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ntdll: Avoid inter-process APCs when called for the process itself.
[wine/multimedia.git] / dlls / winedos / vxd.c
blob9a4f1cdcab556a891f9d638562b30fac91243242
1 /*
2 * VxD emulation
3 *
4 * Copyright 1995 Anand Kumria
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <fcntl.h>
25 #include <string.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <sys/types.h>
29 #ifdef HAVE_UNISTD_H
30 # include <unistd.h>
31 #endif
32
33 #define NONAMELESSUNION
34 #define NONAMELESSSTRUCT
35 #include "ntstatus.h"
36 #define WIN32_NO_STATUS
37 #include "windef.h"
38 #include "winbase.h"
39 #include "winreg.h"
40 #include "winternl.h"
41 #include "wingdi.h"
42 #include "winuser.h"
43 #include "wine/winbase16.h"
44 #include "wine/winuser16.h"
45 #include "dosexe.h"
46 #include "wine/debug.h"
47
48 WINE_DEFAULT_DEBUG_CHANNEL(vxd);
49
50 #define W32S_APP2WINE(addr) ((addr)? (DWORD)(addr) + W32S_offset : 0)
51 #define W32S_WINE2APP(addr) ((addr)? (DWORD)(addr) - W32S_offset : 0)
52
53 #define VXD_BARF(context,name) \
54 TRACE( "vxd %s: unknown/not implemented parameters:\n" \
55 "vxd %s: AX %04x, BX %04x, CX %04x, DX %04x, " \
56 "SI %04x, DI %04x, DS %04x, ES %04x\n", \
57 (name), (name), AX_reg(context), BX_reg(context), \
58 CX_reg(context), DX_reg(context), SI_reg(context), \
59 DI_reg(context), (WORD)context->SegDs, (WORD)context->SegEs )
60
61 UINT W32S_offset = 0;
62
63 static WORD VXD_WinVersion(void)
64 {
65 WORD version = LOWORD(GetVersion16());
66 return (version >> 8) | (version << 8);
67 }
68
69 /***********************************************************************
70 * VXD_VMM (WPROCS.401)
71 */
72 void WINAPI VXD_VMM ( CONTEXT86 *context )
73 {
74 unsigned service = AX_reg(context);
75
76 TRACE("[%04x] VMM\n", (UINT16)service);
77
78 switch(service)
79 {
80 case 0x0000: /* version */
81 SET_AX( context, VXD_WinVersion() );
82 RESET_CFLAG(context);
83 break;
84
85 case 0x026d: /* Get_Debug_Flag '/m' */
86 case 0x026e: /* Get_Debug_Flag '/n' */
87 SET_AL( context, 0 );
88 RESET_CFLAG(context);
89 break;
90
91 default:
92 VXD_BARF( context, "VMM" );
93 }
94 }
95
96 /***********************************************************************
97 * VXD_PageFile (WPROCS.433)
98 */
99 void WINAPI VXD_PageFile( CONTEXT86 *context )
100 {
101 unsigned service = AX_reg(context);
102
103 /* taken from Ralf Brown's Interrupt List */
104
105 TRACE("[%04x] PageFile\n", (UINT16)service );
106
107 switch(service)
108 {
109 case 0x00: /* get version, is this windows version? */
110 TRACE("returning version\n");
111 SET_AX( context, VXD_WinVersion() );
112 RESET_CFLAG(context);
113 break;
114
115 case 0x01: /* get swap file info */
116 TRACE("VxD PageFile: returning swap file info\n");
117 SET_AX( context, 0x00 ); /* paging disabled */
118 context->Ecx = 0; /* maximum size of paging file */
119 /* FIXME: do I touch DS:SI or DS:DI? */
120 RESET_CFLAG(context);
121 break;
122
123 case 0x02: /* delete permanent swap on exit */
124 TRACE("VxD PageFile: supposed to delete swap\n");
125 RESET_CFLAG(context);
126 break;
127
128 case 0x03: /* current temporary swap file size */
129 TRACE("VxD PageFile: what is current temp. swap size\n");
130 RESET_CFLAG(context);
131 break;
132
133 case 0x04: /* read or write?? INTERRUP.D */
134 case 0x05: /* cancel?? INTERRUP.D */
135 case 0x06: /* test I/O valid INTERRUP.D */
136 default:
137 VXD_BARF( context, "pagefile" );
138 break;
139 }
140 }
141
142 /***********************************************************************
143 * VXD_Reboot (WPROCS.409)
144 */
145 void WINAPI VXD_Reboot ( CONTEXT86 *context )
146 {
147 unsigned service = AX_reg(context);
148
149 TRACE("[%04x] Reboot\n", (UINT16)service);
150
151 switch(service)
152 {
153 case 0x0000: /* version */
154 SET_AX( context, VXD_WinVersion() );
155 RESET_CFLAG(context);
156 break;
157
158 default:
159 VXD_BARF( context, "REBOOT" );
160 }
161 }
162
163 /***********************************************************************
164 * VXD_VDD (WPROCS.410)
165 */
166 void WINAPI VXD_VDD ( CONTEXT86 *context )
167 {
168 unsigned service = AX_reg(context);
169
170 TRACE("[%04x] VDD\n", (UINT16)service);
171
172 switch(service)
173 {
174 case 0x0000: /* version */
175 SET_AX( context, VXD_WinVersion() );
176 RESET_CFLAG(context);
177 break;
178
179 default:
180 VXD_BARF( context, "VDD" );
181 }
182 }
183
184 /***********************************************************************
185 * VXD_VMD (WPROCS.412)
186 */
187 void WINAPI VXD_VMD ( CONTEXT86 *context )
188 {
189 unsigned service = AX_reg(context);
190
191 TRACE("[%04x] VMD\n", (UINT16)service);
192
193 switch(service)
194 {
195 case 0x0000: /* version */
196 SET_AX( context, VXD_WinVersion() );
197 RESET_CFLAG(context);
198 break;
199
200 default:
201 VXD_BARF( context, "VMD" );
202 }
203 }
204
205 /***********************************************************************
206 * VXD_VXDLoader (WPROCS.439)
207 */
208 void WINAPI VXD_VXDLoader( CONTEXT86 *context )
209 {
210 unsigned service = AX_reg(context);
211
212 TRACE("[%04x] VXDLoader\n", (UINT16)service);
213
214 switch (service)
215 {
216 case 0x0000: /* get version */
217 TRACE("returning version\n");
218 SET_AX( context, 0x0000 );
219 SET_DX( context, VXD_WinVersion() );
220 RESET_CFLAG(context);
221 break;
222
223 case 0x0001: /* load device */
224 FIXME("load device %04x:%04x (%s)\n",
225 context->SegDs, DX_reg(context),
226 debugstr_a(MapSL(MAKESEGPTR(context->SegDs, DX_reg(context)))));
227 SET_AX( context, 0x0000 );
228 context->SegEs = 0x0000;
229 SET_DI( context, 0x0000 );
230 RESET_CFLAG(context);
231 break;
232
233 case 0x0002: /* unload device */
234 FIXME("unload device (%08x)\n", context->Ebx);
235 SET_AX( context, 0x0000 );
236 RESET_CFLAG(context);
237 break;
238
239 default:
240 VXD_BARF( context, "VXDLDR" );
241 SET_AX( context, 0x000B ); /* invalid function number */
242 SET_CFLAG(context);
243 break;
244 }
245 }
246
247 /***********************************************************************
248 * VXD_Shell (WPROCS.423)
249 */
250 void WINAPI VXD_Shell( CONTEXT86 *context )
251 {
252 unsigned service = DX_reg(context);
253
254 TRACE("[%04x] Shell\n", (UINT16)service);
