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sys: IRP_MJ_CREATE

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This commit is contained in:
Bill Zissimopoulos
2015-12-03 16:59:31 -08:00
parent 3a3df24a40
commit ca8a02bd9d
4 changed files with 91 additions and 22 deletions
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34
src/sys/create.c
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@ -57,17 +57,17 @@ static NTSTATUS FspFsvolCreate(
PFILE_OBJECT RelatedFileObject = FileObject->RelatedFileObject;
UNICODE_STRING FileName = FileObject->FileName;
ULONG Flags = IrpSp->Flags;
//KPROCESSOR_MODE RequestorMode = FlagOn(Flags, SL_FORCE_ACCESS_CHECK) ? UserMode : Irp->RequestorMode;
//PACCESS_STATE AccessState = IrpSp->Parameters.Create.SecurityContext->AccessState;
//ACCESS_MASK DesiredAccess = IrpSp->Parameters.Create.SecurityContext->DesiredAccess;
//USHORT ShareAccess = IrpSp->Parameters.Create.ShareAccess;
//ULONG CreateDisposition = (IrpSp->Parameters.Create.Options >> 24) & 0xff;
KPROCESSOR_MODE RequestorMode = FlagOn(Flags, SL_FORCE_ACCESS_CHECK) ? UserMode : Irp->RequestorMode;
PACCESS_STATE AccessState = IrpSp->Parameters.Create.SecurityContext->AccessState;
ACCESS_MASK DesiredAccess = IrpSp->Parameters.Create.SecurityContext->DesiredAccess;
USHORT ShareAccess = IrpSp->Parameters.Create.ShareAccess;
ULONG CreateDisposition = (IrpSp->Parameters.Create.Options >> 24) & 0xff;
ULONG CreateOptions = IrpSp->Parameters.Create.Options & 0xffffff;
//USHORT FileAttributes = IrpSp->Parameters.Create.FileAttributes;
//LARGE_INTEGER AllocationSize = Irp->Overlay.AllocationSize;
USHORT FileAttributes = IrpSp->Parameters.Create.FileAttributes;
LARGE_INTEGER AllocationSize = Irp->Overlay.AllocationSize;
PFILE_FULL_EA_INFORMATION EaBuffer = Irp->AssociatedIrp.SystemBuffer;
//ULONG EaLength = IrpSp->Parameters.Create.EaLength;
//BOOLEAN HasTraversePrivilege = BooleanFlagOn(AccessState->Flags, TOKEN_HAS_TRAVERSE_PRIVILEGE);
BOOLEAN HasTraversePrivilege = BooleanFlagOn(AccessState->Flags, TOKEN_HAS_TRAVERSE_PRIVILEGE);
BOOLEAN HasTrailingBackslash = FALSE;
FSP_FILE_CONTEXT *FsContext = 0;
FSP_FSCTL_TRANSACT_REQ *Request;
@ -173,7 +173,23 @@ static NTSTATUS FspFsvolCreate(
return Result;
}
/* !!!: populate the request */
/* populate the Create request */
Request->Kind = FspFsctlTransactCreateKind;
Request->Req.Create.CreateDisposition = CreateDisposition;
Request->Req.Create.CreateOptions = CreateOptions;
Request->Req.Create.FileAttributes = FileAttributes;
Request->Req.Create.AllocationSize = AllocationSize.QuadPart;
Request->Req.Create.SecurityDescriptor = 0;
Request->Req.Create.EaBuffer = 0;
Request->Req.Create.EaLength = 0;
Request->Req.Create.AccessToken = 0;
Request->Req.Create.DesiredAccess = DesiredAccess;
Request->Req.Create.ShareAccess = ShareAccess;
Request->Req.Create.DesiredAccess = DesiredAccess;
Request->Req.Create.UserMode = UserMode == RequestorMode;
Request->Req.Create.HasTraversePrivilege = HasTraversePrivilege;
Request->Req.Create.CaseSensitive = BooleanFlagOn(Flags, SL_CASE_SENSITIVE);
Request->Req.Create.OpenTargetDirectory = BooleanFlagOn(Flags, SL_OPEN_TARGET_DIRECTORY);
/*
* Post the IRP to our Ioq; we do this here instead of at FSP_LEAVE_MJ time,

2
src/sys/fileobj.c
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@ -38,7 +38,7 @@ NTSTATUS FspFileContextCreate(ULONG ExtraSize, FSP_FILE_CONTEXT **PFsContext)
ExInitializeResourceLite(&NonPaged->PagingIoResource);
ExInitializeFastMutex(&NonPaged->HeaderFastMutex);
RtlZeroMemory(FsContext, sizeof *FsContext);
RtlZeroMemory(FsContext, sizeof *FsContext + ExtraSize);
FsContext->Header.NodeTypeCode = 'F';
FsContext->Header.NodeByteSize = sizeof *FsContext;
FsContext->Header.IsFastIoPossible = FastIoIsQuestionable;

2
src/sys/iop.c
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@ -30,7 +30,7 @@ NTSTATUS FspIopCreateRequest(
if (0 == Request)
return STATUS_INSUFFICIENT_RESOURCES;
RtlZeroMemory(Request, sizeof *Request);
RtlZeroMemory(Request, sizeof *Request + ExtraSize);
Request->Size = (UINT16)(sizeof *Request + ExtraSize);
Request->Hint = (UINT_PTR)Irp;
if (0 != FileName)