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vnc: Add SCROLL lock key to kbd_leds
[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"
9c17d615 29#include "sysemu/sysemu.h"
1de7afc9
PB		 30#include "qemu/sockets.h"
31#include "qemu/timer.h"
32#include "qemu/acl.h"
7b1b5d19 33#include "qapi/qmp/types.h"
2b54aa87 34#include "qmp-commands.h"
1de7afc9 35#include "qemu/osdep.h"
24236869 36
0f7b2864 37#define VNC_REFRESH_INTERVAL_BASE GUI_REFRESH_INTERVAL_DEFAULT
2430ffe4 38#define VNC_REFRESH_INTERVAL_INC 50
0f7b2864 39#define VNC_REFRESH_INTERVAL_MAX GUI_REFRESH_INTERVAL_IDLE
999342a0
CC		 40static const struct timeval VNC_REFRESH_STATS = { 0, 500000 };
41static const struct timeval VNC_REFRESH_LOSSY = { 2, 0 };
24236869
FB		 42
43#include "vnc_keysym.h"
70848515
TS		 44#include "d3des.h"
45
753b4053 46static VncDisplay *vnc_display; /* needed for info vnc */
a9ce8590 47
d467b679 48static int vnc_cursor_define(VncState *vs);
7bc9318b 49static void vnc_release_modifiers(VncState *vs);
d467b679 50
8cf36489
GH		 51static void vnc_set_share_mode(VncState *vs, VncShareMode mode)
52{
53#ifdef _VNC_DEBUG
54 static const char *mn[] = {
55 [0] = "undefined",
56 [VNC_SHARE_MODE_CONNECTING] = "connecting",
57 [VNC_SHARE_MODE_SHARED] = "shared",
58 [VNC_SHARE_MODE_EXCLUSIVE] = "exclusive",
59 [VNC_SHARE_MODE_DISCONNECTED] = "disconnected",
60 };
61 fprintf(stderr, "%s/%d: %s -> %s\n", __func__,
62 vs->csock, mn[vs->share_mode], mn[mode]);
63#endif
64
65 if (vs->share_mode == VNC_SHARE_MODE_EXCLUSIVE) {
66 vs->vd->num_exclusive--;
67 }
68 vs->share_mode = mode;
69 if (vs->share_mode == VNC_SHARE_MODE_EXCLUSIVE) {
70 vs->vd->num_exclusive++;
71 }
72}
73
1ff7df1a
AL		 74static char *addr_to_string(const char *format,
75 struct sockaddr_storage *sa,
76 socklen_t salen) {
77 char *addr;
78 char host[NI_MAXHOST];
79 char serv[NI_MAXSERV];
80 int err;
457772e6 81 size_t addrlen;
1ff7df1a
AL		 82
83 if ((err = getnameinfo((struct sockaddr *)sa, salen,
84 host, sizeof(host),
85 serv, sizeof(serv),
86 NI_NUMERICHOST | NI_NUMERICSERV)) != 0) {
87 VNC_DEBUG("Cannot resolve address %d: %s\n",
88 err, gai_strerror(err));
89 return NULL;
90 }
91
457772e6 92 /* Enough for the existing format + the 2 vars we're
f425c278 93 * substituting in. */
457772e6 94 addrlen = strlen(format) + strlen(host) + strlen(serv);
7267c094 95 addr = g_malloc(addrlen + 1);
457772e6
AL		 96 snprintf(addr, addrlen, format, host, serv);
97 addr[addrlen] = '\0';
1ff7df1a
AL		 98
99 return addr;
100}
101
2f9606b3
AL		 102
103char *vnc_socket_local_addr(const char *format, int fd) {
1ff7df1a
AL		 104 struct sockaddr_storage sa;
105 socklen_t salen;
106
107 salen = sizeof(sa);
108 if (getsockname(fd, (struct sockaddr*)&sa, &salen) < 0)
109 return NULL;
110
111 return addr_to_string(format, &sa, salen);
112}
113
2f9606b3 114char *vnc_socket_remote_addr(const char *format, int fd) {
1ff7df1a
AL		 115 struct sockaddr_storage sa;
116 socklen_t salen;
117
118 salen = sizeof(sa);
119 if (getpeername(fd, (struct sockaddr*)&sa, &salen) < 0)
120 return NULL;
121
122 return addr_to_string(format, &sa, salen);
123}
124
d96fd29c
LC		 125static int put_addr_qdict(QDict *qdict, struct sockaddr_storage *sa,
126 socklen_t salen)
127{
128 char host[NI_MAXHOST];
129 char serv[NI_MAXSERV];
130 int err;
131
132 if ((err = getnameinfo((struct sockaddr *)sa, salen,
133 host, sizeof(host),
134 serv, sizeof(serv),
135 NI_NUMERICHOST | NI_NUMERICSERV)) != 0) {
136 VNC_DEBUG("Cannot resolve address %d: %s\n",
137 err, gai_strerror(err));
138 return -1;
139 }
140
141 qdict_put(qdict, "host", qstring_from_str(host));
142 qdict_put(qdict, "service", qstring_from_str(serv));
dc0d4efc 143 qdict_put(qdict, "family",qstring_from_str(inet_strfamily(sa->ss_family)));
d96fd29c
LC		 144
145 return 0;
146}
147
a7789382 148static int vnc_server_addr_put(QDict *qdict, int fd)
d96fd29c
LC		 149{
150 struct sockaddr_storage sa;
151 socklen_t salen;
152
153 salen = sizeof(sa);
154 if (getsockname(fd, (struct sockaddr*)&sa, &salen) < 0) {
155 return -1;
156 }
157
158 return put_addr_qdict(qdict, &sa, salen);
159}
160
161static int vnc_qdict_remote_addr(QDict *qdict, int fd)
162{
163 struct sockaddr_storage sa;
164 socklen_t salen;
165
166 salen = sizeof(sa);
167 if (getpeername(fd, (struct sockaddr*)&sa, &salen) < 0) {
168 return -1;
169 }
170
171 return put_addr_qdict(qdict, &sa, salen);
172}
173
1ff7df1a
AL		 174static const char *vnc_auth_name(VncDisplay *vd) {
175 switch (vd->auth) {
176 case VNC_AUTH_INVALID:
177 return "invalid";
178 case VNC_AUTH_NONE:
179 return "none";
180 case VNC_AUTH_VNC:
181 return "vnc";
182 case VNC_AUTH_RA2:
183 return "ra2";
184 case VNC_AUTH_RA2NE:
185 return "ra2ne";
186 case VNC_AUTH_TIGHT:
187 return "tight";
188 case VNC_AUTH_ULTRA:
189 return "ultra";
190 case VNC_AUTH_TLS:
191 return "tls";
192 case VNC_AUTH_VENCRYPT:
193#ifdef CONFIG_VNC_TLS
194 switch (vd->subauth) {
195 case VNC_AUTH_VENCRYPT_PLAIN:
196 return "vencrypt+plain";
197 case VNC_AUTH_VENCRYPT_TLSNONE:
198 return "vencrypt+tls+none";
199 case VNC_AUTH_VENCRYPT_TLSVNC:
200 return "vencrypt+tls+vnc";
201 case VNC_AUTH_VENCRYPT_TLSPLAIN:
202 return "vencrypt+tls+plain";
203 case VNC_AUTH_VENCRYPT_X509NONE:
204 return "vencrypt+x509+none";
205 case VNC_AUTH_VENCRYPT_X509VNC:
206 return "vencrypt+x509+vnc";
207 case VNC_AUTH_VENCRYPT_X509PLAIN:
208 return "vencrypt+x509+plain";
28a76be8
AL		 209 case VNC_AUTH_VENCRYPT_TLSSASL:
210 return "vencrypt+tls+sasl";
211 case VNC_AUTH_VENCRYPT_X509SASL:
212 return "vencrypt+x509+sasl";
1ff7df1a
AL		 213 default:
214 return "vencrypt";
215 }
216#else
217 return "vencrypt";
218#endif
2f9606b3 219 case VNC_AUTH_SASL:
28a76be8 220 return "sasl";
1ff7df1a
AL		 221 }
222 return "unknown";
223}
224
a7789382
LC		 225static int vnc_server_info_put(QDict *qdict)
226{
227 if (vnc_server_addr_put(qdict, vnc_display->lsock) < 0) {
228 return -1;
229 }
230
231 qdict_put(qdict, "auth", qstring_from_str(vnc_auth_name(vnc_display)));
232 return 0;
233}
234
4a80dba3 235static void vnc_client_cache_auth(VncState *client)
1ff7df1a 236{
2ded6ad7 237#if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL)
d96fd29c 238 QDict *qdict;
2ded6ad7 239#endif
1ff7df1a 240
4a80dba3
LC		 241 if (!client->info) {
242 return;
d96fd29c 243 }
1263b7d6 244
2ded6ad7 245#if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL)
4a80dba3 246 qdict = qobject_to_qdict(client->info);
2ded6ad7 247#endif
4a80dba3 248
1263b7d6
AL		 249#ifdef CONFIG_VNC_TLS
250 if (client->tls.session &&
d96fd29c
LC		 251 client->tls.dname) {
252 qdict_put(qdict, "x509_dname", qstring_from_str(client->tls.dname));
253 }
1263b7d6
AL		 254#endif
255#ifdef CONFIG_VNC_SASL
256 if (client->sasl.conn &&
d96fd29c 257 client->sasl.username) {
76825067
LC		 258 qdict_put(qdict, "sasl_username",
259 qstring_from_str(client->sasl.username));
d96fd29c 260 }
1263b7d6 261#endif
4a80dba3 262}
d96fd29c 263
4a80dba3
LC		 264static void vnc_client_cache_addr(VncState *client)
265{
266 QDict *qdict;
267
268 qdict = qdict_new();
269 if (vnc_qdict_remote_addr(qdict, client->csock) < 0) {
270 QDECREF(qdict);
271 /* XXX: how to report the error? */
272 return;
273 }
274
275 client->info = QOBJECT(qdict);
1ff7df1a
AL		 276}
277
586153d9
LC		 278static void vnc_qmp_event(VncState *vs, MonitorEvent event)
279{
280 QDict *server;
281 QObject *data;
282
283 if (!vs->info) {
284 return;
285 }
286
287 server = qdict_new();
288 if (vnc_server_info_put(server) < 0) {
289 QDECREF(server);
290 return;
291 }
292
293 data = qobject_from_jsonf("{ 'client': %p, 'server': %p }",
294 vs->info, QOBJECT(server));
295
296 monitor_protocol_event(event, data);
297
298 qobject_incref(vs->info);
299 qobject_decref(data);
300}
301
2b54aa87 302static VncClientInfo *qmp_query_vnc_client(const VncState *client)
a9ce8590 303{
2b54aa87
LC		 304 struct sockaddr_storage sa;
305 socklen_t salen = sizeof(sa);
306 char host[NI_MAXHOST];
307 char serv[NI_MAXSERV];
308 VncClientInfo *info;
309
310 if (getpeername(client->csock, (struct sockaddr *)&sa, &salen) < 0) {
311 return NULL;
312 }
313
314 if (getnameinfo((struct sockaddr *)&sa, salen,
315 host, sizeof(host),
316 serv, sizeof(serv),
317 NI_NUMERICHOST | NI_NUMERICSERV) < 0) {
318 return NULL;
319 }
d96fd29c 320
2b54aa87
LC		 321 info = g_malloc0(sizeof(*info));
322 info->host = g_strdup(host);
323 info->service = g_strdup(serv);
324 info->family = g_strdup(inet_strfamily(sa.ss_family));
d96fd29c
LC		 325
326#ifdef CONFIG_VNC_TLS
2b54aa87
LC		 327 if (client->tls.session && client->tls.dname) {
328 info->has_x509_dname = true;
329 info->x509_dname = g_strdup(client->tls.dname);
330 }
d96fd29c
LC		 331#endif
332#ifdef CONFIG_VNC_SASL
2b54aa87
LC		 333 if (client->sasl.conn && client->sasl.username) {
334 info->has_sasl_username = true;
335 info->sasl_username = g_strdup(client->sasl.username);
d96fd29c 336 }
2b54aa87 337#endif
1ff7df1a 338
2b54aa87 339 return info;
d96fd29c 340}
1ff7df1a 341
2b54aa87 342VncInfo *qmp_query_vnc(Error **errp)
d96fd29c 343{
2b54aa87
LC		 344 VncInfo *info = g_malloc0(sizeof(*info));
345
d96fd29c 346 if (vnc_display == NULL || vnc_display->display == NULL) {
2b54aa87 347 info->enabled = false;
d96fd29c 348 } else {
2b54aa87
LC		 349 VncClientInfoList *cur_item = NULL;
350 struct sockaddr_storage sa;
351 socklen_t salen = sizeof(sa);
352 char host[NI_MAXHOST];
353 char serv[NI_MAXSERV];
41b4bef6 354 VncState *client;
1ff7df1a 355
2b54aa87
LC		 356 info->enabled = true;
357
358 /* for compatibility with the original command */
359 info->has_clients = true;
360
41b4bef6 361 QTAILQ_FOREACH(client, &vnc_display->clients, next) {
2b54aa87
LC		 362 VncClientInfoList *cinfo = g_malloc0(sizeof(*info));
363 cinfo->value = qmp_query_vnc_client(client);
364
365 /* XXX: waiting for the qapi to support GSList */
366 if (!cur_item) {
367 info->clients = cur_item = cinfo;
368 } else {
369 cur_item->next = cinfo;
370 cur_item = cinfo;
1ff7df1a 371 }
d96fd29c
LC		 372 }
373
417b0b88
PB		 374 if (vnc_display->lsock == -1) {
375 return info;
376 }
377
2b54aa87
LC		 378 if (getsockname(vnc_display->lsock, (struct sockaddr *)&sa,
379 &salen) == -1) {
380 error_set(errp, QERR_UNDEFINED_ERROR);
381 goto out_error;
382 }
d96fd29c 383
2b54aa87
LC		 384 if (getnameinfo((struct sockaddr *)&sa, salen,
385 host, sizeof(host),
386 serv, sizeof(serv),
387 NI_NUMERICHOST | NI_NUMERICSERV) < 0) {
388 error_set(errp, QERR_UNDEFINED_ERROR);
389 goto out_error;
1ff7df1a 390 }
2b54aa87
LC		 391
392 info->has_host = true;
393 info->host = g_strdup(host);
394
395 info->has_service = true;
396 info->service = g_strdup(serv);
397
398 info->has_family = true;
399 info->family = g_strdup(inet_strfamily(sa.ss_family));
400
401 info->has_auth = true;
402 info->auth = g_strdup(vnc_auth_name(vnc_display));
a9ce8590 403 }
2b54aa87
LC		 404
405 return info;
406
407out_error:
408 qapi_free_VncInfo(info);
409 return NULL;
a9ce8590
FB		 410}
411
24236869
FB		 412/* TODO
413 1) Get the queue working for IO.
