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MySQL 权限管理

背景

  • OS Version : rhel 6.4
  • MySQL Version : 5.6.31

权限

权限列表

Privilege Column Context
CREATE Create_priv databases, tables, or indexes
DROP Drop_priv database, tables, or views
GRANT OPTION Grant_priv database, tables, or stored routines
LOCK TABLES lock_tables_priv databases
REFERENCES References_priv databases or tables, columns
EVENT Event_priv databases
ALTER Alter_priv tables
DELETE Delete_priv tables
INDEX Index_priv tables
INSERT Insert_priv tables or columns
SELECT Select_priv tables or columns
UPDATE Update_priv tables or columns
CREATE TEMPORARY TABLES Create_tmp_table_priv tables
TRIGGER trigger_priv tables
CREATE VIEW Create_view_priv views
SHOW VIEW Show_view_priv views
ALTER ROUTINE alter_routine_priv stored routines
CREATE ROUTINE create_routine_priv stored routines
EXECUTE execute_priv stored routines
FILE file_priv file access on server host (Global)
CREATE TABLESPACE create_tablespace_priv server administration (Global)
CREATE USER create_user_priv server administration (Global)
PROCESS process_priv server administration (Global)
PROXY proxy_priv server administration (user to user)
RELOAD reload_priv server administration (Global)
REPLICATION CLIENT repl_client_priv server administration (Global)
REPLICATION SLAVE repl_slave_priv server administration (Global)
SHOW DATABASES show_db_priv server administration (Global)
SHUTDOWN shutdown_priv server administration (Global)
SUPER super_priv server administration (Global)
ALL [PRIVILEGES] server administration
USAGE server administration

按权限的种类分类

  • 数据访问相关权限
  • 库表结构相关权限
  • 服务相关权限

权限相关表单

MySQL权限信息存储在“mysql”数据中
其中:

  • “user”表负责存储用户信息,及用户本身所拥有的权限;
  • “db”表负责存储用户与db的权限关系;
  • “tables_priv”负责存在用户与table的权限关系;
  • “columns_priv”负责存储用户与column的权限关系;

user表结构

Field Type Null Key Default
Host char(60) NO PRI
User char(16) NO PRI
Password char(41) NO
Select_priv enum(‘N’,’Y’) NO N
Insert_priv enum(‘N’,’Y’) NO N
Update_priv enum(‘N’,’Y’) NO N
Delete_priv enum(‘N’,’Y’) NO N
Create_priv enum(‘N’,’Y’) NO N
Drop_priv enum(‘N’,’Y’) NO N
Reload_priv enum(‘N’,’Y’) NO N
Shutdown_priv enum(‘N’,’Y’) NO N
Process_priv enum(‘N’,’Y’) NO N
File_priv enum(‘N’,’Y’) NO N
Grant_priv enum(‘N’,’Y’) NO N
References_priv enum(‘N’,’Y’) NO N
Index_priv enum(‘N’,’Y’) NO N
Alter_priv enum(‘N’,’Y’) NO N
Show_db_priv enum(‘N’,’Y’) NO N
Super_priv enum(‘N’,’Y’) NO N
Create_tmp_table_priv enum(‘N’,’Y’) NO N
Lock_tables_priv enum(‘N’,’Y’) NO N
Execute_priv enum(‘N’,’Y’) NO N
Repl_slave_priv enum(‘N’,’Y’) NO N
Repl_client_priv enum(‘N’,’Y’) NO N
Create_view_priv enum(‘N’,’Y’) NO N
Show_view_priv enum(‘N’,’Y’) NO N
Create_routine_priv enum(‘N’,’Y’) NO N
Alter_routine_priv enum(‘N’,’Y’) NO N
Create_user_priv enum(‘N’,’Y’) NO N
Event_priv enum(‘N’,’Y’) NO N
Trigger_priv enum(‘N’,’Y’) NO N
Create_tablespace_priv enum(‘N’,’Y’) NO N
ssl_type enum(‘’,’ANY’,’X509’,’SPECIFIED’) NO
ssl_cipher blob NO NULL
x509_issuer blob NO NULL
x509_subject blob NO NULL
max_questions int(11) unsigned NO 0
max_updates int(11) unsigned NO 0
max_connections int(11) unsigned NO 0
max_user_connections int(11) unsigned NO 0
plugin char(64) YES mysql_native_password
authentication_string text YES NULL
password_expired enum(‘N’,’Y’) NO N

db表结构

Field Type Null Key Default
Host char(60) NO PRI
Db char(64) NO PRI
User char(16) NO PRI
Select_priv enum(‘N’,’Y’) NO N
Insert_priv enum(‘N’,’Y’) NO N
Update_priv enum(‘N’,’Y’) NO N
Delete_priv enum(‘N’,’Y’) NO N
Create_priv enum(‘N’,’Y’) NO N
Drop_priv enum(‘N’,’Y’) NO N
Grant_priv enum(‘N’,’Y’) NO N
References_priv enum(‘N’,’Y’) NO N
Index_priv enum(‘N’,’Y’) NO N
Alter_priv enum(‘N’,’Y’) NO N
Create_tmp_table_priv enum(‘N’,’Y’) NO N
Lock_tables_priv enum(‘N’,’Y’) NO N
Create_view_priv enum(‘N’,’Y’) NO N
Show_view_priv enum(‘N’,’Y’) NO N
Create_routine_priv enum(‘N’,’Y’) NO N
Alter_routine_priv enum(‘N’,’Y’) NO N
Execute_priv enum(‘N’,’Y’) NO N
Event_priv enum(‘N’,’Y’) NO N
Trigger_priv enum(‘N’,’Y’) NO N

tables_priv表结构

Field Type Null Key Default Extra
Host char(60) NO PRI
Db char(64) NO PRI
User char(16) NO PRI
Table_name char(64) NO PRI
Grantor char(77) NO MUL
Timestamp timestamp NO CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP
Table_priv set(‘Select’,’Insert’,
‘Update’,’Delete’,
‘Create’,’Drop’,
‘Grant’,’References’,
‘Index’,’Alter’,
‘Create View’,
‘Show view’,’Trigger’)
NO
Column_priv set(‘Select’,’Insert’,
‘Update’,’References’)
NO

columns_priv表结构

Field Type Null Key Default Extra
Host char(60) NO PRI
Db char(64) NO PRI
User char(16) NO PRI
Table_name char(64) NO PRI
Column_name char(64) NO PRI
Timestamp timestamp NO CURRENT_TIMESTAMP on update
CURRENT_TIMESTAMP
Column_priv set(‘Select’,
‘Insert’,
‘Update’,
‘References’)
NO

验证流程

mysql_privilege_flow