vbsf.cpp@ 34078

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1	/** @file
2	*
3	* Shared Folders:
4	* VBox Shared Folders.
5	*/
6
7	/*
8	* Copyright (C) 2006-2007 Oracle Corporation
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
19	#include "mappings.h"
20	#include "vbsf.h"
21	#include "shflhandle.h"
22
23	#include <iprt/alloc.h>
24	#include <iprt/assert.h>
25	#include <iprt/fs.h>
26	#include <iprt/dir.h>
27	#include <iprt/file.h>
28	#include <iprt/path.h>
29	#include <iprt/string.h>
30	#include <iprt/symlink.h>
31	#include <iprt/uni.h>
32	#include <iprt/stream.h>
33	#ifdef RT_OS_DARWIN
34	#include <Carbon/Carbon.h>
35	#endif
36
37	#undef LogFlow
38	#define LogFlow Log
39
40	#define SHFL_RT_LINK(pClient) ((pClient)->fu32Flags & SHFL_CF_SYMLINKS ? RTPATH_F_ON_LINK : RTPATH_F_FOLLOW_LINK)
41
42	/**
43	* @todo find a better solution for supporting the execute bit for non-windows
44	* guests on windows host. Search for "0111" to find all the relevant places.
45	*/
46
47	void vbsfStripLastComponent (char *pszFullPath, uint32_t cbFullPathRoot)
48	{
49	RTUNICP cp;
50
51	/* Do not strip root. */
52	char *s = pszFullPath + cbFullPathRoot;
53	char *delimSecondLast = NULL;
54	char *delimLast = NULL;
55
56	LogFlowFunc(("%s -> %s\n", pszFullPath, s));
57
58	for (;;)
59	{
60	cp = RTStrGetCp(s);
61
62	if (cp == RTUNICP_INVALID \|\| cp == 0)
63	{
64	break;
65	}
66
67	if (cp == RTPATH_DELIMITER)
68	{
69	if (delimLast != NULL)
70	{
71	delimSecondLast = delimLast;
72	}
73
74	delimLast = s;
75	}
76
77	s = RTStrNextCp (s);
78	}
79
80	if (cp == 0)
81	{
82	if (delimLast + 1 == s)
83	{
84	if (delimSecondLast)
85	{
86	*delimSecondLast = 0;
87	}
88	else if (delimLast)
89	{
90	*delimLast = 0;
91	}
92	}
93	else
94	{
95	if (delimLast)
96	{
97	*delimLast = 0;
98	}
99	}
100	}
101
102	LogFlowFunc(("%s, %s, %s\n", pszFullPath, delimLast, delimSecondLast));
103	}
104
105	static int vbsfCorrectCasing(SHFLCLIENTDATA pClient, char pszFullPath, char *pszStartComponent)
106	{
107	PRTDIRENTRYEX pDirEntry = NULL;
108	uint32_t cbDirEntry, cbComponent;
109	int rc = VERR_FILE_NOT_FOUND;
110	PRTDIR hSearch = 0;
111	char szWildCard[4];
112
113	Log2(("vbsfCorrectCasing: %s %s\n", pszFullPath, pszStartComponent));
114
115	cbComponent = (uint32_t) strlen(pszStartComponent);
116
117	cbDirEntry = 4096;
118	pDirEntry = (PRTDIRENTRYEX)RTMemAlloc(cbDirEntry);
119	if (pDirEntry == 0)
120	{
121	AssertFailed();
122	return VERR_NO_MEMORY;
123	}
124
125	/** @todo this is quite inefficient, especially for directories with many files */
126	Assert(pszFullPath < pszStartComponent-1);
127	Assert(*(pszStartComponent-1) == RTPATH_DELIMITER);
128	*(pszStartComponent-1) = 0;
129	strcpy(pDirEntry->szName, pszFullPath);
130	szWildCard[0] = RTPATH_DELIMITER;
131	szWildCard[1] = '*';
132	szWildCard[2] = 0;
133	strcat(pDirEntry->szName, szWildCard);
134
135	rc = RTDirOpenFiltered (&hSearch, pDirEntry->szName, RTDIRFILTER_WINNT);
136	*(pszStartComponent-1) = RTPATH_DELIMITER;
137	if (RT_FAILURE(rc))
138	goto end;
139
140	for (;;)
141	{
142	size_t cbDirEntrySize = cbDirEntry;
143
144	rc = RTDirReadEx(hSearch, pDirEntry, &cbDirEntrySize, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
145	if (rc == VERR_NO_MORE_FILES)
146	break;
147
148	if ( rc != VINF_SUCCESS
149	&& rc != VWRN_NO_DIRENT_INFO)
150	{
151	AssertFailed();
152	if ( rc == VERR_NO_TRANSLATION
153	\|\| rc == VERR_INVALID_UTF8_ENCODING)
154	continue;
155	break;
156	}
157
158	Log2(("vbsfCorrectCasing: found %s\n", &pDirEntry->szName[0]));
159	if ( pDirEntry->cbName == cbComponent
160	&& !RTStrICmp(pszStartComponent, &pDirEntry->szName[0]))
161	{
162	Log(("Found original name %s (%s)\n", &pDirEntry->szName[0], pszStartComponent));
163	strcpy(pszStartComponent, &pDirEntry->szName[0]);
164	rc = VINF_SUCCESS;
165	break;
166	}
167	}
168
169	end:
170	if (RT_FAILURE(rc))
171	Log(("vbsfCorrectCasing %s failed with %d\n", pszStartComponent, rc));
172
173	if (pDirEntry)
174	RTMemFree(pDirEntry);
175
176	if (hSearch)
177	RTDirClose(hSearch);
178	return rc;
179	}
180
181	static int vbsfPathCheck(const char *pUtf8Path, size_t cbPath)
182	{
183	int rc = VINF_SUCCESS;
184
185	/* The pUtf8Path is what the guest sent. Verify that the path is within the root.
186	* Count '..' and other path components and check that we do not go over the root.
187	*/
188
189	size_t i = 0;
190	int cComponents = 0; /* How many normal path components. */
191	int cParentDirs = 0; /* How many '..' components. */
192
193	for (;;)
194	{
195	/* Skip leading path delimiters. */
196	while ( i < cbPath
197	&& (pUtf8Path[i] == '\\' \|\| pUtf8Path[i] == '/'))
198	i++;
199
200	if (i >= cbPath)
201	break;
202
203	/* Check if that is a dot component. */
204	int cDots = 0;
205	while (i < cbPath && pUtf8Path[i] == '.')
206	{
207	cDots++;
208	i++;
209	}
210
211	if ( cDots >= 2 /* Consider all multidots sequences as a 'parent dir'. */
212	&& (i >= cbPath \|\| (pUtf8Path[i] == '\\' \|\| pUtf8Path[i] == '/')))
213	{
214	cParentDirs++;
215	}
216	else if ( cDots == 1
217	&& (i >= cbPath \|\| (pUtf8Path[i] == '\\' \|\| pUtf8Path[i] == '/')))
218	{
219	/* Single dot, nothing changes. */
220	}
221	else
222	{
223	/* Skip this component. */
224	while ( i < cbPath
225	&& (pUtf8Path[i] != '\\' && pUtf8Path[i] != '/'))
226	i++;
227
228	cComponents++;
229	}
230
231	Assert(i >= cbPath \|\| (pUtf8Path[i] == '\\' \|\| pUtf8Path[i] == '/'));
232
233	/* Verify counters for every component. */
234	if (cParentDirs > cComponents)
235	{
236	rc = VERR_INVALID_NAME;
237	break;
238	}
239	}
240
241	return rc;
242	}
243
244	static int vbsfBuildFullPath (SHFLCLIENTDATA *pClient, SHFLROOT root, PSHFLSTRING pPath,
245	uint32_t cbPath, char *ppszFullPath, uint32_t pcbFullPathRoot,
246	bool fWildCard = false, bool fPreserveLastComponent = false)
247	{
248	int rc = VINF_SUCCESS;
249
250	char *pszFullPath = NULL;
251
252	/* Query UCS2 root prefix for the path, cbRoot is the length in bytes including trailing (RTUTF16)0. */
253	uint32_t cbRoot = 0;
254	PCRTUTF16 pwszRoot = vbsfMappingsQueryHostRoot (root, &cbRoot);
255
256	if (!pwszRoot \|\| cbRoot == 0)
257	{
258	Log(("vbsfBuildFullPath: invalid root!\n"));
259	return VERR_INVALID_PARAMETER;
260	}
261
262	if (BIT_FLAG(pClient->fu32Flags, SHFL_CF_UTF8))
263	{
264	char *utf8Root;
265
266	/* Verify that the path is under the root directory. */
267	rc = vbsfPathCheck((const char *)&pPath->String.utf8[0], pPath->u16Length);
268
269	if (RT_SUCCESS (rc))
270	{
271	rc = RTUtf16ToUtf8 (pwszRoot, &utf8Root);
272	}
273
274	if (RT_SUCCESS (rc))
275	{
276	size_t cbUtf8Root, cbUtf8FullPath;
277	char *utf8FullPath;
278
279	cbUtf8Root = strlen (utf8Root);
280	cbUtf8FullPath = cbUtf8Root + 1 + pPath->u16Length + 1;
281	utf8FullPath = (char *) RTMemAllocZ (cbUtf8FullPath);
282
283	if (!utf8FullPath)
284	{
285	rc = VERR_NO_MEMORY;
286	*ppszFullPath = NULL;
287	Log(("RTMemAllocZ %x failed!!\n", cbUtf8FullPath));
288	}
289	else
290	{
291	memcpy (utf8FullPath, utf8Root, cbUtf8Root);
292	memcpy (utf8FullPath + cbUtf8Root + 1,
293	&pPath->String.utf8[0],
294	pPath->u16Length);
295
296	utf8FullPath[cbUtf8Root] = '/';
297	utf8FullPath[cbUtf8FullPath - 1] = 0;
298	pszFullPath = utf8FullPath;
299
300	if (pcbFullPathRoot)
301	pcbFullPathRoot = (uint32_t)cbUtf8Root; / Must index the path delimiter. */
302	}
303
304	RTStrFree (utf8Root);
305	}
306	else
307	{
308	Log (("vbsfBuildFullPath: RTUtf16ToUtf8 failed with %Rrc\n", rc));
309	}
310	}
311	else
312	{
313	#ifdef RT_OS_DARWIN
314	/** @todo This belongs in rtPathToNative or in the windows shared folder file system driver...
315	* The question is simply whether the NFD normalization is actually applied on a (virtual) file
316	* system level in darwin, or just by the user mode application libs. */
317	SHFLSTRING *pPathParameter = pPath;
318	size_t cbPathLength;
319	CFMutableStringRef inStr = ::CFStringCreateMutable(NULL, 0);
320	uint16_t ucs2Length;
321	CFRange rangeCharacters;
322
323	// Is 8 times length enough for decomposed in worst case...?
