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sdl: shorten the GUI refresh interval when mouse or keyboard is active
[qemu.git] / ui / vnc.c
CommitLineData
7d510b8c
FB		 1/*
2 * QEMU VNC display driver
5fafdf24 3 *
7d510b8c
FB		 4 * Copyright (C) 2006 Anthony Liguori <[email protected]>
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"
40066175 29#include "trace.h"
1d0d59fe 30#include "hw/qdev.h"
9c17d615 31#include "sysemu/sysemu.h"
d49b6836 32#include "qemu/error-report.h"
1de7afc9
PB		 33#include "qemu/sockets.h"
34#include "qemu/timer.h"
35#include "qemu/acl.h"
4db14629 36#include "qemu/config-file.h"
cc7a8ea7 37#include "qapi/qmp/qerror.h"
7b1b5d19 38#include "qapi/qmp/types.h"
2b54aa87 39#include "qmp-commands.h"
1de7afc9 40#include "qemu/osdep.h"
8d447d10 41#include "ui/input.h"
fb6ba0d5 42#include "qapi-event.h"
8e9b0d24 43#include "crypto/hash.h"
3e305e4a
DB		 44#include "crypto/tlscredsanon.h"
45#include "crypto/tlscredsx509.h"
46#include "qom/object_interfaces.h"
24236869 47
0f7b2864 48#define VNC_REFRESH_INTERVAL_BASE GUI_REFRESH_INTERVAL_DEFAULT
2430ffe4 49#define VNC_REFRESH_INTERVAL_INC 50
0f7b2864 50#define VNC_REFRESH_INTERVAL_MAX GUI_REFRESH_INTERVAL_IDLE
999342a0
CC		 51static const struct timeval VNC_REFRESH_STATS = { 0, 500000 };
52static const struct timeval VNC_REFRESH_LOSSY = { 2, 0 };
24236869
FB		 53
54#include "vnc_keysym.h"
800567a6 55#include "crypto/cipher.h"
70848515 56
d616ccc5
GH		 57static QTAILQ_HEAD(, VncDisplay) vnc_displays =
58 QTAILQ_HEAD_INITIALIZER(vnc_displays);
a9ce8590 59
d467b679 60static int vnc_cursor_define(VncState *vs);
7bc9318b 61static void vnc_release_modifiers(VncState *vs);
d467b679 62
8cf36489
GH		 63static void vnc_set_share_mode(VncState *vs, VncShareMode mode)
64{
65#ifdef _VNC_DEBUG
66 static const char *mn[] = {
67 [0] = "undefined",
68 [VNC_SHARE_MODE_CONNECTING] = "connecting",
69 [VNC_SHARE_MODE_SHARED] = "shared",
70 [VNC_SHARE_MODE_EXCLUSIVE] = "exclusive",
71 [VNC_SHARE_MODE_DISCONNECTED] = "disconnected",
72 };
04d2529d
DB		 73 fprintf(stderr, "%s/%p: %s -> %s\n", __func__,
74 vs->ioc, mn[vs->share_mode], mn[mode]);
8cf36489
GH		 75#endif
76
e5f34cdd
GH		 77 switch (vs->share_mode) {
78 case VNC_SHARE_MODE_CONNECTING:
79 vs->vd->num_connecting--;
80 break;
81 case VNC_SHARE_MODE_SHARED:
82 vs->vd->num_shared--;
83 break;
84 case VNC_SHARE_MODE_EXCLUSIVE:
8cf36489 85 vs->vd->num_exclusive--;
e5f34cdd
GH		 86 break;
87 default:
88 break;
8cf36489 89 }
e5f34cdd 90
8cf36489 91 vs->share_mode = mode;
e5f34cdd
GH		 92
93 switch (vs->share_mode) {
94 case VNC_SHARE_MODE_CONNECTING:
95 vs->vd->num_connecting++;
96 break;
97 case VNC_SHARE_MODE_SHARED:
98 vs->vd->num_shared++;
99 break;
100 case VNC_SHARE_MODE_EXCLUSIVE:
8cf36489 101 vs->vd->num_exclusive++;
e5f34cdd
GH		 102 break;
103 default:
104 break;
8cf36489
GH		 105 }
106}
107
1ff7df1a 108
04d2529d 109static void vnc_init_basic_info(SocketAddress *addr,
98481bfc
EB		 110 VncBasicInfo *info,
111 Error **errp)
d96fd29c 112{
04d2529d
DB		 113 switch (addr->type) {
114 case SOCKET_ADDRESS_KIND_INET:
115 info->host = g_strdup(addr->u.inet->host);
116 info->service = g_strdup(addr->u.inet->port);
117 if (addr->u.inet->ipv6) {
118 info->family = NETWORK_ADDRESS_FAMILY_IPV6;
119 } else {
120 info->family = NETWORK_ADDRESS_FAMILY_IPV4;
121 }
122 break;
d96fd29c 123
04d2529d
DB		 124 case SOCKET_ADDRESS_KIND_UNIX:
125 info->host = g_strdup("");
126 info->service = g_strdup(addr->u.q_unix->path);
127 info->family = NETWORK_ADDRESS_FAMILY_UNIX;
128 break;
129
130 default:
131 error_setg(errp, "Unsupported socket kind %d",
132 addr->type);
133 break;
d96fd29c
LC		 134 }
135
04d2529d 136 return;
d96fd29c
LC		 137}
138
04d2529d
DB		 139static void vnc_init_basic_info_from_server_addr(QIOChannelSocket *ioc,
140 VncBasicInfo *info,
98481bfc 141 Error **errp)
d96fd29c 142{
04d2529d 143 SocketAddress *addr = NULL;
d96fd29c 144
04d2529d
DB		 145 addr = qio_channel_socket_get_local_address(ioc, errp);
146 if (!addr) {
98481bfc 147 return;
d96fd29c
LC		 148 }
149
04d2529d
DB		 150 vnc_init_basic_info(addr, info, errp);
151 qapi_free_SocketAddress(addr);
d96fd29c
LC		 152}
153
04d2529d
DB		 154static void vnc_init_basic_info_from_remote_addr(QIOChannelSocket *ioc,
155 VncBasicInfo *info,
98481bfc 156 Error **errp)
d96fd29c 157{
04d2529d 158 SocketAddress *addr = NULL;
d96fd29c 159
04d2529d
DB		 160 addr = qio_channel_socket_get_remote_address(ioc, errp);
161 if (!addr) {
98481bfc 162 return;
d96fd29c
LC		 163 }
164
04d2529d
DB		 165 vnc_init_basic_info(addr, info, errp);
166 qapi_free_SocketAddress(addr);
d96fd29c
LC		 167}
168
1ff7df1a
AL		 169static const char *vnc_auth_name(VncDisplay *vd) {
170 switch (vd->auth) {
171 case VNC_AUTH_INVALID:
172 return "invalid";
173 case VNC_AUTH_NONE:
174 return "none";
175 case VNC_AUTH_VNC:
176 return "vnc";
177 case VNC_AUTH_RA2:
178 return "ra2";
179 case VNC_AUTH_RA2NE:
180 return "ra2ne";
181 case VNC_AUTH_TIGHT:
182 return "tight";
183 case VNC_AUTH_ULTRA:
184 return "ultra";
185 case VNC_AUTH_TLS:
186 return "tls";
187 case VNC_AUTH_VENCRYPT:
1ff7df1a
AL		 188 switch (vd->subauth) {
189 case VNC_AUTH_VENCRYPT_PLAIN:
190 return "vencrypt+plain";
191 case VNC_AUTH_VENCRYPT_TLSNONE:
192 return "vencrypt+tls+none";
193 case VNC_AUTH_VENCRYPT_TLSVNC:
194 return "vencrypt+tls+vnc";
195 case VNC_AUTH_VENCRYPT_TLSPLAIN:
196 return "vencrypt+tls+plain";
197 case VNC_AUTH_VENCRYPT_X509NONE:
198 return "vencrypt+x509+none";
199 case VNC_AUTH_VENCRYPT_X509VNC:
200 return "vencrypt+x509+vnc";
201 case VNC_AUTH_VENCRYPT_X509PLAIN:
202 return "vencrypt+x509+plain";
28a76be8
AL		 203 case VNC_AUTH_VENCRYPT_TLSSASL:
204 return "vencrypt+tls+sasl";
205 case VNC_AUTH_VENCRYPT_X509SASL:
206 return "vencrypt+x509+sasl";
1ff7df1a
AL		 207 default:
208 return "vencrypt";
209 }
2f9606b3 210 case VNC_AUTH_SASL:
28a76be8 211 return "sasl";
1ff7df1a
AL		 212 }
213 return "unknown";
214}
215
d616ccc5 216static VncServerInfo *vnc_server_info_get(VncDisplay *vd)
a7789382 217{
fb6ba0d5 218 VncServerInfo *info;
98481bfc 219 Error *err = NULL;
a7789382 220
fb6ba0d5 221 info = g_malloc(sizeof(*info));
ddf21908
EB		 222 vnc_init_basic_info_from_server_addr(vd->lsock,
223 qapi_VncServerInfo_base(info), &err);
fb6ba0d5 224 info->has_auth = true;
d616ccc5 225 info->auth = g_strdup(vnc_auth_name(vd));
98481bfc
EB		 226 if (err) {
227 qapi_free_VncServerInfo(info);
228 info = NULL;
229 error_free(err);
230 }
fb6ba0d5 231 return info;
a7789382
LC		 232}
233
4a80dba3 234static void vnc_client_cache_auth(VncState *client)
1ff7df1a 235{
4a80dba3
LC		 236 if (!client->info) {
237 return;
d96fd29c 238 }
1263b7d6 239
3e305e4a
DB		 240 if (client->tls) {
241 client->info->x509_dname =
242 qcrypto_tls_session_get_peer_name(client->tls);
243 client->info->has_x509_dname =
244 client->info->x509_dname != NULL;
d96fd29c 245 }
1263b7d6
AL		 246#ifdef CONFIG_VNC_SASL
247 if (client->sasl.conn &&
d96fd29c 248 client->sasl.username) {
fb6ba0d5
WX		 249 client->info->has_sasl_username = true;
250 client->info->sasl_username = g_strdup(client->sasl.username);
d96fd29c 251 }
1263b7d6 252#endif
4a80dba3 253}
d96fd29c 254
4a80dba3
LC		 255static void vnc_client_cache_addr(VncState *client)
256{
98481bfc
EB		 257 Error *err = NULL;
258
259 client->info = g_malloc0(sizeof(*client->info));
04d2529d 260 vnc_init_basic_info_from_remote_addr(client->sioc,
ddf21908 261 qapi_VncClientInfo_base(client->info),
98481bfc
EB		 262 &err);
263 if (err) {
264 qapi_free_VncClientInfo(client->info);
265 client->info = NULL;
266 error_free(err);
4a80dba3 267 }
1ff7df1a
AL		 268}
269
fb6ba0d5 270static void vnc_qmp_event(VncState *vs, QAPIEvent event)
586153d9 271{
fb6ba0d5 272 VncServerInfo *si;
586153d9
LC		 273
274 if (!vs->info) {
275 return;
276 }
277
d616ccc5 278 si = vnc_server_info_get(vs->vd);
fb6ba0d5 279 if (!si) {
586153d9
LC		 280 return;
281 }
282
fb6ba0d5
WX		 283 switch (event) {
284 case QAPI_EVENT_VNC_CONNECTED:
ddf21908
EB		 285 qapi_event_send_vnc_connected(si, qapi_VncClientInfo_base(vs->info),
286 &error_abort);
fb6ba0d5
WX		 287 break;
288 case QAPI_EVENT_VNC_INITIALIZED:
289 qapi_event_send_vnc_initialized(si, vs->info, &error_abort);
290 break;
291 case QAPI_EVENT_VNC_DISCONNECTED:
292 qapi_event_send_vnc_disconnected(si, vs->info, &error_abort);
293 break;
294 default:
295 break;
296 }
586153d9 297
fb6ba0d5 298 qapi_free_VncServerInfo(si);
586153d9
LC		 299}
300
2b54aa87 301static VncClientInfo *qmp_query_vnc_client(const VncState *client)
a9ce8590 302{
2b54aa87 303 VncClientInfo *info;
04d2529d 304 Error *err = NULL;
2b54aa87 305
04d2529d 306 info = g_malloc0(sizeof(*info));
2b54aa87 307
04d2529d
DB		 308 vnc_init_basic_info_from_remote_addr(client->sioc,
309 qapi_VncClientInfo_base(info),
310 &err);
311 if (err) {
312 error_free(err);
313 qapi_free_VncClientInfo(info);
2b54aa87
LC		 314 return NULL;
315 }
d96fd29c 316
ddf21908 317 info->websocket = client->websocket;
d96fd29c 318
3e305e4a
DB		 319 if (client->tls) {
320 info->x509_dname = qcrypto_tls_session_get_peer_name(client->tls);
321 info->has_x509_dname = info->x509_dname != NULL;
2b54aa87 322 }
d96fd29c 323#ifdef CONFIG_VNC_SASL
2b54aa87
LC		 324 if (client->sasl.conn && client->sasl.username) {
325 info->has_sasl_username = true;
326 info->sasl_username = g_strdup(client->sasl.username);
d96fd29c 327 }
2b54aa87 328#endif
1ff7df1a 329
2b54aa87 330 return info;
d96fd29c 331}
1ff7df1a 332
d616ccc5
GH		 333static VncDisplay *vnc_display_find(const char *id)
334{
335 VncDisplay *vd;
336
337 if (id == NULL) {
338 return QTAILQ_FIRST(&vnc_displays);
339 }
340 QTAILQ_FOREACH(vd, &vnc_displays, next) {
341 if (strcmp(id, vd->id) == 0) {
342 return vd;
343 }
344 }
345 return NULL;
346}
347
2d29a436
GH		 348static VncClientInfoList *qmp_query_client_list(VncDisplay *vd)
349{
350 VncClientInfoList *cinfo, *prev = NULL;
351 VncState *client;
352
353 QTAILQ_FOREACH(client, &vd->clients, next) {
354 cinfo = g_new0(VncClientInfoList, 1);
355 cinfo->value = qmp_query_vnc_client(client);
356 cinfo->next = prev;
357 prev = cinfo;
358 }
359 return prev;
360}
361
2b54aa87 362VncInfo *qmp_query_vnc(Error **errp)
d96fd29c 363{
2b54aa87 364 VncInfo *info = g_malloc0(sizeof(*info));
d616ccc5 365 VncDisplay *vd = vnc_display_find(NULL);
04d2529d 366 SocketAddress *addr = NULL;
2b54aa87 367
bf7aa45e 368 if (vd == NULL || !vd->enabled) {
2b54aa87 369 info->enabled = false;
d96fd29c 370 } else {
2b54aa87
LC		 371 info->enabled = true;
372
373 /* for compatibility with the original command */
374 info->has_clients = true;
2d29a436 375 info->clients = qmp_query_client_list(vd);
d96fd29c 376
04d2529d 377 if (vd->lsock == NULL) {
417b0b88
PB		 378 return info;
379 }
380
04d2529d
DB		 381 addr = qio_channel_socket_get_local_address(vd->lsock, errp);
382 if (!addr) {
2b54aa87
LC		 383 goto out_error;
384 }
d96fd29c 385
04d2529d
DB		 386 switch (addr->type) {
387 case SOCKET_ADDRESS_KIND_INET:
388 info->host = g_strdup(addr->u.inet->host);
389 info->service = g_strdup(addr->u.inet->port);
390 if (addr->u.inet->ipv6) {
391 info->family = NETWORK_ADDRESS_FAMILY_IPV6;
392 } else {
393 info->family = NETWORK_ADDRESS_FAMILY_IPV4;
394 }
395 break;
396
397 case SOCKET_ADDRESS_KIND_UNIX:
398 info->host = g_strdup("");
399 info->service = g_strdup(addr->u.q_unix->path);
400 info->family = NETWORK_ADDRESS_FAMILY_UNIX;
401 break;
402
403 default:
404 error_setg(errp, "Unsupported socket kind %d",
405 addr->type);
2b54aa87 406 goto out_error;
1ff7df1a 407 }
2b54aa87
LC		 408
409 info->has_host = true;
2b54aa87 410 info->has_service = true;
2b54aa87 411 info->has_family = true;
2b54aa87
LC		 412
413 info->has_auth = true;
d616ccc5 414 info->auth = g_strdup(vnc_auth_name(vd));
a9ce8590 415 }
2b54aa87 416
04d2529d 417 qapi_free_SocketAddress(addr);
2b54aa87
LC		 418 return info;
419
420out_error:
04d2529d 421 qapi_free_SocketAddress(addr);
2b54aa87
LC		 422 qapi_free_VncInfo(info);
423 return NULL;
a9ce8590
FB		 424}
425
04d2529d 426static VncBasicInfoList *qmp_query_server_entry(QIOChannelSocket *ioc,
4478aa76 427 bool websocket,
df887684
GH		 428 VncBasicInfoList *prev)
429{
430 VncBasicInfoList *list;
431 VncBasicInfo *info;
04d2529d
DB		 432 Error *err = NULL;
433 SocketAddress *addr;
434
435 addr = qio_channel_socket_get_local_address(ioc, &err);
436 if (!addr) {
437 error_free(err);
df887684
GH		 438 return prev;
439 }
440
441 info = g_new0(VncBasicInfo, 1);
04d2529d
DB		 442 vnc_init_basic_info(addr, info, &err);
443 qapi_free_SocketAddress(addr);
444 if (err) {
445 qapi_free_VncBasicInfo(info);
446 error_free(err);
447 return prev;
448 }
4478aa76 449 info->websocket = websocket;
df887684
GH		 450
451 list = g_new0(VncBasicInfoList, 1);
452 list->value = info;
453 list->next = prev;
454 return list;
455}
456
457static void qmp_query_auth(VncDisplay *vd, VncInfo2 *info)
458{
459 switch (vd->auth) {
460 case VNC_AUTH_VNC:
461 info->auth = VNC_PRIMARY_AUTH_VNC;
462 break;
463 case VNC_AUTH_RA2:
464 info->auth = VNC_PRIMARY_AUTH_RA2;
465 break;
466 case VNC_AUTH_RA2NE:
467 info->auth = VNC_PRIMARY_AUTH_RA2NE;
468 break;
469 case VNC_AUTH_TIGHT:
470 info->auth = VNC_PRIMARY_AUTH_TIGHT;
471 break;
472 case VNC_AUTH_ULTRA:
473 info->auth = VNC_PRIMARY_AUTH_ULTRA;
474 break;
475 case VNC_AUTH_TLS:
476 info->auth = VNC_PRIMARY_AUTH_TLS;
477 break;
478 case VNC_AUTH_VENCRYPT:
479 info->auth = VNC_PRIMARY_AUTH_VENCRYPT;
df887684
GH		 480 info->has_vencrypt = true;
481 switch (vd->subauth) {
482 case VNC_AUTH_VENCRYPT_PLAIN:
483 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_PLAIN;
484 break;
485 case VNC_AUTH_VENCRYPT_TLSNONE:
486 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_NONE;
487 break;
488 case VNC_AUTH_VENCRYPT_TLSVNC:
489 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_VNC;
490 break;
491 case VNC_AUTH_VENCRYPT_TLSPLAIN:
492 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_PLAIN;
493 break;
494 case VNC_AUTH_VENCRYPT_X509NONE:
495 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_NONE;
496 break;
497 case VNC_AUTH_VENCRYPT_X509VNC:
498 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_VNC;
499 break;
500 case VNC_AUTH_VENCRYPT_X509PLAIN:
501 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_PLAIN;
502 break;
503 case VNC_AUTH_VENCRYPT_TLSSASL:
504 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_SASL;
505 break;
506 case VNC_AUTH_VENCRYPT_X509SASL:
507 info->vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_SASL;
508 break;
509 default:
510 info->has_vencrypt = false;
511 break;
512 }
df887684
GH		 513 break;
514 case VNC_AUTH_SASL:
515 info->auth = VNC_PRIMARY_AUTH_SASL;
516 break;
517 case VNC_AUTH_NONE:
518 default:
519 info->auth = VNC_PRIMARY_AUTH_NONE;
520 break;
521 }
522}
523
524VncInfo2List *qmp_query_vnc_servers(Error **errp)
525{
526 VncInfo2List *item, *prev = NULL;
527 VncInfo2 *info;
528 VncDisplay *vd;
529 DeviceState *dev;
530
531 QTAILQ_FOREACH(vd, &vnc_displays, next) {
532 info = g_new0(VncInfo2, 1);
533 info->id = g_strdup(vd->id);
534 info->clients = qmp_query_client_list(vd);
535 qmp_query_auth(vd, info);
536 if (vd->dcl.con) {
537 dev = DEVICE(object_property_get_link(OBJECT(vd->dcl.con),
538 "device", NULL));
539 info->has_display = true;
540 info->display = g_strdup(dev->id);
541 }
04d2529d
DB		 542 if (vd->lsock != NULL) {
543 info->server = qmp_query_server_entry(
544 vd->lsock, false, info->server);
df887684 545 }
04d2529d
DB		 546 if (vd->lwebsock != NULL) {
547 info->server = qmp_query_server_entry(
548 vd->lwebsock, true, info->server);
df887684 549 }
df887684
GH		 550
551 item = g_new0(VncInfo2List, 1);
552 item->value = info;
553 item->next = prev;
554 prev = item;
555 }
556 return prev;
557}
558
24236869
FB		 559/* TODO
560 1) Get the queue working for IO.
