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[mirror_qemu.git] / ui / vnc.c
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7d510b8c
FB		 1/*
2 * QEMU VNC display driver
5fafdf24 3 *
7d510b8c
FB		 4 * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
5 * Copyright (C) 2006 Fabrice Bellard
19a490bf 6 * Copyright (C) 2009 Red Hat, Inc
5fafdf24 7 *
7d510b8c
FB		 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 */
26
19a490bf 27#include "vnc.h"
bd023f95 28#include "vnc-jobs.h"
87ecb68b 29#include "sysemu.h"
6ca957f0 30#include "qemu_socket.h"
87ecb68b 31#include "qemu-timer.h"
76655d6d 32#include "acl.h"
d96fd29c 33#include "qemu-objects.h"
2b54aa87 34#include "qmp-commands.h"
24236869 35
2430ffe4
SS		 36#define VNC_REFRESH_INTERVAL_BASE 30
37#define VNC_REFRESH_INTERVAL_INC 50
38#define VNC_REFRESH_INTERVAL_MAX 2000
999342a0
CC		 39static const struct timeval VNC_REFRESH_STATS = { 0, 500000 };
40static const struct timeval VNC_REFRESH_LOSSY = { 2, 0 };
24236869
FB		 41
42#include "vnc_keysym.h"
70848515
TS		 43#include "d3des.h"
44
753b4053 45static VncDisplay *vnc_display; /* needed for info vnc */
7d957bd8 46static DisplayChangeListener *dcl;
a9ce8590 47
d467b679
GH		 48static int vnc_cursor_define(VncState *vs);
49
1ff7df1a
AL		 50static char *addr_to_string(const char *format,
51 struct sockaddr_storage *sa,
52 socklen_t salen) {
53 char *addr;
54 char host[NI_MAXHOST];
55 char serv[NI_MAXSERV];
56 int err;
457772e6 57 size_t addrlen;
1ff7df1a
AL		 58
59 if ((err = getnameinfo((struct sockaddr *)sa, salen,
60 host, sizeof(host),
61 serv, sizeof(serv),
62 NI_NUMERICHOST | NI_NUMERICSERV)) != 0) {
63 VNC_DEBUG("Cannot resolve address %d: %s\n",
64 err, gai_strerror(err));
65 return NULL;
66 }
67
457772e6 68 /* Enough for the existing format + the 2 vars we're
f425c278 69 * substituting in. */
457772e6 70 addrlen = strlen(format) + strlen(host) + strlen(serv);
7267c094 71 addr = g_malloc(addrlen + 1);
457772e6
AL		 72 snprintf(addr, addrlen, format, host, serv);
73 addr[addrlen] = '\0';
1ff7df1a
AL		 74
75 return addr;
76}
77
2f9606b3
AL		 78
79char *vnc_socket_local_addr(const char *format, int fd) {
1ff7df1a
AL		 80 struct sockaddr_storage sa;
81 socklen_t salen;
82
83 salen = sizeof(sa);
84 if (getsockname(fd, (struct sockaddr*)&sa, &salen) < 0)
85 return NULL;
86
87 return addr_to_string(format, &sa, salen);
88}
89
2f9606b3 90char *vnc_socket_remote_addr(const char *format, int fd) {
1ff7df1a
AL		 91 struct sockaddr_storage sa;
92 socklen_t salen;
93
94 salen = sizeof(sa);
95 if (getpeername(fd, (struct sockaddr*)&sa, &salen) < 0)
96 return NULL;
97
98 return addr_to_string(format, &sa, salen);
99}
100
d96fd29c
LC		 101static int put_addr_qdict(QDict *qdict, struct sockaddr_storage *sa,
102 socklen_t salen)
103{
104 char host[NI_MAXHOST];
105 char serv[NI_MAXSERV];
106 int err;
107
108 if ((err = getnameinfo((struct sockaddr *)sa, salen,
109 host, sizeof(host),
110 serv, sizeof(serv),
111 NI_NUMERICHOST | NI_NUMERICSERV)) != 0) {
112 VNC_DEBUG("Cannot resolve address %d: %s\n",
113 err, gai_strerror(err));
114 return -1;
115 }
116
117 qdict_put(qdict, "host", qstring_from_str(host));
118 qdict_put(qdict, "service", qstring_from_str(serv));
dc0d4efc 119 qdict_put(qdict, "family",qstring_from_str(inet_strfamily(sa->ss_family)));
d96fd29c
LC		 120
121 return 0;
122}
123
a7789382 124static int vnc_server_addr_put(QDict *qdict, int fd)
d96fd29c
LC		 125{
126 struct sockaddr_storage sa;
127 socklen_t salen;
128
129 salen = sizeof(sa);
130 if (getsockname(fd, (struct sockaddr*)&sa, &salen) < 0) {
131 return -1;
132 }
133
134 return put_addr_qdict(qdict, &sa, salen);
135}
136
137static int vnc_qdict_remote_addr(QDict *qdict, int fd)
138{
139 struct sockaddr_storage sa;
140 socklen_t salen;
141
142 salen = sizeof(sa);
143 if (getpeername(fd, (struct sockaddr*)&sa, &salen) < 0) {
144 return -1;
145 }
146
147 return put_addr_qdict(qdict, &sa, salen);
148}
149
1ff7df1a
AL		 150static const char *vnc_auth_name(VncDisplay *vd) {
151 switch (vd->auth) {
152 case VNC_AUTH_INVALID:
153 return "invalid";
154 case VNC_AUTH_NONE:
155 return "none";
156 case VNC_AUTH_VNC:
157 return "vnc";
158 case VNC_AUTH_RA2:
159 return "ra2";
160 case VNC_AUTH_RA2NE:
161 return "ra2ne";
162 case VNC_AUTH_TIGHT:
163 return "tight";
164 case VNC_AUTH_ULTRA:
165 return "ultra";
166 case VNC_AUTH_TLS:
167 return "tls";
168 case VNC_AUTH_VENCRYPT:
169#ifdef CONFIG_VNC_TLS
170 switch (vd->subauth) {
171 case VNC_AUTH_VENCRYPT_PLAIN:
172 return "vencrypt+plain";
173 case VNC_AUTH_VENCRYPT_TLSNONE:
174 return "vencrypt+tls+none";
175 case VNC_AUTH_VENCRYPT_TLSVNC:
176 return "vencrypt+tls+vnc";
177 case VNC_AUTH_VENCRYPT_TLSPLAIN:
178 return "vencrypt+tls+plain";
179 case VNC_AUTH_VENCRYPT_X509NONE:
180 return "vencrypt+x509+none";
181 case VNC_AUTH_VENCRYPT_X509VNC:
182 return "vencrypt+x509+vnc";
183 case VNC_AUTH_VENCRYPT_X509PLAIN:
184 return "vencrypt+x509+plain";
28a76be8
AL		 185 case VNC_AUTH_VENCRYPT_TLSSASL:
186 return "vencrypt+tls+sasl";
187 case VNC_AUTH_VENCRYPT_X509SASL:
188 return "vencrypt+x509+sasl";
1ff7df1a
AL		 189 default:
190 return "vencrypt";
191 }
192#else
193 return "vencrypt";
194#endif
2f9606b3 195 case VNC_AUTH_SASL:
28a76be8 196 return "sasl";
1ff7df1a
AL		 197 }
198 return "unknown";
199}
200
a7789382
LC		 201static int vnc_server_info_put(QDict *qdict)
202{
203 if (vnc_server_addr_put(qdict, vnc_display->lsock) < 0) {
204 return -1;
205 }
206
207 qdict_put(qdict, "auth", qstring_from_str(vnc_auth_name(vnc_display)));
208 return 0;
209}
210
4a80dba3 211static void vnc_client_cache_auth(VncState *client)
1ff7df1a 212{
2ded6ad7 213#if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL)
d96fd29c 214 QDict *qdict;
2ded6ad7 215#endif
1ff7df1a 216
4a80dba3
LC		 217 if (!client->info) {
218 return;
d96fd29c 219 }
1263b7d6 220
2ded6ad7 221#if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL)
4a80dba3 222 qdict = qobject_to_qdict(client->info);
2ded6ad7 223#endif
4a80dba3 224
1263b7d6
AL		 225#ifdef CONFIG_VNC_TLS
226 if (client->tls.session &&
d96fd29c
LC		 227 client->tls.dname) {
228 qdict_put(qdict, "x509_dname", qstring_from_str(client->tls.dname));
229 }
1263b7d6
AL		 230#endif
231#ifdef CONFIG_VNC_SASL
232 if (client->sasl.conn &&
d96fd29c 233 client->sasl.username) {
76825067
LC		 234 qdict_put(qdict, "sasl_username",
235 qstring_from_str(client->sasl.username));
d96fd29c 236 }
1263b7d6 237#endif
4a80dba3 238}
d96fd29c 239
4a80dba3
LC		 240static void vnc_client_cache_addr(VncState *client)
241{
242 QDict *qdict;
243
244 qdict = qdict_new();
245 if (vnc_qdict_remote_addr(qdict, client->csock) < 0) {
246 QDECREF(qdict);
247 /* XXX: how to report the error? */
248 return;
249 }
250
251 client->info = QOBJECT(qdict);
1ff7df1a
AL		 252}
253
586153d9
LC		 254static void vnc_qmp_event(VncState *vs, MonitorEvent event)
255{
256 QDict *server;
257 QObject *data;
258
259 if (!vs->info) {
260 return;
261 }
262
263 server = qdict_new();
264 if (vnc_server_info_put(server) < 0) {
265 QDECREF(server);
266 return;
267 }
268
269 data = qobject_from_jsonf("{ 'client': %p, 'server': %p }",
270 vs->info, QOBJECT(server));
271
272 monitor_protocol_event(event, data);
273
274 qobject_incref(vs->info);
275 qobject_decref(data);
276}
277
2b54aa87 278static VncClientInfo *qmp_query_vnc_client(const VncState *client)
a9ce8590 279{
2b54aa87
LC		 280 struct sockaddr_storage sa;
281 socklen_t salen = sizeof(sa);
282 char host[NI_MAXHOST];
283 char serv[NI_MAXSERV];
284 VncClientInfo *info;
285
286 if (getpeername(client->csock, (struct sockaddr *)&sa, &salen) < 0) {
287 return NULL;
288 }
289
290 if (getnameinfo((struct sockaddr *)&sa, salen,
291 host, sizeof(host),
292 serv, sizeof(serv),
293 NI_NUMERICHOST | NI_NUMERICSERV) < 0) {
294 return NULL;
295 }
d96fd29c 296
2b54aa87
LC		 297 info = g_malloc0(sizeof(*info));
298 info->host = g_strdup(host);
299 info->service = g_strdup(serv);
300 info->family = g_strdup(inet_strfamily(sa.ss_family));
d96fd29c
LC		 301
302#ifdef CONFIG_VNC_TLS
2b54aa87
LC		 303 if (client->tls.session && client->tls.dname) {
304 info->has_x509_dname = true;
305 info->x509_dname = g_strdup(client->tls.dname);
306 }
d96fd29c
LC		 307#endif
308#ifdef CONFIG_VNC_SASL
2b54aa87
LC		 309 if (client->sasl.conn && client->sasl.username) {
310 info->has_sasl_username = true;
311 info->sasl_username = g_strdup(client->sasl.username);
d96fd29c 312 }
2b54aa87 313#endif
1ff7df1a 314
2b54aa87 315 return info;
d96fd29c 316}
1ff7df1a 317
2b54aa87 318VncInfo *qmp_query_vnc(Error **errp)
d96fd29c 319{
2b54aa87
LC		 320 VncInfo *info = g_malloc0(sizeof(*info));
321
d96fd29c 322 if (vnc_display == NULL || vnc_display->display == NULL) {
2b54aa87 323 info->enabled = false;
d96fd29c 324 } else {
2b54aa87
LC		 325 VncClientInfoList *cur_item = NULL;
326 struct sockaddr_storage sa;
327 socklen_t salen = sizeof(sa);
328 char host[NI_MAXHOST];
329 char serv[NI_MAXSERV];
41b4bef6 330 VncState *client;
1ff7df1a 331
2b54aa87
LC		 332 info->enabled = true;
333
334 /* for compatibility with the original command */
335 info->has_clients = true;
336
41b4bef6 337 QTAILQ_FOREACH(client, &vnc_display->clients, next) {
2b54aa87
LC		 338 VncClientInfoList *cinfo = g_malloc0(sizeof(*info));
339 cinfo->value = qmp_query_vnc_client(client);
340
341 /* XXX: waiting for the qapi to support GSList */
342 if (!cur_item) {
343 info->clients = cur_item = cinfo;
344 } else {
345 cur_item->next = cinfo;
346 cur_item = cinfo;
1ff7df1a 347 }
d96fd29c
LC		 348 }
349
2b54aa87
LC		 350 if (getsockname(vnc_display->lsock, (struct sockaddr *)&sa,
351 &salen) == -1) {
352 error_set(errp, QERR_UNDEFINED_ERROR);
353 goto out_error;
354 }
d96fd29c 355
2b54aa87
LC		 356 if (getnameinfo((struct sockaddr *)&sa, salen,
357 host, sizeof(host),
358 serv, sizeof(serv),
359 NI_NUMERICHOST | NI_NUMERICSERV) < 0) {
360 error_set(errp, QERR_UNDEFINED_ERROR);
361 goto out_error;
1ff7df1a 362 }
2b54aa87
LC		 363
364 info->has_host = true;
365 info->host = g_strdup(host);
366
367 info->has_service = true;
368 info->service = g_strdup(serv);
369
370 info->has_family = true;
371 info->family = g_strdup(inet_strfamily(sa.ss_family));
372
373 info->has_auth = true;
374 info->auth = g_strdup(vnc_auth_name(vnc_display));
a9ce8590 375 }
2b54aa87
LC		 376
377 return info;
378
379out_error:
380 qapi_free_VncInfo(info);
381 return NULL;
a9ce8590
FB		 382}
383
24236869
FB		 384/* TODO
385 1) Get the queue working for IO.