324	cbPathLength = sizeof(SHFLSTRING) + pPathParameter->u16Length * 8 + 2;
325	pPath = (SHFLSTRING *)RTMemAllocZ (cbPathLength);
326	if (!pPath)
327	{
328	rc = VERR_NO_MEMORY;
329	Log(("RTMemAllocZ %x failed!!\n", cbPathLength));
330	return rc;
331	}
332
333	::CFStringAppendCharacters(inStr, (UniChar*)pPathParameter->String.ucs2, pPathParameter->u16Length / sizeof(pPathParameter->String.ucs2[0]));
334	::CFStringNormalize(inStr, kCFStringNormalizationFormD);
335	ucs2Length = ::CFStringGetLength(inStr);
336
337	rangeCharacters.location = 0;
338	rangeCharacters.length = ucs2Length;
339	::CFStringGetCharacters(inStr, rangeCharacters, pPath->String.ucs2);
340	pPath->String.ucs2[ucs2Length] = 0x0000; // NULL terminated
341	pPath->u16Length = ucs2Length * sizeof(pPath->String.ucs2[0]);
342	pPath->u16Size = pPath->u16Length + sizeof(pPath->String.ucs2[0]);
343
344	CFRelease(inStr);
345	#endif
346	/* Client sends us UCS2, so convert it to UTF8. */
347	Log(("Root %ls path %.*ls\n", pwszRoot, pPath->u16Length/sizeof(pPath->String.ucs2[0]), pPath->String.ucs2));
348
349	/* Allocate buffer that will be able to contain
350	* the root prefix and the pPath converted to UTF8.
351	* Expect a 2 bytes UCS2 to be converted to 8 bytes UTF8
352	* in worst case.
353	*/
354	uint32_t cbFullPath = (cbRoot/sizeof (RTUTF16) + ShflStringLength (pPath)) * 4;
355
356	pszFullPath = (char *)RTMemAllocZ (cbFullPath);
357
358	if (!pszFullPath)
359	{
360	rc = VERR_NO_MEMORY;
361	}
362	else
363	{
364	uint32_t cb = cbFullPath;
365
366	rc = RTUtf16ToUtf8Ex (pwszRoot, RTSTR_MAX, &pszFullPath, cb, NULL);
367	if (RT_FAILURE(rc))
368	{
369	AssertFailed();
370	#ifdef RT_OS_DARWIN
371	RTMemFree(pPath);
372	pPath = pPathParameter;
373	#endif
374	return rc;
375	}
376
377	char *dst = pszFullPath;
378
379	cbRoot = (uint32_t)strlen(dst);
380	if (dst[cbRoot - 1] != RTPATH_DELIMITER)
381	{
382	dst[cbRoot] = RTPATH_DELIMITER;
383	cbRoot++;
384	}
385
386	if (pcbFullPathRoot)
387	pcbFullPathRoot = cbRoot - 1; / Must index the path delimiter. */
388
389	dst += cbRoot;
390	cb -= cbRoot;
391
392	if (pPath->u16Length)
393	{
394	/* Convert and copy components. */
395	PRTUTF16 src = &pPath->String.ucs2[0];
396
397	/* Correct path delimiters */
398	if (pClient->PathDelimiter != RTPATH_DELIMITER)
399	{
400	LogFlow(("Correct path delimiter in %ls\n", src));
401	while (*src)
402	{
403	if (*src == pClient->PathDelimiter)
404	*src = RTPATH_DELIMITER;
405	src++;
406	}
407	src = &pPath->String.ucs2[0];
408	LogFlow(("Corrected string %ls\n", src));
409	}
410	if (*src == RTPATH_DELIMITER)
411	src++; /* we already appended a delimiter to the first part */
412
413	rc = RTUtf16ToUtf8Ex (src, RTSTR_MAX, &dst, cb, NULL);
414	if (RT_FAILURE(rc))
415	{
416	AssertFailed();
417	#ifdef RT_OS_DARWIN
418	RTMemFree(pPath);
419	pPath = pPathParameter;
420	#endif
421	return rc;
422	}
423
424	uint32_t l = (uint32_t)strlen (dst);
425
426	/* Verify that the path is under the root directory. */
427	rc = vbsfPathCheck(dst, l);
428
429	if (RT_FAILURE(rc))
430	{
431	#ifdef RT_OS_DARWIN
432	RTMemFree(pPath);
433	pPath = pPathParameter;
434	#endif
435	return rc;
436	}
437
438	cb -= l;
439	dst += l;
440
441	Assert(cb > 0);
442	}
443
444	/* Nul terminate the string */
445	*dst = 0;
446	}
447	#ifdef RT_OS_DARWIN
448	RTMemFree(pPath);
449	pPath = pPathParameter;
450	#endif
451	}
452
453	if (RT_SUCCESS (rc))
454	{
455	/* When the host file system is case sensitive and the guest expects a case insensitive fs, then problems can occur */
456	if ( vbsfIsHostMappingCaseSensitive (root)
457	&& !vbsfIsGuestMappingCaseSensitive(root))
458	{
459	RTFSOBJINFO info;
460	char *pszLastComponent = NULL;
461
462	if (fWildCard \|\| fPreserveLastComponent)
463	{
464	/* strip off the last path component, that has to be preserved: contains the wildcard(s) or a 'rename' target. */
465	uint32_t len = (uint32_t)strlen(pszFullPath);
466	char *src = pszFullPath + len - 1;
467
468	while(src > pszFullPath)
469	{
470	if (*src == RTPATH_DELIMITER)
471	break;
472	src--;
473	}
474	if (*src == RTPATH_DELIMITER)
475	{
476	bool fHaveWildcards = false;
477	char *temp = src;
478
479	while(*temp)
480	{
481	char uc = *temp;
482	if (uc == '*' \|\| uc == '?' \|\| uc == '>' \|\| uc == '<' \|\| uc == '"')
483	{
484	fHaveWildcards = true;
485	break;
486	}
487	temp++;
488	}
489
490	if (fHaveWildcards \|\| fPreserveLastComponent)
491	{
492	pszLastComponent = src;
493	*pszLastComponent = 0;
494	}
495	}
496	}
497
498	/** @todo don't check when creating files or directories; waste of time */
499	rc = RTPathQueryInfoEx(pszFullPath, &info, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
500	if (rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND)
501	{
502	uint32_t len = (uint32_t)strlen(pszFullPath);
503	char *src = pszFullPath + len - 1;
504
505	Log(("Handle case insensitive guest fs on top of host case sensitive fs for %s\n", pszFullPath));
506
507	/* Find partial path that's valid */
508	while(src > pszFullPath)
509	{
510	if (*src == RTPATH_DELIMITER)
511	{
512	*src = 0;
513	rc = RTPathQueryInfoEx(pszFullPath, &info, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
514	*src = RTPATH_DELIMITER;
515	if (rc == VINF_SUCCESS)
516	{
517	#ifdef DEBUG
518	*src = 0;
519	Log(("Found valid partial path %s\n", pszFullPath));
520	*src = RTPATH_DELIMITER;
521	#endif
522	break;
523	}
524	}
525
526	src--;
527	}
528	Assert(*src == RTPATH_DELIMITER && RT_SUCCESS(rc));
529	if ( *src == RTPATH_DELIMITER
530	&& RT_SUCCESS(rc))
531	{
532	src++;
533	for (;;)
534	{
535	char *end = src;
536	bool fEndOfString = true;
537
538	while(*end)
539	{
540	if (*end == RTPATH_DELIMITER)
541	break;
542	end++;
543	}
544
545	if (*end == RTPATH_DELIMITER)
546	{
547	fEndOfString = false;
548	*end = 0;
549	rc = RTPathQueryInfoEx(src, &info, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
550	Assert(rc == VINF_SUCCESS \|\| rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND);
551	}
552	else
553	if (end == src)
554	rc = VINF_SUCCESS; /* trailing delimiter */
555	else
556	rc = VERR_FILE_NOT_FOUND;
557
558	if (rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND)
559	{
560	/* path component is invalid; try to correct the casing */
561	rc = vbsfCorrectCasing(pClient, pszFullPath, src);
562	if (RT_FAILURE(rc))
563	{
564	if (!fEndOfString)
565	end = RTPATH_DELIMITER; / restore the original full path */
566	break;
567	}
568	}
569
570	if (fEndOfString)
571	break;
572
573	*end = RTPATH_DELIMITER;
574	src = end + 1;
575	}
576	if (RT_FAILURE(rc))
577	Log(("Unable to find suitable component rc=%d\n", rc));
578	}
579	else
580	rc = VERR_FILE_NOT_FOUND;
581
582	}
583	if (pszLastComponent)
584	*pszLastComponent = RTPATH_DELIMITER;
585
586	/* might be a new file so don't fail here! */
587	rc = VINF_SUCCESS;
588	}
589	*ppszFullPath = pszFullPath;
590
591	LogFlow(("vbsfBuildFullPath: %s rc=%Rrc\n", pszFullPath, rc));
592	}
593
594	return rc;
595	}
596
597	static void vbsfFreeFullPath (char *pszFullPath)
598	{
599	RTMemFree (pszFullPath);
600	}
601
602	/**
603	* Convert shared folder create flags (see include/iprt/shflsvc.h) into iprt create flags.
604	*
605	* @returns iprt status code
606	* @param fShflFlags shared folder create flags
607	* @param fMode file attributes
608	* @retval pfOpen iprt create flags
609	*/
610	static int vbsfConvertFileOpenFlags(unsigned fShflFlags, RTFMODE fMode, SHFLHANDLE handleInitial, uint32_t *pfOpen)
611	{
612	uint32_t fOpen = 0;
613	int rc = VINF_SUCCESS;
614
615	if ( (fMode & RTFS_DOS_MASK) != 0
616	&& (fMode & RTFS_UNIX_MASK) == 0)
617	{
618	/* A DOS/Windows guest, make RTFS_UNIX_* from RTFS_DOS_*.
619	* @todo this is based on rtFsModeNormalize/rtFsModeFromDos.
620	* May be better to use RTFsModeNormalize here.
621	*/
622	fMode \|= RTFS_UNIX_IRUSR \| RTFS_UNIX_IRGRP \| RTFS_UNIX_IROTH;
623	/* x for directories. */
624	if (fMode & RTFS_DOS_DIRECTORY)
625	fMode \|= RTFS_TYPE_DIRECTORY \| RTFS_UNIX_IXUSR \| RTFS_UNIX_IXGRP \| RTFS_UNIX_IXOTH;
626	/* writable? */
627	if (!(fMode & RTFS_DOS_READONLY))
628	fMode \|= RTFS_UNIX_IWUSR \| RTFS_UNIX_IWGRP \| RTFS_UNIX_IWOTH;
629
630	/* Set the requested mode using only allowed bits. */
631	fOpen \|= ((fMode & RTFS_UNIX_MASK) << RTFILE_O_CREATE_MODE_SHIFT) & RTFILE_O_CREATE_MODE_MASK;
632	}
633	else
634	{
635	/* Old linux and solaris additions did not initialize the Info.Attr.fMode field
636	* and it contained random bits from stack. Detect this using the handle field value
637	* passed from the guest: old additions set it (incorrectly) to 0, new additions
638	* set it to SHFL_HANDLE_NIL(~0).
