mirror of
https://github.com/reactos/reactos.git
synced 2024-07-11 15:15:27 +00:00
[fastfat_new]
- Fix an incorrectly placed closing bracket which resulted in ignoring almost all actions when performing relative open. This results in a massive reformatting of FatiCreate. svn path=/trunk/; revision=43644
This commit is contained in:
Aleksey Bragin
parent
108af8baae
commit
eb5cc63a28
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@ -605,262 +605,47 @@ FatiCreate(IN PFAT_IRP_CONTEXT IrpContext,
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ParentDcb = Vcb->RootDcb;
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DPRINT("ParentDcb %p\n", ParentDcb);
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}
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}
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/* Check for backslash at the end */
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if (FileName.Length &&
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FileName.Buffer[FileName.Length / sizeof(WCHAR) - 1] == L'\\')
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/* Check for backslash at the end */
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if (FileName.Length &&
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FileName.Buffer[FileName.Length / sizeof(WCHAR) - 1] == L'\\')
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{
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/* Cut it out */
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FileName.Length -= sizeof(WCHAR);
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/* Remember we cut it */
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EndBackslash = TRUE;
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}
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/* Ensure the name is set */
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if (!ParentDcb->FullFileName.Buffer)
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{
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/* Set it if it's missing */
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FatSetFullFileNameInFcb(IrpContext, ParentDcb);
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}
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/* Check max path length */
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if (ParentDcb->FullFileName.Length + FileName.Length + sizeof(WCHAR) <= FileName.Length)
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{
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DPRINT1("Max length is way off\n");
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Iosb.Status = STATUS_OBJECT_NAME_INVALID;
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ASSERT(FALSE);
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}
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/* Loop through FCBs to find a good one */
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while (TRUE)
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{
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Fcb = ParentDcb;
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/* Dissect the name */
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RemainingPart = FileName;
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while (RemainingPart.Length)
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{
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/* Cut it out */
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FileName.Length -= sizeof(WCHAR);
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/* Remember we cut it */
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EndBackslash = TRUE;
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}
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/* Ensure the name is set */
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if (!ParentDcb->FullFileName.Buffer)
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{
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/* Set it if it's missing */
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FatSetFullFileNameInFcb(IrpContext, ParentDcb);
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}
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/* Check max path length */
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if (ParentDcb->FullFileName.Length + FileName.Length + sizeof(WCHAR) <= FileName.Length)
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{
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DPRINT1("Max length is way off\n");
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Iosb.Status = STATUS_OBJECT_NAME_INVALID;
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ASSERT(FALSE);
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}
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/* Loop through FCBs to find a good one */
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while (TRUE)
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{
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Fcb = ParentDcb;
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/* Dissect the name */
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RemainingPart = FileName;
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while (RemainingPart.Length)
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{
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FsRtlDissectName(RemainingPart, &FirstName, &NextName);
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/* Check for validity */
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if ((NextName.Length && NextName.Buffer[0] == L'\\') ||
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(NextName.Length > 255 * sizeof(WCHAR)))
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{
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/* The name is invalid */
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DPRINT1("Invalid name found\n");
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Iosb.Status = STATUS_OBJECT_NAME_INVALID;
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ASSERT(FALSE);
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}
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/* Convert the name to ANSI */
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AnsiFirstName.Buffer = ExAllocatePool(PagedPool, FirstName.Length);
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AnsiFirstName.Length = 0;
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AnsiFirstName.MaximumLength = FirstName.Length;
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Status = RtlUpcaseUnicodeStringToCountedOemString(&AnsiFirstName, &FirstName, FALSE);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("RtlUpcaseUnicodeStringToCountedOemString() failed with 0x%08x\n", Status);
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ASSERT(FALSE);
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NextFcb = NULL;
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AnsiFirstName.Length = 0;
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}
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else
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{
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/* Find the coresponding FCB */
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NextFcb = FatFindFcb(IrpContext,
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&Fcb->Dcb.SplayLinksAnsi,
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(PSTRING)&AnsiFirstName,
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&OpenedAsDos);
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}
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/* If nothing found - try with unicode */
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if (!NextFcb && Fcb->Dcb.SplayLinksUnicode)
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{
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FileNameUpcased.Buffer = FsRtlAllocatePool(PagedPool, FirstName.Length);
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FileNameUpcased.Length = 0;
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FileNameUpcased.MaximumLength = FirstName.Length;
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/* Downcase and then upcase to normalize it */
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Status = RtlDowncaseUnicodeString(&FileNameUpcased, &FirstName, FALSE);
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Status = RtlUpcaseUnicodeString(&FileNameUpcased, &FileNameUpcased, FALSE);
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/* Try to find FCB again using unicode name */
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NextFcb = FatFindFcb(IrpContext,
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&Fcb->Dcb.SplayLinksUnicode,
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(PSTRING)&FileNameUpcased,
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&OpenedAsDos);
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}
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/* Move to the next FCB */
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if (NextFcb)
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{
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Fcb = NextFcb;
