aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/programs/Xserver/hw/nxagent/Init.c
blob: d02af3f8d3d7cc621eefbe01deaa08e4a1847f39 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
/**************************************************************************/
/*                                                                        */
/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com)          */
/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>  */
/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de>                */
/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de>                 */
/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com)           */
/*                                                                        */
/* NXAGENT, NX protocol compression and NX extensions to this software    */
/* are copyright of the aforementioned persons and companies.             */
/*                                                                        */
/* Redistribution and use of the present software is allowed according    */
/* to terms specified in the file LICENSE which comes in the source       */
/* distribution.                                                          */
/*                                                                        */
/* All rights reserved.                                                   */
/*                                                                        */
/* NOTE: This software has received contributions from various other      */
/* contributors, only the core maintainers and supporters are listed as   */
/* copyright holders. Please contact us, if you feel you should be listed */
/* as copyright holder, as well.                                          */
/*                                                                        */
/**************************************************************************/

/*

Copyright 1993 by Davor Matic

Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation.  Davor Matic makes no representations about
the suitability of this software for any purpose.  It is provided "as
is" without express or implied warranty.

*/

#include <sys/types.h>
#include <unistd.h>
#include <stdarg.h>

#include "X.h"
#include "Xproto.h"
#include "screenint.h"
#include "input.h"
#include "misc.h"
#include "scrnintstr.h"
#include "windowstr.h"
#include "servermd.h"
#include "mi.h"
#include <X11/fonts/fontstruct.h>
#include "dixfontstr.h"

#include "Agent.h"
#include "Display.h"
#include "Screen.h"
#include "Pointer.h"
#include "Keyboard.h"
#include "Handlers.h"
#include "Events.h"
#include "Init.h"
#include "Args.h"
#include "Client.h"
#include "Options.h"
#include "Drawable.h"
#include "Pixmaps.h"
#include "GCs.h"
#include "Font.h"
#include "Millis.h"
#include "Error.h"
#include "Keystroke.h"

#include <nx/NX.h>
#include "compext/Compext.h"
#include "Reconnect.h"
/*
 * Set here the required log level.
 */

#define PANIC
#define WARNING
#undef  TEST
#undef  DEBUG
#undef  DUMP

/*
 * ProcVector array defined in tables.c.
 */

extern int (*ProcVector[256])(ClientPtr);

/*
 * From the fb code.
 */

extern int fbGCPrivateIndex;

/*
 * Stubs for the DPMS extension.
 */

#ifdef DPMSExtension

void DPMSSet(int level);
int DPMSGet(int *level);
Bool DPMSSupported(void);

#endif

/*
 * Our error logging function.
 */

void OsVendorVErrorFFunction(const char *f, va_list args);

/*
 * True if this is a fatal error.
 */

extern int OsVendorVErrorFFatal;

/*
 * Redirect the error output to a
 * different file
 */

extern void (*OsVendorStartRedirectErrorFProc)();
extern void (*OsVendorEndRedirectErrorFProc)();

extern void SetVendorRelease(int release);

void OsVendorStartRedirectErrorFFunction();
void OsVendorEndRedirectErrorFFunction();

/*
 * Called by InitGlobals() in the
 * new X server tree.
 */


static void nxagentGrabServerCallback(CallbackListPtr *callbacks, void *data,
                                   void *args);

void ddxInitGlobals(void)
{
  /*
   * Install our error logging function.
   */

  OsVendorVErrorFProc = OsVendorVErrorFFunction;

  OsVendorStartRedirectErrorFProc = OsVendorStartRedirectErrorFFunction;
  OsVendorEndRedirectErrorFProc   = OsVendorEndRedirectErrorFFunction;
}

/*
 * Set if the remote display supports
 * backing store.
 */
/*
FIXME: These, if not removed, should at least
       be moved to Display.h and Display.c.
*/
int nxagentBackingStore;
int nxagentSaveUnder;

/*
 * This is true at startup and set to the value of
 * nxagentFullGeneration at the end of InitInput.
 *
 *   InitOutput
 *      nxagentOpenDisplay (if nxagentDoFullGeneration)
 *         nxagentCloseDisplay (if (nxagentDoFullGeneration && nxagentDisplay))
 *            nxagentFree*
 *      nxagentListRemoteFonts
 *      AddScreen
 *         nxagentOpenScreen
 *   InitInput
 */

int nxagentDoFullGeneration = 1;

 /*
 * 1 if agent running as X2goAgent
 * 0 if NX Agent
 */
int nxagentX2go;

/*
 * Checking if agent is x2go agent
 */

void checkX2goAgent(void)
{
  extern const char *nxagentProgName;

  #ifdef TEST
  fprintf(stderr, "%s: nxagentProgName [%s]\n", __func__, nxagentProgName);
  #endif

  if( strcasecmp(nxagentProgName,"x2goagent") == 0)
  {
    fprintf(stderr, "\nrunning as X2Go Agent\n");
    nxagentX2go=1;
  }
  else
    nxagentX2go=0;
}


