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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" |
13d4ff07 | 31 | #include "hw/qdev-core.h" |
9c17d615 | 32 | #include "sysemu/sysemu.h" |
7b5fa0b5 | 33 | #include "sysemu/runstate.h" |
d49b6836 | 34 | #include "qemu/error-report.h" |
db725815 | 35 | #include "qemu/main-loop.h" |
0b8fa32f | 36 | #include "qemu/module.h" |
922a01a0 | 37 | #include "qemu/option.h" |
1de7afc9 PB |
38 | #include "qemu/sockets.h" |
39 | #include "qemu/timer.h" | |
b76806d4 | 40 | #include "authz/list.h" |
4db14629 | 41 | #include "qemu/config-file.h" |
5d75648b MA |
42 | #include "qapi/qapi-emit-events.h" |
43 | #include "qapi/qapi-events-ui.h" | |
e688df6b | 44 | #include "qapi/error.h" |
9af23989 | 45 | #include "qapi/qapi-commands-ui.h" |
8d447d10 | 46 | #include "ui/input.h" |
8e9b0d24 | 47 | #include "crypto/hash.h" |
3c52bf0c | 48 | #include "crypto/tlscreds.h" |
3e305e4a DB |
49 | #include "crypto/tlscredsanon.h" |
50 | #include "crypto/tlscredsx509.h" | |
f7b2502c | 51 | #include "crypto/random.h" |
6c6840e9 | 52 | #include "crypto/secret_common.h" |
3e305e4a | 53 | #include "qom/object_interfaces.h" |
f348b6d1 | 54 | #include "qemu/cutils.h" |
653c9747 | 55 | #include "qemu/help_option.h" |
57a6d6d5 | 56 | #include "io/dns-resolver.h" |
756a98dd | 57 | #include "monitor/monitor.h" |
24236869 | 58 | |
0f7b2864 | 59 | #define VNC_REFRESH_INTERVAL_BASE GUI_REFRESH_INTERVAL_DEFAULT |
2430ffe4 | 60 | #define VNC_REFRESH_INTERVAL_INC 50 |
0f7b2864 | 61 | #define VNC_REFRESH_INTERVAL_MAX GUI_REFRESH_INTERVAL_IDLE |
999342a0 CC |
62 | static const struct timeval VNC_REFRESH_STATS = { 0, 500000 }; |
63 | static const struct timeval VNC_REFRESH_LOSSY = { 2, 0 }; | |
24236869 FB |
64 | |
65 | #include "vnc_keysym.h" | |
800567a6 | 66 | #include "crypto/cipher.h" |
70848515 | 67 | |
d616ccc5 GH |
68 | static QTAILQ_HEAD(, VncDisplay) vnc_displays = |
69 | QTAILQ_HEAD_INITIALIZER(vnc_displays); | |
a9ce8590 | 70 | |
d467b679 | 71 | static int vnc_cursor_define(VncState *vs); |
e2b72cb6 | 72 | static void vnc_update_throttle_offset(VncState *vs); |
d467b679 | 73 | |
8cf36489 GH |
74 | static void vnc_set_share_mode(VncState *vs, VncShareMode mode) |
75 | { | |
76 | #ifdef _VNC_DEBUG | |
77 | static const char *mn[] = { | |
78 | [0] = "undefined", | |
79 | [VNC_SHARE_MODE_CONNECTING] = "connecting", | |
80 | [VNC_SHARE_MODE_SHARED] = "shared", | |
81 | [VNC_SHARE_MODE_EXCLUSIVE] = "exclusive", | |
82 | [VNC_SHARE_MODE_DISCONNECTED] = "disconnected", | |
83 | }; | |
04d2529d DB |
84 | fprintf(stderr, "%s/%p: %s -> %s\n", __func__, |
85 | vs->ioc, mn[vs->share_mode], mn[mode]); | |
8cf36489 GH |
86 | #endif |
87 | ||
e5f34cdd GH |
88 | switch (vs->share_mode) { |
89 | case VNC_SHARE_MODE_CONNECTING: | |
90 | vs->vd->num_connecting--; | |
91 | break; | |
92 | case VNC_SHARE_MODE_SHARED: | |
93 | vs->vd->num_shared--; | |
94 | break; | |
95 | case VNC_SHARE_MODE_EXCLUSIVE: | |
8cf36489 | 96 | vs->vd->num_exclusive--; |
e5f34cdd GH |
97 | break; |
98 | default: | |
99 | break; | |
8cf36489 | 100 | } |
e5f34cdd | 101 | |
8cf36489 | 102 | vs->share_mode = mode; |
e5f34cdd GH |
103 | |
104 | switch (vs->share_mode) { | |
105 | case VNC_SHARE_MODE_CONNECTING: | |
106 | vs->vd->num_connecting++; | |
107 | break; | |
108 | case VNC_SHARE_MODE_SHARED: | |
109 | vs->vd->num_shared++; | |
110 | break; | |
111 | case VNC_SHARE_MODE_EXCLUSIVE: | |
8cf36489 | 112 | vs->vd->num_exclusive++; |
e5f34cdd GH |
113 | break; |
114 | default: | |
115 | break; | |
8cf36489 GH |
116 | } |
117 | } | |
118 | ||
1ff7df1a | 119 | |
bd269ebc | 120 | static void vnc_init_basic_info(SocketAddress *addr, |
98481bfc EB |
121 | VncBasicInfo *info, |
122 | Error **errp) | |
d96fd29c | 123 | { |
04d2529d | 124 | switch (addr->type) { |
bd269ebc MA |
125 | case SOCKET_ADDRESS_TYPE_INET: |
126 | info->host = g_strdup(addr->u.inet.host); | |
127 | info->service = g_strdup(addr->u.inet.port); | |
128 | if (addr->u.inet.ipv6) { | |
04d2529d DB |
129 | info->family = NETWORK_ADDRESS_FAMILY_IPV6; |
130 | } else { | |
131 | info->family = NETWORK_ADDRESS_FAMILY_IPV4; | |
132 | } | |
133 | break; | |
d96fd29c | 134 | |
bd269ebc | 135 | case SOCKET_ADDRESS_TYPE_UNIX: |
04d2529d | 136 | info->host = g_strdup(""); |
bd269ebc | 137 | info->service = g_strdup(addr->u.q_unix.path); |
04d2529d DB |
138 | info->family = NETWORK_ADDRESS_FAMILY_UNIX; |
139 | break; | |
140 | ||
bd269ebc MA |
141 | case SOCKET_ADDRESS_TYPE_VSOCK: |
142 | case SOCKET_ADDRESS_TYPE_FD: | |
a6c76285 | 143 | error_setg(errp, "Unsupported socket address type %s", |
977c736f | 144 | SocketAddressType_str(addr->type)); |
04d2529d | 145 | break; |
a6c76285 MA |
146 | default: |
147 | abort(); | |
d96fd29c LC |
148 | } |
149 | ||
04d2529d | 150 | return; |
d96fd29c LC |
151 | } |
152 | ||
04d2529d DB |
153 | static void vnc_init_basic_info_from_server_addr(QIOChannelSocket *ioc, |
154 | VncBasicInfo *info, | |
98481bfc | 155 | Error **errp) |
d96fd29c | 156 | { |
bd269ebc | 157 | SocketAddress *addr = NULL; |
d96fd29c | 158 | |
624cdd46 DB |
159 | if (!ioc) { |
160 | error_setg(errp, "No listener socket available"); | |
161 | return; | |
162 | } | |
163 | ||
04d2529d DB |
164 | addr = qio_channel_socket_get_local_address(ioc, errp); |
165 | if (!addr) { | |
98481bfc | 166 | return; |
d96fd29c LC |
167 | } |
168 | ||
04d2529d | 169 | vnc_init_basic_info(addr, info, errp); |
bd269ebc | 170 | qapi_free_SocketAddress(addr); |
d96fd29c LC |
171 | } |
172 | ||
04d2529d DB |
173 | static void vnc_init_basic_info_from_remote_addr(QIOChannelSocket *ioc, |
174 | VncBasicInfo *info, | |
98481bfc | 175 | Error **errp) |
d96fd29c | 176 | { |
bd269ebc | 177 | SocketAddress *addr = NULL; |
d96fd29c | 178 | |
04d2529d DB |
179 | addr = qio_channel_socket_get_remote_address(ioc, errp); |
180 | if (!addr) { | |
98481bfc | 181 | return; |
d96fd29c LC |
182 | } |
183 | ||
04d2529d | 184 | vnc_init_basic_info(addr, info, errp); |
bd269ebc | 185 | qapi_free_SocketAddress(addr); |
d96fd29c LC |
186 | } |
187 | ||
1ff7df1a AL |
188 | static const char *vnc_auth_name(VncDisplay *vd) { |
189 | switch (vd->auth) { | |
190 | case VNC_AUTH_INVALID: | |
191 | return "invalid"; | |
192 | case VNC_AUTH_NONE: | |
193 | return "none"; | |
194 | case VNC_AUTH_VNC: | |
195 | return "vnc"; | |
196 | case VNC_AUTH_RA2: | |
197 | return "ra2"; | |
198 | case VNC_AUTH_RA2NE: | |
199 | return "ra2ne"; | |
200 | case VNC_AUTH_TIGHT: | |
201 | return "tight"; | |
202 | case VNC_AUTH_ULTRA: | |
203 | return "ultra"; | |
204 | case VNC_AUTH_TLS: | |
205 | return "tls"; | |
206 | case VNC_AUTH_VENCRYPT: | |
1ff7df1a AL |
207 | switch (vd->subauth) { |
208 | case VNC_AUTH_VENCRYPT_PLAIN: | |
209 | return "vencrypt+plain"; | |
210 | case VNC_AUTH_VENCRYPT_TLSNONE: | |
211 | return "vencrypt+tls+none"; | |
212 | case VNC_AUTH_VENCRYPT_TLSVNC: | |
213 | return "vencrypt+tls+vnc"; | |
214 | case VNC_AUTH_VENCRYPT_TLSPLAIN: | |
215 | return "vencrypt+tls+plain"; | |
216 | case VNC_AUTH_VENCRYPT_X509NONE: | |
217 | return "vencrypt+x509+none"; | |
218 | case VNC_AUTH_VENCRYPT_X509VNC: | |
219 | return "vencrypt+x509+vnc"; | |
220 | case VNC_AUTH_VENCRYPT_X509PLAIN: | |
221 | return "vencrypt+x509+plain"; | |
28a76be8 AL |
222 | case VNC_AUTH_VENCRYPT_TLSSASL: |
223 | return "vencrypt+tls+sasl"; | |
224 | case VNC_AUTH_VENCRYPT_X509SASL: | |
225 | return "vencrypt+x509+sasl"; | |
1ff7df1a AL |
226 | default: |
227 | return "vencrypt"; | |
228 | } | |
2f9606b3 | 229 | case VNC_AUTH_SASL: |
28a76be8 | 230 | return "sasl"; |
1ff7df1a AL |
231 | } |
232 | return "unknown"; | |
233 | } | |
234 | ||
d616ccc5 | 235 | static VncServerInfo *vnc_server_info_get(VncDisplay *vd) |
a7789382 | 236 | { |
fb6ba0d5 | 237 | VncServerInfo *info; |
98481bfc | 238 | Error *err = NULL; |
a7789382 | 239 | |
13e1d0e7 | 240 | if (!vd->listener || !vd->listener->nsioc) { |
4ee74fa7 DB |
241 | return NULL; |
242 | } | |
243 | ||
3e7f136d | 244 | info = g_malloc0(sizeof(*info)); |
13e1d0e7 | 245 | vnc_init_basic_info_from_server_addr(vd->listener->sioc[0], |
ddf21908 | 246 | qapi_VncServerInfo_base(info), &err); |
d616ccc5 | 247 | info->auth = g_strdup(vnc_auth_name(vd)); |
98481bfc EB |
248 | if (err) { |
249 | qapi_free_VncServerInfo(info); | |
250 | info = NULL; | |
251 | error_free(err); | |
252 | } | |
fb6ba0d5 | 253 | return info; |
a7789382 LC |
254 | } |
255 | ||
4a80dba3 | 256 | static void vnc_client_cache_auth(VncState *client) |
1ff7df1a | 257 | { |
4a80dba3 LC |
258 | if (!client->info) { |
259 | return; | |
d96fd29c | 260 | } |
1263b7d6 | 261 | |
3e305e4a DB |
262 | if (client->tls) { |
263 | client->info->x509_dname = | |
264 | qcrypto_tls_session_get_peer_name(client->tls); | |
d96fd29c | 265 | } |
1263b7d6 AL |
266 | #ifdef CONFIG_VNC_SASL |
267 | if (client->sasl.conn && | |
d96fd29c | 268 | client->sasl.username) { |
fb6ba0d5 | 269 | client->info->sasl_username = g_strdup(client->sasl.username); |
d96fd29c | 270 | } |
1263b7d6 | 271 | #endif |
4a80dba3 | 272 | } |
d96fd29c | 273 | |
4a80dba3 LC |
274 | static void vnc_client_cache_addr(VncState *client) |
275 | { | |
98481bfc EB |
276 | Error *err = NULL; |
277 | ||
278 | client->info = g_malloc0(sizeof(*client->info)); | |
04d2529d | 279 | vnc_init_basic_info_from_remote_addr(client->sioc, |
ddf21908 | 280 | qapi_VncClientInfo_base(client->info), |
98481bfc | 281 | &err); |
e1b3d477 | 282 | client->info->websocket = client->websocket; |
98481bfc EB |
283 | if (err) { |
284 | qapi_free_VncClientInfo(client->info); | |
285 | client->info = NULL; | |
286 | error_free(err); | |
4a80dba3 | 287 | } |
1ff7df1a AL |
288 | } |
289 | ||
fb6ba0d5 | 290 | static void vnc_qmp_event(VncState *vs, QAPIEvent event) |
586153d9 | 291 | { |
fb6ba0d5 | 292 | VncServerInfo *si; |
586153d9 LC |
293 | |
294 | if (!vs->info) { | |
295 | return; | |
296 | } | |
297 | ||
d616ccc5 | 298 | si = vnc_server_info_get(vs->vd); |
fb6ba0d5 | 299 | if (!si) { |
586153d9 LC |
300 | return; |
301 | } | |
302 | ||
fb6ba0d5 WX |
303 | switch (event) { |
304 | case QAPI_EVENT_VNC_CONNECTED: | |
3ab72385 | 305 | qapi_event_send_vnc_connected(si, qapi_VncClientInfo_base(vs->info)); |
fb6ba0d5 WX |
306 | break; |
307 | case QAPI_EVENT_VNC_INITIALIZED: | |
3ab72385 | 308 | qapi_event_send_vnc_initialized(si, vs->info); |
fb6ba0d5 WX |
309 | break; |
310 | case QAPI_EVENT_VNC_DISCONNECTED: | |
3ab72385 | 311 | qapi_event_send_vnc_disconnected(si, vs->info); |
fb6ba0d5 WX |
312 | break; |
313 | default: | |
314 | break; | |
315 | } | |
586153d9 | 316 | |
fb6ba0d5 | 317 | qapi_free_VncServerInfo(si); |
586153d9 LC |
318 | } |
319 | ||
2b54aa87 | 320 | static VncClientInfo *qmp_query_vnc_client(const VncState *client) |
a9ce8590 | 321 | { |
2b54aa87 | 322 | VncClientInfo *info; |
04d2529d | 323 | Error *err = NULL; |
2b54aa87 | 324 | |
04d2529d | 325 | info = g_malloc0(sizeof(*info)); |
2b54aa87 | 326 | |
04d2529d DB |
327 | vnc_init_basic_info_from_remote_addr(client->sioc, |
328 | qapi_VncClientInfo_base(info), | |
329 | &err); | |
330 | if (err) { | |
331 | error_free(err); | |
332 | qapi_free_VncClientInfo(info); | |
2b54aa87 LC |
333 | return NULL; |
334 | } | |
d96fd29c | 335 | |
ddf21908 | 336 | info->websocket = client->websocket; |
d96fd29c | 337 | |
3e305e4a DB |
338 | if (client->tls) { |
339 | info->x509_dname = qcrypto_tls_session_get_peer_name(client->tls); | |
2b54aa87 | 340 | } |
d96fd29c | 341 | #ifdef CONFIG_VNC_SASL |
2b54aa87 | 342 | if (client->sasl.conn && client->sasl.username) { |
2b54aa87 | 343 | info->sasl_username = g_strdup(client->sasl.username); |
d96fd29c | 344 | } |
2b54aa87 | 345 | #endif |
1ff7df1a | 346 | |
2b54aa87 | 347 | return info; |
d96fd29c | 348 | } |
1ff7df1a | 349 | |
d616ccc5 GH |
350 | static VncDisplay *vnc_display_find(const char *id) |
351 | { | |
352 | VncDisplay *vd; | |
353 | ||
354 | if (id == NULL) { | |
355 | return QTAILQ_FIRST(&vnc_displays); | |
356 | } | |
357 | QTAILQ_FOREACH(vd, &vnc_displays, next) { | |
358 | if (strcmp(id, vd->id) == 0) { | |
359 | return vd; | |
360 | } | |
361 | } | |
362 | return NULL; | |
363 | } | |
364 | ||
2d29a436 GH |
365 | static VncClientInfoList *qmp_query_client_list(VncDisplay *vd) |
366 | { | |
54aa3de7 | 367 | VncClientInfoList *prev = NULL; |
2d29a436 GH |
368 | VncState *client; |
369 | ||
370 | QTAILQ_FOREACH(client, &vd->clients, next) { | |
54aa3de7 | 371 | QAPI_LIST_PREPEND(prev, qmp_query_vnc_client(client)); |
2d29a436 GH |
372 | } |
373 | return prev; | |
374 | } | |
375 | ||
2b54aa87 | 376 | VncInfo *qmp_query_vnc(Error **errp) |
d96fd29c | 377 | { |
2b54aa87 | 378 | VncInfo *info = g_malloc0(sizeof(*info)); |
d616ccc5 | 379 | VncDisplay *vd = vnc_display_find(NULL); |
bd269ebc | 380 | SocketAddress *addr = NULL; |
2b54aa87 | 381 | |
13e1d0e7 | 382 | if (vd == NULL || !vd->listener || !vd->listener->nsioc) { |
2b54aa87 | 383 | info->enabled = false; |
d96fd29c | 384 | } else { |
2b54aa87 LC |
385 | info->enabled = true; |
386 | ||
387 | /* for compatibility with the original command */ | |
388 | info->has_clients = true; | |
2d29a436 | 389 | info->clients = qmp_query_client_list(vd); |
d96fd29c | 390 | |
13e1d0e7 DB |
391 | addr = qio_channel_socket_get_local_address(vd->listener->sioc[0], |
392 | errp); | |
04d2529d | 393 | if (!addr) { |
2b54aa87 LC |
394 | goto out_error; |
395 | } | |
d96fd29c | 396 | |
04d2529d | 397 | switch (addr->type) { |
bd269ebc MA |
398 | case SOCKET_ADDRESS_TYPE_INET: |
399 | info->host = g_strdup(addr->u.inet.host); | |
400 | info->service = g_strdup(addr->u.inet.port); | |
401 | if (addr->u.inet.ipv6) { | |
04d2529d DB |
402 | info->family = NETWORK_ADDRESS_FAMILY_IPV6; |
403 | } else { | |
404 | info->family = NETWORK_ADDRESS_FAMILY_IPV4; | |
405 | } | |
406 | break; | |
407 | ||
bd269ebc | 408 | case SOCKET_ADDRESS_TYPE_UNIX: |
04d2529d | 409 | info->host = g_strdup(""); |
bd269ebc | 410 | info->service = g_strdup(addr->u.q_unix.path); |
04d2529d DB |
411 | info->family = NETWORK_ADDRESS_FAMILY_UNIX; |
412 | break; | |
413 | ||
bd269ebc MA |
414 | case SOCKET_ADDRESS_TYPE_VSOCK: |
415 | case SOCKET_ADDRESS_TYPE_FD: | |
a6c76285 | 416 | error_setg(errp, "Unsupported socket address type %s", |
977c736f | 417 | SocketAddressType_str(addr->type)); |
2b54aa87 | 418 | goto out_error; |
a6c76285 MA |
419 | default: |
420 | abort(); | |
1ff7df1a | 421 | } |
2b54aa87 | 422 | |
2b54aa87 | 423 | info->has_family = true; |
2b54aa87 | 424 | |
d616ccc5 | 425 | info->auth = g_strdup(vnc_auth_name(vd)); |
a9ce8590 | 426 | } |
2b54aa87 | 427 | |
bd269ebc | 428 | qapi_free_SocketAddress(addr); |
2b54aa87 LC |
429 | return info; |
430 | ||
431 | out_error: | |
bd269ebc | 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 | 449 | VncServerInfo2 *info; |
04d2529d | 450 | Error *err = NULL; |
bd269ebc | 451 | SocketAddress *addr; |
04d2529d | 452 | |
9261ef5e | 453 | addr = qio_channel_socket_get_local_address(ioc, NULL); |
04d2529d | 454 | if (!addr) { |
df887684 GH |
455 | return prev; |
456 | } | |
457 | ||
2a7e6857 DB |
458 | info = g_new0(VncServerInfo2, 1); |
459 | vnc_init_basic_info(addr, qapi_VncServerInfo2_base(info), &err); | |
bd269ebc | 460 | qapi_free_SocketAddress(addr); |
04d2529d | 461 | if (err) { |
2a7e6857 | 462 | qapi_free_VncServerInfo2(info); |
04d2529d DB |
463 | error_free(err); |
464 | return prev; | |
465 | } | |
4478aa76 | 466 | info->websocket = websocket; |
df887684 | 467 | |
2a7e6857 DB |
468 | qmp_query_auth(auth, subauth, &info->auth, |
469 | &info->vencrypt, &info->has_vencrypt); | |
470 | ||
54aa3de7 EB |
471 | QAPI_LIST_PREPEND(prev, info); |
472 | return prev; | |
df887684 GH |
473 | } |
474 | ||
2a7e6857 DB |
475 | static void qmp_query_auth(int auth, int subauth, |
476 | VncPrimaryAuth *qmp_auth, | |
477 | VncVencryptSubAuth *qmp_vencrypt, | |
478 | bool *qmp_has_vencrypt) | |
df887684 | 479 | { |
2a7e6857 | 480 | switch (auth) { |
df887684 | 481 | case VNC_AUTH_VNC: |
2a7e6857 | 482 | *qmp_auth = VNC_PRIMARY_AUTH_VNC; |
df887684 GH |
483 | break; |
484 | case VNC_AUTH_RA2: | |
2a7e6857 | 485 | *qmp_auth = VNC_PRIMARY_AUTH_RA2; |
df887684 GH |
486 | break; |
487 | case VNC_AUTH_RA2NE: | |
2a7e6857 | 488 | *qmp_auth = VNC_PRIMARY_AUTH_RA2NE; |
df887684 GH |
489 | break; |
490 | case VNC_AUTH_TIGHT: | |
2a7e6857 | 491 | *qmp_auth = VNC_PRIMARY_AUTH_TIGHT; |
df887684 GH |
492 | break; |
493 | case VNC_AUTH_ULTRA: | |
2a7e6857 | 494 | *qmp_auth = VNC_PRIMARY_AUTH_ULTRA; |
df887684 GH |
495 | break; |
496 | case VNC_AUTH_TLS: | |
2a7e6857 | 497 | *qmp_auth = VNC_PRIMARY_AUTH_TLS; |
df887684 GH |
498 | break; |
499 | case VNC_AUTH_VENCRYPT: | |
2a7e6857 DB |
500 | *qmp_auth = VNC_PRIMARY_AUTH_VENCRYPT; |
501 | *qmp_has_vencrypt = true; | |
502 | switch (subauth) { | |
df887684 | 503 | case VNC_AUTH_VENCRYPT_PLAIN: |
2a7e6857 | 504 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_PLAIN; |
df887684 GH |
505 | break; |
506 | case VNC_AUTH_VENCRYPT_TLSNONE: | |
2a7e6857 | 507 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_NONE; |
df887684 GH |
508 | break; |
509 | case VNC_AUTH_VENCRYPT_TLSVNC: | |
2a7e6857 | 510 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_VNC; |
df887684 GH |
511 | break; |
512 | case VNC_AUTH_VENCRYPT_TLSPLAIN: | |
2a7e6857 | 513 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_PLAIN; |
df887684 GH |
514 | break; |
515 | case VNC_AUTH_VENCRYPT_X509NONE: | |
2a7e6857 | 516 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_NONE; |
df887684 GH |
517 | break; |
518 | case VNC_AUTH_VENCRYPT_X509VNC: | |
2a7e6857 | 519 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_VNC; |
df887684 GH |
520 | break; |
521 | case VNC_AUTH_VENCRYPT_X509PLAIN: | |
2a7e6857 | 522 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_PLAIN; |
df887684 GH |
523 | break; |
524 | case VNC_AUTH_VENCRYPT_TLSSASL: | |
2a7e6857 | 525 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_SASL; |
df887684 GH |
526 | break; |
527 | case VNC_AUTH_VENCRYPT_X509SASL: | |
2a7e6857 | 528 | *qmp_vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_SASL; |
df887684 GH |
529 | break; |
530 | default: | |
2a7e6857 | 531 | *qmp_has_vencrypt = false; |
df887684 GH |
532 | break; |
533 | } | |
df887684 GH |
534 | break; |
535 | case VNC_AUTH_SASL: | |
2a7e6857 | 536 | *qmp_auth = VNC_PRIMARY_AUTH_SASL; |
df887684 GH |
537 | break; |
538 | case VNC_AUTH_NONE: | |
539 | default: | |
2a7e6857 | 540 | *qmp_auth = VNC_PRIMARY_AUTH_NONE; |
df887684 GH |
541 | break; |
542 | } | |
543 | } | |
544 | ||
545 | VncInfo2List *qmp_query_vnc_servers(Error **errp) | |
546 | { | |
54aa3de7 | 547 | VncInfo2List *prev = NULL; |
df887684 GH |
548 | VncInfo2 *info; |
549 | VncDisplay *vd; | |
550 | DeviceState *dev; | |
4ee74fa7 | 551 | size_t i; |
df887684 GH |
552 | |
553 | QTAILQ_FOREACH(vd, &vnc_displays, next) { | |
554 | info = g_new0(VncInfo2, 1); | |
555 | info->id = g_strdup(vd->id); | |
556 | info->clients = qmp_query_client_list(vd); | |
2a7e6857 DB |
557 | qmp_query_auth(vd->auth, vd->subauth, &info->auth, |
558 | &info->vencrypt, &info->has_vencrypt); | |
df887684 GH |
559 | if (vd->dcl.con) { |
560 | dev = DEVICE(object_property_get_link(OBJECT(vd->dcl.con), | |
552d7f49 | 561 | "device", &error_abort)); |
df887684 GH |
562 | info->display = g_strdup(dev->id); |
563 | } | |
13e1d0e7 | 564 | for (i = 0; vd->listener != NULL && i < vd->listener->nsioc; i++) { |
04d2529d | 565 | info->server = qmp_query_server_entry( |
13e1d0e7 DB |
566 | vd->listener->sioc[i], false, vd->auth, vd->subauth, |
567 | info->server); | |
df887684 | 568 | } |
13e1d0e7 | 569 | for (i = 0; vd->wslistener != NULL && i < vd->wslistener->nsioc; i++) { |
04d2529d | 570 | info->server = qmp_query_server_entry( |
13e1d0e7 | 571 | vd->wslistener->sioc[i], true, vd->ws_auth, |
4ee74fa7 | 572 | vd->ws_subauth, info->server); |
df887684 | 573 | } |
df887684 | 574 | |
54aa3de7 | 575 | QAPI_LIST_PREPEND(prev, info); |
df887684 GH |
576 | } |
577 | return prev; | |
578 | } | |
579 | ||
1f08e341 ZC |
580 | bool vnc_display_reload_certs(const char *id, Error **errp) |
581 | { | |
582 | VncDisplay *vd = vnc_display_find(id); | |
583 | QCryptoTLSCredsClass *creds = NULL; | |
584 | ||
585 | if (!vd) { | |
586 | error_setg(errp, "Can not find vnc display"); | |
587 | return false; | |
588 | } | |
589 | ||
590 | if (!vd->tlscreds) { | |
4087ecb8 | 591 | error_setg(errp, "vnc tls is not enabled"); |
1f08e341 ZC |
