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tst: passthrough: use FspFileSystem*DirectoryBuffer API's

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This commit is contained in:
Bill Zissimopoulos
2017-01-26 16:39:06 -08:00
parent 55a7864173
commit 7288605f65
1 changed files with 16 additions and 44 deletions
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60
tst/passthrough/passthrough.c
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@@ -39,7 +39,6 @@ typedef struct
{
HANDLE Handle;
PVOID DirBuffer;
ULONG DirBufferCapacity, DirBufferLength;
} PTFS_FILE_CONTEXT;
static NTSTATUS GetFileInfoInternal(HANDLE Handle, FSP_FSCTL_FILE_INFO *FileInfo)
@@ -299,13 +298,14 @@ static VOID Cleanup(FSP_FILE_SYSTEM *FileSystem,
}
static VOID Close(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext)
PVOID FileContext0)
{
PTFS_FILE_CONTEXT *FileContext = FileContext0;
HANDLE Handle = HandleFromContext(FileContext);
CloseHandle(Handle);
free(((PTFS_FILE_CONTEXT *)FileContext)->DirBuffer);
FspFileSystemDeleteDirectoryBuffer(&FileContext->DirBuffer);
free(FileContext);
}
@@ -510,29 +510,9 @@ static NTSTATUS SetSecurity(FSP_FILE_SYSTEM *FileSystem,
return STATUS_SUCCESS;
}
static BOOLEAN AddDirInfo(PTFS_FILE_CONTEXT *FileContext, FSP_FSCTL_DIR_INFO *DirInfo)
{
while (!FspFileSystemAddDirInfo(DirInfo,
FileContext->DirBuffer, FileContext->DirBufferCapacity, &FileContext->DirBufferLength))
{
PVOID Buffer;
ULONG Capacity = FileContext->DirBufferCapacity ? FileContext->DirBufferCapacity * 2 : 256;
Buffer = realloc(FileContext->DirBuffer, Capacity);
if (0 == Buffer)
return FALSE;
FileContext->DirBuffer = Buffer;
FileContext->DirBufferCapacity = Capacity;
}
return TRUE;
}
static NTSTATUS ReadDirectory(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext0, PVOID Buffer, UINT64 Offset, ULONG BufferLength,
PWSTR Pattern,
PULONG PBytesTransferred)
PVOID FileContext0, PWSTR Pattern, PWSTR Marker,
PVOID Buffer, ULONG BufferLength, PULONG PBytesTransferred)
{
PTFS *Ptfs = (PTFS *)FileSystem->UserContext;
PTFS_FILE_CONTEXT *FileContext = FileContext0;
@@ -547,9 +527,10 @@ static NTSTATUS ReadDirectory(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_DIR_INFO D;
} DirInfoBuf;
FSP_FSCTL_DIR_INFO *DirInfo = &DirInfoBuf.D;
UINT64 NextOffset = 0;
NTSTATUS DirBufferResult;
if (0 == Offset)
DirBufferResult = STATUS_SUCCESS;
if (FspFileSystemAcquireDirectoryBuffer(&FileContext->DirBuffer, 0 == Marker, &DirBufferResult))
{
if (0 == Pattern)
Pattern = L"*";
@@ -586,33 +567,24 @@ static NTSTATUS ReadDirectory(FSP_FILE_SYSTEM *FileSystem,
DirInfo->FileInfo.ChangeTime = DirInfo->FileInfo.LastWriteTime;
DirInfo->FileInfo.IndexNumber = 0;
DirInfo->FileInfo.HardLinks = 0;
DirInfo->NextOffset = (NextOffset += FSP_FSCTL_DEFAULT_ALIGN_UP(DirInfo->Size));
memcpy(DirInfo->FileNameBuf, FindData.cFileName, Length * sizeof(WCHAR));
if (!AddDirInfo(FileContext, DirInfo))
if (!FspFileSystemFillDirectoryBuffer(&FileContext->DirBuffer, DirInfo, &DirBufferResult))
break;
} while (FindNextFileW(FindHandle, &FindData));
FindClose(FindHandle);
if (!AddDirInfo(FileContext, 0))
return STATUS_INSUFFICIENT_RESOURCES;
}
FspFileSystemReleaseDirectoryBuffer(&FileContext->DirBuffer);
}
if (0 != FileContext->DirBuffer)
{
for (DirInfo = (PVOID)((PUINT8)FileContext->DirBuffer + Offset);
0 != DirInfo->Size;
DirInfo = (PVOID)((PUINT8)DirInfo + FSP_FSCTL_DEFAULT_ALIGN_UP(DirInfo->Size)))
{
if (!FspFileSystemAddDirInfo(DirInfo, Buffer, BufferLength, PBytesTransferred))
return STATUS_SUCCESS;
}
}
if (!NT_SUCCESS(DirBufferResult))
return DirBufferResult;
FspFileSystemReadDirectoryBuffer(&FileContext->DirBuffer,
Marker, Buffer, BufferLength, PBytesTransferred);
/* add "End-Of-Listing" marker */
FspFileSystemAddDirInfo(0, Buffer, BufferLength, PBytesTransferred);
return STATUS_SUCCESS;
}