386 2) there is some weirdness when using the -S option (the screen is grey
387 and not totally invalidated
388 3) resolutions > 1024
389*/
390
2430ffe4 391static int vnc_update_client(VncState *vs, int has_dirty);
bd023f95 392static int vnc_update_client_sync(VncState *vs, int has_dirty);
198a0039
GH		 393static void vnc_disconnect_start(VncState *vs);
394static void vnc_disconnect_finish(VncState *vs);
703bc68f
SS		 395static void vnc_init_timer(VncDisplay *vd);
396static void vnc_remove_timer(VncDisplay *vd);
24236869 397
753b4053 398static void vnc_colordepth(VncState *vs);
1fc62412
SS		 399static void framebuffer_update_request(VncState *vs, int incremental,
400 int x_position, int y_position,
401 int w, int h);
402static void vnc_refresh(void *opaque);
403static int vnc_refresh_server_surface(VncDisplay *vd);
7eac3a87 404
1fc62412 405static void vnc_dpy_update(DisplayState *ds, int x, int y, int w, int h)
24236869 406{
24236869 407 int i;
1fc62412
SS		 408 VncDisplay *vd = ds->opaque;
409 struct VncSurface *s = &vd->guest;
24236869
FB		 410
411 h += y;
412
0486e8a7
AZ		 413 /* round x down to ensure the loop only spans one 16-pixel block per,
414 iteration. otherwise, if (x % 16) != 0, the last iteration may span
415 two 16-pixel blocks but we only mark the first as dirty
416 */
417 w += (x % 16);
418 x -= (x % 16);
419
6baebed7
AL		 420 x = MIN(x, s->ds->width);
421 y = MIN(y, s->ds->height);
422 w = MIN(x + w, s->ds->width) - x;
423 h = MIN(h, s->ds->height);
788abf8e 424
24236869 425 for (; y < h; y++)
28a76be8 426 for (i = 0; i < w; i += 16)
bc2429b9 427 set_bit((x + i) / 16, s->dirty[y]);
24236869
FB		 428}
429
70a4568f
CC		 430void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
431 int32_t encoding)
24236869
FB		 432{
433 vnc_write_u16(vs, x);
434 vnc_write_u16(vs, y);
435 vnc_write_u16(vs, w);
436 vnc_write_u16(vs, h);
437
438 vnc_write_s32(vs, encoding);
439}
440
2f9606b3 441void buffer_reserve(Buffer *buffer, size_t len)
89064286
AL		 442{
443 if ((buffer->capacity - buffer->offset) < len) {
28a76be8 444 buffer->capacity += (len + 1024);
7267c094 445 buffer->buffer = g_realloc(buffer->buffer, buffer->capacity);
28a76be8
AL		 446 if (buffer->buffer == NULL) {
447 fprintf(stderr, "vnc: out of memory\n");
448 exit(1);
449 }
89064286
AL		 450 }
451}
452
2f9606b3 453int buffer_empty(Buffer *buffer)
89064286
AL		 454{
455 return buffer->offset == 0;
456}
457
2f9606b3 458uint8_t *buffer_end(Buffer *buffer)
89064286
AL		 459{
460 return buffer->buffer + buffer->offset;
461}
462
2f9606b3 463void buffer_reset(Buffer *buffer)
89064286 464{
28a76be8 465 buffer->offset = 0;
89064286
AL		 466}
467
5d418e3b
CC		 468void buffer_free(Buffer *buffer)
469{
7267c094 470 g_free(buffer->buffer);
5d418e3b
CC		 471 buffer->offset = 0;
472 buffer->capacity = 0;
473 buffer->buffer = NULL;
474}
475
2f9606b3 476void buffer_append(Buffer *buffer, const void *data, size_t len)
89064286
AL		 477{
478 memcpy(buffer->buffer + buffer->offset, data, len);
479 buffer->offset += len;
480}
481
621aaeb9
GH		 482static void vnc_desktop_resize(VncState *vs)
483{
484 DisplayState *ds = vs->ds;
485
486 if (vs->csock == -1 || !vnc_has_feature(vs, VNC_FEATURE_RESIZE)) {
487 return;
488 }
1d4b638a
GH		 489 if (vs->client_width == ds_get_width(ds) &&
490 vs->client_height == ds_get_height(ds)) {
491 return;
492 }
5862d195
GH		 493 vs->client_width = ds_get_width(ds);
494 vs->client_height = ds_get_height(ds);
bd023f95 495 vnc_lock_output(vs);
621aaeb9
GH		 496 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
497 vnc_write_u8(vs, 0);
498 vnc_write_u16(vs, 1); /* number of rects */
5862d195 499 vnc_framebuffer_update(vs, 0, 0, vs->client_width, vs->client_height,
621aaeb9 500 VNC_ENCODING_DESKTOPRESIZE);
bd023f95 501 vnc_unlock_output(vs);
621aaeb9
GH		 502 vnc_flush(vs);
503}
504
bd023f95
CC		 505#ifdef CONFIG_VNC_THREAD
506static void vnc_abort_display_jobs(VncDisplay *vd)
507{
508 VncState *vs;
509
510 QTAILQ_FOREACH(vs, &vd->clients, next) {
511 vnc_lock_output(vs);
512 vs->abort = true;
513 vnc_unlock_output(vs);
514 }
515 QTAILQ_FOREACH(vs, &vd->clients, next) {
516 vnc_jobs_join(vs);
517 }
518 QTAILQ_FOREACH(vs, &vd->clients, next) {
519 vnc_lock_output(vs);
520 vs->abort = false;
521 vnc_unlock_output(vs);
522 }
523}
524#else
525static void vnc_abort_display_jobs(VncDisplay *vd)
526{
527}
528#endif
529
1fc62412 530static void vnc_dpy_resize(DisplayState *ds)
24236869 531{
1fc62412 532 VncDisplay *vd = ds->opaque;
41b4bef6 533 VncState *vs;
1fc62412 534
bd023f95
CC		 535 vnc_abort_display_jobs(vd);
536
1fc62412
SS		 537 /* server surface */
538 if (!vd->server)
7267c094 539 vd->server = g_malloc0(sizeof(*vd->server));
1fc62412 540 if (vd->server->data)
7267c094 541 g_free(vd->server->data);
1fc62412 542 *(vd->server) = *(ds->surface);
7267c094 543 vd->server->data = g_malloc0(vd->server->linesize *
1fc62412 544 vd->server->height);
24236869 545
6baebed7 546 /* guest surface */
1fc62412 547 if (!vd->guest.ds)
7267c094 548 vd->guest.ds = g_malloc0(sizeof(*vd->guest.ds));
1fc62412 549 if (ds_get_bytes_per_pixel(ds) != vd->guest.ds->pf.bytes_per_pixel)
a528b80c 550 console_color_init(ds);
1fc62412
SS		 551 *(vd->guest.ds) = *(ds->surface);
552 memset(vd->guest.dirty, 0xFF, sizeof(vd->guest.dirty));
24236869 553
41b4bef6 554 QTAILQ_FOREACH(vs, &vd->clients, next) {
1fc62412 555 vnc_colordepth(vs);
1d4b638a 556 vnc_desktop_resize(vs);
d467b679
GH		 557 if (vs->vd->cursor) {
558 vnc_cursor_define(vs);
559 }
1fc62412 560 memset(vs->dirty, 0xFF, sizeof(vs->dirty));
753b4053
AL		 561 }
562}
563
3512779a 564/* fastest code */
d467b679
GH		 565static void vnc_write_pixels_copy(VncState *vs, struct PixelFormat *pf,
566 void *pixels, int size)
3512779a
FB		 567{
568 vnc_write(vs, pixels, size);
569}
570
571/* slowest but generic code. */
70a4568f 572void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v)
3512779a 573{
7eac3a87 574 uint8_t r, g, b;
1fc62412
SS		 575 VncDisplay *vd = vs->vd;
576
577 r = ((((v & vd->server->pf.rmask) >> vd->server->pf.rshift) << vs->clientds.pf.rbits) >>
578 vd->server->pf.rbits);
579 g = ((((v & vd->server->pf.gmask) >> vd->server->pf.gshift) << vs->clientds.pf.gbits) >>
580 vd->server->pf.gbits);
581 b = ((((v & vd->server->pf.bmask) >> vd->server->pf.bshift) << vs->clientds.pf.bbits) >>
582 vd->server->pf.bbits);
6cec5487
AL		 583 v = (r << vs->clientds.pf.rshift) |
584 (g << vs->clientds.pf.gshift) |
585 (b << vs->clientds.pf.bshift);
586 switch(vs->clientds.pf.bytes_per_pixel) {
3512779a
FB		 587 case 1:
588 buf[0] = v;
589 break;
590 case 2:
6cec5487 591 if (vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) {
3512779a
FB		 592 buf[0] = v >> 8;
593 buf[1] = v;
594 } else {
595 buf[1] = v >> 8;
596 buf[0] = v;
597 }
598 break;
599 default:
600 case 4:
6cec5487 601 if (vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) {
3512779a
FB		 602 buf[0] = v >> 24;
603 buf[1] = v >> 16;
604 buf[2] = v >> 8;
605 buf[3] = v;
606 } else {
607 buf[3] = v >> 24;
608 buf[2] = v >> 16;
609 buf[1] = v >> 8;
610 buf[0] = v;
611 }
612 break;
613 }
614}
615
d467b679
GH		 616static void vnc_write_pixels_generic(VncState *vs, struct PixelFormat *pf,
617 void *pixels1, int size)
3512779a 618{
3512779a 619 uint8_t buf[4];
3512779a 620
d467b679 621 if (pf->bytes_per_pixel == 4) {
7eac3a87
AL		 622 uint32_t *pixels = pixels1;
623 int n, i;
624 n = size >> 2;
625 for(i = 0; i < n; i++) {
626 vnc_convert_pixel(vs, buf, pixels[i]);
6cec5487 627 vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel);
7eac3a87 628 }
d467b679 629 } else if (pf->bytes_per_pixel == 2) {
7eac3a87
AL		 630 uint16_t *pixels = pixels1;
631 int n, i;
632 n = size >> 1;
633 for(i = 0; i < n; i++) {
634 vnc_convert_pixel(vs, buf, pixels[i]);
6cec5487 635 vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel);
7eac3a87 636 }
d467b679 637 } else if (pf->bytes_per_pixel == 1) {
7eac3a87
AL		 638 uint8_t *pixels = pixels1;
639 int n, i;
640 n = size;
641 for(i = 0; i < n; i++) {
642 vnc_convert_pixel(vs, buf, pixels[i]);
6cec5487 643 vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel);
7eac3a87
AL		 644 }
645 } else {
646 fprintf(stderr, "vnc_write_pixels_generic: VncState color depth not supported\n");
3512779a
FB		 647 }
648}
649
a885211e 650int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
24236869
FB		 651{
652 int i;
60fe76f3 653 uint8_t *row;
1fc62412 654 VncDisplay *vd = vs->vd;
24236869 655
1fc62412 656 row = vd->server->data + y * ds_get_linesize(vs->ds) + x * ds_get_bytes_per_pixel(vs->ds);
24236869 657 for (i = 0; i < h; i++) {
d467b679 658 vs->write_pixels(vs, &vd->server->pf, row, w * ds_get_bytes_per_pixel(vs->ds));
28a76be8 659 row += ds_get_linesize(vs->ds);
24236869 660 }
a885211e 661 return 1;
24236869
FB		 662}
663
bd023f95 664int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
24236869 665{
a885211e
CC		 666 int n = 0;
667
fb437313 668 switch(vs->vnc_encoding) {
28a76be8 669 case VNC_ENCODING_ZLIB:
a885211e 670 n = vnc_zlib_send_framebuffer_update(vs, x, y, w, h);
28a76be8
AL		 671 break;
672 case VNC_ENCODING_HEXTILE:
673 vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_HEXTILE);
a885211e 674 n = vnc_hextile_send_framebuffer_update(vs, x, y, w, h);
28a76be8 675 break;
380282b0
CC		 676 case VNC_ENCODING_TIGHT:
677 n = vnc_tight_send_framebuffer_update(vs, x, y, w, h);
678 break;
efe556ad
CC		 679 case VNC_ENCODING_TIGHT_PNG:
680 n = vnc_tight_png_send_framebuffer_update(vs, x, y, w, h);
681 break;
148954fa
CC		 682 case VNC_ENCODING_ZRLE:
683 n = vnc_zrle_send_framebuffer_update(vs, x, y, w, h);
684 break;
685 case VNC_ENCODING_ZYWRLE:
686 n = vnc_zywrle_send_framebuffer_update(vs, x, y, w, h);
687 break;
28a76be8
AL		 688 default:
689 vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW);
a885211e 690 n = vnc_raw_send_framebuffer_update(vs, x, y, w, h);
28a76be8 691 break;
fb437313 692 }
a885211e 693 return n;
24236869
FB		 694}
695
753b4053 696static void vnc_copy(VncState *vs, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
24236869 697{
3e28c9ad 698 /* send bitblit op to the vnc client */
bd023f95 699 vnc_lock_output(vs);
46a183da 700 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
24236869
FB		 701 vnc_write_u8(vs, 0);
702 vnc_write_u16(vs, 1); /* number of rects */
29fa4ed9 703 vnc_framebuffer_update(vs, dst_x, dst_y, w, h, VNC_ENCODING_COPYRECT);
24236869
FB		 704 vnc_write_u16(vs, src_x);
705 vnc_write_u16(vs, src_y);
bd023f95 706 vnc_unlock_output(vs);
24236869
FB		 707 vnc_flush(vs);
708}
709
753b4053
AL		 710static void vnc_dpy_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
711{
712 VncDisplay *vd = ds->opaque;
198a0039 713 VncState *vs, *vn;
1fc62412
SS		 714 uint8_t *src_row;
715 uint8_t *dst_row;
716 int i,x,y,pitch,depth,inc,w_lim,s;
717 int cmp_bytes;
198a0039 718
1fc62412 719 vnc_refresh_server_surface(vd);
41b4bef6 720 QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) {
198a0039
GH		 721 if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
722 vs->force_update = 1;
bd023f95 723 vnc_update_client_sync(vs, 1);
198a0039
GH		 724 /* vs might be free()ed here */
725 }
726 }
727
1fc62412
SS		 728 /* do bitblit op on the local surface too */
729 pitch = ds_get_linesize(vd->ds);
730 depth = ds_get_bytes_per_pixel(vd->ds);
731 src_row = vd->server->data + pitch * src_y + depth * src_x;
732 dst_row = vd->server->data + pitch * dst_y + depth * dst_x;
733 y = dst_y;
734 inc = 1;
735 if (dst_y > src_y) {
736 /* copy backwards */
737 src_row += pitch * (h-1);
738 dst_row += pitch * (h-1);
739 pitch = -pitch;
740 y = dst_y + h - 1;
741 inc = -1;
742 }
743 w_lim = w - (16 - (dst_x % 16));
744 if (w_lim < 0)
745 w_lim = w;
746 else
747 w_lim = w - (w_lim % 16);
748 for (i = 0; i < h; i++) {
749 for (x = 0; x <= w_lim;
750 x += s, src_row += cmp_bytes, dst_row += cmp_bytes) {
751 if (x == w_lim) {
752 if ((s = w - w_lim) == 0)
753 break;
754 } else if (!x) {
755 s = (16 - (dst_x % 16));
756 s = MIN(s, w_lim);
757 } else {
758 s = 16;
759 }
760 cmp_bytes = s * depth;
761 if (memcmp(src_row, dst_row, cmp_bytes) == 0)
762 continue;
763 memmove(dst_row, src_row, cmp_bytes);
41b4bef6
AS		 764 QTAILQ_FOREACH(vs, &vd->clients, next) {
765 if (!vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
bc2429b9 766 set_bit(((x + dst_x) / 16), vs->dirty[y]);
41b4bef6 767 }
1fc62412
SS		 768 }
769 }
770 src_row += pitch - w * depth;
771 dst_row += pitch - w * depth;
772 y += inc;
773 }
774
41b4bef6
AS		 775 QTAILQ_FOREACH(vs, &vd->clients, next) {
776 if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
753b4053 777 vnc_copy(vs, src_x, src_y, dst_x, dst_y, w, h);
41b4bef6 778 }
753b4053
AL		 779 }
780}
781
d467b679
GH		 782static void vnc_mouse_set(int x, int y, int visible)
783{
784 /* can we ask the client(s) to move the pointer ??? */
785}
786
787static int vnc_cursor_define(VncState *vs)
788{
789 QEMUCursor *c = vs->vd->cursor;
790 PixelFormat pf = qemu_default_pixelformat(32);
791 int isize;
792
793 if (vnc_has_feature(vs, VNC_FEATURE_RICH_CURSOR)) {
d01f9595 794 vnc_lock_output(vs);
d467b679
GH		 795 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
796 vnc_write_u8(vs, 0); /* padding */
797 vnc_write_u16(vs, 1); /* # of rects */
798 vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height,
799 VNC_ENCODING_RICH_CURSOR);
800 isize = c->width * c->height * vs->clientds.pf.bytes_per_pixel;
801 vnc_write_pixels_generic(vs, &pf, c->data, isize);
802 vnc_write(vs, vs->vd->cursor_mask, vs->vd->cursor_msize);
d01f9595 803 vnc_unlock_output(vs);
d467b679
GH		 804 return 0;
805 }
806 return -1;
807}
808
809static void vnc_dpy_cursor_define(QEMUCursor *c)
810{
811 VncDisplay *vd = vnc_display;
812 VncState *vs;
813
814 cursor_put(vd->cursor);
7267c094 815 g_free(vd->cursor_mask);
d467b679
GH		 816
817 vd->cursor = c;
818 cursor_get(vd->cursor);
819 vd->cursor_msize = cursor_get_mono_bpl(c) * c->height;
7267c094 820 vd->cursor_mask = g_malloc0(vd->cursor_msize);
d467b679
GH		 821 cursor_get_mono_mask(c, 0, vd->cursor_mask);
822
823 QTAILQ_FOREACH(vs, &vd->clients, next) {
824 vnc_cursor_define(vs);
825 }
826}
827
1fc62412 828static int find_and_clear_dirty_height(struct VncState *vs,
6c71a539 829 int y, int last_x, int x, int height)
24236869
FB		 830{
831 int h;
832
6c71a539 833 for (h = 1; h < (height - y); h++) {
28a76be8 834 int tmp_x;
bc2429b9 835 if (!test_bit(last_x, vs->dirty[y + h])) {
28a76be8 836 break;
bc2429b9
CC		 837 }
838 for (tmp_x = last_x; tmp_x < x; tmp_x++) {
839 clear_bit(tmp_x, vs->dirty[y + h]);
840 }
24236869
FB		 841 }
842
843 return h;
844}
845
bd023f95
CC		 846#ifdef CONFIG_VNC_THREAD
847static int vnc_update_client_sync(VncState *vs, int has_dirty)
848{
849 int ret = vnc_update_client(vs, has_dirty);
850 vnc_jobs_join(vs);
851 return ret;
852}
853#else
854static int vnc_update_client_sync(VncState *vs, int has_dirty)
855{
856 return vnc_update_client(vs, has_dirty);
857}
858#endif
859
2430ffe4 860static int vnc_update_client(VncState *vs, int has_dirty)
24236869 861{
24236869 862 if (vs->need_update && vs->csock != -1) {
1fc62412 863 VncDisplay *vd = vs->vd;
bd023f95 864 VncJob *job;
28a76be8 865 int y;
847ce6a1 866 int width, height;
bd023f95
CC		 867 int n = 0;
868
24236869 869
703bc68f 870 if (vs->output.offset && !vs->audio_cap && !vs->force_update)
c522d0e2 871 /* kernel send buffers are full -> drop frames to throttle */
2430ffe4 872 return 0;
a0ecfb73 873
703bc68f 874 if (!has_dirty && !vs->audio_cap && !vs->force_update)
2430ffe4 875 return 0;
28a76be8 876
6baebed7
AL		 877 /*
878 * Send screen updates to the vnc client using the server
879 * surface and server dirty map. guest surface updates
880 * happening in parallel don't disturb us, the next pass will
881 * send them to the client.