592 | return false; |
593 | } | |
594 | ||
595 | creds = QCRYPTO_TLS_CREDS_GET_CLASS(OBJECT(vd->tlscreds)); | |
596 | if (creds->reload == NULL) { | |
597 | error_setg(errp, "%s doesn't support to reload TLS credential", | |
598 | object_get_typename(OBJECT(vd->tlscreds))); | |
599 | return false; | |
600 | } | |
601 | if (!creds->reload(vd->tlscreds, errp)) { | |
602 | return false; | |
603 | } | |
604 | ||
605 | return true; | |
606 | } | |
607 | ||
24236869 FB |
608 | /* TODO |
609 | 1) Get the queue working for IO. | |
610 | 2) there is some weirdness when using the -S option (the screen is grey | |
611 | and not totally invalidated | |
612 | 3) resolutions > 1024 | |
613 | */ | |
614 | ||
6af998db | 615 | static int vnc_update_client(VncState *vs, int has_dirty); |
198a0039 | 616 | static void vnc_disconnect_start(VncState *vs); |
24236869 | 617 | |
753b4053 | 618 | static void vnc_colordepth(VncState *vs); |
1fc62412 SS |
619 | static void framebuffer_update_request(VncState *vs, int incremental, |
620 | int x_position, int y_position, | |
621 | int w, int h); | |
0f7b2864 | 622 | static void vnc_refresh(DisplayChangeListener *dcl); |
1fc62412 | 623 | static int vnc_refresh_server_surface(VncDisplay *vd); |
7eac3a87 | 624 | |
d05959c2 GH |
625 | static int vnc_width(VncDisplay *vd) |
626 | { | |
627 | return MIN(VNC_MAX_WIDTH, ROUND_UP(surface_width(vd->ds), | |
628 | VNC_DIRTY_PIXELS_PER_BIT)); | |
629 | } | |
630 | ||
69cc8db4 DB |
631 | static int vnc_true_width(VncDisplay *vd) |
632 | { | |
633 | return MIN(VNC_MAX_WIDTH, surface_width(vd->ds)); | |
634 | } | |
635 | ||
d05959c2 GH |
636 | static int vnc_height(VncDisplay *vd) |
637 | { | |
638 | return MIN(VNC_MAX_HEIGHT, surface_height(vd->ds)); | |
639 | } | |
640 | ||
bea60dd7 PL |
641 | static void vnc_set_area_dirty(DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT], |
642 | VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT), | |
f7b3d68c GH |
643 | VncDisplay *vd, |
644 | int x, int y, int w, int h) | |
645 | { | |
646 | int width = vnc_width(vd); | |
647 | int height = vnc_height(vd); | |
648 | ||
91937225 PL |
649 | /* this is needed this to ensure we updated all affected |
650 | * blocks if x % VNC_DIRTY_PIXELS_PER_BIT != 0 */ | |
b4c85ddc PL |
651 | w += (x % VNC_DIRTY_PIXELS_PER_BIT); |
652 | x -= (x % VNC_DIRTY_PIXELS_PER_BIT); | |
0486e8a7 | 653 | |
9f64916d GH |
654 | x = MIN(x, width); |
655 | y = MIN(y, height); | |
656 | w = MIN(x + w, width) - x; | |
91937225 | 657 | h = MIN(y + h, height); |
788abf8e | 658 | |
b4c85ddc | 659 | for (; y < h; y++) { |
bea60dd7 | 660 | bitmap_set(dirty[y], x / VNC_DIRTY_PIXELS_PER_BIT, |
91937225 | 661 | DIV_ROUND_UP(w, VNC_DIRTY_PIXELS_PER_BIT)); |
b4c85ddc | 662 | } |
24236869 FB |
663 | } |
664 | ||
bea60dd7 PL |
665 | static void vnc_dpy_update(DisplayChangeListener *dcl, |
666 | int x, int y, int w, int h) | |
667 | { | |
668 | VncDisplay *vd = container_of(dcl, VncDisplay, dcl); | |
669 | struct VncSurface *s = &vd->guest; | |
bea60dd7 | 670 | |
f7b3d68c | 671 | vnc_set_area_dirty(s->dirty, vd, x, y, w, h); |
bea60dd7 PL |
672 | } |
673 | ||
70a4568f CC |
674 | void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, |
675 | int32_t encoding) | |
24236869 FB |
676 | { |
677 | vnc_write_u16(vs, x); | |
678 | vnc_write_u16(vs, y); | |
679 | vnc_write_u16(vs, w); | |
680 | vnc_write_u16(vs, h); | |
681 | ||
682 | vnc_write_s32(vs, encoding); | |
683 | } | |
684 | ||
763deea7 GH |
685 | static void vnc_desktop_resize_ext(VncState *vs, int reject_reason) |
686 | { | |
adc8fce8 DB |
687 | trace_vnc_msg_server_ext_desktop_resize( |
688 | vs, vs->ioc, vs->client_width, vs->client_height, reject_reason); | |
689 | ||
763deea7 GH |
690 | vnc_lock_output(vs); |
691 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); | |
692 | vnc_write_u8(vs, 0); | |
693 | vnc_write_u16(vs, 1); /* number of rects */ | |
694 | vnc_framebuffer_update(vs, | |
695 | reject_reason ? 1 : 0, | |
696 | reject_reason, | |
697 | vs->client_width, vs->client_height, | |
698 | VNC_ENCODING_DESKTOP_RESIZE_EXT); | |
699 | vnc_write_u8(vs, 1); /* number of screens */ | |
700 | vnc_write_u8(vs, 0); /* padding */ | |
701 | vnc_write_u8(vs, 0); /* padding */ | |
702 | vnc_write_u8(vs, 0); /* padding */ | |
703 | vnc_write_u32(vs, 0); /* screen id */ | |
704 | vnc_write_u16(vs, 0); /* screen x-pos */ | |
705 | vnc_write_u16(vs, 0); /* screen y-pos */ | |
706 | vnc_write_u16(vs, vs->client_width); | |
707 | vnc_write_u16(vs, vs->client_height); | |
708 | vnc_write_u32(vs, 0); /* screen flags */ | |
709 | vnc_unlock_output(vs); | |
710 | vnc_flush(vs); | |
711 | } | |
32ed2680 | 712 | |
621aaeb9 GH |
713 | static void vnc_desktop_resize(VncState *vs) |
714 | { | |
763deea7 GH |
715 | if (vs->ioc == NULL || (!vnc_has_feature(vs, VNC_FEATURE_RESIZE) && |
716 | !vnc_has_feature(vs, VNC_FEATURE_RESIZE_EXT))) { | |
621aaeb9 GH |
717 | return; |
718 | } | |
69cc8db4 | 719 | if (vs->client_width == vs->vd->true_width && |
d239726c GH |
720 | vs->client_height == pixman_image_get_height(vs->vd->server)) { |
721 | return; | |
722 | } | |
4c956bd8 | 723 | |
69cc8db4 DB |
724 | assert(vs->vd->true_width < 65536 && |
725 | vs->vd->true_width >= 0); | |
4c956bd8 DB |
726 | assert(pixman_image_get_height(vs->vd->server) < 65536 && |
727 | pixman_image_get_height(vs->vd->server) >= 0); | |
69cc8db4 | 728 | vs->client_width = vs->vd->true_width; |
bea60dd7 | 729 | vs->client_height = pixman_image_get_height(vs->vd->server); |
763deea7 GH |
730 | |
731 | if (vnc_has_feature(vs, VNC_FEATURE_RESIZE_EXT)) { | |
732 | vnc_desktop_resize_ext(vs, 0); | |
733 | return; | |
734 | } | |
735 | ||
adc8fce8 DB |
736 | trace_vnc_msg_server_desktop_resize( |
737 | vs, vs->ioc, vs->client_width, vs->client_height); | |
738 | ||
bd023f95 | 739 | vnc_lock_output(vs); |
621aaeb9 GH |
740 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
741 | vnc_write_u8(vs, 0); | |
742 | vnc_write_u16(vs, 1); /* number of rects */ | |
5862d195 | 743 | vnc_framebuffer_update(vs, 0, 0, vs->client_width, vs->client_height, |
621aaeb9 | 744 | VNC_ENCODING_DESKTOPRESIZE); |
bd023f95 | 745 | vnc_unlock_output(vs); |
621aaeb9 GH |
746 | vnc_flush(vs); |
747 | } | |
748 | ||
bd023f95 CC |
749 | static void vnc_abort_display_jobs(VncDisplay *vd) |
750 | { | |
751 | VncState *vs; | |
752 | ||
753 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
754 | vnc_lock_output(vs); | |
755 | vs->abort = true; | |
756 | vnc_unlock_output(vs); | |
757 | } | |
758 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
759 | vnc_jobs_join(vs); | |
760 | } | |
761 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
762 | vnc_lock_output(vs); | |
bbcdeb62 GH |
763 | if (vs->update == VNC_STATE_UPDATE_NONE && |
764 | vs->job_update != VNC_STATE_UPDATE_NONE) { | |
765 | /* job aborted before completion */ | |
766 | vs->update = vs->job_update; | |
767 | vs->job_update = VNC_STATE_UPDATE_NONE; | |
768 | } | |
bd023f95 CC |
769 | vs->abort = false; |
770 | vnc_unlock_output(vs); | |
771 | } | |
772 | } | |
bd023f95 | 773 | |
9f64916d GH |
774 | int vnc_server_fb_stride(VncDisplay *vd) |
775 | { | |
776 | return pixman_image_get_stride(vd->server); | |
777 | } | |
778 | ||
779 | void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y) | |
780 | { | |
781 | uint8_t *ptr; | |
782 | ||
783 | ptr = (uint8_t *)pixman_image_get_data(vd->server); | |
784 | ptr += y * vnc_server_fb_stride(vd); | |
785 | ptr += x * VNC_SERVER_FB_BYTES; | |
786 | return ptr; | |
787 | } | |
788 | ||
453f842b GH |
789 | static void vnc_update_server_surface(VncDisplay *vd) |
790 | { | |
b69a553b DB |
791 | int width, height; |
792 | ||
453f842b GH |
793 | qemu_pixman_image_unref(vd->server); |
794 | vd->server = NULL; | |
795 | ||
c7628bff GH |
796 | if (QTAILQ_EMPTY(&vd->clients)) { |
797 | return; | |
798 | } | |
799 | ||
b69a553b DB |
800 | width = vnc_width(vd); |
801 | height = vnc_height(vd); | |
69cc8db4 | 802 | vd->true_width = vnc_true_width(vd); |
453f842b | 803 | vd->server = pixman_image_create_bits(VNC_SERVER_FB_FORMAT, |
b69a553b | 804 | width, height, |
453f842b | 805 | NULL, 0); |
b69a553b DB |
806 | |
807 | memset(vd->guest.dirty, 0x00, sizeof(vd->guest.dirty)); | |
808 | vnc_set_area_dirty(vd->guest.dirty, vd, 0, 0, | |
809 | width, height); | |
453f842b GH |
810 | } |
811 | ||
61e77a5f GH |
812 | static bool vnc_check_pageflip(DisplaySurface *s1, |
813 | DisplaySurface *s2) | |
814 | { | |
815 | return (s1 != NULL && | |
816 | s2 != NULL && | |
817 | surface_width(s1) == surface_width(s2) && | |
818 | surface_height(s1) == surface_height(s2) && | |
819 | surface_format(s1) == surface_format(s2)); | |
820 | ||
821 | } | |
822 | ||
c12aeb86 | 823 | static void vnc_dpy_switch(DisplayChangeListener *dcl, |
c12aeb86 | 824 | DisplaySurface *surface) |
24236869 | 825 | { |
21ef45d7 | 826 | VncDisplay *vd = container_of(dcl, VncDisplay, dcl); |
61e77a5f | 827 | bool pageflip = vnc_check_pageflip(vd->ds, surface); |
41b4bef6 | 828 | VncState *vs; |
1fc62412 | 829 | |
bd023f95 | 830 | vnc_abort_display_jobs(vd); |
453f842b | 831 | vd->ds = surface; |
bd023f95 | 832 | |
6baebed7 | 833 | /* guest surface */ |
9f64916d | 834 | qemu_pixman_image_unref(vd->guest.fb); |
d39fa6d8 GH |
835 | vd->guest.fb = pixman_image_ref(surface->image); |
836 | vd->guest.format = surface->format; | |
24236869 | 837 | |
69cc8db4 | 838 | |
61e77a5f | 839 | if (pageflip) { |
69cc8db4 DB |
840 | trace_vnc_server_dpy_pageflip(vd, |
841 | surface_width(surface), | |
842 | surface_height(surface), | |
843 | surface_format(surface)); | |
61e77a5f GH |
844 | vnc_set_area_dirty(vd->guest.dirty, vd, 0, 0, |
845 | surface_width(surface), | |
846 | surface_height(surface)); | |
847 | return; | |
848 | } | |
849 | ||
69cc8db4 DB |
850 | trace_vnc_server_dpy_recreate(vd, |
851 | surface_width(surface), | |
852 | surface_height(surface), | |
853 | surface_format(surface)); | |
61e77a5f GH |
854 | /* server surface */ |
855 | vnc_update_server_surface(vd); | |
856 | ||
41b4bef6 | 857 | QTAILQ_FOREACH(vs, &vd->clients, next) { |
1fc62412 | 858 | vnc_colordepth(vs); |
1d4b638a | 859 | vnc_desktop_resize(vs); |
b3c2de9c | 860 | vnc_cursor_define(vs); |
bea60dd7 | 861 | memset(vs->dirty, 0x00, sizeof(vs->dirty)); |
f7b3d68c | 862 | vnc_set_area_dirty(vs->dirty, vd, 0, 0, |
b69a553b DB |
863 | vnc_width(vd), |
864 | vnc_height(vd)); | |
e2b72cb6 | 865 | vnc_update_throttle_offset(vs); |
753b4053 AL |
866 | } |
867 | } | |
868 | ||
3512779a | 869 | /* fastest code */ |
9f64916d | 870 | static void vnc_write_pixels_copy(VncState *vs, |
d467b679 | 871 | void *pixels, int size) |
3512779a FB |
872 | { |
873 | vnc_write(vs, pixels, size); | |
874 | } | |
875 | ||
876 | /* slowest but generic code. */ | |
70a4568f | 877 | void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v) |
3512779a | 878 | { |
7eac3a87 | 879 | uint8_t r, g, b; |
1fc62412 | 880 | |
9f64916d GH |
881 | #if VNC_SERVER_FB_FORMAT == PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8) |
882 | r = (((v & 0x00ff0000) >> 16) << vs->client_pf.rbits) >> 8; | |
883 | g = (((v & 0x0000ff00) >> 8) << vs->client_pf.gbits) >> 8; | |
884 | b = (((v & 0x000000ff) >> 0) << vs->client_pf.bbits) >> 8; | |
885 | #else | |
886 | # error need some bits here if you change VNC_SERVER_FB_FORMAT | |
887 | #endif | |
888 | v = (r << vs->client_pf.rshift) | | |
889 | (g << vs->client_pf.gshift) | | |
890 | (b << vs->client_pf.bshift); | |
891 | switch (vs->client_pf.bytes_per_pixel) { | |
3512779a FB |
892 | case 1: |
893 | buf[0] = v; | |
894 | break; | |
895 | case 2: | |
9f64916d | 896 | if (vs->client_be) { |
3512779a FB |
897 | buf[0] = v >> 8; |
898 | buf[1] = v; | |
899 | } else { | |
900 | buf[1] = v >> 8; | |
901 | buf[0] = v; | |
902 | } | |
903 | break; | |
904 | default: | |
905 | case 4: | |
9f64916d | 906 | if (vs->client_be) { |
3512779a FB |
907 | buf[0] = v >> 24; |
908 | buf[1] = v >> 16; | |
909 | buf[2] = v >> 8; | |
910 | buf[3] = v; | |
911 | } else { | |
912 | buf[3] = v >> 24; | |
913 | buf[2] = v >> 16; | |
914 | buf[1] = v >> 8; | |
915 | buf[0] = v; | |
916 | } | |
917 | break; | |
918 | } | |
919 | } | |
920 | ||
9f64916d | 921 | static void vnc_write_pixels_generic(VncState *vs, |
d467b679 | 922 | void *pixels1, int size) |
3512779a | 923 | { |
3512779a | 924 | uint8_t buf[4]; |
3512779a | 925 | |
9f64916d | 926 | if (VNC_SERVER_FB_BYTES == 4) { |
7eac3a87 AL |
927 | uint32_t *pixels = pixels1; |
928 | int n, i; | |
929 | n = size >> 2; | |
9f64916d | 930 | for (i = 0; i < n; i++) { |
7eac3a87 | 931 | vnc_convert_pixel(vs, buf, pixels[i]); |
9f64916d | 932 | vnc_write(vs, buf, vs->client_pf.bytes_per_pixel); |
7eac3a87 | 933 | } |
3512779a FB |
934 | } |
935 | } | |
936 | ||
a885211e | 937 | int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h) |
24236869 FB |
938 | { |
939 | int i; | |
60fe76f3 | 940 | uint8_t *row; |
1fc62412 | 941 | VncDisplay *vd = vs->vd; |
24236869 | 942 | |
9f64916d | 943 | row = vnc_server_fb_ptr(vd, x, y); |
24236869 | 944 | for (i = 0; i < h; i++) { |
9f64916d GH |
945 | vs->write_pixels(vs, row, w * VNC_SERVER_FB_BYTES); |
946 | row += vnc_server_fb_stride(vd); | |
24236869 | 947 | } |
a885211e | 948 | return 1; |
24236869 FB |
949 | } |
950 | ||
bd023f95 | 951 | int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h) |
24236869 | 952 | { |
a885211e CC |
953 | int n = 0; |
954 | ||
fb437313 | 955 | switch(vs->vnc_encoding) { |
28a76be8 | 956 | case VNC_ENCODING_ZLIB: |
a885211e | 957 | n = vnc_zlib_send_framebuffer_update(vs, x, y, w, h); |
28a76be8 AL |
958 | break; |
959 | case VNC_ENCODING_HEXTILE: | |
960 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_HEXTILE); | |
a885211e | 961 | n = vnc_hextile_send_framebuffer_update(vs, x, y, w, h); |
28a76be8 | 962 | break; |
380282b0 CC |
963 | case VNC_ENCODING_TIGHT: |
964 | n = vnc_tight_send_framebuffer_update(vs, x, y, w, h); | |
965 | break; | |
efe556ad CC |
966 | case VNC_ENCODING_TIGHT_PNG: |
967 | n = vnc_tight_png_send_framebuffer_update(vs, x, y, w, h); | |
968 | break; | |
148954fa CC |
969 | case VNC_ENCODING_ZRLE: |
970 | n = vnc_zrle_send_framebuffer_update(vs, x, y, w, h); | |
971 | break; | |
972 | case VNC_ENCODING_ZYWRLE: | |
973 | n = vnc_zywrle_send_framebuffer_update(vs, x, y, w, h); | |
974 | break; | |
28a76be8 | 975 | default: |
0780ec7b GH |
976 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW); |
977 | n = vnc_raw_send_framebuffer_update(vs, x, y, w, h); | |
28a76be8 | 978 | break; |
fb437313 | 979 | } |
a885211e | 980 | return n; |
24236869 FB |
981 | } |
982 | ||
7c20b4a3 | 983 | static void vnc_mouse_set(DisplayChangeListener *dcl, |
7c20b4a3 | 984 | int x, int y, int visible) |
d467b679 GH |
985 | { |
986 | /* can we ask the client(s) to move the pointer ??? */ | |
987 | } | |
988 | ||
989 | static int vnc_cursor_define(VncState *vs) | |
990 | { | |
385ac97f | 991 | QEMUCursor *c = qemu_console_get_cursor(vs->vd->dcl.con); |
d467b679 GH |
992 | int isize; |
993 | ||
385ac97f | 994 | if (!c) { |
b3c2de9c GH |
995 | return -1; |
996 | } | |
997 | ||
074a86d0 GH |
998 | if (vnc_has_feature(vs, VNC_FEATURE_ALPHA_CURSOR)) { |
999 | vnc_lock_output(vs); | |
1000 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); | |
1001 | vnc_write_u8(vs, 0); /* padding */ | |
1002 | vnc_write_u16(vs, 1); /* # of rects */ | |
1003 | vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height, | |
1004 | VNC_ENCODING_ALPHA_CURSOR); | |
1005 | vnc_write_s32(vs, VNC_ENCODING_RAW); | |
1006 | vnc_write(vs, c->data, c->width * c->height * 4); | |
1007 | vnc_unlock_output(vs); | |
1008 | return 0; | |
1009 | } | |
d467b679 | 1010 | if (vnc_has_feature(vs, VNC_FEATURE_RICH_CURSOR)) { |
d01f9595 | 1011 | vnc_lock_output(vs); |
d467b679 GH |
1012 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
1013 | vnc_write_u8(vs, 0); /* padding */ | |
1014 | vnc_write_u16(vs, 1); /* # of rects */ | |
1015 | vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height, | |
1016 | VNC_ENCODING_RICH_CURSOR); | |
9f64916d GH |
1017 | isize = c->width * c->height * vs->client_pf.bytes_per_pixel; |
1018 | vnc_write_pixels_generic(vs, c->data, isize); | |
d467b679 | 1019 | vnc_write(vs, vs->vd->cursor_mask, vs->vd->cursor_msize); |
d01f9595 | 1020 | vnc_unlock_output(vs); |
d467b679 GH |
1021 | return 0; |
1022 | } | |
1023 | return -1; | |
1024 | } | |
1025 | ||
7c20b4a3 | 1026 | static void vnc_dpy_cursor_define(DisplayChangeListener *dcl, |
7c20b4a3 | 1027 | QEMUCursor *c) |
d467b679 | 1028 | { |
d616ccc5 | 1029 | VncDisplay *vd = container_of(dcl, VncDisplay, dcl); |
d467b679 GH |
1030 | VncState *vs; |
1031 | ||
7267c094 | 1032 | g_free(vd->cursor_mask); |
d467b679 | 1033 | vd->cursor_msize = cursor_get_mono_bpl(c) * c->height; |
7267c094 | 1034 | vd->cursor_mask = g_malloc0(vd->cursor_msize); |
d467b679 GH |
1035 | cursor_get_mono_mask(c, 0, vd->cursor_mask); |
1036 | ||
1037 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
1038 | vnc_cursor_define(vs); | |
1039 | } | |
1040 | } | |
1041 | ||
4769a881 | 1042 | static int find_and_clear_dirty_height(VncState *vs, |
6c71a539 | 1043 | int y, int last_x, int x, int height) |
24236869 FB |
1044 | { |
1045 | int h; | |
1046 | ||
6c71a539 | 1047 | for (h = 1; h < (height - y); h++) { |
bc2429b9 | 1048 | if (!test_bit(last_x, vs->dirty[y + h])) { |
28a76be8 | 1049 | break; |
bc2429b9 | 1050 | } |
863d7c91 | 1051 | bitmap_clear(vs->dirty[y + h], last_x, x - last_x); |
24236869 FB |
1052 | } |
1053 | ||
1054 | return h; | |
1055 | } | |
1056 | ||
e2b72cb6 DB |
1057 | /* |
1058 | * Figure out how much pending data we should allow in the output | |
1059 | * buffer before we throttle incremental display updates, and/or | |
1060 | * drop audio samples. | |
1061 | * | |
1062 | * We allow for equiv of 1 full display's worth of FB updates, | |
1063 | * and 1 second of audio samples. If audio backlog was larger | |
1064 | * than that the client would already suffering awful audio | |
1065 | * glitches, so dropping samples is no worse really). | |
1066 | */ | |
1067 | static void vnc_update_throttle_offset(VncState *vs) | |
1068 | { | |
1069 | size_t offset = | |
1070 | vs->client_width * vs->client_height * vs->client_pf.bytes_per_pixel; | |
1071 | ||
1072 | if (vs->audio_cap) { | |
e2b72cb6 | 1073 | int bps; |
e2b72cb6 DB |
1074 | switch (vs->as.fmt) { |
1075 | default: | |
85bc5852 KZ |
1076 | case AUDIO_FORMAT_U8: |
1077 | case AUDIO_FORMAT_S8: | |
e2b72cb6 DB |
1078 | bps = 1; |
1079 | break; | |
85bc5852 KZ |
1080 | case AUDIO_FORMAT_U16: |
1081 | case AUDIO_FORMAT_S16: | |
e2b72cb6 DB |
1082 | bps = 2; |
1083 | break; | |
85bc5852 KZ |
1084 | case AUDIO_FORMAT_U32: |
1085 | case AUDIO_FORMAT_S32: | |
e2b72cb6 DB |
1086 | bps = 4; |
1087 | break; | |
1088 | } | |
cf070658 | 1089 | offset += vs->as.freq * bps * vs->as.nchannels; |
e2b72cb6 DB |
1090 | } |
1091 | ||
1092 | /* Put a floor of 1MB on offset, so that if we have a large pending | |
1093 | * buffer and the display is resized to a small size & back again | |
1094 | * we don't suddenly apply a tiny send limit | |
1095 | */ | |
1096 | offset = MAX(offset, 1024 * 1024); | |
1097 | ||
6aa22a29 DB |
1098 | if (vs->throttle_output_offset != offset) { |
1099 | trace_vnc_client_throttle_threshold( | |
1100 | vs, vs->ioc, vs->throttle_output_offset, offset, vs->client_width, | |
1101 | vs->client_height, vs->client_pf.bytes_per_pixel, vs->audio_cap); | |
1102 | } | |
1103 | ||
e2b72cb6 DB |
1104 | vs->throttle_output_offset = offset; |
1105 | } | |
1106 | ||
0bad8342 DB |
1107 | static bool vnc_should_update(VncState *vs) |
1108 | { | |
1109 | switch (vs->update) { | |
1110 | case VNC_STATE_UPDATE_NONE: | |
1111 | break; | |
1112 | case VNC_STATE_UPDATE_INCREMENTAL: | |
e2b72cb6 | 1113 | /* Only allow incremental updates if the pending send queue |
ada8d2e4 DB |
1114 | * is less than the permitted threshold, and the job worker |
1115 | * is completely idle. | |
0bad8342 | 1116 | */ |
ada8d2e4 DB |
1117 | if (vs->output.offset < vs->throttle_output_offset && |
1118 | vs->job_update == VNC_STATE_UPDATE_NONE) { | |
0bad8342 DB |
1119 | return true; |
1120 | } | |
6aa22a29 DB |
1121 | trace_vnc_client_throttle_incremental( |
1122 | vs, vs->ioc, vs->job_update, vs->output.offset); | |
0bad8342 DB |
1123 | break; |
1124 | case VNC_STATE_UPDATE_FORCE: | |
ada8d2e4 DB |
1125 | /* Only allow forced updates if the pending send queue |
