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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 | ||
19a490bf | 27 | #include "vnc.h" |
87ecb68b | 28 | #include "sysemu.h" |
6ca957f0 | 29 | #include "qemu_socket.h" |
87ecb68b | 30 | #include "qemu-timer.h" |
76655d6d | 31 | #include "acl.h" |
24236869 | 32 | |
2430ffe4 SS |
33 | #define VNC_REFRESH_INTERVAL_BASE 30 |
34 | #define VNC_REFRESH_INTERVAL_INC 50 | |
35 | #define VNC_REFRESH_INTERVAL_MAX 2000 | |
24236869 FB |
36 | |
37 | #include "vnc_keysym.h" | |
70848515 TS |
38 | #include "d3des.h" |
39 | ||
90a1e3c0 AL |
40 | #define count_bits(c, v) { \ |
41 | for (c = 0; v; v >>= 1) \ | |
42 | { \ | |
43 | c += v & 1; \ | |
44 | } \ | |
45 | } | |
8d5d2d4c | 46 | |
24236869 | 47 | |
753b4053 | 48 | static VncDisplay *vnc_display; /* needed for info vnc */ |
7d957bd8 | 49 | static DisplayChangeListener *dcl; |
a9ce8590 | 50 | |
1ff7df1a AL |
51 | static char *addr_to_string(const char *format, |
52 | struct sockaddr_storage *sa, | |
53 | socklen_t salen) { | |
54 | char *addr; | |
55 | char host[NI_MAXHOST]; | |
56 | char serv[NI_MAXSERV]; | |
57 | int err; | |
457772e6 | 58 | size_t addrlen; |
1ff7df1a AL |
59 | |
60 | if ((err = getnameinfo((struct sockaddr *)sa, salen, | |
61 | host, sizeof(host), | |
62 | serv, sizeof(serv), | |
63 | NI_NUMERICHOST | NI_NUMERICSERV)) != 0) { | |
64 | VNC_DEBUG("Cannot resolve address %d: %s\n", | |
65 | err, gai_strerror(err)); | |
66 | return NULL; | |
67 | } | |
68 | ||
457772e6 | 69 | /* Enough for the existing format + the 2 vars we're |
f425c278 | 70 | * substituting in. */ |
457772e6 AL |
71 | addrlen = strlen(format) + strlen(host) + strlen(serv); |
72 | addr = qemu_malloc(addrlen + 1); | |
73 | snprintf(addr, addrlen, format, host, serv); | |
74 | addr[addrlen] = '\0'; | |
1ff7df1a AL |
75 | |
76 | return addr; | |
77 | } | |
78 | ||
2f9606b3 AL |
79 | |
80 | char *vnc_socket_local_addr(const char *format, int fd) { | |
1ff7df1a AL |
81 | struct sockaddr_storage sa; |
82 | socklen_t salen; | |
83 | ||
84 | salen = sizeof(sa); | |
85 | if (getsockname(fd, (struct sockaddr*)&sa, &salen) < 0) | |
86 | return NULL; | |
87 | ||
88 | return addr_to_string(format, &sa, salen); | |
89 | } | |
90 | ||
2f9606b3 | 91 | char *vnc_socket_remote_addr(const char *format, int fd) { |
1ff7df1a AL |
92 | struct sockaddr_storage sa; |
93 | socklen_t salen; | |
94 | ||
95 | salen = sizeof(sa); | |
96 | if (getpeername(fd, (struct sockaddr*)&sa, &salen) < 0) | |
97 | return NULL; | |
98 | ||
99 | return addr_to_string(format, &sa, salen); | |
100 | } | |
101 | ||
102 | static const char *vnc_auth_name(VncDisplay *vd) { | |
103 | switch (vd->auth) { | |
104 | case VNC_AUTH_INVALID: | |
105 | return "invalid"; | |
106 | case VNC_AUTH_NONE: | |
107 | return "none"; | |
108 | case VNC_AUTH_VNC: | |
109 | return "vnc"; | |
110 | case VNC_AUTH_RA2: | |
111 | return "ra2"; | |
112 | case VNC_AUTH_RA2NE: | |
113 | return "ra2ne"; | |
114 | case VNC_AUTH_TIGHT: | |
115 | return "tight"; | |
116 | case VNC_AUTH_ULTRA: | |
117 | return "ultra"; | |
118 | case VNC_AUTH_TLS: | |
119 | return "tls"; | |
120 | case VNC_AUTH_VENCRYPT: | |
121 | #ifdef CONFIG_VNC_TLS | |
122 | switch (vd->subauth) { | |
123 | case VNC_AUTH_VENCRYPT_PLAIN: | |
124 | return "vencrypt+plain"; | |
125 | case VNC_AUTH_VENCRYPT_TLSNONE: | |
126 | return "vencrypt+tls+none"; | |
127 | case VNC_AUTH_VENCRYPT_TLSVNC: | |
128 | return "vencrypt+tls+vnc"; | |
129 | case VNC_AUTH_VENCRYPT_TLSPLAIN: | |
130 | return "vencrypt+tls+plain"; | |
131 | case VNC_AUTH_VENCRYPT_X509NONE: | |
132 | return "vencrypt+x509+none"; | |
133 | case VNC_AUTH_VENCRYPT_X509VNC: | |
134 | return "vencrypt+x509+vnc"; | |
135 | case VNC_AUTH_VENCRYPT_X509PLAIN: | |
136 | return "vencrypt+x509+plain"; | |
28a76be8 AL |
137 | case VNC_AUTH_VENCRYPT_TLSSASL: |
138 | return "vencrypt+tls+sasl"; | |
139 | case VNC_AUTH_VENCRYPT_X509SASL: | |
140 | return "vencrypt+x509+sasl"; | |
1ff7df1a AL |
141 | default: |
142 | return "vencrypt"; | |
143 | } | |
144 | #else | |
145 | return "vencrypt"; | |
146 | #endif | |
2f9606b3 | 147 | case VNC_AUTH_SASL: |
28a76be8 | 148 | return "sasl"; |
1ff7df1a AL |
149 | } |
150 | return "unknown"; | |
151 | } | |
152 | ||
1ff7df1a AL |
153 | static void do_info_vnc_client(Monitor *mon, VncState *client) |
154 | { | |
155 | char *clientAddr = | |
156 | vnc_socket_remote_addr(" address: %s:%s\n", | |
157 | client->csock); | |
158 | if (!clientAddr) | |
159 | return; | |
160 | ||
161 | monitor_printf(mon, "Client:\n"); | |
162 | monitor_printf(mon, "%s", clientAddr); | |
163 | free(clientAddr); | |
1263b7d6 AL |
164 | |
165 | #ifdef CONFIG_VNC_TLS | |
166 | if (client->tls.session && | |
28a76be8 AL |
167 | client->tls.dname) |
168 | monitor_printf(mon, " x509 dname: %s\n", client->tls.dname); | |
1263b7d6 | 169 | else |
28a76be8 | 170 | monitor_printf(mon, " x509 dname: none\n"); |
1263b7d6 AL |
171 | #endif |
172 | #ifdef CONFIG_VNC_SASL | |
173 | if (client->sasl.conn && | |
28a76be8 AL |
174 | client->sasl.username) |
175 | monitor_printf(mon, " username: %s\n", client->sasl.username); | |
1263b7d6 | 176 | else |
28a76be8 | 177 | monitor_printf(mon, " username: none\n"); |
1263b7d6 | 178 | #endif |
1ff7df1a AL |
179 | } |
180 | ||
376253ec | 181 | void do_info_vnc(Monitor *mon) |
a9ce8590 | 182 | { |
1ff7df1a AL |
183 | if (vnc_display == NULL || vnc_display->display == NULL) { |
184 | monitor_printf(mon, "Server: disabled\n"); | |
185 | } else { | |
186 | char *serverAddr = vnc_socket_local_addr(" address: %s:%s\n", | |
187 | vnc_display->lsock); | |
188 | ||
189 | if (!serverAddr) | |
190 | return; | |
191 | ||
192 | monitor_printf(mon, "Server:\n"); | |
193 | monitor_printf(mon, "%s", serverAddr); | |
194 | free(serverAddr); | |
195 | monitor_printf(mon, " auth: %s\n", vnc_auth_name(vnc_display)); | |
196 | ||
197 | if (vnc_display->clients) { | |
198 | VncState *client = vnc_display->clients; | |
199 | while (client) { | |
200 | do_info_vnc_client(mon, client); | |
201 | client = client->next; | |
202 | } | |
203 | } else { | |
204 | monitor_printf(mon, "Client: none\n"); | |
205 | } | |
a9ce8590 FB |
206 | } |
207 | } | |
208 | ||
29fa4ed9 AL |
209 | static inline uint32_t vnc_has_feature(VncState *vs, int feature) { |
210 | return (vs->features & (1 << feature)); | |
211 | } | |
212 | ||
24236869 FB |
213 | /* TODO |
214 | 1) Get the queue working for IO. | |
215 | 2) there is some weirdness when using the -S option (the screen is grey | |
216 | and not totally invalidated | |
217 | 3) resolutions > 1024 | |
218 | */ | |
219 | ||
2430ffe4 | 220 | static int vnc_update_client(VncState *vs, int has_dirty); |
198a0039 GH |
221 | static void vnc_disconnect_start(VncState *vs); |
222 | static void vnc_disconnect_finish(VncState *vs); | |
703bc68f SS |
223 | static void vnc_init_timer(VncDisplay *vd); |
224 | static void vnc_remove_timer(VncDisplay *vd); | |
24236869 | 225 | |
753b4053 | 226 | static void vnc_colordepth(VncState *vs); |
1fc62412 SS |
227 | static void framebuffer_update_request(VncState *vs, int incremental, |
228 | int x_position, int y_position, | |
229 | int w, int h); | |
230 | static void vnc_refresh(void *opaque); | |
231 | static int vnc_refresh_server_surface(VncDisplay *vd); | |
7eac3a87 | 232 | |
99589bdc FB |
233 | static inline void vnc_set_bit(uint32_t *d, int k) |
234 | { | |
235 | d[k >> 5] |= 1 << (k & 0x1f); | |
236 | } | |
237 | ||
238 | static inline void vnc_clear_bit(uint32_t *d, int k) | |
239 | { | |
240 | d[k >> 5] &= ~(1 << (k & 0x1f)); | |
241 | } | |
242 | ||
243 | static inline void vnc_set_bits(uint32_t *d, int n, int nb_words) | |
244 | { | |
245 | int j; | |
246 | ||
247 | j = 0; | |
248 | while (n >= 32) { | |
249 | d[j++] = -1; | |
250 | n -= 32; | |
251 | } | |
5fafdf24 | 252 | if (n > 0) |
99589bdc FB |
253 | d[j++] = (1 << n) - 1; |
254 | while (j < nb_words) | |
255 | d[j++] = 0; | |
256 | } | |
257 | ||
258 | static inline int vnc_get_bit(const uint32_t *d, int k) | |
259 | { | |
260 | return (d[k >> 5] >> (k & 0x1f)) & 1; | |
261 | } | |
262 | ||
5fafdf24 | 263 | static inline int vnc_and_bits(const uint32_t *d1, const uint32_t *d2, |
99589bdc FB |
264 | int nb_words) |
265 | { | |
266 | int i; | |
267 | for(i = 0; i < nb_words; i++) { | |
268 | if ((d1[i] & d2[i]) != 0) | |
269 | return 1; | |
270 | } | |
271 | return 0; | |
272 | } | |
273 | ||
1fc62412 | 274 | static void vnc_dpy_update(DisplayState *ds, int x, int y, int w, int h) |
24236869 | 275 | { |
24236869 | 276 | int i; |
1fc62412 SS |
277 | VncDisplay *vd = ds->opaque; |
278 | struct VncSurface *s = &vd->guest; | |
24236869 FB |
279 | |
280 | h += y; | |
281 | ||
0486e8a7 AZ |
282 | /* round x down to ensure the loop only spans one 16-pixel block per, |
283 | iteration. otherwise, if (x % 16) != 0, the last iteration may span | |
284 | two 16-pixel blocks but we only mark the first as dirty | |
285 | */ | |
286 | w += (x % 16); | |
287 | x -= (x % 16); | |
288 | ||
6baebed7 AL |
289 | x = MIN(x, s->ds->width); |
290 | y = MIN(y, s->ds->height); | |
291 | w = MIN(x + w, s->ds->width) - x; | |
292 | h = MIN(h, s->ds->height); | |
788abf8e | 293 | |
24236869 | 294 | for (; y < h; y++) |
28a76be8 | 295 | for (i = 0; i < w; i += 16) |
6baebed7 | 296 | vnc_set_bit(s->dirty[y], (x + i) / 16); |
24236869 FB |
297 | } |
298 | ||
299 | static void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, | |
28a76be8 | 300 | int32_t encoding) |
24236869 FB |
301 | { |
302 | vnc_write_u16(vs, x); | |
303 | vnc_write_u16(vs, y); | |
304 | vnc_write_u16(vs, w); | |
305 | vnc_write_u16(vs, h); | |
306 | ||
307 | vnc_write_s32(vs, encoding); | |
308 | } | |
309 | ||
2f9606b3 | 310 | void buffer_reserve(Buffer *buffer, size_t len) |
89064286 AL |
311 | { |
312 | if ((buffer->capacity - buffer->offset) < len) { | |
28a76be8 AL |
313 | buffer->capacity += (len + 1024); |
314 | buffer->buffer = qemu_realloc(buffer->buffer, buffer->capacity); | |
315 | if (buffer->buffer == NULL) { | |
316 | fprintf(stderr, "vnc: out of memory\n"); | |
317 | exit(1); | |
318 | } | |
89064286 AL |
319 | } |
320 | } | |
321 | ||
2f9606b3 | 322 | int buffer_empty(Buffer *buffer) |
89064286 AL |
323 | { |
324 | return buffer->offset == 0; | |
325 | } | |
326 | ||
2f9606b3 | 327 | uint8_t *buffer_end(Buffer *buffer) |
89064286 AL |
328 | { |
329 | return buffer->buffer + buffer->offset; | |
330 | } | |
331 | ||
2f9606b3 | 332 | void buffer_reset(Buffer *buffer) |
89064286 | 333 | { |
28a76be8 | 334 | buffer->offset = 0; |
89064286 AL |
335 | } |
336 | ||
2f9606b3 | 337 | void buffer_append(Buffer *buffer, const void *data, size_t len) |
89064286 AL |
338 | { |
339 | memcpy(buffer->buffer + buffer->offset, data, len); | |
340 | buffer->offset += len; | |
341 | } | |
342 | ||
1fc62412 | 343 | static void vnc_dpy_resize(DisplayState *ds) |
24236869 | 344 | { |
73e14b62 | 345 | int size_changed; |
1fc62412 SS |
346 | VncDisplay *vd = ds->opaque; |
347 | VncState *vs = vd->clients; | |
348 | ||
349 | /* server surface */ | |
350 | if (!vd->server) | |
351 | vd->server = qemu_mallocz(sizeof(*vd->server)); | |
352 | if (vd->server->data) | |
353 | qemu_free(vd->server->data); | |
354 | *(vd->server) = *(ds->surface); | |
355 | vd->server->data = qemu_mallocz(vd->server->linesize * | |
356 | vd->server->height); | |
