2 * QEMU VNC display driver
4 * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
5 * Copyright (C) 2006 Fabrice Bellard
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 #include "qemu_socket.h"
29 #define VNC_REFRESH_INTERVAL (1000 / 30)
31 #include "vnc_keysym.h"
36 #include <gnutls/gnutls.h>
37 #include <gnutls/x509.h>
38 #endif /* CONFIG_VNC_TLS */
40 // #define _VNC_DEBUG 1
43 #define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
45 #if CONFIG_VNC_TLS && _VNC_DEBUG >= 2
46 /* Very verbose, so only enabled for _VNC_DEBUG >= 2 */
47 static void vnc_debug_gnutls_log(int level, const char* str) {
48 VNC_DEBUG("%d %s", level, str);
50 #endif /* CONFIG_VNC_TLS && _VNC_DEBUG */
52 #define VNC_DEBUG(fmt, ...) do { } while (0)
63 typedef struct VncState VncState;
65 typedef int VncReadEvent(VncState *vs, char *data, size_t len);
67 typedef void VncWritePixels(VncState *vs, void *data, int size);
69 typedef void VncSendHextileTile(VncState *vs,
70 int x, int y, int w, int h,
73 int *has_bg, int *has_fg);
75 #define VNC_MAX_WIDTH 2048
76 #define VNC_MAX_HEIGHT 2048
77 #define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * 32))
79 #define VNC_AUTH_CHALLENGE_SIZE 16
90 VNC_AUTH_VENCRYPT = 19
100 VNC_AUTH_VENCRYPT_PLAIN = 256,
101 VNC_AUTH_VENCRYPT_TLSNONE = 257,
102 VNC_AUTH_VENCRYPT_TLSVNC = 258,
103 VNC_AUTH_VENCRYPT_TLSPLAIN = 259,
104 VNC_AUTH_VENCRYPT_X509NONE = 260,
105 VNC_AUTH_VENCRYPT_X509VNC = 261,
106 VNC_AUTH_VENCRYPT_X509PLAIN = 262,
108 #endif /* CONFIG_VNC_TLS */
119 uint32_t dirty_row[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS];
121 int depth; /* internal VNC frame buffer byte per pixel */
124 int has_pointer_type_change;
138 char challenge[VNC_AUTH_CHALLENGE_SIZE];
142 gnutls_session_t tls_session;
147 kbd_layout_t *kbd_layout;
148 /* current output mode information */
149 VncWritePixels *write_pixels;
150 VncSendHextileTile *send_hextile_tile;
151 int pix_bpp, pix_big_endian;
152 int red_shift, red_max, red_shift1;
153 int green_shift, green_max, green_shift1;
154 int blue_shift, blue_max, blue_shift1;
156 VncReadEvent *read_handler;
157 size_t read_handler_expect;
159 uint8_t modifiers_state[256];
162 static VncState *vnc_state; /* needed for info vnc */
164 void do_info_vnc(void)
166 if (vnc_state == NULL)
167 term_printf("VNC server disabled\n");
169 term_printf("VNC server active on: ");
170 term_print_filename(vnc_state->display);
173 if (vnc_state->csock == -1)
174 term_printf("No client connected\n");
176 term_printf("Client connected\n");
181 1) Get the queue working for IO.
182 2) there is some weirdness when using the -S option (the screen is grey
183 and not totally invalidated
184 3) resolutions > 1024
187 static void vnc_write(VncState *vs, const void *data, size_t len);
188 static void vnc_write_u32(VncState *vs, uint32_t value);
189 static void vnc_write_s32(VncState *vs, int32_t value);
190 static void vnc_write_u16(VncState *vs, uint16_t value);
191 static void vnc_write_u8(VncState *vs, uint8_t value);
192 static void vnc_flush(VncState *vs);
193 static void vnc_update_client(void *opaque);
194 static void vnc_client_read(void *opaque);
196 static inline void vnc_set_bit(uint32_t *d, int k)
198 d[k >> 5] |= 1 << (k & 0x1f);
201 static inline void vnc_clear_bit(uint32_t *d, int k)
203 d[k >> 5] &= ~(1 << (k & 0x1f));
206 static inline void vnc_set_bits(uint32_t *d, int n, int nb_words)
216 d[j++] = (1 << n) - 1;
221 static inline int vnc_get_bit(const uint32_t *d, int k)
223 return (d[k >> 5] >> (k & 0x1f)) & 1;
226 static inline int vnc_and_bits(const uint32_t *d1, const uint32_t *d2,
230 for(i = 0; i < nb_words; i++) {
231 if ((d1[i] & d2[i]) != 0)
237 static void vnc_dpy_update(DisplayState *ds, int x, int y, int w, int h)
239 VncState *vs = ds->opaque;
245 for (i = 0; i < w; i += 16)
246 vnc_set_bit(vs->dirty_row[y], (x + i) / 16);
249 static void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
252 vnc_write_u16(vs, x);
253 vnc_write_u16(vs, y);
254 vnc_write_u16(vs, w);
255 vnc_write_u16(vs, h);
257 vnc_write_s32(vs, encoding);
260 static void vnc_dpy_resize(DisplayState *ds, int w, int h)
263 VncState *vs = ds->opaque;
265 ds->data = realloc(ds->data, w * h * vs->depth);
266 vs->old_data = realloc(vs->old_data, w * h * vs->depth);
268 if (ds->data == NULL || vs->old_data == NULL) {
269 fprintf(stderr, "vnc: memory allocation failed\n");
273 ds->depth = vs->depth * 8;
274 size_changed = ds->width != w || ds->height != h;
277 ds->linesize = w * vs->depth;
278 if (vs->csock != -1 && vs->has_resize && size_changed) {
279 vnc_write_u8(vs, 0); /* msg id */
281 vnc_write_u16(vs, 1); /* number of rects */
282 vnc_framebuffer_update(vs, 0, 0, ds->width, ds->height, -223);
