vbsf.cpp@ 9043

Last change on this file since 9043 was 8155, checked in by vboxsync, 17 years ago
The Big Sun Rebranding Header Change
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Line
1	/** @file
2	*
3	* Shared Folders:
4	* VBox Shared Folders.
5	*/
6
7	/*
8	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
9	*
10	* This file is part of VirtualBox Open Source Edition (OSE), as
11	* available from http://www.virtualbox.org. This file is free software;
12	* you can redistribute it and/or modify it under the terms of the GNU
13	* General Public License (GPL) as published by the Free Software
14	* Foundation, in version 2 as it comes in the "COPYING" file of the
15	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17	*
18	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
19	* Clara, CA 95054 USA or visit http://www.sun.com if you need
20	* additional information or have any questions.
21	*/
22
23	#include "mappings.h"
24	#include "vbsf.h"
25	#include "shflhandle.h"
26
27	#include <iprt/alloc.h>
28	#include <iprt/assert.h>
29	#include <iprt/fs.h>
30	#include <iprt/dir.h>
31	#include <iprt/file.h>
32	#include <iprt/path.h>
33	#include <iprt/string.h>
34	#include <iprt/uni.h>
35
36	#undef LogFlow
37	#define LogFlow Log
38
39	void vbsfStripLastComponent (char *pszFullPath, uint32_t cbFullPathRoot)
40	{
41	RTUNICP cp;
42
43	/* Do not strip root. */
44	char *s = pszFullPath + cbFullPathRoot;
45	char *delimSecondLast = NULL;
46	char *delimLast = NULL;
47
48	LogFlowFunc(("%s -> %s\n", pszFullPath, s));
49
50	for (;;)
51	{
52	cp = RTStrGetCp(s);
53
54	if (cp == RTUNICP_INVALID \|\| cp == 0)
55	{
56	break;
57	}
58
59	if (cp == RTPATH_DELIMITER)
60	{
61	if (delimLast != NULL)
62	{
63	delimSecondLast = delimLast;
64	}
65
66	delimLast = s;
67	}
68
69	s = RTStrNextCp (s);
70	}
71
72	if (cp == 0)
73	{
74	if (delimLast + 1 == s)
75	{
76	if (delimSecondLast)
77	{
78	*delimSecondLast = 0;
79	}
80	else if (delimLast)
81	{
82	*delimLast = 0;
83	}
84	}
85	else
86	{
87	if (delimLast)
88	{
89	*delimLast = 0;
90	}
91	}
92	}
93
94	LogFlowFunc(("%s, %s, %s\n", pszFullPath, delimLast, delimSecondLast));
95	}
96
97	static int vbsfCorrectCasing(char pszFullPath, char pszStartComponent)
98	{
99	PRTDIRENTRYEX pDirEntry = NULL;
100	uint32_t cbDirEntry, cbComponent;
101	int rc = VERR_FILE_NOT_FOUND;
102	PRTDIR hSearch = 0;
103	char szWildCard[4];
104
105	Log2(("vbsfCorrectCasing: %s %s\n", pszFullPath, pszStartComponent));
106
107	cbComponent = strlen(pszStartComponent);
108
109	cbDirEntry = 4096;
110	pDirEntry = (PRTDIRENTRYEX)RTMemAlloc(cbDirEntry);
111	if (pDirEntry == 0)
112	{
113	AssertFailed();
114	return VERR_NO_MEMORY;
115	}
116
117	/** @todo this is quite inefficient, especially for directories with many files */
118	Assert(pszFullPath < pszStartComponent-1);
119	Assert(*(pszStartComponent-1) == RTPATH_DELIMITER);
120	*(pszStartComponent-1) = 0;
121	strcpy(pDirEntry->szName, pszFullPath);
122	szWildCard[0] = RTPATH_DELIMITER;
123	szWildCard[1] = '*';
124	szWildCard[2] = 0;
125	strcat(pDirEntry->szName, szWildCard);
126
127	rc = RTDirOpenFiltered (&hSearch, pDirEntry->szName, RTDIRFILTER_WINNT);
128	*(pszStartComponent-1) = RTPATH_DELIMITER;
129	if (VBOX_FAILURE(rc))
130	goto end;
131
132	for(;;)
133	{
134	uint32_t cbDirEntrySize = cbDirEntry;
135
136	rc = RTDirReadEx(hSearch, pDirEntry, &cbDirEntrySize, RTFSOBJATTRADD_NOTHING);
137	if (rc == VERR_NO_MORE_FILES)
138	break;
139
140	if (VINF_SUCCESS != rc && rc != VWRN_NO_DIRENT_INFO)
141	{
142	AssertFailed();
143	if (rc != VERR_NO_TRANSLATION)
144	break;
145	else
146	continue;
147	}
148
149	Log2(("vbsfCorrectCasing: found %s\n", &pDirEntry->szName[0]));
150	if ( pDirEntry->cbName == cbComponent
151	&& !RTStrICmp(pszStartComponent, &pDirEntry->szName[0]))
152	{
153	Log(("Found original name %s (%s)\n", &pDirEntry->szName[0], pszStartComponent));
154	strcpy(pszStartComponent, &pDirEntry->szName[0]);
155	rc = VINF_SUCCESS;
156	break;
157	}
158	}
159
160	end:
161	if (VBOX_FAILURE(rc))
162	Log(("vbsfCorrectCasing %s failed with %d\n", pszStartComponent, rc));
163
164	if (pDirEntry)
165	RTMemFree(pDirEntry);
166
167	if (hSearch)
168	RTDirClose(hSearch);
169	return rc;
170	}
171
172	static int vbsfBuildFullPath (SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pPath,
173	uint32_t cbPath, char *ppszFullPath, uint32_t pcbFullPathRoot, bool fWildCard = false)
174	{
175	int rc = VINF_SUCCESS;
176
177	char *pszFullPath = NULL;
178
179	/* Query UCS2 root prefix for the path, cbRoot is the length in bytes including trailing (RTUTF16)0. */
180	uint32_t cbRoot = 0;
181	PCRTUTF16 pwszRoot = vbsfMappingsQueryHostRoot (root, &cbRoot);
182
183	if (!pwszRoot \|\| cbRoot == 0)
184	{
185	Log(("vbsfBuildFullPath: invalid root!\n"));
186	return VERR_INVALID_PARAMETER;
187	}
188
189	if (BIT_FLAG(pClient->fu32Flags, SHFL_CF_UTF8))
190	{
191	int rc;
192	char *utf8Root;
193
194	rc = RTUtf16ToUtf8 (pwszRoot, &utf8Root);
195	if (VBOX_SUCCESS (rc))
196	{
197	size_t cbUtf8Root, cbUtf8FullPath;
198	char *utf8FullPath;
199
200	cbUtf8Root = strlen (utf8Root);
201	cbUtf8FullPath = cbUtf8Root + 1 + pPath->u16Length + 1;
202	utf8FullPath = (char *) RTMemAllocZ (cbUtf8FullPath);
203
204	if (!utf8FullPath)
205	{
206	rc = VERR_NO_MEMORY;
207	*ppszFullPath = NULL;
208	Log(("RTMemAllocZ %x failed!!\n", cbUtf8FullPath));
209	}
210	else
211	{
212	memcpy (utf8FullPath, utf8Root, cbUtf8Root);
213	memcpy (utf8FullPath + cbUtf8Root + 1,
214	&pPath->String.utf8[0],
215	pPath->u16Length);
216
217	utf8FullPath[cbUtf8Root] = '/';
218	utf8FullPath[cbUtf8FullPath - 1] = 0;
219	pszFullPath = utf8FullPath;
220
221	if (pcbFullPathRoot)
222	pcbFullPathRoot = cbUtf8Root; / Must index the path delimiter. */
223	}
224
225	RTStrFree (utf8Root);
226	}
227	else
228	{
229	Log (("vbsfBuildFullPath: RTUtf16ToUtf8 failed with %Vrc\n", rc));
230	}
231	}
232	else
233	{
234	/* Client sends us UCS2, so convert it to UTF8. */
235	Log(("Root %ls path %.*ls\n", pwszRoot, pPath->u16Length/sizeof(pPath->String.ucs2[0]), pPath->String.ucs2));
236
237	/* Allocate buffer that will be able to contain
238	* the root prefix and the pPath converted to UTF8.
239	* Expect a 2 bytes UCS2 to be converted to 8 bytes UTF8
240	* in worst case.