24236869 | 357 | |
6baebed7 | 358 | /* guest surface */ |
1fc62412 SS |
359 | if (!vd->guest.ds) |
360 | vd->guest.ds = qemu_mallocz(sizeof(*vd->guest.ds)); | |
361 | if (ds_get_bytes_per_pixel(ds) != vd->guest.ds->pf.bytes_per_pixel) | |
a528b80c | 362 | console_color_init(ds); |
1fc62412 SS |
363 | size_changed = ds_get_width(ds) != vd->guest.ds->width || |
364 | ds_get_height(ds) != vd->guest.ds->height; | |
365 | *(vd->guest.ds) = *(ds->surface); | |
366 | memset(vd->guest.dirty, 0xFF, sizeof(vd->guest.dirty)); | |
24236869 | 367 | |
753b4053 | 368 | while (vs != NULL) { |
1fc62412 SS |
369 | vnc_colordepth(vs); |
370 | if (size_changed) { | |
371 | if (vs->csock != -1 && vnc_has_feature(vs, VNC_FEATURE_RESIZE)) { | |
372 | vnc_write_u8(vs, 0); /* msg id */ | |
373 | vnc_write_u8(vs, 0); | |
374 | vnc_write_u16(vs, 1); /* number of rects */ | |
375 | vnc_framebuffer_update(vs, 0, 0, ds_get_width(ds), ds_get_height(ds), | |
376 | VNC_ENCODING_DESKTOPRESIZE); | |
377 | vnc_flush(vs); | |
378 | } | |
379 | } | |
380 | memset(vs->dirty, 0xFF, sizeof(vs->dirty)); | |
753b4053 AL |
381 | vs = vs->next; |
382 | } | |
383 | } | |
384 | ||
3512779a FB |
385 | /* fastest code */ |
386 | static void vnc_write_pixels_copy(VncState *vs, void *pixels, int size) | |
387 | { | |
388 | vnc_write(vs, pixels, size); | |
389 | } | |
390 | ||
391 | /* slowest but generic code. */ | |
392 | static void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v) | |
393 | { | |
7eac3a87 | 394 | uint8_t r, g, b; |
1fc62412 SS |
395 | VncDisplay *vd = vs->vd; |
396 | ||
397 | r = ((((v & vd->server->pf.rmask) >> vd->server->pf.rshift) << vs->clientds.pf.rbits) >> | |
398 | vd->server->pf.rbits); | |
399 | g = ((((v & vd->server->pf.gmask) >> vd->server->pf.gshift) << vs->clientds.pf.gbits) >> | |
400 | vd->server->pf.gbits); | |
401 | b = ((((v & vd->server->pf.bmask) >> vd->server->pf.bshift) << vs->clientds.pf.bbits) >> | |
402 | vd->server->pf.bbits); | |
6cec5487 AL |
403 | v = (r << vs->clientds.pf.rshift) | |
404 | (g << vs->clientds.pf.gshift) | | |
405 | (b << vs->clientds.pf.bshift); | |
406 | switch(vs->clientds.pf.bytes_per_pixel) { | |
3512779a FB |
407 | case 1: |
408 | buf[0] = v; | |
409 | break; | |
410 | case 2: | |
6cec5487 | 411 | if (vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) { |
3512779a FB |
412 | buf[0] = v >> 8; |
413 | buf[1] = v; | |
414 | } else { | |
415 | buf[1] = v >> 8; | |
416 | buf[0] = v; | |
417 | } | |
418 | break; | |
419 | default: | |
420 | case 4: | |
6cec5487 | 421 | if (vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) { |
3512779a FB |
422 | buf[0] = v >> 24; |
423 | buf[1] = v >> 16; | |
424 | buf[2] = v >> 8; | |
425 | buf[3] = v; | |
426 | } else { | |
427 | buf[3] = v >> 24; | |
428 | buf[2] = v >> 16; | |
429 | buf[1] = v >> 8; | |
430 | buf[0] = v; | |
431 | } | |
432 | break; | |
433 | } | |
434 | } | |
435 | ||
436 | static void vnc_write_pixels_generic(VncState *vs, void *pixels1, int size) | |
437 | { | |
3512779a | 438 | uint8_t buf[4]; |
1fc62412 | 439 | VncDisplay *vd = vs->vd; |
3512779a | 440 | |
1fc62412 | 441 | if (vd->server->pf.bytes_per_pixel == 4) { |
7eac3a87 AL |
442 | uint32_t *pixels = pixels1; |
443 | int n, i; | |
444 | n = size >> 2; | |
445 | for(i = 0; i < n; i++) { | |
446 | vnc_convert_pixel(vs, buf, pixels[i]); | |
6cec5487 | 447 | vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel); |
7eac3a87 | 448 | } |
1fc62412 | 449 | } else if (vd->server->pf.bytes_per_pixel == 2) { |
7eac3a87 AL |
450 | uint16_t *pixels = pixels1; |
451 | int n, i; | |
452 | n = size >> 1; | |
453 | for(i = 0; i < n; i++) { | |
454 | vnc_convert_pixel(vs, buf, pixels[i]); | |
6cec5487 | 455 | vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel); |
7eac3a87 | 456 | } |
1fc62412 | 457 | } else if (vd->server->pf.bytes_per_pixel == 1) { |
7eac3a87 AL |
458 | uint8_t *pixels = pixels1; |
459 | int n, i; | |
460 | n = size; | |
461 | for(i = 0; i < n; i++) { | |
462 | vnc_convert_pixel(vs, buf, pixels[i]); | |
6cec5487 | 463 | vnc_write(vs, buf, vs->clientds.pf.bytes_per_pixel); |
7eac3a87 AL |
464 | } |
465 | } else { | |
466 | fprintf(stderr, "vnc_write_pixels_generic: VncState color depth not supported\n"); | |
3512779a FB |
467 | } |
468 | } | |
469 | ||
24236869 FB |
470 | static void send_framebuffer_update_raw(VncState *vs, int x, int y, int w, int h) |
471 | { | |
472 | int i; | |
60fe76f3 | 473 | uint8_t *row; |
1fc62412 | 474 | VncDisplay *vd = vs->vd; |
24236869 | 475 | |
1fc62412 | 476 | row = vd->server->data + y * ds_get_linesize(vs->ds) + x * ds_get_bytes_per_pixel(vs->ds); |
24236869 | 477 | for (i = 0; i < h; i++) { |
28a76be8 AL |
478 | vs->write_pixels(vs, row, w * ds_get_bytes_per_pixel(vs->ds)); |
479 | row += ds_get_linesize(vs->ds); | |
24236869 FB |
480 | } |
481 | } | |
482 | ||
483 | static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h) | |
484 | { | |
485 | ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F); | |
486 | ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F); | |
487 | } | |
488 | ||
489 | #define BPP 8 | |
490 | #include "vnchextile.h" | |
491 | #undef BPP | |
492 | ||
493 | #define BPP 16 | |
494 | #include "vnchextile.h" | |
495 | #undef BPP | |
496 | ||
497 | #define BPP 32 | |
498 | #include "vnchextile.h" | |
499 | #undef BPP | |
500 | ||
7eac3a87 AL |
501 | #define GENERIC |
502 | #define BPP 8 | |
503 | #include "vnchextile.h" | |
504 | #undef BPP | |
505 | #undef GENERIC | |
506 | ||
507 | #define GENERIC | |
508 | #define BPP 16 | |
509 | #include "vnchextile.h" | |
510 | #undef BPP | |
511 | #undef GENERIC | |
512 | ||
3512779a FB |
513 | #define GENERIC |
514 | #define BPP 32 | |
515 | #include "vnchextile.h" | |
516 | #undef BPP | |
517 | #undef GENERIC | |
518 | ||
24236869 FB |
519 | static void send_framebuffer_update_hextile(VncState *vs, int x, int y, int w, int h) |
520 | { | |
521 | int i, j; | |
522 | int has_fg, has_bg; | |
7eac3a87 | 523 | uint8_t *last_fg, *last_bg; |
1fc62412 | 524 | VncDisplay *vd = vs->vd; |
24236869 | 525 | |
1fc62412 SS |
526 | last_fg = (uint8_t *) qemu_malloc(vd->server->pf.bytes_per_pixel); |
527 | last_bg = (uint8_t *) qemu_malloc(vd->server->pf.bytes_per_pixel); | |
24236869 FB |
528 | has_fg = has_bg = 0; |
529 | for (j = y; j < (y + h); j += 16) { | |
28a76be8 | 530 | for (i = x; i < (x + w); i += 16) { |
5fafdf24 | 531 | vs->send_hextile_tile(vs, i, j, |
3512779a | 532 | MIN(16, x + w - i), MIN(16, y + h - j), |
7eac3a87 | 533 | last_bg, last_fg, &has_bg, &has_fg); |
28a76be8 | 534 | } |
24236869 | 535 | } |
7eac3a87 AL |
536 | free(last_fg); |
537 | free(last_bg); | |
538 | ||
24236869 FB |
539 | } |
540 | ||
059cef40 AL |
541 | static void vnc_zlib_init(VncState *vs) |
542 | { | |
543 | int i; | |
544 | for (i=0; i<(sizeof(vs->zlib_stream) / sizeof(z_stream)); i++) | |
545 | vs->zlib_stream[i].opaque = NULL; | |
546 | } | |
547 | ||
548 | static void vnc_zlib_start(VncState *vs) | |
549 | { | |
550 | buffer_reset(&vs->zlib); | |
551 | ||
552 | // make the output buffer be the zlib buffer, so we can compress it later | |
553 | vs->zlib_tmp = vs->output; | |
554 | vs->output = vs->zlib; | |
555 | } | |
556 | ||
557 | static int vnc_zlib_stop(VncState *vs, int stream_id) | |
558 | { | |
559 | z_streamp zstream = &vs->zlib_stream[stream_id]; | |
560 | int previous_out; | |
561 | ||
562 | // switch back to normal output/zlib buffers | |
563 | vs->zlib = vs->output; | |
564 | vs->output = vs->zlib_tmp; | |
565 | ||
566 | // compress the zlib buffer | |
567 | ||
568 | // initialize the stream | |
569 | // XXX need one stream per session | |
570 | if (zstream->opaque != vs) { | |
571 | int err; | |
572 | ||
573 | VNC_DEBUG("VNC: initializing zlib stream %d\n", stream_id); | |
574 | VNC_DEBUG("VNC: opaque = %p | vs = %p\n", zstream->opaque, vs); | |
575 | zstream->zalloc = Z_NULL; | |
576 | zstream->zfree = Z_NULL; | |
577 | ||
578 | err = deflateInit2(zstream, vs->tight_compression, Z_DEFLATED, MAX_WBITS, | |
579 | MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY); | |
580 | ||
581 | if (err != Z_OK) { | |
582 | fprintf(stderr, "VNC: error initializing zlib\n"); | |
583 | return -1; | |
584 | } | |
585 | ||
586 | zstream->opaque = vs; | |
587 | } | |
588 | ||
589 | // XXX what to do if tight_compression changed in between? | |
590 | ||
591 | // reserve memory in output buffer | |
592 | buffer_reserve(&vs->output, vs->zlib.offset + 64); | |
593 | ||
594 | // set pointers | |
595 | zstream->next_in = vs->zlib.buffer; | |
596 | zstream->avail_in = vs->zlib.offset; | |
597 | zstream->next_out = vs->output.buffer + vs->output.offset; | |
598 | zstream->avail_out = vs->output.capacity - vs->output.offset; | |
599 | zstream->data_type = Z_BINARY; | |
600 | previous_out = zstream->total_out; | |
601 | ||
602 | // start encoding | |
603 | if (deflate(zstream, Z_SYNC_FLUSH) != Z_OK) { | |
604 | fprintf(stderr, "VNC: error during zlib compression\n"); | |
605 | return -1; | |
606 | } | |
607 | ||
608 | vs->output.offset = vs->output.capacity - zstream->avail_out; | |
609 | return zstream->total_out - previous_out; | |
610 | } | |
611 | ||
612 | static void send_framebuffer_update_zlib(VncState *vs, int x, int y, int w, int h) | |
613 | { | |
614 | int old_offset, new_offset, bytes_written; | |
615 | ||
616 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_ZLIB); | |
617 | ||
618 | // remember where we put in the follow-up size | |
619 | old_offset = vs->output.offset; | |
620 | vnc_write_s32(vs, 0); | |
621 | ||
622 | // compress the stream | |
623 | vnc_zlib_start(vs); | |
624 | send_framebuffer_update_raw(vs, x, y, w, h); | |
625 | bytes_written = vnc_zlib_stop(vs, 0); | |
626 | ||
627 | if (bytes_written == -1) | |
628 | return; | |
629 | ||
630 | // hack in the size | |
631 | new_offset = vs->output.offset; | |
632 | vs->output.offset = old_offset; | |
633 | vnc_write_u32(vs, bytes_written); | |
634 | vs->output.offset = new_offset; | |
635 | } | |
636 | ||
24236869 FB |
637 | static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h) |
638 | { | |
fb437313 | 639 | switch(vs->vnc_encoding) { |
28a76be8 AL |
640 | case VNC_ENCODING_ZLIB: |
641 | send_framebuffer_update_zlib(vs, x, y, w, h); | |
642 | break; | |
643 | case VNC_ENCODING_HEXTILE: | |
644 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_HEXTILE); | |
645 | send_framebuffer_update_hextile(vs, x, y, w, h); | |
646 | break; | |
647 | default: | |
648 | vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW); | |
649 | send_framebuffer_update_raw(vs, x, y, w, h); | |
650 | break; | |
fb437313 | 651 | } |
24236869 FB |
652 | } |
653 | ||
753b4053 | 654 | static void vnc_copy(VncState *vs, int src_x, int src_y, int dst_x, int dst_y, int w, int h) |
24236869 | 655 | { |
3e28c9ad | 656 | /* send bitblit op to the vnc client */ |
24236869 FB |
657 | vnc_write_u8(vs, 0); /* msg id */ |
658 | vnc_write_u8(vs, 0); | |
659 | vnc_write_u16(vs, 1); /* number of rects */ | |
29fa4ed9 | 660 | vnc_framebuffer_update(vs, dst_x, dst_y, w, h, VNC_ENCODING_COPYRECT); |
24236869 FB |
661 | vnc_write_u16(vs, src_x); |
662 | vnc_write_u16(vs, src_y); | |
663 | vnc_flush(vs); | |
664 | } | |
665 | ||
753b4053 AL |
666 | static void vnc_dpy_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h) |
667 | { | |