561 2) there is some weirdness when using the -S option (the screen is grey
562 and not totally invalidated
563 3) resolutions > 1024
564*/
565
38ee14f4 566static int vnc_update_client(VncState *vs, int has_dirty, bool sync);
198a0039 567static void vnc_disconnect_start(VncState *vs);
24236869 568
753b4053 569static void vnc_colordepth(VncState *vs);
1fc62412
SS		 570static void framebuffer_update_request(VncState *vs, int incremental,
571 int x_position, int y_position,
572 int w, int h);
0f7b2864 573static void vnc_refresh(DisplayChangeListener *dcl);
1fc62412 574static int vnc_refresh_server_surface(VncDisplay *vd);
7eac3a87 575
d05959c2
GH		 576static int vnc_width(VncDisplay *vd)
577{
578 return MIN(VNC_MAX_WIDTH, ROUND_UP(surface_width(vd->ds),
579 VNC_DIRTY_PIXELS_PER_BIT));
580}
581
582static int vnc_height(VncDisplay *vd)
583{
584 return MIN(VNC_MAX_HEIGHT, surface_height(vd->ds));
585}
586
bea60dd7
PL		 587static void vnc_set_area_dirty(DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT],
588 VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT),
f7b3d68c
GH		 589 VncDisplay *vd,
590 int x, int y, int w, int h)
591{
592 int width = vnc_width(vd);
593 int height = vnc_height(vd);
594
91937225
PL		 595 /* this is needed this to ensure we updated all affected
596 * blocks if x % VNC_DIRTY_PIXELS_PER_BIT != 0 */
b4c85ddc
PL		 597 w += (x % VNC_DIRTY_PIXELS_PER_BIT);
598 x -= (x % VNC_DIRTY_PIXELS_PER_BIT);
0486e8a7 599
9f64916d
GH		 600 x = MIN(x, width);
601 y = MIN(y, height);
602 w = MIN(x + w, width) - x;
91937225 603 h = MIN(y + h, height);
788abf8e 604
b4c85ddc 605 for (; y < h; y++) {
bea60dd7 606 bitmap_set(dirty[y], x / VNC_DIRTY_PIXELS_PER_BIT,
91937225 607 DIV_ROUND_UP(w, VNC_DIRTY_PIXELS_PER_BIT));
b4c85ddc 608 }
24236869
FB		 609}
610
bea60dd7
PL		 611static void vnc_dpy_update(DisplayChangeListener *dcl,
612 int x, int y, int w, int h)
613{
614 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
615 struct VncSurface *s = &vd->guest;
bea60dd7 616
f7b3d68c 617 vnc_set_area_dirty(s->dirty, vd, x, y, w, h);
bea60dd7
PL		 618}
619
70a4568f
CC		 620void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
621 int32_t encoding)
24236869
FB		 622{
623 vnc_write_u16(vs, x);
624 vnc_write_u16(vs, y);
625 vnc_write_u16(vs, w);
626 vnc_write_u16(vs, h);
627
628 vnc_write_s32(vs, encoding);
629}
630
32ed2680 631
621aaeb9
GH		 632static void vnc_desktop_resize(VncState *vs)
633{
04d2529d 634 if (vs->ioc == NULL || !vnc_has_feature(vs, VNC_FEATURE_RESIZE)) {
621aaeb9
GH		 635 return;
636 }
bea60dd7
PL		 637 if (vs->client_width == pixman_image_get_width(vs->vd->server) &&
638 vs->client_height == pixman_image_get_height(vs->vd->server)) {
1d4b638a
GH		 639 return;
640 }
bea60dd7
PL		 641 vs->client_width = pixman_image_get_width(vs->vd->server);
642 vs->client_height = pixman_image_get_height(vs->vd->server);
bd023f95 643 vnc_lock_output(vs);
621aaeb9
GH		 644 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
645 vnc_write_u8(vs, 0);
646 vnc_write_u16(vs, 1); /* number of rects */
5862d195 647 vnc_framebuffer_update(vs, 0, 0, vs->client_width, vs->client_height,
621aaeb9 648 VNC_ENCODING_DESKTOPRESIZE);
bd023f95 649 vnc_unlock_output(vs);
621aaeb9
GH		 650 vnc_flush(vs);
651}
652
bd023f95
CC		 653static void vnc_abort_display_jobs(VncDisplay *vd)
654{
655 VncState *vs;
656
657 QTAILQ_FOREACH(vs, &vd->clients, next) {
658 vnc_lock_output(vs);
659 vs->abort = true;
660 vnc_unlock_output(vs);
661 }
662 QTAILQ_FOREACH(vs, &vd->clients, next) {
663 vnc_jobs_join(vs);
664 }
665 QTAILQ_FOREACH(vs, &vd->clients, next) {
666 vnc_lock_output(vs);
667 vs->abort = false;
668 vnc_unlock_output(vs);
669 }
670}
bd023f95 671
9f64916d
GH		 672int vnc_server_fb_stride(VncDisplay *vd)
673{
674 return pixman_image_get_stride(vd->server);
675}
676
677void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y)
678{
679 uint8_t *ptr;
680
681 ptr = (uint8_t *)pixman_image_get_data(vd->server);
682 ptr += y * vnc_server_fb_stride(vd);
683 ptr += x * VNC_SERVER_FB_BYTES;
684 return ptr;
685}
686
453f842b
GH		 687static void vnc_update_server_surface(VncDisplay *vd)
688{
689 qemu_pixman_image_unref(vd->server);
690 vd->server = NULL;
691
c7628bff
GH		 692 if (QTAILQ_EMPTY(&vd->clients)) {
693 return;
694 }
695
453f842b
GH		 696 vd->server = pixman_image_create_bits(VNC_SERVER_FB_FORMAT,
697 vnc_width(vd),
698 vnc_height(vd),
699 NULL, 0);
700}
701
c12aeb86 702static void vnc_dpy_switch(DisplayChangeListener *dcl,
c12aeb86 703 DisplaySurface *surface)
24236869 704{
21ef45d7 705 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
41b4bef6 706 VncState *vs;
bea60dd7 707 int width, height;
1fc62412 708
bd023f95 709 vnc_abort_display_jobs(vd);
453f842b 710 vd->ds = surface;
bd023f95 711
1fc62412 712 /* server surface */
453f842b 713 vnc_update_server_surface(vd);
24236869 714
6baebed7 715 /* guest surface */
9f64916d 716 qemu_pixman_image_unref(vd->guest.fb);
d39fa6d8
GH		 717 vd->guest.fb = pixman_image_ref(surface->image);
718 vd->guest.format = surface->format;
453f842b
GH		 719 width = vnc_width(vd);
720 height = vnc_height(vd);
bea60dd7 721 memset(vd->guest.dirty, 0x00, sizeof(vd->guest.dirty));
f7b3d68c 722 vnc_set_area_dirty(vd->guest.dirty, vd, 0, 0,
bea60dd7 723 width, height);
24236869 724
41b4bef6 725 QTAILQ_FOREACH(vs, &vd->clients, next) {
1fc62412 726 vnc_colordepth(vs);
1d4b638a 727 vnc_desktop_resize(vs);
d467b679
GH		 728 if (vs->vd->cursor) {
729 vnc_cursor_define(vs);
730 }
bea60dd7 731 memset(vs->dirty, 0x00, sizeof(vs->dirty));
f7b3d68c 732 vnc_set_area_dirty(vs->dirty, vd, 0, 0,
bea60dd7 733 width, height);
753b4053
AL		 734 }
735}
736
3512779a 737/* fastest code */
9f64916d 738static void vnc_write_pixels_copy(VncState *vs,
d467b679 739 void *pixels, int size)
3512779a
FB		 740{
741 vnc_write(vs, pixels, size);
742}
743
744/* slowest but generic code. */
70a4568f 745void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v)
3512779a 746{
7eac3a87 747 uint8_t r, g, b;
1fc62412 748
9f64916d
GH		 749#if VNC_SERVER_FB_FORMAT == PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8)
750 r = (((v & 0x00ff0000) >> 16) << vs->client_pf.rbits) >> 8;
751 g = (((v & 0x0000ff00) >> 8) << vs->client_pf.gbits) >> 8;
752 b = (((v & 0x000000ff) >> 0) << vs->client_pf.bbits) >> 8;
753#else
754# error need some bits here if you change VNC_SERVER_FB_FORMAT
755#endif
756 v = (r << vs->client_pf.rshift) |
757 (g << vs->client_pf.gshift) |
758 (b << vs->client_pf.bshift);
759 switch (vs->client_pf.bytes_per_pixel) {
3512779a
FB		 760 case 1:
761 buf[0] = v;
762 break;
763 case 2:
9f64916d 764 if (vs->client_be) {
3512779a
FB		 765 buf[0] = v >> 8;
766 buf[1] = v;
767 } else {
768 buf[1] = v >> 8;
769 buf[0] = v;
770 }
771 break;
772 default:
773 case 4:
9f64916d 774 if (vs->client_be) {
3512779a
FB		 775 buf[0] = v >> 24;
776 buf[1] = v >> 16;
777 buf[2] = v >> 8;
778 buf[3] = v;
779 } else {
780 buf[3] = v >> 24;
781 buf[2] = v >> 16;
782 buf[1] = v >> 8;
783 buf[0] = v;
784 }
785 break;
786 }
787}
788
9f64916d 789static void vnc_write_pixels_generic(VncState *vs,
d467b679 790 void *pixels1, int size)
3512779a 791{
3512779a 792 uint8_t buf[4];
3512779a 793
9f64916d 794 if (VNC_SERVER_FB_BYTES == 4) {
7eac3a87
AL		 795 uint32_t *pixels = pixels1;
796 int n, i;
797 n = size >> 2;
9f64916d 798 for (i = 0; i < n; i++) {
7eac3a87 799 vnc_convert_pixel(vs, buf, pixels[i]);
9f64916d 800 vnc_write(vs, buf, vs->client_pf.bytes_per_pixel);
7eac3a87 801 }
3512779a
FB		 802 }
803}
804
a885211e 805int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
24236869
FB		 806{
807 int i;
60fe76f3 808 uint8_t *row;
1fc62412 809 VncDisplay *vd = vs->vd;
24236869 810
9f64916d 811 row = vnc_server_fb_ptr(vd, x, y);
24236869 812 for (i = 0; i < h; i++) {
9f64916d
GH		 813 vs->write_pixels(vs, row, w * VNC_SERVER_FB_BYTES);
814 row += vnc_server_fb_stride(vd);
24236869 815 }
a885211e 816 return 1;
24236869
FB		 817}
818
bd023f95 819int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
24236869 820{
a885211e 821 int n = 0;
de3f7de7
PL		 822 bool encode_raw = false;
823 size_t saved_offs = vs->output.offset;
a885211e 824
fb437313 825 switch(vs->vnc_encoding) {
28a76be8 826 case VNC_ENCODING_ZLIB:
a885211e 827 n = vnc_zlib_send_framebuffer_update(vs, x, y, w, h);
28a76be8
AL		 828 break;
829 case VNC_ENCODING_HEXTILE:
830 vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_HEXTILE);
a885211e 831 n = vnc_hextile_send_framebuffer_update(vs, x, y, w, h);
28a76be8 832 break;
380282b0
CC		 833 case VNC_ENCODING_TIGHT:
834 n = vnc_tight_send_framebuffer_update(vs, x, y, w, h);
835 break;
efe556ad
CC		 836 case VNC_ENCODING_TIGHT_PNG:
837 n = vnc_tight_png_send_framebuffer_update(vs, x, y, w, h);
838 break;
148954fa
CC		 839 case VNC_ENCODING_ZRLE:
840 n = vnc_zrle_send_framebuffer_update(vs, x, y, w, h);
841 break;
842 case VNC_ENCODING_ZYWRLE:
843 n = vnc_zywrle_send_framebuffer_update(vs, x, y, w, h);
844 break;
28a76be8 845 default:
de3f7de7 846 encode_raw = true;
28a76be8 847 break;
fb437313 848 }
de3f7de7
PL		 849
850 /* If the client has the same pixel format as our internal buffer and
851 * a RAW encoding would need less space fall back to RAW encoding to
852 * save bandwidth and processing power in the client. */
853 if (!encode_raw && vs->write_pixels == vnc_write_pixels_copy &&
854 12 + h * w * VNC_SERVER_FB_BYTES <= (vs->output.offset - saved_offs)) {
855 vs->output.offset = saved_offs;
856 encode_raw = true;
857 }
858
859 if (encode_raw) {
860 vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW);
861 n = vnc_raw_send_framebuffer_update(vs, x, y, w, h);
862 }
863
a885211e 864 return n;
24236869
FB		 865}
866
753b4053 867static void vnc_copy(VncState *vs, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
24236869 868{
3e28c9ad 869 /* send bitblit op to the vnc client */
bd023f95 870 vnc_lock_output(vs);
46a183da 871 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
24236869
FB		 872 vnc_write_u8(vs, 0);
873 vnc_write_u16(vs, 1); /* number of rects */
29fa4ed9 874 vnc_framebuffer_update(vs, dst_x, dst_y, w, h, VNC_ENCODING_COPYRECT);
24236869
FB		 875 vnc_write_u16(vs, src_x);
876 vnc_write_u16(vs, src_y);
bd023f95 877 vnc_unlock_output(vs);
24236869
FB		 878 vnc_flush(vs);
879}
880
7c20b4a3 881static void vnc_dpy_copy(DisplayChangeListener *dcl,
7c20b4a3
GH		 882 int src_x, int src_y,
883 int dst_x, int dst_y, int w, int h)
753b4053 884{
21ef45d7 885 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
198a0039 886 VncState *vs, *vn;
1fc62412
SS		 887 uint8_t *src_row;
888 uint8_t *dst_row;
9f64916d 889 int i, x, y, pitch, inc, w_lim, s;
1fc62412 890 int cmp_bytes;
198a0039 891
7fe4a41c
GH		 892 if (!vd->server) {
893 /* no client connected */
894 return;
895 }
896
1fc62412 897 vnc_refresh_server_surface(vd);
41b4bef6 898 QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) {
198a0039
GH		 899 if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
900 vs->force_update = 1;
38ee14f4 901 vnc_update_client(vs, 1, true);
198a0039
GH		 902 /* vs might be free()ed here */
903 }
904 }
905
1fc62412 906 /* do bitblit op on the local surface too */
9f64916d
GH		 907 pitch = vnc_server_fb_stride(vd);
908 src_row = vnc_server_fb_ptr(vd, src_x, src_y);
909 dst_row = vnc_server_fb_ptr(vd, dst_x, dst_y);
1fc62412
SS		 910 y = dst_y;
911 inc = 1;
912 if (dst_y > src_y) {
913 /* copy backwards */
914 src_row += pitch * (h-1);
915 dst_row += pitch * (h-1);
916 pitch = -pitch;
917 y = dst_y + h - 1;
918 inc = -1;
919 }
b4c85ddc
PL		 920 w_lim = w - (VNC_DIRTY_PIXELS_PER_BIT - (dst_x % VNC_DIRTY_PIXELS_PER_BIT));
921 if (w_lim < 0) {
1fc62412 922 w_lim = w;
b4c85ddc
PL		 923 } else {
924 w_lim = w - (w_lim % VNC_DIRTY_PIXELS_PER_BIT);
925 }
1fc62412
SS		 926 for (i = 0; i < h; i++) {
927 for (x = 0; x <= w_lim;
928 x += s, src_row += cmp_bytes, dst_row += cmp_bytes) {
929 if (x == w_lim) {
930 if ((s = w - w_lim) == 0)
931 break;
932 } else if (!x) {
b4c85ddc
PL		 933 s = (VNC_DIRTY_PIXELS_PER_BIT -
934 (dst_x % VNC_DIRTY_PIXELS_PER_BIT));
1fc62412
SS		 935 s = MIN(s, w_lim);
936 } else {
b4c85ddc 937 s = VNC_DIRTY_PIXELS_PER_BIT;
1fc62412 938 }
9f64916d 939 cmp_bytes = s * VNC_SERVER_FB_BYTES;
1fc62412
SS		 940 if (memcmp(src_row, dst_row, cmp_bytes) == 0)
941 continue;
942 memmove(dst_row, src_row, cmp_bytes);
41b4bef6
AS		 943 QTAILQ_FOREACH(vs, &vd->clients, next) {
944 if (!vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
b4c85ddc
PL		 945 set_bit(((x + dst_x) / VNC_DIRTY_PIXELS_PER_BIT),
946 vs->dirty[y]);
41b4bef6 947 }
1fc62412
SS		 948 }
949 }
9f64916d
GH		 950 src_row += pitch - w * VNC_SERVER_FB_BYTES;
951 dst_row += pitch - w * VNC_SERVER_FB_BYTES;
1fc62412
SS		 952 y += inc;
953 }
954
41b4bef6
AS		 955 QTAILQ_FOREACH(vs, &vd->clients, next) {
956 if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
753b4053 957 vnc_copy(vs, src_x, src_y, dst_x, dst_y, w, h);
41b4bef6 958 }
753b4053
AL		 959 }
960}
961
7c20b4a3 962static void vnc_mouse_set(DisplayChangeListener *dcl,
7c20b4a3 963 int x, int y, int visible)
d467b679
GH		 964{
965 /* can we ask the client(s) to move the pointer ??? */
966}
967
968static int vnc_cursor_define(VncState *vs)
969{
970 QEMUCursor *c = vs->vd->cursor;
d467b679
GH		 971 int isize;
972
973 if (vnc_has_feature(vs, VNC_FEATURE_RICH_CURSOR)) {
d01f9595 974 vnc_lock_output(vs);
d467b679
GH		 975 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
976 vnc_write_u8(vs, 0); /* padding */
977 vnc_write_u16(vs, 1); /* # of rects */
978 vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height,
979 VNC_ENCODING_RICH_CURSOR);
9f64916d
GH		 980 isize = c->width * c->height * vs->client_pf.bytes_per_pixel;
981 vnc_write_pixels_generic(vs, c->data, isize);
d467b679 982 vnc_write(vs, vs->vd->cursor_mask, vs->vd->cursor_msize);
d01f9595 983 vnc_unlock_output(vs);
d467b679
GH		 984 return 0;
985 }
986 return -1;
987}
988
7c20b4a3 989static void vnc_dpy_cursor_define(DisplayChangeListener *dcl,
7c20b4a3 990 QEMUCursor *c)
d467b679 991{
d616ccc5 992 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
d467b679
GH		 993 VncState *vs;
994
995 cursor_put(vd->cursor);
7267c094 996 g_free(vd->cursor_mask);
d467b679
GH		 997
998 vd->cursor = c;
999 cursor_get(vd->cursor);
1000 vd->cursor_msize = cursor_get_mono_bpl(c) * c->height;
7267c094 1001 vd->cursor_mask = g_malloc0(vd->cursor_msize);
d467b679
GH		 1002 cursor_get_mono_mask(c, 0, vd->cursor_mask);
1003
1004 QTAILQ_FOREACH(vs, &vd->clients, next) {
1005 vnc_cursor_define(vs);
1006 }
1007}
1008
4769a881 1009static int find_and_clear_dirty_height(VncState *vs,
6c71a539 1010 int y, int last_x, int x, int height)
24236869
FB		 1011{
1012 int h;
1013
6c71a539 1014 for (h = 1; h < (height - y); h++) {
bc2429b9 1015 if (!test_bit(last_x, vs->dirty[y + h])) {
28a76be8 1016 break;
bc2429b9 1017 }
863d7c91 1018 bitmap_clear(vs->dirty[y + h], last_x, x - last_x);
24236869
FB		 1019 }
1020
1021 return h;
1022}
1023
38ee14f4 1024static int vnc_update_client(VncState *vs, int has_dirty, bool sync)
24236869 1025{
63658280 1026 vs->has_dirty += has_dirty;
04d2529d 1027 if (vs->need_update && vs->ioc != NULL) {
1fc62412 1028 VncDisplay *vd = vs->vd;
bd023f95 1029 VncJob *job;
28a76be8 1030 int y;
2f487a3d 1031 int height, width;
bd023f95
CC		 1032 int n = 0;
1033
703bc68f 1034 if (vs->output.offset && !vs->audio_cap && !vs->force_update)
c522d0e2 1035 /* kernel send buffers are full -> drop frames to throttle */
2430ffe4 1036 return 0;
a0ecfb73 1037
63658280 1038 if (!vs->has_dirty && !vs->audio_cap && !vs->force_update)
2430ffe4 1039 return 0;
28a76be8 1040
6baebed7
AL		 1041 /*
1042 * Send screen updates to the vnc client using the server
1043 * surface and server dirty map. guest surface updates
1044 * happening in parallel don't disturb us, the next pass will
1045 * send them to the client.