255
256 switch (service) /* Ralf Brown says EDX, but I use DX instead */
257 {
258 case 0x0000:
259 TRACE("returning version\n");
260 SET_AX( context, VXD_WinVersion() );
261 context->Ebx = 1; /* system VM Handle */
262 break;
263
264 case 0x0001:
265 case 0x0002:
266 case 0x0003:
267 /* SHELL_SYSMODAL_Message
268 ebx virtual maschine handle
269 eax message box flags
270 ecx address of message
271 edi address of caption
272 return response in eax
273 */
274 case 0x0004:
275 /* SHELL_Message
276 ebx virtual maschine handle
277 eax message box flags
278 ecx address of message
279 edi address of caption
280 esi address callback
281 edx reference data for callback
282 return response in eax
283 */
284 case 0x0005:
285 VXD_BARF( context, "shell" );
286 break;
287
288 case 0x0006: /* SHELL_Get_VM_State */
289 TRACE("VxD Shell: returning VM state\n");
290 /* Actually we don't, not yet. We have to return a structure
291 * and I am not to sure how to set it up and return it yet,
292 * so for now let's do nothing. I can (hopefully) get this
293 * by the next release
294 */
295 /* RESET_CFLAG(context); */
296 break;
297
298 case 0x0007:
299 case 0x0008:
300 case 0x0009:
301 case 0x000A:
302 case 0x000B:
303 case 0x000C:
304 case 0x000D:
305 case 0x000E:
306 case 0x000F:
307 case 0x0010:
308 case 0x0011:
309 case 0x0012:
310 case 0x0013:
311 case 0x0014:
312 case 0x0015:
313 case 0x0016:
314 VXD_BARF( context, "SHELL" );
315 break;
316
317 /* the new Win95 shell API */
318 case 0x0100: /* get version */
319 SET_AX( context, VXD_WinVersion() );
320 break;
321
322 case 0x0104: /* retrieve Hook_Properties list */
323 case 0x0105: /* call Hook_Properties callbacks */
324 VXD_BARF( context, "SHELL" );
325 break;
326
327 case 0x0106: /* install timeout callback */
328 TRACE("VxD Shell: ignoring shell callback (%d sec.)\n", context->Ebx);
329 SET_CFLAG(context);
330 break;
331
332 case 0x0107: /* get version of any VxD */
333 default:
334 VXD_BARF( context, "SHELL" );
335 break;
336 }
337 }
338
339
340 /***********************************************************************
341 * VXD_Comm (WPROCS.414)
342 */
343 void WINAPI VXD_Comm( CONTEXT86 *context )
344 {
345 unsigned service = AX_reg(context);
346
347 TRACE("[%04x] Comm\n", (UINT16)service);
348
349 switch (service)
350 {
351 case 0x0000: /* get version */
352 TRACE("returning version\n");
353 SET_AX( context, VXD_WinVersion() );
354 RESET_CFLAG(context);
355 break;
356
357 case 0x0001: /* set port global */
358 case 0x0002: /* get focus */
359 case 0x0003: /* virtualise port */
360 default:
361 VXD_BARF( context, "comm" );
362 }
363 }
364
365 /***********************************************************************
366 * VXD_Timer (WPROCS.405)
367 */
368 void WINAPI VXD_Timer( CONTEXT86 *context )
369 {
370 unsigned service = AX_reg(context);
371
372 TRACE("[%04x] Virtual Timer\n", (UINT16)service);
373
374 switch(service)
375 {
376 case 0x0000: /* version */
377 SET_AX( context, VXD_WinVersion() );
378 RESET_CFLAG(context);
379 break;
380
381 case 0x0100: /* clock tick time, in 840nsecs */
382 context->Eax = GetTickCount();
383
384 context->Edx = context->Eax >> 22;
385 context->Eax <<= 10; /* not very precise */
386 break;
387
388 case 0x0101: /* current Windows time, msecs */
389 case 0x0102: /* current VM time, msecs */
390 context->Eax = GetTickCount();
391 break;
392
393 default:
394 VXD_BARF( context, "VTD" );
395 }
396 }
397
398
399 /***********************************************************************
400 * timer_thread
401 */
402 static DWORD CALLBACK timer_thread( void *arg )
403 {
404 DWORD *system_time = arg;
405
406 for (;;)
407 {
408 *system_time = GetTickCount();
409 Sleep( 55 );
410 }
411 }
412
413
414 /***********************************************************************
415 * VXD_TimerAPI (WPROCS.1490)
416 */
417 void WINAPI VXD_TimerAPI ( CONTEXT86 *context )
418 {
419 static WORD System_Time_Selector;
420
421 unsigned service = AX_reg(context);
422
423 TRACE("[%04x] TimerAPI\n", (UINT16)service);
424
425 switch(service)
426 {
427 case 0x0000: /* version */
428 SET_AX( context, VXD_WinVersion() );
429 RESET_CFLAG(context);
430 break;
431
432 case 0x0009: /* get system time selector */
433 if ( !System_Time_Selector )
434 {
435 HANDLE16 handle = GlobalAlloc16( GMEM_FIXED, sizeof(DWORD) );
436 System_Time_Selector = handle | 7;
437 CloseHandle( CreateThread( NULL, 0, timer_thread, GlobalLock16(handle), 0, NULL ) );
438 }
439 SET_AX( context, System_Time_Selector );
440 RESET_CFLAG(context);
441 break;
442
443 default:
444 VXD_BARF( context, "VTDAPI" );
445 }
446 }
447
448 /***********************************************************************
449 * VXD_ConfigMG (WPROCS.451)
450 */
451 void WINAPI VXD_ConfigMG ( CONTEXT86 *context )
452 {
453 unsigned service = AX_reg(context);
454
455 TRACE("[%04x] ConfigMG\n", (UINT16)service);
456
457 switch(service)
458 {
459 case 0x0000: /* version */
460 SET_AX( context, VXD_WinVersion() );
461 RESET_CFLAG(context);
462 break;
463
464 default:
465 VXD_BARF( context, "CONFIGMG" );
466 }
467 }
468
469 /***********************************************************************
470 * VXD_Enable (WPROCS.455)
471 */
472 void WINAPI VXD_Enable ( CONTEXT86 *context )
473 {
474 unsigned service = AX_reg(context);
475
476 TRACE("[%04x] Enable\n", (UINT16)service);
477
478 switch(service)
479 {
480 case 0x0000: /* version */
481 SET_AX( context, VXD_WinVersion() );
482 RESET_CFLAG(context);
483 break;
484
485 default:
486 VXD_BARF( context, "ENABLE" );
487 }
488 }
489
490 /***********************************************************************
491 * VXD_APM (WPROCS.438)
492 */
493 void WINAPI VXD_APM ( CONTEXT86 *context )
494 {
495 unsigned service = AX_reg(context);
496
497 TRACE("[%04x] APM\n", (UINT16)service);
498
499 switch(service)
500 {
501 case 0x0000: /* version */
502 SET_AX( context, VXD_WinVersion() );
503 RESET_CFLAG(context);
504 break;
505
506 default:
507 VXD_BARF( context, "APM" );
508 }
509 }
510
511 /***********************************************************************
512 * VXD_Win32s (WPROCS.445)
513 *
514 * This is an implementation of the services of the Win32s VxD.
