mariadb/mysql-test/suite/encryption/t/innodb-discard-import-change.test
Jan Lindström 283e9cf4cb MDEV-11656: 'Data structure corruption' IMPORT TABLESPACE doesn't work for encrypted InnoDB tables if space_id changed
Problem was that for encryption we use temporary scratch area for
reading and writing tablespace pages. But if page was not really
decrypted the correct updated page was not moved to scratch area
that was then written. This can happen e.g. for page 0 as it is
newer encrypted even if encryption is enabled and as we write
the contents of old page 0 to tablespace it contained naturally
incorrect space_id that is then later noted and error message
was written. Updated page with correct space_id was lost.

If tablespace is encrypted we use additional
temporary scratch area where pages are read
for decrypting readptr == crypt_io_buffer != io_buffer.

Destination for decryption is a buffer pool block
block->frame == dst == io_buffer that is updated.
Pages that did not require decryption even when
tablespace is marked as encrypted are not copied
instead block->frame is set to src == readptr.

If tablespace was encrypted we copy updated page to
writeptr != io_buffer. This fixes above bug.

For encryption we again use temporary scratch area
writeptr != io_buffer == dst
that is then written to the tablespace

(1) For normal tables src == dst ==  writeptr
ut_ad(!encrypted && !page_compressed ?
	src == dst && dst == writeptr + (i * size):1);
(2) For page compressed tables src == dst == writeptr
ut_ad(page_compressed && !encrypted ?
	src == dst && dst == writeptr + (i * size):1);
(3) For encrypted tables src != dst != writeptr
ut_ad(encrypted ?
	src != dst && dst != writeptr + (i * size):1);
2016-12-28 16:32:45 +02:00

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-- source include/have_innodb.inc
-- source include/have_file_key_management_plugin.inc
#
# MDEV-11656: 'Data structure corruption' IMPORT TABLESPACE doesn't work for encrypted InnoDB tables if space_id changed
#
call mtr.add_suppression("InnoDB: Table .* tablespace is set as discarded");
--disable_query_log
let $innodb_file_format_orig = `SELECT @@innodb_file_format`;
let $innodb_file_per_table_orig = `SELECT @@innodb_file_per_table`;
let $innodb_compression_algo = `SELECT @@innodb_compression_algorithm`;
--enable_query_log
--disable_warnings
SET GLOBAL innodb_file_format = `Barracuda`;
SET GLOBAL innodb_file_per_table = ON;
SET GLOBAL innodb_compression_algorithm = 1;
--enable_warnings
create table t1(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb encrypted=yes encryption_key_id=4;
create table t2(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb encrypted=yes encryption_key_id=1;
create table t3(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb page_compressed=yes;
create table t4(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb page_compressed=yes encrypted=yes encryption_key_id=4;
create table t5(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb;
insert into t1 values (NULL, 'verysecretmessage');
insert into t1(b) select b from t1;
insert into t1(b) select b from t1;
insert into t1(b) select b from t1;
insert into t1(b) select b from t1;
insert into t1(b) select b from t1;
insert into t1(b) select b from t1;
insert into t1(b) select b from t1;
insert into t1(b) select b from t1;
insert into t2 select * from t1;
insert into t3 select * from t1;
insert into t4 select * from t1;
insert into t5 select * from t1;
let MYSQLD_DATADIR =`SELECT @@datadir`;
FLUSH TABLE t1,t2,t3,t4,t5 FOR EXPORT;
perl;
do "$ENV{MTR_SUITE_DIR}/include/innodb-util.pl";
ib_backup_tablespaces("test", "t1","t2","t3","t4","t5");
EOF
--list_files $MYSQLD_DATADIR/test
UNLOCK TABLES;
ALTER TABLE t1 DISCARD TABLESPACE;
ALTER TABLE t2 DISCARD TABLESPACE;
ALTER TABLE t3 DISCARD TABLESPACE;
ALTER TABLE t4 DISCARD TABLESPACE;
ALTER TABLE t5 DISCARD TABLESPACE;
#
# Now intentionally change space_id for t1,t3,t4,t5
#
DROP TABLE t1;
DROP TABLE t3;
DROP TABLE t4;
DROP TABLE t5;
create table t6(a int) engine=innodb;
create table t5(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb;
create table t3(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb page_compressed=yes;
create table t1(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb encrypted=yes encryption_key_id=4;
create table t4(c1 bigint not null primary key auto_increment, b char(200)) engine=innodb page_compressed=yes encrypted=yes encryption_key_id=4;
ALTER TABLE t1 DISCARD TABLESPACE;
ALTER TABLE t3 DISCARD TABLESPACE;
ALTER TABLE t4 DISCARD TABLESPACE;
ALTER TABLE t5 DISCARD TABLESPACE;
perl;
do "$ENV{MTR_SUITE_DIR}/include/innodb-util.pl";
ib_discard_tablespaces("test", "t1","t2","t3","t4","t5");
ib_restore_tablespaces("test", "t1","t2","t3","t4","t5");
EOF
ALTER TABLE t1 IMPORT TABLESPACE;
SHOW CREATE TABLE t1;
SELECT COUNT(*) FROM t1;
ALTER TABLE t2 IMPORT TABLESPACE;
SELECT COUNT(*) FROM t2;
ALTER TABLE t3 IMPORT TABLESPACE;
SELECT COUNT(*) FROM t3;
ALTER TABLE t4 IMPORT TABLESPACE;
SELECT COUNT(*) FROM t4;
ALTER TABLE t5 IMPORT TABLESPACE;
SELECT COUNT(*) FROM t5;
#
# Verify
#
--let $MYSQLD_TMPDIR = `SELECT @@tmpdir`
--let $MYSQLD_DATADIR = `SELECT @@datadir`
--let SEARCH_RANGE = 10000000
--let t1_IBD = $MYSQLD_DATADIR/test/t1.ibd
--let t2_IBD = $MYSQLD_DATADIR/test/t2.ibd
--let t3_IBD = $MYSQLD_DATADIR/test/t3.ibd
--let t4_IBD = $MYSQLD_DATADIR/test/t4.ibd
--let t5_IBD = $MYSQLD_DATADIR/test/t5.ibd
--let SEARCH_PATTERN=verysecretmessage
--echo # t1 encrypted expecting NOT FOUND
-- let SEARCH_FILE=$t1_IBD
-- source include/search_pattern_in_file.inc
--echo # t2 encrypted expecting NOT FOUND
-- let SEARCH_FILE=$t2_IBD
-- source include/search_pattern_in_file.inc
--echo # t3 page compressed expecting NOT FOUND
-- let SEARCH_FILE=$t3_IBD
-- source include/search_pattern_in_file.inc
--echo # t4 page compressed and encrypted expecting NOT FOUND
-- let SEARCH_FILE=$t4_IBD
-- source include/search_pattern_in_file.inc
--echo # t5 normal expecting FOUND
-- let SEARCH_FILE=$t5_IBD
-- source include/search_pattern_in_file.inc
DROP TABLE t1,t2,t3,t4,t5,t6;
# reset system
--disable_warnings
--disable_query_log
EVAL SET GLOBAL innodb_file_per_table = $innodb_file_per_table_orig;
EVAL SET GLOBAL innodb_file_format = $innodb_file_format_orig;
EVAL SET GLOBAL innodb_compression_algorithm = $innodb_compression_algo;
--enable_query_log
--enable_warnings