1046 */
bd023f95 1047 job = vnc_job_new(vs);
28a76be8 1048
bea60dd7
PL		 1049 height = pixman_image_get_height(vd->server);
1050 width = pixman_image_get_width(vd->server);
847ce6a1 1051
12b316d4
PL		 1052 y = 0;
1053 for (;;) {
1054 int x, h;
1055 unsigned long x2;
1056 unsigned long offset = find_next_bit((unsigned long *) &vs->dirty,
1057 height * VNC_DIRTY_BPL(vs),
1058 y * VNC_DIRTY_BPL(vs));
1059 if (offset == height * VNC_DIRTY_BPL(vs)) {
1060 /* no more dirty bits */
1061 break;
28a76be8 1062 }
12b316d4
PL		 1063 y = offset / VNC_DIRTY_BPL(vs);
1064 x = offset % VNC_DIRTY_BPL(vs);
1065 x2 = find_next_zero_bit((unsigned long *) &vs->dirty[y],
1066 VNC_DIRTY_BPL(vs), x);
1067 bitmap_clear(vs->dirty[y], x, x2 - x);
1068 h = find_and_clear_dirty_height(vs, y, x, x2, height);
2f487a3d
PL		 1069 x2 = MIN(x2, width / VNC_DIRTY_PIXELS_PER_BIT);
1070 if (x2 > x) {
1071 n += vnc_job_add_rect(job, x * VNC_DIRTY_PIXELS_PER_BIT, y,
1072 (x2 - x) * VNC_DIRTY_PIXELS_PER_BIT, h);
1073 }
0e7d6f60
PL		 1074 if (!x && x2 == width / VNC_DIRTY_PIXELS_PER_BIT) {
1075 y += h;
1076 if (y == height) {
1077 break;
1078 }
1079 }
28a76be8 1080 }
bd023f95
CC		 1081
1082 vnc_job_push(job);
eb214ff8
GH		 1083 if (sync) {
1084 vnc_jobs_join(vs);
1085 }
c522d0e2 1086 vs->force_update = 0;
63658280 1087 vs->has_dirty = 0;
bd023f95 1088 return n;
24236869 1089 }
24236869 1090
04d2529d 1091 if (vs->disconnecting) {
198a0039 1092 vnc_disconnect_finish(vs);
38ee14f4
GH		 1093 } else if (sync) {
1094 vnc_jobs_join(vs);
1095 }
2430ffe4
SS		 1096
1097 return 0;
24236869
FB		 1098}
1099
429a8ed3 1100/* audio */
1101static void audio_capture_notify(void *opaque, audcnotification_e cmd)
1102{
1103 VncState *vs = opaque;
1104
1105 switch (cmd) {
1106 case AUD_CNOTIFY_DISABLE:
bd023f95 1107 vnc_lock_output(vs);
46a183da
DB		 1108 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
1109 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
1110 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_END);
bd023f95 1111 vnc_unlock_output(vs);
429a8ed3 1112 vnc_flush(vs);
1113 break;
1114
1115 case AUD_CNOTIFY_ENABLE:
bd023f95 1116 vnc_lock_output(vs);
46a183da
DB		 1117 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
1118 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
1119 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_BEGIN);
bd023f95 1120 vnc_unlock_output(vs);
429a8ed3 1121 vnc_flush(vs);
1122 break;
1123 }
1124}
1125
1126static void audio_capture_destroy(void *opaque)
1127{
1128}
1129
1130static void audio_capture(void *opaque, void *buf, int size)
1131{
1132 VncState *vs = opaque;
1133
bd023f95 1134 vnc_lock_output(vs);
46a183da
DB		 1135 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
1136 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
1137 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_DATA);
429a8ed3 1138 vnc_write_u32(vs, size);
1139 vnc_write(vs, buf, size);
bd023f95 1140 vnc_unlock_output(vs);
429a8ed3 1141 vnc_flush(vs);
1142}
1143
1144static void audio_add(VncState *vs)
1145{
1146 struct audio_capture_ops ops;
1147
1148 if (vs->audio_cap) {
027a79c3 1149 error_report("audio already running");
429a8ed3 1150 return;
1151 }
1152
1153 ops.notify = audio_capture_notify;
1154 ops.destroy = audio_capture_destroy;
1155 ops.capture = audio_capture;
1156
1a7dafce 1157 vs->audio_cap = AUD_add_capture(&vs->as, &ops, vs);
429a8ed3 1158 if (!vs->audio_cap) {
027a79c3 1159 error_report("Failed to add audio capture");
429a8ed3 1160 }
1161}
1162
1163static void audio_del(VncState *vs)
1164{
1165 if (vs->audio_cap) {
1166 AUD_del_capture(vs->audio_cap, vs);
1167 vs->audio_cap = NULL;
1168 }
1169}
1170
198a0039
GH		 1171static void vnc_disconnect_start(VncState *vs)
1172{
04d2529d 1173 if (vs->disconnecting) {
198a0039 1174 return;
04d2529d 1175 }
8cf36489 1176 vnc_set_share_mode(vs, VNC_SHARE_MODE_DISCONNECTED);
04d2529d
DB		 1177 if (vs->ioc_tag) {
1178 g_source_remove(vs->ioc_tag);
1179 }
1180 qio_channel_close(vs->ioc, NULL);
1181 vs->disconnecting = TRUE;
198a0039
GH		 1182}
1183
7536ee4b 1184void vnc_disconnect_finish(VncState *vs)
198a0039 1185{
7d964c9d
CC		 1186 int i;
1187
bd023f95
CC		 1188 vnc_jobs_join(vs); /* Wait encoding jobs */
1189
1190 vnc_lock_output(vs);
fb6ba0d5 1191 vnc_qmp_event(vs, QAPI_EVENT_VNC_DISCONNECTED);
0d72f3d3 1192
5d418e3b
CC		 1193 buffer_free(&vs->input);
1194 buffer_free(&vs->output);
4a80dba3 1195
fb6ba0d5 1196 qapi_free_VncClientInfo(vs->info);
4a80dba3 1197
161c4f20 1198 vnc_zlib_clear(vs);
380282b0 1199 vnc_tight_clear(vs);
148954fa 1200 vnc_zrle_clear(vs);
161c4f20 1201
198a0039
GH		 1202#ifdef CONFIG_VNC_SASL
1203 vnc_sasl_client_cleanup(vs);
1204#endif /* CONFIG_VNC_SASL */
1205 audio_del(vs);
7bc9318b 1206 vnc_release_modifiers(vs);
198a0039 1207
6fd8e79a
TH		 1208 if (vs->initialized) {
1209 QTAILQ_REMOVE(&vs->vd->clients, vs, next);
1210 qemu_remove_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
c7628bff
GH		 1211 if (QTAILQ_EMPTY(&vs->vd->clients)) {
1212 /* last client gone */
1213 vnc_update_server_surface(vs->vd);
1214 }
6fd8e79a 1215 }
41b4bef6 1216
3a0558b5
GH		 1217 if (vs->vd->lock_key_sync)
1218 qemu_remove_led_event_handler(vs->led);
bd023f95
CC		 1219 vnc_unlock_output(vs);
1220
bd023f95 1221 qemu_mutex_destroy(&vs->output_mutex);
6fd8e79a
TH		 1222 if (vs->bh != NULL) {
1223 qemu_bh_delete(vs->bh);
1224 }
175b2a6e 1225 buffer_free(&vs->jobs_buffer);
175b2a6e 1226
7d964c9d 1227 for (i = 0; i < VNC_STAT_ROWS; ++i) {
7267c094 1228 g_free(vs->lossy_rect[i]);
7d964c9d 1229 }
7267c094 1230 g_free(vs->lossy_rect);
04d2529d
DB		 1231
1232 object_unref(OBJECT(vs->ioc));
1233 vs->ioc = NULL;
1234 object_unref(OBJECT(vs->sioc));
1235 vs->sioc = NULL;
7267c094 1236 g_free(vs);
198a0039 1237}
2f9606b3 1238
04d2529d 1239ssize_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp)
24236869 1240{
04d2529d
DB		 1241 if (ret <= 0) {
1242 if (ret == 0) {
1243 VNC_DEBUG("Closing down client sock: EOF\n");
1244 } else if (ret != QIO_CHANNEL_ERR_BLOCK) {
1245 VNC_DEBUG("Closing down client sock: ret %d (%s)\n",
1246 ret, errp ? error_get_pretty(*errp) : "Unknown");
ea01e5fd 1247 }
24236869 1248
198a0039 1249 vnc_disconnect_start(vs);
04d2529d
DB		 1250 if (errp) {
1251 error_free(*errp);
1252 *errp = NULL;
1253 }
28a76be8 1254 return 0;
24236869
FB		 1255 }
1256 return ret;
1257}
1258
5fb6c7a8
AL		 1259
1260void vnc_client_error(VncState *vs)
24236869 1261{
198a0039
GH		 1262 VNC_DEBUG("Closing down client sock: protocol error\n");
1263 vnc_disconnect_start(vs);
24236869
FB		 1264}
1265
3e305e4a 1266
2f9606b3
AL		 1267/*
1268 * Called to write a chunk of data to the client socket. The data may
1269 * be the raw data, or may have already been encoded by SASL.
1270 * The data will be written either straight onto the socket, or
1271 * written via the GNUTLS wrappers, if TLS/SSL encryption is enabled
1272 *
1273 * NB, it is theoretically possible to have 2 layers of encryption,
1274 * both SASL, and this TLS layer. It is highly unlikely in practice
1275 * though, since SASL encryption will typically be a no-op if TLS
1276 * is active
1277 *
1278 * Returns the number of bytes written, which may be less than
1279 * the requested 'datalen' if the socket would block. Returns
1280 * -1 on error, and disconnects the client socket.
1281 */
fdd1ab6a 1282ssize_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen)
24236869 1283{
04d2529d 1284 Error *err = NULL;
fdd1ab6a 1285 ssize_t ret;
2cc45228
DB		 1286 ret = qio_channel_write(
1287 vs->ioc, (const char *)data, datalen, &err);
23decc87 1288 VNC_DEBUG("Wrote wire %p %zd -> %ld\n", data, datalen, ret);
04d2529d 1289 return vnc_client_io_error(vs, ret, &err);
2f9606b3
AL		 1290}
1291
1292
1293/*
1294 * Called to write buffered data to the client socket, when not
1295 * using any SASL SSF encryption layers. Will write as much data
1296 * as possible without blocking. If all buffered data is written,
1297 * will switch the FD poll() handler back to read monitoring.
1298 *
1299 * Returns the number of bytes written, which may be less than
1300 * the buffered output data if the socket would block. Returns
1301 * -1 on error, and disconnects the client socket.
1302 */
fdd1ab6a 1303static ssize_t vnc_client_write_plain(VncState *vs)
2f9606b3 1304{
fdd1ab6a 1305 ssize_t ret;
2f9606b3
AL		 1306
1307#ifdef CONFIG_VNC_SASL
23decc87 1308 VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n",
2f9606b3
AL		 1309 vs->output.buffer, vs->output.capacity, vs->output.offset,
1310 vs->sasl.waitWriteSSF);
1311
1312 if (vs->sasl.conn &&
1313 vs->sasl.runSSF &&
1314 vs->sasl.waitWriteSSF) {
1315 ret = vnc_client_write_buf(vs, vs->output.buffer, vs->sasl.waitWriteSSF);
1316 if (ret)
1317 vs->sasl.waitWriteSSF -= ret;
1318 } else
1319#endif /* CONFIG_VNC_SASL */
1320 ret = vnc_client_write_buf(vs, vs->output.buffer, vs->output.offset);
24236869 1321 if (!ret)
2f9606b3 1322 return 0;
24236869 1323
32ed2680 1324 buffer_advance(&vs->output, ret);
24236869
FB		 1325
1326 if (vs->output.offset == 0) {
04d2529d
DB		 1327 if (vs->ioc_tag) {
1328 g_source_remove(vs->ioc_tag);
1329 }
1330 vs->ioc_tag = qio_channel_add_watch(
1331 vs->ioc, G_IO_IN, vnc_client_io, vs, NULL);
24236869 1332 }
2f9606b3
AL		 1333
1334 return ret;
1335}
1336
1337
1338/*
1339 * First function called whenever there is data to be written to
1340 * the client socket. Will delegate actual work according to whether
1341 * SASL SSF layers are enabled (thus requiring encryption calls)
1342 */
04d2529d 1343static void vnc_client_write_locked(VncState *vs)
2f9606b3 1344{
2f9606b3
AL		 1345#ifdef CONFIG_VNC_SASL
1346 if (vs->sasl.conn &&
1347 vs->sasl.runSSF &&
9678d950
BS		 1348 !vs->sasl.waitWriteSSF) {
1349 vnc_client_write_sasl(vs);
1350 } else
2f9606b3 1351#endif /* CONFIG_VNC_SASL */
7536ee4b 1352 {
d5f04223 1353 vnc_client_write_plain(vs);
7536ee4b 1354 }
24236869
FB		 1355}
1356
04d2529d 1357static void vnc_client_write(VncState *vs)
bd023f95 1358{
bd023f95
CC		 1359
1360 vnc_lock_output(vs);
d5f04223 1361 if (vs->output.offset) {
04d2529d
DB		 1362 vnc_client_write_locked(vs);
1363 } else if (vs->ioc != NULL) {
1364 if (vs->ioc_tag) {
1365 g_source_remove(vs->ioc_tag);
1366 }
1367 vs->ioc_tag = qio_channel_add_watch(
1368 vs->ioc, G_IO_IN, vnc_client_io, vs, NULL);
bd023f95
CC		 1369 }
1370 vnc_unlock_output(vs);
1371}
1372
5fb6c7a8 1373void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting)
24236869
FB		 1374{
1375 vs->read_handler = func;
1376 vs->read_handler_expect = expecting;
1377}
1378
2f9606b3
AL		 1379
1380/*
1381 * Called to read a chunk of data from the client socket. The data may
1382 * be the raw data, or may need to be further decoded by SASL.
1383 * The data will be read either straight from to the socket, or
1384 * read via the GNUTLS wrappers, if TLS/SSL encryption is enabled
1385 *
1386 * NB, it is theoretically possible to have 2 layers of encryption,
1387 * both SASL, and this TLS layer. It is highly unlikely in practice
1388 * though, since SASL encryption will typically be a no-op if TLS
1389 * is active
1390 *
1391 * Returns the number of bytes read, which may be less than
1392 * the requested 'datalen' if the socket would block. Returns
1393 * -1 on error, and disconnects the client socket.
1394 */
fdd1ab6a 1395ssize_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen)
24236869 1396{
fdd1ab6a 1397 ssize_t ret;
04d2529d 1398 Error *err = NULL;
2cc45228
DB		 1399 ret = qio_channel_read(
1400 vs->ioc, (char *)data, datalen, &err);
23decc87 1401 VNC_DEBUG("Read wire %p %zd -> %ld\n", data, datalen, ret);
04d2529d 1402 return vnc_client_io_error(vs, ret, &err);
2f9606b3 1403}
24236869 1404
2f9606b3
AL		 1405
1406/*
1407 * Called to read data from the client socket to the input buffer,
1408 * when not using any SASL SSF encryption layers. Will read as much
1409 * data as possible without blocking.
1410 *
1411 * Returns the number of bytes read. Returns -1 on error, and
1412 * disconnects the client socket.
