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dll: fuseintf: SetAllocationSize, SetFileSize

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This commit is contained in:
Bill Zissimopoulos 2016-06-10 22:59:28 -07:00
parent 32912b587f
commit 8a37cb9c36
1 changed files with 62 additions and 2 deletions
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64
src/dll/fuse/fuseintf.c
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@ -802,12 +802,71 @@ static NTSTATUS fsp_fuse_intf_SetBasicInfo(FSP_FILE_SYSTEM *FileSystem,
return STATUS_SUCCESS; return STATUS_SUCCESS;
} }
static NTSTATUS fsp_fuse_intf_SetFileSizeCommon(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode, UINT64 NewFileSize, BOOLEAN OnlyIfTruncate,
FSP_FSCTL_FILE_INFO *FileInfo)
{
struct fuse *f = FileSystem->UserContext;
struct fsp_fuse_file_desc *filedesc =
(PVOID)(UINT_PTR)Request->Req.SetInformation.UserContext2;
UINT32 Uid, Gid, Mode;
struct fuse_file_info fi;
FSP_FSCTL_FILE_INFO FileInfoBuf;
UINT64 AllocationUnit;
int err;
NTSTATUS Result;
if (0 == f->ops.ftruncate && 0 == f->ops.truncate)
return STATUS_INVALID_DEVICE_REQUEST;
memset(&fi, 0, sizeof fi);
fi.flags = filedesc->OpenFlags;
fi.fh = filedesc->FileHandle;
Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
&Uid, &Gid, &Mode, &FileInfoBuf);
if (!NT_SUCCESS(Result))
return Result;
if (!OnlyIfTruncate || FileInfoBuf.FileSize > NewFileSize)
{
/*
* OnlyIfTruncate explanation:
* FUSE 2.8 does not support allocation size. However if the new AllocationSize
* is less than the current FileSize we must truncate the file.
*/
if (0 == f->ops.ftruncate)
{
err = f->ops.ftruncate(filedesc->PosixPath, NewFileSize, &fi);
Result = fsp_fuse_ntstatus_from_errno(f->env, err);
}
else
{
err = f->ops.truncate(filedesc->PosixPath, NewFileSize);
Result = fsp_fuse_ntstatus_from_errno(f->env, err);
}
if (!NT_SUCCESS(Result))
return Result;
AllocationUnit = f->VolumeParams.SectorSize * f->VolumeParams.SectorsPerAllocationUnit;
FileInfo->AllocationSize =
(NewFileSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit;
FileInfoBuf.FileSize = NewFileSize;
}
memcpy(FileInfo, &FileInfoBuf, sizeof FileInfoBuf);
return STATUS_SUCCESS;
}
static NTSTATUS fsp_fuse_intf_SetAllocationSize(FSP_FILE_SYSTEM *FileSystem, static NTSTATUS fsp_fuse_intf_SetAllocationSize(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode, UINT64 AllocationSize, PVOID FileNode, UINT64 AllocationSize,
FSP_FSCTL_FILE_INFO *FileInfo) FSP_FSCTL_FILE_INFO *FileInfo)
{ {
return STATUS_INVALID_DEVICE_REQUEST; return fsp_fuse_intf_SetFileSizeCommon(FileSystem, Request, FileNode, AllocationSize, TRUE,
FileInfo);
} }
static NTSTATUS fsp_fuse_intf_SetFileSize(FSP_FILE_SYSTEM *FileSystem, static NTSTATUS fsp_fuse_intf_SetFileSize(FSP_FILE_SYSTEM *FileSystem,
@ -815,7 +874,8 @@ static NTSTATUS fsp_fuse_intf_SetFileSize(FSP_FILE_SYSTEM *FileSystem,
PVOID FileNode, UINT64 FileSize, PVOID FileNode, UINT64 FileSize,
FSP_FSCTL_FILE_INFO *FileInfo) FSP_FSCTL_FILE_INFO *FileInfo)
{ {
return STATUS_INVALID_DEVICE_REQUEST; return fsp_fuse_intf_SetFileSizeCommon(FileSystem, Request, FileNode, FileSize, FALSE,
FileInfo);
} }
static int fsp_fuse_intf_CanDeleteAddDirInfo(void *buf, const char *name, static int fsp_fuse_intf_CanDeleteAddDirInfo(void *buf, const char *name,