirty[y_position + i], |
0e1f5a0c | 1693 | (ds_get_width(vs->ds) / 16), VNC_DIRTY_WORDS); |
28a76be8 | 1694 | } |
24236869 FB |
1695 | } |
1696 | } | |
1697 | ||
9ca313aa AL |
1698 | static void send_ext_key_event_ack(VncState *vs) |
1699 | { | |
bd023f95 | 1700 | vnc_lock_output(vs); |
46a183da | 1701 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
9ca313aa AL |
1702 | vnc_write_u8(vs, 0); |
1703 | vnc_write_u16(vs, 1); | |
29fa4ed9 AL |
1704 | vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), ds_get_height(vs->ds), |
1705 | VNC_ENCODING_EXT_KEY_EVENT); | |
bd023f95 | 1706 | vnc_unlock_output(vs); |
9ca313aa AL |
1707 | vnc_flush(vs); |
1708 | } | |
1709 | ||
429a8ed3 | 1710 | static void send_ext_audio_ack(VncState *vs) |
1711 | { | |
bd023f95 | 1712 | vnc_lock_output(vs); |
46a183da | 1713 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
429a8ed3 | 1714 | vnc_write_u8(vs, 0); |
1715 | vnc_write_u16(vs, 1); | |
29fa4ed9 AL |
1716 | vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), ds_get_height(vs->ds), |
1717 | VNC_ENCODING_AUDIO); | |
bd023f95 | 1718 | vnc_unlock_output(vs); |
429a8ed3 | 1719 | vnc_flush(vs); |
1720 | } | |
1721 | ||
24236869 FB |
1722 | static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) |
1723 | { | |
1724 | int i; | |
29fa4ed9 | 1725 | unsigned int enc = 0; |
24236869 | 1726 | |
29fa4ed9 | 1727 | vs->features = 0; |
a9f20d31 | 1728 | vs->vnc_encoding = 0; |
d1af0e05 CC |
1729 | vs->tight.compression = 9; |
1730 | vs->tight.quality = -1; /* Lossless by default */ | |
564c337e | 1731 | vs->absolute = -1; |
24236869 | 1732 | |
8a0f0d0c CC |
1733 | /* |
1734 | * Start from the end because the encodings are sent in order of preference. | |
1735 | * This way the prefered encoding (first encoding defined in the array) | |
1736 | * will be set at the end of the loop. | |
1737 | */ | |
24236869 | 1738 | for (i = n_encodings - 1; i >= 0; i--) { |
29fa4ed9 AL |
1739 | enc = encodings[i]; |
1740 | switch (enc) { | |
1741 | case VNC_ENCODING_RAW: | |
a9f20d31 | 1742 | vs->vnc_encoding = enc; |
29fa4ed9 AL |
1743 | break; |
1744 | case VNC_ENCODING_COPYRECT: | |
753b4053 | 1745 | vs->features |= VNC_FEATURE_COPYRECT_MASK; |
29fa4ed9 AL |
1746 | break; |
1747 | case VNC_ENCODING_HEXTILE: | |
1748 | vs->features |= VNC_FEATURE_HEXTILE_MASK; | |
a9f20d31 | 1749 | vs->vnc_encoding = enc; |
29fa4ed9 | 1750 | break; |
380282b0 CC |
1751 | case VNC_ENCODING_TIGHT: |
1752 | vs->features |= VNC_FEATURE_TIGHT_MASK; | |
1753 | vs->vnc_encoding = enc; | |
1754 | break; | |
efe556ad CC |
1755 | case VNC_ENCODING_TIGHT_PNG: |
1756 | vs->features |= VNC_FEATURE_TIGHT_PNG_MASK; | |
1757 | vs->vnc_encoding = enc; | |
1758 | break; | |
059cef40 AL |
1759 | case VNC_ENCODING_ZLIB: |
1760 | vs->features |= VNC_FEATURE_ZLIB_MASK; | |
a9f20d31 | 1761 | vs->vnc_encoding = enc; |
059cef40 | 1762 | break; |
29fa4ed9 AL |
1763 | case VNC_ENCODING_DESKTOPRESIZE: |
1764 | vs->features |= VNC_FEATURE_RESIZE_MASK; | |
1765 | break; | |
1766 | case VNC_ENCODING_POINTER_TYPE_CHANGE: | |
1767 | vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK; | |
1768 | break; | |
d467b679 GH |
1769 | case VNC_ENCODING_RICH_CURSOR: |
1770 | vs->features |= VNC_FEATURE_RICH_CURSOR_MASK; | |
1771 | break; | |
29fa4ed9 | 1772 | case VNC_ENCODING_EXT_KEY_EVENT: |
9ca313aa AL |
1773 | send_ext_key_event_ack(vs); |
1774 | break; | |
29fa4ed9 | 1775 | case VNC_ENCODING_AUDIO: |
429a8ed3 | 1776 | send_ext_audio_ack(vs); |
1777 | break; | |
29fa4ed9 AL |
1778 | case VNC_ENCODING_WMVi: |
1779 | vs->features |= VNC_FEATURE_WMVI_MASK; | |
ca4cca4d | 1780 | break; |
fb437313 | 1781 | case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9: |
d1af0e05 | 1782 | vs->tight.compression = (enc & 0x0F); |
fb437313 AL |
1783 | break; |
1784 | case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9: | |
b31f519e CC |
1785 | if (vs->vd->lossy) { |
1786 | vs->tight.quality = (enc & 0x0F); | |
1787 | } | |
fb437313 | 1788 | break; |
29fa4ed9 AL |
1789 | default: |
1790 | VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc); | |
1791 | break; | |
1792 | } | |
24236869 | 1793 | } |
6356e472 | 1794 | vnc_desktop_resize(vs); |
0684bf1b | 1795 | check_pointer_type_change(&vs->mouse_mode_notifier); |
24236869 FB |
1796 | } |
1797 | ||
6cec5487 AL |
1798 | static void set_pixel_conversion(VncState *vs) |
1799 | { | |
1800 | if ((vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) == | |
1801 | (vs->ds->surface->flags & QEMU_BIG_ENDIAN_FLAG) && | |
1802 | !memcmp(&(vs->clientds.pf), &(vs->ds->surface->pf), sizeof(PixelFormat))) { | |
1803 | vs->write_pixels = vnc_write_pixels_copy; | |
70a4568f | 1804 | vnc_hextile_set_pixel_conversion(vs, 0); |
6cec5487 AL |
1805 | } else { |
1806 | vs->write_pixels = vnc_write_pixels_generic; | |
70a4568f | 1807 | vnc_hextile_set_pixel_conversion(vs, 1); |
6cec5487 AL |
1808 | } |
1809 | } | |
1810 | ||
24236869 | 1811 | static void set_pixel_format(VncState *vs, |
28a76be8 AL |
1812 | int bits_per_pixel, int depth, |
1813 | int big_endian_flag, int true_color_flag, | |
1814 | int red_max, int green_max, int blue_max, | |
1815 | int red_shift, int green_shift, int blue_shift) | |
24236869 | 1816 | { |
3512779a | 1817 | if (!true_color_flag) { |
28a76be8 | 1818 | vnc_client_error(vs); |
3512779a FB |
1819 | return; |
1820 | } | |
24236869 | 1821 | |
1fc62412 | 1822 | vs->clientds = *(vs->vd->guest.ds); |
6cec5487 | 1823 | vs->clientds.pf.rmax = red_max; |
90a1e3c0 | 1824 | count_bits(vs->clientds.pf.rbits, red_max); |
6cec5487 AL |
1825 | vs->clientds.pf.rshift = red_shift; |
1826 | vs->clientds.pf.rmask = red_max << red_shift; | |
