mariadb/mysql-test/t/trigger_notembedded.test
Dmitry Lenev 378cdc58c1 Patch that refactors global read lock implementation and fixes
bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ
LOCK" and bug #54673 "It takes too long to get readlock for
'FLUSH TABLES WITH READ LOCK'".

The first bug manifested itself as a deadlock which occurred
when a connection, which had some table open through HANDLER
statement, tried to update some data through DML statement
while another connection tried to execute FLUSH TABLES WITH
READ LOCK concurrently.

What happened was that FTWRL in the second connection managed
to perform first step of GRL acquisition and thus blocked all
upcoming DML. After that it started to wait for table open
through HANDLER statement to be flushed. When the first connection
tried to execute DML it has started to wait for GRL/the second
connection creating deadlock.

The second bug manifested itself as starvation of FLUSH TABLES
WITH READ LOCK statements in cases when there was a constant
stream of concurrent DML statements (in two or more
connections).

This has happened because requests for protection against GRL
which were acquired by DML statements were ignoring presence of
pending GRL and thus the latter was starved.

This patch solves both these problems by re-implementing GRL
using metadata locks.

Similar to the old implementation acquisition of GRL in new
implementation is two-step. During the first step we block
all concurrent DML and DDL statements by acquiring global S
metadata lock (each DML and DDL statement acquires global IX
lock for its duration). During the second step we block commits
by acquiring global S lock in COMMIT namespace (commit code
acquires global IX lock in this namespace).

Note that unlike in old implementation acquisition of
protection against GRL in DML and DDL is semi-automatic.
We assume that any statement which should be blocked by GRL
will either open and acquires write-lock on tables or acquires
metadata locks on objects it is going to modify. For any such
statement global IX metadata lock is automatically acquired
for its duration.

The first problem is solved because waits for GRL become
visible to deadlock detector in metadata locking subsystem
and thus deadlocks like one in the first bug become impossible.

The second problem is solved because global S locks which
are used for GRL implementation are given preference over
IX locks which are acquired by concurrent DML (and we can
switch to fair scheduling in future if needed).

Important change:
FTWRL/GRL no longer blocks DML and DDL on temporary tables.
Before this patch behavior was not consistent in this respect:
in some cases DML/DDL statements on temporary tables were
blocked while in others they were not. Since the main use cases
for FTWRL are various forms of backups and temporary tables are
not preserved during backups we have opted for consistently
allowing DML/DDL on temporary tables during FTWRL/GRL.

Important change:
This patch changes thread state names which are used when
DML/DDL of FTWRL is waiting for global read lock. It is now
either "Waiting for global read lock" or "Waiting for commit
lock" depending on the stage on which FTWRL is.

Incompatible change:
To solve deadlock in events code which was exposed by this
patch we have to replace LOCK_event_metadata mutex with
metadata locks on events. As result we have to prohibit
DDL on events under LOCK TABLES.

This patch also adds extensive test coverage for interaction
of DML/DDL and FTWRL.

Performance of new and old global read lock implementations
in sysbench tests were compared. There were no significant
difference between new and old implementations.
2010-11-11 20:11:05 +03:00