668 | VncDisplay *vd = ds->opaque; | |
198a0039 | 669 | VncState *vs, *vn; |
1fc62412 SS |
670 | uint8_t *src_row; |
671 | uint8_t *dst_row; | |
672 | int i,x,y,pitch,depth,inc,w_lim,s; | |
673 | int cmp_bytes; | |
198a0039 | 674 | |
1fc62412 | 675 | vnc_refresh_server_surface(vd); |
198a0039 GH |
676 | for (vs = vd->clients; vs != NULL; vs = vn) { |
677 | vn = vs->next; | |
678 | if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) { | |
679 | vs->force_update = 1; | |
1fc62412 | 680 | vnc_update_client(vs, 1); |
198a0039 GH |
681 | /* vs might be free()ed here */ |
682 | } | |
683 | } | |
684 | ||
1fc62412 SS |
685 | /* do bitblit op on the local surface too */ |
686 | pitch = ds_get_linesize(vd->ds); | |
687 | depth = ds_get_bytes_per_pixel(vd->ds); | |
688 | src_row = vd->server->data + pitch * src_y + depth * src_x; | |
689 | dst_row = vd->server->data + pitch * dst_y + depth * dst_x; | |
690 | y = dst_y; | |
691 | inc = 1; | |
692 | if (dst_y > src_y) { | |
693 | /* copy backwards */ | |
694 | src_row += pitch * (h-1); | |
695 | dst_row += pitch * (h-1); | |
696 | pitch = -pitch; | |
697 | y = dst_y + h - 1; | |
698 | inc = -1; | |
699 | } | |
700 | w_lim = w - (16 - (dst_x % 16)); | |
701 | if (w_lim < 0) | |
702 | w_lim = w; | |
703 | else | |
704 | w_lim = w - (w_lim % 16); | |
705 | for (i = 0; i < h; i++) { | |
706 | for (x = 0; x <= w_lim; | |
707 | x += s, src_row += cmp_bytes, dst_row += cmp_bytes) { | |
708 | if (x == w_lim) { | |
709 | if ((s = w - w_lim) == 0) | |
710 | break; | |
711 | } else if (!x) { | |
712 | s = (16 - (dst_x % 16)); | |
713 | s = MIN(s, w_lim); | |
714 | } else { | |
715 | s = 16; | |
716 | } | |
717 | cmp_bytes = s * depth; | |
718 | if (memcmp(src_row, dst_row, cmp_bytes) == 0) | |
719 | continue; | |
720 | memmove(dst_row, src_row, cmp_bytes); | |
721 | vs = vd->clients; | |
722 | while (vs != NULL) { | |
723 | if (!vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) | |
724 | vnc_set_bit(vs->dirty[y], ((x + dst_x) / 16)); | |
725 | vs = vs->next; | |
726 | } | |
727 | } | |
728 | src_row += pitch - w * depth; | |
729 | dst_row += pitch - w * depth; | |
730 | y += inc; | |
731 | } | |
732 | ||
198a0039 | 733 | for (vs = vd->clients; vs != NULL; vs = vs->next) { |
753b4053 AL |
734 | if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) |
735 | vnc_copy(vs, src_x, src_y, dst_x, dst_y, w, h); | |
753b4053 AL |
736 | } |
737 | } | |
738 | ||
1fc62412 | 739 | static int find_and_clear_dirty_height(struct VncState *vs, |
6baebed7 | 740 | int y, int last_x, int x) |
24236869 FB |
741 | { |
742 | int h; | |
1fc62412 | 743 | VncDisplay *vd = vs->vd; |
24236869 | 744 | |
1fc62412 | 745 | for (h = 1; h < (vd->server->height - y); h++) { |
28a76be8 | 746 | int tmp_x; |
1fc62412 | 747 | if (!vnc_get_bit(vs->dirty[y + h], last_x)) |
28a76be8 AL |
748 | break; |
749 | for (tmp_x = last_x; tmp_x < x; tmp_x++) | |
1fc62412 | 750 | vnc_clear_bit(vs->dirty[y + h], tmp_x); |
24236869 FB |
751 | } |
752 | ||
753 | return h; | |
754 | } | |
755 | ||
2430ffe4 | 756 | static int vnc_update_client(VncState *vs, int has_dirty) |
24236869 | 757 | { |
24236869 | 758 | if (vs->need_update && vs->csock != -1) { |
1fc62412 | 759 | VncDisplay *vd = vs->vd; |
28a76be8 | 760 | int y; |
28a76be8 AL |
761 | int n_rectangles; |
762 | int saved_offset; | |
24236869 | 763 | |
703bc68f | 764 | if (vs->output.offset && !vs->audio_cap && !vs->force_update) |
c522d0e2 | 765 | /* kernel send buffers are full -> drop frames to throttle */ |
2430ffe4 | 766 | return 0; |
a0ecfb73 | 767 | |
703bc68f | 768 | if (!has_dirty && !vs->audio_cap && !vs->force_update) |
2430ffe4 | 769 | return 0; |
28a76be8 | 770 | |
6baebed7 AL |
771 | /* |
772 | * Send screen updates to the vnc client using the server | |
773 | * surface and server dirty map. guest surface updates | |
774 | * happening in parallel don't disturb us, the next pass will | |
775 | * send them to the client. | |
776 | */ | |
28a76be8 AL |
777 | n_rectangles = 0; |
778 | vnc_write_u8(vs, 0); /* msg id */ | |
779 | vnc_write_u8(vs, 0); | |
780 | saved_offset = vs->output.offset; | |
781 | vnc_write_u16(vs, 0); | |
782 | ||
1fc62412 | 783 | for (y = 0; y < vd->server->height; y++) { |
28a76be8 AL |
784 | int x; |
785 | int last_x = -1; | |
1fc62412 SS |
786 | for (x = 0; x < vd->server->width / 16; x++) { |
787 | if (vnc_get_bit(vs->dirty[y], x)) { | |
28a76be8 AL |
788 | if (last_x == -1) { |
789 | last_x = x; | |
790 | } | |
1fc62412 | 791 | vnc_clear_bit(vs->dirty[y], x); |
28a76be8 AL |
792 | } else { |
793 | if (last_x != -1) { | |
1fc62412 | 794 | int h = find_and_clear_dirty_height(vs, y, last_x, x); |
28a76be8 AL |
795 | send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h); |
796 | n_rectangles++; | |
797 | } | |
798 | last_x = -1; | |
799 | } | |
800 | } | |
801 | if (last_x != -1) { | |
1fc62412 | 802 | int h = find_and_clear_dirty_height(vs, y, last_x, x); |
28a76be8 AL |
803 | send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h); |
804 | n_rectangles++; | |
805 | } | |
806 | } | |
807 | vs->output.buffer[saved_offset] = (n_rectangles >> 8) & 0xFF; | |
808 | vs->output.buffer[saved_offset + 1] = n_rectangles & 0xFF; | |
809 | vnc_flush(vs); | |
c522d0e2 | 810 | vs->force_update = 0; |
2430ffe4 | 811 | return n_rectangles; |
24236869 | 812 | } |
24236869 | 813 | |
703bc68f | 814 | if (vs->csock == -1) |
198a0039 | 815 | vnc_disconnect_finish(vs); |
2430ffe4 SS |
816 | |
817 | return 0; | |
24236869 FB |
818 | } |
819 | ||
429a8ed3 | 820 | /* audio */ |
821 | static void audio_capture_notify(void *opaque, audcnotification_e cmd) | |
822 | { | |
823 | VncState *vs = opaque; | |
824 | ||
825 | switch (cmd) { | |
826 | case AUD_CNOTIFY_DISABLE: | |
827 | vnc_write_u8(vs, 255); | |
828 | vnc_write_u8(vs, 1); | |
829 | vnc_write_u16(vs, 0); | |
830 | vnc_flush(vs); | |
831 | break; | |
832 | ||
833 | case AUD_CNOTIFY_ENABLE: | |
834 | vnc_write_u8(vs, 255); | |
835 | vnc_write_u8(vs, 1); | |
836 | vnc_write_u16(vs, 1); | |
837 | vnc_flush(vs); | |
838 | break; | |
839 | } | |
840 | } | |
841 | ||
842 | static void audio_capture_destroy(void *opaque) | |
843 | { | |
844 | } | |
845 | ||
846 | static void audio_capture(void *opaque, void *buf, int size) | |
847 | { | |
848 | VncState *vs = opaque; | |
849 | ||
850 | vnc_write_u8(vs, 255); | |
851 | vnc_write_u8(vs, 1); | |
852 | vnc_write_u16(vs, 2); | |
853 | vnc_write_u32(vs, size); | |
854 | vnc_write(vs, buf, size); | |
855 | vnc_flush(vs); | |
856 | } | |
857 | ||
858 | static void audio_add(VncState *vs) | |
859 | { | |
376253ec | 860 | Monitor *mon = cur_mon; |
429a8ed3 | 861 | struct audio_capture_ops ops; |
862 | ||
863 | if (vs->audio_cap) { | |
376253ec | 864 | monitor_printf(mon, "audio already running\n"); |
429a8ed3 | 865 | return; |
866 | } | |
867 | ||
868 | ops.notify = audio_capture_notify; | |
869 | ops.destroy = audio_capture_destroy; | |
870 | ops.capture = audio_capture; | |
871 | ||
1a7dafce | 872 | vs->audio_cap = AUD_add_capture(&vs->as, &ops, vs); |
429a8ed3 | 873 | if (!vs->audio_cap) { |
376253ec | 874 | monitor_printf(mon, "Failed to add audio capture\n"); |
429a8ed3 | 875 | } |
876 | } | |
877 | ||
878 | static void audio_del(VncState *vs) | |
879 | { | |
880 | if (vs->audio_cap) { | |
881 | AUD_del_capture(vs->audio_cap, vs); | |
882 | vs->audio_cap = NULL; | |
883 | } | |
884 | } | |
885 | ||
198a0039 GH |
886 | static void vnc_disconnect_start(VncState *vs) |
887 | { | |
888 | if (vs->csock == -1) | |
889 | return; | |
890 | qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL); | |
891 | closesocket(vs->csock); | |
892 | vs->csock = -1; | |
893 | } | |
894 | ||
895 | static void vnc_disconnect_finish(VncState *vs) | |
896 | { | |
fa0cfdf2 SW |
897 | if (vs->input.buffer) { |
898 | qemu_free(vs->input.buffer); | |
899 | vs->input.buffer = NULL; | |
900 | } | |
901 | if (vs->output.buffer) { | |
902 | qemu_free(vs->output.buffer); | |
903 | vs->output.buffer = NULL; | |
904 | } | |
198a0039 GH |
905 | #ifdef CONFIG_VNC_TLS |
906 | vnc_tls_client_cleanup(vs); | |
907 | #endif /* CONFIG_VNC_TLS */ | |
908 | #ifdef CONFIG_VNC_SASL | |
909 | vnc_sasl_client_cleanup(vs); | |
910 | #endif /* CONFIG_VNC_SASL */ | |
911 | audio_del(vs); | |
912 | ||
913 | VncState *p, *parent = NULL; | |
914 | for (p = vs->vd->clients; p != NULL; p = p->next) { | |
915 | if (p == vs) { | |
916 | if (parent) | |
917 | parent->next = p->next; | |
918 | else | |
919 | vs->vd->clients = p->next; | |
920 | break; | |
921 | } | |
922 | parent = p; | |
923 | } | |
924 | if (!vs->vd->clients) | |
925 | dcl->idle = 1; | |
926 | ||
703bc68f | 927 | vnc_remove_timer(vs->vd); |
5d95ac5b | 928 | qemu_free(vs); |
198a0039 | 929 | } |
2f9606b3 AL |
930 | |
931 | int vnc_client_io_error(VncState *vs, int ret, int last_errno) | |
24236869 FB |
932 | { |
933 | if (ret == 0 || ret == -1) { | |
ea01e5fd AZ |
934 | if (ret == -1) { |
935 | switch (last_errno) { | |
936 | case EINTR: | |
937 | case EAGAIN: | |
938 | #ifdef _WIN32 | |
939 | case WSAEWOULDBLOCK: | |
940 | #endif | |
941 | return 0; | |
942 | default: | |
943 | break; | |
944 | } | |
945 | } | |
24236869 | 946 | |
198a0039 GH |
947 | VNC_DEBUG("Closing down client sock: ret %d, errno %d\n", |
948 | ret, ret < 0 ? last_errno : 0); | |
949 | vnc_disconnect_start(vs); | |
6baebed7 | 950 | |
28a76be8 | 951 | return 0; |
24236869 FB |
952 | } |
953 | return ret; | |
954 | } | |
955 | ||
5fb6c7a8 AL |
956 | |
957 | void vnc_client_error(VncState *vs) | |
24236869 | 958 | { |
198a0039 GH |
959 | VNC_DEBUG("Closing down client sock: protocol error\n"); |
960 | vnc_disconnect_start(vs); | |
24236869 FB |
961 | } |
962 | ||
2f9606b3 AL |
963 | |
964 | /* | |
965 | * Called to write a chunk of data to the client socket. The data may | |
966 | * be the raw data, or may have already been encoded by SASL. | |
967 | * The data will be written either straight onto the socket, or | |
968 | * written via the GNUTLS wrappers, if TLS/SSL encryption is enabled | |
969 | * | |
970 | * NB, it is theoretically possible to have 2 layers of encryption, | |
971 | * both SASL, and this TLS layer. It is highly unlikely in practice | |
972 | * though, since SASL encryption will typically be a no-op if TLS | |
973 | * is active | |
974 | * | |
975 | * Returns the number of bytes written, which may be less than | |
976 | * the requested 'datalen' if the socket would block. Returns | |
977 | * -1 on error, and disconnects the client socket. | |
978 | */ | |
979 | long vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen) | |
24236869 | 980 | { |
ceb5caaf | 981 | long ret; |
eb38c52c | 982 | #ifdef CONFIG_VNC_TLS |
5fb6c7a8 | 983 | if (vs->tls.session) { |
28a76be8 AL |
984 | ret = gnutls_write(vs->tls.session, data, datalen); |
985 | if (ret < 0) { | |
986 | if (ret == GNUTLS_E_AGAIN) | |
987 | errno = EAGAIN; | |
988 | else | |
989 | errno = EIO; | |
990 | ret = -1; | |
991 | } | |
8d5d2d4c TS |
992 | } else |
993 | #endif /* CONFIG_VNC_TLS */ | |
70503264 | 994 | ret = send(vs->csock, (const void *)data, datalen, 0); |
23decc87 | 995 | VNC_DEBUG("Wrote wire %p %zd -> %ld\n", data, datalen, ret); |
2f9606b3 AL |
996 | return vnc_client_io_error(vs, ret, socket_error()); |
997 | } | |
998 | ||
999 | ||
1000 | /* | |
1001 | * Called to write buffered data to the client socket, when not | |
