VBoxSFA.asm@ 13815

最後變更在這個檔案從13815是 4377,由 vboxsync 提交於 17 年前
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1	; $Id: VBoxSFA.asm 4377 2007-08-27 08:45:40Z vboxsync $
2	;; @file
3	; VBoxSF - OS/2 Shared Folders, all assembly code (16 -> 32 thunking mostly).
4	;
5
6	;
7	; Copyright (c) 2007 knut st. osmundsen <[email protected]>
8	;
9	; Permission is hereby granted, free of charge, to any person
10	; obtaining a copy of this software and associated documentation
11	; files (the "Software"), to deal in the Software without
12	; restriction, including without limitation the rights to use,
13	; copy, modify, merge, publish, distribute, sublicense, and/or sell
14	; copies of the Software, and to permit persons to whom the
15	; Software is furnished to do so, subject to the following
16	; conditions:
17	;
18	; The above copyright notice and this permission notice shall be
19	; included in all copies or substantial portions of the Software.
20	;
21	; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22	; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
23	; OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24	; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
25	; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
26	; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27	; FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
28	; OTHER DEALINGS IN THE SOFTWARE.
29	;
30
31
32	;*******************************************************************************
33	;* Header Files *
34	;*******************************************************************************
35	%define RT_INCL_16BIT_SEGMENTS
36	%include "iprt/asmdefs.mac"
37	%include "iprt/err.mac"
38	%include "VBox/VBoxGuest.mac"
39
40
41	;*******************************************************************************
42	;* Defined Constants And Macros *
43	;*******************************************************************************
44	%define ERROR_NOT_SUPPORTED 50
45	%define ERROR_INVALID_PARAMETER 87
46	%define DevHlp_AttachDD 2ah
47
48	;;
49	; Prints a string to the VBox log port.
50	%macro DEBUG_STR16 1
51	%ifdef DEBUG
52	segment DATA16
53	%%my_dbg_str: db %1, 0ah, 0
54	segment CODE16
55	push ax
56	mov ax, %%my_dbg_str
57	call NAME(dbgstr16)
58	pop ax
59	%endif
60	%endmacro
61
62
63	%macro VBOXSF_EP16_BEGIN 2
64	global %1
65	%1:
66	DEBUG_STR16 {'VBoxSF: ', %2}
67
68	%endmacro
69
70	%macro VBOXSF_EP16_END 1
71	global %1_EndProc
72	%1_EndProc:
73	%endmacro
74
75	;;
76	; Used to taking us to 32-bit and reserving a parameter frame.
77	;
78	; @param %1 The function name
79	; @param %2 The number of bytes to reserve
80	;
81	%macro VBOXSF_TO_32 2
82	; prologue
83	push ebp
84	mov ebp, esp ; bp
85	push ds ; bp - 2
86	push es ; bp - 4
87
88	; Reserve the 32-bit parameter and align the stack on a 16 byte
89	; boundrary to make GCC really happy.
90	sub sp, %2
91	and sp, 0fff0h
92
93	;jmp far dword NAME(%i %+ _32) wrt FLAT
94	db 066h
95	db 0eah
96	dd NAME(%1 %+ _32) ;wrt FLAT
97	dw TEXT32 wrt FLAT
98	segment TEXT32
99	GLOBALNAME %1 %+ _32
100	mov ax, DATA32 wrt FLAT
101	mov ds, ax
102	mov es, ax
103
104	call KernThunkStackTo32
105
106	%endmacro VBOXSF_TO_32 1
107
108	;;
109	; The counter part to VBOXSF_TO_32
110	;
111	; @param %1 The function name
112	;
113	%macro VBOXSF_TO_16 1
114	push eax
115	call KernThunkStackTo16
116	pop eax
117
118	;jmp far dword NAME(%1 %+ _16) wrt CODE16
119	db 066h
120	db 0eah
121	dw NAME(%1 %+ _16) wrt CODE16
122	dw CODE16
123	segment CODE16
124	GLOBALNAME %1 %+ _16
125
126	; Epilogue
127	lea sp, [bp - 4h]
128	pop es
129	pop ds
130	mov esp, ebp
131	pop ebp
132	%endmacro
133
134	;;
135	; Thunks the given 16:16 pointer to a flat pointer.
136	;
137	; @param %1 The negated ebp offset of the input.
138	; @param %2 The esp offset of the output.
139	; @users eax, edx, ecx
140	;
141	%macro VBOXSF_FARPTR_2_FLAT 2
142	movzx eax, word [ebp - (%1) + 2]
143	push eax
144	call KernSelToFlat
145	movzx edx, word [ebp - (%1)]
146	add eax, edx
147	mov [esp + (%2)], eax
148	%endmacro
149
150	;;
151	; Thunks the given 16:16 struct sffsd pointer to a flat pointer.
152	;
153	; @param %1 The negated ebp offset of the input.
154	; @param %2 The esp offset of the output.
155	; @users eax, ecx
156	;
157	%macro VBOXSF_PSFFSD_2_FLAT 2
158	lds cx, [ebp - (%1)]
159	and ecx, 0ffffh
160	mov eax, dword [ecx]
161	mov cx, DATA32 wrt FLAT
162	mov [esp + (%2)], eax
163	mov ds, cx
164	%endmacro
165
166
167	;;
168	; Thunks the given 16:16 struct cdfsd pointer to a flat pointer.
169	;
170	; @param %1 The negated ebp offset of the input.
171	; @param %2 The esp offset of the output.
172	; @users eax, ecx
173	;
174	%macro VBOXSF_PCDFSD_2_FLAT 2
175	lds cx, [ebp - (%1)]
176	and ecx, 0ffffh
177	mov eax, dword [ecx]
178	mov cx, DATA32 wrt FLAT
179	mov [esp + (%2)], eax
180	mov ds, cx
181	%endmacro
182
183	;;
184	; Thunks the given 16:16 struct fsfsd pointer to a flat pointer.
185	;
186	; @param %1 The negated ebp offset of the input.
187	; @param %2 The esp offset of the output.
188	; @users eax, ecx
189	;
190	%macro VBOXSF_PFSFSD_2_FLAT 2
191	lds cx, [ebp - (%1)]
192	and ecx, 0ffffh
193	mov eax, dword [ecx]
194	mov cx, DATA32 wrt FLAT
195	mov [esp + (%2)], eax
196	mov ds, cx
197	%endmacro
198
199
200
201	;*******************************************************************************
202	;* External Symbols *
203	;*******************************************************************************
204	segment CODE32
205	extern KernThunkStackTo32
206	extern KernThunkStackTo16
207	extern KernSelToFlat
208	segment CODE16
209	extern FSH_FORCENOSWAP
210	extern DOS16WRITE
211
212	segment CODE32
213	extern NAME(FS32_ALLOCATEPAGESPACE)
214	extern NAME(FS32_ATTACH)
215	extern NAME(FS32_CANCELLOCKREQUEST)
216	extern NAME(FS32_CANCELLOCKREQUESTL)
217	extern NAME(FS32_CHDIR)
218	extern FS32_CHGFILEPTRL
219	extern NAME(FS32_CLOSE)
220	extern NAME(FS32_COMMIT)
221	extern NAME(FS32_COPY)
222	extern NAME(FS32_DELETE)
223	extern NAME(FS32_DOPAGEIO)
224	extern NAME(FS32_EXIT)
225	extern NAME(FS32_FILEATTRIBUTE)
226	extern NAME(FS32_FILEINFO)
227	extern NAME(FS32_FILEIO)
228	extern NAME(FS32_FILELOCKS)
229	extern NAME(FS32_FILELOCKSL)
230	extern NAME(FS32_FINDCLOSE)
231	extern NAME(FS32_FINDFIRST)
232	extern NAME(FS32_FINDFROMNAME)
233	extern NAME(FS32_FINDNEXT)
234	extern NAME(FS32_FINDNOTIFYCLOSE)
235	extern NAME(FS32_FINDNOTIFYFIRST)
236	extern NAME(FS32_FINDNOTIFYNEXT)
237	extern NAME(FS32_FLUSHBUF)
238	extern NAME(FS32_FSCTL)
239	extern NAME(FS32_FSINFO)
240	extern NAME(FS32_IOCTL)
241	extern NAME(FS32_MKDIR)
242	extern NAME(FS32_MOUNT)
243	extern NAME(FS32_MOVE)
244	extern NAME(FS32_NEWSIZEL)
245	extern NAME(FS32_NMPIPE)
246	extern NAME(FS32_OPENCREATE)
247	extern NAME(FS32_OPENPAGEFILE)
248	extern NAME(FS32_PATHINFO)
249	extern NAME(FS32_PROCESSNAME)
250	extern FS32_READ
251	extern NAME(FS32_RMDIR)
252	extern NAME(FS32_SETSWAP)
253	extern NAME(FS32_SHUTDOWN)
254	extern FS32_WRITE
255
256	extern NAME(VBoxSFR0Init)
257
258
259
260	;*******************************************************************************
261	;* Global Variables *
262	;*******************************************************************************
263	segment DATA16
264
265	;;
266	; The file system name.
267	global FS_NAME
268	FS_NAME:
269	db 'VBOXSF',0
270
271	;;
272	; File system attributes
273	; The 32-bit version is only used to indicate that this is a 32-bit file system.
274	;
275	%define FSA_REMOTE 0001h ; remote file system.
