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89 lines
3.0 KiB
89 lines
3.0 KiB
3 months ago
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/* Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "sql_restart_server.h"
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#ifndef _WIN32
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#include <sys/types.h>
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#include <unistd.h>
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#include <sstream>
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#endif // _WIN32
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#include "my_thread.h" // my_thread_handle
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#include "mysql/components/services/log_builtins.h" // LogErr
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#include "mysqld.h" // opt_noacl
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#include "mysqld_error.h" // ER_SPECIFIC_ACCESS_DENIED_ERROR
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#include "sql/auth/auth_acls.h" // SHUTDOWN_ACL
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#include "sql/auth/sql_security_ctx.h" // Security_context
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#include "sql/log.h" // Query_logger
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#include "sql/sql_class.h" // THD
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#include "sql/sql_lex.h" // LEX
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extern my_thread_handle signal_thread_id;
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/**
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Check if a current user has the privilege SHUTDOWN_ACL required to run
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the statement RESTART.
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@param thd Current thread
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@retval false A user has the privilege SHUTDOWN_ACL.
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@retval true A user doesn't have the privilege SHUTDOWN_ACL..
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*/
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static inline bool check_restart_server_admin_privilege(THD *thd) {
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return !opt_noacl && check_global_access(thd, SHUTDOWN_ACL);
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}
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bool is_mysqld_managed() {
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#ifndef _WIN32
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char *parent_pid = getenv("MYSQLD_PARENT_PID");
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if (parent_pid == nullptr) return false;
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return atoi(parent_pid) == getppid();
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#else
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return !(opt_debugging || opt_no_monitor);
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#endif // _WIN32
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}
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bool Sql_cmd_restart_server::execute(THD *thd) {
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DBUG_TRACE;
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if (check_restart_server_admin_privilege(thd)) return true;
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// RESTART shall not be binlogged.
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thd->lex->no_write_to_binlog = 1;
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query_logger.general_log_print(thd, COM_QUERY, NullS);
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if (signal_restart_server()) {
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my_error(ER_RESTART_SERVER_FAILED, MYF(0), "Restart server failed");
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return true;
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}
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LogErr(SYSTEM_LEVEL, ER_RESTART_RECEIVED_INFO,
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thd->security_context()->user().str, server_version);
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my_ok(thd);
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return false;
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}
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