/**
* Remove a regular file / directory.
*
* @param parent inode of the directory
* @param dentry directory cache entry
* @param fDirectory true if directory, false otherwise
* @returns 0 on success, Linux error code otherwise
*/
static int sf_unlink_aux(struct inode *parent, struct dentry *dentry, int fDirectory)
{
int rc, err;
struct sf_glob_info *sf_g = GET_GLOB_INFO(parent->i_sb);
struct sf_inode_info *sf_i = GET_INODE_INFO(parent);
SHFLSTRING *path;
uint32_t fFlags;
TRACE();
BUG_ON(!sf_g);
err = sf_path_from_dentry(__func__, sf_g, sf_i, dentry, &path);
if (err)
goto fail0;
fFlags = fDirectory ? SHFL_REMOVE_DIR : SHFL_REMOVE_FILE;
if ( dentry
&& dentry->d_inode
&& ((dentry->d_inode->i_mode & S_IFLNK) == S_IFLNK))
fFlags |= SHFL_REMOVE_SYMLINK;
rc = vboxCallRemove(&client_handle, &sf_g->map, path, fFlags);
if (RT_FAILURE(rc))
{
LogFunc(("(%d): vboxCallRemove(%s) failed rc=%Rrc\n", fDirectory,
path->String.utf8, rc));
err = -RTErrConvertToErrno(rc);
goto fail1;
}
/* directory access/change time changed */
sf_i->force_restat = 1;
/* directory content changed */
sf_i->force_reread = 1;
err = 0;
fail1:
kfree(path);
fail0:
return err;
}
NTSTATUS vbsfRemove(IN PRX_CONTEXT RxContext)
{
NTSTATUS Status = STATUS_SUCCESS;
RxCaptureFcb;
RxCaptureFobx;
PMRX_VBOX_DEVICE_EXTENSION pDeviceExtension = VBoxMRxGetDeviceExtension(RxContext);
PMRX_VBOX_NETROOT_EXTENSION pNetRootExtension = VBoxMRxGetNetRootExtension(capFcb->pNetRoot);
PMRX_VBOX_FOBX pVBoxFobx = VBoxMRxGetFileObjectExtension(capFobx);
PUNICODE_STRING RemainingName = GET_ALREADY_PREFIXED_NAME_FROM_CONTEXT(RxContext);
int vboxRC;
PSHFLSTRING ParsedPath = NULL;
ULONG ParsedPathSize;
Log(("VBOXSF: vbsfRemove: Delete %.*ls. open count = %d\n",
RemainingName->Length / sizeof(WCHAR), RemainingName->Buffer, capFcb->OpenCount));
/* Close file first if not already done. */
if (pVBoxFobx->hFile != SHFL_HANDLE_NIL)
{
vbsfCloseFileHandle(pDeviceExtension, pNetRootExtension, pVBoxFobx);
}
/* Calculate length required for parsed path.
*/
ParsedPathSize = sizeof(*ParsedPath) + (RemainingName->Length + sizeof(WCHAR));
Log(("VBOXSF: vbsfRemove: ParsedPathSize %d\n",
ParsedPathSize));
ParsedPath = (PSHFLSTRING)vbsfAllocNonPagedMem(ParsedPathSize);
if (!ParsedPath)
{
return STATUS_INSUFFICIENT_RESOURCES;
}
ShflStringInitBuffer(ParsedPath, ParsedPathSize - sizeof(SHFLSTRING));
Log(("VBOXSF: vbsfRemove: Setup ParsedPath\n"));
ParsedPath->u16Size = RemainingName->Length + sizeof(WCHAR);
ParsedPath->u16Length = ParsedPath->u16Size - sizeof(WCHAR); /* without terminating null */
RtlCopyMemory(ParsedPath->String.ucs2, RemainingName->Buffer, ParsedPath->u16Length);
/* Call host. */
vboxRC = vboxCallRemove(&pDeviceExtension->hgcmClient, &pNetRootExtension->map,
ParsedPath,
(pVBoxFobx->FileStandardInfo.Directory) ? SHFL_REMOVE_DIR : SHFL_REMOVE_FILE);
if (ParsedPath)
{
vbsfFreeNonPagedMem(ParsedPath);
}
if (vboxRC == VINF_SUCCESS)
{
SetFlag(capFobx->pSrvOpen->Flags, SRVOPEN_FLAG_FILE_DELETED);
}
Status = VBoxErrorToNTStatus(vboxRC);
if (vboxRC != VINF_SUCCESS)
{
Log(("VBOXSF: vbsfRemove: vboxCallRemove failed with %Rrc\n",
vboxRC));
}
Log(("VBOXSF: vbsfRemove: Returned 0x%08X\n",
Status));
return Status;
}