515 * Since official documentation of these does not seem to be available,
516 * certain arguments of some of the services remain unclear.
517 *
518 * FIXME: The following services are currently unimplemented:
519 * Exception handling (0x01, 0x1C)
520 * Debugger support (0x0C, 0x14, 0x17)
521 * Low-level memory access (0x02, 0x03, 0x0A, 0x0B)
522 * Memory Statistics (0x1B)
523 *
524 *
525 * We have a specific problem running Win32s on Linux (and probably also
526 * the other x86 unixes), since Win32s tries to allocate its main 'flat
527 * code/data segment' selectors with a base of 0xffff0000 (and limit 4GB).
528 * The rationale for this seems to be that they want one the one hand to
529 * be able to leave the Win 3.1 memory (starting with the main DOS memory)
530 * at linear address 0, but want at other hand to have offset 0 of the
531 * flat data/code segment point to an unmapped page (to catch NULL pointer
532 * accesses). Hence they allocate the flat segments with a base of 0xffff0000
533 * so that the Win 3.1 memory area at linear address zero shows up in the
534 * flat segments at offset 0x10000 (since linear addresses wrap around at
535 * 4GB). To compensate for that discrepancy between flat segment offsets
536 * and plain linear addresses, all flat pointers passed between the 32-bit
537 * and the 16-bit parts of Win32s are shifted by 0x10000 in the appropriate
538 * direction by the glue code (mainly) in W32SKRNL and WIN32S16.
539 *
540 * The problem for us is now that Linux does not allow a LDT selector with
541 * base 0xffff0000 to be created, since it would 'see' a part of the kernel
542 * address space. To address this problem we introduce *another* offset:
543 * We add 0x10000 to every linear address we get as an argument from Win32s.
544 * This means especially that the flat code/data selectors get actually
545 * allocated with base 0x0, so that flat offsets and (real) linear addresses
546 * do again agree! In fact, every call e.g. of a Win32s VxD service now
547 * has all pointer arguments (which are offsets in the flat data segement)
548 * first reduced by 0x10000 by the W32SKRNL glue code, and then again
549 * increased by 0x10000 by *our* code.
550 *
551 * Note that to keep everything consistent, this offset has to be applied by
552 * every Wine function that operates on 'linear addresses' passed to it by
553 * Win32s. Fortunately, since Win32s does not directly call any Wine 32-bit
554 * API routines, this affects only two locations: this VxD and the DPMI
555 * handler. (NOTE: Should any Win32s application pass a linear address to
556 * any routine apart from those, e.g. some other VxD handler, that code
557 * would have to take the offset into account as well!)
558 *
559 * The offset is set the first time any application calls the GetVersion()
560 * service of the Win32s VxD. (Note that the offset is never reset.)
561 *
562 */
563
564 void WINAPI VXD_Win32s( CONTEXT86 *context )
565 {
566 switch (AX_reg(context))
567 {
568 case 0x0000: /* Get Version */
569 /*
570 * Input: None
571 *
572 * Output: EAX: LoWord: Win32s Version (1.30)
573 * HiWord: VxD Version (200)
574 *
575 * EBX: Build (172)
576 *
577 * ECX: ??? (1)
578 *
579 * EDX: Debugging Flags
580 *
581 * EDI: Error Flag
582 * 0 if OK,
583 * 1 if VMCPD VxD not found
584 */
585
586 TRACE("GetVersion()\n");
587
588 context->Eax = VXD_WinVersion() | (200 << 16);
589 context->Ebx = 0;
590 context->Ecx = 0;
591 context->Edx = 0;
592 context->Edi = 0;
593
594 /*
595 * If this is the first time we are called for this process,
596 * hack the memory image of WIN32S16 so that it doesn't try
597 * to access the GDT directly ...
598 *
599 * The first code segment of WIN32S16 (version 1.30) contains
600 * an unexported function somewhere between the exported functions
601 * SetFS and StackLinearToSegmented that tries to find a selector
602 * in the LDT that maps to the memory image of the LDT itself.
603 * If it succeeds, it stores this selector into a global variable
604 * which will be used to speed up execution by using this selector
605 * to modify the LDT directly instead of using the DPMI calls.
606 *
607 * To perform this search of the LDT, this function uses the
608 * sgdt and sldt instructions to find the linear address of
609 * the (GDT and then) LDT. While those instructions themselves
610 * execute without problem, the linear address that sgdt returns
611 * points (at least under Linux) to the kernel address space, so
612 * that any subsequent access leads to a segfault.
613 *
614 * Fortunately, WIN32S16 still contains as a fallback option the
615 * mechanism of using DPMI calls to modify LDT selectors instead
616 * of direct writes to the LDT. Thus we can circumvent the problem
617 * by simply replacing the first byte of the offending function
618 * with an 'retf' instruction. This means that the global variable
619 * supposed to contain the LDT alias selector will remain zero,
620 * and hence WIN32S16 will fall back to using DPMI calls.
621 *
622 * The heuristic we employ to _find_ that function is as follows:
623 * We search between the addresses of the exported symbols SetFS
624 * and StackLinearToSegmented for the byte sequence '0F 01 04'
625 * (this is the opcode of 'sgdt [si]'). We then search backwards
626 * from this address for the last occurrence of 'CB' (retf) that marks
627 * the end of the preceding function. The following byte (which
628 * should now be the first byte of the function we are looking for)
629 * will be replaced by 'CB' (retf).
630 *
631 * This heuristic works for the retail as well as the debug version
632 * of Win32s version 1.30. For versions earlier than that this
633 * hack should not be necessary at all, since the whole mechanism
634 * ('PERF130') was introduced only in 1.30 to improve the overall
635 * performance of Win32s.
636 */
637
638 if (!W32S_offset)
639 {
640 HMODULE16 hModule = GetModuleHandle16("win32s16");
641 SEGPTR func1 = (SEGPTR)GetProcAddress16(hModule, "SetFS");
642 SEGPTR func2 = (SEGPTR)GetProcAddress16(hModule, "StackLinearToSegmented");
643
644 if ( hModule && func1 && func2
645 && SELECTOROF(func1) == SELECTOROF(func2))
646 {
647 BYTE *start = MapSL(func1);
648 BYTE *end = MapSL(func2);
649 BYTE *p, *retv = NULL;
650 int found = 0;
651
652 for (p = start; p < end; p++)
653 if (*p == 0xCB) found = 0, retv = p;
654 else if (*p == 0x0F) found = 1;
655 else if (*p == 0x01 && found == 1) found = 2;
656 else if (*p == 0x04 && found == 2) { found = 3; break; }
657 else found = 0;
658
659 if (found == 3 && retv)
660 {
661 TRACE("PERF130 hack: "
662 "Replacing byte %02X at offset %04X:%04X\n",
663 *(retv+1), SELECTOROF(func1),
664 OFFSETOF(func1) + retv+1-start);
665
666 *(retv+1) = (BYTE)0xCB;
667 }
668 }
669 }
670
671 /*
672 * Mark process as Win32s, so that subsequent DPMI calls
673 * will perform the W32S_APP2WINE/W32S_WINE2APP address shift.