1827 | vs->clientds.pf.gmax = green_max; | |
90a1e3c0 | 1828 | count_bits(vs->clientds.pf.gbits, green_max); |
6cec5487 AL |
1829 | vs->clientds.pf.gshift = green_shift; |
1830 | vs->clientds.pf.gmask = green_max << green_shift; | |
1831 | vs->clientds.pf.bmax = blue_max; | |
90a1e3c0 | 1832 | count_bits(vs->clientds.pf.bbits, blue_max); |
6cec5487 AL |
1833 | vs->clientds.pf.bshift = blue_shift; |
1834 | vs->clientds.pf.bmask = blue_max << blue_shift; | |
1835 | vs->clientds.pf.bits_per_pixel = bits_per_pixel; | |
1836 | vs->clientds.pf.bytes_per_pixel = bits_per_pixel / 8; | |
1837 | vs->clientds.pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel; | |
1838 | vs->clientds.flags = big_endian_flag ? QEMU_BIG_ENDIAN_FLAG : 0x00; | |
1839 | ||
1840 | set_pixel_conversion(vs); | |
24236869 FB |
1841 | |
1842 | vga_hw_invalidate(); | |
1843 | vga_hw_update(); | |
1844 | } | |
1845 | ||
ca4cca4d AL |
1846 | static void pixel_format_message (VncState *vs) { |
1847 | char pad[3] = { 0, 0, 0 }; | |
1848 | ||
6cec5487 AL |
1849 | vnc_write_u8(vs, vs->ds->surface->pf.bits_per_pixel); /* bits-per-pixel */ |
1850 | vnc_write_u8(vs, vs->ds->surface->pf.depth); /* depth */ | |
ca4cca4d | 1851 | |
e2542fe2 | 1852 | #ifdef HOST_WORDS_BIGENDIAN |
ca4cca4d AL |
1853 | vnc_write_u8(vs, 1); /* big-endian-flag */ |
1854 | #else | |
1855 | vnc_write_u8(vs, 0); /* big-endian-flag */ | |
1856 | #endif | |
1857 | vnc_write_u8(vs, 1); /* true-color-flag */ | |
6cec5487 AL |
1858 | vnc_write_u16(vs, vs->ds->surface->pf.rmax); /* red-max */ |
1859 | vnc_write_u16(vs, vs->ds->surface->pf.gmax); /* green-max */ | |
1860 | vnc_write_u16(vs, vs->ds->surface->pf.bmax); /* blue-max */ | |
1861 | vnc_write_u8(vs, vs->ds->surface->pf.rshift); /* red-shift */ | |
1862 | vnc_write_u8(vs, vs->ds->surface->pf.gshift); /* green-shift */ | |
1863 | vnc_write_u8(vs, vs->ds->surface->pf.bshift); /* blue-shift */ | |
70a4568f CC |
1864 | |
1865 | vnc_hextile_set_pixel_conversion(vs, 0); | |
1866 | ||
6cec5487 | 1867 | vs->clientds = *(vs->ds->surface); |
3cded540 | 1868 | vs->clientds.flags &= ~QEMU_ALLOCATED_FLAG; |
ca4cca4d AL |
1869 | vs->write_pixels = vnc_write_pixels_copy; |
1870 | ||
1871 | vnc_write(vs, pad, 3); /* padding */ | |
1872 | } | |
1873 | ||
7d957bd8 AL |
1874 | static void vnc_dpy_setdata(DisplayState *ds) |
1875 | { | |
1876 | /* We don't have to do anything */ | |
1877 | } | |
1878 | ||
753b4053 | 1879 | static void vnc_colordepth(VncState *vs) |
7eac3a87 | 1880 | { |
753b4053 | 1881 | if (vnc_has_feature(vs, VNC_FEATURE_WMVI)) { |
ca4cca4d | 1882 | /* Sending a WMVi message to notify the client*/ |
bd023f95 | 1883 | vnc_lock_output(vs); |
46a183da | 1884 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
ca4cca4d AL |
1885 | vnc_write_u8(vs, 0); |
1886 | vnc_write_u16(vs, 1); /* number of rects */ | |
753b4053 AL |
1887 | vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), |
1888 | ds_get_height(vs->ds), VNC_ENCODING_WMVi); | |
ca4cca4d | 1889 | pixel_format_message(vs); |
bd023f95 | 1890 | vnc_unlock_output(vs); |
ca4cca4d | 1891 | vnc_flush(vs); |
7eac3a87 | 1892 | } else { |
6cec5487 | 1893 | set_pixel_conversion(vs); |
7eac3a87 AL |
1894 | } |
1895 | } | |
1896 | ||
60fe76f3 | 1897 | static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len) |
24236869 FB |
1898 | { |
1899 | int i; | |
1900 | uint16_t limit; | |
2430ffe4 SS |
1901 | VncDisplay *vd = vs->vd; |
1902 | ||
1903 | if (data[0] > 3) { | |
1904 | vd->timer_interval = VNC_REFRESH_INTERVAL_BASE; | |
1905 | if (!qemu_timer_expired(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval)) | |
1906 | qemu_mod_timer(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval); | |
1907 | } | |
24236869 FB |
1908 | |
1909 | switch (data[0]) { | |
46a183da | 1910 | case VNC_MSG_CLIENT_SET_PIXEL_FORMAT: |
28a76be8 AL |
1911 | if (len == 1) |
1912 | return 20; | |
1913 | ||
1914 | set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5), | |
1915 | read_u8(data, 6), read_u8(data, 7), | |
1916 | read_u16(data, 8), read_u16(data, 10), | |
1917 | read_u16(data, 12), read_u8(data, 14), | |
1918 | read_u8(data, 15), read_u8(data, 16)); | |
1919 | break; | |
46a183da | 1920 | case VNC_MSG_CLIENT_SET_ENCODINGS: |
28a76be8 AL |
1921 | if (len == 1) |
1922 | return 4; | |
24236869 | 1923 | |
28a76be8 | 1924 | if (len == 4) { |
69dd5c9f AL |
1925 | limit = read_u16(data, 2); |
1926 | if (limit > 0) | |
1927 | return 4 + (limit * 4); | |
1928 | } else | |
1929 | limit = read_u16(data, 2); | |
24236869 | 1930 | |
28a76be8 AL |
1931 | for (i = 0; i < limit; i++) { |
1932 | int32_t val = read_s32(data, 4 + (i * 4)); | |
1933 | memcpy(data + 4 + (i * 4), &val, sizeof(val)); | |
1934 | } | |
24236869 | 1935 | |
28a76be8 AL |
1936 | set_encodings(vs, (int32_t *)(data + 4), limit); |
1937 | break; | |
46a183da | 1938 | case VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST: |
28a76be8 AL |
1939 | if (len == 1) |
1940 | return 10; | |
24236869 | 1941 | |
28a76be8 AL |
1942 | framebuffer_update_request(vs, |
1943 | read_u8(data, 1), read_u16(data, 2), read_u16(data, 4), | |
1944 | read_u16(data, 6), read_u16(data, 8)); | |
1945 | break; | |
46a183da | 1946 | case VNC_MSG_CLIENT_KEY_EVENT: |
28a76be8 AL |
1947 | if (len == 1) |
1948 | return 8; | |
24236869 | 1949 | |
28a76be8 AL |
1950 | key_event(vs, read_u8(data, 1), read_u32(data, 4)); |
1951 | break; | |
46a183da | 1952 | case VNC_MSG_CLIENT_POINTER_EVENT: |
28a76be8 AL |
1953 | if (len == 1) |
1954 | return 6; | |
24236869 | 1955 | |
28a76be8 AL |
1956 | pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4)); |
1957 | break; | |
46a183da | 1958 | case VNC_MSG_CLIENT_CUT_TEXT: |