1126 | * does not contain a previous forced update, and the | |
1127 | * job worker is completely idle. | |
1128 | * | |
1129 | * Note this means we'll queue a forced update, even if | |
1130 | * the output buffer size is otherwise over the throttle | |
1131 | * output limit. | |
1132 | */ | |
1133 | if (vs->force_update_offset == 0 && | |
1134 | vs->job_update == VNC_STATE_UPDATE_NONE) { | |
1135 | return true; | |
1136 | } | |
6aa22a29 DB |
1137 | trace_vnc_client_throttle_forced( |
1138 | vs, vs->ioc, vs->job_update, vs->force_update_offset); | |
ada8d2e4 | 1139 | break; |
0bad8342 DB |
1140 | } |
1141 | return false; | |
1142 | } | |
1143 | ||
6af998db | 1144 | static int vnc_update_client(VncState *vs, int has_dirty) |
24236869 | 1145 | { |
b939eb89 DB |
1146 | VncDisplay *vd = vs->vd; |
1147 | VncJob *job; | |
1148 | int y; | |
1149 | int height, width; | |
1150 | int n = 0; | |
1151 | ||
5a8be0f7 GH |
1152 | if (vs->disconnecting) { |
1153 | vnc_disconnect_finish(vs); | |
1154 | return 0; | |
1155 | } | |
1156 | ||
63658280 | 1157 | vs->has_dirty += has_dirty; |
0bad8342 | 1158 | if (!vnc_should_update(vs)) { |
b939eb89 DB |
1159 | return 0; |
1160 | } | |
1161 | ||
fef1bbad | 1162 | if (!vs->has_dirty && vs->update != VNC_STATE_UPDATE_FORCE) { |
b939eb89 DB |
1163 | return 0; |
1164 | } | |
1165 | ||
1166 | /* | |
1167 | * Send screen updates to the vnc client using the server | |
1168 | * surface and server dirty map. guest surface updates | |
1169 | * happening in parallel don't disturb us, the next pass will | |
1170 | * send them to the client. | |
1171 | */ | |
1172 | job = vnc_job_new(vs); | |
1173 | ||
1174 | height = pixman_image_get_height(vd->server); | |
1175 | width = pixman_image_get_width(vd->server); | |
1176 | ||
1177 | y = 0; | |
1178 | for (;;) { | |
1179 | int x, h; | |
1180 | unsigned long x2; | |
1181 | unsigned long offset = find_next_bit((unsigned long *) &vs->dirty, | |
1182 | height * VNC_DIRTY_BPL(vs), | |
1183 | y * VNC_DIRTY_BPL(vs)); | |
1184 | if (offset == height * VNC_DIRTY_BPL(vs)) { | |
1185 | /* no more dirty bits */ | |
1186 | break; | |
1187 | } | |
1188 | y = offset / VNC_DIRTY_BPL(vs); | |
1189 | x = offset % VNC_DIRTY_BPL(vs); | |
1190 | x2 = find_next_zero_bit((unsigned long *) &vs->dirty[y], | |
1191 | VNC_DIRTY_BPL(vs), x); | |
1192 | bitmap_clear(vs->dirty[y], x, x2 - x); | |
1193 | h = find_and_clear_dirty_height(vs, y, x, x2, height); | |
1194 | x2 = MIN(x2, width / VNC_DIRTY_PIXELS_PER_BIT); | |
1195 | if (x2 > x) { | |
1196 | n += vnc_job_add_rect(job, x * VNC_DIRTY_PIXELS_PER_BIT, y, | |
1197 | (x2 - x) * VNC_DIRTY_PIXELS_PER_BIT, h); | |
1198 | } | |
1199 | if (!x && x2 == width / VNC_DIRTY_PIXELS_PER_BIT) { | |
1200 | y += h; | |
1201 | if (y == height) { | |
12b316d4 | 1202 | break; |
28a76be8 AL |
1203 | } |
1204 | } | |
24236869 | 1205 | } |
24236869 | 1206 | |
ada8d2e4 | 1207 | vs->job_update = vs->update; |
728a7ac9 | 1208 | vs->update = VNC_STATE_UPDATE_NONE; |
ada8d2e4 | 1209 | vnc_job_push(job); |
b939eb89 DB |
1210 | vs->has_dirty = 0; |
1211 | return n; | |
24236869 FB |
1212 | } |
1213 | ||
429a8ed3 | 1214 | /* audio */ |
1215 | static void audio_capture_notify(void *opaque, audcnotification_e cmd) | |
1216 | { | |
1217 | VncState *vs = opaque; | |
1218 | ||
f31f9c10 | 1219 | assert(vs->magic == VNC_MAGIC); |
429a8ed3 | 1220 | switch (cmd) { |
1221 | case AUD_CNOTIFY_DISABLE: | |
adc8fce8 | 1222 | trace_vnc_msg_server_audio_end(vs, vs->ioc); |
bd023f95 | 1223 | vnc_lock_output(vs); |
46a183da DB |
1224 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); |
1225 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
1226 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_END); | |
bd023f95 | 1227 | vnc_unlock_output(vs); |
429a8ed3 | 1228 | vnc_flush(vs); |
1229 | break; | |
1230 | ||
1231 | case AUD_CNOTIFY_ENABLE: | |
adc8fce8 | 1232 | trace_vnc_msg_server_audio_begin(vs, vs->ioc); |
bd023f95 | 1233 | vnc_lock_output(vs); |
46a183da DB |
1234 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); |
1235 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
1236 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_BEGIN); | |
bd023f95 | 1237 | vnc_unlock_output(vs); |
429a8ed3 | 1238 | vnc_flush(vs); |
1239 | break; | |
1240 | } | |
1241 | } | |
1242 | ||
1243 | static void audio_capture_destroy(void *opaque) | |
1244 | { | |
1245 | } | |
1246 | ||
57a878ed | 1247 | static void audio_capture(void *opaque, const void *buf, int size) |
429a8ed3 | 1248 | { |
1249 | VncState *vs = opaque; | |
1250 | ||
f31f9c10 | 1251 | assert(vs->magic == VNC_MAGIC); |
adc8fce8 | 1252 | trace_vnc_msg_server_audio_data(vs, vs->ioc, buf, size); |
bd023f95 | 1253 | vnc_lock_output(vs); |
e2b72cb6 DB |
1254 | if (vs->output.offset < vs->throttle_output_offset) { |
1255 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU); | |
1256 | vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO); | |
1257 | vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_DATA); | |
1258 | vnc_write_u32(vs, size); | |
1259 | vnc_write(vs, buf, size); | |
6aa22a29 DB |
1260 | } else { |
1261 | trace_vnc_client_throttle_audio(vs, vs->ioc, vs->output.offset); | |
e2b72cb6 | 1262 | } |
bd023f95 | 1263 | vnc_unlock_output(vs); |
429a8ed3 | 1264 | vnc_flush(vs); |
1265 | } | |
1266 | ||
1267 | static void audio_add(VncState *vs) | |
1268 | { | |
1269 | struct audio_capture_ops ops; | |
1270 | ||
1271 | if (vs->audio_cap) { | |
027a79c3 | 1272 | error_report("audio already running"); |
429a8ed3 | 1273 | return; |
1274 | } | |
1275 | ||
1276 | ops.notify = audio_capture_notify; | |
1277 | ops.destroy = audio_capture_destroy; | |
1278 | ops.capture = audio_capture; | |
1279 | ||
f0b9f36d | 1280 | vs->audio_cap = AUD_add_capture(vs->vd->audio_state, &vs->as, &ops, vs); |
429a8ed3 | 1281 | if (!vs->audio_cap) { |
027a79c3 | 1282 | error_report("Failed to add audio capture"); |
429a8ed3 | 1283 | } |
1284 | } | |
1285 | ||
1286 | static void audio_del(VncState *vs) | |
1287 | { | |
1288 | if (vs->audio_cap) { | |
1289 | AUD_del_capture(vs->audio_cap, vs); | |
1290 | vs->audio_cap = NULL; | |
1291 | } | |
1292 | } | |
1293 | ||
198a0039 GH |
1294 | static void vnc_disconnect_start(VncState *vs) |
1295 | { | |
04d2529d | 1296 | if (vs->disconnecting) { |
198a0039 | 1297 | return; |
04d2529d | 1298 | } |
ad6374c4 | 1299 | trace_vnc_client_disconnect_start(vs, vs->ioc); |
8cf36489 | 1300 | vnc_set_share_mode(vs, VNC_SHARE_MODE_DISCONNECTED); |
04d2529d DB |
1301 | if (vs->ioc_tag) { |
1302 | g_source_remove(vs->ioc_tag); | |
a75d6f07 | 1303 | vs->ioc_tag = 0; |
04d2529d DB |
1304 | } |
1305 | qio_channel_close(vs->ioc, NULL); | |
1306 | vs->disconnecting = TRUE; | |
198a0039 GH |
1307 | } |
1308 | ||
7536ee4b | 1309 | void vnc_disconnect_finish(VncState *vs) |
198a0039 | 1310 | { |
7d964c9d CC |
1311 | int i; |
1312 | ||
ad6374c4 DB |
1313 | trace_vnc_client_disconnect_finish(vs, vs->ioc); |
1314 | ||
bd023f95 CC |
1315 | vnc_jobs_join(vs); /* Wait encoding jobs */ |
1316 | ||
1317 | vnc_lock_output(vs); | |
fb6ba0d5 | 1318 | vnc_qmp_event(vs, QAPI_EVENT_VNC_DISCONNECTED); |
0d72f3d3 | 1319 | |
5d418e3b CC |
1320 | buffer_free(&vs->input); |
1321 | buffer_free(&vs->output); | |
4a80dba3 | 1322 | |
fb6ba0d5 | 1323 | qapi_free_VncClientInfo(vs->info); |
4a80dba3 | 1324 | |
161c4f20 | 1325 | vnc_zlib_clear(vs); |
380282b0 | 1326 | vnc_tight_clear(vs); |
148954fa | 1327 | vnc_zrle_clear(vs); |
161c4f20 | 1328 | |
198a0039 GH |
1329 | #ifdef CONFIG_VNC_SASL |
1330 | vnc_sasl_client_cleanup(vs); | |
1331 | #endif /* CONFIG_VNC_SASL */ | |
1332 | audio_del(vs); | |
c2f2ba49 | 1333 | qkbd_state_lift_all_keys(vs->vd->kbd); |
198a0039 | 1334 | |
90cd03a3 | 1335 | if (vs->mouse_mode_notifier.notify != NULL) { |
6fd8e79a | 1336 | qemu_remove_mouse_mode_change_notifier(&vs->mouse_mode_notifier); |
90cd03a3 DB |
1337 | } |
1338 | QTAILQ_REMOVE(&vs->vd->clients, vs, next); | |
1339 | if (QTAILQ_EMPTY(&vs->vd->clients)) { | |
1340 | /* last client gone */ | |
1341 | vnc_update_server_surface(vs->vd); | |
6fd8e79a | 1342 | } |
1dbbe6f1 RL |
1343 | vnc_unlock_output(vs); |
1344 | ||
1b17f1e9 | 1345 | if (vs->cbpeer.notifier.notify) { |
0bf41cab GH |
1346 | qemu_clipboard_peer_unregister(&vs->cbpeer); |
1347 | } | |
41b4bef6 | 1348 | |
bd023f95 | 1349 | qemu_mutex_destroy(&vs->output_mutex); |
6fd8e79a TH |
1350 | if (vs->bh != NULL) { |
1351 | qemu_bh_delete(vs->bh); | |
1352 | } | |
175b2a6e | 1353 | buffer_free(&vs->jobs_buffer); |
175b2a6e | 1354 | |
7d964c9d | 1355 | for (i = 0; i < VNC_STAT_ROWS; ++i) { |
7267c094 | 1356 | g_free(vs->lossy_rect[i]); |
7d964c9d | 1357 | } |
7267c094 | 1358 | g_free(vs->lossy_rect); |
04d2529d DB |
1359 | |
1360 | object_unref(OBJECT(vs->ioc)); | |
1361 | vs->ioc = NULL; | |
1362 | object_unref(OBJECT(vs->sioc)); | |
1363 | vs->sioc = NULL; | |
f31f9c10 | 1364 | vs->magic = 0; |
6bf21f3d LQ |
1365 | g_free(vs->zrle); |
1366 | g_free(vs->tight); | |
7267c094 | 1367 | g_free(vs); |
198a0039 | 1368 | } |
2f9606b3 | 1369 | |
34ab29c2 | 1370 | size_t vnc_client_io_error(VncState *vs, ssize_t ret, Error *err) |
24236869 | 1371 | { |
04d2529d DB |
1372 | if (ret <= 0) { |
1373 | if (ret == 0) { | |
ad6374c4 | 1374 | trace_vnc_client_eof(vs, vs->ioc); |
537848ee | 1375 | vnc_disconnect_start(vs); |
04d2529d | 1376 | } else if (ret != QIO_CHANNEL_ERR_BLOCK) { |
ad6374c4 | 1377 | trace_vnc_client_io_error(vs, vs->ioc, |
34ab29c2 | 1378 | err ? error_get_pretty(err) : "Unknown"); |
537848ee | 1379 | vnc_disconnect_start(vs); |
ea01e5fd | 1380 | } |
24236869 | 1381 | |
34ab29c2 | 1382 | error_free(err); |
28a76be8 | 1383 | return 0; |
24236869 FB |
1384 | } |
1385 | return ret; | |
1386 | } | |
1387 | ||
5fb6c7a8 AL |
1388 | |
1389 | void vnc_client_error(VncState *vs) | |
24236869 | 1390 | { |
198a0039 GH |
1391 | VNC_DEBUG("Closing down client sock: protocol error\n"); |
1392 | vnc_disconnect_start(vs); | |
24236869 FB |
1393 | } |
1394 | ||
3e305e4a | 1395 | |
2f9606b3 AL |
1396 | /* |
1397 | * Called to write a chunk of data to the client socket. The data may | |
1398 | * be the raw data, or may have already been encoded by SASL. | |
1399 | * The data will be written either straight onto the socket, or | |
1400 | * written via the GNUTLS wrappers, if TLS/SSL encryption is enabled | |
1401 | * | |
1402 | * NB, it is theoretically possible to have 2 layers of encryption, | |
1403 | * both SASL, and this TLS layer. It is highly unlikely in practice | |
1404 | * though, since SASL encryption will typically be a no-op if TLS | |
1405 | * is active | |
1406 | * | |
1407 | * Returns the number of bytes written, which may be less than | |
1408 | * the requested 'datalen' if the socket would block. Returns | |
30b80fd5 | 1409 | * 0 on I/O error, and disconnects the client socket. |
2f9606b3 | 1410 | */ |
30b80fd5 | 1411 | size_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen) |
24236869 | 1412 | { |
04d2529d | 1413 | Error *err = NULL; |
fdd1ab6a | 1414 | ssize_t ret; |
34ab29c2 | 1415 | ret = qio_channel_write(vs->ioc, (const char *)data, datalen, &err); |
23decc87 | 1416 | VNC_DEBUG("Wrote wire %p %zd -> %ld\n", data, datalen, ret); |
34ab29c2 | 1417 | return vnc_client_io_error(vs, ret, err); |
2f9606b3 AL |
1418 | } |
1419 | ||
1420 | ||
1421 | /* | |
1422 | * Called to write buffered data to the client socket, when not | |
1423 | * using any SASL SSF encryption layers. Will write as much data | |
1424 | * as possible without blocking. If all buffered data is written, | |
1425 | * will switch the FD poll() handler back to read monitoring. | |
1426 | * | |
1427 | * Returns the number of bytes written, which may be less than | |
30b80fd5 DB |
1428 | * the buffered output data if the socket would block. Returns |
1429 | * 0 on I/O error, and disconnects the client socket. | |
2f9606b3 | 1430 | */ |
30b80fd5 | 1431 | static size_t vnc_client_write_plain(VncState *vs) |
2f9606b3 | 1432 | { |
6aa22a29 | 1433 | size_t offset; |
30b80fd5 | 1434 | size_t ret; |
2f9606b3 AL |
1435 | |
1436 | #ifdef CONFIG_VNC_SASL | |
23decc87 | 1437 | VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n", |
2f9606b3 AL |
1438 | vs->output.buffer, vs->output.capacity, vs->output.offset, |
1439 | vs->sasl.waitWriteSSF); | |
1440 | ||
1441 | if (vs->sasl.conn && | |
1442 | vs->sasl.runSSF && | |
1443 | vs->sasl.waitWriteSSF) { | |
1444 | ret = vnc_client_write_buf(vs, vs->output.buffer, vs->sasl.waitWriteSSF); | |
1445 | if (ret) | |
1446 | vs->sasl.waitWriteSSF -= ret; | |
1447 | } else | |
1448 | #endif /* CONFIG_VNC_SASL */ | |
1449 | ret = vnc_client_write_buf(vs, vs->output.buffer, vs->output.offset); | |
24236869 | 1450 | if (!ret) |
2f9606b3 | 1451 | return 0; |
24236869 | 1452 | |
ada8d2e4 | 1453 | if (ret >= vs->force_update_offset) { |
6aa22a29 DB |
1454 | if (vs->force_update_offset != 0) { |
1455 | trace_vnc_client_unthrottle_forced(vs, vs->ioc); | |
1456 | } | |
ada8d2e4 DB |
1457 | vs->force_update_offset = 0; |
1458 | } else { | |
1459 | vs->force_update_offset -= ret; | |
1460 | } | |
6aa22a29 | 1461 | offset = vs->output.offset; |
32ed2680 | 1462 | buffer_advance(&vs->output, ret); |
6aa22a29 DB |
1463 | if (offset >= vs->throttle_output_offset && |
1464 | vs->output.offset < vs->throttle_output_offset) { | |
1465 | trace_vnc_client_unthrottle_incremental(vs, vs->ioc, vs->output.offset); | |
1466 | } | |
24236869 FB |
1467 | |
1468 | if (vs->output.offset == 0) { | |
04d2529d DB |
1469 | if (vs->ioc_tag) { |
1470 | g_source_remove(vs->ioc_tag); | |
1471 | } | |
1472 | vs->ioc_tag = qio_channel_add_watch( | |
2ddafce7 DH |
1473 | vs->ioc, G_IO_IN | G_IO_HUP | G_IO_ERR, |
1474 | vnc_client_io, vs, NULL); | |
24236869 | 1475 | } |
2f9606b3 AL |
1476 | |
1477 | return ret; | |
1478 | } | |
1479 | ||
1480 | ||
1481 | /* | |
1482 | * First function called whenever there is data to be written to | |
1483 | * the client socket. Will delegate actual work according to whether | |
1484 | * SASL SSF layers are enabled (thus requiring encryption calls) | |
1485 | */ | |
04d2529d | 1486 | static void vnc_client_write_locked(VncState *vs) |
2f9606b3 | 1487 | { |
2f9606b3 AL |
1488 | #ifdef CONFIG_VNC_SASL |
1489 | if (vs->sasl.conn && | |
1490 | vs->sasl.runSSF && | |
9678d950 BS |
1491 | !vs->sasl.waitWriteSSF) { |
1492 | vnc_client_write_sasl(vs); | |
1493 | } else | |
2f9606b3 | 1494 | #endif /* CONFIG_VNC_SASL */ |
7536ee4b | 1495 | { |
d5f04223 | 1496 | vnc_client_write_plain(vs); |
7536ee4b | 1497 | } |
24236869 FB |
1498 | } |
1499 | ||
04d2529d | 1500 | static void vnc_client_write(VncState *vs) |
bd023f95 | 1501 | { |
f31f9c10 | 1502 | assert(vs->magic == VNC_MAGIC); |
bd023f95 | 1503 | vnc_lock_output(vs); |
d5f04223 | 1504 | if (vs->output.offset) { |
04d2529d DB |
1505 | vnc_client_write_locked(vs); |
1506 | } else if (vs->ioc != NULL) { | |
1507 | if (vs->ioc_tag) { | |
1508 | g_source_remove(vs->ioc_tag); | |
1509 | } | |
1510 | vs->ioc_tag = qio_channel_add_watch( | |
2ddafce7 DH |
1511 | vs->ioc, G_IO_IN | G_IO_HUP | G_IO_ERR, |
1512 | vnc_client_io, vs, NULL); | |
bd023f95 CC |
1513 | } |
1514 | vnc_unlock_output(vs); | |
1515 | } | |
1516 | ||
5fb6c7a8 | 1517 | void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting) |
24236869 FB |
1518 | { |
1519 | vs->read_handler = func; | |
1520 | vs->read_handler_expect = expecting; | |
1521 | } | |
1522 | ||
2f9606b3 AL |
1523 | |
1524 | /* | |
1525 | * Called to read a chunk of data from the client socket. The data may | |
1526 | * be the raw data, or may need to be further decoded by SASL. | |
1527 | * The data will be read either straight from to the socket, or | |
1528 | * read via the GNUTLS wrappers, if TLS/SSL encryption is enabled | |
1529 | * | |
1530 | * NB, it is theoretically possible to have 2 layers of encryption, | |
1531 | * both SASL, and this TLS layer. It is highly unlikely in practice | |
1532 | * though, since SASL encryption will typically be a no-op if TLS | |
1533 | * is active | |
1534 | * | |
1535 | * Returns the number of bytes read, which may be less than | |
1536 | * the requested 'datalen' if the socket would block. Returns | |
30b80fd5 | 1537 | * 0 on I/O error or EOF, and disconnects the client socket. |
2f9606b3 | 1538 | */ |
30b80fd5 | 1539 | size_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen) |
24236869 | 1540 | { |
fdd1ab6a | 1541 | ssize_t ret; |
04d2529d | 1542 | Error *err = NULL; |
34ab29c2 | 1543 | ret = qio_channel_read(vs->ioc, (char *)data, datalen, &err); |
23decc87 | 1544 | VNC_DEBUG("Read wire %p %zd -> %ld\n", data, datalen, ret); |
34ab29c2 | 1545 | return vnc_client_io_error(vs, ret, err); |
2f9606b3 | 1546 | } |
24236869 | 1547 | |
2f9606b3 AL |
1548 | |
1549 | /* | |
1550 | * Called to read data from the client socket to the input buffer, | |
1551 | * when not using any SASL SSF encryption layers. Will read as much | |
1552 | * data as possible without blocking. | |
1553 | * | |
30b80fd5 DB |
1554 | * Returns the number of bytes read, which may be less than |
1555 | * the requested 'datalen' if the socket would block. Returns | |
1556 | * 0 on I/O error or EOF, and disconnects the client socket. | |
2f9606b3 | 1557 | */ |
30b80fd5 | 1558 | static size_t vnc_client_read_plain(VncState *vs) |
2f9606b3 | 1559 | { |
30b80fd5 | 1560 | size_t ret; |
23decc87 | 1561 | VNC_DEBUG("Read plain %p size %zd offset %zd\n", |
2f9606b3 AL |
1562 | vs->input.buffer, vs->input.capacity, vs->input.offset); |
1563 | buffer_reserve(&vs->input, 4096); | |
1564 | ret = vnc_client_read_buf(vs, buffer_end(&vs->input), 4096); | |
1565 | if (!ret) | |
1566 | return 0; | |
24236869 | 1567 | vs->input.offset += ret; |
2f9606b3 AL |
1568 | return ret; |
1569 | } | |
1570 | ||
175b2a6e CC |
1571 | static void vnc_jobs_bh(void *opaque) |
1572 | { | |
1573 | VncState *vs = opaque; | |
1574 | ||
f31f9c10 | 1575 | assert(vs->magic == VNC_MAGIC); |
175b2a6e CC |
1576 | vnc_jobs_consume_buffer(vs); |
1577 | } | |
2f9606b3 AL |
1578 | |
1579 | /* | |
1580 | * First function called whenever there is more data to be read from | |
1581 | * the client socket. Will delegate actual work according to whether | |
1582 | * SASL SSF layers are enabled (thus requiring decryption calls) | |
ea697449 | 1583 | * Returns 0 on success, -1 if client disconnected |
2f9606b3 | 1584 | */ |
ea697449 | 1585 | static int vnc_client_read(VncState *vs) |
2f9606b3 | 1586 | { |
30b80fd5 | 1587 | size_t ret; |
2f9606b3 AL |
1588 | |
1589 | #ifdef CONFIG_VNC_SASL | |
1590 | if (vs->sasl.conn && vs->sasl.runSSF) | |
1591 | ret = vnc_client_read_sasl(vs); | |
1592 | else | |
1593 | #endif /* CONFIG_VNC_SASL */ | |
d5f04223 | 1594 | ret = vnc_client_read_plain(vs); |
198a0039 | 1595 | if (!ret) { |
04d2529d | 1596 | if (vs->disconnecting) { |
198a0039 | 1597 | vnc_disconnect_finish(vs); |
ea697449 | 1598 | return -1; |
04d2529d | 1599 | } |
ea697449 | 1600 | return 0; |
198a0039 | 1601 | } |
24236869 FB |
1602 | |
1603 | while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) { | |
28a76be8 AL |
1604 | size_t len = vs->read_handler_expect; |
1605 | int ret; | |
1606 | ||
1607 | ret = vs->read_handler(vs, vs->input.buffer, len); | |
04d2529d | 1608 | if (vs->disconnecting) { |
198a0039 | 1609 | vnc_disconnect_finish(vs); |
ea697449 | 1610 | return -1; |
198a0039 | 1611 | } |
28a76be8 AL |
1612 | |
1613 | if (!ret) { | |
32ed2680 | 1614 | buffer_advance(&vs->input, len); |
28a76be8 AL |
1615 | } else { |
1616 | vs->read_handler_expect = ret; | |
1617 | } | |
24236869 | 1618 | } |
ea697449 | 1619 | return 0; |
24236869 FB |
1620 | } |
1621 | ||
04d2529d DB |
1622 | gboolean vnc_client_io(QIOChannel *ioc G_GNUC_UNUSED, |
1623 | GIOCondition condition, void *opaque) | |
1624 | { | |
1625 | VncState *vs = opaque; | |
f31f9c10 GH |
1626 | |
1627 | assert(vs->magic == VNC_MAGIC); | |
2ddafce7 DH |
1628 | |
1629 | if (condition & (G_IO_HUP | G_IO_ERR)) { | |
1630 | vnc_disconnect_start(vs); | |
1631 | return TRUE; | |
1632 | } | |
1633 | ||
04d2529d | 1634 | if (condition & G_IO_IN) { |
ea697449 | 1635 | if (vnc_client_read(vs) < 0) { |
1bc3117a GH |
1636 | /* vs is free()ed here */ |
1637 | return TRUE; | |
ea697449 | 1638 | } |
04d2529d DB |
1639 | } |
1640 | if (condition & G_IO_OUT) { | |
1641 | vnc_client_write(vs); | |
1642 | } | |
1bc3117a | 1643 | |
d49b87f0 KK |
1644 | if (vs->disconnecting) { |