882 */
bd023f95 883 job = vnc_job_new(vs);
28a76be8 884
847ce6a1
GH		 885 width = MIN(vd->server->width, vs->client_width);
886 height = MIN(vd->server->height, vs->client_height);
887
888 for (y = 0; y < height; y++) {
28a76be8
AL		 889 int x;
890 int last_x = -1;
847ce6a1 891 for (x = 0; x < width / 16; x++) {
bc2429b9 892 if (test_and_clear_bit(x, vs->dirty[y])) {
28a76be8
AL		 893 if (last_x == -1) {
894 last_x = x;
895 }
28a76be8
AL		 896 } else {
897 if (last_x != -1) {
6c71a539
CC		 898 int h = find_and_clear_dirty_height(vs, y, last_x, x,
899 height);
bd023f95
CC		 900
901 n += vnc_job_add_rect(job, last_x * 16, y,
902 (x - last_x) * 16, h);
28a76be8
AL		 903 }
904 last_x = -1;
905 }
906 }
907 if (last_x != -1) {
6c71a539 908 int h = find_and_clear_dirty_height(vs, y, last_x, x, height);
bd023f95
CC		 909 n += vnc_job_add_rect(job, last_x * 16, y,
910 (x - last_x) * 16, h);
28a76be8
AL		 911 }
912 }
bd023f95
CC		 913
914 vnc_job_push(job);
c522d0e2 915 vs->force_update = 0;
bd023f95 916 return n;
24236869 917 }
24236869 918
703bc68f 919 if (vs->csock == -1)
198a0039 920 vnc_disconnect_finish(vs);
2430ffe4
SS		 921
922 return 0;
24236869
FB		 923}
924
429a8ed3 925/* audio */
926static void audio_capture_notify(void *opaque, audcnotification_e cmd)
927{
928 VncState *vs = opaque;
929
930 switch (cmd) {
931 case AUD_CNOTIFY_DISABLE:
bd023f95 932 vnc_lock_output(vs);
46a183da
DB		 933 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
934 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
935 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_END);
bd023f95 936 vnc_unlock_output(vs);
429a8ed3 937 vnc_flush(vs);
938 break;
939
940 case AUD_CNOTIFY_ENABLE:
bd023f95 941 vnc_lock_output(vs);
46a183da
DB		 942 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
943 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
944 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_BEGIN);
bd023f95 945 vnc_unlock_output(vs);
429a8ed3 946 vnc_flush(vs);
947 break;
948 }
949}
950
951static void audio_capture_destroy(void *opaque)
952{
953}
954
955static void audio_capture(void *opaque, void *buf, int size)
956{
957 VncState *vs = opaque;
958
bd023f95 959 vnc_lock_output(vs);
46a183da
DB		 960 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
961 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
962 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_DATA);
429a8ed3 963 vnc_write_u32(vs, size);
964 vnc_write(vs, buf, size);
bd023f95 965 vnc_unlock_output(vs);
429a8ed3 966 vnc_flush(vs);
967}
968
969static void audio_add(VncState *vs)
970{
971 struct audio_capture_ops ops;
972
973 if (vs->audio_cap) {
8631b608 974 monitor_printf(default_mon, "audio already running\n");
429a8ed3 975 return;
976 }
977
978 ops.notify = audio_capture_notify;
979 ops.destroy = audio_capture_destroy;
980 ops.capture = audio_capture;
981
1a7dafce 982 vs->audio_cap = AUD_add_capture(&vs->as, &ops, vs);
429a8ed3 983 if (!vs->audio_cap) {
8631b608 984 monitor_printf(default_mon, "Failed to add audio capture\n");
429a8ed3 985 }
986}
987
988static void audio_del(VncState *vs)
989{
990 if (vs->audio_cap) {
991 AUD_del_capture(vs->audio_cap, vs);
992 vs->audio_cap = NULL;
993 }
994}
995
198a0039
GH		 996static void vnc_disconnect_start(VncState *vs)
997{
998 if (vs->csock == -1)
999 return;
1000 qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
1001 closesocket(vs->csock);
1002 vs->csock = -1;
1003}
1004
1005static void vnc_disconnect_finish(VncState *vs)
1006{
7d964c9d
CC		 1007 int i;
1008
bd023f95
CC		 1009 vnc_jobs_join(vs); /* Wait encoding jobs */
1010
1011 vnc_lock_output(vs);
0d72f3d3
LC		 1012 vnc_qmp_event(vs, QEVENT_VNC_DISCONNECTED);
1013
5d418e3b
CC		 1014 buffer_free(&vs->input);
1015 buffer_free(&vs->output);
4a80dba3
LC		 1016
1017 qobject_decref(vs->info);
1018
161c4f20 1019 vnc_zlib_clear(vs);
380282b0 1020 vnc_tight_clear(vs);
148954fa 1021 vnc_zrle_clear(vs);
161c4f20 1022
198a0039
GH		 1023#ifdef CONFIG_VNC_TLS
1024 vnc_tls_client_cleanup(vs);
1025#endif /* CONFIG_VNC_TLS */
1026#ifdef CONFIG_VNC_SASL
1027 vnc_sasl_client_cleanup(vs);
1028#endif /* CONFIG_VNC_SASL */
1029 audio_del(vs);
1030
41b4bef6
AS		 1031 QTAILQ_REMOVE(&vs->vd->clients, vs, next);
1032
1033 if (QTAILQ_EMPTY(&vs->vd->clients)) {
198a0039 1034 dcl->idle = 1;
41b4bef6 1035 }
198a0039 1036
37c34d9d 1037 qemu_remove_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
703bc68f 1038 vnc_remove_timer(vs->vd);
3a0558b5
GH		 1039 if (vs->vd->lock_key_sync)
1040 qemu_remove_led_event_handler(vs->led);
bd023f95
CC		 1041 vnc_unlock_output(vs);
1042
1043#ifdef CONFIG_VNC_THREAD
1044 qemu_mutex_destroy(&vs->output_mutex);
1045#endif
7d964c9d 1046 for (i = 0; i < VNC_STAT_ROWS; ++i) {
7267c094 1047 g_free(vs->lossy_rect[i]);
7d964c9d 1048 }
7267c094
AL		 1049 g_free(vs->lossy_rect);
1050 g_free(vs);
198a0039 1051}
2f9606b3
AL		 1052
1053int vnc_client_io_error(VncState *vs, int ret, int last_errno)
24236869
FB		 1054{
1055 if (ret == 0 || ret == -1) {
ea01e5fd
AZ		 1056 if (ret == -1) {
1057 switch (last_errno) {
1058 case EINTR:
1059 case EAGAIN:
1060#ifdef _WIN32
1061 case WSAEWOULDBLOCK:
1062#endif
1063 return 0;
1064 default:
1065 break;
1066 }
1067 }
24236869 1068
198a0039
GH		 1069 VNC_DEBUG("Closing down client sock: ret %d, errno %d\n",
1070 ret, ret < 0 ? last_errno : 0);
1071 vnc_disconnect_start(vs);
6baebed7 1072
28a76be8 1073 return 0;
24236869
FB		 1074 }
1075 return ret;
1076}
1077
5fb6c7a8
AL		 1078
1079void vnc_client_error(VncState *vs)
24236869 1080{
198a0039
GH		 1081 VNC_DEBUG("Closing down client sock: protocol error\n");
1082 vnc_disconnect_start(vs);
24236869
FB		 1083}
1084
2f9606b3
AL		 1085
1086/*
1087 * Called to write a chunk of data to the client socket. The data may
1088 * be the raw data, or may have already been encoded by SASL.
1089 * The data will be written either straight onto the socket, or
1090 * written via the GNUTLS wrappers, if TLS/SSL encryption is enabled
1091 *
1092 * NB, it is theoretically possible to have 2 layers of encryption,
1093 * both SASL, and this TLS layer. It is highly unlikely in practice
1094 * though, since SASL encryption will typically be a no-op if TLS
1095 * is active
1096 *
1097 * Returns the number of bytes written, which may be less than
1098 * the requested 'datalen' if the socket would block. Returns
1099 * -1 on error, and disconnects the client socket.
1100 */
1101long vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen)
24236869 1102{
ceb5caaf 1103 long ret;
eb38c52c 1104#ifdef CONFIG_VNC_TLS
5fb6c7a8 1105 if (vs->tls.session) {
28a76be8
AL		 1106 ret = gnutls_write(vs->tls.session, data, datalen);
1107 if (ret < 0) {
1108 if (ret == GNUTLS_E_AGAIN)
1109 errno = EAGAIN;
1110 else
1111 errno = EIO;
1112 ret = -1;
1113 }
8d5d2d4c
TS		 1114 } else
1115#endif /* CONFIG_VNC_TLS */
70503264 1116 ret = send(vs->csock, (const void *)data, datalen, 0);
23decc87 1117 VNC_DEBUG("Wrote wire %p %zd -> %ld\n", data, datalen, ret);
2f9606b3
AL		 1118 return vnc_client_io_error(vs, ret, socket_error());
1119}
1120
1121
1122/*
1123 * Called to write buffered data to the client socket, when not
1124 * using any SASL SSF encryption layers. Will write as much data
1125 * as possible without blocking. If all buffered data is written,
1126 * will switch the FD poll() handler back to read monitoring.
1127 *
1128 * Returns the number of bytes written, which may be less than
1129 * the buffered output data if the socket would block. Returns
1130 * -1 on error, and disconnects the client socket.
1131 */
1132static long vnc_client_write_plain(VncState *vs)
1133{
1134 long ret;
1135
1136#ifdef CONFIG_VNC_SASL
23decc87 1137 VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n",
2f9606b3
AL		 1138 vs->output.buffer, vs->output.capacity, vs->output.offset,
1139 vs->sasl.waitWriteSSF);
1140
1141 if (vs->sasl.conn &&
1142 vs->sasl.runSSF &&
1143 vs->sasl.waitWriteSSF) {
1144 ret = vnc_client_write_buf(vs, vs->output.buffer, vs->sasl.waitWriteSSF);
1145 if (ret)
1146 vs->sasl.waitWriteSSF -= ret;
1147 } else
1148#endif /* CONFIG_VNC_SASL */
1149 ret = vnc_client_write_buf(vs, vs->output.buffer, vs->output.offset);
24236869 1150 if (!ret)
2f9606b3 1151 return 0;
24236869
FB		 1152
1153 memmove(vs->output.buffer, vs->output.buffer + ret, (vs->output.offset - ret));
1154 vs->output.offset -= ret;
1155
1156 if (vs->output.offset == 0) {
28a76be8 1157 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
24236869 1158 }
2f9606b3
AL		 1159
1160 return ret;
1161}
1162
1163
1164/*
1165 * First function called whenever there is data to be written to
1166 * the client socket. Will delegate actual work according to whether
1167 * SASL SSF layers are enabled (thus requiring encryption calls)
1168 */
bd023f95 1169static void vnc_client_write_locked(void *opaque)
2f9606b3 1170{
2f9606b3
AL		 1171 VncState *vs = opaque;
1172
1173#ifdef CONFIG_VNC_SASL
1174 if (vs->sasl.conn &&
1175 vs->sasl.runSSF &&
9678d950
BS		 1176 !vs->sasl.waitWriteSSF) {
1177 vnc_client_write_sasl(vs);
1178 } else
2f9606b3 1179#endif /* CONFIG_VNC_SASL */
9678d950 1180 vnc_client_write_plain(vs);
24236869
FB		 1181}
1182
bd023f95
CC		 1183void vnc_client_write(void *opaque)
1184{
1185 VncState *vs = opaque;
1186
1187 vnc_lock_output(vs);
1188 if (vs->output.offset) {
1189 vnc_client_write_locked(opaque);
ac71103d 1190 } else if (vs->csock != -1) {
bd023f95
CC		 1191 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
1192 }
1193 vnc_unlock_output(vs);
1194}
1195
5fb6c7a8 1196void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting)
24236869
FB		 1197{
1198 vs->read_handler = func;
1199 vs->read_handler_expect = expecting;
1200}
1201
2f9606b3
AL		 1202
1203/*
1204 * Called to read a chunk of data from the client socket. The data may
1205 * be the raw data, or may need to be further decoded by SASL.