28a76be8 AL |
1959 | if (len == 1) |
1960 | return 8; | |
24236869 | 1961 | |
28a76be8 | 1962 | if (len == 8) { |
baa7666c TS |
1963 | uint32_t dlen = read_u32(data, 4); |
1964 | if (dlen > 0) | |
1965 | return 8 + dlen; | |
1966 | } | |
24236869 | 1967 | |
28a76be8 AL |
1968 | client_cut_text(vs, read_u32(data, 4), data + 8); |
1969 | break; | |
46a183da | 1970 | case VNC_MSG_CLIENT_QEMU: |
9ca313aa AL |
1971 | if (len == 1) |
1972 | return 2; | |
1973 | ||
1974 | switch (read_u8(data, 1)) { | |
46a183da | 1975 | case VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT: |
9ca313aa AL |
1976 | if (len == 2) |
1977 | return 12; | |
1978 | ||
1979 | ext_key_event(vs, read_u16(data, 2), | |
1980 | read_u32(data, 4), read_u32(data, 8)); | |
1981 | break; | |
46a183da | 1982 | case VNC_MSG_CLIENT_QEMU_AUDIO: |
429a8ed3 | 1983 | if (len == 2) |
1984 | return 4; | |
1985 | ||
1986 | switch (read_u16 (data, 2)) { | |
46a183da | 1987 | case VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE: |
429a8ed3 | 1988 | audio_add(vs); |
1989 | break; | |
46a183da | 1990 | case VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE: |
429a8ed3 | 1991 | audio_del(vs); |
1992 | break; | |
46a183da | 1993 | case VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT: |
429a8ed3 | 1994 | if (len == 4) |
1995 | return 10; | |
1996 | switch (read_u8(data, 4)) { | |
1997 | case 0: vs->as.fmt = AUD_FMT_U8; break; | |
1998 | case 1: vs->as.fmt = AUD_FMT_S8; break; | |
1999 | case 2: vs->as.fmt = AUD_FMT_U16; break; | |
2000 | case 3: vs->as.fmt = AUD_FMT_S16; break; | |
2001 | case 4: vs->as.fmt = AUD_FMT_U32; break; | |
2002 | case 5: vs->as.fmt = AUD_FMT_S32; break; | |
2003 | default: | |
2004 | printf("Invalid audio format %d\n", read_u8(data, 4)); | |
2005 | vnc_client_error(vs); | |
2006 | break; | |
2007 | } | |
2008 | vs->as.nchannels = read_u8(data, 5); | |
2009 | if (vs->as.nchannels != 1 && vs->as.nchannels != 2) { | |
2010 | printf("Invalid audio channel coount %d\n", | |
2011 | read_u8(data, 5)); | |
2012 | vnc_client_error(vs); | |
2013 | break; | |
2014 | } | |
2015 | vs->as.freq = read_u32(data, 6); | |
2016 | break; | |
2017 | default: | |
2018 | printf ("Invalid audio message %d\n", read_u8(data, 4)); | |
2019 | vnc_client_error(vs); | |
2020 | break; | |
2021 | } | |
2022 | break; | |
2023 | ||
9ca313aa AL |
2024 | default: |
2025 | printf("Msg: %d\n", read_u16(data, 0)); | |
2026 | vnc_client_error(vs); | |
2027 | break; | |
2028 | } | |
2029 | break; | |
24236869 | 2030 | default: |
28a76be8 AL |
2031 | printf("Msg: %d\n", data[0]); |
2032 | vnc_client_error(vs); | |
2033 | break; | |
24236869 | 2034 | } |
5fafdf24 | 2035 | |
24236869 FB |
2036 | vnc_read_when(vs, protocol_client_msg, 1); |
2037 | return 0; | |
2038 | } | |
2039 | ||
60fe76f3 | 2040 | static int protocol_client_init(VncState *vs, uint8_t *data, size_t len) |
24236869 | 2041 | { |
c35734b2 TS |
2042 | char buf[1024]; |
2043 | int size; | |
24236869 | 2044 | |
5862d195 GH |
2045 | vs->client_width = ds_get_width(vs->ds); |
2046 | vs->client_height = ds_get_height(vs->ds); | |
2047 | vnc_write_u16(vs, vs->client_width); | |
2048 | vnc_write_u16(vs, vs->client_height); | |
24236869 | 2049 | |
ca4cca4d | 2050 | pixel_format_message(vs); |
24236869 | 2051 | |
c35734b2 TS |
2052 | if (qemu_name) |
2053 | size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name); | |
2054 | else | |
2055 | size = snprintf(buf, sizeof(buf), "QEMU"); | |
2056 | ||
2057 | vnc_write_u32(vs, size); | |
2058 | vnc_write(vs, buf, size); | |
24236869 FB |
2059 | vnc_flush(vs); |
2060 | ||
4a80dba3 | 2061 | vnc_client_cache_auth(vs); |
0d2ed46a | 2062 | vnc_qmp_event(vs, QEVENT_VNC_INITIALIZED); |
4a80dba3 | 2063 | |
24236869 FB |
2064 | vnc_read_when(vs, protocol_client_msg, 1); |
2065 | ||
2066 | return 0; | |
2067 | } | |
2068 | ||
5fb6c7a8 AL |
2069 | void start_client_init(VncState *vs) |
2070 | { | |
2071 | vnc_read_when(vs, protocol_client_init, 1); | |
2072 | } | |
2073 | ||
70848515 TS |
2074 | static void make_challenge(VncState *vs) |
2075 | { | |
2076 | int i; | |
2077 | ||
2078 | srand(time(NULL)+getpid()+getpid()*987654+rand()); | |
2079 | ||
2080 | for (i = 0 ; i < sizeof(vs->challenge) ; i++) | |
2081 | vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0)); | |
2082 | } | |
2083 | ||
60fe76f3 | 2084 | static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len) |
70848515 | 2085 | { |
60fe76f3 | 2086 | unsigned char response[VNC_AUTH_CHALLENGE_SIZE]; |
70848515 | 2087 | int i, j, pwlen; |
60fe76f3 | 2088 | unsigned char key[8]; |
3c9405a0 | 2089 | time_t now = time(NULL); |
70848515 | 2090 | |
1cd20f8b | 2091 | if (!vs->vd->password) { |
28a76be8 | 2092 | VNC_DEBUG("No password configured on server"); |
6bffdf0f | 2093 | goto reject; |
70848515 | 2094 | } |
3c9405a0 GH |
2095 | if (vs->vd->expires < now) { |
2096 | VNC_DEBUG("Password is expired"); | |
2097 | goto reject; | |
2098 | } | |
70848515 TS |
2099 | |
2100 | memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE); | |
2101 | ||
2102 | /* Calculate the expected challenge response */ | |
753b4053 | 2103 | pwlen = strlen(vs->vd->password); |
70848515 | 2104 | for (i=0; i<sizeof(key); i++) |
753b4053 | 2105 | key[i] = i<pwlen ? vs->vd->password[i] : 0; |
70848515 TS |
2106 | deskey(key, EN0); |
2107 | for (j = 0; j < VNC_AUTH_CHALLENGE_SIZE; j += 8) | |
2108 | des(response+j, response+j); | |
2109 | ||
2110 | /* Compare expected vs actual challenge response */ | |
2111 | if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) { | |
28a76be8 | 2112 | VNC_DEBUG("Client challenge reponse did not match\n"); |
6bffdf0f | 2113 | goto reject; |