276	%define FSA_UNC 0002h ; implements UNC.
277	%define FSA_LOCK 0004h ; needs lock notification.
278	%define FSA_LVL7 0008h ; accept level 7 (case perserving path request).
279	%define FSA_PSVR 0010h ; (named) pipe server.
280	%define FSA_LARGEFILE 0020h ; large file support.
281	align 16
282	global FS_ATTRIBUTE
283	global FS32_ATTRIBUTE
284	FS_ATTRIBUTE:
285	FS32_ATTRIBUTE:
286	dd FSA_REMOTE + FSA_LARGEFILE ;+ FSA_LVL7 + FSA_LOCK
287
288	;; 64-bit mask.
289	; bit 0 - don't get the ring-0 spinlock.
290	; bit 6 - don't get the subsystem ring-0 spinlock.
291	global FS_MPSAFEFLAGS2
292	FS_MPSAFEFLAGS2:
293	dd 0
294	dd 0
295
296	;;
297	; Set after VBoxSFR0Init16Bit has been called.
298	GLOBALNAME g_fDoneRing0
299	db 0
300
301	align 4
302	;;
303	; The device helper (IPRT expects this name).
304	; (This is set by FS_INIT.)
305	GLOBALNAME g_fpfnDevHlp
306	dd 0
307
308	;;
309	; Whether initialization should be verbose or quiet.
310	GLOBALNAME g_fVerbose
311	db 1
312
313	;; DEBUGGING DEBUGGING
314	GLOBALNAME g_u32Info
315	dd 0
316
317	;; Far pointer to DOS16WRITE (corrected set before called).
318	; Just a 'temporary' hack to work around a wlink/nasm issue.
319	GLOBALNAME g_fpfnDos16Write
320	dw DOS16WRITE
321	dw seg DOS16WRITE
322
323	;;
324	; The attach dd data.
325	GLOBALNAME g_VBoxGuestAttachDD
326	dd 0
327	dw 0
328	dd 0
329	dw 0
330	;;
331	; The AttachDD name of the VBoxGuest.sys driver.
332	GLOBALNAME g_szVBoxGuestName
333	db VBOXGUEST_DEVICE_NAME, 0
334	;;
335	; The VBoxGuest IDC connection data.
336	GLOBALNAME g_VBoxGuestIDC
337	times VBGOS2IDC_size db 0
338
339	;;
340	; This must be present, we've got fixups against it.
341	segment DATA32
342	g_pfnDos16Write:
343	dd DOS16WRITE ; flat
344
345
346
347
348
349
350
351	;
352	;
353	; 16-bit entry point thunking.
354	; 16-bit entry point thunking.
355	; 16-bit entry point thunking.
356	;
357	;
358	segment CODE16
359
360
361	;;
362	; @cproto int FS_ALLOCATEPAGESPACE(PSFFSI psffsi, PVBOXSFFSD psffsd, ULONG cb, USHORT cbWantContig)
363	VBOXSF_EP16_BEGIN FS_ALLOCATEPAGESPACE, 'FS_ALLOCATEPAGESPACE'
364	VBOXSF_TO_32 FS_ALLOCATEPAGESPACE, 4*4
365	movzx ecx, word [ebp + 08h] ; cbWantContig
366	mov [esp + 3*4], ecx
367	mov edx, [ebp + 0ah] ; cb
368	mov [esp + 2*4], edx
369	VBOXSF_PSFFSD_2_FLAT 0eh, 1*4 ; psffsd
370	VBOXSF_FARPTR_2_FLAT 12h, 0*4 ; psffsi
371	call NAME(FS32_ALLOCATEPAGESPACE)
372	VBOXSF_TO_16 FS_ALLOCATEPAGESPACE
373	retf 0eh
374	VBOXSF_EP16_END FS_ALLOCATEPAGESPACE
375
376	;;
377	; @cproto int FS_ATTACH(USHORT flag, PCSZ pszDev, PVPFSD pvpfsd, PCDFSD pcdfsd, PBYTE pszParm, PUSHORT pcbParm)
378	;
379	VBOXSF_EP16_BEGIN FS_ATTACH, 'FS_ATTACH'
380	;
381	; Initialized ring-0 yet? (this is a likely first entry point)
382	;
383	push ds
384	mov ax, DATA16
385	mov ds, ax
386	test byte [NAME(g_fDoneRing0)], 1
387	jnz .DoneRing0
388	call NAME(VBoxSFR0Init16Bit)
389	.DoneRing0:
390	pop ds
391
392	VBOXSF_TO_32 FS_ATTACH, 6*4
393	VBOXSF_FARPTR_2_FLAT 08h, 5*4 ; pcbParm
394	VBOXSF_FARPTR_2_FLAT 0ch, 4*4 ; pszParm
395	VBOXSF_FARPTR_2_FLAT 10h, 3*4 ; pcdfsd
396	VBOXSF_FARPTR_2_FLAT 14h, 2*4 ; pvpfsd
397	VBOXSF_FARPTR_2_FLAT 18h, 1*4 ; pszDev
398	movzx ecx, word [ebp + 1ch] ; fFlag
399	mov [esp], ecx
400	call NAME(FS32_ATTACH)
401	VBOXSF_TO_16 FS_ATTACH
402	retf 16h
403	VBOXSF_EP16_END FS_ATTACH
404
405
406	;;
407	; @cproto int FS_CANCELLOCKREQUEST(PSFFSI psffsi, PVBOXSFFSD psffsd, struct filelock far *pLockRange)
408	VBOXSF_EP16_BEGIN FS_CANCELLOCKREQUEST, 'FS_CANCELLOCKREQUEST'
409	VBOXSF_TO_32 FS_CANCELLOCKREQUEST, 3*4
410	VBOXSF_FARPTR_2_FLAT 08h, 2*4 ; pLockRange
411	VBOXSF_PSFFSD_2_FLAT 0ch, 1*4 ; psffsd
412	VBOXSF_FARPTR_2_FLAT 10h, 0*4 ; psffsi
413	call NAME(FS32_CANCELLOCKREQUEST)
414	VBOXSF_TO_16 FS_CANCELLOCKREQUEST
415	retf 0ch
416	VBOXSF_EP16_END FS_CANCELLOCKREQUEST
417
418
419	;;
420	; @cproto int FS_CANCELLOCKREQUESTL(PSFFSI psffsi, PVBOXSFFSD psffsd, struct filelockl far *pLockRange)
421	VBOXSF_EP16_BEGIN FS_CANCELLOCKREQUESTL, 'FS_CANCELLOCKREQUESTL'
422	VBOXSF_TO_32 FS_CANCELLOCKREQUESTL, 3*4
423	VBOXSF_FARPTR_2_FLAT 08h, 2*4 ; pLockRange
424	VBOXSF_PSFFSD_2_FLAT 0ch, 1*4 ; psffsd
425	VBOXSF_FARPTR_2_FLAT 10h, 0*4 ; psffsi
426	call NAME(FS32_CANCELLOCKREQUESTL)
427	VBOXSF_TO_16 FS_CANCELLOCKREQUESTL
428	retf 0ch
429	VBOXSF_EP16_END FS_CANCELLOCKREQUESTL
430
431
432	;;
433	; @cproto int FS_CHDIR(USHORT flag, PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszDir, USHORT iCurDirEnd)
434	VBOXSF_EP16_BEGIN FS_CHDIR, 'FS_CHDIR'
435	VBOXSF_TO_32 FS_CHDIR, 5*4
436	movzx ecx, word [ebp + 08h] ; iCurDirEnd
437	mov [esp + 4*4], ecx
438	VBOXSF_FARPTR_2_FLAT 0ah, 3*4 ; pszDir
439	VBOXSF_FARPTR_2_FLAT 0eh, 2*4 ; pcdfsd (use slow thunk here, see flag)
440	VBOXSF_FARPTR_2_FLAT 12h, 1*4 ; pcdfsi
441	movzx eax, word [ebp + 16h] ; flag
442	mov [esp], eax
443	call NAME(FS32_CHDIR)
444	VBOXSF_TO_16 FS_CHDIR
445	retf 10h
446	VBOXSF_EP16_END FS_CHDIR
447
448
449	; @cproto int FS_CHGFILEPTR(PSFFSI psffsi, PVBOXSFFSD psffsd, LONG off, USHORT usMethod, USHORT IOflag)
450	VBOXSF_EP16_BEGIN FS_CHGFILEPTR, 'FS_CHGFILEPTR'
451	VBOXSF_TO_32 FS_CHGFILEPTR, 6*4
452	movzx ecx, word [ebp + 08h] ; IOflag
453	mov [esp + 5*4], ecx
454	movzx edx, word [ebp + 0ah] ; usMethod
455	mov [esp + 4*4], edx
456	mov eax, [ebp + 0ch] ; off
457	mov [esp + 2*4], eax
458	rol eax, 1 ; high dword - is there a better way than this?