1206 * The data will be read either straight from to the socket, or
1207 * read via the GNUTLS wrappers, if TLS/SSL encryption is enabled
1208 *
1209 * NB, it is theoretically possible to have 2 layers of encryption,
1210 * both SASL, and this TLS layer. It is highly unlikely in practice
1211 * though, since SASL encryption will typically be a no-op if TLS
1212 * is active
1213 *
1214 * Returns the number of bytes read, which may be less than
1215 * the requested 'datalen' if the socket would block. Returns
1216 * -1 on error, and disconnects the client socket.
1217 */
1218long vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen)
24236869 1219{
ceb5caaf 1220 long ret;
eb38c52c 1221#ifdef CONFIG_VNC_TLS
5fb6c7a8 1222 if (vs->tls.session) {
28a76be8
AL		 1223 ret = gnutls_read(vs->tls.session, data, datalen);
1224 if (ret < 0) {
1225 if (ret == GNUTLS_E_AGAIN)
1226 errno = EAGAIN;
1227 else
1228 errno = EIO;
1229 ret = -1;
1230 }
8d5d2d4c
TS		 1231 } else
1232#endif /* CONFIG_VNC_TLS */
00aa0040 1233 ret = qemu_recv(vs->csock, data, datalen, 0);
23decc87 1234 VNC_DEBUG("Read wire %p %zd -> %ld\n", data, datalen, ret);
2f9606b3
AL		 1235 return vnc_client_io_error(vs, ret, socket_error());
1236}
24236869 1237
2f9606b3
AL		 1238
1239/*
1240 * Called to read data from the client socket to the input buffer,
1241 * when not using any SASL SSF encryption layers. Will read as much
1242 * data as possible without blocking.
1243 *
1244 * Returns the number of bytes read. Returns -1 on error, and
1245 * disconnects the client socket.
1246 */
1247static long vnc_client_read_plain(VncState *vs)
1248{
1249 int ret;
23decc87 1250 VNC_DEBUG("Read plain %p size %zd offset %zd\n",
2f9606b3
AL		 1251 vs->input.buffer, vs->input.capacity, vs->input.offset);
1252 buffer_reserve(&vs->input, 4096);
1253 ret = vnc_client_read_buf(vs, buffer_end(&vs->input), 4096);
1254 if (!ret)
1255 return 0;
24236869 1256 vs->input.offset += ret;
2f9606b3
AL		 1257 return ret;
1258}
1259
1260
1261/*
1262 * First function called whenever there is more data to be read from
1263 * the client socket. Will delegate actual work according to whether
1264 * SASL SSF layers are enabled (thus requiring decryption calls)
1265 */
1266void vnc_client_read(void *opaque)
1267{
1268 VncState *vs = opaque;
1269 long ret;
1270
1271#ifdef CONFIG_VNC_SASL
1272 if (vs->sasl.conn && vs->sasl.runSSF)
1273 ret = vnc_client_read_sasl(vs);
1274 else
1275#endif /* CONFIG_VNC_SASL */
1276 ret = vnc_client_read_plain(vs);
198a0039
GH		 1277 if (!ret) {
1278 if (vs->csock == -1)
1279 vnc_disconnect_finish(vs);
28a76be8 1280 return;
198a0039 1281 }
24236869
FB		 1282
1283 while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
28a76be8
AL		 1284 size_t len = vs->read_handler_expect;
1285 int ret;
1286
1287 ret = vs->read_handler(vs, vs->input.buffer, len);
198a0039
GH		 1288 if (vs->csock == -1) {
1289 vnc_disconnect_finish(vs);
28a76be8 1290 return;
198a0039 1291 }
28a76be8
AL		 1292
1293 if (!ret) {
1294 memmove(vs->input.buffer, vs->input.buffer + len, (vs->input.offset - len));
1295 vs->input.offset -= len;
1296 } else {
1297 vs->read_handler_expect = ret;
1298 }
24236869
FB		 1299 }
1300}
1301
5fb6c7a8 1302void vnc_write(VncState *vs, const void *data, size_t len)
24236869
FB		 1303{
1304 buffer_reserve(&vs->output, len);
1305
198a0039 1306 if (vs->csock != -1 && buffer_empty(&vs->output)) {
28a76be8 1307 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
24236869
FB		 1308 }
1309
1310 buffer_append(&vs->output, data, len);
1311}
1312
5fb6c7a8 1313void vnc_write_s32(VncState *vs, int32_t value)
24236869
FB		 1314{
1315 vnc_write_u32(vs, *(uint32_t *)&value);
1316}
1317
5fb6c7a8 1318void vnc_write_u32(VncState *vs, uint32_t value)
24236869
FB		 1319{
1320 uint8_t buf[4];
1321
1322 buf[0] = (value >> 24) & 0xFF;
1323 buf[1] = (value >> 16) & 0xFF;
1324 buf[2] = (value >> 8) & 0xFF;
1325 buf[3] = value & 0xFF;
1326
1327 vnc_write(vs, buf, 4);
1328}
1329
5fb6c7a8 1330void vnc_write_u16(VncState *vs, uint16_t value)
24236869 1331{
64f5a135 1332 uint8_t buf[2];
24236869
FB		 1333
1334 buf[0] = (value >> 8) & 0xFF;
1335 buf[1] = value & 0xFF;
1336
1337 vnc_write(vs, buf, 2);
1338}
1339
5fb6c7a8 1340void vnc_write_u8(VncState *vs, uint8_t value)
24236869
FB		 1341{
1342 vnc_write(vs, (char *)&value, 1);
1343}
1344
5fb6c7a8 1345void vnc_flush(VncState *vs)
24236869 1346{
bd023f95
CC		 1347 vnc_lock_output(vs);
1348 if (vs->csock != -1 && vs->output.offset) {
1349 vnc_client_write_locked(vs);
1350 }
1351 vnc_unlock_output(vs);
24236869
FB		 1352}
1353
5fb6c7a8 1354uint8_t read_u8(uint8_t *data, size_t offset)
24236869
FB		 1355{
1356 return data[offset];
1357}
1358
5fb6c7a8 1359uint16_t read_u16(uint8_t *data, size_t offset)
24236869
FB		 1360{
1361 return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF);
1362}
1363
5fb6c7a8 1364int32_t read_s32(uint8_t *data, size_t offset)
24236869
FB		 1365{
1366 return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) |
28a76be8 1367 (data[offset + 2] << 8) | data[offset + 3]);
24236869
FB		 1368}
1369
5fb6c7a8 1370uint32_t read_u32(uint8_t *data, size_t offset)
24236869
FB		 1371{
1372 return ((data[offset] << 24) | (data[offset + 1] << 16) |
28a76be8 1373 (data[offset + 2] << 8) | data[offset + 3]);
24236869
FB		 1374}
1375
60fe76f3 1376static void client_cut_text(VncState *vs, size_t len, uint8_t *text)
24236869
FB		 1377{
1378}
1379
9e8dd451 1380static void check_pointer_type_change(Notifier *notifier, void *data)
564c337e 1381{
37c34d9d
AL		 1382 VncState *vs = container_of(notifier, VncState, mouse_mode_notifier);
1383 int absolute = kbd_mouse_is_absolute();
1384
29fa4ed9 1385 if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE) && vs->absolute != absolute) {
bd023f95 1386 vnc_lock_output(vs);
46a183da 1387 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
28a76be8
AL		 1388 vnc_write_u8(vs, 0);
1389 vnc_write_u16(vs, 1);
1390 vnc_framebuffer_update(vs, absolute, 0,
1391 ds_get_width(vs->ds), ds_get_height(vs->ds),
29fa4ed9 1392 VNC_ENCODING_POINTER_TYPE_CHANGE);
bd023f95 1393 vnc_unlock_output(vs);
28a76be8 1394 vnc_flush(vs);
564c337e
FB		 1395 }
1396 vs->absolute = absolute;
1397}
1398
24236869
FB		 1399static void pointer_event(VncState *vs, int button_mask, int x, int y)
1400{
1401 int buttons = 0;
1402 int dz = 0;
1403
1404 if (button_mask & 0x01)
28a76be8 1405 buttons |= MOUSE_EVENT_LBUTTON;
24236869 1406 if (button_mask & 0x02)
28a76be8 1407 buttons |= MOUSE_EVENT_MBUTTON;
24236869 1408 if (button_mask & 0x04)
28a76be8 1409 buttons |= MOUSE_EVENT_RBUTTON;
24236869 1410 if (button_mask & 0x08)
28a76be8 1411 dz = -1;
24236869 1412 if (button_mask & 0x10)
28a76be8 1413 dz = 1;
564c337e
FB		 1414
1415 if (vs->absolute) {
cc39a92c
CW		 1416 kbd_mouse_event(ds_get_width(vs->ds) > 1 ?
1417 x * 0x7FFF / (ds_get_width(vs->ds) - 1) : 0x4000,
1418 ds_get_height(vs->ds) > 1 ?
1419 y * 0x7FFF / (ds_get_height(vs->ds) - 1) : 0x4000,
28a76be8 1420 dz, buttons);
29fa4ed9 1421 } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) {
28a76be8
AL		 1422 x -= 0x7FFF;
1423 y -= 0x7FFF;
24236869 1424
28a76be8 1425 kbd_mouse_event(x, y, dz, buttons);
564c337e 1426 } else {
28a76be8
AL		 1427 if (vs->last_x != -1)
1428 kbd_mouse_event(x - vs->last_x,
1429 y - vs->last_y,
1430 dz, buttons);
1431 vs->last_x = x;
1432 vs->last_y = y;
24236869
FB		 1433 }
1434}
1435
64f5a135
FB		 1436static void reset_keys(VncState *vs)
1437{
1438 int i;
1439 for(i = 0; i < 256; i++) {
1440 if (vs->modifiers_state[i]) {
44bb61c8
ST		 1441 if (i & SCANCODE_GREY)
1442 kbd_put_keycode(SCANCODE_EMUL0);
1443 kbd_put_keycode(i | SCANCODE_UP);
64f5a135
FB		 1444 vs->modifiers_state[i] = 0;
1445 }
1446 }
1447}
1448
a528b80c
AZ		 1449static void press_key(VncState *vs, int keysym)
1450{
44bb61c8
ST		 1451 int keycode = keysym2scancode(vs->vd->kbd_layout, keysym) & SCANCODE_KEYMASK;
1452 if (keycode & SCANCODE_GREY)
1453 kbd_put_keycode(SCANCODE_EMUL0);
1454 kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
1455 if (keycode & SCANCODE_GREY)
1456 kbd_put_keycode(SCANCODE_EMUL0);
1457 kbd_put_keycode(keycode | SCANCODE_UP);
a528b80c
AZ		 1458}
1459
7ffb82ca
GH		 1460static void kbd_leds(void *opaque, int ledstate)
1461{
1462 VncState *vs = opaque;
1463 int caps, num;
1464
1465 caps = ledstate & QEMU_CAPS_LOCK_LED ? 1 : 0;
1466 num = ledstate & QEMU_NUM_LOCK_LED ? 1 : 0;
1467
1468 if (vs->modifiers_state[0x3a] != caps) {
1469 vs->modifiers_state[0x3a] = caps;
1470 }
1471 if (vs->modifiers_state[0x45] != num) {
1472 vs->modifiers_state[0x45] = num;
1473 }
1474}
1475
9ca313aa 1476static void do_key_event(VncState *vs, int down, int keycode, int sym)
24236869 1477{
64f5a135
FB		 1478 /* QEMU console switch */
1479 switch(keycode) {
1480 case 0x2a: /* Left Shift */
1481 case 0x36: /* Right Shift */
1482 case 0x1d: /* Left CTRL */
1483 case 0x9d: /* Right CTRL */
1484 case 0x38: /* Left ALT */
1485 case 0xb8: /* Right ALT */
1486 if (down)
1487 vs->modifiers_state[keycode] = 1;
1488 else
1489 vs->modifiers_state[keycode] = 0;
1490 break;
5fafdf24 1491 case 0x02 ... 0x0a: /* '1' to '9' keys */
64f5a135
FB		 1492 if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
1493 /* Reset the modifiers sent to the current console */
1494 reset_keys(vs);
1495 console_select(keycode - 0x02);
1496 return;
1497 }
1498 break;
28a76be8
AL		 1499 case 0x3a: /* CapsLock */
1500 case 0x45: /* NumLock */
7ffb82ca 1501 if (down)
a528b80c
AZ		 1502 vs->modifiers_state[keycode] ^= 1;
1503 break;
1504 }
1505
9892088b 1506 if (down && vs->vd->lock_key_sync &&
3a0558b5 1507 keycode_is_keypad(vs->vd->kbd_layout, keycode)) {
a528b80c
AZ		 1508 /* If the numlock state needs to change then simulate an additional
1509 keypress before sending this one. This will happen if the user
1510 toggles numlock away from the VNC window.
1511 */
753b4053 1512 if (keysym_is_numlock(vs->vd->kbd_layout, sym & 0xFFFF)) {
a528b80c
AZ		 1513 if (!vs->modifiers_state[0x45]) {
1514 vs->modifiers_state[0x45] = 1;
1515 press_key(vs, 0xff7f);
1516 }
1517 } else {
1518 if (vs->modifiers_state[0x45]) {
1519 vs->modifiers_state[0x45] = 0;
1520 press_key(vs, 0xff7f);
1521 }
1522 }
64f5a135 1523 }
24236869 1524
9892088b 1525 if (down && vs->vd->lock_key_sync &&
3a0558b5 1526 ((sym >= 'A' && sym <= 'Z') || (sym >= 'a' && sym <= 'z'))) {
6b132502
GH		 1527 /* If the capslock state needs to change then simulate an additional
1528 keypress before sending this one. This will happen if the user
1529 toggles capslock away from the VNC window.