70848515 | 2114 | } else { |
28a76be8 AL |
2115 | VNC_DEBUG("Accepting VNC challenge response\n"); |
2116 | vnc_write_u32(vs, 0); /* Accept auth */ | |
2117 | vnc_flush(vs); | |
70848515 | 2118 | |
5fb6c7a8 | 2119 | start_client_init(vs); |
70848515 TS |
2120 | } |
2121 | return 0; | |
6bffdf0f GH |
2122 | |
2123 | reject: | |
2124 | vnc_write_u32(vs, 1); /* Reject auth */ | |
2125 | if (vs->minor >= 8) { | |
2126 | static const char err[] = "Authentication failed"; | |
2127 | vnc_write_u32(vs, sizeof(err)); | |
2128 | vnc_write(vs, err, sizeof(err)); | |
2129 | } | |
2130 | vnc_flush(vs); | |
2131 | vnc_client_error(vs); | |
2132 | return 0; | |
70848515 TS |
2133 | } |
2134 | ||
5fb6c7a8 | 2135 | void start_auth_vnc(VncState *vs) |
70848515 TS |
2136 | { |
2137 | make_challenge(vs); | |
2138 | /* Send client a 'random' challenge */ | |
2139 | vnc_write(vs, vs->challenge, sizeof(vs->challenge)); | |
2140 | vnc_flush(vs); | |
2141 | ||
2142 | vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge)); | |
469b15c6 TS |
2143 | } |
2144 | ||
2145 | ||
60fe76f3 | 2146 | static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len) |
70848515 TS |
2147 | { |
2148 | /* We only advertise 1 auth scheme at a time, so client | |
2149 | * must pick the one we sent. Verify this */ | |
753b4053 | 2150 | if (data[0] != vs->vd->auth) { /* Reject auth */ |
1263b7d6 | 2151 | VNC_DEBUG("Reject auth %d because it didn't match advertized\n", (int)data[0]); |
70848515 TS |
2152 | vnc_write_u32(vs, 1); |
2153 | if (vs->minor >= 8) { | |
2154 | static const char err[] = "Authentication failed"; | |
2155 | vnc_write_u32(vs, sizeof(err)); | |
2156 | vnc_write(vs, err, sizeof(err)); | |
2157 | } | |
2158 | vnc_client_error(vs); | |
2159 | } else { /* Accept requested auth */ | |
2160 | VNC_DEBUG("Client requested auth %d\n", (int)data[0]); | |
753b4053 | 2161 | switch (vs->vd->auth) { |
70848515 TS |
2162 | case VNC_AUTH_NONE: |
2163 | VNC_DEBUG("Accept auth none\n"); | |
a26c97ad AZ |
2164 | if (vs->minor >= 8) { |
2165 | vnc_write_u32(vs, 0); /* Accept auth completion */ | |
2166 | vnc_flush(vs); | |
2167 | } | |
5fb6c7a8 | 2168 | start_client_init(vs); |
70848515 TS |
2169 | break; |
2170 | ||
2171 | case VNC_AUTH_VNC: | |
2172 | VNC_DEBUG("Start VNC auth\n"); | |
5fb6c7a8 AL |
2173 | start_auth_vnc(vs); |
2174 | break; | |
70848515 | 2175 | |
eb38c52c | 2176 | #ifdef CONFIG_VNC_TLS |
8d5d2d4c TS |
2177 | case VNC_AUTH_VENCRYPT: |
2178 | VNC_DEBUG("Accept VeNCrypt auth\n");; | |
5fb6c7a8 AL |
2179 | start_auth_vencrypt(vs); |
2180 | break; | |
8d5d2d4c TS |
2181 | #endif /* CONFIG_VNC_TLS */ |
2182 | ||
2f9606b3 AL |
2183 | #ifdef CONFIG_VNC_SASL |
2184 | case VNC_AUTH_SASL: | |
2185 | VNC_DEBUG("Accept SASL auth\n"); | |
2186 | start_auth_sasl(vs); | |
2187 | break; | |
2188 | #endif /* CONFIG_VNC_SASL */ | |
2189 | ||
70848515 | 2190 | default: /* Should not be possible, but just in case */ |
1263b7d6 | 2191 | VNC_DEBUG("Reject auth %d server code bug\n", vs->vd->auth); |
70848515 TS |
2192 | vnc_write_u8(vs, 1); |
2193 | if (vs->minor >= 8) { | |
2194 | static const char err[] = "Authentication failed"; | |
2195 | vnc_write_u32(vs, sizeof(err)); | |
2196 | vnc_write(vs, err, sizeof(err)); | |
2197 | } | |
2198 | vnc_client_error(vs); | |
2199 | } | |
2200 | } | |
2201 | return 0; | |
2202 | } | |
2203 | ||
60fe76f3 | 2204 | static int protocol_version(VncState *vs, uint8_t *version, size_t len) |
24236869 FB |
2205 | { |
2206 | char local[13]; | |
24236869 FB |
2207 | |
2208 | memcpy(local, version, 12); | |
2209 | local[12] = 0; | |
2210 | ||
70848515 | 2211 | if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) { |
28a76be8 AL |
2212 | VNC_DEBUG("Malformed protocol version %s\n", local); |
2213 | vnc_client_error(vs); | |
2214 | return 0; | |
24236869 | 2215 | } |
70848515 TS |
2216 | VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor); |
2217 | if (vs->major != 3 || | |
28a76be8 AL |
2218 | (vs->minor != 3 && |
2219 | vs->minor != 4 && | |
2220 | vs->minor != 5 && | |
2221 | vs->minor != 7 && | |
2222 | vs->minor != 8)) { | |
2223 | VNC_DEBUG("Unsupported client version\n"); | |
2224 | vnc_write_u32(vs, VNC_AUTH_INVALID); | |
2225 | vnc_flush(vs); | |
2226 | vnc_client_error(vs); | |
2227 | return 0; | |
70848515 | 2228 | } |
b0566f4f | 2229 | /* Some broken clients report v3.4 or v3.5, which spec requires to be treated |
70848515 TS |
2230 | * as equivalent to v3.3 by servers |
2231 | */ | |
b0566f4f | 2232 | if (vs->minor == 4 || vs->minor == 5) |
28a76be8 | 2233 | vs->minor = 3; |
70848515 TS |
2234 | |
2235 | if (vs->minor == 3) { | |
28a76be8 | 2236 | if (vs->vd->auth == VNC_AUTH_NONE) { |
70848515 | 2237 | VNC_DEBUG("Tell client auth none\n"); |
753b4053 | 2238 | vnc_write_u32(vs, vs->vd->auth); |
70848515 | 2239 | vnc_flush(vs); |
28a76be8 | 2240 | start_client_init(vs); |
753b4053 | 2241 | } else if (vs->vd->auth == VNC_AUTH_VNC) { |
70848515 | 2242 | VNC_DEBUG("Tell client VNC auth\n"); |
753b4053 | 2243 | vnc_write_u32(vs, vs->vd->auth); |
70848515 TS |
2244 | vnc_flush(vs); |
2245 | start_auth_vnc(vs); | |
2246 | } else { | |
753b4053 | 2247 | VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->vd->auth); |
70848515 TS |
2248 | vnc_write_u32(vs, VNC_AUTH_INVALID); |
2249 | vnc_flush(vs); | |
2250 | vnc_client_error(vs); | |
2251 | } | |
2252 | } else { | |
28a76be8 AL |
2253 | VNC_DEBUG("Telling client we support auth %d\n", vs->vd->auth); |
2254 | vnc_write_u8(vs, 1); /* num auth */ | |
2255 | vnc_write_u8(vs, vs->vd->auth); | |
2256 | vnc_read_when(vs, protocol_client_auth, 1); | |
2257 | vnc_flush(vs); | |
70848515 | 2258 | } |
