Esempio n. 1
0
static files_struct *get_fsp_from_pkt(char *inbuf)
{
	switch(CVAL(inbuf,smb_com)) {
		case SMBlock:
		case SMBlockread:
			return file_fsp(inbuf,smb_vwv0);
		case SMBlockingX:
			return file_fsp(inbuf,smb_vwv2);
		default:
			DEBUG(0,("get_fsp_from_pkt: PANIC - unknown type on blocking lock queue - exiting.!\n"));
			exit_server("PANIC - unknown type on blocking lock queue");
	}
	return NULL; /* Keep compiler happy. */
}
Esempio n. 2
0
static struct tevent_req *smbd_smb2_read_send(TALLOC_CTX *mem_ctx,
					      struct tevent_context *ev,
					      struct smbd_smb2_request *smb2req,
					      uint32_t in_smbpid,
					      uint64_t in_file_id_volatile,
					      uint32_t in_length,
					      uint64_t in_offset,
					      uint32_t in_minimum,
					      uint32_t in_remaining)
{
	NTSTATUS status;
	struct tevent_req *req = NULL;
	struct smbd_smb2_read_state *state = NULL;
	struct smb_request *smbreq = NULL;
	connection_struct *conn = smb2req->tcon->compat_conn;
	files_struct *fsp = NULL;
	ssize_t nread = -1;
	struct lock_struct lock;
	int saved_errno;

	req = tevent_req_create(mem_ctx, &state,
				struct smbd_smb2_read_state);
	if (req == NULL) {
		return NULL;
	}
	state->smb2req = smb2req;
	state->in_length = in_length;
	state->in_offset = in_offset;
	state->in_minimum = in_minimum;
	state->out_data = data_blob_null;
	state->out_remaining = 0;

	DEBUG(10,("smbd_smb2_read: file_id[0x%016llX]\n",
		  (unsigned long long)in_file_id_volatile));

	smbreq = smbd_smb2_fake_smb_request(smb2req);
	if (tevent_req_nomem(smbreq, req)) {
		return tevent_req_post(req, ev);
	}

	fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
	if (fsp == NULL) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}
	if (conn != fsp->conn) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}
	if (smb2req->session->vuid != fsp->vuid) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}
	if (fsp->is_directory) {
		tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
		return tevent_req_post(req, ev);
	}

	state->fsp = fsp;
	state->in_file_id_volatile = in_file_id_volatile;

	if (IS_IPC(smbreq->conn)) {
		struct tevent_req *subreq = NULL;

		state->out_data = data_blob_talloc(state, NULL, in_length);
		if (in_length > 0 && tevent_req_nomem(state->out_data.data, req)) {
			return tevent_req_post(req, ev);
		}

		if (!fsp_is_np(fsp)) {
			tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
			return tevent_req_post(req, ev);
		}

		subreq = np_read_send(state, server_event_context(),
				      fsp->fake_file_handle,
				      state->out_data.data,
				      state->out_data.length);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq,
					smbd_smb2_read_pipe_done,
					req);
		return req;
	}

	if (!CHECK_READ(fsp, smbreq)) {
		tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
		return tevent_req_post(req, ev);
	}

	status = schedule_smb2_aio_read(fsp->conn,
				smbreq,
				fsp,
				state,
				&state->out_data,
				(SMB_OFF_T)in_offset,
				(size_t)in_length);

	if (NT_STATUS_IS_OK(status)) {
		/*
		 * Doing an async read. Don't
		 * send a "gone async" message
		 * as we expect this to be less
		 * than the client timeout period.
		 * JRA. FIXME for offline files..
		 * FIXME. Add cancel code..
		 */
		smb2req->async = true;
		return req;
	}

	if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
		/* Real error in setting up aio. Fail. */
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}

	/* Fallback to synchronous. */

	init_strict_lock_struct(fsp,
				in_file_id_volatile,
				in_offset,
				in_length,
				READ_LOCK,
				&lock);

	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
		tevent_req_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
		return tevent_req_post(req, ev);
	}

	/* Try sendfile in preference. */
	status = schedule_smb2_sendfile_read(smb2req, state);
	if (NT_STATUS_IS_OK(status)) {
		tevent_req_done(req);
		return tevent_req_post(req, ev);
	} else {
		if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
			SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
			tevent_req_nterror(req, status);
			return tevent_req_post(req, ev);
		}
	}