1530 */
1531 int uppercase = !!(sym >= 'A' && sym <= 'Z');
1532 int shift = !!(vs->modifiers_state[0x2a] | vs->modifiers_state[0x36]);
1533 int capslock = !!(vs->modifiers_state[0x3a]);
1534 if (capslock) {
1535 if (uppercase == shift) {
1536 vs->modifiers_state[0x3a] = 0;
1537 press_key(vs, 0xffe5);
1538 }
1539 } else {
1540 if (uppercase != shift) {
1541 vs->modifiers_state[0x3a] = 1;
1542 press_key(vs, 0xffe5);
1543 }
1544 }
1545 }
1546
64f5a135 1547 if (is_graphic_console()) {
44bb61c8
ST		 1548 if (keycode & SCANCODE_GREY)
1549 kbd_put_keycode(SCANCODE_EMUL0);
64f5a135 1550 if (down)
44bb61c8 1551 kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
64f5a135 1552 else
44bb61c8 1553 kbd_put_keycode(keycode | SCANCODE_UP);
64f5a135
FB		 1554 } else {
1555 /* QEMU console emulation */
1556 if (down) {
bb0a18e1 1557 int numlock = vs->modifiers_state[0x45];
64f5a135
FB		 1558 switch (keycode) {
1559 case 0x2a: /* Left Shift */
1560 case 0x36: /* Right Shift */
1561 case 0x1d: /* Left CTRL */
1562 case 0x9d: /* Right CTRL */
1563 case 0x38: /* Left ALT */
1564 case 0xb8: /* Right ALT */
1565 break;
1566 case 0xc8:
1567 kbd_put_keysym(QEMU_KEY_UP);
1568 break;
1569 case 0xd0:
1570 kbd_put_keysym(QEMU_KEY_DOWN);
1571 break;
1572 case 0xcb:
1573 kbd_put_keysym(QEMU_KEY_LEFT);
1574 break;
1575 case 0xcd:
1576 kbd_put_keysym(QEMU_KEY_RIGHT);
1577 break;
1578 case 0xd3:
1579 kbd_put_keysym(QEMU_KEY_DELETE);
1580 break;
1581 case 0xc7:
1582 kbd_put_keysym(QEMU_KEY_HOME);
1583 break;
1584 case 0xcf:
1585 kbd_put_keysym(QEMU_KEY_END);
1586 break;
1587 case 0xc9:
1588 kbd_put_keysym(QEMU_KEY_PAGEUP);
1589 break;
1590 case 0xd1:
1591 kbd_put_keysym(QEMU_KEY_PAGEDOWN);
1592 break;
bb0a18e1
GH		 1593
1594 case 0x47:
1595 kbd_put_keysym(numlock ? '7' : QEMU_KEY_HOME);
1596 break;
1597 case 0x48:
1598 kbd_put_keysym(numlock ? '8' : QEMU_KEY_UP);
1599 break;
1600 case 0x49:
1601 kbd_put_keysym(numlock ? '9' : QEMU_KEY_PAGEUP);
1602 break;
1603 case 0x4b:
1604 kbd_put_keysym(numlock ? '4' : QEMU_KEY_LEFT);
1605 break;
1606 case 0x4c:
1607 kbd_put_keysym('5');
1608 break;
1609 case 0x4d:
1610 kbd_put_keysym(numlock ? '6' : QEMU_KEY_RIGHT);
1611 break;
1612 case 0x4f:
1613 kbd_put_keysym(numlock ? '1' : QEMU_KEY_END);
1614 break;
1615 case 0x50:
1616 kbd_put_keysym(numlock ? '2' : QEMU_KEY_DOWN);
1617 break;
1618 case 0x51:
1619 kbd_put_keysym(numlock ? '3' : QEMU_KEY_PAGEDOWN);
1620 break;
1621 case 0x52:
1622 kbd_put_keysym('0');
1623 break;
1624 case 0x53:
1625 kbd_put_keysym(numlock ? '.' : QEMU_KEY_DELETE);
1626 break;
1627
1628 case 0xb5:
1629 kbd_put_keysym('/');
1630 break;
1631 case 0x37:
1632 kbd_put_keysym('*');
1633 break;
1634 case 0x4a:
1635 kbd_put_keysym('-');
1636 break;
1637 case 0x4e:
1638 kbd_put_keysym('+');
1639 break;
1640 case 0x9c:
1641 kbd_put_keysym('\n');
1642 break;
1643
64f5a135
FB		 1644 default:
1645 kbd_put_keysym(sym);
1646 break;
1647 }
1648 }
1649 }
24236869
FB		 1650}
1651
bdbd7676
FB		 1652static void key_event(VncState *vs, int down, uint32_t sym)
1653{
9ca313aa 1654 int keycode;
4a93fe17 1655 int lsym = sym;
9ca313aa 1656
4a93fe17
GH		 1657 if (lsym >= 'A' && lsym <= 'Z' && is_graphic_console()) {
1658 lsym = lsym - 'A' + 'a';
1659 }
9ca313aa 1660
44bb61c8 1661 keycode = keysym2scancode(vs->vd->kbd_layout, lsym & 0xFFFF) & SCANCODE_KEYMASK;
9ca313aa
AL		 1662 do_key_event(vs, down, keycode, sym);
1663}
1664
1665static void ext_key_event(VncState *vs, int down,
1666 uint32_t sym, uint16_t keycode)
1667{
1668 /* if the user specifies a keyboard layout, always use it */
1669 if (keyboard_layout)
1670 key_event(vs, down, sym);
1671 else
1672 do_key_event(vs, down, keycode, sym);
bdbd7676
FB		 1673}
1674
24236869 1675static void framebuffer_update_request(VncState *vs, int incremental,
28a76be8
AL		 1676 int x_position, int y_position,
1677 int w, int h)
24236869 1678{
6ed391bf
WC		 1679 int i;
1680 const size_t width = ds_get_width(vs->ds) / 16;
1681
0e1f5a0c
AL		 1682 if (y_position > ds_get_height(vs->ds))
1683 y_position = ds_get_height(vs->ds);
0e1f5a0c
AL		 1684 if (y_position + h >= ds_get_height(vs->ds))
1685 h = ds_get_height(vs->ds) - y_position;
cf2d385c 1686
24236869
FB		 1687 vs->need_update = 1;
1688 if (!incremental) {
24cf0a6e 1689 vs->force_update = 1;
28a76be8 1690 for (i = 0; i < h; i++) {
6ed391bf
WC		 1691 bitmap_set(vs->dirty[y_position + i], 0, width);
1692 bitmap_clear(vs->dirty[y_position + i], width,
a0843a68 1693 VNC_DIRTY_BITS - width);
28a76be8 1694 }
24236869
FB		 1695 }
1696}
1697
9ca313aa
AL		 1698static void send_ext_key_event_ack(VncState *vs)
1699{
bd023f95 1700 vnc_lock_output(vs);
46a183da 1701 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
9ca313aa
AL		 1702 vnc_write_u8(vs, 0);
1703 vnc_write_u16(vs, 1);
29fa4ed9
AL		 1704 vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), ds_get_height(vs->ds),
1705 VNC_ENCODING_EXT_KEY_EVENT);
bd023f95 1706 vnc_unlock_output(vs);
9ca313aa
AL		 1707 vnc_flush(vs);
1708}
1709
429a8ed3 1710static void send_ext_audio_ack(VncState *vs)
1711{
bd023f95 1712 vnc_lock_output(vs);
46a183da 1713 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
429a8ed3 1714 vnc_write_u8(vs, 0);
1715 vnc_write_u16(vs, 1);
29fa4ed9
AL		 1716 vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), ds_get_height(vs->ds),
1717 VNC_ENCODING_AUDIO);
bd023f95 1718 vnc_unlock_output(vs);
429a8ed3 1719 vnc_flush(vs);
1720}
1721
24236869
FB		 1722static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
1723{
1724 int i;
29fa4ed9 1725 unsigned int enc = 0;
24236869 1726
29fa4ed9 1727 vs->features = 0;
a9f20d31 1728 vs->vnc_encoding = 0;
d1af0e05
CC		 1729 vs->tight.compression = 9;
1730 vs->tight.quality = -1; /* Lossless by default */
564c337e 1731 vs->absolute = -1;
24236869 1732
8a0f0d0c
CC		 1733 /*
1734 * Start from the end because the encodings are sent in order of preference.
e5bed759 1735 * This way the preferred encoding (first encoding defined in the array)
8a0f0d0c
CC		 1736 * will be set at the end of the loop.
1737 */
24236869 1738 for (i = n_encodings - 1; i >= 0; i--) {
29fa4ed9
AL		 1739 enc = encodings[i];
1740 switch (enc) {
1741 case VNC_ENCODING_RAW:
a9f20d31 1742 vs->vnc_encoding = enc;
29fa4ed9
AL		 1743 break;
1744 case VNC_ENCODING_COPYRECT:
753b4053 1745 vs->features |= VNC_FEATURE_COPYRECT_MASK;
29fa4ed9
AL		 1746 break;
1747 case VNC_ENCODING_HEXTILE:
1748 vs->features |= VNC_FEATURE_HEXTILE_MASK;
a9f20d31 1749 vs->vnc_encoding = enc;
29fa4ed9 1750 break;
380282b0
CC		 1751 case VNC_ENCODING_TIGHT:
1752 vs->features |= VNC_FEATURE_TIGHT_MASK;
1753 vs->vnc_encoding = enc;
1754 break;
efe556ad
CC		 1755 case VNC_ENCODING_TIGHT_PNG:
1756 vs->features |= VNC_FEATURE_TIGHT_PNG_MASK;
1757 vs->vnc_encoding = enc;
1758 break;
059cef40
AL		 1759 case VNC_ENCODING_ZLIB:
1760 vs->features |= VNC_FEATURE_ZLIB_MASK;
a9f20d31 1761 vs->vnc_encoding = enc;
059cef40 1762 break;
148954fa
CC		 1763 case VNC_ENCODING_ZRLE:
1764 vs->features |= VNC_FEATURE_ZRLE_MASK;
1765 vs->vnc_encoding = enc;
1766 break;
1767 case VNC_ENCODING_ZYWRLE:
1768 vs->features |= VNC_FEATURE_ZYWRLE_MASK;
1769 vs->vnc_encoding = enc;
1770 break;
29fa4ed9
AL		 1771 case VNC_ENCODING_DESKTOPRESIZE:
1772 vs->features |= VNC_FEATURE_RESIZE_MASK;
1773 break;
1774 case VNC_ENCODING_POINTER_TYPE_CHANGE:
1775 vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK;
1776 break;
d467b679
GH		 1777 case VNC_ENCODING_RICH_CURSOR:
1778 vs->features |= VNC_FEATURE_RICH_CURSOR_MASK;
1779 break;
29fa4ed9 1780 case VNC_ENCODING_EXT_KEY_EVENT:
9ca313aa
AL		 1781 send_ext_key_event_ack(vs);
1782 break;
29fa4ed9 1783 case VNC_ENCODING_AUDIO:
429a8ed3 1784 send_ext_audio_ack(vs);
1785 break;
29fa4ed9
AL		 1786 case VNC_ENCODING_WMVi:
1787 vs->features |= VNC_FEATURE_WMVI_MASK;
ca4cca4d 1788 break;
fb437313 1789 case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9:
d1af0e05 1790 vs->tight.compression = (enc & 0x0F);
fb437313
AL		 1791 break;
1792 case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9:
b31f519e
CC		 1793 if (vs->vd->lossy) {
1794 vs->tight.quality = (enc & 0x0F);
1795 }
fb437313 1796 break;
29fa4ed9
AL		 1797 default:
1798 VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc);
1799 break;
1800 }
24236869 1801 }
6356e472 1802 vnc_desktop_resize(vs);
9e8dd451 1803 check_pointer_type_change(&vs->mouse_mode_notifier, NULL);
24236869
FB		 1804}
1805
6cec5487
AL		 1806static void set_pixel_conversion(VncState *vs)
1807{
1808 if ((vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) ==
1809 (vs->ds->surface->flags & QEMU_BIG_ENDIAN_FLAG) &&
1810 !memcmp(&(vs->clientds.pf), &(vs->ds->surface->pf), sizeof(PixelFormat))) {
1811 vs->write_pixels = vnc_write_pixels_copy;
70a4568f 1812 vnc_hextile_set_pixel_conversion(vs, 0);
6cec5487
AL		 1813 } else {
1814 vs->write_pixels = vnc_write_pixels_generic;
70a4568f 1815 vnc_hextile_set_pixel_conversion(vs, 1);
6cec5487
AL		 1816 }
1817}
1818
24236869 1819static void set_pixel_format(VncState *vs,
28a76be8
AL		 1820 int bits_per_pixel, int depth,
1821 int big_endian_flag, int true_color_flag,
1822 int red_max, int green_max, int blue_max,
1823 int red_shift, int green_shift, int blue_shift)
24236869 1824{
3512779a 1825 if (!true_color_flag) {
28a76be8 1826 vnc_client_error(vs);
3512779a
FB		 1827 return;
1828 }
24236869 1829
1fc62412 1830 vs->clientds = *(vs->vd->guest.ds);
6cec5487 1831 vs->clientds.pf.rmax = red_max;
bc2429b9 1832 vs->clientds.pf.rbits = hweight_long(red_max);
6cec5487
AL		 1833 vs->clientds.pf.rshift = red_shift;
1834 vs->clientds.pf.rmask = red_max << red_shift;
1835 vs->clientds.pf.gmax = green_max;
bc2429b9 1836 vs->clientds.pf.gbits = hweight_long(green_max);
6cec5487
AL		 1837 vs->clientds.pf.gshift = green_shift;
1838 vs->clientds.pf.gmask = green_max << green_shift;
1839 vs->clientds.pf.bmax = blue_max;
bc2429b9 1840 vs->clientds.pf.bbits = hweight_long(blue_max);
6cec5487
AL		 1841 vs->clientds.pf.bshift = blue_shift;
1842 vs->clientds.pf.bmask = blue_max << blue_shift;
1843 vs->clientds.pf.bits_per_pixel = bits_per_pixel;
1844 vs->clientds.pf.bytes_per_pixel = bits_per_pixel / 8;
1845 vs->clientds.pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel;
1846 vs->clientds.flags = big_endian_flag ? QEMU_BIG_ENDIAN_FLAG : 0x00;
1847
1848 set_pixel_conversion(vs);
24236869
FB		 1849
1850 vga_hw_invalidate();
1851 vga_hw_update();
1852}
1853
ca4cca4d
AL		 1854static void pixel_format_message (VncState *vs) {
1855 char pad[3] = { 0, 0, 0 };
1856
6cec5487
AL		 1857 vnc_write_u8(vs, vs->ds->surface->pf.bits_per_pixel); /* bits-per-pixel */
1858 vnc_write_u8(vs, vs->ds->surface->pf.depth); /* depth */
ca4cca4d 1859
e2542fe2 1860#ifdef HOST_WORDS_BIGENDIAN
ca4cca4d
AL		 1861 vnc_write_u8(vs, 1); /* big-endian-flag */
1862#else
1863 vnc_write_u8(vs, 0); /* big-endian-flag */
1864#endif
1865 vnc_write_u8(vs, 1); /* true-color-flag */
6cec5487
AL		 1866 vnc_write_u16(vs, vs->ds->surface->pf.rmax); /* red-max */
1867 vnc_write_u16(vs, vs->ds->surface->pf.gmax); /* green-max */
1868 vnc_write_u16(vs, vs->ds->surface->pf.bmax); /* blue-max */
1869 vnc_write_u8(vs, vs->ds->surface->pf.rshift); /* red-shift */
1870 vnc_write_u8(vs, vs->ds->surface->pf.gshift); /* green-shift */
1871 vnc_write_u8(vs, vs->ds->surface->pf.bshift); /* blue-shift */
70a4568f
CC		 1872
1873 vnc_hextile_set_pixel_conversion(vs, 0);
1874
6cec5487 1875 vs->clientds = *(vs->ds->surface);
3cded540 1876 vs->clientds.flags &= ~QEMU_ALLOCATED_FLAG;
ca4cca4d
AL		 1877 vs->write_pixels = vnc_write_pixels_copy;
1878