414 2) there is some weirdness when using the -S option (the screen is grey
415 and not totally invalidated
416 3) resolutions > 1024
417*/
418
2430ffe4 419static int vnc_update_client(VncState *vs, int has_dirty);
bd023f95 420static int vnc_update_client_sync(VncState *vs, int has_dirty);
198a0039 421static void vnc_disconnect_start(VncState *vs);
24236869 422
753b4053 423static void vnc_colordepth(VncState *vs);
1fc62412
SS		 424static void framebuffer_update_request(VncState *vs, int incremental,
425 int x_position, int y_position,
426 int w, int h);
0f7b2864 427static void vnc_refresh(DisplayChangeListener *dcl);
1fc62412 428static int vnc_refresh_server_surface(VncDisplay *vd);
7eac3a87 429
7c20b4a3 430static void vnc_dpy_update(DisplayChangeListener *dcl,
7c20b4a3 431 int x, int y, int w, int h)
24236869 432{
24236869 433 int i;
21ef45d7 434 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
1fc62412 435 struct VncSurface *s = &vd->guest;
d39fa6d8
GH		 436 int width = surface_width(vd->ds);
437 int height = surface_height(vd->ds);
24236869
FB		 438
439 h += y;
440
0486e8a7
AZ		 441 /* round x down to ensure the loop only spans one 16-pixel block per,
442 iteration. otherwise, if (x % 16) != 0, the last iteration may span
443 two 16-pixel blocks but we only mark the first as dirty
444 */
445 w += (x % 16);
446 x -= (x % 16);
447
9f64916d
GH		 448 x = MIN(x, width);
449 y = MIN(y, height);
450 w = MIN(x + w, width) - x;
451 h = MIN(h, height);
788abf8e 452
24236869 453 for (; y < h; y++)
28a76be8 454 for (i = 0; i < w; i += 16)
bc2429b9 455 set_bit((x + i) / 16, s->dirty[y]);
24236869
FB		 456}
457
70a4568f
CC		 458void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
459 int32_t encoding)
24236869
FB		 460{
461 vnc_write_u16(vs, x);
462 vnc_write_u16(vs, y);
463 vnc_write_u16(vs, w);
464 vnc_write_u16(vs, h);
465
466 vnc_write_s32(vs, encoding);
467}
468
2f9606b3 469void buffer_reserve(Buffer *buffer, size_t len)
89064286
AL		 470{
471 if ((buffer->capacity - buffer->offset) < len) {
28a76be8 472 buffer->capacity += (len + 1024);
7267c094 473 buffer->buffer = g_realloc(buffer->buffer, buffer->capacity);
28a76be8
AL		 474 if (buffer->buffer == NULL) {
475 fprintf(stderr, "vnc: out of memory\n");
476 exit(1);
477 }
89064286
AL		 478 }
479}
480
71a8cdec 481static int buffer_empty(Buffer *buffer)
89064286
AL		 482{
483 return buffer->offset == 0;
484}
485
7536ee4b 486uint8_t *buffer_end(Buffer *buffer)
89064286
AL		 487{
488 return buffer->buffer + buffer->offset;
489}
490
2f9606b3 491void buffer_reset(Buffer *buffer)
89064286 492{
28a76be8 493 buffer->offset = 0;
89064286
AL		 494}
495
5d418e3b
CC		 496void buffer_free(Buffer *buffer)
497{
7267c094 498 g_free(buffer->buffer);
5d418e3b
CC		 499 buffer->offset = 0;
500 buffer->capacity = 0;
501 buffer->buffer = NULL;
502}
503
2f9606b3 504void buffer_append(Buffer *buffer, const void *data, size_t len)
89064286
AL		 505{
506 memcpy(buffer->buffer + buffer->offset, data, len);
507 buffer->offset += len;
508}
509
32ed2680
TH		 510void buffer_advance(Buffer *buf, size_t len)
511{
512 memmove(buf->buffer, buf->buffer + len,
513 (buf->offset - len));
514 buf->offset -= len;
515}
516
621aaeb9
GH		 517static void vnc_desktop_resize(VncState *vs)
518{
d39fa6d8 519 DisplaySurface *ds = vs->vd->ds;
621aaeb9
GH		 520
521 if (vs->csock == -1 || !vnc_has_feature(vs, VNC_FEATURE_RESIZE)) {
522 return;
523 }
d39fa6d8
GH		 524 if (vs->client_width == surface_width(ds) &&
525 vs->client_height == surface_height(ds)) {
1d4b638a
GH		 526 return;
527 }
d39fa6d8
GH		 528 vs->client_width = surface_width(ds);
529 vs->client_height = surface_height(ds);
bd023f95 530 vnc_lock_output(vs);
621aaeb9
GH		 531 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
532 vnc_write_u8(vs, 0);
533 vnc_write_u16(vs, 1); /* number of rects */
5862d195 534 vnc_framebuffer_update(vs, 0, 0, vs->client_width, vs->client_height,
621aaeb9 535 VNC_ENCODING_DESKTOPRESIZE);
bd023f95 536 vnc_unlock_output(vs);
621aaeb9
GH		 537 vnc_flush(vs);
538}
539
bd023f95
CC		 540static void vnc_abort_display_jobs(VncDisplay *vd)
541{
542 VncState *vs;
543
544 QTAILQ_FOREACH(vs, &vd->clients, next) {
545 vnc_lock_output(vs);
546 vs->abort = true;
547 vnc_unlock_output(vs);
548 }
549 QTAILQ_FOREACH(vs, &vd->clients, next) {
550 vnc_jobs_join(vs);
551 }
552 QTAILQ_FOREACH(vs, &vd->clients, next) {
553 vnc_lock_output(vs);
554 vs->abort = false;
555 vnc_unlock_output(vs);
556 }
557}
bd023f95 558
9f64916d
GH		 559int vnc_server_fb_stride(VncDisplay *vd)
560{
561 return pixman_image_get_stride(vd->server);
562}
563
564void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y)
565{
566 uint8_t *ptr;
567
568 ptr = (uint8_t *)pixman_image_get_data(vd->server);
569 ptr += y * vnc_server_fb_stride(vd);
570 ptr += x * VNC_SERVER_FB_BYTES;
571 return ptr;
572}
573
c12aeb86 574static void vnc_dpy_switch(DisplayChangeListener *dcl,
c12aeb86 575 DisplaySurface *surface)
24236869 576{
21ef45d7 577 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
41b4bef6 578 VncState *vs;
1fc62412 579
bd023f95
CC		 580 vnc_abort_display_jobs(vd);
581
1fc62412 582 /* server surface */
9f64916d 583 qemu_pixman_image_unref(vd->server);
d39fa6d8 584 vd->ds = surface;
9f64916d 585 vd->server = pixman_image_create_bits(VNC_SERVER_FB_FORMAT,
d39fa6d8
GH		 586 surface_width(vd->ds),
587 surface_height(vd->ds),
9f64916d 588 NULL, 0);
24236869 589
6baebed7 590 /* guest surface */
9f64916d 591#if 0 /* FIXME */
1fc62412 592 if (ds_get_bytes_per_pixel(ds) != vd->guest.ds->pf.bytes_per_pixel)
a528b80c 593 console_color_init(ds);
9f64916d
GH		 594#endif
595 qemu_pixman_image_unref(vd->guest.fb);
d39fa6d8
GH		 596 vd->guest.fb = pixman_image_ref(surface->image);
597 vd->guest.format = surface->format;
1fc62412 598 memset(vd->guest.dirty, 0xFF, sizeof(vd->guest.dirty));
24236869 599
41b4bef6 600 QTAILQ_FOREACH(vs, &vd->clients, next) {
1fc62412 601 vnc_colordepth(vs);
1d4b638a 602 vnc_desktop_resize(vs);
d467b679
GH		 603 if (vs->vd->cursor) {
604 vnc_cursor_define(vs);
605 }
1fc62412 606 memset(vs->dirty, 0xFF, sizeof(vs->dirty));
753b4053
AL		 607 }
608}
609
3512779a 610/* fastest code */
9f64916d 611static void vnc_write_pixels_copy(VncState *vs,
d467b679 612 void *pixels, int size)
3512779a
FB		 613{
614 vnc_write(vs, pixels, size);
615}
616
617/* slowest but generic code. */
70a4568f 618void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v)
3512779a 619{
7eac3a87 620 uint8_t r, g, b;
1fc62412 621
9f64916d
GH		 622#if VNC_SERVER_FB_FORMAT == PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8)
623 r = (((v & 0x00ff0000) >> 16) << vs->client_pf.rbits) >> 8;
624 g = (((v & 0x0000ff00) >> 8) << vs->client_pf.gbits) >> 8;
625 b = (((v & 0x000000ff) >> 0) << vs->client_pf.bbits) >> 8;
626#else
627# error need some bits here if you change VNC_SERVER_FB_FORMAT
628#endif
629 v = (r << vs->client_pf.rshift) |
630 (g << vs->client_pf.gshift) |
631 (b << vs->client_pf.bshift);
632 switch (vs->client_pf.bytes_per_pixel) {
3512779a
FB		 633 case 1:
634 buf[0] = v;
635 break;
636 case 2:
9f64916d 637 if (vs->client_be) {
3512779a
FB		 638 buf[0] = v >> 8;
639 buf[1] = v;
640 } else {
641 buf[1] = v >> 8;
642 buf[0] = v;
643 }
644 break;
645 default:
646 case 4:
9f64916d 647 if (vs->client_be) {
3512779a
FB		 648 buf[0] = v >> 24;
649 buf[1] = v >> 16;
650 buf[2] = v >> 8;
651 buf[3] = v;
652 } else {
653 buf[3] = v >> 24;
654 buf[2] = v >> 16;
655 buf[1] = v >> 8;
656 buf[0] = v;
657 }
658 break;
659 }
660}
661
9f64916d 662static void vnc_write_pixels_generic(VncState *vs,
d467b679 663 void *pixels1, int size)
3512779a 664{
3512779a 665 uint8_t buf[4];
3512779a 666
9f64916d 667 if (VNC_SERVER_FB_BYTES == 4) {
7eac3a87
AL		 668 uint32_t *pixels = pixels1;
669 int n, i;
670 n = size >> 2;
9f64916d 671 for (i = 0; i < n; i++) {
7eac3a87 672 vnc_convert_pixel(vs, buf, pixels[i]);
9f64916d 673 vnc_write(vs, buf, vs->client_pf.bytes_per_pixel);
7eac3a87 674 }
3512779a
FB		 675 }
676}
677
a885211e 678int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
24236869
FB		 679{
680 int i;
60fe76f3 681 uint8_t *row;
1fc62412 682 VncDisplay *vd = vs->vd;
24236869 683
9f64916d 684 row = vnc_server_fb_ptr(vd, x, y);
24236869 685 for (i = 0; i < h; i++) {
9f64916d
GH		 686 vs->write_pixels(vs, row, w * VNC_SERVER_FB_BYTES);
687 row += vnc_server_fb_stride(vd);
24236869 688 }
a885211e 689 return 1;
24236869
FB		 690}
691
bd023f95 692int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
24236869 693{
a885211e
CC		 694 int n = 0;
695
fb437313 696 switch(vs->vnc_encoding) {
28a76be8 697 case VNC_ENCODING_ZLIB:
a885211e 698 n = vnc_zlib_send_framebuffer_update(vs, x, y, w, h);
28a76be8
AL		 699 break;
700 case VNC_ENCODING_HEXTILE:
701 vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_HEXTILE);
a885211e 702 n = vnc_hextile_send_framebuffer_update(vs, x, y, w, h);
28a76be8 703 break;
380282b0
CC		 704 case VNC_ENCODING_TIGHT:
705 n = vnc_tight_send_framebuffer_update(vs, x, y, w, h);
706 break;
efe556ad
CC		 707 case VNC_ENCODING_TIGHT_PNG:
708 n = vnc_tight_png_send_framebuffer_update(vs, x, y, w, h);
709 break;
148954fa
CC		 710 case VNC_ENCODING_ZRLE:
711 n = vnc_zrle_send_framebuffer_update(vs, x, y, w, h);
712 break;
713 case VNC_ENCODING_ZYWRLE:
714 n = vnc_zywrle_send_framebuffer_update(vs, x, y, w, h);
715 break;
28a76be8
AL		 716 default:
717 vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW);
a885211e 718 n = vnc_raw_send_framebuffer_update(vs, x, y, w, h);
28a76be8 719 break;
fb437313 720 }
a885211e 721 return n;
24236869
FB		 722}
723
753b4053 724static void vnc_copy(VncState *vs, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
24236869 725{
3e28c9ad 726 /* send bitblit op to the vnc client */
bd023f95 727 vnc_lock_output(vs);
46a183da 728 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
24236869
FB		 729 vnc_write_u8(vs, 0);
730 vnc_write_u16(vs, 1); /* number of rects */
29fa4ed9 731 vnc_framebuffer_update(vs, dst_x, dst_y, w, h, VNC_ENCODING_COPYRECT);
24236869
FB		 732 vnc_write_u16(vs, src_x);
733 vnc_write_u16(vs, src_y);
bd023f95 734 vnc_unlock_output(vs);
24236869
FB		 735 vnc_flush(vs);
736}
737
7c20b4a3 738static void vnc_dpy_copy(DisplayChangeListener *dcl,
7c20b4a3
GH		 739 int src_x, int src_y,
740 int dst_x, int dst_y, int w, int h)
753b4053 741{
21ef45d7 742 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
198a0039 743 VncState *vs, *vn;
1fc62412
SS		 744 uint8_t *src_row;
745 uint8_t *dst_row;
9f64916d 746 int i, x, y, pitch, inc, w_lim, s;
1fc62412 747 int cmp_bytes;
198a0039 748
1fc62412 749 vnc_refresh_server_surface(vd);
41b4bef6 750 QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) {
198a0039
GH		 751 if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
752 vs->force_update = 1;
bd023f95 753 vnc_update_client_sync(vs, 1);
198a0039
GH		 754 /* vs might be free()ed here */
755 }
756 }
757
1fc62412 758 /* do bitblit op on the local surface too */
9f64916d
GH		 759 pitch = vnc_server_fb_stride(vd);
760 src_row = vnc_server_fb_ptr(vd, src_x, src_y);
761 dst_row = vnc_server_fb_ptr(vd, dst_x, dst_y);
1fc62412
SS		 762 y = dst_y;
763 inc = 1;
764 if (dst_y > src_y) {
765 /* copy backwards */
766 src_row += pitch * (h-1);
767 dst_row += pitch * (h-1);
768 pitch = -pitch;
769 y = dst_y + h - 1;
770 inc = -1;
771 }
772 w_lim = w - (16 - (dst_x % 16));
773 if (w_lim < 0)
774 w_lim = w;
775 else
776 w_lim = w - (w_lim % 16);
777 for (i = 0; i < h; i++) {
778 for (x = 0; x <= w_lim;
779 x += s, src_row += cmp_bytes, dst_row += cmp_bytes) {
780 if (x == w_lim) {
781 if ((s = w - w_lim) == 0)
782 break;
783 } else if (!x) {
784 s = (16 - (dst_x % 16));
785 s = MIN(s, w_lim);
786 } else {
787 s = 16;
788 }
9f64916d 789 cmp_bytes = s * VNC_SERVER_FB_BYTES;
1fc62412
SS		 790 if (memcmp(src_row, dst_row, cmp_bytes) == 0)
791 continue;
792 memmove(dst_row, src_row, cmp_bytes);
41b4bef6
AS		 793 QTAILQ_FOREACH(vs, &vd->clients, next) {
794 if (!vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
bc2429b9 795 set_bit(((x + dst_x) / 16), vs->dirty[y]);
41b4bef6 796 }
1fc62412
SS		 797 }
798 }
9f64916d
GH		 799 src_row += pitch - w * VNC_SERVER_FB_BYTES;
800 dst_row += pitch - w * VNC_SERVER_FB_BYTES;
1fc62412
SS		 801 y += inc;
802 }
803
41b4bef6
AS		 804 QTAILQ_FOREACH(vs, &vd->clients, next) {
805 if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
753b4053 806 vnc_copy(vs, src_x, src_y, dst_x, dst_y, w, h);
41b4bef6 807 }
753b4053
AL		 808 }
809}
810
7c20b4a3 811static void vnc_mouse_set(DisplayChangeListener *dcl,
7c20b4a3 812 int x, int y, int visible)
d467b679
GH		 813{
814 /* can we ask the client(s) to move the pointer ??? */
815}
816
817static int vnc_cursor_define(VncState *vs)
818{
819 QEMUCursor *c = vs->vd->cursor;
d467b679
GH		 820 int isize;
821
822 if (vnc_has_feature(vs, VNC_FEATURE_RICH_CURSOR)) {
d01f9595 823 vnc_lock_output(vs);
d467b679
GH		 824 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
825 vnc_write_u8(vs, 0); /* padding */
826 vnc_write_u16(vs, 1); /* # of rects */
827 vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height,
828 VNC_ENCODING_RICH_CURSOR);
9f64916d
GH		 829 isize = c->width * c->height * vs->client_pf.bytes_per_pixel;
830 vnc_write_pixels_generic(vs, c->data, isize);
d467b679 831 vnc_write(vs, vs->vd->cursor_mask, vs->vd->cursor_msize);
d01f9595 832 vnc_unlock_output(vs);
d467b679
GH		 833 return 0;
834 }
835 return -1;
836}
837
7c20b4a3 838static void vnc_dpy_cursor_define(DisplayChangeListener *dcl,
7c20b4a3 839 QEMUCursor *c)
d467b679
GH		 840{
841 VncDisplay *vd = vnc_display;
842 VncState *vs;
843
844 cursor_put(vd->cursor);
7267c094 845 g_free(vd->cursor_mask);
d467b679
GH		 846
847 vd->cursor = c;
848 cursor_get(vd->cursor);
849 vd->cursor_msize = cursor_get_mono_bpl(c) * c->height;
7267c094 850 vd->cursor_mask = g_malloc0(vd->cursor_msize);
d467b679
GH		 851 cursor_get_mono_mask(c, 0, vd->cursor_mask);
852
853 QTAILQ_FOREACH(vs, &vd->clients, next) {
854 vnc_cursor_define(vs);
855 }
856}
857
1fc62412 858static int find_and_clear_dirty_height(struct VncState *vs,
6c71a539 859 int y, int last_x, int x, int height)
24236869
FB		 860{
861 int h;
862
6c71a539 863 for (h = 1; h < (height - y); h++) {
28a76be8 864 int tmp_x;
bc2429b9 865 if (!test_bit(last_x, vs->dirty[y + h])) {
28a76be8 866 break;
bc2429b9
CC		 867 }
868 for (tmp_x = last_x; tmp_x < x; tmp_x++) {
869 clear_bit(tmp_x, vs->dirty[y + h]);
870 }
24236869
FB		 871 }
872
873 return h;
874}
875
bd023f95
CC		 876static int vnc_update_client_sync(VncState *vs, int has_dirty)
877{
878 int ret = vnc_update_client(vs, has_dirty);
879 vnc_jobs_join(vs);
880 return ret;
881}
bd023f95 882
2430ffe4 883static int vnc_update_client(VncState *vs, int has_dirty)
24236869 884{
24236869 885 if (vs->need_update && vs->csock != -1) {
1fc62412 886 VncDisplay *vd = vs->vd;
bd023f95 887 VncJob *job;
28a76be8 888 int y;
847ce6a1 889 int width, height;
bd023f95
CC		 890 int n = 0;
891
24236869 892
703bc68f 893 if (vs->output.offset && !vs->audio_cap && !vs->force_update)
c522d0e2 894 /* kernel send buffers are full -> drop frames to throttle */
2430ffe4 895 return 0;
a0ecfb73 896
703bc68f 897 if (!has_dirty && !vs->audio_cap && !vs->force_update)
2430ffe4 898 return 0;
28a76be8 899
6baebed7
AL		 900 /*
901 * Send screen updates to the vnc client using the server
902 * surface and server dirty map. guest surface updates
903 * happening in parallel don't disturb us, the next pass will
904 * send them to the client.