284 vs->width = ds->width;
285 vs->height = ds->height;
290 static void vnc_write_pixels_copy(VncState *vs, void *pixels, int size)
292 vnc_write(vs, pixels, size);
295 /* slowest but generic code. */
296 static void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v)
298 unsigned int r, g, b;
300 r = (v >> vs->red_shift1) & vs->red_max;
301 g = (v >> vs->green_shift1) & vs->green_max;
302 b = (v >> vs->blue_shift1) & vs->blue_max;
303 v = (r << vs->red_shift) |
304 (g << vs->green_shift) |
305 (b << vs->blue_shift);
306 switch(vs->pix_bpp) {
311 if (vs->pix_big_endian) {
321 if (vs->pix_big_endian) {
336 static void vnc_write_pixels_generic(VncState *vs, void *pixels1, int size)
338 uint32_t *pixels = pixels1;
343 for(i = 0; i < n; i++) {
344 vnc_convert_pixel(vs, buf, pixels[i]);
345 vnc_write(vs, buf, vs->pix_bpp);
349 static void send_framebuffer_update_raw(VncState *vs, int x, int y, int w, int h)
354 vnc_framebuffer_update(vs, x, y, w, h, 0);
356 row = vs->ds->data + y * vs->ds->linesize + x * vs->depth;
357 for (i = 0; i < h; i++) {
358 vs->write_pixels(vs, row, w * vs->depth);
359 row += vs->ds->linesize;
363 static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h)
365 ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F);
366 ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F);
370 #include "vnchextile.h"
374 #include "vnchextile.h"
378 #include "vnchextile.h"
383 #include "vnchextile.h"
387 static void send_framebuffer_update_hextile(VncState *vs, int x, int y, int w, int h)
391 uint32_t last_fg32, last_bg32;
393 vnc_framebuffer_update(vs, x, y, w, h, 5);
396 for (j = y; j < (y + h); j += 16) {
397 for (i = x; i < (x + w); i += 16) {
398 vs->send_hextile_tile(vs, i, j,
399 MIN(16, x + w - i), MIN(16, y + h - j),
400 &last_bg32, &last_fg32, &has_bg, &has_fg);
405 static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
408 send_framebuffer_update_hextile(vs, x, y, w, h);
410 send_framebuffer_update_raw(vs, x, y, w, h);
413 static void vnc_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
420 int pitch = ds->linesize;
421 VncState *vs = ds->opaque;
423 vnc_update_client(vs);
430 src = (ds->linesize * (src_y + y) + vs->depth * src_x);
431 dst = (ds->linesize * (dst_y + y) + vs->depth * dst_x);
433 src_row = ds->data + src;
434 dst_row = ds->data + dst;
435 old_row = vs->old_data + dst;
437 for (y = 0; y < h; y++) {
438 memmove(old_row, src_row, w * vs->depth);
439 memmove(dst_row, src_row, w * vs->depth);
445 vnc_write_u8(vs, 0); /* msg id */
447 vnc_write_u16(vs, 1); /* number of rects */
448 vnc_framebuffer_update(vs, dst_x, dst_y, w, h, 1);
449 vnc_write_u16(vs, src_x);
450 vnc_write_u16(vs, src_y);
454 static int find_dirty_height(VncState *vs, int y, int last_x, int x)
458 for (h = 1; h < (vs->height - y); h++) {
460 if (!vnc_get_bit(vs->dirty_row[y + h], last_x))
462 for (tmp_x = last_x; tmp_x < x; tmp_x++)
463 vnc_clear_bit(vs->dirty_row[y + h], tmp_x);
469 static void vnc_update_client(void *opaque)
471 VncState *vs = opaque;
473 if (vs->need_update && vs->csock != -1) {
477 uint32_t width_mask[VNC_DIRTY_WORDS];
482 vnc_set_bits(width_mask, (vs->width / 16), VNC_DIRTY_WORDS);
484 /* Walk through the dirty map and eliminate tiles that
485 really aren't dirty */
487 old_row = vs->old_data;
489 for (y = 0; y < vs->height; y++) {
490 if (vnc_and_bits(vs->dirty_row[y], width_mask, VNC_DIRTY_WORDS)) {
497 for (x = 0; x < vs->ds->width; x += 16) {
498 if (memcmp(old_ptr, ptr, 16 * vs->depth) == 0) {
499 vnc_clear_bit(vs->dirty_row[y], (x / 16));
502 memcpy(old_ptr, ptr, 16 * vs->depth);
505 ptr += 16 * vs->depth;
506 old_ptr += 16 * vs->depth;
510 row += vs->ds->linesize;
511 old_row += vs->ds->linesize;
515 qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
519 /* Count rectangles */
521 vnc_write_u8(vs, 0); /* msg id */
523 saved_offset = vs->output.offset;
524 vnc_write_u16(vs, 0);
526 for (y = 0; y < vs->height; y++) {
529 for (x = 0; x < vs->width / 16; x++) {
530 if (vnc_get_bit(vs->dirty_row[y], x)) {
534 vnc_clear_bit(vs->dirty_row[y], x);
537 int h = find_dirty_height(vs, y, last_x, x);
538 send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h);
545 int h = find_dirty_height(vs, y, last_x, x);
546 send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h);
550 vs->output.buffer[saved_offset] = (n_rectangles >> 8) & 0xFF;
551 vs->output.buffer[saved_offset + 1] = n_rectangles & 0xFF;
555 qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
558 static void vnc_timer_init(VncState *vs)
560 if (vs->timer == NULL) {
561 vs->timer = qemu_new_timer(rt_clock, vnc_update_client, vs);
562 qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock));
