예제 #1
0
static NTSTATUS close_directory(files_struct *fsp, enum file_close_type close_type)
{
	struct share_mode_lock *lck = 0;
	BOOL delete_dir = False;
	NTSTATUS status = NT_STATUS_OK;

	/*
	 * NT can set delete_on_close of the last open
	 * reference to a directory also.
	 */

	lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode, NULL, NULL);

	if (lck == NULL) {
		DEBUG(0, ("close_directory: Could not get share mode lock for %s\n", fsp->fsp_name));
		return NT_STATUS_INVALID_PARAMETER;
	}

	if (!del_share_mode(lck, fsp)) {
		DEBUG(0, ("close_directory: Could not delete share entry for %s\n", fsp->fsp_name));
	}

	if (fsp->initial_delete_on_close) {
		BOOL became_user = False;

		/* Initial delete on close was set - for
		 * directories we don't care if anyone else
		 * wrote a real delete on close. */

		if (current_user.vuid != fsp->vuid) {
			become_user(fsp->conn, fsp->vuid);
			became_user = True;
		}
		send_stat_cache_delete_message(fsp->fsp_name);
		set_delete_on_close_lck(lck, True, &current_user.ut);
		if (became_user) {
			unbecome_user();
		}
	}

	delete_dir = lck->delete_on_close;

	if (delete_dir) {
		int i;
		/* See if others still have the dir open. If this is the
		 * case, then don't delete. If all opens are POSIX delete now. */
		for (i=0; i<lck->num_share_modes; i++) {
			struct share_mode_entry *e = &lck->share_modes[i];
			if (is_valid_share_mode_entry(e)) {
				if (fsp->posix_open && (e->flags & SHARE_MODE_FLAG_POSIX_OPEN)) {
					continue;
				}
				delete_dir = False;
				break;
			}
		}
	}

	if ((close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE) &&
				delete_dir &&
				lck->delete_token) {
	
		/* Become the user who requested the delete. */

		if (!push_sec_ctx()) {
			smb_panic("close_directory: failed to push sec_ctx.\n");
		}

		set_sec_ctx(lck->delete_token->uid,
				lck->delete_token->gid,
				lck->delete_token->ngroups,
				lck->delete_token->groups,
				NULL);

		TALLOC_FREE(lck);

		status = rmdir_internals(fsp->conn, fsp->fsp_name);

		DEBUG(5,("close_directory: %s. Delete on close was set - "
			 "deleting directory returned %s.\n",
			 fsp->fsp_name, nt_errstr(status)));

		/* unbecome user. */
		pop_sec_ctx();

		/*
		 * Ensure we remove any change notify requests that would
		 * now fail as the directory has been deleted.
		 */

		if(NT_STATUS_IS_OK(status)) {
			remove_pending_change_notify_requests_by_fid(fsp, NT_STATUS_DELETE_PENDING);
		}
	} else {
		TALLOC_FREE(lck);
		remove_pending_change_notify_requests_by_fid(
			fsp, NT_STATUS_OK);
	}

	/*
	 * Do the code common to files and directories.
	 */
	close_filestruct(fsp);
	file_free(fsp);
	return status;
}
예제 #2
0
파일: close.c 프로젝트: vormetriclabs/samba
static NTSTATUS close_directory(struct smb_request *req, files_struct *fsp,
				enum file_close_type close_type)
{
	struct server_id self = messaging_server_id(fsp->conn->sconn->msg_ctx);
	struct share_mode_lock *lck = NULL;
	bool delete_dir = False;
	NTSTATUS status = NT_STATUS_OK;
	NTSTATUS status1 = NT_STATUS_OK;
	const struct security_token *del_nt_token = NULL;
	const struct security_unix_token *del_token = NULL;
	NTSTATUS notify_status;

	if (fsp->conn->sconn->using_smb2) {
		notify_status = STATUS_NOTIFY_CLEANUP;
	} else {
		notify_status = NT_STATUS_OK;
	}

	/*
	 * NT can set delete_on_close of the last open
	 * reference to a directory also.
	 */

	lck = get_existing_share_mode_lock(talloc_tos(), fsp->file_id);
	if (lck == NULL) {
		DEBUG(0, ("close_directory: Could not get share mode lock for "
			  "%s\n", fsp_str_dbg(fsp)));
		return NT_STATUS_INVALID_PARAMETER;
	}

	if (fsp->initial_delete_on_close) {
		bool became_user = False;

		/* Initial delete on close was set - for
		 * directories we don't care if anyone else
		 * wrote a real delete on close. */

		if (get_current_vuid(fsp->conn) != fsp->vuid) {
			become_user(fsp->conn, fsp->vuid);
			became_user = True;
		}
		send_stat_cache_delete_message(fsp->conn->sconn->msg_ctx,
					       fsp->fsp_name->base_name);
		set_delete_on_close_lck(fsp, lck,
				get_current_nttok(fsp->conn),
				get_current_utok(fsp->conn));
		fsp->delete_on_close = true;
		if (became_user) {
			unbecome_user();
		}
	}

	delete_dir = get_delete_on_close_token(lck, fsp->name_hash,
					&del_nt_token, &del_token);

	if (delete_dir) {
		int i;
		/* See if others still have the dir open. If this is the
		 * case, then don't delete. If all opens are POSIX delete now. */
		for (i=0; i<lck->data->num_share_modes; i++) {
			struct share_mode_entry *e = &lck->data->share_modes[i];
			if (is_valid_share_mode_entry(e) &&
					e->name_hash == fsp->name_hash) {
				if ((fsp->posix_flags & FSP_POSIX_FLAGS_OPEN) &&
				    (e->flags & SHARE_MODE_FLAG_POSIX_OPEN))
				{
					continue;
				}
				if (serverid_equal(&self, &e->pid) &&
				    (e->share_file_id == fsp->fh->gen_id)) {
					continue;
				}
				if (share_mode_stale_pid(lck->data, i)) {
					continue;
				}
				delete_dir = False;
				break;
			}
		}
	}

	if ((close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE) &&
				delete_dir) {
	