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RemainingPart = NextName;
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}
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/* Break out of this loop if nothing can be found */
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if (!NextFcb ||
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NextName.Length == 0 ||
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FatNodeType(NextFcb) == FAT_NTC_FCB)
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{
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break;
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}
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}
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/* Ensure remaining name doesn't start from a backslash */
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if (RemainingPart.Length &&
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RemainingPart.Buffer[0] == L'\\')
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{
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/* Cut it */
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RemainingPart.Buffer++;
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RemainingPart.Length -= sizeof(WCHAR);
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}
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if (Fcb->Condition == FcbGood)
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{
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/* Good FCB, break out of the loop */
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break;
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}
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else
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{
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ASSERT(FALSE);
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}
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}
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/* We have a valid FCB now */
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if (!RemainingPart.Length)
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{
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/* Check for target dir open */
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if (OpenTargetDirectory)
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{
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DPRINT1("Opening target dir is missing\n");
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ASSERT(FALSE);
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}
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/* Check this FCB's type */
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if (FatNodeType(Fcb) == FAT_NTC_ROOT_DCB ||
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FatNodeType(Fcb) == FAT_NTC_DCB)
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{
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/* Open a directory */
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if (NonDirectoryFile)
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{
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/* Forbidden */
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Iosb.Status = STATUS_FILE_IS_A_DIRECTORY;
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ASSERT(FALSE);
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return Iosb.Status;
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}
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/* Open existing DCB */
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Iosb = FatiOpenExistingDcb(IrpContext,
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FileObject,
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Vcb,
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Fcb,
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DesiredAccess,
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ShareAccess,
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CreateDisposition,
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NoEaKnowledge,
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DeleteOnClose);
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/* Save information */
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Irp->IoStatus.Information = Iosb.Information;
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/* Unlock VCB */
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FatReleaseVcb(IrpContext, Vcb);
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/* Complete the request */
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FatCompleteRequest(IrpContext, Irp, Iosb.Status);
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return Iosb.Status;
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}
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else if (FatNodeType(Fcb) == FAT_NTC_FCB)
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{
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/* Open a file */
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if (OpenDirectory)
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{
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/* Forbidden */
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Iosb.Status = STATUS_NOT_A_DIRECTORY;
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ASSERT(FALSE);
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return Iosb.Status;
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}
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/* Check for trailing backslash */
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if (EndBackslash)
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{
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/* Forbidden */
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Iosb.Status = STATUS_OBJECT_NAME_INVALID;
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ASSERT(FALSE);
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return Iosb.Status;
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}
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Iosb = FatiOpenExistingFcb(IrpContext,
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FileObject,
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Vcb,
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Fcb,
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DesiredAccess,
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ShareAccess,
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AllocationSize,
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EaBuffer,
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EaLength,
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FileAttributes,
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CreateDisposition,
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NoEaKnowledge,
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DeleteOnClose,
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OpenedAsDos,
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&OplockPostIrp);
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/* Check if it's pending */
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if (Iosb.Status != STATUS_PENDING)
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{
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/* In case of success set cache supported flag */
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if (NT_SUCCESS(Iosb.Status) && !NoIntermediateBuffering)
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{
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SetFlag(FileObject->Flags, FO_CACHE_SUPPORTED);
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}
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/* Save information */
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Irp->IoStatus.Information = Iosb.Information;
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/* Unlock VCB */
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FatReleaseVcb(IrpContext, Vcb);
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/* Complete the request */
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FatCompleteRequest(IrpContext, Irp, Iosb.Status);
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return Iosb.Status;
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}
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else
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{
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/* Queue this IRP */
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UNIMPLEMENTED;
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ASSERT(FALSE);
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}
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}
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else
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{
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/* Unexpected FCB type */
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KeBugCheckEx(/*FAT_FILE_SYSTEM*/0x23, __LINE__, (ULONG_PTR)Fcb, 0, 0);
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}
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}
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/* During parsing we encountered a part which has no attached FCB/DCB.