241	*/
242	uint32_t cbFullPath = (cbRoot/sizeof (RTUTF16) + ShflStringLength (pPath)) * 4;
243
244	pszFullPath = (char *)RTMemAllocZ (cbFullPath);
245
246	if (!pszFullPath)
247	{
248	rc = VERR_NO_MEMORY;
249	}
250	else
251	{
252	uint32_t cb = cbFullPath;
253
254	rc = RTUtf16ToUtf8Ex (pwszRoot, RTSTR_MAX, &pszFullPath, cb, NULL);
255	if (VBOX_FAILURE(rc))
256	{
257	AssertFailed();
258	return rc;
259	}
260
261	char *dst = pszFullPath;
262
263	cbRoot = strlen(dst);
264	if (dst[cbRoot - 1] != RTPATH_DELIMITER)
265	{
266	dst[cbRoot] = RTPATH_DELIMITER;
267	cbRoot++;
268	}
269
270	if (pcbFullPathRoot)
271	pcbFullPathRoot = cbRoot - 1; / Must index the path delimiter. */
272
273	dst += cbRoot;
274	cb -= cbRoot;
275
276	if (pPath->u16Length)
277	{
278	/* Convert and copy components. */
279	PRTUTF16 src = &pPath->String.ucs2[0];
280
281	/* Correct path delimiters */
282	if (pClient->PathDelimiter != RTPATH_DELIMITER)
283	{
284	LogFlow(("Correct path delimiter in %ls\n", src));
285	while (*src)
286	{
287	if (*src == pClient->PathDelimiter)
288	*src = RTPATH_DELIMITER;
289	src++;
290	}
291	src = &pPath->String.ucs2[0];
292	LogFlow(("Corrected string %ls\n", src));
293	}
294	if (*src == RTPATH_DELIMITER)
295	src++; /* we already appended a delimiter to the first part */
296
297	rc = RTUtf16ToUtf8Ex (src, RTSTR_MAX, &dst, cb, NULL);
298	if (VBOX_FAILURE(rc))
299	{
300	AssertFailed();
301	return rc;
302	}
303
304	uint32_t l = strlen (dst);
305
306	cb -= l;
307	dst += l;
308
309	Assert(cb > 0);
310	}
311
312	/* Nul terminate the string */
313	*dst = 0;
314	}
315	}
316
317	if (VBOX_SUCCESS (rc))
318	{
319	/* When the host file system is case sensitive and the guest expects a case insensitive fs, then problems can occur */
320	if ( vbsfIsHostMappingCaseSensitive (root)
321	&& !vbsfIsGuestMappingCaseSensitive(root))
322	{
323	RTFSOBJINFO info;
324	char *pszWildCardComponent = NULL;
325
326	if (fWildCard)
327	{
328	/* strip off the last path component, that contains the wildcard(s) */
329	uint32_t len = strlen(pszFullPath);
330	char *src = pszFullPath + len - 1;
331
332	while(src > pszFullPath)
333	{
334	if (*src == RTPATH_DELIMITER)
335	break;
336	src--;
337	}
338	if (*src == RTPATH_DELIMITER)
339	{
340	bool fHaveWildcards = false;
341	char *temp = src;
342
343	while(*temp)
344	{
345	char uc = *temp;
346	if (uc == '*' \|\| uc == '?' \|\| uc == '>' \|\| uc == '<' \|\| uc == '"')
347	{
348	fHaveWildcards = true;
349	break;
350	}
351	temp++;
352	}
353
354	if (fHaveWildcards)
355	{
356	pszWildCardComponent = src;
357	*pszWildCardComponent = 0;
358	}
359	}
360	}
361
362	/** @todo don't check when creating files or directories; waste of time */
363	rc = RTPathQueryInfo(pszFullPath, &info, RTFSOBJATTRADD_NOTHING);
364	if (rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND)
365	{
366	uint32_t len = strlen(pszFullPath);
367	char *src = pszFullPath + len - 1;
368
369	Log(("Handle case insenstive guest fs on top of host case sensitive fs for %s\n", pszFullPath));
370
371	/* Find partial path that's valid */
372	while(src > pszFullPath)
373	{
374	if (*src == RTPATH_DELIMITER)
375	{
376	*src = 0;
377	rc = RTPathQueryInfo (pszFullPath, &info, RTFSOBJATTRADD_NOTHING);
378	*src = RTPATH_DELIMITER;
379	if (rc == VINF_SUCCESS)
380	{
381	#ifdef DEBUG
382	*src = 0;
383	Log(("Found valid partial path %s\n", pszFullPath));
384	*src = RTPATH_DELIMITER;
385	#endif
386	break;
387	}
388	}
389
390	src--;
391	}
392	Assert(*src == RTPATH_DELIMITER && VBOX_SUCCESS(rc));
393	if ( *src == RTPATH_DELIMITER
394	&& VBOX_SUCCESS(rc))
395	{
396	src++;
397	for(;;)
398	{
399	char *end = src;
400	bool fEndOfString = true;
401
402	while(*end)
403	{
404	if (*end == RTPATH_DELIMITER)
405	break;
406	end++;
407	}
408
409	if (*end == RTPATH_DELIMITER)
410	{
411	fEndOfString = false;
412	*end = 0;
413	rc = RTPathQueryInfo(src, &info, RTFSOBJATTRADD_NOTHING);
414	Assert(rc == VINF_SUCCESS \|\| rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND);
415	}
416	else
417	if (end == src)
418	rc = VINF_SUCCESS; /* trailing delimiter */
419	else
420	rc = VERR_FILE_NOT_FOUND;
421
422	if (rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND)
423	{
424	/* path component is invalid; try to correct the casing */
425	rc = vbsfCorrectCasing(pszFullPath, src);
426	if (VBOX_FAILURE(rc))
427	{
428	if (!fEndOfString)
429	end = RTPATH_DELIMITER; / restore the original full path */
430	break;
431	}
432	}
433
434	if (fEndOfString)
435	break;
436
437	*end = RTPATH_DELIMITER;
438	src = end + 1;
439	}
440	if (VBOX_FAILURE(rc))
441	Log(("Unable to find suitable component rc=%d\n", rc));
442	}
443	else
444	rc = VERR_FILE_NOT_FOUND;
445
446	}
447	if (pszWildCardComponent)
448	*pszWildCardComponent = RTPATH_DELIMITER;
449
450	/* might be a new file so don't fail here! */
451	rc = VINF_SUCCESS;
452	}
453	*ppszFullPath = pszFullPath;
454
455	LogFlow(("vbsfBuildFullPath: %s rc=%Vrc\n", pszFullPath, rc));
456	}
457
458	return rc;
459	}
460
461	static void vbsfFreeFullPath (char *pszFullPath)
462	{
463	RTMemFree (pszFullPath);
464	}
465
466	/**
467	* Convert shared folder create flags (see include/iprt/shflsvc.h) into iprt create flags.