459	and eax, 1
460	mov edx, 0ffffffffh
461	mul edx
462	mov [esp + 3*4], eax
463	VBOXSF_PSFFSD_2_FLAT 10h, 1*4 ; psffsd
464	VBOXSF_FARPTR_2_FLAT 14h, 0*4 ; psffsi
465	call FS32_CHGFILEPTRL
466	VBOXSF_TO_16 FS_CHGFILEPTR
467	retf 10h
468	VBOXSF_EP16_END FS_CHGFILEPTR
469
470
471	;;
472	; @cproto int FS_CLOSE(USHORT type, USHORT IOflag, PSFFSI psffsi, PVBOXSFFSD psffsd)
473	;
474	VBOXSF_EP16_BEGIN FS_CLOSE, 'FS_CLOSE'
475	VBOXSF_TO_32 FS_CLOSE, 4*4
476	VBOXSF_PSFFSD_2_FLAT 08h, 3*4 ; psffsd
477	VBOXSF_FARPTR_2_FLAT 0ch, 2*4 ; psffsi
478	movzx ecx, word [ebp + 10h] ; IOflag
479	mov [esp + 1*4], ecx
480	movzx edx, word [ebp + 12h] ; type
481	mov [esp], edx
482	call NAME(FS32_CLOSE)
483	VBOXSF_TO_16 FS_CLOSE
484	retf 0ch
485	VBOXSF_EP16_END FS_CLOSE
486
487
488	;;
489	; @cproto int FS_COMMIT(USHORT type, USHORT IOflag, PSFFSI psffsi, PVBOXSFFSD psffsd)
490	;
491	VBOXSF_EP16_BEGIN FS_COMMIT, 'FS_COMMIT'
492	VBOXSF_TO_32 FS_COMMIT, 4*4
493	VBOXSF_PSFFSD_2_FLAT 08h, 3*4 ; psffsd
494	VBOXSF_FARPTR_2_FLAT 0ch, 2*4 ; psffsi
495	movzx ecx, word [ebp + 10h] ; IOflag
496	mov [esp + 1*4], ecx
497	movzx edx, word [ebp + 12h] ; type
498	mov [esp], edx
499	call NAME(FS32_COMMIT)
500	VBOXSF_TO_16 FS_COMMIT
501	retf 0ch
502	VBOXSF_EP16_END FS_COMMIT
503
504	;;
505	; @cproto int FS_COPY(USHORT flag, PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszSrc, USHORT iSrcCurDirEnd
506	; PCSZ pszDst, USHORT iDstCurDirEnd, USHORT nameType);
507	VBOXSF_EP16_BEGIN FS_COPY, 'FS_COPY'
508	VBOXSF_TO_32 FS_COPY, 8*4
509	movzx ecx, word [ebp + 08h] ; flag
510	mov [esp + 7*4], ecx
511	movzx edx, word [ebp + 0ah] ; iDstCurDirEnd
512	mov [esp + 6*4], edx
513	VBOXSF_FARPTR_2_FLAT 0ch, 5*4 ; pszDst
514	movzx eax, word [ebp + 10h] ; iSrcCurDirEnd
515	mov [esp + 4*4], eax
516	VBOXSF_FARPTR_2_FLAT 12h, 3*4 ; pszSrc
517	VBOXSF_PCDFSD_2_FLAT 16h, 2*4 ; psffsd
518	VBOXSF_FARPTR_2_FLAT 1ah, 1*4 ; psffsi
519	movzx ecx, word [ebp + 1eh] ; flag
520	mov [esp], ecx
521	call NAME(FS32_COPY)
522	VBOXSF_TO_16 FS_COPY
523	retf 18h
524	VBOXSF_EP16_END FS_COPY
525
526
527	;;
528	; @cproto int FS_DELETE(PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszFile, USHORT iCurDirEnd);
529	VBOXSF_EP16_BEGIN FS_DELETE, 'FS_DELETE'
530	VBOXSF_TO_32 FS_DELETE, 4*4
531	movzx ecx, word [ebp + 08h] ; iCurDirEnd
532	mov [esp + 3*4], ecx
533	VBOXSF_FARPTR_2_FLAT 0ah, 2*4 ; pszFile
534	VBOXSF_PCDFSD_2_FLAT 0eh, 1*4 ; pcdfsd
535	VBOXSF_FARPTR_2_FLAT 12h, 0*4 ; pcdfsi
536	call NAME(FS32_DELETE)
537	VBOXSF_TO_16 FS_DELETE
538	retf 0eh
539	VBOXSF_EP16_END FS_DELETE
540
541
542	;;
543	; @cproto int FS_DOPAGEIO(PSFFSI psffsi, PVBOXSFFSD psffsd, struct PageCmdHeader far *pList)
544	VBOXSF_EP16_BEGIN FS_DOPAGEIO, 'FS_DOPAGEIO'
545	VBOXSF_TO_32 FS_DOPAGEIO, 3*4
546	VBOXSF_FARPTR_2_FLAT 08h, 2*4 ; pList
547	VBOXSF_PSFFSD_2_FLAT 0ch, 1*4 ; psffsd
548	VBOXSF_FARPTR_2_FLAT 10h, 0*4 ; psffsi
549	call NAME(FS32_DOPAGEIO)
550	VBOXSF_TO_16 FS_DOPAGEIO
551	retf 0ch
552	VBOXSF_EP16_END FS_DOPAGEIO
553
554	;;
555	; @cproto void FS_EXIT(USHORT uid, USHORT pid, USHORT pdb)
556	VBOXSF_EP16_BEGIN FS_EXIT, 'FS_EXIT'
557	;
558	; Initialized ring-0 yet? (this is a likely first entry point)
559	;
560	push ds
561	mov ax, DATA16
562	mov ds, ax
563	test byte [NAME(g_fDoneRing0)], 1
564	jnz .DoneRing0
565	call NAME(VBoxSFR0Init16Bit)
566	.DoneRing0:
567	pop ds
568
569	VBOXSF_TO_32 FS_EXIT, 3*4
570	movzx ecx, word [ebp + 08h] ; pdb
571	mov [esp + 2*4], ecx
572	movzx edx, word [ebp + 0ah] ; pib
573	mov [esp + 1*4], edx
574	movzx eax, word [ebp + 0ch] ; uid
575	mov [esp], eax
576	call NAME(FS32_EXIT)
577	VBOXSF_TO_16 FS_EXIT
578	retf 6h
579	VBOXSF_EP16_END FS_EXIT
580
581
582	;;
583	; @cproto int FS_FILEATTRIBUTE(USHORT flag, PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszName, USHORT iCurDirEnd, PUSHORT pAttr);
584	;
585	VBOXSF_EP16_BEGIN FS_FILEATTRIBUTE, 'FS_FILEATTRIBUTE'
586	VBOXSF_TO_32 FS_FILEATTRIBUTE, 6*4
587	VBOXSF_FARPTR_2_FLAT 08h, 5*4 ; pAttr
588	movzx ecx, word [ebp + 0ch] ; iCurDirEnd
589	mov [esp + 4*4], ecx
590	VBOXSF_FARPTR_2_FLAT 0eh, 3*4 ; pszName
591	VBOXSF_PCDFSD_2_FLAT 12h, 2*4 ; pcdfsd
592	VBOXSF_FARPTR_2_FLAT 16h, 1*4 ; pcdfsi
593	movzx edx, word [ebp + 1ah] ; flag
594	mov [esp], edx
595	call NAME(FS32_FILEATTRIBUTE)
596	VBOXSF_TO_16 FS_FILEATTRIBUTE
597	retf 14h
598	VBOXSF_EP16_END FS_FILEATTRIBUTE
599
600
601	;;
602	; @cproto int FS_FILEINFO(USHORT flag, PSFFSI psffsi, PVBOXSFFSD psffsd, USHORT level,
603	; PBYTE pData, USHORT cbData, USHORT IOflag);
604	VBOXSF_EP16_BEGIN FS_FILEINFO, 'FS_FILEINFO'
605	VBOXSF_TO_32 FS_FILEINFO, 7*4
606	movzx ecx, word [ebp + 08h] ; IOflag
607	mov [esp + 6*4], ecx
608	movzx edx, word [ebp + 0ah] ; cbData
609	mov [esp + 5*4], edx
610	VBOXSF_FARPTR_2_FLAT 0ch, 4*4 ; pData
611	movzx eax, word [ebp + 10h] ; level
612	mov [esp + 3*4], eax
613	VBOXSF_PSFFSD_2_FLAT 12h, 2*4 ; psffsd
614	VBOXSF_FARPTR_2_FLAT 16h, 1*4 ; psffsi
615	movzx ecx, word [ebp + 1ah] ; flag
616	mov [esp], ecx
617	call NAME(FS32_FILEINFO)
618	VBOXSF_TO_16 FS_FILEINFO
619	retf 14h
620	VBOXSF_EP16_END FS_FILEINFO
621
622
623	;;
624	; @cproto int FS_FILEIO(PSFFSI psffsi, PVBOXSFFSD psffsd, PBYTE pCmdList, USHORT cbCmdList,
625	; PUSHORT poError, USHORT IOflag);
626	VBOXSF_EP16_BEGIN FS_FILEIO, 'FS_FILEIO'
627	VBOXSF_TO_32 FS_FILEIO, 6*4
628	movzx ecx, word [ebp + 08h] ; IOFlag
629	mov [esp + 5*4], ecx
630	VBOXSF_FARPTR_2_FLAT 0ah, 4*4 ; poError
631	movzx edx, word [ebp + 0eh] ; cbCmdList
632	mov [esp + 3*4], edx
633	VBOXSF_FARPTR_2_FLAT 10h, 2*4 ; pCmdList
634	VBOXSF_PSFFSD_2_FLAT 14h, 1*4 ; psffsd
635	VBOXSF_FARPTR_2_FLAT 18h, 0*4 ; psffsi
636	call NAME(FS32_FILEIO)
637	VBOXSF_TO_16 FS_FILEIO
638	retf 14h
639	VBOXSF_EP16_END FS_FILEIO
640
641
642	;;
643	; @cproto int FS_FILELOCKS(PSFFSI psffsi, PVBOXSFFSD psffsd, struct filelock far *pUnLockRange