639	*/
640	if (handleInitial == 0)
641	{
642	/* Old additions. Do nothing, use default mode. */
643	}
644	else
645	{
646	/* New additions or Windows additions. Set the requested mode using only allowed bits.
647	* Note: Windows guest set RTFS_UNIX_MASK bits to 0, which means a default mode
648	* will be set in fOpen.
649	*/
650	fOpen \|= ((fMode & RTFS_UNIX_MASK) << RTFILE_O_CREATE_MODE_SHIFT) & RTFILE_O_CREATE_MODE_MASK;
651	}
652	}
653
654	switch (BIT_FLAG(fShflFlags, SHFL_CF_ACCESS_MASK_RW))
655	{
656	default:
657	case SHFL_CF_ACCESS_NONE:
658	{
659	/** @todo treat this as read access, but theoretically this could be a no access request. */
660	fOpen \|= RTFILE_O_READ;
661	Log(("FLAG: SHFL_CF_ACCESS_NONE\n"));
662	break;
663	}
664
665	case SHFL_CF_ACCESS_READ:
666	{
667	fOpen \|= RTFILE_O_READ;
668	Log(("FLAG: SHFL_CF_ACCESS_READ\n"));
669	break;
670	}
671
672	case SHFL_CF_ACCESS_WRITE:
673	{
674	fOpen \|= RTFILE_O_WRITE;
675	Log(("FLAG: SHFL_CF_ACCESS_WRITE\n"));
676	break;
677	}
678
679	case SHFL_CF_ACCESS_READWRITE:
680	{
681	fOpen \|= RTFILE_O_READWRITE;
682	Log(("FLAG: SHFL_CF_ACCESS_READWRITE\n"));
683	break;
684	}
685	}
686
687	if (fShflFlags & SHFL_CF_ACCESS_APPEND)
688	{
689	fOpen \|= RTFILE_O_APPEND;
690	}
691
692	switch (BIT_FLAG(fShflFlags, SHFL_CF_ACCESS_MASK_ATTR))
693	{
694	default:
695	case SHFL_CF_ACCESS_ATTR_NONE:
696	{
697	fOpen \|= RTFILE_O_ACCESS_ATTR_DEFAULT;
698	Log(("FLAG: SHFL_CF_ACCESS_ATTR_NONE\n"));
699	break;
700	}
701
702	case SHFL_CF_ACCESS_ATTR_READ:
703	{
704	fOpen \|= RTFILE_O_ACCESS_ATTR_READ;
705	Log(("FLAG: SHFL_CF_ACCESS_ATTR_READ\n"));
706	break;
707	}
708
709	case SHFL_CF_ACCESS_ATTR_WRITE:
710	{
711	fOpen \|= RTFILE_O_ACCESS_ATTR_WRITE;
712	Log(("FLAG: SHFL_CF_ACCESS_ATTR_WRITE\n"));
713	break;
714	}
715
716	case SHFL_CF_ACCESS_ATTR_READWRITE:
717	{
718	fOpen \|= RTFILE_O_ACCESS_ATTR_READWRITE;
719	Log(("FLAG: SHFL_CF_ACCESS_ATTR_READWRITE\n"));
720	break;
721	}
722	}
723
724	/* Sharing mask */
725	switch (BIT_FLAG(fShflFlags, SHFL_CF_ACCESS_MASK_DENY))
726	{
727	default:
728	case SHFL_CF_ACCESS_DENYNONE:
729	fOpen \|= RTFILE_O_DENY_NONE;
730	Log(("FLAG: SHFL_CF_ACCESS_DENYNONE\n"));
731	break;
732
733	case SHFL_CF_ACCESS_DENYREAD:
734	fOpen \|= RTFILE_O_DENY_READ;
735	Log(("FLAG: SHFL_CF_ACCESS_DENYREAD\n"));
736	break;
737
738	case SHFL_CF_ACCESS_DENYWRITE:
739	fOpen \|= RTFILE_O_DENY_WRITE;
740	Log(("FLAG: SHFL_CF_ACCESS_DENYWRITE\n"));
741	break;
742
743	case SHFL_CF_ACCESS_DENYALL:
744	fOpen \|= RTFILE_O_DENY_ALL;
745	Log(("FLAG: SHFL_CF_ACCESS_DENYALL\n"));
746	break;
747	}
748
749	/* Open/Create action mask */
750	switch (BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_EXISTS))
751	{
752	case SHFL_CF_ACT_OPEN_IF_EXISTS:
753	if (SHFL_CF_ACT_CREATE_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
754	{
755	fOpen \|= RTFILE_O_OPEN_CREATE;
756	Log(("FLAGS: SHFL_CF_ACT_OPEN_IF_EXISTS and SHFL_CF_ACT_CREATE_IF_NEW\n"));
757	}
758	else if (SHFL_CF_ACT_FAIL_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
759	{
760	fOpen \|= RTFILE_O_OPEN;
761	Log(("FLAGS: SHFL_CF_ACT_OPEN_IF_EXISTS and SHFL_CF_ACT_FAIL_IF_NEW\n"));
762	}
763	else
764	{
765	Log(("FLAGS: invalid open/create action combination\n"));
766	rc = VERR_INVALID_PARAMETER;
767	}
768	break;
769	case SHFL_CF_ACT_FAIL_IF_EXISTS:
770	if (SHFL_CF_ACT_CREATE_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
771	{
772	fOpen \|= RTFILE_O_CREATE;
773	Log(("FLAGS: SHFL_CF_ACT_FAIL_IF_EXISTS and SHFL_CF_ACT_CREATE_IF_NEW\n"));
774	}
775	else
776	{
777	Log(("FLAGS: invalid open/create action combination\n"));
778	rc = VERR_INVALID_PARAMETER;
779	}
780	break;
781	case SHFL_CF_ACT_REPLACE_IF_EXISTS:
782	if (SHFL_CF_ACT_CREATE_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
783	{
784	fOpen \|= RTFILE_O_CREATE_REPLACE;
785	Log(("FLAGS: SHFL_CF_ACT_REPLACE_IF_EXISTS and SHFL_CF_ACT_CREATE_IF_NEW\n"));
786	}
787	else if (SHFL_CF_ACT_FAIL_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
788	{
789	fOpen \|= RTFILE_O_OPEN \| RTFILE_O_TRUNCATE;
790	Log(("FLAGS: SHFL_CF_ACT_REPLACE_IF_EXISTS and SHFL_CF_ACT_FAIL_IF_NEW\n"));
791	}
792	else
793	{
794	Log(("FLAGS: invalid open/create action combination\n"));
795	rc = VERR_INVALID_PARAMETER;
796	}
797	break;
798	case SHFL_CF_ACT_OVERWRITE_IF_EXISTS:
799	if (SHFL_CF_ACT_CREATE_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
800	{
801	fOpen \|= RTFILE_O_CREATE_REPLACE;
802	Log(("FLAGS: SHFL_CF_ACT_OVERWRITE_IF_EXISTS and SHFL_CF_ACT_CREATE_IF_NEW\n"));
803	}
804	else if (SHFL_CF_ACT_FAIL_IF_NEW == BIT_FLAG(fShflFlags, SHFL_CF_ACT_MASK_IF_NEW))
805	{
806	fOpen \|= RTFILE_O_OPEN \| RTFILE_O_TRUNCATE;
807	Log(("FLAGS: SHFL_CF_ACT_OVERWRITE_IF_EXISTS and SHFL_CF_ACT_FAIL_IF_NEW\n"));
808	}
809	else
810	{
811	Log(("FLAGS: invalid open/create action combination\n"));
812	rc = VERR_INVALID_PARAMETER;
813	}
814	break;
815	default:
816	rc = VERR_INVALID_PARAMETER;
817	Log(("FLAG: SHFL_CF_ACT_MASK_IF_EXISTS - invalid parameter\n"));
818	}
819
820	if (RT_SUCCESS(rc))
821	{
822	*pfOpen = fOpen;
823	}
824	return rc;
825	}
826
827	/**
828	* Open a file or create and open a new one.
829	*
830	* @returns IPRT status code
831	* @param pClient Data structure describing the client accessing the shared folder
832	* @param pszPath Path to the file or folder on the host.
833	* @param pParms->CreateFlags Creation or open parameters, see include/VBox/shflsvc.h
834	* @param pParms->Info When a new file is created this specifies the initial parameters.
835	* When a file is created or overwritten, it also specifies the
836	* initial size.
