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FltGetFileNameInformation on MailSlot
MariushZdrabazdanski
Member Posts: 8
in NTFSD
Hi, I'm trying to apply FltGetFileNameInformation when opening MailSlot, as a result I get STATUS_OBJECT_NAME_INVALID
Can you tell me what it may be related to?
This code works with NamedPipe
PFLT_FILE_NAME_INFORMATION NameInformation;
status = FltGetFileNameInformation(
Data,
FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT,
&NameInformation);
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Comments
In user space app call
DesiredAccess = 0x80140000 ObjectAttributes.RootDirectory = NULL ObjectAttributes.ObjectName = {Length=0x0024 MaximumLength=0x0026 Buffer=0x090b39c0 L"\\??\\mailslot\\Lilo1" } _UNICODE_STRING * CreateOptions = FILE_WRITE_THROUGH MailslotQuota = 0 MaxMessageSize = 0 ReadTimeOut = 0xffffffff NtCreateMailslotFile( MailslotFileHandle, DesiredAccess, ObjectAttributes, IoStatusBlock, CreateOptions, MailslotQuota, MaxMessageSize, ReadTimeOut);Okey, I solved wthis
MailSlots unsupport FLT_FILE_NAME_NORMALIZED
It is written about this here https://community.osr.com/discussion/71813/re-fltgetfilenameinformation-returns-invalid-device-request-for-named
PFLT_FILE_NAME_INFORMATION NameInformation;
status = FltGetFileNameInformation( Data, FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT, &NameInformation); // test if mailslot // mailslots unsupport FLT_FILE_NAME_NORMALIZED if (!NT_SUCCESS(status)) { status = FltGetFileNameInformation( Data, FLT_FILE_NAME_OPENED | FLT_FILE_NAME_QUERY_DEFAULT, &NameInformation); }Admin, can you close discussion?