983 lines
25 KiB
Text

# Test case(s) in this file contain(s) GRANT/REVOKE statements, which are not
# supported in embedded server. So, this test should not be run on embedded
# server.
-- source include/not_embedded.inc
###########################################################################
#
# Tests for WL#2818:
# - Check that triggers are executed under the authorization of the definer.
# - Check DEFINER clause of CREATE TRIGGER statement;
# - Check that SUPER privilege required to create a trigger with different
# definer.
# - Check that if the user specified as DEFINER does not exist, a warning
# is emitted.
# - Check that the definer of a trigger does not exist, the trigger will
# not be activated.
# - Check that SHOW TRIGGERS statement provides "Definer" column.
# - Check that if trigger contains NEW/OLD variables, the definer must have
# SELECT privilege on the subject table (aka BUG#15166/BUG#15196).
#
# Let's also check that user name part of definer can contain '@' symbol (to
# check that triggers are not affected by BUG#13310 "incorrect user parsing
# by SP").
#
###########################################################################
#
# Prepare environment.
#
DELETE FROM mysql.user WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.db WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.tables_priv WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.columns_priv WHERE User LIKE 'mysqltest_%';
FLUSH PRIVILEGES;
--disable_warnings
DROP DATABASE IF EXISTS mysqltest_db1;
--enable_warnings
CREATE DATABASE mysqltest_db1;
CREATE USER mysqltest_dfn@localhost;
CREATE USER mysqltest_inv@localhost;
GRANT CREATE ON mysqltest_db1.* TO mysqltest_dfn@localhost;
--connect (wl2818_definer_con,localhost,mysqltest_dfn,,mysqltest_db1)
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
CREATE TABLE t1(num_value INT);
CREATE TABLE t2(user_str TEXT);
--disconnect wl2818_definer_con
--connection default
--echo
--echo ---> connection: default
GRANT INSERT, DROP ON mysqltest_db1.t1 TO mysqltest_dfn@localhost;
GRANT INSERT, DROP ON mysqltest_db1.t2 TO mysqltest_dfn@localhost;
#
# Check that the user must have TRIGGER privilege to create a trigger.
#
--connection default
--echo
--echo ---> connection: default
GRANT SUPER ON *.* TO mysqltest_dfn@localhost;
--connect (wl2818_definer_con,localhost,mysqltest_dfn,,mysqltest_db1)
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
--error ER_TABLEACCESS_DENIED_ERROR
CREATE TRIGGER trg1 AFTER INSERT ON t1
FOR EACH ROW
INSERT INTO t2 VALUES(CURRENT_USER());
--disconnect wl2818_definer_con
#
# Check that the user must have TRIGGER privilege to drop a trigger.
#
--connection default
--echo
--echo ---> connection: default
GRANT TRIGGER ON mysqltest_db1.t1 TO mysqltest_dfn@localhost;
--connect (wl2818_definer_con,localhost,mysqltest_dfn,,mysqltest_db1)
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
CREATE TRIGGER trg1 AFTER INSERT ON t1
FOR EACH ROW
INSERT INTO t2 VALUES(CURRENT_USER());
--disconnect wl2818_definer_con
--connection default
--echo
--echo ---> connection: default
REVOKE TRIGGER ON mysqltest_db1.t1 FROM mysqltest_dfn@localhost;
--connect (wl2818_definer_con,localhost,mysqltest_dfn,,mysqltest_db1)
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
--error ER_TABLEACCESS_DENIED_ERROR
DROP TRIGGER trg1;
--disconnect wl2818_definer_con
#
# Check that the definer must have TRIGGER privilege to activate a trigger.
#
--connect (wl2818_definer_con,localhost,mysqltest_dfn,,mysqltest_db1)
