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firewall_sp_set_firewall_group_mode.sql
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-- Copyright (c) 2020, 2024, Oracle and/or its affiliates.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License, version 2.0,
-- as published by the Free Software Foundation.
--
-- This program is designed to work with certain software (including
-- but not limited to OpenSSL) that is licensed under separate terms,
-- as designated in a particular file or component or in included license
-- documentation. The authors of MySQL hereby grant you an additional
-- permission to link the program and your derivative works with the
-- separately licensed software that they have either included with
-- the program or referenced in the documentation.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License, version 2.0, for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
--
-- Create new variant of sp_set_firewall_group_mode
--
-- WARNING: If the .sql files are changed in a patch release, then it is
-- possible that the Firewall plugin, after a downgrade, will not work as intended.
-- Please try to avoid changes in patch releases.
DELIMITER $$
CREATE DEFINER='mysql.sys'@'localhost'
PROCEDURE sp_set_firewall_group_mode (
IN arg_group_name VARCHAR(288),
IN arg_mode VARCHAR(12))
SQL SECURITY INVOKER
BEGIN
DECLARE result VARCHAR(160);
DECLARE prev_mode VARCHAR(12);
DECLARE prev_user VARCHAR(288);
DECLARE reset_done BOOLEAN DEFAULT False;
DECLARE EXIT HANDLER FOR SQLEXCEPTION
BEGIN
IF (@prev_mode IS NOT NULL) THEN
SELECT set_firewall_group_mode(arg_group_name, @prev_mode, IF(@prev_user IS NOT NULL, @prev_user, '')) INTO result;
END IF;
ROLLBACK;
RESIGNAL;
END;
START TRANSACTION;
SET @prev_mode = (SELECT mode FROM performance_schema.firewall_groups WHERE name = arg_group_name);
SET @prev_user = (SELECT userhost FROM performance_schema.firewall_groups WHERE name = arg_group_name);
IF arg_mode = "RECORDING" THEN
SELECT read_firewall_group_allowlist(arg_group_name,FW.rule) FROM firewall_group_allowlist FW WHERE name = arg_group_name;
END IF;
SELECT set_firewall_group_mode(arg_group_name, arg_mode) INTO result;
IF arg_mode = "RESET" THEN
DELETE FROM firewall_group_allowlist WHERE name = arg_group_name;
SET arg_mode = "OFF";
SET reset_done = True;
END IF;
IF result = "OK" THEN
INSERT INTO firewall_groups VALUES (arg_group_name, arg_mode, NULL) ON DUPLICATE KEY UPDATE mode=arg_mode;
ELSE
SELECT result;
END IF;
IF arg_mode = "PROTECTING" OR arg_mode = "DETECTING" OR (arg_mode = "OFF" AND reset_done = False) THEN
INSERT INTO firewall_group_allowlist(name, rule)
(
SELECT name, rule FROM performance_schema.firewall_group_allowlist WHERE name=arg_group_name
EXCEPT
SELECT name, rule FROM firewall_group_allowlist WHERE name = arg_group_name
);
END IF;
COMMIT;
END$$
DELIMITER ;