674 */
675 W32S_offset = 0x10000;
676 break;
677
678
679 case 0x0001: /* Install Exception Handling */
680 /*
681 * Input: EBX: Flat address of W32SKRNL Exception Data
682 *
683 * ECX: LoWord: Flat Code Selector
684 * HiWord: Flat Data Selector
685 *
686 * EDX: Flat address of W32SKRNL Exception Handler
687 * (this is equal to W32S_BackTo32 + 0x40)
688 *
689 * ESI: SEGPTR KERNEL.HASGPHANDLER
690 *
691 * EDI: SEGPTR phCurrentTask (KERNEL.THHOOK + 0x10)
692 *
693 * Output: EAX: 0 if OK
694 */
695
696 TRACE("[0001] EBX=%x ECX=%x EDX=%x ESI=%x EDI=%x\n",
697 context->Ebx, context->Ecx, context->Edx,
698 context->Esi, context->Edi);
699
700 /* FIXME */
701
702 context->Eax = 0;
703 break;
704
705
706 case 0x0002: /* Set Page Access Flags */
707 /*
708 * Input: EBX: New access flags
709 * Bit 2: User Page if set, Supervisor Page if clear
710 * Bit 1: Read-Write if set, Read-Only if clear
711 *
712 * ECX: Size of memory area to change
713 *
714 * EDX: Flat start address of memory area
715 *
716 * Output: EAX: Size of area changed
717 */
718
719 TRACE("[0002] EBX=%x ECX=%x EDX=%x\n",
720 context->Ebx, context->Ecx, context->Edx);
721
722 /* FIXME */
723
724 context->Eax = context->Ecx;
725 break;
726
727
728 case 0x0003: /* Get Page Access Flags */
729 /*
730 * Input: EDX: Flat address of page to query
731 *
732 * Output: EAX: Page access flags
733 * Bit 2: User Page if set, Supervisor Page if clear
734 * Bit 1: Read-Write if set, Read-Only if clear
735 */
736
737 TRACE("[0003] EDX=%x\n", context->Edx);
738
739 /* FIXME */
740
741 context->Eax = 6;
742 break;
743
744
745 case 0x0004: /* Map Module */
746 /*
747 * Input: ECX: IMTE (offset in Module Table) of new module
748 *
749 * EDX: Flat address of Win32s Module Table
750 *
751 * Output: EAX: 0 if OK
752 */
753
754 if (!context->Edx || CX_reg(context) == 0xFFFF)
755 {
756 TRACE("MapModule: Initialization call\n");
757 context->Eax = 0;
758 }
759 else
760 {
761 /*
762 * Structure of a Win32s Module Table Entry:
763 */
764 struct Win32sModule
765 {
766 DWORD flags;
767 DWORD flatBaseAddr;
768 LPCSTR moduleName;
769 LPCSTR pathName;
770 LPCSTR unknown;
771 LPBYTE baseAddr;
772 DWORD hModule;
773 DWORD relocDelta;
774 };
775
776 /*
777 * Note: This function should set up a demand-paged memory image
778 * of the given module. Since mmap does not allow file offsets
779 * not aligned at 1024 bytes, we simply load the image fully
780 * into memory.
781 */
782
783 struct Win32sModule *moduleTable =
784 (struct Win32sModule *)W32S_APP2WINE(context->Edx);
785 struct Win32sModule *module = moduleTable + context->Ecx;
786
787 IMAGE_NT_HEADERS *nt_header = RtlImageNtHeader( (HMODULE)module->baseAddr );
788 IMAGE_SECTION_HEADER *pe_seg = (IMAGE_SECTION_HEADER*)((char *)&nt_header->OptionalHeader +
789 nt_header->FileHeader.SizeOfOptionalHeader);
790
791
792 HFILE image = _lopen(module->pathName, OF_READ);
793 BOOL error = (image == HFILE_ERROR);
794 UINT i;
795
796 TRACE("MapModule: Loading %s\n", module->pathName);
797
798 for (i = 0;
799 !error && i < nt_header->FileHeader.NumberOfSections;
800 i++, pe_seg++)
801 if(!(pe_seg->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA))
802 {
803 DWORD off = pe_seg->PointerToRawData;
804 DWORD len = pe_seg->SizeOfRawData;
805 LPBYTE addr = module->baseAddr + pe_seg->VirtualAddress;
806
807 TRACE("MapModule: "
808 "Section %d at %08x from %08x len %08x\n",
809 i, (DWORD)addr, off, len);
810
811 if ( _llseek(image, off, SEEK_SET) != off
812 || _lread(image, addr, len) != len)
813 error = TRUE;
814 }
815
816 _lclose(image);
817
818 if (error)
819 ERR("MapModule: Unable to load %s\n", module->pathName);
820
821 else if (module->relocDelta != 0)
822 {
823 IMAGE_DATA_DIRECTORY *dir = nt_header->OptionalHeader.DataDirectory
824 + IMAGE_DIRECTORY_ENTRY_BASERELOC;
825 IMAGE_BASE_RELOCATION *r = (IMAGE_BASE_RELOCATION *)
826 (dir->Size? module->baseAddr + dir->VirtualAddress : 0);
827
828 TRACE("MapModule: Reloc delta %08x\n", module->relocDelta);
829
830 while (r && r->VirtualAddress)
831 {
832 LPBYTE page = module->baseAddr + r->VirtualAddress;
833 WORD *TypeOffset = (WORD *)(r + 1);
834 unsigned int count = (r->SizeOfBlock - sizeof(*r)) / sizeof(*TypeOffset);
835
836 TRACE("MapModule: %d relocations for page %08x\n",
837 count, (DWORD)page);
838
839 for(i = 0; i < count; i++)
840 {
841 int offset = TypeOffset[i] & 0xFFF;
842 int type = TypeOffset[i] >> 12;
843 switch(type)
844 {
845 case IMAGE_REL_BASED_ABSOLUTE:
846 break;
847 case IMAGE_REL_BASED_HIGH:
848 *(WORD *)(page+offset) += HIWORD(module->relocDelta);
849 break;
850 case IMAGE_REL_BASED_LOW:
851 *(WORD *)(page+offset) += LOWORD(module->relocDelta);
852 break;
853 case IMAGE_REL_BASED_HIGHLOW:
854 *(DWORD*)(page+offset) += module->relocDelta;
855 break;
856 default:
857 WARN("MapModule: Unsupported fixup type\n");
858 break;
859 }
860 }
861
862 r = (IMAGE_BASE_RELOCATION *)((LPBYTE)r + r->SizeOfBlock);
863 }
864 }
865
866 context->Eax = 0;
867 RESET_CFLAG(context);
868 }
869 break;
870
871
872 case 0x0005: /* UnMap Module */
873 /*
874 * Input: EDX: Flat address of module image
875 *
876 * Output: EAX: 1 if OK
877 */
878
879 TRACE("UnMapModule: %x\n", (DWORD)W32S_APP2WINE(context->Edx));
880
881 /* As we didn't map anything, there's nothing to unmap ... */
882
883 context->Eax = 1;
884 break;
885
886
887 case 0x0006: /* VirtualAlloc */
888 /*
889 * Input: ECX: Current Process
890 *
891 * EDX: Flat address of arguments on stack