1645 | if (vs->ioc_tag != 0) { | |
1646 | g_source_remove(vs->ioc_tag); | |
1647 | } | |
1648 | vs->ioc_tag = 0; | |
1649 | } | |
04d2529d DB |
1650 | return TRUE; |
1651 | } | |
1652 | ||
1653 | ||
f887cf16 DB |
1654 | /* |
1655 | * Scale factor to apply to vs->throttle_output_offset when checking for | |
1656 | * hard limit. Worst case normal usage could be x2, if we have a complete | |
1657 | * incremental update and complete forced update in the output buffer. | |
1658 | * So x3 should be good enough, but we pick x5 to be conservative and thus | |
1659 | * (hopefully) never trigger incorrectly. | |
1660 | */ | |
1661 | #define VNC_THROTTLE_OUTPUT_LIMIT_SCALE 5 | |
1662 | ||
5fb6c7a8 | 1663 | void vnc_write(VncState *vs, const void *data, size_t len) |
24236869 | 1664 | { |
f31f9c10 | 1665 | assert(vs->magic == VNC_MAGIC); |
f887cf16 DB |
1666 | if (vs->disconnecting) { |
1667 | return; | |
1668 | } | |
1669 | /* Protection against malicious client/guest to prevent our output | |
1670 | * buffer growing without bound if client stops reading data. This | |
1671 | * should rarely trigger, because we have earlier throttling code | |
1672 | * which stops issuing framebuffer updates and drops audio data | |
1673 | * if the throttle_output_offset value is exceeded. So we only reach | |
1674 | * this higher level if a huge number of pseudo-encodings get | |
1675 | * triggered while data can't be sent on the socket. | |
1676 | * | |
1677 | * NB throttle_output_offset can be zero during early protocol | |
1678 | * handshake, or from the job thread's VncState clone | |
1679 | */ | |
1680 | if (vs->throttle_output_offset != 0 && | |
dffa1de0 DB |
1681 | (vs->output.offset / VNC_THROTTLE_OUTPUT_LIMIT_SCALE) > |
1682 | vs->throttle_output_offset) { | |
6aa22a29 DB |
1683 | trace_vnc_client_output_limit(vs, vs->ioc, vs->output.offset, |
1684 | vs->throttle_output_offset); | |
f887cf16 DB |
1685 | vnc_disconnect_start(vs); |
1686 | return; | |
1687 | } | |
24236869 FB |
1688 | buffer_reserve(&vs->output, len); |
1689 | ||
04d2529d DB |
1690 | if (vs->ioc != NULL && buffer_empty(&vs->output)) { |
1691 | if (vs->ioc_tag) { | |
1692 | g_source_remove(vs->ioc_tag); | |
1693 | } | |
1694 | vs->ioc_tag = qio_channel_add_watch( | |
2ddafce7 DH |
1695 | vs->ioc, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_OUT, |
1696 | vnc_client_io, vs, NULL); | |
24236869 FB |
1697 | } |
1698 | ||
1699 | buffer_append(&vs->output, data, len); | |
1700 | } | |
1701 | ||
5fb6c7a8 | 1702 | void vnc_write_s32(VncState *vs, int32_t value) |
24236869 FB |
1703 | { |
1704 | vnc_write_u32(vs, *(uint32_t *)&value); | |
1705 | } | |
1706 | ||
5fb6c7a8 | 1707 | void vnc_write_u32(VncState *vs, uint32_t value) |
24236869 FB |
1708 | { |
1709 | uint8_t buf[4]; | |
1710 | ||
1711 | buf[0] = (value >> 24) & 0xFF; | |
1712 | buf[1] = (value >> 16) & 0xFF; | |
1713 | buf[2] = (value >> 8) & 0xFF; | |
1714 | buf[3] = value & 0xFF; | |
1715 | ||
1716 | vnc_write(vs, buf, 4); | |
1717 | } | |
1718 | ||
5fb6c7a8 | 1719 | void vnc_write_u16(VncState *vs, uint16_t value) |
24236869 | 1720 | { |
64f5a135 | 1721 | uint8_t buf[2]; |
24236869 FB |
1722 | |
1723 | buf[0] = (value >> 8) & 0xFF; | |
1724 | buf[1] = value & 0xFF; | |
1725 | ||
1726 | vnc_write(vs, buf, 2); | |
1727 | } | |
1728 | ||
5fb6c7a8 | 1729 | void vnc_write_u8(VncState *vs, uint8_t value) |
24236869 FB |
1730 | { |
1731 | vnc_write(vs, (char *)&value, 1); | |
1732 | } | |
1733 | ||
5fb6c7a8 | 1734 | void vnc_flush(VncState *vs) |
24236869 | 1735 | { |
bd023f95 | 1736 | vnc_lock_output(vs); |
d5f04223 | 1737 | if (vs->ioc != NULL && vs->output.offset) { |
bd023f95 CC |
1738 | vnc_client_write_locked(vs); |
1739 | } | |
d49b87f0 KK |
1740 | if (vs->disconnecting) { |
1741 | if (vs->ioc_tag != 0) { | |
1742 | g_source_remove(vs->ioc_tag); | |
1743 | } | |
1744 | vs->ioc_tag = 0; | |
1745 | } | |
bd023f95 | 1746 | vnc_unlock_output(vs); |
24236869 FB |
1747 | } |
1748 | ||
71a8cdec | 1749 | static uint8_t read_u8(uint8_t *data, size_t offset) |
24236869 FB |
1750 | { |
1751 | return data[offset]; | |
1752 | } | |
1753 | ||
71a8cdec | 1754 | static uint16_t read_u16(uint8_t *data, size_t offset) |
24236869 FB |
1755 | { |
1756 | return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF); | |
1757 | } | |
1758 | ||
71a8cdec | 1759 | static int32_t read_s32(uint8_t *data, size_t offset) |
24236869 FB |
1760 | { |
1761 | return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) | | |
28a76be8 | 1762 | (data[offset + 2] << 8) | data[offset + 3]); |
24236869 FB |
1763 | } |
1764 | ||
5fb6c7a8 | 1765 | uint32_t read_u32(uint8_t *data, size_t offset) |
24236869 FB |
1766 | { |
1767 | return ((data[offset] << 24) | (data[offset + 1] << 16) | | |
28a76be8 | 1768 | (data[offset + 2] << 8) | data[offset + 3]); |
24236869 FB |
1769 | } |
1770 | ||
9e8dd451 | 1771 | static void check_pointer_type_change(Notifier *notifier, void *data) |
564c337e | 1772 | { |
37c34d9d | 1773 | VncState *vs = container_of(notifier, VncState, mouse_mode_notifier); |
14768eba | 1774 | int absolute = qemu_input_is_absolute(); |
37c34d9d | 1775 | |
29fa4ed9 | 1776 | if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE) && vs->absolute != absolute) { |
bd023f95 | 1777 | vnc_lock_output(vs); |
46a183da | 1778 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
28a76be8 AL |
1779 | vnc_write_u8(vs, 0); |
1780 | vnc_write_u16(vs, 1); | |
1781 | vnc_framebuffer_update(vs, absolute, 0, | |
bea60dd7 PL |
1782 | pixman_image_get_width(vs->vd->server), |
1783 | pixman_image_get_height(vs->vd->server), | |
29fa4ed9 | 1784 | VNC_ENCODING_POINTER_TYPE_CHANGE); |
bd023f95 | 1785 | vnc_unlock_output(vs); |
28a76be8 | 1786 | vnc_flush(vs); |
564c337e FB |
1787 | } |
1788 | vs->absolute = absolute; | |
1789 | } | |
1790 | ||
24236869 FB |
1791 | static void pointer_event(VncState *vs, int button_mask, int x, int y) |
1792 | { | |
7fb1cf16 | 1793 | static uint32_t bmap[INPUT_BUTTON__MAX] = { |
14768eba GH |
1794 | [INPUT_BUTTON_LEFT] = 0x01, |
1795 | [INPUT_BUTTON_MIDDLE] = 0x02, | |
1796 | [INPUT_BUTTON_RIGHT] = 0x04, | |
f22d0af0 GH |
1797 | [INPUT_BUTTON_WHEEL_UP] = 0x08, |
1798 | [INPUT_BUTTON_WHEEL_DOWN] = 0x10, | |
14768eba GH |
1799 | }; |
1800 | QemuConsole *con = vs->vd->dcl.con; | |
bea60dd7 PL |
1801 | int width = pixman_image_get_width(vs->vd->server); |
1802 | int height = pixman_image_get_height(vs->vd->server); | |
24236869 | 1803 | |
14768eba GH |
1804 | if (vs->last_bmask != button_mask) { |
1805 | qemu_input_update_buttons(con, bmap, vs->last_bmask, button_mask); | |
1806 | vs->last_bmask = button_mask; | |
1807 | } | |
564c337e FB |
1808 | |
1809 | if (vs->absolute) { | |
9cfa7ab9 PV |
1810 | qemu_input_queue_abs(con, INPUT_AXIS_X, x, 0, width); |
1811 | qemu_input_queue_abs(con, INPUT_AXIS_Y, y, 0, height); | |
29fa4ed9 | 1812 | } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) { |
14768eba GH |
1813 | qemu_input_queue_rel(con, INPUT_AXIS_X, x - 0x7FFF); |
1814 | qemu_input_queue_rel(con, INPUT_AXIS_Y, y - 0x7FFF); | |
564c337e | 1815 | } else { |
14768eba GH |
1816 | if (vs->last_x != -1) { |
1817 | qemu_input_queue_rel(con, INPUT_AXIS_X, x - vs->last_x); | |
1818 | qemu_input_queue_rel(con, INPUT_AXIS_Y, y - vs->last_y); | |
1819 | } | |
28a76be8 AL |
1820 | vs->last_x = x; |
1821 | vs->last_y = y; | |
24236869 | 1822 | } |
14768eba | 1823 | qemu_input_event_sync(); |
24236869 FB |
1824 | } |
1825 | ||
c2f2ba49 | 1826 | static void press_key(VncState *vs, QKeyCode qcode) |
64f5a135 | 1827 | { |
c2f2ba49 GH |
1828 | qkbd_state_key_event(vs->vd->kbd, qcode, true); |
1829 | qkbd_state_key_event(vs->vd->kbd, qcode, false); | |
a528b80c AZ |
1830 | } |
1831 | ||
ab99e5c1 LL |
1832 | static void vnc_led_state_change(VncState *vs) |
1833 | { | |
ab99e5c1 LL |
1834 | if (!vnc_has_feature(vs, VNC_FEATURE_LED_STATE)) { |
1835 | return; | |
1836 | } | |
1837 | ||
ab99e5c1 LL |
1838 | vnc_lock_output(vs); |
1839 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); | |
1840 | vnc_write_u8(vs, 0); | |
1841 | vnc_write_u16(vs, 1); | |
1842 | vnc_framebuffer_update(vs, 0, 0, 1, 1, VNC_ENCODING_LED_STATE); | |
a54f0d2b | 1843 | vnc_write_u8(vs, vs->vd->ledstate); |
ab99e5c1 LL |
1844 | vnc_unlock_output(vs); |
1845 | vnc_flush(vs); | |
1846 | } | |
1847 | ||
7ffb82ca GH |
1848 | static void kbd_leds(void *opaque, int ledstate) |
1849 | { | |
a54f0d2b PO |
1850 | VncDisplay *vd = opaque; |
1851 | VncState *client; | |
7ffb82ca | 1852 | |
40066175 GH |
1853 | trace_vnc_key_guest_leds((ledstate & QEMU_CAPS_LOCK_LED), |
1854 | (ledstate & QEMU_NUM_LOCK_LED), | |
1855 | (ledstate & QEMU_SCROLL_LOCK_LED)); | |
1856 | ||
a54f0d2b PO |
1857 | if (ledstate == vd->ledstate) { |
1858 | return; | |
96f3d174 | 1859 | } |
ab99e5c1 | 1860 | |
a54f0d2b PO |
1861 | vd->ledstate = ledstate; |
1862 | ||
1863 | QTAILQ_FOREACH(client, &vd->clients, next) { | |
1864 | vnc_led_state_change(client); | |
ab99e5c1 | 1865 | } |
7ffb82ca GH |
1866 | } |
1867 | ||
9ca313aa | 1868 | static void do_key_event(VncState *vs, int down, int keycode, int sym) |
24236869 | 1869 | { |
c2f2ba49 GH |
1870 | QKeyCode qcode = qemu_input_key_number_to_qcode(keycode); |
1871 | ||
64f5a135 | 1872 | /* QEMU console switch */ |
c2f2ba49 GH |
1873 | switch (qcode) { |
1874 | case Q_KEY_CODE_1 ... Q_KEY_CODE_9: /* '1' to '9' keys */ | |
1875 | if (vs->vd->dcl.con == NULL && down && | |
1876 | qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_CTRL) && | |
1877 | qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_ALT)) { | |
64f5a135 | 1878 | /* Reset the modifiers sent to the current console */ |
c2f2ba49 GH |
1879 | qkbd_state_lift_all_keys(vs->vd->kbd); |
1880 | console_select(qcode - Q_KEY_CODE_1); | |
64f5a135 FB |
1881 | return; |
1882 | } | |
c2f2ba49 | 1883 | default: |
a528b80c AZ |
1884 | break; |
1885 | } | |
1886 | ||
e7b2aacc LL |
1887 | /* Turn off the lock state sync logic if the client support the led |
1888 | state extension. | |
1889 | */ | |
9892088b | 1890 | if (down && vs->vd->lock_key_sync && |
e7b2aacc | 1891 | !vnc_has_feature(vs, VNC_FEATURE_LED_STATE) && |
3a0558b5 | 1892 | keycode_is_keypad(vs->vd->kbd_layout, keycode)) { |
a528b80c AZ |
1893 | /* If the numlock state needs to change then simulate an additional |
1894 | keypress before sending this one. This will happen if the user | |
1895 | toggles numlock away from the VNC window. | |
1896 | */ | |
753b4053 | 1897 | if (keysym_is_numlock(vs->vd->kbd_layout, sym & 0xFFFF)) { |
c2f2ba49 | 1898 | if (!qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_NUMLOCK)) { |
40066175 | 1899 | trace_vnc_key_sync_numlock(true); |
c2f2ba49 | 1900 | press_key(vs, Q_KEY_CODE_NUM_LOCK); |
a528b80c AZ |
1901 | } |
1902 | } else { | |
c2f2ba49 | 1903 | if (qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_NUMLOCK)) { |
40066175 | 1904 | trace_vnc_key_sync_numlock(false); |
c2f2ba49 | 1905 | press_key(vs, Q_KEY_CODE_NUM_LOCK); |
a528b80c AZ |
1906 | } |
1907 | } | |
64f5a135 | 1908 | } |
24236869 | 1909 | |
9892088b | 1910 | if (down && vs->vd->lock_key_sync && |
e7b2aacc | 1911 | !vnc_has_feature(vs, VNC_FEATURE_LED_STATE) && |
3a0558b5 | 1912 | ((sym >= 'A' && sym <= 'Z') || (sym >= 'a' && sym <= 'z'))) { |
6b132502 GH |
1913 | /* If the capslock state needs to change then simulate an additional |
1914 | keypress before sending this one. This will happen if the user | |
1915 | toggles capslock away from the VNC window. | |
1916 | */ | |
1917 | int uppercase = !!(sym >= 'A' && sym <= 'Z'); | |
c2f2ba49 GH |
1918 | bool shift = qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_SHIFT); |
1919 | bool capslock = qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_CAPSLOCK); | |
6b132502 GH |
1920 | if (capslock) { |
1921 | if (uppercase == shift) { | |
40066175 | 1922 | trace_vnc_key_sync_capslock(false); |
c2f2ba49 | 1923 | press_key(vs, Q_KEY_CODE_CAPS_LOCK); |
6b132502 GH |
1924 | } |
1925 | } else { | |
1926 | if (uppercase != shift) { | |
40066175 | 1927 | trace_vnc_key_sync_capslock(true); |
c2f2ba49 | 1928 | press_key(vs, Q_KEY_CODE_CAPS_LOCK); |
6b132502 GH |
1929 | } |
1930 | } | |
1931 | } | |
1932 | ||
c2f2ba49 GH |
1933 | qkbd_state_key_event(vs->vd->kbd, qcode, down); |
1934 | if (!qemu_console_is_graphic(NULL)) { | |
1935 | bool numlock = qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_NUMLOCK); | |
1936 | bool control = qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_CTRL); | |
64f5a135 FB |
1937 | /* QEMU console emulation */ |
1938 | if (down) { | |
1939 | switch (keycode) { | |
1940 | case 0x2a: /* Left Shift */ | |
1941 | case 0x36: /* Right Shift */ | |
1942 | case 0x1d: /* Left CTRL */ | |
1943 | case 0x9d: /* Right CTRL */ | |
1944 | case 0x38: /* Left ALT */ | |
1945 | case 0xb8: /* Right ALT */ | |
1946 | break; | |
1947 | case 0xc8: | |
1948 | kbd_put_keysym(QEMU_KEY_UP); | |
1949 | break; | |
1950 | case 0xd0: | |
1951 | kbd_put_keysym(QEMU_KEY_DOWN); | |
1952 | break; | |
1953 | case 0xcb: | |
1954 | kbd_put_keysym(QEMU_KEY_LEFT); | |
1955 | break; | |
1956 | case 0xcd: | |
1957 | kbd_put_keysym(QEMU_KEY_RIGHT); | |
1958 | break; | |
1959 | case 0xd3: | |
1960 | kbd_put_keysym(QEMU_KEY_DELETE); | |
1961 | break; | |
1962 | case 0xc7: | |
1963 | kbd_put_keysym(QEMU_KEY_HOME); | |
1964 | break; | |
1965 | case 0xcf: | |
1966 | kbd_put_keysym(QEMU_KEY_END); | |
1967 | break; | |
1968 | case 0xc9: | |
1969 | kbd_put_keysym(QEMU_KEY_PAGEUP); | |
1970 | break; | |
1971 | case 0xd1: | |
1972 | kbd_put_keysym(QEMU_KEY_PAGEDOWN); | |
1973 | break; | |
bb0a18e1 GH |
1974 | |
1975 | case 0x47: | |
1976 | kbd_put_keysym(numlock ? '7' : QEMU_KEY_HOME); | |
1977 | break; | |
1978 | case 0x48: | |
1979 | kbd_put_keysym(numlock ? '8' : QEMU_KEY_UP); | |
1980 | break; | |
1981 | case 0x49: | |
1982 | kbd_put_keysym(numlock ? '9' : QEMU_KEY_PAGEUP); | |
1983 | break; | |
1984 | case 0x4b: | |
1985 | kbd_put_keysym(numlock ? '4' : QEMU_KEY_LEFT); | |
1986 | break; | |
1987 | case 0x4c: | |
1988 | kbd_put_keysym('5'); | |
1989 | break; | |
1990 | case 0x4d: | |
1991 | kbd_put_keysym(numlock ? '6' : QEMU_KEY_RIGHT); | |
1992 | break; | |
1993 | case 0x4f: | |
1994 | kbd_put_keysym(numlock ? '1' : QEMU_KEY_END); | |
1995 | break; | |
1996 | case 0x50: | |
1997 | kbd_put_keysym(numlock ? '2' : QEMU_KEY_DOWN); | |
1998 | break; | |
1999 | case 0x51: | |
2000 | kbd_put_keysym(numlock ? '3' : QEMU_KEY_PAGEDOWN); | |
2001 | break; | |
2002 | case 0x52: | |
2003 | kbd_put_keysym('0'); | |
2004 | break; | |
2005 | case 0x53: | |
2006 | kbd_put_keysym(numlock ? '.' : QEMU_KEY_DELETE); | |
2007 | break; | |
2008 | ||
2009 | case 0xb5: | |
2010 | kbd_put_keysym('/'); | |
2011 | break; | |
2012 | case 0x37: | |
2013 | kbd_put_keysym('*'); | |
2014 | break; | |
2015 | case 0x4a: | |
2016 | kbd_put_keysym('-'); | |
2017 | break; | |
2018 | case 0x4e: | |
2019 | kbd_put_keysym('+'); | |
2020 | break; | |
2021 | case 0x9c: | |
2022 | kbd_put_keysym('\n'); | |
2023 | break; | |
2024 | ||
64f5a135 | 2025 | default: |
e26437c2 GH |
2026 | if (control) { |
2027 | kbd_put_keysym(sym & 0x1f); | |
2028 | } else { | |
2029 | kbd_put_keysym(sym); | |
2030 | } | |
64f5a135 FB |
2031 | break; |
2032 | } | |
2033 | } | |
2034 | } | |
24236869 FB |
2035 | } |
2036 | ||
40066175 GH |
2037 | static const char *code2name(int keycode) |
2038 | { | |
977c736f | 2039 | return QKeyCode_str(qemu_input_key_number_to_qcode(keycode)); |
40066175 GH |
2040 | } |
2041 | ||
bdbd7676 FB |
2042 | static void key_event(VncState *vs, int down, uint32_t sym) |
2043 | { | |
9ca313aa | 2044 | int keycode; |
4a93fe17 | 2045 | int lsym = sym; |
9ca313aa | 2046 | |
81c0d5a6 | 2047 | if (lsym >= 'A' && lsym <= 'Z' && qemu_console_is_graphic(NULL)) { |
4a93fe17 GH |
2048 | lsym = lsym - 'A' + 'a'; |
2049 | } | |
9ca313aa | 2050 | |
abb4f2c9 | 2051 | keycode = keysym2scancode(vs->vd->kbd_layout, lsym & 0xFFFF, |
19c1b9fd | 2052 | vs->vd->kbd, down) & SCANCODE_KEYMASK; |
40066175 | 2053 | trace_vnc_key_event_map(down, sym, keycode, code2name(keycode)); |
9ca313aa AL |
2054 | do_key_event(vs, down, keycode, sym); |
2055 | } | |
2056 | ||
2057 | static void ext_key_event(VncState *vs, int down, | |
2058 | uint32_t sym, uint16_t keycode) | |
2059 | { | |
2060 | /* if the user specifies a keyboard layout, always use it */ | |
40066175 | 2061 | if (keyboard_layout) { |
9ca313aa | 2062 | key_event(vs, down, sym); |
40066175 GH |
2063 | } else { |
2064 | trace_vnc_key_event_ext(down, sym, keycode, code2name(keycode)); | |
9ca313aa | 2065 | do_key_event(vs, down, keycode, sym); |
40066175 | 2066 | } |
bdbd7676 FB |
2067 | } |
2068 | ||
24236869 | 2069 | static void framebuffer_update_request(VncState *vs, int incremental, |
bea60dd7 | 2070 | int x, int y, int w, int h) |
24236869 | 2071 | { |
bea60dd7 | 2072 | if (incremental) { |
fef1bbad DB |
2073 | if (vs->update != VNC_STATE_UPDATE_FORCE) { |
2074 | vs->update = VNC_STATE_UPDATE_INCREMENTAL; | |
2075 | } | |
2076 | } else { | |
2077 | vs->update = VNC_STATE_UPDATE_FORCE; | |
2078 | vnc_set_area_dirty(vs->dirty, vs->vd, x, y, w, h); | |
104b8d19 GH |
2079 | if (vnc_has_feature(vs, VNC_FEATURE_RESIZE_EXT)) { |
2080 | vnc_desktop_resize_ext(vs, 0); | |
2081 | } | |
24236869 FB |
2082 | } |
2083 | } | |
2084 | ||
9ca313aa AL |
2085 | static void send_ext_key_event_ack(VncState *vs) |
2086 | { | |
bd023f95 | 2087 | vnc_lock_output(vs); |
46a183da | 2088 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
9ca313aa AL |
2089 | vnc_write_u8(vs, 0); |
2090 | vnc_write_u16(vs, 1); | |
d39fa6d8 | 2091 | vnc_framebuffer_update(vs, 0, 0, |
bea60dd7 PL |
2092 | pixman_image_get_width(vs->vd->server), |
2093 | pixman_image_get_height(vs->vd->server), | |
29fa4ed9 | 2094 | VNC_ENCODING_EXT_KEY_EVENT); |
bd023f95 | 2095 | vnc_unlock_output(vs); |
9ca313aa AL |
2096 | vnc_flush(vs); |
2097 | } | |
2098 | ||
429a8ed3 | 2099 | static void send_ext_audio_ack(VncState *vs) |
2100 | { | |
bd023f95 | 2101 | vnc_lock_output(vs); |
46a183da | 2102 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
429a8ed3 | 2103 | vnc_write_u8(vs, 0); |
2104 | vnc_write_u16(vs, 1); | |
d39fa6d8 | 2105 | vnc_framebuffer_update(vs, 0, 0, |
bea60dd7 PL |
2106 | pixman_image_get_width(vs->vd->server), |
2107 | pixman_image_get_height(vs->vd->server), | |
29fa4ed9 | 2108 | VNC_ENCODING_AUDIO); |
bd023f95 | 2109 | vnc_unlock_output(vs); |
429a8ed3 | 2110 | vnc_flush(vs); |
2111 | } | |
2112 | ||
7b5fa0b5 DB |
2113 | static void send_xvp_message(VncState *vs, int code) |
2114 | { | |
2115 | vnc_lock_output(vs); | |
2116 | vnc_write_u8(vs, VNC_MSG_SERVER_XVP); | |
2117 | vnc_write_u8(vs, 0); /* pad */ | |
2118 | vnc_write_u8(vs, 1); /* version */ | |
2119 | vnc_write_u8(vs, code); | |
2120 | vnc_unlock_output(vs); | |
2121 | vnc_flush(vs); | |
2122 | } | |
2123 | ||
24236869 FB |
2124 | static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) |
2125 | { | |
2126 | int i; | |
29fa4ed9 | 2127 | unsigned int enc = 0; |
24236869 | 2128 | |
29fa4ed9 | 2129 | vs->features = 0; |
a9f20d31 | 2130 | vs->vnc_encoding = 0; |
6bf21f3d LQ |
2131 | vs->tight->compression = 9; |
2132 | vs->tight->quality = -1; /* Lossless by default */ | |
564c337e | 2133 | vs->absolute = -1; |
24236869 | 2134 | |
8a0f0d0c CC |
2135 | /* |
2136 | * Start from the end because the encodings are sent in order of preference. | |
e5bed759 | 2137 | * This way the preferred encoding (first encoding defined in the array) |
8a0f0d0c CC |
2138 | * will be set at the end of the loop. |
2139 | */ | |
24236869 | 2140 | for (i = n_encodings - 1; i >= 0; i--) { |
29fa4ed9 AL |
2141 | enc = encodings[i]; |
2142 | switch (enc) { | |
2143 | case VNC_ENCODING_RAW: | |
a9f20d31 | 2144 | vs->vnc_encoding = enc; |
29fa4ed9 | 2145 | break; |
29fa4ed9 AL |
2146 | case VNC_ENCODING_HEXTILE: |
2147 | vs->features |= VNC_FEATURE_HEXTILE_MASK; | |
a9f20d31 | 2148 | vs->vnc_encoding = enc; |
29fa4ed9 | 2149 | break; |
380282b0 CC |
2150 | case VNC_ENCODING_TIGHT: |
2151 | vs->features |= VNC_FEATURE_TIGHT_MASK; | |
2152 | vs->vnc_encoding = enc; | |
2153 | break; | |
95f8510e | 2154 | #ifdef CONFIG_PNG |
efe556ad CC |
2155 | case VNC_ENCODING_TIGHT_PNG: |
2156 | vs->features |= VNC_FEATURE_TIGHT_PNG_MASK; | |
2157 | vs->vnc_encoding = enc; | |
2158 | break; | |
fe3e7f2d | 2159 | #endif |
059cef40 | 2160 | case VNC_ENCODING_ZLIB: |
557ba0e5 CE |
2161 | /* |