905 */
bd023f95 906 job = vnc_job_new(vs);
28a76be8 907
9f64916d
GH		 908 width = MIN(pixman_image_get_width(vd->server), vs->client_width);
909 height = MIN(pixman_image_get_height(vd->server), vs->client_height);
847ce6a1
GH		 910
911 for (y = 0; y < height; y++) {
28a76be8
AL		 912 int x;
913 int last_x = -1;
847ce6a1 914 for (x = 0; x < width / 16; x++) {
bc2429b9 915 if (test_and_clear_bit(x, vs->dirty[y])) {
28a76be8
AL		 916 if (last_x == -1) {
917 last_x = x;
918 }
28a76be8
AL		 919 } else {
920 if (last_x != -1) {
6c71a539
CC		 921 int h = find_and_clear_dirty_height(vs, y, last_x, x,
922 height);
bd023f95
CC		 923
924 n += vnc_job_add_rect(job, last_x * 16, y,
925 (x - last_x) * 16, h);
28a76be8
AL		 926 }
927 last_x = -1;
928 }
929 }
930 if (last_x != -1) {
6c71a539 931 int h = find_and_clear_dirty_height(vs, y, last_x, x, height);
bd023f95
CC		 932 n += vnc_job_add_rect(job, last_x * 16, y,
933 (x - last_x) * 16, h);
28a76be8
AL		 934 }
935 }
bd023f95
CC		 936
937 vnc_job_push(job);
c522d0e2 938 vs->force_update = 0;
bd023f95 939 return n;
24236869 940 }
24236869 941
703bc68f 942 if (vs->csock == -1)
198a0039 943 vnc_disconnect_finish(vs);
2430ffe4
SS		 944
945 return 0;
24236869
FB		 946}
947
429a8ed3 948/* audio */
949static void audio_capture_notify(void *opaque, audcnotification_e cmd)
950{
951 VncState *vs = opaque;
952
953 switch (cmd) {
954 case AUD_CNOTIFY_DISABLE:
bd023f95 955 vnc_lock_output(vs);
46a183da
DB		 956 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
957 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
958 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_END);
bd023f95 959 vnc_unlock_output(vs);
429a8ed3 960 vnc_flush(vs);
961 break;
962
963 case AUD_CNOTIFY_ENABLE:
bd023f95 964 vnc_lock_output(vs);
46a183da
DB		 965 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
966 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
967 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_BEGIN);
bd023f95 968 vnc_unlock_output(vs);
429a8ed3 969 vnc_flush(vs);
970 break;
971 }
972}
973
974static void audio_capture_destroy(void *opaque)
975{
976}
977
978static void audio_capture(void *opaque, void *buf, int size)
979{
980 VncState *vs = opaque;
981
bd023f95 982 vnc_lock_output(vs);
46a183da
DB		 983 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
984 vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
985 vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_DATA);
429a8ed3 986 vnc_write_u32(vs, size);
987 vnc_write(vs, buf, size);
bd023f95 988 vnc_unlock_output(vs);
429a8ed3 989 vnc_flush(vs);
990}
991
992static void audio_add(VncState *vs)
993{
994 struct audio_capture_ops ops;
995
996 if (vs->audio_cap) {
8631b608 997 monitor_printf(default_mon, "audio already running\n");
429a8ed3 998 return;
999 }
1000
1001 ops.notify = audio_capture_notify;
1002 ops.destroy = audio_capture_destroy;
1003 ops.capture = audio_capture;
1004
1a7dafce 1005 vs->audio_cap = AUD_add_capture(&vs->as, &ops, vs);
429a8ed3 1006 if (!vs->audio_cap) {
8631b608 1007 monitor_printf(default_mon, "Failed to add audio capture\n");
429a8ed3 1008 }
1009}
1010
1011static void audio_del(VncState *vs)
1012{
1013 if (vs->audio_cap) {
1014 AUD_del_capture(vs->audio_cap, vs);
1015 vs->audio_cap = NULL;
1016 }
1017}
1018
198a0039
GH		 1019static void vnc_disconnect_start(VncState *vs)
1020{
1021 if (vs->csock == -1)
1022 return;
8cf36489 1023 vnc_set_share_mode(vs, VNC_SHARE_MODE_DISCONNECTED);
198a0039
GH		 1024 qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
1025 closesocket(vs->csock);
1026 vs->csock = -1;
1027}
1028
7536ee4b 1029void vnc_disconnect_finish(VncState *vs)
198a0039 1030{
7d964c9d
CC		 1031 int i;
1032
bd023f95
CC		 1033 vnc_jobs_join(vs); /* Wait encoding jobs */
1034
1035 vnc_lock_output(vs);
0d72f3d3
LC		 1036 vnc_qmp_event(vs, QEVENT_VNC_DISCONNECTED);
1037
5d418e3b
CC		 1038 buffer_free(&vs->input);
1039 buffer_free(&vs->output);
7536ee4b
TH		 1040#ifdef CONFIG_VNC_WS
1041 buffer_free(&vs->ws_input);
1042 buffer_free(&vs->ws_output);
1043#endif /* CONFIG_VNC_WS */
4a80dba3
LC		 1044
1045 qobject_decref(vs->info);
1046
161c4f20 1047 vnc_zlib_clear(vs);
380282b0 1048 vnc_tight_clear(vs);
148954fa 1049 vnc_zrle_clear(vs);
161c4f20 1050
198a0039
GH		 1051#ifdef CONFIG_VNC_TLS
1052 vnc_tls_client_cleanup(vs);
1053#endif /* CONFIG_VNC_TLS */
1054#ifdef CONFIG_VNC_SASL
1055 vnc_sasl_client_cleanup(vs);
1056#endif /* CONFIG_VNC_SASL */
1057 audio_del(vs);
7bc9318b 1058 vnc_release_modifiers(vs);
198a0039 1059
6fd8e79a
TH		 1060 if (vs->initialized) {
1061 QTAILQ_REMOVE(&vs->vd->clients, vs, next);
1062 qemu_remove_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
1063 }
41b4bef6 1064
3a0558b5
GH		 1065 if (vs->vd->lock_key_sync)
1066 qemu_remove_led_event_handler(vs->led);
bd023f95
CC		 1067 vnc_unlock_output(vs);
1068
bd023f95 1069 qemu_mutex_destroy(&vs->output_mutex);
6fd8e79a
TH		 1070 if (vs->bh != NULL) {
1071 qemu_bh_delete(vs->bh);
1072 }
175b2a6e 1073 buffer_free(&vs->jobs_buffer);
175b2a6e 1074
7d964c9d 1075 for (i = 0; i < VNC_STAT_ROWS; ++i) {
7267c094 1076 g_free(vs->lossy_rect[i]);
7d964c9d 1077 }
7267c094
AL		 1078 g_free(vs->lossy_rect);
1079 g_free(vs);
198a0039 1080}
2f9606b3
AL		 1081
1082int vnc_client_io_error(VncState *vs, int ret, int last_errno)
24236869
FB		 1083{
1084 if (ret == 0 || ret == -1) {
ea01e5fd
AZ		 1085 if (ret == -1) {
1086 switch (last_errno) {
1087 case EINTR:
1088 case EAGAIN:
1089#ifdef _WIN32
1090 case WSAEWOULDBLOCK:
1091#endif
1092 return 0;
1093 default:
1094 break;
1095 }
1096 }
24236869 1097
198a0039
GH		 1098 VNC_DEBUG("Closing down client sock: ret %d, errno %d\n",
1099 ret, ret < 0 ? last_errno : 0);
1100 vnc_disconnect_start(vs);
6baebed7 1101
28a76be8 1102 return 0;
24236869
FB		 1103 }
1104 return ret;
1105}
1106
5fb6c7a8
AL		 1107
1108void vnc_client_error(VncState *vs)
24236869 1109{
198a0039
GH		 1110 VNC_DEBUG("Closing down client sock: protocol error\n");
1111 vnc_disconnect_start(vs);
24236869
FB		 1112}
1113
2f9606b3
AL		 1114
1115/*
1116 * Called to write a chunk of data to the client socket. The data may
1117 * be the raw data, or may have already been encoded by SASL.
1118 * The data will be written either straight onto the socket, or
1119 * written via the GNUTLS wrappers, if TLS/SSL encryption is enabled
1120 *
1121 * NB, it is theoretically possible to have 2 layers of encryption,
1122 * both SASL, and this TLS layer. It is highly unlikely in practice
1123 * though, since SASL encryption will typically be a no-op if TLS
1124 * is active
1125 *
1126 * Returns the number of bytes written, which may be less than
1127 * the requested 'datalen' if the socket would block. Returns
1128 * -1 on error, and disconnects the client socket.
1129 */
1130long vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen)
24236869 1131{
ceb5caaf 1132 long ret;
eb38c52c 1133#ifdef CONFIG_VNC_TLS
5fb6c7a8 1134 if (vs->tls.session) {
28a76be8
AL		 1135 ret = gnutls_write(vs->tls.session, data, datalen);
1136 if (ret < 0) {
1137 if (ret == GNUTLS_E_AGAIN)
1138 errno = EAGAIN;
1139 else
1140 errno = EIO;
1141 ret = -1;
1142 }
8d5d2d4c
TS		 1143 } else
1144#endif /* CONFIG_VNC_TLS */
70503264 1145 ret = send(vs->csock, (const void *)data, datalen, 0);
23decc87 1146 VNC_DEBUG("Wrote wire %p %zd -> %ld\n", data, datalen, ret);
2f9606b3
AL		 1147 return vnc_client_io_error(vs, ret, socket_error());
1148}
1149
1150
1151/*
1152 * Called to write buffered data to the client socket, when not
1153 * using any SASL SSF encryption layers. Will write as much data
1154 * as possible without blocking. If all buffered data is written,
1155 * will switch the FD poll() handler back to read monitoring.
1156 *
1157 * Returns the number of bytes written, which may be less than
1158 * the buffered output data if the socket would block. Returns
1159 * -1 on error, and disconnects the client socket.
1160 */
1161static long vnc_client_write_plain(VncState *vs)
1162{
1163 long ret;
1164
1165#ifdef CONFIG_VNC_SASL
23decc87 1166 VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n",
2f9606b3
AL		 1167 vs->output.buffer, vs->output.capacity, vs->output.offset,
1168 vs->sasl.waitWriteSSF);
1169
1170 if (vs->sasl.conn &&
1171 vs->sasl.runSSF &&
1172 vs->sasl.waitWriteSSF) {
1173 ret = vnc_client_write_buf(vs, vs->output.buffer, vs->sasl.waitWriteSSF);
1174 if (ret)
1175 vs->sasl.waitWriteSSF -= ret;
1176 } else
1177#endif /* CONFIG_VNC_SASL */
1178 ret = vnc_client_write_buf(vs, vs->output.buffer, vs->output.offset);
24236869 1179 if (!ret)
2f9606b3 1180 return 0;
24236869 1181
32ed2680 1182 buffer_advance(&vs->output, ret);
24236869
FB		 1183
1184 if (vs->output.offset == 0) {
28a76be8 1185 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
24236869 1186 }
2f9606b3
AL		 1187
1188 return ret;
1189}
1190
1191
1192/*
1193 * First function called whenever there is data to be written to
1194 * the client socket. Will delegate actual work according to whether
1195 * SASL SSF layers are enabled (thus requiring encryption calls)
1196 */
bd023f95 1197static void vnc_client_write_locked(void *opaque)
2f9606b3 1198{
2f9606b3
AL		 1199 VncState *vs = opaque;
1200
1201#ifdef CONFIG_VNC_SASL
1202 if (vs->sasl.conn &&
1203 vs->sasl.runSSF &&
9678d950
BS		 1204 !vs->sasl.waitWriteSSF) {
1205 vnc_client_write_sasl(vs);
1206 } else
2f9606b3 1207#endif /* CONFIG_VNC_SASL */
7536ee4b
TH		 1208 {
1209#ifdef CONFIG_VNC_WS
1210 if (vs->encode_ws) {
1211 vnc_client_write_ws(vs);
1212 } else
1213#endif /* CONFIG_VNC_WS */
1214 {
1215 vnc_client_write_plain(vs);
1216 }
1217 }
24236869
FB		 1218}
1219
bd023f95
CC		 1220void vnc_client_write(void *opaque)
1221{
1222 VncState *vs = opaque;
1223
1224 vnc_lock_output(vs);
7536ee4b
TH		 1225 if (vs->output.offset
1226#ifdef CONFIG_VNC_WS
1227 || vs->ws_output.offset
1228#endif
1229 ) {
bd023f95 1230 vnc_client_write_locked(opaque);
ac71103d 1231 } else if (vs->csock != -1) {
bd023f95
CC		 1232 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
1233 }
1234 vnc_unlock_output(vs);
1235}
1236
5fb6c7a8 1237void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting)
24236869
FB		 1238{
1239 vs->read_handler = func;
1240 vs->read_handler_expect = expecting;
1241}
1242
2f9606b3
AL		 1243
1244/*
1245 * Called to read a chunk of data from the client socket. The data may
1246 * be the raw data, or may need to be further decoded by SASL.
1247 * The data will be read either straight from to the socket, or
1248 * read via the GNUTLS wrappers, if TLS/SSL encryption is enabled
1249 *
1250 * NB, it is theoretically possible to have 2 layers of encryption,
1251 * both SASL, and this TLS layer. It is highly unlikely in practice
1252 * though, since SASL encryption will typically be a no-op if TLS
1253 * is active
1254 *
1255 * Returns the number of bytes read, which may be less than
1256 * the requested 'datalen' if the socket would block. Returns
1257 * -1 on error, and disconnects the client socket.
1258 */
1259long vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen)
24236869 1260{
ceb5caaf 1261 long ret;
eb38c52c 1262#ifdef CONFIG_VNC_TLS
5fb6c7a8 1263 if (vs->tls.session) {
28a76be8
AL		 1264 ret = gnutls_read(vs->tls.session, data, datalen);
1265 if (ret < 0) {
1266 if (ret == GNUTLS_E_AGAIN)
1267 errno = EAGAIN;
1268 else
1269 errno = EIO;
1270 ret = -1;
1271 }
8d5d2d4c
TS		 1272 } else
1273#endif /* CONFIG_VNC_TLS */
00aa0040 1274 ret = qemu_recv(vs->csock, data, datalen, 0);
23decc87 1275 VNC_DEBUG("Read wire %p %zd -> %ld\n", data, datalen, ret);
2f9606b3
AL		 1276 return vnc_client_io_error(vs, ret, socket_error());
1277}
24236869 1278
2f9606b3
AL		 1279
1280/*
1281 * Called to read data from the client socket to the input buffer,
1282 * when not using any SASL SSF encryption layers. Will read as much
1283 * data as possible without blocking.
1284 *
1285 * Returns the number of bytes read. Returns -1 on error, and
1286 * disconnects the client socket.