892 *
893 * DWORD *retv [out] Flat base address of allocated region
894 * LPVOID base [in] Flat address of region to reserve/commit
895 * DWORD size [in] Size of region
896 * DWORD type [in] Type of allocation
897 * DWORD prot [in] Type of access protection
898 *
899 * Output: EAX: NtStatus
900 */
901 {
902 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
903 DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0]);
904 LPVOID base = (LPVOID) W32S_APP2WINE(stack[1]);
905 DWORD size = stack[2];
906 DWORD type = stack[3];
907 DWORD prot = stack[4];
908 DWORD result;
909
910 TRACE("VirtualAlloc(%x, %x, %x, %x, %x)\n",
911 (DWORD)retv, (DWORD)base, size, type, prot);
912
913 if (type & 0x80000000)
914 {
915 WARN("VirtualAlloc: strange type %x\n", type);
916 type &= 0x7fffffff;
917 }
918
919 if (!base && (type & MEM_COMMIT) && prot == PAGE_READONLY)
920 {
921 WARN("VirtualAlloc: NLS hack, allowing write access!\n");
922 prot = PAGE_READWRITE;
923 }
924
925 result = (DWORD)VirtualAlloc(base, size, type, prot);
926
927 if (W32S_WINE2APP(result))
928 *retv = W32S_WINE2APP(result),
929 context->Eax = STATUS_SUCCESS;
930 else
931 *retv = 0,
932 context->Eax = STATUS_NO_MEMORY; /* FIXME */
933 }
934 break;
935
936
937 case 0x0007: /* VirtualFree */
938 /*
939 * Input: ECX: Current Process
940 *
941 * EDX: Flat address of arguments on stack
942 *
943 * DWORD *retv [out] TRUE if success, FALSE if failure
944 * LPVOID base [in] Flat address of region
945 * DWORD size [in] Size of region
946 * DWORD type [in] Type of operation
947 *
948 * Output: EAX: NtStatus
949 */
950 {
951 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
952 DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0]);
953 LPVOID base = (LPVOID) W32S_APP2WINE(stack[1]);
954 DWORD size = stack[2];
955 DWORD type = stack[3];
956 DWORD result;
957
958 TRACE("VirtualFree(%x, %x, %x, %x)\n",
959 (DWORD)retv, (DWORD)base, size, type);
960
961 result = VirtualFree(base, size, type);
962
963 if (result)
964 *retv = TRUE,
965 context->Eax = STATUS_SUCCESS;
966 else
967 *retv = FALSE,
968 context->Eax = STATUS_NO_MEMORY; /* FIXME */
969 }
970 break;
971
972
973 case 0x0008: /* VirtualProtect */
974 /*
975 * Input: ECX: Current Process
976 *
977 * EDX: Flat address of arguments on stack
978 *
979 * DWORD *retv [out] TRUE if success, FALSE if failure
980 * LPVOID base [in] Flat address of region
981 * DWORD size [in] Size of region
982 * DWORD new_prot [in] Desired access protection
983 * DWORD *old_prot [out] Previous access protection
984 *
985 * Output: EAX: NtStatus
986 */
987 {
988 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
989 DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0]);
990 LPVOID base = (LPVOID) W32S_APP2WINE(stack[1]);
991 DWORD size = stack[2];
992 DWORD new_prot = stack[3];
993 DWORD *old_prot = (DWORD *)W32S_APP2WINE(stack[4]);
994 DWORD result;
995
996 TRACE("VirtualProtect(%x, %x, %x, %x, %x)\n",
997 (DWORD)retv, (DWORD)base, size, new_prot, (DWORD)old_prot);
998
999 result = VirtualProtect(base, size, new_prot, old_prot);
1000
1001 if (result)
1002 *retv = TRUE,
1003 context->Eax = STATUS_SUCCESS;
1004 else
1005 *retv = FALSE,
1006 context->Eax = STATUS_NO_MEMORY; /* FIXME */
1007 }
1008 break;
1009
1010
1011 case 0x0009: /* VirtualQuery */
1012 /*
1013 * Input: ECX: Current Process
1014 *
1015 * EDX: Flat address of arguments on stack
1016 *
1017 * DWORD *retv [out] Nr. bytes returned
1018 * LPVOID base [in] Flat address of region
1019 * LPMEMORY_BASIC_INFORMATION info [out] Info buffer
1020 * DWORD len [in] Size of buffer
1021 *
1022 * Output: EAX: NtStatus
1023 */
1024 {
1025 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
1026 DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0]);
1027 LPVOID base = (LPVOID) W32S_APP2WINE(stack[1]);
1028 PMEMORY_BASIC_INFORMATION info =
1029 (PMEMORY_BASIC_INFORMATION)W32S_APP2WINE(stack[2]);
1030 DWORD len = stack[3];
1031 DWORD result;
1032
1033 TRACE("VirtualQuery(%x, %x, %x, %x)\n",
1034 (DWORD)retv, (DWORD)base, (DWORD)info, len);
1035
1036 result = VirtualQuery(base, info, len);
1037
1038 *retv = result;
1039 context->Eax = STATUS_SUCCESS;
1040 }
1041 break;
1042
1043
1044 case 0x000A: /* SetVirtMemProcess */
1045 /*
1046 * Input: ECX: Process Handle
1047 *
1048 * EDX: Flat address of region
1049 *
1050 * Output: EAX: NtStatus
1051 */
1052
1053 TRACE("[000a] ECX=%x EDX=%x\n",
1054 context->Ecx, context->Edx);
1055
1056 /* FIXME */
1057
1058 context->Eax = STATUS_SUCCESS;
1059 break;
1060
1061
1062 case 0x000B: /* ??? some kind of cleanup */
1063 /*
1064 * Input: ECX: Process Handle
1065 *
1066 * Output: EAX: NtStatus
1067 */
1068
1069 TRACE("[000b] ECX=%x\n", context->Ecx);
1070
1071 /* FIXME */
1072
1073 context->Eax = STATUS_SUCCESS;
1074 break;
1075
1076
1077 case 0x000C: /* Set Debug Flags */
1078 /*
1079 * Input: EDX: Debug Flags
1080 *
1081 * Output: EDX: Previous Debug Flags
1082 */
1083
1084 FIXME("[000c] EDX=%x\n", context->Edx);
1085
1086 /* FIXME */
1087
1088 context->Edx = 0;
1089 break;
1090
1091
1092 case 0x000D: /* NtCreateSection */
1093 /*
1094 * Input: EDX: Flat address of arguments on stack
1095 *
1096 * HANDLE32 *retv [out] Handle of Section created
1097 * DWORD flags1 [in] (?? unknown ??)
1098 * DWORD atom [in] Name of Section to create
1099 * LARGE_INTEGER *size [in] Size of Section
1100 * DWORD protect [in] Access protection
1101 * DWORD flags2 [in] (?? unknown ??)