644	; struct filelock far *pLockRange, ULONG timeout, ULONG flags)
645	VBOXSF_EP16_BEGIN FS_FILELOCKS, 'FS_FILELOCKS'
646	VBOXSF_TO_32 FS_FILELOCKS, 6*4
647	mov ecx, [ebp + 08h] ; flags
648	mov [esp + 5*4], ecx
649	mov edx, [ebp + 0ch] ; timeout
650	mov [esp + 4*4], edx
651	VBOXSF_FARPTR_2_FLAT 10h, 3*4 ; pLockRange
652	VBOXSF_FARPTR_2_FLAT 14h, 2*4 ; pUnLockRange
653	VBOXSF_PSFFSD_2_FLAT 18h, 1*4 ; psffsd
654	VBOXSF_FARPTR_2_FLAT 1ch, 0*4 ; psffsi
655	call NAME(FS32_FILELOCKS)
656	VBOXSF_TO_16 FS_FILELOCKS
657	retf 18h
658	VBOXSF_EP16_END FS_FILELOCKS
659
660
661	;;
662	; @cproto int FS_FILELOCKSL(PSFFSI psffsi, PVBOXSFFSD psffsd, struct filelockl far *pUnLockRange
663	; struct filelockl far *pLockRange, ULONG timeout, ULONG flags)
664	VBOXSF_EP16_BEGIN FS_FILELOCKSL, 'FS_FILELOCKSL'
665	VBOXSF_TO_32 FS_FILELOCKSL, 6*4
666	mov ecx, [ebp + 08h] ; flags
667	mov [esp + 5*4], ecx
668	mov edx, [ebp + 0ch] ; timeout
669	mov [esp + 4*4], edx
670	VBOXSF_FARPTR_2_FLAT 10h, 3*4 ; pLockRange
671	VBOXSF_FARPTR_2_FLAT 14h, 2*4 ; pUnLockRange
672	VBOXSF_PSFFSD_2_FLAT 18h, 1*4 ; psffsd
673	VBOXSF_FARPTR_2_FLAT 1ch, 0*4 ; psffsi
674	call NAME(FS32_FILELOCKS)
675	VBOXSF_TO_16 FS_FILELOCKSL
676	retf 18h
677	VBOXSF_EP16_END FS_FILELOCKSL
678
679
680	;;
681	; @cproto int FS_FINDCLOSE(PFSFSI pfsfsi, PVBOXSFFS pfsfsd);
682	;
683	VBOXSF_EP16_BEGIN FS_FINDCLOSE, 'FS_FINDCLOSE'
684	VBOXSF_TO_32 FS_FINDCLOSE, 2*4
685	VBOXSF_PFSFSD_2_FLAT 08h, 1*4 ; pfsfsd
686	VBOXSF_FARPTR_2_FLAT 0ch, 0*4 ; pfsfsi
687	call NAME(FS32_FINDCLOSE)
688	VBOXSF_TO_16 FS_FINDCLOSE
689	retf 8h
690	VBOXSF_EP16_END FS_FINDCLOSE
691
692
693	;;
694	; @cproto int FS_FINDFIRST(PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszName, USHORT iCurDirEnd, USHORT attr,
695	; PFSFSI pfsfsi, PVBOXSFFS pfsfsd, PBYTE pbData, USHORT cbData, PUSHORT pcMatch,
696	; USHORT level, USHORT flags);
697	;
698	VBOXSF_EP16_BEGIN FS_FINDFIRST, 'FS_FINDFIRST'
699	VBOXSF_TO_32 FS_FINDFIRST, 12*4
700	movzx ecx, word [ebp + 08h] ; flags
701	mov [esp + 11*4], ecx
702	movzx edx, word [ebp + 0ah] ; level
703	mov [esp + 10*4], edx
704	VBOXSF_FARPTR_2_FLAT 0ch, 9*4 ; pcMatch
705	movzx eax, word [ebp + 10h] ; cbData
706	mov [esp + 8*4], eax
707	VBOXSF_FARPTR_2_FLAT 12h, 7*4 ; pbData
708	VBOXSF_FARPTR_2_FLAT 16h, 6*4 ; pfsfsd
709	VBOXSF_FARPTR_2_FLAT 1ah, 5*4 ; pfsfsi
710	movzx ecx, word [ebp + 1eh] ; attr
711	mov [esp + 4*4], ecx
712	movzx edx, word [ebp + 20h] ; iCurDirEnd
713	mov [esp + 3*4], edx
714	VBOXSF_FARPTR_2_FLAT 22h, 2*4 ; pszName
715	VBOXSF_PCDFSD_2_FLAT 26h, 1*4 ; pcdfsd
716	VBOXSF_FARPTR_2_FLAT 2ah, 0*4 ; pcdfsi
717	call NAME(FS32_FINDFIRST)
718	VBOXSF_TO_16 FS_FINDFIRST
719	retf 26h
720	VBOXSF_EP16_END FS_FINDFIRST
721
722
723	;;
724	; @cproto int FS_FINDFROMNAME(PFSFSI pfsfsi, PVBOXSFFS pfsfsd, PBYTE pbData, USHORT cbData, PUSHORT pcMatch,
725	; USHORT level, ULONG position, PCSZ pszName, USHORT flag)
726	;
727	VBOXSF_EP16_BEGIN FS_FINDFROMNAME, 'FS_FINDFROMNAME'
728	VBOXSF_TO_32 FS_FINDFROMNAME, 9*4
729	movzx ecx, word [ebp + 08h] ; flags
730	mov [esp + 8*4], ecx
731	VBOXSF_FARPTR_2_FLAT 0ah, 7*4 ; pszName
732	mov edx, [ebp + 0eh] ; position
733	mov [esp + 6*4], edx
734	movzx eax, word [ebp + 12h] ; level
735	mov [esp + 5*4], eax
736	VBOXSF_FARPTR_2_FLAT 14h, 4*4 ; pcMatch
737	movzx eax, word [ebp + 18h] ; cbData
738	mov [esp + 3*4], eax
739	VBOXSF_FARPTR_2_FLAT 1ah, 2*4 ; pbData
740	VBOXSF_PFSFSD_2_FLAT 1eh, 1*4 ; pfsfsd
741	VBOXSF_FARPTR_2_FLAT 22h, 0*4 ; pfsfsi
742	call NAME(FS32_FINDFROMNAME)
743	VBOXSF_TO_16 FS_FINDFROMNAME
744	retf 1eh
745	VBOXSF_EP16_END FS_FINDFROMNAME
746
747
748	;;
749	; @cproto int FS_FINDNEXT(PFSFSI pfsfsi, PVBOXSFFS pfsfsd, PBYTE pbData, USHORT cbData, PUSHORT pcMatch,
750	; USHORT level, USHORT flag)
751	;
752	VBOXSF_EP16_BEGIN FS_FINDNEXT, 'FS_FINDNEXT'
753	VBOXSF_TO_32 FS_FINDNEXT, 7*4
754	movzx ecx, word [ebp + 08h] ; flags
755	mov [esp + 6*4], ecx
756	movzx eax, word [ebp + 0ah] ; level
757	mov [esp + 5*4], eax
758	VBOXSF_FARPTR_2_FLAT 0ch, 4*4 ; pcMatch
759	movzx eax, word [ebp + 10h] ; cbData
760	mov [esp + 3*4], eax
761	VBOXSF_FARPTR_2_FLAT 12h, 2*4 ; pbData
762	VBOXSF_PFSFSD_2_FLAT 16h, 1*4 ; pfsfsd
763	VBOXSF_FARPTR_2_FLAT 1ah, 0*4 ; pfsfsi
764	call NAME(FS32_FINDNEXT)
765	VBOXSF_TO_16 FS_FINDNEXT
766	retf 16h
767	VBOXSF_EP16_END FS_FINDNEXT
768
769
770	;;
771	; @cproto int FS_FINDNOTIFYCLOSE(USHORT handle);
772	;
773	VBOXSF_EP16_BEGIN FS_FINDNOTIFYCLOSE, 'FS_FINDNOTIFYCLOSE'
774	VBOXSF_TO_32 FS_FINDNOTIFYCLOSE, 1*4
775	movzx ecx, word [ebp + 08h] ; handle
776	mov [esp], ecx
777	call NAME(FS32_FINDNOTIFYCLOSE)
778	VBOXSF_TO_16 FS_FINDNOTIFYCLOSE
779	retf 2h
780	VBOXSF_EP16_END FS_FINDNOTIFYCLOSE
781
782
783	;;
784	; @cproto int FS_FINDNOTIFYFIRST(PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszName, USHORT iCurDirEnd, USHORT attr,
785	; PUSHORT pHandle, PBYTE pbData, USHORT cbData, PUSHORT pcMatch,
786	; USHORT level, USHORT flags);
787	;
788	VBOXSF_EP16_BEGIN FS_FINDNOTIFYFIRST, 'FS_FINDNOTIFYFIRST'
789	VBOXSF_TO_32 FS_FINDNOTIFYFIRST, 11*4
790	movzx ecx, word [ebp + 08h] ; flags
791	mov [esp + 10*4], ecx
792	movzx edx, word [ebp + 0ah] ; level
793	mov [esp + 9*4], edx
794	VBOXSF_FARPTR_2_FLAT 0ch, 8*4 ; pcMatch
795	movzx eax, word [ebp + 10h] ; cbData
796	mov [esp + 7*4], eax
797	VBOXSF_FARPTR_2_FLAT 12h, 6*4 ; pbData
798	VBOXSF_FARPTR_2_FLAT 16h, 5*4 ; pHandle
799	movzx ecx, word [ebp + 1ah] ; attr
800	mov [esp + 4*4], ecx
801	movzx edx, word [ebp + 1ch] ; iCurDirEnd
802	mov [esp + 3*4], edx
803	VBOXSF_FARPTR_2_FLAT 1eh, 2*4 ; pszName
804	VBOXSF_PCDFSD_2_FLAT 22h, 1*4 ; pcdfsd
805	VBOXSF_FARPTR_2_FLAT 26h, 0*4 ; pcdfsi
806	call NAME(FS32_FINDNOTIFYFIRST)
807	VBOXSF_TO_16 FS_FINDNOTIFYFIRST
808	retf 22h
809	VBOXSF_EP16_END FS_FINDNOTIFYFIRST
810
811
812	;;
813	; @cproto int FS_FINDNOTIFYNEXT(USHORT handle, PBYTE pbData, USHORT cbData, PUSHORT pcMatch,