1287 */
1288static long vnc_client_read_plain(VncState *vs)
1289{
1290 int ret;
23decc87 1291 VNC_DEBUG("Read plain %p size %zd offset %zd\n",
2f9606b3
AL		 1292 vs->input.buffer, vs->input.capacity, vs->input.offset);
1293 buffer_reserve(&vs->input, 4096);
1294 ret = vnc_client_read_buf(vs, buffer_end(&vs->input), 4096);
1295 if (!ret)
1296 return 0;
24236869 1297 vs->input.offset += ret;
2f9606b3
AL		 1298 return ret;
1299}
1300
175b2a6e
CC		 1301static void vnc_jobs_bh(void *opaque)
1302{
1303 VncState *vs = opaque;
1304
1305 vnc_jobs_consume_buffer(vs);
1306}
2f9606b3
AL		 1307
1308/*
1309 * First function called whenever there is more data to be read from
1310 * the client socket. Will delegate actual work according to whether
1311 * SASL SSF layers are enabled (thus requiring decryption calls)
1312 */
1313void vnc_client_read(void *opaque)
1314{
1315 VncState *vs = opaque;
1316 long ret;
1317
1318#ifdef CONFIG_VNC_SASL
1319 if (vs->sasl.conn && vs->sasl.runSSF)
1320 ret = vnc_client_read_sasl(vs);
1321 else
1322#endif /* CONFIG_VNC_SASL */
7536ee4b
TH		 1323#ifdef CONFIG_VNC_WS
1324 if (vs->encode_ws) {
1325 ret = vnc_client_read_ws(vs);
1326 if (ret == -1) {
1327 vnc_disconnect_start(vs);
1328 return;
1329 } else if (ret == -2) {
1330 vnc_client_error(vs);
1331 return;
1332 }
1333 } else
1334#endif /* CONFIG_VNC_WS */
1335 {
2f9606b3 1336 ret = vnc_client_read_plain(vs);
7536ee4b 1337 }
198a0039
GH		 1338 if (!ret) {
1339 if (vs->csock == -1)
1340 vnc_disconnect_finish(vs);
28a76be8 1341 return;
198a0039 1342 }
24236869
FB		 1343
1344 while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
28a76be8
AL		 1345 size_t len = vs->read_handler_expect;
1346 int ret;
1347
1348 ret = vs->read_handler(vs, vs->input.buffer, len);
198a0039
GH		 1349 if (vs->csock == -1) {
1350 vnc_disconnect_finish(vs);
28a76be8 1351 return;
198a0039 1352 }
28a76be8
AL		 1353
1354 if (!ret) {
32ed2680 1355 buffer_advance(&vs->input, len);
28a76be8
AL		 1356 } else {
1357 vs->read_handler_expect = ret;
1358 }
24236869
FB		 1359 }
1360}
1361
5fb6c7a8 1362void vnc_write(VncState *vs, const void *data, size_t len)
24236869
FB		 1363{
1364 buffer_reserve(&vs->output, len);
1365
198a0039 1366 if (vs->csock != -1 && buffer_empty(&vs->output)) {
28a76be8 1367 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
24236869
FB		 1368 }
1369
1370 buffer_append(&vs->output, data, len);
1371}
1372
5fb6c7a8 1373void vnc_write_s32(VncState *vs, int32_t value)
24236869
FB		 1374{
1375 vnc_write_u32(vs, *(uint32_t *)&value);
1376}
1377
5fb6c7a8 1378void vnc_write_u32(VncState *vs, uint32_t value)
24236869
FB		 1379{
1380 uint8_t buf[4];
1381
1382 buf[0] = (value >> 24) & 0xFF;
1383 buf[1] = (value >> 16) & 0xFF;
1384 buf[2] = (value >> 8) & 0xFF;
1385 buf[3] = value & 0xFF;
1386
1387 vnc_write(vs, buf, 4);
1388}
1389
5fb6c7a8 1390void vnc_write_u16(VncState *vs, uint16_t value)
24236869 1391{
64f5a135 1392 uint8_t buf[2];
24236869
FB		 1393
1394 buf[0] = (value >> 8) & 0xFF;
1395 buf[1] = value & 0xFF;
1396
1397 vnc_write(vs, buf, 2);
1398}
1399
5fb6c7a8 1400void vnc_write_u8(VncState *vs, uint8_t value)
24236869
FB		 1401{
1402 vnc_write(vs, (char *)&value, 1);
1403}
1404
5fb6c7a8 1405void vnc_flush(VncState *vs)
24236869 1406{
bd023f95 1407 vnc_lock_output(vs);
7536ee4b
TH		 1408 if (vs->csock != -1 && (vs->output.offset
1409#ifdef CONFIG_VNC_WS
1410 || vs->ws_output.offset
1411#endif
1412 )) {
bd023f95
CC		 1413 vnc_client_write_locked(vs);
1414 }
1415 vnc_unlock_output(vs);
24236869
FB		 1416}
1417
71a8cdec 1418static uint8_t read_u8(uint8_t *data, size_t offset)
24236869
FB		 1419{
1420 return data[offset];
1421}
1422
71a8cdec 1423static uint16_t read_u16(uint8_t *data, size_t offset)
24236869
FB		 1424{
1425 return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF);
1426}
1427
71a8cdec 1428static int32_t read_s32(uint8_t *data, size_t offset)
24236869
FB		 1429{
1430 return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) |
28a76be8 1431 (data[offset + 2] << 8) | data[offset + 3]);
24236869
FB		 1432}
1433
5fb6c7a8 1434uint32_t read_u32(uint8_t *data, size_t offset)
24236869
FB		 1435{
1436 return ((data[offset] << 24) | (data[offset + 1] << 16) |
28a76be8 1437 (data[offset + 2] << 8) | data[offset + 3]);
24236869
FB		 1438}
1439
60fe76f3 1440static void client_cut_text(VncState *vs, size_t len, uint8_t *text)
24236869
FB		 1441{
1442}
1443
9e8dd451 1444static void check_pointer_type_change(Notifier *notifier, void *data)
564c337e 1445{
37c34d9d
AL		 1446 VncState *vs = container_of(notifier, VncState, mouse_mode_notifier);
1447 int absolute = kbd_mouse_is_absolute();
1448
29fa4ed9 1449 if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE) && vs->absolute != absolute) {
bd023f95 1450 vnc_lock_output(vs);
46a183da 1451 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
28a76be8
AL		 1452 vnc_write_u8(vs, 0);
1453 vnc_write_u16(vs, 1);
1454 vnc_framebuffer_update(vs, absolute, 0,
d39fa6d8
GH		 1455 surface_width(vs->vd->ds),
1456 surface_height(vs->vd->ds),
29fa4ed9 1457 VNC_ENCODING_POINTER_TYPE_CHANGE);
bd023f95 1458 vnc_unlock_output(vs);
28a76be8 1459 vnc_flush(vs);
564c337e
FB		 1460 }
1461 vs->absolute = absolute;
1462}
1463
24236869
FB		 1464static void pointer_event(VncState *vs, int button_mask, int x, int y)
1465{
1466 int buttons = 0;
1467 int dz = 0;
d39fa6d8
GH		 1468 int width = surface_width(vs->vd->ds);
1469 int height = surface_height(vs->vd->ds);
24236869
FB		 1470
1471 if (button_mask & 0x01)
28a76be8 1472 buttons |= MOUSE_EVENT_LBUTTON;
24236869 1473 if (button_mask & 0x02)
28a76be8 1474 buttons |= MOUSE_EVENT_MBUTTON;
24236869 1475 if (button_mask & 0x04)
28a76be8 1476 buttons |= MOUSE_EVENT_RBUTTON;
24236869 1477 if (button_mask & 0x08)
28a76be8 1478 dz = -1;
24236869 1479 if (button_mask & 0x10)
28a76be8 1480 dz = 1;
564c337e
FB		 1481
1482 if (vs->absolute) {
d39fa6d8
GH		 1483 kbd_mouse_event(width > 1 ? x * 0x7FFF / (width - 1) : 0x4000,
1484 height > 1 ? y * 0x7FFF / (height - 1) : 0x4000,
28a76be8 1485 dz, buttons);
29fa4ed9 1486 } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) {
28a76be8
AL		 1487 x -= 0x7FFF;
1488 y -= 0x7FFF;
24236869 1489
28a76be8 1490 kbd_mouse_event(x, y, dz, buttons);
564c337e 1491 } else {
28a76be8
AL		 1492 if (vs->last_x != -1)
1493 kbd_mouse_event(x - vs->last_x,
1494 y - vs->last_y,
1495 dz, buttons);
1496 vs->last_x = x;
1497 vs->last_y = y;
24236869
FB		 1498 }
1499}
1500
64f5a135
FB		 1501static void reset_keys(VncState *vs)
1502{
1503 int i;
1504 for(i = 0; i < 256; i++) {
1505 if (vs->modifiers_state[i]) {
44bb61c8
ST		 1506 if (i & SCANCODE_GREY)
1507 kbd_put_keycode(SCANCODE_EMUL0);
1508 kbd_put_keycode(i | SCANCODE_UP);
64f5a135
FB		 1509 vs->modifiers_state[i] = 0;
1510 }
1511 }
1512}
1513
a528b80c
AZ		 1514static void press_key(VncState *vs, int keysym)
1515{
44bb61c8
ST		 1516 int keycode = keysym2scancode(vs->vd->kbd_layout, keysym) & SCANCODE_KEYMASK;
1517 if (keycode & SCANCODE_GREY)
1518 kbd_put_keycode(SCANCODE_EMUL0);
1519 kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
1520 if (keycode & SCANCODE_GREY)
1521 kbd_put_keycode(SCANCODE_EMUL0);
1522 kbd_put_keycode(keycode | SCANCODE_UP);
a528b80c
AZ		 1523}
1524
7ffb82ca
GH		 1525static void kbd_leds(void *opaque, int ledstate)
1526{
1527 VncState *vs = opaque;
96f3d174 1528 int caps, num, scr;
7ffb82ca
GH		 1529
1530 caps = ledstate & QEMU_CAPS_LOCK_LED ? 1 : 0;
1531 num = ledstate & QEMU_NUM_LOCK_LED ? 1 : 0;
96f3d174 1532 scr = ledstate & QEMU_SCROLL_LOCK_LED ? 1 : 0;
7ffb82ca
GH		 1533
1534 if (vs->modifiers_state[0x3a] != caps) {
1535 vs->modifiers_state[0x3a] = caps;
1536 }
1537 if (vs->modifiers_state[0x45] != num) {
1538 vs->modifiers_state[0x45] = num;
1539 }
96f3d174
LL		 1540 if (vs->modifiers_state[0x46] != scr) {
1541 vs->modifiers_state[0x46] = scr;
1542 }
7ffb82ca
GH		 1543}
1544
9ca313aa 1545static void do_key_event(VncState *vs, int down, int keycode, int sym)
24236869 1546{
64f5a135
FB		 1547 /* QEMU console switch */
1548 switch(keycode) {
1549 case 0x2a: /* Left Shift */
1550 case 0x36: /* Right Shift */
1551 case 0x1d: /* Left CTRL */
1552 case 0x9d: /* Right CTRL */
1553 case 0x38: /* Left ALT */
1554 case 0xb8: /* Right ALT */
1555 if (down)
1556 vs->modifiers_state[keycode] = 1;
1557 else
1558 vs->modifiers_state[keycode] = 0;
1559 break;
5fafdf24 1560 case 0x02 ... 0x0a: /* '1' to '9' keys */
64f5a135
FB		 1561 if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
1562 /* Reset the modifiers sent to the current console */
1563 reset_keys(vs);
1564 console_select(keycode - 0x02);
1565 return;
1566 }
1567 break;
28a76be8
AL		 1568 case 0x3a: /* CapsLock */
1569 case 0x45: /* NumLock */
7ffb82ca 1570 if (down)
a528b80c
AZ		 1571 vs->modifiers_state[keycode] ^= 1;
1572 break;
1573 }
1574
9892088b 1575 if (down && vs->vd->lock_key_sync &&
3a0558b5 1576 keycode_is_keypad(vs->vd->kbd_layout, keycode)) {
a528b80c
AZ		 1577 /* If the numlock state needs to change then simulate an additional
1578 keypress before sending this one. This will happen if the user
1579 toggles numlock away from the VNC window.
1580 */
753b4053 1581 if (keysym_is_numlock(vs->vd->kbd_layout, sym & 0xFFFF)) {
a528b80c
AZ		 1582 if (!vs->modifiers_state[0x45]) {
1583 vs->modifiers_state[0x45] = 1;
1584 press_key(vs, 0xff7f);
1585 }
1586 } else {
1587 if (vs->modifiers_state[0x45]) {
1588 vs->modifiers_state[0x45] = 0;
1589 press_key(vs, 0xff7f);
1590 }
1591 }
64f5a135 1592 }
24236869 1593
9892088b 1594 if (down && vs->vd->lock_key_sync &&
3a0558b5 1595 ((sym >= 'A' && sym <= 'Z') || (sym >= 'a' && sym <= 'z'))) {
6b132502
GH		 1596 /* If the capslock state needs to change then simulate an additional
1597 keypress before sending this one. This will happen if the user
1598 toggles capslock away from the VNC window.
1599 */
1600 int uppercase = !!(sym >= 'A' && sym <= 'Z');
1601 int shift = !!(vs->modifiers_state[0x2a] | vs->modifiers_state[0x36]);
1602 int capslock = !!(vs->modifiers_state[0x3a]);
1603 if (capslock) {
1604 if (uppercase == shift) {
1605 vs->modifiers_state[0x3a] = 0;
1606 press_key(vs, 0xffe5);
1607 }
1608 } else {
1609 if (uppercase != shift) {
1610 vs->modifiers_state[0x3a] = 1;
1611 press_key(vs, 0xffe5);
1612 }
1613 }
1614 }
1615
81c0d5a6 1616 if (qemu_console_is_graphic(NULL)) {
44bb61c8
ST		 1617 if (keycode & SCANCODE_GREY)
1618 kbd_put_keycode(SCANCODE_EMUL0);
64f5a135 1619 if (down)
44bb61c8 1620 kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
64f5a135 1621 else
44bb61c8 1622 kbd_put_keycode(keycode | SCANCODE_UP);
64f5a135 1623 } else {
e26437c2
GH		 1624 bool numlock = vs->modifiers_state[0x45];
1625 bool control = (vs->modifiers_state[0x1d] ||
1626 vs->modifiers_state[0x9d]);
64f5a135
FB		 1627 /* QEMU console emulation */
1628 if (down) {
1629 switch (keycode) {
1630 case 0x2a: /* Left Shift */
1631 case 0x36: /* Right Shift */
1632 case 0x1d: /* Left CTRL */
1633 case 0x9d: /* Right CTRL */
1634 case 0x38: /* Left ALT */
1635 case 0xb8: /* Right ALT */
1636 break;
1637 case 0xc8:
1638 kbd_put_keysym(QEMU_KEY_UP);
1639 break;
1640 case 0xd0:
1641 kbd_put_keysym(QEMU_KEY_DOWN);
1642 break;
1643 case 0xcb:
1644 kbd_put_keysym(QEMU_KEY_LEFT);
1645 break;
1646 case 0xcd:
1647 kbd_put_keysym(QEMU_KEY_RIGHT);
1648 break;
1649 case 0xd3:
1650 kbd_put_keysym(QEMU_KEY_DELETE);
1651 break;
1652 case 0xc7:
1653 kbd_put_keysym(QEMU_KEY_HOME);
1654 break;
1655 case 0xcf:
1656 kbd_put_keysym(QEMU_KEY_END);
1657 break;
1658 case 0xc9:
1659 kbd_put_keysym(QEMU_KEY_PAGEUP);
1660 break;
1661 case 0xd1:
1662 kbd_put_keysym(QEMU_KEY_PAGEDOWN);
1663 break;
bb0a18e1
GH		 1664
1665 case 0x47:
1666 kbd_put_keysym(numlock ? '7' : QEMU_KEY_HOME);
1667 break;
1668 case 0x48:
1669 kbd_put_keysym(numlock ? '8' : QEMU_KEY_UP);
1670 break;
1671 case 0x49:
1672 kbd_put_keysym(numlock ? '9' : QEMU_KEY_PAGEUP);
1673 break;
1674 case 0x4b:
1675 kbd_put_keysym(numlock ? '4' : QEMU_KEY_LEFT);
1676 break;
1677 case 0x4c:
1678 kbd_put_keysym('5');
1679 break;
1680 case 0x4d:
1681 kbd_put_keysym(numlock ? '6' : QEMU_KEY_RIGHT);
1682 break;
1683 case 0x4f:
1684 kbd_put_keysym(numlock ? '1' : QEMU_KEY_END);
1685 break;
1686 case 0x50:
1687 kbd_put_keysym(numlock ? '2' : QEMU_KEY_DOWN);
1688 break;
1689 case 0x51:
1690 kbd_put_keysym(numlock ? '3' : QEMU_KEY_PAGEDOWN);
1691 break;
1692 case 0x52:
1693 kbd_put_keysym('0');
1694 break;
1695 case 0x53:
1696 kbd_put_keysym(numlock ? '.' : QEMU_KEY_DELETE);
1697 break;
1698
1699 case 0xb5:
1700 kbd_put_keysym('/');
1701 break;
1702 case 0x37:
1703 kbd_put_keysym('*');
1704 break;
1705 case 0x4a:
1706 kbd_put_keysym('-');
1707 break;
1708 case 0x4e:
1709 kbd_put_keysym('+');
1710 break;
1711 case 0x9c:
1712 kbd_put_keysym('\n');
1713 break;
1714
64f5a135 1715 default:
e26437c2
GH		 1716 if (control) {
1717 kbd_put_keysym(sym & 0x1f);
1718 } else {
1719 kbd_put_keysym(sym);
1720 }
64f5a135
FB		 1721 break;
1722 }
1723 }
1724 }
24236869
FB		 1725}
1726
7bc9318b
GH		 1727static void vnc_release_modifiers(VncState *vs)
1728{
1729 static const int keycodes[] = {
1730 /* shift, control, alt keys, both left & right */
1731 0x2a, 0x36, 0x1d, 0x9d, 0x38, 0xb8,
1732 };
1733 int i, keycode;
1734
81c0d5a6 1735 if (!qemu_console_is_graphic(NULL)) {
7bc9318b
GH		 1736 return;
1737 }
1738 for (i = 0; i < ARRAY_SIZE(keycodes); i++) {
1739 keycode = keycodes[i];
1740 if (!vs->modifiers_state[keycode]) {
1741 continue;
1742 }
1743 if (keycode & SCANCODE_GREY) {
1744 kbd_put_keycode(SCANCODE_EMUL0);
1745 }
1746 kbd_put_keycode(keycode | SCANCODE_UP);
1747 }
1748}
1749
bdbd7676
FB		 1750static void key_event(VncState *vs, int down, uint32_t sym)
1751{
9ca313aa 1752 int keycode;
4a93fe17 1753 int lsym = sym;
9ca313aa 1754
81c0d5a6 1755 if (lsym >= 'A' && lsym <= 'Z' && qemu_console_is_graphic(NULL)) {
4a93fe17
GH		 1756 lsym = lsym - 'A' + 'a';
1757 }
9ca313aa 1758
44bb61c8 1759 keycode = keysym2scancode(vs->vd->kbd_layout, lsym & 0xFFFF) & SCANCODE_KEYMASK;
9ca313aa
AL		 1760 do_key_event(vs, down, keycode, sym);
1761}
1762
1763static void ext_key_event(VncState *vs, int down,
1764 uint32_t sym, uint16_t keycode)
1765{
1766 /* if the user specifies a keyboard layout, always use it */
1767 if (keyboard_layout)
1768 key_event(vs, down, sym);
1769 else
1770 do_key_event(vs, down, keycode, sym);
bdbd7676
FB		 1771}
1772
24236869 1773static void framebuffer_update_request(VncState *vs, int incremental,
28a76be8
AL		 1774 int x_position, int y_position,
1775 int w, int h)
24236869 1776{
6ed391bf 1777 int i;
d39fa6d8
GH		 1778 const size_t width = surface_width(vs->vd->ds) / 16;
1779 const size_t height = surface_height(vs->vd->ds);
6ed391bf 1780
d39fa6d8
GH		 1781 if (y_position > height) {
1782 y_position = height;
1783 }
1784 if (y_position + h >= height) {
1785 h = height - y_position;
1786 }
cf2d385c 1787
24236869
FB		 1788 vs->need_update = 1;
1789 if (!incremental) {
24cf0a6e 1790 vs->force_update = 1;
28a76be8 1791 for (i = 0; i < h; i++) {
6ed391bf
WC		 1792 bitmap_set(vs->dirty[y_position + i], 0, width);
1793 bitmap_clear(vs->dirty[y_position + i], width,
a0843a68 1794 VNC_DIRTY_BITS - width);
28a76be8 1795 }
24236869
FB		 1796 }
1797}
1798
9ca313aa
AL		 1799static void send_ext_key_event_ack(VncState *vs)
1800{
bd023f95 1801 vnc_lock_output(vs);
46a183da 1802 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
9ca313aa
AL		 1803 vnc_write_u8(vs, 0);
1804 vnc_write_u16(vs, 1);
d39fa6d8
GH		 1805 vnc_framebuffer_update(vs, 0, 0,
1806 surface_width(vs->vd->ds),
1807 surface_height(vs->vd->ds),
29fa4ed9 1808 VNC_ENCODING_EXT_KEY_EVENT);
bd023f95 1809 vnc_unlock_output(vs);
9ca313aa
AL		 1810 vnc_flush(vs);
1811}
1812
429a8ed3 1813static void send_ext_audio_ack(VncState *vs)
1814{
bd023f95 1815 vnc_lock_output(vs);
46a183da 1816 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
429a8ed3 1817 vnc_write_u8(vs, 0);
1818 vnc_write_u16(vs, 1);
d39fa6d8
GH		 1819 vnc_framebuffer_update(vs, 0, 0,
1820 surface_width(vs->vd->ds),
1821 surface_height(vs->vd->ds),
29fa4ed9 1822 VNC_ENCODING_AUDIO);
bd023f95 1823 vnc_unlock_output(vs);
429a8ed3 1824 vnc_flush(vs);
1825}
1826
24236869
FB		 1827static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
1828{
1829 int i;
29fa4ed9 1830 unsigned int enc = 0;
24236869 1831
29fa4ed9 1832 vs->features = 0;
a9f20d31 1833 vs->vnc_encoding = 0;
d1af0e05
CC		 1834 vs->tight.compression = 9;
1835 vs->tight.quality = -1; /* Lossless by default */
564c337e 1836 vs->absolute = -1;
24236869 1837
8a0f0d0c
CC		 1838 /*
1839 * Start from the end because the encodings are sent in order of preference.