566 static void vnc_dpy_refresh(DisplayState *ds)
568 VncState *vs = ds->opaque;
573 static int vnc_listen_poll(void *opaque)
575 VncState *vs = opaque;
581 static void buffer_reserve(Buffer *buffer, size_t len)
583 if ((buffer->capacity - buffer->offset) < len) {
584 buffer->capacity += (len + 1024);
585 buffer->buffer = realloc(buffer->buffer, buffer->capacity);
586 if (buffer->buffer == NULL) {
587 fprintf(stderr, "vnc: out of memory\n");
593 static int buffer_empty(Buffer *buffer)
595 return buffer->offset == 0;
598 static char *buffer_end(Buffer *buffer)
600 return buffer->buffer + buffer->offset;
603 static void buffer_reset(Buffer *buffer)
608 static void buffer_append(Buffer *buffer, const void *data, size_t len)
610 memcpy(buffer->buffer + buffer->offset, data, len);
611 buffer->offset += len;
614 static int vnc_client_io_error(VncState *vs, int ret, int last_errno)
616 if (ret == 0 || ret == -1) {
617 if (ret == -1 && (last_errno == EINTR || last_errno == EAGAIN))
620 VNC_DEBUG("Closing down client sock %d %d\n", ret, ret < 0 ? last_errno : 0);
621 qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
622 closesocket(vs->csock);
624 buffer_reset(&vs->input);
625 buffer_reset(&vs->output);
628 if (vs->tls_session) {
629 gnutls_deinit(vs->tls_session);
630 vs->tls_session = NULL;
632 vs->wiremode = VNC_WIREMODE_CLEAR;
633 #endif /* CONFIG_VNC_TLS */
639 static void vnc_client_error(VncState *vs)
641 vnc_client_io_error(vs, -1, EINVAL);
644 static void vnc_client_write(void *opaque)
647 VncState *vs = opaque;
650 if (vs->tls_session) {
651 ret = gnutls_write(vs->tls_session, vs->output.buffer, vs->output.offset);
653 if (ret == GNUTLS_E_AGAIN)
660 #endif /* CONFIG_VNC_TLS */
661 ret = send(vs->csock, vs->output.buffer, vs->output.offset, 0);
662 ret = vnc_client_io_error(vs, ret, socket_error());
666 memmove(vs->output.buffer, vs->output.buffer + ret, (vs->output.offset - ret));
667 vs->output.offset -= ret;
669 if (vs->output.offset == 0) {
670 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
674 static void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting)
676 vs->read_handler = func;
677 vs->read_handler_expect = expecting;
680 static void vnc_client_read(void *opaque)
682 VncState *vs = opaque;
685 buffer_reserve(&vs->input, 4096);
688 if (vs->tls_session) {
689 ret = gnutls_read(vs->tls_session, buffer_end(&vs->input), 4096);
691 if (ret == GNUTLS_E_AGAIN)
698 #endif /* CONFIG_VNC_TLS */
699 ret = recv(vs->csock, buffer_end(&vs->input), 4096, 0);
700 ret = vnc_client_io_error(vs, ret, socket_error());
704 vs->input.offset += ret;
706 while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
707 size_t len = vs->read_handler_expect;
710 ret = vs->read_handler(vs, vs->input.buffer, len);
715 memmove(vs->input.buffer, vs->input.buffer + len, (vs->input.offset - len));
716 vs->input.offset -= len;
718 vs->read_handler_expect = ret;
723 static void vnc_write(VncState *vs, const void *data, size_t len)
725 buffer_reserve(&vs->output, len);
727 if (buffer_empty(&vs->output)) {
728 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
731 buffer_append(&vs->output, data, len);
734 static void vnc_write_s32(VncState *vs, int32_t value)
736 vnc_write_u32(vs, *(uint32_t *)&value);
739 static void vnc_write_u32(VncState *vs, uint32_t value)
743 buf[0] = (value >> 24) & 0xFF;
744 buf[1] = (value >> 16) & 0xFF;
745 buf[2] = (value >> 8) & 0xFF;
746 buf[3] = value & 0xFF;
748 vnc_write(vs, buf, 4);
751 static void vnc_write_u16(VncState *vs, uint16_t value)
755 buf[0] = (value >> 8) & 0xFF;
756 buf[1] = value & 0xFF;
758 vnc_write(vs, buf, 2);
761 static void vnc_write_u8(VncState *vs, uint8_t value)
763 vnc_write(vs, (char *)&value, 1);
766 static void vnc_flush(VncState *vs)
768 if (vs->output.offset)
769 vnc_client_write(vs);
772 static uint8_t read_u8(uint8_t *data, size_t offset)
777 static uint16_t read_u16(uint8_t *data, size_t offset)
779 return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF);
782 static int32_t read_s32(uint8_t *data, size_t offset)
784 return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) |
785 (data[offset + 2] << 8) | data[offset + 3]);
788 static uint32_t read_u32(uint8_t *data, size_t offset)
790 return ((data[offset] << 24) | (data[offset + 1] << 16) |
791 (data[offset + 2] << 8) | data[offset + 3]);
795 ssize_t vnc_tls_push(gnutls_transport_ptr_t transport,
798 struct VncState *vs = (struct VncState *)transport;
802 ret = send(vs->csock, data, len, 0);
812 ssize_t vnc_tls_pull(gnutls_transport_ptr_t transport,
815 struct VncState *vs = (struct VncState *)transport;
819 ret = recv(vs->csock, data, len, 0);
827 #endif /* CONFIG_VNC_TLS */