814	; USHORT level, ULONG timeout)
815	;
816	VBOXSF_EP16_BEGIN FS_FINDNOTIFYNEXT, 'FS_FINDNOTIFYNEXT'
817	VBOXSF_TO_32 FS_FINDNOTIFYNEXT, 6*4
818	mov ecx, [ebp + 08h] ; timeout
819	mov [esp + 5*4], ecx
820	movzx edx, word [ebp + 0ch] ; level
821	mov [esp + 4*4], edx
822	VBOXSF_FARPTR_2_FLAT 0eh, 3*4 ; pcMatch
823	movzx eax, word [ebp + 12h] ; cbData
824	mov [esp + 2*4], eax
825	VBOXSF_FARPTR_2_FLAT 14h, 1*4 ; pbData
826	movzx ecx, word [ebp + 18h] ; handle
827	mov [esp], ecx
828	call NAME(FS32_FINDNOTIFYNEXT)
829	VBOXSF_TO_16 FS_FINDNOTIFYNEXT
830	retf 12h
831	VBOXSF_EP16_END FS_FINDNOTIFYNEXT
832
833
834	;; @cproto int FS_FLUSHBUF(USHORT hVPB, USHORT flag);
835	VBOXSF_EP16_BEGIN FS_FLUSHBUF, 'FS_FLUSHBUF'
836	VBOXSF_TO_32 FS_FLUSHBUF, 2*4
837	movzx edx, word [ebp + 08h] ; flag
838	mov [esp + 1*4], edx
839	movzx eax, word [ebp + 0ch] ; hVPB
840	mov [esp + 0*4], eax
841	call NAME(FS32_FLUSHBUF)
842	VBOXSF_TO_16 FS_FLUSHBUF
843	retf 4h
844	VBOXSF_EP16_END FS_FLUSHBUF
845
846
847	;; @cproto int FS_FSCTL(union argdat far *pArgdat, USHORT iArgType, USHORT func,
848	; PVOID pParm, USHORT lenParm, PUSHORT plenParmIO,
849	; PVOID pData, USHORT lenData, PUSHORT plenDataIO);
850	VBOXSF_EP16_BEGIN FS_FSCTL, 'FS_FSCTL'
851	;
852	; Initialized ring-0 yet? (this is a likely first entry point)
853	;
854	push ds
855	mov ax, DATA16
856	mov ds, ax
857	test byte [NAME(g_fDoneRing0)], 1
858	jnz .DoneRing0
859	call NAME(VBoxSFR0Init16Bit)
860	.DoneRing0:
861	pop ds
862
863	VBOXSF_TO_32 FS_FSCTL, 9*4
864	VBOXSF_FARPTR_2_FLAT 08h, 8*4 ; plenDataIO
865	movzx ecx, word [ebp + 0ch] ; lenData
866	mov [esp + 7*4], ecx
867	VBOXSF_FARPTR_2_FLAT 0eh, 6*4 ; pData
868	VBOXSF_FARPTR_2_FLAT 12h, 5*4 ; plenDataIO
869	movzx ecx, word [ebp + 16h] ; lenData
870	mov [esp + 4*4], ecx
871	VBOXSF_FARPTR_2_FLAT 18h, 3*4 ; pData
872	movzx edx, word [ebp + 1ch] ; func
873	mov [esp + 2*4], edx
874	movzx eax, word [ebp + 1eh] ; iArgType
875	mov [esp + 1*4], eax
876	VBOXSF_FARPTR_2_FLAT 20h, 0*4 ; pArgdat
877	call NAME(FS32_FSCTL)
878	VBOXSF_TO_16 FS_FSCTL
879	retf 1ch
880	VBOXSF_EP16_END FS_FSCTL
881
882
883	;; @cproto int FS_FSINFO(USHORT flag, USHORT hVPB, PBYTE pbData, USHORT cbData, USHORT level)
884	VBOXSF_EP16_BEGIN FS_FSINFO, 'FS_FSINFO'
885	VBOXSF_TO_32 FS_FSINFO, 5*4
886	movzx ecx, word [ebp + 08h] ; level
887	mov [esp + 10h], ecx
888	movzx edx, word [ebp + 0ah] ; cbData
889	mov [esp + 0ch], edx
890	VBOXSF_FARPTR_2_FLAT 0ch, 2*4 ; pbData
891	movzx edx, word [ebp + 10h] ; hVPB
892	mov [esp], edx
893	movzx eax, word [ebp + 12h] ; flag
894	mov [esp], eax
895	call NAME(FS32_FSINFO)
896	VBOXSF_TO_16 FS_FSINFO
897	retf 14h
898	VBOXSF_EP16_END FS_FSINFO
899
900
901	;;
902	; @cproto int FS_IOCTL(PSFFSI psffsi, PVBOXSFFSD psffsd, USHORT cat, USHORT func,
903	; PVOID pParm, USHORT lenParm, PUSHORT plenParmIO,
904	; PVOID pData, USHORT lenData, PUSHORT plenDataIO);
905	VBOXSF_EP16_BEGIN FS_IOCTL, 'FS_IOCTL'
906	VBOXSF_TO_32 FS_IOCTL, 10*4
907	VBOXSF_FARPTR_2_FLAT 08h, 9*4 ; plenDataIO
908	movzx ecx, word [ebp + 0ch] ; lenData
909	mov [esp + 8*4], ecx
910	VBOXSF_FARPTR_2_FLAT 0eh, 7*4 ; pData
911	VBOXSF_FARPTR_2_FLAT 12h, 6*4 ; plenDataIO
912	movzx ecx, word [ebp + 16h] ; lenData
913	mov [esp + 5*4], ecx
914	VBOXSF_FARPTR_2_FLAT 18h, 4*4 ; pData
915	movzx edx, word [ebp + 1ch] ; cat
916	mov [esp + 3*4], edx
917	movzx eax, word [ebp + 1eh] ; func
918	mov [esp + 2*4], eax
919	VBOXSF_PSFFSD_2_FLAT 20h, 1*4 ; psffsd
920	VBOXSF_FARPTR_2_FLAT 24h, 0*4 ; pData
921	call NAME(FS32_IOCTL)
922	VBOXSF_TO_16 FS_IOCTL
923	retf 20h
924	VBOXSF_EP16_END FS_IOCTL
925
926
927	;;
928	; @cproto int FS_MKDIR(PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszName, USHORT iCurDirEnd,
929	; PBYTE pEABuf, USHORT flag);
930	VBOXSF_EP16_BEGIN FS_MKDIR, 'FS_MKDIR'
931	VBOXSF_TO_32 FS_MKDIR, 6*4
932	movzx ecx, word [ebp + 08h] ; flag
933	mov [esp + 5*4], ecx
934	VBOXSF_FARPTR_2_FLAT 0ah, 4*4 ; pEABuf
935	movzx edx, word [ebp + 0eh] ; iCurDirEnd
936	mov [esp + 3*4], edx
937	VBOXSF_FARPTR_2_FLAT 10h, 2*4 ; pszName
938	VBOXSF_PCDFSD_2_FLAT 14h, 1*4 ; pcdfsd
939	VBOXSF_FARPTR_2_FLAT 18h, 0*4 ; pcdfsi
940	call NAME(FS32_MKDIR)
941	VBOXSF_TO_16 FS_MKDIR
942	retf 14h
943	VBOXSF_EP16_END FS_MKDIR
944
945
946	;;
947	; @cproto int FS_MOUNT(USHORT flag, PVPFSI pvpfsi, PVBOXSFVP pvpfsd, USHORT hVPB, PCSZ pszBoot)
948	VBOXSF_EP16_BEGIN FS_MOUNT, 'FS_MOUNT'
949	;
950	; Initialized ring-0 yet? (this is a likely first entry point)
951	;
952	push ds
953	mov ax, DATA16
954	mov ds, ax
955	test byte [NAME(g_fDoneRing0)], 1
956	jnz .DoneRing0
957	call NAME(VBoxSFR0Init16Bit)
958	.DoneRing0:
959	pop ds
960
961	VBOXSF_TO_32 FS_MOUNT, 5*4
962	VBOXSF_FARPTR_2_FLAT 08h, 4*4 ; pszBoot
963	movzx ecx, word [ebp + 0ch] ; hVPB
964	mov [esp + 3*4], ecx
965	VBOXSF_FARPTR_2_FLAT 0eh, 2*4 ; pvpfsd
966	VBOXSF_FARPTR_2_FLAT 12h, 1*4 ; pvpfsi
967	movzx ecx, word [ebp + 16h] ; flag
968	mov [esp], ecx
969	call NAME(FS32_MOUNT)
970	VBOXSF_TO_16 FS_MOUNT
971	retf 10h
972	VBOXSF_EP16_END FS_MOUNT
973
974
975	;;
976	; @cproto int FS_MOVE(PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszSrc, USHORT iSrcCurDirEnd
977	; PCSZ pszDst, USHORT iDstCurDirEnd, USHORT type)
978	VBOXSF_EP16_BEGIN FS_MOVE, 'FS_MOVE'
979	VBOXSF_TO_32 FS_MOVE, 7*4
980	movzx ecx, word [ebp + 08h] ; type
981	mov [esp + 6*4], ecx
982	movzx edx, word [ebp + 0ah] ; iDstCurDirEnd
983	mov [esp + 5*4], edx
984	VBOXSF_FARPTR_2_FLAT 0ch, 4*4 ; pszDst
985	movzx eax, word [ebp + 10h] ; iSrcCurDirEnd
986	mov [esp + 3*4], eax
987	VBOXSF_FARPTR_2_FLAT 12h, 2*4 ; pszSrc
988	VBOXSF_PCDFSD_2_FLAT 16h, 1*4 ; psffsd
989	VBOXSF_FARPTR_2_FLAT 1ah, 0*4 ; psffsi
990	call NAME(FS32_MOVE)
991	VBOXSF_TO_16 FS_MOVE
992	retf 16h
993	VBOXSF_EP16_END FS_MOVE
994
995
996	;;
997	; @cproto int FS_NEWSIZE(PSFFSI psffsi, PVBOXSFFSD psffsd, ULONG cbFile, USHORT IOflag);