e5bed759 1840 * This way the preferred encoding (first encoding defined in the array)
8a0f0d0c
CC		 1841 * will be set at the end of the loop.
1842 */
24236869 1843 for (i = n_encodings - 1; i >= 0; i--) {
29fa4ed9
AL		 1844 enc = encodings[i];
1845 switch (enc) {
1846 case VNC_ENCODING_RAW:
a9f20d31 1847 vs->vnc_encoding = enc;
29fa4ed9
AL		 1848 break;
1849 case VNC_ENCODING_COPYRECT:
753b4053 1850 vs->features |= VNC_FEATURE_COPYRECT_MASK;
29fa4ed9
AL		 1851 break;
1852 case VNC_ENCODING_HEXTILE:
1853 vs->features |= VNC_FEATURE_HEXTILE_MASK;
a9f20d31 1854 vs->vnc_encoding = enc;
29fa4ed9 1855 break;
380282b0
CC		 1856 case VNC_ENCODING_TIGHT:
1857 vs->features |= VNC_FEATURE_TIGHT_MASK;
1858 vs->vnc_encoding = enc;
1859 break;
fe3e7f2d 1860#ifdef CONFIG_VNC_PNG
efe556ad
CC		 1861 case VNC_ENCODING_TIGHT_PNG:
1862 vs->features |= VNC_FEATURE_TIGHT_PNG_MASK;
1863 vs->vnc_encoding = enc;
1864 break;
fe3e7f2d 1865#endif
059cef40
AL		 1866 case VNC_ENCODING_ZLIB:
1867 vs->features |= VNC_FEATURE_ZLIB_MASK;
a9f20d31 1868 vs->vnc_encoding = enc;
059cef40 1869 break;
148954fa
CC		 1870 case VNC_ENCODING_ZRLE:
1871 vs->features |= VNC_FEATURE_ZRLE_MASK;
1872 vs->vnc_encoding = enc;
1873 break;
1874 case VNC_ENCODING_ZYWRLE:
1875 vs->features |= VNC_FEATURE_ZYWRLE_MASK;
1876 vs->vnc_encoding = enc;
1877 break;
29fa4ed9
AL		 1878 case VNC_ENCODING_DESKTOPRESIZE:
1879 vs->features |= VNC_FEATURE_RESIZE_MASK;
1880 break;
1881 case VNC_ENCODING_POINTER_TYPE_CHANGE:
1882 vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK;
1883 break;
d467b679
GH		 1884 case VNC_ENCODING_RICH_CURSOR:
1885 vs->features |= VNC_FEATURE_RICH_CURSOR_MASK;
1886 break;
29fa4ed9 1887 case VNC_ENCODING_EXT_KEY_EVENT:
9ca313aa
AL		 1888 send_ext_key_event_ack(vs);
1889 break;
29fa4ed9 1890 case VNC_ENCODING_AUDIO:
429a8ed3 1891 send_ext_audio_ack(vs);
1892 break;
29fa4ed9
AL		 1893 case VNC_ENCODING_WMVi:
1894 vs->features |= VNC_FEATURE_WMVI_MASK;
ca4cca4d 1895 break;
fb437313 1896 case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9:
d1af0e05 1897 vs->tight.compression = (enc & 0x0F);
fb437313
AL		 1898 break;
1899 case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9:
b31f519e
CC		 1900 if (vs->vd->lossy) {
1901 vs->tight.quality = (enc & 0x0F);
1902 }
fb437313 1903 break;
29fa4ed9
AL		 1904 default:
1905 VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc);
1906 break;
1907 }
24236869 1908 }
6356e472 1909 vnc_desktop_resize(vs);
9e8dd451 1910 check_pointer_type_change(&vs->mouse_mode_notifier, NULL);
24236869
FB		 1911}
1912
6cec5487
AL		 1913static void set_pixel_conversion(VncState *vs)
1914{
9f64916d
GH		 1915 pixman_format_code_t fmt = qemu_pixman_get_format(&vs->client_pf);
1916
1917 if (fmt == VNC_SERVER_FB_FORMAT) {
6cec5487 1918 vs->write_pixels = vnc_write_pixels_copy;
70a4568f 1919 vnc_hextile_set_pixel_conversion(vs, 0);
6cec5487
AL		 1920 } else {
1921 vs->write_pixels = vnc_write_pixels_generic;
70a4568f 1922 vnc_hextile_set_pixel_conversion(vs, 1);
6cec5487
AL		 1923 }
1924}
1925
24236869 1926static void set_pixel_format(VncState *vs,
28a76be8
AL		 1927 int bits_per_pixel, int depth,
1928 int big_endian_flag, int true_color_flag,
1929 int red_max, int green_max, int blue_max,
1930 int red_shift, int green_shift, int blue_shift)
24236869 1931{
3512779a 1932 if (!true_color_flag) {
28a76be8 1933 vnc_client_error(vs);
3512779a
FB		 1934 return;
1935 }
24236869 1936
9f64916d
GH		 1937 vs->client_pf.rmax = red_max;
1938 vs->client_pf.rbits = hweight_long(red_max);
1939 vs->client_pf.rshift = red_shift;
1940 vs->client_pf.rmask = red_max << red_shift;
1941 vs->client_pf.gmax = green_max;
1942 vs->client_pf.gbits = hweight_long(green_max);
1943 vs->client_pf.gshift = green_shift;
1944 vs->client_pf.gmask = green_max << green_shift;
1945 vs->client_pf.bmax = blue_max;
1946 vs->client_pf.bbits = hweight_long(blue_max);
1947 vs->client_pf.bshift = blue_shift;
1948 vs->client_pf.bmask = blue_max << blue_shift;
1949 vs->client_pf.bits_per_pixel = bits_per_pixel;
1950 vs->client_pf.bytes_per_pixel = bits_per_pixel / 8;
1951 vs->client_pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel;
1952 vs->client_be = big_endian_flag;
6cec5487
AL		 1953
1954 set_pixel_conversion(vs);
24236869 1955
1dbfa005
GH		 1956 graphic_hw_invalidate(NULL);
1957 graphic_hw_update(NULL);
24236869
FB		 1958}
1959
ca4cca4d
AL		 1960static void pixel_format_message (VncState *vs) {
1961 char pad[3] = { 0, 0, 0 };
1962
9f64916d
GH		 1963 vs->client_pf = qemu_default_pixelformat(32);
1964
1965 vnc_write_u8(vs, vs->client_pf.bits_per_pixel); /* bits-per-pixel */
1966 vnc_write_u8(vs, vs->client_pf.depth); /* depth */
ca4cca4d 1967
e2542fe2 1968#ifdef HOST_WORDS_BIGENDIAN
ca4cca4d
AL		 1969 vnc_write_u8(vs, 1); /* big-endian-flag */
1970#else
1971 vnc_write_u8(vs, 0); /* big-endian-flag */
1972#endif
1973 vnc_write_u8(vs, 1); /* true-color-flag */
9f64916d
GH		 1974 vnc_write_u16(vs, vs->client_pf.rmax); /* red-max */
1975 vnc_write_u16(vs, vs->client_pf.gmax); /* green-max */
1976 vnc_write_u16(vs, vs->client_pf.bmax); /* blue-max */
1977 vnc_write_u8(vs, vs->client_pf.rshift); /* red-shift */
1978 vnc_write_u8(vs, vs->client_pf.gshift); /* green-shift */
1979 vnc_write_u8(vs, vs->client_pf.bshift); /* blue-shift */
1980 vnc_write(vs, pad, 3); /* padding */
70a4568f
CC		 1981
1982 vnc_hextile_set_pixel_conversion(vs, 0);
ca4cca4d 1983 vs->write_pixels = vnc_write_pixels_copy;
ca4cca4d
AL		 1984}
1985
753b4053 1986static void vnc_colordepth(VncState *vs)
7eac3a87 1987{
753b4053 1988 if (vnc_has_feature(vs, VNC_FEATURE_WMVI)) {
ca4cca4d 1989 /* Sending a WMVi message to notify the client*/
bd023f95 1990 vnc_lock_output(vs);
46a183da 1991 vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
ca4cca4d
AL		 1992 vnc_write_u8(vs, 0);
1993 vnc_write_u16(vs, 1); /* number of rects */
d39fa6d8
GH		 1994 vnc_framebuffer_update(vs, 0, 0,
1995 surface_width(vs->vd->ds),
1996 surface_height(vs->vd->ds),
1997 VNC_ENCODING_WMVi);
ca4cca4d 1998 pixel_format_message(vs);
bd023f95 1999 vnc_unlock_output(vs);
ca4cca4d 2000 vnc_flush(vs);
7eac3a87 2001 } else {
6cec5487 2002 set_pixel_conversion(vs);
7eac3a87
AL		 2003 }
2004}
2005
60fe76f3 2006static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
24236869
FB		 2007{
2008 int i;
2009 uint16_t limit;
2430ffe4
SS		 2010 VncDisplay *vd = vs->vd;
2011
2012 if (data[0] > 3) {
0f7b2864 2013 update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
2430ffe4 2014 }
24236869
FB		 2015
2016 switch (data[0]) {
46a183da 2017 case VNC_MSG_CLIENT_SET_PIXEL_FORMAT:
28a76be8
AL		 2018 if (len == 1)
2019 return 20;
2020
2021 set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5),
2022 read_u8(data, 6), read_u8(data, 7),
2023 read_u16(data, 8), read_u16(data, 10),
2024 read_u16(data, 12), read_u8(data, 14),
2025 read_u8(data, 15), read_u8(data, 16));
2026 break;
46a183da 2027 case VNC_MSG_CLIENT_SET_ENCODINGS:
28a76be8
AL		 2028 if (len == 1)
2029 return 4;
24236869 2030
28a76be8 2031 if (len == 4) {
69dd5c9f
AL		 2032 limit = read_u16(data, 2);
2033 if (limit > 0)
2034 return 4 + (limit * 4);
2035 } else
2036 limit = read_u16(data, 2);
24236869 2037
28a76be8
AL		 2038 for (i = 0; i < limit; i++) {
2039 int32_t val = read_s32(data, 4 + (i * 4));
2040 memcpy(data + 4 + (i * 4), &val, sizeof(val));
2041 }
24236869 2042
28a76be8
AL		 2043 set_encodings(vs, (int32_t *)(data + 4), limit);
2044 break;
46a183da 2045 case VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST:
28a76be8
AL		 2046 if (len == 1)
2047 return 10;
24236869 2048
28a76be8
AL		 2049 framebuffer_update_request(vs,
2050 read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
2051 read_u16(data, 6), read_u16(data, 8));
2052 break;
46a183da 2053 case VNC_MSG_CLIENT_KEY_EVENT:
28a76be8
AL		 2054 if (len == 1)
2055 return 8;
24236869 2056
28a76be8
AL		 2057 key_event(vs, read_u8(data, 1), read_u32(data, 4));
2058 break;
46a183da 2059 case VNC_MSG_CLIENT_POINTER_EVENT:
28a76be8
AL		 2060 if (len == 1)
2061 return 6;
24236869 2062
28a76be8
AL		 2063 pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
2064 break;
46a183da 2065 case VNC_MSG_CLIENT_CUT_TEXT:
28a76be8
AL		 2066 if (len == 1)
2067 return 8;
24236869 2068
28a76be8 2069 if (len == 8) {
baa7666c
TS		 2070 uint32_t dlen = read_u32(data, 4);
2071 if (dlen > 0)
2072 return 8 + dlen;
2073 }
24236869 2074
28a76be8
AL		 2075 client_cut_text(vs, read_u32(data, 4), data + 8);
2076 break;
46a183da 2077 case VNC_MSG_CLIENT_QEMU:
9ca313aa
AL		 2078 if (len == 1)
2079 return 2;
2080
2081 switch (read_u8(data, 1)) {
46a183da 2082 case VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT:
9ca313aa
AL		 2083 if (len == 2)
2084 return 12;
2085
2086 ext_key_event(vs, read_u16(data, 2),
2087 read_u32(data, 4), read_u32(data, 8));
2088 break;
46a183da 2089 case VNC_MSG_CLIENT_QEMU_AUDIO:
429a8ed3 2090 if (len == 2)
2091 return 4;
2092
2093 switch (read_u16 (data, 2)) {
46a183da 2094 case VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE:
429a8ed3 2095 audio_add(vs);
2096 break;
46a183da 2097 case VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE:
429a8ed3 2098 audio_del(vs);
2099 break;
46a183da 2100 case VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT:
429a8ed3 2101 if (len == 4)
2102 return 10;
2103 switch (read_u8(data, 4)) {
2104 case 0: vs->as.fmt = AUD_FMT_U8; break;
2105 case 1: vs->as.fmt = AUD_FMT_S8; break;
2106 case 2: vs->as.fmt = AUD_FMT_U16; break;
2107 case 3: vs->as.fmt = AUD_FMT_S16; break;
2108 case 4: vs->as.fmt = AUD_FMT_U32; break;
2109 case 5: vs->as.fmt = AUD_FMT_S32; break;
2110 default:
2111 printf("Invalid audio format %d\n", read_u8(data, 4));
2112 vnc_client_error(vs);
2113 break;
2114 }
2115 vs->as.nchannels = read_u8(data, 5);
2116 if (vs->as.nchannels != 1 && vs->as.nchannels != 2) {
2117 printf("Invalid audio channel coount %d\n",
2118 read_u8(data, 5));
2119 vnc_client_error(vs);
2120 break;
2121 }
2122 vs->as.freq = read_u32(data, 6);
2123 break;
2124 default:
2125 printf ("Invalid audio message %d\n", read_u8(data, 4));
2126 vnc_client_error(vs);
2127 break;
2128 }
2129 break;
2130
9ca313aa
AL		 2131 default:
2132 printf("Msg: %d\n", read_u16(data, 0));
2133 vnc_client_error(vs);
2134 break;
2135 }
2136 break;
24236869 2137 default:
28a76be8
AL		 2138 printf("Msg: %d\n", data[0]);
2139 vnc_client_error(vs);
2140 break;
24236869 2141 }
5fafdf24 2142
24236869
FB		 2143 vnc_read_when(vs, protocol_client_msg, 1);
2144 return 0;
2145}
2146
60fe76f3 2147static int protocol_client_init(VncState *vs, uint8_t *data, size_t len)
24236869 2148{
c35734b2 2149 char buf[1024];
8cf36489 2150 VncShareMode mode;
c35734b2 2151 int size;
24236869 2152
8cf36489
GH		 2153 mode = data[0] ? VNC_SHARE_MODE_SHARED : VNC_SHARE_MODE_EXCLUSIVE;
2154 switch (vs->vd->share_policy) {
2155 case VNC_SHARE_POLICY_IGNORE:
2156 /*
2157 * Ignore the shared flag. Nothing to do here.