1413 */
fdd1ab6a 1414static ssize_t vnc_client_read_plain(VncState *vs)
2f9606b3 1415{
fdd1ab6a 1416 ssize_t ret;
23decc87 1417 VNC_DEBUG("Read plain %p size %zd offset %zd\n",
2f9606b3
AL		 1418 vs->input.buffer, vs->input.capacity, vs->input.offset);
1419 buffer_reserve(&vs->input, 4096);
1420 ret = vnc_client_read_buf(vs, buffer_end(&vs->input), 4096);
1421 if (!ret)
1422 return 0;
24236869 1423 vs->input.offset += ret;
2f9606b3
AL		 1424 return ret;
1425}
1426
175b2a6e
CC		 1427static void vnc_jobs_bh(void *opaque)
1428{
1429 VncState *vs = opaque;
1430
1431 vnc_jobs_consume_buffer(vs);
1432}
2f9606b3
AL		 1433
1434/*
1435 * First function called whenever there is more data to be read from
1436 * the client socket. Will delegate actual work according to whether
1437 * SASL SSF layers are enabled (thus requiring decryption calls)
1438 */
04d2529d 1439static void vnc_client_read(VncState *vs)
2f9606b3 1440{
fdd1ab6a 1441 ssize_t ret;
2f9606b3
AL		 1442
1443#ifdef CONFIG_VNC_SASL
1444 if (vs->sasl.conn && vs->sasl.runSSF)
1445 ret = vnc_client_read_sasl(vs);
1446 else
1447#endif /* CONFIG_VNC_SASL */
d5f04223 1448 ret = vnc_client_read_plain(vs);
198a0039 1449 if (!ret) {
04d2529d 1450 if (vs->disconnecting) {
198a0039 1451 vnc_disconnect_finish(vs);
04d2529d 1452 }
28a76be8 1453 return;
198a0039 1454 }
24236869
FB		 1455
1456 while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
28a76be8
AL		 1457 size_t len = vs->read_handler_expect;
1458 int ret;
1459
1460 ret = vs->read_handler(vs, vs->input.buffer, len);
04d2529d 1461 if (vs->disconnecting) {
198a0039 1462 vnc_disconnect_finish(vs);
28a76be8 1463 return;
198a0039 1464 }
28a76be8
AL		 1465
1466 if (!ret) {
32ed2680 1467 buffer_advance(&vs->input, len);
28a76be8
AL		 1468 } else {
1469 vs->read_handler_expect = ret;
1470 }
24236869
FB		 1471 }
1472}
1473
04d2529d
DB		 1474gboolean vnc_client_io(QIOChannel *ioc G_GNUC_UNUSED,
1475 GIOCondition condition, void *opaque)
1476{
1477 VncState *vs = opaque;
1478 if (condition & G_IO_IN) {
1479 vnc_client_read(vs);
1480 }
1481 if (condition & G_IO_OUT) {
1482 vnc_client_write(vs);
1483 }
1484 return TRUE;
1485}
1486
1487
5fb6c7a8 1488void vnc_write(VncState *vs, const void *data, size_t len)
24236869
FB		 1489{
1490 buffer_reserve(&vs->output, len);
1491
04d2529d
DB		 1492 if (vs->ioc != NULL && buffer_empty(&vs->output)) {
1493 if (vs->ioc_tag) {
1494 g_source_remove(vs->ioc_tag);
1495 }
1496 vs->ioc_tag = qio_channel_add_watch(
1497 vs->ioc, G_IO_IN | G_IO_OUT, vnc_client_io, vs, NULL);
24236869
FB		 1498 }
1499
1500 buffer_append(&vs->output, data, len);
1501}
1502
5fb6c7a8 1503void vnc_write_s32(VncState *vs, int32_t value)
24236869
FB		 1504{
1505 vnc_write_u32(vs, *(uint32_t *)&value);
1506}
1507
5fb6c7a8 1508void vnc_write_u32(VncState *vs, uint32_t value)
24236869
FB		 1509{
1510 uint8_t buf[4];
1511
1512 buf[0] = (value >> 24) & 0xFF;
1513 buf[1] = (value >> 16) & 0xFF;
1514 buf[2] = (value >> 8) & 0xFF;
1515 buf[3] = value & 0xFF;
1516
1517 vnc_write(vs, buf, 4);
1518}
1519
5fb6c7a8 1520void vnc_write_u16(VncState *vs, uint16_t value)
24236869 1521{
64f5a135 1522 uint8_t buf[2];
24236869
FB		 1523
1524 buf[0] = (value >> 8) & 0xFF;
1525 buf[1] = value & 0xFF;
1526
1527 vnc_write(vs, buf, 2);
1528}
1529
5fb6c7a8 1530void vnc_write_u8(VncState *vs, uint8_t value)
24236869
FB		 1531{
1532 vnc_write(vs, (char *)&value, 1);
1533}
1534
5fb6c7a8 1535void vnc_flush(VncState *vs)
24236869 1536{
bd023f95 1537 vnc_lock_output(vs);
d5f04223 1538 if (vs->ioc != NULL && vs->output.offset) {
bd023f95
CC		 1539 vnc_client_write_locked(vs);
1540 }
1541 vnc_unlock_output(vs);
24236869
FB		 1542}
1543
71a8cdec 1544static uint8_t read_u8(uint8_t *data, size_t offset)
24236869
FB		 1545{
1546 return data[offset];
1547}
1548
71a8cdec 1549static uint16_t read_u16(uint8_t *data, size_t offset)
24236869
FB		 1550{
1551 return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF);
1552}
1553
71a8cdec 1554static int32_t read_s32(uint8_t *data, size_t offset)
24236869
FB		 1555{
1556 return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) |
28a76be8 1557 (data[offset + 2] << 8) | data[offset + 3]);
24236869
FB		 1558}
1559
5fb6c7a8 1560uint32_t read_u32(uint8_t *data, size_t offset)
24236869
FB		 1561{
1562 return ((data[offset] << 24) | (data[offset + 1] << 16) |
28a76be8 1563 (data[offset + 2] << 8) | data[offset + 3]);
24236869
FB		 1564}
1565
60fe76f3 1566static void client_cut_text(VncState *vs, size_t len, uint8_t *text)
24236869
FB		 1567{
1568}
1569
9e8dd451 1570static void check_pointer_type_change(Notifier *notifier, void *data)
564c337e 1571{
37c34d9d 1572 VncState *vs = container_of(notifier, VncState, mouse_mode_notifier);
14768eba 1573 int absolute = qemu_input_is_absolute();
37c34d9d 1574
29fa4ed9 1575 if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE) && vs->absolute != absolute) {
bd023f95 1576 vnc_lock_output(vs);
46a183da 1577 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
28a76be8
AL		 1578 vnc_write_u8(vs, 0);
1579 vnc_write_u16(vs, 1);
1580 vnc_framebuffer_update(vs, absolute, 0,
bea60dd7
PL		 1581 pixman_image_get_width(vs->vd->server),
1582 pixman_image_get_height(vs->vd->server),
29fa4ed9 1583 VNC_ENCODING_POINTER_TYPE_CHANGE);
bd023f95 1584 vnc_unlock_output(vs);
28a76be8 1585 vnc_flush(vs);
564c337e
FB		 1586 }
1587 vs->absolute = absolute;
1588}
1589
24236869
FB		 1590static void pointer_event(VncState *vs, int button_mask, int x, int y)
1591{
7fb1cf16 1592 static uint32_t bmap[INPUT_BUTTON__MAX] = {
14768eba
GH		 1593 [INPUT_BUTTON_LEFT] = 0x01,
1594 [INPUT_BUTTON_MIDDLE] = 0x02,
1595 [INPUT_BUTTON_RIGHT] = 0x04,
d20a580b
EB		 1596 [INPUT_BUTTON_WHEELUP] = 0x08,
1597 [INPUT_BUTTON_WHEELDOWN] = 0x10,
14768eba
GH		 1598 };
1599 QemuConsole *con = vs->vd->dcl.con;
bea60dd7
PL		 1600 int width = pixman_image_get_width(vs->vd->server);
1601 int height = pixman_image_get_height(vs->vd->server);
24236869 1602
14768eba
GH		 1603 if (vs->last_bmask != button_mask) {
1604 qemu_input_update_buttons(con, bmap, vs->last_bmask, button_mask);
1605 vs->last_bmask = button_mask;
1606 }
564c337e
FB		 1607
1608 if (vs->absolute) {
14768eba
GH		 1609 qemu_input_queue_abs(con, INPUT_AXIS_X, x, width);
1610 qemu_input_queue_abs(con, INPUT_AXIS_Y, y, height);
29fa4ed9 1611 } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) {
14768eba
GH		 1612 qemu_input_queue_rel(con, INPUT_AXIS_X, x - 0x7FFF);
1613 qemu_input_queue_rel(con, INPUT_AXIS_Y, y - 0x7FFF);
564c337e 1614 } else {
14768eba
GH		 1615 if (vs->last_x != -1) {
1616 qemu_input_queue_rel(con, INPUT_AXIS_X, x - vs->last_x);
1617 qemu_input_queue_rel(con, INPUT_AXIS_Y, y - vs->last_y);
1618 }
28a76be8
AL		 1619 vs->last_x = x;
1620 vs->last_y = y;
24236869 1621 }
14768eba 1622 qemu_input_event_sync();
24236869
FB		 1623}
1624
64f5a135
FB		 1625static void reset_keys(VncState *vs)
1626{
1627 int i;
1628 for(i = 0; i < 256; i++) {
1629 if (vs->modifiers_state[i]) {
8d447d10 1630 qemu_input_event_send_key_number(vs->vd->dcl.con, i, false);
64f5a135
FB		 1631 vs->modifiers_state[i] = 0;
1632 }
1633 }
1634}
1635
a528b80c
AZ		 1636static void press_key(VncState *vs, int keysym)
1637{
44bb61c8 1638 int keycode = keysym2scancode(vs->vd->kbd_layout, keysym) & SCANCODE_KEYMASK;
8d447d10 1639 qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, true);
2deb4acc 1640 qemu_input_event_send_key_delay(0);
8d447d10 1641 qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, false);
2deb4acc 1642 qemu_input_event_send_key_delay(0);
a528b80c
AZ		 1643}
1644
ab99e5c1
LL		 1645static int current_led_state(VncState *vs)
1646{
1647 int ledstate = 0;
1648
1649 if (vs->modifiers_state[0x46]) {
1650 ledstate |= QEMU_SCROLL_LOCK_LED;
1651 }
1652 if (vs->modifiers_state[0x45]) {
1653 ledstate |= QEMU_NUM_LOCK_LED;
1654 }
1655 if (vs->modifiers_state[0x3a]) {
1656 ledstate |= QEMU_CAPS_LOCK_LED;
1657 }
1658
1659 return ledstate;
1660}
1661
1662static void vnc_led_state_change(VncState *vs)
1663{
1664 int ledstate = 0;
1665
1666 if (!vnc_has_feature(vs, VNC_FEATURE_LED_STATE)) {
1667 return;
1668 }
1669
1670 ledstate = current_led_state(vs);
1671 vnc_lock_output(vs);
1672 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
1673 vnc_write_u8(vs, 0);
1674 vnc_write_u16(vs, 1);
1675 vnc_framebuffer_update(vs, 0, 0, 1, 1, VNC_ENCODING_LED_STATE);
1676 vnc_write_u8(vs, ledstate);
1677 vnc_unlock_output(vs);
1678 vnc_flush(vs);
1679}
1680
7ffb82ca
GH		 1681static void kbd_leds(void *opaque, int ledstate)
1682{
1683 VncState *vs = opaque;
96f3d174 1684 int caps, num, scr;
1483adcf 1685 bool has_changed = (ledstate != current_led_state(vs));
7ffb82ca 1686
40066175
GH		 1687 trace_vnc_key_guest_leds((ledstate & QEMU_CAPS_LOCK_LED),
1688 (ledstate & QEMU_NUM_LOCK_LED),
1689 (ledstate & QEMU_SCROLL_LOCK_LED));
1690
7ffb82ca
GH		 1691 caps = ledstate & QEMU_CAPS_LOCK_LED ? 1 : 0;
1692 num = ledstate & QEMU_NUM_LOCK_LED ? 1 : 0;
96f3d174 1693 scr = ledstate & QEMU_SCROLL_LOCK_LED ? 1 : 0;
7ffb82ca
GH		 1694
1695 if (vs->modifiers_state[0x3a] != caps) {
1696 vs->modifiers_state[0x3a] = caps;
1697 }
1698 if (vs->modifiers_state[0x45] != num) {
1699 vs->modifiers_state[0x45] = num;
1700 }
96f3d174
LL		 1701 if (vs->modifiers_state[0x46] != scr) {
1702 vs->modifiers_state[0x46] = scr;
1703 }
ab99e5c1
LL		 1704
1705 /* Sending the current led state message to the client */
1483adcf 1706 if (has_changed) {
ab99e5c1
LL		 1707 vnc_led_state_change(vs);
1708 }
7ffb82ca
GH		 1709}
1710
9ca313aa 1711static void do_key_event(VncState *vs, int down, int keycode, int sym)
24236869 1712{
64f5a135
FB		 1713 /* QEMU console switch */
1714 switch(keycode) {
1715 case 0x2a: /* Left Shift */
1716 case 0x36: /* Right Shift */
1717 case 0x1d: /* Left CTRL */
1718 case 0x9d: /* Right CTRL */
1719 case 0x38: /* Left ALT */
1720 case 0xb8: /* Right ALT */
1721 if (down)
1722 vs->modifiers_state[keycode] = 1;
1723 else
1724 vs->modifiers_state[keycode] = 0;
1725 break;
5fafdf24 1726 case 0x02 ... 0x0a: /* '1' to '9' keys */
1d0d59fe
GH		 1727 if (vs->vd->dcl.con == NULL &&
1728 down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
64f5a135
FB		 1729 /* Reset the modifiers sent to the current console */
1730 reset_keys(vs);
1731 console_select(keycode - 0x02);
1732 return;
1733 }
1734 break;
28a76be8
AL		 1735 case 0x3a: /* CapsLock */
1736 case 0x45: /* NumLock */
7ffb82ca 1737 if (down)
a528b80c
AZ		 1738 vs->modifiers_state[keycode] ^= 1;
1739 break;
1740 }
1741
e7b2aacc
LL		 1742 /* Turn off the lock state sync logic if the client support the led
1743 state extension.
1744 */
9892088b 1745 if (down && vs->vd->lock_key_sync &&
e7b2aacc 1746 !vnc_has_feature(vs, VNC_FEATURE_LED_STATE) &&
3a0558b5 1747 keycode_is_keypad(vs->vd->kbd_layout, keycode)) {
a528b80c
AZ		 1748 /* If the numlock state needs to change then simulate an additional
1749 keypress before sending this one. This will happen if the user
1750 toggles numlock away from the VNC window.
1751 */
753b4053 1752 if (keysym_is_numlock(vs->vd->kbd_layout, sym & 0xFFFF)) {
a528b80c 1753 if (!vs->modifiers_state[0x45]) {
40066175 1754 trace_vnc_key_sync_numlock(true);
a528b80c
AZ		 1755 vs->modifiers_state[0x45] = 1;
1756 press_key(vs, 0xff7f);
1757 }
1758 } else {
1759 if (vs->modifiers_state[0x45]) {
40066175 1760 trace_vnc_key_sync_numlock(false);
a528b80c
AZ		 1761 vs->modifiers_state[0x45] = 0;
1762 press_key(vs, 0xff7f);
1763 }
1764 }
64f5a135 1765 }
24236869 1766
9892088b 1767 if (down && vs->vd->lock_key_sync &&
e7b2aacc 1768 !vnc_has_feature(vs, VNC_FEATURE_LED_STATE) &&
3a0558b5 1769 ((sym >= 'A' && sym <= 'Z') || (sym >= 'a' && sym <= 'z'))) {
6b132502
GH		 1770 /* If the capslock state needs to change then simulate an additional
1771 keypress before sending this one. This will happen if the user
1772 toggles capslock away from the VNC window.
1773 */
1774 int uppercase = !!(sym >= 'A' && sym <= 'Z');
1775 int shift = !!(vs->modifiers_state[0x2a] | vs->modifiers_state[0x36]);
1776 int capslock = !!(vs->modifiers_state[0x3a]);
1777 if (capslock) {
1778 if (uppercase == shift) {
40066175 1779 trace_vnc_key_sync_capslock(false);
6b132502
GH		 1780 vs->modifiers_state[0x3a] = 0;
1781 press_key(vs, 0xffe5);
1782 }
1783 } else {
1784 if (uppercase != shift) {
40066175 1785 trace_vnc_key_sync_capslock(true);
6b132502
GH		 1786 vs->modifiers_state[0x3a] = 1;
1787 press_key(vs, 0xffe5);
1788 }
1789 }
1790 }
1791
81c0d5a6 1792 if (qemu_console_is_graphic(NULL)) {
8d447d10 1793 qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, down);
64f5a135 1794 } else {
e26437c2
GH		 1795 bool numlock = vs->modifiers_state[0x45];
1796 bool control = (vs->modifiers_state[0x1d] ||
1797 vs->modifiers_state[0x9d]);
64f5a135
FB		 1798 /* QEMU console emulation */
1799 if (down) {
1800 switch (keycode) {
1801 case 0x2a: /* Left Shift */
1802 case 0x36: /* Right Shift */
1803 case 0x1d: /* Left CTRL */
1804 case 0x9d: /* Right CTRL */
1805 case 0x38: /* Left ALT */
1806 case 0xb8: /* Right ALT */
1807 break;
1808 case 0xc8:
1809 kbd_put_keysym(QEMU_KEY_UP);
1810 break;
1811 case 0xd0:
1812 kbd_put_keysym(QEMU_KEY_DOWN);
1813 break;
1814 case 0xcb:
1815 kbd_put_keysym(QEMU_KEY_LEFT);
1816 break;
1817 case 0xcd:
1818 kbd_put_keysym(QEMU_KEY_RIGHT);
1819 break;
1820 case 0xd3:
1821 kbd_put_keysym(QEMU_KEY_DELETE);
1822 break;
1823 case 0xc7:
1824 kbd_put_keysym(QEMU_KEY_HOME);
1825 break;
1826 case 0xcf:
1827 kbd_put_keysym(QEMU_KEY_END);
1828 break;
1829 case 0xc9:
1830 kbd_put_keysym(QEMU_KEY_PAGEUP);
1831 break;
1832 case 0xd1:
1833 kbd_put_keysym(QEMU_KEY_PAGEDOWN);
1834 break;
bb0a18e1
GH		 1835
1836 case 0x47:
1837 kbd_put_keysym(numlock ? '7' : QEMU_KEY_HOME);
1838 break;
1839 case 0x48:
1840 kbd_put_keysym(numlock ? '8' : QEMU_KEY_UP);
1841 break;
1842 case 0x49:
1843 kbd_put_keysym(numlock ? '9' : QEMU_KEY_PAGEUP);
1844 break;
1845 case 0x4b:
1846 kbd_put_keysym(numlock ? '4' : QEMU_KEY_LEFT);
1847 break;
1848 case 0x4c:
1849 kbd_put_keysym('5');
1850 break;
1851 case 0x4d:
1852 kbd_put_keysym(numlock ? '6' : QEMU_KEY_RIGHT);
1853 break;
1854 case 0x4f:
1855 kbd_put_keysym(numlock ? '1' : QEMU_KEY_END);
1856 break;
1857 case 0x50:
1858 kbd_put_keysym(numlock ? '2' : QEMU_KEY_DOWN);
1859 break;
1860 case 0x51:
1861 kbd_put_keysym(numlock ? '3' : QEMU_KEY_PAGEDOWN);
1862 break;
1863 case 0x52:
1864 kbd_put_keysym('0');
1865 break;
1866 case 0x53:
1867 kbd_put_keysym(numlock ? '.' : QEMU_KEY_DELETE);
1868 break;
1869
1870 case 0xb5:
1871 kbd_put_keysym('/');
1872 break;
1873 case 0x37:
1874 kbd_put_keysym('*');
1875 break;
1876 case 0x4a:
1877 kbd_put_keysym('-');
1878 break;
1879 case 0x4e:
1880 kbd_put_keysym('+');
1881 break;
1882 case 0x9c:
1883 kbd_put_keysym('\n');
1884 break;
1885
64f5a135 1886 default:
e26437c2
GH		 1887 if (control) {
1888 kbd_put_keysym(sym & 0x1f);
1889 } else {
1890 kbd_put_keysym(sym);
1891 }
64f5a135
FB		 1892 break;
1893 }
1894 }
1895 }
24236869
FB		 1896}
1897
7bc9318b
GH		 1898static void vnc_release_modifiers(VncState *vs)
1899{
1900 static const int keycodes[] = {
1901 /* shift, control, alt keys, both left & right */
1902 0x2a, 0x36, 0x1d, 0x9d, 0x38, 0xb8,
1903 };
1904 int i, keycode;
1905
81c0d5a6 1906 if (!qemu_console_is_graphic(NULL)) {
7bc9318b
GH		 1907 return;
1908 }
1909 for (i = 0; i < ARRAY_SIZE(keycodes); i++) {
1910 keycode = keycodes[i];
1911 if (!vs->modifiers_state[keycode]) {
1912 continue;
1913 }
8d447d10 1914 qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, false);
7bc9318b
GH		 1915 }
1916}
1917
40066175
GH		 1918static const char *code2name(int keycode)
1919{
1920 return QKeyCode_lookup[qemu_input_key_number_to_qcode(keycode)];
1921}
1922
bdbd7676
FB		 1923static void key_event(VncState *vs, int down, uint32_t sym)
1924{
9ca313aa 1925 int keycode;
4a93fe17 1926 int lsym = sym;
9ca313aa 1927
81c0d5a6 1928 if (lsym >= 'A' && lsym <= 'Z' && qemu_console_is_graphic(NULL)) {
4a93fe17
GH		 1929 lsym = lsym - 'A' + 'a';
1930 }
9ca313aa 1931
44bb61c8 1932 keycode = keysym2scancode(vs->vd->kbd_layout, lsym & 0xFFFF) & SCANCODE_KEYMASK;
40066175 1933 trace_vnc_key_event_map(down, sym, keycode, code2name(keycode));
9ca313aa
AL		 1934 do_key_event(vs, down, keycode, sym);
1935}
1936
1937static void ext_key_event(VncState *vs, int down,
1938 uint32_t sym, uint16_t keycode)
1939{
1940 /* if the user specifies a keyboard layout, always use it */
40066175 1941 if (keyboard_layout) {
9ca313aa 1942 key_event(vs, down, sym);
40066175
GH		 1943 } else {
1944 trace_vnc_key_event_ext(down, sym, keycode, code2name(keycode));
9ca313aa 1945 do_key_event(vs, down, keycode, sym);
40066175 1946 }
bdbd7676
FB		 1947}
1948
24236869 1949static void framebuffer_update_request(VncState *vs, int incremental,
bea60dd7 1950 int x, int y, int w, int h)
24236869 1951{
24236869 1952 vs->need_update = 1;
bea60dd7
PL		 1953
1954 if (incremental) {
1955 return;
24236869 1956 }
bea60dd7 1957
07535a89 1958 vs->force_update = 1;
f7b3d68c 1959 vnc_set_area_dirty(vs->dirty, vs->vd, x, y, w, h);
24236869
FB		 1960}
1961
9ca313aa
AL		 1962static void send_ext_key_event_ack(VncState *vs)
1963{
bd023f95 1964 vnc_lock_output(vs);
46a183da 1965 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
9ca313aa
AL		 1966 vnc_write_u8(vs, 0);
1967 vnc_write_u16(vs, 1);
d39fa6d8 1968 vnc_framebuffer_update(vs, 0, 0,
bea60dd7
PL		 1969 pixman_image_get_width(vs->vd->server),
1970 pixman_image_get_height(vs->vd->server),
29fa4ed9 1971 VNC_ENCODING_EXT_KEY_EVENT);
bd023f95 1972 vnc_unlock_output(vs);
9ca313aa
AL		 1973 vnc_flush(vs);
1974}
1975
429a8ed3 1976static void send_ext_audio_ack(VncState *vs)
1977{
bd023f95 1978 vnc_lock_output(vs);
46a183da 1979 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
429a8ed3 1980 vnc_write_u8(vs, 0);
1981 vnc_write_u16(vs, 1);
d39fa6d8 1982 vnc_framebuffer_update(vs, 0, 0,
bea60dd7
PL		 1983 pixman_image_get_width(vs->vd->server),
1984 pixman_image_get_height(vs->vd->server),
29fa4ed9 1985 VNC_ENCODING_AUDIO);
bd023f95 1986 vnc_unlock_output(vs);
429a8ed3 1987 vnc_flush(vs);
1988}
1989
24236869
FB		 1990static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
1991{
1992 int i;
29fa4ed9 1993 unsigned int enc = 0;
24236869 1994
29fa4ed9 1995 vs->features = 0;
a9f20d31 1996 vs->vnc_encoding = 0;
d1af0e05
CC		 1997 vs->tight.compression = 9;
1998 vs->tight.quality = -1; /* Lossless by default */
564c337e 1999 vs->absolute = -1;
24236869 2000
8a0f0d0c
CC		 2001 /*
2002 * Start from the end because the encodings are sent in order of preference.
e5bed759 2003 * This way the preferred encoding (first encoding defined in the array)
8a0f0d0c
CC		 2004 * will be set at the end of the loop.
