root / vnc.h @ 68f6dc7e
History | View | Annotate | Download (9.6 kB)
1 |
/*
|
---|---|
2 |
* QEMU VNC display driver
|
3 |
*
|
4 |
* Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
|
5 |
* Copyright (C) 2006 Fabrice Bellard
|
6 |
* Copyright (C) 2009 Red Hat, Inc
|
7 |
*
|
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 |
|
27 |
#ifndef __QEMU_VNC_H
|
28 |
#define __QEMU_VNC_H
|
29 |
|
30 |
#include "qemu-common.h" |
31 |
#include "console.h" |
32 |
#include "monitor.h" |
33 |
#include "audio/audio.h" |
34 |
#include <zlib.h> |
35 |
|
36 |
#include "keymaps.h" |
37 |
|
38 |
// #define _VNC_DEBUG 1
|
39 |
|
40 |
#ifdef _VNC_DEBUG
|
41 |
#define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
42 |
#else
|
43 |
#define VNC_DEBUG(fmt, ...) do { } while (0) |
44 |
#endif
|
45 |
|
46 |
/*****************************************************************************
|
47 |
*
|
48 |
* Core data structures
|
49 |
*
|
50 |
*****************************************************************************/
|
51 |
|
52 |
typedef struct Buffer |
53 |
{ |
54 |
size_t capacity; |
55 |
size_t offset; |
56 |
uint8_t *buffer; |
57 |
} Buffer; |
58 |
|
59 |
typedef struct VncState VncState; |
60 |
|
61 |
typedef int VncReadEvent(VncState *vs, uint8_t *data, size_t len); |
62 |
|
63 |
typedef void VncWritePixels(VncState *vs, void *data, int size); |
64 |
|
65 |
typedef void VncSendHextileTile(VncState *vs, |
66 |
int x, int y, int w, int h, |
67 |
void *last_bg,
|
68 |
void *last_fg,
|
69 |
int *has_bg, int *has_fg); |
70 |
|
71 |
#define VNC_MAX_WIDTH 2048 |
72 |
#define VNC_MAX_HEIGHT 2048 |
73 |
#define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * 32)) |
74 |
|
75 |
#define VNC_AUTH_CHALLENGE_SIZE 16 |
76 |
|
77 |
typedef struct VncDisplay VncDisplay; |
78 |
|
79 |
#ifdef CONFIG_VNC_TLS
|
80 |
#include "vnc-tls.h" |
81 |
#include "vnc-auth-vencrypt.h" |
82 |
#endif
|
83 |
#ifdef CONFIG_VNC_SASL
|
84 |
#include "vnc-auth-sasl.h" |
85 |
#endif
|
86 |
|
87 |
struct VncSurface
|
88 |
{ |
89 |
uint32_t dirty[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS]; |
90 |
DisplaySurface *ds; |
91 |
}; |
92 |
|
93 |
struct VncDisplay
|
94 |
{ |
95 |
QEMUTimer *timer; |
96 |
int timer_interval;
|
97 |
int lsock;
|
98 |
DisplayState *ds; |
99 |
VncState *clients; |
100 |
kbd_layout_t *kbd_layout; |
101 |
|
102 |
struct VncSurface guest; /* guest visible surface (aka ds->surface) */ |
103 |
DisplaySurface *server; /* vnc server surface */
|
104 |
|
105 |
char *display;
|
106 |
char *password;
|
107 |
int auth;
|
108 |
#ifdef CONFIG_VNC_TLS
|
109 |
int subauth; /* Used by VeNCrypt */ |
110 |
VncDisplayTLS tls; |
111 |
#endif
|
112 |
#ifdef CONFIG_VNC_SASL
|
113 |
VncDisplaySASL sasl; |
114 |
#endif
|
115 |
}; |
116 |
|
117 |
struct VncState
|
118 |
{ |
119 |
int csock;
|
120 |
|
121 |
DisplayState *ds; |
122 |
uint32_t dirty[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS]; |
123 |
|
124 |
VncDisplay *vd; |
125 |
int need_update;
|
126 |
int force_update;
|
127 |
uint32_t features; |
128 |
int absolute;
|
129 |
int last_x;
|
130 |
int last_y;
|
131 |
|
132 |
uint32_t vnc_encoding; |
133 |
uint8_t tight_quality; |
134 |
uint8_t tight_compression; |
135 |
|
136 |
int major;
|
137 |
int minor;
|
138 |
|
139 |
char challenge[VNC_AUTH_CHALLENGE_SIZE];
|
140 |
#ifdef CONFIG_VNC_TLS
|
141 |
VncStateTLS tls; |
142 |
#endif
|
143 |
#ifdef CONFIG_VNC_SASL
|
144 |