2162 | * VNC_ENCODING_ZRLE compresses better than VNC_ENCODING_ZLIB. | |
2163 | * So prioritize ZRLE, even if the client hints that it prefers | |
2164 | * ZLIB. | |
2165 | */ | |
2166 | if ((vs->features & VNC_FEATURE_ZRLE_MASK) == 0) { | |
2167 | vs->features |= VNC_FEATURE_ZLIB_MASK; | |
2168 | vs->vnc_encoding = enc; | |
2169 | } | |
059cef40 | 2170 | break; |
148954fa CC |
2171 | case VNC_ENCODING_ZRLE: |
2172 | vs->features |= VNC_FEATURE_ZRLE_MASK; | |
2173 | vs->vnc_encoding = enc; | |
2174 | break; | |
2175 | case VNC_ENCODING_ZYWRLE: | |
2176 | vs->features |= VNC_FEATURE_ZYWRLE_MASK; | |
2177 | vs->vnc_encoding = enc; | |
2178 | break; | |
29fa4ed9 AL |
2179 | case VNC_ENCODING_DESKTOPRESIZE: |
2180 | vs->features |= VNC_FEATURE_RESIZE_MASK; | |
2181 | break; | |
763deea7 GH |
2182 | case VNC_ENCODING_DESKTOP_RESIZE_EXT: |
2183 | vs->features |= VNC_FEATURE_RESIZE_EXT_MASK; | |
2184 | break; | |
29fa4ed9 AL |
2185 | case VNC_ENCODING_POINTER_TYPE_CHANGE: |
2186 | vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK; | |
2187 | break; | |
d467b679 GH |
2188 | case VNC_ENCODING_RICH_CURSOR: |
2189 | vs->features |= VNC_FEATURE_RICH_CURSOR_MASK; | |
074a86d0 GH |
2190 | break; |
2191 | case VNC_ENCODING_ALPHA_CURSOR: | |
2192 | vs->features |= VNC_FEATURE_ALPHA_CURSOR_MASK; | |
d467b679 | 2193 | break; |
29fa4ed9 | 2194 | case VNC_ENCODING_EXT_KEY_EVENT: |
9ca313aa AL |
2195 | send_ext_key_event_ack(vs); |
2196 | break; | |
29fa4ed9 | 2197 | case VNC_ENCODING_AUDIO: |
429a8ed3 | 2198 | send_ext_audio_ack(vs); |
2199 | break; | |
29fa4ed9 AL |
2200 | case VNC_ENCODING_WMVi: |
2201 | vs->features |= VNC_FEATURE_WMVI_MASK; | |
ca4cca4d | 2202 | break; |
ab99e5c1 LL |
2203 | case VNC_ENCODING_LED_STATE: |
2204 | vs->features |= VNC_FEATURE_LED_STATE_MASK; | |
2205 | break; | |
7b5fa0b5 DB |
2206 | case VNC_ENCODING_XVP: |
2207 | if (vs->vd->power_control) { | |
2208 | vs->features |= VNC_FEATURE_XVP; | |
2209 | send_xvp_message(vs, VNC_XVP_CODE_INIT); | |
2210 | } | |
2211 | break; | |
0bf41cab GH |
2212 | case VNC_ENCODING_CLIPBOARD_EXT: |
2213 | vs->features |= VNC_FEATURE_CLIPBOARD_EXT_MASK; | |
2214 | vnc_server_cut_text_caps(vs); | |
2215 | break; | |
fb437313 | 2216 | case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9: |
6bf21f3d | 2217 | vs->tight->compression = (enc & 0x0F); |
fb437313 AL |
2218 | break; |
2219 | case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9: | |
b31f519e | 2220 | if (vs->vd->lossy) { |
6bf21f3d | 2221 | vs->tight->quality = (enc & 0x0F); |
b31f519e | 2222 | } |
fb437313 | 2223 | break; |
29fa4ed9 AL |
2224 | default: |
2225 | VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc); | |
2226 | break; | |
2227 | } | |
24236869 | 2228 | } |
d239726c | 2229 | vnc_desktop_resize(vs); |
9e8dd451 | 2230 | check_pointer_type_change(&vs->mouse_mode_notifier, NULL); |
d239726c GH |
2231 | vnc_led_state_change(vs); |
2232 | vnc_cursor_define(vs); | |
24236869 FB |
2233 | } |
2234 | ||
6cec5487 AL |
2235 | static void set_pixel_conversion(VncState *vs) |
2236 | { | |
9f64916d GH |
2237 | pixman_format_code_t fmt = qemu_pixman_get_format(&vs->client_pf); |
2238 | ||
2239 | if (fmt == VNC_SERVER_FB_FORMAT) { | |
6cec5487 | 2240 | vs->write_pixels = vnc_write_pixels_copy; |
70a4568f | 2241 | vnc_hextile_set_pixel_conversion(vs, 0); |
6cec5487 AL |
2242 | } else { |
2243 | vs->write_pixels = vnc_write_pixels_generic; | |
70a4568f | 2244 | vnc_hextile_set_pixel_conversion(vs, 1); |
6cec5487 AL |
2245 | } |
2246 | } | |
2247 | ||
0c426e45 AG |
2248 | static void send_color_map(VncState *vs) |
2249 | { | |
2250 | int i; | |
2251 | ||
947191b4 | 2252 | vnc_lock_output(vs); |
0c426e45 AG |
2253 | vnc_write_u8(vs, VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES); |
2254 | vnc_write_u8(vs, 0); /* padding */ | |
2255 | vnc_write_u16(vs, 0); /* first color */ | |
2256 | vnc_write_u16(vs, 256); /* # of colors */ | |
2257 | ||
2258 | for (i = 0; i < 256; i++) { | |
2259 | PixelFormat *pf = &vs->client_pf; | |
2260 | ||
2261 | vnc_write_u16(vs, (((i >> pf->rshift) & pf->rmax) << (16 - pf->rbits))); | |
2262 | vnc_write_u16(vs, (((i >> pf->gshift) & pf->gmax) << (16 - pf->gbits))); | |
2263 | vnc_write_u16(vs, (((i >> pf->bshift) & pf->bmax) << (16 - pf->bbits))); | |
2264 | } | |
947191b4 | 2265 | vnc_unlock_output(vs); |
0c426e45 AG |
2266 | } |
2267 | ||
ec9fb41a | 2268 | static void set_pixel_format(VncState *vs, int bits_per_pixel, |
28a76be8 AL |
2269 | int big_endian_flag, int true_color_flag, |
2270 | int red_max, int green_max, int blue_max, | |
2271 | int red_shift, int green_shift, int blue_shift) | |
24236869 | 2272 | { |
3512779a | 2273 | if (!true_color_flag) { |
0c426e45 AG |
2274 | /* Expose a reasonable default 256 color map */ |
2275 | bits_per_pixel = 8; | |
0c426e45 AG |
2276 | red_max = 7; |
2277 | green_max = 7; | |
2278 | blue_max = 3; | |
2279 | red_shift = 0; | |
2280 | green_shift = 3; | |
2281 | blue_shift = 6; | |
3512779a | 2282 | } |
24236869 | 2283 | |
e6908bfe PM |
2284 | switch (bits_per_pixel) { |
2285 | case 8: | |
2286 | case 16: | |
2287 | case 32: | |
2288 | break; | |
2289 | default: | |
2290 | vnc_client_error(vs); | |
2291 | return; | |
2292 | } | |
2293 | ||
4c65fed8 | 2294 | vs->client_pf.rmax = red_max ? red_max : 0xFF; |
7c9209e7 | 2295 | vs->client_pf.rbits = ctpopl(red_max); |
9f64916d GH |
2296 | vs->client_pf.rshift = red_shift; |
2297 | vs->client_pf.rmask = red_max << red_shift; | |
4c65fed8 | 2298 | vs->client_pf.gmax = green_max ? green_max : 0xFF; |
7c9209e7 | 2299 | vs->client_pf.gbits = ctpopl(green_max); |
9f64916d GH |
2300 | vs->client_pf.gshift = green_shift; |
2301 | vs->client_pf.gmask = green_max << green_shift; | |
4c65fed8 | 2302 | vs->client_pf.bmax = blue_max ? blue_max : 0xFF; |
7c9209e7 | 2303 | vs->client_pf.bbits = ctpopl(blue_max); |
9f64916d GH |
2304 | vs->client_pf.bshift = blue_shift; |
2305 | vs->client_pf.bmask = blue_max << blue_shift; | |
2306 | vs->client_pf.bits_per_pixel = bits_per_pixel; | |
2307 | vs->client_pf.bytes_per_pixel = bits_per_pixel / 8; | |
2308 | vs->client_pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel; | |
2309 | vs->client_be = big_endian_flag; | |
6cec5487 | 2310 | |
0c426e45 AG |
2311 | if (!true_color_flag) { |
2312 | send_color_map(vs); | |
2313 | } | |
2314 | ||
6cec5487 | 2315 | set_pixel_conversion(vs); |
24236869 | 2316 | |
1d0d59fe GH |
2317 | graphic_hw_invalidate(vs->vd->dcl.con); |
2318 | graphic_hw_update(vs->vd->dcl.con); | |
24236869 FB |
2319 | } |
2320 | ||
ca4cca4d AL |
2321 | static void pixel_format_message (VncState *vs) { |
2322 | char pad[3] = { 0, 0, 0 }; | |
2323 | ||
9f64916d GH |
2324 | vs->client_pf = qemu_default_pixelformat(32); |
2325 | ||
2326 | vnc_write_u8(vs, vs->client_pf.bits_per_pixel); /* bits-per-pixel */ | |
2327 | vnc_write_u8(vs, vs->client_pf.depth); /* depth */ | |
ca4cca4d | 2328 | |
e03b5686 | 2329 | #if HOST_BIG_ENDIAN |
ca4cca4d AL |
2330 | vnc_write_u8(vs, 1); /* big-endian-flag */ |
2331 | #else | |
2332 | vnc_write_u8(vs, 0); /* big-endian-flag */ | |
2333 | #endif | |
2334 | vnc_write_u8(vs, 1); /* true-color-flag */ | |
9f64916d GH |
2335 | vnc_write_u16(vs, vs->client_pf.rmax); /* red-max */ |
2336 | vnc_write_u16(vs, vs->client_pf.gmax); /* green-max */ | |
2337 | vnc_write_u16(vs, vs->client_pf.bmax); /* blue-max */ | |
2338 | vnc_write_u8(vs, vs->client_pf.rshift); /* red-shift */ | |
2339 | vnc_write_u8(vs, vs->client_pf.gshift); /* green-shift */ | |
2340 | vnc_write_u8(vs, vs->client_pf.bshift); /* blue-shift */ | |
2341 | vnc_write(vs, pad, 3); /* padding */ | |
70a4568f CC |
2342 | |
2343 | vnc_hextile_set_pixel_conversion(vs, 0); | |
ca4cca4d | 2344 | vs->write_pixels = vnc_write_pixels_copy; |
ca4cca4d AL |
2345 | } |
2346 | ||
753b4053 | 2347 | static void vnc_colordepth(VncState *vs) |
7eac3a87 | 2348 | { |
753b4053 | 2349 | if (vnc_has_feature(vs, VNC_FEATURE_WMVI)) { |
ca4cca4d | 2350 | /* Sending a WMVi message to notify the client*/ |
bd023f95 | 2351 | vnc_lock_output(vs); |
46a183da | 2352 | vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); |
ca4cca4d AL |
2353 | vnc_write_u8(vs, 0); |
2354 | vnc_write_u16(vs, 1); /* number of rects */ | |
d39fa6d8 | 2355 | vnc_framebuffer_update(vs, 0, 0, |
3d3a528d DB |
2356 | vs->client_width, |
2357 | vs->client_height, | |
d39fa6d8 | 2358 | VNC_ENCODING_WMVi); |
ca4cca4d | 2359 | pixel_format_message(vs); |
bd023f95 | 2360 | vnc_unlock_output(vs); |
ca4cca4d | 2361 | vnc_flush(vs); |
7eac3a87 | 2362 | } else { |
6cec5487 | 2363 | set_pixel_conversion(vs); |
7eac3a87 AL |
2364 | } |
2365 | } | |
2366 | ||
60fe76f3 | 2367 | static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len) |
24236869 FB |
2368 | { |
2369 | int i; | |
2370 | uint16_t limit; | |
cf070658 | 2371 | uint32_t freq; |
2430ffe4 SS |
2372 | VncDisplay *vd = vs->vd; |
2373 | ||
2374 | if (data[0] > 3) { | |
0f7b2864 | 2375 | update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE); |
2430ffe4 | 2376 | } |
24236869 FB |
2377 | |
2378 | switch (data[0]) { | |
46a183da | 2379 | case VNC_MSG_CLIENT_SET_PIXEL_FORMAT: |
28a76be8 AL |
2380 | if (len == 1) |
2381 | return 20; | |
2382 | ||
ec9fb41a | 2383 | set_pixel_format(vs, read_u8(data, 4), |
28a76be8 AL |
2384 | read_u8(data, 6), read_u8(data, 7), |
2385 | read_u16(data, 8), read_u16(data, 10), | |
2386 | read_u16(data, 12), read_u8(data, 14), | |
2387 | read_u8(data, 15), read_u8(data, 16)); | |
2388 | break; | |
46a183da | 2389 | case VNC_MSG_CLIENT_SET_ENCODINGS: |
28a76be8 AL |
2390 | if (len == 1) |
2391 | return 4; | |
24236869 | 2392 | |
28a76be8 | 2393 | if (len == 4) { |
69dd5c9f AL |
2394 | limit = read_u16(data, 2); |
2395 | if (limit > 0) | |
2396 | return 4 + (limit * 4); | |
2397 | } else | |
2398 | limit = read_u16(data, 2); | |
24236869 | 2399 | |
28a76be8 AL |
2400 | for (i = 0; i < limit; i++) { |
2401 | int32_t val = read_s32(data, 4 + (i * 4)); | |
2402 | memcpy(data + 4 + (i * 4), &val, sizeof(val)); | |
2403 | } | |
24236869 | 2404 | |
28a76be8 AL |
2405 | set_encodings(vs, (int32_t *)(data + 4), limit); |
2406 | break; | |
46a183da | 2407 | case VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST: |
28a76be8 AL |
2408 | if (len == 1) |
2409 | return 10; | |
24236869 | 2410 | |
28a76be8 AL |
2411 | framebuffer_update_request(vs, |
2412 | read_u8(data, 1), read_u16(data, 2), read_u16(data, 4), | |
2413 | read_u16(data, 6), read_u16(data, 8)); | |
2414 | break; | |
46a183da | 2415 | case VNC_MSG_CLIENT_KEY_EVENT: |
28a76be8 AL |
2416 | if (len == 1) |
2417 | return 8; | |
24236869 | 2418 | |
28a76be8 AL |
2419 | key_event(vs, read_u8(data, 1), read_u32(data, 4)); |
2420 | break; | |
46a183da | 2421 | case VNC_MSG_CLIENT_POINTER_EVENT: |
28a76be8 AL |
2422 | if (len == 1) |
2423 | return 6; | |
24236869 | 2424 | |
28a76be8 AL |
2425 | pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4)); |
2426 | break; | |
46a183da | 2427 | case VNC_MSG_CLIENT_CUT_TEXT: |
f9a70e79 | 2428 | if (len == 1) { |
28a76be8 | 2429 | return 8; |
f9a70e79 | 2430 | } |
d307040b | 2431 | uint32_t dlen = abs(read_s32(data, 4)); |
28a76be8 | 2432 | if (len == 8) { |
f9a70e79 PL |
2433 | if (dlen > (1 << 20)) { |
2434 | error_report("vnc: client_cut_text msg payload has %u bytes" | |
2435 | " which exceeds our limit of 1MB.", dlen); | |
2436 | vnc_client_error(vs); | |
2437 | break; | |
2438 | } | |
2439 | if (dlen > 0) { | |
baa7666c | 2440 | return 8 + dlen; |
f9a70e79 | 2441 | } |
baa7666c | 2442 | } |
24236869 | 2443 | |
0bf41cab | 2444 | if (read_s32(data, 4) < 0) { |
d307040b MMC |
2445 | if (dlen < 4) { |
2446 | error_report("vnc: malformed payload (header less than 4 bytes)" | |
2447 | " in extended clipboard pseudo-encoding."); | |
2448 | vnc_client_error(vs); | |
2449 | break; | |
2450 | } | |
2451 | vnc_client_cut_text_ext(vs, dlen, read_u32(data, 8), data + 12); | |
0bf41cab GH |
2452 | break; |
2453 | } | |
2454 | vnc_client_cut_text(vs, read_u32(data, 4), data + 8); | |
28a76be8 | 2455 | break; |
7b5fa0b5 DB |
2456 | case VNC_MSG_CLIENT_XVP: |
2457 | if (!(vs->features & VNC_FEATURE_XVP)) { | |
2458 | error_report("vnc: xvp client message while disabled"); | |
2459 | vnc_client_error(vs); | |
2460 | break; | |
2461 | } | |
2462 | if (len == 1) { | |
2463 | return 4; | |
2464 | } | |
2465 | if (len == 4) { | |
2466 | uint8_t version = read_u8(data, 2); | |
2467 | uint8_t action = read_u8(data, 3); | |
2468 | ||
2469 | if (version != 1) { | |
2470 | error_report("vnc: xvp client message version %d != 1", | |
2471 | version); | |
2472 | vnc_client_error(vs); | |
2473 | break; | |
2474 | } | |
2475 | ||
2476 | switch (action) { | |
2477 | case VNC_XVP_ACTION_SHUTDOWN: | |
2478 | qemu_system_powerdown_request(); | |
2479 | break; | |
2480 | case VNC_XVP_ACTION_REBOOT: | |
2481 | send_xvp_message(vs, VNC_XVP_CODE_FAIL); | |
2482 | break; | |
2483 | case VNC_XVP_ACTION_RESET: | |
2484 | qemu_system_reset_request(SHUTDOWN_CAUSE_HOST_QMP_SYSTEM_RESET); | |
2485 | break; | |
2486 | default: | |
2487 | send_xvp_message(vs, VNC_XVP_CODE_FAIL); | |
2488 | break; | |
2489 | } | |
2490 | } | |
2491 | break; | |
46a183da | 2492 | case VNC_MSG_CLIENT_QEMU: |
9ca313aa AL |
2493 | if (len == 1) |
2494 | return 2; | |
2495 | ||
2496 | switch (read_u8(data, 1)) { | |
46a183da | 2497 | case VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT: |
9ca313aa AL |
2498 | if (len == 2) |
2499 | return 12; | |
2500 | ||
2501 | ext_key_event(vs, read_u16(data, 2), | |
2502 | read_u32(data, 4), read_u32(data, 8)); | |
2503 | break; | |
46a183da | 2504 | case VNC_MSG_CLIENT_QEMU_AUDIO: |
429a8ed3 | 2505 | if (len == 2) |
2506 | return 4; | |
2507 | ||
2508 | switch (read_u16 (data, 2)) { | |
46a183da | 2509 | case VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE: |
adc8fce8 | 2510 | trace_vnc_msg_client_audio_enable(vs, vs->ioc); |
429a8ed3 | 2511 | audio_add(vs); |
2512 | break; | |
46a183da | 2513 | case VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE: |
adc8fce8 | 2514 | trace_vnc_msg_client_audio_disable(vs, vs->ioc); |
429a8ed3 | 2515 | audio_del(vs); |
2516 | break; | |
46a183da | 2517 | case VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT: |
429a8ed3 | 2518 | if (len == 4) |
2519 | return 10; | |
2520 | switch (read_u8(data, 4)) { | |
85bc5852 KZ |
2521 | case 0: vs->as.fmt = AUDIO_FORMAT_U8; break; |
2522 | case 1: vs->as.fmt = AUDIO_FORMAT_S8; break; | |
2523 | case 2: vs->as.fmt = AUDIO_FORMAT_U16; break; | |
2524 | case 3: vs->as.fmt = AUDIO_FORMAT_S16; break; | |
2525 | case 4: vs->as.fmt = AUDIO_FORMAT_U32; break; | |
2526 | case 5: vs->as.fmt = AUDIO_FORMAT_S32; break; | |
429a8ed3 | 2527 | default: |
153130cd | 2528 | VNC_DEBUG("Invalid audio format %d\n", read_u8(data, 4)); |
429a8ed3 | 2529 | vnc_client_error(vs); |
2530 | break; | |
2531 | } | |
2532 | vs->as.nchannels = read_u8(data, 5); | |
2533 | if (vs->as.nchannels != 1 && vs->as.nchannels != 2) { | |
090fdc83 | 2534 | VNC_DEBUG("Invalid audio channel count %d\n", |
153130cd | 2535 | read_u8(data, 5)); |
429a8ed3 | 2536 | vnc_client_error(vs); |
2537 | break; | |
2538 | } | |
cf070658 DB |
2539 | freq = read_u32(data, 6); |
2540 | /* No official limit for protocol, but 48khz is a sensible | |
2541 | * upper bound for trustworthy clients, and this limit | |
2542 | * protects calculations involving 'vs->as.freq' later. | |
2543 | */ | |
2544 | if (freq > 48000) { | |
2545 | VNC_DEBUG("Invalid audio frequency %u > 48000", freq); | |
2546 | vnc_client_error(vs); | |
2547 | break; | |
2548 | } | |
2549 | vs->as.freq = freq; | |
adc8fce8 DB |
2550 | trace_vnc_msg_client_audio_format( |
2551 | vs, vs->ioc, vs->as.fmt, vs->as.nchannels, vs->as.freq); | |
429a8ed3 | 2552 | break; |
2553 | default: | |
153130cd | 2554 | VNC_DEBUG("Invalid audio message %d\n", read_u8(data, 4)); |
429a8ed3 | 2555 | vnc_client_error(vs); |
2556 | break; | |
2557 | } | |
2558 | break; | |
2559 | ||
9ca313aa | 2560 | default: |
153130cd | 2561 | VNC_DEBUG("Msg: %d\n", read_u16(data, 0)); |
9ca313aa AL |
2562 | vnc_client_error(vs); |
2563 | break; | |
2564 | } | |
2565 | break; | |
763deea7 GH |
2566 | case VNC_MSG_CLIENT_SET_DESKTOP_SIZE: |
2567 | { | |
2568 | size_t size; | |
2569 | uint8_t screens; | |
adc8fce8 | 2570 | int w, h; |
763deea7 GH |
2571 | |
2572 | if (len < 8) { | |
2573 | return 8; | |
2574 | } | |
2575 | ||
2576 | screens = read_u8(data, 6); | |
2577 | size = 8 + screens * 16; | |
2578 | if (len < size) { | |
2579 | return size; | |
2580 | } | |
adc8fce8 DB |
2581 | w = read_u16(data, 2); |
2582 | h = read_u16(data, 4); | |
763deea7 | 2583 | |
adc8fce8 | 2584 | trace_vnc_msg_client_set_desktop_size(vs, vs->ioc, w, h, screens); |
763deea7 GH |
2585 | if (dpy_ui_info_supported(vs->vd->dcl.con)) { |
2586 | QemuUIInfo info; | |
2587 | memset(&info, 0, sizeof(info)); | |
adc8fce8 DB |
2588 | info.width = w; |
2589 | info.height = h; | |
ca19ef52 | 2590 | dpy_set_ui_info(vs->vd->dcl.con, &info, false); |
763deea7 GH |
2591 | vnc_desktop_resize_ext(vs, 4 /* Request forwarded */); |
2592 | } else { | |
2593 | vnc_desktop_resize_ext(vs, 3 /* Invalid screen layout */); | |
2594 | } | |
2595 | ||
2596 | break; | |
2597 | } | |
24236869 | 2598 | default: |
153130cd | 2599 | VNC_DEBUG("Msg: %d\n", data[0]); |
28a76be8 AL |
2600 | vnc_client_error(vs); |
2601 | break; | |
24236869 | 2602 | } |
5fafdf24 | 2603 | |
e2b72cb6 | 2604 | vnc_update_throttle_offset(vs); |
24236869 FB |
2605 | vnc_read_when(vs, protocol_client_msg, 1); |
2606 | return 0; | |
2607 | } | |
2608 | ||
60fe76f3 | 2609 | static int protocol_client_init(VncState *vs, uint8_t *data, size_t len) |
24236869 | 2610 | { |
c35734b2 | 2611 | char buf[1024]; |
8cf36489 | 2612 | VncShareMode mode; |
c35734b2 | 2613 | int size; |
24236869 | 2614 | |
8cf36489 GH |
2615 | mode = data[0] ? VNC_SHARE_MODE_SHARED : VNC_SHARE_MODE_EXCLUSIVE; |
2616 | switch (vs->vd->share_policy) { | |
2617 | case VNC_SHARE_POLICY_IGNORE: | |
2618 | /* | |
2619 | * Ignore the shared flag. Nothing to do here. | |
2620 | * | |
2621 | * Doesn't conform to the rfb spec but is traditional qemu | |
2622 | * behavior, thus left here as option for compatibility | |
2623 | * reasons. | |
2624 | */ | |
2625 | break; | |
2626 | case VNC_SHARE_POLICY_ALLOW_EXCLUSIVE: | |
2627 | /* | |
2628 | * Policy: Allow clients ask for exclusive access. | |
2629 | * | |
2630 | * Implementation: When a client asks for exclusive access, | |
2631 | * disconnect all others. Shared connects are allowed as long | |
2632 | * as no exclusive connection exists. | |
2633 | * | |
2634 | * This is how the rfb spec suggests to handle the shared flag. | |
2635 | */ | |
2636 | if (mode == VNC_SHARE_MODE_EXCLUSIVE) { | |
2637 | VncState *client; | |
2638 | QTAILQ_FOREACH(client, &vs->vd->clients, next) { | |
2639 | if (vs == client) { | |
2640 | continue; | |
2641 | } | |
2642 | if (client->share_mode != VNC_SHARE_MODE_EXCLUSIVE && | |
2643 | client->share_mode != VNC_SHARE_MODE_SHARED) { | |
2644 | continue; | |
2645 | } | |
2646 | vnc_disconnect_start(client); | |
2647 | } | |
2648 | } | |
2649 | if (mode == VNC_SHARE_MODE_SHARED) { | |
2650 | if (vs->vd->num_exclusive > 0) { | |
2651 | vnc_disconnect_start(vs); | |
2652 | return 0; | |
2653 | } | |
2654 | } | |
2655 | break; | |
2656 | case VNC_SHARE_POLICY_FORCE_SHARED: | |
2657 | /* | |
2658 | * Policy: Shared connects only. | |
2659 | * Implementation: Disallow clients asking for exclusive access. | |
2660 | * | |
2661 | * Useful for shared desktop sessions where you don't want | |
2662 | * someone forgetting to say -shared when running the vnc | |
2663 | * client disconnect everybody else. | |
2664 | */ | |
2665 | if (mode == VNC_SHARE_MODE_EXCLUSIVE) { | |
2666 | vnc_disconnect_start(vs); | |
2667 | return 0; | |
2668 | } | |
2669 | break; | |
2670 | } | |
2671 | vnc_set_share_mode(vs, mode); | |
2672 | ||
e5f34cdd GH |
2673 | if (vs->vd->num_shared > vs->vd->connections_limit) { |
2674 | vnc_disconnect_start(vs); | |
2675 | return 0; | |
2676 | } | |
2677 | ||
4c956bd8 DB |
2678 | assert(pixman_image_get_width(vs->vd->server) < 65536 && |
2679 | pixman_image_get_width(vs->vd->server) >= 0); | |
2680 | assert(pixman_image_get_height(vs->vd->server) < 65536 && | |
2681 | pixman_image_get_height(vs->vd->server) >= 0); | |
bea60dd7 PL |
2682 | vs->client_width = pixman_image_get_width(vs->vd->server); |
2683 | vs->client_height = pixman_image_get_height(vs->vd->server); | |
