NTSTATUS
LwIoFuseGetNtFilename(
PIO_FUSE_CONTEXT pFuseContext,
PCSTR pszPath,
PIO_FILE_NAME pFilename
)
{
NTSTATUS status = STATUS_SUCCESS;
memset(pFilename, 0, sizeof(*pFilename));
status = LwRtlUnicodeStringAllocatePrintfW(
&pFilename->Name,
L"%ws/%s",
pFuseContext->pwszInternalPath,
pszPath);
BAIL_ON_NT_STATUS(status);
cleanup:
return status;
error:
RTL_UNICODE_STRING_FREE(&pFilename->Name);
memset(pFilename, 0, sizeof(*pFilename));
goto cleanup;
}
NTSTATUS
LwIoFuseUnlink(
const char* pszPath
)
{
NTSTATUS status = STATUS_SUCCESS;
IO_STATUS_BLOCK ioStatus = {0};
IO_FILE_HANDLE handle = NULL;
PIO_FUSE_CONTEXT pFuseContext = NULL;
IO_FILE_NAME filename = {0};
pFuseContext = LwIoFuseGetContext();
status = LwIoFuseGetNtFilename(
pFuseContext,
pszPath,
&filename);
BAIL_ON_NT_STATUS(status);
status = LwNtCreateFile(
&handle, /* File handle */
NULL, /* Async control block */
&ioStatus, /* IO status block */
&filename, /* Filename */
NULL, /* Security descriptor */
NULL, /* Security QOS */
DELETE, /* Desired access mask */
0, /* Allocation size */
0, /* File attributes */
FILE_SHARE_READ |
FILE_SHARE_WRITE |
FILE_SHARE_DELETE, /* Share access */
FILE_OPEN, /* Create disposition */
FILE_DELETE_ON_CLOSE, /* Create options */
NULL, /* EA buffer */
0, /* EA length */
NULL, /* ECP list */
NULL);
BAIL_ON_NT_STATUS(status);
cleanup:
if (handle)
{
LwNtCloseFile(handle);
}
RTL_UNICODE_STRING_FREE(&filename.Name);
return status;
error:
goto cleanup;
}
NTSTATUS
LwIoFuseRename(
const char* pszOldPath,
const char* pszNewPath
)
{
NTSTATUS status = STATUS_SUCCESS;
IO_STATUS_BLOCK ioStatus = {0};
IO_FILE_HANDLE handle = NULL;
PIO_FUSE_CONTEXT pFuseContext = NULL;
IO_FILE_NAME filename = {0};
PFILE_RENAME_INFORMATION pRenameInfo = NULL;
PWSTR pwszNewPath = NULL;
size_t newPathLength = 0;
pFuseContext = LwIoFuseGetContext();
status = LwIoFuseGetDriverRelativePath(
pFuseContext,
pszNewPath,
&pwszNewPath);
BAIL_ON_NT_STATUS(status);
newPathLength = LwRtlWC16StringNumChars(pwszNewPath);
status = RTL_ALLOCATE(
&pRenameInfo,
FILE_RENAME_INFORMATION,
sizeof(*pRenameInfo) + (newPathLength + 1) * sizeof(WCHAR));
BAIL_ON_NT_STATUS(status);
pRenameInfo->ReplaceIfExists = TRUE;
pRenameInfo->RootDirectory = NULL;
pRenameInfo->FileNameLength = newPathLength * sizeof(WCHAR);
memcpy(pRenameInfo->FileName, pwszNewPath, newPathLength * sizeof(WCHAR));
status = LwIoFuseGetNtFilename(
pFuseContext,
pszOldPath,
&filename);
BAIL_ON_NT_STATUS(status);
status = LwNtCreateFile(
&handle, /* File handle */
NULL, /* Async control block */
&ioStatus, /* IO status block */
&filename, /* Filename */
NULL, /* Security descriptor */
NULL, /* Security QOS */
DELETE, /* Desired access mask */
0, /* Allocation size */
0, /* File attributes */
FILE_SHARE_READ |
FILE_SHARE_WRITE |
FILE_SHARE_DELETE, /* Share access */
FILE_OPEN, /* Create disposition */
0, /* Create options */
NULL, /* EA buffer */
0, /* EA length */
NULL, /* ECP list */
NULL);
BAIL_ON_NT_STATUS(status);
status = LwNtSetInformationFile(
handle, /* File handle */
NULL, /* Async control block */