2158 *
2159 * Doesn't conform to the rfb spec but is traditional qemu
2160 * behavior, thus left here as option for compatibility
2161 * reasons.
2162 */
2163 break;
2164 case VNC_SHARE_POLICY_ALLOW_EXCLUSIVE:
2165 /*
2166 * Policy: Allow clients ask for exclusive access.
2167 *
2168 * Implementation: When a client asks for exclusive access,
2169 * disconnect all others. Shared connects are allowed as long
2170 * as no exclusive connection exists.
2171 *
2172 * This is how the rfb spec suggests to handle the shared flag.
2173 */
2174 if (mode == VNC_SHARE_MODE_EXCLUSIVE) {
2175 VncState *client;
2176 QTAILQ_FOREACH(client, &vs->vd->clients, next) {
2177 if (vs == client) {
2178 continue;
2179 }
2180 if (client->share_mode != VNC_SHARE_MODE_EXCLUSIVE &&
2181 client->share_mode != VNC_SHARE_MODE_SHARED) {
2182 continue;
2183 }
2184 vnc_disconnect_start(client);
2185 }
2186 }
2187 if (mode == VNC_SHARE_MODE_SHARED) {
2188 if (vs->vd->num_exclusive > 0) {
2189 vnc_disconnect_start(vs);
2190 return 0;
2191 }
2192 }
2193 break;
2194 case VNC_SHARE_POLICY_FORCE_SHARED:
2195 /*
2196 * Policy: Shared connects only.
2197 * Implementation: Disallow clients asking for exclusive access.
2198 *
2199 * Useful for shared desktop sessions where you don't want
2200 * someone forgetting to say -shared when running the vnc
2201 * client disconnect everybody else.
2202 */
2203 if (mode == VNC_SHARE_MODE_EXCLUSIVE) {
2204 vnc_disconnect_start(vs);
2205 return 0;
2206 }
2207 break;
2208 }
2209 vnc_set_share_mode(vs, mode);
2210
d39fa6d8
GH		 2211 vs->client_width = surface_width(vs->vd->ds);
2212 vs->client_height = surface_height(vs->vd->ds);
5862d195
GH		 2213 vnc_write_u16(vs, vs->client_width);
2214 vnc_write_u16(vs, vs->client_height);
24236869 2215
ca4cca4d 2216 pixel_format_message(vs);
24236869 2217
c35734b2
TS		 2218 if (qemu_name)
2219 size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name);
2220 else
2221 size = snprintf(buf, sizeof(buf), "QEMU");
2222
2223 vnc_write_u32(vs, size);
2224 vnc_write(vs, buf, size);
24236869
FB		 2225 vnc_flush(vs);
2226
4a80dba3 2227 vnc_client_cache_auth(vs);
0d2ed46a 2228 vnc_qmp_event(vs, QEVENT_VNC_INITIALIZED);
4a80dba3 2229
24236869
FB		 2230 vnc_read_when(vs, protocol_client_msg, 1);
2231
2232 return 0;
2233}
2234
5fb6c7a8
AL		 2235void start_client_init(VncState *vs)
2236{
2237 vnc_read_when(vs, protocol_client_init, 1);
2238}
2239
70848515
TS		 2240static void make_challenge(VncState *vs)
2241{
2242 int i;
2243
2244 srand(time(NULL)+getpid()+getpid()*987654+rand());
2245
2246 for (i = 0 ; i < sizeof(vs->challenge) ; i++)
2247 vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0));
2248}
2249
60fe76f3 2250static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len)
70848515 2251{
60fe76f3 2252 unsigned char response[VNC_AUTH_CHALLENGE_SIZE];
70848515 2253 int i, j, pwlen;
60fe76f3 2254 unsigned char key[8];
3c9405a0 2255 time_t now = time(NULL);
70848515 2256
1cd20f8b 2257 if (!vs->vd->password) {
28a76be8 2258 VNC_DEBUG("No password configured on server");
6bffdf0f 2259 goto reject;
70848515 2260 }
3c9405a0
GH		 2261 if (vs->vd->expires < now) {
2262 VNC_DEBUG("Password is expired");
2263 goto reject;
2264 }
70848515
TS		 2265
2266 memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE);
2267
2268 /* Calculate the expected challenge response */
753b4053 2269 pwlen = strlen(vs->vd->password);
70848515 2270 for (i=0; i<sizeof(key); i++)
753b4053 2271 key[i] = i<pwlen ? vs->vd->password[i] : 0;
70848515
TS		 2272 deskey(key, EN0);
2273 for (j = 0; j < VNC_AUTH_CHALLENGE_SIZE; j += 8)
2274 des(response+j, response+j);
2275
2276 /* Compare expected vs actual challenge response */
2277 if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) {
e5bed759 2278 VNC_DEBUG("Client challenge response did not match\n");
6bffdf0f 2279 goto reject;
70848515 2280 } else {
28a76be8
AL		 2281 VNC_DEBUG("Accepting VNC challenge response\n");
2282 vnc_write_u32(vs, 0); /* Accept auth */
2283 vnc_flush(vs);
70848515 2284
5fb6c7a8 2285 start_client_init(vs);
70848515
TS		 2286 }
2287 return 0;
6bffdf0f
GH		 2288
2289reject:
2290 vnc_write_u32(vs, 1); /* Reject auth */
2291 if (vs->minor >= 8) {
2292 static const char err[] = "Authentication failed";
2293 vnc_write_u32(vs, sizeof(err));
2294 vnc_write(vs, err, sizeof(err));
2295 }
2296 vnc_flush(vs);
2297 vnc_client_error(vs);
2298 return 0;
70848515
TS		 2299}
2300
5fb6c7a8 2301void start_auth_vnc(VncState *vs)
70848515
TS		 2302{
2303 make_challenge(vs);
2304 /* Send client a 'random' challenge */
2305 vnc_write(vs, vs->challenge, sizeof(vs->challenge));
2306 vnc_flush(vs);
2307
2308 vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge));
469b15c6
TS		 2309}
2310
2311
60fe76f3 2312static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len)
70848515
TS		 2313{
2314 /* We only advertise 1 auth scheme at a time, so client
2315 * must pick the one we sent. Verify this */
7e7e2ebc 2316 if (data[0] != vs->auth) { /* Reject auth */
1263b7d6 2317 VNC_DEBUG("Reject auth %d because it didn't match advertized\n", (int)data[0]);
70848515
TS		 2318 vnc_write_u32(vs, 1);
2319 if (vs->minor >= 8) {
2320 static const char err[] = "Authentication failed";
2321 vnc_write_u32(vs, sizeof(err));
2322 vnc_write(vs, err, sizeof(err));
2323 }
2324 vnc_client_error(vs);
2325 } else { /* Accept requested auth */
2326 VNC_DEBUG("Client requested auth %d\n", (int)data[0]);
7e7e2ebc 2327 switch (vs->auth) {
70848515
TS		 2328 case VNC_AUTH_NONE:
2329 VNC_DEBUG("Accept auth none\n");
a26c97ad
AZ		 2330 if (vs->minor >= 8) {
2331 vnc_write_u32(vs, 0); /* Accept auth completion */
2332 vnc_flush(vs);
2333 }
5fb6c7a8 2334 start_client_init(vs);
70848515
TS		 2335 break;
2336
2337 case VNC_AUTH_VNC:
2338 VNC_DEBUG("Start VNC auth\n");
5fb6c7a8
AL		 2339 start_auth_vnc(vs);
2340 break;
70848515 2341
eb38c52c 2342#ifdef CONFIG_VNC_TLS
8d5d2d4c 2343 case VNC_AUTH_VENCRYPT:
3a93113a 2344 VNC_DEBUG("Accept VeNCrypt auth\n");
5fb6c7a8
AL		 2345 start_auth_vencrypt(vs);
2346 break;
8d5d2d4c
TS		 2347#endif /* CONFIG_VNC_TLS */
2348
2f9606b3
AL		 2349#ifdef CONFIG_VNC_SASL
2350 case VNC_AUTH_SASL:
2351 VNC_DEBUG("Accept SASL auth\n");
2352 start_auth_sasl(vs);
2353 break;
2354#endif /* CONFIG_VNC_SASL */
2355
70848515 2356 default: /* Should not be possible, but just in case */
7e7e2ebc 2357 VNC_DEBUG("Reject auth %d server code bug\n", vs->auth);
70848515
TS		 2358 vnc_write_u8(vs, 1);
2359 if (vs->minor >= 8) {
2360 static const char err[] = "Authentication failed";
2361 vnc_write_u32(vs, sizeof(err));
2362 vnc_write(vs, err, sizeof(err));
2363 }
2364 vnc_client_error(vs);
2365 }
2366 }
2367 return 0;
2368}
2369
60fe76f3 2370static int protocol_version(VncState *vs, uint8_t *version, size_t len)
24236869
FB		 2371{
2372 char local[13];
24236869
FB		 2373
2374 memcpy(local, version, 12);
2375 local[12] = 0;
2376
70848515 2377 if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) {
28a76be8
AL		 2378 VNC_DEBUG("Malformed protocol version %s\n", local);
2379 vnc_client_error(vs);
2380 return 0;
24236869 2381 }
70848515
TS		 2382 VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor);
2383 if (vs->major != 3 ||
28a76be8
AL		 2384 (vs->minor != 3 &&
2385 vs->minor != 4 &&
2386 vs->minor != 5 &&
2387 vs->minor != 7 &&
2388 vs->minor != 8)) {
2389 VNC_DEBUG("Unsupported client version\n");
2390 vnc_write_u32(vs, VNC_AUTH_INVALID);
2391 vnc_flush(vs);
2392 vnc_client_error(vs);
2393 return 0;
70848515 2394 }
b0566f4f 2395 /* Some broken clients report v3.4 or v3.5, which spec requires to be treated
70848515
TS		 2396 * as equivalent to v3.3 by servers
2397 */
b0566f4f 2398 if (vs->minor == 4 || vs->minor == 5)
28a76be8 2399 vs->minor = 3;
70848515
TS		 2400
2401 if (vs->minor == 3) {
7e7e2ebc 2402 if (vs->auth == VNC_AUTH_NONE) {
70848515 2403 VNC_DEBUG("Tell client auth none\n");
7e7e2ebc 2404 vnc_write_u32(vs, vs->auth);
70848515 2405 vnc_flush(vs);
28a76be8 2406 start_client_init(vs);
7e7e2ebc 2407 } else if (vs->auth == VNC_AUTH_VNC) {
70848515 2408 VNC_DEBUG("Tell client VNC auth\n");
7e7e2ebc 2409 vnc_write_u32(vs, vs->auth);
70848515
TS		 2410 vnc_flush(vs);
2411 start_auth_vnc(vs);
2412 } else {
7e7e2ebc 2413 VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->auth);
70848515
TS		 2414 vnc_write_u32(vs, VNC_AUTH_INVALID);
2415 vnc_flush(vs);
2416 vnc_client_error(vs);
2417 }
2418 } else {
7e7e2ebc 2419 VNC_DEBUG("Telling client we support auth %d\n", vs->auth);
28a76be8 2420 vnc_write_u8(vs, 1); /* num auth */
7e7e2ebc 2421 vnc_write_u8(vs, vs->auth);
28a76be8
AL		 2422 vnc_read_when(vs, protocol_client_auth, 1);
2423 vnc_flush(vs);
70848515 2424 }
24236869
FB		 2425
2426 return 0;
2427}
2428
999342a0
CC		 2429static VncRectStat *vnc_stat_rect(VncDisplay *vd, int x, int y)
2430{
2431 struct VncSurface *vs = &vd->guest;
2432
2433 return &vs->stats[y / VNC_STAT_RECT][x / VNC_STAT_RECT];
2434}
2435
7d964c9d
CC		 2436void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h)
2437{
2438 int i, j;
2439
2440 w = (x + w) / VNC_STAT_RECT;
2441 h = (y + h) / VNC_STAT_RECT;
2442 x /= VNC_STAT_RECT;
2443 y /= VNC_STAT_RECT;
2444
207f328a
CC		 2445 for (j = y; j <= h; j++) {
2446 for (i = x; i <= w; i++) {
7d964c9d
CC		 2447 vs->lossy_rect[j][i] = 1;
2448 }
2449 }
2450}
2451
2452static int vnc_refresh_lossy_rect(VncDisplay *vd, int x, int y)
2453{
2454 VncState *vs;
2455 int sty = y / VNC_STAT_RECT;
2456 int stx = x / VNC_STAT_RECT;
2457 int has_dirty = 0;
2458
2459 y = y / VNC_STAT_RECT * VNC_STAT_RECT;
2460 x = x / VNC_STAT_RECT * VNC_STAT_RECT;
2461
2462 QTAILQ_FOREACH(vs, &vd->clients, next) {
bc2429b9 2463 int j;
7d964c9d
CC		 2464
2465 /* kernel send buffers are full -> refresh later */
2466 if (vs->output.offset) {
2467 continue;
2468 }
2469
2470 if (!vs->lossy_rect[sty][stx]) {
2471 continue;
2472 }
207f328a 2473
7d964c9d
CC		 2474 vs->lossy_rect[sty][stx] = 0;
2475 for (j = 0; j < VNC_STAT_RECT; ++j) {
bc2429b9 2476 bitmap_set(vs->dirty[y + j], x / 16, VNC_STAT_RECT / 16);
7d964c9d
CC		 2477 }
2478 has_dirty++;
2479 }
207f328a 2480
7d964c9d
CC		 2481 return has_dirty;
2482}
2483
2484static int vnc_update_stats(VncDisplay *vd, struct timeval * tv)
999342a0 2485{
9f64916d
GH		 2486 int width = pixman_image_get_width(vd->guest.fb);
2487 int height = pixman_image_get_height(vd->guest.fb);
999342a0
CC		 2488 int x, y;
2489 struct timeval res;
7d964c9d 2490 int has_dirty = 0;
999342a0 2491
9f64916d
GH		 2492 for (y = 0; y < height; y += VNC_STAT_RECT) {
2493 for (x = 0; x < width; x += VNC_STAT_RECT) {
999342a0
CC		 2494 VncRectStat *rect = vnc_stat_rect(vd, x, y);
2495
2496 rect->updated = false;
2497 }
2498 }
2499
ad620c29 2500 qemu_timersub(tv, &VNC_REFRESH_STATS, &res);
999342a0
CC		 2501
2502 if (timercmp(&vd->guest.last_freq_check, &res, >)) {
7d964c9d 2503 return has_dirty;
999342a0
CC		 2504 }
2505 vd->guest.last_freq_check = *tv;
2506
9f64916d
GH		 2507 for (y = 0; y < height; y += VNC_STAT_RECT) {
2508 for (x = 0; x < width; x += VNC_STAT_RECT) {
999342a0
CC		 2509 VncRectStat *rect= vnc_stat_rect(vd, x, y);
2510 int count = ARRAY_SIZE(rect->times);
2511 struct timeval min, max;
2512
2513 if (!timerisset(&rect->times[count - 1])) {
2514 continue ;
2515 }
2516
2517 max = rect->times[(rect->idx + count - 1) % count];
ad620c29 2518 qemu_timersub(tv, &max, &res);
999342a0
CC		 2519
2520 if (timercmp(&res, &VNC_REFRESH_LOSSY, >)) {
2521 rect->freq = 0;
7d964c9d 2522 has_dirty += vnc_refresh_lossy_rect(vd, x, y);
999342a0
CC		 2523 memset(rect->times, 0, sizeof (rect->times));
2524 continue ;
2525 }
2526
2527 min = rect->times[rect->idx];
2528 max = rect->times[(rect->idx + count - 1) % count];
ad620c29 2529 qemu_timersub(&max, &min, &res);
999342a0
CC		 2530
2531 rect->freq = res.tv_sec + res.tv_usec / 1000000.;
2532 rect->freq /= count;
2533 rect->freq = 1. / rect->freq;
2534 }
2535 }
7d964c9d 2536 return has_dirty;
999342a0
CC		 2537}
2538
2539double vnc_update_freq(VncState *vs, int x, int y, int w, int h)
2540{
2541 int i, j;
2542 double total = 0;
2543 int num = 0;
2544
2545 x = (x / VNC_STAT_RECT) * VNC_STAT_RECT;
2546 y = (y / VNC_STAT_RECT) * VNC_STAT_RECT;
2547
2548 for (j = y; j <= y + h; j += VNC_STAT_RECT) {
2549 for (i = x; i <= x + w; i += VNC_STAT_RECT) {
2550 total += vnc_stat_rect(vs->vd, i, j)->freq;
2551 num++;
2552 }
2553 }
2554
2555 if (num) {
2556 return total / num;
2557 } else {
2558 return 0;
2559 }
2560}
2561
2562static void vnc_rect_updated(VncDisplay *vd, int x, int y, struct timeval * tv)
2563{
2564 VncRectStat *rect;
2565
2566 rect = vnc_stat_rect(vd, x, y);
2567 if (rect->updated) {
2568 return ;
2569 }
2570 rect->times[rect->idx] = *tv;
2571 rect->idx = (rect->idx + 1) % ARRAY_SIZE(rect->times);
2572 rect->updated = true;
2573}
2574
1fc62412
SS		 2575static int vnc_refresh_server_surface(VncDisplay *vd)
2576{
9f64916d
GH		 2577 int width = pixman_image_get_width(vd->guest.fb);
2578 int height = pixman_image_get_height(vd->guest.fb);
1fc62412
SS		 2579 int y;
2580 uint8_t *guest_row;
2581 uint8_t *server_row;
2582 int cmp_bytes;
41b4bef6 2583 VncState *vs;
1fc62412 2584 int has_dirty = 0;
9f64916d 2585 pixman_image_t *tmpbuf = NULL;
1fc62412 2586
80e0c8c3 2587 struct timeval tv = { 0, 0 };
999342a0 2588
80e0c8c3
CC		 2589 if (!vd->non_adaptive) {
2590 gettimeofday(&tv, NULL);
2591 has_dirty = vnc_update_stats(vd, &tv);
2592 }
999342a0 2593
1fc62412
SS		 2594 /*
2595 * Walk through the guest dirty map.