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
--error ER_TABLEACCESS_DENIED_ERROR
INSERT INTO t1 VALUES(0);
--disconnect wl2818_definer_con
--connection default
--echo
--echo ---> connection: default
GRANT TRIGGER ON mysqltest_db1.t1 TO mysqltest_dfn@localhost;
--connect (wl2818_definer_con,localhost,mysqltest_dfn,,mysqltest_db1)
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
INSERT INTO t1 VALUES(0);
# Cleanup for further tests.
DROP TRIGGER trg1;
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
--disconnect wl2818_definer_con
--connection default
--echo
--echo ---> connection: default
REVOKE SUPER ON *.* FROM mysqltest_dfn@localhost;
#
# Check that triggers are executed under the authorization of the definer:
# - create two tables under "definer";
# - grant all privileges on the test db to "definer";
# - grant all privileges on the first table to "invoker";
# - grant only select privilege on the second table to "invoker";
# - create a trigger, which inserts a row into the second table after
# inserting into the first table.
# - insert a row into the first table under "invoker". A row also should be
# inserted into the second table.
#
--connect (wl2818_definer_con,localhost,mysqltest_dfn,,mysqltest_db1)
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
CREATE TRIGGER trg1 AFTER INSERT ON t1
FOR EACH ROW
INSERT INTO t2 VALUES(CURRENT_USER());
--connection default
--echo
--echo ---> connection: default
# Setup definer's privileges.
GRANT ALL PRIVILEGES ON mysqltest_db1.t1 TO mysqltest_dfn@localhost;
GRANT ALL PRIVILEGES ON mysqltest_db1.t2 TO mysqltest_dfn@localhost;
# Setup invoker's privileges.
GRANT ALL PRIVILEGES ON mysqltest_db1.t1
TO 'mysqltest_inv'@localhost;
GRANT SELECT ON mysqltest_db1.t2
TO 'mysqltest_inv'@localhost;
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
use mysqltest_db1;
INSERT INTO t1 VALUES(1);
SELECT * FROM t1;
SELECT * FROM t2;
--connect (wl2818_invoker_con,localhost,mysqltest_inv,,mysqltest_db1)
--connection wl2818_invoker_con
--echo
--echo ---> connection: wl2818_invoker_con
use mysqltest_db1;
INSERT INTO t1 VALUES(2);
SELECT * FROM t1;
SELECT * FROM t2;
#
# Check that if definer lost some privilege required to execute (activate) a
# trigger, the trigger will not be activated:
# - create a trigger on insert into the first table, which will insert a row
# into the second table;
# - revoke INSERT privilege on the second table from the definer;
# - insert a row into the first table;
# - check that an error has been risen;
# - check that no row has been inserted into the second table;
#
--connection default
--echo
--echo ---> connection: default
use mysqltest_db1;
REVOKE INSERT ON mysqltest_db1.t2 FROM mysqltest_dfn@localhost;
--connection wl2818_invoker_con
--echo
--echo ---> connection: wl2818_invoker_con
use mysqltest_db1;
--error ER_TABLEACCESS_DENIED_ERROR
INSERT INTO t1 VALUES(3);
SELECT * FROM t1;
SELECT * FROM t2;
#
# Check DEFINER clause of CREATE TRIGGER statement.
#
# - Check that SUPER privilege required to create a trigger with different
# definer:
# - try to create a trigger with DEFINER="definer@localhost" under
# "invoker";
# - analyze error code;
# - Check that if the user specified as DEFINER does not exist, a warning is
# emitted:
# - create a trigger with DEFINER="non_existent_user@localhost" from
# "definer";
# - check that a warning emitted;
# - Check that the definer of a trigger does not exist, the trigger will not
# be activated:
# - activate just created trigger;
# - check error code;
#
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