5862d195 GH |
2684 | vnc_write_u16(vs, vs->client_width); |
2685 | vnc_write_u16(vs, vs->client_height); | |
24236869 | 2686 | |
ca4cca4d | 2687 | pixel_format_message(vs); |
24236869 | 2688 | |
97efe4f9 | 2689 | if (qemu_name) { |
c35734b2 | 2690 | size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name); |
97efe4f9 TH |
2691 | if (size > sizeof(buf)) { |
2692 | size = sizeof(buf); | |
2693 | } | |
2694 | } else { | |
c35734b2 | 2695 | size = snprintf(buf, sizeof(buf), "QEMU"); |
97efe4f9 | 2696 | } |
c35734b2 TS |
2697 | |
2698 | vnc_write_u32(vs, size); | |
2699 | vnc_write(vs, buf, size); | |
24236869 FB |
2700 | vnc_flush(vs); |
2701 | ||
4a80dba3 | 2702 | vnc_client_cache_auth(vs); |
fb6ba0d5 | 2703 | vnc_qmp_event(vs, QAPI_EVENT_VNC_INITIALIZED); |
4a80dba3 | 2704 | |
24236869 FB |
2705 | vnc_read_when(vs, protocol_client_msg, 1); |
2706 | ||
2707 | return 0; | |
2708 | } | |
2709 | ||
5fb6c7a8 AL |
2710 | void start_client_init(VncState *vs) |
2711 | { | |
2712 | vnc_read_when(vs, protocol_client_init, 1); | |
2713 | } | |
2714 | ||
4347e638 RH |
2715 | static void authentication_failed(VncState *vs) |
2716 | { | |
2717 | vnc_write_u32(vs, 1); /* Reject auth */ | |
2718 | if (vs->minor >= 8) { | |
2719 | static const char err[] = "Authentication failed"; | |
2720 | vnc_write_u32(vs, sizeof(err)); | |
2721 | vnc_write(vs, err, sizeof(err)); | |
2722 | } | |
2723 | vnc_flush(vs); | |
2724 | vnc_client_error(vs); | |
2725 | } | |
2726 | ||
83bee4b5 DB |
2727 | static void |
2728 | vnc_munge_des_rfb_key(unsigned char *key, size_t nkey) | |
2729 | { | |
2730 | size_t i; | |
2731 | for (i = 0; i < nkey; i++) { | |
2732 | uint8_t r = key[i]; | |
2733 | r = (r & 0xf0) >> 4 | (r & 0x0f) << 4; | |
2734 | r = (r & 0xcc) >> 2 | (r & 0x33) << 2; | |
2735 | r = (r & 0xaa) >> 1 | (r & 0x55) << 1; | |
2736 | key[i] = r; | |
2737 | } | |
2738 | } | |
2739 | ||
60fe76f3 | 2740 | static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len) |
70848515 | 2741 | { |
60fe76f3 | 2742 | unsigned char response[VNC_AUTH_CHALLENGE_SIZE]; |
800567a6 | 2743 | size_t i, pwlen; |
60fe76f3 | 2744 | unsigned char key[8]; |
3c9405a0 | 2745 | time_t now = time(NULL); |
60928458 | 2746 | QCryptoCipher *cipher = NULL; |
800567a6 | 2747 | Error *err = NULL; |
70848515 | 2748 | |
1cd20f8b | 2749 | if (!vs->vd->password) { |
7364dbda | 2750 | trace_vnc_auth_fail(vs, vs->auth, "password is not set", ""); |
6bffdf0f | 2751 | goto reject; |
70848515 | 2752 | } |
3c9405a0 | 2753 | if (vs->vd->expires < now) { |
7364dbda | 2754 | trace_vnc_auth_fail(vs, vs->auth, "password is expired", ""); |
3c9405a0 GH |
2755 | goto reject; |
2756 | } | |
70848515 TS |
2757 | |
2758 | memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE); | |
2759 | ||
2760 | /* Calculate the expected challenge response */ | |
753b4053 | 2761 | pwlen = strlen(vs->vd->password); |
70848515 | 2762 | for (i=0; i<sizeof(key); i++) |
753b4053 | 2763 | key[i] = i<pwlen ? vs->vd->password[i] : 0; |
83bee4b5 | 2764 | vnc_munge_des_rfb_key(key, sizeof(key)); |
800567a6 DB |
2765 | |
2766 | cipher = qcrypto_cipher_new( | |
83bee4b5 | 2767 | QCRYPTO_CIPHER_ALG_DES, |
800567a6 DB |
2768 | QCRYPTO_CIPHER_MODE_ECB, |
2769 | key, G_N_ELEMENTS(key), | |
2770 | &err); | |
2771 | if (!cipher) { | |
7364dbda DB |
2772 | trace_vnc_auth_fail(vs, vs->auth, "cannot create cipher", |
2773 | error_get_pretty(err)); | |
800567a6 DB |
2774 | error_free(err); |
2775 | goto reject; | |
2776 | } | |
2777 | ||
a1695137 | 2778 | if (qcrypto_cipher_encrypt(cipher, |
800567a6 DB |
2779 | vs->challenge, |
2780 | response, | |
2781 | VNC_AUTH_CHALLENGE_SIZE, | |
2782 | &err) < 0) { | |
7364dbda DB |
2783 | trace_vnc_auth_fail(vs, vs->auth, "cannot encrypt challenge response", |
2784 | error_get_pretty(err)); | |
800567a6 DB |
2785 | error_free(err); |
2786 | goto reject; | |
2787 | } | |
70848515 TS |
2788 | |
2789 | /* Compare expected vs actual challenge response */ | |
2790 | if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) { | |
7364dbda | 2791 | trace_vnc_auth_fail(vs, vs->auth, "mis-matched challenge response", ""); |
6bffdf0f | 2792 | goto reject; |
70848515 | 2793 | } else { |
7364dbda | 2794 | trace_vnc_auth_pass(vs, vs->auth); |
28a76be8 AL |
2795 | vnc_write_u32(vs, 0); /* Accept auth */ |
2796 | vnc_flush(vs); | |
70848515 | 2797 | |
5fb6c7a8 | 2798 | start_client_init(vs); |
70848515 | 2799 | } |
60928458 GA |
2800 | |
2801 | qcrypto_cipher_free(cipher); | |
70848515 | 2802 | return 0; |
6bffdf0f GH |
2803 | |
2804 | reject: | |
4347e638 | 2805 | authentication_failed(vs); |
60928458 | 2806 | qcrypto_cipher_free(cipher); |
6bffdf0f | 2807 | return 0; |
70848515 TS |
2808 | } |
2809 | ||
5fb6c7a8 | 2810 | void start_auth_vnc(VncState *vs) |
70848515 | 2811 | { |
f7b2502c RH |
2812 | Error *err = NULL; |
2813 | ||
2814 | if (qcrypto_random_bytes(vs->challenge, sizeof(vs->challenge), &err)) { | |
2815 | trace_vnc_auth_fail(vs, vs->auth, "cannot get random bytes", | |
2816 | error_get_pretty(err)); | |
2817 | error_free(err); | |
2818 | authentication_failed(vs); | |
2819 | return; | |
2820 | } | |
2821 | ||
70848515 TS |
2822 | /* Send client a 'random' challenge */ |
2823 | vnc_write(vs, vs->challenge, sizeof(vs->challenge)); | |
2824 | vnc_flush(vs); | |
2825 | ||
2826 | vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge)); | |
469b15c6 TS |
2827 | } |
2828 | ||
2829 | ||
60fe76f3 | 2830 | static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len) |
70848515 TS |
2831 | { |
2832 | /* We only advertise 1 auth scheme at a time, so client | |
2833 | * must pick the one we sent. Verify this */ | |
7e7e2ebc | 2834 | if (data[0] != vs->auth) { /* Reject auth */ |
7364dbda | 2835 | trace_vnc_auth_reject(vs, vs->auth, (int)data[0]); |
4347e638 | 2836 | authentication_failed(vs); |
70848515 | 2837 | } else { /* Accept requested auth */ |
7364dbda | 2838 | trace_vnc_auth_start(vs, vs->auth); |
7e7e2ebc | 2839 | switch (vs->auth) { |
70848515 | 2840 | case VNC_AUTH_NONE: |
a26c97ad AZ |
2841 | if (vs->minor >= 8) { |
2842 | vnc_write_u32(vs, 0); /* Accept auth completion */ | |
2843 | vnc_flush(vs); | |
2844 | } | |
7364dbda | 2845 | trace_vnc_auth_pass(vs, vs->auth); |
5fb6c7a8 | 2846 | start_client_init(vs); |
70848515 TS |
2847 | break; |
2848 | ||
2849 | case VNC_AUTH_VNC: | |
5fb6c7a8 AL |
2850 | start_auth_vnc(vs); |
2851 | break; | |
70848515 | 2852 | |
8d5d2d4c | 2853 | case VNC_AUTH_VENCRYPT: |
5fb6c7a8 AL |
2854 | start_auth_vencrypt(vs); |
2855 | break; | |
8d5d2d4c | 2856 | |
2f9606b3 AL |
2857 | #ifdef CONFIG_VNC_SASL |
2858 | case VNC_AUTH_SASL: | |
2f9606b3 AL |
2859 | start_auth_sasl(vs); |
2860 | break; | |
2861 | #endif /* CONFIG_VNC_SASL */ | |
2862 | ||
70848515 | 2863 | default: /* Should not be possible, but just in case */ |
7364dbda | 2864 | trace_vnc_auth_fail(vs, vs->auth, "Unhandled auth method", ""); |
4347e638 | 2865 | authentication_failed(vs); |
70848515 TS |
2866 | } |
2867 | } | |
2868 | return 0; | |
2869 | } | |
2870 | ||
60fe76f3 | 2871 | static int protocol_version(VncState *vs, uint8_t *version, size_t len) |
24236869 FB |
2872 | { |
2873 | char local[13]; | |
24236869 FB |
2874 | |
2875 | memcpy(local, version, 12); | |
2876 | local[12] = 0; | |
2877 | ||
70848515 | 2878 | if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) { |
28a76be8 AL |
2879 | VNC_DEBUG("Malformed protocol version %s\n", local); |
2880 | vnc_client_error(vs); | |
2881 | return 0; | |
24236869 | 2882 | } |
70848515 TS |
2883 | VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor); |
2884 | if (vs->major != 3 || | |
28a76be8 AL |
2885 | (vs->minor != 3 && |
2886 | vs->minor != 4 && | |
2887 | vs->minor != 5 && | |
2888 | vs->minor != 7 && | |
2889 | vs->minor != 8)) { | |
2890 | VNC_DEBUG("Unsupported client version\n"); | |
2891 | vnc_write_u32(vs, VNC_AUTH_INVALID); | |
2892 | vnc_flush(vs); | |
2893 | vnc_client_error(vs); | |
2894 | return 0; | |
70848515 | 2895 | } |
b0566f4f | 2896 | /* Some broken clients report v3.4 or v3.5, which spec requires to be treated |
70848515 TS |
2897 | * as equivalent to v3.3 by servers |
2898 | */ | |
b0566f4f | 2899 | if (vs->minor == 4 || vs->minor == 5) |
28a76be8 | 2900 | vs->minor = 3; |
70848515 TS |
2901 | |
2902 | if (vs->minor == 3) { | |
7364dbda | 2903 | trace_vnc_auth_start(vs, vs->auth); |
7e7e2ebc | 2904 | if (vs->auth == VNC_AUTH_NONE) { |
7e7e2ebc | 2905 | vnc_write_u32(vs, vs->auth); |
70848515 | 2906 | vnc_flush(vs); |
7364dbda | 2907 | trace_vnc_auth_pass(vs, vs->auth); |
28a76be8 | 2908 | start_client_init(vs); |
7e7e2ebc | 2909 | } else if (vs->auth == VNC_AUTH_VNC) { |
70848515 | 2910 | VNC_DEBUG("Tell client VNC auth\n"); |
7e7e2ebc | 2911 | vnc_write_u32(vs, vs->auth); |
70848515 TS |
2912 | vnc_flush(vs); |
2913 | start_auth_vnc(vs); | |
2914 | } else { | |
7364dbda DB |
2915 | trace_vnc_auth_fail(vs, vs->auth, |
2916 | "Unsupported auth method for v3.3", ""); | |
70848515 TS |
2917 | vnc_write_u32(vs, VNC_AUTH_INVALID); |
2918 | vnc_flush(vs); | |
2919 | vnc_client_error(vs); | |
2920 | } | |
2921 | } else { | |
28a76be8 | 2922 | vnc_write_u8(vs, 1); /* num auth */ |
7e7e2ebc | 2923 | vnc_write_u8(vs, vs->auth); |
28a76be8 AL |
2924 | vnc_read_when(vs, protocol_client_auth, 1); |
2925 | vnc_flush(vs); | |
70848515 | 2926 | } |
24236869 FB |
2927 | |
2928 | return 0; | |
2929 | } | |
2930 | ||
999342a0 CC |
2931 | static VncRectStat *vnc_stat_rect(VncDisplay *vd, int x, int y) |
2932 | { | |
2933 | struct VncSurface *vs = &vd->guest; | |
2934 | ||
2935 | return &vs->stats[y / VNC_STAT_RECT][x / VNC_STAT_RECT]; | |
2936 | } | |
2937 | ||
7d964c9d CC |
2938 | void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h) |
2939 | { | |
2940 | int i, j; | |
2941 | ||
2942 | w = (x + w) / VNC_STAT_RECT; | |
2943 | h = (y + h) / VNC_STAT_RECT; | |
2944 | x /= VNC_STAT_RECT; | |
2945 | y /= VNC_STAT_RECT; | |
2946 | ||
207f328a CC |
2947 | for (j = y; j <= h; j++) { |
2948 | for (i = x; i <= w; i++) { | |
7d964c9d CC |
2949 | vs->lossy_rect[j][i] = 1; |
2950 | } | |
2951 | } | |
2952 | } | |
2953 | ||
2954 | static int vnc_refresh_lossy_rect(VncDisplay *vd, int x, int y) | |
2955 | { | |
2956 | VncState *vs; | |
2957 | int sty = y / VNC_STAT_RECT; | |
2958 | int stx = x / VNC_STAT_RECT; | |
2959 | int has_dirty = 0; | |
2960 | ||
5a3804db MAL |
2961 | y = QEMU_ALIGN_DOWN(y, VNC_STAT_RECT); |
2962 | x = QEMU_ALIGN_DOWN(x, VNC_STAT_RECT); | |
7d964c9d CC |
2963 | |
2964 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
bc2429b9 | 2965 | int j; |
7d964c9d CC |
2966 | |
2967 | /* kernel send buffers are full -> refresh later */ | |
2968 | if (vs->output.offset) { | |
2969 | continue; | |
2970 | } | |
2971 | ||
2972 | if (!vs->lossy_rect[sty][stx]) { | |
2973 | continue; | |
2974 | } | |
207f328a | 2975 | |
7d964c9d CC |
2976 | vs->lossy_rect[sty][stx] = 0; |
2977 | for (j = 0; j < VNC_STAT_RECT; ++j) { | |
b4c85ddc PL |
2978 | bitmap_set(vs->dirty[y + j], |
2979 | x / VNC_DIRTY_PIXELS_PER_BIT, | |
2980 | VNC_STAT_RECT / VNC_DIRTY_PIXELS_PER_BIT); | |
7d964c9d CC |
2981 | } |
2982 | has_dirty++; | |
2983 | } | |
207f328a | 2984 | |
7d964c9d CC |
2985 | return has_dirty; |
2986 | } | |
2987 | ||
2988 | static int vnc_update_stats(VncDisplay *vd, struct timeval * tv) | |
999342a0 | 2989 | { |
eebe0b79 GH |
2990 | int width = MIN(pixman_image_get_width(vd->guest.fb), |
2991 | pixman_image_get_width(vd->server)); | |
2992 | int height = MIN(pixman_image_get_height(vd->guest.fb), | |
2993 | pixman_image_get_height(vd->server)); | |
999342a0 CC |
2994 | int x, y; |
2995 | struct timeval res; | |
7d964c9d | 2996 | int has_dirty = 0; |
999342a0 | 2997 | |
9f64916d GH |
2998 | for (y = 0; y < height; y += VNC_STAT_RECT) { |
2999 | for (x = 0; x < width; x += VNC_STAT_RECT) { | |
999342a0 CC |
3000 | VncRectStat *rect = vnc_stat_rect(vd, x, y); |
3001 | ||
3002 | rect->updated = false; | |
3003 | } | |
3004 | } | |
3005 | ||
ad620c29 | 3006 | qemu_timersub(tv, &VNC_REFRESH_STATS, &res); |
999342a0 CC |
3007 | |
3008 | if (timercmp(&vd->guest.last_freq_check, &res, >)) { | |
7d964c9d | 3009 | return has_dirty; |
999342a0 CC |
3010 | } |
3011 | vd->guest.last_freq_check = *tv; | |
3012 | ||
9f64916d GH |
3013 | for (y = 0; y < height; y += VNC_STAT_RECT) { |
3014 | for (x = 0; x < width; x += VNC_STAT_RECT) { | |
999342a0 CC |
3015 | VncRectStat *rect= vnc_stat_rect(vd, x, y); |
3016 | int count = ARRAY_SIZE(rect->times); | |
3017 | struct timeval min, max; | |
3018 | ||
3019 | if (!timerisset(&rect->times[count - 1])) { | |
3020 | continue ; | |
3021 | } | |
3022 | ||
3023 | max = rect->times[(rect->idx + count - 1) % count]; | |
ad620c29 | 3024 | qemu_timersub(tv, &max, &res); |
999342a0 CC |
3025 | |
3026 | if (timercmp(&res, &VNC_REFRESH_LOSSY, >)) { | |
3027 | rect->freq = 0; | |
7d964c9d | 3028 | has_dirty += vnc_refresh_lossy_rect(vd, x, y); |
999342a0 CC |
3029 | memset(rect->times, 0, sizeof (rect->times)); |
3030 | continue ; | |
3031 | } | |
3032 | ||
3033 | min = rect->times[rect->idx]; | |
3034 | max = rect->times[(rect->idx + count - 1) % count]; | |
ad620c29 | 3035 | qemu_timersub(&max, &min, &res); |
999342a0 CC |
3036 | |
3037 | rect->freq = res.tv_sec + res.tv_usec / 1000000.; | |
3038 | rect->freq /= count; | |
3039 | rect->freq = 1. / rect->freq; | |
3040 | } | |
3041 | } | |
7d964c9d | 3042 | return has_dirty; |
999342a0 CC |
3043 | } |
3044 | ||
3045 | double vnc_update_freq(VncState *vs, int x, int y, int w, int h) | |
3046 | { | |
3047 | int i, j; | |
3048 | double total = 0; | |
3049 | int num = 0; | |
3050 | ||
5a3804db MAL |
3051 | x = QEMU_ALIGN_DOWN(x, VNC_STAT_RECT); |
3052 | y = QEMU_ALIGN_DOWN(y, VNC_STAT_RECT); | |
999342a0 CC |
3053 | |
3054 | for (j = y; j <= y + h; j += VNC_STAT_RECT) { | |
3055 | for (i = x; i <= x + w; i += VNC_STAT_RECT) { | |
3056 | total += vnc_stat_rect(vs->vd, i, j)->freq; | |
3057 | num++; | |
3058 | } | |
3059 | } | |
3060 | ||
3061 | if (num) { | |
3062 | return total / num; | |
3063 | } else { | |
3064 | return 0; | |
3065 | } | |
3066 | } | |
3067 | ||
3068 | static void vnc_rect_updated(VncDisplay *vd, int x, int y, struct timeval * tv) | |
3069 | { | |
3070 | VncRectStat *rect; | |
3071 | ||
3072 | rect = vnc_stat_rect(vd, x, y); | |
3073 | if (rect->updated) { | |
c1dadb84 | 3074 | return; |
999342a0 CC |
3075 | } |
3076 | rect->times[rect->idx] = *tv; | |
3077 | rect->idx = (rect->idx + 1) % ARRAY_SIZE(rect->times); | |
3078 | rect->updated = true; | |
3079 | } | |
3080 | ||
1fc62412 SS |
3081 | static int vnc_refresh_server_surface(VncDisplay *vd) |
3082 | { | |
bea60dd7 PL |
3083 | int width = MIN(pixman_image_get_width(vd->guest.fb), |
3084 | pixman_image_get_width(vd->server)); | |
3085 | int height = MIN(pixman_image_get_height(vd->guest.fb), | |
3086 | pixman_image_get_height(vd->server)); | |
eb8934b0 | 3087 | int cmp_bytes, server_stride, line_bytes, guest_ll, guest_stride, y = 0; |
12b316d4 | 3088 | uint8_t *guest_row0 = NULL, *server_row0; |
41b4bef6 | 3089 | VncState *vs; |
1fc62412 | 3090 | int has_dirty = 0; |
9f64916d | 3091 | pixman_image_t *tmpbuf = NULL; |
6c08964b WJ |
3092 | unsigned long offset; |
3093 | int x; | |
3094 | uint8_t *guest_ptr, *server_ptr; | |
1fc62412 | 3095 | |
80e0c8c3 | 3096 | struct timeval tv = { 0, 0 }; |
999342a0 | 3097 | |
80e0c8c3 CC |
3098 | if (!vd->non_adaptive) { |
3099 | gettimeofday(&tv, NULL); | |
3100 | has_dirty = vnc_update_stats(vd, &tv); | |
3101 | } | |
999342a0 | 3102 | |
6c08964b WJ |
3103 | offset = find_next_bit((unsigned long *) &vd->guest.dirty, |
3104 | height * VNC_DIRTY_BPL(&vd->guest), 0); | |
3105 | if (offset == height * VNC_DIRTY_BPL(&vd->guest)) { | |
3106 | /* no dirty bits in guest surface */ | |
3107 | return has_dirty; | |
3108 | } | |
3109 | ||
1fc62412 SS |
3110 | /* |
3111 | * Walk through the guest dirty map. | |
3112 | * Check and copy modified bits from guest to server surface. | |
3113 | * Update server dirty map. | |
3114 | */ | |
bea60dd7 | 3115 | server_row0 = (uint8_t *)pixman_image_get_data(vd->server); |
eb8934b0 GH |
3116 | server_stride = guest_stride = guest_ll = |
3117 | pixman_image_get_stride(vd->server); | |
bea60dd7 PL |
3118 | cmp_bytes = MIN(VNC_DIRTY_PIXELS_PER_BIT * VNC_SERVER_FB_BYTES, |
3119 | server_stride); | |
9f64916d GH |
3120 | if (vd->guest.format != VNC_SERVER_FB_FORMAT) { |
3121 | int width = pixman_image_get_width(vd->server); | |
3122 | tmpbuf = qemu_pixman_linebuf_create(VNC_SERVER_FB_FORMAT, width); | |
12b316d4 | 3123 | } else { |
eb8934b0 GH |
3124 | int guest_bpp = |
3125 | PIXMAN_FORMAT_BPP(pixman_image_get_format(vd->guest.fb)); | |
12b316d4 PL |
3126 | guest_row0 = (uint8_t *)pixman_image_get_data(vd->guest.fb); |
3127 | guest_stride = pixman_image_get_stride(vd->guest.fb); | |
949ed4c2 PMD |
3128 | guest_ll = pixman_image_get_width(vd->guest.fb) |
3129 | * DIV_ROUND_UP(guest_bpp, 8); | |
12b316d4 | 3130 | } |
eb8934b0 | 3131 | line_bytes = MIN(server_stride, guest_ll); |
12b316d4 | 3132 | |
12b316d4 | 3133 | for (;;) { |
12b316d4 PL |
3134 | y = offset / VNC_DIRTY_BPL(&vd->guest); |
3135 | x = offset % VNC_DIRTY_BPL(&vd->guest); | |
1fc62412 | 3136 | |
12b316d4 PL |
3137 | server_ptr = server_row0 + y * server_stride + x * cmp_bytes; |
3138 | ||
3139 | if (vd->guest.format != VNC_SERVER_FB_FORMAT) { | |
3140 | qemu_pixman_linebuf_fill(tmpbuf, vd->guest.fb, width, 0, y); | |
3141 | guest_ptr = (uint8_t *)pixman_image_get_data(tmpbuf); | |
3142 | } else { | |
3143 | guest_ptr = guest_row0 + y * guest_stride; | |
3144 | } | |
3145 | guest_ptr += x * cmp_bytes; | |
3146 | ||
3147 | for (; x < DIV_ROUND_UP(width, VNC_DIRTY_PIXELS_PER_BIT); | |
3148 | x++, guest_ptr += cmp_bytes, server_ptr += cmp_bytes) { | |
bea60dd7 | 3149 | int _cmp_bytes = cmp_bytes; |
12b316d4 PL |
3150 | if (!test_and_clear_bit(x, vd->guest.dirty[y])) { |
3151 | continue; | |
3152 | } | |
eb8934b0 GH |
3153 | if ((x + 1) * cmp_bytes > line_bytes) { |
3154 | _cmp_bytes = line_bytes - x * cmp_bytes; | |
bea60dd7 | 3155 | } |
eb8934b0 | 3156 | assert(_cmp_bytes >= 0); |
bea60dd7 | 3157 | if (memcmp(server_ptr, guest_ptr, _cmp_bytes) == 0) { |
12b316d4 PL |
3158 | continue; |
3159 | } | |
bea60dd7 | 3160 | memcpy(server_ptr, guest_ptr, _cmp_bytes); |
12b316d4 PL |
3161 | if (!vd->non_adaptive) { |
3162 | vnc_rect_updated(vd, x * VNC_DIRTY_PIXELS_PER_BIT, | |
3163 | y, &tv); | |
1fc62412 | 3164 | } |
12b316d4 PL |
3165 | QTAILQ_FOREACH(vs, &vd->clients, next) { |
3166 | set_bit(x, vs->dirty[y]); | |
3167 | } | |
3168 | has_dirty++; | |
1fc62412 | 3169 | } |
12b316d4 PL |
3170 | |
3171 | y++; | |
6c08964b WJ |
3172 | offset = find_next_bit((unsigned long *) &vd->guest.dirty, |
3173 | height * VNC_DIRTY_BPL(&vd->guest), | |
3174 | y * VNC_DIRTY_BPL(&vd->guest)); | |
3175 | if (offset == height * VNC_DIRTY_BPL(&vd->guest)) { | |
3176 | /* no more dirty bits */ | |
3177 | break; | |
3178 | } | |
1fc62412 | 3179 | } |
9f64916d | 3180 | qemu_pixman_image_unref(tmpbuf); |
1fc62412 SS |
3181 | return has_dirty; |
3182 | } | |
3183 | ||
0f7b2864 | 3184 | static void vnc_refresh(DisplayChangeListener *dcl) |
703bc68f | 3185 | { |
0f7b2864 | 3186 | VncDisplay *vd = container_of(dcl, VncDisplay, dcl); |
41b4bef6 AS |
3187 | VncState *vs, *vn; |
3188 | int has_dirty, rects = 0; | |
703bc68f | 3189 | |
9d6b2070 C |
3190 | if (QTAILQ_EMPTY(&vd->clients)) { |
3191 | update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_MAX); | |
3192 | return; | |
3193 | } | |
3194 | ||
1d0d59fe | 3195 | graphic_hw_update(vd->dcl.con); |
703bc68f | 3196 | |
bd023f95 | 3197 | if (vnc_trylock_display(vd)) { |
0f7b2864 | 3198 | update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE); |
bd023f95 CC |
3199 | return; |
3200 | } | |
3201 | ||
1fc62412 | 3202 | has_dirty = vnc_refresh_server_surface(vd); |
bd023f95 | 3203 | vnc_unlock_display(vd); |
1fc62412 | 3204 | |
41b4bef6 | 3205 | QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) { |
6af998db | 3206 | rects += vnc_update_client(vs, has_dirty); |
6185c578 | 3207 | /* vs might be free()ed here */ |
703bc68f | 3208 | } |
bd023f95 | 3209 | |
2430ffe4 | 3210 | if (has_dirty && rects) { |
0f7b2864 GH |
3211 | vd->dcl.update_interval /= 2; |
3212 | if (vd->dcl.update_interval < VNC_REFRESH_INTERVAL_BASE) { | |
3213 | vd->dcl.update_interval = VNC_REFRESH_INTERVAL_BASE; | |
3214 | } | |
2430ffe4 | 3215 | } else { |
0f7b2864 GH |