829 static void client_cut_text(VncState *vs, size_t len, char *text)
833 static void check_pointer_type_change(VncState *vs, int absolute)
835 if (vs->has_pointer_type_change && vs->absolute != absolute) {
838 vnc_write_u16(vs, 1);
839 vnc_framebuffer_update(vs, absolute, 0,
840 vs->ds->width, vs->ds->height, -257);
843 vs->absolute = absolute;
846 static void pointer_event(VncState *vs, int button_mask, int x, int y)
851 if (button_mask & 0x01)
852 buttons |= MOUSE_EVENT_LBUTTON;
853 if (button_mask & 0x02)
854 buttons |= MOUSE_EVENT_MBUTTON;
855 if (button_mask & 0x04)
856 buttons |= MOUSE_EVENT_RBUTTON;
857 if (button_mask & 0x08)
859 if (button_mask & 0x10)
863 kbd_mouse_event(x * 0x7FFF / vs->ds->width,
864 y * 0x7FFF / vs->ds->height,
866 } else if (vs->has_pointer_type_change) {
870 kbd_mouse_event(x, y, dz, buttons);
872 if (vs->last_x != -1)
873 kbd_mouse_event(x - vs->last_x,
880 check_pointer_type_change(vs, kbd_mouse_is_absolute());
883 static void reset_keys(VncState *vs)
886 for(i = 0; i < 256; i++) {
887 if (vs->modifiers_state[i]) {
889 kbd_put_keycode(0xe0);
890 kbd_put_keycode(i | 0x80);
891 vs->modifiers_state[i] = 0;
896 static void do_key_event(VncState *vs, int down, uint32_t sym)
900 keycode = keysym2scancode(vs->kbd_layout, sym & 0xFFFF);
902 /* QEMU console switch */
904 case 0x2a: /* Left Shift */
905 case 0x36: /* Right Shift */
906 case 0x1d: /* Left CTRL */
907 case 0x9d: /* Right CTRL */
908 case 0x38: /* Left ALT */
909 case 0xb8: /* Right ALT */
911 vs->modifiers_state[keycode] = 1;
913 vs->modifiers_state[keycode] = 0;
915 case 0x02 ... 0x0a: /* '1' to '9' keys */
916 if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
917 /* Reset the modifiers sent to the current console */
919 console_select(keycode - 0x02);
925 if (is_graphic_console()) {
927 kbd_put_keycode(0xe0);
929 kbd_put_keycode(keycode & 0x7f);
931 kbd_put_keycode(keycode | 0x80);
933 /* QEMU console emulation */
936 case 0x2a: /* Left Shift */
937 case 0x36: /* Right Shift */
938 case 0x1d: /* Left CTRL */
939 case 0x9d: /* Right CTRL */
940 case 0x38: /* Left ALT */
941 case 0xb8: /* Right ALT */
944 kbd_put_keysym(QEMU_KEY_UP);
947 kbd_put_keysym(QEMU_KEY_DOWN);
950 kbd_put_keysym(QEMU_KEY_LEFT);
953 kbd_put_keysym(QEMU_KEY_RIGHT);
956 kbd_put_keysym(QEMU_KEY_DELETE);
959 kbd_put_keysym(QEMU_KEY_HOME);
962 kbd_put_keysym(QEMU_KEY_END);
965 kbd_put_keysym(QEMU_KEY_PAGEUP);
968 kbd_put_keysym(QEMU_KEY_PAGEDOWN);
978 static void key_event(VncState *vs, int down, uint32_t sym)
980 if (sym >= 'A' && sym <= 'Z')
981 sym = sym - 'A' + 'a';
982 do_key_event(vs, down, sym);
985 static void framebuffer_update_request(VncState *vs, int incremental,
986 int x_position, int y_position,
989 if (x_position > vs->ds->width)
990 x_position = vs->ds->width;
991 if (y_position > vs->ds->height)
992 y_position = vs->ds->height;
993 if (x_position + w >= vs->ds->width)
994 w = vs->ds->width - x_position;
995 if (y_position + h >= vs->ds->height)
996 h = vs->ds->height - y_position;
1001 char *old_row = vs->old_data + y_position * vs->ds->linesize;
1003 for (i = 0; i < h; i++) {
1004 vnc_set_bits(vs->dirty_row[y_position + i],
1005 (vs->ds->width / 16), VNC_DIRTY_WORDS);
1006 memset(old_row, 42, vs->ds->width * vs->depth);
1007 old_row += vs->ds->linesize;
1012 static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
1016 vs->has_hextile = 0;
1018 vs->has_pointer_type_change = 0;
1020 vs->ds->dpy_copy = NULL;
1022 for (i = n_encodings - 1; i >= 0; i--) {
1023 switch (encodings[i]) {
1025 vs->has_hextile = 0;
1027 case 1: /* CopyRect */
1028 vs->ds->dpy_copy = vnc_copy;
1030 case 5: /* Hextile */
1031 vs->has_hextile = 1;
1033 case -223: /* DesktopResize */
1037 vs->has_pointer_type_change = 1;
1044 check_pointer_type_change(vs, kbd_mouse_is_absolute());
1047 static int compute_nbits(unsigned int val)
1058 static void set_pixel_format(VncState *vs,
1059 int bits_per_pixel, int depth,
1060 int big_endian_flag, int true_color_flag,
1061 int red_max, int green_max, int blue_max,
1062 int red_shift, int green_shift, int blue_shift)
1064 int host_big_endian_flag;
1066 #ifdef WORDS_BIGENDIAN
1067 host_big_endian_flag = 1;
1069 host_big_endian_flag = 0;
1071 if (!true_color_flag) {
1073 vnc_client_error(vs);
1076 if (bits_per_pixel == 32 &&
1077 host_big_endian_flag == big_endian_flag &&
1078 red_max == 0xff && green_max == 0xff && blue_max == 0xff &&
1079 red_shift == 16 && green_shift == 8 && blue_shift == 0) {
1081 vs->write_pixels = vnc_write_pixels_copy;
1082 vs->send_hextile_tile = send_hextile_tile_32;
1084 if (bits_per_pixel == 16 &&
1085 host_big_endian_flag == big_endian_flag &&
1086 red_max == 31 && green_max == 63 && blue_max == 31 &&