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Check that the parent is really DCB and not FCB */
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if (FatNodeType(Fcb) != FAT_NTC_ROOT_DCB &&
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FatNodeType(Fcb) != FAT_NTC_DCB)
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{
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DPRINT1("Weird FCB node type %x, expected DCB or root DCB\n", FatNodeType(Fcb));
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ASSERT(FALSE);
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}
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/* Create additional DCBs for all path items */
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ParentDcb = Fcb;
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while (TRUE)
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{
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FsRtlDissectName(RemainingPart, &FirstName, &RemainingPart);
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FsRtlDissectName(RemainingPart, &FirstName, &NextName);
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/* Check for validity */
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if ((RemainingPart.Length && RemainingPart.Buffer[0] == L'\\') ||
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if ((NextName.Length && NextName.Buffer[0] == L'\\') ||
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(NextName.Length > 255 * sizeof(WCHAR)))
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{
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/* The name is invalid */
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@ -877,64 +662,109 @@ FatiCreate(IN PFAT_IRP_CONTEXT IrpContext,
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("RtlUpcaseUnicodeStringToCountedOemString() failed with 0x%08x\n", Status);
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ASSERT(FALSE);
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NextFcb = NULL;
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AnsiFirstName.Length = 0;
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}
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else
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{
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/* Find the coresponding FCB */
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NextFcb = FatFindFcb(IrpContext,
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&Fcb->Dcb.SplayLinksAnsi,
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(PSTRING)&AnsiFirstName,
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&OpenedAsDos);
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}
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DPRINT("FirstName %wZ, RemainingPart %wZ\n", &FirstName, &RemainingPart);
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/* If nothing found - try with unicode */
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if (!NextFcb && Fcb->Dcb.SplayLinksUnicode)
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{
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FileNameUpcased.Buffer = FsRtlAllocatePool(PagedPool, FirstName.Length);
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FileNameUpcased.Length = 0;
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FileNameUpcased.MaximumLength = FirstName.Length;
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/* Break if came to the end */
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if (!RemainingPart.Length) break;
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/* Downcase and then upcase to normalize it */
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Status = RtlDowncaseUnicodeString(&FileNameUpcased, &FirstName, FALSE);
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Status = RtlUpcaseUnicodeString(&FileNameUpcased, &FileNameUpcased, FALSE);
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/* Create a DCB for this entry */
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ParentDcb = FatCreateDcb(IrpContext,
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Vcb,
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ParentDcb,
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NULL);
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/* Try to find FCB again using unicode name */
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NextFcb = FatFindFcb(IrpContext,
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&Fcb->Dcb.SplayLinksUnicode,
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(PSTRING)&FileNameUpcased,
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&OpenedAsDos);
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}
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/* Set its name */
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FatSetFullNameInFcb(ParentDcb, &FirstName);
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/* Move to the next FCB */
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if (NextFcb)
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{
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Fcb = NextFcb;
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RemainingPart = NextName;
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}
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/* Break out of this loop if nothing can be found */
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if (!NextFcb ||
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NextName.Length == 0 ||
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FatNodeType(NextFcb) == FAT_NTC_FCB)
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{
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break;
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}
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}
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/* Try to open it and get a result, saying if this is a dir or a file */
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FfError = FatiTryToOpen(FileObject, Vcb);
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/* Ensure remaining name doesn't start from a backslash */
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if (RemainingPart.Length &&
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RemainingPart.Buffer[0] == L'\\')
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{
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/* Cut it */
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RemainingPart.Buffer++;
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RemainingPart.Length -= sizeof(WCHAR);
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}
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/* Check if we need to open target directory */
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if (Fcb->Condition == FcbGood)