1002 | * using any SASL SSF encryption layers. Will write as much data | |
1003 | * as possible without blocking. If all buffered data is written, | |
1004 | * will switch the FD poll() handler back to read monitoring. | |
1005 | * | |
1006 | * Returns the number of bytes written, which may be less than | |
1007 | * the buffered output data if the socket would block. Returns | |
1008 | * -1 on error, and disconnects the client socket. | |
1009 | */ | |
1010 | static long vnc_client_write_plain(VncState *vs) | |
1011 | { | |
1012 | long ret; | |
1013 | ||
1014 | #ifdef CONFIG_VNC_SASL | |
23decc87 | 1015 | VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n", |
2f9606b3 AL |
1016 | vs->output.buffer, vs->output.capacity, vs->output.offset, |
1017 | vs->sasl.waitWriteSSF); | |
1018 | ||
1019 | if (vs->sasl.conn && | |
1020 | vs->sasl.runSSF && | |
1021 | vs->sasl.waitWriteSSF) { | |
1022 | ret = vnc_client_write_buf(vs, vs->output.buffer, vs->sasl.waitWriteSSF); | |
1023 | if (ret) | |
1024 | vs->sasl.waitWriteSSF -= ret; | |
1025 | } else | |
1026 | #endif /* CONFIG_VNC_SASL */ | |
1027 | ret = vnc_client_write_buf(vs, vs->output.buffer, vs->output.offset); | |
24236869 | 1028 | if (!ret) |
2f9606b3 | 1029 | return 0; |
24236869 FB |
1030 | |
1031 | memmove(vs->output.buffer, vs->output.buffer + ret, (vs->output.offset - ret)); | |
1032 | vs->output.offset -= ret; | |
1033 | ||
1034 | if (vs->output.offset == 0) { | |
28a76be8 | 1035 | qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs); |
24236869 | 1036 | } |
2f9606b3 AL |
1037 | |
1038 | return ret; | |
1039 | } | |
1040 | ||
1041 | ||
1042 | /* | |
1043 | * First function called whenever there is data to be written to | |
1044 | * the client socket. Will delegate actual work according to whether | |
1045 | * SASL SSF layers are enabled (thus requiring encryption calls) | |
1046 | */ | |
1047 | void vnc_client_write(void *opaque) | |
1048 | { | |
1049 | long ret; | |
1050 | VncState *vs = opaque; | |
1051 | ||
1052 | #ifdef CONFIG_VNC_SASL | |
1053 | if (vs->sasl.conn && | |
1054 | vs->sasl.runSSF && | |
1055 | !vs->sasl.waitWriteSSF) | |
1056 | ret = vnc_client_write_sasl(vs); | |
1057 | else | |
1058 | #endif /* CONFIG_VNC_SASL */ | |
1059 | ret = vnc_client_write_plain(vs); | |
24236869 FB |
1060 | } |
1061 | ||
5fb6c7a8 | 1062 | void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting) |
24236869 FB |
1063 | { |
1064 | vs->read_handler = func; | |
1065 | vs->read_handler_expect = expecting; | |
1066 | } | |
1067 | ||
2f9606b3 AL |
1068 | |
1069 | /* | |
1070 | * Called to read a chunk of data from the client socket. The data may | |
1071 | * be the raw data, or may need to be further decoded by SASL. | |
1072 | * The data will be read either straight from to the socket, or | |
1073 | * read via the GNUTLS wrappers, if TLS/SSL encryption is enabled | |
1074 | * | |
1075 | * NB, it is theoretically possible to have 2 layers of encryption, | |
1076 | * both SASL, and this TLS layer. It is highly unlikely in practice | |
1077 | * though, since SASL encryption will typically be a no-op if TLS | |
1078 | * is active | |
1079 | * | |
1080 | * Returns the number of bytes read, which may be less than | |
1081 | * the requested 'datalen' if the socket would block. Returns | |
1082 | * -1 on error, and disconnects the client socket. | |
1083 | */ | |
1084 | long vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen) | |
24236869 | 1085 | { |
ceb5caaf | 1086 | long ret; |
eb38c52c | 1087 | #ifdef CONFIG_VNC_TLS |
5fb6c7a8 | 1088 | if (vs->tls.session) { |
28a76be8 AL |
1089 | ret = gnutls_read(vs->tls.session, data, datalen); |
1090 | if (ret < 0) { | |
1091 | if (ret == GNUTLS_E_AGAIN) | |
1092 | errno = EAGAIN; | |
1093 | else | |
1094 | errno = EIO; | |
1095 | ret = -1; | |
1096 | } | |
8d5d2d4c TS |
1097 | } else |
1098 | #endif /* CONFIG_VNC_TLS */ | |
c5b76b38 | 1099 | ret = recv(vs->csock, (void *)data, datalen, 0); |
23decc87 | 1100 | VNC_DEBUG("Read wire %p %zd -> %ld\n", data, datalen, ret); |
2f9606b3 AL |
1101 | return vnc_client_io_error(vs, ret, socket_error()); |
1102 | } | |
24236869 | 1103 | |
2f9606b3 AL |
1104 | |
1105 | /* | |
1106 | * Called to read data from the client socket to the input buffer, | |
1107 | * when not using any SASL SSF encryption layers. Will read as much | |
1108 | * data as possible without blocking. | |
1109 | * | |
1110 | * Returns the number of bytes read. Returns -1 on error, and | |
1111 | * disconnects the client socket. | |
1112 | */ | |
1113 | static long vnc_client_read_plain(VncState *vs) | |
1114 | { | |
1115 | int ret; | |
23decc87 | 1116 | VNC_DEBUG("Read plain %p size %zd offset %zd\n", |
2f9606b3 AL |
1117 | vs->input.buffer, vs->input.capacity, vs->input.offset); |
1118 | buffer_reserve(&vs->input, 4096); | |
1119 | ret = vnc_client_read_buf(vs, buffer_end(&vs->input), 4096); | |
1120 | if (!ret) | |
1121 | return 0; | |
24236869 | 1122 | vs->input.offset += ret; |
2f9606b3 AL |
1123 | return ret; |
1124 | } | |
1125 | ||
1126 | ||
1127 | /* | |
1128 | * First function called whenever there is more data to be read from | |
1129 | * the client socket. Will delegate actual work according to whether | |
1130 | * SASL SSF layers are enabled (thus requiring decryption calls) | |
1131 | */ | |
1132 | void vnc_client_read(void *opaque) | |
1133 | { | |
1134 | VncState *vs = opaque; | |
1135 | long ret; | |
1136 | ||
1137 | #ifdef CONFIG_VNC_SASL | |
1138 | if (vs->sasl.conn && vs->sasl.runSSF) | |
1139 | ret = vnc_client_read_sasl(vs); | |
1140 | else | |
1141 | #endif /* CONFIG_VNC_SASL */ | |
1142 | ret = vnc_client_read_plain(vs); | |
198a0039 GH |
1143 | if (!ret) { |
1144 | if (vs->csock == -1) | |
1145 | vnc_disconnect_finish(vs); | |
28a76be8 | 1146 | return; |
198a0039 | 1147 | } |
24236869 FB |
1148 | |
1149 | while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) { | |
28a76be8 AL |
1150 | size_t len = vs->read_handler_expect; |
1151 | int ret; | |
1152 | ||
1153 | ret = vs->read_handler(vs, vs->input.buffer, len); | |
198a0039 GH |
1154 | if (vs->csock == -1) { |
1155 | vnc_disconnect_finish(vs); | |
28a76be8 | 1156 | return; |
198a0039 | 1157 | } |
28a76be8 AL |
1158 | |
1159 | if (!ret) { | |
1160 | memmove(vs->input.buffer, vs->input.buffer + len, (vs->input.offset - len)); | |
1161 | vs->input.offset -= len; | |
1162 | } else { | |
1163 | vs->read_handler_expect = ret; | |
1164 | } | |
24236869 FB |
1165 | } |
1166 | } | |
1167 | ||
5fb6c7a8 | 1168 | void vnc_write(VncState *vs, const void *data, size_t len) |
24236869 FB |
1169 | { |
1170 | buffer_reserve(&vs->output, len); | |
1171 | ||
198a0039 | 1172 | if (vs->csock != -1 && buffer_empty(&vs->output)) { |
28a76be8 | 1173 | qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs); |
24236869 FB |
1174 | } |
1175 | ||
1176 | buffer_append(&vs->output, data, len); | |
1177 | } | |
1178 | ||
5fb6c7a8 | 1179 | void vnc_write_s32(VncState *vs, int32_t value) |
24236869 FB |
1180 | { |
1181 | vnc_write_u32(vs, *(uint32_t *)&value); | |
1182 | } | |
1183 | ||
5fb6c7a8 | 1184 | void vnc_write_u32(VncState *vs, uint32_t value) |
24236869 FB |
1185 | { |
1186 | uint8_t buf[4]; | |
1187 | ||
1188 | buf[0] = (value >> 24) & 0xFF; | |
1189 | buf[1] = (value >> 16) & 0xFF; | |
1190 | buf[2] = (value >> 8) & 0xFF; | |
1191 | buf[3] = value & 0xFF; | |
1192 | ||
1193 | vnc_write(vs, buf, 4); | |
1194 | } | |
1195 | ||
5fb6c7a8 | 1196 | void vnc_write_u16(VncState *vs, uint16_t value) |
24236869 | 1197 | { |
64f5a135 | 1198 | uint8_t buf[2]; |
24236869 FB |
1199 | |
1200 | buf[0] = (value >> 8) & 0xFF; | |
1201 | buf[1] = value & 0xFF; | |
1202 | ||
1203 | vnc_write(vs, buf, 2); | |
1204 | } | |
1205 | ||
5fb6c7a8 | 1206 | void vnc_write_u8(VncState *vs, uint8_t value) |
24236869 FB |
1207 | { |
1208 | vnc_write(vs, (char *)&value, 1); | |
1209 | } | |
1210 | ||
5fb6c7a8 | 1211 | void vnc_flush(VncState *vs) |
24236869 | 1212 | { |
198a0039 | 1213 | if (vs->csock != -1 && vs->output.offset) |
28a76be8 | 1214 | vnc_client_write(vs); |
24236869 FB |
1215 | } |
1216 | ||
5fb6c7a8 | 1217 | uint8_t read_u8(uint8_t *data, size_t offset) |
24236869 FB |
1218 | { |
1219 | return data[offset]; | |
1220 | } | |
1221 | ||
5fb6c7a8 | 1222 | uint16_t read_u16(uint8_t *data, size_t offset) |
24236869 FB |
1223 | { |
1224 | return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF); | |
1225 | } | |
1226 | ||
5fb6c7a8 | 1227 | int32_t read_s32(uint8_t *data, size_t offset) |
24236869 FB |
1228 | { |
1229 | return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) | | |
28a76be8 | 1230 | (data[offset + 2] << 8) | data[offset + 3]); |
24236869 FB |
1231 | } |
1232 | ||
5fb6c7a8 | 1233 | uint32_t read_u32(uint8_t *data, size_t offset) |
24236869 FB |
1234 | { |
1235 | return ((data[offset] << 24) | (data[offset + 1] << 16) | | |
28a76be8 | 1236 | (data[offset + 2] << 8) | data[offset + 3]); |
24236869 FB |
1237 | } |
1238 | ||
60fe76f3 | 1239 | static void client_cut_text(VncState *vs, size_t len, uint8_t *text) |
24236869 FB |
1240 | { |
1241 | } | |
1242 | ||
564c337e FB |
1243 | static void check_pointer_type_change(VncState *vs, int absolute) |
1244 | { | |
29fa4ed9 | 1245 | if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE) && vs->absolute != absolute) { |
28a76be8 AL |
1246 | vnc_write_u8(vs, 0); |
1247 | vnc_write_u8(vs, 0); | |
1248 | vnc_write_u16(vs, 1); | |
1249 | vnc_framebuffer_update(vs, absolute, 0, | |
1250 | ds_get_width(vs->ds), ds_get_height(vs->ds), | |
29fa4ed9 | 1251 | VNC_ENCODING_POINTER_TYPE_CHANGE); |
28a76be8 | 1252 | vnc_flush(vs); |
564c337e FB |
1253 | } |
1254 | vs->absolute = absolute; | |
1255 | } | |
1256 | ||
24236869 FB |
1257 | static void pointer_event(VncState *vs, int button_mask, int x, int y) |
1258 | { | |
1259 | int buttons = 0; | |
1260 | int dz = 0; | |
1261 | ||
1262 | if (button_mask & 0x01) | |
28a76be8 | 1263 | buttons |= MOUSE_EVENT_LBUTTON; |
24236869 | 1264 | if (button_mask & 0x02) |
28a76be8 | 1265 | buttons |= MOUSE_EVENT_MBUTTON; |
24236869 | 1266 | if (button_mask & 0x04) |
28a76be8 | 1267 | buttons |= MOUSE_EVENT_RBUTTON; |
24236869 | 1268 | if (button_mask & 0x08) |
28a76be8 | 1269 | dz = -1; |
24236869 | 1270 | if (button_mask & 0x10) |
28a76be8 | 1271 | dz = 1; |
564c337e FB |
1272 | |
1273 | if (vs->absolute) { | |
28a76be8 AL |
1274 | kbd_mouse_event(x * 0x7FFF / (ds_get_width(vs->ds) - 1), |
1275 | y * 0x7FFF / (ds_get_height(vs->ds) - 1), | |
1276 | dz, buttons); | |
29fa4ed9 | 1277 | } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) { |
28a76be8 AL |
1278 | x -= 0x7FFF; |
1279 | y -= 0x7FFF; | |
24236869 | 1280 | |
28a76be8 | 1281 | kbd_mouse_event(x, y, dz, buttons); |
564c337e | 1282 | } else { |
28a76be8 AL |
1283 | if (vs->last_x != -1) |
1284 | kbd_mouse_event(x - vs->last_x, | |
1285 | y - vs->last_y, | |
1286 | dz, buttons); | |
1287 | vs->last_x = x; | |
1288 | vs->last_y = y; | |
24236869 | 1289 | } |
564c337e FB |
1290 | |
1291 | check_pointer_type_change(vs, kbd_mouse_is_absolute()); | |
24236869 FB |
1292 | } |
1293 | ||
64f5a135 FB |
1294 | static void reset_keys(VncState *vs) |
1295 | { | |
1296 | int i; | |
1297 | for(i = 0; i < 256; i++) { | |
1298 | if (vs->modifiers_state[i]) { | |
1299 | if (i & 0x80) | |
1300 | kbd_put_keycode(0xe0); | |
