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dll: fuse: getpath

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This commit is contained in:
Bill Zissimopoulos
2022-04-12 15:44:54 +01:00
parent 0a91292e05
commit e5879a9cb0
6 changed files with 171 additions and 20 deletions
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89
src/dll/fuse/fuse_intf.c
View File

@@ -850,6 +850,29 @@ exit:
return Result;
}
static VOID fsp_fuse_intf_GetOpenFileInfoPath(
struct fuse *f,
const char *PosixPath,
struct fuse_file_info *fi,
FSP_FSCTL_OPEN_FILE_INFO *OpenFileInfo)
{
char PosixNormalizedName[FSP_FSCTL_TRANSACT_PATH_SIZEMAX / sizeof(WCHAR)];
PWSTR NormalizedName;
ULONG NormalizedNameSize;
if (0 == f->ops.getpath(PosixPath, PosixNormalizedName, sizeof PosixNormalizedName, fi) &&
NT_SUCCESS(FspPosixMapPosixToWindowsPath(PosixNormalizedName, &NormalizedName)))
{
NormalizedNameSize = lstrlenW(NormalizedName) * sizeof(WCHAR);
if (OpenFileInfo->NormalizedNameSize >= NormalizedNameSize)
{
OpenFileInfo->NormalizedNameSize = (UINT16)NormalizedNameSize;
memcpy(OpenFileInfo->NormalizedName, NormalizedName, NormalizedNameSize);
}
FspPosixDeletePath(NormalizedName);
}
}
static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
PWSTR FileName, UINT32 CreateOptions, UINT32 GrantedAccess,
UINT32 FileAttributes, PSECURITY_DESCRIPTOR SecurityDescriptor, UINT64 AllocationSize,
@@ -1015,13 +1038,6 @@ static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
goto exit;
}
}
/*
* Ignore fuse_file_info::direct_io, fuse_file_info::keep_cache.
* NOTE: Originally WinFsp dit not support disabling the cache manager
* for an individual file. This is now possible and we should revisit.
*
* Ignore fuse_file_info::nonseekable.
*/
Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, contexthdr->PosixPath,
FUSE_FILE_INFO(CreateOptions & FILE_DIRECTORY_FILE, &fi),
@@ -1029,6 +1045,14 @@ static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
if (!NT_SUCCESS(Result))
goto exit;
/*
* Ignore fuse_file_info::direct_io, fuse_file_info::keep_cache.
* NOTE: Originally WinFsp did not support disabling the cache manager
* for an individual file. This is now possible and we should revisit.
*
* Ignore fuse_file_info::nonseekable.
*/
*PFileDesc = filedesc;
memcpy(FileInfo, &FileInfoBuf, sizeof FileInfoBuf);
@@ -1040,6 +1064,10 @@ static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
filedesc->DirBuffer = 0;
contexthdr->PosixPath = 0;
if (!f->VolumeParams.CaseSensitiveSearch && 0 != f->ops.getpath)
fsp_fuse_intf_GetOpenFileInfoPath(f, filedesc->PosixPath, -1 != fi.fh ? &fi : 0,
FspFileSystemGetOpenFileInfo(FileInfo));
Result = STATUS_SUCCESS;
exit:
@@ -1163,10 +1191,9 @@ static NTSTATUS fsp_fuse_intf_Open(FSP_FILE_SYSTEM *FileSystem,
goto exit;
/*
* Ignore fuse_file_info::direct_io, fuse_file_info::keep_cache
* WinFsp does not currently support disabling the cache manager
* for an individual file although it should not be hard to add
* if required.
* Ignore fuse_file_info::direct_io, fuse_file_info::keep_cache.
* NOTE: Originally WinFsp did not support disabling the cache manager