998	VBOXSF_EP16_BEGIN FS_NEWSIZE, 'FS_NEWSIZE'
999	VBOXSF_TO_32 FS_NEWSIZE, 5*4 ; thunking to longlong edition.
1000	movzx ecx, word [ebp + 08h] ; IOflag
1001	mov [esp + 4*4], ecx
1002	mov eax, [ebp + 0ah] ; cbFile (ULONG -> LONGLONG)
1003	mov dword [esp + 3*4], 0
1004	mov [esp + 2*4], eax
1005	VBOXSF_PSFFSD_2_FLAT 0eh, 1*4 ; psffsd
1006	VBOXSF_FARPTR_2_FLAT 12h, 0*4 ; psffsi
1007	call NAME(FS32_NEWSIZEL)
1008	VBOXSF_TO_16 FS_NEWSIZE
1009	retf 0eh
1010	VBOXSF_EP16_END FS_NEWSIZE
1011
1012
1013	;;
1014	; @cproto int FS_NEWSIZEL(PSFFSI psffsi, PVBOXSFFSD psffsd, LONGLONG cbFile, USHORT IOflag);
1015	VBOXSF_EP16_BEGIN FS_NEWSIZEL, 'FS_NEWSIZEL'
1016	VBOXSF_TO_32 FS_NEWSIZEL, 5*4
1017	movzx ecx, word [ebp + 08h] ; IOflag
1018	mov [esp + 4*4], ecx
1019	mov eax, [ebp + 0ah] ; cbFile
1020	mov edx, [ebp + 0eh]
1021	mov [esp + 3*4], edx
1022	mov [esp + 2*4], eax
1023	VBOXSF_PSFFSD_2_FLAT 12h, 1*4 ; psffsd
1024	VBOXSF_FARPTR_2_FLAT 16h, 0*4 ; psffsi
1025	call NAME(FS32_NEWSIZEL)
1026	VBOXSF_TO_16 FS_NEWSIZEL
1027	retf 12h
1028	VBOXSF_EP16_END FS_NEWSIZEL
1029
1030
1031	;;
1032	; @cproto int FS_NMPIPE(PSFFSI psffsi, PVBOXSFFSD psffsd, USHORT OpType, union npoper far *pOpRec,
1033	; PBYTE pData, PCSZ pszName);
1034	VBOXSF_EP16_BEGIN FS_NMPIPE, 'FS_NMPIPE'
1035	VBOXSF_TO_32 FS_NMPIPE, 6*4
1036	VBOXSF_FARPTR_2_FLAT 08h, 5*4 ; pszName
1037	VBOXSF_FARPTR_2_FLAT 0ch, 4*4 ; pData
1038	VBOXSF_FARPTR_2_FLAT 10h, 3*4 ; pOpRec
1039	movzx ecx, word [ebp + 14h] ; OpType
1040	mov [esp + 2*4], ecx
1041	VBOXSF_FARPTR_2_FLAT 16h, 1*4 ; psffsd (take care...)
1042	VBOXSF_FARPTR_2_FLAT 1ah, 0*4 ; psffsi
1043	call NAME(FS32_NMPIPE)
1044	VBOXSF_TO_16 FS_NMPIPE
1045	retf 16h
1046	VBOXSF_EP16_END FS_NMPIPE
1047
1048
1049	;;
1050	; @cproto int FS_OPENCREATE(PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszName, USHORT iCurDirEnd,
1051	; PSFFSI psffsi, PVBOXSFFSD psffsd, ULONG ulOpenMode, USHORT usOpenFlag,
1052	; PUSHORT pusAction, USHORT usAttr, PBYTE pcEABuf, PUSHORT pfgenflag);
1053	VBOXSF_EP16_BEGIN FS_OPENCREATE, 'FS_OPENCREATE'
1054	VBOXSF_TO_32 FS_OPENCREATE, 12*4
1055	VBOXSF_FARPTR_2_FLAT 08h, 11*4 ; pfgenflag
1056	VBOXSF_FARPTR_2_FLAT 0ch, 10*4 ; pcEABuf
1057	movzx ecx, word [ebp + 10h] ; usAttr
1058	mov [esp + 9*4], ecx
1059	VBOXSF_FARPTR_2_FLAT 12h, 8*4 ; pusAction
1060	movzx edx, word [ebp + 16h] ; usOpenFlag
1061	mov [esp + 7*4], edx
1062	mov eax, [ebp + 18h] ; ulOpenMode
1063	mov [esp + 6*4], eax
1064	VBOXSF_FARPTR_2_FLAT 1ch, 5*4 ; psffsd (new, no short cuts)
1065	VBOXSF_FARPTR_2_FLAT 20h, 4*4 ; psffsi
1066	movzx ecx, word [ebp + 24h] ; iCurDirEnd
1067	mov [esp + 3*4], ecx
1068	VBOXSF_FARPTR_2_FLAT 26h, 2*4 ; pszName
1069	VBOXSF_PCDFSD_2_FLAT 2ah, 1*4 ; pcdfsd
1070	VBOXSF_FARPTR_2_FLAT 2eh, 0*4 ; pcdfsi
1071	call NAME(FS32_OPENCREATE)
1072	VBOXSF_TO_16 FS_OPENCREATE
1073	retf 42
1074	VBOXSF_EP16_END FS_OPENCREATE
1075
1076
1077	;;
1078	; @cproto int FS_OPENPAGEFILE(PULONG pFlag, PULONG pcMaxReq, PCSZ pszName, PSFFSI psffsi, PVBOXSFFSD psffsd,
1079	; USHORT ulOpenMode, USHORT usOpenFlag, USHORT usAttr, ULONG Reserved)
1080	VBOXSF_EP16_BEGIN FS_OPENPAGEFILE, 'FS_OPENPAGEFILE'
1081	VBOXSF_TO_32 FS_OPENPAGEFILE, 9*4
1082	mov ecx, [ebp + 08h] ; Reserved
1083	mov [esp + 8*4], ecx
1084	movzx edx, word [ebp + 0ch] ; usAttr
1085	mov [esp + 7*4], edx
1086	movzx eax, word [ebp + 0eh] ; usOpenFlag
1087	mov [esp + 6*4], eax
1088	movzx ecx, word [ebp + 10h] ; usOpenMode
1089	mov [esp + 5*4], ecx
1090	VBOXSF_FARPTR_2_FLAT 12h, 4*4 ; psffsd (new, no short cuts)
1091	VBOXSF_FARPTR_2_FLAT 16h, 3*4 ; psffsi
1092	VBOXSF_FARPTR_2_FLAT 1ah, 2*4 ; pszName
1093	VBOXSF_FARPTR_2_FLAT 1eh, 1*4 ; pcMaxReq
1094	VBOXSF_FARPTR_2_FLAT 22h, 0*4 ; pFlag
1095	call NAME(FS32_OPENPAGEFILE)
1096	VBOXSF_TO_16 FS_OPENPAGEFILE
1097	retf 1eh
1098	VBOXSF_EP16_END FS_OPENPAGEFILE
1099
1100
1101	;;
1102	; @cproto int FS_PATHINFO(USHORT flag, PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszName, USHORT iCurDirEnt,
1103	; USHORT level, PBYTE pData, USHORT cbData);
1104	VBOXSF_EP16_BEGIN FS_PATHINFO, 'FS_PATHINFO'
1105	VBOXSF_TO_32 FS_PATHINFO, 8*4
1106	movzx ecx, word [ebp + 08h] ; cbData
1107	mov [esp + 7*4], ecx
1108	VBOXSF_FARPTR_2_FLAT 0ah, 6*4 ; pData
1109	movzx edx, word [ebp + 0eh] ; level
1110	mov [esp + 5*4], edx
1111	movzx eax, word [ebp + 10h] ; iCurDirEnd
1112	mov [esp + 4*4], eax
1113	VBOXSF_FARPTR_2_FLAT 12h, 3*4 ; pszName
1114	VBOXSF_PCDFSD_2_FLAT 16h, 2*4 ; pcdfsd
1115	VBOXSF_FARPTR_2_FLAT 1ah, 1*4 ; pcdfsi
1116	movzx edx, word [ebp + 1eh] ; flag
1117	mov [esp], edx
1118	call NAME(FS32_PATHINFO)
1119	VBOXSF_TO_16 FS_PATHINFO
1120	retf 18h
1121	VBOXSF_EP16_END FS_PATHINFO
1122
1123
1124	;; @cproto int FS_PROCESSNAME(PSZ pszName);
1125	VBOXSF_EP16_BEGIN FS_PROCESSNAME, 'FS_PROCESSNAME'
1126	VBOXSF_TO_32 FS_PROCESSNAME, 1*4
1127	VBOXSF_FARPTR_2_FLAT 08h, 0*4 ; pszName
1128	call NAME(FS32_PROCESSNAME)
1129	VBOXSF_TO_16 FS_PROCESSNAME
1130	retf 4h
1131	VBOXSF_EP16_END FS_PROCESSNAME
1132
1133
1134	;;
1135	; @cproto int FS_READ(PSFFSI psffsi, PVBOXSFFSD psffsd, PBYTE pbData, PUSHORT pcbData, USHORT IOflag)
