sql_user_table.h File Reference

#include "mysql/my_loglevel.h"
#include "sql/sql_system_table_check.h"

Go to the source code of this file.

Classes
class	Acl_table_intact
	Class to validate the flawlessness of ACL table before performing ACL operations. More...

Typedefs
typedef enum ACL_TABLES	ACL_TABLES
	Enum for ACL tables. More...

Enumerations
enum	ACL_TABLES {   TABLE_USER = 0 , TABLE_DB , TABLE_TABLES_PRIV , TABLE_COLUMNS_PRIV ,   TABLE_PROCS_PRIV , TABLE_PROXIES_PRIV , TABLE_ROLE_EDGES , TABLE_DEFAULT_ROLES ,   TABLE_DYNAMIC_PRIV , TABLE_PASSWORD_HISTORY , LAST_ENTRY }
	Enum for ACL tables. More...

Functions
int	handle_grant_table (THD *, Table_ref *tables, ACL_TABLES table_no, bool drop, LEX_USER *user_from, LEX_USER *user_to)
	Handle a privilege table. More...

Typedef Documentation

ACL_TABLES

typedef enum ACL_TABLES ACL_TABLES

Enum for ACL tables.

Keep in sync with Acl_table_names

Enumeration Type Documentation

ACL_TABLES

enum ACL_TABLES

Enum for ACL tables.

Keep in sync with Acl_table_names

Enumerator
TABLE_USER
TABLE_DB
TABLE_TABLES_PRIV
TABLE_COLUMNS_PRIV
TABLE_PROCS_PRIV
TABLE_PROXIES_PRIV
TABLE_ROLE_EDGES
TABLE_DEFAULT_ROLES
TABLE_DYNAMIC_PRIV
TABLE_PASSWORD_HISTORY
LAST_ENTRY

Function Documentation

handle_grant_table()

int handle_grant_table	(	THD *	,
		Table_ref *	tables,
		ACL_TABLES	table_no,
		bool	drop,
		LEX_USER *	user_from,
		LEX_USER *	user_to
	)

Handle a privilege table.

Parameters

tables	The array with the four open tables.
table_no	The number of the table to handle (0..4).
drop	If user_from is to be dropped.
user_from	The the user to be searched/dropped/renamed.
user_to	The new name for the user if to be renamed, NULL otherwise.

This function scans through following tables: mysql.user, mysql.db, mysql.tables_priv, mysql.columns_priv, mysql.procs_priv, mysql.proxies_priv. For all above tables, we do an index scan and then iterate over the found records do following: Delete from grant table if drop is true. Update in grant table if drop is false and user_to is not NULL. Search in grant table if drop is false and user_to is NULL.

Returns

Operation result

Return values

0	OK, but no record matched.
<	0 Error.
>	0 At least one record matched.