1301 | kbd_put_keycode(i | 0x80); | |
1302 | vs->modifiers_state[i] = 0; | |
1303 | } | |
1304 | } | |
1305 | } | |
1306 | ||
a528b80c AZ |
1307 | static void press_key(VncState *vs, int keysym) |
1308 | { | |
753b4053 AL |
1309 | kbd_put_keycode(keysym2scancode(vs->vd->kbd_layout, keysym) & 0x7f); |
1310 | kbd_put_keycode(keysym2scancode(vs->vd->kbd_layout, keysym) | 0x80); | |
a528b80c AZ |
1311 | } |
1312 | ||
9ca313aa | 1313 | static void do_key_event(VncState *vs, int down, int keycode, int sym) |
24236869 | 1314 | { |
64f5a135 FB |
1315 | /* QEMU console switch */ |
1316 | switch(keycode) { | |
1317 | case 0x2a: /* Left Shift */ | |
1318 | case 0x36: /* Right Shift */ | |
1319 | case 0x1d: /* Left CTRL */ | |
1320 | case 0x9d: /* Right CTRL */ | |
1321 | case 0x38: /* Left ALT */ | |
1322 | case 0xb8: /* Right ALT */ | |
1323 | if (down) | |
1324 | vs->modifiers_state[keycode] = 1; | |
1325 | else | |
1326 | vs->modifiers_state[keycode] = 0; | |
1327 | break; | |
5fafdf24 | 1328 | case 0x02 ... 0x0a: /* '1' to '9' keys */ |
64f5a135 FB |
1329 | if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) { |
1330 | /* Reset the modifiers sent to the current console */ | |
1331 | reset_keys(vs); | |
1332 | console_select(keycode - 0x02); | |
1333 | return; | |
1334 | } | |
1335 | break; | |
28a76be8 AL |
1336 | case 0x3a: /* CapsLock */ |
1337 | case 0x45: /* NumLock */ | |
a528b80c AZ |
1338 | if (!down) |
1339 | vs->modifiers_state[keycode] ^= 1; | |
1340 | break; | |
1341 | } | |
1342 | ||
753b4053 | 1343 | if (keycode_is_keypad(vs->vd->kbd_layout, keycode)) { |
a528b80c AZ |
1344 | /* If the numlock state needs to change then simulate an additional |
1345 | keypress before sending this one. This will happen if the user | |
1346 | toggles numlock away from the VNC window. | |
1347 | */ | |
753b4053 | 1348 | if (keysym_is_numlock(vs->vd->kbd_layout, sym & 0xFFFF)) { |
a528b80c AZ |
1349 | if (!vs->modifiers_state[0x45]) { |
1350 | vs->modifiers_state[0x45] = 1; | |
1351 | press_key(vs, 0xff7f); | |
1352 | } | |
1353 | } else { | |
1354 | if (vs->modifiers_state[0x45]) { | |
1355 | vs->modifiers_state[0x45] = 0; | |
1356 | press_key(vs, 0xff7f); | |
1357 | } | |
1358 | } | |
64f5a135 | 1359 | } |
24236869 | 1360 | |
64f5a135 FB |
1361 | if (is_graphic_console()) { |
1362 | if (keycode & 0x80) | |
1363 | kbd_put_keycode(0xe0); | |
1364 | if (down) | |
1365 | kbd_put_keycode(keycode & 0x7f); | |
1366 | else | |
1367 | kbd_put_keycode(keycode | 0x80); | |
1368 | } else { | |
1369 | /* QEMU console emulation */ | |
1370 | if (down) { | |
bb0a18e1 | 1371 | int numlock = vs->modifiers_state[0x45]; |
64f5a135 FB |
1372 | switch (keycode) { |
1373 | case 0x2a: /* Left Shift */ | |
1374 | case 0x36: /* Right Shift */ | |
1375 | case 0x1d: /* Left CTRL */ | |
1376 | case 0x9d: /* Right CTRL */ | |
1377 | case 0x38: /* Left ALT */ | |
1378 | case 0xb8: /* Right ALT */ | |
1379 | break; | |
1380 | case 0xc8: | |
1381 | kbd_put_keysym(QEMU_KEY_UP); | |
1382 | break; | |
1383 | case 0xd0: | |
1384 | kbd_put_keysym(QEMU_KEY_DOWN); | |
1385 | break; | |
1386 | case 0xcb: | |
1387 | kbd_put_keysym(QEMU_KEY_LEFT); | |
1388 | break; | |
1389 | case 0xcd: | |
1390 | kbd_put_keysym(QEMU_KEY_RIGHT); | |
1391 | break; | |
1392 | case 0xd3: | |
1393 | kbd_put_keysym(QEMU_KEY_DELETE); | |
1394 | break; | |
1395 | case 0xc7: | |
1396 | kbd_put_keysym(QEMU_KEY_HOME); | |
1397 | break; | |
1398 | case 0xcf: | |
1399 | kbd_put_keysym(QEMU_KEY_END); | |
1400 | break; | |
1401 | case 0xc9: | |
1402 | kbd_put_keysym(QEMU_KEY_PAGEUP); | |
1403 | break; | |
1404 | case 0xd1: | |
1405 | kbd_put_keysym(QEMU_KEY_PAGEDOWN); | |
1406 | break; | |
bb0a18e1 GH |
1407 | |
1408 | case 0x47: | |
1409 | kbd_put_keysym(numlock ? '7' : QEMU_KEY_HOME); | |
1410 | break; | |
1411 | case 0x48: | |
1412 | kbd_put_keysym(numlock ? '8' : QEMU_KEY_UP); | |
1413 | break; | |
1414 | case 0x49: | |
1415 | kbd_put_keysym(numlock ? '9' : QEMU_KEY_PAGEUP); | |
1416 | break; | |
1417 | case 0x4b: | |
1418 | kbd_put_keysym(numlock ? '4' : QEMU_KEY_LEFT); | |
1419 | break; | |
1420 | case 0x4c: | |
1421 | kbd_put_keysym('5'); | |
1422 | break; | |
1423 | case 0x4d: | |
1424 | kbd_put_keysym(numlock ? '6' : QEMU_KEY_RIGHT); | |
1425 | break; | |
1426 | case 0x4f: | |
1427 | kbd_put_keysym(numlock ? '1' : QEMU_KEY_END); | |
1428 | break; | |
1429 | case 0x50: | |
1430 | kbd_put_keysym(numlock ? '2' : QEMU_KEY_DOWN); | |
1431 | break; | |
1432 | case 0x51: | |
1433 | kbd_put_keysym(numlock ? '3' : QEMU_KEY_PAGEDOWN); | |
1434 | break; | |
1435 | case 0x52: | |
1436 | kbd_put_keysym('0'); | |
1437 | break; | |
1438 | case 0x53: | |
1439 | kbd_put_keysym(numlock ? '.' : QEMU_KEY_DELETE); | |
1440 | break; | |
1441 | ||
1442 | case 0xb5: | |
1443 | kbd_put_keysym('/'); | |
1444 | break; | |
1445 | case 0x37: | |
1446 | kbd_put_keysym('*'); | |
1447 | break; | |
1448 | case 0x4a: | |
1449 | kbd_put_keysym('-'); | |
1450 | break; | |
1451 | case 0x4e: | |
1452 | kbd_put_keysym('+'); | |
1453 | break; | |
1454 | case 0x9c: | |
1455 | kbd_put_keysym('\n'); | |
1456 | break; | |
1457 | ||
64f5a135 FB |
1458 | default: |
1459 | kbd_put_keysym(sym); | |
1460 | break; | |
1461 | } | |
1462 | } | |
1463 | } | |
24236869 FB |
1464 | } |
1465 | ||
bdbd7676 FB |
1466 | static void key_event(VncState *vs, int down, uint32_t sym) |
1467 | { | |
9ca313aa AL |
1468 | int keycode; |
1469 | ||
a528b80c | 1470 | if (sym >= 'A' && sym <= 'Z' && is_graphic_console()) |
28a76be8 | 1471 | sym = sym - 'A' + 'a'; |
9ca313aa | 1472 | |
753b4053 | 1473 | keycode = keysym2scancode(vs->vd->kbd_layout, sym & 0xFFFF); |
9ca313aa AL |
1474 | do_key_event(vs, down, keycode, sym); |
1475 | } | |
1476 | ||
1477 | static void ext_key_event(VncState *vs, int down, | |
1478 | uint32_t sym, uint16_t keycode) | |
1479 | { | |
1480 | /* if the user specifies a keyboard layout, always use it */ | |
1481 | if (keyboard_layout) | |
1482 | key_event(vs, down, sym); | |
1483 | else | |
1484 | do_key_event(vs, down, keycode, sym); | |
bdbd7676 FB |
1485 | } |
1486 | ||
24236869 | 1487 | static void framebuffer_update_request(VncState *vs, int incremental, |
28a76be8 AL |
1488 | int x_position, int y_position, |
1489 | int w, int h) | |
24236869 | 1490 | { |
0e1f5a0c AL |
1491 | if (x_position > ds_get_width(vs->ds)) |
1492 | x_position = ds_get_width(vs->ds); | |
1493 | if (y_position > ds_get_height(vs->ds)) | |
1494 | y_position = ds_get_height(vs->ds); | |
1495 | if (x_position + w >= ds_get_width(vs->ds)) | |
1496 | w = ds_get_width(vs->ds) - x_position; | |
1497 | if (y_position + h >= ds_get_height(vs->ds)) | |
1498 | h = ds_get_height(vs->ds) - y_position; | |
cf2d385c | 1499 | |
24236869 FB |
1500 | int i; |
1501 | vs->need_update = 1; | |
1502 | if (!incremental) { | |
24cf0a6e | 1503 | vs->force_update = 1; |
28a76be8 | 1504 | for (i = 0; i < h; i++) { |
1fc62412 | 1505 | vnc_set_bits(vs->dirty[y_position + i], |
0e1f5a0c | 1506 | (ds_get_width(vs->ds) / 16), VNC_DIRTY_WORDS); |
28a76be8 | 1507 | } |
24236869 FB |
1508 | } |
1509 | } | |
1510 | ||
9ca313aa AL |
1511 | static void send_ext_key_event_ack(VncState *vs) |
1512 | { | |
1513 | vnc_write_u8(vs, 0); | |
1514 | vnc_write_u8(vs, 0); | |
1515 | vnc_write_u16(vs, 1); | |
29fa4ed9 AL |
1516 | vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), ds_get_height(vs->ds), |
1517 | VNC_ENCODING_EXT_KEY_EVENT); | |
9ca313aa AL |
1518 | vnc_flush(vs); |
1519 | } | |
1520 | ||
429a8ed3 | 1521 | static void send_ext_audio_ack(VncState *vs) |
1522 | { | |
1523 | vnc_write_u8(vs, 0); | |
1524 | vnc_write_u8(vs, 0); | |
1525 | vnc_write_u16(vs, 1); | |
29fa4ed9 AL |
1526 | vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), ds_get_height(vs->ds), |
1527 | VNC_ENCODING_AUDIO); | |
429a8ed3 | 1528 | vnc_flush(vs); |
1529 | } | |
1530 | ||
24236869 FB |
1531 | static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) |
1532 | { | |
1533 | int i; | |
29fa4ed9 | 1534 | unsigned int enc = 0; |
24236869 | 1535 | |
059cef40 | 1536 | vnc_zlib_init(vs); |
29fa4ed9 | 1537 | vs->features = 0; |
fb437313 AL |
1538 | vs->vnc_encoding = 0; |
1539 | vs->tight_compression = 9; | |
1540 | vs->tight_quality = 9; | |
564c337e | 1541 | vs->absolute = -1; |
24236869 FB |
1542 | |
1543 | for (i = n_encodings - 1; i >= 0; i--) { | |
29fa4ed9 AL |
1544 | enc = encodings[i]; |
1545 | switch (enc) { | |
1546 | case VNC_ENCODING_RAW: | |
fb437313 | 1547 | vs->vnc_encoding = enc; |
29fa4ed9 AL |
1548 | break; |
1549 | case VNC_ENCODING_COPYRECT: | |
753b4053 | 1550 | vs->features |= VNC_FEATURE_COPYRECT_MASK; |
29fa4ed9 AL |
1551 | break; |
1552 | case VNC_ENCODING_HEXTILE: | |
1553 | vs->features |= VNC_FEATURE_HEXTILE_MASK; | |
fb437313 | 1554 | vs->vnc_encoding = enc; |
29fa4ed9 | 1555 | break; |
059cef40 AL |
1556 | case VNC_ENCODING_ZLIB: |
1557 | vs->features |= VNC_FEATURE_ZLIB_MASK; | |
1558 | vs->vnc_encoding = enc; | |
1559 | break; | |
29fa4ed9 AL |
1560 | case VNC_ENCODING_DESKTOPRESIZE: |
1561 | vs->features |= VNC_FEATURE_RESIZE_MASK; | |
1562 | break; | |
1563 | case VNC_ENCODING_POINTER_TYPE_CHANGE: | |
1564 | vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK; | |
1565 | break; | |
1566 | case VNC_ENCODING_EXT_KEY_EVENT: | |
9ca313aa AL |
1567 | send_ext_key_event_ack(vs); |
1568 | break; | |
29fa4ed9 | 1569 | case VNC_ENCODING_AUDIO: |
429a8ed3 | 1570 | send_ext_audio_ack(vs); |
1571 | break; | |
29fa4ed9 AL |
1572 | case VNC_ENCODING_WMVi: |
1573 | vs->features |= VNC_FEATURE_WMVI_MASK; | |
ca4cca4d | 1574 | break; |
fb437313 AL |
1575 | case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9: |
1576 | vs->tight_compression = (enc & 0x0F); | |
1577 | break; | |
1578 | case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9: | |
1579 | vs->tight_quality = (enc & 0x0F); | |
1580 | break; | |
29fa4ed9 AL |
1581 | default: |
1582 | VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc); | |
1583 | break; | |
1584 | } | |
24236869 | 1585 | } |
564c337e FB |
1586 | |
1587 | check_pointer_type_change(vs, kbd_mouse_is_absolute()); | |
24236869 FB |
1588 | } |
1589 | ||
6cec5487 AL |
1590 | static void set_pixel_conversion(VncState *vs) |
1591 | { | |
1592 | if ((vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) == | |
1593 | (vs->ds->surface->flags & QEMU_BIG_ENDIAN_FLAG) && | |
1594 | !memcmp(&(vs->clientds.pf), &(vs->ds->surface->pf), sizeof(PixelFormat))) { | |
1595 | vs->write_pixels = vnc_write_pixels_copy; | |
1596 | switch (vs->ds->surface->pf.bits_per_pixel) { | |
1597 | case 8: | |
1598 | vs->send_hextile_tile = send_hextile_tile_8; | |
1599 | break; | |
1600 | case 16: | |
1601 | vs->send_hextile_tile = send_hextile_tile_16; | |
1602 | break; | |
1603 | case 32: | |
1604 | vs->send_hextile_tile = send_hextile_tile_32; | |
1605 | break; | |
1606 | } | |
1607 | } else { | |
1608 | vs->write_pixels = vnc_write_pixels_generic; | |
1609 | switch (vs->ds->surface->pf.bits_per_pixel) { | |
1610 | case 8: | |
1611 | vs->send_hextile_tile = send_hextile_tile_generic_8; | |
1612 | break; | |
1613 | case 16: | |
1614 | vs->send_hextile_tile = send_hextile_tile_generic_16; | |
1615 | break; | |
1616 | case 32: | |
1617 | vs->send_hextile_tile = send_hextile_tile_generic_32; | |
1618 | break; | |
1619 | } | |
1620 | } | |
1621 | } | |
1622 | ||
24236869 | 1623 | static void set_pixel_format(VncState *vs, |