837	* @retval pParms->Result Shared folder status code, see include/VBox/shflsvc.h
838	* @retval pParms->Handle On success the (shared folder) handle of the file opened or
839	* created
840	* @retval pParms->Info On success the parameters of the file opened or created
841	*/
842	static int vbsfOpenFile (SHFLCLIENTDATA pClient, const char pszPath, SHFLCREATEPARMS *pParms)
843	{
844	LogFlow(("vbsfOpenFile: pszPath = %s, pParms = %p\n", pszPath, pParms));
845	Log(("SHFL create flags %08x\n", pParms->CreateFlags));
846
847	SHFLHANDLE handle = SHFL_HANDLE_NIL;
848	SHFLFILEHANDLE *pHandle = 0;
849	/* Open or create a file. */
850	uint32_t fOpen = 0;
851	bool fNoError = false;
852	static int cErrors;
853
854	int rc = vbsfConvertFileOpenFlags(pParms->CreateFlags, pParms->Info.Attr.fMode, pParms->Handle, &fOpen);
855	if (RT_SUCCESS(rc))
856	{
857	handle = vbsfAllocFileHandle();
858	}
859	if (SHFL_HANDLE_NIL != handle)
860	{
861	rc = VERR_NO_MEMORY; /* If this fails - rewritten immediately on success. */
862	pHandle = (SHFLFILEHANDLE *)vbsfQueryHandle(handle, SHFL_HF_TYPE_FILE);
863	}
864	if (0 != pHandle)
865	{
866	rc = RTFileOpen(&pHandle->file.Handle, pszPath, fOpen);
867	}
868	if (RT_FAILURE (rc))
869	{
870	switch (rc)
871	{
872	case VERR_FILE_NOT_FOUND:
873	pParms->Result = SHFL_FILE_NOT_FOUND;
874
875	/* This actually isn't an error, so correct the rc before return later,
876	because the driver (VBoxSF.sys) expects rc = VINF_SUCCESS and checks the result code. */
877	fNoError = true;
878	break;
879	case VERR_PATH_NOT_FOUND:
880	pParms->Result = SHFL_PATH_NOT_FOUND;
881
882	/* This actually isn't an error, so correct the rc before return later,
883	because the driver (VBoxSF.sys) expects rc = VINF_SUCCESS and checks the result code. */
884	fNoError = true;
885	break;
886	case VERR_ALREADY_EXISTS:
887	RTFSOBJINFO info;
888
889	/** @todo Possible race left here. */
890	if (RT_SUCCESS(RTPathQueryInfoEx(pszPath, &info, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient))))
891	{
892	#ifdef RT_OS_WINDOWS
893	info.Attr.fMode \|= 0111;
894	#endif
895	vbfsCopyFsObjInfoFromIprt(&pParms->Info, &info);
896	}
897	pParms->Result = SHFL_FILE_EXISTS;
898
899	/* This actually isn't an error, so correct the rc before return later,
900	because the driver (VBoxSF.sys) expects rc = VINF_SUCCESS and checks the result code. */
901	fNoError = true;
902	break;
903	case VERR_TOO_MANY_OPEN_FILES:
904	if (cErrors < 32)
905	{
906	LogRel(("SharedFolders host service: Cannot open '%s' -- too many open files.\n", pszPath));
907	#if defined RT_OS_LINUX \|\| RT_OS_SOLARIS
908	if (cErrors < 1)
909	LogRel(("SharedFolders host service: Try to increase the limit for open files (ulimit -n)\n"));
910	#endif
911	cErrors++;
912	}
913	pParms->Result = SHFL_NO_RESULT;
914	break;
915	default:
916	pParms->Result = SHFL_NO_RESULT;
917	}
918	}
919
920	if (RT_SUCCESS(rc))
921	{
922	/** @note The shared folder status code is very approximate, as the runtime
923	* does not really provide this information. */
924	pParms->Result = SHFL_FILE_EXISTS; /* We lost the information as to whether it was
925	created when we eliminated the race. */
926	if ( ( SHFL_CF_ACT_REPLACE_IF_EXISTS
927	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS))
928	\|\| ( SHFL_CF_ACT_OVERWRITE_IF_EXISTS
929	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS)))
930	{
931	/* For now, we do not treat a failure here as fatal. */
932	/* @todo Also set the size for SHFL_CF_ACT_CREATE_IF_NEW if
933	SHFL_CF_ACT_FAIL_IF_EXISTS is set. */
934	RTFileSetSize(pHandle->file.Handle, pParms->Info.cbObject);
935	pParms->Result = SHFL_FILE_REPLACED;
936	}
937	if ( ( SHFL_CF_ACT_FAIL_IF_EXISTS
938	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS))
939	\|\| ( SHFL_CF_ACT_CREATE_IF_NEW
940	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_NEW)))
941	{
942	pParms->Result = SHFL_FILE_CREATED;
943	}
944	#if 0
945	/* @todo */
946	/* Set new attributes. */
947	if ( ( SHFL_CF_ACT_REPLACE_IF_EXISTS
948	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS))
949	\|\| ( SHFL_CF_ACT_CREATE_IF_NEW
950	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_NEW)))
951	{
952	RTFileSetTimes(pHandle->file.Handle,
953	&pParms->Info.AccessTime,
954	&pParms->Info.ModificationTime,
955	&pParms->Info.ChangeTime,
956	&pParms->Info.BirthTime
957	);
958
959	RTFileSetMode (pHandle->file.Handle, pParms->Info.Attr.fMode);
960	}
961	#endif
962	RTFSOBJINFO info;
963
964	/* Get file information */
965	rc = RTFileQueryInfo (pHandle->file.Handle, &info, RTFSOBJATTRADD_NOTHING);
966	if (RT_SUCCESS(rc))
967	{
968	#ifdef RT_OS_WINDOWS
969	info.Attr.fMode \|= 0111;
970	#endif
971	vbfsCopyFsObjInfoFromIprt(&pParms->Info, &info);
972	}
973	}
974	if (RT_FAILURE(rc))
975	{
976	if ( (0 != pHandle)
977	&& (NIL_RTFILE != pHandle->file.Handle)
978	&& (0 != pHandle->file.Handle))
979	{
980	RTFileClose(pHandle->file.Handle);
981	pHandle->file.Handle = NIL_RTFILE;
982	}
983	if (SHFL_HANDLE_NIL != handle)
984	{
985	vbsfFreeFileHandle (handle);
986	}
987	pParms->Handle = SHFL_HANDLE_NIL;
988	}
989	else
990	{
991	pParms->Handle = handle;
992	}
993
994	/* Report the driver that all is okay, we're done here */
995	if (fNoError)
996	rc = VINF_SUCCESS;
997
998	LogFlow(("vbsfOpenFile: rc = %Rrc\n", rc));
999	return rc;
1000	}
1001
1002	/**
1003	* Open a folder or create and open a new one.
1004	*
1005	* @returns IPRT status code
1006	* @param pszPath Path to the file or folder on the host.
1007	* @param pParms->CreateFlags Creation or open parameters, see include/VBox/shflsvc.h
1008	* @retval pParms->Result Shared folder status code, see include/VBox/shflsvc.h
1009	* @retval pParms->Handle On success the (shared folder) handle of the folder opened or
1010	* created
1011	* @retval pParms->Info On success the parameters of the folder opened or created
1012	*
1013	* @note folders are created with fMode = 0777
1014	*/
1015	static int vbsfOpenDir (const char pszPath, SHFLCREATEPARMS pParms)
1016	{
1017	LogFlow(("vbsfOpenDir: pszPath = %s, pParms = %p\n", pszPath, pParms));
1018	Log(("SHFL create flags %08x\n", pParms->CreateFlags));
1019
1020	int rc = VERR_NO_MEMORY;
1021	SHFLHANDLE handle = vbsfAllocDirHandle();
1022	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(handle, SHFL_HF_TYPE_DIR);
1023	if (0 != pHandle)
1024	{
1025	rc = VINF_SUCCESS;
1026	pParms->Result = SHFL_FILE_EXISTS; /* May be overwritten with SHFL_FILE_CREATED. */
1027	/** @todo Can anyone think of a sensible, race-less way to do this? Although
1028	I suspect that the race is inherent, due to the API available... */
1029	/* Try to create the folder first if "create if new" is specified. If this
1030	fails, and "open if exists" is specified, then we ignore the failure and try
1031	to open the folder anyway. */
1032	if ( SHFL_CF_ACT_CREATE_IF_NEW
1033	== BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_NEW))
1034	{
1035	/** @todo render supplied attributes.
1036	* bird: The guest should specify this. For windows guests RTFS_DOS_DIRECTORY should suffice. */
1037	RTFMODE fMode = 0777;
1038
1039	pParms->Result = SHFL_FILE_CREATED;
1040	rc = RTDirCreate(pszPath, fMode);
1041	if (RT_FAILURE (rc))
1042	{
1043	switch (rc)
1044	{
1045	case VERR_ALREADY_EXISTS:
1046	pParms->Result = SHFL_FILE_EXISTS;
1047	break;
1048	case VERR_PATH_NOT_FOUND:
1049	pParms->Result = SHFL_PATH_NOT_FOUND;
1050	break;
1051	default:
1052	pParms->Result = SHFL_NO_RESULT;
1053	}
1054	}
1055	}
1056	if ( RT_SUCCESS(rc)
1057	\|\| (SHFL_CF_ACT_OPEN_IF_EXISTS == BIT_FLAG(pParms->CreateFlags, SHFL_CF_ACT_MASK_IF_EXISTS)))
1058	{
1059	/* Open the directory now */
1060	rc = RTDirOpen (&pHandle->dir.Handle, pszPath);
1061	if (RT_SUCCESS(rc))
1062	{
1063	RTFSOBJINFO info;
1064
1065	rc = RTDirQueryInfo (pHandle->dir.Handle, &info, RTFSOBJATTRADD_NOTHING);
1066	if (RT_SUCCESS(rc))
1067	{
1068	vbfsCopyFsObjInfoFromIprt(&pParms->Info, &info);
1069	}
1070	}
1071	else
1072	{
1073	switch (rc)
1074	{
1075	case VERR_FILE_NOT_FOUND: /* Does this make sense? */
1076	pParms->Result = SHFL_FILE_NOT_FOUND;
1077	break;
1078	case VERR_PATH_NOT_FOUND:
1079	pParms->Result = SHFL_PATH_NOT_FOUND;
1080	break;
1081	case VERR_ACCESS_DENIED:
1082	pParms->Result = SHFL_FILE_EXISTS;
1083	break;
1084	default:
1085	pParms->Result = SHFL_NO_RESULT;
1086	}
1087	}
1088	}
1089	}
1090	if (RT_FAILURE(rc))
1091	{
1092	if ( (0 != pHandle)
1093	&& (0 != pHandle->dir.Handle))
1094	{
1095	RTDirClose(pHandle->dir.Handle);
1096	pHandle->dir.Handle = 0;
1097	}
1098	if (SHFL_HANDLE_NIL != handle)
1099	{
1100	vbsfFreeFileHandle (handle);
1101	}
1102	pParms->Handle = SHFL_HANDLE_NIL;
1103	}
1104	else
1105	{
1106	pParms->Handle = handle;
1107	}
1108	LogFlow(("vbsfOpenDir: rc = %Rrc\n", rc));
1109	return rc;
1110	}
1111
1112	static int vbsfCloseDir (SHFLFILEHANDLE *pHandle)
1113	{
1114	int rc = VINF_SUCCESS;
1115
1116	LogFlow(("vbsfCloseDir: Handle = %08X Search Handle = %08X\n",
1117	pHandle->dir.Handle, pHandle->dir.SearchHandle));
1118
1119	RTDirClose (pHandle->dir.Handle);
1120
1121	if (pHandle->dir.SearchHandle)
1122	RTDirClose(pHandle->dir.SearchHandle);
1123
1124	if (pHandle->dir.pLastValidEntry)
1125	{
1126	RTMemFree(pHandle->dir.pLastValidEntry);
1127	pHandle->dir.pLastValidEntry = NULL;
1128	}
1129
1130	LogFlow(("vbsfCloseDir: rc = %d\n", rc));
1131
1132	return rc;
1133	}
1134
1135
1136	static int vbsfCloseFile (SHFLFILEHANDLE *pHandle)
1137	{
1138	int rc = VINF_SUCCESS;
1139
1140	LogFlow(("vbsfCloseFile: Handle = %08X\n",
1141	pHandle->file.Handle));
1142
1143	rc = RTFileClose (pHandle->file.Handle);
1144
1145	LogFlow(("vbsfCloseFile: rc = %d\n", rc));
1146
1147	return rc;
1148	}
1149
1150	/**
1151	* Look up file or folder information by host path.