24236869 FB |
2259 | |
2260 | return 0; | |
2261 | } | |
2262 | ||
999342a0 CC |
2263 | static VncRectStat *vnc_stat_rect(VncDisplay *vd, int x, int y) |
2264 | { | |
2265 | struct VncSurface *vs = &vd->guest; | |
2266 | ||
2267 | return &vs->stats[y / VNC_STAT_RECT][x / VNC_STAT_RECT]; | |
2268 | } | |
2269 | ||
2270 | static void vnc_update_stats(VncDisplay *vd, struct timeval * tv) | |
2271 | { | |
2272 | int x, y; | |
2273 | struct timeval res; | |
2274 | ||
2275 | for (y = 0; y < vd->guest.ds->height; y += VNC_STAT_RECT) { | |
2276 | for (x = 0; x < vd->guest.ds->width; x += VNC_STAT_RECT) { | |
2277 | VncRectStat *rect = vnc_stat_rect(vd, x, y); | |
2278 | ||
2279 | rect->updated = false; | |
2280 | } | |
2281 | } | |
2282 | ||
2283 | timersub(tv, &VNC_REFRESH_STATS, &res); | |
2284 | ||
2285 | if (timercmp(&vd->guest.last_freq_check, &res, >)) { | |
2286 | return ; | |
2287 | } | |
2288 | vd->guest.last_freq_check = *tv; | |
2289 | ||
2290 | for (y = 0; y < vd->guest.ds->height; y += VNC_STAT_RECT) { | |
2291 | for (x = 0; x < vd->guest.ds->width; x += VNC_STAT_RECT) { | |
2292 | VncRectStat *rect= vnc_stat_rect(vd, x, y); | |
2293 | int count = ARRAY_SIZE(rect->times); | |
2294 | struct timeval min, max; | |
2295 | ||
2296 | if (!timerisset(&rect->times[count - 1])) { | |
2297 | continue ; | |
2298 | } | |
2299 | ||
2300 | max = rect->times[(rect->idx + count - 1) % count]; | |
2301 | timersub(tv, &max, &res); | |
2302 | ||
2303 | if (timercmp(&res, &VNC_REFRESH_LOSSY, >)) { | |
2304 | rect->freq = 0; | |
2305 | memset(rect->times, 0, sizeof (rect->times)); | |
2306 | continue ; | |
2307 | } | |
2308 | ||
2309 | min = rect->times[rect->idx]; | |
2310 | max = rect->times[(rect->idx + count - 1) % count]; | |
2311 | timersub(&max, &min, &res); | |
2312 | ||
2313 | rect->freq = res.tv_sec + res.tv_usec / 1000000.; | |
2314 | rect->freq /= count; | |
2315 | rect->freq = 1. / rect->freq; | |
2316 | } | |
2317 | } | |
2318 | } | |
2319 | ||
2320 | double vnc_update_freq(VncState *vs, int x, int y, int w, int h) | |
2321 | { | |
2322 | int i, j; | |
2323 | double total = 0; | |
2324 | int num = 0; | |
2325 | ||
2326 | x = (x / VNC_STAT_RECT) * VNC_STAT_RECT; | |
2327 | y = (y / VNC_STAT_RECT) * VNC_STAT_RECT; | |
2328 | ||
2329 | for (j = y; j <= y + h; j += VNC_STAT_RECT) { | |
2330 | for (i = x; i <= x + w; i += VNC_STAT_RECT) { | |
2331 | total += vnc_stat_rect(vs->vd, i, j)->freq; | |
2332 | num++; | |
2333 | } | |
2334 | } | |
2335 | ||
2336 | if (num) { | |
2337 | return total / num; | |
2338 | } else { | |
2339 | return 0; | |
2340 | } | |
2341 | } | |
2342 | ||
2343 | static void vnc_rect_updated(VncDisplay *vd, int x, int y, struct timeval * tv) | |
2344 | { | |
2345 | VncRectStat *rect; | |
2346 | ||
2347 | rect = vnc_stat_rect(vd, x, y); | |
2348 | if (rect->updated) { | |
2349 | return ; | |
2350 | } | |
2351 | rect->times[rect->idx] = *tv; | |
2352 | rect->idx = (rect->idx + 1) % ARRAY_SIZE(rect->times); | |
2353 | rect->updated = true; | |
2354 | } | |
2355 | ||
1fc62412 SS |
2356 | static int vnc_refresh_server_surface(VncDisplay *vd) |
2357 | { | |
2358 | int y; | |
2359 | uint8_t *guest_row; | |
2360 | uint8_t *server_row; | |
2361 | int cmp_bytes; | |
2362 | uint32_t width_mask[VNC_DIRTY_WORDS]; | |
41b4bef6 | 2363 | VncState *vs; |
1fc62412 SS |
2364 | int has_dirty = 0; |
2365 | ||
999342a0 CC |
2366 | struct timeval tv; |
2367 | ||
2368 | gettimeofday(&tv, NULL); | |
2369 | vnc_update_stats(vd, &tv); | |
2370 | ||
1fc62412 SS |
2371 | /* |
2372 | * Walk through the guest dirty map. | |
2373 | * Check and copy modified bits from guest to server surface. | |
2374 | * Update server dirty map. | |
2375 | */ | |
2376 | vnc_set_bits(width_mask, (ds_get_width(vd->ds) / 16), VNC_DIRTY_WORDS); | |
2377 | cmp_bytes = 16 * ds_get_bytes_per_pixel(vd->ds); | |
2378 | guest_row = vd->guest.ds->data; | |
2379 | server_row = vd->server->data; | |
2380 | for (y = 0; y < vd->guest.ds->height; y++) { | |
2381 | if (vnc_and_bits(vd->guest.dirty[y], width_mask, VNC_DIRTY_WORDS)) { | |
2382 | int x; | |
2383 | uint8_t *guest_ptr; | |
2384 | uint8_t *server_ptr; | |
2385 | ||
2386 | guest_ptr = guest_row; | |
2387 | server_ptr = server_row; | |
2388 | ||
2389 | for (x = 0; x < vd->guest.ds->width; | |
2390 | x += 16, guest_ptr += cmp_bytes, server_ptr += cmp_bytes) { | |
2391 | if (!vnc_get_bit(vd->guest.dirty[y], (x / 16))) | |
2392 | continue; | |
2393 | vnc_clear_bit(vd->guest.dirty[y], (x / 16)); | |
2394 | if (memcmp(server_ptr, guest_ptr, cmp_bytes) == 0) | |
2395 | continue; | |
2396 | memcpy(server_ptr, guest_ptr, cmp_bytes); | |
999342a0 | 2397 | vnc_rect_updated(vd, x, y, &tv); |
41b4bef6 | 2398 | QTAILQ_FOREACH(vs, &vd->clients, next) { |
1fc62412 | 2399 | vnc_set_bit(vs->dirty[y], (x / 16)); |
1fc62412 SS |
2400 | } |
2401 | has_dirty++; | |
2402 | } | |
2403 | } | |
2404 | guest_row += ds_get_linesize(vd->ds); | |
2405 | server_row += ds_get_linesize(vd->ds); | |
2406 | } | |
2407 | return has_dirty; | |
2408 | } | |
2409 | ||
703bc68f SS |
2410 | static void vnc_refresh(void *opaque) |
2411 | { | |
2412 | VncDisplay *vd = opaque; | |
41b4bef6 AS |
2413 | VncState *vs, *vn; |
2414 | int has_dirty, rects = 0; | |
703bc68f SS |
2415 | |
2416 | vga_hw_update(); | |
2417 | ||
bd023f95 CC |
2418 | if (vnc_trylock_display(vd)) { |
2419 | vd->timer_interval = VNC_REFRESH_INTERVAL_BASE; | |
2420 | qemu_mod_timer(vd->timer, qemu_get_clock(rt_clock) + | |
2421 | vd->timer_interval); | |
2422 | return; | |
2423 | } | |
2424 | ||
1fc62412 | 2425 | has_dirty = vnc_refresh_server_surface(vd); |
bd023f95 | 2426 | vnc_unlock_display(vd); |
1fc62412 | 2427 | |
