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Commit | Line | Data |
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7d510b8c FB |
1 | /* |
2 | * QEMU VNC display driver | |
5fafdf24 | 3 | * |
7d510b8c FB |
4 | * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws> |
5 | * Copyright (C) 2006 Fabrice Bellard | |
19a490bf | 6 | * Copyright (C) 2009 Red Hat, Inc |
5fafdf24 | 7 | * |
7d510b8c FB |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
24 | * THE SOFTWARE. | |
25 | */ | |
26 | ||
e16f4c87 | 27 | #include "qemu/osdep.h" |
19a490bf | 28 | #include "vnc.h" |
bd023f95 | 29 | #include "vnc-jobs.h" |
40066175 | 30 | #include "trace.h" |
1d0d59fe | 31 | #include "hw/qdev.h" |
9c17d615 | 32 | #include "sysemu/sysemu.h" |
d49b6836 | 33 | #include "qemu/error-report.h" |
1de7afc9 PB |
34 | #include "qemu/sockets.h" |
35 | #include "qemu/timer.h" | |
36 | #include "qemu/acl.h" | |
4db14629 | 37 | #include "qemu/config-file.h" |
cc7a8ea7 | 38 | #include "qapi/qmp/qerror.h" |
7b1b5d19 | 39 | #include "qapi/qmp/types.h" |
2b54aa87 | 40 | #include "qmp-commands.h" |
8d447d10 | 41 | #include "ui/input.h" |
fb6ba0d5 | 42 | #include "qapi-event.h" |
8e9b0d24 | 43 | #include "crypto/hash.h" |
3e305e4a DB |
44 | #include "crypto/tlscredsanon.h" |
45 | #include "crypto/tlscredsx509.h" | |
46 | #include "qom/object_interfaces.h" | |
f348b6d1 | 47 | #include "qemu/cutils.h" |
57a6d6d5 | 48 | #include "io/dns-resolver.h" |
24236869 | 49 | |
0f7b2864 | 50 | #define VNC_REFRESH_INTERVAL_BASE GUI_REFRESH_INTERVAL_DEFAULT |
2430ffe4 | 51 | #define VNC_REFRESH_INTERVAL_INC 50 |
0f7b2864 | 52 | #define VNC_REFRESH_INTERVAL_MAX GUI_REFRESH_INTERVAL_IDLE |
999342a0 CC |
53 | static const struct timeval VNC_REFRESH_STATS = { 0, 500000 }; |
54 | static const struct timeval VNC_REFRESH_LOSSY = { 2, 0 }; | |
24236869 FB |
55 | |
56 | #include "vnc_keysym.h" | |
800567a6 | 57 | #include "crypto/cipher.h" |
70848515 | 58 | |
d616ccc5 GH |
59 | static QTAILQ_HEAD(, VncDisplay) vnc_displays = |
60 | QTAILQ_HEAD_INITIALIZER(vnc_displays); | |
a9ce8590 | 61 | |
d467b679 | 62 | static int vnc_cursor_define(VncState *vs); |
7bc9318b | 63 | static void vnc_release_modifiers(VncState *vs); |
d467b679 | 64 | |
8cf36489 GH |
65 | static void vnc_set_share_mode(VncState *vs, VncShareMode mode) |
66 | { | |
67 | #ifdef _VNC_DEBUG | |
68 | static const char *mn[] = { | |
69 | [0] = "undefined", | |
70 | [VNC_SHARE_MODE_CONNECTING] = "connecting", | |
71 | [VNC_SHARE_MODE_SHARED] = "shared", | |
72 | [VNC_SHARE_MODE_EXCLUSIVE] = "exclusive", | |
73 | [VNC_SHARE_MODE_DISCONNECTED] = "disconnected", | |
74 | }; | |
04d2529d DB |
75 | fprintf(stderr, "%s/%p: %s -> %s\n", __func__, |
76 | vs->ioc, mn[vs->share_mode], mn[mode]); | |
8cf36489 GH |
77 | #endif |
78 | ||
e5f34cdd GH |
79 | switch (vs->share_mode) { |
80 | case VNC_SHARE_MODE_CONNECTING: | |
81 | vs->vd->num_connecting--; | |
82 | break; | |
83 | case VNC_SHARE_MODE_SHARED: | |
84 | vs->vd->num_shared--; | |
85 | break; | |
86 | case VNC_SHARE_MODE_EXCLUSIVE: | |
8cf36489 | 87 | vs->vd->num_exclusive--; |
e5f34cdd GH |
88 | break; |
89 | default: | |
90 | break; | |
8cf36489 | 91 | } |
e5f34cdd | 92 | |
8cf36489 | 93 | vs->share_mode = mode; |
e5f34cdd GH |
94 | |
95 | switch (vs->share_mode) { | |
96 | case VNC_SHARE_MODE_CONNECTING: | |
97 | vs->vd->num_connecting++; | |
98 | break; | |
99 | case VNC_SHARE_MODE_SHARED: | |
100 | vs->vd->num_shared++; | |
101 | break; | |
102 | case VNC_SHARE_MODE_EXCLUSIVE: | |
8cf36489 | 103 | vs->vd->num_exclusive++; |
e5f34cdd GH |
104 | break; |
105 | default: | |
106 | break; | |
8cf36489 GH |
107 | } |
108 | } | |
109 | ||
1ff7df1a | 110 | |
04d2529d | 111 | static void vnc_init_basic_info(SocketAddress *addr, |
98481bfc EB |
112 | VncBasicInfo *info, |
113 | Error **errp) | |
d96fd29c | 114 | { |
04d2529d DB |
115 | switch (addr->type) { |
116 | case SOCKET_ADDRESS_KIND_INET: | |
32bafa8f EB |
117 | info->host = g_strdup(addr->u.inet.data->host); |
118 | info->service = g_strdup(addr->u.inet.data->port); | |
119 | if (addr->u.inet.data->ipv6) { | |
04d2529d DB |
120 | info->family = NETWORK_ADDRESS_FAMILY_IPV6; |
121 | } else { | |
122 | info->family = NETWORK_ADDRESS_FAMILY_IPV4; | |
123 | } | |
124 | break; | |
d96fd29c | 125 | |
04d2529d DB |
126 | case SOCKET_ADDRESS_KIND_UNIX: |
127 | info->host = g_strdup(""); | |
32bafa8f | 128 | info->service = g_strdup(addr->u.q_unix.data->path); |
04d2529d DB |
129 | info->family = NETWORK_ADDRESS_FAMILY_UNIX; |
130 | break; | |
131 | ||
132 | default: | |
133 | error_setg(errp, "Unsupported socket kind %d", | |
134 | addr->type); | |
135 | break; | |
d96fd29c LC |
136 | } |
137 | ||
04d2529d | 138 | return; |
d96fd29c LC |
139 | } |
140 | ||
04d2529d DB |
141 | static void vnc_init_basic_info_from_server_addr(QIOChannelSocket *ioc, |
142 | VncBasicInfo *info, | |
98481bfc | 143 | Error **errp) |
d96fd29c | 144 | { |
04d2529d | 145 | SocketAddress *addr = NULL; |
d96fd29c | 146 | |
624cdd46 DB |
147 | if (!ioc) { |
148 | error_setg(errp, "No listener socket available"); | |
149 | return; | |
150 | } | |
151 | ||
04d2529d DB |
152 | addr = qio_channel_socket_get_local_address(ioc, errp); |
153 | if (!addr) { | |
98481bfc | 154 | return; |
d96fd29c LC |
155 | } |
156 | ||
04d2529d DB |
157 | vnc_init_basic_info(addr, info, errp); |
158 | qapi_free_SocketAddress(addr); | |
d96fd29c LC |
159 | } |
160 | ||
04d2529d DB |
161 | static void vnc_init_basic_info_from_remote_addr(QIOChannelSocket *ioc, |
162 | VncBasicInfo *info, | |
98481bfc | 163 | Error **errp) |
d96fd29c | 164 | { |
04d2529d | 165 | SocketAddress *addr = NULL; |
d96fd29c | 166 | |
04d2529d DB |
167 | addr = qio_channel_socket_get_remote_address(ioc, errp); |
168 | if (!addr) { | |
98481bfc | 169 | return; |
d96fd29c LC |
170 | } |
171 | ||
04d2529d DB |
172 | vnc_init_basic_info(addr, info, errp); |
173 | qapi_free_SocketAddress(addr); | |
d96fd29c LC |
174 | } |
175 | ||
1ff7df1a AL |
176 | static const char *vnc_auth_name(VncDisplay *vd) { |
177 | switch (vd->auth) { | |
178 | case VNC_AUTH_INVALID: | |
179 | return "invalid"; | |
180 | case VNC_AUTH_NONE: | |
181 | return "none"; | |
182 | case VNC_AUTH_VNC: | |
183 | return "vnc"; | |
184 | case VNC_AUTH_RA2: | |
185 | return "ra2"; | |
186 | case VNC_AUTH_RA2NE: | |
187 | return "ra2ne"; | |
188 | case VNC_AUTH_TIGHT: | |
189 | return "tight"; | |
190 | case VNC_AUTH_ULTRA: | |
191 | return "ultra"; | |
192 | case VNC_AUTH_TLS: | |
193 | return "tls"; | |
194 | case VNC_AUTH_VENCRYPT: | |
1ff7df1a AL |
195 | switch (vd->subauth) { |
196 | case VNC_AUTH_VENCRYPT_PLAIN: | |
197 | return "vencrypt+plain"; | |
198 | case VNC_AUTH_VENCRYPT_TLSNONE: | |
199 | return "vencrypt+tls+none"; | |
200 | case VNC_AUTH_VENCRYPT_TLSVNC: | |
201 | return "vencrypt+tls+vnc"; | |
202 | case VNC_AUTH_VENCRYPT_TLSPLAIN: | |
203 | return "vencrypt+tls+plain"; | |
204 | case VNC_AUTH_VENCRYPT_X509NONE: | |
205 | return "vencrypt+x509+none"; | |
206 | case VNC_AUTH_VENCRYPT_X509VNC: | |
207 | return "vencrypt+x509+vnc"; | |
208 | case VNC_AUTH_VENCRYPT_X509PLAIN: | |
209 | return "vencrypt+x509+plain"; | |
28a76be8 AL |
210 | case VNC_AUTH_VENCRYPT_TLSSASL: |
211 | return "vencrypt+tls+sasl"; | |
212 | case VNC_AUTH_VENCRYPT_X509SASL: | |
213 | return "vencrypt+x509+sasl"; | |
1ff7df1a AL |
214 | default: |
215 | return "vencrypt"; | |
216 | } | |
2f9606b3 | 217 | case VNC_AUTH_SASL: |
28a76be8 | 218 | return "sasl"; |
1ff7df1a AL |
219 | } |
220 | return "unknown"; | |
221 | } | |
222 | ||
d616ccc5 | 223 | static VncServerInfo *vnc_server_info_get(VncDisplay *vd) |
a7789382 | 224 | { |
fb6ba0d5 | 225 | VncServerInfo *info; |
98481bfc | 226 | Error *err = NULL; |
a7789382 | 227 | |
4ee74fa7 DB |
228 | if (!vd->nlsock) { |
229 | return NULL; | |
230 | } | |
231 | ||
3e7f136d | 232 | info = g_malloc0(sizeof(*info)); |
4ee74fa7 | 233 | vnc_init_basic_info_from_server_addr(vd->lsock[0], |
ddf21908 | 234 | qapi_VncServerInfo_base(info), &err); |
fb6ba0d5 | 235 | info->has_auth = true; |
d616ccc5 | 236 | info->auth = g_strdup(vnc_auth_name(vd)); |
98481bfc EB |
237 | if (err) { |
238 | qapi_free_VncServerInfo(info); | |
239 | info = NULL; | |
240 | error_free(err); | |
241 | } | |
fb6ba0d5 | 242 | return info; |
a7789382 LC |
243 | } |
244 | ||
4a80dba3 | 245 | static void vnc_client_cache_auth(VncState *client) |
1ff7df1a | 246 | { |
4a80dba3 LC |
247 | if (!client->info) { |
248 | return; | |
d96fd29c | 249 | } |
1263b7d6 | 250 | |
3e305e4a DB |
251 | if (client->tls) { |
252 | client->info->x509_dname = | |
253 | qcrypto_tls_session_get_peer_name(client->tls); | |
254 | client->info->has_x509_dname = | |
255 | client->info->x509_dname != NULL; | |
d96fd29c | 256 | } |
1263b7d6 AL |
257 | #ifdef CONFIG_VNC_SASL |
258 | if (client->sasl.conn && | |
d96fd29c | 259 | client->sasl.username) { |
fb6ba0d5 WX |
260 | client->info->has_sasl_username = true; |
261 | client->info->sasl_username = g_strdup(client->sasl.username); | |
d96fd29c | 262 | } |
1263b7d6 | 263 | #endif |
4a80dba3 | 264 | } |
d96fd29c | 265 | |
4a80dba3 LC |
266 | static void vnc_client_cache_addr(VncState *client) |
267 | { | |
98481bfc EB |
268 | Error *err = NULL; |
269 | ||
270 | client->info = g_malloc0(sizeof(*client->info)); | |
04d2529d | 271 | vnc_init_basic_info_from_remote_addr(client->sioc, |
ddf21908 | 272 | qapi_VncClientInfo_base(client->info), |
98481bfc EB |
273 | &err); |
274 | if (err) { | |
275 | qapi_free_VncClientInfo(client->info); | |
276 | client->info = NULL; | |
277 | error_free(err); | |
4a80dba3 | 278 | } |
1ff7df1a AL |
279 | } |
280 | ||
fb6ba0d5 | 281 | static void vnc_qmp_event(VncState *vs, QAPIEvent event) |
586153d9 | 282 | { |
fb6ba0d5 | 283 | VncServerInfo *si; |
586153d9 LC |
284 | |
285 | if (!vs->info) { | |
286 | return; | |
287 | } | |
288 | ||
d616ccc5 | 289 | si = vnc_server_info_get(vs->vd); |
fb6ba0d5 | 290 | if (!si) { |
586153d9 LC |
291 | return; |
292 | } | |
293 | ||
fb6ba0d5 WX |
294 | switch (event) { |
295 | case QAPI_EVENT_VNC_CONNECTED: | |
ddf21908 EB |
296 | qapi_event_send_vnc_connected(si, qapi_VncClientInfo_base(vs->info), |
297 | &error_abort); | |
fb6ba0d5 WX |
298 | break; |
299 | case QAPI_EVENT_VNC_INITIALIZED: | |
300 | qapi_event_send_vnc_initialized(si, vs->info, &error_abort); | |
301 | break; | |
302 | case QAPI_EVENT_VNC_DISCONNECTED: | |
303 | qapi_event_send_vnc_disconnected(si, vs->info, &error_abort); | |
304 | break; | |
305 | default: | |
306 | break; | |
307 | } | |
586153d9 | 308 | |
fb6ba0d5 | 309 | qapi_free_VncServerInfo(si); |
586153d9 LC |
310 | } |
311 | ||
2b54aa87 | 312 | static VncClientInfo *qmp_query_vnc_client(const VncState *client) |
a9ce8590 | 313 | { |
2b54aa87 | 314 | VncClientInfo *info; |
04d2529d | 315 | Error *err = NULL; |
2b54aa87 | 316 | |
04d2529d | 317 | info = g_malloc0(sizeof(*info)); |
2b54aa87 | 318 | |
04d2529d DB |
319 | vnc_init_basic_info_from_remote_addr(client->sioc, |
320 | qapi_VncClientInfo_base(info), | |
321 | &err); | |
322 | if (err) { | |
323 | error_free(err); | |
324 | qapi_free_VncClientInfo(info); | |
2b54aa87 LC |
325 | return NULL; |
326 | } | |
d96fd29c | 327 | |
ddf21908 | 328 | info->websocket = client->websocket; |
d96fd29c | 329 | |
3e305e4a DB |
330 | if (client->tls) { |
331 | info->x509_dname = qcrypto_tls_session_get_peer_name(client->tls); | |
332 | info->has_x509_dname = info->x509_dname != NULL; | |
2b54aa87 | 333 | } |
d96fd29c | 334 | #ifdef CONFIG_VNC_SASL |
2b54aa87 LC |
335 | if (client->sasl.conn && client->sasl.username) { |
336 | info->has_sasl_username = true; | |
337 | info->sasl_username = g_strdup(client->sasl.username); | |
d96fd29c | 338 | } |
2b54aa87 | 339 | #endif |
1ff7df1a | 340 | |
2b54aa87 | 341 | return info; |
d96fd29c | 342 | } |
1ff7df1a | 343 | |
d616ccc5 GH |
344 | static VncDisplay *vnc_display_find(const char *id) |
345 | { | |
346 | VncDisplay *vd; | |
347 | ||
348 | if (id == NULL) { | |
349 | return QTAILQ_FIRST(&vnc_displays); | |
350 | } | |
351 | QTAILQ_FOREACH(vd, &vnc_displays, next) { | |
352 | if (strcmp(id, vd->id) == 0) { | |
353 | return vd; | |
354 | } | |
355 | } | |
356 | return NULL; | |
357 | } | |
358 | ||
2d29a436 GH |
359 | static VncClientInfoList *qmp_query_client_list(VncDisplay *vd) |
360 | { | |
361 | VncClientInfoList *cinfo, *prev = NULL; | |
362 | VncState *client; | |
363 | ||
364 | QTAILQ_FOREACH(client, &vd->clients, next) { | |
365 | cinfo = g_new0(VncClientInfoList, 1); | |
366 | cinfo->value = qmp_query_vnc_client(client); | |
367 | cinfo->next = prev; | |
368 | prev = cinfo; | |
369 | } | |
370 | return prev; | |
371 | } | |
372 | ||
2b54aa87 | 373 | VncInfo *qmp_query_vnc(Error **errp) |
d96fd29c | 374 | { |
2b54aa87 | 375 | VncInfo *info = g_malloc0(sizeof(*info)); |
d616ccc5 | 376 | VncDisplay *vd = vnc_display_find(NULL); |
04d2529d | 377 | SocketAddress *addr = NULL; |
2b54aa87 | 378 | |
4ee74fa7 | 379 | if (vd == NULL || !vd->nlsock) { |
2b54aa87 | 380 | info->enabled = false; |
d96fd29c | 381 | } else { |
2b54aa87 LC |
382 | info->enabled = true; |
383 | ||
384 | /* for compatibility with the original command */ | |
385 | info->has_clients = true; | |
2d29a436 | 386 | info->clients = qmp_query_client_list(vd); |
d96fd29c | 387 | |
04d2529d | 388 | if (vd->lsock == NULL) { |
417b0b88 PB |
389 | return info; |
390 | } | |
391 | ||
4ee74fa7 | 392 | addr = qio_channel_socket_get_local_address(vd->lsock[0], errp); |
04d2529d | 393 | if (!addr) { |
2b54aa87 LC |
394 | goto out_error; |
395 | } | |
d96fd29c | 396 | |
04d2529d DB |
397 | switch (addr->type) { |
398 | case SOCKET_ADDRESS_KIND_INET: | |
32bafa8f EB |
399 | info->host = g_strdup(addr->u.inet.data->host); |
400 | info->service = g_strdup(addr->u.inet.data->port); | |
401 | if (addr->u.inet.data->ipv6) { | |
04d2529d DB |
402 | info->family = NETWORK_ADDRESS_FAMILY_IPV6; |
403 | } else { | |
404 | info->family = NETWORK_ADDRESS_FAMILY_IPV4; | |
405 | } | |
406 | break; | |
407 | ||
408 | case SOCKET_ADDRESS_KIND_UNIX: | |
409 | info->host = g_strdup(""); | |
32bafa8f | 410 | info->service = g_strdup(addr->u.q_unix.data->path); |
04d2529d DB |
411 | info->family = NETWORK_ADDRESS_FAMILY_UNIX; |
412 | break; | |
413 | ||
414 | default: | |
415 | error_setg(errp, "Unsupported socket kind %d", | |
416 | addr->type); | |
2b54aa87 | 417 | goto out_error; |
1ff7df1a | 418 | } |
2b54aa87 LC |
419 | |
420 | info->has_host = true; | |
2b54aa87 | 421 | info->has_service = true; |
2b54aa87 | 422 | info->has_family = true; |
2b54aa87 LC |
423 | |
424 | info->has_auth = true; | |
d616ccc5 | 425 | info->auth = g_strdup(vnc_auth_name(vd)); |
a9ce8590 | 426 | } |
2b54aa87 | 427 | |
04d2529d | 428 | qapi_free_SocketAddress(addr); |
2b54aa87 LC |
429 | return info; |
430 | ||
431 | out_error: | |
04d2529d | 432 | qapi_free_SocketAddress(addr); |
2b54aa87 LC |
433 | qapi_free_VncInfo(info); |
434 | return NULL; | |
a9ce8590 FB |
435 | } |
436 | ||
2a7e6857 DB |
437 | |
438 | static void qmp_query_auth(int auth, int subauth, | |
439 | VncPrimaryAuth *qmp_auth, | |
440 | VncVencryptSubAuth *qmp_vencrypt, | |
441 | bool *qmp_has_vencrypt); | |
442 | ||
443 | static VncServerInfo2List *qmp_query_server_entry(QIOChannelSocket *ioc, | |
444 | bool websocket, | |
445 | int auth, | |
446 | int subauth, | |
447 | VncServerInfo2List *prev) | |
df887684 | 448 | { |
2a7e6857 DB |
449 | VncServerInfo2List *list; |
450 | VncServerInfo2 *info; | |
04d2529d DB |
451 | Error *err = NULL; |
452 | SocketAddress *addr; | |
453 | ||
454 | addr = qio_channel_socket_get_local_address(ioc, &err); | |
455 | if (!addr) { | |
456 | error_free(err); | |
df887684 GH |
457 | return prev; |
458 | } | |
459 | ||
2a7e6857 DB |
460 | info = g_new0(VncServerInfo2, 1); |
461 | vnc_init_basic_info(addr, qapi_VncServerInfo2_base(info), &err); | |
04d2529d DB |
462 | qapi_free_SocketAddress(addr); |
463 | if (err) { | |
2a7e6857 | 464 | qapi_free_VncServerInfo2(info); |
04d2529d DB |
465 | error_free(err); |
466 | return prev; | |
467 | } | |
4478aa76 | 468 | info->websocket = websocket; |
df887684 | 469 | |
2a7e6857 DB |
470 | qmp_query_auth(auth, subauth, &info->auth, |
471 | &info->vencrypt, &info->has_vencrypt); | |
472 | ||
473 | list = g_new0(VncServerInfo2List, 1); | |
df887684 GH |
474 | list->value = info; |
475 | list->next = prev; | |
476 | return list; | |
477 | } | |
478 | ||
2a7e6857 DB |
479 | static void qmp_query_auth(int auth, int subauth, |
480 | VncPrimaryAuth *qmp_auth, | |
481 | VncVencryptSubAuth *qmp_vencrypt, | |
482 | bool *qmp_has_vencrypt) | |
df887684 | 483 | { |
2a7e6857 | 484 | switch (auth) { |
df887684 | 485 | case VNC_AUTH_VNC: |
2a7e6857 | 486 | *qmp_auth = VNC_PRIMARY_AUTH_VNC; |
df887684 GH |
487 | break; |
488 | case VNC_AUTH_RA2: | |
2a7e6857 | 489 | *qmp_auth = VNC_PRIMARY_AUTH_RA2; |
df887684 GH |
490 | break; |
491 | case VNC_AUTH_RA2NE: | |
2a7e6857 | 492 | *qmp_auth = VNC_PRIMARY_AUTH_RA2NE; |
df887684 GH |
493 | break; |
494 | case VNC_AUTH_TIGHT: | |
2a7e6857 | 495 | *qmp_auth = VNC_PRIMARY_AUTH_TIGHT; |
df887684 GH |
496 | break; |
497 | case VNC_AUTH_ULTRA: | |
2a7e6857 | 498 | *qmp_auth = VNC_PRIMARY_AUTH_ULTRA; |
df887684 GH |
499 | break; |
500 | case VNC_AUTH_TLS: | |
2a7e6857 | 501 | *qmp_auth = VNC_PRIMARY_AUTH_TLS; |
df887684 GH |
502 | break; |
503 | case VNC_AUTH_VENCRYPT: | |
2a7e6857 DB |
504 | *qmp_auth = VNC_PRIMARY_AUTH_VENCRYPT; |
505 | *qmp_has_vencrypt = true; | |
506 | switch (subauth) { | |
df887684 | 507 | case VNC_AUTH_VENCRYPT_PLAIN: |
2a7e6857 | 508 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_PLAIN; |
df887684 GH |
509 | break; |
510 | case VNC_AUTH_VENCRYPT_TLSNONE: | |
2a7e6857 | 511 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_NONE; |
df887684 GH |
512 | break; |
513 | case VNC_AUTH_VENCRYPT_TLSVNC: | |
2a7e6857 | 514 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_VNC; |
df887684 GH |
515 | break; |
516 | case VNC_AUTH_VENCRYPT_TLSPLAIN: | |
2a7e6857 | 517 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_PLAIN; |
df887684 GH |
518 | break; |
519 | case VNC_AUTH_VENCRYPT_X509NONE: | |
2a7e6857 | 520 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_NONE; |
df887684 GH |
521 | break; |
522 | case VNC_AUTH_VENCRYPT_X509VNC: | |
2a7e6857 | 523 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_VNC; |
df887684 GH |
524 | break; |
525 | case VNC_AUTH_VENCRYPT_X509PLAIN: | |
2a7e6857 | 526 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_PLAIN; |
df887684 GH |
527 | break; |
528 | case VNC_AUTH_VENCRYPT_TLSSASL: | |
2a7e6857 | 529 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_SASL; |
df887684 GH |
530 | break; |
531 | case VNC_AUTH_VENCRYPT_X509SASL: | |
2a7e6857 | 532 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_SASL; |
df887684 GH |
533 | break; |
534 | default: | |
2a7e6857 | 535 | *qmp_has_vencrypt = false; |