	/* Ok, read into memory. Allocate the out buffer. */
	state->out_data = data_blob_talloc(state, NULL, in_length);
	if (in_length > 0 && tevent_req_nomem(state->out_data.data, req)) {
		SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
		return tevent_req_post(req, ev);
	}

	nread = read_file(fsp,
			  (char *)state->out_data.data,
			  in_offset,
			  in_length);

	saved_errno = errno;

	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);

	DEBUG(10,("smbd_smb2_read: file %s handle [0x%016llX] offset=%llu "
		"len=%llu returned %lld\n",
		fsp_str_dbg(fsp),
		(unsigned long long)in_file_id_volatile,
		(unsigned long long)in_offset,
		(unsigned long long)in_length,
		(long long)nread));

	status = smb2_read_complete(req, nread, saved_errno);
	if (!NT_STATUS_IS_OK(status)) {
		tevent_req_nterror(req, status);
	} else {
		/* Success. */
		tevent_req_done(req);
	}
	return tevent_req_post(req, ev);
}
Esempio n. 3
0
static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
				uint16_t in_flags,
				uint64_t in_file_id_volatile,
				DATA_BLOB *outbody)
{
	NTSTATUS status;
	struct smb_request *smbreq;
	connection_struct *conn = req->tcon->compat_conn;
	files_struct *fsp;
	struct smb_filename *smb_fname = NULL;
	struct timespec mdate_ts, adate_ts, cdate_ts, create_date_ts;
	uint64_t allocation_size = 0;
	uint64_t file_size = 0;
	uint32_t dos_attrs = 0;
	uint16_t out_flags = 0;
	bool posix_open = false;

	ZERO_STRUCT(create_date_ts);
	ZERO_STRUCT(adate_ts);
	ZERO_STRUCT(mdate_ts);
	ZERO_STRUCT(cdate_ts);

	DEBUG(10,("smbd_smb2_close: file_id[0x%016llX]\n",
		  (unsigned long long)in_file_id_volatile));

	smbreq = smbd_smb2_fake_smb_request(req);
	if (smbreq == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
	if (fsp == NULL) {
		return NT_STATUS_FILE_CLOSED;
	}
	if (conn != fsp->conn) {
		return NT_STATUS_FILE_CLOSED;
	}
	if (req->session->vuid != fsp->vuid) {
		return NT_STATUS_FILE_CLOSED;
	}

	posix_open = fsp->posix_open;
	status = copy_smb_filename(talloc_tos(),
				fsp->fsp_name,
				&smb_fname);
	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}

	status = close_file(smbreq, fsp, NORMAL_CLOSE);
	if (!NT_STATUS_IS_OK(status)) {
		DEBUG(5,("smbd_smb2_close: close_file[%s]: %s\n",
			 fsp_str_dbg(fsp), nt_errstr(status)));
		return status;
	}

	if (in_flags & SMB2_CLOSE_FLAGS_FULL_INFORMATION) {
		int ret;
		if (posix_open) {
			ret = SMB_VFS_LSTAT(conn, smb_fname);
		} else {
			ret = SMB_VFS_STAT(conn, smb_fname);
		}
		if (ret == 0) {
			out_flags = SMB2_CLOSE_FLAGS_FULL_INFORMATION;
			dos_attrs = dos_mode(conn, smb_fname);
			mdate_ts = smb_fname->st.st_ex_mtime;
			adate_ts = smb_fname->st.st_ex_atime;
			create_date_ts = get_create_timespec(conn, NULL, smb_fname);
			cdate_ts = get_change_timespec(conn, NULL, smb_fname);

			if (lp_dos_filetime_resolution(SNUM(conn))) {
				dos_filetime_timespec(&create_date_ts);
				dos_filetime_timespec(&mdate_ts);
				dos_filetime_timespec(&adate_ts);
				dos_filetime_timespec(&cdate_ts);
			}
			if (!(dos_attrs & FILE_ATTRIBUTE_DIRECTORY)) {
				file_size = get_file_size_stat(&smb_fname->st);
			}