1102 * HFILE32 hFile [in] Handle of file to map
1103 * DWORD psp [in] (Win32s: PSP that hFile belongs to)
1104 *
1105 * Output: EAX: NtStatus
1106 */
1107 {
1108 DWORD *stack = (DWORD *) W32S_APP2WINE(context->Edx);
1109 HANDLE *retv = (HANDLE *)W32S_APP2WINE(stack[0]);
1110 DWORD flags1 = stack[1];
1111 DWORD atom = stack[2];
1112 LARGE_INTEGER *size = (LARGE_INTEGER *)W32S_APP2WINE(stack[3]);
1113 DWORD protect = stack[4];
1114 DWORD flags2 = stack[5];
1115 HANDLE hFile = DosFileHandleToWin32Handle(stack[6]);
1116 DWORD psp = stack[7];
1117
1118 HANDLE result = INVALID_HANDLE_VALUE;
1119 char name[128];
1120
1121 TRACE("NtCreateSection(%x, %x, %x, %x, %x, %x, %x, %x)\n",
1122 (DWORD)retv, flags1, atom, (DWORD)size, protect, flags2,
1123 (DWORD)hFile, psp);
1124
1125 if (!atom || GlobalGetAtomNameA(atom, name, sizeof(name)))
1126 {
1127 TRACE("NtCreateSection: name=%s\n", atom? name : NULL);
1128
1129 result = CreateFileMappingA(hFile, NULL, protect,
1130 size? size->u.HighPart : 0,
1131 size? size->u.LowPart : 0,
1132 atom? name : NULL);
1133 }
1134
1135 if (result == INVALID_HANDLE_VALUE)
1136 WARN("NtCreateSection: failed!\n");
1137 else
1138 TRACE("NtCreateSection: returned %x\n", (DWORD)result);
1139
1140 if (result != INVALID_HANDLE_VALUE)
1141 *retv = result,
1142 context->Eax = STATUS_SUCCESS;
1143 else
1144 *retv = result,
1145 context->Eax = STATUS_NO_MEMORY; /* FIXME */
1146 }
1147 break;
1148
1149
1150 case 0x000E: /* NtOpenSection */
1151 /*
1152 * Input: EDX: Flat address of arguments on stack
1153 *
1154 * HANDLE32 *retv [out] Handle of Section opened
1155 * DWORD protect [in] Access protection
1156 * DWORD atom [in] Name of Section to create
1157 *
1158 * Output: EAX: NtStatus
1159 */
1160 {
1161 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
1162 HANDLE *retv = (HANDLE *)W32S_APP2WINE(stack[0]);
1163 DWORD protect = stack[1];
1164 DWORD atom = stack[2];
1165
1166 HANDLE result = INVALID_HANDLE_VALUE;
1167 char name[128];
1168
1169 TRACE("NtOpenSection(%x, %x, %x)\n",
1170 (DWORD)retv, protect, atom);
1171
1172 if (atom && GlobalGetAtomNameA(atom, name, sizeof(name)))
1173 {
1174 TRACE("NtOpenSection: name=%s\n", name);
1175
1176 result = OpenFileMappingA(protect, FALSE, name);
1177 }
1178
1179 if (result == INVALID_HANDLE_VALUE)
1180 WARN("NtOpenSection: failed!\n");
1181 else
1182 TRACE("NtOpenSection: returned %x\n", (DWORD)result);
1183
1184 if (result != INVALID_HANDLE_VALUE)
1185 *retv = result,
1186 context->Eax = STATUS_SUCCESS;
1187 else
1188 *retv = result,
1189 context->Eax = STATUS_NO_MEMORY; /* FIXME */
1190 }
1191 break;
1192
1193
1194 case 0x000F: /* NtCloseSection */
1195 /*
1196 * Input: EDX: Flat address of arguments on stack
1197 *
1198 * HANDLE32 handle [in] Handle of Section to close
1199 * DWORD *id [out] Unique ID (?? unclear ??)
1200 *
1201 * Output: EAX: NtStatus
1202 */
1203 {
1204 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
1205 HANDLE handle = (HANDLE)stack[0];
1206 DWORD *id = (DWORD *)W32S_APP2WINE(stack[1]);
1207
1208 TRACE("NtCloseSection(%x, %x)\n", (DWORD)handle, (DWORD)id);
1209
1210 CloseHandle(handle);
1211 if (id) *id = 0; /* FIXME */
1212
1213 context->Eax = STATUS_SUCCESS;
1214 }
1215 break;
1216
1217
1218 case 0x0010: /* NtDupSection */
1219 /*
1220 * Input: EDX: Flat address of arguments on stack
1221 *
1222 * HANDLE32 handle [in] Handle of Section to duplicate
1223 *
1224 * Output: EAX: NtStatus
1225 */
1226 {
1227 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
1228 HANDLE handle = (HANDLE)stack[0];
1229 HANDLE new_handle;
1230
1231 TRACE("NtDupSection(%x)\n", (DWORD)handle);
1232
1233 DuplicateHandle( GetCurrentProcess(), handle,
1234 GetCurrentProcess(), &new_handle,
1235 0, FALSE, DUPLICATE_SAME_ACCESS );
1236 context->Eax = STATUS_SUCCESS;
1237 }
1238 break;
1239
1240
1241 case 0x0011: /* NtMapViewOfSection */
1242 /*
1243 * Input: EDX: Flat address of arguments on stack
1244 *
1245 * HANDLE32 SectionHandle [in] Section to be mapped
1246 * DWORD ProcessHandle [in] Process to be mapped into
1247 * DWORD * BaseAddress [in/out] Address to be mapped at
1248 * DWORD ZeroBits [in] (?? unclear ??)
1249 * DWORD CommitSize [in] (?? unclear ??)
1250 * LARGE_INTEGER *SectionOffset [in] Offset within section
1251 * DWORD * ViewSize [in] Size of view
1252 * DWORD InheritDisposition [in] (?? unclear ??)
1253 * DWORD AllocationType [in] (?? unclear ??)