/*
 * Called at X server's initialization.
 */

void InitOutput(ScreenInfo *screenInfo, int argc, char *argv[])
{
  char *authority;
  int i;

  #ifdef __sun

  char *environment;

  #endif

  /*
   * Print our pid and version information.
   */

  if (serverGeneration <= 1)
  {
    fprintf(stderr, "\nNXAGENT - Version " NX_VERSION_CURRENT_STRING "\n\n");
    fprintf(stderr, "Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com)\n");
    fprintf(stderr, "Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>\n");
    fprintf(stderr, "Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>\n");
    fprintf(stderr, "Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de>\n");
    fprintf(stderr, "Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de>\n");
    fprintf(stderr, "Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com)\n");
    fprintf(stderr, "See https://github.com/ArcticaProject/nx-libs for more information.\n\n");

    fprintf(stderr, "Info: Agent running with pid '%d'.\n", getpid());

    fprintf(stderr, "Session: Starting session at '%s'.\n", GetTimeAsString());
    saveAgentState("STARTING");
  }

  /*
   * Avoid slowness due to buggy_repeat workaround
   * in libcairo versions >= 1.10.
   */

  SetVendorRelease(70000000);

  /*
   * Init the time count for image rate.
   */

  if (nxagentOption(ImageRateLimit) != 0)
  { 
    fprintf(stderr, "Info: Image rate limit set to %u kB/s.\n", nxagentOption(ImageRateLimit));
  }

  /*
   * Unset the LD_LIBRARY_PATH variable in
   * Popen() before calling execl() in the
   * child process.
   */

  NXUnsetLibraryPath(1);

  if (serverGeneration == 1)
  {
    AddCallback(&ServerGrabCallback, nxagentGrabServerCallback, NULL);
  }

  if (nxagentUserDefinedFontPath == 0)
  {
    #ifdef TEST
    fprintf(stderr, "InitOutput: Calling nxagentVerifyDefaultFontPath.\n");
    #endif

    nxagentVerifyDefaultFontPath();
  }
  #ifdef TEST
  else
  {
    fprintf(stderr, "InitOutput: User defined font path. Skipping the check on the fonts dir.\n");
  }
  #endif

  if ((authority = getenv("NX_XAUTHORITY")))
  {
    #ifdef __sun

    environment = malloc(15 + strlen(authority));

    sprintf(environment, "XAUTHORITY=%s", authority);

    if (putenv(environment) < 0)

    #else

    if (setenv("XAUTHORITY", authority, True) < 0)

    #endif

    {
      fprintf(stderr, "Warning: Couldn't set the XAUTHORITY environment to [%s]\n",
                  authority);
    }
  }

  nxagentInitBSPixmapList();

  /*
   * Open the display. We are at the early startup and
   * the information we'll get from the remote X server
   * will mandate some of the characteristics of the
   * session, like the screen depth. Note that this re-
   * liance on the remote display at session startup
   * should be removed. We should always operate at 32
   * bpp, internally, and do the required translations
   * as soon as the graphic operation needs to be real-
   * ized on the remote display.
   */

  nxagentOpenDisplay(argc, argv);

/*
FIXME: These variables, if not removed at all because have probably
       become useless, should be moved to Display.h and Display.c.
*/
  nxagentBackingStore = XDoesBackingStore(DefaultScreenOfDisplay(nxagentDisplay));

  #ifdef TEST
  fprintf(stderr, "InitOutput: Remote display backing store support [%d].\n",
              nxagentBackingStore);
  #endif

  nxagentSaveUnder = XDoesSaveUnders(DefaultScreenOfDisplay(nxagentDisplay));

  #ifdef TEST
  fprintf(stderr, "InitOutput: Remote display save under support [%d].\n",
              nxagentSaveUnder);
  #endif

  /*
   * Initialize the basic screen info.
   */

  nxagentSetScreenInfo(screenInfo);

  /*
   * Initialize pixmap formats for this screen.
   */

  nxagentSetPixmapFormats(screenInfo);

  /*
   * Get our own privates' index.
   */

  nxagentWindowPrivateIndex = AllocateWindowPrivateIndex();
  nxagentGCPrivateIndex = AllocateGCPrivateIndex();
  RT_NX_GC = CreateNewResourceType(nxagentDestroyNewGCResourceType);
#ifdef HAS_XFONT2
  nxagentFontPrivateIndex = xfont2_allocate_font_private_index();
#else
  nxagentFontPrivateIndex = AllocateFontPrivateIndex();
#endif /* HAS_XFONT2 */
  RT_NX_FONT = CreateNewResourceType(nxagentDestroyNewFontResourceType); 
  nxagentClientPrivateIndex = AllocateClientPrivateIndex();
  nxagentPixmapPrivateIndex = AllocatePixmapPrivateIndex();
  RT_NX_PIXMAP = CreateNewResourceType(nxagentDestroyNewPixmapResourceType); 