			allocation_size = SMB_VFS_GET_ALLOC_SIZE(conn, NULL, &smb_fname->st);
		}
	}

	SSVAL(outbody->data, 0x00, 0x3C);	/* struct size */
	SSVAL(outbody->data, 0x02, out_flags);	/* flags */
	SIVAL(outbody->data, 0x04, 0);		/* reserved */
	put_long_date_timespec(conn->ts_res,
		(char *)&outbody->data[0x8],create_date_ts); /* creation time */
	put_long_date_timespec(conn->ts_res,
		(char *)&outbody->data[0x10],adate_ts); /* last access time */
	put_long_date_timespec(conn->ts_res,
		(char *)&outbody->data[0x18],mdate_ts); /* last write time */
	put_long_date_timespec(conn->ts_res,
		(char *)&outbody->data[0x20],cdate_ts); /* change time */
	SBVAL(outbody->data, 0x28, allocation_size);/* allocation size */
	SBVAL(outbody->data, 0x30, file_size);	/* end of file */
	SIVAL(outbody->data, 0x38, dos_attrs);	/* file attributes */

	return NT_STATUS_OK;
}
Esempio n. 4
0
static struct tevent_req *smbd_smb2_getinfo_send(TALLOC_CTX *mem_ctx,
						 struct tevent_context *ev,
						 struct smbd_smb2_request *smb2req,
						 uint8_t in_info_type,
						 uint8_t in_file_info_class,
						 uint32_t in_output_buffer_length,
						 DATA_BLOB in_input_buffer,
						 uint32_t in_additional_information,
						 uint32_t in_flags,
						 uint64_t in_file_id_volatile)
{
	struct tevent_req *req;
	struct smbd_smb2_getinfo_state *state;
	struct smb_request *smbreq;
	connection_struct *conn = smb2req->tcon->compat_conn;
	files_struct *fsp;
	NTSTATUS status;

	req = tevent_req_create(mem_ctx, &state,
				struct smbd_smb2_getinfo_state);
	if (req == NULL) {
		return NULL;
	}
	state->smb2req = smb2req;
	state->status = NT_STATUS_OK;
	state->out_output_buffer = data_blob_null;

	DEBUG(10,("smbd_smb2_getinfo_send: file_id[0x%016llX]\n",
		  (unsigned long long)in_file_id_volatile));

	smbreq = smbd_smb2_fake_smb_request(smb2req);
	if (tevent_req_nomem(smbreq, req)) {
		return tevent_req_post(req, ev);
	}

	fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
	if (fsp == NULL) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}
	if (conn != fsp->conn) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}
	if (smb2req->session->vuid != fsp->vuid) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}

	if (IS_IPC(conn)) {
		smb2_ipc_getinfo(req, state, ev,
			in_info_type, in_file_info_class);
		return tevent_req_post(req, ev);
	}

	switch (in_info_type) {
	case 0x01:/* SMB2_GETINFO_FILE */
	{
		uint16_t file_info_level;
		char *data = NULL;
		unsigned int data_size = 0;
		bool delete_pending = false;
		struct timespec write_time_ts;
		struct file_id fileid;
		struct ea_list *ea_list = NULL;
		int lock_data_count = 0;
		char *lock_data = NULL;

		ZERO_STRUCT(write_time_ts);

		switch (in_file_info_class) {
		case 0x0F:/* RAW_FILEINFO_SMB2_ALL_EAS */
			file_info_level = 0xFF00 | in_file_info_class;
			break;

		case 0x12:/* RAW_FILEINFO_SMB2_ALL_INFORMATION */
			file_info_level = 0xFF00 | in_file_info_class;
			break;

		default:
			/* the levels directly map to the passthru levels */
			file_info_level = in_file_info_class + 1000;
			break;
		}

		if (fsp->fake_file_handle) {
			/*
			 * This is actually for the QUOTA_FAKE_FILE --metze
			 */

			/* We know this name is ok, it's already passed the checks. */

		} else if (fsp && fsp->fh->fd == -1) {
			/*
			 * This is actually a QFILEINFO on a directory
			 * handle (returned from an NT SMB). NT5.0 seems
			 * to do this call. JRA.
			 */

			if (INFO_LEVEL_IS_UNIX(file_info_level)) {
				/* Always do lstat for UNIX calls. */
				if (SMB_VFS_LSTAT(conn, fsp->fsp_name)) {
					DEBUG(3,("smbd_smb2_getinfo_send: "
						 "SMB_VFS_LSTAT of %s failed "
						 "(%s)\n", fsp_str_dbg(fsp),
						 strerror(errno)));
					status = map_nt_error_from_unix(errno);
					tevent_req_nterror(req, status);
					return tevent_req_post(req, ev);
				}
			} else if (SMB_VFS_STAT(conn, fsp->fsp_name)) {
				DEBUG(3,("smbd_smb2_getinfo_send: "
					 "SMB_VFS_STAT of %s failed (%s)\n",
					 fsp_str_dbg(fsp),
					 strerror(errno)));
				status = map_nt_error_from_unix(errno);
				tevent_req_nterror(req, status);
				return tevent_req_post(req, ev);
			}