1087 red_shift == 11 && green_shift == 5 && blue_shift == 0) {
1089 vs->write_pixels = vnc_write_pixels_copy;
1090 vs->send_hextile_tile = send_hextile_tile_16;
1092 if (bits_per_pixel == 8 &&
1093 red_max == 7 && green_max == 7 && blue_max == 3 &&
1094 red_shift == 5 && green_shift == 2 && blue_shift == 0) {
1096 vs->write_pixels = vnc_write_pixels_copy;
1097 vs->send_hextile_tile = send_hextile_tile_8;
1100 /* generic and slower case */
1101 if (bits_per_pixel != 8 &&
1102 bits_per_pixel != 16 &&
1103 bits_per_pixel != 32)
1106 vs->red_shift = red_shift;
1107 vs->red_max = red_max;
1108 vs->red_shift1 = 24 - compute_nbits(red_max);
1109 vs->green_shift = green_shift;
1110 vs->green_max = green_max;
1111 vs->green_shift1 = 16 - compute_nbits(green_max);
1112 vs->blue_shift = blue_shift;
1113 vs->blue_max = blue_max;
1114 vs->blue_shift1 = 8 - compute_nbits(blue_max);
1115 vs->pix_bpp = bits_per_pixel / 8;
1116 vs->pix_big_endian = big_endian_flag;
1117 vs->write_pixels = vnc_write_pixels_generic;
1118 vs->send_hextile_tile = send_hextile_tile_generic;
1121 vnc_dpy_resize(vs->ds, vs->ds->width, vs->ds->height);
1122 memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
1123 memset(vs->old_data, 42, vs->ds->linesize * vs->ds->height);
1125 vga_hw_invalidate();
1129 static int protocol_client_msg(VncState *vs, char *data, size_t len)
1139 set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5),
1140 read_u8(data, 6), read_u8(data, 7),
1141 read_u16(data, 8), read_u16(data, 10),
1142 read_u16(data, 12), read_u8(data, 14),
1143 read_u8(data, 15), read_u8(data, 16));
1150 return 4 + (read_u16(data, 2) * 4);
1152 limit = read_u16(data, 2);
1153 for (i = 0; i < limit; i++) {
1154 int32_t val = read_s32(data, 4 + (i * 4));
1155 memcpy(data + 4 + (i * 4), &val, sizeof(val));
1158 set_encodings(vs, (int32_t *)(data + 4), limit);
1164 framebuffer_update_request(vs,
1165 read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
1166 read_u16(data, 6), read_u16(data, 8));
1172 key_event(vs, read_u8(data, 1), read_u32(data, 4));
1178 pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
1185 return 8 + read_u32(data, 4);
1187 client_cut_text(vs, read_u32(data, 4), data + 8);
1190 printf("Msg: %d\n", data[0]);
1191 vnc_client_error(vs);
1195 vnc_read_when(vs, protocol_client_msg, 1);
1199 static int protocol_client_init(VncState *vs, char *data, size_t len)
1201 char pad[3] = { 0, 0, 0 };
1205 vs->width = vs->ds->width;
1206 vs->height = vs->ds->height;
1207 vnc_write_u16(vs, vs->ds->width);
1208 vnc_write_u16(vs, vs->ds->height);
1210 vnc_write_u8(vs, vs->depth * 8); /* bits-per-pixel */
1211 vnc_write_u8(vs, vs->depth * 8); /* depth */
1212 #ifdef WORDS_BIGENDIAN
1213 vnc_write_u8(vs, 1); /* big-endian-flag */
1215 vnc_write_u8(vs, 0); /* big-endian-flag */
1217 vnc_write_u8(vs, 1); /* true-color-flag */
1218 if (vs->depth == 4) {
1219 vnc_write_u16(vs, 0xFF); /* red-max */
1220 vnc_write_u16(vs, 0xFF); /* green-max */
1221 vnc_write_u16(vs, 0xFF); /* blue-max */
1222 vnc_write_u8(vs, 16); /* red-shift */
1223 vnc_write_u8(vs, 8); /* green-shift */
1224 vnc_write_u8(vs, 0); /* blue-shift */
1225 vs->send_hextile_tile = send_hextile_tile_32;
1226 } else if (vs->depth == 2) {
1227 vnc_write_u16(vs, 31); /* red-max */
1228 vnc_write_u16(vs, 63); /* green-max */
1229 vnc_write_u16(vs, 31); /* blue-max */
1230 vnc_write_u8(vs, 11); /* red-shift */
1231 vnc_write_u8(vs, 5); /* green-shift */
1232 vnc_write_u8(vs, 0); /* blue-shift */
1233 vs->send_hextile_tile = send_hextile_tile_16;
1234 } else if (vs->depth == 1) {
1235 /* XXX: change QEMU pixel 8 bit pixel format to match the VNC one ? */
1236 vnc_write_u16(vs, 7); /* red-max */
1237 vnc_write_u16(vs, 7); /* green-max */
1238 vnc_write_u16(vs, 3); /* blue-max */
1239 vnc_write_u8(vs, 5); /* red-shift */
1240 vnc_write_u8(vs, 2); /* green-shift */
1241 vnc_write_u8(vs, 0); /* blue-shift */
1242 vs->send_hextile_tile = send_hextile_tile_8;
1244 vs->write_pixels = vnc_write_pixels_copy;
1246 vnc_write(vs, pad, 3); /* padding */
1249 size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name);
1251 size = snprintf(buf, sizeof(buf), "QEMU");
1253 vnc_write_u32(vs, size);
1254 vnc_write(vs, buf, size);
1257 vnc_read_when(vs, protocol_client_msg, 1);
1262 static void make_challenge(VncState *vs)
1266 srand(time(NULL)+getpid()+getpid()*987654+rand());
1268 for (i = 0 ; i < sizeof(vs->challenge) ; i++)
1269 vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0));
1272 static int protocol_client_auth_vnc(VncState *vs, char *data, size_t len)
1274 char response[VNC_AUTH_CHALLENGE_SIZE];
1278 if (!vs->password || !vs->password[0]) {
1279 VNC_DEBUG("No password configured on server");
