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dll: GetDirInfoByName: properly handle marker for kernel cached directories

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This commit is contained in:
Bill Zissimopoulos 2017-09-28 14:05:55 -07:00
parent c70089a176
commit 6430b386da
1 changed files with 7 additions and 2 deletions
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9
src/dll/fsop.c
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@ -1122,7 +1122,7 @@ FSP_API NTSTATUS FspFileSystemOpSetVolumeInformation(FSP_FILE_SYSTEM *FileSystem
}
static NTSTATUS FspFileSystemOpQueryDirectory_GetDirInfoByName(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext, PWSTR FileName, BOOLEAN HasMarker,
PVOID FileContext, PWSTR FileName, PWSTR Marker, BOOLEAN CaseSensitive,
PVOID Buffer, ULONG Length, PULONG PBytesTransferred)
{
NTSTATUS Result;
@ -1132,8 +1132,11 @@ static NTSTATUS FspFileSystemOpQueryDirectory_GetDirInfoByName(FSP_FILE_SYSTEM *
UINT8 B[sizeof(FSP_FSCTL_DIR_INFO) + 255 * sizeof(WCHAR)];
} DirInfoBuf;
FSP_FSCTL_DIR_INFO *DirInfo = &DirInfoBuf.V;
BOOLEAN HasMarker;
memset(DirInfo, 0, sizeof *DirInfo);
HasMarker = 0 != Marker &&
0 == (CaseSensitive ? invariant_wcscmp : invariant_wcsicmp)(FileName, Marker);
if (!HasMarker)
{
@ -1174,7 +1177,9 @@ FSP_API NTSTATUS FspFileSystemOpQueryDirectory(FSP_FILE_SYSTEM *FileSystem,
Result = FspFileSystemOpQueryDirectory_GetDirInfoByName(FileSystem,
(PVOID)ValOfFileContext(Request->Req.QueryDirectory),
(PWSTR)(Request->Buffer + Request->Req.QueryDirectory.Pattern.Offset),
0 != Request->Req.QueryDirectory.Marker.Size,
0 != Request->Req.QueryDirectory.Marker.Size ?
(PWSTR)(Request->Buffer + Request->Req.QueryDirectory.Marker.Offset) : 0,
Request->Req.QueryDirectory.CaseSensitive,
(PVOID)Request->Req.QueryDirectory.Address,
Request->Req.QueryDirectory.Length,
&BytesTransferred);