2005 */
24236869 2006 for (i = n_encodings - 1; i >= 0; i--) {
29fa4ed9
AL		 2007 enc = encodings[i];
2008 switch (enc) {
2009 case VNC_ENCODING_RAW:
a9f20d31 2010 vs->vnc_encoding = enc;
29fa4ed9
AL		 2011 break;
2012 case VNC_ENCODING_COPYRECT:
753b4053 2013 vs->features |= VNC_FEATURE_COPYRECT_MASK;
29fa4ed9
AL		 2014 break;
2015 case VNC_ENCODING_HEXTILE:
2016 vs->features |= VNC_FEATURE_HEXTILE_MASK;
a9f20d31 2017 vs->vnc_encoding = enc;
29fa4ed9 2018 break;
380282b0
CC		 2019 case VNC_ENCODING_TIGHT:
2020 vs->features |= VNC_FEATURE_TIGHT_MASK;
2021 vs->vnc_encoding = enc;
2022 break;
fe3e7f2d 2023#ifdef CONFIG_VNC_PNG
efe556ad
CC		 2024 case VNC_ENCODING_TIGHT_PNG:
2025 vs->features |= VNC_FEATURE_TIGHT_PNG_MASK;
2026 vs->vnc_encoding = enc;
2027 break;
fe3e7f2d 2028#endif
059cef40
AL		 2029 case VNC_ENCODING_ZLIB:
2030 vs->features |= VNC_FEATURE_ZLIB_MASK;
a9f20d31 2031 vs->vnc_encoding = enc;
059cef40 2032 break;
148954fa
CC		 2033 case VNC_ENCODING_ZRLE:
2034 vs->features |= VNC_FEATURE_ZRLE_MASK;
2035 vs->vnc_encoding = enc;
2036 break;
2037 case VNC_ENCODING_ZYWRLE:
2038 vs->features |= VNC_FEATURE_ZYWRLE_MASK;
2039 vs->vnc_encoding = enc;
2040 break;
29fa4ed9
AL		 2041 case VNC_ENCODING_DESKTOPRESIZE:
2042 vs->features |= VNC_FEATURE_RESIZE_MASK;
2043 break;
2044 case VNC_ENCODING_POINTER_TYPE_CHANGE:
2045 vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK;
2046 break;
d467b679
GH		 2047 case VNC_ENCODING_RICH_CURSOR:
2048 vs->features |= VNC_FEATURE_RICH_CURSOR_MASK;
2049 break;
29fa4ed9 2050 case VNC_ENCODING_EXT_KEY_EVENT:
9ca313aa
AL		 2051 send_ext_key_event_ack(vs);
2052 break;
29fa4ed9 2053 case VNC_ENCODING_AUDIO:
429a8ed3 2054 send_ext_audio_ack(vs);
2055 break;
29fa4ed9
AL		 2056 case VNC_ENCODING_WMVi:
2057 vs->features |= VNC_FEATURE_WMVI_MASK;
ca4cca4d 2058 break;
ab99e5c1
LL		 2059 case VNC_ENCODING_LED_STATE:
2060 vs->features |= VNC_FEATURE_LED_STATE_MASK;
2061 break;
fb437313 2062 case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9:
d1af0e05 2063 vs->tight.compression = (enc & 0x0F);
fb437313
AL		 2064 break;
2065 case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9:
b31f519e
CC		 2066 if (vs->vd->lossy) {
2067 vs->tight.quality = (enc & 0x0F);
2068 }
fb437313 2069 break;
29fa4ed9
AL		 2070 default:
2071 VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc);
2072 break;
2073 }
24236869 2074 }
6356e472 2075 vnc_desktop_resize(vs);
9e8dd451 2076 check_pointer_type_change(&vs->mouse_mode_notifier, NULL);
ab99e5c1 2077 vnc_led_state_change(vs);
24236869
FB		 2078}
2079
6cec5487
AL		 2080static void set_pixel_conversion(VncState *vs)
2081{
9f64916d
GH		 2082 pixman_format_code_t fmt = qemu_pixman_get_format(&vs->client_pf);
2083
2084 if (fmt == VNC_SERVER_FB_FORMAT) {
6cec5487 2085 vs->write_pixels = vnc_write_pixels_copy;
70a4568f 2086 vnc_hextile_set_pixel_conversion(vs, 0);
6cec5487
AL		 2087 } else {
2088 vs->write_pixels = vnc_write_pixels_generic;
70a4568f 2089 vnc_hextile_set_pixel_conversion(vs, 1);
6cec5487
AL		 2090 }
2091}
2092
24236869 2093static void set_pixel_format(VncState *vs,
28a76be8
AL		 2094 int bits_per_pixel, int depth,
2095 int big_endian_flag, int true_color_flag,
2096 int red_max, int green_max, int blue_max,
2097 int red_shift, int green_shift, int blue_shift)
24236869 2098{
3512779a 2099 if (!true_color_flag) {
28a76be8 2100 vnc_client_error(vs);
3512779a
FB		 2101 return;
2102 }
24236869 2103
e6908bfe
PM		 2104 switch (bits_per_pixel) {
2105 case 8:
2106 case 16:
2107 case 32:
2108 break;
2109 default:
2110 vnc_client_error(vs);
2111 return;
2112 }
2113
4c65fed8 2114 vs->client_pf.rmax = red_max ? red_max : 0xFF;
9f64916d
GH		 2115 vs->client_pf.rbits = hweight_long(red_max);
2116 vs->client_pf.rshift = red_shift;
2117 vs->client_pf.rmask = red_max << red_shift;
4c65fed8 2118 vs->client_pf.gmax = green_max ? green_max : 0xFF;
9f64916d
GH		 2119 vs->client_pf.gbits = hweight_long(green_max);
2120 vs->client_pf.gshift = green_shift;
2121 vs->client_pf.gmask = green_max << green_shift;
4c65fed8 2122 vs->client_pf.bmax = blue_max ? blue_max : 0xFF;
9f64916d
GH		 2123 vs->client_pf.bbits = hweight_long(blue_max);
2124 vs->client_pf.bshift = blue_shift;
2125 vs->client_pf.bmask = blue_max << blue_shift;
2126 vs->client_pf.bits_per_pixel = bits_per_pixel;
2127 vs->client_pf.bytes_per_pixel = bits_per_pixel / 8;
2128 vs->client_pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel;
2129 vs->client_be = big_endian_flag;
6cec5487
AL		 2130
2131 set_pixel_conversion(vs);
24236869 2132
1d0d59fe
GH		 2133 graphic_hw_invalidate(vs->vd->dcl.con);
2134 graphic_hw_update(vs->vd->dcl.con);
24236869
FB		 2135}
2136
ca4cca4d
AL		 2137static void pixel_format_message (VncState *vs) {
2138 char pad[3] = { 0, 0, 0 };
2139
9f64916d
GH		 2140 vs->client_pf = qemu_default_pixelformat(32);
2141
2142 vnc_write_u8(vs, vs->client_pf.bits_per_pixel); /* bits-per-pixel */
2143 vnc_write_u8(vs, vs->client_pf.depth); /* depth */
ca4cca4d 2144
e2542fe2 2145#ifdef HOST_WORDS_BIGENDIAN
ca4cca4d
AL		 2146 vnc_write_u8(vs, 1); /* big-endian-flag */
2147#else
2148 vnc_write_u8(vs, 0); /* big-endian-flag */
2149#endif
2150 vnc_write_u8(vs, 1); /* true-color-flag */
9f64916d
GH		 2151 vnc_write_u16(vs, vs->client_pf.rmax); /* red-max */
2152 vnc_write_u16(vs, vs->client_pf.gmax); /* green-max */
2153 vnc_write_u16(vs, vs->client_pf.bmax); /* blue-max */
2154 vnc_write_u8(vs, vs->client_pf.rshift); /* red-shift */
2155 vnc_write_u8(vs, vs->client_pf.gshift); /* green-shift */
2156 vnc_write_u8(vs, vs->client_pf.bshift); /* blue-shift */
2157 vnc_write(vs, pad, 3); /* padding */
70a4568f
CC		 2158
2159 vnc_hextile_set_pixel_conversion(vs, 0);
ca4cca4d 2160 vs->write_pixels = vnc_write_pixels_copy;
ca4cca4d
AL		 2161}
2162
753b4053 2163static void vnc_colordepth(VncState *vs)
7eac3a87 2164{
753b4053 2165 if (vnc_has_feature(vs, VNC_FEATURE_WMVI)) {
ca4cca4d 2166 /* Sending a WMVi message to notify the client*/
bd023f95 2167 vnc_lock_output(vs);
46a183da 2168 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
ca4cca4d
AL		 2169 vnc_write_u8(vs, 0);
2170 vnc_write_u16(vs, 1); /* number of rects */
d39fa6d8 2171 vnc_framebuffer_update(vs, 0, 0,
bea60dd7
PL		 2172 pixman_image_get_width(vs->vd->server),
2173 pixman_image_get_height(vs->vd->server),
d39fa6d8 2174 VNC_ENCODING_WMVi);
ca4cca4d 2175 pixel_format_message(vs);
bd023f95 2176 vnc_unlock_output(vs);
ca4cca4d 2177 vnc_flush(vs);
7eac3a87 2178 } else {
6cec5487 2179 set_pixel_conversion(vs);
7eac3a87
AL		 2180 }
2181}
2182
60fe76f3 2183static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
24236869
FB		 2184{
2185 int i;
2186 uint16_t limit;
2430ffe4
SS		 2187 VncDisplay *vd = vs->vd;
2188
2189 if (data[0] > 3) {
0f7b2864 2190 update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
2430ffe4 2191 }
24236869
FB		 2192
2193 switch (data[0]) {
46a183da 2194 case VNC_MSG_CLIENT_SET_PIXEL_FORMAT:
28a76be8
AL		 2195 if (len == 1)
2196 return 20;
2197
2198 set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5),
2199 read_u8(data, 6), read_u8(data, 7),
2200 read_u16(data, 8), read_u16(data, 10),
2201 read_u16(data, 12), read_u8(data, 14),
2202 read_u8(data, 15), read_u8(data, 16));
2203 break;
46a183da 2204 case VNC_MSG_CLIENT_SET_ENCODINGS:
28a76be8
AL		 2205 if (len == 1)
2206 return 4;
24236869 2207
28a76be8 2208 if (len == 4) {
69dd5c9f
AL		 2209 limit = read_u16(data, 2);
2210 if (limit > 0)
2211 return 4 + (limit * 4);
2212 } else
2213 limit = read_u16(data, 2);
24236869 2214
28a76be8
AL		 2215 for (i = 0; i < limit; i++) {
2216 int32_t val = read_s32(data, 4 + (i * 4));
2217 memcpy(data + 4 + (i * 4), &val, sizeof(val));
2218 }
24236869 2219
28a76be8
AL		 2220 set_encodings(vs, (int32_t *)(data + 4), limit);
2221 break;
46a183da 2222 case VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST:
28a76be8
AL		 2223 if (len == 1)
2224 return 10;
24236869 2225
28a76be8
AL		 2226 framebuffer_update_request(vs,
2227 read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
2228 read_u16(data, 6), read_u16(data, 8));
2229 break;
46a183da 2230 case VNC_MSG_CLIENT_KEY_EVENT:
28a76be8
AL		 2231 if (len == 1)
2232 return 8;
24236869 2233
28a76be8
AL		 2234 key_event(vs, read_u8(data, 1), read_u32(data, 4));
2235 break;
46a183da 2236 case VNC_MSG_CLIENT_POINTER_EVENT:
28a76be8
AL		 2237 if (len == 1)
2238 return 6;
24236869 2239
28a76be8
AL		 2240 pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
2241 break;
46a183da 2242 case VNC_MSG_CLIENT_CUT_TEXT:
f9a70e79 2243 if (len == 1) {
28a76be8 2244 return 8;
f9a70e79 2245 }
28a76be8 2246 if (len == 8) {
baa7666c 2247 uint32_t dlen = read_u32(data, 4);
f9a70e79
PL		 2248 if (dlen > (1 << 20)) {
2249 error_report("vnc: client_cut_text msg payload has %u bytes"
2250 " which exceeds our limit of 1MB.", dlen);
2251 vnc_client_error(vs);
2252 break;
2253 }
2254 if (dlen > 0) {
baa7666c 2255 return 8 + dlen;
f9a70e79 2256 }
baa7666c 2257 }
24236869 2258
28a76be8
AL		 2259 client_cut_text(vs, read_u32(data, 4), data + 8);
2260 break;
46a183da 2261 case VNC_MSG_CLIENT_QEMU:
9ca313aa
AL		 2262 if (len == 1)
2263 return 2;
2264
2265 switch (read_u8(data, 1)) {
46a183da 2266 case VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT:
9ca313aa
AL		 2267 if (len == 2)
2268 return 12;
2269
2270 ext_key_event(vs, read_u16(data, 2),
2271 read_u32(data, 4), read_u32(data, 8));
2272 break;
46a183da 2273 case VNC_MSG_CLIENT_QEMU_AUDIO:
429a8ed3 2274 if (len == 2)
2275 return 4;
2276
2277 switch (read_u16 (data, 2)) {
46a183da 2278 case VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE:
429a8ed3 2279 audio_add(vs);
2280 break;
46a183da 2281 case VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE:
429a8ed3 2282 audio_del(vs);
2283 break;
46a183da 2284 case VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT:
429a8ed3 2285 if (len == 4)
2286 return 10;
2287 switch (read_u8(data, 4)) {
2288 case 0: vs->as.fmt = AUD_FMT_U8; break;
2289 case 1: vs->as.fmt = AUD_FMT_S8; break;
2290 case 2: vs->as.fmt = AUD_FMT_U16; break;
2291 case 3: vs->as.fmt = AUD_FMT_S16; break;
2292 case 4: vs->as.fmt = AUD_FMT_U32; break;
2293 case 5: vs->as.fmt = AUD_FMT_S32; break;
2294 default:
153130cd 2295 VNC_DEBUG("Invalid audio format %d\n", read_u8(data, 4));
429a8ed3 2296 vnc_client_error(vs);
2297 break;
2298 }
2299 vs->as.nchannels = read_u8(data, 5);
2300 if (vs->as.nchannels != 1 && vs->as.nchannels != 2) {
153130cd
DB		 2301 VNC_DEBUG("Invalid audio channel coount %d\n",
2302 read_u8(data, 5));
429a8ed3 2303 vnc_client_error(vs);
2304 break;
2305 }
2306 vs->as.freq = read_u32(data, 6);
2307 break;
2308 default:
153130cd 2309 VNC_DEBUG("Invalid audio message %d\n", read_u8(data, 4));
429a8ed3 2310 vnc_client_error(vs);
2311 break;
2312 }
2313 break;
2314
9ca313aa 2315 default:
153130cd 2316 VNC_DEBUG("Msg: %d\n", read_u16(data, 0));
9ca313aa
AL		 2317 vnc_client_error(vs);
2318 break;
2319 }
2320 break;
24236869 2321 default:
153130cd 2322 VNC_DEBUG("Msg: %d\n", data[0]);
28a76be8
AL		 2323 vnc_client_error(vs);
2324 break;
24236869 2325 }
5fafdf24 2326
24236869
FB		 2327 vnc_read_when(vs, protocol_client_msg, 1);
2328 return 0;
2329}
2330
60fe76f3 2331static int protocol_client_init(VncState *vs, uint8_t *data, size_t len)
24236869 2332{
c35734b2 2333 char buf[1024];
8cf36489 2334 VncShareMode mode;
c35734b2 2335 int size;
24236869 2336
8cf36489
GH		 2337 mode = data[0] ? VNC_SHARE_MODE_SHARED : VNC_SHARE_MODE_EXCLUSIVE;
2338 switch (vs->vd->share_policy) {
2339 case VNC_SHARE_POLICY_IGNORE:
2340 /*
2341 * Ignore the shared flag. Nothing to do here.
2342 *
2343 * Doesn't conform to the rfb spec but is traditional qemu
2344 * behavior, thus left here as option for compatibility
2345 * reasons.
2346 */
2347 break;
2348 case VNC_SHARE_POLICY_ALLOW_EXCLUSIVE:
2349 /*
2350 * Policy: Allow clients ask for exclusive access.
2351 *
2352 * Implementation: When a client asks for exclusive access,
2353 * disconnect all others. Shared connects are allowed as long
2354 * as no exclusive connection exists.
2355 *
2356 * This is how the rfb spec suggests to handle the shared flag.
2357 */
2358 if (mode == VNC_SHARE_MODE_EXCLUSIVE) {
2359 VncState *client;
2360 QTAILQ_FOREACH(client, &vs->vd->clients, next) {
2361 if (vs == client) {
2362 continue;
2363 }
2364 if (client->share_mode != VNC_SHARE_MODE_EXCLUSIVE &&
2365 client->share_mode != VNC_SHARE_MODE_SHARED) {
2366 continue;
2367 }
2368 vnc_disconnect_start(client);
2369 }
2370 }
2371 if (mode == VNC_SHARE_MODE_SHARED) {
2372 if (vs->vd->num_exclusive > 0) {
2373 vnc_disconnect_start(vs);
2374 return 0;
2375 }
2376 }
2377 break;
2378 case VNC_SHARE_POLICY_FORCE_SHARED:
2379 /*
2380 * Policy: Shared connects only.
2381 * Implementation: Disallow clients asking for exclusive access.
2382 *
2383 * Useful for shared desktop sessions where you don't want
2384 * someone forgetting to say -shared when running the vnc
2385 * client disconnect everybody else.