use mysqltest_db1;
DROP TRIGGER trg1;
# Check that SUPER is required to specify different DEFINER.
--error ER_SPECIFIC_ACCESS_DENIED_ERROR
CREATE DEFINER='mysqltest_inv'@'localhost'
TRIGGER trg1 BEFORE INSERT ON t1
FOR EACH ROW
SET @new_sum = 0;
--connection default
--echo
--echo ---> connection: default
use mysqltest_db1;
GRANT SUPER ON *.* TO mysqltest_dfn@localhost;
--disconnect wl2818_definer_con
--connect (wl2818_definer_con,localhost,mysqltest_dfn,,mysqltest_db1)
--connection wl2818_definer_con
--echo
--echo ---> connection: wl2818_definer_con
CREATE DEFINER='mysqltest_inv'@'localhost'
TRIGGER trg1 BEFORE INSERT ON t1
FOR EACH ROW
SET @new_sum = 0;
# Create with non-existent user.
CREATE DEFINER='mysqltest_nonexs'@'localhost'
TRIGGER trg2 AFTER INSERT ON t1
FOR EACH ROW
SET @new_sum = 0;
# Check that trg2 will not be activated.
--error ER_NO_SUCH_USER
INSERT INTO t1 VALUES(6);
#
# Check that SHOW TRIGGERS statement provides "Definer" column.
#
SHOW TRIGGERS;
#
# Check that weird definer values do not break functionality. I.e. check the
# following definer values:
# - '';
# - '@';
# - '@abc@def@@';
# - '@hostname';
# - '@abc@def@@@hostname';
#
DROP TRIGGER trg1;
DROP TRIGGER trg2;
CREATE TRIGGER trg1 BEFORE INSERT ON t1
FOR EACH ROW
SET @a = 1;
CREATE TRIGGER trg2 AFTER INSERT ON t1
FOR EACH ROW
SET @a = 2;
CREATE TRIGGER trg3 BEFORE UPDATE ON t1
FOR EACH ROW
SET @a = 3;
CREATE TRIGGER trg4 AFTER UPDATE ON t1
FOR EACH ROW
SET @a = 4;
CREATE TRIGGER trg5 BEFORE DELETE ON t1
FOR EACH ROW
SET @a = 5;
# Replace definers with the "weird" definers
let MYSQLD_DATADIR= `select @@datadir`;
perl;
use strict;
use warnings;
my $fname= "$ENV{'MYSQLD_DATADIR'}/mysqltest_db1/t1.TRG";
open(FILE, "<", $fname) or die;
my @content= grep($_ !~ /^definers=/, <FILE>);
close FILE;
open(FILE, ">", $fname) or die;
# Use binary file mode to avoid CR/LF's being added on windows
binmode FILE;
print FILE @content;
print FILE "definers='' '\@' '\@abc\@def\@\@' '\@hostname' '\@abcdef\@\@\@hostname'\n";
close FILE;
EOF
--echo
SELECT trigger_name, definer FROM INFORMATION_SCHEMA.TRIGGERS ORDER BY trigger_name;
--echo
SELECT * FROM INFORMATION_SCHEMA.TRIGGERS ORDER BY trigger_name;
#
# Cleanup
#
--connection default
--echo
--echo ---> connection: default
DROP USER mysqltest_dfn@localhost;
DROP USER mysqltest_inv@localhost;
DROP DATABASE mysqltest_db1;
###########################################################################
#
# BUG#15166: Wrong update [was: select/update] permissions required to execute
# triggers.
#
# BUG#15196: Wrong select permission required to execute triggers.
#
###########################################################################
#
# Prepare environment.
#
DELETE FROM mysql.user WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.db WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.tables_priv WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.columns_priv WHERE User LIKE 'mysqltest_%';
FLUSH PRIVILEGES;
--disable_warnings
DROP DATABASE IF EXISTS mysqltest_db1;
--enable_warnings
CREATE DATABASE mysqltest_db1;
use mysqltest_db1;
# Tables for tesing table-level privileges:
CREATE TABLE t1(col CHAR(20)); # table for "read-value" trigger
CREATE TABLE t2(col CHAR(20)); # table for "write-value" trigger
# Tables for tesing column-level privileges:
CREATE TABLE t3(col CHAR(20)); # table for "read-value" trigger
CREATE TABLE t4(col CHAR(20)); # table for "write-value" trigger