468	*
469	* @returns iprt status code
470	* @param fShflFlags shared folder create flags
471	* @retval pfOpen iprt create flags
472	*/
473	static int vbsfConvertFileOpenFlags(unsigned fShflFlags, unsigned *pfOpen)
474	{
475	unsigned fOpen = 0;
476	int rc = VINF_SUCCESS;
477
478	switch (BIT_FLAG(fShflFlags, SHFL_CF_ACCESS_MASK_RW))
479	{
480	default:
481	case SHFL_CF_ACCESS_NONE:
482	{
483	/** @todo treat this as read access, but theoretically this could be a no access request. */
484	fOpen \|= RTFILE_O_READ;
485	Log(("FLAG: SHFL_CF_ACCESS_NONE\n"));
486	break;
487	}
488
489	case SHFL_CF_ACCESS_READ:
490	{
491	fOpen \|= RTFILE_O_READ;
492	Log(("FLAG: SHFL_CF_ACCESS_READ\n"));
493	break;
494	}
495
496	case SHFL_CF_ACCESS_WRITE:
497	{
498	fOpen \|= RTFILE_O_WRITE;
499	Log(("FLAG: SHFL_CF_ACCESS_WRITE\n"));
500	break;
501	}
502
503	case SHFL_CF_ACCESS_READWRITE:
504	{
505	fOpen \|= RTFILE_O_READWRITE;
506	Log(("FLAG: SHFL_CF_ACCESS_READWRITE\n"));
507	break;
508	}
509	}
510
511	/* Sharing mask */
512	switch (BIT_FLAG(fShflFlags, SHFL_CF_ACCESS_MASK_DENY))
513	{
514	default:
515	case SHFL_CF_ACCESS_DENYNONE:
516	fOpen \|= RTFILE_O_DENY_NONE;
517	Log(("FLAG: SHFL_CF_ACCESS_DENYNONE\n"));
518	break;
519
520	case SHFL_CF_ACCESS_DENYREAD:
521	fOpen \|= RTFILE_O_DENY_READ;
522	Log(("FLAG: SHFL_CF_ACCESS_DENYREAD\n"));
523	break;
524
525	case SHFL_CF_ACCESS_DENYWRITE:
526	fOpen \|= RTFILE_O_DENY_WRITE;
527	Log(("FLAG: SHFL_CF_ACCESS_DENYWRITE\n"));
528	break;
529
530	case SHFL_CF_ACCESS_DENYALL:
531	fOpen \|= RTFILE_O_DENY_ALL;
532	Log(("FLAG: SHFL_CF_ACCESS_DENYALL\n"));
533	break;
534	}
535
536	/* Open/Create action mask */
537	switch (BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_EXISTS))
538	{
539	case SHFL_CF_ACT_OPEN_IF_EXISTS:
540	if (SHFL_CF_ACT_CREATE_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
541	{
542	fOpen \|= RTFILE_O_OPEN_CREATE;
543	Log(("FLAGS: SHFL_CF_ACT_OPEN_IF_EXISTS and SHFL_CF_ACT_CREATE_IF_NEW\n"));
544	}
545	else if (SHFL_CF_ACT_FAIL_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
546	{
547	fOpen \|= RTFILE_O_OPEN;
548	Log(("FLAGS: SHFL_CF_ACT_OPEN_IF_EXISTS and SHFL_CF_ACT_FAIL_IF_NEW\n"));
549	}
550	else
551	{
552	Log(("FLAGS: invalid open/create action combination\n"));
553	rc = VERR_INVALID_PARAMETER;
554	}
555	break;
556	case SHFL_CF_ACT_FAIL_IF_EXISTS:
557	if (SHFL_CF_ACT_CREATE_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
558	{
559	fOpen \|= RTFILE_O_CREATE;
560	Log(("FLAGS: SHFL_CF_ACT_FAIL_IF_EXISTS and SHFL_CF_ACT_CREATE_IF_NEW\n"));
561	}
562	else
563	{
564	Log(("FLAGS: invalid open/create action combination\n"));
565	rc = VERR_INVALID_PARAMETER;
566	}
567	break;
568	case SHFL_CF_ACT_REPLACE_IF_EXISTS:
569	if (SHFL_CF_ACT_CREATE_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
570	{
571	fOpen \|= RTFILE_O_CREATE_REPLACE;
572	Log(("FLAGS: SHFL_CF_ACT_REPLACE_IF_EXISTS and SHFL_CF_ACT_CREATE_IF_NEW\n"));
573	}
574	else if (SHFL_CF_ACT_FAIL_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
575	{
576	fOpen \|= RTFILE_O_OPEN \| RTFILE_O_TRUNCATE;
577	Log(("FLAGS: SHFL_CF_ACT_REPLACE_IF_EXISTS and SHFL_CF_ACT_FAIL_IF_NEW\n"));
578	}
579	else
580	{
581	Log(("FLAGS: invalid open/create action combination\n"));
582	rc = VERR_INVALID_PARAMETER;
583	}
584	break;
585	case SHFL_CF_ACT_OVERWRITE_IF_EXISTS:
586	if (SHFL_CF_ACT_CREATE_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
587	{
588	fOpen \|= RTFILE_O_CREATE_REPLACE;
589	Log(("FLAGS: SHFL_CF_ACT_OVERWRITE_IF_EXISTS and SHFL_CF_ACT_CREATE_IF_NEW\n"));
590	}
591	else if (SHFL_CF_ACT_FAIL_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
592	{
593	fOpen \|= RTFILE_O_OPEN \| RTFILE_O_TRUNCATE;
594	Log(("FLAGS: SHFL_CF_ACT_OVERWRITE_IF_EXISTS and SHFL_CF_ACT_FAIL_IF_NEW\n"));
595	}
596	else
597	{
598	Log(("FLAGS: invalid open/create action combination\n"));
599	rc = VERR_INVALID_PARAMETER;
600	}
601	break;
602	default:
603	rc = VERR_INVALID_PARAMETER;
604	Log(("FLAG: SHFL_CF_ACT_MASK_IF_EXISTS - invalid parameter\n"));
605	}
606
607	if (RT_SUCCESS(rc))
608	{
609	*pfOpen = fOpen;
610	}
611	return rc;
612	}
613
614	/**
615	* Open a file or create and open a new one.
616	*
617	* @returns IPRT status code
618	* @param pszPath Path to the file or folder on the host.
619	* @param pParms->CreateFlags Creation or open parameters, see include/VBox/shflsvc.h
620	* @param pParms->Info When a new file is created this specifies the initial parameters.
621	* When a file is created or overwritten, it also specifies the
622	* initial size.
623	* @retval pParms->Result Shared folder status code, see include/VBox/shflsvc.h
624	* @retval pParms->Handle On success the (shared folder) handle of the file opened or
625	* created
626	* @retval pParms->Info On success the parameters of the file opened or created
627	*/
628	static int vbsfOpenFile (const char pszPath, SHFLCREATEPARMS pParms)
629	{
630	LogFlow(("vbsfOpenFile: pszPath = %s, pParms = %p\n", pszPath, pParms));
631	Log(("SHFL create flags %08x\n", pParms->CreateFlags));
632
633	SHFLHANDLE handle = SHFL_HANDLE_NIL;
634	SHFLFILEHANDLE *pHandle = 0;
635	/* Open or create a file. */
636	unsigned fOpen = 0;
637	bool fNoError = false;
638
639	int rc = vbsfConvertFileOpenFlags(pParms->CreateFlags, &fOpen);
640	if (RT_SUCCESS(rc))
641	{
642	handle = vbsfAllocFileHandle();
643	}
644	if (SHFL_HANDLE_NIL != handle)
645	{
646	rc = VERR_NO_MEMORY; /* If this fails - rewritten immediately on success. */
647	pHandle = (SHFLFILEHANDLE *)vbsfQueryHandle(handle, SHFL_HF_TYPE_FILE);
648	}
649	if (0 != pHandle)
650	{
651	rc = RTFileOpen(&pHandle->file.Handle, pszPath, fOpen);
652	}
653	if (RT_FAILURE (rc))
654	{
655	switch (rc)
656	{
657	case VERR_FILE_NOT_FOUND:
658	pParms->Result = SHFL_FILE_NOT_FOUND;
659
660	/* This actually isn't an error, so correct the rc before return later,
661	because the driver (VBoxSF.sys) expects rc = VINF_SUCCESS and checks the result code. */
662	fNoError = true;
663	break;
664	case VERR_PATH_NOT_FOUND:
665	pParms->Result = SHFL_PATH_NOT_FOUND;
666
667	/* This actually isn't an error, so correct the rc before return later,
668	because the driver (VBoxSF.sys) expects rc = VINF_SUCCESS and checks the result code. */
669	fNoError = true;
670	break;
671	case VERR_ALREADY_EXISTS:
672	RTFSOBJINFO info;
673
674	/** @todo Possible race left here. */
675	if (RT_SUCCESS(RTPathQueryInfo (pszPath, &info, RTFSOBJATTRADD_NOTHING)))
676	{
677	pParms->Info = info;
678	}
679	pParms->Result = SHFL_FILE_EXISTS;
680
681	/* This actually isn't an error, so correct the rc before return later,
682	because the driver (VBoxSF.sys) expects rc = VINF_SUCCESS and checks the result code. */
683	fNoError = true;
684	break;
685	default:
686	pParms->Result = SHFL_NO_RESULT;
687	}
688	}
689
690	if (RT_SUCCESS(rc))
691	{
692	/** @note The shared folder status code is very approximate, as the runtime
693	* does not really provide this information. */
694	pParms->Result = SHFL_FILE_EXISTS; /* We lost the information as to whether it was
695	created when we eliminated the race. */
696	if ( ( SHFL_CF_ACT_REPLACE_IF_EXISTS
697	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS))
698	\|\| ( SHFL_CF_ACT_OVERWRITE_IF_EXISTS
699	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS)))
700	{
701	/* For now, we do not treat a failure here as fatal. */
702	/* @todo Also set the size for SHFL_CF_ACT_CREATE_IF_NEW if
703	SHFL_CF_ACT_FAIL_IF_EXISTS is set. */
704	RTFileSetSize(pHandle->file.Handle, pParms->Info.cbObject);
705	pParms->Result = SHFL_FILE_REPLACED;
706	}
707	if ( ( SHFL_CF_ACT_FAIL_IF_EXISTS
708	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS))
709	\|\| ( SHFL_CF_ACT_CREATE_IF_NEW
710	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_NEW)))
711	{
712	pParms->Result = SHFL_FILE_CREATED;
713	}
714	#if 0
715	/* @todo */
716	/* Set new attributes. */
717	if ( ( SHFL_CF_ACT_REPLACE_IF_EXISTS
718	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS))
719	\|\| ( SHFL_CF_ACT_CREATE_IF_NEW
720	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_NEW)))
721	{
722	RTFileSetTimes(pHandle->file.Handle,
723	&pParms->Info.AccessTime,
724	&pParms->Info.ModificationTime,
725	&pParms->Info.ChangeTime,
726	&pParms->Info.BirthTime
727	);
728
729	RTFileSetMode (pHandle->file.Handle, pParms->Info.Attr.fMode);
730	}
731	#endif
732	RTFSOBJINFO info;
733
734	/* Get file information */
735	rc = RTFileQueryInfo (pHandle->file.Handle, &info, RTFSOBJATTRADD_NOTHING);
736	if (RT_SUCCESS(rc))
737	{
738	pParms->Info = info;
739	}
740	}
741	if (RT_FAILURE(rc))
742	{
743	if ( (0 != pHandle)
744	&& (NIL_RTFILE != pHandle->file.Handle)
745	&& (0 != pHandle->file.Handle))
746	{
747	RTFileClose(pHandle->file.Handle);
748	pHandle->file.Handle = NIL_RTFILE;
749	}
750	if (SHFL_HANDLE_NIL != handle)
751	{
752	vbsfFreeFileHandle (handle);
753	}
754	}
755	else
756	{
757	pParms->Handle = handle;
758	}
759
760	/* Report the driver that all is okay, we're done here */
761	if (fNoError)
762	rc = VINF_SUCCESS;
763
764	LogFlow(("vbsfOpenFile: rc = %Vrc\n", rc));
765	return rc;
766	}
767
768	/**
769	* Open a folder or create and open a new one.