			fileid = vfs_file_id_from_sbuf(conn,
						       &fsp->fsp_name->st);
			get_file_infos(fileid, fsp->name_hash,
				&delete_pending, &write_time_ts);
		} else {
			/*
			 * Original code - this is an open file.
			 */

			if (SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
				DEBUG(3, ("smbd_smb2_getinfo_send: "
					  "fstat of fnum %d failed (%s)\n",
					  fsp->fnum, strerror(errno)));
				status = map_nt_error_from_unix(errno);
				tevent_req_nterror(req, status);
				return tevent_req_post(req, ev);
			}
			fileid = vfs_file_id_from_sbuf(conn,
						       &fsp->fsp_name->st);
			get_file_infos(fileid, fsp->name_hash,
				&delete_pending, &write_time_ts);
		}

		status = smbd_do_qfilepathinfo(conn, state,
					       file_info_level,
					       fsp,
					       fsp->fsp_name,
					       delete_pending,
					       write_time_ts,
					       ea_list,
					       lock_data_count,
					       lock_data,
					       STR_UNICODE,
					       in_output_buffer_length,
					       &data,
					       &data_size);
		if (!NT_STATUS_IS_OK(status)) {
			SAFE_FREE(data);
			if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
				status = NT_STATUS_INVALID_INFO_CLASS;
			}
			tevent_req_nterror(req, status);
			return tevent_req_post(req, ev);
		}
		if (data_size > 0) {
			state->out_output_buffer = data_blob_talloc(state,
								    data,
								    data_size);
			SAFE_FREE(data);
			if (tevent_req_nomem(state->out_output_buffer.data, req)) {
				return tevent_req_post(req, ev);
			}
		}
		SAFE_FREE(data);
		break;
	}

	case 0x02:/* SMB2_GETINFO_FS */
	{
		uint16_t file_info_level;
		char *data = NULL;
		int data_size = 0;

		/* the levels directly map to the passthru levels */
		file_info_level = in_file_info_class + 1000;

		status = smbd_do_qfsinfo(conn, state,
					 file_info_level,
					 STR_UNICODE,
					 in_output_buffer_length,
					 &data,
					 &data_size);
		if (!NT_STATUS_IS_OK(status)) {
			SAFE_FREE(data);
			if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
				status = NT_STATUS_INVALID_INFO_CLASS;
			}
			tevent_req_nterror(req, status);
			return tevent_req_post(req, ev);
		}
		if (data_size > 0) {
			state->out_output_buffer = data_blob_talloc(state,
								    data,
								    data_size);
			SAFE_FREE(data);
			if (tevent_req_nomem(state->out_output_buffer.data, req)) {
				return tevent_req_post(req, ev);
			}
		}
		SAFE_FREE(data);
		break;
	}

	case 0x03:/* SMB2_GETINFO_SEC */
	{
		uint8_t *p_marshalled_sd = NULL;
		size_t sd_size = 0;

		status = smbd_do_query_security_desc(conn,
				state,
				fsp,
				/* Security info wanted. */
				in_additional_information,
				in_output_buffer_length,
				&p_marshalled_sd,
				&sd_size);

		if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
			/* Return needed size. */
			state->out_output_buffer = data_blob_talloc(state,
								    NULL,
								    4);
			if (tevent_req_nomem(state->out_output_buffer.data, req)) {
				return tevent_req_post(req, ev);
			}
			SIVAL(state->out_output_buffer.data,0,(uint32_t)sd_size);
			state->status = NT_STATUS_BUFFER_TOO_SMALL;
			break;
		}
		if (!NT_STATUS_IS_OK(status)) {
			DEBUG(10,("smbd_smb2_getinfo_send: "
				 "smbd_do_query_security_desc of %s failed "
				 "(%s)\n", fsp_str_dbg(fsp),
				 nt_errstr(status)));
			tevent_req_nterror(req, status);
			return tevent_req_post(req, ev);
		}

		if (sd_size > 0) {
			state->out_output_buffer = data_blob_talloc(state,
								    p_marshalled_sd,
								    sd_size);
			if (tevent_req_nomem(state->out_output_buffer.data, req)) {
				return tevent_req_post(req, ev);
			}
		}
		break;
	}

	default:
		DEBUG(10,("smbd_smb2_getinfo_send: "
			"unknown in_info_type of %u "
			" for file %s\n",
			(unsigned int)in_info_type,
			fsp_str_dbg(fsp) ));

