database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

MDEV-11340 Allow multiple alternative authentication methods for the same user

Browse Source 
introduce the syntax

... IDENTIFIED { WITH | VIA }
      plugin [ { USING | AS } auth ]
 [ OR plugin [ { USING | AS } auth ]
 [ OR ... ]]

Server will try auth plugins in the specified order until the first
success. No protocol changes, server uses the existing "switch plugin"
packet.

The auth chain is stored in json as

  "auth_or":[{"plugin":"xxx","authentication_string":"yyy"},
             {},
             {"plugin":"foo","authentication_string":"bar"},
            ...],
  "plugin":"aaa", "authentication_string":"bbb"

Note:
* "auth_or" implies that there might be "auth_and" someday;
* one entry in the array is an empty object, meaning to take plugin/auth
  from the main json object. This preserves compatibility with
  the existing mysql.global_priv table and with the mysql.user view.
  This entry is preferrably a mysql_native_password plugin for a
  non-empty mysql.user.password column.

SET PASSWORD is supported and changes the password for the *first*
plugin in the chain that has a notion of a "password"
This commit is contained in:
Sergei Golubchik
2019-01-10 13:51:51 +01:00
parent 798d1a9ddf
commit 5b15cc613e
12 changed files with 1061 additions and 419 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mysql-test/main/alter_user.result
View File

@ -65,7 +65,7 @@ alter user foo identified with 'somecoolplugin';
ERROR HY000: Operation ALTER USER failed for 'foo'@'%'
show warnings;
Level Code Message
Warning 1524 Plugin 'somecoolplugin' is not loaded
Error 1524 Plugin 'somecoolplugin' is not loaded
Error 1396 Operation ALTER USER failed for 'foo'@'%'
alter user foo identified with 'mysql_old_password';
select * from mysql.user where user = 'foo';