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sys: IRP_MJ_CREATE

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This commit is contained in:
Bill Zissimopoulos
2015-12-05 13:10:45 -08:00
parent 684a594385
commit 1f0942a100
2 changed files with 42 additions and 11 deletions
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37
src/sys/create.c
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@ -241,12 +241,14 @@ static NTSTATUS FspFsvolCreate(
/* populate the Create request */
Request->Kind = FspFsctlTransactCreateKind;
Request->FileName.Offset = 0;
Request->FileName.Size = FsContext->FileName.Length + sizeof(WCHAR);
Request->Req.Create.CreateDisposition = CreateDisposition;
Request->Req.Create.CreateOptions = CreateOptions;
Request->Req.Create.FileAttributes = FileAttributes;
Request->Req.Create.SecurityDescriptor = 0 == SecurityDescriptor ? 0 :
FSP_FSCTL_DEFAULT_ALIGN_UP(FsContext->FileName.Length + sizeof(WCHAR));
Request->Req.Create.SecurityDescriptorSize = (UINT16)SecurityDescriptorSize;
Request->Req.Create.SecurityDescriptor.Offset = 0 == SecurityDescriptorSize ? 0 :
FSP_FSCTL_DEFAULT_ALIGN_UP(Request->FileName.Size);
Request->Req.Create.SecurityDescriptor.Size = (UINT16)SecurityDescriptorSize;
Request->Req.Create.AllocationSize = AllocationSize.QuadPart;
Request->Req.Create.AccessToken = 0;
Request->Req.Create.DesiredAccess = DesiredAccess;
@ -262,7 +264,7 @@ static NTSTATUS FspFsvolCreate(
if (IsAbsoluteSecurityDescriptor)
{
Result = RtlAbsoluteToSelfRelativeSD(SecurityDescriptor,
Request->Buffer + Request->Req.Create.SecurityDescriptor, &SecurityDescriptorSize);
Request->Buffer + Request->Req.Create.SecurityDescriptor.Offset, &SecurityDescriptorSize);
if (!NT_SUCCESS(Result))
{
FspFileContextDelete(FsContext);
@ -272,7 +274,7 @@ static NTSTATUS FspFsvolCreate(
}
}
else if (IsSelfRelativeSecurityDescriptor)
RtlCopyMemory(Request->Buffer + Request->Req.Create.SecurityDescriptor,
RtlCopyMemory(Request->Buffer + Request->Req.Create.SecurityDescriptor.Offset,
SecurityDescriptor, SecurityDescriptorSize);
/*
@ -351,8 +353,8 @@ VOID FspFsvolCreateComplete(
PFILE_OBJECT FileObject = IrpSp->FileObject;
PACCESS_STATE AccessState = IrpSp->Parameters.Create.SecurityContext->AccessState;
PSECURITY_DESCRIPTOR SecurityDescriptor =
(PVOID)(Response->Buffer + Response->Rsp.Create.SecurityDescriptor);
ULONG SecurityDescriptorSize = Response->Rsp.Create.SecurityDescriptorSize;
(PVOID)(Response->Buffer + Response->Rsp.Create.Buf.SecurityDescriptor.Offset);
ULONG SecurityDescriptorSize = Response->Rsp.Create.Buf.SecurityDescriptor.Size;
ACCESS_MASK DesiredAccess = IrpSp->Parameters.Create.SecurityContext->DesiredAccess;
USHORT ShareAccess = IrpSp->Parameters.Create.ShareAccess;
ULONG Flags = IrpSp->Flags;
@ -367,6 +369,27 @@ VOID FspFsvolCreateComplete(
{
FspFileContextDelete(FileObject->FsContext);
FileObject->FsContext = 0;
Irp->IoStatus.Information = Response->IoStatus.Information;
Result = Response->IoStatus.Status;
FSP_RETURN();
}
/* special case STATUS_REPARSE */
if (STATUS_REPARSE == Result)
{
if (IO_REPARSE != Response->IoStatus.Information &&
IO_REMOUNT != Response->IoStatus.Information)
{
FspFileContextDelete(FileObject->FsContext);
FileObject->FsContext = 0;
FSP_RETURN(Result = STATUS_ACCESS_DENIED);
}
if (IO_REPARSE != Response->IoStatus.Information)
{
}
Irp->IoStatus.Information = Response->IoStatus.Information;
Result = Response->IoStatus.Status;
FSP_RETURN();