1152	*
1153	* @returns iprt status code (currently VINF_SUCCESS)
1154	* @param pszFullPath The path of the file to be looked up
1155	* @retval pParms->Result Status of the operation (success or error)
1156	* @retval pParms->Info On success, information returned about the file
1157	*/
1158	static int vbsfLookupFile(SHFLCLIENTDATA pClient, char pszPath, SHFLCREATEPARMS *pParms)
1159	{
1160	RTFSOBJINFO info;
1161	int rc;
1162
1163	rc = RTPathQueryInfoEx(pszPath, &info, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
1164	LogFlow(("SHFL_CF_LOOKUP\n"));
1165	/* Client just wants to know if the object exists. */
1166	switch (rc)
1167	{
1168	case VINF_SUCCESS:
1169	{
1170	#ifdef RT_OS_WINDOWS
1171	info.Attr.fMode \|= 0111;
1172	#endif
1173	vbfsCopyFsObjInfoFromIprt(&pParms->Info, &info);
1174	pParms->Result = SHFL_FILE_EXISTS;
1175	break;
1176	}
1177
1178	case VERR_FILE_NOT_FOUND:
1179	{
1180	pParms->Result = SHFL_FILE_NOT_FOUND;
1181	rc = VINF_SUCCESS;
1182	break;
1183	}
1184
1185	case VERR_PATH_NOT_FOUND:
1186	{
1187	pParms->Result = SHFL_PATH_NOT_FOUND;
1188	rc = VINF_SUCCESS;
1189	break;
1190	}
1191	}
1192	pParms->Handle = SHFL_HANDLE_NIL;
1193	return rc;
1194	}
1195
1196	/**
1197	* Create or open a file or folder. Perform character set and case
1198	* conversion on the file name if necessary.
1199	*
1200	* @returns IPRT status code, but see note below
1201	* @param pClient Data structure describing the client accessing the shared
1202	* folder
1203	* @param root The index of the shared folder in the table of mappings.
1204	* The host path of the shared folder is found using this.
1205	* @param pPath The path of the file or folder relative to the host path
1206	* indexed by root.
1207	* @param cbPath Presumably the length of the path in pPath. Actually
1208	* ignored, as pPath contains a length parameter.
1209	* @param pParms->Info If a new file is created or an old one overwritten, set
1210	* these attributes
1211	* @retval pParms->Result Shared folder result code, see include/VBox/shflsvc.h
1212	* @retval pParms->Handle Shared folder handle to the newly opened file
1213	* @retval pParms->Info Attributes of the file or folder opened
1214	*
1215	* @note This function returns success if a "non-exceptional" error occurred,
1216	* such as "no such file". In this case, the caller should check the
1217	* pParms->Result return value and whether pParms->Handle is valid.
1218	*/
1219	int vbsfCreate (SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pPath, uint32_t cbPath, SHFLCREATEPARMS *pParms)
1220	{
1221	int rc = VINF_SUCCESS;
1222
1223	LogFlow(("vbsfCreate: pClient = %p, pPath = %p, cbPath = %d, pParms = %p CreateFlags=%x\n",
1224	pClient, pPath, cbPath, pParms, pParms->CreateFlags));
1225
1226	/* Check the client access rights to the root. */
1227	/** @todo */
1228
1229	/* Build a host full path for the given path, handle file name case issues (if the guest
1230	* expects case-insensitive paths but the host is case-sensitive) and convert ucs2 to utf8 if
1231	* necessary.
1232	*/
1233	char *pszFullPath = NULL;
1234	uint32_t cbFullPathRoot = 0;
1235
1236	rc = vbsfBuildFullPath (pClient, root, pPath, cbPath, &pszFullPath, &cbFullPathRoot);
1237
1238	if (RT_SUCCESS (rc))
1239	{
1240	/* Reset return value in case client forgot to do so.
1241	* pParms->Handle must not be reset here, as it is used
1242	* in vbsfOpenFile to detect old additions.
1243	*/
1244	pParms->Result = SHFL_NO_RESULT;
1245
1246	if (BIT_FLAG(pParms->CreateFlags, SHFL_CF_LOOKUP))
1247	{
1248	rc = vbsfLookupFile(pClient, pszFullPath, pParms);
1249	}
1250	else
1251	{
1252	/* Query path information. */
1253	RTFSOBJINFO info;
1254
1255	rc = RTPathQueryInfoEx(pszFullPath, &info, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
1256	LogFlow(("RTPathQueryInfoEx returned %Rrc\n", rc));
1257
1258	if (RT_SUCCESS(rc))
1259	{
1260	/* Mark it as a directory in case the caller didn't. */
1261	/**
1262	* @todo I left this in in order not to change the behaviour of the
1263	* function too much. Is it really needed, and should it really be
1264	* here?
1265	*/
1266	if (BIT_FLAG(info.Attr.fMode, RTFS_DOS_DIRECTORY))
1267	{
1268	pParms->CreateFlags \|= SHFL_CF_DIRECTORY;
1269	}
1270
1271	/**
1272	* @todo This should be in the Windows Guest Additions, as no-one else
1273	* needs it.
1274	*/
1275	if (BIT_FLAG(pParms->CreateFlags, SHFL_CF_OPEN_TARGET_DIRECTORY))
1276	{
1277	vbsfStripLastComponent (pszFullPath, cbFullPathRoot);
1278	pParms->CreateFlags &= ~SHFL_CF_ACT_MASK_IF_EXISTS;
1279	pParms->CreateFlags &= ~SHFL_CF_ACT_MASK_IF_NEW;
1280	pParms->CreateFlags \|= SHFL_CF_DIRECTORY;
1281	pParms->CreateFlags \|= SHFL_CF_ACT_OPEN_IF_EXISTS;
1282	pParms->CreateFlags \|= SHFL_CF_ACT_FAIL_IF_NEW;
1283	}
1284	}
1285
1286	rc = VINF_SUCCESS;
1287
1288	/* Note: do not check the SHFL_CF_ACCESS_WRITE here, only check if the open operation
1289	* will cause changes.
1290	*
1291	* Actual operations (write, set attr, etc), which can write to a shared folder, have
1292	* the check and will return VERR_WRITE_PROTECT if the folder is not writable.
1293	*/
1294	if ( (pParms->CreateFlags & SHFL_CF_ACT_MASK_IF_EXISTS) == SHFL_CF_ACT_REPLACE_IF_EXISTS
1295	\|\| (pParms->CreateFlags & SHFL_CF_ACT_MASK_IF_EXISTS) == SHFL_CF_ACT_OVERWRITE_IF_EXISTS
1296	\|\| (pParms->CreateFlags & SHFL_CF_ACT_MASK_IF_NEW) == SHFL_CF_ACT_CREATE_IF_NEW
1297	)
1298	{
1299	/* is the guest allowed to write to this share? */
1300	bool fWritable;
1301	rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
1302	if (RT_FAILURE(rc) \|\| !fWritable)
1303	rc = VERR_WRITE_PROTECT;
1304	}
1305
1306	if (RT_SUCCESS(rc))
1307	{
1308	if (BIT_FLAG(pParms->CreateFlags, SHFL_CF_DIRECTORY))
1309	{
1310	rc = vbsfOpenDir (pszFullPath, pParms);
1311	}
1312	else
1313	{
1314	rc = vbsfOpenFile (pClient, pszFullPath, pParms);
1315	}
1316	}
1317	else
1318	{
1319	pParms->Handle = SHFL_HANDLE_NIL;
1320	}
1321	}
1322
1323	/* free the path string */
1324	vbsfFreeFullPath(pszFullPath);
1325	}
1326
1327	Log(("vbsfCreate: handle = %RX64 rc = %Rrc result=%x\n", (uint64_t)pParms->Handle, rc, pParms->Result));
1328
1329	return rc;
1330	}
1331
1332	int vbsfClose (SHFLCLIENTDATA *pClient, SHFLROOT root, SHFLHANDLE Handle)
1333	{
1334	int rc = VINF_SUCCESS;
1335
1336	LogFlow(("vbsfClose: pClient = %p, Handle = %RX64\n",
1337	pClient, Handle));
1338
1339	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR\|SHFL_HF_TYPE_FILE);
1340	//Assert(pHandle);
1341	if (!pHandle)
1342	return VERR_INVALID_HANDLE;
1343
1344	switch (ShflHandleType (&pHandle->Header))
1345	{
1346	case SHFL_HF_TYPE_DIR:
1347	{
1348	rc = vbsfCloseDir (pHandle);
1349	break;
1350	}
1351	case SHFL_HF_TYPE_FILE:
1352	{
1353	rc = vbsfCloseFile (pHandle);
1354	break;
1355	}
1356	default:
1357	AssertFailed();
1358	break;
1359	}
1360	vbsfFreeFileHandle(Handle);
1361
1362	Log(("vbsfClose: rc = %Rrc\n", rc));
1363
1364	return rc;
1365	}
1366
1367	int vbsfRead (SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint64_t offset, uint32_t pcbBuffer, uint8_t *pBuffer)
1368	{
1369	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1370	size_t count = 0;
1371	int rc;
1372
1373	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0)
1374	{
1375	AssertFailed();
1376	return VERR_INVALID_PARAMETER;
1377	}
1378
1379	Log(("vbsfRead %RX64 offset %RX64 bytes %x\n", Handle, offset, *pcbBuffer));
1380
1381	if (*pcbBuffer == 0)
1382	return VINF_SUCCESS; /* @todo correct? */
1383
1384
1385	rc = RTFileSeek(pHandle->file.Handle, offset, RTFILE_SEEK_BEGIN, NULL);
1386	if (rc != VINF_SUCCESS)
1387	{
1388	AssertRC(rc);
1389	return rc;
1390	}
1391
1392	rc = RTFileRead(pHandle->file.Handle, pBuffer, *pcbBuffer, &count);
1393	*pcbBuffer = (uint32_t)count;
1394	Log(("RTFileRead returned %Rrc bytes read %x\n", rc, count));
1395	return rc;
1396	}
1397
1398	int vbsfWrite (SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint64_t offset, uint32_t pcbBuffer, uint8_t *pBuffer)
1399	{
1400	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1401	size_t count = 0;
1402	int rc;
1403
1404	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0)
1405	{
1406	AssertFailed();
1407	return VERR_INVALID_PARAMETER;
1408	}
1409
1410	Log(("vbsfWrite %RX64 offset %RX64 bytes %x\n", Handle, offset, *pcbBuffer));
1411
1412	/* Is the guest allowed to write to this share?