df887684 GH |
536 | break; |
537 | } | |
df887684 GH |
538 | break; |
539 | case VNC_AUTH_SASL: | |
2a7e6857 | 540 | *qmp_auth = VNC_PRIMARY_AUTH_SASL; |
df887684 GH |
541 | break; |
542 | case VNC_AUTH_NONE: | |
543 | default: | |
2a7e6857 | 544 | *qmp_auth = VNC_PRIMARY_AUTH_NONE; |
df887684 GH |
545 | break; |
546 | } | |
547 | } | |
548 | ||
549 | VncInfo2List *qmp_query_vnc_servers(Error **errp) | |
550 | { | |
551 | VncInfo2List *item, *prev = NULL; | |
552 | VncInfo2 *info; | |
553 | VncDisplay *vd; | |
554 | DeviceState *dev; | |
4ee74fa7 | 555 | size_t i; |
df887684 GH |
556 | |
557 | QTAILQ_FOREACH(vd, &vnc_displays, next) { | |
558 | info = g_new0(VncInfo2, 1); | |
559 | info->id = g_strdup(vd->id); | |
560 | info->clients = qmp_query_client_list(vd); | |
2a7e6857 DB |
561 | qmp_query_auth(vd->auth, vd->subauth, &info->auth, |
562 | &info->vencrypt, &info->has_vencrypt); | |
df887684 GH |
563 | if (vd->dcl.con) { |
564 | dev = DEVICE(object_property_get_link(OBJECT(vd->dcl.con), | |
565 | "device", NULL)); | |
566 | info->has_display = true; | |
567 | info->display = g_strdup(dev->id); | |
568 | } | |
4ee74fa7 | 569 | for (i = 0; i < vd->nlsock; i++) { |
04d2529d | 570 | info->server = qmp_query_server_entry( |
4ee74fa7 | 571 | vd->lsock[i], false, vd->auth, vd->subauth, info->server); |
df887684 | 572 | } |
4ee74fa7 | 573 | for (i = 0; i < vd->nlwebsock; i++) { |
04d2529d | 574 | info->server = qmp_query_server_entry( |
4ee74fa7 DB |
575 | vd->lwebsock[i], true, vd->ws_auth, |
576 | vd->ws_subauth, info->server); | |
df887684 | 577 | } |
df887684 GH |
578 | |
579 | item = g_new0(VncInfo2List, 1); | |
580 | item->value = info; | |
581 | item->next = prev; | |
582 | prev = item; | |
583 | } | |
584 | return prev; | |
585 | } | |
586 | ||
24236869 FB |
587 | /* TODO |
588 | 1) Get the queue working for IO. | |
589 | 2) there is some weirdness when using the -S option (the screen is grey | |
590 | and not totally invalidated | |
591 | 3) resolutions > 1024 | |
592 | */ | |
593 | ||
38ee14f4 | 594 | static int vnc_update_client(VncState *vs, int has_dirty, bool sync); |
198a0039 | 595 | static void vnc_disconnect_start(VncState *vs); |
24236869 | 596 | |
753b4053 | 597 | static void vnc_colordepth(VncState *vs); |
1fc62412 SS |
598 | static void framebuffer_update_request(VncState *vs, int incremental, |
599 | int x_position, int y_position, | |
600 | int w, int h); | |
0f7b2864 | 601 | static void vnc_refresh(DisplayChangeListener *dcl); |
1fc62412 | 602 | static int vnc_refresh_server_surface(VncDisplay *vd); |
7eac3a87 | 603 | |
d05959c2 GH |
604 | static int vnc_width(VncDisplay *vd) |
605 | { | |
606 | return MIN(VNC_MAX_WIDTH, ROUND_UP(surface_width(vd->ds), | |
607 | VNC_DIRTY_PIXELS_PER_BIT)); | |
608 | } | |
609 | ||
610 | static int vnc_height(VncDisplay *vd) | |
611 | { | |
612 | return MIN(VNC_MAX_HEIGHT, surface_height(vd->ds)); | |
613 | } | |
614 | ||
bea60dd7 PL |
615 | static void vnc_set_area_dirty(DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT], |
616 | VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT), | |
f7b3d68c GH |
617 | VncDisplay *vd, |
618 | int x, int y, int w, int h) | |
619 | { | |
620 | int width = vnc_width(vd); | |
621 | int height = vnc_height(vd); | |
622 | ||
91937225 PL |
623 | /* this is needed this to ensure we updated all affected |
624 | * blocks if x % VNC_DIRTY_PIXELS_PER_BIT != 0 */ | |
b4c85ddc PL |
625 | w += (x % VNC_DIRTY_PIXELS_PER_BIT); |
626 | x -= (x % VNC_DIRTY_PIXELS_PER_BIT); | |
0486e8a7 | 627 | |
9f64916d GH |
628 | x = MIN(x, width); |
629 | y = MIN(y, height); | |
630 | w = MIN(x + w, width) - x; | |
91937225 | 631 | h = MIN(y + h, height); |
788abf8e | 632 | |
b4c85ddc | 633 | for (; y < h; y++) { |
bea60dd7 | 634 | bitmap_set(dirty[y], x / VNC_DIRTY_PIXELS_PER_BIT, |
91937225 | 635 | DIV_ROUND_UP(w, VNC_DIRTY_PIXELS_PER_BIT)); |
b4c85ddc | 636 | } |
24236869 FB |
637 | } |
638 | ||
bea60dd7 PL |
639 | static void vnc_dpy_update(DisplayChangeListener *dcl, |
640 | int x, int y, int w, int h) | |
641 | { | |
642 | VncDisplay *vd = container_of(dcl, VncDisplay, dcl); | |
643 | struct VncSurface *s = &vd->guest; | |
bea60dd7 | 644 | |
f7b3d68c | 645 | vnc_set_area_dirty(s->dirty, vd, x, y, w, h); |
bea60dd7 PL |
646 | } |
647 | ||
70a4568f CC |
648 | void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, |
649 | int32_t encoding) | |
24236869 FB |
650 | { |
651 | vnc_write_u16(vs, x); | |
652 | vnc_write_u16(vs, y); | |
653 | vnc_write_u16(vs, w); | |
654 | vnc_write_u16(vs, h); | |
655 | ||
656 | vnc_write_s32(vs, encoding); | |
657 | } | |
658 | ||
32ed2680 | 659 | |
621aaeb9 GH |
660 | static void vnc_desktop_resize(VncState *vs) |
661 | { | |
04d2529d | 662 | if (vs->ioc == NULL || !vnc_has_feature(vs, VNC_FEATURE_RESIZE)) { |
621aaeb9 GH |
663 | return; |
664 | } | |
bea60dd7 PL |
665 | if (vs->client_width == pixman_image_get_width(vs->vd->server) && |
666 | vs->client_height == pixman_image_get_height(vs->vd->server)) { | |
1d4b638a GH |
667 | return; |
668 | } | |
bea60dd7 PL |
669 | vs->client_width = pixman_image_get_width(vs->vd->server); |
670 | vs->client_height = pixman_image_get_height(vs->vd->server); | |
bd023f95 | 671 | vnc_lock_output(vs); |
621aaeb9 GH |
672 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
673 | vnc_write_u8(vs, 0); | |
674 | vnc_write_u16(vs, 1); /* number of rects */ | |
5862d195 | 675 | vnc_framebuffer_update(vs, 0, 0, vs->client_width, vs->client_height, |
621aaeb9 | 676 | VNC_ENCODING_DESKTOPRESIZE); |
bd023f95 | 677 | vnc_unlock_output(vs); |
621aaeb9 GH |
678 | vnc_flush(vs); |
679 | } | |
680 | ||
bd023f95 CC |
681 | static void vnc_abort_display_jobs(VncDisplay *vd) |
682 | { | |
683 | VncState *vs; | |
684 | ||
685 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
686 | vnc_lock_output(vs); | |
687 | vs->abort = true; | |
688 | vnc_unlock_output(vs); | |
689 | } | |
690 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
691 | vnc_jobs_join(vs); | |
692 | } | |
693 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
694 | vnc_lock_output(vs); | |
695 | vs->abort = false; | |
696 | vnc_unlock_output(vs); | |
697 | } | |
698 | } | |
bd023f95 | 699 | |
9f64916d GH |
700 | int vnc_server_fb_stride(VncDisplay *vd) |
701 | { | |
702 | return pixman_image_get_stride(vd->server); | |
703 | } | |
704 | ||
705 | void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y) | |
706 | { | |
707 | uint8_t *ptr; | |
708 | ||
709 | ptr = (uint8_t *)pixman_image_get_data(vd->server); | |
710 | ptr += y * vnc_server_fb_stride(vd); | |
711 | ptr += x * VNC_SERVER_FB_BYTES; | |
712 | return ptr; | |
713 | } | |
714 | ||
453f842b GH |
715 | static void vnc_update_server_surface(VncDisplay *vd) |
716 | { | |
b69a553b DB |
717 | int width, height; |
718 | ||
453f842b GH |
719 | qemu_pixman_image_unref(vd->server); |
720 | vd->server = NULL; | |
721 | ||
c7628bff GH |
722 | if (QTAILQ_EMPTY(&vd->clients)) { |
723 | return; | |
724 | } | |
725 | ||
b69a553b DB |
726 | width = vnc_width(vd); |
727 | height = vnc_height(vd); | |
453f842b | 728 | vd->server = pixman_image_create_bits(VNC_SERVER_FB_FORMAT, |
b69a553b | 729 | width, height, |
453f842b | 730 | NULL, 0); |
b69a553b DB |
731 | |
732 | memset(vd->guest.dirty, 0x00, sizeof(vd->guest.dirty)); | |
733 | vnc_set_area_dirty(vd->guest.dirty, vd, 0, 0, | |
734 | width, height); | |
453f842b GH |
735 | } |
736 | ||
c12aeb86 | 737 | static void vnc_dpy_switch(DisplayChangeListener *dcl, |
c12aeb86 | 738 | DisplaySurface *surface) |
24236869 | 739 | { |
21ef45d7 | 740 | VncDisplay *vd = container_of(dcl, VncDisplay, dcl); |
41b4bef6 | 741 | VncState *vs; |
1fc62412 | 742 | |
bd023f95 | 743 | vnc_abort_display_jobs(vd); |
453f842b | 744 | vd->ds = surface; |
bd023f95 | 745 | |
1fc62412 | 746 | /* server surface */ |
453f842b | 747 | vnc_update_server_surface(vd); |
24236869 | 748 | |
6baebed7 | 749 | /* guest surface */ |
9f64916d | 750 | qemu_pixman_image_unref(vd->guest.fb); |
d39fa6d8 GH |
751 | vd->guest.fb = pixman_image_ref(surface->image); |
752 | vd->guest.format = surface->format; | |
24236869 | 753 | |
41b4bef6 | 754 | QTAILQ_FOREACH(vs, &vd->clients, next) { |
1fc62412 | 755 | vnc_colordepth(vs); |
1d4b638a | 756 | vnc_desktop_resize(vs); |
d467b679 GH |
757 | if (vs->vd->cursor) { |
758 | vnc_cursor_define(vs); | |
759 | } | |
bea60dd7 | 760 | memset(vs->dirty, 0x00, sizeof(vs->dirty)); |
f7b3d68c | 761 | vnc_set_area_dirty(vs->dirty, vd, 0, 0, |
b69a553b DB |
762 | vnc_width(vd), |
763 | vnc_height(vd)); | |
753b4053 AL |
764 | } |
765 | } | |
766 | ||
3512779a | 767 | /* fastest code */ |
9f64916d | 768 | static void vnc_write_pixels_copy(VncState *vs, |
d467b679 | 769 | void *pixels, int size) |
3512779a FB |
770 | { |
771 | vnc_write(vs, pixels, size); | |
772 | } | |
773 | ||
774 | /* slowest but generic code. */ | |
70a4568f | 775 | void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v) |
3512779a | 776 | { |
7eac3a87 | 777 | uint8_t r, g, b; |
1fc62412 | 778 | |
9f64916d GH |
779 | #if VNC_SERVER_FB_FORMAT == PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8) |
780 | r = (((v & 0x00ff0000) >> 16) << vs->client_pf.rbits) >> 8; | |
781 | g = (((v & 0x0000ff00) >> 8) << vs->client_pf.gbits) >> 8; | |
782 | b = (((v & 0x000000ff) >> 0) << vs->client_pf.bbits) >> 8; | |
783 | #else | |
784 | # error need some bits here if you change VNC_SERVER_FB_FORMAT | |
785 | #endif | |
786 | v = (r << vs->client_pf.rshift) | | |
787 | (g << vs->client_pf.gshift) | | |
788 | (b << vs->client_pf.bshift); | |
789 | switch (vs->client_pf.bytes_per_pixel) { | |
3512779a FB |
790 | case 1: |
791 | buf[0] = v; | |
792 | break; | |
793 | case 2: | |
9f64916d | 794 | if (vs->client_be) { |
3512779a FB |
795 | buf[0] = v >> 8; |
796 | buf[1] = v; | |
797 | } else { | |
798 | buf[1] = v >> 8; | |
799 | buf[0] = v; | |
800 | } | |
801 | break; | |
802 | default: | |
803 | case 4: | |
9f64916d | 804 | if (vs->client_be) { |
3512779a FB |
805 | buf[0] = v >> 24; |
806 | buf[1] = v >> 16; | |
807 | buf[2] = v >> 8; | |
808 | buf[3] = v; | |
809 | } else { | |
810 | buf[3] = v >> 24; | |
811 | buf[2] = v >> 16; | |
812 | buf[1] = v >> 8; | |
813 | buf[0] = v; | |
814 | } | |
815 | break; | |
816 | } | |
817 | } | |
818 | ||
9f64916d | 819 | static void vnc_write_pixels_generic(VncState *vs, |
d467b679 | 820 | void *pixels1, int size) |
3512779a | 821 | { |
3512779a | 822 | uint8_t buf[4]; |
3512779a | 823 | |
9f64916d | 824 | if (VNC_SERVER_FB_BYTES == 4) { |
7eac3a87 AL |
825 | uint32_t *pixels = pixels1; |
826 | int n, i; | |
827 | n = size >> 2; | |
9f64916d | 828 | for (i = 0; i < n; i++) { |
7eac3a87 | 829 | vnc_convert_pixel(vs, buf, pixels[i]); |
9f64916d | 830 | vnc_write(vs, buf, vs->client_pf.bytes_per_pixel); |
7eac3a87 | 831 | } |
3512779a FB |
832 | } |
833 | } | |
834 | ||
a885211e | 835 | int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h) |
24236869 FB |
836 | { |
837 | int i; | |
60fe76f3 | 838 | uint8_t *row; |
1fc62412 | 839 | VncDisplay *vd = vs->vd; |
24236869 | 840 | |
9f64916d | 841 | row = vnc_server_fb_ptr(vd, x, y); |
24236869 | 842 | for (i = 0; i < h; i++) { |
9f64916d GH |
843 | vs->write_pixels(vs, row, w * VNC_SERVER_FB_BYTES); |
844 | row += vnc_server_fb_stride(vd); | |
24236869 | 845 | } |
a885211e | 846 | return 1; |
24236869 FB |
847 | } |
848 | ||
bd023f95 | 849 | int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h) |
24236869 | 850 | { |
a885211e | 851 | int n = 0; |
de3f7de7 PL |
852 | bool encode_raw = false; |
853 | size_t saved_offs = vs->output.offset; | |
a885211e | 854 | |
fb437313 | 855 | switch(vs->vnc_encoding) { |
28a76be8 | 856 | case VNC_ENCODING_ZLIB: |
a885211e | 857 | n = vnc_zlib_send_framebuffer_update(vs, x, y, w, h); |
28a76be8 AL |
858 | break; |
859 | case VNC_ENCODING_HEXTILE: | |
860 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_HEXTILE); | |
a885211e | 861 | n = vnc_hextile_send_framebuffer_update(vs, x, y, w, h); |
28a76be8 | 862 | break; |
380282b0 CC |
863 | case VNC_ENCODING_TIGHT: |
864 | n = vnc_tight_send_framebuffer_update(vs, x, y, w, h); | |
865 | break; | |
efe556ad CC |
866 | case VNC_ENCODING_TIGHT_PNG: |
867 | n = vnc_tight_png_send_framebuffer_update(vs, x, y, w, h); | |
868 | break; | |
148954fa CC |
869 | case VNC_ENCODING_ZRLE: |
870 | n = vnc_zrle_send_framebuffer_update(vs, x, y, w, h); | |
871 | break; | |
872 | case VNC_ENCODING_ZYWRLE: | |
873 | n = vnc_zywrle_send_framebuffer_update(vs, x, y, w, h); | |
874 | break; | |
28a76be8 | 875 | default: |
de3f7de7 | 876 | encode_raw = true; |
28a76be8 | 877 | break; |
fb437313 | 878 | } |
de3f7de7 PL |
879 | |
880 | /* If the client has the same pixel format as our internal buffer and | |
881 | * a RAW encoding would need less space fall back to RAW encoding to | |
882 | * save bandwidth and processing power in the client. */ | |
883 | if (!encode_raw && vs->write_pixels == vnc_write_pixels_copy && | |
884 | 12 + h * w * VNC_SERVER_FB_BYTES <= (vs->output.offset - saved_offs)) { | |
885 | vs->output.offset = saved_offs; | |
886 | encode_raw = true; | |
887 | } | |
888 | ||
889 | if (encode_raw) { | |
890 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW); | |
891 | n = vnc_raw_send_framebuffer_update(vs, x, y, w, h); | |
892 | } | |
893 | ||
a885211e | 894 | return n; |
24236869 FB |
895 | } |
896 | ||
7c20b4a3 | 897 | static void vnc_mouse_set(DisplayChangeListener *dcl, |
7c20b4a3 | 898 | int x, int y, int visible) |
d467b679 GH |
899 | { |
900 | /* can we ask the client(s) to move the pointer ??? */ | |
901 | } | |
902 | ||
903 | static int vnc_cursor_define(VncState *vs) | |
904 | { | |
905 | QEMUCursor *c = vs->vd->cursor; | |
d467b679 GH |
906 | int isize; |
907 | ||
908 | if (vnc_has_feature(vs, VNC_FEATURE_RICH_CURSOR)) { | |
d01f9595 | 909 | vnc_lock_output(vs); |
d467b679 GH |
910 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
911 | vnc_write_u8(vs, 0); /* padding */ | |
912 | vnc_write_u16(vs, 1); /* # of rects */ | |
913 | vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height, | |
914 | VNC_ENCODING_RICH_CURSOR); | |
9f64916d GH |
915 | isize = c->width * c->height * vs->client_pf.bytes_per_pixel; |
916 | vnc_write_pixels_generic(vs, c->data, isize); | |
d467b679 | 917 | vnc_write(vs, vs->vd->cursor_mask, vs->vd->cursor_msize); |
d01f9595 | 918 | vnc_unlock_output(vs); |
d467b679 GH |
919 | return 0; |
920 | } | |
921 | return -1; | |
922 | } | |
923 | ||
7c20b4a3 | 924 | static void vnc_dpy_cursor_define(DisplayChangeListener *dcl, |
7c20b4a3 | 925 | QEMUCursor *c) |
d467b679 | 926 | { |
d616ccc5 | 927 | VncDisplay *vd = container_of(dcl, VncDisplay, dcl); |
d467b679 GH |
928 | VncState *vs; |
929 | ||
930 | cursor_put(vd->cursor); | |
7267c094 | 931 | g_free(vd->cursor_mask); |
d467b679 GH |
932 | |
933 | vd->cursor = c; | |
934 | cursor_get(vd->cursor); | |
935 | vd->cursor_msize = cursor_get_mono_bpl(c) * c->height; | |
7267c094 | 936 | vd->cursor_mask = g_malloc0(vd->cursor_msize); |
d467b679 GH |
937 | cursor_get_mono_mask(c, 0, vd->cursor_mask); |
938 | ||
939 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
940 | vnc_cursor_define(vs); | |
941 | } | |
942 | } | |
943 | ||
4769a881 | 944 | static int find_and_clear_dirty_height(VncState *vs, |
6c71a539 | 945 | int y, int last_x, int x, int height) |
24236869 FB |
946 | { |
947 | int h; | |
948 | ||
6c71a539 | 949 | for (h = 1; h < (height - y); h++) { |
bc2429b9 | 950 | if (!test_bit(last_x, vs->dirty[y + h])) { |
28a76be8 | 951 | break; |
bc2429b9 | 952 | } |
863d7c91 | 953 | bitmap_clear(vs->dirty[y + h], last_x, x - last_x); |
24236869 FB |
954 | } |
955 | ||
956 | return h; | |
957 | } | |
958 | ||
38ee14f4 | 959 | static int vnc_update_client(VncState *vs, int has_dirty, bool sync) |
24236869 | 960 | { |
5a8be0f7 GH |
961 | if (vs->disconnecting) { |
962 | vnc_disconnect_finish(vs); | |
963 | return 0; | |
964 | } | |
965 | ||
63658280 | 966 | vs->has_dirty += has_dirty; |
5a693efd | 967 | if (vs->need_update && !vs->disconnecting) { |
1fc62412 | 968 | VncDisplay *vd = vs->vd; |
bd023f95 | 969 | VncJob *job; |
28a76be8 | 970 | int y; |
2f487a3d | 971 | int height, width; |
bd023f95 CC |
972 | int n = 0; |
973 | ||
703bc68f | 974 | if (vs->output.offset && !vs->audio_cap && !vs->force_update) |
c522d0e2 | 975 | /* kernel send buffers are full -> drop frames to throttle */ |
2430ffe4 | 976 | return 0; |
a0ecfb73 | 977 | |
63658280 | 978 | if (!vs->has_dirty && !vs->audio_cap && !vs->force_update) |
2430ffe4 | 979 | return 0; |
28a76be8 | 980 | |
6baebed7 AL |
981 | /* |
982 | * Send screen updates to the vnc client using the server | |
983 | * surface and server dirty map. guest surface updates | |
984 | * happening in parallel don't disturb us, the next pass will | |
985 | * send them to the client. | |
986 | */ | |
bd023f95 | 987 | job = vnc_job_new(vs); |
28a76be8 | 988 | |
bea60dd7 PL |
989 | height = pixman_image_get_height(vd->server); |
990 | width = pixman_image_get_width(vd->server); | |
847ce6a1 | 991 | |
12b316d4 PL |
992 | y = 0; |
993 | for (;;) { | |
994 | int x, h; | |
995 | unsigned long x2; | |
996 | unsigned long offset = find_next_bit((unsigned long *) &vs->dirty, | |
997 | height * VNC_DIRTY_BPL(vs), | |
998 | y * VNC_DIRTY_BPL(vs)); | |
999 | if (offset == height * VNC_DIRTY_BPL(vs)) { | |
1000 | /* no more dirty bits */ | |
1001 | break; | |
28a76be8 | 1002 | } |
12b316d4 PL |
1003 | y = offset / VNC_DIRTY_BPL(vs); |
1004 | x = offset % VNC_DIRTY_BPL(vs); | |
1005 | x2 = find_next_zero_bit((unsigned long *) &vs->dirty[y], | |
1006 | VNC_DIRTY_BPL(vs), x); | |
1007 | bitmap_clear(vs->dirty[y], x, x2 - x); | |
1008 | h = find_and_clear_dirty_height(vs, y, x, x2, height); | |
2f487a3d PL |
1009 | x2 = MIN(x2, width / VNC_DIRTY_PIXELS_PER_BIT); |
1010 | if (x2 > x) { | |
1011 | n += vnc_job_add_rect(job, x * VNC_DIRTY_PIXELS_PER_BIT, y, | |
1012 | (x2 - x) * VNC_DIRTY_PIXELS_PER_BIT, h); | |
1013 | } | |
0e7d6f60 PL |
1014 | if (!x && x2 == width / VNC_DIRTY_PIXELS_PER_BIT) { |
1015 | y += h; | |
1016 | if (y == height) { | |
1017 | break; | |
1018 | } | |
1019 | } | |
28a76be8 | 1020 | } |
bd023f95 CC |
1021 | |
1022 | vnc_job_push(job); | |
eb214ff8 GH |
1023 | if (sync) { |
1024 | vnc_jobs_join(vs); | |
1025 | } | |
c522d0e2 | 1026 | vs->force_update = 0; |
63658280 | 1027 | vs->has_dirty = 0; |
bd023f95 | 1028 | return n; |
24236869 | 1029 | } |
24236869 | 1030 | |
04d2529d | 1031 | if (vs->disconnecting) { |
198a0039 | 1032 | vnc_disconnect_finish(vs); |
38ee14f4 GH |
1033 | } else if (sync) { |
1034 | vnc_jobs_join(vs); | |
1035 | } | |
2430ffe4 SS |
1036 | |
1037 | return 0; | |
24236869 FB |
1038 | } |
1039 | ||
429a8ed3 | 1040 | /* audio */ |
1041 | static void audio_capture_notify(void *opaque, audcnotification_e cmd) | |
1042 | { | |
1043 | VncState *vs = opaque; | |
