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sys: IRP_MJ_CREATE

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This commit is contained in:
Bill Zissimopoulos 2015-12-07 12:07:00 -08:00
parent 23b4956488
commit f32db0ed2e
1 changed files with 21 additions and 1 deletions
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22
src/sys/create.c
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@ -116,7 +116,7 @@ static NTSTATUS FspFsvolCreate(
goto exit; goto exit;
} }
/* impossible create options set? */ /* impossible create options sent? */
if (FlagOn(CreateOptions, FILE_NON_DIRECTORY_FILE) && if (FlagOn(CreateOptions, FILE_NON_DIRECTORY_FILE) &&
FlagOn(CreateOptions, FILE_DIRECTORY_FILE)) FlagOn(CreateOptions, FILE_DIRECTORY_FILE))
{ {
@ -247,6 +247,10 @@ static NTSTATUS FspFsvolCreate(
goto exit; goto exit;
} }
/*
* The new request is associated with our IRP and will be deleted during its completion.
*/
/* populate the Create request */ /* populate the Create request */
Request->Kind = FspFsctlTransactCreateKind; Request->Kind = FspFsctlTransactCreateKind;
Request->Req.Create.CreateDisposition = CreateDisposition; Request->Req.Create.CreateDisposition = CreateDisposition;
@ -372,6 +376,8 @@ VOID FspFsvolCreateComplete(
FspFsvrtDeviceExtension(FsvolDeviceExtension->FsvrtDeviceObject); FspFsvrtDeviceExtension(FsvolDeviceExtension->FsvrtDeviceObject);
PFILE_OBJECT FileObject = IrpSp->FileObject; PFILE_OBJECT FileObject = IrpSp->FileObject;
PACCESS_STATE AccessState = IrpSp->Parameters.Create.SecurityContext->AccessState; PACCESS_STATE AccessState = IrpSp->Parameters.Create.SecurityContext->AccessState;
ULONG CreateOptions = IrpSp->Parameters.Create.Options & 0xffffff;
UINT32 ResponseFileAttributes = Response->Rsp.Create.Opened.FileAttributes;
PSECURITY_DESCRIPTOR SecurityDescriptor; PSECURITY_DESCRIPTOR SecurityDescriptor;
ULONG SecurityDescriptorSize; ULONG SecurityDescriptorSize;
UNICODE_STRING ReparseFileName; UNICODE_STRING ReparseFileName;
@ -492,6 +498,20 @@ VOID FspFsvolCreateComplete(
ClearFlag(AccessState->RemainingDesiredAccess, GrantedAccess); ClearFlag(AccessState->RemainingDesiredAccess, GrantedAccess);
} }
/* were we asked to open a directory or non-directory? */
if (FlagOn(CreateOptions, FILE_DIRECTORY_FILE) &&
!FlagOn(ResponseFileAttributes, FILE_ATTRIBUTE_DIRECTORY))
{
FspFsvolCreateClose(Irp, Response);
FSP_RETURN(Result = STATUS_NOT_A_DIRECTORY);
}
if (FlagOn(CreateOptions, FILE_NON_DIRECTORY_FILE) &&
FlagOn(ResponseFileAttributes, FILE_ATTRIBUTE_DIRECTORY))
{
FspFsvolCreateClose(Irp, Response);
FSP_RETURN(Result = STATUS_FILE_IS_A_DIRECTORY);
}
/* record the user-mode file system contexts */ /* record the user-mode file system contexts */
FsContext->UserContext = Response->Rsp.Create.Opened.UserContext; FsContext->UserContext = Response->Rsp.Create.Opened.UserContext;
FileObject->FsContext2 = (PVOID)(UINT_PTR)Response->Rsp.Create.Opened.UserContext2; FileObject->FsContext2 = (PVOID)(UINT_PTR)Response->Rsp.Create.Opened.UserContext2;