2596 * Check and copy modified bits from guest to server surface.
2597 * Update server dirty map.
2598 */
9f64916d
GH		 2599 cmp_bytes = 64;
2600 if (cmp_bytes > vnc_server_fb_stride(vd)) {
2601 cmp_bytes = vnc_server_fb_stride(vd);
2602 }
2603 if (vd->guest.format != VNC_SERVER_FB_FORMAT) {
2604 int width = pixman_image_get_width(vd->server);
2605 tmpbuf = qemu_pixman_linebuf_create(VNC_SERVER_FB_FORMAT, width);
9e4dd565 2606 }
9f64916d
GH		 2607 guest_row = (uint8_t *)pixman_image_get_data(vd->guest.fb);
2608 server_row = (uint8_t *)pixman_image_get_data(vd->server);
2609 for (y = 0; y < height; y++) {
23bfe28f 2610 if (!bitmap_empty(vd->guest.dirty[y], VNC_DIRTY_BITS)) {
1fc62412
SS		 2611 int x;
2612 uint8_t *guest_ptr;
2613 uint8_t *server_ptr;
2614
9f64916d 2615 if (vd->guest.format != VNC_SERVER_FB_FORMAT) {
bc210eb1 2616 qemu_pixman_linebuf_fill(tmpbuf, vd->guest.fb, width, 0, y);
9f64916d
GH		 2617 guest_ptr = (uint8_t *)pixman_image_get_data(tmpbuf);
2618 } else {
2619 guest_ptr = guest_row;
2620 }
1fc62412
SS		 2621 server_ptr = server_row;
2622
9f64916d 2623 for (x = 0; x + 15 < width;
1fc62412 2624 x += 16, guest_ptr += cmp_bytes, server_ptr += cmp_bytes) {
bc2429b9 2625 if (!test_and_clear_bit((x / 16), vd->guest.dirty[y]))
1fc62412 2626 continue;
1fc62412
SS		 2627 if (memcmp(server_ptr, guest_ptr, cmp_bytes) == 0)
2628 continue;
2629 memcpy(server_ptr, guest_ptr, cmp_bytes);
80e0c8c3
CC		 2630 if (!vd->non_adaptive)
2631 vnc_rect_updated(vd, x, y, &tv);
41b4bef6 2632 QTAILQ_FOREACH(vs, &vd->clients, next) {
bc2429b9 2633 set_bit((x / 16), vs->dirty[y]);
1fc62412
SS		 2634 }
2635 has_dirty++;
2636 }
2637 }
9f64916d
GH		 2638 guest_row += pixman_image_get_stride(vd->guest.fb);
2639 server_row += pixman_image_get_stride(vd->server);
1fc62412 2640 }
9f64916d 2641 qemu_pixman_image_unref(tmpbuf);
1fc62412
SS		 2642 return has_dirty;
2643}
2644
0f7b2864 2645static void vnc_refresh(DisplayChangeListener *dcl)
703bc68f 2646{
0f7b2864 2647 VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
41b4bef6
AS		 2648 VncState *vs, *vn;
2649 int has_dirty, rects = 0;
703bc68f 2650
1dbfa005 2651 graphic_hw_update(NULL);
703bc68f 2652
bd023f95 2653 if (vnc_trylock_display(vd)) {
0f7b2864 2654 update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
bd023f95
CC		 2655 return;
2656 }
2657
1fc62412 2658 has_dirty = vnc_refresh_server_surface(vd);
bd023f95 2659 vnc_unlock_display(vd);
1fc62412 2660
41b4bef6 2661 QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) {
2430ffe4 2662 rects += vnc_update_client(vs, has_dirty);
6185c578 2663 /* vs might be free()ed here */
703bc68f 2664 }
bd023f95 2665
0f7b2864
GH		 2666 if (QTAILQ_EMPTY(&vd->clients)) {
2667 update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_MAX);
83755c17 2668 return;
0f7b2864 2669 }
703bc68f 2670
2430ffe4 2671 if (has_dirty && rects) {
0f7b2864
GH		 2672 vd->dcl.update_interval /= 2;
2673 if (vd->dcl.update_interval < VNC_REFRESH_INTERVAL_BASE) {
2674 vd->dcl.update_interval = VNC_REFRESH_INTERVAL_BASE;
2675 }
2430ffe4 2676 } else {
0f7b2864
GH		 2677 vd->dcl.update_interval += VNC_REFRESH_INTERVAL_INC;
2678 if (vd->dcl.update_interval > VNC_REFRESH_INTERVAL_MAX) {
2679 vd->dcl.update_interval = VNC_REFRESH_INTERVAL_MAX;
2680 }
703bc68f
SS		 2681 }
2682}
2683
7536ee4b 2684static void vnc_connect(VncDisplay *vd, int csock, int skipauth, bool websocket)
3aa3eea3 2685{
7267c094 2686 VncState *vs = g_malloc0(sizeof(VncState));
7d964c9d
CC		 2687 int i;
2688
753b4053 2689 vs->csock = csock;
7e7e2ebc
DB		 2690
2691 if (skipauth) {
2692 vs->auth = VNC_AUTH_NONE;
2693#ifdef CONFIG_VNC_TLS
2694 vs->subauth = VNC_AUTH_INVALID;
2695#endif
2696 } else {
2697 vs->auth = vd->auth;
2698#ifdef CONFIG_VNC_TLS
2699 vs->subauth = vd->subauth;
2700#endif
2701 }
2702
7267c094 2703 vs->lossy_rect = g_malloc0(VNC_STAT_ROWS * sizeof (*vs->lossy_rect));
7d964c9d 2704 for (i = 0; i < VNC_STAT_ROWS; ++i) {
7267c094 2705 vs->lossy_rect[i] = g_malloc0(VNC_STAT_COLS * sizeof (uint8_t));
7d964c9d 2706 }
753b4053
AL		 2707
2708 VNC_DEBUG("New client on socket %d\n", csock);
0f7b2864 2709 update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
f9e8cacc 2710 qemu_set_nonblock(vs->csock);
7536ee4b
TH		 2711#ifdef CONFIG_VNC_WS
2712 if (websocket) {
2713 vs->websocket = 1;
2714 qemu_set_fd_handler2(vs->csock, NULL, vncws_handshake_read, NULL, vs);
2715 } else
2716#endif /* CONFIG_VNC_WS */
2717 {
2718 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
2719 }
753b4053 2720
4a80dba3 2721 vnc_client_cache_addr(vs);
586153d9 2722 vnc_qmp_event(vs, QEVENT_VNC_CONNECTED);
8cf36489 2723 vnc_set_share_mode(vs, VNC_SHARE_MODE_CONNECTING);
4a80dba3 2724
753b4053 2725 vs->vd = vd;
7536ee4b
TH		 2726
2727#ifdef CONFIG_VNC_WS
2728 if (!vs->websocket)
2729#endif
2730 {
2731 vnc_init_state(vs);
2732 }
2733}
2734
2735void vnc_init_state(VncState *vs)
2736{
6fd8e79a 2737 vs->initialized = true;
7536ee4b
TH		 2738 VncDisplay *vd = vs->vd;
2739
753b4053
AL		 2740 vs->last_x = -1;
2741 vs->last_y = -1;
2742
2743 vs->as.freq = 44100;
2744 vs->as.nchannels = 2;
2745 vs->as.fmt = AUD_FMT_S16;
2746 vs->as.endianness = 0;
2747
bd023f95 2748 qemu_mutex_init(&vs->output_mutex);
175b2a6e 2749 vs->bh = qemu_bh_new(vnc_jobs_bh, vs);
bd023f95 2750
41b4bef6 2751 QTAILQ_INSERT_HEAD(&vd->clients, vs, next);
1fc62412 2752
1dbfa005 2753 graphic_hw_update(NULL);
1fc62412 2754
3aa3eea3
AZ		 2755 vnc_write(vs, "RFB 003.008\n", 12);
2756 vnc_flush(vs);
2757 vnc_read_when(vs, protocol_version, 12);
53762ddb 2758 reset_keys(vs);
3a0558b5
GH		 2759 if (vs->vd->lock_key_sync)
2760 vs->led = qemu_add_led_event_handler(kbd_leds, vs);
753b4053 2761
37c34d9d
AL		 2762 vs->mouse_mode_notifier.notify = check_pointer_type_change;
2763 qemu_add_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
2764
198a0039 2765 /* vs might be free()ed here */
3aa3eea3
AZ		 2766}
2767
7536ee4b 2768static void vnc_listen_read(void *opaque, bool websocket)
24236869 2769{
753b4053 2770 VncDisplay *vs = opaque;
24236869
FB		 2771 struct sockaddr_in addr;
2772 socklen_t addrlen = sizeof(addr);
7536ee4b 2773 int csock;
24236869 2774
9f60ad50 2775 /* Catch-up */
1dbfa005 2776 graphic_hw_update(NULL);
7536ee4b
TH		 2777#ifdef CONFIG_VNC_WS
2778 if (websocket) {
2779 csock = qemu_accept(vs->lwebsock, (struct sockaddr *)&addr, &addrlen);
2780 } else
2781#endif /* CONFIG_VNC_WS */
2782 {
2783 csock = qemu_accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
2784 }
9f60ad50 2785
753b4053 2786 if (csock != -1) {
7536ee4b 2787 vnc_connect(vs, csock, 0, websocket);
24236869
FB		 2788 }
2789}
2790
7536ee4b
TH		 2791static void vnc_listen_regular_read(void *opaque)
2792{
2793 vnc_listen_read(opaque, 0);
2794}
2795
2796#ifdef CONFIG_VNC_WS
2797static void vnc_listen_websocket_read(void *opaque)
2798{
2799 vnc_listen_read(opaque, 1);
2800}
2801#endif /* CONFIG_VNC_WS */
2802
7c20b4a3
GH		 2803static const DisplayChangeListenerOps dcl_ops = {
2804 .dpy_name = "vnc",
0f7b2864 2805 .dpy_refresh = vnc_refresh,
7c20b4a3
GH		 2806 .dpy_gfx_copy = vnc_dpy_copy,
2807 .dpy_gfx_update = vnc_dpy_update,
c12aeb86 2808 .dpy_gfx_switch = vnc_dpy_switch,
7c20b4a3
GH		 2809 .dpy_mouse_set = vnc_mouse_set,
2810 .dpy_cursor_define = vnc_dpy_cursor_define,
2811};
2812
71cab5ca 2813void vnc_display_init(DisplayState *ds)
24236869 2814{
7267c094 2815 VncDisplay *vs = g_malloc0(sizeof(*vs));
24236869 2816
753b4053 2817 vnc_display = vs;
24236869
FB		 2818
2819 vs->lsock = -1;
7536ee4b
TH		 2820#ifdef CONFIG_VNC_WS
2821 vs->lwebsock = -1;
2822#endif
24236869 2823
41b4bef6 2824 QTAILQ_INIT(&vs->clients);
3c9405a0 2825 vs->expires = TIME_MAX;
24236869 2826
9ca313aa 2827 if (keyboard_layout)
0483755a 2828 vs->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
9ca313aa 2829 else
0483755a 2830 vs->kbd_layout = init_keyboard_layout(name2keysym, "en-us");
24236869 2831
24236869 2832 if (!vs->kbd_layout)
28a76be8 2833 exit(1);
24236869 2834
bd023f95
CC		 2835 qemu_mutex_init(&vs->mutex);
2836 vnc_start_worker_thread();
bd023f95 2837
21ef45d7 2838 vs->dcl.ops = &dcl_ops;
5209089f 2839 register_displaychangelistener(&vs->dcl);
71cab5ca
TS		 2840}
2841
6f43024c 2842
71a8cdec 2843static void vnc_display_close(DisplayState *ds)
71cab5ca 2844{
21ef45d7 2845 VncDisplay *vs = vnc_display;
71cab5ca 2846
452b4d88
AL		 2847 if (!vs)
2848 return;
71cab5ca 2849 if (vs->display) {
7267c094 2850 g_free(vs->display);
28a76be8 2851 vs->display = NULL;
71cab5ca
TS		 2852 }
2853 if (vs->lsock != -1) {
28a76be8
AL		 2854 qemu_set_fd_handler2(vs->lsock, NULL, NULL, NULL, NULL);
2855 close(vs->lsock);
2856 vs->lsock = -1;
71cab5ca 2857 }
7536ee4b
TH		 2858#ifdef CONFIG_VNC_WS
2859 g_free(vs->ws_display);
2860 vs->ws_display = NULL;
2861 if (vs->lwebsock != -1) {
2862 qemu_set_fd_handler2(vs->lwebsock, NULL, NULL, NULL, NULL);
2863 close(vs->lwebsock);
2864 vs->lwebsock = -1;
2865 }
2866#endif /* CONFIG_VNC_WS */
70848515 2867 vs->auth = VNC_AUTH_INVALID;
eb38c52c 2868#ifdef CONFIG_VNC_TLS
8d5d2d4c 2869 vs->subauth = VNC_AUTH_INVALID;
5fb6c7a8 2870 vs->tls.x509verify = 0;
8d5d2d4c 2871#endif
70848515
TS		 2872}
2873
71a8cdec 2874static int vnc_display_disable_login(DisplayState *ds)
1cd20f8b 2875{
21ef45d7 2876 VncDisplay *vs = vnc_display;
1cd20f8b
AL		 2877
2878 if (!vs) {
2879 return -1;
2880 }
2881
2882 if (vs->password) {
7267c094 2883 g_free(vs->password);
1cd20f8b
AL		 2884 }
2885
2886 vs->password = NULL;
7dfbfc79
DB		 2887 if (vs->auth == VNC_AUTH_NONE) {
2888 vs->auth = VNC_AUTH_VNC;
2889 }
1cd20f8b
AL		 2890
2891 return 0;
2892}
2893
70848515
TS		 2894int vnc_display_password(DisplayState *ds, const char *password)
2895{
21ef45d7 2896 VncDisplay *vs = vnc_display;
70848515 2897
7ef92331 2898 if (!vs) {
a6aa9d3e 2899 return -EINVAL;
7ef92331
ZA		 2900 }
2901
1cd20f8b
AL		 2902 if (!password) {
2903 /* This is not the intention of this interface but err on the side
2904 of being safe */
a6aa9d3e 2905 return vnc_display_disable_login(ds);
1cd20f8b
AL		 2906 }
2907
70848515 2908 if (vs->password) {
7267c094 2909 g_free(vs->password);
28a76be8 2910 vs->password = NULL;
70848515 2911 }
7267c094 2912 vs->password = g_strdup(password);
7dfbfc79
DB		 2913 if (vs->auth == VNC_AUTH_NONE) {
2914 vs->auth = VNC_AUTH_VNC;
2915 }
a6aa9d3e
LC		 2916
2917 return 0;
71cab5ca
TS		 2918}
2919
3c9405a0
GH		 2920int vnc_display_pw_expire(DisplayState *ds, time_t expires)
2921{
21ef45d7 2922 VncDisplay *vs = vnc_display;
3c9405a0 2923
1643f2b2
GH		 2924 if (!vs) {
2925 return -EINVAL;
2926 }
2927
3c9405a0
GH		 2928 vs->expires = expires;
2929 return 0;
2930}
2931
f92f8afe
AL		 2932char *vnc_display_local_addr(DisplayState *ds)
2933{
21ef45d7 2934 VncDisplay *vs = vnc_display;
f92f8afe
AL		 2935
2936 return vnc_socket_local_addr("%s:%s", vs->lsock);