1413	* XXX Actually this check was still done in vbsfCreate() -- RTFILE_O_WRITE cannot be set if vbsfMappingsQueryWritable() failed. */
1414	bool fWritable;
1415	rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
1416	if (RT_FAILURE(rc) \|\| !fWritable)
1417	return VERR_WRITE_PROTECT;
1418
1419	if (*pcbBuffer == 0)
1420	return VINF_SUCCESS; /** @todo correct? */
1421
1422	rc = RTFileSeek(pHandle->file.Handle, offset, RTFILE_SEEK_BEGIN, NULL);
1423	if (rc != VINF_SUCCESS)
1424	{
1425	AssertRC(rc);
1426	return rc;
1427	}
1428
1429	rc = RTFileWrite(pHandle->file.Handle, pBuffer, *pcbBuffer, &count);
1430	*pcbBuffer = (uint32_t)count;
1431	Log(("RTFileWrite returned %Rrc bytes written %x\n", rc, count));
1432	return rc;
1433	}
1434
1435
1436	int vbsfFlush(SHFLCLIENTDATA *pClient, SHFLROOT root, SHFLHANDLE Handle)
1437	{
1438	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1439	int rc = VINF_SUCCESS;
1440
1441	if (pHandle == 0)
1442	{
1443	AssertFailed();
1444	return VERR_INVALID_HANDLE;
1445	}
1446
1447	Log(("vbsfFlush %RX64\n", Handle));
1448	rc = RTFileFlush(pHandle->file.Handle);
1449	AssertRC(rc);
1450	return rc;
1451	}
1452
1453	int vbsfDirList(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, SHFLSTRING pPath, uint32_t flags,
1454	uint32_t pcbBuffer, uint8_t pBuffer, uint32_t pIndex, uint32_t pcFiles)
1455	{
1456	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR);
1457	PRTDIRENTRYEX pDirEntry = 0, pDirEntryOrg;
1458	uint32_t cbDirEntry, cbBufferOrg;
1459	int rc = VINF_SUCCESS;
1460	PSHFLDIRINFO pSFDEntry;
1461	PRTUTF16 pwszString;
1462	PRTDIR DirHandle;
1463	bool fUtf8;
1464
1465	fUtf8 = BIT_FLAG(pClient->fu32Flags, SHFL_CF_UTF8) != 0;
1466
1467	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0)
1468	{
1469	AssertFailed();
1470	return VERR_INVALID_PARAMETER;
1471	}
1472	Assert(pIndex && *pIndex == 0);
1473	DirHandle = pHandle->dir.Handle;
1474
1475	cbDirEntry = 4096;
1476	pDirEntryOrg = pDirEntry = (PRTDIRENTRYEX)RTMemAlloc(cbDirEntry);
1477	if (pDirEntry == 0)
1478	{
1479	AssertFailed();
1480	return VERR_NO_MEMORY;
1481	}
1482
1483	cbBufferOrg = *pcbBuffer;
1484	*pcbBuffer = 0;
1485	pSFDEntry = (PSHFLDIRINFO)pBuffer;
1486
1487	pIndex = 1; / not yet complete */
1488	*pcFiles = 0;
1489
1490	if (pPath)
1491	{
1492	if (pHandle->dir.SearchHandle == 0)
1493	{
1494	/* Build a host full path for the given path
1495	* and convert ucs2 to utf8 if necessary.
1496	*/
1497	char *pszFullPath = NULL;
1498
1499	Assert(pHandle->dir.pLastValidEntry == 0);
1500
1501	rc = vbsfBuildFullPath (pClient, root, pPath, pPath->u16Size, &pszFullPath, NULL, true);
1502
1503	if (RT_SUCCESS (rc))
1504	{
1505	rc = RTDirOpenFiltered (&pHandle->dir.SearchHandle, pszFullPath, RTDIRFILTER_WINNT);
1506
1507	/* free the path string */
1508	vbsfFreeFullPath(pszFullPath);
1509
1510	if (RT_FAILURE (rc))
1511	goto end;
1512	}
1513	else
1514	goto end;
1515	}
1516	Assert(pHandle->dir.SearchHandle);
1517	DirHandle = pHandle->dir.SearchHandle;
1518	}
1519
1520	while(cbBufferOrg)
1521	{
1522	size_t cbDirEntrySize = cbDirEntry;
1523	uint32_t cbNeeded;
1524
1525	/* Do we still have a valid last entry for the active search? If so, then return it here */
1526	if (pHandle->dir.pLastValidEntry)
1527	{
1528	pDirEntry = pHandle->dir.pLastValidEntry;
1529	}
1530	else
1531	{
1532	pDirEntry = pDirEntryOrg;
1533
1534	rc = RTDirReadEx(DirHandle, pDirEntry, &cbDirEntrySize, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
1535	if (rc == VERR_NO_MORE_FILES)
1536	{
1537	pIndex = 0; / listing completed */
1538	break;
1539	}
1540
1541	if ( rc != VINF_SUCCESS
1542	&& rc != VWRN_NO_DIRENT_INFO)
1543	{
1544	//AssertFailed();
1545	if ( rc == VERR_NO_TRANSLATION
1546	\|\| rc == VERR_INVALID_UTF8_ENCODING)
1547	continue;
1548	break;
1549	}
1550	}
1551
1552	cbNeeded = RT_OFFSETOF (SHFLDIRINFO, name.String);
1553	if (fUtf8)
1554	cbNeeded += pDirEntry->cbName + 1;
1555	else
1556	/* Overestimating, but that's ok */
1557	cbNeeded += (pDirEntry->cbName + 1) * 2;
1558
1559	if (cbBufferOrg < cbNeeded)
1560	{
1561	/* No room, so save this directory entry, or else it's lost forever */
1562	pHandle->dir.pLastValidEntry = pDirEntry;
1563
1564	if (*pcFiles == 0)
1565	{
1566	AssertFailed();
1567	return VINF_BUFFER_OVERFLOW; /* Return directly and don't free pDirEntry */
1568	}
1569	return VINF_SUCCESS; /* Return directly and don't free pDirEntry */
1570	}
1571
1572	#ifdef RT_OS_WINDOWS
1573	pDirEntry->Info.Attr.fMode \|= 0111;
1574	#endif
1575	vbfsCopyFsObjInfoFromIprt(&pSFDEntry->Info, &pDirEntry->Info);
1576	pSFDEntry->cucShortName = 0;
1577
1578	if (fUtf8)
1579	{
1580	void src, dst;
1581
1582	src = &pDirEntry->szName[0];
1583	dst = &pSFDEntry->name.String.utf8[0];
1584
1585	memcpy (dst, src, pDirEntry->cbName + 1);
1586
1587	pSFDEntry->name.u16Size = pDirEntry->cbName + 1;
1588	pSFDEntry->name.u16Length = pDirEntry->cbName;
1589	}
1590	else
1591	{
1592	pSFDEntry->name.String.ucs2[0] = 0;
1593	pwszString = pSFDEntry->name.String.ucs2;
1594	int rc2 = RTStrToUtf16Ex(pDirEntry->szName, RTSTR_MAX, &pwszString, pDirEntry->cbName+1, NULL);
1595	AssertRC(rc2);
1596
1597	#ifdef RT_OS_DARWIN
1598	/** @todo This belongs in rtPathToNative or in the windows shared folder file system driver...
1599	* The question is simply whether the NFD normalization is actually applied on a (virtual) file
1600	* system level in darwin, or just by the user mode application libs. */
1601	{
1602	// Convert to
1603	// Normalization Form C (composed Unicode). We need this because
1604	// Mac OS X file system uses NFD (Normalization Form D :decomposed Unicode)
1605	// while most other OS', server-side programs usually expect NFC.
1606	uint16_t ucs2Length;
1607	CFRange rangeCharacters;
1608	CFMutableStringRef inStr = ::CFStringCreateMutable(NULL, 0);
1609
1610	::CFStringAppendCharacters(inStr, (UniChar *)pwszString, RTUtf16Len (pwszString));
1611	::CFStringNormalize(inStr, kCFStringNormalizationFormC);
1612	ucs2Length = ::CFStringGetLength(inStr);
1613
1614	rangeCharacters.location = 0;
1615	rangeCharacters.length = ucs2Length;
1616	::CFStringGetCharacters(inStr, rangeCharacters, pwszString);
1617	pwszString[ucs2Length] = 0x0000; // NULL terminated
1618
1619	CFRelease(inStr);
1620	}
1621	#endif
1622	pSFDEntry->name.u16Length = (uint32_t)RTUtf16Len (pSFDEntry->name.String.ucs2) * 2;
1623	pSFDEntry->name.u16Size = pSFDEntry->name.u16Length + 2;
1624
1625	Log(("SHFL: File name size %d\n", pSFDEntry->name.u16Size));
1626	Log(("SHFL: File name %ls\n", &pSFDEntry->name.String.ucs2));
1627
1628	// adjust cbNeeded (it was overestimated before)
1629	cbNeeded = RT_OFFSETOF (SHFLDIRINFO, name.String) + pSFDEntry->name.u16Size;
1630	}
1631
1632	pSFDEntry = (PSHFLDIRINFO)((uintptr_t)pSFDEntry + cbNeeded);
1633	*pcbBuffer += cbNeeded;
1634	cbBufferOrg-= cbNeeded;
1635
1636	*pcFiles += 1;
1637
1638	/* Free the saved last entry, that we've just returned */
1639	if (pHandle->dir.pLastValidEntry)
1640	{
1641	RTMemFree(pHandle->dir.pLastValidEntry);
1642	pHandle->dir.pLastValidEntry = NULL;
1643	}
1644
1645	if (flags & SHFL_LIST_RETURN_ONE)
1646	break; /* we're done */
1647	}
1648	Assert(rc != VINF_SUCCESS \|\| *pcbBuffer > 0);
1649
1650	end:
1651	if (pDirEntry)
1652	RTMemFree(pDirEntry);
1653
1654	return rc;
1655	}
1656
1657	int vbsfReadLink(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pPath, uint32_t cbPath, uint8_t *pBuffer, uint32_t cbBuffer)
1658	{
1659	int rc = VINF_SUCCESS;
1660
1661	if (pPath == 0 \|\| pBuffer == 0)
1662	{
1663	AssertFailed();
1664	return VERR_INVALID_PARAMETER;
1665	}
1666
1667	/* Build a host full path for the given path, handle file name case issues
1668	* (if the guest expects case-insensitive paths but the host is
1669	* case-sensitive) and convert ucs2 to utf8 if necessary.