VncStateSASL sasl; |
145 |
#endif
|
146 |
|
147 |
Buffer output; |
148 |
Buffer input; |
149 |
/* current output mode information */
|
150 |
VncWritePixels *write_pixels; |
151 |
VncSendHextileTile *send_hextile_tile; |
152 |
DisplaySurface clientds; |
153 |
|
154 |
CaptureVoiceOut *audio_cap; |
155 |
struct audsettings as;
|
156 |
|
157 |
VncReadEvent *read_handler; |
158 |
size_t read_handler_expect; |
159 |
/* input */
|
160 |
uint8_t modifiers_state[256];
|
161 |
|
162 |
Buffer zlib; |
163 |
Buffer zlib_tmp; |
164 |
z_stream zlib_stream[4];
|
165 |
|
166 |
VncState *next; |
167 |
}; |
168 |
|
169 |
|
170 |
/*****************************************************************************
|
171 |
*
|
172 |
* Authentication modes
|
173 |
*
|
174 |
*****************************************************************************/
|
175 |
|
176 |
enum {
|
177 |
VNC_AUTH_INVALID = 0,
|
178 |
VNC_AUTH_NONE = 1,
|
179 |
VNC_AUTH_VNC = 2,
|
180 |
VNC_AUTH_RA2 = 5,
|
181 |
VNC_AUTH_RA2NE = 6,
|
182 |
VNC_AUTH_TIGHT = 16,
|
183 |
VNC_AUTH_ULTRA = 17,
|
184 |
VNC_AUTH_TLS = 18, /* Supported in GTK-VNC & VINO */ |
185 |
VNC_AUTH_VENCRYPT = 19, /* Supported in GTK-VNC & VeNCrypt */ |
186 |
VNC_AUTH_SASL = 20, /* Supported in GTK-VNC & VINO */ |
187 |
}; |
188 |
|
189 |
enum {
|
190 |
VNC_AUTH_VENCRYPT_PLAIN = 256,
|
191 |
VNC_AUTH_VENCRYPT_TLSNONE = 257,
|
192 |
VNC_AUTH_VENCRYPT_TLSVNC = 258,
|
193 |
VNC_AUTH_VENCRYPT_TLSPLAIN = 259,
|
194 |
VNC_AUTH_VENCRYPT_X509NONE = 260,
|
195 |
VNC_AUTH_VENCRYPT_X509VNC = 261,
|
196 |
VNC_AUTH_VENCRYPT_X509PLAIN = 262,
|
197 |
VNC_AUTH_VENCRYPT_X509SASL = 263,
|
198 |
VNC_AUTH_VENCRYPT_TLSSASL = 264,
|
199 |
}; |
200 |
|
201 |
|
202 |
/*****************************************************************************
|
203 |
*
|
204 |
* Encoding types
|
205 |
*
|
206 |
*****************************************************************************/
|
207 |
|
208 |
#define VNC_ENCODING_RAW 0x00000000 |
209 |
#define VNC_ENCODING_COPYRECT 0x00000001 |
210 |
#define VNC_ENCODING_RRE 0x00000002 |
211 |
#define VNC_ENCODING_CORRE 0x00000004 |
212 |
#define VNC_ENCODING_HEXTILE 0x00000005 |
213 |
#define VNC_ENCODING_ZLIB 0x00000006 |
214 |
#define VNC_ENCODING_TIGHT 0x00000007 |
215 |
#define VNC_ENCODING_ZLIBHEX 0x00000008 |
216 |
#define VNC_ENCODING_TRLE 0x0000000f |
217 |
#define VNC_ENCODING_ZRLE 0x00000010 |
218 |
#define VNC_ENCODING_ZYWRLE 0x00000011 |
219 |
#define VNC_ENCODING_COMPRESSLEVEL0 0xFFFFFF00 /* -256 */ |
220 |
#define VNC_ENCODING_QUALITYLEVEL0 0xFFFFFFE0 /* -32 */ |
221 |
#define VNC_ENCODING_XCURSOR 0xFFFFFF10 /* -240 */ |
222 |
#define VNC_ENCODING_RICH_CURSOR 0xFFFFFF11 /* -239 */ |
223 |
#define VNC_ENCODING_POINTER_POS 0xFFFFFF18 /* -232 */ |
224 |
#define VNC_ENCODING_LASTRECT 0xFFFFFF20 /* -224 */ |
225 |
#define VNC_ENCODING_DESKTOPRESIZE 0xFFFFFF21 /* -223 */ |
226 |
#define VNC_ENCODING_POINTER_TYPE_CHANGE 0XFFFFFEFF /* -257 */ |
227 |
#define VNC_ENCODING_EXT_KEY_EVENT 0XFFFFFEFE /* -258 */ |
228 |
#define VNC_ENCODING_AUDIO 0XFFFFFEFD /* -259 */ |
229 |
#define VNC_ENCODING_WMVi 0x574D5669 |
230 |
|
231 |
/*****************************************************************************
|
232 |
*
|
233 |
* Other tight constants
|
234 |
*
|
235 |
*****************************************************************************/
|
236 |
|
237 |
/*
|
238 |
* Vendors known by TightVNC: standard VNC/RealVNC, TridiaVNC, and TightVNC.