2386 */
2387 if (mode == VNC_SHARE_MODE_EXCLUSIVE) {
2388 vnc_disconnect_start(vs);
2389 return 0;
2390 }
2391 break;
2392 }
2393 vnc_set_share_mode(vs, mode);
2394
e5f34cdd
GH		 2395 if (vs->vd->num_shared > vs->vd->connections_limit) {
2396 vnc_disconnect_start(vs);
2397 return 0;
2398 }
2399
bea60dd7
PL		 2400 vs->client_width = pixman_image_get_width(vs->vd->server);
2401 vs->client_height = pixman_image_get_height(vs->vd->server);
5862d195
GH		 2402 vnc_write_u16(vs, vs->client_width);
2403 vnc_write_u16(vs, vs->client_height);
24236869 2404
ca4cca4d 2405 pixel_format_message(vs);
24236869 2406
c35734b2
TS		 2407 if (qemu_name)
2408 size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name);
2409 else
2410 size = snprintf(buf, sizeof(buf), "QEMU");
2411
2412 vnc_write_u32(vs, size);
2413 vnc_write(vs, buf, size);
24236869
FB		 2414 vnc_flush(vs);
2415
4a80dba3 2416 vnc_client_cache_auth(vs);
fb6ba0d5 2417 vnc_qmp_event(vs, QAPI_EVENT_VNC_INITIALIZED);
4a80dba3 2418
24236869
FB		 2419 vnc_read_when(vs, protocol_client_msg, 1);
2420
2421 return 0;
2422}
2423
5fb6c7a8
AL		 2424void start_client_init(VncState *vs)
2425{
2426 vnc_read_when(vs, protocol_client_init, 1);
2427}
2428
70848515
TS		 2429static void make_challenge(VncState *vs)
2430{
2431 int i;
2432
2433 srand(time(NULL)+getpid()+getpid()*987654+rand());
2434
2435 for (i = 0 ; i < sizeof(vs->challenge) ; i++)
2436 vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0));
2437}
2438
60fe76f3 2439static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len)
70848515 2440{
60fe76f3 2441 unsigned char response[VNC_AUTH_CHALLENGE_SIZE];
800567a6 2442 size_t i, pwlen;
60fe76f3 2443 unsigned char key[8];
3c9405a0 2444 time_t now = time(NULL);
60928458 2445 QCryptoCipher *cipher = NULL;
800567a6 2446 Error *err = NULL;
70848515 2447
1cd20f8b 2448 if (!vs->vd->password) {
28a76be8 2449 VNC_DEBUG("No password configured on server");
6bffdf0f 2450 goto reject;
70848515 2451 }
3c9405a0
GH		 2452 if (vs->vd->expires < now) {
2453 VNC_DEBUG("Password is expired");
2454 goto reject;
2455 }
70848515
TS		 2456
2457 memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE);
2458
2459 /* Calculate the expected challenge response */
753b4053 2460 pwlen = strlen(vs->vd->password);
70848515 2461 for (i=0; i<sizeof(key); i++)
753b4053 2462 key[i] = i<pwlen ? vs->vd->password[i] : 0;
800567a6
DB		 2463
2464 cipher = qcrypto_cipher_new(
2465 QCRYPTO_CIPHER_ALG_DES_RFB,
2466 QCRYPTO_CIPHER_MODE_ECB,
2467 key, G_N_ELEMENTS(key),
2468 &err);
2469 if (!cipher) {
2470 VNC_DEBUG("Cannot initialize cipher %s",
2471 error_get_pretty(err));
2472 error_free(err);
2473 goto reject;
2474 }
2475
a1695137 2476 if (qcrypto_cipher_encrypt(cipher,
800567a6
DB		 2477 vs->challenge,
2478 response,
2479 VNC_AUTH_CHALLENGE_SIZE,
2480 &err) < 0) {
2481 VNC_DEBUG("Cannot encrypt challenge %s",
2482 error_get_pretty(err));
2483 error_free(err);
2484 goto reject;
2485 }
70848515
TS		 2486
2487 /* Compare expected vs actual challenge response */
2488 if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) {
e5bed759 2489 VNC_DEBUG("Client challenge response did not match\n");
6bffdf0f 2490 goto reject;
70848515 2491 } else {
28a76be8
AL		 2492 VNC_DEBUG("Accepting VNC challenge response\n");
2493 vnc_write_u32(vs, 0); /* Accept auth */
2494 vnc_flush(vs);
70848515 2495
5fb6c7a8 2496 start_client_init(vs);
70848515 2497 }
60928458
GA		 2498
2499 qcrypto_cipher_free(cipher);
70848515 2500 return 0;
6bffdf0f
GH		 2501
2502reject:
2503 vnc_write_u32(vs, 1); /* Reject auth */
2504 if (vs->minor >= 8) {
2505 static const char err[] = "Authentication failed";
2506 vnc_write_u32(vs, sizeof(err));
2507 vnc_write(vs, err, sizeof(err));
2508 }
2509 vnc_flush(vs);
2510 vnc_client_error(vs);
60928458 2511 qcrypto_cipher_free(cipher);
6bffdf0f 2512 return 0;
70848515
TS		 2513}
2514
5fb6c7a8 2515void start_auth_vnc(VncState *vs)
70848515
TS		 2516{
2517 make_challenge(vs);
2518 /* Send client a 'random' challenge */
2519 vnc_write(vs, vs->challenge, sizeof(vs->challenge));
2520 vnc_flush(vs);
2521
2522 vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge));
469b15c6
TS		 2523}
2524
2525
60fe76f3 2526static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len)
70848515
TS		 2527{
2528 /* We only advertise 1 auth scheme at a time, so client
2529 * must pick the one we sent. Verify this */
7e7e2ebc 2530 if (data[0] != vs->auth) { /* Reject auth */
1263b7d6 2531 VNC_DEBUG("Reject auth %d because it didn't match advertized\n", (int)data[0]);
70848515
TS		 2532 vnc_write_u32(vs, 1);
2533 if (vs->minor >= 8) {
2534 static const char err[] = "Authentication failed";
2535 vnc_write_u32(vs, sizeof(err));
2536 vnc_write(vs, err, sizeof(err));
2537 }
2538 vnc_client_error(vs);
2539 } else { /* Accept requested auth */
2540 VNC_DEBUG("Client requested auth %d\n", (int)data[0]);
7e7e2ebc 2541 switch (vs->auth) {
70848515
TS		 2542 case VNC_AUTH_NONE:
2543 VNC_DEBUG("Accept auth none\n");
a26c97ad
AZ		 2544 if (vs->minor >= 8) {
2545 vnc_write_u32(vs, 0); /* Accept auth completion */
2546 vnc_flush(vs);
2547 }
5fb6c7a8 2548 start_client_init(vs);
70848515
TS		 2549 break;
2550
2551 case VNC_AUTH_VNC:
2552 VNC_DEBUG("Start VNC auth\n");
5fb6c7a8
AL		 2553 start_auth_vnc(vs);
2554 break;
70848515 2555
8d5d2d4c 2556 case VNC_AUTH_VENCRYPT:
3a93113a 2557 VNC_DEBUG("Accept VeNCrypt auth\n");
5fb6c7a8
AL		 2558 start_auth_vencrypt(vs);
2559 break;
8d5d2d4c 2560
2f9606b3
AL		 2561#ifdef CONFIG_VNC_SASL
2562 case VNC_AUTH_SASL:
2563 VNC_DEBUG("Accept SASL auth\n");
2564 start_auth_sasl(vs);
2565 break;
2566#endif /* CONFIG_VNC_SASL */
2567
70848515 2568 default: /* Should not be possible, but just in case */
7e7e2ebc 2569 VNC_DEBUG("Reject auth %d server code bug\n", vs->auth);
70848515
TS		 2570 vnc_write_u8(vs, 1);
2571 if (vs->minor >= 8) {
2572 static const char err[] = "Authentication failed";
2573 vnc_write_u32(vs, sizeof(err));
2574 vnc_write(vs, err, sizeof(err));
2575 }
2576 vnc_client_error(vs);
2577 }
2578 }
2579 return 0;
2580}
2581
60fe76f3 2582static int protocol_version(VncState *vs, uint8_t *version, size_t len)
24236869
FB		 2583{
2584 char local[13];
24236869
FB		 2585
2586 memcpy(local, version, 12);
2587 local[12] = 0;
2588
70848515 2589 if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) {
28a76be8
AL		 2590 VNC_DEBUG("Malformed protocol version %s\n", local);
2591 vnc_client_error(vs);
2592 return 0;
24236869 2593 }
70848515
TS		 2594 VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor);
2595 if (vs->major != 3 ||
28a76be8
AL		 2596 (vs->minor != 3 &&
2597 vs->minor != 4 &&
2598 vs->minor != 5 &&
2599 vs->minor != 7 &&
2600 vs->minor != 8)) {
2601 VNC_DEBUG("Unsupported client version\n");
2602 vnc_write_u32(vs, VNC_AUTH_INVALID);
2603 vnc_flush(vs);
2604 vnc_client_error(vs);
2605 return 0;
70848515 2606 }
b0566f4f 2607 /* Some broken clients report v3.4 or v3.5, which spec requires to be treated
70848515
TS		 2608 * as equivalent to v3.3 by servers
2609 */
b0566f4f 2610 if (vs->minor == 4 || vs->minor == 5)
28a76be8 2611 vs->minor = 3;
70848515
TS		 2612
2613 if (vs->minor == 3) {
7e7e2ebc 2614 if (vs->auth == VNC_AUTH_NONE) {
70848515 2615 VNC_DEBUG("Tell client auth none\n");
7e7e2ebc 2616 vnc_write_u32(vs, vs->auth);
70848515 2617 vnc_flush(vs);
28a76be8 2618 start_client_init(vs);
7e7e2ebc 2619 } else if (vs->auth == VNC_AUTH_VNC) {
70848515 2620 VNC_DEBUG("Tell client VNC auth\n");
7e7e2ebc 2621 vnc_write_u32(vs, vs->auth);
70848515
TS		 2622 vnc_flush(vs);
2623 start_auth_vnc(vs);
2624 } else {
7e7e2ebc 2625 VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->auth);
70848515
TS		 2626 vnc_write_u32(vs, VNC_AUTH_INVALID);
2627 vnc_flush(vs);
2628 vnc_client_error(vs);
2629 }
2630 } else {
7e7e2ebc 2631 VNC_DEBUG("Telling client we support auth %d\n", vs->auth);
28a76be8 2632 vnc_write_u8(vs, 1); /* num auth */
7e7e2ebc 2633 vnc_write_u8(vs, vs->auth);
28a76be8
AL		 2634 vnc_read_when(vs, protocol_client_auth, 1);
2635 vnc_flush(vs);
70848515 2636 }
24236869
FB		 2637
2638 return 0;
2639}
2640
999342a0
CC		 2641static VncRectStat *vnc_stat_rect(VncDisplay *vd, int x, int y)
2642{
2643 struct VncSurface *vs = &vd->guest;
2644
2645 return &vs->stats[y / VNC_STAT_RECT][x / VNC_STAT_RECT];
2646}
2647
7d964c9d
CC		 2648void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h)
2649{
2650 int i, j;
2651
2652 w = (x + w) / VNC_STAT_RECT;
2653 h = (y + h) / VNC_STAT_RECT;
2654 x /= VNC_STAT_RECT;
2655 y /= VNC_STAT_RECT;
2656
207f328a
CC		 2657 for (j = y; j <= h; j++) {
2658 for (i = x; i <= w; i++) {
7d964c9d
CC		 2659 vs->lossy_rect[j][i] = 1;
2660 }
2661 }
2662}
2663
2664static int vnc_refresh_lossy_rect(VncDisplay *vd, int x, int y)
2665{
2666 VncState *vs;
2667 int sty = y / VNC_STAT_RECT;
2668 int stx = x / VNC_STAT_RECT;
2669 int has_dirty = 0;
2670
2671 y = y / VNC_STAT_RECT * VNC_STAT_RECT;
2672 x = x / VNC_STAT_RECT * VNC_STAT_RECT;
2673
2674 QTAILQ_FOREACH(vs, &vd->clients, next) {
bc2429b9 2675 int j;
7d964c9d
CC		 2676
2677 /* kernel send buffers are full -> refresh later */
2678 if (vs->output.offset) {
2679 continue;
2680 }
2681
2682 if (!vs->lossy_rect[sty][stx]) {
2683 continue;
2684 }
207f328a 2685
7d964c9d
CC		 2686 vs->lossy_rect[sty][stx] = 0;
2687 for (j = 0; j < VNC_STAT_RECT; ++j) {
b4c85ddc
PL		 2688 bitmap_set(vs->dirty[y + j],
2689 x / VNC_DIRTY_PIXELS_PER_BIT,
2690 VNC_STAT_RECT / VNC_DIRTY_PIXELS_PER_BIT);
7d964c9d
CC		 2691 }
2692 has_dirty++;
2693 }
207f328a 2694
7d964c9d
CC		 2695 return has_dirty;
2696}
2697
2698static int vnc_update_stats(VncDisplay *vd, struct timeval * tv)
999342a0 2699{
9f64916d
GH		 2700 int width = pixman_image_get_width(vd->guest.fb);
2701 int height = pixman_image_get_height(vd->guest.fb);
999342a0
CC		 2702 int x, y;
2703 struct timeval res;
7d964c9d 2704 int has_dirty = 0;
999342a0 2705
9f64916d
GH		 2706 for (y = 0; y < height; y += VNC_STAT_RECT) {
2707 for (x = 0; x < width; x += VNC_STAT_RECT) {
999342a0
CC		 2708 VncRectStat *rect = vnc_stat_rect(vd, x, y);
2709
2710 rect->updated = false;
2711 }
2712 }
2713
ad620c29 2714 qemu_timersub(tv, &VNC_REFRESH_STATS, &res);
999342a0
CC		 2715
2716 if (timercmp(&vd->guest.last_freq_check, &res, >)) {
7d964c9d 2717 return has_dirty;
999342a0
CC		 2718 }
2719 vd->guest.last_freq_check = *tv;
2720
9f64916d
GH		 2721 for (y = 0; y < height; y += VNC_STAT_RECT) {
2722 for (x = 0; x < width; x += VNC_STAT_RECT) {
999342a0
CC		 2723 VncRectStat *rect= vnc_stat_rect(vd, x, y);
2724 int count = ARRAY_SIZE(rect->times);
2725 struct timeval min, max;
2726
2727 if (!timerisset(&rect->times[count - 1])) {
2728 continue ;
2729 }
2730
2731 max = rect->times[(rect->idx + count - 1) % count];
ad620c29 2732 qemu_timersub(tv, &max, &res);
999342a0
CC		 2733
2734 if (timercmp(&res, &VNC_REFRESH_LOSSY, >)) {
2735 rect->freq = 0;
7d964c9d 2736 has_dirty += vnc_refresh_lossy_rect(vd, x, y);
999342a0
CC		 2737 memset(rect->times, 0, sizeof (rect->times));
2738 continue ;
2739 }
2740
2741 min = rect->times[rect->idx];
2742 max = rect->times[(rect->idx + count - 1) % count];
ad620c29 2743 qemu_timersub(&max, &min, &res);
999342a0
CC		 2744
2745 rect->freq = res.tv_sec + res.tv_usec / 1000000.;
2746 rect->freq /= count;
2747 rect->freq = 1. / rect->freq;
2748 }
2749 }
7d964c9d 2750 return has_dirty;
999342a0
CC		 2751}
2752
2753double vnc_update_freq(VncState *vs, int x, int y, int w, int h)
2754{
2755 int i, j;
2756 double total = 0;
2757 int num = 0;
2758
2759 x = (x / VNC_STAT_RECT) * VNC_STAT_RECT;
2760 y = (y / VNC_STAT_RECT) * VNC_STAT_RECT;
2761
2762 for (j = y; j <= y + h; j += VNC_STAT_RECT) {
2763 for (i = x; i <= x + w; i += VNC_STAT_RECT) {
2764 total += vnc_stat_rect(vs->vd, i, j)->freq;
2765 num++;
2766 }
2767 }
2768
2769 if (num) {
2770 return total / num;
2771 } else {
2772 return 0;
2773 }
2774}
2775
2776static void vnc_rect_updated(VncDisplay *vd, int x, int y, struct timeval * tv)
2777{
2778 VncRectStat *rect;
2779
2780 rect = vnc_stat_rect(vd, x, y);
2781 if (rect->updated) {
2782 return ;
2783 }
2784 rect->times[rect->idx] = *tv;
2785 rect->idx = (rect->idx + 1) % ARRAY_SIZE(rect->times);
2786 rect->updated = true;
2787}
2788
1fc62412
SS		 2789static int vnc_refresh_server_surface(VncDisplay *vd)
2790{
bea60dd7
PL		 2791 int width = MIN(pixman_image_get_width(vd->guest.fb),
2792 pixman_image_get_width(vd->server));
2793 int height = MIN(pixman_image_get_height(vd->guest.fb),
2794 pixman_image_get_height(vd->server));
eb8934b0 2795 int cmp_bytes, server_stride, line_bytes, guest_ll, guest_stride, y = 0;
12b316d4 2796 uint8_t *guest_row0 = NULL, *server_row0;
41b4bef6 2797 VncState *vs;
1fc62412 2798 int has_dirty = 0;
9f64916d 2799 pixman_image_t *tmpbuf = NULL;
1fc62412 2800
80e0c8c3 2801 struct timeval tv = { 0, 0 };
999342a0 2802
80e0c8c3
CC		 2803 if (!vd->non_adaptive) {
2804 gettimeofday(&tv, NULL);
2805 has_dirty = vnc_update_stats(vd, &tv);
2806 }
999342a0 2807
1fc62412
SS		 2808 /*
2809 * Walk through the guest dirty map.
2810 * Check and copy modified bits from guest to server surface.
2811 * Update server dirty map.
2812 */
bea60dd7 2813 server_row0 = (uint8_t *)pixman_image_get_data(vd->server);
eb8934b0
GH		 2814 server_stride = guest_stride = guest_ll =
2815 pixman_image_get_stride(vd->server);
bea60dd7
PL		 2816 cmp_bytes = MIN(VNC_DIRTY_PIXELS_PER_BIT * VNC_SERVER_FB_BYTES,
2817 server_stride);
9f64916d
GH		 2818 if (vd->guest.format != VNC_SERVER_FB_FORMAT) {
2819 int width = pixman_image_get_width(vd->server);
2820 tmpbuf = qemu_pixman_linebuf_create(VNC_SERVER_FB_FORMAT, width);
12b316d4 2821 } else {
eb8934b0
GH		 2822 int guest_bpp =
2823 PIXMAN_FORMAT_BPP(pixman_image_get_format(vd->guest.fb));
12b316d4
PL		 2824 guest_row0 = (uint8_t *)pixman_image_get_data(vd->guest.fb);
2825 guest_stride = pixman_image_get_stride(vd->guest.fb);
eb8934b0 2826 guest_ll = pixman_image_get_width(vd->guest.fb) * ((guest_bpp + 7) / 8);
12b316d4 2827 }
eb8934b0 2828 line_bytes = MIN(server_stride, guest_ll);
12b316d4 2829
12b316d4
PL		 2830 for (;;) {
2831 int x;
2832 uint8_t *guest_ptr, *server_ptr;
2833 unsigned long offset = find_next_bit((unsigned long *) &vd->guest.dirty,
2834 height * VNC_DIRTY_BPL(&vd->guest),
2835 y * VNC_DIRTY_BPL(&vd->guest));
2836 if (offset == height * VNC_DIRTY_BPL(&vd->guest)) {
2837 /* no more dirty bits */
2838 break;
2839 }
2840 y = offset / VNC_DIRTY_BPL(&vd->guest);
2841 x = offset % VNC_DIRTY_BPL(&vd->guest);
1fc62412 2842
12b316d4
PL		 2843 server_ptr = server_row0 + y * server_stride + x * cmp_bytes;
2844
2845 if (vd->guest.format != VNC_SERVER_FB_FORMAT) {
2846 qemu_pixman_linebuf_fill(tmpbuf, vd->guest.fb, width, 0, y);
2847 guest_ptr = (uint8_t *)pixman_image_get_data(tmpbuf);
2848 } else {
2849 guest_ptr = guest_row0 + y * guest_stride;
2850 }
2851 guest_ptr += x * cmp_bytes;
2852
2853 for (; x < DIV_ROUND_UP(width, VNC_DIRTY_PIXELS_PER_BIT);