1254 * DWORD Protect [in] Access protection
1255 *
1256 * Output: EAX: NtStatus
1257 */
1258 {
1259 DWORD * stack = (DWORD *)W32S_APP2WINE(context->Edx);
1260 HANDLE SectionHandle = (HANDLE)stack[0];
1261 DWORD ProcessHandle = stack[1]; /* ignored */
1262 DWORD * BaseAddress = (DWORD *)W32S_APP2WINE(stack[2]);
1263 DWORD ZeroBits = stack[3];
1264 DWORD CommitSize = stack[4];
1265 LARGE_INTEGER *SectionOffset = (LARGE_INTEGER *)W32S_APP2WINE(stack[5]);
1266 DWORD * ViewSize = (DWORD *)W32S_APP2WINE(stack[6]);
1267 DWORD InheritDisposition = stack[7];
1268 DWORD AllocationType = stack[8];
1269 DWORD Protect = stack[9];
1270
1271 LPBYTE address = (LPBYTE)(BaseAddress?
1272 W32S_APP2WINE(*BaseAddress) : 0);
1273 DWORD access = 0, result;
1274
1275 switch (Protect & ~(PAGE_GUARD|PAGE_NOCACHE))
1276 {
1277 case PAGE_READONLY: access = FILE_MAP_READ; break;
1278 case PAGE_READWRITE: access = FILE_MAP_WRITE; break;
1279 case PAGE_WRITECOPY: access = FILE_MAP_COPY; break;
1280
1281 case PAGE_EXECUTE_READ: access = FILE_MAP_READ; break;
1282 case PAGE_EXECUTE_READWRITE: access = FILE_MAP_WRITE; break;
1283 case PAGE_EXECUTE_WRITECOPY: access = FILE_MAP_COPY; break;
1284 }
1285
1286 TRACE("NtMapViewOfSection"
1287 "(%x, %x, %x, %x, %x, %x, %x, %x, %x, %x)\n",
1288 (DWORD)SectionHandle, ProcessHandle, (DWORD)BaseAddress,
1289 ZeroBits, CommitSize, (DWORD)SectionOffset, (DWORD)ViewSize,
1290 InheritDisposition, AllocationType, Protect);
1291 TRACE("NtMapViewOfSection: "
1292 "base=%x, offset=%x, size=%x, access=%x\n",
1293 (DWORD)address, SectionOffset? SectionOffset->u.LowPart : 0,
1294 ViewSize? *ViewSize : 0, access);
1295
1296 result = (DWORD)MapViewOfFileEx(SectionHandle, access,
1297 SectionOffset? SectionOffset->u.HighPart : 0,
1298 SectionOffset? SectionOffset->u.LowPart : 0,
1299 ViewSize? *ViewSize : 0, address);
1300
1301 TRACE("NtMapViewOfSection: result=%x\n", result);
1302
1303 if (W32S_WINE2APP(result))
1304 {
1305 if (BaseAddress) *BaseAddress = W32S_WINE2APP(result);
1306 context->Eax = STATUS_SUCCESS;
1307 }
1308 else
1309 context->Eax = STATUS_NO_MEMORY; /* FIXME */
1310 }
1311 break;
1312
1313
1314 case 0x0012: /* NtUnmapViewOfSection */
1315 /*
1316 * Input: EDX: Flat address of arguments on stack
1317 *
1318 * DWORD ProcessHandle [in] Process (defining address space)
1319 * LPBYTE BaseAddress [in] Base address of view to be unmapped
1320 *
1321 * Output: EAX: NtStatus
1322 */
1323 {
1324 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
1325 DWORD ProcessHandle = stack[0]; /* ignored */
1326 LPBYTE BaseAddress = (LPBYTE)W32S_APP2WINE(stack[1]);
1327
1328 TRACE("NtUnmapViewOfSection(%x, %x)\n",
1329 ProcessHandle, (DWORD)BaseAddress);
1330
1331 UnmapViewOfFile(BaseAddress);
1332
1333 context->Eax = STATUS_SUCCESS;
1334 }
1335 break;
1336
1337
1338 case 0x0013: /* NtFlushVirtualMemory */
1339 /*
1340 * Input: EDX: Flat address of arguments on stack
1341 *
1342 * DWORD ProcessHandle [in] Process (defining address space)
1343 * LPBYTE *BaseAddress [in?] Base address of range to be flushed
1344 * DWORD *ViewSize [in?] Number of bytes to be flushed
1345 * DWORD *unknown [???] (?? unknown ??)
1346 *
1347 * Output: EAX: NtStatus
1348 */
1349 {
1350 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
1351 DWORD ProcessHandle = stack[0]; /* ignored */
1352 DWORD *BaseAddress = (DWORD *)W32S_APP2WINE(stack[1]);
1353 DWORD *ViewSize = (DWORD *)W32S_APP2WINE(stack[2]);
1354 DWORD *unknown = (DWORD *)W32S_APP2WINE(stack[3]);
1355
1356 LPBYTE address = (LPBYTE)(BaseAddress? W32S_APP2WINE(*BaseAddress) : 0);
1357 DWORD size = ViewSize? *ViewSize : 0;
1358
1359 TRACE("NtFlushVirtualMemory(%x, %x, %x, %x)\n",
1360 ProcessHandle, (DWORD)BaseAddress, (DWORD)ViewSize,
1361 (DWORD)unknown);
1362 TRACE("NtFlushVirtualMemory: base=%x, size=%x\n",
1363 (DWORD)address, size);
1364
1365 FlushViewOfFile(address, size);
1366
1367 context->Eax = STATUS_SUCCESS;
1368 }
1369 break;
1370
1371
1372 case 0x0014: /* Get/Set Debug Registers */
1373 /*
1374 * Input: ECX: 0 if Get, 1 if Set
1375 *
1376 * EDX: Get: Flat address of buffer to receive values of
1377 * debug registers DR0 .. DR7
1378 * Set: Flat address of buffer containing values of
1379 * debug registers DR0 .. DR7 to be set
1380 * Output: None
1381 */
1382
1383 FIXME("[0014] ECX=%x EDX=%x\n",
1384 context->Ecx, context->Edx);
1385
1386 /* FIXME */
1387 break;
1388
1389
1390 case 0x0015: /* Set Coprocessor Emulation Flag */
1391 /*
1392 * Input: EDX: 0 to deactivate, 1 to activate coprocessor emulation
1393 *
1394 * Output: None
1395 */
1396
1397 TRACE("[0015] EDX=%x\n", context->Edx);
1398
1399 /* We don't care, as we always have a coprocessor anyway */
1400 break;
1401
1402
1403 case 0x0016: /* Init Win32S VxD PSP */
1404 /*
1405 * If called to query required PSP size:
1406 *
1407 * Input: EBX: 0
1408 * Output: EDX: Required size of Win32s VxD PSP
1409 *
1410 * If called to initialize allocated PSP:
1411 *
1412 * Input: EBX: LoWord: Selector of Win32s VxD PSP
1413 * HiWord: Paragraph of Win32s VxD PSP (DOSMEM)
1414 * Output: None
1415 */
1416
1417 if (context->Ebx == 0)
1418 context->Edx = 0x80;
1419 else
1420 {
1421 PDB16 *psp = MapSL( MAKESEGPTR( BX_reg(context), 0 ));
1422 psp->nbFiles = 32;
1423 psp->fileHandlesPtr = MAKELONG(HIWORD(context->Ebx), 0x5c);
1424 memset((LPBYTE)psp + 0x5c, '\xFF', 32);
1425 }
1426 break;
1427
1428
1429 case 0x0017: /* Set Break Point */
1430 /*
1431 * Input: EBX: Offset of Break Point
1432 * CX: Selector of Break Point
1433 *
1434 * Output: None
1435 */
1436
1437 FIXME("[0017] EBX=%x CX=%x\n",
1438 context->Ebx, CX_reg(context));
1439
1440 /* FIXME */
1441 break;
1442
1443
1444 case 0x0018: /* VirtualLock */
1445 /*
1446 * Input: ECX: Current Process
1447 *
1448 * EDX: Flat address of arguments on stack
1449 *
1450 * DWORD *retv [out] TRUE if success, FALSE if failure
1451 * LPVOID base [in] Flat address of range to lock
1452 * DWORD size [in] Size of range
1453 *
1454 * Output: EAX: NtStatus
1455 */
1456 {
1457 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
1458 DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0]);
1459 LPVOID base = (LPVOID) W32S_APP2WINE(stack[1]);
1460 DWORD size = stack[2];
1461 DWORD result;
1462
1463 TRACE("VirtualLock(%x, %x, %x)\n",
1464 (DWORD)retv, (DWORD)base, size);
1465
1466 result = VirtualLock(base, size);
1467
1468 if (result)
1469 *retv = TRUE,
1470 context->Eax = STATUS_SUCCESS;
1471 else
1472 *retv = FALSE,
1473 context->Eax = STATUS_NO_MEMORY; /* FIXME */
1474 }
1475 break;
1476
1477
1478 case 0x0019: /* VirtualUnlock */
1479 /*
1480 * Input: ECX: Current Process
1481 *
1482 * EDX: Flat address of arguments on stack
1483 *
1484 * DWORD *retv [out] TRUE if success, FALSE if failure
1485 * LPVOID base [in] Flat address of range to unlock
1486 * DWORD size [in] Size of range
1487 *
1488 * Output: EAX: NtStatus
1489 */
1490 {
1491 DWORD *stack = (DWORD *)W32S_APP2WINE(context->Edx);
1492 DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0]);
1493 LPVOID base = (LPVOID) W32S_APP2WINE(stack[1]);
1494 DWORD size = stack[2];
1495 DWORD result;
1496
1497 TRACE("VirtualUnlock(%x, %x, %x)\n",
1498 (DWORD)retv, (DWORD)base, size);
1499
1500 result = VirtualUnlock(base, size);
1501
1502 if (result)
1503 *retv = TRUE,
1504 context->Eax = STATUS_SUCCESS;
1505 else
1506 *retv = FALSE,
1507 context->Eax = STATUS_NO_MEMORY; /* FIXME */
1508 }
1509 break;
1510
1511
1512 case 0x001A: /* KGetSystemInfo */
1513 /*
1514 * Input: None
1515 *
1516 * Output: ECX: Start of sparse memory arena
1517 * EDX: End of sparse memory arena
1518 */
1519
1520 TRACE("KGetSystemInfo()\n");
1521
1522 /*
1523 * Note: Win32s reserves 0GB - 2GB for Win 3.1 and uses 2GB - 4GB as
1524 * sparse memory arena. We do it the other way around, since
1525 * we have to reserve 3GB - 4GB for Linux, and thus use
1526 * 0GB - 3GB as sparse memory arena.