1879 vnc_write(vs, pad, 3); /* padding */
1880}
1881
7d957bd8
AL		 1882static void vnc_dpy_setdata(DisplayState *ds)
1883{
1884 /* We don't have to do anything */
1885}
1886
753b4053 1887static void vnc_colordepth(VncState *vs)
7eac3a87 1888{
753b4053 1889 if (vnc_has_feature(vs, VNC_FEATURE_WMVI)) {
ca4cca4d 1890 /* Sending a WMVi message to notify the client*/
bd023f95 1891 vnc_lock_output(vs);
46a183da 1892 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
ca4cca4d
AL		 1893 vnc_write_u8(vs, 0);
1894 vnc_write_u16(vs, 1); /* number of rects */
753b4053
AL		 1895 vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds),
1896 ds_get_height(vs->ds), VNC_ENCODING_WMVi);
ca4cca4d 1897 pixel_format_message(vs);
bd023f95 1898 vnc_unlock_output(vs);
ca4cca4d 1899 vnc_flush(vs);
7eac3a87 1900 } else {
6cec5487 1901 set_pixel_conversion(vs);
7eac3a87
AL		 1902 }
1903}
1904
60fe76f3 1905static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
24236869
FB		 1906{
1907 int i;
1908 uint16_t limit;
2430ffe4
SS		 1909 VncDisplay *vd = vs->vd;
1910
1911 if (data[0] > 3) {
1912 vd->timer_interval = VNC_REFRESH_INTERVAL_BASE;
7bd427d8
PB		 1913 if (!qemu_timer_expired(vd->timer, qemu_get_clock_ms(rt_clock) + vd->timer_interval))
1914 qemu_mod_timer(vd->timer, qemu_get_clock_ms(rt_clock) + vd->timer_interval);
2430ffe4 1915 }
24236869
FB		 1916
1917 switch (data[0]) {
46a183da 1918 case VNC_MSG_CLIENT_SET_PIXEL_FORMAT:
28a76be8
AL		 1919 if (len == 1)
1920 return 20;
1921
1922 set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5),
1923 read_u8(data, 6), read_u8(data, 7),
1924 read_u16(data, 8), read_u16(data, 10),
1925 read_u16(data, 12), read_u8(data, 14),
1926 read_u8(data, 15), read_u8(data, 16));
1927 break;
46a183da 1928 case VNC_MSG_CLIENT_SET_ENCODINGS:
28a76be8
AL		 1929 if (len == 1)
1930 return 4;
24236869 1931
28a76be8 1932 if (len == 4) {
69dd5c9f
AL		 1933 limit = read_u16(data, 2);
1934 if (limit > 0)
1935 return 4 + (limit * 4);
1936 } else
1937 limit = read_u16(data, 2);
24236869 1938
28a76be8
AL		 1939 for (i = 0; i < limit; i++) {
1940 int32_t val = read_s32(data, 4 + (i * 4));
1941 memcpy(data + 4 + (i * 4), &val, sizeof(val));
1942 }
24236869 1943
28a76be8
AL		 1944 set_encodings(vs, (int32_t *)(data + 4), limit);
1945 break;
46a183da 1946 case VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST:
28a76be8
AL		 1947 if (len == 1)
1948 return 10;
24236869 1949
28a76be8
AL		 1950 framebuffer_update_request(vs,
1951 read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
1952 read_u16(data, 6), read_u16(data, 8));
1953 break;
46a183da 1954 case VNC_MSG_CLIENT_KEY_EVENT:
28a76be8
AL		 1955 if (len == 1)
1956 return 8;
24236869 1957
28a76be8
AL		 1958 key_event(vs, read_u8(data, 1), read_u32(data, 4));
1959 break;
46a183da 1960 case VNC_MSG_CLIENT_POINTER_EVENT:
28a76be8
AL		 1961 if (len == 1)
1962 return 6;
24236869 1963
28a76be8
AL		 1964 pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
1965 break;
46a183da 1966 case VNC_MSG_CLIENT_CUT_TEXT:
28a76be8
AL		 1967 if (len == 1)
1968 return 8;
24236869 1969
28a76be8 1970 if (len == 8) {
baa7666c
TS		 1971 uint32_t dlen = read_u32(data, 4);
1972 if (dlen > 0)
1973 return 8 + dlen;
1974 }
24236869 1975
28a76be8
AL		 1976 client_cut_text(vs, read_u32(data, 4), data + 8);
1977 break;
46a183da 1978 case VNC_MSG_CLIENT_QEMU:
9ca313aa
AL		 1979 if (len == 1)
1980 return 2;
1981
1982 switch (read_u8(data, 1)) {
46a183da 1983 case VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT:
9ca313aa
AL		 1984 if (len == 2)
1985 return 12;
1986
1987 ext_key_event(vs, read_u16(data, 2),
1988 read_u32(data, 4), read_u32(data, 8));
1989 break;
46a183da 1990 case VNC_MSG_CLIENT_QEMU_AUDIO:
429a8ed3 1991 if (len == 2)
1992 return 4;
1993
1994 switch (read_u16 (data, 2)) {
46a183da 1995 case VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE:
429a8ed3 1996 audio_add(vs);
1997 break;
46a183da 1998 case VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE:
429a8ed3 1999 audio_del(vs);
2000 break;
46a183da 2001 case VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT:
429a8ed3 2002 if (len == 4)
2003 return 10;
2004 switch (read_u8(data, 4)) {
2005 case 0: vs->as.fmt = AUD_FMT_U8; break;
2006 case 1: vs->as.fmt = AUD_FMT_S8; break;
2007 case 2: vs->as.fmt = AUD_FMT_U16; break;
2008 case 3: vs->as.fmt = AUD_FMT_S16; break;
2009 case 4: vs->as.fmt = AUD_FMT_U32; break;
2010 case 5: vs->as.fmt = AUD_FMT_S32; break;
2011 default:
2012 printf("Invalid audio format %d\n", read_u8(data, 4));
2013 vnc_client_error(vs);
2014 break;
2015 }
2016 vs->as.nchannels = read_u8(data, 5);
2017 if (vs->as.nchannels != 1 && vs->as.nchannels != 2) {
2018 printf("Invalid audio channel coount %d\n",
2019 read_u8(data, 5));
2020 vnc_client_error(vs);
2021 break;
2022 }
2023 vs->as.freq = read_u32(data, 6);
2024 break;
2025 default:
2026 printf ("Invalid audio message %d\n", read_u8(data, 4));
2027 vnc_client_error(vs);
2028 break;
2029 }
2030 break;
2031
9ca313aa
AL		 2032 default:
2033 printf("Msg: %d\n", read_u16(data, 0));
2034 vnc_client_error(vs);
2035 break;
2036 }
2037 break;
24236869 2038 default:
28a76be8
AL		 2039 printf("Msg: %d\n", data[0]);
2040 vnc_client_error(vs);
2041 break;
24236869 2042 }
5fafdf24 2043
24236869
FB		 2044 vnc_read_when(vs, protocol_client_msg, 1);
2045 return 0;
2046}
2047
60fe76f3 2048static int protocol_client_init(VncState *vs, uint8_t *data, size_t len)
24236869 2049{
c35734b2
TS		 2050 char buf[1024];
2051 int size;
24236869 2052
5862d195
GH		 2053 vs->client_width = ds_get_width(vs->ds);
2054 vs->client_height = ds_get_height(vs->ds);
2055 vnc_write_u16(vs, vs->client_width);
2056 vnc_write_u16(vs, vs->client_height);
24236869 2057
ca4cca4d 2058 pixel_format_message(vs);
24236869 2059
c35734b2
TS		 2060 if (qemu_name)
2061 size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name);
2062 else
2063 size = snprintf(buf, sizeof(buf), "QEMU");
2064
2065 vnc_write_u32(vs, size);
2066 vnc_write(vs, buf, size);
24236869
FB		 2067 vnc_flush(vs);
2068
4a80dba3 2069 vnc_client_cache_auth(vs);
0d2ed46a 2070 vnc_qmp_event(vs, QEVENT_VNC_INITIALIZED);
4a80dba3 2071
24236869
FB		 2072 vnc_read_when(vs, protocol_client_msg, 1);
2073
2074 return 0;
2075}
2076
5fb6c7a8
AL		 2077void start_client_init(VncState *vs)
2078{
2079 vnc_read_when(vs, protocol_client_init, 1);
2080}
2081
70848515
TS		 2082static void make_challenge(VncState *vs)
2083{
2084 int i;
2085
2086 srand(time(NULL)+getpid()+getpid()*987654+rand());
2087
2088 for (i = 0 ; i < sizeof(vs->challenge) ; i++)
2089 vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0));
2090}
2091
60fe76f3 2092static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len)
70848515 2093{
60fe76f3 2094 unsigned char response[VNC_AUTH_CHALLENGE_SIZE];
70848515 2095 int i, j, pwlen;
60fe76f3 2096 unsigned char key[8];
3c9405a0 2097 time_t now = time(NULL);
70848515 2098
1cd20f8b 2099 if (!vs->vd->password) {
28a76be8 2100 VNC_DEBUG("No password configured on server");
6bffdf0f 2101 goto reject;
70848515 2102 }
3c9405a0
GH		 2103 if (vs->vd->expires < now) {
2104 VNC_DEBUG("Password is expired");
2105 goto reject;
2106 }
70848515
TS		 2107
2108 memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE);
2109
2110 /* Calculate the expected challenge response */
753b4053 2111 pwlen = strlen(vs->vd->password);
70848515 2112 for (i=0; i<sizeof(key); i++)
753b4053 2113 key[i] = i<pwlen ? vs->vd->password[i] : 0;
70848515
TS		 2114 deskey(key, EN0);
2115 for (j = 0; j < VNC_AUTH_CHALLENGE_SIZE; j += 8)
2116 des(response+j, response+j);
2117
2118 /* Compare expected vs actual challenge response */
2119 if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) {
e5bed759 2120 VNC_DEBUG("Client challenge response did not match\n");
6bffdf0f 2121 goto reject;
70848515 2122 } else {
28a76be8
AL		 2123 VNC_DEBUG("Accepting VNC challenge response\n");
2124 vnc_write_u32(vs, 0); /* Accept auth */
2125 vnc_flush(vs);
70848515 2126
5fb6c7a8 2127 start_client_init(vs);
70848515
TS		 2128 }
2129 return 0;
6bffdf0f
GH		 2130
2131reject:
2132 vnc_write_u32(vs, 1); /* Reject auth */
2133 if (vs->minor >= 8) {
2134 static const char err[] = "Authentication failed";
2135 vnc_write_u32(vs, sizeof(err));
2136 vnc_write(vs, err, sizeof(err));
2137 }
2138 vnc_flush(vs);
2139 vnc_client_error(vs);
2140 return 0;
70848515
TS		 2141}
2142
5fb6c7a8 2143void start_auth_vnc(VncState *vs)
70848515
TS		 2144{
2145 make_challenge(vs);
2146 /* Send client a 'random' challenge */
2147 vnc_write(vs, vs->challenge, sizeof(vs->challenge));
2148 vnc_flush(vs);
2149
2150 vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge));
469b15c6
TS		 2151}
2152
2153
60fe76f3 2154static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len)
70848515
TS		 2155{
2156 /* We only advertise 1 auth scheme at a time, so client
2157 * must pick the one we sent. Verify this */
7e7e2ebc 2158 if (data[0] != vs->auth) { /* Reject auth */
1263b7d6 2159 VNC_DEBUG("Reject auth %d because it didn't match advertized\n", (int)data[0]);
70848515
TS		 2160 vnc_write_u32(vs, 1);
2161 if (vs->minor >= 8) {
2162 static const char err[] = "Authentication failed";
2163 vnc_write_u32(vs, sizeof(err));
2164 vnc_write(vs, err, sizeof(err));
2165 }
2166 vnc_client_error(vs);
2167 } else { /* Accept requested auth */
2168 VNC_DEBUG("Client requested auth %d\n", (int)data[0]);
7e7e2ebc 2169 switch (vs->auth) {
70848515
TS		 2170 case VNC_AUTH_NONE:
2171 VNC_DEBUG("Accept auth none\n");
a26c97ad
AZ		 2172 if (vs->minor >= 8) {
2173 vnc_write_u32(vs, 0); /* Accept auth completion */
2174 vnc_flush(vs);
2175 }
5fb6c7a8 2176 start_client_init(vs);
70848515
TS		 2177 break;
2178
2179 case VNC_AUTH_VNC:
2180 VNC_DEBUG("Start VNC auth\n");
5fb6c7a8
AL		 2181 start_auth_vnc(vs);
2182 break;
70848515 2183
eb38c52c 2184#ifdef CONFIG_VNC_TLS
8d5d2d4c 2185 case VNC_AUTH_VENCRYPT:
3a93113a 2186 VNC_DEBUG("Accept VeNCrypt auth\n");
5fb6c7a8
AL		 2187 start_auth_vencrypt(vs);
2188 break;
8d5d2d4c
TS		 2189#endif /* CONFIG_VNC_TLS */
2190
2f9606b3
AL		 2191#ifdef CONFIG_VNC_SASL
2192 case VNC_AUTH_SASL:
2193 VNC_DEBUG("Accept SASL auth\n");
2194 start_auth_sasl(vs);
2195 break;
2196#endif /* CONFIG_VNC_SASL */
2197
70848515 2198 default: /* Should not be possible, but just in case */
7e7e2ebc 2199 VNC_DEBUG("Reject auth %d server code bug\n", vs->auth);
70848515
TS		 2200 vnc_write_u8(vs, 1);
2201 if (vs->minor >= 8) {
2202 static const char err[] = "Authentication failed";
2203 vnc_write_u32(vs, sizeof(err));
2204 vnc_write(vs, err, sizeof(err));
2205 }
2206 vnc_client_error(vs);
2207 }
2208 }
2209 return 0;
2210}
2211
60fe76f3 2212static int protocol_version(VncState *vs, uint8_t *version, size_t len)
24236869
FB		 2213{
2214 char local[13];
24236869
FB		 2215
2216 memcpy(local, version, 12);
2217 local[12] = 0;
2218
70848515 2219 if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) {
28a76be8
AL		 2220 VNC_DEBUG("Malformed protocol version %s\n", local);
2221 vnc_client_error(vs);
2222 return 0;
24236869 2223 }
70848515
TS		 2224 VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor);
2225 if (vs->major != 3 ||
28a76be8
AL		 2226 (vs->minor != 3 &&
2227 vs->minor != 4 &&
2228 vs->minor != 5 &&
2229 vs->minor != 7 &&
2230 vs->minor != 8)) {
2231 VNC_DEBUG("Unsupported client version\n");
2232 vnc_write_u32(vs, VNC_AUTH_INVALID);
2233 vnc_flush(vs);
2234 vnc_client_error(vs);
2235 return 0;
70848515 2236 }
b0566f4f 2237 /* Some broken clients report v3.4 or v3.5, which spec requires to be treated
