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MDEV-13095 Implement User Account locking

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Add server support for user account locking.
This patch extends the ALTER/CREATE USER statements for
denying a user's subsequent login attempts:
  ALTER USER
    user [, user2] ACCOUNT [LOCK | UNLOCK]
  CREATE USER
    user [, user2] ACCOUNT [LOCK | UNLOCK]
The SHOW CREATE USER statement was updated to display the
locking state of an user.

Closes #1006
This commit is contained in:
Robert Bindar
2019-02-13 20:02:42 +01:00
committed by Sergei Golubchik
parent d89cdfc229
commit 6c8ce999f8
11 changed files with 419 additions and 5 deletions
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24
sql/sql_lex.h
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@ -2939,6 +2939,27 @@ public:
Explain_delete* save_explain_delete_data(MEM_ROOT *mem_root, THD *thd);
};
enum account_lock_type
{
ACCOUNTLOCK_UNSPECIFIED,
ACCOUNTLOCK_LOCKED,
ACCOUNTLOCK_UNLOCKED
};
struct Account_options
{
Account_options()
: account_locked(ACCOUNTLOCK_UNSPECIFIED)
{ }
void reset()
{
account_locked= ACCOUNTLOCK_UNSPECIFIED;
}
account_lock_type account_locked;
};
class Query_arena_memroot;
/* The state of the lex parsing. This is saved in the THD struct */
@ -3030,6 +3051,9 @@ public:
*/
LEX_USER *definer;
/* Used in ALTER/CREATE user to store account locking options */
Account_options account_options;
Table_type table_type; /* Used for SHOW CREATE */
List<Key_part_spec> ref_list;
List<LEX_USER> users_list;