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{
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/* Good FCB, break out of the loop */
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break;
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}
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else
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{
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ASSERT(FALSE);
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}
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}
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/* We have a valid FCB now */
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if (!RemainingPart.Length)
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{
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/* Check for target dir open */
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if (OpenTargetDirectory)
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{
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// TODO: Open target directory
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UNIMPLEMENTED;
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DPRINT1("Opening target dir is missing\n");
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ASSERT(FALSE);
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}
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/* Check, if path is a directory or a file */
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if (FfError == FF_ERR_FILE_OBJECT_IS_A_DIR)
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/* Check this FCB's type */
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if (FatNodeType(Fcb) == FAT_NTC_ROOT_DCB ||
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FatNodeType(Fcb) == FAT_NTC_DCB)
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{
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/* Open a directory */
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if (NonDirectoryFile)
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{
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DPRINT1("Can't open dir as a file\n");
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/* Unlock VCB */
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FatReleaseVcb(IrpContext, Vcb);
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/* Complete the request */
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/* Forbidden */
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Iosb.Status = STATUS_FILE_IS_A_DIRECTORY;
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FatCompleteRequest(IrpContext, Irp, Iosb.Status);
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ASSERT(FALSE);
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return Iosb.Status;
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}
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/* Open this directory */
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Iosb = FatiOpenExistingDir(IrpContext,
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/* Open existing DCB */
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Iosb = FatiOpenExistingDcb(IrpContext,
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FileObject,
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Vcb,
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ParentDcb,
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Fcb,
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DesiredAccess,
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ShareAccess,
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AllocationSize,
|
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EaBuffer,
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EaLength,
|
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FileAttributes,
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CreateDisposition,
|
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NoEaKnowledge,
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DeleteOnClose);
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/* Save information */
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Irp->IoStatus.Information = Iosb.Information;
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/* Unlock VCB */
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@ -945,39 +775,209 @@ FatiCreate(IN PFAT_IRP_CONTEXT IrpContext,
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return Iosb.Status;
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}
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/* If end backslash here, then it's definately not permitted,
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since we're opening files here */
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if (EndBackslash)
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else if (FatNodeType(Fcb) == FAT_NTC_FCB)
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{
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/* Open a file */
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if (OpenDirectory)
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{
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/* Forbidden */
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Iosb.Status = STATUS_NOT_A_DIRECTORY;
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ASSERT(FALSE);
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return Iosb.Status;
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}
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/* Check for trailing backslash */
|
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if (EndBackslash)
|
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{
|
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/* Forbidden */
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Iosb.Status = STATUS_OBJECT_NAME_INVALID;
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ASSERT(FALSE);
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return Iosb.Status;
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}
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Iosb = FatiOpenExistingFcb(IrpContext,
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FileObject,
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Vcb,
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Fcb,
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DesiredAccess,
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ShareAccess,
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AllocationSize,
|
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EaBuffer,
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EaLength,
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FileAttributes,
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CreateDisposition,