1044 | ||
1045 | switch (cmd) { | |
1046 | case AUD_CNOTIFY_DISABLE: | |
bd023f95 | 1047 | vnc_lock_output(vs); |
46a183da DB |
1048 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); |
1049 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
1050 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_END); | |
bd023f95 | 1051 | vnc_unlock_output(vs); |
429a8ed3 | 1052 | vnc_flush(vs); |
1053 | break; | |
1054 | ||
1055 | case AUD_CNOTIFY_ENABLE: | |
bd023f95 | 1056 | vnc_lock_output(vs); |
46a183da DB |
1057 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); |
1058 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
1059 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_BEGIN); | |
bd023f95 | 1060 | vnc_unlock_output(vs); |
429a8ed3 | 1061 | vnc_flush(vs); |
1062 | break; | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | static void audio_capture_destroy(void *opaque) | |
1067 | { | |
1068 | } | |
1069 | ||
1070 | static void audio_capture(void *opaque, void *buf, int size) | |
1071 | { | |
1072 | VncState *vs = opaque; | |
1073 | ||
bd023f95 | 1074 | vnc_lock_output(vs); |
46a183da DB |
1075 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); |
1076 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
1077 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_DATA); | |
429a8ed3 | 1078 | vnc_write_u32(vs, size); |
1079 | vnc_write(vs, buf, size); | |
bd023f95 | 1080 | vnc_unlock_output(vs); |
429a8ed3 | 1081 | vnc_flush(vs); |
1082 | } | |
1083 | ||
1084 | static void audio_add(VncState *vs) | |
1085 | { | |
1086 | struct audio_capture_ops ops; | |
1087 | ||
1088 | if (vs->audio_cap) { | |
027a79c3 | 1089 | error_report("audio already running"); |
429a8ed3 | 1090 | return; |
1091 | } | |
1092 | ||
1093 | ops.notify = audio_capture_notify; | |
1094 | ops.destroy = audio_capture_destroy; | |
1095 | ops.capture = audio_capture; | |
1096 | ||
1a7dafce | 1097 | vs->audio_cap = AUD_add_capture(&vs->as, &ops, vs); |
429a8ed3 | 1098 | if (!vs->audio_cap) { |
027a79c3 | 1099 | error_report("Failed to add audio capture"); |
429a8ed3 | 1100 | } |
1101 | } | |
1102 | ||
1103 | static void audio_del(VncState *vs) | |
1104 | { | |
1105 | if (vs->audio_cap) { | |
1106 | AUD_del_capture(vs->audio_cap, vs); | |
1107 | vs->audio_cap = NULL; | |
1108 | } | |
1109 | } | |
1110 | ||
198a0039 GH |
1111 | static void vnc_disconnect_start(VncState *vs) |
1112 | { | |
04d2529d | 1113 | if (vs->disconnecting) { |
198a0039 | 1114 | return; |
04d2529d | 1115 | } |
8cf36489 | 1116 | vnc_set_share_mode(vs, VNC_SHARE_MODE_DISCONNECTED); |
04d2529d DB |
1117 | if (vs->ioc_tag) { |
1118 | g_source_remove(vs->ioc_tag); | |
1119 | } | |
1120 | qio_channel_close(vs->ioc, NULL); | |
1121 | vs->disconnecting = TRUE; | |
198a0039 GH |
1122 | } |
1123 | ||
7536ee4b | 1124 | void vnc_disconnect_finish(VncState *vs) |
198a0039 | 1125 | { |
7d964c9d CC |
1126 | int i; |
1127 | ||
bd023f95 CC |
1128 | vnc_jobs_join(vs); /* Wait encoding jobs */ |
1129 | ||
1130 | vnc_lock_output(vs); | |
fb6ba0d5 | 1131 | vnc_qmp_event(vs, QAPI_EVENT_VNC_DISCONNECTED); |
0d72f3d3 | 1132 | |
5d418e3b CC |
1133 | buffer_free(&vs->input); |
1134 | buffer_free(&vs->output); | |
4a80dba3 | 1135 | |
fb6ba0d5 | 1136 | qapi_free_VncClientInfo(vs->info); |
4a80dba3 | 1137 | |
161c4f20 | 1138 | vnc_zlib_clear(vs); |
380282b0 | 1139 | vnc_tight_clear(vs); |
148954fa | 1140 | vnc_zrle_clear(vs); |
161c4f20 | 1141 | |
198a0039 GH |
1142 | #ifdef CONFIG_VNC_SASL |
1143 | vnc_sasl_client_cleanup(vs); | |
1144 | #endif /* CONFIG_VNC_SASL */ | |
1145 | audio_del(vs); | |
7bc9318b | 1146 | vnc_release_modifiers(vs); |
198a0039 | 1147 | |
90cd03a3 | 1148 | if (vs->mouse_mode_notifier.notify != NULL) { |
6fd8e79a | 1149 | qemu_remove_mouse_mode_change_notifier(&vs->mouse_mode_notifier); |
90cd03a3 DB |
1150 | } |
1151 | QTAILQ_REMOVE(&vs->vd->clients, vs, next); | |
1152 | if (QTAILQ_EMPTY(&vs->vd->clients)) { | |
1153 | /* last client gone */ | |
1154 | vnc_update_server_surface(vs->vd); | |
6fd8e79a | 1155 | } |
41b4bef6 | 1156 | |
bd023f95 CC |
1157 | vnc_unlock_output(vs); |
1158 | ||
bd023f95 | 1159 | qemu_mutex_destroy(&vs->output_mutex); |
6fd8e79a TH |
1160 | if (vs->bh != NULL) { |
1161 | qemu_bh_delete(vs->bh); | |
1162 | } | |
175b2a6e | 1163 | buffer_free(&vs->jobs_buffer); |
175b2a6e | 1164 | |
7d964c9d | 1165 | for (i = 0; i < VNC_STAT_ROWS; ++i) { |
7267c094 | 1166 | g_free(vs->lossy_rect[i]); |
7d964c9d | 1167 | } |
7267c094 | 1168 | g_free(vs->lossy_rect); |
04d2529d DB |
1169 | |
1170 | object_unref(OBJECT(vs->ioc)); | |
1171 | vs->ioc = NULL; | |
1172 | object_unref(OBJECT(vs->sioc)); | |
1173 | vs->sioc = NULL; | |
7267c094 | 1174 | g_free(vs); |
198a0039 | 1175 | } |
2f9606b3 | 1176 | |
04d2529d | 1177 | ssize_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp) |
24236869 | 1178 | { |
04d2529d DB |
1179 | if (ret <= 0) { |
1180 | if (ret == 0) { | |
1181 | VNC_DEBUG("Closing down client sock: EOF\n"); | |
537848ee | 1182 | vnc_disconnect_start(vs); |
04d2529d | 1183 | } else if (ret != QIO_CHANNEL_ERR_BLOCK) { |
6b557d7c | 1184 | VNC_DEBUG("Closing down client sock: ret %zd (%s)\n", |
04d2529d | 1185 | ret, errp ? error_get_pretty(*errp) : "Unknown"); |
537848ee | 1186 | vnc_disconnect_start(vs); |
ea01e5fd | 1187 | } |
24236869 | 1188 | |
04d2529d DB |
1189 | if (errp) { |
1190 | error_free(*errp); | |
1191 | *errp = NULL; | |
1192 | } | |
28a76be8 | 1193 | return 0; |
24236869 FB |
1194 | } |
1195 | return ret; | |
1196 | } | |
1197 | ||
5fb6c7a8 AL |
1198 | |
1199 | void vnc_client_error(VncState *vs) | |
24236869 | 1200 | { |
198a0039 GH |
1201 | VNC_DEBUG("Closing down client sock: protocol error\n"); |
1202 | vnc_disconnect_start(vs); | |
24236869 FB |
1203 | } |
1204 | ||
3e305e4a | 1205 | |
2f9606b3 AL |
1206 | /* |
1207 | * Called to write a chunk of data to the client socket. The data may | |
1208 | * be the raw data, or may have already been encoded by SASL. | |
1209 | * The data will be written either straight onto the socket, or | |
1210 | * written via the GNUTLS wrappers, if TLS/SSL encryption is enabled | |
1211 | * | |
1212 | * NB, it is theoretically possible to have 2 layers of encryption, | |
1213 | * both SASL, and this TLS layer. It is highly unlikely in practice | |
1214 | * though, since SASL encryption will typically be a no-op if TLS | |
1215 | * is active | |
1216 | * | |
1217 | * Returns the number of bytes written, which may be less than | |
1218 | * the requested 'datalen' if the socket would block. Returns | |
1219 | * -1 on error, and disconnects the client socket. | |
1220 | */ | |
fdd1ab6a | 1221 | ssize_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen) |
24236869 | 1222 | { |
04d2529d | 1223 | Error *err = NULL; |
fdd1ab6a | 1224 | ssize_t ret; |
2cc45228 DB |
1225 | ret = qio_channel_write( |
1226 | vs->ioc, (const char *)data, datalen, &err); | |
23decc87 | 1227 | VNC_DEBUG("Wrote wire %p %zd -> %ld\n", data, datalen, ret); |
04d2529d | 1228 | return vnc_client_io_error(vs, ret, &err); |
2f9606b3 AL |
1229 | } |
1230 | ||
1231 | ||
1232 | /* | |
1233 | * Called to write buffered data to the client socket, when not | |
1234 | * using any SASL SSF encryption layers. Will write as much data | |
1235 | * as possible without blocking. If all buffered data is written, | |
1236 | * will switch the FD poll() handler back to read monitoring. | |
1237 | * | |
1238 | * Returns the number of bytes written, which may be less than | |
1239 | * the buffered output data if the socket would block. Returns | |
1240 | * -1 on error, and disconnects the client socket. | |
1241 | */ | |
fdd1ab6a | 1242 | static ssize_t vnc_client_write_plain(VncState *vs) |
2f9606b3 | 1243 | { |
fdd1ab6a | 1244 | ssize_t ret; |
2f9606b3 AL |
1245 | |
1246 | #ifdef CONFIG_VNC_SASL | |
23decc87 | 1247 | VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n", |
2f9606b3 AL |
1248 | vs->output.buffer, vs->output.capacity, vs->output.offset, |
1249 | vs->sasl.waitWriteSSF); | |
1250 | ||
1251 | if (vs->sasl.conn && | |
1252 | vs->sasl.runSSF && | |
1253 | vs->sasl.waitWriteSSF) { | |
1254 | ret = vnc_client_write_buf(vs, vs->output.buffer, vs->sasl.waitWriteSSF); | |
1255 | if (ret) | |
1256 | vs->sasl.waitWriteSSF -= ret; | |
1257 | } else | |
1258 | #endif /* CONFIG_VNC_SASL */ | |
1259 | ret = vnc_client_write_buf(vs, vs->output.buffer, vs->output.offset); | |
24236869 | 1260 | if (!ret) |
2f9606b3 | 1261 | return 0; |
24236869 | 1262 | |
32ed2680 | 1263 | buffer_advance(&vs->output, ret); |
24236869 FB |
1264 | |
1265 | if (vs->output.offset == 0) { | |
04d2529d DB |
1266 | if (vs->ioc_tag) { |
1267 | g_source_remove(vs->ioc_tag); | |
1268 | } | |
1269 | vs->ioc_tag = qio_channel_add_watch( | |
1270 | vs->ioc, G_IO_IN, vnc_client_io, vs, NULL); | |
24236869 | 1271 | } |
2f9606b3 AL |
1272 | |
1273 | return ret; | |
1274 | } | |
1275 | ||
1276 | ||
1277 | /* | |
1278 | * First function called whenever there is data to be written to | |
1279 | * the client socket. Will delegate actual work according to whether | |
1280 | * SASL SSF layers are enabled (thus requiring encryption calls) | |
1281 | */ | |
04d2529d | 1282 | static void vnc_client_write_locked(VncState *vs) |
2f9606b3 | 1283 | { |
2f9606b3 AL |
1284 | #ifdef CONFIG_VNC_SASL |
1285 | if (vs->sasl.conn && | |
1286 | vs->sasl.runSSF && | |
9678d950 BS |
1287 | !vs->sasl.waitWriteSSF) { |
1288 | vnc_client_write_sasl(vs); | |
1289 | } else | |
2f9606b3 | 1290 | #endif /* CONFIG_VNC_SASL */ |
7536ee4b | 1291 | { |
d5f04223 | 1292 | vnc_client_write_plain(vs); |
7536ee4b | 1293 | } |
24236869 FB |
1294 | } |
1295 | ||
04d2529d | 1296 | static void vnc_client_write(VncState *vs) |
bd023f95 | 1297 | { |
bd023f95 CC |
1298 | |
1299 | vnc_lock_output(vs); | |
d5f04223 | 1300 | if (vs->output.offset) { |
04d2529d DB |
1301 | vnc_client_write_locked(vs); |
1302 | } else if (vs->ioc != NULL) { | |
1303 | if (vs->ioc_tag) { | |
1304 | g_source_remove(vs->ioc_tag); | |
1305 | } | |
1306 | vs->ioc_tag = qio_channel_add_watch( | |
1307 | vs->ioc, G_IO_IN, vnc_client_io, vs, NULL); | |
bd023f95 CC |
1308 | } |
1309 | vnc_unlock_output(vs); | |
1310 | } | |
1311 | ||
5fb6c7a8 | 1312 | void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting) |
24236869 FB |
1313 | { |
1314 | vs->read_handler = func; | |
1315 | vs->read_handler_expect = expecting; | |
1316 | } | |
1317 | ||
2f9606b3 AL |
1318 | |
1319 | /* | |
1320 | * Called to read a chunk of data from the client socket. The data may | |
1321 | * be the raw data, or may need to be further decoded by SASL. | |
1322 | * The data will be read either straight from to the socket, or | |
1323 | * read via the GNUTLS wrappers, if TLS/SSL encryption is enabled | |
1324 | * | |
1325 | * NB, it is theoretically possible to have 2 layers of encryption, | |
1326 | * both SASL, and this TLS layer. It is highly unlikely in practice | |
1327 | * though, since SASL encryption will typically be a no-op if TLS | |
1328 | * is active | |
1329 | * | |
1330 | * Returns the number of bytes read, which may be less than | |
1331 | * the requested 'datalen' if the socket would block. Returns | |
1332 | * -1 on error, and disconnects the client socket. | |
1333 | */ | |
fdd1ab6a | 1334 | ssize_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen) |
24236869 | 1335 | { |
fdd1ab6a | 1336 | ssize_t ret; |
04d2529d | 1337 | Error *err = NULL; |
2cc45228 DB |
1338 | ret = qio_channel_read( |
1339 | vs->ioc, (char *)data, datalen, &err); | |
23decc87 | 1340 | VNC_DEBUG("Read wire %p %zd -> %ld\n", data, datalen, ret); |
04d2529d | 1341 | return vnc_client_io_error(vs, ret, &err); |
2f9606b3 | 1342 | } |
24236869 | 1343 | |
2f9606b3 AL |
1344 | |
1345 | /* | |
1346 | * Called to read data from the client socket to the input buffer, | |
1347 | * when not using any SASL SSF encryption layers. Will read as much | |
1348 | * data as possible without blocking. | |
1349 | * | |
1350 | * Returns the number of bytes read. Returns -1 on error, and | |
1351 | * disconnects the client socket. | |
1352 | */ | |
fdd1ab6a | 1353 | static ssize_t vnc_client_read_plain(VncState *vs) |
2f9606b3 | 1354 | { |
fdd1ab6a | 1355 | ssize_t ret; |
23decc87 | 1356 | VNC_DEBUG("Read plain %p size %zd offset %zd\n", |
2f9606b3 AL |
1357 | vs->input.buffer, vs->input.capacity, vs->input.offset); |
1358 | buffer_reserve(&vs->input, 4096); | |
1359 | ret = vnc_client_read_buf(vs, buffer_end(&vs->input), 4096); | |
1360 | if (!ret) | |
1361 | return 0; | |
24236869 | 1362 | vs->input.offset += ret; |
2f9606b3 AL |
1363 | return ret; |
1364 | } | |
1365 | ||
175b2a6e CC |
1366 | static void vnc_jobs_bh(void *opaque) |
1367 | { | |
1368 | VncState *vs = opaque; | |
1369 | ||
1370 | vnc_jobs_consume_buffer(vs); | |
1371 | } | |
2f9606b3 AL |
1372 | |
1373 | /* | |
1374 | * First function called whenever there is more data to be read from | |
1375 | * the client socket. Will delegate actual work according to whether | |
1376 | * SASL SSF layers are enabled (thus requiring decryption calls) | |
ea697449 | 1377 | * Returns 0 on success, -1 if client disconnected |
2f9606b3 | 1378 | */ |
ea697449 | 1379 | static int vnc_client_read(VncState *vs) |
2f9606b3 | 1380 | { |
fdd1ab6a | 1381 | ssize_t ret; |
2f9606b3 AL |
1382 | |
1383 | #ifdef CONFIG_VNC_SASL | |
1384 | if (vs->sasl.conn && vs->sasl.runSSF) | |
1385 | ret = vnc_client_read_sasl(vs); | |
1386 | else | |
1387 | #endif /* CONFIG_VNC_SASL */ | |
d5f04223 | 1388 | ret = vnc_client_read_plain(vs); |
198a0039 | 1389 | if (!ret) { |
04d2529d | 1390 | if (vs->disconnecting) { |
198a0039 | 1391 | vnc_disconnect_finish(vs); |
ea697449 | 1392 | return -1; |
04d2529d | 1393 | } |
ea697449 | 1394 | return 0; |
198a0039 | 1395 | } |
24236869 FB |
1396 | |
1397 | while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) { | |
28a76be8 AL |
1398 | size_t len = vs->read_handler_expect; |
1399 | int ret; | |
1400 | ||
1401 | ret = vs->read_handler(vs, vs->input.buffer, len); | |
04d2529d | 1402 | if (vs->disconnecting) { |
198a0039 | 1403 | vnc_disconnect_finish(vs); |
ea697449 | 1404 | return -1; |
198a0039 | 1405 | } |
28a76be8 AL |
1406 | |
1407 | if (!ret) { | |
32ed2680 | 1408 | buffer_advance(&vs->input, len); |
28a76be8 AL |
1409 | } else { |
1410 | vs->read_handler_expect = ret; | |
1411 | } | |
24236869 | 1412 | } |
ea697449 | 1413 | return 0; |
24236869 FB |
1414 | } |
1415 | ||
04d2529d DB |
1416 | gboolean vnc_client_io(QIOChannel *ioc G_GNUC_UNUSED, |
1417 | GIOCondition condition, void *opaque) | |
1418 | { | |
1419 | VncState *vs = opaque; | |
1420 | if (condition & G_IO_IN) { | |
ea697449 DB |
1421 | if (vnc_client_read(vs) < 0) { |
1422 | return TRUE; | |
1423 | } | |
04d2529d DB |
1424 | } |
1425 | if (condition & G_IO_OUT) { | |
1426 | vnc_client_write(vs); | |
1427 | } | |
1428 | return TRUE; | |
1429 | } | |
1430 | ||
1431 | ||
5fb6c7a8 | 1432 | void vnc_write(VncState *vs, const void *data, size_t len) |
24236869 FB |
1433 | { |
1434 | buffer_reserve(&vs->output, len); | |
1435 | ||
04d2529d DB |
1436 | if (vs->ioc != NULL && buffer_empty(&vs->output)) { |
1437 | if (vs->ioc_tag) { | |
1438 | g_source_remove(vs->ioc_tag); | |
1439 | } | |
1440 | vs->ioc_tag = qio_channel_add_watch( | |
1441 | vs->ioc, G_IO_IN | G_IO_OUT, vnc_client_io, vs, NULL); | |
24236869 FB |
1442 | } |
1443 | ||
1444 | buffer_append(&vs->output, data, len); | |
1445 | } | |
1446 | ||
5fb6c7a8 | 1447 | void vnc_write_s32(VncState *vs, int32_t value) |
24236869 FB |
1448 | { |
1449 | vnc_write_u32(vs, *(uint32_t *)&value); | |
1450 | } | |
1451 | ||
5fb6c7a8 | 1452 | void vnc_write_u32(VncState *vs, uint32_t value) |
24236869 FB |
1453 | { |
1454 | uint8_t buf[4]; | |
1455 | ||
1456 | buf[0] = (value >> 24) & 0xFF; | |
1457 | buf[1] = (value >> 16) & 0xFF; | |
1458 | buf[2] = (value >> 8) & 0xFF; | |
1459 | buf[3] = value & 0xFF; | |
1460 | ||
1461 | vnc_write(vs, buf, 4); | |
1462 | } | |
1463 | ||
5fb6c7a8 | 1464 | void vnc_write_u16(VncState *vs, uint16_t value) |
24236869 | 1465 | { |
64f5a135 | 1466 | uint8_t buf[2]; |
24236869 FB |
1467 | |
1468 | buf[0] = (value >> 8) & 0xFF; | |
1469 | buf[1] = value & 0xFF; | |
1470 | ||
1471 | vnc_write(vs, buf, 2); | |
1472 | } | |
1473 | ||
5fb6c7a8 | 1474 | void vnc_write_u8(VncState *vs, uint8_t value) |
24236869 FB |
1475 | { |
1476 | vnc_write(vs, (char *)&value, 1); | |
1477 | } | |
1478 | ||
5fb6c7a8 | 1479 | void vnc_flush(VncState *vs) |
24236869 | 1480 | { |
bd023f95 | 1481 | vnc_lock_output(vs); |
d5f04223 | 1482 | if (vs->ioc != NULL && vs->output.offset) { |
bd023f95 CC |
1483 | vnc_client_write_locked(vs); |
1484 | } | |
1485 | vnc_unlock_output(vs); | |
24236869 FB |
1486 | } |
1487 | ||
71a8cdec | 1488 | static uint8_t read_u8(uint8_t *data, size_t offset) |
24236869 FB |
1489 | { |
1490 | return data[offset]; | |
1491 | } | |
1492 | ||
71a8cdec | 1493 | static uint16_t read_u16(uint8_t *data, size_t offset) |
24236869 FB |
1494 | { |
1495 | return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF); | |
1496 | } | |
1497 | ||
71a8cdec | 1498 | static int32_t read_s32(uint8_t *data, size_t offset) |
24236869 FB |
1499 | { |
1500 | return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) | | |
28a76be8 | 1501 | (data[offset + 2] << 8) | data[offset + 3]); |
24236869 FB |
1502 | } |
1503 | ||
5fb6c7a8 | 1504 | uint32_t read_u32(uint8_t *data, size_t offset) |
24236869 FB |
1505 | { |
1506 | return ((data[offset] << 24) | (data[offset + 1] << 16) | | |
28a76be8 | 1507 | (data[offset + 2] << 8) | data[offset + 3]); |
24236869 FB |
1508 | } |
1509 | ||
60fe76f3 | 1510 | static void client_cut_text(VncState *vs, size_t len, uint8_t *text) |
24236869 FB |
1511 | { |
1512 | } | |
1513 | ||
9e8dd451 | 1514 | static void check_pointer_type_change(Notifier *notifier, void *data) |
564c337e | 1515 | { |
37c34d9d | 1516 | VncState *vs = container_of(notifier, VncState, mouse_mode_notifier); |
14768eba | 1517 | int absolute = qemu_input_is_absolute(); |
37c34d9d | 1518 | |
29fa4ed9 | 1519 | if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE) && vs->absolute != absolute) { |
bd023f95 | 1520 | vnc_lock_output(vs); |
46a183da | 1521 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
28a76be8 AL |
1522 | vnc_write_u8(vs, 0); |
1523 | vnc_write_u16(vs, 1); | |
1524 | vnc_framebuffer_update(vs, absolute, 0, | |
bea60dd7 PL |
1525 | pixman_image_get_width(vs->vd->server), |
1526 | pixman_image_get_height(vs->vd->server), | |
29fa4ed9 | 1527 | VNC_ENCODING_POINTER_TYPE_CHANGE); |
bd023f95 | 1528 | vnc_unlock_output(vs); |
28a76be8 | 1529 | vnc_flush(vs); |
564c337e FB |
1530 | } |
1531 | vs->absolute = absolute; | |
1532 | } | |
1533 | ||
24236869 FB |
1534 | static void pointer_event(VncState *vs, int button_mask, int x, int y) |
1535 | { | |
7fb1cf16 | 1536 | static uint32_t bmap[INPUT_BUTTON__MAX] = { |
14768eba GH |
1537 | [INPUT_BUTTON_LEFT] = 0x01, |
1538 | [INPUT_BUTTON_MIDDLE] = 0x02, | |
1539 | [INPUT_BUTTON_RIGHT] = 0x04, | |
f22d0af0 GH |
1540 | [INPUT_BUTTON_WHEEL_UP] = 0x08, |
1541 | [INPUT_BUTTON_WHEEL_DOWN] = 0x10, | |
14768eba GH |
1542 | }; |
1543 | QemuConsole *con = vs->vd->dcl.con; | |
bea60dd7 PL |
1544 | int width = pixman_image_get_width(vs->vd->server); |
1545 | int height = pixman_image_get_height(vs->vd->server); | |
24236869 | 1546 | |
14768eba GH |
1547 | if (vs->last_bmask != button_mask) { |
1548 | qemu_input_update_buttons(con, bmap, vs->last_bmask, button_mask); | |
1549 | vs->last_bmask = button_mask; | |
1550 | } | |
564c337e FB |
1551 | |
1552 | if (vs->absolute) { | |
14768eba GH |
1553 | qemu_input_queue_abs(con, INPUT_AXIS_X, x, width); |
1554 | qemu_input_queue_abs(con, INPUT_AXIS_Y, y, height); | |
29fa4ed9 | 1555 | } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) { |
14768eba GH |
1556 | qemu_input_queue_rel(con, INPUT_AXIS_X, x - 0x7FFF); |
1557 | qemu_input_queue_rel(con, INPUT_AXIS_Y, y - 0x7FFF); | |
564c337e | 1558 | } else { |
14768eba GH |
1559 | if (vs->last_x != -1) { |
1560 | qemu_input_queue_rel(con, INPUT_AXIS_X, x - vs->last_x); | |
1561 | qemu_input_queue_rel(con, INPUT_AXIS_Y, y - vs->last_y); | |
1562 | } | |
28a76be8 AL |
1563 | vs->last_x = x; |
1564 | vs->last_y = y; | |
24236869 | 1565 | } |
14768eba | 1566 | qemu_input_event_sync(); |
24236869 FB |
1567 | } |
1568 | ||
64f5a135 FB |
1569 | static void reset_keys(VncState *vs) |
1570 | { | |
1571 | int i; | |
1572 | for(i = 0; i < 256; i++) { | |
1573 | if (vs->modifiers_state[i]) { | |
8d447d10 | 1574 | qemu_input_event_send_key_number(vs->vd->dcl.con, i, false); |
c5ce8333 | 1575 | qemu_input_event_send_key_delay(vs->vd->key_delay_ms); |
64f5a135 FB |
1576 | vs->modifiers_state[i] = 0; |
1577 | } | |
1578 | } | |
1579 | } | |
1580 | ||
a528b80c AZ |
1581 | static void press_key(VncState *vs, int keysym) |
1582 | { | |
44bb61c8 | 1583 | int keycode = keysym2scancode(vs->vd->kbd_layout, keysym) & SCANCODE_KEYMASK; |
8d447d10 | 1584 | qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, true); |
c5ce8333 | 1585 | qemu_input_event_send_key_delay(vs->vd->key_delay_ms); |
8d447d10 | 1586 | qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, false); |
c5ce8333 | 1587 | qemu_input_event_send_key_delay(vs->vd->key_delay_ms); |
a528b80c AZ |
1588 | } |
1589 | ||
ab99e5c1 LL |
1590 | static void vnc_led_state_change(VncState *vs) |
1591 | { | |
ab99e5c1 LL |
1592 | if (!vnc_has_feature(vs, VNC_FEATURE_LED_STATE)) { |
1593 | return; | |
1594 | } | |
1595 | ||
ab99e5c1 LL |
1596 | vnc_lock_output(vs); |
1597 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); | |
1598 | vnc_write_u8(vs, 0); | |
1599 | vnc_write_u16(vs, 1); | |
1600 | vnc_framebuffer_update(vs, 0, 0, 1, 1, VNC_ENCODING_LED_STATE); | |
a54f0d2b | 1601 | vnc_write_u8(vs, vs->vd->ledstate); |
ab99e5c1 LL |
1602 | vnc_unlock_output(vs); |
1603 | vnc_flush(vs); | |
1604 | } | |
1605 | ||
7ffb82ca GH |
1606 | static void kbd_leds(void *opaque, int ledstate) |
1607 | { | |
a54f0d2b PO |
1608 | VncDisplay *vd = opaque; |
1609 | VncState *client; | |
7ffb82ca | 1610 | |
40066175 GH |
1611 | trace_vnc_key_guest_leds((ledstate & QEMU_CAPS_LOCK_LED), |
1612 | (ledstate & QEMU_NUM_LOCK_LED), | |
1613 | (ledstate & QEMU_SCROLL_LOCK_LED)); | |
1614 | ||
a54f0d2b PO |
1615 | if (ledstate == vd->ledstate) { |
1616 | return; | |
96f3d174 | 1617 | } |
ab99e5c1 | 1618 | |
a54f0d2b PO |
1619 | vd->ledstate = ledstate; |
1620 | ||
1621 | QTAILQ_FOREACH(client, &vd->clients, next) { | |
1622 | vnc_led_state_change(client); | |
ab99e5c1 | 1623 | } |
7ffb82ca GH |
1624 | } |
1625 | ||
9ca313aa | 1626 | static void do_key_event(VncState *vs, int down, int keycode, int sym) |
24236869 | 1627 | { |
64f5a135 FB |
1628 | /* QEMU console switch */ |
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 | if (down) | |
1637 | vs->modifiers_state[keycode] = 1; | |
1638 | else | |
1639 | vs->modifiers_state[keycode] = 0; | |
1640 | break; | |
5fafdf24 | 1641 | case 0x02 ... 0x0a: /* '1' to '9' keys */ |
1d0d59fe GH |
1642 | if (vs->vd->dcl.con == NULL && |
1643 | down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) { | |
64f5a135 FB |
1644 | /* Reset the modifiers sent to the current console */ |
1645 | reset_keys(vs); | |
1646 | console_select(keycode - 0x02); | |
1647 | return; | |
1648 | } | |
1649 | break; | |
28a76be8 AL |
1650 | case 0x3a: /* CapsLock */ |
1651 | case 0x45: /* NumLock */ | |
7ffb82ca | 1652 | if (down) |
a528b80c AZ |
1653 | vs->modifiers_state[keycode] ^= 1; |
1654 | break; | |
1655 | } | |
1656 | ||
e7b2aacc LL |
1657 | /* Turn off the lock state sync logic if the client support the led |
1658 | state extension. | |
1659 | */ | |
9892088b | 1660 | if (down && vs->vd->lock_key_sync && |
e7b2aacc | 1661 | !vnc_has_feature(vs, VNC_FEATURE_LED_STATE) && |
3a0558b5 | 1662 | keycode_is_keypad(vs->vd->kbd_layout, keycode)) { |
a528b80c AZ |
1663 | /* If the numlock state needs to change then simulate an additional |
1664 | keypress before sending this one. This will happen if the user | |
1665 | toggles numlock away from the VNC window. | |
1666 | */ | |
753b4053 | 1667 | if (keysym_is_numlock(vs->vd->kbd_layout, sym & 0xFFFF)) { |
a528b80c | 1668 | if (!vs->modifiers_state[0x45]) { |
40066175 | 1669 | trace_vnc_key_sync_numlock(true); |
a528b80c AZ |
1670 | vs->modifiers_state[0x45] = 1; |
1671 | press_key(vs, 0xff7f); | |
1672 | } | |
1673 | } else { | |
1674 | if (vs->modifiers_state[0x45]) { | |
40066175 | 1675 | trace_vnc_key_sync_numlock(false); |
a528b80c AZ |
1676 | vs->modifiers_state[0x45] = 0; |
1677 | press_key(vs, 0xff7f); | |
1678 | } | |
1679 | } | |
64f5a135 | 1680 | } |
24236869 | 1681 | |
9892088b | 1682 | if (down && vs->vd->lock_key_sync && |
e7b2aacc | 1683 | !vnc_has_feature(vs, VNC_FEATURE_LED_STATE) && |
3a0558b5 | 1684 | ((sym >= 'A' && sym <= 'Z') || (sym >= 'a' && sym <= 'z'))) { |
6b132502 GH |
1685 | /* If the capslock state needs to change then simulate an additional |
1686 | keypress before sending this one. This will happen if the user | |
1687 | toggles capslock away from the VNC window. | |
1688 | */ | |
1689 | int uppercase = !!(sym >= 'A' && sym <= 'Z'); | |
1690 | int shift = !!(vs->modifiers_state[0x2a] | vs->modifiers_state[0x36]); | |
1691 | int capslock = !!(vs->modifiers_state[0x3a]); | |
1692 | if (capslock) { | |
1693 | if (uppercase == shift) { | |
40066175 | 1694 | trace_vnc_key_sync_capslock(false); |
6b132502 GH |
1695 | vs->modifiers_state[0x3a] = 0; |
1696 | press_key(vs, 0xffe5); | |
1697 | } | |
1698 | } else { | |
1699 | if (uppercase != shift) { | |
40066175 | 1700 | trace_vnc_key_sync_capslock(true); |
6b132502 GH |
1701 | vs->modifiers_state[0x3a] = 1; |
1702 | press_key(vs, 0xffe5); | |
1703 | } | |
1704 | } | |
1705 | } | |
1706 | ||
81c0d5a6 | 1707 | if (qemu_console_is_graphic(NULL)) { |
8d447d10 | 1708 | qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, down); |
c5ce8333 | 1709 | qemu_input_event_send_key_delay(vs->vd->key_delay_ms); |
64f5a135 | 1710 | } else { |
e26437c2 GH |
1711 | bool numlock = vs->modifiers_state[0x45]; |
1712 | bool control = (vs->modifiers_state[0x1d] || | |
1713 | vs->modifiers_state[0x9d]); | |
64f5a135 FB |
1714 | /* QEMU console emulation */ |
1715 | if (down) { | |
1716 | switch (keycode) { | |
1717 | case 0x2a: /* Left Shift */ | |
1718 | case 0x36: /* Right Shift */ | |
1719 | case 0x1d: /* Left CTRL */ | |
1720 | case 0x9d: /* Right CTRL */ | |
1721 | case 0x38: /* Left ALT */ | |
1722 | case 0xb8: /* Right ALT */ | |
1723 | break; | |
1724 | case 0xc8: | |
1725 | kbd_put_keysym(QEMU_KEY_UP); | |
1726 | break; | |
1727 | case 0xd0: | |
1728 | kbd_put_keysym(QEMU_KEY_DOWN); | |
1729 | break; | |
1730 | case 0xcb: | |
1731 | kbd_put_keysym(QEMU_KEY_LEFT); | |
1732 | break; | |
1733 | case 0xcd: | |
1734 | kbd_put_keysym(QEMU_KEY_RIGHT); | |
1735 | break; | |
1736 | case 0xd3: | |
1737 | kbd_put_keysym(QEMU_KEY_DELETE); | |
1738 | break; | |
1739 | case 0xc7: | |
1740 | kbd_put_keysym(QEMU_KEY_HOME); | |
1741 | break; | |
1742 | case 0xcf: | |
1743 | kbd_put_keysym(QEMU_KEY_END); | |
1744 | break; | |
1745 | case 0xc9: | |
1746 | kbd_put_keysym(QEMU_KEY_PAGEUP); | |
1747 | break; | |
1748 | case 0xd1: | |
1749 | kbd_put_keysym(QEMU_KEY_PAGEDOWN); | |
1750 | break; | |
bb0a18e1 GH |
1751 | |
1752 | case 0x47: | |
1753 | kbd_put_keysym(numlock ? '7' : QEMU_KEY_HOME); | |
1754 | break; | |
1755 | case 0x48: | |
1756 | kbd_put_keysym(numlock ? '8' : QEMU_KEY_UP); | |
1757 | break; | |
1758 | case 0x49: | |
1759 | kbd_put_keysym(numlock ? '9' : QEMU_KEY_PAGEUP); | |
1760 | break; | |
1761 | case 0x4b: | |
1762 | kbd_put_keysym(numlock ? '4' : QEMU_KEY_LEFT); | |
1763 | break; | |
1764 | case 0x4c: | |
1765 | kbd_put_keysym('5'); | |
1766 | break; | |
1767 | case 0x4d: | |
1768 | kbd_put_keysym(numlock ? '6' : QEMU_KEY_RIGHT); | |
1769 | break; | |
1770 | case 0x4f: | |
1771 | kbd_put_keysym(numlock ? '1' : QEMU_KEY_END); | |
1772 | break; | |
1773 | case 0x50: | |
1774 | kbd_put_keysym(numlock ? '2' : QEMU_KEY_DOWN); | |
1775 | break; | |
1776 | case 0x51: | |
1777 | kbd_put_keysym(numlock ? '3' : QEMU_KEY_PAGEDOWN); | |
1778 | break; | |
1779 | case 0x52: | |
1780 | kbd_put_keysym('0'); | |
1781 | break; | |
1782 | case 0x53: | |
1783 | kbd_put_keysym(numlock ? '.' : QEMU_KEY_DELETE); | |
1784 | break; | |
1785 | ||
1786 | case 0xb5: | |
1787 | kbd_put_keysym('/'); | |
1788 | break; | |
1789 | case 0x37: | |
1790 | kbd_put_keysym('*'); | |
1791 | break; | |
1792 | case 0x4a: | |
1793 | kbd_put_keysym('-'); | |
1794 | break; | |
1795 | case 0x4e: | |
1796 | kbd_put_keysym('+'); | |
1797 | break; | |
1798 | case 0x9c: | |
1799 | kbd_put_keysym('\n'); | |
1800 | break; | |
1801 | ||
64f5a135 | 1802 | default: |
e26437c2 GH |
1803 | if (control) { |
1804 | kbd_put_keysym(sym & 0x1f); | |
1805 | } else { | |
1806 | kbd_put_keysym(sym); | |
1807 | } | |
64f5a135 FB |
1808 | break; |
1809 | } | |
1810 | } | |
1811 | } | |
24236869 FB |
1812 | } |
1813 | ||
7bc9318b GH |
1814 | static void vnc_release_modifiers(VncState *vs) |
1815 | { | |
1816 | static const int keycodes[] = { | |
1817 | /* shift, control, alt keys, both left & right */ | |
1818 | 0x2a, 0x36, 0x1d, 0x9d, 0x38, 0xb8, | |
1819 | }; | |
1820 | int i, keycode; | |
1821 | ||
81c0d5a6 | 1822 | if (!qemu_console_is_graphic(NULL)) { |
7bc9318b GH |
1823 | return; |
1824 | } | |
1825 | for (i = 0; i < ARRAY_SIZE(keycodes); i++) { | |
1826 | keycode = keycodes[i]; | |
1827 | if (!vs->modifiers_state[keycode]) { | |
1828 | continue; | |
1829 | } | |
8d447d10 | 1830 | qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, false); |
c5ce8333 | 1831 | qemu_input_event_send_key_delay(vs->vd->key_delay_ms); |
7bc9318b GH |
1832 | } |
1833 | } | |
1834 | ||
40066175 GH |
1835 | static const char *code2name(int keycode) |
1836 | { | |
1837 | return QKeyCode_lookup[qemu_input_key_number_to_qcode(keycode)]; | |
1838 | } | |
1839 | ||
bdbd7676 FB |
1840 | static void key_event(VncState *vs, int down, uint32_t sym) |
1841 | { | |
9ca313aa | 1842 | int keycode; |
4a93fe17 | 1843 | int lsym = sym; |
9ca313aa | 1844 | |
81c0d5a6 | 1845 | if (lsym >= 'A' && lsym <= 'Z' && qemu_console_is_graphic(NULL)) { |
4a93fe17 GH |
1846 | lsym = lsym - 'A' + 'a'; |
1847 | } | |
9ca313aa | 1848 | |
44bb61c8 | 1849 | keycode = keysym2scancode(vs->vd->kbd_layout, lsym & 0xFFFF) & SCANCODE_KEYMASK; |
40066175 | 1850 | trace_vnc_key_event_map(down, sym, keycode, code2name(keycode)); |
9ca313aa AL |
1851 | do_key_event(vs, down, keycode, sym); |
1852 | } | |
1853 | ||
1854 | static void ext_key_event(VncState *vs, int down, | |
1855 | uint32_t sym, uint16_t keycode) | |
1856 | { | |
1857 | /* if the user specifies a keyboard layout, always use it */ | |
40066175 | 1858 | if (keyboard_layout) { |
9ca313aa | 1859 | key_event(vs, down, sym); |
40066175 GH |
1860 | } else { |
1861 | trace_vnc_key_event_ext(down, sym, keycode, code2name(keycode)); | |
9ca313aa | 1862 | do_key_event(vs, down, keycode, sym); |
40066175 | 1863 | } |
bdbd7676 FB |
1864 | } |
1865 | ||
24236869 | 1866 | static void framebuffer_update_request(VncState *vs, int incremental, |
bea60dd7 | 1867 | int x, int y, int w, int h) |
24236869 | 1868 | { |
24236869 | 1869 | vs->need_update = 1; |
bea60dd7 PL |
1870 | |
1871 | if (incremental) { | |
1872 | return; | |
24236869 | 1873 | } |
bea60dd7 | 1874 | |
07535a89 | 1875 | vs->force_update = 1; |
f7b3d68c | 1876 | vnc_set_area_dirty(vs->dirty, vs->vd, x, y, w, h); |
24236869 FB |
1877 | } |
1878 | ||
9ca313aa AL |
1879 | static void send_ext_key_event_ack(VncState *vs) |
1880 | { | |
bd023f95 | 1881 | vnc_lock_output(vs); |
46a183da | 1882 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
9ca313aa AL |
1883 | vnc_write_u8(vs, 0); |
1884 | vnc_write_u16(vs, 1); | |
d39fa6d8 | 1885 | vnc_framebuffer_update(vs, 0, 0, |
bea60dd7 PL |
1886 | pixman_image_get_width(vs->vd->server), |
1887 | pixman_image_get_height(vs->vd->server), | |
29fa4ed9 | 1888 | VNC_ENCODING_EXT_KEY_EVENT); |
bd023f95 | 1889 | vnc_unlock_output(vs); |
9ca313aa AL |
1890 | vnc_flush(vs); |
1891 | } | |
1892 | ||
429a8ed3 | 1893 | static void send_ext_audio_ack(VncState *vs) |
1894 | { | |
bd023f95 | 1895 | vnc_lock_output(vs); |
46a183da | 1896 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
429a8ed3 | 1897 | vnc_write_u8(vs, 0); |
1898 | vnc_write_u16(vs, 1); | |
d39fa6d8 | 1899 | vnc_framebuffer_update(vs, 0, 0, |
bea60dd7 PL |
1900 | pixman_image_get_width(vs->vd->server), |
1901 | pixman_image_get_height(vs->vd->server), | |
29fa4ed9 | 1902 | VNC_ENCODING_AUDIO); |
bd023f95 | 1903 | vnc_unlock_output(vs); |
429a8ed3 | 1904 | vnc_flush(vs); |
1905 | } | |
1906 | ||
24236869 FB |
1907 | static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) |
1908 | { | |
1909 | int i; | |
29fa4ed9 | 1910 | unsigned int enc = 0; |
24236869 | 1911 | |
29fa4ed9 | 1912 | vs->features = 0; |
a9f20d31 | 1913 | vs->vnc_encoding = 0; |
d1af0e05 CC |
1914 | vs->tight.compression = 9; |
1915 | vs->tight.quality = -1; /* Lossless by default */ | |
564c337e | 1916 | vs->absolute = -1; |
24236869 | 1917 | |
8a0f0d0c CC |
1918 | /* |
1919 | * Start from the end because the encodings are sent in order of preference. | |
e5bed759 | 1920 | * This way the preferred encoding (first encoding defined in the array) |
8a0f0d0c CC |
1921 | * will be set at the end of the loop. |
1922 | */ | |
24236869 | 1923 | for (i = n_encodings - 1; i >= 0; i--) { |
29fa4ed9 AL |
1924 | enc = encodings[i]; |
1925 | switch (enc) { | |
1926 | case VNC_ENCODING_RAW: | |
a9f20d31 | 1927 | vs->vnc_encoding = enc; |
29fa4ed9 AL |
1928 | break; |
1929 | case VNC_ENCODING_COPYRECT: | |
753b4053 | 1930 | vs->features |= VNC_FEATURE_COPYRECT_MASK; |
29fa4ed9 AL |
1931 | break; |
1932 | case VNC_ENCODING_HEXTILE: | |
1933 | vs->features |= VNC_FEATURE_HEXTILE_MASK; | |
a9f20d31 | 1934 | vs->vnc_encoding = enc; |
29fa4ed9 | 1935 | break; |
380282b0 CC |
1936 | case VNC_ENCODING_TIGHT: |
1937 | vs->features |= VNC_FEATURE_TIGHT_MASK; | |
1938 | vs->vnc_encoding = enc; | |
1939 | break; | |
fe3e7f2d | 1940 | #ifdef CONFIG_VNC_PNG |
efe556ad CC |
1941 | case VNC_ENCODING_TIGHT_PNG: |
1942 | vs->features |= VNC_FEATURE_TIGHT_PNG_MASK; | |
1943 | vs->vnc_encoding = enc; | |
1944 | break; | |
fe3e7f2d | 1945 | #endif |
059cef40 AL |
1946 | case VNC_ENCODING_ZLIB: |
1947 | vs->features |= VNC_FEATURE_ZLIB_MASK; | |
a9f20d31 | 1948 | vs->vnc_encoding = enc; |
059cef40 | 1949 | break; |
148954fa CC |
1950 | case VNC_ENCODING_ZRLE: |
1951 | vs->features |= VNC_FEATURE_ZRLE_MASK; | |
1952 | vs->vnc_encoding = enc; | |
1953 | break; | |
1954 | case VNC_ENCODING_ZYWRLE: | |
1955 | vs->features |= VNC_FEATURE_ZYWRLE_MASK; | |
1956 | vs->vnc_encoding = enc; | |
1957 | break; | |
29fa4ed9 AL |
1958 | case VNC_ENCODING_DESKTOPRESIZE: |
1959 | vs->features |= VNC_FEATURE_RESIZE_MASK; | |
1960 | break; | |
1961 | case VNC_ENCODING_POINTER_TYPE_CHANGE: | |
1962 | vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK; | |
1963 | break; | |
d467b679 GH |
1964 | case VNC_ENCODING_RICH_CURSOR: |
1965 | vs->features |= VNC_FEATURE_RICH_CURSOR_MASK; | |
91ec41dc FZ |
1966 | if (vs->vd->cursor) { |
1967 | vnc_cursor_define(vs); | |
1968 | } | |
d467b679 | 1969 | break; |
29fa4ed9 | 1970 | case VNC_ENCODING_EXT_KEY_EVENT: |
9ca313aa AL |
1971 | send_ext_key_event_ack(vs); |
1972 | break; | |
29fa4ed9 | 1973 | case VNC_ENCODING_AUDIO: |
429a8ed3 | 1974 | send_ext_audio_ack(vs); |
1975 | break; | |
29fa4ed9 AL |
1976 | case VNC_ENCODING_WMVi: |
1977 | vs->features |= VNC_FEATURE_WMVI_MASK; | |
ca4cca4d | 1978 | break; |
ab99e5c1 LL |
1979 | case VNC_ENCODING_LED_STATE: |
1980 | vs->features |= VNC_FEATURE_LED_STATE_MASK; | |
1981 | break; | |
fb437313 | 1982 | case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9: |
d1af0e05 | 1983 | vs->tight.compression = (enc & 0x0F); |
fb437313 AL |
1984 | break; |
1985 | case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9: | |
b31f519e CC |
1986 | if (vs->vd->lossy) { |
1987 | vs->tight.quality = (enc & 0x0F); | |
1988 | } | |
fb437313 | 1989 | break; |
29fa4ed9 AL |
1990 | default: |
1991 | VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc); | |
1992 | break; | |
1993 | } | |
24236869 | 1994 | } |
6356e472 | 1995 | vnc_desktop_resize(vs); |
9e8dd451 | 1996 | check_pointer_type_change(&vs->mouse_mode_notifier, NULL); |
ab99e5c1 | 1997 | vnc_led_state_change(vs); |
24236869 FB |
1998 | } |
1999 | ||
6cec5487 AL |
2000 | static void set_pixel_conversion(VncState *vs) |
2001 | { | |
9f64916d GH |
2002 | pixman_format_code_t fmt = qemu_pixman_get_format(&vs->client_pf); |
2003 | ||
2004 | if (fmt == VNC_SERVER_FB_FORMAT) { | |
6cec5487 | 2005 | vs->write_pixels = vnc_write_pixels_copy; |
70a4568f | 2006 | vnc_hextile_set_pixel_conversion(vs, 0); |
6cec5487 AL |
2007 | } else { |
2008 | vs->write_pixels = vnc_write_pixels_generic; | |
70a4568f | 2009 | vnc_hextile_set_pixel_conversion(vs, 1); |
6cec5487 AL |
2010 | } |
2011 | } | |
2012 | ||
0c426e45 AG |
2013 | static void send_color_map(VncState *vs) |
2014 | { | |
2015 | int i; | |
2016 | ||
2017 | vnc_write_u8(vs, VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES); | |
2018 | vnc_write_u8(vs, 0); /* padding */ | |
2019 | vnc_write_u16(vs, 0); /* first color */ | |
2020 | vnc_write_u16(vs, 256); /* # of colors */ | |
2021 | ||
2022 | for (i = 0; i < 256; i++) { | |
2023 | PixelFormat *pf = &vs->client_pf; | |
2024 | ||
2025 | vnc_write_u16(vs, (((i >> pf->rshift) & pf->rmax) << (16 - pf->rbits))); | |
2026 | vnc_write_u16(vs, (((i >> pf->gshift) & pf->gmax) << (16 - pf->gbits))); | |
2027 | vnc_write_u16(vs, (((i >> pf->bshift) & pf->bmax) << (16 - pf->bbits))); | |
2028 | } | |
2029 | } | |
2030 | ||
ec9fb41a | 2031 | static void set_pixel_format(VncState *vs, int bits_per_pixel, |
28a76be8 AL |
2032 | int big_endian_flag, int true_color_flag, |
2033 | int red_max, int green_max, int blue_max, | |
2034 | int red_shift, int green_shift, int blue_shift) | |
24236869 | 2035 | { |
3512779a | 2036 | if (!true_color_flag) { |
0c426e45 AG |
2037 | /* Expose a reasonable default 256 color map */ |
2038 | bits_per_pixel = 8; | |
0c426e45 AG |
2039 | red_max = 7; |
2040 | green_max = 7; | |
2041 | blue_max = 3; | |
2042 | red_shift = 0; | |
2043 | green_shift = 3; | |
2044 | blue_shift = 6; | |
3512779a | 2045 | } |
24236869 | 2046 | |
e6908bfe PM |
2047 | switch (bits_per_pixel) { |
2048 | case 8: | |
2049 | case 16: | |
2050 | case 32: | |
2051 | break; | |
2052 | default: | |
2053 | vnc_client_error(vs); | |
2054 | return; | |
2055 | } | |
2056 | ||
4c65fed8 | 2057 | vs->client_pf.rmax = red_max ? red_max : 0xFF; |
9f64916d GH |
2058 | vs->client_pf.rbits = hweight_long(red_max); |
2059 | vs->client_pf.rshift = red_shift; | |
2060 | vs->client_pf.rmask = red_max << red_shift; | |
4c65fed8 | 2061 | vs->client_pf.gmax = green_max ? green_max : 0xFF; |
9f64916d GH |
2062 | vs->client_pf.gbits = hweight_long(green_max); |
2063 | vs->client_pf.gshift = green_shift; | |
2064 | vs->client_pf.gmask = green_max << green_shift; | |
4c65fed8 | 2065 | vs->client_pf.bmax = blue_max ? blue_max : 0xFF; |
9f64916d GH |
2066 | vs->client_pf.bbits = hweight_long(blue_max); |
2067 | vs->client_pf.bshift = blue_shift; | |
2068 | vs->client_pf.bmask = blue_max << blue_shift; | |
2069 | vs->client_pf.bits_per_pixel = bits_per_pixel; | |
2070 | vs->client_pf.bytes_per_pixel = bits_per_pixel / 8; | |
2071 | vs->client_pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel; | |
2072 | vs->client_be = big_endian_flag; | |
6cec5487 | 2073 | |
0c426e45 AG |
2074 | if (!true_color_flag) { |
2075 | send_color_map(vs); | |
2076 | } | |
2077 | ||
6cec5487 | 2078 | set_pixel_conversion(vs); |
24236869 | 2079 | |
1d0d59fe GH |
2080 | graphic_hw_invalidate(vs->vd->dcl.con); |
2081 | graphic_hw_update(vs->vd->dcl.con); | |
24236869 FB |
2082 | } |
2083 | ||
ca4cca4d AL |
2084 | static void pixel_format_message (VncState *vs) { |
2085 | char pad[3] = { 0, 0, 0 }; | |
2086 | ||
9f64916d GH |
2087 | vs->client_pf = qemu_default_pixelformat(32); |
2088 | ||
2089 | vnc_write_u8(vs, vs->client_pf.bits_per_pixel); /* bits-per-pixel */ | |
2090 | vnc_write_u8(vs, vs->client_pf.depth); /* depth */ | |
ca4cca4d | 2091 | |
e2542fe2 | 2092 | #ifdef HOST_WORDS_BIGENDIAN |
ca4cca4d AL |
2093 | vnc_write_u8(vs, 1); /* big-endian-flag */ |
2094 | #else | |
2095 | vnc_write_u8(vs, 0); /* big-endian-flag */ | |
2096 | #endif | |
2097 | vnc_write_u8(vs, 1); /* true-color-flag */ | |
9f64916d GH |
2098 | vnc_write_u16(vs, vs->client_pf.rmax); /* red-max */ |
2099 | vnc_write_u16(vs, vs->client_pf.gmax); /* green-max */ | |
2100 | vnc_write_u16(vs, vs->client_pf.bmax); /* blue-max */ | |
2101 | vnc_write_u8(vs, vs->client_pf.rshift); /* red-shift */ | |
2102 | vnc_write_u8(vs, vs->client_pf.gshift); /* green-shift */ | |
2103 | vnc_write_u8(vs, vs->client_pf.bshift); /* blue-shift */ | |
2104 | vnc_write(vs, pad, 3); /* padding */ | |
70a4568f CC |
2105 | |
2106 | vnc_hextile_set_pixel_conversion(vs, 0); | |
ca4cca4d | 2107 | vs->write_pixels = vnc_write_pixels_copy; |
ca4cca4d AL |
2108 | } |
2109 | ||
753b4053 | 2110 | static void vnc_colordepth(VncState *vs) |
7eac3a87 | 2111 | { |
753b4053 | 2112 | if (vnc_has_feature(vs, VNC_FEATURE_WMVI)) { |
ca4cca4d | 2113 | /* Sending a WMVi message to notify the client*/ |
bd023f95 | 2114 | vnc_lock_output(vs); |
46a183da | 2115 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
ca4cca4d AL |
2116 | vnc_write_u8(vs, 0); |
2117 | vnc_write_u16(vs, 1); /* number of rects */ | |
d39fa6d8 | 2118 | vnc_framebuffer_update(vs, 0, 0, |
bea60dd7 PL |
2119 | pixman_image_get_width(vs->vd->server), |
2120 | pixman_image_get_height(vs->vd->server), | |
d39fa6d8 | 2121 | VNC_ENCODING_WMVi); |
ca4cca4d | 2122 | pixel_format_message(vs); |
bd023f95 | 2123 | vnc_unlock_output(vs); |
ca4cca4d | 2124 | vnc_flush(vs); |
7eac3a87 | 2125 | } else { |
6cec5487 | 2126 | set_pixel_conversion(vs); |
7eac3a87 AL |
2127 | } |
2128 | } | |
2129 | ||
60fe76f3 | 2130 | static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len) |
24236869 FB |
2131 | { |
2132 | int i; | |
2133 | uint16_t limit; | |
2430ffe4 SS |
2134 | VncDisplay *vd = vs->vd; |
2135 | ||
2136 | if (data[0] > 3) { | |
0f7b2864 | 2137 | update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE); |
2430ffe4 | 2138 | } |
24236869 FB |
2139 | |
2140 | switch (data[0]) { | |
46a183da | 2141 | case VNC_MSG_CLIENT_SET_PIXEL_FORMAT: |
28a76be8 AL |
2142 | if (len == 1) |
2143 | return 20; | |
2144 | ||
ec9fb41a | 2145 | set_pixel_format(vs, read_u8(data, 4), |
28a76be8 AL |
2146 | read_u8(data, 6), read_u8(data, 7), |
2147 | read_u16(data, 8), read_u16(data, 10), | |
2148 | read_u16(data, 12), read_u8(data, 14), | |
2149 | read_u8(data, 15), read_u8(data, 16)); | |
2150 | break; | |
46a183da | 2151 | case VNC_MSG_CLIENT_SET_ENCODINGS: |
28a76be8 AL |
2152 | if (len == 1) |
2153 | return 4; | |
24236869 | 2154 | |
28a76be8 | 2155 | if (len == 4) { |
69dd5c9f AL |
2156 | limit = read_u16(data, 2); |
2157 | if (limit > 0) | |
2158 | return 4 + (limit * 4); | |
2159 | } else | |
2160 | limit = read_u16(data, 2); | |
24236869 | 2161 | |
28a76be8 AL |
2162 | for (i = 0; i < limit; i++) { |
2163 | int32_t val = read_s32(data, 4 + (i * 4)); | |
2164 | memcpy(data + 4 + (i * 4), &val, sizeof(val)); | |
2165 | } | |
24236869 | 2166 | |
28a76be8 AL |
2167 | set_encodings(vs, (int32_t *)(data + 4), limit); |
2168 | break; | |
46a183da | 2169 | case VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST: |
28a76be8 AL |
2170 | if (len == 1) |
2171 | return 10; | |
24236869 | 2172 | |
28a76be8 AL |
2173 | framebuffer_update_request(vs, |
2174 | read_u8(data, 1), read_u16(data, 2), read_u16(data, 4), | |
2175 | read_u16(data, 6), read_u16(data, 8)); | |
2176 | break; | |
46a183da | 2177 | case VNC_MSG_CLIENT_KEY_EVENT: |
28a76be8 AL |
2178 | if (len == 1) |
2179 | return 8; | |
24236869 | 2180 | |
28a76be8 AL |
2181 | key_event(vs, read_u8(data, 1), read_u32(data, 4)); |
2182 | break; | |
46a183da | 2183 | case VNC_MSG_CLIENT_POINTER_EVENT: |
28a76be8 AL |
2184 | if (len == 1) |
2185 | return 6; | |
24236869 | 2186 | |
28a76be8 AL |
2187 | pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4)); |
2188 | break; | |
46a183da | 2189 | case VNC_MSG_CLIENT_CUT_TEXT: |
f9a70e79 | 2190 | if (len == 1) { |
28a76be8 | 2191 | return 8; |
f9a70e79 | 2192 | } |
28a76be8 | 2193 | if (len == 8) { |
baa7666c | 2194 | uint32_t dlen = read_u32(data, 4); |
f9a70e79 PL |
2195 | if (dlen > (1 << 20)) { |
2196 | error_report("vnc: client_cut_text msg payload has %u bytes" | |
2197 | " which exceeds our limit of 1MB.", dlen); | |
2198 | vnc_client_error(vs); | |
2199 | break; | |
2200 | } | |
2201 | if (dlen > 0) { | |
baa7666c | 2202 | return 8 + dlen; |
f9a70e79 | 2203 | } |
baa7666c | 2204 | } |
24236869 | 2205 | |
28a76be8 AL |
2206 | client_cut_text(vs, read_u32(data, 4), data + 8); |
2207 | break; | |
46a183da | 2208 | case VNC_MSG_CLIENT_QEMU: |
9ca313aa AL |
2209 | if (len == 1) |
2210 | return 2; | |
2211 | ||
2212 | switch (read_u8(data, 1)) { | |
46a183da | 2213 | case VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT: |
9ca313aa AL |
2214 | if (len == 2) |
2215 | return 12; | |
2216 | ||
2217 | ext_key_event(vs, read_u16(data, 2), | |
2218 | read_u32(data, 4), read_u32(data, 8)); | |
2219 | break; | |
46a183da | 2220 | case VNC_MSG_CLIENT_QEMU_AUDIO: |
429a8ed3 | 2221 | if (len == 2) |
2222 | return 4; | |
2223 | ||
2224 | switch (read_u16 (data, 2)) { | |
46a183da | 2225 | case VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE: |
429a8ed3 | 2226 | audio_add(vs); |
2227 | break; | |
46a183da | 2228 | case VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE: |
429a8ed3 | 2229 | audio_del(vs); |
2230 | break; | |
46a183da | 2231 | case VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT: |
429a8ed3 | 2232 | if (len == 4) |
2233 | return 10; | |
2234 | switch (read_u8(data, 4)) { | |
2235 | case 0: vs->as.fmt = AUD_FMT_U8; break; | |
2236 | case 1: vs->as.fmt = AUD_FMT_S8; break; | |
2237 | case 2: vs->as.fmt = AUD_FMT_U16; break; | |
2238 | case 3: vs->as.fmt = AUD_FMT_S16; break; | |
2239 | case 4: vs->as.fmt = AUD_FMT_U32; break; | |
2240 | case 5: vs->as.fmt = AUD_FMT_S32; break; | |
2241 | default: | |
153130cd | 2242 | VNC_DEBUG("Invalid audio format %d\n", read_u8(data, 4)); |
429a8ed3 | 2243 | vnc_client_error(vs); |
2244 | break; | |
2245 | } | |
2246 | vs->as.nchannels = read_u8(data, 5); | |
2247 | if (vs->as.nchannels != 1 && vs->as.nchannels != 2) { | |
153130cd DB |
2248 | VNC_DEBUG("Invalid audio channel coount %d\n", |
2249 | read_u8(data, 5)); | |
429a8ed3 | 2250 | vnc_client_error(vs); |
2251 | break; | |
2252 | } | |
2253 | vs->as.freq = read_u32(data, 6); | |
2254 | break; | |
2255 | default: | |
153130cd | 2256 | VNC_DEBUG("Invalid audio message %d\n", read_u8(data, 4)); |
429a8ed3 | 2257 | vnc_client_error(vs); |
2258 | break; | |
2259 | } | |
2260 | break; | |
2261 | ||
9ca313aa | 2262 | default: |
153130cd | 2263 | VNC_DEBUG("Msg: %d\n", read_u16(data, 0)); |
9ca313aa AL |
2264 | vnc_client_error(vs); |
2265 | break; | |
2266 | } | |
2267 | break; | |
24236869 | 2268 | default: |
153130cd | 2269 | VNC_DEBUG("Msg: %d\n", data[0]); |
28a76be8 AL |
2270 | vnc_client_error(vs); |
2271 | break; | |
24236869 | 2272 | } |
5fafdf24 | 2273 | |
24236869 FB |
2274 | vnc_read_when(vs, protocol_client_msg, 1); |
2275 | return 0; | |
2276 | } | |
2277 | ||
60fe76f3 | 2278 | static int protocol_client_init(VncState *vs, uint8_t *data, size_t len) |
24236869 | 2279 | { |
c35734b2 | 2280 | char buf[1024]; |
8cf36489 | 2281 | VncShareMode mode; |
c35734b2 | 2282 | int size; |
24236869 | 2283 | |
8cf36489 GH |
2284 | mode = data[0] ? VNC_SHARE_MODE_SHARED : VNC_SHARE_MODE_EXCLUSIVE; |
2285 | switch (vs->vd->share_policy) { | |
2286 | case VNC_SHARE_POLICY_IGNORE: | |
2287 | /* | |
2288 | * Ignore the shared flag. Nothing to do here. | |
2289 | * | |
2290 | * Doesn't conform to the rfb spec but is traditional qemu | |
2291 | * behavior, thus left here as option for compatibility | |
2292 | * reasons. | |
2293 | */ | |
2294 | break; | |
2295 | case VNC_SHARE_POLICY_ALLOW_EXCLUSIVE: | |
2296 | /* | |
2297 | * Policy: Allow clients ask for exclusive access. | |
2298 | * | |
2299 | * Implementation: When a client asks for exclusive access, | |
2300 | * disconnect all others. Shared connects are allowed as long | |
2301 | * as no exclusive connection exists. | |
2302 | * | |
2303 | * This is how the rfb spec suggests to handle the shared flag. | |
2304 | */ | |
2305 | if (mode == VNC_SHARE_MODE_EXCLUSIVE) { | |
2306 | VncState *client; | |
2307 | QTAILQ_FOREACH(client, &vs->vd->clients, next) { | |
2308 | if (vs == client) { | |
2309 | continue; | |
2310 | } | |
2311 | if (client->share_mode != VNC_SHARE_MODE_EXCLUSIVE && | |
2312 | client->share_mode != VNC_SHARE_MODE_SHARED) { | |
2313 | continue; | |
2314 | } | |
2315 | vnc_disconnect_start(client); | |
2316 | } | |
2317 | } | |
2318 | if (mode == VNC_SHARE_MODE_SHARED) { | |
2319 | if (vs->vd->num_exclusive > 0) { | |
2320 | vnc_disconnect_start(vs); | |
2321 | return 0; | |
2322 | } | |
2323 | } | |
2324 | break; | |
2325 | case VNC_SHARE_POLICY_FORCE_SHARED: | |
2326 | /* | |
2327 | * Policy: Shared connects only. | |
2328 | * Implementation: Disallow clients asking for exclusive access. | |
2329 | * | |
2330 | * Useful for shared desktop sessions where you don't want | |
2331 | * someone forgetting to say -shared when running the vnc | |
2332 | * client disconnect everybody else. | |
2333 | */ | |
2334 | if (mode == VNC_SHARE_MODE_EXCLUSIVE) { | |
2335 | vnc_disconnect_start(vs); | |
2336 | return 0; | |
2337 | } | |
2338 | break; | |
2339 | } | |
2340 | vnc_set_share_mode(vs, mode); | |
2341 | ||
e5f34cdd GH |
2342 | if (vs->vd->num_shared > vs->vd->connections_limit) { |
2343 | vnc_disconnect_start(vs); | |
2344 | return 0; | |
2345 | } | |
2346 | ||
bea60dd7 PL |
2347 | vs->client_width = pixman_image_get_width(vs->vd->server); |
2348 | vs->client_height = pixman_image_get_height(vs->vd->server); | |
5862d195 GH |
2349 | vnc_write_u16(vs, vs->client_width); |
2350 | vnc_write_u16(vs, vs->client_height); | |
24236869 | 2351 | |
ca4cca4d | 2352 | pixel_format_message(vs); |
24236869 | 2353 | |
97efe4f9 | 2354 | if (qemu_name) { |
c35734b2 | 2355 | size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name); |
97efe4f9 TH |
2356 | if (size > sizeof(buf)) { |
2357 | size = sizeof(buf); | |
2358 | } | |
2359 | } else { | |
c35734b2 | 2360 | size = snprintf(buf, sizeof(buf), "QEMU"); |
97efe4f9 | 2361 | } |
c35734b2 TS |
2362 | |
2363 | vnc_write_u32(vs, size); | |
2364 | vnc_write(vs, buf, size); | |
24236869 FB |
2365 | vnc_flush(vs); |
2366 | ||
4a80dba3 | 2367 | vnc_client_cache_auth(vs); |
fb6ba0d5 | 2368 | vnc_qmp_event(vs, QAPI_EVENT_VNC_INITIALIZED); |
4a80dba3 | 2369 | |
24236869 FB |
2370 | vnc_read_when(vs, protocol_client_msg, 1); |
2371 | ||
2372 | return 0; | |
2373 | } | |
2374 | ||
5fb6c7a8 AL |
2375 | void start_client_init(VncState *vs) |
2376 | { | |
2377 | vnc_read_when(vs, protocol_client_init, 1); | |
2378 | } | |
2379 | ||
70848515 TS |
2380 | static void make_challenge(VncState *vs) |
2381 | { | |
2382 | int i; | |
2383 | ||
2384 | srand(time(NULL)+getpid()+getpid()*987654+rand()); | |
2385 | ||
2386 | for (i = 0 ; i < sizeof(vs->challenge) ; i++) | |
2387 | vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0)); | |
2388 | } | |
2389 | ||
60fe76f3 | 2390 | static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len) |
70848515 | 2391 | { |
60fe76f3 | 2392 | unsigned char response[VNC_AUTH_CHALLENGE_SIZE]; |
800567a6 | 2393 | size_t i, pwlen; |
60fe76f3 | 2394 | unsigned char key[8]; |
3c9405a0 | 2395 | time_t now = time(NULL); |
60928458 | 2396 | QCryptoCipher *cipher = NULL; |
800567a6 | 2397 | Error *err = NULL; |
70848515 | 2398 | |
1cd20f8b | 2399 | if (!vs->vd->password) { |
28a76be8 | 2400 | VNC_DEBUG("No password configured on server"); |
6bffdf0f | 2401 | goto reject; |
70848515 | 2402 | } |
3c9405a0 GH |
2403 | if (vs->vd->expires < now) { |
2404 | VNC_DEBUG("Password is expired"); | |
2405 | goto reject; | |
2406 | } | |
70848515 TS |
2407 | |
2408 | memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE); | |
2409 | ||
2410 | /* Calculate the expected challenge response */ | |
753b4053 | 2411 | pwlen = strlen(vs->vd->password); |
70848515 | 2412 | for (i=0; i<sizeof(key); i++) |
753b4053 | 2413 | key[i] = i<pwlen ? vs->vd->password[i] : 0; |
800567a6 DB |
2414 | |
2415 | cipher = qcrypto_cipher_new( | |
2416 | QCRYPTO_CIPHER_ALG_DES_RFB, | |
2417 | QCRYPTO_CIPHER_MODE_ECB, | |
2418 | key, G_N_ELEMENTS(key), | |
2419 | &err); | |
2420 | if (!cipher) { | |
2421 | VNC_DEBUG("Cannot initialize cipher %s", | |
2422 | error_get_pretty(err)); | |
2423 | error_free(err); | |
2424 | goto reject; | |
2425 | } | |
2426 | ||
a1695137 | 2427 | if (qcrypto_cipher_encrypt(cipher, |
800567a6 DB |
2428 | vs->challenge, |
2429 | response, | |
2430 | VNC_AUTH_CHALLENGE_SIZE, | |
2431 | &err) < 0) { | |
2432 | VNC_DEBUG("Cannot encrypt challenge %s", | |
2433 | error_get_pretty(err)); | |
2434 | error_free(err); | |
2435 | goto reject; | |
2436 | } | |
70848515 TS |
2437 | |
2438 | /* Compare expected vs actual challenge response */ | |
2439 | if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) { | |
e5bed759 | 2440 | VNC_DEBUG("Client challenge response did not match\n"); |
6bffdf0f | 2441 | goto reject; |
70848515 | 2442 | } else { |
28a76be8 AL |
2443 | VNC_DEBUG("Accepting VNC challenge response\n"); |
2444 | vnc_write_u32(vs, 0); /* Accept auth */ | |
2445 | vnc_flush(vs); | |
70848515 | 2446 | |
5fb6c7a8 | 2447 | start_client_init(vs); |
70848515 | 2448 | } |
60928458 GA |
2449 | |
2450 | qcrypto_cipher_free(cipher); | |
70848515 | 2451 | return 0; |
6bffdf0f GH |
2452 | |
2453 | reject: | |
2454 | vnc_write_u32(vs, 1); /* Reject auth */ | |
2455 | if (vs->minor >= 8) { | |
2456 | static const char err[] = "Authentication failed"; | |
2457 | vnc_write_u32(vs, sizeof(err)); | |
2458 | vnc_write(vs, err, sizeof(err)); | |
2459 | } | |
2460 | vnc_flush(vs); | |
2461 | vnc_client_error(vs); | |
60928458 | 2462 | qcrypto_cipher_free(cipher); |
6bffdf0f | 2463 | return 0; |
70848515 TS |
2464 | } |
2465 | ||
5fb6c7a8 | 2466 | void start_auth_vnc(VncState *vs) |
70848515 TS |
2467 | { |
2468 | make_challenge(vs); | |
2469 | /* Send client a 'random' challenge */ | |
2470 | vnc_write(vs, vs->challenge, sizeof(vs->challenge)); | |
2471 | vnc_flush(vs); | |
2472 | ||
2473 | vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge)); | |
469b15c6 TS |
2474 | } |
2475 | ||
2476 | ||
60fe76f3 | 2477 | static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len) |
70848515 TS |
2478 | { |
2479 | /* We only advertise 1 auth scheme at a time, so client | |
2480 | * must pick the one we sent. Verify this */ | |
7e7e2ebc | 2481 | if (data[0] != vs->auth) { /* Reject auth */ |
1263b7d6 | 2482 | VNC_DEBUG("Reject auth %d because it didn't match advertized\n", (int)data[0]); |
70848515 TS |
2483 | vnc_write_u32(vs, 1); |
2484 | if (vs->minor >= 8) { | |
2485 | static const char err[] = "Authentication failed"; | |
2486 | vnc_write_u32(vs, sizeof(err)); | |
2487 | vnc_write(vs, err, sizeof(err)); | |
2488 | } | |
2489 | vnc_client_error(vs); | |
2490 | } else { /* Accept requested auth */ | |
2491 | VNC_DEBUG("Client requested auth %d\n", (int)data[0]); | |
7e7e2ebc | 2492 | switch (vs->auth) { |
70848515 TS |
2493 | case VNC_AUTH_NONE: |
2494 | VNC_DEBUG("Accept auth none\n"); | |
a26c97ad AZ |
2495 | if (vs->minor >= 8) { |
2496 | vnc_write_u32(vs, 0); /* Accept auth completion */ | |
2497 | vnc_flush(vs); | |
2498 | } | |
5fb6c7a8 | 2499 | start_client_init(vs); |
70848515 TS |
2500 | break; |
2501 | ||
2502 | case VNC_AUTH_VNC: | |
2503 | VNC_DEBUG("Start VNC auth\n"); | |
5fb6c7a8 AL |
2504 | start_auth_vnc(vs); |
2505 | break; | |
70848515 | 2506 | |
8d5d2d4c | 2507 | case VNC_AUTH_VENCRYPT: |
3a93113a | 2508 | VNC_DEBUG("Accept VeNCrypt auth\n"); |
5fb6c7a8 AL |
2509 | start_auth_vencrypt(vs); |
2510 | break; | |
8d5d2d4c | 2511 | |
2f9606b3 AL |
2512 | #ifdef CONFIG_VNC_SASL |
2513 | case VNC_AUTH_SASL: | |
2514 | VNC_DEBUG("Accept SASL auth\n"); | |
2515 | start_auth_sasl(vs); | |
2516 | break; | |
2517 | #endif /* CONFIG_VNC_SASL */ | |
2518 | ||
70848515 | 2519 | default: /* Should not be possible, but just in case */ |
7e7e2ebc | 2520 | VNC_DEBUG("Reject auth %d server code bug\n", vs->auth); |
70848515 TS |
2521 | vnc_write_u8(vs, 1); |
2522 | if (vs->minor >= 8) { | |
2523 | static const char err[] = "Authentication failed"; | |
2524 | vnc_write_u32(vs, sizeof(err)); | |
2525 | vnc_write(vs, err, sizeof(err)); | |
2526 | } | |
2527 | vnc_client_error(vs); | |
2528 | } | |
2529 | } | |
2530 | return 0; | |
2531 | } | |
2532 | ||
60fe76f3 | 2533 | static int protocol_version(VncState *vs, uint8_t *version, size_t len) |
24236869 FB |
2534 | { |
2535 | char local[13]; | |
24236869 FB |
2536 | |
2537 | memcpy(local, version, 12); | |
2538 | local[12] = 0; | |
2539 | ||
70848515 | 2540 | if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) { |
28a76be8 AL |
2541 | VNC_DEBUG("Malformed protocol version %s\n", local); |
2542 | vnc_client_error(vs); | |
2543 | return 0; | |
24236869 | 2544 | } |
70848515 TS |
2545 | VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor); |
2546 | if (vs->major != 3 || | |
28a76be8 AL |
2547 | (vs->minor != 3 && |
2548 | vs->minor != 4 && | |
2549 | vs->minor != 5 && | |
2550 | vs->minor != 7 && | |
2551 | vs->minor != 8)) { | |
2552 | VNC_DEBUG("Unsupported client version\n"); | |
2553 | vnc_write_u32(vs, VNC_AUTH_INVALID); | |
2554 | vnc_flush(vs); | |
2555 | vnc_client_error(vs); | |
2556 | return 0; | |
70848515 | 2557 | } |
b0566f4f | 2558 | /* Some broken clients report v3.4 or v3.5, which spec requires to be treated |
70848515 TS |
2559 | * as equivalent to v3.3 by servers |
2560 | */ | |
b0566f4f | 2561 | if (vs->minor == 4 || vs->minor == 5) |
28a76be8 | 2562 | vs->minor = 3; |
70848515 TS |
2563 | |
2564 | if (vs->minor == 3) { | |
7e7e2ebc | 2565 | if (vs->auth == VNC_AUTH_NONE) { |
70848515 | 2566 | VNC_DEBUG("Tell client auth none\n"); |
7e7e2ebc | 2567 | vnc_write_u32(vs, vs->auth); |
70848515 | 2568 | vnc_flush(vs); |
28a76be8 | 2569 | start_client_init(vs); |
7e7e2ebc | 2570 | } else if (vs->auth == VNC_AUTH_VNC) { |
70848515 | 2571 | VNC_DEBUG("Tell client VNC auth\n"); |
7e7e2ebc | 2572 | vnc_write_u32(vs, vs->auth); |
70848515 TS |
2573 | vnc_flush(vs); |
2574 | start_auth_vnc(vs); | |
2575 | } else { | |
7e7e2ebc | 2576 | VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->auth); |
70848515 TS |
2577 | vnc_write_u32(vs, VNC_AUTH_INVALID); |
2578 | vnc_flush(vs); | |
2579 | vnc_client_error(vs); | |
2580 | } | |
2581 | } else { | |
7e7e2ebc | 2582 | VNC_DEBUG("Telling client we support auth %d\n", vs->auth); |
28a76be8 | 2583 | vnc_write_u8(vs, 1); /* num auth */ |
7e7e2ebc | 2584 | vnc_write_u8(vs, vs->auth); |
28a76be8 AL |
2585 | vnc_read_when(vs, protocol_client_auth, 1); |
2586 | vnc_flush(vs); | |
70848515 | 2587 | } |
24236869 FB |
2588 | |
2589 | return 0; | |
2590 | } | |
2591 | ||
999342a0 CC |
2592 | static VncRectStat *vnc_stat_rect(VncDisplay *vd, int x, int y) |
2593 | { | |
2594 | struct VncSurface *vs = &vd->guest; | |
2595 | ||
2596 | return &vs->stats[y / VNC_STAT_RECT][x / VNC_STAT_RECT]; | |
2597 | } | |
2598 | ||
7d964c9d CC |
2599 | void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h) |
2600 | { | |
2601 | int i, j; | |
2602 | ||
2603 | w = (x + w) / VNC_STAT_RECT; | |
2604 | h = (y + h) / VNC_STAT_RECT; | |
2605 | x /= VNC_STAT_RECT; | |
2606 | y /= VNC_STAT_RECT; | |
2607 | ||
207f328a CC |
2608 | for (j = y; j <= h; j++) { |
2609 | for (i = x; i <= w; i++) { | |
7d964c9d CC |
2610 | vs->lossy_rect[j][i] = 1; |
2611 | } | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | static int vnc_refresh_lossy_rect(VncDisplay *vd, int x, int y) | |
2616 | { | |
2617 | VncState *vs; | |
2618 | int sty = y / VNC_STAT_RECT; | |
2619 | int stx = x / VNC_STAT_RECT; | |
2620 | int has_dirty = 0; | |
2621 | ||
2622 | y = y / VNC_STAT_RECT * VNC_STAT_RECT; | |
2623 | x = x / VNC_STAT_RECT * VNC_STAT_RECT; | |
2624 | ||
2625 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
bc2429b9 | 2626 | int j; |
7d964c9d CC |
2627 | |
2628 | /* kernel send buffers are full -> refresh later */ | |
2629 | if (vs->output.offset) { | |
2630 | continue; | |
2631 | } | |
2632 | ||
2633 | if (!vs->lossy_rect[sty][stx]) { | |
2634 | continue; | |
2635 | } | |
207f328a | 2636 | |
7d964c9d CC |
2637 | vs->lossy_rect[sty][stx] = 0; |
2638 | for (j = 0; j < VNC_STAT_RECT; ++j) { | |
b4c85ddc PL |
2639 | bitmap_set(vs->dirty[y + j], |
2640 | x / VNC_DIRTY_PIXELS_PER_BIT, | |
2641 | VNC_STAT_RECT / VNC_DIRTY_PIXELS_PER_BIT); | |
7d964c9d CC |
2642 | } |
2643 | has_dirty++; | |
2644 | } | |
207f328a | 2645 | |
7d964c9d CC |
2646 | return has_dirty; |
2647 | } | |
2648 | ||
2649 | static int vnc_update_stats(VncDisplay *vd, struct timeval * tv) | |
999342a0 | 2650 | { |
eebe0b79 GH |
2651 | int width = MIN(pixman_image_get_width(vd->guest.fb), |
2652 | pixman_image_get_width(vd->server)); | |
2653 | int height = MIN(pixman_image_get_height(vd->guest.fb), | |
2654 | pixman_image_get_height(vd->server)); | |
999342a0 CC |
2655 | int x, y; |
2656 | struct timeval res; | |
7d964c9d | 2657 | int has_dirty = 0; |
999342a0 | 2658 | |
9f64916d GH |
2659 | for (y = 0; y < height; y += VNC_STAT_RECT) { |
2660 | for (x = 0; x < width; x += VNC_STAT_RECT) { | |
999342a0 CC |
2661 | VncRectStat *rect = vnc_stat_rect(vd, x, y); |
2662 | ||
2663 | rect->updated = false; | |
2664 | } | |
2665 | } | |
2666 | ||
ad620c29 | 2667 | qemu_timersub(tv, &VNC_REFRESH_STATS, &res); |
999342a0 CC |
2668 | |
2669 | if (timercmp(&vd->guest.last_freq_check, &res, >)) { | |
7d964c9d | 2670 | return has_dirty; |
999342a0 CC |
2671 | } |
2672 | vd->guest.last_freq_check = *tv; | |
2673 | ||
9f64916d GH |
2674 | for (y = 0; y < height; y += VNC_STAT_RECT) { |
2675 | for (x = 0; x < width; x += VNC_STAT_RECT) { | |
999342a0 CC |
2676 | VncRectStat *rect= vnc_stat_rect(vd, x, y); |
2677 | int count = ARRAY_SIZE(rect->times); | |
2678 | struct timeval min, max; | |
2679 | ||
2680 | if (!timerisset(&rect->times[count - 1])) { | |
2681 | continue ; | |
2682 | } | |
2683 | ||
2684 | max = rect->times[(rect->idx + count - 1) % count]; | |
ad620c29 | 2685 | qemu_timersub(tv, &max, &res); |
999342a0 CC |
2686 | |
2687 | if (timercmp(&res, &VNC_REFRESH_LOSSY, >)) { | |
2688 | rect->freq = 0; | |
7d964c9d | 2689 | has_dirty += vnc_refresh_lossy_rect(vd, x, y); |
999342a0 CC |
2690 | memset(rect->times, 0, sizeof (rect->times)); |
2691 | continue ; | |
2692 | } | |
2693 | ||
2694 | min = rect->times[rect->idx]; | |
2695 | max = rect->times[(rect->idx + count - 1) % count]; | |
ad620c29 | 2696 | qemu_timersub(&max, &min, &res); |
999342a0 CC |
2697 | |
2698 | rect->freq = res.tv_sec + res.tv_usec / 1000000.; | |
2699 | rect->freq /= count; | |
2700 | rect->freq = 1. / rect->freq; | |
2701 | } | |
2702 | } | |
7d964c9d | 2703 | return has_dirty; |
999342a0 CC |
2704 | } |
2705 | ||
2706 | double vnc_update_freq(VncState *vs, int x, int y, int w, int h) | |
2707 | { | |
2708 | int i, j; | |
2709 | double total = 0; | |
2710 | int num = 0; | |
2711 | ||
2712 | x = (x / VNC_STAT_RECT) * VNC_STAT_RECT; | |
2713 | y = (y / VNC_STAT_RECT) * VNC_STAT_RECT; | |
2714 | ||
2715 | for (j = y; j <= y + h; j += VNC_STAT_RECT) { | |
2716 | for (i = x; i <= x + w; i += VNC_STAT_RECT) { | |
2717 | total += vnc_stat_rect(vs->vd, i, j)->freq; | |
2718 | num++; | |
2719 | } | |
2720 | } | |
2721 | ||
2722 | if (num) { | |
2723 | return total / num; | |
2724 | } else { | |
2725 | return 0; | |
2726 | } | |
2727 | } | |
2728 | ||
2729 | static void vnc_rect_updated(VncDisplay *vd, int x, int y, struct timeval * tv) | |
2730 | { | |
2731 | VncRectStat *rect; | |
2732 | ||
2733 | rect = vnc_stat_rect(vd, x, y); | |
2734 | if (rect->updated) { | |
2735 | return ; | |
2736 | } | |
2737 | rect->times[rect->idx] = *tv; | |
2738 | rect->idx = (rect->idx + 1) % ARRAY_SIZE(rect->times); | |
2739 | rect->updated = true; | |
2740 | } | |
2741 | ||
1fc62412 SS |
2742 | static int vnc_refresh_server_surface(VncDisplay *vd) |
2743 | { | |
bea60dd7 PL |
2744 | int width = MIN(pixman_image_get_width(vd->guest.fb), |
2745 | pixman_image_get_width(vd->server)); | |
2746 | int height = MIN(pixman_image_get_height(vd->guest.fb), | |
2747 | pixman_image_get_height(vd->server)); | |
eb8934b0 | 2748 | int cmp_bytes, server_stride, line_bytes, guest_ll, guest_stride, y = 0; |
12b316d4 | 2749 | uint8_t *guest_row0 = NULL, *server_row0; |
41b4bef6 | 2750 | VncState *vs; |
1fc62412 | 2751 | int has_dirty = 0; |
9f64916d | 2752 | pixman_image_t *tmpbuf = NULL; |
1fc62412 | 2753 | |
80e0c8c3 | 2754 | struct timeval tv = { 0, 0 }; |
999342a0 | 2755 | |
80e0c8c3 CC |
2756 | if (!vd->non_adaptive) { |
2757 | gettimeofday(&tv, NULL); | |
2758 | has_dirty = vnc_update_stats(vd, &tv); | |
2759 | } | |
999342a0 | 2760 | |
1fc62412 SS |
2761 | /* |
2762 | * Walk through the guest dirty map. | |
2763 | * Check and copy modified bits from guest to server surface. | |
2764 | * Update server dirty map. | |
2765 | */ | |
bea60dd7 | 2766 | server_row0 = (uint8_t *)pixman_image_get_data(vd->server); |
eb8934b0 GH |
2767 | server_stride = guest_stride = guest_ll = |
2768 | pixman_image_get_stride(vd->server); | |
bea60dd7 PL |
2769 | cmp_bytes = MIN(VNC_DIRTY_PIXELS_PER_BIT * VNC_SERVER_FB_BYTES, |
2770 | server_stride); | |
9f64916d GH |
2771 | if (vd->guest.format != VNC_SERVER_FB_FORMAT) { |
2772 | int width = pixman_image_get_width(vd->server); | |
2773 | tmpbuf = qemu_pixman_linebuf_create(VNC_SERVER_FB_FORMAT, width); | |
12b316d4 | 2774 | } else { |
eb8934b0 GH |
2775 | int guest_bpp = |
2776 | PIXMAN_FORMAT_BPP(pixman_image_get_format(vd->guest.fb)); | |
12b316d4 PL |
2777 | guest_row0 = (uint8_t *)pixman_image_get_data(vd->guest.fb); |
2778 | guest_stride = pixman_image_get_stride(vd->guest.fb); | |
eb8934b0 | 2779 | guest_ll = pixman_image_get_width(vd->guest.fb) * ((guest_bpp + 7) / 8); |
12b316d4 | 2780 | } |
eb8934b0 | 2781 | line_bytes = MIN(server_stride, guest_ll); |
12b316d4 | 2782 | |
12b316d4 PL |
2783 | for (;;) { |
2784 | int x; | |
2785 | uint8_t *guest_ptr, *server_ptr; | |
2786 | unsigned long offset = find_next_bit((unsigned long *) &vd->guest.dirty, | |
2787 | height * VNC_DIRTY_BPL(&vd->guest), | |
2788 | y * VNC_DIRTY_BPL(&vd->guest)); | |
2789 | if (offset == height * VNC_DIRTY_BPL(&vd->guest)) { | |
2790 | /* no more dirty bits */ | |
2791 | break; | |
2792 | } | |
2793 | y = offset / VNC_DIRTY_BPL(&vd->guest); | |
2794 | x = offset % VNC_DIRTY_BPL(&vd->guest); | |
1fc62412 | 2795 | |
12b316d4 PL |
2796 | server_ptr = server_row0 + y * server_stride + x * cmp_bytes; |
2797 | ||
2798 | if (vd->guest.format != VNC_SERVER_FB_FORMAT) { | |
2799 | qemu_pixman_linebuf_fill(tmpbuf, vd->guest.fb, width, 0, y); | |
2800 | guest_ptr = (uint8_t *)pixman_image_get_data(tmpbuf); | |
2801 | } else { | |
2802 | guest_ptr = guest_row0 + y * guest_stride; | |
2803 | } | |
2804 | guest_ptr += x * cmp_bytes; | |
2805 | ||
2806 | for (; x < DIV_ROUND_UP(width, VNC_DIRTY_PIXELS_PER_BIT); | |
2807 | x++, guest_ptr += cmp_bytes, server_ptr += cmp_bytes) { | |
bea60dd7 | 2808 | int _cmp_bytes = cmp_bytes; |
12b316d4 PL |
2809 | if (!test_and_clear_bit(x, vd->guest.dirty[y])) { |
2810 | continue; | |
2811 | } | |
eb8934b0 GH |
2812 | if ((x + 1) * cmp_bytes > line_bytes) { |
2813 | _cmp_bytes = line_bytes - x * cmp_bytes; | |
bea60dd7 | 2814 | } |
eb8934b0 | 2815 | assert(_cmp_bytes >= 0); |
bea60dd7 | 2816 | if (memcmp(server_ptr, guest_ptr, _cmp_bytes) == 0) { |
12b316d4 PL |
2817 | continue; |
2818 | } | |
bea60dd7 | 2819 | memcpy(server_ptr, guest_ptr, _cmp_bytes); |
12b316d4 PL |
2820 | if (!vd->non_adaptive) { |
2821 | vnc_rect_updated(vd, x * VNC_DIRTY_PIXELS_PER_BIT, | |
2822 | y, &tv); | |
1fc62412 | 2823 | } |
12b316d4 PL |
2824 | QTAILQ_FOREACH(vs, &vd->clients, next) { |
2825 | set_bit(x, vs->dirty[y]); | |
2826 | } | |
2827 | has_dirty++; | |
1fc62412 | 2828 | } |
12b316d4 PL |
2829 | |
2830 | y++; | |
1fc62412 | 2831 | } |
9f64916d | 2832 | qemu_pixman_image_unref(tmpbuf); |
1fc62412 SS |
2833 | return has_dirty; |
2834 | } | |
2835 | ||
0f7b2864 | 2836 | static void vnc_refresh(DisplayChangeListener *dcl) |
703bc68f | 2837 | { |
0f7b2864 | 2838 | VncDisplay *vd = container_of(dcl, VncDisplay, dcl); |
41b4bef6 AS |
2839 | VncState *vs, *vn; |
2840 | int has_dirty, rects = 0; | |
703bc68f | 2841 | |
9d6b2070 C |
2842 | if (QTAILQ_EMPTY(&vd->clients)) { |
2843 | update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_MAX); | |
2844 | return; | |
2845 | } | |
2846 | ||
1d0d59fe | 2847 | graphic_hw_update(vd->dcl.con); |
703bc68f | 2848 | |
bd023f95 | 2849 | if (vnc_trylock_display(vd)) { |
0f7b2864 | 2850 | update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE); |
bd023f95 CC |
2851 | return; |
2852 | } | |
2853 | ||
1fc62412 | 2854 | has_dirty = vnc_refresh_server_surface(vd); |
bd023f95 | 2855 | vnc_unlock_display(vd); |
1fc62412 | 2856 | |
41b4bef6 | 2857 | QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) { |
38ee14f4 | 2858 | rects += vnc_update_client(vs, has_dirty, false); |
6185c578 | 2859 | /* vs might be free()ed here */ |
703bc68f | 2860 | } |
bd023f95 | 2861 | |
2430ffe4 | 2862 | if (has_dirty && rects) { |
0f7b2864 GH |
2863 | vd->dcl.update_interval /= 2; |
2864 | if (vd->dcl.update_interval < VNC_REFRESH_INTERVAL_BASE) { | |
2865 | vd->dcl.update_interval = VNC_REFRESH_INTERVAL_BASE; | |
2866 | } | |
2430ffe4 | 2867 | } else { |
0f7b2864 GH |
2868 | vd->dcl.update_interval += VNC_REFRESH_INTERVAL_INC; |
2869 | if (vd->dcl.update_interval > VNC_REFRESH_INTERVAL_MAX) { | |
2870 | vd->dcl.update_interval = VNC_REFRESH_INTERVAL_MAX; | |
2871 | } | |
703bc68f SS |
2872 | } |
2873 | } | |
2874 | ||
04d2529d | 2875 | static void vnc_connect(VncDisplay *vd, QIOChannelSocket *sioc, |
2c8cf549 | 2876 | bool skipauth, bool websocket) |
3aa3eea3 | 2877 | { |
fedf0d35 | 2878 | VncState *vs = g_new0(VncState, 1); |
90cd03a3 | 2879 | bool first_client = QTAILQ_EMPTY(&vd->clients); |
7d964c9d CC |
2880 | int i; |
2881 | ||
04d2529d DB |
2882 | vs->sioc = sioc; |
2883 | object_ref(OBJECT(vs->sioc)); | |
2884 | vs->ioc = QIO_CHANNEL(sioc); | |
2885 | object_ref(OBJECT(vs->ioc)); | |
d616ccc5 | 2886 | vs->vd = vd; |
7e7e2ebc | 2887 | |
04d2529d DB |
2888 | buffer_init(&vs->input, "vnc-input/%p", sioc); |
2889 | buffer_init(&vs->output, "vnc-output/%p", sioc); | |
04d2529d | 2890 | buffer_init(&vs->jobs_buffer, "vnc-jobs_buffer/%p", sioc); |
543b9580 | 2891 | |
04d2529d DB |
2892 | buffer_init(&vs->tight.tight, "vnc-tight/%p", sioc); |
2893 | buffer_init(&vs->tight.zlib, "vnc-tight-zlib/%p", sioc); | |
2894 | buffer_init(&vs->tight.gradient, "vnc-tight-gradient/%p", sioc); | |
543b9580 | 2895 | #ifdef CONFIG_VNC_JPEG |
04d2529d | 2896 | buffer_init(&vs->tight.jpeg, "vnc-tight-jpeg/%p", sioc); |
543b9580 GH |
2897 | #endif |
2898 | #ifdef CONFIG_VNC_PNG | |
04d2529d | 2899 | buffer_init(&vs->tight.png, "vnc-tight-png/%p", sioc); |
543b9580 | 2900 | #endif |
04d2529d DB |
2901 | buffer_init(&vs->zlib.zlib, "vnc-zlib/%p", sioc); |
2902 | buffer_init(&vs->zrle.zrle, "vnc-zrle/%p", sioc); | |
2903 | buffer_init(&vs->zrle.fb, "vnc-zrle-fb/%p", sioc); | |
2904 | buffer_init(&vs->zrle.zlib, "vnc-zrle-zlib/%p", sioc); | |
543b9580 | 2905 | |
7e7e2ebc DB |
2906 | if (skipauth) { |
2907 | vs->auth = VNC_AUTH_NONE; | |
7e7e2ebc | 2908 | vs->subauth = VNC_AUTH_INVALID; |
7e7e2ebc | 2909 | } else { |
f9148c8a DB |
2910 | if (websocket) { |
2911 | vs->auth = vd->ws_auth; | |
2912 | vs->subauth = VNC_AUTH_INVALID; | |
2913 | } else { | |
2914 | vs->auth = vd->auth; | |
2915 | vs->subauth = vd->subauth; | |
2916 | } | |
7e7e2ebc | 2917 | } |
04d2529d DB |
2918 | VNC_DEBUG("Client sioc=%p ws=%d auth=%d subauth=%d\n", |
2919 | sioc, websocket, vs->auth, vs->subauth); | |
7e7e2ebc | 2920 | |
7267c094 | 2921 | vs->lossy_rect = g_malloc0(VNC_STAT_ROWS * sizeof (*vs->lossy_rect)); |
7d964c9d | 2922 | for (i = 0; i < VNC_STAT_ROWS; ++i) { |
fedf0d35 | 2923 | vs->lossy_rect[i] = g_new0(uint8_t, VNC_STAT_COLS); |
7d964c9d | 2924 | } |
753b4053 | 2925 | |
04d2529d | 2926 | VNC_DEBUG("New client on socket %p\n", vs->sioc); |
0f7b2864 | 2927 | update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE); |
04d2529d | 2928 | qio_channel_set_blocking(vs->ioc, false, NULL); |
7536ee4b TH |
2929 | if (websocket) { |
2930 | vs->websocket = 1; | |
38e5756a | 2931 | if (vd->tlscreds) { |
04d2529d DB |
2932 | vs->ioc_tag = qio_channel_add_watch( |
2933 | vs->ioc, G_IO_IN, vncws_tls_handshake_io, vs, NULL); | |
3e305e4a | 2934 | } else { |
04d2529d DB |
2935 | vs->ioc_tag = qio_channel_add_watch( |
2936 | vs->ioc, G_IO_IN, vncws_handshake_io, vs, NULL); | |
0057a0d5 | 2937 | } |
04d2529d DB |
2938 | } else { |
2939 | vs->ioc_tag = qio_channel_add_watch( | |
2940 | vs->ioc, G_IO_IN, vnc_client_io, vs, NULL); | |
7536ee4b | 2941 | } |
753b4053 | 2942 | |
4a80dba3 | 2943 | vnc_client_cache_addr(vs); |
fb6ba0d5 | 2944 | vnc_qmp_event(vs, QAPI_EVENT_VNC_CONNECTED); |
8cf36489 | 2945 | vnc_set_share_mode(vs, VNC_SHARE_MODE_CONNECTING); |
4a80dba3 | 2946 | |
753b4053 AL |
2947 | vs->last_x = -1; |
2948 | vs->last_y = -1; | |
2949 | ||
2950 | vs->as.freq = 44100; | |
2951 | vs->as.nchannels = 2; | |
2952 | vs->as.fmt = AUD_FMT_S16; | |
2953 | vs->as.endianness = 0; | |
2954 | ||
bd023f95 | 2955 | qemu_mutex_init(&vs->output_mutex); |
175b2a6e | 2956 | vs->bh = qemu_bh_new(vnc_jobs_bh, vs); |
bd023f95 | 2957 | |
e5f34cdd | 2958 | QTAILQ_INSERT_TAIL(&vd->clients, vs, next); |
c7628bff GH |
2959 | if (first_client) { |
2960 | vnc_update_server_surface(vd); | |
2961 | } | |
1fc62412 | 2962 | |
1d0d59fe | 2963 | graphic_hw_update(vd->dcl.con); |
1fc62412 | 2964 | |
90cd03a3 | 2965 | if (!vs->websocket) { |
dbee9897 | 2966 | vnc_start_protocol(vs); |
90cd03a3 DB |
2967 | } |
2968 | ||
2969 | if (vd->num_connecting > vd->connections_limit) { | |
2970 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
2971 | if (vs->share_mode == VNC_SHARE_MODE_CONNECTING) { | |
2972 | vnc_disconnect_start(vs); | |
2973 | return; | |
2974 | } | |
2975 | } | |
2976 | } | |
2977 | } | |
2978 | ||
dbee9897 | 2979 | void vnc_start_protocol(VncState *vs) |
90cd03a3 | 2980 | { |
3aa3eea3 AZ |
2981 | vnc_write(vs, "RFB 003.008\n", 12); |
2982 | vnc_flush(vs); | |
2983 | vnc_read_when(vs, protocol_version, 12); | |
753b4053 | 2984 | |
37c34d9d AL |
2985 | vs->mouse_mode_notifier.notify = check_pointer_type_change; |
2986 | qemu_add_mouse_mode_change_notifier(&vs->mouse_mode_notifier); | |
3aa3eea3 AZ |
2987 | } |
2988 | ||
04d2529d DB |
2989 | static gboolean vnc_listen_io(QIOChannel *ioc, |
2990 | GIOCondition condition, | |
2991 | void *opaque) | |
24236869 | 2992 | { |
bf01c179 | 2993 | VncDisplay *vd = opaque; |
04d2529d DB |
2994 | QIOChannelSocket *sioc = NULL; |
2995 | Error *err = NULL; | |
4ee74fa7 DB |
2996 | bool isWebsock = false; |
2997 | size_t i; | |
2998 | ||
2999 | for (i = 0; i < vd->nlwebsock; i++) { | |
3000 | if (ioc == QIO_CHANNEL(vd->lwebsock[i])) { | |
3001 | isWebsock = true; | |
3002 | break; | |
3003 | } | |
3004 | } | |
24236869 | 3005 | |
04d2529d DB |
3006 | sioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(ioc), &err); |
3007 | if (sioc != NULL) { | |
10bcfe58 | 3008 | qio_channel_set_name(QIO_CHANNEL(sioc), |
4ee74fa7 | 3009 | isWebsock ? "vnc-ws-server" : "vnc-server"); |
04d2529d | 3010 | qio_channel_set_delay(QIO_CHANNEL(sioc), false); |
4ee74fa7 | 3011 | vnc_connect(vd, sioc, false, isWebsock); |
04d2529d | 3012 | object_unref(OBJECT(sioc)); |
8e9b0d24 | 3013 | } else { |
04d2529d DB |
3014 | /* client probably closed connection before we got there */ |
3015 | error_free(err); | |
24236869 | 3016 | } |
7536ee4b | 3017 | |
04d2529d | 3018 | return TRUE; |
7536ee4b | 3019 | } |
7536ee4b | 3020 | |
7c20b4a3 | 3021 | static const DisplayChangeListenerOps dcl_ops = { |
34da30af BH |
3022 | .dpy_name = "vnc", |
3023 | .dpy_refresh = vnc_refresh, | |
34da30af BH |
3024 | .dpy_gfx_update = vnc_dpy_update, |
3025 | .dpy_gfx_switch = vnc_dpy_switch, | |
3026 | .dpy_gfx_check_format = qemu_pixman_check_format, | |
3027 | .dpy_mouse_set = vnc_mouse_set, | |
3028 | .dpy_cursor_define = vnc_dpy_cursor_define, | |
7c20b4a3 GH |
3029 | }; |
3030 | ||
14f7143e | 3031 | void vnc_display_init(const char *id) |
24236869 | 3032 | { |
bf01c179 | 3033 | VncDisplay *vd; |
4db14629 GH |
3034 | |
3035 | if (vnc_display_find(id) != NULL) { | |
3036 | return; | |
3037 | } | |
bf01c179 | 3038 | vd = g_malloc0(sizeof(*vd)); |
24236869 | 3039 | |
bf01c179 DB |
3040 | vd->id = strdup(id); |
3041 | QTAILQ_INSERT_TAIL(&vnc_displays, vd, next); | |
24236869 | 3042 | |
bf01c179 DB |
3043 | QTAILQ_INIT(&vd->clients); |
3044 | vd->expires = TIME_MAX; | |
24236869 | 3045 | |
40066175 GH |
3046 | if (keyboard_layout) { |
3047 | trace_vnc_key_map_init(keyboard_layout); | |
bf01c179 | 3048 | vd->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout); |
40066175 | 3049 | } else { |
bf01c179 | 3050 | vd->kbd_layout = init_keyboard_layout(name2keysym, "en-us"); |
40066175 | 3051 | } |
24236869 | 3052 | |
bf01c179 | 3053 | if (!vd->kbd_layout) { |
28a76be8 | 3054 | exit(1); |
bf01c179 | 3055 | } |
24236869 | 3056 | |
bf01c179 DB |
3057 | vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE; |
3058 | vd->connections_limit = 32; | |
12e29b16 | 3059 | |
bf01c179 | 3060 | qemu_mutex_init(&vd->mutex); |
bd023f95 | 3061 | vnc_start_worker_thread(); |
bd023f95 | 3062 | |
bf01c179 DB |
3063 | vd->dcl.ops = &dcl_ops; |
3064 | register_displaychangelistener(&vd->dcl); | |
71cab5ca TS |
3065 | } |
3066 | ||
6f43024c | 3067 | |
bf01c179 | 3068 | static void vnc_display_close(VncDisplay *vd) |
71cab5ca | 3069 | { |
4ee74fa7 | 3070 | size_t i; |
bf01c179 | 3071 | if (!vd) { |
452b4d88 | 3072 | return; |
bf01c179 DB |
3073 | } |
3074 | vd->is_unix = false; | |
4ee74fa7 DB |
3075 | for (i = 0; i < vd->nlsock; i++) { |
3076 | if (vd->lsock_tag[i]) { | |
3077 | g_source_remove(vd->lsock_tag[i]); | |
04d2529d | 3078 | } |
4ee74fa7 | 3079 | object_unref(OBJECT(vd->lsock[i])); |
71cab5ca | 3080 | } |
4ee74fa7 DB |
3081 | g_free(vd->lsock); |
3082 | g_free(vd->lsock_tag); | |
3083 | vd->lsock = NULL; | |
2dc120be | 3084 | vd->lsock_tag = NULL; |
4ee74fa7 DB |
3085 | vd->nlsock = 0; |
3086 | ||
3087 | for (i = 0; i < vd->nlwebsock; i++) { | |
3088 | if (vd->lwebsock_tag[i]) { | |
3089 | g_source_remove(vd->lwebsock_tag[i]); | |
04d2529d | 3090 | } |
4ee74fa7 | 3091 | object_unref(OBJECT(vd->lwebsock[i])); |
7536ee4b | 3092 | } |
4ee74fa7 DB |
3093 | g_free(vd->lwebsock); |
3094 | g_free(vd->lwebsock_tag); | |
3095 | vd->lwebsock = NULL; | |
2dc120be | 3096 | vd->lwebsock_tag = NULL; |
4ee74fa7 DB |
3097 | vd->nlwebsock = 0; |
3098 | ||
bf01c179 DB |
3099 | vd->auth = VNC_AUTH_INVALID; |
3100 | vd->subauth = VNC_AUTH_INVALID; | |
3101 | if (vd->tlscreds) { | |
3102 | object_unparent(OBJECT(vd->tlscreds)); | |
3103 | vd->tlscreds = NULL; | |
3e305e4a | 3104 | } |
bf01c179 DB |
3105 | g_free(vd->tlsaclname); |
3106 | vd->tlsaclname = NULL; | |
a54f0d2b PO |
3107 | if (vd->lock_key_sync) { |
3108 | qemu_remove_led_event_handler(vd->led); | |
2dc120be | 3109 | vd->led = NULL; |
a54f0d2b | 3110 | } |
70848515 TS |
3111 | } |
3112 | ||
14f7143e | 3113 | int vnc_display_password(const char *id, const char *password) |
70848515 | 3114 | { |
bf01c179 | 3115 | VncDisplay *vd = vnc_display_find(id); |
70848515 | 3116 | |
bf01c179 | 3117 | if (!vd) { |
a6aa9d3e | 3118 | return -EINVAL; |
7ef92331 | 3119 | } |
bf01c179 | 3120 | if (vd->auth == VNC_AUTH_NONE) { |
cf864569 | 3121 | error_printf_unless_qmp("If you want use passwords please enable " |
7ea7d36e | 3122 | "password auth using '-vnc ${dpy},password'.\n"); |
cf864569 | 3123 | return -EINVAL; |
1cd20f8b AL |
3124 | } |
3125 | ||
bf01c179 DB |
3126 | g_free(vd->password); |
3127 | vd->password = g_strdup(password); | |
a6aa9d3e LC |
3128 | |
3129 | return 0; | |
71cab5ca TS |
3130 | } |
3131 | ||
14f7143e | 3132 | int vnc_display_pw_expire(const char *id, time_t expires) |
3c9405a0 | 3133 | { |
bf01c179 | 3134 | VncDisplay *vd = vnc_display_find(id); |
3c9405a0 | 3135 | |
bf01c179 | 3136 | if (!vd) { |
1643f2b2 GH |
3137 | return -EINVAL; |
3138 | } | |
3139 | ||
bf01c179 | 3140 | vd->expires = expires; |
3c9405a0 GH |
3141 | return 0; |
3142 | } | |
3143 | ||
bf01c179 | 3144 | static void vnc_display_print_local_addr(VncDisplay *vd) |
f92f8afe | 3145 | { |
04d2529d | 3146 | SocketAddress *addr; |
04d2529d | 3147 | Error *err = NULL; |
d616ccc5 | 3148 | |
4ee74fa7 DB |
3149 | if (!vd->nlsock) { |
3150 | return; | |
3151 | } | |
3152 | ||
3153 | addr = qio_channel_socket_get_local_address(vd->lsock[0], &err); | |
04d2529d | 3154 | if (!addr) { |
33df7bf3 | 3155 | return; |
04d2529d DB |
3156 | } |
3157 | ||
3158 | if (addr->type != SOCKET_ADDRESS_KIND_INET) { | |
3159 | qapi_free_SocketAddress(addr); | |
33df7bf3 | 3160 | return; |
04d2529d | 3161 | } |
33df7bf3 PB |
3162 | error_printf_unless_qmp("VNC server running on %s:%s\n", |
3163 | addr->u.inet.data->host, | |
3164 | addr->u.inet.data->port); | |
04d2529d | 3165 | qapi_free_SocketAddress(addr); |
f92f8afe AL |
3166 | } |
3167 | ||
4db14629 GH |
3168 | static QemuOptsList qemu_vnc_opts = { |
3169 | .name = "vnc", | |
3170 | .head = QTAILQ_HEAD_INITIALIZER(qemu_vnc_opts.head), | |
3171 | .implied_opt_name = "vnc", | |
3172 | .desc = { | |
3173 | { | |
3174 | .name = "vnc", | |
3175 | .type = QEMU_OPT_STRING, | |
3176 | },{ | |
3177 | .name = "websocket", | |
3178 | .type = QEMU_OPT_STRING, | |
3179 | },{ | |
3e305e4a DB |
3180 | .name = "tls-creds", |
3181 | .type = QEMU_OPT_STRING, | |
3182 | },{ | |
3183 | /* Deprecated in favour of tls-creds */ | |
4db14629 GH |
3184 | .name = "x509", |
3185 | .type = QEMU_OPT_STRING, | |
3186 | },{ | |
3187 | .name = "share", | |
3188 | .type = QEMU_OPT_STRING, | |
1d0d59fe GH |
3189 | },{ |
3190 | .name = "display", | |
3191 | .type = QEMU_OPT_STRING, | |
3192 | },{ | |
3193 | .name = "head", | |
3194 | .type = QEMU_OPT_NUMBER, | |
e5f34cdd GH |
3195 | },{ |
3196 | .name = "connections", | |
3197 | .type = QEMU_OPT_NUMBER, | |
88428b7a GA |
3198 | },{ |
3199 | .name = "to", | |
3200 | .type = QEMU_OPT_NUMBER, | |
3201 | },{ | |
3202 | .name = "ipv4", | |
3203 | .type = QEMU_OPT_BOOL, | |
3204 | },{ | |
3205 | .name = "ipv6", | |
3206 | .type = QEMU_OPT_BOOL, | |
4db14629 GH |
3207 | },{ |
3208 | .name = "password", | |
3209 | .type = QEMU_OPT_BOOL, | |
3210 | },{ | |
3211 | .name = "reverse", | |
3212 | .type = QEMU_OPT_BOOL, | |
3213 | },{ | |
3214 | .name = "lock-key-sync", | |
3215 | .type = QEMU_OPT_BOOL, | |
c5ce8333 GH |
3216 | },{ |
3217 | .name = "key-delay-ms", | |
3218 | .type = QEMU_OPT_NUMBER, | |
4db14629 GH |
3219 | },{ |
3220 | .name = "sasl", | |
3221 | .type = QEMU_OPT_BOOL, | |
3222 | },{ | |
3e305e4a | 3223 | /* Deprecated in favour of tls-creds */ |
4db14629 GH |
3224 | .name = "tls", |
3225 | .type = QEMU_OPT_BOOL, | |
3226 | },{ | |
3e305e4a | 3227 | /* Deprecated in favour of tls-creds */ |
4db14629 | 3228 | .name = "x509verify", |
8c7d0645 | 3229 | .type = QEMU_OPT_STRING, |
4db14629 GH |
3230 | },{ |
3231 | .name = "acl", | |
3232 | .type = QEMU_OPT_BOOL, | |
3233 | },{ | |
3234 | .name = "lossy", | |
3235 | .type = QEMU_OPT_BOOL, | |
3236 | },{ | |
3237 | .name = "non-adaptive", | |
3238 | .type = QEMU_OPT_BOOL, | |
3239 | }, | |
3240 | { /* end of list */ } | |
3241 | }, | |
3242 | }; | |
3243 | ||
0dd72e15 | 3244 | |
3e305e4a | 3245 | static int |
eda24e18 DB |
3246 | vnc_display_setup_auth(int *auth, |
3247 | int *subauth, | |
3248 | QCryptoTLSCreds *tlscreds, | |
0dd72e15 DB |
3249 | bool password, |
3250 | bool sasl, | |
3e305e4a DB |
3251 | bool websocket, |
3252 | Error **errp) | |
0dd72e15 DB |
3253 | { |
3254 | /* | |
3255 | * We have a choice of 3 authentication options | |
3256 | * | |
3257 | * 1. none | |
3258 | * 2. vnc | |
3259 | * 3. sasl | |
3260 | * | |
3261 | * The channel can be run in 2 modes | |
3262 | * | |
3263 | * 1. clear | |
3264 | * 2. tls | |
3265 | * | |
3266 | * And TLS can use 2 types of credentials | |
3267 | * | |
3268 | * 1. anon | |
3269 | * 2. x509 | |
3270 | * | |
3271 | * We thus have 9 possible logical combinations | |
3272 | * | |
3273 | * 1. clear + none | |
3274 | * 2. clear + vnc | |
3275 | * 3. clear + sasl | |
3276 | * 4. tls + anon + none | |
3277 | * 5. tls + anon + vnc | |
3278 | * 6. tls + anon + sasl | |
3279 | * 7. tls + x509 + none | |
3280 | * 8. tls + x509 + vnc | |
3281 | * 9. tls + x509 + sasl | |
3282 | * | |
3283 | * These need to be mapped into the VNC auth schemes | |
3284 | * in an appropriate manner. In regular VNC, all the | |
3285 | * TLS options get mapped into VNC_AUTH_VENCRYPT | |
3286 | * sub-auth types. | |
f9148c8a DB |
3287 | * |
3288 | * In websockets, the https:// protocol already provides | |
3289 | * TLS support, so there is no need to make use of the | |
3290 | * VeNCrypt extension. Furthermore, websockets browser | |
3291 | * clients could not use VeNCrypt even if they wanted to, | |
3292 | * as they cannot control when the TLS handshake takes | |
3293 | * place. Thus there is no option but to rely on https://, | |
3294 | * meaning combinations 4->6 and 7->9 will be mapped to | |
3295 | * VNC auth schemes in the same way as combos 1->3. | |
3296 | * | |
3297 | * Regardless of fact that we have a different mapping to | |
3298 | * VNC auth mechs for plain VNC vs websockets VNC, the end | |
3299 | * result has the same security characteristics. | |
0dd72e15 | 3300 | */ |
eda24e18 DB |
3301 | if (websocket || !tlscreds) { |
3302 | if (password) { | |
0dd72e15 | 3303 | VNC_DEBUG("Initializing VNC server with password auth\n"); |
eda24e18 DB |
3304 | *auth = VNC_AUTH_VNC; |
3305 | } else if (sasl) { | |
3306 | VNC_DEBUG("Initializing VNC server with SASL auth\n"); | |
3307 | *auth = VNC_AUTH_SASL; | |
f9148c8a | 3308 | } else { |
eda24e18 DB |
3309 | VNC_DEBUG("Initializing VNC server with no auth\n"); |
3310 | *auth = VNC_AUTH_NONE; | |
f9148c8a | 3311 | } |
eda24e18 DB |
3312 | *subauth = VNC_AUTH_INVALID; |
3313 | } else { | |
3314 | bool is_x509 = object_dynamic_cast(OBJECT(tlscreds), | |
3315 | TYPE_QCRYPTO_TLS_CREDS_X509) != NULL; | |
3316 | bool is_anon = object_dynamic_cast(OBJECT(tlscreds), | |
3317 | TYPE_QCRYPTO_TLS_CREDS_ANON) != NULL; | |
3318 | ||
3319 | if (!is_x509 && !is_anon) { | |
3320 | error_setg(errp, | |
3321 | "Unsupported TLS cred type %s", | |
3322 | object_get_typename(OBJECT(tlscreds))); | |
3323 | return -1; | |
3324 | } | |
3325 | *auth = VNC_AUTH_VENCRYPT; | |
3326 | if (password) { | |
3327 | if (is_x509) { | |
3328 | VNC_DEBUG("Initializing VNC server with x509 password auth\n"); | |
3329 | *subauth = VNC_AUTH_VENCRYPT_X509VNC; | |
3330 | } else { | |
3331 | VNC_DEBUG("Initializing VNC server with TLS password auth\n"); | |
3332 | *subauth = VNC_AUTH_VENCRYPT_TLSVNC; | |
3333 | } | |
3334 | ||
3335 | } else if (sasl) { | |
3336 | if (is_x509) { | |
0dd72e15 | 3337 | VNC_DEBUG("Initializing VNC server with x509 SASL auth\n"); |
eda24e18 | 3338 | *subauth = VNC_AUTH_VENCRYPT_X509SASL; |
3e305e4a | 3339 | } else { |
eda24e18 DB |
3340 | VNC_DEBUG("Initializing VNC server with TLS SASL auth\n"); |
3341 | *subauth = VNC_AUTH_VENCRYPT_TLSSASL; | |
0dd72e15 DB |
3342 | } |
3343 | } else { | |
eda24e18 | 3344 | if (is_x509) { |
0dd72e15 | 3345 | VNC_DEBUG("Initializing VNC server with x509 no auth\n"); |
eda24e18 | 3346 | *subauth = VNC_AUTH_VENCRYPT_X509NONE; |
3e305e4a | 3347 | } else { |
eda24e18 DB |
3348 | VNC_DEBUG("Initializing VNC server with TLS no auth\n"); |
3349 | *subauth = VNC_AUTH_VENCRYPT_TLSNONE; | |
0dd72e15 | 3350 | } |
f9148c8a | 3351 | } |
0dd72e15 | 3352 | } |
3e305e4a DB |
3353 | return 0; |
3354 | } | |
3355 | ||
3356 | ||
3357 | /* | |
3358 | * Handle back compat with old CLI syntax by creating some | |
3359 | * suitable QCryptoTLSCreds objects | |
3360 | */ | |
3361 | static QCryptoTLSCreds * | |
3362 | vnc_display_create_creds(bool x509, | |
3363 | bool x509verify, | |
3364 | const char *dir, | |
3365 | const char *id, | |
3366 | Error **errp) | |
3367 | { | |
3368 | gchar *credsid = g_strdup_printf("tlsvnc%s", id); | |
3369 | Object *parent = object_get_objects_root(); | |
3370 | Object *creds; | |
3371 | Error *err = NULL; | |
3372 | ||
3373 | if (x509) { | |
3374 | creds = object_new_with_props(TYPE_QCRYPTO_TLS_CREDS_X509, | |
3375 | parent, | |
3376 | credsid, | |
3377 | &err, | |
3378 | "endpoint", "server", | |
3379 | "dir", dir, | |
3380 | "verify-peer", x509verify ? "yes" : "no", | |
3381 | NULL); | |
3382 | } else { | |
3383 | creds = object_new_with_props(TYPE_QCRYPTO_TLS_CREDS_ANON, | |
3384 | parent, | |
3385 | credsid, | |
3386 | &err, | |
3387 | "endpoint", "server", | |
3388 | NULL); | |
3389 | } | |
3390 | ||
3391 | g_free(credsid); | |
3392 | ||
3393 | if (err) { | |
3394 | error_propagate(errp, err); | |
3395 | return NULL; | |
3396 | } | |
3397 | ||
3398 | return QCRYPTO_TLS_CREDS(creds); | |
0dd72e15 DB |
3399 | } |
3400 | ||
3e305e4a | 3401 | |
275e0d61 DB |
3402 | static int vnc_display_get_address(const char *addrstr, |
3403 | bool websocket, | |
3404 | int displaynum, | |
3405 | int to, | |
3406 | bool has_ipv4, | |
3407 | bool has_ipv6, | |
3408 | bool ipv4, | |
3409 | bool ipv6, | |
3410 | SocketAddress **retaddr, | |
3411 | Error **errp) | |
3412 | { | |
3413 | int ret = -1; | |
3414 | SocketAddress *addr = NULL; | |
3415 | ||
3416 | addr = g_new0(SocketAddress, 1); | |
3417 | ||
3418 | if (strncmp(addrstr, "unix:", 5) == 0) { | |
3419 | addr->type = SOCKET_ADDRESS_KIND_UNIX; | |
3420 | addr->u.q_unix.data = g_new0(UnixSocketAddress, 1); | |
3421 | addr->u.q_unix.data->path = g_strdup(addrstr + 5); | |
3422 | ||
3423 | if (websocket) { | |
3424 | error_setg(errp, "UNIX sockets not supported with websock"); | |
3425 | goto cleanup; | |
3426 | } | |
3427 | ||
3428 | if (to) { | |
3429 | error_setg(errp, "Port range not support with UNIX socket"); | |
3430 | goto cleanup; | |
3431 | } | |
3432 | ret = 0; | |
3433 | } else { | |
3434 | const char *port; | |
3435 | size_t hostlen; | |
3436 | unsigned long long baseport = 0; | |
3437 | InetSocketAddress *inet; | |
3438 | ||
3439 | port = strrchr(addrstr, ':'); | |
3440 | if (!port) { | |
3441 | if (websocket) { | |
3442 | hostlen = 0; | |
3443 | port = addrstr; | |
3444 | } else { | |
3445 | error_setg(errp, "no vnc port specified"); | |
3446 | goto cleanup; | |
3447 | } | |
3448 | } else { | |
3449 | hostlen = port - addrstr; | |
3450 | port++; | |
3451 | if (*port == '\0') { | |
3452 | error_setg(errp, "vnc port cannot be empty"); | |
3453 | goto cleanup; | |
3454 | } | |
3455 | } | |
3456 | ||
3457 | addr->type = SOCKET_ADDRESS_KIND_INET; | |
3458 | inet = addr->u.inet.data = g_new0(InetSocketAddress, 1); | |
3459 | if (addrstr[0] == '[' && addrstr[hostlen - 1] == ']') { | |
3460 | inet->host = g_strndup(addrstr + 1, hostlen - 2); | |
3461 | } else { | |
3462 | inet->host = g_strndup(addrstr, hostlen); | |
3463 | } | |
3464 | /* plain VNC port is just an offset, for websocket | |
3465 | * port is absolute */ | |
3466 | if (websocket) { | |
3467 | if (g_str_equal(addrstr, "") || | |
3468 | g_str_equal(addrstr, "on")) { | |
396f935a DB |
3469 | if (displaynum == -1) { |
3470 | error_setg(errp, "explicit websocket port is required"); | |
3471 | goto cleanup; | |
3472 | } | |
275e0d61 DB |
3473 | inet->port = g_strdup_printf( |
3474 | "%d", displaynum + 5700); | |
3475 | if (to) { | |
3476 | inet->has_to = true; | |
3477 | inet->to = to + 5700; | |
3478 | } | |
3479 | } else { | |
3480 | inet->port = g_strdup(port); | |
3481 | } | |
3482 | } else { | |
3483 | if (parse_uint_full(port, &baseport, 10) < 0) { | |
3484 | error_setg(errp, "can't convert to a number: %s", port); | |
3485 | goto cleanup; | |
3486 | } | |
3487 | if (baseport > 65535 || | |
3488 | baseport + 5900 > 65535) { | |
3489 | error_setg(errp, "port %s out of range", port); | |
3490 | goto cleanup; | |
3491 | } | |
3492 | inet->port = g_strdup_printf( | |
3493 | "%d", (int)baseport + 5900); | |
3494 | ||
3495 | if (to) { | |
3496 | inet->has_to = true; | |
3497 | inet->to = to + 5900; | |
3498 | } | |
3499 | } | |
3500 | ||
3501 | inet->ipv4 = ipv4; | |
3502 | inet->has_ipv4 = has_ipv4; | |
3503 | inet->ipv6 = ipv6; | |
3504 | inet->has_ipv6 = has_ipv6; | |
3505 | ||
3506 | ret = baseport; | |
3507 | } | |
3508 | ||
3509 | *retaddr = addr; | |
3510 | ||
3511 | cleanup: | |
3512 | if (ret < 0) { | |
3513 | qapi_free_SocketAddress(addr); | |
3514 | } | |
3515 | return ret; | |
3516 | } | |
3517 | ||
3518 | static int vnc_display_get_addresses(QemuOpts *opts, | |
396f935a DB |
3519 | SocketAddress ***retsaddr, |
3520 | size_t *retnsaddr, | |
3521 | SocketAddress ***retwsaddr, | |
3522 | size_t *retnwsaddr, | |
275e0d61 DB |
3523 | Error **errp) |
3524 | { | |
3525 | SocketAddress *saddr = NULL; | |
3526 | SocketAddress *wsaddr = NULL; | |
396f935a DB |
3527 | QemuOptsIter addriter; |
3528 | const char *addr; | |
275e0d61 DB |
3529 | int to = qemu_opt_get_number(opts, "to", 0); |
3530 | bool has_ipv4 = qemu_opt_get(opts, "ipv4"); | |
3531 | bool has_ipv6 = qemu_opt_get(opts, "ipv6"); | |
3532 | bool ipv4 = qemu_opt_get_bool(opts, "ipv4", false); | |
3533 | bool ipv6 = qemu_opt_get_bool(opts, "ipv6", false); | |
396f935a DB |
3534 | size_t i; |
3535 | int displaynum = -1; | |
3536 | int ret = -1; | |
275e0d61 | 3537 | |
396f935a DB |
3538 | *retsaddr = NULL; |
3539 | *retnsaddr = 0; | |
3540 | *retwsaddr = NULL; | |
3541 | *retnwsaddr = 0; | |
275e0d61 | 3542 | |
396f935a DB |
3543 | addr = qemu_opt_get(opts, "vnc"); |
3544 | if (addr == NULL || g_str_equal(addr, "none")) { | |
3545 | ret = 0; | |
3546 | goto cleanup; | |
3547 | } | |
3548 | if (qemu_opt_get(opts, "websocket") && | |
275e0d61 DB |
3549 | !qcrypto_hash_supports(QCRYPTO_HASH_ALG_SHA1)) { |
3550 | error_setg(errp, | |
3551 | "SHA1 hash support is required for websockets"); | |
396f935a DB |