70848515
TS		 2238 * as equivalent to v3.3 by servers
2239 */
b0566f4f 2240 if (vs->minor == 4 || vs->minor == 5)
28a76be8 2241 vs->minor = 3;
70848515
TS		 2242
2243 if (vs->minor == 3) {
7e7e2ebc 2244 if (vs->auth == VNC_AUTH_NONE) {
70848515 2245 VNC_DEBUG("Tell client auth none\n");
7e7e2ebc 2246 vnc_write_u32(vs, vs->auth);
70848515 2247 vnc_flush(vs);
28a76be8 2248 start_client_init(vs);
7e7e2ebc 2249 } else if (vs->auth == VNC_AUTH_VNC) {
70848515 2250 VNC_DEBUG("Tell client VNC auth\n");
7e7e2ebc 2251 vnc_write_u32(vs, vs->auth);
70848515
TS		 2252 vnc_flush(vs);
2253 start_auth_vnc(vs);
2254 } else {
7e7e2ebc 2255 VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->auth);
70848515
TS		 2256 vnc_write_u32(vs, VNC_AUTH_INVALID);
2257 vnc_flush(vs);
2258 vnc_client_error(vs);
2259 }
2260 } else {
7e7e2ebc 2261 VNC_DEBUG("Telling client we support auth %d\n", vs->auth);
28a76be8 2262 vnc_write_u8(vs, 1); /* num auth */
7e7e2ebc 2263 vnc_write_u8(vs, vs->auth);
28a76be8
AL		 2264 vnc_read_when(vs, protocol_client_auth, 1);
2265 vnc_flush(vs);
70848515 2266 }
24236869
FB		 2267
2268 return 0;
2269}
2270
999342a0
CC		 2271static VncRectStat *vnc_stat_rect(VncDisplay *vd, int x, int y)
2272{
2273 struct VncSurface *vs = &vd->guest;
2274
2275 return &vs->stats[y / VNC_STAT_RECT][x / VNC_STAT_RECT];
2276}
2277
7d964c9d
CC		 2278void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h)
2279{
2280 int i, j;
2281
2282 w = (x + w) / VNC_STAT_RECT;
2283 h = (y + h) / VNC_STAT_RECT;
2284 x /= VNC_STAT_RECT;
2285 y /= VNC_STAT_RECT;
2286
207f328a
CC		 2287 for (j = y; j <= h; j++) {
2288 for (i = x; i <= w; i++) {
7d964c9d
CC		 2289 vs->lossy_rect[j][i] = 1;
2290 }
2291 }
2292}
2293
2294static int vnc_refresh_lossy_rect(VncDisplay *vd, int x, int y)
2295{
2296 VncState *vs;
2297 int sty = y / VNC_STAT_RECT;
2298 int stx = x / VNC_STAT_RECT;
2299 int has_dirty = 0;
2300
2301 y = y / VNC_STAT_RECT * VNC_STAT_RECT;
2302 x = x / VNC_STAT_RECT * VNC_STAT_RECT;
2303
2304 QTAILQ_FOREACH(vs, &vd->clients, next) {
bc2429b9 2305 int j;
7d964c9d
CC		 2306
2307 /* kernel send buffers are full -> refresh later */
2308 if (vs->output.offset) {
2309 continue;
2310 }
2311
2312 if (!vs->lossy_rect[sty][stx]) {
2313 continue;
2314 }
207f328a 2315
7d964c9d
CC		 2316 vs->lossy_rect[sty][stx] = 0;
2317 for (j = 0; j < VNC_STAT_RECT; ++j) {
bc2429b9 2318 bitmap_set(vs->dirty[y + j], x / 16, VNC_STAT_RECT / 16);
7d964c9d
CC		 2319 }
2320 has_dirty++;
2321 }
207f328a 2322
7d964c9d
CC		 2323 return has_dirty;
2324}
2325
2326static int vnc_update_stats(VncDisplay *vd, struct timeval * tv)
999342a0
CC		 2327{
2328 int x, y;
2329 struct timeval res;
7d964c9d 2330 int has_dirty = 0;
999342a0
CC		 2331
2332 for (y = 0; y < vd->guest.ds->height; y += VNC_STAT_RECT) {
2333 for (x = 0; x < vd->guest.ds->width; x += VNC_STAT_RECT) {
2334 VncRectStat *rect = vnc_stat_rect(vd, x, y);
2335
2336 rect->updated = false;
2337 }
2338 }
2339
ad620c29 2340 qemu_timersub(tv, &VNC_REFRESH_STATS, &res);
999342a0
CC		 2341
2342 if (timercmp(&vd->guest.last_freq_check, &res, >)) {
7d964c9d 2343 return has_dirty;
999342a0
CC		 2344 }
2345 vd->guest.last_freq_check = *tv;
2346
2347 for (y = 0; y < vd->guest.ds->height; y += VNC_STAT_RECT) {
2348 for (x = 0; x < vd->guest.ds->width; x += VNC_STAT_RECT) {
2349 VncRectStat *rect= vnc_stat_rect(vd, x, y);
2350 int count = ARRAY_SIZE(rect->times);
2351 struct timeval min, max;
2352
2353 if (!timerisset(&rect->times[count - 1])) {
2354 continue ;
2355 }
2356
2357 max = rect->times[(rect->idx + count - 1) % count];
ad620c29 2358 qemu_timersub(tv, &max, &res);
999342a0
CC		 2359
2360 if (timercmp(&res, &VNC_REFRESH_LOSSY, >)) {
2361 rect->freq = 0;
7d964c9d 2362 has_dirty += vnc_refresh_lossy_rect(vd, x, y);
999342a0
CC		 2363 memset(rect->times, 0, sizeof (rect->times));
2364 continue ;
2365 }
2366
2367 min = rect->times[rect->idx];
2368 max = rect->times[(rect->idx + count - 1) % count];
ad620c29 2369 qemu_timersub(&max, &min, &res);
999342a0
CC		 2370
2371 rect->freq = res.tv_sec + res.tv_usec / 1000000.;
2372 rect->freq /= count;
2373 rect->freq = 1. / rect->freq;
2374 }
2375 }
7d964c9d 2376 return has_dirty;
999342a0
CC		 2377}
2378
2379double vnc_update_freq(VncState *vs, int x, int y, int w, int h)
2380{
2381 int i, j;
2382 double total = 0;
2383 int num = 0;
2384
2385 x = (x / VNC_STAT_RECT) * VNC_STAT_RECT;
2386 y = (y / VNC_STAT_RECT) * VNC_STAT_RECT;
2387
2388 for (j = y; j <= y + h; j += VNC_STAT_RECT) {
2389 for (i = x; i <= x + w; i += VNC_STAT_RECT) {
2390 total += vnc_stat_rect(vs->vd, i, j)->freq;
2391 num++;
2392 }
2393 }
2394
2395 if (num) {
2396 return total / num;
2397 } else {
2398 return 0;
2399 }
2400}
2401
2402static void vnc_rect_updated(VncDisplay *vd, int x, int y, struct timeval * tv)
2403{
2404 VncRectStat *rect;
2405
2406 rect = vnc_stat_rect(vd, x, y);
2407 if (rect->updated) {
2408 return ;
2409 }
2410 rect->times[rect->idx] = *tv;
2411 rect->idx = (rect->idx + 1) % ARRAY_SIZE(rect->times);
2412 rect->updated = true;
2413}
2414
1fc62412
SS		 2415static int vnc_refresh_server_surface(VncDisplay *vd)
2416{
2417 int y;
2418 uint8_t *guest_row;
2419 uint8_t *server_row;
2420 int cmp_bytes;
41b4bef6 2421 VncState *vs;
1fc62412
SS		 2422 int has_dirty = 0;
2423
80e0c8c3 2424 struct timeval tv = { 0, 0 };
999342a0 2425
80e0c8c3
CC		 2426 if (!vd->non_adaptive) {
2427 gettimeofday(&tv, NULL);
2428 has_dirty = vnc_update_stats(vd, &tv);
2429 }
999342a0 2430
1fc62412
SS		 2431 /*
2432 * Walk through the guest dirty map.
2433 * Check and copy modified bits from guest to server surface.
2434 * Update server dirty map.
2435 */
1fc62412
SS		 2436 cmp_bytes = 16 * ds_get_bytes_per_pixel(vd->ds);
2437 guest_row = vd->guest.ds->data;
2438 server_row = vd->server->data;
2439 for (y = 0; y < vd->guest.ds->height; y++) {
23bfe28f 2440 if (!bitmap_empty(vd->guest.dirty[y], VNC_DIRTY_BITS)) {
1fc62412
SS		 2441 int x;
2442 uint8_t *guest_ptr;
2443 uint8_t *server_ptr;
2444
2445 guest_ptr = guest_row;
2446 server_ptr = server_row;
2447
2448 for (x = 0; x < vd->guest.ds->width;
2449 x += 16, guest_ptr += cmp_bytes, server_ptr += cmp_bytes) {
bc2429b9 2450 if (!test_and_clear_bit((x / 16), vd->guest.dirty[y]))
1fc62412 2451 continue;
1fc62412
SS		 2452 if (memcmp(server_ptr, guest_ptr, cmp_bytes) == 0)
2453 continue;
2454 memcpy(server_ptr, guest_ptr, cmp_bytes);
80e0c8c3
CC		 2455 if (!vd->non_adaptive)
2456 vnc_rect_updated(vd, x, y, &tv);
41b4bef6 2457 QTAILQ_FOREACH(vs, &vd->clients, next) {
bc2429b9 2458 set_bit((x / 16), vs->dirty[y]);
1fc62412
SS		 2459 }
2460 has_dirty++;
2461 }
2462 }
2463 guest_row += ds_get_linesize(vd->ds);
2464 server_row += ds_get_linesize(vd->ds);
2465 }
2466 return has_dirty;
2467}
2468
703bc68f
SS		 2469static void vnc_refresh(void *opaque)
2470{
2471 VncDisplay *vd = opaque;
41b4bef6
AS		 2472 VncState *vs, *vn;
2473 int has_dirty, rects = 0;
703bc68f
SS		 2474
2475 vga_hw_update();
2476
bd023f95
CC		 2477 if (vnc_trylock_display(vd)) {
2478 vd->timer_interval = VNC_REFRESH_INTERVAL_BASE;
7bd427d8 2479 qemu_mod_timer(vd->timer, qemu_get_clock_ms(rt_clock) +
bd023f95
CC		 2480 vd->timer_interval);
2481 return;
2482 }
2483
1fc62412 2484 has_dirty = vnc_refresh_server_surface(vd);
bd023f95 2485 vnc_unlock_display(vd);
1fc62412 2486
41b4bef6 2487 QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) {
2430ffe4 2488 rects += vnc_update_client(vs, has_dirty);
6185c578 2489 /* vs might be free()ed here */
703bc68f 2490 }
bd023f95 2491
83755c17
SS		 2492 /* vd->timer could be NULL now if the last client disconnected,
2493 * in this case don't update the timer */
2494 if (vd->timer == NULL)
2495 return;
703bc68f 2496
2430ffe4
SS		 2497 if (has_dirty && rects) {
2498 vd->timer_interval /= 2;
2499 if (vd->timer_interval < VNC_REFRESH_INTERVAL_BASE)
2500 vd->timer_interval = VNC_REFRESH_INTERVAL_BASE;
2501 } else {
2502 vd->timer_interval += VNC_REFRESH_INTERVAL_INC;
2503 if (vd->timer_interval > VNC_REFRESH_INTERVAL_MAX)
2504 vd->timer_interval = VNC_REFRESH_INTERVAL_MAX;
2505 }
7bd427d8 2506 qemu_mod_timer(vd->timer, qemu_get_clock_ms(rt_clock) + vd->timer_interval);
703bc68f
SS		 2507}
2508
2509static void vnc_init_timer(VncDisplay *vd)
2510{
2430ffe4 2511 vd->timer_interval = VNC_REFRESH_INTERVAL_BASE;
41b4bef6 2512 if (vd->timer == NULL && !QTAILQ_EMPTY(&vd->clients)) {
7bd427d8 2513 vd->timer = qemu_new_timer_ms(rt_clock, vnc_refresh, vd);
5db8378a 2514 vnc_dpy_resize(vd->ds);
1fc62412 2515 vnc_refresh(vd);
703bc68f
SS		 2516 }
2517}
2518
2519static void vnc_remove_timer(VncDisplay *vd)
2520{
41b4bef6 2521 if (vd->timer != NULL && QTAILQ_EMPTY(&vd->clients)) {
703bc68f
SS		 2522 qemu_del_timer(vd->timer);
2523 qemu_free_timer(vd->timer);
2524 vd->timer = NULL;
2525 }
2526}
2527
7e7e2ebc 2528static void vnc_connect(VncDisplay *vd, int csock, int skipauth)
3aa3eea3 2529{
7267c094 2530 VncState *vs = g_malloc0(sizeof(VncState));
7d964c9d
CC		 2531 int i;
2532
753b4053 2533 vs->csock = csock;
7e7e2ebc
DB		 2534
2535 if (skipauth) {
2536 vs->auth = VNC_AUTH_NONE;
2537#ifdef CONFIG_VNC_TLS
2538 vs->subauth = VNC_AUTH_INVALID;
2539#endif
2540 } else {
2541 vs->auth = vd->auth;
2542#ifdef CONFIG_VNC_TLS
2543 vs->subauth = vd->subauth;
2544#endif
2545 }
2546
7267c094 2547 vs->lossy_rect = g_malloc0(VNC_STAT_ROWS * sizeof (*vs->lossy_rect));
7d964c9d 2548 for (i = 0; i < VNC_STAT_ROWS; ++i) {
7267c094 2549 vs->lossy_rect[i] = g_malloc0(VNC_STAT_COLS * sizeof (uint8_t));
7d964c9d 2550 }
753b4053
AL		 2551
2552 VNC_DEBUG("New client on socket %d\n", csock);
7d957bd8 2553 dcl->idle = 0;
3aa3eea3
AZ		 2554 socket_set_nonblock(vs->csock);
2555 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
753b4053 2556
4a80dba3 2557 vnc_client_cache_addr(vs);
586153d9 2558 vnc_qmp_event(vs, QEVENT_VNC_CONNECTED);
4a80dba3 2559
753b4053
AL		 2560 vs->vd = vd;
2561 vs->ds = vd->ds;
753b4053
AL		 2562 vs->last_x = -1;
2563 vs->last_y = -1;
2564
2565 vs->as.freq = 44100;
2566 vs->as.nchannels = 2;
2567 vs->as.fmt = AUD_FMT_S16;
2568 vs->as.endianness = 0;
2569
bd023f95
CC		 2570#ifdef CONFIG_VNC_THREAD
2571 qemu_mutex_init(&vs->output_mutex);
2572#endif
2573
41b4bef6 2574 QTAILQ_INSERT_HEAD(&vd->clients, vs, next);
1fc62412
SS		 2575
2576 vga_hw_update();
2577
3aa3eea3
AZ		 2578 vnc_write(vs, "RFB 003.008\n", 12);
2579 vnc_flush(vs);
2580 vnc_read_when(vs, protocol_version, 12);
53762ddb 2581 reset_keys(vs);
3a0558b5
GH		 2582 if (vs->vd->lock_key_sync)
2583 vs->led = qemu_add_led_event_handler(kbd_leds, vs);
753b4053 2584
37c34d9d
AL		 2585 vs->mouse_mode_notifier.notify = check_pointer_type_change;
2586 qemu_add_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
2587
703bc68f 2588 vnc_init_timer(vd);
1fc62412 2589
198a0039 2590 /* vs might be free()ed here */
3aa3eea3
AZ		 2591}
2592
24236869
FB		 2593static void vnc_listen_read(void *opaque)
2594{
753b4053 2595 VncDisplay *vs = opaque;
24236869
FB		 2596 struct sockaddr_in addr;
2597 socklen_t addrlen = sizeof(addr);
2598
9f60ad50
AZ		 2599 /* Catch-up */
2600 vga_hw_update();
2601
40ff6d7e 2602 int csock = qemu_accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
753b4053 2603 if (csock != -1) {
7e7e2ebc 2604 vnc_connect(vs, csock, 0);
24236869
FB		 2605 }
2606}
2607
71cab5ca 2608void vnc_display_init(DisplayState *ds)
24236869 2609{
7267c094 2610 VncDisplay *vs = g_malloc0(sizeof(*vs));
24236869 2611
7267c094 2612 dcl = g_malloc0(sizeof(DisplayChangeListener));
24236869
FB		 2613
2614 ds->opaque = vs;
7d957bd8 2615 dcl->idle = 1;