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NoEaKnowledge,
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DeleteOnClose,
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OpenedAsDos,
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&OplockPostIrp);
|
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|
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/* Check if it's pending */
|
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if (Iosb.Status != STATUS_PENDING)
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{
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/* In case of success set cache supported flag */
|
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if (NT_SUCCESS(Iosb.Status) && !NoIntermediateBuffering)
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{
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SetFlag(FileObject->Flags, FO_CACHE_SUPPORTED);
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}
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/* Save information */
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Irp->IoStatus.Information = Iosb.Information;
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/* Unlock VCB */
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FatReleaseVcb(IrpContext, Vcb);
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/* Complete the request */
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FatCompleteRequest(IrpContext, Irp, Iosb.Status);
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return Iosb.Status;
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}
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else
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{
|
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/* Queue this IRP */
|
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UNIMPLEMENTED;
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ASSERT(FALSE);
|
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}
|
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}
|
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else
|
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{
|
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/* Unexpected FCB type */
|
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KeBugCheckEx(/*FAT_FILE_SYSTEM*/0x23, __LINE__, (ULONG_PTR)Fcb, 0, 0);
|
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}
|
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}
|
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|
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/* During parsing we encountered a part which has no attached FCB/DCB.
|
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Check that the parent is really DCB and not FCB */
|
||||
if (FatNodeType(Fcb) != FAT_NTC_ROOT_DCB &&
|
||||
FatNodeType(Fcb) != FAT_NTC_DCB)
|
||||
{
|
||||
DPRINT1("Weird FCB node type %x, expected DCB or root DCB\n", FatNodeType(Fcb));
|
||||
ASSERT(FALSE);
|
||||
}
|
||||
|
||||
/* Create additional DCBs for all path items */
|
||||
ParentDcb = Fcb;
|
||||
while (TRUE)
|
||||
{
|
||||
FsRtlDissectName(RemainingPart, &FirstName, &RemainingPart);
|
||||
|
||||
/* Check for validity */
|
||||
if ((RemainingPart.Length && RemainingPart.Buffer[0] == L'\\') ||
|
||||
(NextName.Length > 255 * sizeof(WCHAR)))
|
||||
{
|
||||
/* The name is invalid */
|
||||
DPRINT1("Invalid name found\n");
|
||||
Iosb.Status = STATUS_OBJECT_NAME_INVALID;
|
||||
ASSERT(FALSE);
|
||||
}
|
||||
|
||||
/* Convert the name to ANSI */
|
||||
AnsiFirstName.Buffer = ExAllocatePool(PagedPool, FirstName.Length);
|
||||
AnsiFirstName.Length = 0;
|
||||
AnsiFirstName.MaximumLength = FirstName.Length;
|
||||
Status = RtlUpcaseUnicodeStringToCountedOemString(&AnsiFirstName, &FirstName, FALSE);
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
ASSERT(FALSE);
|
||||
}
|
||||
|
||||
DPRINT("FirstName %wZ, RemainingPart %wZ\n", &FirstName, &RemainingPart);
|
||||
|
||||
/* Break if came to the end */
|
||||
if (!RemainingPart.Length) break;
|
||||
|
||||
/* Create a DCB for this entry */
|
||||
ParentDcb = FatCreateDcb(IrpContext,
|
||||
Vcb,
|
||||
ParentDcb,
|
||||
NULL);
|
||||
|
||||
/* Set its name */
|
||||
FatSetFullNameInFcb(ParentDcb, &FirstName);
|
||||
}
|
||||
|
||||
/* Try to open it and get a result, saying if this is a dir or a file */
|
||||
FfError = FatiTryToOpen(FileObject, Vcb);
|
||||
|
||||
/* Check if we need to open target directory */
|
||||
if (OpenTargetDirectory)
|
||||
{
|
||||
// TODO: Open target directory
|
||||
UNIMPLEMENTED;
|
||||
}
|
||||
|
||||
/* Check, if path is a directory or a file */
|
||||
if (FfError == FF_ERR_FILE_OBJECT_IS_A_DIR)
|
||||
{
|
||||
if (NonDirectoryFile)
|
||||
{
|
||||
DPRINT1("Can't open dir as a file\n");
|
||||
|
||||
/* Unlock VCB */
|
||||
FatReleaseVcb(IrpContext, Vcb);
|
||||
|
||||
/* Complete the request */
|
||||
Iosb.Status = STATUS_OBJECT_NAME_INVALID;
|
||||
Iosb.Status = STATUS_FILE_IS_A_DIRECTORY;
|
||||
FatCompleteRequest(IrpContext, Irp, Iosb.Status);
|
||||
return Iosb.Status;
|
||||
}
|
||||
|
||||
/* Try to open the file */
|
||||
Iosb = FatiOpenExistingFile(IrpContext,
|
||||
FileObject,
|
||||
Vcb,
|
||||
ParentDcb,
|
||||
DesiredAccess,
|
||||
ShareAccess,
|
||||
AllocationSize,
|
||||
EaBuffer,
|
||||
EaLength,
|
||||
FileAttributes,
|
||||
CreateDisposition,
|
||||
FALSE,
|
||||
DeleteOnClose,
|
||||
OpenedAsDos);
|
||||
/* Open this directory */
|
||||
Iosb = FatiOpenExistingDir(IrpContext,
|
||||
FileObject,
|
||||
Vcb,
|
||||
ParentDcb,
|
||||
DesiredAccess,
|
||||
ShareAccess,
|
||||
AllocationSize,
|
||||
EaBuffer,
|
||||
EaLength,
|
||||
FileAttributes,
|
||||
CreateDisposition,
|
||||
DeleteOnClose);
|
||||
|
||||
Irp->IoStatus.Information = Iosb.Information;
|
||||
|
||||
/* Unlock VCB */
|
||||
FatReleaseVcb(IrpContext, Vcb);
|
||||
|
||||
/* Complete the request */
|
||||
FatCompleteRequest(IrpContext, Irp, Iosb.Status);
|
||||
|
||||
return Iosb.Status;
|
||||
}
|
||||
|
||||
/* If end backslash here, then it's definately not permitted,
|
||||
since we're opening files here */
|
||||
if (EndBackslash)
|
||||
{
|
||||
/* Unlock VCB */
|
||||
FatReleaseVcb(IrpContext, Vcb);
|
||||
|
||||
/* Complete the request */
|
||||
Iosb.Status = STATUS_OBJECT_NAME_INVALID;
|
||||
FatCompleteRequest(IrpContext, Irp, Iosb.Status);
|
||||
return Iosb.Status;
|
||||
}
|
||||
|
||||
/* Try to open the file */
|
||||
Iosb = FatiOpenExistingFile(IrpContext,
|
||||
FileObject,
|
||||
Vcb,
|
||||
ParentDcb,
|
||||
DesiredAccess,
|
||||
ShareAccess,
|
||||
AllocationSize,
|
||||
EaBuffer,
|
||||
EaLength,
|
||||
FileAttributes,
|
||||
CreateDisposition,
|
||||
FALSE,
|
||||
DeleteOnClose,
|
||||
OpenedAsDos);
|
||||
|
||||
Irp->IoStatus.Information = Iosb.Information;
|
||||
|
||||
/* Unlock VCB */
|
||||
FatReleaseVcb(IrpContext, Vcb);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue