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sys: IRP_MJ_SET_VOLUME_INFORMATION/FileFsLabelInformation

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This commit is contained in:
Bill Zissimopoulos
2016-02-17 10:27:09 -08:00
parent 003e9a6d91
commit 49cf687de3
7 changed files with 272 additions and 10 deletions
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36
tst/winfsp-tests/memfs.cpp
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@@ -51,6 +51,8 @@ typedef struct _MEMFS
MEMFS_FILE_NODE_MAP *FileNodeMap;
ULONG MaxFileNodes;
ULONG MaxFileSize;
UINT16 VolumeLabelLength;
WCHAR VolumeLabel[32];
CRITICAL_SECTION Lock;
} MEMFS;
@@ -196,17 +198,33 @@ static NTSTATUS GetVolumeInfo(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_VOLUME_INFO *VolumeInfo)
{
MEMFS *Memfs = (MEMFS *)FileSystem->UserContext;
MEMFS_FILE_NODE *RootNode;
RootNode = MemfsFileNodeMapGet(Memfs->FileNodeMap, L"\\");
if (0 == RootNode)
return STATUS_DISK_CORRUPT_ERROR;
VolumeInfo->TotalSize = Memfs->MaxFileNodes * Memfs->MaxFileSize;
VolumeInfo->FreeSize =
(Memfs->MaxFileNodes - MemfsFileNodeMapCount(Memfs->FileNodeMap)) * Memfs->MaxFileSize;
VolumeInfo->VolumeLabelLength = sizeof L"MEMFS" - sizeof(WCHAR);
memcpy(VolumeInfo->VolumeLabel, L"MEMFS", VolumeInfo->VolumeLabelLength);
VolumeInfo->VolumeLabelLength = Memfs->VolumeLabelLength;
memcpy(VolumeInfo->VolumeLabel, Memfs->VolumeLabel, Memfs->VolumeLabelLength);
return STATUS_SUCCESS;
}
static NTSTATUS SetVolumeLabel(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
PWSTR VolumeLabel,
FSP_FSCTL_VOLUME_INFO *VolumeInfo)
{
MEMFS *Memfs = (MEMFS *)FileSystem->UserContext;
Memfs->VolumeLabelLength = (UINT16)(wcslen(VolumeLabel) * sizeof(WCHAR));
if (Memfs->VolumeLabelLength > sizeof Memfs->VolumeLabel)
Memfs->VolumeLabelLength = sizeof Memfs->VolumeLabel;
memcpy(Memfs->VolumeLabel, VolumeLabel, Memfs->VolumeLabelLength);
VolumeInfo->TotalSize = Memfs->MaxFileNodes * Memfs->MaxFileSize;
VolumeInfo->FreeSize =
(Memfs->MaxFileNodes - MemfsFileNodeMapCount(Memfs->FileNodeMap)) * Memfs->MaxFileSize;
VolumeInfo->VolumeLabelLength = Memfs->VolumeLabelLength;
memcpy(VolumeInfo->VolumeLabel, Memfs->VolumeLabel, Memfs->VolumeLabelLength);
return STATUS_SUCCESS;
}
@@ -538,6 +556,7 @@ NTSTATUS Rename(FSP_FILE_SYSTEM *FileSystem,
static FSP_FILE_SYSTEM_INTERFACE MemfsInterface =
{
GetVolumeInfo,
SetVolumeLabel,
GetSecurity,
Create,
Open,
@@ -616,7 +635,10 @@ NTSTATUS MemfsCreate(ULONG Flags, ULONG FileInfoTimeout,
free(Memfs);
return Result;
}
Memfs->FileSystem->UserContext = Memfs;
Memfs->VolumeLabelLength = sizeof L"MEMFS" - sizeof(WCHAR);
memcpy(Memfs->VolumeLabel, L"MEMFS", Memfs->VolumeLabelLength);
InitializeCriticalSection(&Memfs->Lock);