770	*
771	* @returns IPRT status code
772	* @param pszPath Path to the file or folder on the host.
773	* @param pParms->CreateFlags Creation or open parameters, see include/VBox/shflsvc.h
774	* @retval pParms->Result Shared folder status code, see include/VBox/shflsvc.h
775	* @retval pParms->Handle On success the (shared folder) handle of the folder opened or
776	* created
777	* @retval pParms->Info On success the parameters of the folder opened or created
778	*
779	* @note folders are created with fMode = 0777
780	*/
781	static int vbsfOpenDir (const char pszPath, SHFLCREATEPARMS pParms)
782	{
783	LogFlow(("vbsfOpenDir: pszPath = %s, pParms = %p\n", pszPath, pParms));
784	Log(("SHFL create flags %08x\n", pParms->CreateFlags));
785
786	int rc = VERR_NO_MEMORY;
787	SHFLHANDLE handle = vbsfAllocDirHandle();
788	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(handle, SHFL_HF_TYPE_DIR);
789	if (0 != pHandle)
790	{
791	rc = VINF_SUCCESS;
792	pParms->Result = SHFL_FILE_EXISTS; /* May be overwritten with SHFL_FILE_CREATED. */
793	/** @todo Can anyone think of a sensible, race-less way to do this? Although
794	I suspect that the race is inherent, due to the API available... */
795	/* Try to create the folder first if "create if new" is specified. If this
796	fails, and "open if exists" is specified, then we ignore the failure and try
797	to open the folder anyway. */
798	if ( SHFL_CF_ACT_CREATE_IF_NEW
799	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_NEW))
800	{
801	/** @todo render supplied attributes.
802	* bird: The guest should specify this. For windows guests RTFS_DOS_DIRECTORY should suffice. */
803	RTFMODE fMode = 0777;
804
805	pParms->Result = SHFL_FILE_CREATED;
806	rc = RTDirCreate(pszPath, fMode);
807	if (RT_FAILURE (rc))
808	{
809	switch (rc)
810	{
811	case VERR_ALREADY_EXISTS:
812	pParms->Result = SHFL_FILE_EXISTS;
813	break;
814	case VERR_PATH_NOT_FOUND:
815	pParms->Result = SHFL_PATH_NOT_FOUND;
816	break;
817	default:
818	pParms->Result = SHFL_NO_RESULT;
819	}
820	}
821	}
822	if ( RT_SUCCESS(rc)
823	\|\| (SHFL_CF_ACT_OPEN_IF_EXISTS == BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS)))
824	{
825	/* Open the directory now */
826	rc = RTDirOpen (&pHandle->dir.Handle, pszPath);
827	if (RT_SUCCESS(rc))
828	{
829	RTFSOBJINFO info;
830
831	rc = RTDirQueryInfo (pHandle->dir.Handle, &info, RTFSOBJATTRADD_NOTHING);
832	if (RT_SUCCESS(rc))
833	{
834	pParms->Info = info;
835	}
836	}
837	else
838	{
839	switch (rc)
840	{
841	case VERR_FILE_NOT_FOUND: /* Does this make sense? */
842	pParms->Result = SHFL_FILE_NOT_FOUND;
843	break;
844	case VERR_PATH_NOT_FOUND:
845	pParms->Result = SHFL_PATH_NOT_FOUND;
846	break;
847	case VERR_ACCESS_DENIED:
848	pParms->Result = SHFL_FILE_EXISTS;
849	break;
850	default:
851	pParms->Result = SHFL_NO_RESULT;
852	}
853	}
854	}
855	}
856	if (RT_FAILURE(rc))
857	{
858	if ( (0 != pHandle)
859	&& (0 != pHandle->dir.Handle))
860	{
861	RTDirClose(pHandle->dir.Handle);
862	pHandle->dir.Handle = 0;
863	}
864	if (SHFL_HANDLE_NIL != handle)
865	{
866	vbsfFreeFileHandle (handle);
867	}
868	}
869	else
870	{
871	pParms->Handle = handle;
872	}
873	LogFlow(("vbsfOpenDir: rc = %Vrc\n", rc));
874	return rc;
875	}
876
877	static int vbsfCloseDir (SHFLFILEHANDLE *pHandle)
878	{
879	int rc = VINF_SUCCESS;
880
881	LogFlow(("vbsfCloseDir: Handle = %08X Search Handle = %08X\n",
882	pHandle->dir.Handle, pHandle->dir.SearchHandle));
883
884	RTDirClose (pHandle->dir.Handle);
885
886	if (pHandle->dir.SearchHandle)
887	RTDirClose(pHandle->dir.SearchHandle);
888
889	if (pHandle->dir.pLastValidEntry)
890	{
891	RTMemFree(pHandle->dir.pLastValidEntry);
892	pHandle->dir.pLastValidEntry = NULL;
893	}
894
895	LogFlow(("vbsfCloseDir: rc = %d\n", rc));
896
897	return rc;
898	}
899
900
901	static int vbsfCloseFile (SHFLFILEHANDLE *pHandle)
902	{
903	int rc = VINF_SUCCESS;
904
905	LogFlow(("vbsfCloseFile: Handle = %08X\n",
906	pHandle->file.Handle));
907
908	rc = RTFileClose (pHandle->file.Handle);
909
910	LogFlow(("vbsfCloseFile: rc = %d\n", rc));
911
912	return rc;
913	}
914
915	/**
916	* Look up file or folder information by host path.
917	*
918	* @returns iprt status code (currently VINF_SUCCESS)
919	* @param pszFullPath The path of the file to be looked up
920	* @retval pParms->Result Status of the operation (success or error)
921	* @retval pParms->Info On success, information returned about the file
922	*/
923	static int vbsfLookupFile(char pszPath, SHFLCREATEPARMS pParms)
924	{
925	RTFSOBJINFO info;
926	int rc;
927
928	rc = RTPathQueryInfo (pszPath, &info, RTFSOBJATTRADD_NOTHING);
929	LogFlow(("SHFL_CF_LOOKUP\n"));
930	/* Client just wants to know if the object exists. */
931	switch (rc)
932	{
933	case VINF_SUCCESS:
934	{
935	pParms->Info = info;
936	pParms->Result = SHFL_FILE_EXISTS;
937	break;
938	}
939
940	case VERR_FILE_NOT_FOUND:
941	{
942	pParms->Result = SHFL_FILE_NOT_FOUND;
943	rc = VINF_SUCCESS;
944	break;
945	}
946
947	case VERR_PATH_NOT_FOUND:
948	{
949	pParms->Result = SHFL_PATH_NOT_FOUND;
950	rc = VINF_SUCCESS;
951	break;
952	}
953	}
954	return rc;
955	}
956
957	/**
958	* Create or open a file or folder. Perform character set and case
959	* conversion on the file name if necessary.
960	*
961	* @returns IPRT status code, but see note below
962	* @param pClient Data structure describing the client accessing the shared
963	* folder
964	* @param root The index of the shared folder in the table of mappings.
965	* The host path of the shared folder is found using this.
966	* @param pPath The path of the file or folder relative to the host path
967	* indexed by root.
968	* @param cbPath Presumably the length of the path in pPath. Actually
969	* ignored, as pPath contains a length parameter.
970	* @param pParms->Info If a new file is created or an old one overwritten, set
971	* these attributes
972	* @retval pParms->Result Shared folder result code, see include/VBox/shflsvc.h
973	* @retval pParms->Handle Shared folder handle to the newly opened file
974	* @retval pParms->Info Attributes of the file or folder opened
975	*
976	* @note This function returns success if a "non-exceptional" error occurred,
977	* such as "no such file". In this case, the caller should check the
978	* pParms->Result return value and whether pParms->Handle is valid.