CREATE USER mysqltest_u1@localhost;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_u1@localhost;
GRANT TRIGGER ON mysqltest_db1.* TO mysqltest_u1@localhost;
SET @mysqltest_var = NULL;
--connect (bug15166_u1_con,localhost,mysqltest_u1,,mysqltest_db1)
# parsing (CREATE TRIGGER) time:
# - check that nor SELECT either UPDATE is required to execute triggger w/o
# NEW/OLD variables.
--connection default
--echo
--echo ---> connection: default
use mysqltest_db1;
GRANT DELETE ON mysqltest_db1.* TO mysqltest_u1@localhost;
SHOW GRANTS FOR mysqltest_u1@localhost;
--connection bug15166_u1_con
--echo
--echo ---> connection: bug15166_u1_con
use mysqltest_db1;
CREATE TRIGGER t1_trg_after_delete AFTER DELETE ON t1
FOR EACH ROW
SET @mysqltest_var = 'Hello, world!';
# parsing (CREATE TRIGGER) time:
# - check that UPDATE is not enough to read the value;
# - check that UPDATE is required to modify the value;
--connection default
--echo
--echo ---> connection: default
use mysqltest_db1;
GRANT UPDATE ON mysqltest_db1.t1 TO mysqltest_u1@localhost;
GRANT UPDATE ON mysqltest_db1.t2 TO mysqltest_u1@localhost;
GRANT UPDATE(col) ON mysqltest_db1.t3 TO mysqltest_u1@localhost;
GRANT UPDATE(col) ON mysqltest_db1.t4 TO mysqltest_u1@localhost;
--connection bug15166_u1_con
--echo
--echo ---> connection: bug15166_u1_con
use mysqltest_db1;
# - table-level privileges
# TODO: check privileges at CREATE TRIGGER time.
# --error ER_COLUMNACCESS_DENIED_ERROR
CREATE TRIGGER t1_trg_err_1 BEFORE INSERT ON t1
FOR EACH ROW
SET @mysqltest_var = NEW.col;
DROP TRIGGER t1_trg_err_1;
# TODO: check privileges at CREATE TRIGGER time.
# --error ER_COLUMNACCESS_DENIED_ERROR
CREATE TRIGGER t1_trg_err_2 BEFORE DELETE ON t1
FOR EACH ROW
SET @mysqltest_var = OLD.col;
DROP TRIGGER t1_trg_err_2;
CREATE TRIGGER t2_trg_before_insert BEFORE INSERT ON t2
FOR EACH ROW
SET NEW.col = 't2_trg_before_insert';
# - column-level privileges
# TODO: check privileges at CREATE TRIGGER time.
# --error ER_COLUMNACCESS_DENIED_ERROR
CREATE TRIGGER t3_trg_err_1 BEFORE INSERT ON t3
FOR EACH ROW
SET @mysqltest_var = NEW.col;
DROP TRIGGER t3_trg_err_1;
# TODO: check privileges at CREATE TRIGGER time.
# --error ER_COLUMNACCESS_DENIED_ERROR
CREATE TRIGGER t3_trg_err_2 BEFORE DELETE ON t3
FOR EACH ROW
SET @mysqltest_var = OLD.col;
DROP TRIGGER t3_trg_err_2;
CREATE TRIGGER t4_trg_before_insert BEFORE INSERT ON t4
FOR EACH ROW
SET NEW.col = 't4_trg_before_insert';
# parsing (CREATE TRIGGER) time:
# - check that SELECT is required to read the value;
# - check that SELECT is not enough to modify the value;
--connection default
--echo
--echo ---> connection: default
use mysqltest_db1;
REVOKE UPDATE ON mysqltest_db1.t1 FROM mysqltest_u1@localhost;
REVOKE UPDATE ON mysqltest_db1.t2 FROM mysqltest_u1@localhost;
GRANT SELECT ON mysqltest_db1.t1 TO mysqltest_u1@localhost;
GRANT SELECT ON mysqltest_db1.t2 TO mysqltest_u1@localhost;
REVOKE UPDATE(col) ON mysqltest_db1.t3 FROM mysqltest_u1@localhost;
REVOKE UPDATE(col) ON mysqltest_db1.t4 FROM mysqltest_u1@localhost;
GRANT SELECT(col) on mysqltest_db1.t3 TO mysqltest_u1@localhost;
GRANT SELECT(col) on mysqltest_db1.t4 TO mysqltest_u1@localhost;
--connection bug15166_u1_con
--echo
--echo ---> connection: bug15166_u1_con
use mysqltest_db1;
# - table-level privileges
CREATE TRIGGER t1_trg_after_insert AFTER INSERT ON t1
FOR EACH ROW
SET @mysqltest_var = NEW.col;
CREATE TRIGGER t1_trg_after_update AFTER UPDATE ON t1
FOR EACH ROW
SET @mysqltest_var = OLD.col;