1527 *
1528 * FIXME: What about other OSes ?
1529 */
1530
1531 context->Ecx = W32S_WINE2APP(0x00000000);
1532 context->Edx = W32S_WINE2APP(0xbfffffff);
1533 break;
1534
1535
1536 case 0x001B: /* KGlobalMemStat */
1537 /*
1538 * Input: ESI: Flat address of buffer to receive memory info
1539 *
1540 * Output: None
1541 */
1542 {
1543 struct Win32sMemoryInfo
1544 {
1545 DWORD DIPhys_Count; /* Total physical pages */
1546 DWORD DIFree_Count; /* Free physical pages */
1547 DWORD DILin_Total_Count; /* Total virtual pages (private arena) */
1548 DWORD DILin_Total_Free; /* Free virtual pages (private arena) */
1549
1550 DWORD SparseTotal; /* Total size of sparse arena (bytes ?) */
1551 DWORD SparseFree; /* Free size of sparse arena (bytes ?) */
1552 };
1553
1554 struct Win32sMemoryInfo *info =
1555 (struct Win32sMemoryInfo *)W32S_APP2WINE(context->Esi);
1556
1557 FIXME("KGlobalMemStat(%x)\n", (DWORD)info);
1558
1559 /* FIXME */
1560 }
1561 break;
1562
1563
1564 case 0x001C: /* Enable/Disable Exceptions */
1565 /*
1566 * Input: ECX: 0 to disable, 1 to enable exception handling
1567 *
1568 * Output: None
1569 */
1570
1571 TRACE("[001c] ECX=%x\n", context->Ecx);
1572
1573 /* FIXME */
1574 break;
1575
1576
1577 case 0x001D: /* VirtualAlloc called from 16-bit code */
1578 /*
1579 * Input: EDX: Segmented address of arguments on stack
1580 *
1581 * LPVOID base [in] Flat address of region to reserve/commit
1582 * DWORD size [in] Size of region
1583 * DWORD type [in] Type of allocation
1584 * DWORD prot [in] Type of access protection
1585 *
1586 * Output: EAX: NtStatus
1587 * EDX: Flat base address of allocated region
1588 */
1589 {
1590 DWORD *stack = MapSL( MAKESEGPTR( LOWORD(context->Edx), HIWORD(context->Edx) ));
1591 LPVOID base = (LPVOID)W32S_APP2WINE(stack[0]);
1592 DWORD size = stack[1];
1593 DWORD type = stack[2];
1594 DWORD prot = stack[3];
1595 DWORD result;
1596
1597 TRACE("VirtualAlloc16(%x, %x, %x, %x)\n",
1598 (DWORD)base, size, type, prot);
1599
1600 if (type & 0x80000000)
1601 {
1602 WARN("VirtualAlloc16: strange type %x\n", type);
1603 type &= 0x7fffffff;
1604 }
1605
1606 result = (DWORD)VirtualAlloc(base, size, type, prot);
1607
1608 if (W32S_WINE2APP(result))
1609 context->Edx = W32S_WINE2APP(result),
1610 context->Eax = STATUS_SUCCESS;
1611 else
1612 context->Edx = 0,
1613 context->Eax = STATUS_NO_MEMORY; /* FIXME */
1614 TRACE("VirtualAlloc16: returning base %x\n", context->Edx);
1615 }
1616 break;
1617
1618
1619 case 0x001E: /* VirtualFree called from 16-bit code */
1620 /*
1621 * Input: EDX: Segmented address of arguments on stack
1622 *
1623 * LPVOID base [in] Flat address of region
1624 * DWORD size [in] Size of region
1625 * DWORD type [in] Type of operation
1626 *
1627 * Output: EAX: NtStatus
1628 * EDX: TRUE if success, FALSE if failure
1629 */
1630 {
1631 DWORD *stack = MapSL( MAKESEGPTR( LOWORD(context->Edx), HIWORD(context->Edx) ));
1632 LPVOID base = (LPVOID)W32S_APP2WINE(stack[0]);
1633 DWORD size = stack[1];
1634 DWORD type = stack[2];
1635 DWORD result;
1636
1637 TRACE("VirtualFree16(%x, %x, %x)\n",
1638 (DWORD)base, size, type);
1639
1640 result = VirtualFree(base, size, type);
1641
1642 if (result)
1643 context->Edx = TRUE,
1644 context->Eax = STATUS_SUCCESS;
1645 else
1646 context->Edx = FALSE,
1647 context->Eax = STATUS_NO_MEMORY; /* FIXME */
1648 }
1649 break;
1650
1651
1652 case 0x001F: /* FWorkingSetSize */
1653 /*
1654 * Input: EDX: 0 if Get, 1 if Set
1655 *
1656 * ECX: Get: Buffer to receive Working Set Size
1657 * Set: Buffer containing Working Set Size
1658 *
1659 * Output: NtStatus
1660 */
1661 {
1662 DWORD *ptr = (DWORD *)W32S_APP2WINE(context->Ecx);
1663 BOOL set = context->Edx;
1664
1665 TRACE("FWorkingSetSize(%x, %x)\n", (DWORD)ptr, (DWORD)set);
1666
1667 if (set)
1668 /* We do it differently ... */;
1669 else
1670 *ptr = 0x100;
1671
1672 context->Eax = STATUS_SUCCESS;
1673 }
1674 break;
1675
1676
1677 default:
1678 VXD_BARF( context, "W32S" );
1679 }
1680
1681 }
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