979	*/
980	int vbsfCreate (SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pPath, uint32_t cbPath, SHFLCREATEPARMS *pParms)
981	{
982	int rc = VINF_SUCCESS;
983
984	LogFlow(("vbsfCreate: pClient = %p, pPath = %p, cbPath = %d, pParms = %p CreateFlags=%x\n",
985	pClient, pPath, cbPath, pParms, pParms->CreateFlags));
986
987	/* Check the client access rights to the root. */
988	/** @todo */
989
990	/* Build a host full path for the given path, handle file name case issues (if the guest
991	* expects case-insensitive paths but the host is case-sensitive) and convert ucs2 to utf8 if
992	* necessary.
993	*/
994	char *pszFullPath = NULL;
995	uint32_t cbFullPathRoot = 0;
996
997	rc = vbsfBuildFullPath (pClient, root, pPath, cbPath, &pszFullPath, &cbFullPathRoot);
998
999	if (VBOX_SUCCESS (rc))
1000	{
1001	/* Reset return values in case client forgot to do so. */
1002	pParms->Result = SHFL_NO_RESULT;
1003	pParms->Handle = SHFL_HANDLE_NIL;
1004
1005	if (BIT_FLAG(pParms->CreateFlags, SHFL_CF_LOOKUP))
1006	{
1007	rc = vbsfLookupFile(pszFullPath, pParms);
1008	}
1009	else
1010	{
1011	/* Query path information. */
1012	RTFSOBJINFO info;
1013
1014	rc = RTPathQueryInfo (pszFullPath, &info, RTFSOBJATTRADD_NOTHING);
1015	LogFlow(("RTPathQueryInfo returned %Vrc\n", rc));
1016
1017	if (RT_SUCCESS(rc))
1018	{
1019	/* Mark it as a directory in case the caller didn't. */
1020	/**
1021	* @todo I left this in in order not to change the behaviour of the
1022	* function too much. Is it really needed, and should it really be
1023	* here?
1024	*/
1025	if (BIT_FLAG(info.Attr.fMode, RTFS_DOS_DIRECTORY))
1026	{
1027	pParms->CreateFlags \|= SHFL_CF_DIRECTORY;
1028	}
1029
1030	/**
1031	* @todo This should be in the Windows Guest Additions, as no-one else
1032	* needs it.
1033	*/
1034	if (BIT_FLAG(pParms->CreateFlags, SHFL_CF_OPEN_TARGET_DIRECTORY))
1035	{
1036	vbsfStripLastComponent (pszFullPath, cbFullPathRoot);
1037	pParms->CreateFlags &= ~SHFL_CF_ACT_MASK_IF_EXISTS;
1038	pParms->CreateFlags &= ~SHFL_CF_ACT_MASK_IF_NEW;
1039	pParms->CreateFlags \|= SHFL_CF_DIRECTORY;
1040	pParms->CreateFlags \|= SHFL_CF_ACT_OPEN_IF_EXISTS;
1041	pParms->CreateFlags \|= SHFL_CF_ACT_FAIL_IF_NEW;
1042	}
1043	}
1044
1045	rc = VINF_SUCCESS;
1046
1047	/* write access requested? */
1048	if (pParms->CreateFlags & ( SHFL_CF_ACT_REPLACE_IF_EXISTS
1049	\| SHFL_CF_ACT_OVERWRITE_IF_EXISTS
1050	\| SHFL_CF_ACT_CREATE_IF_NEW
1051	\| SHFL_CF_ACCESS_WRITE))
1052	{
1053	/* is the guest allowed to write to this share? */
1054	bool fWritable;
1055	rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
1056	if (RT_FAILURE(rc) \|\| !fWritable)
1057	rc = VERR_WRITE_PROTECT;
1058	}
1059
1060	if (RT_SUCCESS(rc))
1061	{
1062	if (BIT_FLAG(pParms->CreateFlags, SHFL_CF_DIRECTORY))
1063	{
1064	rc = vbsfOpenDir (pszFullPath, pParms);
1065	}
1066	else
1067	{
1068	rc = vbsfOpenFile (pszFullPath, pParms);
1069	}
1070	}
1071	}
1072
1073	/* free the path string */
1074	vbsfFreeFullPath(pszFullPath);
1075	}
1076
1077	Log(("vbsfCreate: handle = %RX64 rc = %Vrc result=%x\n", (uint64_t)pParms->Handle, rc, pParms->Result));
1078
1079	return rc;
1080	}
1081
1082	int vbsfClose (SHFLCLIENTDATA *pClient, SHFLROOT root, SHFLHANDLE Handle)
1083	{
1084	int rc = VINF_SUCCESS;
1085
1086	LogFlow(("vbsfClose: pClient = %p, Handle = %RX64\n",
1087	pClient, Handle));
1088
1089	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR\|SHFL_HF_TYPE_FILE);
1090	Assert(pHandle);
1091	if (!pHandle)
1092	return VERR_INVALID_HANDLE;
1093
1094	switch (ShflHandleType (&pHandle->Header))
1095	{
1096	case SHFL_HF_TYPE_DIR:
1097	{
1098	rc = vbsfCloseDir (pHandle);
1099	break;
1100	}
1101	case SHFL_HF_TYPE_FILE:
1102	{
1103	rc = vbsfCloseFile (pHandle);
1104	break;
1105	}
1106	default:
1107	AssertFailed();
1108	break;
1109	}
1110	vbsfFreeFileHandle(Handle);
1111
1112	Log(("vbsfClose: rc = %Rrc\n", rc));
1113
1114	return rc;
1115	}
1116
1117	int vbsfRead (SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint64_t offset, uint32_t pcbBuffer, uint8_t *pBuffer)
1118	{
1119	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1120	size_t count = 0;
1121	int rc;
1122
1123	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0)
1124	{
1125	AssertFailed();
1126	return VERR_INVALID_PARAMETER;
1127	}
1128
1129	Log(("vbsfRead %RX64 offset %RX64 bytes %x\n", Handle, offset, *pcbBuffer));
1130
1131	if (*pcbBuffer == 0)
1132	return VINF_SUCCESS; /* @todo correct? */
1133
1134
1135	rc = RTFileSeek(pHandle->file.Handle, offset, RTFILE_SEEK_BEGIN, NULL);
1136	if (rc != VINF_SUCCESS)
1137	{
1138	AssertRC(rc);
1139	return rc;
1140	}
1141
1142	rc = RTFileRead(pHandle->file.Handle, pBuffer, *pcbBuffer, &count);
1143	*pcbBuffer = (uint32_t)count;
1144	Log(("RTFileRead returned %Vrc bytes read %x\n", rc, count));
1145	return rc;
1146	}
1147
1148	int vbsfWrite (SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint64_t offset, uint32_t pcbBuffer, uint8_t *pBuffer)
1149	{
1150	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1151	size_t count = 0;
1152	int rc;
1153
1154	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0)
1155	{
1156	AssertFailed();
1157	return VERR_INVALID_PARAMETER;
1158	}
1159
1160	Log(("vbsfWrite %RX64 offset %RX64 bytes %x\n", Handle, offset, *pcbBuffer));
1161
1162	/* Is the guest allowed to write to this share?
