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sys: FspFsvolQueryFsAttributeInformation: return full file system name

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This commit is contained in:
Bill Zissimopoulos
2016-09-20 16:29:26 -07:00
parent 817beebb63
commit 5798527237
2 changed files with 23 additions and 7 deletions
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22
src/sys/volinfo.c
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@ -79,6 +79,8 @@ static NTSTATUS FspFsvolQueryFsAttributeInformation(
PFILE_FS_ATTRIBUTE_INFORMATION Info = (PFILE_FS_ATTRIBUTE_INFORMATION)*PBuffer;
PUINT8 Buffer = (PUINT8)Info->FileSystemName;
ULONG CopyLength;
UNICODE_STRING FileSystemName;
WCHAR FileSystemNameBuf[16 + FSP_FSCTL_VOLUME_FSNAME_SIZE / sizeof(WCHAR)];
Info->FileSystemAttributes =
(FsvolDeviceExtension->VolumeParams.CaseSensitiveSearch ? FILE_CASE_SENSITIVE_SEARCH : 0) |
@ -91,15 +93,29 @@ static NTSTATUS FspFsvolQueryFsAttributeInformation(
//(FsvolDeviceExtension->VolumeParams.ExtendedAttributes ? FILE_SUPPORTS_EXTENDED_ATTRIBUTES : 0) |
(FsvolDeviceExtension->VolumeParams.ReadOnlyVolume ? FILE_READ_ONLY_VOLUME : 0);
Info->MaximumComponentNameLength = FsvolDeviceExtension->VolumeParams.MaxComponentLength;
Info->FileSystemNameLength = sizeof L"" DRIVER_NAME - sizeof(WCHAR);
CopyLength = Info->FileSystemNameLength;
RtlInitUnicodeString(&FileSystemName, FsvolDeviceExtension->VolumeParams.FileSystemName);
ASSERT(sizeof FileSystemNameBuf >= sizeof L"" DRIVER_NAME + FSP_FSCTL_VOLUME_FSNAME_SIZE);
CopyLength = sizeof L"" DRIVER_NAME - sizeof(WCHAR);
RtlCopyMemory(FileSystemNameBuf, L"" DRIVER_NAME, CopyLength);
if (0 != FileSystemName.Length)
{
FileSystemNameBuf[CopyLength / sizeof(WCHAR)] = L'_';
CopyLength += sizeof(WCHAR);
RtlCopyMemory(FileSystemNameBuf + CopyLength / sizeof(WCHAR), FileSystemName.Buffer,
FileSystemName.Length * sizeof(WCHAR));
CopyLength += FileSystemName.Length * sizeof(WCHAR);
}
Info->FileSystemNameLength = CopyLength;
if (Buffer + CopyLength > BufferEnd)
{
CopyLength = (ULONG)(BufferEnd - Buffer);
Result = STATUS_BUFFER_OVERFLOW;
}
RtlCopyMemory(Buffer, L"" DRIVER_NAME, CopyLength);
RtlCopyMemory(Buffer, FileSystemNameBuf, CopyLength);
Buffer += CopyLength;
*PBuffer = Buffer;