  RT_NX_CORR_BACKGROUND = CreateNewResourceType(nxagentDestroyCorruptedBackgroundResource);
  RT_NX_CORR_WINDOW = CreateNewResourceType(nxagentDestroyCorruptedWindowResource);
  RT_NX_CORR_PIXMAP = CreateNewResourceType(nxagentDestroyCorruptedPixmapResource);

  fbGCPrivateIndex = AllocateGCPrivateIndex();

  if (nxagentNumScreens == 0)
  {
    nxagentNumScreens = 1;
  }

  for (i = 0; i < nxagentNumScreens; i++)
  {
    AddScreen(nxagentOpenScreen, argc, argv);
  }

  nxagentNumScreens = screenInfo->numScreens;

  /*
   * Initialize the GCs used by the synchro-
   * nization put images. We do it here beca-
   * use we use the nxagentDefaultScreen.
   */

  nxagentAllocateGraphicContexts();

  nxagentDoFullGeneration = nxagentFullGeneration;

  /*
   * Use a solid black root window
   * background.
   */

  blackRoot = TRUE;

  nxagentInitKeystrokes(False);
}

void
nxagentNotifyConnection(int fd, int ready, void *data)
{
    nxagentDispatchEvents(NULL);
}

void InitInput(argc, argv)
     int argc;
     char *argv[];
{
  void *ptr, *kbd;

  ptr = AddInputDevice(nxagentPointerProc, True);
  kbd = AddInputDevice(nxagentKeyboardProc, True);

  RegisterPointerDevice(ptr);
  RegisterKeyboardDevice(kbd);

  mieqInit(kbd, ptr);

  /*
   * Add the display descriptor to the
   * set of descriptors awaited by the
   * dispatcher.
   */

  nxagentAddXConnection();

  if (nxagentOption(Shadow))
  {
    RegisterBlockAndWakeupHandlers(nxagentShadowBlockHandler, nxagentShadowWakeupHandler, NULL);
  }
  else
  {
    RegisterBlockAndWakeupHandlers(nxagentBlockHandler, nxagentWakeupHandler, NULL);
  }

  /*
   * We let the proxy flush the link on our behalf
   * after having opened the display. We are now
   * entering the dispatcher. From now on we'll
   * flush the proxy link explicitly.
   */

  #ifdef TEST
  fprintf(stderr, "InitInput: Setting the NX flush policy to deferred.\n");
  #endif

  NXSetDisplayPolicy(nxagentDisplay, NXPolicyDeferred);
}

/*
 * DDX specific abort routine. This is called
 * by AbortServer() that, in turn, is called
 * by FatalError().
 */

void AbortDDX(void)
{
  nxagentDoFullGeneration = True;

  nxagentCloseDisplay();

  /*
   * Do the required finalization if we
   * are not going through the normal
   * X server shutdown.
   */

  if ((dispatchException & DE_TERMINATE) == 0)
  {
    nxagentAbortDisplay();
  }
}

/*
 * Called by GiveUp().
 */

void ddxGiveUp(void)
{
  AbortDDX();
}

void ddxBeforeReset(void)
{
}

void OsVendorInit(void)
{
  return;
}

void OsVendorFatalError(void)
{
  /*
   * Let the session terminate gracely
   * from an user's standpoint.
   */

  fprintf(stderr, "Session: Aborting session at '%s'.\n", GetTimeAsString());

  fprintf(stderr, "Session: Session aborted at '%s'.\n", GetTimeAsString());
}

void OsVendorVErrorFFunction(const char *f, va_list args)
{
  if (OsVendorVErrorFFatal == 0)
  {
    char buffer[1024];

    vsnprintf(buffer, sizeof(buffer), f, args);

    nxagentStartRedirectToClientsLog();

    fprintf(stderr, "%s", buffer);

    nxagentEndRedirectToClientsLog();
  }
  else
  {
    LogVWrite(-1, f, args);
  }
}

void OsVendorStartRedirectErrorFFunction(void)
{
  nxagentStartRedirectToClientsLog();
}

void OsVendorEndRedirectErrorFFunction(void)
{
  nxagentEndRedirectToClientsLog();
}

ServerGrabInfoRec nxagentGrabServerInfo;

static void nxagentGrabServerCallback(CallbackListPtr *callbacks, void *data,
                                   void *args)
{
    ServerGrabInfoRec *grab = (ServerGrabInfoRec*)args;

    nxagentGrabServerInfo.client = grab->client;
    nxagentGrabServerInfo.grabstate = grab->grabstate;
}

#ifdef DPMSExtension

void DPMSSet(int level)
{
}

int DPMSGet(int *level)
{
  return -1;
}

Bool DPMSSupported(void)
{
  return 0;
}

#endif