2854 x++, guest_ptr += cmp_bytes, server_ptr += cmp_bytes) {
bea60dd7 2855 int _cmp_bytes = cmp_bytes;
12b316d4
PL		 2856 if (!test_and_clear_bit(x, vd->guest.dirty[y])) {
2857 continue;
2858 }
eb8934b0
GH		 2859 if ((x + 1) * cmp_bytes > line_bytes) {
2860 _cmp_bytes = line_bytes - x * cmp_bytes;
bea60dd7 2861 }
eb8934b0 2862 assert(_cmp_bytes >= 0);
bea60dd7 2863 if (memcmp(server_ptr, guest_ptr, _cmp_bytes) == 0) {
12b316d4
PL		 2864 continue;
2865 }
bea60dd7 2866 memcpy(server_ptr, guest_ptr, _cmp_bytes);
12b316d4
PL		 2867 if (!vd->non_adaptive) {
2868 vnc_rect_updated(vd, x * VNC_DIRTY_PIXELS_PER_BIT,
2869 y, &tv);
1fc62412 2870 }
12b316d4
PL		 2871 QTAILQ_FOREACH(vs, &vd->clients, next) {
2872 set_bit(x, vs->dirty[y]);
2873 }
2874 has_dirty++;
1fc62412 2875 }
12b316d4
PL		 2876
2877 y++;
1fc62412 2878 }
9f64916d 2879 qemu_pixman_image_unref(tmpbuf);
1fc62412
SS		 2880 return has_dirty;
2881}
2882
0f7b2864 2883static void vnc_refresh(DisplayChangeListener *dcl)
703bc68f 2884{
0f7b2864 2885 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
41b4bef6
AS		 2886 VncState *vs, *vn;
2887 int has_dirty, rects = 0;
703bc68f 2888
9d6b2070
C		 2889 if (QTAILQ_EMPTY(&vd->clients)) {
2890 update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_MAX);
2891 return;
2892 }
2893
1d0d59fe 2894 graphic_hw_update(vd->dcl.con);
703bc68f 2895
bd023f95 2896 if (vnc_trylock_display(vd)) {
0f7b2864 2897 update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
bd023f95
CC		 2898 return;
2899 }
2900
1fc62412 2901 has_dirty = vnc_refresh_server_surface(vd);
bd023f95 2902 vnc_unlock_display(vd);
1fc62412 2903
41b4bef6 2904 QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) {
38ee14f4 2905 rects += vnc_update_client(vs, has_dirty, false);
6185c578 2906 /* vs might be free()ed here */
703bc68f 2907 }
bd023f95 2908
2430ffe4 2909 if (has_dirty && rects) {
0f7b2864
GH		 2910 vd->dcl.update_interval /= 2;
2911 if (vd->dcl.update_interval < VNC_REFRESH_INTERVAL_BASE) {
2912 vd->dcl.update_interval = VNC_REFRESH_INTERVAL_BASE;
2913 }
2430ffe4 2914 } else {
0f7b2864
GH		 2915 vd->dcl.update_interval += VNC_REFRESH_INTERVAL_INC;
2916 if (vd->dcl.update_interval > VNC_REFRESH_INTERVAL_MAX) {
2917 vd->dcl.update_interval = VNC_REFRESH_INTERVAL_MAX;
2918 }
703bc68f
SS		 2919 }
2920}
2921
04d2529d 2922static void vnc_connect(VncDisplay *vd, QIOChannelSocket *sioc,
2c8cf549 2923 bool skipauth, bool websocket)
3aa3eea3 2924{
fedf0d35 2925 VncState *vs = g_new0(VncState, 1);
7d964c9d
CC		 2926 int i;
2927
04d2529d
DB		 2928 vs->sioc = sioc;
2929 object_ref(OBJECT(vs->sioc));
2930 vs->ioc = QIO_CHANNEL(sioc);
2931 object_ref(OBJECT(vs->ioc));
d616ccc5 2932 vs->vd = vd;
7e7e2ebc 2933
04d2529d
DB		 2934 buffer_init(&vs->input, "vnc-input/%p", sioc);
2935 buffer_init(&vs->output, "vnc-output/%p", sioc);
04d2529d 2936 buffer_init(&vs->jobs_buffer, "vnc-jobs_buffer/%p", sioc);
543b9580 2937
04d2529d
DB		 2938 buffer_init(&vs->tight.tight, "vnc-tight/%p", sioc);
2939 buffer_init(&vs->tight.zlib, "vnc-tight-zlib/%p", sioc);
2940 buffer_init(&vs->tight.gradient, "vnc-tight-gradient/%p", sioc);
543b9580 2941#ifdef CONFIG_VNC_JPEG
04d2529d 2942 buffer_init(&vs->tight.jpeg, "vnc-tight-jpeg/%p", sioc);
543b9580
GH		 2943#endif
2944#ifdef CONFIG_VNC_PNG
04d2529d 2945 buffer_init(&vs->tight.png, "vnc-tight-png/%p", sioc);
543b9580 2946#endif
04d2529d
DB		 2947 buffer_init(&vs->zlib.zlib, "vnc-zlib/%p", sioc);
2948 buffer_init(&vs->zrle.zrle, "vnc-zrle/%p", sioc);
2949 buffer_init(&vs->zrle.fb, "vnc-zrle-fb/%p", sioc);
2950 buffer_init(&vs->zrle.zlib, "vnc-zrle-zlib/%p", sioc);
543b9580 2951
7e7e2ebc
DB		 2952 if (skipauth) {
2953 vs->auth = VNC_AUTH_NONE;
7e7e2ebc 2954 vs->subauth = VNC_AUTH_INVALID;
7e7e2ebc 2955 } else {
f9148c8a
DB		 2956 if (websocket) {
2957 vs->auth = vd->ws_auth;
2958 vs->subauth = VNC_AUTH_INVALID;
2959 } else {
2960 vs->auth = vd->auth;
2961 vs->subauth = vd->subauth;
2962 }
7e7e2ebc 2963 }
04d2529d
DB		 2964 VNC_DEBUG("Client sioc=%p ws=%d auth=%d subauth=%d\n",
2965 sioc, websocket, vs->auth, vs->subauth);
7e7e2ebc 2966
7267c094 2967 vs->lossy_rect = g_malloc0(VNC_STAT_ROWS * sizeof (*vs->lossy_rect));
7d964c9d 2968 for (i = 0; i < VNC_STAT_ROWS; ++i) {
fedf0d35 2969 vs->lossy_rect[i] = g_new0(uint8_t, VNC_STAT_COLS);
7d964c9d 2970 }
753b4053 2971
04d2529d 2972 VNC_DEBUG("New client on socket %p\n", vs->sioc);
0f7b2864 2973 update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
04d2529d 2974 qio_channel_set_blocking(vs->ioc, false, NULL);
7536ee4b
TH		 2975 if (websocket) {
2976 vs->websocket = 1;
f9148c8a 2977 if (vd->ws_tls) {
04d2529d
DB		 2978 vs->ioc_tag = qio_channel_add_watch(
2979 vs->ioc, G_IO_IN, vncws_tls_handshake_io, vs, NULL);
3e305e4a 2980 } else {
04d2529d
DB		 2981 vs->ioc_tag = qio_channel_add_watch(
2982 vs->ioc, G_IO_IN, vncws_handshake_io, vs, NULL);
0057a0d5 2983 }
04d2529d
DB		 2984 } else {
2985 vs->ioc_tag = qio_channel_add_watch(
2986 vs->ioc, G_IO_IN, vnc_client_io, vs, NULL);
7536ee4b 2987 }
753b4053 2988
4a80dba3 2989 vnc_client_cache_addr(vs);
fb6ba0d5 2990 vnc_qmp_event(vs, QAPI_EVENT_VNC_CONNECTED);
8cf36489 2991 vnc_set_share_mode(vs, VNC_SHARE_MODE_CONNECTING);
4a80dba3 2992
8e9b0d24 2993 if (!vs->websocket) {
7536ee4b
TH		 2994 vnc_init_state(vs);
2995 }
e5f34cdd
GH		 2996
2997 if (vd->num_connecting > vd->connections_limit) {
2998 QTAILQ_FOREACH(vs, &vd->clients, next) {
2999 if (vs->share_mode == VNC_SHARE_MODE_CONNECTING) {
3000 vnc_disconnect_start(vs);
3001 return;
3002 }
3003 }
3004 }
7536ee4b
TH		 3005}
3006
3007void vnc_init_state(VncState *vs)
3008{
6fd8e79a 3009 vs->initialized = true;
7536ee4b 3010 VncDisplay *vd = vs->vd;
c7628bff 3011 bool first_client = QTAILQ_EMPTY(&vd->clients);
7536ee4b 3012
753b4053
AL		 3013 vs->last_x = -1;
3014 vs->last_y = -1;
3015
3016 vs->as.freq = 44100;
3017 vs->as.nchannels = 2;
3018 vs->as.fmt = AUD_FMT_S16;
3019 vs->as.endianness = 0;
3020
bd023f95 3021 qemu_mutex_init(&vs->output_mutex);
175b2a6e 3022 vs->bh = qemu_bh_new(vnc_jobs_bh, vs);
bd023f95 3023
e5f34cdd 3024 QTAILQ_INSERT_TAIL(&vd->clients, vs, next);
c7628bff
GH		 3025 if (first_client) {
3026 vnc_update_server_surface(vd);
3027 }
1fc62412 3028
1d0d59fe 3029 graphic_hw_update(vd->dcl.con);
1fc62412 3030
3aa3eea3
AZ		 3031 vnc_write(vs, "RFB 003.008\n", 12);
3032 vnc_flush(vs);
3033 vnc_read_when(vs, protocol_version, 12);
53762ddb 3034 reset_keys(vs);
3a0558b5
GH		 3035 if (vs->vd->lock_key_sync)
3036 vs->led = qemu_add_led_event_handler(kbd_leds, vs);
753b4053 3037
37c34d9d
AL		 3038 vs->mouse_mode_notifier.notify = check_pointer_type_change;
3039 qemu_add_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
3040
198a0039 3041 /* vs might be free()ed here */
3aa3eea3
AZ		 3042}
3043
04d2529d
DB		 3044static gboolean vnc_listen_io(QIOChannel *ioc,
3045 GIOCondition condition,
3046 void *opaque)
24236869 3047{
753b4053 3048 VncDisplay *vs = opaque;
04d2529d
DB		 3049 QIOChannelSocket *sioc = NULL;
3050 Error *err = NULL;
24236869 3051
9f60ad50 3052 /* Catch-up */
1d0d59fe 3053 graphic_hw_update(vs->dcl.con);
04d2529d
DB		 3054 sioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(ioc), &err);
3055 if (sioc != NULL) {
3056 qio_channel_set_delay(QIO_CHANNEL(sioc), false);
3057 vnc_connect(vs, sioc, false,
3058 ioc != QIO_CHANNEL(vs->lsock));
3059 object_unref(OBJECT(sioc));
8e9b0d24 3060 } else {
04d2529d
DB		 3061 /* client probably closed connection before we got there */
3062 error_free(err);
24236869 3063 }
7536ee4b 3064
04d2529d 3065 return TRUE;
7536ee4b 3066}
7536ee4b 3067
7c20b4a3 3068static const DisplayChangeListenerOps dcl_ops = {
34da30af
BH		 3069 .dpy_name = "vnc",
3070 .dpy_refresh = vnc_refresh,
3071 .dpy_gfx_copy = vnc_dpy_copy,
3072 .dpy_gfx_update = vnc_dpy_update,
3073 .dpy_gfx_switch = vnc_dpy_switch,
3074 .dpy_gfx_check_format = qemu_pixman_check_format,
3075 .dpy_mouse_set = vnc_mouse_set,
3076 .dpy_cursor_define = vnc_dpy_cursor_define,
7c20b4a3
GH		 3077};
3078
14f7143e 3079void vnc_display_init(const char *id)
24236869 3080{
4db14629
GH		 3081 VncDisplay *vs;
3082
3083 if (vnc_display_find(id) != NULL) {
3084 return;
3085 }
3086 vs = g_malloc0(sizeof(*vs));
24236869 3087
14f7143e 3088 vs->id = strdup(id);
d616ccc5 3089 QTAILQ_INSERT_TAIL(&vnc_displays, vs, next);
24236869 3090
41b4bef6 3091 QTAILQ_INIT(&vs->clients);
3c9405a0 3092 vs->expires = TIME_MAX;
24236869 3093
40066175
GH		 3094 if (keyboard_layout) {
3095 trace_vnc_key_map_init(keyboard_layout);
0483755a 3096 vs->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
40066175 3097 } else {
0483755a 3098 vs->kbd_layout = init_keyboard_layout(name2keysym, "en-us");
40066175 3099 }
24236869 3100
24236869 3101 if (!vs->kbd_layout)
28a76be8 3102 exit(1);
24236869 3103
bd023f95
CC		 3104 qemu_mutex_init(&vs->mutex);
3105 vnc_start_worker_thread();
bd023f95 3106
21ef45d7 3107 vs->dcl.ops = &dcl_ops;
5209089f 3108 register_displaychangelistener(&vs->dcl);
71cab5ca
TS		 3109}
3110
6f43024c 3111
14f7143e 3112static void vnc_display_close(VncDisplay *vs)
71cab5ca 3113{
452b4d88
AL		 3114 if (!vs)
3115 return;
bf7aa45e
GH		 3116 vs->enabled = false;
3117 vs->is_unix = false;
04d2529d
DB		 3118 if (vs->lsock != NULL) {
3119 if (vs->lsock_tag) {
3120 g_source_remove(vs->lsock_tag);
3121 }
3122 object_unref(OBJECT(vs->lsock));
3123 vs->lsock = NULL;
71cab5ca 3124 }
bf7aa45e 3125 vs->ws_enabled = false;
04d2529d
DB		 3126 if (vs->lwebsock != NULL) {
3127 if (vs->lwebsock_tag) {
3128 g_source_remove(vs->lwebsock_tag);
3129 }
3130 object_unref(OBJECT(vs->lwebsock));
3131 vs->lwebsock = NULL;
7536ee4b 3132 }
70848515 3133 vs->auth = VNC_AUTH_INVALID;
8d5d2d4c 3134 vs->subauth = VNC_AUTH_INVALID;
3e305e4a
DB		 3135 if (vs->tlscreds) {
3136 object_unparent(OBJECT(vs->tlscreds));
67c4c2bd 3137 vs->tlscreds = NULL;
3e305e4a
DB		 3138 }
3139 g_free(vs->tlsaclname);
3140 vs->tlsaclname = NULL;
70848515
TS		 3141}
3142
14f7143e 3143int vnc_display_password(const char *id, const char *password)
70848515 3144{
14f7143e 3145 VncDisplay *vs = vnc_display_find(id);
70848515 3146
7ef92331 3147 if (!vs) {
a6aa9d3e 3148 return -EINVAL;
7ef92331 3149 }
cf864569
GH		 3150 if (vs->auth == VNC_AUTH_NONE) {
3151 error_printf_unless_qmp("If you want use passwords please enable "
3152 "password auth using '-vnc ${dpy},password'.");
3153 return -EINVAL;
1cd20f8b
AL		 3154 }
3155
64641d87 3156 g_free(vs->password);
c14e9847 3157 vs->password = g_strdup(password);
a6aa9d3e
LC		 3158
3159 return 0;
71cab5ca
TS		 3160}
3161
14f7143e 3162int vnc_display_pw_expire(const char *id, time_t expires)
3c9405a0 3163{
14f7143e 3164 VncDisplay *vs = vnc_display_find(id);
3c9405a0 3165
1643f2b2
GH		 3166 if (!vs) {
3167 return -EINVAL;
3168 }
3169
3c9405a0
GH		 3170 vs->expires = expires;
3171 return 0;
3172}
3173
14f7143e 3174char *vnc_display_local_addr(const char *id)
f92f8afe 3175{
14f7143e 3176 VncDisplay *vs = vnc_display_find(id);
04d2529d
DB		 3177 SocketAddress *addr;
3178 char *ret;
3179 Error *err = NULL;
d616ccc5 3180
9e0ff75e 3181 assert(vs);
04d2529d
DB		 3182
3183 addr = qio_channel_socket_get_local_address(vs->lsock, &err);
3184 if (!addr) {
3185 return NULL;
3186 }
3187
3188 if (addr->type != SOCKET_ADDRESS_KIND_INET) {
3189 qapi_free_SocketAddress(addr);
3190 return NULL;
3191 }
3192 ret = g_strdup_printf("%s;%s", addr->u.inet->host, addr->u.inet->port);
3193 qapi_free_SocketAddress(addr);
3194
3195 return ret;
f92f8afe
AL		 3196}
3197
4db14629
GH		 3198static QemuOptsList qemu_vnc_opts = {
3199 .name = "vnc",
3200 .head = QTAILQ_HEAD_INITIALIZER(qemu_vnc_opts.head),
3201 .implied_opt_name = "vnc",
3202 .desc = {
3203 {
3204 .name = "vnc",
3205 .type = QEMU_OPT_STRING,
3206 },{
3207 .name = "websocket",
3208 .type = QEMU_OPT_STRING,
3209 },{
3e305e4a
DB		 3210 .name = "tls-creds",
3211 .type = QEMU_OPT_STRING,
3212 },{
3213 /* Deprecated in favour of tls-creds */
4db14629
GH		 3214 .name = "x509",
3215 .type = QEMU_OPT_STRING,
3216 },{
3217 .name = "share",
3218 .type = QEMU_OPT_STRING,
1d0d59fe
GH		 3219 },{
3220 .name = "display",
3221 .type = QEMU_OPT_STRING,
3222 },{
3223 .name = "head",
3224 .type = QEMU_OPT_NUMBER,
e5f34cdd
GH		 3225 },{
3226 .name = "connections",
3227 .type = QEMU_OPT_NUMBER,
88428b7a
GA		 3228 },{
3229 .name = "to",
3230 .type = QEMU_OPT_NUMBER,
3231 },{
3232 .name = "ipv4",
3233 .type = QEMU_OPT_BOOL,
3234 },{
3235 .name = "ipv6",
3236 .type = QEMU_OPT_BOOL,
4db14629
GH		 3237 },{
3238 .name = "password",
3239 .type = QEMU_OPT_BOOL,
3240 },{
3241 .name = "reverse",
3242 .type = QEMU_OPT_BOOL,
3243 },{
3244 .name = "lock-key-sync",
3245 .type = QEMU_OPT_BOOL,
3246 },{
3247 .name = "sasl",
3248 .type = QEMU_OPT_BOOL,
3249 },{
3e305e4a 3250 /* Deprecated in favour of tls-creds */
4db14629
GH		 3251 .name = "tls",
3252 .type = QEMU_OPT_BOOL,
3253 },{
3e305e4a 3254 /* Deprecated in favour of tls-creds */
4db14629 3255 .name = "x509verify",
8c7d0645 3256 .type = QEMU_OPT_STRING,
4db14629
GH		 3257 },{
3258 .name = "acl",
3259 .type = QEMU_OPT_BOOL,
3260 },{
3261 .name = "lossy",
3262 .type = QEMU_OPT_BOOL,
3263 },{
3264 .name = "non-adaptive",
3265 .type = QEMU_OPT_BOOL,
3266 },
3267 { /* end of list */ }
3268 },
3269};
3270
0dd72e15 3271
3e305e4a 3272static int
0dd72e15
DB		 3273vnc_display_setup_auth(VncDisplay *vs,
3274 bool password,
3275 bool sasl,
3e305e4a
DB		 3276 bool websocket,
3277 Error **errp)
0dd72e15
DB		 3278{
3279 /*
3280 * We have a choice of 3 authentication options
3281 *
3282 * 1. none
3283 * 2. vnc
3284 * 3. sasl
3285 *
3286 * The channel can be run in 2 modes
3287 *
3288 * 1. clear
3289 * 2. tls
3290 *
3291 * And TLS can use 2 types of credentials
3292 *
3293 * 1. anon
3294 * 2. x509
3295 *
3296 * We thus have 9 possible logical combinations
3297 *
3298 * 1. clear + none
3299 * 2. clear + vnc
3300 * 3. clear + sasl
3301 * 4. tls + anon + none
3302 * 5. tls + anon + vnc
3303 * 6. tls + anon + sasl
3304 * 7. tls + x509 + none
3305 * 8. tls + x509 + vnc
3306 * 9. tls + x509 + sasl
3307 *
3308 * These need to be mapped into the VNC auth schemes
3309 * in an appropriate manner. In regular VNC, all the
3310 * TLS options get mapped into VNC_AUTH_VENCRYPT
3311 * sub-auth types.
f9148c8a
DB		 3312 *
3313 * In websockets, the https:// protocol already provides
3314 * TLS support, so there is no need to make use of the
3315 * VeNCrypt extension. Furthermore, websockets browser
3316 * clients could not use VeNCrypt even if they wanted to,
3317 * as they cannot control when the TLS handshake takes
3318 * place. Thus there is no option but to rely on https://,
3319 * meaning combinations 4->6 and 7->9 will be mapped to
3320 * VNC auth schemes in the same way as combos 1->3.
3321 *
3322 * Regardless of fact that we have a different mapping to
3323 * VNC auth mechs for plain VNC vs websockets VNC, the end
3324 * result has the same security characteristics.