1136	VBOXSF_EP16_BEGIN FS_READ, 'FS_READ'
1137	VBOXSF_TO_32 FS_READ, 6*4 ; extra local for ULONG cbDataTmp.
1138	movzx ecx, word [ebp + 08h] ; IOflag
1139	mov [esp + 4*4], ecx
1140	les dx, [ebp + 0ah] ; cbDataTmp = *pcbData;
1141	movzx edx, dx
1142	lea ecx, [esp + 5*4] ; pcbData = &cbDataTmp
1143	movzx eax, word [es:edx]
1144	mov [ecx], eax
1145	mov [esp + 3*4], ecx
1146	mov edx, DATA32
1147	mov es, edx
1148	VBOXSF_FARPTR_2_FLAT 0eh, 2*4 ; pbData
1149	VBOXSF_PSFFSD_2_FLAT 12h, 1*4 ; psffsd
1150	VBOXSF_FARPTR_2_FLAT 16h, 0*4 ; psffsi
1151	call FS32_READ
1152
1153	les dx, [ebp + 0ah] ; *pcbData = cbDataTmp;
1154	movzx edx, dx
1155	mov cx, [esp + 5*4]
1156	mov [es:edx], cx
1157	mov edx, DATA32
1158	mov es, edx
1159
1160	VBOXSF_TO_16 FS_READ
1161
1162	pop es
1163	retf 12h
1164	VBOXSF_EP16_END FS_READ
1165
1166
1167	;;
1168	; @cproto int FS_RMDIR(PCDFSI pcdfsi, PVBOXSFCD pcdfsd, PCSZ pszName, USHORT iCurDirEnd);
1169	;
1170	VBOXSF_EP16_BEGIN FS_RMDIR, 'FS_RMDIR'
1171	VBOXSF_TO_32 FS_RMDIR, 4*4
1172	movzx edx, word [ebp + 08h] ; iCurDirEnd
1173	mov [esp + 3*4], edx
1174	VBOXSF_FARPTR_2_FLAT 0ah, 2*4 ; pszName
1175	VBOXSF_PCDFSD_2_FLAT 0eh, 1*4 ; pcdfsd
1176	VBOXSF_FARPTR_2_FLAT 12h, 0*4 ; pcdfsi
1177	call NAME(FS32_RMDIR)
1178	VBOXSF_TO_16 FS_RMDIR
1179	retf 14h
1180	VBOXSF_EP16_END FS_RMDIR
1181
1182
1183	;;
1184	; @cproto int FS_SETSWAP(PSFFSI psffsi, PVBOXSFFSD psffsd);
1185	;
1186	VBOXSF_EP16_BEGIN FS_SETSWAP, 'FS_SETSWAP'
1187	VBOXSF_TO_32 FS_SETSWAP, 2*4
1188	VBOXSF_PSFFSD_2_FLAT 08h, 1*4 ; psffsd
1189	VBOXSF_FARPTR_2_FLAT 0ch, 0*4 ; psffsi
1190	call NAME(FS32_SETSWAP)
1191	VBOXSF_TO_16 FS_SETSWAP
1192	retf 8h
1193	VBOXSF_EP16_END FS_SETSWAP
1194
1195
1196	;;
1197	; @cproto int FS_SHUTDOWN(USHORT type, ULONG reserved);
1198	;
1199	VBOXSF_EP16_BEGIN FS_SHUTDOWN, 'FS_SHUTDOWN'
1200	VBOXSF_TO_32 FS_SHUTDOWN, 3*4
1201	mov ecx, [ebp + 08h] ; type
1202	mov [esp + 1*4], edx
1203	movzx edx, word [ebp + 0ah] ; reserved
1204	mov [esp], eax
1205	call NAME(FS32_SHUTDOWN)
1206	VBOXSF_TO_16 FS_SHUTDOWN
1207	retf 6h
1208	VBOXSF_EP16_END FS_SHUTDOWN
1209
1210
1211	;;
1212	; @cproto int FS_WRITE(PSFFSI psffsi, PVBOXSFFSD psffsd, PBYTE pbData, PUSHORT pcbData, USHORT IOflag)
1213	VBOXSF_EP16_BEGIN FS_WRITE, 'FS_WRITE'
1214	VBOXSF_TO_32 FS_WRITE, 6*4 ; extra local for ULONG cbDataTmp.
1215	movzx ecx, word [ebp + 08h] ; IOflag
1216	mov [esp + 4*4], ecx
1217	les dx, [ebp + 0ah] ; cbDataTmp = *pcbData;
1218	movzx edx, dx
1219	lea ecx, [esp + 5*4] ; pcbData = &cbDataTmp
1220	movzx eax, word [es:edx]
1221	mov [ecx], eax
1222	mov [esp + 3*4], ecx
1223	mov edx, DATA32
1224	mov es, edx
1225	VBOXSF_FARPTR_2_FLAT 0eh, 2*4 ; pbData
1226	VBOXSF_PSFFSD_2_FLAT 12h, 1*4 ; psffsd
1227	VBOXSF_FARPTR_2_FLAT 16h, 0*4 ; psffsi
1228	call FS32_WRITE
1229
1230	les dx, [ebp + 0ah] ; *pcbData = cbDataTmp;
1231	movzx edx, dx
1232	mov cx, [esp + 5*4]
1233	mov [es:edx], cx
1234	mov edx, DATA32
1235	mov es, edx
1236
1237	VBOXSF_TO_16 FS_WRITE
1238
1239	pop es
1240	retf 12h
1241	VBOXSF_EP16_END FS_WRITE
1242
1243
1244
1245
1246
1247
1248	;
1249	;
1250	; Init code starts here
1251	; Init code starts here
1252	; Init code starts here
1253	;
1254	;
1255
1256
1257	;;
1258	; Ring-3 Init (16-bit).
1259	;
1260	; @param pMiniFS [bp + 08h] The mini-FSD. (NULL)
1261	; @param fpfnDevHlp [bp + 0ch] The address of the DevHlp router.
1262	; @param pszCmdLine [bp + 10h] The config.sys command line.
1263	;
1264	VBOXSF_EP16_BEGIN FS_INIT, 'FS_INIT'
1265	; DEBUG_STR16 'VBoxSF: FS_INIT - enter'
1266	push ebp
1267	mov ebp, esp
1268	push ds ; bp - 02h
1269	push es ; bp - 04h
1270	push esi ; bp - 08h
1271	push edi ; bp - 0ch
1272
1273	mov ax, DATA16
1274	mov ds, ax
1275	mov es, ax
1276
1277	;
1278	; Save the device help entry point.
1279	;
1280	mov eax, [bp + 0ch]
1281	mov [NAME(g_fpfnDevHlp)], eax
1282
1283	;
1284	; Parse the command line.
1285	; Doing this in assembly is kind of ugly...
1286	;
1287	cmp word [bp + 10h + 2], 3
1288	jbe near .no_command_line
1289	lds si, [bp + 10h] ; ds:si -> command line iterator.
1290	.parse_next:
1291
1292	; skip leading blanks.