41b4bef6 | 2428 | QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) { |
2430ffe4 | 2429 | rects += vnc_update_client(vs, has_dirty); |
6185c578 | 2430 | /* vs might be free()ed here */ |
703bc68f | 2431 | } |
bd023f95 | 2432 | |
83755c17 SS |
2433 | /* vd->timer could be NULL now if the last client disconnected, |
2434 | * in this case don't update the timer */ | |
2435 | if (vd->timer == NULL) | |
2436 | return; | |
703bc68f | 2437 | |
2430ffe4 SS |
2438 | if (has_dirty && rects) { |
2439 | vd->timer_interval /= 2; | |
2440 | if (vd->timer_interval < VNC_REFRESH_INTERVAL_BASE) | |
2441 | vd->timer_interval = VNC_REFRESH_INTERVAL_BASE; | |
2442 | } else { | |
2443 | vd->timer_interval += VNC_REFRESH_INTERVAL_INC; | |
2444 | if (vd->timer_interval > VNC_REFRESH_INTERVAL_MAX) | |
2445 | vd->timer_interval = VNC_REFRESH_INTERVAL_MAX; | |
2446 | } | |
2447 | qemu_mod_timer(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval); | |
703bc68f SS |
2448 | } |
2449 | ||
2450 | static void vnc_init_timer(VncDisplay *vd) | |
2451 | { | |
2430ffe4 | 2452 | vd->timer_interval = VNC_REFRESH_INTERVAL_BASE; |
41b4bef6 | 2453 | if (vd->timer == NULL && !QTAILQ_EMPTY(&vd->clients)) { |
703bc68f | 2454 | vd->timer = qemu_new_timer(rt_clock, vnc_refresh, vd); |
1fc62412 | 2455 | vnc_refresh(vd); |
703bc68f SS |
2456 | } |
2457 | } | |
2458 | ||
2459 | static void vnc_remove_timer(VncDisplay *vd) | |
2460 | { | |
41b4bef6 | 2461 | if (vd->timer != NULL && QTAILQ_EMPTY(&vd->clients)) { |
703bc68f SS |
2462 | qemu_del_timer(vd->timer); |
2463 | qemu_free_timer(vd->timer); | |
2464 | vd->timer = NULL; | |
2465 | } | |
2466 | } | |
2467 | ||
753b4053 | 2468 | static void vnc_connect(VncDisplay *vd, int csock) |
3aa3eea3 | 2469 | { |
753b4053 AL |
2470 | VncState *vs = qemu_mallocz(sizeof(VncState)); |
2471 | vs->csock = csock; | |
2472 | ||
2473 | VNC_DEBUG("New client on socket %d\n", csock); | |
7d957bd8 | 2474 | dcl->idle = 0; |
3aa3eea3 AZ |
2475 | socket_set_nonblock(vs->csock); |
2476 | qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs); | |
753b4053 | 2477 | |
4a80dba3 | 2478 | vnc_client_cache_addr(vs); |
586153d9 | 2479 | vnc_qmp_event(vs, QEVENT_VNC_CONNECTED); |
4a80dba3 | 2480 | |
753b4053 AL |
2481 | vs->vd = vd; |
2482 | vs->ds = vd->ds; | |
753b4053 AL |
2483 | vs->last_x = -1; |
2484 | vs->last_y = -1; | |
2485 | ||
2486 | vs->as.freq = 44100; | |
2487 | vs->as.nchannels = 2; | |
2488 | vs->as.fmt = AUD_FMT_S16; | |
2489 | vs->as.endianness = 0; | |
2490 | ||
bd023f95 CC |
2491 | #ifdef CONFIG_VNC_THREAD |
2492 | qemu_mutex_init(&vs->output_mutex); | |
2493 | #endif | |
2494 | ||
41b4bef6 | 2495 | QTAILQ_INSERT_HEAD(&vd->clients, vs, next); |
1fc62412 SS |
2496 | |
2497 | vga_hw_update(); | |
2498 | ||
3aa3eea3 AZ |
2499 | vnc_write(vs, "RFB 003.008\n", 12); |
2500 | vnc_flush(vs); | |
2501 | vnc_read_when(vs, protocol_version, 12); | |
53762ddb | 2502 | reset_keys(vs); |
3a0558b5 GH |
2503 | if (vs->vd->lock_key_sync) |
2504 | vs->led = qemu_add_led_event_handler(kbd_leds, vs); | |
753b4053 | 2505 | |
37c34d9d AL |
2506 | vs->mouse_mode_notifier.notify = check_pointer_type_change; |
2507 | qemu_add_mouse_mode_change_notifier(&vs->mouse_mode_notifier); | |
2508 | ||
703bc68f | 2509 | vnc_init_timer(vd); |
1fc62412 | 2510 | |
198a0039 | 2511 | /* vs might be free()ed here */ |
3aa3eea3 AZ |
2512 | } |
2513 | ||
24236869 FB |
2514 | static void vnc_listen_read(void *opaque) |
2515 | { | |
753b4053 | 2516 | VncDisplay *vs = opaque; |
24236869 FB |
2517 | struct sockaddr_in addr; |
2518 | socklen_t addrlen = sizeof(addr); | |
2519 | ||
9f60ad50 AZ |
2520 | /* Catch-up */ |
2521 | vga_hw_update(); | |
2522 | ||
40ff6d7e | 2523 | int csock = qemu_accept(vs->lsock, (struct sockaddr *)&addr, &addrlen); |
753b4053 AL |
2524 | if (csock != -1) { |
2525 | vnc_connect(vs, csock); | |
24236869 FB |
2526 | } |
2527 | } | |
2528 | ||
71cab5ca | 2529 | void vnc_display_init(DisplayState *ds) |
24236869 | 2530 | { |
afd32160 | 2531 | VncDisplay *vs = qemu_mallocz(sizeof(*vs)); |
24236869 | 2532 | |
7d957bd8 | 2533 | dcl = qemu_mallocz(sizeof(DisplayChangeListener)); |
24236869 FB |
2534 | |
2535 | ds->opaque = vs; | |
7d957bd8 | 2536 | dcl->idle = 1; |
753b4053 | 2537 | vnc_display = vs; |
24236869 FB |
2538 | |
2539 | vs->lsock = -1; | |
24236869 FB |
2540 | |
2541 | vs->ds = ds; | |
41b4bef6 | 2542 | QTAILQ_INIT(&vs->clients); |
3c9405a0 | 2543 | vs->expires = TIME_MAX; |
24236869 | 2544 | |
9ca313aa | 2545 | if (keyboard_layout) |
0483755a | 2546 | vs->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout); |
9ca313aa | 2547 | else |
0483755a | 2548 | vs->kbd_layout = init_keyboard_layout(name2keysym, "en-us"); |
24236869 | 2549 | |
24236869 | 2550 | if (!vs->kbd_layout) |
28a76be8 | 2551 | exit(1); |
24236869 | 2552 | |
bd023f95 CC |
2553 | #ifdef CONFIG_VNC_THREAD |
2554 | qemu_mutex_init(&vs->mutex); | |
2555 | vnc_start_worker_thread(); | |
2556 | #endif | |
2557 | ||
753b4053 | 2558 | dcl->dpy_copy = vnc_dpy_copy; |
7d957bd8 AL |
2559 | dcl->dpy_update = vnc_dpy_update; |
2560 | dcl->dpy_resize = vnc_dpy_resize; | |
2561 | dcl->dpy_setdata = vnc_dpy_setdata; | |
7d957bd8 | 2562 | register_displaychangelistener(ds, dcl); |
d467b679 GH |
2563 | ds->mouse_set = vnc_mouse_set; |
2564 | ds->cursor_define = vnc_dpy_cursor_define; | |
71cab5ca TS |
2565 | } |
2566 | ||
6f43024c | 2567 | |
71cab5ca TS |
2568 | void vnc_display_close(DisplayState *ds) |
2569 | { | |
753b4053 | 2570 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; |
71cab5ca | 2571 | |
452b4d88 AL |
2572 | if (!vs) |
2573 | return; | |
71cab5ca | 2574 | if (vs->display) { |
28a76be8 AL |