1670	*/
1671	char *pszFullPath = NULL;
1672	uint32_t cbFullPathRoot = 0;
1673
1674	rc = vbsfBuildFullPath (pClient, root, pPath, cbPath, &pszFullPath, &cbFullPathRoot);
1675
1676	if (RT_SUCCESS (rc))
1677	{
1678	rc = RTSymlinkRead(pszFullPath, (char *) pBuffer, cbBuffer);
1679
1680	/* free the path string */
1681	vbsfFreeFullPath(pszFullPath);
1682	}
1683
1684	return rc;
1685	}
1686
1687	int vbsfQueryFileInfo(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1688	{
1689	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR\|SHFL_HF_TYPE_FILE);
1690	int rc = VINF_SUCCESS;
1691	SHFLFSOBJINFO pObjInfo = (SHFLFSOBJINFO )pBuffer;
1692	RTFSOBJINFO fileinfo;
1693
1694
1695	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pObjInfo == 0 \|\| *pcbBuffer < sizeof(SHFLFSOBJINFO))
1696	{
1697	AssertFailed();
1698	return VERR_INVALID_PARAMETER;
1699	}
1700
1701	/* @todo other options */
1702	Assert(flags == (SHFL_INFO_GET\|SHFL_INFO_FILE));
1703
1704	*pcbBuffer = 0;
1705
1706	if (pHandle->Header.u32Flags & SHFL_HF_TYPE_DIR)
1707	{
1708	rc = RTDirQueryInfo(pHandle->dir.Handle, &fileinfo, RTFSOBJATTRADD_NOTHING);
1709	}
1710	else
1711	{
1712	rc = RTFileQueryInfo(pHandle->file.Handle, &fileinfo, RTFSOBJATTRADD_NOTHING);
1713	#ifdef RT_OS_WINDOWS
1714	if (RT_SUCCESS(rc) && RTFS_IS_FILE(pObjInfo->Attr.fMode))
1715	pObjInfo->Attr.fMode \|= 0111;
1716	#endif
1717	}
1718	if (rc == VINF_SUCCESS)
1719	{
1720	vbfsCopyFsObjInfoFromIprt(pObjInfo, &fileinfo);
1721	*pcbBuffer = sizeof(SHFLFSOBJINFO);
1722	}
1723	else
1724	AssertFailed();
1725
1726	return rc;
1727	}
1728
1729	static int vbsfSetFileInfo(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1730	{
1731	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR\|SHFL_HF_TYPE_FILE);
1732	int rc = VINF_SUCCESS;
1733	SHFLFSOBJINFO *pSFDEntry;
1734
1735	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0 \|\| *pcbBuffer < sizeof(SHFLFSOBJINFO))
1736	{
1737	AssertFailed();
1738	return VERR_INVALID_PARAMETER;
1739	}
1740
1741	*pcbBuffer = 0;
1742	pSFDEntry = (SHFLFSOBJINFO *)pBuffer;
1743
1744	Assert(flags == (SHFL_INFO_SET \| SHFL_INFO_FILE));
1745
1746	/* Change only the time values that are not zero */
1747	if (pHandle->Header.u32Flags & SHFL_HF_TYPE_DIR)
1748	{
1749	rc = RTDirSetTimes(pHandle->dir.Handle,
1750	(RTTimeSpecGetNano(&pSFDEntry->AccessTime)) ? &pSFDEntry->AccessTime : NULL,
1751	(RTTimeSpecGetNano(&pSFDEntry->ModificationTime)) ? &pSFDEntry->ModificationTime: NULL,
1752	(RTTimeSpecGetNano(&pSFDEntry->ChangeTime)) ? &pSFDEntry->ChangeTime: NULL,
1753	(RTTimeSpecGetNano(&pSFDEntry->BirthTime)) ? &pSFDEntry->BirthTime: NULL
1754	);
1755	}
1756	else
1757	{
1758	rc = RTFileSetTimes(pHandle->file.Handle,
1759	(RTTimeSpecGetNano(&pSFDEntry->AccessTime)) ? &pSFDEntry->AccessTime : NULL,
1760	(RTTimeSpecGetNano(&pSFDEntry->ModificationTime)) ? &pSFDEntry->ModificationTime: NULL,
1761	(RTTimeSpecGetNano(&pSFDEntry->ChangeTime)) ? &pSFDEntry->ChangeTime: NULL,
1762	(RTTimeSpecGetNano(&pSFDEntry->BirthTime)) ? &pSFDEntry->BirthTime: NULL
1763	);
1764	}
1765	if (rc != VINF_SUCCESS)
1766	{
1767	Log(("RTFileSetTimes failed with %Rrc\n", rc));
1768	Log(("AccessTime %RX64\n", RTTimeSpecGetNano(&pSFDEntry->AccessTime)));
1769	Log(("ModificationTime %RX64\n", RTTimeSpecGetNano(&pSFDEntry->ModificationTime)));
1770	Log(("ChangeTime %RX64\n", RTTimeSpecGetNano(&pSFDEntry->ChangeTime)));
1771	Log(("BirthTime %RX64\n", RTTimeSpecGetNano(&pSFDEntry->BirthTime)));
1772	/* temporary hack */
1773	rc = VINF_SUCCESS;
1774	}
1775
1776	if (pHandle->Header.u32Flags & SHFL_HF_TYPE_FILE)
1777	{
1778	/* Change file attributes if necessary */
1779	if (pSFDEntry->Attr.fMode)
1780	{
1781	RTFMODE fMode = pSFDEntry->Attr.fMode;
1782
1783	#ifndef RT_OS_WINDOWS
1784	/* Don't allow the guest to clear the own bit, otherwise the guest wouldn't be
1785	* able to access this file anymore. Only for guests, which set the UNIX mode. */
1786	if (fMode & RTFS_UNIX_MASK)
1787	fMode \|= RTFS_UNIX_IRUSR;
1788	#endif
1789
1790	rc = RTFileSetMode((RTFILE)pHandle->file.Handle, fMode);
1791	if (rc != VINF_SUCCESS)
1792	{
1793	Log(("RTFileSetMode %x failed with %Rrc\n", fMode, rc));
1794	/* silent failure, because this tends to fail with e.g. windows guest & linux host */
1795	rc = VINF_SUCCESS;
1796	}
1797	}
1798	}
1799	/* TODO: mode for directories */
1800
1801	if (rc == VINF_SUCCESS)
1802	{
1803	uint32_t bufsize = sizeof(*pSFDEntry);
1804
1805	rc = vbsfQueryFileInfo(pClient, root, Handle, SHFL_INFO_GET\|SHFL_INFO_FILE, &bufsize, (uint8_t *)pSFDEntry);
1806	if (rc == VINF_SUCCESS)
1807	{
1808	*pcbBuffer = sizeof(SHFLFSOBJINFO);
1809	}
1810	else
1811	AssertFailed();
1812	}
1813
1814	return rc;
1815	}
1816
1817
1818	static int vbsfSetEndOfFile(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1819	{
1820	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1821	int rc = VINF_SUCCESS;
1822	SHFLFSOBJINFO *pSFDEntry;
1823
1824	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0 \|\| *pcbBuffer < sizeof(SHFLFSOBJINFO))
1825	{
1826	AssertFailed();
1827	return VERR_INVALID_PARAMETER;
1828	}
1829
1830	*pcbBuffer = 0;
1831	pSFDEntry = (SHFLFSOBJINFO *)pBuffer;
1832
1833	if (flags & SHFL_INFO_SIZE)
1834	{
1835	rc = RTFileSetSize(pHandle->file.Handle, pSFDEntry->cbObject);
1836	if (rc != VINF_SUCCESS)
1837	AssertFailed();
1838	}
1839	else
1840	AssertFailed();
1841
1842	if (rc == VINF_SUCCESS)
1843	{
1844	RTFSOBJINFO fileinfo;
1845
1846	/* Query the new object info and return it */
1847	rc = RTFileQueryInfo(pHandle->file.Handle, &fileinfo, RTFSOBJATTRADD_NOTHING);
1848	if (rc == VINF_SUCCESS)
1849	{
1850	#ifdef RT_OS_WINDOWS
1851	fileinfo.Attr.fMode \|= 0111;
1852	#endif
1853	vbfsCopyFsObjInfoFromIprt(pSFDEntry, &fileinfo);
1854	*pcbBuffer = sizeof(SHFLFSOBJINFO);
1855	}
1856	else
1857	AssertFailed();
1858	}
1859
1860	return rc;
1861	}
1862
1863	int vbsfQueryVolumeInfo(SHFLCLIENTDATA pClient, SHFLROOT root, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1864	{
1865	int rc = VINF_SUCCESS;
1866	SHFLVOLINFO *pSFDEntry;
1867	char *pszFullPath = NULL;
1868	SHFLSTRING dummy;
1869
1870	if (pcbBuffer == 0 \|\| pBuffer == 0 \|\| *pcbBuffer < sizeof(SHFLVOLINFO))
1871	{
1872	AssertFailed();
1873	return VERR_INVALID_PARAMETER;
1874	}
1875
1876	/* @todo other options */
1877	Assert(flags == (SHFL_INFO_GET\|SHFL_INFO_VOLUME));
1878
1879	*pcbBuffer = 0;
1880	pSFDEntry = (PSHFLVOLINFO)pBuffer;
1881
1882	ShflStringInitBuffer(&dummy, sizeof(dummy));
1883	rc = vbsfBuildFullPath (pClient, root, &dummy, 0, &pszFullPath, NULL);
1884
1885	if (RT_SUCCESS (rc))
1886	{
1887	rc = RTFsQuerySizes(pszFullPath, &pSFDEntry->ullTotalAllocationBytes, &pSFDEntry->ullAvailableAllocationBytes, &pSFDEntry->ulBytesPerAllocationUnit, &pSFDEntry->ulBytesPerSector);
1888	if (rc != VINF_SUCCESS)
1889	goto exit;
1890
1891	rc = RTFsQuerySerial(pszFullPath, &pSFDEntry->ulSerial);
1892	if (rc != VINF_SUCCESS)
1893	goto exit;
1894
1895	RTFSPROPERTIES FsProperties;
1896	rc = RTFsQueryProperties(pszFullPath, &FsProperties);
1897	if (rc != VINF_SUCCESS)
1898	goto exit;
1899	vbfsCopyFsPropertiesFromIprt(&pSFDEntry->fsProperties, &FsProperties);
1900
1901	*pcbBuffer = sizeof(SHFLVOLINFO);
1902	}
1903	else AssertFailed();
1904
1905	exit:
1906	AssertMsg(rc == VINF_SUCCESS, ("failure: rc = %Rrc\n", rc));
1907	/* free the path string */
1908	vbsfFreeFullPath(pszFullPath);
1909	return rc;
1910	}
1911
1912	int vbsfQueryFSInfo(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1913	{
1914	if (pcbBuffer == 0 \|\| pBuffer == 0)
1915	{
1916	AssertFailed();
1917	return VERR_INVALID_PARAMETER;
1918	}
1919
1920	if (flags & SHFL_INFO_FILE)
1921	return vbsfQueryFileInfo(pClient, root, Handle, flags, pcbBuffer, pBuffer);
1922
1923	if (flags & SHFL_INFO_VOLUME)
1924	return vbsfQueryVolumeInfo(pClient, root, flags, pcbBuffer, pBuffer);
1925
1926	AssertFailed();
1927	return VERR_INVALID_PARAMETER;
1928	}
1929
1930	int vbsfSetFSInfo(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLHANDLE Handle, uint32_t flags, uint32_t pcbBuffer, uint8_t *pBuffer)