1293	.parse_next_char:
1294	mov di, si ; DI = start of argument.
1295	lodsb
1296	cmp al, ' '
1297	je .parse_next_char
1298	cmp al, 9 ; tab
1299	je .parse_next_char
1300	cmp al, 0
1301	je near .parse_done
1302
1303	; check for '/' or '-'
1304	cmp al, '/'
1305	je .parse_switch
1306	cmp al, '-'
1307	je .parse_switch
1308	jmp .parse_error
1309
1310	; parse switches.
1311	.parse_switch:
1312	lodsb
1313	cmp al, 0
1314	je .parse_error
1315	and al, ~20h ; uppercase
1316
1317	cmp al, 'V' ; /V - verbose
1318	je .parse_verbose
1319	cmp al, 'Q' ; /Q - quiet.
1320	je .parse_quiet
1321	jmp .parse_error
1322
1323	.parse_verbose:
1324	mov byte [es:NAME(g_fVerbose)], 1
1325	jmp .parse_next
1326
1327	.parse_quiet:
1328	mov byte [es:NAME(g_fVerbose)], 0
1329	jmp .parse_next
1330
1331	.parse_error:
1332	segment DATA16
1333	.szSyntaxError:
1334	db 0dh, 0ah, 'VBoxSF.ifs: command line parse error at: ', 0
1335	.szNewLine:
1336	db 0dh, 0ah, 0dh, 0ah, 0
1337	segment CODE16
1338	mov bx, .szSyntaxError
1339	call NAME(FS_INIT_FPUTS)
1340
1341	push es
1342	push ds
1343	pop es
1344	mov bx, di
1345	call NAME(FS_INIT_FPUTS)
1346	pop es
1347
1348	mov bx, .szNewLine
1349	call NAME(FS_INIT_FPUTS)
1350
1351	mov ax, ERROR_INVALID_PARAMETER
1352	jmp .done
1353
1354	.parse_done:
1355	mov ax, DATA16
1356	mov ds, ax
1357	.no_command_line:
1358
1359	;
1360	; Write our greeting to STDOUT.
1361	; APIRET _Pascal DosWrite(HFILE hf, PVOID pvBuf, USHORT cbBuf, PUSHORT pcbBytesWritten);
1362	;
1363	cmp byte [NAME(g_fVerbose)], 0
1364	je near .quiet
1365	segment DATA16
1366	.szMessage:
1367	db 'VirtualBox Guest Additions IFS for OS/2', 0dh, 0ah, 0
1368	segment CODE16
1369	mov bx, .szMessage
1370	call NAME(FS_INIT_FPUTS)
1371	.quiet:
1372
1373	; return success.
1374	xor eax, eax
1375	.done:
1376	lea sp, [bp - 0ch]
1377	pop edi
1378	pop esi
1379	pop es
1380	pop ds
1381	mov esp, ebp
1382	pop ebp
1383	DEBUG_STR16 'VBoxSF: FS_INIT - leave'
1384	retf 0ch
1385	VBOXSF_EP16_END FS_INIT
1386
1387
1388	;;
1389	; Dos16Write wrapper.
1390	;
1391	; @param es:bx String to print. (zero terminated)
1392	; @uses nothing.
1393	GLOBALNAME FS_INIT_FPUTS
1394	push bp
1395	mov bp, sp
1396	push es ; bp - 02h
1397	push ds ; bp - 04h
1398	push ax ; bp - 06h
1399	push bx ; bp - 08h
1400	push cx ; bp - 0ah
1401	push dx ; bp - 0ch
1402	push si ; bp - 0eh
1403	push di ; bp - 10h
1404
1405	; cx = strlen(es:bx)
1406	xor al, al
1407	mov di, bx
1408	mov cx, 0ffffh
1409	cld
1410	repne scasb
1411	not cx
1412	dec cx
1413
1414	; APIRET _Pascal DosWrite(HFILE hf, PVOID pvBuf, USHORT cbBuf, PUSHORT pcbBytesWritten);
1415	push cx
1416	mov ax, sp ; cbBytesWritten
1417	push 1 ; STDOUT
1418	push es ; pvBuf
1419	push bx
1420	push cx ; cbBuf
1421	push ss ; pcbBytesWritten
1422	push ax
1423	%if 0 ; wlink/nasm generates a non-aliased fixup here which results in 16-bit offset with the flat 32-bit selector.
1424	call far DOS16WRITE
1425	%else
1426	; convert flat pointer to a far pointer using the tiled algorithm.
1427	mov ax, DATA32 wrt FLAT
1428	mov ds, ax
1429	mov eax, g_pfnDos16Write wrt FLAT
1430	movzx eax, word [eax + 2] ; High word of the flat address (in DATA32).
1431	shl ax, 3
1432	or ax, 0007h
1433	mov dx, DATA16
1434	mov ds, dx
1435	mov [NAME(g_fpfnDos16Write) + 2], ax ; Update the selector (in DATA16).
1436	; do the call
1437	call far [NAME(g_fpfnDos16Write)]
1438	%endif
1439
1440	lea sp, [bp - 10h]
1441	pop di
1442	pop si
1443	pop dx
1444	pop cx
1445	pop bx
1446	pop ax
1447	pop ds
1448	pop es
1449	pop bp
1450	ret
1451	ENDPROC FS_INIT_FPUTS
1452
1453
1454
1455	;;
1456	; 16-bit ring-0 init routine.
1457	;
1458	; Called from various entrypoints likely to be the first to be invoked.
1459	;
1460	GLOBALNAME VBoxSFR0Init16Bit
1461	DEBUG_STR16 'VBoxSF: VBoxSFR0Init16Bit - enter'
1462	push ds
1463	push es
1464	push fs
1465	push gs
1466	push esi
1467	push edi
1468	push ebp
1469	mov ebp, esp
1470	and sp, 0fffch
1471
1472	;
1473	; Only try once.
1474	;
1475	mov ax, DATA16
1476	mov ds, ax
1477	mov byte [NAME(g_fDoneRing0)], 1
1478
1479	;
1480	; Try attach to the VBoxGuest driver.
1481	;
1482	mov bx, NAME(g_szVBoxGuestName)
1483	mov di, NAME(g_VBoxGuestAttachDD)
1484	mov dl, DevHlp_AttachDD
1485	call far [NAME(g_fpfnDevHlp)]
1486	jc .attach_attempt_done
1487
1488	push seg NAME(g_VBoxGuestIDC)
1489	push NAME(g_VBoxGuestIDC)
1490	call far [NAME(g_VBoxGuestAttachDD) + 6]
1491	.attach_attempt_done:
1492
1493	%ifndef DONT_LOCK_SEGMENTS
1494	;
1495	; Lock the two 16-bit segments.
1496	;
1497	push DATA16
1498	call far FSH_FORCENOSWAP
1499	push CODE16
1500	call far FSH_FORCENOSWAP
1501	; Wonder if this'll work if wlink could mark the two segments as ALIASed...
1502	;push DATA32
1503	;call far FSH_FORCENOSWAP
1504	;push TEXT32
1505	;call far FSH_FORCENOSWAP
1506	%endif
1507
1508	;
1509	; Do 32-bit ring-0 init.
1510	;
1511	;jmp far dword NAME(VBoxSFR0Init16Bit_32) wrt FLAT
1512	db 066h
1513	db 0eah
1514	dd NAME(VBoxSFR0Init16Bit_32) ;wrt FLAT
1515	dw TEXT32 wrt FLAT
1516	segment TEXT32
1517	GLOBALNAME VBoxSFR0Init16Bit_32
1518	mov ax, DATA32 wrt FLAT
1519	mov ds, ax
1520	mov es, ax
1521
1522	call KernThunkStackTo32
1523	call NAME(VBoxSFR0Init)
1524	call KernThunkStackTo16
1525
1526	;jmp far dword NAME(VBoxSFR0Init16Bit_16) wrt CODE16
1527	db 066h
1528	db 0eah
1529	dw NAME(VBoxSFR0Init16Bit_16) wrt CODE16
1530	dw CODE16
1531	segment CODE16
1532	GLOBALNAME VBoxSFR0Init16Bit_16
1533
1534	mov esp, ebp
1535	pop ebp
1536	pop edi
1537	pop esi
1538	pop gs
1539	pop fs
1540	pop es
1541	pop ds
1542	DEBUG_STR16 'VBoxSF: VBoxSFR0Init16Bit - leave'
1543	ret
1544	ENDPROC VBoxSFR0Init16Bit
1545
1546
1547	%ifdef DEBUG
1548	;;
1549	; print the string which offset is in AX (it's in the data segment).
1550	; @uses AX
1551	;
1552	GLOBALNAME dbgstr16
1553	push ds
1554	push ebx
1555	push edx
1556
1557	mov bx, ax
1558	mov dx, 0504h ; RTLOG_DEBUG_PORT
1559	mov ax, DATA16
1560	mov ds, ax
1561
1562	.next:
1563	mov al, [bx]
1564	or al, al
1565	jz .done
1566	inc bx
1567	out dx, al
1568	jmp .next
1569
1570	.done:
1571	pop edx
1572	pop ebx
1573	pop ds
1574	ret
1575	ENDPROC dbgstr16
1576	%endif
1577

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source: vbox/trunk/src/VBox/Additions/os2/VBoxSF/VBoxSFA.asm@ 13815

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