1280 vnc_write_u32(vs, 1); /* Reject auth */
1281 if (vs->minor >= 8) {
1282 static const char err[] = "Authentication failed";
1283 vnc_write_u32(vs, sizeof(err));
1284 vnc_write(vs, err, sizeof(err));
1287 vnc_client_error(vs);
1291 memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE);
1293 /* Calculate the expected challenge response */
1294 pwlen = strlen(vs->password);
1295 for (i=0; i<sizeof(key); i++)
1296 key[i] = i<pwlen ? vs->password[i] : 0;
1298 for (j = 0; j < VNC_AUTH_CHALLENGE_SIZE; j += 8)
1299 des(response+j, response+j);
1301 /* Compare expected vs actual challenge response */
1302 if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) {
1303 VNC_DEBUG("Client challenge reponse did not match\n");
1304 vnc_write_u32(vs, 1); /* Reject auth */
1305 if (vs->minor >= 8) {
1306 static const char err[] = "Authentication failed";
1307 vnc_write_u32(vs, sizeof(err));
1308 vnc_write(vs, err, sizeof(err));
1311 vnc_client_error(vs);
1313 VNC_DEBUG("Accepting VNC challenge response\n");
1314 vnc_write_u32(vs, 0); /* Accept auth */
1317 vnc_read_when(vs, protocol_client_init, 1);
1322 static int start_auth_vnc(VncState *vs)
1325 /* Send client a 'random' challenge */
1326 vnc_write(vs, vs->challenge, sizeof(vs->challenge));
1329 vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge));
1335 #define DH_BITS 1024
1336 static gnutls_dh_params_t dh_params;
1338 static int vnc_tls_initialize(void)
1340 static int tlsinitialized = 0;
1345 if (gnutls_global_init () < 0)
1348 /* XXX ought to re-generate diffie-hellmen params periodically */
1349 if (gnutls_dh_params_init (&dh_params) < 0)
1351 if (gnutls_dh_params_generate2 (dh_params, DH_BITS) < 0)
1355 gnutls_global_set_log_level(10);
1356 gnutls_global_set_log_function(vnc_debug_gnutls_log);
1364 static gnutls_anon_server_credentials vnc_tls_initialize_anon_cred(void)
1366 gnutls_anon_server_credentials anon_cred;
1369 if ((ret = gnutls_anon_allocate_server_credentials(&anon_cred)) < 0) {
1370 VNC_DEBUG("Cannot allocate credentials %s\n", gnutls_strerror(ret));
1374 gnutls_anon_set_server_dh_params(anon_cred, dh_params);
1380 static int start_auth_vencrypt_subauth(VncState *vs)
1382 switch (vs->subauth) {
1383 case VNC_AUTH_VENCRYPT_TLSNONE:
1384 VNC_DEBUG("Accept TLS auth none\n");
1385 vnc_write_u32(vs, 0); /* Accept auth completion */
1386 vnc_read_when(vs, protocol_client_init, 1);
1389 case VNC_AUTH_VENCRYPT_TLSVNC:
1390 VNC_DEBUG("Start TLS auth VNC\n");
1391 return start_auth_vnc(vs);
1393 default: /* Should not be possible, but just in case */
1394 VNC_DEBUG("Reject auth %d\n", vs->auth);
1395 vnc_write_u8(vs, 1);
1396 if (vs->minor >= 8) {
1397 static const char err[] = "Unsupported authentication type";
1398 vnc_write_u32(vs, sizeof(err));
1399 vnc_write(vs, err, sizeof(err));
1401 vnc_client_error(vs);
1407 static void vnc_handshake_io(void *opaque);
1409 static int vnc_continue_handshake(struct VncState *vs) {
1412 if ((ret = gnutls_handshake(vs->tls_session)) < 0) {
1413 if (!gnutls_error_is_fatal(ret)) {
1414 VNC_DEBUG("Handshake interrupted (blocking)\n");
1415 if (!gnutls_record_get_direction(vs->tls_session))
1416 qemu_set_fd_handler(vs->csock, vnc_handshake_io, NULL, vs);
1418 qemu_set_fd_handler(vs->csock, NULL, vnc_handshake_io, vs);
1421 VNC_DEBUG("Handshake failed %s\n", gnutls_strerror(ret));
1422 vnc_client_error(vs);
1426 VNC_DEBUG("Handshake done, switching to TLS data mode\n");
1427 vs->wiremode = VNC_WIREMODE_TLS;
1428 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
1430 return start_auth_vencrypt_subauth(vs);
1433 static void vnc_handshake_io(void *opaque) {
1434 struct VncState *vs = (struct VncState *)opaque;
1436 VNC_DEBUG("Handshake IO continue\n");
1437 vnc_continue_handshake(vs);
1440 static int vnc_start_tls(struct VncState *vs) {
1441 static const int cert_type_priority[] = { GNUTLS_CRT_X509, 0 };
1442 static const int protocol_priority[]= { GNUTLS_TLS1_1, GNUTLS_TLS1_0, GNUTLS_SSL3, 0 };
1443 static const int kx_anon[] = {GNUTLS_KX_ANON_DH, 0};
1444 gnutls_anon_server_credentials anon_cred = NULL;
1446 VNC_DEBUG("Do TLS setup\n");
1447 if (vnc_tls_initialize() < 0) {
1448 VNC_DEBUG("Failed to init TLS\n");
1449 vnc_client_error(vs);
1452 if (vs->tls_session == NULL) {
1453 if (gnutls_init(&vs->tls_session, GNUTLS_SERVER) < 0) {
1454 vnc_client_error(vs);
1458 if (gnutls_set_default_priority(vs->tls_session) < 0) {
1459 gnutls_deinit(vs->tls_session);
1460 vs->tls_session = NULL;
1461 vnc_client_error(vs);
1465 if (gnutls_kx_set_priority(vs->tls_session, kx_anon) < 0) {
1466 gnutls_deinit(vs->tls_session);
1467 vs->tls_session = NULL;
1468 vnc_client_error(vs);