		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
		return tevent_req_post(req, ev);
	}

	tevent_req_done(req);
	return tevent_req_post(req, ev);
}
Esempio n. 5
0
static struct tevent_req *smbd_smb2_notify_send(TALLOC_CTX *mem_ctx,
						struct tevent_context *ev,
						struct smbd_smb2_request *smb2req,
						uint16_t in_flags,
						uint32_t in_output_buffer_length,
						uint64_t in_file_id_volatile,
						uint64_t in_completion_filter)
{
	struct tevent_req *req;
	struct smbd_smb2_notify_state *state;
	struct smb_request *smbreq;
	connection_struct *conn = smb2req->tcon->compat_conn;
	files_struct *fsp;
	bool recursive = (in_flags & 0x0001) ? true : false;
	NTSTATUS status;

	req = tevent_req_create(mem_ctx, &state,
				struct smbd_smb2_notify_state);
	if (req == NULL) {
		return NULL;
	}
	state->smb2req = smb2req;
	state->status = NT_STATUS_INTERNAL_ERROR;
	state->out_output_buffer = data_blob_null;
	state->im = NULL;

	DEBUG(10,("smbd_smb2_notify_send: file_id[0x%016llX]\n",
		  (unsigned long long)in_file_id_volatile));

	smbreq = smbd_smb2_fake_smb_request(smb2req);
	if (tevent_req_nomem(smbreq, req)) {
		return tevent_req_post(req, ev);
	}

	state->smbreq = smbreq;
	smbreq->async_priv = (void *)req;

	fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
	if (fsp == NULL) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}
	if (conn != fsp->conn) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}
	if (smb2req->session->vuid != fsp->vuid) {
		tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
		return tevent_req_post(req, ev);
	}

	{
		char *filter_string;

		filter_string = notify_filter_string(NULL, in_completion_filter);
		if (tevent_req_nomem(filter_string, req)) {
			return tevent_req_post(req, ev);
		}

		DEBUG(3,("smbd_smb2_notify_send: notify change "
			 "called on %s, filter = %s, recursive = %d\n",
			 fsp_str_dbg(fsp), filter_string, recursive));

		TALLOC_FREE(filter_string);
	}

	if ((!fsp->is_directory) || (conn != fsp->conn)) {
		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
		return tevent_req_post(req, ev);
	}

	if (fsp->notify == NULL) {

		status = change_notify_create(fsp,
					      in_completion_filter,
					      recursive);
		if (!NT_STATUS_IS_OK(status)) {
			DEBUG(10, ("change_notify_create returned %s\n",
				   nt_errstr(status)));
			tevent_req_nterror(req, status);
			return tevent_req_post(req, ev);
		}
	}

	if (fsp->notify->num_changes != 0) {

		/*
		 * We've got changes pending, respond immediately
		 */

		/*
		 * TODO: write a torture test to check the filtering behaviour
		 * here.
		 */

		change_notify_reply(smbreq,
				    NT_STATUS_OK,
				    in_output_buffer_length,
				    fsp->notify,
				    smbd_smb2_notify_reply);

		/*
		 * change_notify_reply() above has independently
		 * called tevent_req_done().
		 */
		return tevent_req_post(req, ev);
	}

	state->im = tevent_create_immediate(state);
	if (tevent_req_nomem(state->im, req)) {
		return tevent_req_post(req, ev);
	}

	/*
	 * No changes pending, queue the request
	 */

	status = change_notify_add_request(smbreq,
			in_output_buffer_length,
			in_completion_filter,
			recursive, fsp,
			smbd_smb2_notify_reply);
	if (!NT_STATUS_IS_OK(status)) {
		tevent_req_nterror(req, status);
		return tevent_req_post(req, ev);
	}

	/* allow this request to be canceled */
	tevent_req_set_cancel_fn(req, smbd_smb2_notify_cancel);

	return req;
}