|
239 |
*/
|
240 |
|
241 |
#define VNC_TIGHT_CCB_RESET_MASK (0x0f) |
242 |
#define VNC_TIGHT_CCB_TYPE_MASK (0x0f << 4) |
243 |
#define VNC_TIGHT_CCB_TYPE_FILL (0x08 << 4) |
244 |
#define VNC_TIGHT_CCB_TYPE_JPEG (0x09 << 4) |
245 |
#define VNC_TIGHT_CCB_BASIC_MAX (0x07 << 4) |
246 |
#define VNC_TIGHT_CCB_BASIC_ZLIB (0x03 << 4) |
247 |
#define VNC_TIGHT_CCB_BASIC_FILTER (0x04 << 4) |
248 |
|
249 |
/*****************************************************************************
|
250 |
*
|
251 |
* Features
|
252 |
*
|
253 |
*****************************************************************************/
|
254 |
|
255 |
#define VNC_FEATURE_RESIZE 0 |
256 |
#define VNC_FEATURE_HEXTILE 1 |
257 |
#define VNC_FEATURE_POINTER_TYPE_CHANGE 2 |
258 |
#define VNC_FEATURE_WMVI 3 |
259 |
#define VNC_FEATURE_TIGHT 4 |
260 |
#define VNC_FEATURE_ZLIB 5 |
261 |
#define VNC_FEATURE_COPYRECT 6 |
262 |
|
263 |
#define VNC_FEATURE_RESIZE_MASK (1 << VNC_FEATURE_RESIZE) |
264 |
#define VNC_FEATURE_HEXTILE_MASK (1 << VNC_FEATURE_HEXTILE) |
265 |
#define VNC_FEATURE_POINTER_TYPE_CHANGE_MASK (1 << VNC_FEATURE_POINTER_TYPE_CHANGE) |
266 |
#define VNC_FEATURE_WMVI_MASK (1 << VNC_FEATURE_WMVI) |
267 |
#define VNC_FEATURE_TIGHT_MASK (1 << VNC_FEATURE_TIGHT) |
268 |
#define VNC_FEATURE_ZLIB_MASK (1 << VNC_FEATURE_ZLIB) |
269 |
#define VNC_FEATURE_COPYRECT_MASK (1 << VNC_FEATURE_COPYRECT) |
270 |
|
271 |
|
272 |
/*****************************************************************************
|
273 |
*
|
274 |
* Internal APIs
|
275 |
*
|
276 |
*****************************************************************************/
|
277 |
|
278 |
/* Event loop functions */
|
279 |
void vnc_client_read(void *opaque); |
280 |
void vnc_client_write(void *opaque); |
281 |
|
282 |
long vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen);
|
283 |
long vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen); |
284 |
|
285 |
/* Protocol I/O functions */
|
286 |
void vnc_write(VncState *vs, const void *data, size_t len); |
287 |
void vnc_write_u32(VncState *vs, uint32_t value);
|
288 |
void vnc_write_s32(VncState *vs, int32_t value);
|
289 |
void vnc_write_u16(VncState *vs, uint16_t value);
|
290 |
void vnc_write_u8(VncState *vs, uint8_t value);
|
291 |
void vnc_flush(VncState *vs);
|
292 |
void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting);
|
293 |
|
294 |
|
295 |
/* Buffer I/O functions */
|
296 |
uint8_t read_u8(uint8_t *data, size_t offset); |
297 |
uint16_t read_u16(uint8_t *data, size_t offset); |
298 |
int32_t read_s32(uint8_t *data, size_t offset); |
299 |
uint32_t read_u32(uint8_t *data, size_t offset); |
300 |
|
301 |
/* Protocol stage functions */
|
302 |
void vnc_client_error(VncState *vs);
|
303 |
int vnc_client_io_error(VncState *vs, int ret, int last_errno); |
304 |
|
305 |
void start_client_init(VncState *vs);
|
306 |
void start_auth_vnc(VncState *vs);
|
307 |
|
308 |
/* Buffer management */
|
309 |
void buffer_reserve(Buffer *buffer, size_t len);
|
310 |
int buffer_empty(Buffer *buffer);
|
311 |
uint8_t *buffer_end(Buffer *buffer); |
312 |
void buffer_reset(Buffer *buffer);
|
313 |
void buffer_append(Buffer *buffer, const void *data, size_t len); |
314 |
|
315 |
|
316 |
/* Misc helpers */
|
317 |
|
318 |
char *vnc_socket_local_addr(const char *format, int fd); |
319 |
char *vnc_socket_remote_addr(const char *format, int fd); |
320 |
|
321 |
#endif /* __QEMU_VNC_H */ |