2575 | qemu_free(vs->display); |
2576 | vs->display = NULL; | |
71cab5ca TS |
2577 | } |
2578 | if (vs->lsock != -1) { | |
28a76be8 AL |
2579 | qemu_set_fd_handler2(vs->lsock, NULL, NULL, NULL, NULL); |
2580 | close(vs->lsock); | |
2581 | vs->lsock = -1; | |
71cab5ca | 2582 | } |
70848515 | 2583 | vs->auth = VNC_AUTH_INVALID; |
eb38c52c | 2584 | #ifdef CONFIG_VNC_TLS |
8d5d2d4c | 2585 | vs->subauth = VNC_AUTH_INVALID; |
5fb6c7a8 | 2586 | vs->tls.x509verify = 0; |
8d5d2d4c | 2587 | #endif |
70848515 TS |
2588 | } |
2589 | ||
1cd20f8b AL |
2590 | int vnc_display_disable_login(DisplayState *ds) |
2591 | { | |
2592 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; | |
2593 | ||
2594 | if (!vs) { | |
2595 | return -1; | |
2596 | } | |
2597 | ||
2598 | if (vs->password) { | |
2599 | qemu_free(vs->password); | |
2600 | } | |
2601 | ||
2602 | vs->password = NULL; | |
2603 | vs->auth = VNC_AUTH_VNC; | |
2604 | ||
2605 | return 0; | |
2606 | } | |
2607 | ||
70848515 TS |
2608 | int vnc_display_password(DisplayState *ds, const char *password) |
2609 | { | |
753b4053 | 2610 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; |
70848515 | 2611 | |
7ef92331 ZA |
2612 | if (!vs) { |
2613 | return -1; | |
2614 | } | |
2615 | ||
1cd20f8b AL |
2616 | if (!password) { |
2617 | /* This is not the intention of this interface but err on the side | |
2618 | of being safe */ | |
2619 | return vnc_display_disable_login(ds); | |
2620 | } | |
2621 | ||
70848515 | 2622 | if (vs->password) { |
28a76be8 AL |
2623 | qemu_free(vs->password); |
2624 | vs->password = NULL; | |
70848515 | 2625 | } |
1cd20f8b AL |
2626 | vs->password = qemu_strdup(password); |
2627 | vs->auth = VNC_AUTH_VNC; | |
70848515 TS |
2628 | |
2629 | return 0; | |
71cab5ca TS |
2630 | } |
2631 | ||
3c9405a0 GH |
2632 | int vnc_display_pw_expire(DisplayState *ds, time_t expires) |
2633 | { | |
2634 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; | |
2635 | ||
2636 | vs->expires = expires; | |
2637 | return 0; | |
2638 | } | |
2639 | ||
f92f8afe AL |
2640 | char *vnc_display_local_addr(DisplayState *ds) |
2641 | { | |
2642 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; | |
2643 | ||
2644 | return vnc_socket_local_addr("%s:%s", vs->lsock); | |
2645 | } | |
2646 | ||
70848515 | 2647 | int vnc_display_open(DisplayState *ds, const char *display) |
71cab5ca | 2648 | { |
753b4053 | 2649 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; |
70848515 TS |
2650 | const char *options; |
2651 | int password = 0; | |
3aa3eea3 | 2652 | int reverse = 0; |
eb38c52c | 2653 | #ifdef CONFIG_VNC_TLS |
3a702699 | 2654 | int tls = 0, x509 = 0; |
8d5d2d4c | 2655 | #endif |
2f9606b3 AL |
2656 | #ifdef CONFIG_VNC_SASL |
2657 | int sasl = 0; | |
2658 | int saslErr; | |
2659 | #endif | |
2ded6ad7 | 2660 | #if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL) |
76655d6d | 2661 | int acl = 0; |
2ded6ad7 | 2662 | #endif |
3a0558b5 | 2663 | int lock_key_sync = 1; |
71cab5ca | 2664 | |
753b4053 | 2665 | if (!vnc_display) |
452b4d88 | 2666 | return -1; |
71cab5ca | 2667 | vnc_display_close(ds); |
70848515 | 2668 | if (strcmp(display, "none") == 0) |
28a76be8 | 2669 | return 0; |
24236869 | 2670 | |
70848515 | 2671 | if (!(vs->display = strdup(display))) |
28a76be8 | 2672 | return -1; |
70848515 TS |
2673 | |
2674 | options = display; | |
2675 | while ((options = strchr(options, ','))) { | |
28a76be8 AL |
2676 | options++; |
2677 | if (strncmp(options, "password", 8) == 0) { | |
2678 | password = 1; /* Require password auth */ | |
2679 | } else if (strncmp(options, "reverse", 7) == 0) { | |
2680 | reverse = 1; | |
3a0558b5 GH |
2681 | } else if (strncmp(options, "no-lock-key-sync", 9) == 0) { |
2682 | lock_key_sync = 0; | |
2f9606b3 | 2683 | #ifdef CONFIG_VNC_SASL |
28a76be8 AL |
2684 | } else if (strncmp(options, "sasl", 4) == 0) { |
2685 | sasl = 1; /* Require SASL auth */ | |
2f9606b3 | 2686 | #endif |
eb38c52c | 2687 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2688 | } else if (strncmp(options, "tls", 3) == 0) { |
2689 | tls = 1; /* Require TLS */ | |
2690 | } else if (strncmp(options, "x509", 4) == 0) { | |
2691 | char *start, *end; | |
2692 | x509 = 1; /* Require x509 certificates */ | |
2693 | if (strncmp(options, "x509verify", 10) == 0) | |
2694 | vs->tls.x509verify = 1; /* ...and verify client certs */ | |
2695 | ||
2696 | /* Now check for 'x509=/some/path' postfix | |
2697 | * and use that to setup x509 certificate/key paths */ | |
2698 | start = strchr(options, '='); | |
2699 | end = strchr(options, ','); | |
2700 | if (start && (!end || (start < end))) { | |
2701 | int len = end ? end-(start+1) : strlen(start+1); | |
2702 | char *path = qemu_strndup(start + 1, len); | |
2703 | ||
2704 | VNC_DEBUG("Trying certificate path '%s'\n", path); | |
2705 | if (vnc_tls_set_x509_creds_dir(vs, path) < 0) { | |
2706 | fprintf(stderr, "Failed to find x509 certificates/keys in %s\n", path); | |
2707 | qemu_free(path); | |
2708 | qemu_free(vs->display); | |
2709 | vs->display = NULL; | |
2710 | return -1; | |
2711 | } | |
2712 | qemu_free(path); | |
2713 | } else { | |
2714 | fprintf(stderr, "No certificate path provided\n"); | |
2715 | qemu_free(vs->display); | |
2716 | vs->display = NULL; | |
2717 | return -1; | |
2718 | } | |
8d5d2d4c | 2719 | #endif |
2ded6ad7 | 2720 | #if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL) |
28a76be8 AL |
2721 | } else if (strncmp(options, "acl", 3) == 0) { |
2722 | acl = 1; | |
2ded6ad7 | 2723 | #endif |
6f9c78c1 CC |
2724 | } else if (strncmp(options, "lossy", 5) == 0) { |
2725 | vs->lossy = true; | |
28a76be8 | 2726 | } |
70848515 TS |
2727 | } |
2728 | ||
76655d6d AL |
