WL#1365: Implement definer's rights execution of stored procedures.

(Also put the hostpart back in the definer column.)


mysql-test/r/sp-error.result:
  Moved error test from sp.test
mysql-test/r/sp.result:
  Moved error test to sp-error.test.
  Put hostpart back into definer column in mysql.proc.
mysql-test/t/sp-error.test:
  Moved error test from sp.test
mysql-test/t/sp.test:
  Moved error test to sp-error.test.
  Put hostpart back into definer column in mysql.proc.
sql/item_func.cc:
  (Maybe) switch security context before invoking a stored function.
sql/sp.cc:
  Renamed creator into definer, for more consistent terminology, and put the
  hostpart back.
sql/sp_head.cc:
  Some fixes in the way things are allocated, and moved set_info() definition
  here from sp_head.h. creator is now called definer, and is split into a
  user and host part.
  Added functions for (possible) change and restore of privileges, for sql security
  definer calls.
sql/sp_head.h:
  Moved set_info() definition here from sp_head.h.
  creator is now called definer, and is split into a user and host part.
  Added functions for (possible) change and restore of privileges, for sql security
  definer calls.
sql/sql_acl.cc:
  New function acl_getroot_no_password() for getting the privileges used when
  calling an SP with sql security definer.
sql/sql_acl.h:
  New function acl_getroot_no_password() for getting the privileges used when
  calling an SP with sql security definer.
sql/sql_parse.cc:
  (Maybe) switch security context before invoking a stored procedure.
sql/sql_yacc.yy:
  Fixed typo.

1 files changed, 44 insertions, 0 deletions

diff --git a/mysql-test/r/sp-security.result b/mysql-test/r/sp-security.result
new file mode 100644
index 00000000000..00e22ceebd4
--- /dev/null
+++ b/mysql-test/r/sp-security.result
@@ -0,0 +1,44 @@
+use test;
+grant usage on *.* to dummy@localhost;
+drop database if exists db1_secret;
+create database db1_secret;
+use db1_secret;
+create table t1 ( u varchar(64), i int );
+create procedure stamp(i int)
+insert into db1_secret.t1 values (user(), i);
+show procedure status like 'stamp';
+Name	Type	Definer	Modified	Created	Security_type	Comment
+stamp	PROCEDURE	root@localhost	0000-00-00 00:00:00	0000-00-00 00:00:00	DEFINER	
+call stamp(1);
+select * from t1;
+u	i
+root@localhost	1
+call stamp(2);
+select * from db1_secret.t1;
+ERROR 42000: Access denied for user: 'dummy'@'localhost' to database 'db1_secret'
+call stamp(3);
+select * from db1_secret.t1;
+ERROR 42000: Access denied for user: ''@'localhost' to database 'db1_secret'
+select * from t1;
+u	i
+root@localhost	1
+dummy@localhost	2
+anon@localhost	3
+alter procedure stamp sql security invoker;
+show procedure status like 'stamp';
+Name	Type	Definer	Modified	Created	Security_type	Comment
+stamp	PROCEDURE	root@localhost	0000-00-00 00:00:00	0000-00-00 00:00:00	INVOKER	
+call stamp(4);
+select * from t1;
+u	i
+root@localhost	1
+dummy@localhost	2
+anon@localhost	3
+root@localhost	4
+call stamp(5);
+ERROR 42000: Access denied for user: 'dummy'@'localhost' to database 'db1_secret'
+call stamp(6);
+ERROR 42000: Access denied for user: ''@'localhost' to database 'db1_secret'
+use test;
+drop database db1_secret;
+delete from mysql.user where user='dummy';