1163	* XXX Actually this check was still done in vbsfCreate() -- RTFILE_O_WRITE cannot be set if vbsfMappingsQueryWritable() failed. */
1164	bool fWritable;
1165	rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
1166	if (RT_FAILURE(rc) \|\| !fWritable)
1167	return VERR_WRITE_PROTECT;
1168
1169	if (*pcbBuffer == 0)
1170	return VINF_SUCCESS; /** @todo correct? */
1171
1172	rc = RTFileSeek(pHandle->file.Handle, offset, RTFILE_SEEK_BEGIN, NULL);
1173	if (rc != VINF_SUCCESS)
1174	{
1175	AssertRC(rc);
1176	return rc;
1177	}
1178
1179	rc = RTFileWrite(pHandle->file.Handle, pBuffer, *pcbBuffer, &count);
1180	*pcbBuffer = (uint32_t)count;
1181	Log(("RTFileWrite returned %Vrc bytes written %x\n", rc, count));
1182	return rc;
1183	}
1184
1185
1186	int vbsfFlush(SHFLCLIENTDATA *pClient, SHFLROOT root, SHFLHANDLE Handle)
1187	{
1188	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1189	int rc = VINF_SUCCESS;
1190
1191	if (pHandle == 0)
1192	{
1193	AssertFailed();
1194	return VERR_INVALID_HANDLE;
1195	}
1196
1197	Log(("vbsfFlush %RX64\n", Handle));
1198	rc = RTFileFlush(pHandle->file.Handle);
1199	AssertRC(rc);
1200	return rc;
1201	}
1202
1203	int vbsfDirList(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, SHFLSTRING pPath, uint32_t flags, uint32_t pcbBuffer, uint8_t pBuffer,
1204	uint32_t pIndex, uint32_t pcFiles)
1205	{
1206	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR);
1207	PRTDIRENTRYEX pDirEntry = 0, pDirEntryOrg;
1208	uint32_t cbDirEntry, cbBufferOrg;
1209	int rc = VINF_SUCCESS;
1210	PSHFLDIRINFO pSFDEntry;
1211	PRTUTF16 pwszString;
1212	PRTDIR DirHandle;
1213	bool fUtf8;
1214
1215	fUtf8 = BIT_FLAG(pClient->fu32Flags, SHFL_CF_UTF8) != 0;
1216
1217	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0)
1218	{
1219	AssertFailed();
1220	return VERR_INVALID_PARAMETER;
1221	}
1222	Assert(pIndex && *pIndex == 0);
1223	DirHandle = pHandle->dir.Handle;
1224
1225	cbDirEntry = 4096;
1226	pDirEntryOrg = pDirEntry = (PRTDIRENTRYEX)RTMemAlloc(cbDirEntry);
1227	if (pDirEntry == 0)
1228	{
1229	AssertFailed();
1230	return VERR_NO_MEMORY;
1231	}
1232
1233	cbBufferOrg = *pcbBuffer;
1234	*pcbBuffer = 0;
1235	pSFDEntry = (PSHFLDIRINFO)pBuffer;
1236
1237	pIndex = 1; / not yet complete */
1238	*pcFiles = 0;
1239
1240	if (pPath)
1241	{
1242	if (pHandle->dir.SearchHandle == 0)
1243	{
1244	/* Build a host full path for the given path
1245	* and convert ucs2 to utf8 if necessary.
1246	*/
1247	char *pszFullPath = NULL;
1248
1249	Assert(pHandle->dir.pLastValidEntry == 0);
1250
1251	rc = vbsfBuildFullPath (pClient, root, pPath, pPath->u16Size, &pszFullPath, NULL, true);
1252
1253	if (VBOX_SUCCESS (rc))
1254	{
1255	rc = RTDirOpenFiltered (&pHandle->dir.SearchHandle, pszFullPath, RTDIRFILTER_WINNT);
1256
1257	/* free the path string */
1258	vbsfFreeFullPath(pszFullPath);
1259
1260	if (VBOX_FAILURE (rc))
1261	goto end;
1262	}
1263	else
1264	goto end;
1265	}
1266	Assert(pHandle->dir.SearchHandle);
1267	DirHandle = pHandle->dir.SearchHandle;
1268	}
1269
1270	while(cbBufferOrg)
1271	{
1272	uint32_t cbDirEntrySize = cbDirEntry;
1273	uint32_t cbNeeded;
1274
1275	/* Do we still have a valid last entry for the active search? If so, then return it here */
1276	if (pHandle->dir.pLastValidEntry)
1277	{
1278	pDirEntry = pHandle->dir.pLastValidEntry;
1279	}
1280	else
1281	{
1282	pDirEntry = pDirEntryOrg;
1283
1284	rc = RTDirReadEx(DirHandle, pDirEntry, &cbDirEntrySize, RTFSOBJATTRADD_NOTHING);
1285	if (rc == VERR_NO_MORE_FILES)
1286	{
1287	pIndex = 0; / listing completed */
1288	break;
1289	}
1290
1291	if (VINF_SUCCESS != rc && rc != VWRN_NO_DIRENT_INFO)
1292	{
1293	AssertFailed();
1294	if (rc != VERR_NO_TRANSLATION)
1295	break;
1296	else
1297	continue;
1298	}
1299	}
1300
1301	cbNeeded = RT_OFFSETOF (SHFLDIRINFO, name.String);
1302	if (fUtf8)
1303	cbNeeded += pDirEntry->cbName + 1;
1304	else
1305	/* Overestimating, but that's ok */
1306	cbNeeded += (pDirEntry->cbName + 1) * 2;
1307
1308	if (cbBufferOrg < cbNeeded)
1309	{
1310	/* No room, so save this directory entry, or else it's lost forever */
1311	pHandle->dir.pLastValidEntry = pDirEntry;
1312
1313	if (*pcFiles == 0)
1314	{
1315	AssertFailed();
1316	return VINF_BUFFER_OVERFLOW; /* Return directly and don't free pDirEntry */
1317	}
1318	return VINF_SUCCESS; /* Return directly and don't free pDirEntry */
1319	}
1320
1321	pSFDEntry->Info = pDirEntry->Info;
1322	pSFDEntry->cucShortName = 0;
1323
1324	if (fUtf8)
1325	{
1326	void src, dst;
1327
1328	src = &pDirEntry->szName[0];
1329	dst = &pSFDEntry->name.String.utf8[0];
1330
1331	memcpy (dst, src, pDirEntry->cbName + 1);
1332
1333	pSFDEntry->name.u16Size = pDirEntry->cbName + 1;
1334	pSFDEntry->name.u16Length = pDirEntry->cbName;
1335	}
1336	else
1337	{
1338	pSFDEntry->name.String.ucs2[0] = 0;
1339	pwszString = pSFDEntry->name.String.ucs2;
1340	int rc2 = RTStrToUtf16Ex(pDirEntry->szName, RTSTR_MAX, &pwszString, pDirEntry->cbName+1, NULL);
1341	AssertRC(rc2);
1342
1343	pSFDEntry->name.u16Length = RTUtf16Len (pSFDEntry->name.String.ucs2) * 2;
1344	pSFDEntry->name.u16Size = pSFDEntry->name.u16Length + 2;
1345
1346	Log(("SHFL: File name size %d\n", pSFDEntry->name.u16Size));
1347	Log(("SHFL: File name %ls\n", &pSFDEntry->name.String.ucs2));
1348
1349	// adjust cbNeeded (it was overestimated before)
1350	cbNeeded = RT_OFFSETOF (SHFLDIRINFO, name.String) + pSFDEntry->name.u16Size;
1351	}
1352
1353	pSFDEntry = (PSHFLDIRINFO)((uintptr_t)pSFDEntry + cbNeeded);
1354	*pcbBuffer += cbNeeded;
1355	cbBufferOrg-= cbNeeded;
1356
1357	*pcFiles += 1;
1358
1359	/* Free the saved last entry, that we've just returned */
1360	if (pHandle->dir.pLastValidEntry)
1361	{
1362	RTMemFree(pHandle->dir.pLastValidEntry);
1363	pHandle->dir.pLastValidEntry = NULL;
1364	}
1365
1366	if (flags & SHFL_LIST_RETURN_ONE)
1367	break; /* we're done */
1368	}
1369	Assert(rc != VINF_SUCCESS \|\| *pcbBuffer > 0);
1370
1371	end:
1372	if (pDirEntry)
1373	RTMemFree(pDirEntry);
1374
1375	return rc;
1376	}
1377
1378	int vbsfQueryFileInfo(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1379	{
1380	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR\|SHFL_HF_TYPE_FILE);
1381	int rc = VINF_SUCCESS;
1382	RTFSOBJINFO pObjInfo = (RTFSOBJINFO )pBuffer;
1383
1384
1385	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pObjInfo == 0 \|\| *pcbBuffer < sizeof(RTFSOBJINFO))
1386	{
1387	AssertFailed();
1388	return VERR_INVALID_PARAMETER;
1389	}
1390
1391	/* @todo other options */
1392	Assert(flags == (SHFL_INFO_GET\|SHFL_INFO_FILE));
1393
1394	*pcbBuffer = 0;
1395
1396	if (pHandle->Header.u32Flags & SHFL_HF_TYPE_DIR)