# TODO: check privileges at CREATE TRIGGER time.
# --error ER_COLUMNACCESS_DENIED_ERROR
CREATE TRIGGER t2_trg_err_1 BEFORE UPDATE ON t2
FOR EACH ROW
SET NEW.col = 't2_trg_err_1';
DROP TRIGGER t2_trg_err_1;
# TODO: check privileges at CREATE TRIGGER time.
# --error ER_COLUMNACCESS_DENIED_ERROR
CREATE TRIGGER t2_trg_err_2 BEFORE UPDATE ON t2
FOR EACH ROW
SET NEW.col = CONCAT(OLD.col, '(updated)');
DROP TRIGGER t2_trg_err_2;
# - column-level privileges
CREATE TRIGGER t3_trg_after_insert AFTER INSERT ON t3
FOR EACH ROW
SET @mysqltest_var = NEW.col;
CREATE TRIGGER t3_trg_after_update AFTER UPDATE ON t3
FOR EACH ROW
SET @mysqltest_var = OLD.col;
# TODO: check privileges at CREATE TRIGGER time.
# --error ER_COLUMNACCESS_DENIED_ERROR
CREATE TRIGGER t4_trg_err_1 BEFORE UPDATE ON t4
FOR EACH ROW
SET NEW.col = 't4_trg_err_1';
DROP TRIGGER t4_trg_err_1;
# TODO: check privileges at CREATE TRIGGER time.
# --error ER_COLUMNACCESS_DENIED_ERROR
CREATE TRIGGER t4_trg_err_2 BEFORE UPDATE ON t4
FOR EACH ROW
SET NEW.col = CONCAT(OLD.col, '(updated)');
DROP TRIGGER t4_trg_err_2;
# execution time:
# - check that UPDATE is not enough to read the value;
# - check that UPDATE is required to modify the value;
--connection default
--echo
--echo ---> connection: default
use mysqltest_db1;
REVOKE SELECT ON mysqltest_db1.t1 FROM mysqltest_u1@localhost;
REVOKE SELECT ON mysqltest_db1.t2 FROM mysqltest_u1@localhost;
GRANT UPDATE ON mysqltest_db1.t1 TO mysqltest_u1@localhost;
GRANT UPDATE ON mysqltest_db1.t2 TO mysqltest_u1@localhost;
REVOKE SELECT(col) ON mysqltest_db1.t3 FROM mysqltest_u1@localhost;
REVOKE SELECT(col) ON mysqltest_db1.t4 FROM mysqltest_u1@localhost;
GRANT UPDATE(col) ON mysqltest_db1.t3 TO mysqltest_u1@localhost;
GRANT UPDATE(col) ON mysqltest_db1.t4 TO mysqltest_u1@localhost;
# - table-level privileges
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t1 VALUES('line1');
SELECT * FROM t1;
SELECT @mysqltest_var;
INSERT INTO t2 VALUES('line2');
SELECT * FROM t2;
# - column-level privileges
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t3 VALUES('t3_line1');
SELECT * FROM t3;
SELECT @mysqltest_var;
INSERT INTO t4 VALUES('t4_line2');
SELECT * FROM t4;
# execution time:
# - check that SELECT is required to read the value;
# - check that SELECT is not enough to modify the value;
--connection default
--echo
--echo ---> connection: default
use mysqltest_db1;
REVOKE UPDATE ON mysqltest_db1.t1 FROM mysqltest_u1@localhost;
REVOKE UPDATE ON mysqltest_db1.t2 FROM mysqltest_u1@localhost;
GRANT SELECT ON mysqltest_db1.t1 TO mysqltest_u1@localhost;
GRANT SELECT ON mysqltest_db1.t2 TO mysqltest_u1@localhost;
REVOKE UPDATE(col) ON mysqltest_db1.t3 FROM mysqltest_u1@localhost;
REVOKE UPDATE(col) ON mysqltest_db1.t4 FROM mysqltest_u1@localhost;
GRANT SELECT(col) ON mysqltest_db1.t3 TO mysqltest_u1@localhost;
GRANT SELECT(col) ON mysqltest_db1.t4 TO mysqltest_u1@localhost;
# - table-level privileges
INSERT INTO t1 VALUES('line3');
SELECT * FROM t1;
SELECT @mysqltest_var;
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t2 VALUES('line4');
SELECT * FROM t2;
# - column-level privileges
INSERT INTO t3 VALUES('t3_line2');
SELECT * FROM t3;
SELECT @mysqltest_var;
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t4 VALUES('t4_line2');
SELECT * FROM t4;
# execution time:
# - check that nor SELECT either UPDATE is required to execute triggger w/o
# NEW/OLD variables.
DELETE FROM t1;
SELECT @mysqltest_var;
#
# Cleanup.
#
DROP USER mysqltest_u1@localhost;
DROP DATABASE mysqltest_db1;