&ioStatus, /* IO status block */
pRenameInfo, /* File information */
sizeof(*pRenameInfo) + (newPathLength + 1) * sizeof(WCHAR), /* File information size */
FileRenameInformation); /* Information class */
BAIL_ON_NT_STATUS(status);
cleanup:
if (handle)
{
LwNtCloseFile(handle);
}
RTL_UNICODE_STRING_FREE(&filename.Name);
RTL_FREE(&pwszNewPath);
RTL_FREE(&pRenameInfo);
return status;
error:
goto cleanup;
}
NTSTATUS
LwIoFuseCreate(
const char* pszPath,
mode_t mode,
struct fuse_file_info* pFileInfo
)
{
NTSTATUS status = STATUS_SUCCESS;
IO_STATUS_BLOCK ioStatus = {0};
IO_FILE_HANDLE handle = NULL;
PIO_FUSE_CONTEXT pFuseContext = NULL;
IO_FILE_NAME filename = {0};
/* We only support creating regular files */
if (!S_ISREG(mode))
{
status = STATUS_NOT_SUPPORTED;
BAIL_ON_NT_STATUS(status);
}
pFuseContext = LwIoFuseGetContext();
status = LwIoFuseGetNtFilename(
pFuseContext,
pszPath,
&filename);
BAIL_ON_NT_STATUS(status);
status = LwNtCreateFile(
&handle, /* File handle */
NULL, /* Async control block */
&ioStatus, /* IO status block */
&filename, /* Filename */
NULL, /* Security descriptor */
NULL, /* Security QOS */
FILE_WRITE_DATA, /* Desired access mask */
0, /* Allocation size */
0, /* File attributes */
FILE_SHARE_READ |
FILE_SHARE_WRITE |
FILE_SHARE_DELETE, /* Share access */
FILE_CREATE, /* Create disposition */
FILE_NON_DIRECTORY_FILE, /* Create options */
NULL, /* EA buffer */
0, /* EA length */
NULL, /* ECP list */
NULL);
BAIL_ON_NT_STATUS(status);
pFileInfo->fh = NT_TO_FUSE_FH(handle);
cleanup:
RTL_UNICODE_STRING_FREE(&filename.Name);
return status;
error:
if (handle)
{
LwNtCloseFile(handle);
}
goto cleanup;
}
NTSTATUS
LwIoFuseTruncate(
const char* pszPath,
off_t size
)
{
NTSTATUS status = STATUS_SUCCESS;
IO_STATUS_BLOCK ioStatus = {0};
IO_FILE_HANDLE handle = NULL;
PIO_FUSE_CONTEXT pFuseContext = NULL;
FILE_END_OF_FILE_INFORMATION endOfFileInfo = {0};
IO_FILE_NAME filename = {0};
endOfFileInfo.EndOfFile = (LONG64) size;
pFuseContext = LwIoFuseGetContext();
status = LwIoFuseGetNtFilename(
pFuseContext,
pszPath,
&filename);
BAIL_ON_NT_STATUS(status);
status = LwNtCreateFile(
&handle, /* File handle */
NULL, /* Async control block */
&ioStatus, /* IO status block */
&filename, /* Filename */
NULL, /* Security descriptor */
NULL, /* Security QOS */
FILE_WRITE_DATA, /* Desired access mask */
0, /* Allocation size */
0, /* File attributes */
FILE_SHARE_READ |
FILE_SHARE_WRITE |
FILE_SHARE_DELETE, /* Share access */
FILE_OPEN, /* Create disposition */
FILE_NON_DIRECTORY_FILE, /* Create options */
NULL, /* EA buffer */
0, /* EA length */
NULL, /* ECP list */
NULL);
BAIL_ON_NT_STATUS(status);
status = LwNtSetInformationFile(
handle, /* File handle */
NULL, /* Async control block */
&ioStatus, /* IO status block */
&endOfFileInfo, /* File information */
sizeof(endOfFileInfo), /* File information size */
FileEndOfFileInformation); /* Information class */
BAIL_ON_NT_STATUS(status);
cleanup:
if (handle)
{
LwNtCloseFile(handle);
}
RTL_UNICODE_STRING_FREE(&filename.Name);
return status;
error:
goto cleanup;
}