753b4053 2616 vnc_display = vs;
24236869
FB		 2617
2618 vs->lsock = -1;
24236869
FB		 2619
2620 vs->ds = ds;
41b4bef6 2621 QTAILQ_INIT(&vs->clients);
3c9405a0 2622 vs->expires = TIME_MAX;
24236869 2623
9ca313aa 2624 if (keyboard_layout)
0483755a 2625 vs->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
9ca313aa 2626 else
0483755a 2627 vs->kbd_layout = init_keyboard_layout(name2keysym, "en-us");
24236869 2628
24236869 2629 if (!vs->kbd_layout)
28a76be8 2630 exit(1);
24236869 2631
bd023f95
CC		 2632#ifdef CONFIG_VNC_THREAD
2633 qemu_mutex_init(&vs->mutex);
2634 vnc_start_worker_thread();
2635#endif
2636
753b4053 2637 dcl->dpy_copy = vnc_dpy_copy;
7d957bd8
AL		 2638 dcl->dpy_update = vnc_dpy_update;
2639 dcl->dpy_resize = vnc_dpy_resize;
2640 dcl->dpy_setdata = vnc_dpy_setdata;
7d957bd8 2641 register_displaychangelistener(ds, dcl);
d467b679
GH		 2642 ds->mouse_set = vnc_mouse_set;
2643 ds->cursor_define = vnc_dpy_cursor_define;
71cab5ca
TS		 2644}
2645
6f43024c 2646
71cab5ca
TS		 2647void vnc_display_close(DisplayState *ds)
2648{
753b4053 2649 VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
71cab5ca 2650
452b4d88
AL		 2651 if (!vs)
2652 return;
71cab5ca 2653 if (vs->display) {
7267c094 2654 g_free(vs->display);
28a76be8 2655 vs->display = NULL;
71cab5ca
TS		 2656 }
2657 if (vs->lsock != -1) {
28a76be8
AL		 2658 qemu_set_fd_handler2(vs->lsock, NULL, NULL, NULL, NULL);
2659 close(vs->lsock);
2660 vs->lsock = -1;
71cab5ca 2661 }
70848515 2662 vs->auth = VNC_AUTH_INVALID;
eb38c52c 2663#ifdef CONFIG_VNC_TLS
8d5d2d4c 2664 vs->subauth = VNC_AUTH_INVALID;
5fb6c7a8 2665 vs->tls.x509verify = 0;
8d5d2d4c 2666#endif
70848515
TS		 2667}
2668
1cd20f8b
AL		 2669int vnc_display_disable_login(DisplayState *ds)
2670{
2671 VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
2672
2673 if (!vs) {
2674 return -1;
2675 }
2676
2677 if (vs->password) {
7267c094 2678 g_free(vs->password);
1cd20f8b
AL		 2679 }
2680
2681 vs->password = NULL;
2682 vs->auth = VNC_AUTH_VNC;
2683
2684 return 0;
2685}
2686
70848515
TS		 2687int vnc_display_password(DisplayState *ds, const char *password)
2688{
821601ea 2689 int ret = 0;
753b4053 2690 VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
70848515 2691
7ef92331 2692 if (!vs) {
821601ea
JS		 2693 ret = -EINVAL;
2694 goto out;
7ef92331
ZA		 2695 }
2696
1cd20f8b
AL		 2697 if (!password) {
2698 /* This is not the intention of this interface but err on the side
2699 of being safe */
821601ea
JS		 2700 ret = vnc_display_disable_login(ds);
2701 goto out;
1cd20f8b
AL		 2702 }
2703
70848515 2704 if (vs->password) {
7267c094 2705 g_free(vs->password);
28a76be8 2706 vs->password = NULL;
70848515 2707 }
7267c094 2708 vs->password = g_strdup(password);
1cd20f8b 2709 vs->auth = VNC_AUTH_VNC;
821601ea
JS		 2710out:
2711 if (ret != 0) {
2712 qerror_report(QERR_SET_PASSWD_FAILED);
2713 }
2714 return ret;
71cab5ca
TS		 2715}
2716
3c9405a0
GH		 2717int vnc_display_pw_expire(DisplayState *ds, time_t expires)
2718{
2719 VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
2720
2721 vs->expires = expires;
2722 return 0;
2723}
2724
f92f8afe
AL		 2725char *vnc_display_local_addr(DisplayState *ds)
2726{
2727 VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
2728
2729 return vnc_socket_local_addr("%s:%s", vs->lsock);
2730}
2731
70848515 2732int vnc_display_open(DisplayState *ds, const char *display)
71cab5ca 2733{
753b4053 2734 VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
70848515
TS		 2735 const char *options;
2736 int password = 0;
3aa3eea3 2737 int reverse = 0;
eb38c52c 2738#ifdef CONFIG_VNC_TLS
3a702699 2739 int tls = 0, x509 = 0;
8d5d2d4c 2740#endif
2f9606b3
AL		 2741#ifdef CONFIG_VNC_SASL
2742 int sasl = 0;
2743 int saslErr;
2744#endif
2ded6ad7 2745#if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL)
76655d6d 2746 int acl = 0;
2ded6ad7 2747#endif
3a0558b5 2748 int lock_key_sync = 1;
71cab5ca 2749
753b4053 2750 if (!vnc_display)
452b4d88 2751 return -1;
71cab5ca 2752 vnc_display_close(ds);
70848515 2753 if (strcmp(display, "none") == 0)
28a76be8 2754 return 0;
24236869 2755
70848515 2756 if (!(vs->display = strdup(display)))
28a76be8 2757 return -1;
70848515
TS		 2758
2759 options = display;
2760 while ((options = strchr(options, ','))) {
28a76be8
AL		 2761 options++;
2762 if (strncmp(options, "password", 8) == 0) {
2763 password = 1; /* Require password auth */
2764 } else if (strncmp(options, "reverse", 7) == 0) {
2765 reverse = 1;
cee8e6ad 2766 } else if (strncmp(options, "no-lock-key-sync", 16) == 0) {
3a0558b5 2767 lock_key_sync = 0;
2f9606b3 2768#ifdef CONFIG_VNC_SASL
28a76be8
AL		 2769 } else if (strncmp(options, "sasl", 4) == 0) {
2770 sasl = 1; /* Require SASL auth */
2f9606b3 2771#endif
eb38c52c 2772#ifdef CONFIG_VNC_TLS
28a76be8
AL		 2773 } else if (strncmp(options, "tls", 3) == 0) {
2774 tls = 1; /* Require TLS */
2775 } else if (strncmp(options, "x509", 4) == 0) {
2776 char *start, *end;
2777 x509 = 1; /* Require x509 certificates */
2778 if (strncmp(options, "x509verify", 10) == 0)
2779 vs->tls.x509verify = 1; /* ...and verify client certs */
2780
2781 /* Now check for 'x509=/some/path' postfix
2782 * and use that to setup x509 certificate/key paths */
2783 start = strchr(options, '=');
2784 end = strchr(options, ',');
2785 if (start && (!end || (start < end))) {
2786 int len = end ? end-(start+1) : strlen(start+1);
7267c094 2787 char *path = g_strndup(start + 1, len);
28a76be8
AL		 2788
2789 VNC_DEBUG("Trying certificate path '%s'\n", path);
2790 if (vnc_tls_set_x509_creds_dir(vs, path) < 0) {
2791 fprintf(stderr, "Failed to find x509 certificates/keys in %s\n", path);
7267c094
AL		 2792 g_free(path);
2793 g_free(vs->display);
28a76be8
AL		 2794 vs->display = NULL;
2795 return -1;
2796 }
7267c094 2797 g_free(path);
28a76be8
AL		 2798 } else {
2799 fprintf(stderr, "No certificate path provided\n");
7267c094 2800 g_free(vs->display);
28a76be8
AL		 2801 vs->display = NULL;
2802 return -1;
2803 }
8d5d2d4c 2804#endif
2ded6ad7 2805#if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL)
28a76be8
AL		 2806 } else if (strncmp(options, "acl", 3) == 0) {
2807 acl = 1;
2ded6ad7 2808#endif
6f9c78c1
CC		 2809 } else if (strncmp(options, "lossy", 5) == 0) {
2810 vs->lossy = true;
80e0c8c3
CC		 2811 } else if (strncmp(options, "non-adapative", 13) == 0) {
2812 vs->non_adaptive = true;
28a76be8 2813 }
70848515
TS		 2814 }
2815
76655d6d
AL		 2816#ifdef CONFIG_VNC_TLS
2817 if (acl && x509 && vs->tls.x509verify) {
28a76be8
AL		 2818 if (!(vs->tls.acl = qemu_acl_init("vnc.x509dname"))) {
2819 fprintf(stderr, "Failed to create x509 dname ACL\n");
2820 exit(1);
2821 }
76655d6d
AL		 2822 }
2823#endif
2824#ifdef CONFIG_VNC_SASL
2825 if (acl && sasl) {
28a76be8
AL		 2826 if (!(vs->sasl.acl = qemu_acl_init("vnc.username"))) {
2827 fprintf(stderr, "Failed to create username ACL\n");
2828 exit(1);
2829 }
76655d6d
AL		 2830 }
2831#endif
2832
2f9606b3
AL		 2833 /*
2834 * Combinations we support here:
2835 *
2836 * - no-auth (clear text, no auth)
2837 * - password (clear text, weak auth)
2838 * - sasl (encrypt, good auth *IF* using Kerberos via GSSAPI)
2839 * - tls (encrypt, weak anonymous creds, no auth)
2840 * - tls + password (encrypt, weak anonymous creds, weak auth)
2841 * - tls + sasl (encrypt, weak anonymous creds, good auth)
2842 * - tls + x509 (encrypt, good x509 creds, no auth)
2843 * - tls + x509 + password (encrypt, good x509 creds, weak auth)
2844 * - tls + x509 + sasl (encrypt, good x509 creds, good auth)
2845 *
2846 * NB1. TLS is a stackable auth scheme.
2847 * NB2. the x509 schemes have option to validate a client cert dname
2848 */
70848515 2849 if (password) {
eb38c52c 2850#ifdef CONFIG_VNC_TLS
28a76be8
AL		 2851 if (tls) {
2852 vs->auth = VNC_AUTH_VENCRYPT;
2853 if (x509) {
2854 VNC_DEBUG("Initializing VNC server with x509 password auth\n");
2855 vs->subauth = VNC_AUTH_VENCRYPT_X509VNC;
2856 } else {
2857 VNC_DEBUG("Initializing VNC server with TLS password auth\n");
2858 vs->subauth = VNC_AUTH_VENCRYPT_TLSVNC;
2859 }
2860 } else {
2f9606b3 2861#endif /* CONFIG_VNC_TLS */
28a76be8
AL		 2862 VNC_DEBUG("Initializing VNC server with password auth\n");
2863 vs->auth = VNC_AUTH_VNC;
eb38c52c 2864#ifdef CONFIG_VNC_TLS
28a76be8
AL		 2865 vs->subauth = VNC_AUTH_INVALID;
2866 }
2f9606b3
AL		 2867#endif /* CONFIG_VNC_TLS */
2868#ifdef CONFIG_VNC_SASL
2869 } else if (sasl) {
2870#ifdef CONFIG_VNC_TLS
2871 if (tls) {
2872 vs->auth = VNC_AUTH_VENCRYPT;
2873 if (x509) {
28a76be8 2874 VNC_DEBUG("Initializing VNC server with x509 SASL auth\n");
2f9606b3
AL		 2875 vs->subauth = VNC_AUTH_VENCRYPT_X509SASL;
2876 } else {
28a76be8 2877 VNC_DEBUG("Initializing VNC server with TLS SASL auth\n");
2f9606b3
AL		 2878 vs->subauth = VNC_AUTH_VENCRYPT_TLSSASL;
2879 }
2880 } else {
2881#endif /* CONFIG_VNC_TLS */
28a76be8 2882 VNC_DEBUG("Initializing VNC server with SASL auth\n");
2f9606b3
AL		 2883 vs->auth = VNC_AUTH_SASL;
2884#ifdef CONFIG_VNC_TLS
2885 vs->subauth = VNC_AUTH_INVALID;
2886 }
2887#endif /* CONFIG_VNC_TLS */
2888#endif /* CONFIG_VNC_SASL */
70848515 2889 } else {
eb38c52c 2890#ifdef CONFIG_VNC_TLS
28a76be8
AL		 2891 if (tls) {
2892 vs->auth = VNC_AUTH_VENCRYPT;
2893 if (x509) {
2894 VNC_DEBUG("Initializing VNC server with x509 no auth\n");
2895 vs->subauth = VNC_AUTH_VENCRYPT_X509NONE;
2896 } else {
2897 VNC_DEBUG("Initializing VNC server with TLS no auth\n");
2898 vs->subauth = VNC_AUTH_VENCRYPT_TLSNONE;
2899 }
2900 } else {
8d5d2d4c 2901#endif
28a76be8
AL		 2902 VNC_DEBUG("Initializing VNC server with no auth\n");
2903 vs->auth = VNC_AUTH_NONE;
eb38c52c 2904#ifdef CONFIG_VNC_TLS
28a76be8
AL		 2905 vs->subauth = VNC_AUTH_INVALID;
2906 }
8d5d2d4c 2907#endif
70848515 2908 }
24236869 2909
2f9606b3
AL		 2910#ifdef CONFIG_VNC_SASL
2911 if ((saslErr = sasl_server_init(NULL, "qemu")) != SASL_OK) {
2912 fprintf(stderr, "Failed to initialize SASL auth %s",
2913 sasl_errstring(saslErr, NULL, NULL));
ae878b17 2914 g_free(vs->display);
2f9606b3
AL		 2915 vs->display = NULL;
2916 return -1;
2917 }
2918#endif
3a0558b5 2919 vs->lock_key_sync = lock_key_sync;
2f9606b3 2920
3aa3eea3 2921 if (reverse) {
9712ecaf
AL		 2922 /* connect to viewer */
2923 if (strncmp(display, "unix:", 5) == 0)
2924 vs->lsock = unix_connect(display+5);
2925 else
2926 vs->lsock = inet_connect(display, SOCK_STREAM);
2927 if (-1 == vs->lsock) {
ae878b17 2928 g_free(vs->display);
3aa3eea3
AZ		 2929 vs->display = NULL;
2930 return -1;
2931 } else {
753b4053 2932 int csock = vs->lsock;
3aa3eea3 2933 vs->lsock = -1;
7e7e2ebc 2934 vnc_connect(vs, csock, 0);
3aa3eea3 2935 }
9712ecaf 2936 return 0;
24236869 2937
9712ecaf
AL		 2938 } else {
2939 /* listen for connects */
2940 char *dpy;
7267c094 2941 dpy = g_malloc(256);
9712ecaf 2942 if (strncmp(display, "unix:", 5) == 0) {
bc575e95 2943 pstrcpy(dpy, 256, "unix:");
4a55bfdf 2944 vs->lsock = unix_listen(display+5, dpy+5, 256-5);
9712ecaf
AL		 2945 } else {
2946 vs->lsock = inet_listen(display, dpy, 256, SOCK_STREAM, 5900);
2947 }
2948 if (-1 == vs->lsock) {
ae878b17 2949 g_free(dpy);
d0513623 2950 return -1;
9712ecaf 2951 } else {
ae878b17 2952 g_free(vs->display);
9712ecaf
AL		 2953 vs->display = dpy;
2954 }
24236869 2955 }
753b4053 2956 return qemu_set_fd_handler2(vs->lsock, NULL, vnc_listen_read, NULL, vs);
24236869 2957}
13661089
DB		 2958
2959void vnc_display_add_client(DisplayState *ds, int csock, int skipauth)
2960{
2961 VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
2962
2963 return vnc_connect(vs, csock, skipauth);
2964}
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