#
# Test for bug #14635 Accept NEW.x as INOUT parameters to stored
# procedures from within triggers
#
# We require UPDATE privilege when NEW.x passed as OUT parameter, and
# SELECT and UPDATE when NEW.x passed as INOUT parameter.
#
DELETE FROM mysql.user WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.db WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.tables_priv WHERE User LIKE 'mysqltest_%';
DELETE FROM mysql.columns_priv WHERE User LIKE 'mysqltest_%';
FLUSH PRIVILEGES;
--disable_warnings
DROP DATABASE IF EXISTS mysqltest_db1;
--enable_warnings
CREATE DATABASE mysqltest_db1;
USE mysqltest_db1;
CREATE TABLE t1 (i1 INT);
CREATE TABLE t2 (i1 INT);
CREATE USER mysqltest_dfn@localhost;
CREATE USER mysqltest_inv@localhost;
GRANT EXECUTE, CREATE ROUTINE, TRIGGER ON *.* TO mysqltest_dfn@localhost;
GRANT INSERT ON mysqltest_db1.* TO mysqltest_inv@localhost;
connect (definer,localhost,mysqltest_dfn,,mysqltest_db1);
connect (invoker,localhost,mysqltest_inv,,mysqltest_db1);
connection definer;
CREATE PROCEDURE p1(OUT i INT) DETERMINISTIC NO SQL SET i = 3;
CREATE PROCEDURE p2(INOUT i INT) DETERMINISTIC NO SQL SET i = i * 5;
# Check that having no privilege won't work.
connection definer;
CREATE TRIGGER t1_bi BEFORE INSERT ON t1 FOR EACH ROW
CALL p1(NEW.i1);
CREATE TRIGGER t2_bi BEFORE INSERT ON t2 FOR EACH ROW
CALL p2(NEW.i1);
connection invoker;
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t1 VALUES (7);
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t2 VALUES (11);
connection definer;
DROP TRIGGER t2_bi;
DROP TRIGGER t1_bi;
# Check that having only SELECT privilege is not enough.
connection default;
GRANT SELECT ON mysqltest_db1.* TO mysqltest_dfn@localhost;
connection definer;
CREATE TRIGGER t1_bi BEFORE INSERT ON t1 FOR EACH ROW
CALL p1(NEW.i1);
CREATE TRIGGER t2_bi BEFORE INSERT ON t2 FOR EACH ROW
CALL p2(NEW.i1);
connection invoker;
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t1 VALUES (13);
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t2 VALUES (17);
connection default;
REVOKE SELECT ON mysqltest_db1.* FROM mysqltest_dfn@localhost;
connection definer;
DROP TRIGGER t2_bi;
DROP TRIGGER t1_bi;
# Check that having only UPDATE privilege is enough for OUT parameter,
# but not for INOUT parameter.
connection default;
GRANT UPDATE ON mysqltest_db1.* TO mysqltest_dfn@localhost;
connection definer;
CREATE TRIGGER t1_bi BEFORE INSERT ON t1 FOR EACH ROW
CALL p1(NEW.i1);
CREATE TRIGGER t2_bi BEFORE INSERT ON t2 FOR EACH ROW
CALL p2(NEW.i1);
connection invoker;
INSERT INTO t1 VALUES (19);
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t2 VALUES (23);
connection default;
REVOKE UPDATE ON mysqltest_db1.* FROM mysqltest_dfn@localhost;
connection definer;
DROP TRIGGER t2_bi;
DROP TRIGGER t1_bi;
# Check that having SELECT and UPDATE privileges is enough.
connection default;
GRANT SELECT, UPDATE ON mysqltest_db1.* TO mysqltest_dfn@localhost;
connection definer;
CREATE TRIGGER t1_bi BEFORE INSERT ON t1 FOR EACH ROW
CALL p1(NEW.i1);
CREATE TRIGGER t2_bi BEFORE INSERT ON t2 FOR EACH ROW
CALL p2(NEW.i1);
connection invoker;
INSERT INTO t1 VALUES (29);
INSERT INTO t2 VALUES (31);
connection default;
REVOKE SELECT, UPDATE ON mysqltest_db1.* FROM mysqltest_dfn@localhost;
connection definer;
DROP TRIGGER t2_bi;
DROP TRIGGER t1_bi;
connection default;
DROP PROCEDURE p2;
DROP PROCEDURE p1;
# Check that late procedure redefining won't open a security hole.
connection default;
GRANT UPDATE ON mysqltest_db1.* TO mysqltest_dfn@localhost;
