install plugin pam soname 'auth_pam_v1.so';
create user test_pam identified via pam using 'mariadb_mtr';
grant all on test.* to test_pam;
create user pam_test;
grant all on test.* to pam_test;
grant proxy on pam_test to test_pam;
#
# athentication is successful, challenge/pin are ok
# note that current_user() differs from user()
#
Challenge input first.
Enter: *************************
Now, the magic number!
PIN: 9225
select user(), current_user(), database();
user()	current_user()	database()
test_pam@localhost	pam_test@%	test
#
# athentication is unsuccessful
#
Challenge input first.
Enter: *************************
Now, the magic number!
PIN: 9224
#
# athentication is successful
#
Now, the magic number!
PIN: 9212
select user(), current_user(), database();
user()	current_user()	database()
test_pam@localhost	pam_test@%	test
#
# athentication is unsuccessful
#
Now, the magic number!
PIN: 9212
drop user test_pam;
drop user pam_test;
uninstall plugin pam;