1472 if (gnutls_certificate_type_set_priority(vs->tls_session, cert_type_priority) < 0) {
1473 gnutls_deinit(vs->tls_session);
1474 vs->tls_session = NULL;
1475 vnc_client_error(vs);
1479 if (gnutls_protocol_set_priority(vs->tls_session, protocol_priority) < 0) {
1480 gnutls_deinit(vs->tls_session);
1481 vs->tls_session = NULL;
1482 vnc_client_error(vs);
1486 anon_cred = vnc_tls_initialize_anon_cred();
1488 gnutls_deinit(vs->tls_session);
1489 vs->tls_session = NULL;
1490 vnc_client_error(vs);
1493 if (gnutls_credentials_set(vs->tls_session, GNUTLS_CRD_ANON, anon_cred) < 0) {
1494 gnutls_deinit(vs->tls_session);
1495 vs->tls_session = NULL;
1496 gnutls_anon_free_server_credentials(anon_cred);
1497 vnc_client_error(vs);
1501 gnutls_transport_set_ptr(vs->tls_session, (gnutls_transport_ptr_t)vs);
1502 gnutls_transport_set_push_function(vs->tls_session, vnc_tls_push);
1503 gnutls_transport_set_pull_function(vs->tls_session, vnc_tls_pull);
1506 VNC_DEBUG("Start TLS handshake process\n");
1507 return vnc_continue_handshake(vs);
1510 static int protocol_client_vencrypt_auth(VncState *vs, char *data, size_t len)
1512 int auth = read_u32(data, 0);
1514 if (auth != vs->subauth) {
1515 VNC_DEBUG("Rejecting auth %d\n", auth);
1516 vnc_write_u8(vs, 0); /* Reject auth */
1518 vnc_client_error(vs);
1520 VNC_DEBUG("Accepting auth %d, starting handshake\n", auth);
1521 vnc_write_u8(vs, 1); /* Accept auth */
1524 if (vnc_start_tls(vs) < 0) {
1525 VNC_DEBUG("Failed to complete TLS\n");
1529 if (vs->wiremode == VNC_WIREMODE_TLS) {
1530 VNC_DEBUG("Starting VeNCrypt subauth\n");
1531 return start_auth_vencrypt_subauth(vs);
1533 VNC_DEBUG("TLS handshake blocked\n");
1540 static int protocol_client_vencrypt_init(VncState *vs, char *data, size_t len)
1544 VNC_DEBUG("Unsupported VeNCrypt protocol %d.%d\n", (int)data[0], (int)data[1]);
1545 vnc_write_u8(vs, 1); /* Reject version */
1547 vnc_client_error(vs);
1549 VNC_DEBUG("Sending allowed auth %d\n", vs->subauth);
1550 vnc_write_u8(vs, 0); /* Accept version */
1551 vnc_write_u8(vs, 1); /* Number of sub-auths */
1552 vnc_write_u32(vs, vs->subauth); /* The supported auth */
1554 vnc_read_when(vs, protocol_client_vencrypt_auth, 4);
1559 static int start_auth_vencrypt(VncState *vs)
1561 /* Send VeNCrypt version 0.2 */
1562 vnc_write_u8(vs, 0);
1563 vnc_write_u8(vs, 2);
1565 vnc_read_when(vs, protocol_client_vencrypt_init, 2);
1568 #endif /* CONFIG_VNC_TLS */
1570 static int protocol_client_auth(VncState *vs, char *data, size_t len)
1572 /* We only advertise 1 auth scheme at a time, so client
1573 * must pick the one we sent. Verify this */
1574 if (data[0] != vs->auth) { /* Reject auth */
1575 VNC_DEBUG("Reject auth %d\n", (int)data[0]);
1576 vnc_write_u32(vs, 1);
1577 if (vs->minor >= 8) {
1578 static const char err[] = "Authentication failed";
1579 vnc_write_u32(vs, sizeof(err));
1580 vnc_write(vs, err, sizeof(err));
1582 vnc_client_error(vs);
1583 } else { /* Accept requested auth */
1584 VNC_DEBUG("Client requested auth %d\n", (int)data[0]);
1587 VNC_DEBUG("Accept auth none\n");
1588 vnc_write_u32(vs, 0); /* Accept auth completion */
1589 vnc_read_when(vs, protocol_client_init, 1);
1593 VNC_DEBUG("Start VNC auth\n");
1594 return start_auth_vnc(vs);
1597 case VNC_AUTH_VENCRYPT:
1598 VNC_DEBUG("Accept VeNCrypt auth\n");;
1599 return start_auth_vencrypt(vs);
1600 #endif /* CONFIG_VNC_TLS */
1602 default: /* Should not be possible, but just in case */
1603 VNC_DEBUG("Reject auth %d\n", vs->auth);
1604 vnc_write_u8(vs, 1);
1605 if (vs->minor >= 8) {
1606 static const char err[] = "Authentication failed";
1607 vnc_write_u32(vs, sizeof(err));
1608 vnc_write(vs, err, sizeof(err));
1610 vnc_client_error(vs);
1616 static int protocol_version(VncState *vs, char *version, size_t len)
1620 memcpy(local, version, 12);
1623 if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) {
1624 VNC_DEBUG("Malformed protocol version %s\n", local);
1625 vnc_client_error(vs);
1628 VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor);
1629 if (vs->major != 3 ||
1634 VNC_DEBUG("Unsupported client version\n");
1635 vnc_write_u32(vs, VNC_AUTH_INVALID);
1637 vnc_client_error(vs);
1640 /* Some broken client report v3.5 which spec requires to be treated
1641 * as equivalent to v3.3 by servers
1646 if (vs->minor == 3) {
1647 if (vs->auth == VNC_AUTH_NONE) {
1648 VNC_DEBUG("Tell client auth none\n");
1649 vnc_write_u32(vs, vs->auth);
1651 vnc_read_when(vs, protocol_client_init, 1);
1652 } else if (vs->auth == VNC_AUTH_VNC) {
1653 VNC_DEBUG("Tell client VNC auth\n");
1654 vnc_write_u32(vs, vs->auth);
1658 VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->auth);
1659 vnc_write_u32(vs, VNC_AUTH_INVALID);
1661 vnc_client_error(vs);