28a76be8 AL |
1624 | int bits_per_pixel, int depth, |
1625 | int big_endian_flag, int true_color_flag, | |
1626 | int red_max, int green_max, int blue_max, | |
1627 | int red_shift, int green_shift, int blue_shift) | |
24236869 | 1628 | { |
3512779a | 1629 | if (!true_color_flag) { |
28a76be8 | 1630 | vnc_client_error(vs); |
3512779a FB |
1631 | return; |
1632 | } | |
24236869 | 1633 | |
1fc62412 | 1634 | vs->clientds = *(vs->vd->guest.ds); |
6cec5487 | 1635 | vs->clientds.pf.rmax = red_max; |
90a1e3c0 | 1636 | count_bits(vs->clientds.pf.rbits, red_max); |
6cec5487 AL |
1637 | vs->clientds.pf.rshift = red_shift; |
1638 | vs->clientds.pf.rmask = red_max << red_shift; | |
1639 | vs->clientds.pf.gmax = green_max; | |
90a1e3c0 | 1640 | count_bits(vs->clientds.pf.gbits, green_max); |
6cec5487 AL |
1641 | vs->clientds.pf.gshift = green_shift; |
1642 | vs->clientds.pf.gmask = green_max << green_shift; | |
1643 | vs->clientds.pf.bmax = blue_max; | |
90a1e3c0 | 1644 | count_bits(vs->clientds.pf.bbits, blue_max); |
6cec5487 AL |
1645 | vs->clientds.pf.bshift = blue_shift; |
1646 | vs->clientds.pf.bmask = blue_max << blue_shift; | |
1647 | vs->clientds.pf.bits_per_pixel = bits_per_pixel; | |
1648 | vs->clientds.pf.bytes_per_pixel = bits_per_pixel / 8; | |
1649 | vs->clientds.pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel; | |
1650 | vs->clientds.flags = big_endian_flag ? QEMU_BIG_ENDIAN_FLAG : 0x00; | |
1651 | ||
1652 | set_pixel_conversion(vs); | |
24236869 FB |
1653 | |
1654 | vga_hw_invalidate(); | |
1655 | vga_hw_update(); | |
1656 | } | |
1657 | ||
ca4cca4d AL |
1658 | static void pixel_format_message (VncState *vs) { |
1659 | char pad[3] = { 0, 0, 0 }; | |
1660 | ||
6cec5487 AL |
1661 | vnc_write_u8(vs, vs->ds->surface->pf.bits_per_pixel); /* bits-per-pixel */ |
1662 | vnc_write_u8(vs, vs->ds->surface->pf.depth); /* depth */ | |
ca4cca4d | 1663 | |
e2542fe2 | 1664 | #ifdef HOST_WORDS_BIGENDIAN |
ca4cca4d AL |
1665 | vnc_write_u8(vs, 1); /* big-endian-flag */ |
1666 | #else | |
1667 | vnc_write_u8(vs, 0); /* big-endian-flag */ | |
1668 | #endif | |
1669 | vnc_write_u8(vs, 1); /* true-color-flag */ | |
6cec5487 AL |
1670 | vnc_write_u16(vs, vs->ds->surface->pf.rmax); /* red-max */ |
1671 | vnc_write_u16(vs, vs->ds->surface->pf.gmax); /* green-max */ | |
1672 | vnc_write_u16(vs, vs->ds->surface->pf.bmax); /* blue-max */ | |
1673 | vnc_write_u8(vs, vs->ds->surface->pf.rshift); /* red-shift */ | |
1674 | vnc_write_u8(vs, vs->ds->surface->pf.gshift); /* green-shift */ | |
1675 | vnc_write_u8(vs, vs->ds->surface->pf.bshift); /* blue-shift */ | |
1676 | if (vs->ds->surface->pf.bits_per_pixel == 32) | |
ca4cca4d | 1677 | vs->send_hextile_tile = send_hextile_tile_32; |
6cec5487 | 1678 | else if (vs->ds->surface->pf.bits_per_pixel == 16) |
ca4cca4d | 1679 | vs->send_hextile_tile = send_hextile_tile_16; |
6cec5487 | 1680 | else if (vs->ds->surface->pf.bits_per_pixel == 8) |
ca4cca4d | 1681 | vs->send_hextile_tile = send_hextile_tile_8; |
6cec5487 | 1682 | vs->clientds = *(vs->ds->surface); |
3cded540 | 1683 | vs->clientds.flags &= ~QEMU_ALLOCATED_FLAG; |
ca4cca4d AL |
1684 | vs->write_pixels = vnc_write_pixels_copy; |
1685 | ||
1686 | vnc_write(vs, pad, 3); /* padding */ | |
1687 | } | |
1688 | ||
7d957bd8 AL |
1689 | static void vnc_dpy_setdata(DisplayState *ds) |
1690 | { | |
1691 | /* We don't have to do anything */ | |
1692 | } | |
1693 | ||
753b4053 | 1694 | static void vnc_colordepth(VncState *vs) |
7eac3a87 | 1695 | { |
753b4053 | 1696 | if (vnc_has_feature(vs, VNC_FEATURE_WMVI)) { |
ca4cca4d AL |
1697 | /* Sending a WMVi message to notify the client*/ |
1698 | vnc_write_u8(vs, 0); /* msg id */ | |
1699 | vnc_write_u8(vs, 0); | |
1700 | vnc_write_u16(vs, 1); /* number of rects */ | |
753b4053 AL |
1701 | vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), |
1702 | ds_get_height(vs->ds), VNC_ENCODING_WMVi); | |
ca4cca4d AL |
1703 | pixel_format_message(vs); |
1704 | vnc_flush(vs); | |
7eac3a87 | 1705 | } else { |
6cec5487 | 1706 | set_pixel_conversion(vs); |
7eac3a87 AL |
1707 | } |
1708 | } | |
1709 | ||
60fe76f3 | 1710 | static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len) |
24236869 FB |
1711 | { |
1712 | int i; | |
1713 | uint16_t limit; | |
2430ffe4 SS |
1714 | VncDisplay *vd = vs->vd; |
1715 | ||
1716 | if (data[0] > 3) { | |
1717 | vd->timer_interval = VNC_REFRESH_INTERVAL_BASE; | |
1718 | if (!qemu_timer_expired(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval)) | |
1719 | qemu_mod_timer(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval); | |
1720 | } | |
24236869 FB |
1721 | |
1722 | switch (data[0]) { | |
1723 | case 0: | |
28a76be8 AL |
1724 | if (len == 1) |
1725 | return 20; | |
1726 | ||
1727 | set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5), | |
1728 | read_u8(data, 6), read_u8(data, 7), | |
1729 | read_u16(data, 8), read_u16(data, 10), | |
1730 | read_u16(data, 12), read_u8(data, 14), | |
1731 | read_u8(data, 15), read_u8(data, 16)); | |
1732 | break; | |
24236869 | 1733 | case 2: |
28a76be8 AL |
1734 | if (len == 1) |
1735 | return 4; | |
24236869 | 1736 | |
28a76be8 | 1737 | if (len == 4) { |
69dd5c9f AL |
1738 | limit = read_u16(data, 2); |
1739 | if (limit > 0) | |
1740 | return 4 + (limit * 4); | |
1741 | } else | |
1742 | limit = read_u16(data, 2); | |
24236869 | 1743 | |
28a76be8 AL |
1744 | for (i = 0; i < limit; i++) { |
1745 | int32_t val = read_s32(data, 4 + (i * 4)); | |
1746 | memcpy(data + 4 + (i * 4), &val, sizeof(val)); | |
1747 | } | |
24236869 | 1748 | |
28a76be8 AL |
1749 | set_encodings(vs, (int32_t *)(data + 4), limit); |
1750 | break; | |
24236869 | 1751 | case 3: |
28a76be8 AL |
1752 | if (len == 1) |
1753 | return 10; | |
24236869 | 1754 | |
28a76be8 AL |
1755 | framebuffer_update_request(vs, |
1756 | read_u8(data, 1), read_u16(data, 2), read_u16(data, 4), | |
1757 | read_u16(data, 6), read_u16(data, 8)); | |
1758 | break; | |
24236869 | 1759 | case 4: |
28a76be8 AL |
1760 | if (len == 1) |
1761 | return 8; | |
24236869 | 1762 | |
28a76be8 AL |
1763 | key_event(vs, read_u8(data, 1), read_u32(data, 4)); |
1764 | break; | |
24236869 | 1765 | case 5: |
28a76be8 AL |
1766 | if (len == 1) |
1767 | return 6; | |
24236869 | 1768 | |
28a76be8 AL |
1769 | pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4)); |
1770 | break; | |
24236869 | 1771 | case 6: |
28a76be8 AL |
1772 | if (len == 1) |
1773 | return 8; | |
24236869 | 1774 | |
28a76be8 | 1775 | if (len == 8) { |
baa7666c TS |
1776 | uint32_t dlen = read_u32(data, 4); |
1777 | if (dlen > 0) | |
1778 | return 8 + dlen; | |
1779 | } | |
24236869 | 1780 | |
28a76be8 AL |
1781 | client_cut_text(vs, read_u32(data, 4), data + 8); |
1782 | break; | |
9ca313aa AL |
1783 | case 255: |
1784 | if (len == 1) | |
1785 | return 2; | |
1786 | ||
1787 | switch (read_u8(data, 1)) { | |
1788 | case 0: | |
1789 | if (len == 2) | |
1790 | return 12; | |
1791 | ||
1792 | ext_key_event(vs, read_u16(data, 2), | |
1793 | read_u32(data, 4), read_u32(data, 8)); | |
1794 | break; | |
429a8ed3 | 1795 | case 1: |
1796 | if (len == 2) | |
1797 | return 4; | |
1798 | ||
1799 | switch (read_u16 (data, 2)) { | |
1800 | case 0: | |
1801 | audio_add(vs); | |
1802 | break; | |
1803 | case 1: | |
1804 | audio_del(vs); | |
1805 | break; | |
1806 | case 2: | |
1807 | if (len == 4) | |
1808 | return 10; | |
1809 | switch (read_u8(data, 4)) { | |
1810 | case 0: vs->as.fmt = AUD_FMT_U8; break; | |
1811 | case 1: vs->as.fmt = AUD_FMT_S8; break; | |
1812 | case 2: vs->as.fmt = AUD_FMT_U16; break; | |
1813 | case 3: vs->as.fmt = AUD_FMT_S16; break; | |
1814 | case 4: vs->as.fmt = AUD_FMT_U32; break; | |
1815 | case 5: vs->as.fmt = AUD_FMT_S32; break; | |
1816 | default: | |
1817 | printf("Invalid audio format %d\n", read_u8(data, 4)); | |
1818 | vnc_client_error(vs); | |
1819 | break; | |
1820 | } | |
1821 | vs->as.nchannels = read_u8(data, 5); | |
1822 | if (vs->as.nchannels != 1 && vs->as.nchannels != 2) { | |
1823 | printf("Invalid audio channel coount %d\n", | |
1824 | read_u8(data, 5)); | |
1825 | vnc_client_error(vs); | |
1826 | break; | |
1827 | } | |
1828 | vs->as.freq = read_u32(data, 6); | |
1829 | break; | |
1830 | default: | |
1831 | printf ("Invalid audio message %d\n", read_u8(data, 4)); | |
1832 | vnc_client_error(vs); | |
1833 | break; | |
1834 | } | |
1835 | break; | |
1836 | ||
9ca313aa AL |
1837 | default: |
1838 | printf("Msg: %d\n", read_u16(data, 0)); | |
1839 | vnc_client_error(vs); | |
1840 | break; | |
1841 | } | |
1842 | break; | |
24236869 | 1843 | default: |
28a76be8 AL |
1844 | printf("Msg: %d\n", data[0]); |
1845 | vnc_client_error(vs); | |
1846 | break; | |
24236869 | 1847 | } |
5fafdf24 | 1848 | |
24236869 FB |
1849 | vnc_read_when(vs, protocol_client_msg, 1); |
1850 | return 0; | |
1851 | } | |
1852 | ||
60fe76f3 | 1853 | static int protocol_client_init(VncState *vs, uint8_t *data, size_t len) |
24236869 | 1854 | { |
c35734b2 TS |
1855 | char buf[1024]; |
1856 | int size; | |
24236869 | 1857 | |
0e1f5a0c AL |
1858 | vnc_write_u16(vs, ds_get_width(vs->ds)); |
1859 | vnc_write_u16(vs, ds_get_height(vs->ds)); | |
24236869 | 1860 | |
ca4cca4d | 1861 | pixel_format_message(vs); |
24236869 | 1862 | |
c35734b2 TS |
1863 | if (qemu_name) |
1864 | size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name); | |
1865 | else | |
1866 | size = snprintf(buf, sizeof(buf), "QEMU"); | |
1867 | ||
1868 | vnc_write_u32(vs, size); | |
1869 | vnc_write(vs, buf, size); | |
24236869 FB |
1870 | vnc_flush(vs); |
1871 | ||
1872 | vnc_read_when(vs, protocol_client_msg, 1); | |
1873 | ||
1874 | return 0; | |
1875 | } | |
1876 | ||
5fb6c7a8 AL |
1877 | void start_client_init(VncState *vs) |
1878 | { | |
1879 | vnc_read_when(vs, protocol_client_init, 1); | |
1880 | } | |
1881 | ||
70848515 TS |
1882 | static void make_challenge(VncState *vs) |
1883 | { | |
1884 | int i; | |
1885 | ||
1886 | srand(time(NULL)+getpid()+getpid()*987654+rand()); | |
1887 | ||
1888 | for (i = 0 ; i < sizeof(vs->challenge) ; i++) | |
1889 | vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0)); | |
1890 | } | |
1891 | ||
60fe76f3 | 1892 | static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len) |
70848515 | 1893 | { |
60fe76f3 | 1894 | unsigned char response[VNC_AUTH_CHALLENGE_SIZE]; |
70848515 | 1895 | int i, j, pwlen; |
60fe76f3 | 1896 | unsigned char key[8]; |
70848515 | 1897 | |
753b4053 | 1898 | if (!vs->vd->password || !vs->vd->password[0]) { |
28a76be8 AL |
1899 | VNC_DEBUG("No password configured on server"); |
1900 | vnc_write_u32(vs, 1); /* Reject auth */ | |
1901 | if (vs->minor >= 8) { | |
1902 | static const char err[] = "Authentication failed"; | |
1903 | vnc_write_u32(vs, sizeof(err)); | |
1904 | vnc_write(vs, err, sizeof(err)); | |
1905 | } | |
1906 | vnc_flush(vs); | |
1907 | vnc_client_error(vs); | |
1908 | return 0; | |
70848515 TS |
1909 | } |
1910 | ||
1911 | memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE); | |
1912 | ||
1913 | /* Calculate the expected challenge response */ | |
753b4053 | 1914 | pwlen = strlen(vs->vd->password); |
70848515 | 1915 | for (i=0; i<sizeof(key); i++) |
753b4053 | 1916 | key[i] = i<pwlen ? vs->vd->password[i] : 0; |
70848515 TS |
1917 | deskey(key, EN0); |
1918 | for (j = 0; j < VNC_AUTH_CHALLENGE_SIZE; j += 8) | |
1919 | des(response+j, response+j); | |