connection definer;
CREATE PROCEDURE p1(OUT i INT) DETERMINISTIC NO SQL SET i = 37;
CREATE TRIGGER t1_bi BEFORE INSERT ON t1 FOR EACH ROW
CALL p1(NEW.i1);
connection invoker;
INSERT INTO t1 VALUES (41);
connection definer;
DROP PROCEDURE p1;
CREATE PROCEDURE p1(IN i INT) DETERMINISTIC NO SQL SET @v1 = i + 43;
connection invoker;
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t1 VALUES (47);
connection definer;
DROP PROCEDURE p1;
CREATE PROCEDURE p1(INOUT i INT) DETERMINISTIC NO SQL SET i = i + 51;
connection invoker;
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO t1 VALUES (53);
connection default;
DROP PROCEDURE p1;
REVOKE UPDATE ON mysqltest_db1.* FROM mysqltest_dfn@localhost;
connection definer;
DROP TRIGGER t1_bi;
# Cleanup.
disconnect definer;
disconnect invoker;
connection default;
DROP USER mysqltest_inv@localhost;
DROP USER mysqltest_dfn@localhost;
DROP TABLE t2;
DROP TABLE t1;
DROP DATABASE mysqltest_db1;
USE test;
--echo End of 5.0 tests.
#
# Bug#23713 LOCK TABLES + CREATE TRIGGER + FLUSH TABLES WITH READ LOCK = deadlock
#
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (i int);
connect (flush,localhost,root,,test,,);
connection default;
--echo connection: default
lock tables t1 write;
connection flush;
--echo connection: flush
--send flush tables with read lock;
connection default;
--echo connection: default
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for global read lock";
--source include/wait_condition.inc
create trigger t1_bi before insert on t1 for each row begin end;
unlock tables;
connection flush;
--echo connection: flush
--reap
unlock tables;
connection default;
select * from t1;
drop table t1;
disconnect flush;
#
# Bug#45412 SHOW CREATE TRIGGER does not require privileges to disclose trigger data
#
CREATE DATABASE db1;
CREATE TABLE db1.t1 (a char(30)) ENGINE=MEMORY;
CREATE TRIGGER db1.trg AFTER INSERT ON db1.t1 FOR EACH ROW
INSERT INTO db1.t1 VALUES('Some very sensitive data goes here');
CREATE USER 'no_rights'@'localhost';
REVOKE ALL ON *.* FROM 'no_rights'@'localhost';
FLUSH PRIVILEGES;
connect (con1,localhost,no_rights,,);
SELECT trigger_name FROM INFORMATION_SCHEMA.TRIGGERS
WHERE trigger_schema = 'db1';
--error ER_SPECIFIC_ACCESS_DENIED_ERROR
SHOW CREATE TRIGGER db1.trg;
connection default;
disconnect con1;
DROP USER 'no_rights'@'localhost';
DROP DATABASE db1;
#
# Bug#55421 Protocol::end_statement(): Assertion `0' on multi-table UPDATE IGNORE
# To reproduce a crash we need to provoke a trigger execution with
# the following conditions:
# - active SELECT statement during trigger execution
# (i.e. LEX::current_select != NULL);
# - IGNORE option (i.e. LEX::current_select->no_error == TRUE);
--disable_warnings
DROP DATABASE IF EXISTS mysqltest_db1;
--enable_warnings
CREATE DATABASE mysqltest_db1;
USE mysqltest_db1;
GRANT ALL ON mysqltest_db1.* TO mysqltest_u1@localhost;
--connect(con1,localhost,mysqltest_u1,,mysqltest_db1)
CREATE TABLE t1 (
a1 int,
a2 int
);
INSERT INTO t1 VALUES (1, 20);
CREATE TRIGGER mysqltest_db1.upd_t1
BEFORE UPDATE ON t1 FOR EACH ROW SET new.a2 = 200;
CREATE TABLE t2 (
a1 int
);
INSERT INTO t2 VALUES (2);
--connection default
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_u1@localhost;
--error ER_TABLEACCESS_DENIED_ERROR
UPDATE IGNORE t1, t2 SET t1.a1 = 2, t2.a1 = 3 WHERE t1.a1 = 1 AND t2.a1 = 2;
# Cleanup
DROP DATABASE mysqltest_db1;
DROP USER mysqltest_u1@localhost;
--disconnect con1
--connection default
USE test;
--echo End of 5.1 tests.