1664 VNC_DEBUG("Telling client we support auth %d\n", vs->auth);
1665 vnc_write_u8(vs, 1); /* num auth */
1666 vnc_write_u8(vs, vs->auth);
1667 vnc_read_when(vs, protocol_client_auth, 1);
1674 static void vnc_listen_read(void *opaque)
1676 VncState *vs = opaque;
1677 struct sockaddr_in addr;
1678 socklen_t addrlen = sizeof(addr);
1680 vs->csock = accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
1681 if (vs->csock != -1) {
1682 VNC_DEBUG("New client on socket %d\n", vs->csock);
1683 socket_set_nonblock(vs->csock);
1684 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, opaque);
1685 vnc_write(vs, "RFB 003.008\n", 12);
1687 vnc_read_when(vs, protocol_version, 12);
1688 memset(vs->old_data, 0, vs->ds->linesize * vs->ds->height);
1689 memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
1691 vs->has_hextile = 0;
1692 vs->ds->dpy_copy = NULL;
1696 extern int parse_host_port(struct sockaddr_in *saddr, const char *str);
1698 void vnc_display_init(DisplayState *ds)
1702 vs = qemu_mallocz(sizeof(VncState));
1709 vs->password = NULL;
1719 if (!keyboard_layout)
1720 keyboard_layout = "en-us";
1722 vs->kbd_layout = init_keyboard_layout(keyboard_layout);
1723 if (!vs->kbd_layout)
1726 vs->ds->data = NULL;
1727 vs->ds->dpy_update = vnc_dpy_update;
1728 vs->ds->dpy_resize = vnc_dpy_resize;
1729 vs->ds->dpy_refresh = vnc_dpy_refresh;
1731 memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
1733 vnc_dpy_resize(vs->ds, 640, 400);
1736 void vnc_display_close(DisplayState *ds)
1738 VncState *vs = ds ? (VncState *)ds->opaque : vnc_state;
1741 qemu_free(vs->display);
1744 if (vs->lsock != -1) {
1745 qemu_set_fd_handler2(vs->lsock, NULL, NULL, NULL, NULL);
1749 if (vs->csock != -1) {
1750 qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
1751 closesocket(vs->csock);
1753 buffer_reset(&vs->input);
1754 buffer_reset(&vs->output);
1755 vs->need_update = 0;
1757 if (vs->tls_session) {
1758 gnutls_deinit(vs->tls_session);
1759 vs->tls_session = NULL;
1761 vs->wiremode = VNC_WIREMODE_CLEAR;
1762 #endif /* CONFIG_VNC_TLS */
1764 vs->auth = VNC_AUTH_INVALID;
1766 vs->subauth = VNC_AUTH_INVALID;
1770 int vnc_display_password(DisplayState *ds, const char *password)
1772 VncState *vs = ds ? (VncState *)ds->opaque : vnc_state;
1775 qemu_free(vs->password);
1776 vs->password = NULL;
1778 if (password && password[0]) {
1779 if (!(vs->password = qemu_strdup(password)))
1786 int vnc_display_open(DisplayState *ds, const char *display)
1788 struct sockaddr *addr;
1789 struct sockaddr_in iaddr;
1791 struct sockaddr_un uaddr;
1793 int reuse_addr, ret;
1796 VncState *vs = ds ? (VncState *)ds->opaque : vnc_state;
1797 const char *options;
1803 vnc_display_close(ds);
1804 if (strcmp(display, "none") == 0)
1807 if (!(vs->display = strdup(display)))
1811 while ((options = strchr(options, ','))) {
1813 if (strncmp(options, "password", 8) == 0)
1814 password = 1; /* Require password auth */
1816 else if (strncmp(options, "tls", 3) == 0)
1817 tls = 1; /* Require TLS */
1824 VNC_DEBUG("Initializing VNC server with TLS password auth\n");
1825 vs->auth = VNC_AUTH_VENCRYPT;
1826 vs->subauth = VNC_AUTH_VENCRYPT_TLSVNC;
1829 VNC_DEBUG("Initializing VNC server with password auth\n");
1830 vs->auth = VNC_AUTH_VNC;
1832 vs->subauth = VNC_AUTH_INVALID;
1838 VNC_DEBUG("Initializing VNC server with TLS no auth\n");
1839 vs->auth = VNC_AUTH_VENCRYPT;
1840 vs->subauth = VNC_AUTH_VENCRYPT_TLSNONE;
1843 VNC_DEBUG("Initializing VNC server with no auth\n");
1844 vs->auth = VNC_AUTH_NONE;
1846 vs->subauth = VNC_AUTH_INVALID;
1851 if (strstart(display, "unix:", &p)) {
1852 addr = (struct sockaddr *)&uaddr;
1853 addrlen = sizeof(uaddr);
1855 vs->lsock = socket(PF_UNIX, SOCK_STREAM, 0);
1856 if (vs->lsock == -1) {
1857 fprintf(stderr, "Could not create socket\n");
1863 uaddr.sun_family = AF_UNIX;
1864 memset(uaddr.sun_path, 0, 108);
1865 snprintf(uaddr.sun_path, 108, "%s", p);
1867 unlink(uaddr.sun_path);
1871 addr = (struct sockaddr *)&iaddr;
1872 addrlen = sizeof(iaddr);
1874 if (parse_host_port(&iaddr, display) < 0) {
1875 fprintf(stderr, "Could not parse VNC address\n");
1881 iaddr.sin_port = htons(ntohs(iaddr.sin_port) + 5900);
1883 vs->lsock = socket(PF_INET, SOCK_STREAM, 0);
1884 if (vs->lsock == -1) {
1885 fprintf(stderr, "Could not create socket\n");
1892 ret = setsockopt(vs->lsock, SOL_SOCKET, SO_REUSEADDR,
1893 (const char *)&reuse_addr, sizeof(reuse_addr));
1895 fprintf(stderr, "setsockopt() failed\n");
1904 if (bind(vs->lsock, addr, addrlen) == -1) {
1905 fprintf(stderr, "bind() failed\n");
1913 if (listen(vs->lsock, 1) == -1) {
1914 fprintf(stderr, "listen() failed\n");
1922 return qemu_set_fd_handler2(vs->lsock, vnc_listen_poll, vnc_listen_read, NULL, vs);