1920 | ||
1921 | /* Compare expected vs actual challenge response */ | |
1922 | if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) { | |
28a76be8 AL |
1923 | VNC_DEBUG("Client challenge reponse did not match\n"); |
1924 | vnc_write_u32(vs, 1); /* Reject auth */ | |
1925 | if (vs->minor >= 8) { | |
1926 | static const char err[] = "Authentication failed"; | |
1927 | vnc_write_u32(vs, sizeof(err)); | |
1928 | vnc_write(vs, err, sizeof(err)); | |
1929 | } | |
1930 | vnc_flush(vs); | |
1931 | vnc_client_error(vs); | |
70848515 | 1932 | } else { |
28a76be8 AL |
1933 | VNC_DEBUG("Accepting VNC challenge response\n"); |
1934 | vnc_write_u32(vs, 0); /* Accept auth */ | |
1935 | vnc_flush(vs); | |
70848515 | 1936 | |
5fb6c7a8 | 1937 | start_client_init(vs); |
70848515 TS |
1938 | } |
1939 | return 0; | |
1940 | } | |
1941 | ||
5fb6c7a8 | 1942 | void start_auth_vnc(VncState *vs) |
70848515 TS |
1943 | { |
1944 | make_challenge(vs); | |
1945 | /* Send client a 'random' challenge */ | |
1946 | vnc_write(vs, vs->challenge, sizeof(vs->challenge)); | |
1947 | vnc_flush(vs); | |
1948 | ||
1949 | vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge)); | |
469b15c6 TS |
1950 | } |
1951 | ||
1952 | ||
60fe76f3 | 1953 | static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len) |
70848515 TS |
1954 | { |
1955 | /* We only advertise 1 auth scheme at a time, so client | |
1956 | * must pick the one we sent. Verify this */ | |
753b4053 | 1957 | if (data[0] != vs->vd->auth) { /* Reject auth */ |
1263b7d6 | 1958 | VNC_DEBUG("Reject auth %d because it didn't match advertized\n", (int)data[0]); |
70848515 TS |
1959 | vnc_write_u32(vs, 1); |
1960 | if (vs->minor >= 8) { | |
1961 | static const char err[] = "Authentication failed"; | |
1962 | vnc_write_u32(vs, sizeof(err)); | |
1963 | vnc_write(vs, err, sizeof(err)); | |
1964 | } | |
1965 | vnc_client_error(vs); | |
1966 | } else { /* Accept requested auth */ | |
1967 | VNC_DEBUG("Client requested auth %d\n", (int)data[0]); | |
753b4053 | 1968 | switch (vs->vd->auth) { |
70848515 TS |
1969 | case VNC_AUTH_NONE: |
1970 | VNC_DEBUG("Accept auth none\n"); | |
a26c97ad AZ |
1971 | if (vs->minor >= 8) { |
1972 | vnc_write_u32(vs, 0); /* Accept auth completion */ | |
1973 | vnc_flush(vs); | |
1974 | } | |
5fb6c7a8 | 1975 | start_client_init(vs); |
70848515 TS |
1976 | break; |
1977 | ||
1978 | case VNC_AUTH_VNC: | |
1979 | VNC_DEBUG("Start VNC auth\n"); | |
5fb6c7a8 AL |
1980 | start_auth_vnc(vs); |
1981 | break; | |
70848515 | 1982 | |
eb38c52c | 1983 | #ifdef CONFIG_VNC_TLS |
8d5d2d4c TS |
1984 | case VNC_AUTH_VENCRYPT: |
1985 | VNC_DEBUG("Accept VeNCrypt auth\n");; | |
5fb6c7a8 AL |
1986 | start_auth_vencrypt(vs); |
1987 | break; | |
8d5d2d4c TS |
1988 | #endif /* CONFIG_VNC_TLS */ |
1989 | ||
2f9606b3 AL |
1990 | #ifdef CONFIG_VNC_SASL |
1991 | case VNC_AUTH_SASL: | |
1992 | VNC_DEBUG("Accept SASL auth\n"); | |
1993 | start_auth_sasl(vs); | |
1994 | break; | |
1995 | #endif /* CONFIG_VNC_SASL */ | |
1996 | ||
70848515 | 1997 | default: /* Should not be possible, but just in case */ |
1263b7d6 | 1998 | VNC_DEBUG("Reject auth %d server code bug\n", vs->vd->auth); |
70848515 TS |
1999 | vnc_write_u8(vs, 1); |
2000 | if (vs->minor >= 8) { | |
2001 | static const char err[] = "Authentication failed"; | |
2002 | vnc_write_u32(vs, sizeof(err)); | |
2003 | vnc_write(vs, err, sizeof(err)); | |
2004 | } | |
2005 | vnc_client_error(vs); | |
2006 | } | |
2007 | } | |
2008 | return 0; | |
2009 | } | |
2010 | ||
60fe76f3 | 2011 | static int protocol_version(VncState *vs, uint8_t *version, size_t len) |
24236869 FB |
2012 | { |
2013 | char local[13]; | |
24236869 FB |
2014 | |
2015 | memcpy(local, version, 12); | |
2016 | local[12] = 0; | |
2017 | ||
70848515 | 2018 | if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) { |
28a76be8 AL |
2019 | VNC_DEBUG("Malformed protocol version %s\n", local); |
2020 | vnc_client_error(vs); | |
2021 | return 0; | |
24236869 | 2022 | } |
70848515 TS |
2023 | VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor); |
2024 | if (vs->major != 3 || | |
28a76be8 AL |
2025 | (vs->minor != 3 && |
2026 | vs->minor != 4 && | |
2027 | vs->minor != 5 && | |
2028 | vs->minor != 7 && | |
2029 | vs->minor != 8)) { | |
2030 | VNC_DEBUG("Unsupported client version\n"); | |
2031 | vnc_write_u32(vs, VNC_AUTH_INVALID); | |
2032 | vnc_flush(vs); | |
2033 | vnc_client_error(vs); | |
2034 | return 0; | |
70848515 | 2035 | } |
b0566f4f | 2036 | /* Some broken clients report v3.4 or v3.5, which spec requires to be treated |
70848515 TS |
2037 | * as equivalent to v3.3 by servers |
2038 | */ | |
b0566f4f | 2039 | if (vs->minor == 4 || vs->minor == 5) |
28a76be8 | 2040 | vs->minor = 3; |
70848515 TS |
2041 | |
2042 | if (vs->minor == 3) { | |
28a76be8 | 2043 | if (vs->vd->auth == VNC_AUTH_NONE) { |
70848515 | 2044 | VNC_DEBUG("Tell client auth none\n"); |
753b4053 | 2045 | vnc_write_u32(vs, vs->vd->auth); |
70848515 | 2046 | vnc_flush(vs); |
28a76be8 | 2047 | start_client_init(vs); |
753b4053 | 2048 | } else if (vs->vd->auth == VNC_AUTH_VNC) { |
70848515 | 2049 | VNC_DEBUG("Tell client VNC auth\n"); |
753b4053 | 2050 | vnc_write_u32(vs, vs->vd->auth); |
70848515 TS |
2051 | vnc_flush(vs); |
2052 | start_auth_vnc(vs); | |
2053 | } else { | |
753b4053 | 2054 | VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->vd->auth); |
70848515 TS |
2055 | vnc_write_u32(vs, VNC_AUTH_INVALID); |
2056 | vnc_flush(vs); | |
2057 | vnc_client_error(vs); | |
2058 | } | |
2059 | } else { | |
28a76be8 AL |
2060 | VNC_DEBUG("Telling client we support auth %d\n", vs->vd->auth); |
2061 | vnc_write_u8(vs, 1); /* num auth */ | |
2062 | vnc_write_u8(vs, vs->vd->auth); | |
2063 | vnc_read_when(vs, protocol_client_auth, 1); | |
2064 | vnc_flush(vs); | |
70848515 | 2065 | } |
24236869 FB |
2066 | |
2067 | return 0; | |
2068 | } | |
2069 | ||
1fc62412 SS |
2070 | static int vnc_refresh_server_surface(VncDisplay *vd) |
2071 | { | |
2072 | int y; | |
2073 | uint8_t *guest_row; | |
2074 | uint8_t *server_row; | |
2075 | int cmp_bytes; | |
2076 | uint32_t width_mask[VNC_DIRTY_WORDS]; | |
2077 | VncState *vs = NULL; | |
2078 | int has_dirty = 0; | |
2079 | ||
2080 | /* | |
2081 | * Walk through the guest dirty map. | |
2082 | * Check and copy modified bits from guest to server surface. | |
2083 | * Update server dirty map. | |
2084 | */ | |
2085 | vnc_set_bits(width_mask, (ds_get_width(vd->ds) / 16), VNC_DIRTY_WORDS); | |
2086 | cmp_bytes = 16 * ds_get_bytes_per_pixel(vd->ds); | |
2087 | guest_row = vd->guest.ds->data; | |
2088 | server_row = vd->server->data; | |
2089 | for (y = 0; y < vd->guest.ds->height; y++) { | |
2090 | if (vnc_and_bits(vd->guest.dirty[y], width_mask, VNC_DIRTY_WORDS)) { | |
2091 | int x; | |
2092 | uint8_t *guest_ptr; | |
2093 | uint8_t *server_ptr; | |
2094 | ||
2095 | guest_ptr = guest_row; | |
2096 | server_ptr = server_row; | |
2097 | ||
2098 | for (x = 0; x < vd->guest.ds->width; | |
2099 | x += 16, guest_ptr += cmp_bytes, server_ptr += cmp_bytes) { | |
2100 | if (!vnc_get_bit(vd->guest.dirty[y], (x / 16))) | |
2101 | continue; | |
2102 | vnc_clear_bit(vd->guest.dirty[y], (x / 16)); | |
2103 | if (memcmp(server_ptr, guest_ptr, cmp_bytes) == 0) | |
2104 | continue; | |
2105 | memcpy(server_ptr, guest_ptr, cmp_bytes); | |
2106 | vs = vd->clients; | |
2107 | while (vs != NULL) { | |
2108 | vnc_set_bit(vs->dirty[y], (x / 16)); | |
2109 | vs = vs->next; | |
2110 | } | |
2111 | has_dirty++; | |
2112 | } | |
2113 | } | |
2114 | guest_row += ds_get_linesize(vd->ds); | |
2115 | server_row += ds_get_linesize(vd->ds); | |
2116 | } | |
2117 | return has_dirty; | |
2118 | } | |
2119 | ||
703bc68f SS |
2120 | static void vnc_refresh(void *opaque) |
2121 | { | |
2122 | VncDisplay *vd = opaque; | |
1fc62412 | 2123 | VncState *vs = NULL; |
2430ffe4 | 2124 | int has_dirty = 0, rects = 0; |
703bc68f SS |
2125 | |
2126 | vga_hw_update(); | |
2127 | ||
1fc62412 SS |
2128 | has_dirty = vnc_refresh_server_surface(vd); |
2129 | ||
2130 | vs = vd->clients; | |
703bc68f | 2131 | while (vs != NULL) { |
2430ffe4 | 2132 | rects += vnc_update_client(vs, has_dirty); |
703bc68f SS |
2133 | vs = vs->next; |
2134 | } | |
2135 | ||
2430ffe4 SS |
2136 | if (has_dirty && rects) { |
2137 | vd->timer_interval /= 2; | |
2138 | if (vd->timer_interval < VNC_REFRESH_INTERVAL_BASE) | |
2139 | vd->timer_interval = VNC_REFRESH_INTERVAL_BASE; | |
2140 | } else { | |
2141 | vd->timer_interval += VNC_REFRESH_INTERVAL_INC; | |
2142 | if (vd->timer_interval > VNC_REFRESH_INTERVAL_MAX) | |
2143 | vd->timer_interval = VNC_REFRESH_INTERVAL_MAX; | |
2144 | } | |
2145 | qemu_mod_timer(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval); | |
703bc68f SS |
2146 | } |
2147 | ||
2148 | static void vnc_init_timer(VncDisplay *vd) | |
2149 | { | |
2430ffe4 | 2150 | vd->timer_interval = VNC_REFRESH_INTERVAL_BASE; |
703bc68f SS |
2151 | if (vd->timer == NULL && vd->clients != NULL) { |
2152 | vd->timer = qemu_new_timer(rt_clock, vnc_refresh, vd); | |
1fc62412 | 2153 | vnc_refresh(vd); |
703bc68f SS |
2154 | } |
2155 | } | |
2156 | ||
2157 | static void vnc_remove_timer(VncDisplay *vd) | |
2158 | { | |
2159 | if (vd->timer != NULL && vd->clients == NULL) { | |
2160 | qemu_del_timer(vd->timer); | |
2161 | qemu_free_timer(vd->timer); | |
2162 | vd->timer = NULL; | |
2163 | } | |
2164 | } | |
2165 | ||
753b4053 | 2166 | static void vnc_connect(VncDisplay *vd, int csock) |
3aa3eea3 | 2167 | { |
753b4053 AL |
2168 | VncState *vs = qemu_mallocz(sizeof(VncState)); |
2169 | vs->csock = csock; | |
2170 | ||
2171 | VNC_DEBUG("New client on socket %d\n", csock); | |
7d957bd8 | 2172 | dcl->idle = 0; |
3aa3eea3 AZ |
2173 | socket_set_nonblock(vs->csock); |
2174 | qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs); | |
753b4053 AL |
2175 | |
2176 | vs->vd = vd; | |
2177 | vs->ds = vd->ds; | |
753b4053 AL |
2178 | vs->last_x = -1; |
2179 | vs->last_y = -1; | |
2180 | ||
2181 | vs->as.freq = 44100; | |
2182 | vs->as.nchannels = 2; | |
2183 | vs->as.fmt = AUD_FMT_S16; | |
2184 | vs->as.endianness = 0; | |
2185 | ||
1fc62412 SS |
2186 | vs->next = vd->clients; |
2187 | vd->clients = vs; | |
2188 | ||
2189 | vga_hw_update(); | |
2190 | ||
3aa3eea3 AZ |
2191 | vnc_write(vs, "RFB 003.008\n", 12); |
2192 | vnc_flush(vs); | |
2193 | vnc_read_when(vs, protocol_version, 12); | |
53762ddb | 2194 | reset_keys(vs); |
753b4053 | 2195 | |
703bc68f | 2196 | vnc_init_timer(vd); |
1fc62412 | 2197 | |
198a0039 | 2198 | /* vs might be free()ed here */ |
3aa3eea3 AZ |
2199 | } |
2200 | ||
24236869 FB |
2201 | static void vnc_listen_read(void *opaque) |
2202 | { | |
753b4053 | 2203 | VncDisplay *vs = opaque; |
24236869 FB |
2204 | struct sockaddr_in addr; |
2205 | socklen_t addrlen = sizeof(addr); | |
2206 | ||
9f60ad50 AZ |
2207 | /* Catch-up */ |
2208 | vga_hw_update(); | |
2209 | ||
753b4053 AL |
2210 | int csock = accept(vs->lsock, (struct sockaddr *)&addr, &addrlen); |
2211 | if (csock != -1) { | |
2212 | vnc_connect(vs, csock); | |
24236869 FB |
2213 | } |
2214 | } | |
2215 | ||
71cab5ca | 2216 | void vnc_display_init(DisplayState *ds) |
24236869 | 2217 | { |
afd32160 | 2218 | VncDisplay *vs = qemu_mallocz(sizeof(*vs)); |
24236869 | 2219 | |
7d957bd8 | 2220 | dcl = qemu_mallocz(sizeof(DisplayChangeListener)); |
24236869 FB |
2221 | |
2222 | ds->opaque = vs; | |