1397	{
1398	rc = RTDirQueryInfo(pHandle->dir.Handle, pObjInfo, RTFSOBJATTRADD_NOTHING);
1399	}
1400	else
1401	{
1402	rc = RTFileQueryInfo(pHandle->file.Handle, pObjInfo, RTFSOBJATTRADD_NOTHING);
1403	}
1404	if (rc == VINF_SUCCESS)
1405	{
1406	*pcbBuffer = sizeof(RTFSOBJINFO);
1407	}
1408	else
1409	AssertFailed();
1410
1411	return rc;
1412	}
1413
1414	static int vbsfSetFileInfo(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1415	{
1416	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR\|SHFL_HF_TYPE_FILE);
1417	int rc = VINF_SUCCESS;
1418	RTFSOBJINFO *pSFDEntry;
1419
1420	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0 \|\| *pcbBuffer < sizeof(RTFSOBJINFO))
1421	{
1422	AssertFailed();
1423	return VERR_INVALID_PARAMETER;
1424	}
1425
1426	*pcbBuffer = 0;
1427	pSFDEntry = (RTFSOBJINFO *)pBuffer;
1428
1429	Assert(flags == (SHFL_INFO_SET \| SHFL_INFO_FILE));
1430
1431	/* Change only the time values that are not zero */
1432	if (pHandle->Header.u32Flags & SHFL_HF_TYPE_DIR)
1433	{
1434	rc = RTDirSetTimes(pHandle->dir.Handle,
1435	(RTTimeSpecGetNano(&pSFDEntry->AccessTime)) ? &pSFDEntry->AccessTime : NULL,
1436	(RTTimeSpecGetNano(&pSFDEntry->ModificationTime)) ? &pSFDEntry->ModificationTime: NULL,
1437	(RTTimeSpecGetNano(&pSFDEntry->ChangeTime)) ? &pSFDEntry->ChangeTime: NULL,
1438	(RTTimeSpecGetNano(&pSFDEntry->BirthTime)) ? &pSFDEntry->BirthTime: NULL
1439	);
1440	}
1441	else
1442	{
1443	rc = RTFileSetTimes(pHandle->file.Handle,
1444	(RTTimeSpecGetNano(&pSFDEntry->AccessTime)) ? &pSFDEntry->AccessTime : NULL,
1445	(RTTimeSpecGetNano(&pSFDEntry->ModificationTime)) ? &pSFDEntry->ModificationTime: NULL,
1446	(RTTimeSpecGetNano(&pSFDEntry->ChangeTime)) ? &pSFDEntry->ChangeTime: NULL,
1447	(RTTimeSpecGetNano(&pSFDEntry->BirthTime)) ? &pSFDEntry->BirthTime: NULL
1448	);
1449	}
1450	if (rc != VINF_SUCCESS)
1451	{
1452	Log(("RTFileSetTimes failed with %Vrc\n", rc));
1453	Log(("AccessTime %VX64\n", RTTimeSpecGetNano(&pSFDEntry->AccessTime)));
1454	Log(("ModificationTime %VX64\n", RTTimeSpecGetNano(&pSFDEntry->ModificationTime)));
1455	Log(("ChangeTime %VX64\n", RTTimeSpecGetNano(&pSFDEntry->ChangeTime)));
1456	Log(("BirthTime %VX64\n", RTTimeSpecGetNano(&pSFDEntry->AccessTime)));
1457	/* temporary hack */
1458	rc = VINF_SUCCESS;
1459	}
1460
1461	if (pHandle->Header.u32Flags & SHFL_HF_TYPE_FILE)
1462	{
1463	/* Change file attributes if necessary */
1464	if (pSFDEntry->Attr.fMode)
1465	{
1466	rc = RTFileSetMode((RTFILE)pHandle->file.Handle, pSFDEntry->Attr.fMode);
1467	if (rc != VINF_SUCCESS)
1468	{
1469	Log(("RTFileSetMode %x failed with %Vrc\n", pSFDEntry->Attr.fMode, rc));
1470	/* silent failure, because this tends to fail with e.g. windows guest & linux host */
1471	rc = VINF_SUCCESS;
1472	}
1473	}
1474	}
1475
1476	if (rc == VINF_SUCCESS)
1477	{
1478	uint32_t bufsize = sizeof(*pSFDEntry);
1479
1480	rc = vbsfQueryFileInfo(pClient, root, Handle, SHFL_INFO_GET\|SHFL_INFO_FILE, &bufsize, (uint8_t *)pSFDEntry);
1481	if (rc == VINF_SUCCESS)
1482	{
1483	*pcbBuffer = sizeof(RTFSOBJINFO);
1484	}
1485	else
1486	AssertFailed();
1487	}
1488
1489	return rc;
1490	}
1491
1492
1493	static int vbsfSetEndOfFile(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1494	{
1495	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1496	int rc = VINF_SUCCESS;
1497	RTFSOBJINFO *pSFDEntry;
1498
1499	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0 \|\| *pcbBuffer < sizeof(RTFSOBJINFO))
1500	{
1501	AssertFailed();
1502	return VERR_INVALID_PARAMETER;
1503	}
1504
1505	*pcbBuffer = 0;
1506	pSFDEntry = (RTFSOBJINFO *)pBuffer;
1507
1508	if (flags & SHFL_INFO_SIZE)
1509	{
1510	rc = RTFileSetSize(pHandle->file.Handle, pSFDEntry->cbObject);
1511	if (rc != VINF_SUCCESS)
1512	AssertFailed();
1513	}
1514	else
1515	AssertFailed();
1516
1517	if (rc == VINF_SUCCESS)
1518	{
1519	RTFSOBJINFO fileinfo;
1520
1521	/* Query the new object info and return it */
1522	rc = RTFileQueryInfo(pHandle->file.Handle, &fileinfo, RTFSOBJATTRADD_NOTHING);
1523	if (rc == VINF_SUCCESS)
1524	{
1525	*pSFDEntry = fileinfo;
1526	*pcbBuffer = sizeof(RTFSOBJINFO);
1527	}
1528	else
1529	AssertFailed();
1530	}
1531
1532	return rc;
1533	}
1534
1535	int vbsfQueryVolumeInfo(SHFLCLIENTDATA pClient, SHFLROOT root, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1536	{
1537	int rc = VINF_SUCCESS;
1538	SHFLVOLINFO *pSFDEntry;
1539	char *pszFullPath = NULL;
1540	SHFLSTRING dummy;
1541
1542	if (pcbBuffer == 0 \|\| pBuffer == 0 \|\| *pcbBuffer < sizeof(SHFLVOLINFO))
1543	{
1544	AssertFailed();
1545	return VERR_INVALID_PARAMETER;
1546	}
1547
1548	/* @todo other options */
1549	Assert(flags == (SHFL_INFO_GET\|SHFL_INFO_VOLUME));
1550
1551	*pcbBuffer = 0;
1552	pSFDEntry = (PSHFLVOLINFO)pBuffer;
1553
1554	ShflStringInitBuffer(&dummy, sizeof(dummy));
1555	rc = vbsfBuildFullPath (pClient, root, &dummy, 0, &pszFullPath, NULL);
1556
1557	if (VBOX_SUCCESS (rc))
1558	{
1559	rc = RTFsQuerySizes(pszFullPath, &pSFDEntry->ullTotalAllocationBytes, &pSFDEntry->ullAvailableAllocationBytes, &pSFDEntry->ulBytesPerAllocationUnit, &pSFDEntry->ulBytesPerSector);
1560	if (rc != VINF_SUCCESS)
1561	goto exit;
1562
1563	rc = RTFsQuerySerial(pszFullPath, &pSFDEntry->ulSerial);
1564	if (rc != VINF_SUCCESS)
1565	goto exit;
1566
1567	rc = RTFsQueryProperties(pszFullPath, &pSFDEntry->fsProperties);
1568	if (rc != VINF_SUCCESS)
1569	goto exit;
1570
1571	*pcbBuffer = sizeof(SHFLVOLINFO);
1572	}
1573	else AssertFailed();
1574
1575	exit:
1576	AssertMsg(rc == VINF_SUCCESS, ("failure: rc = %Vrc\n", rc));
1577	/* free the path string */
1578	vbsfFreeFullPath(pszFullPath);
1579	return rc;
1580	}
1581
1582	int vbsfQueryFSInfo(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1583	{
1584	if (pcbBuffer == 0 \|\| pBuffer == 0)
1585	{
1586	AssertFailed();
1587	return VERR_INVALID_PARAMETER;
1588	}
1589
1590	if (flags & SHFL_INFO_FILE)
1591	return vbsfQueryFileInfo(pClient, root, Handle, flags, pcbBuffer, pBuffer);
1592
1593	if (flags & SHFL_INFO_VOLUME)
1594	return vbsfQueryVolumeInfo(pClient, root, flags, pcbBuffer, pBuffer);
1595
1596	AssertFailed();
1597	return VERR_INVALID_PARAMETER;
1598	}
1599
1600	int vbsfSetFSInfo(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1601	{
1602	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR\|SHFL_HF_TYPE_FILE\|SHFL_HF_TYPE_VOLUME);
1603
1604	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0)
1605	{
1606	AssertFailed();
1607	return VERR_INVALID_PARAMETER;
1608	}
1609
1610	/* is the guest allowed to write to this share? */
1611	bool fWritable;
1612	int rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