3552 | goto cleanup; |
3553 | } | |
3554 | ||
3555 | qemu_opt_iter_init(&addriter, opts, "vnc"); | |
3556 | while ((addr = qemu_opt_iter_next(&addriter)) != NULL) { | |
3557 | int rv; | |
3558 | rv = vnc_display_get_address(addr, false, 0, to, | |
3559 | has_ipv4, has_ipv6, | |
3560 | ipv4, ipv6, | |
3561 | &saddr, errp); | |
3562 | if (rv < 0) { | |
3563 | goto cleanup; | |
3564 | } | |
3565 | /* Historical compat - first listen address can be used | |
3566 | * to set the default websocket port | |
3567 | */ | |
3568 | if (displaynum == -1) { | |
3569 | displaynum = rv; | |
3570 | } | |
3571 | *retsaddr = g_renew(SocketAddress *, *retsaddr, *retnsaddr + 1); | |
3572 | (*retsaddr)[(*retnsaddr)++] = saddr; | |
275e0d61 DB |
3573 | } |
3574 | ||
396f935a DB |
3575 | /* If we had multiple primary displays, we don't do defaults |
3576 | * for websocket, and require explicit config instead. */ | |
3577 | if (*retnsaddr > 1) { | |
3578 | displaynum = -1; | |
275e0d61 | 3579 | } |
396f935a DB |
3580 | |
3581 | qemu_opt_iter_init(&addriter, opts, "websocket"); | |
3582 | while ((addr = qemu_opt_iter_next(&addriter)) != NULL) { | |
3583 | if (vnc_display_get_address(addr, true, displaynum, to, | |
275e0d61 DB |
3584 | has_ipv4, has_ipv6, |
3585 | ipv4, ipv6, | |
3586 | &wsaddr, errp) < 0) { | |
396f935a | 3587 | goto cleanup; |
275e0d61 | 3588 | } |
396f935a DB |
3589 | |
3590 | /* Historical compat - if only a single listen address was | |
3591 | * provided, then this is used to set the default listen | |
3592 | * address for websocket too | |
3593 | */ | |
3594 | if (*retnsaddr == 1 && | |
3595 | (*retsaddr)[0]->type == SOCKET_ADDRESS_KIND_INET && | |
275e0d61 DB |
3596 | wsaddr->type == SOCKET_ADDRESS_KIND_INET && |
3597 | g_str_equal(wsaddr->u.inet.data->host, "") && | |
396f935a | 3598 | !g_str_equal((*retsaddr)[0]->u.inet.data->host, "")) { |
275e0d61 | 3599 | g_free(wsaddr->u.inet.data->host); |
396f935a DB |
3600 | wsaddr->u.inet.data->host = |
3601 | g_strdup((*retsaddr)[0]->u.inet.data->host); | |
275e0d61 | 3602 | } |
396f935a DB |
3603 | |
3604 | *retwsaddr = g_renew(SocketAddress *, *retwsaddr, *retnwsaddr + 1); | |
3605 | (*retwsaddr)[(*retnwsaddr)++] = wsaddr; | |
275e0d61 | 3606 | } |
275e0d61 | 3607 | |
396f935a DB |
3608 | ret = 0; |
3609 | cleanup: | |
3610 | if (ret < 0) { | |
3611 | for (i = 0; i < *retnsaddr; i++) { | |
3612 | qapi_free_SocketAddress((*retsaddr)[i]); | |
3613 | } | |
3614 | g_free(*retsaddr); | |
3615 | for (i = 0; i < *retnwsaddr; i++) { | |
3616 | qapi_free_SocketAddress((*retwsaddr)[i]); | |
3617 | } | |
3618 | g_free(*retwsaddr); | |
3619 | *retsaddr = *retwsaddr = NULL; | |
3620 | *retnsaddr = *retnwsaddr = 0; | |
3621 | } | |
3622 | return ret; | |
275e0d61 DB |
3623 | } |
3624 | ||
8bd22f47 | 3625 | static int vnc_display_connect(VncDisplay *vd, |
396f935a DB |
3626 | SocketAddress **saddr, |
3627 | size_t nsaddr, | |
3628 | SocketAddress **wsaddr, | |
3629 | size_t nwsaddr, | |
8bd22f47 DB |
3630 | Error **errp) |
3631 | { | |
3632 | /* connect to viewer */ | |
3633 | QIOChannelSocket *sioc = NULL; | |
396f935a | 3634 | if (nwsaddr != 0) { |
8bd22f47 DB |
3635 | error_setg(errp, "Cannot use websockets in reverse mode"); |
3636 | return -1; | |
3637 | } | |
396f935a DB |
3638 | if (nsaddr != 1) { |
3639 | error_setg(errp, "Expected a single address in reverse mode"); | |
3640 | return -1; | |
3641 | } | |
3642 | vd->is_unix = saddr[0]->type == SOCKET_ADDRESS_KIND_UNIX; | |
8bd22f47 DB |
3643 | sioc = qio_channel_socket_new(); |
3644 | qio_channel_set_name(QIO_CHANNEL(sioc), "vnc-reverse"); | |
396f935a | 3645 | if (qio_channel_socket_connect_sync(sioc, saddr[0], errp) < 0) { |
8bd22f47 DB |
3646 | return -1; |
3647 | } | |
3648 | vnc_connect(vd, sioc, false, false); | |
3649 | object_unref(OBJECT(sioc)); | |
3650 | return 0; | |
3651 | } | |
3652 | ||
3653 | ||
3654 | static int vnc_display_listen_addr(VncDisplay *vd, | |
3655 | SocketAddress *addr, | |
3656 | const char *name, | |
3657 | QIOChannelSocket ***lsock, | |
3658 | guint **lsock_tag, | |
3659 | size_t *nlsock, | |
3660 | Error **errp) | |
3661 | { | |
57a6d6d5 DB |
3662 | QIODNSResolver *resolver = qio_dns_resolver_get_instance(); |
3663 | SocketAddress **rawaddrs = NULL; | |
3664 | size_t nrawaddrs = 0; | |
3665 | Error *listenerr = NULL; | |
396f935a | 3666 | bool listening = false; |
57a6d6d5 | 3667 | size_t i; |
8bd22f47 | 3668 | |
57a6d6d5 DB |
3669 | if (qio_dns_resolver_lookup_sync(resolver, addr, &nrawaddrs, |
3670 | &rawaddrs, errp) < 0) { | |
8bd22f47 DB |
3671 | return -1; |
3672 | } | |
3673 | ||
57a6d6d5 DB |
3674 | for (i = 0; i < nrawaddrs; i++) { |
3675 | QIOChannelSocket *sioc = qio_channel_socket_new(); | |
3676 | ||
3677 | qio_channel_set_name(QIO_CHANNEL(sioc), name); | |
3678 | if (qio_channel_socket_listen_sync( | |
3679 | sioc, rawaddrs[i], listenerr == NULL ? &listenerr : NULL) < 0) { | |
3680 | continue; | |
3681 | } | |
396f935a | 3682 | listening = true; |
57a6d6d5 DB |
3683 | (*nlsock)++; |
3684 | *lsock = g_renew(QIOChannelSocket *, *lsock, *nlsock); | |
3685 | *lsock_tag = g_renew(guint, *lsock_tag, *nlsock); | |
3686 | ||
3687 | (*lsock)[*nlsock - 1] = sioc; | |
3688 | (*lsock_tag)[*nlsock - 1] = 0; | |
3689 | } | |
3690 | ||
3691 | for (i = 0; i < nrawaddrs; i++) { | |
3692 | qapi_free_SocketAddress(rawaddrs[i]); | |
3693 | } | |
3694 | g_free(rawaddrs); | |
3695 | ||
3696 | if (listenerr) { | |
396f935a | 3697 | if (!listening) { |
57a6d6d5 DB |
3698 | error_propagate(errp, listenerr); |
3699 | return -1; | |
3700 | } else { | |
3701 | error_free(listenerr); | |
3702 | } | |
3703 | } | |
3704 | ||
3705 | for (i = 0; i < *nlsock; i++) { | |
3706 | (*lsock_tag)[i] = qio_channel_add_watch( | |
3707 | QIO_CHANNEL((*lsock)[i]), | |
3708 | G_IO_IN, vnc_listen_io, vd, NULL); | |
3709 | } | |
8bd22f47 DB |
3710 | |
3711 | return 0; | |
3712 | } | |
3713 | ||
3714 | ||
3715 | static int vnc_display_listen(VncDisplay *vd, | |
396f935a DB |
3716 | SocketAddress **saddr, |
3717 | size_t nsaddr, | |
3718 | SocketAddress **wsaddr, | |
3719 | size_t nwsaddr, | |
8bd22f47 DB |
3720 | Error **errp) |
3721 | { | |
396f935a | 3722 | size_t i; |
8bd22f47 | 3723 | |
396f935a DB |
3724 | for (i = 0; i < nsaddr; i++) { |
3725 | if (vnc_display_listen_addr(vd, saddr[i], | |
3726 | "vnc-listen", | |
3727 | &vd->lsock, | |
3728 | &vd->lsock_tag, | |
3729 | &vd->nlsock, | |
3730 | errp) < 0) { | |
3731 | return -1; | |
3732 | } | |
8bd22f47 | 3733 | } |
396f935a DB |
3734 | for (i = 0; i < nwsaddr; i++) { |
3735 | if (vnc_display_listen_addr(vd, wsaddr[i], | |
3736 | "vnc-ws-listen", | |
3737 | &vd->lwebsock, | |
3738 | &vd->lwebsock_tag, | |
3739 | &vd->nlwebsock, | |
3740 | errp) < 0) { | |
3741 | return -1; | |
3742 | } | |
8bd22f47 DB |
3743 | } |
3744 | ||
3745 | return 0; | |
3746 | } | |
3747 | ||
3748 | ||
4db14629 | 3749 | void vnc_display_open(const char *id, Error **errp) |
71cab5ca | 3750 | { |
bf01c179 | 3751 | VncDisplay *vd = vnc_display_find(id); |
4db14629 | 3752 | QemuOpts *opts = qemu_opts_find(&qemu_vnc_opts, id); |
396f935a DB |
3753 | SocketAddress **saddr = NULL, **wsaddr = NULL; |
3754 | size_t nsaddr, nwsaddr; | |
e2a11d9d | 3755 | const char *share, *device_id; |
1d0d59fe | 3756 | QemuConsole *con; |
a2c72de0 GA |
3757 | bool password = false; |
3758 | bool reverse = false; | |
3e305e4a | 3759 | const char *credid; |
a2c72de0 | 3760 | bool sasl = false; |
d169f04b | 3761 | #ifdef CONFIG_VNC_SASL |
2f9606b3 AL |
3762 | int saslErr; |
3763 | #endif | |
76655d6d | 3764 | int acl = 0; |
3a0558b5 | 3765 | int lock_key_sync = 1; |
c5ce8333 | 3766 | int key_delay_ms; |
396f935a | 3767 | size_t i; |
71cab5ca | 3768 | |
bf01c179 | 3769 | if (!vd) { |
2d55f0e8 PB |
3770 | error_setg(errp, "VNC display not active"); |
3771 | return; | |
3772 | } | |
bf01c179 | 3773 | vnc_display_close(vd); |
24236869 | 3774 | |
4db14629 GH |
3775 | if (!opts) { |
3776 | return; | |
3777 | } | |
274c3b52 | 3778 | |
396f935a DB |
3779 | if (vnc_display_get_addresses(opts, &saddr, &nsaddr, |
3780 | &wsaddr, &nwsaddr, errp) < 0) { | |
e5560329 | 3781 | goto fail; |
e2a11d9d | 3782 | } |
e5560329 | 3783 | |
275e0d61 DB |
3784 | if (saddr == NULL) { |
3785 | return; | |
3786 | } | |
3787 | ||
4db14629 | 3788 | password = qemu_opt_get_bool(opts, "password", false); |
800567a6 DB |
3789 | if (password) { |
3790 | if (fips_get_state()) { | |
3791 | error_setg(errp, | |
3792 | "VNC password auth disabled due to FIPS mode, " | |
3793 | "consider using the VeNCrypt or SASL authentication " | |
3794 | "methods as an alternative"); | |
3795 | goto fail; | |
3796 | } | |
3797 | if (!qcrypto_cipher_supports( | |
f844836d | 3798 | QCRYPTO_CIPHER_ALG_DES_RFB, QCRYPTO_CIPHER_MODE_ECB)) { |
800567a6 DB |
3799 | error_setg(errp, |
3800 | "Cipher backend does not support DES RFB algorithm"); | |
3801 | goto fail; | |
3802 | } | |
4db14629 GH |
3803 | } |
3804 | ||
3805 | reverse = qemu_opt_get_bool(opts, "reverse", false); | |
3806 | lock_key_sync = qemu_opt_get_bool(opts, "lock-key-sync", true); | |
c5ce8333 | 3807 | key_delay_ms = qemu_opt_get_number(opts, "key-delay-ms", 1); |
4db14629 | 3808 | sasl = qemu_opt_get_bool(opts, "sasl", false); |
d169f04b DB |
3809 | #ifndef CONFIG_VNC_SASL |
3810 | if (sasl) { | |
3811 | error_setg(errp, "VNC SASL auth requires cyrus-sasl support"); | |
3812 | goto fail; | |
3813 | } | |
3814 | #endif /* CONFIG_VNC_SASL */ | |
3e305e4a DB |
3815 | credid = qemu_opt_get(opts, "tls-creds"); |
3816 | if (credid) { | |
3817 | Object *creds; | |
3818 | if (qemu_opt_get(opts, "tls") || | |
3819 | qemu_opt_get(opts, "x509") || | |
3820 | qemu_opt_get(opts, "x509verify")) { | |
3821 | error_setg(errp, | |
c62e90af | 3822 | "'tls-creds' parameter is mutually exclusive with " |
3e305e4a | 3823 | "'tls', 'x509' and 'x509verify' parameters"); |
4db14629 GH |
3824 | goto fail; |
3825 | } | |
3e305e4a DB |
3826 | |
3827 | creds = object_resolve_path_component( | |
3828 | object_get_objects_root(), credid); | |
3829 | if (!creds) { | |
3830 | error_setg(errp, "No TLS credentials with id '%s'", | |
3831 | credid); | |
3832 | goto fail; | |
3833 | } | |
bf01c179 | 3834 | vd->tlscreds = (QCryptoTLSCreds *) |
3e305e4a DB |
3835 | object_dynamic_cast(creds, |
3836 | TYPE_QCRYPTO_TLS_CREDS); | |
bf01c179 | 3837 | if (!vd->tlscreds) { |
3e305e4a DB |
3838 | error_setg(errp, "Object with id '%s' is not TLS credentials", |
3839 | credid); | |
3840 | goto fail; | |
3841 | } | |
bf01c179 | 3842 | object_ref(OBJECT(vd->tlscreds)); |
3e305e4a | 3843 | |
bf01c179 | 3844 | if (vd->tlscreds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { |
3e305e4a DB |
3845 | error_setg(errp, |
3846 | "Expecting TLS credentials with a server endpoint"); | |
3847 | goto fail; | |
3848 | } | |
3849 | } else { | |
3850 | const char *path; | |
3851 | bool tls = false, x509 = false, x509verify = false; | |
3852 | tls = qemu_opt_get_bool(opts, "tls", false); | |
3853 | if (tls) { | |
3854 | path = qemu_opt_get(opts, "x509"); | |
3855 | ||
3856 | if (path) { | |
3857 | x509 = true; | |
3858 | } else { | |
3859 | path = qemu_opt_get(opts, "x509verify"); | |
3860 | if (path) { | |
3861 | x509 = true; | |
3862 | x509verify = true; | |
3863 | } | |
3864 | } | |
bf01c179 | 3865 | vd->tlscreds = vnc_display_create_creds(x509, |
3e305e4a DB |
3866 | x509verify, |
3867 | path, | |
bf01c179 | 3868 | vd->id, |
3e305e4a | 3869 | errp); |
bf01c179 | 3870 | if (!vd->tlscreds) { |
3e305e4a DB |
3871 | goto fail; |
3872 | } | |
3873 | } | |
4db14629 | 3874 | } |
4db14629 | 3875 | acl = qemu_opt_get_bool(opts, "acl", false); |
4db14629 GH |
3876 | |
3877 | share = qemu_opt_get(opts, "share"); | |
3878 | if (share) { | |
3879 | if (strcmp(share, "ignore") == 0) { | |
bf01c179 | 3880 | vd->share_policy = VNC_SHARE_POLICY_IGNORE; |
4db14629 | 3881 | } else if (strcmp(share, "allow-exclusive") == 0) { |
bf01c179 | 3882 | vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE; |
4db14629 | 3883 | } else if (strcmp(share, "force-shared") == 0) { |
bf01c179 | 3884 | vd->share_policy = VNC_SHARE_POLICY_FORCE_SHARED; |
4db14629 GH |
3885 | } else { |
3886 | error_setg(errp, "unknown vnc share= option"); | |
3887 | goto fail; | |
3888 | } | |
3889 | } else { | |
bf01c179 | 3890 | vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE; |
4db14629 | 3891 | } |
bf01c179 | 3892 | vd->connections_limit = qemu_opt_get_number(opts, "connections", 32); |
4db14629 | 3893 | |
4db14629 | 3894 | #ifdef CONFIG_VNC_JPEG |
bf01c179 | 3895 | vd->lossy = qemu_opt_get_bool(opts, "lossy", false); |
4db14629 | 3896 | #endif |
bf01c179 | 3897 | vd->non_adaptive = qemu_opt_get_bool(opts, "non-adaptive", false); |
e22492d3 PL |
3898 | /* adaptive updates are only used with tight encoding and |
3899 | * if lossy updates are enabled so we can disable all the | |
3900 | * calculations otherwise */ | |
bf01c179 DB |
3901 | if (!vd->lossy) { |
3902 | vd->non_adaptive = true; | |
e22492d3 PL |
3903 | } |
3904 | ||
3e305e4a | 3905 | if (acl) { |
bf01c179 DB |
3906 | if (strcmp(vd->id, "default") == 0) { |
3907 | vd->tlsaclname = g_strdup("vnc.x509dname"); | |
c8496408 | 3908 | } else { |
bf01c179 | 3909 | vd->tlsaclname = g_strdup_printf("vnc.%s.x509dname", vd->id); |
c8496408 | 3910 | } |
bf01c179 | 3911 | qemu_acl_init(vd->tlsaclname); |
2cc45228 | 3912 | } |
76655d6d AL |
3913 | #ifdef CONFIG_VNC_SASL |
3914 | if (acl && sasl) { | |
c8496408 GH |
3915 | char *aclname; |
3916 | ||
bf01c179 | 3917 | if (strcmp(vd->id, "default") == 0) { |
c8496408 GH |
3918 | aclname = g_strdup("vnc.username"); |
3919 | } else { | |
bf01c179 | 3920 | aclname = g_strdup_printf("vnc.%s.username", vd->id); |
c8496408 | 3921 | } |
bf01c179 | 3922 | vd->sasl.acl = qemu_acl_init(aclname); |
c8496408 | 3923 | g_free(aclname); |
76655d6d AL |
3924 | } |
3925 | #endif | |
3926 | ||
eda24e18 DB |
3927 | if (vnc_display_setup_auth(&vd->auth, &vd->subauth, |
3928 | vd->tlscreds, password, | |
3929 | sasl, false, errp) < 0) { | |
3930 | goto fail; | |
3931 | } | |
3932 | ||
3933 | if (vnc_display_setup_auth(&vd->ws_auth, &vd->ws_subauth, | |
3934 | vd->tlscreds, password, | |
3935 | sasl, true, errp) < 0) { | |
3e305e4a DB |
3936 | goto fail; |
3937 | } | |
24236869 | 3938 | |
2f9606b3 AL |
3939 | #ifdef CONFIG_VNC_SASL |
3940 | if ((saslErr = sasl_server_init(NULL, "qemu")) != SASL_OK) { | |
2d55f0e8 PB |
3941 | error_setg(errp, "Failed to initialize SASL auth: %s", |
3942 | sasl_errstring(saslErr, NULL, NULL)); | |
1ce52c78 | 3943 | goto fail; |
2f9606b3 AL |
3944 | } |
3945 | #endif | |
bf01c179 | 3946 | vd->lock_key_sync = lock_key_sync; |
a54f0d2b PO |
3947 | if (lock_key_sync) { |
3948 | vd->led = qemu_add_led_event_handler(kbd_leds, vd); | |
3949 | } | |
3950 | vd->ledstate = 0; | |
bf01c179 | 3951 | vd->key_delay_ms = key_delay_ms; |
2f9606b3 | 3952 | |
1d0d59fe GH |
3953 | device_id = qemu_opt_get(opts, "display"); |
3954 | if (device_id) { | |
1d0d59fe | 3955 | int head = qemu_opt_get_number(opts, "head", 0); |
f2c1d54c | 3956 | Error *err = NULL; |
1d0d59fe | 3957 | |
f2c1d54c GH |
3958 | con = qemu_console_lookup_by_device_name(device_id, head, &err); |
3959 | if (err) { | |
3960 | error_propagate(errp, err); | |
1d0d59fe GH |
3961 | goto fail; |
3962 | } | |
3963 | } else { | |
3964 | con = NULL; | |
3965 | } | |
3966 | ||
bf01c179 DB |
3967 | if (con != vd->dcl.con) { |
3968 | unregister_displaychangelistener(&vd->dcl); | |
3969 | vd->dcl.con = con; | |
3970 | register_displaychangelistener(&vd->dcl); | |
1d0d59fe GH |
3971 | } |
3972 | ||
3aa3eea3 | 3973 | if (reverse) { |
396f935a | 3974 | if (vnc_display_connect(vd, saddr, nsaddr, wsaddr, nwsaddr, errp) < 0) { |
007fcd3e PB |
3975 | goto fail; |
3976 | } | |
9712ecaf | 3977 | } else { |
396f935a | 3978 | if (vnc_display_listen(vd, saddr, nsaddr, wsaddr, nwsaddr, errp) < 0) { |
e0d03b8c DB |
3979 | goto fail; |
3980 | } | |
24236869 | 3981 | } |
e0d03b8c | 3982 | |
275e0d61 | 3983 | if (qemu_opt_get(opts, "to")) { |
bf01c179 | 3984 | vnc_display_print_local_addr(vd); |
33df7bf3 PB |
3985 | } |
3986 | ||
396f935a DB |
3987 | cleanup: |
3988 | for (i = 0; i < nsaddr; i++) { | |
3989 | qapi_free_SocketAddress(saddr[i]); | |
3990 | } | |
3991 | for (i = 0; i < nwsaddr; i++) { | |
3992 | qapi_free_SocketAddress(wsaddr[i]); | |
3993 | } | |
2d55f0e8 | 3994 | return; |
1ce52c78 PB |
3995 | |
3996 | fail: | |
4ee74fa7 | 3997 | vnc_display_close(vd); |
396f935a | 3998 | goto cleanup; |
24236869 | 3999 | } |
13661089 | 4000 | |
14f7143e | 4001 | void vnc_display_add_client(const char *id, int csock, bool skipauth) |
13661089 | 4002 | { |
bf01c179 | 4003 | VncDisplay *vd = vnc_display_find(id); |
04d2529d | 4004 | QIOChannelSocket *sioc; |
13661089 | 4005 | |
bf01c179 | 4006 | if (!vd) { |
d616ccc5 GH |
4007 | return; |
4008 | } | |
04d2529d DB |
4009 | |
4010 | sioc = qio_channel_socket_new_fd(csock, NULL); | |
4011 | if (sioc) { | |
10bcfe58 | 4012 | qio_channel_set_name(QIO_CHANNEL(sioc), "vnc-server"); |
bf01c179 | 4013 | vnc_connect(vd, sioc, skipauth, false); |
04d2529d DB |
4014 | object_unref(OBJECT(sioc)); |
4015 | } | |
13661089 | 4016 | } |
4db14629 | 4017 | |
9634f4e3 | 4018 | static void vnc_auto_assign_id(QemuOptsList *olist, QemuOpts *opts) |
2779672f GA |
4019 | { |
4020 | int i = 2; | |
4021 | char *id; | |
4022 | ||
4023 | id = g_strdup("default"); | |
4024 | while (qemu_opts_find(olist, id)) { | |
4025 | g_free(id); | |
4026 | id = g_strdup_printf("vnc%d", i++); | |
4027 | } | |
4028 | qemu_opts_set_id(opts, id); | |
4029 | } | |
4030 | ||
70b94331 | 4031 | QemuOpts *vnc_parse(const char *str, Error **errp) |
4db14629 | 4032 | { |
4db14629 | 4033 | QemuOptsList *olist = qemu_find_opts("vnc"); |
70b94331 | 4034 | QemuOpts *opts = qemu_opts_parse(olist, str, true, errp); |
81607cbf | 4035 | const char *id; |
4db14629 | 4036 | |
81607cbf GA |
4037 | if (!opts) { |
4038 | return NULL; | |
4039 | } | |
4040 | ||
4041 | id = qemu_opts_id(opts); | |
4db14629 GH |
4042 | if (!id) { |
4043 | /* auto-assign id if not present */ | |
2779672f | 4044 | vnc_auto_assign_id(olist, opts); |
4db14629 | 4045 | } |
9634f4e3 GH |
4046 | return opts; |
4047 | } | |
4048 | ||
28d0de7a | 4049 | int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp) |
9634f4e3 GH |
4050 | { |
4051 | Error *local_err = NULL; | |
4052 | char *id = (char *)qemu_opts_id(opts); | |
4db14629 | 4053 | |
9634f4e3 | 4054 | assert(id); |
4db14629 GH |
4055 | vnc_display_init(id); |
4056 | vnc_display_open(id, &local_err); | |
4057 | if (local_err != NULL) { | |
c29b77f9 | 4058 | error_reportf_err(local_err, "Failed to start VNC server: "); |
4db14629 GH |
4059 | exit(1); |
4060 | } | |
4061 | return 0; | |
4062 | } | |
4063 | ||
4064 | static void vnc_register_config(void) | |
4065 | { | |
4066 | qemu_add_opts(&qemu_vnc_opts); | |
4067 | } | |
34294e2f | 4068 | opts_init(vnc_register_config); |