* for an individual file. This is now possible and we should revisit.
*
* Ignore fuse_file_info::nonseekable.
*/
@@ -1182,6 +1209,10 @@ static NTSTATUS fsp_fuse_intf_Open(FSP_FILE_SYSTEM *FileSystem,
filedesc->DirBuffer = 0;
contexthdr->PosixPath = 0;
if (!f->VolumeParams.CaseSensitiveSearch && 0 != f->ops.getpath)
fsp_fuse_intf_GetOpenFileInfoPath(f, filedesc->PosixPath, -1 != fi.fh ? &fi : 0,
FspFileSystemGetOpenFileInfo(FileInfo));
Result = STATUS_SUCCESS;
exit:
@@ -2112,6 +2143,10 @@ static NTSTATUS fsp_fuse_intf_GetDirInfoByName(FSP_FILE_SYSTEM *FileSystem,
char PosixPath[FSP_FSCTL_TRANSACT_PATH_SIZEMAX / sizeof(WCHAR)];
int ParentLength, FSlashLength, PosixNameLength;
UINT32 Uid, Gid, Mode;
char PosixNormalizedName[FSP_FSCTL_TRANSACT_PATH_SIZEMAX / sizeof(WCHAR)];
PWSTR NormalizedName, NormalizedNameSuffix;
ULONG NormalizedNameSize;
BOOLEAN Normalized = FALSE;
NTSTATUS Result;
if (!filedesc->IsDirectory || filedesc->IsReparsePoint)
@@ -2145,13 +2180,33 @@ static NTSTATUS fsp_fuse_intf_GetDirInfoByName(FSP_FILE_SYSTEM *FileSystem,
goto exit;
}
/*
* FUSE does not do FileName normalization; so just return the FileName as given to us!
*/
//memset(DirInfo->Padding, 0, sizeof DirInfo->Padding);
DirInfo->Size = (UINT16)(sizeof(FSP_FSCTL_DIR_INFO) + lstrlenW(FileName) * sizeof(WCHAR));
memcpy(DirInfo->FileNameBuf, FileName, DirInfo->Size - sizeof(FSP_FSCTL_DIR_INFO));
if (!f->VolumeParams.CaseSensitiveSearch && 0 != f->ops.getpath)
{
if (0 == f->ops.getpath(PosixPath, PosixNormalizedName, sizeof PosixNormalizedName, 0) &&
NT_SUCCESS(FspPosixMapPosixToWindowsPath(PosixNormalizedName, &NormalizedName)))
{
NormalizedNameSuffix = NormalizedName;
for (PWSTR P = NormalizedNameSuffix; *P; P++)
if (L'\\' == *P)
NormalizedNameSuffix = P + 1;
NormalizedNameSize = lstrlenW(NormalizedNameSuffix) * sizeof(WCHAR);
if (f->VolumeParams.MaxComponentLength * sizeof(WCHAR) >= NormalizedNameSize)
{
DirInfo->Size = (UINT16)(sizeof(FSP_FSCTL_DIR_INFO) + NormalizedNameSize);
memcpy(DirInfo->FileNameBuf, NormalizedNameSuffix, NormalizedNameSize);
Normalized = TRUE;
}
FspPosixDeletePath(NormalizedName);
}
}
if (!Normalized)
{
DirInfo->Size = (UINT16)(sizeof(FSP_FSCTL_DIR_INFO) + lstrlenW(FileName) * sizeof(WCHAR));
memcpy(DirInfo->FileNameBuf, FileName, DirInfo->Size - sizeof(FSP_FSCTL_DIR_INFO));
}
Result = STATUS_SUCCESS;

4
src/dll/fuse/fuse_loop.c
View File

@@ -95,9 +95,9 @@ static NTSTATUS fsp_fuse_loop_start(struct fuse *f)
context->private_data = f->data = f->ops.init(&conn);
f->VolumeParams.ReadOnlyVolume = 0 != (conn.want & FSP_FUSE_CAP_READ_ONLY);
f->VolumeParams.CaseSensitiveSearch = 0 == (conn.want & FSP_FUSE_CAP_CASE_INSENSITIVE);
if (!f->VolumeParams.CaseSensitiveSearch)
if (!f->VolumeParams.CaseSensitiveSearch && 0 == f->ops.getpath)
/*
* Disable GetDirInfoByName when file system is case-insensitive.
* Disable GetDirInfoByName when file system is case-insensitive and getpath == 0.
* The reason is that Windows always sends us queries with uppercase
* file names in GetDirInfoByName and we have no way in FUSE to normalize
* those file names when embedding them in FSP_FSCTL_DIR_INFO.