3216 | vd->dcl.update_interval += VNC_REFRESH_INTERVAL_INC; |
3217 | if (vd->dcl.update_interval > VNC_REFRESH_INTERVAL_MAX) { | |
3218 | vd->dcl.update_interval = VNC_REFRESH_INTERVAL_MAX; | |
3219 | } | |
703bc68f SS |
3220 | } |
3221 | } | |
3222 | ||
04d2529d | 3223 | static void vnc_connect(VncDisplay *vd, QIOChannelSocket *sioc, |
2c8cf549 | 3224 | bool skipauth, bool websocket) |
3aa3eea3 | 3225 | { |
fedf0d35 | 3226 | VncState *vs = g_new0(VncState, 1); |
90cd03a3 | 3227 | bool first_client = QTAILQ_EMPTY(&vd->clients); |
7d964c9d CC |
3228 | int i; |
3229 | ||
ad6374c4 | 3230 | trace_vnc_client_connect(vs, sioc); |
6bf21f3d LQ |
3231 | vs->zrle = g_new0(VncZrle, 1); |
3232 | vs->tight = g_new0(VncTight, 1); | |
f31f9c10 | 3233 | vs->magic = VNC_MAGIC; |
04d2529d DB |
3234 | vs->sioc = sioc; |
3235 | object_ref(OBJECT(vs->sioc)); | |
3236 | vs->ioc = QIO_CHANNEL(sioc); | |
3237 | object_ref(OBJECT(vs->ioc)); | |
d616ccc5 | 3238 | vs->vd = vd; |
7e7e2ebc | 3239 | |
04d2529d DB |
3240 | buffer_init(&vs->input, "vnc-input/%p", sioc); |
3241 | buffer_init(&vs->output, "vnc-output/%p", sioc); | |
04d2529d | 3242 | buffer_init(&vs->jobs_buffer, "vnc-jobs_buffer/%p", sioc); |
543b9580 | 3243 | |
6bf21f3d LQ |
3244 | buffer_init(&vs->tight->tight, "vnc-tight/%p", sioc); |
3245 | buffer_init(&vs->tight->zlib, "vnc-tight-zlib/%p", sioc); | |
3246 | buffer_init(&vs->tight->gradient, "vnc-tight-gradient/%p", sioc); | |
543b9580 | 3247 | #ifdef CONFIG_VNC_JPEG |
6bf21f3d | 3248 | buffer_init(&vs->tight->jpeg, "vnc-tight-jpeg/%p", sioc); |
543b9580 | 3249 | #endif |
95f8510e | 3250 | #ifdef CONFIG_PNG |
6bf21f3d | 3251 | buffer_init(&vs->tight->png, "vnc-tight-png/%p", sioc); |
543b9580 | 3252 | #endif |
04d2529d | 3253 | buffer_init(&vs->zlib.zlib, "vnc-zlib/%p", sioc); |
6bf21f3d LQ |
3254 | buffer_init(&vs->zrle->zrle, "vnc-zrle/%p", sioc); |
3255 | buffer_init(&vs->zrle->fb, "vnc-zrle-fb/%p", sioc); | |
3256 | buffer_init(&vs->zrle->zlib, "vnc-zrle-zlib/%p", sioc); | |
543b9580 | 3257 | |
7e7e2ebc | 3258 | if (skipauth) { |
7d37435b PB |
3259 | vs->auth = VNC_AUTH_NONE; |
3260 | vs->subauth = VNC_AUTH_INVALID; | |
7e7e2ebc | 3261 | } else { |
f9148c8a DB |
3262 | if (websocket) { |
3263 | vs->auth = vd->ws_auth; | |
3264 | vs->subauth = VNC_AUTH_INVALID; | |
3265 | } else { | |
3266 | vs->auth = vd->auth; | |
3267 | vs->subauth = vd->subauth; | |
3268 | } | |
7e7e2ebc | 3269 | } |
04d2529d DB |
3270 | VNC_DEBUG("Client sioc=%p ws=%d auth=%d subauth=%d\n", |
3271 | sioc, websocket, vs->auth, vs->subauth); | |
7e7e2ebc | 3272 | |
7267c094 | 3273 | vs->lossy_rect = g_malloc0(VNC_STAT_ROWS * sizeof (*vs->lossy_rect)); |
7d964c9d | 3274 | for (i = 0; i < VNC_STAT_ROWS; ++i) { |
fedf0d35 | 3275 | vs->lossy_rect[i] = g_new0(uint8_t, VNC_STAT_COLS); |
7d964c9d | 3276 | } |
753b4053 | 3277 | |
04d2529d | 3278 | VNC_DEBUG("New client on socket %p\n", vs->sioc); |
0f7b2864 | 3279 | update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE); |
04d2529d | 3280 | qio_channel_set_blocking(vs->ioc, false, NULL); |
a75d6f07 BC |
3281 | if (vs->ioc_tag) { |
3282 | g_source_remove(vs->ioc_tag); | |
3283 | } | |
7536ee4b TH |
3284 | if (websocket) { |
3285 | vs->websocket = 1; | |
38e5756a | 3286 | if (vd->tlscreds) { |
04d2529d | 3287 | vs->ioc_tag = qio_channel_add_watch( |
2ddafce7 DH |
3288 | vs->ioc, G_IO_IN | G_IO_HUP | G_IO_ERR, |
3289 | vncws_tls_handshake_io, vs, NULL); | |
3e305e4a | 3290 | } else { |
04d2529d | 3291 | vs->ioc_tag = qio_channel_add_watch( |
2ddafce7 DH |
3292 | vs->ioc, G_IO_IN | G_IO_HUP | G_IO_ERR, |
3293 | vncws_handshake_io, vs, NULL); | |
0057a0d5 | 3294 | } |
04d2529d DB |
3295 | } else { |
3296 | vs->ioc_tag = qio_channel_add_watch( | |
2ddafce7 DH |
3297 | vs->ioc, G_IO_IN | G_IO_HUP | G_IO_ERR, |
3298 | vnc_client_io, vs, NULL); | |
7536ee4b | 3299 | } |
753b4053 | 3300 | |
4a80dba3 | 3301 | vnc_client_cache_addr(vs); |
fb6ba0d5 | 3302 | vnc_qmp_event(vs, QAPI_EVENT_VNC_CONNECTED); |
8cf36489 | 3303 | vnc_set_share_mode(vs, VNC_SHARE_MODE_CONNECTING); |
4a80dba3 | 3304 | |
753b4053 AL |
3305 | vs->last_x = -1; |
3306 | vs->last_y = -1; | |
3307 | ||
3308 | vs->as.freq = 44100; | |
3309 | vs->as.nchannels = 2; | |
85bc5852 | 3310 | vs->as.fmt = AUDIO_FORMAT_S16; |
753b4053 AL |
3311 | vs->as.endianness = 0; |
3312 | ||
bd023f95 | 3313 | qemu_mutex_init(&vs->output_mutex); |
175b2a6e | 3314 | vs->bh = qemu_bh_new(vnc_jobs_bh, vs); |
bd023f95 | 3315 | |
e5f34cdd | 3316 | QTAILQ_INSERT_TAIL(&vd->clients, vs, next); |
c7628bff GH |
3317 | if (first_client) { |
3318 | vnc_update_server_surface(vd); | |
3319 | } | |
1fc62412 | 3320 | |
1d0d59fe | 3321 | graphic_hw_update(vd->dcl.con); |
1fc62412 | 3322 | |
90cd03a3 | 3323 | if (!vs->websocket) { |
dbee9897 | 3324 | vnc_start_protocol(vs); |
90cd03a3 DB |
3325 | } |
3326 | ||
3327 | if (vd->num_connecting > vd->connections_limit) { | |
3328 | QTAILQ_FOREACH(vs, &vd->clients, next) { | |
3329 | if (vs->share_mode == VNC_SHARE_MODE_CONNECTING) { | |
3330 | vnc_disconnect_start(vs); | |
3331 | return; | |
3332 | } | |
3333 | } | |
3334 | } | |
3335 | } | |
3336 | ||
dbee9897 | 3337 | void vnc_start_protocol(VncState *vs) |
90cd03a3 | 3338 | { |
3aa3eea3 AZ |
3339 | vnc_write(vs, "RFB 003.008\n", 12); |
3340 | vnc_flush(vs); | |
3341 | vnc_read_when(vs, protocol_version, 12); | |
753b4053 | 3342 | |
37c34d9d AL |
3343 | vs->mouse_mode_notifier.notify = check_pointer_type_change; |
3344 | qemu_add_mouse_mode_change_notifier(&vs->mouse_mode_notifier); | |
3aa3eea3 AZ |
3345 | } |
3346 | ||
13e1d0e7 DB |
3347 | static void vnc_listen_io(QIONetListener *listener, |
3348 | QIOChannelSocket *cioc, | |
3349 | void *opaque) | |
24236869 | 3350 | { |
bf01c179 | 3351 | VncDisplay *vd = opaque; |
13e1d0e7 | 3352 | bool isWebsock = listener == vd->wslistener; |
7536ee4b | 3353 | |
13e1d0e7 DB |
3354 | qio_channel_set_name(QIO_CHANNEL(cioc), |
3355 | isWebsock ? "vnc-ws-server" : "vnc-server"); | |
3356 | qio_channel_set_delay(QIO_CHANNEL(cioc), false); | |
3357 | vnc_connect(vd, cioc, false, isWebsock); | |
7536ee4b | 3358 | } |
7536ee4b | 3359 | |
7c20b4a3 | 3360 | static const DisplayChangeListenerOps dcl_ops = { |
34da30af BH |
3361 | .dpy_name = "vnc", |
3362 | .dpy_refresh = vnc_refresh, | |
34da30af BH |
3363 | .dpy_gfx_update = vnc_dpy_update, |
3364 | .dpy_gfx_switch = vnc_dpy_switch, | |
3365 | .dpy_gfx_check_format = qemu_pixman_check_format, | |
3366 | .dpy_mouse_set = vnc_mouse_set, | |
3367 | .dpy_cursor_define = vnc_dpy_cursor_define, | |
7c20b4a3 GH |
3368 | }; |
3369 | ||
ab4f931e | 3370 | void vnc_display_init(const char *id, Error **errp) |
24236869 | 3371 | { |
bf01c179 | 3372 | VncDisplay *vd; |
4db14629 GH |
3373 | |
3374 | if (vnc_display_find(id) != NULL) { | |
3375 | return; | |
3376 | } | |
bf01c179 | 3377 | vd = g_malloc0(sizeof(*vd)); |
24236869 | 3378 | |
bf01c179 DB |
3379 | vd->id = strdup(id); |
3380 | QTAILQ_INSERT_TAIL(&vnc_displays, vd, next); | |
24236869 | 3381 | |
bf01c179 DB |
3382 | QTAILQ_INIT(&vd->clients); |
3383 | vd->expires = TIME_MAX; | |
24236869 | 3384 | |
40066175 GH |
3385 | if (keyboard_layout) { |
3386 | trace_vnc_key_map_init(keyboard_layout); | |
ab4f931e FL |
3387 | vd->kbd_layout = init_keyboard_layout(name2keysym, |
3388 | keyboard_layout, errp); | |
40066175 | 3389 | } else { |
ab4f931e | 3390 | vd->kbd_layout = init_keyboard_layout(name2keysym, "en-us", errp); |
40066175 | 3391 | } |
24236869 | 3392 | |
bf01c179 | 3393 | if (!vd->kbd_layout) { |
ab4f931e | 3394 | return; |
bf01c179 | 3395 | } |
24236869 | 3396 | |
bf01c179 DB |
3397 | vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE; |
3398 | vd->connections_limit = 32; | |
12e29b16 | 3399 | |
bf01c179 | 3400 | qemu_mutex_init(&vd->mutex); |
bd023f95 | 3401 | vnc_start_worker_thread(); |
bd023f95 | 3402 | |
bf01c179 DB |
3403 | vd->dcl.ops = &dcl_ops; |
3404 | register_displaychangelistener(&vd->dcl); | |
c2f2ba49 | 3405 | vd->kbd = qkbd_state_init(vd->dcl.con); |
71cab5ca TS |
3406 | } |
3407 | ||
6f43024c | 3408 | |
bf01c179 | 3409 | static void vnc_display_close(VncDisplay *vd) |
71cab5ca | 3410 | { |
bf01c179 | 3411 | if (!vd) { |
452b4d88 | 3412 | return; |
bf01c179 DB |
3413 | } |
3414 | vd->is_unix = false; | |
13e1d0e7 DB |
3415 | |
3416 | if (vd->listener) { | |
3417 | qio_net_listener_disconnect(vd->listener); | |
3418 | object_unref(OBJECT(vd->listener)); | |
71cab5ca | 3419 | } |
13e1d0e7 | 3420 | vd->listener = NULL; |
4ee74fa7 | 3421 | |
13e1d0e7 DB |
3422 | if (vd->wslistener) { |
3423 | qio_net_listener_disconnect(vd->wslistener); | |
3424 | object_unref(OBJECT(vd->wslistener)); | |
7536ee4b | 3425 | } |
13e1d0e7 | 3426 | vd->wslistener = NULL; |
4ee74fa7 | 3427 | |
bf01c179 DB |
3428 | vd->auth = VNC_AUTH_INVALID; |
3429 | vd->subauth = VNC_AUTH_INVALID; | |
3430 | if (vd->tlscreds) { | |
521534df | 3431 | object_unref(OBJECT(vd->tlscreds)); |
bf01c179 | 3432 | vd->tlscreds = NULL; |
3e305e4a | 3433 | } |
b76806d4 DB |
3434 | if (vd->tlsauthz) { |
3435 | object_unparent(OBJECT(vd->tlsauthz)); | |
3436 | vd->tlsauthz = NULL; | |
3437 | } | |
3438 | g_free(vd->tlsauthzid); | |
3439 | vd->tlsauthzid = NULL; | |
a54f0d2b PO |
3440 | if (vd->lock_key_sync) { |
3441 | qemu_remove_led_event_handler(vd->led); | |
2dc120be | 3442 | vd->led = NULL; |
a54f0d2b | 3443 | } |
b76806d4 DB |
3444 | #ifdef CONFIG_VNC_SASL |
3445 | if (vd->sasl.authz) { | |
3446 | object_unparent(OBJECT(vd->sasl.authz)); | |
3447 | vd->sasl.authz = NULL; | |
3448 | } | |
3449 | g_free(vd->sasl.authzid); | |
3450 | vd->sasl.authzid = NULL; | |
3451 | #endif | |
70848515 TS |
3452 | } |
3453 | ||
14f7143e | 3454 | int vnc_display_password(const char *id, const char *password) |
70848515 | 3455 | { |
bf01c179 | 3456 | VncDisplay *vd = vnc_display_find(id); |
70848515 | 3457 | |
bf01c179 | 3458 | if (!vd) { |
a6aa9d3e | 3459 | return -EINVAL; |
7ef92331 | 3460 | } |
bf01c179 | 3461 | if (vd->auth == VNC_AUTH_NONE) { |
cf864569 | 3462 | error_printf_unless_qmp("If you want use passwords please enable " |
7ea7d36e | 3463 | "password auth using '-vnc ${dpy},password'.\n"); |
cf864569 | 3464 | return -EINVAL; |
1cd20f8b AL |
3465 | } |
3466 | ||
bf01c179 DB |
3467 | g_free(vd->password); |
3468 | vd->password = g_strdup(password); | |
a6aa9d3e LC |
3469 | |
3470 | return 0; | |
71cab5ca TS |
3471 | } |
3472 | ||
14f7143e | 3473 | int vnc_display_pw_expire(const char *id, time_t expires) |
3c9405a0 | 3474 | { |
bf01c179 | 3475 | VncDisplay *vd = vnc_display_find(id); |
3c9405a0 | 3476 | |
bf01c179 | 3477 | if (!vd) { |
1643f2b2 GH |
3478 | return -EINVAL; |
3479 | } | |
3480 | ||
bf01c179 | 3481 | vd->expires = expires; |
3c9405a0 GH |
3482 | return 0; |
3483 | } | |
3484 | ||
bf01c179 | 3485 | static void vnc_display_print_local_addr(VncDisplay *vd) |
f92f8afe | 3486 | { |
bd269ebc | 3487 | SocketAddress *addr; |
d616ccc5 | 3488 | |
13e1d0e7 | 3489 | if (!vd->listener || !vd->listener->nsioc) { |
4ee74fa7 DB |
3490 | return; |
3491 | } | |
3492 | ||
b94b3c02 | 3493 | addr = qio_channel_socket_get_local_address(vd->listener->sioc[0], NULL); |
04d2529d | 3494 | if (!addr) { |
33df7bf3 | 3495 | return; |
04d2529d DB |
3496 | } |
3497 | ||
bd269ebc MA |
3498 | if (addr->type != SOCKET_ADDRESS_TYPE_INET) { |
3499 | qapi_free_SocketAddress(addr); | |
33df7bf3 | 3500 | return; |
04d2529d | 3501 | } |
33df7bf3 | 3502 | error_printf_unless_qmp("VNC server running on %s:%s\n", |
bd269ebc MA |
3503 | addr->u.inet.host, |
3504 | addr->u.inet.port); | |
3505 | qapi_free_SocketAddress(addr); | |
f92f8afe AL |
3506 | } |
3507 | ||
4db14629 GH |
3508 | static QemuOptsList qemu_vnc_opts = { |
3509 | .name = "vnc", | |
3510 | .head = QTAILQ_HEAD_INITIALIZER(qemu_vnc_opts.head), | |
3511 | .implied_opt_name = "vnc", | |
3512 | .desc = { | |
3513 | { | |
3514 | .name = "vnc", | |
3515 | .type = QEMU_OPT_STRING, | |
3516 | },{ | |
3517 | .name = "websocket", | |
3518 | .type = QEMU_OPT_STRING, | |
3519 | },{ | |
3e305e4a DB |
3520 | .name = "tls-creds", |
3521 | .type = QEMU_OPT_STRING, | |
4db14629 GH |
3522 | },{ |
3523 | .name = "share", | |
3524 | .type = QEMU_OPT_STRING, | |
1d0d59fe GH |
3525 | },{ |
3526 | .name = "display", | |
3527 | .type = QEMU_OPT_STRING, | |
3528 | },{ | |
3529 | .name = "head", | |
3530 | .type = QEMU_OPT_NUMBER, | |
e5f34cdd GH |
3531 | },{ |
3532 | .name = "connections", | |
3533 | .type = QEMU_OPT_NUMBER, | |
88428b7a GA |
3534 | },{ |
3535 | .name = "to", | |
3536 | .type = QEMU_OPT_NUMBER, | |
3537 | },{ | |
3538 | .name = "ipv4", | |
3539 | .type = QEMU_OPT_BOOL, | |
3540 | },{ | |
3541 | .name = "ipv6", | |
3542 | .type = QEMU_OPT_BOOL, | |
4db14629 GH |
3543 | },{ |
3544 | .name = "password", | |
3545 | .type = QEMU_OPT_BOOL, | |
6c6840e9 DB |
3546 | },{ |
3547 | .name = "password-secret", | |
3548 | .type = QEMU_OPT_STRING, | |
4db14629 GH |
3549 | },{ |
3550 | .name = "reverse", | |
3551 | .type = QEMU_OPT_BOOL, | |
3552 | },{ | |
3553 | .name = "lock-key-sync", | |
3554 | .type = QEMU_OPT_BOOL, | |
c5ce8333 GH |
3555 | },{ |
3556 | .name = "key-delay-ms", | |
3557 | .type = QEMU_OPT_NUMBER, | |
4db14629 GH |
3558 | },{ |
3559 | .name = "sasl", | |
3560 | .type = QEMU_OPT_BOOL, | |
55cf09a0 DB |
3561 | },{ |
3562 | .name = "tls-authz", | |
3563 | .type = QEMU_OPT_STRING, | |
3564 | },{ | |
3565 | .name = "sasl-authz", | |
3566 | .type = QEMU_OPT_STRING, | |
4db14629 GH |
3567 | },{ |
3568 | .name = "lossy", | |
3569 | .type = QEMU_OPT_BOOL, | |
3570 | },{ | |
3571 | .name = "non-adaptive", | |
3572 | .type = QEMU_OPT_BOOL, | |
f0b9f36d KZ |
3573 | },{ |
3574 | .name = "audiodev", | |
3575 | .type = QEMU_OPT_STRING, | |
7b5fa0b5 DB |
3576 | },{ |
3577 | .name = "power-control", | |
3578 | .type = QEMU_OPT_BOOL, | |
4db14629 GH |
3579 | }, |
3580 | { /* end of list */ } | |
3581 | }, | |
3582 | }; | |
3583 | ||
0dd72e15 | 3584 | |
3e305e4a | 3585 | static int |
eda24e18 DB |
3586 | vnc_display_setup_auth(int *auth, |
3587 | int *subauth, | |
3588 | QCryptoTLSCreds *tlscreds, | |
0dd72e15 DB |
3589 | bool password, |
3590 | bool sasl, | |
3e305e4a DB |
3591 | bool websocket, |
3592 | Error **errp) | |
0dd72e15 DB |
3593 | { |
3594 | /* | |
3595 | * We have a choice of 3 authentication options | |
3596 | * | |
3597 | * 1. none | |
3598 | * 2. vnc | |
3599 | * 3. sasl | |
3600 | * | |
3601 | * The channel can be run in 2 modes | |
3602 | * | |
3603 | * 1. clear | |
3604 | * 2. tls | |
3605 | * | |
3606 | * And TLS can use 2 types of credentials | |
3607 | * | |
3608 | * 1. anon | |
3609 | * 2. x509 | |
3610 | * | |
3611 | * We thus have 9 possible logical combinations | |
3612 | * | |
3613 | * 1. clear + none | |
3614 | * 2. clear + vnc | |
3615 | * 3. clear + sasl | |
3616 | * 4. tls + anon + none | |
3617 | * 5. tls + anon + vnc | |
3618 | * 6. tls + anon + sasl | |
3619 | * 7. tls + x509 + none | |
3620 | * 8. tls + x509 + vnc | |
3621 | * 9. tls + x509 + sasl | |
3622 | * | |
3623 | * These need to be mapped into the VNC auth schemes | |
3624 | * in an appropriate manner. In regular VNC, all the | |
3625 | * TLS options get mapped into VNC_AUTH_VENCRYPT | |
3626 | * sub-auth types. | |
f9148c8a DB |
3627 | * |
3628 | * In websockets, the https:// protocol already provides | |
3629 | * TLS support, so there is no need to make use of the | |
3630 | * VeNCrypt extension. Furthermore, websockets browser | |
3631 | * clients could not use VeNCrypt even if they wanted to, | |
3632 | * as they cannot control when the TLS handshake takes | |
3633 | * place. Thus there is no option but to rely on https://, | |
3634 | * meaning combinations 4->6 and 7->9 will be mapped to | |
3635 | * VNC auth schemes in the same way as combos 1->3. | |
3636 | * | |
3637 | * Regardless of fact that we have a different mapping to | |
3638 | * VNC auth mechs for plain VNC vs websockets VNC, the end | |
3639 | * result has the same security characteristics. | |
0dd72e15 | 3640 | */ |
eda24e18 DB |
3641 | if (websocket || !tlscreds) { |
3642 | if (password) { | |
0dd72e15 | 3643 | VNC_DEBUG("Initializing VNC server with password auth\n"); |
eda24e18 DB |
3644 | *auth = VNC_AUTH_VNC; |
3645 | } else if (sasl) { | |
3646 | VNC_DEBUG("Initializing VNC server with SASL auth\n"); | |
3647 | *auth = VNC_AUTH_SASL; | |
f9148c8a | 3648 | } else { |
eda24e18 DB |
3649 | VNC_DEBUG("Initializing VNC server with no auth\n"); |
3650 | *auth = VNC_AUTH_NONE; | |
f9148c8a | 3651 | } |
eda24e18 DB |
3652 | *subauth = VNC_AUTH_INVALID; |
3653 | } else { | |
3654 | bool is_x509 = object_dynamic_cast(OBJECT(tlscreds), | |
3655 | TYPE_QCRYPTO_TLS_CREDS_X509) != NULL; | |
3656 | bool is_anon = object_dynamic_cast(OBJECT(tlscreds), | |
3657 | TYPE_QCRYPTO_TLS_CREDS_ANON) != NULL; | |
3658 | ||
3659 | if (!is_x509 && !is_anon) { | |
3660 | error_setg(errp, | |
3661 | "Unsupported TLS cred type %s", | |
3662 | object_get_typename(OBJECT(tlscreds))); | |
3663 | return -1; | |
3664 | } | |
3665 | *auth = VNC_AUTH_VENCRYPT; | |
3666 | if (password) { | |
3667 | if (is_x509) { | |
3668 | VNC_DEBUG("Initializing VNC server with x509 password auth\n"); | |
3669 | *subauth = VNC_AUTH_VENCRYPT_X509VNC; | |
3670 | } else { | |
3671 | VNC_DEBUG("Initializing VNC server with TLS password auth\n"); | |
3672 | *subauth = VNC_AUTH_VENCRYPT_TLSVNC; | |
3673 | } | |
3674 | ||
3675 | } else if (sasl) { | |
3676 | if (is_x509) { | |
0dd72e15 | 3677 | VNC_DEBUG("Initializing VNC server with x509 SASL auth\n"); |
eda24e18 | 3678 | *subauth = VNC_AUTH_VENCRYPT_X509SASL; |
3e305e4a | 3679 | } else { |
eda24e18 DB |
3680 | VNC_DEBUG("Initializing VNC server with TLS SASL auth\n"); |
3681 | *subauth = VNC_AUTH_VENCRYPT_TLSSASL; | |
0dd72e15 DB |
3682 | } |
3683 | } else { | |
eda24e18 | 3684 | if (is_x509) { |
0dd72e15 | 3685 | VNC_DEBUG("Initializing VNC server with x509 no auth\n"); |
eda24e18 | 3686 | *subauth = VNC_AUTH_VENCRYPT_X509NONE; |
3e305e4a | 3687 | } else { |
eda24e18 DB |
3688 | VNC_DEBUG("Initializing VNC server with TLS no auth\n"); |
3689 | *subauth = VNC_AUTH_VENCRYPT_TLSNONE; | |
0dd72e15 | 3690 | } |
f9148c8a | 3691 | } |
0dd72e15 | 3692 | } |
3e305e4a DB |
3693 | return 0; |
3694 | } | |
3695 | ||
3696 | ||
275e0d61 DB |
3697 | static int vnc_display_get_address(const char *addrstr, |
3698 | bool websocket, | |
e5766eb4 | 3699 | bool reverse, |
275e0d61 DB |
3700 | int displaynum, |
3701 | int to, | |
3702 | bool has_ipv4, | |
3703 | bool has_ipv6, | |
3704 | bool ipv4, | |
3705 | bool ipv6, | |
bd269ebc | 3706 | SocketAddress **retaddr, |
275e0d61 DB |
3707 | Error **errp) |
3708 | { | |
3709 | int ret = -1; | |
bd269ebc | 3710 | SocketAddress *addr = NULL; |
275e0d61 | 3711 | |
bd269ebc | 3712 | addr = g_new0(SocketAddress, 1); |
275e0d61 DB |
3713 | |
3714 | if (strncmp(addrstr, "unix:", 5) == 0) { | |
bd269ebc MA |
3715 | addr->type = SOCKET_ADDRESS_TYPE_UNIX; |
3716 | addr->u.q_unix.path = g_strdup(addrstr + 5); | |
275e0d61 DB |
3717 | |
3718 | if (websocket) { | |
3719 | error_setg(errp, "UNIX sockets not supported with websock"); | |
3720 | goto cleanup; | |
3721 | } | |
3722 | ||
3723 | if (to) { | |
3724 | error_setg(errp, "Port range not support with UNIX socket"); | |
3725 | goto cleanup; | |
3726 | } | |
3727 | ret = 0; | |
3728 | } else { | |
3729 | const char *port; | |
3730 | size_t hostlen; | |
3731 | unsigned long long baseport = 0; | |
3732 | InetSocketAddress *inet; | |
3733 | ||
3734 | port = strrchr(addrstr, ':'); | |
3735 | if (!port) { | |
3736 | if (websocket) { | |
3737 | hostlen = 0; | |
3738 | port = addrstr; | |
3739 | } else { | |
3740 | error_setg(errp, "no vnc port specified"); | |
3741 | goto cleanup; | |
3742 | } | |
3743 | } else { | |
3744 | hostlen = port - addrstr; | |
3745 | port++; | |
3746 | if (*port == '\0') { | |
3747 | error_setg(errp, "vnc port cannot be empty"); | |
3748 | goto cleanup; | |
3749 | } | |
3750 | } | |
3751 | ||
bd269ebc MA |
3752 | addr->type = SOCKET_ADDRESS_TYPE_INET; |
3753 | inet = &addr->u.inet; | |
275e0d61 DB |
3754 | if (addrstr[0] == '[' && addrstr[hostlen - 1] == ']') { |
3755 | inet->host = g_strndup(addrstr + 1, hostlen - 2); | |
3756 | } else { | |
3757 | inet->host = g_strndup(addrstr, hostlen); | |
3758 | } | |
3759 | /* plain VNC port is just an offset, for websocket | |
3760 | * port is absolute */ | |
3761 | if (websocket) { | |
3762 | if (g_str_equal(addrstr, "") || | |
3763 | g_str_equal(addrstr, "on")) { | |
396f935a DB |