7d957bd8 | 2223 | dcl->idle = 1; |
753b4053 | 2224 | vnc_display = vs; |
24236869 FB |
2225 | |
2226 | vs->lsock = -1; | |
24236869 FB |
2227 | |
2228 | vs->ds = ds; | |
2229 | ||
9ca313aa | 2230 | if (keyboard_layout) |
0483755a | 2231 | vs->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout); |
9ca313aa | 2232 | else |
0483755a | 2233 | vs->kbd_layout = init_keyboard_layout(name2keysym, "en-us"); |
24236869 | 2234 | |
24236869 | 2235 | if (!vs->kbd_layout) |
28a76be8 | 2236 | exit(1); |
24236869 | 2237 | |
753b4053 | 2238 | dcl->dpy_copy = vnc_dpy_copy; |
7d957bd8 AL |
2239 | dcl->dpy_update = vnc_dpy_update; |
2240 | dcl->dpy_resize = vnc_dpy_resize; | |
2241 | dcl->dpy_setdata = vnc_dpy_setdata; | |
7d957bd8 | 2242 | register_displaychangelistener(ds, dcl); |
71cab5ca TS |
2243 | } |
2244 | ||
6f43024c | 2245 | |
71cab5ca TS |
2246 | void vnc_display_close(DisplayState *ds) |
2247 | { | |
753b4053 | 2248 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; |
71cab5ca | 2249 | |
452b4d88 AL |
2250 | if (!vs) |
2251 | return; | |
71cab5ca | 2252 | if (vs->display) { |
28a76be8 AL |
2253 | qemu_free(vs->display); |
2254 | vs->display = NULL; | |
71cab5ca TS |
2255 | } |
2256 | if (vs->lsock != -1) { | |
28a76be8 AL |
2257 | qemu_set_fd_handler2(vs->lsock, NULL, NULL, NULL, NULL); |
2258 | close(vs->lsock); | |
2259 | vs->lsock = -1; | |
71cab5ca | 2260 | } |
70848515 | 2261 | vs->auth = VNC_AUTH_INVALID; |
eb38c52c | 2262 | #ifdef CONFIG_VNC_TLS |
8d5d2d4c | 2263 | vs->subauth = VNC_AUTH_INVALID; |
5fb6c7a8 | 2264 | vs->tls.x509verify = 0; |
8d5d2d4c | 2265 | #endif |
70848515 TS |
2266 | } |
2267 | ||
2268 | int vnc_display_password(DisplayState *ds, const char *password) | |
2269 | { | |
753b4053 | 2270 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; |
70848515 | 2271 | |
7ef92331 ZA |
2272 | if (!vs) { |
2273 | return -1; | |
2274 | } | |
2275 | ||
70848515 | 2276 | if (vs->password) { |
28a76be8 AL |
2277 | qemu_free(vs->password); |
2278 | vs->password = NULL; | |
70848515 TS |
2279 | } |
2280 | if (password && password[0]) { | |
28a76be8 AL |
2281 | if (!(vs->password = qemu_strdup(password))) |
2282 | return -1; | |
52c18be9 ZA |
2283 | if (vs->auth == VNC_AUTH_NONE) { |
2284 | vs->auth = VNC_AUTH_VNC; | |
2285 | } | |
2286 | } else { | |
2287 | vs->auth = VNC_AUTH_NONE; | |
70848515 TS |
2288 | } |
2289 | ||
2290 | return 0; | |
71cab5ca TS |
2291 | } |
2292 | ||
f92f8afe AL |
2293 | char *vnc_display_local_addr(DisplayState *ds) |
2294 | { | |
2295 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; | |
2296 | ||
2297 | return vnc_socket_local_addr("%s:%s", vs->lsock); | |
2298 | } | |
2299 | ||
70848515 | 2300 | int vnc_display_open(DisplayState *ds, const char *display) |
71cab5ca | 2301 | { |
753b4053 | 2302 | VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display; |
70848515 TS |
2303 | const char *options; |
2304 | int password = 0; | |
3aa3eea3 | 2305 | int reverse = 0; |
9712ecaf | 2306 | int to_port = 0; |
eb38c52c | 2307 | #ifdef CONFIG_VNC_TLS |
3a702699 | 2308 | int tls = 0, x509 = 0; |
8d5d2d4c | 2309 | #endif |
2f9606b3 AL |
2310 | #ifdef CONFIG_VNC_SASL |
2311 | int sasl = 0; | |
2312 | int saslErr; | |
2313 | #endif | |
76655d6d | 2314 | int acl = 0; |
71cab5ca | 2315 | |
753b4053 | 2316 | if (!vnc_display) |
452b4d88 | 2317 | return -1; |
71cab5ca | 2318 | vnc_display_close(ds); |
70848515 | 2319 | if (strcmp(display, "none") == 0) |
28a76be8 | 2320 | return 0; |
24236869 | 2321 | |
70848515 | 2322 | if (!(vs->display = strdup(display))) |
28a76be8 | 2323 | return -1; |
70848515 TS |
2324 | |
2325 | options = display; | |
2326 | while ((options = strchr(options, ','))) { | |
28a76be8 AL |
2327 | options++; |
2328 | if (strncmp(options, "password", 8) == 0) { | |
2329 | password = 1; /* Require password auth */ | |
2330 | } else if (strncmp(options, "reverse", 7) == 0) { | |
2331 | reverse = 1; | |
2332 | } else if (strncmp(options, "to=", 3) == 0) { | |
9712ecaf | 2333 | to_port = atoi(options+3) + 5900; |
2f9606b3 | 2334 | #ifdef CONFIG_VNC_SASL |
28a76be8 AL |
2335 | } else if (strncmp(options, "sasl", 4) == 0) { |
2336 | sasl = 1; /* Require SASL auth */ | |
2f9606b3 | 2337 | #endif |
eb38c52c | 2338 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2339 | } else if (strncmp(options, "tls", 3) == 0) { |
2340 | tls = 1; /* Require TLS */ | |
2341 | } else if (strncmp(options, "x509", 4) == 0) { | |
2342 | char *start, *end; | |
2343 | x509 = 1; /* Require x509 certificates */ | |
2344 | if (strncmp(options, "x509verify", 10) == 0) | |
2345 | vs->tls.x509verify = 1; /* ...and verify client certs */ | |
2346 | ||
2347 | /* Now check for 'x509=/some/path' postfix | |
2348 | * and use that to setup x509 certificate/key paths */ | |
2349 | start = strchr(options, '='); | |
2350 | end = strchr(options, ','); | |
2351 | if (start && (!end || (start < end))) { | |
2352 | int len = end ? end-(start+1) : strlen(start+1); | |
2353 | char *path = qemu_strndup(start + 1, len); | |
2354 | ||
2355 | VNC_DEBUG("Trying certificate path '%s'\n", path); | |
2356 | if (vnc_tls_set_x509_creds_dir(vs, path) < 0) { | |
2357 | fprintf(stderr, "Failed to find x509 certificates/keys in %s\n", path); | |
2358 | qemu_free(path); | |
2359 | qemu_free(vs->display); | |
2360 | vs->display = NULL; | |
2361 | return -1; | |
2362 | } | |
2363 | qemu_free(path); | |
2364 | } else { | |
2365 | fprintf(stderr, "No certificate path provided\n"); | |
2366 | qemu_free(vs->display); | |
2367 | vs->display = NULL; | |
2368 | return -1; | |
2369 | } | |
8d5d2d4c | 2370 | #endif |
28a76be8 AL |
2371 | } else if (strncmp(options, "acl", 3) == 0) { |
2372 | acl = 1; | |
2373 | } | |
70848515 TS |
2374 | } |
2375 | ||
76655d6d AL |
2376 | #ifdef CONFIG_VNC_TLS |
2377 | if (acl && x509 && vs->tls.x509verify) { | |
28a76be8 AL |
2378 | if (!(vs->tls.acl = qemu_acl_init("vnc.x509dname"))) { |
2379 | fprintf(stderr, "Failed to create x509 dname ACL\n"); | |
2380 | exit(1); | |
2381 | } | |
76655d6d AL |
2382 | } |
2383 | #endif | |
2384 | #ifdef CONFIG_VNC_SASL | |
2385 | if (acl && sasl) { | |
28a76be8 AL |
2386 | if (!(vs->sasl.acl = qemu_acl_init("vnc.username"))) { |
2387 | fprintf(stderr, "Failed to create username ACL\n"); | |
2388 | exit(1); | |
2389 | } | |
76655d6d AL |
2390 | } |
2391 | #endif | |
2392 | ||
2f9606b3 AL |
2393 | /* |
2394 | * Combinations we support here: | |
2395 | * | |
2396 | * - no-auth (clear text, no auth) | |
2397 | * - password (clear text, weak auth) | |
2398 | * - sasl (encrypt, good auth *IF* using Kerberos via GSSAPI) | |
2399 | * - tls (encrypt, weak anonymous creds, no auth) | |
2400 | * - tls + password (encrypt, weak anonymous creds, weak auth) | |
2401 | * - tls + sasl (encrypt, weak anonymous creds, good auth) | |
2402 | * - tls + x509 (encrypt, good x509 creds, no auth) | |
2403 | * - tls + x509 + password (encrypt, good x509 creds, weak auth) | |
2404 | * - tls + x509 + sasl (encrypt, good x509 creds, good auth) | |
2405 | * | |
2406 | * NB1. TLS is a stackable auth scheme. | |
2407 | * NB2. the x509 schemes have option to validate a client cert dname | |
2408 | */ | |
70848515 | 2409 | if (password) { |
eb38c52c | 2410 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2411 | if (tls) { |
2412 | vs->auth = VNC_AUTH_VENCRYPT; | |
2413 | if (x509) { | |
2414 | VNC_DEBUG("Initializing VNC server with x509 password auth\n"); | |
2415 | vs->subauth = VNC_AUTH_VENCRYPT_X509VNC; | |
2416 | } else { | |
2417 | VNC_DEBUG("Initializing VNC server with TLS password auth\n"); | |
2418 | vs->subauth = VNC_AUTH_VENCRYPT_TLSVNC; | |
2419 | } | |
2420 | } else { | |
2f9606b3 | 2421 | #endif /* CONFIG_VNC_TLS */ |
28a76be8 AL |
2422 | VNC_DEBUG("Initializing VNC server with password auth\n"); |
2423 | vs->auth = VNC_AUTH_VNC; | |
eb38c52c | 2424 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2425 | vs->subauth = VNC_AUTH_INVALID; |
2426 | } | |
2f9606b3 AL |
2427 | #endif /* CONFIG_VNC_TLS */ |
2428 | #ifdef CONFIG_VNC_SASL | |
2429 | } else if (sasl) { | |
2430 | #ifdef CONFIG_VNC_TLS | |
2431 | if (tls) { | |
2432 | vs->auth = VNC_AUTH_VENCRYPT; | |
2433 | if (x509) { | |
28a76be8 | 2434 | VNC_DEBUG("Initializing VNC server with x509 SASL auth\n"); |
2f9606b3 AL |
2435 | vs->subauth = VNC_AUTH_VENCRYPT_X509SASL; |
2436 | } else { | |
28a76be8 | 2437 | VNC_DEBUG("Initializing VNC server with TLS SASL auth\n"); |
2f9606b3 AL |
2438 | vs->subauth = VNC_AUTH_VENCRYPT_TLSSASL; |
2439 | } | |
2440 | } else { | |
2441 | #endif /* CONFIG_VNC_TLS */ | |
28a76be8 | 2442 | VNC_DEBUG("Initializing VNC server with SASL auth\n"); |
2f9606b3 AL |
2443 | vs->auth = VNC_AUTH_SASL; |
2444 | #ifdef CONFIG_VNC_TLS | |
2445 | vs->subauth = VNC_AUTH_INVALID; | |
2446 | } | |
2447 | #endif /* CONFIG_VNC_TLS */ | |
2448 | #endif /* CONFIG_VNC_SASL */ | |
70848515 | 2449 | } else { |
eb38c52c | 2450 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2451 | if (tls) { |
2452 | vs->auth = VNC_AUTH_VENCRYPT; | |
2453 | if (x509) { | |
2454 | VNC_DEBUG("Initializing VNC server with x509 no auth\n"); | |
2455 | vs->subauth = VNC_AUTH_VENCRYPT_X509NONE; | |
2456 | } else { | |
2457 | VNC_DEBUG("Initializing VNC server with TLS no auth\n"); | |
2458 | vs->subauth = VNC_AUTH_VENCRYPT_TLSNONE; | |
2459 | } | |
2460 | } else { | |
8d5d2d4c | 2461 | #endif |
28a76be8 AL |
2462 | VNC_DEBUG("Initializing VNC server with no auth\n"); |
2463 | vs->auth = VNC_AUTH_NONE; | |
eb38c52c | 2464 | #ifdef CONFIG_VNC_TLS |
28a76be8 AL |
2465 | vs->subauth = VNC_AUTH_INVALID; |
2466 | } | |
8d5d2d4c | 2467 | #endif |
70848515 | 2468 | } |
24236869 | 2469 | |
2f9606b3 AL |
2470 | #ifdef CONFIG_VNC_SASL |
2471 | if ((saslErr = sasl_server_init(NULL, "qemu")) != SASL_OK) { | |
2472 | fprintf(stderr, "Failed to initialize SASL auth %s", | |
2473 | sasl_errstring(saslErr, NULL, NULL)); | |
2474 | free(vs->display); | |
2475 | vs->display = NULL; | |
2476 | return -1; | |
2477 | } | |
2478 | #endif | |
2479 | ||
3aa3eea3 | 2480 | if (reverse) { |
9712ecaf AL |
2481 | /* connect to viewer */ |
2482 | if (strncmp(display, "unix:", 5) == 0) | |
2483 | vs->lsock = unix_connect(display+5); | |
2484 | else | |
2485 | vs->lsock = inet_connect(display, SOCK_STREAM); | |
2486 | if (-1 == vs->lsock) { | |
3aa3eea3 AZ |
2487 | free(vs->display); |
2488 | vs->display = NULL; | |
2489 | return -1; | |
2490 | } else { | |
753b4053 | 2491 | int csock = vs->lsock; |
3aa3eea3 | 2492 | vs->lsock = -1; |
753b4053 | 2493 | vnc_connect(vs, csock); |
3aa3eea3 | 2494 | } |
9712ecaf | 2495 | return 0; |
24236869 | 2496 | |
9712ecaf AL |
2497 | } else { |
2498 | /* listen for connects */ | |
2499 | char *dpy; | |
2500 | dpy = qemu_malloc(256); | |
2501 | if (strncmp(display, "unix:", 5) == 0) { | |
bc575e95 | 2502 | pstrcpy(dpy, 256, "unix:"); |
4a55bfdf | 2503 | vs->lsock = unix_listen(display+5, dpy+5, 256-5); |
9712ecaf AL |
2504 | } else { |
2505 | vs->lsock = inet_listen(display, dpy, 256, SOCK_STREAM, 5900); | |
2506 | } | |
2507 | if (-1 == vs->lsock) { | |
2508 | free(dpy); | |
d0513623 | 2509 | return -1; |
9712ecaf AL |
2510 | } else { |
2511 | free(vs->display); | |
2512 | vs->display = dpy; | |
2513 | } | |
24236869 | 2514 | } |
753b4053 | 2515 | return qemu_set_fd_handler2(vs->lsock, NULL, vnc_listen_read, NULL, vs); |
24236869 | 2516 | } |