1931	{
1932	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_DIR\|SHFL_HF_TYPE_FILE\|SHFL_HF_TYPE_VOLUME);
1933
1934	if (pHandle == 0 \|\| pcbBuffer == 0 \|\| pBuffer == 0)
1935	{
1936	AssertFailed();
1937	return VERR_INVALID_PARAMETER;
1938	}
1939
1940	/* is the guest allowed to write to this share? */
1941	bool fWritable;
1942	int rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
1943	if (RT_FAILURE(rc) \|\| !fWritable)
1944	return VERR_WRITE_PROTECT;
1945
1946	if (flags & SHFL_INFO_FILE)
1947	return vbsfSetFileInfo(pClient, root, Handle, flags, pcbBuffer, pBuffer);
1948
1949	if (flags & SHFL_INFO_SIZE)
1950	return vbsfSetEndOfFile(pClient, root, Handle, flags, pcbBuffer, pBuffer);
1951
1952	// if (flags & SHFL_INFO_VOLUME)
1953	// return vbsfVolumeInfo(pClient, root, Handle, flags, pcbBuffer, pBuffer);
1954	AssertFailed();
1955	return VERR_INVALID_PARAMETER;
1956	}
1957
1958	int vbsfLock(SHFLCLIENTDATA *pClient, SHFLROOT root, SHFLHANDLE Handle, uint64_t offset, uint64_t length, uint32_t flags)
1959	{
1960	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
1961	uint32_t fRTLock = 0;
1962	int rc;
1963
1964	Assert((flags & SHFL_LOCK_MODE_MASK) != SHFL_LOCK_CANCEL);
1965
1966	if (pHandle == 0)
1967	{
1968	AssertFailed();
1969	return VERR_INVALID_HANDLE;
1970	}
1971	if ( ((flags & SHFL_LOCK_MODE_MASK) == SHFL_LOCK_CANCEL)
1972	\|\| (flags & SHFL_LOCK_ENTIRE)
1973	)
1974	{
1975	AssertFailed();
1976	return VERR_INVALID_PARAMETER;
1977	}
1978
1979	/* Lock type */
1980	switch(flags & SHFL_LOCK_MODE_MASK)
1981	{
1982	case SHFL_LOCK_SHARED:
1983	fRTLock = RTFILE_LOCK_READ;
1984	break;
1985
1986	case SHFL_LOCK_EXCLUSIVE:
1987	fRTLock = RTFILE_LOCK_READ \| RTFILE_LOCK_WRITE;
1988	break;
1989
1990	default:
1991	AssertFailed();
1992	return VERR_INVALID_PARAMETER;
1993	}
1994
1995	/* Lock wait type */
1996	if (flags & SHFL_LOCK_WAIT)
1997	fRTLock \|= RTFILE_LOCK_WAIT;
1998	else
1999	fRTLock \|= RTFILE_LOCK_IMMEDIATELY;
2000
2001	#ifdef RT_OS_WINDOWS
2002	rc = RTFileLock(pHandle->file.Handle, fRTLock, offset, length);
2003	if (rc != VINF_SUCCESS)
2004	Log(("RTFileLock %RTfile %RX64 %RX64 failed with %Rrc\n", pHandle->file.Handle, offset, length, rc));
2005	#else
2006	Log(("vbsfLock: Pretend success handle=%x\n", Handle));
2007	rc = VINF_SUCCESS;
2008	#endif
2009	return rc;
2010	}
2011
2012	int vbsfUnlock(SHFLCLIENTDATA *pClient, SHFLROOT root, SHFLHANDLE Handle, uint64_t offset, uint64_t length, uint32_t flags)
2013	{
2014	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(Handle, SHFL_HF_TYPE_FILE);
2015	int rc;
2016
2017	Assert((flags & SHFL_LOCK_MODE_MASK) == SHFL_LOCK_CANCEL);
2018
2019	if (pHandle == 0)
2020	{
2021	return VERR_INVALID_HANDLE;
2022	}
2023	if ( ((flags & SHFL_LOCK_MODE_MASK) != SHFL_LOCK_CANCEL)
2024	\|\| (flags & SHFL_LOCK_ENTIRE)
2025	)
2026	{
2027	return VERR_INVALID_PARAMETER;
2028	}
2029
2030	#ifdef RT_OS_WINDOWS
2031	rc = RTFileUnlock(pHandle->file.Handle, offset, length);
2032	if (rc != VINF_SUCCESS)
2033	Log(("RTFileUnlock %RTfile %RX64 %RTX64 failed with %Rrc\n", pHandle->file.Handle, offset, length, rc));
2034	#else
2035	Log(("vbsfUnlock: Pretend success handle=%x\n", Handle));
2036	rc = VINF_SUCCESS;
2037	#endif
2038
2039	return rc;
2040	}
2041
2042
2043	int vbsfRemove(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pPath, uint32_t cbPath, uint32_t flags)
2044	{
2045	int rc = VINF_SUCCESS;
2046
2047	/* Validate input */
2048	if ( flags & ~(SHFL_REMOVE_FILE\|SHFL_REMOVE_DIR\|SHFL_REMOVE_SYMLINK)
2049	\|\| cbPath == 0
2050	\|\| pPath == 0)
2051	{
2052	AssertFailed();
2053	return VERR_INVALID_PARAMETER;
2054	}
2055
2056	/* Build a host full path for the given path
2057	* and convert ucs2 to utf8 if necessary.
2058	*/
2059	char *pszFullPath = NULL;
2060
2061	rc = vbsfBuildFullPath (pClient, root, pPath, cbPath, &pszFullPath, NULL);
2062	if (RT_SUCCESS (rc))
2063	{
2064	/* is the guest allowed to write to this share? */
2065	bool fWritable;
2066	rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
2067	if (RT_FAILURE(rc) \|\| !fWritable)
2068	rc = VERR_WRITE_PROTECT;
2069
2070	if (RT_SUCCESS (rc))
2071	{
2072	if (flags & SHFL_REMOVE_SYMLINK)
2073	rc = RTSymlinkDelete(pszFullPath);
2074	else if (flags & SHFL_REMOVE_FILE)
2075	rc = RTFileDelete(pszFullPath);
2076	else
2077	rc = RTDirRemove(pszFullPath);
2078	}
2079
2080	#ifndef DEBUG_dmik
2081	// VERR_ACCESS_DENIED for example?
2082	// Assert(rc == VINF_SUCCESS \|\| rc == VERR_DIR_NOT_EMPTY);
2083	#endif
2084	/* free the path string */
2085	vbsfFreeFullPath(pszFullPath);
2086	}
2087	return rc;
2088	}
2089
2090
2091	int vbsfRename(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pSrc, SHFLSTRING *pDest, uint32_t flags)
2092	{
2093	int rc = VINF_SUCCESS;
2094
2095	/* Validate input */
2096	if ( flags & ~(SHFL_REMOVE_FILE\|SHFL_REMOVE_DIR\|SHFL_RENAME_REPLACE_IF_EXISTS)
2097	\|\| pSrc == 0
2098	\|\| pDest == 0)
2099	{
2100	AssertFailed();
2101	return VERR_INVALID_PARAMETER;
2102	}
2103
2104	/* Build a host full path for the given path
2105	* and convert ucs2 to utf8 if necessary.
2106	*/
2107	char *pszFullPathSrc = NULL;
2108	char *pszFullPathDest = NULL;
2109
2110	rc = vbsfBuildFullPath (pClient, root, pSrc, pSrc->u16Size, &pszFullPathSrc, NULL);
2111	if (rc != VINF_SUCCESS)
2112	return rc;
2113
2114	rc = vbsfBuildFullPath (pClient, root, pDest, pDest->u16Size, &pszFullPathDest, NULL, false, true);
2115	if (RT_SUCCESS (rc))
2116	{
2117	Log(("Rename %s to %s\n", pszFullPathSrc, pszFullPathDest));
2118
2119	/* is the guest allowed to write to this share? */
2120	bool fWritable;
2121	rc = vbsfMappingsQueryWritable (pClient, root, &fWritable);
2122	if (RT_FAILURE(rc) \|\| !fWritable)
2123	rc = VERR_WRITE_PROTECT;
2124
2125	if (RT_SUCCESS (rc))
2126	{
2127	if (flags & SHFL_RENAME_FILE)
2128	{
2129	rc = RTFileMove(pszFullPathSrc, pszFullPathDest, (flags & SHFL_RENAME_REPLACE_IF_EXISTS) ? RTFILEMOVE_FLAGS_REPLACE : 0);
2130	}
2131	else
2132	{
2133	/* NT ignores the REPLACE flag and simply return and already exists error. */
2134	rc = RTDirRename(pszFullPathSrc, pszFullPathDest, (flags & SHFL_RENAME_REPLACE_IF_EXISTS) ? RTPATHRENAME_FLAGS_REPLACE : 0);
2135	}
2136	}
2137
2138	#ifndef DEBUG_dmik
2139	AssertRC(rc);
2140	#endif
2141	/* free the path string */
2142	vbsfFreeFullPath(pszFullPathDest);
2143	}
2144	/* free the path string */
2145	vbsfFreeFullPath(pszFullPathSrc);
2146	return rc;
2147	}
2148
2149	int vbsfSymlink(SHFLCLIENTDATA pClient, SHFLROOT root, SHFLSTRING pNewPath, SHFLSTRING pOldPath, RTFSOBJINFO pInfo)
2150	{
2151	int rc = VINF_SUCCESS;
2152
2153	char *pszFullNewPath = NULL;
2154	char *pszOldPath = NULL;
2155
2156	/* XXX: no support for UCS2 at the moment. */
2157	if (!BIT_FLAG(pClient->fu32Flags, SHFL_CF_UTF8))
2158	return VERR_NOT_IMPLEMENTED;
2159
2160	rc = vbsfBuildFullPath (pClient, root, pNewPath, pNewPath->u16Size, &pszFullNewPath, NULL);
2161	if (rc != VINF_SUCCESS)
2162	return rc;
2163
2164	rc = RTSymlinkCreate(pszFullNewPath, (const char *)pOldPath->String.utf8, RTSYMLINKTYPE_UNKNOWN);
2165	if (RT_SUCCESS (rc))
2166	rc = RTPathQueryInfoEx(pszFullNewPath, pInfo, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
2167
2168	vbsfFreeFullPath(pszFullNewPath);
2169
2170	return rc;
2171	}
2172
2173	/*
2174	* Clean up our mess by freeing all handles that are still valid.
2175	*
2176	*/
2177	int vbsfDisconnect(SHFLCLIENTDATA *pClient)
2178	{
2179	for (int i=0;i<SHFLHANDLE_MAX;i++)
2180	{
2181	SHFLFILEHANDLE pHandle = (SHFLFILEHANDLE )vbsfQueryHandle(i, SHFL_HF_TYPE_MASK);
2182
2183	if (pHandle)
2184	{
2185	Log(("Open handle %08x\n", i));
2186	vbsfClose(pClient, SHFL_HANDLE_ROOT /* incorrect, but it's not important */, (SHFLHANDLE)i);
2187	}
2188	}
2189	return VINF_SUCCESS;
2190	}

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source: vbox/trunk/src/VBox/HostServices/SharedFolders/vbsf.cpp@ 34078

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