1613	if (RT_FAILURE(rc) \|\| !fWritable)
1614	return VERR_WRITE_PROTECT;
1615
1616	if (flags & SHFL_INFO_FILE)
1617	return vbsfSetFileInfo(pClient, root, Handle, flags, pcbBuffer, pBuffer);
1618
1619	if (flags & SHFL_INFO_SIZE)
1620	return vbsfSetEndOfFile(pClient, root, Handle, flags, pcbBuffer, pBuffer);
1621
1622	// if (flags & SHFL_INFO_VOLUME)
1623	// return vbsfVolumeInfo(pClient, root, Handle, flags, pcbBuffer, pBuffer);
1624	AssertFailed();
1625	return VERR_INVALID_PARAMETER;
1626	}
1627
1628	int vbsfLock(SHFLCLIENTDATA *pClient, SHFLROOT root, SHFLHANDLE Handle, uint64_t offset, uint64_t length, uint32_t flags)
1629	{
1630	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1631	uint32_t fRTLock = 0;
1632	int rc;
1633
1634	Assert((flags & SHFL_LOCK_MODE_MASK) != SHFL_LOCK_CANCEL);
1635
1636	if (pHandle == 0)
1637	{
1638	AssertFailed();
1639	return VERR_INVALID_HANDLE;
1640	}
1641	if ( ((flags & SHFL_LOCK_MODE_MASK) == SHFL_LOCK_CANCEL)
1642	\|\| (flags & SHFL_LOCK_ENTIRE)
1643	)
1644	{
1645	AssertFailed();
1646	return VERR_INVALID_PARAMETER;
1647	}
1648
1649	/* Lock type */
1650	switch(flags & SHFL_LOCK_MODE_MASK)
1651	{
1652	case SHFL_LOCK_SHARED:
1653	fRTLock = RTFILE_LOCK_READ;
1654	break;
1655
1656	case SHFL_LOCK_EXCLUSIVE:
1657	fRTLock = RTFILE_LOCK_READ \| RTFILE_LOCK_WRITE;
1658	break;
1659
1660	default:
1661	AssertFailed();
1662	return VERR_INVALID_PARAMETER;
1663	}
1664
1665	/* Lock wait type */
1666	if (flags & SHFL_LOCK_WAIT)
1667	fRTLock \|= RTFILE_LOCK_WAIT;
1668	else
1669	fRTLock \|= RTFILE_LOCK_IMMEDIATELY;
1670
1671	#ifdef RT_OS_WINDOWS
1672	rc = RTFileLock(pHandle->file.Handle, fRTLock, offset, length);
1673	if (rc != VINF_SUCCESS)
1674	Log(("RTFileLock %RTfile %RX64 %RX64 failed with %Rrc\n", pHandle->file.Handle, offset, length, rc));
1675	#else
1676	Log(("vbsfLock: Pretend success handle=%x\n", Handle));
1677	rc = VINF_SUCCESS;
1678	#endif
1679	return rc;
1680	}
1681
1682	int vbsfUnlock(SHFLCLIENTDATA *pClient, SHFLROOT root, SHFLHANDLE Handle, uint64_t offset, uint64_t length, uint32_t flags)
1683	{
1684	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1685	int rc;
1686
1687	Assert((flags & SHFL_LOCK_MODE_MASK) == SHFL_LOCK_CANCEL);
1688
1689	if (pHandle == 0)
1690	{
1691	return VERR_INVALID_HANDLE;
1692	}
1693	if ( ((flags & SHFL_LOCK_MODE_MASK) != SHFL_LOCK_CANCEL)
1694	\|\| (flags & SHFL_LOCK_ENTIRE)
1695	)
1696	{
1697	return VERR_INVALID_PARAMETER;
1698	}
1699
1700	#ifdef RT_OS_WINDOWS
1701	rc = RTFileUnlock(pHandle->file.Handle, offset, length);
1702	if (rc != VINF_SUCCESS)
1703	Log(("RTFileUnlock %RTfile %RX64 %RTX64 failed with %Rrc\n", pHandle->file.Handle, offset, length, rc));
1704	#else
1705	Log(("vbsfUnlock: Pretend success handle=%x\n", Handle));
1706	rc = VINF_SUCCESS;
1707	#endif
1708
1709	return rc;
1710	}
1711
1712
1713	int vbsfRemove(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pPath, uint32_t cbPath, uint32_t flags)
1714	{
1715	int rc = VINF_SUCCESS;
1716
1717	/* Validate input */
1718	if ( flags & ~(SHFL_REMOVE_FILE\|SHFL_REMOVE_DIR)
1719	\|\| cbPath == 0
1720	\|\| pPath == 0)
1721	{
1722	AssertFailed();
1723	return VERR_INVALID_PARAMETER;
1724	}
1725
1726	/* Build a host full path for the given path
1727	* and convert ucs2 to utf8 if necessary.
1728	*/
1729	char *pszFullPath = NULL;
1730
1731	rc = vbsfBuildFullPath (pClient, root, pPath, cbPath, &pszFullPath, NULL);
1732	if (VBOX_SUCCESS (rc))
1733	{
1734	/* is the guest allowed to write to this share? */
1735	bool fWritable;
1736	rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
1737	if (RT_FAILURE(rc) \|\| !fWritable)
1738	rc = VERR_WRITE_PROTECT;
1739
1740	if (VBOX_SUCCESS (rc))
1741	{
1742	if (flags & SHFL_REMOVE_FILE)
1743	rc = RTFileDelete(pszFullPath);
1744	else
1745	rc = RTDirRemove(pszFullPath);
1746	}
1747
1748	#ifndef DEBUG_dmik
1749	// VERR_ACCESS_DENIED for example?
1750	// Assert(rc == VINF_SUCCESS \|\| rc == VERR_DIR_NOT_EMPTY);
1751	#endif
1752	/* free the path string */
1753	vbsfFreeFullPath(pszFullPath);
1754	}
1755	return rc;
1756	}
1757
1758
1759	int vbsfRename(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pSrc, SHFLSTRING *pDest, uint32_t flags)
1760	{
1761	int rc = VINF_SUCCESS;
1762
1763	/* Validate input */
1764	if ( flags & ~(SHFL_REMOVE_FILE\|SHFL_REMOVE_DIR\|SHFL_RENAME_REPLACE_IF_EXISTS)
1765	\|\| pSrc == 0
1766	\|\| pDest == 0)
1767	{
1768	AssertFailed();
1769	return VERR_INVALID_PARAMETER;
1770	}
1771
1772	/* Build a host full path for the given path
1773	* and convert ucs2 to utf8 if necessary.
1774	*/
1775	char *pszFullPathSrc = NULL;
1776	char *pszFullPathDest = NULL;
1777
1778	rc = vbsfBuildFullPath (pClient, root, pSrc, pSrc->u16Size, &pszFullPathSrc, NULL);
1779	if (rc != VINF_SUCCESS)
1780	return rc;
1781
1782	rc = vbsfBuildFullPath (pClient, root, pDest, pDest->u16Size, &pszFullPathDest, NULL);
1783	if (VBOX_SUCCESS (rc))
1784	{
1785	Log(("Rename %s to %s\n", pszFullPathSrc, pszFullPathDest));
1786
1787	/* is the guest allowed to write to this share? */
1788	bool fWritable;
1789	rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
1790	if (RT_FAILURE(rc) \|\| !fWritable)
1791	rc = VERR_WRITE_PROTECT;
1792
1793	if (VBOX_SUCCESS (rc))
1794	{
1795	if (flags & SHFL_RENAME_FILE)
1796	{
1797	rc = RTFileMove(pszFullPathSrc, pszFullPathDest, (flags & SHFL_RENAME_REPLACE_IF_EXISTS) ? RTFILEMOVE_FLAGS_REPLACE : 0);
1798	}
1799	else
1800	{
1801	/* NT ignores the REPLACE flag and simply return and already exists error. */
1802	rc = RTDirRename(pszFullPathSrc, pszFullPathDest, (flags & SHFL_RENAME_REPLACE_IF_EXISTS) ? RTPATHRENAME_FLAGS_REPLACE : 0);
1803	}
1804	}
1805
1806	#ifndef DEBUG_dmik
1807	AssertRC(rc);
1808	#endif
1809	/* free the path string */
1810	vbsfFreeFullPath(pszFullPathDest);
1811	}
1812	/* free the path string */
1813	vbsfFreeFullPath(pszFullPathSrc);
1814	return rc;
1815	}
1816
1817	/*
1818	* Clean up our mess by freeing all handles that are still valid.
1819	*
1820	*/
1821	int vbsfDisconnect(SHFLCLIENTDATA *pClient)
1822	{
1823	for (int i=0;i<SHFLHANDLE_MAX;i++)
1824	{
1825	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(i, SHFL_HF_TYPE_MASK);
1826
1827	if (pHandle)
1828	{
1829	Log(("Open handle %08x\n", i));
1830	vbsfClose(pClient, SHFL_HANDLE_ROOT /* incorrect, but it's not important */, (SHFLHANDLE)i);
1831	}
1832	}
1833	return VINF_SUCCESS;
1834	}

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source: vbox/trunk/src/VBox/HostServices/SharedFolders/vbsf.cpp@ 9043

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