2937}
2938
2d55f0e8 2939void vnc_display_open(DisplayState *ds, const char *display, Error **errp)
71cab5ca 2940{
21ef45d7 2941 VncDisplay *vs = vnc_display;
70848515
TS		 2942 const char *options;
2943 int password = 0;
3aa3eea3 2944 int reverse = 0;
eb38c52c 2945#ifdef CONFIG_VNC_TLS
3a702699 2946 int tls = 0, x509 = 0;
8d5d2d4c 2947#endif
2f9606b3
AL		 2948#ifdef CONFIG_VNC_SASL
2949 int sasl = 0;
2950 int saslErr;
2951#endif
2ded6ad7 2952#if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL)
76655d6d 2953 int acl = 0;
2ded6ad7 2954#endif
3a0558b5 2955 int lock_key_sync = 1;
71cab5ca 2956
2d55f0e8
PB		 2957 if (!vnc_display) {
2958 error_setg(errp, "VNC display not active");
2959 return;
2960 }
71cab5ca 2961 vnc_display_close(ds);
70848515 2962 if (strcmp(display, "none") == 0)
2d55f0e8 2963 return;
24236869 2964
1ce52c78 2965 vs->display = g_strdup(display);
8cf36489 2966 vs->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;
70848515
TS		 2967
2968 options = display;
2969 while ((options = strchr(options, ','))) {
28a76be8
AL		 2970 options++;
2971 if (strncmp(options, "password", 8) == 0) {
0f66998f 2972 if (fips_get_state()) {
2d55f0e8
PB		 2973 error_setg(errp,
2974 "VNC password auth disabled due to FIPS mode, "
2975 "consider using the VeNCrypt or SASL authentication "
2976 "methods as an alternative");
1ce52c78 2977 goto fail;
0f66998f 2978 }
28a76be8
AL		 2979 password = 1; /* Require password auth */
2980 } else if (strncmp(options, "reverse", 7) == 0) {
2981 reverse = 1;
cee8e6ad 2982 } else if (strncmp(options, "no-lock-key-sync", 16) == 0) {
3a0558b5 2983 lock_key_sync = 0;
2f9606b3 2984#ifdef CONFIG_VNC_SASL
28a76be8
AL		 2985 } else if (strncmp(options, "sasl", 4) == 0) {
2986 sasl = 1; /* Require SASL auth */
2f9606b3 2987#endif
7536ee4b
TH		 2988#ifdef CONFIG_VNC_WS
2989 } else if (strncmp(options, "websocket", 9) == 0) {
2990 char *start, *end;
2991 vs->websocket = 1;
2992
2993 /* Check for 'websocket=<port>' */
2994 start = strchr(options, '=');
2995 end = strchr(options, ',');
2996 if (start && (!end || (start < end))) {
2997 int len = end ? end-(start+1) : strlen(start+1);
2998 if (len < 6) {
2999 /* extract the host specification from display */
3000 char *host = NULL, *port = NULL, *host_end = NULL;
3001 port = g_strndup(start + 1, len);
3002
3003 /* ipv6 hosts have colons */
3004 end = strchr(display, ',');
3005 host_end = g_strrstr_len(display, end - display, ":");
3006
3007 if (host_end) {
3008 host = g_strndup(display, host_end - display + 1);
3009 } else {
3010 host = g_strndup(":", 1);
3011 }
3012 vs->ws_display = g_strconcat(host, port, NULL);
3013 g_free(host);
3014 g_free(port);
3015 }
3016 }
3017#endif /* CONFIG_VNC_WS */
eb38c52c 3018#ifdef CONFIG_VNC_TLS
28a76be8
AL		 3019 } else if (strncmp(options, "tls", 3) == 0) {
3020 tls = 1; /* Require TLS */
3021 } else if (strncmp(options, "x509", 4) == 0) {
3022 char *start, *end;
3023 x509 = 1; /* Require x509 certificates */
3024 if (strncmp(options, "x509verify", 10) == 0)
3025 vs->tls.x509verify = 1; /* ...and verify client certs */
3026
3027 /* Now check for 'x509=/some/path' postfix
3028 * and use that to setup x509 certificate/key paths */
3029 start = strchr(options, '=');
3030 end = strchr(options, ',');
3031 if (start && (!end || (start < end))) {
3032 int len = end ? end-(start+1) : strlen(start+1);
7267c094 3033 char *path = g_strndup(start + 1, len);
28a76be8
AL		 3034
3035 VNC_DEBUG("Trying certificate path '%s'\n", path);
3036 if (vnc_tls_set_x509_creds_dir(vs, path) < 0) {
2d55f0e8 3037 error_setg(errp, "Failed to find x509 certificates/keys in %s", path);
7267c094 3038 g_free(path);
1ce52c78 3039 goto fail;
28a76be8 3040 }
7267c094 3041 g_free(path);
28a76be8 3042 } else {
2d55f0e8 3043 error_setg(errp, "No certificate path provided");
1ce52c78 3044 goto fail;
28a76be8 3045 }
8d5d2d4c 3046#endif
2ded6ad7 3047#if defined(CONFIG_VNC_TLS) || defined(CONFIG_VNC_SASL)
28a76be8
AL		 3048 } else if (strncmp(options, "acl", 3) == 0) {
3049 acl = 1;
2ded6ad7 3050#endif
6f9c78c1
CC		 3051 } else if (strncmp(options, "lossy", 5) == 0) {
3052 vs->lossy = true;
7eff5742 3053 } else if (strncmp(options, "non-adaptive", 12) == 0) {
80e0c8c3 3054 vs->non_adaptive = true;
8cf36489
GH		 3055 } else if (strncmp(options, "share=", 6) == 0) {
3056 if (strncmp(options+6, "ignore", 6) == 0) {
3057 vs->share_policy = VNC_SHARE_POLICY_IGNORE;
3058 } else if (strncmp(options+6, "allow-exclusive", 15) == 0) {
3059 vs->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;
3060 } else if (strncmp(options+6, "force-shared", 12) == 0) {
3061 vs->share_policy = VNC_SHARE_POLICY_FORCE_SHARED;
3062 } else {
2d55f0e8 3063 error_setg(errp, "unknown vnc share= option");
1ce52c78 3064 goto fail;
8cf36489 3065 }
28a76be8 3066 }
70848515
TS		 3067 }
3068
76655d6d
AL		 3069#ifdef CONFIG_VNC_TLS
3070 if (acl && x509 && vs->tls.x509verify) {
28a76be8
AL		 3071 if (!(vs->tls.acl = qemu_acl_init("vnc.x509dname"))) {
3072 fprintf(stderr, "Failed to create x509 dname ACL\n");
3073 exit(1);
3074 }
76655d6d
AL		 3075 }
3076#endif
3077#ifdef CONFIG_VNC_SASL
3078 if (acl && sasl) {
28a76be8
AL		 3079 if (!(vs->sasl.acl = qemu_acl_init("vnc.username"))) {
3080 fprintf(stderr, "Failed to create username ACL\n");
3081 exit(1);
3082 }
76655d6d
AL		 3083 }
3084#endif
3085
2f9606b3
AL		 3086 /*
3087 * Combinations we support here:
3088 *
3089 * - no-auth (clear text, no auth)
3090 * - password (clear text, weak auth)
3091 * - sasl (encrypt, good auth *IF* using Kerberos via GSSAPI)
3092 * - tls (encrypt, weak anonymous creds, no auth)
3093 * - tls + password (encrypt, weak anonymous creds, weak auth)
3094 * - tls + sasl (encrypt, weak anonymous creds, good auth)
3095 * - tls + x509 (encrypt, good x509 creds, no auth)
3096 * - tls + x509 + password (encrypt, good x509 creds, weak auth)
3097 * - tls + x509 + sasl (encrypt, good x509 creds, good auth)
3098 *
3099 * NB1. TLS is a stackable auth scheme.
3100 * NB2. the x509 schemes have option to validate a client cert dname
3101 */
70848515 3102 if (password) {
eb38c52c 3103#ifdef CONFIG_VNC_TLS
28a76be8
AL		 3104 if (tls) {
3105 vs->auth = VNC_AUTH_VENCRYPT;
3106 if (x509) {
3107 VNC_DEBUG("Initializing VNC server with x509 password auth\n");
3108 vs->subauth = VNC_AUTH_VENCRYPT_X509VNC;
3109 } else {
3110 VNC_DEBUG("Initializing VNC server with TLS password auth\n");
3111 vs->subauth = VNC_AUTH_VENCRYPT_TLSVNC;
3112 }
3113 } else {
2f9606b3 3114#endif /* CONFIG_VNC_TLS */
28a76be8
AL		 3115 VNC_DEBUG("Initializing VNC server with password auth\n");
3116 vs->auth = VNC_AUTH_VNC;
eb38c52c 3117#ifdef CONFIG_VNC_TLS
28a76be8
AL		 3118 vs->subauth = VNC_AUTH_INVALID;
3119 }
2f9606b3
AL		 3120#endif /* CONFIG_VNC_TLS */
3121#ifdef CONFIG_VNC_SASL
3122 } else if (sasl) {
3123#ifdef CONFIG_VNC_TLS
3124 if (tls) {
3125 vs->auth = VNC_AUTH_VENCRYPT;
3126 if (x509) {
28a76be8 3127 VNC_DEBUG("Initializing VNC server with x509 SASL auth\n");
2f9606b3
AL		 3128 vs->subauth = VNC_AUTH_VENCRYPT_X509SASL;
3129 } else {
28a76be8 3130 VNC_DEBUG("Initializing VNC server with TLS SASL auth\n");
2f9606b3
AL		 3131 vs->subauth = VNC_AUTH_VENCRYPT_TLSSASL;
3132 }
3133 } else {
3134#endif /* CONFIG_VNC_TLS */
28a76be8 3135 VNC_DEBUG("Initializing VNC server with SASL auth\n");
2f9606b3
AL		 3136 vs->auth = VNC_AUTH_SASL;
3137#ifdef CONFIG_VNC_TLS
3138 vs->subauth = VNC_AUTH_INVALID;
3139 }
3140#endif /* CONFIG_VNC_TLS */
3141#endif /* CONFIG_VNC_SASL */
70848515 3142 } else {
eb38c52c 3143#ifdef CONFIG_VNC_TLS
28a76be8
AL		 3144 if (tls) {
3145 vs->auth = VNC_AUTH_VENCRYPT;
3146 if (x509) {
3147 VNC_DEBUG("Initializing VNC server with x509 no auth\n");
3148 vs->subauth = VNC_AUTH_VENCRYPT_X509NONE;
3149 } else {
3150 VNC_DEBUG("Initializing VNC server with TLS no auth\n");
3151 vs->subauth = VNC_AUTH_VENCRYPT_TLSNONE;
3152 }
3153 } else {
8d5d2d4c 3154#endif
28a76be8
AL		 3155 VNC_DEBUG("Initializing VNC server with no auth\n");
3156 vs->auth = VNC_AUTH_NONE;
eb38c52c 3157#ifdef CONFIG_VNC_TLS
28a76be8
AL		 3158 vs->subauth = VNC_AUTH_INVALID;
3159 }
8d5d2d4c 3160#endif
70848515 3161 }
24236869 3162
2f9606b3
AL		 3163#ifdef CONFIG_VNC_SASL
3164 if ((saslErr = sasl_server_init(NULL, "qemu")) != SASL_OK) {
2d55f0e8
PB		 3165 error_setg(errp, "Failed to initialize SASL auth: %s",
3166 sasl_errstring(saslErr, NULL, NULL));
1ce52c78 3167 goto fail;
2f9606b3
AL		 3168 }
3169#endif
3a0558b5 3170 vs->lock_key_sync = lock_key_sync;
2f9606b3 3171
3aa3eea3 3172 if (reverse) {
9712ecaf 3173 /* connect to viewer */
007fcd3e
PB		 3174 int csock;
3175 vs->lsock = -1;
7536ee4b
TH		 3176#ifdef CONFIG_VNC_WS
3177 vs->lwebsock = -1;
3178#endif
007fcd3e 3179 if (strncmp(display, "unix:", 5) == 0) {
2d55f0e8 3180 csock = unix_connect(display+5, errp);
3aa3eea3 3181 } else {
2d55f0e8 3182 csock = inet_connect(display, errp);
3aa3eea3 3183 }
007fcd3e
PB		 3184 if (csock < 0) {
3185 goto fail;
3186 }
7536ee4b 3187 vnc_connect(vs, csock, 0, 0);
9712ecaf
AL		 3188 } else {
3189 /* listen for connects */
3190 char *dpy;
7267c094 3191 dpy = g_malloc(256);
9712ecaf 3192 if (strncmp(display, "unix:", 5) == 0) {
bc575e95 3193 pstrcpy(dpy, 256, "unix:");
2d55f0e8 3194 vs->lsock = unix_listen(display+5, dpy+5, 256-5, errp);
9712ecaf 3195 } else {
029409e5 3196 vs->lsock = inet_listen(display, dpy, 256,
2d55f0e8 3197 SOCK_STREAM, 5900, errp);
7536ee4b
TH		 3198 if (vs->lsock < 0) {
3199 g_free(dpy);
3200 goto fail;
3201 }
3202#ifdef CONFIG_VNC_WS
3203 if (vs->websocket) {
3204 if (vs->ws_display) {
3205 vs->lwebsock = inet_listen(vs->ws_display, NULL, 256,
3206 SOCK_STREAM, 0, errp);
3207 } else {
3208 vs->lwebsock = inet_listen(vs->display, NULL, 256,
3209 SOCK_STREAM, 5700, errp);
3210 }
3211
3212 if (vs->lwebsock < 0) {
3213 if (vs->lsock) {
3214 close(vs->lsock);
3215 vs->lsock = -1;
3216 }
3217 g_free(dpy);
3218 goto fail;
3219 }
3220 }
3221#endif /* CONFIG_VNC_WS */
9712ecaf 3222 }
1ce52c78
PB		 3223 g_free(vs->display);
3224 vs->display = dpy;
7536ee4b
TH		 3225 qemu_set_fd_handler2(vs->lsock, NULL,
3226 vnc_listen_regular_read, NULL, vs);
3227#ifdef CONFIG_VNC_WS
3228 if (vs->websocket) {
3229 qemu_set_fd_handler2(vs->lwebsock, NULL,
3230 vnc_listen_websocket_read, NULL, vs);
3231 }
3232#endif /* CONFIG_VNC_WS */
24236869 3233 }
2d55f0e8 3234 return;
1ce52c78
PB		 3235
3236fail:
3237 g_free(vs->display);
3238 vs->display = NULL;
7536ee4b
TH		 3239#ifdef CONFIG_VNC_WS
3240 g_free(vs->ws_display);
3241 vs->ws_display = NULL;
3242#endif /* CONFIG_VNC_WS */
24236869 3243}
13661089
DB		 3244
3245void vnc_display_add_client(DisplayState *ds, int csock, int skipauth)
3246{
21ef45d7 3247 VncDisplay *vs = vnc_display;
13661089 3248
7536ee4b 3249 vnc_connect(vs, csock, skipauth, 0);
13661089 3250}
Qemu copy for testing