0dd72e15
DB		 3325 */
3326 if (password) {
3e305e4a 3327 if (vs->tlscreds) {
0dd72e15 3328 vs->auth = VNC_AUTH_VENCRYPT;
f9148c8a
DB		 3329 if (websocket) {
3330 vs->ws_tls = true;
3331 }
3e305e4a
DB		 3332 if (object_dynamic_cast(OBJECT(vs->tlscreds),
3333 TYPE_QCRYPTO_TLS_CREDS_X509)) {
0dd72e15
DB		 3334 VNC_DEBUG("Initializing VNC server with x509 password auth\n");
3335 vs->subauth = VNC_AUTH_VENCRYPT_X509VNC;
3e305e4a
DB		 3336 } else if (object_dynamic_cast(OBJECT(vs->tlscreds),
3337 TYPE_QCRYPTO_TLS_CREDS_ANON)) {
0dd72e15
DB		 3338 VNC_DEBUG("Initializing VNC server with TLS password auth\n");
3339 vs->subauth = VNC_AUTH_VENCRYPT_TLSVNC;
3e305e4a
DB		 3340 } else {
3341 error_setg(errp,
3342 "Unsupported TLS cred type %s",
3343 object_get_typename(OBJECT(vs->tlscreds)));
3344 return -1;
0dd72e15
DB		 3345 }
3346 } else {
3347 VNC_DEBUG("Initializing VNC server with password auth\n");
3348 vs->auth = VNC_AUTH_VNC;
3349 vs->subauth = VNC_AUTH_INVALID;
3350 }
f9148c8a
DB		 3351 if (websocket) {
3352 vs->ws_auth = VNC_AUTH_VNC;
3353 } else {
3354 vs->ws_auth = VNC_AUTH_INVALID;
3355 }
0dd72e15 3356 } else if (sasl) {
3e305e4a 3357 if (vs->tlscreds) {
0dd72e15 3358 vs->auth = VNC_AUTH_VENCRYPT;
f9148c8a
DB		 3359 if (websocket) {
3360 vs->ws_tls = true;
3361 }
3e305e4a
DB		 3362 if (object_dynamic_cast(OBJECT(vs->tlscreds),
3363 TYPE_QCRYPTO_TLS_CREDS_X509)) {
0dd72e15
DB		 3364 VNC_DEBUG("Initializing VNC server with x509 SASL auth\n");
3365 vs->subauth = VNC_AUTH_VENCRYPT_X509SASL;
3e305e4a
DB		 3366 } else if (object_dynamic_cast(OBJECT(vs->tlscreds),
3367 TYPE_QCRYPTO_TLS_CREDS_ANON)) {
0dd72e15
DB		 3368 VNC_DEBUG("Initializing VNC server with TLS SASL auth\n");
3369 vs->subauth = VNC_AUTH_VENCRYPT_TLSSASL;
3e305e4a
DB		 3370 } else {
3371 error_setg(errp,
3372 "Unsupported TLS cred type %s",
3373 object_get_typename(OBJECT(vs->tlscreds)));
3374 return -1;
0dd72e15
DB		 3375 }
3376 } else {
3377 VNC_DEBUG("Initializing VNC server with SASL auth\n");
3378 vs->auth = VNC_AUTH_SASL;
3379 vs->subauth = VNC_AUTH_INVALID;
3380 }
f9148c8a
DB		 3381 if (websocket) {
3382 vs->ws_auth = VNC_AUTH_SASL;
3383 } else {
3384 vs->ws_auth = VNC_AUTH_INVALID;
3385 }
0dd72e15 3386 } else {
3e305e4a 3387 if (vs->tlscreds) {
0dd72e15 3388 vs->auth = VNC_AUTH_VENCRYPT;
f9148c8a
DB		 3389 if (websocket) {
3390 vs->ws_tls = true;
3391 }
3e305e4a
DB		 3392 if (object_dynamic_cast(OBJECT(vs->tlscreds),
3393 TYPE_QCRYPTO_TLS_CREDS_X509)) {
0dd72e15
DB		 3394 VNC_DEBUG("Initializing VNC server with x509 no auth\n");
3395 vs->subauth = VNC_AUTH_VENCRYPT_X509NONE;
3e305e4a
DB		 3396 } else if (object_dynamic_cast(OBJECT(vs->tlscreds),
3397 TYPE_QCRYPTO_TLS_CREDS_ANON)) {
0dd72e15
DB		 3398 VNC_DEBUG("Initializing VNC server with TLS no auth\n");
3399 vs->subauth = VNC_AUTH_VENCRYPT_TLSNONE;
3e305e4a
DB		 3400 } else {
3401 error_setg(errp,
3402 "Unsupported TLS cred type %s",
3403 object_get_typename(OBJECT(vs->tlscreds)));
3404 return -1;
0dd72e15
DB		 3405 }
3406 } else {
3407 VNC_DEBUG("Initializing VNC server with no auth\n");
3408 vs->auth = VNC_AUTH_NONE;
3409 vs->subauth = VNC_AUTH_INVALID;
3410 }
f9148c8a
DB		 3411 if (websocket) {
3412 vs->ws_auth = VNC_AUTH_NONE;
3413 } else {
3414 vs->ws_auth = VNC_AUTH_INVALID;
3415 }
0dd72e15 3416 }
3e305e4a
DB		 3417 return 0;
3418}
3419
3420
3421/*
3422 * Handle back compat with old CLI syntax by creating some
3423 * suitable QCryptoTLSCreds objects
3424 */
3425static QCryptoTLSCreds *
3426vnc_display_create_creds(bool x509,
3427 bool x509verify,
3428 const char *dir,
3429 const char *id,
3430 Error **errp)
3431{
3432 gchar *credsid = g_strdup_printf("tlsvnc%s", id);
3433 Object *parent = object_get_objects_root();
3434 Object *creds;
3435 Error *err = NULL;
3436
3437 if (x509) {
3438 creds = object_new_with_props(TYPE_QCRYPTO_TLS_CREDS_X509,
3439 parent,
3440 credsid,
3441 &err,
3442 "endpoint", "server",
3443 "dir", dir,
3444 "verify-peer", x509verify ? "yes" : "no",
3445 NULL);
3446 } else {
3447 creds = object_new_with_props(TYPE_QCRYPTO_TLS_CREDS_ANON,
3448 parent,
3449 credsid,
3450 &err,
3451 "endpoint", "server",
3452 NULL);
3453 }
3454
3455 g_free(credsid);
3456
3457 if (err) {
3458 error_propagate(errp, err);
3459 return NULL;
3460 }
3461
3462 return QCRYPTO_TLS_CREDS(creds);
0dd72e15
DB		 3463}
3464
3e305e4a 3465
4db14629 3466void vnc_display_open(const char *id, Error **errp)
71cab5ca 3467{
14f7143e 3468 VncDisplay *vs = vnc_display_find(id);
4db14629 3469 QemuOpts *opts = qemu_opts_find(&qemu_vnc_opts, id);
e0d03b8c 3470 SocketAddress *saddr = NULL, *wsaddr = NULL;
e2a11d9d 3471 const char *share, *device_id;
1d0d59fe 3472 QemuConsole *con;
a2c72de0
GA		 3473 bool password = false;
3474 bool reverse = false;
e2a11d9d 3475 const char *vnc;
e5560329 3476 char *h;
3e305e4a 3477 const char *credid;
a2c72de0 3478 bool sasl = false;
d169f04b 3479#ifdef CONFIG_VNC_SASL
2f9606b3
AL		 3480 int saslErr;
3481#endif
76655d6d 3482 int acl = 0;
3a0558b5 3483 int lock_key_sync = 1;
71cab5ca 3484
d616ccc5 3485 if (!vs) {
2d55f0e8
PB		 3486 error_setg(errp, "VNC display not active");
3487 return;
3488 }
14f7143e 3489 vnc_display_close(vs);
24236869 3490
4db14629
GH		 3491 if (!opts) {
3492 return;
3493 }
e2a11d9d
GA		 3494 vnc = qemu_opt_get(opts, "vnc");
3495 if (!vnc || strcmp(vnc, "none") == 0) {
4db14629
GH		 3496 return;
3497 }
e2a11d9d 3498
e5560329
GH		 3499 h = strrchr(vnc, ':');
3500 if (h) {
274c3b52
JT		 3501 size_t hlen = h - vnc;
3502
e0d03b8c
DB		 3503 const char *websocket = qemu_opt_get(opts, "websocket");
3504 int to = qemu_opt_get_number(opts, "to", 0);
3f0230e9
DB		 3505 bool has_ipv4 = qemu_opt_get(opts, "ipv4");
3506 bool has_ipv6 = qemu_opt_get(opts, "ipv6");
3507 bool ipv4 = qemu_opt_get_bool(opts, "ipv4", false);
3508 bool ipv6 = qemu_opt_get_bool(opts, "ipv6", false);
e0d03b8c
DB		 3509
3510 saddr = g_new0(SocketAddress, 1);
3511 if (websocket) {
3512 if (!qcrypto_hash_supports(QCRYPTO_HASH_ALG_SHA1)) {
3513 error_setg(errp,
3514 "SHA1 hash support is required for websockets");
3515 goto fail;
3516 }
3517
3518 wsaddr = g_new0(SocketAddress, 1);
3519 vs->ws_enabled = true;
3520 }
3521
3522 if (strncmp(vnc, "unix:", 5) == 0) {
2d32adda
EB		 3523 saddr->type = SOCKET_ADDRESS_KIND_UNIX;
3524 saddr->u.q_unix = g_new0(UnixSocketAddress, 1);
3525 saddr->u.q_unix->path = g_strdup(vnc + 5);
e0d03b8c
DB		 3526
3527 if (vs->ws_enabled) {
3528 error_setg(errp, "UNIX sockets not supported with websock");
3529 goto fail;
3530 }
274c3b52 3531 } else {
e0d03b8c 3532 unsigned long long baseport;
2d32adda
EB		 3533 saddr->type = SOCKET_ADDRESS_KIND_INET;
3534 saddr->u.inet = g_new0(InetSocketAddress, 1);
e0d03b8c 3535 if (vnc[0] == '[' && vnc[hlen - 1] == ']') {
2d32adda 3536 saddr->u.inet->host = g_strndup(vnc + 1, hlen - 2);
e0d03b8c 3537 } else {
2d32adda 3538 saddr->u.inet->host = g_strndup(vnc, hlen);
e0d03b8c
DB		 3539 }
3540 if (parse_uint_full(h + 1, &baseport, 10) < 0) {
3541 error_setg(errp, "can't convert to a number: %s", h + 1);
3542 goto fail;
3543 }
3544 if (baseport > 65535 ||
3545 baseport + 5900 > 65535) {
3546 error_setg(errp, "port %s out of range", h + 1);
3547 goto fail;
3548 }
2d32adda 3549 saddr->u.inet->port = g_strdup_printf(
e0d03b8c
DB		 3550 "%d", (int)baseport + 5900);
3551
3552 if (to) {
4d77b1f2
YH		 3553 saddr->u.inet->has_to = true;
3554 saddr->u.inet->to = to + 5900;
e0d03b8c 3555 }
3f0230e9
DB		 3556 saddr->u.inet->ipv4 = ipv4;
3557 saddr->u.inet->has_ipv4 = has_ipv4;
3558 saddr->u.inet->ipv6 = ipv6;
3559 saddr->u.inet->has_ipv6 = has_ipv6;
e0d03b8c
DB		 3560
3561 if (vs->ws_enabled) {
2d32adda
EB		 3562 wsaddr->type = SOCKET_ADDRESS_KIND_INET;
3563 wsaddr->u.inet = g_new0(InetSocketAddress, 1);
3564 wsaddr->u.inet->host = g_strdup(saddr->u.inet->host);
3565 wsaddr->u.inet->port = g_strdup(websocket);
e0d03b8c
DB		 3566
3567 if (to) {
2d32adda
EB		 3568 wsaddr->u.inet->has_to = true;
3569 wsaddr->u.inet->to = to;
e0d03b8c 3570 }
3f0230e9
DB		 3571 wsaddr->u.inet->ipv4 = ipv4;
3572 wsaddr->u.inet->has_ipv4 = has_ipv4;
3573 wsaddr->u.inet->ipv6 = ipv6;
3574 wsaddr->u.inet->has_ipv6 = has_ipv6;
e0d03b8c 3575 }
274c3b52 3576 }
e5560329
GH		 3577 } else {
3578 error_setg(errp, "no vnc port specified");
3579 goto fail;
e2a11d9d 3580 }
e5560329 3581
4db14629 3582 password = qemu_opt_get_bool(opts, "password", false);
800567a6
DB		 3583 if (password) {
3584 if (fips_get_state()) {
3585 error_setg(errp,
3586 "VNC password auth disabled due to FIPS mode, "
3587 "consider using the VeNCrypt or SASL authentication "
3588 "methods as an alternative");
3589 goto fail;
3590 }
3591 if (!qcrypto_cipher_supports(
3592 QCRYPTO_CIPHER_ALG_DES_RFB)) {
3593 error_setg(errp,
3594 "Cipher backend does not support DES RFB algorithm");
3595 goto fail;
3596 }
4db14629
GH		 3597 }
3598
3599 reverse = qemu_opt_get_bool(opts, "reverse", false);
3600 lock_key_sync = qemu_opt_get_bool(opts, "lock-key-sync", true);
4db14629 3601 sasl = qemu_opt_get_bool(opts, "sasl", false);
d169f04b
DB		 3602#ifndef CONFIG_VNC_SASL
3603 if (sasl) {
3604 error_setg(errp, "VNC SASL auth requires cyrus-sasl support");
3605 goto fail;
3606 }
3607#endif /* CONFIG_VNC_SASL */
3e305e4a
DB		 3608 credid = qemu_opt_get(opts, "tls-creds");
3609 if (credid) {
3610 Object *creds;
3611 if (qemu_opt_get(opts, "tls") ||
3612 qemu_opt_get(opts, "x509") ||
3613 qemu_opt_get(opts, "x509verify")) {
3614 error_setg(errp,
c62e90af 3615 "'tls-creds' parameter is mutually exclusive with "
3e305e4a 3616 "'tls', 'x509' and 'x509verify' parameters");
4db14629
GH		 3617 goto fail;
3618 }
3e305e4a
DB		 3619
3620 creds = object_resolve_path_component(
3621 object_get_objects_root(), credid);
3622 if (!creds) {
3623 error_setg(errp, "No TLS credentials with id '%s'",
3624 credid);
3625 goto fail;
3626 }
3627 vs->tlscreds = (QCryptoTLSCreds *)
3628 object_dynamic_cast(creds,
3629 TYPE_QCRYPTO_TLS_CREDS);
3630 if (!vs->tlscreds) {
3631 error_setg(errp, "Object with id '%s' is not TLS credentials",
3632 credid);
3633 goto fail;
3634 }
3635 object_ref(OBJECT(vs->tlscreds));
3636
3637 if (vs->tlscreds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
3638 error_setg(errp,
3639 "Expecting TLS credentials with a server endpoint");
3640 goto fail;
3641 }
3642 } else {
3643 const char *path;
3644 bool tls = false, x509 = false, x509verify = false;
3645 tls = qemu_opt_get_bool(opts, "tls", false);
3646 if (tls) {
3647 path = qemu_opt_get(opts, "x509");
3648
3649 if (path) {
3650 x509 = true;
3651 } else {
3652 path = qemu_opt_get(opts, "x509verify");
3653 if (path) {
3654 x509 = true;
3655 x509verify = true;
3656 }
3657 }
3658 vs->tlscreds = vnc_display_create_creds(x509,
3659 x509verify,
3660 path,
3661 vs->id,
3662 errp);
3663 if (!vs->tlscreds) {
3664 goto fail;
3665 }
3666 }
4db14629 3667 }
4db14629 3668 acl = qemu_opt_get_bool(opts, "acl", false);
4db14629
GH		 3669
3670 share = qemu_opt_get(opts, "share");
3671 if (share) {
3672 if (strcmp(share, "ignore") == 0) {
3673 vs->share_policy = VNC_SHARE_POLICY_IGNORE;
3674 } else if (strcmp(share, "allow-exclusive") == 0) {
3675 vs->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;
3676 } else if (strcmp(share, "force-shared") == 0) {
3677 vs->share_policy = VNC_SHARE_POLICY_FORCE_SHARED;
3678 } else {
3679 error_setg(errp, "unknown vnc share= option");
3680 goto fail;
3681 }
3682 } else {
3683 vs->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;
3684 }
e5f34cdd 3685 vs->connections_limit = qemu_opt_get_number(opts, "connections", 32);
4db14629 3686
4db14629
GH		 3687#ifdef CONFIG_VNC_JPEG
3688 vs->lossy = qemu_opt_get_bool(opts, "lossy", false);
3689#endif
3690 vs->non_adaptive = qemu_opt_get_bool(opts, "non-adaptive", false);
e22492d3
PL		 3691 /* adaptive updates are only used with tight encoding and
3692 * if lossy updates are enabled so we can disable all the
3693 * calculations otherwise */
3694 if (!vs->lossy) {
3695 vs->non_adaptive = true;
3696 }
3697
3e305e4a 3698 if (acl) {
c8496408 3699 if (strcmp(vs->id, "default") == 0) {
3e305e4a 3700 vs->tlsaclname = g_strdup("vnc.x509dname");
c8496408 3701 } else {
3e305e4a 3702 vs->tlsaclname = g_strdup_printf("vnc.%s.x509dname", vs->id);
c8496408 3703 }
3e305e4a 3704 qemu_acl_init(vs->tlsaclname);
2cc45228 3705 }
76655d6d
AL		 3706#ifdef CONFIG_VNC_SASL
3707 if (acl && sasl) {
c8496408
GH		 3708 char *aclname;
3709
3710 if (strcmp(vs->id, "default") == 0) {
3711 aclname = g_strdup("vnc.username");
3712 } else {
3713 aclname = g_strdup_printf("vnc.%s.username", vs->id);
3714 }
3715 vs->sasl.acl = qemu_acl_init(aclname);
c8496408 3716 g_free(aclname);
76655d6d
AL		 3717 }
3718#endif
3719
e0d03b8c 3720 if (vnc_display_setup_auth(vs, password, sasl, vs->ws_enabled, errp) < 0) {
3e305e4a
DB		 3721 goto fail;
3722 }
24236869 3723
2f9606b3
AL		 3724#ifdef CONFIG_VNC_SASL
3725 if ((saslErr = sasl_server_init(NULL, "qemu")) != SASL_OK) {
2d55f0e8
PB		 3726 error_setg(errp, "Failed to initialize SASL auth: %s",
3727 sasl_errstring(saslErr, NULL, NULL));
1ce52c78 3728 goto fail;
2f9606b3
AL		 3729 }
3730#endif
3a0558b5 3731 vs->lock_key_sync = lock_key_sync;
2f9606b3 3732
1d0d59fe
GH		 3733 device_id = qemu_opt_get(opts, "display");
3734 if (device_id) {
3735 DeviceState *dev;
3736 int head = qemu_opt_get_number(opts, "head", 0);
3737
3738 dev = qdev_find_recursive(sysbus_get_default(), device_id);
3739 if (dev == NULL) {
f3cf80e8 3740 error_setg(errp, "Device '%s' not found", device_id);
1d0d59fe
GH		 3741 goto fail;
3742 }
3743
3744 con = qemu_console_lookup_by_device(dev, head);
3745 if (con == NULL) {
3746 error_setg(errp, "Device %s is not bound to a QemuConsole",
3747 device_id);
3748 goto fail;
3749 }
3750 } else {
3751 con = NULL;
3752 }
3753
3754 if (con != vs->dcl.con) {
3755 unregister_displaychangelistener(&vs->dcl);
3756 vs->dcl.con = con;
3757 register_displaychangelistener(&vs->dcl);
3758 }
3759
3aa3eea3 3760 if (reverse) {
9712ecaf 3761 /* connect to viewer */
04d2529d
DB		 3762 QIOChannelSocket *sioc = NULL;
3763 vs->lsock = NULL;
3764 vs->lwebsock = NULL;
e0d03b8c
DB		 3765 if (vs->ws_enabled) {
3766 error_setg(errp, "Cannot use websockets in reverse mode");
3767 goto fail;
3aa3eea3 3768 }
04d2529d
DB		 3769 vs->is_unix = saddr->type == SOCKET_ADDRESS_KIND_UNIX;
3770 sioc = qio_channel_socket_new();
3771 if (qio_channel_socket_connect_sync(sioc, saddr, errp) < 0) {
007fcd3e
PB		 3772 goto fail;
3773 }
04d2529d
DB		 3774 vnc_connect(vs, sioc, false, false);
3775 object_unref(OBJECT(sioc));
9712ecaf 3776 } else {
04d2529d
DB		 3777 vs->lsock = qio_channel_socket_new();
3778 if (qio_channel_socket_listen_sync(vs->lsock, saddr, errp) < 0) {
e0d03b8c
DB		 3779 goto fail;
3780 }
2d32adda 3781 vs->is_unix = saddr->type == SOCKET_ADDRESS_KIND_UNIX;
04d2529d
DB		 3782 vs->enabled = true;
3783
e0d03b8c 3784 if (vs->ws_enabled) {
04d2529d
DB		 3785 vs->lwebsock = qio_channel_socket_new();
3786 if (qio_channel_socket_listen_sync(vs->lwebsock,
3787 wsaddr, errp) < 0) {
3788 object_unref(OBJECT(vs->lsock));
3789 vs->lsock = NULL;
e0d03b8c 3790 goto fail;
7536ee4b 3791 }
9712ecaf 3792 }
04d2529d
DB		 3793
3794 vs->lsock_tag = qio_channel_add_watch(
3795 QIO_CHANNEL(vs->lsock),
3796 G_IO_IN, vnc_listen_io, vs, NULL);
bf7aa45e 3797 if (vs->ws_enabled) {
04d2529d
DB		 3798 vs->lwebsock_tag = qio_channel_add_watch(
3799 QIO_CHANNEL(vs->lwebsock),
3800 G_IO_IN, vnc_listen_io, vs, NULL);
7536ee4b 3801 }
24236869 3802 }
e0d03b8c
DB		 3803
3804 qapi_free_SocketAddress(saddr);
3805 qapi_free_SocketAddress(wsaddr);
2d55f0e8 3806 return;
1ce52c78
PB		 3807
3808fail:
e0d03b8c
DB		 3809 qapi_free_SocketAddress(saddr);
3810 qapi_free_SocketAddress(wsaddr);
bf7aa45e 3811 vs->enabled = false;
bf7aa45e 3812 vs->ws_enabled = false;
24236869 3813}
13661089 3814
14f7143e 3815void vnc_display_add_client(const char *id, int csock, bool skipauth)
13661089 3816{
14f7143e 3817 VncDisplay *vs = vnc_display_find(id);
04d2529d 3818 QIOChannelSocket *sioc;
13661089 3819
d616ccc5
GH		 3820 if (!vs) {
3821 return;
3822 }
04d2529d
DB		 3823
3824 sioc = qio_channel_socket_new_fd(csock, NULL);
3825 if (sioc) {
3826 vnc_connect(vs, sioc, skipauth, false);
3827 object_unref(OBJECT(sioc));
3828 }
13661089 3829}
4db14629 3830
9634f4e3 3831static void vnc_auto_assign_id(QemuOptsList *olist, QemuOpts *opts)
2779672f
GA		 3832{
3833 int i = 2;
3834 char *id;
3835
3836 id = g_strdup("default");
3837 while (qemu_opts_find(olist, id)) {
3838 g_free(id);
3839 id = g_strdup_printf("vnc%d", i++);
3840 }
3841 qemu_opts_set_id(opts, id);
3842}
3843
70b94331 3844QemuOpts *vnc_parse(const char *str, Error **errp)
4db14629 3845{
4db14629 3846 QemuOptsList *olist = qemu_find_opts("vnc");
70b94331 3847 QemuOpts *opts = qemu_opts_parse(olist, str, true, errp);
81607cbf 3848 const char *id;
4db14629 3849
81607cbf
GA		 3850 if (!opts) {
3851 return NULL;
3852 }
3853
3854 id = qemu_opts_id(opts);
4db14629
GH		 3855 if (!id) {
3856 /* auto-assign id if not present */
2779672f 3857 vnc_auto_assign_id(olist, opts);
4db14629 3858 }
9634f4e3
GH		 3859 return opts;
3860}
3861
28d0de7a 3862int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp)
9634f4e3
GH		 3863{
3864 Error *local_err = NULL;
3865 char *id = (char *)qemu_opts_id(opts);
4db14629 3866
9634f4e3 3867 assert(id);
4db14629
GH		 3868 vnc_display_init(id);
3869 vnc_display_open(id, &local_err);
3870 if (local_err != NULL) {
c29b77f9 3871 error_reportf_err(local_err, "Failed to start VNC server: ");
4db14629
GH		 3872 exit(1);
3873 }
3874 return 0;
3875}
3876
3877static void vnc_register_config(void)
3878{
3879 qemu_add_opts(&qemu_vnc_opts);
3880}
3881machine_init(vnc_register_config);
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