3764 | if (displaynum == -1) { |
3765 | error_setg(errp, "explicit websocket port is required"); | |
3766 | goto cleanup; | |
3767 | } | |
275e0d61 DB |
3768 | inet->port = g_strdup_printf( |
3769 | "%d", displaynum + 5700); | |
3770 | if (to) { | |
3771 | inet->has_to = true; | |
3772 | inet->to = to + 5700; | |
3773 | } | |
3774 | } else { | |
3775 | inet->port = g_strdup(port); | |
3776 | } | |
3777 | } else { | |
e5766eb4 | 3778 | int offset = reverse ? 0 : 5900; |
275e0d61 DB |
3779 | if (parse_uint_full(port, &baseport, 10) < 0) { |
3780 | error_setg(errp, "can't convert to a number: %s", port); | |
3781 | goto cleanup; | |
3782 | } | |
3783 | if (baseport > 65535 || | |
e5766eb4 | 3784 | baseport + offset > 65535) { |
275e0d61 DB |
3785 | error_setg(errp, "port %s out of range", port); |
3786 | goto cleanup; | |
3787 | } | |
3788 | inet->port = g_strdup_printf( | |
e5766eb4 | 3789 | "%d", (int)baseport + offset); |
275e0d61 DB |
3790 | |
3791 | if (to) { | |
3792 | inet->has_to = true; | |
e5766eb4 | 3793 | inet->to = to + offset; |
275e0d61 DB |
3794 | } |
3795 | } | |
3796 | ||
3797 | inet->ipv4 = ipv4; | |
3798 | inet->has_ipv4 = has_ipv4; | |
3799 | inet->ipv6 = ipv6; | |
3800 | inet->has_ipv6 = has_ipv6; | |
3801 | ||
3802 | ret = baseport; | |
3803 | } | |
3804 | ||
3805 | *retaddr = addr; | |
3806 | ||
3807 | cleanup: | |
3808 | if (ret < 0) { | |
bd269ebc | 3809 | qapi_free_SocketAddress(addr); |
275e0d61 DB |
3810 | } |
3811 | return ret; | |
3812 | } | |
3813 | ||
3814 | static int vnc_display_get_addresses(QemuOpts *opts, | |
e5766eb4 | 3815 | bool reverse, |
d708f99d VSO |
3816 | SocketAddressList **saddr_list_ret, |
3817 | SocketAddressList **wsaddr_list_ret, | |
275e0d61 DB |
3818 | Error **errp) |
3819 | { | |
bd269ebc MA |
3820 | SocketAddress *saddr = NULL; |
3821 | SocketAddress *wsaddr = NULL; | |
d708f99d VSO |
3822 | g_autoptr(SocketAddressList) saddr_list = NULL; |
3823 | SocketAddressList **saddr_tail = &saddr_list; | |
3824 | SocketAddress *single_saddr = NULL; | |
3825 | g_autoptr(SocketAddressList) wsaddr_list = NULL; | |
3826 | SocketAddressList **wsaddr_tail = &wsaddr_list; | |
396f935a DB |
3827 | QemuOptsIter addriter; |
3828 | const char *addr; | |
275e0d61 DB |
3829 | int to = qemu_opt_get_number(opts, "to", 0); |
3830 | bool has_ipv4 = qemu_opt_get(opts, "ipv4"); | |
3831 | bool has_ipv6 = qemu_opt_get(opts, "ipv6"); | |
3832 | bool ipv4 = qemu_opt_get_bool(opts, "ipv4", false); | |
3833 | bool ipv6 = qemu_opt_get_bool(opts, "ipv6", false); | |
396f935a | 3834 | int displaynum = -1; |
275e0d61 | 3835 | |
396f935a DB |
3836 | addr = qemu_opt_get(opts, "vnc"); |
3837 | if (addr == NULL || g_str_equal(addr, "none")) { | |
d708f99d | 3838 | return 0; |
396f935a DB |
3839 | } |
3840 | if (qemu_opt_get(opts, "websocket") && | |
275e0d61 DB |
3841 | !qcrypto_hash_supports(QCRYPTO_HASH_ALG_SHA1)) { |
3842 | error_setg(errp, | |
3843 | "SHA1 hash support is required for websockets"); | |
d708f99d | 3844 | return -1; |
396f935a DB |
3845 | } |
3846 | ||
3847 | qemu_opt_iter_init(&addriter, opts, "vnc"); | |
3848 | while ((addr = qemu_opt_iter_next(&addriter)) != NULL) { | |
3849 | int rv; | |
e5766eb4 | 3850 | rv = vnc_display_get_address(addr, false, reverse, 0, to, |
396f935a DB |
3851 | has_ipv4, has_ipv6, |
3852 | ipv4, ipv6, | |
3853 | &saddr, errp); | |
3854 | if (rv < 0) { | |
d708f99d | 3855 | return -1; |
396f935a DB |
3856 | } |
3857 | /* Historical compat - first listen address can be used | |
3858 | * to set the default websocket port | |
3859 | */ | |
3860 | if (displaynum == -1) { | |
3861 | displaynum = rv; | |
3862 | } | |
d708f99d | 3863 | QAPI_LIST_APPEND(saddr_tail, saddr); |
275e0d61 DB |
3864 | } |
3865 | ||
d708f99d VSO |
3866 | if (saddr_list && !saddr_list->next) { |
3867 | single_saddr = saddr_list->value; | |
3868 | } else { | |
3869 | /* | |
3870 | * If we had multiple primary displays, we don't do defaults | |
3871 | * for websocket, and require explicit config instead. | |
3872 | */ | |
396f935a | 3873 | displaynum = -1; |
275e0d61 | 3874 | } |
396f935a DB |
3875 | |
3876 | qemu_opt_iter_init(&addriter, opts, "websocket"); | |
3877 | while ((addr = qemu_opt_iter_next(&addriter)) != NULL) { | |
e5766eb4 | 3878 | if (vnc_display_get_address(addr, true, reverse, displaynum, to, |
275e0d61 DB |
3879 | has_ipv4, has_ipv6, |
3880 | ipv4, ipv6, | |
3881 | &wsaddr, errp) < 0) { | |
d708f99d | 3882 | return -1; |
275e0d61 | 3883 | } |
396f935a DB |
3884 | |
3885 | /* Historical compat - if only a single listen address was | |
3886 | * provided, then this is used to set the default listen | |
3887 | * address for websocket too | |
3888 | */ | |
d708f99d VSO |
3889 | if (single_saddr && |
3890 | single_saddr->type == SOCKET_ADDRESS_TYPE_INET && | |
bd269ebc MA |
3891 | wsaddr->type == SOCKET_ADDRESS_TYPE_INET && |
3892 | g_str_equal(wsaddr->u.inet.host, "") && | |
d708f99d | 3893 | !g_str_equal(single_saddr->u.inet.host, "")) { |
bd269ebc | 3894 | g_free(wsaddr->u.inet.host); |
d708f99d | 3895 | wsaddr->u.inet.host = g_strdup(single_saddr->u.inet.host); |
275e0d61 | 3896 | } |
396f935a | 3897 | |
d708f99d | 3898 | QAPI_LIST_APPEND(wsaddr_tail, wsaddr); |
275e0d61 | 3899 | } |
275e0d61 | 3900 | |
d708f99d VSO |
3901 | *saddr_list_ret = g_steal_pointer(&saddr_list); |
3902 | *wsaddr_list_ret = g_steal_pointer(&wsaddr_list); | |
3903 | return 0; | |
275e0d61 DB |
3904 | } |
3905 | ||
8bd22f47 | 3906 | static int vnc_display_connect(VncDisplay *vd, |
d708f99d VSO |
3907 | SocketAddressList *saddr_list, |
3908 | SocketAddressList *wsaddr_list, | |
8bd22f47 DB |
3909 | Error **errp) |
3910 | { | |
3911 | /* connect to viewer */ | |
3912 | QIOChannelSocket *sioc = NULL; | |
d708f99d | 3913 | if (wsaddr_list) { |
8bd22f47 DB |
3914 | error_setg(errp, "Cannot use websockets in reverse mode"); |
3915 | return -1; | |
3916 | } | |
d708f99d | 3917 | if (!saddr_list || saddr_list->next) { |
396f935a DB |
3918 | error_setg(errp, "Expected a single address in reverse mode"); |
3919 | return -1; | |
3920 | } | |
bd269ebc | 3921 | /* TODO SOCKET_ADDRESS_TYPE_FD when fd has AF_UNIX */ |
d708f99d | 3922 | vd->is_unix = saddr_list->value->type == SOCKET_ADDRESS_TYPE_UNIX; |
8bd22f47 DB |
3923 | sioc = qio_channel_socket_new(); |
3924 | qio_channel_set_name(QIO_CHANNEL(sioc), "vnc-reverse"); | |
d708f99d | 3925 | if (qio_channel_socket_connect_sync(sioc, saddr_list->value, errp) < 0) { |
5f8679fe | 3926 | object_unref(OBJECT(sioc)); |
8bd22f47 DB |
3927 | return -1; |
3928 | } | |
3929 | vnc_connect(vd, sioc, false, false); | |
3930 | object_unref(OBJECT(sioc)); | |
3931 | return 0; | |
3932 | } | |
3933 | ||
3934 | ||
8bd22f47 | 3935 | static int vnc_display_listen(VncDisplay *vd, |
d708f99d VSO |
3936 | SocketAddressList *saddr_list, |
3937 | SocketAddressList *wsaddr_list, | |
8bd22f47 DB |
3938 | Error **errp) |
3939 | { | |
d708f99d | 3940 | SocketAddressList *el; |
8bd22f47 | 3941 | |
d708f99d | 3942 | if (saddr_list) { |
13e1d0e7 DB |
3943 | vd->listener = qio_net_listener_new(); |
3944 | qio_net_listener_set_name(vd->listener, "vnc-listen"); | |
d708f99d | 3945 | for (el = saddr_list; el; el = el->next) { |
13e1d0e7 | 3946 | if (qio_net_listener_open_sync(vd->listener, |
d708f99d | 3947 | el->value, 1, |
13e1d0e7 DB |
3948 | errp) < 0) { |
3949 | return -1; | |
3950 | } | |
396f935a | 3951 | } |
13e1d0e7 DB |
3952 | |
3953 | qio_net_listener_set_client_func(vd->listener, | |
3954 | vnc_listen_io, vd, NULL); | |
8bd22f47 | 3955 | } |
13e1d0e7 | 3956 | |
d708f99d | 3957 | if (wsaddr_list) { |
13e1d0e7 DB |
3958 | vd->wslistener = qio_net_listener_new(); |
3959 | qio_net_listener_set_name(vd->wslistener, "vnc-ws-listen"); | |
d708f99d | 3960 | for (el = wsaddr_list; el; el = el->next) { |
13e1d0e7 | 3961 | if (qio_net_listener_open_sync(vd->wslistener, |
d708f99d | 3962 | el->value, 1, |
13e1d0e7 DB |
3963 | errp) < 0) { |
3964 | return -1; | |
3965 | } | |
396f935a | 3966 | } |
13e1d0e7 DB |
3967 | |
3968 | qio_net_listener_set_client_func(vd->wslistener, | |
3969 | vnc_listen_io, vd, NULL); | |
8bd22f47 DB |
3970 | } |
3971 | ||
3972 | return 0; | |
3973 | } | |
3974 | ||
abea1946 VSO |
3975 | bool vnc_display_update(DisplayUpdateOptionsVNC *arg, Error **errp) |
3976 | { | |
3977 | VncDisplay *vd = vnc_display_find(NULL); | |
3978 | ||
3979 | if (!vd) { | |
3980 | error_setg(errp, "Can not find vnc display"); | |
3981 | return false; | |
3982 | } | |
3983 | ||
3984 | if (arg->has_addresses) { | |
3985 | if (vd->listener) { | |
3986 | qio_net_listener_disconnect(vd->listener); | |
3987 | object_unref(OBJECT(vd->listener)); | |
3988 | vd->listener = NULL; | |
3989 | } | |
3990 | ||
3991 | if (vnc_display_listen(vd, arg->addresses, NULL, errp) < 0) { | |
3992 | return false; | |
3993 | } | |
3994 | } | |
3995 | ||
3996 | return true; | |
3997 | } | |
8bd22f47 | 3998 | |
4db14629 | 3999 | void vnc_display_open(const char *id, Error **errp) |
71cab5ca | 4000 | { |
bf01c179 | 4001 | VncDisplay *vd = vnc_display_find(id); |
4db14629 | 4002 | QemuOpts *opts = qemu_opts_find(&qemu_vnc_opts, id); |
d708f99d VSO |
4003 | g_autoptr(SocketAddressList) saddr_list = NULL; |
4004 | g_autoptr(SocketAddressList) wsaddr_list = NULL; | |
e2a11d9d | 4005 | const char *share, *device_id; |
1d0d59fe | 4006 | QemuConsole *con; |
a2c72de0 GA |
4007 | bool password = false; |
4008 | bool reverse = false; | |
3e305e4a | 4009 | const char *credid; |
a2c72de0 | 4010 | bool sasl = false; |
55cf09a0 DB |
4011 | const char *tlsauthz; |
4012 | const char *saslauthz; | |
3a0558b5 | 4013 | int lock_key_sync = 1; |
c5ce8333 | 4014 | int key_delay_ms; |
f0b9f36d | 4015 | const char *audiodev; |
6c6840e9 | 4016 | const char *passwordSecret; |
71cab5ca | 4017 | |
bf01c179 | 4018 | if (!vd) { |
2d55f0e8 PB |
4019 | error_setg(errp, "VNC display not active"); |
4020 | return; | |
4021 | } | |
bf01c179 | 4022 | vnc_display_close(vd); |
24236869 | 4023 | |
4db14629 GH |
4024 | if (!opts) { |
4025 | return; | |
4026 | } | |
274c3b52 | 4027 | |
e5766eb4 | 4028 | reverse = qemu_opt_get_bool(opts, "reverse", false); |
d708f99d VSO |
4029 | if (vnc_display_get_addresses(opts, reverse, &saddr_list, &wsaddr_list, |
4030 | errp) < 0) { | |
e5560329 | 4031 | goto fail; |
e2a11d9d | 4032 | } |
e5560329 | 4033 | |
6c6840e9 DB |
4034 | |
4035 | passwordSecret = qemu_opt_get(opts, "password-secret"); | |
4036 | if (passwordSecret) { | |
4037 | if (qemu_opt_get(opts, "password")) { | |
4038 | error_setg(errp, | |
4039 | "'password' flag is redundant with 'password-secret'"); | |
4040 | goto fail; | |
4041 | } | |
4042 | vd->password = qcrypto_secret_lookup_as_utf8(passwordSecret, | |
4043 | errp); | |
4044 | if (!vd->password) { | |
4045 | goto fail; | |
4046 | } | |
4047 | password = true; | |
4048 | } else { | |
4049 | password = qemu_opt_get_bool(opts, "password", false); | |
4050 | } | |
800567a6 | 4051 | if (password) { |
800567a6 | 4052 | if (!qcrypto_cipher_supports( |
83bee4b5 | 4053 | QCRYPTO_CIPHER_ALG_DES, QCRYPTO_CIPHER_MODE_ECB)) { |
800567a6 | 4054 | error_setg(errp, |
83bee4b5 | 4055 | "Cipher backend does not support DES algorithm"); |
800567a6 DB |
4056 | goto fail; |
4057 | } | |
4db14629 GH |
4058 | } |
4059 | ||
4db14629 | 4060 | lock_key_sync = qemu_opt_get_bool(opts, "lock-key-sync", true); |
d3b0db6d | 4061 | key_delay_ms = qemu_opt_get_number(opts, "key-delay-ms", 10); |
4db14629 | 4062 | sasl = qemu_opt_get_bool(opts, "sasl", false); |
d169f04b DB |
4063 | #ifndef CONFIG_VNC_SASL |
4064 | if (sasl) { | |
4065 | error_setg(errp, "VNC SASL auth requires cyrus-sasl support"); | |
4066 | goto fail; | |
4067 | } | |
4068 | #endif /* CONFIG_VNC_SASL */ | |
3e305e4a DB |
4069 | credid = qemu_opt_get(opts, "tls-creds"); |
4070 | if (credid) { | |
4071 | Object *creds; | |
3e305e4a DB |
4072 | creds = object_resolve_path_component( |
4073 | object_get_objects_root(), credid); | |
4074 | if (!creds) { | |
4075 | error_setg(errp, "No TLS credentials with id '%s'", | |
4076 | credid); | |
4077 | goto fail; | |
4078 | } | |
bf01c179 | 4079 | vd->tlscreds = (QCryptoTLSCreds *) |
3e305e4a DB |
4080 | object_dynamic_cast(creds, |
4081 | TYPE_QCRYPTO_TLS_CREDS); | |
bf01c179 | 4082 | if (!vd->tlscreds) { |
3e305e4a DB |
4083 | error_setg(errp, "Object with id '%s' is not TLS credentials", |
4084 | credid); | |
4085 | goto fail; | |
4086 | } | |
bf01c179 | 4087 | object_ref(OBJECT(vd->tlscreds)); |
3e305e4a | 4088 | |
3c52bf0c PMD |
4089 | if (!qcrypto_tls_creds_check_endpoint(vd->tlscreds, |
4090 | QCRYPTO_TLS_CREDS_ENDPOINT_SERVER, | |
4091 | errp)) { | |
3e305e4a DB |
4092 | goto fail; |
4093 | } | |
4db14629 | 4094 | } |
55cf09a0 | 4095 | tlsauthz = qemu_opt_get(opts, "tls-authz"); |
55cf09a0 DB |
4096 | if (tlsauthz && !vd->tlscreds) { |
4097 | error_setg(errp, "'tls-authz' provided but TLS is not enabled"); | |
4098 | goto fail; | |
4099 | } | |
4100 | ||
4101 | saslauthz = qemu_opt_get(opts, "sasl-authz"); | |
55cf09a0 DB |
4102 | if (saslauthz && !sasl) { |
4103 | error_setg(errp, "'sasl-authz' provided but SASL auth is not enabled"); | |
4104 | goto fail; | |
4105 | } | |
4db14629 GH |
4106 | |
4107 | share = qemu_opt_get(opts, "share"); | |
4108 | if (share) { | |
4109 | if (strcmp(share, "ignore") == 0) { | |
bf01c179 | 4110 | vd->share_policy = VNC_SHARE_POLICY_IGNORE; |
4db14629 | 4111 | } else if (strcmp(share, "allow-exclusive") == 0) { |
bf01c179 | 4112 | vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE; |
4db14629 | 4113 | } else if (strcmp(share, "force-shared") == 0) { |
bf01c179 | 4114 | vd->share_policy = VNC_SHARE_POLICY_FORCE_SHARED; |
4db14629 GH |
4115 | } else { |
4116 | error_setg(errp, "unknown vnc share= option"); | |
4117 | goto fail; | |
4118 | } | |
4119 | } else { | |
bf01c179 | 4120 | vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE; |
4db14629 | 4121 | } |
bf01c179 | 4122 | vd->connections_limit = qemu_opt_get_number(opts, "connections", 32); |
4db14629 | 4123 | |
4db14629 | 4124 | #ifdef CONFIG_VNC_JPEG |
bf01c179 | 4125 | vd->lossy = qemu_opt_get_bool(opts, "lossy", false); |
4db14629 | 4126 | #endif |
bf01c179 | 4127 | vd->non_adaptive = qemu_opt_get_bool(opts, "non-adaptive", false); |
e22492d3 PL |
4128 | /* adaptive updates are only used with tight encoding and |
4129 | * if lossy updates are enabled so we can disable all the | |
4130 | * calculations otherwise */ | |
bf01c179 DB |
4131 | if (!vd->lossy) { |
4132 | vd->non_adaptive = true; | |
e22492d3 PL |
4133 | } |
4134 | ||
7b5fa0b5 DB |
4135 | vd->power_control = qemu_opt_get_bool(opts, "power-control", false); |
4136 | ||
55cf09a0 DB |
4137 | if (tlsauthz) { |
4138 | vd->tlsauthzid = g_strdup(tlsauthz); | |
2cc45228 | 4139 | } |
76655d6d | 4140 | #ifdef CONFIG_VNC_SASL |
55cf09a0 DB |
4141 | if (sasl) { |
4142 | if (saslauthz) { | |
4143 | vd->sasl.authzid = g_strdup(saslauthz); | |
c8496408 | 4144 | } |
76655d6d AL |
4145 | } |
4146 | #endif | |
4147 | ||
eda24e18 DB |
4148 | if (vnc_display_setup_auth(&vd->auth, &vd->subauth, |
4149 | vd->tlscreds, password, | |
4150 | sasl, false, errp) < 0) { | |
4151 | goto fail; | |
4152 | } | |
7364dbda | 4153 | trace_vnc_auth_init(vd, 0, vd->auth, vd->subauth); |
eda24e18 DB |
4154 | |
4155 | if (vnc_display_setup_auth(&vd->ws_auth, &vd->ws_subauth, | |
4156 | vd->tlscreds, password, | |
4157 | sasl, true, errp) < 0) { | |
3e305e4a DB |
4158 | goto fail; |
4159 | } | |
7364dbda | 4160 | trace_vnc_auth_init(vd, 1, vd->ws_auth, vd->ws_subauth); |
24236869 | 4161 | |
2f9606b3 | 4162 | #ifdef CONFIG_VNC_SASL |
b65310ab PB |
4163 | if (sasl && !vnc_sasl_server_init(errp)) { |
4164 | goto fail; | |
2f9606b3 AL |
4165 | } |
4166 | #endif | |
bf01c179 | 4167 | vd->lock_key_sync = lock_key_sync; |
a54f0d2b PO |
4168 | if (lock_key_sync) { |
4169 | vd->led = qemu_add_led_event_handler(kbd_leds, vd); | |
4170 | } | |
4171 | vd->ledstate = 0; | |
2f9606b3 | 4172 | |
f0b9f36d KZ |
4173 | audiodev = qemu_opt_get(opts, "audiodev"); |
4174 | if (audiodev) { | |
4175 | vd->audio_state = audio_state_by_name(audiodev); | |
4176 | if (!vd->audio_state) { | |
4177 | error_setg(errp, "Audiodev '%s' not found", audiodev); | |
4178 | goto fail; | |
4179 | } | |
4180 | } | |
4181 | ||
1d0d59fe GH |
4182 | device_id = qemu_opt_get(opts, "display"); |
4183 | if (device_id) { | |
1d0d59fe | 4184 | int head = qemu_opt_get_number(opts, "head", 0); |
f2c1d54c | 4185 | Error *err = NULL; |
1d0d59fe | 4186 | |
f2c1d54c GH |
4187 | con = qemu_console_lookup_by_device_name(device_id, head, &err); |
4188 | if (err) { | |
4189 | error_propagate(errp, err); | |
1d0d59fe GH |
4190 | goto fail; |
4191 | } | |
4192 | } else { | |
4193 | con = NULL; | |
4194 | } | |
4195 | ||
bf01c179 | 4196 | if (con != vd->dcl.con) { |
c2f2ba49 | 4197 | qkbd_state_free(vd->kbd); |
bf01c179 DB |
4198 | unregister_displaychangelistener(&vd->dcl); |
4199 | vd->dcl.con = con; | |
4200 | register_displaychangelistener(&vd->dcl); | |
c2f2ba49 | 4201 | vd->kbd = qkbd_state_init(vd->dcl.con); |
1d0d59fe | 4202 | } |
c2f2ba49 | 4203 | qkbd_state_set_delay(vd->kbd, key_delay_ms); |
1d0d59fe | 4204 | |
d708f99d VSO |
4205 | if (saddr_list == NULL) { |
4206 | return; | |
fa03cb7f MAL |
4207 | } |
4208 | ||
3aa3eea3 | 4209 | if (reverse) { |
d708f99d | 4210 | if (vnc_display_connect(vd, saddr_list, wsaddr_list, errp) < 0) { |
007fcd3e PB |
4211 | goto fail; |
4212 | } | |
9712ecaf | 4213 | } else { |
d708f99d | 4214 | if (vnc_display_listen(vd, saddr_list, wsaddr_list, errp) < 0) { |
e0d03b8c DB |
4215 | goto fail; |
4216 | } | |
24236869 | 4217 | } |
e0d03b8c | 4218 | |
275e0d61 | 4219 | if (qemu_opt_get(opts, "to")) { |
bf01c179 | 4220 | vnc_display_print_local_addr(vd); |
33df7bf3 PB |
4221 | } |
4222 | ||
d708f99d | 4223 | /* Success */ |
2d55f0e8 | 4224 | return; |
1ce52c78 PB |
4225 | |
4226 | fail: | |
4ee74fa7 | 4227 | vnc_display_close(vd); |
24236869 | 4228 | } |
13661089 | 4229 | |
14f7143e | 4230 | void vnc_display_add_client(const char *id, int csock, bool skipauth) |
13661089 | 4231 | { |
bf01c179 | 4232 | VncDisplay *vd = vnc_display_find(id); |
04d2529d | 4233 | QIOChannelSocket *sioc; |
13661089 | 4234 | |
bf01c179 | 4235 | if (!vd) { |
d616ccc5 GH |
4236 | return; |
4237 | } | |
04d2529d DB |
4238 | |
4239 | sioc = qio_channel_socket_new_fd(csock, NULL); | |
4240 | if (sioc) { | |
10bcfe58 | 4241 | qio_channel_set_name(QIO_CHANNEL(sioc), "vnc-server"); |
bf01c179 | 4242 | vnc_connect(vd, sioc, skipauth, false); |
04d2529d DB |
4243 | object_unref(OBJECT(sioc)); |
4244 | } | |
13661089 | 4245 | } |
4db14629 | 4246 | |
9634f4e3 | 4247 | static void vnc_auto_assign_id(QemuOptsList *olist, QemuOpts *opts) |
2779672f GA |
4248 | { |
4249 | int i = 2; | |
4250 | char *id; | |
4251 | ||
4252 | id = g_strdup("default"); | |
4253 | while (qemu_opts_find(olist, id)) { | |
4254 | g_free(id); | |
4255 | id = g_strdup_printf("vnc%d", i++); | |
4256 | } | |
4257 | qemu_opts_set_id(opts, id); | |
4258 | } | |
4259 | ||
653c9747 | 4260 | void vnc_parse(const char *str) |
4db14629 | 4261 | { |
4db14629 | 4262 | QemuOptsList *olist = qemu_find_opts("vnc"); |
653c9747 | 4263 | QemuOpts *opts = qemu_opts_parse_noisily(olist, str, !is_help_option(str)); |
81607cbf | 4264 | const char *id; |
4db14629 | 4265 | |
81607cbf | 4266 | if (!opts) { |
653c9747 | 4267 | exit(1); |
81607cbf GA |
4268 | } |
4269 | ||
4270 | id = qemu_opts_id(opts); | |
4db14629 GH |
4271 | if (!id) { |
4272 | /* auto-assign id if not present */ | |
2779672f | 4273 | vnc_auto_assign_id(olist, opts); |
4db14629 | 4274 | } |
9634f4e3 GH |
4275 | } |
4276 | ||
28d0de7a | 4277 | int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp) |
9634f4e3 GH |
4278 | { |
4279 | Error *local_err = NULL; | |
4280 | char *id = (char *)qemu_opts_id(opts); | |
4db14629 | 4281 | |
9634f4e3 | 4282 | assert(id); |
ab4f931e FL |
4283 | vnc_display_init(id, &local_err); |
4284 | if (local_err) { | |
612aea20 MA |
4285 | error_propagate(errp, local_err); |
4286 | return -1; | |
ab4f931e | 4287 | } |
4db14629 GH |
4288 | vnc_display_open(id, &local_err); |
4289 | if (local_err != NULL) { | |
612aea20 MA |
4290 | error_propagate(errp, local_err); |
4291 | return -1; | |
4db14629 GH |
4292 | } |
4293 | return 0; | |
4294 | } | |
4295 | ||
4296 | static void vnc_register_config(void) | |
4297 | { | |
4298 | qemu_add_opts(&qemu_vnc_opts); | |
4299 | } | |
34294e2f | 4300 | opts_init(vnc_register_config); |