		/* Become the user who requested the delete. */

		if (!push_sec_ctx()) {
			smb_panic("close_directory: failed to push sec_ctx.\n");
		}

		set_sec_ctx(del_token->uid,
				del_token->gid,
				del_token->ngroups,
				del_token->groups,
				del_nt_token);

		if (!del_share_mode(lck, fsp)) {
			DEBUG(0, ("close_directory: Could not delete share entry for "
				  "%s\n", fsp_str_dbg(fsp)));
		}

		TALLOC_FREE(lck);

		if ((fsp->conn->fs_capabilities & FILE_NAMED_STREAMS)
		    && !is_ntfs_stream_smb_fname(fsp->fsp_name)) {

			status = delete_all_streams(fsp->conn, fsp->fsp_name->base_name);
			if (!NT_STATUS_IS_OK(status)) {
				DEBUG(5, ("delete_all_streams failed: %s\n",
					  nt_errstr(status)));
				return status;
			}
		}

		status = rmdir_internals(talloc_tos(), fsp);

		DEBUG(5,("close_directory: %s. Delete on close was set - "
			 "deleting directory returned %s.\n",
			 fsp_str_dbg(fsp), nt_errstr(status)));

		/* unbecome user. */
		pop_sec_ctx();

		/*
		 * Ensure we remove any change notify requests that would
		 * now fail as the directory has been deleted.
		 */

		if (NT_STATUS_IS_OK(status)) {
			notify_status = NT_STATUS_DELETE_PENDING;
		}
	} else {
		if (!del_share_mode(lck, fsp)) {
			DEBUG(0, ("close_directory: Could not delete share entry for "
				  "%s\n", fsp_str_dbg(fsp)));
		}

		TALLOC_FREE(lck);
	}

	remove_pending_change_notify_requests_by_fid(fsp, notify_status);

	status1 = fd_close(fsp);

	if (!NT_STATUS_IS_OK(status1)) {
		DEBUG(0, ("Could not close dir! fname=%s, fd=%d, err=%d=%s\n",
			  fsp_str_dbg(fsp), fsp->fh->fd, errno,
			  strerror(errno)));
	}

	/*
	 * Do the code common to files and directories.
	 */
	close_filestruct(fsp);
	file_free(req, fsp);

	if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(status1)) {
		status = status1;
	}
	return status;
}
예제 #3
0
static int close_directory(files_struct *fsp, enum file_close_type close_type)
{
	struct share_mode_lock *lck = 0;
	BOOL delete_dir = False;

	/*
	 * NT can set delete_on_close of the last open
	 * reference to a directory also.
	 */

	lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode, NULL, NULL);

	if (lck == NULL) {
		DEBUG(0, ("close_directory: Could not get share mode lock for %s\n", fsp->fsp_name));
		return EINVAL;
	}

	if (!del_share_mode(lck, fsp)) {
		DEBUG(0, ("close_directory: Could not delete share entry for %s\n", fsp->fsp_name));
	}

	delete_dir = (lck->delete_on_close | lck->initial_delete_on_close);

	if ((close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE) &&
				delete_dir &&
				lck->delete_token) {
		BOOL ok;
	
		/* Become the user who requested the delete. */

		if (!push_sec_ctx()) {
			smb_panic("close_directory: failed to push sec_ctx.\n");
		}

		set_sec_ctx(lck->delete_token->uid,
				lck->delete_token->gid,
				lck->delete_token->ngroups,
				lck->delete_token->groups,
				NULL);

		TALLOC_FREE(lck);

		ok = rmdir_internals(fsp->conn, fsp->fsp_name);

		DEBUG(5,("close_directory: %s. Delete on close was set - deleting directory %s.\n",
			fsp->fsp_name, ok ? "succeeded" : "failed" ));

		/* unbecome user. */
		pop_sec_ctx();

		/*
		 * Ensure we remove any change notify requests that would
		 * now fail as the directory has been deleted.
		 */

		if(ok) {
			remove_pending_change_notify_requests_by_fid(fsp, NT_STATUS_DELETE_PENDING);
			remove_pending_change_notify_requests_by_filename(fsp, NT_STATUS_DELETE_PENDING);

		}
		process_pending_change_notify_queue((time_t)0);
	} else {
		TALLOC_FREE(lck);
		remove_pending_change_notify_requests_by_fid(fsp, NT_STATUS_CANCELLED);
	}

	/*
	 * Do the code common to files and directories.
	 */
	close_filestruct(fsp);
	file_free(fsp);
	return 0;
}