2729 | #ifdef CONFIG_VNC_TLS |
2730 | if (acl && x509 && vs->tls.x509verify) { | |
28a76be8 AL |
2731 | if (!(vs->tls.acl = qemu_acl_init("vnc.x509dname"))) { |
2732 | fprintf(stderr, "Failed to create x509 dname ACL\n"); | |
2733 | exit(1); | |
2734 | } | |
76655d6d AL |
2735 | } |
2736 | #endif | |
2737 | #ifdef CONFIG_VNC_SASL | |
2738 | if (acl && sasl) { | |
28a76be8 AL |
2739 | if (!(vs->sasl.acl = qemu_acl_init("vnc.username"))) { |
2740 | fprintf(stderr, "Failed to create username ACL\n"); | |
2741 | exit(1); | |
2742 | } | |
76655d6d AL |
2743 | } |
2744 | #endif | |
2745 | ||
2f9606b3 AL |
2746 | /* |
2747 | * Combinations we support here: | |
2748 | * | |
2749 | * - no-auth (clear text, no auth) | |
2750 | * - password (clear text, weak auth) | |
2751 | * - sasl (encrypt, good auth *IF* using Kerberos via GSSAPI) | |
2752 | * - tls (encrypt, weak anonymous creds, no auth) | |
2753 | * - tls + password (encrypt, weak anonymous creds, weak auth) | |
2754 | * - tls + sasl (encrypt, weak anonymous creds, good auth) | |
2755 | * - tls + x509 (encrypt, good x509 creds, no auth) | |
2756 | * - tls + x509 + password (encrypt, good x509 creds, weak auth) | |
2757 | * - tls + x509 + sasl (encrypt, good x509 creds, good auth) | |
2758 | * | |
2759 | * NB1. TLS is a stackable auth scheme. | |
2760 | * NB2. the x509 schemes have option to validate a client cert dname | |
2761 | */ | |
70848515 | 2762 | if (password) { |
eb38c52c | 2763 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2764 | if (tls) { |
2765 | vs->auth = VNC_AUTH_VENCRYPT; | |
2766 | if (x509) { | |
2767 | VNC_DEBUG("Initializing VNC server with x509 password auth\n"); | |
2768 | vs->subauth = VNC_AUTH_VENCRYPT_X509VNC; | |
2769 | } else { | |
2770 | VNC_DEBUG("Initializing VNC server with TLS password auth\n"); | |
2771 | vs->subauth = VNC_AUTH_VENCRYPT_TLSVNC; | |
2772 | } | |
2773 | } else { | |
2f9606b3 | 2774 | #endif /* CONFIG_VNC_TLS */ |
28a76be8 AL |
2775 | VNC_DEBUG("Initializing VNC server with password auth\n"); |
2776 | vs->auth = VNC_AUTH_VNC; | |
eb38c52c | 2777 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2778 | vs->subauth = VNC_AUTH_INVALID; |
2779 | } | |
2f9606b3 AL |
2780 | #endif /* CONFIG_VNC_TLS */ |
2781 | #ifdef CONFIG_VNC_SASL | |
2782 | } else if (sasl) { | |
2783 | #ifdef CONFIG_VNC_TLS | |
2784 | if (tls) { | |
2785 | vs->auth = VNC_AUTH_VENCRYPT; | |
2786 | if (x509) { | |
28a76be8 | 2787 | VNC_DEBUG("Initializing VNC server with x509 SASL auth\n"); |
2f9606b3 AL |
2788 | vs->subauth = VNC_AUTH_VENCRYPT_X509SASL; |
2789 | } else { | |
28a76be8 | 2790 | VNC_DEBUG("Initializing VNC server with TLS SASL auth\n"); |
2f9606b3 AL |
2791 | vs->subauth = VNC_AUTH_VENCRYPT_TLSSASL; |
2792 | } | |
2793 | } else { | |
2794 | #endif /* CONFIG_VNC_TLS */ | |
28a76be8 | 2795 | VNC_DEBUG("Initializing VNC server with SASL auth\n"); |
2f9606b3 AL |
2796 | vs->auth = VNC_AUTH_SASL; |
2797 | #ifdef CONFIG_VNC_TLS | |
2798 | vs->subauth = VNC_AUTH_INVALID; | |
2799 | } | |
2800 | #endif /* CONFIG_VNC_TLS */ | |
2801 | #endif /* CONFIG_VNC_SASL */ | |
70848515 | 2802 | } else { |
eb38c52c | 2803 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2804 | if (tls) { |
2805 | vs->auth = VNC_AUTH_VENCRYPT; | |
2806 | if (x509) { | |
2807 | VNC_DEBUG("Initializing VNC server with x509 no auth\n"); | |
2808 | vs->subauth = VNC_AUTH_VENCRYPT_X509NONE; | |
2809 | } else { | |
2810 | VNC_DEBUG("Initializing VNC server with TLS no auth\n"); | |
2811 | vs->subauth = VNC_AUTH_VENCRYPT_TLSNONE; | |
2812 | } | |
2813 | } else { | |
8d5d2d4c | 2814 | #endif |
28a76be8 AL |
2815 | VNC_DEBUG("Initializing VNC server with no auth\n"); |
2816 | vs->auth = VNC_AUTH_NONE; | |
eb38c52c | 2817 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2818 | vs->subauth = VNC_AUTH_INVALID; |
2819 | } | |
8d5d2d4c | 2820 | #endif |
70848515 | 2821 | } |
24236869 | 2822 | |
2f9606b3 AL |
2823 | #ifdef CONFIG_VNC_SASL |
2824 | if ((saslErr = sasl_server_init(NULL, "qemu")) != SASL_OK) { | |
2825 | fprintf(stderr, "Failed to initialize SASL auth %s", | |
2826 | sasl_errstring(saslErr, NULL, NULL)); | |
2827 | free(vs->display); | |
2828 | vs->display = NULL; | |
2829 | return -1; | |
2830 | } | |
2831 | #endif | |
3a0558b5 | 2832 | vs->lock_key_sync = lock_key_sync; |
2f9606b3 | 2833 | |
3aa3eea3 | 2834 | if (reverse) { |
9712ecaf AL |
2835 | /* connect to viewer */ |
2836 | if (strncmp(display, "unix:", 5) == 0) | |
2837 | vs->lsock = unix_connect(display+5); | |
2838 | else | |
2839 | vs->lsock = inet_connect(display, SOCK_STREAM); | |
2840 | if (-1 == vs->lsock) { | |
3aa3eea3 AZ |
2841 | free(vs->display); |
2842 | vs->display = NULL; | |
2843 | return -1; | |
2844 | } else { | |
753b4053 | 2845 | int csock = vs->lsock; |
3aa3eea3 | 2846 | vs->lsock = -1; |
753b4053 | 2847 | vnc_connect(vs, csock); |
3aa3eea3 | 2848 | } |
9712ecaf | 2849 | return 0; |
24236869 | 2850 | |
9712ecaf AL |
2851 | } else { |
2852 | /* listen for connects */ | |
2853 | char *dpy; | |
2854 | dpy = qemu_malloc(256); | |
2855 | if (strncmp(display, "unix:", 5) == 0) { | |
bc575e95 | 2856 | pstrcpy(dpy, 256, "unix:"); |
4a55bfdf | 2857 | vs->lsock = unix_listen(display+5, dpy+5, 256-5); |
9712ecaf AL |
2858 | } else { |
2859 | vs->lsock = inet_listen(display, dpy, 256, SOCK_STREAM, 5900); | |
2860 | } | |
2861 | if (-1 == vs->lsock) { | |
2862 | free(dpy); | |
d0513623 | 2863 | return -1; |
9712ecaf AL |
2864 | } else { |
2865 | free(vs->display); | |
2866 | vs->display = dpy; | |
2867 | } | |
24236869 | 2868 | } |
753b4053 | 2869 | return qemu_set_fd_handler2(vs->lsock, NULL, vnc_listen_read, NULL, vs); |
24236869 | 2870 | } |